STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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OF WIND OBSERVATION **** **** 155 **** 155 150 155 155 150 155 150 155 1380 VECTOR WIND DIRECTION (MEAN) *** *** 266 *** 304 298 298 304 297 265 260 201 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** 1.5 **** 1.1 1.8 1.4 2.4 1.7 1.4 0.2 1.1 **** WIND STEADINESES (MEAN %) ***** ***** 38.5 ***** 40.7 52.9 41.2 68.6 63.0 58.3 20.0 52.4 ***** WIND SPEED (MEAN KNOTS) **** **** 3.9 **** 2.7 3.4 3.4 3.5 2.7 2.4 1.0 2.1 **** FASTEST WIND DIRECTION *** *** 210 *** 220 300 90 270 310 240 270 190 *** FASTEST WIND SPEED (KNOTS) *** *** 20 *** 30 15 15 25 15 20 12 20 *** DAY ** ** 7 ** 25 1 1 19 21 5 11 4 DAYS WITH SKY CLEAR (0-2)/8 **** **** 7 **** 6 20 23 22 23 10 9 5 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** 14 **** 12 10 7 7 7 12 12 12 **** DAYS WITH CLOUDY (7-8)/8 **** **** 10 **** 13 0 1 2 0 9 9 14 **** DAYS WITH VISIBILITY =< 2 KM **** **** 0 **** 1 0 1 0 0 2 4 4 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1977 JAN. 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QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 899.4 ****** 895.1 891.9 890.7 893.4 897.8 898.6 897.7 897.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** 909.0 ****** 900.0 895.2 894.8 898.4 903.9 906.3 904.6 908.2 ****** DAY ** ** 10 ** 29 6 21 23 30 24 27 13 MIN. QFE PRESSURE IN HPA ****** ****** 891.8 ****** 889.6 887.9 887.1 885.6 893.1 889.9 888.2 890.2 ****** DAY ** ** 4 ** 25 22 27 17 12 5 18 10 MEAN QNH PRESSURE IN HPA ****** ****** 1024.7 ****** 1019.9 1016.3 1015.0 1018.0 1022.9 1023.7 1022.8 1022.2 ****** MAX. 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QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 899.0 ****** 894.5 890.9 889.6 892.5 897.2 898.4 897.4 897.1 ****** MAX. QFE PRESSURE IN HPA ****** ****** 909.8 ****** 898.9 894.4 893.6 897.5 905.4 906.7 904.5 906.9 ****** DAY ** ** 9 ** 29 5 21 23 30 23 27 13 MIN. QFE PRESSURE IN HPA ****** ****** 890.2 ****** 889.1 887.1 886.0 884.3 892.7 888.2 888.1 888.3 ****** DAY ** ** 27 ** 25 19 11 17 12 5 18 22 MEAN QNH PRESSURE IN HPA ****** ****** 1024.2 ****** 1019.2 1015.2 1013.8 1017.0 1022.2 1023.5 1022.5 1022.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1036.2 ****** 1024.1 1019.1 1018.2 1022.6 1031.3 1032.8 1030.3 1033.0 ****** DAY ** ** 9 ** 29 5 21 23 30 23 27 13 MIN. 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QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1977 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 898.5 ****** 894.2 890.0 888.3 891.1 895.7 897.6 897.2 897.0 ****** MAX. QFE PRESSURE IN HPA ****** ****** 911.2 ****** 898.7 894.7 891.5 895.9 903.6 906.9 904.1 905.6 ****** DAY ** ** 9 ** 28 9 21 23 30 23 26 18 MIN. 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QFF PRESSURE IN HPA ****** ****** 1014.2 ****** 1008.8 1001.3 999.3 999.9 1009.9 1011.0 1013.8 1014.6 ****** DAY ** ** 4 ** 4 21 8 17 15 17 17 22 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.7 2.1 7.6 14.8 16.9 22.2 26.4 25.0 23.2 15.8 5.3 6.6 14.0 MINIMUN AIR TEMPERATURE (C) -4.3 -3.4 0.2 7.1 9.3 13.0 16.4 14.3 11.7 6.5 0.1 0.8 6.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 1 1 0 0 0 0 2 DAYS WITH MINIMUM TEMP. <=-4 17 11 5 0 0 0 0 0 0 0 6 6 45 DAYS WITH FREEZING MIN.<= 0 27 22 15 1 0 0 0 0 0 0 19 14 98 TEMPERATURE RECORDS LOWEST(C) -15.0 -13.0 -11.0 0.0 1.0 8.0 11.0 8.0 5.0 1.0 -7.0 -9.0 -15.0 DAY 23 7 1 17 2 4 9 24 29 7 6 24 MAXIMUM AIR TEMPERATURE (C) 7.3 7.0 13.2 20.1 21.9 27.3 31.7 31.5 30.8 22.8 10.3 11.6 19.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 2 11 24 25 23 0 0 0 87 DAYS WITH MAXIMUM TEMP. <= 0 0 4 0 0 0 0 0 0 0 0 0 0 4 TEMPERATURE RECORDS HIGHEST(C) 16.0 18.0 24.0 30.0 31.0 36.0 40.0 36.0 36.0 28.0 17.0 21.0 40.0 DAY 4 21 31 25 14 21 1 13 12 13 1 12 DIF. BETWEEN (MAX.-MIN.) (C) 11.6 10.4 13.0 13.0 12.6 14.3 15.3 17.2 19.1 16.3 10.2 10.8 13.6 MEAN DAILY TEMP. (MDT) (C) 1.5 1.8 6.7 13.6 15.6 20.2 24.0 22.9 21.2 14.6 5.2 6.2 12.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.5 0.0 23.5 97.5 67.0 28.0 0.0 0.0 0.0 217.5 HEATING DEG. DAYS(BASE 18 0C) 511.0 453.5 350.5 139.5 92.0 11.5 0.0 0.0 5.0 106.0 383.0 366.0 2418.0 DEWPOINT (MEAN C) -4.8 -2.6 -0.2 5.6 9.5 10.7 11.3 8.5 6.1 5.0 -0.4 -0.8 4.0 MIXING RATIO (G/KG) 3.15 3.72 4.33 6.52 8.56 9.24 9.78 8.37 7.02 6.26 4.25 4.20 6.28 VAPOUR PRESSURE (HPA) 4.51 5.32 6.17 9.24 12.11 13.03 13.79 11.83 9.97 8.96 6.11 6.01 8.92 SATURATION DEF. (HPA) 2.85 2.45 5.29 8.93 8.41 15.09 22.20 21.46 20.51 10.00 3.15 4.36 10.39 RELATIVE HUMIDITY (MEAN %) 65 73 62 60 65 52 43 40 39 53 69 64 57 RELATIVE HUMIDITY (MAX. %) 78 87 85 85 86 76 69 66 65 79 85 82 79 RELATIVE HUMIDITY (MIN. %) 52 61 45 43 52 39 29 25 21 33 55 47 42 RELATIVE HUMIDITY (MEAN% 03UTC) 74 85 83 83 85 75 69 66 65 78 83 79 77 RELATIVE HUMIDITY (MEAN% 09UTC) 57 66 52 49 55 44 35 29 26 41 60 56 48 RELATIVE HUMIDITY (MEAN% 15UTC) 67 74 60 55 63 45 34 33 35 51 73 61 54 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 21.4 68.2 27.5 42.8 71.0 1.9 0.0 0.0 13.0 0.4 25.4 11.9 283.5 DAYS WITH PRECIPITATION >=10 0 2 0 2 3 0 0 0 1 0 1 0 9 DAYS WITH PRECIPITATION >= 5 2 5 3 4 5 0 0 0 1 0 2 0 22 DAYS WITH PRECIPITATION >= 1 5 9 5 7 9 1 0 0 1 0 6 6 49 DAYS WITH PRECIPITATION 9 10 10 16 13 4 0 0 1 4 11 9 87 GREATEST DAILY PRECIPITATION 8.0 19.0 7.0 15.0 19.1 1.0 0.0 0.0 13.0 0.1 12.0 3.0 19.1 DAY 22 23 13 15 2 2 ** ** 26 2 19 8 DAY WITH THUNDER STORM 0 0 1 5 8 2 0 0 0 0 1 0 17 DAYS WITH SNOW OR SLEET 4 8 3 0 1 0 0 0 0 0 3 2 21 DAYS WITH DUST 1 0 0 1 0 0 1 1 1 1 0 0 6 WIND DIRECTION (PREVAILING) 180 270 270 315 270 270 315 270 315 315 270 180 270 PREVAILING WIND SPEED(KNOTS) 9.6 6.8 6.0 7.1 7.5 7.8 7.2 8.8 8.3 7.2 7.2 11.1 7.5 PREVAILING WIND PERCENT 9.7 10.0 16.8 15.3 18.1 21.3 20.6 12.9 11.3 11.6 10.0 22.6 11.6 CALMS PERCENT OF WIND 75.5 67.9 61.3 56.0 54.2 46.7 41.9 59.4 67.3 75.5 74.7 51.6 60.9 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 194 283 274 273 288 299 323 311 332 273 268 188 278 VECTOR WIND MAGNITUDE(KNOTS) 1.4 0.8 1.5 2.0 1.6 2.3 2.6 1.7 1.1 1.4 0.9 2.9 1.2 WIND STEADINESES (MEAN %) 66.7 40.0 57.7 60.6 51.6 54.8 60.5 54.8 40.7 70.0 50.0 69.0 41.4 WIND SPEED (MEAN KNOTS) 2.1 2.0 2.6 3.3 3.1 4.2 4.3 3.1 2.7 2.0 1.8 4.2 2.9 FASTEST WIND DIRECTION 180 290 200 190 270 300 270 270 270 210 170 180 210 FASTEST WIND SPEED (KNOTS) 15 15 20 20 15 15 15 15 15 25 20 20 25 DAY 1 12 12 6 7 2 19 9 25 31 7 16 DAYS WITH SKY CLEAR (0-2)/8 10 10 11 2 7 17 27 27 25 13 7 8 164 DAYS WITH P.CLOUDY (3-6)/8 11 7 10 16 13 10 4 4 5 15 11 12 118 DAYS WITH CLOUDY (7-8)/8 10 11 10 12 11 3 0 0 0 3 12 11 83 DAYS WITH VISIBILITY =< 2 KM 2 6 0 1 2 0 0 0 0 0 0 1 12 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 897.0 897.1 894.3 891.1 893.0 891.0 892.1 892.1 894.3 898.9 899.5 895.4 894.6 MAX. QFE PRESSURE IN HPA 907.9 908.3 902.3 899.5 901.5 903.5 899.2 898.5 902.1 907.0 907.8 911.2 911.2 DAY-HOUR 13- 6 6- 6 19-15 12- 3 3- 3 8- 3 8- 3 21- 6 28- 6 10- 6 27- 6 24- 6 MIN. QFE PRESSURE IN HPA 883.5 887.3 880.6 879.6 884.0 877.9 881.1 886.7 888.0 890.5 888.7 883.0 877.9 DAY-HOUR 21- 9 22- 3 13-12 25-15 30- 9 21-12 1-15 14-12 1-15 1- 3 1- 0 16- 9 MEAN QNH PRESSURE IN HPA 1022.0 1022.1 1019.0 1015.4 1017.5 1015.4 1016.5 1016.6 1018.9 1024.2 1024.8 1020.3 1019.4 MAX. QNH PRESSURE IN HPA 1034.1 1034.6 1027.9 1024.8 1027.0 1029.2 1024.5 1023.7 1027.7 1033.1 1034.0 1037.8 1037.8 DAY-HOUR 13- 6 6- 6 19-15 12- 3 3- 3 8- 3 8- 3 21- 6 28- 6 10- 6 27- 6 24- 6 MIN. QNH PRESSURE IN HPA 1007.0 1011.2 1003.8 1002.7 1007.6 1000.8 1004.3 1010.6 1012.0 1014.8 1012.8 1006.4 1000.8 DAY-HOUR 21- 9 22- 3 13-12 25-15 30- 9 21-12 1-15 14-12 1-15 1- 3 1- 0 16- 9 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 897.1 896.7 894.5 891.4 893.5 892.0 893.2 893.3 895.2 899.4 899.8 895.3 895.1 MAX. QFE PRESSURE IN HPA 907.5 908.0 901.6 899.5 901.5 903.5 899.2 897.8 901.5 905.2 906.9 909.5 909.5 DAY 13 6 20 12 3 8 8 21 28 10 27 24 MIN. QFE PRESSURE IN HPA 884.0 887.3 885.0 885.3 884.6 882.8 885.4 888.9 889.9 890.5 889.2 883.8 882.8 DAY 21 22 12 10 30 22 1 14 2 1 1 16 MEAN QNH PRESSURE IN HPA 1022.1 1021.7 1019.2 1015.7 1018.1 1016.5 1017.8 1017.9 1020.0 1024.6 1025.1 1020.1 1019.9 MAX. QNH PRESSURE IN HPA 1033.7 1034.2 1027.1 1024.8 1027.0 1029.2 1024.5 1022.9 1027.0 1031.1 1033.0 1035.9 1035.9 DAY 13 6 20 12 3 8 8 21 28 10 27 24 MIN. QNH PRESSURE IN HPA 1007.6 1011.2 1008.7 1009.0 1008.2 1006.2 1009.1 1013.0 1014.1 1014.8 1013.3 1007.3 1006.2 DAY 21 22 12 10 30 22 1 14 2 1 1 16 MEAN QFF PRESSURE IN HPA 1026.6 1025.8 1021.0 1013.7 1014.8 1011.0 1010.5 1011.5 1015.0 1022.9 1027.6 1021.9 1018.5 MAX. QFF PRESSURE IN HPA 1040.5 1042.9 1030.8 1025.5 1029.2 1025.3 1018.9 1017.6 1024.7 1030.3 1037.7 1043.5 1043.5 DAY 13 6 20 12 3 8 8 30 28 11 6 24 MIN. QFF PRESSURE IN HPA 1007.4 1009.9 1006.8 1003.0 1003.7 998.7 1000.8 1006.0 1008.1 1011.1 1008.1 1006.8 998.7 DAY 21 22 25 10 30 22 1 14 2 1 1 16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 897.8 897.9 895.2 892.0 893.5 891.9 893.2 893.5 895.7 900.2 900.8 896.7 895.7 MAX. QFE PRESSURE IN HPA 907.9 908.3 902.2 899.3 901.5 903.2 898.5 898.5 902.1 907.0 907.8 911.2 911.2 DAY 13 6 19 12 3 8 8 21 28 10 27 24 MIN. QFE PRESSURE IN HPA 883.7 889.7 884.4 885.0 884.1 882.9 884.8 888.6 890.3 893.9 891.0 884.8 882.9 DAY 21 22 12 25 30 22 1 14 2 1 8 16 MEAN QNH PRESSURE IN HPA 1022.9 1023.0 1020.0 1016.5 1018.2 1016.3 1017.8 1018.2 1020.6 1025.6 1026.3 1021.7 1020.6 MAX. QNH PRESSURE IN HPA 1034.1 1034.6 1027.8 1024.6 1027.0 1028.9 1023.7 1023.7 1027.7 1033.1 1034.0 1037.8 1037.8 DAY 13 6 19 12 3 8 8 21 28 10 27 24 MIN. QNH PRESSURE IN HPA 1007.2 1013.9 1008.0 1008.7 1007.7 1006.3 1008.4 1012.7 1014.6 1018.6 1015.3 1008.4 1006.3 DAY 21 22 12 25 30 22 1 14 2 1 8 16 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 896.9 897.7 894.4 891.2 892.9 891.0 892.0 892.2 894.2 899.1 899.4 895.4 894.7 MAX. QFE PRESSURE IN HPA 907.0 907.4 901.8 898.8 900.6 902.1 897.4 897.1 899.7 906.4 906.2 908.7 908.7 DAY 13 6 19 13 3 8 7 21 26 10 5 24 MIN. QFE PRESSURE IN HPA 883.5 890.4 882.2 882.0 884.0 881.0 883.2 887.7 889.6 893.5 889.8 883.0 881.0 DAY 21 17 13 25 30 21 1 14 2 29 8 16 MEAN QNH PRESSURE IN HPA 1021.9 1022.7 1019.1 1015.6 1017.4 1015.3 1016.5 1016.7 1018.9 1024.3 1024.7 1020.2 1019.4 MAX. QNH PRESSURE IN HPA 1033.1 1033.6 1027.3 1024.0 1026.0 1027.7 1022.5 1022.1 1025.0 1032.5 1032.2 1035.0 1035.0 DAY 13 6 19 13 3 8 7 21 26 10 5 24 MIN. QNH PRESSURE IN HPA 1007.0 1014.7 1005.6 1005.3 1007.6 1004.2 1006.7 1011.7 1013.8 1018.1 1014.0 1006.4 1004.2 DAY 21 17 13 25 30 21 1 14 2 29 8 16 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 896.2 896.5 893.4 890.3 892.2 890.0 890.9 890.8 892.9 897.8 898.6 894.7 893.7 MAX. QFE PRESSURE IN HPA 906.3 907.5 901.4 897.3 900.3 900.9 896.4 895.5 899.5 905.7 906.3 906.7 907.5 DAY 13 5 19 13 2 8 7 21 26 10 5 24 MIN. QFE PRESSURE IN HPA 884.6 888.7 880.6 881.4 884.5 877.9 881.5 886.7 888.4 891.2 890.2 883.1 877.9 DAY 21 17 13 25 30 21 1 14 1 29 8 16 MEAN QNH PRESSURE IN HPA 1021.2 1021.5 1018.0 1014.6 1016.7 1014.2 1015.2 1015.1 1017.5 1022.9 1023.8 1019.4 1018.3 MAX. QNH PRESSURE IN HPA 1032.3 1033.7 1026.9 1022.3 1025.7 1026.3 1021.3 1020.3 1024.8 1031.7 1032.3 1032.8 1033.7 DAY 13 5 19 13 2 8 7 21 26 10 5 24 MIN. QNH PRESSURE IN HPA 1008.2 1012.8 1003.8 1004.7 1008.1 1000.8 1004.8 1010.6 1012.4 1015.6 1014.4 1006.6 1000.8 DAY 21 17 13 25 30 21 1 14 1 29 8 16 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1978 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 896.9 896.6 893.9 890.5 892.8 890.3 891.2 890.8 893.3 898.3 899.4 895.2 894.1 MAX. QFE PRESSURE IN HPA 905.9 908.1 902.3 897.9 901.2 899.8 896.9 895.3 901.1 906.1 906.8 908.2 908.2 DAY 13 5 19 13 2 8 7 21 26 10 5 23 MIN. QFE PRESSURE IN HPA 888.0 887.8 883.0 879.6 884.4 877.9 881.1 887.0 888.0 891.6 892.9 885.0 877.9 DAY 21 17 13 25 31 21 1 5 1 29 7 16 MEAN QNH PRESSURE IN HPA 1021.9 1021.6 1018.6 1014.8 1017.3 1014.6 1015.6 1015.1 1017.9 1023.4 1024.7 1020.0 1018.8 MAX. QNH PRESSURE IN HPA 1031.9 1034.3 1027.9 1023.0 1026.7 1025.1 1021.9 1020.1 1026.6 1032.1 1032.9 1034.5 1034.5 DAY 13 5 19 13 2 8 7 21 26 10 5 23 MIN. QNH PRESSURE IN HPA 1012.0 1011.8 1006.4 1002.7 1008.0 1000.8 1004.3 1010.9 1012.0 1016.0 1017.4 1008.7 1000.8 DAY 21 17 13 25 31 21 1 5 1 29 7 16 MEAN QFF PRESSURE IN HPA 1026.3 1025.6 1020.1 1012.7 1014.0 1008.9 1008.4 1008.7 1012.8 1021.6 1027.2 1021.7 1017.3 MAX. QFF PRESSURE IN HPA 1038.7 1040.7 1030.4 1023.5 1028.0 1020.9 1016.9 1014.1 1022.3 1030.1 1036.5 1040.8 1040.8 DAY 13 5 19 13 2 8 7 21 26 10 5 23 MIN. QFF PRESSURE IN HPA 1013.2 1013.5 1005.8 998.2 1003.7 992.8 994.8 1003.8 1006.8 1012.3 1016.6 1008.0 992.8 DAY 21 21 12 25 31 21 1 14 1 29 1 16 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.9 3.5 7.4 15.3 17.0 23.4 28.2 24.3 21.6 16.7 8.0 4.1 14.2 MINIMUN AIR TEMPERATURE (C) -4.2 -1.1 0.8 8.2 8.5 14.4 17.4 13.5 12.2 8.9 0.0 0.1 6.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 2 1 0 0 0 0 3 DAYS WITH MINIMUM TEMP. <=-4 16 6 7 0 0 0 0 0 0 0 14 2 45 DAYS WITH FREEZING MIN.<= 0 24 18 14 0 0 0 0 0 0 0 18 19 93 TEMPERATURE RECORDS LOWEST(C) -12.0 -14.0 -9.0 1.0 2.0 10.0 13.0 8.0 6.0 5.0 -6.0 -9.0 -14.0 DAY 14 20 6 18 1 1 2 22 25 10 20 23 MAXIMUM AIR TEMPERATURE (C) 5.9 8.4 12.4 21.1 22.2 28.3 34.1 30.7 28.9 24.0 16.7 8.8 20.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 0 12 31 21 15 1 0 0 81 DAYS WITH MAXIMUM TEMP. <= 0 2 1 1 0 0 0 0 0 0 0 0 1 5 TEMPERATURE RECORDS HIGHEST(C) 17.0 19.0 22.0 30.0 28.0 34.0 39.0 36.0 36.0 32.0 27.0 16.0 39.0 DAY 4 15 19 9 16 30 12 18 8 4 3 6 DIF. BETWEEN (MAX.-MIN.) (C) 10.1 9.5 11.6 12.9 13.7 13.9 16.7 17.2 16.7 15.1 16.7 8.7 13.5 MEAN DAILY TEMP. (MDT) (C) 0.8 3.6 6.6 14.7 15.3 21.4 25.7 22.1 20.5 16.5 8.4 4.4 13.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.5 0.0 31.0 146.0 47.5 35.0 0.0 0.0 0.0 260.0 HEATING DEG. DAYS(BASE 18 0C) 532.5 402.0 354.0 120.0 92.5 0.5 0.0 0.5 15.0 57.0 288.5 421.0 2283.5 DEWPOINT (MEAN C) -4.9 -1.1 0.1 6.0 5.8 10.0 10.3 5.6 8.5 7.3 -1.6 -0.8 3.8 MIXING RATIO (G/KG) 3.09 4.07 4.51 6.81 6.73 8.84 9.31 6.75 8.18 7.36 4.10 4.10 6.15 VAPOUR PRESSURE (HPA) 4.44 5.81 6.42 9.67 9.58 12.51 13.13 9.58 11.64 10.50 5.89 5.86 8.75 SATURATION DEF. (HPA) 2.78 2.54 5.09 9.26 10.81 17.25 26.85 22.54 15.85 9.56 5.94 2.67 10.93 RELATIVE HUMIDITY (MEAN %) 70 74 65 60 53 46 37 34 48 58 57 73 56 RELATIVE HUMIDITY (MAX. %) 82 88 88 83 79 69 61 57 74 82 86 89 78 RELATIVE HUMIDITY (MIN. %) 58 61 49 41 37 33 23 21 28 38 34 57 40 RELATIVE HUMIDITY (MEAN% 03UTC) 77 86 87 82 79 69 61 57 73 81 82 85 77 RELATIVE HUMIDITY (MEAN% 09UTC) 64 68 55 50 42 38 29 26 36 45 42 64 47 RELATIVE HUMIDITY (MEAN% 15UTC) 71 74 59 55 46 39 28 26 43 55 55 74 52 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 37.0 47.6 57.0 31.8 41.1 12.2 0.0 3.0 33.0 14.1 20.0 49.2 346.0 DAYS WITH PRECIPITATION >=10 1 1 2 1 2 0 0 0 1 0 1 1 10 DAYS WITH PRECIPITATION >= 5 3 5 2 3 2 1 0 0 3 1 1 5 26 DAYS WITH PRECIPITATION >= 1 10 11 11 3 5 3 0 1 4 4 2 10 64 DAYS WITH PRECIPITATION 11 15 18 13 9 5 0 2 4 5 2 13 97 GREATEST DAILY PRECIPITATION 10.0 10.0 25.4 15.0 19.0 5.0 0.0 3.0 17.0 6.0 18.0 10.0 25.4 DAY 11 9 28 26 7 9 ** 20 14 28 5 9 DAY WITH THUNDER STORM 0 0 1 3 3 2 0 1 1 0 0 0 11 DAYS WITH SNOW OR SLEET 8 10 6 0 0 0 0 0 0 0 0 4 28 DAYS WITH DUST 0 0 0 1 1 0 2 0 0 0 1 0 5 WIND DIRECTION (PREVAILING) 180 270 270 270 270 270 270 360 315 270 180 180 270 PREVAILING WIND SPEED(KNOTS) 12.1 9.3 6.9 8.3 8.8 7.7 9.7 8.2 6.5 7.2 12.1 7.8 8.0 PREVAILING WIND PERCENT 9.7 10.7 16.1 22.7 15.5 16.7 12.9 15.1 7.8 9.1 4.4 13.4 10.6 CALMS PERCENT OF WIND 78.7 72.1 61.3 48.0 60.6 54.7 48.4 50.3 78.3 80.1 83.9 75.3 66.7 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 159 180 186 180 186 1951 VECTOR WIND DIRECTION (MEAN) 175 267 278 269 303 293 328 338 302 282 203 191 283 VECTOR WIND MAGNITUDE(KNOTS) 1.3 1.3 1.7 2.8 1.9 1.7 1.5 2.5 0.8 1.0 0.8 1.2 1.1 WIND STEADINESES (MEAN %) 68.4 59.1 63.0 63.6 63.3 50.0 34.9 65.8 57.1 71.4 57.1 70.6 42.3 WIND SPEED (MEAN KNOTS) 1.9 2.2 2.7 4.4 3.0 3.4 4.3 3.8 1.4 1.4 1.4 1.7 2.6 FASTEST WIND DIRECTION 200 280 270 210 270 270 270 270 330 270 180 180 280 FASTEST WIND SPEED (KNOTS) 20 30 15 20 15 15 22 15 12 15 30 15 30 DAY 2 18 23 13 24 7 31 2 18 27 29 23 DAYS WITH SKY CLEAR (0-2)/8 10 1 8 3 10 21 27 26 26 15 19 9 175 DAYS WITH P.CLOUDY (3-6)/8 9 11 11 10 12 6 4 5 2 11 8 10 99 DAYS WITH CLOUDY (7-8)/8 12 16 12 17 9 3 0 0 2 5 3 12 91 DAYS WITH VISIBILITY =< 2 KM 9 5 2 0 0 0 0 0 0 1 0 1 18 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 897.6 894.1 894.6 894.0 895.8 893.8 891.5 893.2 897.5 897.6 900.3 895.8 895.5 MAX. QFE PRESSURE IN HPA 910.6 902.9 904.0 905.9 903.6 901.9 898.3 900.2 903.4 907.0 909.2 905.5 910.6 DAY-HOUR 18- 6 13- 6 5- 6 27- 6 25- 6 10-15 20- 6 29- 6 23- 6 9- 6 11- 6 4- 6 MIN. QFE PRESSURE IN HPA 884.8 884.2 882.2 886.0 887.7 886.1 883.4 886.3 890.1 888.1 883.6 883.3 882.2 DAY-HOUR 6- 9 11-15 27-15 12-12 17- 9 23-12 6-15 14-12 5-15 4-12 29-12 1-12 MEAN QNH PRESSURE IN HPA 1022.6 1018.8 1019.3 1018.6 1020.7 1018.4 1015.9 1017.8 1022.6 1022.6 1025.7 1020.7 1020.3 MAX. QNH PRESSURE IN HPA 1037.1 1028.6 1029.8 1031.9 1029.3 1027.5 1023.5 1025.6 1029.1 1033.1 1035.6 1031.5 1037.1 DAY-HOUR 18- 6 13- 6 5- 6 27- 6 25- 6 10-15 20- 6 29- 6 23- 6 9- 6 11- 6 4- 6 MIN. QNH PRESSURE IN HPA 1008.4 1007.8 1005.6 1009.8 1011.7 1009.9 1006.9 1010.1 1014.3 1012.1 1007.1 1006.8 1005.6 DAY-HOUR 6- 9 11-15 27-15 12-12 17- 9 23-12 6-15 14-12 5-15 4-12 29-12 1-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1017.8 1020.0 ****** 1023.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1025.9 1031.3 ****** 1036.3 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 24- 6 9- 3 **-** 22- 6 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1009.0 1008.2 ****** 1008.4 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 5-15 4-18 **-** 1- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 897.6 893.9 894.8 894.4 896.3 895.1 892.5 893.8 898.3 898.2 901.0 895.5 895.9 MAX. QFE PRESSURE IN HPA 908.9 901.7 903.0 904.9 903.1 901.9 897.2 899.7 902.6 906.6 908.5 903.7 908.9 DAY 18 13 5 27 25 11 20 29 23 9 11 22 MIN. QFE PRESSURE IN HPA 887.9 885.1 886.2 888.9 888.5 888.9 886.2 887.8 893.0 892.9 886.5 885.9 885.1 DAY 6 12 28 13 17 23 6 14 6 27 29 1 MEAN QNH PRESSURE IN HPA 1022.6 1018.6 1019.5 1019.1 1021.2 1019.9 1017.0 1018.5 1023.4 1023.3 1026.4 1020.4 1020.8 MAX. QNH PRESSURE IN HPA 1035.2 1027.2 1028.7 1030.8 1028.8 1027.5 1022.2 1025.0 1028.2 1032.7 1034.8 1029.5 1035.2 DAY 18 13 5 27 25 11 20 29 23 9 11 22 MIN. QNH PRESSURE IN HPA 1011.9 1008.8 1010.0 1013.0 1012.6 1013.0 1010.0 1011.8 1017.6 1017.4 1010.3 1009.7 1008.8 DAY 6 12 28 13 17 23 6 14 6 27 29 1 MEAN QFF PRESSURE IN HPA 1026.8 1021.6 1021.1 1016.7 1018.2 1013.7 1009.0 1012.5 1018.6 1020.6 1028.4 1022.9 1019.2 MAX. QFF PRESSURE IN HPA 1042.7 1029.6 1034.5 1032.4 1027.6 1023.1 1014.0 1020.3 1025.5 1031.3 1038.3 1035.5 1042.7 DAY 19 19 5 27 25 11 20 29 23 9 19 22 MIN. QFF PRESSURE IN HPA 1011.7 1010.2 1006.4 1007.8 1008.4 1006.3 1002.0 1005.0 1012.0 1014.2 1007.6 1008.4 1002.0 DAY 6 12 27 15 17 23 6 14 6 27 29 1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 898.6 894.9 895.7 894.8 896.6 894.8 892.6 894.2 898.8 898.9 901.7 896.7 896.5 MAX. QFE PRESSURE IN HPA 910.6 902.9 904.0 905.9 903.6 901.1 898.3 900.2 903.4 907.0 909.2 905.5 910.6 DAY 18 13 5 27 25 11 20 29 23 9 11 4 MIN. QFE PRESSURE IN HPA 888.3 887.4 885.8 889.1 888.6 888.3 885.8 888.1 894.0 893.9 886.3 887.0 885.8 DAY 6 12 27 13 17 23 6 14 6 4 29 1 MEAN QNH PRESSURE IN HPA 1023.8 1019.7 1020.6 1019.5 1021.5 1019.5 1017.1 1018.9 1024.0 1024.2 1027.3 1021.7 1021.5 MAX. QNH PRESSURE IN HPA 1037.1 1028.6 1029.8 1031.9 1029.3 1026.6 1023.5 1025.6 1029.1 1033.1 1035.6 1031.5 1037.1 DAY 18 13 5 27 25 11 20 29 23 9 11 4 MIN. QNH PRESSURE IN HPA 1012.3 1011.3 1009.6 1013.2 1012.7 1012.3 1009.6 1012.1 1018.7 1018.6 1010.1 1010.9 1009.6 DAY 6 12 27 13 17 23 6 14 6 4 29 1 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1018.7 1020.9 1028.8 1024.2 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1025.9 1031.1 1038.9 1036.3 ****** DAY ** ** ** ** ** ** ** ** 24 9 19 22 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1012.3 1013.4 1007.2 1010.1 ****** DAY ** ** ** ** ** ** ** ** 9 4 29 1 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 897.6 894.3 894.9 894.0 895.8 893.6 891.7 893.2 897.8 897.7 900.4 896.0 895.6 MAX. QFE PRESSURE IN HPA 909.2 902.0 903.3 905.4 903.0 900.6 897.1 899.3 902.4 906.4 907.7 905.3 909.2 DAY 18 13 5 27 27 10 20 29 23 9 11 4 MIN. QFE PRESSURE IN HPA 884.8 885.9 884.9 887.3 887.7 886.9 885.0 887.3 892.6 891.0 884.9 885.1 884.8 DAY 6 11 27 12 17 23 6 14 5 4 29 1 MEAN QNH PRESSURE IN HPA 1022.6 1019.0 1019.7 1018.6 1020.7 1018.3 1016.1 1017.7 1022.8 1022.7 1025.7 1020.9 1020.4 MAX. QNH PRESSURE IN HPA 1035.6 1027.6 1029.0 1031.3 1028.7 1026.0 1022.1 1024.6 1028.0 1032.5 1033.9 1031.2 1035.6 DAY 18 13 5 27 27 10 20 29 23 9 11 4 MIN. QNH PRESSURE IN HPA 1008.4 1009.7 1008.6 1011.2 1011.7 1010.8 1008.7 1011.2 1017.1 1015.3 1008.6 1008.8 1008.4 DAY 6 11 27 12 17 23 6 14 5 4 29 1 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 896.9 893.4 893.7 893.1 895.1 892.6 890.4 892.1 896.4 896.3 899.2 895.0 894.5 MAX. QFE PRESSURE IN HPA 909.1 901.0 902.3 905.2 901.7 901.0 895.4 898.0 901.2 904.7 906.4 903.7 909.1 DAY 18 27 2 27 27 10 20 29 23 9 10 4 MIN. QFE PRESSURE IN HPA 885.4 884.3 883.2 886.0 888.2 886.1 883.8 886.3 890.6 888.1 883.6 883.3 883.2 DAY 6 11 27 12 16 23 6 14 5 4 29 1 MEAN QNH PRESSURE IN HPA 1021.9 1018.0 1018.4 1017.6 1019.9 1017.2 1014.7 1016.5 1021.3 1021.2 1024.4 1019.8 1019.2 MAX. QNH PRESSURE IN HPA 1035.5 1026.5 1027.9 1031.1 1027.2 1026.5 1020.2 1023.1 1026.7 1030.6 1032.5 1029.5 1035.5 DAY 18 27 2 27 27 10 20 29 23 9 10 4 MIN. QNH PRESSURE IN HPA 1009.1 1007.9 1006.7 1009.8 1012.2 1009.9 1007.3 1010.1 1014.9 1012.1 1007.1 1006.8 1006.7 DAY 6 11 27 12 16 23 6 14 5 4 29 1 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1979 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 897.4 894.1 894.0 893.8 895.4 892.7 890.5 892.3 896.5 896.9 899.7 895.7 894.9 MAX. QFE PRESSURE IN HPA 909.3 901.0 902.9 904.8 901.2 901.9 895.2 898.1 901.1 904.8 907.8 903.8 909.3 DAY 18 27 5 27 27 10 20 29 23 9 10 22 MIN. QFE PRESSURE IN HPA 887.9 884.2 882.2 887.5 889.8 886.6 883.4 886.6 890.1 890.2 884.2 886.2 882.2 DAY 6 11 27 12 17 23 6 14 5 4 29 1 MEAN QNH PRESSURE IN HPA 1022.4 1018.8 1018.7 1018.4 1020.2 1017.3 1014.8 1016.8 1021.5 1021.9 1025.0 1020.5 1019.7 MAX. QNH PRESSURE IN HPA 1035.7 1026.5 1028.6 1030.7 1026.7 1027.5 1020.0 1023.2 1026.6 1030.7 1034.0 1029.6 1035.7 DAY 18 27 5 27 27 10 20 29 23 9 10 22 MIN. QNH PRESSURE IN HPA 1011.9 1007.8 1005.6 1011.4 1014.0 1010.4 1006.9 1010.4 1014.3 1014.4 1007.8 1010.0 1005.6 DAY 6 11 27 12 17 23 6 14 5 4 29 1 MEAN QFF PRESSURE IN HPA 1026.6 1021.7 1020.1 1016.0 1017.1 1011.1 1006.8 1010.8 1016.6 1019.1 1026.9 1023.1 1018.0 MAX. QFF PRESSURE IN HPA 1041.4 1030.8 1034.5 1032.2 1023.8 1023.1 1011.8 1018.6 1023.4 1029.2 1036.3 1035.4 1041.4 DAY 18 27 5 27 24 10 20 28 23 9 19 22 MIN. QFF PRESSURE IN HPA 1011.4 1009.3 1001.9 1006.9 1010.1 1003.5 998.4 1003.8 1009.0 1009.9 1004.8 1010.6 998.4 DAY 6 11 27 12 16 23 6 14 5 4 29 1 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 897.6 897.6 900.2 896.0 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 902.4 905.5 908.1 903.2 ****** DAY ** ** ** ** ** ** ** ** 23 9 10 22 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 892.1 889.9 884.6 886.6 ****** DAY ** ** ** ** ** ** ** ** 5 4 29 1 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1022.7 1022.6 1025.6 1020.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1028.0 1031.5 1034.3 1028.9 ****** DAY ** ** ** ** ** ** ** ** 23 9 10 22 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1016.6 1014.1 1008.2 1010.4 ****** DAY ** ** ** ** ** ** ** ** 5 4 29 1 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1017.3 1019.5 1027.2 1023.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1025.1 1029.5 1036.0 1034.5 ****** DAY ** ** ** ** ** ** ** ** 23 9 19 22 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1010.7 1008.2 1005.1 1011.3 ****** DAY ** ** ** ** ** ** ** ** 5 4 29 1 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -0.1 -1.6 6.7 16.6 19.3 23.9 27.5 25.1 20.7 12.9 9.8 4.3 13.8 MINIMUN AIR TEMPERATURE (C) -4.3 -6.4 1.7 8.6 11.2 14.2 16.8 16.4 11.2 5.9 3.8 -1.1 6.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 2 3 0 0 0 0 5 DAYS WITH MINIMUM TEMP. <=-4 18 17 2 0 0 0 0 0 0 0 0 7 44 DAYS WITH FREEZING MIN.<= 0 27 29 12 1 0 0 0 0 0 2 6 24 101 TEMPERATURE RECORDS LOWEST(C) -16.0 -19.0 -6.0 0.0 6.0 10.0 11.0 8.0 6.0 -1.0 -2.0 -5.0 -19.0 DAY 26 4 5 18 8 2 1 26 24 24 25 16 MAXIMUM AIR TEMPERATURE (C) 4.9 2.8 11.9 23.1 25.5 29.8 34.0 31.9 28.6 19.8 15.6 10.2 19.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 9 18 30 24 12 3 0 0 96 DAYS WITH MAXIMUM TEMP. <= 0 5 6 0 0 0 0 0 0 0 0 0 0 11 TEMPERATURE RECORDS HIGHEST(C) 14.0 8.0 24.0 29.0 34.0 37.0 37.0 39.0 35.0 33.0 22.0 18.0 39.0 DAY 6 22 30 23 23 7 9 20 6 4 12 5 DIF. BETWEEN (MAX.-MIN.) (C) 9.2 9.2 10.2 14.5 14.3 15.6 17.2 15.5 17.4 13.9 11.8 11.3 13.3 MEAN DAILY TEMP. (MDT) (C) 0.3 -1.8 6.8 15.8 18.3 22.0 25.4 24.1 19.9 12.9 9.7 4.5 13.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 10.0 46.0 137.5 100.5 13.5 2.5 0.0 0.0 310.0 HEATING DEG. DAYS(BASE 18 0C) 549.5 574.0 347.5 75.0 34.0 0.5 0.0 0.0 5.0 175.0 249.0 417.0 2426.5 DEWPOINT (MEAN C) -5.1 -5.2 1.3 6.2 8.7 8.5 8.7 11.1 8.2 4.9 3.6 -1.2 4.1 MIXING RATIO (G/KG) 3.03 3.08 4.84 6.82 8.03 8.23 8.40 9.77 7.97 6.24 5.62 3.99 6.33 VAPOUR PRESSURE (HPA) 4.33 4.41 6.89 9.67 11.39 11.64 11.86 13.79 11.32 8.91 8.04 5.71 9.00 SATURATION DEF. (HPA) 2.12 1.28 3.69 10.29 12.47 19.56 26.48 19.55 14.83 7.36 4.64 3.01 10.44 RELATIVE HUMIDITY (MEAN %) 72 77 71 54 55 43 35 46 49 63 69 71 59 RELATIVE HUMIDITY (MAX. %) 85 87 88 82 80 67 57 68 74 87 91 87 79 RELATIVE HUMIDITY (MIN. %) 58 68 55 34 37 26 20 29 29 41 48 52 41 RELATIVE HUMIDITY (MEAN% 03UTC) 83 85 86 79 79 67 57 67 72 86 88 86 78 RELATIVE HUMIDITY (MEAN% 09UTC) 63 74 64 41 42 33 26 35 37 48 55 57 48 RELATIVE HUMIDITY (MEAN% 15UTC) 71 77 67 45 49 33 26 39 46 58 69 71 54 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 40.8 93.0 42.8 25.9 6.8 5.0 0.0 0.0 5.3 16.9 42.6 25.6 304.7 DAYS WITH PRECIPITATION >=10 0 3 1 1 0 0 0 0 0 0 1 1 7 DAYS WITH PRECIPITATION >= 5 4 4 4 2 0 1 0 0 0 1 2 1 19 DAYS WITH PRECIPITATION >= 1 9 9 10 5 3 1 0 0 3 5 10 6 61 DAYS WITH PRECIPITATION 10 14 16 6 7 2 0 0 3 9 13 7 87 GREATEST DAILY PRECIPITATION 9.0 39.0 10.0 13.4 3.0 5.0 0.0 0.0 3.0 8.0 21.0 14.0 39.0 DAY 24 12 19 5 10 1 ** ** 10 14 18 19 DAY WITH THUNDER STORM 0 0 2 7 6 0 0 1 0 1 1 0 18 DAYS WITH SNOW OR SLEET 9 13 6 0 0 0 0 0 0 0 0 5 33 DAYS WITH DUST 0 0 0 4 1 0 0 0 1 1 1 0 8 WIND DIRECTION (PREVAILING) 180 270 270 270 315 270 315 270 315 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 10.4 7.3 6.2 7.9 7.3 8.5 8.2 7.3 7.4 7.0 8.5 5.5 7.7 PREVAILING WIND PERCENT 9.7 4.6 11.9 16.1 15.6 20.0 17.2 15.6 14.4 14.0 9.4 7.0 12.1 CALMS PERCENT OF WIND 74.2 86.8 61.6 62.8 51.6 43.3 47.3 59.7 69.4 68.8 76.7 83.9 65.4 NO. OF WIND OBSERVATION 186 174 185 180 186 180 186 186 180 186 180 186 2195 VECTOR WIND DIRECTION (MEAN) 214 291 298 257 282 301 325 300 292 280 230 265 284 VECTOR WIND MAGNITUDE(KNOTS) 1.2 0.3 0.7 1.4 2.2 2.4 2.1 2.1 1.9 1.5 1.2 0.5 1.3 WIND STEADINESES (MEAN %) 60.0 37.5 26.9 48.3 59.5 54.5 48.8 75.0 82.6 75.0 63.2 55.6 52.0 WIND SPEED (MEAN KNOTS) 2.0 0.8 2.6 2.9 3.7 4.4 4.3 2.8 2.3 2.0 1.9 0.9 2.5 FASTEST WIND DIRECTION 180 280 330 220 270 240 310 270 270 290 270 300 270 FASTEST WIND SPEED (KNOTS) 18 15 10 18 17 15 15 15 15 12 30 10 30 DAY 28 18 6 16 16 9 16 3 21 4 10 1 DAYS WITH SKY CLEAR (0-2)/8 9 7 6 7 8 23 30 25 26 9 9 12 171 DAYS WITH P.CLOUDY (3-6)/8 12 11 12 13 16 4 1 6 3 17 12 10 117 DAYS WITH CLOUDY (7-8)/8 10 11 13 10 7 3 0 0 1 5 9 9 78 DAYS WITH VISIBILITY =< 2 KM 6 8 0 1 0 0 0 0 0 2 1 5 23 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 895.7 896.4 894.0 892.2 894.1 892.3 891.5 892.5 895.1 897.0 897.6 896.7 894.6 MAX. QFE PRESSURE IN HPA 903.0 904.2 902.7 901.4 902.9 899.6 899.7 902.7 903.1 902.4 906.2 905.9 906.2 DAY-HOUR 31-18 1- 6 27-18 1-18 16- 6 1- 6 10-12 30- 6 25-18 7- 6 3- 6 17- 6 MIN. QFE PRESSURE IN HPA 886.2 884.8 878.2 882.4 888.6 885.2 886.6 885.7 886.3 888.9 890.4 884.8 878.2 DAY-HOUR 6-12 18-15 19- 6 16- 9 23-12 16-15 2-15 19-15 21-12 4-15 10- 3 12- 3 MEAN QNH PRESSURE IN HPA 1020.5 1021.4 1018.7 1016.7 1018.8 1016.8 1015.9 1017.0 1019.9 1022.1 1022.7 1021.6 1019.3 MAX. QNH PRESSURE IN HPA 1028.7 1030.0 1028.3 1026.9 1028.6 1024.9 1025.0 1028.3 1028.8 1028.0 1032.2 1031.9 1032.2 DAY-HOUR 31-18 1- 6 27-18 1-18 16- 6 1- 6 10-12 30- 6 25-18 7- 6 3- 6 17- 6 MIN. QNH PRESSURE IN HPA 1010.0 1008.4 1001.1 1005.8 1012.7 1008.9 1010.4 1009.4 1010.1 1013.0 1014.7 1008.4 1001.1 DAY-HOUR 6-12 18-15 19- 6 16- 9 23-12 16-15 2-15 19-15 21-12 4-15 10- 3 12- 3 MEAN QFF PRESSURE IN HPA 1025.5 ****** 1020.2 1013.9 1014.7 1010.6 1008.3 1010.4 1015.6 1021.1 1023.1 1024.7 ****** MAX. QFF PRESSURE IN HPA 1035.3 ****** 1030.4 1027.1 1026.1 1021.0 1016.2 1024.1 1024.9 1027.2 1032.0 1036.8 ****** DAY-HOUR 31-15 **-** 15- 6 2- 3 16-15 1- 6 18- 6 30- 6 26- 3 22- 3 3- 6 17- 6 MIN. QFF PRESSURE IN HPA 1009.6 ****** 998.7 1000.9 1005.9 1001.3 1002.8 1002.3 1007.9 1007.0 1011.0 1006.7 ****** DAY-HOUR 6-15 **-** 19- 6 16- 6 23-18 16-15 30-18 19-15 6-15 4-15 10- 3 12- 6 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 895.1 896.1 894.0 892.6 894.6 893.2 892.5 893.3 896.0 897.3 897.7 896.7 894.9 MAX. QFE PRESSURE IN HPA 901.0 903.1 901.7 900.9 902.7 899.3 898.5 899.3 902.7 902.0 905.4 904.4 905.4 DAY 10 1 28 2 16 1 18 31 26 7 3 17 MIN. QFE PRESSURE IN HPA 886.2 887.5 878.8 883.0 890.3 887.9 888.9 888.4 890.4 891.8 890.4 884.8 878.8 DAY 7 12 19 16 10 17 3 20 21 5 10 12 MEAN QNH PRESSURE IN HPA 1019.9 1021.0 1018.6 1017.1 1019.3 1017.8 1017.0 1017.9 1020.9 1022.3 1022.7 1021.6 1019.7 MAX. QNH PRESSURE IN HPA 1026.5 1028.8 1027.2 1026.3 1028.3 1024.6 1023.7 1024.6 1028.3 1027.6 1031.3 1030.2 1031.3 DAY 10 1 28 2 16 1 18 31 26 7 3 17 MIN. QNH PRESSURE IN HPA 1010.0 1011.4 1001.8 1006.4 1014.6 1011.9 1013.0 1012.4 1014.7 1016.2 1014.7 1008.4 1001.8 DAY 7 12 19 16 10 17 3 20 21 5 10 12 MEAN QFF PRESSURE IN HPA 1024.7 1026.7 1020.1 1014.2 1015.1 1011.4 1009.2 1010.9 1016.5 1021.3 1023.1 1024.6 1018.1 MAX. QFF PRESSURE IN HPA 1032.9 1038.6 1029.5 1027.1 1024.9 1020.3 1015.8 1020.8 1024.9 1027.2 1031.9 1035.1 1038.6 DAY 16 3 28 2 16 1 18 31 26 22 3 17 MIN. QFF PRESSURE IN HPA 1010.2 1015.2 999.7 1001.4 1008.7 1004.5 1005.5 1005.1 1010.3 1009.3 1011.0 1007.5 999.7 DAY 7 12 19 16 23 17 3 20 21 5 10 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 896.5 897.2 894.9 893.1 894.8 893.4 892.6 893.7 896.6 898.0 898.6 897.8 895.6 MAX. QFE PRESSURE IN HPA 902.0 904.2 902.1 901.0 902.9 899.6 898.8 902.7 903.1 902.4 906.2 905.9 906.2 DAY 15 1 15 1 16 1 18 30 26 7 3 17 MIN. QFE PRESSURE IN HPA 889.0 889.3 878.2 883.2 890.7 887.3 888.6 887.2 890.1 892.2 892.1 884.9 878.2 DAY 7 12 19 16 23 17 3 20 21 4 10 12 MEAN QNH PRESSURE IN HPA 1021.4 1022.2 1019.7 1017.7 1019.6 1018.0 1017.1 1018.3 1021.6 1023.1 1023.8 1022.9 1020.5 MAX. QNH PRESSURE IN HPA 1027.6 1030.0 1027.7 1026.5 1028.6 1024.9 1024.0 1028.3 1028.8 1028.0 1032.2 1031.9 1032.2 DAY 15 1 15 1 16 1 18 30 26 7 3 17 MIN. QNH PRESSURE IN HPA 1013.1 1013.4 1001.1 1006.7 1015.0 1011.2 1012.7 1011.1 1014.3 1016.7 1016.6 1008.6 1001.1 DAY 7 12 19 16 23 17 3 20 21 4 10 12 MEAN QFF PRESSURE IN HPA 1026.2 1027.8 1021.0 1014.4 1015.1 1011.5 1009.2 1011.3 1016.5 1021.6 1023.7 1025.6 1018.7 MAX. QFF PRESSURE IN HPA 1033.7 1039.0 1030.4 1025.8 1025.6 1021.0 1016.2 1024.1 1024.5 1026.9 1032.0 1036.8 1039.0 DAY 16 3 15 2 16 1 18 30 26 23 3 17 MIN. QFF PRESSURE IN HPA 1014.1 1017.4 998.7 1000.9 1007.5 1004.5 1004.7 1003.9 1009.1 1010.8 1013.2 1006.7 998.7 DAY 6 12 19 16 23 17 3 20 21 4 10 12 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 895.8 896.7 894.3 892.1 893.9 892.3 891.4 892.6 895.0 896.9 897.4 896.5 894.6 MAX. QFE PRESSURE IN HPA 901.8 903.3 900.6 899.9 902.3 899.1 897.6 902.1 901.3 901.1 905.3 904.5 905.3 DAY 9 2 15 1 16 11 18 30 26 9 3 20 MIN. QFE PRESSURE IN HPA 888.8 888.1 879.1 882.4 889.6 887.0 888.1 886.9 887.8 890.3 891.7 885.0 879.1 DAY 6 25 19 16 23 17 3 20 21 4 9 12 MEAN QNH PRESSURE IN HPA 1020.7 1021.7 1019.1 1016.6 1018.5 1016.8 1015.8 1017.1 1019.7 1021.8 1022.5 1021.5 1019.3 MAX. QNH PRESSURE IN HPA 1027.3 1029.0 1026.0 1025.2 1027.9 1024.3 1022.7 1027.7 1026.8 1026.6 1031.2 1030.3 1031.2 DAY 9 2 15 1 16 11 18 30 26 9 3 20 MIN. QNH PRESSURE IN HPA 1012.9 1012.1 1002.1 1005.8 1013.8 1010.9 1012.1 1010.8 1011.8 1014.6 1016.1 1008.7 1002.1 DAY 6 25 19 16 23 17 3 20 21 4 9 12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 895.0 895.8 893.3 891.4 893.1 891.2 890.4 891.2 893.8 896.0 896.6 896.0 893.7 MAX. QFE PRESSURE IN HPA 901.8 902.9 899.9 900.3 901.8 897.9 899.7 900.7 899.4 900.5 904.9 903.6 904.9 DAY 9 2 27 1 16 1 10 30 26 9 3 20 MIN. QFE PRESSURE IN HPA 886.2 885.7 880.0 884.7 888.6 886.0 887.1 885.8 886.3 889.1 890.6 885.8 880.0 DAY 6 18 2 26 23 16 2 19 21 4 9 12 MEAN QNH PRESSURE IN HPA 1019.8 1020.7 1017.9 1015.8 1017.6 1015.6 1014.7 1015.6 1018.5 1020.9 1021.6 1020.9 1018.3 MAX. QNH PRESSURE IN HPA 1027.3 1028.6 1025.2 1025.7 1027.3 1023.0 1025.0 1026.1 1024.7 1025.9 1030.8 1029.3 1030.8 DAY 9 2 27 1 16 1 10 30 26 9 3 20 MIN. QNH PRESSURE IN HPA 1010.0 1009.4 1003.1 1008.3 1012.7 1009.8 1011.0 1009.6 1010.1 1013.2 1014.9 1009.6 1003.1 DAY 6 18 2 26 23 16 2 19 21 4 9 12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1980 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 895.6 896.3 893.7 891.6 893.6 891.1 890.3 891.4 894.1 896.6 897.4 896.2 894.0 MAX. QFE PRESSURE IN HPA 902.9 903.2 901.6 900.7 901.9 897.6 896.4 900.9 900.8 900.9 904.9 903.8 904.9 DAY 31 2 27 1 16 11 11 30 25 9 2 20 MIN. QFE PRESSURE IN HPA 886.2 884.8 879.4 884.2 888.9 885.2 886.6 885.7 889.1 888.9 890.6 886.8 879.4 DAY 6 18 2 26 23 16 2 19 21 4 9 11 MEAN QNH PRESSURE IN HPA 1020.5 1021.2 1018.4 1016.0 1018.2 1015.5 1014.5 1015.7 1018.8 1021.6 1022.5 1021.2 1018.7 MAX. QNH PRESSURE IN HPA 1028.6 1028.9 1027.1 1026.1 1027.5 1022.7 1021.3 1026.3 1026.2 1026.3 1030.8 1029.6 1030.8 DAY 31 2 27 1 16 11 11 30 25 9 2 20 MIN. QNH PRESSURE IN HPA 1010.0 1008.4 1002.4 1007.8 1013.0 1008.9 1010.4 1009.4 1013.2 1013.0 1014.9 1010.7 1002.4 DAY 6 18 2 26 23 16 2 19 21 4 9 11 MEAN QFF PRESSURE IN HPA 1025.3 1026.8 1019.7 1013.0 1013.9 1009.1 1006.8 1008.8 1014.3 1020.5 1022.8 1024.1 1017.1 MAX. QFF PRESSURE IN HPA 1035.3 1038.3 1028.3 1025.2 1026.1 1018.3 1013.8 1021.7 1023.1 1026.6 1031.2 1033.4 1038.3 DAY 31 2 27 1 16 11 11 30 25 21 3 16 MIN. QFF PRESSURE IN HPA 1009.6 1010.8 1003.3 1002.8 1006.0 1001.3 1003.1 1002.3 1007.9 1007.0 1012.8 1011.3 1001.3 DAY 6 18 2 26 23 16 29 19 6 4 9 12 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 896.2 896.5 894.0 892.6 894.7 892.5 891.7 892.9 895.4 897.6 897.9 896.8 894.9 MAX. QFE PRESSURE IN HPA 903.0 903.0 902.7 901.4 901.9 898.7 897.6 901.0 903.1 901.9 905.9 904.0 905.9 DAY 31 2 27 1 16 11 11 30 25 9 2 20 MIN. QFE PRESSURE IN HPA 887.5 887.4 879.4 886.0 889.8 886.4 888.0 886.7 889.8 892.0 890.8 886.4 879.4 DAY 6 18 2 26 23 16 30 19 13 4 9 11 MEAN QNH PRESSURE IN HPA 1021.1 1021.4 1018.7 1017.2 1019.4 1017.0 1016.1 1017.5 1020.3 1022.6 1023.0 1021.7 1019.7 MAX. QNH PRESSURE IN HPA 1028.7 1028.7 1028.3 1026.9 1027.5 1023.9 1022.7 1026.5 1028.8 1027.5 1031.9 1029.8 1031.9 DAY 31 2 27 1 16 11 11 30 25 9 2 20 MIN. QNH PRESSURE IN HPA 1011.4 1011.3 1002.4 1009.8 1014.0 1010.2 1012.0 1010.6 1014.0 1016.4 1015.1 1010.2 1002.4 DAY 6 18 2 26 23 16 30 19 13 4 9 11 MEAN QFF PRESSURE IN HPA 1025.9 1027.0 1019.9 1013.9 1014.9 1010.4 1008.1 1010.5 1015.2 1021.1 1023.0 1024.4 1017.9 MAX. QFF PRESSURE IN HPA 1035.2 1038.1 1029.6 1026.6 1026.0 1020.2 1014.8 1022.4 1024.1 1026.7 1031.1 1034.2 1038.1 DAY 31 2 27 1 16 11 11 30 25 21 2 16 MIN. QFF PRESSURE IN HPA 1010.8 1014.3 1003.1 1004.3 1005.9 1003.1 1002.8 1003.5 1009.7 1009.5 1011.4 1010.6 1002.8 DAY 6 18 2 26 23 16 30 19 13 4 9 11 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1981 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.1 4.5 9.3 12.6 17.6 22.3 26.1 25.7 19.8 12.4 8.1 3.1 13.8 MINIMUN AIR TEMPERATURE (C) -1.3 -1.3 2.3 6.1 11.1 14.0 18.3 16.8 11.6 6.0 1.6 -1.4 7.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 7 3 0 0 0 0 10 DAYS WITH MINIMUM TEMP. <=-4 10 10 2 1 0 0 0 0 0 0 0 8 31 DAYS WITH FREEZING MIN.<= 0 21 21 11 4 0 0 0 0 0 1 15 26 99 TEMPERATURE RECORDS LOWEST(C) -6.0 -7.0 -5.0 -7.0 4.0 9.0 14.0 13.0 4.0 -1.0 -3.0 -8.0 -8.0 DAY 15 3 1 3 4 2 29 7 24 31 9 31 MAXIMUM AIR TEMPERATURE (C) 9.7 9.9 15.6 18.4 23.4 27.9 31.9 32.7 29.6 21.2 17.5 10.7 20.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 9 25 30 18 0 0 0 84 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 1 0 0 0 0 0 0 0 1 2 TEMPERATURE RECORDS HIGHEST(C) 14.0 16.0 24.0 29.0 32.0 35.0 39.0 35.0 37.0 26.0 26.0 17.0 39.0 DAY 10 8 21 25 15 16 12 7 14 3 13 17 DIF. BETWEEN (MAX.-MIN.) (C) 11.0 11.2 13.3 12.3 12.3 13.9 13.6 15.9 18.0 15.2 15.9 12.1 13.7 MEAN DAILY TEMP. (MDT) (C) 4.2 4.3 9.0 12.3 17.2 21.0 25.1 24.8 20.6 13.6 9.6 4.7 13.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 3.5 39.5 130.5 116.5 38.0 0.0 0.0 0.0 328.0 HEATING DEG. DAYS(BASE 18 0C) 428.0 383.0 280.0 174.5 51.0 10.0 0.0 0.0 16.5 137.5 253.0 413.0 2146.5 DEWPOINT (MEAN C) -2.8 -2.6 2.6 5.6 9.8 9.3 13.6 10.5 7.3 4.8 -0.5 -1.8 4.6 MIXING RATIO (G/KG) 3.55 3.62 5.34 6.72 8.69 8.53 11.30 9.29 7.53 6.23 4.21 3.83 6.57 VAPOUR PRESSURE (HPA) 5.08 5.17 7.59 9.53 12.31 12.07 15.89 13.13 10.71 8.91 6.03 5.49 9.33 SATURATION DEF. (HPA) 3.45 3.82 4.99 6.42 8.84 16.03 19.27 21.23 14.38 6.39 5.70 2.61 9.43 RELATIVE HUMIDITY (MEAN %) 65 64 67 66 64 47 50 42 49 65 60 74 59 RELATIVE HUMIDITY (MAX. %) 84 83 88 87 86 70 75 69 74 88 82 91 81 RELATIVE HUMIDITY (MIN. %) 46 46 47 48 44 32 33 25 25 36 35 49 39 RELATIVE HUMIDITY (MEAN% 03UTC) 81 80 85 84 84 70 75 69 71 85 77 85 79 RELATIVE HUMIDITY (MEAN% 09UTC) 53 52 53 54 52 38 39 31 30 44 42 58 46 RELATIVE HUMIDITY (MEAN% 15UTC) 62 62 62 62 58 39 43 33 39 59 54 72 54 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 16.8 18.9 39.0 68.5 84.8 10.1 66.4 1.2 15.3 24.5 17.1 9.8 372.4 DAYS WITH PRECIPITATION >=10 0 0 1 3 3 0 2 0 1 0 1 0 11 DAYS WITH PRECIPITATION >= 5 1 1 3 3 5 0 4 0 1 2 2 0 22 DAYS WITH PRECIPITATION >= 1 7 8 9 10 10 3 6 1 1 7 3 7 72 DAYS WITH PRECIPITATION 8 11 12 17 15 4 7 1 4 9 3 9 100 GREATEST DAILY PRECIPITATION 5.0 9.0 11.0 19.0 29.1 4.0 37.1 1.2 15.0 8.0 10.0 3.0 37.1 DAY 2 22 24 2 7 5 20 11 22 9 23 26 DAY WITH THUNDER STORM 0 1 0 2 6 4 3 0 2 1 1 0 20 DAYS WITH SNOW OR SLEET 2 8 2 2 0 0 0 0 0 0 1 1 16 DAYS WITH DUST 0 0 0 1 1 0 0 0 1 0 0 0 3 WIND DIRECTION (PREVAILING) 180 270 270 270 270 270 270 270 270 270 270 135 270 PREVAILING WIND SPEED(KNOTS) 10.6 6.7 7.5 6.5 7.2 7.9 8.1 6.9 6.4 6.3 6.6 9.9 7.2 PREVAILING WIND PERCENT 20.4 15.5 14.0 15.0 18.8 20.6 24.7 7.3 11.3 6.9 7.5 4.0 12.1 CALMS PERCENT OF WIND 59.1 68.5 67.7 62.8 64.5 66.1 53.2 78.0 77.5 88.7 79.2 85.9 72.2 NO. OF WIND OBSERVATION 186 168 186 180 186 180 186 191 240 248 240 248 2439 VECTOR WIND DIRECTION (MEAN) 184 243 235 235 246 263 275 284 261 263 206 186 244 VECTOR WIND MAGNITUDE(KNOTS) 2.3 1.4 1.2 1.0 1.7 2.2 2.5 0.9 1.0 0.7 0.6 0.4 1.1 WIND STEADINESES (MEAN %) 65.7 58.3 50.0 35.7 60.7 88.0 75.8 64.3 71.4 100.0 40.0 36.4 50.0 WIND SPEED (MEAN KNOTS) 3.5 2.4 2.4 2.8 2.8 2.5 3.3 1.4 1.4 0.7 1.5 1.1 2.2 FASTEST WIND DIRECTION 180 180 270 180 150 260 270 270 280 300 140 330 150 FASTEST WIND SPEED (KNOTS) 15 20 18 20 25 15 15 12 12 10 20 15 25 DAY 11 9 3 8 1 13 2 17 15 6 13 10 DAYS WITH SKY CLEAR (0-2)/8 15 7 5 7 9 17 18 28 28 18 15 9 176 DAYS WITH P.CLOUDY (3-6)/8 10 7 13 9 14 10 11 3 1 8 11 13 110 DAYS WITH CLOUDY (7-8)/8 6 14 13 14 8 3 2 0 1 5 4 9 79 DAYS WITH VISIBILITY =< 2 KM 1 2 1 2 1 0 0 0 0 0 1 7 15 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** 278.7 323.7 336.0 290.9 230.4 167.7 138.4 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1981 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 895.7 894.5 892.7 893.3 893.8 893.3 891.5 893.0 897.4 900.1 896.8 897.0 894.9 MAX. QFE PRESSURE IN HPA 906.4 901.0 904.6 901.5 904.2 900.5 897.5 898.2 904.3 908.0 905.3 905.3 908.0 DAY-HOUR 9- 6 28- 6 8- 6 10- 6 21-18 10- 3 29-18 24- 3 27- 6 29- 6 16- 6 1-18 MIN. QFE PRESSURE IN HPA 884.4 884.0 879.7 880.7 882.4 885.3 882.7 887.3 890.5 892.7 887.4 888.2 879.7 DAY-HOUR 3-12 1- 3 13- 3 30-18 1- 3 16-12 6- 6 13-12 12-12 16-12 5-15 18-21 MEAN QNH PRESSURE IN HPA 1020.6 1019.2 1017.2 1017.9 1018.5 1017.9 1015.9 1017.6 1022.4 1025.4 1021.7 1022.0 1019.7 MAX. QNH PRESSURE IN HPA 1032.5 1026.5 1030.5 1027.0 1030.0 1025.9 1022.6 1023.3 1030.1 1034.2 1031.2 1031.2 1034.2 DAY-HOUR 9- 6 28- 6 8- 6 10- 6 21-18 10- 3 29-18 24- 3 27- 6 29- 6 16- 6 1-18 MIN. QNH PRESSURE IN HPA 1008.0 1007.6 1002.8 1003.9 1005.8 1009.0 1006.1 1011.2 1014.8 1017.2 1011.3 1012.2 1002.8 DAY-HOUR 3-12 1- 3 13- 3 30-18 1- 3 16-12 6- 6 13-12 12-12 16-12 5-15 18-21 MEAN QFF PRESSURE IN HPA 1023.7 ****** 1017.9 1016.7 1015.0 1012.4 1008.6 1010.7 1016.8 1023.4 1021.7 1024.4 ****** MAX. QFF PRESSURE IN HPA 1036.8 ****** 1032.0 1028.4 1027.4 1020.7 1015.7 1017.5 1027.2 1034.0 1033.1 1034.3 ****** DAY-HOUR 9- 6 **-** 5- 6 3- 3 21-18 10- 3 30- 3 24- 3 23-18 29- 6 16- 3 12- 6 MIN. QFF PRESSURE IN HPA 1011.6 ****** 1000.3 999.7 1000.2 1002.2 997.9 1003.5 1006.5 1013.1 1007.0 1010.1 ****** DAY-HOUR 3-15 **-** 13- 3 30-18 1- 3 4-15 6- 6 13-15 19-12 16-12 13-12 19- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 897.4 900.0 896.8 897.0 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 902.7 906.3 904.6 903.8 ****** DAY ** ** ** ** ** ** ** ** 27 29 16 2 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 892.9 894.6 890.4 888.7 ****** DAY ** ** ** ** ** ** ** ** 12 16 4 19 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1022.5 1025.3 1021.8 1022.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1028.3 1032.3 1030.5 1029.6 ****** DAY ** ** ** ** ** ** ** ** 27 29 16 2 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1017.4 1019.3 1014.7 1012.8 ****** DAY ** ** ** ** ** ** ** ** 12 16 4 19 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1016.4 1022.6 1020.9 1023.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1025.2 1031.2 1031.4 1031.3 ****** DAY ** ** ** ** ** ** ** ** 24 29 16 2 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1009.0 1014.6 1011.3 1010.1 ****** DAY ** ** ** ** ** ** ** ** 17 13 6 19 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 895.7 894.2 893.0 893.8 894.0 894.2 892.4 894.1 898.0 900.4 897.3 897.3 895.4 MAX. QFE PRESSURE IN HPA 905.5 899.9 903.1 900.9 902.5 900.5 896.9 898.2 903.4 906.5 904.9 903.7 906.5 DAY 9 28 8 10 21 10 24 24 27 29 16 2 MIN. QFE PRESSURE IN HPA 886.7 884.0 879.7 883.4 882.4 887.1 888.6 890.2 892.8 894.4 891.3 889.3 879.7 DAY 3 1 13 30 1 5 2 13 17 15 13 19 MEAN QNH PRESSURE IN HPA 1020.6 1018.9 1017.5 1018.5 1018.7 1018.9 1016.9 1018.7 1023.2 1025.8 1022.3 1022.3 1020.2 MAX. QNH PRESSURE IN HPA 1031.5 1025.2 1028.8 1026.3 1028.1 1025.9 1021.9 1023.3 1029.1 1032.6 1030.8 1029.5 1032.6 DAY 9 28 8 10 21 10 24 24 27 29 16 2 MIN. QNH PRESSURE IN HPA 1010.6 1007.6 1002.8 1006.9 1005.8 1011.0 1012.7 1014.4 1017.3 1019.1 1015.7 1013.4 1002.8 DAY 3 1 13 30 1 5 2 13 17 15 13 19 MEAN QFF PRESSURE IN HPA 1023.5 1021.6 1018.0 1017.3 1014.9 1013.3 1009.4 1011.7 1018.5 1024.7 1023.2 1025.4 1018.5 MAX. QFF PRESSURE IN HPA 1035.9 1030.1 1031.2 1028.4 1024.5 1020.7 1015.7 1017.5 1027.0 1032.7 1033.1 1032.9 1035.9 DAY 9 24 5 3 22 10 30 24 23 29 16 2 MIN. QFF PRESSURE IN HPA 1013.2 1008.8 1000.3 1005.3 1000.2 1004.0 1003.7 1006.1 1010.3 1016.6 1012.6 1011.4 1000.2 DAY 19 1 13 30 1 16 2 14 17 15 13 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1981 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 896.9 895.4 893.8 894.3 894.4 894.1 892.2 894.2 898.5 901.3 898.0 898.2 895.9 MAX. QFE PRESSURE IN HPA 906.4 901.0 904.6 901.5 903.8 900.1 897.2 897.6 904.3 908.0 905.3 905.2 908.0 DAY 9 28 8 10 21 10 30 3 27 29 16 1 MIN. QFE PRESSURE IN HPA 886.9 886.1 881.0 884.4 883.4 887.1 882.7 890.7 893.5 895.3 891.0 891.6 881.0 DAY 3 1 13 30 1 5 6 13 17 16 13 19 MEAN QNH PRESSURE IN HPA 1021.9 1020.2 1018.4 1019.0 1019.1 1018.8 1016.7 1018.9 1023.7 1026.8 1023.1 1023.3 1020.8 MAX. QNH PRESSURE IN HPA 1032.5 1026.5 1030.5 1027.0 1029.6 1025.5 1022.2 1022.7 1030.1 1034.2 1031.2 1031.1 1034.2 DAY 9 28 8 10 21 10 30 3 27 29 16 1 MIN. QNH PRESSURE IN HPA 1010.8 1009.9 1004.2 1008.0 1006.9 1011.0 1006.1 1015.0 1018.1 1020.1 1015.3 1016.0 1004.2 DAY 3 1 13 30 1 5 6 13 17 16 13 19 MEAN QFF PRESSURE IN HPA 1024.8 1022.8 1018.6 1017.6 1015.2 1012.9 1008.8 1011.4 1018.0 1025.0 1023.6 1026.3 1018.7 MAX. QFF PRESSURE IN HPA 1036.8 1031.0 1032.0 1027.6 1027.2 1020.4 1015.1 1015.3 1025.7 1034.0 1033.1 1034.3 1036.8 DAY 9 24 5 3 21 9 30 3 24 29 16 12 MIN. QFF PRESSURE IN HPA 1013.4 1011.2 1001.8 1005.3 1002.2 1003.7 997.9 1007.0 1010.5 1017.4 1012.4 1014.3 997.9 DAY 12 1 13 30 1 16 6 14 17 16 13 19 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 895.8 894.6 892.6 893.4 893.6 893.2 891.5 893.0 897.2 900.2 896.6 896.9 894.9 MAX. QFE PRESSURE IN HPA 904.8 900.8 903.7 900.9 903.7 899.5 896.1 896.7 903.8 906.7 903.3 905.1 906.7 DAY 29 28 8 10 21 9 30 3 27 29 16 1 MIN. QFE PRESSURE IN HPA 885.2 885.7 881.4 882.5 883.1 886.1 886.9 889.3 892.1 893.9 889.4 890.4 881.4 DAY 3 1 13 30 1 16 1 13 12 16 5 18 MEAN QNH PRESSURE IN HPA 1020.6 1019.3 1017.1 1018.0 1018.2 1017.8 1015.9 1017.6 1022.3 1025.5 1021.5 1021.9 1019.7 MAX. QNH PRESSURE IN HPA 1030.7 1026.2 1029.5 1026.3 1029.5 1024.8 1021.0 1021.7 1029.6 1032.8 1029.0 1031.0 1032.8 DAY 29 28 8 10 21 9 30 3 27 29 16 1 MIN. QNH PRESSURE IN HPA 1008.9 1009.4 1004.7 1005.9 1006.6 1009.9 1010.8 1013.4 1016.6 1018.6 1013.6 1014.7 1004.7 DAY 3 1 13 30 1 16 1 13 12 16 5 18 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1015.8 1022.8 1020.9 1023.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1024.2 1031.8 1029.5 1031.9 ****** DAY ** ** ** ** ** ** ** ** 27 29 16 1 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1008.3 1013.8 1008.6 1014.7 ****** DAY ** ** ** ** ** ** ** ** 17 16 13 18 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 894.9 893.6 891.5 892.3 893.0 892.2 890.5 891.7 896.2 899.3 895.6 896.2 893.9 MAX. QFE PRESSURE IN HPA 903.7 899.4 901.9 899.9 903.3 898.8 895.7 896.0 902.5 905.6 902.3 904.7 905.6 DAY 29 28 8 19 21 10 23 3 27 29 15 1 MIN. QFE PRESSURE IN HPA 884.4 885.2 880.2 881.3 883.1 885.3 885.6 887.3 890.5 892.7 888.0 888.6 880.2 DAY 3 1 13 30 1 16 1 13 12 16 5 18 MEAN QNH PRESSURE IN HPA 1019.6 1018.3 1015.9 1016.8 1017.6 1016.7 1014.8 1016.1 1021.1 1024.5 1020.5 1021.1 1018.6 MAX. QNH PRESSURE IN HPA 1029.5 1024.7 1027.5 1025.2 1029.0 1024.0 1020.6 1020.9 1028.1 1031.6 1027.9 1030.6 1031.6 DAY 29 28 8 19 21 10 23 3 27 29 15 1 MIN. QNH PRESSURE IN HPA 1008.0 1008.9 1003.3 1004.5 1006.6 1009.0 1009.3 1011.2 1014.8 1017.2 1012.0 1012.7 1003.3 DAY 3 1 13 30 1 16 1 13 12 16 5 18 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1015.1 1021.8 1019.7 1022.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1025.1 1030.9 1028.0 1030.8 ****** DAY ** ** ** ** ** ** ** ** 23 28 15 1 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1006.5 1013.1 1007.0 1012.4 ****** DAY ** ** ** ** ** ** ** ** 19 16 13 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1981 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 895.3 894.2 892.3 892.6 893.5 892.5 890.6 891.8 896.5 899.5 896.3 896.6 894.3 MAX. QFE PRESSURE IN HPA 904.2 900.0 902.2 900.2 903.5 898.8 895.7 896.0 902.2 905.7 903.4 905.0 905.7 DAY 8 27 8 19 21 10 29 3 27 28 15 1 MIN. QFE PRESSURE IN HPA 885.3 886.7 881.2 880.9 884.0 885.8 885.2 887.5 890.8 892.8 887.4 889.1 880.9 DAY 3 1 13 30 1 4 1 13 12 16 5 18 MEAN QNH PRESSURE IN HPA 1020.1 1018.9 1016.7 1017.1 1018.1 1017.0 1014.9 1016.3 1021.4 1024.8 1021.2 1021.6 1019.0 MAX. QNH PRESSURE IN HPA 1030.0 1025.3 1027.8 1025.6 1029.2 1024.0 1020.6 1020.9 1027.8 1031.7 1029.1 1030.9 1031.7 DAY 8 27 8 19 21 10 29 3 27 28 15 1 MIN. QNH PRESSURE IN HPA 1009.0 1010.6 1004.4 1004.1 1007.6 1009.6 1008.9 1011.4 1015.1 1017.3 1011.3 1013.2 1004.1 DAY 3 1 13 30 1 4 1 13 12 16 5 18 MEAN QFF PRESSURE IN HPA 1023.0 1021.6 1017.1 1015.7 1014.3 1011.3 1007.4 1009.3 1016.8 1023.6 1022.1 1024.6 1017.2 MAX. QFF PRESSURE IN HPA 1034.3 1029.8 1029.2 1025.4 1027.0 1019.2 1014.4 1014.5 1025.9 1032.4 1030.7 1032.5 1034.3 DAY 8 27 8 2 21 9 23 3 23 28 25 1 MIN. QFF PRESSURE IN HPA 1011.6 1008.4 1001.5 1000.0 1002.3 1002.2 1000.6 1003.5 1009.0 1014.7 1007.8 1013.8 1000.0 DAY 3 9 13 30 1 4 1 13 16 16 5 18 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 895.9 894.8 893.1 893.4 894.6 893.7 892.0 893.2 897.7 900.2 896.8 897.1 895.2 MAX. QFE PRESSURE IN HPA 904.9 900.7 902.6 901.0 904.2 899.6 897.5 897.8 903.0 906.8 904.4 905.3 906.8 DAY 8 27 8 19 21 9 29 3 23 28 15 1 MIN. QFE PRESSURE IN HPA 885.9 887.4 881.8 880.7 887.1 887.2 886.3 889.2 892.6 894.0 888.2 889.2 880.7 DAY 3 1 12 30 12 4 1 13 12 16 5 18 MEAN QNH PRESSURE IN HPA 1020.8 1019.6 1017.6 1018.0 1019.4 1018.3 1016.5 1017.8 1022.8 1025.5 1021.8 1022.2 1020.0 MAX. QNH PRESSURE IN HPA 1030.8 1026.1 1028.2 1026.5 1030.0 1024.9 1022.6 1022.9 1028.7 1032.9 1030.2 1031.2 1032.9 DAY 8 27 8 19 21 9 29 3 23 28 15 1 MIN. QNH PRESSURE IN HPA 1009.7 1011.3 1005.1 1003.9 1011.0 1011.1 1010.1 1013.3 1017.1 1018.7 1012.2 1013.3 1003.9 DAY 3 1 12 30 12 4 1 13 12 16 5 18 MEAN QFF PRESSURE IN HPA 1023.6 1022.1 1017.8 1016.4 1015.5 1012.3 1008.6 1010.3 1017.4 1023.8 1022.3 1025.2 1017.9 MAX. QFF PRESSURE IN HPA 1034.9 1030.4 1029.7 1026.1 1027.4 1019.7 1015.5 1015.4 1027.2 1032.3 1031.4 1033.4 1034.9 DAY 8 28 8 2 21 10 23 31 23 28 15 1 MIN. QFF PRESSURE IN HPA 1012.1 1013.5 1003.3 999.7 1004.7 1004.0 1001.2 1005.2 1009.9 1015.0 1007.9 1013.8 999.7 DAY 3 9 12 30 15 4 1 13 12 16 5 18 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 897.6 900.1 896.9 896.8 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 902.4 906.6 904.6 904.5 ****** DAY ** ** ** ** ** ** ** ** 27 28 15 1 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 892.9 894.6 890.0 888.2 ****** DAY ** ** ** ** ** ** ** ** 16 15 5 18 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1022.7 1025.4 1021.9 1021.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1028.0 1032.7 1030.5 1030.3 ****** DAY ** ** ** ** ** ** ** ** 27 28 15 1 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1017.4 1019.3 1014.2 1012.2 ****** DAY ** ** ** ** ** ** ** ** 16 15 5 18 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1016.5 1022.8 1021.2 1023.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1025.5 1031.7 1030.4 1032.5 ****** DAY ** ** ** ** ** ** ** ** 23 28 15 1 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1009.3 1014.8 1009.7 1010.2 ****** DAY ** ** ** ** ** ** ** ** 12 16 5 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1982 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -0.7 -1.8 4.5 15.9 18.5 23.4 25.9 24.6 20.4 13.0 5.2 0.9 12.5 MINIMUN AIR TEMPERATURE (C) -5.2 -5.2 -0.4 8.0 11.9 15.9 17.5 15.8 11.1 6.9 0.9 -4.6 6.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 4 3 0 0 0 0 7 DAYS WITH MINIMUM TEMP. <=-4 16 17 2 0 0 0 0 0 0 0 1 20 56 DAYS WITH FREEZING MIN.<= 0 26 24 22 0 0 0 0 0 0 3 11 27 113 TEMPERATURE RECORDS LOWEST(C) -17.0 -15.8 -4.5 0.8 5.5 12.0 12.2 9.8 5.8 -3.6 -4.6 -12.4 -17.0 DAY 23 8 1 4 11 1 1 31 23 26 18 10 MAXIMUM AIR TEMPERATURE (C) 6.2 4.3 11.6 25.2 26.5 30.5 33.1 31.3 27.3 19.4 10.4 7.2 19.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 4 9 17 25 21 8 0 0 0 84 DAYS WITH MAXIMUM TEMP. <= 0 5 3 0 0 0 0 0 0 0 0 0 1 9 TEMPERATURE RECORDS HIGHEST(C) 14.8 11.6 21.2 32.0 35.2 38.0 37.0 38.2 31.6 26.8 19.6 14.6 38.2 DAY 7 4 24 19 19 8 6 4 8 5 8 23 DIF. BETWEEN (MAX.-MIN.) (C) 11.4 9.5 12.0 17.2 14.6 14.6 15.6 15.5 16.2 12.5 9.5 11.8 13.4 MEAN DAILY TEMP. (MDT) (C) 0.5 -0.5 5.6 16.6 19.2 23.2 25.3 23.6 19.2 13.1 5.6 1.3 12.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.6 16.5 75.1 136.3 80.7 2.5 0.0 0.0 0.0 311.8 HEATING DEG. DAYS(BASE 18 0C) 543.2 496.4 384.6 62.9 19.5 0.0 0.0 0.0 8.7 153.2 371.1 518.4 2558.0 DEWPOINT (MEAN C) -5.4 -6.6 -1.2 4.8 9.0 10.8 10.7 9.3 5.5 5.6 0.6 -4.5 3.2 MIXING RATIO (G/KG) 3.05 2.76 3.98 6.28 8.35 9.32 9.58 8.86 6.62 6.67 4.49 3.15 6.09 VAPOUR PRESSURE (HPA) 4.37 3.95 5.69 8.94 11.87 13.19 13.48 12.50 9.44 9.52 6.44 4.52 8.66 SATURATION DEF. (HPA) 2.38 1.53 3.09 10.15 10.29 17.16 21.40 19.98 15.29 6.36 2.82 2.37 9.40 RELATIVE HUMIDITY (MEAN %) 70 74 73 54 60 49 43 42 43 65 75 71 60 RELATIVE HUMIDITY (MAX. %) 84 86 86 75 78 71 66 65 68 85 90 88 79 RELATIVE HUMIDITY (MIN. %) 53 59 61 33 39 30 27 28 27 46 59 49 43 RELATIVE HUMIDITY (MEAN% 03UTC) 80 79 87 73 76 69 66 67 63 84 88 87 77 RELATIVE HUMIDITY (MEAN% 09UTC) 59 66 *** 35 43 34 32 32 31 50 60 53 *** RELATIVE HUMIDITY (MEAN% 15UTC) 68 *** *** 40 50 39 34 35 38 64 77 72 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 41.1 46.3 28.0 3.5 27.9 16.4 13.0 0.1 12.3 26.2 26.9 9.7 251.4 DAYS WITH PRECIPITATION >=10 2 2 0 0 1 1 1 0 0 0 0 0 7 DAYS WITH PRECIPITATION >= 5 2 4 4 0 2 1 1 0 1 3 2 0 20 DAYS WITH PRECIPITATION >= 1 9 9 6 1 5 3 1 0 4 5 8 3 54 DAYS WITH PRECIPITATION 12 14 12 4 15 5 1 1 7 13 15 6 105 GREATEST DAILY PRECIPITATION 15.0 11.0 7.0 2.1 10.0 11.0 13.0 0.1 8.0 8.0 7.3 4.0 15.0 DAY 29 1 25 20 23 25 7 8 14 6 12 7 DAY WITH THUNDER STORM 0 2 1 0 9 3 1 0 4 2 0 0 22 DAYS WITH SNOW OR SLEET 10 15 7 0 0 0 0 0 0 0 6 4 42 DAYS WITH DUST 0 0 1 0 1 0 1 0 0 0 0 0 3 WIND DIRECTION (PREVAILING) 135 270 270 270 270 270 270 270 270 270 270 135 270 PREVAILING WIND SPEED(KNOTS) 11.1 6.6 8.1 7.5 8.8 8.9 7.2 8.0 7.0 7.7 6.0 11.5 7.8 PREVAILING WIND PERCENT 6.5 5.8 13.8 12.1 15.3 17.7 12.4 20.4 13.9 9.7 8.3 4.3 11.0 CALMS PERCENT OF WIND 81.9 87.1 67.6 72.9 70.6 58.4 69.0 61.3 74.4 81.7 82.2 90.9 74.6 NO. OF WIND OBSERVATION 248 224 247 240 248 209 210 186 180 186 180 186 2544 VECTOR WIND DIRECTION (MEAN) 166 247 246 249 271 271 285 280 261 252 235 153 257 VECTOR WIND MAGNITUDE(KNOTS) 1.0 0.5 1.2 0.8 1.7 1.8 1.4 1.7 1.6 0.9 0.6 0.7 1.0 WIND STEADINESES (MEAN %) 58.8 62.5 50.0 36.4 73.9 52.9 60.9 58.6 88.9 64.3 50.0 77.8 52.6 WIND SPEED (MEAN KNOTS) 1.7 0.8 2.4 2.2 2.3 3.4 2.3 2.9 1.8 1.4 1.2 0.9 1.9 FASTEST WIND DIRECTION 150 150 270 160 270 60 60 260 270 270 150 150 270 FASTEST WIND SPEED (KNOTS) 19 14 23 23 39 23 19 16 16 16 16 16 39 DAY 8 4 3 1 19 14 30 4 16 20 8 4 DAYS WITH SKY CLEAR (0-2)/8 6 7 4 9 10 21 23 20 24 11 7 17 159 DAYS WITH P.CLOUDY (3-6)/8 13 9 14 17 12 7 4 9 6 10 11 7 119 DAYS WITH CLOUDY (7-8)/8 12 12 13 4 9 2 4 2 0 10 12 7 87 DAYS WITH VISIBILITY =< 2 KM 10 8 2 0 0 1 0 0 0 1 1 2 25 DURATION OF SUNSHINE HOURS 126.5 113.1 139.3 239.7 257.3 308.5 317.9 294.7 272.8 168.6 127.8 149.5 2515.7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1982 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 895.3 894.7 894.2 894.4 897.3 893.5 890.7 892.5 897.1 897.6 899.3 898.1 895.4 MAX. QFE PRESSURE IN HPA 906.0 905.0 902.1 906.3 907.7 899.9 897.4 898.1 903.4 908.8 905.5 907.4 908.8 DAY-HOUR 19- 6 11- 6 5-21 4- 6 10- 6 6-21 8- 6 14- 6 20- 6 25- 6 18- 9 10- 6 MIN. QFE PRESSURE IN HPA 884.2 884.2 884.1 884.2 888.9 887.8 881.9 885.4 891.7 889.5 889.6 889.2 881.9 DAY-HOUR 29- 3 1- 3 3- 0 18-15 15-12 1-15 30-12 1- 9 13-12 20-12 6-12 28-12 MEAN QNH PRESSURE IN HPA 1020.1 1019.4 1018.9 1019.1 1022.4 1018.1 1015.0 1017.0 1022.1 1022.7 1024.6 1023.2 1020.2 MAX. QNH PRESSURE IN HPA 1032.0 1030.9 1027.7 1032.3 1033.9 1025.2 1022.5 1023.2 1029.1 1035.1 1031.5 1033.6 1035.1 DAY-HOUR 19- 6 11- 6 5-21 4- 6 10- 6 6-21 8- 6 14- 6 20- 6 25- 6 18- 9 10- 6 MIN. QNH PRESSURE IN HPA 1007.8 1007.8 1007.7 1007.8 1013.0 1011.8 1005.2 1009.1 1016.1 1013.7 1013.8 1013.3 1005.2 DAY-HOUR 29- 3 1- 3 3- 0 18-15 15-12 1-15 30-12 1- 9 13-12 20-12 6-12 28-12 MEAN QFF PRESSURE IN HPA 1023.2 ****** ****** ****** 1017.4 1011.6 1007.4 ****** ****** ****** ****** 1028.3 ****** MAX. QFF PRESSURE IN HPA 1040.3 ****** ****** ****** 1030.7 1019.3 1018.0 ****** ****** ****** ****** 1042.3 ****** DAY-HOUR 21-18 **-** **-** **-** 10- 3 7- 3 8- 3 **-** **-** **-** **-** 10- 3 MIN. QFF PRESSURE IN HPA 1008.9 ****** ****** ****** 1006.7 1004.8 997.4 ****** ****** ****** ****** 1017.2 ****** DAY-HOUR 31-21 **-** **-** **-** 15-12 11-21 30-15 **-** **-** **-** **-** 28- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 894.5 894.5 894.1 894.3 897.4 894.6 ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 900.0 902.7 900.8 903.8 906.4 899.7 ****** ****** ****** ****** ****** ****** ****** DAY 23 11 5 4 10 7 ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 884.7 885.0 884.1 885.9 890.9 890.0 ****** ****** ****** ****** ****** ****** ****** DAY 29 1 3 19 15 15 ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1019.2 1019.2 1018.8 1019.0 1022.5 1019.3 ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1025.3 1028.3 1026.2 1029.6 1032.5 1025.0 ****** ****** ****** ****** ****** ****** ****** DAY 23 11 5 4 10 7 ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1008.3 1008.7 1007.7 1009.7 1015.2 1014.2 ****** ****** ****** ****** ****** ****** ****** DAY 29 1 3 19 15 15 ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1021.7 ****** ****** ****** 1017.3 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1034.4 ****** ****** ****** 1030.2 ****** ****** ****** ****** ****** ****** ****** ****** DAY 23 ** ** ** 10 ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1009.7 ****** ****** ****** 1009.5 ****** ****** ****** ****** ****** ****** ****** ****** DAY 9 ** ** ** 21 ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 895.0 894.6 894.8 895.2 898.0 894.4 891.5 893.6 897.7 897.8 899.6 898.4 895.9 MAX. QFE PRESSURE IN HPA 903.4 901.7 901.1 905.6 906.6 899.6 897.0 898.0 902.9 907.7 904.8 906.9 907.7 DAY 22 20 5 4 10 7 8 11 20 25 18 10 MIN. QFE PRESSURE IN HPA 884.2 884.2 886.1 886.2 890.9 890.0 885.8 885.7 892.8 891.0 891.5 890.3 884.2 DAY 29 1 3 19 15 18 31 1 3 1 8 28 MEAN QNH PRESSURE IN HPA 1019.8 1019.4 1019.6 1020.0 1023.1 1019.1 1015.9 1018.3 1022.7 1022.9 1024.9 1023.5 1020.8 MAX. QNH PRESSURE IN HPA 1029.1 1027.2 1026.6 1031.6 1032.7 1024.9 1022.0 1023.1 1028.6 1033.9 1030.7 1033.0 1033.9 DAY 22 20 5 4 10 7 8 11 20 25 18 10 MIN. QNH PRESSURE IN HPA 1007.8 1007.8 1009.9 1010.0 1015.2 1014.2 1009.6 1009.4 1017.3 1015.3 1015.9 1014.6 1007.8 DAY 29 1 3 19 15 18 31 1 3 1 8 28 MEAN QFF PRESSURE IN HPA 1022.9 ****** ****** ****** 1017.9 1012.7 1008.4 1011.5 1018.4 1022.8 1027.4 1028.5 ****** MAX. QFF PRESSURE IN HPA 1036.4 ****** ****** ****** 1030.7 1019.3 1018.0 1017.1 1026.4 1036.8 1033.3 1042.3 ****** DAY 23 ** ** ** 10 7 8 15 21 25 19 10 MIN. QFF PRESSURE IN HPA 1010.2 ****** ****** ****** 1010.1 1007.5 1000.8 1001.6 1012.3 1010.9 1016.1 1017.2 ****** DAY 9 ** ** ** 15 18 31 1 3 1 8 28 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1982 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 896.9 895.5 895.0 895.4 898.1 894.4 891.8 893.8 898.2 898.5 900.1 899.1 896.4 MAX. QFE PRESSURE IN HPA 906.0 905.0 902.0 906.3 907.7 899.4 897.4 898.1 903.4 908.8 904.9 907.4 908.8 DAY 19 11 5 4 10 7 8 14 20 25 11 10 MIN. QFE PRESSURE IN HPA 885.2 884.8 884.9 887.3 890.9 889.8 885.9 886.4 893.3 891.5 892.2 891.0 884.8 DAY 29 1 19 19 15 18 31 1 3 1 8 28 MEAN QNH PRESSURE IN HPA 1021.9 1020.3 1019.7 1020.3 1023.2 1019.1 1016.3 1018.4 1023.3 1023.7 1025.5 1024.3 1021.3 MAX. QNH PRESSURE IN HPA 1032.0 1030.9 1027.6 1032.3 1033.9 1024.7 1022.5 1023.2 1029.1 1035.1 1030.8 1033.6 1035.1 DAY 19 11 5 4 10 7 8 14 20 25 11 10 MIN. QNH PRESSURE IN HPA 1008.9 1008.4 1008.6 1011.2 1015.2 1014.0 1009.7 1010.2 1017.9 1015.9 1016.7 1015.3 1008.4 DAY 29 1 19 19 15 18 31 1 3 1 8 28 MEAN QFF PRESSURE IN HPA 1025.7 1027.3 ****** 1017.1 1017.9 1012.5 1008.4 1011.6 1018.5 1021.8 1027.8 1029.0 ****** MAX. QFF PRESSURE IN HPA 1039.4 1036.9 ****** 1032.9 1030.3 1018.3 1016.6 1017.4 1025.9 1037.7 1033.7 1042.1 ****** DAY 22 20 ** 4 11 3 8 14 20 25 17 10 MIN. QFF PRESSURE IN HPA 1011.4 1010.4 ****** 1005.8 1009.4 1006.8 1001.8 1002.4 1012.0 1012.1 1015.9 1017.8 ****** DAY 9 1 ** 28 15 18 31 1 3 1 8 28 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 896.1 894.6 893.9 894.3 897.4 893.2 890.7 892.4 897.2 897.2 899.1 897.9 895.3 MAX. QFE PRESSURE IN HPA 904.7 904.8 899.8 905.3 906.4 898.2 896.6 897.0 902.9 907.6 905.5 906.4 907.6 DAY 19 11 16 4 10 7 8 14 20 25 18 10 MIN. QFE PRESSURE IN HPA 886.7 884.3 885.7 886.2 890.1 889.1 884.0 885.4 893.7 890.4 890.2 889.6 884.0 DAY 29 14 19 18 15 28 30 1 13 1 6 28 MEAN QNH PRESSURE IN HPA 1021.0 1019.3 1018.5 1019.0 1022.4 1017.8 1014.9 1016.9 1022.2 1022.3 1024.3 1023.0 1020.1 MAX. QNH PRESSURE IN HPA 1030.6 1030.7 1025.1 1031.2 1032.5 1023.3 1021.6 1022.0 1028.6 1033.8 1031.5 1032.5 1033.8 DAY 19 11 16 4 10 7 8 14 20 25 18 10 MIN. QNH PRESSURE IN HPA 1010.6 1007.9 1009.4 1010.0 1014.3 1013.2 1007.6 1009.1 1018.3 1014.7 1014.4 1013.8 1007.6 DAY 29 14 19 18 15 28 30 1 13 1 6 28 MEAN QFF PRESSURE IN HPA 1023.8 ****** ****** ****** 1017.8 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1036.9 ****** ****** ****** 1028.5 ****** ****** ****** ****** ****** ****** ****** ****** DAY 22 ** ** ** 10 ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1009.9 ****** ****** ****** 1009.2 ****** ****** ****** ****** ****** ****** ****** ****** DAY 9 ** ** ** 20 ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 894.2 893.6 893.7 892.8 896.3 892.1 889.5 891.3 895.8 896.7 898.4 897.1 894.3 MAX. QFE PRESSURE IN HPA 901.8 904.4 901.1 899.2 905.5 897.6 895.0 896.0 900.6 907.0 904.4 904.3 907.0 DAY 20 11 5 3 10 7 8 15 21 25 18 9 MIN. QFE PRESSURE IN HPA 887.2 885.4 884.9 884.3 888.9 888.2 881.9 885.4 891.7 889.5 889.6 889.2 881.9 DAY 9 14 2 18 15 18 30 1 13 20 6 28 MEAN QNH PRESSURE IN HPA 1018.9 1018.3 1018.3 1017.3 1021.2 1016.5 1013.7 1015.7 1020.6 1021.7 1023.6 1022.1 1019.0 MAX. QNH PRESSURE IN HPA 1027.3 1030.2 1026.6 1024.5 1031.5 1022.7 1019.8 1020.9 1026.0 1033.1 1030.2 1030.1 1033.1 DAY 20 11 5 3 10 7 8 15 21 25 18 9 MIN. QNH PRESSURE IN HPA 1011.1 1009.1 1008.6 1007.9 1013.0 1012.2 1005.2 1009.1 1016.1 1013.7 1013.8 1013.3 1005.2 DAY 9 14 2 18 15 18 30 1 13 20 6 28 MEAN QFF PRESSURE IN HPA 1020.5 1023.1 ****** ****** 1015.8 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1032.1 1036.0 ****** ****** 1028.6 ****** ****** ****** ****** ****** ****** ****** ****** DAY 23 11 ** ** 9 ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1009.5 1011.3 ****** ****** 1006.7 ****** ****** ****** ****** ****** ****** ****** ****** DAY 9 4 ** ** 15 ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1982 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 895.3 894.3 893.6 893.6 896.3 892.3 889.7 891.3 896.3 897.4 899.1 897.8 894.7 MAX. QFE PRESSURE IN HPA 904.6 900.6 900.9 903.3 905.3 897.9 897.0 896.0 901.7 907.3 905.0 905.1 907.3 DAY 21 10 5 4 9 6 7 15 20 25 18 9 MIN. QFE PRESSURE IN HPA 887.8 886.4 884.9 884.2 890.6 887.8 882.6 885.9 891.8 889.7 890.4 890.9 882.6 DAY 8 4 24 18 14 1 30 1 13 20 6 28 MEAN QNH PRESSURE IN HPA 1020.1 1019.0 1018.2 1018.2 1021.2 1016.8 1013.9 1015.6 1021.2 1022.5 1024.3 1022.9 1019.5 MAX. QNH PRESSURE IN HPA 1030.5 1026.0 1026.3 1029.0 1031.2 1023.0 1022.0 1020.9 1027.2 1033.5 1030.9 1031.0 1033.5 DAY 21 10 5 4 9 6 7 15 20 25 18 9 MIN. QNH PRESSURE IN HPA 1011.8 1010.2 1008.6 1007.8 1014.9 1011.8 1006.0 1009.7 1016.2 1013.9 1014.7 1015.2 1006.0 DAY 8 4 24 18 14 1 30 1 13 20 6 28 MEAN QFF PRESSURE IN HPA 1022.1 ****** ****** ****** 1017.1 1010.3 1006.4 1009.2 1016.8 1022.9 1026.7 1027.9 ****** MAX. QFF PRESSURE IN HPA 1029.2 ****** ****** ****** 1029.1 1016.9 1016.8 1015.0 1024.1 1036.9 1035.3 1040.2 ****** DAY 12 ** ** ** 9 6 7 15 20 25 18 9 MIN. QFF PRESSURE IN HPA 1011.4 ****** ****** ****** 1010.3 1005.2 997.4 1001.8 1010.5 1011.3 1015.0 1017.6 ****** DAY 9 ** ** ** 14 1 30 4 13 20 6 28 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 895.7 895.6 894.7 894.8 897.9 893.8 890.9 892.8 897.3 898.0 899.6 898.2 895.8 MAX. QFE PRESSURE IN HPA 904.6 903.9 901.3 904.0 906.2 899.4 897.0 897.6 902.9 906.9 904.7 906.9 906.9 DAY 21 11 5 4 9 6 7 15 20 25 18 9 MIN. QFE PRESSURE IN HPA 887.0 888.5 885.2 885.7 890.6 888.8 884.9 888.5 892.4 891.8 890.9 891.3 884.9 DAY 31 14 2 18 14 11 31 1 13 5 6 28 MEAN QNH PRESSURE IN HPA 1020.6 1020.5 1019.5 1019.6 1023.0 1018.4 1015.2 1017.3 1022.4 1023.2 1024.9 1023.3 1020.6 MAX. QNH PRESSURE IN HPA 1030.5 1029.7 1026.8 1029.8 1032.2 1024.7 1022.0 1022.7 1028.6 1033.0 1030.6 1033.0 1033.0 DAY 21 11 5 4 9 6 7 15 20 25 18 9 MIN. QNH PRESSURE IN HPA 1010.9 1012.6 1008.9 1009.4 1014.9 1012.9 1008.6 1012.6 1016.9 1016.2 1015.2 1015.7 1008.6 DAY 31 14 2 18 14 11 31 1 13 5 6 28 MEAN QFF PRESSURE IN HPA 1024.5 1025.7 ****** 1016.3 1017.5 1011.4 1007.3 1010.9 1017.6 1021.4 1027.1 1028.0 ****** MAX. QFF PRESSURE IN HPA 1040.3 1035.9 ****** 1030.0 1030.2 1018.5 1016.0 1016.5 1024.9 1036.3 1034.0 1041.7 ****** DAY 21 11 ** 4 9 6 7 15 20 25 17 9 MIN. QFF PRESSURE IN HPA 1011.4 1015.9 ****** 1004.2 1009.6 1005.1 1000.9 1004.3 1010.8 1011.4 1016.5 1018.2 ****** DAY 8 14 ** 18 14 11 31 3 13 5 7 28 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 894.8 894.5 893.9 894.7 897.6 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 903.9 902.8 902.1 904.1 906.2 ****** ****** ****** ****** ****** ****** ****** ****** DAY 21 10 5 3 9 ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 884.2 885.3 885.3 885.9 890.9 ****** ****** ****** ****** ****** ****** ****** ****** DAY 31 4 2 18 14 ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1019.5 1019.2 1018.6 1019.5 1022.6 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1029.7 1028.5 1027.7 1029.9 1032.2 ****** ****** ****** ****** ****** ****** ****** ****** DAY 21 10 5 3 9 ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1007.8 1009.0 1009.0 1009.7 1015.2 ****** ****** ****** ****** ****** ****** ****** ****** DAY 31 4 2 18 14 ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1023.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1036.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 19 ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1008.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 31 ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1983 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.3 4.3 6.4 14.0 21.5 25.4 29.4 26.8 21.0 12.6 10.0 2.6 14.6 MINIMUN AIR TEMPERATURE (C) -3.0 -2.4 -0.2 7.0 13.9 17.0 19.8 18.6 13.4 4.8 3.6 -2.8 7.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 16 4 0 0 0 0 21 DAYS WITH MINIMUM TEMP. <=-4 14 7 3 0 0 0 0 0 0 0 0 11 35 DAYS WITH FREEZING MIN.<= 0 21 23 18 0 0 0 0 0 0 6 5 21 94 TEMPERATURE RECORDS LOWEST(C) -14.0 -8.2 -5.0 3.2 6.0 11.4 16.0 13.5 7.0 -1.4 -2.8 -11.0 -14.0 DAY 28 1 1 3 1 1 4 28 30 22 27 25 MAXIMUM AIR TEMPERATURE (C) 6.2 11.0 12.5 19.9 27.4 31.4 35.9 33.3 28.8 23.0 18.0 8.9 21.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 5 19 30 25 15 1 0 0 95 DAYS WITH MAXIMUM TEMP. <= 0 3 0 0 0 0 0 0 0 0 0 0 0 3 TEMPERATURE RECORDS HIGHEST(C) 16.6 17.0 20.2 27.7 32.4 37.0 40.2 42.3 35.2 30.6 24.2 19.0 42.3 DAY 2 20 5 18 17 20 23 15 8 2 13 2 DIF. BETWEEN (MAX.-MIN.) (C) 9.2 13.4 12.7 12.9 13.5 14.4 16.1 14.7 15.4 18.2 14.4 11.7 13.9 MEAN DAILY TEMP. (MDT) (C) 1.6 4.3 6.1 13.5 20.6 24.2 27.8 25.9 21.1 13.9 10.8 3.1 14.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 18.2 98.0 211.9 153.6 37.7 0.0 0.0 0.0 519.5 HEATING DEG. DAYS(BASE 18 0C) 494.9 382.9 368.3 137.4 4.0 0.0 0.0 0.0 6.7 132.1 216.3 462.3 2204.9 DEWPOINT (MEAN C) -5.5 -3.3 -2.4 4.6 9.9 10.8 12.4 12.3 8.7 1.4 1.7 -3.0 4.0 MIXING RATIO (G/KG) 3.01 3.43 3.65 6.14 8.80 9.40 10.69 10.45 8.23 4.99 4.95 3.68 6.45 VAPOUR PRESSURE (HPA) 4.31 4.91 5.23 8.74 12.46 13.29 15.01 14.72 11.67 7.15 7.09 5.29 9.15 SATURATION DEF. (HPA) 2.97 3.88 4.91 8.10 13.86 20.37 27.89 22.32 14.82 8.75 5.95 2.66 11.37 RELATIVE HUMIDITY (MEAN %) 64 62 59 58 52 44 39 45 50 51 60 70 55 RELATIVE HUMIDITY (MAX. %) 80 86 83 81 75 66 61 67 76 75 82 89 77 RELATIVE HUMIDITY (MIN. %) 48 39 38 39 34 28 25 31 30 26 38 48 35 RELATIVE HUMIDITY (MEAN% 03UTC) 76 85 82 78 72 66 61 66 74 73 77 87 75 RELATIVE HUMIDITY (MEAN% 09UTC) 52 47 45 47 40 34 30 35 35 31 42 57 41 RELATIVE HUMIDITY (MEAN% 15UTC) 63 57 52 51 45 35 31 39 43 42 55 69 49 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 24.8 16.6 18.8 17.7 14.6 0.2 0.0 3.0 4.2 0.7 15.1 27.3 143.0 DAYS WITH PRECIPITATION >=10 1 0 0 0 0 0 0 0 0 0 0 1 2 DAYS WITH PRECIPITATION >= 5 1 2 2 1 1 0 0 0 0 0 1 2 10 DAYS WITH PRECIPITATION >= 1 6 3 4 5 5 0 0 2 1 0 4 6 36 DAYS WITH PRECIPITATION 10 7 8 11 10 2 0 2 2 1 8 9 70 GREATEST DAILY PRECIPITATION 15.0 8.0 6.2 8.8 7.0 0.2 0.0 2.0 4.0 0.7 5.0 10.0 15.0 DAY 25 22 6 5 7 8 ** 7 14 7 16 12 DAY WITH THUNDER STORM 0 0 0 1 2 2 0 2 0 0 0 0 7 DAYS WITH SNOW OR SLEET 7 4 5 0 0 0 0 0 0 0 0 2 18 DAYS WITH DUST 0 0 0 1 0 0 0 0 1 0 1 0 3 WIND DIRECTION (PREVAILING) 135 135 270 225 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 11.0 9.7 6.5 6.1 6.4 7.1 6.7 7.2 7.4 7.6 6.4 5.6 6.8 PREVAILING WIND PERCENT 15.6 6.5 18.3 10.0 17.7 27.8 17.1 25.8 15.4 10.9 7.2 4.8 14.0 CALMS PERCENT OF WIND 54.8 78.6 55.4 73.3 70.4 48.9 61.9 57.1 73.8 81.5 75.8 89.2 68.9 NO. OF WIND OBSERVATION 186 168 186 180 186 180 181 182 195 248 223 186 2301 VECTOR WIND DIRECTION (MEAN) 152 181 218 259 265 268 284 268 267 263 197 211 246 VECTOR WIND MAGNITUDE(KNOTS) 1.9 0.6 1.4 1.0 1.2 2.5 1.6 2.0 1.3 1.0 0.8 0.3 1.0 WIND STEADINESES (MEAN %) 48.7 40.0 42.4 66.7 63.2 73.5 64.0 66.7 72.2 71.4 47.1 42.9 45.5 WIND SPEED (MEAN KNOTS) 3.9 1.5 3.3 1.5 1.9 3.4 2.5 3.0 1.8 1.4 1.7 0.7 2.2 FASTEST WIND DIRECTION 120 140 120 250 240 60 330 270 270 270 260 180 240 FASTEST WIND SPEED (KNOTS) 21 19 16 14 23 16 14 19 14 23 23 16 23 DAY 17 21 1 28 6 12 11 17 10 12 22 30 DAYS WITH SKY CLEAR (0-2)/8 11 14 16 8 5 17 27 21 20 25 11 14 189 DAYS WITH P.CLOUDY (3-6)/8 11 11 7 11 20 13 3 7 7 5 18 9 122 DAYS WITH CLOUDY (7-8)/8 9 3 8 11 6 0 1 3 3 1 1 8 54 DAYS WITH VISIBILITY =< 2 KM 4 3 2 0 0 0 0 0 0 1 0 2 12 DURATION OF SUNSHINE HOURS 144.0 188.3 178.2 169.5 219.0 308.9 328.9 292.6 234.5 255.8 178.2 144.4 2642.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1983 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 896.3 894.8 895.2 894.3 893.4 893.3 890.4 891.6 895.1 898.7 899.0 899.0 895.1 MAX. QFE PRESSURE IN HPA 910.8 903.7 903.8 901.5 900.9 901.4 898.5 898.0 900.7 906.0 913.1 909.0 913.1 DAY-HOUR 8- 6 10- 6 14-18 29-18 16- 3 1- 6 1- 3 17- 6 28- 6 28- 6 26- 6 4- 6 MIN. QFE PRESSURE IN HPA 879.5 883.6 885.1 887.9 887.2 886.4 881.6 884.7 887.5 888.1 890.9 887.0 879.5 DAY-HOUR 24-18 18- 3 5-18 23-15 3-12 21-12 27-12 28-15 8-12 4-12 12-12 12- 3 MEAN QNH PRESSURE IN HPA 1021.2 1019.6 1020.0 1019.0 1018.0 1017.9 1014.7 1016.0 1019.9 1023.9 1024.2 1024.2 1019.9 MAX. QNH PRESSURE IN HPA 1037.3 1029.5 1029.6 1027.0 1026.3 1026.9 1023.7 1023.1 1026.1 1032.0 1039.9 1035.3 1039.9 DAY-HOUR 8- 6 10- 6 14-18 29-18 16- 3 1- 6 1- 3 17- 6 28- 6 28- 6 26- 6 4- 6 MIN. QNH PRESSURE IN HPA 1002.6 1007.1 1008.8 1011.9 1011.1 1010.2 1004.9 1008.3 1011.4 1012.1 1015.2 1010.9 1002.6 DAY-HOUR 24-18 18- 3 5-18 23-15 3-12 21-12 27-12 28-15 8-12 4-12 12-12 12- 3 MEAN QFF PRESSURE IN HPA 1025.6 ****** 1022.1 1017.4 1012.9 1011.1 ****** ****** 1015.0 1021.8 1023.3 1028.2 ****** MAX. QFF PRESSURE IN HPA 1044.4 ****** 1031.2 1025.5 1021.4 1022.2 ****** ****** 1023.2 1030.6 1042.4 1037.6 ****** DAY-HOUR 8- 6 **-** 14-18 29- 6 31-18 1- 3 **-** **-** 28- 6 28- 6 26- 6 23- 6 MIN. QFF PRESSURE IN HPA 1001.6 ****** 1006.3 1007.9 1006.8 1003.7 ****** ****** 1006.6 1006.2 1012.5 1009.5 ****** DAY-HOUR 24-18 **-** 5-18 23-15 4-18 21-15 **-** **-** 8-15 4-12 12- 9 12- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 898.8 898.3 ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 904.7 909.2 ****** ****** DAY ** ** ** ** ** ** ** ** ** 29 5 ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 892.0 891.7 ****** ****** DAY ** ** ** ** ** ** ** ** ** 5 13 ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.0 1023.4 ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1030.6 1035.6 ****** ****** DAY ** ** ** ** ** ** ** ** ** 29 5 ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1016.4 1016.1 ****** ****** DAY ** ** ** ** ** ** ** ** ** 5 13 ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.3 1021.8 ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1028.1 1037.3 ****** ****** DAY ** ** ** ** ** ** ** ** ** 29 5 ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1010.0 1013.0 ****** ****** DAY ** ** ** ** ** ** ** ** ** 5 13 ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 896.1 895.0 895.5 894.7 894.0 894.4 891.5 892.7 895.9 899.3 899.5 899.2 895.7 MAX. QFE PRESSURE IN HPA 909.7 902.4 902.4 900.1 900.9 900.7 898.5 897.3 900.0 905.1 912.8 908.3 912.8 DAY 8 10 15 29 16 1 1 18 28 29 26 4 MIN. QFE PRESSURE IN HPA 885.1 883.6 887.6 890.5 888.9 889.8 884.5 889.5 891.4 892.9 892.3 887.0 883.6 DAY 25 18 6 3 4 22 27 4 8 4 12 12 MEAN QNH PRESSURE IN HPA 1021.1 1019.8 1020.4 1019.5 1018.7 1019.1 1015.8 1017.2 1020.8 1024.5 1024.8 1024.5 1020.5 MAX. QNH PRESSURE IN HPA 1036.1 1028.0 1028.0 1025.5 1026.3 1026.1 1023.7 1022.3 1025.3 1031.0 1039.6 1034.6 1039.6 DAY 8 10 15 29 16 1 1 18 28 29 26 4 MIN. QNH PRESSURE IN HPA 1008.8 1007.1 1011.6 1014.8 1013.0 1014.0 1008.1 1013.7 1015.8 1017.4 1016.8 1010.9 1007.1 DAY 25 18 6 3 4 22 27 4 8 4 12 12 MEAN QFF PRESSURE IN HPA 1025.3 1023.0 1022.4 1017.8 1013.5 1012.1 1007.3 1009.6 1015.8 1023.5 1025.0 1028.2 1018.6 MAX. QFF PRESSURE IN HPA 1043.6 1033.6 1030.9 1024.4 1021.3 1022.2 1017.0 1015.8 1022.9 1030.3 1042.0 1037.0 1043.6 DAY 8 23 19 30 16 1 1 18 28 29 26 23 MIN. QFF PRESSURE IN HPA 1009.2 1007.0 1010.7 1011.9 1008.8 1005.8 998.3 1004.9 1009.3 1012.6 1014.1 1009.5 998.3 DAY 24 18 6 24 5 21 27 4 8 5 13 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1983 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 897.1 895.9 896.4 895.2 894.1 894.3 891.6 892.9 896.3 900.2 900.4 900.1 896.2 MAX. QFE PRESSURE IN HPA 910.8 903.7 903.5 901.2 900.5 901.4 898.5 898.0 900.7 906.0 913.1 909.0 913.1 DAY 8 10 14 29 16 1 1 17 28 28 26 4 MIN. QFE PRESSURE IN HPA 885.8 884.3 888.7 891.3 889.0 889.3 883.6 889.3 890.9 892.7 892.7 887.4 883.6 DAY 24 18 6 25 4 22 27 28 8 4 13 12 MEAN QNH PRESSURE IN HPA 1022.1 1020.8 1021.3 1020.0 1018.7 1019.1 1016.0 1017.5 1021.2 1025.5 1025.8 1025.5 1021.1 MAX. QNH PRESSURE IN HPA 1037.3 1029.5 1029.2 1026.7 1025.9 1026.9 1023.7 1023.1 1026.1 1032.0 1039.9 1035.3 1039.9 DAY 8 10 14 29 16 1 1 17 28 28 26 4 MIN. QNH PRESSURE IN HPA 1009.6 1007.9 1012.8 1015.7 1013.1 1013.4 1007.1 1013.4 1015.2 1017.2 1017.2 1011.3 1007.1 DAY 24 18 6 25 4 22 27 28 8 4 13 12 MEAN QFF PRESSURE IN HPA 1026.0 1023.7 1022.9 1017.8 1013.0 1011.8 1007.6 1010.0 1015.7 1023.8 1025.5 1029.1 1018.9 MAX. QFF PRESSURE IN HPA 1044.4 1034.5 1030.6 1025.5 1019.9 1022.1 1016.7 1015.4 1023.2 1030.6 1042.4 1037.6 1044.4 DAY 8 23 14 29 16 1 1 18 28 28 26 23 MIN. QFF PRESSURE IN HPA 1008.3 1008.2 1011.9 1012.0 1008.1 1005.3 1003.3 1004.7 1007.6 1012.4 1013.3 1010.1 1003.3 DAY 24 18 5 25 4 21 23 15 8 4 13 12 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 896.3 894.9 895.4 894.2 893.2 893.2 890.3 891.6 894.9 898.6 898.9 898.8 895.0 MAX. QFE PRESSURE IN HPA 909.2 903.0 902.5 901.1 898.6 900.7 897.0 897.5 899.6 904.6 911.0 907.6 911.0 DAY 8 10 14 29 16 1 1 17 28 28 26 4 MIN. QFE PRESSURE IN HPA 883.6 884.5 888.2 890.0 888.2 887.6 882.5 887.0 889.4 890.2 891.5 887.1 882.5 DAY 24 18 5 3 4 21 27 28 8 4 12 12 MEAN QNH PRESSURE IN HPA 1021.2 1019.6 1020.3 1018.9 1017.8 1017.7 1014.5 1016.0 1019.7 1023.8 1024.2 1024.0 1019.8 MAX. QNH PRESSURE IN HPA 1035.6 1028.7 1028.1 1026.6 1023.8 1026.1 1022.0 1022.6 1024.9 1030.5 1037.6 1033.8 1037.6 DAY 8 10 14 29 16 1 1 17 28 28 26 4 MIN. QNH PRESSURE IN HPA 1007.1 1008.1 1012.2 1014.2 1012.2 1011.6 1005.9 1010.9 1013.6 1014.4 1015.9 1011.0 1005.9 DAY 24 18 5 3 4 21 27 28 8 4 12 12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.8 1021.4 ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1027.6 1036.7 ****** ****** DAY ** ** ** ** ** ** ** ** ** 25 5 ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1008.6 1012.5 ****** ****** DAY ** ** ** ** ** ** ** ** ** 4 12 ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 895.5 893.7 894.2 893.3 892.5 892.2 889.2 890.2 893.6 897.4 898.0 898.0 894.0 MAX. QFE PRESSURE IN HPA 907.8 901.7 900.7 900.3 898.3 898.7 895.6 896.4 898.3 903.2 908.2 905.6 908.2 DAY 8 10 14 29 15 1 1 17 28 28 26 4 MIN. QFE PRESSURE IN HPA 880.8 885.1 886.2 888.7 887.2 886.4 881.6 885.1 887.5 888.1 890.9 888.1 880.8 DAY 24 18 5 23 3 21 27 28 8 4 12 12 MEAN QNH PRESSURE IN HPA 1020.4 1018.4 1018.9 1017.8 1017.0 1016.7 1013.3 1014.4 1018.2 1022.4 1023.1 1023.1 1018.6 MAX. QNH PRESSURE IN HPA 1034.0 1027.2 1026.1 1025.7 1023.5 1023.9 1020.5 1021.3 1023.5 1028.9 1034.5 1031.6 1034.5 DAY 8 10 14 29 15 1 1 17 28 28 26 4 MIN. QNH PRESSURE IN HPA 1004.0 1008.8 1010.0 1012.8 1011.1 1010.2 1004.9 1008.8 1011.4 1012.1 1015.2 1012.1 1004.0 DAY 24 18 5 23 3 21 27 28 8 4 12 12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1019.6 1020.7 ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.3 1033.9 ****** ****** DAY ** ** ** ** ** ** ** ** ** 28 5 ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1006.2 1013.1 ****** ****** DAY ** ** ** ** ** ** ** ** ** 4 12 ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1983 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 896.4 894.3 894.6 893.7 892.8 892.4 889.3 890.3 894.0 897.9 898.7 898.7 894.4 MAX. QFE PRESSURE IN HPA 908.5 901.9 901.3 900.3 899.5 898.0 895.5 896.4 899.9 904.3 907.6 907.1 908.5 DAY 7 10 14 29 18 1 1 17 27 28 26 3 MIN. QFE PRESSURE IN HPA 880.8 885.5 885.3 887.9 887.8 887.6 882.4 884.7 888.8 889.1 891.6 889.3 880.8 DAY 24 17 5 23 3 7 27 28 8 4 12 12 MEAN QNH PRESSURE IN HPA 1021.3 1019.1 1019.3 1018.3 1017.4 1016.8 1013.4 1014.5 1018.7 1023.0 1023.9 1023.9 1019.1 MAX. QNH PRESSURE IN HPA 1034.8 1027.5 1026.8 1025.7 1024.8 1023.1 1020.3 1021.3 1025.2 1030.1 1033.8 1033.2 1034.8 DAY 7 10 14 29 18 1 1 17 27 28 26 3 MIN. QNH PRESSURE IN HPA 1004.0 1009.2 1009.0 1011.9 1011.8 1011.6 1005.8 1008.3 1012.9 1013.2 1016.0 1013.4 1004.0 DAY 24 17 5 23 3 7 27 28 8 4 12 12 MEAN QFF PRESSURE IN HPA 1025.6 1022.1 1021.3 1016.5 1012.1 1009.8 1004.8 1006.9 1013.6 1021.9 1024.1 1027.7 1017.2 MAX. QFF PRESSURE IN HPA 1041.7 1031.0 1030.4 1023.8 1019.6 1018.1 1013.0 1014.1 1021.7 1029.2 1037.6 1035.6 1041.7 DAY 8 10 18 29 31 1 1 17 27 28 26 18 MIN. QFF PRESSURE IN HPA 1003.3 1010.7 1006.7 1007.9 1007.3 1003.7 995.9 1001.6 1006.6 1008.8 1015.0 1013.6 995.9 DAY 24 17 5 23 12 21 27 28 8 4 12 12 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 896.6 895.0 895.3 895.0 894.0 893.5 891.2 892.0 895.3 898.9 899.2 899.0 895.4 MAX. QFE PRESSURE IN HPA 909.4 902.5 903.8 901.5 900.5 898.5 896.4 897.6 900.5 905.4 907.3 907.8 909.4 DAY 7 10 14 29 18 1 1 31 27 28 26 3 MIN. QFE PRESSURE IN HPA 879.5 885.7 885.1 890.5 888.2 888.4 886.4 887.0 890.5 890.6 891.9 889.7 879.5 DAY 24 17 5 2 4 7 19 28 8 4 12 27 MEAN QNH PRESSURE IN HPA 1021.5 1019.7 1020.2 1019.8 1018.6 1018.1 1015.5 1016.5 1020.2 1024.1 1024.4 1024.3 1020.2 MAX. QNH PRESSURE IN HPA 1035.8 1028.1 1029.6 1027.0 1025.9 1023.7 1021.3 1022.7 1025.9 1031.3 1033.5 1034.0 1035.8 DAY 7 10 14 29 18 1 1 31 27 28 26 3 MIN. QNH PRESSURE IN HPA 1002.6 1009.4 1008.8 1014.8 1012.2 1012.4 1010.2 1010.9 1014.8 1014.9 1016.3 1013.9 1002.6 DAY 24 17 5 2 4 7 19 28 8 4 12 27 MEAN QFF PRESSURE IN HPA 1025.5 1022.6 1021.7 1017.5 1012.9 1010.9 1006.6 1008.7 1014.6 1022.4 1024.1 1028.0 1017.9 MAX. QFF PRESSURE IN HPA 1041.9 1031.8 1031.2 1025.5 1021.4 1018.3 1013.9 1015.9 1021.8 1029.9 1037.5 1035.8 1041.9 DAY 7 10 14 29 31 1 1 31 27 28 26 18 MIN. QFF PRESSURE IN HPA 1001.6 1009.8 1006.3 1011.9 1006.8 1004.1 1000.3 1003.1 1007.2 1009.8 1013.8 1014.8 1000.3 DAY 24 17 5 17 4 7 19 15 8 4 12 11 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 898.8 898.5 ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 905.3 908.0 ****** ****** DAY ** ** ** ** ** ** ** ** ** 28 4 ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 891.4 891.8 ****** ****** DAY ** ** ** ** ** ** ** ** ** 4 12 ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.0 1023.7 ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1031.2 1034.2 ****** ****** DAY ** ** ** ** ** ** ** ** ** 28 4 ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1015.8 1016.2 ****** ****** DAY ** ** ** ** ** ** ** ** ** 4 12 ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.1 1022.0 ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1028.0 1034.5 ****** ****** DAY ** ** ** ** ** ** ** ** ** 28 4 ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1009.6 1012.6 ****** ****** DAY ** ** ** ** ** ** ** ** ** 4 12 ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.3 -1.3 8.3 14.9 16.5 23.2 28.1 26.9 20.3 12.6 9.0 -1.7 13.3 MINIMUN AIR TEMPERATURE (C) -2.9 -6.3 3.5 7.0 10.3 15.4 18.6 18.9 12.4 4.9 4.3 -5.8 6.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 4 0 0 0 0 0 4 DAYS WITH MINIMUM TEMP. <=-4 12 22 0 0 0 0 0 0 0 0 0 22 56 DAYS WITH FREEZING MIN.<= 0 25 27 4 0 0 0 0 0 0 2 1 29 88 TEMPERATURE RECORDS LOWEST(C) -7.8 -17.0 -2.4 0.2 1.2 12.8 14.5 16.4 6.4 -0.4 -0.2 -16.4 -17.0 DAY 22 7 1 5 2 17 8 8 29 29 30 31 MAXIMUM AIR TEMPERATURE (C) 8.5 3.5 13.9 21.9 22.9 29.9 35.3 34.4 28.4 20.8 15.2 3.4 19.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 4 17 30 26 7 1 0 0 85 DAYS WITH MAXIMUM TEMP. <= 0 1 8 0 0 0 0 0 0 0 0 0 3 12 TEMPERATURE RECORDS HIGHEST(C) 13.0 14.6 20.4 29.6 31.2 35.4 39.4 41.5 34.0 30.4 21.0 13.4 41.5 DAY 6 12 22 23 28 14 26 28 2 19 5 14 DIF. BETWEEN (MAX.-MIN.) (C) 11.4 9.8 10.4 14.9 12.6 14.5 16.7 15.5 16.0 15.9 10.9 9.2 13.2 MEAN DAILY TEMP. (MDT) (C) 2.8 -1.4 8.7 14.5 16.6 22.7 27.0 26.7 20.4 12.8 9.8 -1.2 13.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 5.1 56.9 184.5 175.9 18.4 0.0 0.0 0.0 440.8 HEATING DEG. DAYS(BASE 18 0C) 471.7 563.1 288.1 115.5 66.8 0.0 0.0 0.0 2.4 167.2 246.1 594.9 2515.8 DEWPOINT (MEAN C) -3.3 -5.8 2.7 5.5 8.1 10.0 10.1 12.6 6.7 3.5 3.9 -6.1 4.0 MIXING RATIO (G/KG) 3.44 2.91 5.33 6.52 7.76 8.84 9.10 10.67 7.25 5.62 5.72 2.83 6.33 VAPOUR PRESSURE (HPA) 4.93 4.18 7.60 9.25 11.00 12.51 12.84 15.01 10.31 8.04 8.18 4.07 8.99 SATURATION DEF. (HPA) 2.61 1.71 3.85 8.85 8.99 17.44 26.96 22.11 14.84 7.83 3.87 1.57 10.05 RELATIVE HUMIDITY (MEAN %) 69 74 71 59 62 48 37 46 46 60 73 74 60 RELATIVE HUMIDITY (MAX. %) 88 89 89 85 84 70 59 68 71 84 92 87 81 RELATIVE HUMIDITY (MIN. %) 48 56 54 38 42 31 22 28 25 34 50 57 40 RELATIVE HUMIDITY (MEAN% 03UTC) 85 88 88 83 81 65 59 66 69 81 87 85 78 RELATIVE HUMIDITY (MEAN% 09UTC) 55 62 63 47 48 36 25 33 31 40 56 62 47 RELATIVE HUMIDITY (MEAN% 15UTC) 69 70 64 51 54 37 26 38 36 56 69 73 54 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 16.8 20.3 43.1 48.0 36.0 1.7 2.0 0.0 2.6 24.5 47.9 30.5 273.4 DAYS WITH PRECIPITATION >=10 0 0 1 2 2 0 0 0 0 1 2 0 8 DAYS WITH PRECIPITATION >= 5 2 0 3 4 3 0 0 0 0 2 3 2 19 DAYS WITH PRECIPITATION >= 1 4 6 9 6 4 0 1 0 1 3 9 8 51 DAYS WITH PRECIPITATION 8 17 16 8 8 5 1 0 2 4 13 12 94 GREATEST DAILY PRECIPITATION 7.0 4.6 15.0 19.0 13.2 0.8 2.0 0.0 2.0 13.6 16.1 8.3 19.0 DAY 9 5 23 4 2 7 28 ** 18 7 21 4 DAY WITH THUNDER STORM 0 0 0 1 4 0 1 0 1 0 0 0 7 DAYS WITH SNOW OR SLEET 6 16 2 0 1 0 0 0 0 0 1 10 36 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 315 270 270 270 225 270 270 PREVAILING WIND SPEED(KNOTS) 5.0 6.0 6.1 6.8 7.0 6.3 5.4 6.7 5.3 6.4 5.3 6.3 6.3 PREVAILING WIND PERCENT 5.4 13.2 15.1 13.8 16.8 19.4 14.4 25.5 15.4 9.7 5.2 3.4 12.8 CALMS PERCENT OF WIND 86.6 78.6 66.7 68.3 63.5 56.3 60.9 53.9 76.0 79.3 84.8 91.1 72.1 NO. OF WIND OBSERVATION 186 182 186 189 208 206 202 204 208 217 210 203 2401 VECTOR WIND DIRECTION (MEAN) 202 255 256 244 272 268 306 265 263 248 210 225 262 VECTOR WIND MAGNITUDE(KNOTS) 0.4 0.7 0.9 1.5 1.1 1.8 1.7 1.4 1.2 0.8 0.6 0.2 0.9 WIND STEADINESES (MEAN %) 44.4 53.8 42.9 71.4 47.8 62.1 68.0 45.2 92.3 66.7 66.7 33.3 50.0 WIND SPEED (MEAN KNOTS) 0.9 1.3 2.1 2.1 2.3 2.9 2.5 3.1 1.3 1.2 0.9 0.6 1.8 FASTEST WIND DIRECTION 140 140 270 180 150 240 250 270 320 260 270 150 270 FASTEST WIND SPEED (KNOTS) 14 16 16 29 29 16 16 35 12 16 19 12 35 DAY 1 8 2 17 25 22 27 11 5 8 13 14 DAYS WITH SKY CLEAR (0-2)/8 15 5 2 10 7 21 26 22 24 22 8 14 176 DAYS WITH P.CLOUDY (3-6)/8 10 11 8 11 12 8 5 9 6 6 13 10 109 DAYS WITH CLOUDY (7-8)/8 6 13 21 9 12 1 0 0 0 3 9 7 81 DAYS WITH VISIBILITY =< 2 KM 3 1 0 0 1 0 0 0 0 0 1 3 9 DURATION OF SUNSHINE HOURS 154.3 127.6 89.6 208.1 207.8 298.0 340.2 301.0 280.3 244.8 125.5 131.0 2508.2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 896.9 900.5 894.3 892.6 893.2 892.7 891.0 890.7 896.4 899.5 898.0 901.1 895.6 MAX. QFE PRESSURE IN HPA 906.2 909.6 902.6 900.5 899.9 898.3 896.5 896.1 901.4 908.3 909.4 909.9 909.9 DAY-HOUR 4-18 18-15 29- 6 14- 6 17- 6 15-18 3-18 30- 6 22- 6 21-18 27- 6 18- 6 MIN. QFE PRESSURE IN HPA 889.7 884.4 883.6 885.2 884.9 884.6 886.9 884.6 889.4 886.7 884.7 889.3 883.6 DAY-HOUR 14-12 8- 3 16- 9 10- 3 29- 9 20-15 15-15 15-12 8-12 18-12 12-12 14-12 MEAN QNH PRESSURE IN HPA 1021.8 1025.9 1019.0 1017.1 1017.8 1017.2 1015.3 1014.9 1021.4 1024.8 1023.1 1026.6 1020.4 MAX. QNH PRESSURE IN HPA 1032.2 1036.0 1028.2 1025.9 1025.2 1023.5 1021.5 1021.0 1026.9 1034.6 1035.8 1036.3 1036.3 DAY-HOUR 4-18 18-15 29- 6 14- 6 17- 6 15-18 3-18 30- 6 22- 6 21-18 27- 6 18- 6 MIN. QNH PRESSURE IN HPA 1013.9 1008.0 1007.1 1008.9 1008.6 1008.2 1010.8 1008.2 1013.6 1010.6 1008.3 1013.4 1007.1 DAY-HOUR 14-12 8- 3 16- 9 10- 3 29- 9 20-15 15-15 15-12 8-12 18-12 12-12 14-12 MEAN QFF PRESSURE IN HPA 1026.0 1031.3 1019.8 1014.5 1014.6 1010.4 1007.0 1006.9 1016.2 1023.1 1022.9 1031.6 1018.7 MAX. QFF PRESSURE IN HPA 1036.1 1043.4 1030.5 1026.9 1022.0 1019.5 1014.1 1014.5 1023.1 1036.8 1037.5 1042.2 1043.4 DAY-HOUR 4-18 18-18 9-18 4-15 12- 3 15-18 3-18 31- 3 30-15 21- 6 30-18 18-18 MIN. QFF PRESSURE IN HPA 1017.3 1011.3 1006.6 1003.7 1002.0 1000.2 1001.9 998.4 1007.2 1004.8 1004.9 1016.4 998.4 DAY-HOUR 9- 3 8-18 12-15 10- 6 28-15 21- 0 29-12 15-12 8-12 18-12 12-12 14-18 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 894.3 892.6 891.2 890.8 896.6 899.4 897.8 900.6 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 898.5 897.1 896.3 894.4 900.6 907.7 906.4 908.8 ****** DAY ** ** ** ** 17 13 4 4 22 22 27 19 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 888.6 884.9 888.2 887.1 891.9 889.2 889.3 892.2 ****** DAY ** ** ** ** 1 21 29 16 8 18 13 7 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1019.0 1017.2 1015.5 1015.1 1021.6 1024.7 1022.9 1026.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1023.7 1022.1 1021.2 1019.1 1026.0 1033.9 1032.5 1035.1 ****** DAY ** ** ** ** 17 13 4 4 22 22 27 19 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1012.7 1008.6 1012.2 1011.0 1016.3 1013.3 1013.4 1016.7 ****** DAY ** ** ** ** 1 21 29 16 8 18 13 7 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1015.5 1010.1 1006.8 1006.4 1015.5 1022.3 1021.9 1030.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1021.2 1018.0 1013.8 1011.1 1020.2 1035.4 1033.5 1039.8 ****** DAY ** ** ** ** 12 16 4 4 22 22 27 19 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1008.9 1000.2 1004.0 1000.4 1010.2 1007.6 1010.4 1019.2 ****** DAY ** ** ** ** 1 21 27 16 9 18 12 15 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 897.1 900.4 894.6 892.9 893.4 893.6 891.9 891.7 897.1 899.8 898.2 901.4 896.0 MAX. QFE PRESSURE IN HPA 904.7 908.4 902.0 900.2 899.2 897.5 895.6 895.7 900.6 907.8 906.7 909.2 909.2 DAY 5 19 29 14 12 13 3 30 22 22 27 19 MIN. QFE PRESSURE IN HPA 891.4 884.4 885.5 885.2 885.7 886.4 888.3 887.8 892.2 888.6 888.9 891.0 884.4 DAY 17 8 15 10 30 21 16 8 8 18 12 14 MEAN QNH PRESSURE IN HPA 1022.1 1025.7 1019.3 1017.5 1018.0 1018.2 1016.3 1016.2 1022.1 1025.1 1023.4 1026.9 1020.9 MAX. QNH PRESSURE IN HPA 1030.6 1034.7 1027.6 1025.6 1024.5 1022.6 1020.5 1020.6 1026.0 1034.0 1032.8 1035.6 1035.6 DAY 5 19 29 14 12 13 3 30 22 22 27 19 MIN. QNH PRESSURE IN HPA 1015.8 1008.0 1009.2 1008.9 1009.4 1010.2 1012.3 1011.8 1016.7 1012.7 1013.0 1015.3 1008.0 DAY 17 8 15 10 30 21 16 8 8 18 12 14 MEAN QFF PRESSURE IN HPA 1025.9 1031.6 1019.9 1015.4 1014.6 1011.5 1008.1 1008.3 1017.5 1024.2 1023.5 1032.5 1019.4 MAX. QFF PRESSURE IN HPA 1035.3 1043.1 1029.3 1024.8 1022.0 1018.8 1012.9 1014.5 1022.4 1036.1 1034.8 1039.9 1043.1 DAY 5 19 10 5 12 16 4 31 30 22 27 18 MIN. QFF PRESSURE IN HPA 1017.3 1012.8 1007.7 1005.0 1002.6 1002.3 1003.9 1003.6 1011.3 1007.3 1011.3 1018.1 1002.3 DAY 9 8 25 10 29 21 16 15 9 18 12 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 898.0 901.5 895.3 893.4 893.6 893.6 892.0 892.0 897.6 900.5 899.1 902.1 896.6 MAX. QFE PRESSURE IN HPA 905.0 909.3 902.6 900.5 899.9 897.4 895.5 896.1 901.4 908.0 909.4 909.9 909.9 DAY 5 19 29 14 17 12 3 30 22 21 27 18 MIN. QFE PRESSURE IN HPA 892.5 885.4 885.0 885.3 885.7 886.8 889.0 888.2 892.2 887.8 887.4 891.5 885.0 DAY 8 8 15 10 28 21 16 15 8 18 12 7 MEAN QNH PRESSURE IN HPA 1023.1 1027.0 1020.1 1018.0 1018.2 1018.3 1016.4 1016.4 1022.6 1025.8 1024.4 1027.7 1021.5 MAX. QNH PRESSURE IN HPA 1030.9 1035.7 1028.2 1025.9 1025.2 1022.5 1020.3 1021.0 1026.9 1034.2 1035.8 1036.3 1036.3 DAY 5 19 29 14 17 12 3 30 22 21 27 18 MIN. QNH PRESSURE IN HPA 1017.0 1009.1 1008.7 1009.0 1009.4 1010.7 1013.1 1012.2 1016.7 1011.8 1011.3 1015.9 1008.7 DAY 8 8 15 10 28 21 16 15 8 18 12 7 MEAN QFF PRESSURE IN HPA 1027.0 1032.6 1020.6 1015.4 1014.4 1011.6 1007.6 1008.1 1017.3 1024.1 1024.4 1032.5 1019.6 MAX. QFF PRESSURE IN HPA 1035.8 1043.3 1029.2 1025.6 1021.9 1018.2 1012.1 1013.8 1021.6 1036.8 1037.2 1041.4 1043.3 DAY 5 19 5 4 12 16 3 31 22 21 27 19 MIN. QFF PRESSURE IN HPA 1018.5 1012.8 1007.6 1003.7 1002.1 1002.2 1004.0 1003.2 1010.9 1005.7 1009.9 1019.4 1002.1 DAY 9 8 25 10 28 21 16 15 8 18 12 7 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 896.9 900.8 894.3 892.5 892.8 892.5 890.7 890.5 896.3 899.3 897.9 901.1 895.5 MAX. QFE PRESSURE IN HPA 905.2 908.3 901.8 899.2 898.8 897.4 894.8 894.7 900.2 907.2 907.1 908.8 908.8 DAY 4 19 4 4 12 12 3 29 22 21 27 18 MIN. QFE PRESSURE IN HPA 890.7 885.3 883.6 886.3 884.9 886.3 887.6 886.5 890.6 887.2 886.0 890.3 883.6 DAY 8 8 16 25 29 21 15 15 8 18 12 14 MEAN QNH PRESSURE IN HPA 1021.9 1026.2 1019.0 1017.0 1017.4 1017.0 1015.0 1014.8 1021.2 1024.6 1023.0 1026.5 1020.3 MAX. QNH PRESSURE IN HPA 1031.1 1034.6 1027.3 1024.5 1024.0 1022.5 1019.6 1019.4 1025.6 1033.3 1033.2 1035.1 1035.1 DAY 4 19 4 4 12 12 3 29 22 21 27 18 MIN. QNH PRESSURE IN HPA 1015.0 1009.0 1007.1 1010.1 1008.6 1010.1 1011.6 1010.3 1014.9 1011.1 1009.8 1014.6 1007.1 DAY 8 8 16 25 29 21 15 15 8 18 12 14 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 895.9 899.9 893.3 891.8 892.3 891.7 889.8 889.2 895.2 898.5 897.2 900.5 894.6 MAX. QFE PRESSURE IN HPA 905.0 908.5 901.0 899.0 898.4 897.2 894.7 893.6 899.8 907.1 906.2 908.8 908.8 DAY 4 18 4 4 17 15 3 30 30 21 30 18 MIN. QFE PRESSURE IN HPA 889.7 884.8 884.3 886.8 884.9 885.1 887.0 884.6 889.4 886.7 884.7 889.3 884.3 DAY 14 8 15 9 29 20 15 15 8 18 12 14 MEAN QNH PRESSURE IN HPA 1020.8 1025.2 1017.9 1016.2 1016.8 1016.1 1014.1 1013.3 1020.0 1023.7 1022.2 1025.9 1019.3 MAX. QNH PRESSURE IN HPA 1030.9 1034.8 1026.5 1024.2 1023.6 1022.2 1019.4 1018.2 1025.1 1033.2 1032.2 1035.1 1035.1 DAY 4 18 4 4 17 15 3 30 30 21 30 18 MIN. QNH PRESSURE IN HPA 1013.9 1008.4 1007.9 1010.7 1008.6 1008.8 1010.9 1008.2 1013.6 1010.6 1008.3 1013.4 1007.9 DAY 14 8 15 9 29 20 15 15 8 18 12 14 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1014.7 1008.9 1005.4 1004.5 1014.3 1021.4 1021.3 1030.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1019.1 1017.1 1011.5 1008.6 1021.2 1034.6 1035.0 1037.2 ****** DAY ** ** ** ** 17 15 3 12 30 21 30 19 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1009.1 1001.2 1001.9 998.4 1007.2 1004.8 1004.9 1020.1 ****** DAY ** ** ** ** 1 20 29 15 8 18 12 7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1984 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 896.4 900.5 893.7 892.3 892.7 891.8 890.2 889.4 895.6 899.2 897.9 901.2 895.1 MAX. QFE PRESSURE IN HPA 905.6 909.6 901.9 899.4 898.3 897.4 895.5 894.0 900.5 907.8 906.9 909.7 909.7 DAY 4 18 4 4 17 15 3 30 30 21 30 18 MIN. QFE PRESSURE IN HPA 890.4 885.7 884.8 887.4 885.2 884.6 886.9 885.2 889.4 889.5 888.2 890.1 884.6 DAY 14 8 12 9 28 20 15 15 8 18 12 14 MEAN QNH PRESSURE IN HPA 1021.4 1025.9 1018.4 1016.7 1017.2 1016.2 1014.4 1013.6 1020.5 1024.5 1023.0 1026.6 1019.9 MAX. QNH PRESSURE IN HPA 1031.6 1036.0 1027.5 1024.7 1023.5 1022.5 1020.3 1018.7 1025.9 1034.0 1033.0 1036.1 1036.1 DAY 4 18 4 4 17 15 3 30 30 21 30 18 MIN. QNH PRESSURE IN HPA 1014.7 1009.4 1008.4 1011.3 1008.9 1008.2 1010.8 1008.9 1013.6 1013.7 1012.2 1014.3 1008.2 DAY 14 8 12 9 28 20 15 15 8 18 12 14 MEAN QFF PRESSURE IN HPA 1025.2 1031.6 1018.8 1014.5 1013.8 1009.4 1006.3 1005.8 1015.8 1023.6 1023.2 1032.2 1018.3 MAX. QFF PRESSURE IN HPA 1034.5 1043.0 1029.8 1026.9 1020.0 1018.3 1013.1 1011.9 1023.1 1035.6 1037.0 1039.0 1043.0 DAY 4 18 9 4 17 15 3 30 30 21 30 19 MIN. QFF PRESSURE IN HPA 1018.1 1012.1 1006.6 1007.6 1002.0 1000.6 1002.3 1000.3 1008.7 1008.6 1010.9 1016.7 1000.3 DAY 8 8 12 16 28 20 15 15 8 18 12 14 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 897.0 900.8 894.7 893.0 894.0 893.0 891.5 891.1 896.7 899.8 898.2 900.6 895.9 MAX. QFE PRESSURE IN HPA 906.2 909.5 902.2 899.0 899.1 898.3 896.5 895.5 901.3 908.3 906.8 909.9 909.9 DAY 4 18 4 4 12 15 3 30 30 21 30 18 MIN. QFE PRESSURE IN HPA 891.3 885.6 885.2 887.7 886.4 884.8 888.0 887.3 891.2 890.2 888.7 890.3 884.8 DAY 14 8 12 9 28 20 15 15 8 17 12 14 MEAN QNH PRESSURE IN HPA 1022.0 1026.2 1019.4 1017.6 1018.6 1017.5 1015.9 1015.4 1021.7 1025.1 1023.3 1026.0 1020.7 MAX. QNH PRESSURE IN HPA 1032.2 1035.9 1027.8 1024.2 1024.3 1023.5 1021.5 1020.3 1026.8 1034.6 1032.9 1036.3 1036.3 DAY 4 18 4 4 12 15 3 30 30 21 30 18 MIN. QNH PRESSURE IN HPA 1015.7 1009.3 1008.9 1011.7 1010.2 1008.4 1012.0 1011.2 1015.6 1014.4 1012.8 1014.6 1008.4 DAY 14 8 12 9 28 20 15 15 8 17 12 14 MEAN QFF PRESSURE IN HPA 1025.9 1031.7 1019.8 1014.9 1014.8 1010.8 1007.1 1007.1 1016.4 1023.4 1023.4 1031.5 1018.9 MAX. QFF PRESSURE IN HPA 1036.1 1043.4 1030.5 1026.8 1021.4 1019.5 1014.1 1013.7 1022.9 1035.9 1037.5 1042.2 1043.4 DAY 4 18 9 4 11 15 3 30 30 21 30 18 MIN. QFF PRESSURE IN HPA 1018.3 1011.3 1008.2 1007.8 1002.9 1000.3 1002.8 1001.7 1009.6 1009.1 1011.1 1016.4 1000.3 DAY 8 8 12 24 28 20 15 15 8 17 12 14 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.2 4.6 4.6 14.9 20.3 26.2 24.5 22.3 20.8 12.2 8.5 2.3 13.5 MINIMUN AIR TEMPERATURE (C) -2.9 -0.7 -0.8 7.6 11.7 17.0 18.0 14.6 11.8 5.4 3.1 -1.4 7.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 0 0 0 0 0 0 1 DAYS WITH MINIMUM TEMP. <=-4 13 7 11 0 0 0 0 0 0 0 1 8 40 DAYS WITH FREEZING MIN.<= 0 23 17 17 0 0 0 0 0 0 1 6 18 82 TEMPERATURE RECORDS LOWEST(C) -14.2 -8.0 -9.4 1.0 7.2 10.0 15.0 10.4 7.4 -1.0 -4.0 -13.6 -14.2 DAY 1 24 5 18 8 12 20 29 25 24 26 8 MAXIMUM AIR TEMPERATURE (C) 6.5 11.4 11.3 23.1 28.0 33.5 30.7 28.8 28.8 19.2 14.6 7.0 20.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 4 11 24 17 14 14 0 0 0 84 DAYS WITH MAXIMUM TEMP. <= 0 0 1 2 0 0 0 0 0 0 0 0 2 5 TEMPERATURE RECORDS HIGHEST(C) 13.0 21.0 25.0 33.8 35.2 41.5 39.0 33.6 33.2 27.2 21.0 19.2 41.5 DAY 12 16 21 24 31 26 5 6 7 20 4 3 DIF. BETWEEN (MAX.-MIN.) (C) 9.4 12.1 12.1 15.5 16.3 16.5 12.7 14.2 17.0 13.8 11.5 8.4 13.3 MEAN DAILY TEMP. (MDT) (C) 1.8 5.4 5.3 15.4 19.9 25.3 24.4 21.7 20.3 12.3 8.9 2.8 13.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 3.9 21.2 128.0 105.0 41.1 15.0 0.0 0.0 0.0 314.2 HEATING DEG. DAYS(BASE 18 0C) 502.0 353.7 394.9 95.9 9.1 0.0 0.0 2.0 4.7 177.2 273.8 470.5 2283.8 DEWPOINT (MEAN C) -3.3 -3.4 -3.3 4.1 5.7 10.5 13.6 6.5 3.6 1.3 1.4 -2.0 2.9 MIXING RATIO (G/KG) 3.49 3.46 3.67 5.93 6.68 9.27 11.32 7.12 6.26 4.98 4.86 3.82 5.91 VAPOUR PRESSURE (HPA) 5.00 4.92 5.25 8.42 9.48 13.08 15.88 10.08 8.87 7.10 6.95 5.44 8.37 SATURATION DEF. (HPA) 1.97 4.29 4.44 10.03 15.96 22.88 16.02 18.05 17.00 7.94 4.71 2.26 10.46 RELATIVE HUMIDITY (MEAN %) 75 61 60 54 43 41 55 41 39 53 65 77 55 RELATIVE HUMIDITY (MAX. %) 89 82 79 79 67 63 76 63 64 78 85 89 76 RELATIVE HUMIDITY (MIN. %) 55 41 40 31 24 25 36 24 21 30 45 62 36 RELATIVE HUMIDITY (MEAN% 03UTC) 85 76 77 74 63 61 73 61 58 73 83 86 73 RELATIVE HUMIDITY (MEAN% 09UTC) 62 50 45 39 28 29 43 29 27 39 53 69 43 RELATIVE HUMIDITY (MEAN% 15UTC) 73 56 55 46 34 32 44 30 29 46 59 76 48 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 26.8 25.2 18.0 16.2 3.9 3.0 0.0 7.3 0.0 14.2 6.8 24.9 146.3 DAYS WITH PRECIPITATION >=10 1 0 0 0 0 0 0 0 0 1 0 1 3 DAYS WITH PRECIPITATION >= 5 1 1 1 0 0 0 0 1 0 1 0 2 7 DAYS WITH PRECIPITATION >= 1 6 9 6 6 1 1 0 1 0 3 2 4 39 DAYS WITH PRECIPITATION 12 13 13 9 4 2 1 3 0 4 5 14 80 GREATEST DAILY PRECIPITATION 14.5 8.5 8.0 4.2 3.0 2.0 0.0 7.0 0.0 12.0 3.3 11.1 14.5 DAY 24 2 23 4 18 18 ** 18 ** 28 27 7 DAY WITH THUNDER STORM 0 0 1 5 3 1 0 2 0 0 0 0 12 DAYS WITH SNOW OR SLEET 6 12 10 0 0 0 0 0 0 0 0 7 35 DAYS WITH DUST 0 0 0 1 0 0 1 1 9 9 1 1 23 WIND DIRECTION (PREVAILING) 135 270 270 270 270 270 270 315 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 8.2 6.3 4.6 7.1 7.1 7.0 15.8 12.5 11.0 12.0 8.2 10.0 10.4 PREVAILING WIND PERCENT 6.0 10.2 19.4 10.5 18.1 16.9 53.7 25.1 29.5 30.6 13.8 14.7 20.6 CALMS PERCENT OF WIND 83.4 55.6 66.4 70.0 68.1 62.6 17.6 28.4 48.3 45.8 74.8 68.2 57.4 NO. OF WIND OBSERVATION 217 196 217 210 210 195 216 215 207 216 210 217 2526 VECTOR WIND DIRECTION (MEAN) 155 193 247 254 265 255 288 311 290 285 292 255 281 VECTOR WIND MAGNITUDE(KNOTS) 0.7 1.4 1.0 0.7 1.5 1.6 10.6 5.1 3.9 4.9 1.8 2.1 2.6 WIND STEADINESES (MEAN %) 58.3 45.2 58.8 36.8 71.4 64.0 88.3 68.0 79.6 81.7 85.7 58.3 65.0 WIND SPEED (MEAN KNOTS) 1.2 3.1 1.7 1.9 2.1 2.5 12.0 7.5 4.9 6.0 2.1 3.6 4.0 FASTEST WIND DIRECTION 150 260 200 270 250 280 290 280 280 280 300 190 190 FASTEST WIND SPEED (KNOTS) 19 39 14 14 16 17 47 29 29 49 19 78 78 DAY 2 6 20 13 17 28 28 24 20 1 10 19 DAYS WITH SKY CLEAR (0-2)/8 8 11 6 8 17 19 21 25 28 19 12 4 178 DAYS WITH P.CLOUDY (3-6)/8 9 8 12 13 13 11 10 5 2 9 11 15 118 DAYS WITH CLOUDY (7-8)/8 14 9 13 9 1 0 0 1 0 3 7 12 69 DAYS WITH VISIBILITY =< 2 KM 4 1 0 0 0 0 0 0 0 0 0 9 14 DURATION OF SUNSHINE HOURS 106.5 143.7 154.9 194.0 299.1 267.9 292.0 333.4 289.1 244.3 171.9 104.7 2601.5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 896.2 890.0 897.9 893.0 894.1 891.3 888.6 890.9 891.8 894.6 895.8 893.3 893.1 MAX. QFE PRESSURE IN HPA 904.3 901.3 910.8 907.4 902.6 897.6 893.3 895.2 901.1 903.1 902.4 902.5 910.8 DAY-HOUR 14-15 24- 6 5-18 17- 6 12- 6 10- 6 1- 6 13- 6 22- 6 31-18 17-15 9- 6 MIN. QFE PRESSURE IN HPA 886.3 877.7 880.0 885.2 887.5 884.9 882.4 885.5 885.3 887.3 890.8 876.4 876.4 DAY-HOUR 2-18 6- 3 24- 9 24-12 4-12 19-15 19-15 8-12 7-12 10-12 7-12 19- 3 MEAN QNH PRESSURE IN HPA 1021.1 1014.2 1023.0 1017.6 1018.8 1015.6 1012.6 1015.2 1016.3 1019.3 1020.7 1017.9 1017.7 MAX. QNH PRESSURE IN HPA 1030.1 1026.8 1037.3 1033.6 1028.2 1022.7 1017.9 1020.0 1026.6 1028.8 1028.0 1028.1 1037.3 DAY-HOUR 14-15 24- 6 5-18 17- 6 12- 6 10- 6 1- 6 13- 6 22- 6 31-18 17-15 9- 6 MIN. QNH PRESSURE IN HPA 1010.1 1000.5 1003.1 1008.9 1011.4 1008.6 1005.8 1009.2 1009.0 1011.2 1015.1 999.1 999.1 DAY-HOUR 2-18 6- 3 24- 9 24-12 4-12 19-15 19-15 8-12 7-12 10-12 7-12 19- 3 MEAN QFF PRESSURE IN HPA 1024.7 1016.1 1025.2 1014.6 1013.7 1007.7 1004.9 1008.8 1010.7 1017.6 1020.7 1020.8 1015.5 MAX. QFF PRESSURE IN HPA 1034.6 1033.5 1043.9 1035.0 1024.4 1016.8 1012.3 1015.2 1022.5 1030.3 1029.7 1034.5 1043.9 DAY-HOUR 25- 6 24- 6 5- 6 17- 3 12- 3 10- 6 29- 6 30- 3 22- 6 31-18 1- 3 8-15 MIN. QFF PRESSURE IN HPA 1011.4 999.0 1001.0 1001.6 1006.3 1000.5 997.7 1001.9 1001.8 1007.5 1012.5 996.9 996.9 DAY-HOUR 2-18 6- 0 24- 6 24-12 4-12 20-12 19-15 8-12 7-12 11- 0 10-12 19- 6 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 895.9 889.8 897.7 893.0 894.2 891.3 888.7 890.8 891.9 894.3 895.7 893.0 893.0 MAX. QFE PRESSURE IN HPA 902.0 899.9 910.1 906.7 901.5 896.9 892.4 894.4 899.4 900.1 902.3 901.2 910.1 DAY 28 24 6 17 13 10 16 25 22 7 1 9 MIN. QFE PRESSURE IN HPA 887.3 878.6 883.9 887.7 889.3 885.7 883.7 886.4 886.3 888.1 891.4 877.0 877.0 DAY 19 6 24 3 1 21 20 8 7 11 8 19 MEAN QNH PRESSURE IN HPA 1020.7 1014.1 1022.8 1017.5 1018.8 1015.7 1012.7 1015.2 1016.3 1019.0 1020.6 1017.6 1017.6 MAX. QNH PRESSURE IN HPA 1027.6 1025.2 1036.6 1032.8 1027.0 1021.9 1016.9 1019.1 1024.7 1025.5 1027.9 1026.7 1036.6 DAY 28 24 6 17 13 10 16 25 22 7 1 9 MIN. QNH PRESSURE IN HPA 1011.2 1001.5 1007.4 1011.7 1013.4 1009.4 1007.2 1010.2 1010.1 1012.1 1015.8 999.8 999.8 DAY 19 6 24 3 1 21 20 8 7 11 8 19 MEAN QFF PRESSURE IN HPA 1023.9 1015.2 1024.6 1014.1 1013.6 1007.4 1004.7 1008.4 1010.2 1016.5 1020.0 1019.6 1014.9 MAX. QFF PRESSURE IN HPA 1032.7 1031.6 1042.1 1034.1 1023.0 1016.2 1009.5 1014.2 1020.7 1023.2 1029.0 1032.9 1042.1 DAY 18 24 6 17 12 10 29 31 22 23 1 9 MIN. QFF PRESSURE IN HPA 1013.8 999.0 1004.9 1005.6 1007.9 1000.9 999.6 1002.7 1003.3 1007.5 1013.5 997.7 997.7 DAY 19 6 24 3 22 21 20 8 7 11 11 19 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 896.1 890.1 898.1 893.5 894.9 892.4 889.4 891.6 892.7 894.8 896.1 893.3 893.6 MAX. QFE PRESSURE IN HPA 902.0 899.8 909.3 906.9 902.5 897.2 893.2 895.2 899.9 900.1 901.9 901.6 909.3 DAY 28 24 5 17 12 10 1 25 22 6 1 9 MIN. QFE PRESSURE IN HPA 888.5 877.7 882.6 888.2 889.3 886.5 884.0 887.4 887.2 888.1 892.2 876.4 876.4 DAY 19 6 24 3 1 21 20 8 7 11 8 19 MEAN QNH PRESSURE IN HPA 1021.0 1014.3 1023.2 1018.1 1019.7 1016.9 1013.6 1016.0 1017.2 1019.6 1021.1 1017.9 1018.2 MAX. QNH PRESSURE IN HPA 1027.6 1025.1 1035.7 1033.0 1028.1 1022.2 1017.8 1020.0 1025.2 1025.5 1027.5 1027.1 1035.7 DAY 28 24 5 17 12 10 1 25 22 6 1 9 MIN. QNH PRESSURE IN HPA 1012.6 1000.5 1006.0 1012.2 1013.4 1010.3 1007.6 1011.3 1011.1 1012.1 1016.7 999.1 999.1 DAY 19 6 24 3 1 21 20 8 7 11 8 19 MEAN QFF PRESSURE IN HPA 1025.0 1016.6 1026.0 1015.7 1014.8 1009.3 1006.0 1009.8 1012.3 1018.4 1021.6 1021.1 1016.4 MAX. QFF PRESSURE IN HPA 1033.2 1032.4 1043.6 1035.0 1024.4 1016.7 1011.6 1015.2 1021.7 1025.8 1029.7 1033.6 1043.6 DAY 25 24 5 17 12 10 29 30 22 31 1 10 MIN. QFF PRESSURE IN HPA 1015.2 999.7 1004.1 1007.1 1008.6 1002.0 999.7 1004.4 1005.5 1008.3 1015.4 997.5 997.5 DAY 19 6 24 3 22 21 20 8 7 11 11 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 897.1 891.0 898.8 893.9 894.9 892.4 889.7 891.9 893.2 895.6 897.2 894.3 894.2 MAX. QFE PRESSURE IN HPA 903.2 901.3 910.5 907.4 902.6 897.6 893.3 895.2 901.1 901.9 902.2 902.5 910.5 DAY 14 24 5 17 12 10 1 13 22 31 18 9 MIN. QFE PRESSURE IN HPA 890.7 879.8 881.1 889.1 889.3 886.6 884.4 887.6 887.4 889.6 893.3 876.7 876.7 DAY 2 6 24 3 1 20 20 8 7 11 8 19 MEAN QNH PRESSURE IN HPA 1022.1 1015.3 1024.0 1018.5 1019.7 1016.9 1013.8 1016.4 1017.8 1020.5 1022.2 1019.0 1018.9 MAX. QNH PRESSURE IN HPA 1028.9 1026.8 1037.0 1033.6 1028.2 1022.7 1017.9 1020.0 1026.6 1027.5 1027.8 1028.1 1037.0 DAY 14 24 5 17 12 10 1 13 22 31 18 9 MIN. QNH PRESSURE IN HPA 1015.0 1002.9 1004.3 1013.2 1013.4 1010.4 1008.0 1011.6 1011.3 1013.8 1017.9 999.4 999.4 DAY 2 6 24 3 1 20 20 8 7 11 8 19 MEAN QFF PRESSURE IN HPA 1026.1 1017.2 1026.3 1015.5 1014.5 1008.7 1006.3 1009.9 1012.4 1018.6 1022.3 1022.1 1016.7 MAX. QFF PRESSURE IN HPA 1034.6 1033.5 1043.9 1034.8 1023.7 1016.8 1012.3 1015.1 1022.5 1027.7 1029.0 1034.2 1043.9 DAY 25 24 5 17 12 10 29 30 22 31 25 10 MIN. QFF PRESSURE IN HPA 1017.6 1002.2 1001.0 1006.8 1007.7 1001.4 1000.1 1003.9 1005.0 1010.9 1016.0 996.9 996.9 DAY 19 6 24 24 22 20 20 8 7 11 10 19 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 896.1 890.0 897.9 892.8 893.9 891.2 888.6 891.0 891.9 894.4 895.8 893.2 893.1 MAX. QFE PRESSURE IN HPA 903.7 899.7 909.8 906.0 902.5 895.6 892.4 894.8 900.1 901.6 901.9 902.0 909.8 DAY 14 24 5 17 12 10 16 18 22 31 17 14 MIN. QFE PRESSURE IN HPA 889.8 879.0 880.0 887.0 887.8 885.8 884.6 886.7 886.3 888.8 891.8 876.9 876.9 DAY 2 6 24 24 1 20 19 8 7 18 7 19 MEAN QNH PRESSURE IN HPA 1021.0 1014.2 1023.0 1017.4 1018.5 1015.6 1012.7 1015.4 1016.3 1019.1 1020.7 1017.8 1017.6 MAX. QNH PRESSURE IN HPA 1029.5 1025.0 1036.2 1032.0 1028.1 1020.5 1016.9 1019.6 1025.5 1027.1 1027.5 1027.6 1036.2 DAY 14 24 5 17 12 10 16 18 22 31 17 14 MIN. QNH PRESSURE IN HPA 1014.0 1002.0 1003.1 1010.9 1011.8 1009.6 1008.2 1010.6 1010.1 1012.9 1016.2 999.7 999.7 DAY 2 6 24 24 1 20 19 8 7 18 7 19 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 895.7 889.2 897.1 892.0 893.0 890.1 887.4 890.0 890.6 893.7 894.9 892.8 892.2 MAX. QFE PRESSURE IN HPA 904.0 898.3 909.0 904.1 901.7 894.6 891.6 894.2 898.6 902.0 901.3 901.8 909.0 DAY 14 24 5 17 12 9 16 30 22 31 17 14 MIN. QFE PRESSURE IN HPA 888.2 880.3 884.1 885.2 887.5 885.0 882.8 885.5 885.3 887.3 890.8 878.9 878.9 DAY 2 26 24 24 4 19 19 8 7 10 7 19 MEAN QNH PRESSURE IN HPA 1020.5 1013.3 1022.1 1016.4 1017.6 1014.4 1011.4 1014.2 1014.9 1018.4 1019.7 1017.3 1016.7 MAX. QNH PRESSURE IN HPA 1029.8 1023.5 1035.3 1029.9 1027.2 1019.3 1016.0 1018.9 1023.8 1027.6 1026.8 1027.3 1035.3 DAY 14 24 5 17 12 9 16 30 22 31 17 14 MIN. QNH PRESSURE IN HPA 1012.2 1003.4 1007.7 1008.9 1011.4 1008.7 1006.2 1009.2 1009.0 1011.2 1015.1 1001.9 1001.9 DAY 2 26 24 24 4 19 19 8 7 10 7 19 MEAN QFF PRESSURE IN HPA 1023.5 1014.4 1023.6 1013.0 1012.4 1006.0 1003.4 1007.5 1008.9 1016.1 1019.0 1019.5 1013.9 MAX. QFF PRESSURE IN HPA 1032.7 1029.0 1041.0 1029.7 1022.9 1013.3 1008.8 1014.0 1018.7 1027.6 1026.9 1033.3 1041.0 DAY 14 24 5 16 12 9 16 30 22 31 17 8 MIN. QFF PRESSURE IN HPA 1014.7 1002.3 1004.5 1001.6 1006.3 1000.5 998.0 1001.9 1001.8 1007.9 1012.5 998.7 998.0 DAY 2 26 20 24 4 20 19 8 7 18 10 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1985 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 896.2 889.8 897.7 892.5 893.4 890.3 887.5 890.1 890.9 894.3 895.3 893.3 892.6 MAX. QFE PRESSURE IN HPA 904.3 898.8 909.9 905.6 901.7 895.2 891.5 894.2 898.8 902.7 902.4 901.9 909.9 DAY 14 24 5 16 12 9 16 30 22 31 17 14 MIN. QFE PRESSURE IN HPA 887.2 879.2 885.2 887.2 888.2 884.9 882.4 885.6 885.8 887.8 890.8 880.3 879.2 DAY 2 26 24 24 4 19 19 5 6 10 26 19 MEAN QNH PRESSURE IN HPA 1021.1 1014.0 1022.8 1017.0 1018.0 1014.6 1011.4 1014.4 1015.2 1019.0 1020.1 1017.9 1017.1 MAX. QNH PRESSURE IN HPA 1030.1 1024.0 1036.3 1031.6 1027.2 1020.0 1015.9 1018.9 1024.0 1028.3 1028.0 1027.5 1036.3 DAY 14 24 5 16 12 9 16 30 22 31 17 14 MIN. QNH PRESSURE IN HPA 1011.1 1002.2 1008.9 1011.1 1012.2 1008.6 1005.8 1009.3 1009.6 1011.8 1015.1 1003.4 1002.2 DAY 2 26 24 24 4 19 19 5 6 10 26 19 MEAN QFF PRESSURE IN HPA 1025.0 1016.4 1025.5 1014.4 1013.0 1007.0 1003.8 1008.3 1010.3 1017.9 1020.6 1021.2 1015.3 MAX. QFF PRESSURE IN HPA 1033.1 1030.5 1043.6 1032.7 1023.0 1014.6 1008.7 1014.5 1019.7 1029.7 1029.2 1034.5 1043.6 DAY 14 24 5 16 12 9 16 30 22 31 17 8 MIN. QFF PRESSURE IN HPA 1013.8 1002.2 1007.9 1006.6 1007.0 1000.6 997.7 1002.0 1003.9 1010.0 1014.7 1001.0 997.7 DAY 2 26 24 24 31 19 19 5 7 10 10 19 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 896.3 890.4 898.2 893.5 894.7 891.3 888.7 891.1 891.8 895.0 895.7 893.5 893.3 MAX. QFE PRESSURE IN HPA 903.1 900.2 910.8 907.2 902.4 897.1 892.7 894.7 899.3 903.1 902.4 901.5 910.8 DAY 14 23 5 16 12 9 16 12 22 31 17 14 MIN. QFE PRESSURE IN HPA 886.3 881.6 885.5 889.4 889.0 885.8 883.2 887.0 886.3 887.6 891.1 881.3 881.3 DAY 2 5 24 3 3 20 19 5 6 10 26 19 MEAN QNH PRESSURE IN HPA 1021.2 1014.7 1023.3 1018.1 1019.4 1015.7 1012.8 1015.4 1016.2 1019.8 1020.5 1018.1 1017.9 MAX. QNH PRESSURE IN HPA 1028.8 1025.6 1037.3 1033.3 1028.0 1022.1 1017.2 1019.4 1024.6 1028.8 1028.0 1027.0 1037.3 DAY 14 23 5 16 12 9 16 12 22 31 17 14 MIN. QNH PRESSURE IN HPA 1010.1 1004.9 1009.2 1013.6 1013.1 1009.6 1006.7 1010.9 1010.1 1011.6 1015.4 1004.5 1004.5 DAY 2 5 24 3 3 20 19 5 6 10 26 19 MEAN QFF PRESSURE IN HPA 1025.0 1016.6 1025.5 1015.1 1014.2 1007.6 1005.2 1009.0 1010.6 1018.1 1020.6 1021.2 1015.7 MAX. QFF PRESSURE IN HPA 1032.5 1031.3 1043.9 1034.7 1023.4 1016.6 1010.7 1014.5 1020.4 1030.3 1028.4 1034.1 1043.9 DAY 14 23 5 16 12 9 16 30 22 31 17 8 MIN. QFF PRESSURE IN HPA 1011.4 1003.0 1006.4 1008.4 1007.9 1001.0 999.1 1003.1 1004.0 1008.4 1014.5 1002.3 999.1 DAY 2 5 24 24 3 20 19 7 6 10 7 19 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.6 3.3 1.9 11.8 18.1 22.2 25.5 23.4 20.3 15.8 6.4 2.1 12.6 MINIMUN AIR TEMPERATURE (C) -5.0 -1.2 -2.4 6.1 11.0 14.5 17.6 15.0 11.8 9.3 1.8 -2.2 6.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 1 0 0 0 0 0 1 DAYS WITH MINIMUM TEMP. <=-4 12 2 11 0 0 0 0 0 0 0 4 9 38 DAYS WITH FREEZING MIN.<= 0 22 22 27 0 0 0 0 0 0 0 13 20 104 TEMPERATURE RECORDS LOWEST(C) -18.4 -7.4 -7.8 1.4 5.6 9.4 11.4 10.8 7.2 1.2 -6.0 -13.6 -18.4 DAY 22 3 17 26 19 11 23 13 11 17 14 12 MAXIMUM AIR TEMPERATURE (C) 7.5 8.8 7.3 17.7 24.9 28.8 32.6 30.2 27.9 21.7 12.2 6.8 18.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 3 11 26 19 7 1 0 0 67 DAYS WITH MAXIMUM TEMP. <= 0 4 0 4 0 0 0 0 0 0 0 0 3 11 TEMPERATURE RECORDS HIGHEST(C) 15.0 19.6 17.0 26.6 30.6 36.3 38.4 36.6 33.6 30.3 26.0 14.5 38.4 DAY 18 27 6 16 26 30 31 1 23 4 4 30 DIF. BETWEEN (MAX.-MIN.) (C) 12.5 10.0 9.7 11.6 13.9 14.3 15.0 15.2 16.1 12.4 10.4 9.0 12.5 MEAN DAILY TEMP. (MDT) (C) 1.3 3.8 2.5 11.9 18.0 21.7 25.1 22.6 19.9 15.5 7.0 2.3 12.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 2.5 35.9 131.4 60.0 10.0 0.2 0.0 0.0 240.1 HEATING DEG. DAYS(BASE 18 0C) 501.7 397.5 481.7 182.6 34.4 0.0 0.0 0.0 6.5 88.7 330.8 486.0 2509.8 DEWPOINT (MEAN C) -5.6 -2.5 -4.5 3.3 6.1 7.6 9.8 6.8 4.9 5.5 -0.2 -3.1 2.3 MIXING RATIO (G/KG) 3.00 3.66 3.21 5.67 6.92 7.69 9.08 7.51 6.62 6.61 4.36 3.59 5.66 VAPOUR PRESSURE (HPA) 4.28 5.22 4.59 8.06 9.79 10.83 12.79 10.61 9.39 9.41 6.22 5.12 8.02 SATURATION DEF. (HPA) 2.74 2.97 2.76 6.38 12.04 17.13 21.35 19.48 15.67 9.30 4.45 2.41 9.72 RELATIVE HUMIDITY (MEAN %) 68 71 68 62 52 45 44 41 43 56 67 72 57 RELATIVE HUMIDITY (MAX. %) 88 89 87 84 79 72 71 67 70 82 86 86 80 RELATIVE HUMIDITY (MIN. %) 44 48 47 42 28 24 23 20 21 35 46 53 36 RELATIVE HUMIDITY (MEAN% 03UTC) 82 87 86 80 72 62 65 61 62 80 85 82 75 RELATIVE HUMIDITY (MEAN% 09UTC) 53 55 56 50 36 31 29 27 29 41 52 60 43 RELATIVE HUMIDITY (MEAN% 15UTC) 65 65 61 52 38 32 30 28 30 50 65 72 49 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 16.6 15.1 21.4 49.2 27.9 34.4 10.7 26.0 7.9 11.1 15.4 55.2 290.9 DAYS WITH PRECIPITATION >=10 0 0 0 1 1 1 0 1 0 1 0 2 7 DAYS WITH PRECIPITATION >= 5 1 1 1 4 1 2 1 1 1 1 1 4 19 DAYS WITH PRECIPITATION >= 1 5 5 7 9 3 5 2 4 1 1 5 8 55 DAYS WITH PRECIPITATION 8 9 13 10 8 6 2 4 2 3 10 12 87 GREATEST DAILY PRECIPITATION 9.0 6.0 6.0 16.2 23.0 16.1 8.7 18.0 7.8 10.2 5.3 15.8 23.0 DAY 21 7 8 18 5 9 21 4 30 12 21 3 DAY WITH THUNDER STORM 0 0 0 1 4 4 0 2 1 0 0 1 13 DAYS WITH SNOW OR SLEET 5 7 12 0 0 0 0 0 0 0 1 8 33 DAYS WITH DUST 0 0 0 2 3 4 10 6 5 1 0 0 31 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 10.5 12.4 13.4 13.5 15.1 16.0 17.1 14.2 14.8 12.9 13.3 13.1 14.3 PREVAILING WIND PERCENT 9.7 22.0 34.6 21.0 35.5 30.0 33.2 22.0 24.3 28.5 15.5 17.1 24.7 CALMS PERCENT OF WIND 77.0 63.9 44.4 48.6 45.6 47.6 34.6 51.7 52.9 54.7 69.6 58.8 53.8 NO. OF WIND OBSERVATION 217 205 234 210 217 210 214 209 210 179 181 187 2473 VECTOR WIND DIRECTION (MEAN) 260 268 293 315 277 290 302 303 296 290 268 258 288 VECTOR WIND MAGNITUDE(KNOTS) 1.4 2.5 4.9 1.3 5.8 5.5 6.3 4.0 4.4 4.3 2.3 1.8 3.6 WIND STEADINESES (MEAN %) 60.9 56.8 71.0 23.2 80.6 80.9 67.0 67.8 74.6 86.0 63.9 36.0 63.2 WIND SPEED (MEAN KNOTS) 2.3 4.4 6.9 5.6 7.2 6.8 9.4 5.9 5.9 5.0 3.6 5.0 5.7 FASTEST WIND DIRECTION 290 180 280 250 270 280 220 290 280 290 290 290 270 FASTEST WIND SPEED (KNOTS) 39 29 35 39 49 39 43 39 35 35 49 39 49 DAY 20 6 1 20 16 20 17 5 7 7 11 3 DAYS WITH SKY CLEAR (0-2)/8 15 6 5 8 11 18 23 24 25 14 6 13 168 DAYS WITH P.CLOUDY (3-6)/8 9 12 13 7 17 11 7 5 5 12 15 10 123 DAYS WITH CLOUDY (7-8)/8 7 10 13 15 3 1 1 2 0 5 9 8 74 DAYS WITH VISIBILITY =< 2 KM 7 0 3 4 0 0 0 0 0 0 3 5 22 DURATION OF SUNSHINE HOURS 172.9 130.5 168.1 173.5 278.7 299.8 310.4 338.0 297.2 227.5 145.9 159.8 2702.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 892.7 891.3 893.7 892.4 890.5 887.4 889.7 891.1 894.0 895.4 895.1 893.5 892.2 MAX. QFE PRESSURE IN HPA 902.1 899.3 902.2 901.1 898.6 894.2 894.7 894.8 898.9 902.9 903.7 906.3 906.3 DAY-HOUR 28- 6 22- 6 3- 6 4-18 18- 6 2-18 3- 6 24- 6 22- 6 15- 6 16- 6 7- 0 MIN. QFE PRESSURE IN HPA 880.2 884.5 886.0 885.3 882.9 881.4 884.7 885.6 889.4 889.8 884.5 881.7 880.2 DAY-HOUR 20- 0 6-18 10- 0 11-12 3-12 17-12 20-12 15-12 6-12 1-12 9- 3 30-12 MEAN QNH PRESSURE IN HPA 1017.3 1015.7 1018.3 1016.9 1014.8 1011.4 1013.9 1015.4 1018.6 1020.2 1019.9 1018.1 1016.7 MAX. QNH PRESSURE IN HPA 1027.7 1024.6 1027.8 1026.6 1023.8 1018.9 1019.4 1019.6 1024.1 1028.6 1029.5 1032.3 1032.3 DAY-HOUR 28- 6 22- 6 3- 6 4-18 18- 6 2-18 3- 6 24- 6 22- 6 15- 6 16- 6 7- 0 MIN. QNH PRESSURE IN HPA 1003.3 1008.1 1009.8 1009.0 1006.3 1004.7 1008.3 1009.3 1013.6 1014.0 1008.1 1005.0 1003.3 DAY-HOUR 20- 0 6-18 10- 0 11-12 3-12 17-12 20-12 15-12 6-12 1-12 9- 3 30-12 MEAN QFF PRESSURE IN HPA 1021.3 1017.9 1021.5 1015.3 1010.2 1005.0 1006.2 1008.7 1013.3 ****** 1022.9 1022.6 ****** MAX. QFF PRESSURE IN HPA 1036.7 1027.1 1033.1 1026.7 1021.9 1013.5 1012.8 1014.2 1020.2 ****** 1033.5 1037.0 ****** DAY-HOUR 28-15 13- 6 3- 6 5- 3 18- 6 2-18 21-18 31-18 30- 6 **-** 16- 6 11- 6 MIN. QFF PRESSURE IN HPA 1004.1 1007.6 1012.4 1005.8 1000.1 997.3 1000.5 1001.7 1007.2 ****** 1004.5 1005.3 ****** DAY-HOUR 20- 0 6-18 10- 0 11- 3 3-12 17-12 26-12 15-12 6-12 **-** 9- 3 30-15 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 892.6 891.1 893.5 892.3 890.4 887.5 889.6 891.0 893.9 ****** 897.6 ****** ****** MAX. QFE PRESSURE IN HPA 900.9 896.7 899.8 901.1 897.5 893.2 892.9 893.0 897.4 ****** 902.9 ****** ****** DAY 29 22 3 5 19 3 2 25 22 ** 16 ** MIN. QFE PRESSURE IN HPA 880.2 885.9 886.0 886.3 883.5 883.5 886.6 887.4 890.3 ****** 890.2 ****** ****** DAY 20 16 10 11 3 13 10 15 26 ** 30 ** MEAN QNH PRESSURE IN HPA 1017.1 1015.4 1018.1 1016.8 1014.7 1011.5 1013.8 1015.4 1018.6 ****** 1022.6 ****** ****** MAX. QNH PRESSURE IN HPA 1026.3 1021.7 1025.1 1026.6 1022.6 1017.8 1017.4 1017.6 1022.5 ****** 1028.6 ****** ****** DAY 29 22 3 5 19 3 2 25 22 ** 16 ** MIN. QNH PRESSURE IN HPA 1003.3 1009.7 1009.8 1010.1 1007.0 1007.0 1010.4 1011.3 1014.6 ****** 1014.4 ****** ****** DAY 20 16 10 11 3 13 10 15 26 ** 30 ** MEAN QFF PRESSURE IN HPA 1020.2 1017.4 1020.8 1014.9 1010.0 1005.0 1005.7 1008.1 1012.7 ****** 1025.1 ****** ****** MAX. QFF PRESSURE IN HPA 1033.0 1024.3 1030.4 1026.3 1020.5 1012.4 1012.0 1012.5 1017.2 ****** 1033.3 ****** ****** DAY 29 14 3 5 19 3 22 8 30 ** 16 ** MIN. QFF PRESSURE IN HPA 1004.1 1009.1 1012.4 1005.9 1000.8 999.5 1002.0 1003.7 1008.2 ****** 1014.2 ****** ****** DAY 20 26 10 11 3 18 10 15 26 ** 30 ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 892.9 891.4 894.1 892.8 890.9 888.2 890.5 891.8 894.7 896.2 894.8 893.3 892.6 MAX. QFE PRESSURE IN HPA 900.9 897.8 901.5 901.1 897.9 893.7 894.6 894.5 898.3 902.1 902.7 905.7 905.7 DAY 29 22 3 5 19 3 3 24 22 15 16 7 MIN. QFE PRESSURE IN HPA 880.5 885.7 886.8 885.5 883.2 884.0 886.7 888.0 890.7 891.4 884.5 883.4 880.5 DAY 20 16 10 11 3 13 20 15 6 5 9 28 MEAN QNH PRESSURE IN HPA 1017.5 1015.8 1018.8 1017.3 1015.3 1012.3 1014.8 1016.2 1019.5 1021.1 1019.6 1017.9 1017.2 MAX. QNH PRESSURE IN HPA 1026.3 1022.9 1027.0 1026.6 1023.0 1018.3 1019.3 1019.2 1023.5 1027.7 1028.3 1031.7 1031.7 DAY 29 22 3 5 19 3 3 24 22 15 16 7 MIN. QNH PRESSURE IN HPA 1003.7 1009.4 1010.7 1009.2 1006.7 1007.6 1010.6 1012.0 1015.0 1015.8 1008.1 1006.9 1003.7 DAY 20 16 10 11 3 13 20 15 6 5 9 28 MEAN QFF PRESSURE IN HPA 1022.2 1018.8 1022.4 1016.0 1010.8 1005.9 1007.2 1009.6 1014.7 1018.7 1021.0 1021.6 1015.7 MAX. QFF PRESSURE IN HPA 1036.2 1025.4 1032.9 1026.7 1021.3 1012.9 1012.7 1013.2 1019.0 1027.0 1032.9 1036.5 1036.5 DAY 29 13 3 5 19 3 22 8 30 15 16 11 MIN. QFF PRESSURE IN HPA 1005.5 1011.2 1013.2 1005.8 1000.2 1000.0 1002.3 1005.0 1009.4 1010.0 1004.5 1005.7 1000.0 DAY 20 7 10 11 3 13 20 15 26 5 9 28 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 893.9 892.4 894.9 893.3 891.4 888.3 890.7 892.1 895.2 896.9 895.7 894.3 893.2 MAX. QFE PRESSURE IN HPA 902.1 899.3 902.2 900.9 898.6 893.6 894.7 894.8 898.9 902.9 903.7 905.8 905.8 DAY 28 22 3 5 18 3 3 24 22 15 16 7 MIN. QFE PRESSURE IN HPA 882.1 886.6 888.3 886.2 883.7 884.2 886.5 888.1 890.9 891.7 886.0 885.6 882.1 DAY 20 16 10 11 3 13 20 15 6 5 9 27 MEAN QNH PRESSURE IN HPA 1018.6 1016.9 1019.7 1017.9 1015.7 1012.3 1015.0 1016.6 1020.0 1021.9 1020.5 1019.0 1017.8 MAX. QNH PRESSURE IN HPA 1027.7 1024.6 1027.8 1026.3 1023.8 1018.2 1019.4 1019.6 1024.1 1028.6 1029.5 1031.8 1031.8 DAY 28 22 3 5 18 3 3 24 22 15 16 7 MIN. QNH PRESSURE IN HPA 1005.4 1010.4 1012.3 1010.0 1007.2 1007.8 1010.3 1012.1 1015.2 1016.1 1009.8 1009.3 1005.4 DAY 20 16 10 11 3 13 20 15 6 5 9 27 MEAN QFF PRESSURE IN HPA 1022.8 1019.5 1022.8 1016.3 1011.1 1005.9 1007.3 1009.8 1014.4 ****** 1026.8 1024.1 ****** MAX. QFF PRESSURE IN HPA 1035.2 1027.1 1033.1 1026.0 1021.9 1013.1 1012.5 1013.6 1020.2 ****** 1033.5 1037.0 ****** DAY 28 13 3 5 18 3 22 31 30 ** 16 11 MIN. QFF PRESSURE IN HPA 1007.4 1011.8 1015.0 1006.7 1001.2 1000.1 1001.8 1004.8 1009.4 ****** 1013.8 1009.9 ****** DAY 20 26 25 11 3 13 20 15 6 ** 30 1 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 892.5 891.4 893.7 892.4 890.4 887.2 889.7 891.0 893.8 895.3 894.3 892.9 892.1 MAX. QFE PRESSURE IN HPA 901.5 898.2 899.4 898.6 898.2 891.9 893.2 893.9 897.5 901.0 902.8 902.4 902.8 DAY 28 22 28 5 18 3 3 24 22 15 16 7 MIN. QFE PRESSURE IN HPA 881.2 886.6 887.9 886.3 883.8 882.9 885.8 887.3 890.1 890.6 885.3 883.8 881.2 DAY 20 6 25 11 3 17 20 15 6 6 9 30 MEAN QNH PRESSURE IN HPA 1017.0 1015.7 1018.4 1016.8 1014.7 1011.2 1013.9 1015.3 1018.5 1020.2 1019.0 1017.5 1016.5 MAX. QNH PRESSURE IN HPA 1027.0 1023.3 1024.7 1023.8 1023.3 1016.3 1017.8 1018.6 1022.6 1026.5 1028.5 1028.0 1028.5 DAY 28 22 28 5 18 3 3 24 22 15 16 7 MIN. QNH PRESSURE IN HPA 1004.4 1010.4 1011.9 1010.1 1007.3 1006.3 1009.6 1011.2 1014.3 1014.9 1009.0 1007.3 1004.4 DAY 20 6 25 11 3 17 20 15 6 6 9 30 MEAN QFF PRESSURE IN HPA ****** ****** 1021.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** 1028.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 3 ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** 1014.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 8 ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 892.0 890.5 892.8 891.5 889.6 886.3 888.6 890.1 892.8 894.5 893.8 892.4 891.2 MAX. QFE PRESSURE IN HPA 901.1 896.4 898.5 897.3 897.8 893.5 891.7 893.6 896.3 900.6 902.4 902.5 902.5 DAY 28 22 27 5 18 2 3 17 17 14 15 6 MIN. QFE PRESSURE IN HPA 881.7 885.1 887.4 885.3 882.9 881.4 884.7 885.6 889.4 889.8 885.3 881.7 881.4 DAY 20 6 9 11 3 17 20 15 6 1 7 30 MEAN QNH PRESSURE IN HPA 1016.5 1014.8 1017.3 1015.9 1013.7 1010.2 1012.7 1014.3 1017.4 1019.2 1018.4 1016.9 1015.6 MAX. QNH PRESSURE IN HPA 1026.6 1021.3 1023.7 1022.3 1022.9 1018.1 1016.1 1018.2 1021.2 1026.0 1028.0 1028.1 1028.1 DAY 28 22 27 5 18 2 3 17 17 14 15 6 MIN. QNH PRESSURE IN HPA 1005.0 1008.8 1011.3 1009.0 1006.3 1004.7 1008.3 1009.3 1013.6 1014.0 1009.0 1005.0 1004.7 DAY 20 6 9 11 3 17 20 15 6 1 7 30 MEAN QFF PRESSURE IN HPA 1019.6 1016.7 1020.0 1013.9 1009.2 1003.7 1005.0 1007.3 1011.7 ****** 1023.5 ****** ****** MAX. QFF PRESSURE IN HPA 1032.8 1025.0 1027.9 1021.2 1020.3 1012.6 1010.3 1011.8 1016.5 ****** 1030.9 ****** ****** DAY 28 13 16 4 18 3 22 31 30 ** 16 ** MIN. QFF PRESSURE IN HPA 1006.8 1008.8 1012.5 1006.3 1000.1 997.3 1000.5 1001.7 1007.2 ****** 1010.6 ****** ****** DAY 19 6 1 11 3 17 26 15 6 ** 30 ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 892.6 891.0 893.2 891.9 889.9 886.7 888.9 890.4 893.2 895.1 894.4 892.8 891.7 MAX. QFE PRESSURE IN HPA 901.6 896.5 898.9 899.3 897.8 892.9 891.6 894.1 896.6 902.5 903.2 904.0 904.0 DAY 28 22 27 4 18 2 3 17 21 14 15 6 MIN. QFE PRESSURE IN HPA 882.2 884.6 887.4 885.3 883.5 882.1 885.4 885.8 890.0 890.5 886.2 882.0 882.0 DAY 19 6 9 11 10 17 25 15 6 1 7 30 MEAN QNH PRESSURE IN HPA 1017.1 1015.3 1017.8 1016.3 1014.1 1010.6 1013.1 1014.7 1017.8 1019.9 1019.1 1017.3 1016.1 MAX. QNH PRESSURE IN HPA 1027.1 1021.5 1024.1 1024.6 1022.9 1017.4 1016.0 1018.8 1021.6 1028.1 1028.9 1029.8 1029.8 DAY 28 22 27 4 18 2 3 17 21 14 15 6 MIN. QNH PRESSURE IN HPA 1005.6 1008.2 1011.3 1009.0 1007.0 1005.4 1009.1 1009.6 1014.2 1014.8 1010.0 1005.3 1005.3 DAY 19 6 9 11 10 17 25 15 6 1 7 30 MEAN QFF PRESSURE IN HPA 1021.8 1018.2 1021.3 1014.9 1009.7 1004.3 1005.6 1008.3 1013.1 1017.5 1020.5 1021.3 1014.7 MAX. QFF PRESSURE IN HPA 1036.7 1026.3 1029.2 1025.0 1020.8 1012.7 1010.0 1012.8 1017.0 1026.7 1032.7 1036.2 1036.7 DAY 28 13 16 4 18 3 22 31 21 14 15 11 MIN. QFF PRESSURE IN HPA 1007.4 1008.4 1014.3 1006.4 1001.1 998.4 1001.5 1002.6 1008.8 1011.4 1006.4 1005.3 998.4 DAY 19 6 9 11 3 17 10 15 6 6 9 30 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 892.8 891.4 894.0 893.0 890.9 887.8 890.0 891.4 894.1 ****** 897.4 894.9 ****** MAX. QFE PRESSURE IN HPA 901.6 896.5 899.3 901.1 898.3 894.2 893.4 894.4 897.6 ****** 903.6 906.2 ****** DAY 28 13 27 4 18 2 31 17 7 ** 15 6 MIN. QFE PRESSURE IN HPA 882.1 884.5 887.4 886.4 883.7 883.2 886.3 887.2 890.7 ****** 887.0 883.6 ****** DAY 19 6 9 11 3 17 19 22 25 ** 30 20 MEAN QNH PRESSURE IN HPA 1017.4 1015.8 1018.6 1017.5 1015.2 1011.7 1014.2 1015.8 1018.8 ****** 1022.5 1019.6 ****** MAX. QNH PRESSURE IN HPA 1027.1 1021.5 1024.6 1026.6 1023.5 1018.9 1018.0 1019.1 1022.7 ****** 1029.3 1032.2 ****** DAY 28 13 27 4 18 2 31 17 7 ** 15 6 MIN. QNH PRESSURE IN HPA 1005.4 1008.1 1011.3 1010.2 1007.2 1006.7 1010.1 1011.1 1015.0 ****** 1010.9 1007.1 ****** DAY 19 6 9 11 3 17 19 22 25 ** 30 20 MEAN QFF PRESSURE IN HPA 1021.5 1018.3 1021.7 1015.8 1010.5 1005.2 1006.4 1009.1 1013.3 ****** 1025.2 1023.3 ****** MAX. QFF PRESSURE IN HPA 1035.0 1026.5 1029.6 1026.4 1021.7 1013.5 1012.8 1014.2 1017.6 ****** 1032.8 1035.8 ****** DAY 28 13 16 4 17 2 21 31 30 ** 15 10 MIN. QFF PRESSURE IN HPA 1006.8 1007.6 1014.2 1007.0 1001.2 999.6 1001.9 1004.0 1008.3 ****** 1009.7 1008.7 ****** DAY 19 6 9 30 10 17 9 22 25 ** 30 20 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 893.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** 899.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 2 ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** 886.5 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 9 ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** 1018.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** 1025.1 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 2 ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** 1010.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 9 ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** 1021.5 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** 1029.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 2 ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** 1013.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 9 ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.4 4.4 6.0 11.2 19.9 24.0 25.9 26.9 20.6 10.3 9.1 5.2 14.0 MINIMUN AIR TEMPERATURE (C) -1.1 -1.0 2.3 4.7 11.7 14.3 16.5 17.6 12.2 3.7 2.7 -0.6 6.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 2 0 0 0 0 2 DAYS WITH MINIMUM TEMP. <=-4 8 4 1 0 0 0 0 0 0 0 1 4 18 DAYS WITH FREEZING MIN.<= 0 21 18 9 7 0 0 0 0 0 9 10 20 94 TEMPERATURE RECORDS LOWEST(C) -7.0 -10.6 -5.0 -2.0 4.0 11.0 10.0 12.2 3.8 -1.8 -4.0 -8.2 -10.6 DAY 22 12 23 2 7 1 5 31 24 29 30 2 MAXIMUM AIR TEMPERATURE (C) 10.5 10.6 11.4 18.5 26.6 31.0 31.6 32.7 26.4 15.3 14.7 11.0 20.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 8 22 22 26 3 0 0 0 81 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 1 1 TEMPERATURE RECORDS HIGHEST(C) 17.0 20.0 17.8 28.0 33.8 35.6 37.0 37.2 36.8 28.6 26.0 19.6 37.2 DAY 26 4 9 17 24 18 19 24 5 2 7 20 DIF. BETWEEN (MAX.-MIN.) (C) 11.6 11.6 9.1 13.8 14.9 16.7 15.1 15.1 14.2 11.6 12.0 11.6 13.1 MEAN DAILY TEMP. (MDT) (C) 4.7 4.8 6.8 11.6 19.2 22.6 24.0 25.2 19.3 9.5 8.7 5.2 13.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 13.7 55.1 98.3 131.7 11.4 0.0 0.0 0.0 310.4 HEATING DEG. DAYS(BASE 18 0C) 412.7 368.6 346.7 193.7 23.5 0.0 0.7 0.0 13.7 263.8 280.4 395.8 2299.5 DEWPOINT (MEAN C) -4.5 -2.5 2.1 2.7 7.9 4.6 8.8 9.6 6.1 0.9 -0.8 -5.1 2.5 MIXING RATIO (G/KG) 3.18 3.69 5.16 5.43 7.80 6.35 8.43 8.95 6.93 4.83 4.25 3.10 5.67 VAPOUR PRESSURE (HPA) 4.54 5.26 7.30 7.70 11.03 8.98 11.88 12.60 9.83 6.91 6.08 4.43 8.04 SATURATION DEF. (HPA) 4.31 3.65 2.48 6.73 13.45 22.52 23.08 24.07 15.57 6.53 6.48 5.12 11.17 RELATIVE HUMIDITY (MEAN %) 59 67 79 62 51 34 39 39 44 58 58 56 54 RELATIVE HUMIDITY (MAX. %) 81 89 93 86 77 53 64 69 72 84 84 77 77 RELATIVE HUMIDITY (MIN. %) 35 46 61 35 30 19 24 23 27 42 39 35 35 RELATIVE HUMIDITY (MEAN% 03UTC) 72 86 88 82 74 47 65 68 71 81 81 71 74 RELATIVE HUMIDITY (MEAN% 09UTC) 43 55 72 48 37 23 30 29 35 47 47 43 42 RELATIVE HUMIDITY (MEAN% 15UTC) 54 62 76 52 43 24 32 31 38 57 57 52 48 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 5.5 22.3 97.3 20.8 32.9 0.0 40.2 2.7 2.2 27.6 8.2 13.8 273.5 DAYS WITH PRECIPITATION >=10 0 0 2 0 1 0 1 0 0 1 0 0 5 DAYS WITH PRECIPITATION >= 5 0 1 10 1 3 0 2 0 0 3 0 1 21 DAYS WITH PRECIPITATION >= 1 2 7 19 7 4 0 5 2 1 3 2 5 57 DAYS WITH PRECIPITATION 4 12 22 11 10 0 6 2 5 6 4 8 90 GREATEST DAILY PRECIPITATION 3.6 9.0 14.0 5.0 19.4 0.0 30.0 1.7 1.2 12.0 4.0 6.2 30.0 DAY 27 11 2 20 6 ** 27 5 29 26 8 28 DAY WITH THUNDER STORM 0 0 2 2 5 0 3 2 1 0 0 0 15 DAYS WITH SNOW OR SLEET 2 7 5 2 0 0 0 0 0 0 2 2 20 DAYS WITH DUST 1 0 0 1 4 2 6 7 8 1 0 3 33 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 11.1 16.5 14.8 14.5 12.9 16.8 15.9 15.0 14.1 14.0 12.8 12.6 14.4 PREVAILING WIND PERCENT 12.7 22.4 29.7 31.4 28.0 15.5 26.5 31.6 38.0 26.5 18.7 12.0 24.3 CALMS PERCENT OF WIND 58.3 58.3 54.0 50.0 54.9 48.7 37.4 39.4 46.7 58.7 67.3 62.0 53.0 NO. OF WIND OBSERVATION 204 156 202 210 193 193 155 155 150 155 150 166 2089 VECTOR WIND DIRECTION (MEAN) 217 272 281 280 289 331 301 298 287 288 270 203 284 VECTOR WIND MAGNITUDE(KNOTS) 1.6 3.3 4.7 5.6 4.0 2.5 6.0 5.3 5.8 4.6 3.0 2.6 3.7 WIND STEADINESES (MEAN %) 32.7 57.9 72.3 80.0 76.9 39.1 75.9 67.9 86.6 85.2 76.9 50.0 60.7 WIND SPEED (MEAN KNOTS) 4.9 5.7 6.5 7.0 5.2 6.4 7.9 7.8 6.7 5.4 3.9 5.2 6.1 FASTEST WIND DIRECTION 290 150 280 210 270 290 270 290 280 280 290 180 150 FASTEST WIND SPEED (KNOTS) 39 58 47 58 39 31 39 31 39 39 29 45 58 DAY 27 8 20 26 16 5 3 21 18 4 7 23 DAYS WITH SKY CLEAR (0-2)/8 13 8 2 12 8 26 19 25 22 14 13 11 173 DAYS WITH P.CLOUDY (3-6)/8 10 9 8 8 14 3 9 6 6 8 10 10 101 DAYS WITH CLOUDY (7-8)/8 8 11 21 10 9 1 3 0 2 9 7 10 91 DAYS WITH VISIBILITY =< 2 KM 3 5 7 2 1 0 0 0 0 1 0 1 20 DURATION OF SUNSHINE HOURS 152.0 146.7 92.4 217.6 246.7 338.6 311.7 327.4 253.4 201.0 186.8 157.5 2631.8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 893.8 893.5 888.0 891.4 891.2 889.8 889.2 889.4 893.0 897.5 896.4 893.4 892.2 MAX. QFE PRESSURE IN HPA 905.0 904.7 899.2 899.1 897.9 894.9 893.5 896.1 899.8 904.5 908.3 907.2 908.3 DAY-HOUR 21- 6 1- 6 22-15 22- 6 13- 6 6- 6 10-15 5- 6 24- 3 16- 6 30- 6 1- 6 MIN. QFE PRESSURE IN HPA 883.7 882.2 876.8 879.8 884.1 885.6 882.2 883.0 885.9 888.2 884.4 882.8 876.8 DAY-HOUR 7- 3 10-15 14- 9 19-18 22-15 18-15 8-12 18-15 5-12 4-12 7-12 24- 9 MEAN QNH PRESSURE IN HPA 1018.4 1018.2 1012.0 1015.8 1015.6 1014.0 1013.3 1013.5 1017.6 1022.6 1021.4 1018.0 1016.7 MAX. QNH PRESSURE IN HPA 1030.9 1030.6 1024.5 1024.3 1023.0 1019.7 1018.1 1021.0 1025.1 1030.3 1034.6 1033.3 1034.6 DAY-HOUR 21- 6 1- 6 22-15 22- 6 13- 6 6- 6 10-15 5- 6 24- 3 16- 6 30- 6 1- 6 MIN. QNH PRESSURE IN HPA 1007.2 1005.6 999.5 1002.9 1007.7 1009.3 1005.6 1006.4 1009.7 1012.2 1008.0 1006.2 999.5 DAY-HOUR 7- 3 10-15 14- 9 19-18 22-15 18-15 8-12 18-15 5-12 4-12 7-12 24- 9 MEAN QFF PRESSURE IN HPA 1021.1 ****** 1012.9 1014.5 1010.0 1007.1 ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1034.1 ****** 1029.2 1025.7 1020.5 1015.9 ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 21- 6 **-** 22-18 6- 6 1- 3 6- 6 **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA 1005.9 ****** 998.5 997.4 1001.0 1001.3 ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 27- 6 **-** 20- 0 19-18 22-18 18-15 **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 894.0 ****** 887.0 891.1 890.5 889.4 ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 904.0 ****** 898.3 897.1 897.3 893.8 ****** ****** ****** ****** ****** ****** ****** DAY 21 ** 23 22 1 6 ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 884.5 ****** 877.8 880.9 884.7 886.9 ****** ****** ****** ****** ****** ****** ****** DAY 3 ** 20 20 23 19 ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1018.7 ****** 1010.9 1015.4 1014.7 1013.5 ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1029.8 ****** 1023.5 1022.1 1022.3 1018.4 ****** ****** ****** ****** ****** ****** ****** DAY 21 ** 23 22 1 6 ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1008.1 ****** 1000.7 1004.1 1008.3 1010.8 ****** ****** ****** ****** ****** ****** ****** DAY 3 ** 20 20 23 19 ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1020.4 ****** 1011.7 1013.7 1009.2 1006.8 ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1033.1 ****** 1028.1 1023.3 1020.1 1014.4 ****** ****** ****** ****** ****** ****** ****** DAY 12 ** 23 22 1 6 ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1008.1 ****** 998.5 998.6 1002.0 1001.7 ****** ****** ****** ****** ****** ****** ****** DAY 27 ** 20 20 23 19 ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 893.3 893.7 888.0 891.9 892.2 890.6 890.1 890.4 894.0 897.8 896.7 893.9 892.7 MAX. QFE PRESSURE IN HPA 904.3 904.5 897.9 898.5 897.4 894.4 893.5 895.8 899.8 904.0 907.7 906.1 907.7 DAY 21 1 23 30 1 6 24 8 24 16 30 1 MIN. QFE PRESSURE IN HPA 883.7 885.4 877.5 883.1 885.6 888.1 884.8 886.2 889.2 890.8 886.1 883.8 877.5 DAY 7 11 14 20 23 5 7 18 6 9 7 24 MEAN QNH PRESSURE IN HPA 1017.9 1018.3 1012.0 1016.3 1016.7 1014.9 1014.4 1014.6 1018.7 1022.9 1021.7 1018.5 1017.2 MAX. QNH PRESSURE IN HPA 1030.1 1030.3 1023.0 1023.7 1022.5 1019.1 1018.1 1020.7 1025.1 1029.8 1033.9 1032.1 1033.9 DAY 21 1 23 30 1 6 24 8 24 16 30 1 MIN. QNH PRESSURE IN HPA 1007.2 1009.1 1000.3 1006.6 1009.3 1012.1 1008.4 1010.0 1013.3 1015.1 1009.9 1007.3 1000.3 DAY 7 11 14 20 23 5 7 18 6 9 7 24 MEAN QFF PRESSURE IN HPA 1020.5 1021.0 1013.0 1015.3 1011.8 1008.1 1007.1 1006.9 1014.0 1023.0 1022.5 1020.9 1015.3 MAX. QFF PRESSURE IN HPA 1034.1 1033.1 1028.4 1024.9 1020.5 1015.7 1011.1 1013.4 1025.4 1032.4 1039.6 1038.9 1039.6 DAY 12 12 23 22 1 6 12 6 24 29 30 1 MIN. QFF PRESSURE IN HPA 1006.6 1009.9 1000.4 1002.7 1002.8 1004.0 999.9 1001.1 1005.9 1012.6 1005.2 1004.1 999.9 DAY 7 11 14 26 23 19 7 18 6 4 7 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 894.5 894.7 889.0 892.5 892.5 890.8 890.2 890.6 894.3 898.4 897.6 894.8 893.3 MAX. QFE PRESSURE IN HPA 905.0 904.7 899.2 899.1 897.9 894.9 893.5 896.1 899.8 904.5 908.3 907.2 908.3 DAY 21 1 23 22 13 6 24 5 24 16 30 1 MIN. QFE PRESSURE IN HPA 884.6 886.6 877.2 884.6 886.2 888.2 884.8 886.2 889.8 891.2 886.3 884.5 877.2 DAY 7 9 14 20 23 2 8 18 5 4 7 24 MEAN QNH PRESSURE IN HPA 1019.2 1019.4 1013.1 1017.0 1017.0 1015.2 1014.5 1014.8 1019.0 1023.6 1022.6 1019.5 1017.9 MAX. QNH PRESSURE IN HPA 1030.9 1030.6 1024.5 1024.3 1023.0 1019.7 1018.1 1021.0 1025.1 1030.3 1034.6 1033.3 1034.6 DAY 21 1 23 22 13 6 24 5 24 16 30 1 MIN. QNH PRESSURE IN HPA 1008.2 1010.4 1000.0 1008.2 1010.0 1012.2 1008.4 1010.0 1014.0 1015.6 1010.1 1008.1 1000.0 DAY 7 9 14 20 23 2 8 18 5 4 7 24 MEAN QFF PRESSURE IN HPA 1022.7 ****** 1013.9 1015.8 1010.4 1008.1 ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1034.1 ****** 1028.8 1025.7 1020.1 1015.9 ****** ****** ****** ****** ****** ****** ****** DAY 21 ** 23 6 1 6 ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1005.9 ****** 999.0 1003.5 1003.3 1004.0 ****** ****** ****** ****** ****** ****** ****** DAY 27 ** 14 20 23 19 ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 893.5 893.5 888.3 891.5 891.4 890.0 889.1 889.3 892.9 897.4 896.3 893.2 892.2 MAX. QFE PRESSURE IN HPA 904.4 902.5 898.0 898.4 897.6 894.4 892.8 895.1 898.0 903.6 907.2 906.2 907.2 DAY 21 1 22 30 13 6 10 8 24 15 30 1 MIN. QFE PRESSURE IN HPA 884.4 885.5 876.8 883.0 885.3 886.8 883.2 884.8 887.3 889.5 884.7 882.8 876.8 DAY 7 9 14 19 23 2 8 18 5 4 7 24 MEAN QNH PRESSURE IN HPA 1018.1 1018.1 1012.3 1015.9 1015.8 1014.2 1013.2 1013.5 1017.5 1022.5 1021.2 1017.8 1016.7 MAX. QNH PRESSURE IN HPA 1030.2 1028.1 1023.1 1023.6 1022.7 1019.1 1017.3 1019.9 1023.1 1029.3 1033.3 1032.2 1033.3 DAY 21 1 22 30 13 6 10 8 24 15 30 1 MIN. QNH PRESSURE IN HPA 1008.0 1009.2 999.5 1006.4 1009.0 1010.7 1006.7 1008.4 1011.2 1013.7 1008.3 1006.2 999.5 DAY 7 9 14 19 23 2 8 18 5 4 7 24 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 893.0 892.2 887.6 890.5 890.4 889.0 888.1 888.3 891.8 896.8 895.6 892.6 891.3 MAX. QFE PRESSURE IN HPA 903.5 900.0 898.2 897.6 896.1 893.0 893.0 895.2 896.2 903.1 906.9 904.6 906.9 DAY 20 1 22 30 13 6 10 5 25 16 30 1 MIN. QFE PRESSURE IN HPA 884.7 882.9 877.1 880.9 884.8 886.2 882.2 883.6 885.9 888.2 884.4 884.4 877.1 DAY 2 10 14 19 22 2 8 18 5 4 7 24 MEAN QNH PRESSURE IN HPA 1017.6 1016.7 1011.6 1014.8 1014.7 1013.1 1012.1 1012.3 1016.3 1021.8 1020.5 1017.1 1015.7 MAX. QNH PRESSURE IN HPA 1029.2 1025.3 1023.3 1022.7 1021.0 1017.6 1017.6 1020.0 1021.1 1028.8 1033.0 1030.5 1033.0 DAY 20 1 22 30 13 6 10 5 25 16 30 1 MIN. QNH PRESSURE IN HPA 1008.3 1006.3 999.9 1004.1 1008.4 1010.0 1005.6 1007.1 1009.7 1012.2 1008.0 1008.0 999.9 DAY 2 10 14 19 22 2 8 18 5 4 7 24 MEAN QFF PRESSURE IN HPA 1020.6 ****** 1012.0 1013.0 1008.0 1006.0 ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1032.4 ****** 1027.5 1024.2 1016.0 1012.6 ****** ****** ****** ****** ****** ****** ****** DAY 20 ** 22 6 6 6 ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1009.5 ****** 1001.0 999.3 1001.6 1001.4 ****** ****** ****** ****** ****** ****** ****** DAY 2 ** 14 19 24 19 ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 893.5 892.7 888.1 890.9 890.6 889.1 888.3 888.4 892.1 897.3 896.1 893.2 891.7 MAX. QFE PRESSURE IN HPA 903.8 899.6 899.2 898.2 896.1 892.7 893.5 894.5 897.7 903.4 907.2 904.9 907.2 DAY 20 1 22 30 13 6 10 5 23 16 30 1 MIN. QFE PRESSURE IN HPA 885.2 882.2 878.6 880.0 884.1 885.6 882.2 883.0 886.5 889.8 886.0 885.5 878.6 DAY 2 10 14 19 22 18 8 18 5 4 7 13 MEAN QNH PRESSURE IN HPA 1018.1 1017.3 1012.1 1015.2 1014.9 1013.2 1012.4 1012.5 1016.6 1022.3 1021.1 1017.8 1016.1 MAX. QNH PRESSURE IN HPA 1029.6 1024.9 1024.5 1023.3 1021.0 1017.2 1018.1 1019.2 1022.8 1029.1 1033.3 1030.8 1033.3 DAY 20 1 22 30 13 6 10 5 23 16 30 1 MIN. QNH PRESSURE IN HPA 1008.9 1005.6 1001.5 1003.1 1007.7 1009.3 1005.6 1006.4 1010.3 1014.0 1009.8 1009.2 1001.5 DAY 2 10 14 19 22 18 8 18 5 4 7 13 MEAN QFF PRESSURE IN HPA 1020.6 1019.9 1013.1 1014.1 1010.0 1006.4 1005.1 1005.0 1012.0 1022.5 1022.0 1020.2 1014.2 MAX. QFF PRESSURE IN HPA 1033.0 1029.6 1029.1 1024.2 1016.4 1012.5 1012.2 1012.6 1021.0 1032.0 1038.9 1037.4 1038.9 DAY 20 6 22 6 6 6 10 5 23 28 30 1 MIN. QFF PRESSURE IN HPA 1010.1 1005.7 1001.4 999.1 1001.4 1001.3 996.7 997.7 1003.0 1011.3 1005.4 1008.2 996.7 DAY 2 10 19 19 22 18 8 18 5 4 7 13 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 895.0 ****** 888.2 891.8 890.4 889.7 ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 904.2 ****** 899.2 898.9 893.8 894.2 ****** ****** ****** ****** ****** ****** ****** DAY 20 ** 22 30 6 5 ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 884.9 ****** 878.2 879.8 884.3 886.1 ****** ****** ****** ****** ****** ****** ****** DAY 2 ** 19 19 22 2 ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1019.8 ****** 1012.2 1016.2 1014.6 1013.8 ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1030.0 ****** 1024.5 1024.1 1018.4 1018.9 ****** ****** ****** ****** ****** ****** ****** DAY 20 ** 22 30 6 5 ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1008.6 ****** 1001.1 1002.9 1007.9 1009.9 ****** ****** ****** ****** ****** ****** ****** DAY 2 ** 19 19 22 2 ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1022.1 ****** 1013.6 1015.0 1009.3 1007.3 ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1033.2 ****** 1029.2 1024.6 1017.2 1014.3 ****** ****** ****** ****** ****** ****** ****** DAY 20 ** 22 6 6 5 ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1009.4 ****** 1000.3 997.4 1001.0 1001.6 ****** ****** ****** ****** ****** ****** ****** DAY 2 ** 19 19 22 18 ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -0.6 1.3 7.4 12.7 16.5 24.1 24.9 23.2 19.6 13.7 9.3 5.0 13.1 MINIMUN AIR TEMPERATURE (C) -4.4 -2.4 2.2 7.0 10.5 15.7 18.3 16.8 12.9 6.8 3.4 0.2 7.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 2 0 0 0 0 0 3 DAYS WITH MINIMUM TEMP. <=-4 17 8 0 0 0 0 0 0 0 0 0 6 31 DAYS WITH FREEZING MIN.<= 0 27 24 6 2 0 0 0 0 0 0 9 15 83 TEMPERATURE RECORDS LOWEST(C) -13.2 -14.6 -2.8 -1.0 6.2 11.6 15.0 12.4 6.0 2.4 -3.4 -6.0 -14.6 DAY 24 8 26 7 6 1 3 10 27 3 26 30 MAXIMUM AIR TEMPERATURE (C) 4.1 6.4 13.7 19.3 23.4 31.1 31.5 29.9 26.6 21.1 16.3 11.4 19.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 19 21 20 5 0 0 0 67 DAYS WITH MAXIMUM TEMP. <= 0 4 4 0 0 0 0 0 0 0 0 0 0 8 TEMPERATURE RECORDS HIGHEST(C) 10.2 18.0 23.5 29.8 34.4 37.4 36.6 36.7 35.0 28.0 25.0 17.2 37.4 DAY 6 24 21 23 28 15 3 12 9 27 10 11 DIF. BETWEEN (MAX.-MIN.) (C) 8.5 8.8 11.5 12.3 12.9 15.4 13.2 13.1 13.7 14.3 12.9 11.2 12.4 MEAN DAILY TEMP. (MDT) (C) -0.1 2.0 7.9 13.2 16.9 23.4 24.9 23.3 19.8 14.0 9.9 5.8 13.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 5.3 74.6 124.6 78.9 23.6 0.0 0.0 0.0 307.0 HEATING DEG. DAYS(BASE 18 0C) 562.5 464.3 312.2 152.8 60.3 0.0 0.0 0.0 20.8 121.4 243.9 379.0 2317.3 DEWPOINT (MEAN C) -4.8 -4.2 0.2 5.7 8.9 8.6 13.0 10.4 7.3 1.9 0.2 -2.0 3.8 MIXING RATIO (G/KG) 3.11 3.29 4.47 6.80 8.21 8.26 11.04 9.50 7.71 5.14 4.59 3.83 6.33 VAPOUR PRESSURE (HPA) 4.44 4.69 6.34 9.61 11.60 11.61 15.46 13.35 10.91 7.33 6.54 5.45 8.94 SATURATION DEF. (HPA) 1.63 2.55 4.53 6.33 8.26 19.77 17.25 16.22 13.05 9.16 6.07 3.77 9.05 RELATIVE HUMIDITY (MEAN %) 77 71 66 67 65 41 53 50 50 50 59 64 59 RELATIVE HUMIDITY (MAX. %) 90 88 90 88 87 62 76 76 74 72 83 83 81 RELATIVE HUMIDITY (MIN. %) 57 50 38 43 44 26 34 30 29 31 36 45 39 RELATIVE HUMIDITY (MEAN% 03UTC) 85 83 84 84 83 56 73 73 70 68 77 76 76 RELATIVE HUMIDITY (MEAN% 09UTC) 67 61 48 52 51 31 40 34 35 37 43 52 46 RELATIVE HUMIDITY (MEAN% 15UTC) 77 70 63 60 55 32 41 39 41 43 52 62 53 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 41.7 32.7 56.0 53.3 20.0 0.0 27.4 48.0 3.2 1.4 17.7 23.1 324.5 DAYS WITH PRECIPITATION >=10 1 1 1 2 1 0 0 1 0 0 0 0 7 DAYS WITH PRECIPITATION >= 5 2 3 4 4 1 0 3 2 0 0 1 2 22 DAYS WITH PRECIPITATION >= 1 9 6 10 9 4 0 5 2 2 1 4 9 61 DAYS WITH PRECIPITATION 12 15 14 13 5 0 6 2 3 2 7 11 90 GREATEST DAILY PRECIPITATION 11.6 10.7 20.2 15.0 14.2 0.0 7.1 41.0 2.0 1.4 7.0 5.0 41.0 DAY 19 26 5 27 3 ** 8 21 30 22 20 20 DAY WITH THUNDER STORM 0 0 1 4 2 0 4 2 1 1 0 0 15 DAYS WITH SNOW OR SLEET 11 11 4 0 0 0 0 0 0 0 1 6 33 DAYS WITH DUST 0 0 0 1 2 3 3 4 3 1 0 2 19 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 16.2 13.7 16.5 14.2 13.9 15.0 14.7 14.9 13.4 11.2 14.2 11.7 14.1 PREVAILING WIND PERCENT 14.3 19.2 24.4 30.0 44.1 29.5 46.5 47.9 41.4 31.3 15.7 12.0 29.9 CALMS PERCENT OF WIND 71.9 64.0 51.2 51.4 42.4 46.2 37.3 34.3 51.4 60.4 67.1 74.2 54.2 NO. OF WIND OBSERVATION 217 203 217 220 238 210 217 213 210 217 210 217 2589 VECTOR WIND DIRECTION (MEAN) 263 266 271 291 284 296 286 287 280 278 260 203 280 VECTOR WIND MAGNITUDE(KNOTS) 2.3 2.6 4.4 4.1 5.8 4.5 7.0 8.3 5.8 3.9 2.0 1.5 4.2 WIND STEADINESES (MEAN %) 59.0 59.1 62.9 66.1 78.4 68.2 84.3 91.2 92.1 90.7 45.5 41.7 70.0 WIND SPEED (MEAN KNOTS) 3.9 4.4 7.0 6.2 7.4 6.6 8.3 9.1 6.3 4.3 4.4 3.6 6.0 FASTEST WIND DIRECTION 280 140 290 290 280 290 270 280 280 280 280 160 280 FASTEST WIND SPEED (KNOTS) 39 39 39 39 39 33 43 39 39 33 64 49 64 DAY 19 1 1 13 13 25 26 19 5 31 14 26 DAYS WITH SKY CLEAR (0-2)/8 9 7 6 5 14 23 19 20 24 20 13 10 170 DAYS WITH P.CLOUDY (3-6)/8 10 9 14 11 13 6 10 10 6 7 10 15 121 DAYS WITH CLOUDY (7-8)/8 12 13 11 14 4 1 2 1 0 4 7 6 75 DAYS WITH VISIBILITY =< 2 KM 11 7 2 2 3 0 0 2 0 0 1 4 32 DURATION OF SUNSHINE HOURS 119.2 120.4 181.4 169.1 279.7 324.0 303.6 310.8 282.8 241.3 197.2 171.2 2700.7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 892.9 892.6 888.3 891.3 891.0 887.3 887.1 888.7 892.3 895.3 893.8 891.5 891.0 MAX. QFE PRESSURE IN HPA 903.5 904.1 900.8 903.0 899.2 893.1 892.0 896.0 899.5 903.0 903.8 900.6 904.1 DAY-HOUR 3- 6 7- 6 17- 6 8-18 4-18 1- 3 31- 6 21- 6 21- 6 28- 6 6- 6 5- 6 MIN. QFE PRESSURE IN HPA 882.7 883.9 875.6 882.3 882.3 879.9 882.1 881.7 886.0 885.2 884.4 873.1 873.1 DAY-HOUR 29- 3 2- 0 5- 0 30- 9 28-15 23-12 15-15 29-15 5-12 30-12 20- 3 27-12 MEAN QNH PRESSURE IN HPA 1017.5 1017.1 1012.3 1015.7 1015.3 1011.2 1011.0 1012.7 1016.7 1020.1 1018.5 1015.9 1015.3 MAX. QNH PRESSURE IN HPA 1029.2 1029.9 1026.2 1028.7 1024.5 1017.7 1016.4 1020.9 1024.8 1028.7 1029.6 1026.0 1029.9 DAY-HOUR 3- 6 7- 6 17- 6 8-18 4-18 1- 3 31- 6 21- 6 21- 6 28- 6 6- 6 5- 6 MIN. QNH PRESSURE IN HPA 1006.1 1007.4 998.2 1005.7 1005.7 1003.0 1005.4 1005.0 1009.8 1008.9 1008.0 995.4 995.4 DAY-HOUR 29- 3 2- 0 5- 0 30- 9 28-15 23-12 15-15 29-15 5-12 30-12 20- 3 27-12 MEAN QFF PRESSURE IN HPA 1021.9 1020.5 1012.7 1013.1 1011.4 1004.0 1003.2 1005.8 1011.5 1017.8 1018.2 1017.6 1013.1 MAX. QFF PRESSURE IN HPA 1034.5 1038.7 1027.7 1030.7 1023.9 1012.3 1010.0 1014.4 1020.9 1028.4 1028.2 1029.4 1038.7 DAY-HOUR 3- 3 7- 6 17- 6 8-18 4-18 1- 0 27- 6 21- 6 25- 3 17- 3 6- 6 29-18 MIN. QFF PRESSURE IN HPA 1006.6 1005.5 995.3 1000.4 998.3 993.9 996.0 998.3 1001.6 1005.1 1004.5 994.5 993.9 DAY-HOUR 29- 0 2-12 5- 0 23-12 28-15 15-15 15-15 29-18 5-12 30-12 20- 3 27-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 892.7 892.3 887.9 891.3 890.9 887.4 887.3 888.6 892.2 895.2 893.9 891.3 890.9 MAX. QFE PRESSURE IN HPA 901.8 902.2 898.1 901.1 898.1 892.9 890.8 893.8 897.2 902.2 902.6 898.8 902.6 DAY 3 7 17 9 5 1 31 21 25 17 6 22 MIN. QFE PRESSURE IN HPA 882.9 883.9 875.6 886.0 883.7 880.6 884.1 882.9 887.0 886.0 885.2 877.6 875.6 DAY 29 2 5 15 1 24 1 30 5 31 20 26 MEAN QNH PRESSURE IN HPA 1017.2 1016.7 1011.9 1015.7 1015.2 1011.4 1011.2 1012.7 1016.6 1020.0 1018.6 1015.7 1015.2 MAX. QNH PRESSURE IN HPA 1027.3 1027.8 1023.2 1026.6 1023.2 1017.4 1015.1 1018.4 1022.2 1027.8 1028.2 1024.0 1028.2 DAY 3 7 17 9 5 1 31 21 25 17 6 22 MIN. QNH PRESSURE IN HPA 1006.3 1007.4 998.2 1009.8 1007.2 1003.8 1007.7 1006.3 1010.9 1009.8 1008.9 1000.4 998.2 DAY 29 2 5 15 1 24 1 30 5 31 20 26 MEAN QFF PRESSURE IN HPA 1021.3 1019.8 1011.7 1013.2 1010.9 1004.2 1003.1 1005.3 1010.9 1017.0 1017.6 1016.6 1012.6 MAX. QFF PRESSURE IN HPA 1033.6 1036.6 1023.4 1029.3 1022.4 1012.3 1007.4 1010.7 1019.2 1027.4 1026.9 1027.6 1036.6 DAY 3 7 17 9 5 1 28 22 25 17 6 22 MIN. QFF PRESSURE IN HPA 1006.6 1006.2 995.3 1004.8 1000.6 994.0 998.6 998.5 1003.1 1006.3 1005.7 1000.2 994.0 DAY 29 2 5 23 29 23 16 30 5 31 20 26 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 892.9 892.6 888.5 891.7 891.6 888.3 888.1 889.4 892.8 895.7 894.3 891.7 891.5 MAX. QFE PRESSURE IN HPA 902.6 903.1 900.1 901.7 898.5 893.1 891.7 895.3 898.0 902.4 903.1 899.2 903.1 DAY 3 7 17 9 5 1 31 21 25 17 6 5 MIN. QFE PRESSURE IN HPA 882.7 884.6 877.3 885.2 883.7 881.6 884.9 884.2 887.4 888.5 884.4 876.3 876.3 DAY 29 1 5 30 1 23 1 29 5 31 20 26 MEAN QNH PRESSURE IN HPA 1017.5 1017.2 1012.5 1016.2 1016.0 1012.3 1012.1 1013.6 1017.4 1020.6 1019.1 1016.2 1015.9 MAX. QNH PRESSURE IN HPA 1028.2 1028.8 1025.5 1027.2 1023.7 1017.7 1016.1 1020.1 1023.1 1028.0 1028.8 1024.5 1028.8 DAY 3 7 17 9 5 1 31 21 25 17 6 5 MIN. QNH PRESSURE IN HPA 1006.1 1008.2 1000.1 1008.9 1007.2 1004.9 1008.6 1007.8 1011.3 1012.6 1008.0 999.0 999.0 DAY 29 1 5 30 1 23 1 29 5 31 20 26 MEAN QFF PRESSURE IN HPA 1022.3 1021.0 1013.4 1014.3 1012.1 1005.1 1004.2 1006.7 1012.5 1018.9 1019.3 1018.2 1014.0 MAX. QFF PRESSURE IN HPA 1034.5 1038.5 1026.6 1029.9 1022.9 1012.3 1008.7 1012.9 1020.9 1028.4 1027.5 1028.6 1038.5 DAY 3 7 17 9 5 1 27 21 25 17 6 30 MIN. QFF PRESSURE IN HPA 1007.7 1007.3 997.5 1005.8 1001.9 995.6 1000.1 1000.7 1004.4 1010.2 1004.5 999.6 995.6 DAY 29 2 5 30 29 23 16 30 5 31 20 26 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 893.9 893.5 889.2 892.4 891.6 888.3 888.2 889.8 893.5 896.5 895.0 892.8 892.1 MAX. QFE PRESSURE IN HPA 903.5 904.1 900.8 902.2 898.5 892.9 892.0 896.0 899.5 903.0 903.8 900.6 904.1 DAY 3 7 17 9 5 8 31 21 21 28 6 5 MIN. QFE PRESSURE IN HPA 883.1 885.7 878.3 884.6 884.2 881.2 884.8 884.2 888.2 890.6 885.4 878.6 878.3 DAY 29 1 5 30 1 23 1 29 5 21 20 26 MEAN QNH PRESSURE IN HPA 1018.6 1018.1 1013.3 1016.9 1016.0 1012.3 1012.2 1014.0 1018.1 1021.5 1019.8 1017.4 1016.5 MAX. QNH PRESSURE IN HPA 1029.2 1029.9 1026.2 1027.8 1023.7 1017.4 1016.4 1020.9 1024.8 1028.7 1029.6 1026.0 1029.9 DAY 3 7 17 9 5 8 31 21 21 28 6 5 MIN. QNH PRESSURE IN HPA 1006.6 1009.4 1001.2 1008.2 1007.8 1004.4 1008.4 1007.8 1012.2 1014.9 1009.1 1001.5 1001.2 DAY 29 1 5 30 1 23 1 29 5 21 20 26 MEAN QFF PRESSURE IN HPA 1023.1 1021.7 1013.9 1014.9 1012.0 1005.1 1004.5 1007.4 1012.9 1019.1 1019.5 1019.2 1014.4 MAX. QFF PRESSURE IN HPA 1034.5 1038.7 1027.7 1029.5 1022.0 1011.5 1010.0 1014.4 1020.8 1027.6 1028.2 1028.9 1038.7 DAY 3 7 17 9 5 1 27 21 25 16 6 24 MIN. QFF PRESSURE IN HPA 1007.9 1007.7 999.1 1004.5 1003.1 995.2 1000.7 1002.0 1005.3 1009.8 1005.0 1001.1 995.2 DAY 29 2 5 30 29 23 15 30 5 21 20 26 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 892.9 892.7 888.2 891.4 890.9 887.3 887.1 888.7 892.2 895.1 893.4 891.2 890.9 MAX. QFE PRESSURE IN HPA 902.3 902.5 899.8 901.3 897.7 892.1 890.6 895.2 898.6 902.2 901.4 899.7 902.5 DAY 3 7 17 8 4 8 27 21 21 28 6 5 MIN. QFE PRESSURE IN HPA 883.6 884.2 879.4 882.3 884.5 880.0 883.8 883.2 887.0 888.2 884.5 875.7 875.7 DAY 29 2 9 30 1 23 1 29 5 30 20 27 MEAN QNH PRESSURE IN HPA 1017.4 1017.2 1012.2 1015.8 1015.2 1011.2 1011.0 1012.8 1016.7 1019.9 1018.0 1015.6 1015.3 MAX. QNH PRESSURE IN HPA 1027.9 1028.1 1025.1 1026.8 1022.8 1016.6 1014.9 1020.0 1023.8 1027.8 1026.9 1025.0 1028.1 DAY 3 7 17 8 4 8 27 21 21 28 6 5 MIN. QNH PRESSURE IN HPA 1007.1 1007.8 1002.4 1005.7 1008.1 1003.1 1007.3 1006.7 1010.9 1012.2 1008.1 998.3 998.3 DAY 29 2 9 30 1 23 1 29 5 30 20 27 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1012.1 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1022.3 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 4 ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1003.9 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 13 ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 892.3 891.8 887.2 890.6 890.1 886.3 886.1 887.6 891.2 894.3 892.8 890.6 890.1 MAX. QFE PRESSURE IN HPA 900.6 902.0 897.5 901.1 897.8 891.2 889.6 893.9 898.2 901.7 901.3 897.8 902.0 DAY 3 7 17 8 4 8 31 21 21 16 5 5 MIN. QFE PRESSURE IN HPA 884.1 884.0 878.8 883.1 883.2 879.9 883.0 882.1 886.0 885.2 884.5 873.1 873.1 DAY 29 1 9 30 28 23 15 29 5 30 28 27 MEAN QNH PRESSURE IN HPA 1016.8 1016.2 1011.1 1014.9 1014.3 1010.1 1009.9 1011.6 1015.6 1019.0 1017.3 1014.9 1014.3 MAX. QNH PRESSURE IN HPA 1026.0 1027.6 1022.6 1026.6 1022.9 1015.6 1013.8 1018.6 1023.3 1027.2 1026.8 1022.9 1027.6 DAY 3 7 17 8 4 8 31 21 21 16 5 5 MIN. QNH PRESSURE IN HPA 1007.7 1007.6 1001.8 1006.6 1006.7 1003.0 1006.4 1005.4 1009.8 1008.9 1008.1 995.4 995.4 DAY 29 1 9 30 28 23 15 29 5 30 28 27 MEAN QFF PRESSURE IN HPA 1020.7 1019.2 1010.9 1012.5 1009.9 1002.9 1001.9 1004.7 1010.0 1016.0 1016.3 1015.8 1011.7 MAX. QFF PRESSURE IN HPA 1031.3 1036.5 1023.1 1029.0 1021.9 1009.5 1008.0 1012.0 1019.0 1026.1 1024.7 1027.4 1036.5 DAY 3 7 17 8 4 8 27 21 21 16 5 29 MIN. QFF PRESSURE IN HPA 1010.2 1005.5 998.2 1000.4 999.3 994.3 997.3 999.8 1001.6 1005.1 1006.1 994.5 994.3 DAY 29 2 21 23 28 23 15 19 5 30 20 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 892.8 892.3 888.2 890.9 890.1 886.3 886.1 887.7 891.6 894.8 893.5 891.3 890.5 MAX. QFE PRESSURE IN HPA 901.0 902.7 896.8 902.2 898.5 891.5 889.3 893.7 897.9 902.4 902.9 898.2 902.9 DAY 10 6 17 8 4 7 30 21 21 28 5 21 MIN. QFE PRESSURE IN HPA 885.2 884.5 880.2 884.0 882.3 880.3 882.1 881.7 886.5 886.0 886.1 873.7 873.7 DAY 31 2 4 23 28 15 15 29 4 30 28 27 MEAN QNH PRESSURE IN HPA 1017.3 1016.8 1012.2 1015.3 1014.4 1010.1 1009.9 1011.6 1016.0 1019.6 1018.1 1015.7 1014.8 MAX. QNH PRESSURE IN HPA 1026.5 1028.3 1021.8 1027.8 1023.7 1015.9 1013.4 1018.3 1023.0 1028.0 1028.6 1023.3 1028.6 DAY 10 6 17 8 4 7 30 21 21 28 5 21 MIN. QNH PRESSURE IN HPA 1008.9 1008.1 1003.3 1007.6 1005.7 1003.4 1005.4 1005.0 1010.3 1009.8 1009.9 996.1 996.1 DAY 31 2 4 23 28 15 15 29 4 30 28 27 MEAN QFF PRESSURE IN HPA 1022.0 1020.6 1013.0 1013.3 1010.3 1002.8 1002.1 1004.9 1011.2 1017.9 1018.4 1017.8 1012.9 MAX. QFF PRESSURE IN HPA 1032.1 1036.8 1024.1 1029.5 1023.1 1009.6 1007.6 1012.2 1019.3 1027.1 1026.9 1029.2 1036.8 DAY 10 7 25 8 4 7 27 21 21 16 5 29 MIN. QFF PRESSURE IN HPA 1010.1 1007.8 1001.4 1001.9 998.3 993.9 996.0 998.5 1003.2 1007.4 1010.3 995.1 993.9 DAY 31 1 4 23 28 15 15 29 5 20 28 27 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 893.2 892.9 888.9 892.0 891.3 887.3 887.3 888.9 892.4 895.3 894.0 891.8 891.3 MAX. QFE PRESSURE IN HPA 901.2 902.9 896.7 903.0 899.2 892.8 889.8 894.1 897.8 902.6 903.1 899.3 903.1 DAY 10 6 17 8 4 7 30 21 13 16 5 21 MIN. QFE PRESSURE IN HPA 885.5 884.4 878.6 884.7 884.1 881.1 884.0 882.5 887.3 886.0 887.1 880.1 878.6 DAY 31 1 4 30 28 15 8 29 4 30 28 27 MEAN QNH PRESSURE IN HPA 1017.8 1017.4 1013.0 1016.4 1015.7 1011.3 1011.2 1013.0 1016.9 1020.2 1018.7 1016.2 1015.6 MAX. QNH PRESSURE IN HPA 1026.7 1028.6 1021.7 1028.7 1024.5 1017.3 1014.0 1018.8 1022.9 1028.2 1028.8 1024.6 1028.8 DAY 10 6 17 8 4 7 30 21 13 16 5 21 MIN. QNH PRESSURE IN HPA 1009.2 1008.0 1001.5 1008.3 1007.7 1004.3 1007.6 1005.9 1011.2 1009.8 1011.0 1003.2 1001.5 DAY 31 1 4 30 28 15 8 29 4 30 28 27 MEAN QFF PRESSURE IN HPA 1022.2 1020.9 1013.6 1014.4 1011.6 1004.0 1003.5 1006.0 1011.7 1017.8 1018.4 1018.0 1013.5 MAX. QFF PRESSURE IN HPA 1031.9 1037.1 1023.8 1030.7 1023.9 1011.0 1008.5 1013.0 1019.9 1027.8 1027.0 1029.4 1037.1 DAY 10 7 25 8 4 7 27 21 21 16 5 29 MIN. QFF PRESSURE IN HPA 1010.0 1007.1 999.7 1005.1 1000.4 994.5 998.0 998.3 1004.9 1007.9 1009.7 1003.2 994.5 DAY 31 1 4 23 28 15 15 29 5 30 19 26 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 892.1 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 898.6 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 4 ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 886.6 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 11 ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1016.6 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1023.8 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 4 ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 1010.4 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 11 ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 1012.8 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1023.1 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 4 ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 1004.5 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 11 ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -3.4 -3.4 6.9 13.9 16.9 24.0 27.8 26.1 21.0 16.1 8.0 4.3 13.2 MINIMUN AIR TEMPERATURE (C) -7.1 -8.3 1.8 6.6 9.4 16.3 19.0 17.5 12.6 8.3 1.5 1.1 6.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 3 1 0 0 0 0 4 DAYS WITH MINIMUM TEMP. <=-4 24 22 0 0 0 0 0 0 0 0 2 0 48 DAYS WITH FREEZING MIN.<= 0 31 28 8 0 0 0 0 0 0 1 13 12 93 TEMPERATURE RECORDS LOWEST(C) -15.4 -15.0 -3.2 0.6 0.2 10.2 15.2 12.4 5.0 -0.2 -5.4 -1.8 -15.4 DAY 10 4 1 3 2 9 31 21 23 25 23 20 MAXIMUM AIR TEMPERATURE (C) 1.1 2.3 12.9 20.3 23.6 30.8 32.6 31.9 27.4 23.3 15.1 8.3 19.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 5 20 27 27 11 2 0 0 92 DAYS WITH MAXIMUM TEMP. <= 0 10 9 0 0 0 0 0 0 0 0 0 0 19 TEMPERATURE RECORDS HIGHEST(C) 8.2 9.7 21.6 27.0 32.8 36.8 35.8 35.8 35.2 32.8 22.6 15.0 36.8 DAY 2 28 26 18 31 23 13 9 2 7 30 11 DIF. BETWEEN (MAX.-MIN.) (C) 8.2 10.6 11.1 13.7 14.2 14.5 13.6 14.4 14.8 15.0 13.6 7.2 12.5 MEAN DAILY TEMP. (MDT) (C) -3.0 -3.0 7.3 13.5 16.5 23.5 25.8 24.7 20.0 15.8 8.3 4.7 12.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 7.2 89.2 143.9 117.3 27.8 2.0 0.0 0.0 387.5 HEATING DEG. DAYS(BASE 18 0C) 651.0 587.2 330.8 136.3 74.7 2.1 0.0 0.0 21.6 88.9 290.1 411.9 2594.5 DEWPOINT (MEAN C) -7.5 -7.6 0.7 2.8 4.8 7.7 12.5 9.2 5.6 4.1 -1.5 0.4 2.6 MIXING RATIO (G/KG) 2.53 2.53 4.62 5.36 6.49 7.82 10.88 8.75 7.05 6.08 4.01 4.49 5.88 VAPOUR PRESSURE (HPA) 3.62 3.62 6.56 7.63 9.19 11.02 15.26 12.31 9.95 8.66 5.72 6.40 8.33 SATURATION DEF. (HPA) 1.35 1.39 3.88 9.18 11.34 20.32 23.03 22.75 16.38 11.27 5.75 2.12 10.73 RELATIVE HUMIDITY (MEAN %) 75 75 69 52 50 40 43 39 43 51 55 78 56 RELATIVE HUMIDITY (MAX. %) 86 88 88 78 73 63 68 62 64 72 76 91 76 RELATIVE HUMIDITY (MIN. %) 63 59 48 31 29 23 30 24 30 34 34 61 39 RELATIVE HUMIDITY (MEAN% 03UTC) 82 84 86 74 65 57 66 62 60 69 72 86 72 RELATIVE HUMIDITY (MEAN% 09UTC) 69 65 57 39 34 28 33 30 36 40 41 68 45 RELATIVE HUMIDITY (MEAN% 15UTC) 76 76 65 46 42 32 39 31 38 48 50 79 52 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 56.4 13.2 41.3 25.4 5.1 1.1 3.2 2.1 1.0 7.5 2.1 82.2 240.6 DAYS WITH PRECIPITATION >=10 1 0 1 1 0 0 0 0 0 0 0 3 6 DAYS WITH PRECIPITATION >= 5 2 1 3 2 0 0 0 0 0 0 0 5 13 DAYS WITH PRECIPITATION >= 1 7 4 6 4 2 1 1 2 0 2 1 10 40 DAYS WITH PRECIPITATION 17 11 11 5 4 3 3 3 2 4 5 18 86 GREATEST DAILY PRECIPITATION 33.0 5.3 11.1 17.0 3.0 1.0 3.0 1.0 0.6 3.9 1.0 28.0 33.0 DAY 25 24 30 29 8 11 20 5 19 29 1 5 DAY WITH THUNDER STORM 0 0 0 0 1 1 1 1 0 0 2 0 6 DAYS WITH SNOW OR SLEET 17 11 4 0 0 0 0 0 0 0 0 5 37 DAYS WITH DUST 0 0 0 2 1 3 3 4 1 1 1 0 16 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 12.3 12.8 11.7 13.8 15.3 14.7 14.3 13.4 12.1 10.6 12.6 11.7 13.1 PREVAILING WIND PERCENT 24.6 23.0 34.0 32.8 33.2 42.8 43.9 29.7 43.1 30.6 17.6 14.3 30.4 CALMS PERCENT OF WIND 67.7 69.4 50.2 43.9 45.6 36.8 23.9 44.2 47.9 60.0 66.7 74.7 53.3 NO. OF WIND OBSERVATION 195 196 209 198 217 201 155 172 188 170 210 217 2328 VECTOR WIND DIRECTION (MEAN) 270 274 278 288 282 283 299 291 278 274 248 251 281 VECTOR WIND MAGNITUDE(KNOTS) 2.7 2.8 4.3 5.2 5.4 6.4 6.1 4.0 5.4 3.1 2.2 1.8 4.0 WIND STEADINESES (MEAN %) 65.9 73.7 79.6 80.0 81.8 80.0 64.2 64.5 91.5 79.5 56.4 58.1 71.4 WIND SPEED (MEAN KNOTS) 4.1 3.8 5.4 6.5 6.6 8.0 9.5 6.2 5.9 3.9 3.9 3.1 5.6 FASTEST WIND DIRECTION 270 270 280 280 270 290 280 280 270 280 270 150 270 FASTEST WIND SPEED (KNOTS) 39 29 31 39 29 31 31 31 39 25 43 29 43 DAY 6 19 11 29 8 5 8 10 19 9 20 10 DAYS WITH SKY CLEAR (0-2)/8 10 15 8 16 15 21 23 24 23 21 16 11 203 DAYS WITH P.CLOUDY (3-6)/8 7 6 12 11 12 7 7 7 5 6 13 7 100 DAYS WITH CLOUDY (7-8)/8 14 7 11 3 4 2 1 0 2 4 1 13 62 DAYS WITH VISIBILITY =< 2 KM 11 6 2 0 0 0 0 0 1 0 1 3 24 DURATION OF SUNSHINE HOURS 123.9 191.4 185.6 273.6 304.5 311.2 312.4 332.6 270.5 244.0 210.9 122.9 2883.5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 892.9 895.2 889.7 892.8 892.0 888.7 889.0 889.2 890.4 894.9 894.5 892.3 891.8 MAX. QFE PRESSURE IN HPA 903.6 904.1 897.1 898.0 897.8 893.8 896.0 896.1 901.4 903.8 902.5 897.6 904.1 DAY-HOUR 22- 6 8- 6 8- 6 11- 6 21- 6 2- 6 10- 3 19- 3 23- 6 24- 6 8- 6 18-18 MIN. QFE PRESSURE IN HPA 881.2 883.1 878.1 887.0 883.7 882.1 883.2 880.9 884.2 884.9 887.5 883.6 878.1 DAY-HOUR 17- 9 23- 3 30- 6 14-12 7- 0 10-15 6-15 1-15 12-12 2- 9 25- 0 5- 3 MEAN QNH PRESSURE IN HPA 1017.5 1020.1 1013.9 1017.3 1016.5 1012.8 1013.1 1013.3 1014.6 1019.7 1019.2 1016.8 1016.2 MAX. QNH PRESSURE IN HPA 1029.3 1029.9 1022.1 1023.1 1022.9 1018.4 1020.9 1021.0 1026.9 1029.6 1028.1 1022.7 1029.9 DAY-HOUR 22- 6 8- 6 8- 6 11- 6 21- 6 2- 6 10- 3 19- 3 23- 6 24- 6 8- 6 18-18 MIN. QNH PRESSURE IN HPA 1004.4 1006.6 1001.0 1010.9 1007.2 1005.4 1006.7 1004.1 1007.8 1008.6 1011.4 1007.1 1001.0 DAY-HOUR 17- 9 23- 3 30- 6 14-12 7- 0 10-15 6-15 1-15 12-12 2- 9 25- 0 5- 3 MEAN QFF PRESSURE IN HPA 1023.8 1026.1 1014.3 1014.7 1012.6 1005.8 ****** ****** 1008.0 ****** 1019.7 1018.6 ****** MAX. QFF PRESSURE IN HPA 1036.6 1039.0 1023.8 1022.4 1022.8 1014.7 ****** ****** 1025.1 ****** 1031.6 1025.8 ****** DAY-HOUR 28- 6 4- 3 8- 6 3- 3 1- 6 2- 3 **-** **-** 23- 3 **-** 8- 6 18-18 MIN. QFF PRESSURE IN HPA 1009.6 1008.4 999.7 1005.6 1001.1 997.8 ****** ****** 1000.4 ****** 1008.9 1008.1 ****** DAY-HOUR 17- 3 23- 3 28-12 29- 0 7- 0 10-15 **-** **-** 12-12 **-** 20- 0 5- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 893.1 894.6 889.1 892.3 892.1 888.9 ****** ****** 888.8 ****** 894.5 892.0 ****** MAX. QFE PRESSURE IN HPA 903.3 902.2 895.0 896.4 896.9 892.7 ****** ****** 893.4 ****** 900.5 895.9 ****** DAY 22 4 8 5 21 2 ** ** 16 ** 8 28 MIN. QFE PRESSURE IN HPA 885.5 883.7 878.2 887.9 883.7 883.5 ****** ****** 884.8 ****** 887.5 884.2 ****** DAY 3 23 30 29 7 11 ** ** 14 ** 25 5 MEAN QNH PRESSURE IN HPA 1017.6 1019.4 1013.2 1016.8 1016.6 1012.9 ****** ****** 1012.9 ****** 1019.2 1016.4 ****** MAX. QNH PRESSURE IN HPA 1029.0 1027.8 1019.8 1021.3 1021.9 1017.2 ****** ****** 1018.0 ****** 1025.9 1020.8 ****** DAY 22 4 8 5 21 2 ** ** 16 ** 8 28 MIN. QNH PRESSURE IN HPA 1009.2 1007.2 1001.1 1011.9 1007.2 1007.0 ****** ****** 1008.4 ****** 1011.4 1007.8 ****** DAY 3 23 30 29 7 11 ** ** 14 ** 25 5 MEAN QFF PRESSURE IN HPA 1023.2 1024.9 1013.3 1013.9 1012.7 1005.9 ****** ****** 1005.8 ****** 1019.0 1017.7 ****** MAX. QFF PRESSURE IN HPA 1034.1 1036.7 1021.5 1020.6 1021.6 1013.5 ****** ****** 1011.8 ****** 1028.9 1023.0 ****** DAY 28 4 12 2 1 2 ** ** 16 ** 8 19 MIN. QFF PRESSURE IN HPA 1011.6 1008.5 1000.2 1005.6 1001.1 998.9 ****** ****** 1001.1 ****** 1008.9 1008.8 ****** DAY 3 23 16 29 7 11 ** ** 12 ** 20 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 892.8 895.1 890.0 893.3 892.8 889.7 890.1 890.0 891.5 895.3 894.9 892.3 892.3 MAX. QFE PRESSURE IN HPA 903.0 902.9 895.7 897.5 897.1 893.6 896.0 896.1 900.9 902.7 901.6 895.9 903.0 DAY 22 8 8 11 21 2 10 19 23 24 8 28 MIN. QFE PRESSURE IN HPA 882.5 883.1 878.2 888.5 884.6 884.0 885.9 884.0 885.1 885.8 888.2 883.6 878.2 DAY 17 23 30 29 7 11 7 1 14 2 25 5 MEAN QNH PRESSURE IN HPA 1017.3 1019.8 1014.2 1017.9 1017.4 1013.8 1014.3 1014.2 1015.9 1020.1 1019.7 1016.8 1016.8 MAX. QNH PRESSURE IN HPA 1028.7 1028.6 1020.6 1022.6 1022.1 1018.2 1020.9 1021.0 1026.3 1028.3 1027.1 1020.8 1028.7 DAY 22 8 8 11 21 2 10 19 23 24 8 28 MIN. QNH PRESSURE IN HPA 1005.9 1006.6 1001.1 1012.6 1008.2 1007.6 1009.7 1007.6 1008.8 1009.6 1012.2 1007.1 1001.1 DAY 17 23 30 29 7 11 7 1 14 2 25 5 MEAN QFF PRESSURE IN HPA 1023.4 1026.5 1015.3 1015.9 1013.6 1006.7 1006.0 1006.7 1010.9 1017.6 1020.8 1018.8 1015.2 MAX. QFF PRESSURE IN HPA 1036.2 1039.0 1022.8 1022.4 1022.5 1014.7 1012.6 1016.1 1025.1 1029.4 1031.1 1023.9 1039.0 DAY 28 4 8 3 1 2 10 19 23 24 8 29 MIN. QFF PRESSURE IN HPA 1009.6 1008.4 1000.1 1006.9 1002.4 999.1 999.9 998.8 1002.6 1006.0 1011.5 1008.1 998.8 DAY 17 23 16 29 7 11 7 2 12 2 20 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 893.9 896.0 890.8 893.9 893.0 889.8 890.0 890.4 892.1 896.0 895.6 893.3 892.9 MAX. QFE PRESSURE IN HPA 903.6 904.1 897.1 898.0 897.8 893.8 894.5 896.1 901.4 903.8 902.5 897.2 904.1 DAY 22 8 8 11 21 2 10 19 23 24 8 18 MIN. QFE PRESSURE IN HPA 882.6 883.8 878.1 888.8 886.3 884.9 885.7 883.9 886.8 886.4 890.2 884.2 878.1 DAY 17 23 30 14 7 10 6 1 12 2 20 5 MEAN QNH PRESSURE IN HPA 1018.6 1020.9 1015.1 1018.5 1017.5 1014.0 1014.3 1014.7 1016.6 1020.9 1020.4 1017.9 1017.4 MAX. QNH PRESSURE IN HPA 1029.3 1029.9 1022.1 1023.1 1022.9 1018.4 1019.2 1021.0 1026.9 1029.6 1028.1 1022.2 1029.9 DAY 22 8 8 11 21 2 10 19 23 24 8 18 MIN. QNH PRESSURE IN HPA 1006.0 1007.3 1001.0 1012.9 1010.1 1008.6 1009.4 1007.4 1010.7 1010.2 1014.4 1007.8 1001.0 DAY 17 23 30 14 7 10 6 1 12 2 20 5 MEAN QFF PRESSURE IN HPA 1025.3 1027.1 1015.3 1015.5 1013.7 1007.1 ****** ****** 1008.4 ****** 1020.9 1019.7 ****** MAX. QFF PRESSURE IN HPA 1036.6 1038.2 1023.8 1022.1 1022.8 1014.1 ****** ****** 1020.1 ****** 1031.6 1025.5 ****** DAY 28 4 8 3 1 2 ** ** 20 ** 8 18 MIN. QFF PRESSURE IN HPA 1013.0 1009.9 1000.6 1008.7 1003.6 1001.3 ****** ****** 1003.3 ****** 1012.7 1009.0 ****** DAY 3 23 16 14 7 11 ** ** 12 ** 16 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 892.7 895.4 890.0 892.9 891.9 888.6 888.9 889.2 890.8 894.5 894.1 892.2 891.8 MAX. QFE PRESSURE IN HPA 902.0 903.2 896.2 897.3 897.2 892.5 892.8 894.7 900.0 902.0 900.9 896.8 903.2 DAY 22 8 8 8 21 2 10 19 23 24 8 18 MIN. QFE PRESSURE IN HPA 881.2 883.8 879.7 887.7 885.6 883.5 884.5 882.5 885.5 884.9 888.9 885.4 879.7 DAY 17 23 16 14 7 10 6 1 12 2 16 5 MEAN QNH PRESSURE IN HPA 1017.2 1020.2 1014.3 1017.4 1016.4 1012.7 1013.1 1013.4 1015.1 1019.2 1018.8 1016.6 1016.2 MAX. QNH PRESSURE IN HPA 1027.6 1028.9 1021.1 1022.3 1022.2 1017.0 1017.3 1019.4 1025.3 1027.6 1026.3 1021.8 1028.9 DAY 22 8 8 8 21 2 10 19 23 24 8 18 MIN. QNH PRESSURE IN HPA 1004.4 1007.3 1002.8 1011.7 1009.3 1007.0 1008.1 1005.9 1009.2 1008.6 1013.0 1009.1 1002.8 DAY 17 23 16 14 7 10 6 1 12 2 16 5 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 892.2 894.8 889.0 891.9 891.1 887.6 888.0 888.1 889.7 893.6 893.4 891.7 890.9 MAX. QFE PRESSURE IN HPA 901.3 902.1 894.8 896.2 895.9 891.6 893.1 893.9 898.9 900.9 899.8 896.6 902.1 DAY 21 8 8 20 20 6 19 19 23 24 8 18 MIN. QFE PRESSURE IN HPA 882.2 885.1 878.9 887.0 885.4 882.4 883.5 881.3 884.2 884.9 887.8 885.6 878.9 DAY 17 1 28 14 31 10 6 1 12 2 15 8 MEAN QNH PRESSURE IN HPA 1016.7 1019.5 1013.1 1016.3 1015.4 1011.6 1012.0 1012.1 1013.9 1018.2 1018.1 1016.1 1015.2 MAX. QNH PRESSURE IN HPA 1026.8 1027.7 1019.6 1021.1 1020.8 1016.0 1017.7 1018.6 1024.1 1026.3 1025.1 1021.6 1027.7 DAY 21 8 8 20 20 6 19 19 23 24 8 18 MIN. QNH PRESSURE IN HPA 1005.6 1008.8 1001.9 1010.9 1009.1 1005.8 1007.0 1004.5 1007.8 1008.6 1011.8 1009.3 1001.9 DAY 17 1 28 14 31 10 6 1 12 2 15 8 MEAN QFF PRESSURE IN HPA 1023.1 1024.9 1012.6 1013.0 1011.4 1004.6 ****** ****** 1005.0 ****** 1017.7 1017.5 ****** MAX. QFF PRESSURE IN HPA 1033.2 1034.8 1022.2 1019.5 1020.9 1010.3 ****** ****** 1012.3 ****** 1026.9 1024.2 ****** DAY 28 3 12 2 1 6 ** ** 19 ** 8 18 MIN. QFF PRESSURE IN HPA 1011.9 1011.6 999.7 1006.6 1002.1 998.2 ****** ****** 1000.4 ****** 1009.7 1010.7 ****** DAY 2 23 28 14 31 23 ** ** 12 ** 15 8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 892.7 895.3 889.4 892.2 891.2 887.8 888.1 888.2 889.9 894.2 894.2 892.4 891.3 MAX. QFE PRESSURE IN HPA 902.7 902.1 895.2 896.1 895.9 891.4 892.5 894.0 898.8 901.5 900.7 897.2 902.7 DAY 21 3 8 9 20 1 19 19 23 23 7 18 MIN. QFE PRESSURE IN HPA 883.3 887.2 878.4 887.5 885.5 882.1 883.2 880.9 884.6 886.2 888.1 886.6 878.4 DAY 17 1 29 14 6 10 6 1 12 2 24 6 MEAN QNH PRESSURE IN HPA 1017.2 1020.1 1013.6 1016.7 1015.6 1011.8 1012.1 1012.2 1014.1 1018.9 1018.9 1016.9 1015.7 MAX. QNH PRESSURE IN HPA 1028.3 1027.7 1020.0 1021.0 1020.8 1015.8 1017.0 1018.7 1024.0 1027.0 1026.1 1022.2 1028.3 DAY 21 3 8 9 20 1 19 19 23 23 7 18 MIN. QNH PRESSURE IN HPA 1006.8 1011.1 1001.3 1011.4 1009.2 1005.4 1006.7 1004.1 1008.2 1010.0 1012.1 1010.4 1001.3 DAY 17 1 29 14 6 10 6 1 12 2 24 6 MEAN QFF PRESSURE IN HPA 1023.4 1026.6 1014.6 1014.6 1011.6 1004.6 1003.9 1004.8 1009.1 1016.4 1019.9 1019.0 1014.0 MAX. QFF PRESSURE IN HPA 1036.0 1037.5 1022.6 1020.9 1020.3 1012.3 1009.5 1013.9 1022.7 1027.6 1029.0 1025.5 1037.5 DAY 28 3 12 9 1 1 19 19 23 24 8 18 MIN. QFF PRESSURE IN HPA 1010.1 1013.8 1000.6 1007.7 1003.0 997.8 996.0 996.5 1001.4 1006.0 1011.8 1012.4 996.0 DAY 17 23 29 14 31 10 6 1 12 1 15 6 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 893.7 895.7 889.6 893.0 892.1 888.9 ****** ****** 888.9 ****** 894.8 892.6 ****** MAX. QFE PRESSURE IN HPA 903.5 902.7 896.0 896.6 896.9 892.5 ****** ****** 894.3 ****** 900.9 897.6 ****** DAY 21 3 7 20 20 1 ** ** 19 ** 7 18 MIN. QFE PRESSURE IN HPA 885.9 888.0 879.8 888.4 884.9 883.0 ****** ****** 884.9 ****** 888.1 886.8 ****** DAY 1 22 29 28 7 10 ** ** 13 ** 24 6 MEAN QNH PRESSURE IN HPA 1018.4 1020.5 1013.7 1017.5 1016.5 1013.0 ****** ****** 1013.0 ****** 1019.5 1017.1 ****** MAX. QNH PRESSURE IN HPA 1029.2 1028.3 1020.9 1021.6 1021.9 1017.0 ****** ****** 1019.0 ****** 1026.3 1022.7 ****** DAY 21 3 7 20 20 1 ** ** 19 ** 7 18 MIN. QNH PRESSURE IN HPA 1009.7 1012.0 1002.9 1012.4 1008.6 1006.4 ****** ****** 1008.6 ****** 1012.1 1010.7 ****** DAY 1 22 29 28 7 10 ** ** 13 ** 24 6 MEAN QFF PRESSURE IN HPA 1024.5 1026.6 1014.5 1014.9 1012.5 1006.1 ****** ****** 1006.5 ****** 1019.9 1018.9 ****** MAX. QFF PRESSURE IN HPA 1035.7 1037.6 1023.1 1021.9 1020.4 1013.6 ****** ****** 1015.9 ****** 1028.9 1025.8 ****** DAY 28 3 12 1 1 1 ** ** 19 ** 8 18 MIN. QFF PRESSURE IN HPA 1014.0 1014.6 1002.3 1007.7 1002.6 998.8 ****** ****** 1001.7 ****** 1011.2 1012.2 ****** DAY 2 22 27 28 7 10 ** ** 13 ** 15 8 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -0.3 1.4 6.0 11.6 18.4 24.3 25.2 24.6 22.4 13.2 9.0 0.7 13.0 MINIMUN AIR TEMPERATURE (C) -3.5 -2.6 0.4 5.6 11.5 16.4 18.3 18.0 14.0 6.5 2.5 -4.3 6.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 5 0 0 0 0 0 5 DAYS WITH MINIMUM TEMP. <=-4 14 8 6 0 0 0 0 0 0 0 0 12 40 DAYS WITH FREEZING MIN.<= 0 27 24 13 1 0 0 0 0 0 4 12 23 104 TEMPERATURE RECORDS LOWEST(C) -9.2 -9.6 -7.0 -0.2 8.0 11.4 12.0 14.8 9.0 -3.0 -2.4 -25.0 -25.0 DAY 11 7 21 8 15 8 14 31 27 16 18 30 MAXIMUM AIR TEMPERATURE (C) 3.9 6.3 12.7 18.0 25.7 31.5 32.3 31.6 30.7 20.5 17.1 6.6 19.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 5 19 25 21 19 0 0 0 91 DAYS WITH MAXIMUM TEMP. <= 0 7 1 1 0 0 0 0 0 0 0 0 7 16 TEMPERATURE RECORDS HIGHEST(C) 13.0 15.4 20.2 32.6 34.4 38.4 38.0 38.0 38.0 27.6 24.2 20.0 38.4 DAY 23 19 13 29 12 27 29 7 14 1 7 5 DIF. BETWEEN (MAX.-MIN.) (C) 7.4 8.9 12.3 12.4 14.2 15.1 14.0 13.6 16.7 14.0 14.6 10.9 12.8 MEAN DAILY TEMP. (MDT) (C) 0.2 1.8 6.6 11.8 18.6 24.0 25.3 24.8 22.4 13.5 9.8 1.2 13.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.3 9.5 93.5 131.9 117.5 52.5 0.0 0.0 0.0 406.3 HEATING DEG. DAYS(BASE 18 0C) 551.5 452.4 354.5 193.4 29.1 0.0 0.0 0.0 0.6 145.0 246.2 522.2 2495.0 DEWPOINT (MEAN C) -4.1 -3.1 -1.1 2.9 6.3 8.7 11.9 11.3 7.9 3.1 0.4 -5.0 3.3 MIXING RATIO (G/KG) 3.25 3.50 4.09 5.46 6.91 8.29 10.54 9.91 8.04 5.70 4.53 3.14 6.11 VAPOUR PRESSURE (HPA) 4.64 4.98 5.84 7.74 9.77 11.67 14.76 13.94 11.35 8.11 6.47 4.48 8.65 SATURATION DEF. (HPA) 1.51 2.12 4.28 6.94 12.52 20.13 18.56 18.18 17.23 8.00 5.93 2.91 9.86 RELATIVE HUMIDITY (MEAN %) 77 75 65 61 50 42 48 49 45 56 59 71 58 RELATIVE HUMIDITY (MAX. %) 89 90 86 86 72 63 69 72 74 80 84 85 79 RELATIVE HUMIDITY (MIN. %) 62 55 44 38 33 26 32 29 24 34 37 55 39 RELATIVE HUMIDITY (MEAN% 03UTC) 84 87 83 80 66 57 65 67 67 78 79 82 75 RELATIVE HUMIDITY (MEAN% 09UTC) 69 65 50 47 37 29 36 34 29 40 43 61 45 RELATIVE HUMIDITY (MEAN% 15UTC) 78 72 58 53 41 33 40 40 36 50 52 68 52 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 19.4 18.6 17.6 20.1 3.1 0.0 0.9 0.0 0.0 12.4 13.1 29.1 134.3 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 1 1 2 DAYS WITH PRECIPITATION >= 5 0 1 1 1 0 0 0 0 0 1 1 2 7 DAYS WITH PRECIPITATION >= 1 6 4 6 4 1 0 0 0 0 3 2 6 32 DAYS WITH PRECIPITATION 14 14 15 11 2 0 2 0 0 6 5 12 81 GREATEST DAILY PRECIPITATION 4.0 8.1 5.9 9.4 2.9 0.0 0.5 0.0 0.0 7.0 10.0 10.8 10.8 DAY 7 26 15 3 13 ** 20 ** ** 18 13 28 DAY WITH THUNDER STORM 0 0 0 1 2 0 1 0 0 0 0 0 4 DAYS WITH SNOW OR SLEET 14 14 5 0 0 0 0 0 0 0 0 8 41 DAYS WITH DUST 0 0 3 3 3 6 4 7 2 1 0 1 30 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 11.3 11.5 14.5 14.1 16.0 15.9 15.4 16.1 15.6 13.3 11.1 15.5 14.7 PREVAILING WIND PERCENT 18.0 28.6 36.9 41.4 46.1 52.9 50.2 53.5 34.8 33.6 12.9 9.2 34.9 CALMS PERCENT OF WIND 69.6 55.6 47.9 47.6 35.5 34.3 25.8 28.6 51.0 62.2 83.3 83.9 52.1 NO. OF WIND OBSERVATION 217 196 217 210 217 210 217 217 210 217 210 217 2555 VECTOR WIND DIRECTION (MEAN) 268 255 274 278 281 279 287 283 279 274 273 267 278 VECTOR WIND MAGNITUDE(KNOTS) 1.8 2.9 5.4 6.3 6.7 8.1 7.9 8.0 5.2 4.6 1.5 1.5 4.9 WIND STEADINESES (MEAN %) 52.9 55.8 76.1 90.0 72.8 84.4 77.5 76.9 75.4 93.9 83.3 75.0 75.4 WIND SPEED (MEAN KNOTS) 3.4 5.2 7.1 7.0 9.2 9.6 10.2 10.4 6.9 4.9 1.8 2.0 6.5 FASTEST WIND DIRECTION 270 280 280 280 280 280 280 280 280 280 270 270 280 FASTEST WIND SPEED (KNOTS) 39 29 41 39 58 39 35 39 39 37 43 31 58 DAY 24 20 16 2 3 22 6 25 21 26 1 26 DAYS WITH SKY CLEAR (0-2)/8 7 8 13 7 17 23 24 21 29 20 20 9 198 DAYS WITH P.CLOUDY (3-6)/8 9 9 8 11 8 7 3 10 1 9 7 13 95 DAYS WITH CLOUDY (7-8)/8 15 11 10 12 6 0 4 0 0 2 3 9 72 DAYS WITH VISIBILITY =< 2 KM 7 7 6 1 0 0 0 0 1 0 3 11 36 DURATION OF SUNSHINE HOURS 130.7 139.2 192.0 198.4 302.6 328.5 315.3 322.9 295.6 239.6 228.7 137.5 2831.0 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 893.8 891.0 894.2 889.6 890.7 888.0 888.2 889.6 890.8 895.0 895.3 894.6 891.7 MAX. QFE PRESSURE IN HPA 902.1 901.8 905.8 897.9 899.3 893.9 892.9 894.8 897.0 905.6 905.0 902.9 905.8 DAY-HOUR 26- 6 8- 6 17- 6 3- 6 16- 6 7- 6 17- 3 29- 6 16- 6 15- 6 22- 6 29- 6 MIN. QFE PRESSURE IN HPA 884.8 875.9 886.5 880.0 879.2 879.9 882.8 882.6 884.8 887.7 885.3 885.6 875.9 DAY-HOUR 23-12 16- 0 24-12 15-12 13- 9 27-12 27-15 7-12 5-12 31-18 1- 0 25-12 MEAN QNH PRESSURE IN HPA 1018.4 1015.3 1018.9 1013.7 1015.0 1012.0 1012.2 1013.8 1015.1 1019.7 1020.2 1019.3 1016.1 MAX. QNH PRESSURE IN HPA 1027.7 1027.3 1031.8 1023.0 1024.6 1018.6 1017.4 1019.6 1022.0 1031.6 1030.9 1028.6 1031.8 DAY-HOUR 26- 6 8- 6 17- 6 3- 6 16- 6 7- 6 17- 3 29- 6 16- 6 15- 6 22- 6 29- 6 MIN. QNH PRESSURE IN HPA 1008.4 998.5 1010.3 1003.1 1002.2 1003.0 1006.2 1006.0 1008.4 1011.7 1009.0 1009.3 998.5 DAY-HOUR 23-12 16- 0 24-12 15-12 13- 9 27-12 27-15 7-12 5-12 31-18 1- 0 25-12 MEAN QFF PRESSURE IN HPA 1022.6 1018.7 1020.1 1012.1 1010.4 1004.7 1004.3 1006.3 1008.7 1017.6 1020.1 1023.2 1014.1 MAX. QFF PRESSURE IN HPA 1033.9 1033.0 1037.8 1024.7 1022.2 1014.2 1010.7 1013.0 1015.2 1033.9 1031.9 1038.7 1038.7 DAY-HOUR 27- 6 7- 6 17- 6 3- 6 16- 6 7- 6 31-18 29- 6 27-15 15-18 14- 6 30-15 MIN. QFF PRESSURE IN HPA 1009.1 997.9 1008.5 1000.1 995.1 993.6 995.3 997.0 1000.6 1007.2 1006.1 1010.6 993.6 DAY-HOUR 23-12 16- 0 14-12 29-12 12-12 27-12 27-15 7-12 1-12 1-12 1- 0 18- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 893.5 890.7 893.9 889.2 890.8 888.1 888.3 889.9 891.0 895.1 895.1 894.3 891.7 MAX. QFE PRESSURE IN HPA 901.0 900.8 904.5 895.9 897.9 893.5 892.0 893.3 895.6 904.6 903.6 902.0 904.6 DAY 27 8 17 24 16 5 17 29 16 16 14 29 MIN. QFE PRESSURE IN HPA 885.2 875.9 887.4 881.9 880.6 881.7 884.6 885.7 886.8 889.5 885.3 887.6 875.9 DAY 18 16 25 16 13 27 28 7 1 26 1 18 MEAN QNH PRESSURE IN HPA 1018.1 1015.0 1018.6 1013.3 1015.2 1012.2 1012.3 1014.2 1015.3 1019.8 1019.9 1019.0 1016.1 MAX. QNH PRESSURE IN HPA 1026.5 1026.2 1030.3 1020.8 1023.0 1018.1 1016.4 1017.9 1020.5 1030.5 1029.3 1027.6 1030.5 DAY 27 8 17 24 16 5 17 29 16 16 14 29 MIN. QNH PRESSURE IN HPA 1008.9 998.5 1011.3 1005.2 1003.8 1005.0 1008.2 1009.4 1010.7 1013.7 1009.0 1011.6 998.5 DAY 18 16 25 16 13 27 28 7 1 26 1 18 MEAN QFF PRESSURE IN HPA 1021.9 1017.9 1019.3 1011.4 1010.4 1004.7 1004.3 1006.3 1008.4 1017.1 1019.0 1022.2 1013.6 MAX. QFF PRESSURE IN HPA 1032.9 1031.5 1035.7 1021.5 1020.1 1012.8 1007.9 1011.0 1013.6 1033.2 1030.8 1035.4 1035.7 DAY 27 8 17 24 16 7 1 30 24 16 14 29 MIN. QFF PRESSURE IN HPA 1011.2 997.9 1008.8 1001.4 996.3 995.4 998.2 1000.2 1003.0 1009.3 1006.1 1010.6 995.4 DAY 18 16 25 16 13 27 28 8 14 26 1 18 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 893.8 891.1 894.5 889.9 891.6 889.1 889.1 890.8 891.7 895.5 895.7 894.7 892.3 MAX. QFE PRESSURE IN HPA 900.8 901.0 905.2 896.4 898.9 893.8 892.9 894.7 896.7 904.7 903.8 902.6 905.2 DAY 27 8 17 24 16 5 17 29 16 19 14 29 MIN. QFE PRESSURE IN HPA 886.4 877.2 888.6 883.2 881.0 882.4 886.3 885.9 887.7 889.1 885.9 888.3 877.2 DAY 5 16 5 16 13 27 27 7 5 26 1 18 MEAN QNH PRESSURE IN HPA 1018.4 1015.5 1019.3 1014.1 1016.0 1013.2 1013.2 1015.1 1016.1 1020.3 1020.5 1019.5 1016.8 MAX. QNH PRESSURE IN HPA 1026.2 1026.5 1031.1 1021.3 1024.1 1018.4 1017.4 1019.4 1021.7 1030.6 1029.6 1028.2 1031.1 DAY 27 8 17 24 16 5 17 29 16 19 14 29 MIN. QNH PRESSURE IN HPA 1010.2 1000.0 1012.7 1006.7 1004.2 1005.8 1010.1 1009.7 1011.7 1013.2 1009.7 1012.3 1000.0 DAY 5 16 5 16 13 27 27 7 5 26 1 18 MEAN QFF PRESSURE IN HPA 1022.9 1019.3 1021.0 1012.7 1011.5 1006.0 1005.4 1007.9 1010.3 1018.8 1021.1 1023.8 1015.1 MAX. QFF PRESSURE IN HPA 1033.7 1032.8 1037.0 1022.8 1021.7 1013.7 1008.7 1013.0 1015.2 1033.4 1031.6 1037.1 1037.1 DAY 27 8 17 3 16 7 17 29 24 16 14 30 MIN. QFF PRESSURE IN HPA 1011.6 999.3 1011.6 1004.4 997.5 996.1 999.3 1001.4 1005.2 1010.2 1007.7 1014.0 996.1 DAY 5 16 25 16 13 27 28 7 14 26 1 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 894.9 892.1 895.4 890.5 891.7 889.3 889.3 891.0 892.3 896.1 896.5 895.5 892.9 MAX. QFE PRESSURE IN HPA 902.1 901.8 905.8 897.9 899.3 893.9 892.9 894.8 897.0 905.6 905.0 902.9 905.8 DAY 26 8 17 3 16 7 17 29 16 15 22 29 MIN. QFE PRESSURE IN HPA 887.6 879.0 890.0 884.1 880.8 882.2 886.4 885.9 887.9 889.6 886.8 888.5 879.0 DAY 5 16 1 16 13 27 27 7 5 26 1 25 MEAN QNH PRESSURE IN HPA 1019.7 1016.5 1020.2 1014.7 1016.1 1013.4 1013.4 1015.3 1016.7 1021.0 1021.5 1020.4 1017.4 MAX. QNH PRESSURE IN HPA 1027.7 1027.3 1031.8 1023.0 1024.6 1018.6 1017.4 1019.6 1022.0 1031.6 1030.9 1028.6 1031.8 DAY 26 8 17 3 16 7 17 29 16 15 22 29 MIN. QNH PRESSURE IN HPA 1011.6 1002.0 1014.2 1007.7 1004.0 1005.6 1010.2 1009.7 1011.9 1013.8 1010.7 1012.6 1002.0 DAY 5 16 1 16 13 27 27 7 5 26 1 25 MEAN QFF PRESSURE IN HPA 1024.0 1020.0 1021.5 1013.2 1011.6 1006.1 1005.6 1007.9 1010.2 1018.8 1021.4 1024.3 1015.4 MAX. QFF PRESSURE IN HPA 1033.9 1033.0 1037.8 1024.7 1022.2 1014.2 1009.9 1013.0 1015.0 1032.8 1031.9 1037.6 1037.8 DAY 27 7 17 3 16 7 31 29 26 16 14 30 MIN. QFF PRESSURE IN HPA 1012.3 1001.5 1011.8 1004.1 999.4 995.9 1000.6 1000.7 1004.3 1010.1 1008.1 1014.7 995.9 DAY 5 16 14 29 13 27 27 7 14 26 1 18 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 893.6 891.0 894.3 889.5 890.4 888.0 888.2 889.5 890.7 894.6 895.1 894.4 891.6 MAX. QFE PRESSURE IN HPA 901.6 900.4 904.8 897.3 897.6 891.7 891.6 893.4 895.2 904.8 903.7 902.2 904.8 DAY 26 8 17 3 15 7 17 29 16 15 22 29 MIN. QFE PRESSURE IN HPA 885.8 879.8 888.2 882.3 879.2 880.6 884.5 884.0 886.3 888.1 886.0 886.5 879.2 DAY 23 16 14 15 13 27 27 7 5 14 1 25 MEAN QNH PRESSURE IN HPA 1018.3 1015.4 1019.0 1013.7 1014.7 1012.0 1012.2 1013.6 1014.9 1019.4 1019.9 1019.1 1016.0 MAX. QNH PRESSURE IN HPA 1027.1 1025.8 1030.7 1022.3 1022.7 1016.1 1016.0 1018.0 1020.0 1030.7 1029.5 1027.8 1030.7 DAY 26 8 17 3 15 7 17 29 16 15 22 29 MIN. QNH PRESSURE IN HPA 1009.6 1002.9 1012.2 1005.7 1002.2 1003.8 1008.1 1007.6 1010.1 1012.1 1009.8 1010.3 1002.2 DAY 23 16 14 15 13 27 27 7 5 14 1 25 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 893.1 890.2 893.2 888.7 889.4 886.8 887.2 888.1 889.4 893.9 894.4 893.9 890.7 MAX. QFE PRESSURE IN HPA 900.9 898.8 903.2 895.5 896.9 891.1 891.6 891.7 894.4 904.9 902.9 901.5 904.9 DAY 26 7 17 3 15 6 31 2 27 15 22 28 MIN. QFE PRESSURE IN HPA 884.8 880.3 886.5 880.0 879.9 879.9 883.5 882.6 884.8 888.2 887.8 885.6 879.9 DAY 23 16 24 15 12 27 27 7 5 31 1 25 MEAN QNH PRESSURE IN HPA 1017.6 1014.5 1017.7 1012.8 1013.5 1010.7 1011.1 1012.1 1013.5 1018.5 1019.1 1018.5 1015.0 MAX. QNH PRESSURE IN HPA 1026.3 1024.0 1028.9 1020.3 1021.9 1015.4 1016.0 1016.1 1019.1 1030.8 1028.6 1027.0 1030.8 DAY 26 7 17 3 15 6 31 2 27 15 22 28 MIN. QNH PRESSURE IN HPA 1008.4 1003.4 1010.3 1003.1 1003.0 1003.0 1007.0 1006.0 1008.4 1012.2 1011.8 1009.3 1003.0 DAY 23 16 24 15 12 27 27 7 5 31 1 25 MEAN QFF PRESSURE IN HPA 1021.4 1017.3 1018.4 1010.9 1008.6 1003.2 1003.0 1004.2 1006.7 1015.8 1018.2 1021.8 1012.5 MAX. QFF PRESSURE IN HPA 1031.6 1029.2 1034.4 1021.2 1019.4 1010.2 1009.7 1009.3 1014.5 1031.6 1028.0 1034.8 1034.8 DAY 26 7 17 3 15 6 31 29 27 15 16 29 MIN. QFF PRESSURE IN HPA 1009.1 1003.3 1008.5 1000.1 995.1 993.6 996.1 997.0 1000.6 1007.2 1009.3 1012.3 993.6 DAY 23 16 14 29 12 27 27 7 1 1 8 17 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 893.6 890.8 893.7 889.2 889.7 886.9 887.2 888.3 889.6 894.4 895.1 894.5 891.1 MAX. QFE PRESSURE IN HPA 901.4 899.8 903.4 895.4 897.1 891.7 890.9 891.7 894.7 905.4 903.4 901.8 905.4 DAY 26 7 9 23 15 6 16 2 27 15 22 28 MIN. QFE PRESSURE IN HPA 885.2 880.7 886.5 881.0 879.3 881.2 882.8 883.2 885.1 888.4 889.2 885.6 879.3 DAY 23 15 24 15 12 26 27 7 5 31 8 25 MEAN QNH PRESSURE IN HPA 1018.2 1015.1 1018.3 1013.3 1013.9 1010.8 1011.1 1012.3 1013.8 1019.1 1019.9 1019.2 1015.4 MAX. QNH PRESSURE IN HPA 1026.9 1025.1 1029.1 1020.2 1022.1 1016.1 1015.2 1016.1 1019.4 1031.3 1029.1 1027.3 1031.3 DAY 26 7 9 23 15 6 16 2 27 15 22 28 MIN. QNH PRESSURE IN HPA 1008.9 1003.9 1010.3 1004.2 1002.3 1004.4 1006.2 1006.7 1008.8 1012.4 1013.3 1009.3 1002.3 DAY 23 15 24 15 12 26 27 7 5 31 8 25 MEAN QFF PRESSURE IN HPA 1022.7 1018.8 1020.0 1011.9 1009.4 1003.6 1003.3 1005.0 1007.9 1017.6 1020.4 1023.7 1013.7 MAX. QFF PRESSURE IN HPA 1033.0 1031.9 1034.2 1021.0 1019.8 1011.6 1009.3 1009.7 1015.2 1033.1 1029.2 1038.7 1038.7 DAY 26 7 17 3 15 6 31 29 27 15 16 30 MIN. QFF PRESSURE IN HPA 1010.5 1003.2 1009.4 1002.4 995.2 995.7 995.3 998.1 1002.0 1009.0 1012.0 1013.8 995.2 DAY 23 15 14 15 12 26 27 7 5 1 9 25 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 894.0 891.1 894.5 890.0 891.1 888.1 888.4 889.8 890.9 895.3 895.6 894.9 892.0 MAX. QFE PRESSURE IN HPA 901.5 900.4 904.4 896.4 898.2 893.4 892.1 893.9 895.5 905.4 903.4 902.5 905.4 DAY 26 7 9 23 15 4 16 29 23 15 22 28 MIN. QFE PRESSURE IN HPA 885.6 878.4 886.8 882.2 882.2 882.2 884.3 886.0 886.2 887.7 889.4 887.1 878.4 DAY 17 15 24 15 12 26 27 7 5 31 8 25 MEAN QNH PRESSURE IN HPA 1018.7 1015.4 1019.3 1014.3 1015.5 1012.2 1012.4 1014.0 1015.3 1020.1 1020.4 1019.7 1016.4 MAX. QNH PRESSURE IN HPA 1027.0 1025.8 1030.2 1021.3 1023.3 1018.0 1016.6 1018.6 1020.3 1031.3 1029.1 1028.1 1031.3 DAY 26 7 9 23 15 4 16 29 23 15 22 28 MIN. QNH PRESSURE IN HPA 1009.3 1001.3 1010.7 1005.6 1005.6 1005.6 1007.9 1009.8 1010.0 1011.7 1013.6 1011.0 1001.3 DAY 17 15 24 15 12 26 27 7 5 31 8 25 MEAN QFF PRESSURE IN HPA 1023.0 1018.8 1020.5 1012.7 1010.8 1004.9 1004.6 1006.4 1008.7 1017.8 1020.4 1023.7 1014.4 MAX. QFF PRESSURE IN HPA 1033.6 1032.5 1034.4 1021.8 1020.9 1012.4 1010.7 1012.1 1014.0 1033.9 1029.7 1037.7 1037.7 DAY 26 7 16 23 15 7 31 29 23 15 23 30 MIN. QFF PRESSURE IN HPA 1012.2 1000.4 1009.4 1003.2 998.9 996.7 997.9 1000.4 1002.7 1009.7 1011.0 1013.4 996.7 DAY 4 15 11 15 12 26 27 7 13 31 8 17 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -0.4 1.3 5.9 13.6 15.2 21.6 25.6 24.3 19.5 13.6 6.5 2.9 12.5 MINIMUN AIR TEMPERATURE (C) -4.4 -3.0 2.2 7.5 9.5 14.6 17.7 16.8 13.1 6.9 1.5 -1.3 6.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 2 1 0 0 0 0 3 DAYS WITH MINIMUM TEMP. <=-4 13 9 2 0 0 0 0 0 0 0 4 8 36 DAYS WITH FREEZING MIN.<= 0 27 19 8 0 0 0 0 0 0 0 12 21 87 TEMPERATURE RECORDS LOWEST(C) -15.6 -13.6 -7.6 0.6 4.0 10.0 13.0 9.4 4.8 1.4 -6.0 -7.6 -15.6 DAY 2 12 12 14 26 25 15 24 28 14 25 27 MAXIMUM AIR TEMPERATURE (C) 4.6 6.5 10.5 19.9 20.9 28.0 32.6 31.6 27.0 21.2 12.9 8.4 18.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 1 10 25 24 12 0 0 0 72 DAYS WITH MAXIMUM TEMP. <= 0 1 6 0 0 0 0 0 0 0 0 0 0 7 TEMPERATURE RECORDS HIGHEST(C) 12.6 18.6 20.4 28.6 33.4 35.0 39.5 35.8 36.4 25.7 21.5 18.0 39.5 DAY 31 27 30 26 30 27 7 17 2 27 1 1 DIF. BETWEEN (MAX.-MIN.) (C) 9.0 9.5 8.3 12.4 11.4 13.4 14.9 14.8 13.9 14.3 11.4 9.7 11.9 MEAN DAILY TEMP. (MDT) (C) 0.1 1.7 6.4 13.7 15.2 21.3 25.1 24.2 20.0 14.1 7.2 3.6 12.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 4.0 36.1 124.4 99.8 30.8 0.0 0.0 0.0 295.1 HEATING DEG. DAYS(BASE 18 0C) 537.4 455.4 360.9 134.0 102.8 2.3 0.0 0.0 29.3 122.4 323.5 447.5 2515.5 DEWPOINT (MEAN C) -3.5 -4.8 2.0 4.3 7.2 10.0 8.3 8.0 8.7 2.3 0.4 -2.8 3.3 MIXING RATIO (G/KG) 3.39 3.19 5.11 6.01 7.35 8.94 8.11 8.30 8.42 5.19 4.62 3.61 6.02 VAPOUR PRESSURE (HPA) 4.84 4.56 7.25 8.52 10.37 12.59 11.41 11.68 11.90 7.41 6.60 5.14 8.52 SATURATION DEF. (HPA) 1.30 2.72 2.48 8.22 7.96 14.52 23.05 20.09 12.19 8.92 3.66 2.80 8.99 RELATIVE HUMIDITY (MEAN %) 81 68 78 59 64 52 39 41 54 50 68 70 60 RELATIVE HUMIDITY (MAX. %) 91 83 92 82 84 72 60 66 79 73 88 87 80 RELATIVE HUMIDITY (MIN. %) 67 51 61 39 45 35 23 22 33 29 48 49 42 RELATIVE HUMIDITY (MEAN% 03UTC) 88 77 88 80 78 69 57 62 74 69 81 82 75 RELATIVE HUMIDITY (MEAN% 09UTC) 74 59 69 45 52 41 27 27 37 35 56 56 48 RELATIVE HUMIDITY (MEAN% 15UTC) 81 65 76 50 56 43 28 31 45 41 62 65 54 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 23.8 20.6 88.5 30.1 53.9 22.0 0.0 0.0 5.4 14.4 5.8 61.1 325.6 DAYS WITH PRECIPITATION >=10 0 0 4 1 3 2 0 0 0 1 0 2 13 DAYS WITH PRECIPITATION >= 5 1 1 6 3 3 2 0 0 0 1 0 4 21 DAYS WITH PRECIPITATION >= 1 8 6 12 3 6 2 0 0 2 1 2 5 47 DAYS WITH PRECIPITATION 14 14 15 4 18 2 2 0 2 4 9 11 95 GREATEST DAILY PRECIPITATION 5.3 7.8 21.9 19.2 16.0 11.0 0.0 0.0 3.0 14.0 2.2 27.0 27.0 DAY 15 5 7 5 7 5 ** ** 26 9 19 13 DAY WITH THUNDER STORM 0 0 0 2 1 2 0 0 0 1 0 0 6 DAYS WITH SNOW OR SLEET 10 9 6 0 0 0 0 0 0 0 0 2 27 DAYS WITH DUST 1 0 1 1 5 3 4 7 6 0 1 1 30 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 13.1 12.6 15.1 14.3 15.0 15.7 14.8 13.9 14.3 10.6 10.4 13.0 13.9 PREVAILING WIND PERCENT 13.0 25.0 35.9 37.8 46.5 38.9 31.8 39.3 45.8 20.6 24.6 13.7 30.9 CALMS PERCENT OF WIND 81.9 61.2 49.3 48.3 45.6 47.3 50.2 41.5 48.3 75.0 72.1 73.4 58.2 NO. OF WIND OBSERVATION 216 196 217 209 217 203 217 229 240 248 240 248 2680 VECTOR WIND DIRECTION (MEAN) 273 270 278 278 277 284 289 283 277 277 275 239 278 VECTOR WIND MAGNITUDE(KNOTS) 1.7 2.4 4.7 6.2 6.9 6.4 4.6 5.8 6.5 2.2 2.7 1.7 4.3 WIND STEADINESES (MEAN %) 81.0 53.3 66.2 88.6 88.5 86.5 70.8 80.6 92.9 84.6 93.1 47.2 78.2 WIND SPEED (MEAN KNOTS) 2.1 4.5 7.1 7.0 7.8 7.4 6.5 7.2 7.0 2.6 2.9 3.6 5.5 FASTEST WIND DIRECTION 270 150 280 270 270 270 270 270 280 270 280 270 270 FASTEST WIND SPEED (KNOTS) 62 33 35 29 54 39 39 29 37 25 27 39 62 DAY 5 16 7 12 23 5 11 18 24 9 7 2 DAYS WITH SKY CLEAR (0-2)/8 8 7 3 12 9 18 26 25 24 21 15 12 180 DAYS WITH P.CLOUDY (3-6)/8 11 7 8 12 13 9 4 6 5 6 10 11 102 DAYS WITH CLOUDY (7-8)/8 12 14 20 6 9 2 1 0 1 4 5 8 82 DAYS WITH VISIBILITY =< 2 KM 8 3 8 0 1 1 0 0 0 0 1 2 24 DURATION OF SUNSHINE HOURS 131.8 128.8 101.0 242.5 218.4 293.2 321.3 336.3 254.0 252.4 174.2 126.9 2580.8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 893.3 893.6 891.5 891.0 888.5 889.2 887.1 888.7 892.8 895.3 896.3 891.5 891.6 MAX. QFE PRESSURE IN HPA 901.7 903.7 898.3 898.8 895.2 896.1 893.6 894.1 899.1 900.4 901.8 902.0 903.7 DAY-HOUR 11- 6 15- 6 12- 9 29- 3 25- 9 17- 6 11- 6 22- 6 11- 6 13- 6 27- 6 17- 6 MIN. QFE PRESSURE IN HPA 883.3 884.4 877.5 878.4 879.8 880.0 878.8 883.0 884.7 889.9 888.7 882.5 877.5 DAY-HOUR 5- 3 4-12 7- 0 5- 0 22- 6 11-15 7-15 11-15 7-12 4-12 5- 0 1-12 MEAN QNH PRESSURE IN HPA 1017.9 1018.2 1015.9 1015.4 1012.6 1013.4 1010.9 1012.8 1017.3 1020.1 1021.3 1015.9 1016.0 MAX. QNH PRESSURE IN HPA 1027.2 1029.5 1023.5 1024.0 1020.0 1021.0 1018.2 1018.8 1024.3 1025.8 1027.3 1027.6 1029.5 DAY-HOUR 11- 6 15- 6 12- 9 29- 3 25- 9 17- 6 11- 6 22- 6 11- 6 13- 6 27- 6 17- 6 MIN. QNH PRESSURE IN HPA 1006.8 1008.0 1000.3 1001.3 1002.9 1003.1 1001.8 1006.4 1008.3 1014.1 1012.8 1005.9 1000.3 DAY-HOUR 5- 3 4-12 7- 0 5- 0 22- 6 11-15 7-15 11-15 7-12 4-12 5- 0 1-12 MEAN QFF PRESSURE IN HPA 1022.2 1021.7 1016.9 1012.9 1009.2 1007.1 1003.0 1005.4 1011.8 1017.4 1021.9 1018.2 1014.0 MAX. QFF PRESSURE IN HPA 1033.8 1036.2 1028.1 1023.5 1018.8 1014.5 1012.5 1012.7 1022.6 1024.2 1030.6 1032.3 1036.2 DAY-HOUR 1- 6 15- 6 12- 6 14-18 25- 3 17-18 11- 6 22- 6 27- 6 13- 6 24- 6 17- 6 MIN. QFF PRESSURE IN HPA 1009.2 1007.6 999.3 995.9 996.4 995.3 991.1 997.4 1000.2 1009.9 1008.9 1004.0 991.1 DAY-HOUR 5- 0 27-12 7- 0 5- 0 17- 0 11-15 8- 0 6- 0 7-12 4-12 5- 0 1-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 893.1 893.4 891.1 890.9 888.2 889.1 887.0 888.7 892.8 895.2 896.4 891.5 891.5 MAX. QFE PRESSURE IN HPA 900.5 901.3 896.8 898.1 893.4 894.7 891.8 891.9 898.5 899.1 900.0 901.3 901.3 DAY 11 15 12 29 25 18 12 27 16 13 23 17 MIN. QFE PRESSURE IN HPA 883.5 884.6 877.5 878.4 880.0 882.7 878.8 883.6 886.2 891.2 888.7 883.3 877.5 DAY 5 4 7 5 23 12 8 6 20 5 5 26 MEAN QNH PRESSURE IN HPA 1017.7 1018.0 1015.4 1015.3 1012.2 1013.2 1010.9 1012.8 1017.3 1020.0 1021.3 1015.9 1015.8 MAX. QNH PRESSURE IN HPA 1025.9 1026.8 1021.8 1023.2 1018.0 1019.4 1016.2 1016.3 1023.7 1024.3 1025.3 1026.8 1026.8 DAY 11 15 12 29 25 18 12 27 16 13 23 17 MIN. QNH PRESSURE IN HPA 1007.0 1008.2 1000.3 1001.3 1003.1 1006.1 1001.8 1007.1 1010.0 1015.6 1012.8 1006.8 1000.3 DAY 5 4 7 5 23 12 8 6 20 5 5 26 MEAN QFF PRESSURE IN HPA 1021.7 1021.0 1016.1 1012.4 1008.7 1006.9 1002.9 1004.8 1011.3 1016.9 1021.5 1017.8 1013.5 MAX. QFF PRESSURE IN HPA 1031.9 1033.9 1028.0 1022.3 1017.1 1013.1 1010.1 1009.9 1020.4 1022.9 1027.9 1031.1 1033.9 DAY 1 14 12 15 5 18 12 23 27 14 23 17 MIN. QFF PRESSURE IN HPA 1009.2 1008.2 999.3 995.9 996.4 998.2 991.1 997.4 1002.2 1011.1 1008.9 1005.9 991.1 DAY 5 4 7 5 17 12 8 6 20 5 5 10 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 893.3 893.7 891.6 891.4 888.6 889.9 887.9 889.6 893.5 895.8 896.9 891.7 892.0 MAX. QFE PRESSURE IN HPA 900.8 901.9 896.8 898.8 894.8 895.8 892.1 893.3 898.9 899.7 900.7 901.3 901.9 DAY 12 15 12 29 25 17 12 22 16 13 27 17 MIN. QFE PRESSURE IN HPA 883.3 884.9 878.0 879.6 880.1 882.8 881.2 884.1 887.4 891.7 889.2 884.6 878.0 DAY 5 4 7 5 17 11 8 6 20 4 5 26 MEAN QNH PRESSURE IN HPA 1017.9 1018.4 1015.9 1015.7 1012.7 1014.1 1011.9 1013.8 1018.1 1020.7 1021.9 1016.2 1016.4 MAX. QNH PRESSURE IN HPA 1026.2 1027.5 1021.8 1024.0 1019.6 1020.7 1016.6 1017.9 1024.1 1025.0 1026.1 1026.8 1027.5 DAY 12 15 12 29 25 17 12 22 16 13 27 17 MIN. QNH PRESSURE IN HPA 1006.8 1008.6 1000.9 1002.7 1003.2 1006.2 1004.4 1007.7 1011.3 1016.1 1013.3 1008.2 1000.9 DAY 5 4 7 5 17 11 8 6 20 4 5 26 MEAN QFF PRESSURE IN HPA 1022.8 1022.3 1017.3 1013.4 1009.4 1007.9 1004.1 1006.6 1013.1 1018.9 1023.2 1019.1 1014.8 MAX. QFF PRESSURE IN HPA 1033.1 1035.3 1027.8 1022.8 1018.8 1014.1 1010.5 1012.1 1021.2 1023.9 1030.1 1031.7 1035.3 DAY 1 14 12 14 25 18 12 22 27 14 24 17 MIN. QFF PRESSURE IN HPA 1009.8 1009.0 1001.4 998.3 996.5 999.5 993.7 998.9 1004.9 1013.5 1010.8 1006.9 993.7 DAY 5 4 7 5 17 11 8 6 3 5 5 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 894.3 894.7 892.4 892.1 889.0 890.2 888.2 889.9 893.9 896.5 897.5 892.7 892.6 MAX. QFE PRESSURE IN HPA 901.7 903.7 898.0 898.8 894.7 896.1 893.6 894.1 899.1 900.4 901.8 902.0 903.7 DAY 11 15 29 29 25 17 11 22 11 13 27 17 MIN. QFE PRESSURE IN HPA 884.9 885.6 879.5 882.8 879.8 882.8 883.1 885.3 887.9 892.5 889.7 887.3 879.5 DAY 25 4 7 10 22 11 7 11 3 4 5 2 MEAN QNH PRESSURE IN HPA 1019.0 1019.5 1016.9 1016.6 1013.2 1014.4 1012.2 1014.1 1018.6 1021.4 1022.6 1017.2 1017.1 MAX. QNH PRESSURE IN HPA 1027.2 1029.5 1023.1 1024.0 1019.4 1021.0 1018.2 1018.8 1024.3 1025.8 1027.3 1027.6 1029.5 DAY 11 15 29 29 25 17 11 22 11 13 27 17 MIN. QNH PRESSURE IN HPA 1008.6 1009.3 1002.6 1006.2 1002.9 1006.2 1006.6 1009.0 1011.9 1017.0 1013.9 1011.2 1002.6 DAY 25 4 7 10 22 11 7 11 3 4 5 2 MEAN QFF PRESSURE IN HPA 1023.4 1023.1 1018.2 1014.2 1009.8 1008.2 1004.2 1006.8 1013.2 1018.8 1023.5 1019.8 1015.2 MAX. QFF PRESSURE IN HPA 1033.8 1036.2 1028.1 1023.2 1018.7 1014.5 1012.5 1012.7 1022.6 1024.2 1030.6 1032.3 1036.2 DAY 1 15 12 14 25 17 11 22 27 13 24 17 MIN. QFF PRESSURE IN HPA 1011.6 1009.8 1003.8 1002.9 997.7 999.6 996.7 1000.2 1004.5 1013.2 1011.5 1010.1 996.7 DAY 25 4 7 10 22 11 8 6 3 5 5 10 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 893.2 893.6 891.6 891.1 888.5 889.3 887.2 888.8 892.8 895.2 896.2 891.4 891.6 MAX. QFE PRESSURE IN HPA 900.6 902.7 898.3 897.8 895.2 895.6 893.6 892.5 898.1 899.4 901.1 899.5 902.7 DAY 11 15 12 28 25 17 11 27 16 13 27 17 MIN. QFE PRESSURE IN HPA 884.5 884.7 880.2 882.0 879.8 881.9 880.8 883.9 886.6 890.8 889.6 884.3 879.8 DAY 25 4 7 10 22 11 7 11 7 4 5 1 MEAN QNH PRESSURE IN HPA 1017.8 1018.2 1016.0 1015.5 1012.6 1013.5 1011.1 1012.9 1017.3 1020.0 1021.1 1015.7 1016.0 MAX. QNH PRESSURE IN HPA 1026.0 1028.3 1023.5 1022.9 1020.0 1020.5 1018.2 1017.0 1023.2 1024.7 1026.6 1024.8 1028.3 DAY 11 15 12 28 25 17 11 27 16 13 27 17 MIN. QNH PRESSURE IN HPA 1008.1 1008.3 1003.3 1005.3 1002.9 1005.2 1004.0 1007.4 1010.4 1015.1 1013.8 1007.9 1002.9 DAY 25 4 7 10 22 11 7 11 7 4 5 1 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1011.4 1016.8 1021.3 1017.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1022.1 1022.7 1028.8 1029.4 ****** DAY ** ** ** ** ** ** ** ** 27 13 27 17 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1002.7 1010.7 1011.2 1007.1 ****** DAY ** ** ** ** ** ** ** ** 21 4 5 1 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 892.6 892.7 890.7 890.2 888.0 888.4 886.1 887.5 891.5 894.4 895.3 890.6 890.7 MAX. QFE PRESSURE IN HPA 900.0 901.2 897.5 896.5 894.7 894.4 892.6 891.1 897.2 898.8 900.0 898.6 901.2 DAY 11 15 12 28 25 17 11 27 15 13 27 17 MIN. QFE PRESSURE IN HPA 884.4 884.4 880.3 881.4 879.8 880.5 879.5 883.2 884.7 889.9 889.3 882.5 879.5 DAY 3 4 7 4 22 11 7 11 7 4 4 1 MEAN QNH PRESSURE IN HPA 1017.1 1017.2 1015.0 1014.5 1012.0 1012.5 1009.9 1011.4 1015.9 1019.1 1020.1 1014.8 1015.0 MAX. QNH PRESSURE IN HPA 1025.3 1026.7 1022.6 1021.5 1019.4 1019.1 1017.1 1015.4 1022.2 1024.0 1025.3 1023.8 1026.7 DAY 11 15 12 28 25 17 11 27 15 13 27 17 MIN. QNH PRESSURE IN HPA 1008.0 1008.0 1003.4 1004.7 1002.9 1003.7 1002.6 1006.7 1008.3 1014.1 1013.4 1005.9 1002.6 DAY 3 4 7 4 22 11 7 11 7 4 4 1 MEAN QFF PRESSURE IN HPA 1021.0 1020.2 1015.6 1011.9 1008.4 1006.1 1002.0 1003.7 1010.0 1016.0 1020.3 1016.8 1012.7 MAX. QFF PRESSURE IN HPA 1029.7 1032.4 1027.4 1021.7 1018.0 1012.6 1011.0 1008.8 1020.1 1021.9 1027.2 1028.4 1032.4 DAY 12 13 12 14 25 17 11 27 27 13 27 17 MIN. QFF PRESSURE IN HPA 1011.6 1007.6 1003.8 999.8 998.3 996.1 993.2 998.9 1000.2 1009.9 1010.4 1004.0 993.2 DAY 26 27 6 4 22 11 7 11 7 4 4 1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 893.2 893.2 891.1 890.4 888.3 888.4 886.0 887.4 891.8 894.8 895.9 891.2 891.0 MAX. QFE PRESSURE IN HPA 900.5 900.6 897.6 896.6 894.4 894.6 892.1 891.1 897.7 899.1 900.6 898.3 900.6 DAY 11 15 12 28 4 17 11 27 15 13 27 17 MIN. QFE PRESSURE IN HPA 884.9 884.6 881.5 880.8 881.0 880.0 878.8 883.0 885.2 890.6 889.4 883.0 878.8 DAY 3 4 6 4 22 11 7 11 7 4 4 1 MEAN QNH PRESSURE IN HPA 1017.7 1017.7 1015.5 1014.6 1012.3 1012.4 1009.8 1011.4 1016.2 1019.5 1020.7 1015.5 1015.3 MAX. QNH PRESSURE IN HPA 1025.9 1026.0 1022.7 1021.6 1019.1 1019.3 1016.6 1015.4 1022.8 1024.3 1026.0 1023.5 1026.0 DAY 11 15 12 28 4 17 11 27 15 13 27 17 MIN. QNH PRESSURE IN HPA 1008.6 1008.2 1004.8 1004.0 1004.2 1003.1 1001.8 1006.4 1008.9 1014.9 1013.6 1006.4 1001.8 DAY 3 4 6 4 22 11 7 11 7 4 4 1 MEAN QFF PRESSURE IN HPA 1022.4 1021.6 1016.7 1012.3 1008.9 1006.2 1002.0 1004.2 1011.3 1017.7 1022.1 1018.5 1013.7 MAX. QFF PRESSURE IN HPA 1031.7 1034.9 1027.8 1022.2 1017.7 1013.6 1010.7 1009.5 1019.7 1023.2 1029.0 1028.7 1034.9 DAY 12 13 12 14 4 17 11 27 27 13 24 17 MIN. QFF PRESSURE IN HPA 1012.9 1008.7 1003.8 999.8 999.7 995.3 991.9 999.1 1001.7 1012.2 1011.8 1004.9 991.9 DAY 30 4 6 4 22 11 7 5 8 4 4 1 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 893.4 893.7 891.9 891.4 889.2 889.5 887.1 888.9 893.1 895.5 896.4 891.6 891.8 MAX. QFE PRESSURE IN HPA 900.6 900.8 897.6 898.2 894.8 895.4 893.1 893.1 898.4 899.7 900.2 899.0 900.8 DAY 12 14 12 28 4 17 11 27 15 12 27 16 MIN. QFE PRESSURE IN HPA 884.9 884.4 880.8 879.8 881.8 881.3 878.8 884.2 885.7 890.9 889.7 883.2 878.8 DAY 3 4 6 4 22 11 7 11 19 4 4 1 MEAN QNH PRESSURE IN HPA 1018.0 1018.3 1016.3 1015.7 1013.3 1013.6 1011.0 1013.0 1017.6 1020.3 1021.4 1016.0 1016.2 MAX. QNH PRESSURE IN HPA 1026.0 1026.2 1022.7 1023.3 1019.6 1020.2 1017.7 1017.7 1023.6 1025.0 1025.6 1024.2 1026.2 DAY 12 14 12 28 4 17 11 27 15 12 27 16 MIN. QNH PRESSURE IN HPA 1008.6 1008.0 1004.0 1002.9 1005.1 1004.5 1001.8 1007.8 1009.4 1015.2 1013.9 1006.7 1001.8 DAY 3 4 6 4 22 11 7 11 19 4 4 1 MEAN QFF PRESSURE IN HPA 1022.3 1021.9 1017.5 1013.3 1009.9 1007.4 1003.0 1005.6 1012.2 1017.7 1022.3 1018.6 1014.3 MAX. QFF PRESSURE IN HPA 1031.3 1034.1 1027.4 1023.5 1018.5 1014.5 1012.0 1011.9 1021.1 1023.4 1029.0 1029.1 1034.1 DAY 12 13 12 14 4 17 11 27 27 12 24 17 MIN. QFF PRESSURE IN HPA 1011.4 1008.5 1003.5 997.8 1000.1 997.0 991.5 999.8 1003.9 1011.1 1012.4 1005.4 991.5 DAY 4 4 6 4 22 11 7 11 19 4 4 1 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 893.0 895.4 896.3 891.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 898.5 899.7 899.9 900.5 ****** DAY ** ** ** ** ** ** ** ** 15 12 22 16 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 885.7 891.2 889.7 882.7 ****** DAY ** ** ** ** ** ** ** ** 19 4 4 31 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1017.6 1020.2 1021.2 1015.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1023.7 1025.0 1025.2 1025.9 ****** DAY ** ** ** ** ** ** ** ** 15 12 22 16 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1009.4 1015.6 1013.9 1006.1 ****** DAY ** ** ** ** ** ** ** ** 19 4 4 31 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1011.7 1016.9 1021.5 1017.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1020.8 1023.1 1027.8 1029.2 ****** DAY ** ** ** ** ** ** ** ** 27 12 24 16 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1003.1 1010.7 1011.1 1006.3 ****** DAY ** ** ** ** ** ** ** ** 19 4 4 1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -0.9 1.7 2.5 10.2 13.3 21.0 24.4 20.8 18.1 12.3 9.1 2.9 11.3 MINIMUN AIR TEMPERATURE (C) -4.4 -2.3 -1.4 5.6 8.2 14.9 17.6 14.4 10.5 4.8 2.5 -0.7 5.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH MINIMUM TEMP. <=-4 15 7 9 0 0 0 0 0 0 0 4 4 39 DAYS WITH FREEZING MIN.<= 0 25 23 20 0 0 0 0 0 0 3 10 19 100 TEMPERATURE RECORDS LOWEST(C) -13.6 -9.0 -13.6 1.2 0.2 11.4 15.0 5.4 5.4 -1.0 -8.6 -10.8 -13.6 DAY 27 12 13 17 6 16 12 31 1 18 27 29 MAXIMUM AIR TEMPERATURE (C) 3.7 7.5 7.5 17.7 19.3 27.6 32.0 27.9 26.1 20.9 17.3 7.9 18.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 11 21 6 2 0 0 0 40 DAYS WITH MAXIMUM TEMP. <= 0 8 1 3 0 0 0 0 0 0 0 0 0 12 TEMPERATURE RECORDS HIGHEST(C) 11.0 18.6 19.2 26.8 27.0 33.2 37.2 36.2 33.5 28.0 22.0 17.8 37.2 DAY 20 24 30 13 30 30 22 24 25 13 7 16 DIF. BETWEEN (MAX.-MIN.) (C) 8.1 9.8 8.9 12.1 11.1 12.7 14.4 13.5 15.6 16.1 14.8 8.6 12.2 MEAN DAILY TEMP. (MDT) (C) -0.4 2.6 3.0 11.6 13.7 21.3 24.8 21.1 18.3 12.9 9.9 3.6 11.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.0 35.4 120.5 31.1 1.3 0.0 0.0 0.0 188.4 HEATING DEG. DAYS(BASE 18 0C) 569.7 445.8 463.8 152.2 137.1 3.1 0.0 6.8 19.7 159.5 242.1 447.4 2647.2 DEWPOINT (MEAN C) -5.9 -4.3 -2.2 4.6 6.7 11.7 12.7 11.2 5.6 1.9 -1.4 -0.7 3.3 MIXING RATIO (G/KG) 2.88 3.22 3.81 6.14 7.12 9.88 10.73 9.95 6.99 5.18 4.12 4.17 6.18 VAPOUR PRESSURE (HPA) 4.10 4.57 5.42 8.70 10.08 13.89 15.06 14.00 9.90 7.38 5.88 5.95 8.74 SATURATION DEF. (HPA) 1.96 2.77 2.34 4.38 6.09 12.01 16.90 11.68 12.02 7.90 6.70 1.91 7.22 RELATIVE HUMIDITY (MEAN %) 71 68 74 72 69 59 52 59 50 54 55 79 64 RELATIVE HUMIDITY (MAX. %) 85 85 89 89 87 81 75 83 75 80 77 91 83 RELATIVE HUMIDITY (MIN. %) 55 47 55 51 48 38 32 39 29 32 34 64 44 RELATIVE HUMIDITY (MEAN% 03UTC) 78 80 84 87 83 77 68 75 71 74 70 86 78 RELATIVE HUMIDITY (MEAN% 09UTC) 63 57 62 57 54 45 38 44 34 39 40 70 50 RELATIVE HUMIDITY (MEAN% 15UTC) 70 62 70 64 58 46 40 48 39 46 47 78 56 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 31.6 23.9 61.5 76.9 54.6 32.1 0.4 6.0 0.6 2.7 3.7 39.4 333.4 DAYS WITH PRECIPITATION >=10 1 0 0 2 2 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 5 2 1 5 4 3 2 0 0 0 0 0 5 22 DAYS WITH PRECIPITATION >= 1 7 8 13 10 8 7 0 3 0 1 1 8 66 DAYS WITH PRECIPITATION 12 14 19 16 13 12 1 5 1 2 2 13 110 GREATEST DAILY PRECIPITATION 11.0 7.5 9.0 24.6 20.4 9.0 0.4 2.0 0.6 2.0 3.3 8.4 24.6 DAY 3 25 24 27 13 4 8 11 28 16 26 5 DAY WITH THUNDER STORM 0 0 1 4 6 9 0 0 0 0 0 0 20 DAYS WITH SNOW OR SLEET 11 13 10 1 0 0 0 0 0 0 1 7 43 DAYS WITH DUST 0 0 0 0 0 2 3 1 5 2 4 0 17 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 10.6 13.5 12.7 15.5 13.9 14.1 14.9 14.4 13.9 12.3 12.8 11.7 13.7 PREVAILING WIND PERCENT 21.0 18.1 32.7 29.2 31.5 38.3 51.2 53.2 30.8 21.0 15.0 12.9 29.6 CALMS PERCENT OF WIND 58.5 65.5 58.1 58.8 54.4 47.5 29.8 33.5 51.7 69.8 70.0 72.6 55.8 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 232 238 277 279 283 282 283 283 282 277 232 249 275 VECTOR WIND MAGNITUDE(KNOTS) 2.5 2.3 4.0 5.0 4.2 5.1 7.6 7.9 4.3 2.6 1.7 1.3 3.9 WIND STEADINESES (MEAN %) 49.0 48.9 80.0 83.3 72.4 77.3 81.7 89.8 70.5 78.8 42.5 44.8 68.4 WIND SPEED (MEAN KNOTS) 5.1 4.7 5.0 6.0 5.8 6.6 9.3 8.8 6.1 3.3 4.0 2.9 5.7 FASTEST WIND DIRECTION 150 160 270 280 280 280 290 280 280 270 180 270 180 FASTEST WIND SPEED (KNOTS) 49 29 39 39 31 45 41 37 31 33 58 35 58 DAY 30 6 24 23 13 12 11 27 18 14 25 28 DAYS WITH SKY CLEAR (0-2)/8 12 12 7 3 5 18 25 21 25 25 15 3 171 DAYS WITH P.CLOUDY (3-6)/8 7 8 10 17 16 8 6 7 4 3 12 16 114 DAYS WITH CLOUDY (7-8)/8 12 9 14 10 10 4 0 3 1 3 3 12 81 DAYS WITH VISIBILITY =< 2 KM 3 5 7 4 1 1 0 1 0 0 1 6 29 DURATION OF SUNSHINE HOURS 129.6 135.7 130.3 159.1 214.6 282.3 327.8 295.7 278.1 245.9 189.9 91.6 2480.6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 892.1 888.8 891.4 889.8 891.7 888.0 888.3 891.4 893.2 894.1 894.4 892.9 891.3 MAX. QFE PRESSURE IN HPA 903.9 898.3 900.0 896.7 899.7 894.3 894.4 898.8 899.4 900.5 905.4 901.0 905.4 DAY-HOUR 10- 6 16- 6 12-15 30-18 2-18 6-21 13- 3 31- 6 30- 6 30- 6 4- 6 2-18 MIN. QFE PRESSURE IN HPA 880.2 880.5 877.9 884.3 883.9 881.4 883.6 885.3 885.6 887.7 884.6 886.3 877.9 DAY-HOUR 1- 3 24-21 31- 3 22-15 10-12 27-12 9-15 1-12 17-15 24-12 25-12 27-12 MEAN QNH PRESSURE IN HPA 1016.5 1012.9 1015.8 1014.0 1016.1 1012.0 1012.3 1015.8 1017.8 1018.8 1019.1 1017.4 1015.7 MAX. QNH PRESSURE IN HPA 1029.7 1023.5 1025.3 1021.7 1025.0 1019.0 1019.1 1024.0 1024.7 1025.9 1031.3 1026.5 1031.3 DAY-HOUR 10- 6 16- 6 12-15 30-18 2-18 6-21 13- 3 31- 6 30- 6 30- 6 4- 6 2-18 MIN. QNH PRESSURE IN HPA 1003.3 1003.7 1000.8 1007.9 1007.4 1004.7 1007.1 1009.0 1009.3 1011.7 1008.2 1010.1 1000.8 DAY-HOUR 1- 3 24-21 31- 3 22-15 10-12 27-12 9-15 1-12 17-15 24-12 25-12 27-12 MEAN QFF PRESSURE IN HPA 1020.8 1015.8 1018.4 1012.7 1013.4 1005.6 1004.4 1009.5 1013.0 1016.7 1018.6 1019.7 1014.1 MAX. QFF PRESSURE IN HPA 1038.2 1029.3 1033.0 1022.3 1026.9 1014.4 1014.4 1021.4 1022.2 1025.0 1032.5 1029.5 1038.2 DAY-HOUR 10- 6 16- 3 13- 3 30-21 2-18 6-18 13- 3 31- 3 30- 6 17- 3 4- 3 2-18 MIN. QFF PRESSURE IN HPA 1003.7 1000.0 998.1 1004.0 1001.2 996.6 998.5 1001.3 1003.6 1008.1 1003.8 1011.1 996.6 DAY-HOUR 3- 0 24-21 31- 3 15- 0 10-12 27-12 23-12 1-12 25-12 24-12 25-12 14-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 891.6 888.6 891.0 889.2 891.6 888.1 888.4 891.2 893.3 894.1 894.4 892.8 891.2 MAX. QFE PRESSURE IN HPA 903.0 896.8 898.9 894.0 897.9 893.8 893.4 897.2 898.2 899.1 904.4 899.5 904.4 DAY 10 16 13 8 3 7 13 31 30 30 4 3 MIN. QFE PRESSURE IN HPA 880.2 881.6 878.9 884.4 886.2 883.1 883.9 886.3 888.9 889.4 885.1 888.1 878.9 DAY 3 25 31 10 19 28 10 19 18 25 26 28 MEAN QNH PRESSURE IN HPA 1016.0 1012.6 1015.4 1013.4 1016.0 1012.1 1012.5 1015.6 1017.9 1018.8 1019.1 1017.3 1015.6 MAX. QNH PRESSURE IN HPA 1028.7 1021.8 1024.1 1018.7 1023.0 1018.4 1018.0 1022.2 1023.3 1024.3 1030.2 1024.8 1030.2 DAY 10 16 13 8 3 7 13 31 30 30 4 3 MIN. QNH PRESSURE IN HPA 1003.3 1004.9 1001.9 1008.0 1010.0 1006.6 1007.4 1010.1 1013.0 1013.6 1008.8 1012.1 1001.9 DAY 3 25 31 10 19 28 10 19 18 25 26 28 MEAN QFF PRESSURE IN HPA 1020.0 1015.1 1017.7 1011.8 1013.4 1005.8 1004.5 1009.1 1012.8 1016.2 1018.1 1019.2 1013.6 MAX. QFF PRESSURE IN HPA 1036.9 1027.5 1031.8 1019.0 1024.4 1013.9 1012.9 1020.0 1020.8 1023.6 1030.6 1028.5 1036.9 DAY 10 16 13 20 3 7 13 31 30 17 4 29 MIN. QFF PRESSURE IN HPA 1003.7 1003.9 998.4 1004.0 1004.3 998.3 999.6 1002.1 1005.8 1009.2 1006.0 1012.6 998.3 DAY 3 25 31 15 19 28 10 1 18 11 26 14 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 891.9 888.9 891.5 889.9 892.1 888.7 889.1 892.0 894.1 894.7 894.9 893.0 891.7 MAX. QFE PRESSURE IN HPA 903.0 897.7 899.2 894.2 898.1 893.6 894.4 898.2 898.5 899.8 904.8 899.1 904.8 DAY 10 16 13 8 2 7 13 31 29 30 4 1 MIN. QFE PRESSURE IN HPA 880.2 883.2 877.9 884.4 886.2 883.1 884.6 887.2 889.6 890.0 885.1 888.1 877.9 DAY 1 8 31 15 19 28 10 1 18 11 26 28 MEAN QNH PRESSURE IN HPA 1016.3 1013.0 1015.9 1014.1 1016.6 1012.7 1013.3 1016.5 1018.8 1019.5 1019.7 1017.6 1016.2 MAX. QNH PRESSURE IN HPA 1028.7 1022.8 1024.5 1018.9 1023.2 1018.2 1019.1 1023.3 1023.7 1025.1 1030.7 1024.3 1030.7 DAY 10 16 13 8 2 7 13 31 29 30 4 1 MIN. QNH PRESSURE IN HPA 1003.3 1006.7 1000.8 1008.0 1010.0 1006.6 1008.2 1011.1 1013.8 1014.2 1008.8 1012.1 1000.8 DAY 1 8 31 15 19 28 10 1 18 11 26 28 MEAN QFF PRESSURE IN HPA 1021.0 1016.5 1018.9 1013.1 1014.2 1006.5 1005.5 1010.5 1014.7 1018.3 1019.9 1020.3 1015.0 MAX. QFF PRESSURE IN HPA 1037.8 1029.3 1033.0 1019.8 1025.2 1013.4 1014.4 1021.4 1021.5 1025.0 1032.5 1029.4 1037.8 DAY 10 16 13 20 2 7 13 31 30 17 4 29 MIN. QFF PRESSURE IN HPA 1003.7 1006.3 998.1 1004.7 1004.6 998.8 1000.1 1003.5 1007.5 1011.3 1006.7 1012.8 998.1 DAY 1 25 31 15 19 28 10 1 18 11 26 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 892.8 889.7 892.2 890.6 892.3 888.8 889.3 892.4 894.4 895.5 895.5 894.0 892.3 MAX. QFE PRESSURE IN HPA 903.9 898.3 899.3 894.7 898.4 894.0 894.2 898.8 899.4 900.5 905.4 899.8 905.4 DAY 10 16 12 8 2 7 12 31 30 30 4 1 MIN. QFE PRESSURE IN HPA 881.3 883.2 878.0 884.9 885.8 883.4 885.4 887.4 890.0 890.4 885.1 887.9 878.0 DAY 1 25 31 15 10 28 10 1 17 24 26 28 MEAN QNH PRESSURE IN HPA 1017.4 1013.8 1016.7 1014.8 1016.7 1012.9 1013.4 1016.9 1019.1 1020.3 1020.4 1018.6 1016.8 MAX. QNH PRESSURE IN HPA 1029.7 1023.5 1024.6 1019.4 1023.6 1018.7 1018.9 1024.0 1024.7 1025.9 1031.3 1025.1 1031.3 DAY 10 16 12 8 2 7 12 31 30 30 4 1 MIN. QNH PRESSURE IN HPA 1004.5 1006.7 1000.9 1008.6 1009.6 1006.9 1009.1 1011.3 1014.2 1014.7 1008.8 1011.9 1000.9 DAY 1 25 31 15 10 28 10 1 17 24 26 28 MEAN QFF PRESSURE IN HPA 1021.9 1017.0 1019.4 1013.7 1014.2 1006.6 1005.7 1010.6 1014.3 1018.3 1020.1 1021.2 1015.3 MAX. QFF PRESSURE IN HPA 1038.2 1029.0 1031.8 1019.5 1025.3 1013.5 1014.1 1021.4 1022.2 1025.0 1031.9 1029.1 1038.2 DAY 10 16 13 8 2 7 12 31 30 30 4 29 MIN. QFF PRESSURE IN HPA 1004.9 1006.1 999.1 1006.2 1004.0 998.9 1000.7 1003.1 1008.0 1011.8 1007.4 1013.5 998.9 DAY 1 25 31 15 19 28 24 1 18 11 25 14 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 891.9 888.9 891.5 889.7 891.6 888.0 888.3 891.5 893.0 894.1 894.0 892.7 891.3 MAX. QFE PRESSURE IN HPA 902.3 897.8 899.9 893.2 898.4 893.3 893.2 897.5 898.1 899.7 904.1 898.7 904.1 DAY 10 16 12 23 2 12 7 31 30 29 4 1 MIN. QFE PRESSURE IN HPA 883.4 882.6 878.9 885.3 884.3 882.0 884.6 886.6 888.1 889.0 885.6 888.1 878.9 DAY 1 21 31 18 10 27 10 1 17 24 26 28 MEAN QNH PRESSURE IN HPA 1016.3 1013.0 1015.9 1013.9 1016.0 1012.0 1012.3 1015.9 1017.6 1018.7 1018.7 1017.2 1015.6 MAX. QNH PRESSURE IN HPA 1027.9 1022.9 1025.2 1017.8 1023.6 1017.9 1017.8 1022.6 1023.2 1025.0 1029.9 1023.9 1029.9 DAY 10 16 12 23 2 12 7 31 30 29 4 1 MIN. QNH PRESSURE IN HPA 1006.9 1006.0 1001.9 1009.0 1007.9 1005.3 1008.2 1010.4 1012.1 1013.1 1009.3 1012.1 1001.9 DAY 1 21 31 18 10 27 10 1 17 24 26 28 MEAN QFF PRESSURE IN HPA 1020.3 1015.5 1018.3 1012.2 1013.1 1005.3 1004.3 1009.4 1012.3 1016.1 1017.6 1019.1 1013.6 MAX. QFF PRESSURE IN HPA 1035.3 1028.2 1031.2 1017.4 1025.0 1013.3 1012.4 1019.8 1020.7 1022.8 1029.6 1025.6 1035.3 DAY 10 16 12 19 2 12 12 31 30 16 4 1 MIN. QFF PRESSURE IN HPA 1008.6 1005.0 1001.1 1005.9 1001.9 997.2 999.2 1002.7 1005.1 1009.6 1005.7 1011.9 997.2 DAY 1 24 31 22 10 27 24 1 25 24 25 14 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 891.4 888.0 890.7 889.0 890.9 887.0 887.1 890.4 891.9 893.1 893.2 892.2 890.4 MAX. QFE PRESSURE IN HPA 901.3 896.0 899.7 893.4 898.0 891.8 892.1 896.5 897.2 899.7 902.9 898.0 902.9 DAY 9 16 12 30 2 6 12 31 29 29 3 2 MIN. QFE PRESSURE IN HPA 883.9 881.9 879.9 884.6 883.9 881.4 883.6 885.3 886.1 887.7 884.6 886.3 879.9 DAY 30 5 31 18 10 27 10 1 17 24 25 27 MEAN QNH PRESSURE IN HPA 1015.8 1012.0 1015.0 1013.1 1015.2 1010.9 1011.0 1014.6 1016.3 1017.7 1017.8 1016.6 1014.7 MAX. QNH PRESSURE IN HPA 1026.8 1020.9 1025.0 1018.0 1023.1 1016.2 1016.6 1021.5 1022.2 1025.0 1028.6 1023.1 1028.6 DAY 9 16 12 30 2 6 12 31 29 29 3 2 MIN. QNH PRESSURE IN HPA 1007.4 1005.2 1003.0 1008.2 1007.4 1004.7 1007.1 1009.0 1009.9 1011.7 1008.2 1010.1 1003.0 DAY 30 5 31 18 10 27 10 1 17 24 25 27 MEAN QFF PRESSURE IN HPA 1019.8 1014.5 1017.3 1011.5 1012.4 1004.6 1003.1 1008.2 1011.2 1015.0 1016.7 1018.6 1012.7 MAX. QFF PRESSURE IN HPA 1033.3 1026.2 1031.2 1018.0 1024.5 1011.7 1011.3 1018.9 1019.7 1022.4 1028.1 1024.8 1033.3 DAY 10 16 12 30 2 6 12 31 29 29 17 2 MIN. QFF PRESSURE IN HPA 1010.1 1005.6 1000.9 1004.3 1001.2 996.6 998.5 1001.3 1003.6 1008.1 1003.8 1011.1 996.6 DAY 1 24 30 22 10 27 23 1 25 24 25 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 892.1 888.6 891.2 889.4 891.2 887.1 887.2 890.3 892.4 893.5 893.9 892.7 890.8 MAX. QFE PRESSURE IN HPA 902.4 896.3 900.0 894.0 898.4 892.2 892.1 896.5 897.5 900.1 903.7 898.8 903.7 DAY 9 16 12 30 2 6 7 31 29 29 3 2 MIN. QFE PRESSURE IN HPA 883.0 882.6 879.3 884.3 884.1 882.2 883.6 885.7 885.6 887.7 884.9 886.8 879.3 DAY 30 5 30 22 9 27 9 1 17 24 25 27 MEAN QNH PRESSURE IN HPA 1016.5 1012.7 1015.6 1013.6 1015.5 1011.0 1011.1 1014.6 1016.9 1018.1 1018.6 1017.2 1015.1 MAX. QNH PRESSURE IN HPA 1028.0 1021.2 1025.3 1018.7 1023.6 1016.7 1016.6 1021.5 1022.6 1025.5 1029.5 1024.0 1029.5 DAY 9 16 12 30 2 6 7 31 29 29 3 2 MIN. QNH PRESSURE IN HPA 1006.4 1006.0 1002.3 1007.9 1007.7 1005.6 1007.1 1009.4 1009.3 1011.7 1008.6 1010.7 1002.3 DAY 30 5 30 22 9 27 9 1 17 24 25 27 MEAN QFF PRESSURE IN HPA 1021.3 1016.1 1018.5 1012.5 1013.0 1004.8 1003.3 1008.6 1012.7 1016.9 1018.9 1020.0 1013.9 MAX. QFF PRESSURE IN HPA 1035.2 1027.6 1032.6 1019.2 1025.2 1012.1 1011.8 1019.1 1020.4 1024.1 1030.1 1027.4 1035.2 DAY 9 16 12 30 2 6 12 31 29 29 17 2 MIN. QFF PRESSURE IN HPA 1011.1 1005.2 1000.2 1004.1 1003.5 997.8 998.6 1001.7 1004.0 1010.1 1003.9 1013.2 997.8 DAY 16 24 30 22 9 27 23 24 17 24 25 27 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 892.7 889.2 891.8 890.6 892.1 888.3 888.4 891.7 893.5 894.2 894.7 893.1 891.7 MAX. QFE PRESSURE IN HPA 903.1 896.9 899.8 896.7 899.7 894.2 893.4 897.7 898.4 900.4 904.4 901.0 904.4 DAY 9 15 12 30 2 6 12 31 29 29 3 2 MIN. QFE PRESSURE IN HPA 882.8 882.2 880.4 885.1 885.1 883.4 883.9 886.6 886.7 888.7 885.0 888.1 880.4 DAY 30 24 30 22 9 27 9 18 17 24 25 27 MEAN QNH PRESSURE IN HPA 1017.2 1013.4 1016.3 1014.8 1016.6 1012.4 1012.5 1016.1 1018.1 1018.9 1019.5 1017.7 1016.1 MAX. QNH PRESSURE IN HPA 1028.8 1021.9 1025.1 1021.7 1025.0 1018.9 1018.0 1022.8 1023.6 1025.8 1030.2 1026.5 1030.2 DAY 9 15 12 30 2 6 12 31 29 29 3 2 MIN. QNH PRESSURE IN HPA 1006.2 1005.6 1003.5 1008.8 1008.8 1006.9 1007.4 1010.4 1010.6 1012.8 1008.7 1012.1 1003.5 DAY 30 24 30 22 9 27 9 18 17 24 25 27 MEAN QFF PRESSURE IN HPA 1021.7 1016.5 1018.9 1013.7 1014.0 1006.1 1004.7 1009.9 1013.2 1016.8 1019.3 1020.3 1014.6 MAX. QFF PRESSURE IN HPA 1036.7 1027.3 1032.1 1022.2 1026.9 1014.4 1013.3 1020.3 1021.2 1024.2 1030.9 1029.5 1036.7 DAY 9 16 12 30 2 6 12 31 29 29 17 2 MIN. QFF PRESSURE IN HPA 1010.1 1002.6 1001.2 1005.9 1004.4 998.9 999.3 1001.9 1004.2 1010.4 1004.7 1013.6 998.9 DAY 16 24 30 22 9 27 9 24 17 13 25 13 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 892.4 888.9 891.4 890.2 891.8 888.1 888.4 891.7 893.4 894.2 894.6 892.9 891.5 MAX. QFE PRESSURE IN HPA 903.0 897.0 899.7 896.7 898.7 894.3 893.2 897.3 898.4 900.4 904.5 900.3 904.5 DAY 9 15 12 30 2 6 12 31 29 29 3 2 MIN. QFE PRESSURE IN HPA 882.8 880.5 879.3 884.6 884.6 883.1 883.9 886.6 887.6 888.7 884.7 888.1 879.3 DAY 30 24 30 22 9 27 9 18 17 24 25 30 MEAN QNH PRESSURE IN HPA 1016.9 1013.0 1015.8 1014.4 1016.3 1012.2 1012.5 1016.1 1018.0 1018.8 1019.4 1017.4 1015.9 MAX. QNH PRESSURE IN HPA 1028.7 1022.0 1025.0 1021.7 1023.9 1019.0 1017.8 1022.3 1023.6 1025.8 1030.3 1025.7 1030.3 DAY 9 15 12 30 2 6 12 31 29 29 3 2 MIN. QNH PRESSURE IN HPA 1006.2 1003.7 1002.3 1008.2 1008.2 1006.6 1007.4 1010.4 1011.6 1012.8 1008.3 1012.1 1002.3 DAY 30 24 30 22 9 27 9 18 17 24 25 30 MEAN QFF PRESSURE IN HPA 1020.9 1015.5 1018.0 1012.7 1013.3 1005.5 1004.4 1009.6 1012.7 1016.2 1018.4 1019.4 1013.9 MAX. QFF PRESSURE IN HPA 1036.1 1026.6 1032.1 1022.3 1025.4 1014.0 1012.6 1019.6 1020.9 1024.1 1030.5 1027.8 1036.1 DAY 9 16 12 30 2 6 12 30 29 29 3 2 MIN. QFF PRESSURE IN HPA 1007.0 1000.0 999.4 1004.2 1002.7 998.0 998.7 1001.8 1003.8 1008.9 1004.7 1013.1 998.0 DAY 2 24 30 22 9 27 9 24 25 24 25 13 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -2.0 1.0 5.0 12.3 16.6 21.2 23.8 23.3 20.5 11.3 4.5 2.5 11.7 MINIMUN AIR TEMPERATURE (C) -6.5 -2.6 0.3 6.5 11.1 14.2 17.4 15.9 13.4 4.2 1.5 -1.5 6.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 1 0 0 0 0 1 DAYS WITH MINIMUM TEMP. <=-4 22 8 3 0 0 0 0 0 0 0 2 5 40 DAYS WITH FREEZING MIN.<= 0 29 22 16 0 0 0 0 0 0 4 12 25 108 TEMPERATURE RECORDS LOWEST(C) -17.0 -17.6 -8.0 2.2 4.8 10.4 14.0 13.0 6.0 -2.0 -5.6 -8.6 -17.6 DAY 20 17 24 13 10 7 30 26 28 9 15 1 MAXIMUM AIR TEMPERATURE (C) 3.2 6.0 11.5 19.8 23.2 29.2 32.1 31.1 29.2 19.5 9.2 8.7 18.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 0 14 26 23 16 1 0 0 81 DAYS WITH MAXIMUM TEMP. <= 0 7 3 1 0 0 0 0 0 0 0 0 0 11 TEMPERATURE RECORDS HIGHEST(C) 14.0 12.8 21.2 30.8 29.7 36.6 37.4 35.2 35.4 32.7 20.2 16.0 37.4 DAY 29 27 30 20 18 28 3 14 3 1 11 23 DIF. BETWEEN (MAX.-MIN.) (C) 9.7 8.6 11.2 13.3 12.1 15.0 14.7 15.2 15.8 15.3 7.7 10.2 12.4 MEAN DAILY TEMP. (MDT) (C) -1.6 1.7 5.9 13.2 17.1 21.7 24.8 23.5 21.3 11.9 5.3 3.6 12.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.7 48.7 116.4 80.6 39.5 0.0 0.0 0.0 286.0 HEATING DEG. DAYS(BASE 18 0C) 608.8 456.1 375.0 147.9 49.4 3.3 0.0 0.0 8.4 194.0 379.8 446.8 2669.6 DEWPOINT (MEAN C) -6.5 -3.2 -1.9 4.3 8.4 9.2 10.8 8.0 7.9 0.2 0.6 -1.9 3.0 MIXING RATIO (G/KG) 2.74 3.51 3.85 6.01 7.99 8.61 9.48 7.98 8.00 4.61 4.59 3.77 5.93 VAPOUR PRESSURE (HPA) 3.91 5.00 5.48 8.51 11.28 12.12 13.34 11.28 11.31 6.60 6.56 5.40 8.40 SATURATION DEF. (HPA) 1.69 1.88 3.96 6.74 8.39 14.43 17.31 18.39 14.24 7.64 2.29 2.19 8.26 RELATIVE HUMIDITY (MEAN %) 74 76 66 64 62 53 48 42 50 51 78 76 62 RELATIVE HUMIDITY (MAX. %) 88 90 87 85 84 78 74 66 73 76 91 91 82 RELATIVE HUMIDITY (MIN. %) 57 58 41 41 40 34 28 23 28 31 61 53 41 RELATIVE HUMIDITY (MEAN% 03UTC) 83 85 82 81 80 69 67 60 66 71 86 87 76 RELATIVE HUMIDITY (MEAN% 09UTC) 64 68 54 50 46 40 33 30 35 38 66 62 49 RELATIVE HUMIDITY (MEAN% 15UTC) 73 75 58 53 52 41 36 30 40 40 80 72 54 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 18.1 50.7 45.7 66.0 17.1 8.3 0.8 0.5 0.2 1.0 38.6 6.8 253.8 DAYS WITH PRECIPITATION >=10 0 2 2 2 0 0 0 0 0 0 2 0 8 DAYS WITH PRECIPITATION >= 5 1 4 2 4 0 0 0 0 0 0 3 0 14 DAYS WITH PRECIPITATION >= 1 7 9 10 9 5 3 0 0 0 1 7 3 54 DAYS WITH PRECIPITATION 11 14 14 13 12 7 1 3 3 2 17 8 105 GREATEST DAILY PRECIPITATION 5.1 13.2 17.5 18.2 4.0 3.0 0.8 0.5 0.1 1.0 10.3 1.6 18.2 DAY 19 3 9 13 6 4 8 22 25 29 29 20 DAY WITH THUNDER STORM 0 0 2 5 6 3 1 1 0 0 2 0 20 DAYS WITH SNOW OR SLEET 9 7 6 0 0 0 0 0 0 0 8 6 36 DAYS WITH DUST 0 0 0 1 2 5 1 0 3 1 1 0 14 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 13.4 12.4 15.0 15.8 14.2 14.9 15.4 13.6 13.9 14.1 11.7 10.3 14.0 PREVAILING WIND PERCENT 14.2 24.6 28.2 27.9 34.3 42.1 52.4 39.9 43.3 31.5 32.9 12.9 32.0 CALMS PERCENT OF WIND 72.8 61.6 51.6 58.3 54.0 41.3 26.2 39.9 47.1 62.1 61.3 81.5 54.8 NO. OF WIND OBSERVATION 246 224 248 240 248 240 248 248 240 248 240 248 2918 VECTOR WIND DIRECTION (MEAN) 252 263 258 273 281 279 287 286 277 273 273 287 276 VECTOR WIND MAGNITUDE(KNOTS) 1.9 3.2 3.5 4.4 4.7 5.5 8.4 5.8 5.6 4.5 3.8 1.3 4.3 WIND STEADINESES (MEAN %) 51.4 66.7 47.9 77.2 78.3 67.1 81.6 76.3 82.4 88.2 86.4 72.2 71.7 WIND SPEED (MEAN KNOTS) 3.7 4.8 7.3 5.7 6.0 8.2 10.3 7.6 6.8 5.1 4.4 1.8 6.0 FASTEST WIND DIRECTION 270 270 280 280 290 280 280 270 270 270 150 290 280 FASTEST WIND SPEED (KNOTS) 39 68 78 49 39 54 43 39 29 35 39 23 78 DAY 19 16 23 5 4 21 12 22 8 29 9 19 DAYS WITH SKY CLEAR (0-2)/8 13 8 10 4 6 19 27 26 23 22 7 11 176 DAYS WITH P.CLOUDY (3-6)/8 8 6 8 15 19 8 4 5 7 9 7 13 109 DAYS WITH CLOUDY (7-8)/8 10 14 13 11 6 3 0 0 0 0 16 7 80 DAYS WITH VISIBILITY =< 2 KM 9 7 5 1 0 0 0 0 0 1 3 5 31 DURATION OF SUNSHINE HOURS 138.1 118.9 180.8 193.1 227.1 301.3 333.4 327.5 258.6 248.9 ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 893.5 893.2 891.6 890.1 890.4 889.0 889.3 890.6 891.6 897.8 895.1 895.7 892.3 MAX. QFE PRESSURE IN HPA 906.0 903.3 900.8 898.9 899.2 899.4 894.9 895.3 900.4 904.5 903.2 901.7 906.0 DAY-HOUR 6- 6 9- 6 16- 6 1- 6 9- 6 22-18 27- 6 29- 3 23- 6 20- 6 22- 6 27- 6 MIN. QFE PRESSURE IN HPA 880.0 885.4 879.7 881.5 885.8 884.2 884.5 883.4 884.3 887.2 882.9 888.1 879.7 DAY-HOUR 8-12 21-12 22- 0 20-21 14- 9 16-15 24-15 12-12 3-15 1-12 14- 0 5-12 MEAN QNH PRESSURE IN HPA 1018.1 1017.7 1016.0 1014.3 1014.7 1013.1 1013.4 1014.9 1016.0 1022.9 1019.9 1020.5 1016.8 MAX. QNH PRESSURE IN HPA 1032.0 1029.0 1026.2 1024.1 1024.5 1024.7 1019.7 1020.1 1025.8 1030.3 1028.9 1027.2 1032.0 DAY-HOUR 6- 6 9- 6 16- 6 1- 6 9- 6 22-18 27- 6 29- 3 23- 6 20- 6 22- 6 27- 6 MIN. QNH PRESSURE IN HPA 1003.1 1009.1 1002.8 1004.8 1009.6 1007.8 1008.1 1006.9 1007.9 1011.1 1006.3 1012.1 1002.8 DAY-HOUR 8-12 21-12 22- 0 20-21 14- 9 16-15 24-15 12-12 3-15 1-12 14- 0 5-12 MEAN QFF PRESSURE IN HPA 1023.0 1021.1 1017.4 1012.0 1010.4 1006.8 1005.9 1007.7 1010.0 1021.4 1021.5 1023.2 1015.1 MAX. QFF PRESSURE IN HPA 1037.5 1033.1 1030.5 1022.7 1024.4 1021.8 1012.1 1013.7 1021.9 1029.8 1032.9 1032.3 1037.5 DAY-HOUR 6- 6 17- 6 16- 6 1- 6 9- 6 22-18 27- 6 24- 3 23- 3 8- 3 30- 6 6-18 MIN. QFF PRESSURE IN HPA 1007.0 1008.0 1001.7 999.2 1003.4 999.6 999.7 998.5 999.8 1005.0 1004.4 1014.5 998.5 DAY-HOUR 9- 9 3- 0 22- 0 20-21 23- 9 16-15 1-15 12-12 3-12 1-12 10-12 4-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 893.2 892.6 891.0 890.0 890.3 888.9 889.4 890.5 891.9 897.8 894.8 895.5 892.2 MAX. QFE PRESSURE IN HPA 903.6 900.9 898.7 898.0 897.3 897.9 894.0 895.2 899.4 902.9 902.6 900.7 903.6 DAY 6 10 17 1 9 23 28 29 23 20 22 27 MIN. QFE PRESSURE IN HPA 881.9 885.8 879.7 884.5 886.5 884.9 884.9 885.0 885.4 890.3 882.9 888.2 879.7 DAY 9 3 22 12 14 17 25 13 14 1 14 5 MEAN QNH PRESSURE IN HPA 1017.8 1017.1 1015.4 1014.2 1014.5 1013.0 1013.5 1014.8 1016.3 1022.9 1019.6 1020.3 1016.6 MAX. QNH PRESSURE IN HPA 1029.3 1026.3 1023.9 1023.1 1022.3 1023.0 1018.7 1020.0 1024.7 1028.6 1028.2 1026.1 1029.3 DAY 6 10 17 1 9 23 28 29 23 20 22 27 MIN. QNH PRESSURE IN HPA 1005.2 1009.6 1002.8 1008.1 1010.3 1008.6 1008.6 1008.7 1009.1 1014.6 1006.3 1012.2 1002.8 DAY 9 3 22 12 14 17 25 13 14 1 14 5 MEAN QFF PRESSURE IN HPA 1022.4 1020.1 1016.5 1011.7 1010.3 1006.8 1005.8 1007.5 1009.9 1021.0 1020.8 1022.5 1014.6 MAX. QFF PRESSURE IN HPA 1034.9 1031.8 1028.4 1021.7 1021.8 1020.0 1010.9 1012.3 1020.7 1028.5 1031.5 1029.1 1034.9 DAY 7 17 17 1 9 23 28 24 23 8 22 7 MIN. QFF PRESSURE IN HPA 1009.4 1008.0 1001.7 1001.9 1006.1 1000.6 1000.9 1000.5 1001.0 1009.5 1006.8 1014.7 1000.5 DAY 29 3 22 12 23 18 25 13 14 1 10 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 893.6 893.1 891.7 890.7 890.7 889.6 890.2 891.5 892.5 898.4 895.3 896.0 892.8 MAX. QFE PRESSURE IN HPA 904.7 901.1 899.3 898.5 898.4 898.2 894.4 895.3 899.8 903.6 902.6 901.2 904.7 DAY 6 9 16 1 9 23 27 29 23 20 22 27 MIN. QFE PRESSURE IN HPA 881.9 885.8 880.4 885.7 886.3 885.9 886.9 886.4 886.3 890.5 884.1 888.6 880.4 DAY 9 3 22 14 14 17 25 13 14 1 14 5 MEAN QNH PRESSURE IN HPA 1018.2 1017.7 1016.1 1015.0 1015.0 1013.8 1014.5 1015.9 1017.0 1023.6 1020.1 1020.9 1017.3 MAX. QNH PRESSURE IN HPA 1030.6 1026.6 1024.6 1023.7 1023.6 1023.3 1019.1 1020.1 1025.1 1029.3 1028.2 1026.7 1030.6 DAY 6 9 16 1 9 23 27 29 23 20 22 27 MIN. QNH PRESSURE IN HPA 1005.2 1009.6 1003.5 1009.4 1010.1 1009.7 1010.8 1010.2 1010.1 1014.8 1007.7 1012.7 1003.5 DAY 9 3 22 14 14 17 25 13 14 1 14 5 MEAN QFF PRESSURE IN HPA 1023.9 1021.4 1017.9 1013.1 1010.9 1007.6 1007.0 1009.1 1011.7 1023.0 1022.1 1024.2 1016.0 MAX. QFF PRESSURE IN HPA 1035.8 1032.4 1029.4 1022.6 1023.7 1020.3 1011.5 1013.7 1021.9 1029.8 1031.8 1028.9 1035.8 DAY 6 17 17 1 9 23 28 24 23 8 22 7 MIN. QFF PRESSURE IN HPA 1009.3 1009.5 1003.5 1005.7 1005.7 1001.4 1002.1 1002.5 1003.8 1011.0 1008.1 1015.8 1001.4 DAY 9 3 22 9 20 17 1 12 14 1 11 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 894.4 894.2 892.6 891.2 891.1 889.8 890.2 891.8 893.0 899.2 896.0 896.9 893.4 MAX. QFE PRESSURE IN HPA 906.0 903.3 900.8 898.9 899.2 899.0 894.9 894.6 900.4 904.5 903.2 901.7 906.0 DAY 6 9 16 1 9 22 27 18 23 20 22 27 MIN. QFE PRESSURE IN HPA 882.2 885.8 881.9 886.6 886.4 885.8 887.2 886.2 887.5 890.2 884.6 889.3 881.9 DAY 9 21 22 14 14 4 1 12 14 1 14 5 MEAN QNH PRESSURE IN HPA 1019.1 1018.9 1017.1 1015.5 1015.4 1014.0 1014.5 1016.2 1017.5 1024.4 1020.9 1021.9 1018.0 MAX. QNH PRESSURE IN HPA 1032.0 1029.0 1026.2 1024.1 1024.5 1024.2 1019.7 1019.3 1025.8 1030.3 1028.9 1027.2 1032.0 DAY 6 9 16 1 9 22 27 18 23 20 22 27 MIN. QNH PRESSURE IN HPA 1005.6 1009.6 1005.2 1010.4 1010.2 1009.6 1011.1 1010.0 1011.4 1014.4 1008.2 1013.4 1005.2 DAY 9 21 22 14 14 4 1 12 14 1 14 5 MEAN QFF PRESSURE IN HPA 1024.3 1022.6 1018.8 1013.4 1011.3 1007.7 1007.0 1009.2 1011.6 1022.9 1022.5 1025.1 1016.4 MAX. QFF PRESSURE IN HPA 1037.5 1033.1 1030.5 1022.7 1024.4 1021.2 1012.1 1013.6 1021.5 1029.1 1032.9 1030.1 1037.5 DAY 6 17 16 1 9 22 27 24 23 8 30 6 MIN. QFF PRESSURE IN HPA 1008.7 1010.5 1006.4 1005.8 1004.3 1002.3 1002.0 1001.9 1003.5 1009.7 1007.7 1016.5 1001.9 DAY 9 21 22 9 23 18 1 12 14 1 11 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 893.4 893.5 891.9 890.2 890.4 889.0 889.2 890.7 891.6 897.7 895.0 895.6 892.3 MAX. QFE PRESSURE IN HPA 905.0 902.5 900.5 896.9 898.5 899.0 894.3 893.6 898.2 903.0 902.6 900.9 905.0 DAY 6 9 16 1 9 22 27 24 23 20 22 6 MIN. QFE PRESSURE IN HPA 881.2 886.1 882.6 884.8 885.8 884.7 885.9 885.1 886.4 887.8 884.6 888.4 881.2 DAY 9 21 22 14 14 4 1 12 3 1 10 5 MEAN QNH PRESSURE IN HPA 1017.9 1018.1 1016.3 1014.4 1014.7 1013.1 1013.3 1015.0 1016.0 1022.8 1019.7 1020.4 1016.8 MAX. QNH PRESSURE IN HPA 1030.9 1028.1 1025.9 1021.9 1023.7 1024.2 1019.0 1018.2 1023.3 1028.7 1028.2 1026.3 1030.9 DAY 6 9 16 1 9 22 27 24 23 20 22 6 MIN. QNH PRESSURE IN HPA 1004.4 1009.9 1006.0 1008.4 1009.6 1008.3 1009.7 1008.8 1010.2 1011.8 1008.2 1012.4 1004.4 DAY 9 21 22 14 14 4 1 12 3 1 10 5 MEAN QFF PRESSURE IN HPA 1022.5 1021.2 1017.4 1011.9 1010.1 1006.6 1005.6 1007.6 1009.6 1020.6 1021.0 1022.8 1014.7 MAX. QFF PRESSURE IN HPA 1035.6 1031.6 1030.1 1020.7 1023.4 1020.9 1011.5 1012.6 1018.4 1027.6 1032.1 1030.3 1035.6 DAY 6 9 16 24 9 22 27 24 23 8 30 6 MIN. QFF PRESSURE IN HPA 1007.0 1011.0 1004.8 1003.9 1003.4 1000.7 1000.3 1000.3 1001.5 1005.5 1005.5 1015.3 1000.3 DAY 9 21 8 20 23 16 1 12 3 1 10 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 892.7 892.6 891.0 889.1 889.7 888.2 888.1 889.5 890.4 896.8 894.5 894.8 891.4 MAX. QFE PRESSURE IN HPA 904.3 901.7 899.6 895.0 898.5 898.7 893.3 892.8 897.2 901.8 902.3 900.9 904.3 DAY 6 9 16 1 9 22 27 24 22 20 21 6 MIN. QFE PRESSURE IN HPA 880.0 885.4 882.2 883.0 886.1 884.5 884.6 883.4 884.5 887.2 883.9 888.1 880.0 DAY 8 21 21 8 3 16 12 12 3 1 10 5 MEAN QNH PRESSURE IN HPA 1017.2 1017.1 1015.4 1013.2 1013.9 1012.2 1012.2 1013.7 1014.6 1021.7 1019.2 1019.5 1015.8 MAX. QNH PRESSURE IN HPA 1030.1 1027.2 1024.9 1019.8 1023.7 1023.9 1017.9 1017.3 1022.2 1027.3 1027.9 1026.3 1030.1 DAY 6 9 16 1 9 22 27 24 22 20 21 6 MIN. QNH PRESSURE IN HPA 1003.1 1009.1 1005.6 1006.4 1009.9 1008.1 1008.2 1006.9 1008.1 1011.1 1007.4 1012.1 1003.1 DAY 8 21 21 8 3 16 12 12 3 1 10 5 MEAN QFF PRESSURE IN HPA 1021.8 1020.3 1016.4 1010.8 1009.7 1006.0 1004.6 1006.4 1008.4 1019.9 1020.5 1021.6 1013.9 MAX. QFF PRESSURE IN HPA 1035.5 1030.9 1028.9 1019.9 1023.2 1020.6 1010.1 1011.6 1017.5 1026.6 1031.1 1030.3 1035.5 DAY 6 9 16 23 9 22 27 24 22 8 30 6 MIN. QFF PRESSURE IN HPA 1008.2 1009.8 1002.9 1001.3 1004.9 1000.1 999.9 998.5 999.8 1005.0 1004.4 1014.6 998.5 DAY 8 21 8 20 23 16 24 12 3 1 10 28 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 893.3 893.0 891.3 889.2 889.9 888.3 888.3 889.6 890.5 897.1 895.1 895.4 891.8 MAX. QFE PRESSURE IN HPA 904.7 902.7 899.6 895.3 898.5 898.7 893.5 893.9 897.9 901.8 902.8 901.6 904.7 DAY 6 9 16 23 9 22 27 28 22 20 21 6 MIN. QFE PRESSURE IN HPA 881.0 886.1 882.0 881.9 887.0 884.2 884.5 883.4 884.3 887.5 883.9 888.2 881.0 DAY 8 21 21 20 13 16 24 12 3 1 10 4 MEAN QNH PRESSURE IN HPA 1017.9 1017.6 1015.7 1013.4 1014.1 1012.3 1012.3 1013.8 1014.7 1022.2 1019.9 1020.2 1016.2 MAX. QNH PRESSURE IN HPA 1030.6 1028.3 1024.9 1020.1 1023.7 1023.9 1018.1 1018.6 1023.0 1027.3 1028.5 1027.1 1030.6 DAY 6 9 16 23 9 22 27 28 22 20 21 6 MIN. QNH PRESSURE IN HPA 1004.2 1009.9 1005.3 1005.2 1010.9 1007.8 1008.1 1006.9 1007.9 1011.4 1007.4 1012.2 1004.2 DAY 8 21 21 20 13 16 24 12 3 1 10 4 MEAN QFF PRESSURE IN HPA 1023.5 1021.3 1017.5 1011.4 1010.0 1006.1 1005.0 1006.9 1009.4 1021.6 1022.0 1023.4 1014.8 MAX. QFF PRESSURE IN HPA 1036.9 1032.1 1029.4 1021.6 1023.5 1021.0 1010.7 1012.1 1019.1 1028.2 1032.1 1032.0 1036.9 DAY 6 9 16 23 9 22 27 24 22 7 30 6 MIN. QFF PRESSURE IN HPA 1009.1 1010.9 1005.1 1000.0 1005.6 999.6 999.7 999.0 1000.7 1007.2 1004.9 1015.9 999.0 DAY 8 21 8 20 23 16 1 12 3 1 10 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 893.8 893.4 892.0 890.2 890.8 889.4 889.6 890.7 891.6 897.9 895.5 895.9 892.6 MAX. QFE PRESSURE IN HPA 904.7 903.0 900.0 896.1 898.5 899.4 894.6 895.2 898.9 902.7 902.8 901.0 904.7 DAY 6 9 16 24 9 22 27 28 22 16 21 6 MIN. QFE PRESSURE IN HPA 881.2 887.0 882.4 882.1 887.6 884.9 884.8 884.7 885.1 888.1 884.3 888.4 881.2 DAY 8 21 21 20 6 16 24 12 13 28 10 4 MEAN QNH PRESSURE IN HPA 1018.5 1018.0 1016.5 1014.5 1015.2 1013.5 1013.8 1015.0 1016.0 1023.0 1020.3 1020.7 1017.1 MAX. QNH PRESSURE IN HPA 1030.6 1028.7 1025.3 1021.0 1023.7 1024.7 1019.3 1020.0 1024.1 1028.3 1028.5 1026.5 1030.6 DAY 6 9 16 24 9 22 27 28 22 16 21 6 MIN. QNH PRESSURE IN HPA 1004.4 1010.9 1005.8 1005.4 1011.6 1008.6 1008.4 1008.3 1008.8 1012.1 1007.9 1012.4 1004.4 DAY 8 21 21 20 6 16 24 12 13 28 10 4 MEAN QFF PRESSURE IN HPA 1023.6 1021.7 1018.1 1012.3 1011.0 1007.3 1006.4 1007.9 1010.1 1021.6 1022.0 1023.8 1015.5 MAX. QFF PRESSURE IN HPA 1037.2 1032.7 1029.6 1022.6 1023.6 1021.8 1012.1 1012.1 1019.6 1028.7 1031.9 1032.3 1037.2 DAY 6 9 16 23 9 22 27 24 22 7 30 6 MIN. QFF PRESSURE IN HPA 1008.6 1011.4 1005.8 999.5 1005.9 1001.0 1000.6 1000.4 1001.2 1007.3 1004.4 1015.6 999.5 DAY 8 21 21 20 31 16 24 12 13 1 10 4 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 893.5 893.0 891.7 890.0 890.5 889.1 889.5 890.6 891.7 898.0 895.1 895.7 892.4 MAX. QFE PRESSURE IN HPA 903.6 902.0 899.8 895.4 897.7 899.0 894.0 895.2 898.9 902.7 902.6 900.4 903.6 DAY 6 9 16 24 9 22 27 28 22 16 21 26 MIN. QFE PRESSURE IN HPA 881.2 886.8 881.5 881.5 886.8 884.9 884.7 885.1 885.4 887.7 883.7 888.2 881.2 DAY 8 6 21 20 6 16 24 12 13 28 13 4 MEAN QNH PRESSURE IN HPA 1018.1 1017.5 1016.1 1014.2 1014.8 1013.3 1013.6 1014.9 1016.1 1023.1 1019.9 1020.5 1016.8 MAX. QNH PRESSURE IN HPA 1029.3 1027.6 1025.1 1020.2 1022.8 1024.2 1018.7 1020.0 1024.1 1028.3 1028.2 1025.8 1029.3 DAY 6 9 16 24 9 22 27 28 22 16 21 26 MIN. QNH PRESSURE IN HPA 1004.4 1010.7 1004.8 1004.8 1010.7 1008.6 1008.3 1008.8 1009.1 1011.7 1007.2 1012.2 1004.4 DAY 8 6 21 20 6 16 24 12 13 28 13 4 MEAN QFF PRESSURE IN HPA 1022.6 1020.6 1017.1 1011.7 1010.2 1006.7 1005.9 1007.5 1009.7 1020.9 1021.3 1022.8 1014.7 MAX. QFF PRESSURE IN HPA 1035.4 1032.5 1029.5 1022.0 1022.4 1021.0 1011.0 1012.5 1019.3 1028.6 1031.2 1030.0 1035.4 DAY 6 16 16 23 9 22 27 23 22 7 21 6 MIN. QFF PRESSURE IN HPA 1008.3 1012.1 1003.8 999.2 1005.1 1000.5 1000.5 1000.1 1000.7 1006.3 1006.3 1014.5 999.2 DAY 8 2 21 20 31 16 24 12 3 28 10 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.3 -0.0 6.6 12.3 17.9 20.3 24.0 24.3 17.0 11.9 9.4 1.3 12.2 MINIMUN AIR TEMPERATURE (C) -2.3 -3.6 2.1 6.0 10.4 14.0 17.3 18.1 9.5 6.0 4.6 -2.9 6.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH MINIMUM TEMP. <=-4 11 13 0 1 0 0 0 0 0 0 0 15 40 DAYS WITH FREEZING MIN.<= 0 26 25 8 5 0 0 0 0 0 2 6 24 96 TEMPERATURE RECORDS LOWEST(C) -8.4 -9.2 -2.0 -5.4 4.6 9.0 14.0 14.4 3.6 -0.6 -0.6 -8.6 -9.2 DAY 22 11 3 5 8 7 4 10 16 27 11 28 MAXIMUM AIR TEMPERATURE (C) 6.8 5.2 13.1 19.5 25.7 27.6 31.8 32.0 25.1 18.9 16.6 7.6 19.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 5 9 22 24 0 0 0 0 62 DAYS WITH MAXIMUM TEMP. <= 0 0 4 0 0 0 0 0 0 0 0 0 1 5 TEMPERATURE RECORDS HIGHEST(C) 15.0 16.2 21.0 31.0 32.6 34.8 39.6 37.4 29.6 25.6 22.5 15.2 39.6 DAY 31 1 21 25 28 16 20 29 1 19 8 3 DIF. BETWEEN (MAX.-MIN.) (C) 9.1 8.8 11.0 13.5 15.3 13.6 14.5 13.9 15.6 12.9 12.0 10.5 12.6 MEAN DAILY TEMP. (MDT) (C) 2.2 0.8 7.6 12.8 18.1 20.8 24.6 25.0 17.3 12.5 10.6 2.4 12.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.3 7.3 28.1 111.7 125.1 3.9 0.0 0.0 0.0 276.4 HEATING DEG. DAYS(BASE 18 0C) 488.7 481.0 321.7 167.3 31.9 9.7 0.0 0.0 38.4 171.6 222.3 484.2 2416.8 DEWPOINT (MEAN C) -2.6 -4.9 1.2 3.5 6.5 9.6 10.5 11.9 1.2 3.3 2.9 -5.3 3.1 MIXING RATIO (G/KG) 3.64 3.10 4.79 5.80 7.04 8.77 9.32 10.37 5.19 5.72 5.44 3.08 6.02 VAPOUR PRESSURE (HPA) 5.19 4.41 6.81 8.23 9.96 12.34 13.08 14.54 7.39 8.16 7.74 4.39 8.52 SATURATION DEF. (HPA) 1.79 1.96 3.41 7.31 11.67 12.64 17.99 16.85 12.92 6.42 4.62 2.77 8.36 RELATIVE HUMIDITY (MEAN %) 78 73 73 60 53 55 47 51 40 61 68 65 60 RELATIVE HUMIDITY (MAX. %) 92 91 92 84 80 77 71 78 63 83 86 82 82 RELATIVE HUMIDITY (MIN. %) 59 53 50 37 30 37 28 29 20 39 46 41 39 RELATIVE HUMIDITY (MEAN% 03UTC) 85 82 87 80 70 69 66 73 58 80 83 76 76 RELATIVE HUMIDITY (MEAN% 09UTC) 69 63 61 44 36 41 33 34 26 45 55 51 47 RELATIVE HUMIDITY (MEAN% 15UTC) 76 69 66 48 41 46 35 38 30 54 61 59 52 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 63.8 33.2 42.8 10.1 24.4 4.1 0.0 0.0 1.0 29.8 37.8 13.2 260.2 DAYS WITH PRECIPITATION >=10 3 2 1 0 0 0 0 0 0 0 2 0 8 DAYS WITH PRECIPITATION >= 5 7 2 3 0 2 0 0 0 0 3 3 1 21 DAYS WITH PRECIPITATION >= 1 8 6 6 2 4 1 0 0 0 6 6 2 41 DAYS WITH PRECIPITATION 14 11 9 12 9 4 0 0 4 10 9 12 94 GREATEST DAILY PRECIPITATION 12.0 12.0 20.0 4.7 9.0 4.0 0.0 0.0 0.6 8.4 14.4 6.1 20.0 DAY 6 24 12 4 6 5 ** ** 14 16 26 1 DAY WITH THUNDER STORM 0 0 1 0 6 2 0 0 0 0 1 0 10 DAYS WITH SNOW OR SLEET 11 10 3 2 0 0 0 0 0 0 0 8 34 DAYS WITH DUST 0 1 0 0 1 4 3 3 0 0 0 0 12 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 11.3 12.7 13.1 12.6 13.4 17.2 15.8 14.1 12.0 12.5 12.2 12.1 13.9 PREVAILING WIND PERCENT 16.1 39.7 26.6 34.2 29.8 57.9 62.5 56.9 39.2 22.2 17.1 15.7 34.8 CALMS PERCENT OF WIND 70.6 49.6 64.9 50.8 52.0 32.5 26.6 29.8 50.0 69.0 68.8 71.8 53.1 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 279 272 279 284 281 279 279 283 280 282 255 240 278 VECTOR WIND MAGNITUDE(KNOTS) 1.8 4.9 3.3 3.9 4.2 9.9 9.7 7.6 4.7 3.1 1.8 1.7 4.7 WIND STEADINESES (MEAN %) 58.1 76.6 75.0 68.4 73.7 91.7 89.0 84.4 83.9 86.1 48.6 48.6 78.3 WIND SPEED (MEAN KNOTS) 3.1 6.4 4.4 5.7 5.7 10.8 10.9 9.0 5.6 3.6 3.7 3.5 6.0 FASTEST WIND DIRECTION 280 280 280 280 300 280 280 280 280 270 280 270 280 FASTEST WIND SPEED (KNOTS) 31 39 35 49 39 52 39 35 27 39 49 49 52 DAY 20 1 12 11 13 5 8 4 14 31 26 20 DAYS WITH SKY CLEAR (0-2)/8 12 7 7 9 15 19 27 28 25 14 15 12 190 DAYS WITH P.CLOUDY (3-6)/8 9 12 9 17 13 7 4 3 5 13 7 11 110 DAYS WITH CLOUDY (7-8)/8 10 9 15 4 3 4 0 0 0 4 8 8 65 DAYS WITH VISIBILITY =< 2 KM 6 1 3 1 0 0 0 0 0 2 2 1 16 DURATION OF SUNSHINE HOURS 116.9 141.2 144.2 237.9 294.2 279.1 321.3 319.1 290.4 220.3 175.9 168.3 2708.8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 892.8 891.5 891.4 892.0 890.6 887.7 886.7 888.1 895.3 896.5 892.1 893.9 891.6 MAX. QFE PRESSURE IN HPA 904.1 903.6 898.8 905.0 897.8 892.1 891.0 893.2 902.3 901.8 900.3 902.6 905.0 DAY-HOUR 9-18 18- 6 1- 6 5- 6 18-18 9- 3 2- 3 15- 6 23- 6 23- 6 2- 6 22- 6 MIN. QFE PRESSURE IN HPA 880.6 876.2 880.3 882.4 881.6 882.1 880.9 882.0 889.1 888.5 877.9 875.5 875.5 DAY-HOUR 16-12 1-12 7-18 2- 3 1-12 16- 0 20-12 2-12 2-15 14-12 26- 3 4- 0 MEAN QNH PRESSURE IN HPA 1017.3 1015.9 1015.7 1016.5 1014.8 1011.6 1010.6 1012.1 1020.1 1021.5 1016.6 1018.6 1015.9 MAX. QNH PRESSURE IN HPA 1029.9 1029.3 1024.0 1030.9 1022.9 1016.6 1015.3 1017.8 1027.9 1027.3 1025.7 1028.2 1030.9 DAY-HOUR 9-18 18- 6 1- 6 5- 6 18-18 9- 3 2- 3 15- 6 23- 6 23- 6 2- 6 22- 6 MIN. QNH PRESSURE IN HPA 1003.8 998.9 1003.4 1005.8 1004.9 1005.4 1004.1 1005.3 1013.2 1012.6 1000.8 998.1 998.1 DAY-HOUR 16-12 1-12 7-18 2- 3 1-12 16- 0 20-12 2-12 2-15 14-12 26- 3 4- 0 MEAN QFF PRESSURE IN HPA 1020.5 1019.7 1016.2 1014.4 1010.1 1005.6 1002.9 1004.3 1015.9 1019.6 1015.7 1021.8 1013.9 MAX. QFF PRESSURE IN HPA 1034.5 1034.7 1027.2 1035.2 1021.2 1011.8 1009.9 1010.8 1024.3 1026.6 1024.1 1034.5 1035.2 DAY-HOUR 9-18 18- 6 1- 6 5- 6 18-18 5-18 2- 3 6-18 23- 6 24- 6 3- 6 8- 3 MIN. QFF PRESSURE IN HPA 1005.1 996.6 999.8 1002.0 999.8 997.5 994.6 996.4 1006.9 1010.2 999.1 994.9 994.6 DAY-HOUR 16-12 1-12 7-18 30-21 1- 9 16- 0 20-12 2-12 1- 0 14-12 26- 3 4- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 892.8 891.1 891.0 892.1 890.2 887.7 887.1 888.1 895.1 896.5 892.1 893.7 891.5 MAX. QFE PRESSURE IN HPA 903.1 902.3 898.1 902.2 896.4 891.0 890.6 891.8 901.0 901.4 898.4 902.1 903.1 DAY 10 18 1 5 19 9 2 8 23 24 3 22 MIN. QFE PRESSURE IN HPA 882.5 882.9 883.8 882.6 882.0 882.1 882.9 883.1 890.7 889.6 880.1 875.5 875.5 DAY 17 9 13 2 1 16 31 2 1 15 26 4 MEAN QNH PRESSURE IN HPA 1017.4 1015.4 1015.4 1016.6 1014.5 1011.7 1011.0 1012.2 1019.9 1021.4 1016.6 1018.4 1015.9 MAX. QNH PRESSURE IN HPA 1028.8 1027.9 1023.2 1027.8 1021.3 1015.3 1014.9 1016.2 1026.5 1026.9 1023.6 1027.7 1028.8 DAY 10 18 1 5 19 9 2 8 23 24 3 22 MIN. QNH PRESSURE IN HPA 1005.9 1006.3 1007.3 1006.0 1005.3 1005.4 1006.3 1006.6 1015.0 1013.8 1003.2 998.1 998.1 DAY 17 9 13 2 1 16 31 2 1 15 26 4 MEAN QFF PRESSURE IN HPA 1020.1 1018.8 1015.6 1014.2 1009.8 1005.5 1003.2 1004.0 1015.4 1019.2 1015.2 1021.2 1013.5 MAX. QFF PRESSURE IN HPA 1033.9 1033.0 1026.0 1032.2 1019.8 1010.6 1009.4 1009.4 1022.2 1025.0 1022.3 1033.9 1033.9 DAY 10 18 1 5 19 6 2 7 23 25 3 8 MIN. QFF PRESSURE IN HPA 1006.5 1006.1 1006.2 1002.4 1001.3 997.5 996.5 997.7 1006.9 1011.2 1001.3 994.9 994.9 DAY 17 1 8 2 1 16 31 2 1 15 26 4 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 893.0 891.5 891.7 892.8 891.0 888.5 887.9 889.2 896.0 897.0 892.5 893.9 892.1 MAX. QFE PRESSURE IN HPA 903.0 902.9 898.4 903.4 897.2 892.1 891.0 892.5 901.8 901.5 899.1 902.1 903.4 DAY 10 18 1 5 19 9 2 8 23 24 2 22 MIN. QFE PRESSURE IN HPA 884.1 882.7 884.0 882.4 883.0 883.5 883.7 884.3 891.7 890.6 877.9 875.6 875.6 DAY 17 12 15 2 1 16 31 2 1 15 26 4 MEAN QNH PRESSURE IN HPA 1017.5 1015.9 1016.2 1017.3 1015.3 1012.6 1011.9 1013.3 1020.8 1022.0 1017.0 1018.6 1016.5 MAX. QNH PRESSURE IN HPA 1028.7 1028.6 1023.6 1029.1 1022.2 1016.6 1015.3 1017.0 1027.3 1027.0 1024.3 1027.7 1029.1 DAY 10 18 1 5 19 9 2 8 23 24 2 22 MIN. QNH PRESSURE IN HPA 1007.7 1006.1 1007.6 1005.8 1006.4 1007.0 1007.2 1007.9 1016.1 1014.9 1000.8 998.2 998.2 DAY 17 12 15 2 1 16 31 2 1 15 26 4 MEAN QFF PRESSURE IN HPA 1021.2 1020.1 1017.1 1015.7 1010.8 1006.7 1004.5 1005.7 1017.3 1020.8 1016.7 1022.4 1014.9 MAX. QFF PRESSURE IN HPA 1034.4 1034.0 1026.7 1034.6 1021.0 1011.3 1009.9 1010.3 1024.0 1026.3 1023.9 1034.5 1034.6 DAY 10 18 1 5 19 6 2 7 23 25 3 8 MIN. QFF PRESSURE IN HPA 1009.6 1005.4 1007.6 1003.0 1002.1 999.1 998.2 999.6 1009.4 1013.8 999.1 996.0 996.0 DAY 17 1 12 2 6 16 20 2 1 15 26 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 894.0 892.3 892.4 893.1 891.3 888.5 887.7 889.4 896.5 897.6 893.1 894.9 892.6 MAX. QFE PRESSURE IN HPA 903.5 903.6 898.8 905.0 897.4 892.0 890.9 893.2 902.3 901.8 900.3 902.6 905.0 DAY 10 18 1 5 18 8 13 15 23 23 2 22 MIN. QFE PRESSURE IN HPA 885.8 882.5 883.2 883.0 883.0 883.7 883.5 884.5 891.7 891.6 879.4 878.3 878.3 DAY 16 1 15 2 1 16 20 2 1 14 26 4 MEAN QNH PRESSURE IN HPA 1018.6 1016.8 1016.9 1017.7 1015.7 1012.6 1011.7 1013.6 1021.4 1022.7 1017.7 1019.7 1017.1 MAX. QNH PRESSURE IN HPA 1029.2 1029.3 1024.0 1030.9 1022.5 1016.4 1015.2 1017.8 1027.9 1027.3 1025.7 1028.2 1030.9 DAY 10 18 1 5 18 8 13 15 23 23 2 22 MIN. QNH PRESSURE IN HPA 1009.6 1005.9 1006.7 1006.4 1006.4 1007.2 1007.0 1008.1 1016.1 1016.0 1002.4 1001.2 1001.2 DAY 16 1 15 2 1 16 20 2 1 14 26 4 MEAN QFF PRESSURE IN HPA 1022.2 1020.8 1017.7 1015.8 1010.9 1006.7 1004.3 1006.0 1017.2 1020.8 1017.0 1023.2 1015.2 MAX. QFF PRESSURE IN HPA 1034.3 1034.7 1027.2 1035.2 1020.8 1011.6 1009.3 1009.8 1024.3 1026.6 1024.1 1034.0 1035.2 DAY 10 18 1 5 18 8 1 7 23 24 3 8 MIN. QFF PRESSURE IN HPA 1011.6 1005.2 1006.3 1003.9 1001.6 999.3 997.7 999.5 1009.8 1013.6 1001.5 999.6 997.7 DAY 5 1 15 2 1 16 20 2 1 15 26 4 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 892.9 891.5 891.6 892.1 890.4 887.4 886.6 888.1 895.3 896.3 891.9 893.8 891.5 MAX. QFE PRESSURE IN HPA 902.1 903.1 898.4 903.9 897.2 892.0 890.0 891.8 901.3 901.0 899.7 901.4 903.9 DAY 9 18 31 5 18 8 13 15 23 23 2 22 MIN. QFE PRESSURE IN HPA 883.5 878.7 883.2 882.7 881.9 882.8 882.2 883.3 890.7 889.1 880.3 878.7 878.7 DAY 16 1 15 2 1 16 20 2 1 14 26 4 MEAN QNH PRESSURE IN HPA 1017.4 1015.9 1016.0 1016.5 1014.6 1011.4 1010.4 1012.1 1020.1 1021.3 1016.3 1018.5 1015.9 MAX. QNH PRESSURE IN HPA 1027.7 1028.8 1023.6 1029.7 1022.2 1016.4 1014.2 1016.2 1026.8 1026.5 1025.0 1026.9 1029.7 DAY 9 18 31 5 18 8 13 15 23 23 2 22 MIN. QNH PRESSURE IN HPA 1007.0 1001.7 1006.7 1006.1 1005.2 1006.2 1005.6 1006.8 1015.0 1013.2 1003.4 1001.7 1001.7 DAY 16 1 15 2 1 16 20 2 1 14 26 4 MEAN QFF PRESSURE IN HPA 1020.4 1019.4 1016.2 1014.2 1009.6 1005.0 1002.6 1004.1 1015.6 1018.9 1015.0 1021.3 1013.5 MAX. QFF PRESSURE IN HPA 1031.9 1034.3 1025.6 1033.1 1020.0 1011.1 1007.2 1008.3 1022.4 1025.5 1022.3 1032.0 1034.3 DAY 10 18 1 5 18 8 13 6 23 24 2 7 MIN. QFF PRESSURE IN HPA 1008.5 1000.7 1005.2 1003.8 999.8 997.5 995.4 997.9 1008.2 1010.8 1003.5 1001.6 995.4 DAY 5 1 7 26 1 16 20 2 1 14 26 4 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 892.0 890.5 890.5 891.1 889.7 886.5 885.3 886.8 894.2 895.6 891.3 893.0 890.5 MAX. QFE PRESSURE IN HPA 902.8 901.7 896.2 902.6 896.6 891.0 889.4 891.0 899.9 900.6 898.3 900.2 902.8 DAY 9 18 31 5 18 8 13 15 23 24 2 22 MIN. QFE PRESSURE IN HPA 880.6 876.2 882.3 882.7 881.6 882.3 880.9 882.0 889.5 888.5 883.0 880.1 876.2 DAY 16 1 7 2 1 16 20 2 2 14 26 4 MEAN QNH PRESSURE IN HPA 1016.5 1014.8 1014.8 1015.4 1013.9 1010.3 1009.0 1010.7 1018.9 1020.5 1015.6 1017.6 1014.8 MAX. QNH PRESSURE IN HPA 1028.5 1027.2 1021.1 1028.2 1021.6 1015.3 1013.6 1015.3 1025.2 1026.0 1023.5 1025.6 1028.5 DAY 9 18 31 5 18 8 13 15 23 24 2 22 MIN. QNH PRESSURE IN HPA 1003.8 998.9 1005.7 1006.1 1004.9 1005.7 1004.1 1005.3 1013.7 1012.6 1006.4 1003.2 998.9 DAY 16 1 7 2 1 16 20 2 2 14 26 4 MEAN QFF PRESSURE IN HPA 1019.1 1018.2 1014.9 1013.0 1009.2 1004.2 1001.3 1002.7 1014.5 1018.3 1014.3 1020.4 1012.5 MAX. QFF PRESSURE IN HPA 1033.0 1032.8 1023.2 1031.3 1019.5 1009.7 1007.3 1008.1 1020.9 1025.8 1021.2 1031.6 1033.0 DAY 9 18 24 5 18 8 1 6 23 24 2 7 MIN. QFF PRESSURE IN HPA 1005.1 996.6 1003.4 1004.2 1000.9 997.8 994.6 996.4 1007.0 1010.2 1005.7 1002.8 994.6 DAY 16 1 7 2 1 16 20 2 1 14 23 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 892.6 891.2 890.9 891.3 890.0 886.8 885.4 886.9 894.4 896.1 891.8 893.7 890.9 MAX. QFE PRESSURE IN HPA 903.7 901.9 896.6 902.4 897.1 890.7 889.5 890.8 899.8 901.0 898.7 901.3 903.7 DAY 9 18 24 5 18 8 13 6 22 23 2 7 MIN. QFE PRESSURE IN HPA 882.0 881.1 881.5 883.1 882.5 882.3 881.4 882.3 889.1 889.0 883.9 882.0 881.1 DAY 16 1 7 2 1 16 20 1 2 14 17 4 MEAN QNH PRESSURE IN HPA 1017.1 1015.5 1015.2 1015.6 1014.2 1010.6 1009.1 1010.8 1019.1 1021.0 1016.2 1018.3 1015.2 MAX. QNH PRESSURE IN HPA 1029.5 1027.5 1021.6 1028.0 1022.1 1015.0 1013.7 1015.1 1025.1 1026.5 1023.9 1026.8 1029.5 DAY 9 18 24 5 18 8 13 6 22 23 2 7 MIN. QNH PRESSURE IN HPA 1005.3 1004.3 1004.8 1006.6 1005.9 1005.7 1004.7 1005.7 1013.2 1013.1 1007.4 1005.3 1004.3 DAY 16 1 7 2 1 16 20 1 2 14 17 4 MEAN QFF PRESSURE IN HPA 1020.6 1019.8 1016.1 1013.9 1009.7 1004.8 1001.7 1003.3 1015.6 1019.9 1015.9 1022.1 1013.6 MAX. QFF PRESSURE IN HPA 1034.3 1033.3 1023.8 1032.0 1020.8 1009.6 1007.7 1009.3 1022.3 1025.9 1022.7 1033.8 1034.3 DAY 9 18 3 5 18 8 1 6 22 24 2 7 MIN. QFF PRESSURE IN HPA 1007.2 1004.0 1002.1 1005.2 1002.4 997.7 995.4 997.5 1007.0 1012.3 1005.8 1004.7 995.4 DAY 16 1 7 26 1 16 20 1 2 14 23 3 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 892.8 891.9 891.5 892.1 891.1 888.2 886.8 888.3 895.6 896.8 892.3 894.3 891.8 MAX. QFE PRESSURE IN HPA 904.1 902.6 897.4 901.9 897.8 891.4 890.6 892.0 901.3 901.3 898.9 901.8 904.1 DAY 9 17 24 5 18 8 13 6 22 11 2 21 MIN. QFE PRESSURE IN HPA 881.8 883.4 880.3 883.7 884.8 882.8 882.8 883.5 890.2 889.6 884.8 881.0 880.3 DAY 16 1 7 2 1 15 30 1 2 14 17 3 MEAN QNH PRESSURE IN HPA 1017.4 1016.4 1015.9 1016.6 1015.5 1012.2 1010.7 1012.4 1020.4 1021.8 1016.8 1019.0 1016.2 MAX. QNH PRESSURE IN HPA 1029.9 1028.2 1022.5 1027.5 1022.9 1015.8 1014.9 1016.4 1026.8 1026.8 1024.1 1027.3 1029.9 DAY 9 17 24 5 18 8 13 6 22 11 2 21 MIN. QNH PRESSURE IN HPA 1005.1 1006.9 1003.4 1007.2 1008.4 1006.2 1006.2 1007.0 1014.4 1013.8 1008.4 1004.2 1003.4 DAY 16 1 7 2 1 15 30 1 2 14 17 3 MEAN QFF PRESSURE IN HPA 1020.8 1020.3 1016.6 1014.6 1010.7 1006.4 1003.3 1004.7 1016.3 1019.9 1016.2 1022.5 1014.4 MAX. QFF PRESSURE IN HPA 1034.5 1033.8 1024.8 1031.2 1021.2 1011.8 1009.9 1010.8 1023.6 1025.8 1022.7 1034.1 1034.5 DAY 9 18 24 4 18 5 1 6 22 24 2 7 MIN. QFF PRESSURE IN HPA 1007.1 1006.7 999.8 1005.8 1003.7 998.8 997.2 998.5 1008.0 1011.7 1006.0 1002.9 997.2 DAY 16 1 7 25 13 15 30 1 2 14 17 3 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 892.5 891.9 891.3 892.0 891.0 887.9 887.0 888.4 895.5 896.6 892.0 894.1 891.7 MAX. QFE PRESSURE IN HPA 903.6 902.4 897.0 901.7 897.7 891.6 890.5 891.6 901.5 900.9 898.5 902.1 903.6 DAY 9 17 31 4 18 8 1 7 22 23 2 21 MIN. QFE PRESSURE IN HPA 881.0 883.8 882.0 882.6 884.5 882.9 882.9 883.3 891.2 889.6 882.9 878.1 878.1 DAY 16 8 7 30 1 15 30 1 2 14 25 3 MEAN QNH PRESSURE IN HPA 1017.0 1016.4 1015.7 1016.4 1015.3 1011.9 1010.9 1012.4 1020.3 1021.5 1016.4 1018.8 1016.1 MAX. QNH PRESSURE IN HPA 1029.3 1028.0 1022.0 1027.2 1022.8 1016.0 1014.8 1016.0 1027.0 1026.3 1023.7 1027.7 1029.3 DAY 9 17 31 4 18 8 1 7 22 23 2 21 MIN. QNH PRESSURE IN HPA 1004.2 1007.3 1005.3 1006.0 1008.1 1006.3 1006.3 1006.8 1015.6 1013.8 1006.3 1001.0 1001.0 DAY 16 8 7 30 1 15 30 1 2 14 25 3 MEAN QFF PRESSURE IN HPA 1020.0 1020.0 1015.8 1013.9 1010.2 1005.5 1002.9 1004.3 1015.8 1019.1 1015.2 1021.7 1013.7 MAX. QFF PRESSURE IN HPA 1034.0 1032.8 1023.6 1031.2 1021.1 1010.8 1009.0 1009.7 1022.8 1025.0 1021.9 1033.5 1034.0 DAY 9 18 24 4 18 5 1 6 22 24 2 7 MIN. QFF PRESSURE IN HPA 1005.6 1008.1 1002.9 1002.0 1002.9 998.0 995.1 997.9 1008.7 1010.9 1004.8 999.1 995.1 DAY 16 1 7 30 1 15 30 1 1 14 25 3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.5 2.5 6.4 12.7 18.0 21.8 25.3 25.4 19.3 11.6 8.4 1.2 12.9 MINIMUN AIR TEMPERATURE (C) -1.5 -2.1 -0.0 7.3 10.2 14.5 18.8 18.1 11.8 5.4 1.9 -3.1 6.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 1 2 0 0 0 0 3 DAYS WITH MINIMUM TEMP. <=-4 5 8 4 0 0 0 0 0 0 0 2 11 30 DAYS WITH FREEZING MIN.<= 0 25 21 14 0 0 0 0 0 0 6 14 29 109 TEMPERATURE RECORDS LOWEST(C) -7.0 -9.2 -6.0 0.6 6.4 8.4 13.6 14.0 4.0 -3.8 -4.6 -8.4 -9.2 DAY 25 26 6 8 10 1 25 7 28 19 30 11 MAXIMUM AIR TEMPERATURE (C) 9.1 9.6 14.2 20.0 25.8 29.4 33.2 33.7 28.1 19.7 17.7 7.6 20.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 17 26 28 14 0 0 0 87 DAYS WITH MAXIMUM TEMP. <= 0 0 1 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS HIGHEST(C) 17.2 17.8 22.6 28.4 30.6 36.2 40.0 40.0 34.4 29.4 25.6 15.2 40.0 DAY 17 2 25 3 5 29 12 12 19 3 11 31 DIF. BETWEEN (MAX.-MIN.) (C) 10.6 11.7 14.2 12.7 15.6 14.9 14.4 15.6 16.3 14.3 15.8 10.7 13.9 MEAN DAILY TEMP. (MDT) (C) 3.8 3.8 7.1 13.6 18.0 21.9 26.0 25.9 20.0 12.5 9.8 2.2 13.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 2.8 53.3 154.4 152.3 26.9 0.0 0.0 0.0 389.8 HEATING DEG. DAYS(BASE 18 0C) 440.5 398.4 338.2 133.7 27.2 6.5 0.0 0.0 22.9 171.9 247.0 489.3 2275.4 DEWPOINT (MEAN C) -3.7 -3.4 -2.7 3.6 2.3 7.7 12.4 10.4 5.7 2.9 -3.2 -4.4 2.3 MIXING RATIO (G/KG) 3.31 3.44 3.78 5.86 5.52 7.77 10.61 9.67 6.98 5.67 3.56 3.14 5.78 VAPOUR PRESSURE (HPA) 4.74 4.91 5.38 8.29 7.83 10.95 14.85 13.58 9.87 8.07 5.08 4.50 8.17 SATURATION DEF. (HPA) 2.91 2.75 4.84 7.20 13.78 16.62 18.57 20.17 13.95 6.50 7.05 2.41 9.73 RELATIVE HUMIDITY (MEAN %) 68 69 59 60 40 45 49 45 48 60 51 70 55 RELATIVE HUMIDITY (MAX. %) 86 90 83 83 63 69 74 71 72 85 75 87 78 RELATIVE HUMIDITY (MIN. %) 46 43 35 39 22 27 29 24 26 34 29 45 33 RELATIVE HUMIDITY (MEAN% 03UTC) 78 86 79 76 59 61 69 63 67 81 69 84 73 RELATIVE HUMIDITY (MEAN% 09UTC) 54 57 45 48 26 33 35 30 32 45 37 55 41 RELATIVE HUMIDITY (MEAN% 15UTC) 65 58 47 50 29 33 37 32 36 53 41 63 45 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 14.7 26.0 28.4 43.7 3.2 13.6 5.1 0.0 17.6 15.8 22.6 3.8 194.5 DAYS WITH PRECIPITATION >=10 0 0 1 2 0 1 0 0 0 0 1 0 5 DAYS WITH PRECIPITATION >= 5 1 2 2 3 0 1 0 0 1 1 1 0 12 DAYS WITH PRECIPITATION >= 1 3 6 4 4 2 1 2 0 5 4 3 3 37 DAYS WITH PRECIPITATION 10 7 8 13 4 5 4 0 8 6 5 5 75 GREATEST DAILY PRECIPITATION 7.3 9.3 16.0 20.2 1.7 12.0 3.0 0.0 8.0 9.0 16.1 1.2 20.2 DAY 18 9 18 22 8 23 6 ** 21 13 26 18 DAY WITH THUNDER STORM 0 2 1 2 3 5 6 0 5 0 2 0 26 DAYS WITH SNOW OR SLEET 8 4 2 0 0 0 0 0 0 0 2 3 19 DAYS WITH DUST 0 0 0 1 0 2 1 1 2 0 0 0 7 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 11.7 12.6 13.3 13.7 12.5 16.0 15.5 16.1 12.8 13.9 16.0 10.0 14.2 PREVAILING WIND PERCENT 13.7 27.2 23.8 30.8 27.8 40.8 59.3 41.9 26.7 31.9 13.3 10.9 29.0 CALMS PERCENT OF WIND 77.4 66.1 64.5 57.9 52.4 42.1 31.0 43.1 56.7 64.1 79.6 79.8 59.5 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 247 272 278 273 291 284 280 283 290 278 256 232 278 VECTOR WIND MAGNITUDE(KNOTS) 1.4 3.3 3.3 4.0 3.7 6.3 9.1 6.6 3.4 4.4 2.4 1.1 4.0 WIND STEADINESES (MEAN %) 50.0 80.5 75.0 75.5 68.5 76.8 89.2 81.5 70.8 89.8 77.4 50.0 75.5 WIND SPEED (MEAN KNOTS) 2.8 4.1 4.4 5.3 5.4 8.2 10.2 8.1 4.8 4.9 3.1 2.2 5.3 FASTEST WIND DIRECTION 150 270 190 280 210 270 270 280 280 270 280 280 270 FASTEST WIND SPEED (KNOTS) 45 49 43 39 41 35 29 33 29 49 49 25 49 DAY 17 5 25 12 2 23 3 13 19 13 11 10 DAYS WITH SKY CLEAR (0-2)/8 15 15 17 5 18 16 25 28 21 23 24 15 222 DAYS WITH P.CLOUDY (3-6)/8 9 6 6 10 12 12 6 3 8 7 4 10 93 DAYS WITH CLOUDY (7-8)/8 7 7 8 15 1 2 0 0 1 1 2 6 50 DAYS WITH VISIBILITY =< 2 KM 5 6 2 0 0 0 0 0 0 1 1 3 18 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** 170.5 334.9 333.8 278.6 268.6 233.9 173.2 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 894.2 892.7 891.6 889.8 892.0 888.3 886.0 888.3 890.8 895.4 893.1 895.4 891.5 MAX. QFE PRESSURE IN HPA 904.6 900.4 901.3 897.8 898.6 894.5 890.9 894.3 897.9 906.3 902.6 903.4 906.3 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 6 23- 6 25- 3 22- 6 17-18 15-18 10- 6 MIN. QFE PRESSURE IN HPA 885.6 881.6 878.3 884.5 885.1 880.9 880.6 882.3 882.1 887.6 880.0 888.3 878.3 DAY-HOUR 17- 9 5-12 26- 0 19-21 7-12 30-12 11-12 22-12 19-12 11-12 26- 0 25-12 MEAN QNH PRESSURE IN HPA 1018.9 1017.2 1015.9 1014.0 1016.5 1012.3 1009.8 1012.3 1015.1 1020.3 1017.6 1020.3 1015.9 MAX. QNH PRESSURE IN HPA 1030.5 1025.8 1026.8 1022.9 1023.8 1019.2 1015.2 1019.0 1023.0 1032.3 1028.2 1029.1 1032.3 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 6 23- 6 25- 3 22- 6 17-18 15-18 10- 6 MIN. QNH PRESSURE IN HPA 1009.3 1004.9 1001.2 1008.1 1008.8 1004.1 1003.8 1005.7 1005.4 1011.6 1003.1 1012.3 1001.2 DAY-HOUR 17- 9 5-12 26- 0 19-21 7-12 30-12 11-12 22-12 19-12 11-12 26- 0 25-12 MEAN QFF PRESSURE IN HPA 1021.5 1019.8 1016.7 1011.6 1011.8 1005.8 1001.6 1004.2 1009.7 1018.6 1017.4 1023.6 1013.5 MAX. QFF PRESSURE IN HPA 1033.9 1028.9 1030.4 1024.3 1021.0 1014.1 1008.8 1011.9 1021.2 1034.7 1030.7 1035.4 1035.4 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 6 23- 6 25- 3 22- 3 17-18 15-18 11- 6 MIN. QFF PRESSURE IN HPA 1006.9 1005.2 996.2 1002.1 1002.2 995.4 992.8 996.2 998.2 1006.5 1002.3 1013.5 992.8 DAY-HOUR 17- 9 8-18 26- 0 20- 0 7-12 30-12 16- 0 22-12 19-12 4-12 25-21 25-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 893.9 892.7 891.3 889.6 892.0 888.5 886.0 888.2 891.0 895.3 893.1 895.4 891.4 MAX. QFE PRESSURE IN HPA 903.0 897.8 899.7 896.1 896.1 893.6 890.0 893.4 897.2 904.8 902.1 902.7 904.8 DAY 7 12 3 7 26 1 4 25 22 18 16 11 MIN. QFE PRESSURE IN HPA 886.3 885.5 878.3 884.5 887.5 881.1 880.8 883.1 886.2 888.5 880.0 889.8 878.3 DAY 12 9 26 20 7 30 16 23 20 4 26 22 MEAN QNH PRESSURE IN HPA 1018.6 1017.2 1015.7 1013.7 1016.5 1012.5 1009.8 1012.2 1015.3 1020.2 1017.6 1020.3 1015.8 MAX. QNH PRESSURE IN HPA 1028.7 1022.9 1025.0 1021.0 1021.0 1018.2 1014.2 1018.0 1022.2 1030.7 1027.7 1028.3 1030.7 DAY 7 12 3 7 26 1 4 25 22 18 16 11 MIN. QNH PRESSURE IN HPA 1010.1 1009.2 1001.2 1008.1 1011.4 1004.3 1004.0 1006.6 1010.0 1012.6 1003.1 1014.0 1001.2 DAY 12 9 26 20 7 30 16 23 20 4 26 22 MEAN QFF PRESSURE IN HPA 1020.6 1019.2 1016.1 1011.1 1011.7 1006.1 1001.3 1003.9 1009.5 1018.1 1016.7 1023.1 1013.1 MAX. QFF PRESSURE IN HPA 1031.5 1027.3 1028.3 1022.6 1017.9 1013.9 1007.0 1010.5 1020.1 1033.7 1029.6 1034.8 1034.8 DAY 7 18 3 7 26 1 25 25 22 18 28 11 MIN. QFF PRESSURE IN HPA 1009.3 1008.3 996.2 1002.1 1005.4 995.5 992.8 996.9 1002.9 1006.7 1002.6 1014.6 992.8 DAY 17 9 26 20 7 30 16 23 19 4 26 22 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 894.2 892.9 891.9 890.2 892.6 889.2 886.9 889.2 891.6 895.8 893.5 895.8 892.0 MAX. QFE PRESSURE IN HPA 903.5 898.7 900.1 897.4 897.9 893.9 890.6 894.3 897.6 904.8 901.9 902.6 904.8 DAY 7 12 3 7 26 1 4 25 22 18 16 11 MIN. QFE PRESSURE IN HPA 886.4 885.5 879.6 885.2 887.8 881.7 880.9 885.3 886.3 888.9 880.5 889.8 879.6 DAY 17 9 26 18 7 30 16 3 19 4 26 22 MEAN QNH PRESSURE IN HPA 1018.8 1017.5 1016.3 1014.4 1017.1 1013.3 1010.8 1013.3 1016.0 1020.7 1018.2 1020.7 1016.4 MAX. QNH PRESSURE IN HPA 1029.2 1023.9 1025.5 1022.5 1023.0 1018.6 1014.9 1019.0 1022.7 1030.7 1027.5 1028.2 1030.7 DAY 7 12 3 7 26 1 4 25 22 18 16 11 MIN. QNH PRESSURE IN HPA 1010.2 1009.2 1002.7 1008.9 1011.8 1005.0 1004.1 1009.0 1010.1 1013.0 1003.7 1014.0 1002.7 DAY 17 9 26 18 7 30 16 3 19 4 26 22 MEAN QFF PRESSURE IN HPA 1022.1 1020.6 1017.8 1012.4 1012.8 1006.9 1002.6 1005.4 1011.1 1019.7 1018.8 1024.8 1014.6 MAX. QFF PRESSURE IN HPA 1032.5 1027.7 1029.2 1024.2 1020.1 1014.0 1008.0 1011.9 1021.2 1034.0 1030.2 1035.2 1035.2 DAY 7 18 3 7 26 1 24 25 22 18 28 11 MIN. QFF PRESSURE IN HPA 1009.2 1009.1 998.9 1003.8 1005.7 995.7 993.5 1000.0 1003.9 1008.9 1003.7 1017.2 993.5 DAY 17 9 26 20 7 30 16 3 19 4 26 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 895.2 893.7 892.7 890.7 892.9 889.2 887.1 889.6 892.0 896.5 894.4 896.7 892.6 MAX. QFE PRESSURE IN HPA 904.6 900.4 901.3 897.8 898.6 894.5 890.9 894.3 897.9 905.8 902.3 903.4 905.8 DAY 7 12 3 7 26 1 23 25 22 25 15 10 MIN. QFE PRESSURE IN HPA 886.4 885.4 881.9 885.8 888.2 882.0 880.9 885.5 886.3 889.7 883.0 891.2 880.9 DAY 17 5 26 18 7 30 16 3 19 11 26 22 MEAN QNH PRESSURE IN HPA 1020.0 1018.4 1017.2 1015.0 1017.4 1013.3 1011.1 1013.8 1016.5 1021.4 1019.1 1021.7 1017.1 MAX. QNH PRESSURE IN HPA 1030.5 1025.8 1026.8 1022.9 1023.8 1019.2 1015.2 1019.0 1023.0 1031.8 1027.9 1029.1 1031.8 DAY 7 12 3 7 26 1 23 25 22 25 15 10 MIN. QNH PRESSURE IN HPA 1010.2 1009.1 1005.2 1009.6 1012.2 1005.3 1004.1 1009.2 1010.1 1013.9 1006.4 1015.6 1004.1 DAY 17 5 26 18 7 30 16 3 19 11 26 22 MEAN QFF PRESSURE IN HPA 1023.2 1021.2 1018.2 1012.7 1012.7 1006.9 1003.0 1005.7 1011.1 1019.9 1019.1 1025.4 1014.9 MAX. QFF PRESSURE IN HPA 1033.9 1028.9 1030.4 1024.3 1021.0 1014.1 1008.8 1011.3 1020.7 1034.2 1030.3 1035.4 1035.4 DAY 7 12 3 7 26 1 23 24 22 18 16 11 MIN. QFF PRESSURE IN HPA 1008.2 1009.3 1002.8 1004.5 1006.4 995.8 993.3 999.7 1003.2 1008.8 1007.7 1017.2 993.3 DAY 17 9 26 20 7 30 16 3 19 4 26 22 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 894.3 893.0 891.6 890.0 891.9 888.3 886.1 888.6 890.8 895.4 893.0 895.5 891.5 MAX. QFE PRESSURE IN HPA 903.9 900.4 900.8 896.8 898.1 893.4 890.3 893.1 896.9 905.0 902.2 903.3 905.0 DAY 7 12 3 7 26 1 23 24 13 25 15 10 MIN. QFE PRESSURE IN HPA 885.6 882.9 881.3 885.7 886.0 882.0 880.6 884.6 884.0 888.5 884.7 889.7 880.6 DAY 17 5 26 19 7 30 16 22 19 11 26 22 MEAN QNH PRESSURE IN HPA 1018.9 1017.5 1016.0 1014.2 1016.4 1012.3 1009.9 1012.6 1015.1 1020.2 1017.6 1020.3 1015.9 MAX. QNH PRESSURE IN HPA 1029.7 1025.8 1026.2 1021.8 1023.2 1018.0 1014.6 1017.7 1021.9 1030.9 1027.8 1029.0 1030.9 DAY 7 12 3 7 26 1 23 24 13 25 15 10 MIN. QNH PRESSURE IN HPA 1009.3 1006.3 1004.5 1009.4 1009.8 1005.3 1003.8 1008.2 1007.6 1012.6 1008.3 1013.9 1003.8 DAY 17 5 26 19 7 30 16 22 19 11 26 22 MEAN QFF PRESSURE IN HPA 1021.3 1019.8 1016.3 1011.5 1011.4 1005.6 1001.5 1004.3 1009.4 1018.1 1016.8 1023.3 1013.3 MAX. QFF PRESSURE IN HPA 1032.9 1028.5 1029.2 1022.7 1020.9 1013.3 1008.1 1010.5 1019.1 1031.8 1028.9 1034.1 1034.1 DAY 7 12 3 7 26 1 23 24 27 18 15 10 MIN. QFF PRESSURE IN HPA 1006.9 1006.1 1001.4 1005.4 1002.9 995.9 993.2 998.8 1000.3 1007.3 1004.1 1015.1 993.2 DAY 17 5 26 19 7 30 16 3 19 4 11 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 893.3 891.7 890.6 889.1 890.9 887.4 884.9 887.1 889.5 894.3 892.0 894.4 890.4 MAX. QFE PRESSURE IN HPA 903.5 899.2 900.0 894.9 897.2 892.4 889.0 892.1 896.1 904.9 901.4 902.8 904.9 DAY 7 12 3 7 26 1 23 24 27 17 15 10 MIN. QFE PRESSURE IN HPA 886.3 881.6 881.1 885.0 885.1 880.9 880.6 882.3 882.1 887.6 884.2 888.3 880.6 DAY 11 5 26 19 7 30 11 22 19 11 11 25 MEAN QNH PRESSURE IN HPA 1017.9 1016.1 1014.9 1013.2 1015.3 1011.3 1008.5 1011.0 1013.7 1019.1 1016.5 1019.1 1014.7 MAX. QNH PRESSURE IN HPA 1029.2 1024.5 1025.3 1019.7 1022.2 1016.9 1013.1 1016.6 1021.0 1030.8 1026.9 1028.5 1030.8 DAY 7 12 3 7 26 1 23 24 27 17 15 10 MIN. QNH PRESSURE IN HPA 1010.1 1004.9 1004.3 1008.7 1008.8 1004.1 1003.8 1005.7 1005.4 1011.6 1007.8 1012.3 1003.8 DAY 11 5 26 19 7 30 11 22 19 11 11 25 MEAN QFF PRESSURE IN HPA 1019.9 1018.2 1015.2 1010.6 1010.5 1004.8 1000.2 1002.7 1008.0 1017.1 1015.6 1021.9 1012.1 MAX. QFF PRESSURE IN HPA 1032.6 1026.8 1028.0 1020.2 1019.8 1012.2 1006.5 1008.7 1018.7 1031.0 1028.2 1033.4 1033.4 DAY 7 12 3 7 26 23 23 24 27 17 15 10 MIN. QFF PRESSURE IN HPA 1010.8 1006.2 1002.7 1005.0 1002.2 995.4 993.4 996.2 998.2 1006.5 1002.7 1013.5 993.4 DAY 11 8 26 19 7 30 16 22 19 4 11 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 893.9 892.1 891.0 889.2 891.2 887.3 884.9 887.1 889.9 894.9 892.5 894.9 890.7 MAX. QFE PRESSURE IN HPA 903.6 899.2 899.7 894.3 896.5 892.2 888.6 892.5 896.2 905.6 902.3 902.7 905.6 DAY 7 12 3 7 26 1 23 24 27 17 15 10 MIN. QFE PRESSURE IN HPA 887.5 883.0 880.9 885.0 886.2 880.9 880.7 882.3 884.6 888.8 883.7 888.8 880.7 DAY 1 8 25 19 7 30 16 22 19 4 25 25 MEAN QNH PRESSURE IN HPA 1018.6 1016.5 1015.3 1013.3 1015.6 1011.2 1008.5 1011.0 1014.1 1019.7 1017.0 1019.7 1015.0 MAX. QNH PRESSURE IN HPA 1029.3 1024.5 1025.0 1019.0 1021.5 1016.7 1012.7 1017.0 1021.1 1031.6 1027.9 1028.3 1031.6 DAY 7 12 3 7 26 1 23 24 27 17 15 10 MIN. QNH PRESSURE IN HPA 1011.4 1006.4 1004.1 1008.7 1010.0 1004.1 1003.9 1005.7 1008.2 1012.9 1007.2 1012.9 1003.9 DAY 1 8 25 19 7 30 16 22 19 4 25 25 MEAN QFF PRESSURE IN HPA 1021.7 1019.7 1016.7 1011.2 1011.3 1004.8 1000.5 1003.1 1009.3 1018.6 1017.7 1023.7 1013.2 MAX. QFF PRESSURE IN HPA 1032.9 1027.1 1028.2 1019.8 1018.7 1012.0 1006.2 1009.6 1019.3 1032.9 1030.5 1033.8 1033.8 DAY 7 12 3 7 26 23 23 24 27 17 15 10 MIN. QFF PRESSURE IN HPA 1012.3 1006.2 1002.2 1005.4 1003.9 995.6 993.8 996.9 1002.4 1008.4 1003.6 1016.4 993.8 DAY 11 8 25 19 7 30 16 22 19 3 11 25 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 894.5 892.8 891.9 890.2 892.5 888.3 886.3 888.5 890.8 895.8 893.1 895.5 891.7 MAX. QFE PRESSURE IN HPA 903.5 899.2 900.6 895.9 897.1 892.6 889.7 894.0 896.4 906.3 902.6 903.4 906.3 DAY 6 12 2 6 26 2 4 24 27 17 15 10 MIN. QFE PRESSURE IN HPA 887.9 883.0 880.9 885.0 887.5 882.0 881.7 883.1 886.5 889.4 882.4 889.9 880.9 DAY 1 8 25 19 6 29 16 22 19 3 25 25 MEAN QNH PRESSURE IN HPA 1019.3 1017.3 1016.3 1014.4 1017.0 1012.3 1010.1 1012.5 1015.1 1020.6 1017.6 1020.3 1016.1 MAX. QNH PRESSURE IN HPA 1029.2 1024.5 1026.0 1020.8 1022.1 1017.1 1013.9 1018.7 1021.3 1032.3 1028.2 1029.1 1032.3 DAY 6 12 2 6 26 2 4 24 27 17 15 10 MIN. QNH PRESSURE IN HPA 1011.9 1006.4 1004.1 1008.7 1011.4 1005.3 1005.0 1006.6 1010.3 1013.6 1005.8 1014.1 1004.1 DAY 1 8 25 19 6 29 16 22 19 3 25 25 MEAN QFF PRESSURE IN HPA 1022.4 1020.2 1017.2 1012.1 1012.3 1005.8 1002.0 1004.4 1009.8 1019.1 1017.8 1024.0 1013.9 MAX. QFF PRESSURE IN HPA 1032.6 1028.0 1029.3 1021.7 1019.7 1012.8 1007.5 1011.4 1019.5 1034.7 1030.7 1035.3 1035.3 DAY 7 17 5 6 26 23 24 24 27 17 15 10 MIN. QFF PRESSURE IN HPA 1012.7 1005.2 1002.0 1003.9 1005.2 996.0 995.0 997.5 1003.6 1008.9 1003.2 1016.7 995.0 DAY 16 8 25 19 6 30 16 22 19 3 11 25 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 894.2 892.7 891.6 889.7 892.4 888.2 886.3 888.4 890.8 895.6 893.0 895.3 891.5 MAX. QFE PRESSURE IN HPA 903.5 898.3 900.4 895.7 896.5 892.7 889.6 893.6 896.2 905.7 902.4 903.0 905.7 DAY 6 17 2 6 26 1 3 24 21 17 15 10 MIN. QFE PRESSURE IN HPA 887.5 885.0 879.3 884.5 887.5 881.7 881.6 882.9 886.5 889.1 880.1 890.2 879.3 DAY 11 8 25 19 6 29 15 22 19 3 25 25 MEAN QNH PRESSURE IN HPA 1018.9 1017.2 1016.0 1013.9 1016.8 1012.2 1010.1 1012.4 1015.1 1020.5 1017.6 1020.1 1015.9 MAX. QNH PRESSURE IN HPA 1029.2 1023.5 1025.8 1020.6 1021.5 1017.2 1013.8 1018.2 1021.1 1031.7 1028.0 1028.7 1031.7 DAY 6 17 2 6 26 1 3 24 21 17 15 10 MIN. QNH PRESSURE IN HPA 1011.4 1008.7 1002.3 1008.1 1011.4 1005.0 1004.9 1006.3 1010.3 1013.2 1003.2 1014.4 1002.3 DAY 11 8 25 19 6 29 15 22 19 3 25 25 MEAN QFF PRESSURE IN HPA 1021.2 1019.5 1016.2 1011.2 1011.9 1005.3 1001.7 1004.0 1009.4 1018.3 1016.9 1023.1 1013.2 MAX. QFF PRESSURE IN HPA 1032.2 1027.9 1028.9 1021.7 1019.2 1012.6 1007.5 1010.7 1018.7 1034.5 1029.5 1035.0 1035.0 DAY 6 17 2 6 26 23 24 24 21 17 15 10 MIN. QFF PRESSURE IN HPA 1010.3 1007.4 997.0 1002.3 1004.6 996.0 994.5 997.2 1002.8 1008.3 1002.3 1016.0 994.5 DAY 16 8 25 19 6 29 15 22 19 3 25 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.0 1.2 4.5 10.6 18.0 21.7 25.1 24.1 21.4 12.6 5.4 4.4 12.4 MINIMUN AIR TEMPERATURE (C) -4.5 -3.0 0.9 5.9 11.3 14.8 18.0 16.2 14.4 6.0 -0.3 -1.2 6.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 1 2 0 0 0 0 3 DAYS WITH MINIMUM TEMP. <=-4 15 10 1 0 0 0 0 0 0 0 5 10 41 DAYS WITH FREEZING MIN.<= 0 25 21 10 3 0 0 0 0 0 1 17 17 94 TEMPERATURE RECORDS LOWEST(C) -12.6 -18.6 -4.2 -2.8 5.8 10.0 14.4 8.4 7.5 0.0 -5.0 -10.8 -18.6 DAY 16 4 1 6 2 17 15 31 25 20 14 7 MAXIMUM AIR TEMPERATURE (C) 6.5 7.8 10.0 16.9 25.3 29.2 32.7 32.4 29.9 21.1 12.6 12.2 19.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 7 13 26 23 17 0 0 0 86 DAYS WITH MAXIMUM TEMP. <= 0 3 2 1 0 0 0 0 0 0 0 0 0 6 TEMPERATURE RECORDS HIGHEST(C) 15.8 15.0 22.0 25.0 32.8 37.6 35.6 38.2 38.0 27.6 19.0 19.0 38.2 DAY 6 18 31 13 17 1 24 12 8 25 7 29 DIF. BETWEEN (MAX.-MIN.) (C) 11.0 10.8 9.1 11.0 14.0 14.4 14.7 16.2 15.5 15.1 12.9 13.4 13.2 MEAN DAILY TEMP. (MDT) (C) 1.0 2.4 5.4 11.4 18.3 22.0 25.3 24.3 22.1 13.5 6.2 5.5 13.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 11.9 44.7 134.9 106.4 54.0 0.0 0.0 0.0 352.0 HEATING DEG. DAYS(BASE 18 0C) 527.1 451.7 389.6 199.0 34.4 0.0 0.0 0.0 2.6 139.9 355.3 388.5 2488.1 DEWPOINT (MEAN C) -6.8 -4.2 0.1 2.7 5.9 8.7 9.3 5.1 7.5 1.5 -1.7 -6.5 1.8 MIXING RATIO (G/KG) 2.75 3.31 4.43 5.62 6.88 8.42 8.74 7.11 7.79 5.11 3.97 2.87 5.58 VAPOUR PRESSURE (HPA) 3.93 4.71 6.30 7.97 9.75 11.87 12.31 10.03 10.98 7.28 5.69 4.10 7.91 SATURATION DEF. (HPA) 2.71 2.42 2.54 5.50 11.93 15.18 20.78 21.41 15.93 8.21 3.80 4.96 9.61 RELATIVE HUMIDITY (MEAN %) 64 71 76 64 51 49 42 36 46 53 64 50 56 RELATIVE HUMIDITY (MAX. %) 84 88 92 85 74 73 66 58 71 75 85 72 77 RELATIVE HUMIDITY (MIN. %) 42 49 56 43 30 30 21 18 26 32 39 27 34 RELATIVE HUMIDITY (MEAN% 03UTC) 80 83 87 76 69 65 62 52 64 71 83 66 72 RELATIVE HUMIDITY (MEAN% 09UTC) 51 61 67 54 36 36 26 24 32 38 45 38 42 RELATIVE HUMIDITY (MEAN% 15UTC) 55 64 69 56 39 38 28 25 36 46 58 41 46 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 13.7 33.1 44.3 42.7 26.3 0.0 2.2 0.1 3.1 11.0 10.8 5.6 192.9 DAYS WITH PRECIPITATION >=10 1 0 1 1 0 0 0 0 0 0 0 0 3 DAYS WITH PRECIPITATION >= 5 1 3 4 2 3 0 0 0 0 1 1 0 15 DAYS WITH PRECIPITATION >= 1 2 6 10 4 5 0 1 0 1 4 2 3 38 DAYS WITH PRECIPITATION 8 10 18 14 9 2 4 2 4 6 4 5 86 GREATEST DAILY PRECIPITATION 11.4 9.0 13.0 26.0 8.1 0.0 1.0 0.1 2.0 6.0 6.6 2.2 26.0 DAY 21 3 13 15 21 ** 9 14 21 31 12 23 DAY WITH THUNDER STORM 0 0 0 2 6 0 2 0 2 0 0 0 12 DAYS WITH SNOW OR SLEET 7 8 8 0 0 0 0 0 0 0 3 0 26 DAYS WITH DUST 0 0 0 2 0 2 2 0 0 0 0 0 6 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 135 270 PREVAILING WIND SPEED(KNOTS) 9.7 12.0 12.8 14.8 11.6 15.4 14.3 13.2 12.3 13.0 13.5 16.2 13.3 PREVAILING WIND PERCENT 13.7 25.4 26.6 31.3 23.4 51.7 41.1 29.4 35.0 30.6 18.3 7.3 27.7 CALMS PERCENT OF WIND 74.6 65.5 54.8 57.5 61.7 40.4 36.7 52.0 57.9 64.5 75.8 76.6 59.8 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 266 271 277 274 285 277 295 294 278 275 271 183 277 VECTOR WIND MAGNITUDE(KNOTS) 1.2 2.7 2.9 4.6 2.1 8.0 6.2 3.9 4.5 3.9 2.6 2.1 3.5 WIND STEADINESES (MEAN %) 48.0 65.9 52.7 76.7 50.0 90.9 72.9 68.4 91.8 86.7 78.8 60.0 68.6 WIND SPEED (MEAN KNOTS) 2.5 4.1 5.5 6.0 4.2 8.8 8.5 5.7 4.9 4.5 3.3 3.5 5.1 FASTEST WIND DIRECTION 180 180 270 180 290 90 270 270 280 270 240 180 270 FASTEST WIND SPEED (KNOTS) 27 43 43 29 31 39 29 29 29 54 35 35 54 DAY 6 1 26 13 25 29 25 13 9 14 8 24 DAYS WITH SKY CLEAR (0-2)/8 9 9 3 7 10 20 25 24 26 16 20 17 186 DAYS WITH P.CLOUDY (3-6)/8 17 10 10 9 10 8 6 6 2 11 8 10 107 DAYS WITH CLOUDY (7-8)/8 5 10 18 14 11 2 0 1 2 4 2 4 73 DAYS WITH VISIBILITY =< 2 KM 2 6 8 1 0 0 0 0 0 0 2 1 20 DURATION OF SUNSHINE HOURS 181.6 139.7 122.4 174.8 247.0 310.2 356.3 300.5 283.8 231.8 212.6 188.6 2749.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 895.0 891.9 890.2 891.6 891.5 889.5 889.6 889.8 889.3 894.2 898.2 894.8 892.1 MAX. QFE PRESSURE IN HPA 906.4 899.4 895.1 900.8 897.1 895.5 897.1 899.4 898.4 905.0 908.5 903.7 908.5 DAY-HOUR 10- 6 13- 6 16- 6 4-18 7- 6 11-18 3- 6 29- 6 30-21 2- 6 18- 6 8- 6 MIN. QFE PRESSURE IN HPA 883.3 879.3 881.8 882.0 885.4 883.4 884.1 882.4 881.9 882.4 891.4 885.7 879.3 DAY-HOUR 6-21 5-12 26- 3 13-12 29-12 1-15 7-12 8-12 9- 0 27- 9 28-12 24-21 MEAN QNH PRESSURE IN HPA 1019.8 1016.4 1014.5 1016.0 1015.9 1013.7 1013.8 1014.0 1013.4 1018.9 1023.3 1019.6 1016.6 MAX. QNH PRESSURE IN HPA 1032.5 1024.7 1019.9 1026.2 1022.1 1020.3 1022.1 1024.7 1023.6 1030.9 1034.8 1029.5 1034.8 DAY-HOUR 10- 6 13- 6 16- 6 4-18 7- 6 11-18 3- 6 29- 6 30-21 2- 6 18- 6 8- 6 MIN. QNH PRESSURE IN HPA 1006.8 1002.3 1005.1 1005.3 1009.1 1006.9 1007.7 1005.8 1005.2 1005.8 1015.8 1009.4 1002.3 DAY-HOUR 6-21 5-12 26- 3 13-12 29-12 1-15 7-12 8-12 9- 0 27- 9 28-12 24-21 MEAN QFF PRESSURE IN HPA 1023.7 1019.5 1016.0 1014.6 1011.1 1007.1 1005.8 1006.6 1007.0 1016.6 1024.6 1021.4 1014.5 MAX. QFF PRESSURE IN HPA 1039.0 1032.3 1023.8 1029.4 1018.8 1015.9 1015.0 1019.2 1018.8 1028.4 1038.6 1036.2 1039.0 DAY-HOUR 10- 6 4- 6 17- 6 5- 3 7- 6 12- 3 3- 6 30- 6 25- 3 2- 3 18-18 7- 6 MIN. QFF PRESSURE IN HPA 1004.3 1003.9 1002.5 1000.0 1002.6 998.5 999.0 998.0 995.6 1000.7 1014.9 1007.5 995.6 DAY-HOUR 6-21 10- 0 26- 0 13-12 29-15 1-15 7-12 8-12 9- 0 27- 9 6-12 30- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 894.9 891.6 889.9 891.2 891.4 889.6 889.8 889.8 889.3 894.2 898.1 894.8 892.1 MAX. QFE PRESSURE IN HPA 904.9 897.7 894.0 899.8 895.8 894.7 895.6 897.7 896.0 903.5 906.7 902.8 906.7 DAY 10 13 16 5 7 12 4 30 25 2 19 8 MIN. QFE PRESSURE IN HPA 884.0 882.1 882.5 883.5 887.3 885.2 885.7 884.8 881.9 885.0 891.9 885.8 881.9 DAY 7 10 26 13 30 19 7 8 9 27 29 25 MEAN QNH PRESSURE IN HPA 1019.7 1016.0 1014.2 1015.6 1015.8 1013.8 1014.0 1014.0 1013.5 1018.9 1023.2 1019.6 1016.5 MAX. QNH PRESSURE IN HPA 1030.8 1022.8 1018.7 1025.1 1020.7 1019.4 1020.5 1022.8 1020.9 1029.2 1032.8 1028.5 1032.8 DAY 10 13 16 5 7 12 4 30 25 2 19 8 MIN. QNH PRESSURE IN HPA 1007.6 1005.4 1005.9 1007.0 1011.2 1008.9 1009.4 1008.4 1005.2 1008.7 1016.3 1009.6 1005.2 DAY 7 10 26 13 30 19 7 8 9 27 29 25 MEAN QFF PRESSURE IN HPA 1023.1 1018.7 1015.5 1014.0 1011.0 1007.1 1005.8 1006.2 1006.7 1016.0 1023.9 1020.8 1014.1 MAX. QFF PRESSURE IN HPA 1036.4 1031.1 1022.2 1027.7 1018.3 1014.6 1012.4 1017.4 1017.3 1026.9 1036.3 1033.4 1036.4 DAY 10 4 17 5 2 12 4 30 25 19 19 8 MIN. QFF PRESSURE IN HPA 1005.4 1003.9 1002.5 1002.2 1003.7 1000.2 1000.7 1000.1 995.6 1003.6 1015.9 1007.5 995.6 DAY 7 10 26 19 30 2 7 9 9 27 2 30 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 895.2 891.9 890.3 891.7 892.1 890.4 890.6 890.6 890.1 894.6 898.5 895.1 892.6 MAX. QFE PRESSURE IN HPA 905.0 898.4 894.4 900.3 896.6 895.5 896.3 898.3 896.7 904.9 907.2 903.3 907.2 DAY 10 13 16 5 7 12 3 30 25 2 18 8 MIN. QFE PRESSURE IN HPA 885.9 883.2 881.8 882.1 887.3 886.0 886.6 885.2 883.3 884.3 892.3 886.2 881.8 DAY 7 6 26 13 30 19 7 8 22 27 29 25 MEAN QNH PRESSURE IN HPA 1020.0 1016.3 1014.6 1016.1 1016.5 1014.7 1014.8 1014.9 1014.4 1019.4 1023.7 1019.9 1017.1 MAX. QNH PRESSURE IN HPA 1030.9 1023.6 1019.1 1025.7 1021.6 1020.3 1021.2 1023.5 1021.7 1030.8 1033.3 1029.0 1033.3 DAY 10 13 16 5 7 12 3 30 25 2 18 8 MIN. QNH PRESSURE IN HPA 1009.7 1006.7 1005.1 1005.4 1011.2 1009.8 1010.4 1008.9 1006.8 1007.9 1016.8 1010.0 1005.1 DAY 7 6 26 13 30 19 7 8 22 27 29 25 MEAN QFF PRESSURE IN HPA 1024.6 1019.6 1016.6 1014.9 1012.0 1008.3 1007.1 1007.8 1008.4 1017.9 1025.8 1022.6 1015.4 MAX. QFF PRESSURE IN HPA 1037.8 1031.7 1022.9 1029.4 1018.7 1015.9 1014.2 1019.0 1018.8 1028.4 1038.0 1035.9 1038.0 DAY 10 4 16 5 7 12 3 30 25 2 18 8 MIN. QFF PRESSURE IN HPA 1008.3 1006.3 1002.8 1000.2 1003.8 1001.8 1002.2 1001.5 998.2 1004.7 1018.3 1009.8 998.2 DAY 7 10 26 13 30 2 7 8 9 27 7 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 896.1 892.8 891.0 892.4 892.4 890.5 890.6 891.1 890.5 895.3 899.4 896.1 893.2 MAX. QFE PRESSURE IN HPA 906.4 899.4 895.1 900.6 897.1 895.0 897.1 899.4 897.3 905.0 908.5 903.7 908.5 DAY 10 13 16 4 7 12 3 29 25 2 18 8 MIN. QFE PRESSURE IN HPA 888.5 883.8 881.8 883.4 888.3 886.1 886.8 885.2 883.9 883.5 893.1 887.3 881.8 DAY 7 5 26 10 30 5 7 8 22 27 29 25 MEAN QNH PRESSURE IN HPA 1021.1 1017.4 1015.3 1016.9 1016.9 1014.7 1014.9 1015.4 1014.8 1020.1 1024.6 1021.0 1017.8 MAX. QNH PRESSURE IN HPA 1032.5 1024.7 1019.9 1026.0 1022.1 1019.8 1022.1 1024.7 1022.3 1030.9 1034.8 1029.5 1034.8 DAY 10 13 16 4 7 12 3 29 25 2 18 8 MIN. QNH PRESSURE IN HPA 1012.6 1007.3 1005.1 1006.9 1012.3 1009.9 1010.7 1008.9 1007.4 1007.0 1017.7 1011.2 1005.1 DAY 7 5 26 10 30 5 7 8 22 27 29 25 MEAN QFF PRESSURE IN HPA 1025.4 1020.8 1017.1 1015.6 1012.3 1008.3 1006.9 1008.1 1008.6 1018.0 1026.2 1023.2 1015.9 MAX. QFF PRESSURE IN HPA 1039.0 1032.3 1023.8 1028.8 1018.8 1014.7 1015.0 1019.2 1018.7 1028.4 1038.5 1036.2 1039.0 DAY 10 4 17 5 7 12 3 30 25 2 18 7 MIN. QFF PRESSURE IN HPA 1011.3 1009.0 1003.8 1002.3 1004.8 1001.1 1002.1 1001.1 999.9 1001.9 1019.1 1010.5 999.9 DAY 7 10 26 13 30 5 7 8 9 27 2 25 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 895.2 892.2 890.3 891.7 891.6 889.5 889.5 889.9 889.3 894.0 898.2 894.8 892.2 MAX. QFE PRESSURE IN HPA 905.1 898.8 894.6 900.0 896.0 894.5 896.5 898.5 895.5 903.6 907.6 902.4 907.6 DAY 10 13 16 4 7 11 3 29 25 2 18 7 MIN. QFE PRESSURE IN HPA 888.5 880.9 881.8 882.5 887.2 884.9 885.4 883.8 883.8 882.4 892.5 886.0 880.9 DAY 6 5 26 13 29 5 7 8 8 27 29 25 MEAN QNH PRESSURE IN HPA 1020.0 1016.6 1014.5 1016.2 1016.0 1013.6 1013.7 1014.1 1013.5 1018.7 1023.3 1019.6 1016.7 MAX. QNH PRESSURE IN HPA 1031.0 1024.0 1019.3 1025.3 1020.9 1019.2 1021.5 1023.7 1020.3 1029.3 1033.8 1028.0 1033.8 DAY 10 13 16 4 7 11 3 29 25 2 18 7 MIN. QNH PRESSURE IN HPA 1012.6 1004.1 1005.1 1005.9 1011.1 1008.6 1009.1 1007.3 1007.3 1005.8 1017.0 1009.8 1004.1 DAY 6 5 26 13 29 5 7 8 8 27 29 25 MEAN QFF PRESSURE IN HPA 1023.5 1019.5 1015.9 1014.6 1011.1 1007.0 1005.6 1006.4 1006.7 1015.9 1024.2 1020.8 1014.3 MAX. QFF PRESSURE IN HPA 1037.1 1029.5 1023.6 1027.1 1017.0 1014.1 1013.8 1017.4 1016.1 1026.6 1036.6 1033.5 1037.1 DAY 10 4 20 5 7 11 3 29 25 2 18 7 MIN. QFF PRESSURE IN HPA 1010.5 1007.8 1004.9 1000.7 1004.7 1000.3 1000.1 999.3 998.8 1000.7 1017.3 1008.5 998.8 DAY 6 10 26 13 30 5 7 8 8 27 6 25 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 894.1 891.1 889.3 890.9 890.7 888.3 888.4 888.7 888.1 893.1 897.3 893.8 891.1 MAX. QFE PRESSURE IN HPA 903.4 897.2 894.0 898.7 895.5 893.6 895.5 897.1 894.1 902.2 907.2 901.1 907.2 DAY 10 13 28 4 26 11 3 29 24 2 18 7 MIN. QFE PRESSURE IN HPA 886.8 879.3 883.5 882.0 885.4 883.8 884.1 882.4 882.5 882.7 891.4 886.5 879.3 DAY 6 5 2 13 29 5 7 8 8 27 28 25 MEAN QNH PRESSURE IN HPA 1018.8 1015.4 1013.5 1015.2 1015.0 1012.3 1012.5 1012.7 1012.1 1017.7 1022.3 1018.5 1015.5 MAX. QNH PRESSURE IN HPA 1029.1 1022.2 1018.7 1023.9 1020.3 1018.2 1020.3 1022.1 1018.8 1027.8 1033.3 1026.6 1033.3 DAY 10 13 28 4 26 11 3 29 24 2 18 7 MIN. QNH PRESSURE IN HPA 1010.7 1002.3 1007.0 1005.3 1009.1 1007.3 1007.7 1005.8 1005.9 1006.1 1015.8 1010.3 1002.3 DAY 6 5 2 13 29 5 7 8 8 27 28 25 MEAN QFF PRESSURE IN HPA 1022.2 1018.1 1014.6 1013.6 1010.2 1005.8 1004.5 1005.0 1005.4 1014.9 1023.0 1019.6 1013.1 MAX. QFF PRESSURE IN HPA 1034.3 1027.7 1022.1 1025.7 1016.8 1013.1 1012.5 1015.4 1014.4 1025.3 1036.3 1031.5 1036.3 DAY 10 4 20 4 26 11 3 29 24 18 18 7 MIN. QFF PRESSURE IN HPA 1009.7 1007.4 1006.6 1000.0 1002.7 998.9 999.0 998.0 997.6 1002.1 1014.9 1009.3 997.6 DAY 6 10 2 13 29 1 7 8 8 27 6 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 894.5 891.7 890.0 891.2 890.7 888.3 888.6 888.8 888.3 893.7 897.8 894.5 891.5 MAX. QFE PRESSURE IN HPA 903.9 898.1 894.4 899.8 896.1 893.9 894.9 897.1 895.0 901.7 907.6 901.8 907.6 DAY 9 13 28 4 26 11 3 29 30 2 18 7 MIN. QFE PRESSURE IN HPA 885.9 880.7 884.3 882.6 885.4 883.4 884.4 882.6 882.5 885.0 891.8 886.5 880.7 DAY 6 5 25 18 29 1 6 8 8 27 28 24 MEAN QNH PRESSURE IN HPA 1019.3 1016.1 1014.2 1015.6 1015.0 1012.3 1012.6 1012.8 1012.4 1018.3 1022.9 1019.2 1015.9 MAX. QNH PRESSURE IN HPA 1029.7 1023.2 1019.1 1025.1 1021.0 1018.6 1019.7 1022.1 1019.8 1027.2 1033.8 1027.3 1033.8 DAY 9 13 28 4 26 11 3 29 30 2 18 7 MIN. QNH PRESSURE IN HPA 1009.7 1003.9 1007.9 1006.0 1009.1 1006.9 1008.0 1006.0 1005.9 1008.7 1016.2 1010.3 1003.9 DAY 6 5 25 18 29 1 6 8 8 27 28 24 MEAN QFF PRESSURE IN HPA 1023.9 1019.5 1016.0 1014.4 1010.4 1006.0 1005.0 1005.8 1006.5 1016.9 1025.0 1021.8 1014.3 MAX. QFF PRESSURE IN HPA 1036.8 1029.2 1022.9 1028.0 1018.2 1013.9 1012.2 1016.8 1016.1 1027.1 1038.4 1034.7 1038.4 DAY 10 3 16 4 26 11 3 29 24 18 18 7 MIN. QFF PRESSURE IN HPA 1009.0 1008.6 1006.6 1001.8 1002.6 998.5 999.9 998.3 998.5 1005.5 1016.8 1010.5 998.3 DAY 6 1 25 13 29 1 7 8 8 27 6 25 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 895.1 892.4 890.6 892.2 891.6 889.8 889.8 889.9 889.3 894.5 898.2 894.9 892.4 MAX. QFE PRESSURE IN HPA 904.9 897.7 894.8 900.8 896.5 895.5 896.5 898.2 897.2 904.0 907.7 902.3 907.7 DAY 9 12 28 4 26 11 3 29 30 1 18 7 MIN. QFE PRESSURE IN HPA 884.7 881.5 884.1 883.5 886.4 885.1 885.0 883.8 882.6 886.7 891.9 886.0 881.5 DAY 6 5 2 18 29 1 6 8 8 27 28 24 MEAN QNH PRESSURE IN HPA 1019.9 1016.8 1014.9 1016.7 1016.1 1014.0 1014.0 1014.2 1013.5 1019.2 1023.4 1019.7 1016.9 MAX. QNH PRESSURE IN HPA 1030.8 1022.8 1019.6 1026.2 1021.5 1020.3 1021.5 1023.3 1022.2 1029.8 1033.9 1027.9 1033.9 DAY 9 12 28 4 26 11 3 29 30 1 18 7 MIN. QNH PRESSURE IN HPA 1008.3 1004.8 1007.7 1007.0 1010.2 1008.8 1008.7 1007.3 1006.0 1010.6 1016.3 1009.8 1004.8 DAY 6 5 2 18 29 1 6 8 8 27 28 24 MEAN QFF PRESSURE IN HPA 1024.2 1020.4 1016.6 1015.4 1011.4 1007.5 1006.0 1006.8 1007.2 1017.1 1024.9 1021.9 1015.0 MAX. QFF PRESSURE IN HPA 1037.8 1031.2 1023.6 1029.1 1018.5 1015.7 1013.9 1018.5 1017.3 1027.2 1038.6 1034.8 1038.6 DAY 10 3 16 4 26 11 3 29 24 18 18 7 MIN. QFF PRESSURE IN HPA 1006.6 1007.6 1007.1 1002.9 1003.6 1000.3 1000.1 999.3 998.4 1005.0 1016.1 1009.7 998.4 DAY 6 1 2 18 29 1 6 8 8 27 6 29 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 894.8 892.0 890.4 891.7 891.5 889.8 889.7 889.9 889.5 894.4 898.1 894.8 892.2 MAX. QFE PRESSURE IN HPA 904.9 897.7 894.8 900.4 895.7 895.5 896.1 897.7 898.4 904.0 907.6 903.0 907.6 DAY 9 12 28 4 7 11 3 29 30 1 18 7 MIN. QFE PRESSURE IN HPA 883.3 882.3 883.4 883.6 886.5 885.3 885.1 884.8 882.1 885.8 891.8 885.7 882.1 DAY 6 5 25 18 29 4 6 8 8 26 1 24 MEAN QNH PRESSURE IN HPA 1019.6 1016.5 1014.6 1016.2 1015.9 1014.0 1013.9 1014.2 1013.6 1019.1 1023.3 1019.6 1016.7 MAX. QNH PRESSURE IN HPA 1030.8 1022.8 1019.6 1025.8 1020.6 1020.3 1021.0 1022.8 1023.6 1029.8 1033.8 1028.7 1033.8 DAY 9 12 28 4 7 11 3 29 30 1 18 7 MIN. QNH PRESSURE IN HPA 1006.8 1005.7 1006.9 1007.1 1010.3 1009.0 1008.8 1008.4 1005.4 1009.6 1016.2 1009.4 1005.4 DAY 6 5 25 18 29 4 6 8 8 26 1 24 MEAN QFF PRESSURE IN HPA 1023.1 1019.5 1015.9 1014.6 1010.9 1007.3 1005.6 1006.4 1006.8 1016.4 1024.1 1020.8 1014.3 MAX. QFF PRESSURE IN HPA 1036.7 1031.0 1022.8 1028.3 1018.3 1015.2 1012.9 1017.5 1017.7 1027.0 1037.1 1034.0 1037.1 DAY 9 3 16 4 1 11 3 29 24 18 18 7 MIN. QFF PRESSURE IN HPA 1004.3 1004.2 1004.9 1002.3 1003.3 999.1 1000.0 999.1 997.1 1005.1 1015.7 1007.8 997.1 DAY 6 1 25 18 29 4 6 8 8 26 1 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.0 -1.2 4.2 12.8 16.9 22.7 25.7 25.3 19.7 15.0 6.8 3.3 12.8 MINIMUN AIR TEMPERATURE (C) -2.6 -6.1 -0.7 6.4 10.5 16.2 18.7 16.8 12.8 8.4 2.3 -0.6 6.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 3 2 0 0 0 0 5 DAYS WITH MINIMUM TEMP. <=-4 8 16 6 0 0 0 0 0 0 0 0 3 33 DAYS WITH FREEZING MIN.<= 0 22 24 20 5 0 0 0 0 0 0 9 22 102 TEMPERATURE RECORDS LOWEST(C) -14.0 -18.2 -8.4 -1.0 4.2 12.6 14.5 8.4 6.4 3.0 -2.8 -5.6 -18.2 DAY 31 2 9 13 7 20 1 27 16 21 30 29 MAXIMUM AIR TEMPERATURE (C) 7.3 5.2 10.0 19.8 23.3 29.8 33.3 33.8 27.4 22.9 12.7 8.3 19.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 5 18 26 29 8 2 0 0 88 DAYS WITH MAXIMUM TEMP. <= 0 2 5 0 0 0 0 0 0 0 0 0 1 8 TEMPERATURE RECORDS HIGHEST(C) 16.4 14.2 22.8 28.6 34.0 35.6 39.0 39.4 39.0 30.6 21.4 15.6 39.4 DAY 7 22 24 28 28 16 25 14 1 2 4 10 DIF. BETWEEN (MAX.-MIN.) (C) 9.9 11.3 10.7 13.4 12.8 13.6 14.6 17.0 14.6 14.5 10.4 8.9 12.7 MEAN DAILY TEMP. (MDT) (C) 2.4 -0.4 4.7 13.1 16.9 23.0 26.0 25.3 20.1 15.7 7.5 3.8 13.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 9.1 69.6 153.6 134.2 20.5 0.0 0.0 0.0 387.0 HEATING DEG. DAYS(BASE 18 0C) 484.6 516.1 413.8 151.0 73.5 1.0 0.0 0.0 6.4 83.4 315.0 439.2 2484.0 DEWPOINT (MEAN C) -5.2 -7.5 -3.3 3.4 6.7 9.9 11.7 6.9 5.8 5.0 2.2 -1.3 2.9 MIXING RATIO (G/KG) 3.07 2.63 3.54 5.76 7.09 8.92 10.38 7.96 6.98 6.39 5.11 3.95 5.98 VAPOUR PRESSURE (HPA) 4.38 3.76 5.03 8.15 10.04 12.56 14.54 11.21 9.89 9.08 7.29 5.63 8.46 SATURATION DEF. (HPA) 3.07 2.30 3.84 7.81 10.48 16.25 19.76 22.66 14.23 8.89 3.11 2.39 9.56 RELATIVE HUMIDITY (MEAN %) 64 65 63 58 56 49 48 37 46 57 75 74 58 RELATIVE HUMIDITY (MAX. %) 82 83 84 82 78 70 73 59 72 82 90 88 79 RELATIVE HUMIDITY (MIN. %) 42 43 40 34 35 30 25 18 26 32 56 57 37 RELATIVE HUMIDITY (MEAN% 03UTC) 74 77 79 76 71 64 65 54 65 75 88 84 73 RELATIVE HUMIDITY (MEAN% 09UTC) 55 55 48 42 43 37 32 25 32 41 60 62 44 RELATIVE HUMIDITY (MEAN% 15UTC) 59 58 53 47 45 38 33 25 35 48 73 72 49 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 20.5 25.3 43.4 26.7 55.6 14.1 2.3 0.0 0.2 35.6 38.2 19.3 281.2 DAYS WITH PRECIPITATION >=10 0 0 2 1 2 0 0 0 0 1 2 0 8 DAYS WITH PRECIPITATION >= 5 1 2 2 1 5 0 0 0 0 3 3 1 18 DAYS WITH PRECIPITATION >= 1 5 6 11 6 8 5 1 0 0 6 5 4 57 DAYS WITH PRECIPITATION 13 9 15 8 10 11 1 0 1 6 10 10 94 GREATEST DAILY PRECIPITATION 9.5 8.6 12.0 12.4 17.7 3.2 2.3 0.0 0.2 12.0 14.4 7.2 17.7 DAY 28 1 18 18 5 2 21 ** 15 31 6 17 DAY WITH THUNDER STORM 0 1 2 1 4 11 0 0 0 2 2 0 23 DAYS WITH SNOW OR SLEET 6 7 10 2 0 0 0 0 0 0 0 4 29 DAYS WITH DUST 1 0 0 2 0 0 0 1 2 1 0 0 7 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 11.0 10.2 13.1 13.5 12.3 10.6 12.7 13.1 12.4 11.5 9.9 9.8 11.9 PREVAILING WIND PERCENT 19.0 26.3 30.6 24.6 25.4 34.2 43.1 25.8 45.0 22.2 15.8 13.3 27.1 CALMS PERCENT OF WIND 68.1 64.7 53.6 56.7 61.7 47.1 35.1 54.0 45.4 74.2 77.9 79.8 59.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 257 288 267 274 282 293 288 292 279 272 259 267 279 VECTOR WIND MAGNITUDE(KNOTS) 2.1 2.4 4.1 3.3 3.8 4.6 6.4 3.0 5.7 2.6 1.8 1.2 3.4 WIND STEADINESES (MEAN %) 60.0 68.6 74.5 66.0 88.4 78.0 81.0 56.6 87.7 92.9 75.0 60.0 75.6 WIND SPEED (MEAN KNOTS) 3.5 3.5 5.5 5.0 4.3 5.9 7.9 5.3 6.5 2.8 2.4 2.0 4.5 FASTEST WIND DIRECTION 150 280 280 270 270 300 280 270 270 280 270 30 270 FASTEST WIND SPEED (KNOTS) 25 39 47 68 27 29 29 29 31 54 29 39 68 DAY 6 6 8 10 10 16 31 21 14 7 5 23 DAYS WITH SKY CLEAR (0-2)/8 15 13 8 13 18 17 22 30 27 19 14 13 209 DAYS WITH P.CLOUDY (3-6)/8 8 8 12 10 5 10 9 1 3 7 7 8 88 DAYS WITH CLOUDY (7-8)/8 8 7 11 7 8 3 0 0 0 5 9 10 68 DAYS WITH VISIBILITY =< 2 KM 3 3 5 1 0 1 0 0 0 0 0 0 13 DURATION OF SUNSHINE HOURS 167.5 163.8 173.1 244.9 275.0 290.8 341.0 353.0 282.8 243.6 166.6 145.2 2847.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 891.7 893.0 888.8 888.8 891.7 888.1 886.5 888.7 892.5 893.4 895.6 892.8 891.0 MAX. QFE PRESSURE IN HPA 901.7 900.1 904.4 896.1 898.6 894.2 892.9 894.3 899.4 900.7 907.8 901.3 907.8 DAY-HOUR 24- 6 25- 6 11- 6 20- 6 12- 6 6-18 19- 6 21- 6 19- 6 8- 6 7- 6 28- 6 MIN. QFE PRESSURE IN HPA 881.6 884.1 878.6 877.2 879.9 882.7 881.4 881.7 882.3 888.2 888.7 883.0 877.2 DAY-HOUR 16- 3 1- 0 25-21 9-21 4-15 30-12 11-12 5-15 2- 9 6-12 5-12 10- 0 MEAN QNH PRESSURE IN HPA 1016.2 1017.6 1012.9 1012.9 1016.1 1012.1 1010.3 1012.8 1017.0 1017.9 1020.5 1017.3 1015.3 MAX. QNH PRESSURE IN HPA 1027.2 1025.5 1030.2 1021.0 1023.8 1018.9 1017.4 1019.0 1024.7 1026.1 1034.0 1026.8 1034.0 DAY-HOUR 24- 6 25- 6 11- 6 20- 6 12- 6 6-18 19- 6 21- 6 19- 6 8- 6 7- 6 28- 6 MIN. QNH PRESSURE IN HPA 1004.9 1007.7 1001.5 1000.0 1003.0 1006.1 1004.7 1005.0 1005.7 1012.2 1012.8 1006.4 1000.0 DAY-HOUR 16- 3 1- 0 25-21 9-21 4-15 30-12 11-12 5-15 2- 9 6-12 5-12 10- 0 MEAN QFF PRESSURE IN HPA 1019.0 1022.1 1014.6 1010.4 1011.8 1005.1 1001.9 1004.8 1011.4 1014.5 1020.9 1019.5 1013.0 MAX. QFF PRESSURE IN HPA 1031.8 1033.5 1034.8 1022.3 1021.4 1013.9 1009.6 1012.1 1020.7 1023.7 1035.8 1031.8 1035.8 DAY-HOUR 19- 6 8- 6 11- 3 13- 6 16- 6 6-18 19- 6 21- 6 15- 6 9- 3 8- 6 28- 6 MIN. QFF PRESSURE IN HPA 1004.3 1008.1 998.7 995.9 997.1 998.9 996.2 995.9 997.0 1005.4 1007.8 1004.8 995.9 DAY-HOUR 16- 3 22-12 25- 9 9-21 4-15 30-12 11-15 14-12 2- 9 7- 0 5-12 10- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 891.9 892.5 888.4 888.8 891.5 888.0 886.6 888.8 892.6 893.2 895.5 892.7 890.9 MAX. QFE PRESSURE IN HPA 901.1 898.6 902.3 894.6 897.7 892.1 891.2 892.9 897.8 899.2 906.4 899.9 906.4 DAY 24 8 11 14 12 8 20 22 7 9 8 29 MIN. QFE PRESSURE IN HPA 883.7 884.1 879.4 878.6 880.6 884.9 882.3 883.3 883.7 888.2 889.2 883.0 878.6 DAY 16 1 26 10 5 30 16 15 2 7 5 10 MEAN QNH PRESSURE IN HPA 1016.3 1017.0 1012.5 1012.8 1015.9 1012.0 1010.4 1012.9 1017.1 1017.8 1020.4 1017.2 1015.2 MAX. QNH PRESSURE IN HPA 1026.6 1023.8 1027.9 1019.3 1022.8 1016.6 1015.6 1017.4 1022.9 1024.5 1032.5 1025.2 1032.5 DAY 24 8 11 14 12 8 20 22 7 9 8 29 MIN. QNH PRESSURE IN HPA 1007.2 1007.7 1002.4 1001.5 1003.8 1008.6 1005.7 1006.8 1007.2 1012.2 1013.3 1006.4 1001.5 DAY 16 1 26 10 5 30 16 15 2 7 5 10 MEAN QFF PRESSURE IN HPA 1018.6 1021.0 1013.9 1010.2 1011.6 1005.0 1001.8 1004.7 1011.1 1013.9 1020.4 1019.0 1012.6 MAX. QFF PRESSURE IN HPA 1030.8 1032.8 1032.5 1020.5 1020.3 1011.6 1008.0 1010.0 1018.0 1022.2 1034.5 1029.7 1034.5 DAY 24 8 11 13 7 5 20 28 7 9 8 28 MIN. QFF PRESSURE IN HPA 1006.4 1008.8 1001.8 997.7 997.7 1000.1 997.2 997.5 998.4 1005.4 1008.4 1004.8 997.2 DAY 16 23 26 10 5 23 16 15 2 7 5 10 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 892.0 892.9 889.1 889.4 892.2 888.7 887.5 889.7 893.3 893.7 895.9 892.9 891.4 MAX. QFE PRESSURE IN HPA 901.4 899.1 903.6 895.3 898.3 893.0 892.0 893.9 898.6 899.7 906.7 899.4 906.7 DAY 24 21 11 14 12 8 19 24 19 8 8 28 MIN. QFE PRESSURE IN HPA 881.6 886.1 881.2 880.3 883.6 885.3 882.6 884.3 884.1 889.4 889.5 883.8 880.3 DAY 16 23 25 10 5 30 16 5 2 7 5 10 MEAN QNH PRESSURE IN HPA 1016.5 1017.5 1013.2 1013.5 1016.7 1012.8 1011.4 1013.9 1017.9 1018.3 1020.8 1017.5 1015.8 MAX. QNH PRESSURE IN HPA 1026.9 1024.3 1029.3 1020.1 1023.5 1017.6 1016.4 1018.6 1023.8 1025.0 1032.8 1024.7 1032.8 DAY 24 21 11 14 12 8 19 24 19 8 8 28 MIN. QNH PRESSURE IN HPA 1004.9 1009.9 1004.4 1003.4 1007.1 1009.0 1006.0 1007.9 1007.7 1013.6 1013.7 1007.3 1003.4 DAY 16 23 25 10 5 30 16 5 2 7 5 10 MEAN QFF PRESSURE IN HPA 1019.8 1022.6 1015.3 1011.4 1012.6 1005.8 1003.1 1006.2 1012.9 1015.7 1021.9 1020.1 1013.9 MAX. QFF PRESSURE IN HPA 1031.1 1033.2 1034.8 1021.4 1021.4 1011.9 1009.0 1011.5 1019.8 1023.7 1035.8 1030.1 1035.8 DAY 24 8 11 13 16 4 20 28 8 9 8 28 MIN. QFF PRESSURE IN HPA 1004.3 1010.3 1001.4 1000.2 1001.4 1000.9 997.2 999.3 999.4 1007.6 1010.2 1005.8 997.2 DAY 16 23 25 10 5 23 16 15 2 7 5 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 893.0 893.8 889.9 889.8 892.4 888.8 887.6 890.0 893.7 894.4 896.7 893.9 892.0 MAX. QFE PRESSURE IN HPA 901.7 900.1 904.4 896.1 898.6 893.0 892.9 894.3 899.4 900.7 907.8 901.3 907.8 DAY 24 25 11 20 12 8 19 21 19 8 7 28 MIN. QFE PRESSURE IN HPA 882.2 887.3 881.1 881.7 886.0 885.5 883.3 884.3 884.7 890.2 889.2 885.4 881.1 DAY 16 23 25 10 4 30 16 5 2 3 5 10 MEAN QNH PRESSURE IN HPA 1017.5 1018.5 1014.1 1014.0 1016.9 1012.9 1011.6 1014.2 1018.4 1019.2 1021.6 1018.5 1016.5 MAX. QNH PRESSURE IN HPA 1027.2 1025.5 1030.2 1021.0 1023.8 1017.6 1017.4 1019.0 1024.7 1026.1 1034.0 1026.8 1034.0 DAY 24 25 11 20 12 8 19 21 19 8 7 28 MIN. QNH PRESSURE IN HPA 1005.6 1011.2 1004.3 1005.0 1009.8 1009.2 1006.8 1007.9 1008.3 1014.4 1013.3 1009.1 1004.3 DAY 16 23 25 10 4 30 16 5 2 3 5 10 MEAN QFF PRESSURE IN HPA 1020.6 1023.4 1016.1 1011.7 1012.7 1005.9 1003.4 1006.4 1012.9 1015.7 1022.3 1020.9 1014.3 MAX. QFF PRESSURE IN HPA 1031.8 1033.5 1034.8 1022.3 1021.4 1011.2 1009.6 1012.1 1020.7 1023.6 1035.8 1031.8 1035.8 DAY 19 8 11 13 16 4 19 21 15 8 8 28 MIN. QFF PRESSURE IN HPA 1004.5 1012.2 1001.6 1002.1 1005.1 1001.1 998.2 999.1 1000.3 1008.0 1008.3 1007.4 998.2 DAY 16 23 25 5 4 23 16 14 2 3 5 10 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 891.9 893.3 889.0 888.8 891.8 888.1 886.7 888.9 892.4 893.2 895.6 892.7 891.0 MAX. QFE PRESSURE IN HPA 900.5 899.8 903.7 896.0 898.0 892.2 892.6 893.0 898.0 899.8 906.5 900.4 906.5 DAY 19 21 11 20 16 8 19 24 7 9 7 28 MIN. QFE PRESSURE IN HPA 882.1 886.0 879.4 880.8 883.9 884.7 882.5 883.3 882.3 889.1 888.9 883.3 879.4 DAY 16 22 25 5 4 25 16 5 2 6 5 10 MEAN QNH PRESSURE IN HPA 1016.3 1017.9 1013.1 1012.9 1016.2 1012.1 1010.5 1013.0 1016.9 1017.8 1020.5 1017.3 1015.4 MAX. QNH PRESSURE IN HPA 1025.9 1025.1 1029.5 1020.9 1023.1 1016.7 1017.1 1017.6 1023.1 1025.1 1032.6 1025.8 1032.6 DAY 19 21 11 20 16 8 19 24 7 9 7 28 MIN. QNH PRESSURE IN HPA 1005.4 1009.8 1002.4 1004.0 1007.4 1008.3 1005.9 1006.8 1005.7 1013.2 1013.0 1006.8 1002.4 DAY 16 22 25 5 4 25 16 5 2 6 5 10 MEAN QFF PRESSURE IN HPA 1018.8 1022.0 1014.5 1010.2 1011.7 1004.9 1002.0 1004.8 1011.0 1013.8 1020.6 1019.1 1012.8 MAX. QFF PRESSURE IN HPA 1031.2 1031.6 1033.9 1021.1 1020.6 1010.2 1009.2 1010.5 1018.7 1022.5 1034.3 1029.7 1034.3 DAY 19 8 11 13 16 4 19 25 15 9 8 28 MIN. QFF PRESSURE IN HPA 1005.1 1011.3 998.7 999.9 1001.8 1000.2 997.5 997.3 997.0 1007.1 1008.3 1004.9 997.0 DAY 16 23 25 5 4 23 16 14 2 6 5 10 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 890.9 892.3 888.1 887.7 891.1 887.2 885.3 887.5 891.2 892.3 894.8 892.0 890.0 MAX. QFE PRESSURE IN HPA 899.5 897.8 901.8 894.5 896.8 890.8 891.6 891.5 896.6 898.8 905.9 900.0 905.9 DAY 19 7 11 13 16 8 19 24 7 8 7 28 MIN. QFE PRESSURE IN HPA 882.3 884.3 879.8 880.0 881.0 882.7 881.4 882.0 882.9 888.2 888.7 883.3 879.8 DAY 16 22 17 5 4 30 11 14 2 6 5 10 MEAN QNH PRESSURE IN HPA 1015.2 1016.8 1012.1 1011.7 1015.4 1011.1 1009.0 1011.4 1015.6 1016.7 1019.5 1016.4 1014.2 MAX. QNH PRESSURE IN HPA 1024.8 1022.9 1027.3 1019.2 1021.8 1015.1 1016.0 1015.9 1021.6 1024.0 1031.9 1025.3 1031.9 DAY 19 7 11 13 16 8 19 24 7 8 7 28 MIN. QNH PRESSURE IN HPA 1005.7 1007.9 1002.9 1003.1 1004.2 1006.1 1004.7 1005.3 1006.3 1012.2 1012.8 1006.8 1002.9 DAY 16 22 17 5 4 30 11 14 2 6 5 10 MEAN QFF PRESSURE IN HPA 1017.6 1020.8 1013.5 1009.0 1011.1 1004.1 1000.5 1003.3 1009.7 1012.9 1019.5 1018.1 1011.7 MAX. QFF PRESSURE IN HPA 1029.6 1030.5 1031.5 1020.0 1019.0 1010.2 1008.1 1009.0 1017.0 1021.6 1033.1 1029.1 1033.1 DAY 19 8 11 13 15 4 19 28 15 9 7 28 MIN. QFF PRESSURE IN HPA 1005.9 1008.1 1000.2 998.8 998.6 998.9 996.5 995.9 998.3 1006.5 1007.8 1005.3 995.9 DAY 16 22 25 5 4 30 16 14 2 6 5 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 891.3 892.8 888.5 888.0 891.0 887.4 885.1 887.4 891.4 892.8 895.2 892.5 890.3 MAX. QFE PRESSURE IN HPA 900.1 898.9 902.0 894.9 896.3 891.0 891.3 891.3 896.6 899.5 906.6 900.6 906.6 DAY 23 7 11 13 15 4 19 21 7 8 7 28 MIN. QFE PRESSURE IN HPA 882.9 884.5 879.1 880.2 879.9 883.0 881.4 881.7 883.4 888.2 890.7 883.6 879.1 DAY 31 22 25 9 4 30 11 5 2 6 5 9 MEAN QNH PRESSURE IN HPA 1015.7 1017.3 1012.6 1012.0 1015.4 1011.4 1008.8 1011.3 1015.7 1017.3 1020.0 1017.0 1014.5 MAX. QNH PRESSURE IN HPA 1025.5 1024.1 1027.6 1019.7 1021.2 1015.3 1015.7 1015.7 1021.6 1024.8 1032.7 1026.0 1032.7 DAY 23 7 11 13 15 4 19 21 7 8 7 28 MIN. QNH PRESSURE IN HPA 1006.3 1008.1 1002.1 1003.3 1003.0 1006.4 1004.7 1005.0 1006.9 1012.2 1015.0 1007.1 1002.1 DAY 31 22 25 9 4 30 11 5 2 6 5 9 MEAN QFF PRESSURE IN HPA 1019.0 1022.4 1014.6 1009.8 1011.2 1004.5 1000.6 1003.6 1010.8 1014.7 1021.1 1019.7 1012.7 MAX. QFF PRESSURE IN HPA 1029.8 1032.3 1032.5 1020.7 1019.1 1011.3 1008.3 1009.2 1017.5 1023.1 1035.1 1031.5 1035.1 DAY 19 8 11 13 15 4 19 28 15 9 7 28 MIN. QFF PRESSURE IN HPA 1008.9 1008.9 999.9 1000.5 997.1 998.9 996.2 996.2 998.9 1008.2 1011.2 1006.2 996.2 DAY 16 22 25 5 4 30 11 14 2 6 5 9 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 891.6 893.4 889.2 889.3 891.9 888.4 886.7 888.9 892.7 893.7 895.7 893.0 891.2 MAX. QFE PRESSURE IN HPA 901.4 900.0 902.5 895.3 897.6 894.2 892.0 893.0 897.6 900.0 906.4 901.0 906.4 DAY 23 7 11 13 11 6 19 21 7 8 7 28 MIN. QFE PRESSURE IN HPA 882.5 885.5 879.1 879.1 880.8 884.7 883.2 883.0 884.7 888.6 891.5 883.2 879.1 DAY 31 22 25 9 4 30 15 14 1 6 19 9 MEAN QNH PRESSURE IN HPA 1016.0 1018.0 1013.3 1013.5 1016.4 1012.5 1010.5 1013.0 1017.2 1018.4 1020.6 1017.6 1015.6 MAX. QNH PRESSURE IN HPA 1026.9 1025.3 1028.1 1020.1 1022.7 1018.9 1016.4 1017.6 1022.7 1025.3 1032.5 1026.5 1032.5 DAY 23 7 11 13 11 6 19 21 7 8 7 28 MIN. QNH PRESSURE IN HPA 1005.9 1009.2 1002.1 1002.1 1004.0 1008.3 1006.7 1006.4 1008.3 1012.7 1015.9 1006.7 1002.1 DAY 31 22 25 9 4 30 15 14 1 6 19 9 MEAN QFF PRESSURE IN HPA 1019.1 1022.9 1015.2 1011.1 1012.1 1005.6 1002.3 1005.1 1011.8 1015.0 1021.3 1020.0 1013.5 MAX. QFF PRESSURE IN HPA 1030.8 1032.9 1032.5 1021.3 1020.4 1013.9 1009.4 1010.7 1018.1 1023.2 1034.3 1031.8 1034.3 DAY 23 7 11 13 15 6 19 24 7 8 7 28 MIN. QFF PRESSURE IN HPA 1009.4 1010.7 1000.6 998.2 998.3 1000.7 998.4 996.7 999.8 1007.7 1012.5 1005.2 996.7 DAY 16 22 25 9 4 26 15 14 2 6 4 9 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 891.6 893.2 888.8 888.9 891.7 888.2 886.7 888.8 892.6 893.6 895.6 892.7 891.0 MAX. QFE PRESSURE IN HPA 901.6 899.3 902.3 895.3 897.2 893.6 891.7 893.0 897.7 899.7 906.7 900.6 906.7 DAY 23 7 10 13 11 7 19 21 18 8 7 28 MIN. QFE PRESSURE IN HPA 883.5 886.1 878.6 877.2 881.4 884.1 882.5 883.3 884.2 888.2 891.2 883.2 877.2 DAY 31 22 25 9 4 30 15 14 1 6 4 9 MEAN QNH PRESSURE IN HPA 1016.0 1017.8 1012.8 1013.0 1016.1 1012.2 1010.5 1012.9 1017.2 1018.2 1020.4 1017.3 1015.4 MAX. QNH PRESSURE IN HPA 1027.1 1024.6 1027.9 1020.1 1022.2 1018.2 1016.1 1017.6 1022.8 1025.0 1032.8 1026.0 1032.8 DAY 23 7 10 13 11 7 19 21 18 8 7 28 MIN. QNH PRESSURE IN HPA 1007.0 1009.9 1001.5 1000.0 1004.7 1007.7 1005.9 1006.8 1007.8 1012.2 1015.6 1006.7 1000.0 DAY 31 22 25 9 4 30 15 14 1 6 4 9 MEAN QFF PRESSURE IN HPA 1018.5 1021.9 1014.2 1010.3 1011.5 1005.0 1001.8 1004.6 1011.3 1014.3 1020.5 1019.1 1012.8 MAX. QFF PRESSURE IN HPA 1030.9 1032.5 1032.5 1021.0 1020.6 1011.9 1008.5 1010.2 1017.8 1022.7 1034.8 1030.5 1034.8 DAY 23 7 10 12 15 4 19 21 15 8 7 28 MIN. QFF PRESSURE IN HPA 1008.1 1010.5 999.0 995.9 998.6 1000.1 997.4 996.7 999.0 1005.8 1010.6 1004.8 995.9 DAY 15 22 25 9 4 22 15 14 2 6 4 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -0.8 0.1 6.4 13.9 16.8 23.2 24.8 24.3 19.8 13.6 9.8 5.8 13.2 MINIMUN AIR TEMPERATURE (C) -4.2 -3.1 1.0 7.9 10.5 15.1 18.4 17.9 12.6 6.6 4.0 1.3 7.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 2 2 0 0 0 0 4 DAYS WITH MINIMUM TEMP. <=-4 14 12 3 0 0 0 0 0 0 0 0 1 30 DAYS WITH FREEZING MIN.<= 0 29 23 9 0 0 0 0 0 0 2 2 7 72 TEMPERATURE RECORDS LOWEST(C) -11.0 -9.8 -10.6 1.0 3.6 10.0 15.0 13.8 4.4 -2.0 -0.6 -4.4 -11.0 DAY 15 23 1 3 3 1 3 26 13 10 26 23 MAXIMUM AIR TEMPERATURE (C) 3.4 4.8 12.5 20.8 23.1 30.8 31.4 31.4 27.5 21.8 17.2 12.2 19.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 2 21 21 23 6 1 0 0 76 DAYS WITH MAXIMUM TEMP. <= 0 2 7 2 0 0 0 0 0 0 0 0 0 11 TEMPERATURE RECORDS HIGHEST(C) 9.6 14.0 24.0 31.6 31.2 35.6 37.8 35.6 34.6 33.0 25.6 25.0 37.8 DAY 1 7 29 18 21 26 5 28 1 1 1 11 DIF. BETWEEN (MAX.-MIN.) (C) 7.6 7.9 11.5 12.9 12.6 15.7 13.0 13.5 14.9 15.2 13.2 10.9 12.4 MEAN DAILY TEMP. (MDT) (C) -0.4 0.8 6.7 14.3 16.8 22.9 24.9 24.7 20.1 14.2 10.6 6.8 13.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 2.1 0.6 66.1 122.2 113.3 27.4 2.3 0.0 0.0 334.0 HEATING DEG. DAYS(BASE 18 0C) 570.1 480.3 348.7 128.4 59.1 0.9 0.0 0.0 13.2 124.4 222.8 348.7 2296.7 DEWPOINT (MEAN C) -4.0 -4.4 -0.9 5.7 7.8 8.0 11.1 11.7 6.9 3.5 1.8 0.3 4.0 MIXING RATIO (G/KG) 3.26 3.20 4.21 6.68 7.73 7.96 9.84 10.17 7.80 5.88 5.02 4.47 6.35 VAPOUR PRESSURE (HPA) 4.65 4.57 5.98 9.45 10.93 11.25 13.81 14.31 11.01 8.37 7.17 6.40 8.99 SATURATION DEF. (HPA) 1.26 1.96 4.46 7.67 9.06 18.56 18.48 17.17 13.40 8.24 5.50 3.21 9.08 RELATIVE HUMIDITY (MEAN %) 81 74 64 62 59 43 47 50 49 56 61 72 60 RELATIVE HUMIDITY (MAX. %) 92 87 86 84 81 68 70 74 72 78 84 89 80 RELATIVE HUMIDITY (MIN. %) 65 57 40 39 40 23 28 29 29 35 39 50 40 RELATIVE HUMIDITY (MEAN% 03UTC) 88 83 78 80 73 60 64 71 68 75 78 83 75 RELATIVE HUMIDITY (MEAN% 09UTC) 71 64 49 47 46 27 34 35 34 41 49 60 46 RELATIVE HUMIDITY (MEAN% 15UTC) 79 69 57 53 50 28 35 38 40 48 54 67 52 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 29.1 26.7 34.3 26.2 56.7 1.0 2.3 13.6 7.4 3.0 3.8 7.6 211.7 DAYS WITH PRECIPITATION >=10 0 0 0 1 2 0 0 1 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 1 1 4 2 4 0 0 1 1 0 0 0 14 DAYS WITH PRECIPITATION >= 1 9 7 7 4 8 1 1 1 2 1 1 3 45 DAYS WITH PRECIPITATION 19 14 11 6 11 1 4 10 5 7 3 9 100 GREATEST DAILY PRECIPITATION 8.2 7.8 8.0 11.1 19.1 1.0 1.0 11.0 6.1 1.4 3.0 3.6 19.1 DAY 27 9 14 24 30 4 24 6 27 8 29 4 DAY WITH THUNDER STORM 0 0 4 3 7 0 0 6 3 0 0 0 23 DAYS WITH SNOW OR SLEET 19 12 6 0 0 0 0 0 0 0 0 0 37 DAYS WITH DUST 0 0 1 2 0 0 0 0 1 1 0 0 5 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 12.3 14.2 12.1 11.6 12.0 12.6 13.0 11.3 11.8 11.3 10.0 10.0 11.9 PREVAILING WIND PERCENT 19.4 22.3 28.2 36.3 29.8 25.8 48.8 40.3 33.3 28.6 18.8 15.3 29.0 CALMS PERCENT OF WIND 76.2 67.4 58.1 55.8 57.3 54.6 33.5 42.7 58.8 69.8 76.3 78.6 60.7 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 275 273 266 273 280 295 283 285 277 277 273 277 279 VECTOR WIND MAGNITUDE(KNOTS) 2.4 3.2 3.2 4.2 3.3 3.1 6.4 4.7 4.2 3.4 2.0 1.5 3.4 WIND STEADINESES (MEAN %) 88.9 76.2 62.7 85.7 68.7 63.3 80.0 75.8 91.3 100.0 87.0 71.4 77.3 WIND SPEED (MEAN KNOTS) 2.7 4.2 5.1 4.9 4.8 4.9 8.0 6.2 4.6 3.4 2.3 2.1 4.4 FASTEST WIND DIRECTION 270 270 190 290 270 280 270 290 280 280 290 270 270 FASTEST WIND SPEED (KNOTS) 33 49 33 29 33 33 29 29 29 31 29 33 49 DAY 13 27 29 6 15 24 7 5 4 2 11 1 DAYS WITH SKY CLEAR (0-2)/8 3 7 8 10 10 24 21 18 20 18 18 9 166 DAYS WITH P.CLOUDY (3-6)/8 13 9 11 11 15 6 6 12 9 12 9 13 126 DAYS WITH CLOUDY (7-8)/8 15 12 12 9 6 0 4 1 1 1 3 9 73 DAYS WITH VISIBILITY =< 2 KM 7 9 0 2 0 0 0 0 0 2 0 2 22 DURATION OF SUNSHINE HOURS 115.6 115.0 200.5 232.8 279.7 349.1 318.3 313.4 273.9 256.8 191.2 125.3 2771.6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 891.2 892.2 889.9 890.4 891.6 890.9 887.7 890.3 891.6 895.3 895.4 896.8 891.9 MAX. QFE PRESSURE IN HPA 900.1 906.0 900.8 901.8 899.4 896.0 894.4 895.0 898.2 905.8 903.8 905.5 906.0 DAY-HOUR 4- 6 22-18 26- 6 12- 6 9- 6 5- 6 15- 6 25- 6 27- 6 9- 6 20-18 29- 6 MIN. QFE PRESSURE IN HPA 876.9 877.6 877.3 881.8 881.2 886.2 877.7 885.9 884.9 885.2 888.1 886.6 876.9 DAY-HOUR 13-12 14- 0 19- 0 21-12 22- 3 24-12 5-15 22-12 5-12 1-12 1-12 21- 0 MEAN QNH PRESSURE IN HPA 1015.5 1016.6 1014.1 1014.7 1016.0 1015.2 1011.6 1014.6 1016.0 1020.2 1020.3 1021.8 1016.4 MAX. QNH PRESSURE IN HPA 1025.5 1032.0 1026.2 1027.3 1024.7 1020.9 1019.1 1019.8 1023.3 1031.8 1029.6 1031.5 1032.0 DAY-HOUR 4- 6 22-18 26- 6 12- 6 9- 6 5- 6 15- 6 25- 6 27- 6 9- 6 20-18 29- 6 MIN. QNH PRESSURE IN HPA 999.7 1000.4 1000.1 1005.1 1004.4 1010.0 1000.5 1009.7 1008.6 1008.9 1012.1 1010.4 999.7 DAY-HOUR 13-12 14- 0 19- 0 21-12 22- 3 24-12 5-15 22-12 5-12 1-12 1-12 21- 0 MEAN QFF PRESSURE IN HPA 1019.7 1020.3 1014.8 1011.6 1011.6 1008.1 1003.7 1006.8 1010.3 1017.5 1019.3 1022.8 1013.9 MAX. QFF PRESSURE IN HPA 1030.4 1038.3 1028.0 1024.5 1023.2 1014.2 1013.1 1013.0 1020.7 1033.7 1028.8 1033.3 1038.3 DAY-HOUR 4- 6 23- 6 26- 6 12- 6 3- 3 6- 6 15- 9 25- 3 13- 3 10- 3 20-15 29- 6 MIN. QFF PRESSURE IN HPA 1002.5 1003.1 993.9 999.0 997.3 1002.1 991.1 1001.1 1000.2 1001.5 1008.0 1010.8 991.1 DAY-HOUR 13-12 8- 3 30- 6 21-12 22- 3 24-15 5-12 22-12 5-12 1-12 1-12 21- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 890.9 891.8 889.5 890.2 891.6 890.9 887.7 890.3 891.7 895.3 895.3 897.0 891.8 MAX. QFE PRESSURE IN HPA 899.2 904.7 897.8 899.3 898.2 894.7 893.5 893.4 896.7 904.9 903.0 902.8 904.9 DAY 4 23 27 12 10 6 20 19 13 10 21 12 MIN. QFE PRESSURE IN HPA 881.1 877.6 877.3 883.1 881.9 887.7 878.0 887.1 887.0 885.7 889.0 886.6 877.3 DAY 13 14 19 21 22 24 6 13 3 2 11 21 MEAN QNH PRESSURE IN HPA 1015.2 1016.2 1013.7 1014.5 1015.9 1015.2 1011.6 1014.6 1016.1 1020.1 1020.1 1022.0 1016.3 MAX. QNH PRESSURE IN HPA 1024.5 1030.6 1022.9 1024.6 1023.3 1019.4 1018.1 1018.0 1021.7 1030.8 1028.7 1028.5 1030.8 DAY 4 23 27 12 10 6 20 19 13 10 21 12 MIN. QNH PRESSURE IN HPA 1004.3 1000.4 1000.1 1006.6 1005.2 1011.7 1000.9 1011.0 1010.9 1009.4 1013.1 1010.4 1000.1 DAY 13 14 19 21 22 24 6 13 3 2 11 21 MEAN QFF PRESSURE IN HPA 1019.0 1019.5 1014.2 1011.2 1011.6 1008.2 1003.6 1006.6 1010.1 1016.9 1018.6 1022.4 1013.5 MAX. QFF PRESSURE IN HPA 1029.3 1036.9 1024.2 1021.5 1022.7 1013.0 1010.2 1010.4 1019.3 1032.6 1027.4 1029.4 1036.9 DAY 4 23 1 7 3 6 15 19 13 10 21 3 MIN. QFF PRESSURE IN HPA 1007.5 1003.9 995.1 999.9 997.7 1002.6 991.4 1002.8 1001.9 1002.4 1009.7 1010.8 991.4 DAY 13 8 30 21 22 28 6 23 3 2 11 21 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 891.1 892.1 890.1 890.9 892.0 891.7 888.5 891.1 892.4 895.8 895.8 897.1 892.4 MAX. QFE PRESSURE IN HPA 899.2 904.9 898.9 901.0 898.7 895.7 894.0 894.7 897.5 904.9 903.0 903.7 904.9 DAY 4 23 26 12 9 6 15 25 27 10 21 29 MIN. QFE PRESSURE IN HPA 879.8 878.1 877.8 882.7 881.2 888.4 879.5 887.5 887.7 886.9 890.0 886.8 877.8 DAY 13 14 30 21 22 24 6 13 24 2 9 21 MEAN QNH PRESSURE IN HPA 1015.4 1016.6 1014.3 1015.2 1016.5 1016.1 1012.6 1015.5 1016.9 1020.7 1020.7 1022.1 1016.9 MAX. QNH PRESSURE IN HPA 1024.5 1030.8 1024.1 1026.5 1023.9 1020.6 1018.7 1019.4 1022.6 1030.8 1028.7 1029.5 1030.8 DAY 4 23 26 12 9 6 15 25 27 10 21 29 MIN. QNH PRESSURE IN HPA 1002.9 1001.0 1000.7 1006.1 1004.4 1012.4 1002.6 1011.4 1011.7 1010.8 1014.2 1010.7 1000.7 DAY 13 14 30 21 22 24 6 13 24 2 9 21 MEAN QFF PRESSURE IN HPA 1020.0 1020.7 1015.7 1012.7 1012.4 1009.0 1004.8 1008.1 1011.9 1018.9 1020.4 1023.7 1014.8 MAX. QFF PRESSURE IN HPA 1030.1 1038.1 1025.4 1024.0 1023.2 1014.1 1012.3 1013.0 1020.7 1033.7 1028.3 1031.2 1038.1 DAY 4 23 26 12 3 6 15 25 13 10 21 29 MIN. QFF PRESSURE IN HPA 1006.7 1003.1 994.8 1000.2 997.3 1003.6 993.8 1003.8 1003.8 1005.3 1013.0 1012.1 993.8 DAY 13 8 30 21 22 27 6 13 3 2 11 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 891.9 893.1 890.8 891.4 892.2 891.7 888.6 891.4 892.9 896.6 896.7 898.1 893.0 MAX. QFE PRESSURE IN HPA 900.1 905.9 900.8 901.8 899.4 896.0 894.4 895.0 898.2 905.8 903.5 905.5 905.9 DAY 4 23 26 12 9 5 15 25 27 9 21 29 MIN. QFE PRESSURE IN HPA 879.0 879.3 877.3 883.2 881.6 888.0 881.1 888.0 887.8 888.7 890.8 887.7 877.3 DAY 13 14 30 21 22 27 6 13 6 1 9 21 MEAN QNH PRESSURE IN HPA 1016.4 1017.7 1015.1 1015.7 1016.7 1016.1 1012.7 1015.8 1017.4 1021.6 1021.7 1023.2 1017.5 MAX. QNH PRESSURE IN HPA 1025.5 1031.9 1026.2 1027.3 1024.7 1020.9 1019.1 1019.8 1023.3 1031.8 1029.2 1031.5 1031.9 DAY 4 23 26 12 9 5 15 25 27 9 21 29 MIN. QNH PRESSURE IN HPA 1002.0 1002.3 1000.1 1006.7 1004.9 1012.0 1004.3 1012.0 1011.8 1012.8 1015.1 1011.7 1000.1 DAY 13 14 30 21 22 27 6 13 6 1 9 21 MEAN QFF PRESSURE IN HPA 1020.8 1021.7 1016.0 1012.9 1012.4 1009.1 1004.8 1008.2 1011.7 1019.0 1020.9 1024.6 1015.2 MAX. QFF PRESSURE IN HPA 1030.4 1038.3 1028.0 1024.5 1022.9 1014.2 1013.0 1012.1 1019.7 1032.4 1028.4 1033.3 1038.3 DAY 4 23 26 12 3 6 15 25 12 10 24 29 MIN. QFF PRESSURE IN HPA 1004.8 1004.7 993.9 1000.1 997.8 1003.1 995.3 1003.3 1004.4 1006.5 1012.7 1012.2 993.9 DAY 13 8 30 21 22 27 6 13 3 2 9 21 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 891.3 892.4 890.1 890.4 891.6 891.0 887.8 890.3 891.5 895.3 895.4 896.6 892.0 MAX. QFE PRESSURE IN HPA 899.3 904.5 900.8 900.5 898.6 895.7 894.4 893.6 897.5 905.3 901.8 905.1 905.3 DAY 22 23 26 12 9 5 15 25 27 9 21 29 MIN. QFE PRESSURE IN HPA 877.9 879.2 877.8 882.5 882.7 887.5 879.3 886.7 886.7 887.1 889.5 887.7 877.8 DAY 13 14 30 21 22 24 5 23 24 1 1 21 MEAN QNH PRESSURE IN HPA 1015.7 1016.9 1014.3 1014.7 1016.0 1015.3 1011.7 1014.6 1015.9 1020.1 1020.3 1021.6 1016.4 MAX. QNH PRESSURE IN HPA 1024.6 1030.3 1026.2 1025.9 1023.8 1020.6 1019.1 1018.2 1022.6 1031.2 1027.3 1031.0 1031.2 DAY 22 23 26 12 9 5 15 25 27 9 21 29 MIN. QNH PRESSURE IN HPA 1000.8 1002.2 1000.7 1005.9 1006.1 1011.4 1002.3 1010.6 1010.6 1011.0 1013.7 1011.7 1000.7 DAY 13 14 30 21 22 24 5 23 24 1 1 21 MEAN QFF PRESSURE IN HPA 1019.6 1020.4 1014.7 1011.5 1011.5 1008.1 1003.7 1006.6 1009.8 1017.0 1018.8 1022.3 1013.7 MAX. QFF PRESSURE IN HPA 1028.9 1036.1 1027.9 1022.5 1021.5 1013.6 1013.1 1010.2 1017.9 1031.3 1026.5 1032.1 1036.1 DAY 22 23 26 12 3 5 15 25 12 9 24 29 MIN. QFF PRESSURE IN HPA 1003.1 1003.5 995.8 999.6 999.4 1003.1 992.6 1001.9 1002.4 1004.4 1009.3 1010.8 992.6 DAY 13 8 30 21 22 27 5 23 5 1 1 21 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 890.6 891.4 889.2 889.4 890.8 890.1 886.8 889.3 890.4 894.2 894.5 895.7 891.0 MAX. QFE PRESSURE IN HPA 898.9 903.3 899.8 898.9 897.5 895.1 893.2 892.0 896.6 904.4 901.4 904.1 904.4 DAY 22 22 26 12 8 5 15 25 27 9 20 29 MIN. QFE PRESSURE IN HPA 876.9 879.5 881.0 881.8 883.1 886.2 877.8 885.9 884.9 885.2 888.1 888.6 876.9 DAY 13 14 18 21 21 24 5 22 5 1 1 21 MEAN QNH PRESSURE IN HPA 1014.9 1015.8 1013.3 1013.6 1015.1 1014.3 1010.6 1013.4 1014.7 1018.9 1019.2 1020.5 1015.4 MAX. QNH PRESSURE IN HPA 1024.1 1029.0 1025.1 1024.1 1022.6 1019.9 1017.8 1016.4 1021.6 1030.2 1026.9 1029.9 1030.2 DAY 22 22 26 12 8 5 15 25 27 9 20 29 MIN. QNH PRESSURE IN HPA 999.7 1002.6 1004.2 1005.1 1006.6 1010.0 1000.7 1009.7 1008.6 1008.9 1012.1 1012.7 999.7 DAY 13 14 18 21 21 24 5 22 5 1 1 21 MEAN QFF PRESSURE IN HPA 1018.7 1019.1 1013.7 1010.3 1010.7 1007.3 1002.6 1005.5 1008.8 1015.7 1017.7 1020.9 1012.6 MAX. QFF PRESSURE IN HPA 1028.3 1033.8 1026.6 1021.1 1020.9 1013.2 1011.6 1009.5 1017.1 1030.5 1025.9 1030.6 1033.8 DAY 22 23 26 1 3 5 15 8 12 9 20 29 MIN. QFF PRESSURE IN HPA 1002.5 1003.4 999.8 999.0 1000.1 1002.2 991.1 1001.1 1000.2 1001.5 1008.0 1012.4 991.1 DAY 13 8 18 21 21 28 5 22 5 1 1 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 891.1 891.8 889.4 889.7 890.9 890.0 886.6 889.4 890.6 894.7 895.0 896.2 891.3 MAX. QFE PRESSURE IN HPA 899.1 904.4 899.3 898.6 897.6 894.3 892.4 892.3 896.4 904.6 903.2 904.4 904.6 DAY 22 22 26 12 8 5 19 9 12 9 20 29 MIN. QFE PRESSURE IN HPA 877.9 878.4 879.9 882.1 882.4 886.2 877.7 886.3 885.8 885.5 888.5 890.0 877.7 DAY 13 13 18 21 21 24 5 23 4 1 1 17 MEAN QNH PRESSURE IN HPA 1015.4 1016.3 1013.6 1013.9 1015.2 1014.2 1010.5 1013.5 1014.9 1019.5 1019.8 1021.2 1015.7 MAX. QNH PRESSURE IN HPA 1024.3 1030.2 1024.6 1023.8 1022.7 1019.0 1016.9 1016.8 1021.3 1030.5 1028.9 1030.2 1030.5 DAY 22 22 26 12 8 5 19 9 12 9 20 29 MIN. QNH PRESSURE IN HPA 1000.8 1001.3 1003.0 1005.4 1005.8 1010.0 1000.5 1010.1 1009.6 1009.2 1012.6 1014.2 1000.5 DAY 13 13 18 21 21 24 5 23 4 1 1 17 MEAN QFF PRESSURE IN HPA 1020.0 1020.4 1014.7 1011.3 1011.0 1007.2 1002.7 1006.2 1009.9 1017.6 1019.6 1022.7 1013.6 MAX. QFF PRESSURE IN HPA 1029.0 1035.6 1026.4 1021.1 1021.3 1012.3 1010.7 1010.4 1018.3 1031.7 1028.8 1032.5 1035.6 DAY 22 23 26 1 2 5 15 8 12 9 20 29 MIN. QFF PRESSURE IN HPA 1004.3 1005.2 999.8 1000.2 999.0 1002.1 991.3 1001.8 1002.0 1003.9 1010.7 1013.6 991.3 DAY 13 8 18 21 21 24 5 23 4 1 1 17 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 891.5 892.5 890.1 890.7 892.0 891.1 887.8 890.6 891.7 895.5 895.5 897.0 892.2 MAX. QFE PRESSURE IN HPA 899.3 906.0 899.1 899.0 899.2 895.4 893.6 894.2 897.9 904.8 903.8 904.2 906.0 DAY 22 22 26 12 8 5 19 9 26 9 20 29 MIN. QFE PRESSURE IN HPA 878.0 877.8 877.6 883.1 882.9 888.1 878.6 887.6 887.6 885.7 889.4 889.3 877.6 DAY 13 13 18 21 21 24 5 16 2 1 1 20 MEAN QNH PRESSURE IN HPA 1015.9 1017.0 1014.4 1015.0 1016.4 1015.4 1011.8 1014.9 1016.1 1020.3 1020.4 1022.0 1016.6 MAX. QNH PRESSURE IN HPA 1024.6 1032.0 1024.3 1024.2 1024.5 1020.2 1018.2 1018.9 1023.0 1030.7 1029.6 1030.0 1032.0 DAY 22 22 26 12 8 5 19 9 26 9 20 29 MIN. QNH PRESSURE IN HPA 1000.9 1000.7 1000.4 1006.6 1006.3 1012.1 1001.5 1011.6 1011.6 1009.4 1013.6 1013.4 1000.4 DAY 13 13 18 21 21 24 5 16 2 1 1 20 MEAN QFF PRESSURE IN HPA 1020.4 1021.0 1015.1 1012.1 1012.1 1008.3 1003.9 1007.2 1010.5 1017.8 1019.7 1023.4 1014.3 MAX. QFF PRESSURE IN HPA 1029.3 1037.5 1026.5 1021.5 1022.8 1013.4 1011.2 1011.5 1019.8 1032.3 1028.5 1032.8 1037.5 DAY 3 22 26 1 2 5 15 9 12 9 20 29 MIN. QFF PRESSURE IN HPA 1004.0 1005.4 995.6 1000.4 999.4 1003.1 992.3 1003.1 1002.9 1003.2 1010.9 1015.2 992.3 DAY 13 13 18 21 21 24 5 23 2 1 1 30 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 891.2 892.2 890.0 890.4 891.8 891.0 887.7 890.3 891.7 895.4 895.3 897.0 892.0 MAX. QFE PRESSURE IN HPA 899.2 906.0 898.8 899.5 898.7 895.2 893.5 893.3 897.3 904.6 903.8 903.6 906.0 DAY 3 22 26 11 8 5 19 18 12 9 20 11 MIN. QFE PRESSURE IN HPA 878.2 877.8 877.4 882.7 882.7 888.0 878.2 887.4 887.1 885.7 889.1 887.8 877.4 DAY 13 13 18 21 21 27 5 16 2 1 10 20 MEAN QNH PRESSURE IN HPA 1015.6 1016.6 1014.2 1014.7 1016.2 1015.3 1011.7 1014.6 1016.1 1020.2 1020.2 1022.0 1016.4 MAX. QNH PRESSURE IN HPA 1024.5 1032.0 1024.0 1024.8 1023.9 1020.0 1018.1 1017.9 1022.3 1030.5 1029.6 1029.3 1032.0 DAY 3 22 26 11 8 5 19 18 12 9 20 11 MIN. QNH PRESSURE IN HPA 1001.1 1000.7 1000.2 1006.1 1006.1 1012.0 1001.1 1011.3 1011.0 1009.4 1013.2 1011.8 1000.2 DAY 13 13 18 21 21 27 5 16 2 1 10 20 MEAN QFF PRESSURE IN HPA 1019.6 1020.2 1014.5 1011.4 1011.7 1008.0 1003.5 1006.5 1010.0 1017.1 1018.8 1022.8 1013.7 MAX. QFF PRESSURE IN HPA 1029.3 1038.0 1025.5 1021.3 1022.6 1013.1 1010.6 1010.5 1020.1 1031.8 1027.9 1030.8 1038.0 DAY 3 22 26 11 2 5 15 18 12 9 20 29 MIN. QFF PRESSURE IN HPA 1004.3 1005.1 996.3 1000.5 998.4 1003.0 991.1 1002.4 1001.4 1002.6 1009.9 1012.8 991.1 DAY 13 7 18 21 21 28 5 16 2 1 1 20 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.5 6.0 6.0 11.5 16.5 22.9 23.3 25.3 19.8 14.3 5.7 4.6 13.1 MINIMUN AIR TEMPERATURE (C) -2.5 0.0 1.1 5.4 9.7 15.5 17.1 17.3 12.9 6.7 2.3 0.1 7.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 1 1 0 0 0 0 2 DAYS WITH MINIMUM TEMP. <=-4 11 3 1 0 0 0 0 0 0 0 0 2 17 DAYS WITH FREEZING MIN.<= 0 22 17 12 0 0 0 0 0 0 0 9 15 75 TEMPERATURE RECORDS LOWEST(C) -13.0 -5.4 -8.2 0.2 4.4 12.4 12.0 13.2 4.8 0.8 -3.2 -5.0 -13.0 DAY 3 22 19 12 22 1 13 18 29 28 30 1 MAXIMUM AIR TEMPERATURE (C) 6.9 13.6 12.5 18.6 24.5 30.5 30.3 33.1 27.7 22.9 10.5 11.1 20.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 5 18 17 30 9 0 0 0 79 DAYS WITH MAXIMUM TEMP. <= 0 1 0 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS HIGHEST(C) 14.2 20.4 22.0 26.6 33.6 36.6 36.8 37.6 36.0 29.8 17.8 16.2 37.6 DAY 16 27 26 30 31 28 4 5 15 11 19 28 DIF. BETWEEN (MAX.-MIN.) (C) 9.4 13.6 11.4 13.2 14.8 15.0 13.2 15.8 14.8 16.2 8.2 11.0 13.1 MEAN DAILY TEMP. (MDT) (C) 2.2 6.8 6.8 12.0 17.1 23.0 23.7 25.2 20.3 14.8 6.4 5.6 13.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 5.1 62.7 93.7 130.0 29.1 0.0 0.0 0.0 320.6 HEATING DEG. DAYS(BASE 18 0C) 490.2 312.7 347.1 180.2 59.4 0.0 0.9 0.0 24.3 102.3 347.8 384.9 2249.7 DEWPOINT (MEAN C) -3.1 -2.1 0.1 4.0 7.2 9.4 11.0 7.7 7.9 4.1 1.9 -0.7 3.9 MIXING RATIO (G/KG) 3.57 3.80 4.47 5.87 7.35 8.56 9.53 7.93 7.99 5.96 4.99 4.10 6.18 VAPOUR PRESSURE (HPA) 5.10 5.41 6.35 8.33 10.39 12.05 13.39 11.17 11.28 8.48 7.12 5.87 8.75 SATURATION DEF. (HPA) 2.07 4.49 3.54 5.92 9.68 17.01 16.40 22.56 13.22 8.87 2.34 2.91 9.08 RELATIVE HUMIDITY (MEAN %) 74 61 70 65 59 46 50 37 51 56 79 71 60 RELATIVE HUMIDITY (MAX. %) 89 86 90 87 80 66 71 57 72 77 92 87 80 RELATIVE HUMIDITY (MIN. %) 54 37 48 42 38 28 30 21 31 34 60 50 39 RELATIVE HUMIDITY (MEAN% 03UTC) 86 81 86 81 74 61 66 53 70 76 89 83 76 RELATIVE HUMIDITY (MEAN% 09UTC) 61 47 57 52 47 35 36 25 37 43 69 58 47 RELATIVE HUMIDITY (MEAN% 15UTC) 71 51 63 54 48 34 41 26 40 45 74 68 51 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 28.6 18.2 39.1 33.7 33.0 0.0 48.7 10.0 4.2 8.2 64.6 2.8 291.1 DAYS WITH PRECIPITATION >=10 0 0 0 0 1 0 1 1 0 0 2 0 5 DAYS WITH PRECIPITATION >= 5 2 2 3 3 3 0 3 1 0 1 5 0 23 DAYS WITH PRECIPITATION >= 1 8 5 8 9 4 0 4 1 1 4 10 0 54 DAYS WITH PRECIPITATION 13 6 11 13 8 0 9 1 2 4 20 6 93 GREATEST DAILY PRECIPITATION 7.0 5.0 8.0 8.0 17.0 0.0 30.0 10.0 3.7 5.2 14.0 0.7 30.0 DAY 19 17 3 15 11 ** 27 9 28 25 2 3 DAY WITH THUNDER STORM 0 1 2 3 2 0 5 1 0 0 0 0 14 DAYS WITH SNOW OR SLEET 7 2 4 0 0 0 0 0 0 0 3 0 16 DAYS WITH DUST 0 0 0 0 0 0 1 2 1 1 0 0 5 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 10.5 12.9 12.2 12.6 14.0 13.2 13.2 10.2 12.5 10.4 9.0 11.1 12.2 PREVAILING WIND PERCENT 19.4 17.0 26.2 29.6 36.7 47.5 41.5 23.4 28.8 19.4 20.0 6.0 26.3 CALMS PERCENT OF WIND 71.4 64.3 61.7 60.4 52.8 34.2 32.7 47.2 58.3 74.2 65.8 81.5 58.7 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 270 224 268 283 280 282 287 308 285 282 274 261 279 VECTOR WIND MAGNITUDE(KNOTS) 1.7 2.8 3.1 3.1 5.0 6.5 6.7 3.5 4.7 2.6 2.5 0.6 3.4 WIND STEADINESES (MEAN %) 56.7 56.0 67.4 66.0 83.3 80.2 83.7 61.4 94.0 96.3 75.8 33.3 70.8 WIND SPEED (MEAN KNOTS) 3.0 5.0 4.6 4.7 6.0 8.1 8.0 5.7 5.0 2.7 3.3 1.8 4.8 FASTEST WIND DIRECTION 280 180 270 270 270 270 270 70 270 270 280 270 180 FASTEST WIND SPEED (KNOTS) 31 87 52 39 49 45 39 27 33 35 27 27 87 DAY 1 20 18 20 20 2 23 6 16 13 1 23 DAYS WITH SKY CLEAR (0-2)/8 13 13 13 10 21 23 18 28 26 25 11 16 217 DAYS WITH P.CLOUDY (3-6)/8 7 7 6 12 7 7 12 3 2 3 7 8 81 DAYS WITH CLOUDY (7-8)/8 11 8 12 8 3 0 1 0 2 3 12 7 67 DAYS WITH VISIBILITY =< 2 KM 4 1 4 1 0 0 1 0 0 1 2 2 16 DURATION OF SUNSHINE HOURS 154.1 186.8 201.3 219.6 296.3 341.7 321.2 359.6 283.6 262.1 139.5 173.9 2939.7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 893.9 890.5 890.8 891.7 891.2 888.5 887.6 889.0 891.0 893.7 894.4 896.8 891.6 MAX. QFE PRESSURE IN HPA 908.7 900.6 898.6 899.1 897.0 896.5 892.9 896.4 897.2 900.3 904.5 905.2 908.7 DAY-HOUR 2- 6 12- 6 18-18 23- 6 9- 6 16-18 19- 6 20- 6 5- 6 26- 6 30-18 1- 6 MIN. QFE PRESSURE IN HPA 884.5 876.0 882.9 882.8 883.0 877.5 883.2 884.6 883.6 888.5 885.9 887.0 876.0 DAY-HOUR 9-15 21- 0 21-12 14-12 14- 6 25-12 22-15 6-12 15-12 24-12 26-12 14-12 MEAN QNH PRESSURE IN HPA 1018.5 1014.7 1015.1 1016.1 1015.6 1012.5 1011.6 1013.1 1015.4 1018.4 1019.2 1021.8 1016.0 MAX. QNH PRESSURE IN HPA 1035.0 1026.0 1023.8 1024.3 1022.0 1021.5 1017.4 1021.3 1022.2 1025.7 1030.3 1031.1 1035.0 DAY-HOUR 2- 6 12- 6 18-18 23- 6 9- 6 16-18 19- 6 20- 6 5- 6 26- 6 30-18 1- 6 MIN. QNH PRESSURE IN HPA 1008.1 998.7 1006.3 1006.2 1006.4 1000.3 1006.7 1008.2 1007.1 1012.6 1009.7 1010.9 998.7 DAY-HOUR 9-15 21- 0 21-12 14-12 14- 6 25-12 22-15 6-12 15-12 24-12 26-12 14-12 MEAN QFF PRESSURE IN HPA 1021.6 1015.6 1015.9 1014.3 1011.4 1005.5 1004.3 1005.0 1009.6 1015.3 1020.1 1023.4 1013.5 MAX. QFF PRESSURE IN HPA 1042.3 1028.1 1029.8 1024.4 1020.3 1016.2 1011.6 1013.1 1019.4 1026.8 1034.9 1036.2 1042.3 DAY-HOUR 2- 6 12- 6 19- 3 23- 3 9- 6 17- 3 13- 6 20- 6 29- 3 26- 3 30-18 1- 3 MIN. QFF PRESSURE IN HPA 1007.1 995.2 1004.6 1001.4 999.2 992.4 998.4 999.1 998.8 1007.6 1007.8 1009.1 992.4 DAY-HOUR 9-15 21- 0 21-12 14-12 14- 6 25-12 22-15 6-12 16-12 18-12 25-12 14-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 893.6 890.0 890.4 891.6 891.2 888.6 887.8 888.9 891.1 893.7 894.3 896.8 891.5 MAX. QFE PRESSURE IN HPA 906.2 898.7 897.5 898.2 895.3 896.2 891.8 895.1 895.7 898.9 901.0 904.7 906.2 DAY 2 12 19 23 2 17 19 20 5 26 30 1 MIN. QFE PRESSURE IN HPA 886.4 876.0 884.0 883.4 886.1 878.8 883.7 885.7 886.2 889.8 887.5 888.5 876.0 DAY 10 21 22 14 20 25 22 7 13 13 26 16 MEAN QNH PRESSURE IN HPA 1018.3 1014.3 1014.7 1016.0 1015.6 1012.7 1011.7 1013.0 1015.5 1018.3 1019.0 1021.8 1015.9 MAX. QNH PRESSURE IN HPA 1032.2 1023.9 1022.6 1023.3 1020.1 1021.1 1016.2 1019.9 1020.6 1024.1 1026.5 1030.6 1032.2 DAY 2 12 19 23 2 17 19 20 5 26 30 1 MIN. QNH PRESSURE IN HPA 1010.2 998.7 1007.6 1006.9 1009.9 1001.8 1007.2 1009.4 1010.0 1014.0 1011.4 1012.6 998.7 DAY 10 21 22 14 20 25 22 7 13 13 26 16 MEAN QFF PRESSURE IN HPA 1021.0 1014.6 1015.2 1014.0 1011.4 1005.6 1004.3 1004.8 1009.5 1014.8 1019.6 1022.9 1013.1 MAX. QFF PRESSURE IN HPA 1039.0 1025.5 1028.3 1023.8 1019.0 1015.8 1011.5 1011.3 1019.0 1025.4 1030.9 1035.2 1039.0 DAY 2 12 19 23 9 17 28 20 24 26 30 1 MIN. QFF PRESSURE IN HPA 1008.8 995.2 1005.5 1002.6 1002.6 994.5 998.6 999.9 1001.6 1008.4 1009.4 1011.3 994.5 DAY 10 21 21 14 14 25 23 7 16 13 20 16 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 893.7 890.7 891.0 892.2 892.0 889.5 888.5 889.7 891.8 894.3 894.6 897.1 892.1 MAX. QFE PRESSURE IN HPA 907.3 899.3 898.0 898.7 896.5 896.5 892.6 896.1 896.5 899.3 901.3 904.8 907.3 DAY 2 12 19 23 2 17 19 20 5 26 30 1 MIN. QFE PRESSURE IN HPA 886.6 878.6 884.1 884.7 885.5 879.0 884.8 886.8 886.4 891.1 887.5 888.7 878.6 DAY 10 21 21 14 14 25 22 7 13 31 25 14 MEAN QNH PRESSURE IN HPA 1018.4 1015.0 1015.3 1016.7 1016.5 1013.7 1012.5 1013.9 1016.2 1019.0 1019.3 1022.2 1016.6 MAX. QNH PRESSURE IN HPA 1033.5 1024.6 1023.1 1023.9 1021.5 1021.5 1017.1 1021.0 1021.5 1024.6 1026.8 1030.7 1033.5 DAY 2 12 19 23 2 17 19 20 5 26 30 1 MIN. QNH PRESSURE IN HPA 1010.4 1001.5 1007.7 1008.3 1009.2 1002.0 1008.4 1010.7 1010.2 1015.4 1011.4 1012.8 1001.5 DAY 10 21 21 14 14 25 22 7 13 31 25 14 MEAN QFF PRESSURE IN HPA 1022.0 1016.6 1016.7 1015.4 1012.4 1006.8 1005.5 1006.2 1011.1 1016.7 1020.6 1024.6 1014.5 MAX. QFF PRESSURE IN HPA 1040.8 1027.8 1029.8 1024.4 1020.0 1016.2 1011.3 1012.9 1019.4 1026.8 1031.7 1036.2 1040.8 DAY 2 12 19 23 9 17 28 20 29 26 30 1 MIN. QFF PRESSURE IN HPA 1009.4 999.2 1005.8 1005.5 1002.2 994.5 1000.5 1001.8 1003.2 1011.2 1011.0 1012.6 994.5 DAY 10 21 21 14 14 25 22 6 16 13 26 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 894.7 891.8 891.8 892.7 892.1 889.6 888.7 890.0 892.2 895.0 895.2 898.0 892.6 MAX. QFE PRESSURE IN HPA 908.7 900.6 898.2 899.1 897.0 895.7 892.9 896.4 897.2 900.3 903.2 905.2 908.7 DAY 2 12 1 23 9 17 19 20 5 26 30 1 MIN. QFE PRESSURE IN HPA 886.8 882.0 884.0 885.5 883.0 879.4 885.5 887.1 887.0 890.8 887.0 889.5 879.4 DAY 9 20 21 14 14 25 22 13 16 31 26 14 MEAN QNH PRESSURE IN HPA 1019.5 1016.2 1016.2 1017.2 1016.5 1013.8 1012.8 1014.2 1016.7 1019.7 1020.0 1023.1 1017.2 MAX. QNH PRESSURE IN HPA 1035.0 1026.0 1023.3 1024.3 1022.0 1020.6 1017.4 1021.3 1022.2 1025.7 1028.9 1031.1 1035.0 DAY 2 12 1 23 9 17 19 20 5 26 30 1 MIN. QNH PRESSURE IN HPA 1010.7 1005.3 1007.6 1009.2 1006.4 1002.4 1009.2 1011.0 1010.9 1015.1 1010.9 1013.7 1002.4 DAY 9 20 21 14 14 25 22 13 16 31 26 14 MEAN QFF PRESSURE IN HPA 1022.8 1017.3 1017.2 1015.6 1012.5 1006.9 1005.6 1006.1 1011.1 1016.8 1021.1 1025.3 1014.9 MAX. QFF PRESSURE IN HPA 1042.3 1028.1 1028.3 1024.2 1020.3 1014.9 1011.6 1013.1 1018.9 1026.5 1033.2 1036.0 1042.3 DAY 2 12 19 23 9 17 13 20 29 26 30 1 MIN. QFF PRESSURE IN HPA 1010.5 1003.8 1005.6 1006.2 999.2 994.7 1001.3 1001.4 1003.3 1011.0 1010.7 1013.3 994.7 DAY 10 20 21 14 14 25 4 6 16 12 25 14 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 894.0 890.9 891.0 891.7 891.2 888.5 887.6 889.0 891.0 893.6 894.1 896.8 891.6 MAX. QFE PRESSURE IN HPA 907.7 898.9 898.1 897.6 895.5 894.9 891.3 894.8 895.7 899.4 902.4 904.7 907.7 DAY 2 11 1 22 28 16 18 20 5 26 30 24 MIN. QFE PRESSURE IN HPA 885.5 880.1 884.4 884.1 884.9 878.0 884.4 885.6 885.1 889.4 886.3 888.3 878.0 DAY 9 20 21 14 14 25 12 6 16 31 26 14 MEAN QNH PRESSURE IN HPA 1018.7 1015.2 1015.4 1016.1 1015.6 1012.6 1011.6 1013.1 1015.3 1018.3 1018.8 1021.8 1016.0 MAX. QNH PRESSURE IN HPA 1033.9 1024.1 1023.2 1022.7 1020.3 1019.7 1015.7 1019.6 1020.6 1024.7 1028.0 1030.6 1033.9 DAY 2 11 1 22 28 16 18 20 5 26 30 24 MIN. QNH PRESSURE IN HPA 1009.2 1003.2 1008.0 1007.7 1008.6 1000.9 1008.0 1009.3 1008.8 1013.6 1010.1 1012.3 1000.9 DAY 9 20 21 14 14 25 12 6 16 31 26 14 MEAN QFF PRESSURE IN HPA 1021.4 1015.6 1015.8 1014.0 1011.2 1005.3 1004.0 1004.8 1009.2 1014.7 1019.5 1023.1 1013.2 MAX. QFF PRESSURE IN HPA 1040.8 1025.2 1025.0 1022.1 1017.5 1013.3 1009.1 1011.5 1017.7 1024.6 1032.3 1033.9 1040.8 DAY 2 11 19 22 9 16 26 19 28 26 30 1 MIN. QFF PRESSURE IN HPA 1008.9 1001.6 1007.0 1003.3 1003.1 992.9 999.8 999.4 1000.7 1009.2 1008.0 1011.4 992.9 DAY 9 20 21 14 14 25 22 6 16 18 25 15 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 893.2 889.5 889.9 890.7 890.1 887.5 886.5 887.9 889.8 892.7 893.4 895.9 890.6 MAX. QFE PRESSURE IN HPA 906.2 898.1 896.7 897.3 894.4 894.2 890.2 893.5 895.1 898.6 902.7 904.3 906.2 DAY 2 11 1 22 23 16 18 20 28 26 30 24 MIN. QFE PRESSURE IN HPA 885.1 879.1 882.9 882.8 883.2 877.5 883.3 884.6 883.6 888.5 885.9 887.0 877.5 DAY 9 20 21 14 20 25 12 6 15 24 26 14 MEAN QNH PRESSURE IN HPA 1017.8 1013.7 1014.1 1015.0 1014.4 1011.4 1010.3 1011.9 1014.0 1017.2 1018.1 1020.7 1014.9 MAX. QNH PRESSURE IN HPA 1032.2 1023.2 1021.7 1022.3 1019.1 1018.9 1014.4 1018.1 1019.9 1023.8 1028.3 1030.1 1032.2 DAY 2 11 1 22 23 16 18 20 28 26 30 24 MIN. QNH PRESSURE IN HPA 1008.8 1002.1 1006.3 1006.2 1006.7 1000.3 1006.8 1008.2 1007.1 1012.6 1009.7 1010.9 1000.3 DAY 9 20 21 14 20 25 12 6 15 24 26 14 MEAN QFF PRESSURE IN HPA 1020.4 1014.0 1014.5 1012.9 1010.0 1004.3 1002.9 1003.8 1008.0 1013.8 1018.7 1021.7 1012.1 MAX. QFF PRESSURE IN HPA 1039.6 1024.5 1023.7 1021.8 1016.9 1012.7 1010.3 1010.0 1017.4 1024.1 1032.4 1032.2 1039.6 DAY 2 11 18 22 23 16 27 19 28 26 30 24 MIN. QFF PRESSURE IN HPA 1008.1 1000.7 1004.6 1001.4 1002.1 992.4 998.5 999.1 998.8 1007.6 1007.8 1009.1 992.4 DAY 9 20 21 14 20 25 4 6 16 18 25 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 893.6 889.9 890.3 891.0 890.2 887.2 886.6 888.0 890.0 893.1 894.1 896.2 890.9 MAX. QFE PRESSURE IN HPA 905.4 898.7 896.7 897.3 894.5 895.2 890.5 893.5 895.5 898.6 904.0 904.3 905.4 DAY 2 11 1 22 23 16 18 20 23 26 30 24 MIN. QFE PRESSURE IN HPA 884.5 878.5 883.2 883.8 884.4 877.8 883.2 884.9 884.1 889.1 886.8 887.8 877.8 DAY 9 20 21 8 20 25 22 14 15 18 25 15 MEAN QNH PRESSURE IN HPA 1018.3 1014.2 1014.6 1015.3 1014.4 1011.1 1010.4 1012.0 1014.2 1017.7 1018.8 1021.1 1015.2 MAX. QNH PRESSURE IN HPA 1031.3 1023.9 1021.7 1022.3 1019.2 1020.0 1014.8 1018.1 1020.3 1023.8 1029.8 1030.1 1031.3 DAY 2 11 1 22 23 16 18 20 23 26 30 24 MIN. QNH PRESSURE IN HPA 1008.1 1001.4 1006.7 1007.3 1008.0 1000.7 1006.7 1008.6 1007.7 1013.2 1010.7 1011.8 1000.7 DAY 9 20 21 8 20 25 22 14 15 18 25 15 MEAN QFF PRESSURE IN HPA 1021.9 1015.6 1015.8 1013.9 1010.3 1004.2 1003.3 1004.4 1009.1 1015.4 1020.2 1023.4 1013.1 MAX. QFF PRESSURE IN HPA 1039.9 1025.8 1025.9 1021.6 1017.4 1014.1 1009.7 1010.6 1017.8 1025.3 1034.8 1032.5 1039.9 DAY 2 11 18 22 11 16 27 19 28 26 30 5 MIN. QFF PRESSURE IN HPA 1007.1 999.8 1004.8 1005.5 1003.3 992.9 998.4 1000.2 1000.9 1009.4 1009.8 1012.0 992.9 DAY 9 20 21 13 18 25 22 6 15 18 25 15 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 894.1 890.7 891.2 892.1 891.5 888.4 887.9 889.3 891.2 893.9 895.0 896.8 891.8 MAX. QFE PRESSURE IN HPA 905.4 899.5 898.6 898.4 895.5 896.5 892.4 894.9 896.8 899.0 904.5 905.1 905.4 DAY 2 11 18 22 1 16 18 19 23 26 30 10 MIN. QFE PRESSURE IN HPA 885.3 878.1 884.6 883.6 886.2 879.7 884.0 885.7 885.9 889.5 887.7 888.2 878.1 DAY 9 20 20 8 19 24 22 6 15 18 25 15 MEAN QNH PRESSURE IN HPA 1018.8 1015.0 1015.6 1016.5 1015.9 1012.5 1011.8 1013.4 1015.5 1018.5 1019.7 1021.8 1016.3 MAX. QNH PRESSURE IN HPA 1031.3 1024.8 1023.8 1023.6 1020.3 1021.5 1016.9 1019.7 1021.8 1024.2 1030.3 1031.0 1031.3 DAY 2 11 18 22 1 16 18 19 23 26 30 10 MIN. QNH PRESSURE IN HPA 1009.0 1001.0 1008.2 1007.1 1010.0 1002.8 1007.6 1009.4 1009.7 1013.7 1011.7 1012.2 1001.0 DAY 9 20 20 8 19 24 22 6 15 18 25 15 MEAN QFF PRESSURE IN HPA 1022.2 1016.1 1016.5 1014.8 1011.8 1005.6 1004.6 1005.4 1009.9 1015.6 1021.0 1023.9 1014.0 MAX. QFF PRESSURE IN HPA 1039.9 1026.7 1029.1 1023.5 1018.9 1015.7 1009.8 1012.3 1019.0 1024.9 1034.9 1033.1 1039.9 DAY 2 11 18 22 11 16 27 19 23 26 30 24 MIN. QFF PRESSURE IN HPA 1007.7 997.9 1007.0 1005.3 1004.7 994.6 998.6 1000.2 1002.0 1008.7 1009.8 1011.4 994.6 DAY 9 20 21 8 18 25 22 6 15 18 19 14 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 893.9 890.3 890.9 891.8 891.4 888.4 887.8 889.1 891.2 893.8 894.9 896.6 891.7 MAX. QFE PRESSURE IN HPA 905.1 899.5 897.9 898.2 895.9 896.0 892.2 894.8 896.3 899.2 904.5 904.5 905.1 DAY 1 11 18 22 8 16 18 19 23 13 30 10 MIN. QFE PRESSURE IN HPA 885.3 876.7 884.4 883.5 885.8 879.0 884.3 885.8 886.3 890.6 887.7 888.0 876.7 DAY 9 20 21 13 19 24 22 6 12 18 25 15 MEAN QNH PRESSURE IN HPA 1018.6 1014.6 1015.3 1016.3 1015.8 1012.5 1011.7 1013.3 1015.6 1018.5 1019.7 1021.6 1016.1 MAX. QNH PRESSURE IN HPA 1031.0 1024.8 1023.0 1023.3 1020.8 1020.9 1016.7 1019.6 1021.2 1024.5 1030.3 1030.3 1031.0 DAY 1 11 18 22 8 16 18 19 23 13 30 10 MIN. QNH PRESSURE IN HPA 1009.0 999.4 1008.0 1007.0 1009.6 1002.0 1007.9 1009.6 1010.1 1014.9 1011.7 1012.0 999.4 DAY 9 20 21 13 19 24 22 6 12 18 25 15 MEAN QFF PRESSURE IN HPA 1021.4 1015.0 1015.7 1014.1 1011.4 1005.2 1004.1 1004.9 1009.5 1015.0 1020.5 1022.9 1013.3 MAX. QFF PRESSURE IN HPA 1038.6 1026.2 1028.3 1023.0 1019.2 1015.1 1009.1 1011.5 1019.0 1024.6 1034.9 1032.9 1038.6 DAY 2 11 18 22 8 16 27 19 23 25 30 5 MIN. QFF PRESSURE IN HPA 1007.1 996.1 1005.4 1003.5 1003.9 994.1 998.4 999.6 1002.5 1008.8 1008.6 1010.1 994.1 DAY 9 20 26 13 18 25 22 6 15 18 19 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.5 1.2 5.8 16.2 19.7 22.0 24.8 24.6 20.9 12.3 5.2 3.8 13.2 MINIMUN AIR TEMPERATURE (C) -3.1 -3.1 0.2 8.2 12.3 14.5 16.8 16.1 14.9 7.5 1.2 0.3 7.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 2 1 0 0 0 0 3 DAYS WITH MINIMUM TEMP. <=-4 13 10 1 0 0 0 0 0 0 0 1 3 28 DAYS WITH FREEZING MIN.<= 0 24 25 16 0 0 0 0 0 0 0 13 15 93 TEMPERATURE RECORDS LOWEST(C) -12.0 -13.8 -9.8 1.2 5.8 6.2 11.8 12.0 10.2 3.0 -4.2 -4.6 -13.8 DAY 11 1 16 3 11 14 26 11 27 19 11 30 MAXIMUM AIR TEMPERATURE (C) 7.0 7.0 12.7 24.0 27.1 29.2 32.2 32.7 27.4 18.2 10.7 9.0 19.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 3 6 15 26 28 7 0 0 0 85 DAYS WITH MAXIMUM TEMP. <= 0 3 1 0 0 0 0 0 0 0 0 0 0 4 TEMPERATURE RECORDS HIGHEST(C) 16.6 16.2 24.4 30.8 35.4 36.6 39.2 37.2 34.2 26.0 18.4 15.6 39.2 DAY 2 24 24 10 26 22 8 3 8 26 2 22 DIF. BETWEEN (MAX.-MIN.) (C) 10.1 10.1 12.5 15.8 14.8 14.7 15.4 16.6 12.5 10.7 9.5 8.7 12.6 MEAN DAILY TEMP. (MDT) (C) 2.0 1.9 6.5 16.1 19.7 21.8 24.5 24.4 21.2 12.8 6.0 4.7 13.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 2.5 18.9 57.5 109.0 105.3 33.7 0.0 0.0 0.0 326.9 HEATING DEG. DAYS(BASE 18 0C) 497.0 465.6 357.3 77.3 16.9 11.6 0.0 0.0 2.1 160.3 361.3 413.7 2363.1 DEWPOINT (MEAN C) -5.3 -2.9 -0.9 4.0 6.0 6.7 7.6 7.1 11.8 6.5 0.6 -0.1 3.4 MIXING RATIO (G/KG) 3.03 3.55 4.11 5.94 6.89 7.33 7.95 7.77 10.10 6.89 4.56 4.34 6.04 VAPOUR PRESSURE (HPA) 4.32 5.07 5.84 8.42 9.73 10.35 11.20 10.95 14.23 9.81 6.53 6.19 8.55 SATURATION DEF. (HPA) 2.99 1.91 4.13 11.26 14.37 17.73 21.49 21.50 11.37 4.95 2.69 2.05 9.70 RELATIVE HUMIDITY (MEAN %) 67 77 66 49 46 44 38 38 61 70 74 79 59 RELATIVE HUMIDITY (MAX. %) 84 92 87 73 69 66 60 60 82 89 89 92 79 RELATIVE HUMIDITY (MIN. %) 47 54 44 27 27 24 21 19 39 50 56 62 39 RELATIVE HUMIDITY (MEAN% 03UTC) 79 90 83 70 62 62 56 57 79 87 86 88 75 RELATIVE HUMIDITY (MEAN% 09UTC) 54 66 54 32 35 30 26 24 47 58 61 70 46 RELATIVE HUMIDITY (MEAN% 15UTC) 62 72 57 36 35 31 26 26 51 61 71 76 50 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 46.6 22.6 20.7 0.9 0.1 25.2 5.1 24.0 102.7 26.8 15.4 19.0 309.1 DAYS WITH PRECIPITATION >=10 1 0 1 0 0 1 0 2 2 1 1 0 9 DAYS WITH PRECIPITATION >= 5 3 2 2 0 0 1 1 2 2 1 1 1 16 DAYS WITH PRECIPITATION >= 1 7 5 4 0 0 1 1 2 3 6 4 5 38 DAYS WITH PRECIPITATION 12 8 9 4 3 3 2 2 5 8 7 6 69 GREATEST DAILY PRECIPITATION 19.3 6.0 10.0 0.3 0.1 25.0 5.0 14.0 54.3 12.5 11.6 5.0 54.3 DAY 29 15 3 21 10 13 9 7 11 5 6 2 DAY WITH THUNDER STORM 0 0 0 1 3 0 0 2 5 1 0 0 12 DAYS WITH SNOW OR SLEET 11 6 7 0 0 0 0 0 0 0 2 2 28 DAYS WITH DUST 0 0 0 1 1 1 1 2 1 0 0 0 7 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 12.7 12.2 12.7 12.3 15.8 15.3 13.1 12.7 12.9 10.8 11.8 9.4 13.1 PREVAILING WIND PERCENT 15.3 16.8 25.8 26.7 44.0 37.1 24.6 25.0 35.0 28.6 20.0 13.3 26.0 CALMS PERCENT OF WIND 62.9 71.6 60.1 62.1 46.0 43.8 50.4 62.1 59.6 67.3 77.1 75.8 61.5 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 231 281 275 273 277 284 311 292 279 280 279 241 279 VECTOR WIND MAGNITUDE(KNOTS) 2.3 2.3 3.2 3.6 6.8 5.7 3.4 3.1 4.6 3.2 2.4 0.9 3.3 WIND STEADINESES (MEAN %) 50.0 76.7 68.1 78.3 86.1 74.0 57.6 70.5 92.0 91.4 92.3 36.0 70.2 WIND SPEED (MEAN KNOTS) 4.6 3.0 4.7 4.6 7.9 7.7 5.9 4.4 5.0 3.5 2.6 2.5 4.7 FASTEST WIND DIRECTION 190 270 270 270 260 270 280 270 270 290 280 180 270 FASTEST WIND SPEED (KNOTS) 35 23 51 33 49 35 31 43 47 29 21 29 51 DAY 19 7 9 16 20 12 8 7 2 14 6 20 DAYS WITH SKY CLEAR (0-2)/8 14 14 12 13 24 24 29 28 21 17 11 13 220 DAYS WITH P.CLOUDY (3-6)/8 9 8 12 13 5 5 2 3 7 9 9 8 90 DAYS WITH CLOUDY (7-8)/8 8 7 7 4 2 1 0 0 2 5 10 10 56 DAYS WITH VISIBILITY =< 2 KM 4 5 4 0 0 0 0 1 1 2 2 5 24 DURATION OF SUNSHINE HOURS 177.0 177.8 204.1 262.1 325.0 343.2 368.3 356.9 262.7 222.7 161.9 130.2 2991.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 891.7 892.4 890.9 890.1 889.3 888.9 889.1 889.6 891.0 895.5 897.2 894.0 891.6 MAX. QFE PRESSURE IN HPA 900.3 903.0 901.2 897.1 897.4 895.6 894.6 895.5 896.8 901.3 908.3 902.7 908.3 DAY-HOUR 31- 6 29- 6 27- 3 2- 6 5- 3 16- 3 30- 6 23- 6 29- 6 15-21 17- 6 4- 6 MIN. QFE PRESSURE IN HPA 879.6 882.0 881.8 884.0 882.6 883.1 883.3 881.6 882.7 890.0 891.1 885.9 879.6 DAY-HOUR 21- 3 7- 0 24-21 21-15 26-15 26-12 8-15 3-15 1-12 1- 0 6-12 15-21 MEAN QNH PRESSURE IN HPA 1016.1 1016.9 1015.3 1014.3 1013.5 1013.0 1013.2 1013.7 1015.3 1020.4 1022.2 1018.7 1016.1 MAX. QNH PRESSURE IN HPA 1025.7 1028.7 1026.7 1022.1 1022.5 1020.5 1019.3 1020.3 1021.8 1026.8 1034.6 1028.3 1034.6 DAY-HOUR 31- 6 29- 6 27- 3 2- 6 5- 3 16- 3 30- 6 23- 6 29- 6 15-21 17- 6 4- 6 MIN. QNH PRESSURE IN HPA 1002.7 1005.3 1005.1 1007.6 1006.0 1006.6 1006.8 1004.9 1006.1 1014.2 1015.4 1009.7 1002.7 DAY-HOUR 21- 3 7- 0 24-21 21-15 26-15 26-12 8-15 3-15 1-12 1- 0 6-12 15-21 MEAN QFF PRESSURE IN HPA 1019.2 1020.2 1016.2 1010.4 1007.9 1006.4 1005.4 1006.1 1009.0 1018.1 1023.6 1020.6 1013.6 MAX. QFF PRESSURE IN HPA 1032.0 1032.0 1029.0 1022.0 1018.9 1017.7 1011.8 1012.5 1017.4 1027.0 1038.2 1029.9 1038.2 DAY-HOUR 31- 6 29- 6 27- 3 2- 3 5- 3 13-18 26- 6 23- 6 25-18 15-21 17- 3 4- 6 MIN. QFF PRESSURE IN HPA 1002.9 1006.5 1000.5 1000.3 997.7 999.5 997.7 996.2 997.5 1008.9 1014.7 1010.7 996.2 DAY-HOUR 21- 0 7- 0 24-21 10-12 27- 0 26-12 8-12 3-15 1-12 1- 0 6-12 21- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 891.8 892.0 890.7 890.1 889.5 889.0 889.1 889.7 890.9 895.4 897.2 894.1 891.6 MAX. QFE PRESSURE IN HPA 899.8 900.2 901.0 895.7 896.5 894.5 893.8 893.3 895.6 900.4 906.8 900.4 906.8 DAY 31 29 27 2 5 16 31 9 29 16 17 10 MIN. QFE PRESSURE IN HPA 880.0 882.0 881.9 886.1 883.1 884.9 883.6 884.5 885.1 890.0 891.8 885.9 880.0 DAY 21 7 25 22 27 6 11 31 1 1 22 16 MEAN QNH PRESSURE IN HPA 1016.2 1016.4 1015.0 1014.3 1013.7 1013.1 1013.2 1013.9 1015.3 1020.2 1022.2 1018.8 1016.0 MAX. QNH PRESSURE IN HPA 1025.1 1025.6 1026.5 1020.6 1021.5 1019.2 1018.4 1017.9 1020.5 1025.8 1032.9 1025.8 1032.9 DAY 31 29 27 2 5 16 31 9 29 16 17 10 MIN. QNH PRESSURE IN HPA 1003.1 1005.3 1005.2 1009.9 1006.6 1008.6 1007.1 1008.1 1008.8 1014.2 1016.2 1009.7 1003.1 DAY 21 7 25 22 27 6 11 31 1 1 22 16 MEAN QFF PRESSURE IN HPA 1018.7 1019.2 1015.7 1010.3 1008.1 1006.4 1005.3 1006.1 1008.5 1017.6 1023.2 1020.2 1013.3 MAX. QFF PRESSURE IN HPA 1030.9 1029.2 1028.1 1019.9 1017.1 1015.2 1010.6 1011.1 1015.6 1026.0 1036.5 1027.8 1036.5 DAY 31 11 16 3 5 16 26 9 26 16 17 10 MIN. QFF PRESSURE IN HPA 1002.9 1006.5 1001.2 1002.8 997.7 1001.2 998.8 998.9 999.1 1008.9 1016.1 1011.9 997.7 DAY 21 7 25 10 27 6 11 31 1 1 6 16 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 892.1 892.3 891.2 890.7 890.1 889.9 889.9 890.5 891.8 895.9 897.6 894.2 892.2 MAX. QFE PRESSURE IN HPA 900.0 901.5 901.2 896.4 897.4 895.6 894.3 894.9 896.0 900.7 907.3 901.0 907.3 DAY 31 29 27 2 5 16 30 23 29 16 17 4 MIN. QFE PRESSURE IN HPA 879.6 882.2 882.1 886.7 884.3 885.3 884.4 885.1 885.9 890.4 891.8 886.2 879.6 DAY 21 7 25 10 27 26 11 31 1 1 22 16 MEAN QNH PRESSURE IN HPA 1016.6 1016.8 1015.6 1015.0 1014.3 1014.1 1014.1 1014.8 1016.2 1020.8 1022.6 1018.9 1016.6 MAX. QNH PRESSURE IN HPA 1025.3 1027.0 1026.7 1021.3 1022.5 1020.5 1019.0 1019.7 1020.9 1026.1 1033.5 1026.5 1033.5 DAY 31 29 27 2 5 16 30 23 29 16 17 4 MIN. QNH PRESSURE IN HPA 1002.7 1005.6 1005.4 1010.6 1007.9 1009.0 1008.0 1008.8 1009.7 1014.7 1016.2 1010.0 1002.7 DAY 21 7 25 10 27 26 11 31 1 1 22 16 MEAN QFF PRESSURE IN HPA 1020.2 1020.6 1017.1 1011.6 1009.2 1007.6 1006.4 1007.5 1010.4 1019.1 1024.5 1021.3 1014.6 MAX. QFF PRESSURE IN HPA 1031.2 1031.0 1029.0 1022.0 1018.9 1016.6 1011.8 1012.3 1016.8 1026.6 1038.2 1028.4 1038.2 DAY 15 11 27 2 5 16 26 23 26 16 17 5 MIN. QFF PRESSURE IN HPA 1003.4 1008.0 1002.5 1003.6 999.6 1002.0 999.1 1000.7 1001.2 1011.1 1015.7 1012.4 999.1 DAY 21 7 25 10 27 6 11 31 1 1 6 16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 893.0 893.3 892.0 891.0 890.2 890.0 890.0 890.8 892.2 896.6 898.2 895.1 892.7 MAX. QFE PRESSURE IN HPA 900.3 903.0 901.2 897.1 896.8 895.6 894.6 895.5 896.8 900.9 908.3 902.7 908.3 DAY 31 29 27 2 5 16 30 23 29 16 17 4 MIN. QFE PRESSURE IN HPA 880.9 883.4 884.5 885.8 884.7 884.7 885.3 885.1 885.6 891.8 892.6 888.0 880.9 DAY 21 7 25 10 27 26 11 3 1 1 22 15 MEAN QNH PRESSURE IN HPA 1017.5 1017.9 1016.4 1015.4 1014.4 1014.2 1014.2 1015.1 1016.7 1021.6 1023.4 1019.8 1017.2 MAX. QNH PRESSURE IN HPA 1025.7 1028.7 1026.7 1022.1 1021.8 1020.5 1019.3 1020.3 1021.8 1026.3 1034.6 1028.3 1034.6 DAY 31 29 27 2 5 16 30 23 29 16 17 4 MIN. QNH PRESSURE IN HPA 1004.1 1006.9 1008.1 1009.6 1008.3 1008.3 1009.0 1008.8 1009.3 1016.2 1017.1 1012.0 1004.1 DAY 21 7 25 10 27 26 11 3 1 1 22 15 MEAN QFF PRESSURE IN HPA 1020.9 1021.6 1017.7 1011.6 1009.0 1007.7 1006.4 1007.4 1010.5 1019.6 1024.8 1022.1 1014.9 MAX. QFF PRESSURE IN HPA 1032.0 1032.0 1028.0 1021.7 1017.7 1016.4 1011.8 1012.5 1016.9 1026.6 1038.1 1029.9 1038.1 DAY 31 29 27 2 5 13 26 23 29 16 17 4 MIN. QFF PRESSURE IN HPA 1004.2 1009.4 1005.7 1002.6 1000.4 1001.9 1000.4 999.9 1000.7 1012.3 1016.0 1011.6 999.9 DAY 21 7 25 10 27 8 11 3 1 1 6 21 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 891.8 892.8 891.2 890.1 889.0 889.0 889.1 889.7 891.1 895.6 897.2 894.0 891.7 MAX. QFE PRESSURE IN HPA 899.3 903.0 898.7 895.8 895.3 894.4 893.8 893.9 896.0 899.3 906.5 901.7 906.5 DAY 31 29 27 2 5 16 30 8 29 30 17 4 MIN. QFE PRESSURE IN HPA 880.3 883.8 885.3 885.8 884.1 883.6 884.9 884.3 884.0 891.9 892.0 887.1 880.3 DAY 21 7 9 10 20 26 8 3 1 12 6 15 MEAN QNH PRESSURE IN HPA 1016.3 1017.4 1015.5 1014.3 1013.1 1013.1 1013.2 1013.9 1015.4 1020.4 1022.2 1018.7 1016.1 MAX. QNH PRESSURE IN HPA 1024.6 1028.7 1023.9 1020.7 1020.1 1019.1 1018.4 1018.6 1020.9 1024.6 1032.6 1027.2 1032.6 DAY 31 29 27 2 5 16 30 8 29 30 17 4 MIN. QNH PRESSURE IN HPA 1003.4 1007.3 1009.0 1009.6 1007.7 1007.1 1008.6 1007.9 1007.6 1016.3 1016.4 1011.0 1003.4 DAY 21 7 9 10 20 26 8 3 1 12 6 15 MEAN QFF PRESSURE IN HPA 1018.9 1020.4 1016.1 1010.0 1007.2 1006.4 1005.2 1006.0 1008.8 1017.9 1023.1 1020.3 1013.3 MAX. QFF PRESSURE IN HPA 1030.4 1032.0 1025.4 1019.6 1015.0 1016.9 1010.2 1011.9 1016.2 1023.3 1035.9 1028.1 1035.9 DAY 31 29 16 2 5 13 26 8 25 16 17 4 MIN. QFF PRESSURE IN HPA 1003.2 1009.2 1007.1 1002.5 1000.5 1000.1 998.8 998.8 998.4 1012.0 1015.5 1010.7 998.4 DAY 21 7 24 10 26 26 8 31 1 12 6 21 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 890.8 891.8 890.0 889.0 887.9 887.8 888.1 888.4 889.9 894.7 896.2 892.9 890.6 MAX. QFE PRESSURE IN HPA 897.7 901.8 896.2 895.0 893.2 893.1 893.4 892.6 895.3 898.0 905.4 901.0 905.4 DAY 14 29 27 2 5 13 30 8 25 5 17 4 MIN. QFE PRESSURE IN HPA 880.1 884.1 883.4 884.2 883.2 883.1 883.6 881.9 882.7 890.8 891.1 886.0 880.1 DAY 21 7 24 21 26 26 8 3 1 11 6 15 MEAN QNH PRESSURE IN HPA 1015.2 1016.2 1014.2 1013.2 1011.9 1011.7 1012.1 1012.5 1014.2 1019.4 1021.2 1017.5 1014.9 MAX. QNH PRESSURE IN HPA 1022.8 1027.3 1021.1 1019.8 1017.8 1017.7 1018.0 1017.1 1020.1 1023.1 1031.3 1026.5 1031.3 DAY 14 29 27 2 5 13 30 8 25 5 17 4 MIN. QNH PRESSURE IN HPA 1003.2 1007.7 1006.9 1007.8 1006.7 1006.6 1007.1 1005.2 1006.1 1015.1 1015.4 1009.8 1003.2 DAY 21 7 24 21 26 26 8 3 1 11 6 15 MEAN QFF PRESSURE IN HPA 1017.8 1018.9 1014.7 1009.1 1006.2 1005.1 1004.4 1004.7 1007.5 1016.8 1022.1 1018.8 1012.2 MAX. QFF PRESSURE IN HPA 1027.8 1030.2 1023.7 1019.0 1013.8 1015.8 1009.9 1010.5 1015.6 1022.5 1034.3 1027.1 1034.3 DAY 31 29 16 2 11 13 30 8 25 15 17 4 MIN. QFF PRESSURE IN HPA 1003.2 1010.2 1003.3 1000.3 998.4 999.5 997.7 996.5 997.5 1010.8 1014.7 1010.9 996.5 DAY 21 7 24 10 26 26 8 3 1 11 6 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 891.2 892.1 890.3 889.2 888.2 887.7 888.0 888.4 890.0 894.9 896.8 893.5 890.9 MAX. QFE PRESSURE IN HPA 898.9 901.1 897.1 894.8 893.2 893.8 893.8 893.1 895.2 899.8 904.7 901.0 904.7 DAY 24 29 26 2 4 13 30 8 25 15 17 4 MIN. QFE PRESSURE IN HPA 880.9 885.3 883.2 884.0 882.6 883.8 883.3 881.6 882.7 891.2 891.1 886.0 880.9 DAY 21 6 24 21 26 8 8 3 1 10 6 15 MEAN QNH PRESSURE IN HPA 1015.5 1016.6 1014.5 1013.3 1012.3 1011.7 1012.0 1012.4 1014.3 1019.7 1021.8 1018.2 1015.2 MAX. QNH PRESSURE IN HPA 1024.1 1026.6 1022.1 1019.6 1017.8 1018.4 1018.4 1017.7 1020.0 1025.1 1030.6 1026.5 1030.6 DAY 24 29 26 2 4 13 30 8 25 15 17 4 MIN. QNH PRESSURE IN HPA 1004.1 1009.0 1006.7 1007.6 1006.0 1007.3 1006.8 1004.9 1006.1 1015.6 1015.4 1009.8 1004.1 DAY 21 6 24 21 26 8 8 3 1 10 6 15 MEAN QFF PRESSURE IN HPA 1019.2 1020.2 1015.9 1009.8 1007.0 1005.3 1004.5 1005.1 1008.5 1018.0 1023.6 1020.5 1013.1 MAX. QFF PRESSURE IN HPA 1029.5 1030.4 1025.4 1019.9 1014.0 1017.3 1010.7 1011.1 1016.1 1025.2 1035.1 1028.2 1035.1 DAY 24 10 15 2 4 13 30 8 25 15 17 4 MIN. QFF PRESSURE IN HPA 1005.3 1012.8 1003.4 1001.0 997.9 999.6 998.1 996.2 998.1 1012.4 1015.0 1012.3 996.2 DAY 21 6 24 10 26 8 8 3 1 12 6 21 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 891.7 892.7 891.3 890.4 889.9 889.1 889.3 889.6 891.1 895.6 897.4 894.1 891.9 MAX. QFE PRESSURE IN HPA 899.5 901.1 900.5 896.5 895.7 894.3 894.5 893.8 896.1 901.0 906.0 901.4 906.0 DAY 24 29 26 1 4 13 30 8 25 15 16 4 MIN. QFE PRESSURE IN HPA 882.0 884.7 883.2 886.6 883.9 884.9 884.3 884.0 884.4 891.3 892.0 886.1 882.0 DAY 21 6 24 10 26 5 10 3 1 17 21 15 MEAN QNH PRESSURE IN HPA 1016.1 1017.2 1015.7 1014.6 1014.1 1013.2 1013.5 1013.8 1015.5 1020.5 1022.5 1018.8 1016.3 MAX. QNH PRESSURE IN HPA 1024.8 1026.6 1025.9 1021.5 1020.6 1019.0 1019.2 1018.4 1021.0 1026.5 1032.0 1026.9 1032.0 DAY 24 29 26 1 4 13 30 8 25 15 16 4 MIN. QNH PRESSURE IN HPA 1005.3 1008.3 1006.7 1010.4 1007.4 1008.6 1007.9 1007.6 1008.0 1015.7 1016.4 1009.9 1005.3 DAY 21 6 24 10 26 5 10 3 1 17 21 15 MEAN QFF PRESSURE IN HPA 1019.5 1020.8 1016.9 1010.7 1008.7 1006.8 1005.7 1006.1 1009.3 1018.5 1024.0 1021.0 1014.0 MAX. QFF PRESSURE IN HPA 1030.2 1029.7 1027.8 1020.7 1016.0 1017.7 1010.7 1011.9 1017.4 1026.7 1035.1 1029.4 1035.1 DAY 14 10 15 1 10 13 25 8 25 15 16 4 MIN. QFF PRESSURE IN HPA 1005.6 1011.4 1002.5 1003.7 999.0 1001.4 999.1 998.0 999.7 1012.9 1016.7 1012.2 998.0 DAY 21 6 24 10 26 5 8 3 1 11 6 11 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 891.6 892.5 891.0 890.3 889.9 889.0 889.2 889.6 891.1 895.6 897.3 894.1 891.8 MAX. QFE PRESSURE IN HPA 899.4 900.5 900.8 896.2 897.0 894.5 894.1 894.7 895.7 901.3 906.3 900.9 906.3 DAY 14 29 26 1 4 15 30 7 25 15 16 9 MIN. QFE PRESSURE IN HPA 881.1 883.6 881.8 886.8 883.4 884.9 884.0 884.0 884.1 891.1 892.0 885.9 881.1 DAY 20 6 24 29 26 5 10 3 1 17 21 15 MEAN QNH PRESSURE IN HPA 1016.0 1017.0 1015.3 1014.6 1014.1 1013.1 1013.3 1013.8 1015.4 1020.5 1022.3 1018.8 1016.2 MAX. QNH PRESSURE IN HPA 1024.7 1025.9 1026.2 1021.1 1022.0 1019.2 1018.8 1019.4 1020.6 1026.8 1032.3 1026.3 1032.3 DAY 14 29 26 1 4 15 30 7 25 15 16 9 MIN. QNH PRESSURE IN HPA 1004.3 1007.1 1005.1 1010.7 1006.9 1008.6 1007.6 1007.6 1007.7 1015.4 1016.4 1009.7 1004.3 DAY 20 6 24 29 26 5 10 3 1 17 21 15 MEAN QFF PRESSURE IN HPA 1018.7 1019.9 1015.8 1010.1 1008.2 1006.3 1005.3 1005.8 1008.8 1018.0 1023.3 1020.5 1013.4 MAX. QFF PRESSURE IN HPA 1030.5 1029.2 1027.9 1019.9 1016.7 1016.3 1010.8 1011.7 1016.7 1027.0 1035.7 1027.9 1035.7 DAY 14 10 15 1 4 13 25 8 25 15 16 9 MIN. QFF PRESSURE IN HPA 1004.1 1008.7 1000.5 1003.8 998.0 1000.5 999.3 997.8 998.9 1012.0 1016.6 1012.3 997.8 DAY 20 6 24 10 26 5 10 3 1 11 5 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.4 3.5 7.9 14.4 19.7 22.7 24.4 24.6 20.4 13.7 8.5 5.3 13.8 MINIMUN AIR TEMPERATURE (C) -3.3 -1.7 2.2 8.2 13.2 15.9 17.8 17.6 13.2 8.4 4.1 1.3 8.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 3 3 0 0 0 0 6 DAYS WITH MINIMUM TEMP. <=-4 11 8 3 0 0 0 0 0 0 0 0 3 25 DAYS WITH FREEZING MIN.<= 0 26 21 9 0 0 0 0 0 0 0 2 11 69 TEMPERATURE RECORDS LOWEST(C) -11.6 -7.6 -8.0 3.6 9.6 9.8 12.8 12.8 5.6 1.8 -1.6 -7.2 -11.6 DAY 29 1 12 19 1 2 30 14 20 12 20 22 MAXIMUM AIR TEMPERATURE (C) 6.0 10.4 15.8 22.4 27.8 30.2 31.8 31.9 28.3 20.6 15.2 11.4 21.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 11 17 23 24 12 1 0 0 90 DAYS WITH MAXIMUM TEMP. <= 0 5 0 1 0 0 0 0 0 0 0 0 0 6 TEMPERATURE RECORDS HIGHEST(C) 13.4 17.4 23.2 31.8 37.4 37.4 38.4 37.0 34.2 30.2 24.4 20.6 38.4 DAY 11 28 24 6 15 26 9 30 8 6 7 30 DIF. BETWEEN (MAX.-MIN.) (C) 9.3 12.1 13.6 14.2 14.6 14.3 14.0 14.3 15.1 12.2 11.1 10.1 12.9 MEAN DAILY TEMP. (MDT) (C) 1.4 4.3 9.0 15.3 20.5 23.0 24.8 24.8 20.7 14.5 9.7 6.3 14.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.4 26.8 71.8 119.1 116.6 33.3 0.4 0.0 0.0 368.4 HEATING DEG. DAYS(BASE 18 0C) 515.2 382.2 279.4 89.7 9.9 1.6 0.0 0.0 14.1 113.8 249.7 361.4 2017.0 DEWPOINT (MEAN C) -3.7 -4.1 0.3 6.0 7.1 8.4 9.2 10.2 5.1 4.9 1.4 0.2 3.7 MIXING RATIO (G/KG) 3.34 3.28 4.55 6.74 7.42 8.25 8.73 9.34 6.77 6.44 4.98 4.43 6.19 VAPOUR PRESSURE (HPA) 4.78 4.67 6.46 9.54 10.47 11.61 12.27 13.15 9.58 9.15 7.10 6.32 8.76 SATURATION DEF. (HPA) 1.84 3.62 5.20 7.91 13.79 17.34 19.49 19.06 15.78 7.32 4.53 2.98 9.91 RELATIVE HUMIDITY (MEAN %) 76 64 65 62 51 46 44 45 41 61 67 74 58 RELATIVE HUMIDITY (MAX. %) 90 86 86 85 75 68 65 68 67 82 85 89 79 RELATIVE HUMIDITY (MIN. %) 54 40 41 38 30 27 23 26 22 38 46 54 37 RELATIVE HUMIDITY (MEAN% 03UTC) 88 80 81 80 69 61 64 63 57 78 80 85 74 RELATIVE HUMIDITY (MEAN% 09UTC) 62 52 49 46 36 34 28 32 29 47 52 61 44 RELATIVE HUMIDITY (MEAN% 15UTC) 72 57 61 53 39 34 32 33 31 51 60 68 49 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 6.0 25.2 17.6 13.6 16.4 0.0 4.1 5.4 0.0 18.2 21.9 10.1 138.5 DAYS WITH PRECIPITATION >=10 0 1 0 0 1 0 0 0 0 0 0 0 2 DAYS WITH PRECIPITATION >= 5 0 2 1 1 1 0 0 1 0 0 2 0 8 DAYS WITH PRECIPITATION >= 1 2 3 5 4 3 0 2 1 0 6 4 5 35 DAYS WITH PRECIPITATION 9 6 10 7 9 0 2 5 0 12 6 9 75 GREATEST DAILY PRECIPITATION 2.1 13.0 6.8 6.0 10.0 0.0 3.1 5.0 0.0 4.1 9.3 3.4 13.0 DAY 28 5 26 17 23 ** 18 10 ** 19 19 2 DAY WITH THUNDER STORM 0 0 1 3 7 0 3 3 0 6 0 0 23 DAYS WITH SNOW OR SLEET 8 5 3 0 0 0 0 0 0 0 1 1 18 DAYS WITH DUST 1 1 0 2 3 2 0 3 4 3 1 0 20 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 10.5 11.4 16.1 15.1 13.8 15.1 12.8 13.0 11.9 11.6 10.5 11.0 13.2 PREVAILING WIND PERCENT 24.6 17.0 27.4 36.7 42.7 52.5 43.5 42.7 32.1 32.3 16.7 8.5 31.5 CALMS PERCENT OF WIND 69.8 70.1 60.1 54.6 40.7 30.0 33.1 47.2 58.3 61.7 75.4 79.0 56.6 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 278 239 269 275 268 280 292 279 283 278 251 195 275 VECTOR WIND MAGNITUDE(KNOTS) 2.8 2.2 4.4 5.7 5.9 8.1 5.7 5.9 4.0 3.8 1.7 0.9 4.1 WIND STEADINESES (MEAN %) 90.3 56.4 78.6 89.1 75.6 84.4 70.4 92.2 85.1 88.4 63.0 34.6 75.9 WIND SPEED (MEAN KNOTS) 3.1 3.9 5.6 6.4 7.8 9.6 8.1 6.4 4.7 4.3 2.7 2.6 5.4 FASTEST WIND DIRECTION 280 280 270 282 270 270 270 270 270 270 270 180 280 FASTEST WIND SPEED (KNOTS) 25 78 51 52 35 31 29 31 29 51 31 39 78 DAY 28 21 3 14 6 9 3 27 1 1 7 20 DAYS WITH SKY CLEAR (0-2)/8 11 15 14 12 15 20 24 25 26 20 7 7 196 DAYS WITH P.CLOUDY (3-6)/8 9 6 9 11 11 8 7 6 4 7 13 12 103 DAYS WITH CLOUDY (7-8)/8 11 7 8 7 5 2 0 0 0 4 10 12 66 DAYS WITH VISIBILITY =< 2 KM 3 2 2 0 1 0 0 0 0 0 2 6 16 DURATION OF SUNSHINE HOURS 143.7 179.0 196.3 237.6 274.1 305.5 320.3 320.3 264.7 230.8 156.3 121.1 2749.7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 895.7 891.8 891.3 890.5 888.8 888.1 888.2 889.8 891.6 894.3 893.5 894.5 891.5 MAX. QFE PRESSURE IN HPA 901.0 905.0 902.0 902.1 895.8 895.5 893.3 896.3 899.2 903.1 900.3 901.3 905.0 DAY-HOUR 26- 6 9- 9 1-18 1-18 18-18 2- 3 29- 6 5- 3 22- 6 10- 6 2- 6 10- 6 MIN. QFE PRESSURE IN HPA 890.3 872.8 880.0 881.3 879.9 878.9 882.2 881.7 885.6 886.9 882.3 885.6 872.8 DAY-HOUR 18-12 21-15 25-12 12-18 9-12 6-15 10-12 31-12 8-12 25- 0 17-12 5-12 MEAN QNH PRESSURE IN HPA 1020.5 1016.2 1015.6 1014.8 1012.9 1012.1 1012.3 1014.0 1016.0 1019.0 1018.1 1019.2 1015.9 MAX. QNH PRESSURE IN HPA 1026.5 1030.9 1027.6 1027.7 1020.7 1020.3 1017.9 1021.2 1024.5 1028.8 1025.7 1026.8 1030.9 DAY-HOUR 26- 6 9- 9 1-18 1-18 18-18 2- 3 29- 6 5- 3 22- 6 10- 6 2- 6 10- 6 MIN. QNH PRESSURE IN HPA 1014.6 995.1 1003.1 1004.5 1003.0 1001.9 1005.6 1005.0 1009.3 1010.8 1005.7 1009.3 995.1 DAY-HOUR 18-12 21-15 25-12 12-18 9-12 6-15 10-12 31-12 8-12 25- 0 17-12 5-12 MEAN QFF PRESSURE IN HPA 1024.2 1018.4 1015.5 1011.6 1007.3 1005.2 1004.6 1006.2 1010.1 1016.1 1017.7 1020.5 1013.1 MAX. QFF PRESSURE IN HPA 1032.2 1034.9 1031.0 1027.9 1017.8 1016.8 1010.2 1013.3 1021.8 1028.6 1029.3 1030.8 1034.9 DAY-HOUR 25-21 9-18 11- 9 1-18 18-18 2- 3 29- 3 12- 3 22- 6 27- 9 20- 6 21-18 MIN. QFF PRESSURE IN HPA 1015.8 993.5 999.0 998.5 997.0 992.9 995.7 996.4 1000.8 1005.9 1002.7 1007.0 992.9 DAY-HOUR 1- 0 21-12 25-12 12-21 9-12 6-15 10-12 30-12 5- 0 25- 0 17-15 20-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 895.6 891.4 891.1 890.6 888.9 888.2 888.5 890.0 891.5 894.3 893.2 894.4 891.5 MAX. QFE PRESSURE IN HPA 900.2 903.7 901.0 900.2 894.3 895.2 891.4 895.0 897.6 902.2 898.7 900.5 903.7 DAY 26 10 2 2 19 2 29 5 20 11 20 10 MIN. QFE PRESSURE IN HPA 890.6 879.0 881.9 883.0 881.4 880.5 882.9 883.6 885.9 886.9 883.6 888.1 879.0 DAY 1 22 25 13 9 7 19 31 5 25 18 6 MEAN QNH PRESSURE IN HPA 1020.4 1015.7 1015.5 1014.9 1013.0 1012.2 1012.5 1014.2 1015.9 1019.0 1017.8 1019.1 1015.9 MAX. QNH PRESSURE IN HPA 1025.6 1029.5 1026.5 1025.6 1019.0 1020.0 1015.8 1019.8 1022.7 1027.8 1023.9 1025.9 1029.5 DAY 26 10 2 2 19 2 29 5 20 11 20 10 MIN. QNH PRESSURE IN HPA 1014.9 1002.0 1005.2 1006.4 1004.7 1003.7 1006.3 1007.1 1009.7 1010.8 1007.1 1012.1 1002.0 DAY 1 22 25 13 9 7 19 31 5 25 18 6 MEAN QFF PRESSURE IN HPA 1023.5 1017.5 1014.9 1011.5 1007.3 1005.2 1004.7 1006.2 1009.7 1015.6 1017.0 1019.8 1012.7 MAX. QFF PRESSURE IN HPA 1031.3 1033.7 1028.6 1024.8 1016.3 1016.4 1009.6 1012.0 1020.6 1026.5 1027.4 1029.9 1033.7 DAY 26 10 12 2 19 2 29 14 20 28 20 22 MIN. QFF PRESSURE IN HPA 1015.8 1000.3 1000.9 1001.2 999.0 994.5 997.4 997.9 1000.8 1005.9 1003.7 1010.0 994.5 DAY 1 21 25 13 9 7 10 31 5 25 18 20 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 895.8 891.8 891.6 891.2 889.7 889.0 889.2 890.7 892.1 894.6 893.6 894.6 892.0 MAX. QFE PRESSURE IN HPA 900.2 903.6 901.0 900.0 894.8 895.5 892.4 896.3 898.4 902.1 899.4 900.7 903.6 DAY 26 10 2 1 18 2 29 5 22 10 20 10 MIN. QFE PRESSURE IN HPA 891.3 878.2 882.2 885.0 881.9 881.5 883.8 883.9 886.5 887.4 883.6 887.4 878.2 DAY 1 21 25 13 9 7 19 31 5 25 18 5 MEAN QNH PRESSURE IN HPA 1020.6 1016.3 1016.0 1015.5 1013.9 1013.2 1013.4 1015.0 1016.6 1019.3 1018.2 1019.4 1016.5 MAX. QNH PRESSURE IN HPA 1025.6 1029.3 1026.5 1025.3 1019.6 1020.3 1016.9 1021.2 1023.6 1027.7 1024.7 1026.1 1029.3 DAY 26 10 2 1 18 2 29 5 22 10 20 10 MIN. QNH PRESSURE IN HPA 1015.7 1001.1 1005.6 1008.7 1005.2 1004.8 1007.3 1007.4 1010.3 1011.3 1007.1 1011.3 1001.1 DAY 1 21 25 13 9 7 19 31 5 25 18 5 MEAN QFF PRESSURE IN HPA 1024.8 1019.1 1016.6 1012.9 1008.6 1006.3 1006.0 1007.6 1011.5 1017.1 1018.3 1021.1 1014.2 MAX. QFF PRESSURE IN HPA 1031.9 1034.4 1029.8 1025.8 1016.9 1016.8 1010.2 1013.3 1021.7 1027.3 1028.8 1029.4 1034.4 DAY 29 10 11 1 19 2 29 12 22 27 20 22 MIN. QFF PRESSURE IN HPA 1018.2 1000.2 1002.6 1004.9 1000.4 995.8 999.0 999.7 1002.9 1007.5 1004.7 1010.2 995.8 DAY 5 21 25 13 9 7 10 31 5 25 18 20 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 896.6 892.9 892.2 891.6 889.9 889.1 889.3 890.9 892.8 895.3 894.3 895.6 892.5 MAX. QFE PRESSURE IN HPA 901.0 904.5 901.0 901.5 895.3 895.5 893.3 896.3 899.2 903.1 900.3 901.3 904.5 DAY 26 10 2 1 18 2 29 5 22 10 2 10 MIN. QFE PRESSURE IN HPA 892.3 877.6 882.5 886.8 881.9 881.6 884.3 883.6 887.6 889.1 883.8 887.8 877.6 DAY 4 21 25 13 9 18 19 27 8 25 18 5 MEAN QNH PRESSURE IN HPA 1021.5 1017.4 1016.7 1016.0 1014.2 1013.2 1013.4 1015.2 1017.3 1020.1 1019.1 1020.4 1017.0 MAX. QNH PRESSURE IN HPA 1026.5 1030.3 1026.5 1027.0 1020.1 1020.3 1017.9 1021.2 1024.5 1028.8 1025.7 1026.8 1030.3 DAY 26 10 2 1 18 2 29 5 22 10 2 10 MIN. QNH PRESSURE IN HPA 1016.8 1000.4 1005.9 1010.7 1005.2 1004.9 1007.9 1007.1 1011.6 1013.2 1007.3 1011.8 1000.4 DAY 4 21 25 13 9 18 19 27 8 25 18 5 MEAN QFF PRESSURE IN HPA 1025.6 1019.9 1016.9 1013.0 1008.8 1006.3 1005.8 1007.4 1011.6 1017.4 1019.0 1022.1 1014.5 MAX. QFF PRESSURE IN HPA 1032.1 1034.9 1030.6 1027.2 1016.9 1015.6 1010.1 1012.9 1021.8 1028.4 1029.3 1030.4 1034.9 DAY 29 10 11 1 18 11 29 12 22 27 20 22 MIN. QFF PRESSURE IN HPA 1018.3 998.1 1001.6 1005.8 999.7 996.1 998.9 998.7 1003.5 1009.0 1003.2 1010.5 996.1 DAY 4 21 24 26 9 18 10 31 8 25 18 20 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 895.8 892.2 891.4 890.5 888.7 888.1 888.1 889.9 891.8 894.2 893.4 894.5 891.5 MAX. QFE PRESSURE IN HPA 900.7 905.0 900.4 901.5 894.7 894.0 891.8 895.4 897.9 902.7 899.8 900.6 905.0 DAY 26 9 1 1 18 2 29 5 22 10 2 9 MIN. QFE PRESSURE IN HPA 891.0 876.0 881.2 884.0 881.3 880.4 883.5 882.8 886.3 889.1 883.0 885.8 876.0 DAY 4 21 25 12 9 6 18 31 8 6 17 5 MEAN QNH PRESSURE IN HPA 1020.7 1016.7 1015.7 1014.7 1012.8 1012.1 1012.2 1014.1 1016.2 1018.9 1018.0 1019.3 1015.9 MAX. QNH PRESSURE IN HPA 1026.1 1030.9 1025.8 1027.0 1019.4 1018.7 1016.2 1020.2 1023.0 1028.3 1025.1 1026.0 1030.9 DAY 26 9 1 1 18 2 29 5 22 10 2 9 MIN. QNH PRESSURE IN HPA 1015.3 998.7 1004.4 1007.6 1004.5 1003.5 1007.0 1006.2 1010.1 1013.2 1006.4 1009.6 998.7 DAY 4 21 25 12 9 6 18 31 8 6 17 5 MEAN QFF PRESSURE IN HPA 1024.0 1018.5 1015.2 1011.1 1006.9 1005.0 1004.3 1006.1 1009.9 1015.7 1017.2 1020.2 1012.8 MAX. QFF PRESSURE IN HPA 1031.6 1034.5 1031.0 1026.6 1016.1 1013.9 1008.4 1012.0 1019.4 1028.6 1025.2 1028.9 1034.5 DAY 26 9 11 1 18 11 29 11 22 27 20 22 MIN. QFF PRESSURE IN HPA 1016.4 995.9 999.8 1003.2 998.5 994.4 996.9 996.8 1001.3 1007.8 1002.8 1007.7 994.4 DAY 4 21 24 26 9 6 10 31 8 6 18 20 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 894.8 891.0 890.3 889.3 887.5 887.0 887.0 888.7 890.5 893.2 892.6 893.8 890.5 MAX. QFE PRESSURE IN HPA 900.2 904.1 900.4 899.9 894.0 892.7 890.8 893.9 896.1 901.5 898.8 900.0 904.1 DAY 26 9 1 1 18 1 28 5 21 10 2 9 MIN. QFE PRESSURE IN HPA 890.3 873.6 880.0 881.8 879.9 879.3 882.2 881.7 885.6 887.4 882.3 885.6 873.6 DAY 18 21 25 12 9 6 10 31 8 6 17 5 MEAN QNH PRESSURE IN HPA 1019.6 1015.3 1014.5 1013.5 1011.4 1010.8 1010.9 1012.8 1014.8 1017.8 1017.2 1018.5 1014.8 MAX. QNH PRESSURE IN HPA 1025.6 1029.9 1025.8 1025.2 1018.7 1017.2 1015.1 1018.6 1021.0 1027.0 1024.0 1025.3 1029.9 DAY 26 9 1 1 18 1 28 5 21 10 2 9 MIN. QNH PRESSURE IN HPA 1014.6 996.0 1003.1 1005.1 1003.0 1002.3 1005.6 1005.0 1009.3 1011.3 1005.7 1009.3 996.0 DAY 18 21 25 12 9 6 10 31 8 6 17 5 MEAN QFF PRESSURE IN HPA 1022.7 1017.0 1013.9 1009.9 1005.6 1003.9 1003.1 1004.9 1008.7 1014.5 1016.3 1019.1 1011.6 MAX. QFF PRESSURE IN HPA 1030.9 1033.2 1030.0 1024.4 1015.8 1012.3 1007.6 1010.4 1018.7 1026.8 1023.5 1027.8 1033.2 DAY 25 9 11 1 18 1 29 5 21 27 2 22 MIN. QFF PRESSURE IN HPA 1016.2 993.5 999.0 1000.9 997.0 993.9 995.7 996.4 1001.0 1006.4 1002.8 1007.0 993.5 DAY 12 21 25 12 9 6 10 30 8 6 18 20 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 895.3 891.2 890.6 889.7 887.8 887.0 887.0 888.7 890.7 893.6 893.2 894.3 890.8 MAX. QFE PRESSURE IN HPA 900.5 904.1 900.6 900.6 895.0 893.6 890.8 893.6 896.2 901.9 899.3 900.0 904.1 DAY 26 9 1 1 18 1 28 5 19 10 2 9 MIN. QFE PRESSURE IN HPA 891.5 872.8 881.5 881.7 879.9 878.9 882.2 882.2 885.6 887.4 882.8 886.0 872.8 DAY 4 21 24 12 9 6 10 30 8 6 17 5 MEAN QNH PRESSURE IN HPA 1020.1 1015.5 1014.9 1013.8 1011.7 1010.9 1010.9 1012.8 1015.0 1018.3 1017.8 1019.0 1015.1 MAX. QNH PRESSURE IN HPA 1025.9 1029.9 1026.0 1026.0 1019.8 1018.2 1015.1 1018.2 1021.1 1027.5 1024.6 1025.3 1029.9 DAY 26 9 1 1 18 1 28 5 19 10 2 9 MIN. QNH PRESSURE IN HPA 1015.9 995.1 1004.8 1005.0 1003.0 1001.9 1005.6 1005.6 1009.3 1011.3 1006.2 1009.8 995.1 DAY 4 21 24 12 9 6 10 30 8 6 17 5 MEAN QFF PRESSURE IN HPA 1024.3 1018.2 1015.5 1011.1 1006.4 1004.1 1003.5 1005.4 1009.9 1016.1 1017.9 1020.7 1012.8 MAX. QFF PRESSURE IN HPA 1031.8 1033.6 1030.5 1025.9 1017.1 1013.9 1007.7 1011.6 1019.3 1027.7 1025.2 1029.3 1033.6 DAY 26 9 11 1 18 1 29 11 21 27 2 22 MIN. QFF PRESSURE IN HPA 1018.2 993.6 1001.6 1001.6 997.5 992.9 996.2 997.5 1001.8 1007.9 1002.7 1008.9 992.9 DAY 4 21 24 12 9 6 10 30 8 6 17 20 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 895.9 892.1 891.5 890.9 889.2 888.4 888.4 889.8 891.7 894.5 893.8 894.5 891.7 MAX. QFE PRESSURE IN HPA 900.5 905.0 902.0 902.1 895.8 895.0 891.4 894.6 897.8 902.3 898.8 900.9 905.0 DAY 25 9 1 1 18 1 28 5 19 10 2 9 MIN. QFE PRESSURE IN HPA 891.9 878.5 882.2 881.3 882.2 880.5 883.6 883.0 886.6 888.2 883.6 886.2 878.5 DAY 4 21 24 12 9 6 18 30 4 6 17 5 MEAN QNH PRESSURE IN HPA 1020.8 1016.5 1015.9 1015.3 1013.3 1012.5 1012.5 1014.0 1016.1 1019.2 1018.4 1019.2 1016.1 MAX. QNH PRESSURE IN HPA 1025.9 1030.9 1027.6 1027.7 1020.7 1019.8 1015.8 1019.3 1022.9 1027.9 1024.0 1026.3 1030.9 DAY 25 9 1 1 18 1 28 5 19 10 2 9 MIN. QNH PRESSURE IN HPA 1016.3 1001.4 1005.6 1004.5 1005.6 1003.7 1007.1 1006.4 1010.4 1012.2 1007.1 1010.0 1001.4 DAY 4 21 24 12 9 6 18 30 4 6 17 5 MEAN QFF PRESSURE IN HPA 1024.9 1018.9 1016.1 1012.2 1007.9 1005.6 1004.9 1006.3 1010.4 1016.6 1018.4 1020.9 1013.6 MAX. QFF PRESSURE IN HPA 1032.0 1034.9 1030.5 1027.9 1017.8 1015.5 1008.3 1012.4 1020.1 1027.9 1025.8 1030.8 1034.9 DAY 25 9 11 1 18 1 30 11 21 27 19 21 MIN. QFF PRESSURE IN HPA 1018.5 1000.1 1001.7 999.3 999.7 994.5 997.3 997.9 1003.4 1008.3 1003.3 1008.7 994.5 DAY 4 21 24 12 9 6 9 30 4 6 17 5 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 895.9 891.8 891.4 890.7 889.0 888.3 888.5 889.8 891.7 894.5 893.6 894.5 891.6 MAX. QFE PRESSURE IN HPA 900.9 904.3 901.0 901.4 895.6 895.2 891.4 894.4 897.6 902.4 898.4 900.5 904.3 DAY 25 9 1 1 17 1 28 5 19 10 4 9 MIN. QFE PRESSURE IN HPA 891.7 879.0 882.2 881.5 882.0 880.5 883.1 882.8 886.8 887.4 883.6 887.3 879.0 DAY 4 21 24 12 8 6 18 30 4 24 17 5 MEAN QNH PRESSURE IN HPA 1020.7 1016.3 1015.8 1015.0 1013.1 1012.3 1012.5 1014.0 1016.1 1019.3 1018.2 1019.2 1016.0 MAX. QNH PRESSURE IN HPA 1026.3 1030.1 1026.5 1026.9 1020.5 1020.0 1015.8 1019.1 1022.7 1028.0 1023.6 1025.9 1030.1 DAY 25 9 1 1 17 1 28 5 19 10 4 9 MIN. QNH PRESSURE IN HPA 1016.1 1002.0 1005.6 1004.8 1005.3 1003.7 1006.6 1006.2 1010.7 1011.3 1007.1 1011.2 1002.0 DAY 4 21 24 12 8 6 18 30 4 24 17 5 MEAN QFF PRESSURE IN HPA 1024.2 1017.9 1015.3 1011.3 1007.1 1005.1 1004.6 1005.8 1009.8 1016.1 1017.5 1020.1 1012.9 MAX. QFF PRESSURE IN HPA 1032.2 1034.5 1029.9 1026.6 1016.9 1015.6 1008.0 1012.0 1019.9 1027.1 1026.7 1030.3 1034.5 DAY 25 9 11 1 18 1 29 11 19 27 19 21 MIN. QFF PRESSURE IN HPA 1017.6 1001.3 1001.5 998.5 998.6 994.1 996.9 996.7 1002.3 1006.8 1003.3 1009.8 994.1 DAY 4 21 24 12 9 6 9 30 4 24 17 20 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.4 2.5 8.3 11.0 15.5 21.5 24.6 25.3 21.9 17.0 7.9 -0.6 13.1 MINIMUN AIR TEMPERATURE (C) -1.4 -1.3 2.5 6.9 10.5 14.5 17.0 17.9 13.6 10.0 3.6 -4.5 7.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 3 3 0 0 0 0 6 DAYS WITH MINIMUM TEMP. <=-4 12 6 2 0 0 0 0 0 0 0 0 20 40 DAYS WITH FREEZING MIN.<= 0 18 17 10 0 0 0 0 0 0 0 9 25 79 TEMPERATURE RECORDS LOWEST(C) -8.6 -8.6 -8.2 2.0 5.0 10.0 14.2 9.4 9.0 4.2 -1.6 -10.6 -10.6 DAY 16 7 11 6 9 5 23 14 29 24 19 28 MAXIMUM AIR TEMPERATURE (C) 7.4 8.1 16.5 16.8 21.4 28.5 32.0 33.0 30.5 25.8 14.2 4.4 19.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 3 11 24 26 18 5 0 0 87 DAYS WITH MAXIMUM TEMP. <= 0 3 2 0 0 0 0 0 0 0 0 0 5 10 TEMPERATURE RECORDS HIGHEST(C) 18.2 18.2 26.6 28.8 31.4 36.8 39.4 38.8 36.8 33.0 22.4 12.6 39.4 DAY 3 26 28 19 29 13 18 8 11 3 12 9 DIF. BETWEEN (MAX.-MIN.) (C) 8.8 9.4 14.0 9.9 10.9 14.0 15.0 15.1 16.9 15.8 10.6 8.9 12.5 MEAN DAILY TEMP. (MDT) (C) 3.0 3.4 9.5 11.9 16.0 21.5 24.5 25.5 22.1 17.9 8.9 -0.0 13.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 3.7 45.7 110.0 139.5 38.8 6.0 0.0 0.0 343.7 HEATING DEG. DAYS(BASE 18 0C) 464.1 408.4 264.0 188.4 85.3 4.7 0.0 0.0 0.0 40.5 271.7 559.4 2286.6 DEWPOINT (MEAN C) -2.7 -1.9 0.2 6.6 8.8 9.0 8.3 10.6 6.6 5.8 2.8 -5.5 4.1 MIXING RATIO (G/KG) 3.63 3.81 4.62 7.01 8.08 8.38 8.18 9.75 7.47 6.86 5.43 3.02 6.35 VAPOUR PRESSURE (HPA) 5.18 5.44 6.55 9.90 11.41 11.80 11.53 13.68 10.58 9.75 7.75 4.31 8.99 SATURATION DEF. (HPA) 2.70 2.32 5.44 3.88 7.10 15.14 20.85 20.17 16.98 10.92 3.40 1.87 9.23 RELATIVE HUMIDITY (MEAN %) 74 76 63 77 68 49 41 45 43 53 73 74 61 RELATIVE HUMIDITY (MAX. %) 89 91 87 94 86 71 61 67 71 78 91 88 81 RELATIVE HUMIDITY (MIN. %) 51 55 35 57 50 31 23 26 21 30 51 58 41 RELATIVE HUMIDITY (MEAN% 03UTC) 82 86 81 89 82 64 57 61 65 74 88 81 76 RELATIVE HUMIDITY (MEAN% 09UTC) 62 67 48 66 58 37 28 30 26 39 59 67 49 RELATIVE HUMIDITY (MEAN% 15UTC) 71 74 51 71 58 39 29 35 30 43 67 71 53 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 26.4 34.7 59.2 93.4 47.1 3.7 7.1 0.2 0.0 1.1 34.8 30.0 337.7 DAYS WITH PRECIPITATION >=10 0 1 3 5 2 0 0 0 0 0 1 0 12 DAYS WITH PRECIPITATION >= 5 2 2 4 5 2 0 0 0 0 0 3 2 20 DAYS WITH PRECIPITATION >= 1 5 9 8 11 5 1 3 0 0 0 5 8 55 DAYS WITH PRECIPITATION 8 13 11 18 11 3 4 2 0 3 6 11 90 GREATEST DAILY PRECIPITATION 8.0 15.0 16.0 22.0 22.0 3.0 3.8 0.1 0.0 0.7 13.0 8.8 22.0 DAY 12 5 23 12 4 22 28 12 ** 22 3 13 DAY WITH THUNDER STORM 1 1 1 7 8 4 3 0 0 2 0 1 28 DAYS WITH SNOW OR SLEET 5 11 2 0 0 0 0 0 0 0 0 9 27 DAYS WITH DUST 0 0 2 1 2 6 1 2 2 2 0 0 18 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 10.6 13.9 13.4 13.5 12.8 13.7 12.2 12.4 10.0 10.6 9.0 12.2 12.3 PREVAILING WIND PERCENT 15.7 24.6 25.8 34.6 46.4 48.3 28.6 39.5 28.8 21.4 18.3 17.7 29.1 CALMS PERCENT OF WIND 72.2 66.1 60.5 51.7 48.0 40.0 51.6 47.2 62.5 70.2 79.6 69.0 59.8 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 230 264 265 266 277 277 293 282 279 276 274 237 272 VECTOR WIND MAGNITUDE(KNOTS) 1.6 3.1 3.1 4.6 5.9 6.7 3.6 4.6 2.8 2.4 1.6 1.9 3.4 WIND STEADINESES (MEAN %) 45.7 68.9 60.8 71.9 92.2 87.0 67.9 76.7 80.0 82.8 88.9 48.7 70.8 WIND SPEED (MEAN KNOTS) 3.5 4.5 5.1 6.4 6.4 7.7 5.3 6.0 3.5 2.9 1.8 3.9 4.8 FASTEST WIND DIRECTION 160 270 270 210 270 270 280 270 270 270 270 270 270 FASTEST WIND SPEED (KNOTS) 45 33 58 54 58 29 33 31 27 31 16 49 58 DAY 7 27 5 25 11 3 19 19 18 22 3 22 DAYS WITH SKY CLEAR (0-2)/8 10 8 12 5 15 20 23 27 29 21 11 13 194 DAYS WITH P.CLOUDY (3-6)/8 8 10 11 11 6 10 7 4 1 10 11 6 95 DAYS WITH CLOUDY (7-8)/8 13 10 8 14 10 0 1 0 0 0 8 12 76 DAYS WITH VISIBILITY =< 2 KM 3 6 1 5 4 0 0 0 0 0 3 8 30 DURATION OF SUNSHINE HOURS 145.8 143.9 201.9 147.9 251.1 317.8 344.9 333.7 309.0 258.2 158.0 116.2 2728.4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 893.4 892.6 890.9 888.6 890.1 888.2 889.2 888.0 892.3 894.0 895.8 893.5 891.4 MAX. QFE PRESSURE IN HPA 901.3 903.5 905.0 897.8 897.2 896.0 895.0 894.7 898.3 900.0 903.8 906.5 906.5 DAY-HOUR 27- 6 19- 6 10-18 1- 6 16-21 25- 3 3- 6 31- 0 21- 6 11- 6 18- 6 3- 6 MIN. QFE PRESSURE IN HPA 882.3 881.7 880.0 876.0 884.4 879.0 881.2 880.9 886.7 887.6 885.4 878.9 876.0 DAY-HOUR 8-12 27- 0 29- 0 3-18 29-12 20-15 24-15 17-12 10-12 21-12 12-12 21-21 MEAN QNH PRESSURE IN HPA 1018.0 1017.1 1015.2 1012.6 1014.3 1012.2 1013.3 1012.0 1016.8 1018.6 1020.6 1018.2 1015.7 MAX. QNH PRESSURE IN HPA 1026.8 1029.2 1030.9 1022.9 1022.2 1020.9 1019.8 1019.4 1023.5 1025.3 1029.6 1032.6 1032.6 DAY-HOUR 27- 6 19- 6 10-18 1- 6 16-21 25- 3 3- 6 31- 0 21- 6 11- 6 18- 6 3- 6 MIN. QNH PRESSURE IN HPA 1005.7 1005.0 1003.1 998.7 1008.0 1002.0 1004.4 1004.1 1010.6 1011.6 1009.1 1001.9 998.7 DAY-HOUR 8-12 27- 0 29- 0 3-18 29-12 20-15 24-15 17-12 10-12 21-12 12-12 21-21 MEAN QFF PRESSURE IN HPA 1020.7 1019.7 1015.0 1010.9 1010.6 1005.7 1005.6 1003.8 1010.3 1014.3 1020.5 1022.4 1013.3 MAX. QFF PRESSURE IN HPA 1031.1 1034.4 1036.3 1023.3 1020.4 1015.5 1013.0 1013.5 1017.4 1022.8 1031.9 1038.9 1038.9 DAY-HOUR 27-15 19- 0 10-18 1- 6 17- 6 25- 3 3- 6 31- 3 30- 3 23- 6 18- 6 4- 6 MIN. QFF PRESSURE IN HPA 1002.5 1002.5 997.8 995.1 1001.0 994.4 996.2 994.7 1002.6 1007.0 1006.3 1001.1 994.4 DAY-HOUR 8- 0 27- 0 29- 0 3-18 29-21 20- 0 24-12 17-12 11-12 22- 0 12-12 21-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 893.3 892.1 890.6 888.4 890.0 888.2 889.0 888.1 892.2 894.0 895.7 893.3 891.2 MAX. QFE PRESSURE IN HPA 900.0 903.1 903.3 896.2 896.7 895.6 893.4 894.7 897.1 898.4 903.0 904.9 904.9 DAY 26 19 11 1 17 25 3 31 21 11 18 3 MIN. QFE PRESSURE IN HPA 882.8 881.7 880.0 877.0 885.8 880.0 882.0 881.8 887.7 887.8 887.2 879.4 877.0 DAY 8 27 29 4 30 20 25 17 11 22 12 22 MEAN QNH PRESSURE IN HPA 1017.9 1016.5 1014.9 1012.5 1014.2 1012.2 1013.1 1012.1 1016.7 1018.7 1020.5 1017.8 1015.6 MAX. QNH PRESSURE IN HPA 1025.3 1028.8 1029.0 1021.1 1021.7 1020.5 1018.0 1019.4 1022.1 1023.6 1028.7 1030.8 1030.8 DAY 26 19 11 1 17 25 3 31 21 11 18 3 MIN. QNH PRESSURE IN HPA 1006.2 1005.0 1003.1 999.8 1009.6 1003.1 1005.3 1005.1 1011.7 1011.8 1011.1 1002.4 999.8 DAY 8 27 29 4 30 20 25 17 11 22 12 22 MEAN QFF PRESSURE IN HPA 1020.0 1018.7 1014.1 1010.5 1010.4 1005.6 1005.3 1003.8 1009.9 1013.8 1020.0 1021.5 1012.8 MAX. QFF PRESSURE IN HPA 1029.3 1034.4 1035.2 1021.4 1019.1 1015.0 1011.7 1012.4 1015.6 1020.9 1030.4 1037.1 1037.1 DAY 26 19 11 1 17 25 2 31 30 23 18 4 MIN. QFF PRESSURE IN HPA 1002.5 1002.5 997.8 998.0 1001.8 994.4 996.9 995.7 1004.3 1007.0 1007.2 1002.1 994.4 DAY 8 27 29 4 30 20 25 17 11 22 13 22 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 893.5 892.2 891.1 888.9 890.5 889.0 889.9 889.0 893.0 894.5 895.9 893.5 891.7 MAX. QFE PRESSURE IN HPA 899.8 902.7 903.5 896.9 896.7 896.0 894.6 894.7 898.1 899.4 903.0 905.4 905.4 DAY 26 19 11 1 17 25 3 31 21 11 18 3 MIN. QFE PRESSURE IN HPA 883.1 881.7 881.2 877.2 886.2 881.8 883.5 882.7 888.7 888.0 886.7 880.7 877.2 DAY 8 27 21 4 12 20 25 17 11 22 12 22 MEAN QNH PRESSURE IN HPA 1018.1 1016.7 1015.5 1013.0 1014.8 1013.1 1014.1 1013.1 1017.6 1019.3 1020.8 1018.1 1016.2 MAX. QNH PRESSURE IN HPA 1025.1 1028.3 1029.2 1021.9 1021.7 1020.9 1019.3 1019.4 1023.2 1024.7 1028.7 1031.3 1031.3 DAY 26 19 11 1 17 25 3 31 21 11 18 3 MIN. QNH PRESSURE IN HPA 1006.6 1005.0 1004.4 1000.0 1010.0 1005.1 1007.0 1006.1 1012.8 1012.0 1010.6 1003.9 1000.0 DAY 8 27 21 4 12 20 25 17 11 22 12 22 MEAN QFF PRESSURE IN HPA 1021.2 1019.7 1015.8 1011.6 1011.2 1006.8 1006.6 1005.2 1011.9 1015.8 1021.3 1022.8 1014.2 MAX. QFF PRESSURE IN HPA 1029.9 1034.3 1036.0 1022.6 1019.7 1015.5 1012.6 1013.5 1017.4 1022.1 1031.5 1038.1 1038.1 DAY 26 19 11 1 17 25 2 31 30 23 18 4 MIN. QFF PRESSURE IN HPA 1003.2 1003.7 1001.4 998.5 1003.3 997.2 999.0 997.4 1006.9 1008.5 1008.2 1004.3 997.2 DAY 8 27 21 4 25 20 25 17 11 22 13 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 894.3 893.1 892.0 889.4 890.8 889.3 890.3 889.2 893.7 895.2 896.8 894.5 892.4 MAX. QFE PRESSURE IN HPA 901.3 903.5 904.4 897.8 897.2 896.0 895.0 894.7 898.3 900.0 903.8 906.5 906.5 DAY 27 19 11 1 17 25 3 31 21 11 18 3 MIN. QFE PRESSURE IN HPA 883.5 882.6 881.8 877.2 886.2 882.1 884.0 883.0 889.4 888.6 887.3 883.2 877.2 DAY 8 27 21 4 12 20 24 17 11 22 12 22 MEAN QNH PRESSURE IN HPA 1019.0 1017.6 1016.4 1013.5 1015.1 1013.4 1014.5 1013.4 1018.3 1020.1 1021.8 1019.2 1016.9 MAX. QNH PRESSURE IN HPA 1026.8 1029.2 1030.2 1022.9 1022.2 1020.9 1019.8 1019.4 1023.5 1025.3 1029.6 1032.6 1032.6 DAY 27 19 11 1 17 25 3 31 21 11 18 3 MIN. QNH PRESSURE IN HPA 1007.0 1006.0 1005.1 1000.0 1010.0 1005.4 1007.6 1006.4 1013.6 1012.7 1011.2 1006.7 1000.0 DAY 8 27 21 4 12 20 24 17 11 22 12 22 MEAN QFF PRESSURE IN HPA 1022.0 1020.5 1016.5 1011.9 1011.5 1007.0 1006.9 1005.3 1011.8 1015.8 1022.0 1023.8 1014.6 MAX. QFF PRESSURE IN HPA 1030.7 1034.1 1035.4 1023.3 1020.4 1015.2 1013.0 1013.4 1017.3 1022.8 1031.9 1038.9 1038.9 DAY 26 19 11 1 17 25 3 31 30 23 18 4 MIN. QFF PRESSURE IN HPA 1004.0 1003.6 1000.7 997.9 1002.9 997.7 999.0 997.3 1006.5 1008.4 1009.8 1007.3 997.3 DAY 8 27 21 4 25 20 25 17 11 22 12 22 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 893.5 892.8 891.1 888.6 890.2 888.4 889.5 888.0 892.3 893.8 895.8 893.5 891.5 MAX. QFE PRESSURE IN HPA 901.3 901.6 903.4 897.4 897.2 895.1 893.9 894.0 896.8 898.3 903.5 905.5 905.5 DAY 27 19 10 1 17 25 3 31 21 10 18 3 MIN. QFE PRESSURE IN HPA 883.6 883.8 881.5 876.4 885.4 881.1 882.2 881.4 888.1 888.6 885.8 881.8 876.4 DAY 8 25 21 4 12 20 24 17 10 22 12 21 MEAN QNH PRESSURE IN HPA 1018.1 1017.3 1015.4 1012.7 1014.5 1012.5 1013.6 1012.0 1016.8 1018.4 1020.7 1018.1 1015.8 MAX. QNH PRESSURE IN HPA 1026.8 1027.1 1029.1 1022.5 1022.2 1019.9 1018.6 1018.7 1021.8 1023.5 1029.2 1031.5 1031.5 DAY 27 19 10 1 17 25 3 31 21 10 18 3 MIN. QNH PRESSURE IN HPA 1007.1 1007.3 1004.8 999.1 1009.1 1004.3 1005.6 1004.7 1012.1 1012.7 1009.6 1005.1 999.1 DAY 8 25 21 4 12 20 24 17 10 22 12 21 MEAN QFF PRESSURE IN HPA 1020.4 1019.7 1014.8 1010.7 1010.5 1005.9 1005.8 1003.5 1009.8 1013.5 1020.2 1022.0 1013.1 MAX. QFF PRESSURE IN HPA 1030.2 1031.5 1033.0 1022.6 1020.2 1013.7 1011.8 1012.3 1015.4 1019.9 1030.7 1037.3 1037.3 DAY 27 18 11 1 17 25 1 31 30 23 18 3 MIN. QFF PRESSURE IN HPA 1004.4 1006.3 1000.4 997.7 1002.5 996.5 997.1 994.8 1004.7 1008.7 1006.6 1005.4 994.8 DAY 8 26 28 4 29 20 24 17 11 22 12 21 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 892.6 892.2 889.9 887.9 889.4 887.1 888.4 886.8 891.1 892.7 894.9 893.0 890.5 MAX. QFE PRESSURE IN HPA 900.5 900.4 903.2 896.0 895.8 893.6 892.5 892.2 895.7 897.5 902.3 904.9 904.9 DAY 27 18 10 1 17 24 3 31 29 10 18 3 MIN. QFE PRESSURE IN HPA 882.3 882.9 880.4 877.4 884.4 879.4 881.3 880.9 886.7 887.6 885.4 881.1 877.4 DAY 8 25 28 4 29 20 24 17 10 21 12 21 MEAN QNH PRESSURE IN HPA 1017.1 1016.6 1014.1 1011.8 1013.5 1011.0 1012.4 1010.7 1015.4 1017.3 1019.7 1017.6 1014.8 MAX. QNH PRESSURE IN HPA 1025.9 1025.8 1028.9 1020.9 1020.7 1018.2 1017.0 1016.7 1020.6 1022.6 1027.9 1030.8 1030.8 DAY 27 18 10 1 17 24 3 31 29 10 18 3 MIN. QNH PRESSURE IN HPA 1005.7 1006.3 1003.5 1000.2 1008.0 1002.4 1004.5 1004.1 1010.6 1011.6 1009.1 1004.3 1000.2 DAY 8 25 28 4 29 20 24 17 10 21 12 21 MEAN QFF PRESSURE IN HPA 1019.3 1018.8 1013.4 1009.8 1009.5 1004.5 1004.6 1002.4 1008.7 1012.4 1019.1 1021.3 1012.0 MAX. QFF PRESSURE IN HPA 1029.6 1030.7 1032.6 1019.9 1018.0 1012.7 1010.2 1010.1 1016.0 1017.8 1028.8 1036.5 1036.5 DAY 27 18 10 1 17 24 28 31 29 31 18 3 MIN. QFF PRESSURE IN HPA 1003.2 1004.8 999.1 997.1 1001.8 994.6 996.2 994.7 1002.6 1007.2 1006.3 1003.9 994.6 DAY 8 26 28 3 29 20 24 17 11 21 12 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 893.3 892.6 890.2 888.0 889.5 887.0 888.2 886.7 891.4 893.2 895.4 893.5 890.8 MAX. QFE PRESSURE IN HPA 901.2 901.6 904.7 895.5 895.6 893.8 892.2 891.8 896.1 897.5 902.4 905.3 905.3 DAY 27 18 10 1 17 24 2 29 29 10 17 3 MIN. QFE PRESSURE IN HPA 885.3 882.9 880.2 876.4 884.4 879.0 881.2 881.2 886.9 887.7 887.0 880.8 876.4 DAY 8 25 28 3 29 20 24 17 10 21 12 21 MEAN QNH PRESSURE IN HPA 1017.9 1017.2 1014.5 1012.0 1013.7 1010.9 1012.2 1010.6 1015.8 1017.8 1020.2 1018.1 1015.1 MAX. QNH PRESSURE IN HPA 1026.7 1027.1 1030.6 1020.3 1020.5 1018.4 1016.7 1016.2 1021.0 1022.6 1028.0 1031.2 1031.2 DAY 27 18 10 1 17 24 2 29 29 10 17 3 MIN. QNH PRESSURE IN HPA 1009.0 1006.3 1003.3 999.1 1008.0 1002.0 1004.4 1004.4 1010.8 1011.7 1010.9 1004.0 999.1 DAY 8 25 28 3 29 20 24 17 10 21 12 21 MEAN QFF PRESSURE IN HPA 1021.0 1020.2 1014.7 1010.5 1010.0 1004.6 1004.7 1002.8 1010.1 1014.4 1020.7 1022.8 1013.0 MAX. QFF PRESSURE IN HPA 1031.1 1032.2 1035.4 1020.2 1018.0 1013.3 1010.8 1009.8 1017.2 1018.9 1030.4 1038.0 1038.0 DAY 27 18 10 1 17 24 28 31 29 23 18 3 MIN. QFF PRESSURE IN HPA 1007.4 1006.0 999.8 996.2 1001.9 994.6 996.6 995.7 1004.9 1008.8 1009.7 1002.7 994.6 DAY 7 26 28 3 29 20 24 17 11 21 12 21 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 893.6 893.1 891.3 889.0 890.4 888.3 889.4 888.1 892.3 894.1 895.9 893.7 891.6 MAX. QFE PRESSURE IN HPA 901.2 902.9 905.0 895.6 896.8 895.8 893.5 893.7 897.0 898.2 903.0 905.3 905.3 DAY 27 18 10 1 16 24 2 29 29 10 17 3 MIN. QFE PRESSURE IN HPA 885.0 882.7 882.1 876.0 884.4 880.9 882.0 882.2 887.9 888.0 887.6 879.9 876.0 DAY 7 26 28 3 29 20 24 17 10 21 12 21 MEAN QNH PRESSURE IN HPA 1018.2 1017.6 1015.7 1013.1 1014.7 1012.3 1013.6 1012.2 1016.8 1018.8 1020.7 1018.4 1016.0 MAX. QNH PRESSURE IN HPA 1026.7 1028.6 1030.9 1020.5 1021.8 1020.7 1018.1 1018.3 1022.0 1023.3 1028.7 1031.2 1031.2 DAY 27 18 10 1 16 24 2 29 29 10 17 3 MIN. QNH PRESSURE IN HPA 1008.7 1006.1 1005.4 998.7 1008.0 1004.1 1005.3 1005.6 1011.9 1012.0 1011.6 1003.0 998.7 DAY 7 26 28 3 29 20 24 17 10 21 12 21 MEAN QFF PRESSURE IN HPA 1021.2 1020.5 1015.7 1011.4 1011.0 1005.9 1005.9 1004.0 1010.2 1014.6 1021.0 1022.9 1013.7 MAX. QFF PRESSURE IN HPA 1030.2 1033.8 1036.3 1020.3 1020.1 1015.0 1012.7 1011.8 1016.6 1019.7 1031.5 1038.3 1038.3 DAY 25 18 10 26 16 24 1 31 29 31 18 3 MIN. QFF PRESSURE IN HPA 1005.2 1005.2 1002.0 995.1 1001.5 996.5 996.9 995.3 1004.7 1008.5 1009.3 1001.7 995.1 DAY 7 26 28 3 29 19 24 8 10 21 12 21 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 893.4 892.7 891.2 888.6 890.2 888.3 889.1 888.2 892.3 894.1 895.8 893.4 891.4 MAX. QFE PRESSURE IN HPA 900.3 903.1 904.3 895.2 897.2 895.6 893.1 893.7 896.9 898.0 903.0 905.3 905.3 DAY 27 18 10 26 16 24 2 29 29 10 17 2 MIN. QFE PRESSURE IN HPA 883.9 882.3 881.0 876.2 885.0 880.6 882.0 882.5 887.7 888.0 888.1 878.9 876.2 DAY 7 26 28 3 29 19 24 15 10 21 11 21 MEAN QNH PRESSURE IN HPA 1018.0 1017.3 1015.5 1012.6 1014.4 1012.3 1013.2 1012.2 1016.8 1018.8 1020.6 1018.0 1015.8 MAX. QNH PRESSURE IN HPA 1025.7 1028.8 1030.1 1020.0 1022.2 1020.5 1017.7 1018.3 1021.9 1023.1 1028.7 1031.2 1031.2 DAY 27 18 10 26 16 24 2 29 29 10 17 2 MIN. QNH PRESSURE IN HPA 1007.4 1005.7 1004.2 998.9 1008.7 1003.8 1005.3 1005.9 1011.7 1012.0 1012.1 1001.9 998.9 DAY 7 26 28 3 29 19 24 15 10 21 11 21 MEAN QFF PRESSURE IN HPA 1020.4 1019.6 1014.8 1010.6 1010.4 1005.7 1005.3 1003.7 1009.7 1014.0 1020.3 1021.9 1013.0 MAX. QFF PRESSURE IN HPA 1029.5 1033.9 1035.6 1020.4 1020.3 1014.5 1012.1 1011.4 1015.3 1019.6 1030.1 1037.9 1037.9 DAY 25 18 10 26 16 24 1 31 29 22 17 3 MIN. QFF PRESSURE IN HPA 1003.8 1003.0 999.0 996.3 1001.0 995.1 997.0 995.7 1004.5 1007.5 1008.0 1001.1 995.1 DAY 7 26 28 3 29 19 24 8 10 21 12 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.6 3.1 4.7 10.7 14.7 20.1 24.8 23.8 19.3 16.5 6.1 2.4 12.3 MINIMUN AIR TEMPERATURE (C) -1.8 -0.5 0.8 6.2 8.6 13.5 18.8 16.6 12.0 8.9 1.9 -1.0 7.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 3 0 0 0 0 0 3 DAYS WITH MINIMUM TEMP. <=-4 8 3 3 0 0 0 0 0 0 0 2 6 22 DAYS WITH FREEZING MIN.<= 0 23 15 12 1 1 0 0 0 0 0 13 17 82 TEMPERATURE RECORDS LOWEST(C) -9.2 -11.0 -10.0 0.0 -0.2 4.0 15.0 12.6 1.6 5.0 -4.6 -13.0 -13.0 DAY 22 18 3 18 2 7 5 31 28 8 24 13 MAXIMUM AIR TEMPERATURE (C) 6.8 8.5 10.4 16.4 21.2 26.8 32.1 31.6 27.2 24.7 11.9 8.0 18.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 0 9 22 27 10 0 0 0 69 DAYS WITH MAXIMUM TEMP. <= 0 1 1 2 0 0 0 0 0 0 0 0 3 7 TEMPERATURE RECORDS HIGHEST(C) 14.8 16.8 21.8 30.4 28.4 34.0 39.0 35.4 34.0 28.4 21.4 17.2 39.0 DAY 13 4 26 7 17 18 17 12 18 29 10 19 DIF. BETWEEN (MAX.-MIN.) (C) 8.6 9.0 9.6 10.2 12.6 13.3 13.3 15.0 15.2 15.8 10.0 9.0 11.8 MEAN DAILY TEMP. (MDT) (C) 2.5 4.0 5.6 11.3 14.9 20.1 25.4 24.1 19.6 16.8 6.9 3.5 12.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.4 0.0 25.6 137.1 95.9 15.7 0.0 0.0 0.0 275.7 HEATING DEG. DAYS(BASE 18 0C) 481.2 392.9 385.1 212.2 110.1 17.8 0.0 0.0 25.9 48.4 333.3 449.9 2456.9 DEWPOINT (MEAN C) -2.8 -1.0 1.3 5.5 8.3 11.1 13.7 8.9 5.8 4.2 0.9 -1.5 4.5 MIXING RATIO (G/KG) 3.57 4.10 4.90 6.54 8.06 9.61 11.42 8.57 7.06 6.04 4.75 3.99 6.55 VAPOUR PRESSURE (HPA) 5.09 5.82 6.96 9.26 11.39 13.51 15.98 12.08 9.99 8.58 6.77 5.70 9.26 SATURATION DEF. (HPA) 2.07 2.20 2.19 4.86 6.36 11.26 16.53 18.67 13.78 11.21 3.28 1.98 7.86 RELATIVE HUMIDITY (MEAN %) 76 78 82 75 69 60 54 43 45 49 73 77 65 RELATIVE HUMIDITY (MAX. %) 89 91 95 91 89 81 77 66 67 74 90 91 83 RELATIVE HUMIDITY (MIN. %) 57 58 65 57 44 41 33 24 27 28 53 59 46 RELATIVE HUMIDITY (MEAN% 03UTC) 85 85 93 87 87 75 74 63 63 67 86 88 79 RELATIVE HUMIDITY (MEAN% 09UTC) 65 70 73 64 51 48 39 30 33 35 58 66 53 RELATIVE HUMIDITY (MEAN% 15UTC) 74 73 75 69 58 47 42 32 35 37 70 75 57 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 23.3 50.6 78.0 89.6 42.6 3.6 0.0 5.0 0.1 2.9 51.1 26.3 373.1 DAYS WITH PRECIPITATION >=10 0 1 3 4 3 0 0 0 0 0 2 1 14 DAYS WITH PRECIPITATION >= 5 1 5 3 8 4 0 0 1 0 0 5 2 29 DAYS WITH PRECIPITATION >= 1 5 7 10 11 4 1 0 1 0 2 7 6 54 DAYS WITH PRECIPITATION 9 13 16 16 12 6 2 2 1 4 9 11 101 GREATEST DAILY PRECIPITATION 6.8 14.1 23.5 18.0 13.0 3.3 0.0 5.0 0.1 1.1 15.0 10.2 23.5 DAY 18 5 8 11 9 20 ** 3 11 5 4 7 DAY WITH THUNDER STORM 0 0 3 4 3 3 0 0 0 2 1 0 16 DAYS WITH SNOW OR SLEET 7 12 10 2 0 0 0 0 0 0 2 7 40 DAYS WITH DUST 1 0 1 3 0 1 1 1 1 1 0 0 10 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 13.5 11.8 13.1 14.1 13.5 12.6 11.3 10.5 12.1 11.0 11.2 10.6 12.2 PREVAILING WIND PERCENT 12.1 25.9 32.3 34.2 33.5 47.9 55.6 35.1 32.9 21.8 20.4 11.3 30.2 CALMS PERCENT OF WIND 80.6 55.4 58.5 52.1 60.5 45.8 29.8 41.9 56.3 66.5 70.4 76.6 57.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 251 259 272 273 277 275 282 292 283 259 268 252 274 VECTOR WIND MAGNITUDE(KNOTS) 1.5 2.4 4.0 4.5 4.7 6.1 6.0 3.9 4.3 2.7 2.3 1.0 3.6 WIND STEADINESES (MEAN %) 57.7 44.4 76.9 71.4 92.2 92.4 77.9 68.4 87.8 71.1 74.2 40.0 73.5 WIND SPEED (MEAN KNOTS) 2.6 5.4 5.2 6.3 5.1 6.6 7.7 5.7 4.9 3.8 3.1 2.5 4.9 FASTEST WIND DIRECTION 170 170 280 280 290 270 270 260 280 280 270 150 280 FASTEST WIND SPEED (KNOTS) 29 39 49 31 29 39 25 23 27 29 29 29 49 DAY 3 18 8 28 25 6 29 3 7 5 4 19 DAYS WITH SKY CLEAR (0-2)/8 15 7 7 2 16 20 20 28 27 19 12 10 183 DAYS WITH P.CLOUDY (3-6)/8 5 8 9 13 9 6 11 3 2 10 9 11 96 DAYS WITH CLOUDY (7-8)/8 11 13 15 15 6 4 0 0 1 2 9 10 86 DAYS WITH VISIBILITY =< 2 KM 7 8 8 8 0 0 0 0 0 0 4 7 42 DURATION OF SUNSHINE HOURS 141.4 124.4 134.0 130.7 287.3 308.0 290.5 353.4 295.1 249.1 142.1 123.7 2579.7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 892.9 889.4 890.8 891.6 892.2 888.9 886.6 890.0 891.8 892.7 895.2 895.4 891.5 MAX. QFE PRESSURE IN HPA 899.7 900.0 901.8 900.0 901.9 895.8 894.6 894.2 900.2 899.9 904.4 907.3 907.3 DAY-HOUR 11- 6 12-18 2-18 30-18 1- 6 6- 6 3- 6 4- 6 27- 6 15- 6 23- 6 11-18 MIN. QFE PRESSURE IN HPA 877.8 876.8 878.4 884.9 885.6 882.7 880.7 886.0 884.5 884.5 886.9 885.1 876.8 DAY-HOUR 28-21 19- 6 26-15 5-15 29-12 30-12 8-15 26-15 7- 0 27- 9 20-12 6-15 MEAN QNH PRESSURE IN HPA 1017.5 1013.6 1015.1 1016.0 1016.7 1012.9 1010.4 1014.3 1016.2 1017.2 1020.0 1020.2 1015.8 MAX. QNH PRESSURE IN HPA 1025.0 1025.3 1027.3 1025.3 1027.5 1020.7 1019.3 1018.9 1025.6 1025.2 1030.2 1033.5 1033.5 DAY-HOUR 11- 6 12-18 2-18 30-18 1- 6 6- 6 3- 6 4- 6 27- 6 15- 6 23- 6 11-18 MIN. QNH PRESSURE IN HPA 1000.7 999.5 1001.3 1008.6 1009.3 1006.1 1003.9 1009.8 1008.1 1008.1 1010.8 1008.8 999.5 DAY-HOUR 28-21 19- 6 26-15 5-15 29-12 30-12 8-15 26-15 7- 0 27- 9 20-12 6-15 MEAN QFF PRESSURE IN HPA 1020.6 1015.7 1016.5 1014.5 1013.3 1007.0 1002.3 1006.8 1010.8 1013.1 1020.8 1022.9 1013.7 MAX. QFF PRESSURE IN HPA 1030.8 1030.2 1034.1 1026.8 1029.6 1019.9 1012.9 1013.0 1023.7 1021.7 1034.6 1041.6 1041.6 DAY-HOUR 23- 6 12-21 2-18 30-18 1- 6 6-18 3- 6 4- 3 27- 3 15-15 25- 6 12- 3 MIN. QFF PRESSURE IN HPA 1000.7 1000.5 998.0 1003.2 1003.5 998.6 994.6 1002.0 1000.7 1001.4 1009.4 1008.2 994.6 DAY-HOUR 28-21 20-18 26-15 26-21 23-12 18- 9 7-15 6-15 18-12 27- 9 2-12 7- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 892.5 889.0 890.5 891.1 892.3 888.9 886.5 890.0 891.9 892.6 894.9 895.3 891.3 MAX. QFE PRESSURE IN HPA 898.7 898.2 900.4 896.8 900.1 894.3 892.9 893.0 899.1 898.2 903.7 906.9 906.9 DAY 11 13 3 30 2 7 4 4 27 16 26 12 MIN. QFE PRESSURE IN HPA 877.8 878.1 880.2 885.8 886.1 884.3 882.4 886.8 884.5 885.9 887.9 886.0 877.8 DAY 29 19 27 27 30 27 8 1 7 26 21 7 MEAN QNH PRESSURE IN HPA 1017.0 1013.1 1014.8 1015.5 1016.8 1013.0 1010.3 1014.2 1016.4 1017.2 1019.7 1020.1 1015.7 MAX. QNH PRESSURE IN HPA 1023.9 1023.3 1025.8 1021.8 1025.5 1019.0 1017.4 1017.6 1024.3 1023.3 1029.5 1033.0 1033.0 DAY 11 13 3 30 2 7 4 4 27 16 26 12 MIN. QNH PRESSURE IN HPA 1000.7 1001.0 1003.3 1009.6 1009.9 1007.9 1005.8 1010.7 1008.1 1009.7 1011.9 1009.8 1000.7 DAY 29 19 27 27 30 27 8 1 7 26 21 7 MEAN QFF PRESSURE IN HPA 1019.7 1014.7 1015.9 1013.8 1013.5 1007.0 1001.9 1006.5 1010.6 1012.6 1020.0 1022.2 1013.2 MAX. QFF PRESSURE IN HPA 1028.8 1029.0 1032.9 1024.0 1027.7 1018.3 1010.3 1010.1 1022.7 1019.8 1032.9 1041.0 1041.0 DAY 23 13 3 30 2 7 4 4 27 16 23 12 MIN. QFF PRESSURE IN HPA 1001.9 1004.1 1001.3 1003.6 1004.3 1000.4 995.7 1003.7 1001.4 1003.4 1009.9 1008.2 995.7 DAY 29 19 27 27 30 18 9 27 7 26 1 7 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 892.9 889.4 891.0 891.7 892.8 889.6 887.4 890.8 892.5 893.2 895.2 895.6 891.9 MAX. QFE PRESSURE IN HPA 899.1 897.9 900.4 897.4 900.6 894.7 893.4 894.0 899.3 898.4 903.7 906.4 906.4 DAY 19 13 3 30 2 7 4 4 27 15 26 12 MIN. QFE PRESSURE IN HPA 880.9 877.3 881.1 885.8 886.1 884.9 883.0 888.0 885.1 887.3 888.1 886.1 877.3 DAY 29 19 21 21 30 27 8 1 7 27 14 7 MEAN QNH PRESSURE IN HPA 1017.5 1013.6 1015.3 1016.1 1017.3 1013.8 1011.4 1015.2 1017.1 1017.8 1020.0 1020.4 1016.3 MAX. QNH PRESSURE IN HPA 1024.3 1023.0 1025.8 1022.5 1026.0 1019.4 1018.0 1018.7 1024.6 1023.6 1029.5 1032.5 1032.5 DAY 19 13 3 30 2 7 4 4 27 15 26 12 MIN. QNH PRESSURE IN HPA 1004.1 1000.1 1004.3 1009.6 1009.9 1008.6 1006.4 1012.0 1008.8 1011.2 1012.1 1009.9 1000.1 DAY 29 19 21 21 30 27 8 1 7 27 14 7 MEAN QFF PRESSURE IN HPA 1021.2 1016.0 1017.1 1015.0 1014.3 1008.0 1003.4 1008.0 1012.3 1014.6 1021.4 1023.5 1014.6 MAX. QFF PRESSURE IN HPA 1030.1 1029.1 1033.6 1024.7 1028.3 1018.6 1011.2 1013.0 1023.7 1021.4 1033.8 1041.6 1041.6 DAY 23 13 3 30 2 7 4 4 27 15 23 12 MIN. QFF PRESSURE IN HPA 1006.0 1003.7 1003.3 1005.5 1004.9 1000.7 996.7 1005.0 1003.0 1006.2 1011.4 1008.8 996.7 DAY 29 19 21 27 30 30 8 14 7 26 1 7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 894.1 890.2 891.8 892.3 892.9 889.8 887.8 891.2 893.0 894.0 896.0 896.4 892.4 MAX. QFE PRESSURE IN HPA 899.7 897.9 900.4 897.9 901.9 895.8 894.6 894.2 900.2 899.9 904.4 906.8 906.8 DAY 11 13 3 30 1 6 3 4 27 15 23 12 MIN. QFE PRESSURE IN HPA 884.4 876.8 882.6 885.6 886.1 885.1 883.4 888.7 886.1 886.5 888.4 887.5 876.8 DAY 29 19 21 21 30 18 8 1 7 27 14 7 MEAN QNH PRESSURE IN HPA 1018.8 1014.5 1016.2 1016.7 1017.4 1014.0 1011.7 1015.5 1017.6 1018.7 1020.9 1021.3 1016.9 MAX. QNH PRESSURE IN HPA 1025.0 1023.0 1025.8 1023.0 1027.5 1020.7 1019.3 1018.9 1025.6 1025.2 1030.2 1032.9 1032.9 DAY 11 13 3 30 1 6 3 4 27 15 23 12 MIN. QNH PRESSURE IN HPA 1008.0 999.5 1006.0 1009.3 1009.9 1008.8 1006.9 1012.8 1009.9 1010.3 1012.4 1011.4 999.5 DAY 29 19 21 21 30 18 8 1 7 27 14 7 MEAN QFF PRESSURE IN HPA 1022.2 1016.9 1017.9 1015.4 1014.2 1008.2 1003.9 1008.1 1012.3 1014.6 1021.9 1024.3 1015.0 MAX. QFF PRESSURE IN HPA 1030.8 1028.6 1032.4 1024.6 1029.6 1017.5 1012.9 1011.8 1022.8 1021.3 1034.6 1041.6 1041.6 DAY 23 13 3 30 1 6 3 4 27 15 25 12 MIN. QFF PRESSURE IN HPA 1010.3 1002.9 1004.1 1005.6 1004.6 1000.5 997.4 1004.8 1003.4 1005.2 1011.9 1010.0 997.4 DAY 29 19 26 21 30 18 8 13 7 27 1 7 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 893.1 889.6 890.9 891.7 892.3 888.9 886.8 890.1 891.9 892.8 895.1 895.3 891.5 MAX. QFE PRESSURE IN HPA 898.4 896.1 900.3 897.7 901.5 895.8 893.4 893.1 899.4 899.2 903.4 905.6 905.6 DAY 11 24 2 30 1 6 3 4 26 15 25 12 MIN. QFE PRESSURE IN HPA 884.3 876.8 880.5 885.6 886.1 883.9 882.0 887.7 886.1 884.5 887.2 886.3 876.8 DAY 28 19 26 21 30 30 8 14 7 27 21 19 MEAN QNH PRESSURE IN HPA 1017.7 1013.8 1015.3 1016.1 1016.7 1013.0 1010.7 1014.4 1016.3 1017.3 1019.9 1020.1 1015.9 MAX. QNH PRESSURE IN HPA 1023.6 1021.0 1025.7 1022.8 1027.0 1020.7 1018.0 1017.7 1024.7 1024.5 1029.1 1031.6 1031.6 DAY 11 24 2 30 1 6 3 4 26 15 25 12 MIN. QNH PRESSURE IN HPA 1007.9 999.5 1003.7 1009.3 1009.9 1007.4 1005.3 1011.7 1009.9 1008.1 1011.1 1010.1 999.5 DAY 28 19 26 21 30 30 8 14 7 27 21 19 MEAN QFF PRESSURE IN HPA 1020.3 1015.7 1016.5 1014.4 1013.1 1006.8 1002.4 1006.7 1010.5 1012.7 1020.1 1022.4 1013.5 MAX. QFF PRESSURE IN HPA 1028.2 1024.7 1031.8 1024.5 1028.8 1017.7 1011.2 1010.3 1021.3 1020.6 1032.0 1038.9 1038.9 DAY 23 28 2 29 1 6 3 4 27 15 23 12 MIN. QFF PRESSURE IN HPA 1010.2 1001.9 999.9 1005.4 1004.3 998.6 995.7 1003.2 1002.2 1001.4 1009.9 1009.1 995.7 DAY 5 19 26 21 23 18 8 14 10 27 2 19 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 892.4 888.7 890.0 891.0 891.5 888.0 885.7 889.0 890.6 891.7 894.5 894.7 890.6 MAX. QFE PRESSURE IN HPA 897.8 897.5 899.7 897.5 901.4 895.7 892.9 892.0 898.9 897.9 902.9 904.9 904.9 DAY 10 12 2 30 1 6 3 30 26 15 25 11 MIN. QFE PRESSURE IN HPA 881.4 877.7 879.7 885.0 885.6 882.7 881.1 886.6 884.6 885.0 886.9 885.9 877.7 DAY 28 19 26 5 29 30 8 6 18 27 20 6 MEAN QNH PRESSURE IN HPA 1016.9 1012.8 1014.3 1015.3 1015.9 1012.0 1009.4 1013.1 1014.9 1016.1 1019.3 1019.4 1014.9 MAX. QNH PRESSURE IN HPA 1022.9 1022.6 1025.0 1022.6 1026.9 1020.6 1017.4 1016.4 1024.1 1023.0 1028.6 1030.8 1030.8 DAY 10 12 2 30 1 6 3 30 26 15 25 11 MIN. QNH PRESSURE IN HPA 1004.7 1000.5 1002.8 1008.7 1009.3 1006.1 1004.3 1010.4 1008.2 1008.7 1010.8 1009.7 1000.5 DAY 28 19 26 5 29 30 8 6 18 27 20 6 MEAN QFF PRESSURE IN HPA 1019.4 1014.5 1015.2 1013.6 1012.4 1005.9 1001.1 1005.5 1009.2 1011.6 1019.7 1021.6 1012.5 MAX. QFF PRESSURE IN HPA 1027.2 1026.3 1031.1 1023.9 1028.8 1017.4 1010.6 1010.1 1021.4 1019.8 1030.8 1038.5 1038.5 DAY 23 12 2 29 1 6 3 30 26 15 23 12 MIN. QFF PRESSURE IN HPA 1007.5 1002.7 999.3 1004.0 1003.5 999.1 994.7 1002.1 1000.7 1003.7 1009.4 1009.2 994.7 DAY 28 19 26 26 23 18 8 6 18 27 2 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 892.8 889.3 890.4 891.2 891.7 887.9 885.4 889.1 890.8 892.0 895.2 895.1 890.9 MAX. QFE PRESSURE IN HPA 898.7 899.1 901.0 898.5 901.6 895.7 892.4 892.0 898.5 898.5 903.4 906.3 906.3 DAY 10 12 2 30 1 6 3 30 26 15 25 11 MIN. QFE PRESSURE IN HPA 879.7 878.6 878.4 884.9 885.8 882.9 880.7 886.0 884.7 885.8 887.8 885.1 878.4 DAY 28 20 26 5 30 30 8 26 6 27 20 6 MEAN QNH PRESSURE IN HPA 1017.3 1013.4 1014.7 1015.6 1016.2 1011.9 1009.1 1013.3 1015.2 1016.4 1020.0 1019.9 1015.2 MAX. QNH PRESSURE IN HPA 1023.9 1024.3 1026.5 1023.7 1027.1 1020.6 1016.9 1016.4 1023.7 1023.7 1029.1 1032.3 1032.3 DAY 10 12 2 30 1 6 3 30 26 15 25 11 MIN. QNH PRESSURE IN HPA 1002.8 1001.5 1001.3 1008.6 1009.6 1006.3 1003.9 1009.8 1008.3 1009.6 1011.8 1008.8 1001.3 DAY 28 20 26 5 30 30 8 26 6 27 20 6 MEAN QFF PRESSURE IN HPA 1020.9 1015.9 1016.4 1014.4 1013.0 1006.0 1001.2 1006.2 1010.4 1013.3 1021.4 1023.0 1013.5 MAX. QFF PRESSURE IN HPA 1028.9 1028.7 1033.0 1025.3 1029.5 1018.7 1010.3 1010.5 1022.0 1021.7 1032.8 1040.2 1040.2 DAY 22 12 2 30 1 6 3 30 26 15 25 12 MIN. QFF PRESSURE IN HPA 1005.9 1002.9 998.0 1004.0 1004.1 999.2 994.6 1002.0 1002.7 1005.2 1010.7 1009.1 994.6 DAY 28 20 26 26 30 29 7 6 6 26 1 6 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 893.1 889.8 891.1 892.1 892.5 888.9 886.5 890.1 891.8 892.7 895.6 895.5 891.6 MAX. QFE PRESSURE IN HPA 899.0 900.0 901.8 900.0 901.6 895.7 892.9 892.8 899.1 899.0 903.7 907.3 907.3 DAY 10 12 2 30 1 6 3 30 22 15 25 11 MIN. QFE PRESSURE IN HPA 879.0 877.4 878.6 886.1 886.5 883.8 882.2 887.3 884.7 885.9 889.2 885.6 877.4 DAY 28 20 26 5 29 30 7 26 6 25 20 6 MEAN QNH PRESSURE IN HPA 1017.6 1013.9 1015.4 1016.6 1017.0 1013.0 1010.4 1014.4 1016.2 1017.2 1020.5 1020.3 1016.0 MAX. QNH PRESSURE IN HPA 1024.2 1025.3 1027.3 1025.3 1027.1 1020.6 1017.4 1017.3 1024.3 1024.2 1029.5 1033.5 1033.5 DAY 10 12 2 30 1 6 3 30 22 15 25 11 MIN. QNH PRESSURE IN HPA 1002.0 1000.2 1001.5 1009.9 1010.3 1007.3 1005.6 1011.2 1008.3 1009.7 1013.3 1009.3 1000.2 DAY 28 20 26 5 29 30 7 26 6 25 20 6 MEAN QFF PRESSURE IN HPA 1021.1 1016.4 1017.1 1015.3 1013.6 1007.2 1002.5 1007.1 1011.0 1013.2 1021.6 1023.4 1014.1 MAX. QFF PRESSURE IN HPA 1029.2 1029.9 1034.1 1026.8 1029.4 1019.9 1010.9 1010.6 1021.4 1020.5 1034.0 1040.4 1040.4 DAY 22 12 2 30 1 6 3 30 26 15 25 11 MIN. QFF PRESSURE IN HPA 1004.2 1000.5 998.7 1004.6 1005.1 1001.2 996.0 1004.1 1002.0 1005.2 1011.4 1009.6 996.0 DAY 28 20 26 26 29 17 8 14 6 25 1 6 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 892.7 889.4 890.9 891.7 892.2 888.9 886.5 890.1 891.9 892.6 895.4 895.4 891.5 MAX. QFE PRESSURE IN HPA 898.8 899.7 901.0 899.4 901.2 894.8 892.5 892.7 899.1 898.8 903.7 907.0 907.0 DAY 18 12 2 30 1 6 3 30 26 15 25 11 MIN. QFE PRESSURE IN HPA 877.8 879.8 880.4 885.8 886.1 883.9 882.1 887.2 884.7 885.7 888.3 885.9 877.8 DAY 28 20 26 26 29 30 8 26 6 25 20 6 MEAN QNH PRESSURE IN HPA 1017.3 1013.6 1015.2 1016.1 1016.7 1013.0 1010.3 1014.3 1016.4 1017.2 1020.2 1020.2 1015.9 MAX. QNH PRESSURE IN HPA 1024.0 1025.0 1026.5 1024.7 1026.7 1019.6 1017.0 1017.2 1024.3 1024.0 1029.5 1033.1 1033.1 DAY 18 12 2 30 1 6 3 30 26 15 25 11 MIN. QNH PRESSURE IN HPA 1000.7 1002.9 1003.5 1009.6 1009.9 1007.4 1005.4 1011.1 1008.3 1009.4 1012.3 1009.7 1000.7 DAY 28 20 26 26 29 30 8 26 6 25 20 6 MEAN QFF PRESSURE IN HPA 1019.8 1015.5 1016.4 1014.4 1012.9 1006.9 1002.0 1006.6 1010.6 1012.5 1020.6 1022.6 1013.4 MAX. QFF PRESSURE IN HPA 1028.4 1030.2 1033.3 1025.6 1028.6 1018.9 1010.0 1010.2 1021.5 1020.0 1031.9 1040.1 1040.1 DAY 18 12 2 30 1 6 3 30 26 15 22 11 MIN. QFF PRESSURE IN HPA 1000.7 1004.2 1000.8 1003.2 1004.1 1000.5 995.4 1003.2 1001.6 1003.2 1010.5 1008.6 995.4 DAY 28 20 26 26 29 17 8 14 6 26 1 6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.2 5.3 7.4 10.6 17.4 22.9 23.0 24.8 19.9 12.9 9.3 1.0 13.1 MINIMUN AIR TEMPERATURE (C) -0.9 -0.2 2.2 4.9 10.9 14.8 17.1 17.0 12.7 5.9 4.5 -2.5 7.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 2 0 0 0 0 2 DAYS WITH MINIMUM TEMP. <=-4 5 3 0 0 0 0 0 0 0 0 1 9 18 DAYS WITH FREEZING MIN.<= 0 20 19 10 2 0 0 0 0 0 1 5 24 81 TEMPERATURE RECORDS LOWEST(C) -7.8 -5.0 -3.8 -0.2 5.4 10.2 12.6 12.4 6.4 0.0 -6.2 -8.6 -8.6 DAY 1 1 18 6 7 1 13 22 26 9 29 30 MAXIMUM AIR TEMPERATURE (C) 8.8 12.4 13.8 17.1 24.8 30.5 29.7 32.7 27.7 21.4 15.2 5.9 20.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 19 17 28 7 0 0 0 73 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 1 1 TEMPERATURE RECORDS HIGHEST(C) 15.2 23.4 25.6 28.4 30.2 35.0 36.2 39.6 34.4 28.4 24.0 13.2 39.6 DAY 14 15 6 23 13 25 23 12 10 3 3 12 DIF. BETWEEN (MAX.-MIN.) (C) 9.7 12.6 11.6 12.2 13.9 15.7 12.6 15.7 15.0 15.5 10.7 8.4 12.8 MEAN DAILY TEMP. (MDT) (C) 4.0 6.1 8.0 11.0 17.9 22.6 23.4 24.8 20.2 13.6 9.9 1.7 13.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 3.5 59.5 81.2 118.5 23.2 0.0 0.0 0.0 285.9 HEATING DEG. DAYS(BASE 18 0C) 434.7 346.7 312.9 213.8 33.0 1.7 0.9 0.0 4.7 136.7 244.0 505.2 2234.3 DEWPOINT (MEAN C) -0.7 -1.6 2.0 3.8 9.5 7.1 12.5 8.3 7.8 2.4 3.0 -2.1 4.3 MIXING RATIO (G/KG) 4.16 3.88 5.04 5.84 8.61 7.61 10.63 8.26 8.01 5.42 5.59 3.74 6.40 VAPOUR PRESSURE (HPA) 5.90 5.52 7.18 8.28 12.12 10.73 14.92 11.61 11.34 7.74 7.95 5.33 9.05 SATURATION DEF. (HPA) 2.11 4.07 4.24 5.46 8.69 18.68 14.03 21.03 13.07 8.13 4.45 1.40 8.78 RELATIVE HUMIDITY (MEAN %) 78 66 74 68 64 43 56 39 50 54 70 82 62 RELATIVE HUMIDITY (MAX. %) 93 88 90 89 87 67 78 62 76 78 89 92 82 RELATIVE HUMIDITY (MIN. %) 59 41 54 47 40 25 35 21 31 33 50 65 42 RELATIVE HUMIDITY (MEAN% 03UTC) 89 83 88 85 80 57 73 57 71 73 82 90 77 RELATIVE HUMIDITY (MEAN% 09UTC) 66 49 62 57 46 29 42 24 35 37 56 71 48 RELATIVE HUMIDITY (MEAN% 15UTC) 73 57 70 57 56 32 44 29 39 46 65 81 54 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 17.6 11.1 29.9 86.8 17.3 1.2 43.4 0.0 0.0 6.4 39.0 34.7 287.4 DAYS WITH PRECIPITATION >=10 0 0 2 4 0 0 1 0 0 0 2 0 9 DAYS WITH PRECIPITATION >= 5 2 0 3 4 1 0 3 0 0 0 4 2 19 DAYS WITH PRECIPITATION >= 1 3 5 4 7 4 1 5 0 0 3 4 8 44 DAYS WITH PRECIPITATION 9 8 8 12 10 3 8 1 0 5 11 14 89 GREATEST DAILY PRECIPITATION 7.4 3.0 11.0 28.1 8.0 1.0 25.2 0.0 0.0 3.0 12.3 7.2 28.1 DAY 19 7 14 5 5 30 25 ** ** 6 19 26 DAY WITH THUNDER STORM 0 2 1 4 4 1 1 1 0 1 5 0 20 DAYS WITH SNOW OR SLEET 4 3 5 4 0 0 0 0 0 0 2 13 31 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 12.1 11.7 11.1 10.1 10.8 12.0 11.2 9.2 10.7 9.7 10.4 11.0 10.8 PREVAILING WIND PERCENT 13.3 20.3 25.8 30.4 31.5 34.2 39.5 22.6 27.5 16.5 13.8 14.1 24.1 CALMS PERCENT OF WIND 73.8 63.4 66.1 56.7 55.2 45.8 40.7 56.5 59.2 76.2 73.3 80.2 62.3 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 231 246 272 270 282 286 288 296 285 278 249 278 277 VECTOR WIND MAGNITUDE(KNOTS) 1.4 2.0 2.6 2.9 3.4 4.1 5.7 2.3 3.8 2.1 1.5 1.7 2.7 WIND STEADINESES (MEAN %) 43.7 46.5 72.2 67.4 73.9 70.7 90.5 60.5 90.5 91.3 51.7 85.0 69.2 WIND SPEED (MEAN KNOTS) 3.2 4.3 3.6 4.3 4.6 5.8 6.3 3.8 4.2 2.3 2.9 2.0 3.9 FASTEST WIND DIRECTION 270 280 170 270 280 270 150 270 280 270 270 280 280 FASTEST WIND SPEED (KNOTS) 33 39 29 29 49 29 35 17 23 27 33 25 49 DAY 27 23 6 1 13 30 26 4 13 23 28 26 DAYS WITH SKY CLEAR (0-2)/8 11 12 8 10 13 25 19 29 25 24 12 10 198 DAYS WITH P.CLOUDY (3-6)/8 11 14 11 9 11 4 11 2 5 4 11 11 104 DAYS WITH CLOUDY (7-8)/8 9 3 12 11 7 1 1 0 0 3 7 10 64 DAYS WITH VISIBILITY =< 2 KM 6 2 4 3 3 1 0 0 0 1 6 4 30 DURATION OF SUNSHINE HOURS 127.3 193.9 146.8 203.9 258.0 339.6 302.8 359.4 293.9 263.1 160.7 110.3 2759.7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 889.7 891.0 893.9 890.6 888.6 888.9 888.9 888.2 893.3 896.1 893.0 893.5 891.3 MAX. QFE PRESSURE IN HPA 897.8 896.5 905.4 898.6 896.9 897.7 895.2 893.2 898.9 902.4 899.7 904.3 905.4 DAY-HOUR 12- 6 13- 6 8-15 11- 6 22- 3 6- 3 6- 3 17- 6 21- 6 14-18 28-21 3- 6 MIN. QFE PRESSURE IN HPA 880.1 876.8 884.1 879.5 878.5 881.9 883.7 879.6 885.9 888.6 879.5 884.1 876.8 DAY-HOUR 23-12 15-15 30-21 17-12 13- 9 17-15 11- 3 12-15 10-15 22- 9 23-18 10- 0 MEAN QNH PRESSURE IN HPA 1013.9 1015.3 1018.5 1014.9 1012.6 1013.0 1013.0 1012.2 1017.9 1021.0 1017.6 1018.2 1015.7 MAX. QNH PRESSURE IN HPA 1022.9 1021.5 1031.3 1023.8 1021.9 1022.8 1020.0 1017.8 1024.1 1028.0 1025.0 1030.1 1031.3 DAY-HOUR 12- 6 13- 6 8-15 11- 6 22- 3 6- 3 6- 3 17- 6 21- 6 14-18 28-21 3- 6 MIN. QNH PRESSURE IN HPA 1003.2 999.5 1007.7 1002.6 1001.4 1005.2 1007.2 1002.7 1009.7 1012.7 1002.6 1007.7 999.5 DAY-HOUR 23-12 15-15 30-21 17-12 13- 9 17-15 11- 3 12-15 10-15 22- 9 23-18 10- 0 MEAN QFF PRESSURE IN HPA 1016.0 1016.5 1018.7 1013.4 1007.9 1006.0 1005.7 1004.4 1012.2 1018.6 1016.7 1021.5 1013.1 MAX. QFF PRESSURE IN HPA 1028.1 1023.5 1033.8 1024.7 1020.1 1017.8 1012.5 1011.2 1020.2 1028.3 1030.3 1035.3 1035.3 DAY-HOUR 1- 6 5- 6 9- 3 5-18 22- 3 13- 9 6- 3 18- 6 27- 3 15- 3 29- 0 3- 6 MIN. QFF PRESSURE IN HPA 1003.2 994.1 1002.1 998.5 994.1 997.2 999.1 993.4 1002.4 1007.2 999.0 1009.1 993.4 DAY-HOUR 14-12 15-15 31- 0 24- 0 13- 9 17-15 23-12 12-15 10-12 22- 9 23-18 10- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 889.7 890.7 893.6 890.3 888.6 888.9 888.9 888.1 893.3 896.1 893.0 893.5 891.2 MAX. QFE PRESSURE IN HPA 897.2 895.3 904.6 897.7 895.9 895.9 893.6 891.8 897.8 902.4 899.6 902.4 904.6 DAY 1 13 9 11 22 6 6 18 21 15 29 4 MIN. QFE PRESSURE IN HPA 881.2 880.6 884.1 881.1 880.6 884.4 883.9 881.8 887.3 889.1 883.0 884.1 880.6 DAY 24 16 31 17 13 10 11 13 11 22 28 10 MEAN QNH PRESSURE IN HPA 1013.9 1015.1 1018.2 1014.6 1012.6 1013.0 1013.1 1012.1 1017.8 1021.0 1017.5 1018.1 1015.6 MAX. QNH PRESSURE IN HPA 1022.2 1020.1 1030.5 1022.8 1020.8 1020.8 1018.2 1016.2 1022.9 1028.0 1024.9 1028.0 1030.5 DAY 1 13 9 11 22 6 6 18 21 15 29 4 MIN. QNH PRESSURE IN HPA 1004.4 1003.8 1007.7 1004.3 1003.8 1008.0 1007.4 1005.1 1011.2 1013.2 1006.4 1007.7 1003.8 DAY 24 16 31 17 13 10 11 13 11 22 28 10 MEAN QFF PRESSURE IN HPA 1015.7 1015.8 1018.0 1012.9 1007.8 1006.0 1005.6 1004.0 1011.8 1018.1 1016.2 1021.0 1012.8 MAX. QFF PRESSURE IN HPA 1027.9 1021.6 1033.3 1023.5 1019.7 1016.4 1010.7 1009.2 1018.2 1027.8 1030.3 1033.4 1033.4 DAY 1 4 9 6 22 14 8 18 26 15 29 4 MIN. QFF PRESSURE IN HPA 1004.4 1000.7 1002.1 998.5 996.6 999.3 1001.0 994.1 1003.8 1007.9 1004.0 1009.1 994.1 DAY 24 15 31 24 13 18 11 13 11 22 24 10 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 889.9 891.3 894.1 891.1 889.1 889.9 889.6 889.2 894.1 896.5 893.2 893.7 891.8 MAX. QFE PRESSURE IN HPA 897.4 895.9 905.0 898.2 896.9 897.7 895.2 892.8 898.3 902.2 899.0 903.4 905.0 DAY 11 13 9 11 22 6 6 18 21 15 13 3 MIN. QFE PRESSURE IN HPA 882.3 882.3 886.3 882.0 881.1 885.9 883.7 882.8 888.3 889.5 884.8 885.7 881.1 DAY 14 15 31 17 13 18 11 4 6 22 24 10 MEAN QNH PRESSURE IN HPA 1014.1 1015.7 1018.8 1015.4 1013.2 1014.1 1013.7 1013.3 1018.7 1021.4 1017.8 1018.4 1016.2 MAX. QNH PRESSURE IN HPA 1022.5 1020.8 1030.9 1023.3 1021.9 1022.8 1020.0 1017.3 1023.5 1027.8 1024.2 1029.1 1030.9 DAY 11 13 9 11 22 6 6 18 21 15 13 3 MIN. QNH PRESSURE IN HPA 1005.7 1005.7 1010.1 1005.3 1004.3 1009.7 1007.2 1006.2 1012.3 1013.7 1008.4 1009.4 1004.3 DAY 14 15 31 17 13 18 11 4 6 22 24 10 MEAN QFF PRESSURE IN HPA 1016.7 1017.6 1019.6 1014.4 1008.7 1007.2 1006.7 1005.7 1013.7 1020.1 1017.5 1022.3 1014.2 MAX. QFF PRESSURE IN HPA 1028.0 1023.1 1033.8 1023.5 1020.1 1017.4 1012.5 1010.7 1020.2 1028.3 1029.6 1034.6 1034.6 DAY 1 5 9 6 22 6 6 18 27 15 29 3 MIN. QFF PRESSURE IN HPA 1003.6 1000.9 1006.7 1000.4 998.3 1000.8 1001.8 997.9 1005.5 1011.0 1005.0 1011.8 997.9 DAY 14 15 31 24 13 18 11 12 11 22 18 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 890.5 892.1 894.9 891.6 889.2 890.0 889.6 889.5 894.6 897.2 894.1 894.6 892.3 MAX. QFE PRESSURE IN HPA 897.8 896.5 905.1 898.6 896.4 897.2 894.6 893.2 898.9 902.4 899.6 904.3 905.1 DAY 12 13 9 11 22 6 6 17 21 27 13 3 MIN. QFE PRESSURE IN HPA 882.4 882.2 886.9 882.3 881.0 885.7 884.8 883.0 889.8 890.3 884.9 888.1 881.0 DAY 14 15 31 17 13 17 11 12 6 22 23 15 MEAN QNH PRESSURE IN HPA 1014.8 1016.6 1019.6 1016.0 1013.3 1014.2 1013.8 1013.6 1019.4 1022.3 1018.8 1019.3 1016.8 MAX. QNH PRESSURE IN HPA 1022.9 1021.5 1031.0 1023.8 1021.3 1022.2 1019.3 1017.8 1024.1 1028.0 1024.9 1030.1 1031.0 DAY 12 13 9 11 22 6 6 17 21 27 13 3 MIN. QNH PRESSURE IN HPA 1005.8 1005.6 1010.8 1005.7 1004.2 1009.4 1008.4 1006.4 1014.0 1014.6 1008.6 1012.1 1004.2 DAY 14 15 31 17 13 17 11 12 6 22 23 15 MEAN QFF PRESSURE IN HPA 1017.3 1018.2 1020.0 1014.9 1008.7 1007.4 1006.7 1005.9 1013.8 1020.0 1018.1 1022.9 1014.5 MAX. QFF PRESSURE IN HPA 1028.1 1023.5 1033.7 1023.1 1018.7 1017.5 1012.2 1011.2 1019.7 1027.1 1028.6 1035.3 1035.3 DAY 1 5 9 6 22 13 6 18 27 15 30 3 MIN. QFF PRESSURE IN HPA 1003.7 1000.5 1007.6 1001.6 997.5 1002.0 1001.9 998.1 1006.9 1010.3 1004.7 1014.4 997.5 DAY 14 15 31 24 13 10 10 12 6 22 18 10 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 889.7 891.3 894.2 890.7 888.3 889.0 888.7 888.4 893.3 895.9 892.9 893.5 891.3 MAX. QFE PRESSURE IN HPA 896.4 894.9 904.4 896.8 894.7 896.8 893.3 892.2 897.8 901.3 899.2 904.3 904.4 DAY 12 10 9 12 22 13 6 17 21 27 30 3 MIN. QFE PRESSURE IN HPA 881.7 880.6 886.4 881.3 878.5 884.1 884.5 881.4 888.0 888.6 882.4 886.2 878.5 DAY 23 15 31 17 13 17 10 12 10 22 23 15 MEAN QNH PRESSURE IN HPA 1013.9 1015.7 1018.9 1015.0 1012.3 1013.1 1012.8 1012.5 1017.9 1020.8 1017.4 1018.1 1015.7 MAX. QNH PRESSURE IN HPA 1021.3 1019.7 1030.2 1021.8 1019.4 1021.8 1017.9 1016.7 1022.9 1026.8 1024.5 1030.1 1030.2 DAY 12 10 9 12 22 13 6 17 21 27 30 3 MIN. QNH PRESSURE IN HPA 1005.0 1003.8 1010.2 1004.5 1001.4 1007.7 1008.1 1004.7 1012.0 1012.7 1005.8 1010.0 1001.4 DAY 23 15 31 17 13 17 10 12 10 22 23 15 MEAN QFF PRESSURE IN HPA 1015.7 1016.5 1018.7 1013.3 1007.3 1006.0 1005.4 1004.4 1011.8 1017.8 1016.2 1021.1 1012.8 MAX. QFF PRESSURE IN HPA 1026.0 1022.1 1032.3 1021.8 1016.0 1017.8 1010.7 1008.9 1017.8 1025.3 1026.9 1034.7 1034.7 DAY 1 4 9 6 22 13 6 30 21 27 30 3 MIN. QFF PRESSURE IN HPA 1003.4 998.2 1007.1 1002.8 994.1 999.8 999.9 995.4 1004.1 1007.2 1002.2 1011.6 994.1 DAY 14 15 30 17 13 17 23 12 10 22 23 12 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 889.0 890.1 893.2 889.6 887.5 887.8 887.9 887.2 892.2 895.1 892.0 892.7 890.4 MAX. QFE PRESSURE IN HPA 895.9 893.9 903.9 895.8 894.5 895.4 892.8 891.4 896.4 901.1 898.4 903.4 903.9 DAY 12 25 8 28 21 13 7 17 21 14 30 3 MIN. QFE PRESSURE IN HPA 880.1 877.8 885.1 879.5 879.4 882.4 884.0 879.7 886.3 888.7 879.9 885.8 877.8 DAY 23 15 30 17 16 17 23 12 10 3 23 12 MEAN QNH PRESSURE IN HPA 1013.1 1014.4 1017.7 1013.8 1011.4 1011.7 1011.9 1011.1 1016.7 1019.9 1016.5 1017.2 1014.6 MAX. QNH PRESSURE IN HPA 1020.8 1018.6 1029.7 1020.7 1019.2 1020.2 1017.3 1015.8 1021.3 1026.6 1023.6 1029.1 1029.7 DAY 12 25 8 28 21 13 7 17 21 14 30 3 MIN. QNH PRESSURE IN HPA 1003.2 1000.7 1008.8 1002.6 1002.4 1005.8 1007.6 1002.8 1010.1 1012.8 1003.0 1009.6 1000.7 DAY 23 15 30 17 16 17 23 12 10 3 23 12 MEAN QFF PRESSURE IN HPA 1014.8 1015.0 1017.5 1012.0 1006.5 1004.7 1004.5 1003.1 1010.7 1017.1 1015.3 1020.1 1011.8 MAX. QFF PRESSURE IN HPA 1023.8 1020.6 1031.5 1022.2 1016.5 1016.0 1010.8 1008.3 1016.2 1024.4 1025.9 1033.6 1033.6 DAY 1 25 8 5 21 13 7 30 21 27 30 3 MIN. QFF PRESSURE IN HPA 1003.2 994.9 1004.6 1001.2 996.9 998.2 999.1 993.4 1002.4 1007.6 999.3 1009.6 993.4 DAY 14 15 30 17 12 17 23 12 10 3 23 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 889.4 890.4 893.4 889.9 888.0 887.8 888.1 887.1 892.3 895.6 892.7 893.2 890.7 MAX. QFE PRESSURE IN HPA 896.1 894.4 905.4 896.9 895.4 895.1 893.1 891.7 896.9 901.9 898.3 903.6 905.4 DAY 12 27 8 11 21 13 7 17 29 14 30 3 MIN. QFE PRESSURE IN HPA 880.1 876.8 884.3 881.5 880.3 881.9 885.5 879.6 885.9 888.9 879.9 886.5 876.8 DAY 23 15 30 17 15 17 10 12 10 3 23 15 MEAN QNH PRESSURE IN HPA 1013.6 1014.7 1018.1 1014.1 1012.0 1011.8 1012.1 1011.0 1016.8 1020.5 1017.2 1017.8 1015.0 MAX. QNH PRESSURE IN HPA 1021.0 1019.1 1031.3 1021.9 1020.2 1019.9 1017.7 1016.1 1021.9 1027.5 1023.5 1029.3 1031.3 DAY 12 27 8 11 21 13 7 17 29 14 30 3 MIN. QNH PRESSURE IN HPA 1003.2 999.5 1007.9 1004.8 1003.4 1005.2 1009.2 1002.7 1009.7 1013.0 1003.0 1010.3 999.5 DAY 23 15 30 17 15 17 10 12 10 3 23 15 MEAN QFF PRESSURE IN HPA 1016.1 1016.5 1018.8 1013.0 1007.5 1004.9 1005.1 1003.4 1011.7 1019.1 1017.0 1021.7 1012.9 MAX. QFF PRESSURE IN HPA 1025.4 1022.0 1033.6 1023.2 1017.5 1015.8 1012.1 1009.3 1018.3 1026.1 1027.6 1035.0 1035.0 DAY 1 25 8 5 21 13 7 30 29 14 30 3 MIN. QFF PRESSURE IN HPA 1005.3 994.1 1004.8 1000.2 997.7 997.2 1001.5 993.4 1003.2 1009.8 1000.2 1011.9 993.4 DAY 23 15 30 23 12 17 24 12 10 3 23 12 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 889.9 891.0 894.1 890.8 889.2 889.2 889.3 888.3 893.4 896.2 893.2 893.7 891.5 MAX. QFE PRESSURE IN HPA 896.6 895.4 905.4 897.1 896.2 896.4 893.6 892.3 897.6 902.4 899.4 903.7 905.4 DAY 11 29 8 10 21 5 7 17 20 14 28 3 MIN. QFE PRESSURE IN HPA 880.3 877.3 884.8 882.3 881.1 883.4 886.3 881.1 886.8 889.2 879.5 887.3 877.3 DAY 23 15 30 15 15 17 13 12 10 21 23 9 MEAN QNH PRESSURE IN HPA 1014.1 1015.4 1018.8 1015.1 1013.3 1013.3 1013.4 1012.3 1018.0 1021.2 1017.7 1018.3 1015.9 MAX. QNH PRESSURE IN HPA 1021.6 1020.2 1031.3 1022.1 1021.1 1021.3 1018.2 1016.8 1022.7 1028.0 1024.7 1029.5 1031.3 DAY 11 29 8 10 21 5 7 17 20 14 28 3 MIN. QNH PRESSURE IN HPA 1003.4 1000.1 1008.4 1005.7 1004.3 1006.9 1010.1 1004.3 1010.7 1013.3 1002.6 1011.2 1000.1 DAY 23 15 30 15 15 17 13 12 10 21 23 9 MEAN QFF PRESSURE IN HPA 1016.6 1016.9 1019.2 1013.9 1008.6 1006.4 1006.3 1004.6 1012.5 1018.9 1017.2 1021.9 1013.6 MAX. QFF PRESSURE IN HPA 1024.7 1022.3 1033.8 1024.7 1018.6 1017.6 1012.3 1009.7 1018.5 1027.0 1028.4 1034.6 1034.6 DAY 1 4 8 5 21 13 7 17 29 14 28 3 MIN. QFF PRESSURE IN HPA 1003.9 995.8 1004.5 1001.0 998.3 998.7 1003.3 994.0 1003.8 1010.0 999.0 1013.9 994.0 DAY 23 15 30 23 12 17 9 12 10 2 23 9 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 889.7 890.9 893.7 890.7 889.0 889.0 888.9 888.2 893.4 896.2 893.0 893.6 891.4 MAX. QFE PRESSURE IN HPA 896.9 895.4 905.2 897.9 896.2 895.9 893.2 892.2 897.5 902.4 899.7 902.8 905.2 DAY 11 9 8 10 21 5 7 17 20 14 28 3 MIN. QFE PRESSURE IN HPA 880.6 877.8 884.1 882.8 880.6 884.1 886.1 881.3 886.8 889.2 880.9 885.1 877.8 DAY 23 15 30 17 12 17 9 12 10 21 23 9 MEAN QNH PRESSURE IN HPA 1013.9 1015.3 1018.4 1015.0 1013.1 1013.1 1013.0 1012.2 1018.0 1021.1 1017.6 1018.2 1015.7 MAX. QNH PRESSURE IN HPA 1021.9 1020.2 1031.1 1023.0 1021.1 1020.8 1017.8 1016.7 1022.6 1028.0 1025.0 1028.5 1031.1 DAY 11 9 8 10 21 5 7 17 20 14 28 3 MIN. QNH PRESSURE IN HPA 1003.8 1000.7 1007.7 1006.2 1003.8 1007.7 1009.9 1004.5 1010.7 1013.3 1004.1 1008.8 1000.7 DAY 23 15 30 17 12 17 9 12 10 21 23 9 MEAN QFF PRESSURE IN HPA 1015.7 1016.0 1018.2 1013.2 1008.0 1005.9 1005.6 1004.1 1011.9 1018.1 1016.4 1021.2 1012.9 MAX. QFF PRESSURE IN HPA 1024.7 1022.0 1033.7 1024.3 1019.2 1017.4 1011.5 1009.1 1017.9 1027.4 1029.6 1033.5 1033.7 DAY 29 4 8 5 21 13 7 17 25 14 28 3 MIN. QFF PRESSURE IN HPA 1003.3 997.6 1002.6 999.3 996.3 998.7 1001.5 993.7 1003.0 1008.1 1000.0 1010.4 993.7 DAY 23 15 30 23 12 17 23 12 10 21 23 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.6 1.0 7.6 12.7 17.0 21.9 26.1 23.5 21.7 14.8 6.3 4.7 13.2 MINIMUN AIR TEMPERATURE (C) -2.8 -3.2 2.8 6.2 10.5 15.4 18.9 16.8 13.9 8.4 1.3 0.6 7.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 4 2 0 0 0 0 6 DAYS WITH MINIMUM TEMP. <=-4 11 10 1 0 0 0 0 0 0 0 2 4 28 DAYS WITH FREEZING MIN.<= 0 22 23 5 5 0 0 0 0 0 0 10 15 80 TEMPERATURE RECORDS LOWEST(C) -10.4 -8.8 -5.2 -2.0 4.0 10.4 15.6 12.4 9.6 1.6 -4.4 -7.6 -10.4 DAY 15 17 27 6 8 11 26 20 30 27 28 31 MAXIMUM AIR TEMPERATURE (C) 5.7 6.8 14.1 20.2 23.9 28.6 33.3 30.1 30.1 22.5 13.4 10.6 19.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 11 27 18 15 1 0 0 72 DAYS WITH MAXIMUM TEMP. <= 0 1 4 0 0 0 0 0 0 0 0 0 0 5 TEMPERATURE RECORDS HIGHEST(C) 13.2 16.8 22.2 28.2 28.6 37.0 39.6 36.0 35.4 30.0 21.6 17.8 39.6 DAY 3 28 31 20 26 20 17 5 3 20 3 17 DIF. BETWEEN (MAX.-MIN.) (C) 8.5 10.0 11.3 14.0 13.4 13.2 14.4 13.3 16.2 14.1 12.1 10.0 12.5 MEAN DAILY TEMP. (MDT) (C) 1.5 1.8 8.4 13.2 17.2 22.0 26.1 23.4 22.0 15.5 7.3 5.6 13.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.1 48.5 157.1 78.3 32.9 0.0 0.0 0.0 316.9 HEATING DEG. DAYS(BASE 18 0C) 512.7 453.5 297.0 149.6 38.9 1.8 0.0 0.0 0.0 87.4 319.8 385.1 2245.8 DEWPOINT (MEAN C) -2.1 -3.7 2.0 4.4 9.8 13.6 16.2 10.1 9.5 6.4 1.3 0.1 5.6 MIXING RATIO (G/KG) 3.73 3.36 5.16 6.14 8.73 11.25 13.71 9.18 8.77 7.04 4.82 4.50 7.20 VAPOUR PRESSURE (HPA) 5.32 4.79 7.31 8.72 12.31 15.77 19.12 12.91 12.37 10.01 6.89 6.42 10.16 SATURATION DEF. (HPA) 1.29 2.21 3.83 7.46 7.83 11.72 16.01 17.17 14.83 7.81 3.23 2.59 8.00 RELATIVE HUMIDITY (MEAN %) 83 75 73 62 67 63 58 47 50 62 73 76 66 RELATIVE HUMIDITY (MAX. %) 95 91 91 86 91 87 82 70 75 85 91 91 86 RELATIVE HUMIDITY (MIN. %) 67 54 49 38 42 43 41 28 29 37 50 58 45 RELATIVE HUMIDITY (MEAN% 03UTC) 89 87 88 81 82 83 73 65 68 81 88 86 81 RELATIVE HUMIDITY (MEAN% 09UTC) 76 61 57 42 47 48 45 32 33 43 56 65 50 RELATIVE HUMIDITY (MEAN% 15UTC) 82 70 65 52 60 48 49 35 39 55 69 75 58 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 45.2 18.7 71.5 15.1 62.5 24.3 9.0 10.2 0.0 24.4 50.5 34.2 365.6 DAYS WITH PRECIPITATION >=10 0 1 2 0 2 1 0 0 0 0 1 1 8 DAYS WITH PRECIPITATION >= 5 5 1 5 0 5 1 1 1 0 3 3 3 28 DAYS WITH PRECIPITATION >= 1 10 3 10 5 10 3 1 2 0 3 7 4 58 DAYS WITH PRECIPITATION 14 13 13 8 15 4 2 3 0 5 12 10 99 GREATEST DAILY PRECIPITATION 8.0 13.0 25.4 3.6 21.0 21.0 9.0 7.1 0.0 9.0 24.0 15.0 25.4 DAY 23 22 13 5 31 9 30 10 ** 9 9 26 DAY WITH THUNDER STORM 0 0 2 4 14 8 2 1 1 2 1 0 35 DAYS WITH SNOW OR SLEET 9 13 5 2 0 0 0 0 0 0 0 3 32 DAYS WITH DUST 0 0 0 0 0 0 0 1 0 0 0 0 1 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 8.6 8.5 10.4 10.4 10.7 11.4 11.3 9.4 11.3 10.9 9.7 9.3 10.3 PREVAILING WIND PERCENT 12.5 21.4 22.6 23.8 21.4 36.3 27.0 26.6 29.2 30.6 16.3 21.4 24.1 CALMS PERCENT OF WIND 76.6 67.9 64.5 67.1 57.7 50.0 46.0 52.8 60.4 60.1 75.8 66.1 62.0 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 255 273 264 281 295 283 299 294 283 272 274 246 281 VECTOR WIND MAGNITUDE(KNOTS) 0.8 1.8 2.5 2.5 2.1 4.7 4.0 3.8 3.5 3.3 1.7 1.8 2.6 WIND STEADINESES (MEAN %) 38.1 66.7 71.4 75.8 50.0 87.0 69.0 84.4 85.4 78.6 77.3 54.5 68.4 WIND SPEED (MEAN KNOTS) 2.1 2.7 3.5 3.3 4.2 5.4 5.8 4.5 4.1 4.2 2.2 3.3 3.8 FASTEST WIND DIRECTION 260 260 150 270 350 270 270 80 290 180 280 270 350 FASTEST WIND SPEED (KNOTS) 27 25 29 29 35 29 33 23 27 27 33 27 35 DAY 3 1 10 2 4 22 30 9 6 20 9 26 DAYS WITH SKY CLEAR (0-2)/8 11 11 7 13 6 19 26 21 27 22 16 13 192 DAYS WITH P.CLOUDY (3-6)/8 9 10 12 10 22 7 5 10 3 8 9 11 116 DAYS WITH CLOUDY (7-8)/8 11 7 12 7 3 4 0 0 0 1 5 7 57 DAYS WITH VISIBILITY =< 2 KM 5 1 5 2 1 0 1 0 0 1 3 10 29 DURATION OF SUNSHINE HOURS 121.8 172.0 187.8 243.6 272.2 311.0 339.1 335.6 305.1 261.4 195.7 148.0 2893.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 891.7 891.5 889.4 892.9 890.9 888.7 887.9 889.0 891.1 895.2 895.9 895.6 891.7 MAX. QFE PRESSURE IN HPA 900.7 900.7 895.8 905.3 897.1 893.7 892.4 894.4 896.3 903.0 902.3 905.7 905.7 DAY-HOUR 8- 6 17- 6 16- 6 6- 6 11-18 8-18 9- 3 27- 3 9- 6 23-18 25- 6 29- 6 MIN. QFE PRESSURE IN HPA 876.0 881.0 880.5 883.5 880.9 877.8 879.5 882.4 885.4 885.2 888.2 882.7 876.0 DAY-HOUR 23- 9 2- 0 24- 3 27-12 3-15 20-15 6-12 8-12 12-12 20-12 9- 0 24- 0 MEAN QNH PRESSURE IN HPA 1016.1 1015.9 1013.6 1017.4 1015.2 1012.8 1011.9 1013.1 1015.5 1020.1 1020.8 1020.5 1016.1 MAX. QNH PRESSURE IN HPA 1026.1 1026.1 1020.7 1031.2 1022.1 1018.3 1016.9 1019.1 1021.2 1028.7 1027.9 1031.7 1031.7 DAY-HOUR 8- 6 17- 6 16- 6 6- 6 11-18 8-18 9- 3 27- 3 9- 6 23-18 25- 6 29- 6 MIN. QNH PRESSURE IN HPA 998.7 1004.2 1003.7 1007.0 1004.1 1000.7 1002.6 1005.8 1009.1 1008.9 1012.2 1006.1 998.7 DAY-HOUR 23- 9 2- 0 24- 3 27-12 3-15 20-15 6-12 8-12 12-12 20-12 9- 0 24- 0 MEAN QFF PRESSURE IN HPA 1019.6 1019.2 1013.5 1015.1 1010.7 1006.0 1003.2 1005.7 1008.9 1016.7 1021.5 1022.0 1013.5 MAX. QFF PRESSURE IN HPA 1029.6 1032.5 1025.2 1035.4 1018.9 1014.7 1009.5 1013.6 1015.3 1028.9 1030.9 1036.9 1036.9 DAY-HOUR 9-18 17- 3 26-18 6- 6 11-18 8-18 8- 6 27- 3 9- 3 23-18 27- 6 29- 3 MIN. QFF PRESSURE IN HPA 999.4 1003.2 1002.3 1002.3 998.5 991.8 992.1 996.0 1001.9 1003.0 1010.3 1003.5 991.8 DAY-HOUR 23- 9 2- 0 24- 0 27-12 4-12 20-15 6-15 8-12 4-12 20-21 6- 0 24- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 891.8 891.3 889.2 892.7 890.8 888.9 888.0 888.9 891.3 895.3 895.9 895.4 891.6 MAX. QFE PRESSURE IN HPA 899.7 900.1 894.6 904.1 896.7 892.9 891.6 893.7 895.2 901.5 901.3 904.9 904.9 DAY 8 17 16 6 19 9 9 27 9 24 24 29 MIN. QFE PRESSURE IN HPA 881.6 881.0 881.1 886.5 881.6 879.8 880.5 883.5 886.0 887.1 888.2 882.7 879.8 DAY 24 2 24 30 6 21 6 8 5 21 9 24 MEAN QNH PRESSURE IN HPA 1016.2 1015.7 1013.3 1017.2 1015.2 1013.0 1012.1 1013.0 1015.6 1020.1 1020.8 1020.2 1016.0 MAX. QNH PRESSURE IN HPA 1025.0 1025.5 1019.3 1029.9 1021.7 1017.4 1016.0 1018.3 1020.0 1027.0 1026.8 1030.8 1030.8 DAY 8 17 16 6 19 9 9 27 9 24 24 29 MIN. QNH PRESSURE IN HPA 1004.9 1004.2 1004.3 1010.3 1004.9 1002.9 1003.7 1007.0 1009.8 1011.0 1012.2 1006.1 1002.9 DAY 24 2 24 30 6 21 6 8 5 21 9 24 MEAN QFF PRESSURE IN HPA 1019.2 1018.6 1013.0 1014.7 1010.7 1006.1 1003.3 1005.4 1008.8 1016.2 1021.1 1021.2 1013.2 MAX. QFF PRESSURE IN HPA 1028.3 1030.8 1023.9 1034.2 1018.5 1013.4 1007.7 1012.1 1013.4 1027.5 1028.0 1036.1 1036.1 DAY 8 17 27 6 19 9 9 27 10 24 25 29 MIN. QFF PRESSURE IN HPA 1007.3 1003.2 1002.3 1005.0 1000.4 993.4 994.4 997.4 1002.1 1004.8 1010.3 1003.5 993.4 DAY 25 2 24 30 6 21 6 8 5 21 6 24 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 891.7 891.5 889.7 893.6 891.3 889.6 888.8 889.6 892.1 895.7 896.3 895.6 892.1 MAX. QFE PRESSURE IN HPA 899.7 900.5 895.3 904.5 897.1 893.7 892.4 894.4 896.2 901.5 901.1 904.7 904.7 DAY 8 17 16 6 19 24 9 27 9 24 25 29 MIN. QFE PRESSURE IN HPA 880.5 881.5 880.5 887.2 881.8 882.1 880.7 884.3 886.4 887.8 888.6 882.8 880.5 DAY 23 2 24 30 6 21 6 8 5 21 9 26 MEAN QNH PRESSURE IN HPA 1016.1 1015.9 1013.9 1018.2 1015.7 1013.8 1012.9 1013.8 1016.5 1020.5 1021.2 1020.4 1016.6 MAX. QNH PRESSURE IN HPA 1025.0 1025.9 1020.1 1030.3 1022.1 1018.3 1016.9 1019.1 1021.1 1027.0 1026.6 1030.6 1030.6 DAY 8 17 16 6 19 24 9 27 9 24 25 29 MIN. QNH PRESSURE IN HPA 1003.7 1004.8 1003.7 1011.1 1005.1 1005.4 1003.9 1007.9 1010.2 1011.8 1012.7 1006.2 1003.7 DAY 23 2 24 30 6 21 6 8 5 21 9 26 MEAN QFF PRESSURE IN HPA 1020.1 1019.7 1014.4 1016.5 1011.6 1007.1 1004.4 1006.7 1010.8 1018.1 1022.8 1022.6 1014.6 MAX. QFF PRESSURE IN HPA 1028.7 1032.5 1024.1 1034.9 1018.4 1013.9 1009.0 1013.6 1015.3 1028.3 1030.0 1036.9 1036.9 DAY 8 17 27 6 12 9 9 27 9 24 25 29 MIN. QFF PRESSURE IN HPA 1005.4 1004.5 1003.7 1006.7 1000.9 996.0 994.5 998.6 1003.3 1007.6 1011.3 1004.2 994.5 DAY 23 2 24 30 6 21 6 7 5 21 6 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 892.6 892.3 890.4 893.9 891.4 889.6 888.9 890.0 892.5 896.3 897.1 896.7 892.6 MAX. QFE PRESSURE IN HPA 900.7 900.7 895.8 905.3 897.0 893.5 892.3 894.4 896.3 902.3 902.3 905.7 905.7 DAY 8 17 16 6 19 4 8 27 9 11 25 29 MIN. QFE PRESSURE IN HPA 878.8 882.9 881.5 886.6 882.2 882.4 881.1 884.5 887.6 888.1 889.2 884.2 878.8 DAY 23 2 24 27 6 20 6 8 12 20 9 26 MEAN QNH PRESSURE IN HPA 1017.1 1016.7 1014.7 1018.6 1015.8 1013.7 1013.0 1014.2 1017.0 1021.2 1022.1 1021.7 1017.2 MAX. QNH PRESSURE IN HPA 1026.1 1026.1 1020.7 1031.2 1022.0 1018.1 1016.8 1019.1 1021.2 1027.9 1027.9 1031.7 1031.7 DAY 8 17 16 6 19 4 8 27 9 11 25 29 MIN. QNH PRESSURE IN HPA 1001.8 1006.3 1004.8 1010.4 1005.6 1005.8 1004.3 1008.1 1011.6 1012.1 1013.3 1007.8 1001.8 DAY 23 2 24 27 6 20 6 8 12 20 9 26 MEAN QFF PRESSURE IN HPA 1021.0 1020.4 1014.9 1016.4 1011.2 1007.1 1004.4 1006.8 1010.5 1017.9 1022.9 1023.4 1014.7 MAX. QFF PRESSURE IN HPA 1029.6 1032.0 1023.7 1035.4 1017.8 1014.0 1009.5 1013.2 1015.1 1027.8 1030.9 1036.8 1036.8 DAY 8 17 27 6 19 9 8 27 9 24 27 29 MIN. QFF PRESSURE IN HPA 1003.5 1006.4 1005.4 1005.0 1000.8 997.6 994.7 998.8 1003.7 1007.5 1012.6 1005.7 994.7 DAY 23 2 24 27 4 20 6 8 5 20 9 24 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 891.6 891.6 889.3 892.8 890.7 888.7 887.9 889.0 891.0 894.9 895.6 895.6 891.5 MAX. QFE PRESSURE IN HPA 900.1 900.1 894.4 904.3 896.1 893.1 891.5 893.3 894.9 900.9 900.7 904.3 904.3 DAY 8 16 16 6 19 4 8 27 9 23 15 29 MIN. QFE PRESSURE IN HPA 876.0 883.7 880.5 884.5 882.4 880.9 880.5 883.7 886.6 886.1 888.9 883.7 876.0 DAY 23 2 24 27 5 20 6 8 12 20 9 26 MEAN QNH PRESSURE IN HPA 1016.0 1016.0 1013.5 1017.3 1015.0 1012.8 1011.9 1013.1 1015.3 1019.6 1020.4 1020.4 1015.9 MAX. QNH PRESSURE IN HPA 1025.5 1025.5 1019.1 1030.1 1021.0 1017.7 1015.9 1017.9 1019.7 1026.3 1026.1 1030.1 1030.1 DAY 8 16 16 6 19 4 8 27 9 23 15 29 MIN. QNH PRESSURE IN HPA 998.7 1007.2 1003.7 1008.1 1005.8 1004.1 1003.7 1007.2 1010.4 1009.9 1013.0 1007.2 998.7 DAY 23 2 24 27 5 20 6 8 12 20 9 26 MEAN QFF PRESSURE IN HPA 1019.1 1018.9 1013.0 1014.6 1010.0 1005.8 1002.8 1005.5 1008.3 1015.7 1020.6 1021.4 1013.0 MAX. QFF PRESSURE IN HPA 1028.6 1029.7 1023.5 1033.3 1016.5 1013.1 1008.0 1011.6 1013.1 1025.7 1028.4 1035.1 1035.1 DAY 8 16 26 6 19 9 8 27 9 23 27 29 MIN. QFF PRESSURE IN HPA 999.4 1007.3 1003.9 1002.4 1000.4 995.0 993.2 997.8 1003.3 1004.0 1012.6 1006.1 993.2 DAY 23 1 9 27 5 20 6 8 5 20 6 26 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 891.1 890.7 888.4 891.9 889.9 887.7 886.8 888.0 889.7 894.1 895.0 895.0 890.7 MAX. QFE PRESSURE IN HPA 899.1 898.7 894.6 902.6 895.1 892.6 889.9 892.1 893.6 901.4 900.0 903.9 903.9 DAY 8 16 26 6 18 9 8 29 9 23 15 30 MIN. QFE PRESSURE IN HPA 876.6 883.0 880.8 883.5 881.0 878.9 879.5 882.4 885.4 885.2 889.8 884.6 876.6 DAY 23 1 24 27 4 20 6 8 12 20 30 26 MEAN QNH PRESSURE IN HPA 1015.4 1015.0 1012.5 1016.3 1014.1 1011.7 1010.7 1012.0 1013.9 1018.8 1019.8 1019.8 1015.0 MAX. QNH PRESSURE IN HPA 1024.3 1023.9 1019.3 1028.2 1019.9 1017.1 1014.1 1016.6 1018.2 1026.9 1025.3 1029.7 1029.7 DAY 8 16 26 6 18 9 8 29 9 23 15 30 MIN. QNH PRESSURE IN HPA 999.3 1006.4 1004.0 1007.0 1004.2 1001.9 1002.6 1005.8 1009.1 1008.9 1014.0 1008.2 999.3 DAY 23 1 24 27 4 20 6 8 12 20 30 26 MEAN QFF PRESSURE IN HPA 1018.4 1017.8 1012.1 1013.7 1009.6 1004.8 1001.8 1004.5 1007.0 1015.0 1020.0 1020.8 1012.1 MAX. QFF PRESSURE IN HPA 1027.2 1028.0 1023.4 1031.4 1015.9 1012.9 1006.0 1010.6 1011.3 1026.8 1026.9 1035.0 1035.0 DAY 8 17 26 6 18 9 8 29 9 23 14 30 MIN. QFF PRESSURE IN HPA 1001.1 1005.8 1003.1 1002.3 998.5 992.6 992.3 996.0 1001.9 1003.5 1013.2 1007.2 992.3 DAY 23 1 9 27 4 20 6 8 4 20 18 17 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MEANS AND EXTREMES FOR THE YEAR 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 891.5 891.1 888.9 892.1 890.4 887.7 887.0 888.1 890.1 894.8 895.6 895.6 891.1 MAX. QFE PRESSURE IN HPA 899.7 899.4 894.7 902.8 895.8 892.7 890.0 892.5 894.0 902.5 900.4 904.2 904.2 DAY 9 16 26 5 18 7 8 29 9 23 15 28 MIN. QFE PRESSURE IN HPA 877.9 882.4 882.3 884.8 880.9 877.8 879.5 882.7 885.9 885.8 890.3 886.1 877.8 DAY 23 1 24 27 3 20 6 7 4 20 30 26 MEAN QNH PRESSURE IN HPA 1015.9 1015.5 1013.0 1016.5 1014.7 1011.7 1010.9 1012.1 1014.3 1019.6 1020.5 1020.4 1015.4 MAX. QNH PRESSURE IN HPA 1025.0 1024.7 1019.4 1028.5 1020.7 1017.2 1014.2 1017.0 1018.7 1028.1 1025.8 1030.0 1030.0 DAY 9 16 26 5 18 7 8 29 9 23 15 28 MIN. QNH PRESSURE IN HPA 1000.8 1005.8 1005.7 1008.4 1004.1 1000.7 1002.6 1006.1 1009.7 1009.6 1014.6 1009.9 1000.7 DAY 23 1 24 27 3 20 6 7 4 20 30 26 MEAN QFF PRESSURE IN HPA 1019.7 1019.3 1013.5 1014.7 1010.6 1005.0 1002.3 1005.1 1008.6 1017.1 1022.0 1022.6 1013.4 MAX. QFF PRESSURE IN HPA 1028.9 1029.9 1024.0 1032.8 1016.9 1013.5 1007.6 1011.1 1012.9 1028.4 1028.9 1036.1 1036.1 DAY 9 16 26 5 11 8 30 29 9 23 25 30 MIN. QFF PRESSURE IN HPA 1003.2 1005.1 1004.3 1004.5 999.1 991.8 992.1 996.8 1002.6 1005.3 1014.5 1009.6 991.8 DAY 23 1 10 29 3 20 6 7 4 20 8 17 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 891.8 891.8 889.9 893.1 891.5 888.9 888.1 889.2 891.4 895.6 896.0 895.9 891.9 MAX. QFE PRESSURE IN HPA 900.3 900.2 895.5 904.9 897.1 893.7 891.8 893.4 895.7 903.0 900.7 904.4 904.9 DAY 9 16 26 5 11 8 8 29 7 23 23 29 MIN. QFE PRESSURE IN HPA 880.0 883.0 884.2 885.9 881.8 878.9 881.2 883.7 886.9 886.4 890.3 887.5 878.9 DAY 23 1 10 27 3 20 5 7 4 20 8 26 MEAN QNH PRESSURE IN HPA 1016.3 1016.3 1014.1 1017.6 1015.8 1013.0 1012.1 1013.4 1015.7 1020.5 1020.9 1020.8 1016.4 MAX. QNH PRESSURE IN HPA 1025.7 1025.6 1020.3 1030.8 1022.1 1018.3 1016.2 1018.0 1020.6 1028.7 1026.1 1030.2 1030.8 DAY 9 16 26 5 11 8 8 29 7 23 23 29 MIN. QNH PRESSURE IN HPA 1003.1 1006.4 1007.8 1009.7 1005.1 1001.9 1004.4 1007.2 1010.8 1010.2 1014.6 1011.4 1001.9 DAY 23 1 10 27 3 20 5 7 4 20 8 26 MEAN QFF PRESSURE IN HPA 1020.1 1019.9 1014.2 1015.4 1011.3 1006.3 1003.5 1006.0 1009.2 1017.2 1021.8 1022.6 1013.9 MAX. QFF PRESSURE IN HPA 1029.6 1031.1 1025.2 1035.3 1018.9 1014.7 1008.5 1012.6 1014.5 1028.9 1028.5 1035.5 1035.5 DAY 9 17 26 5 11 8 8 29 7 23 27 29 MIN. QFF PRESSURE IN HPA 1005.5 1005.8 1003.6 1005.1 999.4 992.9 994.1 998.0 1002.6 1004.8 1013.4 1010.2 992.9 DAY 23 1 10 27 3 20 6 8 4 20 8 16 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 891.6 891.8 889.8 893.0 891.2 888.8 888.1 889.1 891.4 895.5 895.8 895.6 891.8 MAX. QFE PRESSURE IN HPA 899.6 900.2 895.4 904.7 896.7 893.4 891.6 893.2 895.3 902.6 901.1 904.5 904.7 DAY 7 16 26 5 18 8 8 26 7 26 23 28 MIN. QFE PRESSURE IN HPA 880.8 882.8 882.7 886.5 882.5 878.9 880.9 884.0 886.8 886.5 889.2 885.1 878.9 DAY 23 1 23 29 5 20 5 7 4 20 8 23 MEAN QNH PRESSURE IN HPA 1016.0 1016.2 1014.0 1017.5 1015.5 1012.9 1012.1 1013.2 1015.7 1020.3 1020.6 1020.5 1016.2 MAX. QNH PRESSURE IN HPA 1024.9 1025.6 1020.2 1030.6 1021.7 1018.0 1016.0 1017.8 1020.1 1028.2 1026.6 1030.3 1030.6 DAY 7 16 26 5 18 8 8 26 7 26 23 28 MIN. QNH PRESSURE IN HPA 1004.0 1006.2 1006.1 1010.3 1005.9 1001.9 1004.1 1007.6 1010.7 1010.3 1013.3 1008.8 1001.9 DAY 23 1 23 29 5 20 5 7 4 20 8 23 MEAN QFF PRESSURE IN HPA 1019.1 1019.1 1013.5 1014.8 1010.6 1005.8 1003.1 1005.6 1008.6 1016.5 1020.9 1021.6 1013.3 MAX. QFF PRESSURE IN HPA 1028.2 1030.6 1025.0 1034.7 1017.3 1014.1 1007.6 1011.9 1013.7 1028.1 1027.6 1035.4 1035.4 DAY 9 16 26 5 18 8 8 29 7 23 25 28 MIN. QFF PRESSURE IN HPA 1006.0 1005.5 1004.4 1004.4 1000.5 992.0 994.4 997.6 1002.3 1003.0 1011.5 1006.8 992.0 DAY 23 1 9 29 5 20 5 8 4 20 8 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1977-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.9 1.8 6.4 13.1 17.6 22.8 25.6 24.6 20.4 13.6 7.7 3.0 13.1 MINIMUN AIR TEMPERATURE (C) -3.4 -2.8 1.1 6.7 10.7 15.1 17.8 16.6 12.5 6.7 2.4 -1.3 6.8 DAYS WITH MINIMUM TEMP. >=21 0.0 0.0 0.0 0.0 0.0 0.1 2.5 1.4 0.0 0.0 0.0 0.0 4.0 DAYS WITH MINIMUM TEMP. <=-4 13.0 9.5 3.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 1.8 7.8 35.3 DAYS WITH FREEZING MIN.<= 0 24.5 21.9 12.6 1.3 0.0 0.0 0.0 0.0 0.0 1.8 10.0 19.8 91.9 TEMPERATURE RECORDS LOWEST(C) -18.4 -19.0 -13.6 -7.0 -0.2 4.0 10.0 5.4 1.6 -3.8 -8.6 -25.0 -25.0 YEAR-DAY 86-22 80- 4 92-13 81- 3 3- 2 3- 7 87- 5 92-31 3-28 95-19 92-27 90-30 90-30 MAXIMUM AIR TEMPERATURE (C) 6.3 7.6 12.5 19.9 24.3 29.6 32.4 31.8 28.2 21.2 14.3 8.7 19.7 DAYS WITH MAXIMUM TEMP. >=30 0.0 0.0 0.0 0.9 4.0 15.7 24.4 23.6 11.1 0.7 0.0 0.0 80.4 DAYS WITH MAXIMUM TEMP. <= 0 2.8 2.6 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 7.0 TEMPERATURE RECORDS HIGHEST(C) 18.2 23.4 27.0 33.8 37.4 41.5 40.2 42.3 39.0 33.0 27.0 25.0 42.3 YEAR-DAY 2- 3 4-15 77-20 85-24 1-15 85-26 83-23 83-15 97- 1 80- 4 79- 3 98-11 83-15 DIF. BETWEEN (MAX.-MIN.) (C) 9.7 10.4 11.4 13.2 13.6 14.5 14.6 15.2 15.7 14.5 11.9 10.0 12.9 MEAN DAILY TEMP. (MDT) (C) 1.4 2.4 6.8 13.3 17.5 22.4 25.1 24.2 20.3 13.9 8.3 3.7 13.3 STANDARD DEVIATION OF MDT(C) 1.75 2.38 1.81 1.57 1.68 1.23 0.92 1.29 1.10 1.71 1.72 1.94 1.59 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.5 7.1 58.5 129.3 103.4 25.2 0.5 0.0 0.0 324.5 HEATING DEG. DAYS(BASE 18 0C) 512.0 440.2 347.0 146.6 51.2 3.1 0.1 0.5 11.9 132.2 289.9 443.4 2378.1 DEWPOINT (MEAN C) -4.3 -3.7 -0.1 4.5 7.5 9.4 11.2 9.3 6.8 3.8 0.8 -2.3 3.6 MIXING RATIO (G/KG) 3.25 3.40 4.44 6.16 7.61 8.68 9.93 8.89 7.49 5.91 4.73 3.76 6.19 VAPOUR PRESSURE (HPA) 4.64 4.84 6.32 8.73 10.77 12.23 13.95 12.53 10.61 8.42 6.75 5.37 8.76 SATURATION DEF. (HPA) 2.30 2.64 4.05 7.47 10.52 17.06 20.34 19.92 14.85 8.24 4.47 2.71 9.55 RELATIVE HUMIDITY (MEAN %) 72 71 68 62 57 47 46 43 47 57 66 72 58 RELATIVE HUMIDITY (MAX. %) 87 88 88 84 80 70 69 67 72 80 86 87 80 RELATIVE HUMIDITY (MIN. %) 54 51 48 40 37 30 28 25 27 35 46 53 40 RELATIVE HUMIDITY (MEAN% 03UTC) 82 83 84 80 75 65 66 64 67 77 82 83 76 RELATIVE HUMIDITY (MEAN% 09UTC) 61 60 56 48 43 35 33 31 33 42 52 60 46 RELATIVE HUMIDITY (MEAN% 15UTC) 70 66 62 53 48 37 35 33 38 50 63 69 52 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 27.6 30.7 42.4 38.5 34.6 8.7 10.1 6.0 8.4 14.1 26.3 25.0 272.4 DAYS WITH PRECIPITATION >=10 0.5 0.6 1.1 1.3 1.3 0.2 0.2 0.2 0.2 0.3 0.9 0.5 7.3 DAYS WITH PRECIPITATION >= 5 1.8 2.1 3.2 2.5 2.3 0.5 0.7 0.4 0.4 1.1 1.9 1.7 18.6 DAYS WITH PRECIPITATION >= 1 6.2 6.5 8.0 5.9 4.9 1.7 1.4 0.9 1.1 3.1 4.7 5.6 50.0 DAYS WITH PRECIPITATION 11.1 11.5 12.8 10.6 9.6 3.6 2.6 2.0 2.4 5.6 8.3 10.1 90.2 GREATEST DAILY PRECIPITATION 33.0 39.0 25.4 28.1 37.0 25.0 37.1 41.0 54.3 15.0 28.0 28.0 54.3 YEAR-DAY 89-25 80-12 79-28 4- 5 77-25 0-13 81-20 88-21 0-11 77-23 77-14 89- 5 0 DAY WITH THUNDER STORM 0.0 0.4 1.0 2.7 4.9 2.4 1.3 1.0 0.9 0.8 0.7 0.1 16.2 DAYS WITH SNOW OR SLEET 8.3 9.2 5.4 0.6 0.1 0.0 0.0 0.0 0.0 0.0 1.4 4.6 29.6 DAYS WITH DUST 0.2 0.1 0.3 1.2 1.1 1.6 1.7 1.9 2.1 1.1 0.4 0.3 12.0 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 11.1 11.7 12.3 12.8 12.8 13.5 13.5 12.5 12.1 11.4 10.9 10.7 12.4 PREVAILING WIND PERCENT 13.5 19.9 25.5 26.9 29.7 35.1 36.8 31.6 28.9 22.4 15.2 11.0 24.7 CALMS PERCENT OF WIND 72.4 66.4 58.3 57.3 54.5 46.0 39.6 47.6 58.5 68.8 74.6 76.4 60.0 NO. OF WIND OBSERVATION 223.4 204.0 222.1 217.7 222.8 213.3 217.0 217.2 215.8 222.6 216.7 222.3 2614.9 VECTOR WIND DIRECTION (MEAN) 242 262 272 276 280 283 290 290 282 277 262 234 277 VECTOR WIND MAGNITUDE(KNOTS) 1.4 2.1 2.9 3.4 3.7 4.6 5.2 4.1 3.7 2.8 1.7 1.1 3.0 WIND STEADINESES (MEAN %) 46.7 56.8 63.0 70.8 74.0 74.2 74.3 71.9 82.2 84.8 65.4 42.3 68.2 WIND SPEED (MEAN KNOTS) 3.0 3.7 4.6 4.8 5.0 6.2 7.0 5.7 4.5 3.3 2.6 2.6 4.4 FASTEST WIND DIRECTION 270 180 280 270 280 280 290 270 270 270 280 190 180 FASTEST WIND SPEED (KNOTS) 62 87 78 68 58 54 47 43 47 54 64 78 87 YEAR-DAY 91- 5 99-20 93-23 97-10 90- 3 93-21 85-28 0- 7 0- 2 96-14 88-14 85-19 99 DAYS WITH SKY CLEAR (0-2)/8 11.1 9.4 8.1 8.2 11.9 20.3 23.7 24.7 24.8 18.5 12.9 11.0 184.6 DAYS WITH P.CLOUDY (3-6)/8 9.6 8.9 10.3 11.7 12.5 7.9 6.4 5.8 4.4 8.8 10.2 10.8 107.3 DAYS WITH CLOUDY (7-8)/8 10.3 9.9 12.6 10.1 6.6 1.8 0.9 0.6 0.8 3.7 7.0 9.2 73.5 DAYS WITH VISIBILITY =< 2 KM 5.5 4.4 3.2 1.5 0.7 0.2 0.1 0.1 0.1 0.7 1.7 4.1 22.3 DURATION OF SUNSHINE HOURS 140.1 148.8 161.1 207.6 265.9 304.3 323.9 327.5 279.3 240.5 175.0 140.0 2714.0 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1977-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 893.9 892.9 892.2 891.5 891.9 889.8 888.9 890.2 893.1 896.0 896.0 895.0 892.6 MAX. QFE PRESSURE IN HPA 910.8 909.6 911.2 907.4 907.7 903.5 899.7 902.7 905.4 908.8 913.1 911.2 913.1 YEAR-DAY 83- 8 84-18 77- 9 85-17 82-10 78- 8 80-10 80-30 77-30 82-25 83-26 78-24 83-26 MIN. QFE PRESSURE IN HPA 876.0 872.8 875.6 876.0 878.5 877.5 877.7 879.6 881.9 882.4 877.9 873.1 872.8 YEAR-DAY 5-23 1-21 88- 5 2- 3 4-13 99-25 98- 5 4-12 96- 9 96-27 94-26 88-27 1-21 MEAN QNH PRESSURE IN HPA 1018.6 1017.5 1016.7 1015.9 1016.3 1014.0 1013.0 1014.5 1017.7 1020.9 1020.9 1019.8 1017.1 MAX. QNH PRESSURE IN HPA 1037.3 1036.0 1037.8 1033.6 1033.9 1029.2 1025.0 1028.3 1031.3 1035.1 1039.9 1037.8 1039.9 YEAR-DAY 83- 8 84-18 77- 9 85-17 82-10 78- 8 80-10 80-30 77-30 82-25 83-26 78-24 83-26 MIN. QNH PRESSURE IN HPA 998.7 995.1 998.2 998.7 1001.4 1000.3 1000.5 1002.7 1005.2 1005.8 1000.8 995.4 995.1 YEAR-DAY 5-23 1-21 88- 5 2- 3 4-13 99-25 98- 5 4-12 96- 9 96-27 94-26 88-27 1-21 MEAN QFF PRESSURE IN HPA 1022.0 1019.8 1017.2 1013.5 1011.6 1007.1 1004.8 1006.6 1011.7 1018.1 1020.6 1022.6 1014.6 MAX. QFF PRESSURE IN HPA 1044.4 1043.4 1043.9 1035.4 1030.7 1022.2 1018.0 1024.1 1027.2 1036.8 1042.4 1042.3 1044.4 YEAR-DAY 83- 8 84-18 85- 5 5- 6 82-10 83- 1 82- 8 80-30 81-23 84-21 83-26 82-10 83- 8 MIN. QFF PRESSURE IN HPA 999.4 993.5 993.9 995.1 994.1 991.8 991.1 993.4 995.6 1000.7 999.0 994.5 991.1 YEAR-DAY 5-23 1-21 98-30 2- 3 4-13 5-20 98- 5 4-12 96- 9 96-27 4-23 88-27 98- 5 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 893.0 891.6 891.0 890.9 891.3 889.2 888.2 889.5 892.3 895.5 895.4 894.5 891.9 MAX. QFE PRESSURE IN HPA 906.2 904.7 910.1 906.7 906.4 899.7 896.3 897.7 902.7 907.7 909.2 908.8 910.1 YEAR-DAY 99- 2 98-23 85- 6 85-17 82-10 82- 7 84- 4 96-30 81-27 84-22 83- 5 84-19 85- 6 MIN. QFE PRESSURE IN HPA 877.8 875.9 875.6 877.0 880.0 878.8 878.0 881.8 881.9 885.0 880.0 875.5 875.5 YEAR-DAY 3-29 90-16 88- 5 2- 4 91-23 99-25 98- 6 2-17 96- 9 96-27 95-26 94- 4 94- 4 MEAN QNH PRESSURE IN HPA 1017.6 1016.0 1015.4 1015.3 1015.6 1013.3 1012.3 1013.7 1016.8 1020.3 1020.2 1019.2 1016.3 MAX. QNH PRESSURE IN HPA 1032.2 1030.6 1036.6 1032.8 1032.5 1025.0 1021.2 1022.8 1028.3 1033.9 1035.6 1035.1 1036.6 YEAR-DAY 99- 2 98-23 85- 6 85-17 82-10 82- 7 84- 4 96-30 81-27 84-22 83- 5 84-19 85- 6 MIN. QNH PRESSURE IN HPA 1000.7 998.5 998.2 999.8 1003.1 1001.8 1000.9 1005.1 1005.2 1008.7 1003.1 998.1 998.1 YEAR-DAY 3-29 90-16 88- 5 2- 4 91-23 99-25 98- 6 2-17 96- 9 96-27 95-26 94- 4 94- 4 MEAN QFF PRESSURE IN HPA 1020.7 1018.4 1015.9 1012.6 1011.2 1006.2 1004.2 1005.9 1010.7 1017.3 1019.9 1021.2 1013.7 MAX. QFF PRESSURE IN HPA 1039.0 1036.9 1042.1 1034.2 1030.2 1020.0 1013.8 1020.0 1025.2 1035.4 1037.3 1041.0 1042.1 YEAR-DAY 99- 2 98-23 85- 6 5- 6 82-10 93-23 84- 4 92-31 81-24 84-22 83- 5 3-12 85- 6 MIN. QFF PRESSURE IN HPA 1001.9 995.2 995.1 995.9 996.3 993.4 991.1 994.1 995.6 1002.4 1001.3 994.9 991.1 YEAR-DAY 3-29 99-21 98-30 91- 5 90-13 5-21 91- 8 4-13 96- 9 98- 2 94-26 94- 4 91- 8 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 893.9 892.9 892.5 891.9 892.4 890.7 889.8 891.1 893.9 896.4 896.3 895.2 893.1 MAX. QFE PRESSURE IN HPA 909.7 908.4 909.3 906.9 906.6 903.5 899.2 899.7 903.9 907.8 912.8 909.5 912.8 YEAR-DAY 83- 8 84-19 85- 5 85-17 82-10 78- 8 78- 8 79-29 77-30 84-22 83-26 78-24 83-26 MIN. QFE PRESSURE IN HPA 879.6 877.2 877.3 877.2 880.1 879.0 879.5 882.7 883.3 884.3 877.9 875.6 875.6 YEAR-DAY 0-21 90-16 88- 5 2- 4 91-17 99-25 98- 6 2-17 96-22 96-27 94-26 94- 4 94- 4 MEAN QNH PRESSURE IN HPA 1018.6 1017.5 1017.0 1016.4 1016.9 1015.0 1014.0 1015.5 1018.6 1021.4 1021.2 1020.0 1017.7 MAX. QNH PRESSURE IN HPA 1036.1 1034.7 1035.7 1033.0 1032.7 1029.2 1024.5 1025.0 1029.7 1034.0 1039.6 1035.9 1039.6 YEAR-DAY 83- 8 84-19 85- 5 85-17 82-10 78- 8 78- 8 79-29 77-30 84-22 83-26 78-24 83-26 MIN. QNH PRESSURE IN HPA 1002.7 1000.0 1000.1 1000.0 1003.2 1002.0 1002.6 1006.1 1006.8 1007.9 1000.8 998.2 998.2 YEAR-DAY 0-21 90-16 88- 5 2- 4 91-17 99-25 98- 6 2-17 96-22 96-27 94-26 94- 4 94- 4 MEAN QFF PRESSURE IN HPA 1022.6 1021.0 1018.3 1014.4 1012.8 1008.4 1006.3 1008.3 1013.6 1019.7 1022.2 1023.1 1015.9 MAX. QFF PRESSURE IN HPA 1043.6 1043.1 1043.6 1035.0 1030.7 1025.3 1018.9 1021.4 1027.0 1036.8 1042.0 1043.5 1043.6 YEAR-DAY 83- 8 84-19 85- 5 85-17 82-10 78- 8 78- 8 92-31 81-23 82-25 83-26 78-24 85- 5 MIN. QFF PRESSURE IN HPA 1003.2 999.2 994.8 998.3 996.5 994.5 993.5 997.4 998.2 1004.7 999.1 996.0 993.5 YEAR-DAY 2- 8 99-21 98-30 91- 5 91-17 99-25 95-16 2-17 96- 9 96-27 94-26 94- 4 95-16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1977-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 894.9 893.9 893.2 892.4 892.6 890.8 890.0 891.4 894.4 897.2 897.1 896.1 893.7 MAX. QFE PRESSURE IN HPA 910.8 909.3 910.5 907.4 907.7 903.2 898.8 902.7 904.4 908.8 913.1 911.2 913.1 YEAR-DAY 83- 8 84-19 85- 5 85-17 82-10 78- 8 80-18 80-30 77-30 82-25 83-26 78-24 83-26 MIN. QFE PRESSURE IN HPA 878.8 876.8 877.2 877.2 879.8 879.4 880.9 883.0 883.9 883.5 879.4 876.7 876.7 YEAR-DAY 5-23 3-19 87-14 2- 4 91-22 99-25 95-16 2-17 96-22 96-27 94-26 85-19 85-19 MEAN QNH PRESSURE IN HPA 1019.7 1018.5 1017.8 1016.9 1017.1 1015.1 1014.2 1015.8 1019.1 1022.2 1022.1 1021.0 1018.3 MAX. QNH PRESSURE IN HPA 1037.3 1035.7 1037.0 1033.6 1033.9 1028.9 1024.0 1028.3 1030.2 1035.1 1039.9 1037.8 1039.9 YEAR-DAY 83- 8 84-19 85- 5 85-17 82-10 78- 8 80-18 80-30 77-30 82-25 83-26 78-24 83-26 MIN. QNH PRESSURE IN HPA 1001.8 999.5 1000.0 1000.0 1002.9 1002.4 1004.1 1006.4 1007.4 1007.0 1002.4 999.4 999.4 YEAR-DAY 5-23 3-19 87-14 2- 4 91-22 99-25 95-16 2-17 96-22 96-27 94-26 85-19 85-19 MEAN QFF PRESSURE IN HPA 1023.4 1021.8 1018.4 1014.7 1012.3 1008.1 1006.0 1008.1 1013.3 1019.6 1022.5 1024.0 1016.0 MAX. QFF PRESSURE IN HPA 1044.4 1043.3 1043.9 1035.4 1030.3 1022.1 1016.7 1024.1 1025.9 1037.7 1042.4 1042.1 1044.4 YEAR-DAY 83- 8 84-19 85- 5 5- 6 82-11 83- 1 83- 1 80-30 79-24 82-25 83-26 82-10 83- 8 MIN. QFF PRESSURE IN HPA 1003.5 998.1 993.9 997.9 997.5 994.7 993.3 997.3 999.9 1001.9 1001.5 996.9 993.3 YEAR-DAY 5-23 1-21 98-30 2- 4 4-13 99-25 95-16 2-17 96- 9 96-27 94-26 85-19 95-16 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 893.9 893.1 892.3 891.5 891.8 889.8 888.9 890.3 893.1 895.9 895.8 894.9 892.6 MAX. QFE PRESSURE IN HPA 909.2 908.3 909.8 906.0 906.4 902.1 897.6 902.1 905.4 907.6 911.0 908.8 911.0 YEAR-DAY 79-18 84-19 77- 9 85-17 82-10 78- 8 80-18 80-30 77-30 82-25 83-26 84-18 83-26 MIN. QFE PRESSURE IN HPA 876.0 876.0 876.8 876.4 878.5 878.0 879.3 881.4 882.3 882.4 880.3 875.7 875.7 YEAR-DAY 5-23 1-21 87-14 2- 4 4-13 99-25 98- 5 2-17 97- 2 96-27 94-26 88-27 88-27 MEAN QNH PRESSURE IN HPA 1018.6 1017.7 1016.8 1015.9 1016.2 1014.0 1013.0 1014.5 1017.7 1020.8 1020.7 1019.7 1017.1 MAX. QNH PRESSURE IN HPA 1035.6 1034.6 1036.2 1032.0 1032.5 1027.7 1022.7 1027.7 1031.3 1033.8 1037.6 1035.1 1037.6 YEAR-DAY 79-18 84-19 77- 9 85-17 82-10 78- 8 80-18 80-30 77-30 82-25 83-26 84-18 83-26 MIN. QNH PRESSURE IN HPA 998.7 998.7 999.5 999.1 1001.4 1000.9 1002.3 1004.7 1005.7 1005.8 1003.4 998.3 998.3 YEAR-DAY 5-23 1-21 87-14 2- 4 4-13 99-25 98- 5 2-17 97- 2 96-27 94-26 88-27 88-27 MEAN QFF PRESSURE IN HPA 1020.7 1018.8 1016.3 1012.4 1010.9 1006.0 1003.9 1005.7 1010.6 1017.0 1019.7 1021.3 1013.6 MAX. QFF PRESSURE IN HPA 1040.8 1036.1 1033.9 1033.3 1028.8 1020.9 1013.8 1019.8 1024.2 1031.8 1036.7 1038.9 1040.8 YEAR-DAY 99- 2 98-23 97-11 5- 6 3- 1 93-22 96- 3 92-31 81-27 95-18 83- 5 3-12 99- 2 MIN. QFF PRESSURE IN HPA 999.4 995.9 995.8 997.7 994.1 992.9 992.6 994.8 997.0 1000.7 1002.2 1001.6 992.6 YEAR-DAY 5-23 1-21 98-30 2- 4 4-13 99-25 98- 5 2-17 97- 2 96-27 4-23 94- 4 98- 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 893.2 892.1 891.4 890.6 890.9 888.8 887.8 889.0 891.9 895.0 895.1 894.2 891.7 MAX. QFE PRESSURE IN HPA 909.1 908.5 910.0 905.2 905.5 901.0 899.7 900.7 903.6 907.1 908.2 908.8 910.0 YEAR-DAY 79-18 84-18 77- 9 79-27 82-10 79-10 80-10 80-30 77-30 84-21 83-26 84-18 77- 9 MIN. QFE PRESSURE IN HPA 876.6 873.6 877.1 877.4 879.4 877.5 877.8 879.7 882.1 882.7 879.9 873.1 873.1 YEAR-DAY 5-23 1-21 87-14 2- 4 4-16 99-25 98- 5 4-12 95-19 96-27 4-23 88-27 88-27 MEAN QNH PRESSURE IN HPA 1017.7 1016.6 1015.7 1014.9 1015.3 1012.8 1011.8 1013.2 1016.4 1019.7 1019.9 1018.9 1016.1 MAX. QNH PRESSURE IN HPA 1035.5 1034.8 1036.5 1031.1 1031.5 1026.5 1025.0 1026.1 1029.3 1033.2 1034.5 1035.1 1036.5 YEAR-DAY 79-18 84-18 77- 9 79-27 82-10 79-10 80-10 80-30 77-30 84-21 83-26 84-18 77- 9 MIN. QNH PRESSURE IN HPA 999.3 996.0 999.9 1000.2 1002.4 1000.3 1000.7 1002.8 1005.4 1006.1 1003.0 995.4 995.4 YEAR-DAY 5-23 1-21 87-14 2- 4 4-16 99-25 98- 5 4-12 95-19 96-27 4-23 88-27 88-27 MEAN QFF PRESSURE IN HPA 1020.1 1018.1 1015.2 1011.8 1010.1 1005.1 1003.0 1004.7 1009.4 1016.3 1018.9 1020.4 1012.8 MAX. QFF PRESSURE IN HPA 1039.6 1036.5 1041.0 1031.4 1028.8 1020.6 1012.5 1018.9 1025.1 1034.6 1036.3 1038.5 1041.0 YEAR-DAY 99- 2 88- 7 85- 5 5- 6 3- 1 93-22 96- 3 92-31 81-23 84-21 96-18 3-12 85- 5 MIN. QFF PRESSURE IN HPA 1001.1 993.5 998.2 997.1 995.1 992.4 991.1 993.4 997.5 1001.5 999.3 994.5 991.1 YEAR-DAY 5-23 1-21 88-21 2- 3 90-12 99-25 98- 5 4-12 0- 1 98- 1 4-23 88-27 98- 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1977-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 893.7 892.6 891.8 890.9 891.2 888.8 887.9 889.1 892.2 895.5 895.7 894.8 892.0 MAX. QFE PRESSURE IN HPA 909.3 909.6 911.2 905.6 905.3 901.9 897.0 900.9 903.6 907.8 907.8 909.7 911.2 YEAR-DAY 79-18 84-18 77- 9 85-16 82- 9 79-10 82- 7 80-30 77-30 84-21 79-10 84-18 77- 9 MIN. QFE PRESSURE IN HPA 877.9 872.8 878.4 876.4 879.3 877.8 877.7 879.6 882.5 885.0 879.9 873.7 872.8 YEAR-DAY 98-13 1-21 89-29 2- 3 90-12 99-25 98- 5 4-12 96- 8 96-27 4-23 88-27 1-21 MEAN QNH PRESSURE IN HPA 1018.3 1017.1 1016.2 1015.2 1015.6 1012.9 1011.9 1013.2 1016.7 1020.3 1020.5 1019.5 1016.5 MAX. QNH PRESSURE IN HPA 1035.7 1036.0 1037.8 1031.6 1031.2 1027.5 1022.0 1026.3 1029.3 1034.0 1034.0 1036.1 1037.8 YEAR-DAY 79-18 84-18 77- 9 85-16 82- 9 79-10 82- 7 80-30 77-30 84-21 79-10 84-18 77- 9 MIN. QNH PRESSURE IN HPA 1000.8 995.1 1001.3 999.1 1002.3 1000.7 1000.5 1002.7 1005.9 1008.7 1003.0 996.1 995.1 YEAR-DAY 98-13 1-21 89-29 2- 3 90-12 99-25 98- 5 4-12 96- 8 96-27 4-23 88-27 1-21 MEAN QFF PRESSURE IN HPA 1022.3 1020.6 1017.5 1013.2 1011.4 1006.3 1004.2 1006.2 1011.7 1018.7 1021.5 1022.6 1014.7 MAX. QFF PRESSURE IN HPA 1041.7 1043.0 1043.6 1032.8 1029.5 1023.1 1016.9 1021.7 1025.9 1036.9 1038.9 1040.8 1043.6 YEAR-DAY 83- 8 84-18 85- 5 5- 5 3- 1 79-10 78- 7 80-30 81-23 82-25 87-30 78-23 85- 5 MIN. QFF PRESSURE IN HPA 1003.2 993.6 998.0 996.2 995.2 991.8 991.3 993.4 998.1 1003.9 1000.2 995.1 991.3 YEAR-DAY 5-23 1-21 3-26 2- 3 90-12 5-20 98- 5 4-12 0- 1 98- 1 4-23 88-27 98- 5 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 893.9 893.0 892.1 891.8 892.0 889.8 888.9 890.2 893.1 896.0 896.1 895.2 892.7 MAX. QFE PRESSURE IN HPA 909.4 909.5 910.8 907.2 906.2 899.6 897.6 901.0 903.1 908.3 908.1 909.9 910.8 YEAR-DAY 83- 7 84-18 85- 5 85-16 82- 9 81- 9 80-11 80-30 80-25 84-21 79-10 84-18 85- 5 MIN. QFE PRESSURE IN HPA 878.0 877.3 877.6 876.0 880.8 878.9 878.6 881.1 882.6 885.7 879.5 879.9 876.0 YEAR-DAY 98-13 4-15 98-18 2- 3 97- 4 5-20 98- 5 4-12 96- 8 98- 1 4-23 2-21 2- 3 MEAN QNH PRESSURE IN HPA 1018.6 1017.5 1016.6 1016.2 1016.4 1014.0 1013.0 1014.5 1017.6 1020.9 1021.0 1020.0 1017.2 MAX. QNH PRESSURE IN HPA 1035.8 1035.9 1037.3 1033.3 1032.2 1024.9 1022.7 1026.5 1028.8 1034.6 1034.3 1036.3 1037.3 YEAR-DAY 83- 7 84-18 85- 5 85-16 82- 9 81- 9 80-11 80-30 80-25 84-21 79-10 84-18 85- 5 MIN. QNH PRESSURE IN HPA 1000.9 1000.1 1000.4 998.7 1004.0 1001.9 1001.5 1004.3 1006.0 1009.4 1002.6 1003.0 998.7 YEAR-DAY 98-13 4-15 98-18 2- 3 97- 4 5-20 98- 5 4-12 96- 8 98- 1 4-23 2-21 2- 3 MEAN QFF PRESSURE IN HPA 1022.5 1021.0 1017.6 1014.1 1012.0 1007.3 1005.1 1007.1 1012.0 1018.5 1021.5 1022.9 1015.1 MAX. QFF PRESSURE IN HPA 1041.9 1043.4 1043.9 1035.3 1030.2 1021.8 1016.0 1022.4 1027.2 1036.3 1038.6 1042.2 1043.9 YEAR-DAY 83- 7 84-18 85- 5 5- 5 82- 9 93-22 82- 7 80-30 81-23 82-25 96-18 84-18 85- 5 MIN. QFF PRESSURE IN HPA 1001.6 995.8 995.6 995.1 998.3 992.9 991.5 994.0 998.4 1003.2 999.0 1001.7 991.5 YEAR-DAY 83-24 4-15 98-18 2- 3 97- 4 5-20 91- 7 4-12 96- 8 98- 1 4-23 2-21 91- 7 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 892.9 891.9 891.3 891.0 891.4 888.8 888.1 889.4 892.4 895.6 895.4 894.6 891.9 MAX. QFE PRESSURE IN HPA 905.1 906.0 905.2 904.7 906.2 899.0 896.1 897.7 902.4 906.6 908.0 907.0 908.0 YEAR-DAY 99- 1 98-22 4- 8 5- 5 82- 9 93-22 96- 3 96-29 81-27 81-28 83- 4 3-11 83- 4 MIN. QFE PRESSURE IN HPA 877.8 876.7 877.4 876.2 880.6 878.9 878.2 881.3 882.1 885.7 880.1 878.1 876.2 YEAR-DAY 3-28 99-20 98-18 2- 3 4-12 5-20 98- 5 4-12 96- 8 98- 1 95-25 94- 3 2- 3 MEAN QNH PRESSURE IN HPA 1017.5 1016.3 1015.7 1015.3 1015.8 1012.9 1012.1 1013.6 1016.9 1020.4 1020.2 1019.4 1016.3 MAX. QNH PRESSURE IN HPA 1031.0 1032.0 1031.1 1030.6 1032.2 1024.2 1021.0 1022.8 1028.0 1032.7 1034.2 1033.1 1034.2 YEAR-DAY 99- 1 98-22 4- 8 5- 5 82- 9 93-22 96- 3 96-29 81-27 81-28 83- 4 3-11 83- 4 MIN. QNH PRESSURE IN HPA 1000.7 999.4 1000.2 998.9 1003.8 1001.9 1001.1 1004.5 1005.4 1009.4 1003.2 1001.0 998.9 YEAR-DAY 3-28 99-20 98-18 2- 3 4-12 5-20 98- 5 4-12 96- 8 98- 1 95-25 94- 3 2- 3 MEAN QFF PRESSURE IN HPA 1020.5 1018.6 1016.2 1012.5 1010.7 1006.0 1004.0 1005.7 1010.8 1017.2 1020.0 1021.4 1013.6 MAX. QFF PRESSURE IN HPA 1038.6 1038.0 1035.6 1034.7 1028.6 1021.0 1012.9 1019.6 1025.5 1034.5 1037.1 1040.1 1040.1 YEAR-DAY 99- 2 98-22 2-10 5- 5 3- 1 93-22 96- 3 92-30 81-23 95-17 96-18 3-11 3-11 MIN. QFF PRESSURE IN HPA 1000.7 996.1 996.3 995.9 996.3 992.0 991.1 993.7 997.1 1002.6 1000.0 999.1 991.1 YEAR-DAY 3-28 99-20 98-18 97- 9 4-12 5-20 98- 5 4-12 96- 8 98- 1 4-23 94- 3 98- 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 1 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 11.9 ***** 19.3 26.5 27.2 25.6 21.9 13.8 8.4 3.5 ****** 1978 1.7 2.1 7.6 14.8 16.9 22.2 26.4 25.0 23.2 15.8 5.3 6.6 14.0 1979 0.9 3.5 7.4 15.3 17.0 23.4 28.2 24.3 21.6 16.7 8.0 4.1 14.2 1980 -0.1 -1.6 6.7 16.6 19.3 23.9 27.5 25.1 20.7 12.9 9.8 4.3 13.8 1981 4.1 4.5 9.3 12.6 17.6 22.3 26.1 25.7 19.8 12.4 8.1 3.1 13.8 1982 -0.7 -1.8 4.5 15.9 18.5 23.4 25.9 24.6 20.4 13.0 5.2 0.9 12.5 1983 1.3 4.3 6.4 14.0 21.5 25.4 29.4 26.8 21.0 12.6 10.0 2.6 14.6 1984 2.3 -1.3 8.3 14.9 16.5 23.2 28.1 26.9 20.3 12.6 9.0 -1.7 13.3 1985 1.2 4.6 4.6 14.9 20.3 26.2 24.5 22.3 20.8 12.2 8.5 2.3 13.5 1986 0.6 3.3 1.9 11.8 18.1 22.2 25.5 23.4 20.3 15.8 6.4 2.1 12.6 1987 4.4 4.4 6.0 11.2 19.9 24.0 25.9 26.9 20.6 10.3 9.1 5.2 14.0 1988 -0.6 1.3 7.4 12.7 16.5 24.1 24.9 23.2 19.6 13.7 9.3 5.0 13.1 1989 -3.4 -3.4 6.9 13.9 16.9 24.0 27.8 26.1 21.0 16.1 8.0 4.3 13.2 1990 -0.3 1.4 6.0 11.6 18.4 24.3 25.2 24.6 22.4 13.2 9.0 0.7 13.0 1991 -0.4 1.3 5.9 13.6 15.2 21.6 25.6 24.3 19.5 13.6 6.5 2.9 12.5 1992 -0.9 1.7 2.5 10.2 13.3 21.0 24.4 20.8 18.1 12.3 9.1 2.9 11.3 1993 -2.0 1.0 5.0 12.3 16.6 21.2 23.8 23.3 20.5 11.3 4.5 2.5 11.7 1994 1.3 -0.0 6.6 12.3 17.9 20.3 24.0 24.3 17.0 11.9 9.4 1.3 12.2 1995 2.5 2.5 6.4 12.7 18.0 21.8 25.3 25.4 19.3 11.6 8.4 1.2 12.9 1996 0.0 1.2 4.5 10.6 18.0 21.7 25.1 24.1 21.4 12.6 5.4 4.4 12.4 1997 2.0 -1.2 4.2 12.8 16.9 22.7 25.7 25.3 19.7 15.0 6.8 3.3 12.8 1998 -0.8 0.1 6.4 13.9 16.8 23.2 24.8 24.3 19.8 13.6 9.8 5.8 13.2 1999 1.5 6.0 6.0 11.5 16.5 22.9 23.3 25.3 19.8 14.3 5.7 4.6 13.1 2000 1.5 1.2 5.8 16.2 19.7 22.0 24.8 24.6 20.9 12.3 5.2 3.8 13.2 2001 0.4 3.5 7.9 14.4 19.7 22.7 24.4 24.6 20.4 13.7 8.5 5.3 13.8 2002 2.4 2.5 8.3 11.0 15.5 21.5 24.6 25.3 21.9 17.0 7.9 -0.6 13.1 2003 1.6 3.1 4.7 10.7 14.7 20.1 24.8 23.8 19.3 16.5 6.1 2.4 12.3 2004 3.2 5.3 7.4 10.6 17.4 22.9 23.0 24.8 19.9 12.9 9.3 1.0 13.1 2005 0.6 1.0 7.6 12.7 17.0 21.9 26.1 23.5 21.7 14.8 6.3 4.7 13.2 MEAN 0.9 1.8 6.4 13.1 17.6 22.8 25.6 24.6 20.4 13.6 7.7 3.0 13.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 2 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF MINIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 3.8 ***** 11.3 16.4 17.3 15.0 11.1 6.1 2.2 -0.8 ****** 1978 -4.3 -3.4 0.2 7.1 9.3 13.0 16.4 14.3 11.7 6.5 0.1 0.8 6.0 1979 -4.2 -1.1 0.8 8.2 8.5 14.4 17.4 13.5 12.2 8.9 0.0 0.1 6.6 1980 -4.3 -6.4 1.7 8.6 11.2 14.2 16.8 16.4 11.2 5.9 3.8 -1.1 6.5 1981 -1.3 -1.3 2.3 6.1 11.1 14.0 18.3 16.8 11.6 6.0 1.6 -1.4 7.0 1982 -5.2 -5.2 -0.4 8.0 11.9 15.9 17.5 15.8 11.1 6.9 0.9 -4.6 6.0 1983 -3.0 -2.4 -0.2 7.0 13.9 17.0 19.8 18.6 13.4 4.8 3.6 -2.8 7.5 1984 -2.9 -6.3 3.5 7.0 10.3 15.4 18.6 18.9 12.4 4.9 4.3 -5.8 6.7 1985 -2.9 -0.7 -0.8 7.6 11.7 17.0 18.0 14.6 11.8 5.4 3.1 -1.4 7.0 1986 -5.0 -1.2 -2.4 6.1 11.0 14.5 17.6 15.0 11.8 9.3 1.8 -2.2 6.4 1987 -1.1 -1.0 2.3 4.7 11.7 14.3 16.5 17.6 12.2 3.7 2.7 -0.6 6.9 1988 -4.4 -2.4 2.2 7.0 10.5 15.7 18.3 16.8 12.9 6.8 3.4 0.2 7.2 1989 -7.1 -8.3 1.8 6.6 9.4 16.3 19.0 17.5 12.6 8.3 1.5 1.1 6.6 1990 -3.5 -2.6 0.4 5.6 11.5 16.4 18.3 18.0 14.0 6.5 2.5 -4.3 6.9 1991 -4.4 -3.0 2.2 7.5 9.5 14.6 17.7 16.8 13.1 6.9 1.5 -1.3 6.8 1992 -4.4 -2.3 -1.4 5.6 8.2 14.9 17.6 14.4 10.5 4.8 2.5 -0.7 5.8 1993 -6.5 -2.6 0.3 6.5 11.1 14.2 17.4 15.9 13.4 4.2 1.5 -1.5 6.2 1994 -2.3 -3.6 2.1 6.0 10.4 14.0 17.3 18.1 9.5 6.0 4.6 -2.9 6.6 1995 -1.5 -2.1 -0.0 7.3 10.2 14.5 18.8 18.1 11.8 5.4 1.9 -3.1 6.8 1996 -4.5 -3.0 0.9 5.9 11.3 14.8 18.0 16.2 14.4 6.0 -0.3 -1.2 6.5 1997 -2.6 -6.1 -0.7 6.4 10.5 16.2 18.7 16.8 12.8 8.4 2.3 -0.6 6.8 1998 -4.2 -3.1 1.0 7.9 10.5 15.1 18.4 17.9 12.6 6.6 4.0 1.3 7.3 1999 -2.5 0.0 1.1 5.4 9.7 15.5 17.1 17.3 12.9 6.7 2.3 0.1 7.1 2000 -3.1 -3.1 0.2 8.2 12.3 14.5 16.8 16.1 14.9 7.5 1.2 0.3 7.2 2001 -3.3 -1.7 2.2 8.2 13.2 15.9 17.8 17.6 13.2 8.4 4.1 1.3 8.1 2002 -1.4 -1.3 2.5 6.9 10.5 14.5 17.0 17.9 13.6 10.0 3.6 -4.5 7.4 2003 -1.8 -0.5 0.8 6.2 8.6 13.5 18.8 16.6 12.0 8.9 1.9 -1.0 7.0 2004 -0.9 -0.2 2.2 4.9 10.9 14.8 17.1 17.0 12.7 5.9 4.5 -2.5 7.2 2005 -2.8 -3.2 2.8 6.2 10.5 15.4 18.9 16.8 13.9 8.4 1.3 0.6 7.4 MEAN -3.4 -2.8 1.1 6.7 10.7 15.1 17.8 16.6 12.5 6.7 2.4 -1.3 6.8 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 3 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF MAXIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 18.5 ***** 23.9 31.8 32.8 31.7 28.7 19.5 13.7 7.8 ****** 1978 7.3 7.0 13.2 20.1 21.9 27.3 31.7 31.5 30.8 22.8 10.3 11.6 19.6 1979 5.9 8.4 12.4 21.1 22.2 28.3 34.1 30.7 28.9 24.0 16.7 8.8 20.1 1980 4.9 2.8 11.9 23.1 25.5 29.8 34.0 31.9 28.6 19.8 15.6 10.2 19.8 1981 9.7 9.9 15.6 18.4 23.4 27.9 31.9 32.7 29.6 21.2 17.5 10.7 20.7 1982 6.2 4.3 11.6 25.2 26.5 30.5 33.1 31.3 27.3 19.4 10.4 7.2 19.4 1983 6.2 11.0 12.5 19.9 27.4 31.4 35.9 33.3 28.8 23.0 18.0 8.9 21.4 1984 8.5 3.5 13.9 21.9 22.9 29.9 35.3 34.4 28.4 20.8 15.2 3.4 19.9 1985 6.5 11.4 11.3 23.1 28.0 33.5 30.7 28.8 28.8 19.2 14.6 7.0 20.3 1986 7.5 8.8 7.3 17.7 24.9 28.8 32.6 30.2 27.9 21.7 12.2 6.8 18.9 1987 10.5 10.6 11.4 18.5 26.6 31.0 31.6 32.7 26.4 15.3 14.7 11.0 20.0 1988 4.1 6.4 13.7 19.3 23.4 31.1 31.5 29.9 26.6 21.1 16.3 11.4 19.6 1989 1.1 2.3 12.9 20.3 23.6 30.8 32.6 31.9 27.4 23.3 15.1 8.3 19.1 1990 3.9 6.3 12.7 18.0 25.7 31.5 32.3 31.6 30.7 20.5 17.1 6.6 19.7 1991 4.6 6.5 10.5 19.9 20.9 28.0 32.6 31.6 27.0 21.2 12.9 8.4 18.7 1992 3.7 7.5 7.5 17.7 19.3 27.6 32.0 27.9 26.1 20.9 17.3 7.9 18.0 1993 3.2 6.0 11.5 19.8 23.2 29.2 32.1 31.1 29.2 19.5 9.2 8.7 18.6 1994 6.8 5.2 13.1 19.5 25.7 27.6 31.8 32.0 25.1 18.9 16.6 7.6 19.2 1995 9.1 9.6 14.2 20.0 25.8 29.4 33.2 33.7 28.1 19.7 17.7 7.6 20.7 1996 6.5 7.8 10.0 16.9 25.3 29.2 32.7 32.4 29.9 21.1 12.6 12.2 19.7 1997 7.3 5.2 10.0 19.8 23.3 29.8 33.3 33.8 27.4 22.9 12.7 8.3 19.5 1998 3.4 4.8 12.5 20.8 23.1 30.8 31.4 31.4 27.5 21.8 17.2 12.2 19.7 1999 6.9 13.6 12.5 18.6 24.5 30.5 30.3 33.1 27.7 22.9 10.5 11.1 20.2 2000 7.0 7.0 12.7 24.0 27.1 29.2 32.2 32.7 27.4 18.2 10.7 9.0 19.8 2001 6.0 10.4 15.8 22.4 27.8 30.2 31.8 31.9 28.3 20.6 15.2 11.4 21.0 2002 7.4 8.1 16.5 16.8 21.4 28.5 32.0 33.0 30.5 25.8 14.2 4.4 19.9 2003 6.8 8.5 10.4 16.4 21.2 26.8 32.1 31.6 27.2 24.7 11.9 8.0 18.8 2004 8.8 12.4 13.8 17.1 24.8 30.5 29.7 32.7 27.7 21.4 15.2 5.9 20.0 2005 5.7 6.8 14.1 20.2 23.9 28.6 33.3 30.1 30.1 22.5 13.4 10.6 19.9 MEAN 6.3 7.6 12.5 19.9 24.3 29.6 32.4 31.8 28.2 21.2 14.3 8.7 19.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 4 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 14.7 ***** 12.6 15.4 15.5 16.7 17.6 13.4 11.5 8.6 ****** 1978 11.6 10.4 13.0 13.0 12.6 14.3 15.3 17.2 19.1 16.3 10.2 10.8 13.6 1979 10.1 9.5 11.6 12.9 13.7 13.9 16.7 17.2 16.7 15.1 16.7 8.7 13.5 1980 9.2 9.2 10.2 14.5 14.3 15.6 17.2 15.5 17.4 13.9 11.8 11.3 13.3 1981 11.0 11.2 13.3 12.3 12.3 13.9 13.6 15.9 18.0 15.2 15.9 12.1 13.7 1982 11.4 9.5 12.0 17.2 14.6 14.6 15.6 15.5 16.2 12.5 9.5 11.8 13.4 1983 9.2 13.4 12.7 12.9 13.5 14.4 16.1 14.7 15.4 18.2 14.4 11.7 13.9 1984 11.4 9.8 10.4 14.9 12.6 14.5 16.7 15.5 16.0 15.9 10.9 9.2 13.2 1985 9.4 12.1 12.1 15.5 16.3 16.5 12.7 14.2 17.0 13.8 11.5 8.4 13.3 1986 12.5 10.0 9.7 11.6 13.9 14.3 15.0 15.2 16.1 12.4 10.4 9.0 12.5 1987 11.6 11.6 9.1 13.8 14.9 16.7 15.1 15.1 14.2 11.6 12.0 11.6 13.1 1988 8.5 8.8 11.5 12.3 12.9 15.4 13.2 13.1 13.7 14.3 12.9 11.2 12.4 1989 8.2 10.6 11.1 13.7 14.2 14.5 13.6 14.4 14.8 15.0 13.6 7.2 12.5 1990 7.4 8.9 12.3 12.4 14.2 15.1 14.0 13.6 16.7 14.0 14.6 10.9 12.8 1991 9.0 9.5 8.3 12.4 11.4 13.4 14.9 14.8 13.9 14.3 11.4 9.7 11.9 1992 8.1 9.8 8.9 12.1 11.1 12.7 14.4 13.5 15.6 16.1 14.8 8.6 12.2 1993 9.7 8.6 11.2 13.3 12.1 15.0 14.7 15.2 15.8 15.3 7.7 10.2 12.4 1994 9.1 8.8 11.0 13.5 15.3 13.6 14.5 13.9 15.6 12.9 12.0 10.5 12.6 1995 10.6 11.7 14.2 12.7 15.6 14.9 14.4 15.6 16.3 14.3 15.8 10.7 13.9 1996 11.0 10.8 9.1 11.0 14.0 14.4 14.7 16.2 15.5 15.1 12.9 13.4 13.2 1997 9.9 11.3 10.7 13.4 12.8 13.6 14.6 17.0 14.6 14.5 10.4 8.9 12.7 1998 7.6 7.9 11.5 12.9 12.6 15.7 13.0 13.5 14.9 15.2 13.2 10.9 12.4 1999 9.4 13.6 11.4 13.2 14.8 15.0 13.2 15.8 14.8 16.2 8.2 11.0 13.1 2000 10.1 10.1 12.5 15.8 14.8 14.7 15.4 16.6 12.5 10.7 9.5 8.7 12.6 2001 9.3 12.1 13.6 14.2 14.6 14.3 14.0 14.3 15.1 12.2 11.1 10.1 12.9 2002 8.8 9.4 14.0 9.9 10.9 14.0 15.0 15.1 16.9 15.8 10.6 8.9 12.5 2003 8.6 9.0 9.6 10.2 12.6 13.3 13.3 15.0 15.2 15.8 10.0 9.0 11.8 2004 9.7 12.6 11.6 12.2 13.9 15.7 12.6 15.7 15.0 15.5 10.7 8.4 12.8 2005 8.5 10.0 11.3 14.0 13.4 13.2 14.4 13.3 16.2 14.1 12.1 10.0 12.5 MEAN 9.7 10.4 11.4 13.2 13.6 14.5 14.6 15.2 15.7 14.5 11.9 10.0 12.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 5 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF MEAN DAILY TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 11.1 ***** 17.6 24.1 25.0 23.3 19.9 12.8 8.0 3.5 ****** 1978 1.5 1.8 6.7 13.6 15.6 20.2 24.0 22.9 21.2 14.6 5.2 6.2 12.8 1979 0.8 3.6 6.6 14.7 15.3 21.4 25.7 22.1 20.5 16.5 8.4 4.4 13.3 1980 0.3 -1.8 6.8 15.8 18.3 22.0 25.4 24.1 19.9 12.9 9.7 4.5 13.2 1981 4.2 4.3 9.0 12.3 17.2 21.0 25.1 24.8 20.6 13.6 9.6 4.7 13.9 1982 0.5 -0.5 5.6 16.6 19.2 23.2 25.3 23.6 19.2 13.1 5.6 1.3 12.7 1983 1.6 4.3 6.1 13.5 20.6 24.2 27.8 25.9 21.1 13.9 10.8 3.1 14.4 1984 2.8 -1.4 8.7 14.5 16.6 22.7 27.0 26.7 20.4 12.8 9.8 -1.2 13.3 1985 1.8 5.4 5.3 15.4 19.9 25.3 24.4 21.7 20.3 12.3 8.9 2.8 13.6 1986 1.3 3.8 2.5 11.9 18.0 21.7 25.1 22.6 19.9 15.5 7.0 2.3 12.6 1987 4.7 4.8 6.8 11.6 19.2 22.6 24.0 25.2 19.3 9.5 8.7 5.2 13.5 1988 -0.1 2.0 7.9 13.2 16.9 23.4 24.9 23.3 19.8 14.0 9.9 5.8 13.4 1989 -3.0 -3.0 7.3 13.5 16.5 23.5 25.8 24.7 20.0 15.8 8.3 4.7 12.8 1990 0.2 1.8 6.6 11.8 18.6 24.0 25.3 24.8 22.4 13.5 9.8 1.2 13.3 1991 0.1 1.7 6.4 13.7 15.2 21.3 25.1 24.2 20.0 14.1 7.2 3.6 12.7 1992 -0.4 2.6 3.0 11.6 13.7 21.3 24.8 21.1 18.3 12.9 9.9 3.6 11.9 1993 -1.6 1.7 5.9 13.2 17.1 21.7 24.8 23.5 21.3 11.9 5.3 3.6 12.4 1994 2.2 0.8 7.6 12.8 18.1 20.8 24.6 25.0 17.3 12.5 10.6 2.4 12.9 1995 3.8 3.8 7.1 13.6 18.0 21.9 26.0 25.9 20.0 12.5 9.8 2.2 13.7 1996 1.0 2.4 5.4 11.4 18.3 22.0 25.3 24.3 22.1 13.5 6.2 5.5 13.1 1997 2.4 -0.4 4.7 13.1 16.9 23.0 26.0 25.3 20.1 15.7 7.5 3.8 13.2 1998 -0.4 0.8 6.7 14.3 16.8 22.9 24.9 24.7 20.1 14.2 10.6 6.8 13.5 1999 2.2 6.8 6.8 12.0 17.1 23.0 23.7 25.2 20.3 14.8 6.4 5.6 13.7 2000 2.0 1.9 6.5 16.1 19.7 21.8 24.5 24.4 21.2 12.8 6.0 4.7 13.5 2001 1.4 4.3 9.0 15.3 20.5 23.0 24.8 24.8 20.7 14.5 9.7 6.3 14.5 2002 3.0 3.4 9.5 11.9 16.0 21.5 24.5 25.5 22.1 17.9 8.9 -0.0 13.7 2003 2.5 4.0 5.6 11.3 14.9 20.1 25.4 24.1 19.6 16.8 6.9 3.5 12.9 2004 4.0 6.1 8.0 11.0 17.9 22.6 23.4 24.8 20.2 13.6 9.9 1.7 13.6 2005 1.5 1.8 8.4 13.2 17.2 22.0 26.1 23.4 22.0 15.5 7.3 5.6 13.7 MEAN 1.4 2.4 6.8 13.3 17.5 22.4 25.1 24.2 20.3 13.9 8.3 3.7 13.3 SD 1.75 2.38 1.81 1.57 1.68 1.23 0.92 1.29 1.10 1.71 1.72 1.94 1.59 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 6 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M TEMPERATURE RECORDS LOWEST IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** -4.0 ***** 5.0 13.0 15.0 11.0 5.0 -3.0 -2.0 -8.0 ****** DAY ** ** 10 ** 3 2 3 20 8 25 28 26 1978 -15.0 -13.0 -11.0 0.0 1.0 8.0 11.0 8.0 5.0 1.0 -7.0 -9.0 -15.0 DAY 23 7 1 17 2 4 9 24 29 7 6 24 1979 -12.0 -14.0 -9.0 1.0 2.0 10.0 13.0 8.0 6.0 5.0 -6.0 -9.0 -14.0 DAY 14 20 6 18 1 1 2 22 25 10 20 23 1980 -16.0 -19.0 -6.0 0.0 6.0 10.0 11.0 8.0 6.0 -1.0 -2.0 -5.0 -19.0 DAY 26 4 5 18 8 2 1 26 24 24 25 16 1981 -6.0 -7.0 -5.0 -7.0 4.0 9.0 14.0 13.0 4.0 -1.0 -3.0 -8.0 -8.0 DAY 15 3 1 3 4 2 29 7 24 31 9 31 1982 -17.0 -15.8 -4.5 0.8 5.5 12.0 12.2 9.8 5.8 -3.6 -4.6 -12.4 -17.0 DAY 23 8 1 4 11 1 1 31 23 26 18 10 1983 -14.0 -8.2 -5.0 3.2 6.0 11.4 16.0 13.5 7.0 -1.4 -2.8 -11.0 -14.0 DAY 28 1 1 3 1 1 4 28 30 22 27 25 1984 -7.8 -17.0 -2.4 0.2 1.2 12.8 14.5 16.4 6.4 -0.4 -0.2 -16.4 -17.0 DAY 22 7 1 5 2 17 8 8 29 29 30 31 1985 -14.2 -8.0 -9.4 1.0 7.2 10.0 15.0 10.4 7.4 -1.0 -4.0 -13.6 -14.2 DAY 1 24 5 18 8 12 20 29 25 24 26 8 1986 -18.4 -7.4 -7.8 1.4 5.6 9.4 11.4 10.8 7.2 1.2 -6.0 -13.6 -18.4 DAY 22 3 17 26 19 11 23 13 11 17 14 12 1987 -7.0 -10.6 -5.0 -2.0 4.0 11.0 10.0 12.2 3.8 -1.8 -4.0 -8.2 -10.6 DAY 22 12 23 2 7 1 5 31 24 29 30 2 1988 -13.2 -14.6 -2.8 -1.0 6.2 11.6 15.0 12.4 6.0 2.4 -3.4 -6.0 -14.6 DAY 24 8 26 7 6 1 3 10 27 3 26 30 1989 -15.4 -15.0 -3.2 0.6 0.2 10.2 15.2 12.4 5.0 -0.2 -5.4 -1.8 -15.4 DAY 10 4 1 3 2 9 31 21 23 25 23 20 1990 -9.2 -9.6 -7.0 -0.2 8.0 11.4 12.0 14.8 9.0 -3.0 -2.4 -25.0 -25.0 DAY 11 7 21 8 15 8 14 31 27 16 18 30 1991 -15.6 -13.6 -7.6 0.6 4.0 10.0 13.0 9.4 4.8 1.4 -6.0 -7.6 -15.6 DAY 2 12 12 14 26 25 15 24 28 14 25 27 1992 -13.6 -9.0 -13.6 1.2 0.2 11.4 15.0 5.4 5.4 -1.0 -8.6 -10.8 -13.6 DAY 27 12 13 17 6 16 12 31 1 18 27 29 1993 -17.0 -17.6 -8.0 2.2 4.8 10.4 14.0 13.0 6.0 -2.0 -5.6 -8.6 -17.6 DAY 20 17 24 13 10 7 30 26 28 9 15 1 1994 -8.4 -9.2 -2.0 -5.4 4.6 9.0 14.0 14.4 3.6 -0.6 -0.6 -8.6 -9.2 DAY 22 11 3 5 8 7 4 10 16 27 11 28 1995 -7.0 -9.2 -6.0 0.6 6.4 8.4 13.6 14.0 4.0 -3.8 -4.6 -8.4 -9.2 DAY 25 26 6 8 10 1 25 7 28 19 30 11 1996 -12.6 -18.6 -4.2 -2.8 5.8 10.0 14.4 8.4 7.5 0.0 -5.0 -10.8 -18.6 DAY 16 4 1 6 2 17 15 31 25 20 14 7 1997 -14.0 -18.2 -8.4 -1.0 4.2 12.6 14.5 8.4 6.4 3.0 -2.8 -5.6 -18.2 DAY 31 2 9 13 7 20 1 27 16 21 30 29 1998 -11.0 -9.8 -10.6 1.0 3.6 10.0 15.0 13.8 4.4 -2.0 -0.6 -4.4 -11.0 DAY 15 23 1 3 3 1 3 26 13 10 26 23 1999 -13.0 -5.4 -8.2 0.2 4.4 12.4 12.0 13.2 4.8 0.8 -3.2 -5.0 -13.0 DAY 3 22 19 12 22 1 13 18 29 28 30 1 2000 -12.0 -13.8 -9.8 1.2 5.8 6.2 11.8 12.0 10.2 3.0 -4.2 -4.6 -13.8 DAY 11 1 16 3 11 14 26 11 27 19 11 30 2001 -11.6 -7.6 -8.0 3.6 9.6 9.8 12.8 12.8 5.6 1.8 -1.6 -7.2 -11.6 DAY 29 1 12 19 1 2 30 14 20 12 20 22 2002 -8.6 -8.6 -8.2 2.0 5.0 10.0 14.2 9.4 9.0 4.2 -1.6 -10.6 -10.6 DAY 16 7 11 6 9 5 23 14 29 24 19 28 2003 -9.2 -11.0 -10.0 0.0 -0.2 4.0 15.0 12.6 1.6 5.0 -4.6 -13.0 -13.0 DAY 22 18 3 18 2 7 5 31 28 8 24 13 2004 -7.8 -5.0 -3.8 -0.2 5.4 10.2 12.6 12.4 6.4 0.0 -6.2 -8.6 -8.6 DAY 1 1 18 6 7 1 13 22 26 9 29 30 2005 -10.4 -8.8 -5.2 -2.0 4.0 10.4 15.6 12.4 9.6 1.6 -4.4 -7.6 -10.4 DAY 15 17 27 6 8 11 26 20 30 27 28 31 1977-2005 -18.4 -19.0 -13.6 -7.0 -0.2 4.0 10.0 5.4 1.6 -3.8 -8.6 -25.0 -25.0 YEAR-DAY 86-22 80- 4 92-13 81- 3 3- 2 3- 7 87- 5 92-31 3-28 95-19 92-27 90-30 90 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 7 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M TEMPERATURE RECORDS HIGHEST IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 27.0 ***** 30.0 37.0 38.0 38.0 34.0 32.0 18.0 19.0 ****** DAY ** ** 20 ** 14 21 14 13 26 5 2 6 1978 16.0 18.0 24.0 30.0 31.0 36.0 40.0 36.0 36.0 28.0 17.0 21.0 40.0 DAY 4 21 31 25 14 21 1 13 12 13 1 12 1979 17.0 19.0 22.0 30.0 28.0 34.0 39.0 36.0 36.0 32.0 27.0 16.0 39.0 DAY 4 15 19 9 16 30 12 18 8 4 3 6 1980 14.0 8.0 24.0 29.0 34.0 37.0 37.0 39.0 35.0 33.0 22.0 18.0 39.0 DAY 6 22 30 23 23 7 9 20 6 4 12 5 1981 14.0 16.0 24.0 29.0 32.0 35.0 39.0 35.0 37.0 26.0 26.0 17.0 39.0 DAY 10 8 21 25 15 16 12 7 14 3 13 17 1982 14.8 11.6 21.2 32.0 35.2 38.0 37.0 38.2 31.6 26.8 19.6 14.6 38.2 DAY 7 4 24 19 19 8 6 4 8 5 8 23 1983 16.6 17.0 20.2 27.7 32.4 37.0 40.2 42.3 35.2 30.6 24.2 19.0 42.3 DAY 2 20 5 18 17 20 23 15 8 2 13 2 1984 13.0 14.6 20.4 29.6 31.2 35.4 39.4 41.5 34.0 30.4 21.0 13.4 41.5 DAY 6 12 22 23 28 14 26 28 2 19 5 14 1985 13.0 21.0 25.0 33.8 35.2 41.5 39.0 33.6 33.2 27.2 21.0 19.2 41.5 DAY 12 16 21 24 31 26 5 6 7 20 4 3 1986 15.0 19.6 17.0 26.6 30.6 36.3 38.4 36.6 33.6 30.3 26.0 14.5 38.4 DAY 18 27 6 16 26 30 31 1 23 4 4 30 1987 17.0 20.0 17.8 28.0 33.8 35.6 37.0 37.2 36.8 28.6 26.0 19.6 37.2 DAY 26 4 9 17 24 18 19 24 5 2 7 20 1988 10.2 18.0 23.5 29.8 34.4 37.4 36.6 36.7 35.0 28.0 25.0 17.2 37.4 DAY 6 24 21 23 28 15 3 12 9 27 10 11 1989 8.2 9.7 21.6 27.0 32.8 36.8 35.8 35.8 35.2 32.8 22.6 15.0 36.8 DAY 2 28 26 18 31 23 13 9 2 7 30 11 1990 13.0 15.4 20.2 32.6 34.4 38.4 38.0 38.0 38.0 27.6 24.2 20.0 38.4 DAY 23 19 13 29 12 27 29 7 14 1 7 5 1991 12.6 18.6 20.4 28.6 33.4 35.0 39.5 35.8 36.4 25.7 21.5 18.0 39.5 DAY 31 27 30 26 30 27 7 17 2 27 1 1 1992 11.0 18.6 19.2 26.8 27.0 33.2 37.2 36.2 33.5 28.0 22.0 17.8 37.2 DAY 20 24 30 13 30 30 22 24 25 13 7 16 1993 14.0 12.8 21.2 30.8 29.7 36.6 37.4 35.2 35.4 32.7 20.2 16.0 37.4 DAY 29 27 30 20 18 28 3 14 3 1 11 23 1994 15.0 16.2 21.0 31.0 32.6 34.8 39.6 37.4 29.6 25.6 22.5 15.2 39.6 DAY 31 1 21 25 28 16 20 29 1 19 8 3 1995 17.2 17.8 22.6 28.4 30.6 36.2 40.0 40.0 34.4 29.4 25.6 15.2 40.0 DAY 17 2 25 3 5 29 12 12 19 3 11 31 1996 15.8 15.0 22.0 25.0 32.8 37.6 35.6 38.2 38.0 27.6 19.0 19.0 38.2 DAY 6 18 31 13 17 1 24 12 8 25 7 29 1997 16.4 14.2 22.8 28.6 34.0 35.6 39.0 39.4 39.0 30.6 21.4 15.6 39.4 DAY 7 22 24 28 28 16 25 14 1 2 4 10 1998 9.6 14.0 24.0 31.6 31.2 35.6 37.8 35.6 34.6 33.0 25.6 25.0 37.8 DAY 1 7 29 18 21 26 5 28 1 1 1 11 1999 14.2 20.4 22.0 26.6 33.6 36.6 36.8 37.6 36.0 29.8 17.8 16.2 37.6 DAY 16 27 26 30 31 28 4 5 15 11 19 28 2000 16.6 16.2 24.4 30.8 35.4 36.6 39.2 37.2 34.2 26.0 18.4 15.6 39.2 DAY 2 24 24 10 26 22 8 3 8 26 2 22 2001 13.4 17.4 23.2 31.8 37.4 37.4 38.4 37.0 34.2 30.2 24.4 20.6 38.4 DAY 11 28 24 6 15 26 9 30 8 6 7 30 2002 18.2 18.2 26.6 28.8 31.4 36.8 39.4 38.8 36.8 33.0 22.4 12.6 39.4 DAY 3 26 28 19 29 13 18 8 11 3 12 9 2003 14.8 16.8 21.8 30.4 28.4 34.0 39.0 35.4 34.0 28.4 21.4 17.2 39.0 DAY 13 4 26 7 17 18 17 12 18 29 10 19 2004 15.2 23.4 25.6 28.4 30.2 35.0 36.2 39.6 34.4 28.4 24.0 13.2 39.6 DAY 14 15 6 23 13 25 23 12 10 3 3 12 2005 13.2 16.8 22.2 28.2 28.6 37.0 39.6 36.0 35.4 30.0 21.6 17.8 39.6 DAY 3 28 31 20 26 20 17 5 3 20 3 17 1977-2005 18.2 23.4 27.0 33.8 37.4 41.5 40.2 42.3 39.0 33.0 27.0 25.0 42.3 YEAR-DAY 2- 3 4-15 77-20 85-24 1-15 85-26 83-23 83-15 97- 1 80- 4 79- 3 98-11 83 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 8 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M 0C COOLING DEGREE DAYS (BASE 21) YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 0.0 ***** 0.0 96.5 125.5 83.5 7.5 0.5 0.0 0.0 ****** 1978 0.0 0.0 0.0 1.5 0.0 23.5 97.5 67.0 28.0 0.0 0.0 0.0 217.5 1979 0.0 0.0 0.0 0.5 0.0 31.0 146.0 47.5 35.0 0.0 0.0 0.0 260.0 1980 0.0 0.0 0.0 0.0 10.0 46.0 137.5 100.5 13.5 2.5 0.0 0.0 310.0 1981 0.0 0.0 0.0 0.0 3.5 39.5 130.5 116.5 38.0 0.0 0.0 0.0 328.0 1982 0.0 0.0 0.0 0.6 16.5 75.1 136.3 80.7 2.5 0.0 0.0 0.0 311.8 1983 0.0 0.0 0.0 0.0 18.2 98.0 211.9 153.6 37.7 0.0 0.0 0.0 519.5 1984 0.0 0.0 0.0 0.0 5.1 56.9 184.5 175.9 18.4 0.0 0.0 0.0 440.8 1985 0.0 0.0 0.0 3.9 21.2 128.0 105.0 41.1 15.0 0.0 0.0 0.0 314.2 1986 0.0 0.0 0.0 0.0 2.5 35.9 131.4 60.0 10.0 0.2 0.0 0.0 240.1 1987 0.0 0.0 0.0 0.0 13.7 55.1 98.3 131.7 11.4 0.0 0.0 0.0 310.4 1988 0.0 0.0 0.0 0.0 5.3 74.6 124.6 78.9 23.6 0.0 0.0 0.0 307.0 1989 0.0 0.0 0.0 0.0 7.2 89.2 143.9 117.3 27.8 2.0 0.0 0.0 387.5 1990 0.0 0.0 0.0 1.3 9.5 93.5 131.9 117.5 52.5 0.0 0.0 0.0 406.3 1991 0.0 0.0 0.0 0.0 4.0 36.1 124.4 99.8 30.8 0.0 0.0 0.0 295.1 1992 0.0 0.0 0.0 0.0 0.0 35.4 120.5 31.1 1.3 0.0 0.0 0.0 188.4 1993 0.0 0.0 0.0 0.0 0.7 48.7 116.4 80.6 39.5 0.0 0.0 0.0 286.0 1994 0.0 0.0 0.0 0.3 7.3 28.1 111.7 125.1 3.9 0.0 0.0 0.0 276.4 1995 0.0 0.0 0.0 0.0 2.8 53.3 154.4 152.3 26.9 0.0 0.0 0.0 389.8 1996 0.0 0.0 0.0 0.0 11.9 44.7 134.9 106.4 54.0 0.0 0.0 0.0 352.0 1997 0.0 0.0 0.0 0.0 9.1 69.6 153.6 134.2 20.5 0.0 0.0 0.0 387.0 1998 0.0 0.0 0.0 2.1 0.6 66.1 122.2 113.3 27.4 2.3 0.0 0.0 334.0 1999 0.0 0.0 0.0 0.0 5.1 62.7 93.7 130.0 29.1 0.0 0.0 0.0 320.6 2000 0.0 0.0 0.0 2.5 18.9 57.5 109.0 105.3 33.7 0.0 0.0 0.0 326.9 2001 0.0 0.0 0.0 0.4 26.8 71.8 119.1 116.6 33.3 0.4 0.0 0.0 368.4 2002 0.0 0.0 0.0 0.0 3.7 45.7 110.0 139.5 38.8 6.0 0.0 0.0 343.7 2003 0.0 0.0 0.0 1.4 0.0 25.6 137.1 95.9 15.7 0.0 0.0 0.0 275.7 2004 0.0 0.0 0.0 0.0 3.5 59.5 81.2 118.5 23.2 0.0 0.0 0.0 285.9 2005 0.0 0.0 0.0 0.0 0.1 48.5 157.1 78.3 32.9 0.0 0.0 0.0 316.9 MEAN 0.0 0.0 0.0 0.5 7.1 58.5 129.3 103.4 25.2 0.5 0.0 0.0 324.5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 9 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M 0C HEATING DEGREE DAYS (BASE 18) YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 215.0 ***** 26.5 0.0 0.0 4.0 5.5 166.0 300.5 450.0 ****** 1978 511.0 453.5 350.5 139.5 92.0 11.5 0.0 0.0 5.0 106.0 383.0 366.0 2418.0 1979 532.5 402.0 354.0 120.0 92.5 0.5 0.0 0.5 15.0 57.0 288.5 421.0 2283.5 1980 549.5 574.0 347.5 75.0 34.0 0.5 0.0 0.0 5.0 175.0 249.0 417.0 2426.5 1981 428.0 383.0 280.0 174.5 51.0 10.0 0.0 0.0 16.5 137.5 253.0 413.0 2146.5 1982 543.2 496.4 384.6 62.9 19.5 0.0 0.0 0.0 8.7 153.2 371.1 518.4 2558.0 1983 494.9 382.9 368.3 137.4 4.0 0.0 0.0 0.0 6.7 132.1 216.3 462.3 2204.9 1984 471.7 563.1 288.1 115.5 66.8 0.0 0.0 0.0 2.4 167.2 246.1 594.9 2515.8 1985 502.0 353.7 394.9 95.9 9.1 0.0 0.0 2.0 4.7 177.2 273.8 470.5 2283.8 1986 501.7 397.5 481.7 182.6 34.4 0.0 0.0 0.0 6.5 88.7 330.8 486.0 2509.8 1987 412.7 368.6 346.7 193.7 23.5 0.0 0.7 0.0 13.7 263.8 280.4 395.8 2299.5 1988 562.5 464.3 312.2 152.8 60.3 0.0 0.0 0.0 20.8 121.4 243.9 379.0 2317.3 1989 651.0 587.2 330.8 136.3 74.7 2.1 0.0 0.0 21.6 88.9 290.1 411.9 2594.5 1990 551.5 452.4 354.5 193.4 29.1 0.0 0.0 0.0 0.6 145.0 246.2 522.2 2495.0 1991 537.4 455.4 360.9 134.0 102.8 2.3 0.0 0.0 29.3 122.4 323.5 447.5 2515.5 1992 569.7 445.8 463.8 152.2 137.1 3.1 0.0 6.8 19.7 159.5 242.1 447.4 2647.2 1993 608.8 456.1 375.0 147.9 49.4 3.3 0.0 0.0 8.4 194.0 379.8 446.8 2669.6 1994 488.7 481.0 321.7 167.3 31.9 9.7 0.0 0.0 38.4 171.6 222.3 484.2 2416.8 1995 440.5 398.4 338.2 133.7 27.2 6.5 0.0 0.0 22.9 171.9 247.0 489.3 2275.4 1996 527.1 451.7 389.6 199.0 34.4 0.0 0.0 0.0 2.6 139.9 355.3 388.5 2488.1 1997 484.6 516.1 413.8 151.0 73.5 1.0 0.0 0.0 6.4 83.4 315.0 439.2 2484.0 1998 570.1 480.3 348.7 128.4 59.1 0.9 0.0 0.0 13.2 124.4 222.8 348.7 2296.7 1999 490.2 312.7 347.1 180.2 59.4 0.0 0.9 0.0 24.3 102.3 347.8 384.9 2249.7 2000 497.0 465.6 357.3 77.3 16.9 11.6 0.0 0.0 2.1 160.3 361.3 413.7 2363.1 2001 515.2 382.2 279.4 89.7 9.9 1.6 0.0 0.0 14.1 113.8 249.7 361.4 2017.0 2002 464.1 408.4 264.0 188.4 85.3 4.7 0.0 0.0 0.0 40.5 271.7 559.4 2286.6 2003 481.2 392.9 385.1 212.2 110.1 17.8 0.0 0.0 25.9 48.4 333.3 449.9 2456.9 2004 434.7 346.7 312.9 213.8 33.0 1.7 0.9 0.0 4.7 136.7 244.0 505.2 2234.3 2005 512.7 453.5 297.0 149.6 38.9 1.8 0.0 0.0 0.0 87.4 319.8 385.1 2245.8 MEAN 512.0 440.2 347.0 146.6 51.2 3.1 0.1 0.5 11.9 132.2 289.9 443.4 2378.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 10 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 2.2 ***** 9.9 13.5 13.4 11.2 7.3 4.6 3.4 -0.8 ****** 1978 -4.8 -2.6 -0.2 5.6 9.5 10.7 11.3 8.5 6.1 5.0 -0.4 -0.8 4.0 1979 -4.9 -1.1 0.1 6.0 5.8 10.0 10.3 5.6 8.5 7.3 -1.6 -0.8 3.8 1980 -5.1 -5.2 1.3 6.2 8.7 8.5 8.7 11.1 8.2 4.9 3.6 -1.2 4.1 1981 -2.8 -2.6 2.6 5.6 9.8 9.3 13.6 10.5 7.3 4.8 -0.5 -1.8 4.6 1982 -5.4 -6.6 -1.2 4.8 9.0 10.8 10.7 9.3 5.5 5.6 0.6 -4.5 3.2 1983 -5.5 -3.3 -2.4 4.6 9.9 10.8 12.4 12.3 8.7 1.4 1.7 -3.0 4.0 1984 -3.3 -5.8 2.7 5.5 8.1 10.0 10.1 12.6 6.7 3.5 3.9 -6.1 4.0 1985 -3.3 -3.4 -3.3 4.1 5.7 10.5 13.6 6.5 3.6 1.3 1.4 -2.0 2.9 1986 -5.6 -2.5 -4.5 3.3 6.1 7.6 9.8 6.8 4.9 5.5 -0.2 -3.1 2.3 1987 -4.5 -2.5 2.1 2.7 7.9 4.6 8.8 9.6 6.1 0.9 -0.8 -5.1 2.5 1988 -4.8 -4.2 0.2 5.7 8.9 8.6 13.0 10.4 7.3 1.9 0.2 -2.0 3.8 1989 -7.5 -7.6 0.7 2.8 4.8 7.7 12.5 9.2 5.6 4.1 -1.5 0.4 2.6 1990 -4.1 -3.1 -1.1 2.9 6.3 8.7 11.9 11.3 7.9 3.1 0.4 -5.0 3.3 1991 -3.5 -4.8 2.0 4.3 7.2 10.0 8.3 8.0 8.7 2.3 0.4 -2.8 3.3 1992 -5.9 -4.3 -2.2 4.6 6.7 11.7 12.7 11.2 5.6 1.9 -1.4 -0.7 3.3 1993 -6.5 -3.2 -1.9 4.3 8.4 9.2 10.8 8.0 7.9 0.2 0.6 -1.9 3.0 1994 -2.6 -4.9 1.2 3.5 6.5 9.6 10.5 11.9 1.2 3.3 2.9 -5.3 3.1 1995 -3.7 -3.4 -2.7 3.6 2.3 7.7 12.4 10.4 5.7 2.9 -3.2 -4.4 2.3 1996 -6.8 -4.2 0.1 2.7 5.9 8.7 9.3 5.1 7.5 1.5 -1.7 -6.5 1.8 1997 -5.2 -7.5 -3.3 3.4 6.7 9.9 11.7 6.9 5.8 5.0 2.2 -1.3 2.9 1998 -4.0 -4.4 -0.9 5.7 7.8 8.0 11.1 11.7 6.9 3.5 1.8 0.3 4.0 1999 -3.1 -2.1 0.1 4.0 7.2 9.4 11.0 7.7 7.9 4.1 1.9 -0.7 3.9 2000 -5.3 -2.9 -0.9 4.0 6.0 6.7 7.6 7.1 11.8 6.5 0.6 -0.1 3.4 2001 -3.7 -4.1 0.3 6.0 7.1 8.4 9.2 10.2 5.1 4.9 1.4 0.2 3.7 2002 -2.7 -1.9 0.2 6.6 8.8 9.0 8.3 10.6 6.6 5.8 2.8 -5.5 4.1 2003 -2.8 -1.0 1.3 5.5 8.3 11.1 13.7 8.9 5.8 4.2 0.9 -1.5 4.5 2004 -0.7 -1.6 2.0 3.8 9.5 7.1 12.5 8.3 7.8 2.4 3.0 -2.1 4.3 2005 -2.1 -3.7 2.0 4.4 9.8 13.6 16.2 10.1 9.5 6.4 1.3 0.1 5.6 MEAN -4.3 -3.7 -0.1 4.5 7.5 9.4 11.2 9.3 6.8 3.8 0.8 -2.3 3.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 11 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 5.16 ***** 8.87 11.25 11.17 9.67 7.49 6.13 5.58 4.15 ***** 1978 3.15 3.72 4.33 6.52 8.56 9.24 9.78 8.37 7.02 6.26 4.25 4.20 6.28 1979 3.09 4.07 4.51 6.81 6.73 8.84 9.31 6.75 8.18 7.36 4.10 4.10 6.15 1980 3.03 3.08 4.84 6.82 8.03 8.23 8.40 9.77 7.97 6.24 5.62 3.99 6.33 1981 3.55 3.62 5.34 6.72 8.69 8.53 11.30 9.29 7.53 6.23 4.21 3.83 6.57 1982 3.05 2.76 3.98 6.28 8.35 9.32 9.58 8.86 6.62 6.67 4.49 3.15 6.09 1983 3.01 3.43 3.65 6.14 8.80 9.40 10.69 10.45 8.23 4.99 4.95 3.68 6.45 1984 3.44 2.91 5.33 6.52 7.76 8.84 9.10 10.67 7.25 5.62 5.72 2.83 6.33 1985 3.49 3.46 3.67 5.93 6.68 9.27 11.32 7.12 6.26 4.98 4.86 3.82 5.91 1986 3.00 3.66 3.21 5.67 6.92 7.69 9.08 7.51 6.62 6.61 4.36 3.59 5.66 1987 3.18 3.69 5.16 5.43 7.80 6.35 8.43 8.95 6.93 4.83 4.25 3.10 5.67 1988 3.11 3.29 4.47 6.80 8.21 8.26 11.04 9.50 7.71 5.14 4.59 3.83 6.33 1989 2.53 2.53 4.62 5.36 6.49 7.82 10.88 8.75 7.05 6.08 4.01 4.49 5.88 1990 3.25 3.50 4.09 5.46 6.91 8.29 10.54 9.91 8.04 5.70 4.53 3.14 6.11 1991 3.39 3.19 5.11 6.01 7.35 8.94 8.11 8.30 8.42 5.19 4.62 3.61 6.02 1992 2.88 3.22 3.81 6.14 7.12 9.88 10.73 9.95 6.99 5.18 4.12 4.17 6.18 1993 2.74 3.51 3.85 6.01 7.99 8.61 9.48 7.98 8.00 4.61 4.59 3.77 5.93 1994 3.64 3.10 4.79 5.80 7.04 8.77 9.32 10.37 5.19 5.72 5.44 3.08 6.02 1995 3.31 3.44 3.78 5.86 5.52 7.77 10.61 9.67 6.98 5.67 3.56 3.14 5.78 1996 2.75 3.31 4.43 5.62 6.88 8.42 8.74 7.11 7.79 5.11 3.97 2.87 5.58 1997 3.07 2.63 3.54 5.76 7.09 8.92 10.38 7.96 6.98 6.39 5.11 3.95 5.98 1998 3.26 3.20 4.21 6.68 7.73 7.96 9.84 10.17 7.80 5.88 5.02 4.47 6.35 1999 3.57 3.80 4.47 5.87 7.35 8.56 9.53 7.93 7.99 5.96 4.99 4.10 6.18 2000 3.03 3.55 4.11 5.94 6.89 7.33 7.95 7.77 10.10 6.89 4.56 4.34 6.04 2001 3.34 3.28 4.55 6.74 7.42 8.25 8.73 9.34 6.77 6.44 4.98 4.43 6.19 2002 3.63 3.81 4.62 7.01 8.08 8.38 8.18 9.75 7.47 6.86 5.43 3.02 6.35 2003 3.57 4.10 4.90 6.54 8.06 9.61 11.42 8.57 7.06 6.04 4.75 3.99 6.55 2004 4.16 3.88 5.04 5.84 8.61 7.61 10.63 8.26 8.01 5.42 5.59 3.74 6.40 2005 3.73 3.36 5.16 6.14 8.73 11.25 13.71 9.18 8.77 7.04 4.82 4.50 7.20 MEAN 3.25 3.40 4.44 6.16 7.61 8.68 9.93 8.89 7.49 5.91 4.73 3.76 6.19 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 12 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 7.39 ***** 12.56 15.82 15.69 13.65 10.67 8.75 7.98 5.94 ***** 1978 4.51 5.32 6.17 9.24 12.11 13.03 13.79 11.83 9.97 8.96 6.11 6.01 8.92 1979 4.44 5.81 6.42 9.67 9.58 12.51 13.13 9.58 11.64 10.50 5.89 5.86 8.75 1980 4.33 4.41 6.89 9.67 11.39 11.64 11.86 13.79 11.32 8.91 8.04 5.71 9.00 1981 5.08 5.17 7.59 9.53 12.31 12.07 15.89 13.13 10.71 8.91 6.03 5.49 9.33 1982 4.37 3.95 5.69 8.94 11.87 13.19 13.48 12.50 9.44 9.52 6.44 4.52 8.66 1983 4.31 4.91 5.23 8.74 12.46 13.29 15.01 14.72 11.67 7.15 7.09 5.29 9.15 1984 4.93 4.18 7.60 9.25 11.00 12.51 12.84 15.01 10.31 8.04 8.18 4.07 8.99 1985 5.00 4.92 5.25 8.42 9.48 13.08 15.88 10.08 8.87 7.10 6.95 5.44 8.37 1986 4.28 5.22 4.59 8.06 9.79 10.83 12.79 10.61 9.39 9.41 6.22 5.12 8.02 1987 4.54 5.26 7.30 7.70 11.03 8.98 11.88 12.60 9.83 6.91 6.08 4.43 8.04 1988 4.44 4.69 6.34 9.61 11.60 11.61 15.46 13.35 10.91 7.33 6.54 5.45 8.94 1989 3.62 3.62 6.56 7.63 9.19 11.02 15.26 12.31 9.95 8.66 5.72 6.40 8.33 1990 4.64 4.98 5.84 7.74 9.77 11.67 14.76 13.94 11.35 8.11 6.47 4.48 8.65 1991 4.84 4.56 7.25 8.52 10.37 12.59 11.41 11.68 11.90 7.41 6.60 5.14 8.52 1992 4.10 4.57 5.42 8.70 10.08 13.89 15.06 14.00 9.90 7.38 5.88 5.95 8.74 1993 3.91 5.00 5.48 8.51 11.28 12.12 13.34 11.28 11.31 6.60 6.56 5.40 8.40 1994 5.19 4.41 6.81 8.23 9.96 12.34 13.08 14.54 7.39 8.16 7.74 4.39 8.52 1995 4.74 4.91 5.38 8.29 7.83 10.95 14.85 13.58 9.87 8.07 5.08 4.50 8.17 1996 3.93 4.71 6.30 7.97 9.75 11.87 12.31 10.03 10.98 7.28 5.69 4.10 7.91 1997 4.38 3.76 5.03 8.15 10.04 12.56 14.54 11.21 9.89 9.08 7.29 5.63 8.46 1998 4.65 4.57 5.98 9.45 10.93 11.25 13.81 14.31 11.01 8.37 7.17 6.40 8.99 1999 5.10 5.41 6.35 8.33 10.39 12.05 13.39 11.17 11.28 8.48 7.12 5.87 8.75 2000 4.32 5.07 5.84 8.42 9.73 10.35 11.20 10.95 14.23 9.81 6.53 6.19 8.55 2001 4.78 4.67 6.46 9.54 10.47 11.61 12.27 13.15 9.58 9.15 7.10 6.32 8.76 2002 5.18 5.44 6.55 9.90 11.41 11.80 11.53 13.68 10.58 9.75 7.75 4.31 8.99 2003 5.09 5.82 6.96 9.26 11.39 13.51 15.98 12.08 9.99 8.58 6.77 5.70 9.26 2004 5.90 5.52 7.18 8.28 12.12 10.73 14.92 11.61 11.34 7.74 7.95 5.33 9.05 2005 5.32 4.79 7.31 8.72 12.31 15.77 19.12 12.91 12.37 10.01 6.89 6.42 10.16 MEAN 4.64 4.84 6.32 8.73 10.77 12.23 13.95 12.53 10.61 8.42 6.75 5.37 8.76 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 13 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 7.83 ***** 10.57 20.10 21.83 21.20 17.23 8.60 3.49 2.36 ***** 1978 2.85 2.45 5.29 8.93 8.41 15.09 22.20 21.46 20.51 10.00 3.15 4.36 10.39 1979 2.78 2.54 5.09 9.26 10.81 17.25 26.85 22.54 15.85 9.56 5.94 2.67 10.93 1980 2.12 1.28 3.69 10.29 12.47 19.56 26.48 19.55 14.83 7.36 4.64 3.01 10.44 1981 3.45 3.82 4.99 6.42 8.84 16.03 19.27 21.23 14.38 6.39 5.70 2.61 9.43 1982 2.38 1.53 3.09 10.15 10.29 17.16 21.40 19.98 15.29 6.36 2.82 2.37 9.40 1983 2.97 3.88 4.91 8.10 13.86 20.37 27.89 22.32 14.82 8.75 5.95 2.66 11.37 1984 2.61 1.71 3.85 8.85 8.99 17.44 26.96 22.11 14.84 7.83 3.87 1.57 10.05 1985 1.97 4.29 4.44 10.03 15.96 22.88 16.02 18.05 17.00 7.94 4.71 2.26 10.46 1986 2.74 2.97 2.76 6.38 12.04 17.13 21.35 19.48 15.67 9.30 4.45 2.41 9.72 1987 4.31 3.65 2.48 6.73 13.45 22.52 23.08 24.07 15.57 6.53 6.48 5.12 11.17 1988 1.63 2.55 4.53 6.33 8.26 19.77 17.25 16.22 13.05 9.16 6.07 3.77 9.05 1989 1.35 1.39 3.88 9.18 11.34 20.32 23.03 22.75 16.38 11.27 5.75 2.12 10.73 1990 1.51 2.12 4.28 6.94 12.52 20.13 18.56 18.18 17.23 8.00 5.93 2.91 9.86 1991 1.30 2.72 2.48 8.22 7.96 14.52 23.05 20.09 12.19 8.92 3.66 2.80 8.99 1992 1.96 2.77 2.34 4.38 6.09 12.01 16.90 11.68 12.02 7.90 6.70 1.91 7.22 1993 1.69 1.88 3.96 6.74 8.39 14.43 17.31 18.39 14.24 7.64 2.29 2.19 8.26 1994 1.79 1.96 3.41 7.31 11.67 12.64 17.99 16.85 12.92 6.42 4.62 2.77 8.36 1995 2.91 2.75 4.84 7.20 13.78 16.62 18.57 20.17 13.95 6.50 7.05 2.41 9.73 1996 2.71 2.42 2.54 5.50 11.93 15.18 20.78 21.41 15.93 8.21 3.80 4.96 9.61 1997 3.07 2.30 3.84 7.81 10.48 16.25 19.76 22.66 14.23 8.89 3.11 2.39 9.56 1998 1.26 1.96 4.46 7.67 9.06 18.56 18.48 17.17 13.40 8.24 5.50 3.21 9.08 1999 2.07 4.49 3.54 5.92 9.68 17.01 16.40 22.56 13.22 8.87 2.34 2.91 9.08 2000 2.99 1.91 4.13 11.26 14.37 17.73 21.49 21.50 11.37 4.95 2.69 2.05 9.70 2001 1.84 3.62 5.20 7.91 13.79 17.34 19.49 19.06 15.78 7.32 4.53 2.98 9.91 2002 2.70 2.32 5.44 3.88 7.10 15.14 20.85 20.17 16.98 10.92 3.40 1.87 9.23 2003 2.07 2.20 2.19 4.86 6.36 11.26 16.53 18.67 13.78 11.21 3.28 1.98 7.86 2004 2.11 4.07 4.24 5.46 8.69 18.68 14.03 21.03 13.07 8.13 4.45 1.40 8.78 2005 1.29 2.21 3.83 7.46 7.83 11.72 16.01 17.17 14.83 7.81 3.23 2.59 8.00 MEAN 2.30 2.64 4.05 7.47 10.52 17.06 20.34 19.92 14.85 8.24 4.47 2.71 9.55 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 14 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 57 *** 59 49 47 45 44 59 73 75 *** 1978 65 73 62 60 65 52 43 40 39 53 69 64 57 1979 70 74 65 60 53 46 37 34 48 58 57 73 56 1980 72 77 71 54 55 43 35 46 49 63 69 71 59 1981 65 64 67 66 64 47 50 42 49 65 60 74 59 1982 70 74 73 54 60 49 43 42 43 65 75 71 60 1983 64 62 59 58 52 44 39 45 50 51 60 70 55 1984 69 74 71 59 62 48 37 46 46 60 73 74 60 1985 75 61 60 54 43 41 55 41 39 53 65 77 55 1986 68 71 68 62 52 45 44 41 43 56 67 72 57 1987 59 67 79 62 51 34 39 39 44 58 58 56 54 1988 77 71 66 67 65 41 53 50 50 50 59 64 59 1989 75 75 69 52 50 40 43 39 43 51 55 78 56 1990 77 75 65 61 50 42 48 49 45 56 59 71 58 1991 81 68 78 59 64 52 39 41 54 50 68 70 60 1992 71 68 74 72 69 59 52 59 50 54 55 79 64 1993 74 76 66 64 62 53 48 42 50 51 78 76 62 1994 78 73 73 60 53 55 47 51 40 61 68 65 60 1995 68 69 59 60 40 45 49 45 48 60 51 70 55 1996 64 71 76 64 51 49 42 36 46 53 64 50 56 1997 64 65 63 58 56 49 48 37 46 57 75 74 58 1998 81 74 64 62 59 43 47 50 49 56 61 72 60 1999 74 61 70 65 59 46 50 37 51 56 79 71 60 2000 67 77 66 49 46 44 38 38 61 70 74 79 59 2001 76 64 65 62 51 46 44 45 41 61 67 74 58 2002 74 76 63 77 68 49 41 45 43 53 73 74 61 2003 76 78 82 75 69 60 54 43 45 49 73 77 65 2004 78 66 74 68 64 43 56 39 50 54 70 82 62 2005 83 75 73 62 67 63 58 47 50 62 73 76 66 MEAN 72 71 68 62 57 47 46 43 47 57 66 72 58 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 15 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 83 *** 82 72 76 70 71 78 90 86 *** 1978 78 87 85 85 86 76 69 66 65 79 85 82 79 1979 82 88 88 83 79 69 61 57 74 82 86 89 78 1980 85 87 88 82 80 67 57 68 74 87 91 87 79 1981 84 83 88 87 86 70 75 69 74 88 82 91 81 1982 84 86 86 75 78 71 66 65 68 85 90 88 79 1983 80 86 83 81 75 66 61 67 76 75 82 89 77 1984 88 89 89 85 84 70 59 68 71 84 92 87 81 1985 89 82 79 79 67 63 76 63 64 78 85 89 76 1986 88 89 87 84 79 72 71 67 70 82 86 86 80 1987 81 89 93 86 77 53 64 69 72 84 84 77 77 1988 90 88 90 88 87 62 76 76 74 72 83 83 81 1989 86 88 88 78 73 63 68 62 64 72 76 91 76 1990 89 90 86 86 72 63 69 72 74 80 84 85 79 1991 91 83 92 82 84 72 60 66 79 73 88 87 80 1992 85 85 89 89 87 81 75 83 75 80 77 91 83 1993 88 90 87 85 84 78 74 66 73 76 91 91 82 1994 92 91 92 84 80 77 71 78 63 83 86 82 82 1995 86 90 83 83 63 69 74 71 72 85 75 87 78 1996 84 88 92 85 74 73 66 58 71 75 85 72 77 1997 82 83 84 82 78 70 73 59 72 82 90 88 79 1998 92 87 86 84 81 68 70 74 72 78 84 89 80 1999 89 86 90 87 80 66 71 57 72 77 92 87 80 2000 84 92 87 73 69 66 60 60 82 89 89 92 79 2001 90 86 86 85 75 68 65 68 67 82 85 89 79 2002 89 91 87 94 86 71 61 67 71 78 91 88 81 2003 89 91 95 91 89 81 77 66 67 74 90 91 83 2004 93 88 90 89 87 67 78 62 76 78 89 92 82 2005 95 91 91 86 91 87 82 70 75 85 91 91 86 MEAN 87 88 88 84 80 70 69 67 72 80 86 87 80 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 16 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 39 *** 45 34 30 30 27 43 55 64 *** 1978 52 61 45 43 52 39 29 25 21 33 55 47 42 1979 58 61 49 41 37 33 23 21 28 38 34 57 40 1980 58 68 55 34 37 26 20 29 29 41 48 52 41 1981 46 46 47 48 44 32 33 25 25 36 35 49 39 1982 53 59 61 33 39 30 27 28 27 46 59 49 43 1983 48 39 38 39 34 28 25 31 30 26 38 48 35 1984 48 56 54 38 42 31 22 28 25 34 50 57 40 1985 55 41 40 31 24 25 36 24 21 30 45 62 36 1986 44 48 47 42 28 24 23 20 21 35 46 53 36 1987 35 46 61 35 30 19 24 23 27 42 39 35 35 1988 57 50 38 43 44 26 34 30 29 31 36 45 39 1989 63 59 48 31 29 23 30 24 30 34 34 61 39 1990 62 55 44 38 33 26 32 29 24 34 37 55 39 1991 67 51 61 39 45 35 23 22 33 29 48 49 42 1992 55 47 55 51 48 38 32 39 29 32 34 64 44 1993 57 58 41 41 40 34 28 23 28 31 61 53 41 1994 59 53 50 37 30 37 28 29 20 39 46 41 39 1995 46 43 35 39 22 27 29 24 26 34 29 45 33 1996 42 49 56 43 30 30 21 18 26 32 39 27 34 1997 42 43 40 34 35 30 25 18 26 32 56 57 37 1998 65 57 40 39 40 23 28 29 29 35 39 50 40 1999 54 37 48 42 38 28 30 21 31 34 60 50 39 2000 47 54 44 27 27 24 21 19 39 50 56 62 39 2001 54 40 41 38 30 27 23 26 22 38 46 54 37 2002 51 55 35 57 50 31 23 26 21 30 51 58 41 2003 57 58 65 57 44 41 33 24 27 28 53 59 46 2004 59 41 54 47 40 25 35 21 31 33 50 65 42 2005 67 54 49 38 42 43 41 28 29 37 50 58 45 MEAN 54 51 48 40 37 30 28 25 27 35 46 53 40 RH=0 =====> RELATIVE HUMIDITY < 0.5% =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 17 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF RELATIVE HUMIDITY AT 03 UTC. IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 81 *** 82 72 76 70 70 76 89 84 *** 1978 74 85 83 83 85 75 69 66 65 78 83 79 77 1979 77 86 87 82 79 69 61 57 73 81 82 85 77 1980 83 85 86 79 79 67 57 67 72 86 88 86 78 1981 81 80 85 84 84 70 75 69 71 85 77 85 79 1982 80 79 87 73 76 69 66 67 63 84 88 87 77 1983 76 85 82 78 72 66 61 66 74 73 77 87 75 1984 85 88 88 83 81 65 59 66 69 81 87 85 78 1985 85 76 77 74 63 61 73 61 58 73 83 86 73 1986 82 87 86 80 72 62 65 61 62 80 85 82 75 1987 72 86 88 82 74 47 65 68 71 81 81 71 74 1988 85 83 84 84 83 56 73 73 70 68 77 76 76 1989 82 84 86 74 65 57 66 62 60 69 72 86 72 1990 84 87 83 80 66 57 65 67 67 78 79 82 75 1991 88 77 88 80 78 69 57 62 74 69 81 82 75 1992 78 80 84 87 83 77 68 75 71 74 70 86 78 1993 83 85 82 81 80 69 67 60 66 71 86 87 76 1994 85 82 87 80 70 69 66 73 58 80 83 76 76 1995 78 86 79 76 59 61 69 63 67 81 69 84 73 1996 80 83 87 76 69 65 62 52 64 71 83 66 72 1997 74 77 79 76 71 64 65 54 65 75 88 84 73 1998 88 83 78 80 73 60 64 71 68 75 78 83 75 1999 86 81 86 81 74 61 66 53 70 76 89 83 76 2000 79 90 83 70 62 62 56 57 79 87 86 88 75 2001 88 80 81 80 69 61 64 63 57 78 80 85 74 2002 82 86 81 89 82 64 57 61 65 74 88 81 76 2003 85 85 93 87 87 75 74 63 63 67 86 88 79 2004 89 83 88 85 80 57 73 57 71 73 82 90 77 2005 89 87 88 81 82 83 73 65 68 81 88 86 81 MEAN 82 83 84 80 75 65 66 64 67 77 82 83 76 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 18 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF RELATIVE HUMIDITY AT 09 UTC. IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 48 *** 49 39 36 35 34 49 65 69 *** 1978 57 66 52 49 55 44 35 29 26 41 60 56 48 1979 64 68 55 50 42 38 29 26 36 45 42 64 47 1980 63 74 64 41 42 33 26 35 37 48 55 57 48 1981 53 52 53 54 52 38 39 31 30 44 42 58 46 1982 59 66 *** 35 43 34 32 32 31 50 60 53 *** 1983 52 47 45 47 40 34 30 35 35 31 42 57 41 1984 55 62 63 47 48 36 25 33 31 40 56 62 47 1985 62 50 45 39 28 29 43 29 27 39 53 69 43 1986 53 55 56 50 36 31 29 27 29 41 52 60 43 1987 43 55 72 48 37 23 30 29 35 47 47 43 42 1988 67 61 48 52 51 31 40 34 35 37 43 52 46 1989 69 65 57 39 34 28 33 30 36 40 41 68 45 1990 69 65 50 47 37 29 36 34 29 40 43 61 45 1991 74 59 69 45 52 41 27 27 37 35 56 56 48 1992 63 57 62 57 54 45 38 44 34 39 40 70 50 1993 64 68 54 50 46 40 33 30 35 38 66 62 49 1994 69 63 61 44 36 41 33 34 26 45 55 51 47 1995 54 57 45 48 26 33 35 30 32 45 37 55 41 1996 51 61 67 54 36 36 26 24 32 38 45 38 42 1997 55 55 48 42 43 37 32 25 32 41 60 62 44 1998 71 64 49 47 46 27 34 35 34 41 49 60 46 1999 61 47 57 52 47 35 36 25 37 43 69 58 47 2000 54 66 54 32 35 30 26 24 47 58 61 70 46 2001 62 52 49 46 36 34 28 32 29 47 52 61 44 2002 62 67 48 66 58 37 28 30 26 39 59 67 49 2003 65 70 73 64 51 48 39 30 33 35 58 66 53 2004 66 49 62 57 46 29 42 24 35 37 56 71 48 2005 76 61 57 42 47 48 45 32 33 43 56 65 50 MEAN 61 60 56 48 43 35 33 31 33 42 52 60 46 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 19 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF RELATIVE HUMIDITY AT 15 UTC. IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 54 *** 56 44 38 39 38 61 76 76 *** 1978 67 74 60 55 63 45 34 33 35 51 73 61 54 1979 71 74 59 55 46 39 28 26 43 55 55 74 52 1980 71 77 67 45 49 33 26 39 46 58 69 71 54 1981 62 62 62 62 58 39 43 33 39 59 54 72 54 1982 68 *** *** 40 50 39 34 35 38 64 77 72 *** 1983 63 57 52 51 45 35 31 39 43 42 55 69 49 1984 69 70 64 51 54 37 26 38 36 56 69 73 54 1985 73 56 55 46 34 32 44 30 29 46 59 76 48 1986 65 65 61 52 38 32 30 28 30 50 65 72 49 1987 54 62 76 52 43 24 32 31 38 57 57 52 48 1988 77 70 63 60 55 32 41 39 41 43 52 62 53 1989 76 76 65 46 42 32 39 31 38 48 50 79 52 1990 78 72 58 53 41 33 40 40 36 50 52 68 52 1991 81 65 76 50 56 43 28 31 45 41 62 65 54 1992 70 62 70 64 58 46 40 48 39 46 47 78 56 1993 73 75 58 53 52 41 36 30 40 40 80 72 54 1994 76 69 66 48 41 46 35 38 30 54 61 59 52 1995 65 58 47 50 29 33 37 32 36 53 41 63 45 1996 55 64 69 56 39 38 28 25 36 46 58 41 46 1997 59 58 53 47 45 38 33 25 35 48 73 72 49 1998 79 69 57 53 50 28 35 38 40 48 54 67 52 1999 71 51 63 54 48 34 41 26 40 45 74 68 51 2000 62 72 57 36 35 31 26 26 51 61 71 76 50 2001 72 57 61 53 39 34 32 33 31 51 60 68 49 2002 71 74 51 71 58 39 29 35 30 43 67 71 53 2003 74 73 75 69 58 47 42 32 35 37 70 75 57 2004 73 57 70 57 56 32 44 29 39 46 65 81 54 2005 82 70 65 52 60 48 49 35 39 55 69 75 58 MEAN 70 66 62 53 48 37 35 33 38 50 63 69 52 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 20 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF DAYS WITH MAXIMUM TEMPERATURE EQUAL 30 AND ABOVE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 0 *** 2 23 26 25 12 1 0 0 *** 1978 0 0 0 2 2 11 24 25 23 0 0 0 87 1979 0 0 0 1 0 12 31 21 15 1 0 0 81 1980 0 0 0 0 9 18 30 24 12 3 0 0 96 1981 0 0 0 0 2 9 25 30 18 0 0 0 84 1982 0 0 0 4 9 17 25 21 8 0 0 0 84 1983 0 0 0 0 5 19 30 25 15 1 0 0 95 1984 0 0 0 0 4 17 30 26 7 1 0 0 85 1985 0 0 0 4 11 24 17 14 14 0 0 0 84 1986 0 0 0 0 3 11 26 19 7 1 0 0 67 1987 0 0 0 0 8 22 22 26 3 0 0 0 81 1988 0 0 0 0 2 19 21 20 5 0 0 0 67 1989 0 0 0 0 5 20 27 27 11 2 0 0 92 1990 0 0 0 2 5 19 25 21 19 0 0 0 91 1991 0 0 0 0 1 10 25 24 12 0 0 0 72 1992 0 0 0 0 0 11 21 6 2 0 0 0 40 1993 0 0 0 1 0 14 26 23 16 1 0 0 81 1994 0 0 0 2 5 9 22 24 0 0 0 0 62 1995 0 0 0 0 2 17 26 28 14 0 0 0 87 1996 0 0 0 0 7 13 26 23 17 0 0 0 86 1997 0 0 0 0 5 18 26 29 8 2 0 0 88 1998 0 0 0 2 2 21 21 23 6 1 0 0 76 1999 0 0 0 0 5 18 17 30 9 0 0 0 79 2000 0 0 0 3 6 15 26 28 7 0 0 0 85 2001 0 0 0 2 11 17 23 24 12 1 0 0 90 2002 0 0 0 0 3 11 24 26 18 5 0 0 87 2003 0 0 0 1 0 9 22 27 10 0 0 0 69 2004 0 0 0 0 2 19 17 28 7 0 0 0 73 2005 0 0 0 0 0 11 27 18 15 1 0 0 72 MEAN 0.0 0.0 0.0 0.9 4.0 15.7 24.4 23.6 11.1 0.7 0.0 0.0 80.4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 21 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF DAYS WITH MAXIMUM TEMPERATURE EQUAL 00 AND BELOW YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 0 *** 0 0 0 0 0 0 0 0 *** 1978 0 4 0 0 0 0 0 0 0 0 0 0 4 1979 2 1 1 0 0 0 0 0 0 0 0 1 5 1980 5 6 0 0 0 0 0 0 0 0 0 0 11 1981 0 0 0 1 0 0 0 0 0 0 0 1 2 1982 5 3 0 0 0 0 0 0 0 0 0 1 9 1983 3 0 0 0 0 0 0 0 0 0 0 0 3 1984 1 8 0 0 0 0 0 0 0 0 0 3 12 1985 0 1 2 0 0 0 0 0 0 0 0 2 5 1986 4 0 4 0 0 0 0 0 0 0 0 3 11 1987 0 0 0 0 0 0 0 0 0 0 0 1 1 1988 4 4 0 0 0 0 0 0 0 0 0 0 8 1989 10 9 0 0 0 0 0 0 0 0 0 0 19 1990 7 1 1 0 0 0 0 0 0 0 0 7 16 1991 1 6 0 0 0 0 0 0 0 0 0 0 7 1992 8 1 3 0 0 0 0 0 0 0 0 0 12 1993 7 3 1 0 0 0 0 0 0 0 0 0 11 1994 0 4 0 0 0 0 0 0 0 0 0 1 5 1995 0 1 0 0 0 0 0 0 0 0 0 0 1 1996 3 2 1 0 0 0 0 0 0 0 0 0 6 1997 2 5 0 0 0 0 0 0 0 0 0 1 8 1998 2 7 2 0 0 0 0 0 0 0 0 0 11 1999 1 0 0 0 0 0 0 0 0 0 0 0 1 2000 3 1 0 0 0 0 0 0 0 0 0 0 4 2001 5 0 1 0 0 0 0 0 0 0 0 0 6 2002 3 2 0 0 0 0 0 0 0 0 0 5 10 2003 1 1 2 0 0 0 0 0 0 0 0 3 7 2004 0 0 0 0 0 0 0 0 0 0 0 1 1 2005 1 4 0 0 0 0 0 0 0 0 0 0 5 MEAN 2.8 2.6 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 7.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 22 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF DAYS WITH MINIMUM TEMPERATURE EQUAL 21 AND ABOVE YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 0 *** 0 0 0 0 0 0 0 0 *** 1978 0 0 0 0 0 0 1 1 0 0 0 0 2 1979 0 0 0 0 0 0 2 1 0 0 0 0 3 1980 0 0 0 0 0 0 2 3 0 0 0 0 5 1981 0 0 0 0 0 0 7 3 0 0 0 0 10 1982 0 0 0 0 0 0 4 3 0 0 0 0 7 1983 0 0 0 0 0 1 16 4 0 0 0 0 21 1984 0 0 0 0 0 0 4 0 0 0 0 0 4 1985 0 0 0 0 0 1 0 0 0 0 0 0 1 1986 0 0 0 0 0 0 1 0 0 0 0 0 1 1987 0 0 0 0 0 0 0 2 0 0 0 0 2 1988 0 0 0 0 0 1 2 0 0 0 0 0 3 1989 0 0 0 0 0 0 3 1 0 0 0 0 4 1990 0 0 0 0 0 0 5 0 0 0 0 0 5 1991 0 0 0 0 0 0 2 1 0 0 0 0 3 1992 0 0 0 0 0 0 0 0 0 0 0 0 0 1993 0 0 0 0 0 0 0 1 0 0 0 0 1 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 1 2 0 0 0 0 3 1996 0 0 0 0 0 0 1 2 0 0 0 0 3 1997 0 0 0 0 0 0 3 2 0 0 0 0 5 1998 0 0 0 0 0 0 2 2 0 0 0 0 4 1999 0 0 0 0 0 0 1 1 0 0 0 0 2 2000 0 0 0 0 0 0 2 1 0 0 0 0 3 2001 0 0 0 0 0 0 3 3 0 0 0 0 6 2002 0 0 0 0 0 0 3 3 0 0 0 0 6 2003 0 0 0 0 0 0 3 0 0 0 0 0 3 2004 0 0 0 0 0 0 0 2 0 0 0 0 2 2005 0 0 0 0 0 0 4 2 0 0 0 0 6 MEAN 0.0 0.0 0.0 0.0 0.0 0.1 2.5 1.4 0.0 0.0 0.0 0.0 4.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 23 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF DAYS WITH MINIMUM TEMPERATURE EQUAL -4 AND BELOW YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 1 *** 0 0 0 0 0 0 0 7 *** 1978 17 11 5 0 0 0 0 0 0 0 6 6 45 1979 16 6 7 0 0 0 0 0 0 0 14 2 45 1980 18 17 2 0 0 0 0 0 0 0 0 7 44 1981 10 10 2 1 0 0 0 0 0 0 0 8 31 1982 16 17 2 0 0 0 0 0 0 0 1 20 56 1983 14 7 3 0 0 0 0 0 0 0 0 11 35 1984 12 22 0 0 0 0 0 0 0 0 0 22 56 1985 13 7 11 0 0 0 0 0 0 0 1 8 40 1986 12 2 11 0 0 0 0 0 0 0 4 9 38 1987 8 4 1 0 0 0 0 0 0 0 1 4 18 1988 17 8 0 0 0 0 0 0 0 0 0 6 31 1989 24 22 0 0 0 0 0 0 0 0 2 0 48 1990 14 8 6 0 0 0 0 0 0 0 0 12 40 1991 13 9 2 0 0 0 0 0 0 0 4 8 36 1992 15 7 9 0 0 0 0 0 0 0 4 4 39 1993 22 8 3 0 0 0 0 0 0 0 2 5 40 1994 11 13 0 1 0 0 0 0 0 0 0 15 40 1995 5 8 4 0 0 0 0 0 0 0 2 11 30 1996 15 10 1 0 0 0 0 0 0 0 5 10 41 1997 8 16 6 0 0 0 0 0 0 0 0 3 33 1998 14 12 3 0 0 0 0 0 0 0 0 1 30 1999 11 3 1 0 0 0 0 0 0 0 0 2 17 2000 13 10 1 0 0 0 0 0 0 0 1 3 28 2001 11 8 3 0 0 0 0 0 0 0 0 3 25 2002 12 6 2 0 0 0 0 0 0 0 0 20 40 2003 8 3 3 0 0 0 0 0 0 0 2 6 22 2004 5 3 0 0 0 0 0 0 0 0 1 9 18 2005 11 10 1 0 0 0 0 0 0 0 2 4 28 MEAN 13.0 9.5 3.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 1.8 7.8 35.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 24 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF DAYS WITH MINIMUM TEMPERATURE EQUAL 00 AND BELOW YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 9 *** 0 0 0 0 0 4 10 19 *** 1978 27 22 15 1 0 0 0 0 0 0 19 14 98 1979 24 18 14 0 0 0 0 0 0 0 18 19 93 1980 27 29 12 1 0 0 0 0 0 2 6 24 101 1981 21 21 11 4 0 0 0 0 0 1 15 26 99 1982 26 24 22 0 0 0 0 0 0 3 11 27 113 1983 21 23 18 0 0 0 0 0 0 6 5 21 94 1984 25 27 4 0 0 0 0 0 0 2 1 29 88 1985 23 17 17 0 0 0 0 0 0 1 6 18 82 1986 22 22 27 0 0 0 0 0 0 0 13 20 104 1987 21 18 9 7 0 0 0 0 0 9 10 20 94 1988 27 24 6 2 0 0 0 0 0 0 9 15 83 1989 31 28 8 0 0 0 0 0 0 1 13 12 93 1990 27 24 13 1 0 0 0 0 0 4 12 23 104 1991 27 19 8 0 0 0 0 0 0 0 12 21 87 1992 25 23 20 0 0 0 0 0 0 3 10 19 100 1993 29 22 16 0 0 0 0 0 0 4 12 25 108 1994 26 25 8 5 0 0 0 0 0 2 6 24 96 1995 25 21 14 0 0 0 0 0 0 6 14 29 109 1996 25 21 10 3 0 0 0 0 0 1 17 17 94 1997 22 24 20 5 0 0 0 0 0 0 9 22 102 1998 29 23 9 0 0 0 0 0 0 2 2 7 72 1999 22 17 12 0 0 0 0 0 0 0 9 15 75 2000 24 25 16 0 0 0 0 0 0 0 13 15 93 2001 26 21 9 0 0 0 0 0 0 0 2 11 69 2002 18 17 10 0 0 0 0 0 0 0 9 25 79 2003 23 15 12 1 1 0 0 0 0 0 13 17 82 2004 20 19 10 2 0 0 0 0 0 1 5 24 81 2005 22 23 5 5 0 0 0 0 0 0 10 15 80 MEAN 24.5 21.9 12.6 1.3 0.0 0.0 0.0 0.0 0.0 1.8 10.0 19.8 91.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 25 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MONTHLY TOTAL OF PRECIPITATION IN MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 18.0 ***** 117.5 12.4 0.0 6.2 0.0 24.8 66.4 18.0 ****** 1978 21.4 68.2 27.5 42.8 71.0 1.9 0.0 0.0 13.0 0.4 25.4 11.9 283.5 1979 37.0 47.6 57.0 31.8 41.1 12.2 0.0 3.0 33.0 14.1 20.0 49.2 346.0 1980 40.8 93.0 42.8 25.9 6.8 5.0 0.0 0.0 5.3 16.9 42.6 25.6 304.7 1981 16.8 18.9 39.0 68.5 84.8 10.1 66.4 1.2 15.3 24.5 17.1 9.8 372.4 1982 41.1 46.3 28.0 3.5 27.9 16.4 13.0 0.1 12.3 26.2 26.9 9.7 251.4 1983 24.8 16.6 18.8 17.7 14.6 0.2 0.0 3.0 4.2 0.7 15.1 27.3 143.0 1984 16.8 20.3 43.1 48.0 36.0 1.7 2.0 0.0 2.6 24.5 47.9 30.5 273.4 1985 26.8 25.2 18.0 16.2 3.9 3.0 0.0 7.3 0.0 14.2 6.8 24.9 146.3 1986 16.6 15.1 21.4 49.2 27.9 34.4 10.7 26.0 7.9 11.1 15.4 55.2 290.9 1987 5.5 22.3 97.3 20.8 32.9 0.0 40.2 2.7 2.2 27.6 8.2 13.8 273.5 1988 41.7 32.7 56.0 53.3 20.0 0.0 27.4 48.0 3.2 1.4 17.7 23.1 324.5 1989 56.4 13.2 41.3 25.4 5.1 1.1 3.2 2.1 1.0 7.5 2.1 82.2 240.6 1990 19.4 18.6 17.6 20.1 3.1 0.0 0.9 0.0 0.0 12.4 13.1 29.1 134.3 1991 23.8 20.6 88.5 30.1 53.9 22.0 0.0 0.0 5.4 14.4 5.8 61.1 325.6 1992 31.6 23.9 61.5 76.9 54.6 32.1 0.4 6.0 0.6 2.7 3.7 39.4 333.4 1993 18.1 50.7 45.7 66.0 17.1 8.3 0.8 0.5 0.2 1.0 38.6 6.8 253.8 1994 63.8 33.2 42.8 10.1 24.4 4.1 0.0 0.0 1.0 29.8 37.8 13.2 260.2 1995 14.7 26.0 28.4 43.7 3.2 13.6 5.1 0.0 17.6 15.8 22.6 3.8 194.5 1996 13.7 33.1 44.3 42.7 26.3 0.0 2.2 0.1 3.1 11.0 10.8 5.6 192.9 1997 20.5 25.3 43.4 26.7 55.6 14.1 2.3 0.0 0.2 35.6 38.2 19.3 281.2 1998 29.1 26.7 34.3 26.2 56.7 1.0 2.3 13.6 7.4 3.0 3.8 7.6 211.7 1999 28.6 18.2 39.1 33.7 33.0 0.0 48.7 10.0 4.2 8.2 64.6 2.8 291.1 2000 46.6 22.6 20.7 0.9 0.1 25.2 5.1 24.0 102.7 26.8 15.4 19.0 309.1 2001 6.0 25.2 17.6 13.6 16.4 0.0 4.1 5.4 0.0 18.2 21.9 10.1 138.5 2002 26.4 34.7 59.2 93.4 47.1 3.7 7.1 0.2 0.0 1.1 34.8 30.0 337.7 2003 23.3 50.6 78.0 89.6 42.6 3.6 0.0 5.0 0.1 2.9 51.1 26.3 373.1 2004 17.6 11.1 29.9 86.8 17.3 1.2 43.4 0.0 0.0 6.4 39.0 34.7 287.4 2005 45.2 18.7 71.5 15.1 62.5 24.3 9.0 10.2 0.0 24.4 50.5 34.2 365.6 MEAN 27.6 30.7 42.4 38.5 34.6 8.7 10.1 6.0 8.4 14.1 26.3 25.0 272.4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 26 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M GREATEST DAILY OF PRECIPITATION IN MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 10.0 ***** 37.0 5.0 0.0 6.0 0.0 15.0 28.0 7.0 ****** DAY ** ** 28 ** 25 1 ** 30 ** 23 14 10 1978 8.0 19.0 7.0 15.0 19.1 1.0 0.0 0.0 13.0 0.1 12.0 3.0 19.1 DAY 22 23 13 15 2 2 ** ** 26 2 19 8 1979 10.0 10.0 25.4 15.0 19.0 5.0 0.0 3.0 17.0 6.0 18.0 10.0 25.4 DAY 11 9 28 26 7 9 ** 20 14 28 5 9 1980 9.0 39.0 10.0 13.4 3.0 5.0 0.0 0.0 3.0 8.0 21.0 14.0 39.0 DAY 24 12 19 5 10 1 ** ** 10 14 18 19 1981 5.0 9.0 11.0 19.0 29.1 4.0 37.1 1.2 15.0 8.0 10.0 3.0 37.1 DAY 2 22 24 2 7 5 20 11 22 9 23 26 1982 15.0 11.0 7.0 2.1 10.0 11.0 13.0 0.1 8.0 8.0 7.3 4.0 15.0 DAY 29 1 25 20 23 25 7 8 14 6 12 7 1983 15.0 8.0 6.2 8.8 7.0 0.2 0.0 2.0 4.0 0.7 5.0 10.0 15.0 DAY 25 22 6 5 7 8 ** 7 14 7 16 12 1984 7.0 4.6 15.0 19.0 13.2 0.8 2.0 0.0 2.0 13.6 16.1 8.3 19.0 DAY 9 5 23 4 2 7 28 ** 18 7 21 4 1985 14.5 8.5 8.0 4.2 3.0 2.0 0.0 7.0 0.0 12.0 3.3 11.1 14.5 DAY 24 2 23 4 18 18 ** 18 ** 28 27 7 1986 9.0 6.0 6.0 16.2 23.0 16.1 8.7 18.0 7.8 10.2 5.3 15.8 23.0 DAY 21 7 8 18 5 9 21 4 30 12 21 3 1987 3.6 9.0 14.0 5.0 19.4 0.0 30.0 1.7 1.2 12.0 4.0 6.2 30.0 DAY 27 11 2 20 6 ** 27 5 29 26 8 28 1988 11.6 10.7 20.2 15.0 14.2 0.0 7.1 41.0 2.0 1.4 7.0 5.0 41.0 DAY 19 26 5 27 3 ** 8 21 30 22 20 20 1989 33.0 5.3 11.1 17.0 3.0 1.0 3.0 1.0 0.6 3.9 1.0 28.0 33.0 DAY 25 24 30 29 8 11 20 5 19 29 1 5 1990 4.0 8.1 5.9 9.4 2.9 0.0 0.5 0.0 0.0 7.0 10.0 10.8 10.8 DAY 7 26 15 3 13 ** 20 ** ** 18 13 28 1991 5.3 7.8 21.9 19.2 16.0 11.0 0.0 0.0 3.0 14.0 2.2 27.0 27.0 DAY 15 5 7 5 7 5 ** ** 26 9 19 13 1992 11.0 7.5 9.0 24.6 20.4 9.0 0.4 2.0 0.6 2.0 3.3 8.4 24.6 DAY 3 25 24 27 13 4 8 11 28 16 26 5 1993 5.1 13.2 17.5 18.2 4.0 3.0 0.8 0.5 0.1 1.0 10.3 1.6 18.2 DAY 19 3 9 13 6 4 8 22 25 29 29 20 1994 12.0 12.0 20.0 4.7 9.0 4.0 0.0 0.0 0.6 8.4 14.4 6.1 20.0 DAY 6 24 12 4 6 5 ** ** 14 16 26 1 1995 7.3 9.3 16.0 20.2 1.7 12.0 3.0 0.0 8.0 9.0 16.1 1.2 20.2 DAY 18 9 18 22 8 23 6 ** 21 13 26 18 1996 11.4 9.0 13.0 26.0 8.1 0.0 1.0 0.1 2.0 6.0 6.6 2.2 26.0 DAY 21 3 13 15 21 ** 9 14 21 31 12 23 1997 9.5 8.6 12.0 12.4 17.7 3.2 2.3 0.0 0.2 12.0 14.4 7.2 17.7 DAY 28 1 18 18 5 2 21 ** 15 31 6 17 1998 8.2 7.8 8.0 11.1 19.1 1.0 1.0 11.0 6.1 1.4 3.0 3.6 19.1 DAY 27 9 14 24 30 4 24 6 27 8 29 4 1999 7.0 5.0 8.0 8.0 17.0 0.0 30.0 10.0 3.7 5.2 14.0 0.7 30.0 DAY 19 17 3 15 11 ** 27 9 28 25 2 3 2000 19.3 6.0 10.0 0.3 0.1 25.0 5.0 14.0 54.3 12.5 11.6 5.0 54.3 DAY 29 15 3 21 10 13 9 7 11 5 6 2 2001 2.1 13.0 6.8 6.0 10.0 0.0 3.1 5.0 0.0 4.1 9.3 3.4 13.0 DAY 28 5 26 17 23 ** 18 10 ** 19 19 2 2002 8.0 15.0 16.0 22.0 22.0 3.0 3.8 0.1 0.0 0.7 13.0 8.8 22.0 DAY 12 5 23 12 4 22 28 12 ** 22 3 13 2003 6.8 14.1 23.5 18.0 13.0 3.3 0.0 5.0 0.1 1.1 15.0 10.2 23.5 DAY 18 5 8 11 9 20 ** 3 11 5 4 7 2004 7.4 3.0 11.0 28.1 8.0 1.0 25.2 0.0 0.0 3.0 12.3 7.2 28.1 DAY 19 7 14 5 5 30 25 ** ** 6 19 26 2005 8.0 13.0 25.4 3.6 21.0 21.0 9.0 7.1 0.0 9.0 24.0 15.0 25.4 DAY 23 22 13 5 31 9 30 10 ** 9 9 26 1977-2005 33.0 39.0 25.4 28.1 37.0 25.0 37.1 41.0 54.3 15.0 28.0 28.0 54.3 YEAR-DAY 89-25 80-12 79-28 4- 5 77-25 0-13 81-20 88-21 0-11 77-23 77-14 89- 5 0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 27 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF DAYS WITH PRECIPITATION EQUAL TO OR GREATER THAN 10 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 1 *** 5 0 0 0 0 1 2 0 *** 1978 0 2 0 2 3 0 0 0 1 0 1 0 9 1979 1 1 2 1 2 0 0 0 1 0 1 1 10 1980 0 3 1 1 0 0 0 0 0 0 1 1 7 1981 0 0 1 3 3 0 2 0 1 0 1 0 11 1982 2 2 0 0 1 1 1 0 0 0 0 0 7 1983 1 0 0 0 0 0 0 0 0 0 0 1 2 1984 0 0 1 2 2 0 0 0 0 1 2 0 8 1985 1 0 0 0 0 0 0 0 0 1 0 1 3 1986 0 0 0 1 1 1 0 1 0 1 0 2 7 1987 0 0 2 0 1 0 1 0 0 1 0 0 5 1988 1 1 1 2 1 0 0 1 0 0 0 0 7 1989 1 0 1 1 0 0 0 0 0 0 0 3 6 1990 0 0 0 0 0 0 0 0 0 0 1 1 2 1991 0 0 4 1 3 2 0 0 0 1 0 2 13 1992 1 0 0 2 2 0 0 0 0 0 0 0 5 1993 0 2 2 2 0 0 0 0 0 0 2 0 8 1994 3 2 1 0 0 0 0 0 0 0 2 0 8 1995 0 0 1 2 0 1 0 0 0 0 1 0 5 1996 1 0 1 1 0 0 0 0 0 0 0 0 3 1997 0 0 2 1 2 0 0 0 0 1 2 0 8 1998 0 0 0 1 2 0 0 1 0 0 0 0 4 1999 0 0 0 0 1 0 1 1 0 0 2 0 5 2000 1 0 1 0 0 1 0 2 2 1 1 0 9 2001 0 1 0 0 1 0 0 0 0 0 0 0 2 2002 0 1 3 5 2 0 0 0 0 0 1 0 12 2003 0 1 3 4 3 0 0 0 0 0 2 1 14 2004 0 0 2 4 0 0 1 0 0 0 2 0 9 2005 0 1 2 0 2 1 0 0 0 0 1 1 8 MEAN 0.5 0.6 1.1 1.3 1.3 0.2 0.2 0.2 0.2 0.3 0.9 0.5 7.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 28 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF DAYS WITH PRECIPITATION EQUAL TO OR GREATER THAN 5 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 2 *** 7 2 0 1 0 2 5 1 *** 1978 2 5 3 4 5 0 0 0 1 0 2 0 22 1979 3 5 2 3 2 1 0 0 3 1 1 5 26 1980 4 4 4 2 0 1 0 0 0 1 2 1 19 1981 1 1 3 3 5 0 4 0 1 2 2 0 22 1982 2 4 4 0 2 1 1 0 1 3 2 0 20 1983 1 2 2 1 1 0 0 0 0 0 1 2 10 1984 2 0 3 4 3 0 0 0 0 2 3 2 19 1985 1 1 1 0 0 0 0 1 0 1 0 2 7 1986 1 1 1 4 1 2 1 1 1 1 1 4 19 1987 0 1 10 1 3 0 2 0 0 3 0 1 21 1988 2 3 4 4 1 0 3 2 0 0 1 2 22 1989 2 1 3 2 0 0 0 0 0 0 0 5 13 1990 0 1 1 1 0 0 0 0 0 1 1 2 7 1991 1 1 6 3 3 2 0 0 0 1 0 4 21 1992 2 1 5 4 3 2 0 0 0 0 0 5 22 1993 1 4 2 4 0 0 0 0 0 0 3 0 14 1994 7 2 3 0 2 0 0 0 0 3 3 1 21 1995 1 2 2 3 0 1 0 0 1 1 1 0 12 1996 1 3 4 2 3 0 0 0 0 1 1 0 15 1997 1 2 2 1 5 0 0 0 0 3 3 1 18 1998 1 1 4 2 4 0 0 1 1 0 0 0 14 1999 2 2 3 3 3 0 3 1 0 1 5 0 23 2000 3 2 2 0 0 1 1 2 2 1 1 1 16 2001 0 2 1 1 1 0 0 1 0 0 2 0 8 2002 2 2 4 5 2 0 0 0 0 0 3 2 20 2003 1 5 3 8 4 0 0 1 0 0 5 2 29 2004 2 0 3 4 1 0 3 0 0 0 4 2 19 2005 5 1 5 0 5 1 1 1 0 3 3 3 28 MEAN 1.8 2.1 3.2 2.5 2.3 0.5 0.7 0.4 0.4 1.1 1.9 1.7 18.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 29 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF DAYS WITH PRECIPITATION EQUAL TO OR GREATER THAN 1 MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 3 *** 11 3 0 1 0 5 10 8 *** 1978 5 9 5 7 9 1 0 0 1 0 6 6 49 1979 10 11 11 3 5 3 0 1 4 4 2 10 64 1980 9 9 10 5 3 1 0 0 3 5 10 6 61 1981 7 8 9 10 10 3 6 1 1 7 3 7 72 1982 9 9 6 1 5 3 1 0 4 5 8 3 54 1983 6 3 4 5 5 0 0 2 1 0 4 6 36 1984 4 6 9 6 4 0 1 0 1 3 9 8 51 1985 6 9 6 6 1 1 0 1 0 3 2 4 39 1986 5 5 7 9 3 5 2 4 1 1 5 8 55 1987 2 7 19 7 4 0 5 2 1 3 2 5 57 1988 9 6 10 9 4 0 5 2 2 1 4 9 61 1989 7 4 6 4 2 1 1 2 0 2 1 10 40 1990 6 4 6 4 1 0 0 0 0 3 2 6 32 1991 8 6 12 3 6 2 0 0 2 1 2 5 47 1992 7 8 13 10 8 7 0 3 0 1 1 8 66 1993 7 9 10 9 5 3 0 0 0 1 7 3 54 1994 8 6 6 2 4 1 0 0 0 6 6 2 41 1995 3 6 4 4 2 1 2 0 5 4 3 3 37 1996 2 6 10 4 5 0 1 0 1 4 2 3 38 1997 5 6 11 6 8 5 1 0 0 6 5 4 57 1998 9 7 7 4 8 1 1 1 2 1 1 3 45 1999 8 5 8 9 4 0 4 1 1 4 10 0 54 2000 7 5 4 0 0 1 1 2 3 6 4 5 38 2001 2 3 5 4 3 0 2 1 0 6 4 5 35 2002 5 9 8 11 5 1 3 0 0 0 5 8 55 2003 5 7 10 11 4 1 0 1 0 2 7 6 54 2004 3 5 4 7 4 1 5 0 0 3 4 8 44 2005 10 3 10 5 10 3 1 2 0 3 7 4 58 MEAN 6.2 6.5 8.0 5.9 4.9 1.7 1.4 0.9 1.1 3.1 4.7 5.6 50.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 30 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 3 *** 15 4 0 2 0 8 10 14 *** 1978 9 10 10 16 13 4 0 0 1 4 11 9 87 1979 11 15 18 13 9 5 0 2 4 5 2 13 97 1980 10 14 16 6 7 2 0 0 3 9 13 7 87 1981 8 11 12 17 15 4 7 1 4 9 3 9 100 1982 12 14 12 4 15 5 1 1 7 13 15 6 105 1983 10 7 8 11 10 2 0 2 2 1 8 9 70 1984 8 17 16 8 8 5 1 0 2 4 13 12 94 1985 12 13 13 9 4 2 1 3 0 4 5 14 80 1986 8 9 13 10 8 6 2 4 2 3 10 12 87 1987 4 12 22 11 10 0 6 2 5 6 4 8 90 1988 12 15 14 13 5 0 6 2 3 2 7 11 90 1989 17 11 11 5 4 3 3 3 2 4 5 18 86 1990 14 14 15 11 2 0 2 0 0 6 5 12 81 1991 14 14 15 4 18 2 2 0 2 4 9 11 95 1992 12 14 19 16 13 12 1 5 1 2 2 13 110 1993 11 14 14 13 12 7 1 3 3 2 17 8 105 1994 14 11 9 12 9 4 0 0 4 10 9 12 94 1995 10 7 8 13 4 5 4 0 8 6 5 5 75 1996 8 10 18 14 9 2 4 2 4 6 4 5 86 1997 13 9 15 8 10 11 1 0 1 6 10 10 94 1998 19 14 11 6 11 1 4 10 5 7 3 9 100 1999 13 6 11 13 8 0 9 1 2 4 20 6 93 2000 12 8 9 4 3 3 2 2 5 8 7 6 69 2001 9 6 10 7 9 0 2 5 0 12 6 9 75 2002 8 13 11 18 11 3 4 2 0 3 6 11 90 2003 9 13 16 16 12 6 2 2 1 4 9 11 101 2004 9 8 8 12 10 3 8 1 0 5 11 14 89 2005 14 13 13 8 15 4 2 3 0 5 12 10 99 MEAN 11.1 11.5 12.8 10.6 9.6 3.6 2.6 2.0 2.4 5.6 8.3 10.1 90.2 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 31 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF DAYS WITH THUNDER STORM YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 0 *** 7 3 0 0 0 0 1 0 *** 1978 0 0 1 5 8 2 0 0 0 0 1 0 17 1979 0 0 1 3 3 2 0 1 1 0 0 0 11 1980 0 0 2 7 6 0 0 1 0 1 1 0 18 1981 0 1 0 2 6 4 3 0 2 1 1 0 20 1982 0 2 1 0 9 3 1 0 4 2 0 0 22 1983 0 0 0 1 2 2 0 2 0 0 0 0 7 1984 0 0 0 1 4 0 1 0 1 0 0 0 7 1985 0 0 1 5 3 1 0 2 0 0 0 0 12 1986 0 0 0 1 4 4 0 2 1 0 0 1 13 1987 0 0 2 2 5 0 3 2 1 0 0 0 15 1988 0 0 1 4 2 0 4 2 1 1 0 0 15 1989 0 0 0 0 1 1 1 1 0 0 2 0 6 1990 0 0 0 1 2 0 1 0 0 0 0 0 4 1991 0 0 0 2 1 2 0 0 0 1 0 0 6 1992 0 0 1 4 6 9 0 0 0 0 0 0 20 1993 0 0 2 5 6 3 1 1 0 0 2 0 20 1994 0 0 1 0 6 2 0 0 0 0 1 0 10 1995 0 2 1 2 3 5 6 0 5 0 2 0 26 1996 0 0 0 2 6 0 2 0 2 0 0 0 12 1997 0 1 2 1 4 11 0 0 0 2 2 0 23 1998 0 0 4 3 7 0 0 6 3 0 0 0 23 1999 0 1 2 3 2 0 5 1 0 0 0 0 14 2000 0 0 0 1 3 0 0 2 5 1 0 0 12 2001 0 0 1 3 7 0 3 3 0 6 0 0 23 2002 1 1 1 7 8 4 3 0 0 2 0 1 28 2003 0 0 3 4 3 3 0 0 0 2 1 0 16 2004 0 2 1 4 4 1 1 1 0 1 5 0 20 2005 0 0 2 4 14 8 2 1 1 2 1 0 35 MEAN 0.0 0.4 1.0 2.7 4.9 2.4 1.3 1.0 0.9 0.8 0.7 0.1 16.2 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 32 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF DAYS WITH SNOW OR SLEET YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 0 *** 0 0 0 0 0 1 1 3 *** 1978 4 8 3 0 1 0 0 0 0 0 3 2 21 1979 8 10 6 0 0 0 0 0 0 0 0 4 28 1980 9 13 6 0 0 0 0 0 0 0 0 5 33 1981 2 8 2 2 0 0 0 0 0 0 1 1 16 1982 10 15 7 0 0 0 0 0 0 0 6 4 42 1983 7 4 5 0 0 0 0 0 0 0 0 2 18 1984 6 16 2 0 1 0 0 0 0 0 1 10 36 1985 6 12 10 0 0 0 0 0 0 0 0 7 35 1986 5 7 12 0 0 0 0 0 0 0 1 8 33 1987 2 7 5 2 0 0 0 0 0 0 2 2 20 1988 11 11 4 0 0 0 0 0 0 0 1 6 33 1989 17 11 4 0 0 0 0 0 0 0 0 5 37 1990 14 14 5 0 0 0 0 0 0 0 0 8 41 1991 10 9 6 0 0 0 0 0 0 0 0 2 27 1992 11 13 10 1 0 0 0 0 0 0 1 7 43 1993 9 7 6 0 0 0 0 0 0 0 8 6 36 1994 11 10 3 2 0 0 0 0 0 0 0 8 34 1995 8 4 2 0 0 0 0 0 0 0 2 3 19 1996 7 8 8 0 0 0 0 0 0 0 3 0 26 1997 6 7 10 2 0 0 0 0 0 0 0 4 29 1998 19 12 6 0 0 0 0 0 0 0 0 0 37 1999 7 2 4 0 0 0 0 0 0 0 3 0 16 2000 11 6 7 0 0 0 0 0 0 0 2 2 28 2001 8 5 3 0 0 0 0 0 0 0 1 1 18 2002 5 11 2 0 0 0 0 0 0 0 0 9 27 2003 7 12 10 2 0 0 0 0 0 0 2 7 40 2004 4 3 5 4 0 0 0 0 0 0 2 13 31 2005 9 13 5 2 0 0 0 0 0 0 0 3 32 MEAN 8.3 9.2 5.4 0.6 0.1 0.0 0.0 0.0 0.0 0.0 1.4 4.6 29.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 33 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF DAYS WITH DUST YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 0 *** 0 0 1 1 1 3 0 0 *** 1978 1 0 0 1 0 0 1 1 1 1 0 0 6 1979 0 0 0 1 1 0 2 0 0 0 1 0 5 1980 0 0 0 4 1 0 0 0 1 1 1 0 8 1981 0 0 0 1 1 0 0 0 1 0 0 0 3 1982 0 0 1 0 1 0 1 0 0 0 0 0 3 1983 0 0 0 1 0 0 0 0 1 0 1 0 3 1984 0 0 0 0 0 0 0 0 0 0 0 0 0 1985 0 0 0 1 0 0 1 1 9 9 1 1 23 1986 0 0 0 2 3 4 10 6 5 1 0 0 31 1987 1 0 0 1 4 2 6 7 8 1 0 3 33 1988 0 0 0 1 2 3 3 4 3 1 0 2 19 1989 0 0 0 2 1 3 3 4 1 1 1 0 16 1990 0 0 3 3 3 6 4 7 2 1 0 1 30 1991 1 0 1 1 5 3 4 7 6 0 1 1 30 1992 0 0 0 0 0 2 3 1 5 2 4 0 17 1993 0 0 0 1 2 5 1 0 3 1 1 0 14 1994 0 1 0 0 1 4 3 3 0 0 0 0 12 1995 0 0 0 1 0 2 1 1 2 0 0 0 7 1996 0 0 0 2 0 2 2 0 0 0 0 0 6 1997 1 0 0 2 0 0 0 1 2 1 0 0 7 1998 0 0 1 2 0 0 0 0 1 1 0 0 5 1999 0 0 0 0 0 0 1 2 1 1 0 0 5 2000 0 0 0 1 1 1 1 2 1 0 0 0 7 2001 1 1 0 2 3 2 0 3 4 3 1 0 20 2002 0 0 2 1 2 6 1 2 2 2 0 0 18 2003 1 0 1 3 0 1 1 1 1 1 0 0 10 2004 0 0 0 0 0 0 0 0 0 0 0 0 0 2005 0 0 0 0 0 0 0 1 0 0 0 0 1 MEAN 0.2 0.1 0.3 1.2 1.1 1.6 1.7 1.9 2.1 1.1 0.4 0.3 12.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 34 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M PREVAILING WIND DIRECTION , SPEED (IN KNOTS) AND PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 270 *** 270 270 270 315 315 270 315 180 *** PREVAIL. DIRECT. ***** ***** 7.7 ***** 6.1 8.7 7.5 8.3 7.8 7.1 5.5 10.3 ***** PREVAIL. SPEED ***** ***** 19.4 ***** 9.0 15.3 13.5 14.8 13.3 10.3 4.0 8.4 ***** PREVAIL. PERCENT ***** ***** 47.1 ***** 61.9 58.0 52.9 57.4 64.0 68.4 82.7 74.8 ***** CALMS PERCENT **** **** 155 **** 155 150 155 155 150 155 150 155 1380 WIND OBSER. NO. 1978 180 270 270 315 270 270 315 270 315 315 270 180 270 PREVAIL. DIRECT. 9.6 6.8 6.0 7.1 7.5 7.8 7.2 8.8 8.3 7.2 7.2 11.1 7.5 PREVAIL. SPEED 9.7 10.0 16.8 15.3 18.1 21.3 20.6 12.9 11.3 11.6 10.0 22.6 11.6 PREVAIL. PERCENT 75.5 67.9 61.3 56.0 54.2 46.7 41.9 59.4 67.3 75.5 74.7 51.6 60.9 CALMS PERCENT 155 140 155 150 155 150 155 155 150 155 150 155 1825 WIND OBSER. NO. 1979 180 270 270 270 270 270 270 360 315 270 180 180 270 PREVAIL. DIRECT. 12.1 9.3 6.9 8.3 8.8 7.7 9.7 8.2 6.5 7.2 12.1 7.8 8.0 PREVAIL. SPEED 9.7 10.7 16.1 22.7 15.5 16.7 12.9 15.1 7.8 9.1 4.4 13.4 10.6 PREVAIL. PERCENT 78.7 72.1 61.3 48.0 60.6 54.7 48.4 50.3 78.3 80.1 83.9 75.3 66.7 CALMS PERCENT 155 140 155 150 155 150 155 159 180 186 180 186 1951 WIND OBSER. NO. 1980 180 270 270 270 315 270 315 270 315 270 270 270 270 PREVAIL. DIRECT. 10.4 7.3 6.2 7.9 7.3 8.5 8.2 7.3 7.4 7.0 8.5 5.5 7.7 PREVAIL. SPEED 9.7 4.6 11.9 16.1 15.6 20.0 17.2 15.6 14.4 14.0 9.4 7.0 12.1 PREVAIL. PERCENT 74.2 86.8 61.6 62.8 51.6 43.3 47.3 59.7 69.4 68.8 76.7 83.9 65.4 CALMS PERCENT 186 174 185 180 186 180 186 186 180 186 180 186 2195 WIND OBSER. NO. 1981 180 270 270 270 270 270 270 270 270 270 270 135 270 PREVAIL. DIRECT. 10.6 6.7 7.5 6.5 7.2 7.9 8.1 6.9 6.4 6.3 6.6 9.9 7.2 PREVAIL. SPEED 20.4 15.5 14.0 15.0 18.8 20.6 24.7 7.3 11.3 6.9 7.5 4.0 12.1 PREVAIL. PERCENT 59.1 68.5 67.7 62.8 64.5 66.1 53.2 78.0 77.5 88.7 79.2 85.9 72.2 CALMS PERCENT 186 168 186 180 186 180 186 191 240 248 240 248 2439 WIND OBSER. NO. 1982 135 270 270 270 270 270 270 270 270 270 270 135 270 PREVAIL. DIRECT. 11.1 6.6 8.1 7.5 8.8 8.9 7.2 8.0 7.0 7.7 6.0 11.5 7.8 PREVAIL. SPEED 6.5 5.8 13.8 12.1 15.3 17.7 12.4 20.4 13.9 9.7 8.3 4.3 11.0 PREVAIL. PERCENT 81.9 87.1 67.6 72.9 70.6 58.4 69.0 61.3 74.4 81.7 82.2 90.9 74.6 CALMS PERCENT 248 224 247 240 248 209 210 186 180 186 180 186 2544 WIND OBSER. NO. 1983 135 135 270 225 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 11.0 9.7 6.5 6.1 6.4 7.1 6.7 7.2 7.4 7.6 6.4 5.6 6.8 PREVAIL. SPEED 15.6 6.5 18.3 10.0 17.7 27.8 17.1 25.8 15.4 10.9 7.2 4.8 14.0 PREVAIL. PERCENT 54.8 78.6 55.4 73.3 70.4 48.9 61.9 57.1 73.8 81.5 75.8 89.2 68.9 CALMS PERCENT 186 168 186 180 186 180 181 182 195 248 223 186 2301 WIND OBSER. NO. 1984 270 270 270 270 270 270 315 270 270 270 225 270 270 PREVAIL. DIRECT. 5.0 6.0 6.1 6.8 7.0 6.3 5.4 6.7 5.3 6.4 5.3 6.3 6.3 PREVAIL. SPEED 5.4 13.2 15.1 13.8 16.8 19.4 14.4 25.5 15.4 9.7 5.2 3.4 12.8 PREVAIL. PERCENT 86.6 78.6 66.7 68.3 63.5 56.3 60.9 53.9 76.0 79.3 84.8 91.1 72.1 CALMS PERCENT 186 182 186 189 208 206 202 204 208 217 210 203 2401 WIND OBSER. NO. 1985 135 270 270 270 270 270 270 315 270 270 270 270 270 PREVAIL. DIRECT. 8.2 6.3 4.6 7.1 7.1 7.0 15.8 12.5 11.0 12.0 8.2 10.0 10.4 PREVAIL. SPEED 6.0 10.2 19.4 10.5 18.1 16.9 53.7 25.1 29.5 30.6 13.8 14.7 20.6 PREVAIL. PERCENT 83.4 55.6 66.4 70.0 68.1 62.6 17.6 28.4 48.3 45.8 74.8 68.2 57.4 CALMS PERCENT 217 196 217 210 210 195 216 215 207 216 210 217 2526 WIND OBSER. NO. 1986 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 10.5 12.4 13.4 13.5 15.1 16.0 17.1 14.2 14.8 12.9 13.3 13.1 14.3 PREVAIL. SPEED 9.7 22.0 34.6 21.0 35.5 30.0 33.2 22.0 24.3 28.5 15.5 17.1 24.7 PREVAIL. PERCENT 77.0 63.9 44.4 48.6 45.6 47.6 34.6 51.7 52.9 54.7 69.6 58.8 53.8 CALMS PERCENT 217 205 234 210 217 210 214 209 210 179 181 187 2473 WIND OBSER. NO. 1987 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 11.1 16.5 14.8 14.5 12.9 16.8 15.9 15.0 14.1 14.0 12.8 12.6 14.4 PREVAIL. SPEED 12.7 22.4 29.7 31.4 28.0 15.5 26.5 31.6 38.0 26.5 18.7 12.0 24.3 PREVAIL. PERCENT 58.3 58.3 54.0 50.0 54.9 48.7 37.4 39.4 46.7 58.7 67.3 62.0 53.0 CALMS PERCENT 204 156 202 210 193 193 155 155 150 155 150 166 2089 WIND OBSER. NO. 1988 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 16.2 13.7 16.5 14.2 13.9 15.0 14.7 14.9 13.4 11.2 14.2 11.7 14.1 PREVAIL. SPEED 14.3 19.2 24.4 30.0 44.1 29.5 46.5 47.9 41.4 31.3 15.7 12.0 29.9 PREVAIL. PERCENT 71.9 64.0 51.2 51.4 42.4 46.2 37.3 34.3 51.4 60.4 67.1 74.2 54.2 CALMS PERCENT 217 203 217 220 238 210 217 213 210 217 210 217 2589 WIND OBSER. NO. 1989 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 12.3 12.8 11.7 13.8 15.3 14.7 14.3 13.4 12.1 10.6 12.6 11.7 13.1 PREVAIL. SPEED 24.6 23.0 34.0 32.8 33.2 42.8 43.9 29.7 43.1 30.6 17.6 14.3 30.4 PREVAIL. PERCENT 67.7 69.4 50.2 43.9 45.6 36.8 23.9 44.2 47.9 60.0 66.7 74.7 53.3 CALMS PERCENT 195 196 209 198 217 201 155 172 188 170 210 217 2328 WIND OBSER. NO. 1990 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 11.3 11.5 14.5 14.1 16.0 15.9 15.4 16.1 15.6 13.3 11.1 15.5 14.7 PREVAIL. SPEED 18.0 28.6 36.9 41.4 46.1 52.9 50.2 53.5 34.8 33.6 12.9 9.2 34.9 PREVAIL. PERCENT 69.6 55.6 47.9 47.6 35.5 34.3 25.8 28.6 51.0 62.2 83.3 83.9 52.1 CALMS PERCENT 217 196 217 210 217 210 217 217 210 217 210 217 2555 WIND OBSER. NO. 1991 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 13.1 12.6 15.1 14.3 15.0 15.7 14.8 13.9 14.3 10.6 10.4 13.0 13.9 PREVAIL. SPEED 13.0 25.0 35.9 37.8 46.5 38.9 31.8 39.3 45.8 20.6 24.6 13.7 30.9 PREVAIL. PERCENT 81.9 61.2 49.3 48.3 45.6 47.3 50.2 41.5 48.3 75.0 72.1 73.4 58.2 CALMS PERCENT 216 196 217 209 217 203 217 229 240 248 240 248 2680 WIND OBSER. NO. 1992 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 10.6 13.5 12.7 15.5 13.9 14.1 14.9 14.4 13.9 12.3 12.8 11.7 13.7 PREVAIL. SPEED 21.0 18.1 32.7 29.2 31.5 38.3 51.2 53.2 30.8 21.0 15.0 12.9 29.6 PREVAIL. PERCENT 58.5 65.5 58.1 58.8 54.4 47.5 29.8 33.5 51.7 69.8 70.0 72.6 55.8 CALMS PERCENT 248 232 248 240 248 240 248 248 240 248 240 248 2928 WIND OBSER. NO. 1993 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 13.4 12.4 15.0 15.8 14.2 14.9 15.4 13.6 13.9 14.1 11.7 10.3 14.0 PREVAIL. SPEED 14.2 24.6 28.2 27.9 34.3 42.1 52.4 39.9 43.3 31.5 32.9 12.9 32.0 PREVAIL. PERCENT 72.8 61.6 51.6 58.3 54.0 41.3 26.2 39.9 47.1 62.1 61.3 81.5 54.8 CALMS PERCENT 246 224 248 240 248 240 248 248 240 248 240 248 2918 WIND OBSER. NO. 1994 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 11.3 12.7 13.1 12.6 13.4 17.2 15.8 14.1 12.0 12.5 12.2 12.1 13.9 PREVAIL. SPEED 16.1 39.7 26.6 34.2 29.8 57.9 62.5 56.9 39.2 22.2 17.1 15.7 34.8 PREVAIL. PERCENT 70.6 49.6 64.9 50.8 52.0 32.5 26.6 29.8 50.0 69.0 68.8 71.8 53.1 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1995 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 11.7 12.6 13.3 13.7 12.5 16.0 15.5 16.1 12.8 13.9 16.0 10.0 14.2 PREVAIL. SPEED 13.7 27.2 23.8 30.8 27.8 40.8 59.3 41.9 26.7 31.9 13.3 10.9 29.0 PREVAIL. PERCENT 77.4 66.1 64.5 57.9 52.4 42.1 31.0 43.1 56.7 64.1 79.6 79.8 59.5 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1996 270 270 270 270 270 270 270 270 270 270 270 135 270 PREVAIL. DIRECT. 9.7 12.0 12.8 14.8 11.6 15.4 14.3 13.2 12.3 13.0 13.5 16.2 13.3 PREVAIL. SPEED 13.7 25.4 26.6 31.3 23.4 51.7 41.1 29.4 35.0 30.6 18.3 7.3 27.7 PREVAIL. PERCENT 74.6 65.5 54.8 57.5 61.7 40.4 36.7 52.0 57.9 64.5 75.8 76.6 59.8 CALMS PERCENT 248 232 248 240 248 240 248 248 240 248 240 248 2928 WIND OBSER. NO. 1997 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 11.0 10.2 13.1 13.5 12.3 10.6 12.7 13.1 12.4 11.5 9.9 9.8 11.9 PREVAIL. SPEED 19.0 26.3 30.6 24.6 25.4 34.2 43.1 25.8 45.0 22.2 15.8 13.3 27.1 PREVAIL. PERCENT 68.1 64.7 53.6 56.7 61.7 47.1 35.1 54.0 45.4 74.2 77.9 79.8 59.9 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1998 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 12.3 14.2 12.1 11.6 12.0 12.6 13.0 11.3 11.8 11.3 10.0 10.0 11.9 PREVAIL. SPEED 19.4 22.3 28.2 36.3 29.8 25.8 48.8 40.3 33.3 28.6 18.8 15.3 29.0 PREVAIL. PERCENT 76.2 67.4 58.1 55.8 57.3 54.6 33.5 42.7 58.8 69.8 76.3 78.6 60.7 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1999 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 10.5 12.9 12.2 12.6 14.0 13.2 13.2 10.2 12.5 10.4 9.0 11.1 12.2 PREVAIL. SPEED 19.4 17.0 26.2 29.6 36.7 47.5 41.5 23.4 28.8 19.4 20.0 6.0 26.3 PREVAIL. PERCENT 71.4 64.3 61.7 60.4 52.8 34.2 32.7 47.2 58.3 74.2 65.8 81.5 58.7 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 2000 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 12.7 12.2 12.7 12.3 15.8 15.3 13.1 12.7 12.9 10.8 11.8 9.4 13.1 PREVAIL. SPEED 15.3 16.8 25.8 26.7 44.0 37.1 24.6 25.0 35.0 28.6 20.0 13.3 26.0 PREVAIL. PERCENT 62.9 71.6 60.1 62.1 46.0 43.8 50.4 62.1 59.6 67.3 77.1 75.8 61.5 CALMS PERCENT 248 232 248 240 248 240 248 248 240 248 240 248 2928 WIND OBSER. NO. 2001 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 10.5 11.4 16.1 15.1 13.8 15.1 12.8 13.0 11.9 11.6 10.5 11.0 13.2 PREVAIL. SPEED 24.6 17.0 27.4 36.7 42.7 52.5 43.5 42.7 32.1 32.3 16.7 8.5 31.5 PREVAIL. PERCENT 69.8 70.1 60.1 54.6 40.7 30.0 33.1 47.2 58.3 61.7 75.4 79.0 56.6 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 2002 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 10.6 13.9 13.4 13.5 12.8 13.7 12.2 12.4 10.0 10.6 9.0 12.2 12.3 PREVAIL. SPEED 15.7 24.6 25.8 34.6 46.4 48.3 28.6 39.5 28.8 21.4 18.3 17.7 29.1 PREVAIL. PERCENT 72.2 66.1 60.5 51.7 48.0 40.0 51.6 47.2 62.5 70.2 79.6 69.0 59.8 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 2003 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 13.5 11.8 13.1 14.1 13.5 12.6 11.3 10.5 12.1 11.0 11.2 10.6 12.2 PREVAIL. SPEED 12.1 25.9 32.3 34.2 33.5 47.9 55.6 35.1 32.9 21.8 20.4 11.3 30.2 PREVAIL. PERCENT 80.6 55.4 58.5 52.1 60.5 45.8 29.8 41.9 56.3 66.5 70.4 76.6 57.9 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 2004 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 12.1 11.7 11.1 10.1 10.8 12.0 11.2 9.2 10.7 9.7 10.4 11.0 10.8 PREVAIL. SPEED 13.3 20.3 25.8 30.4 31.5 34.2 39.5 22.6 27.5 16.5 13.8 14.1 24.1 PREVAIL. PERCENT 73.8 63.4 66.1 56.7 55.2 45.8 40.7 56.5 59.2 76.2 73.3 80.2 62.3 CALMS PERCENT 248 232 248 240 248 240 248 248 240 248 240 248 2928 WIND OBSER. NO. 2005 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 8.6 8.5 10.4 10.4 10.7 11.4 11.3 9.4 11.3 10.9 9.7 9.3 10.3 PREVAIL. SPEED 12.5 21.4 22.6 23.8 21.4 36.3 27.0 26.6 29.2 30.6 16.3 21.4 24.1 PREVAIL. PERCENT 76.6 67.9 64.5 67.1 57.7 50.0 46.0 52.8 60.4 60.1 75.8 66.1 62.0 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1977-2005 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAIL. DIRECT. 11.1 11.7 12.3 12.8 12.8 13.5 13.5 12.5 12.1 11.4 10.9 10.7 12.4 PREVAIL. SPEED 13.5 19.9 25.5 26.9 29.7 35.1 36.8 31.6 28.9 22.4 15.2 11.0 24.7 PREVAIL. PERCENT MEAN 72.4 66.4 58.3 57.3 54.5 46.0 39.6 47.6 58.5 68.8 74.6 76.4 60.0 CALMS PERCENT MEAN 223.4 204.0 222.1 217.7 222.8 213.3 217.0 217.2 215.8 222.6 216.7 222.3 2614.9 WIND OBSER. NO. =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 35 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M VECTOR WIND DIRECTION , MAGNITUDE (IN KNOTS) AND WIND STEADINESES (%) YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 266 *** 304 298 298 304 297 265 260 201 *** VECTOR DIRECT. **** **** 1.5 **** 1.1 1.8 1.4 2.4 1.7 1.4 0.2 1.1 **** WIND MAGNITUDE ***** ***** 38.5 ***** 40.7 52.9 41.2 68.6 63.0 58.3 20.0 52.4 ***** STEADINESES(%) 1978 194 283 274 273 288 299 323 311 332 273 268 188 278 VECTOR DIRECT. 1.4 0.8 1.5 2.0 1.6 2.3 2.6 1.7 1.1 1.4 0.9 2.9 1.2 WIND MAGNITUDE 66.7 40.0 57.7 60.6 51.6 54.8 60.5 54.8 40.7 70.0 50.0 69.0 41.4 STEADINESES(%) 1979 175 267 278 269 303 293 328 338 302 282 203 191 283 VECTOR DIRECT. 1.3 1.3 1.7 2.8 1.9 1.7 1.5 2.5 0.8 1.0 0.8 1.2 1.1 WIND MAGNITUDE 68.4 59.1 63.0 63.6 63.3 50.0 34.9 65.8 57.1 71.4 57.1 70.6 42.3 STEADINESES(%) 1980 214 291 298 257 282 301 325 300 292 280 230 265 284 VECTOR DIRECT. 1.2 0.3 0.7 1.4 2.2 2.4 2.1 2.1 1.9 1.5 1.2 0.5 1.3 WIND MAGNITUDE 60.0 37.5 26.9 48.3 59.5 54.5 48.8 75.0 82.6 75.0 63.2 55.6 52.0 STEADINESES(%) 1981 184 243 235 235 246 263 275 284 261 263 206 186 244 VECTOR DIRECT. 2.3 1.4 1.2 1.0 1.7 2.2 2.5 0.9 1.0 0.7 0.6 0.4 1.1 WIND MAGNITUDE 65.7 58.3 50.0 35.7 60.7 88.0 75.8 64.3 71.4 100.0 40.0 36.4 50.0 STEADINESES(%) 1982 166 247 246 249 271 271 285 280 261 252 235 153 257 VECTOR DIRECT. 1.0 0.5 1.2 0.8 1.7 1.8 1.4 1.7 1.6 0.9 0.6 0.7 1.0 WIND MAGNITUDE 58.8 62.5 50.0 36.4 73.9 52.9 60.9 58.6 88.9 64.3 50.0 77.8 52.6 STEADINESES(%) 1983 152 181 218 259 265 268 284 268 267 263 197 211 246 VECTOR DIRECT. 1.9 0.6 1.4 1.0 1.2 2.5 1.6 2.0 1.3 1.0 0.8 0.3 1.0 WIND MAGNITUDE 48.7 40.0 42.4 66.7 63.2 73.5 64.0 66.7 72.2 71.4 47.1 42.9 45.5 STEADINESES(%) 1984 202 255 256 244 272 268 306 265 263 248 210 225 262 VECTOR DIRECT. 0.4 0.7 0.9 1.5 1.1 1.8 1.7 1.4 1.2 0.8 0.6 0.2 0.9 WIND MAGNITUDE 44.4 53.8 42.9 71.4 47.8 62.1 68.0 45.2 92.3 66.7 66.7 33.3 50.0 STEADINESES(%) 1985 155 193 247 254 265 255 288 311 290 285 292 255 281 VECTOR DIRECT. 0.7 1.4 1.0 0.7 1.5 1.6 10.6 5.1 3.9 4.9 1.8 2.1 2.6 WIND MAGNITUDE 58.3 45.2 58.8 36.8 71.4 64.0 88.3 68.0 79.6 81.7 85.7 58.3 65.0 STEADINESES(%) 1986 260 268 293 315 277 290 302 303 296 290 268 258 288 VECTOR DIRECT. 1.4 2.5 4.9 1.3 5.8 5.5 6.3 4.0 4.4 4.3 2.3 1.8 3.6 WIND MAGNITUDE 60.9 56.8 71.0 23.2 80.6 80.9 67.0 67.8 74.6 86.0 63.9 36.0 63.2 STEADINESES(%) 1987 217 272 281 280 289 331 301 298 287 288 270 203 284 VECTOR DIRECT. 1.6 3.3 4.7 5.6 4.0 2.5 6.0 5.3 5.8 4.6 3.0 2.6 3.7 WIND MAGNITUDE 32.7 57.9 72.3 80.0 76.9 39.1 75.9 67.9 86.6 85.2 76.9 50.0 60.7 STEADINESES(%) 1988 263 266 271 291 284 296 286 287 280 278 260 203 280 VECTOR DIRECT. 2.3 2.6 4.4 4.1 5.8 4.5 7.0 8.3 5.8 3.9 2.0 1.5 4.2 WIND MAGNITUDE 59.0 59.1 62.9 66.1 78.4 68.2 84.3 91.2 92.1 90.7 45.5 41.7 70.0 STEADINESES(%) 1989 270 274 278 288 282 283 299 291 278 274 248 251 281 VECTOR DIRECT. 2.7 2.8 4.3 5.2 5.4 6.4 6.1 4.0 5.4 3.1 2.2 1.8 4.0 WIND MAGNITUDE 65.9 73.7 79.6 80.0 81.8 80.0 64.2 64.5 91.5 79.5 56.4 58.1 71.4 STEADINESES(%) 1990 268 255 274 278 281 279 287 283 279 274 273 267 278 VECTOR DIRECT. 1.8 2.9 5.4 6.3 6.7 8.1 7.9 8.0 5.2 4.6 1.5 1.5 4.9 WIND MAGNITUDE 52.9 55.8 76.1 90.0 72.8 84.4 77.5 76.9 75.4 93.9 83.3 75.0 75.4 STEADINESES(%) 1991 273 270 278 278 277 284 289 283 277 277 275 239 278 VECTOR DIRECT. 1.7 2.4 4.7 6.2 6.9 6.4 4.6 5.8 6.5 2.2 2.7 1.7 4.3 WIND MAGNITUDE 81.0 53.3 66.2 88.6 88.5 86.5 70.8 80.6 92.9 84.6 93.1 47.2 78.2 STEADINESES(%) 1992 232 238 277 279 283 282 283 283 282 277 232 249 275 VECTOR DIRECT. 2.5 2.3 4.0 5.0 4.2 5.1 7.6 7.9 4.3 2.6 1.7 1.3 3.9 WIND MAGNITUDE 49.0 48.9 80.0 83.3 72.4 77.3 81.7 89.8 70.5 78.8 42.5 44.8 68.4 STEADINESES(%) 1993 252 263 258 273 281 279 287 286 277 273 273 287 276 VECTOR DIRECT. 1.9 3.2 3.5 4.4 4.7 5.5 8.4 5.8 5.6 4.5 3.8 1.3 4.3 WIND MAGNITUDE 51.4 66.7 47.9 77.2 78.3 67.1 81.6 76.3 82.4 88.2 86.4 72.2 71.7 STEADINESES(%) 1994 279 272 279 284 281 279 279 283 280 282 255 240 278 VECTOR DIRECT. 1.8 4.9 3.3 3.9 4.2 9.9 9.7 7.6 4.7 3.1 1.8 1.7 4.7 WIND MAGNITUDE 58.1 76.6 75.0 68.4 73.7 91.7 89.0 84.4 83.9 86.1 48.6 48.6 78.3 STEADINESES(%) 1995 247 272 278 273 291 284 280 283 290 278 256 232 278 VECTOR DIRECT. 1.4 3.3 3.3 4.0 3.7 6.3 9.1 6.6 3.4 4.4 2.4 1.1 4.0 WIND MAGNITUDE 50.0 80.5 75.0 75.5 68.5 76.8 89.2 81.5 70.8 89.8 77.4 50.0 75.5 STEADINESES(%) 1996 266 271 277 274 285 277 295 294 278 275 271 183 277 VECTOR DIRECT. 1.2 2.7 2.9 4.6 2.1 8.0 6.2 3.9 4.5 3.9 2.6 2.1 3.5 WIND MAGNITUDE 48.0 65.9 52.7 76.7 50.0 90.9 72.9 68.4 91.8 86.7 78.8 60.0 68.6 STEADINESES(%) 1997 257 288 267 274 282 293 288 292 279 272 259 267 279 VECTOR DIRECT. 2.1 2.4 4.1 3.3 3.8 4.6 6.4 3.0 5.7 2.6 1.8 1.2 3.4 WIND MAGNITUDE 60.0 68.6 74.5 66.0 88.4 78.0 81.0 56.6 87.7 92.9 75.0 60.0 75.6 STEADINESES(%) 1998 275 273 266 273 280 295 283 285 277 277 273 277 279 VECTOR DIRECT. 2.4 3.2 3.2 4.2 3.3 3.1 6.4 4.7 4.2 3.4 2.0 1.5 3.4 WIND MAGNITUDE 88.9 76.2 62.7 85.7 68.7 63.3 80.0 75.8 91.3 100.0 87.0 71.4 77.3 STEADINESES(%) 1999 270 224 268 283 280 282 287 308 285 282 274 261 279 VECTOR DIRECT. 1.7 2.8 3.1 3.1 5.0 6.5 6.7 3.5 4.7 2.6 2.5 0.6 3.4 WIND MAGNITUDE 56.7 56.0 67.4 66.0 83.3 80.2 83.7 61.4 94.0 96.3 75.8 33.3 70.8 STEADINESES(%) 2000 231 281 275 273 277 284 311 292 279 280 279 241 279 VECTOR DIRECT. 2.3 2.3 3.2 3.6 6.8 5.7 3.4 3.1 4.6 3.2 2.4 0.9 3.3 WIND MAGNITUDE 50.0 76.7 68.1 78.3 86.1 74.0 57.6 70.5 92.0 91.4 92.3 36.0 70.2 STEADINESES(%) 2001 278 239 269 275 268 280 292 279 283 278 251 195 275 VECTOR DIRECT. 2.8 2.2 4.4 5.7 5.9 8.1 5.7 5.9 4.0 3.8 1.7 0.9 4.1 WIND MAGNITUDE 90.3 56.4 78.6 89.1 75.6 84.4 70.4 92.2 85.1 88.4 63.0 34.6 75.9 STEADINESES(%) 2002 230 264 265 266 277 277 293 282 279 276 274 237 272 VECTOR DIRECT. 1.6 3.1 3.1 4.6 5.9 6.7 3.6 4.6 2.8 2.4 1.6 1.9 3.4 WIND MAGNITUDE 45.7 68.9 60.8 71.9 92.2 87.0 67.9 76.7 80.0 82.8 88.9 48.7 70.8 STEADINESES(%) 2003 251 259 272 273 277 275 282 292 283 259 268 252 274 VECTOR DIRECT. 1.5 2.4 4.0 4.5 4.7 6.1 6.0 3.9 4.3 2.7 2.3 1.0 3.6 WIND MAGNITUDE 57.7 44.4 76.9 71.4 92.2 92.4 77.9 68.4 87.8 71.1 74.2 40.0 73.5 STEADINESES(%) 2004 231 246 272 270 282 286 288 296 285 278 249 278 277 VECTOR DIRECT. 1.4 2.0 2.6 2.9 3.4 4.1 5.7 2.3 3.8 2.1 1.5 1.7 2.7 WIND MAGNITUDE 43.7 46.5 72.2 67.4 73.9 70.7 90.5 60.5 90.5 91.3 51.7 85.0 69.2 STEADINESES(%) 2005 255 273 264 281 295 283 299 294 283 272 274 246 281 VECTOR DIRECT. 0.8 1.8 2.5 2.5 2.1 4.7 4.0 3.8 3.5 3.3 1.7 1.8 2.6 WIND MAGNITUDE 38.1 66.7 71.4 75.8 50.0 87.0 69.0 84.4 85.4 78.6 77.3 54.5 68.4 STEADINESES(%) 1977-2005 242 262 272 276 280 283 290 290 282 277 262 234 277 VECTOR DIRECT. 1.4 2.1 2.9 3.4 3.7 4.6 5.2 4.1 3.7 2.8 1.7 1.1 3.0 WIND MAGNITUDE 46.7 56.8 63.0 70.8 74.0 74.2 74.3 71.9 82.2 84.8 65.4 42.3 68.2 STEADINESES(%) =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 36 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF WIND SPEED IN KNOTS YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** 3.9 ***** 2.7 3.4 3.4 3.5 2.7 2.4 1.0 2.1 ****** 1978 2.1 2.0 2.6 3.3 3.1 4.2 4.3 3.1 2.7 2.0 1.8 4.2 2.9 1979 1.9 2.2 2.7 4.4 3.0 3.4 4.3 3.8 1.4 1.4 1.4 1.7 2.6 1980 2.0 0.8 2.6 2.9 3.7 4.4 4.3 2.8 2.3 2.0 1.9 0.9 2.5 1981 3.5 2.4 2.4 2.8 2.8 2.5 3.3 1.4 1.4 0.7 1.5 1.1 2.2 1982 1.7 0.8 2.4 2.2 2.3 3.4 2.3 2.9 1.8 1.4 1.2 0.9 1.9 1983 3.9 1.5 3.3 1.5 1.9 3.4 2.5 3.0 1.8 1.4 1.7 0.7 2.2 1984 0.9 1.3 2.1 2.1 2.3 2.9 2.5 3.1 1.3 1.2 0.9 0.6 1.8 1985 1.2 3.1 1.7 1.9 2.1 2.5 12.0 7.5 4.9 6.0 2.1 3.6 4.0 1986 2.3 4.4 6.9 5.6 7.2 6.8 9.4 5.9 5.9 5.0 3.6 5.0 5.7 1987 4.9 5.7 6.5 7.0 5.2 6.4 7.9 7.8 6.7 5.4 3.9 5.2 6.1 1988 3.9 4.4 7.0 6.2 7.4 6.6 8.3 9.1 6.3 4.3 4.4 3.6 6.0 1989 4.1 3.8 5.4 6.5 6.6 8.0 9.5 6.2 5.9 3.9 3.9 3.1 5.6 1990 3.4 5.2 7.1 7.0 9.2 9.6 10.2 10.4 6.9 4.9 1.8 2.0 6.5 1991 2.1 4.5 7.1 7.0 7.8 7.4 6.5 7.2 7.0 2.6 2.9 3.6 5.5 1992 5.1 4.7 5.0 6.0 5.8 6.6 9.3 8.8 6.1 3.3 4.0 2.9 5.7 1993 3.7 4.8 7.3 5.7 6.0 8.2 10.3 7.6 6.8 5.1 4.4 1.8 6.0 1994 3.1 6.4 4.4 5.7 5.7 10.8 10.9 9.0 5.6 3.6 3.7 3.5 6.0 1995 2.8 4.1 4.4 5.3 5.4 8.2 10.2 8.1 4.8 4.9 3.1 2.2 5.3 1996 2.5 4.1 5.5 6.0 4.2 8.8 8.5 5.7 4.9 4.5 3.3 3.5 5.1 1997 3.5 3.5 5.5 5.0 4.3 5.9 7.9 5.3 6.5 2.8 2.4 2.0 4.5 1998 2.7 4.2 5.1 4.9 4.8 4.9 8.0 6.2 4.6 3.4 2.3 2.1 4.4 1999 3.0 5.0 4.6 4.7 6.0 8.1 8.0 5.7 5.0 2.7 3.3 1.8 4.8 2000 4.6 3.0 4.7 4.6 7.9 7.7 5.9 4.4 5.0 3.5 2.6 2.5 4.7 2001 3.1 3.9 5.6 6.4 7.8 9.6 8.1 6.4 4.7 4.3 2.7 2.6 5.4 2002 3.5 4.5 5.1 6.4 6.4 7.7 5.3 6.0 3.5 2.9 1.8 3.9 4.8 2003 2.6 5.4 5.2 6.3 5.1 6.6 7.7 5.7 4.9 3.8 3.1 2.5 4.9 2004 3.2 4.3 3.6 4.3 4.6 5.8 6.3 3.8 4.2 2.3 2.9 2.0 3.9 2005 2.1 2.7 3.5 3.3 4.2 5.4 5.8 4.5 4.1 4.2 2.2 3.3 3.8 MEAN 3.0 3.7 4.6 4.8 5.0 6.2 7.0 5.7 4.5 3.3 2.6 2.6 4.4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 37 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M FASTEST WIND DIRECTION AND SPEED IN KNOTS YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 210 *** 220 300 90 270 310 240 270 190 *** DIRECTION ** ** 20 ** 30 15 15 25 15 20 12 20 ** SPEED ** ** 7 ** 25 1 1 19 21 5 11 4 DAY 1978 180 290 200 190 270 300 270 270 270 210 170 180 210 DIRECTION 15 15 20 20 15 15 15 15 15 25 20 20 25 SPEED 1 12 12 6 7 2 19 9 25 31 7 16 DAY 1979 200 280 270 210 270 270 270 270 330 270 180 180 280 DIRECTION 20 30 15 20 15 15 22 15 12 15 30 15 30 SPEED 2 18 23 13 24 7 31 2 18 27 29 23 DAY 1980 180 280 330 220 270 240 310 270 270 290 270 300 270 DIRECTION 18 15 10 18 17 15 15 15 15 12 30 10 30 SPEED 28 18 6 16 16 9 16 3 21 4 10 1 DAY 1981 180 180 270 180 150 260 270 270 280 300 140 330 150 DIRECTION 15 20 18 20 25 15 15 12 12 10 20 15 25 SPEED 11 9 3 8 1 13 2 17 15 6 13 10 DAY 1982 150 150 270 160 270 60 60 260 270 270 150 150 270 DIRECTION 19 14 23 23 39 23 19 16 16 16 16 16 39 SPEED 8 4 3 1 19 14 30 4 16 20 8 4 DAY 1983 120 140 120 250 240 60 330 270 270 270 260 180 240 DIRECTION 21 19 16 14 23 16 14 19 14 23 23 16 23 SPEED 17 21 1 28 6 12 11 17 10 12 22 30 DAY 1984 140 140 270 180 150 240 250 270 320 260 270 150 270 DIRECTION 14 16 16 29 29 16 16 35 12 16 19 12 35 SPEED 1 8 2 17 25 22 27 11 5 8 13 14 DAY 1985 150 260 200 270 250 280 290 280 280 280 300 190 190 DIRECTION 19 39 14 14 16 17 47 29 29 49 19 78 78 SPEED 2 6 20 13 17 28 28 24 20 1 10 19 DAY 1986 290 180 280 250 270 280 220 290 280 290 290 290 270 DIRECTION 39 29 35 39 49 39 43 39 35 35 49 39 49 SPEED 20 6 1 20 16 20 17 5 7 7 11 3 DAY 1987 290 150 280 210 270 290 270 290 280 280 290 180 150 DIRECTION 39 58 47 58 39 31 39 31 39 39 29 45 58 SPEED 27 8 20 26 16 5 3 21 18 4 7 23 DAY 1988 280 140 290 290 280 290 270 280 280 280 280 160 280 DIRECTION 39 39 39 39 39 33 43 39 39 33 64 49 64 SPEED 19 1 1 13 13 25 26 19 5 31 14 26 DAY 1989 270 270 280 280 270 290 280 280 270 280 270 150 270 DIRECTION 39 29 31 39 29 31 31 31 39 25 43 29 43 SPEED 6 19 11 29 8 5 8 10 19 9 20 10 DAY 1990 270 280 280 280 280 280 280 280 280 280 270 270 280 DIRECTION 39 29 41 39 58 39 35 39 39 37 43 31 58 SPEED 24 20 16 2 3 22 6 25 21 26 1 26 DAY 1991 270 150 280 270 270 270 270 270 280 270 280 270 270 DIRECTION 62 33 35 29 54 39 39 29 37 25 27 39 62 SPEED 5 16 7 12 23 5 11 18 24 9 7 2 DAY 1992 150 160 270 280 280 280 290 280 280 270 180 270 180 DIRECTION 49 29 39 39 31 45 41 37 31 33 58 35 58 SPEED 30 6 24 23 13 12 11 27 18 14 25 28 DAY 1993 270 270 280 280 290 280 280 270 270 270 150 290 280 DIRECTION 39 68 78 49 39 54 43 39 29 35 39 23 78 SPEED 19 16 23 5 4 21 12 22 8 29 9 19 DAY 1994 280 280 280 280 300 280 280 280 280 270 280 270 280 DIRECTION 31 39 35 49 39 52 39 35 27 39 49 49 52 SPEED 20 1 12 11 13 5 8 4 14 31 26 20 DAY 1995 150 270 190 280 210 270 270 280 280 270 280 280 270 DIRECTION 45 49 43 39 41 35 29 33 29 49 49 25 49 SPEED 17 5 25 12 2 23 3 13 19 13 11 10 DAY 1996 180 180 270 180 290 90 270 270 280 270 240 180 270 DIRECTION 27 43 43 29 31 39 29 29 29 54 35 35 54 SPEED 6 1 26 13 25 29 25 13 9 14 8 24 DAY 1997 150 280 280 270 270 300 280 270 270 280 270 30 270 DIRECTION 25 39 47 68 27 29 29 29 31 54 29 39 68 SPEED 6 6 8 10 10 16 31 21 14 7 5 23 DAY 1998 270 270 190 290 270 280 270 290 280 280 290 270 270 DIRECTION 33 49 33 29 33 33 29 29 29 31 29 33 49 SPEED 13 27 29 6 15 24 7 5 4 2 11 1 DAY 1999 280 180 270 270 270 270 270 70 270 270 280 270 180 DIRECTION 31 87 52 39 49 45 39 27 33 35 27 27 87 SPEED 1 20 18 20 20 2 23 6 16 13 1 23 DAY 2000 190 270 270 270 260 270 280 270 270 290 280 180 270 DIRECTION 35 23 51 33 49 35 31 43 47 29 21 29 51 SPEED 19 7 9 16 20 12 8 7 2 14 6 20 DAY 2001 280 280 270 282 270 270 270 270 270 270 270 180 280 DIRECTION 25 78 51 52 35 31 29 31 29 51 31 39 78 SPEED 28 21 3 14 6 9 3 27 1 1 7 20 DAY 2002 160 270 270 210 270 270 280 270 270 270 270 270 270 DIRECTION 45 33 58 54 58 29 33 31 27 31 16 49 58 SPEED 7 27 5 25 11 3 19 19 18 22 3 22 DAY 2003 170 170 280 280 290 270 270 260 280 280 270 150 280 DIRECTION 29 39 49 31 29 39 25 23 27 29 29 29 49 SPEED 3 18 8 28 25 6 29 3 7 5 4 19 DAY 2004 270 280 170 270 280 270 150 270 280 270 270 280 280 DIRECTION 33 39 29 29 49 29 35 17 23 27 33 25 49 SPEED 27 23 6 1 13 30 26 4 13 23 28 26 DAY 2005 260 260 150 270 350 270 270 80 290 180 280 270 350 DIRECTION 27 25 29 29 35 29 33 23 27 27 33 27 35 SPEED 3 1 10 2 4 22 30 9 6 20 9 26 DAY 1977-2005 270 180 280 270 280 280 290 270 270 270 280 190 180 DIRECTION 62 87 78 68 58 54 47 43 47 54 64 78 87 SPEED 91- 5 99-20 93-23 97-10 90- 3 93-21 85-28 0- 7 0- 2 96-14 88-14 85-19 99 YEAR-DAY =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 38 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF CLEAR DAYS (0-2)/8 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 7 *** 6 20 23 22 23 10 9 5 *** 1978 10 10 11 2 7 17 27 27 25 13 7 8 164 1979 10 1 8 3 10 21 27 26 26 15 19 9 175 1980 9 7 6 7 8 23 30 25 26 9 9 12 171 1981 15 7 5 7 9 17 18 28 28 18 15 9 176 1982 6 7 4 9 10 21 23 20 24 11 7 17 159 1983 11 14 16 8 5 17 27 21 20 25 11 14 189 1984 15 5 2 10 7 21 26 22 24 22 8 14 176 1985 8 11 6 8 17 19 21 25 28 19 12 4 178 1986 15 6 5 8 11 18 23 24 25 14 6 13 168 1987 13 8 2 12 8 26 19 25 22 14 13 11 173 1988 9 7 6 5 14 23 19 20 24 20 13 10 170 1989 10 15 8 16 15 21 23 24 23 21 16 11 203 1990 7 8 13 7 17 23 24 21 29 20 20 9 198 1991 8 7 3 12 9 18 26 25 24 21 15 12 180 1992 12 12 7 3 5 18 25 21 25 25 15 3 171 1993 13 8 10 4 6 19 27 26 23 22 7 11 176 1994 12 7 7 9 15 19 27 28 25 14 15 12 190 1995 15 15 17 5 18 16 25 28 21 23 24 15 222 1996 9 9 3 7 10 20 25 24 26 16 20 17 186 1997 15 13 8 13 18 17 22 30 27 19 14 13 209 1998 3 7 8 10 10 24 21 18 20 18 18 9 166 1999 13 13 13 10 21 23 18 28 26 25 11 16 217 2000 14 14 12 13 24 24 29 28 21 17 11 13 220 2001 11 15 14 12 15 20 24 25 26 20 7 7 196 2002 10 8 12 5 15 20 23 27 29 21 11 13 194 2003 15 7 7 2 16 20 20 28 27 19 12 10 183 2004 11 12 8 10 13 25 19 29 25 24 12 10 198 2005 11 11 7 13 6 19 26 21 27 22 16 13 192 MEAN 11.1 9.4 8.1 8.2 11.9 20.3 23.7 24.7 24.8 18.5 12.9 11.0 184.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 39 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF PARTLY CLOUDY DAYS (3-6)/8 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 14 *** 12 10 7 7 7 12 12 12 *** 1978 11 7 10 16 13 10 4 4 5 15 11 12 118 1979 9 11 11 10 12 6 4 5 2 11 8 10 99 1980 12 11 12 13 16 4 1 6 3 17 12 10 117 1981 10 7 13 9 14 10 11 3 1 8 11 13 110 1982 13 9 14 17 12 7 4 9 6 10 11 7 119 1983 11 11 7 11 20 13 3 7 7 5 18 9 122 1984 10 11 8 11 12 8 5 9 6 6 13 10 109 1985 9 8 12 13 13 11 10 5 2 9 11 15 118 1986 9 12 13 7 17 11 7 5 5 12 15 10 123 1987 10 9 8 8 14 3 9 6 6 8 10 10 101 1988 10 9 14 11 13 6 10 10 6 7 10 15 121 1989 7 6 12 11 12 7 7 7 5 6 13 7 100 1990 9 9 8 11 8 7 3 10 1 9 7 13 95 1991 11 7 8 12 13 9 4 6 5 6 10 11 102 1992 7 8 10 17 16 8 6 7 4 3 12 16 114 1993 8 6 8 15 19 8 4 5 7 9 7 13 109 1994 9 12 9 17 13 7 4 3 5 13 7 11 110 1995 9 6 6 10 12 12 6 3 8 7 4 10 93 1996 17 10 10 9 10 8 6 6 2 11 8 10 107 1997 8 8 12 10 5 10 9 1 3 7 7 8 88 1998 13 9 11 11 15 6 6 12 9 12 9 13 126 1999 7 7 6 12 7 7 12 3 2 3 7 8 81 2000 9 8 12 13 5 5 2 3 7 9 9 8 90 2001 9 6 9 11 11 8 7 6 4 7 13 12 103 2002 8 10 11 11 6 10 7 4 1 10 11 6 95 2003 5 8 9 13 9 6 11 3 2 10 9 11 96 2004 11 14 11 9 11 4 11 2 5 4 11 11 104 2005 9 10 12 10 22 7 5 10 3 8 9 11 116 MEAN 9.6 8.9 10.3 11.7 12.5 7.9 6.4 5.8 4.4 8.8 10.2 10.8 107.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 40 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF CLOUDY DAYS (7-8)/8 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 10 *** 13 0 1 2 0 9 9 14 *** 1978 10 11 10 12 11 3 0 0 0 3 12 11 83 1979 12 16 12 17 9 3 0 0 2 5 3 12 91 1980 10 11 13 10 7 3 0 0 1 5 9 9 78 1981 6 14 13 14 8 3 2 0 1 5 4 9 79 1982 12 12 13 4 9 2 4 2 0 10 12 7 87 1983 9 3 8 11 6 0 1 3 3 1 1 8 54 1984 6 13 21 9 12 1 0 0 0 3 9 7 81 1985 14 9 13 9 1 0 0 1 0 3 7 12 69 1986 7 10 13 15 3 1 1 2 0 5 9 8 74 1987 8 11 21 10 9 1 3 0 2 9 7 10 91 1988 12 13 11 14 4 1 2 1 0 4 7 6 75 1989 14 7 11 3 4 2 1 0 2 4 1 13 62 1990 15 11 10 12 6 0 4 0 0 2 3 9 72 1991 12 14 20 6 9 2 1 0 1 4 5 8 82 1992 12 9 14 10 10 4 0 3 1 3 3 12 81 1993 10 14 13 11 6 3 0 0 0 0 16 7 80 1994 10 9 15 4 3 4 0 0 0 4 8 8 65 1995 7 7 8 15 1 2 0 0 1 1 2 6 50 1996 5 10 18 14 11 2 0 1 2 4 2 4 73 1997 8 7 11 7 8 3 0 0 0 5 9 10 68 1998 15 12 12 9 6 0 4 1 1 1 3 9 73 1999 11 8 12 8 3 0 1 0 2 3 12 7 67 2000 8 7 7 4 2 1 0 0 2 5 10 10 56 2001 11 7 8 7 5 2 0 0 0 4 10 12 66 2002 13 10 8 14 10 0 1 0 0 0 8 12 76 2003 11 13 15 15 6 4 0 0 1 2 9 10 86 2004 9 3 12 11 7 1 1 0 0 3 7 10 64 2005 11 7 12 7 3 4 0 0 0 1 5 7 57 MEAN 10.3 9.9 12.6 10.1 6.6 1.8 0.9 0.6 0.8 3.7 7.0 9.2 73.5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 41 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M NO. OF DAYS WITH VISIBILITY LESS THAN OR EQUAL 2 KM YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 *** *** 0 *** 1 0 1 0 0 2 4 4 *** 1978 2 6 0 1 2 0 0 0 0 0 0 1 12 1979 9 5 2 0 0 0 0 0 0 1 0 1 18 1980 6 8 0 1 0 0 0 0 0 2 1 5 23 1981 1 2 1 2 1 0 0 0 0 0 1 7 15 1982 10 8 2 0 0 1 0 0 0 1 1 2 25 1983 4 3 2 0 0 0 0 0 0 1 0 2 12 1984 3 1 0 0 1 0 0 0 0 0 1 3 9 1985 4 1 0 0 0 0 0 0 0 0 0 9 14 1986 7 0 3 4 0 0 0 0 0 0 3 5 22 1987 3 5 7 2 1 0 0 0 0 1 0 1 20 1988 11 7 2 2 3 0 0 2 0 0 1 4 32 1989 11 6 2 0 0 0 0 0 1 0 1 3 24 1990 7 7 6 1 0 0 0 0 1 0 3 11 36 1991 8 3 8 0 1 1 0 0 0 0 1 2 24 1992 3 5 7 4 1 1 0 1 0 0 1 6 29 1993 9 7 5 1 0 0 0 0 0 1 3 5 31 1994 6 1 3 1 0 0 0 0 0 2 2 1 16 1995 5 6 2 0 0 0 0 0 0 1 1 3 18 1996 2 6 8 1 0 0 0 0 0 0 2 1 20 1997 3 3 5 1 0 1 0 0 0 0 0 0 13 1998 7 9 0 2 0 0 0 0 0 2 0 2 22 1999 4 1 4 1 0 0 1 0 0 1 2 2 16 2000 4 5 4 0 0 0 0 1 1 2 2 5 24 2001 3 2 2 0 1 0 0 0 0 0 2 6 16 2002 3 6 1 5 4 0 0 0 0 0 3 8 30 2003 7 8 8 8 0 0 0 0 0 0 4 7 42 2004 6 2 4 3 3 1 0 0 0 1 6 4 30 2005 5 1 5 2 1 0 1 0 0 1 3 10 29 MEAN 5.5 4.4 3.2 1.5 0.7 0.2 0.1 0.1 0.1 0.7 1.7 4.1 22.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 42 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MONTHLY TOTAL OF SUNSHINE HOURS YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** 1978 ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** 1979 ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** 1980 ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ****** 1981 ***** ***** ***** ***** ***** 278.7 323.7 336.0 290.9 230.4 167.7 138.4 ****** 1982 126.5 113.1 139.3 239.7 257.3 308.5 317.9 294.7 272.8 168.6 127.8 149.5 2515.7 1983 144.0 188.3 178.2 169.5 219.0 308.9 328.9 292.6 234.5 255.8 178.2 144.4 2642.3 1984 154.3 127.6 89.6 208.1 207.8 298.0 340.2 301.0 280.3 244.8 125.5 131.0 2508.2 1985 106.5 143.7 154.9 194.0 299.1 267.9 292.0 333.4 289.1 244.3 171.9 104.7 2601.5 1986 172.9 130.5 168.1 173.5 278.7 299.8 310.4 338.0 297.2 227.5 145.9 159.8 2702.3 1987 152.0 146.7 92.4 217.6 246.7 338.6 311.7 327.4 253.4 201.0 186.8 157.5 2631.8 1988 119.2 120.4 181.4 169.1 279.7 324.0 303.6 310.8 282.8 241.3 197.2 171.2 2700.7 1989 123.9 191.4 185.6 273.6 304.5 311.2 312.4 332.6 270.5 244.0 210.9 122.9 2883.5 1990 130.7 139.2 192.0 198.4 302.6 328.5 315.3 322.9 295.6 239.6 228.7 137.5 2831.0 1991 131.8 128.8 101.0 242.5 218.4 293.2 321.3 336.3 254.0 252.4 174.2 126.9 2580.8 1992 129.6 135.7 130.3 159.1 214.6 282.3 327.8 295.7 278.1 245.9 189.9 91.6 2480.6 1993 138.1 118.9 180.8 193.1 227.1 301.3 333.4 327.5 258.6 248.9 ***** ***** ****** 1994 116.9 141.2 144.2 237.9 294.2 279.1 321.3 319.1 290.4 220.3 175.9 168.3 2708.8 1995 ***** ***** ***** ***** ***** 170.5 334.9 333.8 278.6 268.6 233.9 173.2 ****** 1996 181.6 139.7 122.4 174.8 247.0 310.2 356.3 300.5 283.8 231.8 212.6 188.6 2749.3 1997 167.5 163.8 173.1 244.9 275.0 290.8 341.0 353.0 282.8 243.6 166.6 145.2 2847.3 1998 115.6 115.0 200.5 232.8 279.7 349.1 318.3 313.4 273.9 256.8 191.2 125.3 2771.6 1999 154.1 186.8 201.3 219.6 296.3 341.7 321.2 359.6 283.6 262.1 139.5 173.9 2939.7 2000 177.0 177.8 204.1 262.1 325.0 343.2 368.3 356.9 262.7 222.7 161.9 130.2 2991.9 2001 143.7 179.0 196.3 237.6 274.1 305.5 320.3 320.3 264.7 230.8 156.3 121.1 2749.7 2002 145.8 143.9 201.9 147.9 251.1 317.8 344.9 333.7 309.0 258.2 158.0 116.2 2728.4 2003 141.4 124.4 134.0 130.7 287.3 308.0 290.5 353.4 295.1 249.1 142.1 123.7 2579.7 2004 127.3 193.9 146.8 203.9 258.0 339.6 302.8 359.4 293.9 263.1 160.7 110.3 2759.7 2005 121.8 172.0 187.8 243.6 272.2 311.0 339.1 335.6 305.1 261.4 195.7 148.0 2893.3 MEAN 140.1 148.8 161.1 207.6 265.9 304.3 323.9 327.5 279.3 240.5 175.0 140.0 2714.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 43 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFE PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 899.0 ****** 894.5 890.8 889.4 892.3 896.8 898.2 897.5 897.2 ****** 1978 897.0 897.1 894.3 891.1 893.0 891.0 892.1 892.1 894.3 898.9 899.5 895.4 894.6 1979 897.6 894.1 894.6 894.0 895.8 893.8 891.5 893.2 897.5 897.6 900.3 895.8 895.5 1980 895.7 896.4 894.0 892.2 894.1 892.3 891.5 892.5 895.1 897.0 897.6 896.7 894.6 1981 895.7 894.5 892.7 893.3 893.8 893.3 891.5 893.0 897.4 900.1 896.8 897.0 894.9 1982 895.3 894.7 894.2 894.4 897.3 893.5 890.7 892.5 897.1 897.6 899.3 898.1 895.4 1983 896.3 894.8 895.2 894.3 893.4 893.3 890.4 891.6 895.1 898.7 899.0 899.0 895.1 1984 896.9 900.5 894.3 892.6 893.2 892.7 891.0 890.7 896.4 899.5 898.0 901.1 895.6 1985 896.2 890.0 897.9 893.0 894.1 891.3 888.6 890.9 891.8 894.6 895.8 893.3 893.1 1986 892.7 891.3 893.7 892.4 890.5 887.4 889.7 891.1 894.0 895.4 895.1 893.5 892.2 1987 893.8 893.5 888.0 891.4 891.2 889.8 889.2 889.4 893.0 897.5 896.4 893.4 892.2 1988 892.9 892.6 888.3 891.3 891.0 887.3 887.1 888.7 892.3 895.3 893.8 891.5 891.0 1989 892.9 895.2 889.7 892.8 892.0 888.7 889.0 889.2 890.4 894.9 894.5 892.3 891.8 1990 893.8 891.0 894.2 889.6 890.7 888.0 888.2 889.6 890.8 895.0 895.3 894.6 891.7 1991 893.3 893.6 891.5 891.0 888.5 889.2 887.1 888.7 892.8 895.3 896.3 891.5 891.6 1992 892.1 888.8 891.4 889.8 891.7 888.0 888.3 891.4 893.2 894.1 894.4 892.9 891.3 1993 893.5 893.2 891.6 890.1 890.4 889.0 889.3 890.6 891.6 897.8 895.1 895.7 892.3 1994 892.8 891.5 891.4 892.0 890.6 887.7 886.7 888.1 895.3 896.5 892.1 893.9 891.6 1995 894.2 892.7 891.6 889.8 892.0 888.3 886.0 888.3 890.8 895.4 893.1 895.4 891.5 1996 895.0 891.9 890.2 891.6 891.5 889.5 889.6 889.8 889.3 894.2 898.2 894.8 892.1 1997 891.7 893.0 888.8 888.8 891.7 888.1 886.5 888.7 892.5 893.4 895.6 892.8 891.0 1998 891.2 892.2 889.9 890.4 891.6 890.9 887.7 890.3 891.6 895.3 895.4 896.8 891.9 1999 893.9 890.5 890.8 891.7 891.2 888.5 887.6 889.0 891.0 893.7 894.4 896.8 891.6 2000 891.7 892.4 890.9 890.1 889.3 888.9 889.1 889.6 891.0 895.5 897.2 894.0 891.6 2001 895.7 891.8 891.3 890.5 888.8 888.1 888.2 889.8 891.6 894.3 893.5 894.5 891.5 2002 893.4 892.6 890.9 888.6 890.1 888.2 889.2 888.0 892.3 894.0 895.8 893.5 891.4 2003 892.9 889.4 890.8 891.6 892.2 888.9 886.6 890.0 891.8 892.7 895.2 895.4 891.5 2004 889.7 891.0 893.9 890.6 888.6 888.9 888.9 888.2 893.3 896.1 893.0 893.5 891.3 2005 891.7 891.5 889.4 892.9 890.9 888.7 887.9 889.0 891.1 895.2 895.9 895.6 891.7 MEAN 893.9 892.9 892.2 891.5 891.9 889.8 888.9 890.2 893.1 896.0 896.0 895.0 892.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 44 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFE PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 911.2 ****** 900.0 895.3 894.9 898.4 905.4 907.3 905.7 908.5 ****** DAY-HOUR **-** **-** 9-15 **-** 29- 3 10- 6 21- 6 23- 3 30- 9 24- 6 27- 6 13- 6 1978 907.9 908.3 902.3 899.5 901.5 903.5 899.2 898.5 902.1 907.0 907.8 911.2 911.2 DAY-HOUR 13- 6 6- 6 19-15 12- 3 3- 3 8- 3 8- 3 21- 6 28- 6 10- 6 27- 6 24- 6 1979 910.6 902.9 904.0 905.9 903.6 901.9 898.3 900.2 903.4 907.0 909.2 905.5 910.6 DAY-HOUR 18- 6 13- 6 5- 6 27- 6 25- 6 10-15 20- 6 29- 6 23- 6 9- 6 11- 6 4- 6 1980 903.0 904.2 902.7 901.4 902.9 899.6 899.7 902.7 903.1 902.4 906.2 905.9 906.2 DAY-HOUR 31-18 1- 6 27-18 1-18 16- 6 1- 6 10-12 30- 6 25-18 7- 6 3- 6 17- 6 1981 906.4 901.0 904.6 901.5 904.2 900.5 897.5 898.2 904.3 908.0 905.3 905.3 908.0 DAY-HOUR 9- 6 28- 6 8- 6 10- 6 21-18 10- 3 29-18 24- 3 27- 6 29- 6 16- 6 1-18 1982 906.0 905.0 902.1 906.3 907.7 899.9 897.4 898.1 903.4 908.8 905.5 907.4 908.8 DAY-HOUR 19- 6 11- 6 5-21 4- 6 10- 6 6-21 8- 6 14- 6 20- 6 25- 6 18- 9 10- 6 1983 910.8 903.7 903.8 901.5 900.9 901.4 898.5 898.0 900.7 906.0 913.1 909.0 913.1 DAY-HOUR 8- 6 10- 6 14-18 29-18 16- 3 1- 6 1- 3 17- 6 28- 6 28- 6 26- 6 4- 6 1984 906.2 909.6 902.6 900.5 899.9 898.3 896.5 896.1 901.4 908.3 909.4 909.9 909.9 DAY-HOUR 4-18 18-15 29- 6 14- 6 17- 6 15-18 3-18 30- 6 22- 6 21-18 27- 6 18- 6 1985 904.3 901.3 910.8 907.4 902.6 897.6 893.3 895.2 901.1 903.1 902.4 902.5 910.8 DAY-HOUR 14-15 24- 6 5-18 17- 6 12- 6 10- 6 1- 6 13- 6 22- 6 31-18 17-15 9- 6 1986 902.1 899.3 902.2 901.1 898.6 894.2 894.7 894.8 898.9 902.9 903.7 906.3 906.3 DAY-HOUR 28- 6 22- 6 3- 6 4-18 18- 6 2-18 3- 6 24- 6 22- 6 15- 6 16- 6 7- 0 1987 905.0 904.7 899.2 899.1 897.9 894.9 893.5 896.1 899.8 904.5 908.3 907.2 908.3 DAY-HOUR 21- 6 1- 6 22-15 22- 6 13- 6 6- 6 10-15 5- 6 24- 3 16- 6 30- 6 1- 6 1988 903.5 904.1 900.8 903.0 899.2 893.1 892.0 896.0 899.5 903.0 903.8 900.6 904.1 DAY-HOUR 3- 6 7- 6 17- 6 8-18 4-18 1- 3 31- 6 21- 6 21- 6 28- 6 6- 6 5- 6 1989 903.6 904.1 897.1 898.0 897.8 893.8 896.0 896.1 901.4 903.8 902.5 897.6 904.1 DAY-HOUR 22- 6 8- 6 8- 6 11- 6 21- 6 2- 6 10- 3 19- 3 23- 6 24- 6 8- 6 18-18 1990 902.1 901.8 905.8 897.9 899.3 893.9 892.9 894.8 897.0 905.6 905.0 902.9 905.8 DAY-HOUR 26- 6 8- 6 17- 6 3- 6 16- 6 7- 6 17- 3 29- 6 16- 6 15- 6 22- 6 29- 6 1991 901.7 903.7 898.3 898.8 895.2 896.1 893.6 894.1 899.1 900.4 901.8 902.0 903.7 DAY-HOUR 11- 6 15- 6 12- 9 29- 3 25- 9 17- 6 11- 6 22- 6 11- 6 13- 6 27- 6 17- 6 1992 903.9 898.3 900.0 896.7 899.7 894.3 894.4 898.8 899.4 900.5 905.4 901.0 905.4 DAY-HOUR 10- 6 16- 6 12-15 30-18 2-18 6-21 13- 3 31- 6 30- 6 30- 6 4- 6 2-18 1993 906.0 903.3 900.8 898.9 899.2 899.4 894.9 895.3 900.4 904.5 903.2 901.7 906.0 DAY-HOUR 6- 6 9- 6 16- 6 1- 6 9- 6 22-18 27- 6 29- 3 23- 6 20- 6 22- 6 27- 6 1994 904.1 903.6 898.8 905.0 897.8 892.1 891.0 893.2 902.3 901.8 900.3 902.6 905.0 DAY-HOUR 9-18 18- 6 1- 6 5- 6 18-18 9- 3 2- 3 15- 6 23- 6 23- 6 2- 6 22- 6 1995 904.6 900.4 901.3 897.8 898.6 894.5 890.9 894.3 897.9 906.3 902.6 903.4 906.3 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 6 23- 6 25- 3 22- 6 17-18 15-18 10- 6 1996 906.4 899.4 895.1 900.8 897.1 895.5 897.1 899.4 898.4 905.0 908.5 903.7 908.5 DAY-HOUR 10- 6 13- 6 16- 6 4-18 7- 6 11-18 3- 6 29- 6 30-21 2- 6 18- 6 8- 6 1997 901.7 900.1 904.4 896.1 898.6 894.2 892.9 894.3 899.4 900.7 907.8 901.3 907.8 DAY-HOUR 24- 6 25- 6 11- 6 20- 6 12- 6 6-18 19- 6 21- 6 19- 6 8- 6 7- 6 28- 6 1998 900.1 906.0 900.8 901.8 899.4 896.0 894.4 895.0 898.2 905.8 903.8 905.5 906.0 DAY-HOUR 4- 6 22-18 26- 6 12- 6 9- 6 5- 6 15- 6 25- 6 27- 6 9- 6 20-18 29- 6 1999 908.7 900.6 898.6 899.1 897.0 896.5 892.9 896.4 897.2 900.3 904.5 905.2 908.7 DAY-HOUR 2- 6 12- 6 18-18 23- 6 9- 6 16-18 19- 6 20- 6 5- 6 26- 6 30-18 1- 6 2000 900.3 903.0 901.2 897.1 897.4 895.6 894.6 895.5 896.8 901.3 908.3 902.7 908.3 DAY-HOUR 31- 6 29- 6 27- 3 2- 6 5- 3 16- 3 30- 6 23- 6 29- 6 15-21 17- 6 4- 6 2001 901.0 905.0 902.0 902.1 895.8 895.5 893.3 896.3 899.2 903.1 900.3 901.3 905.0 DAY-HOUR 26- 6 9- 9 1-18 1-18 18-18 2- 3 29- 6 5- 3 22- 6 10- 6 2- 6 10- 6 2002 901.3 903.5 905.0 897.8 897.2 896.0 895.0 894.7 898.3 900.0 903.8 906.5 906.5 DAY-HOUR 27- 6 19- 6 10-18 1- 6 16-21 25- 3 3- 6 31- 0 21- 6 11- 6 18- 6 3- 6 2003 899.7 900.0 901.8 900.0 901.9 895.8 894.6 894.2 900.2 899.9 904.4 907.3 907.3 DAY-HOUR 11- 6 12-18 2-18 30-18 1- 6 6- 6 3- 6 4- 6 27- 6 15- 6 23- 6 11-18 2004 897.8 896.5 905.4 898.6 896.9 897.7 895.2 893.2 898.9 902.4 899.7 904.3 905.4 DAY-HOUR 12- 6 13- 6 8-15 11- 6 22- 3 6- 3 6- 3 17- 6 21- 6 14-18 28-21 3- 6 2005 900.7 900.7 895.8 905.3 897.1 893.7 892.4 894.4 896.3 903.0 902.3 905.7 905.7 DAY-HOUR 8- 6 17- 6 16- 6 6- 6 11-18 8-18 9- 3 27- 3 9- 6 23-18 25- 6 29- 6 1977-2005 910.8 909.6 911.2 907.4 907.7 903.5 899.7 902.7 905.4 908.8 913.1 911.2 913.1 YEAR-DAY 83- 8 84-18 77- 9 85-17 82-10 78- 8 80-10 80-30 77-30 82-25 83-26 78-24 83-26 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 45 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFE PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 889.8 ****** 887.1 884.6 884.1 883.9 890.8 887.4 888.1 886.9 ****** DAY-HOUR **-** **-** 4-12 **-** 25-12 22-12 27-12 17-12 11-12 5-12 18- 9 22-12 1978 883.5 887.3 880.6 879.6 884.0 877.9 881.1 886.7 888.0 890.5 888.7 883.0 877.9 DAY-HOUR 21- 9 22- 3 13-12 25-15 30- 9 21-12 1-15 14-12 1-15 1- 3 1- 0 16- 9 1979 884.8 884.2 882.2 886.0 887.7 886.1 883.4 886.3 890.1 888.1 883.6 883.3 882.2 DAY-HOUR 6- 9 11-15 27-15 12-12 17- 9 23-12 6-15 14-12 5-15 4-12 29-12 1-12 1980 886.2 884.8 878.2 882.4 888.6 885.2 886.6 885.7 886.3 888.9 890.4 884.8 878.2 DAY-HOUR 6-12 18-15 19- 6 16- 9 23-12 16-15 2-15 19-15 21-12 4-15 10- 3 12- 3 1981 884.4 884.0 879.7 880.7 882.4 885.3 882.7 887.3 890.5 892.7 887.4 888.2 879.7 DAY-HOUR 3-12 1- 3 13- 3 30-18 1- 3 16-12 6- 6 13-12 12-12 16-12 5-15 18-21 1982 884.2 884.2 884.1 884.2 888.9 887.8 881.9 885.4 891.7 889.5 889.6 889.2 881.9 DAY-HOUR 29- 3 1- 3 3- 0 18-15 15-12 1-15 30-12 1- 9 13-12 20-12 6-12 28-12 1983 879.5 883.6 885.1 887.9 887.2 886.4 881.6 884.7 887.5 888.1 890.9 887.0 879.5 DAY-HOUR 24-18 18- 3 5-18 23-15 3-12 21-12 27-12 28-15 8-12 4-12 12-12 12- 3 1984 889.7 884.4 883.6 885.2 884.9 884.6 886.9 884.6 889.4 886.7 884.7 889.3 883.6 DAY-HOUR 14-12 8- 3 16- 9 10- 3 29- 9 20-15 15-15 15-12 8-12 18-12 12-12 14-12 1985 886.3 877.7 880.0 885.2 887.5 884.9 882.4 885.5 885.3 887.3 890.8 876.4 876.4 DAY-HOUR 2-18 6- 3 24- 9 24-12 4-12 19-15 19-15 8-12 7-12 10-12 7-12 19- 3 1986 880.2 884.5 886.0 885.3 882.9 881.4 884.7 885.6 889.4 889.8 884.5 881.7 880.2 DAY-HOUR 20- 0 6-18 10- 0 11-12 3-12 17-12 20-12 15-12 6-12 1-12 9- 3 30-12 1987 883.7 882.2 876.8 879.8 884.1 885.6 882.2 883.0 885.9 888.2 884.4 882.8 876.8 DAY-HOUR 7- 3 10-15 14- 9 19-18 22-15 18-15 8-12 18-15 5-12 4-12 7-12 24- 9 1988 882.7 883.9 875.6 882.3 882.3 879.9 882.1 881.7 886.0 885.2 884.4 873.1 873.1 DAY-HOUR 29- 3 2- 0 5- 0 30- 9 28-15 23-12 15-15 29-15 5-12 30-12 20- 3 27-12 1989 881.2 883.1 878.1 887.0 883.7 882.1 883.2 880.9 884.2 884.9 887.5 883.6 878.1 DAY-HOUR 17- 9 23- 3 30- 6 14-12 7- 0 10-15 6-15 1-15 12-12 2- 9 25- 0 5- 3 1990 884.8 875.9 886.5 880.0 879.2 879.9 882.8 882.6 884.8 887.7 885.3 885.6 875.9 DAY-HOUR 23-12 16- 0 24-12 15-12 13- 9 27-12 27-15 7-12 5-12 31-18 1- 0 25-12 1991 883.3 884.4 877.5 878.4 879.8 880.0 878.8 883.0 884.7 889.9 888.7 882.5 877.5 DAY-HOUR 5- 3 4-12 7- 0 5- 0 22- 6 11-15 7-15 11-15 7-12 4-12 5- 0 1-12 1992 880.2 880.5 877.9 884.3 883.9 881.4 883.6 885.3 885.6 887.7 884.6 886.3 877.9 DAY-HOUR 1- 3 24-21 31- 3 22-15 10-12 27-12 9-15 1-12 17-15 24-12 25-12 27-12 1993 880.0 885.4 879.7 881.5 885.8 884.2 884.5 883.4 884.3 887.2 882.9 888.1 879.7 DAY-HOUR 8-12 21-12 22- 0 20-21 14- 9 16-15 24-15 12-12 3-15 1-12 14- 0 5-12 1994 880.6 876.2 880.3 882.4 881.6 882.1 880.9 882.0 889.1 888.5 877.9 875.5 875.5 DAY-HOUR 16-12 1-12 7-18 2- 3 1-12 16- 0 20-12 2-12 2-15 14-12 26- 3 4- 0 1995 885.6 881.6 878.3 884.5 885.1 880.9 880.6 882.3 882.1 887.6 880.0 888.3 878.3 DAY-HOUR 17- 9 5-12 26- 0 19-21 7-12 30-12 11-12 22-12 19-12 11-12 26- 0 25-12 1996 883.3 879.3 881.8 882.0 885.4 883.4 884.1 882.4 881.9 882.4 891.4 885.7 879.3 DAY-HOUR 6-21 5-12 26- 3 13-12 29-12 1-15 7-12 8-12 9- 0 27- 9 28-12 24-21 1997 881.6 884.1 878.6 877.2 879.9 882.7 881.4 881.7 882.3 888.2 888.7 883.0 877.2 DAY-HOUR 16- 3 1- 0 25-21 9-21 4-15 30-12 11-12 5-15 2- 9 6-12 5-12 10- 0 1998 876.9 877.6 877.3 881.8 881.2 886.2 877.7 885.9 884.9 885.2 888.1 886.6 876.9 DAY-HOUR 13-12 14- 0 19- 0 21-12 22- 3 24-12 5-15 22-12 5-12 1-12 1-12 21- 0 1999 884.5 876.0 882.9 882.8 883.0 877.5 883.2 884.6 883.6 888.5 885.9 887.0 876.0 DAY-HOUR 9-15 21- 0 21-12 14-12 14- 6 25-12 22-15 6-12 15-12 24-12 26-12 14-12 2000 879.6 882.0 881.8 884.0 882.6 883.1 883.3 881.6 882.7 890.0 891.1 885.9 879.6 DAY-HOUR 21- 3 7- 0 24-21 21-15 26-15 26-12 8-15 3-15 1-12 1- 0 6-12 15-21 2001 890.3 872.8 880.0 881.3 879.9 878.9 882.2 881.7 885.6 886.9 882.3 885.6 872.8 DAY-HOUR 18-12 21-15 25-12 12-18 9-12 6-15 10-12 31-12 8-12 25- 0 17-12 5-12 2002 882.3 881.7 880.0 876.0 884.4 879.0 881.2 880.9 886.7 887.6 885.4 878.9 876.0 DAY-HOUR 8-12 27- 0 29- 0 3-18 29-12 20-15 24-15 17-12 10-12 21-12 12-12 21-21 2003 877.8 876.8 878.4 884.9 885.6 882.7 880.7 886.0 884.5 884.5 886.9 885.1 876.8 DAY-HOUR 28-21 19- 6 26-15 5-15 29-12 30-12 8-15 26-15 7- 0 27- 9 20-12 6-15 2004 880.1 876.8 884.1 879.5 878.5 881.9 883.7 879.6 885.9 888.6 879.5 884.1 876.8 DAY-HOUR 23-12 15-15 30-21 17-12 13- 9 17-15 11- 3 12-15 10-15 22- 9 23-18 10- 0 2005 876.0 881.0 880.5 883.5 880.9 877.8 879.5 882.4 885.4 885.2 888.2 882.7 876.0 DAY-HOUR 23- 9 2- 0 24- 3 27-12 3-15 20-15 6-12 8-12 12-12 20-12 9- 0 24- 0 1977-2005 876.0 872.8 875.6 876.0 878.5 877.5 877.7 879.6 881.9 882.4 877.9 873.1 872.8 YEAR-DAY 5-23 1-21 88- 5 2- 3 4-13 99-25 98- 5 4-12 96- 9 96-27 94-26 88-27 1-21 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 46 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QNH PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1024.2 ****** 1019.2 1015.1 1013.6 1016.8 1021.8 1023.3 1022.6 1022.2 ****** 1978 1022.0 1022.1 1019.0 1015.4 1017.5 1015.4 1016.5 1016.6 1018.9 1024.2 1024.8 1020.3 1019.4 1979 1022.6 1018.8 1019.3 1018.6 1020.7 1018.4 1015.9 1017.8 1022.6 1022.6 1025.7 1020.7 1020.3 1980 1020.5 1021.4 1018.7 1016.7 1018.8 1016.8 1015.9 1017.0 1019.9 1022.1 1022.7 1021.6 1019.3 1981 1020.6 1019.2 1017.2 1017.9 1018.5 1017.9 1015.9 1017.6 1022.4 1025.4 1021.7 1022.0 1019.7 1982 1020.1 1019.4 1018.9 1019.1 1022.4 1018.1 1015.0 1017.0 1022.1 1022.7 1024.6 1023.2 1020.2 1983 1021.2 1019.6 1020.0 1019.0 1018.0 1017.9 1014.7 1016.0 1019.9 1023.9 1024.2 1024.2 1019.9 1984 1021.8 1025.9 1019.0 1017.1 1017.8 1017.2 1015.3 1014.9 1021.4 1024.8 1023.1 1026.6 1020.4 1985 1021.1 1014.2 1023.0 1017.6 1018.8 1015.6 1012.6 1015.2 1016.3 1019.3 1020.7 1017.9 1017.7 1986 1017.3 1015.7 1018.3 1016.9 1014.8 1011.4 1013.9 1015.4 1018.6 1020.2 1019.9 1018.1 1016.7 1987 1018.4 1018.2 1012.0 1015.8 1015.6 1014.0 1013.3 1013.5 1017.6 1022.6 1021.4 1018.0 1016.7 1988 1017.5 1017.1 1012.3 1015.7 1015.3 1011.2 1011.0 1012.7 1016.7 1020.1 1018.5 1015.9 1015.3 1989 1017.5 1020.1 1013.9 1017.3 1016.5 1012.8 1013.1 1013.3 1014.6 1019.7 1019.2 1016.8 1016.2 1990 1018.4 1015.3 1018.9 1013.7 1015.0 1012.0 1012.2 1013.8 1015.1 1019.7 1020.2 1019.3 1016.1 1991 1017.9 1018.2 1015.9 1015.4 1012.6 1013.4 1010.9 1012.8 1017.3 1020.1 1021.3 1015.9 1016.0 1992 1016.5 1012.9 1015.8 1014.0 1016.1 1012.0 1012.3 1015.8 1017.8 1018.8 1019.1 1017.4 1015.7 1993 1018.1 1017.7 1016.0 1014.3 1014.7 1013.1 1013.4 1014.9 1016.0 1022.9 1019.9 1020.5 1016.8 1994 1017.3 1015.9 1015.7 1016.5 1014.8 1011.6 1010.6 1012.1 1020.1 1021.5 1016.6 1018.6 1015.9 1995 1018.9 1017.2 1015.9 1014.0 1016.5 1012.3 1009.8 1012.3 1015.1 1020.3 1017.6 1020.3 1015.9 1996 1019.8 1016.4 1014.5 1016.0 1015.9 1013.7 1013.8 1014.0 1013.4 1018.9 1023.3 1019.6 1016.6 1997 1016.2 1017.6 1012.9 1012.9 1016.1 1012.1 1010.3 1012.8 1017.0 1017.9 1020.5 1017.3 1015.3 1998 1015.5 1016.6 1014.1 1014.7 1016.0 1015.2 1011.6 1014.6 1016.0 1020.2 1020.3 1021.8 1016.4 1999 1018.5 1014.7 1015.1 1016.1 1015.6 1012.5 1011.6 1013.1 1015.4 1018.4 1019.2 1021.8 1016.0 2000 1016.1 1016.9 1015.3 1014.3 1013.5 1013.0 1013.2 1013.7 1015.3 1020.4 1022.2 1018.7 1016.1 2001 1020.5 1016.2 1015.6 1014.8 1012.9 1012.1 1012.3 1014.0 1016.0 1019.0 1018.1 1019.2 1015.9 2002 1018.0 1017.1 1015.2 1012.6 1014.3 1012.2 1013.3 1012.0 1016.8 1018.6 1020.6 1018.2 1015.7 2003 1017.5 1013.6 1015.1 1016.0 1016.7 1012.9 1010.4 1014.3 1016.2 1017.2 1020.0 1020.2 1015.8 2004 1013.9 1015.3 1018.5 1014.9 1012.6 1013.0 1013.0 1012.2 1017.9 1021.0 1017.6 1018.2 1015.7 2005 1016.1 1015.9 1013.6 1017.4 1015.2 1012.8 1011.9 1013.1 1015.5 1020.1 1020.8 1020.5 1016.1 MEAN 1018.6 1017.5 1016.7 1015.9 1016.3 1014.0 1013.0 1014.5 1017.7 1020.9 1020.9 1019.8 1017.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 47 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QNH PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1037.8 ****** 1025.3 1020.1 1019.7 1023.6 1031.3 1033.5 1031.7 1034.8 ****** DAY-HOUR **-** **-** 9-15 **-** 29- 3 10- 6 21- 6 23- 3 30- 9 24- 6 27- 6 13- 6 1978 1034.1 1034.6 1027.9 1024.8 1027.0 1029.2 1024.5 1023.7 1027.7 1033.1 1034.0 1037.8 1037.8 DAY-HOUR 13- 6 6- 6 19-15 12- 3 3- 3 8- 3 8- 3 21- 6 28- 6 10- 6 27- 6 24- 6 1979 1037.1 1028.6 1029.8 1031.9 1029.3 1027.5 1023.5 1025.6 1029.1 1033.1 1035.6 1031.5 1037.1 DAY-HOUR 18- 6 13- 6 5- 6 27- 6 25- 6 10-15 20- 6 29- 6 23- 6 9- 6 11- 6 4- 6 1980 1028.7 1030.0 1028.3 1026.9 1028.6 1024.9 1025.0 1028.3 1028.8 1028.0 1032.2 1031.9 1032.2 DAY-HOUR 31-18 1- 6 27-18 1-18 16- 6 1- 6 10-12 30- 6 25-18 7- 6 3- 6 17- 6 1981 1032.5 1026.5 1030.5 1027.0 1030.0 1025.9 1022.6 1023.3 1030.1 1034.2 1031.2 1031.2 1034.2 DAY-HOUR 9- 6 28- 6 8- 6 10- 6 21-18 10- 3 29-18 24- 3 27- 6 29- 6 16- 6 1-18 1982 1032.0 1030.9 1027.7 1032.3 1033.9 1025.2 1022.5 1023.2 1029.1 1035.1 1031.5 1033.6 1035.1 DAY-HOUR 19- 6 11- 6 5-21 4- 6 10- 6 6-21 8- 6 14- 6 20- 6 25- 6 18- 9 10- 6 1983 1037.3 1029.5 1029.6 1027.0 1026.3 1026.9 1023.7 1023.1 1026.1 1032.0 1039.9 1035.3 1039.9 DAY-HOUR 8- 6 10- 6 14-18 29-18 16- 3 1- 6 1- 3 17- 6 28- 6 28- 6 26- 6 4- 6 1984 1032.2 1036.0 1028.2 1025.9 1025.2 1023.5 1021.5 1021.0 1026.9 1034.6 1035.8 1036.3 1036.3 DAY-HOUR 4-18 18-15 29- 6 14- 6 17- 6 15-18 3-18 30- 6 22- 6 21-18 27- 6 18- 6 1985 1030.1 1026.8 1037.3 1033.6 1028.2 1022.7 1017.9 1020.0 1026.6 1028.8 1028.0 1028.1 1037.3 DAY-HOUR 14-15 24- 6 5-18 17- 6 12- 6 10- 6 1- 6 13- 6 22- 6 31-18 17-15 9- 6 1986 1027.7 1024.6 1027.8 1026.6 1023.8 1018.9 1019.4 1019.6 1024.1 1028.6 1029.5 1032.3 1032.3 DAY-HOUR 28- 6 22- 6 3- 6 4-18 18- 6 2-18 3- 6 24- 6 22- 6 15- 6 16- 6 7- 0 1987 1030.9 1030.6 1024.5 1024.3 1023.0 1019.7 1018.1 1021.0 1025.1 1030.3 1034.6 1033.3 1034.6 DAY-HOUR 21- 6 1- 6 22-15 22- 6 13- 6 6- 6 10-15 5- 6 24- 3 16- 6 30- 6 1- 6 1988 1029.2 1029.9 1026.2 1028.7 1024.5 1017.7 1016.4 1020.9 1024.8 1028.7 1029.6 1026.0 1029.9 DAY-HOUR 3- 6 7- 6 17- 6 8-18 4-18 1- 3 31- 6 21- 6 21- 6 28- 6 6- 6 5- 6 1989 1029.3 1029.9 1022.1 1023.1 1022.9 1018.4 1020.9 1021.0 1026.9 1029.6 1028.1 1022.7 1029.9 DAY-HOUR 22- 6 8- 6 8- 6 11- 6 21- 6 2- 6 10- 3 19- 3 23- 6 24- 6 8- 6 18-18 1990 1027.7 1027.3 1031.8 1023.0 1024.6 1018.6 1017.4 1019.6 1022.0 1031.6 1030.9 1028.6 1031.8 DAY-HOUR 26- 6 8- 6 17- 6 3- 6 16- 6 7- 6 17- 3 29- 6 16- 6 15- 6 22- 6 29- 6 1991 1027.2 1029.5 1023.5 1024.0 1020.0 1021.0 1018.2 1018.8 1024.3 1025.8 1027.3 1027.6 1029.5 DAY-HOUR 11- 6 15- 6 12- 9 29- 3 25- 9 17- 6 11- 6 22- 6 11- 6 13- 6 27- 6 17- 6 1992 1029.7 1023.5 1025.3 1021.7 1025.0 1019.0 1019.1 1024.0 1024.7 1025.9 1031.3 1026.5 1031.3 DAY-HOUR 10- 6 16- 6 12-15 30-18 2-18 6-21 13- 3 31- 6 30- 6 30- 6 4- 6 2-18 1993 1032.0 1029.0 1026.2 1024.1 1024.5 1024.7 1019.7 1020.1 1025.8 1030.3 1028.9 1027.2 1032.0 DAY-HOUR 6- 6 9- 6 16- 6 1- 6 9- 6 22-18 27- 6 29- 3 23- 6 20- 6 22- 6 27- 6 1994 1029.9 1029.3 1024.0 1030.9 1022.9 1016.6 1015.3 1017.8 1027.9 1027.3 1025.7 1028.2 1030.9 DAY-HOUR 9-18 18- 6 1- 6 5- 6 18-18 9- 3 2- 3 15- 6 23- 6 23- 6 2- 6 22- 6 1995 1030.5 1025.8 1026.8 1022.9 1023.8 1019.2 1015.2 1019.0 1023.0 1032.3 1028.2 1029.1 1032.3 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 6 23- 6 25- 3 22- 6 17-18 15-18 10- 6 1996 1032.5 1024.7 1019.9 1026.2 1022.1 1020.3 1022.1 1024.7 1023.6 1030.9 1034.8 1029.5 1034.8 DAY-HOUR 10- 6 13- 6 16- 6 4-18 7- 6 11-18 3- 6 29- 6 30-21 2- 6 18- 6 8- 6 1997 1027.2 1025.5 1030.2 1021.0 1023.8 1018.9 1017.4 1019.0 1024.7 1026.1 1034.0 1026.8 1034.0 DAY-HOUR 24- 6 25- 6 11- 6 20- 6 12- 6 6-18 19- 6 21- 6 19- 6 8- 6 7- 6 28- 6 1998 1025.5 1032.0 1026.2 1027.3 1024.7 1020.9 1019.1 1019.8 1023.3 1031.8 1029.6 1031.5 1032.0 DAY-HOUR 4- 6 22-18 26- 6 12- 6 9- 6 5- 6 15- 6 25- 6 27- 6 9- 6 20-18 29- 6 1999 1035.0 1026.0 1023.8 1024.3 1022.0 1021.5 1017.4 1021.3 1022.2 1025.7 1030.3 1031.1 1035.0 DAY-HOUR 2- 6 12- 6 18-18 23- 6 9- 6 16-18 19- 6 20- 6 5- 6 26- 6 30-18 1- 6 2000 1025.7 1028.7 1026.7 1022.1 1022.5 1020.5 1019.3 1020.3 1021.8 1026.8 1034.6 1028.3 1034.6 DAY-HOUR 31- 6 29- 6 27- 3 2- 6 5- 3 16- 3 30- 6 23- 6 29- 6 15-21 17- 6 4- 6 2001 1026.5 1030.9 1027.6 1027.7 1020.7 1020.3 1017.9 1021.2 1024.5 1028.8 1025.7 1026.8 1030.9 DAY-HOUR 26- 6 9- 9 1-18 1-18 18-18 2- 3 29- 6 5- 3 22- 6 10- 6 2- 6 10- 6 2002 1026.8 1029.2 1030.9 1022.9 1022.2 1020.9 1019.8 1019.4 1023.5 1025.3 1029.6 1032.6 1032.6 DAY-HOUR 27- 6 19- 6 10-18 1- 6 16-21 25- 3 3- 6 31- 0 21- 6 11- 6 18- 6 3- 6 2003 1025.0 1025.3 1027.3 1025.3 1027.5 1020.7 1019.3 1018.9 1025.6 1025.2 1030.2 1033.5 1033.5 DAY-HOUR 11- 6 12-18 2-18 30-18 1- 6 6- 6 3- 6 4- 6 27- 6 15- 6 23- 6 11-18 2004 1022.9 1021.5 1031.3 1023.8 1021.9 1022.8 1020.0 1017.8 1024.1 1028.0 1025.0 1030.1 1031.3 DAY-HOUR 12- 6 13- 6 8-15 11- 6 22- 3 6- 3 6- 3 17- 6 21- 6 14-18 28-21 3- 6 2005 1026.1 1026.1 1020.7 1031.2 1022.1 1018.3 1016.9 1019.1 1021.2 1028.7 1027.9 1031.7 1031.7 DAY-HOUR 8- 6 17- 6 16- 6 6- 6 11-18 8-18 9- 3 27- 3 9- 6 23-18 25- 6 29- 6 1977-2005 1037.3 1036.0 1037.8 1033.6 1033.9 1029.2 1025.0 1028.3 1031.3 1035.1 1039.9 1037.8 1039.9 YEAR-DAY 83- 8 84-18 77- 9 85-17 82-10 78- 8 80-10 80-30 77-30 82-25 83-26 78-24 83-26 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 48 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QNH PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1014.0 ****** 1011.0 1008.2 1007.7 1007.4 1015.1 1011.3 1012.1 1010.8 ****** DAY-HOUR **-** **-** 4-12 **-** 25-12 22-12 27-12 17-12 11-12 5-12 18- 9 22-12 1978 1007.0 1011.2 1003.8 1002.7 1007.6 1000.8 1004.3 1010.6 1012.0 1014.8 1012.8 1006.4 1000.8 DAY-HOUR 21- 9 22- 3 13-12 25-15 30- 9 21-12 1-15 14-12 1-15 1- 3 1- 0 16- 9 1979 1008.4 1007.8 1005.6 1009.8 1011.7 1009.9 1006.9 1010.1 1014.3 1012.1 1007.1 1006.8 1005.6 DAY-HOUR 6- 9 11-15 27-15 12-12 17- 9 23-12 6-15 14-12 5-15 4-12 29-12 1-12 1980 1010.0 1008.4 1001.1 1005.8 1012.7 1008.9 1010.4 1009.4 1010.1 1013.0 1014.7 1008.4 1001.1 DAY-HOUR 6-12 18-15 19- 6 16- 9 23-12 16-15 2-15 19-15 21-12 4-15 10- 3 12- 3 1981 1008.0 1007.6 1002.8 1003.9 1005.8 1009.0 1006.1 1011.2 1014.8 1017.2 1011.3 1012.2 1002.8 DAY-HOUR 3-12 1- 3 13- 3 30-18 1- 3 16-12 6- 6 13-12 12-12 16-12 5-15 18-21 1982 1007.8 1007.8 1007.7 1007.8 1013.0 1011.8 1005.2 1009.1 1016.1 1013.7 1013.8 1013.3 1005.2 DAY-HOUR 29- 3 1- 3 3- 0 18-15 15-12 1-15 30-12 1- 9 13-12 20-12 6-12 28-12 1983 1002.6 1007.1 1008.8 1011.9 1011.1 1010.2 1004.9 1008.3 1011.4 1012.1 1015.2 1010.9 1002.6 DAY-HOUR 24-18 18- 3 5-18 23-15 3-12 21-12 27-12 28-15 8-12 4-12 12-12 12- 3 1984 1013.9 1008.0 1007.1 1008.9 1008.6 1008.2 1010.8 1008.2 1013.6 1010.6 1008.3 1013.4 1007.1 DAY-HOUR 14-12 8- 3 16- 9 10- 3 29- 9 20-15 15-15 15-12 8-12 18-12 12-12 14-12 1985 1010.1 1000.5 1003.1 1008.9 1011.4 1008.6 1005.8 1009.2 1009.0 1011.2 1015.1 999.1 999.1 DAY-HOUR 2-18 6- 3 24- 9 24-12 4-12 19-15 19-15 8-12 7-12 10-12 7-12 19- 3 1986 1003.3 1008.1 1009.8 1009.0 1006.3 1004.7 1008.3 1009.3 1013.6 1014.0 1008.1 1005.0 1003.3 DAY-HOUR 20- 0 6-18 10- 0 11-12 3-12 17-12 20-12 15-12 6-12 1-12 9- 3 30-12 1987 1007.2 1005.6 999.5 1002.9 1007.7 1009.3 1005.6 1006.4 1009.7 1012.2 1008.0 1006.2 999.5 DAY-HOUR 7- 3 10-15 14- 9 19-18 22-15 18-15 8-12 18-15 5-12 4-12 7-12 24- 9 1988 1006.1 1007.4 998.2 1005.7 1005.7 1003.0 1005.4 1005.0 1009.8 1008.9 1008.0 995.4 995.4 DAY-HOUR 29- 3 2- 0 5- 0 30- 9 28-15 23-12 15-15 29-15 5-12 30-12 20- 3 27-12 1989 1004.4 1006.6 1001.0 1010.9 1007.2 1005.4 1006.7 1004.1 1007.8 1008.6 1011.4 1007.1 1001.0 DAY-HOUR 17- 9 23- 3 30- 6 14-12 7- 0 10-15 6-15 1-15 12-12 2- 9 25- 0 5- 3 1990 1008.4 998.5 1010.3 1003.1 1002.2 1003.0 1006.2 1006.0 1008.4 1011.7 1009.0 1009.3 998.5 DAY-HOUR 23-12 16- 0 24-12 15-12 13- 9 27-12 27-15 7-12 5-12 31-18 1- 0 25-12 1991 1006.8 1008.0 1000.3 1001.3 1002.9 1003.1 1001.8 1006.4 1008.3 1014.1 1012.8 1005.9 1000.3 DAY-HOUR 5- 3 4-12 7- 0 5- 0 22- 6 11-15 7-15 11-15 7-12 4-12 5- 0 1-12 1992 1003.3 1003.7 1000.8 1007.9 1007.4 1004.7 1007.1 1009.0 1009.3 1011.7 1008.2 1010.1 1000.8 DAY-HOUR 1- 3 24-21 31- 3 22-15 10-12 27-12 9-15 1-12 17-15 24-12 25-12 27-12 1993 1003.1 1009.1 1002.8 1004.8 1009.6 1007.8 1008.1 1006.9 1007.9 1011.1 1006.3 1012.1 1002.8 DAY-HOUR 8-12 21-12 22- 0 20-21 14- 9 16-15 24-15 12-12 3-15 1-12 14- 0 5-12 1994 1003.8 998.9 1003.4 1005.8 1004.9 1005.4 1004.1 1005.3 1013.2 1012.6 1000.8 998.1 998.1 DAY-HOUR 16-12 1-12 7-18 2- 3 1-12 16- 0 20-12 2-12 2-15 14-12 26- 3 4- 0 1995 1009.3 1004.9 1001.2 1008.1 1008.8 1004.1 1003.8 1005.7 1005.4 1011.6 1003.1 1012.3 1001.2 DAY-HOUR 17- 9 5-12 26- 0 19-21 7-12 30-12 11-12 22-12 19-12 11-12 26- 0 25-12 1996 1006.8 1002.3 1005.1 1005.3 1009.1 1006.9 1007.7 1005.8 1005.2 1005.8 1015.8 1009.4 1002.3 DAY-HOUR 6-21 5-12 26- 3 13-12 29-12 1-15 7-12 8-12 9- 0 27- 9 28-12 24-21 1997 1004.9 1007.7 1001.5 1000.0 1003.0 1006.1 1004.7 1005.0 1005.7 1012.2 1012.8 1006.4 1000.0 DAY-HOUR 16- 3 1- 0 25-21 9-21 4-15 30-12 11-12 5-15 2- 9 6-12 5-12 10- 0 1998 999.7 1000.4 1000.1 1005.1 1004.4 1010.0 1000.5 1009.7 1008.6 1008.9 1012.1 1010.4 999.7 DAY-HOUR 13-12 14- 0 19- 0 21-12 22- 3 24-12 5-15 22-12 5-12 1-12 1-12 21- 0 1999 1008.1 998.7 1006.3 1006.2 1006.4 1000.3 1006.7 1008.2 1007.1 1012.6 1009.7 1010.9 998.7 DAY-HOUR 9-15 21- 0 21-12 14-12 14- 6 25-12 22-15 6-12 15-12 24-12 26-12 14-12 2000 1002.7 1005.3 1005.1 1007.6 1006.0 1006.6 1006.8 1004.9 1006.1 1014.2 1015.4 1009.7 1002.7 DAY-HOUR 21- 3 7- 0 24-21 21-15 26-15 26-12 8-15 3-15 1-12 1- 0 6-12 15-21 2001 1014.6 995.1 1003.1 1004.5 1003.0 1001.9 1005.6 1005.0 1009.3 1010.8 1005.7 1009.3 995.1 DAY-HOUR 18-12 21-15 25-12 12-18 9-12 6-15 10-12 31-12 8-12 25- 0 17-12 5-12 2002 1005.7 1005.0 1003.1 998.7 1008.0 1002.0 1004.4 1004.1 1010.6 1011.6 1009.1 1001.9 998.7 DAY-HOUR 8-12 27- 0 29- 0 3-18 29-12 20-15 24-15 17-12 10-12 21-12 12-12 21-21 2003 1000.7 999.5 1001.3 1008.6 1009.3 1006.1 1003.9 1009.8 1008.1 1008.1 1010.8 1008.8 999.5 DAY-HOUR 28-21 19- 6 26-15 5-15 29-12 30-12 8-15 26-15 7- 0 27- 9 20-12 6-15 2004 1003.2 999.5 1007.7 1002.6 1001.4 1005.2 1007.2 1002.7 1009.7 1012.7 1002.6 1007.7 999.5 DAY-HOUR 23-12 15-15 30-21 17-12 13- 9 17-15 11- 3 12-15 10-15 22- 9 23-18 10- 0 2005 998.7 1004.2 1003.7 1007.0 1004.1 1000.7 1002.6 1005.8 1009.1 1008.9 1012.2 1006.1 998.7 DAY-HOUR 23- 9 2- 0 24- 3 27-12 3-15 20-15 6-12 8-12 12-12 20-12 9- 0 24- 0 1977-2005 998.7 995.1 998.2 998.7 1001.4 1000.3 1000.5 1002.7 1005.2 1005.8 1000.8 995.4 995.1 YEAR-DAY 5-23 1-21 88- 5 2- 3 4-13 99-25 98- 5 4-12 96- 9 96-27 94-26 88-27 1-21 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 49 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1014.2 1007.2 1005.0 1009.1 1015.9 1020.8 1022.6 1024.1 ****** 1978 1024.9 1024.7 1019.2 1012.3 1013.5 1009.0 1008.5 1009.2 1012.6 1021.1 1026.2 1020.9 1016.8 1979 1026.0 1020.6 1019.6 1015.3 1016.8 1011.6 1007.3 1010.8 1016.8 1018.7 1026.2 1022.2 1017.7 1980 1024.1 1025.7 1019.1 1012.7 1013.7 1009.7 1007.4 1009.4 1014.4 1019.9 1021.8 1023.2 1016.7 1981 1022.3 1020.7 1016.5 1015.6 1013.9 1011.5 1007.8 1009.7 1016.3 1022.7 1021.0 1023.6 1016.8 1982 1024.4 1023.2 1019.8 1014.8 1016.8 1010.8 1006.7 1009.6 1016.8 1020.3 1025.8 1026.5 1018.0 1983 1024.1 1021.3 1020.7 1016.1 1011.8 1010.2 1005.5 1007.6 1013.8 1021.2 1022.8 1026.6 1016.8 1984 1024.4 1030.2 1018.6 1013.7 1013.5 1009.9 1006.3 1006.2 1015.4 1022.4 1022.1 1030.9 1017.8 1985 1023.8 1014.9 1024.2 1013.8 1012.9 1007.3 ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1018.4 1022.3 1022.4 ****** 1987 1021.8 1021.5 1014.0 1015.7 1011.8 1008.4 1007.3 1007.0 1013.9 1023.6 1022.9 1021.0 1015.7 1988 1022.9 1021.6 1013.7 1014.7 1012.6 1005.2 1004.6 1007.0 1012.8 1018.9 1019.3 1018.5 1014.3 1989 1024.3 1027.1 1015.6 1016.1 1013.8 1006.9 1006.1 1006.9 1010.2 1018.0 1020.8 1019.7 1015.4 1990 1023.6 1019.7 1021.2 1013.2 1011.5 1006.0 1005.7 1007.6 1009.9 1018.8 1021.2 1024.2 1015.2 1991 1023.3 1022.7 1018.0 1014.1 1010.4 1008.4 1004.2 1006.6 1013.3 1018.8 1023.3 1019.2 1015.2 1992 1021.9 1016.7 1019.5 1013.9 1014.8 1007.1 1005.9 1011.0 1014.3 1018.0 1019.8 1020.9 1015.3 1993 1024.1 1022.2 1018.1 1013.2 1011.8 1008.2 1007.3 1009.1 1011.4 1022.7 1022.8 1024.5 1016.3 1994 1021.6 1020.7 1017.4 1015.6 1011.4 1006.8 1004.3 1005.8 1017.2 1021.0 1016.9 1022.9 1015.1 1995 1022.6 1020.9 1017.8 1012.8 1013.0 1007.0 1002.9 1005.5 1011.0 1019.9 1018.5 1024.8 1014.7 1996 1024.8 1020.6 1017.1 1015.9 1012.4 1008.5 1006.5 1006.6 1007.1 1016.8 1024.6 1021.5 1015.2 1997 1019.0 1022.1 1014.7 1010.5 1011.9 1005.1 1002.0 1004.9 1011.5 1014.6 1021.0 1019.5 1013.0 1998 1019.8 1020.4 1014.9 1011.7 1013.0 1009.5 1005.0 1008.3 1011.7 1018.8 1020.6 1024.1 1014.8 1999 1022.7 1016.6 1017.1 1015.6 1012.7 1006.8 1005.6 1006.3 1011.0 1016.6 1021.4 1024.7 1014.8 2000 1020.2 1021.3 1017.3 1011.5 1009.1 1007.6 1006.7 1007.2 1009.1 1018.2 1023.6 1020.6 1014.4 2001 1024.2 1018.4 1015.5 1011.7 1007.6 1006.8 1004.6 1006.3 1010.3 1016.2 1017.7 1020.5 1013.3 2002 1020.7 1019.7 1015.0 1010.9 1010.6 1005.8 1005.7 1003.9 1010.3 1014.4 1020.6 1022.4 1013.3 2003 1020.6 1015.7 1016.6 1014.5 1013.4 1007.0 1002.3 1006.8 1010.9 1013.1 1020.8 1022.9 1013.7 2004 1016.1 1016.6 1018.7 1013.4 1007.9 1006.1 1005.7 1004.4 1012.2 1018.7 1016.8 1021.5 1013.2 2005 1019.6 1019.2 1013.6 1015.1 1010.7 1006.0 1003.2 1005.7 1008.9 1016.7 1021.5 1022.0 1013.5 MEAN 1022.5 1020.9 1017.5 1013.9 1012.4 1007.9 1005.6 1007.4 1012.6 1018.9 1021.6 1022.7 1015.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 50 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1020.8 1013.5 1012.3 1018.3 1025.1 1036.4 1031.8 1040.2 ****** DAY-HOUR **-** **-** **-** **-** 2- 3 9-15 21- 3 20- 3 30-15 24- 6 27- 3 13- 3 1978 1039.2 1041.5 1029.8 1024.9 1028.5 1024.7 1018.6 1018.5 1025.7 1030.4 1036.9 1044.1 1044.1 DAY-HOUR 13- 3 6- 6 20- 3 12- 3 3- 3 8- 3 8- 3 21- 6 28- 3 10- 6 27- 6 24- 6 1979 1042.0 1030.3 1034.5 1033.1 1027.5 1022.9 1015.0 1020.2 1025.4 1030.7 1038.2 1035.2 1042.0 DAY-HOUR 19- 6 19- 6 5- 6 27- 6 25- 6 10-15 20- 6 29- 6 24- 6 9- 3 13- 6 22- 6 1980 1034.2 1037.5 1029.8 1026.0 1025.7 1020.5 1016.1 1023.8 1024.5 1027.0 1031.7 1036.0 1037.5 DAY-HOUR 31-15 3- 6 28- 3 1-18 16-15 1- 6 18- 6 30- 6 26- 3 30- 3 3- 6 17- 6 1981 1035.9 1030.0 1030.9 1027.2 1027.1 1020.3 1015.4 1015.6 1027.2 1033.8 1032.3 1033.6 1035.9 DAY-HOUR 9- 6 28- 6 5- 6 3- 3 21-18 10- 3 23-18 3- 3 23- 6 29- 6 16- 3 12- 6 1982 1039.1 1035.9 1031.6 1032.4 1030.5 1019.9 1017.8 1019.5 1025.7 1036.8 1039.5 1041.1 1041.1 DAY-HOUR 19- 6 11- 6 5-21 4- 3 10- 3 29- 6 8- 3 16- 3 21- 3 25- 6 19- 6 10- 3 1983 1043.4 1033.0 1030.6 1025.0 1021.0 1021.9 1016.8 1016.4 1024.5 1030.0 1041.8 1036.6 1043.4 DAY-HOUR 8- 6 23- 6 14-18 29- 6 16- 3 1- 3 1- 3 31- 6 28- 6 28- 6 26- 6 23- 6 1984 1035.3 1042.8 1029.8 1026.1 1021.6 1019.2 1013.9 1014.1 1022.5 1036.3 1036.6 1041.7 1042.8 DAY-HOUR 4-18 18-18 9-18 4-15 12- 3 15-18 3-18 31- 3 30-15 21- 6 27- 6 18-15 1985 1033.5 1031.3 1042.8 1034.3 1023.8 1016.6 ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 25- 6 24- 3 5-18 17- 3 12- 3 10- 6 **-** **-** **-** **-** **-** **-** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1029.0 1034.8 1040.3 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** 15- 6 16- 6 11- 0 1987 1038.1 1035.4 1030.4 1027.0 1021.9 1017.8 1013.7 1015.9 1027.1 1034.6 1041.3 1040.6 1041.3 DAY-HOUR 12- 3 12- 6 22-15 6- 6 1- 3 6- 9 10-15 5- 6 24- 3 28- 6 30- 6 1- 6 1988 1035.9 1039.9 1029.2 1032.2 1026.6 1013.6 1011.7 1016.4 1024.0 1029.8 1030.1 1030.4 1039.9 DAY-HOUR 3- 3 7- 3 17- 3 8-18 5- 3 1- 0 27- 6 21- 6 21-15 17- 3 6- 6 29-18 1989 1037.8 1039.6 1025.2 1023.8 1024.0 1016.1 1014.5 1017.9 1026.7 1031.9 1032.9 1027.2 1039.6 DAY-HOUR 28- 6 4- 3 8- 6 3- 3 1- 6 2- 3 10- 3 19- 3 23- 3 24- 6 8- 6 18-18 1990 1035.2 1034.3 1039.0 1026.5 1023.9 1015.3 1012.5 1014.8 1017.0 1035.2 1033.4 1039.4 1039.4 DAY-HOUR 27- 6 8- 6 17- 6 3- 6 16- 6 7- 6 31-18 29- 6 16- 6 15-18 14- 6 30-15 1991 1034.9 1037.3 1029.7 1024.9 1020.3 1016.5 1014.1 1014.0 1024.1 1025.7 1031.9 1033.7 1037.3 DAY-HOUR 1- 6 15- 6 12- 9 14-18 25- 3 17- 6 11-18 27- 6 27- 6 13- 6 24- 6 17- 6 1992 1039.4 1030.4 1033.8 1023.7 1028.4 1016.0 1016.1 1022.9 1023.9 1026.6 1034.0 1030.9 1039.4 DAY-HOUR 10- 6 16- 3 12-15 30-21 2-18 6-18 13- 3 31- 3 30- 6 30- 3 4- 3 2-18 1993 1038.4 1034.2 1031.9 1024.2 1025.9 1023.4 1014.1 1015.4 1023.8 1030.6 1034.1 1034.0 1038.4 DAY-HOUR 6-18 9- 6 16- 6 1- 6 9- 6 22-18 27- 6 24- 3 23- 3 8- 3 30- 6 6-15 1994 1035.8 1036.2 1029.0 1036.5 1022.9 1013.2 1013.7 1012.7 1025.8 1028.2 1025.6 1035.6 1036.5 DAY-HOUR 9-18 18- 6 1- 6 5- 6 18-21 5-18 14- 0 6-18 23- 6 24- 6 3- 6 8- 3 1995 1035.2 1030.3 1031.7 1025.8 1022.5 1015.3 1010.3 1013.5 1022.9 1036.7 1032.0 1036.6 1036.7 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 3 23- 6 25- 3 22- 3 17-18 15-18 10-21 1996 1040.0 1032.8 1025.0 1030.6 1020.5 1017.5 1017.0 1019.2 1018.8 1029.6 1038.5 1036.4 1040.0 DAY-HOUR 10- 6 4- 3 16- 6 5- 3 7- 6 12- 3 3- 6 30- 6 25- 6 2- 9 18- 3 7- 6 1997 1031.1 1033.4 1034.9 1022.7 1021.6 1013.9 1009.6 1012.1 1022.0 1023.9 1036.1 1031.9 1036.1 DAY-HOUR 19- 9 8- 6 11- 6 13- 6 16- 6 6-18 19- 6 28- 6 15- 3 8- 6 7- 6 28- 6 1998 1031.0 1038.6 1028.1 1024.6 1023.7 1015.7 1014.8 1014.0 1022.0 1035.0 1030.5 1034.9 1038.6 DAY-HOUR 4- 6 23- 6 26- 9 12- 6 3-15 5- 6 15- 6 19- 3 13- 3 10- 3 20-15 29- 6 1999 1043.4 1029.4 1030.8 1025.8 1021.9 1017.8 1013.8 1014.7 1020.8 1028.2 1036.2 1037.4 1043.4 DAY-HOUR 2- 6 12- 6 19- 3 23- 3 9- 6 17- 3 25-21 20- 6 29- 3 26- 3 30-18 1- 3 2000 1032.4 1033.4 1030.3 1023.4 1020.5 1019.2 1012.9 1014.7 1017.4 1027.0 1038.3 1029.9 1038.3 DAY-HOUR 15- 3 29- 6 27- 3 2- 3 5- 3 13-18 26- 3 23- 6 25-18 15-21 17- 3 4- 6 2001 1032.2 1035.0 1031.0 1028.0 1018.0 1016.8 1010.3 1013.4 1021.9 1028.6 1029.3 1030.7 1035.0 DAY-HOUR 25-21 9-18 11- 9 1-18 18-18 2- 3 29- 3 12- 3 22- 3 27- 9 20- 6 21-18 2002 1030.7 1034.9 1036.6 1023.4 1020.4 1015.4 1013.5 1013.5 1017.5 1025.9 1031.8 1038.8 1038.8 DAY-HOUR 27- 6 18-18 10-18 1- 6 16-21 25- 3 3- 6 31- 3 30- 3 23- 6 18- 6 4- 6 2003 1030.8 1030.2 1034.0 1026.8 1029.6 1019.8 1012.9 1013.0 1023.8 1021.8 1034.6 1041.6 1041.6 DAY-HOUR 23- 6 12-21 2-18 30-18 1- 6 6-18 3- 6 4- 3 27- 3 15-15 25- 6 12- 6 2004 1028.1 1023.5 1033.9 1024.8 1020.1 1017.8 1012.5 1011.2 1020.2 1028.2 1030.2 1035.3 1035.3 DAY-HOUR 1- 3 5- 6 8-18 5-18 22- 3 13- 9 6- 3 18- 6 27- 3 15- 3 29- 0 3- 6 2005 1029.6 1032.5 1025.4 1035.4 1018.8 1014.7 1009.5 1013.6 1015.4 1028.9 1031.0 1037.0 1037.0 DAY-HOUR 9-18 17- 3 26-18 6- 6 11-18 8-18 8- 6 27- 3 9- 3 23-18 27- 6 29- 3 1977-2005 1043.4 1042.8 1042.8 1036.5 1030.5 1024.7 1018.6 1023.8 1027.2 1036.8 1041.8 1044.1 1044.1 YEAR-DAY 83- 8 84-18 85- 5 94- 5 82-10 78- 8 78- 8 80-30 81-23 82-25 83-26 78-24 78-24 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 51 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1005.0 999.2 978.6 998.5 1007.7 1003.9 1011.4 1007.0 ****** DAY-HOUR **-** **-** **-** **-** 25-12 22-12 28-12 17- 9 11-12 5-12 18-12 22-12 1978 1003.9 1009.0 1001.0 997.3 1002.2 991.1 994.0 1001.9 1005.6 1009.6 1010.5 1003.2 991.1 DAY-HOUR 21-15 22- 3 13-12 25-15 30- 6 21-12 1-12 5-12 1-12 29-12 1- 3 16- 9 1979 1006.7 1007.5 1000.9 1003.8 1006.4 1002.2 997.5 1002.2 1008.1 1005.5 1003.1 1004.5 997.5 DAY-HOUR 6-12 11-15 27-15 12-12 6- 9 23-12 6-15 14-12 5-12 4-12 29-12 1-12 1980 1008.1 1010.0 997.8 999.1 1004.8 1000.6 1002.3 1001.1 1004.2 1005.6 1010.2 1005.5 997.8 DAY-HOUR 6-12 18-15 19- 6 16- 9 23-12 16-15 2-15 19-12 21- 9 4-12 10- 3 12- 6 1981 1009.1 1006.3 999.0 996.7 999.6 1000.5 1000.0 1002.0 1001.8 1012.5 1006.0 1009.2 996.7 DAY-HOUR 3-12 9-12 13- 3 30-18 1-12 16-12 1-12 13-12 8-18 16-12 13-12 18-21 1982 1008.0 1007.9 1000.9 1000.6 1004.9 1003.5 993.7 999.4 1009.0 1007.4 1011.7 1014.2 993.7 DAY-HOUR 31-21 1- 3 19- 3 18-12 15-12 11-12 30-12 4-12 13-12 20-12 6-12 28-12 1983 1000.8 1006.0 1005.4 1007.5 1005.2 1000.6 993.1 1000.5 1002.7 1005.8 1011.6 1008.8 993.1 DAY-HOUR 24-18 18- 3 5-18 23-15 3-12 21-12 27-12 28-12 8-12 4-12 12- 9 12-12 1984 1014.9 1010.4 1004.7 1002.1 1000.5 999.4 1001.0 997.8 1006.7 1003.2 1003.7 1013.6 997.8 DAY-HOUR 14-12 8-12 12-12 25- 9 28-12 21- 0 15-12 15-12 8-12 18- 9 12-12 14-12 1985 1010.5 997.8 997.6 1000.6 1005.6 999.7 ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 2-18 6- 0 24- 9 24-12 1- 9 20-12 **-** **-** **-** **-** **-** **-** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1009.4 1005.0 1005.2 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** 5- 0 9-12 30-12 1987 1006.9 1006.4 999.6 998.6 1002.2 1002.2 997.7 998.7 1001.5 1009.1 1002.5 1002.7 997.7 DAY-HOUR 27- 6 10-12 20- 0 19-18 22-18 18-15 8-12 18-15 5-12 4-12 7- 9 24- 3 1988 1008.7 1006.5 996.3 1001.3 999.5 995.0 997.0 999.3 1002.6 1006.1 1005.0 995.2 995.0 DAY-HOUR 29- 3 2-12 5- 0 23-12 28-15 15-15 15-15 29-18 5-12 30-12 20- 9 27-12 1989 1008.7 1009.3 1001.2 1006.7 1002.0 998.5 998.1 997.0 1001.6 1003.0 1009.9 1009.2 997.0 DAY-HOUR 17- 9 23- 3 27-12 29- 0 7- 0 23-15 6-15 1-15 12-12 2- 9 20- 0 5- 3 1990 1010.2 998.7 1007.8 1001.0 995.9 994.8 997.6 998.0 1001.9 1008.5 1007.1 1011.5 994.8 DAY-HOUR 23-12 16- 0 25- 0 29-12 12-12 27-12 27-15 7-12 1-12 1-12 1- 0 18- 0 1991 1010.0 1008.6 1000.4 997.0 997.4 996.2 992.2 998.6 1001.1 1010.9 1009.9 999.1 992.2 DAY-HOUR 5- 0 27-12 7- 0 5- 0 17- 0 11-15 8- 0 6- 0 7-12 4-12 5- 0 4-21 1992 1004.5 1000.8 999.0 1005.2 1002.2 997.8 999.5 1002.4 1004.6 1008.9 1004.4 1012.1 997.8 DAY-HOUR 1- 3 24-21 31- 3 15- 0 10-12 27-12 9-15 24-12 17-12 24-12 25-12 14-12 1993 1007.9 1009.5 915.8 1000.3 1004.8 1000.6 1000.9 999.3 1000.7 1005.9 1005.3 1015.4 915.8 DAY-HOUR 9- 9 3- 3 11- 3 20-18 23- 9 16-15 24-12 12-12 3-12 1-12 10-12 4-21 1994 1005.9 999.9 1000.5 1002.8 1000.9 998.5 995.4 997.7 1008.0 1011.0 1000.2 995.9 995.4 DAY-HOUR 16-12 1-12 7-18 30-21 1- 9 16- 0 20-12 2-12 1-12 14-12 26- 3 4- 0 1995 1007.8 1006.1 997.8 1003.0 1003.3 996.5 994.1 997.1 999.5 1007.6 1003.2 1014.4 994.1 DAY-HOUR 17- 9 8-18 26- 0 20- 0 7-12 30- 0 16- 0 22-12 19-12 4-12 25-21 25-12 1996 1005.1 1004.2 1003.5 1000.8 1003.7 999.7 999.7 998.2 995.4 1000.7 1015.0 1007.5 995.4 DAY-HOUR 6-21 1-21 26- 0 13- 3 29-12 1-12 7-12 8-12 9- 0 27- 9 6-12 30- 0 1997 1004.2 1008.2 998.7 995.8 997.2 998.9 996.2 996.0 997.0 1005.2 1007.8 1004.3 995.8 DAY-HOUR 16- 3 22-12 25-21 9-21 4-15 30-12 11-15 14-12 2- 9 7- 0 5-12 9-21 1998 1002.6 1003.1 993.9 999.3 998.5 1002.9 992.0 1002.0 1001.6 1002.5 1008.9 1011.7 992.0 DAY-HOUR 13-12 8- 3 30- 6 21-12 22- 3 24-15 5-12 23-12 5-12 1-12 1-12 21- 9 1999 1007.9 996.5 1005.7 1002.1 1000.4 993.4 999.5 999.9 999.8 1008.5 1009.0 1010.1 993.4 DAY-HOUR 9-15 21- 0 21-12 14-12 14- 6 25-12 4-12 6-12 15-12 18-12 25- 9 14-12 2000 1003.7 1007.4 1001.5 1001.1 998.5 1000.2 998.2 997.1 997.9 1008.9 1015.0 1010.8 997.1 DAY-HOUR 21- 0 7- 0 24-21 10-12 27- 0 8-15 8-12 3-12 1-12 1- 0 6-12 21- 9 2001 1015.7 995.4 999.2 998.4 997.7 1000.0 995.7 996.6 1001.0 1005.9 1002.7 1007.4 995.4 DAY-HOUR 1- 0 21-15 24-12 12-21 8-12 26- 0 10-12 31-12 5- 0 25- 0 17-15 20-12 2002 1002.5 1002.4 997.5 995.1 1001.0 994.1 996.6 994.8 1002.7 1007.2 1006.3 1001.1 994.1 DAY-HOUR 8- 0 27- 0 29- 0 3-18 29-21 20- 0 24-12 17-12 11-12 22- 0 12-12 21-21 2003 1000.7 1000.2 998.0 1003.2 1003.5 998.6 994.7 1002.1 1000.6 1001.4 1009.4 1008.2 994.7 DAY-HOUR 28-21 19-12 26-15 26-21 23-12 18- 9 7-15 6-12 18-12 27- 9 2-12 7- 0 2004 1003.3 994.1 1002.1 998.7 994.1 997.3 999.1 993.5 1002.5 1007.2 999.0 1009.0 993.5 DAY-HOUR 14- 9 15-15 31- 0 24- 0 13- 9 17-15 23-12 12-12 10-12 22- 9 23-18 10- 0 2005 999.4 1003.2 1002.3 1002.3 998.5 991.8 992.1 996.0 1002.0 1003.0 1010.3 1003.5 991.8 DAY-HOUR 23- 9 2- 0 24- 0 27- 9 4-12 20-15 6-15 8-12 4-12 20-21 6- 0 24- 0 1977-2005 999.4 994.1 915.8 995.1 994.1 991.1 978.6 993.5 995.4 1000.7 999.0 995.2 915.8 YEAR-DAY 5-23 4-15 93-11 2- 3 4-13 78-21 77-28 4-12 96- 9 96-27 4-23 88-27 93-11 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 52 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF COMPUTED QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1017.8 1020.0 ****** 1023.4 ****** 1980 1025.5 ****** 1020.2 1013.9 1014.7 1010.6 1008.3 1010.4 1015.6 1021.1 1023.1 1024.7 ****** 1981 1023.7 ****** 1017.9 1016.7 1015.0 1012.4 1008.6 1010.7 1016.8 1023.4 1021.7 1024.4 ****** 1982 1023.2 ****** ****** ****** 1017.4 1011.6 1007.4 ****** ****** ****** ****** 1028.3 ****** 1983 1025.6 ****** 1022.1 1017.4 1012.9 1011.1 ****** ****** 1015.0 1021.8 1023.3 1028.2 ****** 1984 1026.0 1031.3 1019.8 1014.5 1014.6 1010.4 1007.0 1006.9 1016.2 1023.1 1022.9 1031.6 1018.7 1985 1024.7 1016.1 1025.2 1014.6 1013.7 1007.7 1004.9 1008.8 1010.7 1017.6 1020.7 1020.8 1015.5 1986 1021.3 1017.9 1021.5 1015.3 1010.2 1005.0 1006.2 1008.7 1013.3 ****** 1022.9 1022.6 ****** 1987 1021.1 ****** 1012.9 1014.5 1010.0 1007.1 ****** ****** ****** ****** ****** ****** ****** 1988 1021.9 1020.5 1012.7 1013.1 1011.4 1004.0 1003.2 1005.8 1011.5 1017.8 1018.2 1017.6 1013.1 1989 1023.8 1026.1 1014.3 1014.7 1012.6 1005.8 ****** ****** 1008.0 ****** 1019.7 1018.6 ****** 1990 1022.6 1018.7 1020.1 1012.1 1010.4 1004.7 1004.3 1006.3 1008.7 1017.6 1020.1 1023.2 1014.1 1991 1022.2 1021.7 1016.9 1012.9 1009.2 1007.1 1003.0 1005.4 1011.8 1017.4 1021.9 1018.2 1014.0 1992 1020.8 1015.8 1018.4 1012.7 1013.4 1005.6 1004.4 1009.5 1013.0 1016.7 1018.6 1019.7 1014.1 1993 1023.0 1021.1 1017.4 1012.0 1010.4 1006.8 1005.9 1007.7 1010.0 1021.4 1021.5 1023.2 1015.1 1994 1020.5 1019.7 1016.2 1014.4 1010.1 1005.6 1002.9 1004.3 1015.9 1019.6 1015.7 1021.8 1013.9 1995 1021.5 1019.8 1016.7 1011.6 1011.8 1005.8 1001.6 1004.2 1009.7 1018.6 1017.4 1023.6 1013.5 1996 1023.7 1019.5 1016.0 1014.6 1011.1 1007.1 1005.8 1006.6 1007.0 1016.6 1024.6 1021.4 1014.5 1997 1019.0 1022.1 1014.6 1010.4 1011.8 1005.1 1001.9 1004.8 1011.4 1014.5 1020.9 1019.5 1013.0 1998 1019.7 1020.3 1014.8 1011.6 1011.6 1008.1 1003.7 1006.8 1010.3 1017.5 1019.3 1022.8 1013.9 1999 1021.6 1015.6 1015.9 1014.3 1011.4 1005.5 1004.3 1005.0 1009.6 1015.3 1020.1 1023.4 1013.5 2000 1019.2 1020.2 1016.2 1010.4 1007.9 1006.4 1005.4 1006.1 1009.0 1018.1 1023.6 1020.6 1013.6 2001 1024.2 1018.4 1015.5 1011.6 1007.3 1005.2 1004.6 1006.2 1010.1 1016.1 1017.7 1020.5 1013.1 2002 1020.7 1019.7 1015.0 1010.9 1010.6 1005.7 1005.6 1003.8 1010.3 1014.3 1020.5 1022.4 1013.3 2003 1020.6 1015.7 1016.5 1014.5 1013.3 1007.0 1002.3 1006.8 1010.8 1013.1 1020.8 1022.9 1013.7 2004 1016.0 1016.5 1018.7 1013.4 1007.9 1006.0 1005.7 1004.4 1012.2 1018.6 1016.7 1021.5 1013.1 2005 1019.6 1019.2 1013.5 1015.1 1010.7 1006.0 1003.2 1005.7 1008.9 1016.7 1021.5 1022.0 1013.5 MEAN 1022.0 1019.8 1017.2 1013.5 1011.6 1007.1 1004.8 1006.6 1011.7 1018.1 1020.6 1022.6 1014.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 53 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF COMPUTED QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1025.9 1031.3 ****** 1036.3 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 24- 6 9- 3 **-** 22- 6 1980 1035.3 ****** 1030.4 1027.1 1026.1 1021.0 1016.2 1024.1 1024.9 1027.2 1032.0 1036.8 ****** DAY-HOUR 31-15 **-** 15- 6 2- 3 16-15 1- 6 18- 6 30- 6 26- 3 22- 3 3- 6 17- 6 1981 1036.8 ****** 1032.0 1028.4 1027.4 1020.7 1015.7 1017.5 1027.2 1034.0 1033.1 1034.3 ****** DAY-HOUR 9- 6 **-** 5- 6 3- 3 21-18 10- 3 30- 3 24- 3 23-18 29- 6 16- 3 12- 6 1982 1040.3 ****** ****** ****** 1030.7 1019.3 1018.0 ****** ****** ****** ****** 1042.3 ****** DAY-HOUR 21-18 **-** **-** **-** 10- 3 7- 3 8- 3 **-** **-** **-** **-** 10- 3 1983 1044.4 ****** 1031.2 1025.5 1021.4 1022.2 ****** ****** 1023.2 1030.6 1042.4 1037.6 ****** DAY-HOUR 8- 6 **-** 14-18 29- 6 31-18 1- 3 **-** **-** 28- 6 28- 6 26- 6 23- 6 1984 1036.1 1043.4 1030.5 1026.9 1022.0 1019.5 1014.1 1014.5 1023.1 1036.8 1037.5 1042.2 1043.4 DAY-HOUR 4-18 18-18 9-18 4-15 12- 3 15-18 3-18 31- 3 30-15 21- 6 30-18 18-18 1985 1034.6 1033.5 1043.9 1035.0 1024.4 1016.8 1012.3 1015.2 1022.5 1030.3 1029.7 1034.5 1043.9 DAY-HOUR 25- 6 24- 6 5- 6 17- 3 12- 3 10- 6 29- 6 30- 3 22- 6 31-18 1- 3 8-15 1986 1036.7 1027.1 1033.1 1026.7 1021.9 1013.5 1012.8 1014.2 1020.2 ****** 1033.5 1037.0 ****** DAY-HOUR 28-15 13- 6 3- 6 5- 3 18- 6 2-18 21-18 31-18 30- 6 **-** 16- 6 11- 6 1987 1034.1 ****** 1029.2 1025.7 1020.5 1015.9 ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 21- 6 **-** 22-18 6- 6 1- 3 6- 6 **-** **-** **-** **-** **-** **-** 1988 1034.5 1038.7 1027.7 1030.7 1023.9 1012.3 1010.0 1014.4 1020.9 1028.4 1028.2 1029.4 1038.7 DAY-HOUR 3- 3 7- 6 17- 6 8-18 4-18 1- 0 27- 6 21- 6 25- 3 17- 3 6- 6 29-18 1989 1036.6 1039.0 1023.8 1022.4 1022.8 1014.7 ****** ****** 1025.1 ****** 1031.6 1025.8 ****** DAY-HOUR 28- 6 4- 3 8- 6 3- 3 1- 6 2- 3 **-** **-** 23- 3 **-** 8- 6 18-18 1990 1033.9 1033.0 1037.8 1024.7 1022.2 1014.2 1010.7 1013.0 1015.2 1033.9 1031.9 1038.7 1038.7 DAY-HOUR 27- 6 7- 6 17- 6 3- 6 16- 6 7- 6 31-18 29- 6 27-15 15-18 14- 6 30-15 1991 1033.8 1036.2 1028.1 1023.5 1018.8 1014.5 1012.5 1012.7 1022.6 1024.2 1030.6 1032.3 1036.2 DAY-HOUR 1- 6 15- 6 12- 6 14-18 25- 3 17-18 11- 6 22- 6 27- 6 13- 6 24- 6 17- 6 1992 1038.2 1029.3 1033.0 1022.3 1026.9 1014.4 1014.4 1021.4 1022.2 1025.0 1032.5 1029.5 1038.2 DAY-HOUR 10- 6 16- 3 13- 3 30-21 2-18 6-18 13- 3 31- 3 30- 6 17- 3 4- 3 2-18 1993 1037.5 1033.1 1030.5 1022.7 1024.4 1021.8 1012.1 1013.7 1021.9 1029.8 1032.9 1032.3 1037.5 DAY-HOUR 6- 6 17- 6 16- 6 1- 6 9- 6 22-18 27- 6 24- 3 23- 3 8- 3 30- 6 6-18 1994 1034.5 1034.7 1027.2 1035.2 1021.2 1011.8 1009.9 1010.8 1024.3 1026.6 1024.1 1034.5 1035.2 DAY-HOUR 9-18 18- 6 1- 6 5- 6 18-18 5-18 2- 3 6-18 23- 6 24- 6 3- 6 8- 3 1995 1033.9 1028.9 1030.4 1024.3 1021.0 1014.1 1008.8 1011.9 1021.2 1034.7 1030.7 1035.4 1035.4 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 6 23- 6 25- 3 22- 3 17-18 15-18 11- 6 1996 1039.0 1032.3 1023.8 1029.4 1018.8 1015.9 1015.0 1019.2 1018.8 1028.4 1038.6 1036.2 1039.0 DAY-HOUR 10- 6 4- 6 17- 6 5- 3 7- 6 12- 3 3- 6 30- 6 25- 3 2- 3 18-18 7- 6 1997 1031.8 1033.5 1034.8 1022.3 1021.4 1013.9 1009.6 1012.1 1020.7 1023.7 1035.8 1031.8 1035.8 DAY-HOUR 19- 6 8- 6 11- 3 13- 6 16- 6 6-18 19- 6 21- 6 15- 6 9- 3 8- 6 28- 6 1998 1030.4 1038.3 1028.0 1024.5 1023.2 1014.2 1013.1 1013.0 1020.7 1033.7 1028.8 1033.3 1038.3 DAY-HOUR 4- 6 23- 6 26- 6 12- 6 3- 3 6- 6 15- 9 25- 3 13- 3 10- 3 20-15 29- 6 1999 1042.3 1028.1 1029.8 1024.4 1020.3 1016.2 1011.6 1013.1 1019.4 1026.8 1034.9 1036.2 1042.3 DAY-HOUR 2- 6 12- 6 19- 3 23- 3 9- 6 17- 3 13- 6 20- 6 29- 3 26- 3 30-18 1- 3 2000 1032.0 1032.0 1029.0 1022.0 1018.9 1017.7 1011.8 1012.5 1017.4 1027.0 1038.2 1029.9 1038.2 DAY-HOUR 31- 6 29- 6 27- 3 2- 3 5- 3 13-18 26- 6 23- 6 25-18 15-21 17- 3 4- 6 2001 1032.2 1034.9 1031.0 1027.9 1017.8 1016.8 1010.2 1013.3 1021.8 1028.6 1029.3 1030.8 1034.9 DAY-HOUR 25-21 9-18 11- 9 1-18 18-18 2- 3 29- 3 12- 3 22- 6 27- 9 20- 6 21-18 2002 1031.1 1034.4 1036.3 1023.3 1020.4 1015.5 1013.0 1013.5 1017.4 1022.8 1031.9 1038.9 1038.9 DAY-HOUR 27-15 19- 0 10-18 1- 6 17- 6 25- 3 3- 6 31- 3 30- 3 23- 6 18- 6 4- 6 2003 1030.8 1030.2 1034.1 1026.8 1029.6 1019.9 1012.9 1013.0 1023.7 1021.7 1034.6 1041.6 1041.6 DAY-HOUR 23- 6 12-21 2-18 30-18 1- 6 6-18 3- 6 4- 3 27- 3 15-15 25- 6 12- 3 2004 1028.1 1023.5 1033.8 1024.7 1020.1 1017.8 1012.5 1011.2 1020.2 1028.3 1030.3 1035.3 1035.3 DAY-HOUR 1- 6 5- 6 9- 3 5-18 22- 3 13- 9 6- 3 18- 6 27- 3 15- 3 29- 0 3- 6 2005 1029.6 1032.5 1025.2 1035.4 1018.9 1014.7 1009.5 1013.6 1015.3 1028.9 1030.9 1036.9 1036.9 DAY-HOUR 9-18 17- 3 26-18 6- 6 11-18 8-18 8- 6 27- 3 9- 3 23-18 27- 6 29- 3 1977-2005 1044.4 1043.4 1043.9 1035.4 1030.7 1022.2 1018.0 1024.1 1027.2 1036.8 1042.4 1042.3 1044.4 YEAR-DAY 83- 8 84-18 85- 5 5- 6 82-10 83- 1 82- 8 80-30 81-23 84-21 83-26 82-10 83- 8 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 54 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF COMPUTED QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1009.0 1008.2 ****** 1008.4 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 5-15 4-18 **-** 1- 3 1980 1009.6 ****** 998.7 1000.9 1005.9 1001.3 1002.8 1002.3 1007.9 1007.0 1011.0 1006.7 ****** DAY-HOUR 6-15 **-** 19- 6 16- 6 23-18 16-15 30-18 19-15 6-15 4-15 10- 3 12- 6 1981 1011.6 ****** 1000.3 999.7 1000.2 1002.2 997.9 1003.5 1006.5 1013.1 1007.0 1010.1 ****** DAY-HOUR 3-15 **-** 13- 3 30-18 1- 3 4-15 6- 6 13-15 19-12 16-12 13-12 19- 0 1982 1008.9 ****** ****** ****** 1006.7 1004.8 997.4 ****** ****** ****** ****** 1017.2 ****** DAY-HOUR 31-21 **-** **-** **-** 15-12 11-21 30-15 **-** **-** **-** **-** 28- 3 1983 1001.6 ****** 1006.3 1007.9 1006.8 1003.7 ****** ****** 1006.6 1006.2 1012.5 1009.5 ****** DAY-HOUR 24-18 **-** 5-18 23-15 4-18 21-15 **-** **-** 8-15 4-12 12- 9 12- 3 1984 1017.3 1011.3 1006.6 1003.7 1002.0 1000.2 1001.9 998.4 1007.2 1004.8 1004.9 1016.4 998.4 DAY-HOUR 9- 3 8-18 12-15 10- 6 28-15 21- 0 29-12 15-12 8-12 18-12 12-12 14-18 1985 1011.4 999.0 1001.0 1001.6 1006.3 1000.5 997.7 1001.9 1001.8 1007.5 1012.5 996.9 996.9 DAY-HOUR 2-18 6- 0 24- 6 24-12 4-12 20-12 19-15 8-12 7-12 11- 0 10-12 19- 6 1986 1004.1 1007.6 1012.4 1005.8 1000.1 997.3 1000.5 1001.7 1007.2 ****** 1004.5 1005.3 ****** DAY-HOUR 20- 0 6-18 10- 0 11- 3 3-12 17-12 26-12 15-12 6-12 **-** 9- 3 30-15 1987 1005.9 ****** 998.5 997.4 1001.0 1001.3 ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 27- 6 **-** 20- 0 19-18 22-18 18-15 **-** **-** **-** **-** **-** **-** 1988 1006.6 1005.5 995.3 1000.4 998.3 993.9 996.0 998.3 1001.6 1005.1 1004.5 994.5 993.9 DAY-HOUR 29- 0 2-12 5- 0 23-12 28-15 15-15 15-15 29-18 5-12 30-12 20- 3 27-12 1989 1009.6 1008.4 999.7 1005.6 1001.1 997.8 ****** ****** 1000.4 ****** 1008.9 1008.1 ****** DAY-HOUR 17- 3 23- 3 28-12 29- 0 7- 0 10-15 **-** **-** 12-12 **-** 20- 0 5- 3 1990 1009.1 997.9 1008.5 1000.1 995.1 993.6 995.3 997.0 1000.6 1007.2 1006.1 1010.6 993.6 DAY-HOUR 23-12 16- 0 14-12 29-12 12-12 27-12 27-15 7-12 1-12 1-12 1- 0 18- 0 1991 1009.2 1007.6 999.3 995.9 996.4 995.3 991.1 997.4 1000.2 1009.9 1008.9 1004.0 991.1 DAY-HOUR 5- 0 27-12 7- 0 5- 0 17- 0 11-15 8- 0 6- 0 7-12 4-12 5- 0 1-12 1992 1003.7 1000.0 998.1 1004.0 1001.2 996.6 998.5 1001.3 1003.6 1008.1 1003.8 1011.1 996.6 DAY-HOUR 3- 0 24-21 31- 3 15- 0 10-12 27-12 23-12 1-12 25-12 24-12 25-12 14-12 1993 1007.0 1008.0 1001.7 999.2 1003.4 999.6 999.7 998.5 999.8 1005.0 1004.4 1014.5 998.5 DAY-HOUR 9- 9 3- 0 22- 0 20-21 23- 9 16-15 1-15 12-12 3-12 1-12 10-12 4-21 1994 1005.1 996.6 999.8 1002.0 999.8 997.5 994.6 996.4 1006.9 1010.2 999.1 994.9 994.6 DAY-HOUR 16-12 1-12 7-18 30-21 1- 9 16- 0 20-12 2-12 1- 0 14-12 26- 3 4- 0 1995 1006.9 1005.2 996.2 1002.1 1002.2 995.4 992.8 996.2 998.2 1006.5 1002.3 1013.5 992.8 DAY-HOUR 17- 9 8-18 26- 0 20- 0 7-12 30-12 16- 0 22-12 19-12 4-12 25-21 25-12 1996 1004.3 1003.9 1002.5 1000.0 1002.6 998.5 999.0 998.0 995.6 1000.7 1014.9 1007.5 995.6 DAY-HOUR 6-21 10- 0 26- 0 13-12 29-15 1-15 7-12 8-12 9- 0 27- 9 6-12 30- 0 1997 1004.3 1008.1 998.7 995.9 997.1 998.9 996.2 995.9 997.0 1005.4 1007.8 1004.8 995.9 DAY-HOUR 16- 3 22-12 25- 9 9-21 4-15 30-12 11-15 14-12 2- 9 7- 0 5-12 10- 0 1998 1002.5 1003.1 993.9 999.0 997.3 1002.1 991.1 1001.1 1000.2 1001.5 1008.0 1010.8 991.1 DAY-HOUR 13-12 8- 3 30- 6 21-12 22- 3 24-15 5-12 22-12 5-12 1-12 1-12 21- 0 1999 1007.1 995.2 1004.6 1001.4 999.2 992.4 998.4 999.1 998.8 1007.6 1007.8 1009.1 992.4 DAY-HOUR 9-15 21- 0 21-12 14-12 14- 6 25-12 22-15 6-12 16-12 18-12 25-12 14-12 2000 1002.9 1006.5 1000.5 1000.3 997.7 999.5 997.7 996.2 997.5 1008.9 1014.7 1010.7 996.2 DAY-HOUR 21- 0 7- 0 24-21 10-12 27- 0 26-12 8-12 3-15 1-12 1- 0 6-12 21- 9 2001 1015.8 993.5 999.0 998.5 997.0 992.9 995.7 996.4 1000.8 1005.9 1002.7 1007.0 992.9 DAY-HOUR 1- 0 21-12 25-12 12-21 9-12 6-15 10-12 30-12 5- 0 25- 0 17-15 20-12 2002 1002.5 1002.5 997.8 995.1 1001.0 994.4 996.2 994.7 1002.6 1007.0 1006.3 1001.1 994.4 DAY-HOUR 8- 0 27- 0 29- 0 3-18 29-21 20- 0 24-12 17-12 11-12 22- 0 12-12 21-21 2003 1000.7 1000.5 998.0 1003.2 1003.5 998.6 994.6 1002.0 1000.7 1001.4 1009.4 1008.2 994.6 DAY-HOUR 28-21 20-18 26-15 26-21 23-12 18- 9 7-15 6-15 18-12 27- 9 2-12 7- 0 2004 1003.2 994.1 1002.1 998.5 994.1 997.2 999.1 993.4 1002.4 1007.2 999.0 1009.1 993.4 DAY-HOUR 14-12 15-15 31- 0 24- 0 13- 9 17-15 23-12 12-15 10-12 22- 9 23-18 10- 0 2005 999.4 1003.2 1002.3 1002.3 998.5 991.8 992.1 996.0 1001.9 1003.0 1010.3 1003.5 991.8 DAY-HOUR 23- 9 2- 0 24- 0 27-12 4-12 20-15 6-15 8-12 4-12 20-21 6- 0 24- 0 1977-2005 999.4 993.5 993.9 995.1 994.1 991.8 991.1 993.4 995.6 1000.7 999.0 994.5 991.1 YEAR-DAY 5-23 1-21 98-30 2- 3 4-13 5-20 98- 5 4-12 96- 9 96-27 4-23 88-27 98- 5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 55 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFE PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 897.4 900.0 896.8 897.0 ****** 1982 894.5 894.5 894.1 894.3 897.4 894.6 ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 898.8 898.3 ****** ****** 1984 ****** ****** ****** ****** 894.3 892.6 891.2 890.8 896.6 899.4 897.8 900.6 ****** 1985 895.9 889.8 897.7 893.0 894.2 891.3 888.7 890.8 891.9 894.3 895.7 893.0 893.0 1986 892.6 891.1 893.5 892.3 890.4 887.5 889.6 891.0 893.9 ****** 897.6 ****** ****** 1987 894.0 ****** 887.0 891.1 890.5 889.4 ****** ****** ****** ****** ****** ****** ****** 1988 892.7 892.3 887.9 891.3 890.9 887.4 887.3 888.6 892.2 895.2 893.9 891.3 890.9 1989 893.1 894.6 889.1 892.3 892.1 888.9 ****** ****** 888.8 ****** 894.5 892.0 ****** 1990 893.5 890.7 893.9 889.2 890.8 888.1 888.3 889.9 891.0 895.1 895.1 894.3 891.7 1991 893.1 893.4 891.1 890.9 888.2 889.1 887.0 888.7 892.8 895.2 896.4 891.5 891.5 1992 891.6 888.6 891.0 889.2 891.6 888.1 888.4 891.2 893.3 894.1 894.4 892.8 891.2 1993 893.2 892.6 891.0 890.0 890.3 888.9 889.4 890.5 891.9 897.8 894.8 895.5 892.2 1994 892.8 891.1 891.0 892.1 890.2 887.7 887.1 888.1 895.1 896.5 892.1 893.7 891.5 1995 893.9 892.7 891.3 889.6 892.0 888.5 886.0 888.2 891.0 895.3 893.1 895.4 891.4 1996 894.9 891.6 889.9 891.2 891.4 889.6 889.8 889.8 889.3 894.2 898.1 894.8 892.1 1997 891.9 892.5 888.4 888.8 891.5 888.0 886.6 888.8 892.6 893.2 895.5 892.7 890.9 1998 890.9 891.8 889.5 890.2 891.6 890.9 887.7 890.3 891.7 895.3 895.3 897.0 891.8 1999 893.6 890.0 890.4 891.6 891.2 888.6 887.8 888.9 891.1 893.7 894.3 896.8 891.5 2000 891.8 892.0 890.7 890.1 889.5 889.0 889.1 889.7 890.9 895.4 897.2 894.1 891.6 2001 895.6 891.4 891.1 890.6 888.9 888.2 888.5 890.0 891.5 894.3 893.2 894.4 891.5 2002 893.3 892.1 890.6 888.4 890.0 888.2 889.0 888.1 892.2 894.0 895.7 893.3 891.2 2003 892.5 889.0 890.5 891.1 892.3 888.9 886.5 890.0 891.9 892.6 894.9 895.3 891.3 2004 889.7 890.7 893.6 890.3 888.6 888.9 888.9 888.1 893.3 896.1 893.0 893.5 891.2 2005 891.8 891.3 889.2 892.7 890.8 888.9 888.0 888.9 891.3 895.3 895.9 895.4 891.6 MEAN 893.0 891.6 891.0 890.9 891.3 889.2 888.2 889.5 892.3 895.5 895.4 894.5 891.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 56 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFE PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 902.7 906.3 904.6 903.8 ****** DAY ** ** ** ** ** ** ** ** 27 29 16 2 1982 900.0 902.7 900.8 903.8 906.4 899.7 ****** ****** ****** ****** ****** ****** ****** DAY 23 11 5 4 10 7 ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 904.7 909.2 ****** ****** DAY ** ** ** ** ** ** ** ** ** 29 5 ** 1984 ****** ****** ****** ****** 898.5 897.1 896.3 894.4 900.6 907.7 906.4 908.8 ****** DAY ** ** ** ** 17 13 4 4 22 22 27 19 1985 902.0 899.9 910.1 906.7 901.5 896.9 892.4 894.4 899.4 900.1 902.3 901.2 910.1 DAY 28 24 6 17 13 10 16 25 22 7 1 9 1986 900.9 896.7 899.8 901.1 897.5 893.2 892.9 893.0 897.4 ****** 902.9 ****** ****** DAY 29 22 3 5 19 3 2 25 22 ** 16 ** 1987 904.0 ****** 898.3 897.1 897.3 893.8 ****** ****** ****** ****** ****** ****** ****** DAY 21 ** 23 22 1 6 ** ** ** ** ** ** 1988 901.8 902.2 898.1 901.1 898.1 892.9 890.8 893.8 897.2 902.2 902.6 898.8 902.6 DAY 3 7 17 9 5 1 31 21 25 17 6 22 1989 903.3 902.2 895.0 896.4 896.9 892.7 ****** ****** 893.4 ****** 900.5 895.9 ****** DAY 22 4 8 5 21 2 ** ** 16 ** 8 28 1990 901.0 900.8 904.5 895.9 897.9 893.5 892.0 893.3 895.6 904.6 903.6 902.0 904.6 DAY 27 8 17 24 16 5 17 29 16 16 14 29 1991 900.5 901.3 896.8 898.1 893.4 894.7 891.8 891.9 898.5 899.1 900.0 901.3 901.3 DAY 11 15 12 29 25 18 12 27 16 13 23 17 1992 903.0 896.8 898.9 894.0 897.9 893.8 893.4 897.2 898.2 899.1 904.4 899.5 904.4 DAY 10 16 13 8 3 7 13 31 30 30 4 3 1993 903.6 900.9 898.7 898.0 897.3 897.9 894.0 895.2 899.4 902.9 902.6 900.7 903.6 DAY 6 10 17 1 9 23 28 29 23 20 22 27 1994 903.1 902.3 898.1 902.2 896.4 891.0 890.6 891.8 901.0 901.4 898.4 902.1 903.1 DAY 10 18 1 5 19 9 2 8 23 24 3 22 1995 903.0 897.8 899.7 896.1 896.1 893.6 890.0 893.4 897.2 904.8 902.1 902.7 904.8 DAY 7 12 3 7 26 1 4 25 22 18 16 11 1996 904.9 897.7 894.0 899.8 895.8 894.7 895.6 897.7 896.0 903.5 906.7 902.8 906.7 DAY 10 13 16 5 7 12 4 30 25 2 19 8 1997 901.1 898.6 902.3 894.6 897.7 892.1 891.2 892.9 897.8 899.2 906.4 899.9 906.4 DAY 24 8 11 14 12 8 20 22 7 9 8 29 1998 899.2 904.7 897.8 899.3 898.2 894.7 893.5 893.4 896.7 904.9 903.0 902.8 904.9 DAY 4 23 27 12 10 6 20 19 13 10 21 12 1999 906.2 898.7 897.5 898.2 895.3 896.2 891.8 895.1 895.7 898.9 901.0 904.7 906.2 DAY 2 12 19 23 2 17 19 20 5 26 30 1 2000 899.8 900.2 901.0 895.7 896.5 894.5 893.8 893.3 895.6 900.4 906.8 900.4 906.8 DAY 31 29 27 2 5 16 31 9 29 16 17 10 2001 900.2 903.7 901.0 900.2 894.3 895.2 891.4 895.0 897.6 902.2 898.7 900.5 903.7 DAY 26 10 2 2 19 2 29 5 20 11 20 10 2002 900.0 903.1 903.3 896.2 896.7 895.6 893.4 894.7 897.1 898.4 903.0 904.9 904.9 DAY 26 19 11 1 17 25 3 31 21 11 18 3 2003 898.7 898.2 900.4 896.8 900.1 894.3 892.9 893.0 899.1 898.2 903.7 906.9 906.9 DAY 11 13 3 30 2 7 4 4 27 16 26 12 2004 897.2 895.3 904.6 897.7 895.9 895.9 893.6 891.8 897.8 902.4 899.6 902.4 904.6 DAY 1 13 9 11 22 6 6 18 21 15 29 4 2005 899.7 900.1 894.6 904.1 896.7 892.9 891.6 893.7 895.2 901.5 901.3 904.9 904.9 DAY 8 17 16 6 19 9 9 27 9 24 24 29 1977-2005 906.2 904.7 910.1 906.7 906.4 899.7 896.3 897.7 902.7 907.7 909.2 908.8 910.1 YEAR-DAY 99- 2 98-23 85- 6 85-17 82-10 82- 7 84- 4 96-30 81-27 84-22 83- 5 84-19 85- 6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 57 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFE PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 892.9 894.6 890.4 888.7 ****** DAY ** ** ** ** ** ** ** ** 12 16 4 19 1982 884.7 885.0 884.1 885.9 890.9 890.0 ****** ****** ****** ****** ****** ****** ****** DAY 29 1 3 19 15 15 ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 892.0 891.7 ****** ****** DAY ** ** ** ** ** ** ** ** ** 5 13 ** 1984 ****** ****** ****** ****** 888.6 884.9 888.2 887.1 891.9 889.2 889.3 892.2 ****** DAY ** ** ** ** 1 21 29 16 8 18 13 7 1985 887.3 878.6 883.9 887.7 889.3 885.7 883.7 886.4 886.3 888.1 891.4 877.0 877.0 DAY 19 6 24 3 1 21 20 8 7 11 8 19 1986 880.2 885.9 886.0 886.3 883.5 883.5 886.6 887.4 890.3 ****** 890.2 ****** ****** DAY 20 16 10 11 3 13 10 15 26 ** 30 ** 1987 884.5 ****** 877.8 880.9 884.7 886.9 ****** ****** ****** ****** ****** ****** ****** DAY 3 ** 20 20 23 19 ** ** ** ** ** ** 1988 882.9 883.9 875.6 886.0 883.7 880.6 884.1 882.9 887.0 886.0 885.2 877.6 875.6 DAY 29 2 5 15 1 24 1 30 5 31 20 26 1989 885.5 883.7 878.2 887.9 883.7 883.5 ****** ****** 884.8 ****** 887.5 884.2 ****** DAY 3 23 30 29 7 11 ** ** 14 ** 25 5 1990 885.2 875.9 887.4 881.9 880.6 881.7 884.6 885.7 886.8 889.5 885.3 887.6 875.9 DAY 18 16 25 16 13 27 28 7 1 26 1 18 1991 883.5 884.6 877.5 878.4 880.0 882.7 878.8 883.6 886.2 891.2 888.7 883.3 877.5 DAY 5 4 7 5 23 12 8 6 20 5 5 26 1992 880.2 881.6 878.9 884.4 886.2 883.1 883.9 886.3 888.9 889.4 885.1 888.1 878.9 DAY 3 25 31 10 19 28 10 19 18 25 26 28 1993 881.9 885.8 879.7 884.5 886.5 884.9 884.9 885.0 885.4 890.3 882.9 888.2 879.7 DAY 9 3 22 12 14 17 25 13 14 1 14 5 1994 882.5 882.9 883.8 882.6 882.0 882.1 882.9 883.1 890.7 889.6 880.1 875.5 875.5 DAY 17 9 13 2 1 16 31 2 1 15 26 4 1995 886.3 885.5 878.3 884.5 887.5 881.1 880.8 883.1 886.2 888.5 880.0 889.8 878.3 DAY 12 9 26 20 7 30 16 23 20 4 26 22 1996 884.0 882.1 882.5 883.5 887.3 885.2 885.7 884.8 881.9 885.0 891.9 885.8 881.9 DAY 7 10 26 13 30 19 7 8 9 27 29 25 1997 883.7 884.1 879.4 878.6 880.6 884.9 882.3 883.3 883.7 888.2 889.2 883.0 878.6 DAY 16 1 26 10 5 30 16 15 2 7 5 10 1998 881.1 877.6 877.3 883.1 881.9 887.7 878.0 887.1 887.0 885.7 889.0 886.6 877.3 DAY 13 14 19 21 22 24 6 13 3 2 11 21 1999 886.4 876.0 884.0 883.4 886.1 878.8 883.7 885.7 886.2 889.8 887.5 888.5 876.0 DAY 10 21 22 14 20 25 22 7 13 13 26 16 2000 880.0 882.0 881.9 886.1 883.1 884.9 883.6 884.5 885.1 890.0 891.8 885.9 880.0 DAY 21 7 25 22 27 6 11 31 1 1 22 16 2001 890.6 879.0 881.9 883.0 881.4 880.5 882.9 883.6 885.9 886.9 883.6 888.1 879.0 DAY 1 22 25 13 9 7 19 31 5 25 18 6 2002 882.8 881.7 880.0 877.0 885.8 880.0 882.0 881.8 887.7 887.8 887.2 879.4 877.0 DAY 8 27 29 4 30 20 25 17 11 22 12 22 2003 877.8 878.1 880.2 885.8 886.1 884.3 882.4 886.8 884.5 885.9 887.9 886.0 877.8 DAY 29 19 27 27 30 27 8 1 7 26 21 7 2004 881.2 880.6 884.1 881.1 880.6 884.4 883.9 881.8 887.3 889.1 883.0 884.1 880.6 DAY 24 16 31 17 13 10 11 13 11 22 28 10 2005 881.6 881.0 881.1 886.5 881.6 879.8 880.5 883.5 886.0 887.1 888.2 882.7 879.8 DAY 24 2 24 30 6 21 6 8 5 21 9 24 1977-2005 877.8 875.9 875.6 877.0 880.0 878.8 878.0 881.8 881.9 885.0 880.0 875.5 875.5 YEAR-DAY 3-29 90-16 88- 5 2- 4 91-23 99-25 98- 6 2-17 96- 9 96-27 95-26 94- 4 94- 4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 58 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QNH PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1022.5 1025.3 1021.8 1022.0 ****** 1982 1019.2 1019.2 1018.8 1019.0 1022.5 1019.3 ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.0 1023.4 ****** ****** 1984 ****** ****** ****** ****** 1019.0 1017.2 1015.5 1015.1 1021.6 1024.7 1022.9 1026.0 ****** 1985 1020.7 1014.1 1022.8 1017.5 1018.8 1015.7 1012.7 1015.2 1016.3 1019.0 1020.6 1017.6 1017.6 1986 1017.1 1015.4 1018.1 1016.8 1014.7 1011.5 1013.8 1015.4 1018.6 ****** 1022.6 ****** ****** 1987 1018.7 ****** 1010.9 1015.4 1014.7 1013.5 ****** ****** ****** ****** ****** ****** ****** 1988 1017.2 1016.7 1011.9 1015.7 1015.2 1011.4 1011.2 1012.7 1016.6 1020.0 1018.6 1015.7 1015.2 1989 1017.6 1019.4 1013.2 1016.8 1016.6 1012.9 ****** ****** 1012.9 ****** 1019.2 1016.4 ****** 1990 1018.1 1015.0 1018.6 1013.3 1015.2 1012.2 1012.3 1014.2 1015.3 1019.8 1019.9 1019.0 1016.1 1991 1017.7 1018.0 1015.4 1015.3 1012.2 1013.2 1010.9 1012.8 1017.3 1020.0 1021.3 1015.9 1015.8 1992 1016.0 1012.6 1015.4 1013.4 1016.0 1012.1 1012.5 1015.6 1017.9 1018.8 1019.1 1017.3 1015.6 1993 1017.8 1017.1 1015.4 1014.2 1014.5 1013.0 1013.5 1014.8 1016.3 1022.9 1019.6 1020.3 1016.6 1994 1017.4 1015.4 1015.4 1016.6 1014.5 1011.7 1011.0 1012.2 1019.9 1021.4 1016.6 1018.4 1015.9 1995 1018.6 1017.2 1015.7 1013.7 1016.5 1012.5 1009.8 1012.2 1015.3 1020.2 1017.6 1020.3 1015.8 1996 1019.7 1016.0 1014.2 1015.6 1015.8 1013.8 1014.0 1014.0 1013.5 1018.9 1023.2 1019.6 1016.5 1997 1016.3 1017.0 1012.5 1012.8 1015.9 1012.0 1010.4 1012.9 1017.1 1017.8 1020.4 1017.2 1015.2 1998 1015.2 1016.2 1013.7 1014.5 1015.9 1015.2 1011.6 1014.6 1016.1 1020.1 1020.1 1022.0 1016.3 1999 1018.3 1014.3 1014.7 1016.0 1015.6 1012.7 1011.7 1013.0 1015.5 1018.3 1019.0 1021.8 1015.9 2000 1016.2 1016.4 1015.0 1014.3 1013.7 1013.1 1013.2 1013.9 1015.3 1020.2 1022.2 1018.8 1016.0 2001 1020.4 1015.7 1015.5 1014.9 1013.0 1012.2 1012.5 1014.2 1015.9 1019.0 1017.8 1019.1 1015.9 2002 1017.9 1016.5 1014.9 1012.5 1014.2 1012.2 1013.1 1012.1 1016.7 1018.7 1020.5 1017.8 1015.6 2003 1017.0 1013.1 1014.8 1015.5 1016.8 1013.0 1010.3 1014.2 1016.4 1017.2 1019.7 1020.1 1015.7 2004 1013.9 1015.1 1018.2 1014.6 1012.6 1013.0 1013.1 1012.1 1017.8 1021.0 1017.5 1018.1 1015.6 2005 1016.2 1015.7 1013.3 1017.2 1015.2 1013.0 1012.1 1013.0 1015.6 1020.1 1020.8 1020.2 1016.0 MEAN 1017.6 1016.0 1015.4 1015.3 1015.6 1013.3 1012.3 1013.7 1016.8 1020.3 1020.2 1019.2 1016.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 59 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QNH PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1028.3 1032.3 1030.5 1029.6 ****** DAY ** ** ** ** ** ** ** ** 27 29 16 2 1982 1025.3 1028.3 1026.2 1029.6 1032.5 1025.0 ****** ****** ****** ****** ****** ****** ****** DAY 23 11 5 4 10 7 ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1030.6 1035.6 ****** ****** DAY ** ** ** ** ** ** ** ** ** 29 5 ** 1984 ****** ****** ****** ****** 1023.7 1022.1 1021.2 1019.1 1026.0 1033.9 1032.5 1035.1 ****** DAY ** ** ** ** 17 13 4 4 22 22 27 19 1985 1027.6 1025.2 1036.6 1032.8 1027.0 1021.9 1016.9 1019.1 1024.7 1025.5 1027.9 1026.7 1036.6 DAY 28 24 6 17 13 10 16 25 22 7 1 9 1986 1026.3 1021.7 1025.1 1026.6 1022.6 1017.8 1017.4 1017.6 1022.5 ****** 1028.6 ****** ****** DAY 29 22 3 5 19 3 2 25 22 ** 16 ** 1987 1029.8 ****** 1023.5 1022.1 1022.3 1018.4 ****** ****** ****** ****** ****** ****** ****** DAY 21 ** 23 22 1 6 ** ** ** ** ** ** 1988 1027.3 1027.8 1023.2 1026.6 1023.2 1017.4 1015.1 1018.4 1022.2 1027.8 1028.2 1024.0 1028.2 DAY 3 7 17 9 5 1 31 21 25 17 6 22 1989 1029.0 1027.8 1019.8 1021.3 1021.9 1017.2 ****** ****** 1018.0 ****** 1025.9 1020.8 ****** DAY 22 4 8 5 21 2 ** ** 16 ** 8 28 1990 1026.5 1026.2 1030.3 1020.8 1023.0 1018.1 1016.4 1017.9 1020.5 1030.5 1029.3 1027.6 1030.5 DAY 27 8 17 24 16 5 17 29 16 16 14 29 1991 1025.9 1026.8 1021.8 1023.2 1018.0 1019.4 1016.2 1016.3 1023.7 1024.3 1025.3 1026.8 1026.8 DAY 11 15 12 29 25 18 12 27 16 13 23 17 1992 1028.7 1021.8 1024.1 1018.7 1023.0 1018.4 1018.0 1022.2 1023.3 1024.3 1030.2 1024.8 1030.2 DAY 10 16 13 8 3 7 13 31 30 30 4 3 1993 1029.3 1026.3 1023.9 1023.1 1022.3 1023.0 1018.7 1020.0 1024.7 1028.6 1028.2 1026.1 1029.3 DAY 6 10 17 1 9 23 28 29 23 20 22 27 1994 1028.8 1027.9 1023.2 1027.8 1021.3 1015.3 1014.9 1016.2 1026.5 1026.9 1023.6 1027.7 1028.8 DAY 10 18 1 5 19 9 2 8 23 24 3 22 1995 1028.7 1022.9 1025.0 1021.0 1021.0 1018.2 1014.2 1018.0 1022.2 1030.7 1027.7 1028.3 1030.7 DAY 7 12 3 7 26 1 4 25 22 18 16 11 1996 1030.8 1022.8 1018.7 1025.1 1020.7 1019.4 1020.5 1022.8 1020.9 1029.2 1032.8 1028.5 1032.8 DAY 10 13 16 5 7 12 4 30 25 2 19 8 1997 1026.6 1023.8 1027.9 1019.3 1022.8 1016.6 1015.6 1017.4 1022.9 1024.5 1032.5 1025.2 1032.5 DAY 24 8 11 14 12 8 20 22 7 9 8 29 1998 1024.5 1030.6 1022.9 1024.6 1023.3 1019.4 1018.1 1018.0 1021.7 1030.8 1028.7 1028.5 1030.8 DAY 4 23 27 12 10 6 20 19 13 10 21 12 1999 1032.2 1023.9 1022.6 1023.3 1020.1 1021.1 1016.2 1019.9 1020.6 1024.1 1026.5 1030.6 1032.2 DAY 2 12 19 23 2 17 19 20 5 26 30 1 2000 1025.1 1025.6 1026.5 1020.6 1021.5 1019.2 1018.4 1017.9 1020.5 1025.8 1032.9 1025.8 1032.9 DAY 31 29 27 2 5 16 31 9 29 16 17 10 2001 1025.6 1029.5 1026.5 1025.6 1019.0 1020.0 1015.8 1019.8 1022.7 1027.8 1023.9 1025.9 1029.5 DAY 26 10 2 2 19 2 29 5 20 11 20 10 2002 1025.3 1028.8 1029.0 1021.1 1021.7 1020.5 1018.0 1019.4 1022.1 1023.6 1028.7 1030.8 1030.8 DAY 26 19 11 1 17 25 3 31 21 11 18 3 2003 1023.9 1023.3 1025.8 1021.8 1025.5 1019.0 1017.4 1017.6 1024.3 1023.3 1029.5 1033.0 1033.0 DAY 11 13 3 30 2 7 4 4 27 16 26 12 2004 1022.2 1020.1 1030.5 1022.8 1020.8 1020.8 1018.2 1016.2 1022.9 1028.0 1024.9 1028.0 1030.5 DAY 1 13 9 11 22 6 6 18 21 15 29 4 2005 1025.0 1025.5 1019.3 1029.9 1021.7 1017.4 1016.0 1018.3 1020.0 1027.0 1026.8 1030.8 1030.8 DAY 8 17 16 6 19 9 9 27 9 24 24 29 1977-2005 1032.2 1030.6 1036.6 1032.8 1032.5 1025.0 1021.2 1022.8 1028.3 1033.9 1035.6 1035.1 1036.6 YEAR-DAY 99- 2 98-23 85- 6 85-17 82-10 82- 7 84- 4 96-30 81-27 84-22 83- 5 84-19 85- 6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 60 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QNH PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1017.4 1019.3 1014.7 1012.8 ****** DAY ** ** ** ** ** ** ** ** 12 16 4 19 1982 1008.3 1008.7 1007.7 1009.7 1015.2 1014.2 ****** ****** ****** ****** ****** ****** ****** DAY 29 1 3 19 15 15 ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1016.4 1016.1 ****** ****** DAY ** ** ** ** ** ** ** ** ** 5 13 ** 1984 ****** ****** ****** ****** 1012.7 1008.6 1012.2 1011.0 1016.3 1013.3 1013.4 1016.7 ****** DAY ** ** ** ** 1 21 29 16 8 18 13 7 1985 1011.2 1001.5 1007.4 1011.7 1013.4 1009.4 1007.2 1010.2 1010.1 1012.1 1015.8 999.8 999.8 DAY 19 6 24 3 1 21 20 8 7 11 8 19 1986 1003.3 1009.7 1009.8 1010.1 1007.0 1007.0 1010.4 1011.3 1014.6 ****** 1014.4 ****** ****** DAY 20 16 10 11 3 13 10 15 26 ** 30 ** 1987 1008.1 ****** 1000.7 1004.1 1008.3 1010.8 ****** ****** ****** ****** ****** ****** ****** DAY 3 ** 20 20 23 19 ** ** ** ** ** ** 1988 1006.3 1007.4 998.2 1009.8 1007.2 1003.8 1007.7 1006.3 1010.9 1009.8 1008.9 1000.4 998.2 DAY 29 2 5 15 1 24 1 30 5 31 20 26 1989 1009.2 1007.2 1001.1 1011.9 1007.2 1007.0 ****** ****** 1008.4 ****** 1011.4 1007.8 ****** DAY 3 23 30 29 7 11 ** ** 14 ** 25 5 1990 1008.9 998.5 1011.3 1005.2 1003.8 1005.0 1008.2 1009.4 1010.7 1013.7 1009.0 1011.6 998.5 DAY 18 16 25 16 13 27 28 7 1 26 1 18 1991 1007.0 1008.2 1000.3 1001.3 1003.1 1006.1 1001.8 1007.1 1010.0 1015.6 1012.8 1006.8 1000.3 DAY 5 4 7 5 23 12 8 6 20 5 5 26 1992 1003.3 1004.9 1001.9 1008.0 1010.0 1006.6 1007.4 1010.1 1013.0 1013.6 1008.8 1012.1 1001.9 DAY 3 25 31 10 19 28 10 19 18 25 26 28 1993 1005.2 1009.6 1002.8 1008.1 1010.3 1008.6 1008.6 1008.7 1009.1 1014.6 1006.3 1012.2 1002.8 DAY 9 3 22 12 14 17 25 13 14 1 14 5 1994 1005.9 1006.3 1007.3 1006.0 1005.3 1005.4 1006.3 1006.6 1015.0 1013.8 1003.2 998.1 998.1 DAY 17 9 13 2 1 16 31 2 1 15 26 4 1995 1010.1 1009.2 1001.2 1008.1 1011.4 1004.3 1004.0 1006.6 1010.0 1012.6 1003.1 1014.0 1001.2 DAY 12 9 26 20 7 30 16 23 20 4 26 22 1996 1007.6 1005.4 1005.9 1007.0 1011.2 1008.9 1009.4 1008.4 1005.2 1008.7 1016.3 1009.6 1005.2 DAY 7 10 26 13 30 19 7 8 9 27 29 25 1997 1007.2 1007.7 1002.4 1001.5 1003.8 1008.6 1005.7 1006.8 1007.2 1012.2 1013.3 1006.4 1001.5 DAY 16 1 26 10 5 30 16 15 2 7 5 10 1998 1004.3 1000.4 1000.1 1006.6 1005.2 1011.7 1000.9 1011.0 1010.9 1009.4 1013.1 1010.4 1000.1 DAY 13 14 19 21 22 24 6 13 3 2 11 21 1999 1010.2 998.7 1007.6 1006.9 1009.9 1001.8 1007.2 1009.4 1010.0 1014.0 1011.4 1012.6 998.7 DAY 10 21 22 14 20 25 22 7 13 13 26 16 2000 1003.1 1005.3 1005.2 1009.9 1006.6 1008.6 1007.1 1008.1 1008.8 1014.2 1016.2 1009.7 1003.1 DAY 21 7 25 22 27 6 11 31 1 1 22 16 2001 1014.9 1002.0 1005.2 1006.4 1004.7 1003.7 1006.3 1007.1 1009.7 1010.8 1007.1 1012.1 1002.0 DAY 1 22 25 13 9 7 19 31 5 25 18 6 2002 1006.2 1005.0 1003.1 999.8 1009.6 1003.1 1005.3 1005.1 1011.7 1011.8 1011.1 1002.4 999.8 DAY 8 27 29 4 30 20 25 17 11 22 12 22 2003 1000.7 1001.0 1003.3 1009.6 1009.9 1007.9 1005.8 1010.7 1008.1 1009.7 1011.9 1009.8 1000.7 DAY 29 19 27 27 30 27 8 1 7 26 21 7 2004 1004.4 1003.8 1007.7 1004.3 1003.8 1008.0 1007.4 1005.1 1011.2 1013.2 1006.4 1007.7 1003.8 DAY 24 16 31 17 13 10 11 13 11 22 28 10 2005 1004.9 1004.2 1004.3 1010.3 1004.9 1002.9 1003.7 1007.0 1009.8 1011.0 1012.2 1006.1 1002.9 DAY 24 2 24 30 6 21 6 8 5 21 9 24 1977-2005 1000.7 998.5 998.2 999.8 1003.1 1001.8 1000.9 1005.1 1005.2 1008.7 1003.1 998.1 998.1 YEAR-DAY 3-29 90-16 88- 5 2- 4 91-23 99-25 98- 6 2-17 96- 9 96-27 95-26 94- 4 94- 4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 61 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1016.1 1022.0 1020.4 1022.9 ****** 1982 1024.1 1022.2 1019.3 1014.3 1016.8 1011.6 ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.6 1021.2 ****** ****** 1984 ****** ****** ****** ****** 1014.9 1009.7 1006.4 1006.0 1015.3 1021.7 1021.7 1030.1 ****** 1985 1023.1 1014.2 1023.8 1013.6 1013.0 1007.0 ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.3 ****** ****** 1987 1022.1 ****** 1012.8 1015.1 1010.6 1008.2 ****** ****** ****** ****** ****** ****** ****** 1988 1022.8 1020.9 1012.8 1014.5 1012.4 1005.4 1004.6 1007.0 1012.5 1018.3 1018.8 1017.7 1014.0 1989 1024.2 1026.3 1014.4 1015.1 1014.0 1007.3 ****** ****** 1007.3 ****** 1020.3 1018.9 ****** 1990 1023.1 1019.1 1020.4 1012.6 1011.7 1006.0 1005.7 1007.8 1009.8 1018.4 1020.3 1023.2 1014.8 1991 1022.9 1022.2 1017.3 1013.7 1010.0 1008.2 1004.2 1006.3 1012.8 1018.2 1022.9 1018.9 1014.8 1992 1021.1 1015.9 1018.8 1013.0 1014.7 1007.3 1005.9 1010.5 1014.2 1017.5 1019.3 1020.3 1014.9 1993 1023.6 1021.2 1017.6 1013.0 1011.6 1008.2 1007.4 1008.8 1011.4 1022.4 1022.0 1023.8 1015.9 1994 1021.3 1019.8 1016.6 1015.4 1011.1 1006.8 1004.9 1005.5 1016.7 1020.6 1016.4 1022.4 1014.8 1995 1021.8 1020.3 1017.1 1012.4 1012.9 1007.3 1002.6 1005.3 1010.8 1019.3 1017.8 1024.4 1014.3 1996 1024.2 1019.7 1016.6 1015.2 1012.2 1008.6 1006.4 1006.0 1006.5 1016.0 1023.8 1020.8 1014.7 1997 1018.6 1020.9 1013.9 1010.1 1011.5 1004.8 1001.5 1004.5 1011.0 1013.8 1020.3 1018.9 1012.5 1998 1019.0 1019.4 1014.1 1011.1 1012.8 1009.6 1005.0 1008.1 1011.4 1018.3 1019.9 1023.7 1014.4 1999 1022.2 1015.7 1016.3 1015.2 1012.7 1007.1 1005.8 1006.1 1010.8 1016.1 1020.8 1024.3 1014.4 2000 1019.7 1020.3 1016.7 1011.5 1009.2 1007.8 1006.8 1007.2 1008.5 1017.7 1023.2 1020.3 1014.1 2001 1023.5 1017.5 1014.7 1011.5 1007.6 1006.6 1004.8 1006.2 1009.7 1015.6 1017.0 1019.9 1012.9 2002 1020.0 1018.7 1014.1 1010.5 1010.4 1005.5 1005.2 1003.6 1009.9 1013.8 1020.0 1021.6 1012.8 2003 1019.6 1014.7 1015.9 1013.8 1013.5 1007.0 1001.8 1006.5 1010.6 1012.7 1020.1 1022.2 1013.2 2004 1015.7 1015.8 1018.0 1012.9 1007.8 1006.0 1005.6 1004.1 1011.9 1018.2 1016.4 1021.1 1012.8 2005 1019.3 1018.6 1013.0 1014.8 1010.9 1006.1 1003.3 1005.5 1008.8 1016.3 1021.1 1021.2 1013.2 MEAN 1021.5 1019.2 1016.4 1013.3 1011.9 1007.4 1004.9 1006.4 1011.3 1017.9 1020.4 1021.8 1014.4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 62 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1024.7 1030.2 1030.7 1030.6 ****** DAY ** ** ** ** ** ** ** ** 23 29 16 2 1982 1037.9 1034.2 1030.8 1029.2 1029.9 1018.2 ****** ****** ****** ****** ****** ****** ****** DAY 22 11 6 4 10 7 ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1027.5 1035.4 ****** ****** DAY ** ** ** ** ** ** ** ** ** 29 5 ** 1984 ****** ****** ****** ****** 1020.8 1017.4 1013.4 1011.0 1019.8 1034.9 1032.9 1039.0 ****** DAY ** ** ** ** 12 16 4 4 22 22 27 19 1985 1031.6 1030.4 1041.2 1033.6 1022.4 1015.8 ****** ****** ****** ****** ****** ****** ****** DAY 18 24 6 17 12 10 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1033.4 ****** ****** DAY ** ** ** ** ** ** ** ** ** ** 16 ** 1987 1037.1 ****** 1029.7 1024.7 1021.5 1016.1 ****** ****** ****** ****** ****** ****** ****** DAY 12 ** 23 22 1 6 ** ** ** ** ** ** 1988 1035.1 1036.7 1024.8 1030.6 1023.9 1013.6 1008.8 1012.9 1020.6 1028.9 1028.7 1028.9 1036.7 DAY 3 7 17 9 5 1 28 22 25 17 6 22 1989 1035.3 1037.5 1022.4 1021.9 1022.9 1015.2 ****** ****** 1013.8 ****** 1030.4 1024.3 ****** DAY 28 4 1 2 1 2 ** ** 4 ** 8 19 1990 1034.0 1032.7 1036.1 1022.9 1021.6 1014.3 1009.9 1012.6 1015.3 1034.4 1032.3 1036.6 1036.6 DAY 27 8 17 24 16 7 15 30 24 16 14 29 1991 1033.0 1035.3 1029.2 1023.6 1018.5 1014.7 1011.8 1011.4 1022.0 1024.2 1029.3 1032.4 1035.3 DAY 1 14 12 15 5 18 12 28 27 14 23 17 1992 1038.0 1028.7 1033.0 1020.3 1025.9 1015.3 1014.4 1021.4 1022.4 1024.9 1032.4 1029.6 1038.0 DAY 10 16 13 20 3 7 13 31 30 17 4 29 1993 1036.0 1032.9 1029.6 1023.1 1023.3 1021.8 1013.2 1014.0 1022.4 1030.0 1033.0 1030.2 1036.0 DAY 7 17 17 1 9 23 27 24 23 8 22 7 1994 1035.1 1034.0 1027.3 1033.5 1021.5 1012.0 1013.7 1011.1 1023.6 1026.5 1023.9 1035.0 1035.1 DAY 10 18 1 5 19 6 14 7 23 25 3 8 1995 1032.9 1028.5 1029.6 1024.0 1019.1 1015.0 1008.2 1011.8 1021.6 1035.1 1031.0 1036.0 1036.0 DAY 7 18 3 7 26 1 24 25 22 18 16 11 1996 1037.6 1032.2 1023.3 1029.0 1019.6 1016.5 1014.2 1017.3 1017.2 1026.9 1036.2 1033.3 1037.6 DAY 10 4 17 5 2 13 4 30 25 19 19 8 1997 1030.7 1032.7 1032.5 1020.5 1020.4 1011.7 1008.5 1009.9 1018.4 1022.0 1034.6 1029.5 1034.6 DAY 24 8 11 13 7 5 20 28 8 9 8 29 1998 1029.3 1036.9 1024.2 1021.6 1022.7 1014.5 1012.0 1012.1 1020.7 1034.0 1029.1 1030.8 1036.9 DAY 4 23 27 7 3 5 15 19 13 10 21 3 1999 1040.0 1027.8 1029.0 1025.1 1020.0 1017.2 1013.1 1012.8 1020.0 1026.8 1032.2 1036.5 1040.0 DAY 2 12 19 23 2 17 28 20 29 26 30 1 2000 1032.1 1031.3 1028.9 1021.2 1018.7 1016.6 1011.8 1013.0 1015.8 1026.0 1036.6 1027.7 1036.6 DAY 31 11 16 2 5 16 26 9 26 16 17 10 2001 1031.3 1033.7 1028.7 1025.0 1016.4 1016.5 1009.5 1012.2 1020.6 1026.5 1027.4 1029.8 1033.7 DAY 26 10 12 2 19 2 29 14 20 28 20 22 2002 1029.4 1034.4 1035.2 1021.2 1019.2 1014.9 1011.7 1012.4 1015.7 1020.9 1030.4 1037.1 1037.1 DAY 26 19 11 1 17 25 2 31 30 23 18 4 2003 1028.7 1029.0 1033.0 1024.1 1027.7 1018.3 1010.3 1010.1 1022.7 1019.8 1033.0 1039.3 1039.3 DAY 23 13 3 30 2 7 4 4 27 16 23 12 2004 1028.0 1021.6 1033.3 1023.5 1019.6 1016.4 1010.8 1009.2 1018.2 1027.8 1030.2 1033.4 1033.4 DAY 1 4 9 6 22 14 8 18 26 15 29 4 2005 1028.6 1030.8 1024.0 1034.5 1018.4 1013.5 1007.8 1012.2 1013.5 1027.5 1028.1 1036.1 1036.1 DAY 8 17 27 6 19 9 9 27 10 24 25 29 1977-2005 1040.0 1037.5 1041.2 1034.5 1029.9 1021.8 1014.4 1021.4 1024.7 1035.1 1036.6 1039.3 1041.2 YEAR-DAY 99- 2 89- 4 85- 6 5- 6 82-10 93-23 92-13 92-31 81-23 95-18 0-17 3-12 85- 6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 63 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1008.6 1014.0 1010.7 1009.2 ****** DAY ** ** ** ** ** ** ** ** 17 13 6 19 1982 1008.7 1008.2 1002.2 1002.6 1008.8 1005.4 ****** ****** ****** ****** ****** ****** ****** DAY 9 1 19 19 15 12 ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1009.5 1012.3 ****** ****** DAY ** ** ** ** ** ** ** ** ** 5 13 ** 1984 ****** ****** ****** ****** 1008.3 999.4 1003.8 1000.3 1009.6 1006.9 1009.5 1018.5 ****** DAY ** ** ** ** 1 21 27 16 3 18 12 15 1985 1012.5 997.8 1004.1 1004.9 1007.8 1000.2 ****** ****** ****** ****** ****** ****** ****** DAY 19 6 24 3 22 20 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1015.3 ****** ****** DAY ** ** ** ** ** ** ** ** ** ** 30 ** 1987 1009.1 ****** 999.6 999.9 1003.2 1003.8 ****** ****** ****** ****** ****** ****** ****** DAY 27 ** 20 20 23 19 ** ** ** ** ** ** 1988 1009.0 1006.9 996.3 1005.9 1001.9 995.2 1000.5 999.8 1004.4 1007.2 1006.5 1001.0 995.2 DAY 29 2 5 23 29 23 16 30 5 31 20 26 1989 1012.4 1009.5 1001.2 1006.7 1002.0 999.7 ****** ****** 1002.7 ****** 1009.9 1009.9 ****** DAY 3 23 30 29 7 11 ** ** 12 ** 20 5 1990 1012.1 998.7 1007.8 1002.6 997.3 996.4 999.5 1001.8 1004.2 1010.4 1007.1 1011.5 996.4 DAY 5 16 25 16 13 27 28 8 1 26 1 18 1991 1010.0 1009.0 1000.4 997.0 997.4 999.4 992.2 998.6 1003.5 1012.2 1009.9 1006.9 992.2 DAY 5 4 7 5 17 12 8 6 20 5 5 10 1992 1004.5 1004.9 999.3 1005.2 1005.7 999.7 1000.5 1003.2 1007.5 1010.2 1007.0 1013.7 999.3 DAY 3 25 31 15 19 28 10 1 18 11 26 14 1993 1010.4 1010.1 1002.5 1003.2 1006.2 1001.8 1002.0 1001.6 1003.2 1010.6 1007.8 1015.7 1001.6 DAY 29 3 22 12 14 18 25 13 14 1 10 5 1994 1007.5 1006.8 1007.2 1003.3 1002.1 998.5 998.4 999.1 1008.5 1012.1 1002.3 995.9 995.9 DAY 17 1 8 2 1 16 21 2 1 15 26 4 1995 1010.3 1009.4 997.8 1003.0 1006.6 996.5 994.1 998.1 1004.4 1007.7 1003.5 1015.6 994.1 DAY 17 9 26 20 7 30 16 23 19 4 26 22 1996 1006.4 1004.7 1003.5 1003.2 1005.1 1001.7 1002.2 999.6 995.4 1003.5 1015.9 1007.5 995.4 DAY 7 10 26 19 30 2 7 9 9 27 2 30 1997 1006.4 1008.7 1001.7 997.6 997.2 1000.1 996.8 997.0 998.3 1005.2 1008.3 1005.2 996.8 DAY 16 23 25 10 5 23 16 14 2 7 5 10 1998 1007.5 1003.8 995.1 999.6 998.9 1004.3 992.5 1004.2 1003.7 1003.0 1010.6 1011.8 992.5 DAY 13 8 30 21 22 28 6 13 3 2 11 21 1999 1009.8 996.5 1006.3 1003.4 1003.9 995.5 1000.0 1001.0 1002.9 1009.5 1010.5 1012.4 995.5 DAY 10 21 21 14 14 25 22 7 16 13 20 16 2000 1003.7 1007.4 1002.2 1003.9 998.5 1002.0 1000.2 998.9 999.2 1008.9 1016.2 1011.9 998.5 DAY 21 7 25 10 27 6 11 31 1 1 6 16 2001 1015.7 1000.0 1001.0 1001.2 999.0 1000.0 997.4 997.9 1001.0 1005.9 1003.7 1010.0 997.4 DAY 1 21 25 13 30 26 10 31 5 25 18 20 2002 1002.5 1002.4 997.5 998.1 1002.0 994.1 996.8 995.7 1004.4 1007.2 1007.0 1002.0 994.1 DAY 8 27 29 4 30 20 25 9 11 22 13 22 2003 1001.9 1004.1 1001.3 1003.7 1004.3 1000.3 995.7 1003.2 1001.4 1003.5 1009.9 1008.2 995.7 DAY 29 19 27 27 30 18 9 27 7 26 1 7 2004 1004.4 1000.7 1002.1 998.7 996.6 999.3 1001.0 994.1 1003.9 1008.0 1004.0 1009.0 994.1 DAY 14 15 31 24 13 18 11 13 11 22 24 10 2005 1007.5 1003.2 1002.3 1005.0 1000.4 993.4 994.4 997.4 1002.1 1004.9 1010.3 1003.5 993.4 DAY 25 2 24 30 6 21 6 8 5 21 6 24 1977-2005 1001.9 996.5 995.1 997.0 996.6 993.4 992.2 994.1 995.4 1003.0 1002.3 995.9 992.2 YEAR-DAY 3-29 99-21 98-30 91- 5 4-13 5-21 91- 8 4-13 96- 9 98- 2 94-26 94- 4 91- 8 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 64 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF COMPUTED QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1016.4 1022.6 1020.9 1023.7 ****** 1982 1021.7 ****** ****** ****** 1017.3 ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.3 1021.8 ****** ****** 1984 ****** ****** ****** ****** 1015.5 1010.1 1006.8 1006.4 1015.5 1022.3 1021.9 1030.8 ****** 1985 1023.9 1015.2 1024.6 1014.1 1013.6 1007.4 1004.7 1008.4 1010.2 1016.5 1020.0 1019.6 1014.9 1986 1020.2 1017.4 1020.8 1014.9 1010.0 1005.0 1005.7 1008.1 1012.7 ****** 1025.1 ****** ****** 1987 1020.4 ****** 1011.7 1013.7 1009.2 1006.8 ****** ****** ****** ****** ****** ****** ****** 1988 1021.3 1019.8 1011.7 1013.2 1010.9 1004.2 1003.1 1005.3 1010.9 1017.0 1017.6 1016.6 1012.6 1989 1023.2 1024.9 1013.3 1013.9 1012.7 1005.9 ****** ****** 1005.8 ****** 1019.0 1017.7 ****** 1990 1021.9 1017.9 1019.3 1011.4 1010.4 1004.7 1004.3 1006.3 1008.4 1017.1 1019.0 1022.2 1013.6 1991 1021.7 1021.0 1016.1 1012.4 1008.7 1006.9 1002.9 1004.8 1011.3 1016.9 1021.5 1017.8 1013.5 1992 1020.0 1015.1 1017.7 1011.8 1013.4 1005.8 1004.5 1009.1 1012.8 1016.2 1018.1 1019.2 1013.6 1993 1022.4 1020.1 1016.5 1011.7 1010.3 1006.8 1005.8 1007.5 1009.9 1021.0 1020.8 1022.5 1014.6 1994 1020.1 1018.8 1015.6 1014.2 1009.8 1005.5 1003.2 1004.0 1015.4 1019.2 1015.2 1021.2 1013.5 1995 1020.6 1019.2 1016.1 1011.1 1011.7 1006.1 1001.3 1003.9 1009.5 1018.1 1016.7 1023.1 1013.1 1996 1023.1 1018.7 1015.5 1014.0 1011.0 1007.1 1005.8 1006.2 1006.7 1016.0 1023.9 1020.8 1014.1 1997 1018.6 1021.0 1013.9 1010.2 1011.6 1005.0 1001.8 1004.7 1011.1 1013.9 1020.4 1019.0 1012.6 1998 1019.0 1019.5 1014.2 1011.2 1011.6 1008.2 1003.6 1006.6 1010.1 1016.9 1018.6 1022.4 1013.5 1999 1021.0 1014.6 1015.2 1014.0 1011.4 1005.6 1004.3 1004.8 1009.5 1014.8 1019.6 1022.9 1013.1 2000 1018.7 1019.2 1015.7 1010.3 1008.1 1006.4 1005.3 1006.1 1008.5 1017.6 1023.2 1020.2 1013.3 2001 1023.5 1017.5 1014.9 1011.5 1007.3 1005.2 1004.7 1006.2 1009.7 1015.6 1017.0 1019.8 1012.7 2002 1020.0 1018.7 1014.1 1010.5 1010.4 1005.6 1005.3 1003.8 1009.9 1013.8 1020.0 1021.5 1012.8 2003 1019.7 1014.7 1015.9 1013.8 1013.5 1007.0 1001.9 1006.5 1010.6 1012.6 1020.0 1022.2 1013.2 2004 1015.7 1015.8 1018.0 1012.9 1007.8 1006.0 1005.6 1004.0 1011.8 1018.1 1016.2 1021.0 1012.8 2005 1019.2 1018.6 1013.0 1014.7 1010.7 1006.1 1003.3 1005.4 1008.8 1016.2 1021.1 1021.2 1013.2 MEAN 1020.7 1018.4 1015.9 1012.6 1011.2 1006.2 1004.2 1005.9 1010.7 1017.3 1019.9 1021.2 1013.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 65 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF COMPUTED QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1025.2 1031.2 1031.4 1031.3 ****** DAY ** ** ** ** ** ** ** ** 24 29 16 2 1982 1034.4 ****** ****** ****** 1030.2 ****** ****** ****** ****** ****** ****** ****** ****** DAY 23 ** ** ** 10 ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1028.1 1037.3 ****** ****** DAY ** ** ** ** ** ** ** ** ** 29 5 ** 1984 ****** ****** ****** ****** 1021.2 1018.0 1013.8 1011.1 1020.2 1035.4 1033.5 1039.8 ****** DAY ** ** ** ** 12 16 4 4 22 22 27 19 1985 1032.7 1031.6 1042.1 1034.1 1023.0 1016.2 1009.5 1014.2 1020.7 1023.2 1029.0 1032.9 1042.1 DAY 18 24 6 17 12 10 29 31 22 23 1 9 1986 1033.0 1024.3 1030.4 1026.3 1020.5 1012.4 1012.0 1012.5 1017.2 ****** 1033.3 ****** ****** DAY 29 14 3 5 19 3 22 8 30 ** 16 ** 1987 1033.1 ****** 1028.1 1023.3 1020.1 1014.4 ****** ****** ****** ****** ****** ****** ****** DAY 12 ** 23 22 1 6 ** ** ** ** ** ** 1988 1033.6 1036.6 1023.4 1029.3 1022.4 1012.3 1007.4 1010.7 1019.2 1027.4 1026.9 1027.6 1036.6 DAY 3 7 17 9 5 1 28 22 25 17 6 22 1989 1034.1 1036.7 1021.5 1020.6 1021.6 1013.5 ****** ****** 1011.8 ****** 1028.9 1023.0 ****** DAY 28 4 12 2 1 2 ** ** 16 ** 8 19 1990 1032.9 1031.5 1035.7 1021.5 1020.1 1012.8 1007.9 1011.0 1013.6 1033.2 1030.8 1035.4 1035.7 DAY 27 8 17 24 16 7 1 30 24 16 14 29 1991 1031.9 1033.9 1028.0 1022.3 1017.1 1013.1 1010.1 1009.9 1020.4 1022.9 1027.9 1031.1 1033.9 DAY 1 14 12 15 5 18 12 23 27 14 23 17 1992 1036.9 1027.5 1031.8 1019.0 1024.4 1013.9 1012.9 1020.0 1020.8 1023.6 1030.6 1028.5 1036.9 DAY 10 16 13 20 3 7 13 31 30 17 4 29 1993 1034.9 1031.8 1028.4 1021.7 1021.8 1020.0 1010.9 1012.3 1020.7 1028.5 1031.5 1029.1 1034.9 DAY 7 17 17 1 9 23 28 24 23 8 22 7 1994 1033.9 1033.0 1026.0 1032.2 1019.8 1010.6 1009.4 1009.4 1022.2 1025.0 1022.3 1033.9 1033.9 DAY 10 18 1 5 19 6 2 7 23 25 3 8 1995 1031.5 1027.3 1028.3 1022.6 1017.9 1013.9 1007.0 1010.5 1020.1 1033.7 1029.6 1034.8 1034.8 DAY 7 18 3 7 26 1 25 25 22 18 28 11 1996 1036.4 1031.1 1022.2 1027.7 1018.3 1014.6 1012.4 1017.4 1017.3 1026.9 1036.3 1033.4 1036.4 DAY 10 4 17 5 2 12 4 30 25 19 19 8 1997 1030.8 1032.8 1032.5 1020.5 1020.3 1011.6 1008.0 1010.0 1018.0 1022.2 1034.5 1029.7 1034.5 DAY 24 8 11 13 7 5 20 28 7 9 8 28 1998 1029.3 1036.9 1024.2 1021.5 1022.7 1013.0 1010.2 1010.4 1019.3 1032.6 1027.4 1029.4 1036.9 DAY 4 23 1 7 3 6 15 19 13 10 21 3 1999 1039.0 1025.5 1028.3 1023.8 1019.0 1015.8 1011.5 1011.3 1019.0 1025.4 1030.9 1035.2 1039.0 DAY 2 12 19 23 9 17 28 20 24 26 30 1 2000 1030.9 1029.2 1028.1 1019.9 1017.1 1015.2 1010.6 1011.1 1015.6 1026.0 1036.5 1027.8 1036.5 DAY 31 11 16 3 5 16 26 9 26 16 17 10 2001 1031.3 1033.7 1028.6 1024.8 1016.3 1016.4 1009.6 1012.0 1020.6 1026.5 1027.4 1029.9 1033.7 DAY 26 10 12 2 19 2 29 14 20 28 20 22 2002 1029.3 1034.4 1035.2 1021.4 1019.1 1015.0 1011.7 1012.4 1015.6 1020.9 1030.4 1037.1 1037.1 DAY 26 19 11 1 17 25 2 31 30 23 18 4 2003 1028.8 1029.0 1032.9 1024.0 1027.7 1018.3 1010.3 1010.1 1022.7 1019.8 1032.9 1041.0 1041.0 DAY 23 13 3 30 2 7 4 4 27 16 23 12 2004 1027.9 1021.6 1033.3 1023.5 1019.7 1016.4 1010.7 1009.2 1018.2 1027.8 1030.3 1033.4 1033.4 DAY 1 4 9 6 22 14 8 18 26 15 29 4 2005 1028.3 1030.8 1023.9 1034.2 1018.5 1013.4 1007.7 1012.1 1013.4 1027.5 1028.0 1036.1 1036.1 DAY 8 17 27 6 19 9 9 27 10 24 25 29 1977-2005 1039.0 1036.9 1042.1 1034.2 1030.2 1020.0 1013.8 1020.0 1025.2 1035.4 1037.3 1041.0 1042.1 YEAR-DAY 99- 2 98-23 85- 6 5- 6 82-10 93-23 84- 4 92-31 81-24 84-22 83- 5 3-12 85- 6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 66 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF COMPUTED QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1009.0 1014.6 1011.3 1010.1 ****** DAY ** ** ** ** ** ** ** ** 17 13 6 19 1982 1009.7 ****** ****** ****** 1009.5 ****** ****** ****** ****** ****** ****** ****** ****** DAY 9 ** ** ** 21 ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1010.0 1013.0 ****** ****** DAY ** ** ** ** ** ** ** ** ** 5 13 ** 1984 ****** ****** ****** ****** 1008.9 1000.2 1004.0 1000.4 1010.2 1007.6 1010.4 1019.2 ****** DAY ** ** ** ** 1 21 27 16 9 18 12 15 1985 1013.8 999.0 1004.9 1005.6 1007.9 1000.9 999.6 1002.7 1003.3 1007.5 1013.5 997.7 997.7 DAY 19 6 24 3 22 21 20 8 7 11 11 19 1986 1004.1 1009.1 1012.4 1005.9 1000.8 999.5 1002.0 1003.7 1008.2 ****** 1014.2 ****** ****** DAY 20 26 10 11 3 18 10 15 26 ** 30 ** 1987 1008.1 ****** 998.5 998.6 1002.0 1001.7 ****** ****** ****** ****** ****** ****** ****** DAY 27 ** 20 20 23 19 ** ** ** ** ** ** 1988 1006.6 1006.2 995.3 1004.8 1000.6 994.0 998.6 998.5 1003.1 1006.3 1005.7 1000.2 994.0 DAY 29 2 5 23 29 23 16 30 5 31 20 26 1989 1011.6 1008.5 1000.2 1005.6 1001.1 998.9 ****** ****** 1001.1 ****** 1008.9 1008.8 ****** DAY 3 23 16 29 7 11 ** ** 12 ** 20 5 1990 1011.2 997.9 1008.8 1001.4 996.3 995.4 998.2 1000.2 1003.0 1009.3 1006.1 1010.6 995.4 DAY 18 16 25 16 13 27 28 8 14 26 1 18 1991 1009.2 1008.2 999.3 995.9 996.4 998.2 991.1 997.4 1002.2 1011.1 1008.9 1005.9 991.1 DAY 5 4 7 5 17 12 8 6 20 5 5 10 1992 1003.7 1003.9 998.4 1004.0 1004.3 998.3 999.6 1002.1 1005.8 1009.2 1006.0 1012.6 998.3 DAY 3 25 31 15 19 28 10 1 18 11 26 14 1993 1009.4 1008.0 1001.7 1001.9 1006.1 1000.6 1000.9 1000.5 1001.0 1009.5 1006.8 1014.7 1000.5 DAY 29 3 22 12 23 18 25 13 14 1 10 5 1994 1006.5 1006.1 1006.2 1002.4 1001.3 997.5 996.5 997.7 1006.9 1011.2 1001.3 994.9 994.9 DAY 17 1 8 2 1 16 31 2 1 15 26 4 1995 1009.3 1008.3 996.2 1002.1 1005.4 995.5 992.8 996.9 1002.9 1006.7 1002.6 1014.6 992.8 DAY 17 9 26 20 7 30 16 23 19 4 26 22 1996 1005.4 1003.9 1002.5 1002.2 1003.7 1000.2 1000.7 1000.1 995.6 1003.6 1015.9 1007.5 995.6 DAY 7 10 26 19 30 2 7 9 9 27 2 30 1997 1006.4 1008.8 1001.8 997.7 997.7 1000.1 997.2 997.5 998.4 1005.4 1008.4 1004.8 997.2 DAY 16 23 26 10 5 23 16 15 2 7 5 10 1998 1007.5 1003.9 995.1 999.9 997.7 1002.6 991.4 1002.8 1001.9 1002.4 1009.7 1010.8 991.4 DAY 13 8 30 21 22 28 6 23 3 2 11 21 1999 1008.8 995.2 1005.5 1002.6 1002.6 994.5 998.6 999.9 1001.6 1008.4 1009.4 1011.3 994.5 DAY 10 21 21 14 14 25 23 7 16 13 20 16 2000 1002.9 1006.5 1001.2 1002.8 997.7 1001.2 998.8 998.9 999.1 1008.9 1016.1 1011.9 997.7 DAY 21 7 25 10 27 6 11 31 1 1 6 16 2001 1015.8 1000.3 1000.9 1001.2 999.0 994.5 997.4 997.9 1000.8 1005.9 1003.7 1010.0 994.5 DAY 1 21 25 13 9 7 10 31 5 25 18 20 2002 1002.5 1002.5 997.8 998.0 1001.8 994.4 996.9 995.7 1004.3 1007.0 1007.2 1002.1 994.4 DAY 8 27 29 4 30 20 25 17 11 22 13 22 2003 1001.9 1004.1 1001.3 1003.6 1004.3 1000.4 995.7 1003.7 1001.4 1003.4 1009.9 1008.2 995.7 DAY 29 19 27 27 30 18 9 27 7 26 1 7 2004 1004.4 1000.7 1002.1 998.5 996.6 999.3 1001.0 994.1 1003.8 1007.9 1004.0 1009.1 994.1 DAY 24 15 31 24 13 18 11 13 11 22 24 10 2005 1007.3 1003.2 1002.3 1005.0 1000.4 993.4 994.4 997.4 1002.1 1004.8 1010.3 1003.5 993.4 DAY 25 2 24 30 6 21 6 8 5 21 6 24 1977-2005 1001.9 995.2 995.1 995.9 996.3 993.4 991.1 994.1 995.6 1002.4 1001.3 994.9 991.1 YEAR-DAY 3-29 99-21 98-30 91- 5 90-13 5-21 91- 8 4-13 96- 9 98- 2 94-26 94- 4 91- 8 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 67 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFE PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 899.4 ****** 895.1 891.9 890.7 893.4 897.8 898.6 897.7 897.2 ****** 1978 897.1 896.7 894.5 891.4 893.5 892.0 893.2 893.3 895.2 899.4 899.8 895.3 895.1 1979 897.6 893.9 894.8 894.4 896.3 895.1 892.5 893.8 898.3 898.2 901.0 895.5 895.9 1980 895.1 896.1 894.0 892.6 894.6 893.2 892.5 893.3 896.0 897.3 897.7 896.7 894.9 1981 895.7 894.2 893.0 893.8 894.0 894.2 892.4 894.1 898.0 900.4 897.3 897.3 895.4 1982 895.0 894.6 894.8 895.2 898.0 894.4 891.5 893.6 897.7 897.8 899.6 898.4 895.9 1983 896.1 895.0 895.5 894.7 894.0 894.4 891.5 892.7 895.9 899.3 899.5 899.2 895.7 1984 897.1 900.4 894.6 892.9 893.4 893.6 891.9 891.7 897.1 899.8 898.2 901.4 896.0 1985 896.1 890.1 898.1 893.5 894.9 892.4 889.4 891.6 892.7 894.8 896.1 893.3 893.6 1986 892.9 891.4 894.1 892.8 890.9 888.2 890.5 891.8 894.7 896.2 894.8 893.3 892.6 1987 893.3 893.7 888.0 891.9 892.2 890.6 890.1 890.4 894.0 897.8 896.7 893.9 892.7 1988 892.9 892.6 888.5 891.7 891.6 888.3 888.1 889.4 892.8 895.7 894.3 891.7 891.5 1989 892.8 895.1 890.0 893.3 892.8 889.7 890.1 890.0 891.5 895.3 894.9 892.3 892.3 1990 893.8 891.1 894.5 889.9 891.6 889.1 889.1 890.8 891.7 895.5 895.7 894.7 892.3 1991 893.3 893.7 891.6 891.4 888.6 889.9 887.9 889.6 893.5 895.8 896.9 891.7 892.0 1992 891.9 888.9 891.5 889.9 892.1 888.7 889.1 892.0 894.1 894.7 894.9 893.0 891.7 1993 893.6 893.1 891.7 890.7 890.7 889.6 890.2 891.5 892.5 898.4 895.3 896.0 892.8 1994 893.0 891.5 891.7 892.8 891.0 888.5 887.9 889.2 896.0 897.0 892.5 893.9 892.1 1995 894.2 892.9 891.9 890.2 892.6 889.2 886.9 889.2 891.6 895.8 893.5 895.8 892.0 1996 895.2 891.9 890.3 891.7 892.1 890.4 890.6 890.6 890.1 894.6 898.5 895.1 892.6 1997 892.0 892.9 889.1 889.4 892.2 888.7 887.5 889.7 893.3 893.7 895.9 892.9 891.4 1998 891.1 892.1 890.1 890.9 892.0 891.7 888.5 891.1 892.4 895.8 895.8 897.1 892.4 1999 893.7 890.7 891.0 892.2 892.0 889.5 888.5 889.7 891.8 894.3 894.6 897.1 892.1 2000 892.1 892.3 891.2 890.7 890.1 889.9 889.9 890.5 891.8 895.9 897.6 894.2 892.2 2001 895.8 891.8 891.6 891.2 889.7 889.0 889.2 890.7 892.1 894.6 893.6 894.6 892.0 2002 893.5 892.2 891.1 888.9 890.5 889.0 889.9 889.0 893.0 894.5 895.9 893.5 891.7 2003 892.9 889.4 891.0 891.7 892.8 889.6 887.4 890.8 892.5 893.2 895.2 895.6 891.9 2004 889.9 891.3 894.1 891.1 889.1 889.9 889.6 889.2 894.1 896.5 893.2 893.7 891.8 2005 891.7 891.5 889.7 893.6 891.3 889.6 888.8 889.6 892.1 895.7 896.3 895.6 892.1 MEAN 893.9 892.9 892.5 891.9 892.4 890.7 889.8 891.1 893.9 896.4 896.3 895.2 893.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 68 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFE PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 909.0 ****** 900.0 895.2 894.8 898.4 903.9 906.3 904.6 908.2 ****** DAY ** ** 10 ** 29 6 21 23 30 24 27 13 1978 907.5 908.0 901.6 899.5 901.5 903.5 899.2 897.8 901.5 905.2 906.9 909.5 909.5 DAY 13 6 20 12 3 8 8 21 28 10 27 24 1979 908.9 901.7 903.0 904.9 903.1 901.9 897.2 899.7 902.6 906.6 908.5 903.7 908.9 DAY 18 13 5 27 25 11 20 29 23 9 11 22 1980 901.0 903.1 901.7 900.9 902.7 899.3 898.5 899.3 902.7 902.0 905.4 904.4 905.4 DAY 10 1 28 2 16 1 18 31 26 7 3 17 1981 905.5 899.9 903.1 900.9 902.5 900.5 896.9 898.2 903.4 906.5 904.9 903.7 906.5 DAY 9 28 8 10 21 10 24 24 27 29 16 2 1982 903.4 901.7 901.1 905.6 906.6 899.6 897.0 898.0 902.9 907.7 904.8 906.9 907.7 DAY 22 20 5 4 10 7 8 11 20 25 18 10 1983 909.7 902.4 902.4 900.1 900.9 900.7 898.5 897.3 900.0 905.1 912.8 908.3 912.8 DAY 8 10 15 29 16 1 1 18 28 29 26 4 1984 904.7 908.4 902.0 900.2 899.2 897.5 895.6 895.7 900.6 907.8 906.7 909.2 909.2 DAY 5 19 29 14 12 13 3 30 22 22 27 19 1985 902.0 899.8 909.3 906.9 902.5 897.2 893.2 895.2 899.9 900.1 901.9 901.6 909.3 DAY 28 24 5 17 12 10 1 25 22 6 1 9 1986 900.9 897.8 901.5 901.1 897.9 893.7 894.6 894.5 898.3 902.1 902.7 905.7 905.7 DAY 29 22 3 5 19 3 3 24 22 15 16 7 1987 904.3 904.5 897.9 898.5 897.4 894.4 893.5 895.8 899.8 904.0 907.7 906.1 907.7 DAY 21 1 23 30 1 6 24 8 24 16 30 1 1988 902.6 903.1 900.1 901.7 898.5 893.1 891.7 895.3 898.0 902.4 903.1 899.2 903.1 DAY 3 7 17 9 5 1 31 21 25 17 6 5 1989 903.0 902.9 895.7 897.5 897.1 893.6 896.0 896.1 900.9 902.7 901.6 895.9 903.0 DAY 22 8 8 11 21 2 10 19 23 24 8 28 1990 900.8 901.0 905.2 896.4 898.9 893.8 892.9 894.7 896.7 904.7 903.8 902.6 905.2 DAY 27 8 17 24 16 5 17 29 16 19 14 29 1991 900.8 901.9 896.8 898.8 894.8 895.8 892.1 893.3 898.9 899.7 900.7 901.3 901.9 DAY 12 15 12 29 25 17 12 22 16 13 27 17 1992 903.0 897.7 899.2 894.2 898.1 893.6 894.4 898.2 898.5 899.8 904.8 899.1 904.8 DAY 10 16 13 8 2 7 13 31 29 30 4 1 1993 904.7 901.1 899.3 898.5 898.4 898.2 894.4 895.3 899.8 903.6 902.6 901.2 904.7 DAY 6 9 16 1 9 23 27 29 23 20 22 27 1994 903.0 902.9 898.4 903.4 897.2 892.1 891.0 892.5 901.8 901.5 899.1 902.1 903.4 DAY 10 18 1 5 19 9 2 8 23 24 2 22 1995 903.5 898.7 900.1 897.4 897.9 893.9 890.6 894.3 897.6 904.8 901.9 902.6 904.8 DAY 7 12 3 7 26 1 4 25 22 18 16 11 1996 905.0 898.4 894.4 900.3 896.6 895.5 896.3 898.3 896.7 904.9 907.2 903.3 907.2 DAY 10 13 16 5 7 12 3 30 25 2 18 8 1997 901.4 899.1 903.6 895.3 898.3 893.0 892.0 893.9 898.6 899.7 906.7 899.4 906.7 DAY 24 21 11 14 12 8 19 24 19 8 8 28 1998 899.2 904.9 898.9 901.0 898.7 895.7 894.0 894.7 897.5 904.9 903.0 903.7 904.9 DAY 4 23 26 12 9 6 15 25 27 10 21 29 1999 907.3 899.3 898.0 898.7 896.5 896.5 892.6 896.1 896.5 899.3 901.3 904.8 907.3 DAY 2 12 19 23 2 17 19 20 5 26 30 1 2000 900.0 901.5 901.2 896.4 897.4 895.6 894.3 894.9 896.0 900.7 907.3 901.0 907.3 DAY 31 29 27 2 5 16 30 23 29 16 17 4 2001 900.2 903.6 901.0 900.0 894.8 895.5 892.4 896.3 898.4 902.1 899.4 900.7 903.6 DAY 26 10 2 1 18 2 29 5 22 10 20 10 2002 899.8 902.7 903.5 896.9 896.7 896.0 894.6 894.7 898.1 899.4 903.0 905.4 905.4 DAY 26 19 11 1 17 25 3 31 21 11 18 3 2003 899.1 897.9 900.4 897.4 900.6 894.7 893.4 894.0 899.3 898.4 903.7 906.4 906.4 DAY 19 13 3 30 2 7 4 4 27 15 26 12 2004 897.4 895.9 905.0 898.2 896.9 897.7 895.2 892.8 898.3 902.2 899.0 903.4 905.0 DAY 11 13 9 11 22 6 6 18 21 15 13 3 2005 899.7 900.5 895.3 904.5 897.1 893.7 892.4 894.4 896.2 901.5 901.1 904.7 904.7 DAY 8 17 16 6 19 24 9 27 9 24 25 29 1977-2005 909.7 908.4 909.3 906.9 906.6 903.5 899.2 899.7 903.9 907.8 912.8 909.5 912.8 YEAR-DAY 83- 8 84-19 85- 5 85-17 82-10 78- 8 78- 8 79-29 77-30 84-22 83-26 78-24 83-26 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 69 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFE PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 891.8 ****** 889.6 887.9 887.1 885.6 893.1 889.9 888.2 890.2 ****** DAY ** ** 4 ** 25 22 27 17 12 5 18 10 1978 884.0 887.3 885.0 885.3 884.6 882.8 885.4 888.9 889.9 890.5 889.2 883.8 882.8 DAY 21 22 12 10 30 22 1 14 2 1 1 16 1979 887.9 885.1 886.2 888.9 888.5 888.9 886.2 887.8 893.0 892.9 886.5 885.9 885.1 DAY 6 12 28 13 17 23 6 14 6 27 29 1 1980 886.2 887.5 878.8 883.0 890.3 887.9 888.9 888.4 890.4 891.8 890.4 884.8 878.8 DAY 7 12 19 16 10 17 3 20 21 5 10 12 1981 886.7 884.0 879.7 883.4 882.4 887.1 888.6 890.2 892.8 894.4 891.3 889.3 879.7 DAY 3 1 13 30 1 5 2 13 17 15 13 19 1982 884.2 884.2 886.1 886.2 890.9 890.0 885.8 885.7 892.8 891.0 891.5 890.3 884.2 DAY 29 1 3 19 15 18 31 1 3 1 8 28 1983 885.1 883.6 887.6 890.5 888.9 889.8 884.5 889.5 891.4 892.9 892.3 887.0 883.6 DAY 25 18 6 3 4 22 27 4 8 4 12 12 1984 891.4 884.4 885.5 885.2 885.7 886.4 888.3 887.8 892.2 888.6 888.9 891.0 884.4 DAY 17 8 15 10 30 21 16 8 8 18 12 14 1985 888.5 877.7 882.6 888.2 889.3 886.5 884.0 887.4 887.2 888.1 892.2 876.4 876.4 DAY 19 6 24 3 1 21 20 8 7 11 8 19 1986 880.5 885.7 886.8 885.5 883.2 884.0 886.7 888.0 890.7 891.4 884.5 883.4 880.5 DAY 20 16 10 11 3 13 20 15 6 5 9 28 1987 883.7 885.4 877.5 883.1 885.6 888.1 884.8 886.2 889.2 890.8 886.1 883.8 877.5 DAY 7 11 14 20 23 5 7 18 6 9 7 24 1988 882.7 884.6 877.3 885.2 883.7 881.6 884.9 884.2 887.4 888.5 884.4 876.3 876.3 DAY 29 1 5 30 1 23 1 29 5 31 20 26 1989 882.5 883.1 878.2 888.5 884.6 884.0 885.9 884.0 885.1 885.8 888.2 883.6 878.2 DAY 17 23 30 29 7 11 7 1 14 2 25 5 1990 886.4 877.2 888.6 883.2 881.0 882.4 886.3 885.9 887.7 889.1 885.9 888.3 877.2 DAY 5 16 5 16 13 27 27 7 5 26 1 18 1991 883.3 884.9 878.0 879.6 880.1 882.8 881.2 884.1 887.4 891.7 889.2 884.6 878.0 DAY 5 4 7 5 17 11 8 6 20 4 5 26 1992 880.2 883.2 877.9 884.4 886.2 883.1 884.6 887.2 889.6 890.0 885.1 888.1 877.9 DAY 1 8 31 15 19 28 10 1 18 11 26 28 1993 881.9 885.8 880.4 885.7 886.3 885.9 886.9 886.4 886.3 890.5 884.1 888.6 880.4 DAY 9 3 22 14 14 17 25 13 14 1 14 5 1994 884.1 882.7 884.0 882.4 883.0 883.5 883.7 884.3 891.7 890.6 877.9 875.6 875.6 DAY 17 12 15 2 1 16 31 2 1 15 26 4 1995 886.4 885.5 879.6 885.2 887.8 881.7 880.9 885.3 886.3 888.9 880.5 889.8 879.6 DAY 17 9 26 18 7 30 16 3 19 4 26 22 1996 885.9 883.2 881.8 882.1 887.3 886.0 886.6 885.2 883.3 884.3 892.3 886.2 881.8 DAY 7 6 26 13 30 19 7 8 22 27 29 25 1997 881.6 886.1 881.2 880.3 883.6 885.3 882.6 884.3 884.1 889.4 889.5 883.8 880.3 DAY 16 23 25 10 5 30 16 5 2 7 5 10 1998 879.8 878.1 877.8 882.7 881.2 888.4 879.5 887.5 887.7 886.9 890.0 886.8 877.8 DAY 13 14 30 21 22 24 6 13 24 2 9 21 1999 886.6 878.6 884.1 884.7 885.5 879.0 884.8 886.8 886.4 891.1 887.5 888.7 878.6 DAY 10 21 21 14 14 25 22 7 13 31 25 14 2000 879.6 882.2 882.1 886.7 884.3 885.3 884.4 885.1 885.9 890.4 891.8 886.2 879.6 DAY 21 7 25 10 27 26 11 31 1 1 22 16 2001 891.3 878.2 882.2 885.0 881.9 881.5 883.8 883.9 886.5 887.4 883.6 887.4 878.2 DAY 1 21 25 13 9 7 19 31 5 25 18 5 2002 883.1 881.7 881.2 877.2 886.2 881.8 883.5 882.7 888.7 888.0 886.7 880.7 877.2 DAY 8 27 21 4 12 20 25 17 11 22 12 22 2003 880.9 877.3 881.1 885.8 886.1 884.9 883.0 888.0 885.1 887.3 888.1 886.1 877.3 DAY 29 19 21 21 30 27 8 1 7 27 14 7 2004 882.3 882.3 886.3 882.0 881.1 885.9 883.7 882.8 888.3 889.5 884.8 885.7 881.1 DAY 14 15 31 17 13 18 11 4 6 22 24 10 2005 880.5 881.5 880.5 887.2 881.8 882.1 880.7 884.3 886.4 887.8 888.6 882.8 880.5 DAY 23 2 24 30 6 21 6 8 5 21 9 26 1977-2005 879.6 877.2 877.3 877.2 880.1 879.0 879.5 882.7 883.3 884.3 877.9 875.6 875.6 YEAR-DAY 0-21 90-16 88- 5 2- 4 91-17 99-25 98- 6 2-17 96-22 96-27 94-26 94- 4 94- 4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 70 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QNH PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1024.7 ****** 1019.9 1016.3 1015.0 1018.0 1022.9 1023.7 1022.8 1022.2 ****** 1978 1022.1 1021.7 1019.2 1015.7 1018.1 1016.5 1017.8 1017.9 1020.0 1024.6 1025.1 1020.1 1019.9 1979 1022.6 1018.6 1019.5 1019.1 1021.2 1019.9 1017.0 1018.5 1023.4 1023.3 1026.4 1020.4 1020.8 1980 1019.9 1021.0 1018.6 1017.1 1019.3 1017.8 1017.0 1017.9 1020.9 1022.3 1022.7 1021.6 1019.7 1981 1020.6 1018.9 1017.5 1018.5 1018.7 1018.9 1016.9 1018.7 1023.2 1025.8 1022.3 1022.3 1020.2 1982 1019.8 1019.4 1019.6 1020.0 1023.1 1019.1 1015.9 1018.3 1022.7 1022.9 1024.9 1023.5 1020.8 1983 1021.1 1019.8 1020.4 1019.5 1018.7 1019.1 1015.8 1017.2 1020.8 1024.5 1024.8 1024.5 1020.5 1984 1022.1 1025.7 1019.3 1017.5 1018.0 1018.2 1016.3 1016.2 1022.1 1025.1 1023.4 1026.9 1020.9 1985 1021.0 1014.3 1023.2 1018.1 1019.7 1016.9 1013.6 1016.0 1017.2 1019.6 1021.1 1017.9 1018.2 1986 1017.5 1015.8 1018.8 1017.3 1015.3 1012.3 1014.8 1016.2 1019.5 1021.1 1019.6 1017.9 1017.2 1987 1017.9 1018.3 1012.0 1016.3 1016.7 1014.9 1014.4 1014.6 1018.7 1022.9 1021.7 1018.5 1017.2 1988 1017.5 1017.2 1012.5 1016.2 1016.0 1012.3 1012.1 1013.6 1017.4 1020.6 1019.1 1016.2 1015.9 1989 1017.3 1019.8 1014.2 1017.9 1017.4 1013.8 1014.3 1014.2 1015.9 1020.1 1019.7 1016.8 1016.8 1990 1018.4 1015.5 1019.3 1014.1 1016.0 1013.2 1013.2 1015.1 1016.1 1020.3 1020.5 1019.5 1016.8 1991 1017.9 1018.4 1015.9 1015.7 1012.7 1014.1 1011.9 1013.8 1018.1 1020.7 1021.9 1016.2 1016.4 1992 1016.3 1013.0 1015.9 1014.1 1016.6 1012.7 1013.3 1016.5 1018.8 1019.5 1019.7 1017.6 1016.2 1993 1018.2 1017.7 1016.1 1015.0 1015.0 1013.8 1014.5 1015.9 1017.0 1023.6 1020.1 1020.9 1017.3 1994 1017.5 1015.9 1016.2 1017.3 1015.3 1012.6 1011.9 1013.3 1020.8 1022.0 1017.0 1018.6 1016.5 1995 1018.8 1017.5 1016.3 1014.4 1017.1 1013.3 1010.8 1013.3 1016.0 1020.7 1018.2 1020.7 1016.4 1996 1020.0 1016.3 1014.6 1016.1 1016.5 1014.7 1014.8 1014.9 1014.4 1019.4 1023.7 1019.9 1017.1 1997 1016.5 1017.5 1013.2 1013.5 1016.7 1012.8 1011.4 1013.9 1017.9 1018.3 1020.8 1017.5 1015.8 1998 1015.4 1016.6 1014.3 1015.2 1016.5 1016.1 1012.6 1015.5 1016.9 1020.7 1020.7 1022.1 1016.9 1999 1018.4 1015.0 1015.3 1016.7 1016.5 1013.7 1012.5 1013.9 1016.2 1019.0 1019.3 1022.2 1016.6 2000 1016.6 1016.8 1015.6 1015.0 1014.3 1014.1 1014.1 1014.8 1016.2 1020.8 1022.6 1018.9 1016.6 2001 1020.6 1016.3 1016.0 1015.5 1013.9 1013.2 1013.4 1015.0 1016.6 1019.3 1018.2 1019.4 1016.5 2002 1018.1 1016.7 1015.5 1013.0 1014.8 1013.1 1014.1 1013.1 1017.6 1019.3 1020.8 1018.1 1016.2 2003 1017.5 1013.6 1015.3 1016.1 1017.3 1013.8 1011.4 1015.2 1017.1 1017.8 1020.0 1020.4 1016.3 2004 1014.1 1015.7 1018.8 1015.4 1013.2 1014.1 1013.7 1013.3 1018.7 1021.4 1017.8 1018.4 1016.2 2005 1016.1 1015.9 1013.9 1018.2 1015.7 1013.8 1012.9 1013.8 1016.5 1020.5 1021.2 1020.4 1016.6 MEAN 1018.6 1017.5 1017.0 1016.4 1016.9 1015.0 1014.0 1015.5 1018.6 1021.4 1021.2 1020.0 1017.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 71 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QNH PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1035.3 ****** 1025.3 1020.0 1019.6 1023.6 1029.7 1032.3 1030.5 1034.5 ****** DAY ** ** 10 ** 29 6 21 23 30 24 27 13 1978 1033.7 1034.2 1027.1 1024.8 1027.0 1029.2 1024.5 1022.9 1027.0 1031.1 1033.0 1035.9 1035.9 DAY 13 6 20 12 3 8 8 21 28 10 27 24 1979 1035.2 1027.2 1028.7 1030.8 1028.8 1027.5 1022.2 1025.0 1028.2 1032.7 1034.8 1029.5 1035.2 DAY 18 13 5 27 25 11 20 29 23 9 11 22 1980 1026.5 1028.8 1027.2 1026.3 1028.3 1024.6 1023.7 1024.6 1028.3 1027.6 1031.3 1030.2 1031.3 DAY 10 1 28 2 16 1 18 31 26 7 3 17 1981 1031.5 1025.2 1028.8 1026.3 1028.1 1025.9 1021.9 1023.3 1029.1 1032.6 1030.8 1029.5 1032.6 DAY 9 28 8 10 21 10 24 24 27 29 16 2 1982 1029.1 1027.2 1026.6 1031.6 1032.7 1024.9 1022.0 1023.1 1028.6 1033.9 1030.7 1033.0 1033.9 DAY 22 20 5 4 10 7 8 11 20 25 18 10 1983 1036.1 1028.0 1028.0 1025.5 1026.3 1026.1 1023.7 1022.3 1025.3 1031.0 1039.6 1034.6 1039.6 DAY 8 10 15 29 16 1 1 18 28 29 26 4 1984 1030.6 1034.7 1027.6 1025.6 1024.5 1022.6 1020.5 1020.6 1026.0 1034.0 1032.8 1035.6 1035.6 DAY 5 19 29 14 12 13 3 30 22 22 27 19 1985 1027.6 1025.1 1035.7 1033.0 1028.1 1022.2 1017.8 1020.0 1025.2 1025.5 1027.5 1027.1 1035.7 DAY 28 24 5 17 12 10 1 25 22 6 1 9 1986 1026.3 1022.9 1027.0 1026.6 1023.0 1018.3 1019.3 1019.2 1023.5 1027.7 1028.3 1031.7 1031.7 DAY 29 22 3 5 19 3 3 24 22 15 16 7 1987 1030.1 1030.3 1023.0 1023.7 1022.5 1019.1 1018.1 1020.7 1025.1 1029.8 1033.9 1032.1 1033.9 DAY 21 1 23 30 1 6 24 8 24 16 30 1 1988 1028.2 1028.8 1025.5 1027.2 1023.7 1017.7 1016.1 1020.1 1023.1 1028.0 1028.8 1024.5 1028.8 DAY 3 7 17 9 5 1 31 21 25 17 6 5 1989 1028.7 1028.6 1020.6 1022.6 1022.1 1018.2 1020.9 1021.0 1026.3 1028.3 1027.1 1020.8 1028.7 DAY 22 8 8 11 21 2 10 19 23 24 8 28 1990 1026.2 1026.5 1031.1 1021.3 1024.1 1018.4 1017.4 1019.4 1021.7 1030.6 1029.6 1028.2 1031.1 DAY 27 8 17 24 16 5 17 29 16 19 14 29 1991 1026.2 1027.5 1021.8 1024.0 1019.6 1020.7 1016.6 1017.9 1024.1 1025.0 1026.1 1026.8 1027.5 DAY 12 15 12 29 25 17 12 22 16 13 27 17 1992 1028.7 1022.8 1024.5 1018.9 1023.2 1018.2 1019.1 1023.3 1023.7 1025.1 1030.7 1024.3 1030.7 DAY 10 16 13 8 2 7 13 31 29 30 4 1 1993 1030.6 1026.6 1024.6 1023.7 1023.6 1023.3 1019.1 1020.1 1025.1 1029.3 1028.2 1026.7 1030.6 DAY 6 9 16 1 9 23 27 29 23 20 22 27 1994 1028.7 1028.6 1023.6 1029.1 1022.2 1016.6 1015.3 1017.0 1027.3 1027.0 1024.3 1027.7 1029.1 DAY 10 18 1 5 19 9 2 8 23 24 2 22 1995 1029.2 1023.9 1025.5 1022.5 1023.0 1018.6 1014.9 1019.0 1022.7 1030.7 1027.5 1028.2 1030.7 DAY 7 12 3 7 26 1 4 25 22 18 16 11 1996 1030.9 1023.6 1019.1 1025.7 1021.6 1020.3 1021.2 1023.5 1021.7 1030.8 1033.3 1029.0 1033.3 DAY 10 13 16 5 7 12 3 30 25 2 18 8 1997 1026.9 1024.3 1029.3 1020.1 1023.5 1017.6 1016.4 1018.6 1023.8 1025.0 1032.8 1024.7 1032.8 DAY 24 21 11 14 12 8 19 24 19 8 8 28 1998 1024.5 1030.8 1024.1 1026.5 1023.9 1020.6 1018.7 1019.4 1022.6 1030.8 1028.7 1029.5 1030.8 DAY 4 23 26 12 9 6 15 25 27 10 21 29 1999 1033.5 1024.6 1023.1 1023.9 1021.5 1021.5 1017.1 1021.0 1021.5 1024.6 1026.8 1030.7 1033.5 DAY 2 12 19 23 2 17 19 20 5 26 30 1 2000 1025.3 1027.0 1026.7 1021.3 1022.5 1020.5 1019.0 1019.7 1020.9 1026.1 1033.5 1026.5 1033.5 DAY 31 29 27 2 5 16 30 23 29 16 17 4 2001 1025.6 1029.3 1026.5 1025.3 1019.6 1020.3 1016.9 1021.2 1023.6 1027.7 1024.7 1026.1 1029.3 DAY 26 10 2 1 18 2 29 5 22 10 20 10 2002 1025.1 1028.3 1029.2 1021.9 1021.7 1020.9 1019.3 1019.4 1023.2 1024.7 1028.7 1031.3 1031.3 DAY 26 19 11 1 17 25 3 31 21 11 18 3 2003 1024.3 1023.0 1025.8 1022.5 1026.0 1019.4 1018.0 1018.7 1024.6 1023.6 1029.5 1032.5 1032.5 DAY 19 13 3 30 2 7 4 4 27 15 26 12 2004 1022.5 1020.8 1030.9 1023.3 1021.9 1022.8 1020.0 1017.3 1023.5 1027.8 1024.2 1029.1 1030.9 DAY 11 13 9 11 22 6 6 18 21 15 13 3 2005 1025.0 1025.9 1020.1 1030.3 1022.1 1018.3 1016.9 1019.1 1021.1 1027.0 1026.6 1030.6 1030.6 DAY 8 17 16 6 19 24 9 27 9 24 25 29 1977-2005 1036.1 1034.7 1035.7 1033.0 1032.7 1029.2 1024.5 1025.0 1029.7 1034.0 1039.6 1035.9 1039.6 YEAR-DAY 83- 8 84-19 85- 5 85-17 82-10 78- 8 78- 8 79-29 77-30 84-22 83-26 78-24 83-26 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 72 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QNH PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1016.2 ****** 1013.8 1011.9 1011.0 1009.3 1017.7 1014.1 1012.2 1014.4 ****** DAY ** ** 4 ** 25 22 27 17 12 5 18 10 1978 1007.6 1011.2 1008.7 1009.0 1008.2 1006.2 1009.1 1013.0 1014.1 1014.8 1013.3 1007.3 1006.2 DAY 21 22 12 10 30 22 1 14 2 1 1 16 1979 1011.9 1008.8 1010.0 1013.0 1012.6 1013.0 1010.0 1011.8 1017.6 1017.4 1010.3 1009.7 1008.8 DAY 6 12 28 13 17 23 6 14 6 27 29 1 1980 1010.0 1011.4 1001.8 1006.4 1014.6 1011.9 1013.0 1012.4 1014.7 1016.2 1014.7 1008.4 1001.8 DAY 7 12 19 16 10 17 3 20 21 5 10 12 1981 1010.6 1007.6 1002.8 1006.9 1005.8 1011.0 1012.7 1014.4 1017.3 1019.1 1015.7 1013.4 1002.8 DAY 3 1 13 30 1 5 2 13 17 15 13 19 1982 1007.8 1007.8 1009.9 1010.0 1015.2 1014.2 1009.6 1009.4 1017.3 1015.3 1015.9 1014.6 1007.8 DAY 29 1 3 19 15 18 31 1 3 1 8 28 1983 1008.8 1007.1 1011.6 1014.8 1013.0 1014.0 1008.1 1013.7 1015.8 1017.4 1016.8 1010.9 1007.1 DAY 25 18 6 3 4 22 27 4 8 4 12 12 1984 1015.8 1008.0 1009.2 1008.9 1009.4 1010.2 1012.3 1011.8 1016.7 1012.7 1013.0 1015.3 1008.0 DAY 17 8 15 10 30 21 16 8 8 18 12 14 1985 1012.6 1000.5 1006.0 1012.2 1013.4 1010.3 1007.6 1011.3 1011.1 1012.1 1016.7 999.1 999.1 DAY 19 6 24 3 1 21 20 8 7 11 8 19 1986 1003.7 1009.4 1010.7 1009.2 1006.7 1007.6 1010.6 1012.0 1015.0 1015.8 1008.1 1006.9 1003.7 DAY 20 16 10 11 3 13 20 15 6 5 9 28 1987 1007.2 1009.1 1000.3 1006.6 1009.3 1012.1 1008.4 1010.0 1013.3 1015.1 1009.9 1007.3 1000.3 DAY 7 11 14 20 23 5 7 18 6 9 7 24 1988 1006.1 1008.2 1000.1 1008.9 1007.2 1004.9 1008.6 1007.8 1011.3 1012.6 1008.0 999.0 999.0 DAY 29 1 5 30 1 23 1 29 5 31 20 26 1989 1005.9 1006.6 1001.1 1012.6 1008.2 1007.6 1009.7 1007.6 1008.8 1009.6 1012.2 1007.1 1001.1 DAY 17 23 30 29 7 11 7 1 14 2 25 5 1990 1010.2 1000.0 1012.7 1006.7 1004.2 1005.8 1010.1 1009.7 1011.7 1013.2 1009.7 1012.3 1000.0 DAY 5 16 5 16 13 27 27 7 5 26 1 18 1991 1006.8 1008.6 1000.9 1002.7 1003.2 1006.2 1004.4 1007.7 1011.3 1016.1 1013.3 1008.2 1000.9 DAY 5 4 7 5 17 11 8 6 20 4 5 26 1992 1003.3 1006.7 1000.8 1008.0 1010.0 1006.6 1008.2 1011.1 1013.8 1014.2 1008.8 1012.1 1000.8 DAY 1 8 31 15 19 28 10 1 18 11 26 28 1993 1005.2 1009.6 1003.5 1009.4 1010.1 1009.7 1010.8 1010.2 1010.1 1014.8 1007.7 1012.7 1003.5 DAY 9 3 22 14 14 17 25 13 14 1 14 5 1994 1007.7 1006.1 1007.6 1005.8 1006.4 1007.0 1007.2 1007.9 1016.1 1014.9 1000.8 998.2 998.2 DAY 17 12 15 2 1 16 31 2 1 15 26 4 1995 1010.2 1009.2 1002.7 1008.9 1011.8 1005.0 1004.1 1009.0 1010.1 1013.0 1003.7 1014.0 1002.7 DAY 17 9 26 18 7 30 16 3 19 4 26 22 1996 1009.7 1006.7 1005.1 1005.4 1011.2 1009.8 1010.4 1008.9 1006.8 1007.9 1016.8 1010.0 1005.1 DAY 7 6 26 13 30 19 7 8 22 27 29 25 1997 1004.9 1009.9 1004.4 1003.4 1007.1 1009.0 1006.0 1007.9 1007.7 1013.6 1013.7 1007.3 1003.4 DAY 16 23 25 10 5 30 16 5 2 7 5 10 1998 1002.9 1001.0 1000.7 1006.1 1004.4 1012.4 1002.6 1011.4 1011.7 1010.8 1014.2 1010.7 1000.7 DAY 13 14 30 21 22 24 6 13 24 2 9 21 1999 1010.4 1001.5 1007.7 1008.3 1009.2 1002.0 1008.4 1010.7 1010.2 1015.4 1011.4 1012.8 1001.5 DAY 10 21 21 14 14 25 22 7 13 31 25 14 2000 1002.7 1005.6 1005.4 1010.6 1007.9 1009.0 1008.0 1008.8 1009.7 1014.7 1016.2 1010.0 1002.7 DAY 21 7 25 10 27 26 11 31 1 1 22 16 2001 1015.7 1001.1 1005.6 1008.7 1005.2 1004.8 1007.3 1007.4 1010.3 1011.3 1007.1 1011.3 1001.1 DAY 1 21 25 13 9 7 19 31 5 25 18 5 2002 1006.6 1005.0 1004.4 1000.0 1010.0 1005.1 1007.0 1006.1 1012.8 1012.0 1010.6 1003.9 1000.0 DAY 8 27 21 4 12 20 25 17 11 22 12 22 2003 1004.1 1000.1 1004.3 1009.6 1009.9 1008.6 1006.4 1012.0 1008.8 1011.2 1012.1 1009.9 1000.1 DAY 29 19 21 21 30 27 8 1 7 27 14 7 2004 1005.7 1005.7 1010.1 1005.3 1004.3 1009.7 1007.2 1006.2 1012.3 1013.7 1008.4 1009.4 1004.3 DAY 14 15 31 17 13 18 11 4 6 22 24 10 2005 1003.7 1004.8 1003.7 1011.1 1005.1 1005.4 1003.9 1007.9 1010.2 1011.8 1012.7 1006.2 1003.7 DAY 23 2 24 30 6 21 6 8 5 21 9 26 1977-2005 1002.7 1000.0 1000.1 1000.0 1003.2 1002.0 1002.6 1006.1 1006.8 1007.9 1000.8 998.2 998.2 YEAR-DAY 0-21 90-16 88- 5 2- 4 91-17 99-25 98- 6 2-17 96-22 96-27 94-26 94- 4 94- 4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 73 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFF PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1015.1 1008.6 1006.9 1010.8 1017.5 1021.8 1023.3 1024.5 ****** 1978 1025.4 1024.4 1020.1 1013.0 1014.3 1010.6 1010.1 1011.1 1014.4 1022.3 1026.7 1021.0 1017.8 1979 1026.3 1020.7 1020.2 1016.0 1017.7 1013.3 1008.7 1011.9 1018.1 1020.0 1027.6 1022.2 1018.6 1980 1023.8 1025.6 1019.3 1013.5 1014.5 1010.9 1008.8 1010.5 1015.8 1021.0 1022.2 1023.8 1017.5 1981 1022.7 1020.7 1017.2 1016.6 1014.5 1012.9 1009.0 1011.1 1017.9 1023.8 1022.4 1024.4 1017.8 1982 1025.0 1023.7 1020.3 1016.1 1018.0 1012.2 1008.0 1011.3 1017.9 1021.1 1026.5 1027.5 1019.0 1983 1024.4 1022.1 1021.6 1017.1 1012.8 1011.8 1006.9 1009.3 1015.4 1022.9 1024.1 1026.8 1017.9 1984 1025.0 1030.5 1019.4 1014.8 1013.9 1011.2 1007.8 1007.8 1016.9 1023.6 1022.7 1031.7 1018.8 1985 1024.1 1015.7 1025.1 1015.1 1014.2 1009.0 ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.1 1022.2 1022.3 ****** 1987 1021.8 1022.0 1014.1 1016.6 1013.1 1009.3 1008.6 1008.5 1015.5 1024.4 1023.7 1021.8 1016.6 1988 1023.7 1022.1 1014.7 1015.6 1013.5 1006.4 1005.8 1008.2 1013.9 1020.2 1020.5 1019.3 1015.3 1989 1024.4 1027.5 1016.4 1017.2 1014.9 1008.1 1007.6 1008.2 1011.9 1019.0 1022.0 1020.0 1016.4 1990 1024.0 1020.3 1022.1 1013.8 1012.8 1007.4 1006.9 1009.4 1011.6 1020.1 1022.3 1024.9 1016.3 1991 1023.7 1023.4 1018.2 1014.7 1010.6 1009.3 1005.4 1008.0 1014.6 1020.2 1024.6 1020.1 1016.1 1992 1022.0 1017.4 1020.0 1014.3 1015.6 1008.0 1007.0 1012.0 1016.0 1019.5 1021.0 1021.5 1016.2 1993 1024.8 1022.4 1015.9 1014.3 1012.4 1009.0 1008.5 1010.5 1013.1 1024.3 1023.3 1025.4 1017.0 1994 1022.1 1021.1 1018.2 1017.0 1012.2 1008.0 1006.1 1007.2 1018.7 1022.4 1017.9 1023.5 1016.2 1995 1023.2 1021.6 1018.9 1013.6 1014.0 1008.3 1004.1 1006.9 1012.5 1021.1 1019.9 1026.0 1015.8 1996 1025.7 1020.9 1017.6 1016.1 1013.4 1009.6 1007.7 1007.6 1008.4 1017.9 1025.7 1022.5 1016.1 1997 1019.7 1022.6 1015.3 1011.4 1012.4 1005.7 1003.0 1006.0 1012.9 1015.7 1021.9 1020.1 1013.9 1998 1019.9 1020.6 1015.6 1012.5 1013.6 1010.5 1006.4 1009.6 1013.3 1020.3 1021.6 1025.0 1015.7 1999 1023.0 1017.5 1017.8 1016.6 1013.7 1007.9 1006.8 1007.5 1012.5 1018.1 1021.8 1025.8 1015.8 2000 1021.1 1021.7 1018.1 1012.9 1010.4 1008.9 1007.9 1008.8 1010.4 1019.2 1024.5 1021.4 1015.4 2001 1024.7 1019.1 1016.6 1013.0 1008.6 1007.8 1005.9 1007.7 1011.5 1017.1 1018.4 1021.1 1014.3 2002 1021.1 1019.7 1015.7 1011.7 1011.1 1006.7 1006.5 1005.2 1012.0 1015.7 1021.3 1022.7 1014.1 2003 1021.1 1016.0 1017.2 1015.0 1014.3 1008.0 1003.4 1008.1 1012.3 1014.6 1021.5 1023.5 1014.6 2004 1016.6 1017.6 1019.6 1014.5 1008.8 1007.3 1006.7 1005.7 1013.7 1020.0 1017.5 1022.2 1014.2 2005 1020.1 1019.7 1014.4 1016.5 1011.6 1007.2 1004.4 1006.7 1010.8 1018.1 1022.8 1022.7 1014.6 MEAN 1022.9 1021.4 1018.1 1014.8 1013.3 1009.1 1006.8 1008.7 1014.1 1020.2 1022.5 1023.3 1016.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 74 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFF PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1020.8 1013.1 1012.3 1018.3 1023.9 1035.8 1031.8 1040.2 ****** DAY ** ** ** ** 2 6 21 20 30 24 27 13 1978 1039.2 1037.6 1029.8 1024.9 1028.5 1024.7 1018.6 1016.9 1025.7 1029.8 1036.7 1042.4 1042.4 DAY 13 6 20 12 3 8 8 21 28 11 6 24 1979 1041.5 1028.4 1033.4 1031.8 1026.9 1021.6 1013.9 1019.6 1025.1 1030.7 1037.6 1034.5 1041.5 DAY 19 19 5 27 25 11 20 29 23 9 19 22 1980 1031.8 1037.2 1029.8 1025.9 1024.4 1019.9 1015.8 1020.3 1024.5 1027.0 1031.3 1034.2 1037.2 DAY 16 3 28 2 16 1 18 31 26 30 3 17 1981 1035.0 1029.1 1028.9 1027.2 1024.2 1020.3 1015.2 1015.6 1026.4 1031.9 1032.3 1032.4 1035.0 DAY 9 28 1 3 22 10 24 3 23 29 16 2 1982 1037.4 1034.5 1030.4 1032.4 1030.5 1018.9 1017.8 1019.5 1025.7 1036.1 1035.0 1041.1 1041.1 DAY 22 11 5 4 10 7 8 16 21 25 18 10 1983 1042.2 1032.2 1029.5 1023.8 1021.0 1021.9 1016.8 1015.5 1022.5 1029.7 1041.4 1036.0 1042.2 DAY 8 23 19 30 16 1 1 18 28 29 26 4 1984 1034.4 1041.9 1028.6 1024.1 1021.6 1018.3 1012.5 1014.1 1021.6 1035.6 1034.0 1040.1 1041.9 DAY 5 19 10 5 12 13 4 31 30 22 27 19 1985 1032.1 1031.3 1042.1 1034.3 1023.8 1016.4 ****** ****** ****** ****** ****** ****** ****** DAY 25 24 5 17 12 10 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1028.6 1034.3 1037.6 ****** DAY ** ** ** ** ** ** ** ** ** 15 16 11 1987 1038.1 1034.0 1029.6 1026.1 1021.9 1017.2 1012.6 1015.1 1027.1 1033.3 1040.7 1039.0 1040.7 DAY 12 12 23 22 1 6 1 5 24 16 30 1 1988 1035.9 1039.9 1029.2 1031.4 1026.6 1013.5 1010.2 1014.8 1022.3 1029.8 1029.2 1029.6 1039.9 DAY 3 7 17 9 5 1 27 21 25 17 6 24 1989 1037.3 1039.6 1024.0 1023.8 1023.8 1016.1 1014.5 1017.9 1026.7 1030.9 1032.5 1025.3 1039.6 DAY 28 4 8 3 1 2 10 19 23 24 8 29 1990 1034.6 1033.8 1038.2 1024.2 1023.2 1015.2 1011.7 1014.7 1017.0 1034.8 1033.2 1037.9 1038.2 DAY 27 8 17 3 16 7 25 29 24 16 14 30 1991 1033.5 1036.2 1028.9 1024.2 1020.3 1015.8 1012.1 1013.1 1022.8 1025.4 1031.3 1032.9 1036.2 DAY 12 14 12 29 25 18 12 22 27 13 24 17 1992 1038.9 1030.4 1033.7 1020.9 1026.6 1014.7 1016.1 1022.9 1023.0 1026.6 1034.0 1030.4 1038.9 DAY 10 16 13 20 2 7 13 31 30 30 4 29 1993 1037.0 1033.5 1030.6 1024.1 1025.2 1022.0 1013.6 1015.4 1023.8 1030.6 1033.2 1030.1 1037.0 DAY 6 17 17 1 9 23 28 24 23 8 22 27 1994 1035.5 1034.9 1028.0 1035.8 1022.6 1012.6 1011.4 1012.1 1025.5 1027.9 1025.3 1035.6 1035.8 DAY 10 18 1 5 19 6 2 7 23 25 3 8 1995 1033.9 1028.8 1030.6 1025.6 1021.4 1015.3 1009.4 1013.5 1022.9 1035.4 1031.5 1036.4 1036.4 DAY 7 18 3 7 26 1 24 25 22 18 16 11 1996 1038.9 1032.8 1024.1 1030.6 1020.4 1017.5 1016.2 1019.1 1018.1 1028.6 1038.5 1035.9 1038.9 DAY 10 4 16 5 7 12 3 30 25 2 18 8 1997 1031.0 1033.1 1034.7 1021.5 1021.5 1011.8 1008.8 1011.4 1022.0 1023.7 1035.8 1029.9 1035.8 DAY 24 8 11 13 16 4 20 28 15 9 8 28 1998 1030.0 1037.9 1025.6 1023.9 1023.2 1015.6 1014.2 1014.0 1022.0 1035.0 1029.9 1032.9 1037.9 DAY 4 23 26 12 3 6 15 19 13 10 21 29 1999 1041.9 1029.1 1030.8 1025.8 1021.2 1017.8 1012.9 1014.6 1020.8 1028.2 1032.9 1037.4 1041.9 DAY 2 12 19 23 22 17 28 20 29 26 30 1 2000 1032.4 1032.1 1030.3 1023.4 1020.5 1018.1 1012.9 1014.1 1016.9 1026.6 1038.3 1028.3 1038.3 DAY 15 11 27 2 5 16 26 20 26 16 17 5 2001 1031.9 1034.2 1029.8 1025.8 1017.0 1016.8 1010.3 1013.4 1021.9 1027.4 1028.8 1029.3 1034.2 DAY 29 10 11 1 19 2 29 12 22 27 20 22 2002 1029.9 1034.3 1035.9 1022.6 1019.8 1015.4 1012.6 1013.5 1017.5 1022.1 1031.5 1038.1 1038.1 DAY 26 19 11 1 17 25 2 31 30 23 18 4 2003 1029.9 1029.1 1033.6 1024.8 1028.3 1018.6 1011.2 1013.0 1023.8 1021.5 1033.9 1040.9 1040.9 DAY 23 13 3 30 2 7 4 4 27 15 23 12 2004 1028.1 1023.1 1033.8 1023.5 1020.1 1017.4 1012.5 1010.7 1020.2 1028.2 1029.6 1034.6 1034.6 DAY 1 5 9 6 22 6 6 18 27 15 29 3 2005 1028.7 1032.5 1024.2 1034.9 1018.5 1013.9 1008.9 1013.6 1015.4 1028.3 1030.0 1037.0 1037.0 DAY 8 17 27 6 12 9 9 27 9 24 25 29 1977-2005 1042.2 1041.9 1042.1 1035.8 1030.5 1024.7 1018.6 1022.9 1027.1 1036.1 1041.4 1042.4 1042.4 YEAR-DAY 83- 8 84-19 85- 5 94- 5 82-10 78- 8 78- 8 92-31 87-24 82-25 83-26 78-24 78-24 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 75 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFF PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1007.9 1003.9 1002.4 1000.8 1011.6 1009.3 1013.1 1013.9 ****** DAY ** ** ** ** 25 22 27 17 12 5 18 6 1978 1006.5 1009.0 1006.0 1001.0 1003.1 998.2 1000.2 1006.6 1007.6 1010.3 1010.5 1005.9 998.2 DAY 21 22 25 10 30 22 1 5 2 1 1 16 1979 1010.9 1009.4 1005.7 1007.0 1008.0 1005.7 1001.1 1004.3 1011.3 1013.6 1006.6 1007.5 1001.1 DAY 6 12 27 15 17 23 6 14 6 27 29 1 1980 1009.2 1014.3 998.8 1001.1 1008.0 1004.1 1004.8 1003.1 1009.6 1009.1 1010.2 1006.9 998.8 DAY 7 12 19 16 23 17 3 20 21 5 10 12 1981 1012.4 1007.9 999.0 1004.8 1000.3 1003.4 1003.4 1006.1 1009.8 1016.1 1011.2 1010.4 999.0 DAY 19 1 13 30 1 16 2 13 17 15 13 19 1982 1009.3 1007.9 1000.9 1004.0 1009.3 1006.8 1000.4 1000.4 1011.7 1010.1 1015.3 1016.3 1000.4 DAY 9 1 19 19 15 18 31 1 8 1 8 28 1983 1008.3 1006.0 1009.8 1011.2 1007.6 1005.6 997.1 1004.6 1008.5 1011.6 1014.3 1008.9 997.1 DAY 24 18 6 24 29 21 27 4 8 3 13 12 1984 1016.6 1011.7 1006.8 1005.8 1001.4 1001.5 1003.6 1003.0 1009.9 1006.5 1007.6 1017.5 1001.4 DAY 9 8 25 10 30 21 16 15 9 18 13 14 1985 1014.3 998.6 1003.1 1006.4 1008.2 1001.3 ****** ****** ****** ****** ****** ****** ****** DAY 19 6 24 3 22 21 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1011.3 1005.5 1006.5 ****** DAY ** ** ** ** ** ** ** ** ** 5 9 28 1987 1007.0 1010.8 1001.3 1003.8 1004.0 1005.1 1001.0 1003.4 1007.5 1014.0 1006.0 1002.7 1001.0 DAY 7 11 14 26 23 19 7 15 6 4 7 24 1988 1008.7 1008.1 998.5 1007.0 1003.4 996.9 1001.9 1001.8 1005.6 1011.1 1005.3 1000.5 996.9 DAY 29 2 5 23 29 23 16 29 5 31 20 26 1989 1010.4 1009.3 1001.4 1008.0 1003.3 999.9 1001.5 1000.3 1004.3 1007.0 1012.5 1009.2 999.9 DAY 17 23 16 29 7 11 7 2 12 2 20 5 1990 1012.1 1000.1 1012.7 1003.8 998.3 997.0 1001.3 1002.7 1005.8 1011.3 1008.8 1014.9 997.0 DAY 5 16 25 16 13 27 28 7 13 26 1 18 1991 1010.8 1010.0 1002.3 999.4 997.6 1000.9 995.0 1000.0 1005.9 1014.6 1011.8 1008.1 995.0 DAY 5 4 7 5 17 11 8 6 3 5 5 10 1992 1004.5 1007.2 999.0 1006.0 1006.0 1000.3 1001.1 1004.6 1009.0 1012.3 1007.7 1013.8 999.0 DAY 1 25 31 15 19 28 10 1 18 11 26 14 1993 1010.1 1009.5 915.8 1006.7 1007.0 1003.7 1003.2 1003.6 1004.3 1012.0 1009.2 1016.8 915.8 DAY 9 3 11 9 20 18 1 12 14 1 11 5 1994 1010.5 1006.2 1008.6 1004.0 1003.2 1000.2 999.2 1001.0 1011.0 1014.8 1000.2 996.9 996.9 DAY 17 1 12 2 6 16 20 2 1 15 26 4 1995 1009.6 1010.1 999.6 1005.1 1007.1 996.7 994.7 1001.4 1005.3 1009.9 1004.6 1018.1 994.7 DAY 17 9 26 20 7 30 16 3 19 4 26 22 1996 1009.5 1007.2 1003.9 1000.8 1005.3 1003.3 1003.8 1001.3 998.1 1004.7 1018.3 1009.8 998.1 DAY 7 10 26 13 30 2 6 8 9 27 7 23 1997 1004.2 1010.1 1001.3 1000.0 1000.8 1000.8 997.1 999.3 999.4 1007.6 1010.4 1005.8 997.1 DAY 16 23 25 10 5 23 16 15 2 7 5 10 1998 1006.8 1003.1 994.8 1000.0 998.5 1004.6 995.2 1005.0 1005.6 1006.3 1014.1 1013.1 994.8 DAY 6 8 30 21 22 27 6 13 3 2 9 21 1999 1010.5 1000.2 1006.7 1006.3 1003.5 995.6 1001.4 1003.1 1004.7 1012.8 1012.1 1013.7 995.6 DAY 10 21 21 14 14 25 22 6 16 13 20 14 2000 1004.2 1008.9 1003.4 1004.8 1000.3 1002.8 1000.7 1000.6 1001.3 1011.0 1015.7 1012.4 1000.3 DAY 21 7 25 10 27 6 11 31 1 1 6 16 2001 1018.2 1000.1 1002.6 1004.8 1000.4 1000.2 999.0 999.7 1003.0 1007.5 1004.7 1010.2 999.0 DAY 5 21 25 13 9 26 10 31 5 25 18 20 2002 1003.4 1003.7 1001.2 997.9 1003.3 997.0 999.1 997.4 1006.9 1008.8 1008.2 1004.2 997.0 DAY 8 27 21 4 25 20 25 17 11 22 13 22 2003 1006.0 1003.7 1003.3 1005.5 1004.9 1000.7 996.7 1005.0 1003.0 1006.3 1011.4 1008.8 996.7 DAY 29 19 21 27 30 18 8 14 7 26 1 7 2004 1003.6 1000.9 1006.7 1000.4 998.2 1000.9 1001.8 997.9 1005.5 1011.0 1004.9 1011.8 997.9 DAY 14 15 31 24 13 18 11 12 11 22 18 10 2005 1005.4 1004.5 1003.8 1006.7 1000.9 996.0 994.6 998.6 1003.0 1007.7 1011.4 1004.2 994.6 DAY 23 2 24 30 6 21 6 7 5 21 6 24 1977-2005 1003.4 998.6 915.8 997.9 997.6 995.6 994.6 997.4 998.1 1004.7 1000.2 996.9 915.8 YEAR-DAY 2- 8 85- 6 93-11 2- 4 91-17 99-25 5- 6 2-17 96- 9 96-27 94-26 94- 4 93-11 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 76 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF COMPUTED QFF PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1024.6 ****** 1015.6 1008.8 1007.0 1011.2 1018.1 1022.6 1024.0 1025.3 ****** 1978 1026.6 1025.8 1021.0 1013.7 1014.8 1011.0 1010.5 1011.5 1015.0 1022.9 1027.6 1021.9 1018.5 1979 1026.8 1021.6 1021.1 1016.7 1018.2 1013.7 1009.0 1012.5 1018.6 1020.6 1028.4 1022.9 1019.2 1980 1024.7 1026.7 1020.1 1014.2 1015.1 1011.4 1009.2 1010.9 1016.5 1021.3 1023.1 1024.6 1018.1 1981 1023.5 1021.6 1018.0 1017.3 1014.9 1013.3 1009.4 1011.7 1018.5 1024.7 1023.2 1025.4 1018.5 1982 1022.9 ****** ****** ****** 1017.9 1012.7 1008.4 1011.5 1018.4 1022.8 1027.4 1028.5 ****** 1983 1025.3 1023.0 1022.4 1017.8 1013.5 1012.1 1007.3 1009.6 1015.8 1023.5 1025.0 1028.2 1018.6 1984 1025.9 1031.6 1019.9 1015.4 1014.6 1011.5 1008.1 1008.3 1017.5 1024.2 1023.5 1032.5 1019.4 1985 1025.0 1016.6 1026.0 1015.7 1014.8 1009.3 1006.0 1009.8 1012.3 1018.4 1021.6 1021.1 1016.4 1986 1022.2 1018.8 1022.4 1016.0 1010.8 1005.9 1007.2 1009.6 1014.7 1018.7 1021.0 1021.6 1015.7 1987 1020.5 1021.0 1013.0 1015.3 1011.8 1008.1 1007.1 1006.9 1014.0 1023.0 1022.5 1020.9 1015.3 1988 1022.3 1021.0 1013.4 1014.3 1012.1 1005.1 1004.2 1006.7 1012.5 1018.9 1019.3 1018.2 1014.0 1989 1023.4 1026.5 1015.3 1015.9 1013.6 1006.7 1006.0 1006.7 1010.9 1017.6 1020.8 1018.8 1015.2 1990 1022.9 1019.3 1021.0 1012.7 1011.5 1006.0 1005.4 1007.9 1010.3 1018.8 1021.1 1023.8 1015.1 1991 1022.8 1022.3 1017.3 1013.4 1009.4 1007.9 1004.1 1006.6 1013.1 1018.9 1023.2 1019.1 1014.8 1992 1021.0 1016.5 1018.9 1013.1 1014.2 1006.5 1005.5 1010.5 1014.7 1018.3 1019.9 1020.3 1015.0 1993 1023.9 1021.4 1017.9 1013.1 1010.9 1007.6 1007.0 1009.1 1011.7 1023.0 1022.1 1024.2 1016.0 1994 1021.2 1020.1 1017.1 1015.7 1010.8 1006.7 1004.5 1005.7 1017.3 1020.8 1016.7 1022.4 1014.9 1995 1022.1 1020.6 1017.8 1012.4 1012.8 1006.9 1002.6 1005.4 1011.1 1019.7 1018.8 1024.8 1014.6 1996 1024.6 1019.6 1016.6 1014.9 1012.0 1008.3 1007.1 1007.8 1008.4 1017.9 1025.8 1022.6 1015.4 1997 1019.8 1022.6 1015.3 1011.4 1012.6 1005.8 1003.1 1006.2 1012.9 1015.7 1021.9 1020.1 1013.9 1998 1020.0 1020.7 1015.7 1012.7 1012.4 1009.0 1004.8 1008.1 1011.9 1018.9 1020.4 1023.7 1014.8 1999 1022.0 1016.6 1016.7 1015.4 1012.4 1006.8 1005.5 1006.2 1011.1 1016.7 1020.6 1024.6 1014.5 2000 1020.2 1020.6 1017.1 1011.6 1009.2 1007.6 1006.4 1007.5 1010.4 1019.1 1024.5 1021.3 1014.6 2001 1024.8 1019.1 1016.6 1012.9 1008.6 1006.3 1006.0 1007.6 1011.5 1017.1 1018.3 1021.1 1014.2 2002 1021.2 1019.7 1015.8 1011.6 1011.2 1006.8 1006.6 1005.2 1011.9 1015.8 1021.3 1022.8 1014.2 2003 1021.2 1016.0 1017.1 1015.0 1014.3 1008.0 1003.4 1008.0 1012.3 1014.6 1021.4 1023.5 1014.6 2004 1016.7 1017.6 1019.6 1014.4 1008.7 1007.2 1006.7 1005.7 1013.7 1020.1 1017.5 1022.3 1014.2 2005 1020.1 1019.7 1014.4 1016.5 1011.6 1007.1 1004.4 1006.7 1010.8 1018.1 1022.8 1022.6 1014.6 MEAN 1022.6 1021.0 1018.3 1014.4 1012.8 1008.4 1006.3 1008.3 1013.6 1019.7 1022.2 1023.1 1015.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 77 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF COMPUTED QFF PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1039.5 ****** 1021.5 1013.3 1012.6 1018.6 1024.2 1036.5 1032.4 1040.2 ****** DAY ** ** 10 ** 2 2 21 20 30 24 27 13 1978 1040.5 1042.9 1030.8 1025.5 1029.2 1025.3 1018.9 1017.6 1024.7 1030.3 1037.7 1043.5 1043.5 DAY 13 6 20 12 3 8 8 30 28 11 6 24 1979 1042.7 1029.6 1034.5 1032.4 1027.6 1023.1 1014.0 1020.3 1025.5 1031.3 1038.3 1035.5 1042.7 DAY 19 19 5 27 25 11 20 29 23 9 19 22 1980 1032.9 1038.6 1029.5 1027.1 1024.9 1020.3 1015.8 1020.8 1024.9 1027.2 1031.9 1035.1 1038.6 DAY 16 3 28 2 16 1 18 31 26 22 3 17 1981 1035.9 1030.1 1031.2 1028.4 1024.5 1020.7 1015.7 1017.5 1027.0 1032.7 1033.1 1032.9 1035.9 DAY 9 24 5 3 22 10 30 24 23 29 16 2 1982 1036.4 ****** ****** ****** 1030.7 1019.3 1018.0 1017.1 1026.4 1036.8 1033.3 1042.3 ****** DAY 23 ** ** ** 10 7 8 15 21 25 19 10 1983 1043.6 1033.6 1030.9 1024.4 1021.3 1022.2 1017.0 1015.8 1022.9 1030.3 1042.0 1037.0 1043.6 DAY 8 23 19 30 16 1 1 18 28 29 26 23 1984 1035.3 1043.1 1029.3 1024.8 1022.0 1018.8 1012.9 1014.5 1022.4 1036.1 1034.8 1039.9 1043.1 DAY 5 19 10 5 12 16 4 31 30 22 27 18 1985 1033.2 1032.4 1043.6 1035.0 1024.4 1016.7 1011.6 1015.2 1021.7 1025.8 1029.7 1033.6 1043.6 DAY 25 24 5 17 12 10 29 30 22 31 1 10 1986 1036.2 1025.4 1032.9 1026.7 1021.3 1012.9 1012.7 1013.2 1019.0 1027.0 1032.9 1036.5 1036.5 DAY 29 13 3 5 19 3 22 8 30 15 16 11 1987 1034.1 1033.1 1028.4 1024.9 1020.5 1015.7 1011.1 1013.4 1025.4 1032.4 1039.6 1038.9 1039.6 DAY 12 12 23 22 1 6 12 6 24 29 30 1 1988 1034.5 1038.5 1026.6 1029.9 1022.9 1012.3 1008.7 1012.9 1020.9 1028.4 1027.5 1028.6 1038.5 DAY 3 7 17 9 5 1 27 21 25 17 6 30 1989 1036.2 1039.0 1022.8 1022.4 1022.5 1014.7 1012.6 1016.1 1025.1 1029.4 1031.1 1023.9 1039.0 DAY 28 4 8 3 1 2 10 19 23 24 8 29 1990 1033.7 1032.8 1037.0 1022.8 1021.7 1013.7 1008.7 1013.0 1015.2 1033.4 1031.6 1037.1 1037.1 DAY 27 8 17 3 16 7 17 29 24 16 14 30 1991 1033.1 1035.3 1027.8 1022.8 1018.8 1014.1 1010.5 1012.1 1021.2 1023.9 1030.1 1031.7 1035.3 DAY 1 14 12 14 25 18 12 22 27 14 24 17 1992 1037.8 1029.3 1033.0 1019.8 1025.2 1013.4 1014.4 1021.4 1021.5 1025.0 1032.5 1029.4 1037.8 DAY 10 16 13 20 2 7 13 31 30 17 4 29 1993 1035.8 1032.4 1029.4 1022.6 1023.7 1020.3 1011.5 1013.7 1021.9 1029.8 1031.8 1028.9 1035.8 DAY 6 17 17 1 9 23 28 24 23 8 22 7 1994 1034.4 1034.0 1026.7 1034.6 1021.0 1011.3 1009.9 1010.3 1024.0 1026.3 1023.9 1034.5 1034.6 DAY 10 18 1 5 19 6 2 7 23 25 3 8 1995 1032.5 1027.7 1029.2 1024.2 1020.1 1014.0 1008.0 1011.9 1021.2 1034.0 1030.2 1035.2 1035.2 DAY 7 18 3 7 26 1 24 25 22 18 28 11 1996 1037.8 1031.7 1022.9 1029.4 1018.7 1015.9 1014.2 1019.0 1018.8 1028.4 1038.0 1035.9 1038.0 DAY 10 4 16 5 7 12 3 30 25 2 18 8 1997 1031.1 1033.2 1034.8 1021.4 1021.4 1011.9 1009.0 1011.5 1019.8 1023.7 1035.8 1030.1 1035.8 DAY 24 8 11 13 16 4 20 28 8 9 8 28 1998 1030.1 1038.1 1025.4 1024.0 1023.2 1014.1 1012.3 1013.0 1020.7 1033.7 1028.3 1031.2 1038.1 DAY 4 23 26 12 3 6 15 25 13 10 21 29 1999 1040.8 1027.8 1029.8 1024.4 1020.0 1016.2 1011.3 1012.9 1019.4 1026.8 1031.7 1036.2 1040.8 DAY 2 12 19 23 9 17 28 20 29 26 30 1 2000 1031.2 1031.0 1029.0 1022.0 1018.9 1016.6 1011.8 1012.3 1016.8 1026.6 1038.2 1028.4 1038.2 DAY 15 11 27 2 5 16 26 23 26 16 17 5 2001 1031.9 1034.4 1029.8 1025.8 1016.9 1016.8 1010.2 1013.3 1021.7 1027.3 1028.8 1029.4 1034.4 DAY 29 10 11 1 19 2 29 12 22 27 20 22 2002 1029.9 1034.3 1036.0 1022.6 1019.7 1015.5 1012.6 1013.5 1017.4 1022.1 1031.5 1038.1 1038.1 DAY 26 19 11 1 17 25 2 31 30 23 18 4 2003 1030.1 1029.1 1033.6 1024.7 1028.3 1018.6 1011.2 1013.0 1023.7 1021.4 1033.8 1041.6 1041.6 DAY 23 13 3 30 2 7 4 4 27 15 23 12 2004 1028.0 1023.1 1033.8 1023.5 1020.1 1017.4 1012.5 1010.7 1020.2 1028.3 1029.6 1034.6 1034.6 DAY 1 5 9 6 22 6 6 18 27 15 29 3 2005 1028.7 1032.5 1024.1 1034.9 1018.4 1013.9 1009.0 1013.6 1015.3 1028.3 1030.0 1036.9 1036.9 DAY 8 17 27 6 12 9 9 27 9 24 25 29 1977-2005 1043.6 1043.1 1043.6 1035.0 1030.7 1025.3 1018.9 1021.4 1027.0 1036.8 1042.0 1043.5 1043.6 YEAR-DAY 83- 8 84-19 85- 5 85-17 82-10 78- 8 78- 8 92-31 81-23 82-25 83-26 78-24 85- 5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 78 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF COMPUTED QFF PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1012.3 ****** 1008.3 1004.0 1002.7 1001.3 1012.4 1010.1 1014.1 1013.9 ****** DAY ** ** 4 ** 25 22 28 17 12 5 18 6 1978 1007.4 1009.9 1006.8 1003.0 1003.7 998.7 1000.8 1006.0 1008.1 1011.1 1008.1 1006.8 998.7 DAY 21 22 25 10 30 22 1 14 2 1 1 16 1979 1011.7 1010.2 1006.4 1007.8 1008.4 1006.3 1002.0 1005.0 1012.0 1014.2 1007.6 1008.4 1002.0 DAY 6 12 27 15 17 23 6 14 6 27 29 1 1980 1010.2 1015.2 999.7 1001.4 1008.7 1004.5 1005.5 1005.1 1010.3 1009.3 1011.0 1007.5 999.7 DAY 7 12 19 16 23 17 3 20 21 5 10 12 1981 1013.2 1008.8 1000.3 1005.3 1000.2 1004.0 1003.7 1006.1 1010.3 1016.6 1012.6 1011.4 1000.2 DAY 19 1 13 30 1 16 2 14 17 15 13 19 1982 1010.2 ****** ****** ****** 1010.1 1007.5 1000.8 1001.6 1012.3 1010.9 1016.1 1017.2 ****** DAY 9 ** ** ** 15 18 31 1 3 1 8 28 1983 1009.2 1007.0 1010.7 1011.9 1008.8 1005.8 998.3 1004.9 1009.3 1012.6 1014.1 1009.5 998.3 DAY 24 18 6 24 5 21 27 4 8 5 13 12 1984 1017.3 1012.8 1007.7 1005.0 1002.6 1002.3 1003.9 1003.6 1011.3 1007.3 1011.3 1018.1 1002.3 DAY 9 8 25 10 29 21 16 15 9 18 12 14 1985 1015.2 999.7 1004.1 1007.1 1008.6 1002.0 999.7 1004.4 1005.5 1008.3 1015.4 997.5 997.5 DAY 19 6 24 3 22 21 20 8 7 11 11 19 1986 1005.5 1011.2 1013.2 1005.8 1000.2 1000.0 1002.3 1005.0 1009.4 1010.0 1004.5 1005.7 1000.0 DAY 20 7 10 11 3 13 20 15 26 5 9 28 1987 1006.6 1009.9 1000.4 1002.7 1002.8 1004.0 999.9 1001.1 1005.9 1012.6 1005.2 1004.1 999.9 DAY 7 11 14 26 23 19 7 18 6 4 7 24 1988 1007.7 1007.3 997.5 1005.8 1001.9 995.6 1000.1 1000.7 1004.4 1010.2 1004.5 999.6 995.6 DAY 29 2 5 30 29 23 16 30 5 31 20 26 1989 1009.6 1008.4 1000.1 1006.9 1002.4 999.1 999.9 998.8 1002.6 1006.0 1011.5 1008.1 998.8 DAY 17 23 16 29 7 11 7 2 12 2 20 5 1990 1011.6 999.3 1011.6 1004.4 997.5 996.1 999.3 1001.4 1005.2 1010.2 1007.7 1014.0 996.1 DAY 5 16 25 16 13 27 28 7 14 26 1 18 1991 1009.8 1009.0 1001.4 998.3 996.5 999.5 993.7 998.9 1004.9 1013.5 1010.8 1006.9 993.7 DAY 5 4 7 5 17 11 8 6 3 5 5 10 1992 1003.7 1006.3 998.1 1004.7 1004.6 998.8 1000.1 1003.5 1007.5 1011.3 1006.7 1012.8 998.1 DAY 1 25 31 15 19 28 10 1 18 11 26 14 1993 1009.3 1009.5 1003.5 1005.7 1005.7 1001.4 1002.1 1002.5 1003.8 1011.0 1008.1 1015.8 1001.4 DAY 9 3 22 9 20 17 1 12 14 1 11 5 1994 1009.6 1005.4 1007.6 1003.0 1002.1 999.1 998.2 999.6 1009.4 1013.8 999.1 996.0 996.0 DAY 17 1 12 2 6 16 20 2 1 15 26 4 1995 1009.2 1009.1 998.9 1003.8 1005.7 995.7 993.5 1000.0 1003.9 1008.9 1003.7 1017.2 993.5 DAY 17 9 26 20 7 30 16 3 19 4 26 22 1996 1008.3 1006.3 1002.8 1000.2 1003.8 1001.8 1002.2 1001.5 998.2 1004.7 1018.3 1009.8 998.2 DAY 7 10 26 13 30 2 7 8 9 27 7 23 1997 1004.3 1010.3 1001.4 1000.2 1001.4 1000.9 997.2 999.3 999.4 1007.6 1010.2 1005.8 997.2 DAY 16 23 25 10 5 23 16 15 2 7 5 10 1998 1006.7 1003.1 994.8 1000.2 997.3 1003.6 993.8 1003.8 1003.8 1005.3 1013.0 1012.1 993.8 DAY 13 8 30 21 22 27 6 13 3 2 11 21 1999 1009.4 999.2 1005.8 1005.5 1002.2 994.5 1000.5 1001.8 1003.2 1011.2 1011.0 1012.6 994.5 DAY 10 21 21 14 14 25 22 6 16 13 26 14 2000 1003.4 1008.0 1002.5 1003.6 999.6 1002.0 999.1 1000.7 1001.2 1011.1 1015.7 1012.4 999.1 DAY 21 7 25 10 27 6 11 31 1 1 6 16 2001 1018.2 1000.2 1002.6 1004.9 1000.4 995.8 999.0 999.7 1002.9 1007.5 1004.7 1010.2 995.8 DAY 5 21 25 13 9 7 10 31 5 25 18 20 2002 1003.2 1003.7 1001.4 998.5 1003.3 997.2 999.0 997.4 1006.9 1008.5 1008.2 1004.3 997.2 DAY 8 27 21 4 25 20 25 17 11 22 13 22 2003 1006.0 1003.7 1003.3 1005.5 1004.9 1000.7 996.7 1005.0 1003.0 1006.2 1011.4 1008.8 996.7 DAY 29 19 21 27 30 30 8 14 7 26 1 7 2004 1003.6 1000.9 1006.7 1000.4 998.3 1000.8 1001.8 997.9 1005.5 1011.0 1005.0 1011.8 997.9 DAY 14 15 31 24 13 18 11 12 11 22 18 10 2005 1005.4 1004.5 1003.7 1006.7 1000.9 996.0 994.5 998.6 1003.3 1007.6 1011.3 1004.2 994.5 DAY 23 2 24 30 6 21 6 7 5 21 6 24 1977-2005 1003.2 999.2 994.8 998.3 996.5 994.5 993.5 997.4 998.2 1004.7 999.1 996.0 993.5 YEAR-DAY 2- 8 99-21 98-30 91- 5 91-17 99-25 95-16 2-17 96- 9 96-27 94-26 94- 4 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 79 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFE PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 900.2 ****** 895.4 891.7 890.5 893.4 898.1 899.4 898.6 898.2 ****** 1978 897.8 897.9 895.2 892.0 893.5 891.9 893.2 893.5 895.7 900.2 900.8 896.7 895.7 1979 898.6 894.9 895.7 894.8 896.6 894.8 892.6 894.2 898.8 898.9 901.7 896.7 896.5 1980 896.5 897.2 894.9 893.1 894.8 893.4 892.6 893.7 896.6 898.0 898.6 897.8 895.6 1981 896.9 895.4 893.8 894.3 894.4 894.1 892.2 894.2 898.5 901.3 898.0 898.2 895.9 1982 896.9 895.5 895.0 895.4 898.1 894.4 891.8 893.8 898.2 898.5 900.1 899.1 896.4 1983 897.1 895.9 896.4 895.2 894.1 894.3 891.6 892.9 896.3 900.2 900.4 900.1 896.2 1984 898.0 901.5 895.3 893.4 893.6 893.6 892.0 892.0 897.6 900.5 899.1 902.1 896.6 1985 897.1 891.0 898.8 893.9 894.9 892.4 889.7 891.9 893.2 895.6 897.2 894.3 894.2 1986 893.9 892.4 894.9 893.3 891.4 888.3 890.7 892.1 895.2 896.9 895.7 894.3 893.2 1987 894.5 894.7 889.0 892.5 892.5 890.8 890.2 890.6 894.3 898.4 897.6 894.8 893.3 1988 893.9 893.5 889.2 892.4 891.6 888.3 888.2 889.8 893.5 896.5 895.0 892.8 892.1 1989 893.9 896.0 890.8 893.9 893.0 889.8 890.0 890.4 892.1 896.0 895.6 893.3 892.9 1990 894.9 892.1 895.4 890.5 891.7 889.3 889.3 891.0 892.3 896.1 896.5 895.5 892.9 1991 894.3 894.7 892.4 892.1 889.0 890.2 888.2 889.9 893.9 896.5 897.5 892.7 892.6 1992 892.8 889.7 892.2 890.6 892.3 888.8 889.3 892.4 894.4 895.5 895.5 894.0 892.3 1993 894.4 894.2 892.6 891.2 891.1 889.8 890.2 891.8 893.0 899.2 896.0 896.9 893.4 1994 894.0 892.3 892.4 893.1 891.3 888.5 887.7 889.4 896.5 897.6 893.1 894.9 892.6 1995 895.2 893.7 892.7 890.7 892.9 889.2 887.1 889.6 892.0 896.5 894.4 896.7 892.6 1996 896.1 892.8 891.0 892.4 892.4 890.5 890.6 891.1 890.5 895.3 899.4 896.1 893.2 1997 893.0 893.8 889.9 889.8 892.4 888.8 887.6 890.0 893.7 894.4 896.7 893.9 892.0 1998 891.9 893.1 890.8 891.4 892.2 891.7 888.6 891.4 892.9 896.6 896.7 898.1 893.0 1999 894.7 891.8 891.8 892.7 892.1 889.6 888.7 890.0 892.2 895.0 895.2 898.0 892.6 2000 893.0 893.3 892.0 891.0 890.2 890.0 890.0 890.8 892.2 896.6 898.2 895.1 892.7 2001 896.6 892.9 892.2 891.6 889.9 889.1 889.3 890.9 892.8 895.3 894.3 895.6 892.5 2002 894.3 893.1 892.0 889.4 890.8 889.3 890.3 889.2 893.7 895.2 896.8 894.5 892.4 2003 894.1 890.2 891.8 892.3 892.9 889.8 887.8 891.2 893.0 894.0 896.0 896.4 892.4 2004 890.5 892.1 894.9 891.6 889.2 890.0 889.6 889.5 894.6 897.2 894.1 894.6 892.3 2005 892.6 892.3 890.4 893.9 891.4 889.6 888.9 890.0 892.5 896.3 897.1 896.7 892.6 MEAN 894.9 893.9 893.2 892.4 892.6 890.8 890.0 891.4 894.4 897.2 897.1 896.1 893.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 80 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFE PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 908.9 ****** 900.0 895.3 894.9 898.1 904.4 907.3 905.7 908.5 ****** DAY ** ** 9 ** 29 10 21 23 30 24 27 13 1978 907.9 908.3 902.2 899.3 901.5 903.2 898.5 898.5 902.1 907.0 907.8 911.2 911.2 DAY 13 6 19 12 3 8 8 21 28 10 27 24 1979 910.6 902.9 904.0 905.9 903.6 901.1 898.3 900.2 903.4 907.0 909.2 905.5 910.6 DAY 18 13 5 27 25 11 20 29 23 9 11 4 1980 902.0 904.2 902.1 901.0 902.9 899.6 898.8 902.7 903.1 902.4 906.2 905.9 906.2 DAY 15 1 15 1 16 1 18 30 26 7 3 17 1981 906.4 901.0 904.6 901.5 903.8 900.1 897.2 897.6 904.3 908.0 905.3 905.2 908.0 DAY 9 28 8 10 21 10 30 3 27 29 16 1 1982 906.0 905.0 902.0 906.3 907.7 899.4 897.4 898.1 903.4 908.8 904.9 907.4 908.8 DAY 19 11 5 4 10 7 8 14 20 25 11 10 1983 910.8 903.7 903.5 901.2 900.5 901.4 898.5 898.0 900.7 906.0 913.1 909.0 913.1 DAY 8 10 14 29 16 1 1 17 28 28 26 4 1984 905.0 909.3 902.6 900.5 899.9 897.4 895.5 896.1 901.4 908.0 909.4 909.9 909.9 DAY 5 19 29 14 17 12 3 30 22 21 27 18 1985 903.2 901.3 910.5 907.4 902.6 897.6 893.3 895.2 901.1 901.9 902.2 902.5 910.5 DAY 14 24 5 17 12 10 1 13 22 31 18 9 1986 902.1 899.3 902.2 900.9 898.6 893.6 894.7 894.8 898.9 902.9 903.7 905.8 905.8 DAY 28 22 3 5 18 3 3 24 22 15 16 7 1987 905.0 904.7 899.2 899.1 897.9 894.9 893.5 896.1 899.8 904.5 908.3 907.2 908.3 DAY 21 1 23 22 13 6 24 5 24 16 30 1 1988 903.5 904.1 900.8 902.2 898.5 892.9 892.0 896.0 899.5 903.0 903.8 900.6 904.1 DAY 3 7 17 9 5 8 31 21 21 28 6 5 1989 903.6 904.1 897.1 898.0 897.8 893.8 894.5 896.1 901.4 903.8 902.5 897.2 904.1 DAY 22 8 8 11 21 2 10 19 23 24 8 18 1990 902.1 901.8 905.8 897.9 899.3 893.9 892.9 894.8 897.0 905.6 905.0 902.9 905.8 DAY 26 8 17 3 16 7 17 29 16 15 22 29 1991 901.7 903.7 898.0 898.8 894.7 896.1 893.6 894.1 899.1 900.4 901.8 902.0 903.7 DAY 11 15 29 29 25 17 11 22 11 13 27 17 1992 903.9 898.3 899.3 894.7 898.4 894.0 894.2 898.8 899.4 900.5 905.4 899.8 905.4 DAY 10 16 12 8 2 7 12 31 30 30 4 1 1993 906.0 903.3 900.8 898.9 899.2 899.0 894.9 894.6 900.4 904.5 903.2 901.7 906.0 DAY 6 9 16 1 9 22 27 18 23 20 22 27 1994 903.5 903.6 898.8 905.0 897.4 892.0 890.9 893.2 902.3 901.8 900.3 902.6 905.0 DAY 10 18 1 5 18 8 13 15 23 23 2 22 1995 904.6 900.4 901.3 897.8 898.6 894.5 890.9 894.3 897.9 905.8 902.3 903.4 905.8 DAY 7 12 3 7 26 1 23 25 22 25 15 10 1996 906.4 899.4 895.1 900.6 897.1 895.0 897.1 899.4 897.3 905.0 908.5 903.7 908.5 DAY 10 13 16 4 7 12 3 29 25 2 18 8 1997 901.7 900.1 904.4 896.1 898.6 893.0 892.9 894.3 899.4 900.7 907.8 901.3 907.8 DAY 24 25 11 20 12 8 19 21 19 8 7 28 1998 900.1 905.9 900.8 901.8 899.4 896.0 894.4 895.0 898.2 905.8 903.5 905.5 905.9 DAY 4 23 26 12 9 5 15 25 27 9 21 29 1999 908.7 900.6 898.2 899.1 897.0 895.7 892.9 896.4 897.2 900.3 903.2 905.2 908.7 DAY 2 12 1 23 9 17 19 20 5 26 30 1 2000 900.3 903.0 901.2 897.1 896.8 895.6 894.6 895.5 896.8 900.9 908.3 902.7 908.3 DAY 31 29 27 2 5 16 30 23 29 16 17 4 2001 901.0 904.5 901.0 901.5 895.3 895.5 893.3 896.3 899.2 903.1 900.3 901.3 904.5 DAY 26 10 2 1 18 2 29 5 22 10 2 10 2002 901.3 903.5 904.4 897.8 897.2 896.0 895.0 894.7 898.3 900.0 903.8 906.5 906.5 DAY 27 19 11 1 17 25 3 31 21 11 18 3 2003 899.7 897.9 900.4 897.9 901.9 895.8 894.6 894.2 900.2 899.9 904.4 906.8 906.8 DAY 11 13 3 30 1 6 3 4 27 15 23 12 2004 897.8 896.5 905.1 898.6 896.4 897.2 894.6 893.2 898.9 902.4 899.6 904.3 905.1 DAY 12 13 9 11 22 6 6 17 21 27 13 3 2005 900.7 900.7 895.8 905.3 897.0 893.5 892.3 894.4 896.3 902.3 902.3 905.7 905.7 DAY 8 17 16 6 19 4 8 27 9 11 25 29 1977-2005 910.8 909.3 910.5 907.4 907.7 903.2 898.8 902.7 904.4 908.8 913.1 911.2 913.1 YEAR-DAY 83- 8 84-19 85- 5 85-17 82-10 78- 8 80-18 80-30 77-30 82-25 83-26 78-24 83-26 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 81 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFE PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 892.1 ****** 890.0 887.6 887.1 885.6 893.9 890.6 889.1 890.9 ****** DAY ** ** 4 ** 25 22 11 17 12 5 18 10 1978 883.7 889.7 884.4 885.0 884.1 882.9 884.8 888.6 890.3 893.9 891.0 884.8 882.9 DAY 21 22 12 25 30 22 1 14 2 1 8 16 1979 888.3 887.4 885.8 889.1 888.6 888.3 885.8 888.1 894.0 893.9 886.3 887.0 885.8 DAY 6 12 27 13 17 23 6 14 6 4 29 1 1980 889.0 889.3 878.2 883.2 890.7 887.3 888.6 887.2 890.1 892.2 892.1 884.9 878.2 DAY 7 12 19 16 23 17 3 20 21 4 10 12 1981 886.9 886.1 881.0 884.4 883.4 887.1 882.7 890.7 893.5 895.3 891.0 891.6 881.0 DAY 3 1 13 30 1 5 6 13 17 16 13 19 1982 885.2 884.8 884.9 887.3 890.9 889.8 885.9 886.4 893.3 891.5 892.2 891.0 884.8 DAY 29 1 19 19 15 18 31 1 3 1 8 28 1983 885.8 884.3 888.7 891.3 889.0 889.3 883.6 889.3 890.9 892.7 892.7 887.4 883.6 DAY 24 18 6 25 4 22 27 28 8 4 13 12 1984 892.5 885.4 885.0 885.3 885.7 886.8 889.0 888.2 892.2 887.8 887.4 891.5 885.0 DAY 8 8 15 10 28 21 16 15 8 18 12 7 1985 890.7 879.8 881.1 889.1 889.3 886.6 884.4 887.6 887.4 889.6 893.3 876.7 876.7 DAY 2 6 24 3 1 20 20 8 7 11 8 19 1986 882.1 886.6 888.3 886.2 883.7 884.2 886.5 888.1 890.9 891.7 886.0 885.6 882.1 DAY 20 16 10 11 3 13 20 15 6 5 9 27 1987 884.6 886.6 877.2 884.6 886.2 888.2 884.8 886.2 889.8 891.2 886.3 884.5 877.2 DAY 7 9 14 20 23 2 8 18 5 4 7 24 1988 883.1 885.7 878.3 884.6 884.2 881.2 884.8 884.2 888.2 890.6 885.4 878.6 878.3 DAY 29 1 5 30 1 23 1 29 5 21 20 26 1989 882.6 883.8 878.1 888.8 886.3 884.9 885.7 883.9 886.8 886.4 890.2 884.2 878.1 DAY 17 23 30 14 7 10 6 1 12 2 20 5 1990 887.6 879.0 890.0 884.1 880.8 882.2 886.4 885.9 887.9 889.6 886.8 888.5 879.0 DAY 5 16 1 16 13 27 27 7 5 26 1 25 1991 884.9 885.6 879.5 882.8 879.8 882.8 883.1 885.3 887.9 892.5 889.7 887.3 879.5 DAY 25 4 7 10 22 11 7 11 3 4 5 2 1992 881.3 883.2 878.0 884.9 885.8 883.4 885.4 887.4 890.0 890.4 885.1 887.9 878.0 DAY 1 25 31 15 10 28 10 1 17 24 26 28 1993 882.2 885.8 881.9 886.6 886.4 885.8 887.2 886.2 887.5 890.2 884.6 889.3 881.9 DAY 9 21 22 14 14 4 1 12 14 1 14 5 1994 885.8 882.5 883.2 883.0 883.0 883.7 883.5 884.5 891.7 891.6 879.4 878.3 878.3 DAY 16 1 15 2 1 16 20 2 1 14 26 4 1995 886.4 885.4 881.9 885.8 888.2 882.0 880.9 885.5 886.3 889.7 883.0 891.2 880.9 DAY 17 5 26 18 7 30 16 3 19 11 26 22 1996 888.5 883.8 881.8 883.4 888.3 886.1 886.8 885.2 883.9 883.5 893.1 887.3 881.8 DAY 7 5 26 10 30 5 7 8 22 27 29 25 1997 882.2 887.3 881.1 881.7 886.0 885.5 883.3 884.3 884.7 890.2 889.2 885.4 881.1 DAY 16 23 25 10 4 30 16 5 2 3 5 10 1998 879.0 879.3 877.3 883.2 881.6 888.0 881.1 888.0 887.8 888.7 890.8 887.7 877.3 DAY 13 14 30 21 22 27 6 13 6 1 9 21 1999 886.8 882.0 884.0 885.5 883.0 879.4 885.5 887.1 887.0 890.8 887.0 889.5 879.4 DAY 9 20 21 14 14 25 22 13 16 31 26 14 2000 880.9 883.4 884.5 885.8 884.7 884.7 885.3 885.1 885.6 891.8 892.6 888.0 880.9 DAY 21 7 25 10 27 26 11 3 1 1 22 15 2001 892.3 877.6 882.5 886.8 881.9 881.6 884.3 883.6 887.6 889.1 883.8 887.8 877.6 DAY 4 21 25 13 9 18 19 27 8 25 18 5 2002 883.5 882.6 881.8 877.2 886.2 882.1 884.0 883.0 889.4 888.6 887.3 883.2 877.2 DAY 8 27 21 4 12 20 24 17 11 22 12 22 2003 884.4 876.8 882.6 885.6 886.1 885.1 883.4 888.7 886.1 886.5 888.4 887.5 876.8 DAY 29 19 21 21 30 18 8 1 7 27 14 7 2004 882.4 882.2 886.9 882.3 881.0 885.7 884.8 883.0 889.8 890.3 884.9 888.1 881.0 DAY 14 15 31 17 13 17 11 12 6 22 23 15 2005 878.8 882.9 881.5 886.6 882.2 882.4 881.1 884.5 887.6 888.1 889.2 884.2 878.8 DAY 23 2 24 27 6 20 6 8 12 20 9 26 1977-2005 878.8 876.8 877.2 877.2 879.8 879.4 880.9 883.0 883.9 883.5 879.4 876.7 876.7 YEAR-DAY 5-23 3-19 87-14 2- 4 91-22 99-25 95-16 2-17 96-22 96-27 94-26 85-19 85-19 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 82 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QNH PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1025.6 ****** 1020.2 1016.2 1014.8 1018.0 1023.3 1024.6 1023.8 1023.3 ****** 1978 1022.9 1023.0 1020.0 1016.5 1018.2 1016.3 1017.8 1018.2 1020.6 1025.6 1026.3 1021.7 1020.6 1979 1023.8 1019.7 1020.6 1019.5 1021.5 1019.5 1017.1 1018.9 1024.0 1024.2 1027.3 1021.7 1021.5 1980 1021.4 1022.2 1019.7 1017.7 1019.6 1018.0 1017.1 1018.3 1021.6 1023.1 1023.8 1022.9 1020.5 1981 1021.9 1020.2 1018.4 1019.0 1019.1 1018.8 1016.7 1018.9 1023.7 1026.8 1023.1 1023.3 1020.8 1982 1021.9 1020.3 1019.7 1020.3 1023.2 1019.1 1016.3 1018.4 1023.3 1023.7 1025.5 1024.3 1021.3 1983 1022.1 1020.8 1021.3 1020.0 1018.7 1019.1 1016.0 1017.5 1021.2 1025.5 1025.8 1025.5 1021.1 1984 1023.1 1027.0 1020.1 1018.0 1018.2 1018.3 1016.4 1016.4 1022.6 1025.8 1024.4 1027.7 1021.5 1985 1022.1 1015.3 1024.0 1018.5 1019.7 1016.9 1013.8 1016.4 1017.8 1020.5 1022.2 1019.0 1018.9 1986 1018.6 1016.9 1019.7 1017.9 1015.7 1012.3 1015.0 1016.6 1020.0 1021.9 1020.5 1019.0 1017.8 1987 1019.2 1019.4 1013.1 1017.0 1017.0 1015.2 1014.5 1014.8 1019.0 1023.6 1022.6 1019.5 1017.9 1988 1018.6 1018.1 1013.3 1016.9 1016.0 1012.3 1012.2 1014.0 1018.1 1021.5 1019.8 1017.4 1016.5 1989 1018.6 1020.9 1015.1 1018.5 1017.5 1014.0 1014.3 1014.7 1016.6 1020.9 1020.4 1017.9 1017.4 1990 1019.7 1016.5 1020.2 1014.7 1016.1 1013.4 1013.4 1015.3 1016.7 1021.0 1021.5 1020.4 1017.4 1991 1019.0 1019.5 1016.9 1016.6 1013.2 1014.4 1012.2 1014.1 1018.6 1021.4 1022.6 1017.2 1017.1 1992 1017.4 1013.8 1016.7 1014.8 1016.7 1012.9 1013.4 1016.9 1019.1 1020.3 1020.4 1018.6 1016.8 1993 1019.1 1018.9 1017.1 1015.5 1015.4 1014.0 1014.5 1016.2 1017.5 1024.4 1020.9 1021.9 1018.0 1994 1018.6 1016.8 1016.9 1017.7 1015.7 1012.6 1011.7 1013.6 1021.4 1022.7 1017.7 1019.7 1017.1 1995 1020.0 1018.4 1017.2 1015.0 1017.4 1013.3 1011.1 1013.8 1016.5 1021.4 1019.1 1021.7 1017.1 1996 1021.1 1017.4 1015.3 1016.9 1016.9 1014.7 1014.9 1015.4 1014.8 1020.1 1024.6 1021.0 1017.8 1997 1017.5 1018.5 1014.1 1014.0 1016.9 1012.9 1011.6 1014.2 1018.4 1019.2 1021.6 1018.5 1016.5 1998 1016.4 1017.7 1015.1 1015.7 1016.7 1016.1 1012.7 1015.8 1017.4 1021.6 1021.7 1023.2 1017.5 1999 1019.5 1016.2 1016.2 1017.2 1016.5 1013.8 1012.8 1014.2 1016.7 1019.7 1020.0 1023.1 1017.2 2000 1017.5 1017.9 1016.4 1015.4 1014.4 1014.2 1014.2 1015.1 1016.7 1021.6 1023.4 1019.8 1017.2 2001 1021.5 1017.4 1016.7 1016.0 1014.2 1013.2 1013.4 1015.2 1017.3 1020.1 1019.1 1020.4 1017.0 2002 1019.0 1017.6 1016.4 1013.5 1015.1 1013.4 1014.5 1013.4 1018.3 1020.1 1021.8 1019.2 1016.9 2003 1018.8 1014.5 1016.2 1016.7 1017.4 1014.0 1011.7 1015.5 1017.6 1018.7 1020.9 1021.3 1016.9 2004 1014.8 1016.6 1019.6 1016.0 1013.3 1014.2 1013.8 1013.6 1019.4 1022.3 1018.8 1019.3 1016.8 2005 1017.1 1016.7 1014.7 1018.6 1015.8 1013.7 1013.0 1014.2 1017.0 1021.2 1022.1 1021.7 1017.2 MEAN 1019.7 1018.5 1017.8 1016.9 1017.1 1015.1 1014.2 1015.8 1019.1 1022.2 1022.1 1021.0 1018.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 83 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QNH PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1035.2 ****** 1025.3 1020.1 1019.7 1023.2 1030.2 1033.5 1031.7 1034.8 ****** DAY ** ** 9 ** 29 10 21 23 30 24 27 13 1978 1034.1 1034.6 1027.8 1024.6 1027.0 1028.9 1023.7 1023.7 1027.7 1033.1 1034.0 1037.8 1037.8 DAY 13 6 19 12 3 8 8 21 28 10 27 24 1979 1037.1 1028.6 1029.8 1031.9 1029.3 1026.6 1023.5 1025.6 1029.1 1033.1 1035.6 1031.5 1037.1 DAY 18 13 5 27 25 11 20 29 23 9 11 4 1980 1027.6 1030.0 1027.7 1026.5 1028.6 1024.9 1024.0 1028.3 1028.8 1028.0 1032.2 1031.9 1032.2 DAY 15 1 15 1 16 1 18 30 26 7 3 17 1981 1032.5 1026.5 1030.5 1027.0 1029.6 1025.5 1022.2 1022.7 1030.1 1034.2 1031.2 1031.1 1034.2 DAY 9 28 8 10 21 10 30 3 27 29 16 1 1982 1032.0 1030.9 1027.6 1032.3 1033.9 1024.7 1022.5 1023.2 1029.1 1035.1 1030.8 1033.6 1035.1 DAY 19 11 5 4 10 7 8 14 20 25 11 10 1983 1037.3 1029.5 1029.2 1026.7 1025.9 1026.9 1023.7 1023.1 1026.1 1032.0 1039.9 1035.3 1039.9 DAY 8 10 14 29 16 1 1 17 28 28 26 4 1984 1030.9 1035.7 1028.2 1025.9 1025.2 1022.5 1020.3 1021.0 1026.9 1034.2 1035.8 1036.3 1036.3 DAY 5 19 29 14 17 12 3 30 22 21 27 18 1985 1028.9 1026.8 1037.0 1033.6 1028.2 1022.7 1017.9 1020.0 1026.6 1027.5 1027.8 1028.1 1037.0 DAY 14 24 5 17 12 10 1 13 22 31 18 9 1986 1027.7 1024.6 1027.8 1026.3 1023.8 1018.2 1019.4 1019.6 1024.1 1028.6 1029.5 1031.8 1031.8 DAY 28 22 3 5 18 3 3 24 22 15 16 7 1987 1030.9 1030.6 1024.5 1024.3 1023.0 1019.7 1018.1 1021.0 1025.1 1030.3 1034.6 1033.3 1034.6 DAY 21 1 23 22 13 6 24 5 24 16 30 1 1988 1029.2 1029.9 1026.2 1027.8 1023.7 1017.4 1016.4 1020.9 1024.8 1028.7 1029.6 1026.0 1029.9 DAY 3 7 17 9 5 8 31 21 21 28 6 5 1989 1029.3 1029.9 1022.1 1023.1 1022.9 1018.4 1019.2 1021.0 1026.9 1029.6 1028.1 1022.2 1029.9 DAY 22 8 8 11 21 2 10 19 23 24 8 18 1990 1027.7 1027.3 1031.8 1023.0 1024.6 1018.6 1017.4 1019.6 1022.0 1031.6 1030.9 1028.6 1031.8 DAY 26 8 17 3 16 7 17 29 16 15 22 29 1991 1027.2 1029.5 1023.1 1024.0 1019.4 1021.0 1018.2 1018.8 1024.3 1025.8 1027.3 1027.6 1029.5 DAY 11 15 29 29 25 17 11 22 11 13 27 17 1992 1029.7 1023.5 1024.6 1019.4 1023.6 1018.7 1018.9 1024.0 1024.7 1025.9 1031.3 1025.1 1031.3 DAY 10 16 12 8 2 7 12 31 30 30 4 1 1993 1032.0 1029.0 1026.2 1024.1 1024.5 1024.2 1019.7 1019.3 1025.8 1030.3 1028.9 1027.2 1032.0 DAY 6 9 16 1 9 22 27 18 23 20 22 27 1994 1029.2 1029.3 1024.0 1030.9 1022.5 1016.4 1015.2 1017.8 1027.9 1027.3 1025.7 1028.2 1030.9 DAY 10 18 1 5 18 8 13 15 23 23 2 22 1995 1030.5 1025.8 1026.8 1022.9 1023.8 1019.2 1015.2 1019.0 1023.0 1031.8 1027.9 1029.1 1031.8 DAY 7 12 3 7 26 1 23 25 22 25 15 10 1996 1032.5 1024.7 1019.9 1026.0 1022.1 1019.8 1022.1 1024.7 1022.3 1030.9 1034.8 1029.5 1034.8 DAY 10 13 16 4 7 12 3 29 25 2 18 8 1997 1027.2 1025.5 1030.2 1021.0 1023.8 1017.6 1017.4 1019.0 1024.7 1026.1 1034.0 1026.8 1034.0 DAY 24 25 11 20 12 8 19 21 19 8 7 28 1998 1025.5 1031.9 1026.2 1027.3 1024.7 1020.9 1019.1 1019.8 1023.3 1031.8 1029.2 1031.5 1031.9 DAY 4 23 26 12 9 5 15 25 27 9 21 29 1999 1035.0 1026.0 1023.3 1024.3 1022.0 1020.6 1017.4 1021.3 1022.2 1025.7 1028.9 1031.1 1035.0 DAY 2 12 1 23 9 17 19 20 5 26 30 1 2000 1025.7 1028.7 1026.7 1022.1 1021.8 1020.5 1019.3 1020.3 1021.8 1026.3 1034.6 1028.3 1034.6 DAY 31 29 27 2 5 16 30 23 29 16 17 4 2001 1026.5 1030.3 1026.5 1027.0 1020.1 1020.3 1017.9 1021.2 1024.5 1028.8 1025.7 1026.8 1030.3 DAY 26 10 2 1 18 2 29 5 22 10 2 10 2002 1026.8 1029.2 1030.2 1022.9 1022.2 1020.9 1019.8 1019.4 1023.5 1025.3 1029.6 1032.6 1032.6 DAY 27 19 11 1 17 25 3 31 21 11 18 3 2003 1025.0 1023.0 1025.8 1023.0 1027.5 1020.7 1019.3 1018.9 1025.6 1025.2 1030.2 1032.9 1032.9 DAY 11 13 3 30 1 6 3 4 27 15 23 12 2004 1022.9 1021.5 1031.0 1023.8 1021.3 1022.2 1019.3 1017.8 1024.1 1028.0 1024.9 1030.1 1031.0 DAY 12 13 9 11 22 6 6 17 21 27 13 3 2005 1026.1 1026.1 1020.7 1031.2 1022.0 1018.1 1016.8 1019.1 1021.2 1027.9 1027.9 1031.7 1031.7 DAY 8 17 16 6 19 4 8 27 9 11 25 29 1977-2005 1037.3 1035.7 1037.0 1033.6 1033.9 1028.9 1024.0 1028.3 1030.2 1035.1 1039.9 1037.8 1039.9 YEAR-DAY 83- 8 84-19 85- 5 85-17 82-10 78- 8 80-18 80-30 77-30 82-25 83-26 78-24 83-26 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 84 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QNH PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1016.6 ****** 1014.2 1011.6 1011.0 1009.3 1018.6 1014.9 1013.2 1015.2 ****** DAY ** ** 4 ** 25 22 11 17 12 5 18 10 1978 1007.2 1013.9 1008.0 1008.7 1007.7 1006.3 1008.4 1012.7 1014.6 1018.6 1015.3 1008.4 1006.3 DAY 21 22 12 25 30 22 1 14 2 1 8 16 1979 1012.3 1011.3 1009.6 1013.2 1012.7 1012.3 1009.6 1012.1 1018.7 1018.6 1010.1 1010.9 1009.6 DAY 6 12 27 13 17 23 6 14 6 4 29 1 1980 1013.1 1013.4 1001.1 1006.7 1015.0 1011.2 1012.7 1011.1 1014.3 1016.7 1016.6 1008.6 1001.1 DAY 7 12 19 16 23 17 3 20 21 4 10 12 1981 1010.8 1009.9 1004.2 1008.0 1006.9 1011.0 1006.1 1015.0 1018.1 1020.1 1015.3 1016.0 1004.2 DAY 3 1 13 30 1 5 6 13 17 16 13 19 1982 1008.9 1008.4 1008.6 1011.2 1015.2 1014.0 1009.7 1010.2 1017.9 1015.9 1016.7 1015.3 1008.4 DAY 29 1 19 19 15 18 31 1 3 1 8 28 1983 1009.6 1007.9 1012.8 1015.7 1013.1 1013.4 1007.1 1013.4 1015.2 1017.2 1017.2 1011.3 1007.1 DAY 24 18 6 25 4 22 27 28 8 4 13 12 1984 1017.0 1009.1 1008.7 1009.0 1009.4 1010.7 1013.1 1012.2 1016.7 1011.8 1011.3 1015.9 1008.7 DAY 8 8 15 10 28 21 16 15 8 18 12 7 1985 1015.0 1002.9 1004.3 1013.2 1013.4 1010.4 1008.0 1011.6 1011.3 1013.8 1017.9 999.4 999.4 DAY 2 6 24 3 1 20 20 8 7 11 8 19 1986 1005.4 1010.4 1012.3 1010.0 1007.2 1007.8 1010.3 1012.1 1015.2 1016.1 1009.8 1009.3 1005.4 DAY 20 16 10 11 3 13 20 15 6 5 9 27 1987 1008.2 1010.4 1000.0 1008.2 1010.0 1012.2 1008.4 1010.0 1014.0 1015.6 1010.1 1008.1 1000.0 DAY 7 9 14 20 23 2 8 18 5 4 7 24 1988 1006.6 1009.4 1001.2 1008.2 1007.8 1004.4 1008.4 1007.8 1012.2 1014.9 1009.1 1001.5 1001.2 DAY 29 1 5 30 1 23 1 29 5 21 20 26 1989 1006.0 1007.3 1001.0 1012.9 1010.1 1008.6 1009.4 1007.4 1010.7 1010.2 1014.4 1007.8 1001.0 DAY 17 23 30 14 7 10 6 1 12 2 20 5 1990 1011.6 1002.0 1014.2 1007.7 1004.0 1005.6 1010.2 1009.7 1011.9 1013.8 1010.7 1012.6 1002.0 DAY 5 16 1 16 13 27 27 7 5 26 1 25 1991 1008.6 1009.3 1002.6 1006.2 1002.9 1006.2 1006.6 1009.0 1011.9 1017.0 1013.9 1011.2 1002.6 DAY 25 4 7 10 22 11 7 11 3 4 5 2 1992 1004.5 1006.7 1000.9 1008.6 1009.6 1006.9 1009.1 1011.3 1014.2 1014.7 1008.8 1011.9 1000.9 DAY 1 25 31 15 10 28 10 1 17 24 26 28 1993 1005.6 1009.6 1005.2 1010.4 1010.2 1009.6 1011.1 1010.0 1011.4 1014.4 1008.2 1013.4 1005.2 DAY 9 21 22 14 14 4 1 12 14 1 14 5 1994 1009.6 1005.9 1006.7 1006.4 1006.4 1007.2 1007.0 1008.1 1016.1 1016.0 1002.4 1001.2 1001.2 DAY 16 1 15 2 1 16 20 2 1 14 26 4 1995 1010.2 1009.1 1005.2 1009.6 1012.2 1005.3 1004.1 1009.2 1010.1 1013.9 1006.4 1015.6 1004.1 DAY 17 5 26 18 7 30 16 3 19 11 26 22 1996 1012.6 1007.3 1005.1 1006.9 1012.3 1009.9 1010.7 1008.9 1007.4 1007.0 1017.7 1011.2 1005.1 DAY 7 5 26 10 30 5 7 8 22 27 29 25 1997 1005.6 1011.2 1004.3 1005.0 1009.8 1009.2 1006.8 1007.9 1008.3 1014.4 1013.3 1009.1 1004.3 DAY 16 23 25 10 4 30 16 5 2 3 5 10 1998 1002.0 1002.3 1000.1 1006.7 1004.9 1012.0 1004.3 1012.0 1011.8 1012.8 1015.1 1011.7 1000.1 DAY 13 14 30 21 22 27 6 13 6 1 9 21 1999 1010.7 1005.3 1007.6 1009.2 1006.4 1002.4 1009.2 1011.0 1010.9 1015.1 1010.9 1013.7 1002.4 DAY 9 20 21 14 14 25 22 13 16 31 26 14 2000 1004.1 1006.9 1008.1 1009.6 1008.3 1008.3 1009.0 1008.8 1009.3 1016.2 1017.1 1012.0 1004.1 DAY 21 7 25 10 27 26 11 3 1 1 22 15 2001 1016.8 1000.4 1005.9 1010.7 1005.2 1004.9 1007.9 1007.1 1011.6 1013.2 1007.3 1011.8 1000.4 DAY 4 21 25 13 9 18 19 27 8 25 18 5 2002 1007.0 1006.0 1005.1 1000.0 1010.0 1005.4 1007.6 1006.4 1013.6 1012.7 1011.2 1006.7 1000.0 DAY 8 27 21 4 12 20 24 17 11 22 12 22 2003 1008.0 999.5 1006.0 1009.3 1009.9 1008.8 1006.9 1012.8 1009.9 1010.3 1012.4 1011.4 999.5 DAY 29 19 21 21 30 18 8 1 7 27 14 7 2004 1005.8 1005.6 1010.8 1005.7 1004.2 1009.4 1008.4 1006.4 1014.0 1014.6 1008.6 1012.1 1004.2 DAY 14 15 31 17 13 17 11 12 6 22 23 15 2005 1001.8 1006.3 1004.8 1010.4 1005.6 1005.8 1004.3 1008.1 1011.6 1012.1 1013.3 1007.8 1001.8 DAY 23 2 24 27 6 20 6 8 12 20 9 26 1977-2005 1001.8 999.5 1000.0 1000.0 1002.9 1002.4 1004.1 1006.4 1007.4 1007.0 1002.4 999.4 999.4 YEAR-DAY 5-23 3-19 87-14 2- 4 91-22 99-25 95-16 2-17 96-22 96-27 94-26 85-19 85-19 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 85 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFF PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1015.2 1008.3 1006.5 1010.3 1017.4 1022.2 1024.0 1025.5 ****** 1978 1026.3 1025.8 1020.5 1013.4 1014.1 1010.1 1009.7 1010.9 1014.2 1022.5 1027.8 1022.6 1018.2 1979 1027.4 1021.7 1020.9 1016.4 1017.6 1012.9 1008.4 1011.7 1018.2 1020.5 1028.1 1023.4 1018.9 1980 1025.1 1026.8 1020.2 1013.8 1014.6 1010.9 1008.8 1011.0 1016.1 1021.0 1023.1 1024.9 1018.0 1981 1023.8 1022.0 1017.9 1017.1 1014.7 1012.4 1008.8 1011.0 1017.2 1024.4 1022.9 1025.6 1018.2 1982 1026.1 1024.6 1020.9 1016.2 1017.9 1012.1 1008.0 1011.1 1018.1 1021.4 1027.3 1027.9 1019.3 1983 1025.1 1022.9 1022.2 1017.1 1012.5 1011.5 1006.7 1009.2 1015.3 1023.3 1024.8 1028.2 1018.2 1984 1026.2 1031.6 1019.9 1014.7 1013.9 1011.2 1007.2 1007.8 1016.7 1023.5 1023.8 1032.3 1019.1 1985 1025.2 1016.3 1025.5 1014.8 1013.8 1008.9 ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.3 1022.8 1023.4 ****** 1987 1022.6 1022.9 1015.2 1017.1 1013.3 1009.5 1008.5 1008.3 1015.4 1024.6 1024.2 1022.6 1017.0 1988 1024.2 1022.8 1014.9 1016.2 1013.3 1006.4 1005.9 1008.3 1014.3 1020.4 1020.8 1020.3 1015.7 1989 1025.6 1028.2 1017.0 1017.5 1015.0 1008.1 1007.2 1008.3 1012.4 1019.0 1022.2 1020.9 1016.8 1990 1025.1 1021.0 1022.7 1014.3 1013.0 1007.4 1007.0 1009.3 1011.7 1020.2 1022.7 1025.4 1016.7 1991 1024.5 1024.2 1019.4 1015.6 1011.1 1009.6 1005.5 1008.1 1014.7 1020.1 1024.9 1021.0 1016.6 1992 1022.8 1017.9 1020.5 1015.0 1015.6 1008.1 1007.2 1012.2 1015.7 1019.7 1021.3 1022.4 1016.5 1993 1025.3 1023.7 1019.9 1014.5 1012.7 1009.2 1008.5 1010.6 1013.1 1024.2 1023.8 1026.3 1017.6 1994 1023.3 1021.8 1018.9 1017.1 1012.3 1007.9 1005.7 1007.5 1018.6 1022.3 1018.2 1024.2 1016.5 1995 1024.3 1022.5 1019.4 1014.1 1014.0 1008.1 1004.3 1007.1 1012.4 1021.2 1020.4 1026.6 1016.2 1996 1026.5 1021.9 1018.3 1016.9 1013.7 1009.6 1007.6 1008.2 1008.7 1018.1 1026.2 1023.3 1016.6 1997 1020.6 1023.5 1016.1 1011.8 1012.8 1006.0 1003.6 1006.4 1013.0 1015.8 1022.3 1021.0 1014.4 1998 1020.9 1021.8 1016.1 1013.0 1013.7 1010.5 1006.3 1009.5 1013.2 1020.5 1022.2 1026.0 1016.1 1999 1023.9 1018.4 1018.4 1016.9 1014.0 1008.3 1007.0 1007.4 1012.5 1018.1 1022.5 1026.6 1016.1 2000 1021.8 1022.7 1018.8 1012.8 1010.2 1008.9 1007.8 1008.4 1010.6 1019.7 1024.7 1022.1 1015.7 2001 1025.5 1019.9 1016.9 1013.1 1009.2 1008.2 1005.9 1007.7 1011.8 1017.5 1019.0 1022.1 1014.7 2002 1022.0 1020.4 1016.6 1011.9 1011.6 1007.1 1007.0 1005.4 1011.9 1016.1 1022.0 1023.8 1014.7 2003 1022.3 1016.9 1018.0 1015.5 1014.2 1008.2 1003.9 1008.2 1012.3 1014.7 1021.9 1024.4 1015.0 2004 1017.5 1018.3 1019.9 1014.8 1008.7 1007.4 1006.7 1005.9 1013.7 1020.0 1018.2 1022.9 1014.5 2005 1021.0 1020.4 1014.9 1016.5 1011.3 1007.1 1004.4 1006.9 1010.5 1017.9 1023.0 1023.4 1014.8 MEAN 1023.9 1022.2 1018.9 1015.1 1013.4 1009.1 1006.8 1008.8 1014.1 1020.3 1023.0 1024.2 1016.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 86 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFF PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1020.5 1013.1 1011.8 1017.3 1024.5 1036.4 1031.3 1039.1 ****** DAY ** ** ** ** 29 10 21 29 30 24 27 13 1978 1039.0 1041.5 1029.3 1024.6 1028.0 1024.2 1017.8 1018.5 1023.9 1030.4 1036.9 1044.1 1044.1 DAY 13 6 19 12 3 8 7 21 28 10 27 24 1979 1042.0 1030.3 1034.5 1033.1 1027.5 1021.8 1015.0 1020.2 1025.4 1030.7 1038.2 1035.2 1042.0 DAY 19 19 5 27 25 11 20 29 24 9 13 22 1980 1032.4 1037.5 1029.7 1025.3 1025.1 1020.5 1016.1 1023.8 1024.1 1026.2 1031.7 1036.0 1037.5 DAY 10 3 15 2 16 1 18 30 26 23 3 17 1981 1035.9 1030.0 1030.9 1026.8 1026.1 1019.6 1014.6 1014.8 1027.2 1033.8 1032.3 1033.6 1035.9 DAY 9 28 5 3 21 10 30 3 23 29 16 12 1982 1039.1 1035.9 1031.0 1032.3 1030.5 1019.9 1016.5 1017.1 1025.4 1036.8 1039.5 1040.9 1040.9 DAY 19 11 5 4 10 29 8 14 20 25 19 10 1983 1043.4 1033.0 1029.9 1025.0 1019.9 1021.7 1016.6 1016.4 1024.5 1030.0 1041.8 1036.6 1043.4 DAY 8 23 14 29 16 1 1 31 28 28 26 23 1984 1035.0 1042.0 1028.6 1024.9 1021.4 1018.0 1011.9 1013.7 1021.2 1036.3 1036.6 1041.3 1042.0 DAY 5 19 5 4 12 13 3 30 22 21 27 18 1985 1033.5 1030.9 1042.7 1034.2 1023.1 1016.6 ****** ****** ****** ****** ****** ****** ****** DAY 25 24 5 17 12 10 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1029.0 1034.8 1038.6 ****** DAY ** ** ** ** ** ** ** ** ** 15 16 10 1987 1035.4 1035.4 1030.1 1027.0 1021.5 1017.6 1012.8 1015.9 1025.8 1034.6 1041.3 1040.6 1041.3 DAY 21 12 23 6 1 6 12 5 24 28 30 1 1988 1035.6 1039.9 1029.2 1031.0 1023.7 1012.8 1011.7 1016.4 1022.1 1029.2 1030.1 1030.1 1039.9 DAY 3 7 17 9 5 1 27 21 25 16 6 24 1989 1037.8 1039.3 1025.2 1023.7 1024.0 1014.4 1012.8 1017.6 1026.7 1031.9 1032.9 1026.8 1039.3 DAY 28 4 8 8 1 2 10 19 23 24 8 18 1990 1035.2 1034.3 1039.0 1026.5 1023.9 1015.3 1011.7 1014.8 1017.0 1034.2 1033.4 1038.6 1039.0 DAY 27 8 17 3 16 7 31 29 16 16 14 30 1991 1034.9 1037.3 1029.2 1024.8 1020.0 1016.5 1014.0 1014.0 1024.1 1025.7 1031.9 1033.7 1037.3 DAY 1 15 12 29 25 17 11 27 27 13 24 17 1992 1039.4 1030.1 1032.9 1020.9 1026.7 1015.2 1015.8 1022.8 1023.9 1026.6 1033.3 1030.3 1039.4 DAY 10 16 13 8 2 7 12 31 30 30 4 29 1993 1037.5 1034.2 1031.9 1024.2 1025.9 1023.0 1014.1 1015.2 1023.2 1030.6 1034.1 1031.5 1037.5 DAY 6 9 16 1 9 22 27 24 23 8 30 6 1994 1035.4 1036.2 1029.0 1036.5 1022.4 1012.9 1010.8 1011.5 1025.8 1028.2 1025.6 1035.2 1036.5 DAY 10 18 1 5 18 8 1 7 23 24 3 8 1995 1035.2 1030.3 1031.7 1025.8 1022.5 1015.3 1010.3 1013.0 1022.4 1035.5 1031.9 1036.5 1036.5 DAY 7 12 3 7 26 1 23 24 22 18 15 11 1996 1040.0 1032.5 1025.0 1030.0 1020.5 1016.3 1017.0 1019.2 1018.8 1028.7 1038.5 1036.4 1040.0 DAY 10 4 16 5 7 12 3 30 25 2 18 7 1997 1031.0 1033.4 1034.9 1022.7 1021.6 1011.2 1009.6 1012.1 1020.8 1023.9 1036.1 1031.9 1036.1 DAY 24 8 11 13 16 4 19 28 15 8 7 28 1998 1031.0 1038.6 1028.0 1024.6 1022.9 1015.7 1014.8 1013.8 1021.4 1033.9 1030.0 1034.9 1038.6 DAY 4 23 26 12 3 5 15 25 12 10 21 29 1999 1043.4 1029.4 1029.4 1025.7 1021.9 1016.3 1012.8 1014.7 1020.4 1028.0 1034.5 1037.4 1043.4 DAY 2 12 19 23 9 17 13 20 29 26 30 1 2000 1032.3 1033.4 1029.4 1023.2 1019.1 1017.8 1012.9 1014.7 1017.0 1026.7 1038.1 1029.9 1038.1 DAY 31 29 27 2 5 13 26 23 29 16 17 4 2001 1031.9 1034.9 1030.7 1027.3 1017.1 1015.7 1010.3 1013.0 1021.9 1028.4 1029.3 1030.4 1034.9 DAY 29 10 11 1 18 2 29 5 22 27 20 22 2002 1030.7 1032.7 1035.5 1023.4 1020.4 1015.3 1013.5 1013.5 1017.4 1025.9 1031.8 1038.8 1038.8 DAY 27 19 11 1 17 25 3 31 30 23 18 4 2003 1030.8 1028.6 1032.4 1024.7 1029.6 1017.5 1012.9 1011.8 1022.8 1021.3 1034.6 1041.6 1041.6 DAY 23 13 3 30 1 6 3 4 27 15 25 12 2004 1028.1 1023.5 1033.5 1023.1 1018.7 1017.4 1012.2 1011.2 1019.8 1027.1 1028.6 1035.3 1035.3 DAY 1 5 9 6 22 13 6 18 27 15 30 3 2005 1029.5 1032.0 1023.8 1035.4 1017.9 1014.0 1009.5 1013.2 1015.1 1027.8 1031.0 1036.8 1036.8 DAY 8 17 27 6 12 9 8 27 9 24 27 29 1977-2005 1043.4 1042.0 1042.7 1036.5 1030.5 1024.2 1017.8 1023.8 1027.2 1036.8 1041.8 1044.1 1044.1 YEAR-DAY 83- 8 84-19 85- 5 94- 5 82-10 78- 8 78- 7 80-30 81-23 82-25 83-26 78-24 78-24 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 87 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFF PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1008.9 1003.1 1001.5 1000.0 1011.7 1007.9 1013.5 1014.2 ****** DAY ** ** ** ** 25 22 27 17 12 5 18 6 1978 1006.0 1012.1 1004.7 1003.0 1002.2 998.3 998.6 1004.1 1007.3 1012.1 1014.6 1005.9 998.3 DAY 21 22 12 25 30 21 1 14 2 1 8 16 1979 1011.0 1011.7 1004.6 1006.9 1008.0 1005.0 1000.5 1004.0 1011.7 1012.9 1005.8 1009.4 1000.5 DAY 6 16 27 15 17 23 6 14 9 4 29 1 1980 1012.3 1016.4 997.8 1000.0 1007.3 1004.0 1003.9 1003.6 1008.6 1010.2 1013.1 1005.5 997.8 DAY 6 12 19 16 23 17 3 20 21 4 10 12 1981 1012.6 1010.3 1000.9 1004.8 1001.3 1003.0 1003.0 1006.7 1002.0 1016.2 1011.3 1013.6 1000.9 DAY 12 1 13 29 1 16 1 13 8 16 13 19 1982 1010.6 1009.7 1006.0 1004.9 1008.7 1006.2 1001.4 1002.1 1013.4 1011.4 1015.2 1017.0 1001.4 DAY 9 1 19 19 15 18 31 1 12 1 8 28 1983 1007.2 1007.4 1011.2 1012.3 1007.3 1005.1 995.6 1003.8 1007.0 1011.9 1012.3 1009.4 995.6 DAY 24 18 5 11 29 21 27 3 8 4 13 12 1984 1017.7 1011.8 1006.8 1002.8 1001.5 1001.6 1003.7 1002.7 1010.2 1005.0 1009.1 1017.2 1001.5 DAY 9 8 25 10 28 21 16 15 2 18 12 14 1985 1016.9 1001.3 999.8 1005.4 1007.2 1000.7 ****** ****** ****** ****** ****** ****** ****** DAY 19 6 24 15 22 20 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1011.7 1007.6 1009.1 ****** DAY ** ** ** ** ** ** ** ** ** 5 9 27 1987 1006.9 1010.3 1000.1 1004.5 1004.7 1005.2 1001.4 1002.4 1007.4 1012.5 1004.6 1005.0 1000.1 DAY 27 9 14 20 23 19 8 18 5 4 7 24 1988 1008.9 1008.5 1000.2 1005.8 1004.4 996.5 1002.1 1001.9 1006.3 1011.1 1005.7 1001.8 996.5 DAY 29 2 5 30 29 23 15 29 9 21 20 26 1989 1010.5 1010.7 1001.7 1009.8 1004.7 1002.3 1001.0 1000.7 1004.9 1005.1 1013.8 1010.8 1000.7 DAY 17 23 16 14 7 11 6 2 12 2 16 5 1990 1013.3 1002.5 1013.0 1005.1 1000.7 996.3 1002.2 1001.9 1005.3 1011.3 1008.1 1015.7 996.3 DAY 5 16 14 29 13 27 27 7 14 26 1 18 1991 1012.6 1010.9 1004.8 1004.1 998.7 1001.1 998.0 1001.3 1005.4 1014.3 1012.7 1011.1 998.0 DAY 25 4 7 10 22 11 8 6 3 4 5 2 1992 1005.8 1007.2 1000.2 1007.4 1005.5 1000.3 1002.1 1004.6 1009.6 1013.0 1008.3 1014.6 1000.2 DAY 1 25 31 15 19 28 10 1 18 11 25 14 1993 1009.5 1011.5 1007.4 1006.6 1005.8 1003.5 1003.0 1002.8 1004.5 1010.8 1008.4 1017.5 1002.8 DAY 9 21 22 9 23 17 1 12 14 1 11 5 1994 1012.8 1006.0 1007.4 1005.7 1002.7 1000.4 998.6 1001.0 1011.2 1014.8 1002.3 1000.5 998.6 DAY 5 1 15 2 1 16 20 2 1 15 26 4 1995 1009.1 1011.1 1003.7 1007.2 1007.9 996.7 994.6 1000.8 1004.7 1009.8 1008.7 1018.2 994.6 DAY 17 5 26 20 7 30 16 3 19 4 26 22 1996 1012.3 1010.0 1004.9 1003.1 1006.3 1002.6 1003.5 1001.1 999.9 1001.9 1019.1 1010.4 999.9 DAY 7 10 26 13 30 5 7 8 9 27 2 25 1997 1004.6 1012.2 1001.6 1001.5 1005.4 1001.3 998.3 999.2 1000.3 1008.0 1008.4 1007.5 998.3 DAY 16 23 25 10 4 23 16 14 2 3 5 10 1998 1004.9 1004.8 993.9 1000.7 999.0 1004.2 996.2 1004.6 1005.8 1007.8 1013.8 1013.1 993.9 DAY 13 8 30 21 22 27 5 13 2 2 9 21 1999 1010.6 1004.4 1006.6 1007.1 1000.4 995.7 1002.0 1002.6 1004.8 1012.3 1011.8 1014.2 995.7 DAY 10 20 21 14 14 25 4 6 16 12 25 14 2000 1004.9 1010.3 1007.0 1003.7 1001.7 1002.1 1001.9 1000.7 1001.1 1012.4 1016.0 1011.6 1000.7 DAY 21 7 25 10 27 26 11 31 1 1 6 21 2001 1018.5 998.4 1001.6 1005.8 1000.9 1002.6 999.0 998.8 1003.7 1009.1 1003.4 1010.5 998.4 DAY 4 21 24 26 30 16 10 31 8 25 18 20 2002 1004.0 1003.7 1000.8 997.9 1003.0 997.8 999.1 997.4 1006.6 1008.0 1009.5 1007.7 997.4 DAY 8 27 21 4 25 20 25 17 11 22 13 22 2003 1010.3 1003.0 1004.1 1005.7 1004.6 1000.5 997.3 1004.9 1003.4 1005.1 1011.8 1010.4 997.3 DAY 29 19 26 21 30 18 8 13 7 27 1 7 2004 1003.7 1000.6 1007.6 1001.5 997.6 1002.0 1001.9 998.0 1007.0 1010.3 1004.7 1014.4 997.6 DAY 14 15 31 24 13 10 10 12 6 22 18 10 2005 1003.6 1006.3 1005.5 1005.0 1000.9 997.6 994.7 998.9 1003.7 1007.5 1012.7 1005.8 994.7 DAY 23 2 24 27 4 20 6 8 5 20 9 24 1977-2005 1003.6 998.4 993.9 997.9 997.6 995.7 994.6 997.4 999.9 1001.9 1002.3 1000.5 993.9 YEAR-DAY 5-23 1-21 98-30 2- 4 4-13 99-25 95-16 2-17 96- 9 96-27 94-26 94- 4 98-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 88 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF COMPUTED QFF PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1018.7 1020.9 1028.8 1024.2 ****** 1980 1026.2 1027.8 1021.0 1014.4 1015.1 1011.5 1009.2 1011.3 1016.5 1021.6 1023.7 1025.6 1018.7 1981 1024.8 1022.8 1018.6 1017.6 1015.2 1012.9 1008.8 1011.4 1018.0 1025.0 1023.6 1026.3 1018.7 1982 1025.7 1027.3 ****** 1017.1 1017.9 1012.5 1008.4 1011.6 1018.5 1021.8 1027.8 1029.0 ****** 1983 1026.0 1023.7 1022.9 1017.8 1013.0 1011.8 1007.6 1010.0 1015.7 1023.8 1025.5 1029.1 1018.9 1984 1027.0 1032.6 1020.6 1015.4 1014.4 1011.6 1007.6 1008.1 1017.3 1024.1 1024.4 1032.5 1019.6 1985 1026.1 1017.2 1026.3 1015.5 1014.5 1008.7 1006.3 1009.9 1012.4 1018.6 1022.3 1022.1 1016.7 1986 1022.8 1019.5 1022.8 1016.3 1011.1 1005.9 1007.3 1009.8 1014.4 ****** 1026.8 1024.1 ****** 1987 1022.7 ****** 1013.9 1015.8 1010.4 1008.1 ****** ****** ****** ****** ****** ****** ****** 1988 1023.1 1021.7 1013.9 1014.9 1012.0 1005.1 1004.5 1007.4 1012.9 1019.1 1019.5 1019.2 1014.4 1989 1025.3 1027.1 1015.3 1015.5 1013.7 1007.1 ****** ****** 1008.4 ****** 1020.9 1019.7 ****** 1990 1024.0 1020.0 1021.5 1013.2 1011.6 1006.1 1005.6 1007.9 1010.2 1018.8 1021.4 1024.3 1015.4 1991 1023.4 1023.1 1018.2 1014.2 1009.8 1008.2 1004.2 1006.8 1013.2 1018.8 1023.5 1019.8 1015.2 1992 1021.9 1017.0 1019.4 1013.7 1014.2 1006.6 1005.7 1010.6 1014.3 1018.3 1020.1 1021.2 1015.3 1993 1024.3 1022.6 1018.8 1013.4 1011.3 1007.7 1007.0 1009.2 1011.6 1022.9 1022.5 1025.1 1016.4 1994 1022.2 1020.8 1017.7 1015.8 1010.9 1006.7 1004.3 1006.0 1017.2 1020.8 1017.0 1023.2 1015.2 1995 1023.2 1021.2 1018.2 1012.7 1012.7 1006.9 1003.0 1005.7 1011.1 1019.9 1019.1 1025.4 1014.9 1996 1025.4 1020.8 1017.1 1015.6 1012.3 1008.3 1006.9 1008.1 1008.6 1018.0 1026.2 1023.2 1015.9 1997 1020.6 1023.4 1016.1 1011.7 1012.7 1005.9 1003.4 1006.4 1012.9 1015.7 1022.3 1020.9 1014.3 1998 1020.8 1021.7 1016.0 1012.9 1012.4 1009.1 1004.8 1008.2 1011.7 1019.0 1020.9 1024.6 1015.2 1999 1022.8 1017.3 1017.2 1015.6 1012.5 1006.9 1005.6 1006.1 1011.1 1016.8 1021.1 1025.3 1014.9 2000 1020.9 1021.6 1017.7 1011.6 1009.0 1007.7 1006.4 1007.4 1010.5 1019.6 1024.8 1022.1 1014.9 2001 1025.6 1019.9 1016.9 1013.0 1008.8 1006.3 1005.8 1007.4 1011.6 1017.4 1019.0 1022.1 1014.5 2002 1022.0 1020.5 1016.5 1011.9 1011.5 1007.0 1006.9 1005.3 1011.8 1015.8 1022.0 1023.8 1014.6 2003 1022.2 1016.9 1017.9 1015.4 1014.2 1008.2 1003.9 1008.1 1012.3 1014.6 1021.9 1024.3 1015.0 2004 1017.3 1018.2 1020.0 1014.9 1008.7 1007.4 1006.7 1005.9 1013.8 1020.0 1018.1 1022.9 1014.5 2005 1021.0 1020.4 1014.9 1016.4 1011.2 1007.1 1004.4 1006.8 1010.5 1017.9 1022.9 1023.4 1014.7 MEAN 1023.4 1021.8 1018.4 1014.7 1012.3 1008.1 1006.0 1008.1 1013.3 1019.6 1022.5 1024.0 1016.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 89 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF COMPUTED QFF PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1025.9 1031.1 1038.9 1036.3 ****** DAY ** ** ** ** ** ** ** ** 24 9 19 22 1980 1033.7 1039.0 1030.4 1025.8 1025.6 1021.0 1016.2 1024.1 1024.5 1026.9 1032.0 1036.8 1039.0 DAY 16 3 15 2 16 1 18 30 26 23 3 17 1981 1036.8 1031.0 1032.0 1027.6 1027.2 1020.4 1015.1 1015.3 1025.7 1034.0 1033.1 1034.3 1036.8 DAY 9 24 5 3 21 9 30 3 24 29 16 12 1982 1039.4 1036.9 ****** 1032.9 1030.3 1018.3 1016.6 1017.4 1025.9 1037.7 1033.7 1042.1 ****** DAY 22 20 ** 4 11 3 8 14 20 25 17 10 1983 1044.4 1034.5 1030.6 1025.5 1019.9 1022.1 1016.7 1015.4 1023.2 1030.6 1042.4 1037.6 1044.4 DAY 8 23 14 29 16 1 1 18 28 28 26 23 1984 1035.8 1043.3 1029.2 1025.6 1021.9 1018.2 1012.1 1013.8 1021.6 1036.8 1037.2 1041.4 1043.3 DAY 5 19 5 4 12 16 3 31 22 21 27 19 1985 1034.6 1033.5 1043.9 1034.8 1023.7 1016.8 1012.3 1015.1 1022.5 1027.7 1029.0 1034.2 1043.9 DAY 25 24 5 17 12 10 29 30 22 31 25 10 1986 1035.2 1027.1 1033.1 1026.0 1021.9 1013.1 1012.5 1013.6 1020.2 ****** 1033.5 1037.0 ****** DAY 28 13 3 5 18 3 22 31 30 ** 16 11 1987 1034.1 ****** 1028.8 1025.7 1020.1 1015.9 ****** ****** ****** ****** ****** ****** ****** DAY 21 ** 23 6 1 6 ** ** ** ** ** ** 1988 1034.5 1038.7 1027.7 1029.5 1022.0 1011.5 1010.0 1014.4 1020.8 1027.6 1028.2 1028.9 1038.7 DAY 3 7 17 9 5 1 27 21 25 16 6 24 1989 1036.6 1038.2 1023.8 1022.1 1022.8 1014.1 ****** ****** 1020.1 ****** 1031.6 1025.5 ****** DAY 28 4 8 3 1 2 ** ** 20 ** 8 18 1990 1033.9 1033.0 1037.8 1024.7 1022.2 1014.2 1009.9 1013.0 1015.0 1032.8 1031.9 1037.6 1037.8 DAY 27 7 17 3 16 7 31 29 26 16 14 30 1991 1033.8 1036.2 1028.1 1023.2 1018.7 1014.5 1012.5 1012.7 1022.6 1024.2 1030.6 1032.3 1036.2 DAY 1 15 12 14 25 17 11 22 27 13 24 17 1992 1038.2 1029.0 1031.8 1019.5 1025.3 1013.5 1014.1 1021.4 1022.2 1025.0 1031.9 1029.1 1038.2 DAY 10 16 13 8 2 7 12 31 30 30 4 29 1993 1037.5 1033.1 1030.5 1022.7 1024.4 1021.2 1012.1 1013.6 1021.5 1029.1 1032.9 1030.1 1037.5 DAY 6 17 16 1 9 22 27 24 23 8 30 6 1994 1034.3 1034.7 1027.2 1035.2 1020.8 1011.6 1009.3 1009.8 1024.3 1026.6 1024.1 1034.0 1035.2 DAY 10 18 1 5 18 8 1 7 23 24 3 8 1995 1033.9 1028.9 1030.4 1024.3 1021.0 1014.1 1008.8 1011.3 1020.7 1034.2 1030.3 1035.4 1035.4 DAY 7 12 3 7 26 1 23 24 22 18 16 11 1996 1039.0 1032.3 1023.8 1028.8 1018.8 1014.7 1015.0 1019.2 1018.7 1028.4 1038.5 1036.2 1039.0 DAY 10 4 17 5 7 12 3 30 25 2 18 7 1997 1031.8 1033.5 1034.8 1022.3 1021.4 1011.2 1009.6 1012.1 1020.7 1023.6 1035.8 1031.8 1035.8 DAY 19 8 11 13 16 4 19 21 15 8 8 28 1998 1030.4 1038.3 1028.0 1024.5 1022.9 1014.2 1013.0 1012.1 1019.7 1032.4 1028.4 1033.3 1038.3 DAY 4 23 26 12 3 6 15 25 12 10 24 29 1999 1042.3 1028.1 1028.3 1024.2 1020.3 1014.9 1011.6 1013.1 1018.9 1026.5 1033.2 1036.0 1042.3 DAY 2 12 19 23 9 17 13 20 29 26 30 1 2000 1032.0 1032.0 1028.0 1021.7 1017.7 1016.4 1011.8 1012.5 1016.9 1026.6 1038.1 1029.9 1038.1 DAY 31 29 27 2 5 13 26 23 29 16 17 4 2001 1032.1 1034.9 1030.6 1027.2 1016.9 1015.6 1010.1 1012.9 1021.8 1028.4 1029.3 1030.4 1034.9 DAY 29 10 11 1 18 11 29 12 22 27 20 22 2002 1030.7 1034.1 1035.4 1023.3 1020.4 1015.2 1013.0 1013.4 1017.3 1022.8 1031.9 1038.9 1038.9 DAY 26 19 11 1 17 25 3 31 30 23 18 4 2003 1030.8 1028.6 1032.4 1024.6 1029.6 1017.5 1012.9 1011.8 1022.8 1021.3 1034.6 1041.6 1041.6 DAY 23 13 3 30 1 6 3 4 27 15 25 12 2004 1028.1 1023.5 1033.7 1023.1 1018.7 1017.5 1012.2 1011.2 1019.7 1027.1 1028.6 1035.3 1035.3 DAY 1 5 9 6 22 13 6 18 27 15 30 3 2005 1029.6 1032.0 1023.7 1035.4 1017.8 1014.0 1009.5 1013.2 1015.1 1027.8 1030.9 1036.8 1036.8 DAY 8 17 27 6 19 9 8 27 9 24 27 29 1977-2005 1044.4 1043.3 1043.9 1035.4 1030.3 1022.1 1016.7 1024.1 1025.9 1037.7 1042.4 1042.1 1044.4 YEAR-DAY 83- 8 84-19 85- 5 5- 6 82-11 83- 1 83- 1 80-30 79-24 82-25 83-26 82-10 83- 8 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 90 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF COMPUTED QFF PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1012.3 1013.4 1007.2 1010.1 ****** DAY ** ** ** ** ** ** ** ** 9 4 29 1 1980 1014.1 1017.4 998.7 1000.9 1007.5 1004.5 1004.7 1003.9 1009.1 1010.8 1013.2 1006.7 998.7 DAY 6 12 19 16 23 17 3 20 21 4 10 12 1981 1013.4 1011.2 1001.8 1005.3 1002.2 1003.7 997.9 1007.0 1010.5 1017.4 1012.4 1014.3 997.9 DAY 12 1 13 30 1 16 6 14 17 16 13 19 1982 1011.4 1010.4 ****** 1005.8 1009.4 1006.8 1001.8 1002.4 1012.0 1012.1 1015.9 1017.8 ****** DAY 9 1 ** 28 15 18 31 1 3 1 8 28 1983 1008.3 1008.2 1011.9 1012.0 1008.1 1005.3 1003.3 1004.7 1007.6 1012.4 1013.3 1010.1 1003.3 DAY 24 18 5 25 4 21 23 15 8 4 13 12 1984 1018.5 1012.8 1007.6 1003.7 1002.1 1002.2 1004.0 1003.2 1010.9 1005.7 1009.9 1019.4 1002.1 DAY 9 8 25 10 28 21 16 15 8 18 12 7 1985 1017.6 1002.2 1001.0 1006.8 1007.7 1001.4 1000.1 1003.9 1005.0 1010.9 1016.0 996.9 996.9 DAY 19 6 24 24 22 20 20 8 7 11 10 19 1986 1007.4 1011.8 1015.0 1006.7 1001.2 1000.1 1001.8 1004.8 1009.4 ****** 1013.8 1009.9 ****** DAY 20 26 25 11 3 13 20 15 6 ** 30 1 1987 1005.9 ****** 999.0 1003.5 1003.3 1004.0 ****** ****** ****** ****** ****** ****** ****** DAY 27 ** 14 20 23 19 ** ** ** ** ** ** 1988 1007.9 1007.7 999.1 1004.5 1003.1 995.2 1000.7 1002.0 1005.3 1009.8 1005.0 1001.1 995.2 DAY 29 2 5 30 29 23 15 30 5 21 20 26 1989 1013.0 1009.9 1000.6 1008.7 1003.6 1001.3 ****** ****** 1003.3 ****** 1012.7 1009.0 ****** DAY 3 23 16 14 7 11 ** ** 12 ** 16 5 1990 1012.3 1001.5 1011.8 1004.1 999.4 995.9 1000.6 1000.7 1004.3 1010.1 1008.1 1014.7 995.9 DAY 5 16 14 29 13 27 27 7 14 26 1 18 1991 1011.6 1009.8 1003.8 1002.9 997.7 999.6 996.7 1000.2 1004.5 1013.2 1011.5 1010.1 996.7 DAY 25 4 7 10 22 11 8 6 3 5 5 10 1992 1004.9 1006.1 999.1 1006.2 1004.0 998.9 1000.7 1003.1 1008.0 1011.8 1007.4 1013.5 998.9 DAY 1 25 31 15 19 28 24 1 18 11 25 14 1993 1008.7 1010.5 1006.4 1005.8 1004.3 1002.3 1002.0 1001.9 1003.5 1009.7 1007.7 1016.5 1001.9 DAY 9 21 22 9 23 18 1 12 14 1 11 5 1994 1011.6 1005.2 1006.3 1003.9 1001.6 999.3 997.7 999.5 1009.8 1013.6 1001.5 999.6 997.7 DAY 5 1 15 2 1 16 20 2 1 15 26 4 1995 1008.2 1009.3 1002.8 1004.5 1006.4 995.8 993.3 999.7 1003.2 1008.8 1007.7 1017.2 993.3 DAY 17 9 26 20 7 30 16 3 19 4 26 22 1996 1011.3 1009.0 1003.8 1002.3 1004.8 1001.1 1002.1 1001.1 999.9 1001.9 1019.1 1010.5 999.9 DAY 7 10 26 13 30 5 7 8 9 27 2 25 1997 1004.5 1012.2 1001.6 1002.1 1005.1 1001.1 998.2 999.1 1000.3 1008.0 1008.3 1007.4 998.2 DAY 16 23 25 5 4 23 16 14 2 3 5 10 1998 1004.8 1004.7 993.9 1000.1 997.8 1003.1 995.3 1003.3 1004.4 1006.5 1012.7 1012.2 993.9 DAY 13 8 30 21 22 27 6 13 3 2 9 21 1999 1010.5 1003.8 1005.6 1006.2 999.2 994.7 1001.3 1001.4 1003.3 1011.0 1010.7 1013.3 994.7 DAY 10 20 21 14 14 25 4 6 16 12 25 14 2000 1004.2 1009.4 1005.7 1002.6 1000.4 1001.9 1000.4 999.9 1000.7 1012.3 1016.0 1011.6 999.9 DAY 21 7 25 10 27 8 11 3 1 1 6 21 2001 1018.3 998.1 1001.6 1005.8 999.7 996.1 998.9 998.7 1003.5 1009.0 1003.2 1010.5 996.1 DAY 4 21 24 26 9 18 10 31 8 25 18 20 2002 1004.0 1003.6 1000.7 997.9 1002.9 997.7 999.0 997.3 1006.5 1008.4 1009.8 1007.3 997.3 DAY 8 27 21 4 25 20 25 17 11 22 12 22 2003 1010.3 1002.9 1004.1 1005.6 1004.6 1000.5 997.4 1004.8 1003.4 1005.2 1011.9 1010.0 997.4 DAY 29 19 26 21 30 18 8 13 7 27 1 7 2004 1003.7 1000.5 1007.6 1001.6 997.5 1002.0 1001.9 998.1 1006.9 1010.3 1004.7 1014.4 997.5 DAY 14 15 31 24 13 10 10 12 6 22 18 10 2005 1003.5 1006.4 1005.4 1005.0 1000.8 997.6 994.7 998.8 1003.7 1007.5 1012.6 1005.7 994.7 DAY 23 2 24 27 4 20 6 8 5 20 9 24 1977-2005 1003.5 998.1 993.9 997.9 997.5 994.7 993.3 997.3 999.9 1001.9 1001.5 996.9 993.3 YEAR-DAY 5-23 1-21 98-30 2- 4 4-13 99-25 95-16 2-17 96- 9 96-27 94-26 85-19 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 91 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFE PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 899.0 ****** 894.5 890.9 889.6 892.5 897.2 898.4 897.4 897.1 ****** 1978 896.9 897.7 894.4 891.2 892.9 891.0 892.0 892.2 894.2 899.1 899.4 895.4 894.7 1979 897.6 894.3 894.9 894.0 895.8 893.6 891.7 893.2 897.8 897.7 900.4 896.0 895.6 1980 895.8 896.7 894.3 892.1 893.9 892.3 891.4 892.6 895.0 896.9 897.4 896.5 894.6 1981 895.8 894.6 892.6 893.4 893.6 893.2 891.5 893.0 897.2 900.2 896.6 896.9 894.9 1982 896.1 894.6 893.9 894.3 897.4 893.2 890.7 892.4 897.2 897.2 899.1 897.9 895.3 1983 896.3 894.9 895.4 894.2 893.2 893.2 890.3 891.6 894.9 898.6 898.9 898.8 895.0 1984 896.9 900.8 894.3 892.5 892.8 892.5 890.7 890.5 896.3 899.3 897.9 901.1 895.5 1985 896.1 890.0 897.9 892.8 893.9 891.2 888.6 891.0 891.9 894.4 895.8 893.2 893.1 1986 892.5 891.4 893.7 892.4 890.4 887.2 889.7 891.0 893.8 895.3 894.3 892.9 892.1 1987 893.5 893.5 888.3 891.5 891.4 890.0 889.1 889.3 892.9 897.4 896.3 893.2 892.2 1988 892.9 892.7 888.2 891.4 890.9 887.3 887.1 888.7 892.2 895.1 893.4 891.2 890.9 1989 892.7 895.4 890.0 892.9 891.9 888.6 888.9 889.2 890.8 894.5 894.1 892.2 891.8 1990 893.6 891.0 894.3 889.5 890.4 888.0 888.2 889.5 890.7 894.6 895.1 894.4 891.6 1991 893.2 893.6 891.6 891.1 888.5 889.3 887.2 888.8 892.8 895.2 896.2 891.4 891.6 1992 891.9 888.9 891.5 889.7 891.6 888.0 888.3 891.5 893.0 894.1 894.0 892.7 891.3 1993 893.4 893.5 891.9 890.2 890.4 889.0 889.2 890.7 891.6 897.7 895.0 895.6 892.3 1994 892.9 891.5 891.6 892.1 890.4 887.4 886.6 888.1 895.3 896.3 891.9 893.8 891.5 1995 894.3 893.0 891.6 890.0 891.9 888.3 886.1 888.6 890.8 895.4 893.0 895.5 891.5 1996 895.2 892.2 890.3 891.7 891.6 889.5 889.5 889.9 889.3 894.0 898.2 894.8 892.2 1997 891.9 893.3 889.0 888.8 891.8 888.1 886.7 888.9 892.4 893.2 895.6 892.7 891.0 1998 891.3 892.4 890.1 890.4 891.6 891.0 887.8 890.3 891.5 895.3 895.4 896.6 892.0 1999 894.0 890.9 891.0 891.7 891.2 888.5 887.6 889.0 891.0 893.6 894.1 896.8 891.6 2000 891.8 892.8 891.2 890.1 889.0 889.0 889.1 889.7 891.1 895.6 897.2 894.0 891.7 2001 895.8 892.2 891.4 890.5 888.7 888.1 888.1 889.9 891.8 894.2 893.4 894.5 891.5 2002 893.5 892.8 891.1 888.6 890.2 888.4 889.5 888.0 892.3 893.8 895.8 893.5 891.5 2003 893.1 889.6 890.9 891.7 892.3 888.9 886.8 890.1 891.9 892.8 895.1 895.3 891.5 2004 889.7 891.3 894.2 890.7 888.3 889.0 888.7 888.4 893.3 895.9 892.9 893.5 891.3 2005 891.6 891.6 889.3 892.8 890.7 888.7 887.9 889.0 891.0 894.9 895.6 895.6 891.5 MEAN 893.9 893.1 892.3 891.5 891.8 889.8 888.9 890.3 893.1 895.9 895.8 894.9 892.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 92 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFE PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 909.8 ****** 898.9 894.4 893.6 897.5 905.4 906.7 904.5 906.9 ****** DAY ** ** 9 ** 29 5 21 23 30 23 27 13 1978 907.0 907.4 901.8 898.8 900.6 902.1 897.4 897.1 899.7 906.4 906.2 908.7 908.7 DAY 13 6 19 13 3 8 7 21 26 10 5 24 1979 909.2 902.0 903.3 905.4 903.0 900.6 897.1 899.3 902.4 906.4 907.7 905.3 909.2 DAY 18 13 5 27 27 10 20 29 23 9 11 4 1980 901.8 903.3 900.6 899.9 902.3 899.1 897.6 902.1 901.3 901.1 905.3 904.5 905.3 DAY 9 2 15 1 16 11 18 30 26 9 3 20 1981 904.8 900.8 903.7 900.9 903.7 899.5 896.1 896.7 903.8 906.7 903.3 905.1 906.7 DAY 29 28 8 10 21 9 30 3 27 29 16 1 1982 904.7 904.8 899.8 905.3 906.4 898.2 896.6 897.0 902.9 907.6 905.5 906.4 907.6 DAY 19 11 16 4 10 7 8 14 20 25 18 10 1983 909.2 903.0 902.5 901.1 898.6 900.7 897.0 897.5 899.6 904.6 911.0 907.6 911.0 DAY 8 10 14 29 16 1 1 17 28 28 26 4 1984 905.2 908.3 901.8 899.2 898.8 897.4 894.8 894.7 900.2 907.2 907.1 908.8 908.8 DAY 4 19 4 4 12 12 3 29 22 21 27 18 1985 903.7 899.7 909.8 906.0 902.5 895.6 892.4 894.8 900.1 901.6 901.9 902.0 909.8 DAY 14 24 5 17 12 10 16 18 22 31 17 14 1986 901.5 898.2 899.4 898.6 898.2 891.9 893.2 893.9 897.5 901.0 902.8 902.4 902.8 DAY 28 22 28 5 18 3 3 24 22 15 16 7 1987 904.4 902.5 898.0 898.4 897.6 894.4 892.8 895.1 898.0 903.6 907.2 906.2 907.2 DAY 21 1 22 30 13 6 10 8 24 15 30 1 1988 902.3 902.5 899.8 901.3 897.7 892.1 890.6 895.2 898.6 902.2 901.4 899.7 902.5 DAY 3 7 17 8 4 8 27 21 21 28 6 5 1989 902.0 903.2 896.2 897.3 897.2 892.5 892.8 894.7 900.0 902.0 900.9 896.8 903.2 DAY 22 8 8 8 21 2 10 19 23 24 8 18 1990 901.6 900.4 904.8 897.3 897.6 891.7 891.6 893.4 895.2 904.8 903.7 902.2 904.8 DAY 26 8 17 3 15 7 17 29 16 15 22 29 1991 900.6 902.7 898.3 897.8 895.2 895.6 893.6 892.5 898.1 899.4 901.1 899.5 902.7 DAY 11 15 12 28 25 17 11 27 16 13 27 17 1992 902.3 897.8 899.9 893.2 898.4 893.3 893.2 897.5 898.1 899.7 904.1 898.7 904.1 DAY 10 16 12 23 2 12 7 31 30 29 4 1 1993 905.0 902.5 900.5 896.9 898.5 899.0 894.3 893.6 898.2 903.0 902.6 900.9 905.0 DAY 6 9 16 1 9 22 27 24 23 20 22 6 1994 902.1 903.1 898.4 903.9 897.2 892.0 890.0 891.8 901.3 901.0 899.7 901.4 903.9 DAY 9 18 31 5 18 8 13 15 23 23 2 22 1995 903.9 900.4 900.8 896.8 898.1 893.4 890.3 893.1 896.9 905.0 902.2 903.3 905.0 DAY 7 12 3 7 26 1 23 24 13 25 15 10 1996 905.1 898.8 894.6 900.0 896.0 894.5 896.5 898.5 895.5 903.6 907.6 902.4 907.6 DAY 10 13 16 4 7 11 3 29 25 2 18 7 1997 900.5 899.8 903.7 896.0 898.0 892.2 892.6 893.0 898.0 899.8 906.5 900.4 906.5 DAY 19 21 11 20 16 8 19 24 7 9 7 28 1998 899.3 904.5 900.8 900.5 898.6 895.7 894.4 893.6 897.5 905.3 901.8 905.1 905.3 DAY 22 23 26 12 9 5 15 25 27 9 21 29 1999 907.7 898.9 898.1 897.6 895.5 894.9 891.3 894.8 895.7 899.4 902.4 904.7 907.7 DAY 2 11 1 22 28 16 18 20 5 26 30 24 2000 899.3 903.0 898.7 895.8 895.3 894.4 893.8 893.9 896.0 899.3 906.5 901.7 906.5 DAY 31 29 27 2 5 16 30 8 29 30 17 4 2001 900.7 905.0 900.4 901.5 894.7 894.0 891.8 895.4 897.9 902.7 899.8 900.6 905.0 DAY 26 9 1 1 18 2 29 5 22 10 2 9 2002 901.3 901.6 903.4 897.4 897.2 895.1 893.9 894.0 896.8 898.3 903.5 905.5 905.5 DAY 27 19 10 1 17 25 3 31 21 10 18 3 2003 898.4 896.1 900.3 897.7 901.5 895.8 893.4 893.1 899.4 899.2 903.4 905.6 905.6 DAY 11 24 2 30 1 6 3 4 26 15 25 12 2004 896.4 894.9 904.4 896.8 894.7 896.8 893.3 892.2 897.8 901.3 899.2 904.3 904.4 DAY 12 10 9 12 22 13 6 17 21 27 30 3 2005 900.1 900.1 894.4 904.3 896.1 893.1 891.5 893.3 894.9 900.9 900.7 904.3 904.3 DAY 8 16 16 6 19 4 8 27 9 23 15 29 1977-2005 909.2 908.3 909.8 906.0 906.4 902.1 897.6 902.1 905.4 907.6 911.0 908.8 911.0 YEAR-DAY 79-18 84-19 77- 9 85-17 82-10 78- 8 80-18 80-30 77-30 82-25 83-26 84-18 83-26 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 93 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFE PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 890.2 ****** 889.1 887.1 886.0 884.3 892.7 888.2 888.1 888.3 ****** DAY ** ** 27 ** 25 19 11 17 12 5 18 22 1978 883.5 890.4 882.2 882.0 884.0 881.0 883.2 887.7 889.6 893.5 889.8 883.0 881.0 DAY 21 17 13 25 30 21 1 14 2 29 8 16 1979 884.8 885.9 884.9 887.3 887.7 886.9 885.0 887.3 892.6 891.0 884.9 885.1 884.8 DAY 6 11 27 12 17 23 6 14 5 4 29 1 1980 888.8 888.1 879.1 882.4 889.6 887.0 888.1 886.9 887.8 890.3 891.7 885.0 879.1 DAY 6 25 19 16 23 17 3 20 21 4 9 12 1981 885.2 885.7 881.4 882.5 883.1 886.1 886.9 889.3 892.1 893.9 889.4 890.4 881.4 DAY 3 1 13 30 1 16 1 13 12 16 5 18 1982 886.7 884.3 885.7 886.2 890.1 889.1 884.0 885.4 893.7 890.4 890.2 889.6 884.0 DAY 29 14 19 18 15 28 30 1 13 1 6 28 1983 883.6 884.5 888.2 890.0 888.2 887.6 882.5 887.0 889.4 890.2 891.5 887.1 882.5 DAY 24 18 5 3 4 21 27 28 8 4 12 12 1984 890.7 885.3 883.6 886.3 884.9 886.3 887.6 886.5 890.6 887.2 886.0 890.3 883.6 DAY 8 8 16 25 29 21 15 15 8 18 12 14 1985 889.8 879.0 880.0 887.0 887.8 885.8 884.6 886.7 886.3 888.8 891.8 876.9 876.9 DAY 2 6 24 24 1 20 19 8 7 18 7 19 1986 881.2 886.6 887.9 886.3 883.8 882.9 885.8 887.3 890.1 890.6 885.3 883.8 881.2 DAY 20 6 25 11 3 17 20 15 6 6 9 30 1987 884.4 885.5 876.8 883.0 885.3 886.8 883.2 884.8 887.3 889.5 884.7 882.8 876.8 DAY 7 9 14 19 23 2 8 18 5 4 7 24 1988 883.6 884.2 879.4 882.3 884.5 880.0 883.8 883.2 887.0 888.2 884.5 875.7 875.7 DAY 29 2 9 30 1 23 1 29 5 30 20 27 1989 881.2 883.8 879.7 887.7 885.6 883.5 884.5 882.5 885.5 884.9 888.9 885.4 879.7 DAY 17 23 16 14 7 10 6 1 12 2 16 5 1990 885.8 879.8 888.2 882.3 879.2 880.6 884.5 884.0 886.3 888.1 886.0 886.5 879.2 DAY 23 16 14 15 13 27 27 7 5 14 1 25 1991 884.5 884.7 880.2 882.0 879.8 881.9 880.8 883.9 886.6 890.8 889.6 884.3 879.8 DAY 25 4 7 10 22 11 7 11 7 4 5 1 1992 883.4 882.6 878.9 885.3 884.3 882.0 884.6 886.6 888.1 889.0 885.6 888.1 878.9 DAY 1 21 31 18 10 27 10 1 17 24 26 28 1993 881.2 886.1 882.6 884.8 885.8 884.7 885.9 885.1 886.4 887.8 884.6 888.4 881.2 DAY 9 21 22 14 14 4 1 12 3 1 10 5 1994 883.5 878.7 883.2 882.7 881.9 882.8 882.2 883.3 890.7 889.1 880.3 878.7 878.7 DAY 16 1 15 2 1 16 20 2 1 14 26 4 1995 885.6 882.9 881.3 885.7 886.0 882.0 880.6 884.6 884.0 888.5 884.7 889.7 880.6 DAY 17 5 26 19 7 30 16 22 19 11 26 22 1996 888.5 880.9 881.8 882.5 887.2 884.9 885.4 883.8 883.8 882.4 892.5 886.0 880.9 DAY 6 5 26 13 29 5 7 8 8 27 29 25 1997 882.1 886.0 879.4 880.8 883.9 884.7 882.5 883.3 882.3 889.1 888.9 883.3 879.4 DAY 16 22 25 5 4 25 16 5 2 6 5 10 1998 877.9 879.2 877.8 882.5 882.7 887.5 879.3 886.7 886.7 887.1 889.5 887.7 877.8 DAY 13 14 30 21 22 24 5 23 24 1 1 21 1999 885.5 880.1 884.4 884.1 884.9 878.0 884.4 885.6 885.1 889.4 886.3 888.3 878.0 DAY 9 20 21 14 14 25 12 6 16 31 26 14 2000 880.3 883.8 885.3 885.8 884.1 883.6 884.9 884.3 884.0 891.9 892.0 887.1 880.3 DAY 21 7 9 10 20 26 8 3 1 12 6 15 2001 891.0 876.0 881.2 884.0 881.3 880.4 883.5 882.8 886.3 889.1 883.0 885.8 876.0 DAY 4 21 25 12 9 6 18 31 8 6 17 5 2002 883.6 883.8 881.5 876.4 885.4 881.1 882.2 881.4 888.1 888.6 885.8 881.8 876.4 DAY 8 25 21 4 12 20 24 17 10 22 12 21 2003 884.3 876.8 880.5 885.6 886.1 883.9 882.0 887.7 886.1 884.5 887.2 886.3 876.8 DAY 28 19 26 21 30 30 8 14 7 27 21 19 2004 881.7 880.6 886.4 881.3 878.5 884.1 884.5 881.4 888.0 888.6 882.4 886.2 878.5 DAY 23 15 31 17 13 17 10 12 10 22 23 15 2005 876.0 883.7 880.5 884.5 882.4 880.9 880.5 883.7 886.6 886.1 888.9 883.7 876.0 DAY 23 2 24 27 5 20 6 8 12 20 9 26 1977-2005 876.0 876.0 876.8 876.4 878.5 878.0 879.3 881.4 882.3 882.4 880.3 875.7 875.7 YEAR-DAY 5-23 1-21 87-14 2- 4 4-13 99-25 98- 5 2-17 97- 2 96-27 94-26 88-27 88-27 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 94 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QNH PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1024.2 ****** 1019.2 1015.2 1013.8 1017.0 1022.2 1023.5 1022.5 1022.2 ****** 1978 1021.9 1022.7 1019.1 1015.6 1017.4 1015.3 1016.5 1016.7 1018.9 1024.3 1024.7 1020.2 1019.4 1979 1022.6 1019.0 1019.7 1018.6 1020.7 1018.3 1016.1 1017.7 1022.8 1022.7 1025.7 1020.9 1020.4 1980 1020.7 1021.7 1019.1 1016.6 1018.5 1016.8 1015.8 1017.1 1019.7 1021.8 1022.5 1021.5 1019.3 1981 1020.6 1019.3 1017.1 1018.0 1018.2 1017.8 1015.9 1017.6 1022.3 1025.5 1021.5 1021.9 1019.7 1982 1021.0 1019.3 1018.5 1019.0 1022.4 1017.8 1014.9 1016.9 1022.2 1022.3 1024.3 1023.0 1020.1 1983 1021.2 1019.6 1020.3 1018.9 1017.8 1017.7 1014.5 1016.0 1019.7 1023.8 1024.2 1024.0 1019.8 1984 1021.9 1026.2 1019.0 1017.0 1017.4 1017.0 1015.0 1014.8 1021.2 1024.6 1023.0 1026.5 1020.3 1985 1021.0 1014.2 1023.0 1017.4 1018.5 1015.6 1012.7 1015.4 1016.3 1019.1 1020.7 1017.8 1017.6 1986 1017.0 1015.7 1018.4 1016.8 1014.7 1011.2 1013.9 1015.3 1018.5 1020.2 1019.0 1017.5 1016.5 1987 1018.1 1018.1 1012.3 1015.9 1015.8 1014.2 1013.2 1013.5 1017.5 1022.5 1021.2 1017.8 1016.7 1988 1017.4 1017.2 1012.2 1015.8 1015.2 1011.2 1011.0 1012.8 1016.7 1019.9 1018.0 1015.6 1015.3 1989 1017.2 1020.2 1014.3 1017.4 1016.4 1012.7 1013.1 1013.4 1015.1 1019.2 1018.8 1016.6 1016.2 1990 1018.3 1015.4 1019.0 1013.7 1014.7 1012.0 1012.2 1013.6 1014.9 1019.4 1019.9 1019.1 1016.0 1991 1017.8 1018.2 1016.0 1015.5 1012.6 1013.5 1011.1 1012.9 1017.3 1020.0 1021.1 1015.7 1016.0 1992 1016.3 1013.0 1015.9 1013.9 1016.0 1012.0 1012.3 1015.9 1017.6 1018.7 1018.7 1017.2 1015.6 1993 1017.9 1018.1 1016.3 1014.4 1014.7 1013.1 1013.3 1015.0 1016.0 1022.8 1019.7 1020.4 1016.8 1994 1017.4 1015.9 1016.0 1016.5 1014.6 1011.4 1010.4 1012.1 1020.1 1021.3 1016.3 1018.5 1015.9 1995 1018.9 1017.5 1016.0 1014.2 1016.4 1012.3 1009.9 1012.6 1015.1 1020.2 1017.6 1020.3 1015.9 1996 1020.0 1016.6 1014.5 1016.2 1016.0 1013.6 1013.7 1014.1 1013.5 1018.7 1023.3 1019.6 1016.7 1997 1016.3 1017.9 1013.1 1012.9 1016.2 1012.1 1010.5 1013.0 1016.9 1017.8 1020.5 1017.3 1015.4 1998 1015.7 1016.9 1014.3 1014.7 1016.0 1015.3 1011.7 1014.6 1015.9 1020.1 1020.3 1021.6 1016.4 1999 1018.7 1015.2 1015.4 1016.1 1015.6 1012.6 1011.6 1013.1 1015.3 1018.3 1018.8 1021.8 1016.0 2000 1016.3 1017.4 1015.5 1014.3 1013.1 1013.1 1013.2 1013.9 1015.4 1020.4 1022.2 1018.7 1016.1 2001 1020.7 1016.7 1015.7 1014.7 1012.8 1012.1 1012.2 1014.1 1016.2 1018.9 1018.0 1019.3 1015.9 2002 1018.1 1017.3 1015.4 1012.7 1014.5 1012.5 1013.6 1012.0 1016.8 1018.4 1020.7 1018.1 1015.8 2003 1017.7 1013.8 1015.3 1016.1 1016.7 1013.0 1010.7 1014.4 1016.3 1017.3 1019.9 1020.1 1015.9 2004 1013.9 1015.7 1018.9 1015.0 1012.3 1013.1 1012.8 1012.5 1017.9 1020.8 1017.4 1018.1 1015.7 2005 1016.0 1016.0 1013.5 1017.3 1015.0 1012.8 1011.9 1013.1 1015.3 1019.6 1020.4 1020.4 1015.9 MEAN 1018.6 1017.7 1016.8 1015.9 1016.2 1014.0 1013.0 1014.5 1017.7 1020.8 1020.7 1019.7 1017.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 95 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QNH PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1036.2 ****** 1024.1 1019.1 1018.2 1022.6 1031.3 1032.8 1030.3 1033.0 ****** DAY ** ** 9 ** 29 5 21 23 30 23 27 13 1978 1033.1 1033.6 1027.3 1024.0 1026.0 1027.7 1022.5 1022.1 1025.0 1032.5 1032.2 1035.0 1035.0 DAY 13 6 19 13 3 8 7 21 26 10 5 24 1979 1035.6 1027.6 1029.0 1031.3 1028.7 1026.0 1022.1 1024.6 1028.0 1032.5 1033.9 1031.2 1035.6 DAY 18 13 5 27 27 10 20 29 23 9 11 4 1980 1027.3 1029.0 1026.0 1025.2 1027.9 1024.3 1022.7 1027.7 1026.8 1026.6 1031.2 1030.3 1031.2 DAY 9 2 15 1 16 11 18 30 26 9 3 20 1981 1030.7 1026.2 1029.5 1026.3 1029.5 1024.8 1021.0 1021.7 1029.6 1032.8 1029.0 1031.0 1032.8 DAY 29 28 8 10 21 9 30 3 27 29 16 1 1982 1030.6 1030.7 1025.1 1031.2 1032.5 1023.3 1021.6 1022.0 1028.6 1033.8 1031.5 1032.5 1033.8 DAY 19 11 16 4 10 7 8 14 20 25 18 10 1983 1035.6 1028.7 1028.1 1026.6 1023.8 1026.1 1022.0 1022.6 1024.9 1030.5 1037.6 1033.8 1037.6 DAY 8 10 14 29 16 1 1 17 28 28 26 4 1984 1031.1 1034.6 1027.3 1024.5 1024.0 1022.5 1019.6 1019.4 1025.6 1033.3 1033.2 1035.1 1035.1 DAY 4 19 4 4 12 12 3 29 22 21 27 18 1985 1029.5 1025.0 1036.2 1032.0 1028.1 1020.5 1016.9 1019.6 1025.5 1027.1 1027.5 1027.6 1036.2 DAY 14 24 5 17 12 10 16 18 22 31 17 14 1986 1027.0 1023.3 1024.7 1023.8 1023.3 1016.3 1017.8 1018.6 1022.6 1026.5 1028.5 1028.0 1028.5 DAY 28 22 28 5 18 3 3 24 22 15 16 7 1987 1030.2 1028.1 1023.1 1023.6 1022.7 1019.1 1017.3 1019.9 1023.1 1029.3 1033.3 1032.2 1033.3 DAY 21 1 22 30 13 6 10 8 24 15 30 1 1988 1027.9 1028.1 1025.1 1026.8 1022.8 1016.6 1014.9 1020.0 1023.8 1027.8 1026.9 1025.0 1028.1 DAY 3 7 17 8 4 8 27 21 21 28 6 5 1989 1027.6 1028.9 1021.1 1022.3 1022.2 1017.0 1017.3 1019.4 1025.3 1027.6 1026.3 1021.8 1028.9 DAY 22 8 8 8 21 2 10 19 23 24 8 18 1990 1027.1 1025.8 1030.7 1022.3 1022.7 1016.1 1016.0 1018.0 1020.0 1030.7 1029.5 1027.8 1030.7 DAY 26 8 17 3 15 7 17 29 16 15 22 29 1991 1026.0 1028.3 1023.5 1022.9 1020.0 1020.5 1018.2 1017.0 1023.2 1024.7 1026.6 1024.8 1028.3 DAY 11 15 12 28 25 17 11 27 16 13 27 17 1992 1027.9 1022.9 1025.2 1017.8 1023.6 1017.9 1017.8 1022.6 1023.2 1025.0 1029.9 1023.9 1029.9 DAY 10 16 12 23 2 12 7 31 30 29 4 1 1993 1030.9 1028.1 1025.9 1021.9 1023.7 1024.2 1019.0 1018.2 1023.3 1028.7 1028.2 1026.3 1030.9 DAY 6 9 16 1 9 22 27 24 23 20 22 6 1994 1027.7 1028.8 1023.6 1029.7 1022.2 1016.4 1014.2 1016.2 1026.8 1026.5 1025.0 1026.9 1029.7 DAY 9 18 31 5 18 8 13 15 23 23 2 22 1995 1029.7 1025.8 1026.2 1021.8 1023.2 1018.0 1014.6 1017.7 1021.9 1030.9 1027.8 1029.0 1030.9 DAY 7 12 3 7 26 1 23 24 13 25 15 10 1996 1031.0 1024.0 1019.3 1025.3 1020.9 1019.2 1021.5 1023.7 1020.3 1029.3 1033.8 1028.0 1033.8 DAY 10 13 16 4 7 11 3 29 25 2 18 7 1997 1025.9 1025.1 1029.5 1020.9 1023.1 1016.7 1017.1 1017.6 1023.1 1025.1 1032.6 1025.8 1032.6 DAY 19 21 11 20 16 8 19 24 7 9 7 28 1998 1024.6 1030.3 1026.2 1025.9 1023.8 1020.6 1019.1 1018.2 1022.6 1031.2 1027.3 1031.0 1031.2 DAY 22 23 26 12 9 5 15 25 27 9 21 29 1999 1033.9 1024.1 1023.2 1022.7 1020.3 1019.7 1015.7 1019.6 1020.6 1024.7 1028.0 1030.6 1033.9 DAY 2 11 1 22 28 16 18 20 5 26 30 24 2000 1024.6 1028.7 1023.9 1020.7 1020.1 1019.1 1018.4 1018.6 1020.9 1024.6 1032.6 1027.2 1032.6 DAY 31 29 27 2 5 16 30 8 29 30 17 4 2001 1026.1 1030.9 1025.8 1027.0 1019.4 1018.7 1016.2 1020.2 1023.0 1028.3 1025.1 1026.0 1030.9 DAY 26 9 1 1 18 2 29 5 22 10 2 9 2002 1026.8 1027.1 1029.1 1022.5 1022.2 1019.9 1018.6 1018.7 1021.8 1023.5 1029.2 1031.5 1031.5 DAY 27 19 10 1 17 25 3 31 21 10 18 3 2003 1023.6 1021.0 1025.7 1022.8 1027.0 1020.7 1018.0 1017.7 1024.7 1024.5 1029.1 1031.6 1031.6 DAY 11 24 2 30 1 6 3 4 26 15 25 12 2004 1021.3 1019.7 1030.2 1021.8 1019.4 1021.8 1017.9 1016.7 1022.9 1026.8 1024.5 1030.1 1030.2 DAY 12 10 9 12 22 13 6 17 21 27 30 3 2005 1025.5 1025.5 1019.1 1030.1 1021.0 1017.7 1015.9 1017.9 1019.7 1026.3 1026.1 1030.1 1030.1 DAY 8 16 16 6 19 4 8 27 9 23 15 29 1977-2005 1035.6 1034.6 1036.2 1032.0 1032.5 1027.7 1022.7 1027.7 1031.3 1033.8 1037.6 1035.1 1037.6 YEAR-DAY 79-18 84-19 77- 9 85-17 82-10 78- 8 80-18 80-30 77-30 82-25 83-26 84-18 83-26 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 96 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QNH PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1014.4 ****** 1013.2 1011.0 1009.8 1007.9 1017.2 1012.2 1012.1 1012.3 ****** DAY ** ** 27 ** 25 19 11 17 12 5 18 22 1978 1007.0 1014.7 1005.6 1005.3 1007.6 1004.2 1006.7 1011.7 1013.8 1018.1 1014.0 1006.4 1004.2 DAY 21 17 13 25 30 21 1 14 2 29 8 16 1979 1008.4 1009.7 1008.6 1011.2 1011.7 1010.8 1008.7 1011.2 1017.1 1015.3 1008.6 1008.8 1008.4 DAY 6 11 27 12 17 23 6 14 5 4 29 1 1980 1012.9 1012.1 1002.1 1005.8 1013.8 1010.9 1012.1 1010.8 1011.8 1014.6 1016.1 1008.7 1002.1 DAY 6 25 19 16 23 17 3 20 21 4 9 12 1981 1008.9 1009.4 1004.7 1005.9 1006.6 1009.9 1010.8 1013.4 1016.6 1018.6 1013.6 1014.7 1004.7 DAY 3 1 13 30 1 16 1 13 12 16 5 18 1982 1010.6 1007.9 1009.4 1010.0 1014.3 1013.2 1007.6 1009.1 1018.3 1014.7 1014.4 1013.8 1007.6 DAY 29 14 19 18 15 28 30 1 13 1 6 28 1983 1007.1 1008.1 1012.2 1014.2 1012.2 1011.6 1005.9 1010.9 1013.6 1014.4 1015.9 1011.0 1005.9 DAY 24 18 5 3 4 21 27 28 8 4 12 12 1984 1015.0 1009.0 1007.1 1010.1 1008.6 1010.1 1011.6 1010.3 1014.9 1011.1 1009.8 1014.6 1007.1 DAY 8 8 16 25 29 21 15 15 8 18 12 14 1985 1014.0 1002.0 1003.1 1010.9 1011.8 1009.6 1008.2 1010.6 1010.1 1012.9 1016.2 999.7 999.7 DAY 2 6 24 24 1 20 19 8 7 18 7 19 1986 1004.4 1010.4 1011.9 1010.1 1007.3 1006.3 1009.6 1011.2 1014.3 1014.9 1009.0 1007.3 1004.4 DAY 20 6 25 11 3 17 20 15 6 6 9 30 1987 1008.0 1009.2 999.5 1006.4 1009.0 1010.7 1006.7 1008.4 1011.2 1013.7 1008.3 1006.2 999.5 DAY 7 9 14 19 23 2 8 18 5 4 7 24 1988 1007.1 1007.8 1002.4 1005.7 1008.1 1003.1 1007.3 1006.7 1010.9 1012.2 1008.1 998.3 998.3 DAY 29 2 9 30 1 23 1 29 5 30 20 27 1989 1004.4 1007.3 1002.8 1011.7 1009.3 1007.0 1008.1 1005.9 1009.2 1008.6 1013.0 1009.1 1002.8 DAY 17 23 16 14 7 10 6 1 12 2 16 5 1990 1009.6 1002.9 1012.2 1005.7 1002.2 1003.8 1008.1 1007.6 1010.1 1012.1 1009.8 1010.3 1002.2 DAY 23 16 14 15 13 27 27 7 5 14 1 25 1991 1008.1 1008.3 1003.3 1005.3 1002.9 1005.2 1004.0 1007.4 1010.4 1015.1 1013.8 1007.9 1002.9 DAY 25 4 7 10 22 11 7 11 7 4 5 1 1992 1006.9 1006.0 1001.9 1009.0 1007.9 1005.3 1008.2 1010.4 1012.1 1013.1 1009.3 1012.1 1001.9 DAY 1 21 31 18 10 27 10 1 17 24 26 28 1993 1004.4 1009.9 1006.0 1008.4 1009.6 1008.3 1009.7 1008.8 1010.2 1011.8 1008.2 1012.4 1004.4 DAY 9 21 22 14 14 4 1 12 3 1 10 5 1994 1007.0 1001.7 1006.7 1006.1 1005.2 1006.2 1005.6 1006.8 1015.0 1013.2 1003.4 1001.7 1001.7 DAY 16 1 15 2 1 16 20 2 1 14 26 4 1995 1009.3 1006.3 1004.5 1009.4 1009.8 1005.3 1003.8 1008.2 1007.6 1012.6 1008.3 1013.9 1003.8 DAY 17 5 26 19 7 30 16 22 19 11 26 22 1996 1012.6 1004.1 1005.1 1005.9 1011.1 1008.6 1009.1 1007.3 1007.3 1005.8 1017.0 1009.8 1004.1 DAY 6 5 26 13 29 5 7 8 8 27 29 25 1997 1005.4 1009.8 1002.4 1004.0 1007.4 1008.3 1005.9 1006.8 1005.7 1013.2 1013.0 1006.8 1002.4 DAY 16 22 25 5 4 25 16 5 2 6 5 10 1998 1000.8 1002.2 1000.7 1005.9 1006.1 1011.4 1002.3 1010.6 1010.6 1011.0 1013.7 1011.7 1000.7 DAY 13 14 30 21 22 24 5 23 24 1 1 21 1999 1009.2 1003.2 1008.0 1007.7 1008.6 1000.9 1008.0 1009.3 1008.8 1013.6 1010.1 1012.3 1000.9 DAY 9 20 21 14 14 25 12 6 16 31 26 14 2000 1003.4 1007.3 1009.0 1009.6 1007.7 1007.1 1008.6 1007.9 1007.6 1016.3 1016.4 1011.0 1003.4 DAY 21 7 9 10 20 26 8 3 1 12 6 15 2001 1015.3 998.7 1004.4 1007.6 1004.5 1003.5 1007.0 1006.2 1010.1 1013.2 1006.4 1009.6 998.7 DAY 4 21 25 12 9 6 18 31 8 6 17 5 2002 1007.1 1007.3 1004.8 999.1 1009.1 1004.3 1005.6 1004.7 1012.1 1012.7 1009.6 1005.1 999.1 DAY 8 25 21 4 12 20 24 17 10 22 12 21 2003 1007.9 999.5 1003.7 1009.3 1009.9 1007.4 1005.3 1011.7 1009.9 1008.1 1011.1 1010.1 999.5 DAY 28 19 26 21 30 30 8 14 7 27 21 19 2004 1005.0 1003.8 1010.2 1004.5 1001.4 1007.7 1008.1 1004.7 1012.0 1012.7 1005.8 1010.0 1001.4 DAY 23 15 31 17 13 17 10 12 10 22 23 15 2005 998.7 1007.2 1003.7 1008.1 1005.8 1004.1 1003.7 1007.2 1010.4 1009.9 1013.0 1007.2 998.7 DAY 23 2 24 27 5 20 6 8 12 20 9 26 1977-2005 998.7 998.7 999.5 999.1 1001.4 1000.9 1002.3 1004.7 1005.7 1005.8 1003.4 998.3 998.3 YEAR-DAY 5-23 1-21 87-14 2- 4 4-13 99-25 98- 5 2-17 97- 2 96-27 94-26 88-27 88-27 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 97 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFF PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1013.8 1007.0 1005.0 1008.8 1015.8 1020.4 1021.9 1023.8 ****** 1978 1024.3 1024.7 1018.9 1012.1 1013.0 1008.8 1008.0 1009.0 1011.8 1020.5 1025.6 1020.5 1016.4 1979 1025.5 1020.5 1019.4 1014.9 1016.4 1011.3 1007.1 1010.2 1016.3 1018.0 1025.2 1021.8 1017.2 1980 1023.8 1025.7 1019.0 1012.0 1013.0 1009.5 1006.9 1008.9 1013.6 1019.0 1020.9 1022.4 1016.2 1981 1021.8 1020.3 1015.9 1015.3 1013.3 1011.0 1007.4 1009.3 1015.7 1022.3 1020.2 1022.9 1016.3 1982 1023.9 1022.9 1019.8 1014.2 1016.1 1010.2 1006.2 1009.0 1016.1 1019.3 1024.9 1025.6 1017.4 1983 1023.5 1020.7 1020.4 1015.4 1011.2 1009.7 1004.8 1007.2 1012.8 1020.1 1022.1 1025.9 1016.2 1984 1023.8 1030.2 1018.2 1013.1 1012.6 1009.4 1005.6 1005.6 1014.8 1021.5 1021.3 1030.3 1017.2 1985 1023.3 1014.3 1023.6 1013.1 1012.0 1006.9 ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1017.8 1020.6 1021.4 ****** 1987 1020.8 1020.9 1014.0 1015.4 1011.8 1008.3 1006.9 1006.6 1013.4 1023.1 1022.0 1020.3 1015.3 1988 1022.5 1021.5 1013.2 1014.7 1012.1 1004.8 1004.3 1006.8 1012.4 1018.2 1018.3 1017.7 1013.9 1989 1023.6 1026.6 1015.7 1015.9 1013.3 1006.4 1005.7 1006.5 1010.3 1016.7 1019.9 1019.2 1015.0 1990 1023.1 1019.4 1020.7 1012.9 1010.9 1005.7 1005.6 1007.1 1009.2 1018.0 1020.4 1023.5 1014.7 1991 1022.9 1022.4 1017.9 1013.9 1010.0 1008.4 1004.2 1006.3 1013.0 1018.2 1022.7 1018.8 1014.9 1992 1021.4 1016.4 1019.3 1013.4 1014.4 1006.7 1005.7 1010.9 1013.7 1017.4 1018.8 1020.2 1014.9 1993 1023.5 1022.3 1018.5 1013.2 1011.4 1007.9 1007.0 1009.0 1011.0 1022.0 1022.2 1024.0 1016.0 1994 1021.6 1020.5 1017.4 1015.4 1010.8 1006.3 1003.9 1005.4 1016.8 1020.3 1016.4 1022.3 1014.8 1995 1022.4 1020.9 1017.3 1012.7 1012.6 1006.8 1002.7 1005.5 1010.6 1019.4 1017.8 1024.4 1014.4 1996 1024.6 1020.7 1017.0 1015.9 1012.2 1008.2 1006.2 1006.6 1007.0 1016.3 1024.3 1021.0 1015.0 1997 1018.8 1022.0 1014.6 1010.4 1011.8 1005.1 1002.2 1005.0 1011.2 1014.0 1020.7 1019.2 1012.9 1998 1019.8 1020.5 1014.9 1011.6 1013.1 1009.3 1004.9 1008.0 1011.1 1018.3 1020.2 1023.6 1014.6 1999 1022.6 1016.7 1017.0 1015.3 1012.6 1006.7 1005.3 1006.1 1010.6 1016.0 1020.7 1024.4 1014.5 2000 1019.9 1021.6 1017.1 1011.1 1008.4 1007.4 1006.6 1007.0 1009.0 1018.0 1023.0 1020.4 1014.1 2001 1024.0 1018.6 1015.2 1011.2 1007.3 1006.7 1004.4 1006.2 1010.0 1015.8 1017.2 1020.1 1013.1 2002 1020.5 1019.7 1014.9 1010.9 1010.6 1006.0 1005.9 1003.8 1009.9 1013.6 1020.3 1022.0 1013.2 2003 1020.3 1015.7 1016.5 1014.4 1013.1 1006.9 1002.4 1006.7 1010.4 1012.7 1020.1 1022.5 1013.5 2004 1015.8 1016.5 1018.7 1013.3 1007.4 1006.0 1005.4 1004.4 1011.8 1017.9 1016.2 1021.1 1012.9 2005 1019.1 1018.9 1013.0 1014.6 1010.0 1005.8 1002.8 1005.5 1008.3 1015.7 1020.6 1021.4 1013.0 MEAN 1022.1 1020.8 1017.3 1013.6 1012.0 1007.6 1005.3 1007.1 1012.1 1018.2 1020.9 1022.2 1014.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 98 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFF PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1018.9 1012.0 1009.9 1015.1 1024.5 1035.5 1030.1 1035.6 ****** DAY ** ** ** ** 29 3 22 23 30 23 27 13 1978 1038.5 1040.2 1028.4 1023.9 1023.6 1022.8 1015.5 1015.3 1019.8 1029.3 1036.4 1039.7 1040.2 DAY 13 6 19 13 2 8 3 21 27 10 27 24 1979 1038.9 1029.8 1033.3 1032.1 1024.7 1021.4 1013.7 1018.3 1023.2 1027.6 1034.6 1034.5 1038.9 DAY 26 18 5 27 25 10 20 29 23 9 19 22 1980 1031.1 1036.4 1027.5 1022.8 1024.8 1019.5 1014.5 1022.7 1021.2 1024.6 1029.6 1032.9 1036.4 DAY 9 2 15 1 16 11 18 30 26 23 4 20 1981 1032.4 1028.7 1029.6 1025.9 1026.5 1019.3 1013.9 1013.6 1025.5 1031.3 1028.7 1031.6 1032.4 DAY 9 28 8 3 21 9 23 3 23 29 16 1 1982 1036.4 1035.0 1030.5 1030.0 1028.7 1017.3 1015.0 1015.5 1023.3 1035.0 1033.9 1038.4 1038.4 DAY 21 11 5 4 9 7 8 14 20 25 18 10 1983 1040.7 1032.2 1028.3 1023.9 1018.2 1020.5 1014.0 1014.3 1020.8 1026.8 1039.4 1034.0 1040.7 DAY 8 23 19 29 31 1 1 17 28 25 26 18 1984 1033.1 1040.2 1027.7 1025.7 1019.5 1015.7 1010.9 1011.2 1020.2 1034.4 1033.0 1039.3 1040.2 DAY 4 19 4 4 12 12 3 30 30 21 30 18 1985 1031.4 1029.6 1040.6 1031.5 1022.6 1012.9 ****** ****** ****** ****** ****** ****** ****** DAY 14 24 5 17 12 10 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.1 1033.0 1037.8 ****** DAY ** ** ** ** ** ** ** ** ** 15 16 10 1987 1034.5 1032.5 1028.6 1026.4 1019.3 1017.8 1012.4 1013.7 1022.5 1032.8 1039.6 1038.2 1039.6 DAY 21 12 22 6 13 6 10 5 24 28 30 1 1988 1034.7 1038.2 1027.6 1029.9 1024.0 1011.6 1010.9 1015.3 1021.1 1028.1 1026.7 1027.9 1038.2 DAY 3 7 17 8 4 8 27 21 21 16 6 24 1989 1035.9 1036.2 1023.9 1023.0 1022.8 1013.4 1010.3 1015.5 1024.8 1028.9 1030.3 1025.9 1036.2 DAY 28 4 12 8 1 2 19 19 23 24 8 18 1990 1033.7 1031.6 1037.7 1025.2 1021.0 1012.2 1011.3 1012.5 1016.1 1032.6 1031.2 1037.6 1037.7 DAY 26 7 17 3 15 7 31 29 27 15 14 29 1991 1031.9 1035.0 1029.7 1023.7 1020.1 1015.3 1014.0 1012.2 1023.7 1024.1 1030.2 1029.6 1035.0 DAY 13 15 12 14 25 17 11 27 27 13 27 17 1992 1036.5 1029.3 1032.4 1018.6 1026.4 1014.9 1014.0 1021.3 1022.3 1024.3 1031.3 1027.1 1036.5 DAY 10 16 12 19 2 12 12 31 30 16 4 1 1993 1035.6 1033.0 1031.3 1021.9 1024.9 1022.6 1013.3 1013.8 1020.0 1028.9 1033.2 1031.6 1035.6 DAY 6 9 16 24 9 22 27 24 23 8 30 6 1994 1033.2 1035.5 1027.0 1034.4 1021.5 1012.3 1008.6 1010.0 1023.9 1027.2 1024.1 1033.1 1035.5 DAY 9 18 1 5 18 8 1 6 23 24 2 7 1995 1034.4 1029.9 1030.5 1024.0 1022.1 1014.3 1009.5 1012.2 1020.7 1033.1 1030.3 1035.3 1035.3 DAY 7 12 3 7 26 1 23 24 27 18 15 10 1996 1037.8 1030.6 1024.6 1028.3 1018.3 1015.4 1015.6 1017.6 1016.4 1029.6 1036.5 1033.4 1037.8 DAY 10 4 20 5 7 11 3 29 25 2 18 7 1997 1031.1 1031.5 1033.7 1021.1 1020.9 1010.5 1009.3 1010.8 1018.7 1022.6 1034.4 1029.9 1034.4 DAY 19 8 11 13 16 4 19 25 15 9 8 28 1998 1029.1 1036.4 1028.1 1022.7 1023.3 1015.2 1014.1 1012.1 1019.8 1032.7 1028.1 1033.4 1036.4 DAY 22 23 26 12 9 5 15 14 27 9 24 29 1999 1040.4 1026.6 1026.1 1023.8 1019.8 1015.0 1010.7 1012.7 1019.1 1026.1 1033.6 1035.2 1040.4 DAY 2 11 19 22 2 16 28 20 28 26 30 1 2000 1031.5 1033.4 1026.6 1020.8 1016.5 1018.3 1011.3 1013.8 1016.3 1023.5 1035.9 1028.1 1035.9 DAY 31 29 1 2 5 13 26 8 25 16 17 4 2001 1031.5 1034.4 1031.0 1026.7 1016.2 1013.9 1008.5 1012.7 1019.6 1028.6 1025.1 1028.8 1034.4 DAY 26 9 11 1 18 11 29 5 22 27 20 22 2002 1030.2 1031.5 1033.0 1022.6 1020.4 1013.9 1012.0 1012.4 1015.4 1019.9 1031.0 1037.3 1037.3 DAY 27 18 11 1 17 25 3 31 29 23 18 3 2003 1028.1 1024.7 1031.8 1024.5 1028.8 1017.3 1011.2 1010.3 1021.4 1020.6 1031.9 1039.0 1039.0 DAY 23 28 2 29 1 6 3 4 27 15 23 12 2004 1026.0 1022.2 1032.3 1021.9 1016.1 1017.8 1010.7 1008.9 1017.9 1025.3 1027.0 1034.6 1034.6 DAY 1 4 9 6 22 13 6 30 21 27 30 3 2005 1028.6 1029.7 1023.5 1033.4 1016.5 1013.1 1007.9 1011.6 1013.1 1025.7 1028.4 1035.1 1035.1 DAY 8 16 26 6 19 9 8 27 9 23 27 29 1977-2005 1040.7 1040.2 1040.6 1034.4 1028.8 1022.8 1015.6 1022.7 1025.5 1035.5 1039.6 1039.7 1040.7 YEAR-DAY 83- 8 78- 6 85- 5 94- 5 3- 1 78- 8 96- 3 80-30 81-23 77-23 87-30 78-24 83- 8 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 99 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFF PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1007.0 1001.4 1000.3 998.5 1008.7 1005.5 1012.4 1011.8 ****** DAY ** ** ** ** 25 19 8 17 12 5 18 6 1978 1005.5 1015.1 1002.1 997.8 1003.0 995.3 996.9 1002.6 1006.3 1013.0 1012.1 1003.2 995.3 DAY 21 18 13 25 30 21 1 14 2 29 1 16 1979 1007.9 1009.8 1003.6 1004.6 1006.4 1003.0 999.4 1002.8 1009.2 1009.2 1003.2 1008.3 999.4 DAY 6 11 27 12 6 23 6 14 6 4 29 1 1980 1011.2 1014.4 999.9 999.1 1005.5 1002.5 1003.0 1001.9 1004.2 1006.9 1011.2 1005.6 999.1 DAY 6 18 19 16 23 7 3 20 21 4 9 12 1981 1009.8 1009.8 1000.6 1000.4 1001.9 1001.2 1001.5 1004.3 1006.6 1012.6 1007.7 1013.7 1000.4 DAY 3 1 13 30 1 16 1 13 17 16 13 18 1982 1008.9 1009.1 1007.0 1003.2 1007.7 1004.7 997.7 1000.4 1011.7 1009.2 1012.1 1014.9 997.7 DAY 9 14 19 19 15 18 30 4 11 1 8 28 1983 1005.3 1007.6 1008.6 1011.0 1006.0 1001.5 993.6 1002.1 1004.2 1008.6 1011.6 1009.5 993.6 DAY 24 18 5 17 4 21 27 4 8 4 12 12 1984 1016.1 1011.3 1007.0 1002.1 1000.5 1001.2 1001.6 1000.2 1007.5 1003.2 1005.4 1013.8 1000.2 DAY 8 8 16 25 29 21 15 15 8 18 12 14 1985 1015.6 1000.5 997.6 1002.7 1005.6 1000.1 ****** ****** ****** ****** ****** ****** ****** DAY 21 6 24 24 1 20 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1010.0 1006.2 1007.6 ****** DAY ** ** ** ** ** ** ** ** ** 5 9 30 1987 1009.4 1008.3 999.9 1002.9 1003.1 1003.1 998.6 1000.7 1003.0 1010.3 1002.5 1003.5 998.6 DAY 7 9 14 19 23 19 8 15 5 4 7 24 1988 1009.4 1007.2 1001.2 1002.7 1002.1 995.6 999.8 999.5 1004.0 1009.6 1005.0 998.1 995.6 DAY 29 2 21 30 28 23 15 29 5 21 20 27 1989 1008.7 1011.1 1002.0 1007.8 1003.6 1000.9 999.9 999.3 1003.1 1003.0 1011.1 1010.9 999.3 DAY 17 23 16 14 7 10 6 1 12 2 16 13 1990 1011.8 1003.8 1010.1 1002.5 997.7 994.9 999.8 998.8 1002.7 1009.7 1007.5 1013.5 994.9 DAY 23 16 14 29 12 27 27 7 14 14 1 17 1991 1012.8 1009.5 1005.6 1002.0 999.4 999.1 995.4 1000.4 1003.9 1011.8 1012.5 1007.9 995.4 DAY 25 4 7 10 22 11 7 11 7 4 5 1 1992 1009.3 1005.9 1002.3 1007.2 1003.0 998.3 1000.4 1004.3 1006.2 1010.7 1006.6 1013.0 998.3 DAY 1 24 31 22 10 27 24 1 25 24 25 14 1993 1007.9 1012.1 1005.7 1004.9 1004.8 1001.8 1001.4 1001.2 1002.6 1006.4 1006.5 1016.5 1001.2 DAY 9 21 8 8 23 16 1 12 3 1 10 5 1994 1009.7 1001.5 1006.0 1005.1 1000.9 998.7 996.2 999.2 1009.8 1011.6 1005.5 1002.6 996.2 DAY 5 1 7 26 1 16 20 2 1 14 26 4 1995 1007.8 1007.0 1002.3 1006.5 1004.1 996.9 994.6 1000.2 1001.3 1008.2 1004.7 1015.9 994.6 DAY 17 5 26 19 7 30 16 22 19 4 11 22 1996 1011.5 1008.9 1005.9 1001.5 1005.1 1001.7 1001.3 999.5 998.9 1000.7 1017.5 1008.1 998.9 DAY 6 10 26 13 29 5 7 8 8 27 6 25 1997 1005.1 1011.4 999.0 999.9 1001.7 1001.0 997.8 997.5 997.0 1007.1 1008.3 1004.7 997.0 DAY 16 23 25 5 4 25 11 14 2 6 5 10 1998 1003.1 1003.5 995.7 999.7 1000.5 1004.3 993.4 1002.6 1003.8 1005.5 1010.4 1011.7 993.4 DAY 13 8 30 21 22 27 5 23 2 1 1 21 1999 1010.0 1002.5 1006.9 1005.3 1004.5 993.8 1000.7 1000.4 1001.9 1010.3 1009.0 1012.4 993.8 DAY 9 20 21 14 14 25 22 6 16 18 25 15 2000 1003.9 1010.1 1007.5 1003.6 1001.4 1001.3 1000.0 999.2 998.7 1009.9 1015.5 1010.8 998.7 DAY 21 7 25 10 26 26 8 31 1 12 6 21 2001 1016.5 995.9 999.8 1003.1 998.9 1001.6 997.0 996.8 1001.5 1008.0 1002.8 1007.9 995.9 DAY 4 21 24 26 8 16 10 31 8 6 18 20 2002 1004.4 1006.4 1000.5 997.7 1002.4 996.7 997.6 995.0 1004.7 1007.6 1006.5 1005.4 995.0 DAY 8 26 28 4 29 20 24 17 11 22 12 21 2003 1010.3 1002.0 1000.0 1005.3 1004.3 998.6 995.8 1003.2 1002.2 1001.4 1009.9 1010.1 995.8 DAY 5 19 26 21 23 18 8 14 10 27 2 19 2004 1003.3 998.2 1007.1 1002.8 994.1 999.8 1000.0 995.4 1004.2 1007.2 1002.2 1011.6 994.1 DAY 14 15 30 17 13 17 23 12 10 22 23 12 2005 999.4 1007.3 1003.9 1002.3 1000.4 995.0 993.2 997.8 1003.3 1004.0 1012.6 1006.1 993.2 DAY 23 1 9 27 5 20 6 8 5 20 6 26 1977-2005 999.4 995.9 995.7 997.7 994.1 993.8 993.2 995.0 997.0 1000.7 1002.2 998.1 993.2 YEAR-DAY 5-23 1-21 98-30 2- 4 4-13 99-25 5- 6 2-17 97- 2 96-27 4-23 88-27 5- 6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 100 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF COMPUTED QFF PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1015.8 1022.8 1020.9 1023.7 ****** 1982 1023.8 ****** ****** ****** 1017.8 ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.8 1021.4 ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** 1021.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** 1012.1 ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1011.4 1016.8 1021.3 1017.7 ****** 1992 1020.3 1015.5 1018.3 1012.2 1013.1 1005.3 1004.3 1009.4 1012.3 1016.1 1017.6 1019.1 1013.6 1993 1022.5 1021.2 1017.4 1011.9 1010.1 1006.6 1005.6 1007.6 1009.6 1020.6 1021.0 1022.8 1014.7 1994 1020.4 1019.4 1016.2 1014.2 1009.6 1005.0 1002.6 1004.1 1015.6 1018.9 1015.0 1021.3 1013.5 1995 1021.3 1019.8 1016.3 1011.5 1011.4 1005.6 1001.5 1004.3 1009.4 1018.1 1016.8 1023.3 1013.3 1996 1023.5 1019.5 1015.9 1014.6 1011.1 1007.0 1005.6 1006.4 1006.7 1015.9 1024.2 1020.8 1014.3 1997 1018.8 1022.0 1014.5 1010.2 1011.7 1004.9 1002.0 1004.8 1011.0 1013.8 1020.6 1019.1 1012.8 1998 1019.6 1020.4 1014.7 1011.5 1011.5 1008.1 1003.7 1006.6 1009.8 1017.0 1018.8 1022.3 1013.7 1999 1021.4 1015.6 1015.8 1014.0 1011.2 1005.3 1004.0 1004.8 1009.2 1014.7 1019.5 1023.1 1013.2 2000 1018.9 1020.4 1016.1 1010.0 1007.2 1006.4 1005.2 1006.0 1008.8 1017.9 1023.1 1020.3 1013.3 2001 1024.0 1018.5 1015.2 1011.1 1006.9 1005.0 1004.3 1006.1 1009.9 1015.7 1017.2 1020.2 1012.8 2002 1020.4 1019.7 1014.8 1010.7 1010.5 1005.9 1005.8 1003.5 1009.8 1013.5 1020.2 1022.0 1013.1 2003 1020.3 1015.7 1016.5 1014.4 1013.1 1006.8 1002.4 1006.7 1010.5 1012.7 1020.1 1022.4 1013.5 2004 1015.7 1016.5 1018.7 1013.3 1007.3 1006.0 1005.4 1004.4 1011.8 1017.8 1016.2 1021.1 1012.8 2005 1019.1 1018.9 1013.0 1014.6 1010.0 1005.8 1002.8 1005.5 1008.3 1015.7 1020.6 1021.4 1013.0 MEAN 1020.7 1018.8 1016.3 1012.4 1010.9 1006.0 1003.9 1005.7 1010.6 1017.0 1019.7 1021.3 1013.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 101 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF COMPUTED QFF PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1024.2 1031.8 1029.5 1031.9 ****** DAY ** ** ** ** ** ** ** ** 27 29 16 1 1982 1036.9 ****** ****** ****** 1028.5 ****** ****** ****** ****** ****** ****** ****** ****** DAY 22 ** ** ** 10 ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1027.6 1036.7 ****** ****** DAY ** ** ** ** ** ** ** ** ** 25 5 ** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1986 ****** ****** 1028.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 3 ** ** ** ** ** ** ** ** ** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1988 ****** ****** ****** ****** 1022.3 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 4 ** ** ** ** ** ** ** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1022.1 1022.7 1028.8 1029.4 ****** DAY ** ** ** ** ** ** ** ** 27 13 27 17 1992 1035.3 1028.2 1031.2 1017.4 1025.0 1013.3 1012.4 1019.8 1020.7 1022.8 1029.6 1025.6 1035.3 DAY 10 16 12 19 2 12 12 31 30 16 4 1 1993 1035.6 1031.6 1030.1 1020.7 1023.4 1020.9 1011.5 1012.6 1018.4 1027.6 1032.1 1030.3 1035.6 DAY 6 9 16 24 9 22 27 24 23 8 30 6 1994 1031.9 1034.3 1025.6 1033.1 1020.0 1011.1 1007.2 1008.3 1022.4 1025.5 1022.3 1032.0 1034.3 DAY 10 18 1 5 18 8 13 6 23 24 2 7 1995 1032.9 1028.5 1029.2 1022.7 1020.9 1013.3 1008.1 1010.5 1019.1 1031.8 1028.9 1034.1 1034.1 DAY 7 12 3 7 26 1 23 24 27 18 15 10 1996 1037.1 1029.5 1023.6 1027.1 1017.0 1014.1 1013.8 1017.4 1016.1 1026.6 1036.6 1033.5 1037.1 DAY 10 4 20 5 7 11 3 29 25 2 18 7 1997 1031.2 1031.6 1033.9 1021.1 1020.6 1010.2 1009.2 1010.5 1018.7 1022.5 1034.3 1029.7 1034.3 DAY 19 8 11 13 16 4 19 25 15 9 8 28 1998 1028.9 1036.1 1027.9 1022.5 1021.5 1013.6 1013.1 1010.2 1017.9 1031.3 1026.5 1032.1 1036.1 DAY 22 23 26 12 3 5 15 25 12 9 24 29 1999 1040.8 1025.2 1025.0 1022.1 1017.5 1013.3 1009.1 1011.5 1017.7 1024.6 1032.3 1033.9 1040.8 DAY 2 11 19 22 9 16 26 19 28 26 30 1 2000 1030.4 1032.0 1025.4 1019.6 1015.0 1016.9 1010.2 1011.9 1016.2 1023.3 1035.9 1028.1 1035.9 DAY 31 29 16 2 5 13 26 8 25 16 17 4 2001 1031.6 1034.5 1031.0 1026.6 1016.1 1013.9 1008.4 1012.0 1019.4 1028.6 1025.2 1028.9 1034.5 DAY 26 9 11 1 18 11 29 11 22 27 20 22 2002 1030.2 1031.5 1033.0 1022.6 1020.2 1013.7 1011.8 1012.3 1015.4 1019.9 1030.7 1037.3 1037.3 DAY 27 18 11 1 17 25 1 31 30 23 18 3 2003 1028.2 1024.7 1031.8 1024.5 1028.8 1017.7 1011.2 1010.3 1021.3 1020.6 1032.0 1038.9 1038.9 DAY 23 28 2 29 1 6 3 4 27 15 23 12 2004 1026.0 1022.1 1032.3 1021.8 1016.0 1017.8 1010.7 1008.9 1017.8 1025.3 1026.9 1034.7 1034.7 DAY 1 4 9 6 22 13 6 30 21 27 30 3 2005 1028.6 1029.7 1023.5 1033.3 1016.5 1013.1 1008.0 1011.6 1013.1 1025.7 1028.4 1035.1 1035.1 DAY 8 16 26 6 19 9 8 27 9 23 27 29 1977-2005 1040.8 1036.1 1033.9 1033.3 1028.8 1020.9 1013.8 1019.8 1024.2 1031.8 1036.7 1038.9 1040.8 YEAR-DAY 99- 2 98-23 97-11 5- 6 3- 1 93-22 96- 3 92-31 81-27 95-18 83- 5 3-12 99- 2 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 102 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF COMPUTED QFF PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1008.3 1013.8 1008.6 1014.7 ****** DAY ** ** ** ** ** ** ** ** 17 16 13 18 1982 1009.9 ****** ****** ****** 1009.2 ****** ****** ****** ****** ****** ****** ****** ****** DAY 9 ** ** ** 20 ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1008.6 1012.5 ****** ****** DAY ** ** ** ** ** ** ** ** ** 4 12 ** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1986 ****** ****** 1014.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 8 ** ** ** ** ** ** ** ** ** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1988 ****** ****** ****** ****** 1003.9 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 13 ** ** ** ** ** ** ** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1002.7 1010.7 1011.2 1007.1 ****** DAY ** ** ** ** ** ** ** ** 21 4 5 1 1992 1008.6 1005.0 1001.1 1005.9 1001.9 997.2 999.2 1002.7 1005.1 1009.6 1005.7 1011.9 997.2 DAY 1 24 31 22 10 27 24 1 25 24 25 14 1993 1007.0 1011.0 1004.8 1003.9 1003.4 1000.7 1000.3 1000.3 1001.5 1005.5 1005.5 1015.3 1000.3 DAY 9 21 8 20 23 16 1 12 3 1 10 5 1994 1008.5 1000.7 1005.2 1003.8 999.8 997.5 995.4 997.9 1008.2 1010.8 1003.5 1001.6 995.4 DAY 5 1 7 26 1 16 20 2 1 14 26 4 1995 1006.9 1006.1 1001.4 1005.4 1002.9 995.9 993.2 998.8 1000.3 1007.3 1004.1 1015.1 993.2 DAY 17 5 26 19 7 30 16 3 19 4 11 22 1996 1010.5 1007.8 1004.9 1000.7 1004.7 1000.3 1000.1 999.3 998.8 1000.7 1017.3 1008.5 998.8 DAY 6 10 26 13 30 5 7 8 8 27 6 25 1997 1005.1 1011.3 998.7 999.9 1001.8 1000.2 997.5 997.3 997.0 1007.1 1008.3 1004.9 997.0 DAY 16 23 25 5 4 23 16 14 2 6 5 10 1998 1003.1 1003.5 995.8 999.6 999.4 1003.1 992.6 1001.9 1002.4 1004.4 1009.3 1010.8 992.6 DAY 13 8 30 21 22 27 5 23 5 1 1 21 1999 1008.9 1001.6 1007.0 1003.3 1003.1 992.9 999.8 999.4 1000.7 1009.2 1008.0 1011.4 992.9 DAY 9 20 21 14 14 25 22 6 16 18 25 15 2000 1003.2 1009.2 1007.1 1002.5 1000.5 1000.1 998.8 998.8 998.4 1012.0 1015.5 1010.7 998.4 DAY 21 7 24 10 26 26 8 31 1 12 6 21 2001 1016.4 995.9 999.8 1003.2 998.5 994.4 996.9 996.8 1001.3 1007.8 1002.8 1007.7 994.4 DAY 4 21 24 26 9 6 10 31 8 6 18 20 2002 1004.4 1006.3 1000.4 997.7 1002.5 996.5 997.1 994.8 1004.7 1008.7 1006.6 1005.4 994.8 DAY 8 26 28 4 29 20 24 17 11 22 12 21 2003 1010.2 1001.9 999.9 1005.4 1004.3 998.6 995.7 1003.2 1002.2 1001.4 1009.9 1009.1 995.7 DAY 5 19 26 21 23 18 8 14 10 27 2 19 2004 1003.4 998.2 1007.1 1002.8 994.1 999.8 999.9 995.4 1004.1 1007.2 1002.2 1011.6 994.1 DAY 14 15 30 17 13 17 23 12 10 22 23 12 2005 999.4 1007.3 1003.9 1002.4 1000.4 995.0 993.2 997.8 1003.3 1004.0 1012.6 1006.1 993.2 DAY 23 1 9 27 5 20 6 8 5 20 6 26 1977-2005 999.4 995.9 995.8 997.7 994.1 992.9 992.6 994.8 997.0 1000.7 1002.2 1001.6 992.6 YEAR-DAY 5-23 1-21 98-30 2- 4 4-13 99-25 98- 5 2-17 97- 2 96-27 4-23 94- 4 98- 5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 103 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFE PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 898.0 ****** 893.6 889.7 888.2 891.0 895.4 897.2 896.7 896.4 ****** 1978 896.2 896.5 893.4 890.3 892.2 890.0 890.9 890.8 892.9 897.8 898.6 894.7 893.7 1979 896.9 893.4 893.7 893.1 895.1 892.6 890.4 892.1 896.4 896.3 899.2 895.0 894.5 1980 895.0 895.8 893.3 891.4 893.1 891.2 890.4 891.2 893.8 896.0 896.6 896.0 893.7 1981 894.9 893.6 891.5 892.3 893.0 892.2 890.5 891.7 896.2 899.3 895.6 896.2 893.9 1982 894.2 893.6 893.7 892.8 896.3 892.1 889.5 891.3 895.8 896.7 898.4 897.1 894.3 1983 895.5 893.7 894.2 893.3 892.5 892.2 889.2 890.2 893.6 897.4 898.0 898.0 894.0 1984 895.9 899.9 893.3 891.8 892.3 891.7 889.8 889.2 895.2 898.5 897.2 900.5 894.6 1985 895.7 889.2 897.1 892.0 893.0 890.1 887.4 890.0 890.6 893.7 894.9 892.8 892.2 1986 892.0 890.5 892.8 891.5 889.6 886.3 888.6 890.1 892.8 894.5 893.8 892.4 891.2 1987 893.0 892.2 887.6 890.5 890.4 889.0 888.1 888.3 891.8 896.8 895.6 892.6 891.3 1988 892.3 891.8 887.2 890.6 890.1 886.3 886.1 887.6 891.2 894.3 892.8 890.6 890.1 1989 892.2 894.8 889.0 891.9 891.1 887.6 888.0 888.1 889.7 893.6 893.4 891.7 890.9 1990 893.1 890.2 893.2 888.7 889.4 886.8 887.2 888.1 889.4 893.9 894.4 893.9 890.7 1991 892.6 892.7 890.7 890.2 888.0 888.4 886.1 887.5 891.5 894.4 895.3 890.6 890.7 1992 891.4 888.0 890.7 889.0 890.9 887.0 887.1 890.4 891.9 893.1 893.2 892.2 890.4 1993 892.7 892.6 891.0 889.1 889.7 888.2 888.1 889.5 890.4 896.8 894.5 894.8 891.4 1994 892.0 890.5 890.5 891.1 889.7 886.5 885.3 886.8 894.2 895.6 891.3 893.0 890.5 1995 893.3 891.7 890.6 889.1 890.9 887.4 884.9 887.1 889.5 894.3 892.0 894.4 890.4 1996 894.1 891.1 889.3 890.9 890.7 888.3 888.4 888.7 888.1 893.1 897.3 893.8 891.1 1997 890.9 892.3 888.1 887.7 891.1 887.2 885.3 887.5 891.2 892.3 894.8 892.0 890.0 1998 890.6 891.4 889.2 889.4 890.8 890.1 886.8 889.3 890.4 894.2 894.5 895.7 891.0 1999 893.2 889.5 889.9 890.7 890.1 887.5 886.5 887.9 889.8 892.7 893.4 895.9 890.6 2000 890.8 891.8 890.0 889.0 887.9 887.8 888.1 888.4 889.9 894.7 896.2 892.9 890.6 2001 894.8 891.0 890.3 889.3 887.5 887.0 887.0 888.7 890.5 893.2 892.6 893.8 890.5 2002 892.6 892.2 889.9 887.9 889.4 887.1 888.4 886.8 891.1 892.7 894.9 893.0 890.5 2003 892.4 888.7 890.0 891.0 891.5 888.0 885.7 889.0 890.6 891.7 894.5 894.7 890.6 2004 889.0 890.1 893.2 889.6 887.5 887.8 887.9 887.2 892.2 895.1 892.0 892.7 890.4 2005 891.1 890.7 888.4 891.9 889.9 887.7 886.8 888.0 889.7 894.1 895.0 895.0 890.7 MEAN 893.2 892.1 891.4 890.6 890.9 888.8 887.8 889.0 891.9 895.0 895.1 894.2 891.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 104 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFE PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 910.0 ****** 898.0 893.5 891.5 895.7 903.6 906.5 903.2 906.0 ****** DAY ** ** 9 ** 29 5 21 23 30 23 26 13 1978 906.3 907.5 901.4 897.3 900.3 900.9 896.4 895.5 899.5 905.7 906.3 906.7 907.5 DAY 13 5 19 13 2 8 7 21 26 10 5 24 1979 909.1 901.0 902.3 905.2 901.7 901.0 895.4 898.0 901.2 904.7 906.4 903.7 909.1 DAY 18 27 2 27 27 10 20 29 23 9 10 4 1980 901.8 902.9 899.9 900.3 901.8 897.9 899.7 900.7 899.4 900.5 904.9 903.6 904.9 DAY 9 2 27 1 16 1 10 30 26 9 3 20 1981 903.7 899.4 901.9 899.9 903.3 898.8 895.7 896.0 902.5 905.6 902.3 904.7 905.6 DAY 29 28 8 19 21 10 23 3 27 29 15 1 1982 901.8 904.4 901.1 899.2 905.5 897.6 895.0 896.0 900.6 907.0 904.4 904.3 907.0 DAY 20 11 5 3 10 7 8 15 21 25 18 9 1983 907.8 901.7 900.7 900.3 898.3 898.7 895.6 896.4 898.3 903.2 908.2 905.6 908.2 DAY 8 10 14 29 15 1 1 17 28 28 26 4 1984 905.0 908.5 901.0 899.0 898.4 897.2 894.7 893.6 899.8 907.1 906.2 908.8 908.8 DAY 4 18 4 4 17 15 3 30 30 21 30 18 1985 904.0 898.3 909.0 904.1 901.7 894.6 891.6 894.2 898.6 902.0 901.3 901.8 909.0 DAY 14 24 5 17 12 9 16 30 22 31 17 14 1986 901.1 896.4 898.5 897.3 897.8 893.5 891.7 893.6 896.3 900.6 902.4 902.5 902.5 DAY 28 22 27 5 18 2 3 17 17 14 15 6 1987 903.5 900.0 898.2 897.6 896.1 893.0 893.0 895.2 896.2 903.1 906.9 904.6 906.9 DAY 20 1 22 30 13 6 10 5 25 16 30 1 1988 900.6 902.0 897.5 901.1 897.8 891.2 889.6 893.9 898.2 901.7 901.3 897.8 902.0 DAY 3 7 17 8 4 8 31 21 21 16 5 5 1989 901.3 902.1 894.8 896.2 895.9 891.6 893.1 893.9 898.9 900.9 899.8 896.6 902.1 DAY 21 8 8 20 20 6 19 19 23 24 8 18 1990 900.9 898.8 903.2 895.5 896.9 891.1 891.6 891.7 894.4 904.9 902.9 901.5 904.9 DAY 26 7 17 3 15 6 31 2 27 15 22 28 1991 900.0 901.2 897.5 896.5 894.7 894.4 892.6 891.1 897.2 898.8 900.0 898.6 901.2 DAY 11 15 12 28 25 17 11 27 15 13 27 17 1992 901.3 896.0 899.7 893.4 898.0 891.8 892.1 896.5 897.2 899.7 902.9 898.0 902.9 DAY 9 16 12 30 2 6 12 31 29 29 3 2 1993 904.3 901.7 899.6 895.0 898.5 898.7 893.3 892.8 897.2 901.8 902.3 900.9 904.3 DAY 6 9 16 1 9 22 27 24 22 20 21 6 1994 902.8 901.7 896.2 902.6 896.6 891.0 889.4 891.0 899.9 900.6 898.3 900.2 902.8 DAY 9 18 31 5 18 8 13 15 23 24 2 22 1995 903.5 899.2 900.0 894.9 897.2 892.4 889.0 892.1 896.1 904.9 901.4 902.8 904.9 DAY 7 12 3 7 26 1 23 24 27 17 15 10 1996 903.4 897.2 894.0 898.7 895.5 893.6 895.5 897.1 894.1 902.2 907.2 901.1 907.2 DAY 10 13 28 4 26 11 3 29 24 2 18 7 1997 899.5 897.8 901.8 894.5 896.8 890.8 891.6 891.5 896.6 898.8 905.9 900.0 905.9 DAY 19 7 11 13 16 8 19 24 7 8 7 28 1998 898.9 903.3 899.8 898.9 897.5 895.1 893.2 892.0 896.6 904.4 901.4 904.1 904.4 DAY 22 22 26 12 8 5 15 25 27 9 20 29 1999 906.2 898.1 896.7 897.3 894.4 894.2 890.2 893.5 895.1 898.6 902.7 904.3 906.2 DAY 2 11 1 22 23 16 18 20 28 26 30 24 2000 897.7 901.8 896.2 895.0 893.2 893.1 893.4 892.6 895.3 898.0 905.4 901.0 905.4 DAY 14 29 27 2 5 13 30 8 25 5 17 4 2001 900.2 904.1 900.4 899.9 894.0 892.7 890.8 893.9 896.1 901.5 898.8 900.0 904.1 DAY 26 9 1 1 18 1 28 5 21 10 2 9 2002 900.5 900.4 903.2 896.0 895.8 893.6 892.5 892.2 895.7 897.5 902.3 904.9 904.9 DAY 27 18 10 1 17 24 3 31 29 10 18 3 2003 897.8 897.5 899.7 897.5 901.4 895.7 892.9 892.0 898.9 897.9 902.9 904.9 904.9 DAY 10 12 2 30 1 6 3 30 26 15 25 11 2004 895.9 893.9 903.9 895.8 894.5 895.4 892.8 891.4 896.4 901.1 898.4 903.4 903.9 DAY 12 25 8 28 21 13 7 17 21 14 30 3 2005 899.1 898.7 894.6 902.6 895.1 892.6 889.9 892.1 893.6 901.4 900.0 903.9 903.9 DAY 8 16 26 6 18 9 8 29 9 23 15 30 1977-2005 909.1 908.5 910.0 905.2 905.5 901.0 899.7 900.7 903.6 907.1 908.2 908.8 910.0 YEAR-DAY 79-18 84-18 77- 9 79-27 82-10 79-10 80-10 80-30 77-30 84-21 83-26 84-18 77- 9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 105 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFE PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 889.8 ****** 887.1 884.6 884.1 883.9 890.8 887.4 888.4 886.9 ****** DAY ** ** 4 ** 25 22 27 17 11 5 18 22 1978 884.6 888.7 880.6 881.4 884.5 877.9 881.5 886.7 888.4 891.2 890.2 883.1 877.9 DAY 21 17 13 25 30 21 1 14 1 29 8 16 1979 885.4 884.3 883.2 886.0 888.2 886.1 883.8 886.3 890.6 888.1 883.6 883.3 883.2 DAY 6 11 27 12 16 23 6 14 5 4 29 1 1980 886.2 885.7 880.0 884.7 888.6 886.0 887.1 885.8 886.3 889.1 890.6 885.8 880.0 DAY 6 18 2 26 23 16 2 19 21 4 9 12 1981 884.4 885.2 880.2 881.3 883.1 885.3 885.6 887.3 890.5 892.7 888.0 888.6 880.2 DAY 3 1 13 30 1 16 1 13 12 16 5 18 1982 887.2 885.4 884.9 884.3 888.9 888.2 881.9 885.4 891.7 889.5 889.6 889.2 881.9 DAY 9 14 2 18 15 18 30 1 13 20 6 28 1983 880.8 885.1 886.2 888.7 887.2 886.4 881.6 885.1 887.5 888.1 890.9 888.1 880.8 DAY 24 18 5 23 3 21 27 28 8 4 12 12 1984 889.7 884.8 884.3 886.8 884.9 885.1 887.0 884.6 889.4 886.7 884.7 889.3 884.3 DAY 14 8 15 9 29 20 15 15 8 18 12 14 1985 888.2 880.3 884.1 885.2 887.5 885.0 882.8 885.5 885.3 887.3 890.8 878.9 878.9 DAY 2 26 24 24 4 19 19 8 7 10 7 19 1986 881.7 885.1 887.4 885.3 882.9 881.4 884.7 885.6 889.4 889.8 885.3 881.7 881.4 DAY 20 6 9 11 3 17 20 15 6 1 7 30 1987 884.7 882.9 877.1 880.9 884.8 886.2 882.2 883.6 885.9 888.2 884.4 884.4 877.1 DAY 2 10 14 19 22 2 8 18 5 4 7 24 1988 884.1 884.0 878.8 883.1 883.2 879.9 883.0 882.1 886.0 885.2 884.5 873.1 873.1 DAY 29 1 9 30 28 23 15 29 5 30 28 27 1989 882.2 885.1 878.9 887.0 885.4 882.4 883.5 881.3 884.2 884.9 887.8 885.6 878.9 DAY 17 1 28 14 31 10 6 1 12 2 15 8 1990 884.8 880.3 886.5 880.0 879.9 879.9 883.5 882.6 884.8 888.2 887.8 885.6 879.9 DAY 23 16 24 15 12 27 27 7 5 31 1 25 1991 884.4 884.4 880.3 881.4 879.8 880.5 879.5 883.2 884.7 889.9 889.3 882.5 879.5 DAY 3 4 7 4 22 11 7 11 7 4 4 1 1992 883.9 881.9 879.9 884.6 883.9 881.4 883.6 885.3 886.1 887.7 884.6 886.3 879.9 DAY 30 5 31 18 10 27 10 1 17 24 25 27 1993 880.0 885.4 882.2 883.0 886.1 884.5 884.6 883.4 884.5 887.2 883.9 888.1 880.0 DAY 8 21 21 8 3 16 12 12 3 1 10 5 1994 880.6 876.2 882.3 882.7 881.6 882.3 880.9 882.0 889.5 888.5 883.0 880.1 876.2 DAY 16 1 7 2 1 16 20 2 2 14 26 4 1995 886.3 881.6 881.1 885.0 885.1 880.9 880.6 882.3 882.1 887.6 884.2 888.3 880.6 DAY 11 5 26 19 7 30 11 22 19 11 11 25 1996 886.8 879.3 883.5 882.0 885.4 883.8 884.1 882.4 882.5 882.7 891.4 886.5 879.3 DAY 6 5 2 13 29 5 7 8 8 27 28 25 1997 882.3 884.3 879.8 880.0 881.0 882.7 881.4 882.0 882.9 888.2 888.7 883.3 879.8 DAY 16 22 17 5 4 30 11 14 2 6 5 10 1998 876.9 879.5 881.0 881.8 883.1 886.2 877.8 885.9 884.9 885.2 888.1 888.6 876.9 DAY 13 14 18 21 21 24 5 22 5 1 1 21 1999 885.1 879.1 882.9 882.8 883.2 877.5 883.3 884.6 883.6 888.5 885.9 887.0 877.5 DAY 9 20 21 14 20 25 12 6 15 24 26 14 2000 880.1 884.1 883.4 884.2 883.2 883.1 883.6 881.9 882.7 890.8 891.1 886.0 880.1 DAY 21 7 24 21 26 26 8 3 1 11 6 15 2001 890.3 873.6 880.0 881.8 879.9 879.3 882.2 881.7 885.6 887.4 882.3 885.6 873.6 DAY 18 21 25 12 9 6 10 31 8 6 17 5 2002 882.3 882.9 880.4 877.4 884.4 879.4 881.3 880.9 886.7 887.6 885.4 881.1 877.4 DAY 8 25 28 4 29 20 24 17 10 21 12 21 2003 881.4 877.7 879.7 885.0 885.6 882.7 881.1 886.6 884.6 885.0 886.9 885.9 877.7 DAY 28 19 26 5 29 30 8 6 18 27 20 6 2004 880.1 877.8 885.1 879.5 879.4 882.4 884.0 879.7 886.3 888.7 879.9 885.8 877.8 DAY 23 15 30 17 16 17 23 12 10 3 23 12 2005 876.6 883.0 880.8 883.5 881.0 878.9 879.5 882.4 885.4 885.2 889.8 884.6 876.6 DAY 23 1 24 27 4 20 6 8 12 20 30 26 1977-2005 876.6 873.6 877.1 877.4 879.4 877.5 877.8 879.7 882.1 882.7 879.9 873.1 873.1 YEAR-DAY 5-23 1-21 87-14 2- 4 4-16 99-25 98- 5 4-12 95-19 96-27 4-23 88-27 88-27 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 106 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QNH PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1023.1 ****** 1018.2 1013.9 1012.2 1015.4 1020.2 1022.2 1021.7 1021.4 ****** 1978 1021.2 1021.5 1018.0 1014.6 1016.7 1014.2 1015.2 1015.1 1017.5 1022.9 1023.8 1019.4 1018.3 1979 1021.9 1018.0 1018.4 1017.6 1019.9 1017.2 1014.7 1016.5 1021.3 1021.2 1024.4 1019.8 1019.2 1980 1019.8 1020.7 1017.9 1015.8 1017.6 1015.6 1014.7 1015.6 1018.5 1020.9 1021.6 1020.9 1018.3 1981 1019.6 1018.3 1015.9 1016.8 1017.6 1016.7 1014.8 1016.1 1021.1 1024.5 1020.5 1021.1 1018.6 1982 1018.9 1018.3 1018.3 1017.3 1021.2 1016.5 1013.7 1015.7 1020.6 1021.7 1023.6 1022.1 1019.0 1983 1020.4 1018.4 1018.9 1017.8 1017.0 1016.7 1013.3 1014.4 1018.2 1022.4 1023.1 1023.1 1018.6 1984 1020.8 1025.2 1017.9 1016.2 1016.8 1016.1 1014.1 1013.3 1020.0 1023.7 1022.2 1025.9 1019.3 1985 1020.5 1013.3 1022.1 1016.4 1017.6 1014.4 1011.4 1014.2 1014.9 1018.4 1019.7 1017.3 1016.7 1986 1016.5 1014.8 1017.3 1015.9 1013.7 1010.2 1012.7 1014.3 1017.4 1019.2 1018.4 1016.9 1015.6 1987 1017.6 1016.7 1011.6 1014.8 1014.7 1013.1 1012.1 1012.3 1016.3 1021.8 1020.5 1017.1 1015.7 1988 1016.8 1016.2 1011.1 1014.9 1014.3 1010.1 1009.9 1011.6 1015.6 1019.0 1017.3 1014.9 1014.3 1989 1016.7 1019.5 1013.1 1016.3 1015.4 1011.6 1012.0 1012.1 1013.9 1018.2 1018.1 1016.1 1015.2 1990 1017.6 1014.5 1017.7 1012.8 1013.5 1010.7 1011.1 1012.1 1013.5 1018.5 1019.1 1018.5 1015.0 1991 1017.1 1017.2 1015.0 1014.5 1012.0 1012.5 1009.9 1011.4 1015.9 1019.1 1020.1 1014.8 1015.0 1992 1015.8 1012.0 1015.0 1013.1 1015.2 1010.9 1011.0 1014.6 1016.3 1017.7 1017.8 1016.6 1014.7 1993 1017.2 1017.1 1015.4 1013.2 1013.9 1012.2 1012.2 1013.7 1014.6 1021.7 1019.2 1019.5 1015.8 1994 1016.5 1014.8 1014.8 1015.4 1013.9 1010.3 1009.0 1010.7 1018.9 1020.5 1015.6 1017.6 1014.8 1995 1017.9 1016.1 1014.9 1013.2 1015.3 1011.3 1008.5 1011.0 1013.7 1019.1 1016.5 1019.1 1014.7 1996 1018.8 1015.4 1013.5 1015.2 1015.0 1012.3 1012.5 1012.7 1012.1 1017.7 1022.3 1018.5 1015.5 1997 1015.2 1016.8 1012.1 1011.7 1015.4 1011.1 1009.0 1011.4 1015.6 1016.7 1019.5 1016.4 1014.2 1998 1014.9 1015.8 1013.3 1013.6 1015.1 1014.3 1010.6 1013.4 1014.7 1018.9 1019.2 1020.5 1015.4 1999 1017.8 1013.7 1014.1 1015.0 1014.4 1011.4 1010.3 1011.9 1014.0 1017.2 1018.1 1020.7 1014.9 2000 1015.2 1016.2 1014.2 1013.2 1011.9 1011.7 1012.1 1012.5 1014.2 1019.4 1021.2 1017.5 1014.9 2001 1019.6 1015.3 1014.5 1013.5 1011.4 1010.8 1010.9 1012.8 1014.8 1017.8 1017.2 1018.5 1014.8 2002 1017.1 1016.6 1014.1 1011.8 1013.5 1011.0 1012.4 1010.7 1015.4 1017.3 1019.7 1017.6 1014.8 2003 1016.9 1012.8 1014.3 1015.3 1015.9 1012.0 1009.4 1013.1 1014.9 1016.1 1019.3 1019.4 1014.9 2004 1013.1 1014.4 1017.7 1013.8 1011.4 1011.7 1011.9 1011.1 1016.7 1019.9 1016.5 1017.2 1014.6 2005 1015.4 1015.0 1012.5 1016.3 1014.1 1011.7 1010.7 1012.0 1013.9 1018.8 1019.8 1019.8 1015.0 MEAN 1017.7 1016.6 1015.7 1014.9 1015.3 1012.8 1011.8 1013.2 1016.4 1019.7 1019.9 1018.9 1016.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 107 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QNH PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1036.5 ****** 1023.1 1018.1 1015.9 1020.6 1029.3 1032.6 1028.9 1032.0 ****** DAY ** ** 9 ** 29 5 21 23 30 23 26 13 1978 1032.3 1033.7 1026.9 1022.3 1025.7 1026.3 1021.3 1020.3 1024.8 1031.7 1032.3 1032.8 1033.7 DAY 13 5 19 13 2 8 7 21 26 10 5 24 1979 1035.5 1026.5 1027.9 1031.1 1027.2 1026.5 1020.2 1023.1 1026.7 1030.6 1032.5 1029.5 1035.5 DAY 18 27 2 27 27 10 20 29 23 9 10 4 1980 1027.3 1028.6 1025.2 1025.7 1027.3 1023.0 1025.0 1026.1 1024.7 1025.9 1030.8 1029.3 1030.8 DAY 9 2 27 1 16 1 10 30 26 9 3 20 1981 1029.5 1024.7 1027.5 1025.2 1029.0 1024.0 1020.6 1020.9 1028.1 1031.6 1027.9 1030.6 1031.6 DAY 29 28 8 19 21 10 23 3 27 29 15 1 1982 1027.3 1030.2 1026.6 1024.5 1031.5 1022.7 1019.8 1020.9 1026.0 1033.1 1030.2 1030.1 1033.1 DAY 20 11 5 3 10 7 8 15 21 25 18 9 1983 1034.0 1027.2 1026.1 1025.7 1023.5 1023.9 1020.5 1021.3 1023.5 1028.9 1034.5 1031.6 1034.5 DAY 8 10 14 29 15 1 1 17 28 28 26 4 1984 1030.9 1034.8 1026.5 1024.2 1023.6 1022.2 1019.4 1018.2 1025.1 1033.2 1032.2 1035.1 1035.1 DAY 4 18 4 4 17 15 3 30 30 21 30 18 1985 1029.8 1023.5 1035.3 1029.9 1027.2 1019.3 1016.0 1018.9 1023.8 1027.6 1026.8 1027.3 1035.3 DAY 14 24 5 17 12 9 16 30 22 31 17 14 1986 1026.6 1021.3 1023.7 1022.3 1022.9 1018.1 1016.1 1018.2 1021.2 1026.0 1028.0 1028.1 1028.1 DAY 28 22 27 5 18 2 3 17 17 14 15 6 1987 1029.2 1025.3 1023.3 1022.7 1021.0 1017.6 1017.6 1020.0 1021.1 1028.8 1033.0 1030.5 1033.0 DAY 20 1 22 30 13 6 10 5 25 16 30 1 1988 1026.0 1027.6 1022.6 1026.6 1022.9 1015.6 1013.8 1018.6 1023.3 1027.2 1026.8 1022.9 1027.6 DAY 3 7 17 8 4 8 31 21 21 16 5 5 1989 1026.8 1027.7 1019.6 1021.1 1020.8 1016.0 1017.7 1018.6 1024.1 1026.3 1025.1 1021.6 1027.7 DAY 21 8 8 20 20 6 19 19 23 24 8 18 1990 1026.3 1024.0 1028.9 1020.3 1021.9 1015.4 1016.0 1016.1 1019.1 1030.8 1028.6 1027.0 1030.8 DAY 26 7 17 3 15 6 31 2 27 15 22 28 1991 1025.3 1026.7 1022.6 1021.5 1019.4 1019.1 1017.1 1015.4 1022.2 1024.0 1025.3 1023.8 1026.7 DAY 11 15 12 28 25 17 11 27 15 13 27 17 1992 1026.8 1020.9 1025.0 1018.0 1023.1 1016.2 1016.6 1021.5 1022.2 1025.0 1028.6 1023.1 1028.6 DAY 9 16 12 30 2 6 12 31 29 29 3 2 1993 1030.1 1027.2 1024.9 1019.8 1023.7 1023.9 1017.9 1017.3 1022.2 1027.3 1027.9 1026.3 1030.1 DAY 6 9 16 1 9 22 27 24 22 20 21 6 1994 1028.5 1027.2 1021.1 1028.2 1021.6 1015.3 1013.6 1015.3 1025.2 1026.0 1023.5 1025.6 1028.5 DAY 9 18 31 5 18 8 13 15 23 24 2 22 1995 1029.2 1024.5 1025.3 1019.7 1022.2 1016.9 1013.1 1016.6 1021.0 1030.8 1026.9 1028.5 1030.8 DAY 7 12 3 7 26 1 23 24 27 17 15 10 1996 1029.1 1022.2 1018.7 1023.9 1020.3 1018.2 1020.3 1022.1 1018.8 1027.8 1033.3 1026.6 1033.3 DAY 10 13 28 4 26 11 3 29 24 2 18 7 1997 1024.8 1022.9 1027.3 1019.2 1021.8 1015.1 1016.0 1015.9 1021.6 1024.0 1031.9 1025.3 1031.9 DAY 19 7 11 13 16 8 19 24 7 8 7 28 1998 1024.1 1029.0 1025.1 1024.1 1022.6 1019.9 1017.8 1016.4 1021.6 1030.2 1026.9 1029.9 1030.2 DAY 22 22 26 12 8 5 15 25 27 9 20 29 1999 1032.2 1023.2 1021.7 1022.3 1019.1 1018.9 1014.4 1018.1 1019.9 1023.8 1028.3 1030.1 1032.2 DAY 2 11 1 22 23 16 18 20 28 26 30 24 2000 1022.8 1027.3 1021.1 1019.8 1017.8 1017.7 1018.0 1017.1 1020.1 1023.1 1031.3 1026.5 1031.3 DAY 14 29 27 2 5 13 30 8 25 5 17 4 2001 1025.6 1029.9 1025.8 1025.2 1018.7 1017.2 1015.1 1018.6 1021.0 1027.0 1024.0 1025.3 1029.9 DAY 26 9 1 1 18 1 28 5 21 10 2 9 2002 1025.9 1025.8 1028.9 1020.9 1020.7 1018.2 1017.0 1016.7 1020.6 1022.6 1027.9 1030.8 1030.8 DAY 27 18 10 1 17 24 3 31 29 10 18 3 2003 1022.9 1022.6 1025.0 1022.6 1026.9 1020.6 1017.4 1016.4 1024.1 1023.0 1028.6 1030.8 1030.8 DAY 10 12 2 30 1 6 3 30 26 15 25 11 2004 1020.8 1018.6 1029.7 1020.7 1019.2 1020.2 1017.3 1015.8 1021.3 1026.6 1023.6 1029.1 1029.7 DAY 12 25 8 28 21 13 7 17 21 14 30 3 2005 1024.3 1023.9 1019.3 1028.2 1019.9 1017.1 1014.1 1016.6 1018.2 1026.9 1025.3 1029.7 1029.7 DAY 8 16 26 6 18 9 8 29 9 23 15 30 1977-2005 1035.5 1034.8 1036.5 1031.1 1031.5 1026.5 1025.0 1026.1 1029.3 1033.2 1034.5 1035.1 1036.5 YEAR-DAY 79-18 84-18 77- 9 79-27 82-10 79-10 80-10 80-30 77-30 84-21 83-26 84-18 77- 9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 108 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QNH PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1014.0 ****** 1011.0 1008.2 1007.7 1007.4 1015.1 1011.3 1012.4 1010.8 ****** DAY ** ** 4 ** 25 22 27 17 11 5 18 22 1978 1008.2 1012.8 1003.8 1004.7 1008.1 1000.8 1004.8 1010.6 1012.4 1015.6 1014.4 1006.6 1000.8 DAY 21 17 13 25 30 21 1 14 1 29 8 16 1979 1009.1 1007.9 1006.7 1009.8 1012.2 1009.9 1007.3 1010.1 1014.9 1012.1 1007.1 1006.8 1006.7 DAY 6 11 27 12 16 23 6 14 5 4 29 1 1980 1010.0 1009.4 1003.1 1008.3 1012.7 1009.8 1011.0 1009.6 1010.1 1013.2 1014.9 1009.6 1003.1 DAY 6 18 2 26 23 16 2 19 21 4 9 12 1981 1008.0 1008.9 1003.3 1004.5 1006.6 1009.0 1009.3 1011.2 1014.8 1017.2 1012.0 1012.7 1003.3 DAY 3 1 13 30 1 16 1 13 12 16 5 18 1982 1011.1 1009.1 1008.6 1007.9 1013.0 1012.2 1005.2 1009.1 1016.1 1013.7 1013.8 1013.3 1005.2 DAY 9 14 2 18 15 18 30 1 13 20 6 28 1983 1004.0 1008.8 1010.0 1012.8 1011.1 1010.2 1004.9 1008.8 1011.4 1012.1 1015.2 1012.1 1004.0 DAY 24 18 5 23 3 21 27 28 8 4 12 12 1984 1013.9 1008.4 1007.9 1010.7 1008.6 1008.8 1010.9 1008.2 1013.6 1010.6 1008.3 1013.4 1007.9 DAY 14 8 15 9 29 20 15 15 8 18 12 14 1985 1012.2 1003.4 1007.7 1008.9 1011.4 1008.7 1006.2 1009.2 1009.0 1011.2 1015.1 1001.9 1001.9 DAY 2 26 24 24 4 19 19 8 7 10 7 19 1986 1005.0 1008.8 1011.3 1009.0 1006.3 1004.7 1008.3 1009.3 1013.6 1014.0 1009.0 1005.0 1004.7 DAY 20 6 9 11 3 17 20 15 6 1 7 30 1987 1008.3 1006.3 999.9 1004.1 1008.4 1010.0 1005.6 1007.1 1009.7 1012.2 1008.0 1008.0 999.9 DAY 2 10 14 19 22 2 8 18 5 4 7 24 1988 1007.7 1007.6 1001.8 1006.6 1006.7 1003.0 1006.4 1005.4 1009.8 1008.9 1008.1 995.4 995.4 DAY 29 1 9 30 28 23 15 29 5 30 28 27 1989 1005.6 1008.8 1001.9 1010.9 1009.1 1005.8 1007.0 1004.5 1007.8 1008.6 1011.8 1009.3 1001.9 DAY 17 1 28 14 31 10 6 1 12 2 15 8 1990 1008.4 1003.4 1010.3 1003.1 1003.0 1003.0 1007.0 1006.0 1008.4 1012.2 1011.8 1009.3 1003.0 DAY 23 16 24 15 12 27 27 7 5 31 1 25 1991 1008.0 1008.0 1003.4 1004.7 1002.9 1003.7 1002.6 1006.7 1008.3 1014.1 1013.4 1005.9 1002.6 DAY 3 4 7 4 22 11 7 11 7 4 4 1 1992 1007.4 1005.2 1003.0 1008.2 1007.4 1004.7 1007.1 1009.0 1009.9 1011.7 1008.2 1010.1 1003.0 DAY 30 5 31 18 10 27 10 1 17 24 25 27 1993 1003.1 1009.1 1005.6 1006.4 1009.9 1008.1 1008.2 1006.9 1008.1 1011.1 1007.4 1012.1 1003.1 DAY 8 21 21 8 3 16 12 12 3 1 10 5 1994 1003.8 998.9 1005.7 1006.1 1004.9 1005.7 1004.1 1005.3 1013.7 1012.6 1006.4 1003.2 998.9 DAY 16 1 7 2 1 16 20 2 2 14 26 4 1995 1010.1 1004.9 1004.3 1008.7 1008.8 1004.1 1003.8 1005.7 1005.4 1011.6 1007.8 1012.3 1003.8 DAY 11 5 26 19 7 30 11 22 19 11 11 25 1996 1010.7 1002.3 1007.0 1005.3 1009.1 1007.3 1007.7 1005.8 1005.9 1006.1 1015.8 1010.3 1002.3 DAY 6 5 2 13 29 5 7 8 8 27 28 25 1997 1005.7 1007.9 1002.9 1003.1 1004.2 1006.1 1004.7 1005.3 1006.3 1012.2 1012.8 1006.8 1002.9 DAY 16 22 17 5 4 30 11 14 2 6 5 10 1998 999.7 1002.6 1004.2 1005.1 1006.6 1010.0 1000.7 1009.7 1008.6 1008.9 1012.1 1012.7 999.7 DAY 13 14 18 21 21 24 5 22 5 1 1 21 1999 1008.8 1002.1 1006.3 1006.2 1006.7 1000.3 1006.8 1008.2 1007.1 1012.6 1009.7 1010.9 1000.3 DAY 9 20 21 14 20 25 12 6 15 24 26 14 2000 1003.2 1007.7 1006.9 1007.8 1006.7 1006.6 1007.1 1005.2 1006.1 1015.1 1015.4 1009.8 1003.2 DAY 21 7 24 21 26 26 8 3 1 11 6 15 2001 1014.6 996.0 1003.1 1005.1 1003.0 1002.3 1005.6 1005.0 1009.3 1011.3 1005.7 1009.3 996.0 DAY 18 21 25 12 9 6 10 31 8 6 17 5 2002 1005.7 1006.3 1003.5 1000.2 1008.0 1002.4 1004.5 1004.1 1010.6 1011.6 1009.1 1004.3 1000.2 DAY 8 25 28 4 29 20 24 17 10 21 12 21 2003 1004.7 1000.5 1002.8 1008.7 1009.3 1006.1 1004.3 1010.4 1008.2 1008.7 1010.8 1009.7 1000.5 DAY 28 19 26 5 29 30 8 6 18 27 20 6 2004 1003.2 1000.7 1008.8 1002.6 1002.4 1005.8 1007.6 1002.8 1010.1 1012.8 1003.0 1009.6 1000.7 DAY 23 15 30 17 16 17 23 12 10 3 23 12 2005 999.3 1006.4 1004.0 1007.0 1004.2 1001.9 1002.6 1005.8 1009.1 1008.9 1014.0 1008.2 999.3 DAY 23 1 24 27 4 20 6 8 12 20 30 26 1977-2005 999.3 996.0 999.9 1000.2 1002.4 1000.3 1000.7 1002.8 1005.4 1006.1 1003.0 995.4 995.4 YEAR-DAY 5-23 1-21 87-14 2- 4 4-16 99-25 98- 5 4-12 95-19 96-27 4-23 88-27 88-27 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 109 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFF PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1013.0 1005.8 1002.7 1007.4 1013.8 1019.0 1020.9 1022.8 ****** 1978 1023.6 1023.8 1017.7 1010.9 1012.5 1007.2 1006.8 1007.2 1010.5 1019.0 1024.5 1019.5 1015.3 1979 1024.6 1019.4 1018.3 1013.9 1015.8 1010.2 1006.0 1009.5 1015.1 1016.6 1023.6 1020.9 1016.2 1980 1022.8 1024.6 1017.9 1011.2 1012.3 1008.5 1006.0 1007.6 1012.5 1018.2 1020.0 1021.5 1015.3 1981 1020.6 1019.1 1014.7 1014.1 1012.5 1010.0 1006.4 1007.7 1014.4 1021.2 1019.1 1021.9 1015.1 1982 1023.0 1022.0 1018.3 1013.0 1015.2 1009.1 1005.0 1007.9 1015.1 1018.8 1024.0 1024.5 1016.3 1983 1022.8 1019.2 1019.1 1014.6 1010.4 1008.6 1003.6 1005.5 1011.4 1019.1 1021.2 1024.8 1015.0 1984 1022.5 1029.0 1016.8 1012.2 1012.0 1008.5 1004.8 1004.1 1013.4 1020.7 1020.5 1029.7 1016.2 1985 1022.6 1013.3 1022.7 1012.3 1011.3 1005.8 ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1017.0 1020.0 1020.9 ****** 1987 1020.5 1019.4 1013.1 1014.0 1010.6 1007.3 1006.0 1005.6 1012.1 1022.0 1021.2 1019.5 1014.3 1988 1021.5 1020.2 1011.9 1013.6 1011.2 1004.0 1003.2 1005.6 1011.2 1017.3 1017.4 1016.9 1012.8 1989 1023.0 1026.0 1014.3 1014.8 1012.6 1005.4 1004.7 1005.4 1009.3 1015.8 1018.9 1018.6 1014.1 1990 1022.5 1018.2 1019.6 1012.0 1009.8 1004.4 1004.4 1005.6 1007.9 1017.0 1019.4 1022.9 1013.6 1991 1022.1 1021.2 1016.8 1012.8 1009.6 1007.3 1003.1 1004.8 1011.4 1017.3 1021.6 1017.8 1013.8 1992 1020.9 1015.3 1018.4 1012.7 1013.7 1006.0 1004.4 1009.7 1012.5 1016.3 1017.9 1019.7 1014.0 1993 1022.8 1021.1 1017.5 1011.8 1010.9 1007.2 1005.8 1007.7 1009.6 1021.2 1021.8 1022.7 1015.0 1994 1020.2 1019.3 1016.0 1014.1 1010.3 1005.4 1002.5 1004.0 1015.7 1019.7 1015.5 1021.4 1013.7 1995 1020.9 1019.2 1016.2 1011.7 1011.6 1006.0 1001.5 1003.9 1009.2 1018.0 1016.7 1023.0 1013.2 1996 1023.3 1019.2 1015.7 1014.8 1011.3 1007.0 1005.2 1005.3 1005.5 1015.2 1023.1 1019.7 1013.8 1997 1017.6 1020.7 1013.6 1009.2 1011.3 1004.3 1000.8 1003.5 1009.9 1013.1 1019.6 1018.2 1011.8 1998 1018.8 1019.2 1013.8 1010.5 1011.9 1008.6 1003.8 1006.9 1010.1 1017.1 1019.0 1022.2 1013.5 1999 1021.4 1015.0 1015.6 1014.1 1011.3 1005.5 1004.2 1004.9 1009.2 1015.0 1019.9 1023.0 1013.3 2000 1018.7 1019.9 1015.7 1009.9 1007.3 1006.2 1005.5 1005.7 1007.8 1016.8 1022.1 1018.8 1012.9 2001 1022.7 1017.1 1014.0 1010.0 1005.9 1005.6 1003.2 1005.0 1008.8 1014.6 1016.4 1019.2 1011.9 2002 1019.4 1018.9 1013.4 1010.0 1009.7 1004.6 1004.7 1002.5 1008.8 1012.6 1019.2 1021.4 1012.1 2003 1019.5 1014.5 1015.2 1013.6 1012.5 1005.9 1001.0 1005.5 1009.3 1011.6 1019.7 1021.6 1012.5 2004 1014.8 1015.0 1017.6 1012.1 1006.5 1004.8 1004.5 1003.1 1010.7 1017.1 1015.3 1020.1 1011.8 2005 1018.4 1017.7 1012.1 1013.8 1009.6 1004.8 1001.8 1004.5 1007.0 1015.1 1020.0 1020.8 1012.1 MEAN 1021.2 1019.5 1016.1 1012.5 1011.2 1006.6 1004.1 1005.8 1010.8 1017.2 1019.9 1021.2 1013.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 110 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFF PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1017.8 1012.0 1008.2 1014.7 1024.6 1035.5 1029.7 1036.2 ****** DAY ** ** ** ** 29 5 20 30 30 23 26 13 1978 1036.2 1039.4 1027.9 1021.9 1026.7 1021.0 1015.3 1013.3 1019.1 1028.0 1034.4 1037.3 1039.4 DAY 13 6 19 13 2 8 7 21 26 10 5 24 1979 1038.6 1029.6 1032.3 1031.7 1023.1 1021.1 1011.3 1017.4 1021.9 1027.0 1032.5 1033.5 1038.6 DAY 26 18 3 27 25 10 20 29 23 9 19 22 1980 1031.6 1035.5 1025.8 1023.6 1024.9 1017.5 1012.8 1020.8 1019.8 1024.4 1029.6 1031.9 1035.5 DAY 9 2 15 1 16 1 11 30 25 21 3 20 1981 1031.2 1027.5 1027.9 1024.4 1025.7 1018.8 1014.8 1012.7 1023.9 1030.4 1027.2 1030.3 1031.2 DAY 29 28 8 3 21 10 23 3 23 28 15 1 1982 1036.5 1034.7 1028.5 1028.1 1028.3 1016.2 1012.3 1013.7 1022.9 1034.9 1031.9 1036.1 1036.5 DAY 21 11 5 4 9 2 8 15 20 25 18 9 1983 1037.3 1029.8 1027.6 1022.3 1018.0 1018.1 1012.1 1013.6 1019.1 1025.7 1035.8 1033.1 1037.3 DAY 8 23 18 29 31 1 1 17 28 7 26 17 1984 1032.6 1040.3 1027.6 1025.8 1018.6 1016.7 1011.2 1010.1 1020.4 1034.1 1034.3 1038.6 1040.3 DAY 4 18 9 4 17 15 3 29 30 21 30 18 1985 1032.0 1028.4 1040.0 1029.0 1022.2 1012.9 ****** ****** ****** ****** ****** ****** ****** DAY 14 24 5 16 12 9 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.9 1033.2 1038.2 ****** DAY ** ** ** ** ** ** ** ** ** 15 15 10 1987 1033.8 1029.1 1028.8 1025.4 1017.4 1014.3 1012.6 1015.0 1020.1 1032.1 1038.9 1037.4 1038.9 DAY 20 6 22 6 13 6 10 5 23 28 30 1 1988 1031.9 1037.7 1024.3 1029.3 1023.6 1010.7 1009.5 1013.8 1020.5 1027.8 1026.4 1028.5 1037.7 DAY 3 7 17 8 4 8 27 21 30 16 5 29 1989 1034.4 1035.8 1023.4 1021.2 1021.9 1011.7 1012.4 1014.5 1023.2 1028.3 1028.2 1025.5 1035.8 DAY 28 3 12 3 1 6 19 19 23 23 8 18 1990 1032.8 1030.1 1035.5 1022.5 1020.8 1011.7 1011.4 1010.7 1015.9 1033.1 1029.4 1036.2 1036.2 DAY 26 7 17 3 15 6 31 29 27 15 16 30 1991 1031.0 1033.6 1028.6 1023.0 1019.4 1014.3 1012.6 1010.3 1021.7 1023.3 1028.8 1029.6 1033.6 DAY 12 13 12 14 25 17 11 27 27 13 27 17 1992 1034.4 1027.3 1032.4 1019.3 1025.9 1013.3 1013.0 1020.3 1021.3 1024.0 1029.7 1026.1 1034.4 DAY 10 16 12 30 2 6 12 31 29 29 3 2 1993 1036.7 1032.3 1030.2 1021.2 1024.5 1022.4 1011.6 1013.0 1019.3 1027.9 1032.2 1031.7 1036.7 DAY 6 9 16 23 9 22 27 24 22 8 30 6 1994 1034.4 1033.8 1024.5 1032.6 1020.9 1010.8 1008.6 1009.8 1022.4 1027.5 1022.5 1032.8 1034.4 DAY 9 18 24 5 18 8 1 6 23 24 2 7 1995 1034.0 1028.2 1029.7 1021.4 1020.9 1013.7 1007.9 1010.4 1020.1 1032.5 1029.6 1034.6 1034.6 DAY 7 12 3 7 26 23 23 24 27 17 15 10 1996 1035.4 1028.8 1023.0 1027.0 1018.5 1014.6 1014.2 1015.7 1014.5 1027.3 1036.4 1031.6 1036.4 DAY 10 4 20 4 26 11 3 29 24 2 18 7 1997 1029.6 1029.7 1031.6 1020.4 1019.3 1010.4 1009.1 1009.2 1017.2 1021.7 1033.5 1029.4 1033.5 DAY 19 7 11 13 7 4 19 28 15 9 7 28 1998 1028.9 1034.1 1026.7 1021.3 1021.8 1014.7 1012.8 1010.9 1018.7 1031.9 1027.6 1032.0 1034.1 DAY 22 23 26 1 3 5 15 8 27 9 20 29 1999 1038.1 1025.8 1024.9 1023.4 1018.1 1014.3 1011.6 1011.6 1018.8 1025.4 1033.7 1033.7 1038.1 DAY 2 11 18 22 23 16 27 19 28 26 30 24 2000 1029.0 1031.5 1024.6 1020.2 1014.9 1017.0 1011.0 1012.3 1015.6 1022.6 1033.8 1027.2 1033.8 DAY 31 29 16 2 11 13 30 8 25 15 17 4 2001 1030.8 1033.2 1029.8 1024.7 1015.9 1011.9 1007.6 1010.6 1018.8 1026.9 1023.5 1028.4 1033.2 DAY 25 9 11 1 18 11 29 5 21 27 2 22 2002 1029.8 1030.6 1032.2 1020.0 1018.3 1012.9 1010.4 1010.1 1016.1 1017.8 1029.0 1036.5 1036.5 DAY 27 18 10 1 17 24 28 31 29 31 18 3 2003 1027.2 1026.3 1031.1 1023.9 1028.9 1017.4 1010.6 1010.1 1021.4 1019.8 1030.8 1038.5 1038.5 DAY 23 12 2 29 1 6 3 30 26 15 23 12 2004 1023.9 1020.9 1031.6 1022.2 1016.6 1016.0 1010.8 1008.4 1016.2 1024.4 1025.9 1033.7 1033.7 DAY 1 25 8 5 21 13 7 30 21 14 30 3 2005 1027.2 1028.0 1023.4 1031.4 1016.0 1013.0 1006.0 1010.6 1011.3 1026.9 1026.9 1035.0 1035.0 DAY 8 16 26 6 18 9 8 29 9 23 14 30 1977-2005 1038.6 1040.3 1040.0 1032.6 1028.9 1022.4 1015.3 1020.8 1024.6 1035.5 1038.9 1038.6 1040.3 YEAR-DAY 79-26 84-18 85- 5 94- 5 3- 1 93-22 78- 7 80-30 77-30 77-23 87-30 84-18 84-18 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 111 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFF PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1005.0 999.2 978.6 998.9 1007.7 1003.9 1011.4 1007.0 ****** DAY ** ** ** ** 25 22 28 17 11 5 18 22 1978 1008.4 1012.5 1001.0 997.6 1002.6 991.1 994.0 1001.9 1005.6 1009.6 1012.5 1004.4 991.1 DAY 21 17 13 25 31 21 1 5 1 29 1 16 1979 1006.7 1008.4 1002.2 1003.8 1006.4 1002.2 997.9 1002.2 1008.1 1005.5 1003.1 1004.5 997.9 DAY 6 11 27 12 16 23 6 14 5 4 29 1 1980 1008.1 1011.1 1002.2 1002.0 1004.8 1001.3 1002.5 1001.1 1007.1 1005.6 1011.0 1009.0 1001.1 DAY 6 18 2 26 23 16 6 19 13 4 9 12 1981 1009.1 1006.3 1000.1 998.9 999.6 1000.5 1000.0 1002.0 1006.2 1012.5 1006.0 1011.4 998.9 DAY 3 9 13 30 1 16 1 13 12 16 13 18 1982 1008.7 1010.5 1006.9 1000.6 1004.9 1003.5 993.7 999.4 1009.0 1007.4 1011.7 1014.2 993.7 DAY 9 4 24 18 15 11 30 4 13 20 6 28 1983 1002.0 1007.6 1006.5 1007.8 1005.2 1000.6 993.1 1000.5 1002.7 1005.8 1014.1 1008.8 993.1 DAY 24 21 5 23 3 21 27 28 8 4 12 12 1984 1014.9 1010.4 1004.7 1004.9 1000.5 1000.4 1001.0 997.8 1006.7 1003.8 1003.7 1013.6 997.8 DAY 14 8 12 25 28 20 15 15 8 18 12 14 1985 1013.8 1000.6 1004.3 1000.6 1005.7 999.7 ****** ****** ****** ****** ****** ****** ****** DAY 2 16 20 24 4 20 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1010.2 1005.0 1005.2 ****** DAY ** ** ** ** ** ** ** ** ** 23 9 30 1987 1010.4 1006.4 1002.1 1000.3 1002.6 1002.3 997.7 998.9 1001.5 1009.1 1003.0 1007.4 997.7 DAY 2 10 14 19 24 19 8 18 5 4 7 24 1988 1011.1 1006.5 999.2 1001.3 1000.1 995.3 998.3 999.5 1002.6 1006.1 1007.1 995.2 995.2 DAY 29 2 21 23 28 15 15 29 5 30 20 27 1989 1009.1 1012.7 1001.2 1007.5 1003.4 999.0 998.4 998.3 1001.6 1003.8 1010.8 1011.6 998.3 DAY 17 23 27 14 31 23 6 2 12 2 15 8 1990 1010.2 1004.2 1009.8 1001.0 995.9 994.8 998.2 998.0 1001.9 1008.5 1010.2 1013.1 994.8 DAY 23 16 14 29 12 27 27 7 1 1 8 17 1991 1012.5 1008.6 1004.8 1000.7 999.2 997.1 993.5 999.8 1001.1 1010.9 1011.4 1004.7 993.5 DAY 26 27 6 4 22 11 7 11 7 4 4 1 1992 1011.1 1006.6 1001.6 1005.4 1002.2 997.8 999.9 1002.4 1004.6 1008.9 1004.4 1012.1 997.8 DAY 1 24 30 22 10 27 23 24 17 24 25 14 1993 1009.2 1010.9 1003.7 1001.9 1006.1 1001.2 1000.9 999.3 1000.7 1005.9 1005.3 1015.8 999.3 DAY 8 21 8 20 23 16 24 12 3 1 10 28 1994 1005.9 999.9 1004.0 1005.3 1002.2 998.8 995.4 997.7 1008.0 1011.0 1006.6 1003.6 995.4 DAY 16 1 7 2 1 16 20 2 1 14 23 4 1995 1011.8 1007.2 1003.7 1005.4 1003.3 996.5 994.9 997.1 999.5 1007.6 1003.5 1014.4 994.9 DAY 11 8 26 19 7 30 16 22 19 4 11 25 1996 1010.6 1008.6 1007.5 1000.8 1003.7 999.7 999.7 998.2 997.7 1002.2 1015.0 1009.4 997.7 DAY 6 10 2 13 29 1 7 8 8 27 6 25 1997 1005.9 1008.2 1000.3 999.0 998.7 998.9 996.8 996.0 999.0 1006.7 1007.8 1005.3 996.0 DAY 16 22 25 5 4 30 16 14 2 6 5 10 1998 1002.6 1003.5 1000.0 999.3 1001.0 1003.2 992.0 1002.0 1001.6 1002.5 1008.9 1013.7 992.0 DAY 13 8 18 21 21 24 5 23 5 1 1 21 1999 1009.1 1001.6 1005.7 1002.1 1003.3 993.4 999.5 999.9 999.8 1008.5 1009.0 1010.1 993.4 DAY 9 20 21 14 20 25 4 6 15 18 25 14 2000 1003.8 1011.1 1004.3 1001.1 999.2 1000.5 998.2 997.1 997.9 1011.0 1015.0 1010.9 997.1 DAY 21 7 24 10 26 8 8 3 1 11 6 21 2001 1015.9 996.3 999.2 1000.7 997.7 1000.2 995.7 996.6 1001.2 1006.5 1002.7 1007.4 995.7 DAY 12 21 24 12 8 28 10 31 8 6 18 20 2002 1003.3 1004.8 999.4 997.8 1001.7 994.7 996.6 994.8 1002.7 1007.4 1006.3 1003.9 994.7 DAY 8 26 28 3 29 20 24 17 11 21 12 21 2003 1007.2 1000.2 999.3 1004.0 1003.5 999.0 994.7 1002.1 1000.6 1003.7 1009.4 1009.2 994.7 DAY 28 19 26 26 23 18 8 6 18 27 2 19 2004 1003.3 995.0 1004.6 1001.2 997.0 998.1 999.1 993.5 1002.5 1007.6 999.3 1009.7 993.5 DAY 14 15 30 17 12 17 23 12 10 3 23 12 2005 1001.1 1005.8 1003.1 1002.3 998.5 992.6 992.3 996.0 1002.0 1003.6 1013.2 1007.3 992.3 DAY 23 1 9 27 4 20 6 8 4 20 18 17 1977-2005 1001.1 995.0 999.2 997.6 995.9 991.1 978.6 993.5 997.7 1002.2 999.3 995.2 978.6 YEAR-DAY 5-23 4-15 88-21 78-25 90-12 78-21 77-28 4-12 96- 8 96-27 4-23 88-27 77-28 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 112 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF COMPUTED QFF PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1015.1 1021.8 1019.7 1022.7 ****** 1982 1020.5 1023.1 ****** ****** 1015.8 ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1019.6 1020.7 ****** ****** 1984 ****** ****** ****** ****** 1014.7 1008.9 1005.4 1004.5 1014.3 1021.4 1021.3 1030.1 ****** 1985 1023.5 1014.4 1023.6 1013.0 1012.4 1006.0 1003.4 1007.5 1008.9 1016.1 1019.0 1019.5 1013.9 1986 1019.6 1016.7 1020.0 1013.9 1009.2 1003.7 1005.0 1007.3 1011.7 ****** 1023.5 ****** ****** 1987 1020.6 ****** 1012.0 1013.0 1008.0 1006.0 ****** ****** ****** ****** ****** ****** ****** 1988 1020.7 1019.2 1010.9 1012.5 1009.9 1002.9 1001.9 1004.7 1010.0 1016.0 1016.3 1015.8 1011.7 1989 1023.1 1024.9 1012.6 1013.0 1011.4 1004.6 ****** ****** 1005.0 ****** 1017.7 1017.5 ****** 1990 1021.4 1017.3 1018.4 1010.9 1008.6 1003.2 1003.0 1004.2 1006.7 1015.8 1018.2 1021.8 1012.5 1991 1021.0 1020.2 1015.6 1011.9 1008.4 1006.1 1002.0 1003.7 1010.0 1016.0 1020.3 1016.8 1012.7 1992 1019.8 1014.5 1017.3 1011.5 1012.4 1004.6 1003.1 1008.2 1011.2 1015.0 1016.7 1018.6 1012.7 1993 1021.8 1020.3 1016.4 1010.8 1009.7 1006.0 1004.6 1006.4 1008.4 1019.9 1020.5 1021.6 1013.9 1994 1019.1 1018.2 1014.9 1013.0 1009.2 1004.2 1001.3 1002.7 1014.5 1018.3 1014.3 1020.4 1012.5 1995 1019.9 1018.2 1015.2 1010.6 1010.5 1004.8 1000.2 1002.7 1008.0 1017.1 1015.6 1021.9 1012.1 1996 1022.2 1018.1 1014.6 1013.6 1010.2 1005.8 1004.5 1005.0 1005.4 1014.9 1023.0 1019.6 1013.1 1997 1017.6 1020.8 1013.5 1009.0 1011.1 1004.1 1000.5 1003.3 1009.7 1012.9 1019.5 1018.1 1011.7 1998 1018.7 1019.1 1013.7 1010.3 1010.7 1007.3 1002.6 1005.5 1008.8 1015.7 1017.7 1020.9 1012.6 1999 1020.4 1014.0 1014.5 1012.9 1010.0 1004.3 1002.9 1003.8 1008.0 1013.8 1018.7 1021.7 1012.1 2000 1017.8 1018.9 1014.7 1009.1 1006.2 1005.1 1004.4 1004.7 1007.5 1016.8 1022.1 1018.8 1012.2 2001 1022.7 1017.0 1013.9 1009.9 1005.6 1003.9 1003.1 1004.9 1008.7 1014.5 1016.3 1019.1 1011.6 2002 1019.3 1018.8 1013.4 1009.8 1009.5 1004.5 1004.6 1002.4 1008.7 1012.4 1019.1 1021.3 1012.0 2003 1019.4 1014.5 1015.2 1013.6 1012.4 1005.9 1001.1 1005.5 1009.2 1011.6 1019.7 1021.6 1012.5 2004 1014.8 1015.0 1017.5 1012.0 1006.5 1004.7 1004.5 1003.1 1010.7 1017.1 1015.3 1020.1 1011.8 2005 1018.4 1017.8 1012.1 1013.7 1009.6 1004.8 1001.8 1004.5 1007.0 1015.0 1020.0 1020.8 1012.1 MEAN 1020.1 1018.1 1015.2 1011.8 1010.1 1005.1 1003.0 1004.7 1009.4 1016.3 1018.9 1020.4 1012.8 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 113 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF COMPUTED QFF PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1025.1 1030.9 1028.0 1030.8 ****** DAY ** ** ** ** ** ** ** ** 23 28 15 1 1982 1032.1 1036.0 ****** ****** 1028.6 ****** ****** ****** ****** ****** ****** ****** ****** DAY 23 11 ** ** 9 ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.3 1033.9 ****** ****** DAY ** ** ** ** ** ** ** ** ** 28 5 ** 1984 ****** ****** ****** ****** 1019.1 1017.1 1011.5 1008.6 1021.2 1034.6 1035.0 1037.2 ****** DAY ** ** ** ** 17 15 3 12 30 21 30 19 1985 1032.7 1029.0 1041.0 1029.7 1022.9 1013.3 1008.8 1014.0 1018.7 1027.6 1026.9 1033.3 1041.0 DAY 14 24 5 16 12 9 16 30 22 31 17 8 1986 1032.8 1025.0 1027.9 1021.2 1020.3 1012.6 1010.3 1011.8 1016.5 ****** 1030.9 ****** ****** DAY 28 13 16 4 18 3 22 31 30 ** 16 ** 1987 1032.4 ****** 1027.5 1024.2 1016.0 1012.6 ****** ****** ****** ****** ****** ****** ****** DAY 20 ** 22 6 6 6 ** ** ** ** ** ** 1988 1031.3 1036.5 1023.1 1029.0 1021.9 1009.5 1008.0 1012.0 1019.0 1026.1 1024.7 1027.4 1036.5 DAY 3 7 17 8 4 8 27 21 21 16 5 29 1989 1033.2 1034.8 1022.2 1019.5 1020.9 1010.3 ****** ****** 1012.3 ****** 1026.9 1024.2 ****** DAY 28 3 12 2 1 6 ** ** 19 ** 8 18 1990 1031.6 1029.2 1034.4 1021.2 1019.4 1010.2 1009.7 1009.3 1014.5 1031.6 1028.0 1034.8 1034.8 DAY 26 7 17 3 15 6 31 29 27 15 16 29 1991 1029.7 1032.4 1027.4 1021.7 1018.0 1012.6 1011.0 1008.8 1020.1 1021.9 1027.2 1028.4 1032.4 DAY 12 13 12 14 25 17 11 27 27 13 27 17 1992 1033.3 1026.2 1031.2 1018.0 1024.5 1011.7 1011.3 1018.9 1019.7 1022.4 1028.1 1024.8 1033.3 DAY 10 16 12 30 2 6 12 31 29 29 17 2 1993 1035.5 1030.9 1028.9 1019.9 1023.2 1020.6 1010.1 1011.6 1017.5 1026.6 1031.1 1030.3 1035.5 DAY 6 9 16 23 9 22 27 24 22 8 30 6 1994 1033.0 1032.8 1023.2 1031.3 1019.5 1009.7 1007.3 1008.1 1020.9 1025.8 1021.2 1031.6 1033.0 DAY 9 18 24 5 18 8 1 6 23 24 2 7 1995 1032.6 1026.8 1028.0 1020.2 1019.8 1012.2 1006.5 1008.7 1018.7 1031.0 1028.2 1033.4 1033.4 DAY 7 12 3 7 26 23 23 24 27 17 15 10 1996 1034.3 1027.7 1022.1 1025.7 1016.8 1013.1 1012.5 1015.4 1014.4 1025.3 1036.3 1031.5 1036.3 DAY 10 4 20 4 26 11 3 29 24 18 18 7 1997 1029.6 1030.5 1031.5 1020.0 1019.0 1010.2 1008.1 1009.0 1017.0 1021.6 1033.1 1029.1 1033.1 DAY 19 8 11 13 15 4 19 28 15 9 7 28 1998 1028.3 1033.8 1026.6 1021.1 1020.9 1013.2 1011.6 1009.5 1017.1 1030.5 1025.9 1030.6 1033.8 DAY 22 23 26 1 3 5 15 8 12 9 20 29 1999 1039.6 1024.5 1023.7 1021.8 1016.9 1012.7 1010.3 1010.0 1017.4 1024.1 1032.4 1032.2 1039.6 DAY 2 11 18 22 23 16 27 19 28 26 30 24 2000 1027.8 1030.2 1023.7 1019.0 1013.8 1015.8 1009.9 1010.5 1015.6 1022.5 1034.3 1027.1 1034.3 DAY 31 29 16 2 11 13 30 8 25 15 17 4 2001 1030.9 1033.2 1030.0 1024.4 1015.8 1012.3 1007.6 1010.4 1018.7 1026.8 1023.5 1027.8 1033.2 DAY 25 9 11 1 18 1 29 5 21 27 2 22 2002 1029.6 1030.7 1032.6 1019.9 1018.0 1012.7 1010.2 1010.1 1016.0 1017.8 1028.8 1036.5 1036.5 DAY 27 18 10 1 17 24 28 31 29 31 18 3 2003 1027.2 1026.3 1031.1 1023.9 1028.8 1017.4 1010.6 1010.1 1021.4 1019.8 1030.8 1038.5 1038.5 DAY 23 12 2 29 1 6 3 30 26 15 23 12 2004 1023.8 1020.6 1031.5 1022.2 1016.5 1016.0 1010.8 1008.3 1016.2 1024.4 1025.9 1033.6 1033.6 DAY 1 25 8 5 21 13 7 30 21 27 30 3 2005 1027.2 1028.0 1023.4 1031.4 1015.9 1012.9 1006.0 1010.6 1011.3 1026.8 1026.9 1035.0 1035.0 DAY 8 17 26 6 18 9 8 29 9 23 14 30 1977-2005 1039.6 1036.5 1041.0 1031.4 1028.8 1020.6 1012.5 1018.9 1025.1 1034.6 1036.3 1038.5 1041.0 YEAR-DAY 99- 2 88- 7 85- 5 5- 6 3- 1 93-22 96- 3 92-31 81-23 84-21 96-18 3-12 85- 5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 114 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF COMPUTED QFF PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1006.5 1013.1 1007.0 1012.4 ****** DAY ** ** ** ** ** ** ** ** 19 16 13 18 1982 1009.5 1011.3 ****** ****** 1006.7 ****** ****** ****** ****** ****** ****** ****** ****** DAY 9 4 ** ** 15 ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1006.2 1013.1 ****** ****** DAY ** ** ** ** ** ** ** ** ** 4 12 ** 1984 ****** ****** ****** ****** 1009.1 1001.2 1001.9 998.4 1007.2 1004.8 1004.9 1020.1 ****** DAY ** ** ** ** 1 20 29 15 8 18 12 7 1985 1014.7 1002.3 1004.5 1001.6 1006.3 1000.5 998.0 1001.9 1001.8 1007.9 1012.5 998.7 998.0 DAY 2 26 20 24 4 20 19 8 7 18 10 19 1986 1006.8 1008.8 1012.5 1006.3 1000.1 997.3 1000.5 1001.7 1007.2 ****** 1010.6 ****** ****** DAY 19 6 1 11 3 17 26 15 6 ** 30 ** 1987 1009.5 ****** 1001.0 999.3 1001.6 1001.4 ****** ****** ****** ****** ****** ****** ****** DAY 2 ** 14 19 24 19 ** ** ** ** ** ** 1988 1010.2 1005.5 998.2 1000.4 999.3 994.3 997.3 999.8 1001.6 1005.1 1006.1 994.5 994.3 DAY 29 2 21 23 28 23 15 19 5 30 20 27 1989 1011.9 1011.6 999.7 1006.6 1002.1 998.2 ****** ****** 1000.4 ****** 1009.7 1010.7 ****** DAY 2 23 28 14 31 23 ** ** 12 ** 15 8 1990 1009.1 1003.3 1008.5 1000.1 995.1 993.6 996.1 997.0 1000.6 1007.2 1009.3 1012.3 993.6 DAY 23 16 14 29 12 27 27 7 1 1 8 17 1991 1011.6 1007.6 1003.8 999.8 998.3 996.1 993.2 998.9 1000.2 1009.9 1010.4 1004.0 993.2 DAY 26 27 6 4 22 11 7 11 7 4 4 1 1992 1010.1 1005.6 1000.9 1004.3 1001.2 996.6 998.5 1001.3 1003.6 1008.1 1003.8 1011.1 996.6 DAY 1 24 30 22 10 27 23 1 25 24 25 14 1993 1008.2 1009.8 1002.9 1001.3 1004.9 1000.1 999.9 998.5 999.8 1005.0 1004.4 1014.6 998.5 DAY 8 21 8 20 23 16 24 12 3 1 10 28 1994 1005.1 996.6 1003.4 1004.2 1000.9 997.8 994.6 996.4 1007.0 1010.2 1005.7 1002.8 994.6 DAY 16 1 7 2 1 16 20 2 1 14 23 4 1995 1010.8 1006.2 1002.7 1005.0 1002.2 995.4 993.4 996.2 998.2 1006.5 1002.7 1013.5 993.4 DAY 11 8 26 19 7 30 16 22 19 4 11 25 1996 1009.7 1007.4 1006.6 1000.0 1002.7 998.9 999.0 998.0 997.6 1002.1 1014.9 1009.3 997.6 DAY 6 10 2 13 29 1 7 8 8 27 6 25 1997 1005.9 1008.1 1000.2 998.8 998.6 998.9 996.5 995.9 998.3 1006.5 1007.8 1005.3 995.9 DAY 16 22 25 5 4 30 16 14 2 6 5 10 1998 1002.5 1003.4 999.8 999.0 1000.1 1002.2 991.1 1001.1 1000.2 1001.5 1008.0 1012.4 991.1 DAY 13 8 18 21 21 28 5 22 5 1 1 21 1999 1008.1 1000.7 1004.6 1001.4 1002.1 992.4 998.5 999.1 998.8 1007.6 1007.8 1009.1 992.4 DAY 9 20 21 14 20 25 4 6 16 18 25 14 2000 1003.2 1010.2 1003.3 1000.3 998.4 999.5 997.7 996.5 997.5 1010.8 1014.7 1010.9 996.5 DAY 21 7 24 10 26 26 8 3 1 11 6 21 2001 1016.2 993.5 999.0 1000.9 997.0 993.9 995.7 996.4 1001.0 1006.4 1002.8 1007.0 993.5 DAY 12 21 25 12 9 6 10 30 8 6 18 20 2002 1003.2 1004.8 999.1 997.1 1001.8 994.6 996.2 994.7 1002.6 1007.2 1006.3 1003.9 994.6 DAY 8 26 28 3 29 20 24 17 11 21 12 21 2003 1007.5 1002.7 999.3 1004.0 1003.5 999.1 994.7 1002.1 1000.7 1003.7 1009.4 1009.2 994.7 DAY 28 19 26 26 23 18 8 6 18 27 2 19 2004 1003.2 994.9 1004.6 1001.2 996.9 998.2 999.1 993.4 1002.4 1007.6 999.3 1009.6 993.4 DAY 14 15 30 17 12 17 23 12 10 3 23 12 2005 1001.1 1005.8 1003.1 1002.3 998.5 992.6 992.3 996.0 1001.9 1003.5 1013.2 1007.2 992.3 DAY 23 1 9 27 4 20 6 8 4 20 18 17 1977-2005 1001.1 993.5 998.2 997.1 995.1 992.4 991.1 993.4 997.5 1001.5 999.3 994.5 991.1 YEAR-DAY 5-23 1-21 88-21 2- 3 90-12 99-25 98- 5 4-12 0- 1 98- 1 4-23 88-27 98- 5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 115 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFE PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 898.5 ****** 894.2 890.0 888.3 891.1 895.7 897.6 897.2 897.0 ****** 1978 896.9 896.6 893.9 890.5 892.8 890.3 891.2 890.8 893.3 898.3 899.4 895.2 894.1 1979 897.4 894.1 894.0 893.8 895.4 892.7 890.5 892.3 896.5 896.9 899.7 895.7 894.9 1980 895.6 896.3 893.7 891.6 893.6 891.1 890.3 891.4 894.1 896.6 897.4 896.2 894.0 1981 895.3 894.2 892.3 892.6 893.5 892.5 890.6 891.8 896.5 899.5 896.3 896.6 894.3 1982 895.3 894.3 893.6 893.6 896.3 892.3 889.7 891.3 896.3 897.4 899.1 897.8 894.7 1983 896.4 894.3 894.6 893.7 892.8 892.4 889.3 890.3 894.0 897.9 898.7 898.7 894.4 1984 896.4 900.5 893.7 892.3 892.7 891.8 890.2 889.4 895.6 899.2 897.9 901.2 895.1 1985 896.2 889.8 897.7 892.5 893.4 890.3 887.5 890.1 890.9 894.3 895.3 893.3 892.6 1986 892.6 891.0 893.2 891.9 889.9 886.7 888.9 890.4 893.2 895.1 894.4 892.8 891.7 1987 893.5 892.7 888.1 890.9 890.6 889.1 888.3 888.4 892.1 897.3 896.1 893.2 891.7 1988 892.8 892.3 888.2 890.9 890.1 886.3 886.1 887.7 891.6 894.8 893.5 891.3 890.5 1989 892.7 895.3 889.4 892.2 891.2 887.8 888.1 888.2 889.9 894.2 894.2 892.4 891.3 1990 893.6 890.8 893.7 889.2 889.7 886.9 887.2 888.3 889.6 894.4 895.1 894.5 891.1 1991 893.2 893.2 891.1 890.4 888.3 888.4 886.0 887.4 891.8 894.8 895.9 891.2 891.0 1992 892.1 888.6 891.2 889.4 891.2 887.1 887.2 890.3 892.4 893.5 893.9 892.7 890.8 1993 893.3 893.0 891.3 889.2 889.9 888.3 888.3 889.6 890.5 897.1 895.1 895.4 891.8 1994 892.6 891.2 890.9 891.3 890.0 886.8 885.4 886.9 894.4 896.1 891.8 893.7 890.9 1995 893.9 892.1 891.0 889.2 891.2 887.3 884.9 887.1 889.9 894.9 892.5 894.9 890.7 1996 894.5 891.7 890.0 891.2 890.7 888.3 888.6 888.8 888.3 893.7 897.8 894.5 891.5 1997 891.3 892.8 888.5 888.0 891.0 887.4 885.1 887.4 891.4 892.8 895.2 892.5 890.3 1998 891.1 891.8 889.4 889.7 890.9 890.0 886.6 889.4 890.6 894.7 895.0 896.2 891.3 1999 893.6 889.9 890.3 891.0 890.2 887.2 886.6 888.0 890.0 893.1 894.1 896.2 890.9 2000 891.2 892.1 890.3 889.2 888.2 887.7 888.0 888.4 890.0 894.9 896.8 893.5 890.9 2001 895.3 891.2 890.6 889.7 887.8 887.0 887.0 888.7 890.7 893.6 893.2 894.3 890.8 2002 893.3 892.6 890.2 888.0 889.5 887.0 888.2 886.7 891.4 893.2 895.4 893.5 890.8 2003 892.8 889.3 890.4 891.2 891.7 887.9 885.4 889.1 890.8 892.0 895.2 895.1 890.9 2004 889.4 890.4 893.4 889.9 888.0 887.8 888.1 887.1 892.3 895.6 892.7 893.2 890.7 2005 891.5 891.1 888.9 892.1 890.4 887.7 887.0 888.1 890.1 894.8 895.6 895.6 891.1 MEAN 893.7 892.6 891.8 890.9 891.2 888.8 887.9 889.1 892.2 895.5 895.7 894.8 892.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 116 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFE PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 911.2 ****** 898.7 894.7 891.5 895.9 903.6 906.9 904.1 905.6 ****** DAY ** ** 9 ** 28 9 21 23 30 23 26 18 1978 905.9 908.1 902.3 897.9 901.2 899.8 896.9 895.3 901.1 906.1 906.8 908.2 908.2 DAY 13 5 19 13 2 8 7 21 26 10 5 23 1979 909.3 901.0 902.9 904.8 901.2 901.9 895.2 898.1 901.1 904.8 907.8 903.8 909.3 DAY 18 27 5 27 27 10 20 29 23 9 10 22 1980 902.9 903.2 901.6 900.7 901.9 897.6 896.4 900.9 900.8 900.9 904.9 903.8 904.9 DAY 31 2 27 1 16 11 11 30 25 9 2 20 1981 904.2 900.0 902.2 900.2 903.5 898.8 895.7 896.0 902.2 905.7 903.4 905.0 905.7 DAY 8 27 8 19 21 10 29 3 27 28 15 1 1982 904.6 900.6 900.9 903.3 905.3 897.9 897.0 896.0 901.7 907.3 905.0 905.1 907.3 DAY 21 10 5 4 9 6 7 15 20 25 18 9 1983 908.5 901.9 901.3 900.3 899.5 898.0 895.5 896.4 899.9 904.3 907.6 907.1 908.5 DAY 7 10 14 29 18 1 1 17 27 28 26 3 1984 905.6 909.6 901.9 899.4 898.3 897.4 895.5 894.0 900.5 907.8 906.9 909.7 909.7 DAY 4 18 4 4 17 15 3 30 30 21 30 18 1985 904.3 898.8 909.9 905.6 901.7 895.2 891.5 894.2 898.8 902.7 902.4 901.9 909.9 DAY 14 24 5 16 12 9 16 30 22 31 17 14 1986 901.6 896.5 898.9 899.3 897.8 892.9 891.6 894.1 896.6 902.5 903.2 904.0 904.0 DAY 28 22 27 4 18 2 3 17 21 14 15 6 1987 903.8 899.6 899.2 898.2 896.1 892.7 893.5 894.5 897.7 903.4 907.2 904.9 907.2 DAY 20 1 22 30 13 6 10 5 23 16 30 1 1988 901.0 902.7 896.8 902.2 898.5 891.5 889.3 893.7 897.9 902.4 902.9 898.2 902.9 DAY 10 6 17 8 4 7 30 21 21 28 5 21 1989 902.7 902.1 895.2 896.1 895.9 891.4 892.5 894.0 898.8 901.5 900.7 897.2 902.7 DAY 21 3 8 9 20 1 19 19 23 23 7 18 1990 901.4 899.8 903.4 895.4 897.1 891.7 890.9 891.7 894.7 905.4 903.4 901.8 905.4 DAY 26 7 9 23 15 6 16 2 27 15 22 28 1991 900.5 900.6 897.6 896.6 894.4 894.6 892.1 891.1 897.7 899.1 900.6 898.3 900.6 DAY 11 15 12 28 4 17 11 27 15 13 27 17 1992 902.4 896.3 900.0 894.0 898.4 892.2 892.1 896.5 897.5 900.1 903.7 898.8 903.7 DAY 9 16 12 30 2 6 7 31 29 29 3 2 1993 904.7 902.7 899.6 895.3 898.5 898.7 893.5 893.9 897.9 901.8 902.8 901.6 904.7 DAY 6 9 16 23 9 22 27 28 22 20 21 6 1994 903.7 901.9 896.6 902.4 897.1 890.7 889.5 890.8 899.8 901.0 898.7 901.3 903.7 DAY 9 18 24 5 18 8 13 6 22 23 2 7 1995 903.6 899.2 899.7 894.3 896.5 892.2 888.6 892.5 896.2 905.6 902.3 902.7 905.6 DAY 7 12 3 7 26 1 23 24 27 17 15 10 1996 903.9 898.1 894.4 899.8 896.1 893.9 894.9 897.1 895.0 901.7 907.6 901.8 907.6 DAY 9 13 28 4 26 11 3 29 30 2 18 7 1997 900.1 898.9 902.0 894.9 896.3 891.0 891.3 891.3 896.6 899.5 906.6 900.6 906.6 DAY 23 7 11 13 15 4 19 21 7 8 7 28 1998 899.1 904.4 899.3 898.6 897.6 894.3 892.4 892.3 896.4 904.6 903.2 904.4 904.6 DAY 22 22 26 12 8 5 19 9 12 9 20 29 1999 905.4 898.7 896.7 897.3 894.5 895.2 890.5 893.5 895.5 898.6 904.0 904.3 905.4 DAY 2 11 1 22 23 16 18 20 23 26 30 24 2000 898.9 901.1 897.1 894.8 893.2 893.8 893.8 893.1 895.2 899.8 904.7 901.0 904.7 DAY 24 29 26 2 4 13 30 8 25 15 17 4 2001 900.5 904.1 900.6 900.6 895.0 893.6 890.8 893.6 896.2 901.9 899.3 900.0 904.1 DAY 26 9 1 1 18 1 28 5 19 10 2 9 2002 901.2 901.6 904.7 895.5 895.6 893.8 892.2 891.8 896.1 897.5 902.4 905.3 905.3 DAY 27 18 10 1 17 24 2 29 29 10 17 3 2003 898.7 899.1 901.0 898.5 901.6 895.7 892.4 892.0 898.5 898.5 903.4 906.3 906.3 DAY 10 12 2 30 1 6 3 30 26 15 25 11 2004 896.1 894.4 905.4 896.9 895.4 895.1 893.1 891.7 896.9 901.9 898.3 903.6 905.4 DAY 12 27 8 11 21 13 7 17 29 14 30 3 2005 899.7 899.4 894.7 902.8 895.8 892.7 890.0 892.5 894.0 902.5 900.4 904.2 904.2 DAY 9 16 26 5 18 7 8 29 9 23 15 28 1977-2005 909.3 909.6 911.2 905.6 905.3 901.9 897.0 900.9 903.6 907.8 907.8 909.7 911.2 YEAR-DAY 79-18 84-18 77- 9 85-16 82- 9 79-10 82- 7 80-30 77-30 84-21 79-10 84-18 77- 9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 117 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFE PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 892.0 ****** 889.4 885.8 884.1 883.9 890.8 890.2 889.1 888.8 ****** DAY ** ** 4 ** 4 21 27 17 11 17 17 22 1978 888.0 887.8 883.0 879.6 884.4 877.9 881.1 887.0 888.0 891.6 892.9 885.0 877.9 DAY 21 17 13 25 31 21 1 5 1 29 7 16 1979 887.9 884.2 882.2 887.5 889.8 886.6 883.4 886.6 890.1 890.2 884.2 886.2 882.2 DAY 6 11 27 12 17 23 6 14 5 4 29 1 1980 886.2 884.8 879.4 884.2 888.9 885.2 886.6 885.7 889.1 888.9 890.6 886.8 879.4 DAY 6 18 2 26 23 16 2 19 21 4 9 11 1981 885.3 886.7 881.2 880.9 884.0 885.8 885.2 887.5 890.8 892.8 887.4 889.1 880.9 DAY 3 1 13 30 1 4 1 13 12 16 5 18 1982 887.8 886.4 884.9 884.2 890.6 887.8 882.6 885.9 891.8 889.7 890.4 890.9 882.6 DAY 8 4 24 18 14 1 30 1 13 20 6 28 1983 880.8 885.5 885.3 887.9 887.8 887.6 882.4 884.7 888.8 889.1 891.6 889.3 880.8 DAY 24 17 5 23 3 7 27 28 8 4 12 12 1984 890.4 885.7 884.8 887.4 885.2 884.6 886.9 885.2 889.4 889.5 888.2 890.1 884.6 DAY 14 8 12 9 28 20 15 15 8 18 12 14 1985 887.2 879.2 885.2 887.2 888.2 884.9 882.4 885.6 885.8 887.8 890.8 880.3 879.2 DAY 2 26 24 24 4 19 19 5 6 10 26 19 1986 882.2 884.6 887.4 885.3 883.5 882.1 885.4 885.8 890.0 890.5 886.2 882.0 882.0 DAY 19 6 9 11 10 17 25 15 6 1 7 30 1987 885.2 882.2 878.6 880.0 884.1 885.6 882.2 883.0 886.5 889.8 886.0 885.5 878.6 DAY 2 10 14 19 22 18 8 18 5 4 7 13 1988 885.2 884.5 880.2 884.0 882.3 880.3 882.1 881.7 886.5 886.0 886.1 873.7 873.7 DAY 31 2 4 23 28 15 15 29 4 30 28 27 1989 883.3 887.2 878.4 887.5 885.5 882.1 883.2 880.9 884.6 886.2 888.1 886.6 878.4 DAY 17 1 29 14 6 10 6 1 12 2 24 6 1990 885.2 880.7 886.5 881.0 879.3 881.2 882.8 883.2 885.1 888.4 889.2 885.6 879.3 DAY 23 15 24 15 12 26 27 7 5 31 8 25 1991 884.9 884.6 881.5 880.8 881.0 880.0 878.8 883.0 885.2 890.6 889.4 883.0 878.8 DAY 3 4 6 4 22 11 7 11 7 4 4 1 1992 883.0 882.6 879.3 884.3 884.1 882.2 883.6 885.7 885.6 887.7 884.9 886.8 879.3 DAY 30 5 30 22 9 27 9 1 17 24 25 27 1993 881.0 886.1 882.0 881.9 887.0 884.2 884.5 883.4 884.3 887.5 883.9 888.2 881.0 DAY 8 21 21 20 13 16 24 12 3 1 10 4 1994 882.0 881.1 881.5 883.1 882.5 882.3 881.4 882.3 889.1 889.0 883.9 882.0 881.1 DAY 16 1 7 2 1 16 20 1 2 14 17 4 1995 887.5 883.0 880.9 885.0 886.2 880.9 880.7 882.3 884.6 888.8 883.7 888.8 880.7 DAY 1 8 25 19 7 30 16 22 19 4 25 25 1996 885.9 880.7 884.3 882.6 885.4 883.4 884.4 882.6 882.5 885.0 891.8 886.5 880.7 DAY 6 5 25 18 29 1 6 8 8 27 28 24 1997 882.9 884.5 879.1 880.2 879.9 883.0 881.4 881.7 883.4 888.2 890.7 883.6 879.1 DAY 31 22 25 9 4 30 11 5 2 6 5 9 1998 877.9 878.4 879.9 882.1 882.4 886.2 877.7 886.3 885.8 885.5 888.5 890.0 877.7 DAY 13 13 18 21 21 24 5 23 4 1 1 17 1999 884.5 878.5 883.2 883.8 884.4 877.8 883.2 884.9 884.1 889.1 886.8 887.8 877.8 DAY 9 20 21 8 20 25 22 14 15 18 25 15 2000 880.9 885.3 883.2 884.0 882.6 883.8 883.3 881.6 882.7 891.2 891.1 886.0 880.9 DAY 21 6 24 21 26 8 8 3 1 10 6 15 2001 891.5 872.8 881.5 881.7 879.9 878.9 882.2 882.2 885.6 887.4 882.8 886.0 872.8 DAY 4 21 24 12 9 6 10 30 8 6 17 5 2002 885.3 882.9 880.2 876.4 884.4 879.0 881.2 881.2 886.9 887.7 887.0 880.8 876.4 DAY 8 25 28 3 29 20 24 17 10 21 12 21 2003 879.7 878.6 878.4 884.9 885.8 882.9 880.7 886.0 884.7 885.8 887.8 885.1 878.4 DAY 28 20 26 5 30 30 8 26 6 27 20 6 2004 880.1 876.8 884.3 881.5 880.3 881.9 885.5 879.6 885.9 888.9 879.9 886.5 876.8 DAY 23 15 30 17 15 17 10 12 10 3 23 15 2005 877.9 882.4 882.3 884.8 880.9 877.8 879.5 882.7 885.9 885.8 890.3 886.1 877.8 DAY 23 1 24 27 3 20 6 7 4 20 30 26 1977-2005 877.9 872.8 878.4 876.4 879.3 877.8 877.7 879.6 882.5 885.0 879.9 873.7 872.8 YEAR-DAY 98-13 1-21 89-29 2- 3 90-12 99-25 98- 5 4-12 96- 8 96-27 4-23 88-27 1-21 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 118 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QNH PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1023.7 ****** 1018.9 1014.2 1012.3 1015.5 1020.5 1022.6 1022.2 1022.0 ****** 1978 1021.9 1021.6 1018.6 1014.8 1017.3 1014.6 1015.6 1015.1 1017.9 1023.4 1024.7 1020.0 1018.8 1979 1022.4 1018.8 1018.7 1018.4 1020.2 1017.3 1014.8 1016.8 1021.5 1021.9 1025.0 1020.5 1019.7 1980 1020.5 1021.2 1018.4 1016.0 1018.2 1015.5 1014.5 1015.7 1018.8 1021.6 1022.5 1021.2 1018.7 1981 1020.1 1018.9 1016.7 1017.1 1018.1 1017.0 1014.9 1016.3 1021.4 1024.8 1021.2 1021.6 1019.0 1982 1020.1 1019.0 1018.2 1018.2 1021.2 1016.8 1013.9 1015.6 1021.2 1022.5 1024.3 1022.9 1019.5 1983 1021.3 1019.1 1019.3 1018.3 1017.4 1016.8 1013.4 1014.5 1018.7 1023.0 1023.9 1023.9 1019.1 1984 1021.4 1025.9 1018.4 1016.7 1017.2 1016.2 1014.4 1013.6 1020.5 1024.5 1023.0 1026.6 1019.9 1985 1021.1 1014.0 1022.8 1017.0 1018.0 1014.6 1011.4 1014.4 1015.2 1019.0 1020.1 1017.9 1017.1 1986 1017.1 1015.3 1017.8 1016.3 1014.1 1010.6 1013.1 1014.7 1017.8 1019.9 1019.1 1017.3 1016.1 1987 1018.1 1017.3 1012.1 1015.2 1014.9 1013.2 1012.4 1012.5 1016.6 1022.3 1021.1 1017.8 1016.1 1988 1017.3 1016.8 1012.2 1015.3 1014.4 1010.1 1009.9 1011.6 1016.0 1019.6 1018.1 1015.7 1014.8 1989 1017.2 1020.1 1013.6 1016.7 1015.6 1011.8 1012.1 1012.2 1014.1 1018.9 1018.9 1016.9 1015.7 1990 1018.2 1015.1 1018.3 1013.3 1013.9 1010.8 1011.1 1012.3 1013.8 1019.1 1019.9 1019.2 1015.4 1991 1017.7 1017.7 1015.5 1014.6 1012.3 1012.4 1009.8 1011.4 1016.2 1019.5 1020.7 1015.5 1015.3 1992 1016.5 1012.7 1015.6 1013.6 1015.5 1011.0 1011.1 1014.6 1016.9 1018.1 1018.6 1017.2 1015.1 1993 1017.9 1017.6 1015.7 1013.4 1014.1 1012.3 1012.3 1013.8 1014.7 1022.2 1019.9 1020.2 1016.2 1994 1017.1 1015.5 1015.2 1015.6 1014.2 1010.6 1009.1 1010.8 1019.1 1021.0 1016.2 1018.3 1015.2 1995 1018.6 1016.5 1015.3 1013.3 1015.6 1011.2 1008.5 1011.0 1014.1 1019.7 1017.0 1019.7 1015.0 1996 1019.3 1016.1 1014.2 1015.6 1015.0 1012.3 1012.6 1012.8 1012.4 1018.3 1022.9 1019.2 1015.9 1997 1015.7 1017.3 1012.6 1012.0 1015.4 1011.4 1008.8 1011.3 1015.7 1017.3 1020.0 1017.0 1014.5 1998 1015.4 1016.3 1013.6 1013.9 1015.2 1014.2 1010.5 1013.5 1014.9 1019.5 1019.8 1021.2 1015.7 1999 1018.3 1014.2 1014.6 1015.3 1014.4 1011.1 1010.4 1012.0 1014.2 1017.7 1018.8 1021.1 1015.2 2000 1015.5 1016.6 1014.5 1013.3 1012.3 1011.7 1012.0 1012.4 1014.3 1019.7 1021.8 1018.2 1015.2 2001 1020.1 1015.5 1014.9 1013.8 1011.7 1010.9 1010.9 1012.8 1015.0 1018.3 1017.8 1019.0 1015.1 2002 1017.9 1017.2 1014.5 1012.0 1013.7 1010.9 1012.2 1010.6 1015.8 1017.8 1020.2 1018.1 1015.1 2003 1017.3 1013.4 1014.7 1015.6 1016.2 1011.9 1009.1 1013.3 1015.2 1016.4 1020.0 1019.9 1015.2 2004 1013.6 1014.7 1018.1 1014.1 1012.0 1011.8 1012.1 1011.0 1016.8 1020.5 1017.2 1017.8 1015.0 2005 1015.9 1015.5 1013.0 1016.5 1014.7 1011.7 1010.9 1012.1 1014.3 1019.6 1020.5 1020.4 1015.4 MEAN 1018.3 1017.1 1016.2 1015.2 1015.6 1012.9 1011.9 1013.2 1016.7 1020.3 1020.5 1019.5 1016.5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 119 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QNH PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1037.8 ****** 1023.9 1019.4 1015.9 1020.8 1029.3 1033.0 1029.9 1031.6 ****** DAY ** ** 9 ** 28 9 21 23 30 23 26 18 1978 1031.9 1034.3 1027.9 1023.0 1026.7 1025.1 1021.9 1020.1 1026.6 1032.1 1032.9 1034.5 1034.5 DAY 13 5 19 13 2 8 7 21 26 10 5 23 1979 1035.7 1026.5 1028.6 1030.7 1026.7 1027.5 1020.0 1023.2 1026.6 1030.7 1034.0 1029.6 1035.7 DAY 18 27 5 27 27 10 20 29 23 9 10 22 1980 1028.6 1028.9 1027.1 1026.1 1027.5 1022.7 1021.3 1026.3 1026.2 1026.3 1030.8 1029.6 1030.8 DAY 31 2 27 1 16 11 11 30 25 9 2 20 1981 1030.0 1025.3 1027.8 1025.6 1029.2 1024.0 1020.6 1020.9 1027.8 1031.7 1029.1 1030.9 1031.7 DAY 8 27 8 19 21 10 29 3 27 28 15 1 1982 1030.5 1026.0 1026.3 1029.0 1031.2 1023.0 1022.0 1020.9 1027.2 1033.5 1030.9 1031.0 1033.5 DAY 21 10 5 4 9 6 7 15 20 25 18 9 1983 1034.8 1027.5 1026.8 1025.7 1024.8 1023.1 1020.3 1021.3 1025.2 1030.1 1033.8 1033.2 1034.8 DAY 7 10 14 29 18 1 1 17 27 28 26 3 1984 1031.6 1036.0 1027.5 1024.7 1023.5 1022.5 1020.3 1018.7 1025.9 1034.0 1033.0 1036.1 1036.1 DAY 4 18 4 4 17 15 3 30 30 21 30 18 1985 1030.1 1024.0 1036.3 1031.6 1027.2 1020.0 1015.9 1018.9 1024.0 1028.3 1028.0 1027.5 1036.3 DAY 14 24 5 16 12 9 16 30 22 31 17 14 1986 1027.1 1021.5 1024.1 1024.6 1022.9 1017.4 1016.0 1018.8 1021.6 1028.1 1028.9 1029.8 1029.8 DAY 28 22 27 4 18 2 3 17 21 14 15 6 1987 1029.6 1024.9 1024.5 1023.3 1021.0 1017.2 1018.1 1019.2 1022.8 1029.1 1033.3 1030.8 1033.3 DAY 20 1 22 30 13 6 10 5 23 16 30 1 1988 1026.5 1028.3 1021.8 1027.8 1023.7 1015.9 1013.4 1018.3 1023.0 1028.0 1028.6 1023.3 1028.6 DAY 10 6 17 8 4 7 30 21 21 28 5 21 1989 1028.3 1027.7 1020.0 1021.0 1020.8 1015.8 1017.0 1018.7 1024.0 1027.0 1026.1 1022.2 1028.3 DAY 21 3 8 9 20 1 19 19 23 23 7 18 1990 1026.9 1025.1 1029.1 1020.2 1022.1 1016.1 1015.2 1016.1 1019.4 1031.3 1029.1 1027.3 1031.3 DAY 26 7 9 23 15 6 16 2 27 15 22 28 1991 1025.9 1026.0 1022.7 1021.6 1019.1 1019.3 1016.6 1015.4 1022.8 1024.3 1026.0 1023.5 1026.0 DAY 11 15 12 28 4 17 11 27 15 13 27 17 1992 1028.0 1021.2 1025.3 1018.7 1023.6 1016.7 1016.6 1021.5 1022.6 1025.5 1029.5 1024.0 1029.5 DAY 9 16 12 30 2 6 7 31 29 29 3 2 1993 1030.6 1028.3 1024.9 1020.1 1023.7 1023.9 1018.1 1018.6 1023.0 1027.3 1028.5 1027.1 1030.6 DAY 6 9 16 23 9 22 27 28 22 20 21 6 1994 1029.5 1027.5 1021.6 1028.0 1022.1 1015.0 1013.7 1015.1 1025.1 1026.5 1023.9 1026.8 1029.5 DAY 9 18 24 5 18 8 13 6 22 23 2 7 1995 1029.3 1024.5 1025.0 1019.0 1021.5 1016.7 1012.7 1017.0 1021.1 1031.6 1027.9 1028.3 1031.6 DAY 7 12 3 7 26 1 23 24 27 17 15 10 1996 1029.7 1023.2 1019.1 1025.1 1021.0 1018.6 1019.7 1022.1 1019.8 1027.2 1033.8 1027.3 1033.8 DAY 9 13 28 4 26 11 3 29 30 2 18 7 1997 1025.5 1024.1 1027.6 1019.7 1021.2 1015.3 1015.7 1015.7 1021.6 1024.8 1032.7 1026.0 1032.7 DAY 23 7 11 13 15 4 19 21 7 8 7 28 1998 1024.3 1030.2 1024.6 1023.8 1022.7 1019.0 1016.9 1016.8 1021.3 1030.5 1028.9 1030.2 1030.5 DAY 22 22 26 12 8 5 19 9 12 9 20 29 1999 1031.3 1023.9 1021.7 1022.3 1019.2 1020.0 1014.8 1018.1 1020.3 1023.8 1029.8 1030.1 1031.3 DAY 2 11 1 22 23 16 18 20 23 26 30 24 2000 1024.1 1026.6 1022.1 1019.6 1017.8 1018.4 1018.4 1017.7 1020.0 1025.1 1030.6 1026.5 1030.6 DAY 24 29 26 2 4 13 30 8 25 15 17 4 2001 1025.9 1029.9 1026.0 1026.0 1019.8 1018.2 1015.1 1018.2 1021.1 1027.5 1024.6 1025.3 1029.9 DAY 26 9 1 1 18 1 28 5 19 10 2 9 2002 1026.7 1027.1 1030.6 1020.3 1020.5 1018.4 1016.7 1016.2 1021.0 1022.6 1028.0 1031.2 1031.2 DAY 27 18 10 1 17 24 2 29 29 10 17 3 2003 1023.9 1024.3 1026.5 1023.7 1027.1 1020.6 1016.9 1016.4 1023.7 1023.7 1029.1 1032.3 1032.3 DAY 10 12 2 30 1 6 3 30 26 15 25 11 2004 1021.0 1019.1 1031.3 1021.9 1020.2 1019.9 1017.7 1016.1 1021.9 1027.5 1023.5 1029.3 1031.3 DAY 12 27 8 11 21 13 7 17 29 14 30 3 2005 1025.0 1024.7 1019.4 1028.5 1020.7 1017.2 1014.2 1017.0 1018.7 1028.1 1025.8 1030.0 1030.0 DAY 9 16 26 5 18 7 8 29 9 23 15 28 1977-2005 1035.7 1036.0 1037.8 1031.6 1031.2 1027.5 1022.0 1026.3 1029.3 1034.0 1034.0 1036.1 1037.8 YEAR-DAY 79-18 84-18 77- 9 85-16 82- 9 79-10 82- 7 80-30 77-30 84-21 79-10 84-18 77- 9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 120 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QNH PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1016.4 ****** 1013.6 1009.6 1007.7 1007.4 1015.1 1014.4 1013.2 1012.9 ****** DAY ** ** 4 ** 4 21 27 17 11 17 17 22 1978 1012.0 1011.8 1006.4 1002.7 1008.0 1000.8 1004.3 1010.9 1012.0 1016.0 1017.4 1008.7 1000.8 DAY 21 17 13 25 31 21 1 5 1 29 7 16 1979 1011.9 1007.8 1005.6 1011.4 1014.0 1010.4 1006.9 1010.4 1014.3 1014.4 1007.8 1010.0 1005.6 DAY 6 11 27 12 17 23 6 14 5 4 29 1 1980 1010.0 1008.4 1002.4 1007.8 1013.0 1008.9 1010.4 1009.4 1013.2 1013.0 1014.9 1010.7 1002.4 DAY 6 18 2 26 23 16 2 19 21 4 9 11 1981 1009.0 1010.6 1004.4 1004.1 1007.6 1009.6 1008.9 1011.4 1015.1 1017.3 1011.3 1013.2 1004.1 DAY 3 1 13 30 1 4 1 13 12 16 5 18 1982 1011.8 1010.2 1008.6 1007.8 1014.9 1011.8 1006.0 1009.7 1016.2 1013.9 1014.7 1015.2 1006.0 DAY 8 4 24 18 14 1 30 1 13 20 6 28 1983 1004.0 1009.2 1009.0 1011.9 1011.8 1011.6 1005.8 1008.3 1012.9 1013.2 1016.0 1013.4 1004.0 DAY 24 17 5 23 3 7 27 28 8 4 12 12 1984 1014.7 1009.4 1008.4 1011.3 1008.9 1008.2 1010.8 1008.9 1013.6 1013.7 1012.2 1014.3 1008.2 DAY 14 8 12 9 28 20 15 15 8 18 12 14 1985 1011.1 1002.2 1008.9 1011.1 1012.2 1008.6 1005.8 1009.3 1009.6 1011.8 1015.1 1003.4 1002.2 DAY 2 26 24 24 4 19 19 5 6 10 26 19 1986 1005.6 1008.2 1011.3 1009.0 1007.0 1005.4 1009.1 1009.6 1014.2 1014.8 1010.0 1005.3 1005.3 DAY 19 6 9 11 10 17 25 15 6 1 7 30 1987 1008.9 1005.6 1001.5 1003.1 1007.7 1009.3 1005.6 1006.4 1010.3 1014.0 1009.8 1009.2 1001.5 DAY 2 10 14 19 22 18 8 18 5 4 7 13 1988 1008.9 1008.1 1003.3 1007.6 1005.7 1003.4 1005.4 1005.0 1010.3 1009.8 1009.9 996.1 996.1 DAY 31 2 4 23 28 15 15 29 4 30 28 27 1989 1006.8 1011.1 1001.3 1011.4 1009.2 1005.4 1006.7 1004.1 1008.2 1010.0 1012.1 1010.4 1001.3 DAY 17 1 29 14 6 10 6 1 12 2 24 6 1990 1008.9 1003.9 1010.3 1004.2 1002.3 1004.4 1006.2 1006.7 1008.8 1012.4 1013.3 1009.3 1002.3 DAY 23 15 24 15 12 26 27 7 5 31 8 25 1991 1008.6 1008.2 1004.8 1004.0 1004.2 1003.1 1001.8 1006.4 1008.9 1014.9 1013.6 1006.4 1001.8 DAY 3 4 6 4 22 11 7 11 7 4 4 1 1992 1006.4 1006.0 1002.3 1007.9 1007.7 1005.6 1007.1 1009.4 1009.3 1011.7 1008.6 1010.7 1002.3 DAY 30 5 30 22 9 27 9 1 17 24 25 27 1993 1004.2 1009.9 1005.3 1005.2 1010.9 1007.8 1008.1 1006.9 1007.9 1011.4 1007.4 1012.2 1004.2 DAY 8 21 21 20 13 16 24 12 3 1 10 4 1994 1005.3 1004.3 1004.8 1006.6 1005.9 1005.7 1004.7 1005.7 1013.2 1013.1 1007.4 1005.3 1004.3 DAY 16 1 7 2 1 16 20 1 2 14 17 4 1995 1011.4 1006.4 1004.1 1008.7 1010.0 1004.1 1003.9 1005.7 1008.2 1012.9 1007.2 1012.9 1003.9 DAY 1 8 25 19 7 30 16 22 19 4 25 25 1996 1009.7 1003.9 1007.9 1006.0 1009.1 1006.9 1008.0 1006.0 1005.9 1008.7 1016.2 1010.3 1003.9 DAY 6 5 25 18 29 1 6 8 8 27 28 24 1997 1006.3 1008.1 1002.1 1003.3 1003.0 1006.4 1004.7 1005.0 1006.9 1012.2 1015.0 1007.1 1002.1 DAY 31 22 25 9 4 30 11 5 2 6 5 9 1998 1000.8 1001.3 1003.0 1005.4 1005.8 1010.0 1000.5 1010.1 1009.6 1009.2 1012.6 1014.2 1000.5 DAY 13 13 18 21 21 24 5 23 4 1 1 17 1999 1008.1 1001.4 1006.7 1007.3 1008.0 1000.7 1006.7 1008.6 1007.7 1013.2 1010.7 1011.8 1000.7 DAY 9 20 21 8 20 25 22 14 15 18 25 15 2000 1004.1 1009.0 1006.7 1007.6 1006.0 1007.3 1006.8 1004.9 1006.1 1015.6 1015.4 1009.8 1004.1 DAY 21 6 24 21 26 8 8 3 1 10 6 15 2001 1015.9 995.1 1004.8 1005.0 1003.0 1001.9 1005.6 1005.6 1009.3 1011.3 1006.2 1009.8 995.1 DAY 4 21 24 12 9 6 10 30 8 6 17 5 2002 1009.0 1006.3 1003.3 999.1 1008.0 1002.0 1004.4 1004.4 1010.8 1011.7 1010.9 1004.0 999.1 DAY 8 25 28 3 29 20 24 17 10 21 12 21 2003 1002.8 1001.5 1001.3 1008.6 1009.6 1006.3 1003.9 1009.8 1008.3 1009.6 1011.8 1008.8 1001.3 DAY 28 20 26 5 30 30 8 26 6 27 20 6 2004 1003.2 999.5 1007.9 1004.8 1003.4 1005.2 1009.2 1002.7 1009.7 1013.0 1003.0 1010.3 999.5 DAY 23 15 30 17 15 17 10 12 10 3 23 15 2005 1000.8 1005.8 1005.7 1008.4 1004.1 1000.7 1002.6 1006.1 1009.7 1009.6 1014.6 1009.9 1000.7 DAY 23 1 24 27 3 20 6 7 4 20 30 26 1977-2005 1000.8 995.1 1001.3 999.1 1002.3 1000.7 1000.5 1002.7 1005.9 1008.7 1003.0 996.1 995.1 YEAR-DAY 98-13 1-21 89-29 2- 3 90-12 99-25 98- 5 4-12 96- 8 96-27 4-23 88-27 1-21 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 121 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFF PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1014.1 1006.3 1004.0 1008.2 1015.3 1020.7 1022.7 1024.2 ****** 1978 1024.8 1024.6 1019.0 1012.0 1013.6 1008.4 1007.9 1008.1 1012.2 1021.1 1026.5 1021.0 1016.6 1979 1026.0 1020.9 1019.3 1015.3 1016.5 1010.5 1006.3 1010.2 1016.1 1018.5 1026.0 1022.3 1017.3 1980 1024.3 1025.8 1019.0 1012.3 1013.4 1008.4 1006.1 1008.4 1013.7 1019.9 1022.1 1023.2 1016.4 1981 1022.1 1020.6 1016.6 1015.1 1013.7 1010.7 1006.9 1008.8 1016.2 1022.8 1021.2 1023.8 1016.5 1982 1024.6 1023.6 1019.5 1014.5 1016.3 1009.6 1005.7 1008.6 1016.5 1020.7 1026.0 1026.8 1017.7 1983 1024.6 1021.1 1020.4 1015.9 1011.5 1009.4 1004.5 1006.5 1013.0 1021.3 1023.1 1026.7 1016.5 1984 1024.3 1030.2 1018.1 1013.9 1013.1 1009.1 1005.7 1005.3 1015.2 1022.9 1022.4 1031.4 1017.6 1985 1024.1 1015.3 1024.5 1013.8 1012.3 1006.5 ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1018.9 1021.6 1022.0 ****** 1987 1021.7 1020.9 1014.2 1015.3 1011.3 1007.4 1006.4 1006.1 1013.4 1023.9 1023.3 1021.0 1015.4 1988 1022.9 1021.6 1014.0 1014.7 1011.6 1004.1 1003.5 1006.1 1012.5 1019.1 1019.5 1018.8 1014.1 1989 1024.3 1027.5 1015.7 1015.8 1012.9 1005.9 1005.3 1006.0 1010.3 1017.8 1021.2 1020.1 1015.2 1990 1023.8 1019.8 1021.1 1013.1 1010.6 1004.8 1004.7 1006.3 1009.3 1018.9 1021.6 1024.7 1014.9 1991 1023.6 1022.6 1017.9 1013.5 1010.1 1007.5 1003.2 1005.5 1012.7 1019.1 1023.3 1019.4 1014.9 1992 1022.3 1017.1 1019.6 1013.7 1014.4 1006.1 1004.7 1010.2 1014.0 1018.1 1020.1 1021.1 1015.1 1993 1024.4 1022.4 1018.6 1012.6 1011.3 1007.4 1006.4 1008.2 1010.8 1022.8 1023.2 1024.7 1016.1 1994 1021.7 1020.8 1017.3 1015.1 1010.9 1006.0 1002.9 1004.6 1016.9 1021.4 1017.2 1023.2 1014.8 1995 1022.7 1020.7 1017.8 1012.4 1012.3 1006.0 1001.7 1004.4 1010.5 1019.9 1018.8 1024.8 1014.3 1996 1024.9 1020.8 1017.1 1015.6 1011.7 1007.2 1005.7 1006.0 1006.7 1017.0 1025.1 1021.8 1015.0 1997 1019.0 1022.3 1014.7 1010.0 1011.4 1004.7 1000.9 1003.8 1010.9 1014.9 1021.2 1019.7 1012.8 1998 1020.1 1020.4 1014.9 1011.5 1012.4 1008.4 1004.0 1007.6 1011.3 1018.8 1020.8 1024.0 1014.5 1999 1023.0 1016.6 1016.9 1015.1 1011.7 1005.4 1004.6 1005.6 1010.3 1016.7 1021.4 1024.6 1014.3 2000 1020.2 1021.3 1016.9 1011.0 1008.2 1006.3 1005.6 1006.2 1008.6 1018.1 1023.7 1020.6 1013.9 2001 1024.3 1018.3 1015.5 1011.0 1006.8 1006.0 1003.5 1005.6 1010.0 1016.2 1018.0 1020.7 1013.0 2002 1021.0 1020.2 1014.9 1010.5 1010.3 1004.7 1004.7 1003.0 1010.2 1014.5 1020.8 1022.9 1013.1 2003 1020.8 1015.9 1016.3 1014.2 1013.0 1006.1 1001.2 1006.2 1010.5 1013.3 1021.4 1022.9 1013.5 2004 1016.2 1016.4 1018.7 1013.0 1007.5 1004.9 1005.1 1003.5 1011.7 1019.2 1017.0 1021.6 1012.9 2005 1019.7 1019.3 1013.5 1014.7 1010.6 1005.0 1002.3 1005.1 1008.6 1017.1 1022.0 1022.6 1013.4 MEAN 1022.6 1021.0 1017.5 1013.5 1011.9 1006.9 1004.6 1006.4 1012.1 1019.1 1021.8 1022.9 1015.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 122 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFF PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1019.3 1013.5 1008.6 1015.3 1025.1 1036.1 1030.7 1035.7 ****** DAY ** ** ** ** 29 9 20 30 30 23 26 13 1978 1037.7 1039.5 1029.7 1023.0 1027.3 1020.4 1016.4 1013.5 1021.8 1029.8 1035.9 1039.8 1039.8 DAY 13 5 19 13 2 8 7 21 26 10 5 23 1979 1040.3 1029.9 1033.6 1031.4 1023.0 1022.9 1011.5 1017.9 1022.8 1028.7 1035.5 1034.5 1040.3 DAY 18 27 6 27 24 10 20 28 23 9 19 22 1980 1034.2 1036.8 1027.8 1024.8 1025.7 1017.8 1013.5 1021.3 1022.8 1026.0 1030.6 1032.5 1036.8 DAY 31 2 27 1 16 11 11 30 25 21 3 16 1981 1033.4 1029.0 1028.7 1024.4 1026.7 1018.7 1014.1 1014.0 1025.3 1031.8 1030.1 1031.9 1033.4 DAY 8 27 8 3 21 9 23 3 23 28 25 1 1982 1038.2 1035.4 1029.6 1028.5 1028.7 1016.4 1016.6 1014.4 1023.4 1036.1 1034.5 1038.9 1038.9 DAY 21 11 5 4 9 6 7 15 20 25 18 9 1983 1040.5 1030.0 1029.5 1023.2 1019.6 1017.2 1012.6 1014.1 1021.3 1028.7 1036.7 1034.9 1040.5 DAY 8 10 18 29 31 1 1 17 27 28 26 25 1984 1033.7 1041.1 1029.2 1026.1 1019.5 1017.8 1012.8 1011.8 1022.5 1035.1 1036.2 1041.7 1041.7 DAY 4 18 9 4 17 15 3 29 30 21 30 18 1985 1032.4 1029.3 1042.4 1032.1 1022.6 1014.1 ****** ****** ****** ****** ****** ****** ****** DAY 14 24 5 16 12 9 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1028.5 1034.0 1039.4 ****** DAY ** ** ** ** ** ** ** ** ** 14 15 10 1987 1034.4 1030.7 1030.4 1025.5 1017.9 1014.1 1013.7 1014.3 1022.5 1033.4 1040.1 1038.6 1040.1 DAY 20 6 22 6 13 5 10 5 23 28 30 1 1988 1033.3 1037.9 1025.4 1031.1 1024.8 1010.5 1011.2 1013.8 1024.0 1028.6 1028.7 1030.2 1037.9 DAY 10 7 25 8 4 7 27 21 21 16 5 29 1989 1036.2 1038.7 1023.9 1022.5 1021.4 1013.7 1011.2 1015.4 1024.2 1029.0 1030.1 1026.8 1038.7 DAY 28 3 12 9 1 1 19 19 23 24 8 18 1990 1033.9 1033.2 1035.5 1022.5 1021.1 1013.1 1011.0 1011.1 1016.4 1034.5 1030.6 1039.4 1039.4 DAY 26 7 17 3 15 6 31 2 27 15 23 30 1991 1032.9 1035.2 1029.0 1023.5 1019.2 1015.2 1012.2 1011.0 1021.3 1024.7 1029.8 1029.8 1035.2 DAY 12 13 12 14 4 17 11 27 27 12 27 17 1992 1036.2 1028.5 1033.8 1020.5 1026.6 1013.8 1012.9 1020.5 1022.0 1025.7 1031.7 1028.7 1036.2 DAY 9 16 12 30 2 6 12 31 29 29 17 2 1993 1038.2 1033.8 1030.5 1023.0 1025.0 1022.9 1012.4 1013.5 1021.0 1029.5 1033.2 1034.0 1038.2 DAY 6 9 16 23 9 22 27 24 22 7 30 6 1994 1035.6 1034.3 1025.1 1033.3 1022.4 1010.7 1009.2 1011.0 1023.7 1027.6 1024.2 1034.8 1035.6 DAY 9 18 3 5 18 8 1 6 22 24 2 7 1995 1034.3 1028.4 1029.7 1021.0 1019.9 1013.4 1007.7 1011.4 1020.8 1034.4 1031.5 1035.0 1035.0 DAY 7 12 3 7 26 23 23 24 27 17 15 10 1996 1038.0 1030.3 1024.0 1029.5 1019.9 1015.4 1014.0 1016.9 1015.4 1027.1 1037.8 1034.7 1038.0 DAY 10 3 16 4 26 11 3 29 24 18 18 7 1997 1029.8 1031.9 1032.6 1020.8 1019.2 1011.4 1008.6 1009.4 1017.7 1023.3 1035.0 1031.5 1035.0 DAY 19 8 11 13 15 4 19 28 15 9 7 28 1998 1029.5 1035.7 1026.4 1021.3 1023.7 1013.7 1012.5 1012.2 1019.5 1033.2 1030.5 1033.5 1035.7 DAY 22 23 26 1 3 5 15 25 12 9 20 29 1999 1041.0 1027.3 1027.1 1023.2 1018.9 1015.6 1011.2 1011.9 1019.3 1026.7 1035.9 1034.0 1041.0 DAY 2 11 18 22 11 16 27 19 28 26 30 1 2000 1030.5 1031.5 1026.6 1020.7 1015.5 1018.7 1011.7 1012.9 1015.4 1025.6 1035.1 1028.3 1035.1 DAY 24 10 15 2 4 13 30 8 25 15 17 4 2001 1031.7 1033.7 1030.3 1026.2 1017.2 1014.0 1007.0 1011.5 1019.5 1027.7 1024.6 1028.6 1033.7 DAY 25 9 11 1 18 1 30 11 21 27 2 21 2002 1030.4 1033.1 1035.4 1020.3 1018.2 1013.4 1010.9 1009.9 1017.4 1019.2 1030.7 1037.8 1037.8 DAY 27 18 10 1 17 24 28 31 29 23 18 3 2003 1028.8 1028.7 1033.0 1025.3 1029.3 1018.7 1010.3 1010.4 1022.0 1021.8 1032.8 1040.2 1040.2 DAY 22 12 2 30 1 6 3 30 26 15 25 12 2004 1025.4 1021.9 1033.7 1023.2 1017.5 1015.8 1012.1 1009.3 1018.3 1026.2 1027.5 1035.0 1035.0 DAY 1 25 8 5 21 13 7 30 29 14 30 3 2005 1028.9 1030.0 1024.1 1032.8 1016.9 1013.6 1007.7 1011.0 1013.0 1028.4 1028.9 1036.1 1036.1 DAY 9 16 26 5 11 8 30 29 9 23 25 30 1977-2005 1041.0 1041.1 1042.4 1033.3 1029.3 1022.9 1016.6 1021.3 1025.3 1036.1 1040.1 1041.7 1042.4 YEAR-DAY 99- 2 84-18 85- 5 94- 5 3- 1 79-10 82- 7 80-30 81-23 77-23 87-30 84-18 85- 5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 123 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFF PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** 1007.7 1001.0 998.8 999.9 1009.3 1010.3 1012.7 1013.8 ****** DAY ** ** ** ** 4 21 8 17 15 5 17 22 1978 1003.9 1012.7 1005.0 997.3 1003.4 994.2 994.1 1002.9 1006.1 1011.7 1014.6 1007.1 994.1 DAY 21 21 12 25 31 21 1 13 1 29 1 16 1979 1010.7 1007.5 1000.9 1006.3 1009.4 1002.8 997.5 1002.9 1008.2 1009.2 1003.5 1009.8 997.5 DAY 6 11 27 12 16 23 6 14 5 4 29 1 1980 1008.6 1010.0 1002.3 1001.8 1005.3 1000.6 1002.3 1001.5 1007.6 1006.3 1012.1 1009.6 1000.6 DAY 6 18 2 26 23 16 2 19 6 4 9 12 1981 1010.7 1007.5 1002.4 998.7 1001.4 1001.7 1000.0 1003.0 1008.3 1014.2 1006.8 1012.8 998.7 DAY 3 9 12 30 1 4 1 13 16 16 5 18 1982 1009.2 1010.8 1006.7 1001.9 1008.7 1004.1 996.6 1000.9 1010.1 1010.7 1014.2 1016.9 996.6 DAY 9 4 24 18 20 11 30 7 13 20 6 28 1983 1002.2 1009.8 1005.7 1007.5 1006.7 1003.3 996.0 1000.9 1006.3 1008.2 1014.2 1012.8 996.0 DAY 24 17 5 23 4 7 27 28 7 4 12 12 1984 1017.2 1011.1 1005.6 1006.8 1001.2 999.7 1001.4 999.6 1007.8 1007.7 1010.1 1015.9 999.6 DAY 8 8 12 16 28 20 15 15 8 18 13 14 1985 1013.0 1001.3 1007.7 1005.9 1006.2 1000.1 ****** ****** ****** ****** ****** ****** ****** DAY 2 26 24 24 31 19 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1012.7 1007.4 1007.1 ****** DAY ** ** ** ** ** ** ** ** ** 6 9 27 1987 1010.9 1006.6 1001.9 1000.3 1002.3 1002.2 997.7 998.7 1007.1 1012.8 1006.6 1008.9 997.7 DAY 2 10 19 19 22 18 8 18 22 4 7 13 1988 1011.0 1008.8 1003.4 1003.0 999.5 995.0 997.0 999.4 1004.5 1008.4 1011.2 995.9 995.0 DAY 31 1 9 23 28 15 15 29 9 30 28 27 1989 1010.9 1014.7 1001.6 1008.8 1004.3 998.5 998.1 997.0 1002.6 1007.0 1012.8 1013.7 997.0 DAY 17 23 29 28 31 23 6 1 12 1 15 6 1990 1011.3 1004.1 1010.8 1003.4 995.9 996.6 997.6 999.4 1003.0 1010.3 1011.8 1014.7 995.9 DAY 23 15 14 15 12 26 27 7 5 1 8 25 1991 1013.8 1009.5 1004.8 1000.9 1000.6 996.2 992.8 1000.2 1003.1 1013.3 1013.0 1005.7 992.8 DAY 30 4 6 4 22 11 7 5 8 4 4 1 1992 1012.1 1006.3 1001.1 1005.2 1004.7 999.1 999.5 1002.8 1005.3 1011.0 1004.8 1014.2 999.1 DAY 16 24 30 22 9 27 9 24 17 24 25 27 1993 1010.0 1011.9 1006.2 1001.0 1006.8 1000.6 1000.9 999.7 1001.7 1008.1 1005.4 1017.0 999.7 DAY 8 21 8 20 23 16 24 12 3 1 10 4 1994 1008.1 1004.9 1002.9 1006.3 1003.6 998.8 996.2 998.7 1008.3 1013.2 1006.8 1005.6 996.2 DAY 16 1 7 2 1 16 20 1 2 14 23 3 1995 1013.3 1007.1 1003.0 1006.3 1005.1 996.7 994.3 998.0 1003.9 1009.9 1004.4 1015.5 994.3 DAY 11 8 25 19 7 30 16 22 19 4 11 25 1996 1010.1 1009.4 1007.7 1002.6 1003.7 999.8 1001.0 998.4 998.7 1005.6 1016.7 1010.3 998.4 DAY 6 1 25 13 29 1 7 8 8 27 6 25 1997 1008.8 1009.0 1000.0 1000.6 997.2 999.2 996.2 996.4 999.0 1008.2 1011.1 1006.2 996.2 DAY 16 22 25 5 4 30 11 14 2 6 5 9 1998 1004.4 1005.2 999.8 1000.4 1000.1 1002.9 992.4 1002.9 1004.2 1004.8 1011.5 1014.6 992.4 DAY 13 8 18 21 21 24 5 23 5 1 1 17 1999 1007.9 1000.8 1006.0 1006.4 1004.2 994.0 999.7 1001.2 1001.9 1010.4 1010.8 1013.2 994.0 DAY 9 20 21 13 18 25 22 6 15 18 25 15 2000 1006.0 1013.7 1004.3 1002.1 998.7 1000.2 1000.0 997.1 998.4 1012.4 1015.0 1012.3 997.1 DAY 21 6 24 10 26 8 11 3 1 12 6 21 2001 1018.1 995.4 1001.6 1001.5 998.6 1000.0 996.2 997.6 1002.0 1007.9 1002.7 1008.8 995.4 DAY 4 21 24 12 29 26 10 30 8 6 17 20 2002 1007.5 1006.1 999.9 996.2 1002.0 995.0 996.7 995.6 1005.0 1009.1 1009.7 1002.8 995.0 DAY 7 26 28 3 29 20 24 17 10 21 12 21 2003 1006.2 1003.0 998.0 1003.3 1004.2 999.1 994.7 1002.1 1002.7 1005.1 1010.8 1009.1 994.7 DAY 28 20 26 6 30 29 7 6 6 26 1 6 2004 1005.3 994.1 1004.8 1000.2 997.8 997.3 1001.5 993.5 1003.3 1009.8 1000.7 1011.9 993.5 DAY 23 15 30 23 12 17 24 12 10 3 23 12 2005 1003.3 1005.1 1004.2 1004.6 999.2 991.8 992.1 996.8 1002.7 1005.3 1014.5 1009.6 991.8 DAY 23 1 10 29 3 20 6 7 4 20 8 17 1977-2005 1002.2 994.1 998.0 996.2 995.9 991.8 992.1 993.5 998.4 1004.8 1000.7 995.9 991.8 YEAR-DAY 83-24 4-15 3-26 2- 3 90-12 5-20 5- 6 4-12 0- 1 98- 1 4-23 88-27 5-20 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 124 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF COMPUTED QFF PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1023.5 ****** 1014.6 1006.7 1004.5 1008.7 1015.8 1021.4 1023.3 1025.0 ****** 1978 1026.3 1025.6 1020.1 1012.7 1014.0 1008.9 1008.4 1008.7 1012.8 1021.6 1027.2 1021.7 1017.3 1979 1026.6 1021.7 1020.1 1016.0 1017.1 1011.1 1006.8 1010.8 1016.6 1019.1 1026.9 1023.1 1018.0 1980 1025.3 1026.8 1019.7 1013.0 1013.9 1009.1 1006.8 1008.8 1014.3 1020.5 1022.8 1024.1 1017.1 1981 1023.0 1021.6 1017.1 1015.7 1014.3 1011.3 1007.4 1009.3 1016.8 1023.6 1022.1 1024.6 1017.2 1982 1022.1 ****** ****** ****** 1017.1 1010.3 1006.4 1009.2 1016.8 1022.9 1026.7 1027.9 ****** 1983 1025.6 1022.1 1021.3 1016.5 1012.1 1009.8 1004.8 1006.9 1013.6 1021.9 1024.1 1027.7 1017.2 1984 1025.2 1031.6 1018.8 1014.5 1013.8 1009.4 1006.3 1005.8 1015.8 1023.6 1023.2 1032.2 1018.3 1985 1025.0 1016.4 1025.5 1014.4 1013.0 1007.0 1003.8 1008.3 1010.3 1017.9 1020.6 1021.2 1015.3 1986 1021.8 1018.2 1021.3 1014.9 1009.7 1004.3 1005.6 1008.3 1013.1 1017.5 1020.5 1021.3 1014.7 1987 1020.6 1019.9 1013.1 1014.1 1010.0 1006.4 1005.1 1005.0 1012.0 1022.5 1022.0 1020.2 1014.2 1988 1022.0 1020.6 1013.0 1013.3 1010.3 1002.8 1002.1 1004.9 1011.2 1017.9 1018.4 1017.8 1012.9 1989 1023.4 1026.6 1014.6 1014.6 1011.6 1004.6 1003.9 1004.8 1009.1 1016.4 1019.9 1019.0 1014.0 1990 1022.7 1018.8 1020.0 1011.9 1009.4 1003.6 1003.3 1005.0 1007.9 1017.6 1020.4 1023.7 1013.7 1991 1022.4 1021.6 1016.7 1012.3 1008.9 1006.2 1002.0 1004.2 1011.3 1017.7 1022.1 1018.5 1013.7 1992 1021.3 1016.1 1018.5 1012.5 1013.0 1004.8 1003.3 1008.6 1012.7 1016.9 1018.9 1020.0 1013.9 1993 1023.5 1021.3 1017.5 1011.4 1010.0 1006.1 1005.0 1006.9 1009.4 1021.6 1022.0 1023.4 1014.8 1994 1020.6 1019.8 1016.1 1013.9 1009.7 1004.8 1001.7 1003.3 1015.6 1019.9 1015.9 1022.1 1013.6 1995 1021.7 1019.7 1016.7 1011.2 1011.3 1004.8 1000.5 1003.1 1009.3 1018.6 1017.7 1023.7 1013.2 1996 1023.9 1019.5 1016.0 1014.4 1010.4 1006.0 1005.0 1005.8 1006.5 1016.9 1025.0 1021.8 1014.3 1997 1019.0 1022.4 1014.6 1009.8 1011.2 1004.5 1000.6 1003.6 1010.8 1014.7 1021.1 1019.7 1012.7 1998 1020.0 1020.4 1014.7 1011.3 1011.0 1007.2 1002.7 1006.2 1009.9 1017.6 1019.6 1022.7 1013.6 1999 1021.9 1015.6 1015.8 1013.9 1010.3 1004.2 1003.3 1004.4 1009.1 1015.4 1020.2 1023.4 1013.1 2000 1019.2 1020.2 1015.9 1009.8 1007.0 1005.3 1004.5 1005.1 1008.5 1018.0 1023.6 1020.5 1013.1 2001 1024.3 1018.2 1015.5 1011.1 1006.4 1004.1 1003.5 1005.4 1009.9 1016.1 1017.9 1020.7 1012.8 2002 1021.0 1020.2 1014.7 1010.5 1010.0 1004.6 1004.7 1002.8 1010.1 1014.4 1020.7 1022.8 1013.0 2003 1020.9 1015.9 1016.4 1014.4 1013.0 1006.0 1001.2 1006.2 1010.4 1013.3 1021.4 1023.0 1013.5 2004 1016.1 1016.5 1018.8 1013.0 1007.5 1004.9 1005.1 1003.4 1011.7 1019.1 1017.0 1021.7 1012.9 2005 1019.7 1019.3 1013.5 1014.7 1010.6 1005.0 1002.3 1005.1 1008.6 1017.1 1022.0 1022.6 1013.4 MEAN 1022.3 1020.6 1017.5 1013.2 1011.4 1006.3 1004.2 1006.2 1011.7 1018.7 1021.5 1022.6 1014.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 125 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF COMPUTED QFF PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1040.1 ****** 1019.3 1012.6 1008.9 1015.6 1025.4 1036.9 1031.1 1036.8 ****** DAY ** ** 9 ** 28 9 20 30 30 23 26 13 1978 1038.7 1040.7 1030.4 1023.5 1028.0 1020.9 1016.9 1014.1 1022.3 1030.1 1036.5 1040.8 1040.8 DAY 13 5 19 13 2 8 7 21 26 10 5 23 1979 1041.4 1030.8 1034.5 1032.2 1023.8 1023.1 1011.8 1018.6 1023.4 1029.2 1036.3 1035.4 1041.4 DAY 18 27 5 27 24 10 20 28 23 9 19 22 1980 1035.3 1038.3 1028.3 1025.2 1026.1 1018.3 1013.8 1021.7 1023.1 1026.6 1031.2 1033.4 1038.3 DAY 31 2 27 1 16 11 11 30 25 21 3 16 1981 1034.3 1029.8 1029.2 1025.4 1027.0 1019.2 1014.4 1014.5 1025.9 1032.4 1030.7 1032.5 1034.3 DAY 8 27 8 2 21 9 23 3 23 28 25 1 1982 1029.2 ****** ****** ****** 1029.1 1016.9 1016.8 1015.0 1024.1 1036.9 1035.3 1040.2 ****** DAY 12 ** ** ** 9 6 7 15 20 25 18 9 1983 1041.7 1031.0 1030.4 1023.8 1019.6 1018.1 1013.0 1014.1 1021.7 1029.2 1037.6 1035.6 1041.7 DAY 8 10 18 29 31 1 1 17 27 28 26 18 1984 1034.5 1043.0 1029.8 1026.9 1020.0 1018.3 1013.1 1011.9 1023.1 1035.6 1037.0 1039.0 1043.0 DAY 4 18 9 4 17 15 3 30 30 21 30 19 1985 1033.1 1030.5 1043.6 1032.7 1023.0 1014.6 1008.7 1014.5 1019.7 1029.7 1029.2 1034.5 1043.6 DAY 14 24 5 16 12 9 16 30 22 31 17 8 1986 1036.7 1026.3 1029.2 1025.0 1020.8 1012.7 1010.0 1012.8 1017.0 1026.7 1032.7 1036.2 1036.7 DAY 28 13 16 4 18 3 22 31 21 14 15 11 1987 1033.0 1029.6 1029.1 1024.2 1016.4 1012.5 1012.2 1012.6 1021.0 1032.0 1038.9 1037.4 1038.9 DAY 20 6 22 6 6 6 10 5 23 28 30 1 1988 1032.1 1036.8 1024.1 1029.5 1023.1 1009.6 1007.6 1012.2 1019.3 1027.1 1026.9 1029.2 1036.8 DAY 10 7 25 8 4 7 27 21 21 16 5 29 1989 1036.0 1037.5 1022.6 1020.9 1020.3 1012.3 1009.5 1013.9 1022.7 1027.6 1029.0 1025.5 1037.5 DAY 28 3 12 9 1 1 19 19 23 24 8 18 1990 1033.0 1031.9 1034.2 1021.0 1019.8 1011.6 1009.3 1009.7 1015.2 1033.1 1029.2 1038.7 1038.7 DAY 26 7 17 3 15 6 31 29 27 15 16 30 1991 1031.7 1034.9 1027.8 1022.2 1017.7 1013.6 1010.7 1009.5 1019.7 1023.2 1029.0 1028.7 1034.9 DAY 12 13 12 14 4 17 11 27 27 13 24 17 1992 1035.2 1027.6 1032.6 1019.2 1025.2 1012.1 1011.8 1019.1 1020.4 1024.1 1030.1 1027.4 1035.2 DAY 9 16 12 30 2 6 12 31 29 29 17 2 1993 1036.9 1032.1 1029.4 1021.6 1023.5 1021.0 1010.7 1012.1 1019.1 1028.2 1032.1 1032.0 1036.9 DAY 6 9 16 23 9 22 27 24 22 7 30 6 1994 1034.3 1033.3 1023.8 1032.0 1020.8 1009.6 1007.7 1009.3 1022.3 1025.9 1022.7 1033.8 1034.3 DAY 9 18 3 5 18 8 1 6 22 24 2 7 1995 1032.9 1027.1 1028.2 1019.8 1018.7 1012.0 1006.2 1009.6 1019.3 1032.9 1030.5 1033.8 1033.8 DAY 7 12 3 7 26 23 23 24 27 17 15 10 1996 1036.8 1029.2 1022.9 1028.0 1018.2 1013.9 1012.2 1016.8 1016.1 1027.1 1038.4 1034.7 1038.4 DAY 10 3 16 4 26 11 3 29 24 18 18 7 1997 1029.8 1032.3 1032.5 1020.7 1019.1 1011.3 1008.3 1009.2 1017.5 1023.1 1035.1 1031.5 1035.1 DAY 19 8 11 13 15 4 19 28 15 9 7 28 1998 1029.0 1035.6 1026.4 1021.1 1021.3 1012.3 1010.7 1010.4 1018.3 1031.7 1028.8 1032.5 1035.6 DAY 22 23 26 1 2 5 15 8 12 9 20 29 1999 1039.9 1025.8 1025.9 1021.6 1017.4 1014.1 1009.7 1010.6 1017.8 1025.3 1034.8 1032.5 1039.9 DAY 2 11 18 22 11 16 27 19 28 26 30 5 2000 1029.5 1030.4 1025.4 1019.9 1014.0 1017.3 1010.7 1011.1 1016.1 1025.2 1035.1 1028.2 1035.1 DAY 24 10 15 2 4 13 30 8 25 15 17 4 2001 1031.8 1033.6 1030.5 1025.9 1017.1 1013.9 1007.7 1011.6 1019.3 1027.7 1025.2 1029.3 1033.6 DAY 26 9 11 1 18 1 29 11 21 27 2 22 2002 1031.1 1032.2 1035.4 1020.2 1018.0 1013.3 1010.8 1009.8 1017.2 1018.9 1030.4 1038.0 1038.0 DAY 27 18 10 1 17 24 28 31 29 23 18 3 2003 1028.9 1028.7 1033.0 1025.3 1029.5 1018.7 1010.3 1010.5 1022.0 1021.7 1032.8 1040.2 1040.2 DAY 22 12 2 30 1 6 3 30 26 15 25 12 2004 1025.4 1022.0 1033.6 1023.2 1017.5 1015.8 1012.1 1009.3 1018.3 1026.1 1027.6 1035.0 1035.0 DAY 1 25 8 5 21 13 7 30 29 14 30 3 2005 1028.9 1029.9 1024.0 1032.8 1016.9 1013.5 1007.6 1011.1 1012.9 1028.4 1028.9 1036.1 1036.1 DAY 9 16 26 5 11 8 30 29 9 23 25 30 1977-2005 1041.7 1043.0 1043.6 1032.8 1029.5 1023.1 1016.9 1021.7 1025.9 1036.9 1038.9 1040.8 1043.6 YEAR-DAY 83- 8 84-18 85- 5 5- 5 3- 1 79-10 78- 7 80-30 81-23 82-25 87-30 78-23 85- 5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 126 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF COMPUTED QFF PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** 1014.2 ****** 1008.8 1001.3 999.3 999.9 1009.9 1011.0 1013.8 1014.6 ****** DAY ** ** 4 ** 4 21 8 17 15 17 17 22 1978 1013.2 1013.5 1005.8 998.2 1003.7 992.8 994.8 1003.8 1006.8 1012.3 1016.6 1008.0 992.8 DAY 21 21 12 25 31 21 1 14 1 29 1 16 1979 1011.4 1009.3 1001.9 1006.9 1010.1 1003.5 998.4 1003.8 1009.0 1009.9 1004.8 1010.6 998.4 DAY 6 11 27 12 16 23 6 14 5 4 29 1 1980 1009.6 1010.8 1003.3 1002.8 1006.0 1001.3 1003.1 1002.3 1007.9 1007.0 1012.8 1011.3 1001.3 DAY 6 18 2 26 23 16 29 19 6 4 9 12 1981 1011.6 1008.4 1001.5 1000.0 1002.3 1002.2 1000.6 1003.5 1009.0 1014.7 1007.8 1013.8 1000.0 DAY 3 9 13 30 1 4 1 13 16 16 5 18 1982 1011.4 ****** ****** ****** 1010.3 1005.2 997.4 1001.8 1010.5 1011.3 1015.0 1017.6 ****** DAY 9 ** ** ** 14 1 30 4 13 20 6 28 1983 1003.3 1010.7 1006.7 1007.9 1007.3 1003.7 995.9 1001.6 1006.6 1008.8 1015.0 1013.6 995.9 DAY 24 17 5 23 12 21 27 28 8 4 12 12 1984 1018.1 1012.1 1006.6 1007.6 1002.0 1000.6 1002.3 1000.3 1008.7 1008.6 1010.9 1016.7 1000.3 DAY 8 8 12 16 28 20 15 15 8 18 12 14 1985 1013.8 1002.2 1007.9 1006.6 1007.0 1000.6 997.7 1002.0 1003.9 1010.0 1014.7 1001.0 997.7 DAY 2 26 24 24 31 19 19 5 7 10 10 19 1986 1007.4 1008.4 1014.3 1006.4 1001.1 998.4 1001.5 1002.6 1008.8 1011.4 1006.4 1005.3 998.4 DAY 19 6 9 11 3 17 10 15 6 6 9 30 1987 1010.1 1005.7 1001.4 999.1 1001.4 1001.3 996.7 997.7 1003.0 1011.3 1005.4 1008.2 996.7 DAY 2 10 19 19 22 18 8 18 5 4 7 13 1988 1010.1 1007.8 1001.4 1001.9 998.3 993.9 996.0 998.5 1003.2 1007.4 1010.3 995.1 993.9 DAY 31 1 4 23 28 15 15 29 5 20 28 27 1989 1010.1 1013.8 1000.6 1007.7 1003.0 997.8 996.0 996.5 1001.4 1006.0 1011.8 1012.4 996.0 DAY 17 23 29 14 31 10 6 1 12 1 15 6 1990 1010.5 1003.2 1009.4 1002.4 995.2 995.7 995.3 998.1 1002.0 1009.0 1012.0 1013.8 995.2 DAY 23 15 14 15 12 26 27 7 5 1 9 25 1991 1012.9 1008.7 1003.8 999.8 999.7 995.3 991.9 999.1 1001.7 1012.2 1011.8 1004.9 991.9 DAY 30 4 6 4 22 11 7 5 8 4 4 1 1992 1011.1 1005.2 1000.2 1004.1 1003.5 997.8 998.6 1001.7 1004.0 1010.1 1003.9 1013.2 997.8 DAY 16 24 30 22 9 27 23 24 17 24 25 27 1993 1009.1 1010.9 1005.1 1000.0 1005.6 999.6 999.7 999.0 1000.7 1007.2 1004.9 1015.9 999.0 DAY 8 21 8 20 23 16 1 12 3 1 10 4 1994 1007.2 1004.0 1002.1 1005.2 1002.4 997.7 995.4 997.5 1007.0 1012.3 1005.8 1004.7 995.4 DAY 16 1 7 26 1 16 20 1 2 14 23 3 1995 1012.3 1006.2 1002.2 1005.4 1003.9 995.6 993.8 996.9 1002.4 1008.4 1003.6 1016.4 993.8 DAY 11 8 25 19 7 30 16 22 19 3 11 25 1996 1009.0 1008.6 1006.6 1001.8 1002.6 998.5 999.9 998.3 998.5 1005.5 1016.8 1010.5 998.3 DAY 6 1 25 13 29 1 7 8 8 27 6 25 1997 1008.9 1008.9 999.9 1000.5 997.1 998.9 996.2 996.2 998.9 1008.2 1011.2 1006.2 996.2 DAY 16 22 25 5 4 30 11 14 2 6 5 9 1998 1004.3 1005.2 999.8 1000.2 999.0 1002.1 991.3 1001.8 1002.0 1003.9 1010.7 1013.6 991.3 DAY 13 8 18 21 21 24 5 23 4 1 1 17 1999 1007.1 999.8 1004.8 1005.5 1003.3 992.9 998.4 1000.2 1000.9 1009.4 1009.8 1012.0 992.9 DAY 9 20 21 13 18 25 22 6 15 18 25 15 2000 1005.3 1012.8 1003.4 1001.0 997.9 999.6 998.1 996.2 998.1 1012.4 1015.0 1012.3 996.2 DAY 21 6 24 10 26 8 8 3 1 12 6 21 2001 1018.2 993.6 1001.6 1001.6 997.5 992.9 996.2 997.5 1001.8 1007.9 1002.7 1008.9 992.9 DAY 4 21 24 12 9 6 10 30 8 6 17 20 2002 1007.4 1006.0 999.8 996.2 1001.9 994.6 996.6 995.7 1004.9 1008.8 1009.7 1002.7 994.6 DAY 7 26 28 3 29 20 24 17 11 21 12 21 2003 1005.9 1002.9 998.0 1004.0 1004.1 999.2 994.6 1002.0 1002.7 1005.2 1010.7 1009.1 994.6 DAY 28 20 26 26 30 29 7 6 6 26 1 6 2004 1005.3 994.1 1004.8 1000.2 997.7 997.2 1001.5 993.4 1003.2 1009.8 1000.2 1011.9 993.4 DAY 23 15 30 23 12 17 24 12 10 3 23 12 2005 1003.2 1005.1 1004.3 1004.5 999.1 991.8 992.1 996.8 1002.6 1005.3 1014.5 1009.6 991.8 DAY 23 1 10 29 3 20 6 7 4 20 8 17 1977-2005 1003.2 993.6 998.0 996.2 995.2 991.8 991.3 993.4 998.1 1003.9 1000.2 995.1 991.3 YEAR-DAY 5-23 1-21 3-26 2- 3 90-12 5-20 98- 5 4-12 0- 1 98- 1 4-23 88-27 98- 5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 127 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFE PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 897.6 897.6 900.2 896.0 ****** 1980 896.2 896.5 894.0 892.6 894.7 892.5 891.7 892.9 895.4 897.6 897.9 896.8 894.9 1981 895.9 894.8 893.1 893.4 894.6 893.7 892.0 893.2 897.7 900.2 896.8 897.1 895.2 1982 895.7 895.6 894.7 894.8 897.9 893.8 890.9 892.8 897.3 898.0 899.6 898.2 895.8 1983 896.6 895.0 895.3 895.0 894.0 893.5 891.2 892.0 895.3 898.9 899.2 899.0 895.4 1984 897.0 900.8 894.7 893.0 894.0 893.0 891.5 891.1 896.7 899.8 898.2 900.6 895.9 1985 896.3 890.4 898.2 893.5 894.7 891.3 888.7 891.1 891.8 895.0 895.7 893.5 893.3 1986 892.8 891.4 894.0 893.0 890.9 887.8 890.0 891.4 894.1 ****** 897.4 894.9 ****** 1987 895.0 ****** 888.2 891.8 890.4 889.7 ****** ****** ****** ****** ****** ****** ****** 1988 893.2 892.9 888.9 892.0 891.3 887.3 887.3 888.9 892.4 895.3 894.0 891.8 891.3 1989 893.7 895.7 889.6 893.0 892.1 888.9 ****** ****** 888.9 ****** 894.8 892.6 ****** 1990 894.0 891.1 894.5 890.0 891.1 888.1 888.4 889.8 890.9 895.3 895.6 894.9 892.0 1991 893.4 893.7 891.9 891.4 889.2 889.5 887.1 888.9 893.1 895.5 896.4 891.6 891.8 1992 892.7 889.2 891.8 890.6 892.1 888.3 888.4 891.7 893.5 894.2 894.7 893.1 891.7 1993 893.8 893.4 892.0 890.2 890.8 889.4 889.6 890.7 891.6 897.9 895.5 895.9 892.6 1994 892.8 891.9 891.5 892.1 891.1 888.2 886.8 888.3 895.6 896.8 892.3 894.3 891.8 1995 894.5 892.8 891.9 890.2 892.5 888.3 886.3 888.5 890.8 895.8 893.1 895.5 891.7 1996 895.1 892.4 890.6 892.2 891.6 889.8 889.8 889.9 889.3 894.5 898.2 894.9 892.4 1997 891.6 893.4 889.2 889.3 891.9 888.4 886.7 888.9 892.7 893.7 895.7 893.0 891.2 1998 891.5 892.5 890.1 890.7 892.0 891.1 887.8 890.6 891.7 895.5 895.5 897.0 892.2 1999 894.1 890.7 891.2 892.1 891.5 888.4 887.9 889.3 891.2 893.9 895.0 896.8 891.8 2000 891.7 892.7 891.3 890.4 889.9 889.1 889.3 889.6 891.1 895.6 897.4 894.1 891.9 2001 895.9 892.1 891.5 890.9 889.2 888.4 888.4 889.8 891.7 894.5 893.8 894.5 891.7 2002 893.6 893.1 891.3 889.0 890.4 888.3 889.4 888.1 892.3 894.1 895.9 893.7 891.6 2003 893.1 889.8 891.1 892.1 892.5 888.9 886.5 890.1 891.8 892.7 895.6 895.5 891.6 2004 889.9 891.0 894.1 890.8 889.2 889.2 889.3 888.3 893.4 896.2 893.2 893.7 891.5 2005 891.8 891.8 889.9 893.1 891.5 888.9 888.1 889.2 891.4 895.6 896.0 895.9 891.9 MEAN 893.9 893.0 892.1 891.8 892.0 889.8 888.9 890.2 893.1 896.0 896.1 895.2 892.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 128 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFE PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 902.4 905.5 908.1 903.2 ****** DAY ** ** ** ** ** ** ** ** 23 9 10 22 1980 903.0 903.0 902.7 901.4 901.9 898.7 897.6 901.0 903.1 901.9 905.9 904.0 905.9 DAY 31 2 27 1 16 11 11 30 25 9 2 20 1981 904.9 900.7 902.6 901.0 904.2 899.6 897.5 897.8 903.0 906.8 904.4 905.3 906.8 DAY 8 27 8 19 21 9 29 3 23 28 15 1 1982 904.6 903.9 901.3 904.0 906.2 899.4 897.0 897.6 902.9 906.9 904.7 906.9 906.9 DAY 21 11 5 4 9 6 7 15 20 25 18 9 1983 909.4 902.5 903.8 901.5 900.5 898.5 896.4 897.6 900.5 905.4 907.3 907.8 909.4 DAY 7 10 14 29 18 1 1 31 27 28 26 3 1984 906.2 909.5 902.2 899.0 899.1 898.3 896.5 895.5 901.3 908.3 906.8 909.9 909.9 DAY 4 18 4 4 12 15 3 30 30 21 30 18 1985 903.1 900.2 910.8 907.2 902.4 897.1 892.7 894.7 899.3 903.1 902.4 901.5 910.8 DAY 14 23 5 16 12 9 16 12 22 31 17 14 1986 901.6 896.5 899.3 901.1 898.3 894.2 893.4 894.4 897.6 ****** 903.6 906.2 ****** DAY 28 13 27 4 18 2 31 17 7 ** 15 6 1987 904.2 ****** 899.2 898.9 893.8 894.2 ****** ****** ****** ****** ****** ****** ****** DAY 20 ** 22 30 6 5 ** ** ** ** ** ** 1988 901.2 902.9 896.7 903.0 899.2 892.8 889.8 894.1 897.8 902.6 903.1 899.3 903.1 DAY 10 6 17 8 4 7 30 21 13 16 5 21 1989 903.5 902.7 896.0 896.6 896.9 892.5 ****** ****** 894.3 ****** 900.9 897.6 ****** DAY 21 3 7 20 20 1 ** ** 19 ** 7 18 1990 901.5 900.4 904.4 896.4 898.2 893.4 892.1 893.9 895.5 905.4 903.4 902.5 905.4 DAY 26 7 9 23 15 4 16 29 23 15 22 28 1991 900.6 900.8 897.6 898.2 894.8 895.4 893.1 893.1 898.4 899.7 900.2 899.0 900.8 DAY 12 14 12 28 4 17 11 27 15 12 27 16 1992 903.1 896.9 899.8 896.7 899.7 894.2 893.4 897.7 898.4 900.4 904.4 901.0 904.4 DAY 9 15 12 30 2 6 12 31 29 29 3 2 1993 904.7 903.0 900.0 896.1 898.5 899.4 894.6 895.2 898.9 902.7 902.8 901.0 904.7 DAY 6 9 16 24 9 22 27 28 22 16 21 6 1994 904.1 902.6 897.4 901.9 897.8 891.4 890.6 892.0 901.3 901.3 898.9 901.8 904.1 DAY 9 17 24 5 18 8 13 6 22 11 2 21 1995 903.5 899.2 900.6 895.9 897.1 892.6 889.7 894.0 896.4 906.3 902.6 903.4 906.3 DAY 6 12 2 6 26 2 4 24 27 17 15 10 1996 904.9 897.7 894.8 900.8 896.5 895.5 896.5 898.2 897.2 904.0 907.7 902.3 907.7 DAY 9 12 28 4 26 11 3 29 30 1 18 7 1997 901.4 900.0 902.5 895.3 897.6 894.2 892.0 893.0 897.6 900.0 906.4 901.0 906.4 DAY 23 7 11 13 11 6 19 21 7 8 7 28 1998 899.3 906.0 899.1 899.0 899.2 895.4 893.6 894.2 897.9 904.8 903.8 904.2 906.0 DAY 22 22 26 12 8 5 19 9 26 9 20 29 1999 905.4 899.5 898.6 898.4 895.5 896.5 892.4 894.9 896.8 899.0 904.5 905.1 905.4 DAY 2 11 18 22 1 16 18 19 23 26 30 10 2000 899.5 901.1 900.5 896.5 895.7 894.3 894.5 893.8 896.1 901.0 906.0 901.4 906.0 DAY 24 29 26 1 4 13 30 8 25 15 16 4 2001 900.5 905.0 902.0 902.1 895.8 895.0 891.4 894.6 897.8 902.3 898.8 900.9 905.0 DAY 25 9 1 1 18 1 28 5 19 10 2 9 2002 901.2 902.9 905.0 895.6 896.8 895.8 893.5 893.7 897.0 898.2 903.0 905.3 905.3 DAY 27 18 10 1 16 24 2 29 29 10 17 3 2003 899.0 900.0 901.8 900.0 901.6 895.7 892.9 892.8 899.1 899.0 903.7 907.3 907.3 DAY 10 12 2 30 1 6 3 30 22 15 25 11 2004 896.6 895.4 905.4 897.1 896.2 896.4 893.6 892.3 897.6 902.4 899.4 903.7 905.4 DAY 11 29 8 10 21 5 7 17 20 14 28 3 2005 900.3 900.2 895.5 904.9 897.1 893.7 891.8 893.4 895.7 903.0 900.7 904.4 904.9 DAY 9 16 26 5 11 8 8 29 7 23 23 29 1977-2005 909.4 909.5 910.8 907.2 906.2 899.6 897.6 901.0 903.1 908.3 908.1 909.9 910.8 YEAR-DAY 83- 7 84-18 85- 5 85-16 82- 9 81- 9 80-11 80-30 80-25 84-21 79-10 84-18 85- 5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 129 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFE PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 892.1 889.9 884.6 886.6 ****** DAY ** ** ** ** ** ** ** ** 5 4 29 1 1980 887.5 887.4 879.4 886.0 889.8 886.4 888.0 886.7 889.8 892.0 890.8 886.4 879.4 DAY 6 18 2 26 23 16 30 19 13 4 9 11 1981 885.9 887.4 881.8 880.7 887.1 887.2 886.3 889.2 892.6 894.0 888.2 889.2 880.7 DAY 3 1 12 30 12 4 1 13 12 16 5 18 1982 887.0 888.5 885.2 885.7 890.6 888.8 884.9 888.5 892.4 891.8 890.9 891.3 884.9 DAY 31 14 2 18 14 11 31 1 13 5 6 28 1983 879.5 885.7 885.1 890.5 888.2 888.4 886.4 887.0 890.5 890.6 891.9 889.7 879.5 DAY 24 17 5 2 4 7 19 28 8 4 12 27 1984 891.3 885.6 885.2 887.7 886.4 884.8 888.0 887.3 891.2 890.2 888.7 890.3 884.8 DAY 14 8 12 9 28 20 15 15 8 17 12 14 1985 886.3 881.6 885.5 889.4 889.0 885.8 883.2 887.0 886.3 887.6 891.1 881.3 881.3 DAY 2 5 24 3 3 20 19 5 6 10 26 19 1986 882.1 884.5 887.4 886.4 883.7 883.2 886.3 887.2 890.7 ****** 887.0 883.6 ****** DAY 19 6 9 11 3 17 19 22 25 ** 30 20 1987 884.9 ****** 878.2 879.8 884.3 886.1 ****** ****** ****** ****** ****** ****** ****** DAY 2 ** 19 19 22 2 ** ** ** ** ** ** 1988 885.5 884.4 878.6 884.7 884.1 881.1 884.0 882.5 887.3 886.0 887.1 880.1 878.6 DAY 31 1 4 30 28 15 8 29 4 30 28 27 1989 885.9 888.0 879.8 888.4 884.9 883.0 ****** ****** 884.9 ****** 888.1 886.8 ****** DAY 1 22 29 28 7 10 ** ** 13 ** 24 6 1990 885.6 878.4 886.8 882.2 882.2 882.2 884.3 886.0 886.2 887.7 889.4 887.1 878.4 DAY 17 15 24 15 12 26 27 7 5 31 8 25 1991 884.9 884.4 880.8 879.8 881.8 881.3 878.8 884.2 885.7 890.9 889.7 883.2 878.8 DAY 3 4 6 4 22 11 7 11 19 4 4 1 1992 882.8 882.2 880.4 885.1 885.1 883.4 883.9 886.6 886.7 888.7 885.0 888.1 880.4 DAY 30 24 30 22 9 27 9 18 17 24 25 27 1993 881.2 887.0 882.4 882.1 887.6 884.9 884.8 884.7 885.1 888.1 884.3 888.4 881.2 DAY 8 21 21 20 6 16 24 12 13 28 10 4 1994 881.8 883.4 880.3 883.7 884.8 882.8 882.8 883.5 890.2 889.6 884.8 881.0 880.3 DAY 16 1 7 2 1 15 30 1 2 14 17 3 1995 887.9 883.0 880.9 885.0 887.5 882.0 881.7 883.1 886.5 889.4 882.4 889.9 880.9 DAY 1 8 25 19 6 29 16 22 19 3 25 25 1996 884.7 881.5 884.1 883.5 886.4 885.1 885.0 883.8 882.6 886.7 891.9 886.0 881.5 DAY 6 5 2 18 29 1 6 8 8 27 28 24 1997 882.5 885.5 879.1 879.1 880.8 884.7 883.2 883.0 884.7 888.6 891.5 883.2 879.1 DAY 31 22 25 9 4 30 15 14 1 6 19 9 1998 878.0 877.8 877.6 883.1 882.9 888.1 878.6 887.6 887.6 885.7 889.4 889.3 877.6 DAY 13 13 18 21 21 24 5 16 2 1 1 20 1999 885.3 878.1 884.6 883.6 886.2 879.7 884.0 885.7 885.9 889.5 887.7 888.2 878.1 DAY 9 20 20 8 19 24 22 6 15 18 25 15 2000 882.0 884.7 883.2 886.6 883.9 884.9 884.3 884.0 884.4 891.3 892.0 886.1 882.0 DAY 21 6 24 10 26 5 10 3 1 17 21 15 2001 891.9 878.5 882.2 881.3 882.2 880.5 883.6 883.0 886.6 888.2 883.6 886.2 878.5 DAY 4 21 24 12 9 6 18 30 4 6 17 5 2002 885.0 882.7 882.1 876.0 884.4 880.9 882.0 882.2 887.9 888.0 887.6 879.9 876.0 DAY 7 26 28 3 29 20 24 17 10 21 12 21 2003 879.0 877.4 878.6 886.1 886.5 883.8 882.2 887.3 884.7 885.9 889.2 885.6 877.4 DAY 28 20 26 5 29 30 7 26 6 25 20 6 2004 880.3 877.3 884.8 882.3 881.1 883.4 886.3 881.1 886.8 889.2 879.5 887.3 877.3 DAY 23 15 30 15 15 17 13 12 10 21 23 9 2005 880.0 883.0 884.2 885.9 881.8 878.9 881.2 883.7 886.9 886.4 890.3 887.5 878.9 DAY 23 1 10 27 3 20 5 7 4 20 8 26 1977-2005 878.0 877.3 877.6 876.0 880.8 878.9 878.6 881.1 882.6 885.7 879.5 879.9 876.0 YEAR-DAY 98-13 4-15 98-18 2- 3 97- 4 5-20 98- 5 4-12 96- 8 98- 1 4-23 2-21 2- 3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 130 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QNH PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1022.7 1022.6 1025.6 1020.9 ****** 1980 1021.1 1021.4 1018.7 1017.2 1019.4 1017.0 1016.1 1017.5 1020.3 1022.6 1023.0 1021.7 1019.7 1981 1020.8 1019.6 1017.6 1018.0 1019.4 1018.3 1016.5 1017.8 1022.8 1025.5 1021.8 1022.2 1020.0 1982 1020.6 1020.5 1019.5 1019.6 1023.0 1018.4 1015.2 1017.3 1022.4 1023.2 1024.9 1023.3 1020.6 1983 1021.5 1019.7 1020.2 1019.8 1018.6 1018.1 1015.5 1016.5 1020.2 1024.1 1024.4 1024.3 1020.2 1984 1022.0 1026.2 1019.4 1017.6 1018.6 1017.5 1015.9 1015.4 1021.7 1025.1 1023.3 1026.0 1020.7 1985 1021.2 1014.7 1023.3 1018.1 1019.4 1015.7 1012.8 1015.4 1016.2 1019.8 1020.5 1018.1 1017.9 1986 1017.4 1015.8 1018.6 1017.5 1015.2 1011.7 1014.2 1015.8 1018.8 ****** 1022.5 1019.6 ****** 1987 1019.8 ****** 1012.2 1016.2 1014.6 1013.8 ****** ****** ****** ****** ****** ****** ****** 1988 1017.8 1017.4 1013.0 1016.4 1015.7 1011.3 1011.2 1013.0 1016.9 1020.2 1018.7 1016.2 1015.6 1989 1018.4 1020.5 1013.7 1017.5 1016.5 1013.0 ****** ****** 1013.0 ****** 1019.5 1017.1 ****** 1990 1018.7 1015.4 1019.3 1014.3 1015.5 1012.2 1012.4 1014.0 1015.3 1020.1 1020.4 1019.7 1016.4 1991 1018.0 1018.3 1016.3 1015.7 1013.3 1013.6 1011.0 1013.0 1017.6 1020.3 1021.4 1016.0 1016.2 1992 1017.2 1013.4 1016.3 1014.8 1016.6 1012.4 1012.5 1016.1 1018.1 1018.9 1019.5 1017.7 1016.1 1993 1018.5 1018.0 1016.5 1014.5 1015.2 1013.5 1013.8 1015.0 1016.0 1023.0 1020.3 1020.7 1017.1 1994 1017.4 1016.4 1015.9 1016.6 1015.5 1012.2 1010.7 1012.4 1020.4 1021.8 1016.8 1019.0 1016.2 1995 1019.3 1017.3 1016.3 1014.4 1017.0 1012.3 1010.1 1012.5 1015.1 1020.6 1017.6 1020.3 1016.1 1996 1019.9 1016.8 1014.9 1016.7 1016.1 1014.0 1014.0 1014.2 1013.5 1019.2 1023.4 1019.7 1016.9 1997 1016.0 1018.0 1013.3 1013.5 1016.4 1012.5 1010.5 1013.0 1017.2 1018.4 1020.6 1017.6 1015.6 1998 1015.9 1017.0 1014.4 1015.0 1016.4 1015.4 1011.8 1014.9 1016.1 1020.3 1020.4 1022.0 1016.6 1999 1018.8 1015.0 1015.6 1016.5 1015.9 1012.5 1011.8 1013.4 1015.5 1018.5 1019.7 1021.8 1016.3 2000 1016.1 1017.2 1015.7 1014.6 1014.1 1013.2 1013.5 1013.8 1015.5 1020.5 1022.5 1018.8 1016.3 2001 1020.8 1016.5 1015.9 1015.3 1013.3 1012.5 1012.5 1014.0 1016.1 1019.2 1018.4 1019.2 1016.1 2002 1018.2 1017.6 1015.7 1013.1 1014.7 1012.3 1013.6 1012.2 1016.8 1018.8 1020.7 1018.4 1016.0 2003 1017.6 1013.9 1015.4 1016.6 1017.0 1013.0 1010.4 1014.4 1016.2 1017.2 1020.5 1020.3 1016.0 2004 1014.1 1015.4 1018.8 1015.1 1013.3 1013.3 1013.4 1012.3 1018.0 1021.2 1017.7 1018.3 1015.9 2005 1016.3 1016.3 1014.1 1017.6 1015.8 1013.0 1012.1 1013.4 1015.7 1020.5 1020.9 1020.8 1016.4 MEAN 1018.6 1017.5 1016.6 1016.2 1016.4 1014.0 1013.0 1014.5 1017.6 1020.9 1021.0 1020.0 1017.2 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 131 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QNH PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1028.0 1031.5 1034.3 1028.9 ****** DAY ** ** ** ** ** ** ** ** 23 9 10 22 1980 1028.7 1028.7 1028.3 1026.9 1027.5 1023.9 1022.7 1026.5 1028.8 1027.5 1031.9 1029.8 1031.9 DAY 31 2 27 1 16 11 11 30 25 9 2 20 1981 1030.8 1026.1 1028.2 1026.5 1030.0 1024.9 1022.6 1022.9 1028.7 1032.9 1030.2 1031.2 1032.9 DAY 8 27 8 19 21 9 29 3 23 28 15 1 1982 1030.5 1029.7 1026.8 1029.8 1032.2 1024.7 1022.0 1022.7 1028.6 1033.0 1030.6 1033.0 1033.0 DAY 21 11 5 4 9 6 7 15 20 25 18 9 1983 1035.8 1028.1 1029.6 1027.0 1025.9 1023.7 1021.3 1022.7 1025.9 1031.3 1033.5 1034.0 1035.8 DAY 7 10 14 29 18 1 1 31 27 28 26 3 1984 1032.2 1035.9 1027.8 1024.2 1024.3 1023.5 1021.5 1020.3 1026.8 1034.6 1032.9 1036.3 1036.3 DAY 4 18 4 4 12 15 3 30 30 21 30 18 1985 1028.8 1025.6 1037.3 1033.3 1028.0 1022.1 1017.2 1019.4 1024.6 1028.8 1028.0 1027.0 1037.3 DAY 14 23 5 16 12 9 16 12 22 31 17 14 1986 1027.1 1021.5 1024.6 1026.6 1023.5 1018.9 1018.0 1019.1 1022.7 ****** 1029.3 1032.2 ****** DAY 28 13 27 4 18 2 31 17 7 ** 15 6 1987 1030.0 ****** 1024.5 1024.1 1018.4 1018.9 ****** ****** ****** ****** ****** ****** ****** DAY 20 ** 22 30 6 5 ** ** ** ** ** ** 1988 1026.7 1028.6 1021.7 1028.7 1024.5 1017.3 1014.0 1018.8 1022.9 1028.2 1028.8 1024.6 1028.8 DAY 10 6 17 8 4 7 30 21 13 16 5 21 1989 1029.2 1028.3 1020.9 1021.6 1021.9 1017.0 ****** ****** 1019.0 ****** 1026.3 1022.7 ****** DAY 21 3 7 20 20 1 ** ** 19 ** 7 18 1990 1027.0 1025.8 1030.2 1021.3 1023.3 1018.0 1016.6 1018.6 1020.3 1031.3 1029.1 1028.1 1031.3 DAY 26 7 9 23 15 4 16 29 23 15 22 28 1991 1026.0 1026.2 1022.7 1023.3 1019.6 1020.2 1017.7 1017.7 1023.6 1025.0 1025.6 1024.2 1026.2 DAY 12 14 12 28 4 17 11 27 15 12 27 16 1992 1028.8 1021.9 1025.1 1021.7 1025.0 1018.9 1018.0 1022.8 1023.6 1025.8 1030.2 1026.5 1030.2 DAY 9 15 12 30 2 6 12 31 29 29 3 2 1993 1030.6 1028.7 1025.3 1021.0 1023.7 1024.7 1019.3 1020.0 1024.1 1028.3 1028.5 1026.5 1030.6 DAY 6 9 16 24 9 22 27 28 22 16 21 6 1994 1029.9 1028.2 1022.5 1027.5 1022.9 1015.8 1014.9 1016.4 1026.8 1026.8 1024.1 1027.3 1029.9 DAY 9 17 24 5 18 8 13 6 22 11 2 21 1995 1029.2 1024.5 1026.0 1020.8 1022.1 1017.1 1013.9 1018.7 1021.3 1032.3 1028.2 1029.1 1032.3 DAY 6 12 2 6 26 2 4 24 27 17 15 10 1996 1030.8 1022.8 1019.6 1026.2 1021.5 1020.3 1021.5 1023.3 1022.2 1029.8 1033.9 1027.9 1033.9 DAY 9 12 28 4 26 11 3 29 30 1 18 7 1997 1026.9 1025.3 1028.1 1020.1 1022.7 1018.9 1016.4 1017.6 1022.7 1025.3 1032.5 1026.5 1032.5 DAY 23 7 11 13 11 6 19 21 7 8 7 28 1998 1024.6 1032.0 1024.3 1024.2 1024.5 1020.2 1018.2 1018.9 1023.0 1030.7 1029.6 1030.0 1032.0 DAY 22 22 26 12 8 5 19 9 26 9 20 29 1999 1031.3 1024.8 1023.8 1023.6 1020.3 1021.5 1016.9 1019.7 1021.8 1024.2 1030.3 1031.0 1031.3 DAY 2 11 18 22 1 16 18 19 23 26 30 10 2000 1024.8 1026.6 1025.9 1021.5 1020.6 1019.0 1019.2 1018.4 1021.0 1026.5 1032.0 1026.9 1032.0 DAY 24 29 26 1 4 13 30 8 25 15 16 4 2001 1025.9 1030.9 1027.6 1027.7 1020.7 1019.8 1015.8 1019.3 1022.9 1027.9 1024.0 1026.3 1030.9 DAY 25 9 1 1 18 1 28 5 19 10 2 9 2002 1026.7 1028.6 1030.9 1020.5 1021.8 1020.7 1018.1 1018.3 1022.0 1023.3 1028.7 1031.2 1031.2 DAY 27 18 10 1 16 24 2 29 29 10 17 3 2003 1024.2 1025.3 1027.3 1025.3 1027.1 1020.6 1017.4 1017.3 1024.3 1024.2 1029.5 1033.5 1033.5 DAY 10 12 2 30 1 6 3 30 22 15 25 11 2004 1021.6 1020.2 1031.3 1022.1 1021.1 1021.3 1018.2 1016.8 1022.7 1028.0 1024.7 1029.5 1031.3 DAY 11 29 8 10 21 5 7 17 20 14 28 3 2005 1025.7 1025.6 1020.3 1030.8 1022.1 1018.3 1016.2 1018.0 1020.6 1028.7 1026.1 1030.2 1030.8 DAY 9 16 26 5 11 8 8 29 7 23 23 29 1977-2005 1035.8 1035.9 1037.3 1033.3 1032.2 1024.9 1022.7 1026.5 1028.8 1034.6 1034.3 1036.3 1037.3 YEAR-DAY 83- 7 84-18 85- 5 85-16 82- 9 81- 9 80-11 80-30 80-25 84-21 79-10 84-18 85- 5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 132 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QNH PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1016.6 1014.1 1008.2 1010.4 ****** DAY ** ** ** ** ** ** ** ** 5 4 29 1 1980 1011.4 1011.3 1002.4 1009.8 1014.0 1010.2 1012.0 1010.6 1014.0 1016.4 1015.1 1010.2 1002.4 DAY 6 18 2 26 23 16 30 19 13 4 9 11 1981 1009.7 1011.3 1005.1 1003.9 1011.0 1011.1 1010.1 1013.3 1017.1 1018.7 1012.2 1013.3 1003.9 DAY 3 1 12 30 12 4 1 13 12 16 5 18 1982 1010.9 1012.6 1008.9 1009.4 1014.9 1012.9 1008.6 1012.6 1016.9 1016.2 1015.2 1015.7 1008.6 DAY 31 14 2 18 14 11 31 1 13 5 6 28 1983 1002.6 1009.4 1008.8 1014.8 1012.2 1012.4 1010.2 1010.9 1014.8 1014.9 1016.3 1013.9 1002.6 DAY 24 17 5 2 4 7 19 28 8 4 12 27 1984 1015.7 1009.3 1008.9 1011.7 1010.2 1008.4 1012.0 1011.2 1015.6 1014.4 1012.8 1014.6 1008.4 DAY 14 8 12 9 28 20 15 15 8 17 12 14 1985 1010.1 1004.9 1009.2 1013.6 1013.1 1009.6 1006.7 1010.9 1010.1 1011.6 1015.4 1004.5 1004.5 DAY 2 5 24 3 3 20 19 5 6 10 26 19 1986 1005.4 1008.1 1011.3 1010.2 1007.2 1006.7 1010.1 1011.1 1015.0 ****** 1010.9 1007.1 ****** DAY 19 6 9 11 3 17 19 22 25 ** 30 20 1987 1008.6 ****** 1001.1 1002.9 1007.9 1009.9 ****** ****** ****** ****** ****** ****** ****** DAY 2 ** 19 19 22 2 ** ** ** ** ** ** 1988 1009.2 1008.0 1001.5 1008.3 1007.7 1004.3 1007.6 1005.9 1011.2 1009.8 1011.0 1003.2 1001.5 DAY 31 1 4 30 28 15 8 29 4 30 28 27 1989 1009.7 1012.0 1002.9 1012.4 1008.6 1006.4 ****** ****** 1008.6 ****** 1012.1 1010.7 ****** DAY 1 22 29 28 7 10 ** ** 13 ** 24 6 1990 1009.3 1001.3 1010.7 1005.6 1005.6 1005.6 1007.9 1009.8 1010.0 1011.7 1013.6 1011.0 1001.3 DAY 17 15 24 15 12 26 27 7 5 31 8 25 1991 1008.6 1008.0 1004.0 1002.9 1005.1 1004.5 1001.8 1007.8 1009.4 1015.2 1013.9 1006.7 1001.8 DAY 3 4 6 4 22 11 7 11 19 4 4 1 1992 1006.2 1005.6 1003.5 1008.8 1008.8 1006.9 1007.4 1010.4 1010.6 1012.8 1008.7 1012.1 1003.5 DAY 30 24 30 22 9 27 9 18 17 24 25 27 1993 1004.4 1010.9 1005.8 1005.4 1011.6 1008.6 1008.4 1008.3 1008.8 1012.1 1007.9 1012.4 1004.4 DAY 8 21 21 20 6 16 24 12 13 28 10 4 1994 1005.1 1006.9 1003.4 1007.2 1008.4 1006.2 1006.2 1007.0 1014.4 1013.8 1008.4 1004.2 1003.4 DAY 16 1 7 2 1 15 30 1 2 14 17 3 1995 1011.9 1006.4 1004.1 1008.7 1011.4 1005.3 1005.0 1006.6 1010.3 1013.6 1005.8 1014.1 1004.1 DAY 1 8 25 19 6 29 16 22 19 3 25 25 1996 1008.3 1004.8 1007.7 1007.0 1010.2 1008.8 1008.7 1007.3 1006.0 1010.6 1016.3 1009.8 1004.8 DAY 6 5 2 18 29 1 6 8 8 27 28 24 1997 1005.9 1009.2 1002.1 1002.1 1004.0 1008.3 1006.7 1006.4 1008.3 1012.7 1015.9 1006.7 1002.1 DAY 31 22 25 9 4 30 15 14 1 6 19 9 1998 1000.9 1000.7 1000.4 1006.6 1006.3 1012.1 1001.5 1011.6 1011.6 1009.4 1013.6 1013.4 1000.4 DAY 13 13 18 21 21 24 5 16 2 1 1 20 1999 1009.0 1001.0 1008.2 1007.1 1010.0 1002.8 1007.6 1009.4 1009.7 1013.7 1011.7 1012.2 1001.0 DAY 9 20 20 8 19 24 22 6 15 18 25 15 2000 1005.3 1008.3 1006.7 1010.4 1007.4 1008.6 1007.9 1007.6 1008.0 1015.7 1016.4 1009.9 1005.3 DAY 21 6 24 10 26 5 10 3 1 17 21 15 2001 1016.3 1001.4 1005.6 1004.5 1005.6 1003.7 1007.1 1006.4 1010.4 1012.2 1007.1 1010.0 1001.4 DAY 4 21 24 12 9 6 18 30 4 6 17 5 2002 1008.7 1006.1 1005.4 998.7 1008.0 1004.1 1005.3 1005.6 1011.9 1012.0 1011.6 1003.0 998.7 DAY 7 26 28 3 29 20 24 17 10 21 12 21 2003 1002.0 1000.2 1001.5 1009.9 1010.3 1007.3 1005.6 1011.2 1008.3 1009.7 1013.3 1009.3 1000.2 DAY 28 20 26 5 29 30 7 26 6 25 20 6 2004 1003.4 1000.1 1008.4 1005.7 1004.3 1006.9 1010.1 1004.3 1010.7 1013.3 1002.6 1011.2 1000.1 DAY 23 15 30 15 15 17 13 12 10 21 23 9 2005 1003.1 1006.4 1007.8 1009.7 1005.1 1001.9 1004.4 1007.2 1010.8 1010.2 1014.6 1011.4 1001.9 DAY 23 1 10 27 3 20 5 7 4 20 8 26 1977-2005 1000.9 1000.1 1000.4 998.7 1004.0 1001.9 1001.5 1004.3 1006.0 1009.4 1002.6 1003.0 998.7 YEAR-DAY 98-13 4-15 98-18 2- 3 97- 4 5-20 98- 5 4-12 96- 8 98- 1 4-23 2-21 2- 3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 133 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFF PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1016.9 1018.9 1026.6 1022.8 ****** 1980 1024.7 1026.0 1019.1 1013.3 1014.5 1009.9 1007.7 1010.1 1014.7 1020.6 1022.4 1023.6 1017.2 1981 1022.8 1021.3 1017.0 1015.7 1015.0 1011.9 1008.4 1010.0 1016.6 1023.2 1021.4 1024.3 1017.3 1982 1024.9 1023.9 1020.5 1015.3 1017.3 1011.3 1006.9 1010.1 1017.1 1020.9 1026.2 1027.0 1018.4 1983 1024.5 1021.8 1020.8 1016.8 1012.5 1010.5 1006.6 1008.3 1014.3 1021.7 1023.4 1027.1 1017.4 1984 1025.0 1030.9 1019.2 1014.3 1014.3 1010.3 1006.8 1007.0 1015.9 1022.8 1022.8 1030.6 1018.3 1985 1024.2 1015.7 1024.6 1014.4 1013.6 1007.3 ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.4 1024.2 ****** 1987 1023.7 ****** 1014.7 1016.2 1010.7 1008.6 ****** ****** ****** ****** ****** ****** ****** 1988 1023.1 1022.0 1014.7 1015.7 1013.0 1005.2 1004.9 1007.4 1013.1 1019.1 1019.7 1019.1 1014.7 1989 1025.5 1027.7 1015.7 1016.1 1013.7 1007.3 ****** ****** 1007.8 ****** 1021.2 1020.2 ****** 1990 1024.1 1019.8 1021.8 1013.9 1012.2 1006.2 1006.0 1007.9 1010.1 1019.2 1021.7 1024.8 1015.6 1991 1023.4 1023.0 1018.7 1014.5 1011.1 1008.8 1004.3 1006.9 1013.8 1019.0 1023.6 1019.7 1015.6 1992 1022.9 1017.3 1020.1 1015.0 1015.4 1007.5 1006.2 1011.4 1014.6 1018.1 1020.5 1021.4 1015.9 1993 1024.6 1022.8 1019.2 1013.5 1012.3 1008.6 1007.8 1009.3 1011.5 1022.9 1023.3 1025.1 1016.7 1994 1021.9 1021.3 1017.9 1015.9 1012.0 1007.6 1004.6 1006.1 1017.5 1021.4 1017.5 1023.6 1015.6 1995 1023.4 1021.3 1018.4 1013.3 1013.5 1007.1 1003.4 1005.8 1011.1 1020.5 1018.9 1025.1 1015.1 1996 1025.2 1021.5 1017.7 1016.7 1012.7 1008.9 1006.7 1006.9 1007.3 1017.2 1024.9 1021.9 1015.6 1997 1019.1 1022.8 1015.2 1011.1 1012.2 1005.5 1002.3 1005.2 1011.9 1015.1 1021.3 1019.8 1013.5 1998 1020.3 1021.1 1015.2 1012.2 1013.4 1009.7 1005.3 1008.7 1012.0 1019.1 1021.0 1024.7 1015.2 1999 1023.3 1017.2 1017.7 1016.2 1013.1 1006.8 1005.9 1006.8 1011.3 1016.9 1022.3 1025.2 1015.2 2000 1020.5 1021.7 1017.9 1012.0 1009.9 1008.0 1007.1 1007.3 1009.4 1018.6 1024.0 1021.0 1014.8 2001 1024.9 1019.0 1016.1 1012.3 1008.1 1007.2 1005.0 1006.4 1010.5 1016.7 1018.4 1020.9 1013.8 2002 1021.2 1020.5 1015.8 1011.5 1011.1 1006.0 1006.0 1004.1 1010.3 1014.8 1021.0 1022.9 1013.8 2003 1021.1 1016.4 1017.1 1015.3 1013.6 1007.3 1002.5 1007.1 1011.1 1013.2 1021.6 1023.3 1014.1 2004 1016.6 1016.9 1019.0 1013.9 1008.7 1006.5 1006.3 1004.6 1012.5 1018.9 1017.2 1021.9 1013.6 2005 1020.0 1019.9 1014.2 1015.4 1011.3 1006.3 1003.5 1006.1 1009.2 1017.2 1021.8 1022.6 1014.0 MEAN 1022.8 1021.3 1017.9 1014.4 1012.6 1008.0 1005.6 1007.4 1012.5 1019.0 1022.0 1023.3 1015.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 134 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFF PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1024.1 1029.1 1035.1 1033.2 ****** DAY ** ** ** ** ** ** ** ** 22 9 18 22 1980 1034.1 1036.7 1029.1 1026.0 1025.6 1019.7 1014.6 1022.3 1023.8 1026.1 1030.8 1033.3 1036.7 DAY 31 2 27 1 16 11 11 30 25 21 2 16 1981 1034.0 1029.4 1029.1 1025.3 1027.1 1019.2 1015.4 1015.0 1026.5 1031.8 1030.8 1032.6 1034.0 DAY 8 23 8 19 21 10 23 3 23 28 15 1 1982 1039.0 1034.5 1030.2 1029.4 1030.0 1017.9 1015.9 1015.9 1025.0 1035.6 1033.7 1040.5 1040.5 DAY 21 11 5 4 9 6 7 15 20 25 18 9 1983 1040.8 1030.9 1030.6 1024.9 1021.0 1017.9 1013.5 1015.4 1021.3 1029.3 1036.6 1034.6 1040.8 DAY 7 10 14 29 31 1 1 17 27 28 26 3 1984 1035.3 1042.8 1029.8 1026.1 1021.0 1019.2 1013.9 1013.3 1022.2 1035.5 1036.6 1041.2 1042.8 DAY 4 18 9 4 11 15 3 30 30 21 30 18 1985 1031.7 1030.2 1042.8 1034.1 1022.8 1016.1 ****** ****** ****** ****** ****** ****** ****** DAY 14 23 5 16 12 9 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1034.1 1039.9 ****** DAY ** ** ** ** ** ** ** ** ** ** 15 10 1987 1035.1 ****** 1030.4 1025.9 1018.8 1015.9 ****** ****** ****** ****** ****** ****** ****** DAY 11 ** 22 6 6 5 ** ** ** ** ** ** 1988 1033.1 1037.9 1025.0 1032.2 1024.6 1012.2 1009.9 1014.6 1021.5 1029.3 1028.7 1030.4 1037.9 DAY 10 7 17 8 4 7 27 21 21 16 5 29 1989 1036.7 1038.6 1024.5 1023.2 1021.5 1015.0 ****** ****** 1017.5 ****** 1030.3 1027.2 ****** DAY 28 3 12 1 1 1 ** ** 19 ** 8 18 1990 1034.8 1033.7 1036.5 1023.3 1022.2 1013.6 1012.5 1013.8 1015.9 1035.2 1031.3 1038.7 1038.7 DAY 26 7 16 23 15 6 31 29 27 15 23 30 1991 1032.5 1035.2 1028.6 1024.9 1020.0 1016.3 1014.1 1013.5 1022.7 1025.0 1030.3 1030.2 1035.2 DAY 12 13 12 14 4 17 11 27 27 12 24 17 1992 1037.8 1028.3 1033.3 1023.6 1028.4 1016.0 1014.8 1021.7 1022.9 1025.7 1032.3 1030.9 1037.8 DAY 9 16 12 30 2 6 12 31 29 29 17 2 1993 1038.4 1034.1 1030.9 1024.0 1025.1 1023.4 1013.9 1013.6 1021.5 1030.2 1033.1 1033.5 1038.4 DAY 6 9 16 23 9 22 27 23 22 7 21 6 1994 1035.8 1035.0 1026.2 1032.5 1022.7 1013.2 1011.4 1012.7 1025.0 1027.8 1024.3 1035.3 1035.8 DAY 9 18 24 5 18 5 1 6 22 24 2 7 1995 1033.9 1029.3 1030.6 1023.1 1021.0 1014.2 1008.7 1013.2 1021.1 1036.7 1032.0 1036.5 1036.7 DAY 7 17 5 6 26 23 24 24 27 17 15 10 1996 1039.0 1032.3 1024.7 1030.4 1020.3 1017.3 1015.7 1018.8 1017.3 1027.3 1038.4 1035.8 1039.0 DAY 10 3 16 4 26 11 3 29 24 18 18 7 1997 1030.2 1032.8 1032.5 1021.6 1020.4 1013.9 1009.5 1010.9 1018.2 1023.4 1034.2 1031.8 1034.2 DAY 23 7 11 12 6 6 19 24 7 8 7 28 1998 1029.2 1037.5 1026.5 1021.7 1023.0 1015.0 1013.0 1013.2 1021.1 1033.7 1030.3 1034.2 1037.5 DAY 3 22 26 1 3 5 15 9 12 9 20 29 1999 1041.0 1028.1 1030.3 1025.0 1020.4 1017.2 1011.4 1013.6 1020.7 1026.4 1036.2 1034.6 1041.0 DAY 2 11 18 22 11 16 27 19 23 26 30 24 2000 1031.5 1030.9 1028.3 1022.2 1017.3 1019.2 1011.9 1013.8 1017.4 1026.8 1035.1 1029.4 1035.1 DAY 14 29 26 1 10 13 25 8 25 15 16 4 2001 1031.9 1035.0 1030.5 1028.0 1018.0 1015.6 1008.3 1012.6 1020.1 1028.0 1025.8 1030.7 1035.0 DAY 25 9 11 1 18 1 30 11 21 27 19 21 2002 1030.2 1034.9 1036.6 1020.5 1020.1 1015.0 1012.7 1011.8 1016.6 1019.7 1031.4 1038.3 1038.3 DAY 25 18 10 26 16 24 1 31 29 31 18 3 2003 1029.0 1029.9 1034.0 1026.8 1029.5 1019.8 1010.9 1010.6 1021.5 1020.6 1034.0 1039.6 1039.6 DAY 22 12 2 30 1 6 3 30 26 15 25 12 2004 1024.7 1022.3 1033.9 1024.8 1018.6 1017.6 1012.4 1009.7 1018.5 1027.0 1028.4 1034.6 1034.6 DAY 1 4 8 5 21 13 7 17 29 14 28 3 2005 1029.6 1031.3 1025.4 1035.3 1018.8 1014.7 1008.5 1012.6 1014.5 1028.9 1028.6 1035.5 1035.5 DAY 9 17 26 5 11 8 8 29 7 23 27 29 1977-2005 1041.0 1042.8 1042.8 1035.3 1030.0 1023.4 1015.9 1022.3 1026.5 1036.7 1038.4 1041.2 1042.8 YEAR-DAY 99- 2 84-18 85- 5 5- 5 82- 9 93-22 82- 7 80-30 81-23 95-17 96-18 84-18 84-18 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 135 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFF PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1010.1 1007.8 1004.0 1012.3 ****** DAY ** ** ** ** ** ** ** ** 5 4 29 1 1980 1009.9 1013.5 1002.2 1005.0 1005.5 1002.5 1002.6 1002.6 1008.7 1009.3 1010.7 1009.4 1002.2 DAY 6 18 2 26 23 16 30 19 13 4 9 11 1981 1011.2 1012.7 1002.4 996.7 1004.2 1003.4 1000.7 1004.7 1001.8 1014.4 1007.1 1012.9 996.7 DAY 3 9 12 30 15 4 1 13 8 16 5 18 1982 1010.7 1009.4 1006.6 1003.4 1008.6 1004.8 1000.6 1002.9 1010.0 1011.0 1014.2 1017.3 1000.6 DAY 8 4 18 18 14 11 31 7 13 5 6 28 1983 1000.8 1009.1 1005.4 1010.9 1006.1 1003.5 999.9 1002.8 1007.0 1009.4 1013.1 1014.1 999.9 DAY 24 17 5 17 4 7 19 28 8 4 12 11 1984 1017.1 1010.4 1007.5 1007.1 1002.3 999.6 1002.3 1001.6 1009.4 1008.4 1010.6 1015.6 999.6 DAY 1 8 12 24 28 20 15 15 8 17 12 14 1985 1010.5 1001.8 1005.7 1007.6 1007.2 1000.3 ****** ****** ****** ****** ****** ****** ****** DAY 2 5 24 3 3 20 ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1010.9 1007.5 ****** DAY ** ** ** ** ** ** ** ** ** ** 30 20 1987 1010.3 ****** 1001.3 998.6 1002.2 1002.9 ****** ****** ****** ****** ****** ****** ****** DAY 2 ** 19 19 22 18 ** ** ** ** ** ** 1988 1011.0 1008.1 1000.7 1006.5 1001.6 995.7 999.7 999.3 1006.2 1008.9 1010.5 1004.0 995.7 DAY 31 1 4 23 28 15 15 29 9 30 19 26 1989 1014.7 1015.6 1003.5 1007.8 1003.7 999.7 ****** ****** 1003.1 ****** 1012.3 1013.2 ****** DAY 2 22 28 28 7 10 ** ** 13 ** 15 8 1990 1013.2 1001.1 1010.3 1004.2 1000.1 1000.0 999.5 1001.9 1003.0 1010.9 1012.0 1014.3 999.5 DAY 4 15 11 15 12 26 27 7 13 31 8 17 1991 1012.3 1009.5 1004.5 998.7 1001.1 998.2 992.3 1001.1 1005.0 1012.1 1013.5 1006.2 992.3 DAY 4 4 6 4 22 11 7 11 19 4 4 1 1992 1011.1 1003.5 1002.1 1007.1 1005.5 1000.2 1000.2 1002.9 1005.7 1011.4 1005.5 1014.6 1000.2 DAY 16 24 30 22 9 27 9 24 17 24 25 13 1993 1009.3 1012.4 1006.5 1000.3 1007.1 1002.0 1001.8 1001.3 1002.3 1008.4 1005.3 1016.7 1000.3 DAY 8 21 21 20 31 16 24 12 13 1 10 4 1994 1008.1 1007.6 1000.5 1007.0 1004.6 999.9 998.2 1000.0 1009.5 1012.5 1007.1 1003.8 998.2 DAY 16 1 7 23 13 15 30 1 2 14 17 3 1995 1013.6 1006.1 1002.9 1004.8 1006.6 997.3 996.4 998.7 1005.2 1010.0 1004.0 1017.7 996.4 DAY 16 8 25 19 6 30 16 22 19 3 11 25 1996 1007.5 1008.7 1008.1 1003.7 1004.9 1001.5 1001.2 999.8 998.5 1004.8 1016.3 1009.7 998.5 DAY 6 1 2 18 29 4 6 8 8 27 6 29 1997 1009.3 1010.8 1000.5 998.3 998.2 1000.2 998.4 996.8 999.7 1007.8 1012.6 1005.2 996.8 DAY 16 22 25 9 4 29 15 14 2 6 4 9 1998 1003.9 1005.5 995.6 1000.3 1000.6 1004.8 993.6 1004.4 1005.7 1004.2 1011.8 1016.2 993.6 DAY 13 13 18 21 21 24 5 23 1 1 1 30 1999 1008.6 998.8 1008.2 1006.4 1005.8 995.8 1000.0 1001.3 1003.3 1009.8 1010.8 1012.6 995.8 DAY 9 20 21 8 19 25 22 6 15 18 19 14 2000 1006.4 1012.2 1003.4 1005.6 999.8 1002.3 1001.0 998.9 999.8 1013.4 1016.6 1012.3 998.9 DAY 21 6 24 30 26 5 10 3 1 11 6 11 2001 1018.5 1000.4 1001.7 999.4 1000.2 1000.6 997.4 997.8 1003.5 1008.3 1003.3 1008.8 997.4 DAY 4 21 24 12 29 26 9 30 4 6 17 5 2002 1005.2 1005.3 1002.1 995.1 1001.6 996.4 996.9 995.4 1004.7 1008.8 1009.4 1001.8 995.1 DAY 7 26 28 3 29 19 24 8 10 21 12 21 2003 1004.2 1000.6 998.7 1004.7 1005.1 1001.3 995.9 1004.2 1002.0 1005.2 1011.4 1009.6 995.9 DAY 28 20 26 26 29 17 8 14 6 25 1 6 2004 1004.0 995.8 1004.5 1001.0 998.3 998.7 1003.3 994.1 1003.9 1010.0 999.0 1013.9 994.1 DAY 23 15 30 23 12 17 9 12 10 2 23 9 2005 1005.6 1005.8 1003.6 1005.0 999.4 992.9 994.2 998.0 1002.6 1004.8 1013.4 1010.3 992.9 DAY 23 1 10 27 3 20 6 8 4 20 8 16 1977-2005 1000.8 995.8 995.6 995.1 998.2 992.9 992.3 994.1 998.5 1004.2 999.0 1001.8 992.3 YEAR-DAY 83-24 4-15 98-18 2- 3 97- 4 5-20 91- 7 4-12 96- 8 98- 1 4-23 2-21 91- 7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 136 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF COMPUTED QFF PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1017.3 1019.5 1027.2 1023.5 ****** 1980 1025.9 1027.0 1019.9 1013.9 1014.9 1010.4 1008.1 1010.5 1015.2 1021.1 1023.0 1024.4 1017.9 1981 1023.6 1022.1 1017.8 1016.4 1015.5 1012.3 1008.6 1010.3 1017.4 1023.8 1022.3 1025.2 1017.9 1982 1024.5 1025.7 ****** 1016.3 1017.5 1011.4 1007.3 1010.9 1017.6 1021.4 1027.1 1028.0 ****** 1983 1025.5 1022.6 1021.7 1017.5 1012.9 1010.9 1006.6 1008.7 1014.6 1022.4 1024.1 1028.0 1017.9 1984 1025.9 1031.7 1019.8 1014.9 1014.8 1010.8 1007.1 1007.1 1016.4 1023.4 1023.4 1031.5 1018.9 1985 1025.0 1016.6 1025.5 1015.1 1014.2 1007.6 1005.2 1009.0 1010.6 1018.1 1020.6 1021.2 1015.7 1986 1021.5 1018.3 1021.7 1015.8 1010.5 1005.2 1006.4 1009.1 1013.3 ****** 1025.2 1023.3 ****** 1987 1022.1 ****** 1013.6 1015.0 1009.3 1007.3 ****** ****** ****** ****** ****** ****** ****** 1988 1022.2 1020.9 1013.6 1014.4 1011.6 1004.0 1003.5 1006.0 1011.7 1017.8 1018.4 1018.0 1013.5 1989 1024.5 1026.6 1014.5 1014.9 1012.5 1006.1 ****** ****** 1006.5 ****** 1019.9 1018.9 ****** 1990 1023.0 1018.8 1020.5 1012.7 1010.8 1004.9 1004.6 1006.4 1008.7 1017.8 1020.4 1023.7 1014.4 1991 1022.3 1021.9 1017.5 1013.3 1009.9 1007.4 1003.0 1005.6 1012.2 1017.7 1022.3 1018.6 1014.3 1992 1021.7 1016.5 1018.9 1013.7 1014.0 1006.1 1004.7 1009.9 1013.2 1016.8 1019.3 1020.3 1014.6 1993 1023.6 1021.7 1018.1 1012.3 1011.0 1007.3 1006.4 1007.9 1010.1 1021.6 1022.0 1023.8 1015.5 1994 1020.8 1020.3 1016.6 1014.6 1010.7 1006.4 1003.3 1004.7 1016.3 1019.9 1016.2 1022.5 1014.4 1995 1022.4 1020.2 1017.2 1012.1 1012.3 1005.8 1002.0 1004.4 1009.8 1019.1 1017.8 1024.0 1013.9 1996 1024.2 1020.4 1016.6 1015.4 1011.4 1007.5 1006.0 1006.8 1007.2 1017.1 1024.9 1021.9 1015.0 1997 1019.1 1022.9 1015.2 1011.1 1012.1 1005.6 1002.3 1005.1 1011.8 1015.0 1021.3 1020.0 1013.5 1998 1020.4 1021.0 1015.1 1012.1 1012.1 1008.3 1003.9 1007.2 1010.5 1017.8 1019.7 1023.4 1014.3 1999 1022.2 1016.1 1016.5 1014.8 1011.8 1005.6 1004.6 1005.4 1009.9 1015.6 1021.0 1023.9 1014.0 2000 1019.5 1020.8 1016.9 1010.7 1008.7 1006.8 1005.7 1006.1 1009.3 1018.5 1024.0 1021.0 1014.0 2001 1024.9 1018.9 1016.1 1012.2 1007.9 1005.6 1004.9 1006.3 1010.4 1016.6 1018.4 1020.9 1013.6 2002 1021.2 1020.5 1015.7 1011.4 1011.0 1005.9 1005.9 1004.0 1010.2 1014.6 1021.0 1022.9 1013.7 2003 1021.1 1016.4 1017.1 1015.3 1013.6 1007.2 1002.5 1007.1 1011.0 1013.2 1021.6 1023.4 1014.1 2004 1016.6 1016.9 1019.2 1013.9 1008.6 1006.4 1006.3 1004.6 1012.5 1018.9 1017.2 1021.9 1013.6 2005 1020.1 1019.9 1014.2 1015.4 1011.3 1006.3 1003.5 1006.0 1009.2 1017.2 1021.8 1022.6 1013.9 MEAN 1022.5 1021.0 1017.6 1014.1 1012.0 1007.3 1005.1 1007.1 1012.0 1018.5 1021.5 1022.9 1015.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 137 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF COMPUTED QFF PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1025.1 1029.5 1036.0 1034.5 ****** DAY ** ** ** ** ** ** ** ** 23 9 19 22 1980 1035.2 1038.1 1029.6 1026.6 1026.0 1020.2 1014.8 1022.4 1024.1 1026.7 1031.1 1034.2 1038.1 DAY 31 2 27 1 16 11 11 30 25 21 2 16 1981 1034.9 1030.4 1029.7 1026.1 1027.4 1019.7 1015.5 1015.4 1027.2 1032.3 1031.4 1033.4 1034.9 DAY 8 28 8 2 21 10 23 31 23 28 15 1 1982 1040.3 1035.9 ****** 1030.0 1030.2 1018.5 1016.0 1016.5 1024.9 1036.3 1034.0 1041.7 ****** DAY 21 11 ** 4 9 6 7 15 20 25 17 9 1983 1041.9 1031.8 1031.2 1025.5 1021.4 1018.3 1013.9 1015.9 1021.8 1029.9 1037.5 1035.8 1041.9 DAY 7 10 14 29 31 1 1 31 27 28 26 18 1984 1036.1 1043.4 1030.5 1026.8 1021.4 1019.5 1014.1 1013.7 1022.9 1035.9 1037.5 1042.2 1043.4 DAY 4 18 9 4 11 15 3 30 30 21 30 18 1985 1032.5 1031.3 1043.9 1034.7 1023.4 1016.6 1010.7 1014.5 1020.4 1030.3 1028.4 1034.1 1043.9 DAY 14 23 5 16 12 9 16 30 22 31 17 8 1986 1035.0 1026.5 1029.6 1026.4 1021.7 1013.5 1012.8 1014.2 1017.6 ****** 1032.8 1035.8 ****** DAY 28 13 16 4 17 2 21 31 30 ** 15 10 1987 1033.2 ****** 1029.2 1024.6 1017.2 1014.3 ****** ****** ****** ****** ****** ****** ****** DAY 20 ** 22 6 6 5 ** ** ** ** ** ** 1988 1031.9 1037.1 1023.8 1030.7 1023.9 1011.0 1008.5 1013.0 1019.9 1027.8 1027.0 1029.4 1037.1 DAY 10 7 25 8 4 7 27 21 21 16 5 29 1989 1035.7 1037.6 1023.1 1021.9 1020.4 1013.6 ****** ****** 1015.9 ****** 1028.9 1025.8 ****** DAY 28 3 12 1 1 1 ** ** 19 ** 8 18 1990 1033.6 1032.5 1034.4 1021.8 1020.9 1012.4 1010.7 1012.1 1014.0 1033.9 1029.7 1037.7 1037.7 DAY 26 7 16 23 15 7 31 29 23 15 23 30 1991 1031.3 1034.1 1027.4 1023.5 1018.5 1014.5 1012.0 1011.9 1021.1 1023.4 1029.0 1029.1 1034.1 DAY 12 13 12 14 4 17 11 27 27 12 24 17 1992 1036.7 1027.3 1032.1 1022.2 1026.9 1014.4 1013.3 1020.3 1021.2 1024.2 1030.9 1029.5 1036.7 DAY 9 16 12 30 2 6 12 31 29 29 17 2 1993 1037.2 1032.7 1029.6 1022.6 1023.6 1021.8 1012.1 1012.1 1019.6 1028.7 1031.9 1032.3 1037.2 DAY 6 9 16 23 9 22 27 24 22 7 30 6 1994 1034.5 1033.8 1024.8 1031.2 1021.2 1011.8 1009.9 1010.8 1023.6 1025.8 1022.7 1034.1 1034.5 DAY 9 18 24 4 18 5 1 6 22 24 2 7 1995 1032.6 1028.0 1029.3 1021.7 1019.7 1012.8 1007.5 1011.4 1019.5 1034.7 1030.7 1035.3 1035.3 DAY 7 17 5 6 26 23 24 24 27 17 15 10 1996 1037.8 1031.2 1023.6 1029.1 1018.5 1015.7 1013.9 1018.5 1017.3 1027.2 1038.6 1034.8 1038.6 DAY 10 3 16 4 26 11 3 29 24 18 18 7 1997 1030.8 1032.9 1032.5 1021.3 1020.4 1013.9 1009.4 1010.7 1018.1 1023.2 1034.3 1031.8 1034.3 DAY 23 7 11 13 15 6 19 24 7 8 7 28 1998 1029.3 1037.5 1026.5 1021.5 1022.8 1013.4 1011.2 1011.5 1019.8 1032.3 1028.5 1032.8 1037.5 DAY 3 22 26 1 2 5 15 9 12 9 20 29 1999 1039.9 1026.7 1029.1 1023.5 1018.9 1015.7 1009.8 1012.3 1019.0 1024.9 1034.9 1033.1 1039.9 DAY 2 11 18 22 11 16 27 19 23 26 30 24 2000 1030.2 1029.7 1027.8 1020.7 1016.0 1017.7 1010.7 1011.9 1017.4 1026.7 1035.1 1029.4 1035.1 DAY 14 10 15 1 10 13 25 8 25 15 16 4 2001 1032.0 1034.9 1030.5 1027.9 1017.8 1015.5 1008.3 1012.4 1020.1 1027.9 1025.8 1030.8 1034.9 DAY 25 9 11 1 18 1 30 11 21 27 19 21 2002 1030.2 1033.8 1036.3 1020.3 1020.1 1015.0 1012.7 1011.8 1016.6 1019.7 1031.5 1038.3 1038.3 DAY 25 18 10 26 16 24 1 31 29 31 18 3 2003 1029.2 1029.9 1034.1 1026.8 1029.4 1019.9 1010.9 1010.6 1021.4 1020.5 1034.0 1040.4 1040.4 DAY 22 12 2 30 1 6 3 30 26 15 25 11 2004 1024.7 1022.3 1033.8 1024.7 1018.6 1017.6 1012.3 1009.7 1018.5 1027.0 1028.4 1034.6 1034.6 DAY 1 4 8 5 21 13 7 17 29 14 28 3 2005 1029.6 1031.1 1025.2 1035.3 1018.9 1014.7 1008.5 1012.6 1014.5 1028.9 1028.5 1035.5 1035.5 DAY 9 17 26 5 11 8 8 29 7 23 27 29 1977-2005 1041.9 1043.4 1043.9 1035.3 1030.2 1021.8 1016.0 1022.4 1027.2 1036.3 1038.6 1042.2 1043.9 YEAR-DAY 83- 7 84-18 85- 5 5- 5 82- 9 93-22 82- 7 80-30 81-23 82-25 96-18 84-18 85- 5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 138 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF COMPUTED QFF PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** 1010.7 1008.2 1005.1 1011.3 ****** DAY ** ** ** ** ** ** ** ** 5 4 29 1 1980 1010.8 1014.3 1003.1 1004.3 1005.9 1003.1 1002.8 1003.5 1009.7 1009.5 1011.4 1010.6 1002.8 DAY 6 18 2 26 23 16 30 19 13 4 9 11 1981 1012.1 1013.5 1003.3 999.7 1004.7 1004.0 1001.2 1005.2 1009.9 1015.0 1007.9 1013.8 999.7 DAY 3 9 12 30 15 4 1 13 12 16 5 18 1982 1011.4 1015.9 ****** 1004.2 1009.6 1005.1 1000.9 1004.3 1010.8 1011.4 1016.5 1018.2 ****** DAY 8 14 ** 18 14 11 31 3 13 5 7 28 1983 1001.6 1009.8 1006.3 1011.9 1006.8 1004.1 1000.3 1003.1 1007.2 1009.8 1013.8 1014.8 1000.3 DAY 24 17 5 17 4 7 19 15 8 4 12 11 1984 1018.3 1011.3 1008.2 1007.8 1002.9 1000.3 1002.8 1001.7 1009.6 1009.1 1011.1 1016.4 1000.3 DAY 8 8 12 24 28 20 15 15 8 17 12 14 1985 1011.4 1003.0 1006.4 1008.4 1007.9 1001.0 999.1 1003.1 1004.0 1008.4 1014.5 1002.3 999.1 DAY 2 5 24 24 3 20 19 7 6 10 7 19 1986 1006.8 1007.6 1014.2 1007.0 1001.2 999.6 1001.9 1004.0 1008.3 ****** 1009.7 1008.7 ****** DAY 19 6 9 30 10 17 9 22 25 ** 30 20 1987 1009.4 ****** 1000.3 997.4 1001.0 1001.6 ****** ****** ****** ****** ****** ****** ****** DAY 2 ** 19 19 22 18 ** ** ** ** ** ** 1988 1010.0 1007.1 999.7 1005.1 1000.4 994.5 998.0 998.3 1004.9 1007.9 1009.7 1003.2 994.5 DAY 31 1 4 23 28 15 15 29 5 30 19 26 1989 1014.0 1014.6 1002.3 1007.7 1002.6 998.8 ****** ****** 1001.7 ****** 1011.2 1012.2 ****** DAY 2 22 27 28 7 10 ** ** 13 ** 15 8 1990 1012.2 1000.4 1009.4 1003.2 998.9 996.7 997.9 1000.4 1002.7 1009.7 1011.0 1013.4 996.7 DAY 4 15 11 15 12 26 27 7 13 31 8 17 1991 1011.4 1008.5 1003.5 997.8 1000.1 997.0 991.5 999.8 1003.9 1011.1 1012.4 1005.4 991.5 DAY 4 4 6 4 22 11 7 11 19 4 4 1 1992 1010.1 1002.6 1001.2 1005.9 1004.4 998.9 999.3 1001.9 1004.2 1010.4 1004.7 1013.6 998.9 DAY 16 24 30 22 9 27 9 24 17 13 25 13 1993 1008.6 1011.4 1005.8 999.5 1005.9 1001.0 1000.6 1000.4 1001.2 1007.3 1004.4 1015.6 999.5 DAY 8 21 21 20 31 16 24 12 13 1 10 4 1994 1007.1 1006.7 999.8 1005.8 1003.7 998.8 997.2 998.5 1008.0 1011.7 1006.0 1002.9 997.2 DAY 16 1 7 25 13 15 30 1 2 14 17 3 1995 1012.7 1005.2 1002.0 1003.9 1005.2 996.0 995.0 997.5 1003.6 1008.9 1003.2 1016.7 995.0 DAY 16 8 25 19 6 30 16 22 19 3 11 25 1996 1006.6 1007.6 1007.1 1002.9 1003.6 1000.3 1000.1 999.3 998.4 1005.0 1016.1 1009.7 998.4 DAY 6 1 2 18 29 1 6 8 8 27 6 29 1997 1009.4 1010.7 1000.6 998.2 998.3 1000.7 998.4 996.7 999.8 1007.7 1012.5 1005.2 996.7 DAY 16 22 25 9 4 26 15 14 2 6 4 9 1998 1004.0 1005.4 995.6 1000.4 999.4 1003.1 992.3 1003.1 1002.9 1003.2 1010.9 1015.2 992.3 DAY 13 13 18 21 21 24 5 23 2 1 1 30 1999 1007.7 997.9 1007.0 1005.3 1004.7 994.6 998.6 1000.2 1002.0 1008.7 1009.8 1011.4 994.6 DAY 9 20 21 8 18 25 22 6 15 18 19 14 2000 1005.6 1011.4 1002.5 1003.7 999.0 1001.4 999.1 998.0 999.7 1012.9 1016.7 1012.2 998.0 DAY 21 6 24 10 26 5 8 3 1 11 6 11 2001 1018.5 1000.1 1001.7 999.3 999.7 994.5 997.3 997.9 1003.4 1008.3 1003.3 1008.7 994.5 DAY 4 21 24 12 9 6 9 30 4 6 17 5 2002 1005.2 1005.2 1002.0 995.1 1001.5 996.5 996.9 995.3 1004.7 1008.5 1009.3 1001.7 995.1 DAY 7 26 28 3 29 19 24 8 10 21 12 21 2003 1004.2 1000.5 998.7 1004.6 1005.1 1001.2 996.0 1004.1 1002.0 1005.2 1011.4 1009.6 996.0 DAY 28 20 26 26 29 17 8 14 6 25 1 6 2004 1003.9 995.8 1004.5 1001.0 998.3 998.7 1003.3 994.0 1003.8 1010.0 999.0 1013.9 994.0 DAY 23 15 30 23 12 17 9 12 10 2 23 9 2005 1005.5 1005.8 1003.6 1005.1 999.4 992.9 994.1 998.0 1002.6 1004.8 1013.4 1010.2 992.9 DAY 23 1 10 27 3 20 6 8 4 20 8 16 1977-2005 1001.6 995.8 995.6 995.1 998.3 992.9 991.5 994.0 998.4 1003.2 999.0 1001.7 991.5 YEAR-DAY 83-24 4-15 98-18 2- 3 97- 4 5-20 91- 7 4-12 96- 8 98- 1 4-23 2-21 91- 7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 139 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFE PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 897.6 900.1 896.9 896.8 ****** 1982 894.8 894.5 893.9 894.7 897.6 ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 898.8 898.5 ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** 893.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** 892.1 ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 893.0 895.4 896.3 891.4 ****** 1992 892.4 888.9 891.4 890.2 891.8 888.1 888.4 891.7 893.4 894.2 894.6 892.9 891.5 1993 893.5 893.0 891.7 890.0 890.5 889.1 889.5 890.6 891.7 898.0 895.1 895.7 892.4 1994 892.5 891.9 891.3 892.0 891.0 887.9 887.0 888.4 895.5 896.6 892.0 894.1 891.7 1995 894.2 892.7 891.6 889.7 892.4 888.2 886.3 888.4 890.8 895.6 893.0 895.3 891.5 1996 894.8 892.0 890.4 891.7 891.5 889.8 889.7 889.9 889.5 894.4 898.1 894.8 892.2 1997 891.6 893.2 888.8 888.9 891.7 888.2 886.7 888.8 892.6 893.6 895.6 892.7 891.0 1998 891.2 892.2 890.0 890.4 891.8 891.0 887.7 890.3 891.7 895.4 895.3 897.0 892.0 1999 893.9 890.3 890.9 891.8 891.4 888.4 887.8 889.1 891.2 893.8 894.9 896.6 891.7 2000 891.6 892.5 891.0 890.3 889.9 889.0 889.2 889.6 891.1 895.6 897.3 894.1 891.8 2001 895.9 891.8 891.4 890.7 889.0 888.3 888.5 889.8 891.7 894.5 893.6 894.5 891.6 2002 893.4 892.7 891.2 888.6 890.2 888.3 889.1 888.2 892.3 894.1 895.8 893.4 891.4 2003 892.7 889.4 890.9 891.7 892.2 888.9 886.5 890.1 891.9 892.6 895.4 895.4 891.5 2004 889.7 890.9 893.7 890.7 889.0 889.0 888.9 888.2 893.4 896.2 893.0 893.6 891.4 2005 891.6 891.8 889.8 893.0 891.2 888.8 888.1 889.1 891.4 895.5 895.8 895.6 891.8 MEAN 892.9 891.9 891.3 891.0 891.4 888.8 888.1 889.4 892.4 895.6 895.4 894.6 891.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 140 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFE PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 902.4 906.6 904.6 904.5 ****** DAY ** ** ** ** ** ** ** ** 27 28 15 1 1982 903.9 902.8 902.1 904.1 906.2 ****** ****** ****** ****** ****** ****** ****** ****** DAY 21 10 5 3 9 ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 905.3 908.0 ****** ****** DAY ** ** ** ** ** ** ** ** ** 28 4 ** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1986 ****** ****** 899.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 2 ** ** ** ** ** ** ** ** ** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1988 ****** ****** ****** ****** 898.6 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 4 ** ** ** ** ** ** ** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 898.5 899.7 899.9 900.5 ****** DAY ** ** ** ** ** ** ** ** 15 12 22 16 1992 903.0 897.0 899.7 896.7 898.7 894.3 893.2 897.3 898.4 900.4 904.5 900.3 904.5 DAY 9 15 12 30 2 6 12 31 29 29 3 2 1993 903.6 902.0 899.8 895.4 897.7 899.0 894.0 895.2 898.9 902.7 902.6 900.4 903.6 DAY 6 9 16 24 9 22 27 28 22 16 21 26 1994 903.6 902.4 897.0 901.7 897.7 891.6 890.5 891.6 901.5 900.9 898.5 902.1 903.6 DAY 9 17 31 4 18 8 1 7 22 23 2 21 1995 903.5 898.3 900.4 895.7 896.5 892.7 889.6 893.6 896.2 905.7 902.4 903.0 905.7 DAY 6 17 2 6 26 1 3 24 21 17 15 10 1996 904.9 897.7 894.8 900.4 895.7 895.5 896.1 897.7 898.4 904.0 907.6 903.0 907.6 DAY 9 12 28 4 7 11 3 29 30 1 18 7 1997 901.6 899.3 902.3 895.3 897.2 893.6 891.7 893.0 897.7 899.7 906.7 900.6 906.7 DAY 23 7 10 13 11 7 19 21 18 8 7 28 1998 899.2 906.0 898.8 899.5 898.7 895.2 893.5 893.3 897.3 904.6 903.8 903.6 906.0 DAY 3 22 26 11 8 5 19 18 12 9 20 11 1999 905.1 899.5 897.9 898.2 895.9 896.0 892.2 894.8 896.3 899.2 904.5 904.5 905.1 DAY 1 11 18 22 8 16 18 19 23 13 30 10 2000 899.4 900.5 900.8 896.2 897.0 894.5 894.1 894.7 895.7 901.3 906.3 900.9 906.3 DAY 14 29 26 1 4 15 30 7 25 15 16 9 2001 900.9 904.3 901.0 901.4 895.6 895.2 891.4 894.4 897.6 902.4 898.4 900.5 904.3 DAY 25 9 1 1 17 1 28 5 19 10 4 9 2002 900.3 903.1 904.3 895.2 897.2 895.6 893.1 893.7 896.9 898.0 903.0 905.3 905.3 DAY 27 18 10 26 16 24 2 29 29 10 17 2 2003 898.8 899.7 901.0 899.4 901.2 894.8 892.5 892.7 899.1 898.8 903.7 907.0 907.0 DAY 18 12 2 30 1 6 3 30 26 15 25 11 2004 896.9 895.4 905.2 897.9 896.2 895.9 893.2 892.2 897.5 902.4 899.7 902.8 905.2 DAY 11 9 8 10 21 5 7 17 20 14 28 3 2005 899.6 900.2 895.4 904.7 896.7 893.4 891.6 893.2 895.3 902.6 901.1 904.5 904.7 DAY 7 16 26 5 18 8 8 26 7 26 23 28 1977-2005 905.1 906.0 905.2 904.7 906.2 899.0 896.1 897.7 902.4 906.6 908.0 907.0 908.0 YEAR-DAY 99- 1 98-22 4- 8 5- 5 82- 9 93-22 96- 3 96-29 81-27 81-28 83- 4 3-11 83- 4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 141 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFE PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 892.9 894.6 890.0 888.2 ****** DAY ** ** ** ** ** ** ** ** 16 15 5 18 1982 884.2 885.3 885.3 885.9 890.9 ****** ****** ****** ****** ****** ****** ****** ****** DAY 31 4 2 18 14 ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 891.4 891.8 ****** ****** DAY ** ** ** ** ** ** ** ** ** 4 12 ** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1986 ****** ****** 886.5 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 9 ** ** ** ** ** ** ** ** ** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1988 ****** ****** ****** ****** 886.6 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 11 ** ** ** ** ** ** ** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 885.7 891.2 889.7 882.7 ****** DAY ** ** ** ** ** ** ** ** 19 4 4 31 1992 882.8 880.5 879.3 884.6 884.6 883.1 883.9 886.6 887.6 888.7 884.7 888.1 879.3 DAY 30 24 30 22 9 27 9 18 17 24 25 30 1993 881.2 886.8 881.5 881.5 886.8 884.9 884.7 885.1 885.4 887.7 883.7 888.2 881.2 DAY 8 6 21 20 6 16 24 12 13 28 13 4 1994 881.0 883.8 882.0 882.6 884.5 882.9 882.9 883.3 891.2 889.6 882.9 878.1 878.1 DAY 16 8 7 30 1 15 30 1 2 14 25 3 1995 887.5 885.0 879.3 884.5 887.5 881.7 881.6 882.9 886.5 889.1 880.1 890.2 879.3 DAY 11 8 25 19 6 29 15 22 19 3 25 25 1996 883.3 882.3 883.4 883.6 886.5 885.3 885.1 884.8 882.1 885.8 891.8 885.7 882.1 DAY 6 5 25 18 29 4 6 8 8 26 1 24 1997 883.5 886.1 878.6 877.2 881.4 884.1 882.5 883.3 884.2 888.2 891.2 883.2 877.2 DAY 31 22 25 9 4 30 15 14 1 6 4 9 1998 878.2 877.8 877.4 882.7 882.7 888.0 878.2 887.4 887.1 885.7 889.1 887.8 877.4 DAY 13 13 18 21 21 27 5 16 2 1 10 20 1999 885.3 876.7 884.4 883.5 885.8 879.0 884.3 885.8 886.3 890.6 887.7 888.0 876.7 DAY 9 20 21 13 19 24 22 6 12 18 25 15 2000 881.1 883.6 881.8 886.8 883.4 884.9 884.0 884.0 884.1 891.1 892.0 885.9 881.1 DAY 20 6 24 29 26 5 10 3 1 17 21 15 2001 891.7 879.0 882.2 881.5 882.0 880.5 883.1 882.8 886.8 887.4 883.6 887.3 879.0 DAY 4 21 24 12 8 6 18 30 4 24 17 5 2002 883.9 882.3 881.0 876.2 885.0 880.6 882.0 882.5 887.7 888.0 888.1 878.9 876.2 DAY 7 26 28 3 29 19 24 15 10 21 11 21 2003 877.8 879.8 880.4 885.8 886.1 883.9 882.1 887.2 884.7 885.7 888.3 885.9 877.8 DAY 28 20 26 26 29 30 8 26 6 25 20 6 2004 880.6 877.8 884.1 882.8 880.6 884.1 886.1 881.3 886.8 889.2 880.9 885.1 877.8 DAY 23 15 30 17 12 17 9 12 10 21 23 9 2005 880.8 882.8 882.7 886.5 882.5 878.9 880.9 884.0 886.8 886.5 889.2 885.1 878.9 DAY 23 1 23 29 5 20 5 7 4 20 8 23 1977-2005 877.8 876.7 877.4 876.2 880.6 878.9 878.2 881.3 882.1 885.7 880.1 878.1 876.2 YEAR-DAY 3-28 99-20 98-18 2- 3 4-12 5-20 98- 5 4-12 96- 8 98- 1 95-25 94- 3 2- 3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 142 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QNH PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1022.7 1025.4 1021.9 1021.8 ****** 1982 1019.5 1019.2 1018.6 1019.5 1022.6 ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.0 1023.7 ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** 1018.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** 1016.6 ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1017.6 1020.2 1021.2 1015.8 ****** 1992 1016.9 1013.0 1015.8 1014.4 1016.3 1012.2 1012.5 1016.1 1018.0 1018.8 1019.4 1017.4 1015.9 1993 1018.1 1017.5 1016.1 1014.2 1014.8 1013.3 1013.6 1014.9 1016.1 1023.1 1019.9 1020.5 1016.8 1994 1017.0 1016.4 1015.7 1016.4 1015.3 1011.9 1010.9 1012.4 1020.3 1021.5 1016.4 1018.8 1016.1 1995 1018.9 1017.2 1016.0 1013.9 1016.8 1012.2 1010.1 1012.4 1015.1 1020.5 1017.6 1020.1 1015.9 1996 1019.6 1016.5 1014.6 1016.2 1015.9 1014.0 1013.9 1014.2 1013.6 1019.1 1023.3 1019.6 1016.7 1997 1016.0 1017.8 1012.8 1013.0 1016.1 1012.2 1010.5 1012.9 1017.2 1018.2 1020.4 1017.3 1015.4 1998 1015.6 1016.6 1014.2 1014.7 1016.2 1015.3 1011.7 1014.6 1016.1 1020.2 1020.2 1022.0 1016.4 1999 1018.6 1014.6 1015.3 1016.3 1015.8 1012.5 1011.7 1013.3 1015.6 1018.5 1019.7 1021.6 1016.1 2000 1016.0 1017.0 1015.3 1014.6 1014.1 1013.1 1013.3 1013.8 1015.4 1020.5 1022.3 1018.8 1016.2 2001 1020.7 1016.3 1015.8 1015.0 1013.1 1012.3 1012.5 1014.0 1016.1 1019.3 1018.2 1019.2 1016.0 2002 1018.0 1017.3 1015.5 1012.6 1014.4 1012.3 1013.2 1012.2 1016.8 1018.8 1020.6 1018.0 1015.8 2003 1017.3 1013.6 1015.2 1016.1 1016.7 1013.0 1010.3 1014.3 1016.4 1017.2 1020.2 1020.2 1015.9 2004 1013.9 1015.3 1018.4 1015.0 1013.1 1013.1 1013.0 1012.2 1018.0 1021.1 1017.6 1018.2 1015.7 2005 1016.0 1016.2 1014.0 1017.5 1015.5 1012.9 1012.1 1013.2 1015.7 1020.3 1020.6 1020.5 1016.2 MEAN 1017.5 1016.3 1015.7 1015.3 1015.8 1012.9 1012.1 1013.6 1016.9 1020.4 1020.2 1019.4 1016.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 143 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QNH PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1028.0 1032.7 1030.5 1030.3 ****** DAY ** ** ** ** ** ** ** ** 27 28 15 1 1982 1029.7 1028.5 1027.7 1029.9 1032.2 ****** ****** ****** ****** ****** ****** ****** ****** DAY 21 10 5 3 9 ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1031.2 1034.2 ****** ****** DAY ** ** ** ** ** ** ** ** ** 28 4 ** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1986 ****** ****** 1025.1 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 2 ** ** ** ** ** ** ** ** ** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1988 ****** ****** ****** ****** 1023.8 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 4 ** ** ** ** ** ** ** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1023.7 1025.0 1025.2 1025.9 ****** DAY ** ** ** ** ** ** ** ** 15 12 22 16 1992 1028.7 1022.0 1025.0 1021.7 1023.9 1019.0 1017.8 1022.3 1023.6 1025.8 1030.3 1025.7 1030.3 DAY 9 15 12 30 2 6 12 31 29 29 3 2 1993 1029.3 1027.6 1025.1 1020.2 1022.8 1024.2 1018.7 1020.0 1024.1 1028.3 1028.2 1025.8 1029.3 DAY 6 9 16 24 9 22 27 28 22 16 21 26 1994 1029.3 1028.0 1022.0 1027.2 1022.8 1016.0 1014.8 1016.0 1027.0 1026.3 1023.7 1027.7 1029.3 DAY 9 17 31 4 18 8 1 7 22 23 2 21 1995 1029.2 1023.5 1025.8 1020.6 1021.5 1017.2 1013.8 1018.2 1021.1 1031.7 1028.0 1028.7 1031.7 DAY 6 17 2 6 26 1 3 24 21 17 15 10 1996 1030.8 1022.8 1019.6 1025.8 1020.6 1020.3 1021.0 1022.8 1023.6 1029.8 1033.8 1028.7 1033.8 DAY 9 12 28 4 7 11 3 29 30 1 18 7 1997 1027.1 1024.6 1027.9 1020.1 1022.2 1018.2 1016.1 1017.6 1022.8 1025.0 1032.8 1026.0 1032.8 DAY 23 7 10 13 11 7 19 21 18 8 7 28 1998 1024.5 1032.0 1024.0 1024.8 1023.9 1020.0 1018.1 1017.9 1022.3 1030.5 1029.6 1029.3 1032.0 DAY 3 22 26 11 8 5 19 18 12 9 20 11 1999 1031.0 1024.8 1023.0 1023.3 1020.8 1020.9 1016.7 1019.6 1021.2 1024.5 1030.3 1030.3 1031.0 DAY 1 11 18 22 8 16 18 19 23 13 30 10 2000 1024.7 1025.9 1026.2 1021.1 1022.0 1019.2 1018.8 1019.4 1020.6 1026.8 1032.3 1026.3 1032.3 DAY 14 29 26 1 4 15 30 7 25 15 16 9 2001 1026.3 1030.1 1026.5 1026.9 1020.5 1020.0 1015.8 1019.1 1022.7 1028.0 1023.6 1025.9 1030.1 DAY 25 9 1 1 17 1 28 5 19 10 4 9 2002 1025.7 1028.8 1030.1 1020.0 1022.2 1020.5 1017.7 1018.3 1021.9 1023.1 1028.7 1031.2 1031.2 DAY 27 18 10 26 16 24 2 29 29 10 17 2 2003 1024.0 1025.0 1026.5 1024.7 1026.7 1019.6 1017.0 1017.2 1024.3 1024.0 1029.5 1033.1 1033.1 DAY 18 12 2 30 1 6 3 30 26 15 25 11 2004 1021.9 1020.2 1031.1 1023.0 1021.1 1020.8 1017.8 1016.7 1022.6 1028.0 1025.0 1028.5 1031.1 DAY 11 9 8 10 21 5 7 17 20 14 28 3 2005 1024.9 1025.6 1020.2 1030.6 1021.7 1018.0 1016.0 1017.8 1020.1 1028.2 1026.6 1030.3 1030.6 DAY 7 16 26 5 18 8 8 26 7 26 23 28 1977-2005 1031.0 1032.0 1031.1 1030.6 1032.2 1024.2 1021.0 1022.8 1028.0 1032.7 1034.2 1033.1 1034.2 YEAR-DAY 99- 1 98-22 4- 8 5- 5 82- 9 93-22 96- 3 96-29 81-27 81-28 83- 4 3-11 83- 4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 144 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QNH PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1017.4 1019.3 1014.2 1012.2 ****** DAY ** ** ** ** ** ** ** ** 16 15 5 18 1982 1007.8 1009.0 1009.0 1009.7 1015.2 ****** ****** ****** ****** ****** ****** ****** ****** DAY 31 4 2 18 14 ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1015.8 1016.2 ****** ****** DAY ** ** ** ** ** ** ** ** ** 4 12 ** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1986 ****** ****** 1010.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 9 ** ** ** ** ** ** ** ** ** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1988 ****** ****** ****** ****** 1010.4 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 11 ** ** ** ** ** ** ** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1009.4 1015.6 1013.9 1006.1 ****** DAY ** ** ** ** ** ** ** ** 19 4 4 31 1992 1006.2 1003.7 1002.3 1008.2 1008.2 1006.6 1007.4 1010.4 1011.6 1012.8 1008.3 1012.1 1002.3 DAY 30 24 30 22 9 27 9 18 17 24 25 30 1993 1004.4 1010.7 1004.8 1004.8 1010.7 1008.6 1008.3 1008.8 1009.1 1011.7 1007.2 1012.2 1004.4 DAY 8 6 21 20 6 16 24 12 13 28 13 4 1994 1004.2 1007.3 1005.3 1006.0 1008.1 1006.3 1006.3 1006.8 1015.6 1013.8 1006.3 1001.0 1001.0 DAY 16 8 7 30 1 15 30 1 2 14 25 3 1995 1011.4 1008.7 1002.3 1008.1 1011.4 1005.0 1004.9 1006.3 1010.3 1013.2 1003.2 1014.4 1002.3 DAY 11 8 25 19 6 29 15 22 19 3 25 25 1996 1006.8 1005.7 1006.9 1007.1 1010.3 1009.0 1008.8 1008.4 1005.4 1009.6 1016.2 1009.4 1005.4 DAY 6 5 25 18 29 4 6 8 8 26 1 24 1997 1007.0 1009.9 1001.5 1000.0 1004.7 1007.7 1005.9 1006.8 1007.8 1012.2 1015.6 1006.7 1000.0 DAY 31 22 25 9 4 30 15 14 1 6 4 9 1998 1001.1 1000.7 1000.2 1006.1 1006.1 1012.0 1001.1 1011.3 1011.0 1009.4 1013.2 1011.8 1000.2 DAY 13 13 18 21 21 27 5 16 2 1 10 20 1999 1009.0 999.4 1008.0 1007.0 1009.6 1002.0 1007.9 1009.6 1010.1 1014.9 1011.7 1012.0 999.4 DAY 9 20 21 13 19 24 22 6 12 18 25 15 2000 1004.3 1007.1 1005.1 1010.7 1006.9 1008.6 1007.6 1007.6 1007.7 1015.4 1016.4 1009.7 1004.3 DAY 20 6 24 29 26 5 10 3 1 17 21 15 2001 1016.1 1002.0 1005.6 1004.8 1005.3 1003.7 1006.6 1006.2 1010.7 1011.3 1007.1 1011.2 1002.0 DAY 4 21 24 12 8 6 18 30 4 24 17 5 2002 1007.4 1005.7 1004.2 998.9 1008.7 1003.8 1005.3 1005.9 1011.7 1012.0 1012.1 1001.9 998.9 DAY 7 26 28 3 29 19 24 15 10 21 11 21 2003 1000.7 1002.9 1003.5 1009.6 1009.9 1007.4 1005.4 1011.1 1008.3 1009.4 1012.3 1009.7 1000.7 DAY 28 20 26 26 29 30 8 26 6 25 20 6 2004 1003.8 1000.7 1007.7 1006.2 1003.8 1007.7 1009.9 1004.5 1010.7 1013.3 1004.1 1008.8 1000.7 DAY 23 15 30 17 12 17 9 12 10 21 23 9 2005 1004.0 1006.2 1006.1 1010.3 1005.9 1001.9 1004.1 1007.6 1010.7 1010.3 1013.3 1008.8 1001.9 DAY 23 1 23 29 5 20 5 7 4 20 8 23 1977-2005 1000.7 999.4 1000.2 998.9 1003.8 1001.9 1001.1 1004.5 1005.4 1009.4 1003.2 1001.0 998.9 YEAR-DAY 3-28 99-20 98-18 2- 3 4-12 5-20 98- 5 4-12 96- 8 98- 1 95-25 94- 3 2- 3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 145 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF QFF PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1016.2 1022.2 1020.7 1023.2 ****** 1982 1023.4 1023.1 1019.6 1014.7 1016.9 ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.6 1021.4 ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** 1014.2 ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1013.3 1018.3 1022.8 1018.5 ****** 1992 1022.0 1016.6 1019.2 1014.0 1014.7 1006.9 1005.9 1011.2 1014.2 1017.5 1019.6 1020.7 1015.2 1993 1023.6 1021.7 1018.1 1012.9 1011.7 1008.0 1007.3 1008.8 1011.1 1022.4 1022.6 1024.0 1016.0 1994 1021.1 1021.0 1017.0 1015.2 1011.5 1006.8 1004.3 1005.9 1017.0 1020.5 1016.4 1022.9 1015.0 1995 1022.4 1020.7 1017.4 1012.3 1013.1 1006.6 1003.0 1005.4 1010.7 1019.6 1018.1 1024.2 1014.5 1996 1024.1 1020.5 1017.0 1015.9 1012.2 1008.7 1006.3 1006.5 1006.7 1016.4 1024.1 1020.7 1014.9 1997 1018.5 1022.0 1014.1 1010.2 1011.5 1004.9 1001.7 1004.6 1011.2 1014.2 1020.5 1019.1 1012.7 1998 1019.5 1020.2 1014.5 1011.3 1013.0 1009.3 1004.9 1008.0 1011.3 1018.5 1020.1 1024.0 1014.5 1999 1022.6 1016.0 1016.9 1015.4 1012.7 1006.6 1005.6 1006.2 1010.9 1016.3 1021.7 1024.2 1014.6 2000 1019.8 1021.0 1016.8 1011.3 1009.4 1007.6 1006.7 1007.0 1009.0 1018.1 1023.4 1020.4 1014.2 2001 1024.2 1017.8 1015.3 1011.3 1007.4 1006.5 1004.7 1005.8 1009.9 1016.1 1017.5 1020.0 1013.0 2002 1020.4 1019.6 1014.8 1010.6 1010.4 1005.7 1005.3 1003.7 1009.7 1014.0 1020.4 1021.9 1013.0 2003 1019.8 1015.6 1016.5 1014.4 1013.0 1006.9 1002.1 1006.6 1010.6 1012.5 1020.6 1022.6 1013.4 2004 1015.7 1016.0 1018.2 1013.2 1008.1 1006.0 1005.6 1004.1 1011.9 1018.3 1016.5 1021.2 1012.9 2005 1019.2 1019.1 1013.5 1014.8 1010.6 1005.9 1003.1 1005.6 1008.7 1016.5 1021.0 1021.6 1013.3 MEAN 1021.1 1019.4 1016.6 1013.2 1011.9 1006.9 1004.8 1006.4 1011.4 1017.8 1020.4 1021.8 1014.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 146 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF QFF PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1025.0 1029.9 1030.1 1031.9 ****** DAY ** ** ** ** ** ** ** ** 23 28 15 1 1982 1038.2 1033.3 1031.6 1029.3 1029.9 ****** ****** ****** ****** ****** ****** ****** ****** DAY 21 10 5 3 9 ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1027.4 1034.1 ****** ****** DAY ** ** ** ** ** ** ** ** ** 28 4 ** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1988 ****** ****** ****** ****** 1024.7 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 4 ** ** ** ** ** ** ** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1022.4 1024.7 1029.1 1030.6 ****** DAY ** ** ** ** ** ** ** ** 27 12 24 16 1992 1037.2 1027.7 1033.3 1023.7 1026.9 1015.6 1014.2 1021.1 1022.6 1025.6 1032.0 1029.3 1037.2 DAY 9 16 12 30 2 6 12 30 29 29 3 2 1993 1036.5 1033.5 1030.9 1023.2 1024.0 1022.8 1012.9 1014.1 1020.9 1029.9 1032.6 1031.8 1036.5 DAY 6 16 16 23 9 22 27 23 22 7 21 6 1994 1035.2 1034.2 1024.9 1032.5 1022.9 1012.1 1010.5 1011.5 1024.2 1026.8 1023.4 1034.6 1035.2 DAY 9 18 24 4 18 5 1 6 22 23 2 7 1995 1033.6 1029.1 1030.3 1023.1 1020.4 1014.1 1008.6 1012.5 1020.2 1035.9 1030.8 1036.6 1036.6 DAY 6 11 2 6 26 23 24 24 21 17 15 10 1996 1037.9 1032.1 1023.9 1029.6 1019.7 1016.9 1014.6 1017.5 1017.8 1027.0 1037.1 1034.0 1037.9 DAY 9 3 16 4 1 11 3 29 30 18 18 7 1997 1030.0 1032.3 1032.5 1020.9 1020.6 1011.8 1008.9 1010.3 1017.9 1022.8 1034.9 1030.5 1034.9 DAY 23 7 10 12 15 4 7 21 15 8 7 28 1998 1029.3 1037.9 1025.5 1021.3 1022.6 1014.6 1012.3 1012.2 1021.4 1033.2 1029.7 1032.1 1037.9 DAY 3 22 26 11 2 5 15 18 12 9 20 29 1999 1039.6 1027.7 1029.3 1024.5 1020.7 1017.2 1013.8 1012.8 1020.6 1026.1 1036.1 1034.2 1039.6 DAY 2 11 18 22 8 16 25 19 23 25 30 5 2000 1031.6 1030.6 1029.0 1021.3 1018.6 1017.8 1012.0 1013.6 1016.8 1027.0 1035.5 1027.3 1035.5 DAY 14 29 15 1 4 13 25 8 25 15 16 9 2001 1032.2 1034.3 1029.9 1026.6 1017.0 1015.7 1009.0 1012.1 1019.9 1027.1 1026.7 1030.2 1034.3 DAY 25 9 11 1 18 1 31 11 19 27 19 21 2002 1029.6 1033.9 1036.6 1020.6 1020.4 1014.6 1012.2 1011.3 1015.3 1019.5 1030.0 1037.9 1037.9 DAY 25 18 10 26 16 24 1 31 29 22 17 3 2003 1028.4 1030.2 1033.4 1025.6 1028.7 1018.9 1010.0 1010.2 1021.8 1020.0 1032.0 1040.1 1040.1 DAY 18 12 2 30 1 6 3 30 26 15 22 11 2004 1024.7 1022.1 1033.7 1024.3 1019.2 1017.4 1011.6 1009.1 1018.0 1027.4 1029.6 1033.5 1033.7 DAY 29 4 8 5 21 13 7 17 25 14 28 3 2005 1028.2 1030.6 1025.0 1034.7 1017.2 1014.1 1007.7 1011.9 1013.6 1028.1 1027.6 1035.5 1035.5 DAY 9 16 26 5 11 8 8 29 7 23 25 28 1977-2005 1039.6 1037.9 1036.6 1034.7 1029.9 1022.8 1014.6 1021.1 1025.0 1035.9 1037.1 1040.1 1040.1 YEAR-DAY 99- 2 98-22 2-10 5- 5 82- 9 93-22 96- 3 92-30 81-23 95-17 96-18 3-11 3-11 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 147 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF QFF PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1008.8 1014.1 1009.2 1009.2 ****** DAY ** ** ** ** ** ** ** ** 12 15 5 18 1982 1008.0 1008.4 1003.6 1002.8 1009.2 ****** ****** ****** ****** ****** ****** ****** ****** DAY 31 4 18 18 14 ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1009.3 1011.8 ****** ****** DAY ** ** ** ** ** ** ** ** ** 4 12 ** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1986 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1988 ****** ****** ****** ****** 1005.8 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 11 ** ** ** ** ** ** ** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1004.2 1011.8 1012.1 999.1 ****** DAY ** ** ** ** ** ** ** ** 19 4 4 4 1992 1007.8 1000.8 1000.3 1005.3 1003.5 999.4 999.6 1002.7 1005.2 1009.9 1005.6 1014.2 999.4 DAY 2 24 30 22 9 27 9 24 25 24 25 13 1993 1009.1 1013.3 1004.6 1000.3 1006.3 1001.5 1001.5 1001.0 1001.7 1007.2 1007.4 1015.4 1000.3 DAY 8 2 21 20 31 16 24 12 3 28 10 4 1994 1006.6 1009.0 1003.8 1002.8 1004.2 999.1 997.7 999.2 1010.4 1011.7 1005.9 1000.0 997.7 DAY 16 1 7 30 1 15 30 1 2 14 25 3 1995 1011.3 1008.1 1002.3 1003.2 1005.9 996.8 995.8 998.5 1004.4 1009.4 1003.2 1017.0 995.8 DAY 16 8 25 19 2 29 15 22 19 3 25 25 1996 1005.1 1004.2 1006.0 1003.1 1004.7 1000.4 1001.1 999.0 997.0 1005.1 1015.7 1007.9 997.0 DAY 6 1 25 18 29 4 6 8 8 26 1 29 1997 1008.4 1010.5 998.7 995.8 998.2 1000.1 997.2 996.5 998.8 1005.6 1010.6 1004.3 995.8 DAY 15 22 25 9 4 22 15 14 2 6 4 9 1998 1004.1 1004.9 996.0 1000.3 999.7 1004.2 992.3 1003.9 1003.8 1003.7 1010.0 1013.8 992.3 DAY 13 7 18 21 21 26 5 16 2 1 1 20 1999 1008.0 997.1 1008.2 1006.8 1005.2 995.2 999.9 1000.8 1003.9 1009.9 1009.7 1011.2 995.2 DAY 9 20 21 8 18 25 22 6 15 18 19 15 2000 1005.0 1009.6 1001.5 1005.1 998.8 1001.4 1000.7 998.7 998.7 1012.0 1016.7 1012.3 998.7 DAY 20 6 24 10 26 5 10 30 1 11 5 15 2001 1017.8 1001.3 1001.5 998.4 999.5 1000.3 997.0 997.3 1002.4 1006.8 1003.3 1009.8 997.0 DAY 4 21 24 12 8 26 9 30 4 6 17 20 2002 1003.8 1002.9 998.6 996.3 1001.0 996.0 997.0 995.7 1004.6 1007.8 1007.9 1001.1 995.7 DAY 7 26 28 3 29 19 24 8 10 21 12 21 2003 1000.7 1004.3 1000.8 1003.2 1004.1 1000.5 995.4 1003.3 1001.5 1003.2 1010.5 1008.6 995.4 DAY 28 20 26 26 29 17 8 14 6 26 1 6 2004 1003.4 997.6 1002.6 999.0 996.3 998.7 1001.9 993.8 1003.1 1008.1 1000.1 1010.3 993.8 DAY 23 15 30 23 12 17 23 12 10 21 23 9 2005 1006.0 1005.5 1004.4 1004.5 1000.5 992.0 994.5 997.5 1002.4 1003.0 1011.6 1006.8 992.0 DAY 23 1 9 29 5 20 5 8 4 20 8 23 1977-2005 1000.7 997.1 996.0 995.8 996.3 992.0 992.3 993.8 997.0 1003.0 1000.1 999.1 992.0 YEAR-DAY 3-28 99-20 98-18 97- 9 4-12 5-20 98- 5 4-12 96- 8 5-20 4-23 91- 4 5-20 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 148 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M AVERAGE OF COMPUTED QFF PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1016.5 1022.8 1021.2 1023.8 ****** 1982 1023.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.1 1022.0 ****** ****** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1986 ****** ****** 1021.5 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1988 ****** ****** ****** ****** 1012.8 ****** ****** ****** ****** ****** ****** ****** ****** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1011.7 1016.9 1021.5 1017.7 ****** 1992 1020.9 1015.5 1018.0 1012.7 1013.3 1005.5 1004.4 1009.6 1012.7 1016.2 1018.4 1019.4 1013.9 1993 1022.6 1020.6 1017.1 1011.7 1010.2 1006.7 1005.9 1007.5 1009.7 1020.9 1021.3 1022.8 1014.7 1994 1020.0 1020.0 1015.8 1013.9 1010.2 1005.5 1002.9 1004.3 1015.8 1019.1 1015.2 1021.7 1013.7 1995 1021.2 1019.5 1016.2 1011.2 1011.9 1005.3 1001.7 1004.0 1009.4 1018.3 1016.9 1023.1 1013.2 1996 1023.1 1019.5 1015.9 1014.6 1010.9 1007.3 1005.6 1006.4 1006.8 1016.4 1024.1 1020.8 1014.3 1997 1018.5 1021.9 1014.2 1010.3 1011.5 1005.0 1001.8 1004.6 1011.3 1014.3 1020.5 1019.1 1012.8 1998 1019.6 1020.2 1014.5 1011.4 1011.7 1008.0 1003.5 1006.5 1010.0 1017.1 1018.8 1022.8 1013.7 1999 1021.4 1015.0 1015.7 1014.1 1011.4 1005.2 1004.1 1004.9 1009.5 1015.0 1020.5 1022.9 1013.3 2000 1018.7 1019.9 1015.8 1010.1 1008.2 1006.3 1005.3 1005.8 1008.8 1018.0 1023.3 1020.5 1013.4 2001 1024.2 1017.9 1015.3 1011.3 1007.1 1005.1 1004.6 1005.8 1009.8 1016.1 1017.5 1020.1 1012.9 2002 1020.4 1019.6 1014.8 1010.6 1010.4 1005.7 1005.3 1003.7 1009.7 1014.0 1020.3 1021.9 1013.0 2003 1019.8 1015.5 1016.4 1014.4 1012.9 1006.9 1002.0 1006.6 1010.6 1012.5 1020.6 1022.6 1013.4 2004 1015.7 1016.0 1018.2 1013.2 1008.0 1005.9 1005.6 1004.1 1011.9 1018.1 1016.4 1021.2 1012.9 2005 1019.1 1019.1 1013.5 1014.8 1010.6 1005.8 1003.1 1005.6 1008.6 1016.5 1020.9 1021.6 1013.3 MEAN 1020.5 1018.6 1016.2 1012.5 1010.7 1006.0 1004.0 1005.7 1010.8 1017.2 1020.0 1021.4 1013.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 149 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MAX. OF COMPUTED QFF PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1025.5 1031.7 1030.4 1032.5 ****** DAY ** ** ** ** ** ** ** ** 23 28 15 1 1982 1036.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 19 ** ** ** ** ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1028.0 1034.5 ****** ****** DAY ** ** ** ** ** ** ** ** ** 28 4 ** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1986 ****** ****** 1029.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 2 ** ** ** ** ** ** ** ** ** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1988 ****** ****** ****** ****** 1023.1 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 4 ** ** ** ** ** ** ** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1020.8 1023.1 1027.8 1029.2 ****** DAY ** ** ** ** ** ** ** ** 27 12 24 16 1992 1036.1 1026.6 1032.1 1022.3 1025.4 1014.0 1012.6 1019.6 1020.9 1024.1 1030.5 1027.8 1036.1 DAY 9 16 12 30 2 6 12 30 29 29 3 2 1993 1035.4 1032.5 1029.5 1022.0 1022.4 1021.0 1011.0 1012.5 1019.3 1028.6 1031.2 1030.0 1035.4 DAY 6 16 16 23 9 22 27 23 22 7 21 6 1994 1034.0 1032.8 1023.6 1031.2 1021.1 1010.8 1009.0 1009.7 1022.8 1025.0 1021.9 1033.5 1034.0 DAY 9 18 24 4 18 5 1 6 22 24 2 7 1995 1032.2 1027.9 1028.9 1021.7 1019.2 1012.6 1007.5 1010.7 1018.7 1034.5 1029.5 1035.0 1035.0 DAY 6 17 2 6 26 23 24 24 21 17 15 10 1996 1036.7 1031.0 1022.8 1028.3 1018.3 1015.2 1012.9 1017.5 1017.7 1027.0 1037.1 1034.0 1037.1 DAY 9 3 16 4 1 11 3 29 24 18 18 7 1997 1030.9 1032.5 1032.5 1021.0 1020.6 1011.9 1008.5 1010.2 1017.8 1022.7 1034.8 1030.5 1034.8 DAY 23 7 10 12 15 4 19 21 15 8 7 28 1998 1029.3 1038.0 1025.5 1021.3 1022.6 1013.1 1010.6 1010.5 1020.1 1031.8 1027.9 1030.8 1038.0 DAY 3 22 26 11 2 5 15 18 12 9 20 29 1999 1038.6 1026.2 1028.3 1023.0 1019.2 1015.1 1009.1 1011.5 1019.0 1024.6 1034.9 1032.9 1038.6 DAY 2 11 18 22 8 16 27 19 23 25 30 5 2000 1030.5 1029.2 1027.9 1019.9 1016.7 1016.3 1010.8 1011.7 1016.7 1027.0 1035.7 1027.9 1035.7 DAY 14 10 15 1 4 13 25 8 25 15 16 9 2001 1032.2 1034.5 1029.9 1026.6 1016.9 1015.6 1008.0 1012.0 1019.9 1027.1 1026.7 1030.3 1034.5 DAY 25 9 11 1 18 1 29 11 19 27 19 21 2002 1029.5 1033.9 1035.6 1020.4 1020.3 1014.5 1012.1 1011.4 1015.3 1019.6 1030.1 1037.9 1037.9 DAY 25 18 10 26 16 24 1 31 29 22 17 3 2003 1028.4 1030.2 1033.3 1025.6 1028.6 1018.9 1010.0 1010.2 1021.5 1020.0 1031.9 1040.1 1040.1 DAY 18 12 2 30 1 6 3 30 26 15 22 11 2004 1024.7 1022.0 1033.7 1024.3 1019.2 1017.4 1011.5 1009.1 1017.9 1027.4 1029.6 1033.5 1033.7 DAY 29 4 8 5 21 13 7 17 25 14 28 3 2005 1028.2 1030.6 1025.0 1034.7 1017.3 1014.1 1007.6 1011.9 1013.7 1028.1 1027.6 1035.4 1035.4 DAY 9 16 26 5 18 8 8 29 7 23 25 28 1977-2005 1038.6 1038.0 1035.6 1034.7 1028.6 1021.0 1012.9 1019.6 1025.5 1034.5 1037.1 1040.1 1040.1 YEAR-DAY 99- 2 98-22 2-10 5- 5 3- 1 93-22 96- 3 92-30 81-23 95-17 96-18 3-11 3-11 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION BOJNURD (40723) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 150 LATITUDE 37 28 N LONGITUDE 57 19 E DATA PROCESSING CENTER ELEVATION 1091.0 M MIN. OF COMPUTED QFF PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1977 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1978 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1979 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1980 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1981 ****** ****** ****** ****** ****** ****** ****** ****** 1009.3 1014.8 1009.7 1010.2 ****** DAY ** ** ** ** ** ** ** ** 12 16 5 18 1982 1008.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 31 ** ** ** ** ** ** ** ** ** ** ** 1983 ****** ****** ****** ****** ****** ****** ****** ****** ****** 1009.6 1012.6 ****** ****** DAY ** ** ** ** ** ** ** ** ** 4 12 ** 1984 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1985 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1986 ****** ****** 1013.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** 9 ** ** ** ** ** ** ** ** ** 1987 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1988 ****** ****** ****** ****** 1004.5 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 11 ** ** ** ** ** ** ** 1989 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1990 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 1991 ****** ****** ****** ****** ****** ****** ****** ****** 1003.1 1010.7 1011.1 1006.3 ****** DAY ** ** ** ** ** ** ** ** 19 4 4 1 1992 1007.0 1000.0 999.4 1004.2 1002.7 998.0 998.7 1001.8 1003.8 1008.9 1004.7 1013.1 998.0 DAY 2 24 30 22 9 27 9 24 25 24 25 13 1993 1008.3 1012.1 1003.8 999.2 1005.1 1000.5 1000.5 1000.1 1000.7 1006.3 1006.3 1014.5 999.2 DAY 8 2 21 20 31 16 24 12 3 28 10 4 1994 1005.6 1008.1 1002.9 1002.0 1002.9 998.0 995.1 997.9 1008.7 1010.9 1004.8 999.1 995.1 DAY 16 1 7 30 1 15 30 1 1 14 25 3 1995 1010.3 1007.4 997.0 1002.3 1004.6 996.0 994.5 997.2 1002.8 1008.3 1002.3 1016.0 994.5 DAY 16 8 25 19 6 29 15 22 19 3 25 25 1996 1004.3 1004.2 1004.9 1002.3 1003.3 999.1 1000.0 999.1 997.1 1005.1 1015.7 1007.8 997.1 DAY 6 1 25 18 29 4 6 8 8 26 1 29 1997 1008.1 1010.5 999.0 995.9 998.6 1000.1 997.4 996.7 999.0 1005.8 1010.6 1004.8 995.9 DAY 15 22 25 9 4 22 15 14 2 6 4 9 1998 1004.3 1005.1 996.3 1000.5 998.4 1003.0 991.1 1002.4 1001.4 1002.6 1009.9 1012.8 991.1 DAY 13 7 18 21 21 28 5 16 2 1 1 20 1999 1007.1 996.1 1005.4 1003.5 1003.9 994.1 998.4 999.6 1002.5 1008.8 1008.6 1010.1 994.1 DAY 9 20 26 13 18 25 22 6 15 18 19 15 2000 1004.1 1008.7 1000.5 1003.8 998.0 1000.5 999.3 997.8 998.9 1012.0 1016.6 1012.3 997.8 DAY 20 6 24 10 26 5 10 3 1 11 5 15 2001 1017.6 1001.3 1001.5 998.5 998.6 994.1 996.9 996.7 1002.3 1006.8 1003.3 1009.8 994.1 DAY 4 21 24 12 9 6 9 30 4 24 17 20 2002 1003.8 1003.0 999.0 996.3 1001.0 995.1 997.0 995.7 1004.5 1007.5 1008.0 1001.1 995.1 DAY 7 26 28 3 29 19 24 8 10 21 12 21 2003 1000.7 1004.2 1000.8 1003.2 1004.1 1000.5 995.4 1003.2 1001.6 1003.2 1010.5 1008.6 995.4 DAY 28 20 26 26 29 17 8 14 6 26 1 6 2004 1003.3 997.6 1002.6 999.3 996.3 998.7 1001.5 993.7 1003.0 1008.1 1000.0 1010.4 993.7 DAY 23 15 30 23 12 17 23 12 10 21 23 9 2005 1006.0 1005.5 1004.4 1004.4 1000.5 992.0 994.4 997.6 1002.3 1003.0 1011.5 1006.8 992.0 DAY 23 1 9 29 5 20 5 8 4 20 8 23 1977-2005 1000.7 996.1 996.3 995.9 996.3 992.0 991.1 993.7 997.1 1002.6 1000.0 999.1 991.1 YEAR-DAY 3-28 99-20 98-18 97- 9 4-12 5-20 98- 5 4-12 96- 8 98- 1 4-23 94- 3 98- 5 =============================================================================================== TEHRAN 2006,MAY M.(S & A)