STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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(MDT) (C) ***** ***** 8.1 17.7 21.8 27.8 30.7 28.4 23.9 19.8 10.2 4.4 ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** 0.0 0.0 53.4 203.4 300.1 229.2 87.0 27.9 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** 288.7 29.1 8.9 0.0 0.0 0.0 0.0 19.4 233.6 409.3 ****** DEWPOINT (MEAN C) ***** ***** 1.2 5.8 7.1 8.3 5.4 5.3 4.0 3.5 1.2 -1.7 ***** MIXING RATIO (G/KG) ****** ****** 4.69 6.57 7.18 8.13 6.32 6.39 5.69 5.50 4.71 3.81 ****** VAPOUR PRESSURE (HPA) ****** ****** 6.85 9.55 10.40 11.68 9.14 9.26 8.30 8.04 6.90 5.59 ****** SATURATION DEF. (HPA) ****** ****** 5.43 11.68 17.96 29.52 39.75 32.84 24.69 16.86 6.09 2.66 ****** RELATIVE HUMIDITY (MEAN %) *** *** 63 50 43 31 21 25 29 37 59 71 *** RELATIVE HUMIDITY (MAX. %) *** *** 82 75 67 48 36 40 43 55 78 88 *** RELATIVE HUMIDITY (MIN. %) *** *** 46 29 24 20 12 15 18 21 38 47 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** 76 70 63 47 36 39 42 54 73 84 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** 53 34 30 25 15 18 21 25 44 53 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** 54 39 33 23 12 16 21 27 53 68 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. ****** ****** 73.6 19.3 43.3 0.0 0.1 0.0 0.0 0.0 40.5 28.3 ****** DAYS WITH PRECIPITATION >=10 **** **** 2 0 2 0 0 0 0 0 2 1 **** DAYS WITH PRECIPITATION >= 5 **** **** 2 2 3 0 0 0 0 0 3 1 **** DAYS WITH PRECIPITATION >= 1 **** **** 7 5 4 0 0 0 0 0 5 2 **** DAYS WITH PRECIPITATION **** **** 13 6 6 0 1 0 0 0 6 3 **** GREATEST DAILY PRECIPITATION ****** ****** 40.0 8.0 22.0 0.0 0.1 0.0 0.0 0.0 15.0 24.0 ****** DAY ** ** 8 11 4 ** 22 ** ** ** 29 20 DAY WITH THUNDER STORM **** **** 0 1 3 0 0 0 0 0 0 0 **** DAYS WITH SNOW OR SLEET **** **** 3 0 0 0 0 0 0 0 0 3 **** DAYS WITH DUST **** **** 0 1 0 0 0 1 0 0 0 0 **** WIND DIRECTION (PREVAILING) *** *** 90 270 270 90 90 90 90 270 270 270 *** PREVAILING WIND SPEED(KNOTS) **** **** 5.6 6.6 6.9 8.5 7.6 7.3 4.5 5.3 6.3 8.0 **** PREVAILING WIND PERCENT ***** ***** 17.6 20.8 32.7 22.9 46.8 38.7 16.3 20.6 14.2 15.3 ***** CALMS PERCENT OF WIND ***** ***** 55.3 44.6 33.5 32.9 35.5 41.1 59.6 54.4 69.6 75.0 ***** NO. OF WIND OBSERVATION **** **** 188 240 248 240 248 248 240 248 240 248 2388 VECTOR WIND DIRECTION (MEAN) *** *** 59 302 285 68 84 85 81 281 270 275 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** 0.7 0.2 2.0 0.7 3.7 3.3 0.2 0.5 0.8 1.2 **** WIND STEADINESES (MEAN %) ***** ***** 28.0 5.7 47.6 16.3 84.1 80.5 11.1 21.7 47.1 66.7 ***** WIND SPEED (MEAN KNOTS) **** **** 2.5 3.5 4.2 4.3 4.4 4.1 1.8 2.3 1.7 1.8 **** FASTEST WIND DIRECTION *** *** 290 280 270 110 90 100 90 240 270 270 *** FASTEST WIND SPEED (KNOTS) *** *** 17 17 27 19 17 21 14 37 16 19 *** DAY ** ** 8 15 1 15 29 17 22 23 11 3 DAYS WITH SKY CLEAR (0-2)/8 **** **** 6 6 16 28 28 25 30 20 15 15 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** 10 15 9 1 3 6 0 10 7 9 **** DAYS WITH CLOUDY (7-8)/8 **** **** 15 9 6 1 0 0 0 1 8 7 **** DAYS WITH VISIBILITY =< 2 KM **** **** 3 0 0 0 0 0 0 0 0 3 **** DURATION OF SUNSHINE HOURS ****** ****** 147.2 189.6 285.2 357.7 363.0 345.7 325.3 265.6 172.2 184.7 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 ****** ****** 916.2 913.8 912.6 906.9 908.9 911.0 915.2 917.7 918.2 919.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** 923.9 922.5 920.4 916.4 914.3 915.9 921.7 926.2 926.4 931.4 ****** DAY-HOUR **-** **-** 28- 6 5- 6 18- 6 2- 6 15- 3 24-21 22- 6 15- 6 16- 6 7- 6 MIN. QFE PRESSURE IN HPA ****** ****** 908.1 908.2 906.3 900.7 901.1 905.5 910.2 910.5 909.1 907.8 ****** DAY-HOUR **-** **-** 8- 3 30-15 11-15 17-12 20-15 6-15 6-15 1-15 7-12 30-15 MEAN QNH PRESSURE IN HPA ****** ****** 1017.3 1014.7 1013.4 1007.2 1009.4 1011.6 1016.3 1019.0 1019.5 1020.7 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1025.7 1024.2 1021.9 1017.5 1015.3 1017.0 1023.3 1028.2 1028.4 1033.9 ****** DAY-HOUR **-** **-** 28- 6 5- 6 18- 6 2- 6 15- 3 24-21 22- 6 15- 6 16- 6 7- 6 MIN. 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QFF PRESSURE IN HPA ****** ****** ****** 1005.2 1001.2 992.6 992.9 999.0 1005.1 1006.0 1007.3 1009.5 ****** DAY ** ** ** 30 31 17 20 15 25 1 7 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 ****** ****** 915.0 912.6 911.1 904.9 907.1 909.1 913.4 916.4 917.5 918.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** 922.2 920.7 917.0 912.4 910.7 913.0 917.5 921.2 924.2 927.8 ****** DAY ** ** 16 5 18 2 3 31 22 14 15 6 MIN. 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QNH PRESSURE IN HPA ****** ****** ****** 1010.0 1008.4 1002.6 1003.0 1007.4 1012.5 1013.8 1010.0 1011.3 ****** DAY ** ** ** 10 30 16 20 4 5 1 7 27 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1011.0 1008.3 999.8 1000.9 1004.3 1010.3 1015.0 1018.8 1022.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1020.9 1014.0 1008.7 1005.2 1010.3 1015.0 1020.9 1027.3 1036.0 ****** DAY ** ** ** 5 19 2 15 31 21 14 15 6 MIN. QFF PRESSURE IN HPA ****** ****** ****** 1006.7 1002.3 994.3 993.8 999.8 1006.4 1009.1 1007.7 1012.8 ****** DAY ** ** ** 29 30 28 20 4 3 1 7 2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.7 8.0 11.1 18.0 25.1 30.6 31.0 30.8 25.2 14.8 11.6 6.2 18.2 MINIMUN AIR TEMPERATURE (C) -1.7 1.2 4.9 8.9 16.2 20.7 21.8 21.0 16.0 8.7 4.5 0.3 10.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 2 11 21 16 0 0 0 0 50 DAYS WITH MINIMUM TEMP. <=-4 8 6 0 0 0 0 0 0 0 0 0 4 18 DAYS WITH FREEZING MIN.<= 0 22 11 6 0 0 0 0 0 0 0 1 15 55 TEMPERATURE RECORDS LOWEST(C) -5.5 -5.2 -1.7 1.0 9.0 17.0 15.0 16.5 11.2 1.2 -2.4 -6.1 -6.1 DAY 13 12 23 6 8 1 29 24 25 13 30 3 MAXIMUM AIR TEMPERATURE (C) 14.2 15.7 17.3 26.7 33.3 38.7 39.2 39.3 34.1 21.2 19.8 13.7 26.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 11 25 30 30 31 27 4 0 0 158 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.4 23.2 24.0 34.0 37.0 42.0 44.2 42.2 41.0 34.2 26.0 20.5 44.2 DAY 31 25 9 15 16 29 20 4 6 1 7 11 DIF. BETWEEN (MAX.-MIN.) (C) 15.9 14.5 12.4 17.8 17.1 18.0 17.4 18.3 18.1 12.5 15.3 13.4 15.9 MEAN DAILY TEMP. (MDT) (C) 6.3 8.4 11.1 17.8 24.8 29.7 30.5 30.1 25.0 15.0 12.2 7.0 18.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 9.1 119.2 260.8 294.6 283.1 121.1 9.3 0.0 0.0 1097.5 HEATING DEG. DAYS(BASE 18 0C) 352.5 267.5 214.5 49.6 0.0 0.0 0.0 0.0 0.0 124.9 174.8 341.8 1525.5 DEWPOINT (MEAN C) -3.9 -1.2 0.9 2.3 5.3 1.1 6.5 4.9 3.1 2.6 0.1 -1.4 1.7 MIXING RATIO (G/KG) 3.19 4.02 4.86 5.14 6.42 4.75 6.94 6.25 5.45 5.46 4.34 3.90 5.06 VAPOUR PRESSURE (HPA) 4.69 5.88 7.06 7.47 9.31 6.89 10.02 9.03 7.92 7.99 6.37 5.72 7.36 SATURATION DEF. (HPA) 5.08 5.53 6.64 14.94 24.42 39.08 37.16 37.61 26.26 10.18 8.25 4.20 18.28 RELATIVE HUMIDITY (MEAN %) 54 57 55 40 33 17 25 22 27 51 50 61 41 RELATIVE HUMIDITY (MAX. %) 76 78 77 62 55 31 43 39 45 68 70 81 60 RELATIVE HUMIDITY (MIN. %) 28 35 34 22 17 9 13 11 14 35 27 38 24 RELATIVE HUMIDITY (MEAN% 03UTC) 73 74 73 58 50 29 39 38 45 62 68 76 57 RELATIVE HUMIDITY (MEAN% 09UTC) 36 41 41 26 21 12 17 16 18 41 32 44 29 RELATIVE HUMIDITY (MEAN% 15UTC) 45 46 45 29 21 10 15 12 18 47 41 54 32 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 0.7 13.2 33.5 3.4 5.6 0.0 5.0 0.1 3.8 32.0 2.9 15.0 115.2 DAYS WITH PRECIPITATION >=10 0 0 1 0 0 0 0 0 0 0 0 0 1 DAYS WITH PRECIPITATION >= 5 0 1 2 0 0 0 0 0 0 2 0 2 7 DAYS WITH PRECIPITATION >= 1 0 4 6 1 3 0 2 0 1 8 1 4 30 DAYS WITH PRECIPITATION 1 10 12 3 4 0 2 1 1 13 3 6 56 GREATEST DAILY PRECIPITATION 0.7 5.7 10.1 3.1 2.0 0.0 3.0 0.1 3.8 8.6 2.0 6.0 10.1 DAY 6 27 4 11 5 ** 28 5 21 26 29 24 DAY WITH THUNDER STORM 0 0 0 0 2 0 0 0 0 1 0 0 3 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 1 1 DAYS WITH DUST 2 0 0 1 1 2 0 0 2 0 0 0 8 WIND DIRECTION (PREVAILING) 270 270 270 270 270 90 90 90 90 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 7.8 6.4 7.0 7.3 8.4 9.0 8.2 7.5 7.0 6.8 6.4 6.9 7.3 PREVAILING WIND PERCENT 16.9 10.6 23.8 24.6 29.0 41.3 29.4 28.6 22.1 9.7 8.3 16.9 15.4 CALMS PERCENT OF WIND 67.7 70.6 50.4 47.1 39.5 31.3 37.9 46.4 55.0 69.8 80.8 70.6 55.5 NO. OF WIND OBSERVATION 248 218 248 240 248 240 248 248 240 248 240 248 2914 VECTOR WIND DIRECTION (MEAN) 274 271 268 264 278 85 68 82 69 314 289 269 313 VECTOR WIND MAGNITUDE(KNOTS) 1.3 0.4 1.8 2.6 1.9 3.2 1.9 2.0 0.9 0.5 0.3 1.3 0.2 WIND STEADINESES (MEAN %) 61.9 23.5 56.2 63.4 43.2 57.1 40.4 54.1 29.0 26.3 25.0 72.2 6.5 WIND SPEED (MEAN KNOTS) 2.1 1.7 3.2 4.1 4.4 5.6 4.7 3.7 3.1 1.9 1.2 1.8 3.1 FASTEST WIND DIRECTION 280 270 240 220 280 250 80 250 270 290 250 280 280 FASTEST WIND SPEED (KNOTS) 29 23 25 29 27 21 19 17 19 17 19 17 29 DAY 30 27 14 26 12 3 15 5 18 9 7 31 DAYS WITH SKY CLEAR (0-2)/8 19 10 7 12 11 27 29 26 28 10 17 14 210 DAYS WITH P.CLOUDY (3-6)/8 10 10 15 16 14 3 2 5 2 10 8 14 109 DAYS WITH CLOUDY (7-8)/8 2 7 9 2 6 0 0 0 0 11 5 3 45 DAYS WITH VISIBILITY =< 2 KM 1 0 0 0 0 0 0 0 0 1 0 0 2 DURATION OF SUNSHINE HOURS 236.0 177.5 199.9 268.2 259.7 347.8 357.8 345.3 298.2 170.1 202.3 188.8 3051.6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 919.4 917.5 911.7 913.9 913.2 909.3 908.6 908.5 913.0 919.6 920.0 918.8 914.5 MAX. QFE PRESSURE IN HPA 929.4 926.1 922.3 923.4 920.8 916.3 914.9 917.4 920.6 927.4 933.0 932.6 933.0 DAY-HOUR 12- 6 12- 6 23- 6 22- 6 1- 3 28- 6 11- 6 8- 6 24- 6 16- 6 30- 6 1- 6 MIN. QFE PRESSURE IN HPA 909.6 908.2 900.8 902.7 905.2 903.9 900.5 901.8 907.0 907.8 906.6 908.0 900.5 DAY-HOUR 6-12 10-15 13-21 4-15 22-15 9-15 3-15 25-15 6-12 4-15 7-12 24- 0 MEAN QNH PRESSURE IN HPA 1020.8 1018.7 1012.4 1014.8 1014.0 1009.8 1009.0 1009.0 1013.8 1021.0 1021.5 1020.2 1015.4 MAX. QNH PRESSURE IN HPA 1031.7 1028.1 1024.0 1025.2 1022.3 1017.4 1015.9 1018.6 1022.1 1029.5 1035.6 1035.2 1035.6 DAY-HOUR 12- 6 12- 6 23- 6 22- 6 1- 3 28- 6 11- 6 8- 6 24- 6 16- 6 30- 6 1- 6 MIN. QNH PRESSURE IN HPA 1010.1 1008.6 1000.6 1002.6 1005.4 1003.9 1000.2 1001.6 1007.3 1008.2 1006.9 1008.4 1000.2 DAY-HOUR 6-12 10-15 13-21 4-15 22-15 9-15 3-15 25-15 6-12 4-15 7-12 24- 0 MEAN QFF PRESSURE IN HPA 1022.4 1019.2 1011.6 1011.6 1008.3 1002.3 1001.3 1001.3 1008.0 1019.0 1020.7 1021.4 1012.3 MAX. QFF PRESSURE IN HPA 1034.8 1030.7 1024.8 1022.5 1018.2 1009.6 1010.5 1011.4 1017.8 1029.1 1039.3 1038.7 1039.3 DAY-HOUR 12- 6 12- 6 23- 6 22- 6 1- 3 28- 6 29- 3 8- 3 24- 6 28- 6 30- 6 1- 6 MIN. QFF PRESSURE IN HPA 1011.8 1009.2 999.2 1000.5 999.6 996.6 992.7 994.6 999.7 1003.7 1003.5 1007.9 992.7 DAY-HOUR 27- 0 10-15 14- 0 4-15 22-15 9-15 3-15 25-15 6-12 4-12 7-12 24- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 919.4 917.5 911.4 914.0 913.3 909.4 908.7 908.6 913.1 919.3 919.9 919.0 914.5 MAX. QFE PRESSURE IN HPA 927.5 924.3 919.3 919.4 918.1 913.4 913.0 915.3 918.4 925.7 931.5 931.3 931.5 DAY 12 7 23 22 1 28 11 8 26 29 30 1 MIN. QFE PRESSURE IN HPA 911.2 911.3 900.8 907.4 907.8 905.6 903.8 904.6 909.6 909.8 911.8 908.0 900.8 DAY 3 10 14 5 23 10 3 25 6 4 7 24 MEAN QNH PRESSURE IN HPA 1020.8 1018.8 1012.1 1014.9 1014.1 1010.0 1009.2 1009.1 1014.0 1020.7 1021.4 1020.3 1015.4 MAX. QNH PRESSURE IN HPA 1029.6 1026.1 1020.7 1020.8 1019.4 1014.3 1013.8 1016.3 1019.7 1027.7 1034.0 1033.8 1034.0 DAY 12 7 23 22 1 28 11 8 26 29 30 1 MIN. QNH PRESSURE IN HPA 1011.9 1012.0 1000.6 1007.7 1008.2 1005.8 1003.8 1004.7 1010.1 1010.4 1012.5 1008.4 1000.6 DAY 3 10 14 5 23 10 3 25 6 4 7 24 MEAN QFF PRESSURE IN HPA 1021.9 1019.1 1011.1 1011.7 1008.3 1002.5 1001.3 1001.3 1007.9 1018.4 1020.1 1021.1 1012.1 MAX. QFF PRESSURE IN HPA 1030.9 1027.8 1021.6 1018.4 1014.2 1008.0 1008.9 1008.6 1015.2 1027.8 1036.5 1036.4 1036.5 DAY 12 7 23 1 1 1 29 8 25 29 30 1 MIN. QFF PRESSURE IN HPA 1011.8 1011.4 999.2 1005.3 1001.9 998.2 995.2 997.3 1003.0 1005.5 1009.9 1007.9 995.2 DAY 27 5 14 19 23 18 21 26 6 4 7 24 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 919.9 918.2 912.2 915.1 914.4 911.1 910.3 910.2 914.3 920.1 920.6 919.2 915.5 MAX. QFE PRESSURE IN HPA 928.3 924.9 920.7 922.5 920.8 915.8 914.4 917.1 919.5 926.1 931.8 931.7 931.8 DAY 12 7 23 22 1 28 11 8 26 29 30 1 MIN. QFE PRESSURE IN HPA 912.0 910.8 902.4 908.2 909.2 907.4 904.5 906.0 910.7 911.1 911.2 909.6 902.4 DAY 3 10 14 4 23 10 3 25 6 4 7 24 MEAN QNH PRESSURE IN HPA 1021.4 1019.5 1013.0 1016.1 1015.3 1011.7 1010.9 1010.8 1015.3 1021.5 1022.1 1020.6 1016.5 MAX. QNH PRESSURE IN HPA 1030.5 1026.8 1022.2 1024.2 1022.3 1016.9 1015.4 1018.3 1020.9 1028.1 1034.3 1034.2 1034.3 DAY 12 7 23 22 1 28 11 8 26 29 30 1 MIN. QNH PRESSURE IN HPA 1012.8 1011.5 1002.3 1008.6 1009.7 1007.7 1004.6 1006.2 1011.3 1011.8 1011.9 1010.1 1002.3 DAY 3 10 14 4 23 10 3 25 6 4 7 24 MEAN QFF PRESSURE IN HPA 1023.5 1020.4 1012.6 1013.5 1009.9 1004.5 1003.3 1003.5 1010.0 1019.9 1022.0 1022.3 1013.8 MAX. QFF PRESSURE IN HPA 1033.3 1029.6 1023.8 1021.8 1018.2 1009.3 1010.5 1011.4 1016.9 1028.3 1038.0 1037.9 1038.0 DAY 12 7 23 22 1 28 29 8 25 29 30 1 MIN. QFF PRESSURE IN HPA 1014.7 1011.9 1001.0 1005.7 1003.1 999.8 996.8 999.1 1005.2 1007.7 1010.0 1010.0 996.8 DAY 27 10 14 19 23 18 3 25 6 4 7 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 921.2 919.4 913.4 915.8 914.8 911.6 910.8 910.9 915.2 921.2 921.6 920.6 916.4 MAX. QFE PRESSURE IN HPA 929.4 926.1 922.3 923.4 920.6 916.3 914.9 917.4 920.6 927.4 933.0 932.6 933.0 DAY 12 12 23 22 1 28 11 8 24 16 30 1 MIN. QFE PRESSURE IN HPA 914.3 911.4 903.8 908.5 910.0 908.4 904.5 907.0 911.2 912.2 911.5 912.5 903.8 DAY 3 10 14 19 23 10 3 25 6 4 7 24 MEAN QNH PRESSURE IN HPA 1022.8 1020.8 1014.3 1016.9 1015.8 1012.3 1011.4 1011.6 1016.3 1022.7 1023.2 1022.1 1017.5 MAX. QNH PRESSURE IN HPA 1031.7 1028.1 1024.0 1025.2 1022.1 1017.4 1015.9 1018.6 1022.1 1029.5 1035.6 1035.2 1035.6 DAY 12 12 23 22 1 28 11 8 24 16 30 1 MIN. QNH PRESSURE IN HPA 1015.3 1012.1 1003.8 1008.9 1010.6 1008.8 1004.6 1007.3 1011.9 1013.0 1012.2 1013.3 1003.8 DAY 3 10 14 19 23 10 3 25 6 4 7 24 MEAN QFF PRESSURE IN HPA 1024.8 1021.7 1013.6 1013.7 1009.9 1004.8 1003.6 1003.8 1010.5 1020.7 1022.6 1023.8 1014.5 MAX. QFF PRESSURE IN HPA 1034.8 1030.7 1024.8 1022.5 1017.5 1009.6 1010.0 1010.7 1017.8 1029.1 1039.3 1038.7 1039.3 DAY 12 12 23 22 1 28 29 8 24 28 30 1 MIN. QFF PRESSURE IN HPA 1017.2 1012.6 1003.3 1004.3 1003.5 1000.3 996.6 999.6 1004.7 1007.7 1009.9 1013.3 996.6 DAY 3 10 14 19 23 18 3 15 6 4 7 24 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 919.6 918.1 912.1 914.0 913.4 909.9 909.2 909.1 913.5 919.9 920.0 919.0 914.8 MAX. QFE PRESSURE IN HPA 928.0 925.3 920.2 921.5 918.3 914.0 913.3 915.8 918.8 925.9 932.4 931.0 932.4 DAY 12 12 23 22 1 28 11 8 24 28 30 1 MIN. QFE PRESSURE IN HPA 911.9 909.7 903.3 906.7 908.5 906.6 902.5 905.0 909.1 910.6 908.8 912.0 902.5 DAY 6 10 14 4 22 18 3 25 6 4 7 30 MEAN QNH PRESSURE IN HPA 1021.0 1019.4 1012.9 1015.0 1014.3 1010.5 1009.7 1009.6 1014.4 1021.3 1021.5 1020.4 1015.8 MAX. QNH PRESSURE IN HPA 1030.2 1027.2 1021.7 1023.1 1019.6 1014.9 1014.2 1016.9 1020.2 1027.9 1035.0 1033.4 1035.0 DAY 12 12 23 22 1 28 11 8 24 28 30 1 MIN. QNH PRESSURE IN HPA 1012.6 1010.2 1003.3 1007.0 1008.9 1006.9 1002.4 1005.1 1009.6 1011.2 1009.3 1012.8 1002.4 DAY 6 10 14 4 22 18 3 25 6 4 7 30 MEAN QFF PRESSURE IN HPA 1022.1 1019.6 1011.8 1011.5 1008.4 1002.9 1001.9 1001.7 1008.3 1019.1 1020.2 1021.3 1012.4 MAX. QFF PRESSURE IN HPA 1032.0 1029.6 1022.5 1020.6 1014.5 1006.8 1007.2 1009.3 1015.5 1028.1 1037.3 1036.1 1037.3 DAY 21 12 23 22 1 1 11 8 25 28 30 1 MIN. QFF PRESSURE IN HPA 1014.4 1010.6 1002.8 1004.0 1002.9 998.0 994.3 997.4 1001.8 1006.5 1006.0 1012.5 994.3 DAY 6 10 14 26 23 18 3 25 6 4 7 24 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 918.0 916.1 910.5 912.2 911.8 907.9 907.2 906.8 911.3 918.5 918.6 917.6 913.0 MAX. QFE PRESSURE IN HPA 926.3 923.1 918.3 918.9 916.7 911.9 911.6 913.2 916.7 925.9 931.1 928.9 931.1 DAY 12 12 23 22 12 28 28 8 25 28 30 1 MIN. QFE PRESSURE IN HPA 909.6 908.6 901.9 903.9 906.1 905.0 900.7 902.5 907.0 908.0 906.6 909.8 900.7 DAY 6 10 14 4 22 9 3 25 6 4 7 30 MEAN QNH PRESSURE IN HPA 1019.3 1017.2 1011.1 1013.0 1012.5 1008.3 1007.5 1007.1 1011.9 1019.8 1020.0 1018.8 1013.9 MAX. QNH PRESSURE IN HPA 1028.3 1024.8 1019.6 1020.3 1017.9 1012.6 1012.3 1014.1 1017.9 1027.9 1033.5 1031.2 1033.5 DAY 12 12 23 22 12 28 28 8 25 28 30 1 MIN. QNH PRESSURE IN HPA 1010.1 1009.1 1001.8 1003.9 1006.3 1005.1 1000.5 1002.4 1007.3 1008.4 1006.9 1010.4 1000.5 DAY 6 10 14 4 22 9 3 25 6 4 7 30 MEAN QFF PRESSURE IN HPA 1020.3 1017.3 1010.1 1009.7 1006.8 1000.8 999.7 999.4 1005.9 1017.6 1018.8 1019.6 1010.5 MAX. QFF PRESSURE IN HPA 1030.1 1027.2 1020.3 1017.9 1012.6 1005.3 1006.5 1006.5 1013.0 1028.1 1035.6 1033.7 1035.6 DAY 12 12 23 1 12 1 28 8 25 28 30 1 MIN. QFF PRESSURE IN HPA 1012.1 1009.4 1000.7 1001.1 1000.3 997.6 992.8 994.9 999.7 1003.7 1003.5 1011.1 992.8 DAY 6 10 14 4 22 9 3 25 6 4 7 13 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 918.5 916.2 910.5 912.2 911.5 907.2 906.4 906.4 911.1 918.8 919.2 918.2 913.0 MAX. QFE PRESSURE IN HPA 926.4 922.9 918.2 917.6 916.7 911.2 912.5 912.5 916.4 926.3 931.1 928.5 931.1 DAY 12 1 23 22 12 27 28 7 25 28 30 1 MIN. QFE PRESSURE IN HPA 910.2 908.2 902.6 902.7 905.2 903.9 900.5 901.8 907.0 907.8 908.4 910.8 900.5 DAY 2 10 19 4 22 9 3 25 6 4 7 23 MEAN QNH PRESSURE IN HPA 1019.9 1017.4 1011.1 1012.9 1012.2 1007.5 1006.7 1006.6 1011.7 1020.1 1020.6 1019.5 1013.9 MAX. QNH PRESSURE IN HPA 1028.4 1024.6 1019.5 1018.9 1017.9 1011.9 1013.3 1013.3 1017.5 1028.3 1033.5 1030.7 1033.5 DAY 12 1 23 22 12 27 28 7 25 28 30 1 MIN. QNH PRESSURE IN HPA 1010.8 1008.6 1002.5 1002.6 1005.4 1003.9 1000.2 1001.6 1007.3 1008.2 1008.8 1011.5 1000.2 DAY 2 10 19 4 22 9 3 25 6 4 7 23 MEAN QFF PRESSURE IN HPA 1021.9 1018.1 1010.7 1010.1 1006.8 1000.3 999.2 999.4 1006.5 1018.5 1020.4 1021.2 1011.1 MAX. QFF PRESSURE IN HPA 1031.2 1026.9 1020.9 1017.8 1012.6 1003.9 1007.2 1006.1 1013.4 1028.6 1036.9 1034.1 1036.9 DAY 12 12 22 1 12 27 28 7 25 28 30 1 MIN. QFF PRESSURE IN HPA 1012.9 1009.2 1002.0 1000.5 999.6 996.6 992.7 994.6 1000.8 1004.3 1006.2 1012.3 992.7 DAY 2 10 19 4 22 9 3 25 6 4 7 23 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 919.4 917.2 911.7 913.8 913.0 908.5 907.9 907.9 912.5 919.6 920.0 918.7 914.2 MAX. QFE PRESSURE IN HPA 926.8 923.5 919.3 918.7 917.5 912.2 912.9 914.7 917.8 926.6 931.5 930.1 931.5 DAY 12 6 23 22 12 27 28 7 25 28 30 1 MIN. QFE PRESSURE IN HPA 910.7 909.9 902.9 905.2 906.7 905.0 903.2 903.6 908.1 909.3 911.0 910.1 902.9 DAY 2 10 13 4 22 9 2 25 2 4 7 23 MEAN QNH PRESSURE IN HPA 1020.8 1018.4 1012.4 1014.7 1013.9 1009.0 1008.3 1008.3 1013.3 1021.0 1021.5 1020.1 1015.1 MAX. QNH PRESSURE IN HPA 1028.9 1025.3 1020.7 1020.1 1018.7 1013.0 1013.7 1015.7 1019.1 1028.6 1034.0 1032.5 1034.0 DAY 12 6 23 22 12 27 28 7 25 28 30 1 MIN. QNH PRESSURE IN HPA 1011.3 1010.5 1002.8 1005.4 1007.0 1005.1 1003.2 1003.6 1008.5 1009.8 1011.7 1010.7 1002.8 DAY 2 10 13 4 22 9 2 25 2 4 7 23 MEAN QFF PRESSURE IN HPA 1022.7 1019.2 1011.7 1011.3 1007.9 1001.4 1000.5 1000.5 1007.6 1019.0 1020.9 1021.7 1012.0 MAX. QFF PRESSURE IN HPA 1032.2 1027.0 1021.2 1019.3 1013.3 1005.1 1007.9 1007.8 1014.6 1028.8 1037.3 1035.9 1037.3 DAY 12 12 22 1 19 28 28 7 24 28 30 1 MIN. QFF PRESSURE IN HPA 1013.5 1011.5 1002.6 1001.0 1000.7 997.8 995.1 995.9 1001.7 1004.7 1008.6 1011.3 995.1 DAY 6 10 13 19 22 9 2 25 2 3 7 23 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 919.5 917.2 911.8 914.1 913.3 908.9 908.3 908.4 912.9 919.5 920.2 918.6 914.4 MAX. QFE PRESSURE IN HPA 926.5 924.2 919.3 919.2 917.5 912.3 912.9 915.5 918.1 926.7 931.5 930.4 931.5 DAY 11 6 22 21 12 27 28 7 25 28 29 1 MIN. QFE PRESSURE IN HPA 910.4 911.2 900.8 906.5 907.0 905.6 904.2 904.1 909.6 909.8 912.5 908.9 900.8 DAY 6 10 13 4 22 9 3 25 1 3 7 23 MEAN QNH PRESSURE IN HPA 1020.9 1018.4 1012.5 1015.1 1014.1 1009.4 1008.8 1008.8 1013.8 1021.0 1021.7 1019.9 1015.4 MAX. QNH PRESSURE IN HPA 1028.5 1026.0 1020.7 1020.6 1018.7 1013.1 1013.7 1016.6 1019.4 1028.8 1034.0 1032.8 1034.0 DAY 11 6 22 21 12 27 28 7 25 28 29 1 MIN. QNH PRESSURE IN HPA 1011.0 1011.9 1000.6 1006.8 1007.3 1005.8 1004.3 1004.2 1010.1 1010.4 1013.3 1009.4 1000.6 DAY 6 10 13 4 22 9 3 25 1 3 7 23 MEAN QFF PRESSURE IN HPA 1022.0 1018.8 1011.5 1011.5 1008.2 1001.7 1000.9 1000.9 1007.7 1018.8 1020.5 1020.8 1011.9 MAX. QFF PRESSURE IN HPA 1030.0 1027.9 1021.7 1018.6 1012.9 1004.9 1008.4 1009.0 1015.1 1028.9 1036.7 1035.5 1036.7 DAY 20 6 22 1 19 1 28 7 24 28 30 1 MIN. QFF PRESSURE IN HPA 1011.8 1011.6 999.8 1003.8 1001.1 997.7 995.2 996.2 1003.1 1005.4 1009.6 1008.9 995.2 DAY 6 4 13 19 22 17 20 25 6 3 7 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.5 6.4 12.1 17.2 25.0 29.8 32.1 30.9 25.4 18.2 11.3 6.1 18.3 MINIMUN AIR TEMPERATURE (C) -1.0 0.8 4.8 10.1 15.7 20.0 22.9 22.1 15.1 9.1 3.3 -0.8 10.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 11 25 22 1 0 0 0 60 DAYS WITH MINIMUM TEMP. <=-4 6 2 0 0 0 0 0 0 0 0 5 6 19 DAYS WITH FREEZING MIN.<= 0 22 11 1 0 0 0 0 0 0 0 11 22 67 TEMPERATURE RECORDS LOWEST(C) -7.0 -7.0 0.0 0.4 10.0 16.0 18.0 17.0 10.0 6.0 -5.0 -8.6 -8.6 DAY 4 7 6 4 6 1 28 27 28 23 16 31 MAXIMUM AIR TEMPERATURE (C) 10.5 12.9 19.6 24.9 33.3 37.8 40.3 38.7 34.8 27.5 20.0 14.1 26.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 6 25 30 31 31 28 5 0 0 156 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 16.0 20.0 26.0 33.0 39.0 42.2 44.0 43.0 40.0 32.0 27.0 22.0 44.0 DAY 31 29 20 18 28 14 13 12 11 6 2 11 DIF. BETWEEN (MAX.-MIN.) (C) 11.5 12.1 14.8 14.8 17.6 17.8 17.4 16.6 19.7 18.4 16.7 14.9 16.0 MEAN DAILY TEMP. (MDT) (C) 4.8 6.9 12.2 17.5 24.5 28.9 31.6 30.4 25.0 18.3 11.7 6.6 18.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 7.8 113.8 237.6 329.3 291.5 122.4 0.0 0.0 0.0 1102.5 HEATING DEG. DAYS(BASE 18 0C) 410.4 322.8 179.5 65.2 0.0 0.0 0.0 0.0 0.0 14.1 191.0 352.3 1535.2 DEWPOINT (MEAN C) -2.9 -2.3 -1.9 3.6 1.0 1.3 7.3 6.4 1.5 1.2 -4.1 -4.6 0.5 MIXING RATIO (G/KG) 3.48 3.67 3.87 6.03 4.71 4.79 7.50 6.96 4.91 4.79 3.47 3.12 4.78 VAPOUR PRESSURE (HPA) 5.11 5.37 5.63 8.75 6.85 6.93 10.78 10.03 7.14 7.00 5.08 4.57 6.94 SATURATION DEF. (HPA) 3.65 4.80 9.27 12.34 26.73 36.98 39.52 36.66 27.83 15.34 9.80 5.59 19.04 RELATIVE HUMIDITY (MEAN %) 62 58 43 46 25 18 25 24 24 37 38 51 38 RELATIVE HUMIDITY (MAX. %) 81 77 65 72 44 32 44 41 39 55 58 69 56 RELATIVE HUMIDITY (MIN. %) 40 35 23 23 12 9 13 14 13 20 19 31 21 RELATIVE HUMIDITY (MEAN% 03UTC) 79 70 63 67 39 30 42 41 38 55 54 64 54 RELATIVE HUMIDITY (MEAN% 09UTC) 47 45 31 29 14 12 17 18 15 25 23 36 26 RELATIVE HUMIDITY (MEAN% 15UTC) 52 48 31 35 14 10 14 14 16 28 29 44 28 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 9.2 14.3 9.6 26.7 0.2 0.0 6.0 0.0 0.0 2.8 2.0 8.6 79.4 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH PRECIPITATION >= 5 0 0 1 1 0 0 0 0 0 0 0 1 3 DAYS WITH PRECIPITATION >= 1 2 4 3 5 0 0 2 0 0 1 1 3 21 DAYS WITH PRECIPITATION 8 9 5 9 2 0 2 0 0 1 3 4 43 GREATEST DAILY PRECIPITATION 4.4 4.0 5.0 9.6 0.1 0.0 4.0 0.0 0.0 2.8 1.0 6.1 9.6 DAY 18 24 4 13 2 ** 11 ** ** 16 14 17 DAY WITH THUNDER STORM 0 0 0 2 1 1 1 0 0 0 0 0 5 DAYS WITH SNOW OR SLEET 1 2 0 0 0 0 0 0 0 0 0 2 5 DAYS WITH DUST 1 0 5 2 0 0 3 1 0 0 1 0 13 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 90 90 90 90 270 270 270 PREVAILING WIND SPEED(KNOTS) 8.2 6.1 9.1 7.3 8.4 8.0 10.5 8.8 7.6 6.0 7.8 7.5 7.7 PREVAILING WIND PERCENT 25.8 29.3 29.4 19.2 36.3 21.7 31.9 35.5 17.5 13.7 12.9 20.2 18.9 CALMS PERCENT OF WIND 61.7 53.9 45.6 47.1 35.1 31.3 42.3 44.4 60.4 67.7 72.1 71.4 52.7 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 276 279 279 297 282 318 81 82 66 4 260 270 302 VECTOR WIND MAGNITUDE(KNOTS) 2.0 1.8 2.7 2.4 2.7 1.2 3.4 2.8 0.5 0.3 0.7 1.5 0.7 WIND STEADINESES (MEAN %) 69.0 64.3 60.0 57.1 49.1 21.4 66.7 59.6 18.5 15.0 35.0 75.0 18.9 WIND SPEED (MEAN KNOTS) 2.9 2.8 4.5 4.2 5.5 5.6 5.1 4.7 2.7 2.0 2.0 2.0 3.7 FASTEST WIND DIRECTION 290 280 290 280 240 240 110 300 290 290 270 240 110 FASTEST WIND SPEED (KNOTS) 23 21 29 23 29 19 31 21 16 23 23 19 31 DAY 19 28 31 1 1 1 6 5 13 15 14 12 DAYS WITH SKY CLEAR (0-2)/8 6 10 17 7 26 28 28 30 28 24 17 16 237 DAYS WITH P.CLOUDY (3-6)/8 17 11 9 15 5 2 3 1 2 6 8 9 88 DAYS WITH CLOUDY (7-8)/8 8 8 5 8 0 0 0 0 0 1 5 6 41 DAYS WITH VISIBILITY =< 2 KM 0 2 0 0 0 0 0 0 0 1 1 0 4 DURATION OF SUNSHINE HOURS 171.0 185.4 243.6 220.4 348.7 359.8 366.1 347.8 313.4 273.6 198.5 200.1 3228.4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.7 916.3 911.7 913.6 911.3 907.5 905.3 907.0 912.1 917.1 917.9 916.8 912.9 MAX. QFE PRESSURE IN HPA 929.4 929.1 923.0 925.8 919.7 914.4 912.9 914.3 919.6 925.4 925.3 926.4 929.4 DAY-HOUR 3- 6 7- 6 17- 6 9- 6 17- 6 8- 6 31- 6 21- 6 14- 6 16- 6 6- 6 30- 6 MIN. QFE PRESSURE IN HPA 907.9 903.8 902.6 904.2 905.2 899.5 899.4 900.7 904.4 908.6 910.1 900.8 899.4 DAY-HOUR 29- 3 2-12 4-21 23-12 24-15 30-15 18-15 29-15 11-15 30-12 28-12 27- 3 MEAN QNH PRESSURE IN HPA 1019.0 1017.4 1012.4 1014.5 1012.0 1007.9 1005.4 1007.3 1012.8 1018.3 1019.2 1018.0 1013.7 MAX. QNH PRESSURE IN HPA 1031.7 1031.4 1024.7 1027.8 1021.1 1015.4 1013.7 1015.3 1021.0 1027.3 1027.2 1028.4 1031.7 DAY-HOUR 3- 6 7- 6 17- 6 9- 6 17- 6 8- 6 31- 6 21- 6 14- 6 16- 6 6- 6 30- 6 MIN. QNH PRESSURE IN HPA 1008.3 1003.8 1002.5 1004.3 1005.4 999.1 999.0 1000.5 1004.5 1009.1 1010.7 1000.6 999.0 DAY-HOUR 29- 3 2-12 4-21 23-12 24-15 30-15 18-15 29-15 11-15 30-12 28-12 27- 3 MEAN QFF PRESSURE IN HPA 1020.9 1018.6 1011.3 1011.5 1006.4 1000.6 997.2 999.5 1007.0 1015.1 1018.5 1019.3 1010.5 MAX. QFF PRESSURE IN HPA 1035.5 1035.5 1024.6 1027.4 1016.1 1008.3 1005.6 1007.7 1016.4 1025.9 1028.9 1033.5 1035.5 DAY-HOUR 3- 6 7- 6 17- 6 9- 6 5- 6 8- 6 31- 3 21- 6 30- 6 16- 6 16- 6 30- 6 MIN. QFF PRESSURE IN HPA 1008.3 1002.2 1000.5 999.2 999.1 991.6 990.6 992.4 998.6 1006.0 1007.8 1003.5 990.6 DAY-HOUR 29- 0 2-12 21- 0 23-12 24-15 16-15 18-15 2-15 12-12 30-12 10-12 27- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 917.6 916.2 911.5 913.5 911.4 908.1 905.6 907.2 911.9 917.0 917.9 916.8 912.9 MAX. QFE PRESSURE IN HPA 927.1 927.1 920.7 923.5 917.4 912.7 910.4 911.5 917.2 923.6 923.4 925.3 927.1 DAY 3 7 17 9 17 8 31 22 14 17 16 30 MIN. QFE PRESSURE IN HPA 908.1 906.8 902.6 906.5 906.2 902.6 901.6 903.1 906.3 910.1 910.9 903.5 901.6 DAY 29 2 5 25 28 24 17 30 12 31 20 27 MEAN QNH PRESSURE IN HPA 1018.9 1017.4 1012.2 1014.4 1012.2 1008.5 1005.7 1007.5 1012.6 1018.3 1019.2 1018.0 1013.7 MAX. QNH PRESSURE IN HPA 1029.2 1029.2 1022.2 1025.3 1018.6 1013.5 1011.0 1012.2 1018.4 1025.4 1025.2 1027.2 1029.2 DAY 3 7 17 9 17 8 31 22 14 17 16 30 MIN. QNH PRESSURE IN HPA 1008.5 1007.1 1002.5 1006.8 1006.4 1002.5 1001.4 1003.1 1006.6 1010.7 1011.6 1003.5 1001.4 DAY 29 2 5 25 28 24 17 30 12 31 20 27 MEAN QFF PRESSURE IN HPA 1020.6 1018.2 1010.9 1011.2 1006.6 1001.4 997.5 999.5 1006.6 1014.7 1018.1 1018.9 1010.3 MAX. QFF PRESSURE IN HPA 1032.1 1032.4 1021.5 1024.1 1013.1 1006.7 1003.6 1005.1 1013.7 1023.6 1027.0 1031.3 1032.4 DAY 3 7 17 9 6 1 27 26 26 17 16 30 MIN. QFF PRESSURE IN HPA 1008.3 1005.4 1000.5 1000.9 1000.0 995.0 992.6 994.2 999.7 1006.9 1010.1 1005.7 992.6 DAY 29 2 21 25 28 30 17 30 12 31 11 27 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 917.9 916.8 912.5 914.5 912.7 909.3 907.2 908.9 913.4 917.9 918.5 917.2 913.9 MAX. QFE PRESSURE IN HPA 927.5 927.7 921.7 924.3 919.1 913.9 912.6 913.2 918.6 923.6 924.2 925.4 927.7 DAY 3 7 17 9 17 8 31 21 14 17 6 30 MIN. QFE PRESSURE IN HPA 907.9 906.2 904.0 906.5 907.4 903.4 902.8 904.1 907.8 911.5 911.7 900.8 900.8 DAY 29 2 5 25 1 30 8 30 12 31 20 27 MEAN QNH PRESSURE IN HPA 1019.1 1017.9 1013.3 1015.4 1013.5 1009.9 1007.5 1009.4 1014.3 1019.2 1019.8 1018.5 1014.8 MAX. QNH PRESSURE IN HPA 1029.6 1029.8 1023.3 1026.1 1020.5 1014.8 1013.4 1014.1 1019.9 1025.4 1026.0 1027.3 1029.8 DAY 3 7 17 9 17 8 31 21 14 17 6 30 MIN. QNH PRESSURE IN HPA 1008.3 1006.4 1004.0 1006.8 1007.7 1003.4 1002.7 1004.2 1008.2 1012.2 1012.4 1000.6 1000.6 DAY 29 2 5 25 1 30 8 30 12 31 20 27 MEAN QFF PRESSURE IN HPA 1021.5 1019.4 1012.6 1012.8 1008.2 1002.7 999.5 1001.8 1008.9 1016.6 1019.7 1020.2 1012.0 MAX. QFF PRESSURE IN HPA 1033.6 1034.4 1023.5 1026.2 1015.0 1007.5 1005.6 1007.1 1015.7 1024.3 1028.1 1033.1 1034.4 DAY 3 7 17 9 17 8 31 26 25 17 16 30 MIN. QFF PRESSURE IN HPA 1008.9 1005.8 1002.3 1001.2 1001.4 995.9 994.3 996.3 1002.3 1009.4 1011.7 1003.5 994.3 DAY 29 2 21 25 28 30 18 30 12 7 11 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 919.1 917.9 913.6 915.5 913.3 909.7 907.6 909.6 914.5 919.2 919.8 918.3 914.8 MAX. QFE PRESSURE IN HPA 929.4 929.1 923.0 925.8 919.7 914.4 912.9 914.3 919.6 925.4 925.3 926.4 929.4 DAY 3 7 17 9 17 8 31 21 14 16 6 30 MIN. QFE PRESSURE IN HPA 911.2 906.7 905.9 908.0 908.6 904.0 903.4 904.9 909.5 913.4 912.4 901.3 901.3 DAY 29 2 21 25 28 30 8 30 12 30 20 27 MEAN QNH PRESSURE IN HPA 1020.5 1019.2 1014.5 1016.6 1014.2 1010.3 1007.9 1010.1 1015.4 1020.6 1021.2 1019.7 1015.8 MAX. QNH PRESSURE IN HPA 1031.7 1031.4 1024.7 1027.8 1021.1 1015.4 1013.7 1015.3 1021.0 1027.3 1027.2 1028.4 1031.7 DAY 3 7 17 9 17 8 31 21 14 16 6 30 MIN. QNH PRESSURE IN HPA 1011.9 1007.0 1006.1 1008.4 1009.1 1004.0 1003.4 1005.0 1010.0 1014.3 1013.2 1001.1 1001.1 DAY 29 2 21 25 28 30 8 30 12 30 20 27 MEAN QFF PRESSURE IN HPA 1022.8 1020.6 1013.3 1013.7 1008.5 1002.9 999.7 1002.3 1009.6 1017.5 1020.8 1021.4 1012.7 MAX. QFF PRESSURE IN HPA 1035.5 1035.5 1024.6 1027.4 1016.1 1008.3 1005.1 1007.7 1016.4 1025.9 1028.9 1033.5 1035.5 DAY 3 7 17 9 5 8 30 21 30 16 16 30 MIN. QFF PRESSURE IN HPA 1012.9 1006.3 1002.0 1003.1 1002.0 996.4 995.2 996.5 1003.7 1010.1 1012.4 1004.3 995.2 DAY 29 2 21 25 28 30 18 30 4 7 11 27 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 918.0 916.7 912.1 914.1 911.7 908.0 905.9 907.8 912.7 917.5 917.8 916.8 913.3 MAX. QFE PRESSURE IN HPA 927.9 926.4 921.7 924.8 917.5 913.8 911.7 913.7 918.2 924.8 923.4 924.4 927.9 DAY 3 7 17 9 17 8 31 21 25 16 6 29 MIN. QFE PRESSURE IN HPA 910.9 904.9 905.2 906.7 907.0 901.7 902.2 903.6 908.1 911.1 911.2 902.1 901.7 DAY 29 2 21 23 28 30 18 30 12 30 28 27 MEAN QNH PRESSURE IN HPA 1019.2 1017.9 1012.9 1015.1 1012.4 1008.4 1006.1 1008.2 1013.5 1018.7 1019.1 1018.0 1014.1 MAX. QNH PRESSURE IN HPA 1030.1 1028.4 1023.3 1026.7 1018.7 1014.7 1012.4 1014.6 1019.5 1026.7 1025.2 1026.3 1030.1 DAY 3 7 17 9 17 8 31 21 25 16 6 29 MIN. QNH PRESSURE IN HPA 1011.6 1005.0 1005.4 1007.0 1007.3 1001.5 1002.1 1003.6 1008.5 1011.8 1011.9 1002.0 1001.5 DAY 29 2 21 23 28 30 18 30 12 30 28 27 MEAN QFF PRESSURE IN HPA 1020.8 1018.8 1011.6 1011.9 1006.6 1001.1 997.8 1000.2 1007.6 1015.0 1017.9 1018.8 1010.7 MAX. QFF PRESSURE IN HPA 1033.5 1031.8 1022.4 1025.9 1014.3 1007.4 1003.7 1006.7 1014.8 1025.0 1025.4 1030.1 1033.5 DAY 3 7 17 9 5 8 31 21 25 16 15 29 MIN. QFF PRESSURE IN HPA 1011.2 1003.7 1001.4 1001.3 1000.3 993.7 993.4 995.1 1001.7 1008.2 1010.4 1003.9 993.4 DAY 28 2 21 23 28 30 18 30 12 21 11 27 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 916.6 914.9 910.1 912.2 909.7 905.8 903.7 905.5 910.5 915.6 916.3 915.4 911.4 MAX. QFE PRESSURE IN HPA 926.2 924.6 918.5 921.9 915.2 911.7 909.5 911.2 916.2 923.8 922.0 923.7 926.2 DAY 3 6 17 9 17 8 31 21 25 16 15 29 MIN. QFE PRESSURE IN HPA 909.5 903.8 904.2 904.2 905.9 900.2 900.0 901.3 905.2 908.6 910.1 903.0 900.0 DAY 28 2 4 23 28 30 17 29 11 30 28 26 MEAN QNH PRESSURE IN HPA 1017.7 1016.0 1010.7 1013.0 1010.3 1006.0 1003.7 1005.7 1011.1 1016.7 1017.5 1016.5 1012.1 MAX. QNH PRESSURE IN HPA 1028.2 1026.5 1019.8 1023.5 1016.2 1012.4 1010.0 1011.9 1017.3 1025.6 1023.6 1025.5 1028.2 DAY 3 6 17 9 17 8 31 21 25 16 15 29 MIN. QNH PRESSURE IN HPA 1010.0 1003.8 1004.3 1004.3 1006.1 999.9 999.7 1001.1 1005.4 1009.1 1010.7 1003.0 999.7 DAY 28 2 4 23 28 30 17 29 11 30 28 26 MEAN QFF PRESSURE IN HPA 1019.3 1016.7 1009.4 1009.9 1004.7 998.9 995.5 997.8 1005.1 1013.1 1016.4 1017.3 1008.7 MAX. QFF PRESSURE IN HPA 1031.8 1029.6 1019.2 1022.5 1011.9 1005.2 1002.0 1004.0 1012.0 1023.8 1024.4 1029.1 1031.8 DAY 3 7 17 9 5 8 31 21 25 16 15 29 MIN. QFF PRESSURE IN HPA 1009.9 1002.2 1003.1 999.2 999.7 992.6 991.1 993.0 998.6 1006.0 1007.8 1004.7 991.1 DAY 28 2 4 23 28 30 18 29 12 30 10 26 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.1 915.4 910.3 912.2 909.4 905.2 902.9 904.7 910.1 915.7 916.9 916.3 911.3 MAX. QFE PRESSURE IN HPA 927.5 925.7 917.9 921.3 914.4 910.9 909.0 910.0 915.8 924.0 922.6 925.0 927.5 DAY 3 6 17 9 17 8 31 21 25 16 15 29 MIN. QFE PRESSURE IN HPA 910.0 905.4 903.1 905.4 905.2 899.5 899.4 900.7 904.4 909.1 910.5 903.7 899.4 DAY 26 2 4 30 24 30 18 29 11 30 10 26 MEAN QNH PRESSURE IN HPA 1018.3 1016.5 1010.9 1013.0 1009.9 1005.3 1002.8 1004.8 1010.7 1016.8 1018.1 1017.4 1012.0 MAX. QNH PRESSURE IN HPA 1029.6 1027.7 1019.2 1022.9 1015.4 1011.6 1009.5 1010.6 1016.9 1025.8 1024.3 1026.9 1029.6 DAY 3 6 17 9 17 8 31 21 25 16 15 29 MIN. QNH PRESSURE IN HPA 1010.6 1005.6 1003.1 1005.6 1005.4 999.1 999.0 1000.5 1004.5 1009.6 1011.1 1003.7 999.0 DAY 26 2 4 30 24 30 18 29 11 30 10 26 MEAN QFF PRESSURE IN HPA 1020.6 1017.9 1010.2 1010.4 1004.5 998.2 994.9 997.4 1005.3 1014.2 1018.1 1019.1 1009.2 MAX. QFF PRESSURE IN HPA 1034.0 1031.1 1019.4 1022.8 1011.3 1004.5 1001.7 1003.1 1013.0 1024.2 1026.4 1032.0 1034.0 DAY 3 6 17 9 5 7 31 21 25 16 15 29 MIN. QFF PRESSURE IN HPA 1011.8 1005.0 1002.3 1001.3 999.1 991.6 990.6 992.4 998.7 1007.6 1009.1 1006.1 990.6 DAY 26 2 4 24 24 16 18 2 11 20 10 26 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 917.9 916.3 911.7 913.7 911.0 906.7 904.3 905.9 911.7 916.9 918.0 917.0 912.6 MAX. QFE PRESSURE IN HPA 927.0 927.5 918.5 923.1 915.3 912.2 909.3 911.2 916.8 924.6 923.6 925.8 927.5 DAY 3 6 16 8 5 8 31 21 14 16 15 29 MIN. QFE PRESSURE IN HPA 910.5 906.2 903.2 906.1 906.6 900.2 899.6 901.9 905.6 909.3 912.7 903.7 899.6 DAY 28 1 4 30 24 29 16 29 11 30 10 26 MEAN QNH PRESSURE IN HPA 1019.2 1017.4 1012.4 1014.6 1011.6 1007.0 1004.4 1006.2 1012.4 1018.1 1019.3 1018.2 1013.4 MAX. QNH PRESSURE IN HPA 1029.1 1029.6 1019.8 1024.8 1016.3 1013.0 1009.8 1011.9 1018.0 1026.5 1025.4 1027.8 1029.6 DAY 3 6 16 8 5 8 31 21 14 16 15 29 MIN. QNH PRESSURE IN HPA 1011.1 1006.4 1003.2 1006.3 1006.9 999.9 999.3 1001.8 1005.8 1009.8 1013.5 1003.7 999.3 DAY 28 1 4 30 24 29 16 29 11 30 10 26 MEAN QFF PRESSURE IN HPA 1021.4 1018.8 1011.3 1011.6 1005.9 999.6 996.1 998.4 1006.5 1014.9 1018.9 1019.9 1010.3 MAX. QFF PRESSURE IN HPA 1032.9 1033.0 1019.4 1024.0 1012.6 1006.2 1003.0 1004.3 1013.9 1025.0 1027.5 1032.5 1033.0 DAY 3 6 16 8 5 8 27 21 30 16 15 29 MIN. QFF PRESSURE IN HPA 1011.6 1006.3 1002.0 1002.1 1000.1 992.1 990.6 993.5 1000.0 1006.9 1009.6 1006.6 990.6 DAY 28 2 4 30 24 29 16 29 11 30 10 26 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 917.8 916.3 911.7 913.6 911.4 907.4 905.2 906.7 912.0 917.1 918.0 917.1 912.9 MAX. QFE PRESSURE IN HPA 927.1 927.9 919.9 923.1 916.1 911.8 909.2 911.1 917.4 924.6 923.8 925.3 927.9 DAY 2 6 16 8 16 8 26 21 30 16 15 29 MIN. QFE PRESSURE IN HPA 909.0 907.2 902.6 906.3 906.6 902.2 901.2 902.6 906.3 909.7 912.0 903.8 901.2 DAY 28 1 4 30 27 29 16 29 11 30 19 26 MEAN QNH PRESSURE IN HPA 1019.1 1017.5 1012.5 1014.5 1012.1 1007.7 1005.4 1007.0 1012.7 1018.3 1019.3 1018.3 1013.7 MAX. QNH PRESSURE IN HPA 1029.2 1030.1 1021.4 1024.8 1017.2 1012.5 1009.7 1011.8 1018.6 1026.5 1025.6 1027.2 1030.1 DAY 2 6 16 8 16 8 26 21 30 16 15 29 MIN. QNH PRESSURE IN HPA 1009.5 1007.5 1002.5 1006.6 1006.9 1002.1 1001.0 1002.5 1006.6 1010.2 1012.8 1003.8 1001.0 DAY 28 1 4 30 27 29 16 29 11 30 19 26 MEAN QFF PRESSURE IN HPA 1020.6 1018.3 1011.1 1011.2 1006.2 1000.3 997.1 999.1 1006.8 1014.6 1018.2 1019.1 1010.2 MAX. QFF PRESSURE IN HPA 1032.2 1033.2 1020.3 1023.9 1012.9 1005.4 1003.4 1004.1 1014.4 1025.0 1026.3 1031.0 1033.2 DAY 3 6 16 8 5 8 27 25 30 16 15 29 MIN. QFF PRESSURE IN HPA 1008.8 1006.5 1001.1 1001.3 1000.1 994.1 992.3 993.9 999.8 1006.4 1009.8 1006.2 992.3 DAY 28 29 4 24 27 29 17 29 11 30 10 26 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.8 1.2 11.7 19.6 24.0 30.7 33.1 31.3 25.2 19.6 12.0 7.1 18.0 MINIMUN AIR TEMPERATURE (C) -4.7 -4.0 5.1 9.7 14.2 19.5 23.5 21.0 14.7 9.9 4.2 1.6 9.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 10 24 15 0 0 0 0 50 DAYS WITH MINIMUM TEMP. <=-4 16 15 0 0 0 0 0 0 0 0 0 0 31 DAYS WITH FREEZING MIN.<= 0 29 24 1 0 0 0 0 0 0 0 3 13 70 TEMPERATURE RECORDS LOWEST(C) -11.0 -11.0 -1.0 3.0 6.0 15.6 17.2 14.0 7.5 5.0 -1.6 -2.6 -11.0 DAY 31 1 31 1 2 2 31 31 24 24 23 8 MAXIMUM AIR TEMPERATURE (C) 7.3 7.5 18.4 27.8 32.3 39.3 41.1 39.8 34.7 29.0 20.0 14.0 25.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 9 22 30 31 31 24 13 0 0 160 DAYS WITH MAXIMUM TEMP. <= 0 1 0 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS HIGHEST(C) 12.0 19.0 24.4 33.6 40.0 44.2 45.6 42.4 41.0 35.2 25.0 20.0 45.6 DAY 1 28 25 15 26 30 13 5 2 8 28 1 DIF. BETWEEN (MAX.-MIN.) (C) 12.0 11.5 13.3 18.1 18.1 19.8 17.6 18.8 20.0 19.1 15.8 12.4 16.3 MEAN DAILY TEMP. (MDT) (C) 1.3 1.7 11.7 18.7 23.2 29.4 32.3 30.4 24.7 19.4 12.1 7.8 17.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 7.5 80.6 252.7 350.0 292.3 122.0 21.9 0.0 0.0 1127.1 HEATING DEG. DAYS(BASE 18 0C) 517.4 455.6 193.8 26.0 1.7 0.0 0.0 0.0 0.0 20.8 177.7 316.8 1709.8 DEWPOINT (MEAN C) -6.4 -5.9 1.5 -1.6 0.4 1.5 4.2 2.3 -0.6 -1.3 -0.1 0.5 -0.5 MIXING RATIO (G/KG) 2.66 2.84 4.83 3.90 4.57 4.91 5.94 5.14 4.30 3.96 4.33 4.46 4.32 VAPOUR PRESSURE (HPA) 3.91 4.18 7.03 5.70 6.66 7.10 8.57 7.45 6.25 5.80 6.34 6.53 6.29 SATURATION DEF. (HPA) 2.87 2.93 7.30 18.55 25.44 39.62 44.50 40.70 28.75 18.93 8.48 4.02 20.17 RELATIVE HUMIDITY (MEAN %) 62 62 54 28 26 18 18 18 21 28 47 66 37 RELATIVE HUMIDITY (MAX. %) 80 80 76 50 45 32 32 31 38 43 68 84 55 RELATIVE HUMIDITY (MIN. %) 39 40 32 13 13 9 10 9 10 15 26 41 21 RELATIVE HUMIDITY (MEAN% 03UTC) 75 73 69 49 40 31 32 30 35 41 67 80 52 RELATIVE HUMIDITY (MEAN% 09UTC) 47 47 39 16 17 11 13 12 17 18 33 48 27 RELATIVE HUMIDITY (MEAN% 15UTC) 53 58 42 18 17 10 10 10 13 21 37 57 29 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 30.4 32.4 16.3 0.4 5.6 8.0 0.0 0.0 0.0 0.0 7.2 38.5 138.8 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 0 1 1 DAYS WITH PRECIPITATION >= 5 3 4 1 0 1 1 0 0 0 0 0 3 13 DAYS WITH PRECIPITATION >= 1 6 6 5 0 1 1 0 0 0 0 4 4 27 DAYS WITH PRECIPITATION 9 8 8 2 4 1 0 0 0 0 4 6 42 GREATEST DAILY PRECIPITATION 8.1 9.3 6.0 0.3 5.4 8.0 0.0 0.0 0.0 0.0 4.0 18.6 18.6 DAY 29 22 16 29 7 7 ** ** ** ** 12 4 DAY WITH THUNDER STORM 0 0 1 0 0 0 0 0 0 0 0 0 1 DAYS WITH SNOW OR SLEET 8 6 0 0 0 0 0 0 0 0 0 0 14 DAYS WITH DUST 0 1 0 2 1 1 2 1 0 1 0 0 9 WIND DIRECTION (PREVAILING) 270 270 270 270 270 90 90 90 90 315 270 270 270 PREVAILING WIND SPEED(KNOTS) 8.6 8.4 10.0 8.8 8.7 8.6 10.8 9.4 6.6 7.5 6.7 8.1 8.5 PREVAILING WIND PERCENT 23.4 42.4 28.6 27.5 22.2 15.8 42.3 49.2 17.9 15.3 14.2 12.5 18.4 CALMS PERCENT OF WIND 64.9 40.2 42.3 37.1 43.5 41.3 37.4 33.9 45.0 50.0 68.8 75.4 48.4 NO. OF WIND OBSERVATION 248 224 248 240 248 240 246 248 240 248 240 248 2918 VECTOR WIND DIRECTION (MEAN) 278 283 282 290 290 323 95 95 325 304 283 282 302 VECTOR WIND MAGNITUDE(KNOTS) 2.2 4.4 3.3 3.0 1.7 0.5 4.6 5.3 1.0 1.3 1.0 1.1 0.8 WIND STEADINESES (MEAN %) 75.9 89.8 66.0 54.5 37.0 10.2 74.2 89.8 24.4 34.2 50.0 61.1 18.6 WIND SPEED (MEAN KNOTS) 2.9 4.9 5.0 5.5 4.6 4.9 6.2 5.9 4.1 3.8 2.0 1.8 4.3 FASTEST WIND DIRECTION 280 300 270 310 290 290 110 90 330 300 270 280 290 FASTEST WIND SPEED (KNOTS) 21 29 29 27 35 23 25 19 21 23 19 31 35 DAY 26 28 30 29 18 1 4 6 19 2 25 5 DAYS WITH SKY CLEAR (0-2)/8 15 15 11 10 20 29 30 27 28 24 19 15 243 DAYS WITH P.CLOUDY (3-6)/8 10 6 8 16 9 1 1 4 2 6 9 11 83 DAYS WITH CLOUDY (7-8)/8 6 7 12 4 2 0 0 0 0 1 2 5 39 DAYS WITH VISIBILITY =< 2 KM 4 4 0 0 0 0 0 0 0 0 0 0 8 DURATION OF SUNSHINE HOURS 193.2 203.3 211.9 272.3 322.0 373.8 373.0 348.1 319.7 281.0 223.4 192.2 3313.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 918.1 920.0 913.1 914.8 912.8 907.6 907.7 908.2 911.3 916.9 918.4 916.9 913.8 MAX. QFE PRESSURE IN HPA 926.7 929.4 920.2 921.8 920.7 913.0 914.2 915.7 924.0 925.0 925.0 923.2 929.4 DAY-HOUR 27- 6 4- 6 7- 6 2- 6 1- 6 2- 6 21- 6 20- 6 23- 6 25- 6 22- 6 18- 6 MIN. QFE PRESSURE IN HPA 909.6 909.5 901.0 908.5 902.5 900.2 900.2 899.4 903.5 908.0 912.6 908.8 899.4 DAY-HOUR 17-12 23- 0 29-15 29- 9 31-15 10-15 5-15 1-18 11-15 1-15 19-15 5- 0 MEAN QNH PRESSURE IN HPA 1019.4 1021.5 1013.9 1015.8 1013.6 1007.9 1008.0 1008.6 1012.0 1018.0 1019.7 1018.1 1014.7 MAX. QNH PRESSURE IN HPA 1028.8 1031.7 1021.7 1023.4 1022.2 1013.8 1015.2 1016.8 1025.8 1026.9 1026.9 1024.9 1031.7 DAY-HOUR 27- 6 4- 6 7- 6 2- 6 1- 6 2- 6 21- 6 20- 6 23- 6 25- 6 22- 6 18- 6 MIN. QNH PRESSURE IN HPA 1010.1 1010.0 1000.8 1008.9 1002.4 999.9 999.9 999.0 1003.5 1008.4 1013.4 1009.3 999.0 DAY-HOUR 17-12 23- 0 29-15 29- 9 31-15 10-15 5-15 1-18 11-15 1-15 19-15 5- 0 MEAN QFF PRESSURE IN HPA 1022.8 1024.9 1013.0 1012.1 1008.4 1000.4 999.7 1000.8 1006.3 1014.3 1018.7 1018.9 1011.7 MAX. QFF PRESSURE IN HPA 1034.0 1038.1 1021.5 1022.1 1019.6 1007.8 1006.8 1010.1 1022.4 1025.6 1028.0 1027.0 1038.1 DAY-HOUR 30- 6 4- 6 7- 6 2- 6 1- 6 2- 3 21- 6 20- 6 23- 6 25- 6 22- 6 18- 6 MIN. QFF PRESSURE IN HPA 1012.4 1010.4 999.9 1003.3 995.7 992.3 991.4 991.1 996.7 1004.1 1011.9 1008.9 991.1 DAY-HOUR 17-12 23- 0 29-12 29- 9 31-15 30-18 5-15 1-18 11-12 1-15 19-12 5- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 918.0 919.7 912.9 914.9 912.8 907.9 907.8 908.2 911.3 916.9 918.4 916.8 913.8 MAX. QFE PRESSURE IN HPA 925.2 926.6 919.2 919.6 917.4 911.1 912.1 913.3 921.5 923.6 922.6 922.0 926.6 DAY 31 4 8 2 1 4 20 20 24 25 8 19 MIN. QFE PRESSURE IN HPA 910.9 909.5 903.8 909.2 908.5 903.0 902.2 901.6 906.0 910.0 912.8 908.8 901.6 DAY 12 23 29 29 31 10 6 2 12 2 20 5 MEAN QNH PRESSURE IN HPA 1019.3 1021.1 1013.8 1015.9 1013.7 1008.2 1008.2 1008.6 1012.0 1018.1 1019.7 1017.9 1014.7 MAX. QNH PRESSURE IN HPA 1027.1 1028.6 1020.6 1021.0 1018.6 1011.8 1012.9 1014.2 1023.1 1025.4 1024.3 1023.6 1028.6 DAY 31 4 8 2 1 4 20 20 24 25 8 19 MIN. QNH PRESSURE IN HPA 1011.6 1010.0 1003.8 1009.7 1008.9 1003.0 1002.1 1001.4 1006.2 1010.6 1013.6 1009.3 1001.4 DAY 12 23 29 29 31 10 6 2 12 2 20 5 MEAN QFF PRESSURE IN HPA 1022.2 1024.1 1012.6 1012.2 1008.6 1000.8 999.8 1000.7 1006.0 1013.9 1018.3 1018.3 1011.4 MAX. QFF PRESSURE IN HPA 1032.8 1034.0 1018.7 1020.0 1015.6 1005.0 1005.6 1007.1 1020.1 1023.6 1024.3 1024.9 1034.0 DAY 31 4 1 2 1 4 23 20 24 25 23 19 MIN. QFF PRESSURE IN HPA 1012.9 1010.4 1002.4 1004.0 1002.4 995.1 993.6 993.1 999.4 1004.9 1012.1 1008.9 993.1 DAY 3 23 28 29 31 30 2 2 12 2 20 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 918.2 920.0 913.7 915.8 914.2 909.4 909.3 909.7 912.7 917.8 919.1 917.2 914.8 MAX. QFE PRESSURE IN HPA 925.3 927.0 919.0 920.9 919.5 912.5 913.8 915.0 922.6 924.1 923.3 921.2 927.0 DAY 27 4 8 2 1 2 20 20 23 25 8 18 MIN. QFE PRESSURE IN HPA 910.2 909.5 904.4 909.6 909.5 904.5 904.0 903.8 906.8 911.5 914.4 909.5 903.8 DAY 17 23 29 29 31 10 6 2 12 2 20 5 MEAN QNH PRESSURE IN HPA 1019.5 1021.5 1014.6 1016.9 1015.2 1009.9 1009.8 1010.3 1013.5 1019.1 1020.5 1018.4 1015.8 MAX. QNH PRESSURE IN HPA 1027.2 1029.1 1020.4 1022.4 1020.9 1013.3 1014.7 1016.0 1024.3 1025.9 1025.1 1022.8 1029.1 DAY 27 4 8 2 1 2 20 20 23 25 8 18 MIN. QNH PRESSURE IN HPA 1010.8 1010.0 1004.5 1010.1 1010.0 1004.6 1004.0 1003.8 1007.1 1012.2 1015.4 1010.0 1003.8 DAY 17 23 29 29 31 10 6 2 12 2 20 5 MEAN QFF PRESSURE IN HPA 1023.2 1025.3 1013.9 1014.0 1010.3 1002.6 1001.6 1002.9 1008.3 1016.1 1020.2 1019.5 1013.2 MAX. QFF PRESSURE IN HPA 1032.3 1035.2 1020.1 1021.6 1018.3 1007.8 1006.5 1009.4 1021.5 1025.4 1026.2 1025.0 1035.2 DAY 31 4 7 2 1 2 23 20 23 25 22 18 MIN. QFF PRESSURE IN HPA 1013.5 1011.5 1003.9 1005.2 1003.6 997.1 995.9 996.3 1000.5 1007.5 1015.5 1009.7 995.9 DAY 12 23 16 29 31 30 2 2 12 2 20 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 919.5 921.4 914.8 916.7 914.8 909.9 910.1 910.7 913.7 919.1 920.5 918.6 915.8 MAX. QFE PRESSURE IN HPA 926.7 929.4 920.2 921.8 920.7 913.0 914.2 915.7 924.0 925.0 925.0 923.2 929.4 DAY 27 4 7 2 1 2 21 20 23 25 22 18 MIN. QFE PRESSURE IN HPA 910.4 910.1 904.8 910.0 909.8 904.5 905.5 904.8 907.5 912.6 916.0 912.6 904.5 DAY 17 23 29 29 31 10 1 2 12 2 16 5 MEAN QNH PRESSURE IN HPA 1021.0 1023.0 1015.8 1017.9 1015.8 1010.5 1010.7 1011.3 1014.6 1020.5 1022.0 1019.9 1016.9 MAX. QNH PRESSURE IN HPA 1028.8 1031.7 1021.7 1023.4 1022.2 1013.8 1015.2 1016.8 1025.8 1026.9 1026.9 1024.9 1031.7 DAY 27 4 7 2 1 2 21 20 23 25 22 18 MIN. QNH PRESSURE IN HPA 1011.0 1010.7 1004.9 1010.6 1010.4 1004.6 1005.7 1004.9 1007.9 1013.4 1017.1 1013.4 1004.6 DAY 17 23 29 29 31 10 1 2 12 2 16 5 MEAN QFF PRESSURE IN HPA 1024.8 1026.9 1015.0 1014.1 1010.5 1002.8 1002.2 1003.5 1008.9 1016.9 1021.3 1021.2 1014.0 MAX. QFF PRESSURE IN HPA 1034.0 1038.1 1021.5 1022.1 1019.6 1007.7 1006.8 1010.1 1022.4 1025.6 1028.0 1027.0 1038.1 DAY 30 4 7 2 1 2 21 20 23 25 22 18 MIN. QFF PRESSURE IN HPA 1013.8 1012.0 1003.8 1004.9 1003.0 996.9 996.5 996.8 1001.3 1008.7 1016.7 1013.8 996.5 DAY 17 23 29 29 31 30 1 2 12 2 16 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 918.4 920.6 913.6 915.2 913.2 908.3 908.5 909.0 911.9 917.2 918.6 917.0 914.3 MAX. QFE PRESSURE IN HPA 925.6 928.8 919.7 920.1 917.1 911.5 912.9 914.4 922.4 924.1 923.7 922.2 928.8 DAY 27 4 8 2 1 2 20 19 23 24 8 18 MIN. QFE PRESSURE IN HPA 910.2 910.8 902.4 908.5 906.5 902.4 903.7 902.2 906.0 910.5 914.4 911.7 902.2 DAY 17 23 29 29 31 10 6 1 11 1 16 5 MEAN QNH PRESSURE IN HPA 1019.7 1022.1 1014.5 1016.2 1014.1 1008.7 1008.9 1009.5 1012.7 1018.4 1019.9 1018.2 1015.2 MAX. QNH PRESSURE IN HPA 1027.6 1031.0 1021.1 1021.6 1018.3 1012.2 1013.7 1015.4 1024.1 1025.9 1025.5 1023.9 1031.0 DAY 27 4 8 2 1 2 20 19 23 24 8 18 MIN. QNH PRESSURE IN HPA 1010.8 1011.5 1002.3 1008.9 1006.8 1002.3 1003.7 1002.1 1006.2 1011.1 1015.4 1012.4 1002.1 DAY 17 23 29 29 31 10 6 1 11 1 16 5 MEAN QFF PRESSURE IN HPA 1022.7 1025.3 1013.3 1012.2 1008.7 1001.0 1000.5 1001.5 1006.6 1014.3 1018.5 1018.6 1011.9 MAX. QFF PRESSURE IN HPA 1032.2 1036.3 1020.1 1020.1 1015.5 1005.8 1005.1 1008.0 1020.4 1024.0 1025.0 1025.4 1036.3 DAY 30 4 8 2 1 2 25 19 23 25 22 18 MIN. QFF PRESSURE IN HPA 1012.7 1011.8 1001.1 1003.3 999.4 994.8 995.1 994.6 998.6 1006.6 1014.1 1012.3 994.6 DAY 17 23 29 29 31 10 6 1 11 1 20 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 916.9 919.1 911.8 913.2 911.4 906.2 906.4 906.7 909.8 915.3 917.0 915.7 912.4 MAX. QFE PRESSURE IN HPA 923.4 926.5 917.8 917.9 916.0 909.2 910.9 911.8 920.0 921.9 921.6 921.4 926.5 DAY 30 4 8 2 1 3 20 19 23 24 8 18 MIN. QFE PRESSURE IN HPA 909.6 910.7 901.2 908.8 903.5 901.2 901.8 901.2 903.8 908.8 912.7 912.4 901.2 DAY 17 22 29 29 31 10 5 1 11 1 16 5 MEAN QNH PRESSURE IN HPA 1018.1 1020.5 1012.5 1014.0 1012.1 1006.4 1006.7 1007.0 1010.3 1016.4 1018.2 1016.8 1013.2 MAX. QNH PRESSURE IN HPA 1025.2 1028.5 1019.1 1019.2 1017.1 1009.7 1011.6 1012.5 1021.5 1023.5 1023.2 1023.0 1028.5 DAY 30 4 8 2 1 3 20 19 23 24 8 18 MIN. QNH PRESSURE IN HPA 1010.1 1011.3 1001.0 1009.3 1003.5 1001.0 1001.6 1001.0 1003.8 1009.3 1013.5 1013.2 1001.0 DAY 17 22 29 29 31 10 5 1 11 1 16 5 MEAN QFF PRESSURE IN HPA 1021.0 1023.3 1011.3 1010.2 1007.0 998.9 998.3 999.1 1004.4 1012.2 1016.7 1017.1 1010.0 MAX. QFF PRESSURE IN HPA 1029.8 1033.8 1017.8 1017.8 1014.3 1003.3 1003.1 1005.2 1017.4 1022.1 1022.4 1024.1 1033.8 DAY 30 4 7 2 1 2 23 19 23 25 22 18 MIN. QFF PRESSURE IN HPA 1012.4 1011.4 999.9 1004.4 996.7 993.3 991.9 992.8 996.7 1004.7 1011.9 1012.8 991.9 DAY 17 23 29 29 31 30 14 2 11 1 19 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.3 919.3 911.9 913.1 911.0 905.4 905.4 906.0 909.2 915.3 917.3 916.3 912.3 MAX. QFE PRESSURE IN HPA 923.8 925.8 917.9 917.3 915.2 908.7 910.0 911.5 920.0 922.7 921.8 922.6 925.8 DAY 30 4 8 2 1 13 20 19 23 24 8 18 MIN. QFE PRESSURE IN HPA 911.1 911.2 901.0 910.0 902.5 900.2 900.2 900.2 903.5 908.0 912.6 912.1 900.2 DAY 2 22 29 29 31 10 5 1 11 1 19 31 MEAN QNH PRESSURE IN HPA 1018.6 1020.7 1012.7 1013.9 1011.7 1005.5 1005.6 1006.2 1009.7 1016.3 1018.5 1017.5 1013.1 MAX. QNH PRESSURE IN HPA 1025.6 1027.8 1019.2 1018.5 1016.2 1009.2 1010.6 1012.2 1021.5 1024.4 1023.4 1024.3 1027.8 DAY 30 4 8 2 1 13 20 19 23 24 8 18 MIN. QNH PRESSURE IN HPA 1011.8 1011.9 1000.8 1010.6 1002.4 999.9 999.9 999.9 1003.5 1008.4 1013.4 1012.9 999.9 DAY 2 22 29 29 31 10 5 1 11 1 19 31 MEAN QFF PRESSURE IN HPA 1022.3 1024.3 1011.9 1010.9 1006.8 998.2 997.5 998.8 1004.6 1013.3 1018.2 1018.6 1010.4 MAX. QFF PRESSURE IN HPA 1031.2 1033.4 1018.1 1017.4 1013.7 1002.5 1002.9 1005.4 1018.5 1023.7 1024.6 1026.3 1033.4 DAY 30 4 8 1 1 2 22 19 23 24 22 18 MIN. QFF PRESSURE IN HPA 1014.1 1013.1 1000.0 1006.4 995.7 992.5 991.4 992.8 996.8 1004.1 1013.2 1013.1 991.4 DAY 2 22 29 15 31 30 5 1 11 1 19 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 918.3 920.2 913.0 914.7 912.3 906.5 906.6 907.3 910.7 916.6 918.2 917.0 913.4 MAX. QFE PRESSURE IN HPA 925.4 927.4 918.6 918.8 916.8 910.4 911.2 912.7 920.5 923.2 922.6 923.0 927.4 DAY 30 3 7 10 14 3 20 19 23 24 8 18 MIN. QFE PRESSURE IN HPA 912.0 910.7 903.5 911.2 905.4 901.5 901.5 899.4 905.4 909.8 913.4 912.1 899.4 DAY 11 22 29 28 31 30 6 1 11 1 19 4 MEAN QNH PRESSURE IN HPA 1019.6 1021.7 1013.9 1015.6 1013.1 1006.8 1006.9 1007.6 1011.4 1017.7 1019.5 1018.2 1014.3 MAX. QNH PRESSURE IN HPA 1027.3 1029.5 1019.9 1020.2 1018.0 1011.0 1011.9 1013.5 1022.0 1024.9 1024.3 1024.7 1029.5 DAY 30 3 7 10 14 3 20 19 23 24 8 18 MIN. QNH PRESSURE IN HPA 1012.8 1011.3 1003.5 1011.9 1005.6 1001.3 1001.3 999.0 1005.6 1010.4 1014.3 1012.9 999.0 DAY 11 22 29 28 31 30 6 1 11 1 19 4 MEAN QFF PRESSURE IN HPA 1023.4 1025.3 1013.0 1011.8 1007.6 999.1 998.4 999.8 1005.7 1014.2 1018.7 1019.4 1011.4 MAX. QFF PRESSURE IN HPA 1033.2 1035.0 1019.5 1018.6 1015.1 1003.9 1003.6 1006.6 1018.4 1023.6 1025.0 1026.6 1035.0 DAY 30 3 7 1 1 3 28 19 23 24 22 18 MIN. QFF PRESSURE IN HPA 1014.7 1012.7 1002.7 1006.3 998.0 992.3 992.9 991.1 999.0 1005.8 1013.6 1012.4 991.1 DAY 11 22 29 28 31 30 6 1 11 1 19 4 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 918.3 920.0 913.2 915.0 912.7 907.2 907.3 907.9 911.2 916.9 918.3 916.9 913.7 MAX. QFE PRESSURE IN HPA 925.7 926.9 918.9 919.4 916.6 911.1 911.3 913.1 921.0 923.4 922.6 923.0 926.9 DAY 30 3 7 1 1 3 19 19 23 24 8 18 MIN. QFE PRESSURE IN HPA 911.5 909.8 904.3 911.2 906.6 902.0 902.2 901.0 906.0 910.0 912.8 910.4 901.0 DAY 2 22 15 28 31 9 5 1 11 1 19 4 MEAN QNH PRESSURE IN HPA 1019.6 1021.5 1014.1 1016.1 1013.5 1007.6 1007.6 1008.3 1011.8 1018.0 1019.6 1018.1 1014.6 MAX. QNH PRESSURE IN HPA 1027.7 1029.0 1020.3 1020.8 1017.8 1011.8 1012.0 1014.0 1022.6 1025.2 1024.3 1024.7 1029.0 DAY 30 3 7 1 1 3 19 19 23 24 8 18 MIN. QNH PRESSURE IN HPA 1012.2 1010.4 1004.4 1011.9 1006.9 1001.9 1002.1 1000.8 1006.2 1010.6 1013.6 1011.0 1000.8 DAY 2 22 15 28 31 9 5 1 11 1 19 4 MEAN QFF PRESSURE IN HPA 1022.7 1024.5 1012.8 1012.0 1007.9 999.9 999.2 1000.3 1005.9 1014.0 1018.1 1018.6 1011.3 MAX. QFF PRESSURE IN HPA 1033.3 1034.2 1019.1 1019.4 1015.1 1004.5 1004.2 1006.7 1019.2 1023.5 1024.1 1026.2 1034.2 DAY 30 3 7 1 1 3 22 19 23 24 22 18 MIN. QFF PRESSURE IN HPA 1013.3 1011.0 1002.5 1005.9 998.8 992.7 993.5 992.3 998.8 1005.3 1012.1 1010.6 992.3 DAY 2 22 15 28 31 30 5 1 11 1 19 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.7 5.4 11.1 17.9 25.1 30.9 32.2 31.5 26.3 18.5 12.3 5.3 18.3 MINIMUN AIR TEMPERATURE (C) -1.9 0.2 4.0 9.1 15.1 19.9 23.3 21.8 14.6 9.9 3.3 -1.7 9.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 13 28 21 0 0 0 0 62 DAYS WITH MINIMUM TEMP. <=-4 9 1 2 0 0 0 0 0 0 0 0 9 21 DAYS WITH FREEZING MIN.<= 0 22 16 5 0 0 0 0 0 0 0 10 20 73 TEMPERATURE RECORDS LOWEST(C) -6.0 -4.0 -5.0 4.0 11.0 13.0 18.2 18.0 11.0 3.0 -2.8 -10.0 -10.0 DAY 14 1 21 3 15 1 20 8 30 20 15 27 MAXIMUM AIR TEMPERATURE (C) 8.0 11.2 18.6 26.0 34.1 39.6 40.2 40.0 37.1 27.4 22.1 12.9 26.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 7 28 30 31 31 30 11 0 0 168 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 14.0 19.0 24.0 34.6 40.8 43.0 44.2 44.0 40.0 33.0 28.0 22.0 44.2 DAY 5 28 8 27 25 29 28 6 6 1 7 1 DIF. BETWEEN (MAX.-MIN.) (C) 9.9 11.0 14.6 16.9 19.0 19.7 16.9 18.2 22.5 17.5 18.8 14.6 16.6 MEAN DAILY TEMP. (MDT) (C) 3.0 5.7 11.3 17.6 24.6 29.7 31.7 30.9 25.9 18.7 12.7 5.6 18.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 15.2 118.0 262.3 332.7 305.9 145.7 8.5 0.0 0.0 1188.4 HEATING DEG. DAYS(BASE 18 0C) 464.2 344.4 208.6 51.3 0.0 0.0 0.0 0.0 0.0 30.8 159.1 384.1 1642.5 DEWPOINT (MEAN C) -2.3 -1.5 -2.2 -0.5 -0.1 -0.7 4.7 5.3 -1.0 1.4 -2.5 -5.1 -0.4 MIXING RATIO (G/KG) 3.60 3.82 3.73 4.30 4.36 4.23 6.12 6.37 4.10 4.85 3.61 2.96 4.34 VAPOUR PRESSURE (HPA) 5.28 5.59 5.46 6.25 6.34 6.12 8.83 9.20 5.96 7.09 5.30 4.35 6.31 SATURATION DEF. (HPA) 2.36 3.74 8.61 15.86 27.77 41.16 41.67 39.48 31.22 15.76 10.39 5.42 20.29 RELATIVE HUMIDITY (MEAN %) 72 65 44 35 23 15 20 22 20 36 39 51 37 RELATIVE HUMIDITY (MAX. %) 88 83 69 61 40 28 33 37 36 54 60 70 55 RELATIVE HUMIDITY (MIN. %) 49 46 22 16 10 7 11 12 8 19 19 30 21 RELATIVE HUMIDITY (MEAN% 03UTC) 82 79 64 56 37 26 32 37 36 52 60 68 52 RELATIVE HUMIDITY (MEAN% 09UTC) 58 52 28 20 15 10 14 15 11 23 22 35 25 RELATIVE HUMIDITY (MEAN% 15UTC) 67 57 32 24 14 8 13 13 12 30 30 45 29 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 25.3 27.5 1.0 6.4 0.4 0.0 0.8 0.0 0.0 13.0 0.0 16.0 90.4 DAYS WITH PRECIPITATION >=10 0 1 0 0 0 0 0 0 0 0 0 1 2 DAYS WITH PRECIPITATION >= 5 2 2 0 0 0 0 0 0 0 2 0 1 7 DAYS WITH PRECIPITATION >= 1 6 6 0 2 0 0 0 0 0 3 0 2 19 DAYS WITH PRECIPITATION 13 8 3 4 2 0 2 0 0 3 0 2 37 GREATEST DAILY PRECIPITATION 9.4 10.0 0.6 4.0 0.2 0.0 0.6 0.0 0.0 6.0 0.0 13.0 13.0 DAY 8 10 27 2 12 ** 7 ** ** 27 ** 25 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 1 0 0 1 DAYS WITH SNOW OR SLEET 7 4 0 0 0 0 0 0 0 0 0 1 12 DAYS WITH DUST 1 1 1 2 2 1 4 1 0 0 0 0 13 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 90 90 90 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 8.5 9.2 9.4 7.6 9.1 8.0 10.1 11.0 7.6 8.3 6.6 7.1 8.0 PREVAILING WIND PERCENT 17.7 25.4 19.8 36.3 31.0 24.2 44.8 38.7 19.6 16.1 9.2 13.7 18.1 CALMS PERCENT OF WIND 68.1 52.2 45.6 32.5 29.4 36.3 32.7 41.5 55.0 59.3 74.6 64.9 49.3 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 282 287 284 288 294 300 90 92 84 297 281 298 312 VECTOR WIND MAGNITUDE(KNOTS) 1.8 3.1 2.1 3.9 3.1 1.3 4.8 4.4 1.2 1.2 0.7 1.1 0.8 WIND STEADINESES (MEAN %) 72.0 75.6 46.7 68.4 47.7 25.5 78.7 77.2 38.7 38.7 46.7 45.8 19.0 WIND SPEED (MEAN KNOTS) 2.5 4.1 4.5 5.7 6.5 5.1 6.1 5.7 3.1 3.1 1.5 2.4 4.2 FASTEST WIND DIRECTION 260 290 280 300 310 90 110 120 100 270 270 320 310 FASTEST WIND SPEED (KNOTS) 25 41 39 27 43 19 23 23 16 29 19 23 43 DAY 23 16 14 29 12 12 17 6 9 27 12 25 DAYS WITH SKY CLEAR (0-2)/8 6 11 17 14 24 27 21 28 30 23 22 14 237 DAYS WITH P.CLOUDY (3-6)/8 16 6 8 11 5 3 10 3 0 6 7 16 91 DAYS WITH CLOUDY (7-8)/8 9 11 6 5 2 0 0 0 0 2 1 1 37 DAYS WITH VISIBILITY =< 2 KM 1 2 1 0 1 0 0 0 0 0 0 1 6 DURATION OF SUNSHINE HOURS 152.1 159.4 219.6 ****** ****** ****** ****** ****** ****** ****** 244.7 194.0 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 918.4 915.0 917.2 911.7 910.8 907.2 906.6 907.6 910.5 917.0 918.7 918.6 913.3 MAX. QFE PRESSURE IN HPA 928.6 926.1 928.0 918.8 919.0 916.4 913.1 914.2 916.6 928.1 928.5 930.6 930.6 DAY-HOUR 26- 6 8- 6 10- 6 24- 6 15- 6 1- 6 17- 6 29- 6 24- 6 19- 6 23- 6 28- 6 MIN. QFE PRESSURE IN HPA 910.0 902.8 907.2 900.7 902.9 899.4 900.0 900.7 904.6 908.1 909.4 909.6 899.4 DAY-HOUR 23- 3 15-15 24-15 15-15 12- 9 26-15 4-15 8-15 1-15 1-15 1-12 25- 3 MEAN QNH PRESSURE IN HPA 1019.7 1016.0 1018.4 1012.4 1011.4 1007.5 1006.9 1008.0 1011.1 1018.1 1020.0 1019.9 1014.1 MAX. QNH PRESSURE IN HPA 1030.8 1028.1 1030.2 1020.2 1020.4 1017.5 1014.0 1015.2 1017.8 1030.3 1030.7 1033.0 1033.0 DAY-HOUR 26- 6 8- 6 10- 6 24- 6 15- 6 1- 6 17- 6 29- 6 24- 6 19- 6 23- 6 28- 6 MIN. QNH PRESSURE IN HPA 1010.6 1002.7 1007.5 1000.5 1002.8 999.0 999.7 1000.5 1004.7 1008.5 1009.9 1010.1 999.0 DAY-HOUR 23- 3 15-15 24-15 15-15 12- 9 26-15 4-15 8-15 1-15 1-15 1-12 25- 3 MEAN QFF PRESSURE IN HPA 1022.3 1017.5 1017.8 1009.3 1005.8 999.9 998.8 1000.0 1005.0 1014.8 1019.0 1021.6 1011.0 MAX. QFF PRESSURE IN HPA 1035.6 1031.1 1032.1 1017.8 1016.6 1011.8 1005.9 1008.5 1012.5 1029.2 1031.7 1039.2 1039.2 DAY-HOUR 26- 6 8- 6 21- 6 3- 6 15- 6 1- 6 9- 6 29- 6 27- 6 19- 6 23- 6 28- 6 MIN. QFF PRESSURE IN HPA 1011.9 1003.4 1005.7 996.5 998.3 990.5 992.0 993.1 998.0 1003.7 1005.9 1012.1 990.5 DAY-HOUR 2- 0 15-15 14-12 15-12 12- 9 27-12 29-15 8-18 5-12 1-15 1-12 25- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 918.0 914.8 917.2 911.9 910.9 907.6 906.6 907.6 910.3 917.0 918.5 918.5 913.2 MAX. QFE PRESSURE IN HPA 926.1 923.5 925.4 916.6 916.5 914.6 910.0 911.7 914.6 925.8 927.0 927.8 927.8 DAY 26 8 10 25 15 1 9 30 28 16 23 28 MIN. QFE PRESSURE IN HPA 910.5 905.1 911.6 906.0 904.1 900.8 903.2 903.6 907.0 909.6 910.1 912.0 900.8 DAY 23 16 25 16 13 27 5 8 6 1 1 25 MEAN QNH PRESSURE IN HPA 1019.3 1015.8 1018.4 1012.6 1011.6 1007.9 1006.9 1007.9 1010.9 1018.2 1019.9 1019.9 1014.1 MAX. QNH PRESSURE IN HPA 1028.1 1025.3 1027.3 1017.8 1017.7 1015.6 1010.6 1012.4 1015.6 1027.8 1029.1 1030.0 1030.0 DAY 26 8 10 25 15 1 9 30 28 16 23 28 MIN. QNH PRESSURE IN HPA 1011.1 1005.2 1012.3 1006.2 1004.2 1000.6 1003.2 1003.6 1007.3 1010.1 1010.7 1012.8 1000.6 DAY 23 16 25 16 13 27 5 8 6 1 1 25 MEAN QFF PRESSURE IN HPA 1021.5 1017.0 1017.6 1009.4 1005.9 1000.4 998.6 999.9 1004.5 1014.5 1018.3 1021.0 1010.7 MAX. QFF PRESSURE IN HPA 1032.7 1027.8 1030.0 1014.5 1013.5 1010.4 1002.8 1005.4 1010.1 1025.4 1028.6 1035.2 1035.2 DAY 26 8 21 25 15 1 9 30 28 19 23 28 MIN. QFF PRESSURE IN HPA 1011.9 1004.6 1009.9 1002.3 998.7 991.7 994.1 995.7 1000.3 1005.1 1006.8 1013.3 991.7 DAY 2 16 25 29 12 27 28 20 5 1 1 19 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 918.2 915.3 918.0 912.9 912.2 909.1 908.2 909.4 911.7 917.9 919.1 918.9 914.2 MAX. QFE PRESSURE IN HPA 927.0 924.3 926.0 918.2 918.0 915.7 912.0 912.7 915.5 926.4 927.3 928.4 928.4 DAY 26 8 10 25 16 1 9 29 28 16 23 28 MIN. QFE PRESSURE IN HPA 910.0 906.3 912.7 907.4 905.1 901.6 904.4 905.4 907.2 911.1 910.1 909.6 901.6 DAY 23 16 25 16 13 27 2 8 5 1 1 25 MEAN QNH PRESSURE IN HPA 1019.6 1016.3 1019.3 1013.8 1013.0 1009.6 1008.6 1009.9 1012.4 1019.1 1020.5 1020.2 1015.2 MAX. QNH PRESSURE IN HPA 1029.1 1026.1 1028.0 1019.5 1019.3 1016.8 1012.8 1013.5 1016.6 1028.4 1029.4 1030.6 1030.6 DAY 26 8 10 25 16 1 9 29 28 16 23 28 MIN. QNH PRESSURE IN HPA 1010.6 1006.6 1013.5 1007.7 1005.2 1001.4 1004.5 1005.6 1007.5 1011.8 1010.7 1010.1 1001.4 DAY 23 16 25 16 13 27 2 8 5 1 1 25 MEAN QFF PRESSURE IN HPA 1022.4 1018.3 1019.2 1011.1 1007.6 1002.3 1000.7 1002.3 1007.1 1016.5 1020.2 1022.4 1012.5 MAX. QFF PRESSURE IN HPA 1034.0 1028.6 1031.1 1017.3 1015.2 1011.7 1005.4 1006.7 1012.1 1027.3 1030.5 1037.0 1037.0 DAY 26 8 21 3 15 1 9 30 28 16 23 28 MIN. QFF PRESSURE IN HPA 1012.4 1007.6 1011.4 1002.7 999.0 992.9 996.0 997.4 1001.2 1006.8 1008.2 1012.1 992.9 DAY 23 16 25 29 12 27 28 20 5 1 1 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 919.8 916.5 919.1 913.7 912.8 909.6 909.0 910.2 913.0 919.1 920.5 920.2 915.3 MAX. QFE PRESSURE IN HPA 928.6 926.1 928.0 918.8 919.0 916.4 913.1 914.2 916.6 928.1 928.5 930.6 930.6 DAY 26 8 10 24 15 1 17 29 24 19 23 28 MIN. QFE PRESSURE IN HPA 912.5 907.7 914.0 907.8 904.9 902.4 905.1 906.5 908.5 911.9 912.0 911.1 902.4 DAY 23 16 25 16 13 27 2 8 5 14 1 25 MEAN QNH PRESSURE IN HPA 1021.3 1017.7 1020.5 1014.7 1013.6 1010.2 1009.5 1010.8 1013.8 1020.4 1022.0 1021.7 1016.4 MAX. QNH PRESSURE IN HPA 1030.8 1028.1 1030.2 1020.2 1020.4 1017.5 1014.0 1015.2 1017.8 1030.3 1030.7 1033.0 1033.0 DAY 26 8 10 24 15 1 17 29 24 19 23 28 MIN. QNH PRESSURE IN HPA 1013.3 1008.1 1014.9 1008.2 1005.0 1002.3 1005.2 1006.8 1008.9 1012.6 1012.8 1011.8 1002.3 DAY 23 16 25 16 13 27 2 8 5 14 1 25 MEAN QFF PRESSURE IN HPA 1024.3 1019.5 1020.1 1011.5 1007.9 1002.6 1001.4 1002.8 1007.6 1017.2 1021.4 1023.8 1013.3 MAX. QFF PRESSURE IN HPA 1035.6 1031.1 1032.1 1017.8 1016.6 1011.8 1005.9 1008.5 1012.5 1029.2 1031.7 1039.2 1039.2 DAY 26 8 21 3 15 1 9 29 27 19 23 28 MIN. QFF PRESSURE IN HPA 1015.1 1008.9 1012.7 1002.4 1000.1 993.1 996.4 997.9 1001.8 1008.7 1009.5 1014.4 993.1 DAY 1 16 25 29 12 27 28 20 5 1 1 25 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 918.8 915.5 917.7 911.9 911.2 908.0 907.4 908.6 911.3 917.3 918.9 918.8 913.8 MAX. QFE PRESSURE IN HPA 927.4 925.4 926.3 917.6 918.0 914.2 911.4 912.2 915.6 926.3 927.0 929.0 929.0 DAY 26 8 10 24 16 1 17 29 24 19 22 28 MIN. QFE PRESSURE IN HPA 911.5 907.5 910.7 904.4 902.9 901.5 903.6 904.2 908.0 910.0 910.8 912.1 901.5 DAY 23 16 14 15 12 27 2 7 1 14 1 25 MEAN QNH PRESSURE IN HPA 1020.1 1016.6 1018.9 1012.7 1011.8 1008.4 1007.8 1009.1 1012.0 1018.5 1020.3 1020.2 1014.7 MAX. QNH PRESSURE IN HPA 1029.5 1027.3 1028.3 1018.9 1019.3 1015.2 1012.1 1013.0 1016.7 1028.3 1029.1 1031.3 1031.3 DAY 26 8 10 24 16 1 17 29 24 19 22 28 MIN. QNH PRESSURE IN HPA 1012.2 1007.9 1011.3 1004.5 1002.8 1001.3 1003.6 1004.3 1008.4 1010.6 1011.5 1012.9 1001.3 DAY 23 16 14 15 12 27 2 7 1 14 1 25 MEAN QFF PRESSURE IN HPA 1022.5 1017.8 1018.0 1009.3 1006.1 1000.7 999.5 1001.0 1005.7 1014.7 1018.7 1021.4 1011.3 MAX. QFF PRESSURE IN HPA 1033.3 1029.9 1029.4 1015.3 1014.9 1009.6 1003.8 1005.9 1011.2 1027.0 1028.6 1036.6 1036.6 DAY 26 8 17 3 15 1 9 29 24 19 22 28 MIN. QFF PRESSURE IN HPA 1013.4 1007.5 1008.3 999.9 998.3 992.1 994.6 995.7 1001.1 1006.0 1008.1 1014.8 992.1 DAY 23 16 14 15 12 27 28 7 5 1 1 18 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 917.4 913.7 915.6 909.9 909.2 905.6 905.3 906.1 909.1 915.4 917.3 917.1 911.8 MAX. QFE PRESSURE IN HPA 925.9 923.5 923.5 915.5 915.6 912.2 909.0 909.6 913.1 924.0 925.9 927.5 927.5 DAY 26 8 17 24 16 1 9 2 27 19 22 28 MIN. QFE PRESSURE IN HPA 910.8 904.9 908.0 901.5 903.9 899.7 901.0 902.0 905.3 908.4 909.4 911.6 899.7 DAY 23 15 14 15 12 27 4 8 1 1 1 18 MEAN QNH PRESSURE IN HPA 1018.6 1014.6 1016.6 1010.4 1009.7 1005.8 1005.5 1006.4 1009.6 1016.5 1018.5 1018.3 1012.5 MAX. QNH PRESSURE IN HPA 1027.9 1025.3 1025.3 1016.6 1016.7 1013.0 1009.5 1010.1 1014.0 1025.8 1027.9 1029.6 1029.6 DAY 26 8 17 24 16 1 9 2 27 19 22 28 MIN. QNH PRESSURE IN HPA 1011.5 1005.0 1008.4 1001.3 1003.9 999.4 1000.8 1001.9 1005.5 1008.8 1009.9 1012.3 999.4 DAY 23 15 14 15 12 27 4 8 1 1 1 18 MEAN QFF PRESSURE IN HPA 1020.9 1015.7 1015.7 1007.1 1004.0 998.3 997.2 998.3 1003.3 1012.8 1016.9 1019.5 1009.1 MAX. QFF PRESSURE IN HPA 1031.4 1027.9 1027.4 1013.7 1011.7 1007.5 1001.7 1003.0 1008.1 1024.5 1027.4 1034.7 1034.7 DAY 26 8 17 3 15 1 9 29 24 19 14 28 MIN. QFF PRESSURE IN HPA 1012.6 1004.7 1005.7 996.5 999.2 990.5 992.5 994.7 998.0 1004.0 1005.9 1012.7 990.5 DAY 1 19 14 15 11 27 29 6 5 1 1 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.9 914.1 915.7 910.0 908.8 904.8 904.5 905.3 908.5 915.5 917.7 917.7 911.7 MAX. QFE PRESSURE IN HPA 925.8 923.3 923.4 915.4 914.4 911.0 908.4 909.0 913.0 923.6 926.1 927.5 927.5 DAY 26 7 20 24 15 1 17 2 27 19 22 28 MIN. QFE PRESSURE IN HPA 910.8 902.8 907.2 900.7 904.0 899.4 900.0 900.7 904.6 908.1 910.8 911.6 899.4 DAY 17 15 24 15 11 26 4 8 1 1 1 18 MEAN QNH PRESSURE IN HPA 1019.2 1015.0 1016.8 1010.5 1009.3 1004.9 1004.6 1005.4 1008.9 1016.5 1019.0 1019.0 1012.4 MAX. QNH PRESSURE IN HPA 1027.8 1025.1 1025.2 1016.5 1015.4 1011.7 1008.8 1009.5 1013.8 1025.4 1028.1 1029.6 1029.6 DAY 26 7 20 24 15 1 17 2 27 19 22 28 MIN. QNH PRESSURE IN HPA 1011.5 1002.7 1007.5 1000.5 1004.0 999.0 999.7 1000.5 1004.7 1008.5 1011.5 1012.3 999.0 DAY 17 15 24 15 11 26 4 8 1 1 1 18 MEAN QFF PRESSURE IN HPA 1022.0 1016.8 1016.6 1007.8 1003.9 997.5 996.8 997.8 1003.6 1013.8 1018.7 1021.1 1009.7 MAX. QFF PRESSURE IN HPA 1032.4 1027.5 1027.6 1016.4 1011.3 1006.1 1001.0 1002.1 1009.4 1024.7 1028.5 1036.0 1036.0 DAY 26 7 20 3 15 1 19 2 27 19 22 28 MIN. QFF PRESSURE IN HPA 1012.8 1003.4 1006.8 996.9 998.6 990.7 992.0 993.3 998.4 1003.7 1009.3 1013.8 990.7 DAY 1 15 24 15 11 26 29 8 1 1 1 18 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 918.7 915.2 917.3 911.5 910.4 906.1 905.8 906.6 909.7 916.7 918.7 918.7 912.9 MAX. QFE PRESSURE IN HPA 927.6 924.2 925.3 917.2 914.9 911.4 909.0 910.4 914.2 925.0 926.9 928.0 928.0 DAY 26 7 20 3 16 4 17 2 27 15 23 28 MIN. QFE PRESSURE IN HPA 911.0 906.0 909.8 903.2 905.3 900.4 901.2 901.5 906.5 909.5 912.0 913.0 900.4 DAY 17 15 24 15 11 26 2 8 4 1 1 22 MEAN QNH PRESSURE IN HPA 1020.0 1016.2 1018.5 1012.3 1011.0 1006.3 1006.0 1006.9 1010.2 1017.9 1020.0 1020.1 1013.8 MAX. QNH PRESSURE IN HPA 1029.7 1026.0 1027.2 1018.4 1015.9 1012.1 1009.5 1011.0 1015.2 1026.9 1029.0 1030.2 1030.2 DAY 26 7 20 3 16 4 17 2 27 15 23 28 MIN. QNH PRESSURE IN HPA 1011.7 1006.2 1010.4 1003.2 1005.5 1000.1 1001.0 1001.3 1006.8 1010.0 1012.8 1013.8 1000.1 DAY 17 15 24 15 11 26 2 8 4 1 1 22 MEAN QFF PRESSURE IN HPA 1023.0 1017.9 1018.0 1009.0 1005.2 998.6 997.9 998.9 1004.1 1014.6 1019.4 1022.2 1010.7 MAX. QFF PRESSURE IN HPA 1034.7 1029.0 1030.3 1017.2 1011.0 1004.9 1001.6 1003.6 1009.5 1024.9 1029.9 1036.4 1036.4 DAY 26 7 20 3 15 1 19 29 27 19 23 28 MIN. QFF PRESSURE IN HPA 1013.9 1006.3 1008.2 998.7 998.9 991.2 993.2 993.1 999.5 1005.0 1009.5 1014.7 991.2 DAY 1 19 24 15 11 26 2 8 4 1 1 18 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 918.6 915.0 917.3 911.9 910.9 906.9 906.3 907.2 910.1 917.0 918.9 918.8 913.2 MAX. QFE PRESSURE IN HPA 926.8 924.7 925.9 916.6 914.8 911.8 909.0 911.3 914.6 925.8 926.6 927.8 927.8 DAY 26 7 20 3 15 1 8 29 27 15 22 27 MIN. QFE PRESSURE IN HPA 911.0 905.1 910.8 904.8 904.5 900.8 902.8 902.7 907.0 910.4 912.4 912.3 900.8 DAY 17 15 24 15 12 26 2 8 5 1 1 24 MEAN QNH PRESSURE IN HPA 1019.9 1016.1 1018.6 1012.7 1011.6 1007.2 1006.5 1007.5 1010.7 1018.1 1020.2 1020.1 1014.1 MAX. QNH PRESSURE IN HPA 1028.9 1026.6 1027.9 1017.8 1015.8 1012.5 1009.5 1012.0 1015.6 1027.8 1028.6 1030.0 1030.0 DAY 26 7 20 3 15 1 8 29 27 15 22 27 MIN. QNH PRESSURE IN HPA 1011.7 1005.2 1011.5 1004.9 1004.6 1000.6 1002.7 1002.6 1007.3 1011.0 1013.2 1013.1 1000.6 DAY 17 15 24 15 12 26 2 8 5 1 1 24 MEAN QFF PRESSURE IN HPA 1022.3 1017.2 1017.6 1009.1 1005.8 999.3 998.2 999.4 1004.4 1014.3 1018.6 1021.4 1010.6 MAX. QFF PRESSURE IN HPA 1033.0 1029.2 1030.9 1015.7 1011.4 1005.7 1002.1 1004.9 1009.9 1025.1 1028.0 1035.6 1035.6 DAY 26 7 20 3 14 1 19 29 27 18 22 27 MIN. QFF PRESSURE IN HPA 1012.4 1005.2 1008.9 1000.8 999.0 991.6 993.4 994.2 1000.2 1005.5 1010.0 1013.1 991.6 DAY 1 15 24 15 11 26 28 8 4 1 1 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.1 4.4 10.6 19.1 24.3 29.2 32.1 29.6 25.1 18.4 11.0 3.9 17.6 MINIMUN AIR TEMPERATURE (C) -0.9 -1.3 5.0 10.2 14.2 19.4 22.4 18.9 14.8 9.9 2.8 -1.5 9.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 10 25 8 0 0 0 0 43 DAYS WITH MINIMUM TEMP. <=-4 4 6 0 0 0 0 0 0 0 0 1 11 22 DAYS WITH FREEZING MIN.<= 0 24 22 2 0 0 0 0 0 0 0 8 19 75 TEMPERATURE RECORDS LOWEST(C) -6.0 -9.0 -0.5 3.4 8.0 15.0 19.6 13.5 7.5 5.0 -4.0 -8.0 -9.0 DAY 29 14 11 14 7 2 30 26 28 31 26 20 MAXIMUM AIR TEMPERATURE (C) 10.1 10.5 16.7 26.9 30.9 37.1 40.1 39.1 34.6 26.8 19.5 10.6 25.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 8 23 30 31 31 25 2 0 0 150 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 15.0 18.0 24.0 34.5 36.0 41.0 43.5 44.5 40.4 30.4 27.2 16.0 44.5 DAY 31 18 29 22 17 28 7 6 9 27 2 1 DIF. BETWEEN (MAX.-MIN.) (C) 11.0 11.8 11.7 16.7 16.7 17.7 17.7 20.2 19.8 16.9 16.7 12.1 15.8 MEAN DAILY TEMP. (MDT) (C) 4.6 4.6 10.9 18.6 22.6 28.3 31.2 29.0 24.7 18.3 11.2 4.6 17.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 12.1 64.8 217.8 317.1 247.1 123.4 0.0 0.0 0.0 982.4 HEATING DEG. DAYS(BASE 18 0C) 415.0 375.5 220.3 33.2 2.4 0.0 0.0 0.0 1.1 14.0 204.5 416.7 1682.7 DEWPOINT (MEAN C) -1.7 -2.9 2.4 1.6 1.9 3.7 4.4 2.9 2.1 2.7 -0.9 -1.8 1.2 MIXING RATIO (G/KG) 3.79 3.51 5.24 5.00 5.08 5.75 6.08 5.47 5.13 5.32 3.97 3.83 4.85 VAPOUR PRESSURE (HPA) 5.55 5.15 7.63 7.28 7.37 8.31 8.76 7.91 7.47 7.78 5.83 5.61 7.05 SATURATION DEF. (HPA) 2.93 3.70 5.76 16.25 24.80 34.10 41.03 36.52 27.04 14.59 8.34 2.92 18.17 RELATIVE HUMIDITY (MEAN %) 69 63 61 37 27 22 20 21 26 39 47 70 42 RELATIVE HUMIDITY (MAX. %) 86 85 83 64 47 39 36 40 44 60 66 85 61 RELATIVE HUMIDITY (MIN. %) 46 39 37 17 15 12 11 10 13 21 29 48 25 RELATIVE HUMIDITY (MEAN% 03UTC) 83 82 77 61 47 37 32 37 41 57 65 82 58 RELATIVE HUMIDITY (MEAN% 09UTC) 53 48 45 21 20 15 14 13 18 26 33 54 30 RELATIVE HUMIDITY (MEAN% 15UTC) 61 50 51 23 21 14 13 11 17 30 37 65 33 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 19.4 30.1 40.0 16.6 3.8 0.0 0.0 0.0 0.0 3.5 0.8 15.3 129.5 DAYS WITH PRECIPITATION >=10 0 1 1 1 0 0 0 0 0 0 0 0 3 DAYS WITH PRECIPITATION >= 5 1 3 2 1 0 0 0 0 0 0 0 1 8 DAYS WITH PRECIPITATION >= 1 5 5 5 2 1 0 0 0 0 1 0 4 23 DAYS WITH PRECIPITATION 5 7 10 2 2 0 0 0 0 4 1 7 38 GREATEST DAILY PRECIPITATION 7.0 11.0 18.0 13.6 3.0 0.0 0.0 0.0 0.0 2.2 0.8 5.0 18.0 DAY 3 22 25 4 17 ** ** ** ** 16 16 25 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 1 0 0 1 DAYS WITH SNOW OR SLEET 2 3 0 0 0 0 0 0 0 0 0 3 8 DAYS WITH DUST 3 1 0 0 6 2 5 2 0 0 0 0 19 WIND DIRECTION (PREVAILING) 270 270 270 315 315 90 90 90 90 90 270 270 90 PREVAILING WIND SPEED(KNOTS) 9.1 7.2 9.1 10.4 10.8 11.0 12.2 10.9 9.5 9.0 7.3 7.8 10.2 PREVAILING WIND PERCENT 6.9 20.1 15.7 20.0 34.1 26.3 47.2 34.3 23.3 10.5 9.2 17.3 15.0 CALMS PERCENT OF WIND 79.8 63.8 55.6 40.8 24.0 35.4 32.7 54.0 48.8 64.5 67.1 69.0 53.6 NO. OF WIND OBSERVATION 248 224 248 240 179 240 248 248 240 248 240 248 2851 VECTOR WIND DIRECTION (MEAN) 288 287 298 297 306 65 91 92 72 349 271 283 2 VECTOR WIND MAGNITUDE(KNOTS) 0.9 1.9 1.6 2.9 4.9 2.1 6.1 4.1 1.3 0.2 0.6 1.8 0.6 WIND STEADINESES (MEAN %) 60.0 73.1 44.4 55.8 67.1 34.4 81.3 91.1 29.5 7.4 25.0 78.3 14.3 WIND SPEED (MEAN KNOTS) 1.5 2.6 3.6 5.2 7.3 6.1 7.5 4.5 4.4 2.7 2.4 2.3 4.2 FASTEST WIND DIRECTION 230 260 280 330 300 70 90 100 100 100 210 300 260 FASTEST WIND SPEED (KNOTS) 23 29 19 25 29 19 23 21 21 19 19 19 29 DAY 5 4 7 13 17 15 1 21 11 1 14 16 DAYS WITH SKY CLEAR (0-2)/8 9 9 7 12 20 29 31 31 30 18 19 15 230 DAYS WITH P.CLOUDY (3-6)/8 16 9 15 16 9 1 0 0 0 12 11 6 95 DAYS WITH CLOUDY (7-8)/8 6 10 9 2 2 0 0 0 0 1 0 10 40 DAYS WITH VISIBILITY =< 2 KM 5 1 0 0 3 0 1 0 0 0 0 2 12 DURATION OF SUNSHINE HOURS 150.4 156.1 171.6 258.1 282.3 352.1 359.4 336.1 314.6 246.9 210.6 140.7 2978.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.9 918.0 914.2 913.3 909.6 908.2 905.4 907.4 913.0 917.5 919.2 916.9 913.4 MAX. QFE PRESSURE IN HPA 927.0 930.5 923.0 920.8 918.4 916.1 911.4 913.5 921.7 923.3 926.0 927.1 930.5 DAY-HOUR 12- 6 15- 6 12- 6 19- 6 25- 3 23- 6 12- 6 23- 6 27- 6 13- 6 24- 6 17- 6 MIN. QFE PRESSURE IN HPA 906.4 909.0 904.0 904.8 901.0 897.6 898.8 900.8 904.0 911.8 911.0 908.6 897.6 DAY-HOUR 24-15 20-12 6-15 4-12 22-15 11-15 13-18 11-15 8-12 4-12 4-12 31-21 MEAN QNH PRESSURE IN HPA 1019.2 1019.3 1015.2 1014.2 1010.2 1008.6 1005.6 1007.8 1013.9 1018.7 1020.6 1018.0 1014.3 MAX. QNH PRESSURE IN HPA 1029.1 1032.9 1024.7 1022.3 1019.7 1017.2 1012.1 1014.4 1023.3 1025.1 1028.0 1029.2 1032.9 DAY-HOUR 12- 6 15- 6 12- 6 19- 6 25- 3 23- 6 12- 6 23- 6 27- 6 13- 6 24- 6 17- 6 MIN. QNH PRESSURE IN HPA 1006.7 1009.5 1004.0 1004.9 1000.8 997.1 998.4 1000.6 1004.0 1012.5 1011.7 1009.1 997.1 DAY-HOUR 24-15 20-12 6-15 4-12 22-15 11-15 13-18 11-15 8-12 4-12 4-12 31-21 MEAN QFF PRESSURE IN HPA 1021.2 1021.3 1014.6 1010.6 ****** 1001.5 997.5 1000.5 1008.2 1015.4 1020.1 1020.1 ****** MAX. QFF PRESSURE IN HPA 1032.7 1037.4 1026.8 1020.6 ****** 1009.6 1005.1 1007.6 1019.6 1021.8 1029.9 1033.0 ****** DAY-HOUR 12- 6 15- 6 12- 6 14- 3 **-** 23- 6 12- 6 27- 6 27- 6 13- 6 27- 6 17- 6 MIN. QFF PRESSURE IN HPA 1007.1 1008.2 1003.7 1001.5 ****** 989.8 990.4 993.0 996.3 1008.3 1008.1 1009.1 ****** DAY-HOUR 24-12 21- 0 6-15 4-12 **-** 11-15 13-21 6-15 8-12 4-12 5-12 1-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 918.1 917.8 914.0 913.4 ****** 908.4 905.4 907.4 913.1 917.4 919.4 916.9 ****** MAX. QFE PRESSURE IN HPA 926.0 928.0 920.0 918.6 ****** 914.0 909.8 911.0 919.3 920.8 924.0 924.6 ****** DAY 13 15 12 14 ** 23 12 23 27 17 27 17 MIN. QFE PRESSURE IN HPA 908.0 909.0 904.2 905.8 ****** 900.4 898.8 903.1 906.0 914.4 912.5 909.9 ****** DAY 26 21 7 10 ** 12 14 12 8 15 5 2 MEAN QNH PRESSURE IN HPA 1019.4 1019.1 1015.0 1014.3 ****** 1008.8 1005.6 1007.7 1013.9 1018.7 1020.8 1018.1 ****** MAX. QNH PRESSURE IN HPA 1028.0 1030.2 1021.5 1019.9 ****** 1014.9 1010.4 1011.7 1020.7 1022.3 1025.8 1026.5 ****** DAY 13 15 12 14 ** 23 12 23 27 17 27 17 MIN. QNH PRESSURE IN HPA 1008.4 1009.5 1004.3 1006.0 ****** 1000.1 998.4 1003.1 1006.2 1015.4 1013.3 1010.5 ****** DAY 26 21 7 10 ** 12 14 12 8 15 5 2 MEAN QFF PRESSURE IN HPA 1021.1 1020.8 1014.2 1010.6 ****** 1001.7 997.3 1000.2 1008.0 1015.1 1019.8 1019.7 ****** MAX. QFF PRESSURE IN HPA 1030.4 1034.2 1022.8 1018.5 ****** 1007.6 1003.2 1004.9 1017.2 1019.8 1026.8 1029.6 ****** DAY 13 15 12 14 ** 23 12 23 28 17 27 18 MIN. QFF PRESSURE IN HPA 1009.2 1008.2 1004.2 1002.7 ****** 992.3 990.6 995.8 998.6 1011.4 1010.0 1010.7 ****** DAY 26 21 7 10 ** 12 14 6 8 5 5 2 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 918.2 918.4 914.6 914.3 911.0 909.8 907.2 908.8 914.2 918.2 919.9 917.3 914.3 MAX. QFE PRESSURE IN HPA 926.0 928.9 920.3 919.7 918.4 915.0 911.1 912.5 920.4 922.0 924.5 925.4 928.9 DAY 13 15 12 14 25 23 12 23 27 13 24 17 MIN. QFE PRESSURE IN HPA 908.4 909.5 905.2 905.8 906.1 902.3 901.6 904.2 906.8 914.6 912.9 912.2 901.6 DAY 26 21 7 10 23 12 14 12 8 15 5 1 MEAN QNH PRESSURE IN HPA 1019.5 1019.7 1015.6 1015.2 1011.7 1010.3 1007.5 1009.3 1015.1 1019.5 1021.4 1018.5 1015.3 MAX. QNH PRESSURE IN HPA 1028.0 1031.2 1021.8 1021.1 1019.7 1016.0 1011.8 1013.3 1021.9 1023.6 1026.4 1027.3 1031.2 DAY 13 15 12 14 25 23 12 23 27 13 24 17 MIN. QNH PRESSURE IN HPA 1008.8 1010.0 1005.4 1006.0 1006.3 1002.2 1001.4 1004.3 1007.1 1015.6 1013.7 1013.0 1001.4 DAY 26 21 7 10 23 12 14 12 8 15 5 1 MEAN QFF PRESSURE IN HPA 1021.9 1022.0 1015.4 1012.1 1007.0 1003.5 999.7 1002.4 1010.0 1016.8 1021.4 1021.0 1012.8 MAX. QFF PRESSURE IN HPA 1031.2 1036.1 1023.9 1020.6 1018.4 1008.5 1004.6 1007.3 1018.5 1020.8 1028.4 1031.2 1036.1 DAY 13 15 12 14 25 23 12 23 27 17 27 17 MIN. QFF PRESSURE IN HPA 1010.3 1009.4 1005.7 1002.9 1000.6 994.3 993.6 997.2 1000.6 1012.8 1011.8 1013.6 993.6 DAY 26 21 7 10 22 12 14 6 8 4 5 1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 919.3 919.5 915.8 915.2 911.6 910.3 907.8 909.7 915.2 919.5 921.1 918.3 915.3 MAX. QFE PRESSURE IN HPA 927.0 930.5 923.0 920.8 918.4 916.1 911.4 913.5 921.7 923.3 926.0 927.1 930.5 DAY 12 15 12 19 25 23 12 23 27 13 24 17 MIN. QFE PRESSURE IN HPA 910.8 911.5 906.7 907.6 906.7 902.8 902.8 905.0 907.0 915.5 914.5 912.7 902.8 DAY 25 21 7 10 28 12 14 6 8 4 4 1 MEAN QNH PRESSURE IN HPA 1020.7 1020.9 1016.8 1016.2 1012.4 1010.9 1008.2 1010.2 1016.2 1020.9 1022.7 1019.6 1016.3 MAX. QNH PRESSURE IN HPA 1029.1 1032.9 1024.7 1022.3 1019.7 1017.2 1012.1 1014.4 1023.3 1025.1 1028.0 1029.2 1032.9 DAY 12 15 12 19 25 23 12 23 27 13 24 17 MIN. QNH PRESSURE IN HPA 1011.5 1012.2 1007.0 1008.0 1007.0 1002.7 1002.7 1005.1 1007.3 1016.6 1015.5 1013.5 1002.7 DAY 25 21 7 10 28 12 14 6 8 4 4 1 MEAN QFF PRESSURE IN HPA 1023.2 1023.2 1016.4 1012.6 ****** 1003.7 1000.0 1002.9 1010.5 1017.6 1022.4 1022.1 ****** MAX. QFF PRESSURE IN HPA 1032.7 1037.4 1026.8 1020.5 ****** 1009.6 1005.1 1007.6 1019.6 1021.8 1029.9 1033.0 ****** DAY 12 15 12 14 ** 23 12 27 27 13 27 17 MIN. QFF PRESSURE IN HPA 1012.9 1012.3 1007.3 1003.9 ****** 994.4 994.7 996.5 1000.7 1012.6 1013.2 1013.6 ****** DAY 25 21 7 10 ** 12 14 6 8 4 5 1 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 918.2 918.6 914.7 913.7 910.0 908.8 906.4 908.3 913.6 918.0 919.5 916.9 913.9 MAX. QFE PRESSURE IN HPA 925.8 930.1 922.5 919.3 917.5 914.9 909.9 912.1 919.8 921.7 924.3 925.2 930.1 DAY 12 15 12 14 25 23 11 23 27 13 27 17 MIN. QFE PRESSURE IN HPA 909.0 911.3 905.1 906.6 904.4 901.2 901.8 903.9 906.0 913.8 912.4 910.4 901.2 DAY 25 20 6 10 22 11 14 12 8 4 4 1 MEAN QNH PRESSURE IN HPA 1019.5 1020.0 1015.7 1014.6 1010.6 1009.3 1006.6 1008.7 1014.5 1019.3 1020.9 1018.1 1014.8 MAX. QNH PRESSURE IN HPA 1027.8 1032.5 1024.2 1020.7 1018.7 1015.9 1010.5 1012.9 1021.2 1023.3 1026.1 1027.1 1032.5 DAY 12 15 12 14 25 23 11 23 27 13 27 17 MIN. QNH PRESSURE IN HPA 1009.5 1012.0 1005.2 1006.9 1004.5 1001.0 1001.6 1003.9 1006.2 1014.7 1013.2 1011.0 1001.0 DAY 25 20 6 10 22 11 14 12 8 4 4 1 MEAN QFF PRESSURE IN HPA 1021.2 1021.7 1014.9 1010.8 ****** 1002.1 998.4 1001.3 1008.5 1015.5 1019.9 1019.8 ****** MAX. QFF PRESSURE IN HPA 1030.3 1035.8 1025.8 1018.8 ****** 1008.6 1003.0 1006.1 1017.6 1019.4 1026.7 1030.1 ****** DAY 12 15 12 14 ** 23 12 23 30 13 27 17 MIN. QFF PRESSURE IN HPA 1010.4 1011.6 1005.0 1003.0 ****** 992.3 993.5 996.0 998.8 1010.4 1010.5 1010.1 ****** DAY 25 20 6 10 ** 12 14 6 8 4 4 1 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 916.5 916.9 913.2 911.8 908.1 906.8 904.1 906.1 911.4 916.1 917.7 915.6 912.0 MAX. QFE PRESSURE IN HPA 924.0 928.5 920.4 917.2 915.0 913.0 908.0 910.0 917.9 920.1 922.7 923.6 928.5 DAY 12 15 12 14 25 23 11 23 27 13 24 17 MIN. QFE PRESSURE IN HPA 906.6 909.0 904.2 904.8 902.0 898.6 900.0 901.4 904.0 911.8 911.0 908.9 898.6 DAY 24 20 6 4 22 11 7 11 8 4 4 1 MEAN QNH PRESSURE IN HPA 1017.6 1018.1 1014.1 1012.5 1008.5 1007.1 1004.2 1006.3 1012.1 1017.2 1019.0 1016.7 1012.8 MAX. QNH PRESSURE IN HPA 1025.8 1030.7 1021.9 1018.4 1016.0 1013.8 1008.4 1010.6 1019.2 1021.6 1024.4 1025.4 1030.7 DAY 12 15 12 14 25 23 11 23 27 13 24 17 MIN. QNH PRESSURE IN HPA 1006.9 1009.5 1004.3 1004.9 1001.9 998.2 999.7 1001.2 1004.0 1012.5 1011.7 1009.4 998.2 DAY 24 20 6 4 22 11 7 11 8 4 4 1 MEAN QFF PRESSURE IN HPA 1019.3 1019.7 1013.3 1008.9 ****** 1000.0 996.0 998.9 1006.2 1013.6 1018.0 1018.3 ****** MAX. QFF PRESSURE IN HPA 1028.0 1034.3 1023.1 1016.8 ****** 1006.8 1000.8 1003.9 1015.6 1018.5 1025.2 1028.2 ****** DAY 12 15 12 14 ** 23 11 23 27 13 27 17 MIN. QFF PRESSURE IN HPA 1007.1 1009.1 1003.7 1001.5 ****** 991.3 991.4 993.6 996.3 1008.3 1008.1 1009.1 ****** DAY 24 20 6 4 ** 11 7 6 8 4 5 1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.1 917.2 913.3 911.7 907.9 906.0 903.3 905.3 911.1 916.2 918.0 916.2 911.9 MAX. QFE PRESSURE IN HPA 924.0 927.7 920.4 916.9 914.2 912.0 907.3 909.0 917.5 920.4 922.5 925.2 927.7 DAY 11 15 12 14 24 23 11 27 27 20 27 17 MIN. QFE PRESSURE IN HPA 906.4 909.0 904.0 904.8 901.0 897.6 899.2 900.8 904.0 912.8 911.7 909.6 897.6 DAY 24 20 6 4 22 11 13 11 8 4 5 12 MEAN QNH PRESSURE IN HPA 1018.3 1018.4 1014.1 1012.4 1008.3 1006.3 1003.3 1005.4 1011.7 1017.3 1019.3 1017.3 1012.7 MAX. QNH PRESSURE IN HPA 1025.8 1029.8 1021.9 1018.1 1015.2 1012.8 1007.6 1009.5 1018.7 1021.9 1024.2 1027.1 1029.8 DAY 11 15 12 14 24 23 11 27 27 20 27 17 MIN. QNH PRESSURE IN HPA 1006.7 1009.5 1004.0 1004.9 1000.8 997.1 998.8 1000.6 1004.0 1013.6 1012.4 1010.1 997.1 DAY 24 20 6 4 22 11 13 11 8 4 5 12 MEAN QFF PRESSURE IN HPA 1020.6 1020.7 1013.9 1009.3 1003.6 999.4 995.5 998.6 1006.6 1014.6 1019.3 1019.8 1010.2 MAX. QFF PRESSURE IN HPA 1028.9 1034.2 1023.6 1017.0 1012.7 1005.7 1000.1 1003.9 1015.8 1019.5 1026.3 1031.0 1034.2 DAY 11 15 12 14 24 23 11 27 27 21 27 17 MIN. QFF PRESSURE IN HPA 1007.9 1010.1 1003.7 1002.3 995.6 989.8 991.0 993.0 997.4 1010.3 1010.5 1010.4 989.8 DAY 24 20 6 4 22 11 13 6 8 4 5 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 917.9 918.0 914.2 913.3 ****** 907.5 904.6 906.7 912.7 917.2 919.1 916.9 ****** MAX. QFE PRESSURE IN HPA 925.8 928.0 920.4 918.4 ****** 912.8 909.1 910.6 918.8 921.0 923.4 925.2 ****** DAY 12 15 12 14 ** 22 11 27 27 20 23 17 MIN. QFE PRESSURE IN HPA 908.6 909.0 904.4 906.8 ****** 900.2 898.8 902.0 905.5 914.3 913.0 910.0 ****** DAY 25 20 6 9 ** 11 13 6 7 3 4 4 MEAN QNH PRESSURE IN HPA 1019.2 1019.3 1015.1 1014.2 ****** 1007.8 1004.7 1007.0 1013.6 1018.5 1020.4 1018.1 ****** MAX. QNH PRESSURE IN HPA 1027.8 1030.2 1021.9 1019.7 ****** 1013.6 1009.6 1011.2 1020.2 1022.6 1025.2 1027.1 ****** DAY 12 15 12 14 ** 22 11 27 27 20 23 17 MIN. QNH PRESSURE IN HPA 1009.1 1009.5 1004.5 1007.1 ****** 999.9 998.4 1001.9 1005.7 1015.3 1013.8 1010.6 ****** DAY 25 20 6 9 ** 11 13 6 7 3 4 4 MEAN QFF PRESSURE IN HPA 1021.6 1021.5 1014.6 1010.5 ****** 1000.6 996.5 999.7 1007.8 1015.1 1020.2 1020.6 ****** MAX. QFF PRESSURE IN HPA 1031.1 1034.2 1023.1 1018.0 ****** 1005.7 1002.1 1004.9 1016.7 1019.4 1026.8 1031.0 ****** DAY 12 15 12 14 ** 22 11 27 27 16 27 17 MIN. QFF PRESSURE IN HPA 1010.7 1009.5 1004.7 1003.3 ****** 991.9 990.7 993.2 999.0 1011.2 1011.3 1010.6 ****** DAY 25 20 6 9 ** 11 13 6 7 4 5 4 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 917.9 917.9 914.2 913.4 ****** 907.9 904.9 907.3 913.1 917.4 919.2 917.0 ****** MAX. QFE PRESSURE IN HPA 926.0 927.6 920.0 918.4 ****** 913.0 909.8 911.0 919.2 920.8 923.8 925.2 ****** DAY 12 15 11 14 ** 22 11 22 26 16 24 17 MIN. QFE PRESSURE IN HPA 908.6 909.0 904.4 906.2 ****** 900.4 898.8 903.1 906.0 914.2 913.0 908.6 ****** DAY 25 20 6 9 ** 11 13 11 7 3 4 31 MEAN QNH PRESSURE IN HPA 1019.2 1019.2 1015.1 1014.3 ****** 1008.3 1005.0 1007.6 1013.9 1018.6 1020.6 1018.2 ****** MAX. QNH PRESSURE IN HPA 1028.0 1029.7 1021.5 1019.7 ****** 1013.8 1010.4 1011.7 1020.6 1022.3 1025.6 1027.1 ****** DAY 12 15 11 14 ** 22 11 22 26 16 24 17 MIN. QNH PRESSURE IN HPA 1009.1 1009.5 1004.5 1006.4 ****** 1000.1 998.4 1003.1 1006.2 1015.2 1013.8 1009.1 ****** DAY 25 20 6 9 ** 11 13 11 7 3 4 31 MEAN QFF PRESSURE IN HPA 1020.9 1020.8 1014.2 1010.4 ****** 1001.0 996.7 1000.2 1008.0 1014.8 1019.7 1019.9 ****** MAX. QFF PRESSURE IN HPA 1030.3 1033.3 1023.0 1017.9 ****** 1006.3 1003.1 1005.3 1016.3 1019.9 1026.4 1030.6 ****** DAY 12 15 11 14 ** 23 11 27 29 16 24 17 MIN. QFF PRESSURE IN HPA 1010.0 1008.3 1004.6 1002.2 ****** 991.7 990.4 994.9 999.0 1011.1 1010.4 1011.8 ****** DAY 24 20 6 9 ** 11 13 6 7 3 5 1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.8 4.5 6.9 16.4 19.3 27.9 32.4 28.5 23.0 17.5 10.9 4.9 16.1 MINIMUN AIR TEMPERATURE (C) -4.1 -1.8 0.9 9.3 13.0 19.1 22.1 19.6 11.9 8.2 3.4 -0.6 8.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 7 21 9 0 0 0 0 37 DAYS WITH MINIMUM TEMP. <=-4 15 8 6 0 0 0 0 0 0 0 4 4 37 DAYS WITH FREEZING MIN.<= 0 28 24 12 0 0 0 0 0 0 0 6 17 87 TEMPERATURE RECORDS LOWEST(C) -12.0 -8.6 -11.0 4.0 5.4 15.0 16.5 15.0 8.0 3.0 -7.0 -10.5 -12.0 DAY 29 17 11 1 5 5 27 21 27 30 28 29 MAXIMUM AIR TEMPERATURE (C) 7.2 12.0 13.6 23.7 26.0 35.7 40.6 36.4 32.9 27.4 20.0 11.2 23.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 3 9 30 31 30 28 6 0 0 137 DAYS WITH MAXIMUM TEMP. <= 0 1 0 0 0 0 0 0 0 0 0 0 1 2 TEMPERATURE RECORDS HIGHEST(C) 13.0 20.0 23.0 31.0 34.4 41.2 44.0 41.0 38.0 32.0 26.0 17.0 44.0 DAY 19 21 29 22 30 30 5 1 25 4 2 1 DIF. BETWEEN (MAX.-MIN.) (C) 11.3 13.8 12.7 14.4 13.0 16.6 18.5 16.8 21.0 19.2 16.6 11.8 15.5 MEAN DAILY TEMP. (MDT) (C) 1.6 5.1 7.3 16.5 19.5 27.4 31.4 28.0 22.4 17.8 11.7 5.3 16.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 4.6 32.9 192.7 321.8 217.0 47.8 0.8 0.0 0.0 817.8 HEATING DEG. DAYS(BASE 18 0C) 509.7 373.5 332.6 65.4 38.9 0.0 0.0 0.0 0.0 32.0 188.3 393.9 1934.5 DEWPOINT (MEAN C) -4.8 -5.1 -1.6 2.8 6.8 6.2 5.4 5.7 0.3 -1.3 -1.3 -1.9 0.9 MIXING RATIO (G/KG) 3.00 2.99 4.01 5.39 7.05 6.76 6.57 6.53 4.41 3.90 4.07 3.78 4.87 VAPOUR PRESSURE (HPA) 4.40 4.37 5.85 7.83 10.23 9.76 9.46 9.46 6.44 5.70 5.97 5.53 7.08 SATURATION DEF. (HPA) 2.41 4.59 4.82 11.98 13.71 29.72 41.73 31.63 23.88 15.93 8.21 3.55 16.01 RELATIVE HUMIDITY (MEAN %) 69 54 59 46 51 29 22 26 26 31 47 65 44 RELATIVE HUMIDITY (MAX. %) 86 77 84 69 76 48 42 43 44 50 68 83 64 RELATIVE HUMIDITY (MIN. %) 46 28 36 26 30 15 10 15 12 16 25 44 25 RELATIVE HUMIDITY (MEAN% 03UTC) 80 73 79 66 70 46 40 42 44 49 65 79 61 RELATIVE HUMIDITY (MEAN% 09UTC) 56 36 45 31 37 19 16 19 16 19 31 50 31 RELATIVE HUMIDITY (MEAN% 15UTC) 64 45 51 36 37 19 10 16 15 21 37 57 34 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 11.4 21.2 61.6 30.2 45.8 4.4 0.0 0.0 0.0 0.0 2.0 8.5 185.1 DAYS WITH PRECIPITATION >=10 0 1 1 1 1 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 1 1 5 2 3 0 0 0 0 0 0 1 13 DAYS WITH PRECIPITATION >= 1 4 2 7 4 8 1 0 0 0 0 1 2 29 DAYS WITH PRECIPITATION 8 4 9 7 12 2 0 0 0 0 1 5 48 GREATEST DAILY PRECIPITATION 6.0 18.0 26.0 15.2 15.3 4.0 0.0 0.0 0.0 0.0 2.0 5.0 26.0 DAY 3 25 9 27 6 4 ** ** ** ** 8 30 DAY WITH THUNDER STORM 0 0 0 1 5 1 0 0 0 0 0 0 7 DAYS WITH SNOW OR SLEET 5 0 2 0 0 0 0 0 0 0 0 1 8 DAYS WITH DUST 0 4 2 3 2 0 2 2 0 0 2 2 19 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 90 90 90 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 7.8 11.3 11.2 9.9 9.8 10.5 10.3 10.8 8.3 6.5 6.7 6.5 9.3 PREVAILING WIND PERCENT 27.0 27.6 30.6 27.9 15.3 23.3 31.5 37.9 17.9 14.5 14.2 10.5 17.3 CALMS PERCENT OF WIND 56.0 39.7 44.4 30.8 44.0 40.0 40.7 44.0 54.2 59.1 61.3 71.8 48.9 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 242 240 248 2922 VECTOR WIND DIRECTION (MEAN) 283 284 283 293 301 295 84 85 70 300 281 294 302 VECTOR WIND MAGNITUDE(KNOTS) 2.7 5.5 4.3 4.8 2.1 1.9 3.6 4.5 0.6 0.5 1.1 0.9 1.3 WIND STEADINESES (MEAN %) 81.8 82.1 72.9 65.8 41.2 31.1 62.1 81.8 16.7 17.2 42.3 42.9 27.1 WIND SPEED (MEAN KNOTS) 3.3 6.7 5.9 7.3 5.1 6.1 5.8 5.5 3.6 2.9 2.6 2.1 4.8 FASTEST WIND DIRECTION 300 300 270 280 270 270 110 100 320 310 300 300 300 FASTEST WIND SPEED (KNOTS) 19 29 29 29 29 27 23 23 19 19 29 25 29 DAY 23 11 6 21 19 1 18 18 18 24 26 28 DAYS WITH SKY CLEAR (0-2)/8 13 11 14 10 11 23 30 28 29 30 16 10 225 DAYS WITH P.CLOUDY (3-6)/8 12 13 12 18 15 6 1 3 1 1 11 12 105 DAYS WITH CLOUDY (7-8)/8 6 5 5 2 5 1 0 0 0 0 3 9 36 DAYS WITH VISIBILITY =< 2 KM 0 0 2 0 1 0 0 0 0 0 1 1 5 DURATION OF SUNSHINE HOURS 157.4 184.2 220.6 215.5 234.8 323.1 362.3 327.6 320.1 297.7 192.2 137.3 2972.8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.9 914.0 915.4 911.9 913.4 908.1 906.2 910.1 913.8 916.5 918.4 917.7 913.6 MAX. QFE PRESSURE IN HPA 929.4 923.7 928.5 917.7 921.0 914.9 912.2 920.0 920.0 923.1 928.2 924.1 929.4 DAY-HOUR 10- 6 16- 6 12- 6 20- 6 2- 9 11- 3 14- 6 31- 6 1- 6 30- 6 4- 6 29- 6 MIN. QFE PRESSURE IN HPA 907.1 902.8 901.4 903.0 907.3 900.1 900.0 900.9 906.5 909.9 906.6 912.1 900.0 DAY-HOUR 2-21 24-15 30-12 18- 0 20-15 27-15 18-15 1-15 17-15 5-15 25-21 27-12 MEAN QNH PRESSURE IN HPA 1019.1 1014.9 1016.5 1012.6 1014.3 1008.5 1006.5 1010.7 1014.7 1017.6 1019.7 1018.9 1014.5 MAX. QNH PRESSURE IN HPA 1031.7 1025.5 1030.7 1019.0 1022.6 1015.9 1013.0 1021.5 1021.5 1024.8 1030.4 1025.9 1031.7 DAY-HOUR 10- 6 16- 6 12- 6 20- 6 2- 9 11- 3 14- 6 31- 6 1- 6 30- 6 4- 6 29- 6 MIN. QNH PRESSURE IN HPA 1007.4 1002.7 1001.2 1003.0 1007.6 999.8 999.7 1000.7 1006.8 1010.5 1006.9 1012.9 999.7 DAY-HOUR 2-21 24-15 30-12 18- 0 20-15 27-15 18-15 1-15 17-15 5-15 25-21 27-12 MEAN QFF PRESSURE IN HPA 1022.5 1016.7 1017.4 1009.9 1010.5 1001.8 998.2 1003.7 1009.8 1014.6 1019.2 1020.6 1012.1 MAX. QFF PRESSURE IN HPA 1037.1 1029.2 1035.6 1018.8 1022.5 1009.7 1005.3 1016.3 1017.9 1023.5 1030.1 1031.7 1037.1 DAY-HOUR 10- 6 16- 6 12- 6 8- 3 2-18 11- 3 14- 3 31- 6 30- 6 30- 6 4- 6 29- 6 MIN. QFF PRESSURE IN HPA 1009.0 1002.5 998.7 998.9 1002.7 992.1 991.3 992.6 1002.2 1006.5 1004.4 1014.3 991.3 DAY-HOUR 2-21 24-12 30-12 18- 0 20-15 27-15 18-15 1-15 17-15 5-12 25-21 27-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 917.7 914.0 915.3 911.8 913.5 908.6 906.2 910.1 913.8 916.6 918.2 917.6 913.6 MAX. QFE PRESSURE IN HPA 928.6 922.5 925.7 916.5 918.7 914.0 910.4 917.4 918.5 921.9 925.6 923.2 928.6 DAY 5 16 12 8 3 7 14 31 2 30 4 29 MIN. QFE PRESSURE IN HPA 908.3 906.9 904.3 903.0 909.2 901.8 902.4 902.5 909.0 912.4 906.9 914.2 901.8 DAY 3 25 31 18 10 27 20 1 18 6 26 28 MEAN QNH PRESSURE IN HPA 1018.9 1014.9 1016.4 1012.5 1014.4 1009.0 1006.4 1010.6 1014.8 1017.7 1019.5 1018.8 1014.5 MAX. QNH PRESSURE IN HPA 1030.8 1024.2 1027.7 1017.7 1020.1 1014.9 1011.0 1018.6 1019.8 1023.5 1027.6 1024.9 1030.8 DAY 5 16 12 8 3 7 14 31 2 30 4 29 MIN. QNH PRESSURE IN HPA 1008.7 1007.2 1004.4 1003.0 1009.7 1001.6 1002.3 1002.4 1009.5 1013.2 1007.2 1015.2 1001.6 DAY 3 25 31 18 10 27 20 1 18 6 26 28 MEAN QFF PRESSURE IN HPA 1021.9 1016.3 1017.1 1009.7 1010.4 1002.2 998.2 1003.5 1009.6 1014.4 1018.4 1020.1 1011.8 MAX. QFF PRESSURE IN HPA 1035.4 1026.7 1031.9 1017.4 1019.7 1008.5 1003.8 1013.2 1015.6 1021.3 1026.6 1029.5 1035.4 DAY 5 16 12 8 3 7 14 31 2 30 4 29 MIN. QFF PRESSURE IN HPA 1010.2 1006.6 1002.6 998.9 1005.0 993.7 993.6 994.0 1003.7 1008.2 1005.0 1016.5 993.6 DAY 3 25 31 18 19 27 19 1 18 6 26 28 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 917.8 914.5 915.9 912.7 914.3 909.5 907.8 911.6 915.0 917.4 918.9 917.9 914.4 MAX. QFE PRESSURE IN HPA 928.1 923.1 926.9 917.2 919.4 914.9 911.6 918.8 919.0 922.4 926.2 923.2 928.1 DAY 10 16 12 20 2 11 14 31 1 30 4 29 MIN. QFE PRESSURE IN HPA 908.9 908.0 903.5 904.6 909.7 902.8 904.2 904.8 910.0 913.8 908.4 914.7 902.8 DAY 3 21 31 18 10 27 10 1 18 6 25 27 MEAN QNH PRESSURE IN HPA 1019.1 1015.4 1017.0 1013.5 1015.3 1010.1 1008.2 1012.3 1016.1 1018.7 1020.2 1019.2 1015.4 MAX. QNH PRESSURE IN HPA 1030.3 1024.8 1029.0 1018.4 1020.8 1015.9 1012.3 1020.2 1020.4 1024.1 1028.2 1024.9 1030.3 DAY 10 16 12 20 2 11 14 31 1 30 4 29 MIN. QNH PRESSURE IN HPA 1009.4 1008.4 1003.5 1004.7 1010.2 1002.7 1004.3 1004.9 1010.6 1014.7 1008.8 1015.7 1002.7 DAY 3 21 31 18 10 27 10 1 18 6 25 27 MEAN QFF PRESSURE IN HPA 1022.9 1017.8 1018.4 1011.3 1011.7 1003.7 1000.2 1005.6 1011.8 1016.3 1020.3 1021.4 1013.4 MAX. QFF PRESSURE IN HPA 1035.7 1029.0 1034.3 1018.8 1020.2 1009.7 1005.3 1015.4 1016.7 1023.2 1028.2 1030.9 1035.7 DAY 10 16 12 8 2 11 14 31 30 30 4 29 MIN. QFF PRESSURE IN HPA 1011.4 1009.5 1002.2 1001.1 1006.6 995.1 996.3 996.4 1005.6 1009.9 1008.2 1017.5 995.1 DAY 3 25 31 18 10 27 19 1 18 6 25 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 919.1 915.4 917.0 913.6 914.9 909.9 908.6 912.5 916.0 918.6 920.2 919.1 915.4 MAX. QFE PRESSURE IN HPA 929.4 923.7 928.5 917.7 920.5 914.9 912.2 920.0 920.0 923.1 928.2 924.1 929.4 DAY 10 16 12 20 2 11 14 31 1 30 4 29 MIN. QFE PRESSURE IN HPA 911.5 909.3 905.0 905.8 909.8 903.0 904.8 906.0 911.1 915.0 910.2 915.3 903.0 DAY 3 25 31 18 4 27 10 1 18 5 25 27 MEAN QNH PRESSURE IN HPA 1020.5 1016.4 1018.2 1014.5 1015.9 1010.4 1009.0 1013.3 1017.1 1019.9 1021.6 1020.5 1016.5 MAX. QNH PRESSURE IN HPA 1031.7 1025.5 1030.7 1019.0 1022.0 1015.9 1013.0 1021.5 1021.5 1024.8 1030.4 1025.9 1031.7 DAY 10 16 12 20 2 11 14 31 1 30 4 29 MIN. QNH PRESSURE IN HPA 1012.2 1009.8 1005.1 1006.0 1010.4 1003.0 1004.9 1006.2 1011.8 1016.0 1010.8 1016.3 1003.0 DAY 3 25 31 18 4 27 10 1 18 5 25 27 MEAN QFF PRESSURE IN HPA 1024.4 1018.7 1019.4 1011.8 1012.2 1003.7 1000.7 1006.3 1012.1 1017.1 1021.4 1022.5 1014.2 MAX. QFF PRESSURE IN HPA 1037.1 1029.2 1035.6 1018.1 1022.0 1009.3 1005.3 1016.3 1017.9 1023.5 1030.1 1031.7 1037.1 DAY 10 16 12 8 2 7 12 31 30 30 4 29 MIN. QFF PRESSURE IN HPA 1014.4 1010.6 1004.4 1002.4 1006.9 994.9 996.6 998.1 1006.1 1012.0 1009.8 1017.8 994.9 DAY 3 25 31 18 19 27 18 1 18 5 25 4 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 918.1 914.2 916.0 912.3 913.9 908.5 907.1 911.0 914.3 916.8 918.5 917.8 914.0 MAX. QFE PRESSURE IN HPA 928.5 922.1 927.8 916.4 921.0 914.0 910.4 918.0 918.7 921.5 926.6 922.0 928.5 DAY 10 16 12 8 2 11 14 31 1 30 4 29 MIN. QFE PRESSURE IN HPA 911.6 906.7 904.5 905.5 908.4 902.4 903.0 904.0 910.0 912.7 907.9 912.9 902.4 DAY 2 24 31 18 4 27 10 1 17 5 25 27 MEAN QNH PRESSURE IN HPA 1019.4 1015.2 1017.1 1013.0 1014.8 1008.9 1007.4 1011.7 1015.2 1018.0 1019.9 1019.1 1015.0 MAX. QNH PRESSURE IN HPA 1030.7 1023.8 1030.0 1017.5 1022.6 1014.9 1011.0 1019.3 1020.1 1023.1 1028.6 1023.6 1030.7 DAY 10 16 12 8 2 11 14 31 1 30 4 29 MIN. QNH PRESSURE IN HPA 1012.3 1007.0 1004.6 1005.7 1008.8 1002.3 1003.0 1004.0 1010.6 1013.5 1008.3 1013.7 1002.3 DAY 2 24 31 18 4 27 10 1 17 5 25 27 MEAN QFF PRESSURE IN HPA 1022.4 1016.6 1017.7 1010.1 1010.9 1002.0 999.0 1004.6 1010.0 1014.6 1018.8 1020.5 1012.3 MAX. QFF PRESSURE IN HPA 1035.0 1026.0 1034.1 1016.1 1022.3 1008.2 1003.5 1014.0 1015.8 1021.1 1027.6 1028.1 1035.0 DAY 10 16 12 3 2 11 12 31 30 30 4 29 MIN. QFF PRESSURE IN HPA 1013.6 1006.1 1002.7 1002.2 1004.6 994.1 994.3 996.0 1005.0 1008.9 1005.5 1014.8 994.1 DAY 17 24 30 18 31 27 10 1 18 5 25 27 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 916.8 912.6 914.1 910.4 912.2 906.6 905.0 908.7 912.3 914.9 917.1 916.4 912.2 MAX. QFE PRESSURE IN HPA 926.7 919.8 926.1 914.6 919.4 911.6 908.6 916.2 917.0 919.8 924.0 920.6 926.7 DAY 10 16 12 8 2 10 14 31 1 29 4 28 MIN. QFE PRESSURE IN HPA 909.1 903.5 901.4 905.4 907.4 900.5 900.9 902.0 907.4 910.3 907.7 912.1 900.5 DAY 2 24 30 17 4 27 18 1 17 5 25 27 MEAN QNH PRESSURE IN HPA 1018.0 1013.4 1015.0 1011.0 1012.9 1006.8 1005.1 1009.2 1013.0 1015.9 1018.3 1017.5 1013.0 MAX. QNH PRESSURE IN HPA 1028.8 1021.2 1028.1 1015.6 1020.8 1012.3 1009.1 1017.3 1018.2 1021.2 1025.8 1022.1 1028.8 DAY 10 16 12 8 2 10 14 31 1 29 4 28 MIN. QNH PRESSURE IN HPA 1009.6 1003.5 1001.2 1005.6 1007.7 1000.2 1000.7 1001.9 1007.7 1010.9 1008.1 1012.9 1000.2 DAY 2 24 30 17 4 27 18 1 17 5 25 27 MEAN QFF PRESSURE IN HPA 1020.8 1014.7 1015.7 1008.2 1009.0 1000.0 996.9 1002.1 1007.9 1012.5 1017.3 1018.8 1010.3 MAX. QFF PRESSURE IN HPA 1032.8 1023.5 1031.9 1014.0 1020.5 1006.1 1001.8 1012.2 1013.7 1018.9 1024.9 1025.9 1032.8 DAY 10 16 12 7 2 7 14 31 1 30 4 29 MIN. QFF PRESSURE IN HPA 1011.7 1002.5 998.7 1000.2 1002.9 992.2 992.5 993.7 1002.4 1006.5 1006.1 1014.3 992.2 DAY 2 24 30 22 23 27 19 1 17 5 25 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.5 913.0 914.2 910.5 912.0 906.2 904.2 908.0 912.0 914.8 917.7 917.2 912.3 MAX. QFE PRESSURE IN HPA 927.8 920.4 925.4 914.0 920.6 911.4 908.0 915.6 916.5 920.4 924.0 922.8 927.8 DAY 9 15 12 2 2 10 14 31 1 29 3 28 MIN. QFE PRESSURE IN HPA 908.1 902.8 902.2 904.8 907.3 900.1 900.0 900.9 906.5 909.9 907.9 912.5 900.0 DAY 2 24 30 17 20 27 18 1 17 5 25 19 MEAN QNH PRESSURE IN HPA 1018.7 1013.9 1015.1 1011.1 1012.7 1006.5 1004.3 1008.4 1012.8 1015.8 1018.9 1018.4 1013.1 MAX. QNH PRESSURE IN HPA 1030.0 1021.9 1027.3 1014.9 1022.1 1012.1 1008.4 1016.7 1017.7 1021.9 1025.8 1024.5 1030.0 DAY 9 15 12 2 2 10 14 31 1 29 3 28 MIN. QNH PRESSURE IN HPA 1008.5 1002.7 1002.1 1004.9 1007.6 999.8 999.7 1000.7 1006.8 1010.5 1008.3 1013.3 999.7 DAY 2 24 30 17 20 27 18 1 17 5 25 19 MEAN QFF PRESSURE IN HPA 1022.4 1016.2 1016.4 1008.8 1009.1 1000.1 996.4 1001.8 1008.5 1013.5 1019.0 1020.6 1011.1 MAX. QFF PRESSURE IN HPA 1034.9 1025.1 1032.1 1015.4 1022.1 1006.5 1001.4 1012.1 1014.5 1020.2 1025.5 1029.0 1034.9 DAY 9 15 12 2 2 8 14 31 30 30 4 28 MIN. QFF PRESSURE IN HPA 1011.2 1003.0 1001.1 1001.8 1002.7 992.1 991.3 992.6 1002.2 1007.0 1006.7 1015.3 991.3 DAY 2 24 30 22 20 27 18 1 17 5 25 19 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 918.1 914.1 915.5 911.9 913.4 907.6 905.1 909.3 913.3 916.2 918.5 917.8 913.4 MAX. QFE PRESSURE IN HPA 928.6 921.9 925.8 916.0 921.0 913.0 908.6 917.0 918.5 921.4 925.3 923.4 928.6 DAY 9 15 12 7 2 6 14 31 1 29 3 28 MIN. QFE PRESSURE IN HPA 907.3 903.6 905.4 906.2 907.8 901.9 900.7 903.0 908.0 910.9 907.2 914.5 900.7 DAY 2 24 30 17 9 24 18 1 17 5 25 19 MEAN QNH PRESSURE IN HPA 1019.4 1015.0 1016.6 1012.7 1014.2 1008.0 1005.3 1009.8 1014.2 1017.3 1019.8 1019.1 1014.3 MAX. QNH PRESSURE IN HPA 1030.8 1023.5 1027.8 1017.1 1022.6 1013.8 1009.1 1018.2 1019.8 1023.0 1027.2 1025.2 1030.8 DAY 9 15 12 7 2 6 14 31 1 29 3 28 MIN. QNH PRESSURE IN HPA 1007.6 1003.6 1005.6 1006.4 1008.2 1001.8 1000.5 1003.0 1008.4 1011.6 1007.5 1015.5 1000.5 DAY 2 24 30 17 9 24 18 1 17 5 25 19 MEAN QFF PRESSURE IN HPA 1023.3 1017.2 1017.6 1009.9 1010.5 1001.1 996.9 1002.8 1009.1 1014.4 1019.6 1021.1 1012.0 MAX. QFF PRESSURE IN HPA 1036.1 1026.3 1032.4 1017.0 1022.5 1008.4 1001.3 1013.0 1015.2 1021.0 1027.0 1029.5 1036.1 DAY 9 15 12 7 2 8 14 31 30 29 3 28 MIN. QFF PRESSURE IN HPA 1010.2 1003.8 1004.1 1003.2 1003.8 993.8 991.6 994.7 1003.1 1007.4 1005.9 1016.9 991.6 DAY 2 24 30 17 31 27 18 1 17 5 25 19 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 918.0 914.2 915.4 912.2 913.6 908.1 905.8 909.9 913.8 916.5 918.5 917.7 913.6 MAX. QFE PRESSURE IN HPA 928.6 922.2 925.3 917.0 920.4 914.0 909.8 917.3 918.5 921.8 925.6 923.1 928.6 DAY 4 15 12 7 2 6 14 31 1 29 3 28 MIN. QFE PRESSURE IN HPA 907.1 906.9 904.7 903.8 909.4 902.1 901.3 904.2 908.7 911.6 906.6 914.0 901.3 DAY 2 24 30 17 31 27 18 1 17 5 25 27 MEAN QNH PRESSURE IN HPA 1019.3 1015.2 1016.5 1013.0 1014.4 1008.5 1006.0 1010.5 1014.7 1017.7 1019.8 1019.0 1014.5 MAX. QNH PRESSURE IN HPA 1030.8 1023.9 1027.2 1018.2 1021.9 1014.9 1010.4 1018.5 1019.8 1023.4 1027.6 1024.8 1030.8 DAY 4 15 12 7 2 6 14 31 1 29 3 28 MIN. QNH PRESSURE IN HPA 1007.4 1007.2 1004.8 1003.8 1009.9 1002.0 1001.1 1004.3 1009.2 1012.3 1006.9 1014.9 1001.1 DAY 2 24 30 17 31 27 18 1 17 5 25 27 MEAN QFF PRESSURE IN HPA 1022.4 1016.6 1017.1 1009.9 1010.5 1001.6 997.6 1003.4 1009.4 1014.4 1018.8 1020.3 1011.8 MAX. QFF PRESSURE IN HPA 1035.4 1025.8 1031.2 1017.8 1021.7 1008.4 1002.6 1013.9 1015.7 1021.2 1026.2 1029.1 1035.4 DAY 4 15 11 7 2 6 14 31 30 29 3 28 MIN. QFF PRESSURE IN HPA 1009.0 1006.6 1002.5 999.8 1003.4 993.8 992.1 996.0 1003.8 1007.6 1004.4 1015.8 992.1 DAY 2 24 30 17 31 27 18 1 17 5 25 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.9 5.6 9.7 17.8 22.4 28.7 31.1 30.0 25.9 16.4 8.2 6.0 16.9 MINIMUN AIR TEMPERATURE (C) -3.7 0.4 3.1 10.4 14.5 18.8 21.8 20.7 15.5 7.9 2.6 0.1 9.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 2 7 21 16 1 0 0 0 47 DAYS WITH MINIMUM TEMP. <=-4 15 2 0 0 0 0 0 0 0 0 5 2 24 DAYS WITH FREEZING MIN.<= 0 27 15 6 0 0 0 0 0 0 0 9 17 74 TEMPERATURE RECORDS LOWEST(C) -12.6 -5.5 -3.0 5.6 9.0 14.2 19.0 16.0 11.0 0.6 -5.0 -4.4 -12.6 DAY 11 17 23 30 1 7 3 31 18 10 15 7 MAXIMUM AIR TEMPERATURE (C) 6.5 11.5 16.5 25.4 30.0 37.1 38.7 38.0 35.5 25.0 14.7 12.8 24.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 4 17 30 31 31 29 3 0 0 145 DAYS WITH MAXIMUM TEMP. <= 0 2 0 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS HIGHEST(C) 17.0 20.0 26.0 33.6 36.0 41.6 43.0 42.0 40.0 35.0 22.0 20.0 43.0 DAY 29 28 30 19 17 29 3 14 2 1 11 28 DIF. BETWEEN (MAX.-MIN.) (C) 10.2 11.1 13.4 15.0 15.5 18.3 16.9 17.3 20.0 17.1 12.1 12.7 15.0 MEAN DAILY TEMP. (MDT) (C) 1.4 6.0 9.8 17.9 22.2 28.0 30.3 29.4 25.5 16.5 8.6 6.5 16.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 9.6 65.0 208.7 287.4 259.2 136.4 4.8 0.0 0.0 971.3 HEATING DEG. DAYS(BASE 18 0C) 514.6 336.2 253.3 33.6 3.0 0.0 0.0 0.0 0.0 63.2 281.6 357.3 1842.8 DEWPOINT (MEAN C) -3.8 0.0 -1.9 2.4 4.5 5.4 9.1 9.4 2.6 -1.0 1.5 -0.0 2.3 MIXING RATIO (G/KG) 3.24 4.34 3.92 5.24 6.16 6.38 8.17 8.34 5.24 4.14 4.98 4.21 5.36 VAPOUR PRESSURE (HPA) 4.76 6.34 5.72 7.62 8.94 9.22 11.77 12.03 7.62 6.07 7.28 6.18 7.80 SATURATION DEF. (HPA) 2.18 3.12 7.04 13.90 19.78 32.49 35.24 32.52 28.27 13.90 4.32 3.66 16.37 RELATIVE HUMIDITY (MEAN %) 74 71 51 42 37 26 27 30 25 35 66 69 46 RELATIVE HUMIDITY (MAX. %) 88 89 77 66 59 42 41 45 42 55 87 86 65 RELATIVE HUMIDITY (MIN. %) 54 46 27 20 18 14 18 20 13 18 43 44 28 RELATIVE HUMIDITY (MEAN% 03UTC) 83 85 72 60 54 41 39 43 40 49 83 83 61 RELATIVE HUMIDITY (MEAN% 09UTC) 60 56 33 28 23 18 21 23 16 21 49 52 33 RELATIVE HUMIDITY (MEAN% 15UTC) 72 62 38 29 26 16 18 22 16 30 58 60 37 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 45.0 64.8 26.3 11.0 12.4 0.0 0.0 0.0 0.0 2.8 25.0 6.2 193.5 DAYS WITH PRECIPITATION >=10 2 4 0 0 0 0 0 0 0 0 0 0 6 DAYS WITH PRECIPITATION >= 5 2 4 3 0 2 0 0 0 0 0 2 0 13 DAYS WITH PRECIPITATION >= 1 5 9 4 4 3 0 0 0 0 1 6 3 35 DAYS WITH PRECIPITATION 6 10 6 7 5 0 0 0 0 2 8 4 48 GREATEST DAILY PRECIPITATION 17.8 17.0 9.6 3.8 6.0 0.0 0.0 0.0 0.0 2.0 8.0 2.0 17.8 DAY 8 2 8 26 13 ** ** ** ** 28 27 1 DAY WITH THUNDER STORM 0 0 0 1 1 0 0 0 1 0 0 0 3 DAYS WITH SNOW OR SLEET 5 0 0 0 0 0 0 0 0 0 1 0 6 DAYS WITH DUST 0 0 0 2 0 1 0 0 0 0 2 1 6 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 90 90 90 90 270 270 270 PREVAILING WIND SPEED(KNOTS) 7.0 6.6 7.5 9.5 9.0 8.3 9.7 9.1 8.5 7.5 7.8 7.7 7.8 PREVAILING WIND PERCENT 22.2 20.1 17.7 24.2 29.8 16.7 39.1 35.9 20.8 14.1 10.8 8.1 14.7 CALMS PERCENT OF WIND 64.5 60.3 48.8 40.0 30.6 40.8 35.5 42.3 49.6 64.5 69.2 79.8 52.1 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 283 288 304 285 296 314 91 87 74 47 303 275 328 VECTOR WIND MAGNITUDE(KNOTS) 1.7 2.0 0.9 3.0 3.5 1.5 3.9 3.4 1.5 0.4 1.0 0.8 0.6 WIND STEADINESES (MEAN %) 70.8 71.4 22.5 52.6 54.7 27.8 68.4 69.4 37.5 16.0 45.5 61.5 15.4 WIND SPEED (MEAN KNOTS) 2.4 2.8 4.0 5.7 6.4 5.4 5.7 4.9 4.0 2.5 2.2 1.3 3.9 FASTEST WIND DIRECTION 270 330 270 300 280 280 90 30 300 280 270 320 270 FASTEST WIND SPEED (KNOTS) 19 19 39 23 29 23 19 29 19 17 29 16 39 DAY 18 5 22 13 13 5 2 9 15 1 14 10 DAYS WITH SKY CLEAR (0-2)/8 19 9 14 8 12 29 30 28 29 22 14 11 225 DAYS WITH P.CLOUDY (3-6)/8 3 12 11 16 14 1 1 3 1 9 10 15 96 DAYS WITH CLOUDY (7-8)/8 9 7 6 6 5 0 0 0 0 0 6 5 44 DAYS WITH VISIBILITY =< 2 KM 5 0 1 0 0 0 0 0 0 0 1 1 8 DURATION OF SUNSHINE HOURS 171.9 161.0 223.0 200.4 268.4 368.7 373.0 343.8 310.8 257.8 171.3 154.3 3004.4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 919.0 916.8 915.2 912.8 912.5 908.7 908.1 909.8 911.7 920.0 918.5 920.4 914.5 MAX. QFE PRESSURE IN HPA 928.6 925.1 923.2 921.1 921.0 919.6 915.5 915.5 920.5 927.0 927.0 927.3 928.6 DAY-HOUR 6- 6 9- 6 23- 6 1- 6 9- 6 23- 3 27- 6 25- 6 23- 6 17- 6 21- 6 26- 6 MIN. QFE PRESSURE IN HPA 909.6 907.0 907.0 904.8 907.9 902.1 901.6 902.2 904.6 910.7 905.5 912.7 901.6 DAY-HOUR 8-12 3-12 21-15 20-15 2-15 3-15 12-15 12-15 3-15 2-15 11-12 5-12 MEAN QNH PRESSURE IN HPA 1020.4 1018.0 1016.3 1013.6 1013.3 1009.1 1008.5 1010.3 1012.4 1021.5 1019.9 1021.9 1015.4 MAX. QNH PRESSURE IN HPA 1030.8 1027.0 1024.9 1022.7 1022.6 1021.0 1016.6 1016.6 1022.0 1029.1 1029.1 1029.4 1030.8 DAY-HOUR 6- 6 9- 6 23- 6 1- 6 9- 6 23- 3 27- 6 25- 6 23- 6 17- 6 21- 6 26- 6 MIN. QNH PRESSURE IN HPA 1010.1 1007.3 1007.3 1004.9 1008.3 1002.0 1001.4 1002.1 1004.7 1011.3 1005.7 1013.5 1001.4 DAY-HOUR 8-12 3-12 21-15 20-15 2-15 3-15 12-15 12-15 3-15 2-15 11-12 5-12 MEAN QFF PRESSURE IN HPA 1023.8 1019.5 1016.1 1010.3 1008.5 1002.2 1000.6 1002.8 1006.4 1019.0 1020.3 1023.3 1012.7 MAX. QFF PRESSURE IN HPA 1033.3 1029.6 1027.1 1020.3 1019.9 1015.4 1008.6 1009.9 1016.7 1026.8 1031.6 1031.6 1033.3 DAY-HOUR 6- 6 9- 6 23- 6 1- 6 9- 6 23- 3 28- 3 25- 6 23- 6 8- 6 30- 6 7- 6 MIN. QFF PRESSURE IN HPA 1013.1 1006.8 1006.7 1000.1 1002.1 995.5 993.3 994.2 997.3 1006.0 1003.1 1014.9 993.3 DAY-HOUR 31-12 3-12 21-15 20-15 17-15 3-15 12-15 12-15 3-12 2-12 11-12 28-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 919.0 916.6 914.9 912.9 912.5 908.7 908.2 909.8 912.0 920.0 918.1 920.3 914.4 MAX. QFE PRESSURE IN HPA 926.6 922.6 920.0 919.0 920.2 918.0 914.0 913.5 917.9 925.0 925.0 925.5 926.6 DAY 6 10 17 1 9 23 27 29 16 17 22 27 MIN. QFE PRESSURE IN HPA 909.6 909.2 908.0 909.0 908.7 905.0 902.0 904.2 907.0 913.0 907.0 913.2 902.0 DAY 9 3 22 13 6 16 12 12 3 2 11 5 MEAN QNH PRESSURE IN HPA 1020.4 1017.8 1015.9 1013.8 1013.3 1009.1 1008.6 1010.4 1012.7 1021.5 1019.3 1021.8 1015.4 MAX. QNH PRESSURE IN HPA 1028.6 1024.3 1021.5 1020.4 1021.7 1019.3 1014.9 1014.4 1019.2 1026.9 1026.9 1027.5 1028.6 DAY 6 10 17 1 9 23 27 29 16 17 22 27 MIN. QNH PRESSURE IN HPA 1010.1 1009.7 1008.4 1009.5 1009.2 1005.1 1001.9 1004.3 1007.3 1013.8 1007.3 1014.1 1001.9 DAY 9 3 22 13 6 16 12 12 3 2 11 5 MEAN QFF PRESSURE IN HPA 1023.4 1018.9 1015.6 1010.4 1008.4 1002.3 1000.8 1002.8 1006.4 1018.6 1019.3 1022.8 1012.5 MAX. QFF PRESSURE IN HPA 1031.5 1025.9 1023.4 1017.9 1018.7 1013.7 1006.6 1006.7 1012.9 1024.5 1027.9 1029.9 1031.5 DAY 7 10 23 1 9 23 27 25 23 9 30 7 MIN. QFF PRESSURE IN HPA 1014.1 1010.4 1007.8 1004.7 1003.6 997.4 993.7 996.3 999.4 1008.1 1004.9 1016.3 993.7 DAY 31 4 22 21 20 16 12 12 3 2 11 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 918.9 917.0 915.8 913.6 913.5 910.3 909.8 911.4 913.1 920.8 918.6 920.7 915.3 MAX. QFE PRESSURE IN HPA 926.6 923.5 921.8 919.7 920.4 919.6 915.0 915.0 919.1 926.0 925.0 925.8 926.6 DAY 6 9 23 1 9 23 28 24 16 17 21 26 MIN. QFE PRESSURE IN HPA 909.6 908.6 908.4 909.2 909.9 907.2 905.0 905.9 908.7 913.6 906.6 913.8 905.0 DAY 9 3 22 13 29 19 12 12 3 2 11 5 MEAN QNH PRESSURE IN HPA 1020.3 1018.2 1016.9 1014.5 1014.4 1010.9 1010.3 1012.1 1013.9 1022.4 1019.9 1022.2 1016.3 MAX. QNH PRESSURE IN HPA 1028.6 1025.3 1023.4 1021.1 1021.9 1021.0 1016.0 1016.0 1020.5 1028.0 1026.9 1027.8 1028.6 DAY 6 9 23 1 9 23 28 24 16 17 21 26 MIN. QNH PRESSURE IN HPA 1010.1 1009.1 1008.8 1009.7 1010.5 1007.5 1005.1 1006.1 1009.2 1014.5 1006.9 1014.7 1005.1 DAY 9 3 22 13 29 19 12 12 3 2 11 5 MEAN QFF PRESSURE IN HPA 1024.0 1020.0 1017.2 1011.6 1009.9 1004.2 1002.6 1005.0 1008.5 1020.5 1020.7 1024.0 1014.0 MAX. QFF PRESSURE IN HPA 1031.0 1028.0 1026.4 1019.2 1019.5 1015.4 1008.6 1009.8 1015.4 1026.4 1029.3 1030.5 1031.0 DAY 6 9 23 1 9 23 28 31 16 9 30 7 MIN. QFF PRESSURE IN HPA 1015.3 1010.0 1009.4 1004.7 1004.7 1000.3 997.3 998.4 1002.7 1010.2 1004.8 1017.4 997.3 DAY 9 3 22 21 29 19 12 12 3 2 11 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 920.3 918.5 917.2 914.5 914.1 910.9 910.4 912.1 914.1 922.1 920.2 921.8 916.3 MAX. QFE PRESSURE IN HPA 928.6 925.1 923.2 921.1 921.0 919.5 915.5 915.5 920.5 927.0 927.0 927.3 928.6 DAY 6 9 23 1 9 23 27 25 23 17 21 26 MIN. QFE PRESSURE IN HPA 910.8 909.8 910.2 910.1 910.9 907.9 906.5 906.4 909.5 915.0 908.1 914.8 906.4 DAY 8 3 22 13 20 19 13 12 14 2 11 5 MEAN QNH PRESSURE IN HPA 1021.7 1019.8 1018.4 1015.5 1015.1 1011.5 1011.1 1012.9 1015.0 1023.7 1021.6 1023.4 1017.5 MAX. QNH PRESSURE IN HPA 1030.8 1027.0 1024.9 1022.7 1022.6 1020.9 1016.6 1016.6 1022.0 1029.1 1029.1 1029.4 1030.8 DAY 6 9 23 1 9 23 27 25 23 17 21 26 MIN. QNH PRESSURE IN HPA 1011.5 1010.4 1010.8 1010.7 1011.6 1008.3 1006.8 1006.7 1010.0 1016.0 1008.5 1015.8 1006.7 DAY 8 3 22 13 20 19 13 12 14 2 11 5 MEAN QFF PRESSURE IN HPA 1025.6 1021.6 1018.3 1012.1 1010.3 1004.5 1003.1 1005.3 1009.1 1021.3 1022.2 1025.2 1014.9 MAX. QFF PRESSURE IN HPA 1033.3 1029.6 1027.1 1020.3 1019.9 1015.1 1008.3 1009.9 1016.7 1026.8 1031.6 1031.6 1033.3 DAY 6 9 23 1 9 23 27 25 23 8 30 7 MIN. QFF PRESSURE IN HPA 1014.9 1011.1 1010.8 1005.7 1004.9 1000.3 998.7 998.8 1002.8 1010.8 1006.8 1018.6 998.7 DAY 8 3 8 20 20 19 15 12 3 2 11 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 919.3 917.5 915.9 913.1 912.9 909.4 909.0 910.7 912.4 920.5 918.9 920.5 915.0 MAX. QFE PRESSURE IN HPA 927.8 924.6 922.2 918.4 919.6 917.5 914.0 914.0 918.3 925.5 926.0 925.0 927.8 DAY 6 9 23 1 9 23 27 25 23 17 21 26 MIN. QFE PRESSURE IN HPA 911.0 908.2 908.6 908.4 908.7 905.2 904.6 905.4 907.6 912.6 906.5 913.5 904.6 DAY 8 3 8 13 31 3 12 12 3 2 11 5 MEAN QNH PRESSURE IN HPA 1020.7 1018.7 1017.0 1013.9 1013.7 1009.9 1009.5 1011.3 1013.2 1022.0 1020.3 1022.0 1016.0 MAX. QNH PRESSURE IN HPA 1030.0 1026.5 1023.9 1019.7 1021.0 1018.7 1014.9 1014.9 1019.6 1027.5 1028.0 1026.9 1030.0 DAY 6 9 23 1 9 23 27 25 23 17 21 26 MIN. QNH PRESSURE IN HPA 1011.7 1008.6 1009.1 1008.8 1009.2 1005.4 1004.7 1005.6 1008.0 1013.4 1006.8 1014.4 1004.7 DAY 8 3 8 13 31 3 12 12 3 2 11 5 MEAN QFF PRESSURE IN HPA 1023.8 1020.0 1016.6 1010.5 1008.7 1002.8 1001.6 1003.6 1007.0 1019.1 1020.3 1023.0 1013.1 MAX. QFF PRESSURE IN HPA 1032.3 1028.4 1025.6 1016.6 1018.2 1012.9 1006.8 1008.0 1014.1 1024.7 1029.9 1029.5 1032.3 DAY 6 9 23 1 9 22 27 25 23 16 30 7 MIN. QFF PRESSURE IN HPA 1014.9 1008.6 1007.2 1003.8 1002.3 998.5 996.5 997.9 1000.7 1007.9 1004.3 1016.3 996.5 DAY 29 3 8 20 20 3 12 11 3 2 11 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 918.0 915.8 914.0 911.2 911.3 907.3 906.7 908.4 910.2 918.6 917.6 919.2 913.2 MAX. QFE PRESSURE IN HPA 926.6 922.8 919.8 916.4 918.2 915.6 912.0 911.7 916.1 924.0 924.0 923.6 926.6 DAY 6 9 23 16 9 22 27 30 22 17 21 6 MIN. QFE PRESSURE IN HPA 909.6 907.0 908.0 906.0 908.0 902.9 902.0 903.0 905.0 910.9 905.5 912.7 902.0 DAY 8 3 10 12 7 3 12 12 3 2 11 5 MEAN QNH PRESSURE IN HPA 1019.3 1016.9 1014.9 1011.9 1012.0 1007.7 1007.0 1008.8 1010.7 1019.9 1018.9 1020.6 1014.0 MAX. QNH PRESSURE IN HPA 1028.6 1024.5 1021.2 1017.5 1019.5 1016.7 1012.8 1012.4 1017.2 1025.8 1025.8 1025.4 1028.6 DAY 6 9 23 16 9 22 27 30 22 17 21 6 MIN. QNH PRESSURE IN HPA 1010.1 1007.3 1008.4 1006.2 1008.4 1002.8 1001.9 1003.0 1005.1 1011.6 1005.7 1013.5 1001.9 DAY 8 3 10 12 7 3 12 12 3 2 11 5 MEAN QFF PRESSURE IN HPA 1022.2 1017.9 1014.6 1008.6 1007.1 1000.8 999.1 1001.1 1004.4 1017.1 1018.9 1021.5 1011.1 MAX. QFF PRESSURE IN HPA 1030.9 1026.4 1022.9 1014.5 1016.6 1010.7 1004.5 1004.9 1011.5 1022.9 1028.1 1027.6 1030.9 DAY 6 9 23 1 9 22 27 30 23 17 30 6 MIN. QFF PRESSURE IN HPA 1013.1 1006.8 1007.4 1000.9 1002.2 996.3 993.7 995.0 997.3 1006.0 1003.1 1014.9 993.7 DAY 31 3 21 20 20 3 12 12 3 2 11 28 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 918.4 916.0 914.0 911.2 911.2 906.7 906.0 907.8 909.7 918.7 918.0 919.8 913.1 MAX. QFE PRESSURE IN HPA 927.0 922.8 919.2 916.2 917.6 914.6 911.0 911.4 915.5 923.5 923.8 924.8 927.0 DAY 6 9 23 16 9 22 27 30 23 17 21 6 MIN. QFE PRESSURE IN HPA 909.6 907.3 907.0 904.8 907.9 902.1 901.6 902.2 904.6 910.7 907.4 913.8 901.6 DAY 8 3 21 20 2 3 12 12 3 2 10 5 MEAN QNH PRESSURE IN HPA 1019.8 1017.1 1014.9 1011.9 1011.8 1006.9 1006.2 1008.1 1010.2 1020.0 1019.3 1021.2 1014.0 MAX. QNH PRESSURE IN HPA 1029.1 1024.5 1020.6 1017.3 1018.9 1015.6 1011.7 1012.1 1016.6 1025.3 1025.6 1026.7 1029.1 DAY 6 9 23 16 9 22 27 30 23 17 21 6 MIN. QNH PRESSURE IN HPA 1010.1 1007.6 1007.3 1004.9 1008.3 1002.0 1001.4 1002.1 1004.7 1011.3 1007.7 1014.7 1001.4 DAY 8 3 21 20 2 3 12 12 3 2 10 5 MEAN QFF PRESSURE IN HPA 1023.4 1018.7 1015.1 1009.0 1007.3 1000.1 998.4 1000.9 1004.8 1018.1 1020.2 1022.9 1011.6 MAX. QFF PRESSURE IN HPA 1031.5 1027.0 1022.4 1013.8 1016.0 1009.5 1004.2 1005.4 1011.8 1023.4 1028.5 1028.8 1031.5 DAY 6 9 23 16 9 22 27 30 23 17 30 6 MIN. QFF PRESSURE IN HPA 1014.4 1007.9 1006.7 1000.1 1002.1 995.5 993.3 994.2 998.2 1007.2 1006.4 1015.9 993.3 DAY 8 3 21 20 17 3 12 12 3 2 10 28 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 919.1 916.8 914.9 912.8 912.5 907.8 907.1 908.8 910.9 919.7 918.6 920.5 914.1 MAX. QFE PRESSURE IN HPA 927.0 923.6 919.9 916.8 918.6 916.3 912.0 912.8 916.5 924.5 925.0 925.5 927.0 DAY 6 9 17 16 8 22 27 28 23 16 21 26 MIN. QFE PRESSURE IN HPA 909.6 908.5 907.6 907.0 908.4 903.7 903.2 903.0 906.5 912.4 907.9 914.7 903.0 DAY 8 3 21 20 2 3 12 12 2 2 10 4 MEAN QNH PRESSURE IN HPA 1020.5 1018.0 1016.0 1013.6 1013.3 1008.2 1007.4 1009.3 1011.6 1021.1 1020.0 1022.0 1015.1 MAX. QNH PRESSURE IN HPA 1029.1 1025.4 1021.4 1018.0 1019.9 1017.4 1012.8 1013.6 1017.7 1026.4 1026.9 1027.5 1029.1 DAY 6 9 17 16 8 22 27 28 23 16 21 26 MIN. QNH PRESSURE IN HPA 1010.1 1008.9 1008.0 1007.3 1008.8 1003.7 1003.2 1003.0 1006.8 1013.2 1008.3 1015.7 1003.0 DAY 8 3 21 20 2 3 12 12 2 2 10 4 MEAN QFF PRESSURE IN HPA 1024.2 1019.7 1015.8 1010.2 1008.4 1001.1 999.4 1001.7 1005.7 1018.7 1020.6 1023.7 1012.4 MAX. QFF PRESSURE IN HPA 1031.6 1027.7 1022.0 1013.7 1016.9 1011.7 1004.9 1006.3 1012.2 1024.3 1029.2 1029.6 1031.6 DAY 6 9 23 4 8 22 27 25 23 16 30 26 MIN. QFF PRESSURE IN HPA 1015.2 1009.4 1007.5 1001.6 1003.4 996.2 995.0 995.0 999.5 1007.9 1006.2 1017.3 995.0 DAY 8 3 21 20 31 15 14 12 2 2 10 28 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 919.1 916.8 915.2 912.9 912.6 908.5 907.8 909.3 911.4 919.9 918.5 920.5 914.4 MAX. QFE PRESSURE IN HPA 927.0 924.0 920.0 916.7 918.6 917.1 913.0 914.1 916.9 924.7 925.0 925.5 927.0 DAY 6 9 16 16 8 22 27 28 15 17 21 26 MIN. QFE PRESSURE IN HPA 909.6 909.1 907.6 908.4 908.6 904.4 902.6 904.0 907.0 912.6 906.5 914.2 902.6 DAY 8 3 21 12 2 3 11 12 2 1 13 4 MEAN QNH PRESSURE IN HPA 1020.5 1018.0 1016.2 1013.8 1013.4 1008.9 1008.2 1009.9 1012.1 1021.4 1019.8 1022.0 1015.3 MAX. QNH PRESSURE IN HPA 1029.1 1025.8 1021.5 1017.9 1019.9 1018.3 1013.8 1015.0 1018.1 1026.6 1026.9 1027.5 1029.1 DAY 6 9 16 16 8 22 27 28 15 17 21 26 MIN. QNH PRESSURE IN HPA 1010.1 1009.6 1008.0 1008.8 1009.1 1004.5 1002.5 1004.0 1007.3 1013.4 1006.8 1015.2 1002.5 DAY 8 3 21 12 2 3 11 12 2 1 13 4 MEAN QFF PRESSURE IN HPA 1023.6 1019.1 1015.7 1010.3 1008.4 1001.8 1000.3 1002.2 1005.9 1018.5 1019.9 1022.9 1012.4 MAX. QFF PRESSURE IN HPA 1031.8 1027.6 1022.1 1013.8 1016.5 1012.5 1006.2 1006.7 1011.8 1024.0 1028.2 1029.5 1031.8 DAY 6 9 23 4 8 22 27 30 22 17 22 6 MIN. QFF PRESSURE IN HPA 1014.6 1009.7 1007.2 1005.0 1003.3 996.8 994.2 996.4 1000.1 1007.7 1005.6 1017.2 994.2 DAY 8 3 21 20 31 15 11 10 2 1 13 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.8 6.2 13.0 18.7 23.5 29.0 32.3 31.4 23.3 17.7 11.9 3.1 18.0 MINIMUN AIR TEMPERATURE (C) 0.2 0.5 5.9 10.4 15.6 19.1 22.9 21.6 13.5 10.0 6.2 -2.0 10.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 10 28 21 2 0 0 0 62 DAYS WITH MINIMUM TEMP. <=-4 3 2 0 0 0 0 0 0 0 0 0 12 17 DAYS WITH FREEZING MIN.<= 0 16 13 0 0 0 0 0 0 0 0 0 22 51 TEMPERATURE RECORDS LOWEST(C) -6.0 -6.5 0.5 2.0 8.0 8.0 19.2 16.4 6.5 3.0 1.0 -8.0 -8.0 DAY 11 19 18 6 7 6 2 21 22 13 14 8 MAXIMUM AIR TEMPERATURE (C) 12.2 12.9 19.9 26.9 30.9 37.1 40.5 40.2 31.9 25.3 18.6 9.3 25.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 7 19 30 31 31 25 1 0 0 144 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 17.6 20.0 27.5 35.5 36.5 41.0 44.5 44.0 36.0 30.0 24.5 16.0 44.5 DAY 30 27 30 22 29 16 17 1 2 14 2 1 DIF. BETWEEN (MAX.-MIN.) (C) 12.0 12.4 14.0 16.5 15.3 18.0 17.6 18.6 18.4 15.3 12.4 11.3 15.2 MEAN DAILY TEMP. (MDT) (C) 6.2 6.7 12.9 18.7 23.2 28.1 31.7 30.9 22.7 17.7 12.4 3.7 17.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 19.8 85.5 214.1 330.7 306.0 62.0 1.8 0.0 0.0 1019.8 HEATING DEG. DAYS(BASE 18 0C) 365.1 315.8 160.8 34.9 1.7 0.0 0.0 0.0 0.3 28.2 168.2 444.3 1519.2 DEWPOINT (MEAN C) -0.9 -2.9 1.1 4.7 6.3 5.4 9.5 6.6 2.5 5.7 4.5 -3.9 3.2 MIXING RATIO (G/KG) 4.05 3.48 4.73 6.10 6.89 6.53 8.57 7.00 5.33 6.64 6.10 3.32 5.73 VAPOUR PRESSURE (HPA) 5.94 5.08 6.90 8.87 9.99 9.40 12.28 10.07 7.76 9.69 8.88 4.87 8.31 SATURATION DEF. (HPA) 3.66 4.94 8.84 14.44 20.65 32.78 38.52 38.37 22.87 11.50 5.65 3.24 17.12 RELATIVE HUMIDITY (MEAN %) 66 56 49 45 38 26 27 23 28 50 66 63 45 RELATIVE HUMIDITY (MAX. %) 84 77 73 70 62 41 41 37 47 71 85 82 64 RELATIVE HUMIDITY (MIN. %) 41 31 27 24 20 15 16 13 16 30 41 38 26 RELATIVE HUMIDITY (MEAN% 03UTC) 81 72 69 64 58 39 40 37 44 67 82 80 61 RELATIVE HUMIDITY (MEAN% 09UTC) 49 40 33 28 25 18 21 17 19 34 48 45 31 RELATIVE HUMIDITY (MEAN% 15UTC) 59 46 36 34 25 16 18 15 20 41 56 55 35 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 9.6 38.2 25.6 18.6 31.0 0.0 0.0 0.0 0.0 31.6 42.6 4.8 202.0 DAYS WITH PRECIPITATION >=10 0 2 1 1 1 0 0 0 0 0 2 0 7 DAYS WITH PRECIPITATION >= 5 0 2 2 1 2 0 0 0 0 3 4 0 14 DAYS WITH PRECIPITATION >= 1 3 2 4 3 3 0 0 0 0 8 8 1 32 DAYS WITH PRECIPITATION 6 3 5 11 3 0 0 0 0 9 10 5 52 GREATEST DAILY PRECIPITATION 4.2 21.0 14.0 14.0 20.0 0.0 0.0 0.0 0.0 9.0 14.0 4.0 21.0 DAY 16 1 12 30 6 ** ** ** ** 18 25 1 DAY WITH THUNDER STORM 0 0 1 6 2 0 0 0 0 2 2 0 13 DAYS WITH SNOW OR SLEET 1 1 0 0 0 0 0 0 0 0 0 1 3 DAYS WITH DUST 3 1 1 3 2 0 1 1 1 1 0 0 14 WIND DIRECTION (PREVAILING) 270 270 270 315 315 90 90 90 90 90 315 270 90 PREVAILING WIND SPEED(KNOTS) 9.1 8.5 8.7 12.5 8.7 9.0 10.0 10.5 9.1 7.6 6.4 10.8 8.9 PREVAILING WIND PERCENT 18.5 19.2 21.4 17.9 19.4 17.9 37.1 37.1 26.7 10.9 12.9 14.1 14.2 CALMS PERCENT OF WIND 64.9 54.5 47.6 48.8 40.3 41.3 48.0 48.4 60.8 61.7 64.6 69.0 54.1 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 286 278 282 296 301 340 82 88 77 308 293 282 332 VECTOR WIND MAGNITUDE(KNOTS) 2.2 2.2 2.5 2.8 2.1 1.6 4.0 4.3 2.5 0.6 1.1 1.7 0.7 WIND STEADINESES (MEAN %) 75.9 64.7 56.8 59.6 43.7 29.1 80.0 84.3 73.5 20.0 45.8 63.0 17.5 WIND SPEED (MEAN KNOTS) 2.9 3.4 4.4 4.7 4.8 5.5 5.0 5.1 3.4 3.0 2.4 2.7 4.0 FASTEST WIND DIRECTION 280 270 250 260 290 330 90 90 90 300 270 270 260 FASTEST WIND SPEED (KNOTS) 23 23 23 29 23 23 19 21 17 25 16 23 29 DAY 17 1 7 2 3 4 12 10 4 31 8 4 DAYS WITH SKY CLEAR (0-2)/8 16 12 13 15 18 29 31 31 25 18 13 17 238 DAYS WITH P.CLOUDY (3-6)/8 9 13 15 14 12 1 0 0 4 11 10 11 100 DAYS WITH CLOUDY (7-8)/8 6 3 3 1 1 0 0 0 1 2 7 3 27 DAYS WITH VISIBILITY =< 2 KM 0 1 0 0 0 0 0 0 0 0 0 0 1 DURATION OF SUNSHINE HOURS 173.7 198.3 238.1 238.4 293.5 359.4 369.9 355.6 299.9 247.9 180.9 177.0 3132.6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.7 914.9 913.9 914.3 912.3 906.2 904.1 905.9 915.8 919.0 916.3 919.7 913.3 MAX. QFE PRESSURE IN HPA 928.0 925.0 921.5 929.0 919.0 914.1 911.3 913.0 925.5 925.7 924.4 928.1 929.0 DAY-HOUR 10- 6 19- 6 18- 6 5- 6 18- 6 9- 6 2- 6 22- 6 23- 6 10- 6 2- 6 7-18 MIN. QFE PRESSURE IN HPA 906.5 906.5 901.7 906.3 906.0 900.2 897.9 898.6 905.8 911.3 904.9 903.0 897.9 DAY-HOUR 16-12 1- 3 7-12 2- 9 1-12 25-15 30-15 2-15 1-15 2-12 25-21 3-18 MEAN QNH PRESSURE IN HPA 1019.0 1015.9 1014.9 1015.3 1013.0 1006.4 1004.2 1006.1 1016.9 1020.3 1017.4 1021.2 1014.2 MAX. QNH PRESSURE IN HPA 1030.2 1026.9 1023.1 1031.3 1020.4 1015.0 1012.0 1013.8 1027.5 1027.7 1026.3 1030.3 1031.3 DAY-HOUR 10- 6 19- 6 18- 6 5- 6 18- 6 9- 6 2- 6 22- 6 23- 6 10- 6 2- 6 7-18 MIN. QNH PRESSURE IN HPA 1006.8 1006.8 1001.5 1006.6 1006.2 999.9 997.4 998.2 1006.0 1012.0 1005.0 1003.0 997.4 DAY-HOUR 16-12 1- 3 7-12 2- 9 1-12 25-15 30-15 2-15 1-15 2-12 25-21 3-18 MEAN QFF PRESSURE IN HPA 1020.4 1017.1 1013.4 1011.7 1007.8 999.3 995.9 998.2 1011.8 1017.2 1016.3 1023.7 1011.0 MAX. QFF PRESSURE IN HPA 1033.8 1031.4 1022.9 1031.1 1016.1 1008.4 1005.3 1006.4 1023.8 1025.5 1024.4 1036.0 1036.0 DAY-HOUR 10- 6 19- 6 17- 6 5- 6 18- 6 9- 6 2- 6 22- 6 23- 6 10- 6 10- 6 8- 3 MIN. QFF PRESSURE IN HPA 1007.8 1006.1 998.9 1002.0 1000.7 992.3 988.7 990.0 999.0 1006.7 1003.7 1002.7 988.7 DAY-HOUR 16-12 1- 3 7-12 26-15 13-12 25-15 30-18 1-12 2-15 2-12 25-21 4- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 917.7 914.8 913.9 914.6 912.4 906.5 904.6 906.1 915.8 919.0 916.4 919.6 913.4 MAX. QFE PRESSURE IN HPA 926.5 924.0 918.9 924.0 917.6 911.1 909.2 910.4 922.9 924.3 922.6 928.1 928.1 DAY 10 19 18 5 18 9 2 16 23 24 2 8 MIN. QFE PRESSURE IN HPA 908.0 908.0 905.3 907.9 908.2 902.2 900.0 900.6 908.2 914.0 905.4 903.2 900.0 DAY 16 1 12 2 3 22 31 2 1 15 26 4 MEAN QNH PRESSURE IN HPA 1018.9 1015.8 1014.8 1015.6 1013.2 1006.7 1004.7 1006.3 1016.9 1020.4 1017.5 1021.1 1014.3 MAX. QNH PRESSURE IN HPA 1028.5 1025.8 1020.3 1025.8 1018.9 1011.8 1009.7 1011.0 1024.6 1026.1 1024.3 1030.3 1030.3 DAY 10 19 18 5 18 9 2 16 23 24 2 8 MIN. QNH PRESSURE IN HPA 1008.4 1008.4 1005.5 1008.3 1008.6 1002.1 999.7 1000.3 1008.6 1014.9 1005.6 1003.2 999.7 DAY 16 1 12 2 3 22 31 2 1 15 26 4 MEAN QFF PRESSURE IN HPA 1019.7 1016.6 1013.2 1011.9 1007.9 999.5 996.3 998.2 1011.6 1016.8 1016.1 1023.2 1010.9 MAX. QFF PRESSURE IN HPA 1030.5 1030.3 1020.0 1025.9 1014.5 1005.4 1003.0 1002.2 1021.1 1024.4 1022.1 1034.9 1034.9 DAY 10 19 18 6 18 9 2 16 23 24 10 8 MIN. QFF PRESSURE IN HPA 1008.8 1007.1 1004.7 1003.2 1003.5 994.3 990.2 991.0 1000.7 1009.7 1004.6 1002.7 990.2 DAY 16 1 12 26 29 22 31 1 1 15 26 4 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 918.0 915.1 914.6 915.3 913.3 907.9 905.9 907.5 916.9 919.6 916.8 920.0 914.2 MAX. QFE PRESSURE IN HPA 927.2 923.1 919.9 925.2 918.1 913.2 910.9 911.5 924.1 924.4 922.9 927.8 927.8 DAY 10 19 17 5 18 9 2 16 23 9 2 8 MIN. QFE PRESSURE IN HPA 907.4 906.5 905.0 907.9 908.7 903.2 901.4 901.6 909.7 914.8 908.0 904.5 901.4 DAY 16 1 12 2 1 22 31 2 1 2 26 4 MEAN QNH PRESSURE IN HPA 1019.3 1016.1 1015.6 1016.3 1014.2 1008.2 1006.1 1007.9 1018.1 1021.0 1018.0 1021.5 1015.2 MAX. QNH PRESSURE IN HPA 1029.3 1024.8 1021.4 1027.1 1019.4 1014.1 1011.6 1012.2 1025.9 1026.3 1024.6 1030.0 1030.0 DAY 10 19 17 5 18 9 2 16 23 9 2 8 MIN. QNH PRESSURE IN HPA 1007.7 1006.8 1005.1 1008.3 1009.2 1003.2 1001.2 1001.4 1010.2 1015.8 1008.4 1004.6 1001.2 DAY 16 1 12 2 1 22 31 2 1 2 26 4 MEAN QFF PRESSURE IN HPA 1021.1 1017.6 1014.6 1013.2 1009.3 1001.1 998.1 1000.5 1013.5 1018.3 1017.4 1024.4 1012.4 MAX. QFF PRESSURE IN HPA 1032.1 1029.5 1021.7 1027.1 1015.3 1007.7 1004.7 1005.7 1023.5 1024.9 1023.4 1036.0 1036.0 DAY 10 19 17 5 18 9 2 22 23 10 10 8 MIN. QFF PRESSURE IN HPA 1008.4 1006.1 1004.7 1005.5 1004.0 994.9 992.5 993.5 1003.1 1011.1 1008.0 1005.4 992.5 DAY 16 1 12 26 13 22 31 2 1 2 26 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 919.2 916.3 915.9 916.1 914.0 908.4 906.6 908.5 918.1 920.8 918.1 921.1 915.2 MAX. QFE PRESSURE IN HPA 928.0 925.0 921.5 929.0 919.0 914.1 911.3 913.0 925.5 925.7 924.4 928.0 929.0 DAY 10 19 18 5 18 9 2 22 23 10 2 8 MIN. QFE PRESSURE IN HPA 909.5 906.5 906.0 908.6 909.5 903.8 903.0 902.8 911.3 915.2 909.0 905.7 902.8 DAY 16 1 12 2 1 22 8 2 1 2 26 4 MEAN QNH PRESSURE IN HPA 1020.6 1017.5 1017.0 1017.2 1015.0 1008.8 1006.9 1008.9 1019.4 1022.3 1019.3 1022.6 1016.3 MAX. QNH PRESSURE IN HPA 1030.2 1026.9 1023.1 1031.3 1020.4 1015.0 1012.0 1013.8 1027.5 1027.7 1026.3 1030.2 1031.3 DAY 10 19 18 5 18 9 2 22 23 10 2 8 MIN. QNH PRESSURE IN HPA 1010.0 1006.8 1006.2 1009.1 1010.0 1003.8 1003.0 1002.7 1012.0 1016.2 1009.5 1005.9 1002.7 DAY 16 1 12 2 1 22 8 2 1 2 26 4 MEAN QFF PRESSURE IN HPA 1022.4 1019.0 1015.7 1013.5 1009.8 1001.7 998.6 1000.9 1014.1 1019.2 1018.5 1025.5 1013.2 MAX. QFF PRESSURE IN HPA 1033.8 1031.4 1022.9 1031.1 1016.1 1008.4 1005.3 1006.4 1023.8 1025.5 1024.4 1035.9 1035.9 DAY 10 19 17 5 18 9 2 22 23 10 10 8 MIN. QFF PRESSURE IN HPA 1011.0 1006.6 1005.1 1006.0 1004.7 995.8 993.6 993.8 1004.6 1011.6 1008.4 1006.2 993.6 DAY 16 1 7 26 13 22 31 2 1 2 26 4 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 918.1 915.3 914.7 914.6 912.6 906.8 905.0 906.8 916.5 919.3 916.5 919.9 913.8 MAX. QFE PRESSURE IN HPA 926.8 924.5 920.2 928.0 917.5 912.4 909.3 911.0 923.6 924.2 923.3 927.0 928.0 DAY 10 18 18 5 18 8 13 15 23 23 2 7 MIN. QFE PRESSURE IN HPA 907.6 907.7 904.4 906.3 907.3 902.4 901.3 901.1 909.7 913.5 909.0 905.5 901.1 DAY 16 12 7 2 1 22 20 2 1 2 26 4 MEAN QNH PRESSURE IN HPA 1019.4 1016.4 1015.7 1015.6 1013.4 1007.0 1005.2 1007.1 1017.7 1020.7 1017.7 1021.3 1014.8 MAX. QNH PRESSURE IN HPA 1028.9 1026.4 1021.7 1030.2 1018.7 1013.2 1009.8 1011.7 1025.4 1026.0 1025.1 1029.1 1030.2 DAY 10 18 18 5 18 8 13 15 23 23 2 7 MIN. QNH PRESSURE IN HPA 1008.0 1008.1 1004.5 1006.6 1007.6 1002.3 1001.1 1000.9 1010.2 1014.4 1009.5 1005.7 1000.9 DAY 16 12 7 2 1 22 20 2 1 2 26 4 MEAN QFF PRESSURE IN HPA 1020.4 1017.3 1014.0 1011.7 1008.1 999.8 996.8 999.0 1012.4 1017.3 1016.2 1023.4 1011.4 MAX. QFF PRESSURE IN HPA 1031.5 1029.8 1020.4 1030.0 1014.6 1006.5 1002.6 1003.7 1021.6 1023.8 1021.9 1033.8 1033.8 DAY 10 19 18 5 18 8 2 15 23 10 1 7 MIN. QFF PRESSURE IN HPA 1008.4 1008.9 1002.0 1003.8 1002.7 994.1 991.7 991.7 1002.6 1009.3 1007.8 1006.0 991.7 DAY 16 1 7 2 13 22 31 2 1 2 26 4 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 916.6 913.6 912.6 913.0 910.8 904.7 902.7 904.4 914.3 917.5 915.1 918.5 912.0 MAX. QFE PRESSURE IN HPA 924.7 923.0 917.7 925.0 915.5 910.2 907.1 908.4 922.5 923.5 921.0 926.4 926.4 DAY 9 18 18 5 18 8 13 15 23 23 2 7 MIN. QFE PRESSURE IN HPA 906.5 906.5 901.7 906.3 906.0 901.0 899.0 899.4 906.5 911.3 909.0 904.5 899.0 DAY 16 12 7 2 1 25 30 2 1 2 26 4 MEAN QNH PRESSURE IN HPA 1017.8 1014.4 1013.4 1013.8 1011.4 1004.8 1002.6 1004.5 1015.2 1018.8 1016.1 1019.9 1012.7 MAX. QNH PRESSURE IN HPA 1026.6 1024.7 1019.0 1026.9 1016.6 1010.8 1007.4 1008.8 1024.2 1025.3 1022.6 1028.4 1028.4 DAY 9 18 18 5 18 8 13 15 23 23 2 7 MIN. QNH PRESSURE IN HPA 1006.8 1006.8 1001.5 1006.6 1006.2 1000.8 998.6 999.0 1006.8 1012.0 1009.5 1004.6 998.6 DAY 16 12 7 2 1 25 30 2 1 2 26 4 MEAN QFF PRESSURE IN HPA 1018.6 1015.2 1011.8 1010.2 1006.1 997.6 994.2 996.4 1010.0 1015.4 1014.7 1021.9 1009.3 MAX. QFF PRESSURE IN HPA 1028.5 1028.0 1017.9 1026.6 1013.0 1004.1 1000.2 1001.1 1020.7 1022.5 1019.7 1032.8 1032.8 DAY 10 18 3 5 7 8 2 22 23 23 1 7 MIN. QFF PRESSURE IN HPA 1007.8 1006.6 998.9 1002.6 1000.7 992.7 989.4 990.0 999.6 1006.7 1008.0 1004.6 989.4 DAY 16 1 7 26 13 25 30 1 1 2 26 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.2 913.9 912.5 912.8 910.6 904.0 901.7 903.5 913.9 917.7 915.4 919.1 911.9 MAX. QFE PRESSURE IN HPA 925.3 923.6 917.6 924.6 914.9 909.0 906.4 907.7 921.7 923.4 921.4 927.4 927.4 DAY 9 18 18 5 17 8 13 15 23 23 1 7 MIN. QFE PRESSURE IN HPA 909.3 907.5 903.4 907.0 906.0 900.2 897.9 898.6 905.8 912.1 908.7 904.7 897.9 DAY 16 12 7 2 1 25 30 2 1 2 25 3 MEAN QNH PRESSURE IN HPA 1018.4 1014.9 1013.3 1013.6 1011.2 1004.0 1001.6 1003.5 1014.8 1019.0 1016.5 1020.5 1012.6 MAX. QNH PRESSURE IN HPA 1027.2 1025.4 1018.9 1026.5 1015.9 1009.5 1006.7 1008.1 1023.3 1025.2 1023.0 1029.5 1029.5 DAY 9 18 18 5 17 8 13 15 23 23 1 7 MIN. QNH PRESSURE IN HPA 1009.8 1007.9 1003.4 1007.3 1006.2 999.9 997.4 998.2 1006.0 1012.9 1009.2 1004.8 997.4 DAY 16 12 7 2 1 25 30 2 1 2 25 3 MEAN QFF PRESSURE IN HPA 1020.1 1016.3 1012.2 1010.6 1006.3 997.0 993.4 996.0 1010.3 1016.3 1015.8 1023.4 1009.8 MAX. QFF PRESSURE IN HPA 1029.6 1028.9 1018.8 1026.8 1012.3 1003.3 999.1 1000.8 1020.8 1022.9 1021.5 1035.2 1035.2 DAY 9 18 3 5 7 8 2 22 23 23 1 7 MIN. QFF PRESSURE IN HPA 1011.6 1009.1 1001.8 1002.0 1001.1 992.3 988.8 990.1 999.0 1008.1 1008.0 1005.6 988.8 DAY 16 1 7 26 13 25 30 2 2 2 25 3 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 917.8 915.0 913.7 914.0 912.1 905.5 902.9 905.0 915.2 918.9 916.0 919.9 913.0 MAX. QFE PRESSURE IN HPA 926.3 924.0 918.2 924.6 916.7 910.1 908.2 908.9 922.4 924.1 921.9 928.1 928.1 DAY 9 18 3 5 17 8 13 15 22 23 1 7 MIN. QFE PRESSURE IN HPA 909.3 909.0 906.6 908.3 907.5 902.0 898.5 900.0 907.7 914.0 907.0 903.0 898.5 DAY 16 8 12 2 1 25 30 1 1 14 25 3 MEAN QNH PRESSURE IN HPA 1019.0 1016.0 1014.6 1015.0 1012.9 1005.6 1002.9 1005.1 1016.3 1020.3 1017.1 1021.3 1013.8 MAX. QNH PRESSURE IN HPA 1028.3 1025.8 1019.5 1026.5 1017.9 1010.7 1008.6 1009.4 1024.1 1025.9 1023.5 1030.3 1030.3 DAY 9 18 3 5 17 8 13 15 22 23 1 7 MIN. QNH PRESSURE IN HPA 1009.8 1009.5 1006.9 1008.7 1007.9 1001.9 998.1 999.7 1008.1 1014.9 1007.3 1003.0 998.1 DAY 16 8 12 2 1 25 30 1 1 14 25 3 MEAN QFF PRESSURE IN HPA 1020.8 1017.4 1013.3 1011.3 1007.6 998.5 994.5 997.1 1011.0 1017.1 1016.2 1024.2 1010.8 MAX. QFF PRESSURE IN HPA 1030.9 1029.9 1019.4 1026.7 1013.9 1004.0 1000.8 1000.8 1020.4 1024.0 1021.3 1035.8 1035.8 DAY 9 18 1 5 17 7 1 15 23 23 9 7 MIN. QFF PRESSURE IN HPA 1011.7 1010.6 1006.1 1004.7 1002.2 993.5 988.7 990.6 1001.0 1010.7 1006.0 1003.6 988.7 DAY 16 12 12 24 12 25 30 1 1 1 25 3 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 917.5 915.1 913.8 914.4 912.4 906.0 903.6 905.6 915.6 919.1 916.0 919.8 913.2 MAX. QFE PRESSURE IN HPA 926.2 924.0 918.0 924.6 918.7 910.1 908.2 909.7 922.5 924.3 922.1 928.1 928.1 DAY 9 18 17 5 17 8 13 15 22 23 1 7 MIN. QFE PRESSURE IN HPA 909.2 908.1 905.8 906.8 908.0 902.2 899.5 900.3 907.7 914.0 904.9 903.2 899.5 DAY 15 11 11 1 1 21 30 1 2 14 25 3 MEAN QNH PRESSURE IN HPA 1018.8 1016.1 1014.7 1015.3 1013.2 1006.2 1003.6 1005.8 1016.7 1020.5 1017.1 1021.3 1014.1 MAX. QNH PRESSURE IN HPA 1028.2 1025.8 1019.3 1026.5 1020.1 1010.7 1008.6 1010.2 1024.2 1026.1 1023.8 1030.3 1030.3 DAY 9 18 17 5 17 8 13 15 22 23 1 7 MIN. QNH PRESSURE IN HPA 1009.7 1008.5 1006.0 1007.1 1008.4 1002.1 999.1 1000.0 1008.1 1014.9 1005.0 1003.2 999.1 DAY 15 11 11 1 1 21 30 1 2 14 25 3 MEAN QFF PRESSURE IN HPA 1019.8 1017.1 1013.0 1011.5 1007.7 998.9 995.2 997.7 1011.4 1017.1 1015.6 1023.4 1010.7 MAX. QFF PRESSURE IN HPA 1030.5 1029.9 1018.6 1026.6 1015.8 1003.9 1001.8 1002.0 1020.7 1024.3 1021.9 1035.0 1035.0 DAY 9 18 16 5 17 7 1 15 22 23 9 7 MIN. QFF PRESSURE IN HPA 1009.6 1010.1 1004.7 1004.7 1002.3 994.2 989.7 990.8 1001.3 1010.1 1003.7 1002.9 989.7 DAY 31 11 11 25 31 25 30 1 2 14 25 3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.8 8.0 12.6 17.8 22.8 28.2 33.0 31.9 25.0 17.1 11.0 3.2 18.0 MINIMUN AIR TEMPERATURE (C) -1.2 1.1 4.7 10.1 15.2 19.3 23.2 21.0 14.9 7.9 2.4 -2.7 9.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 10 26 18 1 0 0 0 55 DAYS WITH MINIMUM TEMP. <=-4 4 0 0 0 0 0 0 0 0 0 3 14 21 DAYS WITH FREEZING MIN.<= 0 25 12 5 0 0 0 0 0 0 0 11 25 78 TEMPERATURE RECORDS LOWEST(C) -4.6 -2.6 -2.4 3.0 10.0 13.6 19.0 15.4 9.5 1.4 -6.2 -7.4 -7.4 DAY 22 26 7 8 9 1 1 11 22 20 30 1 MAXIMUM AIR TEMPERATURE (C) 14.1 15.7 20.4 25.2 30.5 36.0 41.4 40.9 34.1 26.4 20.9 10.3 26.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 20 30 31 31 27 8 0 0 148 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 20.2 21.0 26.6 30.0 35.4 41.0 45.4 44.5 38.0 36.6 27.5 17.0 45.4 DAY 31 5 24 30 21 29 16 6 9 4 3 2 DIF. BETWEEN (MAX.-MIN.) (C) 15.3 14.6 15.7 15.1 15.3 16.7 18.2 19.9 19.2 18.5 18.5 13.0 16.6 MEAN DAILY TEMP. (MDT) (C) 6.4 8.4 12.6 17.7 22.8 27.7 32.3 31.0 24.5 17.1 11.7 3.8 18.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.6 69.3 200.0 350.6 308.6 111.6 11.7 0.0 0.0 1053.5 HEATING DEG. DAYS(BASE 18 0C) 358.1 268.8 167.8 31.7 0.8 0.0 0.0 0.0 0.0 64.2 189.9 439.3 1520.8 DEWPOINT (MEAN C) -3.2 -1.2 -1.2 4.8 5.3 6.7 7.4 7.5 5.1 -0.7 -5.2 -3.4 1.8 MIXING RATIO (G/KG) 3.38 3.92 4.11 6.17 6.54 7.01 7.40 7.67 6.50 4.23 3.14 3.35 5.29 VAPOUR PRESSURE (HPA) 4.97 5.73 6.00 8.96 9.50 10.12 10.62 11.03 9.40 6.19 4.60 4.93 7.67 SATURATION DEF. (HPA) 4.80 5.57 9.49 12.37 19.64 29.96 42.20 39.10 24.60 15.22 10.08 3.12 18.01 RELATIVE HUMIDITY (MEAN %) 57 56 44 47 38 29 23 25 31 34 36 66 41 RELATIVE HUMIDITY (MAX. %) 79 79 66 70 61 47 39 39 49 54 61 84 61 RELATIVE HUMIDITY (MIN. %) 30 33 22 26 20 15 12 15 19 18 17 40 22 RELATIVE HUMIDITY (MEAN% 03UTC) 77 75 63 67 55 46 38 38 46 49 54 78 57 RELATIVE HUMIDITY (MEAN% 09UTC) 39 41 27 30 24 19 16 19 23 24 20 49 28 RELATIVE HUMIDITY (MEAN% 15UTC) 43 44 30 38 27 18 13 17 23 24 25 58 30 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 5.2 23.8 10.8 20.0 12.6 0.2 0.0 0.0 2.0 0.0 0.0 10.5 85.1 DAYS WITH PRECIPITATION >=10 0 1 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH PRECIPITATION >= 5 0 2 1 1 1 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 1 1 3 2 6 4 0 0 0 1 0 0 3 20 DAYS WITH PRECIPITATION 5 4 2 7 6 1 0 0 1 0 0 5 31 GREATEST DAILY PRECIPITATION 3.4 14.2 9.0 8.0 5.0 0.2 0.0 0.0 2.0 0.0 0.0 4.0 14.2 DAY 18 23 17 24 27 2 ** ** 20 ** ** 12 DAY WITH THUNDER STORM 0 0 0 2 1 0 0 0 1 0 0 0 4 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 1 1 DAYS WITH DUST 0 0 3 2 3 0 1 0 1 0 3 0 13 WIND DIRECTION (PREVAILING) 270 270 270 315 315 315 90 90 90 90 270 270 90 PREVAILING WIND SPEED(KNOTS) 7.3 7.4 9.0 9.2 10.0 8.5 9.9 9.7 7.5 6.6 10.5 6.7 8.5 PREVAILING WIND PERCENT 11.3 15.6 18.5 20.0 18.1 21.3 27.4 32.3 17.9 11.3 15.4 6.9 11.7 CALMS PERCENT OF WIND 71.8 57.1 50.8 40.4 50.0 40.8 53.2 51.2 54.2 64.1 62.1 82.3 56.6 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 287 296 295 295 309 308 79 81 9 15 285 290 324 VECTOR WIND MAGNITUDE(KNOTS) 1.4 1.4 2.4 2.0 1.8 2.5 2.3 3.3 0.9 0.5 1.7 0.3 0.9 WIND STEADINESES (MEAN %) 66.7 43.7 54.5 39.2 39.1 48.1 54.8 75.0 23.1 20.8 53.1 27.3 25.0 WIND SPEED (MEAN KNOTS) 2.1 3.2 4.4 5.1 4.6 5.2 4.2 4.4 3.9 2.4 3.2 1.1 3.6 FASTEST WIND DIRECTION 300 300 270 320 330 300 100 70 210 30 300 280 300 FASTEST WIND SPEED (KNOTS) 29 27 29 23 29 21 19 17 29 16 33 12 33 DAY 1 8 25 5 6 22 5 15 25 11 25 9 DAYS WITH SKY CLEAR (0-2)/8 24 16 18 7 14 24 31 28 28 27 24 15 256 DAYS WITH P.CLOUDY (3-6)/8 6 10 12 17 12 6 0 3 2 4 6 12 90 DAYS WITH CLOUDY (7-8)/8 1 2 1 6 5 0 0 0 0 0 0 4 19 DAYS WITH VISIBILITY =< 2 KM 0 0 0 0 0 0 0 0 0 0 2 0 2 DURATION OF SUNSHINE HOURS 250.1 224.0 269.9 139.9 ****** ****** 350.4 362.1 308.8 299.3 257.6 179.6 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 918.9 916.1 914.4 912.5 914.1 908.3 903.5 907.0 911.4 916.9 917.3 920.6 913.4 MAX. QFE PRESSURE IN HPA 928.6 923.0 925.2 919.4 920.0 916.7 909.6 914.0 921.0 927.2 926.1 926.4 928.6 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 6 4- 6 25- 6 22- 6 25- 6 16- 6 10- 6 MIN. QFE PRESSURE IN HPA 912.5 904.0 904.5 905.5 907.5 900.0 896.3 900.8 902.6 907.6 908.0 915.5 896.3 DAY-HOUR 11-12 5-12 25-15 16-15 5-15 22-12 16-15 22-15 20-12 12-12 11-12 25-12 MEAN QNH PRESSURE IN HPA 1020.2 1017.2 1015.4 1013.3 1015.0 1008.8 1003.5 1007.2 1012.1 1018.1 1018.5 1022.1 1014.3 MAX. QNH PRESSURE IN HPA 1030.8 1024.7 1027.1 1020.8 1021.5 1017.9 1010.1 1014.9 1022.6 1029.3 1028.1 1028.4 1030.8 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 6 4- 6 25- 6 22- 6 25- 6 16- 6 10- 6 MIN. QNH PRESSURE IN HPA 1013.3 1004.0 1004.6 1005.7 1007.9 999.7 995.7 1000.6 1002.5 1008.0 1008.4 1016.6 995.7 DAY-HOUR 11-12 5-12 25-15 16-15 5-15 22-12 16-15 22-15 20-12 12-12 11-12 25-12 MEAN QFF PRESSURE IN HPA 1021.7 1017.7 1014.1 1010.1 1010.0 1001.9 995.0 999.1 1006.4 1015.3 1018.0 1024.6 1011.1 MAX. QFF PRESSURE IN HPA 1032.9 1026.2 1027.3 1019.2 1016.9 1013.0 1002.2 1007.4 1019.2 1028.8 1029.9 1030.6 1032.9 DAY-HOUR 7- 6 12- 6 3- 6 7- 3 29- 9 1- 6 4- 6 25- 6 22- 6 26- 6 28- 6 11- 6 MIN. QFF PRESSURE IN HPA 1014.1 1001.6 1000.7 1002.6 1002.3 991.3 986.7 992.4 996.2 1002.9 1005.1 1018.3 986.7 DAY-HOUR 11-12 5-12 26- 0 16-12 6-12 22-12 16-15 22-12 20-12 12-12 11-12 25-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 918.9 916.2 914.5 912.8 914.4 908.9 903.5 906.9 911.7 916.9 917.4 920.7 913.6 MAX. QFE PRESSURE IN HPA 925.0 921.5 922.4 918.0 918.0 916.0 908.4 911.4 919.0 925.1 923.4 925.3 925.3 DAY 7 14 3 7 26 1 4 25 22 27 28 11 MIN. QFE PRESSURE IN HPA 913.1 907.1 904.6 908.4 911.0 902.4 899.5 903.2 905.9 911.0 912.0 916.8 899.5 DAY 17 5 26 18 7 22 17 23 20 12 25 4 MEAN QNH PRESSURE IN HPA 1020.3 1017.3 1015.4 1013.6 1015.4 1009.4 1003.5 1007.2 1012.4 1018.1 1018.7 1022.2 1014.5 MAX. QNH PRESSURE IN HPA 1026.9 1023.1 1024.1 1019.3 1019.3 1017.1 1008.8 1012.1 1020.4 1027.0 1025.2 1027.2 1027.2 DAY 7 14 3 7 26 1 4 25 22 27 28 11 MIN. QNH PRESSURE IN HPA 1014.0 1007.4 1004.7 1008.8 1011.7 1002.3 999.1 1003.2 1006.1 1011.7 1012.8 1018.0 999.1 DAY 17 5 26 18 7 22 17 23 20 12 25 4 MEAN QFF PRESSURE IN HPA 1021.3 1017.4 1014.0 1010.3 1010.3 1002.5 994.9 998.9 1006.4 1015.0 1017.5 1024.2 1011.1 MAX. QFF PRESSURE IN HPA 1028.0 1023.7 1024.1 1017.7 1015.3 1012.9 1000.8 1004.2 1016.2 1025.6 1027.7 1029.2 1029.2 DAY 8 14 3 7 29 1 4 25 22 27 28 11 MIN. QFF PRESSURE IN HPA 1014.7 1005.3 1000.7 1004.8 1005.6 993.5 989.7 994.5 999.3 1005.7 1011.4 1019.3 989.7 DAY 17 5 26 19 7 22 17 23 20 5 11 4 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 919.2 916.5 915.1 913.5 915.0 909.7 905.0 908.2 912.6 917.7 917.9 921.0 914.3 MAX. QFE PRESSURE IN HPA 925.5 921.1 923.7 918.5 919.2 915.9 909.2 912.8 919.6 925.9 924.1 925.3 925.9 DAY 7 13 3 7 26 1 4 25 22 26 28 11 MIN. QFE PRESSURE IN HPA 913.3 906.3 907.4 908.9 911.6 903.6 900.6 904.2 906.3 910.0 912.5 916.6 900.6 DAY 12 5 26 19 6 22 16 23 20 12 11 4 MEAN QNH PRESSURE IN HPA 1020.6 1017.7 1016.2 1014.4 1016.0 1010.3 1005.2 1008.7 1013.4 1018.9 1019.1 1022.5 1015.2 MAX. QNH PRESSURE IN HPA 1027.5 1022.7 1025.5 1019.8 1020.6 1017.0 1009.7 1013.6 1021.0 1027.9 1025.9 1027.2 1027.9 DAY 7 13 3 7 26 1 4 25 22 26 28 11 MIN. QNH PRESSURE IN HPA 1014.2 1006.6 1007.7 1009.4 1012.3 1003.6 1000.3 1004.3 1006.6 1010.6 1013.3 1017.8 1000.3 DAY 12 5 26 19 6 22 16 23 20 12 11 4 MEAN QFF PRESSURE IN HPA 1022.6 1018.6 1015.4 1011.6 1011.3 1003.7 996.8 1001.0 1008.2 1016.8 1019.1 1025.4 1012.5 MAX. QFF PRESSURE IN HPA 1029.7 1024.6 1026.2 1019.2 1016.0 1012.8 1001.9 1006.3 1018.3 1027.3 1029.2 1029.9 1029.9 DAY 7 13 3 7 29 1 4 25 22 27 28 11 MIN. QFF PRESSURE IN HPA 1015.9 1005.1 1004.9 1004.7 1006.4 995.2 991.5 995.9 1000.5 1006.5 1010.8 1019.9 991.5 DAY 12 5 26 19 6 22 16 23 20 12 11 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 920.7 917.8 916.4 914.2 915.7 910.2 905.8 909.5 913.7 919.2 919.2 922.1 915.4 MAX. QFE PRESSURE IN HPA 928.6 923.0 925.2 919.4 920.0 916.7 909.6 914.0 921.0 927.2 926.1 926.4 928.6 DAY 7 12 3 7 26 1 4 25 22 25 16 10 MIN. QFE PRESSURE IN HPA 914.4 907.3 910.0 909.0 912.7 903.2 900.9 905.6 907.2 911.9 912.4 917.4 900.9 DAY 12 5 26 16 6 22 16 23 20 12 11 4 MEAN QNH PRESSURE IN HPA 1022.2 1019.1 1017.6 1015.2 1016.7 1010.8 1006.0 1010.1 1014.6 1020.6 1020.6 1023.8 1016.4 MAX. QNH PRESSURE IN HPA 1030.8 1024.7 1027.1 1020.8 1021.5 1017.9 1010.1 1014.9 1022.6 1029.3 1028.1 1028.4 1030.8 DAY 7 12 3 7 26 1 4 25 22 25 16 10 MIN. QNH PRESSURE IN HPA 1015.4 1007.6 1010.6 1009.5 1013.5 1003.2 1000.7 1005.8 1007.5 1012.6 1013.2 1018.6 1000.7 DAY 12 5 26 16 6 22 16 23 20 12 11 4 MEAN QFF PRESSURE IN HPA 1024.1 1020.0 1016.5 1011.8 1011.8 1004.0 997.5 1001.9 1008.7 1017.9 1020.4 1026.9 1013.5 MAX. QFF PRESSURE IN HPA 1032.9 1026.2 1027.3 1019.1 1016.5 1013.0 1002.2 1007.4 1019.2 1028.8 1029.9 1030.6 1032.9 DAY 7 12 3 7 29 1 4 25 22 26 28 11 MIN. QFF PRESSURE IN HPA 1017.2 1006.4 1007.4 1004.8 1007.5 994.8 991.5 997.0 1000.5 1007.6 1010.1 1020.8 991.5 DAY 12 5 26 19 6 22 16 23 20 12 11 4 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 919.2 916.6 915.1 912.9 914.3 908.8 904.5 908.0 912.0 917.4 917.4 920.8 913.9 MAX. QFE PRESSURE IN HPA 927.3 921.3 924.0 917.5 919.4 915.2 908.1 912.4 918.0 925.8 924.2 926.1 927.3 DAY 7 12 3 7 26 1 4 25 22 25 16 10 MIN. QFE PRESSURE IN HPA 913.6 905.5 907.0 907.8 911.0 901.9 899.4 903.9 905.0 909.7 909.5 916.7 899.4 DAY 12 5 17 16 5 22 16 22 20 12 11 4 MEAN QNH PRESSURE IN HPA 1020.6 1017.8 1016.1 1013.7 1015.3 1009.3 1004.5 1008.4 1012.8 1018.6 1018.7 1022.4 1014.8 MAX. QNH PRESSURE IN HPA 1029.4 1022.9 1025.8 1018.7 1020.8 1016.2 1008.5 1013.2 1019.3 1027.8 1026.0 1028.1 1029.4 DAY 7 12 3 7 26 1 4 25 22 25 16 10 MIN. QNH PRESSURE IN HPA 1014.5 1005.7 1007.3 1008.2 1011.7 1001.8 999.0 1003.9 1005.1 1010.2 1010.0 1017.9 999.0 DAY 12 5 17 16 5 22 16 22 20 12 11 4 MEAN QFF PRESSURE IN HPA 1021.6 1017.9 1014.6 1010.2 1010.0 1002.4 996.0 1000.1 1006.8 1015.4 1017.5 1024.5 1011.4 MAX. QFF PRESSURE IN HPA 1030.8 1024.0 1026.0 1016.8 1016.9 1011.3 1000.5 1004.9 1015.3 1025.2 1027.6 1030.1 1030.8 DAY 7 13 3 7 29 1 4 25 22 27 28 10 MIN. QFF PRESSURE IN HPA 1015.7 1003.7 1004.2 1004.6 1005.7 993.0 989.7 994.7 998.5 1004.8 1007.0 1020.0 989.7 DAY 11 5 26 16 6 22 16 22 20 12 11 4 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 917.5 914.5 913.0 911.0 912.5 906.8 902.4 905.7 909.8 915.5 915.8 919.3 912.0 MAX. QFE PRESSURE IN HPA 925.1 919.6 921.5 915.5 918.1 913.7 906.2 909.5 915.5 924.8 922.0 925.2 925.2 DAY 7 13 3 12 29 1 4 25 22 25 15 10 MIN. QFE PRESSURE IN HPA 912.5 904.0 904.5 906.0 908.0 900.0 897.0 901.5 902.6 907.6 908.0 915.5 897.0 DAY 11 5 26 16 6 22 16 22 20 12 11 25 MEAN QNH PRESSURE IN HPA 1018.8 1015.5 1013.8 1011.7 1013.3 1007.1 1002.3 1005.9 1010.4 1016.6 1016.9 1020.8 1012.7 MAX. QNH PRESSURE IN HPA 1027.0 1021.0 1023.1 1016.6 1019.4 1014.6 1006.4 1010.0 1016.6 1026.7 1023.6 1027.1 1027.1 DAY 7 13 3 12 29 1 4 25 22 25 15 10 MIN. QNH PRESSURE IN HPA 1013.3 1004.0 1004.6 1006.2 1008.4 999.7 996.4 1001.3 1002.5 1008.0 1008.4 1016.6 996.4 DAY 11 5 26 16 6 22 16 22 20 12 11 25 MEAN QFF PRESSURE IN HPA 1019.7 1015.6 1012.3 1008.4 1008.2 1000.2 993.8 997.6 1004.3 1013.4 1015.8 1022.7 1009.3 MAX. QFF PRESSURE IN HPA 1028.2 1022.0 1023.2 1013.8 1016.3 1009.8 998.7 1002.3 1012.7 1024.3 1025.5 1029.0 1029.0 DAY 7 13 3 7 29 1 4 10 22 26 28 10 MIN. QFF PRESSURE IN HPA 1014.1 1001.6 1001.5 1002.6 1002.3 991.3 986.9 992.4 996.2 1002.9 1005.1 1018.3 986.9 DAY 11 5 26 16 6 22 16 22 20 12 11 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.9 914.8 912.9 911.2 912.3 906.3 901.4 904.9 909.5 915.5 916.3 919.8 911.9 MAX. QFE PRESSURE IN HPA 925.7 919.5 920.8 915.7 917.7 912.9 905.0 908.6 915.0 924.9 922.1 925.4 925.7 DAY 7 13 3 12 29 1 31 10 22 25 16 10 MIN. QFE PRESSURE IN HPA 912.5 906.3 904.5 905.5 907.5 900.8 896.3 900.8 904.9 908.6 908.1 916.0 896.3 DAY 11 5 25 16 5 22 16 22 19 12 25 25 MEAN QNH PRESSURE IN HPA 1019.2 1015.8 1013.8 1011.8 1013.1 1006.5 1001.2 1005.0 1010.1 1016.6 1017.4 1021.3 1012.7 MAX. QNH PRESSURE IN HPA 1027.7 1020.9 1022.3 1016.8 1019.0 1013.7 1005.1 1009.1 1016.0 1026.8 1023.8 1027.3 1027.7 DAY 7 13 3 12 29 1 31 10 22 25 16 10 MIN. QNH PRESSURE IN HPA 1013.3 1006.6 1004.6 1005.7 1007.9 1000.6 995.7 1000.6 1005.0 1009.1 1008.5 1017.1 995.7 DAY 11 5 25 16 5 22 16 22 19 12 25 25 MEAN QFF PRESSURE IN HPA 1021.1 1016.6 1012.9 1009.2 1008.5 999.8 992.9 997.2 1004.8 1014.4 1017.5 1024.1 1009.9 MAX. QFF PRESSURE IN HPA 1030.2 1022.4 1023.0 1014.5 1015.9 1008.9 996.7 1002.8 1012.9 1025.0 1026.6 1029.6 1030.2 DAY 7 13 3 7 29 1 3 10 22 26 28 10 MIN. QFF PRESSURE IN HPA 1014.7 1005.1 1002.2 1003.0 1002.5 993.1 986.7 992.7 998.5 1004.6 1008.2 1019.5 986.7 DAY 11 5 25 16 5 22 16 22 19 4 11 25 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 918.8 915.9 914.0 912.2 914.0 907.9 902.4 906.0 911.0 916.6 917.2 920.6 913.0 MAX. QFE PRESSURE IN HPA 925.7 920.6 921.2 917.0 918.5 914.2 907.3 910.0 917.0 925.2 923.0 925.8 925.8 DAY 7 13 2 6 28 1 3 24 21 25 15 10 MIN. QFE PRESSURE IN HPA 913.8 907.9 906.1 907.0 909.0 901.9 897.2 901.8 906.5 910.4 909.4 916.5 897.2 DAY 11 5 25 16 5 29 16 22 19 12 25 25 MEAN QNH PRESSURE IN HPA 1020.1 1017.0 1014.9 1013.0 1015.0 1008.3 1002.3 1006.3 1011.7 1017.7 1018.4 1022.1 1013.9 MAX. QNH PRESSURE IN HPA 1027.7 1022.1 1022.8 1018.2 1019.8 1015.2 1007.6 1010.6 1018.2 1027.1 1024.7 1027.8 1027.8 DAY 7 13 2 6 28 1 3 24 21 25 15 10 MIN. QNH PRESSURE IN HPA 1014.7 1008.3 1006.3 1007.3 1009.5 1001.8 996.6 1001.6 1006.8 1011.0 1009.9 1017.7 996.6 DAY 11 5 25 16 5 29 16 22 19 12 25 25 MEAN QFF PRESSURE IN HPA 1021.9 1017.9 1013.7 1009.5 1010.0 1001.4 993.7 998.1 1005.8 1015.1 1018.3 1025.1 1010.9 MAX. QFF PRESSURE IN HPA 1029.1 1023.8 1022.9 1016.5 1016.4 1009.4 999.6 1003.3 1014.0 1025.9 1027.4 1029.9 1029.9 DAY 7 13 2 6 29 1 3 24 21 26 28 10 MIN. QFF PRESSURE IN HPA 1016.3 1007.0 1002.7 1003.9 1003.6 993.5 987.0 992.7 999.6 1005.8 1009.7 1020.6 987.0 DAY 11 5 25 16 5 29 16 22 19 4 11 25 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 918.9 916.2 914.3 912.5 914.4 908.2 903.0 906.4 911.3 916.9 917.4 920.6 913.3 MAX. QFE PRESSURE IN HPA 925.2 921.1 921.8 917.0 919.0 913.6 908.4 910.9 917.8 925.4 923.4 925.8 925.8 DAY 7 13 2 6 28 1 3 24 21 25 27 10 MIN. QFE PRESSURE IN HPA 913.5 909.0 905.4 907.0 910.0 902.7 898.1 902.4 906.1 911.0 912.0 917.0 898.1 DAY 11 4 25 16 6 21 16 22 19 11 24 25 MEAN QNH PRESSURE IN HPA 1020.3 1017.4 1015.3 1013.3 1015.3 1008.6 1003.0 1006.7 1012.0 1018.1 1018.6 1022.1 1014.2 MAX. QNH PRESSURE IN HPA 1027.1 1022.7 1023.4 1018.2 1020.4 1014.5 1008.8 1011.6 1019.1 1027.3 1025.2 1027.8 1027.8 DAY 7 13 2 6 28 1 3 24 21 25 27 10 MIN. QNH PRESSURE IN HPA 1014.4 1009.5 1005.6 1007.3 1010.6 1002.6 997.6 1002.3 1006.3 1011.7 1012.8 1018.2 997.6 DAY 11 4 25 16 6 21 16 22 19 11 24 25 MEAN QFF PRESSURE IN HPA 1021.3 1017.5 1013.7 1009.8 1010.0 1001.6 994.4 998.3 1006.1 1014.9 1017.6 1024.2 1010.8 MAX. QFF PRESSURE IN HPA 1029.0 1023.6 1023.5 1016.3 1016.1 1008.5 1000.7 1004.1 1014.8 1025.8 1027.6 1029.8 1029.8 DAY 7 13 2 6 28 1 3 10 21 25 27 10 MIN. QFF PRESSURE IN HPA 1015.3 1007.8 1001.2 1003.6 1004.8 993.7 988.6 993.8 998.8 1005.7 1010.9 1020.5 988.6 DAY 16 4 25 16 6 29 16 22 19 11 24 3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.1 6.9 9.0 16.2 23.9 29.3 31.2 30.4 27.1 17.4 9.6 7.0 17.5 MINIMUN AIR TEMPERATURE (C) -2.4 2.1 4.4 9.8 15.6 20.2 22.5 20.2 17.1 8.2 2.1 -0.1 10.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 15 22 11 1 0 0 0 49 DAYS WITH MINIMUM TEMP. <=-4 13 0 0 0 0 0 0 0 0 0 3 5 21 DAYS WITH FREEZING MIN.<= 0 25 10 2 0 0 0 0 0 0 0 8 19 64 TEMPERATURE RECORDS LOWEST(C) -7.8 -2.0 -1.6 5.0 11.0 16.0 18.0 15.8 13.0 3.0 -5.0 -6.0 -7.8 DAY 15 14 1 4 1 18 18 5 28 20 19 3 MAXIMUM AIR TEMPERATURE (C) 8.0 12.8 14.4 23.4 32.0 37.5 38.7 39.2 36.7 26.7 17.7 15.3 25.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 18 30 31 31 30 6 0 0 148 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 15.4 19.8 27.0 31.0 38.0 42.0 42.0 42.0 40.0 32.0 23.5 21.6 42.0 DAY 8 20 31 22 31 4 3 10 10 14 3 27 DIF. BETWEEN (MAX.-MIN.) (C) 10.4 10.7 10.0 13.6 16.4 17.3 16.2 19.0 19.6 18.5 15.6 15.4 15.2 MEAN DAILY TEMP. (MDT) (C) 2.8 7.4 9.4 16.6 23.8 28.9 30.6 29.7 26.9 17.5 9.9 7.6 17.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.6 89.7 236.5 297.6 268.9 177.1 3.6 0.0 0.0 1075.2 HEATING DEG. DAYS(BASE 18 0C) 470.4 306.7 266.8 61.5 0.0 0.0 0.0 0.0 0.0 42.3 242.0 321.3 1710.9 DEWPOINT (MEAN C) -2.8 1.4 2.5 4.1 7.6 4.1 6.8 8.0 3.2 0.6 -2.0 -4.6 2.4 MIXING RATIO (G/KG) 3.47 4.70 5.21 5.93 7.39 6.05 7.04 7.88 5.41 4.57 3.75 3.16 5.38 VAPOUR PRESSURE (HPA) 5.10 6.86 7.58 8.61 10.72 8.74 10.17 11.36 7.85 6.69 5.52 4.64 7.82 SATURATION DEF. (HPA) 2.35 3.53 4.47 10.84 20.72 34.19 37.02 34.62 30.67 14.69 7.29 6.03 17.20 RELATIVE HUMIDITY (MEAN %) 73 71 68 51 41 24 24 28 24 36 47 48 45 RELATIVE HUMIDITY (MAX. %) 88 90 88 78 67 43 41 46 40 58 66 69 65 RELATIVE HUMIDITY (MIN. %) 51 46 45 27 20 12 12 16 13 18 29 24 26 RELATIVE HUMIDITY (MEAN% 03UTC) 85 86 83 72 64 40 40 45 37 55 64 63 61 RELATIVE HUMIDITY (MEAN% 09UTC) 57 55 52 34 24 16 16 21 15 22 34 30 31 RELATIVE HUMIDITY (MEAN% 15UTC) 69 61 61 41 28 14 15 19 16 26 40 39 36 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 30.8 57.3 64.4 38.1 6.2 2.0 0.4 0.0 0.0 3.0 3.0 1.0 206.2 DAYS WITH PRECIPITATION >=10 0 3 1 1 0 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 5 4 4 4 2 0 0 0 0 0 0 0 0 14 DAYS WITH PRECIPITATION >= 1 6 10 12 6 3 1 0 0 0 1 1 1 41 DAYS WITH PRECIPITATION 9 13 15 9 6 1 1 0 0 2 1 1 58 GREATEST DAILY PRECIPITATION 7.6 17.2 20.0 23.5 2.0 2.0 0.4 0.0 0.0 3.0 3.0 1.0 23.5 DAY 6 5 2 3 12 26 10 ** ** 16 16 22 DAY WITH THUNDER STORM 0 0 0 1 3 0 0 0 0 0 0 0 4 DAYS WITH SNOW OR SLEET 6 3 0 0 0 0 0 0 0 0 0 0 9 DAYS WITH DUST 1 1 0 1 0 0 3 0 4 1 1 0 12 WIND DIRECTION (PREVAILING) 270 270 270 315 315 90 90 90 270 90 90 270 90 PREVAILING WIND SPEED(KNOTS) 5.5 8.0 8.2 9.9 7.7 9.1 9.9 9.4 7.5 7.4 6.9 7.4 8.6 PREVAILING WIND PERCENT 12.9 20.7 14.9 20.0 14.9 26.3 36.7 33.1 14.6 10.9 7.5 15.3 13.1 CALMS PERCENT OF WIND 71.4 56.5 55.6 46.7 50.0 37.5 46.0 41.9 63.3 64.5 76.3 69.4 56.6 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 293 288 297 313 316 86 90 91 283 331 359 285 357 VECTOR WIND MAGNITUDE(KNOTS) 0.8 1.6 1.6 2.8 1.2 1.5 4.2 3.0 0.7 0.4 0.4 1.5 0.5 WIND STEADINESES (MEAN %) 47.1 48.5 43.2 57.1 30.0 25.4 84.0 62.5 26.9 15.4 23.5 62.5 13.9 WIND SPEED (MEAN KNOTS) 1.7 3.3 3.7 4.9 4.0 5.9 5.0 4.8 2.6 2.6 1.7 2.4 3.6 FASTEST WIND DIRECTION 330 300 310 300 310 240 90 90 270 320 300 300 310 FASTEST WIND SPEED (KNOTS) 17 19 27 23 23 27 23 19 16 23 16 19 27 DAY 8 11 14 10 1 5 4 30 19 14 11 15 DAYS WITH SKY CLEAR (0-2)/8 11 11 10 12 19 27 27 29 29 26 19 15 235 DAYS WITH P.CLOUDY (3-6)/8 12 10 9 12 11 2 4 2 1 5 9 14 91 DAYS WITH CLOUDY (7-8)/8 8 8 12 6 1 1 0 0 0 0 2 2 40 DAYS WITH VISIBILITY =< 2 KM 2 1 0 0 0 0 0 0 0 0 0 0 3 DURATION OF SUNSHINE HOURS 157.7 165.8 166.9 222.0 303.9 355.2 360.0 352.2 290.5 294.6 201.5 206.9 3077.2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 920.0 915.3 913.5 914.1 912.9 908.5 909.3 909.1 909.9 916.8 921.5 920.2 914.3 MAX. QFE PRESSURE IN HPA 928.1 923.0 918.8 922.5 919.0 914.8 916.2 918.6 920.0 926.4 933.0 928.2 933.0 DAY-HOUR 26- 6 13- 6 29- 6 4- 6 7- 6 12- 3 4- 6 30- 6 25- 6 2- 6 18- 6 2- 6 MIN. QFE PRESSURE IN HPA 910.3 906.4 907.1 905.0 904.7 902.0 900.8 902.0 903.2 906.6 914.2 912.9 900.8 DAY-HOUR 6-12 10-12 25-21 13-12 29-15 19-15 6-15 8-12 21-15 27-12 6-15 25-12 MEAN QNH PRESSURE IN HPA 1021.5 1016.4 1014.3 1015.0 1013.7 1008.9 1009.8 1009.6 1010.5 1017.9 1023.1 1021.7 1015.2 MAX. QNH PRESSURE IN HPA 1030.3 1024.7 1020.2 1024.2 1020.4 1015.8 1017.3 1019.9 1021.5 1028.4 1035.6 1030.4 1035.6 DAY-HOUR 26- 6 13- 6 29- 6 4- 6 7- 6 12- 3 4- 6 30- 6 25- 6 2- 6 18- 6 2- 6 MIN. QNH PRESSURE IN HPA 1010.9 1006.7 1007.4 1005.1 1004.8 1001.9 1000.6 1001.9 1003.2 1006.9 1015.2 1013.7 1000.6 DAY-HOUR 6-12 10-12 25-21 13-12 29-15 19-15 6-15 8-12 21-15 27-12 6-15 25-12 MEAN QFF PRESSURE IN HPA 1024.4 1017.2 1014.4 1012.3 1008.3 1001.7 1002.0 1002.0 1004.1 1015.0 1023.2 1022.7 1012.3 MAX. QFF PRESSURE IN HPA 1034.2 1026.4 1021.5 1025.2 1016.4 1009.9 1008.8 1013.5 1016.3 1026.4 1037.8 1034.2 1037.8 DAY-HOUR 26- 6 13- 6 1- 6 4- 6 7- 6 12- 6 4- 6 30- 6 25- 6 19- 3 18- 6 3- 6 MIN. QFF PRESSURE IN HPA 1011.8 1005.7 1005.2 1001.0 998.1 994.7 992.4 993.8 997.0 1002.8 1013.7 1012.6 992.4 DAY-HOUR 6-12 10-12 26- 0 13-12 29-12 19-15 7-15 8-12 8-15 27-12 6-12 25-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 920.0 915.0 913.2 914.1 913.2 908.8 909.3 909.2 910.2 916.9 921.5 920.2 914.3 MAX. QFE PRESSURE IN HPA 927.0 920.5 918.5 922.0 917.0 914.6 915.0 917.0 918.0 924.3 931.4 927.0 931.4 DAY 26 24 29 5 7 12 4 30 25 19 19 8 MIN. QFE PRESSURE IN HPA 914.3 907.2 907.1 907.7 908.3 905.0 902.3 904.0 904.7 909.0 915.3 914.3 902.3 DAY 7 11 26 10 25 19 7 8 22 27 29 25 MEAN QNH PRESSURE IN HPA 1021.4 1016.0 1014.1 1015.0 1014.0 1009.3 1009.9 1009.7 1010.8 1018.1 1023.1 1021.7 1015.2 MAX. QNH PRESSURE IN HPA 1029.1 1022.0 1019.8 1023.6 1018.2 1015.6 1016.0 1018.2 1019.3 1026.1 1033.9 1029.1 1033.9 DAY 26 24 29 5 7 12 4 30 25 19 19 8 MIN. QNH PRESSURE IN HPA 1015.3 1007.5 1007.4 1008.1 1008.7 1005.1 1002.2 1004.0 1004.8 1009.5 1016.3 1015.3 1002.2 DAY 7 11 26 10 25 19 7 8 22 27 29 25 MEAN QFF PRESSURE IN HPA 1023.9 1016.6 1013.9 1012.1 1008.5 1002.0 1001.9 1001.9 1004.1 1014.7 1022.7 1022.1 1012.0 MAX. QFF PRESSURE IN HPA 1031.9 1022.8 1019.8 1024.1 1013.6 1009.3 1006.8 1011.0 1014.2 1023.8 1035.5 1031.5 1035.5 DAY 26 4 29 5 8 12 4 30 25 19 19 4 MIN. QFF PRESSURE IN HPA 1016.1 1006.2 1005.2 1003.9 1001.7 997.5 993.6 996.1 998.7 1005.5 1015.1 1014.2 993.6 DAY 5 11 26 13 29 5 7 8 22 27 7 25 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 920.0 915.4 913.7 914.8 914.0 910.0 910.6 910.5 911.3 917.7 922.1 920.5 915.0 MAX. QFE PRESSURE IN HPA 927.0 921.2 918.5 922.0 918.3 914.8 915.5 918.0 919.0 925.3 931.6 927.1 931.6 DAY 26 24 29 5 7 12 4 30 25 2 19 4 MIN. QFE PRESSURE IN HPA 914.0 908.0 907.6 907.2 909.4 905.3 903.6 905.5 905.1 909.0 915.5 914.0 903.6 DAY 5 2 13 13 29 19 7 8 22 27 29 25 MEAN QNH PRESSURE IN HPA 1021.5 1016.4 1014.6 1015.8 1014.9 1010.6 1011.3 1011.2 1012.0 1018.9 1023.7 1022.0 1016.1 MAX. QNH PRESSURE IN HPA 1029.1 1022.8 1019.8 1023.6 1019.6 1015.8 1016.6 1019.3 1020.4 1027.2 1034.1 1029.2 1034.1 DAY 26 24 29 5 7 12 4 30 25 2 19 4 MIN. QNH PRESSURE IN HPA 1014.9 1008.4 1008.0 1007.5 1009.9 1005.5 1003.6 1005.7 1005.2 1009.5 1016.6 1014.9 1003.6 DAY 5 2 13 13 29 19 7 8 22 27 29 25 MEAN QFF PRESSURE IN HPA 1024.7 1017.5 1015.0 1013.2 1010.0 1003.7 1003.7 1004.0 1006.1 1016.7 1024.3 1023.5 1013.5 MAX. QFF PRESSURE IN HPA 1033.0 1024.5 1020.8 1023.2 1015.8 1009.9 1007.8 1013.0 1016.0 1026.4 1037.2 1032.5 1037.2 DAY 26 13 29 4 7 27 22 30 25 19 19 4 MIN. QFF PRESSURE IN HPA 1015.4 1009.2 1007.9 1003.7 1003.8 998.5 995.2 998.6 999.2 1007.1 1016.4 1015.0 995.2 DAY 5 2 13 13 29 19 7 8 22 27 29 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 921.4 916.8 914.8 915.7 914.5 910.6 911.4 911.4 912.1 918.8 923.2 921.8 916.0 MAX. QFE PRESSURE IN HPA 928.1 923.0 918.8 922.5 919.0 914.6 916.2 918.6 920.0 926.4 933.0 928.2 933.0 DAY 26 13 29 4 7 12 4 30 25 2 18 2 MIN. QFE PRESSURE IN HPA 914.5 908.2 909.3 907.9 909.1 905.5 904.7 906.0 906.5 910.0 916.1 915.6 904.7 DAY 6 5 13 13 29 19 7 8 22 27 29 25 MEAN QNH PRESSURE IN HPA 1023.0 1018.0 1015.8 1016.8 1015.5 1011.2 1012.1 1012.2 1012.8 1020.2 1025.0 1023.4 1017.2 MAX. QNH PRESSURE IN HPA 1030.3 1024.7 1020.2 1024.2 1020.4 1015.6 1017.3 1019.9 1021.5 1028.4 1035.6 1030.4 1035.6 DAY 26 13 29 4 7 12 4 30 25 2 18 2 MIN. QNH PRESSURE IN HPA 1015.5 1008.6 1009.8 1008.3 1009.6 1005.7 1004.8 1006.2 1006.8 1010.6 1017.2 1016.7 1004.8 DAY 6 5 13 13 29 19 7 8 22 27 29 25 MEAN QFF PRESSURE IN HPA 1026.4 1019.1 1016.0 1014.2 1010.2 1004.1 1004.2 1004.4 1006.5 1017.2 1025.3 1025.0 1014.4 MAX. QFF PRESSURE IN HPA 1034.2 1026.4 1021.5 1025.2 1016.4 1009.9 1008.8 1013.5 1016.3 1026.2 1037.8 1034.2 1037.8 DAY 26 13 1 4 7 12 4 30 25 19 18 3 MIN. QFF PRESSURE IN HPA 1016.8 1010.9 1009.7 1004.8 1002.9 997.7 996.5 998.3 1001.1 1006.7 1016.9 1016.1 996.5 DAY 6 2 26 13 29 5 7 8 8 27 8 25 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 920.4 916.0 913.9 914.6 913.2 909.2 910.1 910.0 910.4 917.0 921.7 920.5 914.7 MAX. QFE PRESSURE IN HPA 926.4 922.3 917.0 922.2 917.5 913.1 914.5 917.0 919.0 924.1 931.5 927.0 931.5 DAY 10 13 29 5 7 12 4 29 25 19 18 7 MIN. QFE PRESSURE IN HPA 912.6 907.8 908.5 906.5 907.1 904.0 903.2 904.3 905.7 907.8 915.2 914.6 903.2 DAY 6 5 13 13 29 19 7 8 21 27 29 25 MEAN QNH PRESSURE IN HPA 1021.9 1017.1 1014.8 1015.6 1014.1 1009.7 1010.7 1010.5 1011.0 1018.2 1023.3 1022.0 1015.7 MAX. QNH PRESSURE IN HPA 1028.4 1024.0 1018.2 1023.9 1018.7 1014.0 1015.5 1018.2 1020.4 1025.9 1034.0 1029.1 1034.0 DAY 10 13 29 5 7 12 4 29 25 19 18 7 MIN. QNH PRESSURE IN HPA 1013.4 1008.2 1008.9 1006.8 1007.4 1004.0 1003.2 1004.4 1005.9 1008.2 1016.2 1015.6 1003.2 DAY 6 5 13 13 29 19 7 8 21 27 29 25 MEAN QFF PRESSURE IN HPA 1024.6 1017.7 1014.7 1012.9 1008.4 1002.3 1002.8 1002.7 1004.3 1014.8 1022.9 1022.6 1012.5 MAX. QFF PRESSURE IN HPA 1031.3 1025.1 1020.1 1024.3 1014.3 1008.2 1007.0 1011.3 1015.1 1024.1 1035.9 1031.3 1035.9 DAY 26 13 1 5 7 12 4 30 25 19 19 8 MIN. QFF PRESSURE IN HPA 1014.5 1008.5 1008.1 1003.1 1000.3 995.2 994.7 996.3 999.1 1004.1 1014.9 1014.7 994.7 DAY 6 10 26 13 29 5 7 8 8 27 29 25 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 919.0 914.3 912.5 912.9 911.3 906.9 908.2 907.9 908.3 915.1 920.2 918.9 912.9 MAX. QFE PRESSURE IN HPA 925.6 920.0 915.2 921.0 916.0 911.7 912.3 915.0 916.5 922.8 930.0 925.5 930.0 DAY 10 13 28 4 7 27 3 29 25 19 18 7 MIN. QFE PRESSURE IN HPA 910.3 906.4 907.6 905.0 905.1 903.0 901.0 902.0 903.7 906.6 914.4 912.9 901.0 DAY 6 10 13 13 29 19 6 8 21 27 6 25 MEAN QNH PRESSURE IN HPA 1020.3 1015.3 1013.3 1013.7 1012.0 1007.2 1008.6 1008.3 1008.7 1016.1 1021.7 1020.3 1013.8 MAX. QNH PRESSURE IN HPA 1027.6 1021.5 1016.2 1022.6 1017.1 1012.4 1013.1 1016.0 1017.7 1024.5 1032.4 1027.5 1032.4 DAY 10 13 28 4 7 27 3 29 25 19 18 7 MIN. QNH PRESSURE IN HPA 1010.9 1006.7 1008.0 1005.1 1005.2 1003.0 1000.8 1001.9 1003.7 1006.9 1015.4 1013.7 1000.8 DAY 6 10 13 13 29 19 6 8 21 27 6 25 MEAN QFF PRESSURE IN HPA 1022.8 1015.8 1013.1 1010.9 1006.5 1000.0 1000.7 1000.4 1002.0 1012.8 1021.3 1020.7 1010.6 MAX. QFF PRESSURE IN HPA 1030.4 1022.4 1018.3 1023.2 1012.8 1006.3 1004.9 1009.6 1012.1 1022.5 1033.8 1029.6 1033.8 DAY 10 13 1 5 7 27 21 30 25 19 18 3 MIN. QFF PRESSURE IN HPA 1011.8 1005.7 1006.4 1001.0 998.1 995.3 992.5 993.8 997.1 1002.8 1013.7 1012.6 992.5 DAY 6 10 26 13 29 5 6 8 8 27 6 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 919.5 914.6 912.7 912.7 911.1 906.3 907.4 907.1 908.0 915.4 920.6 919.4 912.9 MAX. QFE PRESSURE IN HPA 926.2 919.5 917.3 920.5 915.0 911.0 911.4 914.3 916.0 922.6 931.0 926.0 931.0 DAY 9 23 28 5 7 27 3 30 25 19 18 3 MIN. QFE PRESSURE IN HPA 912.4 907.0 908.2 905.8 904.7 902.0 900.8 902.0 903.2 908.7 914.2 914.3 900.8 DAY 6 10 25 13 29 19 6 8 21 27 6 24 MEAN QNH PRESSURE IN HPA 1020.9 1015.6 1013.6 1013.5 1011.8 1006.5 1007.7 1007.5 1008.4 1016.5 1022.2 1020.8 1013.7 MAX. QNH PRESSURE IN HPA 1028.2 1020.9 1018.5 1022.0 1016.0 1011.7 1012.1 1015.3 1017.1 1024.3 1033.4 1028.0 1033.4 DAY 9 23 28 5 7 27 3 30 25 19 18 3 MIN. QNH PRESSURE IN HPA 1013.2 1007.3 1008.6 1006.0 1004.8 1001.9 1000.6 1001.9 1003.2 1009.2 1015.2 1015.3 1000.6 DAY 6 10 25 13 29 19 6 8 21 27 6 24 MEAN QFF PRESSURE IN HPA 1024.1 1016.7 1013.8 1010.8 1006.9 999.7 1000.2 1000.2 1002.5 1014.2 1022.7 1022.3 1011.2 MAX. QFF PRESSURE IN HPA 1031.4 1022.5 1019.2 1022.8 1011.8 1006.2 1003.6 1009.3 1012.3 1023.6 1035.9 1031.5 1035.9 DAY 9 13 28 5 6 27 3 30 25 19 18 3 MIN. QFF PRESSURE IN HPA 1014.4 1007.1 1006.9 1002.6 998.3 994.7 992.4 994.7 997.0 1007.0 1014.5 1014.8 992.4 DAY 6 10 25 13 29 19 7 8 8 27 6 25 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 920.1 915.4 913.5 914.1 912.7 907.8 908.6 908.3 909.5 916.6 921.5 920.2 914.0 MAX. QFE PRESSURE IN HPA 926.5 920.2 918.4 921.5 917.0 913.0 913.0 916.5 917.0 923.7 931.6 927.0 931.6 DAY 9 23 28 4 7 27 3 29 25 18 18 3 MIN. QFE PRESSURE IN HPA 912.9 908.1 908.7 908.0 907.3 904.0 901.5 903.3 904.5 910.5 915.2 914.5 901.5 DAY 6 10 25 10 29 19 6 8 21 5 6 24 MEAN QNH PRESSURE IN HPA 1021.6 1016.4 1014.4 1015.0 1013.6 1008.2 1009.0 1008.7 1010.0 1017.8 1023.1 1021.6 1015.0 MAX. QNH PRESSURE IN HPA 1028.5 1021.7 1019.7 1023.1 1018.2 1013.8 1013.8 1017.7 1018.2 1025.5 1034.1 1029.1 1034.1 DAY 9 23 28 4 7 27 3 29 25 18 18 3 MIN. QNH PRESSURE IN HPA 1013.7 1008.5 1009.2 1008.4 1007.6 1004.0 1001.3 1003.3 1004.6 1011.1 1016.2 1015.5 1001.3 DAY 6 10 25 10 29 19 6 8 21 5 6 24 MEAN QFF PRESSURE IN HPA 1025.0 1017.5 1014.5 1012.4 1008.1 1000.9 1001.1 1001.0 1003.7 1014.8 1023.4 1023.2 1012.1 MAX. QFF PRESSURE IN HPA 1032.3 1024.1 1019.8 1024.0 1013.4 1007.7 1005.1 1010.5 1012.8 1023.8 1036.1 1032.8 1036.1 DAY 25 3 28 4 7 27 3 29 25 19 18 3 MIN. QFF PRESSURE IN HPA 1015.5 1008.6 1008.1 1005.5 1000.6 996.3 993.0 995.3 998.4 1007.4 1015.8 1015.1 993.0 DAY 6 10 25 12 29 19 6 8 8 26 6 25 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 920.1 915.3 913.5 914.1 913.2 908.3 909.0 908.8 909.9 916.8 921.6 920.2 914.2 MAX. QFE PRESSURE IN HPA 927.0 920.5 918.6 921.5 917.0 914.0 914.0 917.0 917.0 923.5 931.4 927.1 931.4 DAY 25 23 28 4 5 26 3 29 25 18 18 3 MIN. QFE PRESSURE IN HPA 913.5 907.7 907.1 908.3 908.1 904.8 902.0 904.0 905.2 909.8 915.3 914.3 902.0 DAY 6 10 25 9 29 18 6 7 19 26 28 24 MEAN QNH PRESSURE IN HPA 1021.5 1016.4 1014.4 1015.1 1014.0 1008.8 1009.5 1009.3 1010.5 1018.0 1023.2 1021.7 1015.2 MAX. QNH PRESSURE IN HPA 1029.1 1022.0 1019.9 1023.1 1018.2 1014.9 1014.9 1018.2 1018.2 1025.3 1033.9 1029.2 1033.9 DAY 25 23 28 4 5 26 3 29 25 18 18 3 MIN. QNH PRESSURE IN HPA 1014.4 1008.1 1007.4 1008.7 1008.5 1004.9 1001.9 1004.0 1005.4 1010.4 1016.3 1015.3 1001.9 DAY 6 10 25 9 29 18 6 7 19 26 28 24 MEAN QFF PRESSURE IN HPA 1024.2 1017.0 1014.1 1012.3 1008.2 1001.3 1001.5 1001.5 1003.8 1014.7 1022.9 1022.3 1012.0 MAX. QFF PRESSURE IN HPA 1032.1 1023.6 1019.7 1023.8 1014.1 1008.7 1005.9 1010.9 1012.8 1023.8 1035.7 1031.5 1035.7 DAY 25 3 28 4 5 26 3 29 24 19 18 3 MIN. QFF PRESSURE IN HPA 1015.8 1006.9 1005.5 1005.2 1001.4 996.8 992.9 996.1 998.6 1006.4 1015.1 1014.8 992.9 DAY 6 10 25 12 29 5 6 7 8 26 6 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.5 5.2 9.8 17.8 23.8 30.3 34.1 31.9 25.3 20.7 10.8 6.2 18.5 MINIMUN AIR TEMPERATURE (C) -1.8 -3.1 3.0 9.3 14.8 21.4 24.7 20.6 15.3 11.9 4.4 0.8 10.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 18 31 15 1 0 0 0 66 DAYS WITH MINIMUM TEMP. <=-4 10 14 1 0 0 0 0 0 0 0 0 2 27 DAYS WITH FREEZING MIN.<= 0 21 23 8 0 0 0 0 0 0 0 5 14 71 TEMPERATURE RECORDS LOWEST(C) -8.8 -11.2 -6.0 0.4 9.0 16.0 21.0 15.0 10.0 7.0 -1.0 -5.4 -11.2 DAY 29 8 9 12 7 4 14 29 16 30 29 29 MAXIMUM AIR TEMPERATURE (C) 13.9 14.0 17.0 25.9 31.8 37.9 42.0 41.4 34.7 29.6 18.1 12.4 26.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 7 24 30 31 31 29 18 0 0 170 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.6 21.0 24.0 34.0 39.0 41.0 45.0 45.5 41.0 35.0 25.0 17.0 45.5 DAY 6 22 22 26 28 17 18 14 1 4 5 5 DIF. BETWEEN (MAX.-MIN.) (C) 15.7 17.1 14.0 16.6 17.0 16.5 17.3 20.8 19.4 17.7 13.7 11.6 16.5 MEAN DAILY TEMP. (MDT) (C) 6.1 5.5 10.0 17.6 23.3 29.6 33.4 31.0 25.0 20.8 11.3 6.6 18.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 8.3 80.4 259.2 383.2 308.9 119.2 28.5 0.0 0.0 1187.8 HEATING DEG. DAYS(BASE 18 0C) 369.9 350.6 248.1 52.6 0.0 0.0 0.0 0.0 0.0 3.8 202.4 352.3 1579.8 DEWPOINT (MEAN C) -6.1 -8.8 -3.9 -1.0 2.3 5.0 6.6 2.7 1.2 1.6 0.6 1.0 0.1 MIXING RATIO (G/KG) 2.71 2.35 3.34 4.18 5.18 6.24 6.98 5.32 4.70 4.85 4.55 4.61 4.58 VAPOUR PRESSURE (HPA) 3.97 3.44 4.87 6.07 7.54 9.02 10.03 7.70 6.85 7.09 6.67 6.75 6.67 SATURATION DEF. (HPA) 5.75 6.36 8.00 15.92 23.83 35.91 45.60 42.69 27.65 18.96 6.95 3.06 20.06 RELATIVE HUMIDITY (MEAN %) 47 39 42 33 28 23 20 18 24 31 53 72 36 RELATIVE HUMIDITY (MAX. %) 67 62 66 54 49 40 35 33 40 50 73 89 55 RELATIVE HUMIDITY (MIN. %) 26 20 24 16 14 12 11 9 12 17 32 50 20 RELATIVE HUMIDITY (MEAN% 03UTC) 64 59 57 51 44 38 34 32 40 47 69 88 52 RELATIVE HUMIDITY (MEAN% 09UTC) 33 26 30 22 18 16 15 12 14 20 37 58 25 RELATIVE HUMIDITY (MEAN% 15UTC) 36 27 32 23 19 15 12 10 15 23 45 65 27 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 3.6 2.0 14.2 12.2 4.7 5.1 0.0 0.0 0.0 2.3 12.0 20.0 76.1 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 0 1 1 DAYS WITH PRECIPITATION >= 5 0 0 1 0 0 0 0 0 0 0 0 1 2 DAYS WITH PRECIPITATION >= 1 1 1 6 4 3 1 0 0 0 2 4 5 27 DAYS WITH PRECIPITATION 2 1 7 5 4 5 0 0 0 3 4 6 37 GREATEST DAILY PRECIPITATION 3.2 2.0 7.0 4.0 2.0 4.0 0.0 0.0 0.0 1.0 4.0 10.0 10.0 DAY 28 19 29 5 21 15 ** ** ** 12 3 14 DAY WITH THUNDER STORM 0 0 0 0 2 3 0 0 0 0 0 0 5 DAYS WITH SNOW OR SLEET 1 0 1 0 0 0 0 0 0 0 0 0 2 DAYS WITH DUST 1 0 2 2 0 2 0 0 0 1 3 2 13 WIND DIRECTION (PREVAILING) 270 270 270 270 270 90 90 90 270 270 90 270 270 PREVAILING WIND SPEED(KNOTS) 9.1 10.1 10.0 11.2 8.7 11.1 9.4 8.4 7.8 7.6 5.8 6.4 8.9 PREVAILING WIND PERCENT 10.9 21.0 25.8 16.3 21.4 14.6 34.3 34.7 15.0 17.3 4.6 6.5 12.9 CALMS PERCENT OF WIND 71.0 55.4 44.8 50.0 44.8 38.3 50.4 52.0 52.9 61.3 83.3 86.3 57.6 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 293 293 279 283 285 13 85 87 308 289 26 291 306 VECTOR WIND MAGNITUDE(KNOTS) 1.5 2.4 3.2 3.2 2.4 0.4 3.4 3.5 1.2 2.0 0.3 0.6 0.9 WIND STEADINESES (MEAN %) 60.0 57.1 60.4 66.7 48.0 7.0 77.3 87.5 32.4 69.0 33.3 66.7 24.3 WIND SPEED (MEAN KNOTS) 2.5 4.2 5.3 4.8 5.0 5.7 4.4 4.0 3.7 2.9 0.9 0.9 3.7 FASTEST WIND DIRECTION 270 290 270 290 290 270 90 90 270 320 330 330 270 FASTEST WIND SPEED (KNOTS) 23 29 33 29 29 33 23 17 23 23 12 14 33 DAY 31 6 7 28 21 16 3 1 26 7 1 11 DAYS WITH SKY CLEAR (0-2)/8 21 23 10 14 17 18 24 31 30 20 11 16 235 DAYS WITH P.CLOUDY (3-6)/8 8 5 15 14 13 11 7 0 0 8 9 6 96 DAYS WITH CLOUDY (7-8)/8 2 0 6 2 1 1 0 0 0 3 10 9 34 DAYS WITH VISIBILITY =< 2 KM 0 0 1 0 0 1 0 0 0 0 0 2 4 DURATION OF SUNSHINE HOURS 217.7 267.2 212.2 259.2 308.8 325.6 352.4 361.0 320.3 259.5 173.8 162.4 3220.1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 916.3 916.8 912.1 912.0 913.4 908.2 904.0 907.5 912.9 916.1 919.3 918.0 913.1 MAX. QFE PRESSURE IN HPA 925.9 925.5 927.2 920.0 920.8 914.2 910.2 914.2 920.0 923.0 930.2 927.5 930.2 DAY-HOUR 19- 6 7- 6 11- 6 13- 6 12- 6 8- 6 9- 6 25- 6 15- 6 9- 6 8- 6 28- 6 MIN. QFE PRESSURE IN HPA 905.4 908.2 900.6 902.5 903.8 900.5 897.4 900.0 904.0 910.4 913.2 908.0 897.4 DAY-HOUR 16-12 22-15 29-12 10-12 4-12 30-15 16-15 5-15 2-15 6-12 20-12 10- 3 MEAN QNH PRESSURE IN HPA 1017.5 1018.0 1012.9 1012.7 1014.2 1008.6 1004.1 1007.9 1013.7 1017.2 1020.7 1019.3 1013.9 MAX. QNH PRESSURE IN HPA 1027.9 1027.5 1029.3 1021.5 1022.3 1015.2 1010.8 1015.2 1021.5 1024.7 1032.6 1029.6 1032.6 DAY-HOUR 19- 6 7- 6 11- 6 13- 6 12- 6 8- 6 9- 6 25- 6 15- 6 9- 6 8- 6 28- 6 MIN. QNH PRESSURE IN HPA 1005.6 1008.6 1000.3 1002.4 1003.8 1000.2 996.9 999.7 1004.0 1011.0 1014.1 1008.4 996.9 DAY-HOUR 16-12 22-15 29-12 10-12 4-12 30-15 16-15 5-15 2-15 6-12 20-12 10- 3 MEAN QFF PRESSURE IN HPA 1019.0 1019.7 1012.7 1009.6 1009.0 1001.1 995.3 999.9 1008.0 1013.1 1020.1 1020.4 1010.6 MAX. QFF PRESSURE IN HPA 1031.5 1032.3 1030.5 1021.5 1018.5 1007.9 1002.6 1007.9 1017.7 1021.2 1031.8 1032.8 1032.8 DAY-HOUR 19- 6 7- 6 11- 6 12- 6 7- 6 7- 3 9- 6 28- 6 15- 6 9- 6 8- 6 28- 6 MIN. QFF PRESSURE IN HPA 1005.2 1007.5 998.5 998.9 998.2 992.5 987.8 991.3 996.4 1005.3 1012.5 1009.2 987.8 DAY-HOUR 16-12 22-12 7-12 10-12 4-12 30-15 15-21 14-12 2-12 7- 0 5-12 10-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 916.6 916.7 912.1 911.9 913.9 908.6 904.3 907.5 913.1 916.2 919.3 918.0 913.2 MAX. QFE PRESSURE IN HPA 923.5 924.0 923.0 918.0 919.2 912.4 908.4 911.6 918.0 921.0 928.6 926.0 928.6 DAY 24 8 12 13 12 1 8 29 19 9 8 29 MIN. QFE PRESSURE IN HPA 907.4 910.8 904.8 905.5 907.3 903.6 898.6 902.5 907.1 911.0 915.2 909.0 898.6 DAY 17 27 25 10 5 30 16 6 3 7 19 10 MEAN QNH PRESSURE IN HPA 1017.8 1017.9 1012.9 1012.7 1014.8 1009.1 1004.4 1007.9 1013.9 1017.3 1020.7 1019.3 1014.0 MAX. QNH PRESSURE IN HPA 1025.3 1025.8 1024.7 1019.3 1020.6 1013.2 1008.8 1012.3 1019.3 1022.6 1030.8 1028.0 1030.8 DAY 24 8 12 13 12 1 8 29 19 9 8 29 MIN. QNH PRESSURE IN HPA 1007.7 1011.5 1004.9 1005.7 1007.6 1003.6 998.2 1002.4 1007.4 1011.7 1016.2 1009.5 998.2 DAY 17 27 25 10 5 30 16 6 3 7 19 10 MEAN QFF PRESSURE IN HPA 1018.7 1019.1 1012.5 1009.4 1009.6 1001.4 995.5 999.7 1007.8 1012.8 1019.8 1020.1 1010.5 MAX. QFF PRESSURE IN HPA 1026.8 1029.6 1025.8 1019.2 1016.3 1006.1 1001.2 1005.5 1014.3 1018.8 1029.9 1031.1 1031.1 DAY 20 8 11 12 7 1 8 29 15 9 8 29 MIN. QFF PRESSURE IN HPA 1008.2 1009.8 1001.3 1001.1 1002.7 995.8 988.9 993.8 999.4 1005.3 1014.9 1010.0 988.9 DAY 17 22 25 10 5 30 16 15 3 7 19 10 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 916.8 917.5 912.8 912.9 914.8 909.9 905.7 909.2 914.3 916.9 919.8 918.1 914.1 MAX. QFE PRESSURE IN HPA 924.1 923.0 925.0 919.0 920.4 914.0 909.8 912.6 919.2 921.5 929.2 926.3 929.2 DAY 19 8 11 13 12 8 9 25 15 9 8 29 MIN. QFE PRESSURE IN HPA 906.1 911.4 903.9 905.9 908.5 905.0 900.8 904.0 908.4 912.8 915.2 908.0 900.8 DAY 16 22 25 5 5 30 16 6 3 7 19 10 MEAN QNH PRESSURE IN HPA 1017.9 1018.8 1013.7 1013.7 1015.8 1010.5 1005.9 1009.8 1015.2 1018.1 1021.2 1019.4 1015.0 MAX. QNH PRESSURE IN HPA 1025.9 1024.7 1026.9 1020.4 1021.9 1014.9 1010.4 1013.4 1020.6 1023.1 1031.5 1028.3 1031.5 DAY 19 8 11 13 12 8 9 25 15 9 8 29 MIN. QNH PRESSURE IN HPA 1006.3 1012.1 1003.9 1006.1 1008.9 1005.1 1000.6 1004.0 1008.8 1013.6 1016.2 1008.4 1000.6 DAY 16 22 25 5 5 30 16 6 3 7 19 10 MEAN QFF PRESSURE IN HPA 1019.9 1021.1 1013.9 1011.1 1011.1 1003.3 997.3 1002.3 1010.0 1014.7 1021.1 1021.0 1012.2 MAX. QFF PRESSURE IN HPA 1029.3 1029.8 1028.7 1021.4 1018.2 1007.9 1002.3 1007.8 1017.4 1020.3 1031.0 1032.0 1032.0 DAY 19 8 11 12 7 7 9 29 15 9 8 29 MIN. QFF PRESSURE IN HPA 1007.1 1011.2 1001.9 1003.5 1004.6 997.6 991.6 996.2 1001.7 1008.1 1015.7 1009.3 991.6 DAY 16 22 25 28 5 30 16 6 3 7 19 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 918.1 918.8 913.8 913.9 915.0 910.3 906.3 910.1 915.3 918.0 920.9 919.4 915.0 MAX. QFE PRESSURE IN HPA 925.9 925.5 927.2 920.0 920.8 914.2 910.2 914.2 920.0 923.0 930.2 927.5 930.2 DAY 19 7 11 13 12 8 9 25 15 9 8 28 MIN. QFE PRESSURE IN HPA 908.3 912.8 903.9 908.0 908.2 905.0 902.2 905.0 908.8 913.8 916.4 909.5 902.2 DAY 16 27 25 10 4 30 16 6 3 6 19 10 MEAN QNH PRESSURE IN HPA 1019.4 1020.2 1014.7 1014.9 1016.0 1010.9 1006.6 1010.7 1016.3 1019.3 1022.4 1020.9 1016.0 MAX. QNH PRESSURE IN HPA 1027.9 1027.5 1029.3 1021.5 1022.3 1015.2 1010.8 1015.2 1021.5 1024.7 1032.6 1029.6 1032.6 DAY 19 7 11 13 12 8 9 25 15 9 8 28 MIN. QNH PRESSURE IN HPA 1008.7 1013.6 1003.9 1008.4 1008.6 1005.1 1002.1 1005.1 1009.3 1014.7 1017.5 1010.0 1002.1 DAY 16 27 25 10 4 30 16 6 3 6 19 10 MEAN QFF PRESSURE IN HPA 1021.5 1022.3 1014.7 1011.7 1010.7 1003.3 997.8 1002.7 1010.6 1015.2 1022.1 1022.4 1012.9 MAX. QFF PRESSURE IN HPA 1031.5 1032.3 1030.5 1021.5 1018.5 1007.7 1002.6 1007.9 1017.7 1021.2 1031.8 1032.8 1032.8 DAY 19 7 11 12 7 7 9 28 15 9 8 28 MIN. QFF PRESSURE IN HPA 1009.6 1012.7 1002.0 1004.6 1002.8 997.0 992.5 996.5 1002.0 1009.3 1016.7 1011.0 992.5 DAY 16 22 25 28 4 30 16 14 3 6 5 10 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 916.6 917.3 912.3 912.3 913.5 908.8 905.0 908.4 913.4 916.1 919.2 918.0 913.4 MAX. QFE PRESSURE IN HPA 924.3 924.5 925.5 918.7 920.0 912.5 909.4 912.5 918.4 921.5 928.6 926.1 928.6 DAY 19 7 11 13 12 8 19 28 15 9 8 28 MIN. QFE PRESSURE IN HPA 906.9 910.6 902.8 905.0 906.0 904.0 900.2 903.0 906.9 911.4 915.2 910.0 900.2 DAY 17 27 29 10 4 24 16 14 2 6 5 9 MEAN QNH PRESSURE IN HPA 1017.8 1018.6 1013.1 1013.1 1014.4 1009.3 1005.1 1008.8 1014.3 1017.2 1020.6 1019.3 1014.3 MAX. QNH PRESSURE IN HPA 1026.1 1026.4 1027.5 1020.1 1021.5 1013.3 1009.9 1013.3 1019.7 1023.1 1030.8 1028.1 1030.8 DAY 19 7 11 13 12 8 19 28 15 9 8 28 MIN. QNH PRESSURE IN HPA 1007.2 1011.2 1002.7 1005.1 1006.2 1004.0 999.9 1003.0 1007.2 1012.1 1016.2 1010.6 999.9 DAY 17 27 29 10 4 24 16 14 2 6 5 9 MEAN QFF PRESSURE IN HPA 1018.9 1019.9 1012.7 1009.8 1008.8 1001.6 996.2 1000.5 1008.2 1012.6 1019.7 1020.2 1010.7 MAX. QFF PRESSURE IN HPA 1028.5 1029.9 1028.5 1019.2 1016.2 1006.2 1000.5 1005.5 1015.4 1019.2 1029.6 1031.3 1031.3 DAY 19 7 11 12 12 1 19 28 15 9 8 29 MIN. QFF PRESSURE IN HPA 1007.6 1009.5 1001.1 1001.9 1000.2 995.5 990.2 994.0 999.2 1006.4 1012.8 1011.2 990.2 DAY 17 22 25 10 4 30 16 14 3 6 5 9 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 914.9 915.2 910.5 910.4 911.4 906.5 902.6 906.0 911.2 914.4 917.9 916.6 911.5 MAX. QFE PRESSURE IN HPA 922.2 923.0 923.0 917.1 917.0 910.4 906.6 910.0 916.8 920.0 927.6 925.0 927.6 DAY 19 7 11 13 16 8 19 28 18 8 7 28 MIN. QFE PRESSURE IN HPA 905.4 908.8 900.6 902.5 903.8 901.5 898.8 900.5 904.1 910.4 913.2 908.5 898.8 DAY 16 5 29 10 4 30 16 14 2 6 20 10 MEAN QNH PRESSURE IN HPA 1015.9 1016.2 1011.1 1011.1 1012.1 1006.7 1002.5 1006.2 1011.9 1015.4 1019.2 1017.8 1012.2 MAX. QNH PRESSURE IN HPA 1023.9 1024.7 1024.7 1018.3 1018.2 1011.0 1006.9 1010.6 1018.0 1021.5 1029.7 1026.9 1029.7 DAY 19 7 11 13 16 8 19 28 18 8 7 28 MIN. QNH PRESSURE IN HPA 1005.6 1009.3 1000.3 1002.4 1003.8 1001.3 998.4 1000.2 1004.2 1011.0 1014.1 1008.9 998.4 DAY 16 5 29 10 4 30 16 14 2 6 20 10 MEAN QFF PRESSURE IN HPA 1016.8 1017.4 1010.7 1007.7 1006.9 999.1 993.6 998.1 1005.9 1010.9 1018.3 1018.6 1008.7 MAX. QFF PRESSURE IN HPA 1026.0 1027.8 1025.8 1017.1 1014.2 1003.5 997.9 1003.1 1013.2 1017.1 1028.6 1029.5 1029.5 DAY 19 7 11 13 7 8 8 28 15 8 7 29 MIN. QFF PRESSURE IN HPA 1005.2 1007.5 998.5 998.9 998.2 993.3 989.1 991.3 996.4 1005.9 1012.5 1009.2 989.1 DAY 16 22 7 10 4 30 11 14 2 6 5 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 915.3 915.4 910.7 910.4 911.5 905.9 901.6 905.3 910.9 915.0 918.6 917.5 911.5 MAX. QFE PRESSURE IN HPA 923.0 923.0 922.7 917.0 917.8 912.0 905.4 909.9 915.8 920.0 928.7 925.4 928.7 DAY 19 7 11 13 12 14 19 28 15 9 7 28 MIN. QFE PRESSURE IN HPA 906.1 908.2 901.1 903.3 904.6 900.5 897.4 900.0 904.0 911.0 914.4 909.7 897.4 DAY 16 22 29 10 4 30 16 5 2 2 19 10 MEAN QNH PRESSURE IN HPA 1016.3 1016.4 1011.4 1011.1 1012.2 1006.2 1001.4 1005.5 1011.5 1016.0 1019.9 1018.7 1012.2 MAX. QNH PRESSURE IN HPA 1024.7 1024.7 1024.4 1018.2 1019.1 1012.8 1005.6 1010.5 1016.9 1021.5 1030.9 1027.3 1030.9 DAY 19 7 11 13 12 14 19 28 15 9 7 28 MIN. QNH PRESSURE IN HPA 1006.3 1008.6 1000.9 1003.3 1004.7 1000.2 996.9 999.7 1004.0 1011.7 1015.4 1010.2 996.9 DAY 16 22 29 10 4 30 16 5 2 2 19 10 MEAN QFF PRESSURE IN HPA 1018.3 1018.7 1011.6 1008.4 1007.4 999.0 992.9 998.0 1006.4 1012.6 1019.9 1020.3 1009.5 MAX. QFF PRESSURE IN HPA 1028.3 1028.7 1025.9 1017.0 1014.4 1006.8 996.8 1003.8 1013.0 1018.6 1030.2 1031.0 1031.0 DAY 19 7 11 13 12 14 8 28 15 9 7 28 MIN. QFF PRESSURE IN HPA 1006.6 1008.1 1000.5 1001.6 999.8 992.5 987.9 991.5 997.3 1006.7 1014.7 1011.1 987.9 DAY 16 22 29 9 4 30 11 14 2 2 19 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 916.2 916.5 912.3 911.9 913.2 907.5 903.0 906.7 912.5 916.3 919.3 918.1 912.8 MAX. QFE PRESSURE IN HPA 923.5 924.0 923.5 917.7 918.6 912.0 907.0 911.2 917.2 921.0 928.9 926.0 928.9 DAY 19 7 11 13 11 14 19 28 14 9 7 28 MIN. QFE PRESSURE IN HPA 907.3 910.0 904.4 904.4 905.2 901.5 898.2 902.0 906.2 912.4 915.2 910.0 898.2 DAY 31 22 29 9 4 30 15 5 2 6 18 9 MEAN QNH PRESSURE IN HPA 1017.3 1017.7 1013.1 1012.7 1014.1 1007.9 1003.0 1007.0 1013.3 1017.4 1020.7 1019.4 1013.6 MAX. QNH PRESSURE IN HPA 1025.3 1025.8 1025.3 1019.0 1019.9 1012.8 1007.3 1011.9 1018.4 1022.6 1031.2 1028.0 1031.2 DAY 19 7 11 13 11 14 19 28 14 9 7 28 MIN. QNH PRESSURE IN HPA 1007.6 1010.6 1004.5 1004.5 1005.4 1001.3 997.7 1001.9 1006.4 1013.2 1016.2 1010.6 997.7 DAY 31 22 29 9 4 30 15 5 2 6 18 9 MEAN QFF PRESSURE IN HPA 1019.4 1019.8 1012.9 1009.5 1008.7 1000.4 994.2 999.0 1007.6 1013.3 1020.4 1020.9 1010.5 MAX. QFF PRESSURE IN HPA 1029.4 1029.6 1026.2 1018.4 1015.1 1005.3 998.3 1005.0 1014.2 1018.7 1030.5 1031.6 1031.6 DAY 19 7 11 12 6 14 7 28 14 9 7 28 MIN. QFF PRESSURE IN HPA 1009.6 1010.0 1004.4 1001.5 999.5 993.2 988.1 993.1 999.3 1007.9 1015.6 1011.6 988.1 DAY 16 22 25 9 4 30 15 14 2 2 5 9 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 916.3 916.8 912.3 912.1 913.6 908.0 903.8 907.2 912.9 916.3 919.3 918.1 913.0 MAX. QFE PRESSURE IN HPA 923.3 924.0 923.5 918.0 919.2 912.0 907.3 911.2 917.3 920.5 928.8 926.0 928.8 DAY 23 7 11 12 11 10 19 28 14 8 7 28 MIN. QFE PRESSURE IN HPA 907.5 910.0 905.2 905.1 905.6 902.0 898.2 901.4 906.9 912.8 915.2 910.0 898.2 DAY 16 22 29 9 4 30 15 5 2 2 18 9 MEAN QNH PRESSURE IN HPA 1017.5 1018.0 1013.0 1012.8 1014.5 1008.4 1003.8 1007.5 1013.7 1017.4 1020.7 1019.4 1013.9 MAX. QNH PRESSURE IN HPA 1025.1 1025.8 1025.3 1019.3 1020.6 1012.8 1007.6 1011.9 1018.5 1022.0 1031.0 1028.0 1031.0 DAY 23 7 11 12 11 10 19 28 14 8 7 28 MIN. QNH PRESSURE IN HPA 1007.9 1010.6 1005.4 1005.2 1005.8 1001.9 997.7 1001.2 1007.2 1013.6 1016.2 1010.6 997.7 DAY 16 22 29 9 4 30 15 5 2 2 18 9 MEAN QFF PRESSURE IN HPA 1018.6 1019.3 1012.5 1009.4 1008.8 1000.6 994.8 999.2 1007.6 1012.8 1019.8 1020.3 1010.3 MAX. QFF PRESSURE IN HPA 1027.8 1029.2 1026.2 1019.4 1015.7 1004.7 999.2 1004.6 1014.4 1018.0 1030.0 1031.1 1031.1 DAY 19 7 11 12 6 7 8 28 15 8 7 28 MIN. QFF PRESSURE IN HPA 1008.6 1009.2 1002.7 1001.2 999.9 993.3 987.8 992.5 999.1 1006.8 1015.1 1011.2 987.8 DAY 15 22 24 9 4 30 15 5 2 2 18 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.1 6.1 11.5 19.0 23.7 30.9 32.8 31.4 26.2 18.1 13.2 7.6 18.6 MINIMUN AIR TEMPERATURE (C) -1.6 0.3 5.0 10.6 15.5 20.9 24.1 22.1 16.0 8.7 4.6 0.2 10.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 20 26 23 1 0 0 0 71 DAYS WITH MINIMUM TEMP. <=-4 9 3 0 0 0 0 0 0 0 0 0 1 13 DAYS WITH FREEZING MIN.<= 0 22 13 5 0 0 0 0 0 0 0 1 20 61 TEMPERATURE RECORDS LOWEST(C) -5.4 -7.0 -3.0 3.0 9.0 17.0 19.0 18.0 12.0 4.0 0.0 -4.0 -7.0 DAY 11 18 3 7 6 3 27 31 17 26 26 6 MAXIMUM AIR TEMPERATURE (C) 9.3 12.8 18.5 27.3 31.4 38.8 40.2 39.7 35.3 27.7 23.0 16.0 26.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 12 23 30 31 31 29 10 0 0 166 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 13.0 21.0 26.0 36.0 37.0 43.5 45.0 43.5 40.0 36.0 28.2 21.0 45.0 DAY 27 8 28 16 11 28 11 20 2 1 9 19 DIF. BETWEEN (MAX.-MIN.) (C) 10.9 12.5 13.5 16.7 15.9 17.9 16.1 17.6 19.3 19.0 18.4 15.8 16.1 MEAN DAILY TEMP. (MDT) (C) 3.9 6.5 11.8 19.0 23.4 29.9 32.1 30.9 25.6 18.2 13.8 8.1 18.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 20.8 92.3 266.2 345.6 306.8 139.2 16.8 0.0 0.0 1187.8 HEATING DEG. DAYS(BASE 18 0C) 437.7 320.6 194.6 30.6 2.3 0.0 0.0 0.0 0.0 38.1 125.3 305.5 1454.7 DEWPOINT (MEAN C) -2.7 -3.1 -0.2 3.5 5.6 4.4 7.8 8.5 4.9 2.5 -0.6 -1.2 2.4 MIXING RATIO (G/KG) 3.49 3.42 4.42 5.63 6.44 5.90 7.49 7.90 6.19 5.11 4.10 3.88 5.33 VAPOUR PRESSURE (HPA) 5.11 5.01 6.44 8.18 9.35 8.56 10.78 11.40 8.98 7.47 6.02 5.72 7.75 SATURATION DEF. (HPA) 2.79 4.93 8.14 15.31 21.70 38.02 40.86 36.75 27.08 15.30 10.29 5.30 18.87 RELATIVE HUMIDITY (MEAN %) 68 56 51 42 36 21 23 27 29 40 43 57 41 RELATIVE HUMIDITY (MAX. %) 85 79 73 68 61 37 38 44 46 60 62 77 61 RELATIVE HUMIDITY (MIN. %) 45 34 30 21 19 12 14 15 16 22 24 33 24 RELATIVE HUMIDITY (MEAN% 03UTC) 82 72 69 63 56 36 36 43 46 59 58 76 58 RELATIVE HUMIDITY (MEAN% 09UTC) 52 42 37 25 23 14 17 19 19 25 27 41 28 RELATIVE HUMIDITY (MEAN% 15UTC) 62 46 39 29 23 13 15 17 18 30 35 48 31 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 21.6 19.0 52.4 19.2 4.7 0.0 0.6 8.4 0.4 9.4 0.4 6.0 142.1 DAYS WITH PRECIPITATION >=10 1 0 2 0 0 0 0 0 0 0 0 0 3 DAYS WITH PRECIPITATION >= 5 1 1 5 2 0 0 0 1 0 1 0 1 12 DAYS WITH PRECIPITATION >= 1 6 7 8 5 3 0 0 3 0 2 0 1 35 DAYS WITH PRECIPITATION 8 8 9 6 7 0 2 3 1 2 1 1 48 GREATEST DAILY PRECIPITATION 10.0 7.0 18.0 7.0 2.0 0.0 0.4 5.0 0.4 5.0 0.4 6.0 18.0 DAY 5 12 1 5 4 ** 30 2 14 11 16 3 DAY WITH THUNDER STORM 0 0 0 3 4 0 1 0 1 1 0 0 10 DAYS WITH SNOW OR SLEET 4 3 2 0 0 0 0 0 0 0 0 0 9 DAYS WITH DUST 2 2 1 0 0 2 3 0 0 0 0 0 10 WIND DIRECTION (PREVAILING) 270 270 270 270 315 90 90 90 90 270 270 90 90 PREVAILING WIND SPEED(KNOTS) 8.0 9.9 8.7 8.4 10.5 9.5 10.0 8.5 6.9 5.5 6.2 5.8 8.3 PREVAILING WIND PERCENT 25.0 23.2 30.2 19.6 13.3 36.7 30.2 26.6 17.5 10.1 7.1 4.0 13.0 CALMS PERCENT OF WIND 62.9 51.3 41.9 52.9 48.8 48.8 39.1 59.7 64.6 67.7 78.8 88.3 58.8 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 286 289 286 288 328 88 80 89 74 7 296 64 344 VECTOR WIND MAGNITUDE(KNOTS) 2.6 2.8 3.3 3.1 1.4 4.0 2.9 2.7 0.9 0.5 0.4 0.1 0.5 WIND STEADINESES (MEAN %) 86.7 63.6 67.3 72.1 31.8 87.0 51.8 84.4 39.1 23.8 30.8 16.7 14.7 WIND SPEED (MEAN KNOTS) 3.0 4.4 4.9 4.3 4.4 4.6 5.6 3.2 2.3 2.1 1.3 0.6 3.4 FASTEST WIND DIRECTION 280 300 290 300 280 90 90 330 90 330 60 300 300 FASTEST WIND SPEED (KNOTS) 23 23 23 33 33 23 23 19 16 16 14 12 33 DAY 13 5 15 24 16 13 13 2 14 8 11 5 DAYS WITH SKY CLEAR (0-2)/8 14 12 13 13 17 29 27 23 26 27 20 15 236 DAYS WITH P.CLOUDY (3-6)/8 9 9 7 14 10 1 4 8 4 2 10 13 91 DAYS WITH CLOUDY (7-8)/8 8 7 11 3 4 0 0 0 0 2 0 3 38 DAYS WITH VISIBILITY =< 2 KM 3 1 1 0 1 0 0 0 0 0 0 0 6 DURATION OF SUNSHINE HOURS 176.4 171.2 217.1 266.2 312.3 372.9 360.3 345.6 308.5 286.6 223.5 178.3 3218.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 916.5 916.6 914.1 913.1 913.0 910.5 906.5 909.8 911.7 917.2 918.8 921.0 914.0 MAX. QFE PRESSURE IN HPA 925.8 931.1 921.4 923.8 921.8 917.5 916.4 915.7 918.6 925.8 926.9 928.5 931.1 DAY-HOUR 4- 6 23- 6 27- 6 12- 6 9- 6 17- 3 21- 6 25- 6 12- 6 10- 6 21- 6 29- 6 MIN. QFE PRESSURE IN HPA 904.8 904.6 902.0 904.6 903.8 903.5 897.9 903.5 904.4 907.0 911.5 913.0 897.9 DAY-HOUR 13- 0 8- 0 18-12 21-12 29-12 29-15 4-15 21-15 3-15 1-12 1-15 21-12 MEAN QNH PRESSURE IN HPA 1017.6 1017.7 1015.0 1013.9 1013.8 1011.1 1006.8 1010.3 1012.5 1018.4 1020.1 1022.5 1015.0 MAX. QNH PRESSURE IN HPA 1027.8 1033.5 1023.0 1025.6 1023.4 1018.7 1017.5 1016.8 1019.9 1027.8 1029.0 1030.7 1033.5 DAY-HOUR 4- 6 23- 6 27- 6 12- 6 9- 6 17- 3 21- 6 25- 6 12- 6 10- 6 21- 6 29- 6 MIN. QNH PRESSURE IN HPA 1004.9 1004.7 1001.9 1004.7 1003.8 1003.5 997.4 1003.5 1004.5 1007.3 1012.2 1013.8 997.4 DAY-HOUR 13- 0 8- 0 18-12 21-12 29-12 29-15 4-15 21-15 3-15 1-12 1-15 21-12 MEAN QFF PRESSURE IN HPA 1020.1 1019.0 1014.1 1010.3 1008.6 1003.4 998.4 1002.4 1006.3 1015.1 1018.7 1023.3 1011.6 MAX. QFF PRESSURE IN HPA 1031.5 1036.1 1024.2 1022.3 1020.8 1011.9 1009.9 1008.6 1014.6 1025.6 1027.9 1032.9 1036.1 DAY-HOUR 4- 6 23- 6 4- 6 7- 3 4- 6 17- 3 21- 6 9- 6 12- 6 10- 6 21- 6 29- 6 MIN. QFF PRESSURE IN HPA 1007.0 1002.9 1000.1 1000.0 997.8 995.6 989.5 995.6 998.1 1001.0 1009.4 1013.5 989.5 DAY-HOUR 13- 0 8- 0 18-12 17-12 21-12 29-15 5-15 21-15 3-15 1-12 1-12 31-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 916.4 916.6 914.1 913.4 913.1 910.7 906.6 909.7 911.9 917.0 918.7 921.0 914.1 MAX. QFE PRESSURE IN HPA 923.6 928.8 919.5 921.8 919.5 916.0 914.0 913.5 916.8 923.8 924.7 926.9 928.8 DAY 4 23 22 12 4 17 20 3 13 10 21 10 MIN. QFE PRESSURE IN HPA 904.8 904.6 904.0 906.2 906.6 906.0 900.0 906.0 906.4 909.7 913.0 914.3 900.0 DAY 13 8 30 22 21 29 8 22 5 1 11 21 MEAN QNH PRESSURE IN HPA 1017.5 1017.7 1015.0 1014.2 1013.9 1011.3 1006.8 1010.2 1012.7 1018.2 1020.1 1022.6 1015.0 MAX. QNH PRESSURE IN HPA 1025.4 1031.0 1020.9 1023.4 1020.9 1017.1 1014.9 1014.4 1018.0 1025.6 1026.6 1029.0 1031.0 DAY 4 23 22 12 4 17 20 3 13 10 21 10 MIN. QNH PRESSURE IN HPA 1004.9 1004.7 1004.0 1006.4 1006.9 1006.2 999.7 1006.2 1006.7 1010.2 1013.8 1015.3 999.7 DAY 13 8 30 22 21 29 8 22 5 1 11 21 MEAN QFF PRESSURE IN HPA 1019.5 1018.7 1013.9 1010.5 1008.6 1003.6 998.3 1002.1 1006.3 1014.6 1018.1 1022.8 1011.4 MAX. QFF PRESSURE IN HPA 1027.4 1032.7 1021.2 1020.5 1018.0 1010.0 1007.0 1006.3 1012.9 1023.0 1025.3 1029.1 1032.7 DAY 4 23 4 7 3 17 20 3 13 11 25 10 MIN. QFF PRESSURE IN HPA 1007.0 1002.9 1001.4 1002.9 1000.8 997.4 990.9 997.6 999.0 1004.0 1010.8 1015.6 990.9 DAY 13 8 30 22 21 29 8 22 5 1 11 21 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 916.7 916.7 914.8 914.1 914.2 912.2 908.0 911.2 913.1 917.9 919.3 921.3 914.9 MAX. QFE PRESSURE IN HPA 924.6 929.6 920.2 922.8 920.6 917.5 915.7 915.1 917.8 925.4 925.8 927.3 929.6 DAY 4 23 27 12 4 17 20 25 13 10 21 10 MIN. QFE PRESSURE IN HPA 905.4 904.8 905.4 907.4 907.0 907.0 901.0 907.2 908.0 910.2 914.3 913.9 901.0 DAY 13 8 15 22 30 29 8 17 3 1 11 21 MEAN QNH PRESSURE IN HPA 1017.8 1017.9 1015.8 1015.0 1015.2 1013.0 1008.4 1011.9 1013.9 1019.2 1020.7 1022.8 1016.0 MAX. QNH PRESSURE IN HPA 1026.5 1031.9 1021.7 1024.5 1022.1 1018.7 1016.8 1016.1 1019.1 1027.3 1027.8 1029.4 1031.9 DAY 4 23 27 12 4 17 20 25 13 10 21 10 MIN. QNH PRESSURE IN HPA 1005.6 1004.9 1005.6 1007.7 1007.3 1007.3 1000.8 1007.5 1008.4 1010.8 1015.3 1014.8 1000.8 DAY 13 8 15 22 30 29 8 17 3 1 11 21 MEAN QFF PRESSURE IN HPA 1020.6 1019.6 1015.4 1011.9 1010.2 1005.6 1000.3 1004.3 1008.4 1016.6 1019.9 1024.1 1013.1 MAX. QFF PRESSURE IN HPA 1029.7 1034.9 1023.2 1022.3 1019.5 1011.9 1009.7 1008.4 1014.4 1024.5 1027.3 1031.3 1034.9 DAY 4 23 4 7 4 17 21 8 13 10 21 10 MIN. QFF PRESSURE IN HPA 1008.4 1003.3 1003.5 1004.2 1002.2 999.3 992.2 999.2 1001.5 1005.2 1013.3 1015.9 992.2 DAY 13 8 15 22 21 29 8 17 5 1 11 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.9 918.0 915.8 914.8 914.9 912.7 908.7 912.1 914.1 919.2 920.6 922.6 916.0 MAX. QFE PRESSURE IN HPA 925.8 931.1 921.4 923.8 921.8 917.3 916.4 915.7 918.6 925.8 926.9 928.5 931.1 DAY 4 23 27 12 9 17 21 25 12 10 21 29 MIN. QFE PRESSURE IN HPA 905.9 907.4 906.8 908.1 907.0 908.4 901.7 909.0 908.8 912.2 916.0 915.6 901.7 DAY 13 8 15 24 30 29 5 21 3 1 1 21 MEAN QNH PRESSURE IN HPA 1019.2 1019.3 1016.9 1015.9 1015.9 1013.5 1009.2 1012.9 1015.0 1020.6 1022.1 1024.3 1017.1 MAX. QNH PRESSURE IN HPA 1027.8 1033.5 1023.0 1025.6 1023.4 1018.5 1017.5 1016.8 1019.9 1027.8 1029.0 1030.7 1033.5 DAY 4 23 27 12 9 17 21 25 12 10 21 29 MIN. QNH PRESSURE IN HPA 1006.1 1007.7 1007.1 1008.5 1007.3 1008.8 1001.5 1009.5 1009.3 1013.0 1017.1 1016.7 1001.5 DAY 13 8 15 24 30 29 5 21 3 1 1 21 MEAN QFF PRESSURE IN HPA 1022.0 1020.8 1016.3 1012.3 1010.7 1005.8 1000.8 1004.9 1008.9 1017.5 1021.1 1025.7 1013.9 MAX. QFF PRESSURE IN HPA 1031.5 1036.1 1024.2 1022.0 1020.8 1011.4 1009.9 1008.6 1014.6 1025.6 1027.9 1032.9 1036.1 DAY 4 23 4 7 4 17 21 9 12 10 21 29 MIN. QFF PRESSURE IN HPA 1009.2 1006.4 1004.8 1004.4 1001.6 1000.2 993.0 1000.6 1002.1 1006.8 1014.7 1018.4 993.0 DAY 13 8 15 22 30 29 5 21 3 1 1 21 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 916.8 916.8 914.5 913.4 913.5 911.1 907.2 910.6 912.4 917.6 919.0 921.1 914.5 MAX. QFE PRESSURE IN HPA 924.6 929.5 920.6 923.2 920.9 916.2 914.4 914.2 917.4 925.0 925.2 926.5 929.5 DAY 4 23 27 12 4 6 20 9 12 10 21 9 MIN. QFE PRESSURE IN HPA 905.9 906.0 905.8 906.4 906.0 906.4 900.0 907.2 907.0 909.0 913.7 914.2 900.0 DAY 13 8 15 22 21 29 5 23 3 1 1 21 MEAN QNH PRESSURE IN HPA 1017.9 1017.9 1015.5 1014.2 1014.4 1011.8 1007.6 1011.2 1013.1 1018.8 1020.3 1022.6 1015.5 MAX. QNH PRESSURE IN HPA 1026.5 1031.8 1022.1 1024.9 1022.4 1017.3 1015.4 1015.2 1018.6 1026.9 1027.1 1028.5 1031.8 DAY 4 23 27 12 4 6 20 9 12 10 21 9 MIN. QNH PRESSURE IN HPA 1006.1 1006.2 1006.0 1006.7 1006.2 1006.7 999.7 1007.5 1007.3 1009.5 1014.6 1015.2 999.7 DAY 13 8 15 22 21 29 5 23 3 1 1 21 MEAN QFF PRESSURE IN HPA 1020.1 1018.9 1014.4 1010.4 1009.0 1004.0 999.0 1003.1 1006.7 1015.2 1018.4 1022.9 1011.8 MAX. QFF PRESSURE IN HPA 1029.3 1033.6 1021.8 1020.3 1019.8 1009.4 1007.5 1007.5 1013.4 1025.2 1025.6 1029.8 1033.6 DAY 4 23 4 12 4 17 20 9 12 10 21 29 MIN. QFF PRESSURE IN HPA 1008.9 1004.5 1003.0 1002.2 999.7 997.9 991.2 999.2 999.9 1003.3 1011.1 1015.5 991.2 DAY 13 8 15 22 21 29 5 20 5 1 1 21 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 915.4 915.2 912.4 911.5 911.5 909.0 905.0 908.4 910.2 915.7 917.4 919.6 912.6 MAX. QFE PRESSURE IN HPA 922.4 927.1 918.6 922.0 917.5 913.6 912.4 912.0 915.6 923.6 923.9 926.5 927.1 DAY 4 23 27 12 4 6 20 25 12 10 21 29 MIN. QFE PRESSURE IN HPA 905.9 905.2 902.0 904.6 903.8 904.2 899.0 904.8 905.4 907.0 912.0 913.0 899.0 DAY 13 8 18 21 29 29 5 22 3 1 1 21 MEAN QNH PRESSURE IN HPA 1016.5 1016.2 1013.2 1012.2 1012.2 1009.5 1005.2 1008.8 1010.8 1016.8 1018.6 1021.0 1013.4 MAX. QNH PRESSURE IN HPA 1024.1 1029.2 1019.9 1023.6 1018.7 1014.5 1013.2 1012.8 1016.7 1025.4 1025.7 1028.5 1029.2 DAY 4 23 27 12 4 6 20 25 12 10 21 29 MIN. QNH PRESSURE IN HPA 1006.1 1005.4 1001.9 1004.7 1003.8 1004.3 998.6 1004.9 1005.6 1007.3 1012.8 1013.8 998.6 DAY 13 8 18 21 29 29 5 22 3 1 1 21 MEAN QFF PRESSURE IN HPA 1018.4 1017.1 1012.0 1008.4 1006.9 1001.9 996.7 1000.7 1004.4 1013.2 1016.7 1021.2 1009.8 MAX. QFF PRESSURE IN HPA 1026.3 1030.5 1019.6 1019.3 1015.6 1006.9 1005.6 1004.7 1011.3 1023.4 1023.7 1029.6 1030.5 DAY 4 23 4 12 4 17 20 8 12 10 21 29 MIN. QFF PRESSURE IN HPA 1009.0 1003.3 1000.1 1000.0 997.8 995.8 990.0 996.3 998.3 1001.0 1009.4 1013.5 990.0 DAY 13 8 18 17 21 29 5 17 3 1 1 31 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 916.1 915.8 912.7 911.5 911.1 908.3 904.5 907.8 909.7 915.8 917.8 920.4 912.6 MAX. QFE PRESSURE IN HPA 922.0 926.6 918.6 920.2 917.9 913.8 911.4 912.0 915.4 923.0 924.3 926.3 926.6 DAY 22 23 27 12 3 16 21 9 12 10 21 29 MIN. QFE PRESSURE IN HPA 907.4 906.9 902.4 904.6 903.8 903.5 897.9 903.5 904.4 908.0 911.5 914.4 897.9 DAY 12 13 18 23 29 29 4 21 3 1 1 31 MEAN QNH PRESSURE IN HPA 1017.2 1016.9 1013.5 1012.2 1011.8 1008.7 1004.6 1008.2 1010.3 1016.9 1019.1 1021.9 1013.4 MAX. QNH PRESSURE IN HPA 1023.6 1028.6 1019.9 1021.7 1019.2 1014.7 1012.1 1012.8 1016.5 1024.7 1026.1 1028.3 1028.6 DAY 22 23 27 12 3 16 21 9 12 10 21 29 MIN. QNH PRESSURE IN HPA 1007.7 1007.2 1002.3 1004.7 1003.8 1003.5 997.4 1003.5 1004.5 1008.4 1012.2 1015.4 997.4 DAY 12 13 18 23 29 29 4 21 3 1 1 31 MEAN QFF PRESSURE IN HPA 1019.9 1018.6 1013.0 1009.0 1006.8 1001.4 996.5 1000.6 1004.7 1014.3 1018.2 1023.1 1010.5 MAX. QFF PRESSURE IN HPA 1026.7 1031.3 1021.1 1018.0 1016.6 1008.1 1005.3 1005.5 1011.4 1023.6 1025.6 1029.9 1031.3 DAY 22 23 4 12 2 16 21 9 12 10 21 9 MIN. QFF PRESSURE IN HPA 1011.6 1006.4 1000.5 1001.2 998.0 995.6 989.5 995.6 998.1 1003.5 1010.2 1015.4 989.5 DAY 12 8 18 21 29 29 5 21 3 1 1 31 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 916.5 916.8 914.1 912.9 912.6 909.6 905.9 909.0 911.1 917.0 918.7 921.0 913.8 MAX. QFE PRESSURE IN HPA 923.0 928.1 919.8 921.4 919.2 915.4 912.4 912.0 916.4 923.6 924.5 926.7 928.1 DAY 22 22 28 11 3 16 20 2 12 10 21 9 MIN. QFE PRESSURE IN HPA 906.0 907.2 905.0 906.0 905.0 905.0 899.6 904.4 905.8 909.2 913.0 914.9 899.6 DAY 12 7 18 21 21 28 4 21 4 1 1 31 MEAN QNH PRESSURE IN HPA 1017.7 1018.0 1015.1 1013.8 1013.4 1010.1 1006.1 1009.5 1011.8 1018.2 1020.1 1022.5 1014.7 MAX. QNH PRESSURE IN HPA 1024.7 1030.3 1021.2 1023.0 1020.6 1016.5 1013.2 1012.8 1017.5 1025.4 1026.4 1028.8 1030.3 DAY 22 22 28 11 3 16 20 2 12 10 21 9 MIN. QNH PRESSURE IN HPA 1006.2 1007.5 1005.1 1006.2 1005.1 1005.1 999.3 1004.5 1006.0 1009.7 1013.8 1015.9 999.3 DAY 12 7 18 21 21 28 4 21 4 1 1 31 MEAN QFF PRESSURE IN HPA 1020.4 1019.5 1014.5 1010.2 1008.1 1002.4 997.7 1001.5 1005.7 1015.0 1019.1 1023.9 1011.5 MAX. QFF PRESSURE IN HPA 1028.0 1032.3 1022.2 1020.2 1018.3 1008.8 1005.4 1005.7 1012.2 1024.6 1026.0 1030.0 1032.3 DAY 22 22 4 6 3 16 20 2 12 10 24 9 MIN. QFF PRESSURE IN HPA 1009.4 1006.4 1004.2 1002.0 998.8 996.5 991.0 996.0 999.3 1004.7 1011.4 1015.6 991.0 DAY 12 7 18 21 21 28 5 21 4 1 10 31 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 916.4 916.8 914.2 913.1 913.1 910.1 906.4 909.5 911.5 917.2 918.8 921.0 914.0 MAX. QFE PRESSURE IN HPA 923.0 928.7 919.5 921.8 920.0 916.0 913.0 913.5 916.8 923.8 924.4 926.5 928.7 DAY 22 22 21 11 3 16 19 2 12 9 24 9 MIN. QFE PRESSURE IN HPA 905.0 906.0 905.6 906.2 906.0 905.4 900.0 905.0 906.4 910.0 913.0 914.2 900.0 DAY 12 7 14 21 21 28 7 21 4 1 10 31 MEAN QNH PRESSURE IN HPA 1017.6 1018.0 1015.2 1014.0 1013.9 1010.7 1006.6 1010.0 1012.2 1018.4 1020.2 1022.6 1014.9 MAX. QNH PRESSURE IN HPA 1024.7 1030.9 1020.9 1023.4 1021.5 1017.1 1013.8 1014.4 1018.0 1025.6 1026.3 1028.5 1030.9 DAY 22 22 21 11 3 16 19 2 12 9 24 9 MIN. QNH PRESSURE IN HPA 1005.1 1006.2 1005.8 1006.4 1006.2 1005.6 999.7 1005.1 1006.7 1010.6 1013.8 1015.2 999.7 DAY 12 7 14 21 21 28 7 21 4 1 10 31 MEAN QFF PRESSURE IN HPA 1019.7 1018.9 1013.9 1010.0 1008.4 1002.8 998.1 1001.9 1005.7 1014.7 1018.3 1022.8 1011.3 MAX. QFF PRESSURE IN HPA 1027.3 1032.3 1021.3 1020.3 1018.7 1009.5 1006.1 1006.7 1012.7 1024.7 1025.6 1028.4 1032.3 DAY 22 22 4 6 3 16 20 2 12 10 24 9 MIN. QFF PRESSURE IN HPA 1007.6 1004.0 1002.9 1001.6 999.4 996.4 991.0 996.5 999.3 1004.6 1010.8 1014.1 991.0 DAY 12 7 14 17 21 28 7 21 2 1 10 31 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.8 9.0 11.6 18.4 25.5 31.1 30.8 31.9 25.7 20.2 9.8 6.1 18.7 MINIMUN AIR TEMPERATURE (C) -0.4 1.5 4.1 9.4 15.2 20.5 21.6 21.4 15.6 11.2 4.2 0.4 10.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 15 19 20 1 0 0 0 56 DAYS WITH MINIMUM TEMP. <=-4 4 0 0 0 0 0 0 0 0 0 0 3 7 DAYS WITH FREEZING MIN.<= 0 17 12 2 0 0 0 0 0 0 0 1 18 50 TEMPERATURE RECORDS LOWEST(C) -10.0 -2.0 0.0 2.0 8.0 18.0 17.0 17.5 8.0 7.0 -3.5 -5.0 -10.0 DAY 4 1 7 11 22 7 16 28 29 22 30 1 MAXIMUM AIR TEMPERATURE (C) 11.1 17.2 18.6 26.7 34.3 39.5 38.7 40.5 35.1 29.4 16.8 13.2 26.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 5 30 30 31 31 26 19 0 0 172 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 17.0 22.5 26.0 32.0 41.5 42.0 44.0 42.2 39.2 35.0 23.5 20.5 44.0 DAY 31 28 26 30 31 1 4 1 3 6 19 29 DIF. BETWEEN (MAX.-MIN.) (C) 11.5 15.7 14.5 17.3 19.1 19.0 17.1 19.1 19.5 18.2 12.6 12.8 16.4 MEAN DAILY TEMP. (MDT) (C) 5.4 9.3 11.4 18.0 24.7 30.0 30.1 31.0 25.4 20.3 10.5 6.8 18.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 3.3 120.8 270.4 283.0 308.8 135.2 26.7 0.0 0.0 1148.2 HEATING DEG. DAYS(BASE 18 0C) 391.8 243.2 205.4 30.3 0.0 0.0 0.0 0.0 0.0 16.5 225.1 347.7 1460.1 DEWPOINT (MEAN C) -1.8 -1.7 -0.3 2.3 1.3 2.0 8.2 5.8 5.4 3.4 2.4 0.9 2.3 MIXING RATIO (G/KG) 3.80 3.82 4.27 5.26 4.75 4.99 7.77 6.54 6.36 5.46 5.20 4.59 5.23 VAPOUR PRESSURE (HPA) 5.57 5.58 6.22 7.66 6.90 7.22 11.18 9.46 9.21 7.96 7.61 6.75 7.61 SATURATION DEF. (HPA) 3.42 6.59 8.19 14.66 27.87 40.02 35.39 40.00 26.31 17.57 5.13 3.13 19.02 RELATIVE HUMIDITY (MEAN %) 66 53 50 38 24 18 27 22 30 36 64 72 42 RELATIVE HUMIDITY (MAX. %) 84 78 75 62 42 30 43 36 47 52 84 89 60 RELATIVE HUMIDITY (MIN. %) 43 27 28 20 12 9 16 12 18 24 42 48 25 RELATIVE HUMIDITY (MEAN% 03UTC) 80 74 71 58 40 29 42 35 45 50 78 86 57 RELATIVE HUMIDITY (MEAN% 09UTC) 50 34 35 24 15 12 20 15 21 28 46 56 30 RELATIVE HUMIDITY (MEAN% 15UTC) 59 40 35 26 14 10 17 13 22 31 60 65 33 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 41.6 14.7 19.7 8.2 0.0 0.0 2.5 0.0 0.0 1.9 60.5 14.5 163.6 DAYS WITH PRECIPITATION >=10 1 0 1 0 0 0 0 0 0 0 2 1 5 DAYS WITH PRECIPITATION >= 5 2 1 2 1 0 0 0 0 0 0 3 1 10 DAYS WITH PRECIPITATION >= 1 6 3 4 2 0 0 1 0 0 1 4 2 23 DAYS WITH PRECIPITATION 6 5 6 5 0 0 3 0 0 4 4 5 38 GREATEST DAILY PRECIPITATION 24.0 8.0 10.0 5.2 0.0 0.0 2.0 0.0 0.0 1.0 35.0 12.0 35.0 DAY 21 6 2 27 ** ** 14 ** ** 31 8 10 DAY WITH THUNDER STORM 0 0 0 2 0 0 0 0 0 1 0 0 3 DAYS WITH SNOW OR SLEET 1 1 0 0 0 0 0 0 0 0 1 1 4 DAYS WITH DUST 1 0 0 0 0 1 0 0 1 0 1 1 5 WIND DIRECTION (PREVAILING) 315 315 270 315 315 90 90 90 90 270 270 270 90 PREVAILING WIND SPEED(KNOTS) 8.7 10.6 8.4 9.6 12.2 9.1 10.1 9.0 10.0 8.1 7.8 7.4 9.0 PREVAILING WIND PERCENT 10.1 12.9 11.3 15.4 16.5 19.6 27.8 29.0 10.0 9.3 12.1 12.1 10.3 CALMS PERCENT OF WIND 75.8 67.9 66.5 49.6 51.2 43.3 52.0 58.5 69.2 68.1 70.8 77.0 62.5 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 302 295 293 301 305 12 84 90 75 304 291 286 331 VECTOR WIND MAGNITUDE(KNOTS) 1.2 1.8 1.5 1.9 2.5 0.6 3.3 2.9 0.6 1.1 1.3 0.9 0.7 WIND STEADINESES (MEAN %) 70.6 64.3 51.7 42.2 48.1 11.3 71.7 78.4 22.2 44.0 59.1 56.3 21.2 WIND SPEED (MEAN KNOTS) 1.7 2.8 2.9 4.5 5.2 5.3 4.6 3.7 2.7 2.5 2.2 1.6 3.3 FASTEST WIND DIRECTION 330 300 300 270 250 100 90 90 120 270 300 270 270 FASTEST WIND SPEED (KNOTS) 19 25 23 29 29 23 21 19 19 16 23 19 29 DAY 1 21 17 14 20 11 19 20 6 11 20 16 DAYS WITH SKY CLEAR (0-2)/8 17 19 13 15 26 27 29 27 29 23 11 16 252 DAYS WITH P.CLOUDY (3-6)/8 7 6 14 15 5 3 2 4 1 8 16 11 92 DAYS WITH CLOUDY (7-8)/8 7 3 4 0 0 0 0 0 0 0 3 4 21 DAYS WITH VISIBILITY =< 2 KM 2 1 0 0 0 0 0 0 0 0 4 3 10 DURATION OF SUNSHINE HOURS 187.8 234.0 215.5 268.8 349.4 361.4 367.6 352.6 316.1 274.1 194.6 184.5 3306.4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 918.8 915.1 913.7 913.4 911.4 907.4 906.5 909.0 910.9 915.8 918.5 922.4 913.6 MAX. QFE PRESSURE IN HPA 931.8 924.0 922.7 920.0 919.3 914.8 913.4 917.7 919.7 922.7 928.0 930.2 931.8 DAY-HOUR 2- 6 12- 6 19- 6 11- 6 28- 6 8- 6 19- 6 20- 6 29- 6 27- 6 30- 6 6- 6 MIN. QFE PRESSURE IN HPA 910.5 903.3 906.1 902.2 900.5 898.0 900.2 902.9 904.0 911.0 910.1 913.6 898.0 DAY-HOUR 9-12 20-15 26-12 8-12 20-12 25-12 22-15 13-15 15-15 31-12 1- 9 15-12 MEAN QNH PRESSURE IN HPA 1020.1 1016.1 1014.6 1014.3 1012.1 1007.8 1006.7 1009.4 1011.6 1016.9 1019.8 1024.1 1014.5 MAX. QNH PRESSURE IN HPA 1034.3 1025.8 1024.4 1021.5 1020.7 1015.8 1014.3 1019.0 1021.1 1024.4 1030.2 1032.6 1034.3 DAY-HOUR 2- 6 12- 6 19- 6 11- 6 28- 6 8- 6 19- 6 20- 6 29- 6 27- 6 30- 6 6- 6 MIN. QNH PRESSURE IN HPA 1011.1 1003.3 1006.3 1002.1 1000.2 997.5 999.9 1002.8 1004.0 1011.7 1010.7 1014.5 997.5 DAY-HOUR 9-12 20-15 26-12 8-12 20-12 25-12 22-15 13-15 15-15 31-12 1- 9 15-12 MEAN QFF PRESSURE IN HPA 1021.9 1016.2 1013.7 1010.9 1006.3 1000.1 998.9 1001.4 1005.5 1012.9 1019.5 1025.4 1011.1 MAX. QFF PRESSURE IN HPA 1036.8 1026.9 1026.2 1020.4 1014.8 1008.9 1006.6 1011.1 1017.2 1023.6 1033.6 1035.8 1036.8 DAY-HOUR 2- 6 12- 6 19- 6 11- 6 2- 6 17- 3 28- 3 20- 6 29- 6 27- 6 30- 6 6- 6 MIN. QFF PRESSURE IN HPA 1011.8 1001.9 1003.4 997.7 993.2 989.7 991.5 994.9 996.9 1006.7 1007.5 1014.4 989.7 DAY-HOUR 9-12 20-15 26-12 8-12 20-12 25-12 4-15 14-12 16-12 19-12 1- 9 16- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 918.9 915.2 913.7 913.8 911.9 907.9 906.9 909.1 911.0 915.9 918.3 922.5 913.7 MAX. QFE PRESSURE IN HPA 928.0 922.0 921.5 918.0 917.0 913.6 911.6 915.7 917.0 921.9 924.2 928.7 928.7 DAY 2 12 19 11 28 17 28 20 29 27 30 6 MIN. QFE PRESSURE IN HPA 912.2 904.8 907.8 907.3 905.5 899.3 902.1 904.8 905.0 913.6 911.0 913.8 899.3 DAY 10 21 22 14 20 25 23 14 16 19 26 16 MEAN QNH PRESSURE IN HPA 1020.2 1016.3 1014.6 1014.7 1012.6 1008.3 1007.2 1009.6 1011.6 1017.0 1019.6 1024.2 1014.7 MAX. QNH PRESSURE IN HPA 1030.2 1023.6 1023.1 1019.3 1018.2 1014.5 1012.3 1016.8 1018.2 1023.5 1026.0 1030.9 1030.9 DAY 2 12 19 11 28 17 28 20 29 27 30 6 MIN. QNH PRESSURE IN HPA 1013.0 1004.9 1008.2 1007.6 1005.7 998.9 1002.0 1004.9 1005.1 1014.5 1011.7 1014.7 998.9 DAY 10 21 22 14 20 25 23 14 16 19 26 16 MEAN QFF PRESSURE IN HPA 1021.6 1016.0 1013.5 1011.2 1006.7 1000.5 999.3 1001.4 1005.4 1012.7 1018.9 1025.2 1011.0 MAX. QFF PRESSURE IN HPA 1032.3 1024.0 1024.3 1018.0 1011.4 1007.7 1005.7 1008.6 1014.6 1022.2 1027.8 1032.8 1032.8 DAY 3 12 19 11 23 17 28 20 28 27 30 1 MIN. QFF PRESSURE IN HPA 1013.6 1004.3 1006.6 1003.4 998.7 991.3 993.6 996.0 997.7 1009.1 1009.5 1014.4 991.3 DAY 1 21 22 14 20 25 23 14 16 13 1 16 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 918.8 915.7 914.3 914.6 913.0 909.3 908.2 910.4 912.1 916.7 918.7 922.7 914.5 MAX. QFE PRESSURE IN HPA 929.8 922.5 921.8 919.0 918.0 914.7 912.7 916.5 918.0 921.8 926.4 928.9 929.8 DAY 2 12 19 11 28 17 19 20 29 27 30 6 MIN. QFE PRESSURE IN HPA 912.2 907.8 908.7 908.2 905.8 900.2 904.1 907.2 906.2 913.6 910.4 915.2 900.2 DAY 9 20 22 14 20 25 23 14 16 31 26 16 MEAN QNH PRESSURE IN HPA 1020.1 1016.8 1015.3 1015.6 1013.8 1009.8 1008.6 1011.0 1012.9 1017.9 1020.1 1024.4 1015.5 MAX. QNH PRESSURE IN HPA 1032.1 1024.2 1023.4 1020.4 1019.3 1015.7 1013.5 1017.7 1019.3 1023.4 1028.4 1031.2 1032.1 DAY 2 12 19 11 28 17 19 20 29 27 30 6 MIN. QNH PRESSURE IN HPA 1013.0 1008.2 1009.2 1008.6 1006.0 999.9 1004.2 1007.5 1006.4 1014.5 1011.0 1016.2 999.9 DAY 9 20 22 14 20 25 23 14 16 31 26 16 MEAN QFF PRESSURE IN HPA 1022.3 1017.4 1014.8 1012.8 1008.4 1002.3 1001.0 1003.4 1007.4 1014.5 1020.2 1026.1 1012.6 MAX. QFF PRESSURE IN HPA 1035.1 1025.4 1025.4 1019.8 1013.6 1008.9 1006.6 1010.2 1016.4 1022.7 1032.0 1034.6 1035.1 DAY 2 12 19 11 22 17 28 20 29 27 30 6 MIN. QFF PRESSURE IN HPA 1013.7 1006.3 1007.7 1005.3 999.2 992.4 996.3 1000.0 999.6 1009.8 1009.3 1016.7 992.4 DAY 9 20 22 14 20 25 4 14 16 13 1 16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 919.9 916.9 915.4 915.4 913.6 909.7 908.6 911.2 913.1 917.9 919.9 923.9 915.5 MAX. QFE PRESSURE IN HPA 931.8 924.0 922.7 920.0 919.3 914.8 913.4 917.7 919.7 922.7 928.0 930.2 931.8 DAY 2 12 19 11 28 8 19 20 29 27 30 6 MIN. QFE PRESSURE IN HPA 912.2 908.4 910.5 908.2 905.1 900.4 905.0 907.0 907.4 915.0 910.6 917.0 900.4 DAY 9 20 21 14 20 25 23 14 16 31 26 15 MEAN QNH PRESSURE IN HPA 1021.4 1018.1 1016.5 1016.5 1014.5 1010.3 1009.0 1011.9 1014.0 1019.2 1021.3 1025.7 1016.5 MAX. QNH PRESSURE IN HPA 1034.3 1025.8 1024.4 1021.5 1020.7 1015.8 1014.3 1019.0 1021.1 1024.4 1030.2 1032.6 1034.3 DAY 2 12 19 11 28 8 19 20 29 27 30 6 MIN. QNH PRESSURE IN HPA 1013.0 1008.8 1011.1 1008.6 1005.2 1000.1 1005.1 1007.3 1007.7 1016.0 1011.2 1018.2 1000.1 DAY 9 20 21 14 20 25 23 14 16 31 26 15 MEAN QFF PRESSURE IN HPA 1023.5 1018.6 1015.7 1013.1 1008.7 1002.6 1001.2 1003.8 1007.9 1015.2 1021.3 1027.5 1013.3 MAX. QFF PRESSURE IN HPA 1036.8 1026.9 1026.2 1020.4 1014.8 1008.8 1006.6 1011.1 1017.2 1023.6 1033.6 1035.8 1036.8 DAY 2 12 19 11 2 8 28 20 29 27 30 6 MIN. QFF PRESSURE IN HPA 1013.9 1007.0 1009.6 1003.9 998.3 991.7 996.5 999.1 1000.8 1011.3 1010.3 1018.9 991.7 DAY 9 20 22 14 20 25 23 14 16 13 1 14 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 919.1 915.7 914.3 913.8 912.0 908.0 907.1 909.7 911.5 916.2 918.5 922.6 914.0 MAX. QFE PRESSURE IN HPA 930.8 923.0 921.9 919.0 917.5 913.3 911.3 915.7 918.1 922.1 927.0 928.9 930.8 DAY 2 12 19 11 28 8 19 20 30 26 30 6 MIN. QFE PRESSURE IN HPA 910.7 906.7 908.9 905.5 902.7 898.9 903.7 905.5 906.1 913.0 910.1 914.4 898.9 DAY 9 20 21 8 20 25 22 14 16 31 1 15 MEAN QNH PRESSURE IN HPA 1020.5 1016.8 1015.3 1014.7 1012.7 1008.4 1007.4 1010.2 1012.3 1017.3 1019.9 1024.3 1015.0 MAX. QNH PRESSURE IN HPA 1033.2 1024.7 1023.5 1020.4 1018.7 1014.2 1012.0 1016.8 1019.4 1023.8 1029.1 1031.2 1033.2 DAY 2 12 19 11 28 8 19 20 30 26 30 6 MIN. QNH PRESSURE IN HPA 1011.3 1007.0 1009.4 1005.7 1002.6 998.5 1003.7 1005.7 1006.3 1013.8 1010.7 1015.4 998.5 DAY 9 20 21 8 20 25 22 14 16 31 1 15 MEAN QFF PRESSURE IN HPA 1021.9 1016.6 1014.1 1011.1 1006.8 1000.6 999.5 1002.0 1006.0 1013.0 1019.3 1025.3 1011.3 MAX. QFF PRESSURE IN HPA 1035.5 1025.4 1025.0 1018.6 1012.1 1007.3 1005.0 1008.9 1015.5 1022.3 1031.7 1033.4 1035.5 DAY 2 12 19 11 23 8 28 20 29 26 30 6 MIN. QFF PRESSURE IN HPA 1012.2 1004.8 1008.0 1001.4 995.5 990.8 995.0 996.8 999.2 1008.8 1007.5 1015.8 990.8 DAY 9 20 26 14 20 25 4 14 16 19 1 15 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 917.7 913.7 912.3 911.7 909.6 905.8 904.9 907.5 909.4 914.5 917.2 921.2 912.1 MAX. QFE PRESSURE IN HPA 929.0 920.9 918.9 917.0 915.1 910.7 908.9 913.0 916.2 920.3 925.6 927.3 929.0 DAY 2 12 19 11 28 8 28 20 30 26 30 6 MIN. QFE PRESSURE IN HPA 910.5 905.1 906.1 902.2 900.5 898.0 901.4 903.5 904.2 911.0 910.6 913.6 898.0 DAY 9 20 26 8 20 25 22 14 16 31 1 15 MEAN QNH PRESSURE IN HPA 1018.9 1014.6 1013.1 1012.4 1010.2 1006.0 1005.0 1007.9 1010.0 1015.4 1018.4 1022.8 1012.9 MAX. QNH PRESSURE IN HPA 1031.3 1022.4 1020.3 1018.2 1016.1 1011.3 1009.4 1013.8 1017.3 1021.8 1027.6 1029.4 1031.3 DAY 2 12 19 11 28 8 28 20 30 26 30 6 MIN. QNH PRESSURE IN HPA 1011.1 1005.2 1006.3 1002.1 1000.2 997.5 1001.2 1003.5 1004.3 1011.7 1011.2 1014.5 997.5 DAY 9 20 26 8 20 25 22 14 16 31 1 15 MEAN QFF PRESSURE IN HPA 1020.2 1014.4 1012.0 1008.8 1004.3 998.2 997.1 999.7 1003.7 1011.0 1017.8 1023.6 1009.2 MAX. QFF PRESSURE IN HPA 1033.9 1022.7 1021.7 1016.5 1009.9 1004.4 1002.5 1006.0 1012.8 1019.9 1030.2 1031.5 1033.9 DAY 2 12 19 11 23 8 28 20 30 26 30 6 MIN. QFF PRESSURE IN HPA 1011.8 1003.4 1003.4 997.7 993.2 989.7 992.3 994.9 996.9 1006.7 1009.2 1014.7 989.7 DAY 9 20 26 8 20 25 4 14 16 19 1 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 918.1 913.8 912.3 911.5 909.2 905.0 904.0 906.9 909.0 914.5 917.8 921.9 912.0 MAX. QFE PRESSURE IN HPA 929.4 921.0 919.8 916.0 914.2 909.8 908.3 912.8 916.1 920.8 926.4 927.7 929.4 DAY 2 12 18 11 28 8 28 20 30 26 30 5 MIN. QFE PRESSURE IN HPA 911.7 903.3 906.3 902.2 900.7 898.2 900.2 902.9 904.0 911.5 910.9 913.8 898.2 DAY 9 20 21 8 20 24 22 13 15 19 25 15 MEAN QNH PRESSURE IN HPA 1019.4 1014.8 1013.1 1012.2 1009.7 1005.1 1004.1 1007.2 1009.5 1015.4 1019.1 1023.5 1012.8 MAX. QNH PRESSURE IN HPA 1031.7 1022.6 1021.2 1017.1 1015.2 1010.4 1008.7 1013.6 1017.2 1022.3 1028.4 1029.8 1031.7 DAY 2 12 18 11 28 8 28 20 30 26 30 5 MIN. QNH PRESSURE IN HPA 1012.4 1003.3 1006.6 1002.1 1000.5 997.7 999.9 1002.8 1004.0 1012.2 1011.6 1014.7 997.7 DAY 9 20 21 8 20 24 22 13 15 19 25 15 MEAN QFF PRESSURE IN HPA 1021.6 1015.3 1012.6 1009.2 1004.2 997.7 996.5 999.6 1004.0 1012.0 1019.3 1025.1 1009.8 MAX. QFF PRESSURE IN HPA 1035.4 1023.6 1022.8 1016.0 1010.0 1004.2 1002.2 1006.5 1013.6 1021.1 1032.2 1032.6 1035.4 DAY 2 12 18 11 23 8 28 20 30 26 30 5 MIN. QFF PRESSURE IN HPA 1013.8 1001.9 1004.5 998.3 993.9 990.0 991.5 995.4 997.9 1008.2 1011.5 1015.7 990.0 DAY 9 20 26 8 20 24 4 13 15 19 25 15 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 919.0 914.7 913.5 913.2 911.0 906.6 905.7 908.3 910.3 915.5 918.6 922.5 913.2 MAX. QFE PRESSURE IN HPA 929.4 921.3 921.3 918.0 915.5 911.4 909.6 914.4 916.9 921.7 927.5 928.7 929.4 DAY 2 12 18 10 27 8 27 19 30 26 30 5 MIN. QFE PRESSURE IN HPA 912.2 903.9 907.3 905.9 904.1 899.1 901.8 903.7 904.5 912.5 911.4 913.8 899.1 DAY 9 20 21 8 19 24 22 13 15 31 25 15 MEAN QNH PRESSURE IN HPA 1020.3 1015.7 1014.4 1014.0 1011.6 1006.8 1005.9 1008.7 1010.9 1016.6 1020.0 1024.2 1014.1 MAX. QNH PRESSURE IN HPA 1031.7 1022.9 1022.9 1019.3 1016.6 1012.1 1010.1 1015.4 1018.1 1023.3 1029.6 1030.9 1031.7 DAY 2 12 18 10 27 8 27 19 30 26 30 5 MIN. QNH PRESSURE IN HPA 1013.0 1003.9 1007.6 1006.1 1004.2 998.7 1001.6 1003.7 1004.6 1013.3 1012.1 1014.7 998.7 DAY 9 20 21 8 19 24 22 13 15 31 25 15 MEAN QFF PRESSURE IN HPA 1022.5 1016.1 1013.5 1010.6 1005.8 999.1 998.1 1000.6 1004.9 1012.6 1020.0 1025.9 1010.8 MAX. QFF PRESSURE IN HPA 1034.8 1024.3 1024.1 1018.1 1010.7 1005.3 1003.9 1007.1 1013.7 1022.1 1033.5 1033.6 1034.8 DAY 2 12 18 10 23 16 15 19 30 26 30 5 MIN. QFF PRESSURE IN HPA 1014.4 1002.5 1006.2 1002.8 997.0 991.0 992.7 995.3 997.8 1009.0 1012.2 1015.6 991.0 DAY 9 20 21 13 19 24 3 13 15 12 25 15 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 919.0 914.9 913.7 913.5 911.4 907.2 906.6 908.7 910.9 915.7 918.7 922.4 913.5 MAX. QFE PRESSURE IN HPA 929.0 921.5 921.5 918.0 916.2 912.9 911.6 916.3 917.0 922.2 927.5 928.7 929.0 DAY 2 11 18 10 28 16 27 19 29 26 30 5 MIN. QFE PRESSURE IN HPA 912.8 904.2 907.3 907.3 904.9 898.7 902.1 904.1 905.0 912.5 911.4 913.8 898.7 DAY 9 20 21 13 19 24 22 13 15 31 25 15 MEAN QNH PRESSURE IN HPA 1020.4 1015.9 1014.6 1014.4 1012.1 1007.5 1006.8 1009.2 1011.5 1016.8 1020.1 1024.0 1014.4 MAX. QNH PRESSURE IN HPA 1031.3 1023.1 1023.1 1019.3 1017.3 1013.7 1012.3 1017.4 1018.2 1023.9 1029.6 1030.9 1031.3 DAY 2 11 18 10 28 16 27 19 29 26 30 5 MIN. QNH PRESSURE IN HPA 1013.6 1004.3 1007.6 1007.6 1005.0 998.3 1002.0 1004.2 1005.1 1013.3 1012.1 1014.7 998.3 DAY 9 20 21 13 19 24 22 13 15 31 25 15 MEAN QFF PRESSURE IN HPA 1021.9 1015.7 1013.4 1010.6 1006.1 999.7 999.0 1000.9 1005.3 1012.4 1019.6 1025.0 1010.8 MAX. QFF PRESSURE IN HPA 1034.5 1023.5 1023.8 1017.8 1011.0 1006.9 1005.7 1009.2 1014.7 1023.0 1032.9 1032.8 1034.5 DAY 2 12 18 10 22 16 27 19 29 26 30 5 MIN. QFF PRESSURE IN HPA 1014.5 1002.8 1006.5 1003.1 997.8 990.9 993.6 995.1 997.8 1008.4 1010.9 1014.6 990.9 DAY 9 20 21 13 19 24 3 13 15 12 25 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.8 6.3 11.4 21.3 26.5 29.4 31.9 31.0 26.5 16.9 9.8 5.7 18.4 MINIMUN AIR TEMPERATURE (C) -1.9 -0.7 3.3 12.0 16.9 19.0 22.5 20.9 16.7 9.2 4.3 2.0 10.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 2 8 20 16 0 0 0 0 46 DAYS WITH MINIMUM TEMP. <=-4 9 4 3 0 0 0 0 0 0 0 0 0 16 DAYS WITH FREEZING MIN.<= 0 24 20 9 0 0 0 0 0 0 0 4 12 69 TEMPERATURE RECORDS LOWEST(C) -8.0 -5.0 -4.5 6.0 12.0 14.0 16.0 17.0 12.0 4.0 -1.0 -3.0 -8.0 DAY 15 4 16 2 12 14 28 20 27 30 27 31 MAXIMUM AIR TEMPERATURE (C) 10.8 14.2 19.6 29.7 35.3 38.5 40.0 39.9 35.7 25.0 16.3 10.9 26.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 14 31 30 31 31 29 2 0 0 168 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.0 20.0 25.0 34.5 40.0 44.0 44.0 43.5 40.6 31.5 24.2 14.6 44.0 DAY 2 24 30 20 26 23 11 3 9 12 4 22 DIF. BETWEEN (MAX.-MIN.) (C) 12.7 14.9 16.3 17.7 18.4 19.5 17.5 19.0 19.0 15.8 12.0 8.9 16.0 MEAN DAILY TEMP. (MDT) (C) 4.4 6.8 11.4 20.8 26.1 28.7 31.2 30.4 26.2 17.1 10.3 6.4 18.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 23.1 157.0 232.0 317.3 291.9 155.7 0.5 0.0 0.0 1177.7 HEATING DEG. DAYS(BASE 18 0C) 420.1 325.4 204.3 4.8 0.0 0.0 0.0 0.0 0.0 43.2 232.3 358.6 1588.7 DEWPOINT (MEAN C) -3.9 -4.8 -4.9 0.9 0.3 3.2 7.1 8.6 5.6 5.2 2.7 2.7 1.9 MIXING RATIO (G/KG) 3.24 3.05 3.17 4.80 4.58 5.56 7.16 7.88 6.49 6.25 5.22 5.18 5.22 VAPOUR PRESSURE (HPA) 4.75 4.48 4.62 6.99 6.64 8.03 10.33 11.37 9.40 9.13 7.65 7.59 7.58 SATURATION DEF. (HPA) 3.71 5.69 9.92 19.73 29.95 35.79 39.34 35.98 27.38 11.22 4.99 1.78 18.79 RELATIVE HUMIDITY (MEAN %) 61 50 36 30 21 21 23 27 30 51 65 83 42 RELATIVE HUMIDITY (MAX. %) 81 73 58 52 36 35 37 42 48 72 86 94 60 RELATIVE HUMIDITY (MIN. %) 37 26 18 15 10 12 14 17 16 31 41 64 25 RELATIVE HUMIDITY (MEAN% 03UTC) 78 70 55 49 34 34 36 41 46 69 82 91 57 RELATIVE HUMIDITY (MEAN% 09UTC) 43 33 23 18 13 15 16 19 19 37 48 73 30 RELATIVE HUMIDITY (MEAN% 15UTC) 53 38 26 20 12 13 15 19 19 42 55 79 33 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 31.8 7.1 2.2 10.8 0.2 0.0 0.0 0.0 3.0 19.0 18.3 82.7 175.1 DAYS WITH PRECIPITATION >=10 1 0 0 1 0 0 0 0 0 0 1 3 6 DAYS WITH PRECIPITATION >= 5 2 1 0 1 0 0 0 0 0 2 1 5 12 DAYS WITH PRECIPITATION >= 1 3 1 1 1 0 0 0 0 1 4 4 7 22 DAYS WITH PRECIPITATION 5 4 4 3 1 0 0 0 1 4 7 9 38 GREATEST DAILY PRECIPITATION 25.0 6.0 2.1 10.4 0.2 0.0 0.0 0.0 3.0 7.7 11.0 28.0 28.0 DAY 28 14 23 21 7 ** ** ** 30 17 6 1 DAY WITH THUNDER STORM 0 0 0 1 0 0 0 0 1 0 0 0 2 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 0 0 2 2 3 2 0 0 0 0 0 1 10 WIND DIRECTION (PREVAILING) 270 270 270 270 270 90 90 90 90 270 90 270 270 PREVAILING WIND SPEED(KNOTS) 8.9 8.5 11.4 10.4 8.6 8.4 9.2 8.3 8.2 6.1 5.6 6.8 8.8 PREVAILING WIND PERCENT 17.7 22.0 21.8 26.7 27.0 23.3 32.3 23.4 16.3 7.7 7.9 14.1 13.0 CALMS PERCENT OF WIND 67.3 51.7 48.0 39.6 33.5 52.9 50.4 56.5 65.4 73.8 78.8 77.0 57.9 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 278 286 283 285 291 69 93 92 82 357 65 280 307 VECTOR WIND MAGNITUDE(KNOTS) 1.7 3.1 2.7 4.3 3.8 1.8 3.9 2.6 1.1 0.1 0.2 1.0 0.7 WIND STEADINESES (MEAN %) 63.0 73.8 51.9 72.9 64.4 41.9 92.9 76.5 44.0 6.7 18.2 71.4 20.0 WIND SPEED (MEAN KNOTS) 2.7 4.2 5.2 5.9 5.9 4.3 4.2 3.4 2.5 1.5 1.1 1.4 3.5 FASTEST WIND DIRECTION 280 310 310 250 270 320 90 90 90 290 90 270 250 FASTEST WIND SPEED (KNOTS) 27 19 29 49 33 29 23 17 17 17 14 23 49 DAY 21 7 2 21 9 12 6 9 5 28 17 16 DAYS WITH SKY CLEAR (0-2)/8 18 21 24 16 27 30 28 26 26 20 13 11 260 DAYS WITH P.CLOUDY (3-6)/8 10 8 4 12 4 0 3 5 4 8 11 11 80 DAYS WITH CLOUDY (7-8)/8 3 0 3 2 0 0 0 0 0 3 6 9 26 DAYS WITH VISIBILITY =< 2 KM 0 0 0 1 2 1 0 0 0 1 0 12 17 DURATION OF SUNSHINE HOURS 197.3 250.3 279.3 255.3 341.4 367.7 364.3 339.2 290.7 247.3 178.5 128.9 3240.2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 916.9 916.8 914.2 912.8 909.5 907.5 908.2 908.8 910.8 917.3 920.6 919.1 913.5 MAX. QFE PRESSURE IN HPA 925.4 925.6 922.6 920.0 915.5 915.5 917.0 916.0 919.0 924.6 931.2 927.0 931.2 DAY-HOUR 31- 6 10-21 27- 6 2- 6 5- 6 14- 3 30- 6 23- 6 29-18 16- 6 17- 6 4- 6 MIN. QFE PRESSURE IN HPA 905.2 905.3 904.6 907.5 901.5 899.0 899.0 900.5 902.2 910.7 913.9 910.8 899.0 DAY-HOUR 21-12 7- 3 24-15 10-12 26-15 24-15 11-15 30-15 1-12 1-12 21-12 15- 9 MEAN QNH PRESSURE IN HPA 1018.1 1018.0 1015.1 1013.6 1010.0 1007.8 1008.6 1009.3 1011.4 1018.5 1022.1 1020.4 1014.4 MAX. QNH PRESSURE IN HPA 1027.3 1027.6 1024.3 1021.5 1016.6 1016.6 1018.2 1017.1 1020.4 1026.5 1033.7 1029.1 1033.7 DAY-HOUR 31- 6 10-21 27- 6 2- 6 5- 6 14- 3 30- 6 23- 6 29-18 16- 6 17- 6 4- 6 MIN. QNH PRESSURE IN HPA 1005.4 1005.5 1004.7 1007.9 1001.3 998.6 998.6 1000.2 1002.1 1011.3 1014.8 1011.5 998.6 DAY-HOUR 21-12 7- 3 24-15 10-12 26-15 24-15 11-15 30-15 1-12 1-12 21-12 15- 9 MEAN QFF PRESSURE IN HPA 1020.2 1019.2 1014.4 1009.3 1003.9 1000.7 1000.5 1001.5 1005.2 1015.6 1021.9 1021.8 1011.2 MAX. QFF PRESSURE IN HPA 1031.2 1031.0 1024.5 1019.0 1010.2 1011.8 1010.4 1009.1 1014.9 1025.1 1035.1 1031.0 1035.1 DAY-HOUR 31- 6 11- 6 16- 6 2- 6 11- 6 14- 3 31- 3 23- 6 29-18 16- 6 17- 6 4- 6 MIN. QFF PRESSURE IN HPA 1005.6 1006.5 1001.8 1003.1 994.3 991.2 989.1 992.9 994.9 1006.9 1013.9 1012.3 989.1 DAY-HOUR 21-12 7- 3 24-15 10-12 26-15 24-15 11-15 30-15 1-12 1-12 2-12 15-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 917.1 916.9 914.4 912.9 909.9 907.9 908.2 909.1 910.8 917.2 920.4 919.0 913.6 MAX. QFE PRESSURE IN HPA 925.0 925.6 920.6 917.5 914.0 914.3 916.0 913.4 916.8 922.6 928.6 924.4 928.6 DAY 31 11 1 2 7 14 31 21 30 16 17 4 MIN. QFE PRESSURE IN HPA 909.0 905.7 906.8 909.4 904.7 902.6 901.7 902.0 903.0 912.1 915.2 911.7 901.7 DAY 21 7 25 21 20 24 12 31 1 1 22 15 MEAN QNH PRESSURE IN HPA 1018.3 1018.1 1015.4 1013.7 1010.5 1008.3 1008.6 1009.6 1011.5 1018.4 1021.9 1020.3 1014.5 MAX. QNH PRESSURE IN HPA 1026.9 1027.6 1022.1 1018.7 1014.9 1015.3 1017.1 1014.3 1018.0 1024.3 1030.8 1026.3 1030.8 DAY 31 11 1 2 7 14 31 21 30 16 17 4 MIN. QNH PRESSURE IN HPA 1009.5 1005.9 1007.1 1009.9 1004.8 1002.5 1001.5 1001.9 1003.0 1012.9 1016.2 1012.4 1001.5 DAY 21 7 25 21 20 24 12 31 1 1 22 15 MEAN QFF PRESSURE IN HPA 1019.9 1018.9 1014.4 1009.3 1004.3 1001.1 1000.4 1001.6 1004.9 1015.2 1021.3 1021.3 1011.1 MAX. QFF PRESSURE IN HPA 1028.8 1029.7 1022.8 1016.1 1008.9 1010.5 1009.9 1007.4 1013.1 1022.9 1031.7 1027.0 1031.7 DAY 31 11 1 2 3 14 31 21 30 16 17 4 MIN. QFF PRESSURE IN HPA 1010.6 1006.6 1004.0 1003.8 998.0 994.6 991.8 994.1 995.5 1008.9 1015.3 1013.2 991.8 DAY 21 7 25 21 20 24 12 31 1 1 22 15 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 917.2 917.2 915.1 913.8 911.0 909.2 909.7 910.5 912.0 917.9 920.8 919.0 914.5 MAX. QFE PRESSURE IN HPA 924.7 925.0 921.5 918.4 914.0 915.5 916.5 914.7 916.9 923.1 930.2 925.3 930.2 DAY 31 11 27 2 5 14 31 23 26 16 17 4 MIN. QFE PRESSURE IN HPA 907.9 905.3 908.5 910.0 906.3 903.5 902.0 903.7 904.0 913.4 915.3 911.2 902.0 DAY 21 7 24 10 20 24 11 31 1 1 22 15 MEAN QNH PRESSURE IN HPA 1018.4 1018.4 1016.2 1014.7 1011.7 1009.7 1010.3 1011.2 1012.8 1019.2 1022.3 1020.4 1015.4 MAX. QNH PRESSURE IN HPA 1026.6 1026.9 1023.1 1019.7 1014.9 1016.6 1017.7 1015.7 1018.1 1024.8 1032.6 1027.2 1032.6 DAY 31 11 27 2 5 14 31 23 26 16 17 4 MIN. QNH PRESSURE IN HPA 1008.3 1005.5 1008.9 1010.6 1006.6 1003.5 1001.9 1003.7 1004.0 1014.3 1016.3 1011.9 1001.9 DAY 21 7 24 10 20 24 11 31 1 1 22 15 MEAN QFF PRESSURE IN HPA 1021.0 1020.1 1016.0 1010.9 1005.8 1002.8 1002.5 1003.8 1007.0 1016.8 1022.5 1022.0 1012.6 MAX. QFF PRESSURE IN HPA 1030.1 1029.9 1024.4 1017.9 1010.0 1011.8 1010.4 1008.5 1013.6 1023.6 1034.0 1028.6 1034.0 DAY 31 11 16 2 11 14 31 20 26 16 17 4 MIN. QFF PRESSURE IN HPA 1010.4 1006.5 1006.8 1005.1 1000.0 996.1 992.8 996.8 997.3 1010.3 1016.5 1012.9 992.8 DAY 21 7 24 21 20 24 11 31 1 1 22 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 918.4 918.3 916.3 914.8 911.7 909.7 910.4 911.3 913.0 919.0 922.0 920.2 915.4 MAX. QFE PRESSURE IN HPA 925.4 925.5 922.6 920.0 915.5 915.5 917.0 916.0 918.2 924.6 931.2 927.0 931.2 DAY 31 11 27 2 5 16 30 23 29 16 17 4 MIN. QFE PRESSURE IN HPA 908.5 907.3 907.7 909.8 907.0 903.5 902.9 905.0 905.4 914.0 916.9 912.1 902.9 DAY 21 7 24 10 26 24 11 31 1 1 22 15 MEAN QNH PRESSURE IN HPA 1019.7 1019.6 1017.4 1015.8 1012.4 1010.3 1011.0 1012.0 1013.9 1020.4 1023.7 1021.6 1016.5 MAX. QNH PRESSURE IN HPA 1027.3 1027.5 1024.3 1021.5 1016.6 1016.6 1018.2 1017.1 1019.5 1026.5 1033.7 1029.1 1033.7 DAY 31 11 27 2 5 16 30 23 29 16 17 4 MIN. QNH PRESSURE IN HPA 1008.9 1007.6 1008.1 1010.4 1007.3 1003.5 1002.8 1005.1 1005.6 1014.9 1018.1 1012.9 1002.8 DAY 21 7 24 10 26 24 11 31 1 1 22 15 MEAN QFF PRESSURE IN HPA 1022.2 1021.3 1016.8 1011.4 1006.1 1003.1 1002.8 1004.2 1007.5 1017.6 1023.7 1023.3 1013.3 MAX. QFF PRESSURE IN HPA 1031.2 1031.0 1024.5 1019.0 1010.2 1011.4 1010.2 1009.1 1013.8 1025.1 1035.1 1031.0 1035.1 DAY 31 11 16 2 11 14 31 23 30 16 17 4 MIN. QFF PRESSURE IN HPA 1011.4 1008.9 1005.8 1005.7 1000.0 995.3 993.7 997.7 997.9 1010.3 1017.4 1014.0 993.7 DAY 21 7 24 10 26 24 11 31 1 1 3 15 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 917.0 917.2 914.8 913.3 909.9 908.2 909.0 909.7 911.4 917.6 920.8 919.1 914.0 MAX. QFE PRESSURE IN HPA 924.4 924.0 920.7 918.6 914.1 914.3 915.7 913.8 917.8 923.6 929.8 926.0 929.8 DAY 31 11 27 2 5 16 30 20 29 16 17 4 MIN. QFE PRESSURE IN HPA 907.0 907.3 905.7 908.3 905.3 902.0 901.5 904.0 903.8 912.4 915.6 910.8 901.5 DAY 21 7 24 10 26 24 11 31 1 1 21 15 MEAN QNH PRESSURE IN HPA 1018.2 1018.4 1015.8 1014.2 1010.5 1008.6 1009.5 1010.2 1012.1 1018.8 1022.4 1020.5 1014.9 MAX. QNH PRESSURE IN HPA 1026.3 1025.8 1022.2 1019.9 1015.0 1015.3 1016.8 1014.7 1019.1 1025.4 1032.1 1028.0 1032.1 DAY 31 11 27 2 5 16 30 20 29 16 17 4 MIN. QNH PRESSURE IN HPA 1007.3 1007.6 1005.9 1008.7 1005.5 1001.9 1001.3 1004.0 1003.8 1013.2 1016.7 1011.5 1001.3 DAY 21 7 24 10 26 24 11 31 1 1 21 15 MEAN QFF PRESSURE IN HPA 1020.1 1019.4 1014.8 1009.5 1004.2 1001.4 1001.3 1002.3 1005.5 1015.6 1021.9 1021.6 1011.5 MAX. QFF PRESSURE IN HPA 1028.9 1028.1 1022.5 1017.2 1008.7 1009.4 1008.8 1007.3 1013.4 1023.8 1033.3 1029.5 1033.3 DAY 31 10 16 2 11 16 30 20 29 16 17 4 MIN. QFF PRESSURE IN HPA 1008.0 1009.3 1003.4 1003.2 998.2 993.5 991.9 996.3 996.2 1008.5 1015.4 1012.5 991.9 DAY 21 7 24 10 26 24 11 31 1 1 3 15 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 915.6 915.4 912.5 911.2 907.9 906.0 906.9 907.4 909.2 916.0 919.5 918.2 912.1 MAX. QFE PRESSURE IN HPA 923.1 922.7 917.8 916.0 912.0 911.8 914.0 911.8 917.2 922.8 927.9 924.5 927.9 DAY 30 10 3 2 5 16 30 20 29 16 17 4 MIN. QFE PRESSURE IN HPA 905.2 907.2 905.0 907.5 902.7 899.8 899.5 901.5 902.2 910.7 913.9 910.8 899.5 DAY 21 7 24 10 26 24 11 30 1 1 21 15 MEAN QNH PRESSURE IN HPA 1016.6 1016.5 1013.3 1011.9 1008.3 1006.3 1007.2 1007.7 1009.7 1017.1 1021.0 1019.5 1012.9 MAX. QNH PRESSURE IN HPA 1024.8 1024.4 1019.1 1017.1 1012.8 1012.5 1014.9 1012.5 1018.4 1024.5 1030.1 1026.4 1030.1 DAY 30 10 3 2 5 16 30 20 29 16 17 4 MIN. QNH PRESSURE IN HPA 1005.4 1007.5 1005.1 1007.9 1002.6 999.5 999.1 1001.3 1002.1 1011.3 1014.8 1011.5 999.1 DAY 21 7 24 10 26 24 11 30 1 1 21 15 MEAN QFF PRESSURE IN HPA 1018.3 1017.3 1012.2 1007.5 1002.1 999.0 999.0 999.8 1003.2 1013.9 1020.5 1020.5 1009.4 MAX. QFF PRESSURE IN HPA 1026.7 1026.6 1019.9 1014.4 1006.5 1006.5 1007.4 1005.3 1013.0 1022.8 1031.2 1027.5 1031.2 DAY 30 10 3 2 7 13 30 20 29 16 17 4 MIN. QFF PRESSURE IN HPA 1005.6 1009.0 1002.1 1003.1 995.3 991.8 989.5 993.6 994.9 1006.9 1013.9 1012.3 989.5 DAY 21 7 24 10 26 24 11 30 1 1 2 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 916.1 915.7 912.6 911.1 907.3 905.2 906.2 906.6 908.8 916.2 920.0 918.9 912.1 MAX. QFE PRESSURE IN HPA 923.7 923.2 918.9 915.1 911.5 910.9 913.5 911.5 917.9 922.5 927.8 925.0 927.8 DAY 30 10 3 4 7 16 30 20 29 16 17 4 MIN. QFE PRESSURE IN HPA 905.6 908.8 904.6 908.2 901.5 899.0 899.0 900.5 902.2 911.3 914.6 911.8 899.0 DAY 21 6 24 22 26 24 11 30 1 12 21 15 MEAN QNH PRESSURE IN HPA 1017.2 1016.8 1013.4 1011.7 1007.6 1005.4 1006.4 1006.9 1009.3 1017.3 1021.5 1020.2 1012.8 MAX. QNH PRESSURE IN HPA 1025.5 1024.9 1020.3 1016.1 1012.2 1011.6 1014.4 1012.2 1019.2 1024.2 1030.0 1026.9 1030.0 DAY 30 10 3 4 7 16 30 20 29 16 17 4 MIN. QNH PRESSURE IN HPA 1005.8 1009.3 1004.7 1008.6 1001.3 998.6 998.6 1000.2 1002.1 1012.0 1015.6 1012.5 998.6 DAY 21 6 24 22 26 24 11 30 1 12 21 15 MEAN QFF PRESSURE IN HPA 1019.7 1018.5 1013.1 1007.9 1001.7 998.4 998.6 999.4 1003.6 1015.0 1021.7 1021.7 1009.9 MAX. QFF PRESSURE IN HPA 1028.3 1028.0 1021.6 1013.9 1006.8 1006.0 1007.6 1005.7 1014.3 1022.6 1031.7 1028.3 1031.7 DAY 30 10 3 1 2 13 30 20 29 16 17 4 MIN. QFF PRESSURE IN HPA 1007.1 1010.1 1001.8 1004.0 994.3 991.2 989.1 992.9 995.5 1008.3 1015.0 1013.6 989.1 DAY 21 25 24 20 26 24 11 30 1 12 1 15 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 916.9 916.8 913.8 912.7 908.9 906.5 907.4 907.8 910.4 917.1 920.6 919.3 913.2 MAX. QFE PRESSURE IN HPA 925.3 924.5 920.1 917.2 913.0 912.6 914.0 913.0 919.0 922.9 928.2 925.0 928.2 DAY 30 10 3 4 7 16 30 20 29 15 16 4 MIN. QFE PRESSURE IN HPA 907.3 907.7 904.7 910.1 903.2 901.7 900.2 902.0 903.2 913.1 915.2 912.3 900.2 DAY 21 6 24 6 26 24 11 30 1 1 21 15 MEAN QNH PRESSURE IN HPA 1018.1 1018.0 1014.7 1013.5 1009.4 1006.8 1007.7 1008.1 1011.0 1018.3 1022.2 1020.6 1014.0 MAX. QNH PRESSURE IN HPA 1027.2 1026.4 1021.6 1018.4 1013.8 1013.4 1014.9 1013.8 1020.4 1024.6 1030.4 1026.9 1030.4 DAY 30 10 3 4 7 16 30 20 29 15 16 4 MIN. QNH PRESSURE IN HPA 1007.6 1008.1 1004.8 1010.7 1003.2 1001.5 999.9 1001.9 1003.2 1014.0 1016.2 1013.1 999.9 DAY 21 6 24 6 26 24 11 30 1 1 21 15 MEAN QFF PRESSURE IN HPA 1020.6 1019.6 1014.0 1009.0 1003.1 999.5 999.4 1000.2 1004.7 1015.5 1022.2 1022.3 1010.8 MAX. QFF PRESSURE IN HPA 1030.4 1029.7 1022.6 1015.7 1008.1 1008.9 1007.2 1006.5 1014.9 1023.3 1031.0 1028.3 1031.0 DAY 30 10 3 1 2 13 30 20 29 15 16 4 MIN. QFF PRESSURE IN HPA 1008.8 1010.2 1001.9 1004.8 995.4 993.7 990.3 993.9 996.0 1009.8 1015.7 1014.7 990.3 DAY 21 6 24 30 26 24 11 30 1 1 2 15 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 916.9 917.0 914.1 912.9 909.6 907.3 907.9 908.3 910.9 917.3 920.7 919.0 913.5 MAX. QFE PRESSURE IN HPA 925.3 925.6 920.1 917.5 914.0 914.0 915.0 912.7 917.5 922.6 928.6 924.3 928.6 DAY 30 10 3 1 6 13 30 20 29 15 16 4 MIN. QFE PRESSURE IN HPA 909.5 906.9 905.2 909.9 904.7 902.6 900.8 902.0 904.0 913.1 915.2 912.5 900.8 DAY 20 6 24 9 19 23 11 30 1 13 21 15 MEAN QNH PRESSURE IN HPA 1018.1 1018.2 1015.1 1013.7 1010.1 1007.6 1008.3 1008.7 1011.5 1018.5 1022.2 1020.3 1014.4 MAX. QNH PRESSURE IN HPA 1027.2 1027.6 1021.6 1018.7 1014.9 1014.9 1016.0 1013.5 1018.7 1024.3 1030.8 1026.1 1030.8 DAY 30 10 3 1 6 13 30 20 29 15 16 4 MIN. QNH PRESSURE IN HPA 1010.0 1007.2 1005.4 1010.5 1004.8 1002.5 1000.6 1001.9 1004.0 1014.0 1016.2 1013.3 1000.6 DAY 20 6 24 9 19 23 11 30 1 13 21 15 MEAN QFF PRESSURE IN HPA 1020.0 1019.1 1014.0 1008.9 1003.8 1000.3 1000.2 1000.8 1004.9 1015.3 1021.8 1021.5 1010.9 MAX. QFF PRESSURE IN HPA 1029.4 1030.0 1022.4 1015.8 1008.3 1010.3 1008.4 1005.8 1013.6 1023.0 1031.6 1027.4 1031.6 DAY 30 10 3 1 2 13 30 20 29 4 16 4 MIN. QFF PRESSURE IN HPA 1010.1 1008.6 1002.1 1004.4 997.3 994.2 990.6 994.1 996.7 1009.4 1014.5 1014.9 990.6 DAY 21 6 24 20 26 23 11 30 1 13 2 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.6 6.8 14.1 21.0 24.9 29.6 31.7 30.9 26.2 19.3 11.1 7.4 18.9 MINIMUN AIR TEMPERATURE (C) -1.9 0.2 6.0 12.1 15.8 19.6 23.1 20.6 16.9 11.1 4.0 2.7 10.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 12 28 15 0 0 0 0 56 DAYS WITH MINIMUM TEMP. <=-4 5 1 0 0 0 0 0 0 0 0 2 0 8 DAYS WITH FREEZING MIN.<= 0 25 12 2 0 0 0 0 0 0 0 5 8 52 TEMPERATURE RECORDS LOWEST(C) -10.0 -5.0 -1.4 7.0 12.0 14.5 18.0 16.0 13.0 6.0 -4.4 -3.5 -10.0 DAY 29 1 12 14 5 13 31 1 16 30 21 22 MAXIMUM AIR TEMPERATURE (C) 10.4 14.4 22.4 29.8 33.1 38.2 39.3 40.1 35.0 28.2 19.4 13.4 27.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 19 24 29 31 31 26 10 0 0 171 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.6 22.6 30.0 34.0 39.0 44.0 44.5 43.5 39.0 33.0 27.5 20.5 44.5 DAY 15 28 31 26 15 27 9 3 4 7 6 31 DIF. BETWEEN (MAX.-MIN.) (C) 12.3 14.2 16.4 17.7 17.3 18.6 16.2 19.5 18.1 17.1 15.4 10.7 16.1 MEAN DAILY TEMP. (MDT) (C) 4.3 7.3 14.2 20.9 24.4 28.9 31.2 30.3 25.9 19.6 11.7 8.0 18.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 24.6 113.8 238.0 317.4 288.5 149.4 9.3 0.0 0.0 1141.2 HEATING DEG. DAYS(BASE 18 0C) 425.6 298.4 123.7 2.0 0.0 0.0 0.0 0.0 0.0 12.1 188.9 308.5 1359.3 DEWPOINT (MEAN C) -2.1 -1.4 1.4 3.8 5.0 9.6 9.4 10.2 3.9 4.5 -0.3 3.2 3.9 MIXING RATIO (G/KG) 3.65 3.84 4.77 5.61 6.27 8.65 8.36 9.26 5.76 5.96 4.28 5.37 5.98 VAPOUR PRESSURE (HPA) 5.37 5.63 6.95 8.15 9.08 12.43 12.01 13.30 8.37 8.68 6.26 7.88 8.68 SATURATION DEF. (HPA) 3.03 4.80 10.38 18.27 24.42 31.88 36.68 34.24 27.80 15.20 8.03 2.79 18.13 RELATIVE HUMIDITY (MEAN %) 70 61 47 35 33 33 28 30 26 41 50 77 44 RELATIVE HUMIDITY (MAX. %) 88 83 73 56 53 52 44 45 43 59 73 92 63 RELATIVE HUMIDITY (MIN. %) 48 34 25 20 17 20 16 19 15 26 27 55 27 RELATIVE HUMIDITY (MEAN% 03UTC) 83 81 67 53 50 47 43 43 42 56 67 90 60 RELATIVE HUMIDITY (MEAN% 09UTC) 55 41 31 23 21 23 20 23 17 28 32 63 31 RELATIVE HUMIDITY (MEAN% 15UTC) 60 50 33 24 23 23 18 22 18 33 40 71 35 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 37.6 10.3 14.3 1.0 16.3 9.0 0.0 0.0 1.0 0.9 9.9 51.2 151.5 DAYS WITH PRECIPITATION >=10 1 0 0 0 0 0 0 0 0 0 0 3 4 DAYS WITH PRECIPITATION >= 5 3 1 1 0 2 1 0 0 0 0 1 4 13 DAYS WITH PRECIPITATION >= 1 6 3 3 0 2 2 0 0 1 0 2 5 24 DAYS WITH PRECIPITATION 8 3 5 2 6 2 0 0 2 2 4 11 45 GREATEST DAILY PRECIPITATION 18.4 7.0 8.0 1.0 8.0 7.0 0.0 0.0 1.0 0.6 7.0 15.0 18.4 DAY 24 19 10 24 3 12 ** ** 21 23 12 1 DAY WITH THUNDER STORM 0 0 1 0 1 0 0 0 2 0 0 0 4 DAYS WITH SNOW OR SLEET 5 0 0 0 0 0 0 0 0 0 0 0 5 DAYS WITH DUST 1 1 0 1 2 1 0 2 0 0 1 0 9 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 90 90 90 90 270 270 270 PREVAILING WIND SPEED(KNOTS) 6.1 8.2 7.9 9.3 8.9 8.4 9.7 7.2 7.9 7.0 7.6 6.3 8.1 PREVAILING WIND PERCENT 9.7 20.1 16.5 24.6 19.0 13.3 27.4 19.8 12.9 9.3 11.7 6.5 12.5 CALMS PERCENT OF WIND 78.6 58.5 59.7 49.2 48.4 51.7 51.2 55.2 59.2 68.1 76.3 85.1 61.8 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 289 285 288 284 283 354 92 73 354 316 284 282 300 VECTOR WIND MAGNITUDE(KNOTS) 0.6 2.4 2.3 2.9 2.2 0.6 3.0 1.0 0.4 0.5 1.4 0.4 0.8 WIND STEADINESES (MEAN %) 40.0 72.7 74.2 67.4 50.0 15.8 69.8 31.3 12.5 20.8 73.7 50.0 26.7 WIND SPEED (MEAN KNOTS) 1.5 3.3 3.1 4.3 4.4 3.8 4.3 3.2 3.2 2.4 1.9 0.8 3.0 FASTEST WIND DIRECTION 290 240 310 280 290 330 80 310 280 280 290 280 240 FASTEST WIND SPEED (KNOTS) 19 31 19 29 29 17 17 19 19 29 23 14 31 DAY 5 21 10 15 5 10 5 27 23 2 19 5 DAYS WITH SKY CLEAR (0-2)/8 16 18 15 17 19 28 29 29 26 24 17 12 250 DAYS WITH P.CLOUDY (3-6)/8 10 6 13 11 12 1 2 2 4 6 11 12 90 DAYS WITH CLOUDY (7-8)/8 5 4 3 2 0 1 0 0 0 1 2 7 25 DAYS WITH VISIBILITY =< 2 KM 5 0 0 0 0 0 0 0 1 0 0 3 9 DURATION OF SUNSHINE HOURS 184.2 219.4 260.3 282.1 317.8 363.0 352.7 349.4 303.7 274.8 210.0 147.7 3265.1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 920.0 916.6 914.2 912.3 909.9 906.9 906.6 909.3 912.5 916.1 917.9 919.9 913.5 MAX. QFE PRESSURE IN HPA 925.4 926.9 924.2 922.0 915.2 916.7 914.5 916.4 922.1 925.9 926.5 925.5 926.9 DAY-HOUR 29- 6 9- 6 1- 6 2- 6 1- 6 2- 6 28- 6 14- 6 22- 6 10- 6 20- 6 22- 6 MIN. QFE PRESSURE IN HPA 914.0 900.2 902.7 903.7 901.4 899.0 898.4 902.3 903.9 910.5 904.7 912.4 898.4 DAY-HOUR 19-12 21-12 25- 0 26-12 29-15 17-15 10-15 27-12 5-15 1-12 18-15 5-12 MEAN QNH PRESSURE IN HPA 1021.4 1017.7 1015.1 1013.0 1010.4 1007.2 1006.9 1009.8 1013.3 1017.3 1019.2 1021.3 1014.4 MAX. QNH PRESSURE IN HPA 1027.3 1029.0 1026.0 1023.6 1016.2 1017.9 1015.5 1017.5 1023.8 1027.9 1028.5 1027.5 1029.0 DAY-HOUR 29- 6 9- 6 1- 6 2- 6 1- 6 2- 6 28- 6 14- 6 22- 6 10- 6 20- 6 22- 6 MIN. QNH PRESSURE IN HPA 1014.9 999.9 1002.6 1003.7 1001.2 998.6 997.9 1002.2 1003.9 1011.1 1004.8 1013.2 997.9 DAY-HOUR 19-12 21-12 25- 0 26-12 29-15 17-15 10-15 27-12 5-15 1-12 18-15 5-12 MEAN QFF PRESSURE IN HPA 1023.7 1018.7 1013.3 1008.7 1004.7 999.8 998.8 1002.0 1007.2 1013.5 1018.5 1022.1 1010.9 MAX. QFF PRESSURE IN HPA 1033.3 1031.5 1026.0 1019.6 1012.0 1011.4 1007.1 1010.8 1019.8 1023.9 1031.5 1030.1 1033.3 DAY-HOUR 29- 6 9- 6 12- 3 2- 6 5-15 2- 6 29- 6 14- 6 22- 6 10- 6 20- 6 22- 6 MIN. QFF PRESSURE IN HPA 1016.6 999.3 998.3 997.5 994.9 990.8 989.0 994.3 996.6 1005.4 1003.1 1013.9 989.0 DAY-HOUR 4-12 21-12 25- 0 26-12 29-15 17-15 10-15 27-12 5-15 1-12 18-15 5-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 919.8 916.6 914.2 912.5 910.1 907.1 906.7 909.4 912.4 916.1 917.7 919.9 913.5 MAX. QFE PRESSURE IN HPA 924.3 925.2 922.4 920.4 914.0 914.0 912.3 914.5 919.0 923.0 923.5 924.0 925.2 DAY 30 10 2 2 23 2 28 12 22 10 20 23 MIN. QFE PRESSURE IN HPA 915.9 905.2 902.7 907.3 903.0 900.7 900.3 904.2 906.7 911.3 906.9 914.2 900.3 DAY 4 21 25 9 30 18 11 24 5 1 18 5 MEAN QNH PRESSURE IN HPA 1021.3 1017.7 1015.1 1013.3 1010.7 1007.4 1007.0 1010.0 1013.2 1017.3 1019.0 1021.3 1014.4 MAX. QNH PRESSURE IN HPA 1026.1 1027.1 1024.1 1021.9 1014.9 1014.9 1013.1 1015.5 1020.4 1024.7 1025.3 1025.8 1027.1 DAY 30 10 2 2 23 2 28 12 22 10 20 23 MIN. QNH PRESSURE IN HPA 1017.0 1005.4 1002.6 1007.6 1003.0 1000.5 1000.0 1004.3 1007.0 1012.0 1007.2 1015.2 1000.0 DAY 4 21 25 9 30 18 11 24 5 1 18 5 MEAN QFF PRESSURE IN HPA 1023.2 1018.4 1013.1 1008.8 1005.0 1000.1 998.8 1002.0 1006.9 1013.1 1017.9 1021.7 1010.8 MAX. QFF PRESSURE IN HPA 1031.5 1028.5 1024.7 1017.2 1009.5 1010.1 1005.3 1008.0 1016.5 1021.8 1027.6 1027.5 1031.5 DAY 30 10 12 2 6 13 28 12 22 28 20 23 MIN. QFF PRESSURE IN HPA 1017.7 1005.2 998.3 1002.2 995.7 993.0 991.0 996.4 999.8 1005.9 1004.8 1015.8 991.0 DAY 4 21 25 26 30 18 11 24 5 1 18 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 920.0 917.1 915.1 913.3 911.2 908.5 908.3 911.0 913.7 917.0 918.4 920.1 914.5 MAX. QFE PRESSURE IN HPA 924.5 925.3 922.6 921.2 914.5 915.8 913.3 915.2 920.7 924.5 924.7 923.9 925.3 DAY 30 10 2 2 1 2 28 12 22 10 20 10 MIN. QFE PRESSURE IN HPA 915.3 904.8 903.7 907.8 904.3 901.7 902.6 905.0 908.0 911.8 907.1 913.9 901.7 DAY 19 21 25 26 30 18 11 27 5 1 18 5 MEAN QNH PRESSURE IN HPA 1021.5 1018.3 1016.1 1014.2 1011.8 1009.0 1008.7 1011.6 1014.6 1018.2 1019.7 1021.6 1015.4 MAX. QNH PRESSURE IN HPA 1026.4 1027.2 1024.3 1022.8 1015.5 1016.9 1014.2 1016.2 1022.2 1026.4 1026.6 1025.7 1027.2 DAY 30 10 2 2 1 2 28 12 22 10 20 10 MIN. QNH PRESSURE IN HPA 1016.3 1004.9 1003.7 1008.2 1004.4 1001.5 1002.5 1005.1 1008.4 1012.5 1007.4 1014.8 1001.5 DAY 19 21 25 26 30 18 11 27 5 1 18 5 MEAN QFF PRESSURE IN HPA 1024.1 1019.8 1014.7 1010.2 1006.5 1001.8 1000.8 1004.2 1009.0 1015.0 1019.6 1022.7 1012.4 MAX. QFF PRESSURE IN HPA 1032.5 1029.2 1026.0 1019.1 1011.0 1011.1 1006.7 1009.6 1019.0 1023.0 1030.5 1028.5 1032.5 DAY 30 10 12 2 1 2 30 14 22 10 20 22 MIN. QFF PRESSURE IN HPA 1018.1 1005.5 999.8 1002.5 997.5 994.3 993.6 997.9 1001.5 1007.9 1005.5 1016.2 993.6 DAY 4 21 25 26 30 18 11 27 5 1 18 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 921.3 918.1 916.1 914.2 911.7 909.1 908.8 911.8 914.6 918.1 919.5 921.4 915.4 MAX. QFE PRESSURE IN HPA 925.4 926.9 924.2 922.0 915.2 916.7 914.5 916.4 922.1 925.9 926.5 925.5 926.9 DAY 29 9 1 2 1 2 28 14 22 10 20 22 MIN. QFE PRESSURE IN HPA 916.2 904.8 903.7 908.0 904.5 903.3 903.4 905.8 909.0 912.3 907.0 914.8 903.3 DAY 19 21 25 12 30 18 11 27 5 1 18 5 MEAN QNH PRESSURE IN HPA 1022.8 1019.4 1017.2 1015.2 1012.4 1009.5 1009.3 1012.5 1015.6 1019.4 1020.9 1023.0 1016.4 MAX. QNH PRESSURE IN HPA 1027.3 1029.0 1026.0 1023.6 1016.2 1017.9 1015.5 1017.5 1023.8 1027.9 1028.5 1027.5 1029.0 DAY 29 9 1 2 1 2 28 14 22 10 20 22 MIN. QNH PRESSURE IN HPA 1017.3 1004.9 1003.7 1008.4 1004.6 1003.3 1003.4 1006.0 1009.5 1013.1 1007.3 1015.8 1003.3 DAY 19 21 25 12 30 18 11 27 5 1 18 5 MEAN QFF PRESSURE IN HPA 1025.6 1020.8 1015.6 1010.8 1006.6 1002.0 1001.2 1004.5 1009.4 1015.8 1020.5 1024.1 1013.1 MAX. QFF PRESSURE IN HPA 1033.3 1031.5 1025.9 1019.6 1011.3 1011.4 1007.1 1010.8 1019.8 1023.9 1031.5 1030.1 1033.3 DAY 29 9 12 2 19 2 29 14 22 10 20 22 MIN. QFF PRESSURE IN HPA 1019.0 1004.8 1000.6 1002.6 997.0 995.0 994.3 998.3 1001.8 1007.0 1004.9 1017.0 994.3 DAY 4 21 25 26 30 18 10 24 5 1 18 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 920.3 917.1 914.8 912.7 910.3 907.6 907.5 910.2 913.1 916.5 918.0 919.9 914.0 MAX. QFE PRESSURE IN HPA 924.3 926.8 923.4 920.6 913.7 915.0 913.1 915.0 920.5 924.5 925.0 924.4 926.8 DAY 29 9 1 2 19 2 29 14 22 10 20 9 MIN. QFE PRESSURE IN HPA 915.0 902.6 902.9 905.6 903.5 901.4 902.0 904.1 906.9 912.1 905.6 913.4 901.4 DAY 19 21 25 26 30 18 10 27 5 1 18 5 MEAN QNH PRESSURE IN HPA 1021.8 1018.3 1015.8 1013.6 1010.9 1008.0 1007.8 1010.8 1014.0 1017.6 1019.3 1021.4 1014.9 MAX. QNH PRESSURE IN HPA 1026.1 1028.9 1025.2 1022.1 1014.6 1016.0 1014.0 1016.0 1022.0 1026.4 1026.9 1026.3 1028.9 DAY 29 9 1 2 19 2 29 14 22 10 20 9 MIN. QNH PRESSURE IN HPA 1016.0 1002.5 1002.8 1005.8 1003.5 1001.2 1001.9 1004.2 1007.2 1012.9 1005.8 1014.3 1001.2 DAY 19 21 25 26 30 18 10 27 5 1 18 5 MEAN QFF PRESSURE IN HPA 1023.9 1019.0 1013.7 1009.0 1004.9 1000.5 999.6 1002.7 1007.7 1013.5 1018.1 1021.8 1011.2 MAX. QFF PRESSURE IN HPA 1031.4 1030.6 1024.1 1017.9 1009.4 1009.6 1005.9 1008.7 1017.6 1022.8 1029.1 1027.4 1031.4 DAY 29 9 11 2 5 12 29 14 22 10 20 22 MIN. QFF PRESSURE IN HPA 1018.0 1001.9 999.4 999.2 996.4 992.9 992.2 996.3 999.4 1007.0 1003.5 1015.1 992.2 DAY 4 21 25 26 30 18 9 27 5 1 18 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 919.0 915.3 912.7 910.6 908.3 905.6 905.2 907.8 910.9 914.6 916.7 918.8 912.1 MAX. QFE PRESSURE IN HPA 923.3 926.1 921.7 918.4 913.0 912.6 911.0 912.9 917.9 922.5 923.5 923.4 926.1 DAY 29 9 1 2 5 12 28 14 22 10 20 9 MIN. QFE PRESSURE IN HPA 914.0 900.2 902.9 903.7 902.8 899.6 899.3 902.3 904.9 910.5 904.9 912.4 899.3 DAY 19 21 25 26 29 17 10 27 5 1 18 5 MEAN QNH PRESSURE IN HPA 1020.3 1016.3 1013.6 1011.2 1008.8 1005.8 1005.4 1008.2 1011.6 1015.6 1017.9 1020.1 1012.9 MAX. QNH PRESSURE IN HPA 1025.1 1028.1 1023.3 1019.7 1013.8 1013.4 1011.7 1013.7 1019.2 1024.2 1025.3 1025.2 1028.1 DAY 29 9 1 2 5 12 28 14 22 10 20 9 MIN. QNH PRESSURE IN HPA 1014.9 999.9 1002.8 1003.7 1002.7 999.3 998.9 1002.2 1005.0 1011.1 1005.0 1013.2 998.9 DAY 19 21 25 26 29 17 10 27 5 1 18 5 MEAN QFF PRESSURE IN HPA 1022.2 1016.9 1011.5 1006.7 1003.0 998.5 997.3 1000.1 1005.2 1011.4 1016.9 1020.4 1009.2 MAX. QFF PRESSURE IN HPA 1030.2 1030.1 1022.3 1015.2 1009.6 1009.9 1003.8 1006.6 1014.6 1020.4 1027.4 1025.2 1030.2 DAY 29 9 11 2 5 12 28 14 22 10 20 22 MIN. QFF PRESSURE IN HPA 1016.6 999.3 1000.9 997.5 995.8 991.2 989.4 994.3 997.5 1005.4 1003.2 1013.9 989.4 DAY 4 21 24 26 30 17 9 27 5 1 18 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 919.4 915.5 912.8 910.3 908.1 904.9 904.5 907.2 910.6 914.7 917.3 919.4 912.1 MAX. QFE PRESSURE IN HPA 924.3 925.8 922.1 918.0 913.7 912.6 910.4 912.2 918.6 922.2 923.5 923.4 925.8 DAY 29 9 1 1 5 12 29 14 22 10 20 9 MIN. QFE PRESSURE IN HPA 914.7 901.5 903.2 904.0 901.4 899.0 898.4 902.3 903.9 910.6 904.7 913.4 898.4 DAY 19 21 25 12 29 17 10 27 5 1 18 5 MEAN QNH PRESSURE IN HPA 1020.8 1016.6 1013.6 1010.9 1008.5 1005.1 1004.6 1007.6 1011.3 1015.7 1018.6 1020.8 1012.8 MAX. QNH PRESSURE IN HPA 1026.1 1027.8 1023.8 1019.3 1014.6 1013.4 1011.0 1013.0 1019.9 1023.9 1025.3 1025.2 1027.8 DAY 29 9 1 1 5 12 29 14 22 10 20 9 MIN. QNH PRESSURE IN HPA 1015.7 1001.3 1003.2 1004.0 1001.2 998.6 997.9 1002.2 1003.9 1011.2 1004.8 1014.3 997.9 DAY 19 21 25 12 29 17 10 27 5 1 18 5 MEAN QFF PRESSURE IN HPA 1023.4 1017.9 1012.1 1007.0 1003.1 997.8 996.7 1000.0 1005.6 1012.5 1018.5 1021.8 1009.7 MAX. QFF PRESSURE IN HPA 1032.4 1030.2 1023.5 1015.4 1012.0 1010.0 1002.8 1006.3 1016.1 1020.8 1028.6 1027.5 1032.4 DAY 29 9 1 2 5 12 29 14 22 27 20 22 MIN. QFF PRESSURE IN HPA 1017.4 1002.4 1000.9 1000.7 994.9 990.8 989.0 994.9 996.6 1007.5 1003.1 1015.6 989.0 DAY 4 21 25 26 29 17 10 27 5 1 18 5 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 920.0 916.4 913.9 912.0 909.5 906.1 905.7 908.4 912.0 916.0 918.0 919.9 913.2 MAX. QFE PRESSURE IN HPA 924.7 926.2 922.6 920.0 914.1 912.9 911.1 913.2 919.0 922.8 923.5 924.0 926.2 DAY 29 9 1 1 5 12 29 11 21 10 20 22 MIN. QFE PRESSURE IN HPA 915.7 903.9 904.1 906.0 902.3 899.9 899.5 904.1 905.9 911.0 904.9 914.1 899.5 DAY 19 21 25 12 29 17 10 23 5 6 18 5 MEAN QNH PRESSURE IN HPA 1021.5 1017.5 1014.8 1012.7 1010.0 1006.4 1005.9 1008.8 1012.8 1017.1 1019.3 1021.4 1014.0 MAX. QNH PRESSURE IN HPA 1026.6 1028.2 1024.3 1021.5 1015.0 1013.7 1011.8 1014.1 1020.4 1024.5 1025.3 1025.8 1028.2 DAY 29 9 1 1 5 12 29 11 21 10 20 22 MIN. QNH PRESSURE IN HPA 1016.8 1003.9 1004.2 1006.2 1002.2 999.6 999.1 1004.2 1006.1 1011.7 1005.0 1015.0 999.1 DAY 19 21 25 12 29 17 10 23 5 6 18 5 MEAN QFF PRESSURE IN HPA 1024.2 1018.8 1013.1 1008.3 1004.2 998.8 997.7 1000.9 1006.6 1013.5 1018.8 1022.4 1010.6 MAX. QFF PRESSURE IN HPA 1033.1 1030.5 1024.8 1017.3 1010.7 1010.0 1003.6 1006.9 1016.8 1022.0 1028.5 1028.4 1033.1 DAY 29 9 11 1 5 12 29 13 21 27 20 22 MIN. QFF PRESSURE IN HPA 1018.6 1004.0 1000.6 1001.8 995.0 991.3 989.8 995.8 998.4 1007.6 1003.3 1016.3 989.8 DAY 4 21 24 12 29 17 10 23 5 6 18 5 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 920.0 916.6 914.1 912.5 909.8 906.7 906.4 908.9 912.5 916.3 917.9 919.8 913.4 MAX. QFE PRESSURE IN HPA 924.4 925.5 922.8 920.4 913.8 913.7 911.0 914.2 919.6 923.0 923.5 924.1 925.5 DAY 29 9 1 1 5 1 28 11 22 10 19 17 MIN. QFE PRESSURE IN HPA 915.9 905.4 903.7 908.0 902.6 900.7 899.8 903.5 906.5 911.8 906.7 914.4 899.8 DAY 3 21 24 12 29 17 10 23 5 6 18 4 MEAN QNH PRESSURE IN HPA 1021.4 1017.8 1015.0 1013.2 1010.4 1007.0 1006.7 1009.4 1013.3 1017.4 1019.1 1021.3 1014.3 MAX. QNH PRESSURE IN HPA 1026.3 1027.5 1024.5 1021.9 1014.7 1014.6 1011.7 1015.2 1021.0 1024.7 1025.3 1025.9 1027.5 DAY 29 9 1 1 5 1 28 11 22 10 19 17 MIN. QNH PRESSURE IN HPA 1017.0 1005.6 1003.7 1008.4 1002.5 1000.5 999.5 1003.5 1006.8 1012.5 1007.0 1015.4 999.5 DAY 3 21 24 12 29 17 10 23 5 6 18 4 MEAN QFF PRESSURE IN HPA 1023.5 1018.4 1012.9 1008.6 1004.4 999.5 998.5 1001.4 1007.0 1013.3 1018.0 1021.7 1010.6 MAX. QFF PRESSURE IN HPA 1031.5 1028.7 1024.7 1017.3 1010.0 1009.4 1004.0 1007.8 1016.5 1021.6 1027.8 1027.5 1031.5 DAY 29 9 11 1 5 12 29 14 21 27 20 22 MIN. QFF PRESSURE IN HPA 1018.0 1005.1 999.6 1002.9 995.6 992.1 990.1 995.5 999.6 1008.2 1004.6 1015.8 990.1 DAY 3 21 24 25 29 17 10 23 5 6 17 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.4 9.2 13.4 16.9 23.6 29.2 32.1 31.7 27.2 21.1 11.3 4.0 18.7 MINIMUN AIR TEMPERATURE (C) -0.6 2.1 5.0 10.5 14.5 19.7 23.2 22.0 16.7 11.8 5.2 -0.3 10.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 10 26 24 1 0 0 0 61 DAYS WITH MINIMUM TEMP. <=-4 9 0 1 0 0 0 0 0 0 0 0 8 18 DAYS WITH FREEZING MIN.<= 0 21 8 8 0 0 0 0 0 0 0 4 17 58 TEMPERATURE RECORDS LOWEST(C) -6.0 -2.5 -4.0 3.5 8.2 16.0 19.6 19.0 12.0 6.2 -1.6 -7.0 -7.0 DAY 14 4 7 1 5 3 6 16 30 27 30 31 MAXIMUM AIR TEMPERATURE (C) 11.1 17.4 22.1 23.5 32.2 37.5 39.6 40.3 37.0 30.8 18.7 9.4 26.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 20 30 31 31 30 20 0 0 162 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.0 24.0 29.6 29.5 39.6 42.0 43.5 44.4 39.6 36.0 26.5 13.5 44.4 DAY 1 26 27 30 29 13 16 10 3 3 11 8 DIF. BETWEEN (MAX.-MIN.) (C) 11.7 15.3 17.1 13.0 17.7 17.8 16.4 18.3 20.3 19.0 13.5 9.7 15.8 MEAN DAILY TEMP. (MDT) (C) 5.2 9.8 13.5 17.0 23.3 28.6 31.4 31.2 26.9 21.3 12.0 4.6 18.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 1.0 0.8 87.6 228.7 321.6 315.6 176.9 39.7 0.0 0.0 1172.1 HEATING DEG. DAYS(BASE 18 0C) 395.7 230.9 145.5 55.2 0.7 0.0 0.0 0.0 0.0 4.5 181.9 416.0 1430.3 DEWPOINT (MEAN C) -1.6 -3.3 -2.9 6.1 5.2 7.5 6.9 7.8 5.5 2.6 3.0 -2.0 2.9 MIXING RATIO (G/KG) 3.86 3.38 3.68 6.73 6.31 7.48 7.08 7.54 6.41 5.19 5.32 3.80 5.57 VAPOUR PRESSURE (HPA) 5.65 4.96 5.37 9.76 9.14 10.77 10.22 10.86 9.31 7.58 7.79 5.57 8.08 SATURATION DEF. (HPA) 3.22 7.48 11.28 10.51 22.20 31.94 39.69 38.48 29.42 19.53 6.54 2.90 18.60 RELATIVE HUMIDITY (MEAN %) 68 46 38 55 35 28 23 25 27 33 61 68 42 RELATIVE HUMIDITY (MAX. %) 87 68 62 79 55 42 38 40 40 51 81 85 61 RELATIVE HUMIDITY (MIN. %) 44 24 17 33 20 17 13 15 17 17 36 48 25 RELATIVE HUMIDITY (MEAN% 03UTC) 83 65 57 73 50 40 37 39 39 48 80 80 58 RELATIVE HUMIDITY (MEAN% 09UTC) 51 30 22 41 25 21 16 18 18 21 42 53 30 RELATIVE HUMIDITY (MEAN% 15UTC) 62 35 26 45 25 22 14 17 22 27 52 60 34 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 28.0 3.1 6.0 66.4 4.0 0.0 0.0 0.0 0.0 2.8 26.0 13.4 149.7 DAYS WITH PRECIPITATION >=10 0 0 0 3 0 0 0 0 0 0 1 0 4 DAYS WITH PRECIPITATION >= 5 3 0 0 4 0 0 0 0 0 0 1 1 9 DAYS WITH PRECIPITATION >= 1 6 1 2 8 1 0 0 0 0 1 4 3 26 DAYS WITH PRECIPITATION 6 6 8 10 1 0 0 0 0 2 5 9 47 GREATEST DAILY PRECIPITATION 9.0 2.5 3.8 26.0 4.0 0.0 0.0 0.0 0.0 2.0 18.0 5.0 26.0 DAY 11 19 28 12 4 ** ** ** ** 31 16 19 DAY WITH THUNDER STORM 0 0 0 1 0 0 0 0 0 0 0 0 1 DAYS WITH SNOW OR SLEET 2 1 0 0 0 0 0 0 0 0 0 2 5 DAYS WITH DUST 2 1 4 4 1 0 2 0 0 0 3 0 17 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 90 90 90 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 8.2 8.3 9.5 8.6 10.0 9.6 10.2 8.3 8.5 7.0 6.9 9.5 8.6 PREVAILING WIND PERCENT 12.9 25.9 16.1 22.5 18.1 20.4 37.5 28.2 11.7 10.5 15.8 12.5 14.1 CALMS PERCENT OF WIND 73.8 50.9 63.7 51.7 50.8 37.9 40.3 51.2 69.2 67.3 71.7 69.8 58.3 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 292 284 283 281 287 299 92 88 80 285 285 287 297 VECTOR WIND MAGNITUDE(KNOTS) 1.6 3.5 2.5 2.9 2.7 1.4 4.7 2.5 0.5 0.8 1.4 1.4 0.9 WIND STEADINESES (MEAN %) 76.2 83.3 71.4 65.9 58.7 23.7 83.9 65.8 20.8 34.8 70.0 53.8 25.0 WIND SPEED (MEAN KNOTS) 2.1 4.2 3.5 4.4 4.6 5.9 5.6 3.8 2.4 2.3 2.0 2.6 3.6 FASTEST WIND DIRECTION 310 250 310 240 270 300 90 90 90 220 290 280 240 FASTEST WIND SPEED (KNOTS) 25 23 29 39 27 27 29 19 16 17 31 23 39 DAY 31 27 10 25 12 22 4 2 6 31 12 22 DAYS WITH SKY CLEAR (0-2)/8 15 17 15 6 21 27 28 30 29 24 16 9 237 DAYS WITH P.CLOUDY (3-6)/8 12 10 14 19 8 3 3 1 1 6 8 15 100 DAYS WITH CLOUDY (7-8)/8 4 1 2 5 2 0 0 0 0 1 6 7 28 DAYS WITH VISIBILITY =< 2 KM 4 2 1 3 0 0 0 0 0 0 2 6 18 DURATION OF SUNSHINE HOURS 190.4 232.6 256.6 198.7 322.1 368.9 364.8 356.4 319.8 273.2 192.5 131.5 3207.5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 918.8 917.3 914.6 911.6 910.7 908.2 908.1 906.9 912.7 916.2 919.8 918.6 913.6 MAX. QFE PRESSURE IN HPA 927.3 927.4 929.8 921.0 918.0 917.4 915.1 914.5 919.5 922.2 929.6 929.2 929.8 DAY-HOUR 26- 6 6- 6 11- 6 1- 6 17- 6 25- 6 29- 6 31- 6 30- 6 10- 6 18- 6 3- 6 MIN. QFE PRESSURE IN HPA 909.0 906.2 905.2 901.2 904.9 898.8 899.5 900.0 906.6 909.7 911.0 905.5 898.8 DAY-HOUR 8- 0 25-12 22-12 3-12 29-12 20-15 24-15 7-15 10-15 21-12 12- 9 21-12 MEAN QNH PRESSURE IN HPA 1020.1 1018.5 1015.6 1012.3 1011.3 1008.6 1008.5 1007.2 1013.5 1017.3 1021.3 1019.9 1014.5 MAX. QNH PRESSURE IN HPA 1029.4 1029.5 1032.1 1022.6 1019.3 1018.6 1016.1 1015.5 1020.9 1023.9 1031.9 1031.5 1032.1 DAY-HOUR 26- 6 6- 6 11- 6 1- 6 17- 6 25- 6 29- 6 31- 6 30- 6 10- 6 18- 6 3- 6 MIN. QNH PRESSURE IN HPA 1009.5 1006.4 1005.4 1001.0 1005.0 998.4 999.1 999.7 1006.9 1010.2 1011.7 1005.7 998.4 DAY-HOUR 8- 0 25-12 22-12 3-12 29-12 20-15 24-15 7-15 10-15 21-12 12- 9 21-12 MEAN QFF PRESSURE IN HPA 1022.1 1018.6 1014.1 1009.3 1006.0 1001.4 1000.4 999.2 1007.0 1013.0 1020.5 1022.0 1011.1 MAX. QFF PRESSURE IN HPA 1033.0 1031.7 1033.2 1021.4 1015.0 1011.9 1008.7 1008.4 1015.4 1019.1 1032.6 1033.0 1033.2 DAY-HOUR 26- 6 19- 6 11- 3 1- 3 14- 6 25- 6 30- 3 31- 6 30- 6 11- 6 18- 6 5- 6 MIN. QFF PRESSURE IN HPA 1009.2 1004.1 1001.3 999.2 998.1 990.9 990.5 991.6 1001.0 1005.6 1008.0 1006.8 990.5 DAY-HOUR 8- 0 25-12 28- 9 3-12 29-12 20-15 24-15 8-12 10-15 21-12 12- 9 21-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 918.7 917.3 914.7 911.7 910.9 908.4 908.2 907.0 912.7 916.2 919.7 918.6 913.7 MAX. QFE PRESSURE IN HPA 926.0 925.9 927.3 919.4 915.0 915.0 913.8 911.9 917.1 920.1 927.6 927.0 927.6 DAY 26 6 11 1 17 25 30 30 23 11 18 4 MIN. QFE PRESSURE IN HPA 909.0 909.1 907.2 904.2 906.0 902.0 903.1 901.8 907.9 911.7 911.7 908.1 901.8 DAY 8 27 27 4 20 20 25 18 11 22 12 22 MEAN QNH PRESSURE IN HPA 1020.1 1018.5 1015.6 1012.5 1011.5 1008.9 1008.6 1007.3 1013.5 1017.4 1021.1 1019.9 1014.6 MAX. QNH PRESSURE IN HPA 1028.0 1027.9 1029.4 1020.8 1016.0 1016.0 1014.7 1012.6 1018.3 1021.6 1029.7 1029.1 1029.7 DAY 26 6 11 1 17 25 30 30 23 11 18 4 MIN. QNH PRESSURE IN HPA 1009.5 1009.6 1007.5 1004.3 1006.2 1001.9 1003.1 1001.6 1008.3 1012.4 1012.4 1008.5 1001.6 DAY 8 27 27 4 20 20 25 18 11 22 12 22 MEAN QFF PRESSURE IN HPA 1021.5 1018.4 1013.9 1009.4 1006.3 1001.8 1000.4 999.1 1006.8 1012.7 1019.9 1021.7 1011.0 MAX. QFF PRESSURE IN HPA 1030.5 1028.3 1029.5 1019.8 1011.5 1009.2 1007.0 1005.2 1013.0 1016.5 1029.9 1031.8 1031.8 DAY 26 6 11 1 14 25 30 30 30 11 18 5 MIN. QFF PRESSURE IN HPA 1009.2 1006.5 1002.7 1003.3 999.6 993.8 994.3 993.3 1002.3 1007.1 1008.6 1009.7 993.3 DAY 8 27 28 4 20 20 25 8 11 22 12 22 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 918.9 917.7 915.5 912.2 912.0 910.0 909.6 908.4 913.9 917.1 920.1 918.7 914.5 MAX. QFE PRESSURE IN HPA 926.0 926.8 929.3 920.4 916.3 916.2 915.1 913.3 918.1 921.3 928.1 927.3 929.3 DAY 26 6 11 1 14 25 30 31 23 11 18 3 MIN. QFE PRESSURE IN HPA 909.0 909.6 907.4 904.6 907.0 903.3 905.0 902.7 909.2 913.0 911.7 909.2 902.7 DAY 8 27 27 4 20 20 24 17 11 22 12 21 MEAN QNH PRESSURE IN HPA 1020.2 1019.0 1016.5 1013.0 1012.7 1010.5 1010.2 1008.9 1014.8 1018.3 1021.5 1020.0 1015.5 MAX. QNH PRESSURE IN HPA 1028.0 1028.9 1031.6 1021.9 1017.4 1017.3 1016.1 1014.2 1019.4 1022.9 1030.3 1029.4 1031.6 DAY 26 6 11 1 14 25 30 31 23 11 18 3 MIN. QNH PRESSURE IN HPA 1009.5 1010.1 1007.7 1004.7 1007.3 1003.3 1005.1 1002.6 1009.7 1013.8 1012.4 1009.7 1002.6 DAY 8 27 27 4 20 20 24 17 11 22 12 21 MEAN QFF PRESSURE IN HPA 1022.5 1019.7 1015.6 1010.4 1007.7 1003.5 1002.3 1001.2 1008.9 1014.7 1021.2 1022.4 1012.5 MAX. QFF PRESSURE IN HPA 1032.0 1030.7 1033.2 1021.4 1014.2 1010.6 1008.7 1007.4 1015.0 1019.1 1031.3 1032.2 1033.2 DAY 26 6 11 1 14 25 30 31 30 11 18 5 MIN. QFF PRESSURE IN HPA 1010.2 1007.5 1003.4 1004.1 1001.2 995.4 996.8 994.9 1004.4 1009.5 1009.9 1011.8 994.9 DAY 8 27 27 4 20 20 25 18 11 22 12 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 920.1 918.9 916.5 912.9 912.6 910.3 910.2 909.2 914.8 918.1 921.3 919.8 915.4 MAX. QFE PRESSURE IN HPA 927.3 927.4 929.8 921.0 918.0 917.4 915.1 914.5 919.5 922.2 929.6 929.2 929.8 DAY 26 6 11 1 17 25 29 31 30 10 18 3 MIN. QFE PRESSURE IN HPA 911.4 910.1 908.0 905.0 907.6 903.3 904.6 903.6 910.8 914.7 911.9 910.1 903.3 DAY 8 25 28 4 20 20 24 17 10 30 12 21 MEAN QNH PRESSURE IN HPA 1021.5 1020.3 1017.7 1013.8 1013.4 1011.0 1010.8 1009.7 1015.8 1019.4 1022.8 1021.3 1016.4 MAX. QNH PRESSURE IN HPA 1029.4 1029.5 1032.1 1022.6 1019.3 1018.6 1016.1 1015.5 1020.9 1023.9 1031.9 1031.5 1032.1 DAY 26 6 11 1 17 25 29 31 30 10 18 3 MIN. QNH PRESSURE IN HPA 1012.1 1010.7 1008.4 1005.1 1008.0 1003.3 1004.7 1003.6 1011.5 1015.7 1012.6 1010.7 1003.3 DAY 8 25 28 4 20 20 24 17 10 30 12 21 MEAN QFF PRESSURE IN HPA 1023.9 1020.7 1016.2 1010.8 1008.1 1003.6 1002.6 1001.6 1009.3 1015.2 1022.3 1023.6 1013.2 MAX. QFF PRESSURE IN HPA 1033.0 1031.7 1032.9 1021.1 1015.0 1011.9 1008.4 1008.4 1015.4 1019.1 1032.6 1033.0 1033.0 DAY 26 19 11 1 14 25 29 31 30 11 18 5 MIN. QFF PRESSURE IN HPA 1012.5 1008.8 1003.7 1004.7 1001.1 994.8 996.0 995.2 1005.4 1010.7 1009.7 1012.6 994.8 DAY 8 25 28 4 20 20 24 17 9 22 12 21 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 918.9 917.6 914.9 911.8 911.1 908.8 908.8 907.8 913.4 916.6 920.0 918.8 914.0 MAX. QFE PRESSURE IN HPA 926.0 925.1 927.7 920.0 916.5 916.1 913.6 913.5 918.0 921.1 928.3 928.5 928.5 DAY 26 6 11 1 17 25 30 31 30 10 18 3 MIN. QFE PRESSURE IN HPA 910.3 908.3 905.7 904.3 906.3 902.0 902.8 902.7 909.3 912.3 911.0 908.1 902.0 DAY 8 25 28 3 20 20 24 17 10 21 12 21 MEAN QNH PRESSURE IN HPA 1020.2 1018.9 1016.0 1012.6 1011.7 1009.2 1009.3 1008.2 1014.3 1017.7 1021.5 1020.1 1015.0 MAX. QNH PRESSURE IN HPA 1028.0 1027.0 1029.8 1021.5 1017.7 1017.2 1014.5 1014.4 1019.3 1022.7 1030.5 1030.7 1030.7 DAY 26 6 11 1 17 25 30 31 30 10 18 3 MIN. QNH PRESSURE IN HPA 1010.9 1008.7 1005.9 1004.4 1006.6 1001.9 1002.7 1002.6 1009.8 1013.1 1011.7 1008.5 1001.9 DAY 8 25 28 3 20 20 24 17 10 21 12 21 MEAN QFF PRESSURE IN HPA 1021.8 1018.6 1014.1 1009.4 1006.4 1002.0 1001.0 999.9 1007.6 1012.9 1020.3 1021.9 1011.3 MAX. QFF PRESSURE IN HPA 1030.9 1030.3 1030.3 1019.7 1012.8 1010.3 1006.7 1007.2 1014.2 1017.5 1030.5 1031.8 1031.8 DAY 14 19 11 1 17 25 30 31 30 10 18 4 MIN. QFF PRESSURE IN HPA 1010.4 1006.3 1001.3 1002.8 999.3 994.1 993.7 994.4 1003.5 1008.4 1008.0 1010.1 993.7 DAY 8 25 28 3 29 20 24 17 10 21 12 21 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 917.8 915.8 913.0 910.3 909.2 906.7 906.7 905.6 911.3 914.7 918.7 917.6 912.3 MAX. QFE PRESSURE IN HPA 924.2 922.8 924.9 918.0 914.7 913.3 911.4 911.0 916.1 919.3 927.0 927.6 927.6 DAY 26 19 11 1 17 25 29 31 29 10 18 3 MIN. QFE PRESSURE IN HPA 910.0 906.2 905.2 901.2 904.9 899.9 900.6 900.8 907.0 909.7 911.2 905.5 899.9 DAY 8 25 22 3 29 19 24 17 10 21 12 21 MEAN QNH PRESSURE IN HPA 1019.1 1016.9 1013.9 1010.9 1009.7 1007.0 1007.0 1005.8 1012.0 1015.7 1020.0 1018.9 1013.1 MAX. QNH PRESSURE IN HPA 1026.0 1024.5 1026.8 1019.3 1015.7 1014.2 1012.1 1011.7 1017.2 1020.7 1029.1 1029.7 1029.7 DAY 26 19 11 1 17 25 29 31 29 10 18 3 MIN. QNH PRESSURE IN HPA 1010.6 1006.4 1005.4 1001.0 1005.0 999.6 1000.3 1000.6 1007.3 1010.2 1011.9 1005.7 999.6 DAY 8 25 22 3 29 19 24 17 10 21 12 21 MEAN QFF PRESSURE IN HPA 1020.6 1016.6 1012.1 1007.8 1004.4 999.8 998.8 997.5 1005.2 1011.1 1018.9 1020.6 1009.5 MAX. QFF PRESSURE IN HPA 1029.3 1027.5 1027.5 1017.4 1010.7 1007.4 1004.7 1004.4 1012.0 1015.8 1029.1 1030.4 1030.4 DAY 14 19 11 1 17 25 29 31 30 10 18 3 MIN. QFF PRESSURE IN HPA 1010.5 1004.1 1002.2 999.2 998.1 991.7 991.5 991.6 1001.0 1005.6 1009.2 1006.8 991.5 DAY 8 25 27 3 29 19 24 8 10 21 12 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 918.3 916.2 913.1 910.4 908.8 906.1 906.0 904.9 910.9 915.0 919.1 918.0 912.2 MAX. QFE PRESSURE IN HPA 924.6 923.9 924.1 917.3 913.5 912.5 911.0 910.7 915.8 919.6 927.2 927.2 927.2 DAY 27 5 11 1 17 25 29 31 29 10 18 3 MIN. QFE PRESSURE IN HPA 911.0 907.4 905.2 902.5 904.9 898.8 899.5 900.0 906.6 910.0 912.2 905.7 898.8 DAY 7 26 22 3 29 20 24 7 10 21 13 21 MEAN QNH PRESSURE IN HPA 1019.6 1017.3 1014.0 1011.0 1009.3 1006.4 1006.3 1005.1 1011.6 1016.1 1020.5 1019.3 1013.0 MAX. QNH PRESSURE IN HPA 1026.5 1025.7 1025.9 1018.5 1014.4 1013.3 1011.7 1011.3 1016.9 1021.0 1029.3 1029.3 1029.3 DAY 27 5 11 1 17 25 29 31 29 10 18 3 MIN. QNH PRESSURE IN HPA 1011.7 1007.7 1005.4 1002.4 1005.0 998.4 999.1 999.7 1006.9 1010.6 1013.0 1005.9 998.4 DAY 7 26 22 3 29 20 24 7 10 21 13 21 MEAN QFF PRESSURE IN HPA 1021.9 1017.9 1013.0 1008.3 1004.2 999.2 998.4 997.3 1005.5 1012.5 1020.2 1021.7 1010.0 MAX. QFF PRESSURE IN HPA 1031.0 1027.8 1027.5 1017.1 1009.6 1006.4 1004.4 1004.5 1012.4 1018.3 1030.1 1031.1 1031.1 DAY 14 5 11 1 2 25 29 31 30 31 18 14 MIN. QFF PRESSURE IN HPA 1012.1 1005.8 1002.4 1001.0 998.5 990.9 990.5 991.8 1001.0 1006.7 1010.7 1007.5 990.5 DAY 7 26 27 3 29 20 24 7 10 21 13 21 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 918.9 917.3 914.3 911.6 910.4 907.5 907.3 905.9 912.1 915.9 919.9 918.6 913.3 MAX. QFE PRESSURE IN HPA 925.6 925.1 925.7 918.0 914.3 914.0 912.0 911.7 917.2 920.1 927.7 927.3 927.7 DAY 25 5 10 1 17 24 29 31 21 10 18 4 MIN. QFE PRESSURE IN HPA 910.5 907.8 906.1 904.2 905.6 900.0 901.2 900.8 907.5 910.5 913.3 905.5 900.0 DAY 7 26 27 3 19 20 24 17 10 21 11 21 MEAN QNH PRESSURE IN HPA 1020.3 1018.6 1015.3 1012.4 1011.0 1007.9 1007.7 1006.1 1012.9 1017.0 1021.3 1020.0 1014.2 MAX. QNH PRESSURE IN HPA 1027.6 1027.0 1027.7 1019.3 1015.3 1014.9 1012.8 1012.4 1018.4 1021.6 1029.8 1029.4 1029.8 DAY 25 5 10 1 17 24 29 31 21 10 18 4 MIN. QNH PRESSURE IN HPA 1011.1 1008.2 1006.3 1004.3 1005.8 999.7 1001.0 1000.6 1007.9 1011.1 1014.2 1005.7 999.7 DAY 7 26 27 3 19 20 24 17 10 21 11 21 MEAN QFF PRESSURE IN HPA 1022.6 1018.9 1013.8 1009.3 1005.6 1000.5 999.4 998.1 1006.4 1012.9 1020.9 1022.3 1010.9 MAX. QFF PRESSURE IN HPA 1031.3 1028.5 1027.6 1016.5 1010.3 1008.2 1005.3 1005.6 1013.1 1017.2 1030.7 1031.9 1031.9 DAY 14 5 10 1 17 24 30 31 30 10 18 4 MIN. QFF PRESSURE IN HPA 1011.0 1006.1 1001.9 1002.8 999.2 991.5 992.1 992.1 1001.9 1006.1 1011.3 1007.4 991.5 DAY 7 26 27 25 29 19 24 17 10 21 11 21 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 918.8 917.5 914.8 911.7 910.7 908.1 908.0 906.6 912.6 916.2 920.0 918.6 913.6 MAX. QFE PRESSURE IN HPA 926.0 926.0 927.7 918.7 914.8 915.0 912.8 912.1 917.5 920.3 927.7 927.3 927.7 DAY 25 5 10 1 16 24 29 31 21 10 18 4 MIN. QFE PRESSURE IN HPA 910.0 908.7 907.2 904.2 905.6 901.0 901.7 901.3 907.9 911.0 912.4 907.2 901.0 DAY 7 26 26 3 19 19 24 17 10 21 11 21 MEAN QNH PRESSURE IN HPA 1020.2 1018.8 1015.8 1012.4 1011.3 1008.5 1008.4 1006.9 1013.4 1017.3 1021.4 1019.9 1014.5 MAX. QNH PRESSURE IN HPA 1028.0 1028.0 1029.8 1020.1 1015.8 1016.0 1013.6 1012.9 1018.7 1021.8 1029.8 1029.4 1029.8 DAY 25 5 10 1 16 24 29 31 21 10 18 4 MIN. QNH PRESSURE IN HPA 1010.6 1009.2 1007.5 1004.3 1005.8 1000.8 1001.5 1001.1 1008.3 1011.7 1013.2 1007.5 1000.8 DAY 7 26 26 3 19 19 24 17 10 21 11 21 MEAN QFF PRESSURE IN HPA 1021.8 1018.5 1013.9 1009.2 1005.9 1001.2 1000.0 998.7 1006.8 1012.5 1020.3 1021.7 1010.9 MAX. QFF PRESSURE IN HPA 1030.8 1028.1 1029.4 1016.5 1011.0 1009.1 1005.6 1006.1 1013.0 1016.9 1029.9 1032.1 1032.1 DAY 25 5 10 1 13 24 29 31 30 10 18 4 MIN. QFF PRESSURE IN HPA 1009.8 1006.5 1003.3 1003.1 998.9 992.4 992.6 992.5 1002.3 1006.0 1009.3 1008.9 992.4 DAY 7 26 26 3 19 19 24 7 10 21 11 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.6 6.8 10.6 17.8 22.5 28.9 34.2 31.1 25.0 21.2 10.1 5.5 18.3 MINIMUN AIR TEMPERATURE (C) 0.2 1.1 4.1 11.3 14.4 19.7 25.5 21.6 15.0 12.1 3.2 1.1 10.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 12 31 19 1 0 0 0 63 DAYS WITH MINIMUM TEMP. <=-4 2 1 3 0 0 0 0 0 0 0 3 5 14 DAYS WITH FREEZING MIN.<= 0 15 9 5 0 0 0 0 0 0 0 9 14 52 TEMPERATURE RECORDS LOWEST(C) -5.0 -5.0 -5.5 4.0 7.8 13.0 21.5 18.0 8.8 8.5 -4.6 -6.0 -6.0 DAY 3 18 3 18 10 7 2 31 28 17 23 23 MAXIMUM AIR TEMPERATURE (C) 12.5 13.5 17.0 25.0 30.0 37.0 41.8 39.2 34.2 30.3 17.8 10.7 25.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 7 19 30 31 31 26 20 0 0 164 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.5 17.0 23.2 33.8 35.5 42.0 46.0 42.0 38.5 34.0 25.0 17.0 46.0 DAY 9 9 20 6 16 23 17 15 6 10 1 9 DIF. BETWEEN (MAX.-MIN.) (C) 12.3 12.4 12.9 13.7 15.6 17.3 16.3 17.6 19.2 18.2 14.6 9.6 14.9 MEAN DAILY TEMP. (MDT) (C) 6.4 7.3 10.5 18.2 22.2 28.4 33.6 30.4 24.6 21.2 10.5 5.9 18.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 16.1 60.1 221.1 392.1 290.8 113.1 24.3 0.0 0.0 1117.7 HEATING DEG. DAYS(BASE 18 0C) 360.7 299.2 231.3 46.8 2.1 0.0 0.0 0.0 0.0 1.3 227.0 374.9 1543.3 DEWPOINT (MEAN C) -1.8 -1.8 -0.4 5.5 3.2 6.0 7.4 5.3 2.5 1.6 -2.5 0.1 2.1 MIXING RATIO (G/KG) 3.74 3.78 4.35 6.40 5.69 6.61 7.37 6.33 5.22 4.86 3.65 4.42 5.20 VAPOUR PRESSURE (HPA) 5.48 5.52 6.34 9.29 8.27 9.55 10.58 9.15 7.59 7.09 5.36 6.48 7.56 SATURATION DEF. (HPA) 4.12 4.75 7.07 12.38 20.44 32.64 45.36 38.17 26.48 19.74 7.97 2.91 18.50 RELATIVE HUMIDITY (MEAN %) 64 59 52 50 32 26 21 22 26 31 45 71 42 RELATIVE HUMIDITY (MAX. %) 80 81 75 74 51 44 37 38 43 48 65 88 60 RELATIVE HUMIDITY (MIN. %) 42 34 27 29 18 14 12 12 14 16 25 51 25 RELATIVE HUMIDITY (MEAN% 03UTC) 77 77 72 70 48 43 36 38 42 45 61 84 58 RELATIVE HUMIDITY (MEAN% 09UTC) 49 40 35 37 21 18 15 16 17 19 30 58 30 RELATIVE HUMIDITY (MEAN% 15UTC) 57 49 39 37 23 15 12 12 17 22 38 64 32 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 29.8 15.6 35.2 35.6 15.2 0.0 0.0 0.0 0.0 1.0 6.2 26.8 165.4 DAYS WITH PRECIPITATION >=10 1 0 1 1 1 0 0 0 0 0 0 1 5 DAYS WITH PRECIPITATION >= 5 3 2 3 3 1 0 0 0 0 0 1 2 15 DAYS WITH PRECIPITATION >= 1 5 4 7 7 1 0 0 0 0 1 1 4 30 DAYS WITH PRECIPITATION 5 7 12 10 6 0 0 0 0 2 3 7 52 GREATEST DAILY PRECIPITATION 10.0 5.0 11.0 12.0 14.0 0.0 0.0 0.0 0.0 1.0 5.0 13.0 14.0 DAY 19 5 26 16 29 ** ** ** ** 30 29 2 DAY WITH THUNDER STORM 0 0 0 0 2 0 0 0 0 1 0 0 3 DAYS WITH SNOW OR SLEET 3 1 0 0 0 0 0 0 0 0 0 1 5 DAYS WITH DUST 0 1 1 2 1 2 1 1 1 0 1 3 14 WIND DIRECTION (PREVAILING) 270 270 270 270 315 270 90 90 90 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 8.1 8.3 10.9 7.8 11.7 9.4 9.4 9.6 8.2 8.2 8.7 8.5 8.7 PREVAILING WIND PERCENT 28.2 27.7 23.4 20.4 14.1 16.3 30.2 33.9 20.8 22.2 18.8 12.1 17.3 CALMS PERCENT OF WIND 59.3 43.8 49.2 45.0 38.3 46.3 36.3 48.8 57.5 54.0 61.3 71.0 50.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 277 289 281 280 313 352 85 89 90 266 289 296 298 VECTOR WIND MAGNITUDE(KNOTS) 2.6 3.2 3.0 2.4 1.2 0.7 2.2 3.9 1.1 2.1 2.1 1.0 0.9 WIND STEADINESES (MEAN %) 81.2 68.1 62.5 51.1 21.1 14.6 39.3 84.8 33.3 55.3 61.8 41.7 21.4 WIND SPEED (MEAN KNOTS) 3.2 4.7 4.8 4.7 5.7 4.8 5.6 4.6 3.3 3.8 3.4 2.4 4.2 FASTEST WIND DIRECTION 260 280 280 270 300 270 100 90 90 240 300 300 270 FASTEST WIND SPEED (KNOTS) 27 19 29 39 29 27 19 19 17 27 23 19 39 DAY 7 5 8 11 23 4 5 3 15 18 11 11 DAYS WITH SKY CLEAR (0-2)/8 15 10 13 5 15 25 29 31 30 21 17 11 222 DAYS WITH P.CLOUDY (3-6)/8 9 13 14 15 13 5 2 0 0 8 11 11 101 DAYS WITH CLOUDY (7-8)/8 7 5 4 10 3 0 0 0 0 2 2 9 42 DAYS WITH VISIBILITY =< 2 KM 2 2 1 0 0 0 0 0 0 1 0 1 7 DURATION OF SUNSHINE HOURS 187.3 172.8 212.5 183.1 299.0 338.0 345.5 361.3 321.6 251.6 215.2 151.7 3039.6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 918.1 914.2 914.4 914.0 914.1 907.8 904.1 909.5 912.5 915.8 919.9 921.4 913.8 MAX. QFE PRESSURE IN HPA 924.3 922.3 927.3 920.5 923.7 915.0 912.6 915.2 922.5 922.4 931.0 932.4 932.4 DAY-HOUR 12- 6 12- 6 2- 6 3- 6 2- 6 7- 6 4- 6 30- 6 27- 6 15- 6 25- 6 12- 6 MIN. QFE PRESSURE IN HPA 904.6 903.7 901.6 906.0 907.2 899.3 898.9 904.1 905.0 908.3 911.2 911.2 898.9 DAY-HOUR 28-15 20-12 26-12 27-15 23-12 30-15 24-15 1- 0 7-15 27-12 14-12 6-12 MEAN QNH PRESSURE IN HPA 1019.4 1015.1 1015.4 1014.9 1015.0 1008.2 1004.1 1010.0 1013.3 1016.8 1021.4 1023.0 1014.7 MAX. QNH PRESSURE IN HPA 1026.1 1024.0 1029.4 1022.0 1025.5 1016.0 1013.4 1016.2 1024.2 1024.1 1033.4 1035.0 1035.0 DAY-HOUR 12- 6 12- 6 2- 6 3- 6 2- 6 7- 6 4- 6 30- 6 27- 6 15- 6 25- 6 12- 6 MIN. QNH PRESSURE IN HPA 1004.7 1003.7 1001.4 1006.2 1007.5 998.9 998.5 1004.2 1005.1 1008.7 1011.9 1011.9 998.5 DAY-HOUR 28-15 20-12 26-12 27-15 23-12 30-15 24-15 1- 0 7-15 27-12 14-12 6-12 MEAN QFF PRESSURE IN HPA 1020.9 1016.1 1014.9 1011.7 1010.2 1001.1 995.3 1002.3 1007.7 1012.5 1021.2 1024.5 1011.5 MAX. QFF PRESSURE IN HPA 1028.4 1025.2 1032.5 1019.6 1023.2 1011.2 1005.3 1008.8 1019.9 1020.9 1036.4 1038.4 1038.4 DAY-HOUR 23- 6 12- 6 2- 6 3- 6 2- 6 7- 6 4- 3 30- 6 27- 6 15- 6 25- 6 12- 6 MIN. QFF PRESSURE IN HPA 1006.7 1005.9 999.2 1002.1 1001.7 991.2 989.5 995.4 998.6 1003.2 1009.7 1011.7 989.5 DAY-HOUR 28-15 20-12 26-12 27-15 23-12 30-15 24-15 1- 0 7-12 27-12 14-12 6-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 918.1 914.2 914.4 913.9 914.2 908.0 904.0 909.5 912.6 915.8 919.8 921.3 913.8 MAX. QFE PRESSURE IN HPA 923.0 920.6 925.0 919.8 920.9 913.2 909.3 912.9 920.1 920.5 929.2 931.1 931.1 DAY 12 13 3 8 2 7 3 4 27 16 26 12 MIN. QFE PRESSURE IN HPA 906.4 906.4 905.4 907.9 907.7 900.7 900.4 904.1 906.4 910.8 913.0 912.8 900.4 DAY 29 19 13 28 8 30 31 1 7 27 14 7 MEAN QNH PRESSURE IN HPA 1019.3 1015.1 1015.4 1014.8 1015.2 1008.4 1004.0 1010.0 1013.4 1016.8 1021.3 1022.9 1014.7 MAX. QNH PRESSURE IN HPA 1024.7 1022.1 1026.9 1021.2 1022.4 1014.1 1009.8 1013.7 1021.6 1022.0 1031.5 1033.5 1033.5 DAY 12 13 3 8 2 7 3 4 27 16 26 12 MIN. QNH PRESSURE IN HPA 1006.7 1006.7 1005.6 1008.3 1008.1 1000.5 1000.1 1004.2 1006.7 1011.5 1013.8 1013.6 1000.1 DAY 29 19 13 28 8 30 31 1 7 27 14 7 MEAN QFF PRESSURE IN HPA 1020.4 1015.6 1014.7 1011.4 1010.3 1001.3 995.1 1002.0 1007.5 1012.2 1020.7 1024.1 1011.3 MAX. QFF PRESSURE IN HPA 1027.2 1023.5 1029.6 1017.1 1019.3 1009.3 1001.7 1006.0 1017.4 1017.6 1033.2 1035.5 1035.5 DAY 23 13 3 19 2 7 3 31 27 15 26 12 MIN. QFF PRESSURE IN HPA 1008.8 1008.3 1004.0 1003.7 1002.1 992.2 991.2 995.4 1000.0 1005.9 1011.0 1013.7 991.2 DAY 29 19 21 28 8 30 31 1 7 27 14 7 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 918.1 914.6 915.0 914.5 915.1 909.5 905.5 911.1 913.8 916.6 920.3 921.3 914.6 MAX. QFE PRESSURE IN HPA 922.9 920.1 925.0 919.8 922.8 914.5 912.4 914.6 921.4 921.4 929.0 931.3 931.3 DAY 12 7 3 8 2 7 4 4 27 15 25 12 MIN. QFE PRESSURE IN HPA 908.5 905.6 905.4 909.0 908.0 902.8 901.8 905.5 907.3 910.8 913.6 912.6 901.8 DAY 29 19 13 28 8 30 1 1 7 27 14 6 MEAN QNH PRESSURE IN HPA 1019.4 1015.6 1016.0 1015.5 1016.1 1010.1 1005.7 1011.7 1014.7 1017.8 1021.8 1022.9 1015.6 MAX. QNH PRESSURE IN HPA 1024.6 1021.6 1026.9 1021.2 1024.5 1015.5 1013.2 1015.6 1023.0 1023.0 1031.3 1033.8 1033.8 DAY 12 7 3 8 2 7 4 4 27 15 25 12 MIN. QNH PRESSURE IN HPA 1008.9 1005.8 1005.6 1009.5 1008.4 1002.7 1001.6 1005.7 1007.6 1011.5 1014.5 1013.4 1001.6 DAY 29 19 13 28 8 30 1 1 7 27 14 6 MEAN QFF PRESSURE IN HPA 1021.4 1016.9 1016.0 1012.6 1011.6 1003.2 997.0 1004.3 1009.5 1014.1 1022.1 1024.8 1012.8 MAX. QFF PRESSURE IN HPA 1027.2 1023.6 1030.2 1018.4 1022.0 1010.7 1005.3 1008.5 1019.5 1019.9 1034.1 1036.9 1036.9 DAY 23 13 3 19 2 7 4 31 27 15 25 12 MIN. QFF PRESSURE IN HPA 1010.6 1007.7 1005.1 1005.4 1003.1 994.6 993.2 997.6 1001.9 1006.1 1012.5 1013.6 993.2 DAY 16 19 13 28 8 30 30 1 7 27 14 6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 919.5 915.6 916.1 915.3 915.7 910.0 906.2 911.8 914.8 917.7 921.5 922.7 915.6 MAX. QFE PRESSURE IN HPA 924.3 922.3 927.3 920.5 923.7 915.0 912.6 915.2 922.5 922.4 931.0 932.4 932.4 DAY 12 12 2 3 2 7 4 30 27 15 25 12 MIN. QFE PRESSURE IN HPA 910.5 905.6 906.3 909.7 910.1 903.0 902.9 905.8 907.9 911.6 914.9 913.0 902.9 DAY 28 19 26 28 8 30 8 1 7 27 14 6 MEAN QNH PRESSURE IN HPA 1020.9 1016.7 1017.2 1016.4 1016.8 1010.5 1006.4 1012.5 1015.8 1018.9 1023.1 1024.4 1016.6 MAX. QNH PRESSURE IN HPA 1026.1 1024.0 1029.4 1022.0 1025.5 1016.0 1013.4 1016.2 1024.2 1024.1 1033.4 1035.0 1035.0 DAY 12 12 2 3 2 7 4 30 27 15 25 12 MIN. QNH PRESSURE IN HPA 1011.1 1005.8 1006.6 1010.2 1010.7 1003.0 1002.8 1006.0 1008.3 1012.3 1015.9 1013.8 1002.8 DAY 28 19 26 28 8 30 8 1 7 27 14 6 MEAN QFF PRESSURE IN HPA 1022.8 1017.9 1016.8 1013.3 1011.9 1003.3 997.6 1004.7 1010.0 1014.8 1023.1 1026.2 1013.5 MAX. QFF PRESSURE IN HPA 1028.4 1025.2 1032.5 1019.6 1023.2 1011.2 1005.1 1008.8 1019.9 1020.9 1036.4 1038.4 1038.4 DAY 23 12 2 3 2 7 4 30 27 15 25 12 MIN. QFF PRESSURE IN HPA 1012.7 1007.7 1004.6 1005.6 1005.0 994.7 994.0 997.8 1001.6 1007.9 1014.0 1014.1 994.0 DAY 28 19 26 28 23 30 8 1 7 27 2 6 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 918.3 914.6 915.0 914.5 914.4 908.7 905.1 910.4 913.4 916.2 920.1 921.6 914.4 MAX. QFE PRESSURE IN HPA 923.4 921.2 926.6 919.1 922.4 913.7 911.4 913.8 921.0 921.2 929.7 930.9 930.9 DAY 31 12 2 3 2 7 3 30 27 15 25 12 MIN. QFE PRESSURE IN HPA 907.4 905.2 902.8 909.2 909.0 902.4 901.7 905.6 906.8 910.2 913.0 911.7 901.7 DAY 28 19 26 27 23 30 30 1 7 27 14 6 MEAN QNH PRESSURE IN HPA 1019.7 1015.6 1016.0 1015.5 1015.4 1009.1 1005.3 1011.0 1014.2 1017.3 1021.6 1023.2 1015.3 MAX. QNH PRESSURE IN HPA 1025.2 1022.8 1028.6 1020.5 1024.1 1014.6 1012.1 1014.7 1022.6 1022.8 1032.0 1033.3 1033.3 DAY 31 12 2 3 2 7 3 30 27 15 25 12 MIN. QNH PRESSURE IN HPA 1007.7 1005.4 1002.7 1009.7 1009.5 1002.3 1001.5 1005.8 1007.1 1010.8 1013.8 1012.4 1001.5 DAY 28 19 26 27 23 30 30 1 7 27 14 6 MEAN QFF PRESSURE IN HPA 1020.8 1016.3 1015.3 1012.0 1010.5 1002.0 996.3 1003.2 1008.4 1012.6 1021.0 1024.4 1011.9 MAX. QFF PRESSURE IN HPA 1026.6 1023.3 1031.2 1017.6 1021.0 1009.5 1003.6 1007.0 1018.4 1018.6 1034.0 1036.3 1036.3 DAY 23 6 2 3 2 7 3 30 27 15 25 12 MIN. QFF PRESSURE IN HPA 1009.6 1007.4 1000.3 1005.4 1003.7 994.5 992.6 997.0 1000.5 1004.6 1011.4 1012.3 992.6 DAY 28 19 26 27 23 30 30 1 7 27 1 6 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 917.0 912.9 913.1 912.9 912.7 906.6 903.1 908.2 911.1 914.4 918.7 920.4 912.6 MAX. QFE PRESSURE IN HPA 922.2 919.6 925.5 918.8 920.4 911.9 909.6 911.4 918.8 919.3 928.8 928.9 928.9 DAY 22 12 2 8 2 6 3 4 27 15 25 12 MIN. QFE PRESSURE IN HPA 905.2 903.7 901.6 907.0 907.2 900.3 899.9 904.6 905.1 908.3 911.2 911.2 899.9 DAY 28 20 26 27 23 30 30 1 7 27 14 6 MEAN QNH PRESSURE IN HPA 1018.2 1013.8 1014.0 1013.8 1013.5 1006.9 1003.1 1008.6 1011.8 1015.3 1020.1 1021.9 1013.4 MAX. QNH PRESSURE IN HPA 1023.9 1021.0 1027.5 1020.2 1021.9 1012.6 1010.1 1012.1 1020.2 1020.7 1031.0 1031.2 1031.2 DAY 22 12 2 8 2 6 3 4 27 15 25 12 MIN. QNH PRESSURE IN HPA 1005.4 1003.7 1001.4 1007.3 1007.5 1000.0 999.6 1004.7 1005.2 1008.7 1011.9 1011.9 999.6 DAY 28 20 26 27 23 30 30 1 7 27 14 6 MEAN QFF PRESSURE IN HPA 1019.2 1014.3 1013.2 1010.3 1008.7 999.8 994.1 1000.7 1005.9 1010.7 1019.5 1023.1 1010.0 MAX. QFF PRESSURE IN HPA 1026.5 1022.0 1030.1 1015.6 1018.9 1007.7 1001.8 1004.3 1016.1 1016.5 1033.0 1034.0 1034.0 DAY 22 28 2 18 2 7 3 4 27 15 25 12 MIN. QFF PRESSURE IN HPA 1007.1 1005.9 999.2 1002.4 1001.7 992.1 990.5 995.9 998.6 1003.2 1009.7 1011.7 990.5 DAY 28 20 26 27 23 30 30 1 7 27 14 6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.5 913.3 913.1 912.9 912.4 905.8 902.1 907.5 910.7 914.4 919.1 921.1 912.5 MAX. QFE PRESSURE IN HPA 922.8 919.9 925.0 917.4 919.9 911.2 908.4 910.5 918.3 919.3 928.8 929.9 929.9 DAY 22 12 2 8 2 4 3 30 26 15 25 11 MIN. QFE PRESSURE IN HPA 904.6 904.9 902.3 906.0 907.5 899.3 898.9 904.6 905.0 908.3 912.6 911.2 898.9 DAY 28 20 26 27 7 30 24 1 7 27 13 6 MEAN QNH PRESSURE IN HPA 1018.7 1014.1 1014.0 1013.7 1013.2 1006.0 1001.9 1007.8 1011.3 1015.4 1020.5 1022.6 1013.3 MAX. QNH PRESSURE IN HPA 1024.5 1021.4 1026.9 1018.6 1021.4 1011.9 1008.8 1011.1 1019.6 1020.7 1031.0 1032.2 1032.2 DAY 22 12 2 8 2 4 3 30 26 15 25 11 MIN. QNH PRESSURE IN HPA 1004.7 1005.0 1002.2 1006.2 1007.9 998.9 998.5 1004.7 1005.1 1008.7 1013.4 1011.9 998.5 DAY 28 20 26 27 7 30 24 1 7 27 13 6 MEAN QFF PRESSURE IN HPA 1020.6 1015.4 1013.9 1010.8 1008.7 999.1 993.4 1000.5 1006.1 1011.7 1020.9 1024.5 1010.5 MAX. QFF PRESSURE IN HPA 1027.2 1023.3 1029.9 1016.0 1018.8 1006.6 1001.0 1004.6 1016.0 1017.5 1033.7 1035.4 1035.4 DAY 22 28 2 30 2 6 3 30 27 15 25 12 MIN. QFF PRESSURE IN HPA 1006.7 1007.1 1000.8 1002.1 1003.0 991.2 989.5 996.6 999.3 1003.5 1011.1 1011.7 989.5 DAY 28 20 26 27 7 30 24 1 7 27 1 6 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 918.2 914.2 914.2 914.0 913.9 906.8 903.2 908.6 911.8 915.4 920.0 921.6 913.5 MAX. QFE PRESSURE IN HPA 922.9 921.4 925.6 919.1 920.7 912.9 908.8 911.5 919.4 920.5 929.5 930.6 930.6 DAY 11 12 2 30 2 6 3 3 26 15 25 11 MIN. QFE PRESSURE IN HPA 905.8 906.5 903.9 907.2 909.1 899.7 899.7 905.8 905.9 910.2 913.2 912.4 899.7 DAY 28 19 26 27 7 30 24 6 6 27 13 6 MEAN QNH PRESSURE IN HPA 1019.5 1015.2 1015.2 1014.9 1014.9 1007.1 1003.1 1009.1 1012.5 1016.5 1021.4 1023.2 1014.4 MAX. QNH PRESSURE IN HPA 1024.6 1023.0 1027.6 1020.5 1022.2 1013.7 1009.3 1012.2 1020.8 1022.0 1031.8 1033.0 1033.0 DAY 11 12 2 30 2 6 3 3 26 15 25 11 MIN. QNH PRESSURE IN HPA 1006.0 1006.8 1003.9 1007.5 1009.6 999.4 999.4 1006.0 1006.1 1010.8 1014.1 1013.2 999.4 DAY 28 19 26 27 7 30 24 6 6 27 13 6 MEAN QFF PRESSURE IN HPA 1021.4 1016.4 1014.7 1011.8 1009.9 999.8 994.3 1001.2 1006.7 1012.3 1021.5 1025.0 1011.3 MAX. QFF PRESSURE IN HPA 1027.7 1024.5 1030.4 1018.0 1019.8 1008.6 1000.7 1005.3 1016.0 1018.3 1034.2 1035.9 1035.9 DAY 22 12 2 30 2 6 3 30 26 15 25 12 MIN. QFF PRESSURE IN HPA 1007.9 1008.9 1003.1 1003.6 1003.8 991.5 990.1 997.5 999.4 1005.9 1011.8 1013.2 990.1 DAY 28 20 26 27 7 30 24 6 7 27 1 6 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 918.2 914.3 914.4 914.2 914.2 907.3 903.7 909.2 912.3 915.8 920.1 921.3 913.7 MAX. QFE PRESSURE IN HPA 923.2 921.3 925.6 919.6 920.9 913.2 909.2 912.4 919.5 920.6 929.5 931.1 931.1 DAY 11 28 2 30 1 6 3 30 26 15 25 11 MIN. QFE PRESSURE IN HPA 906.4 906.9 905.2 908.1 908.9 900.5 900.4 906.5 906.4 910.7 913.2 912.8 900.4 DAY 28 19 26 27 7 30 24 6 6 26 13 6 MEAN QNH PRESSURE IN HPA 1019.5 1015.3 1015.4 1015.1 1015.2 1007.7 1003.7 1009.7 1013.1 1016.9 1021.6 1022.9 1014.7 MAX. QNH PRESSURE IN HPA 1024.9 1022.9 1027.6 1021.0 1022.4 1014.1 1009.7 1013.2 1020.9 1022.1 1031.8 1033.5 1033.5 DAY 11 28 2 30 1 6 3 30 26 15 25 11 MIN. QNH PRESSURE IN HPA 1006.7 1007.2 1005.4 1008.5 1009.4 1000.2 1000.1 1006.8 1006.7 1011.3 1014.1 1013.6 1000.1 DAY 28 19 26 27 7 30 24 6 6 26 13 6 MEAN QFF PRESSURE IN HPA 1020.6 1015.9 1014.6 1011.6 1010.2 1000.5 994.7 1001.8 1007.2 1012.1 1021.0 1024.2 1011.2 MAX. QFF PRESSURE IN HPA 1027.5 1025.0 1030.1 1018.4 1019.3 1008.9 1001.1 1006.3 1016.6 1017.6 1033.7 1035.7 1035.7 DAY 22 28 2 30 1 6 3 30 26 15 25 11 MIN. QFF PRESSURE IN HPA 1007.4 1009.3 1004.0 1004.5 1003.2 992.4 990.8 998.6 999.6 1005.3 1011.4 1013.7 990.8 DAY 15 18 26 27 7 30 24 6 7 26 13 6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.7 9.5 14.6 17.1 23.0 30.8 31.2 32.2 25.9 19.1 11.8 4.3 18.8 MINIMUN AIR TEMPERATURE (C) 1.3 2.7 7.5 10.5 15.4 22.3 22.7 23.2 16.4 10.5 6.1 -0.6 11.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 19 24 28 3 0 0 0 75 DAYS WITH MINIMUM TEMP. <=-4 1 0 0 0 0 0 0 0 0 0 0 4 5 DAYS WITH FREEZING MIN.<= 0 10 9 1 0 0 0 0 0 0 0 4 18 42 TEMPERATURE RECORDS LOWEST(C) -6.0 -1.5 0.0 3.2 11.0 16.5 19.4 18.0 8.5 5.4 -2.4 -5.5 -6.0 DAY 4 4 17 6 6 1 18 24 30 30 29 4 MAXIMUM AIR TEMPERATURE (C) 11.4 16.8 21.6 23.7 30.5 38.0 38.6 39.9 34.6 28.2 18.8 10.3 26.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 20 30 31 31 28 8 0 0 149 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 15.0 24.0 29.0 31.0 35.2 41.5 42.5 42.5 41.0 35.0 25.0 17.0 42.5 DAY 22 29 29 15 10 25 2 12 7 12 1 31 DIF. BETWEEN (MAX.-MIN.) (C) 10.1 14.1 14.1 13.2 15.1 15.7 15.9 16.7 18.2 17.7 12.7 10.9 14.5 MEAN DAILY TEMP. (MDT) (C) 6.3 9.7 14.6 17.1 22.9 30.2 30.6 31.5 25.5 19.3 12.4 4.9 18.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 2.4 71.6 274.9 298.7 327.0 138.8 18.9 0.0 0.0 1132.5 HEATING DEG. DAYS(BASE 18 0C) 362.6 239.4 119.3 57.4 0.0 0.0 0.0 0.0 0.0 20.8 167.4 407.3 1374.1 DEWPOINT (MEAN C) 1.0 -3.2 0.3 3.4 7.8 7.5 7.8 5.7 3.6 2.1 3.4 -1.7 3.1 MIXING RATIO (G/KG) 4.62 3.42 4.37 5.61 7.50 7.84 7.59 6.57 5.66 5.03 5.57 3.80 5.63 VAPOUR PRESSURE (HPA) 6.75 5.01 6.39 8.16 10.85 11.28 10.94 9.49 8.24 7.37 8.14 5.58 8.18 SATURATION DEF. (HPA) 2.71 7.57 11.68 12.55 18.79 35.19 36.57 40.78 27.82 16.46 6.66 3.00 18.32 RELATIVE HUMIDITY (MEAN %) 75 45 43 46 42 26 26 21 26 36 60 68 43 RELATIVE HUMIDITY (MAX. %) 91 68 65 71 64 40 42 34 42 54 81 85 61 RELATIVE HUMIDITY (MIN. %) 52 24 24 26 24 17 15 12 15 21 37 44 26 RELATIVE HUMIDITY (MEAN% 03UTC) 86 66 60 65 58 38 40 34 42 52 75 83 58 RELATIVE HUMIDITY (MEAN% 09UTC) 63 30 29 32 28 20 19 15 18 24 41 54 31 RELATIVE HUMIDITY (MEAN% 15UTC) 67 33 33 33 32 21 18 13 17 27 53 60 34 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 70.2 0.0 9.5 39.0 23.6 0.0 2.0 0.0 0.0 0.2 23.3 9.6 177.4 DAYS WITH PRECIPITATION >=10 4 0 0 1 1 0 0 0 0 0 1 0 7 DAYS WITH PRECIPITATION >= 5 4 0 1 3 1 0 0 0 0 0 1 1 11 DAYS WITH PRECIPITATION >= 1 6 0 4 7 4 0 1 0 0 0 3 2 27 DAYS WITH PRECIPITATION 7 2 5 8 9 0 3 0 0 1 9 5 49 GREATEST DAILY PRECIPITATION 22.0 0.0 5.0 15.0 14.0 0.0 2.0 0.0 0.0 0.2 17.0 6.0 22.0 DAY 7 ** 20 17 29 ** 12 ** ** 16 19 9 DAY WITH THUNDER STORM 0 0 0 1 2 0 0 0 0 0 0 0 3 DAYS WITH SNOW OR SLEET 2 0 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH DUST 0 1 0 0 1 1 1 0 0 0 0 0 4 WIND DIRECTION (PREVAILING) 270 270 270 270 270 90 90 90 90 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 8.8 10.8 8.6 9.9 10.6 10.5 10.5 10.3 8.7 7.9 8.7 8.1 9.2 PREVAILING WIND PERCENT 16.5 27.6 23.4 22.1 31.9 25.0 28.6 35.5 20.8 15.3 21.7 20.2 18.1 CALMS PERCENT OF WIND 63.7 46.6 41.9 35.0 25.8 25.4 30.6 39.5 50.0 59.7 53.3 60.1 44.3 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 278 272 289 263 283 82 96 91 92 281 284 287 294 VECTOR WIND MAGNITUDE(KNOTS) 1.7 3.6 1.8 1.4 4.2 1.6 3.5 4.4 1.6 0.6 2.3 2.4 0.6 WIND STEADINESES (MEAN %) 56.7 64.3 38.3 25.0 56.0 21.6 51.5 77.2 41.0 18.8 59.0 75.0 12.0 WIND SPEED (MEAN KNOTS) 3.0 5.6 4.7 5.6 7.5 7.4 6.8 5.7 3.9 3.2 3.9 3.2 5.0 FASTEST WIND DIRECTION 110 250 270 260 290 60 290 90 120 290 280 310 290 FASTEST WIND SPEED (KNOTS) 19 35 33 31 35 27 29 23 19 37 29 23 37 DAY 13 23 3 24 3 22 12 17 16 22 28 27 DAYS WITH SKY CLEAR (0-2)/8 13 12 7 9 12 22 24 29 30 23 15 11 207 DAYS WITH P.CLOUDY (3-6)/8 12 17 18 14 15 8 7 2 0 8 11 15 127 DAYS WITH CLOUDY (7-8)/8 6 0 6 7 4 0 0 0 0 0 4 5 32 DAYS WITH VISIBILITY =< 2 KM 7 1 0 1 0 0 0 0 0 0 1 4 14 DURATION OF SUNSHINE HOURS 181.3 220.9 204.2 229.5 283.8 340.8 334.6 342.9 318.7 271.2 194.9 164.9 3087.7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 915.9 916.3 916.7 913.4 911.1 908.6 908.4 907.7 914.2 918.8 917.8 919.3 914.0 MAX. QFE PRESSURE IN HPA 923.7 923.4 926.5 920.8 917.6 918.3 915.9 914.5 922.1 926.1 925.2 930.7 930.7 DAY-HOUR 1- 0 10- 6 9- 6 11- 6 3-21 6- 6 18- 6 30- 6 30- 6 27- 6 29- 6 3- 6 MIN. QFE PRESSURE IN HPA 908.0 904.5 906.0 903.5 898.6 902.4 903.7 901.3 906.3 911.5 902.9 910.7 898.6 DAY-HOUR 23-15 15-12 31-12 17- 0 13-12 17-15 24-15 4-15 11-15 3-12 23-12 16-12 MEAN QNH PRESSURE IN HPA 1017.0 1017.5 1017.9 1014.3 1011.8 1009.1 1008.8 1008.0 1015.2 1020.2 1019.1 1020.7 1015.0 MAX. QNH PRESSURE IN HPA 1025.5 1025.2 1028.5 1022.3 1018.9 1019.6 1017.0 1015.5 1023.8 1028.1 1027.1 1033.1 1033.1 DAY-HOUR 1- 0 10- 6 9- 6 11- 6 3-21 6- 6 18- 6 30- 6 30- 6 27- 6 29- 6 3- 6 MIN. QNH PRESSURE IN HPA 1008.4 1004.6 1006.2 1003.5 998.2 1002.3 1003.7 1001.1 1006.6 1012.2 1002.8 1011.3 998.2 DAY-HOUR 23-15 15-12 31-12 17- 0 13-12 17-15 24-15 4-15 11-15 3-12 23-12 16-12 MEAN QFF PRESSURE IN HPA 1018.4 1017.5 1016.0 1011.4 1006.6 1001.3 1000.9 999.9 1009.2 1016.6 1018.1 1022.7 1011.5 MAX. QFF PRESSURE IN HPA 1028.7 1026.6 1027.1 1020.4 1014.4 1012.7 1009.1 1008.3 1020.0 1026.1 1029.6 1036.7 1036.7 DAY-HOUR 1- 6 8- 6 9- 6 6- 6 3-21 6- 6 18- 6 30- 6 30- 6 27- 6 29- 6 4- 6 MIN. QFF PRESSURE IN HPA 1009.2 1001.0 1001.9 998.8 993.3 994.7 995.5 993.1 999.2 1007.5 1000.7 1012.6 993.1 DAY-HOUR 27-12 15-12 31-12 17- 0 13- 9 17-12 10- 9 12-12 11-15 3-12 23-12 16-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 916.0 916.4 916.8 913.3 911.2 908.8 908.5 907.6 914.2 918.7 917.8 919.3 914.1 MAX. QFE PRESSURE IN HPA 923.7 921.5 923.7 919.1 917.3 916.1 912.8 911.6 920.2 923.6 923.7 929.5 929.5 DAY 1 10 9 11 4 6 18 30 30 27 29 4 MIN. QFE PRESSURE IN HPA 909.0 907.8 908.8 903.5 901.1 904.5 904.0 902.5 908.9 912.5 909.1 912.1 901.1 DAY 24 15 31 17 13 18 11 4 11 22 23 16 MEAN QNH PRESSURE IN HPA 1017.1 1017.6 1018.0 1014.2 1011.9 1009.3 1008.9 1008.0 1015.1 1020.1 1019.1 1020.7 1015.0 MAX. QNH PRESSURE IN HPA 1025.5 1023.1 1025.5 1020.5 1018.5 1017.2 1013.6 1012.3 1021.7 1025.4 1025.5 1031.8 1031.8 DAY 1 10 9 11 4 6 18 30 30 27 29 4 MIN. QNH PRESSURE IN HPA 1009.5 1008.2 1009.3 1003.5 1000.9 1004.6 1004.0 1002.4 1009.4 1013.3 1009.6 1012.9 1000.9 DAY 24 15 31 17 13 18 11 4 11 22 23 16 MEAN QFF PRESSURE IN HPA 1018.0 1017.2 1015.8 1011.1 1006.8 1001.6 1001.0 999.7 1008.9 1016.2 1017.7 1022.3 1011.4 MAX. QFF PRESSURE IN HPA 1028.0 1022.3 1023.3 1017.6 1013.6 1010.6 1006.1 1005.0 1017.7 1022.5 1027.3 1034.5 1034.5 DAY 1 10 17 11 4 6 18 30 30 27 29 4 MIN. QFF PRESSURE IN HPA 1009.9 1004.6 1003.7 998.8 995.4 995.9 996.8 994.4 1001.2 1008.7 1008.1 1014.3 994.4 DAY 24 15 31 17 13 18 11 12 12 22 23 16 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 916.1 916.8 917.4 914.2 912.1 910.2 910.0 909.2 915.5 919.6 918.3 919.5 914.9 MAX. QFE PRESSURE IN HPA 923.2 921.8 925.3 919.8 917.0 918.1 914.8 913.7 921.2 924.7 924.2 929.5 929.5 DAY 1 10 9 11 18 6 18 30 30 27 29 4 MIN. QFE PRESSURE IN HPA 909.2 907.1 908.0 905.0 902.3 905.3 905.6 904.7 910.1 912.8 907.9 912.3 902.3 DAY 27 15 31 17 13 18 10 4 11 22 23 16 MEAN QNH PRESSURE IN HPA 1017.2 1017.9 1018.7 1015.1 1012.9 1010.8 1010.5 1009.7 1016.6 1021.0 1019.6 1020.9 1015.9 MAX. QNH PRESSURE IN HPA 1024.9 1023.4 1027.2 1021.2 1018.2 1019.4 1015.8 1014.6 1022.8 1026.6 1026.0 1031.8 1031.8 DAY 1 10 9 11 18 6 18 30 30 27 29 4 MIN. QNH PRESSURE IN HPA 1009.7 1007.4 1008.4 1005.1 1002.2 1005.5 1005.8 1004.8 1010.7 1013.6 1008.3 1013.1 1002.2 DAY 27 15 31 17 13 18 10 4 11 22 23 16 MEAN QFF PRESSURE IN HPA 1018.8 1018.4 1017.1 1012.5 1008.0 1003.3 1002.9 1001.8 1011.1 1018.0 1019.0 1023.3 1012.8 MAX. QFF PRESSURE IN HPA 1028.1 1024.7 1026.0 1019.3 1013.7 1012.6 1008.8 1007.8 1019.7 1025.0 1029.3 1035.7 1035.7 DAY 1 8 9 11 18 6 18 30 30 27 29 4 MIN. QFF PRESSURE IN HPA 1009.9 1004.8 1003.8 1001.8 996.9 997.6 997.9 996.8 1003.3 1009.9 1007.4 1014.9 996.8 DAY 27 15 31 17 13 18 10 12 11 22 23 16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.2 917.9 918.4 914.9 912.4 910.6 910.4 909.9 916.4 920.7 919.3 920.8 915.8 MAX. QFE PRESSURE IN HPA 923.7 923.4 926.5 920.8 917.2 918.3 915.9 914.5 922.1 926.1 925.2 930.7 930.7 DAY 1 10 9 11 22 6 18 30 30 27 29 3 MIN. QFE PRESSURE IN HPA 909.7 906.9 908.0 906.6 901.7 906.2 905.6 904.7 910.7 914.6 909.1 913.0 901.7 DAY 27 23 31 17 13 17 10 4 11 22 23 16 MEAN QNH PRESSURE IN HPA 1018.4 1019.2 1019.7 1015.9 1013.2 1011.2 1011.0 1010.5 1017.6 1022.3 1020.7 1022.3 1016.8 MAX. QNH PRESSURE IN HPA 1025.5 1025.2 1028.5 1022.3 1018.4 1019.6 1017.0 1015.5 1023.8 1028.1 1027.1 1033.1 1033.1 DAY 1 10 9 11 22 6 18 30 30 27 29 3 MIN. QNH PRESSURE IN HPA 1010.2 1007.2 1008.4 1006.9 1001.5 1006.4 1005.8 1004.8 1011.3 1015.6 1009.6 1013.8 1001.5 DAY 27 23 31 17 13 17 10 4 11 22 23 16 MEAN QFF PRESSURE IN HPA 1020.1 1019.6 1017.9 1013.1 1008.0 1003.5 1003.1 1002.3 1011.6 1018.9 1020.0 1024.7 1013.6 MAX. QFF PRESSURE IN HPA 1028.7 1026.6 1027.1 1020.4 1013.7 1012.7 1009.1 1008.3 1020.0 1026.1 1029.6 1036.7 1036.7 DAY 1 8 9 6 18 6 18 30 30 27 29 4 MIN. QFF PRESSURE IN HPA 1010.2 1006.1 1003.7 1004.6 995.1 998.3 997.1 996.7 1003.8 1011.3 1009.0 1016.1 995.1 DAY 27 15 31 17 13 18 10 4 11 3 23 16 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 916.3 916.8 917.4 913.9 911.3 909.4 909.2 908.6 915.0 919.2 918.0 919.5 914.6 MAX. QFE PRESSURE IN HPA 922.6 923.1 924.8 920.1 917.0 916.8 914.6 913.4 920.5 925.0 923.8 930.2 930.2 DAY 12 8 9 12 22 6 18 30 30 27 29 3 MIN. QFE PRESSURE IN HPA 909.4 906.6 906.7 906.0 899.5 905.1 904.0 903.7 909.2 913.2 906.5 912.0 899.5 DAY 27 15 31 17 13 17 10 4 11 22 23 15 MEAN QNH PRESSURE IN HPA 1017.4 1018.0 1018.6 1014.9 1012.0 1009.9 1009.7 1009.1 1016.0 1020.6 1019.3 1021.0 1015.5 MAX. QNH PRESSURE IN HPA 1024.3 1024.8 1026.7 1021.6 1018.2 1018.0 1015.6 1014.3 1022.0 1026.9 1025.6 1032.6 1032.6 DAY 12 8 9 12 22 6 18 30 30 27 29 3 MIN. QNH PRESSURE IN HPA 1009.9 1006.9 1007.0 1006.2 999.1 1005.2 1004.0 1003.7 1009.7 1014.1 1006.8 1012.8 999.1 DAY 27 15 31 17 13 17 10 4 11 22 23 15 MEAN QFF PRESSURE IN HPA 1018.6 1017.7 1016.5 1011.8 1006.8 1002.0 1001.8 1000.8 1009.7 1016.7 1018.0 1022.7 1011.9 MAX. QFF PRESSURE IN HPA 1025.8 1025.8 1025.3 1018.9 1014.3 1011.6 1008.2 1006.9 1017.8 1024.7 1027.4 1034.7 1034.7 DAY 1 8 9 6 4 6 18 30 30 27 29 3 MIN. QFF PRESSURE IN HPA 1009.7 1003.8 1002.3 1003.2 993.3 996.8 995.5 995.2 1001.9 1009.6 1005.4 1013.8 993.3 DAY 27 15 31 16 13 18 10 4 11 3 23 15 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 915.0 914.9 915.5 912.4 909.8 907.3 907.1 906.4 912.8 917.4 916.5 918.1 912.8 MAX. QFE PRESSURE IN HPA 921.3 921.2 922.3 918.1 916.8 914.5 912.7 911.2 918.2 922.7 922.5 928.1 928.1 DAY 12 8 9 11 22 6 18 30 30 27 30 3 MIN. QFE PRESSURE IN HPA 908.3 904.5 906.0 905.9 898.6 902.7 904.3 901.8 907.2 911.5 902.9 910.7 898.6 DAY 23 15 31 17 13 17 23 4 11 3 23 16 MEAN QNH PRESSURE IN HPA 1016.0 1015.9 1016.6 1013.2 1010.4 1007.6 1007.4 1006.6 1013.6 1018.7 1017.7 1019.4 1013.6 MAX. QNH PRESSURE IN HPA 1022.9 1022.8 1024.0 1019.4 1018.0 1015.5 1013.5 1011.9 1019.5 1024.4 1024.2 1030.3 1030.3 DAY 12 8 9 11 22 6 18 30 30 27 30 3 MIN. QNH PRESSURE IN HPA 1008.7 1004.6 1006.2 1006.1 998.2 1002.6 1004.4 1001.6 1007.5 1012.2 1002.8 1011.3 998.2 DAY 23 15 31 17 13 17 23 4 11 3 23 16 MEAN QFF PRESSURE IN HPA 1016.9 1015.5 1014.5 1010.1 1005.3 999.8 999.4 998.3 1007.4 1014.8 1016.3 1021.0 1009.9 MAX. QFF PRESSURE IN HPA 1024.4 1023.5 1022.5 1016.3 1013.4 1008.9 1006.1 1004.8 1015.6 1021.8 1025.6 1032.2 1032.2 DAY 12 8 9 6 22 6 18 30 30 27 30 3 MIN. QFF PRESSURE IN HPA 1009.2 1001.0 1001.9 1001.4 993.6 994.7 995.5 993.1 999.8 1007.5 1000.7 1012.6 993.1 DAY 27 15 31 16 13 17 23 12 11 3 23 16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 915.4 915.1 915.4 912.2 909.5 906.7 906.3 905.6 912.4 917.5 917.0 918.6 912.6 MAX. QFE PRESSURE IN HPA 921.5 920.6 922.4 918.6 915.8 913.2 911.4 910.1 917.8 922.6 922.9 929.0 929.0 DAY 12 8 9 10 22 6 18 30 27 27 28 3 MIN. QFE PRESSURE IN HPA 908.0 904.5 906.3 905.1 899.5 902.4 903.7 901.3 906.3 911.9 905.3 911.5 899.5 DAY 23 15 31 16 15 17 24 4 11 3 23 16 MEAN QNH PRESSURE IN HPA 1016.4 1016.1 1016.5 1012.9 1010.1 1006.9 1006.6 1005.8 1013.2 1018.8 1018.2 1019.9 1013.4 MAX. QNH PRESSURE IN HPA 1023.1 1022.1 1024.1 1019.9 1016.9 1014.1 1012.1 1010.7 1019.1 1024.3 1024.6 1031.3 1031.3 DAY 12 8 9 10 22 6 18 30 27 27 28 3 MIN. QNH PRESSURE IN HPA 1008.4 1004.6 1006.6 1005.2 999.1 1002.3 1003.7 1001.1 1006.6 1012.6 1005.5 1012.2 999.1 DAY 23 15 31 16 15 17 24 4 11 3 23 16 MEAN QFF PRESSURE IN HPA 1017.9 1016.5 1014.9 1010.2 1005.1 999.4 998.9 998.0 1007.7 1015.7 1017.6 1022.2 1010.3 MAX. QFF PRESSURE IN HPA 1024.7 1023.8 1023.4 1017.3 1012.8 1007.3 1005.3 1004.0 1016.1 1023.0 1026.6 1034.3 1034.3 DAY 12 8 9 10 22 6 18 30 30 27 28 3 MIN. QFF PRESSURE IN HPA 1009.4 1002.0 1003.7 1000.9 994.1 995.0 995.5 993.2 999.2 1009.4 1004.1 1013.3 993.2 DAY 23 15 31 16 15 17 2 12 11 2 23 16 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 915.9 916.2 916.4 913.3 911.0 907.9 907.5 906.8 913.5 918.5 917.8 919.3 913.7 MAX. QFE PRESSURE IN HPA 922.1 921.0 923.0 919.2 916.5 914.1 912.6 911.4 918.7 922.9 923.6 929.9 929.9 DAY 12 8 9 10 3 5 7 30 26 27 28 3 MIN. QFE PRESSURE IN HPA 908.3 908.9 907.9 905.8 900.5 903.9 904.8 902.0 907.4 913.0 907.8 912.2 900.5 DAY 23 15 31 16 15 17 9 3 11 2 23 15 MEAN QNH PRESSURE IN HPA 1017.0 1017.4 1017.6 1014.1 1011.6 1008.3 1007.9 1007.1 1014.4 1019.9 1019.1 1020.7 1014.6 MAX. QNH PRESSURE IN HPA 1023.8 1022.6 1024.7 1020.6 1017.7 1015.0 1013.4 1012.1 1020.1 1024.6 1025.4 1032.2 1032.2 DAY 12 8 9 10 3 5 7 30 26 27 28 3 MIN. QNH PRESSURE IN HPA 1008.7 1009.4 1008.3 1006.0 1000.2 1003.9 1004.9 1001.9 1007.7 1013.8 1008.2 1013.0 1000.2 DAY 23 15 31 16 15 17 9 3 11 2 23 15 MEAN QFF PRESSURE IN HPA 1018.7 1017.7 1015.7 1011.2 1006.4 1000.5 999.9 998.9 1008.5 1016.5 1018.4 1023.0 1011.3 MAX. QFF PRESSURE IN HPA 1025.0 1024.0 1023.7 1017.7 1013.0 1007.9 1005.8 1005.0 1016.3 1023.3 1027.0 1035.3 1035.3 DAY 12 8 9 10 3 5 7 30 30 27 28 3 MIN. QFF PRESSURE IN HPA 1010.2 1008.0 1005.0 1001.3 995.1 995.3 996.2 994.0 1000.3 1009.6 1007.9 1015.2 994.0 DAY 23 15 30 16 15 29 2 3 11 2 23 16 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 915.9 916.6 916.6 913.5 911.4 908.4 908.1 907.4 914.1 918.7 917.9 919.1 914.0 MAX. QFE PRESSURE IN HPA 922.1 921.0 922.7 919.4 917.6 914.8 912.0 911.5 919.4 922.8 923.7 929.7 929.7 DAY 11 9 8 10 3 5 17 30 29 26 28 3 MIN. QFE PRESSURE IN HPA 908.6 909.7 909.0 904.2 900.5 903.9 904.7 902.5 907.8 912.8 909.9 912.2 900.5 DAY 23 14 31 16 15 17 9 3 11 21 23 15 MEAN QNH PRESSURE IN HPA 1017.0 1017.7 1017.7 1014.4 1012.1 1008.8 1008.5 1007.7 1015.0 1020.1 1019.2 1020.5 1014.9 MAX. QNH PRESSURE IN HPA 1023.8 1022.6 1024.4 1020.8 1018.9 1015.8 1012.8 1012.2 1020.8 1024.5 1025.5 1032.0 1032.0 DAY 11 9 8 10 3 5 17 30 29 26 28 3 MIN. QNH PRESSURE IN HPA 1009.1 1010.2 1009.5 1004.3 1000.2 1003.9 1004.8 1002.4 1008.2 1013.6 1010.5 1013.0 1000.2 DAY 23 14 31 16 15 17 9 3 11 21 23 15 MEAN QFF PRESSURE IN HPA 1018.1 1017.3 1015.5 1011.2 1006.8 1000.9 1000.6 999.4 1008.8 1016.2 1017.9 1022.3 1011.3 MAX. QFF PRESSURE IN HPA 1024.9 1022.7 1023.6 1017.6 1014.4 1009.3 1005.2 1005.0 1016.5 1022.2 1027.2 1035.0 1035.0 DAY 11 8 16 10 3 5 17 30 29 27 28 3 MIN. QFF PRESSURE IN HPA 1010.4 1007.6 1004.8 999.6 994.9 995.5 995.9 994.3 999.7 1009.0 1009.4 1014.2 994.3 DAY 23 14 30 16 15 17 9 3 11 2 23 16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MEANS AND EXTREMES FOR THE YEAR 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.0 4.6 13.3 19.1 23.6 29.8 33.8 31.1 26.9 19.6 10.2 7.3 18.6 MINIMUN AIR TEMPERATURE (C) -0.7 -0.6 6.6 11.3 15.3 20.6 25.3 22.3 17.1 10.6 4.1 1.1 11.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 14 31 21 1 0 0 0 67 DAYS WITH MINIMUM TEMP. <=-4 6 6 0 0 0 0 0 0 0 0 0 3 15 DAYS WITH FREEZING MIN.<= 0 22 17 1 0 0 0 0 0 0 0 5 9 54 TEMPERATURE RECORDS LOWEST(C) -4.5 -7.0 -2.4 1.2 10.5 16.0 21.2 17.2 12.5 2.6 -0.8 -5.5 -7.0 DAY 15 11 27 8 4 4 30 20 30 25 26 30 MAXIMUM AIR TEMPERATURE (C) 10.1 10.6 20.1 26.5 31.0 37.6 41.1 38.7 36.0 28.6 17.3 15.0 26.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 10 24 30 31 31 30 19 0 0 175 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 20.2 20.5 28.0 36.0 34.5 42.0 45.0 44.2 39.6 33.5 25.3 22.3 45.0 DAY 1 28 31 25 27 17 18 6 3 18 1 7 DIF. BETWEEN (MAX.-MIN.) (C) 10.8 11.2 13.5 15.2 15.7 17.0 15.8 16.4 18.9 18.0 13.2 13.9 14.9 MEAN DAILY TEMP. (MDT) (C) 4.7 5.0 13.4 18.9 23.1 29.1 33.2 30.5 26.6 19.6 10.7 8.0 18.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 29.1 75.0 242.5 378.3 294.2 166.5 22.6 0.0 0.0 1208.4 HEATING DEG. DAYS(BASE 18 0C) 412.2 364.5 147.6 45.2 1.2 0.0 0.0 0.0 0.0 35.3 219.7 309.1 1534.8 DEWPOINT (MEAN C) -2.5 -2.7 0.7 1.8 5.5 6.8 8.2 8.7 3.9 2.1 1.9 -1.0 2.8 MIXING RATIO (G/KG) 3.57 3.53 4.71 5.13 6.41 6.98 7.67 8.01 5.68 4.96 4.95 4.00 5.47 VAPOUR PRESSURE (HPA) 5.24 5.17 6.86 7.47 9.31 10.07 11.05 11.54 8.24 7.26 7.25 5.87 7.94 SATURATION DEF. (HPA) 3.22 3.92 9.19 16.59 21.14 34.27 43.64 36.06 29.46 17.46 5.94 5.01 18.83 RELATIVE HUMIDITY (MEAN %) 66 63 48 36 34 25 22 27 25 34 60 59 42 RELATIVE HUMIDITY (MAX. %) 81 83 71 62 57 40 36 44 42 51 82 77 61 RELATIVE HUMIDITY (MIN. %) 45 41 28 19 18 16 13 17 13 19 35 36 25 RELATIVE HUMIDITY (MEAN% 03UTC) 77 78 66 55 54 38 35 43 41 49 79 76 58 RELATIVE HUMIDITY (MEAN% 09UTC) 55 48 32 21 22 19 16 20 17 23 41 42 30 RELATIVE HUMIDITY (MEAN% 15UTC) 60 54 36 25 22 18 15 18 16 24 50 51 32 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 40.9 18.5 45.2 9.1 0.9 0.0 0.0 0.0 0.0 0.0 22.3 9.5 146.4 DAYS WITH PRECIPITATION >=10 1 0 1 0 0 0 0 0 0 0 1 0 3 DAYS WITH PRECIPITATION >= 5 4 2 3 1 0 0 0 0 0 0 2 0 12 DAYS WITH PRECIPITATION >= 1 7 3 5 2 0 0 0 0 0 0 4 4 25 DAYS WITH PRECIPITATION 7 9 7 6 7 0 0 2 0 0 9 6 53 GREATEST DAILY PRECIPITATION 16.1 6.0 25.0 8.0 0.4 0.0 0.0 0.0 0.0 0.0 11.9 4.0 25.0 DAY 10 10 12 27 26 ** ** ** ** ** 8 24 DAY WITH THUNDER STORM 0 0 0 0 1 0 0 0 0 0 1 0 2 DAYS WITH SNOW OR SLEET 5 4 0 0 0 0 0 0 0 0 1 1 11 DAYS WITH DUST 0 0 0 0 1 0 1 1 0 0 0 0 3 WIND DIRECTION (PREVAILING) 270 270 270 270 270 90 90 90 90 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 8.6 7.9 10.0 9.9 10.0 9.7 9.2 9.7 7.9 7.1 7.4 6.9 8.4 PREVAILING WIND PERCENT 33.9 23.2 37.5 22.9 17.3 23.8 46.0 31.9 23.8 21.0 21.7 22.2 20.5 CALMS PERCENT OF WIND 44.0 40.6 25.4 30.4 31.5 28.3 24.2 35.9 40.0 43.1 55.8 51.6 37.5 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 275 303 278 280 306 27 92 84 87 257 291 265 309 VECTOR WIND MAGNITUDE(KNOTS) 3.3 1.7 4.5 2.7 1.7 1.4 4.8 3.7 1.0 0.8 1.4 1.1 0.7 WIND STEADINESES (MEAN %) 76.7 37.8 65.2 39.7 27.4 21.2 69.6 66.1 22.2 18.6 41.2 33.3 13.2 WIND SPEED (MEAN KNOTS) 4.3 4.5 6.9 6.8 6.2 6.6 6.9 5.6 4.5 4.3 3.4 3.3 5.3 FASTEST WIND DIRECTION 280 300 240 300 260 300 120 70 120 230 280 250 300 FASTEST WIND SPEED (KNOTS) 25 23 27 31 29 21 23 23 19 29 27 25 31 DAY 25 22 10 4 3 8 1 11 10 21 3 26 DAYS WITH SKY CLEAR (0-2)/8 17 13 13 12 16 29 25 29 29 28 17 18 246 DAYS WITH P.CLOUDY (3-6)/8 9 9 11 14 13 1 6 2 1 3 11 8 88 DAYS WITH CLOUDY (7-8)/8 5 6 7 4 2 0 0 0 0 0 2 5 31 DAYS WITH VISIBILITY =< 2 KM 5 2 0 0 0 0 0 0 0 0 0 1 8 DURATION OF SUNSHINE HOURS 201.0 189.1 245.0 243.3 298.7 364.7 335.1 351.3 314.5 279.6 210.6 207.4 3240.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.9 916.5 913.5 915.6 912.7 908.2 906.7 908.4 911.1 917.4 919.7 920.0 914.0 MAX. QFE PRESSURE IN HPA 926.1 925.7 921.1 927.8 918.4 915.0 913.9 914.5 916.2 925.9 925.0 929.7 929.7 DAY-HOUR 8- 6 15- 6 27- 6 6- 6 19- 0 9- 3 28- 6 27- 6 9- 6 24- 6 15- 6 29- 6 MIN. QFE PRESSURE IN HPA 906.0 907.6 903.3 906.0 903.1 898.3 897.7 900.0 904.4 907.9 912.8 908.7 897.7 DAY-HOUR 23- 0 2- 0 24-12 3-15 5-15 20-15 5-15 7-15 5-15 20-12 5-21 24- 0 MEAN QNH PRESSURE IN HPA 1019.2 1017.7 1014.4 1016.7 1013.5 1008.7 1007.0 1008.9 1011.8 1018.7 1021.2 1021.5 1014.9 MAX. QNH PRESSURE IN HPA 1028.1 1027.7 1022.7 1030.0 1019.7 1016.0 1014.8 1015.5 1017.3 1027.9 1026.9 1032.0 1032.0 DAY-HOUR 8- 6 15- 6 27- 6 6- 6 19- 0 9- 3 28- 6 27- 6 9- 6 24- 6 15- 6 29- 6 MIN. QNH PRESSURE IN HPA 1006.2 1008.0 1003.3 1006.2 1003.1 997.8 997.2 999.7 1004.5 1008.3 1013.6 1009.2 997.2 DAY-HOUR 23- 0 2- 0 24-12 3-15 5-15 20-15 5-15 7-15 5-15 20-12 5-21 24- 0 MEAN QFF PRESSURE IN HPA 1021.3 1019.5 1012.9 1013.1 1008.3 1001.3 998.3 1001.0 1005.4 1014.9 1020.8 1022.3 1011.6 MAX. QFF PRESSURE IN HPA 1031.2 1031.2 1023.8 1030.4 1014.4 1010.7 1006.9 1007.9 1010.8 1027.1 1028.6 1035.9 1035.9 DAY-HOUR 13- 6 15- 6 27- 6 6- 6 19- 0 9- 6 29- 3 27- 6 9- 6 24- 6 25- 6 31- 6 MIN. QFF PRESSURE IN HPA 1008.6 1007.0 1000.7 1001.3 999.1 989.4 988.2 990.8 997.4 1003.0 1010.3 1009.3 988.2 DAY-HOUR 23- 0 2- 0 24- 9 26-18 5-21 20-15 5-15 7-15 5-15 20-12 5-21 24- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 917.9 916.4 913.6 915.8 913.0 908.6 906.6 908.5 911.2 917.5 919.8 919.9 914.1 MAX. QFE PRESSURE IN HPA 924.0 924.4 919.1 924.7 918.4 913.0 911.8 913.0 913.6 923.8 923.8 928.1 928.1 DAY 9 16 27 6 19 9 29 15 22 24 14 29 MIN. QFE PRESSURE IN HPA 906.0 907.6 906.0 909.0 904.5 902.4 899.5 902.1 906.4 910.6 912.9 908.7 899.5 DAY 23 2 24 4 6 20 6 8 5 20 6 24 MEAN QNH PRESSURE IN HPA 1019.2 1017.6 1014.5 1016.9 1013.8 1009.0 1006.9 1009.0 1011.9 1018.8 1021.2 1021.4 1015.0 MAX. QNH PRESSURE IN HPA 1025.8 1026.3 1020.5 1026.6 1019.7 1013.8 1012.5 1013.8 1014.5 1025.6 1025.6 1030.3 1030.3 DAY 9 16 27 6 19 9 29 15 22 24 14 29 MIN. QNH PRESSURE IN HPA 1006.2 1008.0 1006.2 1009.5 1004.6 1002.3 999.1 1002.0 1006.7 1011.2 1013.7 1009.2 999.1 DAY 23 2 24 4 6 20 6 8 5 20 6 24 MEAN QFF PRESSURE IN HPA 1020.8 1019.1 1012.9 1013.2 1008.5 1001.7 998.1 1001.0 1005.4 1014.7 1020.4 1021.7 1011.4 MAX. QFF PRESSURE IN HPA 1028.6 1029.1 1021.7 1025.9 1014.4 1007.7 1004.4 1006.0 1007.8 1023.7 1025.8 1033.1 1033.1 DAY 14 16 27 6 19 9 29 18 30 24 29 29 MIN. QFF PRESSURE IN HPA 1008.6 1007.0 1004.0 1004.0 1000.7 994.5 990.0 993.0 999.4 1006.0 1011.3 1009.3 990.0 DAY 23 2 24 27 6 21 6 8 5 21 6 24 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 918.1 916.8 914.3 916.5 913.9 910.0 908.0 909.8 912.4 918.3 920.1 920.3 914.9 MAX. QFE PRESSURE IN HPA 924.5 924.3 920.1 926.5 918.0 915.0 913.7 913.7 915.2 924.8 924.0 928.1 928.1 DAY 8 15 27 6 19 9 29 27 9 24 25 29 MIN. QFE PRESSURE IN HPA 906.4 909.1 905.0 909.5 906.7 903.4 900.6 903.5 907.5 911.4 913.4 910.5 900.6 DAY 23 2 24 30 4 20 6 7 5 20 6 24 MEAN QNH PRESSURE IN HPA 1019.4 1017.9 1015.3 1017.7 1014.8 1010.5 1008.4 1010.4 1013.2 1019.6 1021.6 1021.8 1015.9 MAX. QNH PRESSURE IN HPA 1026.4 1026.1 1021.6 1028.5 1019.3 1016.0 1014.6 1014.6 1016.2 1026.7 1025.8 1030.3 1030.3 DAY 8 15 27 6 19 9 29 27 9 24 25 29 MIN. QNH PRESSURE IN HPA 1006.7 1009.6 1005.1 1010.0 1007.0 1003.4 1000.3 1003.5 1007.9 1012.1 1014.3 1011.1 1000.3 DAY 23 2 24 30 4 20 6 7 5 20 6 24 MEAN QFF PRESSURE IN HPA 1021.8 1020.1 1014.1 1014.5 1009.9 1003.4 999.8 1002.7 1007.3 1016.5 1021.8 1023.0 1012.9 MAX. QFF PRESSURE IN HPA 1029.5 1029.8 1023.4 1028.7 1014.1 1010.5 1006.9 1007.4 1010.5 1026.5 1027.2 1034.0 1034.0 DAY 13 15 27 6 19 9 29 28 28 24 25 30 MIN. QFF PRESSURE IN HPA 1009.2 1009.6 1002.9 1005.4 1002.4 994.9 991.9 994.6 1001.0 1007.6 1012.9 1011.6 991.9 DAY 23 2 24 30 3 21 6 7 5 21 6 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 919.1 917.7 915.1 917.4 914.4 910.3 908.7 910.5 913.2 919.3 921.1 921.6 915.7 MAX. QFE PRESSURE IN HPA 926.1 925.7 921.1 927.8 918.1 915.0 913.9 914.5 916.2 925.9 925.0 929.7 929.7 DAY 8 15 27 6 12 9 28 27 9 24 15 29 MIN. QFE PRESSURE IN HPA 906.6 910.0 905.1 910.0 907.4 903.0 901.1 904.2 908.4 911.8 915.4 912.6 901.1 DAY 23 2 24 30 4 20 6 7 5 20 6 24 MEAN QNH PRESSURE IN HPA 1020.5 1018.9 1016.1 1018.6 1015.3 1010.9 1009.1 1011.1 1014.1 1020.7 1022.7 1023.2 1016.8 MAX. QNH PRESSURE IN HPA 1028.1 1027.7 1022.7 1030.0 1019.4 1016.0 1014.8 1015.5 1017.3 1027.9 1026.9 1032.0 1032.0 DAY 8 15 27 6 12 9 28 27 9 24 15 29 MIN. QNH PRESSURE IN HPA 1006.9 1010.6 1005.2 1010.6 1007.7 1003.0 1000.9 1004.3 1008.8 1012.5 1016.5 1013.4 1000.9 DAY 23 2 24 30 4 20 6 7 5 20 6 24 MEAN QFF PRESSURE IN HPA 1023.1 1021.0 1014.8 1015.0 1010.1 1003.4 1000.4 1003.1 1007.8 1017.1 1022.6 1024.5 1013.6 MAX. QFF PRESSURE IN HPA 1031.2 1031.2 1023.8 1030.4 1014.3 1010.7 1006.6 1007.9 1010.8 1027.1 1028.6 1035.9 1035.9 DAY 13 15 27 6 12 9 28 27 9 24 25 31 MIN. QFF PRESSURE IN HPA 1010.1 1011.2 1003.0 1005.2 1002.6 994.9 991.9 994.9 1001.9 1008.1 1014.6 1014.0 991.9 DAY 23 2 24 30 3 20 6 7 5 20 6 24 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 918.2 917.0 914.0 916.3 913.1 909.0 907.7 909.3 911.8 917.7 920.0 920.2 914.5 MAX. QFE PRESSURE IN HPA 925.9 925.3 919.9 926.7 917.7 913.7 912.6 913.2 914.8 923.8 924.2 928.8 928.8 DAY 8 15 27 6 18 10 28 16 9 24 27 29 MIN. QFE PRESSURE IN HPA 906.2 910.6 903.4 908.9 905.7 901.1 900.3 903.2 906.7 909.6 915.2 911.9 900.3 DAY 23 2 24 30 3 20 6 7 5 20 8 26 MEAN QNH PRESSURE IN HPA 1019.5 1018.2 1014.9 1017.4 1013.9 1009.5 1008.1 1009.8 1012.5 1019.0 1021.5 1021.6 1015.5 MAX. QNH PRESSURE IN HPA 1027.9 1027.2 1021.4 1028.8 1019.0 1014.6 1013.4 1014.1 1015.8 1025.6 1026.0 1031.0 1031.0 DAY 8 15 27 6 18 10 28 16 9 24 27 29 MIN. QNH PRESSURE IN HPA 1006.4 1011.2 1003.4 1009.4 1005.9 1000.9 1000.0 1003.2 1007.0 1010.1 1016.2 1012.6 1000.0 DAY 23 2 24 30 3 20 6 7 5 20 8 26 MEAN QFF PRESSURE IN HPA 1021.4 1019.9 1013.2 1013.7 1008.5 1002.1 999.3 1001.9 1006.0 1014.9 1020.8 1022.0 1012.0 MAX. QFF PRESSURE IN HPA 1030.2 1030.5 1022.1 1029.1 1013.1 1008.5 1005.5 1006.7 1009.3 1024.0 1026.8 1034.1 1034.1 DAY 8 15 27 6 18 9 28 31 9 24 27 29 MIN. QFF PRESSURE IN HPA 1009.4 1011.4 1000.7 1004.1 1000.3 992.5 990.9 994.0 999.7 1004.5 1013.8 1011.7 990.9 DAY 23 2 24 30 3 20 6 7 5 20 5 26 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 917.0 915.6 912.0 914.3 911.2 907.0 905.7 907.2 909.6 916.0 918.6 918.9 912.7 MAX. QFE PRESSURE IN HPA 924.2 924.0 917.4 923.3 915.8 911.6 910.5 910.8 912.2 922.8 922.5 927.3 927.3 DAY 9 15 26 6 18 10 28 17 9 12 15 29 MIN. QFE PRESSURE IN HPA 906.2 909.5 903.3 907.2 903.5 899.1 898.5 900.5 904.8 907.9 913.4 911.5 898.5 DAY 23 1 24 2 5 20 6 7 5 20 8 24 MEAN QNH PRESSURE IN HPA 1018.2 1016.7 1012.7 1015.2 1011.9 1007.3 1005.9 1007.5 1010.2 1017.2 1019.9 1020.3 1013.6 MAX. QNH PRESSURE IN HPA 1026.0 1025.8 1018.6 1025.1 1016.9 1012.3 1011.1 1011.5 1013.0 1024.5 1024.2 1029.4 1029.4 DAY 9 15 26 6 18 10 28 17 9 12 15 29 MIN. QNH PRESSURE IN HPA 1006.4 1010.0 1003.3 1007.5 1003.5 998.7 998.1 1000.2 1004.9 1008.3 1014.3 1012.2 998.1 DAY 23 1 24 2 5 20 6 7 5 20 8 24 MEAN QFF PRESSURE IN HPA 1019.7 1018.1 1011.0 1011.6 1006.5 999.9 997.2 999.5 1003.5 1013.0 1019.2 1020.5 1010.0 MAX. QFF PRESSURE IN HPA 1028.1 1028.7 1019.2 1025.0 1011.5 1006.1 1003.1 1004.9 1006.4 1021.8 1024.6 1032.1 1032.1 DAY 13 15 26 6 18 10 28 31 9 24 27 29 MIN. QFF PRESSURE IN HPA 1008.8 1009.2 1001.7 1001.6 999.8 990.4 988.8 991.2 997.7 1003.0 1013.2 1011.7 988.8 DAY 23 28 24 26 5 20 6 7 5 20 8 26 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 917.4 915.8 912.0 914.0 910.9 906.2 904.9 906.5 909.3 916.0 919.1 919.4 912.6 MAX. QFE PRESSURE IN HPA 924.5 924.0 917.0 922.6 915.3 910.9 909.8 910.5 911.6 922.2 923.1 927.9 927.9 DAY 9 15 26 6 13 10 28 17 9 23 23 29 MIN. QFE PRESSURE IN HPA 908.4 908.6 906.5 906.0 903.1 898.3 897.7 900.0 904.4 908.2 914.5 911.6 897.7 DAY 23 1 24 3 5 20 5 7 5 20 8 25 MEAN QNH PRESSURE IN HPA 1018.6 1016.9 1012.8 1014.9 1011.5 1006.4 1005.0 1006.7 1009.9 1017.1 1020.4 1020.8 1013.4 MAX. QNH PRESSURE IN HPA 1026.4 1025.8 1018.2 1024.3 1016.3 1011.6 1010.4 1011.1 1012.3 1023.9 1024.8 1030.1 1030.1 DAY 9 15 26 6 13 10 28 17 9 23 23 29 MIN. QNH PRESSURE IN HPA 1008.8 1009.1 1006.8 1006.2 1003.1 997.8 997.2 999.7 1004.5 1008.6 1015.5 1012.3 997.2 DAY 23 1 24 3 5 20 5 7 5 20 8 25 MEAN QFF PRESSURE IN HPA 1020.9 1019.0 1011.5 1011.7 1006.6 999.1 996.5 999.1 1004.0 1014.0 1020.6 1022.0 1010.4 MAX. QFF PRESSURE IN HPA 1029.2 1029.1 1019.2 1024.5 1011.7 1005.4 1003.0 1005.2 1007.1 1023.6 1026.1 1033.7 1033.7 DAY 13 15 26 6 13 10 28 31 28 24 27 29 MIN. QFF PRESSURE IN HPA 1010.7 1009.9 1005.4 1001.6 999.6 989.4 988.2 990.8 997.4 1004.5 1014.1 1012.6 988.2 DAY 3 1 23 3 5 20 5 7 5 20 5 25 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 918.1 916.6 913.4 915.2 912.5 907.2 905.7 907.6 910.4 917.2 919.7 920.0 913.6 MAX. QFE PRESSURE IN HPA 924.5 924.4 918.5 922.9 916.1 912.0 910.5 912.2 912.6 923.5 924.0 928.1 928.1 DAY 9 15 26 6 18 8 28 31 19 23 23 29 MIN. QFE PRESSURE IN HPA 910.1 908.0 907.0 907.5 905.0 899.9 898.7 900.7 905.7 910.3 914.3 911.1 898.7 DAY 24 1 23 26 5 20 5 7 5 20 5 23 MEAN QNH PRESSURE IN HPA 1019.4 1017.8 1014.2 1016.2 1013.3 1007.6 1005.9 1008.0 1011.0 1018.4 1021.2 1021.5 1014.5 MAX. QNH PRESSURE IN HPA 1026.4 1026.3 1019.8 1024.6 1017.2 1012.8 1011.1 1013.0 1013.4 1025.3 1025.8 1030.3 1030.3 DAY 9 15 26 6 18 8 28 31 19 23 23 29 MIN. QNH PRESSURE IN HPA 1010.7 1008.4 1007.3 1007.9 1005.1 999.6 998.3 1000.5 1005.9 1010.9 1015.3 1011.8 998.3 DAY 24 1 23 26 5 20 5 7 5 20 5 23 MEAN QFF PRESSURE IN HPA 1021.9 1019.8 1012.8 1012.6 1008.0 1000.0 997.2 1000.0 1004.8 1014.8 1021.1 1022.9 1011.3 MAX. QFF PRESSURE IN HPA 1030.4 1029.8 1020.7 1024.9 1012.1 1006.5 1003.0 1007.2 1008.4 1023.8 1026.9 1034.3 1034.3 DAY 13 15 26 6 21 8 28 31 30 23 27 29 MIN. QFF PRESSURE IN HPA 1011.9 1009.2 1005.5 1001.3 1001.0 991.0 989.4 991.1 998.8 1006.2 1013.0 1012.1 989.4 DAY 24 1 23 26 5 20 5 7 4 20 5 25 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 917.9 916.6 913.7 915.6 913.0 907.9 906.4 908.2 910.8 917.6 919.7 920.1 913.9 MAX. QFE PRESSURE IN HPA 924.2 924.6 918.9 924.1 916.5 913.2 911.1 913.7 913.9 923.8 923.6 927.7 927.7 DAY 8 17 26 5 21 8 28 13 30 23 27 29 MIN. QFE PRESSURE IN HPA 910.2 907.7 906.2 908.6 903.7 901.3 899.5 900.9 906.2 910.3 912.8 909.1 899.5 DAY 22 1 23 3 5 20 5 7 4 20 5 23 MEAN QNH PRESSURE IN HPA 1019.2 1017.7 1014.7 1016.7 1013.8 1008.3 1006.6 1008.7 1011.5 1018.8 1021.1 1021.6 1014.9 MAX. QNH PRESSURE IN HPA 1026.0 1026.5 1020.3 1025.9 1017.7 1014.1 1011.8 1014.6 1014.8 1025.6 1025.4 1029.8 1029.8 DAY 8 17 26 5 21 8 28 13 30 23 27 29 MIN. QNH PRESSURE IN HPA 1010.8 1008.1 1006.4 1009.1 1003.7 1001.1 999.1 1000.7 1006.4 1010.9 1013.6 1009.6 999.1 DAY 22 1 23 3 5 20 5 7 4 20 5 23 MEAN QFF PRESSURE IN HPA 1021.0 1019.3 1012.9 1012.8 1008.3 1000.8 997.8 1000.7 1004.9 1014.7 1020.5 1022.1 1011.3 MAX. QFF PRESSURE IN HPA 1029.1 1029.6 1021.2 1025.4 1012.6 1008.2 1003.9 1007.1 1009.1 1023.7 1026.1 1033.0 1033.0 DAY 13 15 26 5 21 8 28 31 30 23 25 29 MIN. QFF PRESSURE IN HPA 1012.0 1008.5 1003.8 1003.5 999.1 993.0 990.1 991.1 999.0 1005.8 1010.3 1009.5 990.1 DAY 24 1 23 26 5 20 5 7 5 20 5 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1986-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.9 6.3 11.4 18.2 23.7 29.6 32.2 30.9 25.5 18.6 10.9 5.5 18.1 MINIMUN AIR TEMPERATURE (C) -1.5 0.1 4.5 10.3 15.1 20.0 23.0 21.1 15.4 9.9 4.0 -0.1 10.2 DAYS WITH MINIMUM TEMP. >=21 0.0 0.0 0.0 0.0 0.7 11.9 24.6 17.4 0.8 0.1 0.0 0.0 55.5 DAYS WITH MINIMUM TEMP. <=-4 7.8 3.7 0.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 4.9 18.6 DAYS WITH FREEZING MIN.<= 0 21.9 14.8 4.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.5 16.9 63.5 TEMPERATURE RECORDS LOWEST(C) -12.6 -11.2 -11.0 0.4 5.4 8.0 15.0 13.5 6.5 0.6 -7.0 -10.5 -12.6 YEAR-DAY 93-11 97- 8 92-11 88- 4 92- 5 94- 6 87-29 91-26 94-22 93-10 92-28 92-29 93-11 MAXIMUM AIR TEMPERATURE (C) 10.5 13.4 18.3 26.0 31.6 37.8 40.1 39.4 34.9 27.4 18.8 12.3 25.9 DAYS WITH MAXIMUM TEMP. >=30 0.0 0.0 0.1 6.6 21.9 29.9 30.9 30.9 27.7 9.8 0.0 0.0 157.8 DAYS WITH MAXIMUM TEMP. <= 0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.3 TEMPERATURE RECORDS HIGHEST(C) 23.4 24.0 30.0 36.0 41.5 44.2 46.0 45.5 41.0 36.6 28.4 22.3 46.0 YEAR-DAY 87-31 2-26 1-31 98-16 99-31 89-30 3-17 97-14 87- 6 95- 4 86- 1 5- 7 3-17 DIF. BETWEEN (MAX.-MIN.) (C) 12.0 13.3 13.8 15.7 16.5 17.8 17.1 18.3 19.5 17.5 14.8 12.4 15.7 MEAN DAILY TEMP. (MDT) (C) 4.5 6.7 11.4 18.1 23.3 28.9 31.6 30.3 25.1 18.7 11.4 6.1 18.0 STANDARD DEVIATION OF MDT(C) 1.74 1.98 1.89 1.18 1.38 0.84 1.02 0.94 1.20 1.64 1.17 1.45 1.37 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.1 10.9 87.6 236.0 327.5 287.1 127.5 13.9 0.0 0.0 1090.6 HEATING DEG. DAYS(BASE 18 0C) 418.6 317.9 205.3 40.3 3.2 0.0 0.0 0.0 0.1 31.5 199.0 367.9 1583.8 DEWPOINT (MEAN C) -2.8 -2.8 -0.5 2.8 4.1 4.8 7.0 6.4 3.0 2.0 0.1 -1.3 1.9 MIXING RATIO (G/KG) 3.50 3.57 4.31 5.46 5.97 6.28 7.21 6.97 5.45 5.05 4.47 3.98 5.18 VAPOUR PRESSURE (HPA) 5.14 5.23 6.29 7.93 8.67 9.06 10.38 10.05 7.91 7.38 6.54 5.84 7.53 SATURATION DEF. (HPA) 3.38 4.98 8.08 14.45 22.60 34.76 40.07 37.16 27.27 15.72 7.47 3.71 18.30 RELATIVE HUMIDITY (MEAN %) 65 57 50 42 33 24 23 24 26 37 52 65 41 RELATIVE HUMIDITY (MAX. %) 83 78 73 66 55 40 39 40 43 56 73 83 61 RELATIVE HUMIDITY (MIN. %) 42 34 29 22 18 13 13 14 14 21 31 43 25 RELATIVE HUMIDITY (MEAN% 03UTC) 79 74 68 61 51 38 37 39 42 53 69 80 58 RELATIVE HUMIDITY (MEAN% 09UTC) 50 41 35 27 22 17 17 17 17 25 36 50 30 RELATIVE HUMIDITY (MEAN% 15UTC) 58 47 39 30 23 15 14 15 18 29 44 58 33 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 25.9 21.7 28.1 19.6 11.8 1.4 0.9 0.4 0.5 6.3 15.2 19.3 151.1 DAYS WITH PRECIPITATION >=10 0.6 0.7 0.6 0.5 0.3 0.0 0.0 0.0 0.0 0.0 0.5 0.6 3.8 DAYS WITH PRECIPITATION >= 5 1.8 1.6 1.9 1.2 0.8 0.1 0.0 0.1 0.0 0.5 1.0 1.3 10.3 DAYS WITH PRECIPITATION >= 1 4.4 3.9 4.7 3.7 2.2 0.3 0.3 0.2 0.2 1.7 2.6 3.1 27.3 DAYS WITH PRECIPITATION 6.5 6.4 7.5 6.1 4.6 0.6 0.8 0.3 0.3 2.7 4.1 5.3 45.2 GREATEST DAILY PRECIPITATION 25.0 21.0 40.0 26.0 22.0 8.0 4.0 5.0 3.8 9.0 35.0 28.0 40.0 YEAR-DAY 0-28 94- 1 86- 8 2-12 86- 4 89- 7 88-11 98- 2 87-21 94-18 99- 8 0- 1 86 DAY WITH THUNDER STORM 0.0 0.0 0.2 1.1 1.5 0.3 0.1 0.0 0.3 0.4 0.2 0.0 4.1 DAYS WITH SNOW OR SLEET 3.1 1.5 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.9 6.1 DAYS WITH DUST 0.9 0.8 1.1 1.5 1.3 0.9 1.4 0.7 0.5 0.2 0.9 0.5 10.7 WIND DIRECTION (PREVAILING) 270 270 270 270 270 90 90 90 90 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 8.1 8.5 9.3 8.8 9.0 9.2 9.9 9.3 7.9 7.1 7.4 7.6 8.3 PREVAILING WIND PERCENT 18.2 22.8 21.9 21.7 21.7 20.0 35.4 33.2 17.6 12.4 12.1 13.0 14.8 CALMS PERCENT OF WIND 66.7 53.4 49.1 43.0 39.9 39.1 40.8 47.3 56.7 62.2 69.8 73.2 53.4 NO. OF WIND OBSERVATION 248.0 225.8 245.0 240.0 244.5 240.0 247.9 248.0 240.0 247.7 240.0 248.0 2914.9 VECTOR WIND DIRECTION (MEAN) 283 286 285 288 295 25 88 88 66 299 288 282 314 VECTOR WIND MAGNITUDE(KNOTS) 1.8 2.6 2.4 2.7 2.4 0.8 3.7 3.4 0.7 0.6 1.0 1.1 0.7 WIND STEADINESES (MEAN %) 72.0 66.7 55.8 52.9 45.3 14.8 68.5 75.6 21.2 22.2 45.5 57.9 17.9 WIND SPEED (MEAN KNOTS) 2.5 3.9 4.3 5.1 5.3 5.4 5.4 4.5 3.3 2.7 2.2 1.9 3.9 FASTEST WIND DIRECTION 280 290 280 250 310 270 110 30 210 240 300 280 250 FASTEST WIND SPEED (KNOTS) 29 41 39 49 43 33 31 29 29 37 33 31 49 YEAR-DAY 87-30 90-16 90-14 0-21 90-12 97-16 88- 6 93- 9 95-25 86-23 95-25 89- 5 0 DAYS WITH SKY CLEAR (0-2)/8 14.9 13.6 12.8 11.0 18.0 26.7 27.9 28.3 28.4 22.6 16.6 13.8 234.6 DAYS WITH P.CLOUDY (3-6)/8 10.4 9.6 11.7 14.7 10.4 3.0 3.0 2.7 1.5 6.8 9.7 11.5 95.0 DAYS WITH CLOUDY (7-8)/8 5.7 4.9 6.4 4.3 2.5 0.3 0.0 0.0 0.1 1.5 3.7 5.6 35.0 DAYS WITH VISIBILITY =< 2 KM 2.4 1.1 0.6 0.3 0.4 0.1 0.1 0.0 0.1 0.2 0.6 2.0 7.9 DURATION OF SUNSHINE HOURS 186.2 198.6 220.7 232.2 301.8 355.6 358.5 348.6 311.3 265.9 202.4 170.6 3152.4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1986-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 918.1 916.3 914.2 913.2 912.1 908.0 906.6 908.4 912.4 917.3 918.8 919.3 913.7 MAX. QFE PRESSURE IN HPA 931.8 931.1 929.8 929.0 923.7 919.6 917.0 920.0 925.5 928.1 933.0 932.6 933.0 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 0-30 92-31 94-23 90-19 87-30 87- 1 87-30 MIN. QFE PRESSURE IN HPA 904.6 900.2 900.6 900.7 898.6 897.6 896.3 898.6 902.2 906.6 902.9 900.8 896.3 YEAR-DAY 3-28 1-21 97-29 90-15 4-13 91-11 95-16 94- 2 0- 1 96-27 4-23 88-27 95-16 MEAN QNH PRESSURE IN HPA 1019.4 1017.5 1015.1 1014.1 1012.8 1008.4 1006.9 1008.9 1013.1 1018.5 1020.2 1020.7 1014.6 MAX. QNH PRESSURE IN HPA 1034.3 1033.5 1032.1 1031.3 1025.5 1021.0 1018.2 1021.5 1027.5 1030.3 1035.6 1035.2 1035.6 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 0-30 92-31 94-23 90-19 87-30 87- 1 87-30 MIN. QNH PRESSURE IN HPA 1004.7 999.9 1000.3 1000.5 998.2 997.1 995.7 998.2 1002.1 1006.9 1002.8 1000.6 995.7 YEAR-DAY 3-28 1-21 97-29 90-15 4-13 91-11 95-16 94- 2 0- 1 96-27 4-23 88-27 95-16 MEAN QFF PRESSURE IN HPA 1021.6 1018.6 1014.4 1010.8 1007.7 1001.1 998.7 1001.1 1007.3 1015.1 1019.6 1022.2 1011.5 MAX. QFF PRESSURE IN HPA 1037.1 1038.1 1035.6 1031.1 1023.2 1015.4 1010.5 1016.3 1023.8 1029.2 1039.3 1039.2 1039.3 YEAR-DAY 92-10 89- 4 92-12 94- 5 3- 2 93-23 87-29 92-31 94-23 90-19 87-30 90-28 87-30 MIN. QFF PRESSURE IN HPA 1005.2 999.3 998.3 996.5 993.2 989.4 986.7 990.0 994.9 1001.0 1000.7 1002.7 986.7 YEAR-DAY 97-16 1-21 1-25 90-15 99-20 5-20 95-16 94- 1 0- 1 98- 1 4-23 94- 4 95-16 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 918.1 916.3 914.0 913.3 912.4 908.3 906.7 908.5 912.4 917.3 918.8 919.3 913.8 MAX. QFE PRESSURE IN HPA 928.6 928.8 927.3 924.7 920.9 918.0 916.0 917.4 922.9 925.8 931.5 931.3 931.5 YEAR-DAY 92- 5 98-23 2-11 5- 6 3- 2 93-23 0-31 92-31 94-23 90-16 87-30 87- 1 87-30 MIN. QFE PRESSURE IN HPA 904.8 904.6 900.8 903.0 901.1 899.3 898.6 900.6 903.0 909.0 905.4 903.2 898.6 YEAR-DAY 98-13 98- 8 87-14 92-18 4-13 99-25 97-16 94- 2 0- 1 96-27 94-26 94- 4 97-16 MEAN QNH PRESSURE IN HPA 1019.4 1017.4 1015.0 1014.2 1013.2 1008.7 1007.0 1008.9 1013.2 1018.5 1020.1 1020.7 1014.7 MAX. QNH PRESSURE IN HPA 1030.8 1031.0 1029.4 1026.6 1022.4 1019.3 1017.1 1018.6 1024.6 1027.8 1034.0 1033.8 1034.0 YEAR-DAY 92- 5 98-23 2-11 5- 6 3- 2 93-23 0-31 92-31 94-23 90-16 87-30 87- 1 87-30 MIN. QNH PRESSURE IN HPA 1004.9 1004.7 1000.6 1003.0 1000.9 998.9 998.2 1000.3 1003.0 1009.5 1005.6 1003.2 998.2 YEAR-DAY 98-13 98- 8 87-14 92-18 4-13 99-25 97-16 94- 2 0- 1 96-27 94-26 94- 4 97-16 MEAN QFF PRESSURE IN HPA 1021.1 1018.2 1013.9 1010.7 1007.9 1001.4 998.7 1001.0 1007.1 1014.7 1019.1 1021.7 1011.3 MAX. QFF PRESSURE IN HPA 1035.4 1034.2 1031.9 1025.9 1019.7 1013.7 1009.9 1013.2 1021.1 1027.8 1036.5 1036.4 1036.5 YEAR-DAY 92- 5 91-15 92-12 94- 6 92- 3 93-23 0-31 92-31 94-23 87-29 87-30 86- 7 87-30 MIN. QFF PRESSURE IN HPA 1007.0 1002.9 998.3 998.8 995.4 991.3 988.9 991.0 995.5 1004.0 1004.6 1002.7 988.9 YEAR-DAY 98-13 98- 8 1-25 4-17 4-13 99-25 97-16 94- 1 0- 1 98- 1 94-26 94- 4 97-16 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 918.3 916.7 914.9 914.2 913.3 909.7 908.2 910.0 913.6 918.1 919.3 919.5 914.6 MAX. QFE PRESSURE IN HPA 929.8 929.6 929.3 926.5 922.8 919.6 916.5 918.8 924.1 926.4 931.8 931.7 931.8 YEAR-DAY 99- 2 98-23 2-11 5- 6 3- 2 93-23 0-31 92-31 94-23 90-16 87-30 87- 1 87-30 MIN. QFE PRESSURE IN HPA 905.4 904.8 902.4 904.6 902.3 900.2 900.6 901.6 904.0 909.0 906.6 900.8 900.2 YEAR-DAY 98-13 98- 8 87-14 92-18 4-13 99-25 95-16 94- 2 0- 1 96-27 93-11 88-27 99-25 MEAN QNH PRESSURE IN HPA 1019.6 1017.9 1015.9 1015.1 1014.1 1010.2 1008.6 1010.5 1014.5 1019.4 1020.7 1020.9 1015.6 MAX. QNH PRESSURE IN HPA 1032.1 1031.9 1031.6 1028.5 1024.5 1021.0 1017.7 1020.2 1025.9 1028.4 1034.3 1034.2 1034.3 YEAR-DAY 99- 2 98-23 2-11 5- 6 3- 2 93-23 0-31 92-31 94-23 90-16 87-30 87- 1 87-30 MIN. QNH PRESSURE IN HPA 1005.6 1004.9 1002.3 1004.7 1002.2 999.9 1000.3 1001.4 1004.0 1009.5 1006.9 1000.6 999.9 YEAR-DAY 98-13 98- 8 87-14 92-18 4-13 99-25 95-16 94- 2 0- 1 96-27 93-11 88-27 99-25 MEAN QFF PRESSURE IN HPA 1022.1 1019.5 1015.5 1012.2 1009.2 1003.2 1000.7 1003.2 1009.2 1016.6 1020.7 1022.9 1012.9 MAX. QFF PRESSURE IN HPA 1035.7 1036.1 1034.3 1028.7 1022.0 1015.4 1010.5 1015.4 1023.5 1028.3 1038.0 1037.9 1038.0 YEAR-DAY 92-10 91-15 92-12 5- 6 3- 2 93-23 87-29 92-31 94-23 87-29 87-30 87- 1 87-30 MIN. QFF PRESSURE IN HPA 1007.1 1003.3 999.8 1001.1 996.9 992.4 991.5 993.5 997.3 1005.2 1004.8 1003.5 991.5 YEAR-DAY 97-16 98- 8 1-25 92-18 4-13 99-25 95-16 94- 2 0- 1 98- 1 93-11 88-27 95-16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1986-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 919.5 917.9 915.9 915.0 913.8 910.1 908.9 910.8 914.6 919.3 920.5 920.7 915.6 MAX. QFE PRESSURE IN HPA 931.8 931.1 929.8 929.0 923.7 919.5 917.0 920.0 925.5 928.1 933.0 932.6 933.0 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 0-30 92-31 94-23 90-19 87-30 87- 1 87-30 MIN. QFE PRESSURE IN HPA 905.9 904.8 903.7 905.0 901.7 900.4 900.9 902.8 905.4 910.0 907.0 901.3 900.4 YEAR-DAY 98-13 1-21 1-25 2- 4 4-13 99-25 95-16 94- 2 0- 1 96-27 1-18 88-27 99-25 MEAN QNH PRESSURE IN HPA 1021.0 1019.2 1017.0 1016.0 1014.8 1010.7 1009.3 1011.5 1015.6 1020.7 1022.0 1022.3 1016.7 MAX. QNH PRESSURE IN HPA 1034.3 1033.5 1032.1 1031.3 1025.5 1020.9 1018.2 1021.5 1027.5 1030.3 1035.6 1035.2 1035.6 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 0-30 92-31 94-23 90-19 87-30 87- 1 87-30 MIN. QNH PRESSURE IN HPA 1006.1 1004.9 1003.7 1005.1 1001.5 1000.1 1000.7 1002.7 1005.6 1010.6 1007.3 1001.1 1000.1 YEAR-DAY 98-13 1-21 1-25 2- 4 4-13 99-25 95-16 94- 2 0- 1 96-27 1-18 88-27 99-25 MEAN QFF PRESSURE IN HPA 1023.5 1020.7 1016.3 1012.7 1009.6 1003.4 1001.1 1003.6 1009.7 1017.4 1021.7 1024.2 1013.7 MAX. QFF PRESSURE IN HPA 1037.1 1038.1 1035.6 1031.1 1023.2 1015.1 1010.2 1016.3 1023.8 1029.2 1039.3 1039.2 1039.3 YEAR-DAY 92-10 89- 4 92-12 94- 5 3- 2 93-23 0-31 92-31 94-23 90-19 87-30 90-28 87-30 MIN. QFF PRESSURE IN HPA 1009.2 1004.8 1000.6 1002.4 995.1 991.7 991.5 993.8 997.9 1006.7 1004.9 1004.3 991.5 YEAR-DAY 98-13 1-21 1-25 90-29 4-13 99-25 95-16 94- 2 0- 1 96-27 1-18 88-27 95-16 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 918.4 916.8 914.7 913.6 912.4 908.6 907.5 909.3 913.0 917.6 919.0 919.4 914.2 MAX. QFE PRESSURE IN HPA 930.8 930.1 927.8 928.0 922.4 917.5 915.7 918.0 923.6 926.3 932.4 931.0 932.4 YEAR-DAY 99- 2 91-15 92-12 94- 5 3- 2 93-23 0-30 92-31 94-23 90-19 87-30 87- 1 87-30 MIN. QFE PRESSURE IN HPA 905.9 902.6 902.4 904.3 899.5 898.9 899.4 901.1 903.8 907.8 905.6 902.1 898.9 YEAR-DAY 98-13 1-21 89-29 2- 3 4-13 99-25 95-16 94- 2 0- 1 96-27 1-18 88-27 99-25 MEAN QNH PRESSURE IN HPA 1019.7 1018.0 1015.7 1014.5 1013.2 1009.1 1007.8 1009.8 1013.8 1018.9 1020.4 1020.8 1015.1 MAX. QNH PRESSURE IN HPA 1033.2 1032.5 1030.0 1030.2 1024.1 1018.7 1016.8 1019.3 1025.4 1028.3 1035.0 1033.4 1035.0 YEAR-DAY 99- 2 91-15 92-12 94- 5 3- 2 93-23 0-30 92-31 94-23 90-19 87-30 87- 1 87-30 MIN. QNH PRESSURE IN HPA 1006.1 1002.5 1002.3 1004.4 999.1 998.5 999.0 1000.9 1003.8 1008.2 1005.8 1002.0 998.5 YEAR-DAY 98-13 1-21 89-29 2- 3 4-13 99-25 95-16 94- 2 0- 1 96-27 1-18 88-27 99-25 MEAN QFF PRESSURE IN HPA 1021.6 1018.9 1014.5 1011.0 1007.9 1001.7 999.5 1001.8 1007.7 1015.1 1019.4 1022.0 1011.7 MAX. QFF PRESSURE IN HPA 1035.5 1036.3 1034.1 1030.0 1022.3 1012.9 1008.8 1014.0 1021.6 1028.1 1037.3 1036.6 1037.3 YEAR-DAY 99- 2 89- 4 92-12 94- 5 92- 2 93-22 0-30 92-31 94-23 87-28 87-30 90-28 87-30 MIN. QFF PRESSURE IN HPA 1007.6 1001.9 999.4 999.2 993.3 990.8 989.7 991.7 996.2 1003.3 1003.5 1003.9 989.7 YEAR-DAY 97-17 1-21 1-25 1-26 4-13 99-25 95-16 94- 2 0- 1 98- 1 1-18 88-27 95-16 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 917.0 915.0 912.8 911.8 910.6 906.5 905.3 907.0 910.8 915.8 917.6 918.1 912.4 MAX. QFE PRESSURE IN HPA 929.0 928.5 926.1 925.0 920.4 915.6 914.0 916.2 922.5 925.9 931.1 928.9 931.1 YEAR-DAY 99- 2 91-15 92-12 94- 5 3- 2 93-22 0-30 92-31 94-23 87-28 87-30 87- 1 87-30 MIN. QFE PRESSURE IN HPA 905.2 900.2 900.6 901.2 898.6 898.0 897.0 899.4 902.2 906.6 902.9 903.0 897.0 YEAR-DAY 0-21 1-21 97-29 2- 3 4-13 99-25 95-16 94- 2 0- 1 96-27 4-23 88-26 95-16 MEAN QNH PRESSURE IN HPA 1018.2 1016.0 1013.6 1012.5 1011.2 1006.8 1005.5 1007.3 1011.5 1016.9 1018.8 1019.4 1013.1 MAX. QNH PRESSURE IN HPA 1031.3 1030.7 1028.1 1026.9 1021.9 1016.7 1014.9 1017.3 1024.2 1027.9 1033.5 1031.2 1033.5 YEAR-DAY 99- 2 91-15 92-12 94- 5 3- 2 93-22 0-30 92-31 94-23 87-28 87-30 87- 1 87-30 MIN. QNH PRESSURE IN HPA 1005.4 999.9 1000.3 1001.0 998.2 997.5 996.4 999.0 1002.1 1006.9 1002.8 1003.0 996.4 YEAR-DAY 0-21 1-21 97-29 2- 3 4-13 99-25 95-16 94- 2 0- 1 96-27 4-23 88-26 95-16 MEAN QFF PRESSURE IN HPA 1019.9 1016.8 1012.4 1009.0 1006.0 999.5 997.2 999.4 1005.3 1013.2 1017.8 1020.4 1009.8 MAX. QFF PRESSURE IN HPA 1033.9 1034.3 1031.9 1026.6 1020.5 1010.7 1007.4 1012.2 1020.7 1028.1 1035.6 1034.7 1035.6 YEAR-DAY 99- 2 91-15 92-12 94- 5 92- 2 93-22 0-30 92-31 94-23 87-28 87-30 90-28 87-30 MIN. QFF PRESSURE IN HPA 1005.2 999.3 998.5 996.5 993.2 989.7 986.9 990.0 994.9 1001.0 1000.7 1004.6 986.9 YEAR-DAY 97-16 1-21 97- 7 90-15 99-20 99-25 95-16 94- 1 0- 1 98- 1 4-23 94- 4 95-16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1986-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 917.5 915.3 912.9 911.7 910.3 905.8 904.5 906.3 910.4 916.0 918.0 918.7 912.3 MAX. QFE PRESSURE IN HPA 929.4 927.7 925.4 924.6 920.6 914.6 913.5 915.6 921.7 926.3 931.1 929.9 931.1 YEAR-DAY 99- 2 91-15 92-12 94- 5 92- 2 93-22 0-30 92-31 94-23 87-28 87-30 3-11 87-30 MIN. QFE PRESSURE IN HPA 904.6 901.5 901.0 900.7 899.5 897.6 896.3 898.6 902.2 907.8 904.7 903.7 896.3 YEAR-DAY 3-28 1-21 89-29 90-15 4-15 91-11 95-16 94- 2 0- 1 87- 4 1-18 88-26 95-16 MEAN QNH PRESSURE IN HPA 1018.7 1016.4 1013.7 1012.4 1010.9 1006.1 1004.6 1006.6 1011.1 1017.1 1019.3 1020.0 1013.1 MAX. QNH PRESSURE IN HPA 1031.7 1029.8 1027.3 1026.5 1022.1 1015.6 1014.4 1016.7 1023.3 1028.3 1033.5 1032.2 1033.5 YEAR-DAY 99- 2 91-15 92-12 94- 5 92- 2 93-22 0-30 92-31 94-23 87-28 87-30 3-11 87-30 MIN. QNH PRESSURE IN HPA 1004.7 1001.3 1000.8 1000.5 999.1 997.1 995.7 998.2 1002.1 1008.2 1004.8 1003.7 995.7 YEAR-DAY 3-28 1-21 89-29 90-15 4-15 91-11 95-16 94- 2 0- 1 87- 4 1-18 88-26 95-16 MEAN QFF PRESSURE IN HPA 1021.2 1017.9 1013.3 1009.5 1005.9 999.0 996.7 999.2 1005.7 1014.3 1019.3 1021.9 1010.3 MAX. QFF PRESSURE IN HPA 1035.4 1034.2 1032.1 1026.8 1022.1 1010.0 1007.6 1012.1 1020.8 1028.6 1036.9 1036.0 1036.9 YEAR-DAY 99- 2 91-15 92-12 94- 5 92- 2 1-12 0-30 92-31 94-23 87-28 87-30 90-28 87-30 MIN. QFF PRESSURE IN HPA 1006.6 1001.9 1000.0 996.9 993.9 989.4 986.7 990.1 995.5 1003.5 1003.1 1005.6 986.7 YEAR-DAY 97-16 99-20 89-29 90-15 99-20 5-20 95-16 94- 2 0- 1 98- 1 1-18 94- 3 95-16 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 918.2 916.3 914.0 913.1 911.9 907.2 905.7 907.6 911.8 917.1 918.8 919.4 913.4 MAX. QFE PRESSURE IN HPA 929.4 928.1 925.8 924.6 921.0 916.3 914.0 917.0 922.4 926.6 931.6 930.6 931.6 YEAR-DAY 99- 2 98-22 92-12 94- 5 92- 2 93-22 0-30 92-31 94-22 87-28 96-18 3-11 96-18 MIN. QFE PRESSURE IN HPA 905.8 903.6 902.9 903.2 900.5 899.1 897.2 899.4 903.2 909.2 904.9 903.0 897.2 YEAR-DAY 3-28 92-24 87-13 90-15 4-15 99-24 95-16 89- 1 0- 1 98- 1 1-18 94- 3 95-16 MEAN QNH PRESSURE IN HPA 1019.5 1017.4 1014.9 1014.0 1012.7 1007.5 1005.9 1007.9 1012.5 1018.3 1020.2 1020.8 1014.3 MAX. QNH PRESSURE IN HPA 1031.7 1030.3 1027.8 1026.5 1022.6 1017.4 1014.9 1018.2 1024.1 1028.6 1034.1 1033.0 1034.1 YEAR-DAY 99- 2 98-22 92-12 94- 5 92- 2 93-22 0-30 92-31 94-22 87-28 96-18 3-11 96-18 MIN. QNH PRESSURE IN HPA 1006.0 1003.6 1002.8 1003.2 1000.2 998.7 996.6 999.0 1003.2 1009.7 1005.0 1003.0 996.6 YEAR-DAY 3-28 92-24 87-13 90-15 4-15 99-24 95-16 89- 1 0- 1 98- 1 1-18 94- 3 95-16 MEAN QFF PRESSURE IN HPA 1022.0 1018.9 1014.1 1010.6 1007.3 1000.1 997.7 1000.1 1006.7 1015.0 1019.9 1022.7 1011.3 MAX. QFF PRESSURE IN HPA 1036.1 1035.0 1032.4 1026.7 1022.5 1011.7 1007.9 1013.0 1020.4 1028.8 1037.3 1036.4 1037.3 YEAR-DAY 92- 9 89- 3 92-12 94- 5 92- 2 93-22 87-28 92-31 94-23 87-28 87-30 86- 6 87-30 MIN. QFF PRESSURE IN HPA 1007.9 1002.5 1000.6 998.7 995.0 991.0 987.0 990.6 996.0 1004.7 1003.3 1003.6 987.0 YEAR-DAY 3-28 99-20 1-24 90-15 1-29 99-24 95-16 94- 1 0- 1 87- 3 1-18 94- 3 95-16 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 918.2 916.4 914.1 913.3 912.3 907.8 906.3 908.1 912.2 917.3 918.9 919.3 913.7 MAX. QFE PRESSURE IN HPA 929.0 928.7 927.7 924.6 920.9 917.1 915.0 917.3 922.5 926.7 931.5 931.1 931.5 YEAR-DAY 99- 2 98-22 2-10 94- 5 3- 1 93-22 0-30 92-31 94-22 87-28 87-29 3-11 87-29 MIN. QFE PRESSURE IN HPA 905.0 904.2 900.8 903.8 900.5 898.7 898.1 900.3 904.0 909.7 904.9 903.2 898.1 YEAR-DAY 98-12 99-20 87-13 92-17 4-15 99-24 95-16 94- 1 0- 1 88-30 94-25 94- 3 95-16 MEAN QNH PRESSURE IN HPA 1019.5 1017.5 1015.1 1014.2 1013.1 1008.1 1006.6 1008.5 1013.0 1018.5 1020.3 1020.7 1014.6 MAX. QNH PRESSURE IN HPA 1031.3 1030.9 1029.8 1026.5 1022.4 1018.3 1016.0 1018.5 1024.2 1028.8 1034.0 1033.5 1034.0 YEAR-DAY 99- 2 98-22 2-10 94- 5 3- 1 93-22 0-30 92-31 94-22 87-28 87-29 3-11 87-29 MIN. QNH PRESSURE IN HPA 1005.1 1004.3 1000.6 1003.8 1000.2 998.3 997.6 1000.0 1004.0 1010.2 1005.0 1003.2 997.6 YEAR-DAY 98-12 99-20 87-13 92-17 4-15 99-24 95-16 94- 1 0- 1 88-30 94-25 94- 3 95-16 MEAN QFF PRESSURE IN HPA 1021.3 1018.4 1013.9 1010.6 1007.6 1000.7 998.3 1000.6 1006.9 1014.8 1019.3 1021.9 1011.2 MAX. QFF PRESSURE IN HPA 1035.4 1034.2 1031.2 1026.6 1021.7 1012.5 1008.4 1013.9 1020.7 1028.9 1036.7 1036.0 1036.7 YEAR-DAY 92- 4 89- 3 92-11 94- 5 92- 2 93-22 0-30 92-31 94-22 87-28 87-30 86- 6 87-30 MIN. QFF PRESSURE IN HPA 1007.4 1002.8 999.6 999.6 994.9 990.9 987.8 990.8 996.7 1004.6 1003.7 1002.9 987.8 YEAR-DAY 3-15 99-20 1-24 4-16 4-15 99-24 97-15 94- 1 0- 1 98- 1 94-25 94- 3 97-15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 1 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 9.1 17.8 22.3 28.7 31.7 28.9 24.4 19.9 9.8 3.6 ****** 1987 5.7 8.0 11.1 18.0 25.1 30.6 31.0 30.8 25.2 14.8 11.6 6.2 18.2 1988 4.5 6.4 12.1 17.2 25.0 29.8 32.1 30.9 25.4 18.2 11.3 6.1 18.3 1989 0.8 1.2 11.7 19.6 24.0 30.7 33.1 31.3 25.2 19.6 12.0 7.1 18.0 1990 2.7 5.4 11.1 17.9 25.1 30.9 32.2 31.5 26.3 18.5 12.3 5.3 18.3 1991 4.1 4.4 10.6 19.1 24.3 29.2 32.1 29.6 25.1 18.4 11.0 3.9 17.6 1992 0.8 4.5 6.9 16.4 19.3 27.9 32.4 28.5 23.0 17.5 10.9 4.9 16.1 1993 0.9 5.6 9.7 17.8 22.4 28.7 31.1 30.0 25.9 16.4 8.2 6.0 16.9 1994 5.8 6.2 13.0 18.7 23.5 29.0 32.3 31.4 23.3 17.7 11.9 3.1 18.0 1995 5.8 8.0 12.6 17.8 22.8 28.2 33.0 31.9 25.0 17.1 11.0 3.2 18.0 1996 2.1 6.9 9.0 16.2 23.9 29.3 31.2 30.4 27.1 17.4 9.6 7.0 17.5 1997 5.5 5.2 9.8 17.8 23.8 30.3 34.1 31.9 25.3 20.7 10.8 6.2 18.5 1998 3.1 6.1 11.5 19.0 23.7 30.9 32.8 31.4 26.2 18.1 13.2 7.6 18.6 1999 4.8 9.0 11.6 18.4 25.5 31.1 30.8 31.9 25.7 20.2 9.8 6.1 18.7 2000 3.8 6.3 11.4 21.3 26.5 29.4 31.9 31.0 26.5 16.9 9.8 5.7 18.4 2001 3.6 6.8 14.1 21.0 24.9 29.6 31.7 30.9 26.2 19.3 11.1 7.4 18.9 2002 4.4 9.2 13.4 16.9 23.6 29.2 32.1 31.7 27.2 21.1 11.3 4.0 18.7 2003 5.6 6.8 10.6 17.8 22.5 28.9 34.2 31.1 25.0 21.2 10.1 5.5 18.3 2004 5.7 9.5 14.6 17.1 23.0 30.8 31.2 32.2 25.9 19.1 11.8 4.3 18.8 2005 4.0 4.6 13.3 19.1 23.6 29.8 33.8 31.1 26.9 19.6 10.2 7.3 18.6 MEAN 3.9 6.3 11.4 18.2 23.7 29.6 32.2 30.9 25.5 18.6 10.9 5.5 18.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 2 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF MINIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 2.4 11.2 14.4 19.4 21.9 19.6 13.7 11.2 4.2 -1.1 ****** 1987 -1.7 1.2 4.9 8.9 16.2 20.7 21.8 21.0 16.0 8.7 4.5 0.3 10.2 1988 -1.0 0.8 4.8 10.1 15.7 20.0 22.9 22.1 15.1 9.1 3.3 -0.8 10.2 1989 -4.7 -4.0 5.1 9.7 14.2 19.5 23.5 21.0 14.7 9.9 4.2 1.6 9.6 1990 -1.9 0.2 4.0 9.1 15.1 19.9 23.3 21.8 14.6 9.9 3.3 -1.7 9.8 1991 -0.9 -1.3 5.0 10.2 14.2 19.4 22.4 18.9 14.8 9.9 2.8 -1.5 9.5 1992 -4.1 -1.8 0.9 9.3 13.0 19.1 22.1 19.6 11.9 8.2 3.4 -0.6 8.4 1993 -3.7 0.4 3.1 10.4 14.5 18.8 21.8 20.7 15.5 7.9 2.6 0.1 9.3 1994 0.2 0.5 5.9 10.4 15.6 19.1 22.9 21.6 13.5 10.0 6.2 -2.0 10.3 1995 -1.2 1.1 4.7 10.1 15.2 19.3 23.2 21.0 14.9 7.9 2.4 -2.7 9.7 1996 -2.4 2.1 4.4 9.8 15.6 20.2 22.5 20.2 17.1 8.2 2.1 -0.1 10.0 1997 -1.8 -3.1 3.0 9.3 14.8 21.4 24.7 20.6 15.3 11.9 4.4 0.8 10.1 1998 -1.6 0.3 5.0 10.6 15.5 20.9 24.1 22.1 16.0 8.7 4.6 0.2 10.6 1999 -0.4 1.5 4.1 9.4 15.2 20.5 21.6 21.4 15.6 11.2 4.2 0.4 10.4 2000 -1.9 -0.7 3.3 12.0 16.9 19.0 22.5 20.9 16.7 9.2 4.3 2.0 10.3 2001 -1.9 0.2 6.0 12.1 15.8 19.6 23.1 20.6 16.9 11.1 4.0 2.7 10.9 2002 -0.6 2.1 5.0 10.5 14.5 19.7 23.2 22.0 16.7 11.8 5.2 -0.3 10.8 2003 0.2 1.1 4.1 11.3 14.4 19.7 25.5 21.6 15.0 12.1 3.2 1.1 10.8 2004 1.3 2.7 7.5 10.5 15.4 22.3 22.7 23.2 16.4 10.5 6.1 -0.6 11.5 2005 -0.7 -0.6 6.6 11.3 15.3 20.6 25.3 22.3 17.1 10.6 4.1 1.1 11.1 MEAN -1.5 0.1 4.5 10.3 15.1 20.0 23.0 21.1 15.4 9.9 4.0 -0.1 10.2 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 3 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF MAXIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 13.7 24.2 29.2 36.1 39.5 37.1 34.1 28.4 16.2 9.8 ****** 1987 14.2 15.7 17.3 26.7 33.3 38.7 39.2 39.3 34.1 21.2 19.8 13.7 26.1 1988 10.5 12.9 19.6 24.9 33.3 37.8 40.3 38.7 34.8 27.5 20.0 14.1 26.2 1989 7.3 7.5 18.4 27.8 32.3 39.3 41.1 39.8 34.7 29.0 20.0 14.0 25.9 1990 8.0 11.2 18.6 26.0 34.1 39.6 40.2 40.0 37.1 27.4 22.1 12.9 26.4 1991 10.1 10.5 16.7 26.9 30.9 37.1 40.1 39.1 34.6 26.8 19.5 10.6 25.3 1992 7.2 12.0 13.6 23.7 26.0 35.7 40.6 36.4 32.9 27.4 20.0 11.2 23.9 1993 6.5 11.5 16.5 25.4 30.0 37.1 38.7 38.0 35.5 25.0 14.7 12.8 24.3 1994 12.2 12.9 19.9 26.9 30.9 37.1 40.5 40.2 31.9 25.3 18.6 9.3 25.5 1995 14.1 15.7 20.4 25.2 30.5 36.0 41.4 40.9 34.1 26.4 20.9 10.3 26.3 1996 8.0 12.8 14.4 23.4 32.0 37.5 38.7 39.2 36.7 26.7 17.7 15.3 25.2 1997 13.9 14.0 17.0 25.9 31.8 37.9 42.0 41.4 34.7 29.6 18.1 12.4 26.6 1998 9.3 12.8 18.5 27.3 31.4 38.8 40.2 39.7 35.3 27.7 23.0 16.0 26.7 1999 11.1 17.2 18.6 26.7 34.3 39.5 38.7 40.5 35.1 29.4 16.8 13.2 26.8 2000 10.8 14.2 19.6 29.7 35.3 38.5 40.0 39.9 35.7 25.0 16.3 10.9 26.3 2001 10.4 14.4 22.4 29.8 33.1 38.2 39.3 40.1 35.0 28.2 19.4 13.4 27.0 2002 11.1 17.4 22.1 23.5 32.2 37.5 39.6 40.3 37.0 30.8 18.7 9.4 26.6 2003 12.5 13.5 17.0 25.0 30.0 37.0 41.8 39.2 34.2 30.3 17.8 10.7 25.7 2004 11.4 16.8 21.6 23.7 30.5 38.0 38.6 39.9 34.6 28.2 18.8 10.3 26.0 2005 10.1 10.6 20.1 26.5 31.0 37.6 41.1 38.7 36.0 28.6 17.3 15.0 26.0 MEAN 10.5 13.4 18.3 26.0 31.6 37.8 40.1 39.4 34.9 27.4 18.8 12.3 25.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 4 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 11.3 13.0 14.8 16.7 17.6 17.5 20.4 17.2 12.0 10.9 ****** 1987 15.9 14.5 12.4 17.8 17.1 18.0 17.4 18.3 18.1 12.5 15.3 13.4 15.9 1988 11.5 12.1 14.8 14.8 17.6 17.8 17.4 16.6 19.7 18.4 16.7 14.9 16.0 1989 12.0 11.5 13.3 18.1 18.1 19.8 17.6 18.8 20.0 19.1 15.8 12.4 16.3 1990 9.9 11.0 14.6 16.9 19.0 19.7 16.9 18.2 22.5 17.5 18.8 14.6 16.6 1991 11.0 11.8 11.7 16.7 16.7 17.7 17.7 20.2 19.8 16.9 16.7 12.1 15.8 1992 11.3 13.8 12.7 14.4 13.0 16.6 18.5 16.8 21.0 19.2 16.6 11.8 15.5 1993 10.2 11.1 13.4 15.0 15.5 18.3 16.9 17.3 20.0 17.1 12.1 12.7 15.0 1994 12.0 12.4 14.0 16.5 15.3 18.0 17.6 18.6 18.4 15.3 12.4 11.3 15.2 1995 15.3 14.6 15.7 15.1 15.3 16.7 18.2 19.9 19.2 18.5 18.5 13.0 16.6 1996 10.4 10.7 10.0 13.6 16.4 17.3 16.2 19.0 19.6 18.5 15.6 15.4 15.2 1997 15.7 17.1 14.0 16.6 17.0 16.5 17.3 20.8 19.4 17.7 13.7 11.6 16.5 1998 10.9 12.5 13.5 16.7 15.9 17.9 16.1 17.6 19.3 19.0 18.4 15.8 16.1 1999 11.5 15.7 14.5 17.3 19.1 19.0 17.1 19.1 19.5 18.2 12.6 12.8 16.4 2000 12.7 14.9 16.3 17.7 18.4 19.5 17.5 19.0 19.0 15.8 12.0 8.9 16.0 2001 12.3 14.2 16.4 17.7 17.3 18.6 16.2 19.5 18.1 17.1 15.4 10.7 16.1 2002 11.7 15.3 17.1 13.0 17.7 17.8 16.4 18.3 20.3 19.0 13.5 9.7 15.8 2003 12.3 12.4 12.9 13.7 15.6 17.3 16.3 17.6 19.2 18.2 14.6 9.6 14.9 2004 10.1 14.1 14.1 13.2 15.1 15.7 15.9 16.7 18.2 17.7 12.7 10.9 14.5 2005 10.8 11.2 13.5 15.2 15.7 17.0 15.8 16.4 18.9 18.0 13.2 13.9 14.9 MEAN 12.0 13.3 13.8 15.7 16.5 17.8 17.1 18.3 19.5 17.5 14.8 12.4 15.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 5 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF MEAN DAILY TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 8.1 17.7 21.8 27.8 30.7 28.4 23.9 19.8 10.2 4.4 ****** 1987 6.3 8.4 11.1 17.8 24.8 29.7 30.5 30.1 25.0 15.0 12.2 7.0 18.2 1988 4.8 6.9 12.2 17.5 24.5 28.9 31.6 30.4 25.0 18.3 11.7 6.6 18.2 1989 1.3 1.7 11.7 18.7 23.2 29.4 32.3 30.4 24.7 19.4 12.1 7.8 17.7 1990 3.0 5.7 11.3 17.6 24.6 29.7 31.7 30.9 25.9 18.7 12.7 5.6 18.1 1991 4.6 4.6 10.9 18.6 22.6 28.3 31.2 29.0 24.7 18.3 11.2 4.6 17.4 1992 1.6 5.1 7.3 16.5 19.5 27.4 31.4 28.0 22.4 17.8 11.7 5.3 16.2 1993 1.4 6.0 9.8 17.9 22.2 28.0 30.3 29.4 25.5 16.5 8.6 6.5 16.8 1994 6.2 6.7 12.9 18.7 23.2 28.1 31.7 30.9 22.7 17.7 12.4 3.7 17.9 1995 6.4 8.4 12.6 17.7 22.8 27.7 32.3 31.0 24.5 17.1 11.7 3.8 18.0 1996 2.8 7.4 9.4 16.6 23.8 28.9 30.6 29.7 26.9 17.5 9.9 7.6 17.6 1997 6.1 5.5 10.0 17.6 23.3 29.6 33.4 31.0 25.0 20.8 11.3 6.6 18.3 1998 3.9 6.5 11.8 19.0 23.4 29.9 32.1 30.9 25.6 18.2 13.8 8.1 18.6 1999 5.4 9.3 11.4 18.0 24.7 30.0 30.1 31.0 25.4 20.3 10.5 6.8 18.6 2000 4.4 6.8 11.4 20.8 26.1 28.7 31.2 30.4 26.2 17.1 10.3 6.4 18.3 2001 4.3 7.3 14.2 20.9 24.4 28.9 31.2 30.3 25.9 19.6 11.7 8.0 18.9 2002 5.2 9.8 13.5 17.0 23.3 28.6 31.4 31.2 26.9 21.3 12.0 4.6 18.7 2003 6.4 7.3 10.5 18.2 22.2 28.4 33.6 30.4 24.6 21.2 10.5 5.9 18.3 2004 6.3 9.7 14.6 17.1 22.9 30.2 30.6 31.5 25.5 19.3 12.4 4.9 18.8 2005 4.7 5.0 13.4 18.9 23.1 29.1 33.2 30.5 26.6 19.6 10.7 8.0 18.6 MEAN 4.5 6.7 11.4 18.1 23.3 28.9 31.6 30.3 25.1 18.7 11.4 6.1 18.0 SD 1.74 1.98 1.89 1.18 1.38 0.84 1.02 0.94 1.20 1.64 1.17 1.45 1.37 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 6 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M TEMPERATURE RECORDS LOWEST IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** -4.0 3.6 10.2 16.3 18.0 14.5 11.0 6.0 -2.0 -6.5 ****** DAY ** ** 17 1 5 10 14 13 13 18 14 17 1987 -5.5 -5.2 -1.7 1.0 9.0 17.0 15.0 16.5 11.2 1.2 -2.4 -6.1 -6.1 DAY 13 12 23 6 8 1 29 24 25 13 30 3 1988 -7.0 -7.0 0.0 0.4 10.0 16.0 18.0 17.0 10.0 6.0 -5.0 -8.6 -8.6 DAY 4 7 6 4 6 1 28 27 28 23 16 31 1989 -11.0 -11.0 -1.0 3.0 6.0 15.6 17.2 14.0 7.5 5.0 -1.6 -2.6 -11.0 DAY 31 1 31 1 2 2 31 31 24 24 23 8 1990 -6.0 -4.0 -5.0 4.0 11.0 13.0 18.2 18.0 11.0 3.0 -2.8 -10.0 -10.0 DAY 14 1 21 3 15 1 20 8 30 20 15 27 1991 -6.0 -9.0 -0.5 3.4 8.0 15.0 19.6 13.5 7.5 5.0 -4.0 -8.0 -9.0 DAY 29 14 11 14 7 2 30 26 28 31 26 20 1992 -12.0 -8.6 -11.0 4.0 5.4 15.0 16.5 15.0 8.0 3.0 -7.0 -10.5 -12.0 DAY 29 17 11 1 5 5 27 21 27 30 28 29 1993 -12.6 -5.5 -3.0 5.6 9.0 14.2 19.0 16.0 11.0 0.6 -5.0 -4.4 -12.6 DAY 11 17 23 30 1 7 3 31 18 10 15 7 1994 -6.0 -6.5 0.5 2.0 8.0 8.0 19.2 16.4 6.5 3.0 1.0 -8.0 -8.0 DAY 11 19 18 6 7 6 2 21 22 13 14 8 1995 -4.6 -2.6 -2.4 3.0 10.0 13.6 19.0 15.4 9.5 1.4 -6.2 -7.4 -7.4 DAY 22 26 7 8 9 1 1 11 22 20 30 1 1996 -7.8 -2.0 -1.6 5.0 11.0 16.0 18.0 15.8 13.0 3.0 -5.0 -6.0 -7.8 DAY 15 14 1 4 1 18 18 5 28 20 19 3 1997 -8.8 -11.2 -6.0 0.4 9.0 16.0 21.0 15.0 10.0 7.0 -1.0 -5.4 -11.2 DAY 29 8 9 12 7 4 14 29 16 30 29 29 1998 -5.4 -7.0 -3.0 3.0 9.0 17.0 19.0 18.0 12.0 4.0 0.0 -4.0 -7.0 DAY 11 18 3 7 6 3 27 31 17 26 26 6 1999 -10.0 -2.0 0.0 2.0 8.0 18.0 17.0 17.5 8.0 7.0 -3.5 -5.0 -10.0 DAY 4 1 7 11 22 7 16 28 29 22 30 1 2000 -8.0 -5.0 -4.5 6.0 12.0 14.0 16.0 17.0 12.0 4.0 -1.0 -3.0 -8.0 DAY 15 4 16 2 12 14 28 20 27 30 27 31 2001 -10.0 -5.0 -1.4 7.0 12.0 14.5 18.0 16.0 13.0 6.0 -4.4 -3.5 -10.0 DAY 29 1 12 14 5 13 31 1 16 30 21 22 2002 -6.0 -2.5 -4.0 3.5 8.2 16.0 19.6 19.0 12.0 6.2 -1.6 -7.0 -7.0 DAY 14 4 7 1 5 3 6 16 30 27 30 31 2003 -5.0 -5.0 -5.5 4.0 7.8 13.0 21.5 18.0 8.8 8.5 -4.6 -6.0 -6.0 DAY 3 18 3 18 10 7 2 31 28 17 23 23 2004 -6.0 -1.5 0.0 3.2 11.0 16.5 19.4 18.0 8.5 5.4 -2.4 -5.5 -6.0 DAY 4 4 17 6 6 1 18 24 30 30 29 4 2005 -4.5 -7.0 -2.4 1.2 10.5 16.0 21.2 17.2 12.5 2.6 -0.8 -5.5 -7.0 DAY 15 11 27 8 4 4 30 20 30 25 26 30 1986-2005 -12.6 -11.2 -11.0 0.4 5.4 8.0 15.0 13.5 6.5 0.6 -7.0 -10.5 -12.6 YEAR-DAY 93-11 97- 8 92-11 88- 4 92- 5 94- 6 87-29 91-26 94-22 93-10 92-28 92-29 93 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 7 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M TEMPERATURE RECORDS HIGHEST IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 22.0 28.0 35.0 42.0 41.6 40.6 37.5 33.4 28.4 16.8 ****** DAY ** ** 1 16 25 30 30 16 25 3 1 24 1987 23.4 23.2 24.0 34.0 37.0 42.0 44.2 42.2 41.0 34.2 26.0 20.5 44.2 DAY 31 25 9 15 16 29 20 4 6 1 7 11 1988 16.0 20.0 26.0 33.0 39.0 42.2 44.0 43.0 40.0 32.0 27.0 22.0 44.0 DAY 31 29 20 18 28 14 13 12 11 6 2 11 1989 12.0 19.0 24.4 33.6 40.0 44.2 45.6 42.4 41.0 35.2 25.0 20.0 45.6 DAY 1 28 25 15 26 30 13 5 2 8 28 1 1990 14.0 19.0 24.0 34.6 40.8 43.0 44.2 44.0 40.0 33.0 28.0 22.0 44.2 DAY 5 28 8 27 25 29 28 6 6 1 7 1 1991 15.0 18.0 24.0 34.5 36.0 41.0 43.5 44.5 40.4 30.4 27.2 16.0 44.5 DAY 31 18 29 22 17 28 7 6 9 27 2 1 1992 13.0 20.0 23.0 31.0 34.4 41.2 44.0 41.0 38.0 32.0 26.0 17.0 44.0 DAY 19 21 29 22 30 30 5 1 25 4 2 1 1993 17.0 20.0 26.0 33.6 36.0 41.6 43.0 42.0 40.0 35.0 22.0 20.0 43.0 DAY 29 28 30 19 17 29 3 14 2 1 11 28 1994 17.6 20.0 27.5 35.5 36.5 41.0 44.5 44.0 36.0 30.0 24.5 16.0 44.5 DAY 30 27 30 22 29 16 17 1 2 14 2 1 1995 20.2 21.0 26.6 30.0 35.4 41.0 45.4 44.5 38.0 36.6 27.5 17.0 45.4 DAY 31 5 24 30 21 29 16 6 9 4 3 2 1996 15.4 19.8 27.0 31.0 38.0 42.0 42.0 42.0 40.0 32.0 23.5 21.6 42.0 DAY 8 20 31 22 31 4 3 10 10 14 3 27 1997 21.6 21.0 24.0 34.0 39.0 41.0 45.0 45.5 41.0 35.0 25.0 17.0 45.5 DAY 6 22 22 26 28 17 18 14 1 4 5 5 1998 13.0 21.0 26.0 36.0 37.0 43.5 45.0 43.5 40.0 36.0 28.2 21.0 45.0 DAY 27 8 28 16 11 28 11 20 2 1 9 19 1999 17.0 22.5 26.0 32.0 41.5 42.0 44.0 42.2 39.2 35.0 23.5 20.5 44.0 DAY 31 28 26 30 31 1 4 1 3 6 19 29 2000 18.0 20.0 25.0 34.5 40.0 44.0 44.0 43.5 40.6 31.5 24.2 14.6 44.0 DAY 2 24 30 20 26 23 11 3 9 12 4 22 2001 19.6 22.6 30.0 34.0 39.0 44.0 44.5 43.5 39.0 33.0 27.5 20.5 44.5 DAY 15 28 31 26 15 27 9 3 4 7 6 31 2002 19.0 24.0 29.6 29.5 39.6 42.0 43.5 44.4 39.6 36.0 26.5 13.5 44.4 DAY 1 26 27 30 29 13 16 10 3 3 11 8 2003 21.5 17.0 23.2 33.8 35.5 42.0 46.0 42.0 38.5 34.0 25.0 17.0 46.0 DAY 9 9 20 6 16 23 17 15 6 10 1 9 2004 15.0 24.0 29.0 31.0 35.2 41.5 42.5 42.5 41.0 35.0 25.0 17.0 42.5 DAY 22 29 29 15 10 25 2 12 7 12 1 31 2005 20.2 20.5 28.0 36.0 34.5 42.0 45.0 44.2 39.6 33.5 25.3 22.3 45.0 DAY 1 28 31 25 27 17 18 6 3 18 1 7 1986-2005 23.4 24.0 30.0 36.0 41.5 44.2 46.0 45.5 41.0 36.6 28.4 22.3 46.0 YEAR-DAY 87-31 2-26 1-31 98-16 99-31 89-30 3-17 97-14 87- 6 95- 4 86- 1 5- 7 3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 8 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M 0C COOLING DEGREE DAYS (BASE 21) YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 0.0 0.0 53.4 203.4 300.1 229.2 87.0 27.9 0.0 0.0 ****** 1987 0.0 0.0 0.0 9.1 119.2 260.8 294.6 283.1 121.1 9.3 0.0 0.0 1097.5 1988 0.0 0.0 0.0 7.8 113.8 237.6 329.3 291.5 122.4 0.0 0.0 0.0 1102.5 1989 0.0 0.0 0.0 7.5 80.6 252.7 350.0 292.3 122.0 21.9 0.0 0.0 1127.1 1990 0.0 0.0 0.0 15.2 118.0 262.3 332.7 305.9 145.7 8.5 0.0 0.0 1188.4 1991 0.0 0.0 0.0 12.1 64.8 217.8 317.1 247.1 123.4 0.0 0.0 0.0 982.4 1992 0.0 0.0 0.0 4.6 32.9 192.7 321.8 217.0 47.8 0.8 0.0 0.0 817.8 1993 0.0 0.0 0.0 9.6 65.0 208.7 287.4 259.2 136.4 4.8 0.0 0.0 971.3 1994 0.0 0.0 0.0 19.8 85.5 214.1 330.7 306.0 62.0 1.8 0.0 0.0 1019.8 1995 0.0 0.0 0.0 1.6 69.3 200.0 350.6 308.6 111.6 11.7 0.0 0.0 1053.5 1996 0.0 0.0 0.0 1.6 89.7 236.5 297.6 268.9 177.1 3.6 0.0 0.0 1075.2 1997 0.0 0.0 0.0 8.3 80.4 259.2 383.2 308.9 119.2 28.5 0.0 0.0 1187.8 1998 0.0 0.0 0.0 20.8 92.3 266.2 345.6 306.8 139.2 16.8 0.0 0.0 1187.8 1999 0.0 0.0 0.0 3.3 120.8 270.4 283.0 308.8 135.2 26.7 0.0 0.0 1148.2 2000 0.0 0.0 0.0 23.1 157.0 232.0 317.3 291.9 155.7 0.5 0.0 0.0 1177.7 2001 0.0 0.0 0.0 24.6 113.8 238.0 317.4 288.5 149.4 9.3 0.0 0.0 1141.2 2002 0.0 0.0 1.0 0.8 87.6 228.7 321.6 315.6 176.9 39.7 0.0 0.0 1172.1 2003 0.0 0.0 0.0 16.1 60.1 221.1 392.1 290.8 113.1 24.3 0.0 0.0 1117.7 2004 0.0 0.0 0.0 2.4 71.6 274.9 298.7 327.0 138.8 18.9 0.0 0.0 1132.5 2005 0.0 0.0 0.0 29.1 75.0 242.5 378.3 294.2 166.5 22.6 0.0 0.0 1208.4 MEAN 0.0 0.0 0.1 10.9 87.6 236.0 327.5 287.1 127.5 13.9 0.0 0.0 1090.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 9 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M 0C HEATING DEGREE DAYS (BASE 18) YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 288.7 29.1 8.9 0.0 0.0 0.0 0.0 19.4 233.6 409.3 ****** 1987 352.5 267.5 214.5 49.6 0.0 0.0 0.0 0.0 0.0 124.9 174.8 341.8 1525.5 1988 410.4 322.8 179.5 65.2 0.0 0.0 0.0 0.0 0.0 14.1 191.0 352.3 1535.2 1989 517.4 455.6 193.8 26.0 1.7 0.0 0.0 0.0 0.0 20.8 177.7 316.8 1709.8 1990 464.2 344.4 208.6 51.3 0.0 0.0 0.0 0.0 0.0 30.8 159.1 384.1 1642.5 1991 415.0 375.5 220.3 33.2 2.4 0.0 0.0 0.0 1.1 14.0 204.5 416.7 1682.7 1992 509.7 373.5 332.6 65.4 38.9 0.0 0.0 0.0 0.0 32.0 188.3 393.9 1934.5 1993 514.6 336.2 253.3 33.6 3.0 0.0 0.0 0.0 0.0 63.2 281.6 357.3 1842.8 1994 365.1 315.8 160.8 34.9 1.7 0.0 0.0 0.0 0.3 28.2 168.2 444.3 1519.2 1995 358.1 268.8 167.8 31.7 0.8 0.0 0.0 0.0 0.0 64.2 189.9 439.3 1520.8 1996 470.4 306.7 266.8 61.5 0.0 0.0 0.0 0.0 0.0 42.3 242.0 321.3 1710.9 1997 369.9 350.6 248.1 52.6 0.0 0.0 0.0 0.0 0.0 3.8 202.4 352.3 1579.8 1998 437.7 320.6 194.6 30.6 2.3 0.0 0.0 0.0 0.0 38.1 125.3 305.5 1454.7 1999 391.8 243.2 205.4 30.3 0.0 0.0 0.0 0.0 0.0 16.5 225.1 347.7 1460.1 2000 420.1 325.4 204.3 4.8 0.0 0.0 0.0 0.0 0.0 43.2 232.3 358.6 1588.7 2001 425.6 298.4 123.7 2.0 0.0 0.0 0.0 0.0 0.0 12.1 188.9 308.5 1359.3 2002 395.7 230.9 145.5 55.2 0.7 0.0 0.0 0.0 0.0 4.5 181.9 416.0 1430.3 2003 360.7 299.2 231.3 46.8 2.1 0.0 0.0 0.0 0.0 1.3 227.0 374.9 1543.3 2004 362.6 239.4 119.3 57.4 0.0 0.0 0.0 0.0 0.0 20.8 167.4 407.3 1374.1 2005 412.2 364.5 147.6 45.2 1.2 0.0 0.0 0.0 0.0 35.3 219.7 309.1 1534.8 MEAN 418.6 317.9 205.3 40.3 3.2 0.0 0.0 0.0 0.1 31.5 199.0 367.9 1583.8 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 10 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF DEW POINT TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 1.2 5.8 7.1 8.3 5.4 5.3 4.0 3.5 1.2 -1.7 ****** 1987 -3.9 -1.2 0.9 2.3 5.3 1.1 6.5 4.9 3.1 2.6 0.1 -1.4 1.7 1988 -2.9 -2.3 -1.9 3.6 1.0 1.3 7.3 6.4 1.5 1.2 -4.1 -4.6 0.5 1989 -6.4 -5.9 1.5 -1.6 0.4 1.5 4.2 2.3 -0.6 -1.3 -0.1 0.5 -0.5 1990 -2.3 -1.5 -2.2 -0.5 -0.1 -0.7 4.7 5.3 -1.0 1.4 -2.5 -5.1 -0.4 1991 -1.7 -2.9 2.4 1.6 1.9 3.7 4.4 2.9 2.1 2.7 -0.9 -1.8 1.2 1992 -4.8 -5.1 -1.6 2.8 6.8 6.2 5.4 5.7 0.3 -1.3 -1.3 -1.9 0.9 1993 -3.8 0.0 -1.9 2.4 4.5 5.4 9.1 9.4 2.6 -1.0 1.5 -0.0 2.3 1994 -0.9 -2.9 1.1 4.7 6.3 5.4 9.5 6.6 2.5 5.7 4.5 -3.9 3.2 1995 -3.2 -1.2 -1.2 4.8 5.3 6.7 7.4 7.5 5.1 -0.7 -5.2 -3.4 1.8 1996 -2.8 1.4 2.5 4.1 7.6 4.1 6.8 8.0 3.2 0.6 -2.0 -4.6 2.4 1997 -6.1 -8.8 -3.9 -1.0 2.3 5.0 6.6 2.7 1.2 1.6 0.6 1.0 0.1 1998 -2.7 -3.1 -0.2 3.5 5.6 4.4 7.8 8.5 4.9 2.5 -0.6 -1.2 2.4 1999 -1.8 -1.7 -0.3 2.3 1.3 2.0 8.2 5.8 5.4 3.4 2.4 0.9 2.3 2000 -3.9 -4.8 -4.9 0.9 0.3 3.2 7.1 8.6 5.6 5.2 2.7 2.7 1.9 2001 -2.1 -1.4 1.4 3.8 5.0 9.6 9.4 10.2 3.9 4.5 -0.3 3.2 3.9 2002 -1.6 -3.3 -2.9 6.1 5.2 7.5 6.9 7.8 5.5 2.6 3.0 -2.0 2.9 2003 -1.8 -1.8 -0.4 5.5 3.2 6.0 7.4 5.3 2.5 1.6 -2.5 0.1 2.1 2004 1.0 -3.2 0.3 3.4 7.8 7.5 7.8 5.7 3.6 2.1 3.4 -1.7 3.1 2005 -2.5 -2.7 0.7 1.8 5.5 6.8 8.2 8.7 3.9 2.1 1.9 -1.0 2.8 MEAN -2.8 -2.8 -0.5 2.8 4.1 4.8 7.0 6.4 3.0 2.0 0.1 -1.3 1.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 11 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF MIXING RATIO IN G/KG YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 4.69 6.57 7.18 8.13 6.32 6.39 5.69 5.50 4.71 3.81 ***** 1987 3.19 4.02 4.86 5.14 6.42 4.75 6.94 6.25 5.45 5.46 4.34 3.90 5.06 1988 3.48 3.67 3.87 6.03 4.71 4.79 7.50 6.96 4.91 4.79 3.47 3.12 4.78 1989 2.66 2.84 4.83 3.90 4.57 4.91 5.94 5.14 4.30 3.96 4.33 4.46 4.32 1990 3.60 3.82 3.73 4.30 4.36 4.23 6.12 6.37 4.10 4.85 3.61 2.96 4.34 1991 3.79 3.51 5.24 5.00 5.08 5.75 6.08 5.47 5.13 5.32 3.97 3.83 4.85 1992 3.00 2.99 4.01 5.39 7.05 6.76 6.57 6.53 4.41 3.90 4.07 3.78 4.87 1993 3.24 4.34 3.92 5.24 6.16 6.38 8.17 8.34 5.24 4.14 4.98 4.21 5.36 1994 4.05 3.48 4.73 6.10 6.89 6.53 8.57 7.00 5.33 6.64 6.10 3.32 5.73 1995 3.38 3.92 4.11 6.17 6.54 7.01 7.40 7.67 6.50 4.23 3.14 3.35 5.29 1996 3.47 4.70 5.21 5.93 7.39 6.05 7.04 7.88 5.41 4.57 3.75 3.16 5.38 1997 2.71 2.35 3.34 4.18 5.18 6.24 6.98 5.32 4.70 4.85 4.55 4.61 4.58 1998 3.49 3.42 4.42 5.63 6.44 5.90 7.49 7.90 6.19 5.11 4.10 3.88 5.33 1999 3.80 3.82 4.27 5.26 4.75 4.99 7.77 6.54 6.36 5.46 5.20 4.59 5.23 2000 3.24 3.05 3.17 4.80 4.58 5.56 7.16 7.88 6.49 6.25 5.22 5.18 5.22 2001 3.65 3.84 4.77 5.61 6.27 8.65 8.36 9.26 5.76 5.96 4.28 5.37 5.98 2002 3.86 3.38 3.68 6.73 6.31 7.48 7.08 7.54 6.41 5.19 5.32 3.80 5.57 2003 3.74 3.78 4.35 6.40 5.69 6.61 7.37 6.33 5.22 4.86 3.65 4.42 5.20 2004 4.62 3.42 4.37 5.61 7.50 7.84 7.59 6.57 5.66 5.03 5.57 3.80 5.63 2005 3.57 3.53 4.71 5.13 6.41 6.98 7.67 8.01 5.68 4.96 4.95 4.00 5.47 MEAN 3.50 3.57 4.31 5.46 5.97 6.28 7.21 6.97 5.45 5.05 4.47 3.98 5.18 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 12 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF VAPOUR PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 6.85 9.55 10.40 11.68 9.14 9.26 8.30 8.04 6.90 5.59 ***** 1987 4.69 5.88 7.06 7.47 9.31 6.89 10.02 9.03 7.92 7.99 6.37 5.72 7.36 1988 5.11 5.37 5.63 8.75 6.85 6.93 10.78 10.03 7.14 7.00 5.08 4.57 6.94 1989 3.91 4.18 7.03 5.70 6.66 7.10 8.57 7.45 6.25 5.80 6.34 6.53 6.29 1990 5.28 5.59 5.46 6.25 6.34 6.12 8.83 9.20 5.96 7.09 5.30 4.35 6.31 1991 5.55 5.15 7.63 7.28 7.37 8.31 8.76 7.91 7.47 7.78 5.83 5.61 7.05 1992 4.40 4.37 5.85 7.83 10.23 9.76 9.46 9.46 6.44 5.70 5.97 5.53 7.08 1993 4.76 6.34 5.72 7.62 8.94 9.22 11.77 12.03 7.62 6.07 7.28 6.18 7.80 1994 5.94 5.08 6.90 8.87 9.99 9.40 12.28 10.07 7.76 9.69 8.88 4.87 8.31 1995 4.97 5.73 6.00 8.96 9.50 10.12 10.62 11.03 9.40 6.19 4.60 4.93 7.67 1996 5.10 6.86 7.58 8.61 10.72 8.74 10.17 11.36 7.85 6.69 5.52 4.64 7.82 1997 3.97 3.44 4.87 6.07 7.54 9.02 10.03 7.70 6.85 7.09 6.67 6.75 6.67 1998 5.11 5.01 6.44 8.18 9.35 8.56 10.78 11.40 8.98 7.47 6.02 5.72 7.75 1999 5.57 5.58 6.22 7.66 6.90 7.22 11.18 9.46 9.21 7.96 7.61 6.75 7.61 2000 4.75 4.48 4.62 6.99 6.64 8.03 10.33 11.37 9.40 9.13 7.65 7.59 7.58 2001 5.37 5.63 6.95 8.15 9.08 12.43 12.01 13.30 8.37 8.68 6.26 7.88 8.68 2002 5.65 4.96 5.37 9.76 9.14 10.77 10.22 10.86 9.31 7.58 7.79 5.57 8.08 2003 5.48 5.52 6.34 9.29 8.27 9.55 10.58 9.15 7.59 7.09 5.36 6.48 7.56 2004 6.75 5.01 6.39 8.16 10.85 11.28 10.94 9.49 8.24 7.37 8.14 5.58 8.18 2005 5.24 5.17 6.86 7.47 9.31 10.07 11.05 11.54 8.24 7.26 7.25 5.87 7.94 MEAN 5.14 5.23 6.29 7.93 8.67 9.06 10.38 10.05 7.91 7.38 6.54 5.84 7.53 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 13 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF SATURATION DEFICIT PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 5.43 11.68 17.96 29.52 39.75 32.84 24.69 16.86 6.09 2.66 ***** 1987 5.08 5.53 6.64 14.94 24.42 39.08 37.16 37.61 26.26 10.18 8.25 4.20 18.28 1988 3.65 4.80 9.27 12.34 26.73 36.98 39.52 36.66 27.83 15.34 9.80 5.59 19.04 1989 2.87 2.93 7.30 18.55 25.44 39.62 44.50 40.70 28.75 18.93 8.48 4.02 20.17 1990 2.36 3.74 8.61 15.86 27.77 41.16 41.67 39.48 31.22 15.76 10.39 5.42 20.29 1991 2.93 3.70 5.76 16.25 24.80 34.10 41.03 36.52 27.04 14.59 8.34 2.92 18.17 1992 2.41 4.59 4.82 11.98 13.71 29.72 41.73 31.63 23.88 15.93 8.21 3.55 16.01 1993 2.18 3.12 7.04 13.90 19.78 32.49 35.24 32.52 28.27 13.90 4.32 3.66 16.37 1994 3.66 4.94 8.84 14.44 20.65 32.78 38.52 38.37 22.87 11.50 5.65 3.24 17.12 1995 4.80 5.57 9.49 12.37 19.64 29.96 42.20 39.10 24.60 15.22 10.08 3.12 18.01 1996 2.35 3.53 4.47 10.84 20.72 34.19 37.02 34.62 30.67 14.69 7.29 6.03 17.20 1997 5.75 6.36 8.00 15.92 23.83 35.91 45.60 42.69 27.65 18.96 6.95 3.06 20.06 1998 2.79 4.93 8.14 15.31 21.70 38.02 40.86 36.75 27.08 15.30 10.29 5.30 18.87 1999 3.42 6.59 8.19 14.66 27.87 40.02 35.39 40.00 26.31 17.57 5.13 3.13 19.02 2000 3.71 5.69 9.92 19.73 29.95 35.79 39.34 35.98 27.38 11.22 4.99 1.78 18.79 2001 3.03 4.80 10.38 18.27 24.42 31.88 36.68 34.24 27.80 15.20 8.03 2.79 18.13 2002 3.22 7.48 11.28 10.51 22.20 31.94 39.69 38.48 29.42 19.53 6.54 2.90 18.60 2003 4.12 4.75 7.07 12.38 20.44 32.64 45.36 38.17 26.48 19.74 7.97 2.91 18.50 2004 2.71 7.57 11.68 12.55 18.79 35.19 36.57 40.78 27.82 16.46 6.66 3.00 18.32 2005 3.22 3.92 9.19 16.59 21.14 34.27 43.64 36.06 29.46 17.46 5.94 5.01 18.83 MEAN 3.38 4.98 8.08 14.45 22.60 34.76 40.07 37.16 27.27 15.72 7.47 3.71 18.30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 14 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 63 50 43 31 21 25 29 37 59 71 *** 1987 54 57 55 40 33 17 25 22 27 51 50 61 41 1988 62 58 43 46 25 18 25 24 24 37 38 51 38 1989 62 62 54 28 26 18 18 18 21 28 47 66 37 1990 72 65 44 35 23 15 20 22 20 36 39 51 37 1991 69 63 61 37 27 22 20 21 26 39 47 70 42 1992 69 54 59 46 51 29 22 26 26 31 47 65 44 1993 74 71 51 42 37 26 27 30 25 35 66 69 46 1994 66 56 49 45 38 26 27 23 28 50 66 63 45 1995 57 56 44 47 38 29 23 25 31 34 36 66 41 1996 73 71 68 51 41 24 24 28 24 36 47 48 45 1997 47 39 42 33 28 23 20 18 24 31 53 72 36 1998 68 56 51 42 36 21 23 27 29 40 43 57 41 1999 66 53 50 38 24 18 27 22 30 36 64 72 42 2000 61 50 36 30 21 21 23 27 30 51 65 83 42 2001 70 61 47 35 33 33 28 30 26 41 50 77 44 2002 68 46 38 55 35 28 23 25 27 33 61 68 42 2003 64 59 52 50 32 26 21 22 26 31 45 71 42 2004 75 45 43 46 42 26 26 21 26 36 60 68 43 2005 66 63 48 36 34 25 22 27 25 34 60 59 42 MEAN 65 57 50 42 33 24 23 24 26 37 52 65 41 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 15 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF MAXIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 82 75 67 48 36 40 43 55 78 88 *** 1987 76 78 77 62 55 31 43 39 45 68 70 81 60 1988 81 77 65 72 44 32 44 41 39 55 58 69 56 1989 80 80 76 50 45 32 32 31 38 43 68 84 55 1990 88 83 69 61 40 28 33 37 36 54 60 70 55 1991 86 85 83 64 47 39 36 40 44 60 66 85 61 1992 86 77 84 69 76 48 42 43 44 50 68 83 64 1993 88 89 77 66 59 42 41 45 42 55 87 86 65 1994 84 77 73 70 62 41 41 37 47 71 85 82 64 1995 79 79 66 70 61 47 39 39 49 54 61 84 61 1996 88 90 88 78 67 43 41 46 40 58 66 69 65 1997 67 62 66 54 49 40 35 33 40 50 73 89 55 1998 85 79 73 68 61 37 38 44 46 60 62 77 61 1999 84 78 75 62 42 30 43 36 47 52 84 89 60 2000 81 73 58 52 36 35 37 42 48 72 86 94 60 2001 88 83 73 56 53 52 44 45 43 59 73 92 63 2002 87 68 62 79 55 42 38 40 40 51 81 85 61 2003 80 81 75 74 51 44 37 38 43 48 65 88 60 2004 91 68 65 71 64 40 42 34 42 54 81 85 61 2005 81 83 71 62 57 40 36 44 42 51 82 77 61 MEAN 83 78 73 66 55 40 39 40 43 56 73 83 61 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 16 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF MINIMUM RELATIVE HUMIDITY IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 46 29 24 20 12 15 18 21 38 47 *** 1987 28 35 34 22 17 9 13 11 14 35 27 38 24 1988 40 35 23 23 12 9 13 14 13 20 19 31 21 1989 39 40 32 13 13 9 10 9 10 15 26 41 21 1990 49 46 22 16 10 7 11 12 8 19 19 30 21 1991 46 39 37 17 15 12 11 10 13 21 29 48 25 1992 46 28 36 26 30 15 10 15 12 16 25 44 25 1993 54 46 27 20 18 14 18 20 13 18 43 44 28 1994 41 31 27 24 20 15 16 13 16 30 41 38 26 1995 30 33 22 26 20 15 12 15 19 18 17 40 22 1996 51 46 45 27 20 12 12 16 13 18 29 24 26 1997 26 20 24 16 14 12 11 9 12 17 32 50 20 1998 45 34 30 21 19 12 14 15 16 22 24 33 24 1999 43 27 28 20 12 9 16 12 18 24 42 48 25 2000 37 26 18 15 10 12 14 17 16 31 41 64 25 2001 48 34 25 20 17 20 16 19 15 26 27 55 27 2002 44 24 17 33 20 17 13 15 17 17 36 48 25 2003 42 34 27 29 18 14 12 12 14 16 25 51 25 2004 52 24 24 26 24 17 15 12 15 21 37 44 26 2005 45 41 28 19 18 16 13 17 13 19 35 36 25 MEAN 42 34 29 22 18 13 13 14 14 21 31 43 25 RH=0 =====> RELATIVE HUMIDITY < 0.5% =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 17 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF RELATIVE HUMIDITY AT 03 UTC. IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 76 70 63 47 36 39 42 54 73 84 *** 1987 73 74 73 58 50 29 39 38 45 62 68 76 57 1988 79 70 63 67 39 30 42 41 38 55 54 64 54 1989 75 73 69 49 40 31 32 30 35 41 67 80 52 1990 82 79 64 56 37 26 32 37 36 52 60 68 52 1991 83 82 77 61 47 37 32 37 41 57 65 82 58 1992 80 73 79 66 70 46 40 42 44 49 65 79 61 1993 83 85 72 60 54 41 39 43 40 49 83 83 61 1994 81 72 69 64 58 39 40 37 44 67 82 80 61 1995 77 75 63 67 55 46 38 38 46 49 54 78 57 1996 85 86 83 72 64 40 40 45 37 55 64 63 61 1997 64 59 57 51 44 38 34 32 40 47 69 88 52 1998 82 72 69 63 56 36 36 43 46 59 58 76 58 1999 80 74 71 58 40 29 42 35 45 50 78 86 57 2000 78 70 55 49 34 34 36 41 46 69 82 91 57 2001 83 81 67 53 50 47 43 43 42 56 67 90 60 2002 83 65 57 73 50 40 37 39 39 48 80 80 58 2003 77 77 72 70 48 43 36 38 42 45 61 84 58 2004 86 66 60 65 58 38 40 34 42 52 75 83 58 2005 77 78 66 55 54 38 35 43 41 49 79 76 58 MEAN 79 74 68 61 51 38 37 39 42 53 69 80 58 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 18 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF RELATIVE HUMIDITY AT 09 UTC. IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 53 34 30 25 15 18 21 25 44 53 *** 1987 36 41 41 26 21 12 17 16 18 41 32 44 29 1988 47 45 31 29 14 12 17 18 15 25 23 36 26 1989 47 47 39 16 17 11 13 12 17 18 33 48 27 1990 58 52 28 20 15 10 14 15 11 23 22 35 25 1991 53 48 45 21 20 15 14 13 18 26 33 54 30 1992 56 36 45 31 37 19 16 19 16 19 31 50 31 1993 60 56 33 28 23 18 21 23 16 21 49 52 33 1994 49 40 33 28 25 18 21 17 19 34 48 45 31 1995 39 41 27 30 24 19 16 19 23 24 20 49 28 1996 57 55 52 34 24 16 16 21 15 22 34 30 31 1997 33 26 30 22 18 16 15 12 14 20 37 58 25 1998 52 42 37 25 23 14 17 19 19 25 27 41 28 1999 50 34 35 24 15 12 20 15 21 28 46 56 30 2000 43 33 23 18 13 15 16 19 19 37 48 73 30 2001 55 41 31 23 21 23 20 23 17 28 32 63 31 2002 51 30 22 41 25 21 16 18 18 21 42 53 30 2003 49 40 35 37 21 18 15 16 17 19 30 58 30 2004 63 30 29 32 28 20 19 15 18 24 41 54 31 2005 55 48 32 21 22 19 16 20 17 23 41 42 30 MEAN 50 41 35 27 22 17 17 17 17 25 36 50 30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 19 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF RELATIVE HUMIDITY AT 15 UTC. IN PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 54 39 33 23 12 16 21 27 53 68 *** 1987 45 46 45 29 21 10 15 12 18 47 41 54 32 1988 52 48 31 35 14 10 14 14 16 28 29 44 28 1989 53 58 42 18 17 10 10 10 13 21 37 57 29 1990 67 57 32 24 14 8 13 13 12 30 30 45 29 1991 61 50 51 23 21 14 13 11 17 30 37 65 33 1992 64 45 51 36 37 19 10 16 15 21 37 57 34 1993 72 62 38 29 26 16 18 22 16 30 58 60 37 1994 59 46 36 34 25 16 18 15 20 41 56 55 35 1995 43 44 30 38 27 18 13 17 23 24 25 58 30 1996 69 61 61 41 28 14 15 19 16 26 40 39 36 1997 36 27 32 23 19 15 12 10 15 23 45 65 27 1998 62 46 39 29 23 13 15 17 18 30 35 48 31 1999 59 40 35 26 14 10 17 13 22 31 60 65 33 2000 53 38 26 20 12 13 15 19 19 42 55 79 33 2001 60 50 33 24 23 23 18 22 18 33 40 71 35 2002 62 35 26 45 25 22 14 17 22 27 52 60 34 2003 57 49 39 37 23 15 12 12 17 22 38 64 32 2004 67 33 33 33 32 21 18 13 17 27 53 60 34 2005 60 54 36 25 22 18 15 18 16 24 50 51 32 MEAN 58 47 39 30 23 15 14 15 18 29 44 58 33 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 20 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 *** *** 0 0 17 30 31 31 29 11 0 0 *** 1987 0 0 0 11 25 30 30 31 27 4 0 0 158 1988 0 0 0 6 25 30 31 31 28 5 0 0 156 1989 0 0 0 9 22 30 31 31 24 13 0 0 160 1990 0 0 0 7 28 30 31 31 30 11 0 0 168 1991 0 0 0 8 23 30 31 31 25 2 0 0 150 1992 0 0 0 3 9 30 31 30 28 6 0 0 137 1993 0 0 0 4 17 30 31 31 29 3 0 0 145 1994 0 0 0 7 19 30 31 31 25 1 0 0 144 1995 0 0 0 1 20 30 31 31 27 8 0 0 148 1996 0 0 0 2 18 30 31 31 30 6 0 0 148 1997 0 0 0 7 24 30 31 31 29 18 0 0 170 1998 0 0 0 12 23 30 31 31 29 10 0 0 166 1999 0 0 0 5 30 30 31 31 26 19 0 0 172 2000 0 0 0 14 31 30 31 31 29 2 0 0 168 2001 0 0 1 19 24 29 31 31 26 10 0 0 171 2002 0 0 0 0 20 30 31 31 30 20 0 0 162 2003 0 0 0 7 19 30 31 31 26 20 0 0 164 2004 0 0 0 1 20 30 31 31 28 8 0 0 149 2005 0 0 0 10 24 30 31 31 30 19 0 0 175 MEAN 0.0 0.0 0.1 6.6 21.9 29.9 30.9 30.9 27.7 9.8 0.0 0.0 157.8 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 21 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 *** *** 0 0 0 0 0 0 0 0 0 0 *** 1987 0 0 0 0 0 0 0 0 0 0 0 0 0 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 1 0 0 0 0 0 0 0 0 0 0 0 1 1990 0 0 0 0 0 0 0 0 0 0 0 0 0 1991 0 0 0 0 0 0 0 0 0 0 0 0 0 1992 1 0 0 0 0 0 0 0 0 0 0 1 2 1993 2 0 0 0 0 0 0 0 0 0 0 0 2 1994 0 0 0 0 0 0 0 0 0 0 0 0 0 1995 0 0 0 0 0 0 0 0 0 0 0 0 0 1996 0 0 0 0 0 0 0 0 0 0 0 0 0 1997 0 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 0 0 1999 0 0 0 0 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 0 0 0 0 2001 0 0 0 0 0 0 0 0 0 0 0 0 0 2002 0 0 0 0 0 0 0 0 0 0 0 0 0 2003 0 0 0 0 0 0 0 0 0 0 0 0 0 2004 0 0 0 0 0 0 0 0 0 0 0 0 0 2005 0 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 22 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 *** *** 0 0 0 6 15 11 0 1 0 0 *** 1987 0 0 0 0 2 11 21 16 0 0 0 0 50 1988 0 0 0 0 1 11 25 22 1 0 0 0 60 1989 0 0 0 0 1 10 24 15 0 0 0 0 50 1990 0 0 0 0 0 13 28 21 0 0 0 0 62 1991 0 0 0 0 0 10 25 8 0 0 0 0 43 1992 0 0 0 0 0 7 21 9 0 0 0 0 37 1993 0 0 0 0 2 7 21 16 1 0 0 0 47 1994 0 0 0 0 1 10 28 21 2 0 0 0 62 1995 0 0 0 0 0 10 26 18 1 0 0 0 55 1996 0 0 0 0 0 15 22 11 1 0 0 0 49 1997 0 0 0 0 1 18 31 15 1 0 0 0 66 1998 0 0 0 0 1 20 26 23 1 0 0 0 71 1999 0 0 0 0 1 15 19 20 1 0 0 0 56 2000 0 0 0 0 2 8 20 16 0 0 0 0 46 2001 0 0 0 0 1 12 28 15 0 0 0 0 56 2002 0 0 0 0 0 10 26 24 1 0 0 0 61 2003 0 0 0 0 0 12 31 19 1 0 0 0 63 2004 0 0 0 0 1 19 24 28 3 0 0 0 75 2005 0 0 0 0 0 14 31 21 1 0 0 0 67 MEAN 0.0 0.0 0.0 0.0 0.7 11.9 24.6 17.4 0.8 0.1 0.0 0.0 55.5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 23 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 *** *** 1 0 0 0 0 0 0 0 0 5 *** 1987 8 6 0 0 0 0 0 0 0 0 0 4 18 1988 6 2 0 0 0 0 0 0 0 0 5 6 19 1989 16 15 0 0 0 0 0 0 0 0 0 0 31 1990 9 1 2 0 0 0 0 0 0 0 0 9 21 1991 4 6 0 0 0 0 0 0 0 0 1 11 22 1992 15 8 6 0 0 0 0 0 0 0 4 4 37 1993 15 2 0 0 0 0 0 0 0 0 5 2 24 1994 3 2 0 0 0 0 0 0 0 0 0 12 17 1995 4 0 0 0 0 0 0 0 0 0 3 14 21 1996 13 0 0 0 0 0 0 0 0 0 3 5 21 1997 10 14 1 0 0 0 0 0 0 0 0 2 27 1998 9 3 0 0 0 0 0 0 0 0 0 1 13 1999 4 0 0 0 0 0 0 0 0 0 0 3 7 2000 9 4 3 0 0 0 0 0 0 0 0 0 16 2001 5 1 0 0 0 0 0 0 0 0 2 0 8 2002 9 0 1 0 0 0 0 0 0 0 0 8 18 2003 2 1 3 0 0 0 0 0 0 0 3 5 14 2004 1 0 0 0 0 0 0 0 0 0 0 4 5 2005 6 6 0 0 0 0 0 0 0 0 0 3 15 MEAN 7.8 3.7 0.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3 4.9 18.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 24 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 *** *** 8 0 0 0 0 0 0 0 6 20 *** 1987 22 11 6 0 0 0 0 0 0 0 1 15 55 1988 22 11 1 0 0 0 0 0 0 0 11 22 67 1989 29 24 1 0 0 0 0 0 0 0 3 13 70 1990 22 16 5 0 0 0 0 0 0 0 10 20 73 1991 24 22 2 0 0 0 0 0 0 0 8 19 75 1992 28 24 12 0 0 0 0 0 0 0 6 17 87 1993 27 15 6 0 0 0 0 0 0 0 9 17 74 1994 16 13 0 0 0 0 0 0 0 0 0 22 51 1995 25 12 5 0 0 0 0 0 0 0 11 25 78 1996 25 10 2 0 0 0 0 0 0 0 8 19 64 1997 21 23 8 0 0 0 0 0 0 0 5 14 71 1998 22 13 5 0 0 0 0 0 0 0 1 20 61 1999 17 12 2 0 0 0 0 0 0 0 1 18 50 2000 24 20 9 0 0 0 0 0 0 0 4 12 69 2001 25 12 2 0 0 0 0 0 0 0 5 8 52 2002 21 8 8 0 0 0 0 0 0 0 4 17 58 2003 15 9 5 0 0 0 0 0 0 0 9 14 52 2004 10 9 1 0 0 0 0 0 0 0 4 18 42 2005 22 17 1 0 0 0 0 0 0 0 5 9 54 MEAN 21.9 14.8 4.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.5 16.9 63.5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 25 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MONTHLY TOTAL OF PRECIPITATION IN MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 73.6 19.3 43.3 0.0 0.1 0.0 0.0 0.0 40.5 28.3 ****** 1987 0.7 13.2 33.5 3.4 5.6 0.0 5.0 0.1 3.8 32.0 2.9 15.0 115.2 1988 9.2 14.3 9.6 26.7 0.2 0.0 6.0 0.0 0.0 2.8 2.0 8.6 79.4 1989 30.4 32.4 16.3 0.4 5.6 8.0 0.0 0.0 0.0 0.0 7.2 38.5 138.8 1990 25.3 27.5 1.0 6.4 0.4 0.0 0.8 0.0 0.0 13.0 0.0 16.0 90.4 1991 19.4 30.1 40.0 16.6 3.8 0.0 0.0 0.0 0.0 3.5 0.8 15.3 129.5 1992 11.4 21.2 61.6 30.2 45.8 4.4 0.0 0.0 0.0 0.0 2.0 8.5 185.1 1993 45.0 64.8 26.3 11.0 12.4 0.0 0.0 0.0 0.0 2.8 25.0 6.2 193.5 1994 9.6 38.2 25.6 18.6 31.0 0.0 0.0 0.0 0.0 31.6 42.6 4.8 202.0 1995 5.2 23.8 10.8 20.0 12.6 0.2 0.0 0.0 2.0 0.0 0.0 10.5 85.1 1996 30.8 57.3 64.4 38.1 6.2 2.0 0.4 0.0 0.0 3.0 3.0 1.0 206.2 1997 3.6 2.0 14.2 12.2 4.7 5.1 0.0 0.0 0.0 2.3 12.0 20.0 76.1 1998 21.6 19.0 52.4 19.2 4.7 0.0 0.6 8.4 0.4 9.4 0.4 6.0 142.1 1999 41.6 14.7 19.7 8.2 0.0 0.0 2.5 0.0 0.0 1.9 60.5 14.5 163.6 2000 31.8 7.1 2.2 10.8 0.2 0.0 0.0 0.0 3.0 19.0 18.3 82.7 175.1 2001 37.6 10.3 14.3 1.0 16.3 9.0 0.0 0.0 1.0 0.9 9.9 51.2 151.5 2002 28.0 3.1 6.0 66.4 4.0 0.0 0.0 0.0 0.0 2.8 26.0 13.4 149.7 2003 29.8 15.6 35.2 35.6 15.2 0.0 0.0 0.0 0.0 1.0 6.2 26.8 165.4 2004 70.2 0.0 9.5 39.0 23.6 0.0 2.0 0.0 0.0 0.2 23.3 9.6 177.4 2005 40.9 18.5 45.2 9.1 0.9 0.0 0.0 0.0 0.0 0.0 22.3 9.5 146.4 MEAN 25.9 21.7 28.1 19.6 11.8 1.4 0.9 0.4 0.5 6.3 15.2 19.3 151.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 26 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M GREATEST DAILY OF PRECIPITATION IN MM. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 40.0 8.0 22.0 0.0 0.1 0.0 0.0 0.0 15.0 24.0 ****** DAY ** ** 8 11 4 ** 22 ** ** ** 29 20 1987 0.7 5.7 10.1 3.1 2.0 0.0 3.0 0.1 3.8 8.6 2.0 6.0 10.1 DAY 6 27 4 11 5 ** 28 5 21 26 29 24 1988 4.4 4.0 5.0 9.6 0.1 0.0 4.0 0.0 0.0 2.8 1.0 6.1 9.6 DAY 18 24 4 13 2 ** 11 ** ** 16 14 17 1989 8.1 9.3 6.0 0.3 5.4 8.0 0.0 0.0 0.0 0.0 4.0 18.6 18.6 DAY 29 22 16 29 7 7 ** ** ** ** 12 4 1990 9.4 10.0 0.6 4.0 0.2 0.0 0.6 0.0 0.0 6.0 0.0 13.0 13.0 DAY 8 10 27 2 12 ** 7 ** ** 27 ** 25 1991 7.0 11.0 18.0 13.6 3.0 0.0 0.0 0.0 0.0 2.2 0.8 5.0 18.0 DAY 3 22 25 4 17 ** ** ** ** 16 16 25 1992 6.0 18.0 26.0 15.2 15.3 4.0 0.0 0.0 0.0 0.0 2.0 5.0 26.0 DAY 3 25 9 27 6 4 ** ** ** ** 8 30 1993 17.8 17.0 9.6 3.8 6.0 0.0 0.0 0.0 0.0 2.0 8.0 2.0 17.8 DAY 8 2 8 26 13 ** ** ** ** 28 27 1 1994 4.2 21.0 14.0 14.0 20.0 0.0 0.0 0.0 0.0 9.0 14.0 4.0 21.0 DAY 16 1 12 30 6 ** ** ** ** 18 25 1 1995 3.4 14.2 9.0 8.0 5.0 0.2 0.0 0.0 2.0 0.0 0.0 4.0 14.2 DAY 18 23 17 24 27 2 ** ** 20 ** ** 12 1996 7.6 17.2 20.0 23.5 2.0 2.0 0.4 0.0 0.0 3.0 3.0 1.0 23.5 DAY 6 5 2 3 12 26 10 ** ** 16 16 22 1997 3.2 2.0 7.0 4.0 2.0 4.0 0.0 0.0 0.0 1.0 4.0 10.0 10.0 DAY 28 19 29 5 21 15 ** ** ** 12 3 14 1998 10.0 7.0 18.0 7.0 2.0 0.0 0.4 5.0 0.4 5.0 0.4 6.0 18.0 DAY 5 12 1 5 4 ** 30 2 14 11 16 3 1999 24.0 8.0 10.0 5.2 0.0 0.0 2.0 0.0 0.0 1.0 35.0 12.0 35.0 DAY 21 6 2 27 ** ** 14 ** ** 31 8 10 2000 25.0 6.0 2.1 10.4 0.2 0.0 0.0 0.0 3.0 7.7 11.0 28.0 28.0 DAY 28 14 23 21 7 ** ** ** 30 17 6 1 2001 18.4 7.0 8.0 1.0 8.0 7.0 0.0 0.0 1.0 0.6 7.0 15.0 18.4 DAY 24 19 10 24 3 12 ** ** 21 23 12 1 2002 9.0 2.5 3.8 26.0 4.0 0.0 0.0 0.0 0.0 2.0 18.0 5.0 26.0 DAY 11 19 28 12 4 ** ** ** ** 31 16 19 2003 10.0 5.0 11.0 12.0 14.0 0.0 0.0 0.0 0.0 1.0 5.0 13.0 14.0 DAY 19 5 26 16 29 ** ** ** ** 30 29 2 2004 22.0 0.0 5.0 15.0 14.0 0.0 2.0 0.0 0.0 0.2 17.0 6.0 22.0 DAY 7 ** 20 17 29 ** 12 ** ** 16 19 9 2005 16.1 6.0 25.0 8.0 0.4 0.0 0.0 0.0 0.0 0.0 11.9 4.0 25.0 DAY 10 10 12 27 26 ** ** ** ** ** 8 24 1986-2005 25.0 21.0 40.0 26.0 22.0 8.0 4.0 5.0 3.8 9.0 35.0 28.0 40.0 YEAR-DAY 0-28 94- 1 86- 8 2-12 86- 4 89- 7 88-11 98- 2 87-21 94-18 99- 8 0- 1 86 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 27 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 *** *** 2 0 2 0 0 0 0 0 2 1 *** 1987 0 0 1 0 0 0 0 0 0 0 0 0 1 1988 0 0 0 0 0 0 0 0 0 0 0 0 0 1989 0 0 0 0 0 0 0 0 0 0 0 1 1 1990 0 1 0 0 0 0 0 0 0 0 0 1 2 1991 0 1 1 1 0 0 0 0 0 0 0 0 3 1992 0 1 1 1 1 0 0 0 0 0 0 0 4 1993 2 4 0 0 0 0 0 0 0 0 0 0 6 1994 0 2 1 1 1 0 0 0 0 0 2 0 7 1995 0 1 0 0 0 0 0 0 0 0 0 0 1 1996 0 3 1 1 0 0 0 0 0 0 0 0 5 1997 0 0 0 0 0 0 0 0 0 0 0 1 1 1998 1 0 2 0 0 0 0 0 0 0 0 0 3 1999 1 0 1 0 0 0 0 0 0 0 2 1 5 2000 1 0 0 1 0 0 0 0 0 0 1 3 6 2001 1 0 0 0 0 0 0 0 0 0 0 3 4 2002 0 0 0 3 0 0 0 0 0 0 1 0 4 2003 1 0 1 1 1 0 0 0 0 0 0 1 5 2004 4 0 0 1 1 0 0 0 0 0 1 0 7 2005 1 0 1 0 0 0 0 0 0 0 1 0 3 MEAN 0.6 0.7 0.6 0.5 0.3 0.0 0.0 0.0 0.0 0.0 0.5 0.6 3.8 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 28 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 *** *** 2 2 3 0 0 0 0 0 3 1 *** 1987 0 1 2 0 0 0 0 0 0 2 0 2 7 1988 0 0 1 1 0 0 0 0 0 0 0 1 3 1989 3 4 1 0 1 1 0 0 0 0 0 3 13 1990 2 2 0 0 0 0 0 0 0 2 0 1 7 1991 1 3 2 1 0 0 0 0 0 0 0 1 8 1992 1 1 5 2 3 0 0 0 0 0 0 1 13 1993 2 4 3 0 2 0 0 0 0 0 2 0 13 1994 0 2 2 1 2 0 0 0 0 3 4 0 14 1995 0 2 1 1 1 0 0 0 0 0 0 0 5 1996 4 4 4 2 0 0 0 0 0 0 0 0 14 1997 0 0 1 0 0 0 0 0 0 0 0 1 2 1998 1 1 5 2 0 0 0 1 0 1 0 1 12 1999 2 1 2 1 0 0 0 0 0 0 3 1 10 2000 2 1 0 1 0 0 0 0 0 2 1 5 12 2001 3 1 1 0 2 1 0 0 0 0 1 4 13 2002 3 0 0 4 0 0 0 0 0 0 1 1 9 2003 3 2 3 3 1 0 0 0 0 0 1 2 15 2004 4 0 1 3 1 0 0 0 0 0 1 1 11 2005 4 2 3 1 0 0 0 0 0 0 2 0 12 MEAN 1.8 1.6 1.9 1.2 0.8 0.1 0.0 0.1 0.0 0.5 1.0 1.3 10.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 29 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 *** *** 7 5 4 0 0 0 0 0 5 2 *** 1987 0 4 6 1 3 0 2 0 1 8 1 4 30 1988 2 4 3 5 0 0 2 0 0 1 1 3 21 1989 6 6 5 0 1 1 0 0 0 0 4 4 27 1990 6 6 0 2 0 0 0 0 0 3 0 2 19 1991 5 5 5 2 1 0 0 0 0 1 0 4 23 1992 4 2 7 4 8 1 0 0 0 0 1 2 29 1993 5 9 4 4 3 0 0 0 0 1 6 3 35 1994 3 2 4 3 3 0 0 0 0 8 8 1 32 1995 1 3 2 6 4 0 0 0 1 0 0 3 20 1996 6 10 12 6 3 1 0 0 0 1 1 1 41 1997 1 1 6 4 3 1 0 0 0 2 4 5 27 1998 6 7 8 5 3 0 0 3 0 2 0 1 35 1999 6 3 4 2 0 0 1 0 0 1 4 2 23 2000 3 1 1 1 0 0 0 0 1 4 4 7 22 2001 6 3 3 0 2 2 0 0 1 0 2 5 24 2002 6 1 2 8 1 0 0 0 0 1 4 3 26 2003 5 4 7 7 1 0 0 0 0 1 1 4 30 2004 6 0 4 7 4 0 1 0 0 0 3 2 27 2005 7 3 5 2 0 0 0 0 0 0 4 4 25 MEAN 4.4 3.9 4.7 3.7 2.2 0.3 0.3 0.2 0.2 1.7 2.6 3.1 27.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 30 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M NO. OF DAYS WITH PRECIPITATION YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 13 6 6 0 1 0 0 0 6 3 *** 1987 1 10 12 3 4 0 2 1 1 13 3 6 56 1988 8 9 5 9 2 0 2 0 0 1 3 4 43 1989 9 8 8 2 4 1 0 0 0 0 4 6 42 1990 13 8 3 4 2 0 2 0 0 3 0 2 37 1991 5 7 10 2 2 0 0 0 0 4 1 7 38 1992 8 4 9 7 12 2 0 0 0 0 1 5 48 1993 6 10 6 7 5 0 0 0 0 2 8 4 48 1994 6 3 5 11 3 0 0 0 0 9 10 5 52 1995 5 4 2 7 6 1 0 0 1 0 0 5 31 1996 9 13 15 9 6 1 1 0 0 2 1 1 58 1997 2 1 7 5 4 5 0 0 0 3 4 6 37 1998 8 8 9 6 7 0 2 3 1 2 1 1 48 1999 6 5 6 5 0 0 3 0 0 4 4 5 38 2000 5 4 4 3 1 0 0 0 1 4 7 9 38 2001 8 3 5 2 6 2 0 0 2 2 4 11 45 2002 6 6 8 10 1 0 0 0 0 2 5 9 47 2003 5 7 12 10 6 0 0 0 0 2 3 7 52 2004 7 2 5 8 9 0 3 0 0 1 9 5 49 2005 7 9 7 6 7 0 0 2 0 0 9 6 53 MEAN 6.5 6.4 7.5 6.1 4.6 0.6 0.8 0.3 0.3 2.7 4.1 5.3 45.2 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 31 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M NO. OF DAYS WITH THUNDER STORM YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 0 1 3 0 0 0 0 0 0 0 *** 1987 0 0 0 0 2 0 0 0 0 1 0 0 3 1988 0 0 0 2 1 1 1 0 0 0 0 0 5 1989 0 0 1 0 0 0 0 0 0 0 0 0 1 1990 0 0 0 0 0 0 0 0 0 1 0 0 1 1991 0 0 0 0 0 0 0 0 0 1 0 0 1 1992 0 0 0 1 5 1 0 0 0 0 0 0 7 1993 0 0 0 1 1 0 0 0 1 0 0 0 3 1994 0 0 1 6 2 0 0 0 0 2 2 0 13 1995 0 0 0 2 1 0 0 0 1 0 0 0 4 1996 0 0 0 1 3 0 0 0 0 0 0 0 4 1997 0 0 0 0 2 3 0 0 0 0 0 0 5 1998 0 0 0 3 4 0 1 0 1 1 0 0 10 1999 0 0 0 2 0 0 0 0 0 1 0 0 3 2000 0 0 0 1 0 0 0 0 1 0 0 0 2 2001 0 0 1 0 1 0 0 0 2 0 0 0 4 2002 0 0 0 1 0 0 0 0 0 0 0 0 1 2003 0 0 0 0 2 0 0 0 0 1 0 0 3 2004 0 0 0 1 2 0 0 0 0 0 0 0 3 2005 0 0 0 0 1 0 0 0 0 0 1 0 2 MEAN 0.0 0.0 0.2 1.1 1.5 0.3 0.1 0.0 0.3 0.4 0.2 0.0 4.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 32 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M NO. OF DAYS WITH SNOW OR SLEET YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 3 0 0 0 0 0 0 0 0 3 *** 1987 0 0 0 0 0 0 0 0 0 0 0 1 1 1988 1 2 0 0 0 0 0 0 0 0 0 2 5 1989 8 6 0 0 0 0 0 0 0 0 0 0 14 1990 7 4 0 0 0 0 0 0 0 0 0 1 12 1991 2 3 0 0 0 0 0 0 0 0 0 3 8 1992 5 0 2 0 0 0 0 0 0 0 0 1 8 1993 5 0 0 0 0 0 0 0 0 0 1 0 6 1994 1 1 0 0 0 0 0 0 0 0 0 1 3 1995 0 0 0 0 0 0 0 0 0 0 0 1 1 1996 6 3 0 0 0 0 0 0 0 0 0 0 9 1997 1 0 1 0 0 0 0 0 0 0 0 0 2 1998 4 3 2 0 0 0 0 0 0 0 0 0 9 1999 1 1 0 0 0 0 0 0 0 0 1 1 4 2000 1 0 0 0 0 0 0 0 0 0 0 0 1 2001 5 0 0 0 0 0 0 0 0 0 0 0 5 2002 2 1 0 0 0 0 0 0 0 0 0 2 5 2003 3 1 0 0 0 0 0 0 0 0 0 1 5 2004 2 0 0 0 0 0 0 0 0 0 0 0 2 2005 5 4 0 0 0 0 0 0 0 0 1 1 11 MEAN 3.1 1.5 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.9 6.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 33 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M NO. OF DAYS WITH DUST YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 0 1 0 0 0 1 0 0 0 0 *** 1987 2 0 0 1 1 2 0 0 2 0 0 0 8 1988 1 0 5 2 0 0 3 1 0 0 1 0 13 1989 0 1 0 2 1 1 2 1 0 1 0 0 9 1990 1 1 1 2 2 1 4 1 0 0 0 0 13 1991 3 1 0 0 6 2 5 2 0 0 0 0 19 1992 0 4 2 3 2 0 2 2 0 0 2 2 19 1993 0 0 0 2 0 1 0 0 0 0 2 1 6 1994 3 1 1 3 2 0 1 1 1 1 0 0 14 1995 0 0 3 2 3 0 1 0 1 0 3 0 13 1996 1 1 0 1 0 0 3 0 4 1 1 0 12 1997 1 0 2 2 0 2 0 0 0 1 3 2 13 1998 2 2 1 0 0 2 3 0 0 0 0 0 10 1999 1 0 0 0 0 1 0 0 1 0 1 1 5 2000 0 0 2 2 3 2 0 0 0 0 0 1 10 2001 1 1 0 1 2 1 0 2 0 0 1 0 9 2002 2 1 4 4 1 0 2 0 0 0 3 0 17 2003 0 1 1 2 1 2 1 1 1 0 1 3 14 2004 0 1 0 0 1 1 1 0 0 0 0 0 4 2005 0 0 0 0 1 0 1 1 0 0 0 0 3 MEAN 0.9 0.8 1.1 1.5 1.3 0.9 1.4 0.7 0.5 0.2 0.9 0.5 10.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 34 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M PREVAILING WIND DIRECTION , SPEED (IN KNOTS) AND PERCENT YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 90 270 270 90 90 90 90 270 270 270 *** PREVAIL. DIRECT. ***** ***** 5.6 6.6 6.9 8.5 7.6 7.3 4.5 5.3 6.3 8.0 ***** PREVAIL. SPEED ***** ***** 17.6 20.8 32.7 22.9 46.8 38.7 16.3 20.6 14.2 15.3 ***** PREVAIL. PERCENT ***** ***** 55.3 44.6 33.5 32.9 35.5 41.1 59.6 54.4 69.6 75.0 ***** CALMS PERCENT **** **** 188 240 248 240 248 248 240 248 240 248 2388 WIND OBSER. NO. 1987 270 270 270 270 270 90 90 90 90 270 270 270 270 PREVAIL. DIRECT. 7.8 6.4 7.0 7.3 8.4 9.0 8.2 7.5 7.0 6.8 6.4 6.9 7.3 PREVAIL. SPEED 16.9 10.6 23.8 24.6 29.0 41.3 29.4 28.6 22.1 9.7 8.3 16.9 15.4 PREVAIL. PERCENT 67.7 70.6 50.4 47.1 39.5 31.3 37.9 46.4 55.0 69.8 80.8 70.6 55.5 CALMS PERCENT 248 218 248 240 248 240 248 248 240 248 240 248 2914 WIND OBSER. NO. 1988 270 270 270 270 270 270 90 90 90 90 270 270 270 PREVAIL. DIRECT. 8.2 6.1 9.1 7.3 8.4 8.0 10.5 8.8 7.6 6.0 7.8 7.5 7.7 PREVAIL. SPEED 25.8 29.3 29.4 19.2 36.3 21.7 31.9 35.5 17.5 13.7 12.9 20.2 18.9 PREVAIL. PERCENT 61.7 53.9 45.6 47.1 35.1 31.3 42.3 44.4 60.4 67.7 72.1 71.4 52.7 CALMS PERCENT 248 232 248 240 248 240 248 248 240 248 240 248 2928 WIND OBSER. NO. 1989 270 270 270 270 270 90 90 90 90 315 270 270 270 PREVAIL. DIRECT. 8.6 8.4 10.0 8.8 8.7 8.6 10.8 9.4 6.6 7.5 6.7 8.1 8.5 PREVAIL. SPEED 23.4 42.4 28.6 27.5 22.2 15.8 42.3 49.2 17.9 15.3 14.2 12.5 18.4 PREVAIL. PERCENT 64.9 40.2 42.3 37.1 43.5 41.3 37.4 33.9 45.0 50.0 68.8 75.4 48.4 CALMS PERCENT 248 224 248 240 248 240 246 248 240 248 240 248 2918 WIND OBSER. NO. 1990 270 270 270 270 270 270 90 90 90 270 270 270 270 PREVAIL. DIRECT. 8.5 9.2 9.4 7.6 9.1 8.0 10.1 11.0 7.6 8.3 6.6 7.1 8.0 PREVAIL. SPEED 17.7 25.4 19.8 36.3 31.0 24.2 44.8 38.7 19.6 16.1 9.2 13.7 18.1 PREVAIL. PERCENT 68.1 52.2 45.6 32.5 29.4 36.3 32.7 41.5 55.0 59.3 74.6 64.9 49.3 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1991 270 270 270 315 315 90 90 90 90 90 270 270 90 PREVAIL. DIRECT. 9.1 7.2 9.1 10.4 10.8 11.0 12.2 10.9 9.5 9.0 7.3 7.8 10.2 PREVAIL. SPEED 6.9 20.1 15.7 20.0 34.1 26.3 47.2 34.3 23.3 10.5 9.2 17.3 15.0 PREVAIL. PERCENT 79.8 63.8 55.6 40.8 24.0 35.4 32.7 54.0 48.8 64.5 67.1 69.0 53.6 CALMS PERCENT 248 224 248 240 179 240 248 248 240 248 240 248 2851 WIND OBSER. NO. 1992 270 270 270 270 270 270 90 90 90 270 270 270 270 PREVAIL. DIRECT. 7.8 11.3 11.2 9.9 9.8 10.5 10.3 10.8 8.3 6.5 6.7 6.5 9.3 PREVAIL. SPEED 27.0 27.6 30.6 27.9 15.3 23.3 31.5 37.9 17.9 14.5 14.2 10.5 17.3 PREVAIL. PERCENT 56.0 39.7 44.4 30.8 44.0 40.0 40.7 44.0 54.2 59.1 61.3 71.8 48.9 CALMS PERCENT 248 232 248 240 248 240 248 248 240 242 240 248 2922 WIND OBSER. NO. 1993 270 270 270 270 270 270 90 90 90 90 270 270 270 PREVAIL. DIRECT. 7.0 6.6 7.5 9.5 9.0 8.3 9.7 9.1 8.5 7.5 7.8 7.7 7.8 PREVAIL. SPEED 22.2 20.1 17.7 24.2 29.8 16.7 39.1 35.9 20.8 14.1 10.8 8.1 14.7 PREVAIL. PERCENT 64.5 60.3 48.8 40.0 30.6 40.8 35.5 42.3 49.6 64.5 69.2 79.8 52.1 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1994 270 270 270 315 315 90 90 90 90 90 315 270 90 PREVAIL. DIRECT. 9.1 8.5 8.7 12.5 8.7 9.0 10.0 10.5 9.1 7.6 6.4 10.8 8.9 PREVAIL. SPEED 18.5 19.2 21.4 17.9 19.4 17.9 37.1 37.1 26.7 10.9 12.9 14.1 14.2 PREVAIL. PERCENT 64.9 54.5 47.6 48.8 40.3 41.3 48.0 48.4 60.8 61.7 64.6 69.0 54.1 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1995 270 270 270 315 315 315 90 90 90 90 270 270 90 PREVAIL. DIRECT. 7.3 7.4 9.0 9.2 10.0 8.5 9.9 9.7 7.5 6.6 10.5 6.7 8.5 PREVAIL. SPEED 11.3 15.6 18.5 20.0 18.1 21.3 27.4 32.3 17.9 11.3 15.4 6.9 11.7 PREVAIL. PERCENT 71.8 57.1 50.8 40.4 50.0 40.8 53.2 51.2 54.2 64.1 62.1 82.3 56.6 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1996 270 270 270 315 315 90 90 90 270 90 90 270 90 PREVAIL. DIRECT. 5.5 8.0 8.2 9.9 7.7 9.1 9.9 9.4 7.5 7.4 6.9 7.4 8.6 PREVAIL. SPEED 12.9 20.7 14.9 20.0 14.9 26.3 36.7 33.1 14.6 10.9 7.5 15.3 13.1 PREVAIL. PERCENT 71.4 56.5 55.6 46.7 50.0 37.5 46.0 41.9 63.3 64.5 76.3 69.4 56.6 CALMS PERCENT 248 232 248 240 248 240 248 248 240 248 240 248 2928 WIND OBSER. NO. 1997 270 270 270 270 270 90 90 90 270 270 90 270 270 PREVAIL. DIRECT. 9.1 10.1 10.0 11.2 8.7 11.1 9.4 8.4 7.8 7.6 5.8 6.4 8.9 PREVAIL. SPEED 10.9 21.0 25.8 16.3 21.4 14.6 34.3 34.7 15.0 17.3 4.6 6.5 12.9 PREVAIL. PERCENT 71.0 55.4 44.8 50.0 44.8 38.3 50.4 52.0 52.9 61.3 83.3 86.3 57.6 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1998 270 270 270 270 315 90 90 90 90 270 270 90 90 PREVAIL. DIRECT. 8.0 9.9 8.7 8.4 10.5 9.5 10.0 8.5 6.9 5.5 6.2 5.8 8.3 PREVAIL. SPEED 25.0 23.2 30.2 19.6 13.3 36.7 30.2 26.6 17.5 10.1 7.1 4.0 13.0 PREVAIL. PERCENT 62.9 51.3 41.9 52.9 48.8 48.8 39.1 59.7 64.6 67.7 78.8 88.3 58.8 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1999 315 315 270 315 315 90 90 90 90 270 270 270 90 PREVAIL. DIRECT. 8.7 10.6 8.4 9.6 12.2 9.1 10.1 9.0 10.0 8.1 7.8 7.4 9.0 PREVAIL. SPEED 10.1 12.9 11.3 15.4 16.5 19.6 27.8 29.0 10.0 9.3 12.1 12.1 10.3 PREVAIL. PERCENT 75.8 67.9 66.5 49.6 51.2 43.3 52.0 58.5 69.2 68.1 70.8 77.0 62.5 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 2000 270 270 270 270 270 90 90 90 90 270 90 270 270 PREVAIL. DIRECT. 8.9 8.5 11.4 10.4 8.6 8.4 9.2 8.3 8.2 6.1 5.6 6.8 8.8 PREVAIL. SPEED 17.7 22.0 21.8 26.7 27.0 23.3 32.3 23.4 16.3 7.7 7.9 14.1 13.0 PREVAIL. PERCENT 67.3 51.7 48.0 39.6 33.5 52.9 50.4 56.5 65.4 73.8 78.8 77.0 57.9 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 90 90 90 90 270 270 270 PREVAIL. DIRECT. 6.1 8.2 7.9 9.3 8.9 8.4 9.7 7.2 7.9 7.0 7.6 6.3 8.1 PREVAIL. SPEED 9.7 20.1 16.5 24.6 19.0 13.3 27.4 19.8 12.9 9.3 11.7 6.5 12.5 PREVAIL. PERCENT 78.6 58.5 59.7 49.2 48.4 51.7 51.2 55.2 59.2 68.1 76.3 85.1 61.8 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 90 90 90 270 270 270 270 PREVAIL. DIRECT. 8.2 8.3 9.5 8.6 10.0 9.6 10.2 8.3 8.5 7.0 6.9 9.5 8.6 PREVAIL. SPEED 12.9 25.9 16.1 22.5 18.1 20.4 37.5 28.2 11.7 10.5 15.8 12.5 14.1 PREVAIL. PERCENT 73.8 50.9 63.7 51.7 50.8 37.9 40.3 51.2 69.2 67.3 71.7 69.8 58.3 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 2003 270 270 270 270 315 270 90 90 90 270 270 270 270 PREVAIL. DIRECT. 8.1 8.3 10.9 7.8 11.7 9.4 9.4 9.6 8.2 8.2 8.7 8.5 8.7 PREVAIL. SPEED 28.2 27.7 23.4 20.4 14.1 16.3 30.2 33.9 20.8 22.2 18.8 12.1 17.3 PREVAIL. PERCENT 59.3 43.8 49.2 45.0 38.3 46.3 36.3 48.8 57.5 54.0 61.3 71.0 50.9 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 2004 270 270 270 270 270 90 90 90 90 270 270 270 270 PREVAIL. DIRECT. 8.8 10.8 8.6 9.9 10.6 10.5 10.5 10.3 8.7 7.9 8.7 8.1 9.2 PREVAIL. SPEED 16.5 27.6 23.4 22.1 31.9 25.0 28.6 35.5 20.8 15.3 21.7 20.2 18.1 PREVAIL. PERCENT 63.7 46.6 41.9 35.0 25.8 25.4 30.6 39.5 50.0 59.7 53.3 60.1 44.3 CALMS PERCENT 248 232 248 240 248 240 248 248 240 248 240 248 2928 WIND OBSER. NO. 2005 270 270 270 270 270 90 90 90 90 270 270 270 270 PREVAIL. DIRECT. 8.6 7.9 10.0 9.9 10.0 9.7 9.2 9.7 7.9 7.1 7.4 6.9 8.4 PREVAIL. SPEED 33.9 23.2 37.5 22.9 17.3 23.8 46.0 31.9 23.8 21.0 21.7 22.2 20.5 PREVAIL. PERCENT 44.0 40.6 25.4 30.4 31.5 28.3 24.2 35.9 40.0 43.1 55.8 51.6 37.5 CALMS PERCENT 248 224 248 240 248 240 248 248 240 248 240 248 2920 WIND OBSER. NO. 1986-2005 270 270 270 270 270 90 90 90 90 270 270 270 270 PREVAIL. DIRECT. 8.1 8.5 9.3 8.8 9.0 9.2 9.9 9.3 7.9 7.1 7.4 7.6 8.3 PREVAIL. SPEED 18.2 22.8 21.9 21.7 21.7 20.0 35.4 33.2 17.6 12.4 12.1 13.0 14.8 PREVAIL. PERCENT MEAN 66.7 53.4 49.1 43.0 39.9 39.1 40.8 47.3 56.7 62.2 69.8 73.2 53.4 CALMS PERCENT MEAN 248.0 225.8 245.0 240.0 244.5 240.0 247.9 248.0 240.0 247.7 240.0 248.0 2914.9 WIND OBSER. NO. =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 35 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M VECTOR WIND DIRECTION , MAGNITUDE (IN KNOTS) AND WIND STEADINESES (%) YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 59 302 285 68 84 85 81 281 270 275 *** VECTOR DIRECT. **** **** 0.7 0.2 2.0 0.7 3.7 3.3 0.2 0.5 0.8 1.2 **** WIND MAGNITUDE ***** ***** 28.0 5.7 47.6 16.3 84.1 80.5 11.1 21.7 47.1 66.7 ***** STEADINESES(%) 1987 274 271 268 264 278 85 68 82 69 314 289 269 313 VECTOR DIRECT. 1.3 0.4 1.8 2.6 1.9 3.2 1.9 2.0 0.9 0.5 0.3 1.3 0.2 WIND MAGNITUDE 61.9 23.5 56.2 63.4 43.2 57.1 40.4 54.1 29.0 26.3 25.0 72.2 6.5 STEADINESES(%) 1988 276 279 279 297 282 318 81 82 66 4 260 270 302 VECTOR DIRECT. 2.0 1.8 2.7 2.4 2.7 1.2 3.4 2.8 0.5 0.3 0.7 1.5 0.7 WIND MAGNITUDE 69.0 64.3 60.0 57.1 49.1 21.4 66.7 59.6 18.5 15.0 35.0 75.0 18.9 STEADINESES(%) 1989 278 283 282 290 290 323 95 95 325 304 283 282 302 VECTOR DIRECT. 2.2 4.4 3.3 3.0 1.7 0.5 4.6 5.3 1.0 1.3 1.0 1.1 0.8 WIND MAGNITUDE 75.9 89.8 66.0 54.5 37.0 10.2 74.2 89.8 24.4 34.2 50.0 61.1 18.6 STEADINESES(%) 1990 282 287 284 288 294 300 90 92 84 297 281 298 312 VECTOR DIRECT. 1.8 3.1 2.1 3.9 3.1 1.3 4.8 4.4 1.2 1.2 0.7 1.1 0.8 WIND MAGNITUDE 72.0 75.6 46.7 68.4 47.7 25.5 78.7 77.2 38.7 38.7 46.7 45.8 19.0 STEADINESES(%) 1991 288 287 298 297 306 65 91 92 72 349 271 283 2 VECTOR DIRECT. 0.9 1.9 1.6 2.9 4.9 2.1 6.1 4.1 1.3 0.2 0.6 1.8 0.6 WIND MAGNITUDE 60.0 73.1 44.4 55.8 67.1 34.4 81.3 91.1 29.5 7.4 25.0 78.3 14.3 STEADINESES(%) 1992 283 284 283 293 301 295 84 85 70 300 281 294 302 VECTOR DIRECT. 2.7 5.5 4.3 4.8 2.1 1.9 3.6 4.5 0.6 0.5 1.1 0.9 1.3 WIND MAGNITUDE 81.8 82.1 72.9 65.8 41.2 31.1 62.1 81.8 16.7 17.2 42.3 42.9 27.1 STEADINESES(%) 1993 283 288 304 285 296 314 91 87 74 47 303 275 328 VECTOR DIRECT. 1.7 2.0 0.9 3.0 3.5 1.5 3.9 3.4 1.5 0.4 1.0 0.8 0.6 WIND MAGNITUDE 70.8 71.4 22.5 52.6 54.7 27.8 68.4 69.4 37.5 16.0 45.5 61.5 15.4 STEADINESES(%) 1994 286 278 282 296 301 340 82 88 77 308 293 282 332 VECTOR DIRECT. 2.2 2.2 2.5 2.8 2.1 1.6 4.0 4.3 2.5 0.6 1.1 1.7 0.7 WIND MAGNITUDE 75.9 64.7 56.8 59.6 43.7 29.1 80.0 84.3 73.5 20.0 45.8 63.0 17.5 STEADINESES(%) 1995 287 296 295 295 309 308 79 81 9 15 285 290 324 VECTOR DIRECT. 1.4 1.4 2.4 2.0 1.8 2.5 2.3 3.3 0.9 0.5 1.7 0.3 0.9 WIND MAGNITUDE 66.7 43.7 54.5 39.2 39.1 48.1 54.8 75.0 23.1 20.8 53.1 27.3 25.0 STEADINESES(%) 1996 293 288 297 313 316 86 90 91 283 331 359 285 357 VECTOR DIRECT. 0.8 1.6 1.6 2.8 1.2 1.5 4.2 3.0 0.7 0.4 0.4 1.5 0.5 WIND MAGNITUDE 47.1 48.5 43.2 57.1 30.0 25.4 84.0 62.5 26.9 15.4 23.5 62.5 13.9 STEADINESES(%) 1997 293 293 279 283 285 13 85 87 308 289 26 291 306 VECTOR DIRECT. 1.5 2.4 3.2 3.2 2.4 0.4 3.4 3.5 1.2 2.0 0.3 0.6 0.9 WIND MAGNITUDE 60.0 57.1 60.4 66.7 48.0 7.0 77.3 87.5 32.4 69.0 33.3 66.7 24.3 STEADINESES(%) 1998 286 289 286 288 328 88 80 89 74 7 296 64 344 VECTOR DIRECT. 2.6 2.8 3.3 3.1 1.4 4.0 2.9 2.7 0.9 0.5 0.4 0.1 0.5 WIND MAGNITUDE 86.7 63.6 67.3 72.1 31.8 87.0 51.8 84.4 39.1 23.8 30.8 16.7 14.7 STEADINESES(%) 1999 302 295 293 301 305 12 84 90 75 304 291 286 331 VECTOR DIRECT. 1.2 1.8 1.5 1.9 2.5 0.6 3.3 2.9 0.6 1.1 1.3 0.9 0.7 WIND MAGNITUDE 70.6 64.3 51.7 42.2 48.1 11.3 71.7 78.4 22.2 44.0 59.1 56.3 21.2 STEADINESES(%) 2000 278 286 283 285 291 69 93 92 82 357 65 280 307 VECTOR DIRECT. 1.7 3.1 2.7 4.3 3.8 1.8 3.9 2.6 1.1 0.1 0.2 1.0 0.7 WIND MAGNITUDE 63.0 73.8 51.9 72.9 64.4 41.9 92.9 76.5 44.0 6.7 18.2 71.4 20.0 STEADINESES(%) 2001 289 285 288 284 283 354 92 73 354 316 284 282 300 VECTOR DIRECT. 0.6 2.4 2.3 2.9 2.2 0.6 3.0 1.0 0.4 0.5 1.4 0.4 0.8 WIND MAGNITUDE 40.0 72.7 74.2 67.4 50.0 15.8 69.8 31.3 12.5 20.8 73.7 50.0 26.7 STEADINESES(%) 2002 292 284 283 281 287 299 92 88 80 285 285 287 297 VECTOR DIRECT. 1.6 3.5 2.5 2.9 2.7 1.4 4.7 2.5 0.5 0.8 1.4 1.4 0.9 WIND MAGNITUDE 76.2 83.3 71.4 65.9 58.7 23.7 83.9 65.8 20.8 34.8 70.0 53.8 25.0 STEADINESES(%) 2003 277 289 281 280 313 352 85 89 90 266 289 296 298 VECTOR DIRECT. 2.6 3.2 3.0 2.4 1.2 0.7 2.2 3.9 1.1 2.1 2.1 1.0 0.9 WIND MAGNITUDE 81.2 68.1 62.5 51.1 21.1 14.6 39.3 84.8 33.3 55.3 61.8 41.7 21.4 STEADINESES(%) 2004 278 272 289 263 283 82 96 91 92 281 284 287 294 VECTOR DIRECT. 1.7 3.6 1.8 1.4 4.2 1.6 3.5 4.4 1.6 0.6 2.3 2.4 0.6 WIND MAGNITUDE 56.7 64.3 38.3 25.0 56.0 21.6 51.5 77.2 41.0 18.8 59.0 75.0 12.0 STEADINESES(%) 2005 275 303 278 280 306 27 92 84 87 257 291 265 309 VECTOR DIRECT. 3.3 1.7 4.5 2.7 1.7 1.4 4.8 3.7 1.0 0.8 1.4 1.1 0.7 WIND MAGNITUDE 76.7 37.8 65.2 39.7 27.4 21.2 69.6 66.1 22.2 18.6 41.2 33.3 13.2 STEADINESES(%) 1986-2005 283 286 285 288 295 25 88 88 66 299 288 282 314 VECTOR DIRECT. 1.8 2.6 2.4 2.7 2.4 0.8 3.7 3.4 0.7 0.6 1.0 1.1 0.7 WIND MAGNITUDE 72.0 66.7 55.8 52.9 45.3 14.8 68.5 75.6 21.2 22.2 45.5 57.9 17.9 STEADINESES(%) =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 36 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF WIND SPEED IN KNOTS YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 2.5 3.5 4.2 4.3 4.4 4.1 1.8 2.3 1.7 1.8 ****** 1987 2.1 1.7 3.2 4.1 4.4 5.6 4.7 3.7 3.1 1.9 1.2 1.8 3.1 1988 2.9 2.8 4.5 4.2 5.5 5.6 5.1 4.7 2.7 2.0 2.0 2.0 3.7 1989 2.9 4.9 5.0 5.5 4.6 4.9 6.2 5.9 4.1 3.8 2.0 1.8 4.3 1990 2.5 4.1 4.5 5.7 6.5 5.1 6.1 5.7 3.1 3.1 1.5 2.4 4.2 1991 1.5 2.6 3.6 5.2 7.3 6.1 7.5 4.5 4.4 2.7 2.4 2.3 4.2 1992 3.3 6.7 5.9 7.3 5.1 6.1 5.8 5.5 3.6 2.9 2.6 2.1 4.8 1993 2.4 2.8 4.0 5.7 6.4 5.4 5.7 4.9 4.0 2.5 2.2 1.3 3.9 1994 2.9 3.4 4.4 4.7 4.8 5.5 5.0 5.1 3.4 3.0 2.4 2.7 4.0 1995 2.1 3.2 4.4 5.1 4.6 5.2 4.2 4.4 3.9 2.4 3.2 1.1 3.6 1996 1.7 3.3 3.7 4.9 4.0 5.9 5.0 4.8 2.6 2.6 1.7 2.4 3.6 1997 2.5 4.2 5.3 4.8 5.0 5.7 4.4 4.0 3.7 2.9 0.9 0.9 3.7 1998 3.0 4.4 4.9 4.3 4.4 4.6 5.6 3.2 2.3 2.1 1.3 0.6 3.4 1999 1.7 2.8 2.9 4.5 5.2 5.3 4.6 3.7 2.7 2.5 2.2 1.6 3.3 2000 2.7 4.2 5.2 5.9 5.9 4.3 4.2 3.4 2.5 1.5 1.1 1.4 3.5 2001 1.5 3.3 3.1 4.3 4.4 3.8 4.3 3.2 3.2 2.4 1.9 0.8 3.0 2002 2.1 4.2 3.5 4.4 4.6 5.9 5.6 3.8 2.4 2.3 2.0 2.6 3.6 2003 3.2 4.7 4.8 4.7 5.7 4.8 5.6 4.6 3.3 3.8 3.4 2.4 4.2 2004 3.0 5.6 4.7 5.6 7.5 7.4 6.8 5.7 3.9 3.2 3.9 3.2 5.0 2005 4.3 4.5 6.9 6.8 6.2 6.6 6.9 5.6 4.5 4.3 3.4 3.3 5.3 MEAN 2.5 3.9 4.3 5.1 5.3 5.4 5.4 4.5 3.3 2.7 2.2 1.9 3.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 37 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M FASTEST WIND DIRECTION AND SPEED IN KNOTS YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 290 280 270 110 90 100 90 240 270 270 *** DIRECTION ** ** 17 17 27 19 17 21 14 37 16 19 ** SPEED ** ** 8 15 1 15 29 17 22 23 11 3 DAY 1987 280 270 240 220 280 250 80 250 270 290 250 280 280 DIRECTION 29 23 25 29 27 21 19 17 19 17 19 17 29 SPEED 30 27 14 26 12 3 15 5 18 9 7 31 DAY 1988 290 280 290 280 240 240 110 300 290 290 270 240 110 DIRECTION 23 21 29 23 29 19 31 21 16 23 23 19 31 SPEED 19 28 31 1 1 1 6 5 13 15 14 12 DAY 1989 280 300 270 310 290 290 110 90 330 300 270 280 290 DIRECTION 21 29 29 27 35 23 25 19 21 23 19 31 35 SPEED 26 28 30 29 18 1 4 6 19 2 25 5 DAY 1990 260 290 280 300 310 90 110 120 100 270 270 320 310 DIRECTION 25 41 39 27 43 19 23 23 16 29 19 23 43 SPEED 23 16 14 29 12 12 17 6 9 27 12 25 DAY 1991 230 260 280 330 300 70 90 100 100 100 210 300 260 DIRECTION 23 29 19 25 29 19 23 21 21 19 19 19 29 SPEED 5 4 7 13 17 15 1 21 11 1 14 16 DAY 1992 300 300 270 280 270 270 110 100 320 310 300 300 300 DIRECTION 19 29 29 29 29 27 23 23 19 19 29 25 29 SPEED 23 11 6 21 19 1 18 18 18 24 26 28 DAY 1993 270 330 270 300 280 280 90 30 300 280 270 320 270 DIRECTION 19 19 39 23 29 23 19 29 19 17 29 16 39 SPEED 18 5 22 13 13 5 2 9 15 1 14 10 DAY 1994 280 270 250 260 290 330 90 90 90 300 270 270 260 DIRECTION 23 23 23 29 23 23 19 21 17 25 16 23 29 SPEED 17 1 7 2 3 4 12 10 4 31 8 4 DAY 1995 300 300 270 320 330 300 100 70 210 30 300 280 300 DIRECTION 29 27 29 23 29 21 19 17 29 16 33 12 33 SPEED 1 8 25 5 6 22 5 15 25 11 25 9 DAY 1996 330 300 310 300 310 240 90 90 270 320 300 300 310 DIRECTION 17 19 27 23 23 27 23 19 16 23 16 19 27 SPEED 8 11 14 10 1 5 4 30 19 14 11 15 DAY 1997 270 290 270 290 290 270 90 90 270 320 330 330 270 DIRECTION 23 29 33 29 29 33 23 17 23 23 12 14 33 SPEED 31 6 7 28 21 16 3 1 26 7 1 11 DAY 1998 280 300 290 300 280 90 90 330 90 330 60 300 300 DIRECTION 23 23 23 33 33 23 23 19 16 16 14 12 33 SPEED 13 5 15 24 16 13 13 2 14 8 11 5 DAY 1999 330 300 300 270 250 100 90 90 120 270 300 270 270 DIRECTION 19 25 23 29 29 23 21 19 19 16 23 19 29 SPEED 1 21 17 14 20 11 19 20 6 11 20 16 DAY 2000 280 310 310 250 270 320 90 90 90 290 90 270 250 DIRECTION 27 19 29 49 33 29 23 17 17 17 14 23 49 SPEED 21 7 2 21 9 12 6 9 5 28 17 16 DAY 2001 290 240 310 280 290 330 80 310 280 280 290 280 240 DIRECTION 19 31 19 29 29 17 17 19 19 29 23 14 31 SPEED 5 21 10 15 5 10 5 27 23 2 19 5 DAY 2002 310 250 310 240 270 300 90 90 90 220 290 280 240 DIRECTION 25 23 29 39 27 27 29 19 16 17 31 23 39 SPEED 31 27 10 25 12 22 4 2 6 31 12 22 DAY 2003 260 280 280 270 300 270 100 90 90 240 300 300 270 DIRECTION 27 19 29 39 29 27 19 19 17 27 23 19 39 SPEED 7 5 8 11 23 4 5 3 15 18 11 11 DAY 2004 110 250 270 260 290 60 290 90 120 290 280 310 290 DIRECTION 19 35 33 31 35 27 29 23 19 37 29 23 37 SPEED 13 23 3 24 3 22 12 17 16 22 28 27 DAY 2005 280 300 240 300 260 300 120 70 120 230 280 250 300 DIRECTION 25 23 27 31 29 21 23 23 19 29 27 25 31 SPEED 25 22 10 4 3 8 1 11 10 21 3 26 DAY 1986-2005 280 290 280 250 310 270 110 30 210 240 300 280 250 DIRECTION 29 41 39 49 43 33 31 29 29 37 33 31 49 SPEED 87-30 90-16 90-14 0-21 90-12 97-16 88- 6 93- 9 95-25 86-23 95-25 89- 5 0 YEAR-DAY =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 38 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M NO. OF CLEAR DAYS (0-2)/8 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 6 6 16 28 28 25 30 20 15 15 *** 1987 19 10 7 12 11 27 29 26 28 10 17 14 210 1988 6 10 17 7 26 28 28 30 28 24 17 16 237 1989 15 15 11 10 20 29 30 27 28 24 19 15 243 1990 6 11 17 14 24 27 21 28 30 23 22 14 237 1991 9 9 7 12 20 29 31 31 30 18 19 15 230 1992 13 11 14 10 11 23 30 28 29 30 16 10 225 1993 19 9 14 8 12 29 30 28 29 22 14 11 225 1994 16 12 13 15 18 29 31 31 25 18 13 17 238 1995 24 16 18 7 14 24 31 28 28 27 24 15 256 1996 11 11 10 12 19 27 27 29 29 26 19 15 235 1997 21 23 10 14 17 18 24 31 30 20 11 16 235 1998 14 12 13 13 17 29 27 23 26 27 20 15 236 1999 17 19 13 15 26 27 29 27 29 23 11 16 252 2000 18 21 24 16 27 30 28 26 26 20 13 11 260 2001 16 18 15 17 19 28 29 29 26 24 17 12 250 2002 15 17 15 6 21 27 28 30 29 24 16 9 237 2003 15 10 13 5 15 25 29 31 30 21 17 11 222 2004 13 12 7 9 12 22 24 29 30 23 15 11 207 2005 17 13 13 12 16 29 25 29 29 28 17 18 246 MEAN 14.9 13.6 12.8 11.0 18.0 26.7 27.9 28.3 28.4 22.6 16.6 13.8 234.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 39 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M NO. OF PARTLY CLOUDY DAYS (3-6)/8 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 10 15 9 1 3 6 0 10 7 9 *** 1987 10 10 15 16 14 3 2 5 2 10 8 14 109 1988 17 11 9 15 5 2 3 1 2 6 8 9 88 1989 10 6 8 16 9 1 1 4 2 6 9 11 83 1990 16 6 8 11 5 3 10 3 0 6 7 16 91 1991 16 9 15 16 9 1 0 0 0 12 11 6 95 1992 12 13 12 18 15 6 1 3 1 1 11 12 105 1993 3 12 11 16 14 1 1 3 1 9 10 15 96 1994 9 13 15 14 12 1 0 0 4 11 10 11 100 1995 6 10 12 17 12 6 0 3 2 4 6 12 90 1996 12 10 9 12 11 2 4 2 1 5 9 14 91 1997 8 5 15 14 13 11 7 0 0 8 9 6 96 1998 9 9 7 14 10 1 4 8 4 2 10 13 91 1999 7 6 14 15 5 3 2 4 1 8 16 11 92 2000 10 8 4 12 4 0 3 5 4 8 11 11 80 2001 10 6 13 11 12 1 2 2 4 6 11 12 90 2002 12 10 14 19 8 3 3 1 1 6 8 15 100 2003 9 13 14 15 13 5 2 0 0 8 11 11 101 2004 12 17 18 14 15 8 7 2 0 8 11 15 127 2005 9 9 11 14 13 1 6 2 1 3 11 8 88 MEAN 10.4 9.6 11.7 14.7 10.4 3.0 3.0 2.7 1.5 6.8 9.7 11.5 95.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 40 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M NO. OF CLOUDY DAYS (7-8)/8 YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 *** *** 15 9 6 1 0 0 0 1 8 7 *** 1987 2 7 9 2 6 0 0 0 0 11 5 3 45 1988 8 8 5 8 0 0 0 0 0 1 5 6 41 1989 6 7 12 4 2 0 0 0 0 1 2 5 39 1990 9 11 6 5 2 0 0 0 0 2 1 1 37 1991 6 10 9 2 2 0 0 0 0 1 0 10 40 1992 6 5 5 2 5 1 0 0 0 0 3 9 36 1993 9 7 6 6 5 0 0 0 0 0 6 5 44 1994 6 3 3 1 1 0 0 0 1 2 7 3 27 1995 1 2 1 6 5 0 0 0 0 0 0 4 19 1996 8 8 12 6 1 1 0 0 0 0 2 2 40 1997 2 0 6 2 1 1 0 0 0 3 10 9 34 1998 8 7 11 3 4 0 0 0 0 2 0 3 38 1999 7 3 4 0 0 0 0 0 0 0 3 4 21 2000 3 0 3 2 0 0 0 0 0 3 6 9 26 2001 5 4 3 2 0 1 0 0 0 1 2 7 25 2002 4 1 2 5 2 0 0 0 0 1 6 7 28 2003 7 5 4 10 3 0 0 0 0 2 2 9 42 2004 6 0 6 7 4 0 0 0 0 0 4 5 32 2005 5 6 7 4 2 0 0 0 0 0 2 5 31 MEAN 5.7 4.9 6.4 4.3 2.5 0.3 0.0 0.0 0.1 1.5 3.7 5.6 35.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 41 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 *** *** 3 0 0 0 0 0 0 0 0 3 *** 1987 1 0 0 0 0 0 0 0 0 1 0 0 2 1988 0 2 0 0 0 0 0 0 0 1 1 0 4 1989 4 4 0 0 0 0 0 0 0 0 0 0 8 1990 1 2 1 0 1 0 0 0 0 0 0 1 6 1991 5 1 0 0 3 0 1 0 0 0 0 2 12 1992 0 0 2 0 1 0 0 0 0 0 1 1 5 1993 5 0 1 0 0 0 0 0 0 0 1 1 8 1994 0 1 0 0 0 0 0 0 0 0 0 0 1 1995 0 0 0 0 0 0 0 0 0 0 2 0 2 1996 2 1 0 0 0 0 0 0 0 0 0 0 3 1997 0 0 1 0 0 1 0 0 0 0 0 2 4 1998 3 1 1 0 1 0 0 0 0 0 0 0 6 1999 2 1 0 0 0 0 0 0 0 0 4 3 10 2000 0 0 0 1 2 1 0 0 0 1 0 12 17 2001 5 0 0 0 0 0 0 0 1 0 0 3 9 2002 4 2 1 3 0 0 0 0 0 0 2 6 18 2003 2 2 1 0 0 0 0 0 0 1 0 1 7 2004 7 1 0 1 0 0 0 0 0 0 1 4 14 2005 5 2 0 0 0 0 0 0 0 0 0 1 8 MEAN 2.4 1.1 0.6 0.3 0.4 0.1 0.1 0.0 0.1 0.2 0.6 2.0 7.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 42 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MONTHLY TOTAL OF SUNSHINE HOURS YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ***** ***** 147.2 189.6 285.2 357.7 363.0 345.7 325.3 265.6 172.2 184.7 ****** 1987 236.0 177.5 199.9 268.2 259.7 347.8 357.8 345.3 298.2 170.1 202.3 188.8 3051.6 1988 171.0 185.4 243.6 220.4 348.7 359.8 366.1 347.8 313.4 273.6 198.5 200.1 3228.4 1989 193.2 203.3 211.9 272.3 322.0 373.8 373.0 348.1 319.7 281.0 223.4 192.2 3313.9 1990 152.1 159.4 219.6 ***** ***** ***** ***** ***** ***** ***** 244.7 194.0 ****** 1991 150.4 156.1 171.6 258.1 282.3 352.1 359.4 336.1 314.6 246.9 210.6 140.7 2978.9 1992 157.4 184.2 220.6 215.5 234.8 323.1 362.3 327.6 320.1 297.7 192.2 137.3 2972.8 1993 171.9 161.0 223.0 200.4 268.4 368.7 373.0 343.8 310.8 257.8 171.3 154.3 3004.4 1994 173.7 198.3 238.1 238.4 293.5 359.4 369.9 355.6 299.9 247.9 180.9 177.0 3132.6 1995 250.1 224.0 269.9 139.9 ***** ***** 350.4 362.1 308.8 299.3 257.6 179.6 ****** 1996 157.7 165.8 166.9 222.0 303.9 355.2 360.0 352.2 290.5 294.6 201.5 206.9 3077.2 1997 217.7 267.2 212.2 259.2 308.8 325.6 352.4 361.0 320.3 259.5 173.8 162.4 3220.1 1998 176.4 171.2 217.1 266.2 312.3 372.9 360.3 345.6 308.5 286.6 223.5 178.3 3218.9 1999 187.8 234.0 215.5 268.8 349.4 361.4 367.6 352.6 316.1 274.1 194.6 184.5 3306.4 2000 197.3 250.3 279.3 255.3 341.4 367.7 364.3 339.2 290.7 247.3 178.5 128.9 3240.2 2001 184.2 219.4 260.3 282.1 317.8 363.0 352.7 349.4 303.7 274.8 210.0 147.7 3265.1 2002 190.4 232.6 256.6 198.7 322.1 368.9 364.8 356.4 319.8 273.2 192.5 131.5 3207.5 2003 187.3 172.8 212.5 183.1 299.0 338.0 345.5 361.3 321.6 251.6 215.2 151.7 3039.6 2004 181.3 220.9 204.2 229.5 283.8 340.8 334.6 342.9 318.7 271.2 194.9 164.9 3087.7 2005 201.0 189.1 245.0 243.3 298.7 364.7 335.1 351.3 314.5 279.6 210.6 207.4 3240.3 MEAN 186.2 198.6 220.7 232.2 301.8 355.6 358.5 348.6 311.3 265.9 202.4 170.6 3152.4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 43 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFE PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 916.2 913.8 912.6 906.9 908.9 911.0 915.2 917.7 918.2 919.3 ****** 1987 919.4 917.5 911.7 913.9 913.2 909.3 908.6 908.5 913.0 919.6 920.0 918.8 914.5 1988 917.7 916.3 911.7 913.6 911.3 907.5 905.3 907.0 912.1 917.1 917.9 916.8 912.9 1989 918.1 920.0 913.1 914.8 912.8 907.6 907.7 908.2 911.3 916.9 918.4 916.9 913.8 1990 918.4 915.0 917.2 911.7 910.8 907.2 906.6 907.6 910.5 917.0 918.7 918.6 913.3 1991 917.9 918.0 914.2 913.3 909.6 908.2 905.4 907.4 913.0 917.5 919.2 916.9 913.4 1992 917.9 914.0 915.4 911.9 913.4 908.1 906.2 910.1 913.8 916.5 918.4 917.7 913.6 1993 919.0 916.8 915.2 912.8 912.5 908.7 908.1 909.8 911.7 920.0 918.5 920.4 914.5 1994 917.7 914.9 913.9 914.3 912.3 906.2 904.1 905.9 915.8 919.0 916.3 919.7 913.3 1995 918.9 916.1 914.4 912.5 914.1 908.3 903.5 907.0 911.4 916.9 917.3 920.6 913.4 1996 920.0 915.3 913.5 914.1 912.9 908.5 909.3 909.1 909.9 916.8 921.5 920.2 914.3 1997 916.3 916.8 912.1 912.0 913.4 908.2 904.0 907.5 912.9 916.1 919.3 918.0 913.1 1998 916.5 916.6 914.1 913.1 913.0 910.5 906.5 909.8 911.7 917.2 918.8 921.0 914.0 1999 918.8 915.1 913.7 913.4 911.4 907.4 906.5 909.0 910.9 915.8 918.5 922.4 913.6 2000 916.9 916.8 914.2 912.8 909.5 907.5 908.2 908.8 910.8 917.3 920.6 919.1 913.5 2001 920.0 916.6 914.2 912.3 909.9 906.9 906.6 909.3 912.5 916.1 917.9 919.9 913.5 2002 918.8 917.3 914.6 911.6 910.7 908.2 908.1 906.9 912.7 916.2 919.8 918.6 913.6 2003 918.1 914.2 914.4 914.0 914.1 907.8 904.1 909.5 912.5 915.8 919.9 921.4 913.8 2004 915.9 916.3 916.7 913.4 911.1 908.6 908.4 907.7 914.2 918.8 917.8 919.3 914.0 2005 917.9 916.5 913.5 915.6 912.7 908.2 906.7 908.4 911.1 917.4 919.7 920.0 914.0 MEAN 918.1 916.3 914.2 913.2 912.1 908.0 906.6 908.4 912.4 917.3 918.8 919.3 913.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 44 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFE PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 923.9 922.5 920.4 916.4 914.3 915.9 921.7 926.2 926.4 931.4 ****** DAY-HOUR **-** **-** 28- 6 5- 6 18- 6 2- 6 15- 3 24-21 22- 6 15- 6 16- 6 7- 6 1987 929.4 926.1 922.3 923.4 920.8 916.3 914.9 917.4 920.6 927.4 933.0 932.6 933.0 DAY-HOUR 12- 6 12- 6 23- 6 22- 6 1- 3 28- 6 11- 6 8- 6 24- 6 16- 6 30- 6 1- 6 1988 929.4 929.1 923.0 925.8 919.7 914.4 912.9 914.3 919.6 925.4 925.3 926.4 929.4 DAY-HOUR 3- 6 7- 6 17- 6 9- 6 17- 6 8- 6 31- 6 21- 6 14- 6 16- 6 6- 6 30- 6 1989 926.7 929.4 920.2 921.8 920.7 913.0 914.2 915.7 924.0 925.0 925.0 923.2 929.4 DAY-HOUR 27- 6 4- 6 7- 6 2- 6 1- 6 2- 6 21- 6 20- 6 23- 6 25- 6 22- 6 18- 6 1990 928.6 926.1 928.0 918.8 919.0 916.4 913.1 914.2 916.6 928.1 928.5 930.6 930.6 DAY-HOUR 26- 6 8- 6 10- 6 24- 6 15- 6 1- 6 17- 6 29- 6 24- 6 19- 6 23- 6 28- 6 1991 927.0 930.5 923.0 920.8 918.4 916.1 911.4 913.5 921.7 923.3 926.0 927.1 930.5 DAY-HOUR 12- 6 15- 6 12- 6 19- 6 25- 3 23- 6 12- 6 23- 6 27- 6 13- 6 24- 6 17- 6 1992 929.4 923.7 928.5 917.7 921.0 914.9 912.2 920.0 920.0 923.1 928.2 924.1 929.4 DAY-HOUR 10- 6 16- 6 12- 6 20- 6 2- 9 11- 3 14- 6 31- 6 1- 6 30- 6 4- 6 29- 6 1993 928.6 925.1 923.2 921.1 921.0 919.6 915.5 915.5 920.5 927.0 927.0 927.3 928.6 DAY-HOUR 6- 6 9- 6 23- 6 1- 6 9- 6 23- 3 27- 6 25- 6 23- 6 17- 6 21- 6 26- 6 1994 928.0 925.0 921.5 929.0 919.0 914.1 911.3 913.0 925.5 925.7 924.4 928.1 929.0 DAY-HOUR 10- 6 19- 6 18- 6 5- 6 18- 6 9- 6 2- 6 22- 6 23- 6 10- 6 2- 6 7-18 1995 928.6 923.0 925.2 919.4 920.0 916.7 909.6 914.0 921.0 927.2 926.1 926.4 928.6 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 6 4- 6 25- 6 22- 6 25- 6 16- 6 10- 6 1996 928.1 923.0 918.8 922.5 919.0 914.8 916.2 918.6 920.0 926.4 933.0 928.2 933.0 DAY-HOUR 26- 6 13- 6 29- 6 4- 6 7- 6 12- 3 4- 6 30- 6 25- 6 2- 6 18- 6 2- 6 1997 925.9 925.5 927.2 920.0 920.8 914.2 910.2 914.2 920.0 923.0 930.2 927.5 930.2 DAY-HOUR 19- 6 7- 6 11- 6 13- 6 12- 6 8- 6 9- 6 25- 6 15- 6 9- 6 8- 6 28- 6 1998 925.8 931.1 921.4 923.8 921.8 917.5 916.4 915.7 918.6 925.8 926.9 928.5 931.1 DAY-HOUR 4- 6 23- 6 27- 6 12- 6 9- 6 17- 3 21- 6 25- 6 12- 6 10- 6 21- 6 29- 6 1999 931.8 924.0 922.7 920.0 919.3 914.8 913.4 917.7 919.7 922.7 928.0 930.2 931.8 DAY-HOUR 2- 6 12- 6 19- 6 11- 6 28- 6 8- 6 19- 6 20- 6 29- 6 27- 6 30- 6 6- 6 2000 925.4 925.6 922.6 920.0 915.5 915.5 917.0 916.0 919.0 924.6 931.2 927.0 931.2 DAY-HOUR 31- 6 10-21 27- 6 2- 6 5- 6 14- 3 30- 6 23- 6 29-18 16- 6 17- 6 4- 6 2001 925.4 926.9 924.2 922.0 915.2 916.7 914.5 916.4 922.1 925.9 926.5 925.5 926.9 DAY-HOUR 29- 6 9- 6 1- 6 2- 6 1- 6 2- 6 28- 6 14- 6 22- 6 10- 6 20- 6 22- 6 2002 927.3 927.4 929.8 921.0 918.0 917.4 915.1 914.5 919.5 922.2 929.6 929.2 929.8 DAY-HOUR 26- 6 6- 6 11- 6 1- 6 17- 6 25- 6 29- 6 31- 6 30- 6 10- 6 18- 6 3- 6 2003 924.3 922.3 927.3 920.5 923.7 915.0 912.6 915.2 922.5 922.4 931.0 932.4 932.4 DAY-HOUR 12- 6 12- 6 2- 6 3- 6 2- 6 7- 6 4- 6 30- 6 27- 6 15- 6 25- 6 12- 6 2004 923.7 923.4 926.5 920.8 917.6 918.3 915.9 914.5 922.1 926.1 925.2 930.7 930.7 DAY-HOUR 1- 0 10- 6 9- 6 11- 6 3-21 6- 6 18- 6 30- 6 30- 6 27- 6 29- 6 3- 6 2005 926.1 925.7 921.1 927.8 918.4 915.0 913.9 914.5 916.2 925.9 925.0 929.7 929.7 DAY-HOUR 8- 6 15- 6 27- 6 6- 6 19- 0 9- 3 28- 6 27- 6 9- 6 24- 6 15- 6 29- 6 1986-2005 931.8 931.1 929.8 929.0 923.7 919.6 917.0 920.0 925.5 928.1 933.0 932.6 933.0 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 0-30 92-31 94-23 90-19 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 45 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFE PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 908.1 908.2 906.3 900.7 901.1 905.5 910.2 910.5 909.1 907.8 ****** DAY-HOUR **-** **-** 8- 3 30-15 11-15 17-12 20-15 6-15 6-15 1-15 7-12 30-15 1987 909.6 908.2 900.8 902.7 905.2 903.9 900.5 901.8 907.0 907.8 906.6 908.0 900.5 DAY-HOUR 6-12 10-15 13-21 4-15 22-15 9-15 3-15 25-15 6-12 4-15 7-12 24- 0 1988 907.9 903.8 902.6 904.2 905.2 899.5 899.4 900.7 904.4 908.6 910.1 900.8 899.4 DAY-HOUR 29- 3 2-12 4-21 23-12 24-15 30-15 18-15 29-15 11-15 30-12 28-12 27- 3 1989 909.6 909.5 901.0 908.5 902.5 900.2 900.2 899.4 903.5 908.0 912.6 908.8 899.4 DAY-HOUR 17-12 23- 0 29-15 29- 9 31-15 10-15 5-15 1-18 11-15 1-15 19-15 5- 0 1990 910.0 902.8 907.2 900.7 902.9 899.4 900.0 900.7 904.6 908.1 909.4 909.6 899.4 DAY-HOUR 23- 3 15-15 24-15 15-15 12- 9 26-15 4-15 8-15 1-15 1-15 1-12 25- 3 1991 906.4 909.0 904.0 904.8 901.0 897.6 898.8 900.8 904.0 911.8 911.0 908.6 897.6 DAY-HOUR 24-15 20-12 6-15 4-12 22-15 11-15 13-18 11-15 8-12 4-12 4-12 31-21 1992 907.1 902.8 901.4 903.0 907.3 900.1 900.0 900.9 906.5 909.9 906.6 912.1 900.0 DAY-HOUR 2-21 24-15 30-12 18- 0 20-15 27-15 18-15 1-15 17-15 5-15 25-21 27-12 1993 909.6 907.0 907.0 904.8 907.9 902.1 901.6 902.2 904.6 910.7 905.5 912.7 901.6 DAY-HOUR 8-12 3-12 21-15 20-15 2-15 3-15 12-15 12-15 3-15 2-15 11-12 5-12 1994 906.5 906.5 901.7 906.3 906.0 900.2 897.9 898.6 905.8 911.3 904.9 903.0 897.9 DAY-HOUR 16-12 1- 3 7-12 2- 9 1-12 25-15 30-15 2-15 1-15 2-12 25-21 3-18 1995 912.5 904.0 904.5 905.5 907.5 900.0 896.3 900.8 902.6 907.6 908.0 915.5 896.3 DAY-HOUR 11-12 5-12 25-15 16-15 5-15 22-12 16-15 22-15 20-12 12-12 11-12 25-12 1996 910.3 906.4 907.1 905.0 904.7 902.0 900.8 902.0 903.2 906.6 914.2 912.9 900.8 DAY-HOUR 6-12 10-12 25-21 13-12 29-15 19-15 6-15 8-12 21-15 27-12 6-15 25-12 1997 905.4 908.2 900.6 902.5 903.8 900.5 897.4 900.0 904.0 910.4 913.2 908.0 897.4 DAY-HOUR 16-12 22-15 29-12 10-12 4-12 30-15 16-15 5-15 2-15 6-12 20-12 10- 3 1998 904.8 904.6 902.0 904.6 903.8 903.5 897.9 903.5 904.4 907.0 911.5 913.0 897.9 DAY-HOUR 13- 0 8- 0 18-12 21-12 29-12 29-15 4-15 21-15 3-15 1-12 1-15 21-12 1999 910.5 903.3 906.1 902.2 900.5 898.0 900.2 902.9 904.0 911.0 910.1 913.6 898.0 DAY-HOUR 9-12 20-15 26-12 8-12 20-12 25-12 22-15 13-15 15-15 31-12 1- 9 15-12 2000 905.2 905.3 904.6 907.5 901.5 899.0 899.0 900.5 902.2 910.7 913.9 910.8 899.0 DAY-HOUR 21-12 7- 3 24-15 10-12 26-15 24-15 11-15 30-15 1-12 1-12 21-12 15- 9 2001 914.0 900.2 902.7 903.7 901.4 899.0 898.4 902.3 903.9 910.5 904.7 912.4 898.4 DAY-HOUR 19-12 21-12 25- 0 26-12 29-15 17-15 10-15 27-12 5-15 1-12 18-15 5-12 2002 909.0 906.2 905.2 901.2 904.9 898.8 899.5 900.0 906.6 909.7 911.0 905.5 898.8 DAY-HOUR 8- 0 25-12 22-12 3-12 29-12 20-15 24-15 7-15 10-15 21-12 12- 9 21-12 2003 904.6 903.7 901.6 906.0 907.2 899.3 898.9 904.1 905.0 908.3 911.2 911.2 898.9 DAY-HOUR 28-15 20-12 26-12 27-15 23-12 30-15 24-15 1- 0 7-15 27-12 14-12 6-12 2004 908.0 904.5 906.0 903.5 898.6 902.4 903.7 901.3 906.3 911.5 902.9 910.7 898.6 DAY-HOUR 23-15 15-12 31-12 17- 0 13-12 17-15 24-15 4-15 11-15 3-12 23-12 16-12 2005 906.0 907.6 903.3 906.0 903.1 898.3 897.7 900.0 904.4 907.9 912.8 908.7 897.7 DAY-HOUR 23- 0 2- 0 24-12 3-15 5-15 20-15 5-15 7-15 5-15 20-12 5-21 24- 0 1986-2005 904.6 900.2 900.6 900.7 898.6 897.6 896.3 898.6 902.2 906.6 902.9 900.8 896.3 YEAR-DAY 3-28 1-21 97-29 90-15 4-13 91-11 95-16 94- 2 0- 1 96-27 4-23 88-27 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 46 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QNH PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1017.3 1014.7 1013.4 1007.2 1009.4 1011.6 1016.3 1019.0 1019.5 1020.7 ****** 1987 1020.8 1018.7 1012.4 1014.8 1014.0 1009.8 1009.0 1009.0 1013.8 1021.0 1021.5 1020.2 1015.4 1988 1019.0 1017.4 1012.4 1014.5 1012.0 1007.9 1005.4 1007.3 1012.8 1018.3 1019.2 1018.0 1013.7 1989 1019.4 1021.5 1013.9 1015.8 1013.6 1007.9 1008.0 1008.6 1012.0 1018.0 1019.7 1018.1 1014.7 1990 1019.7 1016.0 1018.4 1012.4 1011.4 1007.5 1006.9 1008.0 1011.1 1018.1 1020.0 1019.9 1014.1 1991 1019.2 1019.3 1015.2 1014.2 1010.2 1008.6 1005.6 1007.8 1013.9 1018.7 1020.6 1018.0 1014.3 1992 1019.1 1014.9 1016.5 1012.6 1014.3 1008.5 1006.5 1010.7 1014.7 1017.6 1019.7 1018.9 1014.5 1993 1020.4 1018.0 1016.3 1013.6 1013.3 1009.1 1008.5 1010.3 1012.4 1021.5 1019.9 1021.9 1015.4 1994 1019.0 1015.9 1014.9 1015.3 1013.0 1006.4 1004.2 1006.1 1016.9 1020.3 1017.4 1021.2 1014.2 1995 1020.2 1017.2 1015.4 1013.3 1015.0 1008.8 1003.5 1007.2 1012.1 1018.1 1018.5 1022.1 1014.3 1996 1021.5 1016.4 1014.3 1015.0 1013.7 1008.9 1009.8 1009.6 1010.5 1017.9 1023.1 1021.7 1015.2 1997 1017.5 1018.0 1012.9 1012.7 1014.2 1008.6 1004.1 1007.9 1013.7 1017.2 1020.7 1019.3 1013.9 1998 1017.6 1017.7 1015.0 1013.9 1013.8 1011.1 1006.8 1010.3 1012.5 1018.4 1020.1 1022.5 1015.0 1999 1020.1 1016.1 1014.6 1014.3 1012.1 1007.8 1006.7 1009.4 1011.6 1016.9 1019.8 1024.1 1014.5 2000 1018.1 1018.0 1015.1 1013.6 1010.0 1007.8 1008.6 1009.3 1011.4 1018.5 1022.1 1020.4 1014.4 2001 1021.4 1017.7 1015.1 1013.0 1010.4 1007.2 1006.9 1009.8 1013.3 1017.3 1019.2 1021.3 1014.4 2002 1020.1 1018.5 1015.6 1012.3 1011.3 1008.6 1008.5 1007.2 1013.5 1017.3 1021.3 1019.9 1014.5 2003 1019.4 1015.1 1015.4 1014.9 1015.0 1008.2 1004.1 1010.0 1013.3 1016.8 1021.4 1023.0 1014.7 2004 1017.0 1017.5 1017.9 1014.3 1011.8 1009.1 1008.8 1008.0 1015.2 1020.2 1019.1 1020.7 1015.0 2005 1019.2 1017.7 1014.4 1016.7 1013.5 1008.7 1007.0 1008.9 1011.8 1018.7 1021.2 1021.5 1014.9 MEAN 1019.4 1017.5 1015.1 1014.1 1012.8 1008.4 1006.9 1008.9 1013.1 1018.5 1020.2 1020.7 1014.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 47 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QNH PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1025.7 1024.2 1021.9 1017.5 1015.3 1017.0 1023.3 1028.2 1028.4 1033.9 ****** DAY-HOUR **-** **-** 28- 6 5- 6 18- 6 2- 6 15- 3 24-21 22- 6 15- 6 16- 6 7- 6 1987 1031.7 1028.1 1024.0 1025.2 1022.3 1017.4 1015.9 1018.6 1022.1 1029.5 1035.6 1035.2 1035.6 DAY-HOUR 12- 6 12- 6 23- 6 22- 6 1- 3 28- 6 11- 6 8- 6 24- 6 16- 6 30- 6 1- 6 1988 1031.7 1031.4 1024.7 1027.8 1021.1 1015.4 1013.7 1015.3 1021.0 1027.3 1027.2 1028.4 1031.7 DAY-HOUR 3- 6 7- 6 17- 6 9- 6 17- 6 8- 6 31- 6 21- 6 14- 6 16- 6 6- 6 30- 6 1989 1028.8 1031.7 1021.7 1023.4 1022.2 1013.8 1015.2 1016.8 1025.8 1026.9 1026.9 1024.9 1031.7 DAY-HOUR 27- 6 4- 6 7- 6 2- 6 1- 6 2- 6 21- 6 20- 6 23- 6 25- 6 22- 6 18- 6 1990 1030.8 1028.1 1030.2 1020.2 1020.4 1017.5 1014.0 1015.2 1017.8 1030.3 1030.7 1033.0 1033.0 DAY-HOUR 26- 6 8- 6 10- 6 24- 6 15- 6 1- 6 17- 6 29- 6 24- 6 19- 6 23- 6 28- 6 1991 1029.1 1032.9 1024.7 1022.3 1019.7 1017.2 1012.1 1014.4 1023.3 1025.1 1028.0 1029.2 1032.9 DAY-HOUR 12- 6 15- 6 12- 6 19- 6 25- 3 23- 6 12- 6 23- 6 27- 6 13- 6 24- 6 17- 6 1992 1031.7 1025.5 1030.7 1019.0 1022.6 1015.9 1013.0 1021.5 1021.5 1024.8 1030.4 1025.9 1031.7 DAY-HOUR 10- 6 16- 6 12- 6 20- 6 2- 9 11- 3 14- 6 31- 6 1- 6 30- 6 4- 6 29- 6 1993 1030.8 1027.0 1024.9 1022.7 1022.6 1021.0 1016.6 1016.6 1022.0 1029.1 1029.1 1029.4 1030.8 DAY-HOUR 6- 6 9- 6 23- 6 1- 6 9- 6 23- 3 27- 6 25- 6 23- 6 17- 6 21- 6 26- 6 1994 1030.2 1026.9 1023.1 1031.3 1020.4 1015.0 1012.0 1013.8 1027.5 1027.7 1026.3 1030.3 1031.3 DAY-HOUR 10- 6 19- 6 18- 6 5- 6 18- 6 9- 6 2- 6 22- 6 23- 6 10- 6 2- 6 7-18 1995 1030.8 1024.7 1027.1 1020.8 1021.5 1017.9 1010.1 1014.9 1022.6 1029.3 1028.1 1028.4 1030.8 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 6 4- 6 25- 6 22- 6 25- 6 16- 6 10- 6 1996 1030.3 1024.7 1020.2 1024.2 1020.4 1015.8 1017.3 1019.9 1021.5 1028.4 1035.6 1030.4 1035.6 DAY-HOUR 26- 6 13- 6 29- 6 4- 6 7- 6 12- 3 4- 6 30- 6 25- 6 2- 6 18- 6 2- 6 1997 1027.9 1027.5 1029.3 1021.5 1022.3 1015.2 1010.8 1015.2 1021.5 1024.7 1032.6 1029.6 1032.6 DAY-HOUR 19- 6 7- 6 11- 6 13- 6 12- 6 8- 6 9- 6 25- 6 15- 6 9- 6 8- 6 28- 6 1998 1027.8 1033.5 1023.0 1025.6 1023.4 1018.7 1017.5 1016.8 1019.9 1027.8 1029.0 1030.7 1033.5 DAY-HOUR 4- 6 23- 6 27- 6 12- 6 9- 6 17- 3 21- 6 25- 6 12- 6 10- 6 21- 6 29- 6 1999 1034.3 1025.8 1024.4 1021.5 1020.7 1015.8 1014.3 1019.0 1021.1 1024.4 1030.2 1032.6 1034.3 DAY-HOUR 2- 6 12- 6 19- 6 11- 6 28- 6 8- 6 19- 6 20- 6 29- 6 27- 6 30- 6 6- 6 2000 1027.3 1027.6 1024.3 1021.5 1016.6 1016.6 1018.2 1017.1 1020.4 1026.5 1033.7 1029.1 1033.7 DAY-HOUR 31- 6 10-21 27- 6 2- 6 5- 6 14- 3 30- 6 23- 6 29-18 16- 6 17- 6 4- 6 2001 1027.3 1029.0 1026.0 1023.6 1016.2 1017.9 1015.5 1017.5 1023.8 1027.9 1028.5 1027.5 1029.0 DAY-HOUR 29- 6 9- 6 1- 6 2- 6 1- 6 2- 6 28- 6 14- 6 22- 6 10- 6 20- 6 22- 6 2002 1029.4 1029.5 1032.1 1022.6 1019.3 1018.6 1016.1 1015.5 1020.9 1023.9 1031.9 1031.5 1032.1 DAY-HOUR 26- 6 6- 6 11- 6 1- 6 17- 6 25- 6 29- 6 31- 6 30- 6 10- 6 18- 6 3- 6 2003 1026.1 1024.0 1029.4 1022.0 1025.5 1016.0 1013.4 1016.2 1024.2 1024.1 1033.4 1035.0 1035.0 DAY-HOUR 12- 6 12- 6 2- 6 3- 6 2- 6 7- 6 4- 6 30- 6 27- 6 15- 6 25- 6 12- 6 2004 1025.5 1025.2 1028.5 1022.3 1018.9 1019.6 1017.0 1015.5 1023.8 1028.1 1027.1 1033.1 1033.1 DAY-HOUR 1- 0 10- 6 9- 6 11- 6 3-21 6- 6 18- 6 30- 6 30- 6 27- 6 29- 6 3- 6 2005 1028.1 1027.7 1022.7 1030.0 1019.7 1016.0 1014.8 1015.5 1017.3 1027.9 1026.9 1032.0 1032.0 DAY-HOUR 8- 6 15- 6 27- 6 6- 6 19- 0 9- 3 28- 6 27- 6 9- 6 24- 6 15- 6 29- 6 1986-2005 1034.3 1033.5 1032.1 1031.3 1025.5 1021.0 1018.2 1021.5 1027.5 1030.3 1035.6 1035.2 1035.6 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 0-30 92-31 94-23 90-19 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 48 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QNH PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1008.5 1008.6 1006.6 1000.5 1000.9 1005.7 1010.8 1011.1 1009.6 1008.2 ****** DAY-HOUR **-** **-** 8- 3 30-15 11-15 17-12 20-15 6-15 6-15 1-15 7-12 30-15 1987 1010.1 1008.6 1000.6 1002.6 1005.4 1003.9 1000.2 1001.6 1007.3 1008.2 1006.9 1008.4 1000.2 DAY-HOUR 6-12 10-15 13-21 4-15 22-15 9-15 3-15 25-15 6-12 4-15 7-12 24- 0 1988 1008.3 1003.8 1002.5 1004.3 1005.4 999.1 999.0 1000.5 1004.5 1009.1 1010.7 1000.6 999.0 DAY-HOUR 29- 3 2-12 4-21 23-12 24-15 30-15 18-15 29-15 11-15 30-12 28-12 27- 3 1989 1010.1 1010.0 1000.8 1008.9 1002.4 999.9 999.9 999.0 1003.5 1008.4 1013.4 1009.3 999.0 DAY-HOUR 17-12 23- 0 29-15 29- 9 31-15 10-15 5-15 1-18 11-15 1-15 19-15 5- 0 1990 1010.6 1002.7 1007.5 1000.5 1002.8 999.0 999.7 1000.5 1004.7 1008.5 1009.9 1010.1 999.0 DAY-HOUR 23- 3 15-15 24-15 15-15 12- 9 26-15 4-15 8-15 1-15 1-15 1-12 25- 3 1991 1006.7 1009.5 1004.0 1004.9 1000.8 997.1 998.4 1000.6 1004.0 1012.5 1011.7 1009.1 997.1 DAY-HOUR 24-15 20-12 6-15 4-12 22-15 11-15 13-18 11-15 8-12 4-12 4-12 31-21 1992 1007.4 1002.7 1001.2 1003.0 1007.6 999.8 999.7 1000.7 1006.8 1010.5 1006.9 1012.9 999.7 DAY-HOUR 2-21 24-15 30-12 18- 0 20-15 27-15 18-15 1-15 17-15 5-15 25-21 27-12 1993 1010.1 1007.3 1007.3 1004.9 1008.3 1002.0 1001.4 1002.1 1004.7 1011.3 1005.7 1013.5 1001.4 DAY-HOUR 8-12 3-12 21-15 20-15 2-15 3-15 12-15 12-15 3-15 2-15 11-12 5-12 1994 1006.8 1006.8 1001.5 1006.6 1006.2 999.9 997.4 998.2 1006.0 1012.0 1005.0 1003.0 997.4 DAY-HOUR 16-12 1- 3 7-12 2- 9 1-12 25-15 30-15 2-15 1-15 2-12 25-21 3-18 1995 1013.3 1004.0 1004.6 1005.7 1007.9 999.7 995.7 1000.6 1002.5 1008.0 1008.4 1016.6 995.7 DAY-HOUR 11-12 5-12 25-15 16-15 5-15 22-12 16-15 22-15 20-12 12-12 11-12 25-12 1996 1010.9 1006.7 1007.4 1005.1 1004.8 1001.9 1000.6 1001.9 1003.2 1006.9 1015.2 1013.7 1000.6 DAY-HOUR 6-12 10-12 25-21 13-12 29-15 19-15 6-15 8-12 21-15 27-12 6-15 25-12 1997 1005.6 1008.6 1000.3 1002.4 1003.8 1000.2 996.9 999.7 1004.0 1011.0 1014.1 1008.4 996.9 DAY-HOUR 16-12 22-15 29-12 10-12 4-12 30-15 16-15 5-15 2-15 6-12 20-12 10- 3 1998 1004.9 1004.7 1001.9 1004.7 1003.8 1003.5 997.4 1003.5 1004.5 1007.3 1012.2 1013.8 997.4 DAY-HOUR 13- 0 8- 0 18-12 21-12 29-12 29-15 4-15 21-15 3-15 1-12 1-15 21-12 1999 1011.1 1003.3 1006.3 1002.1 1000.2 997.5 999.9 1002.8 1004.0 1011.7 1010.7 1014.5 997.5 DAY-HOUR 9-12 20-15 26-12 8-12 20-12 25-12 22-15 13-15 15-15 31-12 1- 9 15-12 2000 1005.4 1005.5 1004.7 1007.9 1001.3 998.6 998.6 1000.2 1002.1 1011.3 1014.8 1011.5 998.6 DAY-HOUR 21-12 7- 3 24-15 10-12 26-15 24-15 11-15 30-15 1-12 1-12 21-12 15- 9 2001 1014.9 999.9 1002.6 1003.7 1001.2 998.6 997.9 1002.2 1003.9 1011.1 1004.8 1013.2 997.9 DAY-HOUR 19-12 21-12 25- 0 26-12 29-15 17-15 10-15 27-12 5-15 1-12 18-15 5-12 2002 1009.5 1006.4 1005.4 1001.0 1005.0 998.4 999.1 999.7 1006.9 1010.2 1011.7 1005.7 998.4 DAY-HOUR 8- 0 25-12 22-12 3-12 29-12 20-15 24-15 7-15 10-15 21-12 12- 9 21-12 2003 1004.7 1003.7 1001.4 1006.2 1007.5 998.9 998.5 1004.2 1005.1 1008.7 1011.9 1011.9 998.5 DAY-HOUR 28-15 20-12 26-12 27-15 23-12 30-15 24-15 1- 0 7-15 27-12 14-12 6-12 2004 1008.4 1004.6 1006.2 1003.5 998.2 1002.3 1003.7 1001.1 1006.6 1012.2 1002.8 1011.3 998.2 DAY-HOUR 23-15 15-12 31-12 17- 0 13-12 17-15 24-15 4-15 11-15 3-12 23-12 16-12 2005 1006.2 1008.0 1003.3 1006.2 1003.1 997.8 997.2 999.7 1004.5 1008.3 1013.6 1009.2 997.2 DAY-HOUR 23- 0 2- 0 24-12 3-15 5-15 20-15 5-15 7-15 5-15 20-12 5-21 24- 0 1986-2005 1004.7 999.9 1000.3 1000.5 998.2 997.1 995.7 998.2 1002.1 1006.9 1002.8 1000.6 995.7 YEAR-DAY 3-28 1-21 97-29 90-15 4-13 91-11 95-16 94- 2 0- 1 96-27 4-23 88-27 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 49 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1018.6 1012.5 1009.6 1001.1 1002.5 1005.6 1011.8 1016.1 1020.4 1024.0 ****** 1987 1023.4 1020.2 1012.7 1012.6 1009.3 1003.3 1002.4 1002.3 1009.0 1020.0 1021.7 1022.5 1013.3 1988 1022.0 1019.6 1012.3 1012.6 1007.3 1001.5 998.3 1000.6 1007.9 1016.0 1019.4 1020.3 1011.5 1989 1023.7 1025.7 1014.1 1013.0 1009.3 1001.4 1000.7 1001.8 1007.1 1015.2 1019.7 1019.9 1012.6 1990 1023.2 1018.5 1018.8 1010.2 1006.7 1000.8 999.8 1001.1 1005.9 1015.7 1020.0 1022.5 1011.9 1991 1022.1 1022.2 1015.6 1011.6 1006.1 1002.4 998.5 1001.4 1009.1 1016.3 1021.0 1021.1 1012.3 1992 1023.3 1017.7 1018.4 1010.9 1011.6 1002.8 999.3 1004.8 1010.7 1015.5 1020.1 1021.6 1013.0 1993 1024.6 1020.5 1017.1 1011.3 1009.5 1003.1 1001.6 1003.9 1007.3 1019.9 1021.2 1024.2 1013.7 1994 1021.3 1018.0 1014.4 1012.7 1008.8 1000.2 996.9 999.1 1012.7 1018.2 1017.4 1024.5 1012.0 1995 1022.6 1018.6 1015.1 1011.1 1011.0 1002.9 996.0 1000.1 1007.3 1016.2 1018.8 1025.5 1012.1 1996 1025.3 1018.2 1015.4 1013.3 1009.4 1002.3 1003.1 1003.1 1005.0 1015.9 1024.1 1023.6 1013.2 1997 1019.8 1020.5 1013.6 1010.5 1009.9 1002.1 996.2 1000.9 1008.9 1014.0 1021.1 1021.5 1011.6 1998 1021.0 1019.9 1015.1 1011.3 1009.6 1004.5 999.5 1003.5 1007.3 1016.1 1019.7 1024.2 1012.6 1999 1022.8 1017.2 1014.6 1011.8 1007.2 1001.0 999.9 1002.4 1006.5 1013.8 1020.5 1026.4 1012.0 2000 1021.1 1020.1 1015.3 1010.2 1004.7 1001.6 1001.5 1002.5 1006.1 1016.6 1022.9 1022.8 1012.1 2001 1024.5 1019.7 1014.2 1009.6 1005.6 1000.9 999.9 1003.1 1008.0 1014.5 1019.4 1023.1 1011.9 2002 1023.0 1019.5 1014.9 1010.3 1007.0 1002.0 1000.9 999.2 1007.1 1013.1 1020.5 1022.0 1011.6 2003 1020.9 1016.1 1014.9 1011.7 1010.2 1001.1 995.3 1002.3 1007.7 1012.6 1021.4 1024.7 1011.6 2004 1018.4 1017.5 1016.0 1011.4 1006.6 1001.4 1000.9 999.9 1009.2 1016.6 1018.1 1022.7 1011.6 2005 1021.3 1019.5 1012.9 1013.1 1008.3 1001.3 998.3 1001.0 1005.5 1015.0 1020.9 1022.4 1011.6 MEAN 1022.3 1019.4 1015.2 1011.6 1008.4 1001.9 999.6 1001.9 1008.0 1015.9 1020.4 1023.0 1012.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 50 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1029.9 1023.7 1018.8 1012.4 1009.1 1011.9 1019.3 1025.5 1030.6 1038.4 ****** DAY-HOUR **-** **-** 17- 3 5- 6 18- 6 2- 6 22- 6 31- 3 22- 6 15- 6 16- 6 7- 6 1987 1035.6 1031.7 1025.6 1023.3 1019.1 1010.8 1011.7 1012.6 1018.9 1030.8 1040.1 1039.5 1040.1 DAY-HOUR 12- 6 12- 6 23- 6 22- 6 1- 3 28- 6 29- 3 8- 3 24- 6 28- 6 30- 6 1- 6 1988 1036.4 1036.2 1025.6 1028.4 1017.1 1009.1 1006.8 1009.0 1017.5 1027.1 1029.5 1034.3 1036.4 DAY-HOUR 3- 6 7- 6 17- 6 9- 6 5- 6 8- 6 31- 3 21- 6 30- 6 16- 6 15- 6 30- 6 1989 1038.0 1038.8 1022.9 1023.1 1020.4 1009.1 1007.9 1011.2 1023.3 1026.4 1028.9 1028.0 1038.8 DAY-HOUR 31- 0 4- 6 6- 6 2- 6 1- 6 23-12 21- 6 20- 6 23- 6 25- 3 22- 6 18- 6 1990 1036.4 1032.0 1032.9 1019.0 1017.5 1014.7 1006.9 1008.1 1013.5 1030.1 1032.7 1038.8 1038.8 DAY-HOUR 26- 6 8- 6 21- 6 3- 6 15- 6 1- 6 9- 6 29- 6 27- 6 19- 6 23- 6 28- 6 1991 1033.6 1038.1 1027.6 1021.8 1019.5 1010.8 1006.1 1008.7 1020.6 1023.0 1030.8 1034.5 1038.1 DAY-HOUR 12- 6 15- 6 12- 6 14- 3 25- 3 23- 6 12- 6 27- 6 27- 6 17- 6 27- 6 17- 6 1992 1037.7 1030.0 1036.4 1019.9 1023.6 1010.7 1008.0 1017.3 1019.1 1024.3 1031.2 1032.5 1037.7 DAY-HOUR 9-18 16- 6 12- 6 8- 3 2-18 7- 3 14- 6 31- 6 30- 6 30- 6 4- 6 29- 6 1993 1034.2 1030.6 1027.8 1021.1 1020.9 1016.5 1009.8 1011.1 1016.7 1027.7 1032.4 1032.5 1034.2 DAY-HOUR 6- 6 9- 6 23- 6 1- 6 9- 6 23- 3 28- 3 25- 6 16- 6 8- 6 30- 6 7- 6 1994 1034.7 1032.1 1023.8 1032.1 1017.8 1009.3 1006.4 1007.6 1024.7 1026.4 1025.4 1036.7 1036.7 DAY-HOUR 10- 6 19- 6 17- 6 5- 6 17- 6 9- 6 2- 6 22- 6 23- 6 10- 6 10- 6 8- 0 1995 1033.7 1027.1 1028.2 1020.3 1017.9 1014.2 1003.2 1008.7 1020.2 1029.9 1030.7 1031.5 1033.7 DAY-HOUR 7- 6 12- 6 3- 6 7- 3 29- 6 1- 6 4- 6 25- 6 22- 6 26- 6 28- 6 10- 6 1996 1035.0 1027.4 1022.5 1026.2 1017.5 1011.1 1010.0 1014.6 1017.4 1027.6 1039.0 1034.9 1039.0 DAY-HOUR 26- 6 13- 6 1- 6 4- 6 7- 6 27- 3 4- 6 30- 6 25- 6 18-18 19- 3 3- 6 1997 1032.3 1033.0 1030.5 1022.3 1019.4 1009.0 1003.6 1009.8 1018.6 1022.1 1032.9 1033.6 1033.6 DAY-HOUR 19- 6 7- 6 11- 6 12- 3 7- 6 7- 3 9- 6 28- 6 15- 6 9- 6 8- 6 28- 6 1998 1032.5 1036.9 1025.0 1023.2 1021.9 1013.0 1011.4 1010.0 1015.7 1026.8 1028.8 1033.8 1036.9 DAY-HOUR 4- 6 23- 6 4- 6 7- 3 4- 6 17- 3 21- 6 9- 6 12- 6 10- 6 21- 6 29- 6 1999 1037.6 1027.9 1027.1 1021.3 1015.7 1010.0 1008.3 1012.2 1018.3 1024.7 1034.5 1036.6 1037.6 DAY-HOUR 2- 6 12- 6 19- 6 11- 6 2- 6 8- 6 27- 6 20- 6 29- 6 27- 6 30- 6 6- 6 2000 1032.0 1031.8 1025.8 1019.9 1011.0 1012.7 1011.6 1010.4 1016.0 1026.2 1036.1 1032.1 1036.1 DAY-HOUR 31- 6 11- 6 1- 6 2- 6 5- 6 14- 3 31- 3 23- 6 29-18 16- 6 17- 6 4- 6 2001 1033.8 1031.5 1026.8 1020.5 1013.3 1013.1 1008.3 1011.8 1020.8 1024.9 1032.4 1031.0 1033.8 DAY-HOUR 30- 6 9- 9 12- 3 2- 6 5-15 13- 6 29- 6 14- 6 22- 6 10- 6 20- 6 22- 6 2002 1033.8 1032.6 1034.0 1022.4 1016.1 1012.9 1009.0 1008.5 1015.4 1019.2 1032.6 1033.0 1034.0 DAY-HOUR 26- 6 19- 6 11- 3 1- 3 17- 6 25- 6 2- 6 31- 6 30- 6 11- 6 18- 6 5- 6 2003 1028.5 1025.2 1032.6 1019.6 1023.2 1011.2 1005.3 1008.8 1020.0 1020.9 1037.2 1038.4 1038.4 DAY-HOUR 23- 6 12- 6 2- 6 3- 6 2- 6 7- 6 4- 3 30- 6 27- 6 15- 6 25- 6 12- 6 2004 1028.7 1026.7 1027.1 1020.4 1014.4 1012.7 1009.1 1008.3 1020.0 1026.0 1029.6 1037.4 1037.4 DAY-HOUR 1- 6 8- 6 9- 6 6- 6 3-21 6- 6 18- 6 30- 6 30- 6 27- 6 29- 6 3- 9 2005 1031.2 1031.2 1023.8 1030.5 1014.8 1010.7 1006.7 1007.9 1011.0 1027.1 1028.6 1035.9 1035.9 DAY-HOUR 13- 6 15- 6 27- 6 6- 6 12- 6 9- 6 28- 3 27- 6 22- 6 24- 6 25- 6 31- 6 1986-2005 1038.0 1038.8 1036.4 1032.1 1023.6 1016.5 1011.7 1017.3 1024.7 1030.8 1040.1 1039.5 1040.1 YEAR-DAY 89-31 89- 4 92-12 94- 5 92- 2 93-23 87-29 92-31 94-23 87-28 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 51 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1007.7 1005.9 1001.9 993.9 993.1 999.7 1006.0 1007.1 1008.2 1010.6 ****** DAY-HOUR **-** **-** 8- 3 30-15 31-15 17-12 20-15 15-15 25-12 1-12 7-12 30-12 1987 1012.9 1010.6 1000.2 1001.6 1000.5 997.6 993.4 995.3 1000.6 1004.5 1004.4 1009.1 993.4 DAY-HOUR 6-21 10-12 14- 0 4-15 22-15 9-15 3-12 25-15 6-12 4-12 7-12 24- 0 1988 1009.4 1003.0 1001.3 1000.1 999.8 992.4 988.5 993.3 999.3 1006.5 1008.6 1004.3 988.5 DAY-HOUR 29- 0 2-12 21- 0 23-12 24-15 16-15 21-15 2-15 11-12 30-12 10-12 27- 3 1989 1013.3 1011.3 1000.8 1004.1 996.2 993.1 992.2 991.8 997.4 1004.8 1012.8 1010.2 991.8 DAY-HOUR 17-12 23- 0 29-12 29- 9 31-15 30-18 5-15 1-18 11-12 1-15 19-12 5- 0 1990 1013.0 1004.3 1004.9 997.2 999.3 991.3 992.6 993.8 999.0 1004.5 1006.9 1013.1 991.3 DAY-HOUR 2- 0 15-15 14-15 15-12 11-15 27-12 29-15 8-18 5-12 1-15 1-12 25- 3 1991 1008.0 1009.2 1004.7 1001.6 996.2 990.6 991.3 993.7 997.1 1009.2 1009.0 1010.0 990.6 DAY-HOUR 24-12 20-21 6-15 4-12 22-15 11-15 13-21 6-15 8-12 4-12 5-12 1-12 1992 1010.0 1003.6 999.2 999.8 1003.5 992.9 992.0 993.3 1003.1 1007.2 1005.2 1015.2 992.0 DAY-HOUR 2-21 24-12 30-12 18- 0 20-15 27-12 18-15 1-15 17-15 5-12 25-21 27-12 1993 1014.2 1007.9 1007.7 1000.8 1003.1 996.1 994.1 995.3 998.1 1006.9 1004.0 1016.0 994.1 DAY-HOUR 31-12 3-12 21-15 20-15 17-15 3-15 12-15 12-15 3-12 2-12 11-12 4-12 1994 1008.8 1007.2 999.7 1003.0 1001.1 993.2 988.8 990.8 999.8 1007.7 1004.1 1003.8 988.8 DAY-HOUR 16-12 1- 3 7-12 26-15 13-12 25-15 30-15 1-12 1-15 2-12 25-21 3-21 1995 1014.6 1002.7 1001.5 1003.4 1003.1 992.6 987.4 993.2 997.3 1003.7 1006.0 1019.3 987.4 DAY-HOUR 11-12 5-12 26- 0 16-12 6-12 22-12 16-15 22-12 20-12 12-12 11-12 25-12 1996 1012.8 1006.9 1006.1 1001.9 998.9 907.2 993.2 994.5 997.8 1003.5 1014.2 1013.4 907.2 DAY-HOUR 6-12 10-12 26- 0 13-12 29-12 22-12 6-12 8-12 8-15 27-12 2- 3 25-12 1997 1007.2 1008.3 999.2 999.5 999.0 993.3 988.6 992.1 997.2 1006.4 1013.5 1010.4 988.6 DAY-HOUR 16-12 22-12 7-12 10-12 4-12 30-15 11-15 14-12 2-12 7- 0 5-12 10- 3 1998 1008.0 1004.0 1001.2 1000.7 998.5 996.3 990.2 996.6 998.9 1001.7 1010.2 1014.5 990.2 DAY-HOUR 13- 0 8- 0 18-12 17-12 21-12 29-15 4-15 21-15 3-15 1-12 1-12 31-12 1999 1012.7 1002.9 1004.1 998.4 993.8 990.2 992.2 995.8 997.8 1007.6 1006.7 1015.5 990.2 DAY-HOUR 9-12 20-15 26-12 8-12 20-12 25-12 4-15 14-12 16-12 19-12 1-12 16- 0 2000 1006.4 1007.4 1002.6 1003.8 995.0 992.0 990.2 994.0 995.4 1007.8 1014.9 1013.4 990.2 DAY-HOUR 21-12 7- 0 24-18 10-12 26-15 24-15 11-15 30-15 1-12 1-12 2-12 15-12 2001 1017.7 1000.2 999.0 998.3 995.5 991.9 989.2 995.1 997.7 1006.2 1004.1 1014.3 989.2 DAY-HOUR 4-12 21-12 25- 0 26-12 29-15 17-15 10-15 27-12 5-15 1-12 18-15 20-12 2002 1010.3 1005.0 1002.1 1000.3 998.6 991.2 990.5 991.6 1001.0 1005.7 1008.0 1006.9 990.5 DAY-HOUR 8- 0 25-12 28- 9 3-12 29-12 19-15 24-15 8-12 10-12 21-12 12- 9 21-12 2003 1006.7 1005.9 999.2 1002.1 1001.8 991.2 989.8 995.5 998.6 1003.2 1009.7 1011.7 989.8 DAY-HOUR 28-15 20-12 26-12 27-15 23-12 30-15 24-15 1- 0 7-12 27-12 14-12 6-12 2004 1009.2 1001.0 1001.9 998.8 993.6 994.7 995.4 993.1 999.1 1007.5 1000.7 1012.6 993.1 DAY-HOUR 27-12 15-12 31-12 17- 0 13-12 17-12 23-12 12-12 11-15 3-12 23-12 16-12 2005 1008.7 1007.1 1000.7 1001.2 999.1 989.4 988.2 990.7 997.7 1003.0 1011.4 1009.4 988.2 DAY-HOUR 23- 0 2- 0 24- 9 26-18 5-21 20-15 5-15 7-15 5-12 20-12 6- 0 24- 0 1986-2005 1006.4 1000.2 999.0 997.2 993.6 907.2 987.4 990.7 995.4 1001.7 1000.7 1003.8 907.2 YEAR-DAY 0-21 1-21 1-25 90-15 4-13 96-22 95-16 5- 7 0- 1 98- 1 4-23 94- 3 96-22 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 52 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF COMPUTED QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1018.0 1011.4 1008.5 1000.0 1001.4 1004.6 1010.8 1015.1 1019.3 1023.0 ****** 1987 1022.4 1019.2 1011.6 1011.6 1008.3 1002.3 1001.3 1001.3 1008.0 1019.0 1020.7 1021.4 1012.3 1988 1020.9 1018.6 1011.3 1011.5 1006.4 1000.6 997.2 999.5 1007.0 1015.1 1018.5 1019.3 1010.5 1989 1022.8 1024.9 1013.0 1012.1 1008.4 1000.4 999.7 1000.8 1006.3 1014.3 1018.7 1018.9 1011.7 1990 1022.3 1017.5 1017.8 1009.3 1005.8 999.9 998.8 1000.0 1005.0 1014.8 1019.0 1021.6 1011.0 1991 1021.2 1021.3 1014.6 1010.6 ****** 1001.5 997.5 1000.5 1008.2 1015.4 1020.1 1020.1 ****** 1992 1022.5 1016.7 1017.4 1009.9 1010.5 1001.8 998.2 1003.7 1009.8 1014.6 1019.2 1020.6 1012.1 1993 1023.8 1019.5 1016.1 1010.3 1008.5 1002.2 1000.6 1002.8 1006.4 1019.0 1020.3 1023.3 1012.7 1994 1020.4 1017.1 1013.4 1011.7 1007.8 999.3 995.9 998.2 1011.8 1017.2 1016.3 1023.7 1011.0 1995 1021.7 1017.7 1014.1 1010.1 1010.0 1001.9 995.0 999.1 1006.4 1015.3 1018.0 1024.6 1011.1 1996 1024.4 1017.2 1014.4 1012.3 1008.3 1001.7 1002.0 1002.0 1004.1 1015.0 1023.2 1022.7 1012.3 1997 1019.0 1019.7 1012.7 1009.6 1009.0 1001.1 995.3 999.9 1008.0 1013.1 1020.1 1020.4 1010.6 1998 1020.1 1019.0 1014.1 1010.3 1008.6 1003.4 998.4 1002.4 1006.3 1015.1 1018.7 1023.3 1011.6 1999 1021.9 1016.2 1013.7 1010.9 1006.3 1000.1 998.9 1001.4 1005.5 1012.9 1019.5 1025.4 1011.1 2000 1020.2 1019.2 1014.4 1009.3 1003.9 1000.7 1000.5 1001.5 1005.2 1015.6 1021.9 1021.8 1011.2 2001 1023.7 1018.7 1013.3 1008.7 1004.7 999.8 998.8 1002.0 1007.2 1013.5 1018.5 1022.1 1010.9 2002 1022.1 1018.6 1014.1 1009.3 1006.0 1001.4 1000.4 999.2 1007.0 1013.0 1020.5 1022.0 1011.1 2003 1020.9 1016.1 1014.9 1011.7 1010.2 1001.1 995.3 1002.3 1007.7 1012.5 1021.2 1024.5 1011.5 2004 1018.4 1017.5 1016.0 1011.4 1006.6 1001.3 1000.9 999.9 1009.2 1016.6 1018.1 1022.7 1011.5 2005 1021.3 1019.5 1012.9 1013.1 1008.3 1001.3 998.3 1001.0 1005.4 1014.9 1020.8 1022.3 1011.6 MEAN 1021.6 1018.6 1014.4 1010.8 1007.7 1001.1 998.7 1001.1 1007.3 1015.1 1019.6 1022.2 1011.5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 53 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF COMPUTED QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1029.2 1022.5 1017.9 1011.4 1008.1 1010.8 1018.2 1024.4 1029.6 1037.6 ****** DAY-HOUR **-** **-** 17- 3 5- 6 18- 6 2- 6 22- 6 31- 3 22- 6 15- 6 16- 6 7- 6 1987 1034.8 1030.7 1024.8 1022.5 1018.2 1009.6 1010.5 1011.4 1017.8 1029.1 1039.3 1038.7 1039.3 DAY-HOUR 12- 6 12- 6 23- 6 22- 6 1- 3 28- 6 29- 3 8- 3 24- 6 28- 6 30- 6 1- 6 1988 1035.5 1035.5 1024.6 1027.4 1016.1 1008.3 1005.6 1007.7 1016.4 1025.9 1028.9 1033.5 1035.5 DAY-HOUR 3- 6 7- 6 17- 6 9- 6 5- 6 8- 6 31- 3 21- 6 30- 6 16- 6 16- 6 30- 6 1989 1034.0 1038.1 1021.5 1022.1 1019.6 1007.8 1006.8 1010.1 1022.4 1025.6 1028.0 1027.0 1038.1 DAY-HOUR 30- 6 4- 6 7- 6 2- 6 1- 6 2- 3 21- 6 20- 6 23- 6 25- 6 22- 6 18- 6 1990 1035.6 1031.1 1032.1 1017.8 1016.6 1011.8 1005.9 1008.5 1012.5 1029.2 1031.7 1039.2 1039.2 DAY-HOUR 26- 6 8- 6 21- 6 3- 6 15- 6 1- 6 9- 6 29- 6 27- 6 19- 6 23- 6 28- 6 1991 1032.7 1037.4 1026.8 1020.6 ****** 1009.6 1005.1 1007.6 1019.6 1021.8 1029.9 1033.0 ****** DAY-HOUR 12- 6 15- 6 12- 6 14- 3 **-** 23- 6 12- 6 27- 6 27- 6 13- 6 27- 6 17- 6 1992 1037.1 1029.2 1035.6 1018.8 1022.5 1009.7 1005.3 1016.3 1017.9 1023.5 1030.1 1031.7 1037.1 DAY-HOUR 10- 6 16- 6 12- 6 8- 3 2-18 11- 3 14- 3 31- 6 30- 6 30- 6 4- 6 29- 6 1993 1033.3 1029.6 1027.1 1020.3 1019.9 1015.4 1008.6 1009.9 1016.7 1026.8 1031.6 1031.6 1033.3 DAY-HOUR 6- 6 9- 6 23- 6 1- 6 9- 6 23- 3 28- 3 25- 6 23- 6 8- 6 30- 6 7- 6 1994 1033.8 1031.4 1022.9 1031.1 1016.1 1008.4 1005.3 1006.4 1023.8 1025.5 1024.4 1036.0 1036.0 DAY-HOUR 10- 6 19- 6 17- 6 5- 6 18- 6 9- 6 2- 6 22- 6 23- 6 10- 6 10- 6 8- 3 1995 1032.9 1026.2 1027.3 1019.2 1016.9 1013.0 1002.2 1007.4 1019.2 1028.8 1029.9 1030.6 1032.9 DAY-HOUR 7- 6 12- 6 3- 6 7- 3 29- 9 1- 6 4- 6 25- 6 22- 6 26- 6 28- 6 11- 6 1996 1034.2 1026.4 1021.5 1025.2 1016.4 1009.9 1008.8 1013.5 1016.3 1026.4 1037.8 1034.2 1037.8 DAY-HOUR 26- 6 13- 6 1- 6 4- 6 7- 6 12- 6 4- 6 30- 6 25- 6 19- 3 18- 6 3- 6 1997 1031.5 1032.3 1030.5 1021.5 1018.5 1007.9 1002.6 1007.9 1017.7 1021.2 1031.8 1032.8 1032.8 DAY-HOUR 19- 6 7- 6 11- 6 12- 6 7- 6 7- 3 9- 6 28- 6 15- 6 9- 6 8- 6 28- 6 1998 1031.5 1036.1 1024.2 1022.3 1020.8 1011.9 1009.9 1008.6 1014.6 1025.6 1027.9 1032.9 1036.1 DAY-HOUR 4- 6 23- 6 4- 6 7- 3 4- 6 17- 3 21- 6 9- 6 12- 6 10- 6 21- 6 29- 6 1999 1036.8 1026.9 1026.2 1020.4 1014.8 1008.9 1006.6 1011.1 1017.2 1023.6 1033.6 1035.8 1036.8 DAY-HOUR 2- 6 12- 6 19- 6 11- 6 2- 6 17- 3 28- 3 20- 6 29- 6 27- 6 30- 6 6- 6 2000 1031.2 1031.0 1024.5 1019.0 1010.2 1011.8 1010.4 1009.1 1014.9 1025.1 1035.1 1031.0 1035.1 DAY-HOUR 31- 6 11- 6 16- 6 2- 6 11- 6 14- 3 31- 3 23- 6 29-18 16- 6 17- 6 4- 6 2001 1033.3 1031.5 1026.0 1019.6 1012.0 1011.4 1007.1 1010.8 1019.8 1023.9 1031.5 1030.1 1033.3 DAY-HOUR 29- 6 9- 6 12- 3 2- 6 5-15 2- 6 29- 6 14- 6 22- 6 10- 6 20- 6 22- 6 2002 1033.0 1031.7 1033.2 1021.4 1015.0 1011.9 1008.7 1008.4 1015.4 1019.1 1032.6 1033.0 1033.2 DAY-HOUR 26- 6 19- 6 11- 3 1- 3 14- 6 25- 6 30- 3 31- 6 30- 6 11- 6 18- 6 5- 6 2003 1028.4 1025.2 1032.5 1019.6 1023.2 1011.2 1005.3 1008.8 1019.9 1020.9 1036.4 1038.4 1038.4 DAY-HOUR 23- 6 12- 6 2- 6 3- 6 2- 6 7- 6 4- 3 30- 6 27- 6 15- 6 25- 6 12- 6 2004 1028.7 1026.6 1027.1 1020.4 1014.4 1012.7 1009.1 1008.3 1020.0 1026.1 1029.6 1036.7 1036.7 DAY-HOUR 1- 6 8- 6 9- 6 6- 6 3-21 6- 6 18- 6 30- 6 30- 6 27- 6 29- 6 4- 6 2005 1031.2 1031.2 1023.8 1030.4 1014.4 1010.7 1006.9 1007.9 1010.8 1027.1 1028.6 1035.9 1035.9 DAY-HOUR 13- 6 15- 6 27- 6 6- 6 19- 0 9- 6 29- 3 27- 6 9- 6 24- 6 25- 6 31- 6 1986-2005 1037.1 1038.1 1035.6 1031.1 1023.2 1015.4 1010.5 1016.3 1023.8 1029.2 1039.3 1039.2 1039.3 YEAR-DAY 92-10 89- 4 92-12 94- 5 3- 2 93-23 87-29 92-31 94-23 90-19 87-30 90-28 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 54 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF COMPUTED QFF PRESSURE IN HPA YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1007.6 1004.9 1001.1 992.6 992.2 998.7 1005.1 1006.0 1007.3 1009.5 ****** DAY-HOUR **-** **-** 8- 3 30-15 31-15 17-12 20-15 4-15 25-12 1-12 7-12 30-12 1987 1011.8 1009.2 999.2 1000.5 999.6 996.6 992.7 994.6 999.7 1003.7 1003.5 1007.9 992.7 DAY-HOUR 27- 0 10-15 14- 0 4-15 22-15 9-15 3-15 25-15 6-12 4-12 7-12 24- 0 1988 1008.3 1002.2 1000.5 999.2 999.1 991.6 990.6 992.4 998.6 1006.0 1007.8 1003.5 990.6 DAY-HOUR 29- 0 2-12 21- 0 23-12 24-15 16-15 18-15 2-15 12-12 30-12 10-12 27- 3 1989 1012.4 1010.4 999.9 1003.3 995.7 992.3 991.4 991.1 996.7 1004.1 1011.9 1008.9 991.1 DAY-HOUR 17-12 23- 0 29-12 29- 9 31-15 30-18 5-15 1-18 11-12 1-15 19-12 5- 0 1990 1011.9 1003.4 1005.7 996.5 998.3 990.5 992.0 993.1 998.0 1003.7 1005.9 1012.1 990.5 DAY-HOUR 2- 0 15-15 14-12 15-12 12- 9 27-12 29-15 8-18 5-12 1-15 1-12 25- 3 1991 1007.1 1008.2 1003.7 1001.5 ****** 989.8 990.4 993.0 996.3 1008.3 1008.1 1009.1 ****** DAY-HOUR 24-12 21- 0 6-15 4-12 **-** 11-15 13-21 6-15 8-12 4-12 5-12 1-12 1992 1009.0 1002.5 998.7 998.9 1002.7 992.1 991.3 992.6 1002.2 1006.5 1004.4 1014.3 991.3 DAY-HOUR 2-21 24-12 30-12 18- 0 20-15 27-15 18-15 1-15 17-15 5-12 25-21 27-12 1993 1013.1 1006.8 1006.7 1000.1 1002.1 995.5 993.3 994.2 997.3 1006.0 1003.1 1014.9 993.3 DAY-HOUR 31-12 3-12 21-15 20-15 17-15 3-15 12-15 12-15 3-12 2-12 11-12 28-12 1994 1007.8 1006.1 998.9 1002.0 1000.7 992.3 988.7 990.0 999.0 1006.7 1003.7 1002.7 988.7 DAY-HOUR 16-12 1- 3 7-12 26-15 13-12 25-15 30-18 1-12 2-15 2-12 25-21 4- 0 1995 1014.1 1001.6 1000.7 1002.6 1002.3 991.3 986.7 992.4 996.2 1002.9 1005.1 1018.3 986.7 DAY-HOUR 11-12 5-12 26- 0 16-12 6-12 22-12 16-15 22-12 20-12 12-12 11-12 25-12 1996 1011.8 1005.7 1005.2 1001.0 998.1 994.7 992.4 993.8 997.0 1002.8 1013.7 1012.6 992.4 DAY-HOUR 6-12 10-12 26- 0 13-12 29-12 19-15 7-15 8-12 8-15 27-12 6-12 25-12 1997 1005.2 1007.5 998.5 998.9 998.2 992.5 987.8 991.3 996.4 1005.3 1012.5 1009.2 987.8 DAY-HOUR 16-12 22-12 7-12 10-12 4-12 30-15 15-21 14-12 2-12 7- 0 5-12 10-12 1998 1007.0 1002.9 1000.1 1000.0 997.8 995.6 989.5 995.6 998.1 1001.0 1009.4 1013.5 989.5 DAY-HOUR 13- 0 8- 0 18-12 17-12 21-12 29-15 5-15 21-15 3-15 1-12 1-12 31-12 1999 1011.8 1001.9 1003.4 997.7 993.2 989.7 991.5 994.9 996.9 1006.7 1007.5 1014.4 989.7 DAY-HOUR 9-12 20-15 26-12 8-12 20-12 25-12 4-15 14-12 16-12 19-12 1- 9 16- 0 2000 1005.6 1006.5 1001.8 1003.1 994.3 991.2 989.1 992.9 994.9 1006.9 1013.9 1012.3 989.1 DAY-HOUR 21-12 7- 3 24-15 10-12 26-15 24-15 11-15 30-15 1-12 1-12 2-12 15-12 2001 1016.6 999.3 998.3 997.5 994.9 990.8 989.0 994.3 996.6 1005.4 1003.1 1013.9 989.0 DAY-HOUR 4-12 21-12 25- 0 26-12 29-15 17-15 10-15 27-12 5-15 1-12 18-15 5-12 2002 1009.2 1004.1 1001.3 999.2 998.1 990.9 990.5 991.6 1001.0 1005.6 1008.0 1006.8 990.5 DAY-HOUR 8- 0 25-12 28- 9 3-12 29-12 20-15 24-15 8-12 10-15 21-12 12- 9 21-12 2003 1006.7 1005.9 999.2 1002.1 1001.7 991.2 989.5 995.4 998.6 1003.2 1009.7 1011.7 989.5 DAY-HOUR 28-15 20-12 26-12 27-15 23-12 30-15 24-15 1- 0 7-12 27-12 14-12 6-12 2004 1009.2 1001.0 1001.9 998.8 993.3 994.7 995.5 993.1 999.2 1007.5 1000.7 1012.6 993.1 DAY-HOUR 27-12 15-12 31-12 17- 0 13- 9 17-12 10- 9 12-12 11-15 3-12 23-12 16-12 2005 1008.6 1007.0 1000.7 1001.3 999.1 989.4 988.2 990.8 997.4 1003.0 1010.3 1009.3 988.2 DAY-HOUR 23- 0 2- 0 24- 9 26-18 5-21 20-15 5-15 7-15 5-15 20-12 5-21 24- 0 1986-2005 1005.2 999.3 998.3 996.5 993.2 989.4 986.7 990.0 994.9 1001.0 1000.7 1002.7 986.7 YEAR-DAY 97-16 1-21 1-25 90-15 99-20 5-20 95-16 94- 1 0- 1 98- 1 4-23 94- 4 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 55 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFE PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 913.6 912.5 907.2 908.8 910.9 915.2 917.7 918.1 919.2 ****** 1987 919.4 917.5 911.4 914.0 913.3 909.4 908.7 908.6 913.1 919.3 919.9 919.0 914.5 1988 917.6 916.2 911.5 913.5 911.4 908.1 905.6 907.2 911.9 917.0 917.9 916.8 912.9 1989 918.0 919.7 912.9 914.9 912.8 907.9 907.8 908.2 911.3 916.9 918.4 916.8 913.8 1990 918.0 914.8 917.2 911.9 910.9 907.6 906.6 907.6 910.3 917.0 918.5 918.5 913.2 1991 918.1 917.8 914.0 913.4 ****** 908.4 905.4 907.4 913.1 917.4 919.4 916.9 ****** 1992 917.7 914.0 915.3 911.8 913.5 908.6 906.2 910.1 913.8 916.6 918.2 917.6 913.6 1993 919.0 916.6 914.9 912.9 912.5 908.7 908.2 909.8 912.0 920.0 918.1 920.3 914.4 1994 917.7 914.8 913.9 914.6 912.4 906.5 904.6 906.1 915.8 919.0 916.4 919.6 913.4 1995 918.9 916.2 914.5 912.8 914.4 908.9 903.5 906.9 911.7 916.9 917.4 920.7 913.6 1996 920.0 915.0 913.2 914.1 913.2 908.8 909.3 909.2 910.2 916.9 921.5 920.2 914.3 1997 916.6 916.7 912.1 911.9 913.9 908.6 904.3 907.5 913.1 916.2 919.3 918.0 913.2 1998 916.4 916.6 914.1 913.4 913.1 910.7 906.6 909.7 911.9 917.0 918.7 921.0 914.1 1999 918.9 915.2 913.7 913.8 911.9 907.9 906.9 909.1 911.0 915.9 918.3 922.5 913.7 2000 917.1 916.9 914.4 912.9 909.9 907.9 908.2 909.1 910.8 917.2 920.4 919.0 913.6 2001 919.8 916.6 914.2 912.5 910.1 907.1 906.7 909.4 912.4 916.1 917.7 919.9 913.5 2002 918.7 917.3 914.7 911.7 910.9 908.4 908.2 907.0 912.7 916.2 919.7 918.6 913.7 2003 918.1 914.2 914.4 913.9 914.2 908.0 904.0 909.5 912.6 915.8 919.8 921.3 913.8 2004 916.0 916.4 916.8 913.3 911.2 908.8 908.5 907.6 914.2 918.7 917.8 919.3 914.1 2005 917.9 916.4 913.6 915.8 913.0 908.6 906.6 908.5 911.2 917.5 919.8 919.9 914.1 MEAN 918.1 916.3 914.0 913.3 912.4 908.3 906.7 908.5 912.4 917.3 918.8 919.3 913.8 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 56 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFE PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 918.9 918.2 914.3 912.2 914.5 918.8 923.8 925.3 931.1 ****** DAY ** ** ** 6 20 3 22 25 22 15 16 7 1987 927.5 924.3 919.3 919.4 918.1 913.4 913.0 915.3 918.4 925.7 931.5 931.3 931.5 DAY 12 7 23 22 1 28 11 8 26 29 30 1 1988 927.1 927.1 920.7 923.5 917.4 912.7 910.4 911.5 917.2 923.6 923.4 925.3 927.1 DAY 3 7 17 9 17 8 31 22 14 17 16 30 1989 925.2 926.6 919.2 919.6 917.4 911.1 912.1 913.3 921.5 923.6 922.6 922.0 926.6 DAY 31 4 8 2 1 4 20 20 24 25 8 19 1990 926.1 923.5 925.4 916.6 916.5 914.6 910.0 911.7 914.6 925.8 927.0 927.8 927.8 DAY 26 8 10 25 15 1 9 30 28 16 23 28 1991 926.0 928.0 920.0 918.6 ****** 914.0 909.8 911.0 919.3 920.8 924.0 924.6 ****** DAY 13 15 12 14 ** 23 12 23 27 17 27 17 1992 928.6 922.5 925.7 916.5 918.7 914.0 910.4 917.4 918.5 921.9 925.6 923.2 928.6 DAY 5 16 12 8 3 7 14 31 2 30 4 29 1993 926.6 922.6 920.0 919.0 920.2 918.0 914.0 913.5 917.9 925.0 925.0 925.5 926.6 DAY 6 10 17 1 9 23 27 29 16 17 22 27 1994 926.5 924.0 918.9 924.0 917.6 911.1 909.2 910.4 922.9 924.3 922.6 928.1 928.1 DAY 10 19 18 5 18 9 2 16 23 24 2 8 1995 925.0 921.5 922.4 918.0 918.0 916.0 908.4 911.4 919.0 925.1 923.4 925.3 925.3 DAY 7 14 3 7 26 1 4 25 22 27 28 11 1996 927.0 920.5 918.5 922.0 917.0 914.6 915.0 917.0 918.0 924.3 931.4 927.0 931.4 DAY 26 24 29 5 7 12 4 30 25 19 19 8 1997 923.5 924.0 923.0 918.0 919.2 912.4 908.4 911.6 918.0 921.0 928.6 926.0 928.6 DAY 24 8 12 13 12 1 8 29 19 9 8 29 1998 923.6 928.8 919.5 921.8 919.5 916.0 914.0 913.5 916.8 923.8 924.7 926.9 928.8 DAY 4 23 22 12 4 17 20 3 13 10 21 10 1999 928.0 922.0 921.5 918.0 917.0 913.6 911.6 915.7 917.0 921.9 924.2 928.7 928.7 DAY 2 12 19 11 28 17 28 20 29 27 30 6 2000 925.0 925.6 920.6 917.5 914.0 914.3 916.0 913.4 916.8 922.6 928.6 924.4 928.6 DAY 31 11 1 2 7 14 31 21 30 16 17 4 2001 924.3 925.2 922.4 920.4 914.0 914.0 912.3 914.5 919.0 923.0 923.5 924.0 925.2 DAY 30 10 2 2 23 2 28 12 22 10 20 23 2002 926.0 925.9 927.3 919.4 915.0 915.0 913.8 911.9 917.1 920.1 927.6 927.0 927.6 DAY 26 6 11 1 17 25 30 30 23 11 18 4 2003 923.0 920.6 925.0 919.8 920.9 913.2 909.3 912.9 920.1 920.5 929.2 931.1 931.1 DAY 12 13 3 8 2 7 3 4 27 16 26 12 2004 923.7 921.5 923.7 919.1 917.3 916.1 912.8 911.6 920.2 923.6 923.7 929.5 929.5 DAY 1 10 9 11 4 6 18 30 30 27 29 4 2005 924.0 924.4 919.1 924.7 918.4 913.0 911.8 913.0 913.6 923.8 923.8 928.1 928.1 DAY 9 16 27 6 19 9 29 15 22 24 14 29 1986-2005 928.6 928.8 927.3 924.7 920.9 918.0 916.0 917.4 922.9 925.8 931.5 931.3 931.5 YEAR-DAY 92- 5 98-23 2-11 5- 6 3- 2 93-23 0-31 92-31 94-23 90-16 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 57 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFE PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 909.7 908.0 902.7 904.4 907.1 912.0 913.1 909.5 911.4 ****** DAY ** ** ** 11 3 17 20 5 6 1 8 28 1987 911.2 911.3 900.8 907.4 907.8 905.6 903.8 904.6 909.6 909.8 911.8 908.0 900.8 DAY 3 10 14 5 23 10 3 25 6 4 7 24 1988 908.1 906.8 902.6 906.5 906.2 902.6 901.6 903.1 906.3 910.1 910.9 903.5 901.6 DAY 29 2 5 25 28 24 17 30 12 31 20 27 1989 910.9 909.5 903.8 909.2 908.5 903.0 902.2 901.6 906.0 910.0 912.8 908.8 901.6 DAY 12 23 29 29 31 10 6 2 12 2 20 5 1990 910.5 905.1 911.6 906.0 904.1 900.8 903.2 903.6 907.0 909.6 910.1 912.0 900.8 DAY 23 16 25 16 13 27 5 8 6 1 1 25 1991 908.0 909.0 904.2 905.8 ****** 900.4 898.8 903.1 906.0 914.4 912.5 909.9 ****** DAY 26 21 7 10 ** 12 14 12 8 15 5 2 1992 908.3 906.9 904.3 903.0 909.2 901.8 902.4 902.5 909.0 912.4 906.9 914.2 901.8 DAY 3 25 31 18 10 27 20 1 18 6 26 28 1993 909.6 909.2 908.0 909.0 908.7 905.0 902.0 904.2 907.0 913.0 907.0 913.2 902.0 DAY 9 3 22 13 6 16 12 12 3 2 11 5 1994 908.0 908.0 905.3 907.9 908.2 902.2 900.0 900.6 908.2 914.0 905.4 903.2 900.0 DAY 16 1 12 2 3 22 31 2 1 15 26 4 1995 913.1 907.1 904.6 908.4 911.0 902.4 899.5 903.2 905.9 911.0 912.0 916.8 899.5 DAY 17 5 26 18 7 22 17 23 20 12 25 4 1996 914.3 907.2 907.1 907.7 908.3 905.0 902.3 904.0 904.7 909.0 915.3 914.3 902.3 DAY 7 11 26 10 25 19 7 8 22 27 29 25 1997 907.4 910.8 904.8 905.5 907.3 903.6 898.6 902.5 907.1 911.0 915.2 909.0 898.6 DAY 17 27 25 10 5 30 16 6 3 7 19 10 1998 904.8 904.6 904.0 906.2 906.6 906.0 900.0 906.0 906.4 909.7 913.0 914.3 900.0 DAY 13 8 30 22 21 29 8 22 5 1 11 21 1999 912.2 904.8 907.8 907.3 905.5 899.3 902.1 904.8 905.0 913.6 911.0 913.8 899.3 DAY 10 21 22 14 20 25 23 14 16 19 26 16 2000 909.0 905.7 906.8 909.4 904.7 902.6 901.7 902.0 903.0 912.1 915.2 911.7 901.7 DAY 21 7 25 21 20 24 12 31 1 1 22 15 2001 915.9 905.2 902.7 907.3 903.0 900.7 900.3 904.2 906.7 911.3 906.9 914.2 900.3 DAY 4 21 25 9 30 18 11 24 5 1 18 5 2002 909.0 909.1 907.2 904.2 906.0 902.0 903.1 901.8 907.9 911.7 911.7 908.1 901.8 DAY 8 27 27 4 20 20 25 18 11 22 12 22 2003 906.4 906.4 905.4 907.9 907.7 900.7 900.4 904.1 906.4 910.8 913.0 912.8 900.4 DAY 29 19 13 28 8 30 31 1 7 27 14 7 2004 909.0 907.8 908.8 903.5 901.1 904.5 904.0 902.5 908.9 912.5 909.1 912.1 901.1 DAY 24 15 31 17 13 18 11 4 11 22 23 16 2005 906.0 907.6 906.0 909.0 904.5 902.4 899.5 902.1 906.4 910.6 912.9 908.7 899.5 DAY 23 2 24 4 6 20 6 8 5 20 6 24 1986-2005 904.8 904.6 900.8 903.0 901.1 899.3 898.6 900.6 903.0 909.0 905.4 903.2 898.6 YEAR-DAY 98-13 98- 8 87-14 92-18 4-13 99-25 97-16 94- 2 0- 1 96-27 94-26 94- 4 97-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 58 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QNH PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1014.5 1013.3 1007.6 1009.3 1011.6 1016.2 1018.9 1019.4 1020.6 ****** 1987 1020.8 1018.8 1012.1 1014.9 1014.1 1010.0 1009.2 1009.1 1014.0 1020.7 1021.4 1020.3 1015.4 1988 1018.9 1017.4 1012.2 1014.4 1012.2 1008.5 1005.7 1007.5 1012.6 1018.3 1019.2 1018.0 1013.7 1989 1019.3 1021.1 1013.8 1015.9 1013.7 1008.2 1008.2 1008.6 1012.0 1018.1 1019.7 1017.9 1014.7 1990 1019.3 1015.8 1018.4 1012.6 1011.6 1007.9 1006.9 1007.9 1010.9 1018.2 1019.9 1019.9 1014.1 1991 1019.4 1019.1 1015.0 1014.3 ****** 1008.8 1005.6 1007.7 1013.9 1018.7 1020.8 1018.1 ****** 1992 1018.9 1014.9 1016.4 1012.5 1014.4 1009.0 1006.4 1010.6 1014.8 1017.7 1019.5 1018.8 1014.5 1993 1020.4 1017.8 1015.9 1013.8 1013.3 1009.1 1008.6 1010.4 1012.7 1021.5 1019.3 1021.8 1015.4 1994 1018.9 1015.8 1014.8 1015.6 1013.2 1006.7 1004.7 1006.3 1016.9 1020.4 1017.5 1021.1 1014.3 1995 1020.3 1017.3 1015.4 1013.6 1015.4 1009.4 1003.5 1007.2 1012.4 1018.1 1018.7 1022.2 1014.5 1996 1021.4 1016.0 1014.1 1015.0 1014.0 1009.3 1009.9 1009.7 1010.8 1018.1 1023.1 1021.7 1015.2 1997 1017.8 1017.9 1012.9 1012.7 1014.8 1009.1 1004.4 1007.9 1013.9 1017.3 1020.7 1019.3 1014.0 1998 1017.5 1017.7 1015.0 1014.2 1013.9 1011.3 1006.8 1010.2 1012.7 1018.2 1020.1 1022.6 1015.0 1999 1020.2 1016.3 1014.6 1014.7 1012.6 1008.3 1007.2 1009.6 1011.6 1017.0 1019.6 1024.2 1014.7 2000 1018.3 1018.1 1015.4 1013.7 1010.5 1008.3 1008.6 1009.6 1011.5 1018.4 1021.9 1020.3 1014.5 2001 1021.3 1017.7 1015.1 1013.3 1010.7 1007.4 1007.0 1010.0 1013.2 1017.3 1019.0 1021.3 1014.4 2002 1020.1 1018.5 1015.6 1012.5 1011.5 1008.9 1008.6 1007.3 1013.5 1017.4 1021.1 1019.9 1014.6 2003 1019.3 1015.1 1015.4 1014.8 1015.2 1008.4 1004.0 1010.0 1013.4 1016.8 1021.3 1022.9 1014.7 2004 1017.1 1017.6 1018.0 1014.2 1011.9 1009.3 1008.9 1008.0 1015.1 1020.1 1019.1 1020.7 1015.0 2005 1019.2 1017.6 1014.5 1016.9 1013.8 1009.0 1006.9 1009.0 1011.9 1018.8 1021.2 1021.4 1015.0 MEAN 1019.4 1017.4 1015.0 1014.2 1013.2 1008.7 1007.0 1008.9 1013.2 1018.5 1020.1 1020.7 1014.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 59 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QNH PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1020.3 1019.5 1015.3 1013.0 1015.5 1020.2 1025.6 1027.2 1033.5 ****** DAY ** ** ** 6 20 3 22 25 22 15 16 7 1987 1029.6 1026.1 1020.7 1020.8 1019.4 1014.3 1013.8 1016.3 1019.7 1027.7 1034.0 1033.8 1034.0 DAY 12 7 23 22 1 28 11 8 26 29 30 1 1988 1029.2 1029.2 1022.2 1025.3 1018.6 1013.5 1011.0 1012.2 1018.4 1025.4 1025.2 1027.2 1029.2 DAY 3 7 17 9 17 8 31 22 14 17 16 30 1989 1027.1 1028.6 1020.6 1021.0 1018.6 1011.8 1012.9 1014.2 1023.1 1025.4 1024.3 1023.6 1028.6 DAY 31 4 8 2 1 4 20 20 24 25 8 19 1990 1028.1 1025.3 1027.3 1017.8 1017.7 1015.6 1010.6 1012.4 1015.6 1027.8 1029.1 1030.0 1030.0 DAY 26 8 10 25 15 1 9 30 28 16 23 28 1991 1028.0 1030.2 1021.5 1019.9 ****** 1014.9 1010.4 1011.7 1020.7 1022.3 1025.8 1026.5 ****** DAY 13 15 12 14 ** 23 12 23 27 17 27 17 1992 1030.8 1024.2 1027.7 1017.7 1020.1 1014.9 1011.0 1018.6 1019.8 1023.5 1027.6 1024.9 1030.8 DAY 5 16 12 8 3 7 14 31 2 30 4 29 1993 1028.6 1024.3 1021.5 1020.4 1021.7 1019.3 1014.9 1014.4 1019.2 1026.9 1026.9 1027.5 1028.6 DAY 6 10 17 1 9 23 27 29 16 17 22 27 1994 1028.5 1025.8 1020.3 1025.8 1018.9 1011.8 1009.7 1011.0 1024.6 1026.1 1024.3 1030.3 1030.3 DAY 10 19 18 5 18 9 2 16 23 24 2 8 1995 1026.9 1023.1 1024.1 1019.3 1019.3 1017.1 1008.8 1012.1 1020.4 1027.0 1025.2 1027.2 1027.2 DAY 7 14 3 7 26 1 4 25 22 27 28 11 1996 1029.1 1022.0 1019.8 1023.6 1018.2 1015.6 1016.0 1018.2 1019.3 1026.1 1033.9 1029.1 1033.9 DAY 26 24 29 5 7 12 4 30 25 19 19 8 1997 1025.3 1025.8 1024.7 1019.3 1020.6 1013.2 1008.8 1012.3 1019.3 1022.6 1030.8 1028.0 1030.8 DAY 24 8 12 13 12 1 8 29 19 9 8 29 1998 1025.4 1031.0 1020.9 1023.4 1020.9 1017.1 1014.9 1014.4 1018.0 1025.6 1026.6 1029.0 1031.0 DAY 4 23 22 12 4 17 20 3 13 10 21 10 1999 1030.2 1023.6 1023.1 1019.3 1018.2 1014.5 1012.3 1016.8 1018.2 1023.5 1026.0 1030.9 1030.9 DAY 2 12 19 11 28 17 28 20 29 27 30 6 2000 1026.9 1027.6 1022.1 1018.7 1014.9 1015.3 1017.1 1014.3 1018.0 1024.3 1030.8 1026.3 1030.8 DAY 31 11 1 2 7 14 31 21 30 16 17 4 2001 1026.1 1027.1 1024.1 1021.9 1014.9 1014.9 1013.1 1015.5 1020.4 1024.7 1025.3 1025.8 1027.1 DAY 30 10 2 2 23 2 28 12 22 10 20 23 2002 1028.0 1027.9 1029.4 1020.8 1016.0 1016.0 1014.7 1012.6 1018.3 1021.6 1029.7 1029.1 1029.7 DAY 26 6 11 1 17 25 30 30 23 11 18 4 2003 1024.7 1022.1 1026.9 1021.2 1022.4 1014.1 1009.8 1013.7 1021.6 1022.0 1031.5 1033.5 1033.5 DAY 12 13 3 8 2 7 3 4 27 16 26 12 2004 1025.5 1023.1 1025.5 1020.5 1018.5 1017.2 1013.6 1012.3 1021.7 1025.4 1025.5 1031.8 1031.8 DAY 1 10 9 11 4 6 18 30 30 27 29 4 2005 1025.8 1026.3 1020.5 1026.6 1019.7 1013.8 1012.5 1013.8 1014.5 1025.6 1025.6 1030.3 1030.3 DAY 9 16 27 6 19 9 29 15 22 24 14 29 1986-2005 1030.8 1031.0 1029.4 1026.6 1022.4 1019.3 1017.1 1018.6 1024.6 1027.8 1034.0 1033.8 1034.0 YEAR-DAY 92- 5 98-23 2-11 5- 6 3- 2 93-23 0-31 92-31 94-23 90-16 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 60 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QNH PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1010.2 1008.4 1002.6 1004.5 1007.4 1012.8 1014.0 1010.0 1012.1 ****** DAY ** ** ** 11 3 17 20 5 6 1 8 28 1987 1011.9 1012.0 1000.6 1007.7 1008.2 1005.8 1003.8 1004.7 1010.1 1010.4 1012.5 1008.4 1000.6 DAY 3 10 14 5 23 10 3 25 6 4 7 24 1988 1008.5 1007.1 1002.5 1006.8 1006.4 1002.5 1001.4 1003.1 1006.6 1010.7 1011.6 1003.5 1001.4 DAY 29 2 5 25 28 24 17 30 12 31 20 27 1989 1011.6 1010.0 1003.8 1009.7 1008.9 1003.0 1002.1 1001.4 1006.2 1010.6 1013.6 1009.3 1001.4 DAY 12 23 29 29 31 10 6 2 12 2 20 5 1990 1011.1 1005.2 1012.3 1006.2 1004.2 1000.6 1003.2 1003.6 1007.3 1010.1 1010.7 1012.8 1000.6 DAY 23 16 25 16 13 27 5 8 6 1 1 25 1991 1008.4 1009.5 1004.3 1006.0 ****** 1000.1 998.4 1003.1 1006.2 1015.4 1013.3 1010.5 ****** DAY 26 21 7 10 ** 12 14 12 8 15 5 2 1992 1008.7 1007.2 1004.4 1003.0 1009.7 1001.6 1002.3 1002.4 1009.5 1013.2 1007.2 1015.2 1001.6 DAY 3 25 31 18 10 27 20 1 18 6 26 28 1993 1010.1 1009.7 1008.4 1009.5 1009.2 1005.1 1001.9 1004.3 1007.3 1013.8 1007.3 1014.1 1001.9 DAY 9 3 22 13 6 16 12 12 3 2 11 5 1994 1008.4 1008.4 1005.5 1008.3 1008.6 1002.1 999.7 1000.3 1008.6 1014.9 1005.6 1003.2 999.7 DAY 16 1 12 2 3 22 31 2 1 15 26 4 1995 1014.0 1007.4 1004.7 1008.8 1011.7 1002.3 999.1 1003.2 1006.1 1011.7 1012.8 1018.0 999.1 DAY 17 5 26 18 7 22 17 23 20 12 25 4 1996 1015.3 1007.5 1007.4 1008.1 1008.7 1005.1 1002.2 1004.0 1004.8 1009.5 1016.3 1015.3 1002.2 DAY 7 11 26 10 25 19 7 8 22 27 29 25 1997 1007.7 1011.5 1004.9 1005.7 1007.6 1003.6 998.2 1002.4 1007.4 1011.7 1016.2 1009.5 998.2 DAY 17 27 25 10 5 30 16 6 3 7 19 10 1998 1004.9 1004.7 1004.0 1006.4 1006.9 1006.2 999.7 1006.2 1006.7 1010.2 1013.8 1015.3 999.7 DAY 13 8 30 22 21 29 8 22 5 1 11 21 1999 1013.0 1004.9 1008.2 1007.6 1005.7 998.9 1002.0 1004.9 1005.1 1014.5 1011.7 1014.7 998.9 DAY 10 21 22 14 20 25 23 14 16 19 26 16 2000 1009.5 1005.9 1007.1 1009.9 1004.8 1002.5 1001.5 1001.9 1003.0 1012.9 1016.2 1012.4 1001.5 DAY 21 7 25 21 20 24 12 31 1 1 22 15 2001 1017.0 1005.4 1002.6 1007.6 1003.0 1000.5 1000.0 1004.3 1007.0 1012.0 1007.2 1015.2 1000.0 DAY 4 21 25 9 30 18 11 24 5 1 18 5 2002 1009.5 1009.6 1007.5 1004.3 1006.2 1001.9 1003.1 1001.6 1008.3 1012.4 1012.4 1008.5 1001.6 DAY 8 27 27 4 20 20 25 18 11 22 12 22 2003 1006.7 1006.7 1005.6 1008.3 1008.1 1000.5 1000.1 1004.2 1006.7 1011.5 1013.8 1013.6 1000.1 DAY 29 19 13 28 8 30 31 1 7 27 14 7 2004 1009.5 1008.2 1009.3 1003.5 1000.9 1004.6 1004.0 1002.4 1009.4 1013.3 1009.6 1012.9 1000.9 DAY 24 15 31 17 13 18 11 4 11 22 23 16 2005 1006.2 1008.0 1006.2 1009.5 1004.6 1002.3 999.1 1002.0 1006.7 1011.2 1013.7 1009.2 999.1 DAY 23 2 24 4 6 20 6 8 5 20 6 24 1986-2005 1004.9 1004.7 1000.6 1003.0 1000.9 998.9 998.2 1000.3 1003.0 1009.5 1005.6 1003.2 998.2 YEAR-DAY 98-13 98- 8 87-14 92-18 4-13 99-25 97-16 94- 2 0- 1 96-27 94-26 94- 4 97-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 61 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1012.2 1009.4 1001.5 1002.4 1005.5 1011.6 1015.8 1019.9 1023.5 ****** 1987 1022.8 1019.9 1012.2 1012.7 1009.4 1003.5 1002.4 1002.3 1008.8 1019.4 1021.1 1022.1 1013.1 1988 1021.8 1019.2 1011.8 1012.3 1007.5 1002.3 998.6 1000.6 1007.6 1015.7 1019.1 1019.8 1011.4 1989 1023.2 1025.0 1013.7 1013.0 1009.5 1001.7 1000.9 1001.7 1006.9 1014.8 1019.4 1019.3 1012.4 1990 1022.5 1018.1 1018.7 1010.3 1006.8 1001.3 999.6 1000.9 1005.4 1015.4 1019.3 1022.1 1011.7 1991 1022.1 1021.7 1015.3 1011.5 ****** 1002.8 998.3 1001.2 1008.9 1016.0 1020.7 1020.7 ****** 1992 1022.7 1017.2 1018.2 1010.6 1011.5 1003.3 999.2 1004.6 1010.5 1015.3 1019.4 1021.1 1012.8 1993 1024.3 1020.0 1016.6 1011.3 1009.4 1003.2 1001.8 1003.9 1007.3 1019.5 1020.3 1023.7 1013.4 1994 1020.9 1017.6 1014.2 1012.9 1008.9 1000.4 997.5 999.1 1012.7 1017.9 1017.2 1024.1 1011.9 1995 1022.3 1018.3 1014.9 1011.4 1011.3 1003.5 996.1 999.9 1007.3 1015.9 1018.3 1025.2 1012.0 1996 1024.7 1017.6 1015.0 1013.1 1009.7 1002.9 1003.0 1003.1 1005.1 1015.6 1023.7 1023.2 1013.0 1997 1019.5 1020.0 1013.5 1010.3 1010.7 1002.5 996.5 1000.7 1008.7 1013.8 1020.8 1021.2 1011.5 1998 1020.4 1019.6 1014.9 1011.3 1009.7 1004.7 999.5 1003.3 1007.2 1015.6 1018.9 1023.7 1012.4 1999 1022.5 1017.0 1014.4 1012.0 1007.4 1001.3 1000.3 1002.4 1006.2 1013.6 1019.9 1026.1 1011.9 2000 1020.9 1019.8 1015.2 1010.2 1005.2 1001.9 1001.4 1002.7 1005.9 1016.2 1022.3 1022.4 1012.0 2001 1024.0 1019.4 1014.1 1009.8 1005.9 1001.1 999.9 1003.1 1007.8 1014.1 1018.7 1022.7 1011.7 2002 1022.5 1019.3 1014.8 1010.4 1007.3 1002.4 1000.9 999.2 1006.8 1012.8 1020.0 1021.7 1011.5 2003 1020.4 1015.7 1014.8 1011.4 1010.3 1001.4 995.1 1002.0 1007.6 1012.2 1020.9 1024.3 1011.3 2004 1018.1 1017.3 1015.8 1011.1 1006.8 1001.6 1001.0 999.7 1008.9 1016.3 1017.7 1022.3 1011.4 2005 1021.0 1019.1 1012.8 1013.2 1008.5 1001.7 998.1 1001.0 1005.4 1014.7 1020.4 1021.7 1011.5 MEAN 1021.9 1019.0 1014.8 1011.6 1008.7 1002.2 999.6 1001.8 1007.8 1015.5 1019.9 1022.5 1012.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 62 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1021.2 1015.4 1009.8 1006.7 1009.4 1016.2 1022.3 1028.5 1037.4 ****** DAY ** ** ** 6 19 3 22 31 22 15 16 7 1987 1031.5 1028.7 1022.5 1019.6 1015.2 1009.1 1010.2 1009.8 1016.1 1029.0 1037.4 1037.2 1037.4 DAY 12 7 23 22 1 1 29 7 25 29 30 1 1988 1033.0 1033.2 1022.5 1024.8 1014.5 1007.7 1004.8 1006.3 1014.7 1024.7 1027.7 1032.1 1033.2 DAY 3 7 17 9 6 1 27 26 26 17 16 30 1989 1038.0 1034.8 1019.9 1021.0 1016.3 1005.9 1006.5 1008.0 1021.0 1024.6 1025.2 1025.9 1038.0 DAY 31 4 3 2 1 4 23 20 24 25 23 19 1990 1034.7 1028.6 1030.9 1015.8 1014.6 1011.4 1003.8 1006.5 1011.0 1026.4 1029.6 1035.9 1035.9 DAY 26 8 21 3 15 1 9 30 28 16 23 28 1991 1031.4 1035.0 1023.7 1018.6 ****** 1008.6 1004.3 1005.8 1018.1 1021.2 1027.6 1029.5 ****** DAY 13 15 12 15 ** 23 12 23 28 17 27 17 1992 1036.7 1027.5 1032.5 1018.4 1021.1 1009.5 1005.0 1014.4 1016.5 1022.1 1027.0 1030.1 1036.7 DAY 5 16 12 8 3 7 14 31 2 30 4 29 1993 1032.6 1026.9 1024.3 1018.9 1019.7 1014.7 1007.7 1007.8 1013.8 1025.4 1028.8 1030.7 1032.6 DAY 7 10 23 1 9 23 27 29 16 9 30 7 1994 1031.4 1030.9 1021.1 1026.8 1015.5 1005.3 1004.0 1003.4 1021.8 1025.9 1023.2 1036.7 1036.7 DAY 10 19 18 6 18 6 2 16 23 24 10 8 1995 1029.4 1024.5 1024.9 1018.5 1016.6 1014.1 1002.0 1004.9 1017.2 1026.5 1027.4 1030.2 1030.2 DAY 8 14 3 7 29 1 4 11 22 27 28 11 1996 1032.8 1023.7 1021.7 1025.1 1014.7 1009.5 1008.1 1012.3 1015.2 1024.7 1037.3 1032.3 1037.3 DAY 26 4 29 5 8 27 4 30 25 19 19 4 1997 1027.5 1030.3 1026.7 1020.1 1017.1 1007.3 1002.0 1006.2 1015.2 1019.7 1030.9 1031.9 1031.9 DAY 20 8 11 12 7 1 8 29 15 9 8 29 1998 1028.3 1033.5 1022.1 1021.4 1019.2 1011.0 1008.0 1007.9 1012.9 1026.1 1026.2 1030.1 1033.5 DAY 4 23 4 7 3 17 20 3 13 11 25 10 1999 1033.1 1024.9 1025.1 1018.8 1012.2 1008.7 1006.7 1009.8 1015.6 1023.2 1028.7 1033.7 1033.7 DAY 2 12 19 11 23 17 28 20 28 27 30 1 2000 1030.7 1030.5 1023.7 1017.0 1009.7 1011.2 1011.1 1008.3 1014.1 1024.1 1032.4 1028.2 1032.4 DAY 31 11 1 2 3 14 31 21 30 16 17 5 2001 1031.6 1029.5 1025.8 1018.1 1010.7 1011.3 1006.3 1009.2 1017.6 1022.8 1028.3 1028.4 1031.6 DAY 30 10 12 2 6 13 28 12 22 28 20 23 2002 1031.3 1029.2 1030.4 1020.7 1012.3 1010.3 1007.1 1005.8 1013.0 1017.1 1029.9 1031.9 1031.9 DAY 26 6 11 1 14 25 30 31 30 23 18 5 2003 1027.2 1023.5 1029.6 1017.1 1019.5 1009.3 1001.7 1006.0 1017.4 1017.6 1033.4 1035.8 1035.8 DAY 23 13 3 19 2 7 3 31 27 15 25 12 2004 1028.1 1022.3 1023.3 1017.7 1013.6 1010.6 1006.1 1005.1 1017.7 1022.5 1027.6 1034.5 1034.5 DAY 1 8 17 11 4 6 18 30 30 27 30 4 2005 1028.6 1029.1 1021.7 1025.9 1014.4 1007.7 1004.5 1006.4 1007.8 1023.7 1025.9 1033.2 1033.2 DAY 14 16 27 6 19 9 29 13 22 24 29 29 1986-2005 1038.0 1035.0 1032.5 1026.8 1021.1 1014.7 1011.1 1014.4 1021.8 1029.0 1037.4 1037.4 1038.0 YEAR-DAY 89-31 91-15 92-12 94- 6 92- 3 93-23 0-31 92-31 94-23 87-29 87-30 86- 7 89-31 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 63 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFF PRESSURE IN HPA AT 0000 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1007.5 1002.9 996.2 996.5 1000.9 1007.7 1010.1 1008.7 1013.2 ****** DAY ** ** ** 29 31 17 21 5 26 1 8 30 1987 1013.3 1012.4 1000.2 1006.4 1002.7 999.0 996.0 998.2 1003.9 1006.4 1011.0 1009.1 996.0 DAY 27 5 14 19 23 18 21 26 6 4 7 24 1988 1009.4 1006.3 1001.3 1001.9 1000.8 996.1 993.7 995.1 1000.5 1007.7 1011.0 1006.5 993.7 DAY 29 2 21 25 28 30 17 30 12 31 11 27 1989 1013.9 1011.3 1003.3 1004.9 1003.3 996.0 994.6 993.9 1000.1 1005.7 1013.4 1010.2 993.9 DAY 3 23 28 29 31 30 6 2 12 2 20 5 1990 1013.0 1007.7 1011.0 1003.0 1000.1 992.5 995.1 996.8 1001.1 1006.0 1007.8 1014.2 992.5 DAY 2 16 25 16 12 27 28 9 6 1 1 19 1991 1010.2 1009.3 1005.4 1003.7 ****** 993.5 992.1 996.6 999.4 1012.3 1010.4 1011.7 ****** DAY 26 21 7 10 ** 12 14 6 8 5 5 2 1992 1011.9 1007.6 1006.3 999.8 1006.1 994.8 994.5 994.8 1004.5 1009.1 1005.8 1017.3 994.5 DAY 3 25 30 18 19 27 19 1 18 6 26 28 1993 1015.1 1011.4 1008.4 1005.6 1004.5 998.4 994.5 997.1 1000.3 1008.9 1005.9 1017.2 994.5 DAY 9 4 22 21 20 16 12 12 3 2 11 5 1994 1009.8 1008.2 1005.9 1004.1 1004.5 995.3 991.2 991.9 1002.5 1010.7 1005.7 1004.2 991.2 DAY 16 1 12 26 13 22 31 1 1 15 26 4 1995 1015.7 1006.1 1001.5 1006.0 1006.6 994.7 991.0 995.4 1000.0 1006.4 1012.2 1020.2 991.0 DAY 17 5 26 19 7 22 16 23 20 5 11 4 1996 1017.1 1007.5 1006.1 1005.1 1002.9 995.6 994.4 996.9 999.3 1006.3 1016.2 1015.1 994.4 DAY 5 11 26 13 25 19 7 8 22 27 7 25 1997 1009.0 1010.6 1002.1 1001.9 1003.6 996.8 989.7 994.8 1000.0 1006.4 1015.9 1011.0 989.7 DAY 17 22 25 10 5 30 16 6 3 7 19 10 1998 1008.0 1004.0 1002.6 1003.8 1002.0 998.3 991.9 998.7 1000.1 1005.0 1011.5 1016.8 991.9 DAY 13 8 30 18 21 29 8 22 5 1 11 21 1999 1014.6 1005.5 1007.7 1004.4 999.4 992.1 994.4 996.8 998.6 1009.9 1010.5 1015.5 992.1 DAY 1 21 22 14 20 25 23 14 16 13 1 16 2000 1011.6 1007.4 1004.7 1004.6 998.6 995.4 992.8 995.0 996.4 1010.0 1016.4 1014.2 992.8 DAY 21 7 25 21 20 24 12 31 1 1 1 15 2001 1018.7 1006.0 999.0 1003.0 996.5 993.8 992.0 997.2 1000.4 1006.6 1005.7 1016.8 992.0 DAY 4 21 25 26 30 18 11 24 5 1 18 5 2002 1010.3 1007.3 1003.4 1004.2 1001.4 993.9 994.3 993.4 1002.3 1007.1 1008.6 1009.7 993.4 DAY 8 27 28 4 20 20 25 8 11 22 12 22 2003 1008.9 1008.3 1004.0 1003.7 1002.1 992.3 991.2 995.5 1000.0 1005.5 1011.0 1014.8 991.2 DAY 29 19 21 28 8 30 31 1 7 27 14 7 2004 1009.8 1004.6 1003.7 998.8 995.4 995.9 996.8 994.5 1001.2 1008.3 1008.1 1014.4 994.5 DAY 24 15 31 17 13 18 11 12 12 22 23 16 2005 1008.7 1007.1 1004.0 1004.0 1000.7 994.5 989.9 993.0 999.4 1006.0 1011.4 1009.4 989.9 DAY 23 2 24 27 6 21 6 8 5 21 6 24 1986-2005 1008.0 1004.0 999.0 998.8 995.4 992.1 989.7 991.9 996.4 1005.0 1005.7 1004.2 989.7 YEAR-DAY 98-13 98- 8 1-25 4-17 4-13 99-25 97-16 94- 1 0- 1 98- 1 94-26 94- 4 97-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 64 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1011.1 1008.4 1000.4 1001.3 1004.4 1010.6 1014.7 1018.9 1022.5 ****** 1987 1021.9 1019.1 1011.1 1011.7 1008.3 1002.5 1001.3 1001.3 1007.9 1018.4 1020.1 1021.1 1012.1 1988 1020.6 1018.2 1010.9 1011.2 1006.6 1001.4 997.5 999.5 1006.6 1014.7 1018.1 1018.9 1010.3 1989 1022.2 1024.1 1012.6 1012.2 1008.6 1000.8 999.8 1000.7 1006.0 1013.9 1018.3 1018.3 1011.4 1990 1021.5 1017.0 1017.6 1009.4 1005.9 1000.4 998.6 999.9 1004.5 1014.5 1018.3 1021.0 1010.7 1991 1021.1 1020.8 1014.2 1010.6 ****** 1001.7 997.3 1000.2 1008.0 1015.1 1019.8 1019.7 ****** 1992 1021.9 1016.3 1017.1 1009.7 1010.4 1002.2 998.2 1003.5 1009.6 1014.4 1018.4 1020.1 1011.8 1993 1023.4 1018.9 1015.6 1010.4 1008.4 1002.3 1000.8 1002.8 1006.4 1018.6 1019.3 1022.8 1012.5 1994 1019.7 1016.6 1013.2 1011.9 1007.9 999.5 996.3 998.2 1011.6 1016.8 1016.1 1023.2 1010.9 1995 1021.3 1017.4 1014.0 1010.3 1010.3 1002.5 994.9 998.9 1006.4 1015.0 1017.5 1024.2 1011.1 1996 1023.9 1016.6 1013.9 1012.1 1008.5 1002.0 1001.9 1001.9 1004.1 1014.7 1022.7 1022.1 1012.0 1997 1018.7 1019.1 1012.5 1009.4 1009.6 1001.4 995.5 999.7 1007.8 1012.8 1019.8 1020.1 1010.5 1998 1019.5 1018.7 1013.9 1010.5 1008.6 1003.6 998.3 1002.1 1006.3 1014.6 1018.1 1022.8 1011.4 1999 1021.6 1016.0 1013.5 1011.2 1006.7 1000.5 999.3 1001.4 1005.4 1012.7 1018.9 1025.2 1011.0 2000 1019.9 1018.9 1014.4 1009.3 1004.3 1001.1 1000.4 1001.6 1004.9 1015.2 1021.3 1021.3 1011.1 2001 1023.2 1018.4 1013.1 1008.8 1005.0 1000.1 998.8 1002.0 1006.9 1013.1 1017.9 1021.7 1010.8 2002 1021.5 1018.4 1013.9 1009.4 1006.3 1001.8 1000.4 999.1 1006.8 1012.7 1019.9 1021.7 1011.0 2003 1020.4 1015.6 1014.7 1011.4 1010.3 1001.3 995.1 1002.0 1007.5 1012.2 1020.7 1024.1 1011.3 2004 1018.0 1017.2 1015.8 1011.1 1006.8 1001.6 1001.0 999.7 1008.9 1016.2 1017.7 1022.3 1011.4 2005 1020.8 1019.1 1012.9 1013.2 1008.5 1001.7 998.1 1001.0 1005.4 1014.7 1020.4 1021.7 1011.4 MEAN 1021.1 1018.2 1013.9 1010.7 1007.9 1001.4 998.7 1001.0 1007.1 1014.7 1019.1 1021.7 1011.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 65 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1019.9 1014.3 1008.8 1005.5 1008.4 1015.1 1021.3 1027.5 1036.4 ****** DAY ** ** ** 6 19 3 22 31 22 15 16 7 1987 1030.9 1027.8 1021.6 1018.4 1014.2 1008.0 1008.9 1008.6 1015.2 1027.8 1036.5 1036.4 1036.5 DAY 12 7 23 1 1 1 29 8 25 29 30 1 1988 1032.1 1032.4 1021.5 1024.1 1013.1 1006.7 1003.6 1005.1 1013.7 1023.6 1027.0 1031.3 1032.4 DAY 3 7 17 9 6 1 27 26 26 17 16 30 1989 1032.8 1034.0 1018.7 1020.0 1015.6 1005.0 1005.6 1007.1 1020.1 1023.6 1024.3 1024.9 1034.0 DAY 31 4 1 2 1 4 23 20 24 25 23 19 1990 1032.7 1027.8 1030.0 1014.5 1013.5 1010.4 1002.8 1005.4 1010.1 1025.4 1028.6 1035.2 1035.2 DAY 26 8 21 25 15 1 9 30 28 19 23 28 1991 1030.4 1034.2 1022.8 1018.5 ****** 1007.6 1003.2 1004.9 1017.2 1019.8 1026.8 1029.6 ****** DAY 13 15 12 14 ** 23 12 23 28 17 27 18 1992 1035.4 1026.7 1031.9 1017.4 1019.7 1008.5 1003.8 1013.2 1015.6 1021.3 1026.6 1029.5 1035.4 DAY 5 16 12 8 3 7 14 31 2 30 4 29 1993 1031.5 1025.9 1023.4 1017.9 1018.7 1013.7 1006.6 1006.7 1012.9 1024.5 1027.9 1029.9 1031.5 DAY 7 10 23 1 9 23 27 25 23 9 30 7 1994 1030.5 1030.3 1020.0 1025.9 1014.5 1005.4 1003.0 1002.2 1021.1 1024.4 1022.1 1034.9 1034.9 DAY 10 19 18 6 18 9 2 16 23 24 10 8 1995 1028.0 1023.7 1024.1 1017.7 1015.3 1012.9 1000.8 1004.2 1016.2 1025.6 1027.7 1029.2 1029.2 DAY 8 14 3 7 29 1 4 25 22 27 28 11 1996 1031.9 1022.8 1019.8 1024.1 1013.6 1009.3 1006.8 1011.0 1014.2 1023.8 1035.5 1031.5 1035.5 DAY 26 4 29 5 8 12 4 30 25 19 19 4 1997 1026.8 1029.6 1025.8 1019.2 1016.3 1006.1 1001.2 1005.5 1014.3 1018.8 1029.9 1031.1 1031.1 DAY 20 8 11 12 7 1 8 29 15 9 8 29 1998 1027.4 1032.7 1021.2 1020.5 1018.0 1010.0 1007.0 1006.3 1012.9 1023.0 1025.3 1029.1 1032.7 DAY 4 23 4 7 3 17 20 3 13 11 25 10 1999 1032.3 1024.0 1024.3 1018.0 1011.4 1007.7 1005.7 1008.6 1014.6 1022.2 1027.8 1032.8 1032.8 DAY 3 12 19 11 23 17 28 20 28 27 30 1 2000 1028.8 1029.7 1022.8 1016.1 1008.9 1010.5 1009.9 1007.4 1013.1 1022.9 1031.7 1027.0 1031.7 DAY 31 11 1 2 3 14 31 21 30 16 17 4 2001 1031.5 1028.5 1024.7 1017.2 1009.5 1010.1 1005.3 1008.0 1016.5 1021.8 1027.6 1027.5 1031.5 DAY 30 10 12 2 6 13 28 12 22 28 20 23 2002 1030.5 1028.3 1029.5 1019.8 1011.5 1009.2 1007.0 1005.2 1013.0 1016.5 1029.9 1031.8 1031.8 DAY 26 6 11 1 14 25 30 30 30 11 18 5 2003 1027.2 1023.5 1029.6 1017.1 1019.3 1009.3 1001.7 1006.0 1017.4 1017.6 1033.2 1035.5 1035.5 DAY 23 13 3 19 2 7 3 31 27 15 26 12 2004 1028.0 1022.3 1023.3 1017.6 1013.6 1010.6 1006.1 1005.0 1017.7 1022.5 1027.3 1034.5 1034.5 DAY 1 10 17 11 4 6 18 30 30 27 29 4 2005 1028.6 1029.1 1021.7 1025.9 1014.4 1007.7 1004.4 1006.0 1007.8 1023.7 1025.8 1033.1 1033.1 DAY 14 16 27 6 19 9 29 18 30 24 29 29 1986-2005 1035.4 1034.2 1031.9 1025.9 1019.7 1013.7 1009.9 1013.2 1021.1 1027.8 1036.5 1036.4 1036.5 YEAR-DAY 92- 5 91-15 92-12 94- 6 92- 3 93-23 0-31 92-31 94-23 87-29 87-30 86- 7 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 66 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1006.5 1001.8 994.8 995.4 999.7 1006.8 1009.1 1007.7 1013.2 ****** DAY ** ** ** 29 31 29 21 5 26 1 8 3 1987 1011.8 1011.4 999.2 1005.3 1001.9 998.2 995.2 997.3 1003.0 1005.5 1009.9 1007.9 995.2 DAY 27 5 14 19 23 18 21 26 6 4 7 24 1988 1008.3 1005.4 1000.5 1000.9 1000.0 995.0 992.6 994.2 999.7 1006.9 1010.1 1005.7 992.6 DAY 29 2 21 25 28 30 17 30 12 31 11 27 1989 1012.9 1010.4 1002.4 1004.0 1002.4 995.1 993.6 993.1 999.4 1004.9 1012.1 1008.9 993.1 DAY 3 23 28 29 31 30 2 2 12 2 20 5 1990 1011.9 1004.6 1009.9 1002.3 998.7 991.7 994.1 995.7 1000.3 1005.1 1006.8 1013.3 991.7 DAY 2 16 25 29 12 27 28 20 5 1 1 19 1991 1009.2 1008.2 1004.2 1002.7 ****** 992.3 990.6 995.8 998.6 1011.4 1010.0 1010.7 ****** DAY 26 21 7 10 ** 12 14 6 8 5 5 2 1992 1010.2 1006.6 1002.6 998.9 1005.0 993.7 993.6 994.0 1003.7 1008.2 1005.0 1016.5 993.6 DAY 3 25 31 18 19 27 19 1 18 6 26 28 1993 1014.1 1010.4 1007.8 1004.7 1003.6 997.4 993.7 996.3 999.4 1008.1 1004.9 1016.3 993.7 DAY 31 4 22 21 20 16 12 12 3 2 11 5 1994 1008.8 1007.1 1004.7 1003.2 1003.5 994.3 990.2 991.0 1000.7 1009.7 1004.6 1002.7 990.2 DAY 16 1 12 26 29 22 31 1 1 15 26 4 1995 1014.7 1005.3 1000.7 1004.8 1005.6 993.5 989.7 994.5 999.3 1005.7 1011.4 1019.3 989.7 DAY 17 5 26 19 7 22 17 23 20 5 11 4 1996 1016.1 1006.2 1005.2 1003.9 1001.7 997.5 993.6 996.1 998.7 1005.5 1015.1 1014.2 993.6 DAY 5 11 26 13 29 5 7 8 22 27 7 25 1997 1008.2 1009.8 1001.3 1001.1 1002.7 995.8 988.9 993.8 999.4 1005.3 1014.9 1010.0 988.9 DAY 17 22 25 10 5 30 16 15 3 7 19 10 1998 1007.0 1002.9 1001.4 1002.9 1000.8 997.4 990.9 997.6 999.0 1004.0 1010.8 1015.6 990.9 DAY 13 8 30 22 21 29 8 22 5 1 11 21 1999 1013.6 1004.3 1006.6 1003.4 998.7 991.3 993.6 996.0 997.7 1009.1 1009.5 1014.4 991.3 DAY 1 21 22 14 20 25 23 14 16 13 1 16 2000 1010.6 1006.6 1004.0 1003.8 998.0 994.6 991.8 994.1 995.5 1008.9 1015.3 1013.2 991.8 DAY 21 7 25 21 20 24 12 31 1 1 22 15 2001 1017.7 1005.2 998.3 1002.2 995.7 993.0 991.0 996.4 999.8 1005.9 1004.8 1015.8 991.0 DAY 4 21 25 26 30 18 11 24 5 1 18 5 2002 1009.2 1006.5 1002.7 1003.3 999.6 993.8 994.3 993.3 1002.3 1007.1 1008.6 1009.7 993.3 DAY 8 27 28 4 20 20 25 8 11 22 12 22 2003 1008.8 1008.3 1004.0 1003.7 1002.1 992.2 991.2 995.4 1000.0 1005.9 1011.0 1013.7 991.2 DAY 29 19 21 28 8 30 31 1 7 27 14 7 2004 1009.9 1004.6 1003.7 998.8 995.4 995.9 996.8 994.4 1001.2 1008.7 1008.1 1014.3 994.4 DAY 24 15 31 17 13 18 11 12 12 22 23 16 2005 1008.6 1007.0 1004.0 1004.0 1000.7 994.5 990.0 993.0 999.4 1006.0 1011.3 1009.3 990.0 DAY 23 2 24 27 6 21 6 8 5 21 6 24 1986-2005 1007.0 1002.9 998.3 998.8 995.4 991.3 988.9 991.0 995.5 1004.0 1004.6 1002.7 988.9 YEAR-DAY 98-13 98- 8 1-25 4-17 4-13 99-25 97-16 94- 1 0- 1 98- 1 94-26 94- 4 97-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 67 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFE PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 916.7 914.7 913.5 908.5 910.4 912.3 916.4 918.4 918.8 919.6 ****** 1987 919.9 918.2 912.2 915.1 914.4 911.1 910.3 910.2 914.3 920.1 920.6 919.2 915.5 1988 917.9 916.8 912.5 914.5 912.7 909.3 907.2 908.9 913.4 917.9 918.5 917.2 913.9 1989 918.2 920.0 913.7 915.8 914.2 909.4 909.3 909.7 912.7 917.8 919.1 917.2 914.8 1990 918.2 915.3 918.0 912.9 912.2 909.1 908.2 909.4 911.7 917.9 919.1 918.9 914.2 1991 918.2 918.4 914.6 914.3 911.0 909.8 907.2 908.8 914.2 918.2 919.9 917.3 914.3 1992 917.8 914.5 915.9 912.7 914.3 909.5 907.8 911.6 915.0 917.4 918.9 917.9 914.4 1993 918.9 917.0 915.8 913.6 913.5 910.3 909.8 911.4 913.1 920.8 918.6 920.7 915.3 1994 918.0 915.1 914.6 915.3 913.3 907.9 905.9 907.5 916.9 919.6 916.8 920.0 914.2 1995 919.2 916.5 915.1 913.5 915.0 909.7 905.0 908.2 912.6 917.7 917.9 921.0 914.3 1996 920.0 915.4 913.7 914.8 914.0 910.0 910.6 910.5 911.3 917.7 922.1 920.5 915.0 1997 916.8 917.5 912.8 912.9 914.8 909.9 905.7 909.2 914.3 916.9 919.8 918.1 914.1 1998 916.7 916.7 914.8 914.1 914.2 912.2 908.0 911.2 913.1 917.9 919.3 921.3 914.9 1999 918.8 915.7 914.3 914.6 913.0 909.3 908.2 910.4 912.1 916.7 918.7 922.7 914.5 2000 917.2 917.2 915.1 913.8 911.0 909.2 909.7 910.5 912.0 917.9 920.8 919.0 914.5 2001 920.0 917.1 915.1 913.3 911.2 908.5 908.3 911.0 913.7 917.0 918.4 920.1 914.5 2002 918.9 917.7 915.5 912.2 912.0 910.0 909.6 908.4 913.9 917.1 920.1 918.7 914.5 2003 918.1 914.6 915.0 914.5 915.1 909.5 905.5 911.1 913.8 916.6 920.3 921.3 914.6 2004 916.1 916.8 917.4 914.2 912.1 910.2 910.0 909.2 915.5 919.6 918.3 919.5 914.9 2005 918.1 916.8 914.3 916.5 913.9 910.0 908.0 909.8 912.4 918.3 920.1 920.3 914.9 MEAN 918.3 916.7 914.9 914.2 913.3 909.7 908.2 910.0 913.6 918.1 919.3 919.5 914.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 68 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFE PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 923.2 919.9 919.2 915.5 914.3 915.2 920.5 924.8 925.5 930.9 ****** DAY ** ** 17 5 18 2 15 31 22 15 16 7 1987 928.3 924.9 920.7 922.5 920.8 915.8 914.4 917.1 919.5 926.1 931.8 931.7 931.8 DAY 12 7 23 22 1 28 11 8 26 29 30 1 1988 927.5 927.7 921.7 924.3 919.1 913.9 912.6 913.2 918.6 923.6 924.2 925.4 927.7 DAY 3 7 17 9 17 8 31 21 14 17 6 30 1989 925.3 927.0 919.0 920.9 919.5 912.5 913.8 915.0 922.6 924.1 923.3 921.2 927.0 DAY 27 4 8 2 1 2 20 20 23 25 8 18 1990 927.0 924.3 926.0 918.2 918.0 915.7 912.0 912.7 915.5 926.4 927.3 928.4 928.4 DAY 26 8 10 25 16 1 9 29 28 16 23 28 1991 926.0 928.9 920.3 919.7 918.4 915.0 911.1 912.5 920.4 922.0 924.5 925.4 928.9 DAY 13 15 12 14 25 23 12 23 27 13 24 17 1992 928.1 923.1 926.9 917.2 919.4 914.9 911.6 918.8 919.0 922.4 926.2 923.2 928.1 DAY 10 16 12 20 2 11 14 31 1 30 4 29 1993 926.6 923.5 921.8 919.7 920.4 919.6 915.0 915.0 919.1 926.0 925.0 925.8 926.6 DAY 6 9 23 1 9 23 28 24 16 17 21 26 1994 927.2 923.1 919.9 925.2 918.1 913.2 910.9 911.5 924.1 924.4 922.9 927.8 927.8 DAY 10 19 17 5 18 9 2 16 23 9 2 8 1995 925.5 921.1 923.7 918.5 919.2 915.9 909.2 912.8 919.6 925.9 924.1 925.3 925.9 DAY 7 13 3 7 26 1 4 25 22 26 28 11 1996 927.0 921.2 918.5 922.0 918.3 914.8 915.5 918.0 919.0 925.3 931.6 927.1 931.6 DAY 26 24 29 5 7 12 4 30 25 2 19 4 1997 924.1 923.0 925.0 919.0 920.4 914.0 909.8 912.6 919.2 921.5 929.2 926.3 929.2 DAY 19 8 11 13 12 8 9 25 15 9 8 29 1998 924.6 929.6 920.2 922.8 920.6 917.5 915.7 915.1 917.8 925.4 925.8 927.3 929.6 DAY 4 23 27 12 4 17 20 25 13 10 21 10 1999 929.8 922.5 921.8 919.0 918.0 914.7 912.7 916.5 918.0 921.8 926.4 928.9 929.8 DAY 2 12 19 11 28 17 19 20 29 27 30 6 2000 924.7 925.0 921.5 918.4 914.0 915.5 916.5 914.7 916.9 923.1 930.2 925.3 930.2 DAY 31 11 27 2 5 14 31 23 26 16 17 4 2001 924.5 925.3 922.6 921.2 914.5 915.8 913.3 915.2 920.7 924.5 924.7 923.9 925.3 DAY 30 10 2 2 1 2 28 12 22 10 20 10 2002 926.0 926.8 929.3 920.4 916.3 916.2 915.1 913.3 918.1 921.3 928.1 927.3 929.3 DAY 26 6 11 1 14 25 30 31 23 11 18 3 2003 922.9 920.1 925.0 919.8 922.8 914.5 912.4 914.6 921.4 921.4 929.0 931.3 931.3 DAY 12 7 3 8 2 7 4 4 27 15 25 12 2004 923.2 921.8 925.3 919.8 917.0 918.1 914.8 913.7 921.2 924.7 924.2 929.5 929.5 DAY 1 10 9 11 18 6 18 30 30 27 29 4 2005 924.5 924.3 920.1 926.5 918.0 915.0 913.7 913.7 915.2 924.8 924.0 928.1 928.1 DAY 8 15 27 6 19 9 29 27 9 24 25 29 1986-2005 929.8 929.6 929.3 926.5 922.8 919.6 916.5 918.8 924.1 926.4 931.8 931.7 931.8 YEAR-DAY 99- 2 98-23 2-11 5- 6 3- 2 93-23 0-31 92-31 94-23 90-16 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 69 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFE PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 908.1 910.5 908.0 904.4 905.0 907.8 912.7 913.4 910.6 912.0 ****** DAY ** ** 8 11 3 25 20 15 6 1 8 1 1987 912.0 910.8 902.4 908.2 909.2 907.4 904.5 906.0 910.7 911.1 911.2 909.6 902.4 DAY 3 10 14 4 23 10 3 25 6 4 7 24 1988 907.9 906.2 904.0 906.5 907.4 903.4 902.8 904.1 907.8 911.5 911.7 900.8 900.8 DAY 29 2 5 25 1 30 8 30 12 31 20 27 1989 910.2 909.5 904.4 909.6 909.5 904.5 904.0 903.8 906.8 911.5 914.4 909.5 903.8 DAY 17 23 29 29 31 10 6 2 12 2 20 5 1990 910.0 906.3 912.7 907.4 905.1 901.6 904.4 905.4 907.2 911.1 910.1 909.6 901.6 DAY 23 16 25 16 13 27 2 8 5 1 1 25 1991 908.4 909.5 905.2 905.8 906.1 902.3 901.6 904.2 906.8 914.6 912.9 912.2 901.6 DAY 26 21 7 10 23 12 14 12 8 15 5 1 1992 908.9 908.0 903.5 904.6 909.7 902.8 904.2 904.8 910.0 913.8 908.4 914.7 902.8 DAY 3 21 31 18 10 27 10 1 18 6 25 27 1993 909.6 908.6 908.4 909.2 909.9 907.2 905.0 905.9 908.7 913.6 906.6 913.8 905.0 DAY 9 3 22 13 29 19 12 12 3 2 11 5 1994 907.4 906.5 905.0 907.9 908.7 903.2 901.4 901.6 909.7 914.8 908.0 904.5 901.4 DAY 16 1 12 2 1 22 31 2 1 2 26 4 1995 913.3 906.3 907.4 908.9 911.6 903.6 900.6 904.2 906.3 910.0 912.5 916.6 900.6 DAY 12 5 26 19 6 22 16 23 20 12 11 4 1996 914.0 908.0 907.6 907.2 909.4 905.3 903.6 905.5 905.1 909.0 915.5 914.0 903.6 DAY 5 2 13 13 29 19 7 8 22 27 29 25 1997 906.1 911.4 903.9 905.9 908.5 905.0 900.8 904.0 908.4 912.8 915.2 908.0 900.8 DAY 16 22 25 5 5 30 16 6 3 7 19 10 1998 905.4 904.8 905.4 907.4 907.0 907.0 901.0 907.2 908.0 910.2 914.3 913.9 901.0 DAY 13 8 15 22 30 29 8 17 3 1 11 21 1999 912.2 907.8 908.7 908.2 905.8 900.2 904.1 907.2 906.2 913.6 910.4 915.2 900.2 DAY 9 20 22 14 20 25 23 14 16 31 26 16 2000 907.9 905.3 908.5 910.0 906.3 903.5 902.0 903.7 904.0 913.4 915.3 911.2 902.0 DAY 21 7 24 10 20 24 11 31 1 1 22 15 2001 915.3 904.8 903.7 907.8 904.3 901.7 902.6 905.0 908.0 911.8 907.1 913.9 901.7 DAY 19 21 25 26 30 18 11 27 5 1 18 5 2002 909.0 909.6 907.4 904.6 907.0 903.3 905.0 902.7 909.2 913.0 911.7 909.2 902.7 DAY 8 27 27 4 20 20 24 17 11 22 12 21 2003 908.5 905.6 905.4 909.0 908.0 902.8 901.8 905.5 907.3 910.8 913.6 912.6 901.8 DAY 29 19 13 28 8 30 1 1 7 27 14 6 2004 909.2 907.1 908.0 905.0 902.3 905.3 905.6 904.7 910.1 912.8 907.9 912.3 902.3 DAY 27 15 31 17 13 18 10 4 11 22 23 16 2005 906.4 909.1 905.0 909.5 906.7 903.4 900.6 903.5 907.5 911.4 913.4 910.5 900.6 DAY 23 2 24 30 4 20 6 7 5 20 6 24 1986-2005 905.4 904.8 902.4 904.6 902.3 900.2 900.6 901.6 904.0 909.0 906.6 900.8 900.2 YEAR-DAY 98-13 98- 8 87-14 92-18 4-13 99-25 95-16 94- 2 0- 1 96-27 93-11 88-27 99-25 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 70 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QNH PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1017.9 1015.7 1014.4 1008.9 1011.0 1013.1 1017.6 1019.8 1020.1 1021.0 ****** 1987 1021.4 1019.5 1013.0 1016.1 1015.3 1011.7 1010.9 1010.8 1015.3 1021.5 1022.1 1020.6 1016.5 1988 1019.1 1017.9 1013.3 1015.4 1013.5 1009.9 1007.5 1009.4 1014.3 1019.2 1019.8 1018.5 1014.8 1989 1019.5 1021.5 1014.6 1016.9 1015.2 1009.9 1009.8 1010.3 1013.5 1019.1 1020.5 1018.4 1015.8 1990 1019.6 1016.3 1019.3 1013.8 1013.0 1009.6 1008.6 1009.9 1012.4 1019.1 1020.5 1020.2 1015.2 1991 1019.5 1019.7 1015.6 1015.2 1011.7 1010.3 1007.5 1009.3 1015.1 1019.5 1021.4 1018.5 1015.3 1992 1019.1 1015.4 1017.0 1013.5 1015.3 1010.1 1008.2 1012.3 1016.1 1018.7 1020.2 1019.2 1015.4 1993 1020.3 1018.2 1016.9 1014.5 1014.4 1010.9 1010.3 1012.1 1013.9 1022.4 1019.9 1022.2 1016.3 1994 1019.3 1016.1 1015.6 1016.3 1014.2 1008.2 1006.1 1007.9 1018.1 1021.0 1018.0 1021.5 1015.2 1995 1020.6 1017.7 1016.2 1014.4 1016.0 1010.3 1005.2 1008.7 1013.4 1018.9 1019.1 1022.5 1015.2 1996 1021.5 1016.4 1014.6 1015.8 1014.9 1010.6 1011.3 1011.2 1012.0 1018.9 1023.7 1022.0 1016.1 1997 1017.9 1018.8 1013.7 1013.7 1015.8 1010.5 1005.9 1009.8 1015.2 1018.1 1021.2 1019.4 1015.0 1998 1017.8 1017.9 1015.8 1015.0 1015.2 1013.0 1008.4 1011.9 1013.9 1019.2 1020.7 1022.8 1016.0 1999 1020.1 1016.8 1015.3 1015.6 1013.8 1009.8 1008.6 1011.0 1012.9 1017.9 1020.1 1024.4 1015.5 2000 1018.4 1018.4 1016.2 1014.7 1011.7 1009.7 1010.3 1011.2 1012.8 1019.2 1022.3 1020.4 1015.4 2001 1021.5 1018.3 1016.1 1014.2 1011.8 1009.0 1008.7 1011.6 1014.6 1018.2 1019.7 1021.6 1015.4 2002 1020.2 1019.0 1016.5 1013.0 1012.7 1010.5 1010.2 1008.9 1014.8 1018.3 1021.5 1020.0 1015.5 2003 1019.4 1015.6 1016.0 1015.5 1016.1 1010.1 1005.7 1011.7 1014.7 1017.8 1021.8 1022.9 1015.6 2004 1017.2 1017.9 1018.7 1015.1 1012.9 1010.8 1010.5 1009.7 1016.6 1021.0 1019.6 1020.9 1015.9 2005 1019.4 1017.9 1015.3 1017.7 1014.8 1010.5 1008.4 1010.4 1013.2 1019.6 1021.6 1021.8 1015.9 MEAN 1019.6 1017.9 1015.9 1015.1 1014.1 1010.2 1008.6 1010.5 1014.5 1019.4 1020.7 1020.9 1015.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 71 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QNH PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1024.9 1021.4 1020.6 1016.6 1015.3 1016.2 1022.0 1026.7 1027.5 1033.3 ****** DAY ** ** 17 5 18 2 15 31 22 15 16 7 1987 1030.5 1026.8 1022.2 1024.2 1022.3 1016.9 1015.4 1018.3 1020.9 1028.1 1034.3 1034.2 1034.3 DAY 12 7 23 22 1 28 11 8 26 29 30 1 1988 1029.6 1029.8 1023.3 1026.1 1020.5 1014.8 1013.4 1014.1 1019.9 1025.4 1026.0 1027.3 1029.8 DAY 3 7 17 9 17 8 31 21 14 17 6 30 1989 1027.2 1029.1 1020.4 1022.4 1020.9 1013.3 1014.7 1016.0 1024.3 1025.9 1025.1 1022.8 1029.1 DAY 27 4 8 2 1 2 20 20 23 25 8 18 1990 1029.1 1026.1 1028.0 1019.5 1019.3 1016.8 1012.8 1013.5 1016.6 1028.4 1029.4 1030.6 1030.6 DAY 26 8 10 25 16 1 9 29 28 16 23 28 1991 1028.0 1031.2 1021.8 1021.1 1019.7 1016.0 1011.8 1013.3 1021.9 1023.6 1026.4 1027.3 1031.2 DAY 13 15 12 14 25 23 12 23 27 13 24 17 1992 1030.3 1024.8 1029.0 1018.4 1020.8 1015.9 1012.3 1020.2 1020.4 1024.1 1028.2 1024.9 1030.3 DAY 10 16 12 20 2 11 14 31 1 30 4 29 1993 1028.6 1025.3 1023.4 1021.1 1021.9 1021.0 1016.0 1016.0 1020.5 1028.0 1026.9 1027.8 1028.6 DAY 6 9 23 1 9 23 28 24 16 17 21 26 1994 1029.3 1024.8 1021.4 1027.1 1019.4 1014.1 1011.6 1012.2 1025.9 1026.3 1024.6 1030.0 1030.0 DAY 10 19 17 5 18 9 2 16 23 9 2 8 1995 1027.5 1022.7 1025.5 1019.8 1020.6 1017.0 1009.7 1013.6 1021.0 1027.9 1025.9 1027.2 1027.9 DAY 7 13 3 7 26 1 4 25 22 26 28 11 1996 1029.1 1022.8 1019.8 1023.6 1019.6 1015.8 1016.6 1019.3 1020.4 1027.2 1034.1 1029.2 1034.1 DAY 26 24 29 5 7 12 4 30 25 2 19 4 1997 1025.9 1024.7 1026.9 1020.4 1021.9 1014.9 1010.4 1013.4 1020.6 1023.1 1031.5 1028.3 1031.5 DAY 19 8 11 13 12 8 9 25 15 9 8 29 1998 1026.5 1031.9 1021.7 1024.5 1022.1 1018.7 1016.8 1016.1 1019.1 1027.3 1027.8 1029.4 1031.9 DAY 4 23 27 12 4 17 20 25 13 10 21 10 1999 1032.1 1024.2 1023.4 1020.4 1019.3 1015.7 1013.5 1017.7 1019.3 1023.4 1028.4 1031.2 1032.1 DAY 2 12 19 11 28 17 19 20 29 27 30 6 2000 1026.6 1026.9 1023.1 1019.7 1014.9 1016.6 1017.7 1015.7 1018.1 1024.8 1032.6 1027.2 1032.6 DAY 31 11 27 2 5 14 31 23 26 16 17 4 2001 1026.4 1027.2 1024.3 1022.8 1015.5 1016.9 1014.2 1016.2 1022.2 1026.4 1026.6 1025.7 1027.2 DAY 30 10 2 2 1 2 28 12 22 10 20 10 2002 1028.0 1028.9 1031.6 1021.9 1017.4 1017.3 1016.1 1014.2 1019.4 1022.9 1030.3 1029.4 1031.6 DAY 26 6 11 1 14 25 30 31 23 11 18 3 2003 1024.6 1021.6 1026.9 1021.2 1024.5 1015.5 1013.2 1015.6 1023.0 1023.0 1031.3 1033.8 1033.8 DAY 12 7 3 8 2 7 4 4 27 15 25 12 2004 1024.9 1023.4 1027.2 1021.2 1018.2 1019.4 1015.8 1014.6 1022.8 1026.6 1026.0 1031.8 1031.8 DAY 1 10 9 11 18 6 18 30 30 27 29 4 2005 1026.4 1026.1 1021.6 1028.5 1019.3 1016.0 1014.6 1014.6 1016.2 1026.7 1025.8 1030.3 1030.3 DAY 8 15 27 6 19 9 29 27 9 24 25 29 1986-2005 1032.1 1031.9 1031.6 1028.5 1024.5 1021.0 1017.7 1020.2 1025.9 1028.4 1034.3 1034.2 1034.3 YEAR-DAY 99- 2 98-23 2-11 5- 6 3- 2 93-23 0-31 92-31 94-23 90-16 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 72 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QNH PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1008.5 1011.1 1008.4 1004.5 1005.1 1008.2 1013.5 1014.3 1011.2 1012.8 ****** DAY ** ** 8 11 3 25 20 15 6 1 8 1 1987 1012.8 1011.5 1002.3 1008.6 1009.7 1007.7 1004.6 1006.2 1011.3 1011.8 1011.9 1010.1 1002.3 DAY 3 10 14 4 23 10 3 25 6 4 7 24 1988 1008.3 1006.4 1004.0 1006.8 1007.7 1003.4 1002.7 1004.2 1008.2 1012.2 1012.4 1000.6 1000.6 DAY 29 2 5 25 1 30 8 30 12 31 20 27 1989 1010.8 1010.0 1004.5 1010.1 1010.0 1004.6 1004.0 1003.8 1007.1 1012.2 1015.4 1010.0 1003.8 DAY 17 23 29 29 31 10 6 2 12 2 20 5 1990 1010.6 1006.6 1013.5 1007.7 1005.2 1001.4 1004.5 1005.6 1007.5 1011.8 1010.7 1010.1 1001.4 DAY 23 16 25 16 13 27 2 8 5 1 1 25 1991 1008.8 1010.0 1005.4 1006.0 1006.3 1002.2 1001.4 1004.3 1007.1 1015.6 1013.7 1013.0 1001.4 DAY 26 21 7 10 23 12 14 12 8 15 5 1 1992 1009.4 1008.4 1003.5 1004.7 1010.2 1002.7 1004.3 1004.9 1010.6 1014.7 1008.8 1015.7 1002.7 DAY 3 21 31 18 10 27 10 1 18 6 25 27 1993 1010.1 1009.1 1008.8 1009.7 1010.5 1007.5 1005.1 1006.1 1009.2 1014.5 1006.9 1014.7 1005.1 DAY 9 3 22 13 29 19 12 12 3 2 11 5 1994 1007.7 1006.8 1005.1 1008.3 1009.2 1003.2 1001.2 1001.4 1010.2 1015.8 1008.4 1004.6 1001.2 DAY 16 1 12 2 1 22 31 2 1 2 26 4 1995 1014.2 1006.6 1007.7 1009.4 1012.3 1003.6 1000.3 1004.3 1006.6 1010.6 1013.3 1017.8 1000.3 DAY 12 5 26 19 6 22 16 23 20 12 11 4 1996 1014.9 1008.4 1008.0 1007.5 1009.9 1005.5 1003.6 1005.7 1005.2 1009.5 1016.6 1014.9 1003.6 DAY 5 2 13 13 29 19 7 8 22 27 29 25 1997 1006.3 1012.1 1003.9 1006.1 1008.9 1005.1 1000.6 1004.0 1008.8 1013.6 1016.2 1008.4 1000.6 DAY 16 22 25 5 5 30 16 6 3 7 19 10 1998 1005.6 1004.9 1005.6 1007.7 1007.3 1007.3 1000.8 1007.5 1008.4 1010.8 1015.3 1014.8 1000.8 DAY 13 8 15 22 30 29 8 17 3 1 11 21 1999 1013.0 1008.2 1009.2 1008.6 1006.0 999.9 1004.2 1007.5 1006.4 1014.5 1011.0 1016.2 999.9 DAY 9 20 22 14 20 25 23 14 16 31 26 16 2000 1008.3 1005.5 1008.9 1010.6 1006.6 1003.5 1001.9 1003.7 1004.0 1014.3 1016.3 1011.9 1001.9 DAY 21 7 24 10 20 24 11 31 1 1 22 15 2001 1016.3 1004.9 1003.7 1008.2 1004.4 1001.5 1002.5 1005.1 1008.4 1012.5 1007.4 1014.8 1001.5 DAY 19 21 25 26 30 18 11 27 5 1 18 5 2002 1009.5 1010.1 1007.7 1004.7 1007.3 1003.3 1005.1 1002.6 1009.7 1013.8 1012.4 1009.7 1002.6 DAY 8 27 27 4 20 20 24 17 11 22 12 21 2003 1008.9 1005.8 1005.6 1009.5 1008.4 1002.7 1001.6 1005.7 1007.6 1011.5 1014.5 1013.4 1001.6 DAY 29 19 13 28 8 30 1 1 7 27 14 6 2004 1009.7 1007.4 1008.4 1005.1 1002.2 1005.5 1005.8 1004.8 1010.7 1013.6 1008.3 1013.1 1002.2 DAY 27 15 31 17 13 18 10 4 11 22 23 16 2005 1006.7 1009.6 1005.1 1010.0 1007.0 1003.4 1000.3 1003.5 1007.9 1012.1 1014.3 1011.1 1000.3 DAY 23 2 24 30 4 20 6 7 5 20 6 24 1986-2005 1005.6 1004.9 1002.3 1004.7 1002.2 999.9 1000.3 1001.4 1004.0 1009.5 1006.9 1000.6 999.9 YEAR-DAY 98-13 98- 8 87-14 92-18 4-13 99-25 95-16 94- 2 0- 1 96-27 93-11 88-27 99-25 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 73 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFF PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1019.3 1013.8 1011.1 1003.2 1004.5 1007.4 1013.7 1017.6 1021.5 1024.7 ****** 1987 1024.5 1021.3 1013.7 1014.5 1011.0 1005.5 1004.5 1004.6 1011.0 1020.9 1023.0 1023.2 1014.8 1988 1022.5 1020.5 1013.7 1013.9 1009.1 1003.7 1000.8 1002.9 1009.7 1017.5 1020.7 1021.1 1013.0 1989 1024.1 1026.1 1014.9 1014.7 1011.1 1003.6 1002.7 1004.0 1009.1 1017.0 1021.3 1020.5 1014.1 1990 1023.2 1019.2 1020.1 1012.0 1008.6 1003.0 1001.8 1003.4 1008.0 1017.4 1021.0 1023.3 1013.4 1991 1022.7 1022.7 1016.4 1013.1 1008.0 1004.3 1000.8 1003.4 1010.8 1017.6 1022.3 1021.9 1013.7 1992 1023.5 1018.7 1019.3 1012.2 1012.8 1004.7 1001.3 1006.7 1012.6 1017.2 1021.2 1022.2 1014.4 1993 1025.0 1021.0 1018.1 1012.7 1011.0 1005.2 1003.5 1006.0 1009.4 1021.3 1021.7 1024.9 1015.0 1994 1022.0 1018.6 1015.6 1014.2 1010.3 1002.2 999.1 1001.3 1014.2 1019.3 1018.5 1025.2 1013.4 1995 1023.5 1019.6 1016.3 1012.6 1012.4 1004.7 997.9 1001.9 1009.0 1017.7 1019.9 1026.2 1013.5 1996 1025.6 1018.6 1016.0 1014.5 1011.1 1004.6 1004.8 1005.0 1007.1 1017.6 1025.1 1024.4 1014.5 1997 1020.7 1021.9 1014.9 1012.1 1012.0 1004.4 998.3 1003.2 1010.9 1015.6 1022.0 1022.0 1013.2 1998 1021.5 1020.4 1016.4 1013.0 1011.2 1006.8 1001.3 1005.4 1009.2 1017.5 1020.8 1024.9 1014.0 1999 1023.0 1018.3 1015.7 1013.6 1009.2 1003.2 1002.0 1004.4 1008.3 1015.4 1021.1 1027.0 1013.4 2000 1021.8 1021.0 1016.9 1011.8 1006.6 1003.7 1003.5 1004.8 1007.9 1017.8 1023.5 1022.9 1013.5 2001 1024.9 1020.7 1015.5 1011.1 1007.5 1002.8 1002.0 1005.3 1009.9 1016.0 1020.5 1023.7 1013.3 2002 1023.4 1020.6 1016.5 1011.4 1008.7 1004.1 1002.9 1001.3 1008.9 1014.8 1021.2 1022.3 1013.0 2003 1021.4 1016.9 1016.0 1012.6 1011.6 1003.2 997.1 1004.3 1009.6 1014.1 1022.3 1024.9 1012.8 2004 1018.8 1018.4 1017.0 1012.5 1008.0 1003.3 1002.9 1001.8 1011.0 1018.0 1019.0 1023.3 1012.9 2005 1021.8 1020.1 1014.1 1014.5 1009.9 1003.4 999.8 1002.8 1007.3 1016.5 1021.8 1023.1 1012.9 MEAN 1022.8 1020.2 1016.3 1013.1 1010.1 1004.0 1001.6 1004.0 1009.9 1017.3 1021.4 1023.6 1013.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 74 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFF PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1029.9 1021.4 1018.5 1011.4 1008.6 1011.9 1018.6 1024.6 1030.2 1038.0 ****** DAY ** ** 17 6 18 2 22 31 22 15 16 7 1987 1034.2 1030.5 1024.7 1022.1 1019.1 1010.6 1011.7 1012.6 1017.8 1029.4 1038.9 1038.8 1038.9 DAY 12 7 23 22 1 28 29 8 25 29 30 1 1988 1034.5 1035.6 1024.5 1027.1 1016.0 1008.6 1006.8 1008.3 1016.6 1025.3 1028.7 1033.8 1035.6 DAY 3 7 17 9 17 8 31 26 30 17 16 30 1989 1033.1 1036.0 1021.2 1022.6 1019.0 1008.6 1007.6 1010.3 1022.4 1026.4 1027.1 1026.0 1036.0 DAY 31 4 7 2 1 2 22 20 23 25 22 18 1990 1033.0 1029.4 1031.6 1018.4 1016.2 1012.7 1006.4 1007.5 1013.0 1028.2 1031.3 1037.5 1037.5 DAY 26 8 21 3 15 1 9 29 28 16 23 28 1991 1032.1 1036.8 1024.7 1021.8 1019.5 1009.8 1005.6 1008.1 1019.4 1021.4 1029.3 1032.6 1036.8 DAY 13 15 12 14 25 23 12 23 27 13 27 17 1992 1036.0 1029.6 1034.3 1019.9 1021.9 1010.7 1006.6 1016.6 1017.7 1024.0 1029.8 1029.6 1036.0 DAY 10 16 12 8 2 7 14 31 30 30 4 29 1993 1031.9 1028.9 1027.2 1020.1 1020.6 1016.5 1009.8 1010.7 1016.5 1027.1 1030.1 1031.4 1031.9 DAY 6 9 23 1 9 23 28 24 16 9 30 7 1994 1033.0 1030.1 1022.6 1028.2 1016.3 1008.5 1005.6 1006.5 1024.3 1025.9 1024.4 1036.7 1036.7 DAY 10 19 17 5 8 9 2 22 23 24 10 8 1995 1030.7 1025.4 1027.3 1020.3 1017.3 1014.1 1003.1 1007.4 1019.3 1028.4 1030.0 1030.9 1030.9 DAY 7 13 3 7 29 1 4 25 22 27 28 11 1996 1033.9 1025.4 1022.2 1025.2 1016.9 1011.1 1009.0 1014.2 1017.0 1027.4 1039.0 1033.3 1039.0 DAY 26 13 29 5 7 27 4 30 25 19 19 4 1997 1030.1 1030.4 1029.4 1022.3 1019.2 1009.0 1003.5 1007.5 1018.3 1021.2 1032.0 1033.0 1033.0 DAY 19 8 11 12 7 7 9 29 15 9 8 29 1998 1030.9 1034.7 1024.0 1023.2 1020.6 1013.0 1010.9 1009.5 1015.6 1025.8 1027.0 1032.2 1034.7 DAY 4 23 4 7 4 17 21 8 13 10 21 10 1999 1035.9 1026.4 1026.2 1020.6 1014.6 1009.8 1008.0 1011.5 1017.2 1023.7 1032.8 1035.4 1035.9 DAY 2 12 19 11 22 17 28 20 29 27 30 6 2000 1030.9 1030.7 1025.2 1018.7 1010.8 1012.7 1011.6 1009.5 1014.6 1024.8 1035.0 1029.7 1035.0 DAY 31 11 16 2 11 14 31 23 26 16 17 4 2001 1032.2 1030.1 1026.8 1020.1 1011.9 1012.2 1007.6 1010.6 1020.0 1023.9 1031.2 1029.2 1032.2 DAY 29 10 12 2 6 2 30 14 22 10 20 22 2002 1032.8 1031.6 1034.0 1022.4 1015.2 1011.6 1008.7 1008.4 1015.0 1019.2 1031.3 1032.2 1034.0 DAY 26 6 11 1 14 25 30 31 30 23 18 5 2003 1027.3 1023.6 1030.2 1018.4 1021.9 1010.8 1005.3 1008.5 1019.6 1020.0 1034.9 1037.0 1037.0 DAY 23 13 3 19 2 7 4 31 27 15 25 12 2004 1028.1 1024.7 1025.9 1019.3 1013.6 1012.6 1008.8 1007.8 1019.7 1025.1 1029.3 1035.6 1035.6 DAY 1 8 9 11 18 6 18 30 30 27 29 4 2005 1029.5 1029.8 1023.4 1028.7 1014.1 1010.1 1006.7 1007.8 1010.5 1026.5 1027.3 1034.0 1034.0 DAY 13 15 27 6 12 9 28 13 22 24 29 29 1986-2005 1036.0 1036.8 1034.3 1028.7 1021.9 1016.5 1011.7 1016.6 1024.3 1029.4 1039.0 1038.8 1039.0 YEAR-DAY 92-10 91-15 92-12 5- 6 92- 2 93-23 87-29 92-31 94-23 87-29 96-19 87- 1 96-19 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 75 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFF PRESSURE IN HPA AT 0300 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1007.7 1008.8 1004.7 998.2 997.6 1002.4 1009.7 1011.8 1010.9 1014.4 ****** DAY ** ** 8 30 31 17 20 15 26 1 8 1 1987 1015.3 1013.0 1001.9 1006.7 1004.0 1001.4 998.4 999.8 1006.0 1008.6 1011.1 1011.3 998.4 DAY 3 10 14 19 23 10 3 25 6 4 7 24 1988 1009.9 1006.9 1004.5 1002.3 1002.2 997.0 995.5 997.2 1003.1 1010.2 1012.5 1004.3 995.5 DAY 29 2 5 25 28 30 18 30 12 7 11 27 1989 1014.6 1012.5 1004.9 1006.1 1004.6 998.0 996.9 997.3 1001.2 1008.3 1016.5 1010.9 996.9 DAY 12 23 16 29 6 30 2 2 12 2 20 5 1990 1013.3 1008.7 1012.4 1003.7 1000.1 992.9 996.9 998.5 1002.1 1007.8 1009.3 1013.1 992.9 DAY 23 16 25 29 12 27 28 20 5 1 1 25 1991 1011.4 1010.7 1006.6 1004.0 1001.4 995.5 994.9 998.0 1001.3 1013.6 1012.6 1014.6 994.9 DAY 26 21 7 10 22 12 14 6 8 4 5 1 1992 1012.4 1010.4 1003.1 1002.1 1007.9 996.2 997.5 997.4 1006.4 1010.9 1008.8 1018.3 996.2 DAY 3 21 31 18 10 27 18 1 18 6 25 27 1993 1016.3 1011.3 1010.2 1005.7 1005.3 1001.1 998.2 999.1 1003.5 1010.9 1005.9 1018.3 998.2 DAY 9 3 22 21 20 19 12 12 3 2 11 5 1994 1009.3 1007.2 1005.7 1006.5 1005.1 996.0 993.3 994.2 1004.7 1012.2 1009.1 1005.8 993.3 DAY 16 1 12 26 13 22 31 2 2 2 26 4 1995 1016.7 1006.0 1005.6 1005.8 1007.6 996.5 992.5 996.8 1001.3 1007.4 1011.7 1022.0 992.5 DAY 12 5 26 19 6 22 16 23 20 12 11 4 1996 1016.3 1009.9 1008.9 1004.7 1004.8 999.2 996.3 999.4 1000.0 1007.9 1014.2 1015.9 996.3 DAY 5 2 13 13 30 19 7 8 22 27 2 25 1997 1008.0 1012.1 1003.0 1003.7 1005.2 998.5 992.7 997.1 1002.2 1009.1 1016.8 1010.4 992.7 DAY 16 22 25 28 5 30 16 6 3 7 19 10 1998 1009.4 1004.4 1004.3 1005.1 1002.2 1000.2 993.2 1000.2 1001.6 1006.2 1014.0 1016.1 993.2 DAY 13 8 15 22 21 29 8 17 5 1 11 21 1999 1014.7 1007.3 1008.6 1005.7 999.8 993.3 997.2 1000.8 1001.9 1010.8 1010.4 1017.0 993.3 DAY 9 20 22 8 20 25 4 14 16 13 1 15 2000 1011.2 1007.5 1007.7 1006.0 1000.7 996.9 993.8 997.6 998.1 1011.3 1017.5 1013.9 993.8 DAY 21 7 24 21 20 24 11 31 1 1 22 15 2001 1019.1 1006.4 1000.7 1003.3 998.4 995.0 994.5 999.0 1002.4 1008.7 1006.3 1017.2 994.5 DAY 4 21 25 26 30 18 11 27 5 1 18 5 2002 1011.3 1008.3 1004.0 1005.1 1002.0 995.4 997.1 994.9 1004.4 1009.8 1009.9 1011.8 994.9 DAY 8 27 27 4 20 20 24 18 11 22 12 21 2003 1010.6 1007.7 1005.0 1005.5 1003.1 994.6 993.3 997.7 1001.9 1006.2 1012.5 1013.6 993.3 DAY 16 19 13 28 8 30 30 1 7 27 14 6 2004 1009.9 1004.9 1003.8 1001.8 996.9 997.6 997.9 996.8 1003.3 1009.9 1007.4 1014.4 996.8 DAY 27 15 31 17 13 18 10 12 11 22 23 16 2005 1009.3 1009.7 1002.9 1005.4 1002.5 995.0 992.0 994.7 1001.0 1007.6 1012.9 1011.7 992.0 DAY 23 2 24 30 3 21 6 7 5 21 6 24 1986-2005 1008.0 1004.4 1000.7 1001.8 996.9 992.9 992.0 994.2 998.1 1006.2 1005.9 1004.3 992.0 YEAR-DAY 97-16 98- 8 1-25 4-17 4-13 90-27 5- 6 94- 2 0- 1 98- 1 93-11 88-27 5- 6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 76 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** 1018.5 1012.8 1010.0 1002.2 1003.3 1006.4 1012.8 1016.5 1020.4 1023.7 ****** 1987 1023.5 1020.4 1012.6 1013.5 1009.9 1004.5 1003.3 1003.5 1010.0 1019.9 1022.0 1022.3 1013.8 1988 1021.5 1019.4 1012.6 1012.8 1008.2 1002.7 999.5 1001.8 1008.9 1016.6 1019.7 1020.2 1012.0 1989 1023.2 1025.3 1013.9 1014.0 1010.3 1002.6 1001.6 1002.9 1008.3 1016.1 1020.2 1019.5 1013.2 1990 1022.4 1018.3 1019.2 1011.1 1007.6 1002.3 1000.7 1002.3 1007.1 1016.5 1020.2 1022.4 1012.5 1991 1021.9 1022.0 1015.4 1012.1 1007.0 1003.5 999.7 1002.4 1010.0 1016.8 1021.4 1021.0 1012.8 1992 1022.9 1017.8 1018.4 1011.3 1011.7 1003.7 1000.2 1005.6 1011.8 1016.3 1020.3 1021.4 1013.4 1993 1024.0 1020.0 1017.2 1011.6 1009.9 1004.2 1002.6 1005.0 1008.5 1020.5 1020.7 1024.0 1014.0 1994 1021.1 1017.6 1014.6 1013.2 1009.3 1001.1 998.1 1000.5 1013.5 1018.3 1017.4 1024.4 1012.4 1995 1022.6 1018.6 1015.4 1011.6 1011.3 1003.7 996.8 1001.0 1008.2 1016.8 1019.1 1025.4 1012.5 1996 1024.7 1017.5 1015.0 1013.2 1010.0 1003.7 1003.7 1004.0 1006.1 1016.7 1024.3 1023.5 1013.5 1997 1019.9 1021.1 1013.9 1011.1 1011.1 1003.3 997.3 1002.3 1010.0 1014.7 1021.1 1021.0 1012.2 1998 1020.6 1019.6 1015.4 1011.9 1010.2 1005.6 1000.3 1004.3 1008.4 1016.6 1019.9 1024.1 1013.1 1999 1022.3 1017.4 1014.8 1012.8 1008.4 1002.3 1001.0 1003.4 1007.4 1014.5 1020.2 1026.1 1012.6 2000 1021.0 1020.1 1016.0 1010.9 1005.8 1002.8 1002.5 1003.8 1007.0 1016.8 1022.5 1022.0 1012.6 2001 1024.1 1019.8 1014.7 1010.2 1006.5 1001.8 1000.8 1004.2 1009.0 1015.0 1019.6 1022.7 1012.4 2002 1022.5 1019.7 1015.6 1010.4 1007.7 1003.5 1002.3 1001.2 1008.9 1014.7 1021.2 1022.4 1012.5 2003 1021.4 1016.9 1016.0 1012.6 1011.6 1003.2 997.0 1004.3 1009.5 1014.1 1022.1 1024.8 1012.8 2004 1018.8 1018.4 1017.1 1012.5 1008.0 1003.3 1002.9 1001.8 1011.1 1018.0 1019.0 1023.3 1012.8 2005 1021.8 1020.1 1014.1 1014.5 1009.9 1003.4 999.8 1002.7 1007.3 1016.5 1021.8 1023.0 1012.9 MEAN 1022.1 1019.5 1015.5 1012.2 1009.2 1003.2 1000.7 1003.2 1009.2 1016.6 1020.7 1022.9 1012.9 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 77 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** 1029.2 1020.3 1016.6 1010.5 1007.3 1010.8 1017.7 1023.5 1029.2 1037.1 ****** DAY ** ** 17 6 19 2 16 31 22 15 16 7 1987 1033.3 1029.6 1023.8 1021.8 1018.2 1009.3 1010.5 1011.4 1016.9 1028.3 1038.0 1037.9 1038.0 DAY 12 7 23 22 1 28 29 8 25 29 30 1 1988 1033.6 1034.4 1023.5 1026.2 1015.0 1007.5 1005.6 1007.1 1015.7 1024.3 1028.1 1033.1 1034.4 DAY 3 7 17 9 17 8 31 26 25 17 16 30 1989 1032.3 1035.2 1020.1 1021.6 1018.3 1007.8 1006.5 1009.4 1021.5 1025.4 1026.2 1025.0 1035.2 DAY 31 4 7 2 1 2 23 20 23 25 22 18 1990 1034.0 1028.6 1031.1 1017.3 1015.2 1011.7 1005.4 1006.7 1012.1 1027.3 1030.5 1037.0 1037.0 DAY 26 8 21 3 15 1 9 30 28 16 23 28 1991 1031.2 1036.1 1023.9 1020.6 1018.4 1008.5 1004.6 1007.3 1018.5 1020.8 1028.4 1031.2 1036.1 DAY 13 15 12 14 25 23 12 23 27 17 27 17 1992 1035.7 1029.0 1034.3 1018.8 1020.2 1009.7 1005.3 1015.4 1016.7 1023.2 1028.2 1030.9 1035.7 DAY 10 16 12 8 2 11 14 31 30 30 4 29 1993 1031.0 1028.0 1026.4 1019.2 1019.5 1015.4 1008.6 1009.8 1015.4 1026.4 1029.3 1030.5 1031.0 DAY 6 9 23 1 9 23 28 31 16 9 30 7 1994 1032.1 1029.5 1021.7 1027.1 1015.3 1007.7 1004.7 1005.7 1023.5 1024.9 1023.4 1036.0 1036.0 DAY 10 19 17 5 18 9 2 22 23 10 10 8 1995 1029.7 1024.6 1026.2 1019.2 1016.0 1012.8 1001.9 1006.3 1018.3 1027.3 1029.2 1029.9 1029.9 DAY 7 13 3 7 29 1 4 25 22 27 28 11 1996 1033.0 1024.5 1020.8 1023.2 1015.8 1009.9 1007.8 1013.0 1016.0 1026.4 1037.2 1032.5 1037.2 DAY 26 13 29 4 7 27 22 30 25 19 19 4 1997 1029.3 1029.8 1028.7 1021.4 1018.2 1007.9 1002.3 1007.8 1017.4 1020.3 1031.0 1032.0 1032.0 DAY 19 8 11 12 7 7 9 29 15 9 8 29 1998 1029.7 1034.9 1023.2 1022.3 1019.5 1011.9 1009.7 1008.4 1014.4 1024.5 1027.3 1031.3 1034.9 DAY 4 23 4 7 4 17 21 8 13 10 21 10 1999 1035.1 1025.4 1025.4 1019.8 1013.6 1008.9 1006.6 1010.2 1016.4 1022.7 1032.0 1034.6 1035.1 DAY 2 12 19 11 22 17 28 20 29 27 30 6 2000 1030.1 1029.9 1024.4 1017.9 1010.0 1011.8 1010.4 1008.5 1013.6 1023.6 1034.0 1028.6 1034.0 DAY 31 11 16 2 11 14 31 20 26 16 17 4 2001 1032.5 1029.2 1026.0 1019.1 1011.0 1011.1 1006.7 1009.6 1019.0 1023.0 1030.5 1028.5 1032.5 DAY 30 10 12 2 1 2 30 14 22 10 20 22 2002 1032.0 1030.7 1033.2 1021.4 1014.2 1010.6 1008.7 1007.4 1015.0 1019.1 1031.3 1032.2 1033.2 DAY 26 6 11 1 14 25 30 31 30 11 18 5 2003 1027.2 1023.6 1030.2 1018.4 1022.0 1010.7 1005.3 1008.5 1019.5 1019.9 1034.1 1036.9 1036.9 DAY 23 13 3 19 2 7 4 31 27 15 25 12 2004 1028.1 1024.7 1026.0 1019.3 1013.7 1012.6 1008.8 1007.8 1019.7 1025.0 1029.3 1035.7 1035.7 DAY 1 8 9 11 18 6 18 30 30 27 29 4 2005 1029.5 1029.8 1023.4 1028.7 1014.1 1010.5 1006.9 1007.4 1010.5 1026.5 1027.2 1034.0 1034.0 DAY 13 15 27 6 19 9 29 28 28 24 25 30 1986-2005 1035.7 1036.1 1034.3 1028.7 1022.0 1015.4 1010.5 1015.4 1023.5 1028.3 1038.0 1037.9 1038.0 YEAR-DAY 92-10 91-15 92-12 5- 6 3- 2 93-23 87-29 92-31 94-23 87-29 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 78 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** 1007.6 1007.8 1003.6 997.2 996.6 1001.6 1008.9 1010.6 1010.0 1013.3 ****** DAY ** ** 8 30 31 17 20 15 26 1 8 1 1987 1014.7 1011.9 1001.0 1005.7 1003.1 999.8 996.8 999.1 1005.2 1007.7 1010.0 1010.0 996.8 DAY 27 10 14 19 23 18 3 25 6 4 7 24 1988 1008.9 1005.8 1002.3 1001.2 1001.4 995.9 994.3 996.3 1002.3 1009.4 1011.7 1003.5 994.3 DAY 29 2 21 25 28 30 18 30 12 7 11 27 1989 1013.5 1011.5 1003.9 1005.2 1003.6 997.1 995.9 996.3 1000.5 1007.5 1015.5 1009.7 995.9 DAY 12 23 16 29 31 30 2 2 12 2 20 5 1990 1012.4 1007.6 1011.4 1002.7 999.0 992.9 996.0 997.4 1001.2 1006.8 1008.2 1012.1 992.9 DAY 23 16 25 29 12 27 28 20 5 1 1 25 1991 1010.3 1009.4 1005.7 1002.9 1000.6 994.3 993.6 997.2 1000.6 1012.8 1011.8 1013.6 993.6 DAY 26 21 7 10 22 12 14 6 8 4 5 1 1992 1011.4 1009.5 1002.2 1001.1 1006.6 995.1 996.3 996.4 1005.6 1009.9 1008.2 1017.5 995.1 DAY 3 25 31 18 10 27 19 1 18 6 25 4 1993 1015.3 1010.0 1009.4 1004.7 1004.7 1000.3 997.3 998.4 1002.7 1010.2 1004.8 1017.4 997.3 DAY 9 3 22 21 29 19 12 12 3 2 11 5 1994 1008.4 1006.1 1004.7 1005.5 1004.0 994.9 992.5 993.5 1003.1 1011.1 1008.0 1005.4 992.5 DAY 16 1 12 26 13 22 31 2 1 2 26 4 1995 1015.9 1005.1 1004.9 1004.7 1006.4 995.2 991.5 995.9 1000.5 1006.5 1010.8 1019.9 991.5 DAY 12 5 26 19 6 22 16 23 20 12 11 4 1996 1015.4 1009.2 1007.9 1003.7 1003.8 998.5 995.2 998.6 999.2 1007.1 1016.4 1015.0 995.2 DAY 5 2 13 13 29 19 7 8 22 27 29 25 1997 1007.1 1011.2 1001.9 1003.5 1004.6 997.6 991.6 996.2 1001.7 1008.1 1015.7 1009.3 991.6 DAY 16 22 25 28 5 30 16 6 3 7 19 10 1998 1008.4 1003.3 1003.5 1004.2 1002.2 999.3 992.2 999.2 1001.5 1005.2 1013.3 1015.9 992.2 DAY 13 8 15 22 21 29 8 17 5 1 11 21 1999 1013.7 1006.3 1007.7 1005.3 999.2 992.4 996.3 1000.0 999.6 1009.8 1009.3 1016.7 992.4 DAY 9 20 22 14 20 25 4 14 16 13 1 16 2000 1010.4 1006.5 1006.8 1005.1 1000.0 996.1 992.8 996.8 997.3 1010.3 1016.5 1012.9 992.8 DAY 21 7 24 21 20 24 11 31 1 1 22 15 2001 1018.1 1005.5 999.8 1002.5 997.5 994.3 993.6 997.9 1001.5 1007.9 1005.5 1016.2 993.6 DAY 4 21 25 26 30 18 11 27 5 1 18 5 2002 1010.2 1007.5 1003.4 1004.1 1001.2 995.4 996.8 994.9 1004.4 1009.5 1009.9 1011.8 994.9 DAY 8 27 27 4 20 20 25 18 11 22 12 21 2003 1010.6 1007.7 1005.1 1005.4 1003.1 994.6 993.2 997.6 1001.9 1006.1 1012.5 1013.6 993.2 DAY 16 19 13 28 8 30 30 1 7 27 14 6 2004 1009.9 1004.8 1003.8 1001.8 996.9 997.6 997.9 996.8 1003.3 1009.9 1007.4 1014.9 996.8 DAY 27 15 31 17 13 18 10 12 11 22 23 16 2005 1009.2 1009.6 1002.9 1005.4 1002.4 994.9 991.9 994.6 1001.0 1007.6 1012.9 1011.6 991.9 DAY 23 2 24 30 3 21 6 7 5 21 6 24 1986-2005 1007.1 1003.3 999.8 1001.1 996.9 992.4 991.5 993.5 997.3 1005.2 1004.8 1003.5 991.5 YEAR-DAY 97-16 98- 8 1-25 92-18 4-13 99-25 95-16 94- 2 0- 1 98- 1 93-11 88-27 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 79 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFE PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 917.3 915.5 914.1 909.0 911.1 913.2 917.5 919.7 920.0 920.7 ****** 1987 921.2 919.4 913.4 915.8 914.8 911.6 910.8 910.9 915.2 921.2 921.6 920.6 916.4 1988 919.1 917.9 913.6 915.5 913.3 909.7 907.6 909.6 914.5 919.2 919.8 918.3 914.8 1989 919.5 921.4 914.8 916.7 914.8 909.9 910.1 910.7 913.7 919.1 920.5 918.6 915.8 1990 919.8 916.5 919.1 913.7 912.8 909.6 909.0 910.2 913.0 919.1 920.5 920.2 915.3 1991 919.3 919.5 915.8 915.2 911.6 910.3 907.8 909.7 915.2 919.5 921.1 918.3 915.3 1992 919.1 915.4 917.0 913.6 914.9 909.9 908.6 912.5 916.0 918.6 920.2 919.1 915.4 1993 920.3 918.5 917.2 914.5 914.1 910.9 910.4 912.1 914.1 922.1 920.2 921.8 916.3 1994 919.2 916.3 915.9 916.1 914.0 908.4 906.6 908.5 918.1 920.8 918.1 921.1 915.2 1995 920.7 917.8 916.4 914.2 915.7 910.2 905.8 909.5 913.7 919.2 919.2 922.1 915.4 1996 921.4 916.8 914.8 915.7 914.5 910.6 911.4 911.4 912.1 918.8 923.2 921.8 916.0 1997 918.1 918.8 913.8 913.9 915.0 910.3 906.3 910.1 915.3 918.0 920.9 919.4 915.0 1998 917.9 918.0 915.8 914.8 914.9 912.7 908.7 912.1 914.1 919.2 920.6 922.6 916.0 1999 919.9 916.9 915.4 915.4 913.6 909.7 908.6 911.2 913.1 917.9 919.9 923.9 915.5 2000 918.4 918.3 916.3 914.8 911.7 909.7 910.4 911.3 913.0 919.0 922.0 920.2 915.4 2001 921.3 918.1 916.1 914.2 911.7 909.1 908.8 911.8 914.6 918.1 919.5 921.4 915.4 2002 920.1 918.9 916.5 912.9 912.6 910.3 910.2 909.2 914.8 918.1 921.3 919.8 915.4 2003 919.5 915.6 916.1 915.3 915.7 910.0 906.2 911.8 914.8 917.7 921.5 922.7 915.6 2004 917.2 917.9 918.4 914.9 912.4 910.6 910.4 909.9 916.4 920.7 919.3 920.8 915.8 2005 919.1 917.7 915.1 917.4 914.4 910.3 908.7 910.5 913.2 919.3 921.1 921.6 915.7 MEAN 919.5 917.9 915.9 915.0 913.8 910.1 908.9 910.8 914.6 919.3 920.5 920.7 915.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 80 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFE PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 923.9 922.5 920.4 916.4 914.3 915.8 921.7 926.2 926.4 931.4 ****** DAY ** ** 28 5 18 2 15 31 22 15 16 7 1987 929.4 926.1 922.3 923.4 920.6 916.3 914.9 917.4 920.6 927.4 933.0 932.6 933.0 DAY 12 12 23 22 1 28 11 8 24 16 30 1 1988 929.4 929.1 923.0 925.8 919.7 914.4 912.9 914.3 919.6 925.4 925.3 926.4 929.4 DAY 3 7 17 9 17 8 31 21 14 16 6 30 1989 926.7 929.4 920.2 921.8 920.7 913.0 914.2 915.7 924.0 925.0 925.0 923.2 929.4 DAY 27 4 7 2 1 2 21 20 23 25 22 18 1990 928.6 926.1 928.0 918.8 919.0 916.4 913.1 914.2 916.6 928.1 928.5 930.6 930.6 DAY 26 8 10 24 15 1 17 29 24 19 23 28 1991 927.0 930.5 923.0 920.8 918.4 916.1 911.4 913.5 921.7 923.3 926.0 927.1 930.5 DAY 12 15 12 19 25 23 12 23 27 13 24 17 1992 929.4 923.7 928.5 917.7 920.5 914.9 912.2 920.0 920.0 923.1 928.2 924.1 929.4 DAY 10 16 12 20 2 11 14 31 1 30 4 29 1993 928.6 925.1 923.2 921.1 921.0 919.5 915.5 915.5 920.5 927.0 927.0 927.3 928.6 DAY 6 9 23 1 9 23 27 25 23 17 21 26 1994 928.0 925.0 921.5 929.0 919.0 914.1 911.3 913.0 925.5 925.7 924.4 928.0 929.0 DAY 10 19 18 5 18 9 2 22 23 10 2 8 1995 928.6 923.0 925.2 919.4 920.0 916.7 909.6 914.0 921.0 927.2 926.1 926.4 928.6 DAY 7 12 3 7 26 1 4 25 22 25 16 10 1996 928.1 923.0 918.8 922.5 919.0 914.6 916.2 918.6 920.0 926.4 933.0 928.2 933.0 DAY 26 13 29 4 7 12 4 30 25 2 18 2 1997 925.9 925.5 927.2 920.0 920.8 914.2 910.2 914.2 920.0 923.0 930.2 927.5 930.2 DAY 19 7 11 13 12 8 9 25 15 9 8 28 1998 925.8 931.1 921.4 923.8 921.8 917.3 916.4 915.7 918.6 925.8 926.9 928.5 931.1 DAY 4 23 27 12 9 17 21 25 12 10 21 29 1999 931.8 924.0 922.7 920.0 919.3 914.8 913.4 917.7 919.7 922.7 928.0 930.2 931.8 DAY 2 12 19 11 28 8 19 20 29 27 30 6 2000 925.4 925.5 922.6 920.0 915.5 915.5 917.0 916.0 918.2 924.6 931.2 927.0 931.2 DAY 31 11 27 2 5 16 30 23 29 16 17 4 2001 925.4 926.9 924.2 922.0 915.2 916.7 914.5 916.4 922.1 925.9 926.5 925.5 926.9 DAY 29 9 1 2 1 2 28 14 22 10 20 22 2002 927.3 927.4 929.8 921.0 918.0 917.4 915.1 914.5 919.5 922.2 929.6 929.2 929.8 DAY 26 6 11 1 17 25 29 31 30 10 18 3 2003 924.3 922.3 927.3 920.5 923.7 915.0 912.6 915.2 922.5 922.4 931.0 932.4 932.4 DAY 12 12 2 3 2 7 4 30 27 15 25 12 2004 923.7 923.4 926.5 920.8 917.2 918.3 915.9 914.5 922.1 926.1 925.2 930.7 930.7 DAY 1 10 9 11 22 6 18 30 30 27 29 3 2005 926.1 925.7 921.1 927.8 918.1 915.0 913.9 914.5 916.2 925.9 925.0 929.7 929.7 DAY 8 15 27 6 12 9 28 27 9 24 15 29 1986-2005 931.8 931.1 929.8 929.0 923.7 919.5 917.0 920.0 925.5 928.1 933.0 932.6 933.0 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 0-30 92-31 94-23 90-19 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 81 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFE PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 908.7 911.3 909.8 904.8 905.4 909.4 914.1 914.8 911.7 912.0 ****** DAY ** ** 8 11 31 28 20 15 6 1 8 20 1987 914.3 911.4 903.8 908.5 910.0 908.4 904.5 907.0 911.2 912.2 911.5 912.5 903.8 DAY 3 10 14 19 23 10 3 25 6 4 7 24 1988 911.2 906.7 905.9 908.0 908.6 904.0 903.4 904.9 909.5 913.4 912.4 901.3 901.3 DAY 29 2 21 25 28 30 8 30 12 30 20 27 1989 910.4 910.1 904.8 910.0 909.8 904.5 905.5 904.8 907.5 912.6 916.0 912.6 904.5 DAY 17 23 29 29 31 10 1 2 12 2 16 5 1990 912.5 907.7 914.0 907.8 904.9 902.4 905.1 906.5 908.5 911.9 912.0 911.1 902.4 DAY 23 16 25 16 13 27 2 8 5 14 1 25 1991 910.8 911.5 906.7 907.6 906.7 902.8 902.8 905.0 907.0 915.5 914.5 912.7 902.8 DAY 25 21 7 10 28 12 14 6 8 4 4 1 1992 911.5 909.3 905.0 905.8 909.8 903.0 904.8 906.0 911.1 915.0 910.2 915.3 903.0 DAY 3 25 31 18 4 27 10 1 18 5 25 27 1993 910.8 909.8 910.2 910.1 910.9 907.9 906.5 906.4 909.5 915.0 908.1 914.8 906.4 DAY 8 3 22 13 20 19 13 12 14 2 11 5 1994 909.5 906.5 906.0 908.6 909.5 903.8 903.0 902.8 911.3 915.2 909.0 905.7 902.8 DAY 16 1 12 2 1 22 8 2 1 2 26 4 1995 914.4 907.3 910.0 909.0 912.7 903.2 900.9 905.6 907.2 911.9 912.4 917.4 900.9 DAY 12 5 26 16 6 22 16 23 20 12 11 4 1996 914.5 908.2 909.3 907.9 909.1 905.5 904.7 906.0 906.5 910.0 916.1 915.6 904.7 DAY 6 5 13 13 29 19 7 8 22 27 29 25 1997 908.3 912.8 903.9 908.0 908.2 905.0 902.2 905.0 908.8 913.8 916.4 909.5 902.2 DAY 16 27 25 10 4 30 16 6 3 6 19 10 1998 905.9 907.4 906.8 908.1 907.0 908.4 901.7 909.0 908.8 912.2 916.0 915.6 901.7 DAY 13 8 15 24 30 29 5 21 3 1 1 21 1999 912.2 908.4 910.5 908.2 905.1 900.4 905.0 907.0 907.4 915.0 910.6 917.0 900.4 DAY 9 20 21 14 20 25 23 14 16 31 26 15 2000 908.5 907.3 907.7 909.8 907.0 903.5 902.9 905.0 905.4 914.0 916.9 912.1 902.9 DAY 21 7 24 10 26 24 11 31 1 1 22 15 2001 916.2 904.8 903.7 908.0 904.5 903.3 903.4 905.8 909.0 912.3 907.0 914.8 903.3 DAY 19 21 25 12 30 18 11 27 5 1 18 5 2002 911.4 910.1 908.0 905.0 907.6 903.3 904.6 903.6 910.8 914.7 911.9 910.1 903.3 DAY 8 25 28 4 20 20 24 17 10 30 12 21 2003 910.5 905.6 906.3 909.7 910.1 903.0 902.9 905.8 907.9 911.6 914.9 913.0 902.9 DAY 28 19 26 28 8 30 8 1 7 27 14 6 2004 909.7 906.9 908.0 906.6 901.7 906.2 905.6 904.7 910.7 914.6 909.1 913.0 901.7 DAY 27 23 31 17 13 17 10 4 11 22 23 16 2005 906.6 910.0 905.1 910.0 907.4 903.0 901.1 904.2 908.4 911.8 915.4 912.6 901.1 DAY 23 2 24 30 4 20 6 7 5 20 6 24 1986-2005 905.9 904.8 903.7 905.0 901.7 900.4 900.9 902.8 905.4 910.0 907.0 901.3 900.4 YEAR-DAY 98-13 1-21 1-25 2- 4 4-13 99-25 95-16 94- 2 0- 1 96-27 1-18 88-27 99-25 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 82 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QNH PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1018.6 1016.5 1015.1 1009.4 1011.7 1014.0 1018.7 1021.2 1021.4 1022.3 ****** 1987 1022.8 1020.8 1014.3 1016.9 1015.8 1012.3 1011.4 1011.6 1016.3 1022.7 1023.2 1022.1 1017.5 1988 1020.5 1019.2 1014.5 1016.6 1014.2 1010.3 1007.9 1010.1 1015.4 1020.6 1021.2 1019.7 1015.8 1989 1021.0 1023.0 1015.8 1017.9 1015.8 1010.5 1010.7 1011.3 1014.6 1020.5 1022.0 1019.9 1016.9 1990 1021.3 1017.7 1020.5 1014.7 1013.6 1010.2 1009.5 1010.8 1013.8 1020.4 1022.0 1021.7 1016.4 1991 1020.7 1020.9 1016.8 1016.2 1012.4 1010.9 1008.2 1010.2 1016.2 1020.9 1022.7 1019.6 1016.3 1992 1020.5 1016.4 1018.2 1014.5 1015.9 1010.4 1009.0 1013.3 1017.1 1019.9 1021.6 1020.5 1016.5 1993 1021.7 1019.8 1018.4 1015.5 1015.1 1011.5 1011.1 1012.9 1015.0 1023.7 1021.6 1023.4 1017.5 1994 1020.6 1017.5 1017.0 1017.2 1015.0 1008.8 1006.9 1008.9 1019.4 1022.3 1019.3 1022.6 1016.3 1995 1022.2 1019.1 1017.6 1015.2 1016.7 1010.8 1006.0 1010.1 1014.6 1020.6 1020.6 1023.8 1016.4 1996 1023.0 1018.0 1015.8 1016.8 1015.5 1011.2 1012.1 1012.2 1012.8 1020.2 1025.0 1023.4 1017.2 1997 1019.4 1020.2 1014.7 1014.9 1016.0 1010.9 1006.6 1010.7 1016.3 1019.3 1022.4 1020.9 1016.0 1998 1019.2 1019.3 1016.9 1015.9 1015.9 1013.5 1009.2 1012.9 1015.0 1020.6 1022.1 1024.3 1017.1 1999 1021.4 1018.1 1016.5 1016.5 1014.5 1010.3 1009.0 1011.9 1014.0 1019.2 1021.3 1025.7 1016.5 2000 1019.7 1019.6 1017.4 1015.8 1012.4 1010.3 1011.0 1012.0 1013.9 1020.4 1023.7 1021.6 1016.5 2001 1022.8 1019.4 1017.2 1015.2 1012.4 1009.5 1009.3 1012.5 1015.6 1019.4 1020.9 1023.0 1016.4 2002 1021.5 1020.3 1017.7 1013.8 1013.4 1011.0 1010.8 1009.7 1015.8 1019.4 1022.8 1021.3 1016.4 2003 1020.9 1016.7 1017.2 1016.4 1016.8 1010.5 1006.4 1012.5 1015.8 1018.9 1023.1 1024.4 1016.6 2004 1018.4 1019.2 1019.7 1015.9 1013.2 1011.2 1011.0 1010.5 1017.6 1022.3 1020.7 1022.3 1016.8 2005 1020.5 1018.9 1016.1 1018.6 1015.3 1010.9 1009.1 1011.1 1014.1 1020.7 1022.7 1023.2 1016.8 MEAN 1021.0 1019.2 1017.0 1016.0 1014.8 1010.7 1009.3 1011.5 1015.6 1020.7 1022.0 1022.3 1016.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 83 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QNH PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1025.7 1024.2 1021.9 1017.5 1015.3 1016.9 1023.3 1028.2 1028.4 1033.9 ****** DAY ** ** 28 5 18 2 15 31 22 15 16 7 1987 1031.7 1028.1 1024.0 1025.2 1022.1 1017.4 1015.9 1018.6 1022.1 1029.5 1035.6 1035.2 1035.6 DAY 12 12 23 22 1 28 11 8 24 16 30 1 1988 1031.7 1031.4 1024.7 1027.8 1021.1 1015.4 1013.7 1015.3 1021.0 1027.3 1027.2 1028.4 1031.7 DAY 3 7 17 9 17 8 31 21 14 16 6 30 1989 1028.8 1031.7 1021.7 1023.4 1022.2 1013.8 1015.2 1016.8 1025.8 1026.9 1026.9 1024.9 1031.7 DAY 27 4 7 2 1 2 21 20 23 25 22 18 1990 1030.8 1028.1 1030.2 1020.2 1020.4 1017.5 1014.0 1015.2 1017.8 1030.3 1030.7 1033.0 1033.0 DAY 26 8 10 24 15 1 17 29 24 19 23 28 1991 1029.1 1032.9 1024.7 1022.3 1019.7 1017.2 1012.1 1014.4 1023.3 1025.1 1028.0 1029.2 1032.9 DAY 12 15 12 19 25 23 12 23 27 13 24 17 1992 1031.7 1025.5 1030.7 1019.0 1022.0 1015.9 1013.0 1021.5 1021.5 1024.8 1030.4 1025.9 1031.7 DAY 10 16 12 20 2 11 14 31 1 30 4 29 1993 1030.8 1027.0 1024.9 1022.7 1022.6 1020.9 1016.6 1016.6 1022.0 1029.1 1029.1 1029.4 1030.8 DAY 6 9 23 1 9 23 27 25 23 17 21 26 1994 1030.2 1026.9 1023.1 1031.3 1020.4 1015.0 1012.0 1013.8 1027.5 1027.7 1026.3 1030.2 1031.3 DAY 10 19 18 5 18 9 2 22 23 10 2 8 1995 1030.8 1024.7 1027.1 1020.8 1021.5 1017.9 1010.1 1014.9 1022.6 1029.3 1028.1 1028.4 1030.8 DAY 7 12 3 7 26 1 4 25 22 25 16 10 1996 1030.3 1024.7 1020.2 1024.2 1020.4 1015.6 1017.3 1019.9 1021.5 1028.4 1035.6 1030.4 1035.6 DAY 26 13 29 4 7 12 4 30 25 2 18 2 1997 1027.9 1027.5 1029.3 1021.5 1022.3 1015.2 1010.8 1015.2 1021.5 1024.7 1032.6 1029.6 1032.6 DAY 19 7 11 13 12 8 9 25 15 9 8 28 1998 1027.8 1033.5 1023.0 1025.6 1023.4 1018.5 1017.5 1016.8 1019.9 1027.8 1029.0 1030.7 1033.5 DAY 4 23 27 12 9 17 21 25 12 10 21 29 1999 1034.3 1025.8 1024.4 1021.5 1020.7 1015.8 1014.3 1019.0 1021.1 1024.4 1030.2 1032.6 1034.3 DAY 2 12 19 11 28 8 19 20 29 27 30 6 2000 1027.3 1027.5 1024.3 1021.5 1016.6 1016.6 1018.2 1017.1 1019.5 1026.5 1033.7 1029.1 1033.7 DAY 31 11 27 2 5 16 30 23 29 16 17 4 2001 1027.3 1029.0 1026.0 1023.6 1016.2 1017.9 1015.5 1017.5 1023.8 1027.9 1028.5 1027.5 1029.0 DAY 29 9 1 2 1 2 28 14 22 10 20 22 2002 1029.4 1029.5 1032.1 1022.6 1019.3 1018.6 1016.1 1015.5 1020.9 1023.9 1031.9 1031.5 1032.1 DAY 26 6 11 1 17 25 29 31 30 10 18 3 2003 1026.1 1024.0 1029.4 1022.0 1025.5 1016.0 1013.4 1016.2 1024.2 1024.1 1033.4 1035.0 1035.0 DAY 12 12 2 3 2 7 4 30 27 15 25 12 2004 1025.5 1025.2 1028.5 1022.3 1018.4 1019.6 1017.0 1015.5 1023.8 1028.1 1027.1 1033.1 1033.1 DAY 1 10 9 11 22 6 18 30 30 27 29 3 2005 1028.1 1027.7 1022.7 1030.0 1019.4 1016.0 1014.8 1015.5 1017.3 1027.9 1026.9 1032.0 1032.0 DAY 8 15 27 6 12 9 28 27 9 24 15 29 1986-2005 1034.3 1033.5 1032.1 1031.3 1025.5 1020.9 1018.2 1021.5 1027.5 1030.3 1035.6 1035.2 1035.6 YEAR-DAY 99- 2 98-23 2-11 94- 5 3- 2 93-23 0-30 92-31 94-23 90-19 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 84 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QNH PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1009.2 1012.0 1010.4 1004.9 1005.6 1009.9 1015.0 1015.8 1012.4 1012.8 ****** DAY ** ** 8 11 31 28 20 15 6 1 8 20 1987 1015.3 1012.1 1003.8 1008.9 1010.6 1008.8 1004.6 1007.3 1011.9 1013.0 1012.2 1013.3 1003.8 DAY 3 10 14 19 23 10 3 25 6 4 7 24 1988 1011.9 1007.0 1006.1 1008.4 1009.1 1004.0 1003.4 1005.0 1010.0 1014.3 1013.2 1001.1 1001.1 DAY 29 2 21 25 28 30 8 30 12 30 20 27 1989 1011.0 1010.7 1004.9 1010.6 1010.4 1004.6 1005.7 1004.9 1007.9 1013.4 1017.1 1013.4 1004.6 DAY 17 23 29 29 31 10 1 2 12 2 16 5 1990 1013.3 1008.1 1014.9 1008.2 1005.0 1002.3 1005.2 1006.8 1008.9 1012.6 1012.8 1011.8 1002.3 DAY 23 16 25 16 13 27 2 8 5 14 1 25 1991 1011.5 1012.2 1007.0 1008.0 1007.0 1002.7 1002.7 1005.1 1007.3 1016.6 1015.5 1013.5 1002.7 DAY 25 21 7 10 28 12 14 6 8 4 4 1 1992 1012.2 1009.8 1005.1 1006.0 1010.4 1003.0 1004.9 1006.2 1011.8 1016.0 1010.8 1016.3 1003.0 DAY 3 25 31 18 4 27 10 1 18 5 25 27 1993 1011.5 1010.4 1010.8 1010.7 1011.6 1008.3 1006.8 1006.7 1010.0 1016.0 1008.5 1015.8 1006.7 DAY 8 3 22 13 20 19 13 12 14 2 11 5 1994 1010.0 1006.8 1006.2 1009.1 1010.0 1003.8 1003.0 1002.7 1012.0 1016.2 1009.5 1005.9 1002.7 DAY 16 1 12 2 1 22 8 2 1 2 26 4 1995 1015.4 1007.6 1010.6 1009.5 1013.5 1003.2 1000.7 1005.8 1007.5 1012.6 1013.2 1018.6 1000.7 DAY 12 5 26 16 6 22 16 23 20 12 11 4 1996 1015.5 1008.6 1009.8 1008.3 1009.6 1005.7 1004.8 1006.2 1006.8 1010.6 1017.2 1016.7 1004.8 DAY 6 5 13 13 29 19 7 8 22 27 29 25 1997 1008.7 1013.6 1003.9 1008.4 1008.6 1005.1 1002.1 1005.1 1009.3 1014.7 1017.5 1010.0 1002.1 DAY 16 27 25 10 4 30 16 6 3 6 19 10 1998 1006.1 1007.7 1007.1 1008.5 1007.3 1008.8 1001.5 1009.5 1009.3 1013.0 1017.1 1016.7 1001.5 DAY 13 8 15 24 30 29 5 21 3 1 1 21 1999 1013.0 1008.8 1011.1 1008.6 1005.2 1000.1 1005.1 1007.3 1007.7 1016.0 1011.2 1018.2 1000.1 DAY 9 20 21 14 20 25 23 14 16 31 26 15 2000 1008.9 1007.6 1008.1 1010.4 1007.3 1003.5 1002.8 1005.1 1005.6 1014.9 1018.1 1012.9 1002.8 DAY 21 7 24 10 26 24 11 31 1 1 22 15 2001 1017.3 1004.9 1003.7 1008.4 1004.6 1003.3 1003.4 1006.0 1009.5 1013.1 1007.3 1015.8 1003.3 DAY 19 21 25 12 30 18 11 27 5 1 18 5 2002 1012.1 1010.7 1008.4 1005.1 1008.0 1003.3 1004.7 1003.6 1011.5 1015.7 1012.6 1010.7 1003.3 DAY 8 25 28 4 20 20 24 17 10 30 12 21 2003 1011.1 1005.8 1006.6 1010.2 1010.7 1003.0 1002.8 1006.0 1008.3 1012.3 1015.9 1013.8 1002.8 DAY 28 19 26 28 8 30 8 1 7 27 14 6 2004 1010.2 1007.2 1008.4 1006.9 1001.5 1006.4 1005.8 1004.8 1011.3 1015.6 1009.6 1013.8 1001.5 DAY 27 23 31 17 13 17 10 4 11 22 23 16 2005 1006.9 1010.6 1005.2 1010.6 1007.7 1003.0 1000.9 1004.3 1008.8 1012.5 1016.5 1013.4 1000.9 DAY 23 2 24 30 4 20 6 7 5 20 6 24 1986-2005 1006.1 1004.9 1003.7 1005.1 1001.5 1000.1 1000.7 1002.7 1005.6 1010.6 1007.3 1001.1 1000.1 YEAR-DAY 98-13 1-21 1-25 2- 4 4-13 99-25 95-16 94- 2 0- 1 96-27 1-18 88-27 99-25 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 85 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFF PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1019.9 1014.4 1011.4 1003.5 1004.8 1007.9 1014.2 1018.4 1022.4 1025.9 ****** 1987 1025.7 1022.6 1014.6 1014.7 1011.0 1005.8 1004.7 1004.8 1011.5 1021.7 1023.7 1024.8 1015.5 1988 1023.8 1021.6 1014.4 1014.7 1009.4 1003.9 1000.8 1003.4 1010.4 1018.4 1021.6 1022.4 1013.7 1989 1025.6 1027.6 1016.2 1015.0 1011.3 1003.8 1003.3 1004.6 1009.8 1017.8 1022.3 1022.0 1014.9 1990 1025.0 1020.5 1021.1 1012.4 1008.7 1003.5 1002.4 1003.9 1008.6 1018.2 1022.4 1024.4 1014.3 1991 1024.0 1024.1 1017.3 1013.6 1008.5 1004.7 1001.1 1003.8 1011.4 1018.5 1023.4 1023.0 1014.4 1992 1025.0 1019.6 1020.3 1012.8 1013.3 1004.7 1001.8 1007.2 1013.0 1017.9 1022.4 1023.4 1015.1 1993 1026.4 1022.6 1019.3 1013.3 1011.2 1005.5 1004.0 1006.4 1009.8 1022.2 1023.2 1026.1 1015.8 1994 1023.4 1019.9 1016.7 1014.6 1010.8 1002.6 999.7 1001.9 1015.0 1020.1 1019.6 1026.3 1014.2 1995 1025.0 1020.9 1017.5 1012.8 1012.8 1005.0 998.5 1003.0 1009.7 1018.8 1021.3 1027.7 1014.4 1996 1027.3 1020.2 1017.0 1015.2 1011.3 1005.1 1005.2 1005.6 1007.4 1018.2 1026.1 1025.9 1015.4 1997 1022.3 1023.2 1015.6 1012.7 1011.7 1004.4 998.8 1003.7 1011.5 1016.2 1023.2 1023.4 1013.9 1998 1022.9 1021.8 1017.3 1013.3 1011.7 1006.9 1002.0 1006.1 1009.9 1018.5 1021.9 1026.4 1014.9 1999 1024.4 1019.5 1016.6 1014.0 1009.6 1003.5 1002.4 1004.9 1009.0 1016.1 1022.3 1028.5 1014.2 2000 1023.0 1022.2 1017.7 1012.3 1007.0 1004.0 1003.9 1005.3 1008.5 1018.6 1024.7 1024.3 1014.3 2001 1026.3 1021.7 1016.5 1011.8 1007.6 1003.1 1002.3 1005.7 1010.4 1016.7 1021.3 1025.2 1014.1 2002 1024.7 1021.5 1017.1 1011.8 1009.0 1004.2 1003.1 1001.6 1009.3 1015.3 1022.3 1023.6 1013.6 2003 1022.8 1018.0 1016.8 1013.3 1011.9 1003.4 997.6 1004.7 1010.1 1014.8 1023.4 1026.4 1013.6 2004 1020.2 1019.6 1018.0 1013.1 1008.0 1003.5 1003.1 1002.3 1011.6 1018.9 1020.0 1024.7 1013.6 2005 1023.1 1020.9 1014.8 1015.0 1010.1 1003.4 1000.3 1003.1 1007.8 1017.1 1022.6 1024.5 1013.6 MEAN 1024.3 1021.5 1017.2 1013.5 1010.3 1004.2 1002.0 1004.5 1010.4 1018.1 1022.5 1025.0 1014.5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 86 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFF PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1029.7 1023.7 1018.8 1012.4 1009.1 1011.7 1019.3 1025.5 1030.6 1038.4 ****** DAY ** ** 17 5 18 2 22 31 22 15 16 7 1987 1035.6 1031.7 1025.6 1023.3 1018.6 1010.8 1011.3 1011.9 1018.9 1030.8 1040.1 1039.5 1040.1 DAY 12 12 23 22 1 28 29 8 24 28 30 1 1988 1036.4 1036.2 1025.6 1028.4 1017.1 1009.1 1006.3 1009.0 1017.5 1027.1 1029.5 1034.3 1036.4 DAY 3 7 17 9 5 8 30 21 30 16 15 30 1989 1034.8 1038.8 1022.9 1023.1 1020.4 1008.5 1007.9 1011.2 1023.3 1026.4 1028.9 1028.0 1038.8 DAY 30 4 6 2 1 2 21 20 23 25 22 18 1990 1036.4 1032.0 1032.9 1019.0 1017.5 1014.7 1006.9 1008.1 1013.5 1030.1 1032.7 1038.8 1038.8 DAY 26 8 21 3 15 1 9 29 27 19 23 28 1991 1033.6 1038.1 1027.6 1021.5 1018.4 1010.8 1006.1 1008.7 1020.6 1023.0 1030.8 1034.5 1038.1 DAY 12 15 12 14 25 23 12 27 27 17 27 17 1992 1037.3 1030.0 1036.4 1019.2 1023.0 1010.6 1008.0 1017.3 1019.1 1024.3 1031.2 1032.5 1037.3 DAY 10 16 12 8 2 11 14 31 30 30 4 29 1993 1034.2 1030.6 1027.8 1021.1 1020.9 1016.3 1009.6 1011.1 1016.7 1027.7 1032.4 1032.5 1034.2 DAY 6 9 23 1 9 23 27 25 16 8 30 7 1994 1034.7 1032.1 1023.8 1032.1 1017.8 1009.3 1006.4 1007.6 1024.7 1026.4 1025.4 1036.0 1036.0 DAY 10 19 17 5 17 9 2 22 23 10 10 7 1995 1033.7 1027.1 1028.2 1019.9 1017.9 1014.2 1003.2 1008.7 1020.2 1029.9 1030.7 1031.5 1033.7 DAY 7 12 3 7 29 1 4 25 22 26 28 10 1996 1035.0 1027.4 1022.5 1026.2 1017.5 1010.9 1010.0 1014.6 1017.4 1027.5 1038.8 1034.9 1038.8 DAY 26 13 1 4 7 27 4 30 25 19 18 3 1997 1032.3 1033.0 1030.5 1022.3 1019.4 1008.6 1003.6 1009.8 1018.6 1022.1 1032.9 1033.6 1033.6 DAY 19 7 11 12 7 7 9 28 15 9 8 28 1998 1032.5 1036.9 1025.0 1023.0 1021.9 1012.4 1011.4 1010.0 1015.7 1026.8 1028.8 1033.8 1036.9 DAY 4 23 4 7 4 17 21 9 12 10 21 29 1999 1037.6 1027.9 1027.1 1021.3 1015.7 1010.0 1008.3 1012.2 1018.3 1024.7 1034.5 1036.6 1037.6 DAY 2 12 19 11 2 8 27 20 29 27 30 6 2000 1032.0 1031.8 1025.8 1019.9 1011.0 1012.1 1011.3 1010.4 1014.9 1026.2 1036.1 1032.1 1036.1 DAY 31 11 1 2 5 14 31 23 30 16 17 4 2001 1033.8 1031.4 1026.8 1020.5 1012.3 1013.1 1008.3 1011.8 1020.8 1024.9 1032.4 1031.0 1033.8 DAY 30 10 12 2 5 13 29 14 22 10 20 22 2002 1033.8 1032.6 1033.7 1022.0 1016.1 1012.9 1009.0 1008.5 1015.4 1019.2 1032.6 1033.0 1033.8 DAY 26 19 11 1 17 25 2 31 30 11 18 5 2003 1028.5 1025.2 1032.6 1019.6 1023.2 1011.2 1005.1 1008.8 1020.0 1020.9 1037.2 1038.4 1038.4 DAY 23 12 2 3 2 7 4 30 27 15 25 12 2004 1028.7 1026.7 1027.1 1020.4 1013.8 1012.7 1009.1 1008.3 1020.0 1026.0 1029.6 1036.6 1036.6 DAY 1 8 9 6 18 6 18 30 30 27 29 4 2005 1031.2 1031.2 1023.8 1030.5 1014.8 1010.7 1006.6 1007.9 1011.0 1027.1 1028.6 1035.9 1035.9 DAY 13 15 27 6 12 9 28 27 22 24 25 31 1986-2005 1037.6 1038.8 1036.4 1032.1 1023.2 1016.3 1011.4 1017.3 1024.7 1030.8 1040.1 1039.5 1040.1 YEAR-DAY 99- 2 89- 4 92-12 94- 5 3- 2 93-23 98-21 92-31 94-23 87-28 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 87 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFF PRESSURE IN HPA AT 0600 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1008.0 1009.5 1004.9 998.0 997.9 1003.6 1010.2 1012.2 1012.0 1015.2 ****** DAY ** ** 8 30 31 28 20 15 25 1 8 20 1987 1018.1 1013.6 1004.4 1005.2 1004.4 1001.2 997.5 1000.6 1005.6 1008.7 1011.0 1014.4 997.5 DAY 3 10 14 19 23 18 3 15 6 4 7 24 1988 1014.0 1007.4 1004.9 1005.2 1003.0 997.5 996.5 997.4 1004.8 1010.9 1013.3 1005.1 996.5 DAY 29 2 21 25 28 30 8 30 4 7 11 27 1989 1014.7 1013.0 1005.0 1005.8 1004.0 997.8 997.5 997.6 1002.0 1009.8 1017.8 1014.9 997.5 DAY 17 23 29 29 31 30 1 2 12 2 20 5 1990 1016.1 1010.1 1013.5 1003.3 1001.0 993.9 997.5 999.7 1002.9 1009.8 1010.5 1015.4 993.9 DAY 23 16 25 29 12 27 28 8 5 1 1 25 1991 1013.0 1014.1 1008.4 1005.0 1001.0 994.6 995.8 997.4 1001.4 1013.7 1014.1 1014.3 994.6 DAY 26 4 7 10 28 12 14 6 8 4 5 1 1992 1015.3 1011.6 1005.5 1003.4 1008.1 995.8 996.8 998.9 1006.9 1012.8 1010.7 1018.9 995.8 DAY 3 25 31 18 19 27 10 1 18 5 25 4 1993 1016.0 1012.4 1011.9 1006.8 1005.8 1001.7 998.5 999.6 1003.9 1011.6 1007.9 1019.7 998.5 DAY 8 3 8 20 20 19 25 12 3 2 11 5 1994 1012.2 1007.6 1006.2 1007.0 1005.5 996.8 994.6 994.7 1005.7 1012.6 1009.5 1007.1 994.6 DAY 16 1 7 26 13 22 31 2 1 2 26 4 1995 1018.0 1007.3 1008.3 1005.9 1008.6 996.0 992.4 997.9 1001.3 1008.6 1011.0 1021.5 992.4 DAY 12 5 26 19 6 22 16 23 20 12 11 4 1996 1018.0 1012.1 1010.6 1005.8 1003.9 998.6 997.3 999.3 1002.0 1007.5 1018.0 1017.1 997.3 DAY 6 2 26 13 29 5 7 8 22 27 8 25 1997 1010.6 1013.6 1003.0 1005.3 1003.6 997.8 994.8 997.3 1003.0 1010.2 1018.1 1012.2 994.8 DAY 16 22 25 28 4 30 11 14 3 6 19 10 1998 1010.1 1007.9 1005.8 1005.2 1002.5 1001.2 993.9 1001.8 1002.9 1007.7 1015.1 1019.4 993.9 DAY 13 8 15 24 30 29 5 17 3 1 17 21 1999 1015.0 1007.9 1010.2 1004.7 999.1 992.5 997.6 1000.0 1001.8 1012.2 1011.4 1020.0 992.5 DAY 9 20 22 14 20 25 23 14 16 13 1 14 2000 1012.3 1009.9 1006.8 1006.7 1000.9 996.1 994.5 998.7 999.1 1011.3 1018.4 1015.1 994.5 DAY 21 7 24 10 26 24 11 31 1 1 3 15 2001 1020.0 1005.7 1001.5 1003.5 997.9 996.0 995.2 999.2 1002.9 1007.8 1005.8 1018.0 995.2 DAY 4 21 25 26 30 18 9 24 5 1 18 5 2002 1013.6 1009.8 1004.6 1005.7 1002.0 995.2 996.0 992.6 1005.4 1010.7 1009.8 1012.7 992.6 DAY 8 25 28 4 20 19 24 17 9 22 12 21 2003 1012.7 1007.7 1004.7 1005.6 1005.1 994.7 993.7 997.7 1001.6 1007.9 1014.0 1014.1 993.7 DAY 28 19 26 28 23 30 8 1 7 27 2 6 2004 1010.3 1006.1 1003.6 1004.5 995.2 998.3 997.1 996.8 1003.8 1011.3 1009.0 1016.1 995.2 DAY 27 15 31 17 13 18 10 4 11 3 23 16 2005 1010.1 1011.2 1003.0 1005.1 1002.6 995.0 992.0 995.0 1002.0 1008.0 1014.7 1013.9 992.0 DAY 23 2 24 30 3 20 6 7 5 20 6 24 1986-2005 1010.1 1005.7 1001.5 1003.3 995.2 992.5 992.0 992.6 999.1 1007.5 1005.8 1005.1 992.0 YEAR-DAY 98-13 1-21 1-25 90-29 4-13 99-25 5- 6 2-17 0- 1 96-27 1-18 88-27 5- 6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 88 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1013.3 1010.3 1002.3 1003.7 1006.8 1013.1 1017.3 1021.4 1024.9 ****** 1987 1024.8 1021.7 1013.6 1013.7 1009.9 1004.8 1003.6 1003.8 1010.5 1020.7 1022.6 1023.8 1014.5 1988 1022.8 1020.6 1013.3 1013.7 1008.5 1002.9 999.7 1002.3 1009.6 1017.5 1020.8 1021.4 1012.7 1989 1024.8 1026.9 1015.0 1014.1 1010.5 1002.8 1002.2 1003.5 1008.9 1016.9 1021.3 1021.2 1014.0 1990 1024.3 1019.5 1020.1 1011.5 1007.9 1002.6 1001.4 1002.8 1007.6 1017.2 1021.4 1023.8 1013.3 1991 1023.2 1023.2 1016.4 1012.6 ****** 1003.7 1000.0 1002.9 1010.5 1017.6 1022.4 1022.1 ****** 1992 1024.4 1018.7 1019.4 1011.8 1012.2 1003.7 1000.7 1006.3 1012.1 1017.1 1021.4 1022.5 1014.2 1993 1025.6 1021.6 1018.3 1012.1 1010.3 1004.5 1003.1 1005.3 1009.1 1021.3 1022.2 1025.2 1014.9 1994 1022.4 1019.0 1015.7 1013.5 1009.8 1001.7 998.6 1000.9 1014.1 1019.2 1018.5 1025.5 1013.2 1995 1024.1 1020.0 1016.5 1011.8 1011.8 1004.0 997.5 1001.9 1008.7 1017.9 1020.4 1026.9 1013.5 1996 1026.4 1019.1 1016.0 1014.2 1010.2 1004.1 1004.2 1004.4 1006.5 1017.2 1025.3 1025.0 1014.4 1997 1021.5 1022.3 1014.7 1011.7 1010.7 1003.3 997.8 1002.7 1010.6 1015.2 1022.1 1022.4 1012.9 1998 1022.0 1020.8 1016.3 1012.3 1010.7 1005.8 1000.8 1004.9 1008.9 1017.5 1021.1 1025.7 1013.9 1999 1023.5 1018.6 1015.7 1013.1 1008.7 1002.6 1001.2 1003.8 1007.9 1015.2 1021.3 1027.5 1013.3 2000 1022.2 1021.3 1016.8 1011.4 1006.1 1003.1 1002.8 1004.2 1007.5 1017.6 1023.7 1023.3 1013.3 2001 1025.6 1020.8 1015.6 1010.8 1006.6 1002.0 1001.2 1004.5 1009.4 1015.8 1020.5 1024.1 1013.1 2002 1023.9 1020.7 1016.2 1010.8 1008.1 1003.6 1002.6 1001.6 1009.3 1015.2 1022.3 1023.6 1013.2 2003 1022.8 1017.9 1016.8 1013.3 1011.9 1003.3 997.6 1004.7 1010.0 1014.8 1023.1 1026.2 1013.5 2004 1020.1 1019.6 1017.9 1013.1 1008.0 1003.5 1003.1 1002.3 1011.6 1018.9 1020.0 1024.7 1013.6 2005 1023.1 1021.0 1014.8 1015.0 1010.1 1003.4 1000.4 1003.1 1007.8 1017.1 1022.6 1024.5 1013.6 MEAN 1023.5 1020.7 1016.3 1012.7 1009.6 1003.4 1001.1 1003.6 1009.7 1017.4 1021.7 1024.2 1013.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 89 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1022.5 1017.9 1011.4 1008.1 1010.5 1018.2 1024.4 1029.6 1037.6 ****** DAY ** ** ** 5 18 2 22 31 22 15 16 7 1987 1034.8 1030.7 1024.8 1022.5 1017.5 1009.6 1010.0 1010.7 1017.8 1029.1 1039.3 1038.7 1039.3 DAY 12 12 23 22 1 28 29 8 24 28 30 1 1988 1035.5 1035.5 1024.6 1027.4 1016.1 1008.3 1005.1 1007.7 1016.4 1025.9 1028.9 1033.5 1035.5 DAY 3 7 17 9 5 8 30 21 30 16 16 30 1989 1034.0 1038.1 1021.5 1022.1 1019.6 1007.7 1006.8 1010.1 1022.4 1025.6 1028.0 1027.0 1038.1 DAY 30 4 7 2 1 2 21 20 23 25 22 18 1990 1035.6 1031.1 1032.1 1017.8 1016.6 1011.8 1005.9 1008.5 1012.5 1029.2 1031.7 1039.2 1039.2 DAY 26 8 21 3 15 1 9 29 27 19 23 28 1991 1032.7 1037.4 1026.8 1020.5 ****** 1009.6 1005.1 1007.6 1019.6 1021.8 1029.9 1033.0 ****** DAY 12 15 12 14 ** 23 12 27 27 13 27 17 1992 1037.1 1029.2 1035.6 1018.1 1022.0 1009.3 1005.3 1016.3 1017.9 1023.5 1030.1 1031.7 1037.1 DAY 10 16 12 8 2 7 12 31 30 30 4 29 1993 1033.3 1029.6 1027.1 1020.3 1019.9 1015.1 1008.3 1009.9 1016.7 1026.8 1031.6 1031.6 1033.3 DAY 6 9 23 1 9 23 27 25 23 8 30 7 1994 1033.8 1031.4 1022.9 1031.1 1016.1 1008.4 1005.3 1006.4 1023.8 1025.5 1024.4 1035.9 1035.9 DAY 10 19 17 5 18 9 2 22 23 10 10 8 1995 1032.9 1026.2 1027.3 1019.1 1016.5 1013.0 1002.2 1007.4 1019.2 1028.8 1029.9 1030.6 1032.9 DAY 7 12 3 7 29 1 4 25 22 26 28 11 1996 1034.2 1026.4 1021.5 1025.2 1016.4 1009.9 1008.8 1013.5 1016.3 1026.2 1037.8 1034.2 1037.8 DAY 26 13 1 4 7 12 4 30 25 19 18 3 1997 1031.5 1032.3 1030.5 1021.5 1018.5 1007.7 1002.6 1007.9 1017.7 1021.2 1031.8 1032.8 1032.8 DAY 19 7 11 12 7 7 9 28 15 9 8 28 1998 1031.5 1036.1 1024.2 1022.0 1020.8 1011.4 1009.9 1008.6 1014.6 1025.6 1027.9 1032.9 1036.1 DAY 4 23 4 7 4 17 21 9 12 10 21 29 1999 1036.8 1026.9 1026.2 1020.4 1014.8 1008.8 1006.6 1011.1 1017.2 1023.6 1033.6 1035.8 1036.8 DAY 2 12 19 11 2 8 28 20 29 27 30 6 2000 1031.2 1031.0 1024.5 1019.0 1010.2 1011.4 1010.2 1009.1 1013.8 1025.1 1035.1 1031.0 1035.1 DAY 31 11 16 2 11 14 31 23 30 16 17 4 2001 1033.3 1031.5 1025.9 1019.6 1011.3 1011.4 1007.1 1010.8 1019.8 1023.9 1031.5 1030.1 1033.3 DAY 29 9 12 2 19 2 29 14 22 10 20 22 2002 1033.0 1031.7 1032.9 1021.1 1015.0 1011.9 1008.4 1008.4 1015.4 1019.1 1032.6 1033.0 1033.0 DAY 26 19 11 1 14 25 29 31 30 11 18 5 2003 1028.4 1025.2 1032.5 1019.6 1023.2 1011.2 1005.1 1008.8 1019.9 1020.9 1036.4 1038.4 1038.4 DAY 23 12 2 3 2 7 4 30 27 15 25 12 2004 1028.7 1026.6 1027.1 1020.4 1013.7 1012.7 1009.1 1008.3 1020.0 1026.1 1029.6 1036.7 1036.7 DAY 1 8 9 6 18 6 18 30 30 27 29 4 2005 1031.2 1031.2 1023.8 1030.4 1014.3 1010.7 1006.6 1007.9 1010.8 1027.1 1028.6 1035.9 1035.9 DAY 13 15 27 6 12 9 28 27 9 24 25 31 1986-2005 1037.1 1038.1 1035.6 1031.1 1023.2 1015.1 1010.2 1016.3 1023.8 1029.2 1039.3 1039.2 1039.3 YEAR-DAY 92-10 89- 4 92-12 94- 5 3- 2 93-23 0-31 92-31 94-23 90-19 87-30 90-28 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 90 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1008.5 1003.7 997.1 996.9 1002.6 1009.2 1011.3 1011.0 1014.2 ****** DAY ** ** ** 30 31 28 20 15 25 1 8 20 1987 1017.2 1012.6 1003.3 1004.3 1003.5 1000.3 996.6 999.6 1004.7 1007.7 1009.9 1013.3 996.6 DAY 3 10 14 19 23 18 3 15 6 4 7 24 1988 1012.9 1006.3 1002.0 1003.1 1002.0 996.4 995.2 996.5 1003.7 1010.1 1012.4 1004.3 995.2 DAY 29 2 21 25 28 30 18 30 4 7 11 27 1989 1013.8 1012.0 1003.8 1004.9 1003.0 996.9 996.5 996.8 1001.3 1008.7 1016.7 1013.8 996.5 DAY 17 23 29 29 31 30 1 2 12 2 16 5 1990 1015.1 1008.9 1012.7 1002.4 1000.1 993.1 996.4 997.9 1001.8 1008.7 1009.5 1014.4 993.1 DAY 1 16 25 29 12 27 28 20 5 1 1 25 1991 1012.9 1012.3 1007.3 1003.9 ****** 994.4 994.7 996.5 1000.7 1012.6 1013.2 1013.6 ****** DAY 25 21 7 10 ** 12 14 6 8 4 5 1 1992 1014.4 1010.6 1004.4 1002.4 1006.9 994.9 996.6 998.1 1006.1 1012.0 1009.8 1017.8 994.9 DAY 3 25 31 18 19 27 18 1 18 5 25 4 1993 1014.9 1011.1 1010.8 1005.7 1004.9 1000.3 998.7 998.8 1002.8 1010.8 1006.8 1018.6 998.7 DAY 8 3 8 20 20 19 15 12 3 2 11 5 1994 1011.0 1006.6 1005.1 1006.0 1004.7 995.8 993.6 993.8 1004.6 1011.6 1008.4 1006.2 993.6 DAY 16 1 7 26 13 22 31 2 1 2 26 4 1995 1017.2 1006.4 1007.4 1004.8 1007.5 994.8 991.5 997.0 1000.5 1007.6 1010.1 1020.8 991.5 DAY 12 5 26 19 6 22 16 23 20 12 11 4 1996 1016.8 1010.9 1009.7 1004.8 1002.9 997.7 996.5 998.3 1001.1 1006.7 1016.9 1016.1 996.5 DAY 6 2 26 13 29 5 7 8 8 27 8 25 1997 1009.6 1012.7 1002.0 1004.6 1002.8 997.0 992.5 996.5 1002.0 1009.3 1016.7 1011.0 992.5 DAY 16 22 25 28 4 30 16 14 3 6 5 10 1998 1009.2 1006.4 1004.8 1004.4 1001.6 1000.2 993.0 1000.6 1002.1 1006.8 1014.7 1018.4 993.0 DAY 13 8 15 22 30 29 5 21 3 1 1 21 1999 1013.9 1007.0 1009.6 1003.9 998.3 991.7 996.5 999.1 1000.8 1011.3 1010.3 1018.9 991.7 DAY 9 20 22 14 20 25 23 14 16 13 1 14 2000 1011.4 1008.9 1005.8 1005.7 1000.0 995.3 993.7 997.7 997.9 1010.3 1017.4 1014.0 993.7 DAY 21 7 24 10 26 24 11 31 1 1 3 15 2001 1019.0 1004.8 1000.6 1002.6 997.0 995.0 994.3 998.3 1001.8 1007.0 1004.9 1017.0 994.3 DAY 4 21 25 26 30 18 10 24 5 1 18 5 2002 1012.5 1008.8 1003.7 1004.7 1001.1 994.8 996.0 995.2 1005.4 1010.7 1009.7 1012.6 994.8 DAY 8 25 28 4 20 20 24 17 9 22 12 21 2003 1012.7 1007.7 1004.6 1005.6 1005.0 994.7 994.0 997.8 1001.6 1007.9 1014.0 1014.1 994.0 DAY 28 19 26 28 23 30 8 1 7 27 2 6 2004 1010.2 1006.1 1003.7 1004.6 995.1 998.3 997.1 996.7 1003.8 1011.3 1009.0 1016.1 995.1 DAY 27 15 31 17 13 18 10 4 11 3 23 16 2005 1010.1 1011.2 1003.0 1005.2 1002.6 994.9 991.9 994.9 1001.9 1008.1 1014.6 1014.0 991.9 DAY 23 2 24 30 3 20 6 7 5 20 6 24 1986-2005 1009.2 1004.8 1000.6 1002.4 995.1 991.7 991.5 993.8 997.9 1006.7 1004.9 1004.3 991.5 YEAR-DAY 98-13 1-21 1-25 90-29 4-13 99-25 95-16 94- 2 0- 1 96-27 1-18 88-27 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 91 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFE PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 916.4 914.1 913.0 907.3 909.7 911.6 915.8 917.8 918.3 919.2 ****** 1987 919.6 918.1 912.1 914.0 913.4 909.9 909.2 909.1 913.5 919.9 920.0 919.0 914.8 1988 918.0 916.7 912.1 914.1 911.7 908.0 905.9 907.8 912.7 917.5 917.8 916.8 913.3 1989 918.4 920.6 913.6 915.2 913.2 908.3 908.5 909.0 911.9 917.2 918.6 917.0 914.3 1990 918.8 915.5 917.7 911.9 911.2 908.0 907.4 908.6 911.3 917.3 918.9 918.8 913.8 1991 918.2 918.6 914.7 913.7 910.0 908.8 906.4 908.3 913.6 918.0 919.5 916.9 913.9 1992 918.1 914.2 916.0 912.3 913.9 908.5 907.1 911.0 914.3 916.8 918.5 917.8 914.0 1993 919.3 917.5 915.9 913.1 912.9 909.4 909.0 910.7 912.4 920.5 918.9 920.5 915.0 1994 918.1 915.3 914.7 914.6 912.6 906.8 905.0 906.8 916.5 919.3 916.5 919.9 913.8 1995 919.2 916.6 915.1 912.9 914.3 908.8 904.5 908.0 912.0 917.4 917.4 920.8 913.9 1996 920.4 916.0 913.9 914.6 913.2 909.2 910.1 910.0 910.4 917.0 921.7 920.5 914.7 1997 916.6 917.3 912.3 912.3 913.5 908.8 905.0 908.4 913.4 916.1 919.2 918.0 913.4 1998 916.8 916.8 914.5 913.4 913.5 911.1 907.2 910.6 912.4 917.6 919.0 921.1 914.5 1999 919.1 915.7 914.3 913.8 912.0 908.0 907.1 909.7 911.5 916.2 918.5 922.6 914.0 2000 917.0 917.2 914.8 913.3 909.9 908.2 909.0 909.7 911.4 917.6 920.8 919.1 914.0 2001 920.3 917.1 914.8 912.7 910.3 907.6 907.5 910.2 913.1 916.5 918.0 919.9 914.0 2002 918.9 917.6 914.9 911.8 911.1 908.8 908.8 907.8 913.4 916.6 920.0 918.8 914.0 2003 918.3 914.6 915.0 914.5 914.4 908.7 905.1 910.4 913.4 916.2 920.1 921.6 914.4 2004 916.3 916.8 917.4 913.9 911.3 909.4 909.2 908.6 915.0 919.2 918.0 919.5 914.6 2005 918.2 917.0 914.0 916.3 913.1 909.0 907.7 909.3 911.8 917.7 920.0 920.2 914.5 MEAN 918.4 916.8 914.7 913.6 912.4 908.6 907.5 909.3 913.0 917.6 919.0 919.4 914.2 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 92 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFE PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 922.6 922.3 919.2 915.1 912.8 914.6 920.1 923.9 924.6 928.8 ****** DAY ** ** 28 5 19 2 16 31 22 15 16 7 1987 928.0 925.3 920.2 921.5 918.3 914.0 913.3 915.8 918.8 925.9 932.4 931.0 932.4 DAY 12 12 23 22 1 28 11 8 24 28 30 1 1988 927.9 926.4 921.7 924.8 917.5 913.8 911.7 913.7 918.2 924.8 923.4 924.4 927.9 DAY 3 7 17 9 17 8 31 21 25 16 6 29 1989 925.6 928.8 919.7 920.1 917.1 911.5 912.9 914.4 922.4 924.1 923.7 922.2 928.8 DAY 27 4 8 2 1 2 20 19 23 24 8 18 1990 927.4 925.4 926.3 917.6 918.0 914.2 911.4 912.2 915.6 926.3 927.0 929.0 929.0 DAY 26 8 10 24 16 1 17 29 24 19 22 28 1991 925.8 930.1 922.5 919.3 917.5 914.9 909.9 912.1 919.8 921.7 924.3 925.2 930.1 DAY 12 15 12 14 25 23 11 23 27 13 27 17 1992 928.5 922.1 927.8 916.4 921.0 914.0 910.4 918.0 918.7 921.5 926.6 922.0 928.5 DAY 10 16 12 8 2 11 14 31 1 30 4 29 1993 927.8 924.6 922.2 918.4 919.6 917.5 914.0 914.0 918.3 925.5 926.0 925.0 927.8 DAY 6 9 23 1 9 23 27 25 23 17 21 26 1994 926.8 924.5 920.2 928.0 917.5 912.4 909.3 911.0 923.6 924.2 923.3 927.0 928.0 DAY 10 18 18 5 18 8 13 15 23 23 2 7 1995 927.3 921.3 924.0 917.5 919.4 915.2 908.1 912.4 918.0 925.8 924.2 926.1 927.3 DAY 7 12 3 7 26 1 4 25 22 25 16 10 1996 926.4 922.3 917.0 922.2 917.5 913.1 914.5 917.0 919.0 924.1 931.5 927.0 931.5 DAY 10 13 29 5 7 12 4 29 25 19 18 7 1997 924.3 924.5 925.5 918.7 920.0 912.5 909.4 912.5 918.4 921.5 928.6 926.1 928.6 DAY 19 7 11 13 12 8 19 28 15 9 8 28 1998 924.6 929.5 920.6 923.2 920.9 916.2 914.4 914.2 917.4 925.0 925.2 926.5 929.5 DAY 4 23 27 12 4 6 20 9 12 10 21 9 1999 930.8 923.0 921.9 919.0 917.5 913.3 911.3 915.7 918.1 922.1 927.0 928.9 930.8 DAY 2 12 19 11 28 8 19 20 30 26 30 6 2000 924.4 924.0 920.7 918.6 914.1 914.3 915.7 913.8 917.8 923.6 929.8 926.0 929.8 DAY 31 11 27 2 5 16 30 20 29 16 17 4 2001 924.3 926.8 923.4 920.6 913.7 915.0 913.1 915.0 920.5 924.5 925.0 924.4 926.8 DAY 29 9 1 2 19 2 29 14 22 10 20 9 2002 926.0 925.1 927.7 920.0 916.5 916.1 913.6 913.5 918.0 921.1 928.3 928.5 928.5 DAY 26 6 11 1 17 25 30 31 30 10 18 3 2003 923.4 921.2 926.6 919.1 922.4 913.7 911.4 913.8 921.0 921.2 929.7 930.9 930.9 DAY 31 12 2 3 2 7 3 30 27 15 25 12 2004 922.6 923.1 924.8 920.1 917.0 916.8 914.6 913.4 920.5 925.0 923.8 930.2 930.2 DAY 12 8 9 12 22 6 18 30 30 27 29 3 2005 925.9 925.3 919.9 926.7 917.7 913.7 912.6 913.2 914.8 923.8 924.2 928.8 928.8 DAY 8 15 27 6 18 10 28 16 9 24 27 29 1986-2005 930.8 930.1 927.8 928.0 922.4 917.5 915.7 918.0 923.6 926.3 932.4 931.0 932.4 YEAR-DAY 99- 2 91-15 92-12 94- 5 3- 2 93-23 0-30 92-31 94-23 90-19 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 93 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFE PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 908.9 909.9 908.1 902.7 904.0 908.1 912.6 912.2 910.2 909.0 ****** DAY ** ** 8 30 10 28 20 15 6 1 8 20 1987 911.9 909.7 903.3 906.7 908.5 906.6 902.5 905.0 909.1 910.6 908.8 912.0 902.5 DAY 6 10 14 4 22 18 3 25 6 4 7 30 1988 910.9 904.9 905.2 906.7 907.0 901.7 902.2 903.6 908.1 911.1 911.2 902.1 901.7 DAY 29 2 21 23 28 30 18 30 12 30 28 27 1989 910.2 910.8 902.4 908.5 906.5 902.4 903.7 902.2 906.0 910.5 914.4 911.7 902.2 DAY 17 23 29 29 31 10 6 1 11 1 16 5 1990 911.5 907.5 910.7 904.4 902.9 901.5 903.6 904.2 908.0 910.0 910.8 912.1 901.5 DAY 23 16 14 15 12 27 2 7 1 14 1 25 1991 909.0 911.3 905.1 906.6 904.4 901.2 901.8 903.9 906.0 913.8 912.4 910.4 901.2 DAY 25 20 6 10 22 11 14 12 8 4 4 1 1992 911.6 906.7 904.5 905.5 908.4 902.4 903.0 904.0 910.0 912.7 907.9 912.9 902.4 DAY 2 24 31 18 4 27 10 1 17 5 25 27 1993 911.0 908.2 908.6 908.4 908.7 905.2 904.6 905.4 907.6 912.6 906.5 913.5 904.6 DAY 8 3 8 13 31 3 12 12 3 2 11 5 1994 907.6 907.7 904.4 906.3 907.3 902.4 901.3 901.1 909.7 913.5 909.0 905.5 901.1 DAY 16 12 7 2 1 22 20 2 1 2 26 4 1995 913.6 905.5 907.0 907.8 911.0 901.9 899.4 903.9 905.0 909.7 909.5 916.7 899.4 DAY 12 5 17 16 5 22 16 22 20 12 11 4 1996 912.6 907.8 908.5 906.5 907.1 904.0 903.2 904.3 905.7 907.8 915.2 914.6 903.2 DAY 6 5 13 13 29 19 7 8 21 27 29 25 1997 906.9 910.6 902.8 905.0 906.0 904.0 900.2 903.0 906.9 911.4 915.2 910.0 900.2 DAY 17 27 29 10 4 24 16 14 2 6 5 9 1998 905.9 906.0 905.8 906.4 906.0 906.4 900.0 907.2 907.0 909.0 913.7 914.2 900.0 DAY 13 8 15 22 21 29 5 23 3 1 1 21 1999 910.7 906.7 908.9 905.5 902.7 898.9 903.7 905.5 906.1 913.0 910.1 914.4 898.9 DAY 9 20 21 8 20 25 22 14 16 31 1 15 2000 907.0 907.3 905.7 908.3 905.3 902.0 901.5 904.0 903.8 912.4 915.6 910.8 901.5 DAY 21 7 24 10 26 24 11 31 1 1 21 15 2001 915.0 902.6 902.9 905.6 903.5 901.4 902.0 904.1 906.9 912.1 905.6 913.4 901.4 DAY 19 21 25 26 30 18 10 27 5 1 18 5 2002 910.3 908.3 905.7 904.3 906.3 902.0 902.8 902.7 909.3 912.3 911.0 908.1 902.0 DAY 8 25 28 3 20 20 24 17 10 21 12 21 2003 907.4 905.2 902.8 909.2 909.0 902.4 901.7 905.6 906.8 910.2 913.0 911.7 901.7 DAY 28 19 26 27 23 30 30 1 7 27 14 6 2004 909.4 906.6 906.7 906.0 899.5 905.1 904.0 903.7 909.2 913.2 906.5 912.0 899.5 DAY 27 15 31 17 13 17 10 4 11 22 23 15 2005 906.2 910.6 903.4 908.9 905.7 901.1 900.3 903.2 906.7 909.6 915.2 911.9 900.3 DAY 23 2 24 30 3 20 6 7 5 20 8 26 1986-2005 905.9 902.6 902.4 904.3 899.5 898.9 899.4 901.1 903.8 907.8 905.6 902.1 898.9 YEAR-DAY 98-13 1-21 89-29 2- 3 4-13 99-25 95-16 94- 2 0- 1 96-27 1-18 88-27 99-25 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 94 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QNH PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1017.5 1015.1 1013.8 1007.6 1010.2 1012.3 1016.9 1019.1 1019.6 1020.6 ****** 1987 1021.0 1019.4 1012.9 1015.0 1014.3 1010.5 1009.7 1009.6 1014.4 1021.3 1021.5 1020.4 1015.8 1988 1019.2 1017.9 1012.9 1015.1 1012.4 1008.4 1006.1 1008.2 1013.5 1018.7 1019.1 1018.0 1014.1 1989 1019.7 1022.1 1014.5 1016.2 1014.1 1008.7 1008.9 1009.5 1012.7 1018.4 1019.9 1018.2 1015.2 1990 1020.1 1016.6 1018.9 1012.7 1011.8 1008.4 1007.8 1009.1 1012.0 1018.5 1020.3 1020.2 1014.7 1991 1019.5 1020.0 1015.7 1014.6 1010.6 1009.3 1006.6 1008.7 1014.5 1019.3 1020.9 1018.1 1014.8 1992 1019.4 1015.2 1017.1 1013.0 1014.8 1008.9 1007.4 1011.7 1015.2 1018.0 1019.9 1019.1 1015.0 1993 1020.7 1018.7 1017.0 1013.9 1013.7 1009.9 1009.5 1011.3 1013.2 1022.0 1020.3 1022.0 1016.0 1994 1019.4 1016.4 1015.7 1015.6 1013.4 1007.0 1005.2 1007.1 1017.7 1020.7 1017.7 1021.3 1014.8 1995 1020.6 1017.8 1016.1 1013.7 1015.3 1009.3 1004.5 1008.4 1012.8 1018.6 1018.7 1022.4 1014.8 1996 1021.9 1017.1 1014.8 1015.6 1014.1 1009.7 1010.7 1010.5 1011.0 1018.2 1023.3 1022.0 1015.7 1997 1017.8 1018.6 1013.1 1013.1 1014.4 1009.3 1005.1 1008.8 1014.3 1017.2 1020.6 1019.3 1014.3 1998 1017.9 1017.9 1015.5 1014.2 1014.4 1011.8 1007.6 1011.2 1013.1 1018.8 1020.3 1022.6 1015.5 1999 1020.5 1016.8 1015.3 1014.7 1012.7 1008.4 1007.4 1010.2 1012.3 1017.3 1019.9 1024.3 1015.0 2000 1018.2 1018.4 1015.8 1014.2 1010.5 1008.6 1009.5 1010.2 1012.1 1018.8 1022.4 1020.5 1014.9 2001 1021.8 1018.3 1015.8 1013.6 1010.9 1008.0 1007.8 1010.8 1014.0 1017.6 1019.3 1021.4 1014.9 2002 1020.2 1018.9 1016.0 1012.6 1011.7 1009.2 1009.3 1008.2 1014.3 1017.7 1021.5 1020.1 1015.0 2003 1019.7 1015.6 1016.0 1015.5 1015.4 1009.1 1005.3 1011.0 1014.2 1017.3 1021.6 1023.2 1015.3 2004 1017.4 1018.0 1018.6 1014.9 1012.0 1009.9 1009.7 1009.1 1016.0 1020.6 1019.3 1021.0 1015.5 2005 1019.5 1018.2 1014.9 1017.4 1013.9 1009.5 1008.1 1009.8 1012.5 1019.0 1021.5 1021.6 1015.5 MEAN 1019.7 1018.0 1015.7 1014.5 1013.2 1009.1 1007.8 1009.8 1013.8 1018.9 1020.4 1020.8 1015.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 95 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QNH PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1024.3 1024.0 1020.6 1016.1 1013.6 1015.6 1021.6 1025.7 1026.5 1031.0 ****** DAY ** ** 28 5 19 2 16 31 22 15 16 7 1987 1030.2 1027.2 1021.7 1023.1 1019.6 1014.9 1014.2 1016.9 1020.2 1027.9 1035.0 1033.4 1035.0 DAY 12 12 23 22 1 28 11 8 24 28 30 1 1988 1030.1 1028.4 1023.3 1026.7 1018.7 1014.7 1012.4 1014.6 1019.5 1026.7 1025.2 1026.3 1030.1 DAY 3 7 17 9 17 8 31 21 25 16 6 29 1989 1027.6 1031.0 1021.1 1021.6 1018.3 1012.2 1013.7 1015.4 1024.1 1025.9 1025.5 1023.9 1031.0 DAY 27 4 8 2 1 2 20 19 23 24 8 18 1990 1029.5 1027.3 1028.3 1018.9 1019.3 1015.2 1012.1 1013.0 1016.7 1028.3 1029.1 1031.3 1031.3 DAY 26 8 10 24 16 1 17 29 24 19 22 28 1991 1027.8 1032.5 1024.2 1020.7 1018.7 1015.9 1010.5 1012.9 1021.2 1023.3 1026.1 1027.1 1032.5 DAY 12 15 12 14 25 23 11 23 27 13 27 17 1992 1030.7 1023.8 1030.0 1017.5 1022.6 1014.9 1011.0 1019.3 1020.1 1023.1 1028.6 1023.6 1030.7 DAY 10 16 12 8 2 11 14 31 1 30 4 29 1993 1030.0 1026.5 1023.9 1019.7 1021.0 1018.7 1014.9 1014.9 1019.6 1027.5 1028.0 1026.9 1030.0 DAY 6 9 23 1 9 23 27 25 23 17 21 26 1994 1028.9 1026.4 1021.7 1030.2 1018.7 1013.2 1009.8 1011.7 1025.4 1026.0 1025.1 1029.1 1030.2 DAY 10 18 18 5 18 8 13 15 23 23 2 7 1995 1029.4 1022.9 1025.8 1018.7 1020.8 1016.2 1008.5 1013.2 1019.3 1027.8 1026.0 1028.1 1029.4 DAY 7 12 3 7 26 1 4 25 22 25 16 10 1996 1028.4 1024.0 1018.2 1023.9 1018.7 1014.0 1015.5 1018.2 1020.4 1025.9 1034.0 1029.1 1034.0 DAY 10 13 29 5 7 12 4 29 25 19 18 7 1997 1026.1 1026.4 1027.5 1020.1 1021.5 1013.3 1009.9 1013.3 1019.7 1023.1 1030.8 1028.1 1030.8 DAY 19 7 11 13 12 8 19 28 15 9 8 28 1998 1026.5 1031.8 1022.1 1024.9 1022.4 1017.3 1015.4 1015.2 1018.6 1026.9 1027.1 1028.5 1031.8 DAY 4 23 27 12 4 6 20 9 12 10 21 9 1999 1033.2 1024.7 1023.5 1020.4 1018.7 1014.2 1012.0 1016.8 1019.4 1023.8 1029.1 1031.2 1033.2 DAY 2 12 19 11 28 8 19 20 30 26 30 6 2000 1026.3 1025.8 1022.2 1019.9 1015.0 1015.3 1016.8 1014.7 1019.1 1025.4 1032.1 1028.0 1032.1 DAY 31 11 27 2 5 16 30 20 29 16 17 4 2001 1026.1 1028.9 1025.2 1022.1 1014.6 1016.0 1014.0 1016.0 1022.0 1026.4 1026.9 1026.3 1028.9 DAY 29 9 1 2 19 2 29 14 22 10 20 9 2002 1028.0 1027.0 1029.8 1021.5 1017.7 1017.2 1014.5 1014.4 1019.3 1022.7 1030.5 1030.7 1030.7 DAY 26 6 11 1 17 25 30 31 30 10 18 3 2003 1025.2 1022.8 1028.6 1020.5 1024.1 1014.6 1012.1 1014.7 1022.6 1022.8 1032.0 1033.3 1033.3 DAY 31 12 2 3 2 7 3 30 27 15 25 12 2004 1024.3 1024.8 1026.7 1021.6 1018.2 1018.0 1015.6 1014.3 1022.0 1026.9 1025.6 1032.6 1032.6 DAY 12 8 9 12 22 6 18 30 30 27 29 3 2005 1027.9 1027.2 1021.4 1028.8 1019.0 1014.6 1013.4 1014.1 1015.8 1025.6 1026.0 1031.0 1031.0 DAY 8 15 27 6 18 10 28 16 9 24 27 29 1986-2005 1033.2 1032.5 1030.0 1030.2 1024.1 1018.7 1016.8 1019.3 1025.4 1028.3 1035.0 1033.4 1035.0 YEAR-DAY 99- 2 91-15 92-12 94- 5 3- 2 93-23 0-30 92-31 94-23 90-19 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 96 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QNH PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1009.4 1010.5 1008.5 1002.6 1004.0 1008.5 1013.4 1013.0 1010.8 1009.5 ****** DAY ** ** 8 30 10 28 20 15 6 1 8 20 1987 1012.6 1010.2 1003.3 1007.0 1008.9 1006.9 1002.4 1005.1 1009.6 1011.2 1009.3 1012.8 1002.4 DAY 6 10 14 4 22 18 3 25 6 4 7 30 1988 1011.6 1005.0 1005.4 1007.0 1007.3 1001.5 1002.1 1003.6 1008.5 1011.8 1011.9 1002.0 1001.5 DAY 29 2 21 23 28 30 18 30 12 30 28 27 1989 1010.8 1011.5 1002.3 1008.9 1006.8 1002.3 1003.7 1002.1 1006.2 1011.1 1015.4 1012.4 1002.1 DAY 17 23 29 29 31 10 6 1 11 1 16 5 1990 1012.2 1007.9 1011.3 1004.5 1002.8 1001.3 1003.6 1004.3 1008.4 1010.6 1011.5 1012.9 1001.3 DAY 23 16 14 15 12 27 2 7 1 14 1 25 1991 1009.5 1012.0 1005.2 1006.9 1004.5 1001.0 1001.6 1003.9 1006.2 1014.7 1013.2 1011.0 1001.0 DAY 25 20 6 10 22 11 14 12 8 4 4 1 1992 1012.3 1007.0 1004.6 1005.7 1008.8 1002.3 1003.0 1004.0 1010.6 1013.5 1008.3 1013.7 1002.3 DAY 2 24 31 18 4 27 10 1 17 5 25 27 1993 1011.7 1008.6 1009.1 1008.8 1009.2 1005.4 1004.7 1005.6 1008.0 1013.4 1006.8 1014.4 1004.7 DAY 8 3 8 13 31 3 12 12 3 2 11 5 1994 1008.0 1008.1 1004.5 1006.6 1007.6 1002.3 1001.1 1000.9 1010.2 1014.4 1009.5 1005.7 1000.9 DAY 16 12 7 2 1 22 20 2 1 2 26 4 1995 1014.5 1005.7 1007.3 1008.2 1011.7 1001.8 999.0 1003.9 1005.1 1010.2 1010.0 1017.9 999.0 DAY 12 5 17 16 5 22 16 22 20 12 11 4 1996 1013.4 1008.2 1008.9 1006.8 1007.4 1004.0 1003.2 1004.4 1005.9 1008.2 1016.2 1015.6 1003.2 DAY 6 5 13 13 29 19 7 8 21 27 29 25 1997 1007.2 1011.2 1002.7 1005.1 1006.2 1004.0 999.9 1003.0 1007.2 1012.1 1016.2 1010.6 999.9 DAY 17 27 29 10 4 24 16 14 2 6 5 9 1998 1006.1 1006.2 1006.0 1006.7 1006.2 1006.7 999.7 1007.5 1007.3 1009.5 1014.6 1015.2 999.7 DAY 13 8 15 22 21 29 5 23 3 1 1 21 1999 1011.3 1007.0 1009.4 1005.7 1002.6 998.5 1003.7 1005.7 1006.3 1013.8 1010.7 1015.4 998.5 DAY 9 20 21 8 20 25 22 14 16 31 1 15 2000 1007.3 1007.6 1005.9 1008.7 1005.5 1001.9 1001.3 1004.0 1003.8 1013.2 1016.7 1011.5 1001.3 DAY 21 7 24 10 26 24 11 31 1 1 21 15 2001 1016.0 1002.5 1002.8 1005.8 1003.5 1001.2 1001.9 1004.2 1007.2 1012.9 1005.8 1014.3 1001.2 DAY 19 21 25 26 30 18 10 27 5 1 18 5 2002 1010.9 1008.7 1005.9 1004.4 1006.6 1001.9 1002.7 1002.6 1009.8 1013.1 1011.7 1008.5 1001.9 DAY 8 25 28 3 20 20 24 17 10 21 12 21 2003 1007.7 1005.4 1002.7 1009.7 1009.5 1002.3 1001.5 1005.8 1007.1 1010.8 1013.8 1012.4 1001.5 DAY 28 19 26 27 23 30 30 1 7 27 14 6 2004 1009.9 1006.9 1007.0 1006.2 999.1 1005.2 1004.0 1003.7 1009.7 1014.1 1006.8 1012.8 999.1 DAY 27 15 31 17 13 17 10 4 11 22 23 15 2005 1006.4 1011.2 1003.4 1009.4 1005.9 1000.9 1000.0 1003.2 1007.0 1010.1 1016.2 1012.6 1000.0 DAY 23 2 24 30 3 20 6 7 5 20 8 26 1986-2005 1006.1 1002.5 1002.3 1004.4 999.1 998.5 999.0 1000.9 1003.8 1008.2 1005.8 1002.0 998.5 YEAR-DAY 98-13 1-21 89-29 2- 3 4-13 99-25 95-16 94- 2 0- 1 96-27 1-18 88-27 99-25 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 97 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFF PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1018.7 1012.6 1009.9 1001.4 1003.2 1006.0 1012.2 1015.9 1020.0 1023.6 ****** 1987 1023.1 1020.7 1013.1 1012.5 1009.5 1003.8 1003.0 1002.7 1009.2 1020.2 1021.3 1022.3 1013.4 1988 1021.9 1019.7 1012.6 1012.9 1007.5 1002.0 998.9 1001.2 1008.5 1016.0 1018.8 1019.8 1011.7 1989 1023.7 1026.2 1014.4 1013.1 1009.6 1002.0 1001.5 1002.5 1007.6 1015.2 1019.4 1019.7 1012.9 1990 1023.5 1018.8 1019.0 1010.2 1006.9 1001.6 1000.6 1002.2 1006.6 1015.7 1019.6 1022.4 1012.3 1991 1022.3 1022.8 1015.8 1011.7 1006.3 1003.0 999.2 1002.2 1009.4 1016.4 1020.9 1020.8 1012.6 1992 1023.2 1017.5 1018.9 1011.1 1011.9 1002.9 1000.0 1005.6 1011.0 1015.5 1019.7 1021.5 1013.2 1993 1024.6 1021.0 1017.6 1011.5 1009.6 1003.8 1002.6 1004.7 1007.9 1020.1 1021.3 1023.9 1014.0 1994 1021.4 1018.2 1015.0 1012.7 1009.0 1000.6 997.9 1000.0 1013.3 1018.2 1017.3 1024.3 1012.3 1995 1022.5 1018.9 1015.5 1011.1 1011.0 1003.3 997.0 1001.2 1007.8 1016.2 1018.4 1025.3 1012.4 1996 1025.5 1018.8 1015.7 1013.7 1009.5 1003.2 1004.0 1003.7 1005.2 1015.6 1023.9 1023.6 1013.5 1997 1019.7 1020.9 1013.5 1010.6 1009.7 1002.6 997.2 1001.6 1009.1 1013.6 1020.7 1021.2 1011.7 1998 1021.1 1019.8 1015.3 1011.3 1010.0 1005.0 1000.0 1004.3 1007.6 1016.1 1019.5 1023.9 1012.8 1999 1022.8 1017.7 1015.1 1012.1 1007.6 1001.6 1000.4 1003.0 1006.9 1013.9 1020.2 1026.2 1012.3 2000 1020.9 1020.3 1015.7 1010.3 1005.0 1002.3 1002.3 1003.4 1006.5 1016.6 1022.9 1022.7 1012.4 2001 1024.7 1020.0 1014.6 1009.8 1005.8 1001.5 1000.6 1003.9 1008.5 1014.6 1019.0 1022.8 1012.2 2002 1022.7 1019.5 1014.9 1010.4 1007.3 1002.5 1001.5 1000.0 1007.6 1012.9 1020.4 1021.9 1011.8 2003 1020.8 1016.3 1015.3 1012.0 1010.5 1002.0 996.3 1003.2 1008.4 1012.6 1021.3 1024.6 1011.9 2004 1018.6 1017.7 1016.5 1011.8 1006.8 1002.0 1001.8 1000.8 1009.7 1016.8 1018.0 1022.8 1011.9 2005 1021.4 1019.8 1013.2 1013.7 1008.5 1002.1 999.4 1001.9 1006.0 1014.9 1020.8 1022.0 1012.0 MEAN 1022.3 1019.7 1015.5 1011.8 1008.6 1002.5 1000.4 1002.7 1008.5 1015.8 1020.2 1022.8 1012.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 98 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFF PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1028.1 1023.6 1017.1 1010.8 1007.7 1010.3 1017.1 1023.1 1028.0 1034.7 ****** DAY ** ** 16 5 18 2 22 31 22 15 16 7 1987 1033.0 1030.4 1023.3 1021.5 1015.4 1007.7 1009.1 1010.6 1016.5 1029.2 1038.2 1036.5 1038.2 DAY 21 12 23 22 1 1 29 8 25 28 30 1 1988 1034.4 1032.7 1023.4 1026.9 1015.0 1008.5 1004.9 1008.0 1015.9 1026.3 1026.1 1030.9 1034.4 DAY 3 7 17 9 5 8 31 21 25 16 15 29 1989 1033.3 1037.0 1022.6 1021.0 1016.4 1007.3 1006.2 1009.2 1021.2 1024.8 1025.9 1026.4 1037.0 DAY 31 4 3 2 1 3 25 19 23 24 22 18 1990 1034.3 1030.8 1030.2 1016.3 1015.9 1010.4 1004.4 1007.0 1012.2 1028.0 1029.5 1037.1 1037.1 DAY 26 8 17 3 15 1 17 29 24 19 22 28 1991 1031.3 1036.6 1026.7 1019.7 1016.9 1009.7 1004.1 1006.8 1018.5 1020.4 1027.6 1031.0 1036.6 DAY 12 15 12 14 25 23 11 23 30 13 27 17 1992 1035.5 1026.8 1034.8 1017.1 1023.5 1009.0 1005.2 1015.0 1016.7 1022.0 1028.6 1028.7 1035.5 DAY 10 16 12 3 2 11 13 31 30 30 4 29 1993 1033.0 1029.5 1026.4 1017.1 1019.2 1014.1 1008.0 1009.1 1015.0 1025.7 1030.7 1029.5 1033.0 DAY 6 9 23 1 9 23 27 25 23 9 30 7 1994 1032.4 1030.5 1021.8 1031.1 1015.6 1007.1 1003.9 1004.7 1022.4 1024.7 1023.0 1034.5 1034.5 DAY 10 19 3 5 18 9 2 22 23 10 1 7 1995 1031.8 1024.9 1026.8 1017.6 1017.7 1012.5 1001.5 1006.1 1016.3 1026.2 1028.3 1030.1 1031.8 DAY 7 13 3 7 29 1 4 25 22 25 28 10 1996 1032.1 1025.9 1021.1 1025.2 1015.4 1009.2 1008.1 1012.2 1016.2 1025.0 1036.7 1032.1 1036.7 DAY 26 13 1 5 7 12 4 29 25 19 19 8 1997 1029.4 1030.6 1029.4 1020.0 1017.1 1007.3 1001.9 1006.4 1016.2 1020.1 1030.5 1032.2 1032.2 DAY 19 7 11 12 7 1 19 25 15 9 8 29 1998 1030.2 1034.4 1022.8 1021.2 1020.9 1010.5 1008.5 1008.7 1014.6 1026.3 1027.0 1030.7 1034.4 DAY 4 23 4 12 4 17 20 9 12 10 25 29 1999 1036.2 1026.3 1025.9 1019.7 1013.0 1008.2 1006.1 1010.2 1016.5 1023.3 1032.5 1034.2 1036.2 DAY 2 12 19 11 23 8 28 20 29 26 30 6 2000 1029.7 1028.9 1023.3 1018.0 1009.5 1010.2 1009.9 1008.5 1014.5 1024.9 1034.2 1030.6 1034.2 DAY 31 10 16 2 5 16 30 20 29 16 17 4 2001 1031.6 1031.5 1025.5 1018.7 1010.3 1010.8 1007.1 1009.8 1018.4 1023.7 1030.0 1028.2 1031.6 DAY 30 9 1 2 5 12 29 14 22 10 20 22 2002 1031.7 1031.2 1031.1 1020.6 1013.9 1011.5 1007.2 1007.3 1014.2 1017.5 1030.6 1031.8 1031.8 DAY 26 19 11 1 17 25 2 31 30 10 18 4 2003 1026.7 1023.3 1031.3 1017.6 1021.1 1009.5 1003.7 1007.0 1018.4 1018.6 1034.8 1036.4 1036.4 DAY 23 6 2 3 2 7 3 30 27 15 25 12 2004 1025.8 1025.9 1025.3 1018.9 1014.3 1011.6 1008.2 1006.8 1017.7 1024.7 1027.4 1037.4 1037.4 DAY 1 8 9 6 4 6 18 30 30 27 29 3 2005 1030.3 1030.5 1022.0 1029.1 1013.1 1008.6 1005.6 1006.7 1009.3 1024.0 1026.9 1034.1 1034.1 DAY 8 15 27 6 18 9 28 31 9 24 27 29 1986-2005 1036.2 1037.0 1034.8 1031.1 1023.5 1014.1 1009.9 1015.0 1022.4 1029.2 1038.2 1037.4 1038.2 YEAR-DAY 99- 2 89- 4 92-12 94- 5 92- 2 93-23 0-30 92-31 94-23 87-28 87-30 4- 3 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 99 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFF PRESSURE IN HPA AT 0900 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1010.5 1007.5 1003.5 994.6 996.0 1002.5 1008.1 1008.7 1009.1 1012.0 ****** DAY ** ** 7 30 10 28 20 15 26 1 7 20 1987 1015.4 1011.4 1003.7 1004.9 1003.8 999.1 995.3 998.2 1003.4 1007.5 1006.7 1013.7 995.3 DAY 6 10 14 26 23 18 3 25 6 4 7 24 1988 1012.3 1004.6 1002.3 1002.2 1000.9 994.6 994.6 996.3 1002.6 1009.2 1011.3 1004.8 994.6 DAY 28 2 21 23 28 30 18 30 12 7 11 27 1989 1013.7 1012.8 1002.0 1004.1 1000.3 995.5 995.9 995.4 999.3 1007.4 1015.1 1013.4 995.4 DAY 17 23 29 29 31 10 6 1 11 1 20 5 1990 1014.3 1008.5 1009.3 1000.6 999.6 992.9 995.5 996.5 1002.0 1006.9 1009.0 1015.8 992.9 DAY 23 16 14 15 12 27 28 7 10 1 1 18 1991 1011.4 1012.6 1006.2 1003.9 998.8 993.7 994.3 996.7 999.6 1011.3 1011.3 1011.0 993.7 DAY 25 20 6 10 22 12 8 6 8 4 4 1 1992 1014.5 1007.1 1003.5 1003.1 1005.6 995.0 995.2 996.7 1005.8 1009.6 1006.3 1015.6 995.0 DAY 17 24 30 18 31 27 10 1 17 5 25 27 1993 1015.9 1009.9 1008.5 1004.5 1003.3 999.4 997.4 998.8 1001.6 1008.6 1005.2 1017.3 997.4 DAY 29 3 8 20 20 3 12 11 3 2 11 5 1994 1009.2 1009.8 1002.7 1004.6 1003.5 995.0 992.7 992.4 1003.8 1010.3 1008.8 1006.8 992.4 DAY 16 12 7 2 13 22 31 2 1 2 26 4 1995 1016.6 1004.6 1004.9 1005.5 1006.7 993.7 990.6 996.4 999.5 1005.6 1007.8 1020.6 990.6 DAY 11 5 26 16 6 22 16 8 20 12 11 4 1996 1015.5 1009.8 1008.9 1004.0 1001.2 996.0 995.2 997.2 1000.0 1005.0 1015.9 1016.6 995.2 DAY 6 10 26 13 29 5 7 8 8 27 29 25 1997 1008.5 1010.3 1001.8 1002.6 1000.9 996.3 991.2 994.7 1000.0 1007.2 1013.9 1012.2 991.2 DAY 17 22 25 10 4 30 16 14 3 6 5 9 1998 1010.0 1005.5 1004.0 1003.0 1000.5 998.6 992.1 1000.3 1000.8 1004.0 1011.9 1016.4 992.1 DAY 13 8 15 22 21 29 5 20 3 1 1 21 1999 1013.1 1007.5 1008.8 1002.1 996.0 991.6 995.9 997.7 1000.2 1009.7 1008.2 1016.2 991.6 DAY 9 20 26 14 20 25 4 14 16 19 1 15 2000 1008.9 1010.2 1004.4 1004.0 999.1 994.2 992.8 997.3 997.2 1009.5 1016.3 1013.5 992.8 DAY 21 7 24 10 26 24 11 31 1 1 3 15 2001 1019.1 1002.8 1000.0 1000.0 997.3 993.7 993.5 997.2 1000.5 1007.9 1006.4 1016.1 993.5 DAY 4 21 25 26 30 18 9 27 5 1 18 5 2002 1011.5 1007.2 1002.1 1003.0 1000.2 994.6 993.7 994.3 1003.5 1008.5 1008.0 1010.1 993.7 DAY 8 25 28 3 29 19 24 17 10 21 12 21 2003 1009.6 1007.3 1000.3 1005.4 1003.8 994.5 992.6 996.8 1000.6 1004.5 1011.5 1012.4 992.6 DAY 28 19 26 27 23 30 30 1 7 27 1 6 2004 1009.8 1003.8 1002.7 1003.3 994.6 996.8 995.5 995.2 1001.9 1009.6 1005.4 1013.8 994.6 DAY 27 15 31 16 13 18 10 4 11 3 23 15 2005 1009.4 1011.5 1000.7 1002.5 1000.3 992.5 991.0 994.0 999.8 1004.5 1013.8 1011.7 991.0 DAY 23 2 24 30 3 20 6 7 5 20 5 26 1986-2005 1008.5 1002.8 1000.0 1000.0 994.6 991.6 990.6 992.4 997.2 1004.0 1005.2 1004.8 990.6 YEAR-DAY 97-17 1-21 1-25 1-26 4-13 99-25 95-16 94- 2 0- 1 98- 1 93-11 88-27 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 100 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1011.6 1008.8 1000.3 1002.2 1005.0 1011.1 1014.8 1019.1 1022.6 ****** 1987 1022.1 1019.6 1011.8 1011.5 1008.4 1002.9 1001.9 1001.7 1008.3 1019.1 1020.2 1021.3 1012.4 1988 1020.8 1018.8 1011.6 1011.9 1006.6 1001.1 997.8 1000.2 1007.6 1015.0 1017.9 1018.8 1010.7 1989 1022.7 1025.3 1013.3 1012.2 1008.7 1001.0 1000.5 1001.5 1006.6 1014.3 1018.5 1018.6 1011.9 1990 1022.5 1017.8 1018.0 1009.3 1006.1 1000.7 999.5 1001.0 1005.7 1014.7 1018.7 1021.4 1011.3 1991 1021.2 1021.7 1014.9 1010.8 ****** 1002.1 998.4 1001.3 1008.5 1015.5 1019.9 1019.8 ****** 1992 1022.4 1016.6 1017.7 1010.1 1010.9 1002.0 999.0 1004.6 1010.0 1014.6 1018.8 1020.5 1012.3 1993 1023.8 1020.0 1016.6 1010.5 1008.7 1002.8 1001.6 1003.6 1007.0 1019.1 1020.3 1023.0 1013.1 1994 1020.4 1017.3 1014.0 1011.7 1008.1 999.8 996.8 999.0 1012.4 1017.3 1016.2 1023.4 1011.4 1995 1021.6 1017.9 1014.6 1010.2 1010.0 1002.4 996.0 1000.1 1006.8 1015.4 1017.5 1024.5 1011.4 1996 1024.6 1017.7 1014.7 1012.9 1008.4 1002.3 1002.8 1002.7 1004.3 1014.8 1022.9 1022.6 1012.5 1997 1018.9 1019.9 1012.7 1009.8 1008.8 1001.6 996.2 1000.5 1008.2 1012.6 1019.7 1020.2 1010.7 1998 1020.1 1018.9 1014.4 1010.4 1009.0 1004.0 999.0 1003.1 1006.7 1015.2 1018.4 1022.9 1011.8 1999 1021.9 1016.6 1014.1 1011.1 1006.8 1000.6 999.5 1002.0 1006.0 1013.0 1019.3 1025.3 1011.3 2000 1020.1 1019.4 1014.8 1009.5 1004.2 1001.4 1001.3 1002.3 1005.5 1015.6 1021.9 1021.6 1011.5 2001 1023.9 1019.0 1013.7 1009.0 1004.9 1000.5 999.6 1002.7 1007.7 1013.5 1018.1 1021.8 1011.2 2002 1021.8 1018.6 1014.1 1009.4 1006.4 1002.0 1001.0 999.9 1007.6 1012.9 1020.3 1021.9 1011.3 2003 1020.8 1016.3 1015.3 1012.0 1010.5 1002.0 996.3 1003.2 1008.4 1012.6 1021.0 1024.4 1011.9 2004 1018.6 1017.7 1016.5 1011.8 1006.8 1002.0 1001.8 1000.8 1009.7 1016.7 1018.0 1022.7 1011.9 2005 1021.4 1019.9 1013.2 1013.7 1008.5 1002.1 999.3 1001.9 1006.0 1014.9 1020.8 1022.0 1012.0 MEAN 1021.6 1018.9 1014.5 1011.0 1007.9 1001.7 999.5 1001.8 1007.7 1015.1 1019.4 1022.0 1011.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 101 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1022.3 1016.1 1009.8 1006.5 1009.2 1016.0 1022.2 1027.0 1033.7 ****** DAY ** ** ** 5 18 2 22 31 22 15 16 7 1987 1032.0 1029.6 1022.5 1020.6 1014.5 1006.8 1007.2 1009.3 1015.5 1028.1 1037.3 1036.1 1037.3 DAY 21 12 23 22 1 1 11 8 25 28 30 1 1988 1033.5 1031.8 1022.4 1025.9 1014.3 1007.4 1003.7 1006.7 1014.8 1025.0 1025.4 1030.1 1033.5 DAY 3 7 17 9 5 8 31 21 25 16 15 29 1989 1032.2 1036.3 1020.1 1020.1 1015.5 1005.8 1005.1 1008.0 1020.4 1024.0 1025.0 1025.4 1036.3 DAY 30 4 8 2 1 2 25 19 23 25 22 18 1990 1033.3 1029.9 1029.4 1015.3 1014.9 1009.6 1003.8 1005.9 1011.2 1027.0 1028.6 1036.6 1036.6 DAY 26 8 17 3 15 1 9 29 24 19 22 28 1991 1030.3 1035.8 1025.8 1018.8 ****** 1008.6 1003.0 1006.1 1017.6 1019.4 1026.7 1030.1 ****** DAY 12 15 12 14 ** 23 12 23 30 13 27 17 1992 1035.0 1026.0 1034.1 1016.1 1022.3 1008.2 1003.5 1014.0 1015.8 1021.1 1027.6 1028.1 1035.0 DAY 10 16 12 3 2 11 12 31 30 30 4 29 1993 1032.3 1028.4 1025.6 1016.6 1018.2 1012.9 1006.8 1008.0 1014.1 1024.7 1029.9 1029.5 1032.3 DAY 6 9 23 1 9 22 27 25 23 16 30 7 1994 1031.5 1029.8 1020.4 1030.0 1014.6 1006.5 1002.6 1003.7 1021.6 1023.8 1021.9 1033.8 1033.8 DAY 10 19 18 5 18 8 2 15 23 10 1 7 1995 1030.8 1024.0 1026.0 1016.8 1016.9 1011.3 1000.5 1004.9 1015.3 1025.2 1027.6 1030.1 1030.8 DAY 7 13 3 7 29 1 4 25 22 27 28 10 1996 1031.3 1025.1 1020.1 1024.3 1014.3 1008.2 1007.0 1011.3 1015.1 1024.1 1035.9 1031.3 1035.9 DAY 26 13 1 5 7 12 4 30 25 19 19 8 1997 1028.5 1029.9 1028.5 1019.2 1016.2 1006.2 1000.5 1005.5 1015.4 1019.2 1029.6 1031.3 1031.3 DAY 19 7 11 12 12 1 19 28 15 9 8 29 1998 1029.3 1033.6 1021.8 1020.3 1019.8 1009.4 1007.5 1007.5 1013.4 1025.2 1025.6 1029.8 1033.6 DAY 4 23 4 12 4 17 20 9 12 10 21 29 1999 1035.5 1025.4 1025.0 1018.6 1012.1 1007.3 1005.0 1008.9 1015.5 1022.3 1031.7 1033.4 1035.5 DAY 2 12 19 11 23 8 28 20 29 26 30 6 2000 1028.9 1028.1 1022.5 1017.2 1008.7 1009.4 1008.8 1007.3 1013.4 1023.8 1033.3 1029.5 1033.3 DAY 31 10 16 2 11 16 30 20 29 16 17 4 2001 1031.4 1030.6 1024.1 1017.9 1009.4 1009.6 1005.9 1008.7 1017.6 1022.8 1029.1 1027.4 1031.4 DAY 29 9 11 2 5 12 29 14 22 10 20 22 2002 1030.9 1030.3 1030.3 1019.7 1012.8 1010.3 1006.7 1007.2 1014.2 1017.5 1030.5 1031.8 1031.8 DAY 14 19 11 1 17 25 30 31 30 10 18 4 2003 1026.6 1023.3 1031.2 1017.6 1021.0 1009.5 1003.6 1007.0 1018.4 1018.6 1034.0 1036.3 1036.3 DAY 23 6 2 3 2 7 3 30 27 15 25 12 2004 1025.8 1025.8 1025.3 1018.9 1014.3 1011.6 1008.2 1006.9 1017.8 1024.7 1027.4 1034.7 1034.7 DAY 1 8 9 6 4 6 18 30 30 27 29 3 2005 1030.2 1030.5 1022.1 1029.1 1013.1 1008.5 1005.5 1006.7 1009.3 1024.0 1026.8 1034.1 1034.1 DAY 8 15 27 6 18 9 28 31 9 24 27 29 1986-2005 1035.5 1036.3 1034.1 1030.0 1022.3 1012.9 1008.8 1014.0 1021.6 1028.1 1037.3 1036.6 1037.3 YEAR-DAY 99- 2 89- 4 92-12 94- 5 92- 2 93-22 0-30 92-31 94-23 87-28 87-30 90-28 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 102 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1006.7 1002.4 993.8 995.1 1001.7 1007.2 1007.7 1008.4 1010.9 ****** DAY ** ** ** 30 10 28 20 15 26 1 7 20 1987 1014.4 1010.6 1002.8 1004.0 1002.9 998.0 994.3 997.4 1001.8 1006.5 1006.0 1012.5 994.3 DAY 6 10 14 26 23 18 3 25 6 4 7 24 1988 1011.2 1003.7 1001.4 1001.3 1000.3 993.7 993.4 995.1 1001.7 1008.2 1010.4 1003.9 993.4 DAY 28 2 21 23 28 30 18 30 12 21 11 27 1989 1012.7 1011.8 1001.1 1003.3 999.4 994.8 995.1 994.6 998.6 1006.6 1014.1 1012.3 994.6 DAY 17 23 29 29 31 10 6 1 11 1 20 5 1990 1013.4 1007.5 1008.3 999.9 998.3 992.1 994.6 995.7 1001.1 1006.0 1008.1 1014.8 992.1 DAY 23 16 14 15 12 27 28 7 5 1 1 18 1991 1010.4 1011.6 1005.0 1003.0 ****** 992.3 993.5 996.0 998.8 1010.4 1010.5 1010.1 ****** DAY 25 20 6 10 ** 12 14 6 8 4 4 1 1992 1013.6 1006.1 1002.7 1002.2 1004.6 994.1 994.3 996.0 1005.0 1008.9 1005.5 1014.8 994.1 DAY 17 24 30 18 31 27 10 1 18 5 25 27 1993 1014.9 1008.6 1007.2 1003.8 1002.3 998.5 996.5 997.9 1000.7 1007.9 1004.3 1016.3 996.5 DAY 29 3 8 20 20 3 12 11 3 2 11 5 1994 1008.4 1008.9 1002.0 1003.8 1002.7 994.1 991.7 991.7 1002.6 1009.3 1007.8 1006.0 991.7 DAY 16 1 7 2 13 22 31 2 1 2 26 4 1995 1015.7 1003.7 1004.2 1004.6 1005.7 993.0 989.7 994.7 998.5 1004.8 1007.0 1020.0 989.7 DAY 11 5 26 16 6 22 16 22 20 12 11 4 1996 1014.5 1008.5 1008.1 1003.1 1000.3 995.2 994.7 996.3 999.1 1004.1 1014.9 1014.7 994.7 DAY 6 10 26 13 29 5 7 8 8 27 29 25 1997 1007.6 1009.5 1001.1 1001.9 1000.2 995.5 990.2 994.0 999.2 1006.4 1012.8 1011.2 990.2 DAY 17 22 25 10 4 30 16 14 3 6 5 9 1998 1008.9 1004.5 1003.0 1002.2 999.7 997.9 991.2 999.2 999.9 1003.3 1011.1 1015.5 991.2 DAY 13 8 15 22 21 29 5 20 5 1 1 21 1999 1012.2 1004.8 1008.0 1001.4 995.5 990.8 995.0 996.8 999.2 1008.8 1007.5 1015.8 990.8 DAY 9 20 26 14 20 25 4 14 16 19 1 15 2000 1008.0 1009.3 1003.4 1003.2 998.2 993.5 991.9 996.3 996.2 1008.5 1015.4 1012.5 991.9 DAY 21 7 24 10 26 24 11 31 1 1 3 15 2001 1018.0 1001.9 999.4 999.2 996.4 992.9 992.2 996.3 999.4 1007.0 1003.5 1015.1 992.2 DAY 4 21 25 26 30 18 9 27 5 1 18 5 2002 1010.4 1006.3 1001.3 1002.8 999.3 994.1 993.7 994.4 1003.5 1008.4 1008.0 1010.1 993.7 DAY 8 25 28 3 29 20 24 17 10 21 12 21 2003 1009.6 1007.4 1000.3 1005.4 1003.7 994.5 992.6 997.0 1000.5 1004.6 1011.4 1012.3 992.6 DAY 28 19 26 27 23 30 30 1 7 27 1 6 2004 1009.7 1003.8 1002.3 1003.2 993.3 996.8 995.5 995.2 1001.9 1009.6 1005.4 1013.8 993.3 DAY 27 15 31 16 13 18 10 4 11 3 23 15 2005 1009.4 1011.4 1000.7 1004.1 1000.3 992.5 990.9 994.0 999.7 1004.5 1013.8 1011.7 990.9 DAY 23 2 24 30 3 20 6 7 5 20 5 26 1986-2005 1007.6 1001.9 999.4 999.2 993.3 990.8 989.7 991.7 996.2 1003.3 1003.5 1003.9 989.7 YEAR-DAY 97-17 1-21 1-25 1-26 4-13 99-25 95-16 94- 2 0- 1 98- 1 1-18 88-27 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 103 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFE PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 914.9 912.6 911.3 905.4 907.7 909.5 913.8 916.1 917.0 918.2 ****** 1987 918.0 916.1 910.5 912.2 911.8 907.9 907.2 906.8 911.3 918.5 918.6 917.6 913.0 1988 916.6 914.9 910.1 912.2 909.7 905.8 903.7 905.5 910.5 915.6 916.3 915.4 911.4 1989 916.9 919.1 911.8 913.2 911.4 906.2 906.4 906.7 909.8 915.3 917.0 915.7 912.4 1990 917.4 913.7 915.6 909.9 909.2 905.6 905.3 906.1 909.1 915.4 917.3 917.1 911.8 1991 916.5 916.9 913.2 911.8 908.1 906.8 904.1 906.1 911.4 916.1 917.7 915.6 912.0 1992 916.8 912.6 914.1 910.4 912.2 906.6 905.0 908.7 912.3 914.9 917.1 916.4 912.2 1993 918.0 915.8 914.0 911.2 911.3 907.3 906.7 908.4 910.2 918.6 917.6 919.2 913.2 1994 916.6 913.6 912.6 913.0 910.8 904.7 902.7 904.4 914.3 917.5 915.1 918.5 912.0 1995 917.5 914.5 913.0 911.0 912.5 906.8 902.4 905.7 909.8 915.5 915.8 919.3 912.0 1996 919.0 914.3 912.5 912.9 911.3 906.9 908.2 907.9 908.3 915.1 920.2 918.9 912.9 1997 914.9 915.2 910.5 910.4 911.4 906.5 902.6 906.0 911.2 914.4 917.9 916.6 911.5 1998 915.4 915.2 912.4 911.5 911.5 909.0 905.0 908.4 910.2 915.7 917.4 919.6 912.6 1999 917.7 913.7 912.3 911.7 909.6 905.8 904.9 907.5 909.4 914.5 917.2 921.2 912.1 2000 915.6 915.4 912.5 911.2 907.9 906.0 906.9 907.4 909.2 916.0 919.5 918.2 912.1 2001 919.0 915.3 912.7 910.6 908.3 905.6 905.2 907.8 910.9 914.6 916.7 918.8 912.1 2002 917.8 915.8 913.0 910.3 909.2 906.7 906.7 905.6 911.3 914.7 918.7 917.6 912.3 2003 917.0 912.9 913.1 912.9 912.7 906.6 903.1 908.2 911.1 914.4 918.7 920.4 912.6 2004 915.0 914.9 915.5 912.4 909.8 907.3 907.1 906.4 912.8 917.4 916.5 918.1 912.8 2005 917.0 915.6 912.0 914.3 911.2 907.0 905.7 907.2 909.6 916.0 918.6 918.9 912.7 MEAN 917.0 915.0 912.8 911.8 910.6 906.5 905.3 907.0 910.8 915.8 917.6 918.1 912.4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 104 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFE PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 921.5 921.1 917.2 913.1 911.5 913.4 917.9 921.4 923.0 926.3 ****** DAY ** ** 16 5 18 2 15 31 22 15 16 7 1987 926.3 923.1 918.3 918.9 916.7 911.9 911.6 913.2 916.7 925.9 931.1 928.9 931.1 DAY 12 12 23 22 12 28 28 8 25 28 30 1 1988 926.2 924.6 918.5 921.9 915.2 911.7 909.5 911.2 916.2 923.8 922.0 923.7 926.2 DAY 3 6 17 9 17 8 31 21 25 16 15 29 1989 923.4 926.5 917.8 917.9 916.0 909.2 910.9 911.8 920.0 921.9 921.6 921.4 926.5 DAY 30 4 8 2 1 3 20 19 23 24 8 18 1990 925.9 923.5 923.5 915.5 915.6 912.2 909.0 909.6 913.1 924.0 925.9 927.5 927.5 DAY 26 8 17 24 16 1 9 2 27 19 22 28 1991 924.0 928.5 920.4 917.2 915.0 913.0 908.0 910.0 917.9 920.1 922.7 923.6 928.5 DAY 12 15 12 14 25 23 11 23 27 13 24 17 1992 926.7 919.8 926.1 914.6 919.4 911.6 908.6 916.2 917.0 919.8 924.0 920.6 926.7 DAY 10 16 12 8 2 10 14 31 1 29 4 28 1993 926.6 922.8 919.8 916.4 918.2 915.6 912.0 911.7 916.1 924.0 924.0 923.6 926.6 DAY 6 9 23 16 9 22 27 30 22 17 21 6 1994 924.7 923.0 917.7 925.0 915.5 910.2 907.1 908.4 922.5 923.5 921.0 926.4 926.4 DAY 9 18 18 5 18 8 13 15 23 23 2 7 1995 925.1 919.6 921.5 915.5 918.1 913.7 906.2 909.5 915.5 924.8 922.0 925.2 925.2 DAY 7 13 3 12 29 1 4 25 22 25 15 10 1996 925.6 920.0 915.2 921.0 916.0 911.7 912.3 915.0 916.5 922.8 930.0 925.5 930.0 DAY 10 13 28 4 7 27 3 29 25 19 18 7 1997 922.2 923.0 923.0 917.1 917.0 910.4 906.6 910.0 916.8 920.0 927.6 925.0 927.6 DAY 19 7 11 13 16 8 19 28 18 8 7 28 1998 922.4 927.1 918.6 922.0 917.5 913.6 912.4 912.0 915.6 923.6 923.9 926.5 927.1 DAY 4 23 27 12 4 6 20 25 12 10 21 29 1999 929.0 920.9 918.9 917.0 915.1 910.7 908.9 913.0 916.2 920.3 925.6 927.3 929.0 DAY 2 12 19 11 28 8 28 20 30 26 30 6 2000 923.1 922.7 917.8 916.0 912.0 911.8 914.0 911.8 917.2 922.8 927.9 924.5 927.9 DAY 30 10 3 2 5 16 30 20 29 16 17 4 2001 923.3 926.1 921.7 918.4 913.0 912.6 911.0 912.9 917.9 922.5 923.5 923.4 926.1 DAY 29 9 1 2 5 12 28 14 22 10 20 9 2002 924.2 922.8 924.9 918.0 914.7 913.3 911.4 911.0 916.1 919.3 927.0 927.6 927.6 DAY 26 19 11 1 17 25 29 31 29 10 18 3 2003 922.2 919.6 925.5 918.8 920.4 911.9 909.6 911.4 918.8 919.3 928.8 928.9 928.9 DAY 22 12 2 8 2 6 3 4 27 15 25 12 2004 921.3 921.2 922.3 918.1 916.8 914.5 912.7 911.2 918.2 922.7 922.5 928.1 928.1 DAY 12 8 9 11 22 6 18 30 30 27 30 3 2005 924.2 924.0 917.4 923.3 915.8 911.6 910.5 910.8 912.2 922.8 922.5 927.3 927.3 DAY 9 15 26 6 18 10 28 17 9 12 15 29 1986-2005 929.0 928.5 926.1 925.0 920.4 915.6 914.0 916.2 922.5 925.9 931.1 928.9 931.1 YEAR-DAY 99- 2 91-15 92-12 94- 5 3- 2 93-22 0-30 92-31 94-23 87-28 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 105 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFE PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 908.9 908.5 906.7 900.7 902.0 905.9 910.6 910.7 909.1 908.0 ****** DAY ** ** 8 30 11 17 20 15 6 1 7 30 1987 909.6 908.6 901.9 903.9 906.1 905.0 900.7 902.5 907.0 908.0 906.6 909.8 900.7 DAY 6 10 14 4 22 9 3 25 6 4 7 30 1988 909.5 903.8 904.2 904.2 905.9 900.2 900.0 901.3 905.2 908.6 910.1 903.0 900.0 DAY 28 2 4 23 28 30 17 29 11 30 28 26 1989 909.6 910.7 901.2 908.8 903.5 901.2 901.8 901.2 903.8 908.8 912.7 912.4 901.2 DAY 17 22 29 29 31 10 5 1 11 1 16 5 1990 910.8 904.9 908.0 901.5 903.9 899.7 901.0 902.0 905.3 908.4 909.4 911.6 899.7 DAY 23 15 14 15 12 27 4 8 1 1 1 18 1991 906.6 909.0 904.2 904.8 902.0 898.6 900.0 901.4 904.0 911.8 911.0 908.9 898.6 DAY 24 20 6 4 22 11 7 11 8 4 4 1 1992 909.1 903.5 901.4 905.4 907.4 900.5 900.9 902.0 907.4 910.3 907.7 912.1 900.5 DAY 2 24 30 17 4 27 18 1 17 5 25 27 1993 909.6 907.0 908.0 906.0 908.0 902.9 902.0 903.0 905.0 910.9 905.5 912.7 902.0 DAY 8 3 10 12 7 3 12 12 3 2 11 5 1994 906.5 906.5 901.7 906.3 906.0 901.0 899.0 899.4 906.5 911.3 909.0 904.5 899.0 DAY 16 12 7 2 1 25 30 2 1 2 26 4 1995 912.5 904.0 904.5 906.0 908.0 900.0 897.0 901.5 902.6 907.6 908.0 915.5 897.0 DAY 11 5 26 16 6 22 16 22 20 12 11 25 1996 910.3 906.4 907.6 905.0 905.1 903.0 901.0 902.0 903.7 906.6 914.4 912.9 901.0 DAY 6 10 13 13 29 19 6 8 21 27 6 25 1997 905.4 908.8 900.6 902.5 903.8 901.5 898.8 900.5 904.1 910.4 913.2 908.5 898.8 DAY 16 5 29 10 4 30 16 14 2 6 20 10 1998 905.9 905.2 902.0 904.6 903.8 904.2 899.0 904.8 905.4 907.0 912.0 913.0 899.0 DAY 13 8 18 21 29 29 5 22 3 1 1 21 1999 910.5 905.1 906.1 902.2 900.5 898.0 901.4 903.5 904.2 911.0 910.6 913.6 898.0 DAY 9 20 26 8 20 25 22 14 16 31 1 15 2000 905.2 907.2 905.0 907.5 902.7 899.8 899.5 901.5 902.2 910.7 913.9 910.8 899.5 DAY 21 7 24 10 26 24 11 30 1 1 21 15 2001 914.0 900.2 902.9 903.7 902.8 899.6 899.3 902.3 904.9 910.5 904.9 912.4 899.3 DAY 19 21 25 26 29 17 10 27 5 1 18 5 2002 910.0 906.2 905.2 901.2 904.9 899.9 900.6 900.8 907.0 909.7 911.2 905.5 899.9 DAY 8 25 22 3 29 19 24 17 10 21 12 21 2003 905.2 903.7 901.6 907.0 907.2 900.3 899.9 904.6 905.1 908.3 911.2 911.2 899.9 DAY 28 20 26 27 23 30 30 1 7 27 14 6 2004 908.3 904.5 906.0 905.9 898.6 902.7 904.3 901.8 907.2 911.5 902.9 910.7 898.6 DAY 23 15 31 17 13 17 23 4 11 3 23 16 2005 906.2 909.5 903.3 907.2 903.5 899.1 898.5 900.5 904.8 907.9 913.4 911.5 898.5 DAY 23 1 24 2 5 20 6 7 5 20 8 24 1986-2005 905.2 900.2 900.6 901.2 898.6 898.0 897.0 899.4 902.2 906.6 902.9 903.0 897.0 YEAR-DAY 0-21 1-21 97-29 2- 3 4-13 99-25 95-16 94- 2 0- 1 96-27 4-23 88-26 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 106 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QNH PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1015.9 1013.4 1012.0 1005.5 1008.0 1010.1 1014.7 1017.2 1018.2 1019.5 ****** 1987 1019.3 1017.2 1011.1 1013.0 1012.5 1008.3 1007.5 1007.1 1011.9 1019.8 1020.0 1018.8 1013.9 1988 1017.7 1016.0 1010.7 1013.0 1010.3 1006.0 1003.7 1005.7 1011.1 1016.7 1017.5 1016.5 1012.1 1989 1018.1 1020.5 1012.5 1014.0 1012.1 1006.4 1006.7 1007.0 1010.3 1016.4 1018.2 1016.8 1013.2 1990 1018.6 1014.6 1016.6 1010.4 1009.7 1005.8 1005.5 1006.4 1009.6 1016.5 1018.5 1018.3 1012.5 1991 1017.6 1018.1 1014.1 1012.5 1008.5 1007.1 1004.2 1006.3 1012.1 1017.2 1019.0 1016.7 1012.8 1992 1018.0 1013.4 1015.0 1011.0 1012.9 1006.8 1005.1 1009.2 1013.0 1015.9 1018.3 1017.5 1013.0 1993 1019.3 1016.9 1014.9 1011.9 1012.0 1007.7 1007.0 1008.8 1010.7 1019.9 1018.9 1020.6 1014.0 1994 1017.8 1014.4 1013.4 1013.8 1011.4 1004.8 1002.6 1004.5 1015.2 1018.8 1016.1 1019.9 1012.7 1995 1018.8 1015.5 1013.8 1011.7 1013.3 1007.1 1002.3 1005.9 1010.4 1016.6 1016.9 1020.8 1012.7 1996 1020.3 1015.3 1013.3 1013.7 1012.0 1007.2 1008.6 1008.3 1008.7 1016.1 1021.7 1020.3 1013.8 1997 1015.9 1016.2 1011.1 1011.1 1012.1 1006.7 1002.5 1006.2 1011.9 1015.4 1019.2 1017.8 1012.2 1998 1016.5 1016.2 1013.2 1012.2 1012.2 1009.5 1005.2 1008.8 1010.8 1016.8 1018.6 1021.0 1013.4 1999 1018.9 1014.6 1013.1 1012.4 1010.2 1006.0 1005.0 1007.9 1010.0 1015.4 1018.4 1022.8 1012.9 2000 1016.6 1016.5 1013.3 1011.9 1008.3 1006.3 1007.2 1007.7 1009.7 1017.1 1021.0 1019.5 1012.9 2001 1020.3 1016.3 1013.6 1011.2 1008.8 1005.8 1005.4 1008.2 1011.6 1015.6 1017.9 1020.1 1012.9 2002 1019.1 1016.9 1013.9 1010.9 1009.7 1007.0 1007.0 1005.8 1012.0 1015.7 1020.0 1018.9 1013.1 2003 1018.2 1013.8 1014.0 1013.8 1013.5 1006.9 1003.1 1008.6 1011.8 1015.3 1020.1 1021.9 1013.4 2004 1016.0 1015.9 1016.6 1013.2 1010.4 1007.6 1007.4 1006.6 1013.6 1018.7 1017.7 1019.4 1013.6 2005 1018.2 1016.7 1012.7 1015.2 1011.9 1007.3 1005.9 1007.5 1010.2 1017.2 1019.9 1020.3 1013.6 MEAN 1018.2 1016.0 1013.6 1012.5 1011.2 1006.8 1005.5 1007.3 1011.5 1016.9 1018.8 1019.4 1013.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 107 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QNH PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1023.1 1022.7 1018.4 1014.0 1012.2 1014.3 1019.2 1023.0 1024.7 1028.3 ****** DAY ** ** 16 5 18 2 15 31 22 15 16 7 1987 1028.3 1024.8 1019.6 1020.3 1017.9 1012.6 1012.3 1014.1 1017.9 1027.9 1033.5 1031.2 1033.5 DAY 12 12 23 22 12 28 28 8 25 28 30 1 1988 1028.2 1026.5 1019.8 1023.5 1016.2 1012.4 1010.0 1011.9 1017.3 1025.6 1023.6 1025.5 1028.2 DAY 3 6 17 9 17 8 31 21 25 16 15 29 1989 1025.2 1028.5 1019.1 1019.2 1017.1 1009.7 1011.6 1012.5 1021.5 1023.5 1023.2 1023.0 1028.5 DAY 30 4 8 2 1 3 20 19 23 24 8 18 1990 1027.9 1025.3 1025.3 1016.6 1016.7 1013.0 1009.5 1010.1 1014.0 1025.8 1027.9 1029.6 1029.6 DAY 26 8 17 24 16 1 9 2 27 19 22 28 1991 1025.8 1030.7 1021.9 1018.4 1016.0 1013.8 1008.4 1010.6 1019.2 1021.6 1024.4 1025.4 1030.7 DAY 12 15 12 14 25 23 11 23 27 13 24 17 1992 1028.8 1021.2 1028.1 1015.6 1020.8 1012.3 1009.1 1017.3 1018.2 1021.2 1025.8 1022.1 1028.8 DAY 10 16 12 8 2 10 14 31 1 29 4 28 1993 1028.6 1024.5 1021.2 1017.5 1019.5 1016.7 1012.8 1012.4 1017.2 1025.8 1025.8 1025.4 1028.6 DAY 6 9 23 16 9 22 27 30 22 17 21 6 1994 1026.6 1024.7 1019.0 1026.9 1016.6 1010.8 1007.4 1008.8 1024.2 1025.3 1022.6 1028.4 1028.4 DAY 9 18 18 5 18 8 13 15 23 23 2 7 1995 1027.0 1021.0 1023.1 1016.6 1019.4 1014.6 1006.4 1010.0 1016.6 1026.7 1023.6 1027.1 1027.1 DAY 7 13 3 12 29 1 4 25 22 25 15 10 1996 1027.6 1021.5 1016.2 1022.6 1017.1 1012.4 1013.1 1016.0 1017.7 1024.5 1032.4 1027.5 1032.4 DAY 10 13 28 4 7 27 3 29 25 19 18 7 1997 1023.9 1024.7 1024.7 1018.3 1018.2 1011.0 1006.9 1010.6 1018.0 1021.5 1029.7 1026.9 1029.7 DAY 19 7 11 13 16 8 19 28 18 8 7 28 1998 1024.1 1029.2 1019.9 1023.6 1018.7 1014.5 1013.2 1012.8 1016.7 1025.4 1025.7 1028.5 1029.2 DAY 4 23 27 12 4 6 20 25 12 10 21 29 1999 1031.3 1022.4 1020.3 1018.2 1016.1 1011.3 1009.4 1013.8 1017.3 1021.8 1027.6 1029.4 1031.3 DAY 2 12 19 11 28 8 28 20 30 26 30 6 2000 1024.8 1024.4 1019.1 1017.1 1012.8 1012.5 1014.9 1012.5 1018.4 1024.5 1030.1 1026.4 1030.1 DAY 30 10 3 2 5 16 30 20 29 16 17 4 2001 1025.1 1028.1 1023.3 1019.7 1013.8 1013.4 1011.7 1013.7 1019.2 1024.2 1025.3 1025.2 1028.1 DAY 29 9 1 2 5 12 28 14 22 10 20 9 2002 1026.0 1024.5 1026.8 1019.3 1015.7 1014.2 1012.1 1011.7 1017.2 1020.7 1029.1 1029.7 1029.7 DAY 26 19 11 1 17 25 29 31 29 10 18 3 2003 1023.9 1021.0 1027.5 1020.2 1021.9 1012.6 1010.1 1012.1 1020.2 1020.7 1031.0 1031.2 1031.2 DAY 22 12 2 8 2 6 3 4 27 15 25 12 2004 1022.9 1022.8 1024.0 1019.4 1018.0 1015.5 1013.5 1011.9 1019.5 1024.4 1024.2 1030.3 1030.3 DAY 12 8 9 11 22 6 18 30 30 27 30 3 2005 1026.0 1025.8 1018.6 1025.1 1016.9 1012.3 1011.1 1011.5 1013.0 1024.5 1024.2 1029.4 1029.4 DAY 9 15 26 6 18 10 28 17 9 12 15 29 1986-2005 1031.3 1030.7 1028.1 1026.9 1021.9 1016.7 1014.9 1017.3 1024.2 1027.9 1033.5 1031.2 1033.5 YEAR-DAY 99- 2 91-15 92-12 94- 5 3- 2 93-22 0-30 92-31 94-23 87-28 87-30 87- 1 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 108 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QNH PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1009.4 1008.9 1007.0 1000.5 1001.9 1006.1 1011.2 1011.3 1009.6 1008.4 ****** DAY ** ** 8 30 11 17 20 15 6 1 7 30 1987 1010.1 1009.1 1001.8 1003.9 1006.3 1005.1 1000.5 1002.4 1007.3 1008.4 1006.9 1010.4 1000.5 DAY 6 10 14 4 22 9 3 25 6 4 7 30 1988 1010.0 1003.8 1004.3 1004.3 1006.1 999.9 999.7 1001.1 1005.4 1009.1 1010.7 1003.0 999.7 DAY 28 2 4 23 28 30 17 29 11 30 28 26 1989 1010.1 1011.3 1001.0 1009.3 1003.5 1001.0 1001.6 1001.0 1003.8 1009.3 1013.5 1013.2 1001.0 DAY 17 22 29 29 31 10 5 1 11 1 16 5 1990 1011.5 1005.0 1008.4 1001.3 1003.9 999.4 1000.8 1001.9 1005.5 1008.8 1009.9 1012.3 999.4 DAY 23 15 14 15 12 27 4 8 1 1 1 18 1991 1006.9 1009.5 1004.3 1004.9 1001.9 998.2 999.7 1001.2 1004.0 1012.5 1011.7 1009.4 998.2 DAY 24 20 6 4 22 11 7 11 8 4 4 1 1992 1009.6 1003.5 1001.2 1005.6 1007.7 1000.2 1000.7 1001.9 1007.7 1010.9 1008.1 1012.9 1000.2 DAY 2 24 30 17 4 27 18 1 17 5 25 27 1993 1010.1 1007.3 1008.4 1006.2 1008.4 1002.8 1001.9 1003.0 1005.1 1011.6 1005.7 1013.5 1001.9 DAY 8 3 10 12 7 3 12 12 3 2 11 5 1994 1006.8 1006.8 1001.5 1006.6 1006.2 1000.8 998.6 999.0 1006.8 1012.0 1009.5 1004.6 998.6 DAY 16 12 7 2 1 25 30 2 1 2 26 4 1995 1013.3 1004.0 1004.6 1006.2 1008.4 999.7 996.4 1001.3 1002.5 1008.0 1008.4 1016.6 996.4 DAY 11 5 26 16 6 22 16 22 20 12 11 25 1996 1010.9 1006.7 1008.0 1005.1 1005.2 1003.0 1000.8 1001.9 1003.7 1006.9 1015.4 1013.7 1000.8 DAY 6 10 13 13 29 19 6 8 21 27 6 25 1997 1005.6 1009.3 1000.3 1002.4 1003.8 1001.3 998.4 1000.2 1004.2 1011.0 1014.1 1008.9 998.4 DAY 16 5 29 10 4 30 16 14 2 6 20 10 1998 1006.1 1005.4 1001.9 1004.7 1003.8 1004.3 998.6 1004.9 1005.6 1007.3 1012.8 1013.8 998.6 DAY 13 8 18 21 29 29 5 22 3 1 1 21 1999 1011.1 1005.2 1006.3 1002.1 1000.2 997.5 1001.2 1003.5 1004.3 1011.7 1011.2 1014.5 997.5 DAY 9 20 26 8 20 25 22 14 16 31 1 15 2000 1005.4 1007.5 1005.1 1007.9 1002.6 999.5 999.1 1001.3 1002.1 1011.3 1014.8 1011.5 999.1 DAY 21 7 24 10 26 24 11 30 1 1 21 15 2001 1014.9 999.9 1002.8 1003.7 1002.7 999.3 998.9 1002.2 1005.0 1011.1 1005.0 1013.2 998.9 DAY 19 21 25 26 29 17 10 27 5 1 18 5 2002 1010.6 1006.4 1005.4 1001.0 1005.0 999.6 1000.3 1000.6 1007.3 1010.2 1011.9 1005.7 999.6 DAY 8 25 22 3 29 19 24 17 10 21 12 21 2003 1005.4 1003.7 1001.4 1007.3 1007.5 1000.0 999.6 1004.7 1005.2 1008.7 1011.9 1011.9 999.6 DAY 28 20 26 27 23 30 30 1 7 27 14 6 2004 1008.7 1004.6 1006.2 1006.1 998.2 1002.6 1004.4 1001.6 1007.5 1012.2 1002.8 1011.3 998.2 DAY 23 15 31 17 13 17 23 4 11 3 23 16 2005 1006.4 1010.0 1003.3 1007.5 1003.5 998.7 998.1 1000.2 1004.9 1008.3 1014.3 1012.2 998.1 DAY 23 1 24 2 5 20 6 7 5 20 8 24 1986-2005 1005.4 999.9 1000.3 1001.0 998.2 997.5 996.4 999.0 1002.1 1006.9 1002.8 1003.0 996.4 YEAR-DAY 0-21 1-21 97-29 2- 3 4-13 99-25 95-16 94- 2 0- 1 96-27 4-23 88-26 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 109 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFF PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1017.3 1011.1 1008.1 999.3 1001.1 1003.8 1010.1 1014.0 1018.8 1022.3 ****** 1987 1021.3 1018.3 1011.0 1010.8 1007.7 1001.8 1000.7 1000.3 1006.8 1018.6 1019.8 1020.6 1011.5 1988 1020.3 1017.7 1010.3 1010.9 1005.5 999.7 996.5 998.8 1006.0 1014.0 1017.3 1018.3 1009.6 1989 1021.9 1024.2 1012.4 1011.1 1007.8 1000.2 999.2 1000.1 1005.2 1012.9 1017.7 1018.1 1010.9 1990 1021.7 1016.7 1016.6 1008.0 1004.8 999.3 998.2 999.4 1004.3 1013.8 1017.9 1020.4 1010.1 1991 1020.3 1020.6 1014.3 1009.7 1004.1 1000.9 996.9 999.7 1007.0 1014.6 1019.0 1019.3 1010.5 1992 1021.6 1015.6 1016.6 1009.0 1010.0 1000.9 997.9 1003.1 1008.7 1013.4 1018.2 1019.8 1011.2 1993 1023.1 1019.0 1015.5 1009.5 1008.0 1001.6 1000.0 1002.2 1005.3 1018.0 1019.9 1022.5 1012.0 1994 1019.6 1016.1 1012.7 1011.3 1007.0 998.5 995.2 997.3 1010.9 1016.4 1015.7 1022.9 1010.3 1995 1020.6 1016.7 1013.2 1009.3 1009.1 1001.1 994.6 998.6 1005.2 1014.3 1016.7 1023.7 1010.3 1996 1023.7 1016.8 1014.0 1011.7 1007.3 997.9 1001.7 1001.5 1002.8 1013.6 1022.3 1021.6 1011.2 1997 1017.7 1018.3 1011.6 1008.5 1007.7 1000.1 994.5 999.0 1006.7 1011.8 1019.3 1019.6 1009.6 1998 1019.3 1018.0 1013.0 1009.3 1007.9 1002.9 997.7 1001.8 1005.4 1014.2 1017.6 1022.1 1010.8 1999 1021.1 1015.3 1012.9 1009.7 1005.1 999.2 998.1 1000.7 1004.6 1012.0 1018.6 1024.6 1010.1 2000 1019.2 1018.1 1013.1 1008.3 1002.9 999.9 1000.0 1000.9 1004.2 1014.8 1021.4 1021.4 1010.3 2001 1023.1 1017.9 1012.4 1007.6 1004.0 999.5 998.3 1001.3 1006.0 1012.4 1017.7 1021.3 1010.1 2002 1021.5 1017.5 1012.9 1008.7 1005.3 1000.4 999.3 997.6 1005.2 1011.1 1019.0 1020.6 1009.9 2003 1019.2 1014.4 1013.2 1010.4 1008.7 999.9 994.1 1000.7 1005.9 1010.7 1019.8 1023.3 1010.0 2004 1016.9 1015.6 1014.5 1010.1 1005.3 999.8 999.4 998.4 1007.4 1014.8 1016.3 1021.1 1010.0 2005 1019.7 1018.1 1011.0 1011.6 1006.6 999.8 997.2 999.6 1003.5 1013.1 1019.2 1020.6 1010.0 MEAN 1020.6 1017.6 1013.4 1009.8 1006.6 1000.1 998.0 1000.2 1006.1 1013.9 1018.6 1021.2 1010.5 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 110 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFF PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1027.5 1022.3 1015.1 1008.5 1006.6 1009.2 1014.7 1020.1 1026.6 1031.9 ****** DAY ** ** 16 5 18 2 15 31 22 15 15 11 1987 1031.1 1027.9 1021.1 1018.9 1013.6 1006.5 1007.8 1007.6 1014.1 1029.2 1036.5 1036.7 1036.7 DAY 12 12 23 1 12 1 28 8 25 28 30 1 1988 1032.7 1030.5 1020.1 1023.5 1012.4 1006.3 1003.0 1005.1 1013.0 1024.9 1025.0 1029.9 1032.7 DAY 3 7 17 9 5 8 31 21 25 16 15 29 1989 1030.6 1034.9 1018.9 1018.8 1015.1 1009.1 1004.0 1006.5 1018.2 1023.1 1023.3 1025.0 1034.9 DAY 30 4 8 2 1 23 21 19 23 25 22 18 1990 1032.2 1028.8 1028.3 1014.6 1012.5 1008.4 1002.7 1004.1 1008.9 1025.3 1028.3 1035.5 1035.5 DAY 26 8 17 3 15 1 9 29 24 19 14 28 1991 1029.0 1035.0 1024.0 1017.7 1013.8 1007.7 1002.0 1004.6 1016.5 1019.4 1026.2 1028.0 1035.0 DAY 12 15 12 14 25 23 11 23 27 13 24 17 1992 1033.5 1024.7 1032.4 1015.1 1021.8 1006.9 1003.9 1013.3 1014.6 1019.7 1025.7 1026.8 1033.5 DAY 10 16 12 8 2 7 14 31 1 30 4 29 1993 1032.1 1027.9 1022.9 1016.4 1017.5 1011.9 1005.7 1006.3 1012.5 1023.6 1029.0 1028.4 1032.1 DAY 6 9 23 16 9 22 27 30 23 17 30 6 1994 1029.3 1028.9 1019.5 1027.7 1013.9 1004.8 1001.4 1002.1 1021.3 1023.8 1020.7 1033.4 1033.4 DAY 10 18 3 5 7 8 2 22 23 23 1 7 1995 1029.2 1024.4 1024.1 1014.4 1017.6 1010.9 998.2 1003.2 1013.7 1026.3 1026.3 1030.0 1030.0 DAY 7 12 3 7 29 1 28 10 22 25 28 10 1996 1031.3 1023.3 1019.3 1024.2 1013.9 1007.2 1005.9 1010.4 1013.2 1023.4 1034.7 1030.4 1034.7 DAY 10 13 1 5 7 27 21 30 25 19 18 3 1997 1026.7 1028.5 1026.5 1018.0 1015.1 1004.5 999.1 1004.2 1014.1 1018.0 1029.5 1030.4 1030.4 DAY 19 7 11 13 7 8 8 29 15 9 7 29 1998 1027.4 1031.4 1020.5 1020.1 1016.6 1007.8 1006.7 1005.7 1012.6 1025.6 1024.6 1030.6 1031.4 DAY 4 23 4 12 2 17 20 9 12 10 21 29 1999 1034.7 1023.5 1022.5 1017.3 1010.6 1005.3 1003.4 1007.0 1013.9 1020.9 1031.0 1032.4 1034.7 DAY 2 12 19 11 23 8 28 20 30 26 30 6 2000 1026.9 1027.4 1020.7 1015.2 1007.5 1007.2 1008.5 1006.2 1014.0 1024.0 1032.0 1028.6 1032.0 DAY 14 10 3 2 7 13 30 20 29 16 17 4 2001 1030.6 1031.0 1023.3 1016.1 1010.5 1011.1 1004.9 1007.5 1015.6 1021.3 1028.2 1026.1 1031.0 DAY 29 9 11 2 5 12 28 14 22 10 20 9 2002 1030.0 1028.2 1028.1 1018.3 1011.6 1008.2 1004.7 1004.4 1012.0 1015.8 1029.2 1030.4 1030.4 DAY 14 19 11 1 17 25 29 31 30 10 18 3 2003 1026.5 1022.0 1030.0 1015.6 1018.9 1007.7 1001.8 1004.2 1016.0 1016.5 1033.9 1034.0 1034.0 DAY 22 28 2 18 2 7 3 4 27 15 25 12 2004 1024.3 1023.6 1022.5 1016.3 1013.4 1008.9 1006.1 1004.8 1015.5 1021.8 1025.6 1032.2 1032.2 DAY 12 8 9 6 22 6 18 30 30 27 30 3 2005 1028.1 1028.7 1019.2 1025.0 1011.5 1006.1 1003.1 1004.9 1006.3 1021.9 1024.7 1032.1 1032.1 DAY 13 15 26 6 18 10 28 31 9 24 27 29 1986-2005 1034.7 1035.0 1032.4 1027.7 1021.8 1011.9 1008.5 1013.3 1021.3 1029.2 1036.5 1036.7 1036.7 YEAR-DAY 99- 2 91-15 92-12 94- 5 92- 2 93-22 0-30 92-31 94-23 87-28 87-30 87- 1 87- 1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 111 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFF PRESSURE IN HPA AT 1200 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1009.2 1006.1 1002.0 993.9 993.7 999.8 1006.0 1007.1 1008.2 1010.6 ****** DAY ** ** 7 30 31 17 20 15 25 1 7 30 1987 1013.1 1010.6 1001.4 1002.2 1001.3 998.5 993.4 995.7 1000.6 1004.5 1004.4 1012.2 993.4 DAY 6 10 14 4 22 9 3 25 6 4 7 13 1988 1010.8 1003.0 1004.3 1000.1 1000.4 993.2 992.1 993.8 999.3 1006.5 1008.6 1005.6 992.1 DAY 28 2 4 23 28 16 18 29 11 30 10 26 1989 1013.3 1012.5 1000.8 1005.3 997.5 994.0 993.0 993.5 997.4 1005.6 1012.8 1014.0 993.0 DAY 17 23 29 23 31 30 14 2 11 1 19 5 1990 1013.5 1005.7 1006.6 997.2 999.9 991.3 993.2 995.3 999.0 1004.9 1006.9 1013.7 991.3 DAY 23 19 14 15 11 27 29 8 5 1 1 18 1991 1008.0 1010.1 1005.2 1001.6 996.5 992.9 992.1 994.1 997.1 1009.2 1009.0 1010.0 992.1 DAY 24 20 6 4 22 12 7 11 8 4 5 1 1992 1012.5 1003.6 999.2 1001.0 1003.8 992.9 993.1 994.4 1003.2 1007.2 1007.2 1015.2 992.9 DAY 2 24 30 22 23 27 19 1 17 5 25 27 1993 1014.2 1007.9 1008.2 1001.5 1003.1 996.9 994.4 996.0 998.1 1006.9 1004.0 1016.0 994.4 DAY 31 3 21 20 20 3 12 12 3 2 11 4 1994 1008.8 1007.6 999.7 1003.4 1001.1 993.6 990.2 990.8 1000.5 1007.7 1009.0 1005.5 990.2 DAY 16 1 7 26 13 25 31 1 1 2 26 4 1995 1014.6 1002.7 1002.3 1003.4 1003.1 992.6 987.7 993.2 997.3 1003.7 1006.0 1019.3 987.7 DAY 11 5 26 16 6 22 16 22 20 12 11 25 1996 1012.8 1006.9 1007.2 1001.9 998.9 907.2 993.2 994.5 997.9 1003.5 1014.6 1013.4 907.2 DAY 6 10 26 13 29 22 6 8 8 27 6 25 1997 1007.2 1008.3 999.2 999.5 999.0 994.1 990.0 992.1 997.2 1006.7 1013.5 1010.4 990.0 DAY 16 22 7 10 4 30 11 14 2 6 5 10 1998 1010.0 1004.2 1001.2 1000.7 998.5 996.5 991.0 997.4 999.5 1001.7 1010.2 1014.5 991.0 DAY 13 8 18 17 21 29 5 21 5 1 1 31 1999 1012.7 1004.4 1004.1 998.4 993.8 990.2 993.1 995.8 997.8 1007.6 1006.7 1015.6 990.2 DAY 9 20 26 8 20 25 4 14 16 19 1 15 2000 1006.4 1009.8 1003.1 1003.8 996.7 992.5 990.5 994.7 995.4 1007.8 1014.9 1013.4 990.5 DAY 21 7 24 10 26 24 11 30 1 1 2 15 2001 1017.7 1000.2 1001.6 998.3 996.6 992.1 990.3 995.1 998.7 1006.2 1004.3 1014.3 990.3 DAY 4 21 24 26 30 17 9 27 5 1 18 20 2002 1011.3 1005.0 1002.8 1000.3 998.6 991.8 991.5 991.6 1001.0 1005.7 1009.2 1006.9 991.5 DAY 8 25 27 3 29 19 24 8 10 21 12 21 2003 1007.2 1005.9 999.2 1002.5 1001.8 992.1 990.6 995.9 998.6 1003.2 1009.7 1011.7 990.6 DAY 28 20 26 27 23 30 30 1 7 27 14 6 2004 1009.2 1001.0 1001.9 1001.3 993.6 994.7 995.4 993.1 999.9 1007.5 1000.7 1012.6 993.1 DAY 27 15 31 16 13 17 23 12 11 3 23 16 2005 1008.8 1009.1 1001.7 1001.7 999.8 990.5 988.8 991.2 997.7 1003.0 1013.2 1011.7 988.8 DAY 23 28 24 26 5 20 6 7 5 20 8 26 1986-2005 1006.4 1000.2 999.2 997.2 993.6 907.2 987.7 990.8 995.4 1001.7 1000.7 1005.5 907.2 YEAR-DAY 0-21 1-21 92-30 90-15 4-13 96-22 95-16 94- 1 0- 1 98- 1 4-23 94- 4 96-22 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 112 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1010.0 1007.0 998.2 1000.0 1002.9 1009.0 1013.0 1017.7 1021.3 ****** 1987 1020.3 1017.3 1010.1 1009.7 1006.8 1000.8 999.7 999.4 1005.9 1017.6 1018.8 1019.6 1010.5 1988 1019.3 1016.7 1009.4 1009.9 1004.7 998.9 995.5 997.8 1005.1 1013.1 1016.4 1017.3 1008.7 1989 1021.0 1023.3 1011.3 1010.2 1007.0 998.9 998.3 999.1 1004.4 1012.2 1016.7 1017.1 1010.0 1990 1020.9 1015.7 1015.7 1007.1 1004.0 998.3 997.2 998.3 1003.3 1012.8 1016.9 1019.5 1009.1 1991 1019.3 1019.7 1013.3 1008.9 ****** 1000.0 996.0 998.9 1006.2 1013.6 1018.0 1018.3 ****** 1992 1020.8 1014.7 1015.7 1008.2 1009.0 1000.0 996.9 1002.1 1007.9 1012.5 1017.3 1018.8 1010.3 1993 1022.2 1017.9 1014.6 1008.6 1007.1 1000.8 999.1 1001.1 1004.4 1017.1 1018.9 1021.5 1011.1 1994 1018.6 1015.2 1011.8 1010.2 1006.1 997.6 994.2 996.4 1010.0 1015.4 1014.7 1021.9 1009.3 1995 1019.7 1015.6 1012.3 1008.4 1008.2 1000.2 993.8 997.6 1004.3 1013.4 1015.8 1022.7 1009.3 1996 1022.8 1015.8 1013.1 1010.9 1006.5 1000.0 1000.7 1000.4 1002.0 1012.8 1021.3 1020.7 1010.6 1997 1016.8 1017.4 1010.7 1007.7 1006.9 999.1 993.6 998.1 1005.9 1010.9 1018.3 1018.6 1008.7 1998 1018.4 1017.1 1012.0 1008.4 1006.9 1001.9 996.7 1000.7 1004.4 1013.2 1016.7 1021.2 1009.8 1999 1020.2 1014.4 1012.0 1008.8 1004.3 998.2 997.1 999.7 1003.7 1011.0 1017.8 1023.6 1009.2 2000 1018.3 1017.3 1012.2 1007.5 1002.1 999.0 999.0 999.8 1003.2 1013.9 1020.5 1020.5 1009.4 2001 1022.2 1016.9 1011.5 1006.7 1003.0 998.5 997.3 1000.1 1005.2 1011.4 1016.9 1020.4 1009.2 2002 1020.6 1016.6 1012.1 1007.8 1004.4 999.8 998.8 997.5 1005.2 1011.1 1018.9 1020.6 1009.5 2003 1019.2 1014.3 1013.2 1010.3 1008.7 999.8 994.1 1000.7 1005.9 1010.7 1019.5 1023.1 1010.0 2004 1016.9 1015.5 1014.5 1010.1 1005.3 999.8 999.4 998.3 1007.4 1014.8 1016.3 1021.0 1009.9 2005 1019.7 1018.1 1011.0 1011.6 1006.5 999.9 997.2 999.5 1003.5 1013.0 1019.2 1020.5 1010.0 MEAN 1019.9 1016.8 1012.4 1009.0 1006.0 999.5 997.2 999.4 1005.3 1013.2 1017.8 1020.4 1009.8 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 113 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1021.1 1014.2 1007.7 1004.2 1008.1 1013.6 1019.1 1025.6 1031.0 ****** DAY ** ** ** 5 18 2 15 31 22 15 16 11 1987 1030.1 1027.2 1020.3 1017.9 1012.6 1005.3 1006.5 1006.5 1013.0 1028.1 1035.6 1033.7 1035.6 DAY 12 12 23 1 12 1 28 8 25 28 30 1 1988 1031.8 1029.6 1019.2 1022.5 1011.9 1005.2 1002.0 1004.0 1012.0 1023.8 1024.4 1029.1 1031.8 DAY 3 7 17 9 5 8 31 21 25 16 15 29 1989 1029.8 1033.8 1017.8 1017.8 1014.3 1003.3 1003.1 1005.2 1017.4 1022.1 1022.4 1024.1 1033.8 DAY 30 4 7 2 1 2 23 19 23 25 22 18 1990 1031.4 1027.9 1027.4 1013.7 1011.7 1007.5 1001.7 1003.0 1008.1 1024.5 1027.4 1034.7 1034.7 DAY 26 8 17 3 15 1 9 29 24 19 14 28 1991 1028.0 1034.3 1023.1 1016.8 ****** 1006.8 1000.8 1003.9 1015.6 1018.5 1025.2 1028.2 ****** DAY 12 15 12 14 ** 23 11 23 27 13 27 17 1992 1032.8 1023.5 1031.9 1014.0 1020.5 1006.1 1001.8 1012.2 1013.7 1018.9 1024.9 1025.9 1032.8 DAY 10 16 12 7 2 7 14 31 1 30 4 29 1993 1030.9 1026.4 1022.9 1014.5 1016.6 1010.7 1004.5 1004.9 1011.5 1022.9 1028.1 1027.6 1030.9 DAY 6 9 23 1 9 22 27 30 23 17 30 6 1994 1028.5 1028.0 1017.9 1026.6 1013.0 1004.1 1000.2 1001.1 1020.7 1022.5 1019.7 1032.8 1032.8 DAY 10 18 3 5 7 8 2 22 23 23 1 7 1995 1028.2 1022.0 1023.2 1013.8 1016.3 1009.8 998.7 1002.3 1012.7 1024.3 1025.5 1029.0 1029.0 DAY 7 13 3 7 29 1 4 10 22 26 28 10 1996 1030.4 1022.4 1018.3 1023.2 1012.8 1006.3 1004.9 1009.6 1012.1 1022.5 1033.8 1029.6 1033.8 DAY 10 13 1 5 7 27 21 30 25 19 18 3 1997 1026.0 1027.8 1025.8 1017.1 1014.2 1003.5 997.9 1003.1 1013.2 1017.1 1028.6 1029.5 1029.5 DAY 19 7 11 13 7 8 8 28 15 8 7 29 1998 1026.3 1030.5 1019.6 1019.3 1015.6 1006.9 1005.6 1004.7 1011.3 1023.4 1023.7 1029.6 1030.5 DAY 4 23 4 12 4 17 20 8 12 10 21 29 1999 1033.9 1022.7 1021.7 1016.5 1009.9 1004.4 1002.5 1006.0 1012.8 1019.9 1030.2 1031.5 1033.9 DAY 2 12 19 11 23 8 28 20 30 26 30 6 2000 1026.7 1026.6 1019.9 1014.4 1006.5 1006.5 1007.4 1005.3 1013.0 1022.8 1031.2 1027.5 1031.2 DAY 30 10 3 2 7 13 30 20 29 16 17 4 2001 1030.2 1030.1 1022.3 1015.2 1009.6 1009.9 1003.8 1006.6 1014.6 1020.4 1027.4 1025.2 1030.2 DAY 29 9 11 2 5 12 28 14 22 10 20 22 2002 1029.3 1027.5 1027.5 1017.4 1010.7 1007.4 1004.7 1004.4 1012.0 1015.8 1029.1 1030.4 1030.4 DAY 14 19 11 1 17 25 29 31 30 10 18 3 2003 1026.5 1022.0 1030.1 1015.6 1018.9 1007.7 1001.8 1004.3 1016.1 1016.5 1033.0 1034.0 1034.0 DAY 22 28 2 18 2 7 3 4 27 15 25 12 2004 1024.4 1023.5 1022.5 1016.3 1013.4 1008.9 1006.1 1004.8 1015.6 1021.8 1025.6 1032.2 1032.2 DAY 12 8 9 6 22 6 18 30 30 27 30 3 2005 1028.1 1028.7 1019.2 1025.0 1011.5 1006.1 1003.1 1004.9 1006.4 1021.8 1024.6 1032.1 1032.1 DAY 13 15 26 6 18 10 28 31 9 24 27 29 1986-2005 1033.9 1034.3 1031.9 1026.6 1020.5 1010.7 1007.4 1012.2 1020.7 1028.1 1035.6 1034.7 1035.6 YEAR-DAY 99- 2 91-15 92-12 94- 5 92- 2 93-22 0-30 92-31 94-23 87-28 87-30 90-28 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 114 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1005.2 1001.2 992.6 992.9 999.0 1005.1 1006.0 1007.3 1009.5 ****** DAY ** ** ** 30 31 17 20 15 25 1 7 30 1987 1012.1 1009.4 1000.7 1001.1 1000.3 997.6 992.8 994.9 999.7 1003.7 1003.5 1011.1 992.8 DAY 6 10 14 4 22 9 3 25 6 4 7 13 1988 1009.9 1002.2 1003.1 999.2 999.7 992.6 991.1 993.0 998.6 1006.0 1007.8 1004.7 991.1 DAY 28 2 4 23 28 30 18 29 12 30 10 26 1989 1012.4 1011.4 999.9 1004.4 996.7 993.3 991.9 992.8 996.7 1004.7 1011.9 1012.8 991.9 DAY 17 23 29 29 31 30 14 2 11 1 19 4 1990 1012.6 1004.7 1005.7 996.5 999.2 990.5 992.5 994.7 998.0 1004.0 1005.9 1012.7 990.5 DAY 1 19 14 15 11 27 29 6 5 1 1 18 1991 1007.1 1009.1 1003.7 1001.5 ****** 991.3 991.4 993.6 996.3 1008.3 1008.1 1009.1 ****** DAY 24 20 6 4 ** 11 7 6 8 4 5 1 1992 1011.7 1002.5 998.7 1000.2 1002.9 992.2 992.5 993.7 1002.4 1006.5 1006.1 1014.3 992.2 DAY 2 24 30 22 23 27 19 1 17 5 25 27 1993 1013.1 1006.8 1007.4 1000.9 1002.2 996.3 993.7 995.0 997.3 1006.0 1003.1 1014.9 993.7 DAY 31 3 21 20 20 3 12 12 3 2 11 28 1994 1007.8 1006.6 998.9 1002.6 1000.7 992.7 989.4 990.0 999.6 1006.7 1008.0 1004.6 989.4 DAY 16 1 7 26 13 25 30 1 1 2 26 4 1995 1014.1 1001.6 1001.5 1002.6 1002.3 991.3 986.9 992.4 996.2 1002.9 1005.1 1018.3 986.9 DAY 11 5 26 16 6 22 16 22 20 12 11 25 1996 1011.8 1005.7 1006.4 1001.0 998.1 995.3 992.5 993.8 997.1 1002.8 1013.7 1012.6 992.5 DAY 6 10 26 13 29 5 6 8 8 27 6 25 1997 1005.2 1007.5 998.5 998.9 998.2 993.3 989.1 991.3 996.4 1005.9 1012.5 1009.2 989.1 DAY 16 22 7 10 4 30 11 14 2 6 5 10 1998 1009.0 1003.3 1000.1 1000.0 997.8 995.8 990.0 996.3 998.3 1001.0 1009.4 1013.5 990.0 DAY 13 8 18 17 21 29 5 17 3 1 1 31 1999 1011.8 1003.4 1003.4 997.7 993.2 989.7 992.3 994.9 996.9 1006.7 1009.2 1014.7 989.7 DAY 9 20 26 8 20 25 4 14 16 19 1 15 2000 1005.6 1009.0 1002.1 1003.1 995.3 991.8 989.5 993.6 994.9 1006.9 1013.9 1012.3 989.5 DAY 21 7 24 10 26 24 11 30 1 1 2 15 2001 1016.6 999.3 1000.9 997.5 995.8 991.2 989.4 994.3 997.5 1005.4 1003.2 1013.9 989.4 DAY 4 21 24 26 30 17 9 27 5 1 18 5 2002 1010.5 1004.1 1002.2 999.2 998.1 991.7 991.5 991.6 1001.0 1005.6 1009.2 1006.8 991.5 DAY 8 25 27 3 29 19 24 8 10 21 12 21 2003 1007.1 1005.9 999.2 1002.4 1001.7 992.1 990.5 995.9 998.6 1003.2 1009.7 1011.7 990.5 DAY 28 20 26 27 23 30 30 1 7 27 14 6 2004 1009.2 1001.0 1001.9 1001.4 993.6 994.7 995.5 993.1 999.8 1007.5 1000.7 1012.6 993.1 DAY 27 15 31 16 13 17 23 12 11 3 23 16 2005 1008.8 1009.2 1001.7 1001.6 999.8 990.4 988.8 991.2 997.7 1003.0 1013.2 1011.7 988.8 DAY 23 28 24 26 5 20 6 7 5 20 8 26 1986-2005 1005.2 999.3 998.5 996.5 993.2 989.7 986.9 990.0 994.9 1001.0 1000.7 1004.6 986.9 YEAR-DAY 97-16 1-21 97- 7 90-15 99-20 99-25 95-16 94- 1 0- 1 98- 1 4-23 94- 4 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 115 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFE PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 915.0 912.6 911.1 904.9 907.1 909.1 913.4 916.4 917.5 918.9 ****** 1987 918.5 916.2 910.5 912.2 911.5 907.2 906.4 906.4 911.1 918.8 919.2 918.2 913.0 1988 917.1 915.4 910.3 912.2 909.4 905.2 902.9 904.7 910.1 915.7 916.9 916.3 911.3 1989 917.3 919.3 911.9 913.1 911.0 905.4 905.4 906.0 909.2 915.3 917.3 916.3 912.3 1990 917.9 914.1 915.7 910.0 908.8 904.8 904.5 905.3 908.5 915.5 917.7 917.7 911.7 1991 917.1 917.2 913.3 911.7 907.9 906.0 903.3 905.3 911.1 916.2 918.0 916.2 911.9 1992 917.5 913.0 914.2 910.5 912.0 906.2 904.2 908.0 912.0 914.8 917.7 917.2 912.3 1993 918.4 916.0 914.0 911.2 911.2 906.7 906.0 907.8 909.7 918.7 918.0 919.8 913.1 1994 917.2 913.9 912.5 912.8 910.6 904.0 901.7 903.5 913.9 917.7 915.4 919.1 911.9 1995 917.9 914.8 912.9 911.2 912.3 906.3 901.4 904.9 909.5 915.5 916.3 919.8 911.9 1996 919.5 914.6 912.7 912.7 911.1 906.3 907.4 907.1 908.0 915.4 920.6 919.4 912.9 1997 915.3 915.4 910.7 910.4 911.5 905.9 901.6 905.3 910.9 915.0 918.6 917.5 911.5 1998 916.1 915.8 912.7 911.5 911.1 908.3 904.5 907.8 909.7 915.8 917.8 920.4 912.6 1999 918.1 913.8 912.3 911.5 909.2 905.0 904.0 906.9 909.0 914.5 917.8 921.9 912.0 2000 916.1 915.7 912.6 911.1 907.3 905.2 906.2 906.6 908.8 916.2 920.0 918.9 912.1 2001 919.4 915.5 912.8 910.3 908.1 904.9 904.5 907.2 910.6 914.7 917.3 919.4 912.1 2002 918.3 916.2 913.1 910.4 908.8 906.1 906.0 904.9 910.9 915.0 919.1 918.0 912.2 2003 917.5 913.3 913.1 912.9 912.4 905.8 902.1 907.5 910.7 914.4 919.1 921.1 912.5 2004 915.4 915.1 915.4 912.2 909.5 906.7 906.3 905.6 912.4 917.5 917.0 918.6 912.6 2005 917.4 915.8 912.0 914.0 910.9 906.2 904.9 906.5 909.3 916.0 919.1 919.4 912.6 MEAN 917.5 915.3 912.9 911.7 910.3 905.8 904.5 906.3 910.4 916.0 918.0 918.7 912.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 116 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFE PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 922.2 920.7 917.0 912.4 910.7 913.0 917.5 921.2 924.2 927.8 ****** DAY ** ** 16 5 18 2 3 31 22 14 15 6 1987 926.4 922.9 918.2 917.6 916.7 911.2 912.5 912.5 916.4 926.3 931.1 928.5 931.1 DAY 12 1 23 22 12 27 28 7 25 28 30 1 1988 927.5 925.7 917.9 921.3 914.4 910.9 909.0 910.0 915.8 924.0 922.6 925.0 927.5 DAY 3 6 17 9 17 8 31 21 25 16 15 29 1989 923.8 925.8 917.9 917.3 915.2 908.7 910.0 911.5 920.0 922.7 921.8 922.6 925.8 DAY 30 4 8 2 1 13 20 19 23 24 8 18 1990 925.8 923.3 923.4 915.4 914.4 911.0 908.4 909.0 913.0 923.6 926.1 927.5 927.5 DAY 26 7 20 24 15 1 17 2 27 19 22 28 1991 924.0 927.7 920.4 916.9 914.2 912.0 907.3 909.0 917.5 920.4 922.5 925.2 927.7 DAY 11 15 12 14 24 23 11 27 27 20 27 17 1992 927.8 920.4 925.4 914.0 920.6 911.4 908.0 915.6 916.5 920.4 924.0 922.8 927.8 DAY 9 15 12 2 2 10 14 31 1 29 3 28 1993 927.0 922.8 919.2 916.2 917.6 914.6 911.0 911.4 915.5 923.5 923.8 924.8 927.0 DAY 6 9 23 16 9 22 27 30 23 17 21 6 1994 925.3 923.6 917.6 924.6 914.9 909.0 906.4 907.7 921.7 923.4 921.4 927.4 927.4 DAY 9 18 18 5 17 8 13 15 23 23 1 7 1995 925.7 919.5 920.8 915.7 917.7 912.9 905.0 908.6 915.0 924.9 922.1 925.4 925.7 DAY 7 13 3 12 29 1 31 10 22 25 16 10 1996 926.2 919.5 917.3 920.5 915.0 911.0 911.4 914.3 916.0 922.6 931.0 926.0 931.0 DAY 9 23 28 5 7 27 3 30 25 19 18 3 1997 923.0 923.0 922.7 917.0 917.8 912.0 905.4 909.9 915.8 920.0 928.7 925.4 928.7 DAY 19 7 11 13 12 14 19 28 15 9 7 28 1998 922.0 926.6 918.6 920.2 917.9 913.8 911.4 912.0 915.4 923.0 924.3 926.3 926.6 DAY 22 23 27 12 3 16 21 9 12 10 21 29 1999 929.4 921.0 919.8 916.0 914.2 909.8 908.3 912.8 916.1 920.8 926.4 927.7 929.4 DAY 2 12 18 11 28 8 28 20 30 26 30 5 2000 923.7 923.2 918.9 915.1 911.5 910.9 913.5 911.5 917.9 922.5 927.8 925.0 927.8 DAY 30 10 3 4 7 16 30 20 29 16 17 4 2001 924.3 925.8 922.1 918.0 913.7 912.6 910.4 912.2 918.6 922.2 923.5 923.4 925.8 DAY 29 9 1 1 5 12 29 14 22 10 20 9 2002 924.6 923.9 924.1 917.3 913.5 912.5 911.0 910.7 915.8 919.6 927.2 927.2 927.2 DAY 27 5 11 1 17 25 29 31 29 10 18 3 2003 922.8 919.9 925.0 917.4 919.9 911.2 908.4 910.5 918.3 919.3 928.8 929.9 929.9 DAY 22 12 2 8 2 4 3 30 26 15 25 11 2004 921.5 920.6 922.4 918.6 915.8 913.2 911.4 910.1 917.8 922.6 922.9 929.0 929.0 DAY 12 8 9 10 22 6 18 30 27 27 28 3 2005 924.5 924.0 917.0 922.6 915.3 910.9 909.8 910.5 911.6 922.2 923.1 927.9 927.9 DAY 9 15 26 6 13 10 28 17 9 23 23 29 1986-2005 929.4 927.7 925.4 924.6 920.6 914.6 913.5 915.6 921.7 926.3 931.1 929.9 931.1 YEAR-DAY 99- 2 91-15 92-12 94- 5 92- 2 93-22 0-30 92-31 94-23 87-28 87-30 3-11 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 117 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFE PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 909.2 908.2 906.3 900.7 901.1 905.5 910.2 910.5 909.5 907.8 ****** DAY ** ** 7 30 11 17 20 6 6 1 7 30 1987 910.2 908.2 902.6 902.7 905.2 903.9 900.5 901.8 907.0 907.8 908.4 910.8 900.5 DAY 2 10 19 4 22 9 3 25 6 4 7 23 1988 910.0 905.4 903.1 905.4 905.2 899.5 899.4 900.7 904.4 909.1 910.5 903.7 899.4 DAY 26 2 4 30 24 30 18 29 11 30 10 26 1989 911.1 911.2 901.0 910.0 902.5 900.2 900.2 900.2 903.5 908.0 912.6 912.1 900.2 DAY 2 22 29 29 31 10 5 1 11 1 19 31 1990 910.8 902.8 907.2 900.7 904.0 899.4 900.0 900.7 904.6 908.1 910.8 911.6 899.4 DAY 17 15 24 15 11 26 4 8 1 1 1 18 1991 906.4 909.0 904.0 904.8 901.0 897.6 899.2 900.8 904.0 912.8 911.7 909.6 897.6 DAY 24 20 6 4 22 11 13 11 8 4 5 12 1992 908.1 902.8 902.2 904.8 907.3 900.1 900.0 900.9 906.5 909.9 907.9 912.5 900.0 DAY 2 24 30 17 20 27 18 1 17 5 25 19 1993 909.6 907.3 907.0 904.8 907.9 902.1 901.6 902.2 904.6 910.7 907.4 913.8 901.6 DAY 8 3 21 20 2 3 12 12 3 2 10 5 1994 909.3 907.5 903.4 907.0 906.0 900.2 897.9 898.6 905.8 912.1 908.7 904.7 897.9 DAY 16 12 7 2 1 25 30 2 1 2 25 3 1995 912.5 906.3 904.5 905.5 907.5 900.8 896.3 900.8 904.9 908.6 908.1 916.0 896.3 DAY 11 5 25 16 5 22 16 22 19 12 25 25 1996 912.4 907.0 908.2 905.8 904.7 902.0 900.8 902.0 903.2 908.7 914.2 914.3 900.8 DAY 6 10 25 13 29 19 6 8 21 27 6 24 1997 906.1 908.2 901.1 903.3 904.6 900.5 897.4 900.0 904.0 911.0 914.4 909.7 897.4 DAY 16 22 29 10 4 30 16 5 2 2 19 10 1998 907.4 906.9 902.4 904.6 903.8 903.5 897.9 903.5 904.4 908.0 911.5 914.4 897.9 DAY 12 13 18 23 29 29 4 21 3 1 1 31 1999 911.7 903.3 906.3 902.2 900.7 898.2 900.2 902.9 904.0 911.5 910.9 913.8 898.2 DAY 9 20 21 8 20 24 22 13 15 19 25 15 2000 905.6 908.8 904.6 908.2 901.5 899.0 899.0 900.5 902.2 911.3 914.6 911.8 899.0 DAY 21 6 24 22 26 24 11 30 1 12 21 15 2001 914.7 901.5 903.2 904.0 901.4 899.0 898.4 902.3 903.9 910.6 904.7 913.4 898.4 DAY 19 21 25 12 29 17 10 27 5 1 18 5 2002 911.0 907.4 905.2 902.5 904.9 898.8 899.5 900.0 906.6 910.0 912.2 905.7 898.8 DAY 7 26 22 3 29 20 24 7 10 21 13 21 2003 904.6 904.9 902.3 906.0 907.5 899.3 898.9 904.6 905.0 908.3 912.6 911.2 898.9 DAY 28 20 26 27 7 30 24 1 7 27 13 6 2004 908.0 904.5 906.3 905.1 899.5 902.4 903.7 901.3 906.3 911.9 905.3 911.5 899.5 DAY 23 15 31 16 15 17 24 4 11 3 23 16 2005 908.4 908.6 906.5 906.0 903.1 898.3 897.7 900.0 904.4 908.2 914.5 911.6 897.7 DAY 23 1 24 3 5 20 5 7 5 20 8 25 1986-2005 904.6 901.5 901.0 900.7 899.5 897.6 896.3 898.6 902.2 907.8 904.7 903.7 896.3 YEAR-DAY 3-28 1-21 89-29 90-15 4-15 91-11 95-16 94- 2 0- 1 87- 4 1-18 88-26 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 118 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QNH PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1016.0 1013.4 1011.8 1005.0 1007.4 1009.6 1014.3 1017.6 1018.7 1020.3 ****** 1987 1019.9 1017.4 1011.1 1012.9 1012.2 1007.5 1006.7 1006.6 1011.7 1020.1 1020.6 1019.5 1013.9 1988 1018.3 1016.5 1010.9 1013.0 1009.9 1005.3 1002.8 1004.8 1010.7 1016.8 1018.1 1017.4 1012.0 1989 1018.6 1020.7 1012.7 1013.9 1011.7 1005.5 1005.6 1006.2 1009.7 1016.3 1018.5 1017.5 1013.1 1990 1019.2 1015.0 1016.8 1010.5 1009.3 1004.9 1004.6 1005.4 1008.9 1016.5 1019.0 1019.0 1012.4 1991 1018.3 1018.4 1014.1 1012.4 1008.3 1006.3 1003.3 1005.4 1011.7 1017.3 1019.3 1017.3 1012.7 1992 1018.7 1013.9 1015.1 1011.1 1012.7 1006.5 1004.3 1008.4 1012.8 1015.8 1018.9 1018.4 1013.1 1993 1019.8 1017.1 1014.9 1011.9 1011.8 1006.9 1006.2 1008.1 1010.2 1020.0 1019.3 1021.2 1014.0 1994 1018.4 1014.9 1013.3 1013.6 1011.2 1004.0 1001.6 1003.5 1014.8 1019.0 1016.5 1020.5 1012.6 1995 1019.2 1015.8 1013.8 1011.8 1013.1 1006.5 1001.2 1005.0 1010.1 1016.6 1017.4 1021.3 1012.7 1996 1020.9 1015.6 1013.6 1013.5 1011.8 1006.5 1007.7 1007.5 1008.4 1016.5 1022.2 1020.8 1013.7 1997 1016.3 1016.4 1011.4 1011.1 1012.2 1006.2 1001.4 1005.5 1011.5 1016.0 1019.9 1018.7 1012.2 1998 1017.2 1016.9 1013.5 1012.2 1011.8 1008.7 1004.6 1008.2 1010.3 1016.9 1019.1 1021.9 1013.4 1999 1019.4 1014.8 1013.1 1012.2 1009.7 1005.1 1004.1 1007.2 1009.5 1015.4 1019.1 1023.5 1012.8 2000 1017.2 1016.8 1013.4 1011.7 1007.6 1005.4 1006.4 1006.9 1009.3 1017.3 1021.5 1020.2 1012.8 2001 1020.8 1016.6 1013.6 1010.9 1008.5 1005.1 1004.6 1007.6 1011.3 1015.7 1018.6 1020.8 1012.8 2002 1019.6 1017.3 1014.0 1011.0 1009.3 1006.4 1006.3 1005.1 1011.6 1016.1 1020.5 1019.3 1013.0 2003 1018.7 1014.1 1014.0 1013.7 1013.2 1006.0 1001.9 1007.8 1011.3 1015.4 1020.5 1022.6 1013.3 2004 1016.4 1016.1 1016.5 1012.9 1010.1 1006.9 1006.6 1005.8 1013.2 1018.8 1018.2 1019.9 1013.4 2005 1018.6 1016.9 1012.8 1014.9 1011.5 1006.4 1005.0 1006.7 1009.9 1017.1 1020.4 1020.8 1013.4 MEAN 1018.7 1016.4 1013.7 1012.4 1010.9 1006.1 1004.6 1006.6 1011.1 1017.1 1019.3 1020.0 1013.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 119 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QNH PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1023.9 1022.2 1018.2 1013.2 1011.3 1013.8 1018.7 1022.8 1026.0 1030.0 ****** DAY ** ** 16 5 18 2 3 31 22 14 15 6 1987 1028.4 1024.6 1019.5 1018.9 1017.9 1011.9 1013.3 1013.3 1017.5 1028.3 1033.5 1030.7 1033.5 DAY 12 1 23 22 12 27 28 7 25 28 30 1 1988 1029.6 1027.7 1019.2 1022.9 1015.4 1011.6 1009.5 1010.6 1016.9 1025.8 1024.3 1026.9 1029.6 DAY 3 6 17 9 17 8 31 21 25 16 15 29 1989 1025.6 1027.8 1019.2 1018.5 1016.2 1009.2 1010.6 1012.2 1021.5 1024.4 1023.4 1024.3 1027.8 DAY 30 4 8 2 1 13 20 19 23 24 8 18 1990 1027.8 1025.1 1025.2 1016.5 1015.4 1011.7 1008.8 1009.5 1013.8 1025.4 1028.1 1029.6 1029.6 DAY 26 7 20 24 15 1 17 2 27 19 22 28 1991 1025.8 1029.8 1021.9 1018.1 1015.2 1012.8 1007.6 1009.5 1018.7 1021.9 1024.2 1027.1 1029.8 DAY 11 15 12 14 24 23 11 27 27 20 27 17 1992 1030.0 1021.9 1027.3 1014.9 1022.1 1012.1 1008.4 1016.7 1017.7 1021.9 1025.8 1024.5 1030.0 DAY 9 15 12 2 2 10 14 31 1 29 3 28 1993 1029.1 1024.5 1020.6 1017.3 1018.9 1015.6 1011.7 1012.1 1016.6 1025.3 1025.6 1026.7 1029.1 DAY 6 9 23 16 9 22 27 30 23 17 21 6 1994 1027.2 1025.4 1018.9 1026.5 1015.9 1009.5 1006.7 1008.1 1023.3 1025.2 1023.0 1029.5 1029.5 DAY 9 18 18 5 17 8 13 15 23 23 1 7 1995 1027.7 1020.9 1022.3 1016.8 1019.0 1013.7 1005.1 1009.1 1016.0 1026.8 1023.8 1027.3 1027.7 DAY 7 13 3 12 29 1 31 10 22 25 16 10 1996 1028.2 1020.9 1018.5 1022.0 1016.0 1011.7 1012.1 1015.3 1017.1 1024.3 1033.4 1028.0 1033.4 DAY 9 23 28 5 7 27 3 30 25 19 18 3 1997 1024.7 1024.7 1024.4 1018.2 1019.1 1012.8 1005.6 1010.5 1016.9 1021.5 1030.9 1027.3 1030.9 DAY 19 7 11 13 12 14 19 28 15 9 7 28 1998 1023.6 1028.6 1019.9 1021.7 1019.2 1014.7 1012.1 1012.8 1016.5 1024.7 1026.1 1028.3 1028.6 DAY 22 23 27 12 3 16 21 9 12 10 21 29 1999 1031.7 1022.6 1021.2 1017.1 1015.2 1010.4 1008.7 1013.6 1017.2 1022.3 1028.4 1029.8 1031.7 DAY 2 12 18 11 28 8 28 20 30 26 30 5 2000 1025.5 1024.9 1020.3 1016.1 1012.2 1011.6 1014.4 1012.2 1019.2 1024.2 1030.0 1026.9 1030.0 DAY 30 10 3 4 7 16 30 20 29 16 17 4 2001 1026.1 1027.8 1023.8 1019.3 1014.6 1013.4 1011.0 1013.0 1019.9 1023.9 1025.3 1025.2 1027.8 DAY 29 9 1 1 5 12 29 14 22 10 20 9 2002 1026.5 1025.7 1025.9 1018.5 1014.4 1013.3 1011.7 1011.3 1016.9 1021.0 1029.3 1029.3 1029.3 DAY 27 5 11 1 17 25 29 31 29 10 18 3 2003 1024.5 1021.4 1026.9 1018.6 1021.4 1011.9 1008.8 1011.1 1019.6 1020.7 1031.0 1032.2 1032.2 DAY 22 12 2 8 2 4 3 30 26 15 25 11 2004 1023.1 1022.1 1024.1 1019.9 1016.9 1014.1 1012.1 1010.7 1019.1 1024.3 1024.6 1031.3 1031.3 DAY 12 8 9 10 22 6 18 30 27 27 28 3 2005 1026.4 1025.8 1018.2 1024.3 1016.3 1011.6 1010.4 1011.1 1012.3 1023.9 1024.8 1030.1 1030.1 DAY 9 15 26 6 13 10 28 17 9 23 23 29 1986-2005 1031.7 1029.8 1027.3 1026.5 1022.1 1015.6 1014.4 1016.7 1023.3 1028.3 1033.5 1032.2 1033.5 YEAR-DAY 99- 2 91-15 92-12 94- 5 92- 2 93-22 0-30 92-31 94-23 87-28 87-30 3-11 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 120 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QNH PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1009.7 1008.6 1006.6 1000.5 1000.9 1005.7 1010.8 1011.1 1010.0 1008.2 ****** DAY ** ** 7 30 11 17 20 6 6 1 7 30 1987 1010.8 1008.6 1002.5 1002.6 1005.4 1003.9 1000.2 1001.6 1007.3 1008.2 1008.8 1011.5 1000.2 DAY 2 10 19 4 22 9 3 25 6 4 7 23 1988 1010.6 1005.6 1003.1 1005.6 1005.4 999.1 999.0 1000.5 1004.5 1009.6 1011.1 1003.7 999.0 DAY 26 2 4 30 24 30 18 29 11 30 10 26 1989 1011.8 1011.9 1000.8 1010.6 1002.4 999.9 999.9 999.9 1003.5 1008.4 1013.4 1012.9 999.9 DAY 2 22 29 29 31 10 5 1 11 1 19 31 1990 1011.5 1002.7 1007.5 1000.5 1004.0 999.0 999.7 1000.5 1004.7 1008.5 1011.5 1012.3 999.0 DAY 17 15 24 15 11 26 4 8 1 1 1 18 1991 1006.7 1009.5 1004.0 1004.9 1000.8 997.1 998.8 1000.6 1004.0 1013.6 1012.4 1010.1 997.1 DAY 24 20 6 4 22 11 13 11 8 4 5 12 1992 1008.5 1002.7 1002.1 1004.9 1007.6 999.8 999.7 1000.7 1006.8 1010.5 1008.3 1013.3 999.7 DAY 2 24 30 17 20 27 18 1 17 5 25 19 1993 1010.1 1007.6 1007.3 1004.9 1008.3 1002.0 1001.4 1002.1 1004.7 1011.3 1007.7 1014.7 1001.4 DAY 8 3 21 20 2 3 12 12 3 2 10 5 1994 1009.8 1007.9 1003.4 1007.3 1006.2 999.9 997.4 998.2 1006.0 1012.9 1009.2 1004.8 997.4 DAY 16 12 7 2 1 25 30 2 1 2 25 3 1995 1013.3 1006.6 1004.6 1005.7 1007.9 1000.6 995.7 1000.6 1005.0 1009.1 1008.5 1017.1 995.7 DAY 11 5 25 16 5 22 16 22 19 12 25 25 1996 1013.2 1007.3 1008.6 1006.0 1004.8 1001.9 1000.6 1001.9 1003.2 1009.2 1015.2 1015.3 1000.6 DAY 6 10 25 13 29 19 6 8 21 27 6 24 1997 1006.3 1008.6 1000.9 1003.3 1004.7 1000.2 996.9 999.7 1004.0 1011.7 1015.4 1010.2 996.9 DAY 16 22 29 10 4 30 16 5 2 2 19 10 1998 1007.7 1007.2 1002.3 1004.7 1003.8 1003.5 997.4 1003.5 1004.5 1008.4 1012.2 1015.4 997.4 DAY 12 13 18 23 29 29 4 21 3 1 1 31 1999 1012.4 1003.3 1006.6 1002.1 1000.5 997.7 999.9 1002.8 1004.0 1012.2 1011.6 1014.7 997.7 DAY 9 20 21 8 20 24 22 13 15 19 25 15 2000 1005.8 1009.3 1004.7 1008.6 1001.3 998.6 998.6 1000.2 1002.1 1012.0 1015.6 1012.5 998.6 DAY 21 6 24 22 26 24 11 30 1 12 21 15 2001 1015.7 1001.3 1003.2 1004.0 1001.2 998.6 997.9 1002.2 1003.9 1011.2 1004.8 1014.3 997.9 DAY 19 21 25 12 29 17 10 27 5 1 18 5 2002 1011.7 1007.7 1005.4 1002.4 1005.0 998.4 999.1 999.7 1006.9 1010.6 1013.0 1005.9 998.4 DAY 7 26 22 3 29 20 24 7 10 21 13 21 2003 1004.7 1005.0 1002.2 1006.2 1007.9 998.9 998.5 1004.7 1005.1 1008.7 1013.4 1011.9 998.5 DAY 28 20 26 27 7 30 24 1 7 27 13 6 2004 1008.4 1004.6 1006.6 1005.2 999.1 1002.3 1003.7 1001.1 1006.6 1012.6 1005.5 1012.2 999.1 DAY 23 15 31 16 15 17 24 4 11 3 23 16 2005 1008.8 1009.1 1006.8 1006.2 1003.1 997.8 997.2 999.7 1004.5 1008.6 1015.5 1012.3 997.2 DAY 23 1 24 3 5 20 5 7 5 20 8 25 1986-2005 1004.7 1001.3 1000.8 1000.5 999.1 997.1 995.7 998.2 1002.1 1008.2 1004.8 1003.7 995.7 YEAR-DAY 3-28 1-21 89-29 90-15 4-15 91-11 95-16 94- 2 0- 1 87- 4 1-18 88-26 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 121 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFF PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1017.4 1011.4 1008.4 999.1 1000.7 1004.1 1010.4 1015.2 1020.1 1023.7 ****** 1987 1022.9 1019.2 1011.7 1011.1 1007.8 1001.1 1000.2 1000.3 1007.5 1019.6 1021.4 1022.1 1012.1 1988 1021.7 1018.9 1011.2 1011.4 1005.3 999.0 995.7 998.4 1006.1 1015.1 1019.1 1020.1 1010.2 1989 1023.0 1025.2 1013.1 1011.6 1007.6 999.1 998.5 999.7 1005.4 1014.2 1019.1 1019.7 1011.4 1990 1022.8 1017.7 1017.4 1008.6 1004.7 998.4 997.8 998.8 1004.4 1014.8 1019.6 1022.0 1010.6 1991 1021.6 1021.7 1014.9 1010.1 1004.4 1000.2 996.5 999.4 1007.5 1015.6 1020.2 1020.8 1011.1 1992 1023.2 1017.0 1017.4 1009.8 1010.2 1001.0 997.4 1002.7 1009.4 1014.4 1020.0 1021.5 1012.0 1993 1024.1 1019.8 1016.1 1009.9 1008.2 1001.0 999.3 1002.0 1005.6 1019.0 1021.1 1024.0 1012.5 1994 1021.1 1017.3 1013.1 1011.5 1007.3 997.9 994.3 996.8 1011.2 1017.3 1017.0 1024.1 1010.7 1995 1021.9 1017.6 1013.9 1010.1 1009.4 1000.7 993.9 998.3 1005.7 1015.3 1018.3 1024.8 1010.8 1996 1024.9 1017.7 1014.9 1012.1 1007.9 1000.5 1001.2 1001.6 1003.3 1015.1 1023.8 1023.1 1012.2 1997 1019.1 1019.5 1012.4 1009.3 1008.3 999.9 993.8 998.8 1007.0 1013.5 1020.9 1021.3 1010.3 1998 1020.8 1019.4 1013.8 1009.9 1007.7 1002.4 997.4 1001.7 1005.6 1015.3 1019.2 1024.0 1011.4 1999 1022.5 1016.2 1013.5 1010.1 1005.0 998.5 997.4 1000.6 1004.8 1012.8 1020.2 1026.1 1010.6 2000 1020.6 1019.3 1014.0 1008.8 1002.6 999.2 999.6 1000.4 1004.5 1016.0 1022.7 1022.8 1010.9 2001 1024.2 1018.9 1013.0 1007.9 1003.9 998.8 997.7 1001.2 1006.5 1013.5 1019.5 1022.8 1010.7 2002 1022.8 1018.8 1013.9 1009.4 1005.1 999.7 999.0 997.4 1005.5 1012.5 1020.2 1021.6 1010.5 2003 1020.6 1015.4 1013.9 1010.8 1008.7 999.2 993.4 1000.6 1006.2 1011.7 1021.0 1024.6 1010.5 2004 1017.9 1016.4 1014.9 1010.2 1005.2 999.4 998.9 998.0 1007.7 1015.8 1017.6 1022.2 1010.4 2005 1020.9 1019.0 1011.5 1011.7 1006.6 999.1 996.5 999.1 1004.0 1014.0 1020.6 1022.0 1010.4 MEAN 1021.9 1018.7 1014.1 1010.3 1006.7 999.7 997.5 1000.0 1006.4 1015.0 1020.1 1022.7 1011.1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 122 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFF PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1028.3 1022.1 1015.3 1007.9 1004.9 1009.7 1015.1 1020.5 1028.1 1034.4 ****** DAY ** ** 16 5 18 2 15 31 22 14 15 6 1987 1032.1 1027.7 1021.8 1018.9 1013.8 1004.9 1008.5 1007.2 1014.3 1029.7 1037.8 1034.9 1037.8 DAY 12 12 22 1 12 27 28 7 25 28 30 1 1988 1034.7 1032.0 1020.3 1023.8 1012.2 1005.7 1002.7 1004.5 1014.5 1025.4 1027.0 1032.7 1034.7 DAY 3 6 17 9 5 8 31 21 30 16 15 29 1989 1032.0 1034.7 1019.3 1018.5 1016.0 1003.3 1003.7 1006.4 1019.3 1024.7 1025.5 1027.3 1034.7 DAY 30 4 8 1 1 7 22 19 23 24 22 18 1990 1032.3 1028.5 1028.6 1017.6 1012.0 1006.9 1002.0 1003.2 1010.1 1025.7 1029.5 1036.8 1036.8 DAY 26 7 20 3 15 1 9 2 27 19 22 28 1991 1029.9 1034.9 1024.6 1018.1 1013.8 1006.6 1001.2 1004.7 1016.7 1020.7 1027.2 1032.0 1034.9 DAY 11 15 12 14 24 23 11 27 27 21 27 17 1992 1035.6 1025.9 1033.4 1016.4 1023.3 1007.6 1006.9 1013.2 1015.4 1021.1 1026.6 1029.7 1035.6 DAY 9 15 12 2 2 8 14 31 30 30 4 28 1993 1032.4 1027.9 1023.3 1014.7 1017.0 1010.5 1005.4 1006.5 1012.8 1024.3 1029.3 1029.6 1032.4 DAY 6 9 23 16 9 22 27 30 23 17 30 6 1994 1030.5 1029.8 1019.6 1027.6 1013.3 1004.0 1000.0 1001.6 1021.6 1024.1 1022.5 1034.7 1034.7 DAY 9 18 3 5 7 8 2 22 23 23 1 7 1995 1030.0 1023.6 1023.8 1015.3 1017.1 1009.3 997.7 1003.5 1013.9 1026.0 1026.7 1030.5 1030.5 DAY 7 13 3 6 29 1 3 10 22 25 30 10 1996 1032.4 1023.4 1020.3 1023.8 1012.8 1007.3 1004.6 1010.4 1013.4 1024.6 1037.9 1032.3 1037.9 DAY 9 13 28 5 6 27 3 30 25 19 18 3 1997 1029.0 1029.4 1026.7 1017.9 1015.6 1008.0 998.0 1004.7 1013.4 1019.4 1031.2 1031.9 1031.9 DAY 19 7 11 13 12 14 8 28 14 9 7 28 1998 1027.6 1032.1 1022.1 1018.9 1017.9 1009.1 1006.3 1006.5 1012.6 1024.6 1026.5 1030.9 1032.1 DAY 22 23 4 12 2 16 21 3 12 10 21 9 1999 1036.2 1024.5 1023.7 1016.9 1010.7 1004.9 1003.2 1007.4 1014.6 1022.2 1033.1 1033.5 1036.2 DAY 2 12 18 11 23 8 28 20 29 26 30 5 2000 1029.2 1028.7 1022.4 1014.8 1007.5 1006.9 1008.4 1006.7 1015.3 1023.7 1032.6 1029.4 1032.6 DAY 30 10 3 2 2 13 30 20 29 16 17 4 2001 1030.8 1031.1 1024.4 1016.4 1013.3 1011.2 1004.0 1007.2 1017.0 1022.0 1029.4 1028.4 1031.1 DAY 30 9 1 1 5 12 29 14 22 27 20 22 2002 1031.7 1028.6 1028.3 1018.1 1010.6 1007.4 1004.4 1004.5 1012.4 1018.3 1030.1 1031.0 1031.7 DAY 14 5 11 1 2 25 29 31 30 31 18 14 2003 1027.3 1023.3 1030.0 1016.0 1018.8 1006.7 1001.0 1005.0 1016.0 1017.6 1033.8 1035.6 1035.6 DAY 22 28 2 30 2 6 3 4 27 15 25 12 2004 1024.6 1023.8 1023.4 1017.4 1012.8 1007.3 1005.3 1004.0 1016.1 1022.9 1026.6 1034.3 1034.3 DAY 12 8 9 10 22 6 18 30 30 27 28 3 2005 1029.1 1029.1 1019.2 1024.5 1011.7 1005.4 1003.1 1005.2 1007.1 1023.5 1026.1 1033.7 1033.7 DAY 13 15 26 6 13 10 28 31 28 24 27 29 1986-2005 1036.2 1034.9 1033.4 1027.6 1023.3 1011.2 1008.5 1013.2 1021.6 1029.7 1037.9 1036.8 1037.9 YEAR-DAY 99- 2 91-15 92-12 94- 5 92- 2 1-12 87-28 92-31 94-23 87-28 96-18 90-28 96-18 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 123 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFF PRESSURE IN HPA AT 1500 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** 1009.3 1005.9 1001.9 994.1 993.1 999.7 1006.7 1008.2 1008.9 1010.8 ****** DAY ** ** 7 30 31 17 20 15 25 1 10 30 1987 1013.8 1010.6 1003.2 1001.6 1000.5 997.6 993.7 995.3 1001.5 1005.2 1007.3 1013.5 993.7 DAY 2 10 19 4 22 9 3 25 6 4 7 23 1988 1012.8 1006.1 1003.6 1002.1 999.8 992.4 988.5 993.3 999.6 1008.7 1009.9 1007.0 988.5 DAY 26 2 4 24 24 16 21 2 11 20 10 26 1989 1014.8 1014.2 1001.0 1007.1 996.2 993.3 992.2 993.4 997.5 1004.8 1014.3 1014.4 992.2 DAY 3 22 29 15 31 30 5 1 11 1 19 4 1990 1013.8 1004.3 1004.9 997.7 999.3 991.5 992.6 993.9 999.3 1004.5 1010.3 1014.9 991.5 DAY 1 15 14 15 11 26 29 8 1 1 1 18 1991 1008.8 1011.1 1004.7 1003.6 996.2 990.6 992.1 993.7 998.1 1011.4 1011.4 1011.4 990.6 DAY 24 20 6 4 22 11 13 6 8 4 5 4 1992 1012.2 1004.0 1002.3 1002.6 1003.5 993.1 992.0 993.3 1003.1 1007.7 1007.6 1016.1 992.0 DAY 2 24 30 22 20 27 18 1 17 5 25 19 1993 1015.4 1008.9 1007.7 1000.8 1003.1 996.1 994.1 995.3 998.9 1007.6 1007.4 1017.0 994.1 DAY 8 3 21 20 17 3 12 12 3 3 10 28 1994 1012.5 1010.1 1002.6 1003.0 1001.9 993.2 988.8 990.8 999.8 1009.3 1009.3 1006.8 988.8 DAY 16 1 7 26 13 25 30 2 1 2 25 3 1995 1015.7 1005.8 1003.7 1003.8 1003.5 993.9 987.4 993.5 999.3 1005.4 1009.1 1019.3 987.4 DAY 11 5 25 16 5 22 16 22 19 4 11 26 1996 1015.5 1008.1 1008.1 1003.3 999.1 995.3 993.2 995.4 997.8 1007.8 1015.5 1015.8 993.2 DAY 6 10 25 13 29 19 7 8 8 27 28 25 1997 1007.6 1009.0 1001.6 1002.3 1000.9 993.3 988.6 992.2 998.0 1007.6 1015.7 1012.2 988.6 DAY 16 22 29 10 4 30 11 14 2 2 19 10 1998 1012.4 1007.2 1001.7 1002.4 998.9 996.3 990.2 996.6 998.9 1004.4 1011.1 1016.3 990.2 DAY 12 7 18 23 21 29 4 21 3 1 1 31 1999 1014.9 1002.9 1005.2 998.9 994.4 990.8 992.2 996.4 998.4 1008.6 1010.1 1016.7 990.8 DAY 9 20 26 8 20 24 4 13 15 20 1 15 2000 1007.9 1011.2 1002.8 1004.8 995.0 992.0 990.2 994.0 996.3 1009.5 1016.1 1014.7 990.2 DAY 21 25 24 20 26 24 11 30 1 12 1 15 2001 1018.5 1003.2 1002.0 1001.5 995.5 991.9 989.2 995.9 997.7 1008.3 1004.1 1016.7 989.2 DAY 4 21 24 12 29 17 10 27 5 1 18 5 2002 1013.3 1006.4 1002.9 1001.9 999.0 991.2 990.5 991.8 1001.0 1006.6 1010.7 1007.6 990.5 DAY 7 26 27 3 29 19 24 7 10 21 13 21 2003 1006.7 1007.1 1000.8 1002.1 1003.0 991.2 989.8 996.6 999.3 1003.6 1011.1 1012.7 989.8 DAY 28 20 26 27 7 30 24 1 7 27 1 6 2004 1009.4 1002.0 1003.8 1000.9 994.1 995.1 995.5 993.3 999.1 1009.4 1004.1 1013.2 993.3 DAY 23 15 31 16 15 17 2 12 11 2 23 16 2005 1010.7 1009.1 1005.4 1001.3 999.7 989.4 988.2 990.7 998.0 1004.5 1014.2 1012.6 988.2 DAY 3 1 23 3 5 20 5 7 5 20 5 25 1986-2005 1006.7 1002.0 1000.8 997.7 994.1 989.4 987.4 990.7 996.3 1003.6 1004.1 1006.8 987.4 YEAR-DAY 3-28 4-15 3-26 90-15 4-15 5-20 95-16 5- 7 0- 1 3-27 1-18 94- 3 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 124 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** 1016.4 1010.4 1007.3 998.1 999.8 1003.0 1009.4 1014.3 1019.0 1022.9 ****** 1987 1021.9 1018.1 1010.7 1010.1 1006.8 1000.3 999.2 999.4 1006.5 1018.5 1020.4 1021.2 1011.1 1988 1020.6 1017.9 1010.2 1010.4 1004.5 998.2 994.9 997.4 1005.3 1014.2 1018.1 1019.1 1009.2 1989 1022.3 1024.3 1011.9 1010.9 1006.8 998.2 997.5 998.8 1004.6 1013.3 1018.2 1018.6 1010.4 1990 1022.0 1016.8 1016.6 1007.8 1003.9 997.5 996.8 997.8 1003.6 1013.8 1018.7 1021.1 1009.7 1991 1020.6 1020.7 1013.9 1009.3 1003.6 999.4 995.5 998.6 1006.6 1014.6 1019.3 1019.8 1010.2 1992 1022.4 1016.2 1016.4 1008.8 1009.1 1000.1 996.4 1001.8 1008.5 1013.5 1019.0 1020.6 1011.1 1993 1023.4 1018.7 1015.1 1009.0 1007.3 1000.1 998.4 1000.9 1004.8 1018.1 1020.2 1022.9 1011.6 1994 1020.1 1016.3 1012.2 1010.6 1006.3 997.0 993.4 996.0 1010.3 1016.3 1015.8 1023.4 1009.8 1995 1021.1 1016.6 1012.9 1009.2 1008.5 999.8 992.9 997.2 1004.8 1014.4 1017.5 1024.1 1009.9 1996 1024.1 1016.7 1013.8 1010.8 1006.9 999.7 1000.2 1000.2 1002.5 1014.2 1022.7 1022.3 1011.2 1997 1018.3 1018.7 1011.6 1008.4 1007.4 999.0 992.9 998.0 1006.4 1012.6 1019.9 1020.3 1009.5 1998 1019.9 1018.6 1013.0 1009.0 1006.8 1001.4 996.5 1000.6 1004.7 1014.3 1018.2 1023.1 1010.5 1999 1021.6 1015.3 1012.6 1009.2 1004.2 997.7 996.5 999.6 1004.0 1012.0 1019.3 1025.1 1009.8 2000 1019.7 1018.5 1013.1 1007.9 1001.7 998.4 998.6 999.4 1003.6 1015.0 1021.7 1021.7 1009.9 2001 1023.4 1017.9 1012.1 1007.0 1003.1 997.8 996.7 1000.0 1005.6 1012.5 1018.5 1021.8 1009.7 2002 1021.9 1017.9 1013.0 1008.3 1004.2 999.2 998.4 997.3 1005.5 1012.5 1020.2 1021.7 1010.0 2003 1020.6 1015.4 1013.9 1010.8 1008.7 999.1 993.4 1000.5 1006.1 1011.7 1020.9 1024.5 1010.5 2004 1017.9 1016.5 1014.9 1010.2 1005.1 999.4 998.9 998.0 1007.7 1015.7 1017.6 1022.2 1010.3 2005 1020.9 1019.0 1011.5 1011.7 1006.6 999.1 996.5 999.1 1004.0 1014.0 1020.6 1022.0 1010.4 MEAN 1021.2 1017.9 1013.3 1009.5 1005.9 999.0 996.7 999.2 1005.7 1014.3 1019.3 1021.9 1010.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 125 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** 1027.4 1020.8 1014.4 1007.1 1003.7 1008.6 1014.1 1019.5 1027.2 1033.5 ****** DAY ** ** 16 5 18 2 15 31 22 14 15 6 1987 1031.2 1026.9 1020.9 1017.8 1012.6 1003.9 1007.2 1006.1 1013.4 1028.6 1036.9 1034.1 1036.9 DAY 12 12 22 1 12 27 28 7 25 28 30 1 1988 1034.0 1031.1 1019.4 1022.8 1011.3 1004.5 1001.7 1003.1 1013.0 1024.2 1026.4 1032.0 1034.0 DAY 3 6 17 9 5 7 31 21 25 16 15 29 1989 1031.2 1033.4 1018.1 1017.4 1013.7 1002.5 1002.9 1005.4 1018.5 1023.7 1024.6 1026.3 1033.4 DAY 30 4 8 1 1 2 22 19 23 24 22 18 1990 1032.4 1027.5 1027.6 1016.4 1011.3 1006.1 1001.0 1002.1 1009.4 1024.7 1028.5 1036.0 1036.0 DAY 26 7 20 3 15 1 19 2 27 19 22 28 1991 1028.9 1034.2 1023.6 1017.0 1012.7 1005.7 1000.1 1003.9 1015.8 1019.5 1026.3 1031.0 1034.2 DAY 11 15 12 14 24 23 11 27 27 21 27 17 1992 1034.9 1025.1 1032.1 1015.4 1022.1 1006.5 1001.4 1012.1 1014.5 1020.2 1025.5 1029.0 1034.9 DAY 9 15 12 2 2 8 14 31 30 30 4 28 1993 1031.5 1027.0 1022.4 1013.8 1016.0 1009.5 1004.2 1005.4 1011.8 1023.4 1028.5 1028.8 1031.5 DAY 6 9 23 16 9 22 27 30 23 17 30 6 1994 1029.6 1028.9 1018.8 1026.8 1012.3 1003.3 999.1 1000.8 1020.8 1022.9 1021.5 1035.2 1035.2 DAY 9 18 3 5 7 8 2 22 23 23 1 7 1995 1030.2 1022.4 1023.0 1014.5 1015.9 1008.9 996.7 1002.8 1012.9 1025.0 1026.6 1029.6 1030.2 DAY 7 13 3 7 29 1 3 10 22 26 28 10 1996 1031.4 1022.5 1019.2 1022.8 1011.8 1006.2 1003.6 1009.3 1012.3 1023.6 1035.9 1031.5 1035.9 DAY 9 13 28 5 6 27 3 30 25 19 18 3 1997 1028.3 1028.7 1025.9 1017.0 1014.4 1006.8 996.8 1003.8 1013.0 1018.6 1030.2 1031.0 1031.0 DAY 19 7 11 13 12 14 8 28 15 9 7 28 1998 1026.7 1031.3 1021.1 1018.0 1016.6 1008.1 1005.3 1005.5 1011.4 1023.6 1025.6 1029.9 1031.3 DAY 22 23 4 12 2 16 21 9 12 10 21 9 1999 1035.4 1023.6 1022.8 1016.0 1010.0 1004.2 1002.2 1006.5 1013.6 1021.1 1032.2 1032.6 1035.4 DAY 2 12 18 11 23 8 28 20 30 26 30 5 2000 1028.3 1028.0 1021.6 1013.9 1006.8 1006.0 1007.6 1005.7 1014.3 1022.6 1031.7 1028.3 1031.7 DAY 30 10 3 1 2 13 30 20 29 16 17 4 2001 1032.4 1030.2 1023.5 1015.4 1012.0 1010.0 1002.8 1006.3 1016.1 1020.8 1028.6 1027.5 1032.4 DAY 29 9 1 2 5 12 29 14 22 27 20 22 2002 1031.0 1027.8 1027.5 1017.1 1009.6 1006.4 1004.4 1004.5 1012.4 1018.3 1030.1 1031.1 1031.1 DAY 14 5 11 1 2 25 29 31 30 31 18 14 2003 1027.2 1023.3 1029.9 1016.0 1018.8 1006.6 1001.0 1004.6 1016.0 1017.5 1033.7 1035.4 1035.4 DAY 22 28 2 30 2 6 3 30 27 15 25 12 2004 1024.7 1023.8 1023.4 1017.3 1012.8 1007.3 1005.3 1004.0 1016.1 1023.0 1026.6 1034.3 1034.3 DAY 12 8 9 10 22 6 18 30 30 27 28 3 2005 1029.2 1029.1 1019.2 1024.5 1011.7 1005.4 1003.0 1005.2 1007.1 1023.6 1026.1 1033.7 1033.7 DAY 13 15 26 6 13 10 28 31 28 24 27 29 1986-2005 1035.4 1034.2 1032.1 1026.8 1022.1 1010.0 1007.6 1012.1 1020.8 1028.6 1036.9 1036.0 1036.9 YEAR-DAY 99- 2 91-15 92-12 94- 5 92- 2 1-12 0-30 92-31 94-23 87-28 87-30 90-28 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 126 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** 1008.0 1004.9 1001.1 992.9 992.2 998.7 1005.6 1007.1 1008.1 1009.8 ****** DAY ** ** 7 30 31 17 20 4 25 1 7 30 1987 1012.9 1009.2 1002.0 1000.5 999.6 996.6 992.7 994.6 1000.8 1004.3 1006.2 1012.3 992.7 DAY 2 10 19 4 22 9 3 25 6 4 7 23 1988 1011.8 1005.0 1002.3 1001.3 999.1 991.6 990.6 992.4 998.7 1007.6 1009.1 1006.1 990.6 DAY 26 2 4 24 24 16 18 2 11 20 10 26 1989 1014.1 1013.1 1000.0 1006.4 995.7 992.5 991.4 992.8 996.8 1004.1 1013.2 1013.1 991.4 DAY 2 22 29 15 31 30 5 1 11 1 19 4 1990 1012.8 1003.4 1006.8 996.9 998.6 990.7 992.0 993.3 998.4 1003.7 1009.3 1013.8 990.7 DAY 1 15 24 15 11 26 29 8 1 1 1 18 1991 1007.9 1010.1 1003.7 1002.3 995.6 989.8 991.0 993.0 997.4 1010.3 1010.5 1010.4 989.8 DAY 24 20 6 4 22 11 13 6 8 4 5 4 1992 1011.2 1003.0 1001.1 1001.8 1002.7 992.1 991.3 992.6 1002.2 1007.0 1006.7 1015.3 991.3 DAY 2 24 30 22 20 27 18 1 17 5 25 19 1993 1014.4 1007.9 1006.7 1000.1 1002.1 995.5 993.3 994.2 998.2 1007.2 1006.4 1015.9 993.3 DAY 8 3 21 20 17 3 12 12 3 2 10 28 1994 1011.6 1009.1 1001.8 1002.0 1001.1 992.3 988.8 990.1 999.0 1008.1 1008.0 1005.6 988.8 DAY 16 1 7 26 13 25 30 2 2 2 25 3 1995 1014.7 1005.1 1002.2 1003.0 1002.5 993.1 986.7 992.7 998.5 1004.6 1008.2 1019.5 986.7 DAY 11 5 25 16 5 22 16 22 19 4 11 25 1996 1014.4 1007.1 1006.9 1002.6 998.3 994.7 992.4 994.7 997.0 1007.0 1014.5 1014.8 992.4 DAY 6 10 25 13 29 19 7 8 8 27 6 25 1997 1006.6 1008.1 1000.5 1001.6 999.8 992.5 987.9 991.5 997.3 1006.7 1014.7 1011.1 987.9 DAY 16 22 29 9 4 30 11 14 2 2 19 10 1998 1011.6 1006.4 1000.5 1001.2 998.0 995.6 989.5 995.6 998.1 1003.5 1010.2 1015.4 989.5 DAY 12 8 18 21 29 29 5 21 3 1 1 31 1999 1013.8 1001.9 1004.5 998.3 993.9 990.0 991.5 995.4 997.9 1008.2 1011.5 1015.7 990.0 DAY 9 20 26 8 20 24 4 13 15 19 25 15 2000 1007.1 1010.1 1001.8 1004.0 994.3 991.2 989.1 992.9 995.5 1008.3 1015.0 1013.6 989.1 DAY 21 25 24 20 26 24 11 30 1 12 1 15 2001 1017.4 1002.4 1000.9 1000.7 994.9 990.8 989.0 994.9 996.6 1007.5 1003.1 1015.6 989.0 DAY 4 21 25 26 29 17 10 27 5 1 18 5 2002 1012.1 1005.8 1002.4 1001.0 998.5 990.9 990.5 991.8 1001.0 1006.7 1010.7 1007.5 990.5 DAY 7 26 27 3 29 20 24 7 10 21 13 21 2003 1006.7 1007.1 1000.8 1002.1 1003.0 991.2 989.5 996.6 999.3 1003.5 1011.1 1011.7 989.5 DAY 28 20 26 27 7 30 24 1 7 27 1 6 2004 1009.4 1002.0 1003.7 1000.9 994.1 995.0 995.5 993.2 999.2 1009.4 1004.1 1013.3 993.2 DAY 23 15 31 16 15 17 2 12 11 2 23 16 2005 1010.7 1009.9 1005.4 1001.6 999.6 989.4 988.2 990.8 997.4 1004.5 1014.1 1012.6 988.2 DAY 3 1 23 3 5 20 5 7 5 20 5 25 1986-2005 1006.6 1001.9 1000.0 996.9 993.9 989.4 986.7 990.1 995.5 1003.5 1003.1 1005.6 986.7 YEAR-DAY 97-16 99-20 89-29 90-15 99-20 5-20 95-16 94- 2 0- 1 98- 1 1-18 94- 3 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 127 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFE PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 913.8 912.4 906.1 908.1 910.4 914.7 917.7 918.2 919.5 ****** 1987 919.4 917.2 911.7 913.8 913.0 908.5 907.9 907.9 912.5 919.6 920.0 918.7 914.2 1988 917.9 916.3 911.7 913.7 911.0 906.7 904.3 905.9 911.7 916.9 918.0 917.0 912.6 1989 918.3 920.2 913.0 914.7 912.3 906.5 906.6 907.3 910.7 916.6 918.2 917.0 913.4 1990 918.7 915.2 917.3 911.5 910.4 906.1 905.8 906.6 909.7 916.7 918.7 918.7 912.9 1991 917.9 918.0 914.2 913.3 ****** 907.5 904.6 906.7 912.7 917.2 919.1 916.9 ****** 1992 918.1 914.1 915.5 911.9 913.4 907.6 905.1 909.3 913.3 916.2 918.5 917.8 913.4 1993 919.1 916.8 914.9 912.8 912.5 907.8 907.1 908.8 910.9 919.7 918.6 920.5 914.1 1994 917.8 915.0 913.7 914.0 912.1 905.5 902.9 905.0 915.2 918.9 916.0 919.9 913.0 1995 918.8 915.9 914.0 912.2 914.0 907.9 902.4 906.0 911.0 916.6 917.2 920.6 913.0 1996 920.1 915.4 913.5 914.1 912.7 907.8 908.6 908.3 909.5 916.6 921.5 920.2 914.0 1997 916.2 916.5 912.3 911.9 913.2 907.5 903.0 906.7 912.5 916.3 919.3 918.1 912.8 1998 916.5 916.8 914.1 912.9 912.6 909.6 905.9 909.0 911.1 917.0 918.7 921.0 913.8 1999 919.0 914.7 913.5 913.2 911.0 906.6 905.7 908.3 910.3 915.5 918.6 922.5 913.2 2000 916.9 916.8 913.8 912.7 908.9 906.5 907.4 907.8 910.4 917.1 920.6 919.3 913.2 2001 920.0 916.4 913.9 912.0 909.5 906.1 905.7 908.4 912.0 916.0 918.0 919.9 913.2 2002 918.9 917.3 914.3 911.6 910.4 907.5 907.3 905.9 912.1 915.9 919.9 918.6 913.3 2003 918.2 914.2 914.2 914.0 913.9 906.8 903.2 908.6 911.8 915.4 920.0 921.6 913.5 2004 915.9 916.2 916.4 913.3 911.0 907.9 907.5 906.8 913.5 918.5 917.8 919.3 913.7 2005 918.1 916.6 913.4 915.2 912.5 907.2 905.7 907.6 910.4 917.2 919.7 920.0 913.6 MEAN 918.2 916.3 914.0 913.1 911.9 907.2 905.7 907.6 911.8 917.1 918.8 919.4 913.4 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 128 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFE PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 920.5 917.7 913.7 912.2 915.6 918.6 922.5 925.3 930.4 ****** DAY ** ** ** 5 19 2 3 24 22 14 15 6 1987 926.8 923.5 919.3 918.7 917.5 912.2 912.9 914.7 917.8 926.6 931.5 930.1 931.5 DAY 12 6 23 22 12 27 28 7 25 28 30 1 1988 927.0 927.5 918.5 923.1 915.3 912.2 909.3 911.2 916.8 924.6 923.6 925.8 927.5 DAY 3 6 16 8 5 8 31 21 14 16 15 29 1989 925.4 927.4 918.6 918.8 916.8 910.4 911.2 912.7 920.5 923.2 922.6 923.0 927.4 DAY 30 3 7 10 14 3 20 19 23 24 8 18 1990 927.6 924.2 925.3 917.2 914.9 911.4 909.0 910.4 914.2 925.0 926.9 928.0 928.0 DAY 26 7 20 3 16 4 17 2 27 15 23 28 1991 925.8 928.0 920.4 918.4 ****** 912.8 909.1 910.6 918.8 921.0 923.4 925.2 ****** DAY 12 15 12 14 ** 22 11 27 27 20 23 17 1992 928.6 921.9 925.8 916.0 921.0 913.0 908.6 917.0 918.5 921.4 925.3 923.4 928.6 DAY 9 15 12 7 2 6 14 31 1 29 3 28 1993 927.0 923.6 919.9 916.8 918.6 916.3 912.0 912.8 916.5 924.5 925.0 925.5 927.0 DAY 6 9 17 16 8 22 27 28 23 16 21 26 1994 926.3 924.0 918.2 924.6 916.7 910.1 908.2 908.9 922.4 924.1 921.9 928.1 928.1 DAY 9 18 3 5 17 8 13 15 22 23 1 7 1995 925.7 920.6 921.2 917.0 918.5 914.2 907.3 910.0 917.0 925.2 923.0 925.8 925.8 DAY 7 13 2 6 28 1 3 24 21 25 15 10 1996 926.5 920.2 918.4 921.5 917.0 913.0 913.0 916.5 917.0 923.7 931.6 927.0 931.6 DAY 9 23 28 4 7 27 3 29 25 18 18 3 1997 923.5 924.0 923.5 917.7 918.6 912.0 907.0 911.2 917.2 921.0 928.9 926.0 928.9 DAY 19 7 11 13 11 14 19 28 14 9 7 28 1998 923.0 928.1 919.8 921.4 919.2 915.4 912.4 912.0 916.4 923.6 924.5 926.7 928.1 DAY 22 22 28 11 3 16 20 2 12 10 21 9 1999 929.4 921.3 921.3 918.0 915.5 911.4 909.6 914.4 916.9 921.7 927.5 928.7 929.4 DAY 2 12 18 10 27 8 27 19 30 26 30 5 2000 925.3 924.5 920.1 917.2 913.0 912.6 914.0 913.0 919.0 922.9 928.2 925.0 928.2 DAY 30 10 3 4 7 16 30 20 29 15 16 4 2001 924.7 926.2 922.6 920.0 914.1 912.9 911.1 913.2 919.0 922.8 923.5 924.0 926.2 DAY 29 9 1 1 5 12 29 11 21 10 20 22 2002 925.6 925.1 925.7 918.0 914.3 914.0 912.0 911.7 917.2 920.1 927.7 927.3 927.7 DAY 25 5 10 1 17 24 29 31 21 10 18 4 2003 922.9 921.4 925.6 919.1 920.7 912.9 908.8 911.5 919.4 920.5 929.5 930.6 930.6 DAY 11 12 2 30 2 6 3 3 26 15 25 11 2004 922.1 921.0 923.0 919.2 916.5 914.1 912.6 911.4 918.7 922.9 923.6 929.9 929.9 DAY 12 8 9 10 3 5 7 30 26 27 28 3 2005 924.5 924.4 918.5 922.9 916.1 912.0 910.5 912.2 912.6 923.5 924.0 928.1 928.1 DAY 9 15 26 6 18 8 28 31 19 23 23 29 1986-2005 929.4 928.1 925.8 924.6 921.0 916.3 914.0 917.0 922.4 926.6 931.6 930.6 931.6 YEAR-DAY 99- 2 98-22 92-12 94- 5 92- 2 93-22 0-30 92-31 94-22 87-28 96-18 3-11 96-18 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 129 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFE PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 909.3 908.0 901.7 902.2 906.7 911.0 912.1 909.8 909.3 ****** DAY ** ** ** 10 30 17 20 4 5 1 7 30 1987 910.7 909.9 902.9 905.2 906.7 905.0 903.2 903.6 908.1 909.3 911.0 910.1 902.9 DAY 2 10 13 4 22 9 2 25 2 4 7 23 1988 910.5 906.2 903.2 906.1 906.6 900.2 899.6 901.9 905.6 909.3 912.7 903.7 899.6 DAY 28 1 4 30 24 29 16 29 11 30 10 26 1989 912.0 910.7 903.5 911.2 905.4 901.5 901.5 899.4 905.4 909.8 913.4 912.1 899.4 DAY 11 22 29 28 31 30 6 1 11 1 19 4 1990 911.0 906.0 909.8 903.2 905.3 900.4 901.2 901.5 906.5 909.5 912.0 913.0 900.4 DAY 17 15 24 15 11 26 2 8 4 1 1 22 1991 908.6 909.0 904.4 906.8 ****** 900.2 898.8 902.0 905.5 914.3 913.0 910.0 ****** DAY 25 20 6 9 ** 11 13 6 7 3 4 4 1992 907.3 903.6 905.4 906.2 907.8 901.9 900.7 903.0 908.0 910.9 907.2 914.5 900.7 DAY 2 24 30 17 9 24 18 1 17 5 25 19 1993 909.6 908.5 907.6 907.0 908.4 903.7 903.2 903.0 906.5 912.4 907.9 914.7 903.0 DAY 8 3 21 20 2 3 12 12 2 2 10 4 1994 909.3 909.0 906.6 908.3 907.5 902.0 898.5 900.0 907.7 914.0 907.0 903.0 898.5 DAY 16 8 12 2 1 25 30 1 1 14 25 3 1995 913.8 907.9 906.1 907.0 909.0 901.9 897.2 901.8 906.5 910.4 909.4 916.5 897.2 DAY 11 5 25 16 5 29 16 22 19 12 25 25 1996 912.9 908.1 908.7 908.0 907.3 904.0 901.5 903.3 904.5 910.5 915.2 914.5 901.5 DAY 6 10 25 10 29 19 6 8 21 5 6 24 1997 907.3 910.0 904.4 904.4 905.2 901.5 898.2 902.0 906.2 912.4 915.2 910.0 898.2 DAY 31 22 29 9 4 30 15 5 2 6 18 9 1998 906.0 907.2 905.0 906.0 905.0 905.0 899.6 904.4 905.8 909.2 913.0 914.9 899.6 DAY 12 7 18 21 21 28 4 21 4 1 1 31 1999 912.2 903.9 907.3 905.9 904.1 899.1 901.8 903.7 904.5 912.5 911.4 913.8 899.1 DAY 9 20 21 8 19 24 22 13 15 31 25 15 2000 907.3 907.7 904.7 910.1 903.2 901.7 900.2 902.0 903.2 913.1 915.2 912.3 900.2 DAY 21 6 24 6 26 24 11 30 1 1 21 15 2001 915.7 903.9 904.1 906.0 902.3 899.9 899.5 904.1 905.9 911.0 904.9 914.1 899.5 DAY 19 21 25 12 29 17 10 23 5 6 18 5 2002 910.5 907.8 906.1 904.2 905.6 900.0 901.2 900.8 907.5 910.5 913.3 905.5 900.0 DAY 7 26 27 3 19 20 24 17 10 21 11 21 2003 905.8 906.5 903.9 907.2 909.1 899.7 899.7 905.8 905.9 910.2 913.2 912.4 899.7 DAY 28 19 26 27 7 30 24 6 6 27 13 6 2004 908.3 908.9 907.9 905.8 900.5 903.9 904.8 902.0 907.4 913.0 907.8 912.2 900.5 DAY 23 15 31 16 15 17 9 3 11 2 23 15 2005 910.1 908.0 907.0 907.5 905.0 899.9 898.7 900.7 905.7 910.3 914.3 911.1 898.7 DAY 24 1 23 26 5 20 5 7 5 20 5 23 1986-2005 905.8 903.6 902.9 903.2 900.5 899.1 897.2 899.4 903.2 909.2 904.9 903.0 897.2 YEAR-DAY 3-28 92-24 87-13 90-15 4-15 99-24 95-16 89- 1 0- 1 98- 1 1-18 94- 3 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 130 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QNH PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1014.7 1013.1 1006.4 1008.5 1011.1 1015.7 1019.0 1019.5 1020.9 ****** 1987 1020.8 1018.4 1012.4 1014.7 1013.9 1009.0 1008.3 1008.3 1013.3 1021.0 1021.5 1020.1 1015.1 1988 1019.2 1017.4 1012.4 1014.6 1011.6 1007.0 1004.4 1006.2 1012.4 1018.1 1019.3 1018.2 1013.4 1989 1019.6 1021.7 1013.9 1015.6 1013.1 1006.8 1006.9 1007.6 1011.4 1017.7 1019.5 1018.2 1014.3 1990 1020.0 1016.2 1018.5 1012.3 1011.0 1006.3 1006.0 1006.9 1010.2 1017.9 1020.0 1020.1 1013.8 1991 1019.2 1019.3 1015.1 1014.2 ****** 1007.8 1004.7 1007.0 1013.6 1018.5 1020.4 1018.1 ****** 1992 1019.4 1015.0 1016.6 1012.7 1014.2 1008.0 1005.3 1009.8 1014.2 1017.3 1019.8 1019.1 1014.3 1993 1020.5 1018.0 1016.0 1013.6 1013.3 1008.2 1007.4 1009.3 1011.6 1021.1 1020.0 1022.0 1015.1 1994 1019.0 1016.0 1014.6 1015.0 1012.9 1005.6 1002.9 1005.1 1016.3 1020.3 1017.1 1021.3 1013.8 1995 1020.1 1017.0 1014.9 1013.0 1015.0 1008.3 1002.3 1006.3 1011.7 1017.7 1018.4 1022.1 1013.9 1996 1021.6 1016.4 1014.4 1015.0 1013.6 1008.2 1009.0 1008.7 1010.0 1017.8 1023.1 1021.6 1015.0 1997 1017.3 1017.7 1013.1 1012.7 1014.1 1007.9 1003.0 1007.0 1013.3 1017.4 1020.7 1019.4 1013.6 1998 1017.7 1018.0 1015.1 1013.8 1013.4 1010.1 1006.1 1009.5 1011.8 1018.2 1020.1 1022.5 1014.7 1999 1020.3 1015.7 1014.4 1014.0 1011.6 1006.8 1005.9 1008.7 1010.9 1016.6 1020.0 1024.2 1014.1 2000 1018.1 1018.0 1014.7 1013.5 1009.4 1006.8 1007.7 1008.1 1011.0 1018.3 1022.2 1020.6 1014.0 2001 1021.5 1017.5 1014.8 1012.7 1010.0 1006.4 1005.9 1008.8 1012.8 1017.1 1019.3 1021.4 1014.0 2002 1020.3 1018.6 1015.3 1012.4 1011.0 1007.9 1007.7 1006.1 1012.9 1017.0 1021.3 1020.0 1014.2 2003 1019.5 1015.2 1015.2 1014.9 1014.9 1007.1 1003.1 1009.1 1012.5 1016.5 1021.4 1023.2 1014.4 2004 1017.0 1017.4 1017.6 1014.1 1011.6 1008.3 1007.9 1007.1 1014.4 1019.9 1019.1 1020.7 1014.6 2005 1019.4 1017.8 1014.2 1016.2 1013.3 1007.6 1005.9 1008.0 1011.0 1018.4 1021.2 1021.5 1014.5 MEAN 1019.5 1017.4 1014.9 1014.0 1012.7 1007.5 1005.9 1007.9 1012.5 1018.3 1020.2 1020.8 1014.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 131 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QNH PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1022.0 1019.0 1014.6 1013.0 1016.7 1019.9 1024.2 1027.2 1032.8 ****** DAY ** ** ** 5 19 2 3 24 22 14 15 6 1987 1028.9 1025.3 1020.7 1020.1 1018.7 1013.0 1013.7 1015.7 1019.1 1028.6 1034.0 1032.5 1034.0 DAY 12 6 23 22 12 27 28 7 25 28 30 1 1988 1029.1 1029.6 1019.8 1024.8 1016.3 1013.0 1009.8 1011.9 1018.0 1026.5 1025.4 1027.8 1029.6 DAY 3 6 16 8 5 8 31 21 14 16 15 29 1989 1027.3 1029.5 1019.9 1020.2 1018.0 1011.0 1011.9 1013.5 1022.0 1024.9 1024.3 1024.7 1029.5 DAY 30 3 7 10 14 3 20 19 23 24 8 18 1990 1029.7 1026.0 1027.2 1018.4 1015.9 1012.1 1009.5 1011.0 1015.2 1026.9 1029.0 1030.2 1030.2 DAY 26 7 20 3 16 4 17 2 27 15 23 28 1991 1027.8 1030.2 1021.9 1019.7 ****** 1013.6 1009.6 1011.2 1020.2 1022.6 1025.2 1027.1 ****** DAY 12 15 12 14 ** 22 11 27 27 20 23 17 1992 1030.8 1023.5 1027.8 1017.1 1022.6 1013.8 1009.1 1018.2 1019.8 1023.0 1027.2 1025.2 1030.8 DAY 9 15 12 7 2 6 14 31 1 29 3 28 1993 1029.1 1025.4 1021.4 1018.0 1019.9 1017.4 1012.8 1013.6 1017.7 1026.4 1026.9 1027.5 1029.1 DAY 6 9 17 16 8 22 27 28 23 16 21 26 1994 1028.3 1025.8 1019.5 1026.5 1017.9 1010.7 1008.6 1009.4 1024.1 1025.9 1023.5 1030.3 1030.3 DAY 9 18 3 5 17 8 13 15 22 23 1 7 1995 1027.7 1022.1 1022.8 1018.2 1019.8 1015.2 1007.6 1010.6 1018.2 1027.1 1024.7 1027.8 1027.8 DAY 7 13 2 6 28 1 3 24 21 25 15 10 1996 1028.5 1021.7 1019.7 1023.1 1018.2 1013.8 1013.8 1017.7 1018.2 1025.5 1034.1 1029.1 1034.1 DAY 9 23 28 4 7 27 3 29 25 18 18 3 1997 1025.3 1025.8 1025.3 1019.0 1019.9 1012.8 1007.3 1011.9 1018.4 1022.6 1031.2 1028.0 1031.2 DAY 19 7 11 13 11 14 19 28 14 9 7 28 1998 1024.7 1030.3 1021.2 1023.0 1020.6 1016.5 1013.2 1012.8 1017.5 1025.4 1026.4 1028.8 1030.3 DAY 22 22 28 11 3 16 20 2 12 10 21 9 1999 1031.7 1022.9 1022.9 1019.3 1016.6 1012.1 1010.1 1015.4 1018.1 1023.3 1029.6 1030.9 1031.7 DAY 2 12 18 10 27 8 27 19 30 26 30 5 2000 1027.2 1026.4 1021.6 1018.4 1013.8 1013.4 1014.9 1013.8 1020.4 1024.6 1030.4 1026.9 1030.4 DAY 30 10 3 4 7 16 30 20 29 15 16 4 2001 1026.6 1028.2 1024.3 1021.5 1015.0 1013.7 1011.8 1014.1 1020.4 1024.5 1025.3 1025.8 1028.2 DAY 29 9 1 1 5 12 29 11 21 10 20 22 2002 1027.6 1027.0 1027.7 1019.3 1015.3 1014.9 1012.8 1012.4 1018.4 1021.6 1029.8 1029.4 1029.8 DAY 25 5 10 1 17 24 29 31 21 10 18 4 2003 1024.6 1023.0 1027.6 1020.5 1022.2 1013.7 1009.3 1012.2 1020.8 1022.0 1031.8 1033.0 1033.0 DAY 11 12 2 30 2 6 3 3 26 15 25 11 2004 1023.8 1022.6 1024.7 1020.6 1017.7 1015.0 1013.4 1012.1 1020.1 1024.6 1025.4 1032.2 1032.2 DAY 12 8 9 10 3 5 7 30 26 27 28 3 2005 1026.4 1026.3 1019.8 1024.6 1017.2 1012.8 1011.1 1013.0 1013.4 1025.3 1025.8 1030.3 1030.3 DAY 9 15 26 6 18 8 28 31 19 23 23 29 1986-2005 1031.7 1030.3 1027.8 1026.5 1022.6 1017.4 1014.9 1018.2 1024.1 1028.6 1034.1 1033.0 1034.1 YEAR-DAY 99- 2 98-22 92-12 94- 5 92- 2 93-22 0-30 92-31 94-22 87-28 96-18 3-11 96-18 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 132 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QNH PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1009.8 1008.4 1001.5 1002.1 1007.0 1011.7 1012.9 1010.4 1009.8 ****** DAY ** ** ** 10 30 17 20 4 5 1 7 30 1987 1011.3 1010.5 1002.8 1005.4 1007.0 1005.1 1003.2 1003.6 1008.5 1009.8 1011.7 1010.7 1002.8 DAY 2 10 13 4 22 9 2 25 2 4 7 23 1988 1011.1 1006.4 1003.2 1006.3 1006.9 999.9 999.3 1001.8 1005.8 1009.8 1013.5 1003.7 999.3 DAY 28 1 4 30 24 29 16 29 11 30 10 26 1989 1012.8 1011.3 1003.5 1011.9 1005.6 1001.3 1001.3 999.0 1005.6 1010.4 1014.3 1012.9 999.0 DAY 11 22 29 28 31 30 6 1 11 1 19 4 1990 1011.7 1006.2 1010.4 1003.2 1005.5 1000.1 1001.0 1001.3 1006.8 1010.0 1012.8 1013.8 1000.1 DAY 17 15 24 15 11 26 2 8 4 1 1 22 1991 1009.1 1009.5 1004.5 1007.1 ****** 999.9 998.4 1001.9 1005.7 1015.3 1013.8 1010.6 ****** DAY 25 20 6 9 ** 11 13 6 7 3 4 4 1992 1007.6 1003.6 1005.6 1006.4 1008.2 1001.8 1000.5 1003.0 1008.4 1011.6 1007.5 1015.5 1000.5 DAY 2 24 30 17 9 24 18 1 17 5 25 19 1993 1010.1 1008.9 1008.0 1007.3 1008.8 1003.7 1003.2 1003.0 1006.8 1013.2 1008.3 1015.7 1003.0 DAY 8 3 21 20 2 3 12 12 2 2 10 4 1994 1009.8 1009.5 1006.9 1008.7 1007.9 1001.9 998.1 999.7 1008.1 1014.9 1007.3 1003.0 998.1 DAY 16 8 12 2 1 25 30 1 1 14 25 3 1995 1014.7 1008.3 1006.3 1007.3 1009.5 1001.8 996.6 1001.6 1006.8 1011.0 1009.9 1017.7 996.6 DAY 11 5 25 16 5 29 16 22 19 12 25 25 1996 1013.7 1008.5 1009.2 1008.4 1007.6 1004.0 1001.3 1003.3 1004.6 1011.1 1016.2 1015.5 1001.3 DAY 6 10 25 10 29 19 6 8 21 5 6 24 1997 1007.6 1010.6 1004.5 1004.5 1005.4 1001.3 997.7 1001.9 1006.4 1013.2 1016.2 1010.6 997.7 DAY 31 22 29 9 4 30 15 5 2 6 18 9 1998 1006.2 1007.5 1005.1 1006.2 1005.1 1005.1 999.3 1004.5 1006.0 1009.7 1013.8 1015.9 999.3 DAY 12 7 18 21 21 28 4 21 4 1 1 31 1999 1013.0 1003.9 1007.6 1006.1 1004.2 998.7 1001.6 1003.7 1004.6 1013.3 1012.1 1014.7 998.7 DAY 9 20 21 8 19 24 22 13 15 31 25 15 2000 1007.6 1008.1 1004.8 1010.7 1003.2 1001.5 999.9 1001.9 1003.2 1014.0 1016.2 1013.1 999.9 DAY 21 6 24 6 26 24 11 30 1 1 21 15 2001 1016.8 1003.9 1004.2 1006.2 1002.2 999.6 999.1 1004.2 1006.1 1011.7 1005.0 1015.0 999.1 DAY 19 21 25 12 29 17 10 23 5 6 18 5 2002 1011.1 1008.2 1006.3 1004.3 1005.8 999.7 1001.0 1000.6 1007.9 1011.1 1014.2 1005.7 999.7 DAY 7 26 27 3 19 20 24 17 10 21 11 21 2003 1006.0 1006.8 1003.9 1007.5 1009.6 999.4 999.4 1006.0 1006.1 1010.8 1014.1 1013.2 999.4 DAY 28 19 26 27 7 30 24 6 6 27 13 6 2004 1008.7 1009.4 1008.3 1006.0 1000.2 1003.9 1004.9 1001.9 1007.7 1013.8 1008.2 1013.0 1000.2 DAY 23 15 31 16 15 17 9 3 11 2 23 15 2005 1010.7 1008.4 1007.3 1007.9 1005.1 999.6 998.3 1000.5 1005.9 1010.9 1015.3 1011.8 998.3 DAY 24 1 23 26 5 20 5 7 5 20 5 23 1986-2005 1006.0 1003.6 1002.8 1003.2 1000.2 998.7 996.6 999.0 1003.2 1009.7 1005.0 1003.0 996.6 YEAR-DAY 3-28 92-24 87-13 90-15 4-15 99-24 95-16 89- 1 0- 1 98- 1 1-18 94- 3 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 133 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFF PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1012.5 1009.3 1000.3 1001.5 1004.9 1011.2 1016.2 1020.5 1024.5 ****** 1987 1023.8 1020.2 1012.7 1012.4 1008.9 1002.3 1001.6 1001.6 1008.6 1020.1 1022.0 1022.8 1013.1 1988 1022.3 1019.8 1012.2 1012.7 1006.7 1000.5 997.1 999.4 1007.5 1015.8 1019.9 1020.9 1011.2 1989 1024.3 1026.2 1014.1 1012.6 1008.7 1000.0 999.4 1000.8 1006.5 1015.1 1019.8 1020.5 1012.3 1990 1023.8 1018.9 1019.0 1010.0 1006.1 999.5 998.9 999.9 1005.0 1015.6 1020.5 1023.1 1011.7 1991 1022.5 1022.3 1015.7 1011.4 ****** 1001.5 997.5 1000.6 1008.8 1016.0 1021.2 1021.5 ****** 1992 1024.1 1018.1 1018.6 1010.8 1011.5 1002.1 997.9 1003.8 1010.0 1015.3 1020.6 1022.1 1012.9 1993 1025.0 1020.7 1016.9 1011.3 1009.5 1002.0 1000.3 1002.7 1006.5 1019.5 1021.6 1024.7 1013.4 1994 1021.7 1018.4 1014.2 1012.3 1008.6 999.4 995.5 998.1 1011.9 1018.2 1017.3 1025.1 1011.7 1995 1023.0 1018.8 1014.7 1010.6 1011.0 1002.4 994.6 999.1 1006.8 1015.8 1019.2 1025.8 1011.8 1996 1025.8 1018.5 1015.5 1013.4 1009.1 1001.9 1002.2 1002.0 1004.5 1015.9 1024.3 1024.1 1013.1 1997 1020.2 1020.4 1013.9 1010.4 1009.6 1001.3 995.2 999.9 1008.4 1014.2 1021.5 1021.9 1011.4 1998 1021.4 1020.4 1015.4 1011.1 1009.2 1003.4 998.8 1002.6 1006.6 1016.0 1020.1 1024.9 1012.5 1999 1023.4 1017.0 1014.5 1011.5 1006.6 1000.0 999.1 1001.6 1005.8 1013.6 1021.0 1026.7 1011.7 2000 1021.4 1020.4 1015.0 1010.0 1003.9 1000.3 1000.5 1001.3 1005.7 1016.5 1023.3 1023.3 1011.8 2001 1025.0 1019.8 1014.0 1009.2 1005.2 999.9 998.8 1002.0 1007.5 1014.4 1019.8 1023.4 1011.6 2002 1023.5 1019.8 1014.7 1010.3 1006.5 1001.0 999.9 998.2 1006.4 1012.9 1020.9 1022.3 1011.4 2003 1021.5 1016.4 1014.7 1011.8 1010.0 999.8 994.3 1001.3 1006.8 1012.4 1021.6 1025.1 1011.3 2004 1018.7 1017.7 1015.7 1011.2 1006.4 1000.5 999.9 999.0 1008.5 1016.5 1018.4 1023.0 1011.3 2005 1022.0 1019.8 1012.8 1012.6 1008.0 999.9 997.2 1000.1 1004.8 1014.8 1021.1 1022.9 1011.3 MEAN 1022.8 1019.7 1015.0 1011.4 1008.1 1000.9 998.5 1000.9 1007.4 1015.7 1020.7 1023.4 1012.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 134 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFF PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1022.3 1014.9 1009.5 1006.0 1010.9 1016.2 1021.1 1028.4 1037.4 ****** DAY ** ** ** 5 19 2 3 24 22 14 15 6 1987 1033.2 1027.8 1022.1 1020.4 1014.6 1006.1 1009.3 1009.1 1015.5 1029.9 1038.2 1036.8 1038.2 DAY 12 12 22 1 19 27 28 7 24 28 30 1 1988 1033.9 1033.9 1020.1 1025.0 1013.7 1007.1 1004.1 1005.5 1015.0 1026.1 1028.2 1033.3 1033.9 DAY 3 6 17 8 5 8 27 21 30 16 15 29 1989 1034.0 1035.6 1020.6 1019.6 1019.8 1004.8 1004.7 1007.7 1019.3 1024.6 1025.9 1027.5 1035.6 DAY 30 3 7 1 14 3 20 19 23 24 22 18 1990 1033.6 1029.4 1028.9 1018.4 1011.7 1005.9 1002.7 1004.4 1010.4 1025.8 1030.9 1037.1 1037.1 DAY 26 7 20 3 15 4 19 2 27 19 23 28 1991 1032.1 1035.0 1024.1 1018.9 ****** 1006.7 1003.3 1005.9 1017.6 1020.7 1027.6 1030.2 ****** DAY 12 15 12 14 ** 22 11 27 27 16 27 17 1992 1037.7 1027.1 1033.2 1018.0 1023.6 1009.3 1002.6 1014.0 1016.1 1021.8 1027.9 1030.1 1037.7 DAY 9 15 12 7 2 8 14 31 30 29 3 28 1993 1032.6 1028.7 1023.0 1014.8 1018.0 1012.7 1006.1 1007.4 1013.1 1025.3 1030.0 1030.6 1032.6 DAY 6 9 23 16 8 22 27 25 23 16 30 26 1994 1031.8 1030.6 1020.4 1027.6 1015.0 1005.1 1002.0 1001.9 1021.2 1025.1 1022.3 1036.4 1036.4 DAY 9 18 1 5 17 5 13 15 23 23 1 7 1995 1030.7 1024.6 1023.8 1017.3 1017.6 1010.4 1000.7 1004.5 1015.0 1026.9 1028.2 1030.9 1030.9 DAY 7 13 2 6 29 1 3 24 21 26 28 19 1996 1033.1 1024.9 1020.9 1025.1 1014.5 1008.8 1007.2 1011.9 1013.9 1027.6 1037.3 1033.7 1037.3 DAY 25 3 28 4 7 26 13 29 25 18 18 3 1997 1029.7 1030.3 1027.1 1019.2 1016.2 1006.5 999.5 1005.8 1015.0 1019.6 1031.6 1032.4 1032.4 DAY 19 7 11 12 11 14 7 28 14 9 7 28 1998 1028.8 1033.2 1023.2 1021.2 1019.5 1010.1 1006.4 1006.5 1013.4 1025.8 1026.7 1031.0 1033.2 DAY 22 22 4 6 3 16 20 3 12 10 21 9 1999 1035.9 1025.3 1024.9 1019.0 1011.5 1006.2 1005.2 1008.2 1014.6 1023.2 1033.4 1034.4 1035.9 DAY 2 12 18 10 23 16 15 19 30 26 30 5 2000 1031.3 1030.6 1023.4 1016.6 1008.9 1009.6 1008.2 1007.6 1016.0 1024.4 1031.9 1029.5 1031.9 DAY 30 10 3 1 2 13 30 20 29 15 16 4 2001 1030.9 1031.4 1025.8 1018.3 1012.0 1011.2 1004.8 1008.1 1017.7 1023.1 1029.3 1029.3 1031.4 DAY 28 9 11 1 5 12 29 11 21 27 20 22 2002 1031.9 1029.5 1028.5 1017.3 1011.4 1009.2 1005.4 1005.7 1013.1 1017.3 1030.7 1032.0 1032.0 DAY 14 5 10 1 17 24 2 31 30 10 18 4 2003 1027.8 1024.6 1030.4 1018.1 1022.1 1008.6 1000.8 1005.3 1016.0 1018.3 1034.2 1036.0 1036.0 DAY 22 12 2 30 1 6 3 30 26 15 25 11 2004 1025.0 1024.1 1023.7 1017.8 1013.0 1007.9 1005.9 1005.0 1016.2 1023.3 1027.0 1035.3 1035.3 DAY 12 8 9 10 3 5 7 30 30 27 28 3 2005 1030.4 1029.7 1020.8 1024.9 1012.1 1006.5 1003.0 1007.2 1008.4 1023.8 1026.9 1034.3 1034.3 DAY 13 15 26 6 21 8 28 31 30 23 27 29 1986-2005 1037.7 1035.6 1033.2 1027.6 1023.6 1012.7 1009.3 1014.0 1021.2 1029.9 1038.2 1037.4 1038.2 YEAR-DAY 92- 9 89- 3 92-12 94- 5 92- 2 93-22 87-28 92-31 94-23 87-28 87-30 86- 6 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 135 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFF PRESSURE IN HPA AT 1800 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1008.0 1003.5 994.9 994.3 1000.3 1007.3 1010.0 1009.2 1012.6 ****** DAY ** ** ** 10 30 16 20 15 25 11 7 30 1987 1014.8 1012.6 1003.5 1002.2 1001.6 998.7 996.1 996.9 1002.6 1005.6 1009.6 1012.4 996.1 DAY 2 10 13 19 22 9 2 25 2 3 7 23 1988 1012.6 1007.4 1003.2 1003.1 1000.9 993.0 991.6 994.2 1000.8 1007.7 1010.5 1007.4 991.6 DAY 28 1 4 24 24 29 16 29 11 30 10 26 1989 1016.0 1013.8 1003.7 1007.1 998.7 993.1 993.8 991.8 999.6 1006.7 1014.5 1013.7 991.8 DAY 11 22 29 28 31 30 6 1 11 1 19 4 1990 1015.1 1007.3 1009.2 999.5 999.7 992.0 994.2 993.8 1000.7 1006.0 1011.9 1015.7 992.0 DAY 1 19 24 15 11 26 2 8 1 1 1 18 1991 1011.8 1010.4 1005.9 1004.3 ****** 993.0 992.7 994.0 999.8 1010.7 1012.2 1011.7 ****** DAY 25 20 6 9 ** 11 13 6 7 2 5 4 1992 1011.9 1005.0 1005.1 1004.1 1004.9 994.5 992.4 995.6 1003.8 1008.1 1006.8 1017.7 992.4 DAY 2 24 30 17 31 27 18 1 17 5 25 19 1993 1015.9 1010.6 1008.7 1002.3 1004.1 997.3 994.3 996.0 1000.3 1008.6 1007.2 1018.5 994.3 DAY 8 3 21 20 19 15 25 12 2 2 10 28 1994 1012.6 1011.1 1006.9 1005.6 1001.9 994.4 989.6 991.4 1001.1 1010.5 1007.2 1005.3 989.6 DAY 16 12 12 24 12 25 30 1 1 1 25 3 1995 1017.3 1007.8 1003.6 1004.7 1004.6 995.9 987.8 993.5 1000.2 1006.6 1010.3 1021.6 987.8 DAY 11 5 25 16 5 21 16 22 19 4 11 25 1996 1016.4 1009.6 1009.1 1006.4 1001.6 997.1 993.9 996.6 999.3 1008.1 1014.4 1016.1 993.9 DAY 6 10 25 12 29 19 6 7 8 26 7 25 1997 1010.6 1011.0 1005.4 1002.2 1000.5 993.9 988.9 993.8 1000.0 1008.7 1016.9 1012.7 988.9 DAY 16 22 25 9 4 30 15 14 2 2 5 9 1998 1010.3 1007.4 1005.3 1003.1 999.5 997.3 991.8 996.9 999.9 1005.7 1012.1 1016.7 991.8 DAY 12 7 18 21 21 28 5 21 5 1 10 31 1999 1015.6 1003.5 1007.0 1003.4 997.9 991.8 993.6 996.3 998.5 1009.8 1013.3 1017.2 991.8 DAY 9 20 21 13 19 24 3 13 15 12 25 15 2000 1009.6 1011.0 1002.6 1005.6 996.2 994.4 991.3 995.1 996.9 1010.8 1016.7 1015.7 991.3 DAY 21 6 24 30 26 24 11 3 1 1 2 11 2001 1019.7 1005.1 1001.4 1002.5 995.7 992.3 991.7 996.7 999.4 1008.4 1004.3 1017.4 991.7 DAY 4 21 24 12 29 17 9 23 5 6 18 5 2002 1012.2 1006.8 1002.6 1003.6 999.8 991.4 992.1 992.1 1001.9 1006.0 1011.4 1007.4 991.4 DAY 7 26 27 25 29 19 24 17 10 21 11 21 2003 1008.0 1008.8 1003.1 1003.6 1003.8 991.5 990.1 997.5 999.5 1005.9 1011.9 1014.2 990.1 DAY 28 20 26 27 7 30 24 6 7 27 1 6 2004 1010.2 1008.0 1005.0 1001.3 995.1 995.3 996.2 994.0 1000.3 1009.6 1007.9 1015.2 994.0 DAY 23 15 30 16 15 29 2 3 11 2 23 16 2005 1011.9 1009.2 1005.6 1001.2 1001.1 991.1 989.4 991.1 998.8 1006.2 1013.0 1012.1 989.4 DAY 24 1 23 26 5 20 5 7 4 20 5 25 1986-2005 1008.0 1003.5 1001.4 999.5 995.1 991.1 987.8 991.1 996.9 1005.6 1004.3 1005.3 987.8 YEAR-DAY 3-28 99-20 1-24 90-15 4-15 5-20 95-16 5- 7 0- 1 87- 3 1-18 94- 3 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 136 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1011.4 1008.3 999.3 1000.5 1003.8 1010.1 1015.1 1019.5 1023.6 ****** 1987 1022.7 1019.2 1011.7 1011.3 1007.9 1001.4 1000.5 1000.5 1007.6 1019.0 1020.9 1021.7 1012.0 1988 1021.4 1018.8 1011.3 1011.6 1005.9 999.6 996.1 998.4 1006.5 1014.9 1018.9 1019.9 1010.3 1989 1023.4 1025.3 1013.0 1011.8 1007.6 999.1 998.4 999.8 1005.7 1014.2 1018.7 1019.4 1011.4 1990 1023.0 1017.9 1018.0 1009.0 1005.2 998.6 997.9 998.9 1004.1 1014.6 1019.4 1022.2 1010.7 1991 1021.6 1021.5 1014.6 1010.5 ****** 1000.6 996.5 999.7 1007.8 1015.1 1020.2 1020.6 ****** 1992 1023.3 1017.2 1017.6 1009.9 1010.5 1001.1 996.9 1002.8 1009.1 1014.4 1019.6 1021.1 1012.0 1993 1024.2 1019.7 1015.8 1010.2 1008.4 1001.1 999.4 1001.7 1005.7 1018.7 1020.6 1023.7 1012.4 1994 1020.8 1017.4 1013.3 1011.3 1007.6 998.5 994.5 997.1 1011.0 1017.1 1016.2 1024.2 1010.8 1995 1021.9 1017.9 1013.7 1009.5 1010.0 1001.4 993.7 998.1 1005.8 1015.1 1018.3 1025.1 1010.9 1996 1025.0 1017.5 1014.5 1012.4 1008.1 1000.9 1001.1 1001.0 1003.7 1014.8 1023.4 1023.2 1012.1 1997 1019.4 1019.8 1012.9 1009.5 1008.7 1000.4 994.2 999.0 1007.6 1013.3 1020.4 1020.9 1010.5 1998 1020.4 1019.5 1014.5 1010.2 1008.1 1002.4 997.7 1001.5 1005.7 1015.0 1019.1 1023.9 1011.5 1999 1022.5 1016.1 1013.5 1010.6 1005.8 999.1 998.1 1000.6 1004.9 1012.6 1020.0 1025.9 1010.8 2000 1020.6 1019.6 1014.0 1009.0 1003.1 999.5 999.4 1000.2 1004.7 1015.5 1022.2 1022.3 1010.8 2001 1024.2 1018.8 1013.1 1008.3 1004.2 998.8 997.7 1000.9 1006.6 1013.5 1018.8 1022.4 1010.6 2002 1022.6 1018.9 1013.8 1009.3 1005.6 1000.5 999.4 998.1 1006.4 1012.9 1020.9 1022.3 1010.9 2003 1021.4 1016.4 1014.7 1011.8 1009.9 999.8 994.3 1001.2 1006.7 1012.3 1021.5 1025.0 1011.3 2004 1018.7 1017.7 1015.7 1011.2 1006.4 1000.5 999.9 998.9 1008.5 1016.5 1018.4 1023.0 1011.3 2005 1021.9 1019.8 1012.8 1012.6 1008.0 1000.0 997.2 1000.0 1004.8 1014.8 1021.1 1022.9 1011.3 MEAN 1022.0 1018.9 1014.1 1010.6 1007.3 1000.1 997.7 1000.1 1006.7 1015.0 1019.9 1022.7 1011.3 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 137 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1020.9 1013.8 1008.5 1005.0 1009.5 1015.2 1020.1 1027.6 1036.4 ****** DAY ** ** ** 5 19 2 15 24 22 14 15 6 1987 1032.2 1027.0 1021.2 1019.3 1013.3 1005.1 1007.9 1007.8 1014.6 1028.8 1037.3 1035.9 1037.3 DAY 12 12 22 1 19 28 28 7 24 28 30 1 1988 1032.9 1033.0 1019.4 1024.0 1012.6 1006.2 1003.0 1004.3 1013.9 1025.0 1027.5 1032.5 1033.0 DAY 3 6 16 8 5 8 27 21 30 16 15 29 1989 1033.2 1035.0 1019.5 1018.6 1015.1 1003.9 1003.6 1006.6 1018.4 1023.6 1025.0 1026.6 1035.0 DAY 30 3 7 1 1 3 28 19 23 24 22 18 1990 1034.7 1029.0 1030.3 1017.2 1011.0 1004.9 1001.6 1003.6 1009.5 1024.9 1029.9 1036.4 1036.4 DAY 26 7 20 3 15 1 19 29 27 19 23 28 1991 1031.1 1034.2 1023.1 1018.0 ****** 1005.7 1002.1 1004.9 1016.7 1019.4 1026.8 1031.0 ****** DAY 12 15 12 14 ** 22 11 27 27 16 27 17 1992 1036.1 1026.3 1032.4 1017.0 1022.5 1008.4 1001.3 1013.0 1015.2 1021.0 1027.0 1029.5 1036.1 DAY 9 15 12 7 2 8 14 31 30 29 3 28 1993 1031.6 1027.7 1022.0 1013.7 1016.9 1011.7 1004.9 1006.3 1012.2 1024.3 1029.2 1029.6 1031.6 DAY 6 9 23 4 8 22 27 25 23 16 30 26 1994 1030.9 1029.9 1019.4 1026.7 1013.9 1004.0 1000.8 1000.8 1020.4 1024.0 1021.3 1035.8 1035.8 DAY 9 18 1 5 17 7 1 15 23 23 9 7 1995 1029.1 1023.8 1022.9 1016.5 1016.4 1009.4 999.6 1003.3 1014.0 1025.9 1027.4 1029.9 1029.9 DAY 7 13 2 6 29 1 3 24 21 26 28 10 1996 1032.3 1024.1 1019.8 1024.0 1013.4 1007.7 1005.1 1010.5 1012.8 1023.8 1036.1 1032.8 1036.1 DAY 25 3 28 4 7 27 3 29 25 19 18 3 1997 1029.4 1029.6 1026.2 1018.4 1015.1 1005.3 998.3 1005.0 1014.2 1018.7 1030.5 1031.6 1031.6 DAY 19 7 11 12 6 14 7 28 14 9 7 28 1998 1028.0 1032.3 1022.2 1020.2 1018.3 1008.8 1005.4 1005.7 1012.2 1024.6 1026.0 1030.0 1032.3 DAY 22 22 4 6 3 16 20 2 12 10 24 9 1999 1034.8 1024.3 1024.1 1018.1 1010.7 1005.3 1003.9 1007.1 1013.7 1022.1 1033.5 1033.6 1034.8 DAY 2 12 18 10 23 16 15 19 30 26 30 5 2000 1030.4 1029.7 1022.6 1015.7 1008.1 1008.9 1007.2 1006.5 1014.9 1023.3 1031.0 1028.3 1031.0 DAY 30 10 3 1 2 13 30 20 29 15 16 4 2001 1033.1 1030.5 1024.8 1017.3 1010.7 1010.0 1003.6 1006.9 1016.8 1022.0 1028.5 1028.4 1033.1 DAY 29 9 11 1 5 12 29 13 21 27 20 22 2002 1031.3 1028.5 1027.6 1016.5 1010.3 1008.2 1005.3 1005.6 1013.1 1017.2 1030.7 1031.9 1031.9 DAY 14 5 10 1 17 24 30 31 30 10 18 4 2003 1027.7 1024.5 1030.4 1018.0 1019.8 1008.6 1000.7 1005.3 1016.0 1018.3 1034.2 1035.9 1035.9 DAY 22 12 2 30 2 6 3 30 26 15 25 12 2004 1025.0 1024.0 1023.7 1017.7 1013.0 1007.9 1005.8 1005.0 1016.3 1023.3 1027.0 1035.3 1035.3 DAY 12 8 9 10 3 5 7 30 30 27 28 3 2005 1030.4 1029.8 1020.7 1024.9 1012.1 1006.5 1003.0 1007.2 1008.4 1023.8 1026.9 1034.3 1034.3 DAY 13 15 26 6 21 8 28 31 30 23 27 29 1986-2005 1036.1 1035.0 1032.4 1026.7 1022.5 1011.7 1007.9 1013.0 1020.4 1028.8 1037.3 1036.4 1037.3 YEAR-DAY 92- 9 89- 3 92-12 94- 5 92- 2 93-22 87-28 92-31 94-23 87-28 87-30 86- 6 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 138 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1006.9 1002.5 994.2 993.3 999.4 1006.1 1008.3 1008.3 1011.6 ****** DAY ** ** ** 10 30 17 20 4 5 1 7 30 1987 1013.5 1011.5 1002.6 1001.0 1000.7 997.8 995.1 995.9 1001.7 1004.7 1008.6 1011.3 995.1 DAY 6 10 13 19 22 9 2 25 2 3 7 23 1988 1011.6 1006.3 1002.0 1002.1 1000.1 992.1 990.6 993.5 1000.0 1006.9 1009.6 1006.6 990.6 DAY 28 2 4 30 24 29 16 29 11 30 10 26 1989 1014.7 1012.7 1002.7 1006.3 998.0 992.3 992.9 991.1 999.0 1005.8 1013.6 1012.4 991.1 DAY 11 22 29 28 31 30 6 1 11 1 19 4 1990 1013.9 1006.3 1008.2 998.7 998.9 991.2 993.2 993.1 999.5 1005.0 1009.5 1014.7 991.2 DAY 1 19 24 15 11 26 2 8 4 1 1 18 1991 1010.7 1009.5 1004.7 1003.3 ****** 991.9 990.7 993.2 999.0 1011.2 1011.3 1010.6 ****** DAY 25 20 6 9 ** 11 13 6 7 4 5 4 1992 1010.2 1003.8 1004.1 1003.2 1003.8 993.8 991.6 994.7 1003.1 1007.4 1005.9 1016.9 991.6 DAY 2 24 30 17 31 27 18 1 17 5 25 19 1993 1015.2 1009.4 1007.5 1001.6 1003.4 996.2 995.0 995.0 999.5 1007.9 1006.2 1017.3 995.0 DAY 8 3 21 20 31 15 14 12 2 2 10 28 1994 1011.7 1010.6 1006.1 1004.7 1002.2 993.5 988.7 990.6 1001.0 1010.7 1006.0 1003.6 988.7 DAY 16 12 12 24 12 25 30 1 1 1 25 3 1995 1016.3 1007.0 1002.7 1003.9 1003.6 993.5 987.0 992.7 999.6 1005.8 1009.7 1020.6 987.0 DAY 11 5 25 16 5 29 16 22 19 4 11 25 1996 1015.5 1008.6 1008.1 1005.5 1000.6 996.3 993.0 995.3 998.4 1007.4 1015.8 1015.1 993.0 DAY 6 10 25 12 29 19 6 8 8 26 6 25 1997 1009.6 1010.0 1004.4 1001.5 999.5 993.2 988.1 993.1 999.3 1007.9 1015.6 1011.6 988.1 DAY 16 22 25 9 4 30 15 14 2 2 5 9 1998 1009.4 1006.4 1004.2 1002.0 998.8 996.5 991.0 996.0 999.3 1004.7 1011.4 1015.6 991.0 DAY 12 7 18 21 21 28 5 21 4 1 10 31 1999 1014.4 1002.5 1006.2 1002.8 997.0 991.0 992.7 995.3 997.8 1009.0 1012.2 1015.6 991.0 DAY 9 20 21 13 19 24 3 13 15 12 25 15 2000 1008.8 1010.2 1001.9 1004.8 995.4 993.7 990.3 993.9 996.0 1009.8 1015.7 1014.7 990.3 DAY 21 6 24 30 26 24 11 30 1 1 2 15 2001 1018.6 1004.0 1000.6 1001.8 995.0 991.3 989.8 995.8 998.4 1007.6 1003.3 1016.3 989.8 DAY 4 21 24 12 29 17 10 23 5 6 18 5 2002 1011.0 1006.1 1001.9 1002.8 999.2 991.5 992.1 992.1 1001.9 1006.1 1011.3 1007.4 991.5 DAY 7 26 27 25 29 19 24 17 10 21 11 21 2003 1007.9 1008.9 1003.1 1003.6 1003.8 991.5 990.1 997.5 999.4 1005.9 1011.8 1013.2 990.1 DAY 28 20 26 27 7 30 24 6 7 27 1 6 2004 1010.2 1008.0 1005.0 1001.3 995.1 995.3 996.2 994.0 1000.3 1009.6 1007.9 1015.2 994.0 DAY 23 15 30 16 15 29 2 3 11 2 23 16 2005 1011.9 1009.2 1005.5 1001.3 1001.0 991.0 989.4 991.1 998.8 1006.2 1013.0 1012.1 989.4 DAY 24 1 23 26 5 20 5 7 4 20 5 25 1986-2005 1007.9 1002.5 1000.6 998.7 995.0 991.0 987.0 990.6 996.0 1004.7 1003.3 1003.6 987.0 YEAR-DAY 3-28 99-20 1-24 90-15 1-29 99-24 95-16 94- 1 0- 1 87- 3 1-18 94- 3 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 139 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFE PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 913.7 912.6 906.7 908.5 910.8 915.0 917.9 918.0 919.4 ****** 1987 919.5 917.2 911.8 914.1 913.3 908.9 908.3 908.4 912.9 919.5 920.2 918.6 914.4 1988 917.8 916.3 911.7 913.6 911.4 907.4 905.2 906.7 912.0 917.1 918.0 917.1 912.9 1989 918.3 920.0 913.2 915.0 912.7 907.2 907.3 907.9 911.2 916.9 918.3 916.9 913.7 1990 918.6 915.0 917.3 911.9 910.9 906.9 906.3 907.2 910.1 917.0 918.9 918.8 913.2 1991 917.9 917.9 914.2 913.4 ****** 907.9 904.9 907.3 913.1 917.4 919.2 917.0 ****** 1992 918.0 914.2 915.4 912.2 913.6 908.1 905.8 909.9 913.8 916.5 918.5 917.7 913.6 1993 919.1 916.8 915.2 912.9 912.6 908.5 907.8 909.3 911.4 919.9 918.5 920.5 914.4 1994 917.5 915.1 913.8 914.4 912.4 906.0 903.6 905.6 915.6 919.1 916.0 919.8 913.2 1995 918.9 916.2 914.3 912.5 914.4 908.2 903.0 906.4 911.3 916.9 917.4 920.6 913.3 1996 920.1 915.3 913.5 914.1 913.2 908.3 909.0 908.8 909.9 916.8 921.6 920.2 914.2 1997 916.3 916.8 912.3 912.1 913.6 908.0 903.8 907.2 912.9 916.3 919.3 918.1 913.0 1998 916.4 916.8 914.2 913.1 913.1 910.1 906.4 909.5 911.5 917.2 918.8 921.0 914.0 1999 919.0 914.9 913.7 913.5 911.4 907.2 906.6 908.7 910.9 915.7 918.7 922.4 913.5 2000 916.9 917.0 914.1 912.9 909.6 907.3 907.9 908.3 910.9 917.3 920.7 919.0 913.5 2001 920.0 916.6 914.1 912.5 909.8 906.7 906.4 908.9 912.5 916.3 917.9 919.8 913.4 2002 918.8 917.5 914.8 911.7 910.7 908.1 908.0 906.6 912.6 916.2 920.0 918.6 913.6 2003 918.2 914.3 914.4 914.2 914.2 907.3 903.7 909.2 912.3 915.8 920.1 921.3 913.7 2004 915.9 916.6 916.6 913.5 911.4 908.4 908.1 907.4 914.1 918.7 917.9 919.1 914.0 2005 917.9 916.6 913.7 915.6 913.0 907.9 906.4 908.2 910.8 917.6 919.7 920.1 913.9 MEAN 918.2 916.4 914.1 913.3 912.3 907.8 906.3 908.1 912.2 917.3 918.9 919.3 913.7 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 140 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFE PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 919.9 918.2 914.3 911.9 915.9 918.8 923.4 925.3 930.6 ****** DAY ** ** ** 5 19 2 15 24 21 14 15 6 1987 926.5 924.2 919.3 919.2 917.5 912.3 912.9 915.5 918.1 926.7 931.5 930.4 931.5 DAY 11 6 22 21 12 27 28 7 25 28 29 1 1988 927.1 927.9 919.9 923.1 916.1 911.8 909.2 911.1 917.4 924.6 923.8 925.3 927.9 DAY 2 6 16 8 16 8 26 21 30 16 15 29 1989 925.7 926.9 918.9 919.4 916.6 911.1 911.3 913.1 921.0 923.4 922.6 923.0 926.9 DAY 30 3 7 1 1 3 19 19 23 24 8 18 1990 926.8 924.7 925.9 916.6 914.8 911.8 909.0 911.3 914.6 925.8 926.6 927.8 927.8 DAY 26 7 20 3 15 1 8 29 27 15 22 27 1991 926.0 927.6 920.0 918.4 ****** 913.0 909.8 911.0 919.2 920.8 923.8 925.2 ****** DAY 12 15 11 14 ** 22 11 22 26 16 24 17 1992 928.6 922.2 925.3 917.0 920.4 914.0 909.8 917.3 918.5 921.8 925.6 923.1 928.6 DAY 4 15 12 7 2 6 14 31 1 29 3 28 1993 927.0 924.0 920.0 916.7 918.6 917.1 913.0 914.1 916.9 924.7 925.0 925.5 927.0 DAY 6 9 16 16 8 22 27 28 15 17 21 26 1994 926.2 924.0 918.0 924.6 918.7 910.1 908.2 909.7 922.5 924.3 922.1 928.1 928.1 DAY 9 18 17 5 17 8 13 15 22 23 1 7 1995 925.2 921.1 921.8 917.0 919.0 913.6 908.4 910.9 917.8 925.4 923.4 925.8 925.8 DAY 7 13 2 6 28 1 3 24 21 25 27 10 1996 927.0 920.5 918.6 921.5 917.0 914.0 914.0 917.0 917.0 923.5 931.4 927.1 931.4 DAY 25 23 28 4 5 26 3 29 25 18 18 3 1997 923.3 924.0 923.5 918.0 919.2 912.0 907.3 911.2 917.3 920.5 928.8 926.0 928.8 DAY 23 7 11 12 11 10 19 28 14 8 7 28 1998 923.0 928.7 919.5 921.8 920.0 916.0 913.0 913.5 916.8 923.8 924.4 926.5 928.7 DAY 22 22 21 11 3 16 19 2 12 9 24 9 1999 929.0 921.5 921.5 918.0 916.2 912.9 911.6 916.3 917.0 922.2 927.5 928.7 929.0 DAY 2 11 18 10 28 16 27 19 29 26 30 5 2000 925.3 925.6 920.1 917.5 914.0 914.0 915.0 912.7 917.5 922.6 928.6 924.3 928.6 DAY 30 10 3 1 6 13 30 20 29 15 16 4 2001 924.4 925.5 922.8 920.4 913.8 913.7 911.0 914.2 919.6 923.0 923.5 924.1 925.5 DAY 29 9 1 1 5 1 28 11 22 10 19 17 2002 926.0 926.0 927.7 918.7 914.8 915.0 912.8 912.1 917.5 920.3 927.7 927.3 927.7 DAY 25 5 10 1 16 24 29 31 21 10 18 4 2003 923.2 921.3 925.6 919.6 920.9 913.2 909.2 912.4 919.5 920.6 929.5 931.1 931.1 DAY 11 28 2 30 1 6 3 30 26 15 25 11 2004 922.1 921.0 922.7 919.4 917.6 914.8 912.0 911.5 919.4 922.8 923.7 929.7 929.7 DAY 11 9 8 10 3 5 17 30 29 26 28 3 2005 924.2 924.6 918.9 924.1 916.5 913.2 911.1 913.7 913.9 923.8 923.6 927.7 927.7 DAY 8 17 26 5 21 8 28 13 30 23 27 29 1986-2005 929.0 928.7 927.7 924.6 920.9 917.1 915.0 917.3 922.5 926.7 931.5 931.1 931.5 YEAR-DAY 99- 2 98-22 2-10 94- 5 3- 1 93-22 0-30 92-31 94-22 87-28 87-29 3-11 87-29 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 141 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFE PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 909.5 908.0 902.7 903.0 907.1 911.8 913.0 909.5 910.7 ****** DAY ** ** ** 10 30 16 20 4 5 1 7 27 1987 910.4 911.2 900.8 906.5 907.0 905.6 904.2 904.1 909.6 909.8 912.5 908.9 900.8 DAY 6 10 13 4 22 9 3 25 1 3 7 23 1988 909.0 907.2 902.6 906.3 906.6 902.2 901.2 902.6 906.3 909.7 912.0 903.8 901.2 DAY 28 1 4 30 27 29 16 29 11 30 19 26 1989 911.5 909.8 904.3 911.2 906.6 902.0 902.2 901.0 906.0 910.0 912.8 910.4 901.0 DAY 2 22 15 28 31 9 5 1 11 1 19 4 1990 911.0 905.1 910.8 904.8 904.5 900.8 902.8 902.7 907.0 910.4 912.4 912.3 900.8 DAY 17 15 24 15 12 26 2 8 5 1 1 24 1991 908.6 909.0 904.4 906.2 ****** 900.4 898.8 903.1 906.0 914.2 913.0 908.6 ****** DAY 25 20 6 9 ** 11 13 11 7 3 4 31 1992 907.1 906.9 904.7 903.8 909.4 902.1 901.3 904.2 908.7 911.6 906.6 914.0 901.3 DAY 2 24 30 17 31 27 18 1 17 5 25 27 1993 909.6 909.1 907.6 908.4 908.6 904.4 902.6 904.0 907.0 912.6 906.5 914.2 902.6 DAY 8 3 21 12 2 3 11 12 2 1 13 4 1994 909.2 908.1 905.8 906.8 908.0 902.2 899.5 900.3 907.7 914.0 904.9 903.2 899.5 DAY 15 11 11 1 1 21 30 1 2 14 25 3 1995 913.5 909.0 905.4 907.0 910.0 902.7 898.1 902.4 906.1 911.0 912.0 917.0 898.1 DAY 11 4 25 16 6 21 16 22 19 11 24 25 1996 913.5 907.7 907.1 908.3 908.1 904.8 902.0 904.0 905.2 909.8 915.3 914.3 902.0 DAY 6 10 25 9 29 18 6 7 19 26 28 24 1997 907.5 910.0 905.2 905.1 905.6 902.0 898.2 901.4 906.9 912.8 915.2 910.0 898.2 DAY 16 22 29 9 4 30 15 5 2 2 18 9 1998 905.0 906.0 905.6 906.2 906.0 905.4 900.0 905.0 906.4 910.0 913.0 914.2 900.0 DAY 12 7 14 21 21 28 7 21 4 1 10 31 1999 912.8 904.2 907.3 907.3 904.9 898.7 902.1 904.1 905.0 912.5 911.4 913.8 898.7 DAY 9 20 21 13 19 24 22 13 15 31 25 15 2000 909.5 906.9 905.2 909.9 904.7 902.6 900.8 902.0 904.0 913.1 915.2 912.5 900.8 DAY 20 6 24 9 19 23 11 30 1 13 21 15 2001 915.9 905.4 903.7 908.0 902.6 900.7 899.8 903.5 906.5 911.8 906.7 914.4 899.8 DAY 3 21 24 12 29 17 10 23 5 6 18 4 2002 910.0 908.7 907.2 904.2 905.6 901.0 901.7 901.3 907.9 911.0 912.4 907.2 901.0 DAY 7 26 26 3 19 19 24 17 10 21 11 21 2003 906.4 906.9 905.2 908.1 908.9 900.5 900.4 906.5 906.4 910.7 913.2 912.8 900.4 DAY 28 19 26 27 7 30 24 6 6 26 13 6 2004 908.6 909.7 909.0 904.2 900.5 903.9 904.7 902.5 907.8 912.8 909.9 912.2 900.5 DAY 23 14 31 16 15 17 9 3 11 21 23 15 2005 910.2 907.7 906.2 908.6 903.7 901.3 899.5 900.9 906.2 910.3 912.8 909.1 899.5 DAY 22 1 23 3 5 20 5 7 4 20 5 23 1986-2005 905.0 904.2 900.8 903.8 900.5 898.7 898.1 900.3 904.0 909.7 904.9 903.2 898.1 YEAR-DAY 98-12 99-20 87-13 92-17 4-15 99-24 95-16 94- 1 0- 1 88-30 94-25 94- 3 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 142 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QNH PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1014.6 1013.4 1007.0 1009.0 1011.5 1016.0 1019.2 1019.3 1020.8 ****** 1987 1020.9 1018.4 1012.5 1015.1 1014.1 1009.4 1008.8 1008.8 1013.8 1021.0 1021.7 1019.9 1015.4 1988 1019.1 1017.5 1012.5 1014.5 1012.1 1007.7 1005.4 1007.0 1012.7 1018.3 1019.3 1018.3 1013.7 1989 1019.6 1021.5 1014.1 1016.1 1013.5 1007.6 1007.6 1008.3 1011.8 1018.0 1019.6 1018.1 1014.6 1990 1019.9 1016.1 1018.6 1012.7 1011.6 1007.2 1006.5 1007.5 1010.7 1018.1 1020.2 1020.1 1014.1 1991 1019.2 1019.2 1015.1 1014.3 ****** 1008.3 1005.0 1007.6 1013.9 1018.6 1020.6 1018.2 ****** 1992 1019.3 1015.2 1016.5 1013.0 1014.4 1008.5 1006.0 1010.5 1014.7 1017.7 1019.8 1019.0 1014.5 1993 1020.5 1018.0 1016.2 1013.8 1013.4 1008.9 1008.2 1009.9 1012.1 1021.4 1019.8 1022.0 1015.3 1994 1018.8 1016.1 1014.7 1015.3 1013.2 1006.2 1003.6 1005.8 1016.7 1020.5 1017.1 1021.3 1014.1 1995 1020.3 1017.4 1015.3 1013.3 1015.3 1008.6 1003.0 1006.7 1012.0 1018.1 1018.6 1022.1 1014.2 1996 1021.5 1016.4 1014.4 1015.1 1014.0 1008.8 1009.5 1009.3 1010.5 1018.0 1023.2 1021.7 1015.2 1997 1017.5 1018.0 1013.0 1012.8 1014.5 1008.4 1003.8 1007.5 1013.7 1017.4 1020.7 1019.4 1013.9 1998 1017.6 1018.0 1015.2 1014.0 1013.9 1010.7 1006.6 1010.0 1012.2 1018.4 1020.2 1022.6 1014.9 1999 1020.4 1015.9 1014.6 1014.4 1012.1 1007.5 1006.8 1009.2 1011.5 1016.8 1020.1 1024.0 1014.4 2000 1018.1 1018.2 1015.1 1013.7 1010.1 1007.6 1008.3 1008.7 1011.5 1018.5 1022.2 1020.3 1014.4 2001 1021.4 1017.8 1015.0 1013.2 1010.4 1007.0 1006.7 1009.4 1013.3 1017.4 1019.1 1021.3 1014.3 2002 1020.2 1018.8 1015.8 1012.4 1011.3 1008.5 1008.4 1006.9 1013.4 1017.3 1021.4 1019.9 1014.5 2003 1019.5 1015.3 1015.4 1015.1 1015.2 1007.7 1003.7 1009.7 1013.1 1016.9 1021.6 1022.9 1014.7 2004 1017.0 1017.7 1017.7 1014.4 1012.1 1008.8 1008.5 1007.7 1015.0 1020.1 1019.2 1020.5 1014.9 2005 1019.2 1017.7 1014.7 1016.7 1013.8 1008.3 1006.6 1008.7 1011.5 1018.8 1021.1 1021.6 1014.9 MEAN 1019.5 1017.5 1015.1 1014.2 1013.1 1008.1 1006.6 1008.5 1013.0 1018.5 1020.3 1020.7 1014.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 143 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QNH PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1021.4 1019.5 1015.3 1012.6 1017.0 1020.2 1025.2 1027.2 1033.0 ****** DAY ** ** ** 5 19 2 15 24 21 14 15 6 1987 1028.5 1026.0 1020.7 1020.6 1018.7 1013.1 1013.7 1016.6 1019.4 1028.8 1034.0 1032.8 1034.0 DAY 11 6 22 21 12 27 28 7 25 28 29 1 1988 1029.2 1030.1 1021.4 1024.8 1017.2 1012.5 1009.7 1011.8 1018.6 1026.5 1025.6 1027.2 1030.1 DAY 2 6 16 8 16 8 26 21 30 16 15 29 1989 1027.7 1029.0 1020.3 1020.8 1017.8 1011.8 1012.0 1014.0 1022.6 1025.2 1024.3 1024.7 1029.0 DAY 30 3 7 1 1 3 19 19 23 24 8 18 1990 1028.9 1026.6 1027.9 1017.8 1015.8 1012.5 1009.5 1012.0 1015.6 1027.8 1028.6 1030.0 1030.0 DAY 26 7 20 3 15 1 8 29 27 15 22 27 1991 1028.0 1029.7 1021.5 1019.7 ****** 1013.8 1010.4 1011.7 1020.6 1022.3 1025.6 1027.1 ****** DAY 12 15 11 14 ** 22 11 22 26 16 24 17 1992 1030.8 1023.9 1027.2 1018.2 1021.9 1014.9 1010.4 1018.5 1019.8 1023.4 1027.6 1024.8 1030.8 DAY 4 15 12 7 2 6 14 31 1 29 3 28 1993 1029.1 1025.8 1021.5 1017.9 1019.9 1018.3 1013.8 1015.0 1018.1 1026.6 1026.9 1027.5 1029.1 DAY 6 9 16 16 8 22 27 28 15 17 21 26 1994 1028.2 1025.8 1019.3 1026.5 1020.1 1010.7 1008.6 1010.2 1024.2 1026.1 1023.8 1030.3 1030.3 DAY 9 18 17 5 17 8 13 15 22 23 1 7 1995 1027.1 1022.7 1023.4 1018.2 1020.4 1014.5 1008.8 1011.6 1019.1 1027.3 1025.2 1027.8 1027.8 DAY 7 13 2 6 28 1 3 24 21 25 27 10 1996 1029.1 1022.0 1019.9 1023.1 1018.2 1014.9 1014.9 1018.2 1018.2 1025.3 1033.9 1029.2 1033.9 DAY 25 23 28 4 5 26 3 29 25 18 18 3 1997 1025.1 1025.8 1025.3 1019.3 1020.6 1012.8 1007.6 1011.9 1018.5 1022.0 1031.0 1028.0 1031.0 DAY 23 7 11 12 11 10 19 28 14 8 7 28 1998 1024.7 1030.9 1020.9 1023.4 1021.5 1017.1 1013.8 1014.4 1018.0 1025.6 1026.3 1028.5 1030.9 DAY 22 22 21 11 3 16 19 2 12 9 24 9 1999 1031.3 1023.1 1023.1 1019.3 1017.3 1013.7 1012.3 1017.4 1018.2 1023.9 1029.6 1030.9 1031.3 DAY 2 11 18 10 28 16 27 19 29 26 30 5 2000 1027.2 1027.6 1021.6 1018.7 1014.9 1014.9 1016.0 1013.5 1018.7 1024.3 1030.8 1026.1 1030.8 DAY 30 10 3 1 6 13 30 20 29 15 16 4 2001 1026.3 1027.5 1024.5 1021.9 1014.7 1014.6 1011.7 1015.2 1021.0 1024.7 1025.3 1025.9 1027.5 DAY 29 9 1 1 5 1 28 11 22 10 19 17 2002 1028.0 1028.0 1029.8 1020.1 1015.8 1016.0 1013.6 1012.9 1018.7 1021.8 1029.8 1029.4 1029.8 DAY 25 5 10 1 16 24 29 31 21 10 18 4 2003 1024.9 1022.9 1027.6 1021.0 1022.4 1014.1 1009.7 1013.2 1020.9 1022.1 1031.8 1033.5 1033.5 DAY 11 28 2 30 1 6 3 30 26 15 25 11 2004 1023.8 1022.6 1024.4 1020.8 1018.9 1015.8 1012.8 1012.2 1020.8 1024.5 1025.5 1032.0 1032.0 DAY 11 9 8 10 3 5 17 30 29 26 28 3 2005 1026.0 1026.5 1020.3 1025.9 1017.7 1014.1 1011.8 1014.6 1014.8 1025.6 1025.4 1029.8 1029.8 DAY 8 17 26 5 21 8 28 13 30 23 27 29 1986-2005 1031.3 1030.9 1029.8 1026.5 1022.4 1018.3 1016.0 1018.5 1024.2 1028.8 1034.0 1033.5 1034.0 YEAR-DAY 99- 2 98-22 2-10 94- 5 3- 1 93-22 0-30 92-31 94-22 87-28 87-29 3-11 87-29 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 144 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QNH PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1010.0 1008.4 1002.6 1003.0 1007.4 1012.5 1013.8 1010.0 1011.3 ****** DAY ** ** ** 10 30 16 20 4 5 1 7 27 1987 1011.0 1011.9 1000.6 1006.8 1007.3 1005.8 1004.3 1004.2 1010.1 1010.4 1013.3 1009.4 1000.6 DAY 6 10 13 4 22 9 3 25 1 3 7 23 1988 1009.5 1007.5 1002.5 1006.6 1006.9 1002.1 1001.0 1002.5 1006.6 1010.2 1012.8 1003.8 1001.0 DAY 28 1 4 30 27 29 16 29 11 30 19 26 1989 1012.2 1010.4 1004.4 1011.9 1006.9 1001.9 1002.1 1000.8 1006.2 1010.6 1013.6 1011.0 1000.8 DAY 2 22 15 28 31 9 5 1 11 1 19 4 1990 1011.7 1005.2 1011.5 1004.9 1004.6 1000.6 1002.7 1002.6 1007.3 1011.0 1013.2 1013.1 1000.6 DAY 17 15 24 15 12 26 2 8 5 1 1 24 1991 1009.1 1009.5 1004.5 1006.4 ****** 1000.1 998.4 1003.1 1006.2 1015.2 1013.8 1009.1 ****** DAY 25 20 6 9 ** 11 13 11 7 3 4 31 1992 1007.4 1007.2 1004.8 1003.8 1009.9 1002.0 1001.1 1004.3 1009.2 1012.3 1006.9 1014.9 1001.1 DAY 2 24 30 17 31 27 18 1 17 5 25 27 1993 1010.1 1009.6 1008.0 1008.8 1009.1 1004.5 1002.5 1004.0 1007.3 1013.4 1006.8 1015.2 1002.5 DAY 8 3 21 12 2 3 11 12 2 1 13 4 1994 1009.7 1008.5 1006.0 1007.1 1008.4 1002.1 999.1 1000.0 1008.1 1014.9 1005.0 1003.2 999.1 DAY 15 11 11 1 1 21 30 1 2 14 25 3 1995 1014.4 1009.5 1005.6 1007.3 1010.6 1002.6 997.6 1002.3 1006.3 1011.7 1012.8 1018.2 997.6 DAY 11 4 25 16 6 21 16 22 19 11 24 25 1996 1014.4 1008.1 1007.4 1008.7 1008.5 1004.9 1001.9 1004.0 1005.4 1010.4 1016.3 1015.3 1001.9 DAY 6 10 25 9 29 18 6 7 19 26 28 24 1997 1007.9 1010.6 1005.4 1005.2 1005.8 1001.9 997.7 1001.2 1007.2 1013.6 1016.2 1010.6 997.7 DAY 16 22 29 9 4 30 15 5 2 2 18 9 1998 1005.1 1006.2 1005.8 1006.4 1006.2 1005.6 999.7 1005.1 1006.7 1010.6 1013.8 1015.2 999.7 DAY 12 7 14 21 21 28 7 21 4 1 10 31 1999 1013.6 1004.3 1007.6 1007.6 1005.0 998.3 1002.0 1004.2 1005.1 1013.3 1012.1 1014.7 998.3 DAY 9 20 21 13 19 24 22 13 15 31 25 15 2000 1010.0 1007.2 1005.4 1010.5 1004.8 1002.5 1000.6 1001.9 1004.0 1014.0 1016.2 1013.3 1000.6 DAY 20 6 24 9 19 23 11 30 1 13 21 15 2001 1017.0 1005.6 1003.7 1008.4 1002.5 1000.5 999.5 1003.5 1006.8 1012.5 1007.0 1015.4 999.5 DAY 3 21 24 12 29 17 10 23 5 6 18 4 2002 1010.6 1009.2 1007.5 1004.3 1005.8 1000.8 1001.5 1001.1 1008.3 1011.7 1013.2 1007.5 1000.8 DAY 7 26 26 3 19 19 24 17 10 21 11 21 2003 1006.7 1007.2 1005.4 1008.5 1009.4 1000.2 1000.1 1006.8 1006.7 1011.3 1014.1 1013.6 1000.1 DAY 28 19 26 27 7 30 24 6 6 26 13 6 2004 1009.1 1010.2 1009.5 1004.3 1000.2 1003.9 1004.8 1002.4 1008.2 1013.6 1010.5 1013.0 1000.2 DAY 23 14 31 16 15 17 9 3 11 21 23 15 2005 1010.8 1008.1 1006.4 1009.1 1003.7 1001.1 999.1 1000.7 1006.4 1010.9 1013.6 1009.6 999.1 DAY 22 1 23 3 5 20 5 7 4 20 5 23 1986-2005 1005.1 1004.3 1000.6 1003.8 1000.2 998.3 997.6 1000.0 1004.0 1010.2 1005.0 1003.2 997.6 YEAR-DAY 98-12 99-20 87-13 92-17 4-15 99-24 95-16 94- 1 0- 1 88-30 94-25 94- 3 95-16 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 145 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M AVERAGE OF QFF PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1012.1 1009.4 1000.9 1001.9 1005.4 1011.2 1016.0 1019.9 1023.8 ****** 1987 1023.0 1019.8 1012.7 1012.5 1009.2 1002.8 1001.9 1002.0 1008.7 1019.7 1021.4 1021.8 1013.0 1988 1021.6 1019.3 1012.1 1012.3 1007.1 1001.3 998.1 1000.1 1007.7 1015.6 1019.1 1020.1 1011.2 1989 1023.6 1025.4 1013.9 1013.2 1008.9 1000.8 1000.2 1001.3 1006.8 1014.9 1019.1 1019.7 1012.3 1990 1023.3 1018.3 1018.6 1010.2 1006.7 1000.3 999.3 1000.5 1005.3 1015.3 1019.7 1022.3 1011.6 1991 1021.7 1021.8 1015.4 1011.4 ****** 1002.0 997.6 1001.1 1008.8 1015.8 1020.6 1020.9 ****** 1992 1023.2 1017.7 1018.0 1011.0 1011.6 1002.6 998.6 1004.4 1010.3 1015.3 1019.8 1021.3 1012.8 1993 1024.5 1020.2 1016.8 1011.3 1009.4 1002.7 1001.4 1003.3 1006.8 1019.4 1020.9 1023.9 1013.4 1994 1020.7 1017.9 1014.1 1012.5 1008.7 999.9 996.2 998.7 1012.3 1018.1 1016.6 1024.3 1011.7 1995 1022.2 1018.5 1014.6 1010.8 1011.1 1002.6 995.3 999.3 1007.0 1015.7 1018.5 1025.1 1011.7 1996 1025.2 1018.0 1015.1 1013.2 1009.3 1002.3 1002.6 1002.5 1004.7 1015.6 1024.0 1023.2 1013.0 1997 1019.4 1020.1 1013.5 1010.5 1009.8 1001.5 995.8 1000.1 1008.6 1013.8 1020.8 1021.4 1011.3 1998 1020.6 1019.8 1014.9 1011.0 1009.4 1003.8 999.2 1003.0 1006.7 1015.7 1019.4 1023.7 1012.3 1999 1022.7 1016.6 1014.4 1011.5 1006.9 1000.6 1000.0 1001.9 1006.2 1013.4 1020.5 1026.0 1011.7 2000 1020.9 1020.0 1014.8 1009.8 1004.7 1001.2 1001.1 1001.8 1005.9 1016.4 1022.8 1022.5 1011.8 2001 1024.3 1019.3 1013.9 1009.5 1005.2 1000.5 999.5 1002.4 1007.8 1014.3 1018.9 1022.7 1011.5 2002 1022.7 1019.4 1014.7 1010.2 1006.8 1002.0 1000.6 998.8 1006.8 1012.6 1020.3 1021.8 1011.4 2003 1020.6 1015.9 1014.6 1011.6 1010.2 1000.5 994.7 1001.8 1007.3 1012.2 1021.1 1024.5 1011.2 2004 1018.1 1017.4 1015.5 1011.2 1006.8 1000.9 1000.6 999.4 1008.8 1016.3 1017.9 1022.3 1011.3 2005 1021.0 1019.4 1012.9 1012.8 1008.3 1000.8 997.9 1000.7 1005.0 1014.7 1020.6 1022.1 1011.3 MEAN 1022.1 1019.2 1014.8 1011.4 1008.4 1001.5 999.1 1001.4 1007.6 1015.5 1020.1 1022.7 1012.0 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 146 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MAX. OF QFF PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1022.3 1015.5 1009.6 1006.4 1011.2 1016.0 1021.9 1028.9 1037.0 ****** DAY ** ** ** 5 17 2 15 31 21 14 15 6 1987 1031.0 1028.7 1022.6 1019.7 1014.3 1009.0 1006.9 1010.3 1016.1 1030.2 1037.6 1036.4 1037.6 DAY 20 6 22 1 19 1 25 7 24 28 29 1 1988 1033.0 1034.0 1021.2 1024.6 1014.0 1006.5 1004.4 1005.2 1015.4 1026.0 1027.0 1031.9 1034.0 DAY 2 6 16 8 5 8 26 25 30 16 15 29 1989 1035.9 1034.8 1020.6 1020.7 1018.1 1005.5 1005.4 1007.8 1020.1 1024.4 1025.0 1027.2 1035.9 DAY 30 3 7 1 1 3 21 19 23 24 22 18 1990 1033.2 1030.0 1031.9 1016.8 1012.3 1006.7 1003.1 1006.0 1010.9 1026.0 1029.0 1036.3 1036.3 DAY 26 7 20 3 14 1 19 29 27 15 22 27 1991 1031.2 1034.1 1023.9 1018.8 ****** 1007.2 1004.2 1006.2 1017.2 1021.3 1027.4 1031.6 ****** DAY 12 15 11 14 ** 23 11 27 29 16 24 17 1992 1036.6 1028.5 1031.9 1019.1 1022.9 1009.4 1003.8 1014.9 1016.7 1022.1 1027.3 1029.7 1036.6 DAY 4 15 11 7 2 6 14 31 30 29 3 28 1993 1032.7 1028.7 1023.1 1014.8 1017.5 1013.6 1007.3 1007.9 1012.8 1024.7 1029.0 1030.4 1032.7 DAY 6 9 23 4 8 22 27 28 16 17 22 6 1994 1031.3 1030.6 1020.2 1027.5 1016.9 1004.8 1002.8 1003.1 1021.3 1025.4 1023.0 1035.0 1035.0 DAY 9 18 3 5 17 7 1 15 22 23 9 7 1995 1029.8 1024.4 1024.4 1017.2 1017.5 1010.6 1001.8 1004.9 1015.7 1026.7 1028.3 1030.7 1030.7 DAY 7 13 2 6 28 1 3 10 21 25 27 10 1996 1032.9 1024.5 1020.5 1024.9 1015.3 1009.7 1007.1 1012.3 1013.8 1024.7 1037.6 1032.3 1037.6 DAY 25 3 28 4 5 26 3 29 25 19 18 3 1997 1028.5 1029.8 1027.0 1020.2 1016.6 1005.3 1000.3 1005.5 1015.3 1018.9 1030.9 1031.9 1031.9 DAY 19 7 11 12 6 10 8 28 15 8 7 28 1998 1029.4 1033.2 1022.5 1021.4 1019.9 1010.7 1007.0 1008.2 1014.0 1026.0 1026.7 1029.5 1033.2 DAY 3 22 4 6 3 16 20 2 12 10 24 9 1999 1035.4 1024.5 1024.5 1018.7 1011.8 1007.9 1006.7 1010.5 1015.6 1024.2 1033.8 1033.7 1035.4 DAY 2 11 18 10 1 16 27 19 29 26 30 5 2000 1030.3 1030.8 1023.1 1016.8 1010.8 1011.1 1008.4 1006.9 1015.0 1024.1 1032.4 1028.6 1032.4 DAY 30 10 3 1 10 13 30 20 29 4 16 4 2001 1030.6 1029.8 1025.7 1018.2 1010.9 1010.5 1005.2 1009.0 1017.4 1022.7 1028.6 1028.4 1030.6 DAY 28 9 11 1 5 12 29 11 21 27 20 22 2002 1031.7 1029.1 1030.1 1017.4 1011.9 1010.2 1006.0 1006.1 1013.0 1016.9 1030.0 1032.1 1032.1 DAY 25 5 10 1 13 24 28 31 30 10 18 4 2003 1027.6 1025.0 1030.1 1018.4 1019.3 1008.9 1001.1 1006.4 1016.7 1017.7 1033.7 1036.0 1036.0 DAY 22 28 2 30 1 6 3 30 26 15 25 11 2004 1024.9 1022.8 1023.8 1017.7 1014.4 1009.3 1005.3 1005.0 1016.5 1022.2 1027.2 1035.0 1035.0 DAY 11 8 16 10 3 5 17 30 29 27 28 3 2005 1029.1 1029.6 1021.2 1025.4 1012.6 1008.2 1004.0 1007.1 1009.2 1023.7 1026.0 1033.0 1033.0 DAY 13 15 26 5 21 8 28 13 30 23 25 28 1986-2005 1036.6 1034.8 1031.9 1027.5 1022.9 1013.6 1008.4 1014.9 1021.3 1030.2 1037.6 1037.0 1037.6 YEAR-DAY 92- 4 89- 3 90-20 94- 5 92- 2 93-22 0-30 92-31 94-22 87-28 87-29 86- 6 87-29 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 147 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 M MIN. OF QFF PRESSURE IN HPA AT 2100 UTC. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1986 ****** ****** ****** 1007.7 1003.3 995.3 994.8 1001.1 1006.5 1010.1 1008.7 1014.0 ****** DAY ** ** ** 29 30 28 20 4 25 1 7 2 1987 1012.9 1012.6 1001.0 1004.8 1001.8 998.5 996.3 997.1 1004.2 1006.3 1010.5 1010.2 996.3 DAY 6 25 13 19 22 17 20 25 6 3 7 23 1988 1009.8 1007.5 1002.1 1002.4 1001.0 995.1 993.5 994.7 1000.5 1007.2 1010.6 1007.1 993.5 DAY 28 1 4 24 27 29 17 29 11 30 10 26 1989 1014.3 1012.1 1003.6 1006.8 999.6 993.4 994.4 993.0 999.5 1006.3 1013.0 1011.9 993.0 DAY 2 22 15 28 31 30 5 1 11 1 19 4 1990 1013.4 1006.6 1009.9 1001.7 1000.1 992.5 994.4 995.0 1001.2 1006.3 1009.9 1014.2 992.5 DAY 1 15 24 15 11 26 28 8 5 1 1 9 1991 1011.1 1009.2 1005.7 1003.3 ****** 992.8 991.3 995.7 999.8 1011.9 1011.3 1012.6 ****** DAY 24 20 6 9 ** 11 13 6 7 3 5 1 1992 1010.0 1007.7 1003.7 1000.5 1004.4 994.7 992.3 996.8 1004.6 1008.3 1005.2 1016.6 992.3 DAY 2 24 30 17 31 27 18 1 17 5 25 27 1993 1015.5 1010.8 1008.3 1005.9 1004.4 998.0 995.2 997.4 1000.9 1008.2 1006.6 1017.9 995.2 DAY 8 3 21 20 31 15 11 10 2 2 13 4 1994 1010.6 1010.1 1005.9 1005.6 1003.2 995.2 990.7 991.6 1002.3 1011.0 1004.1 1003.8 990.7 DAY 31 12 11 25 31 25 30 1 2 14 25 3 1995 1016.3 1008.7 1002.0 1004.4 1005.8 994.6 989.4 994.6 999.8 1006.6 1011.6 1021.5 989.4 DAY 16 4 25 16 6 29 16 8 19 4 24 3 1996 1016.8 1008.0 1006.5 1006.1 1002.4 997.0 993.4 996.9 999.7 1007.2 1016.0 1015.8 993.4 DAY 6 10 25 12 29 5 6 7 8 26 6 24 1997 1009.3 1010.1 1003.6 1002.2 1001.0 994.0 988.9 992.5 1000.0 1007.7 1016.1 1012.2 988.9 DAY 15 22 24 9 4 30 15 5 2 2 18 9 1998 1008.6 1005.0 1003.6 1002.5 1000.2 997.3 992.0 997.6 1000.2 1005.5 1012.4 1015.2 992.0 DAY 12 7 14 17 21 28 7 21 2 1 1 31 1999 1015.5 1003.8 1007.4 1003.8 998.6 993.6 994.4 996.0 998.7 1009.3 1011.9 1015.6 993.6 DAY 9 20 21 13 19 25 3 13 15 12 25 15 2000 1011.0 1009.4 1002.9 1005.3 997.9 994.8 991.6 995.0 997.7 1010.3 1015.6 1015.8 991.6 DAY 21 6 24 20 26 23 11 30 1 13 2 15 2001 1019.0 1006.0 1000.4 1003.8 996.3 993.0 990.9 996.3 999.3 1009.0 1005.4 1016.8 990.9 DAY 3 21 24 25 29 17 10 23 5 6 17 4 2002 1011.1 1007.2 1004.0 1004.1 999.8 992.4 992.6 992.6 1002.3 1006.1 1009.3 1008.9 992.4 DAY 7 26 26 3 19 19 24 7 10 21 11 21 2003 1007.4 1009.3 1004.1 1004.4 1003.2 992.4 990.9 998.6 999.6 1005.3 1011.4 1014.7 990.9 DAY 15 18 26 27 7 30 24 6 7 26 13 6 2004 1010.4 1007.6 1004.8 1000.1 994.9 995.5 996.0 994.4 999.7 1009.0 1009.4 1014.2 994.4 DAY 23 14 30 16 15 17 9 3 11 2 23 16 2005 1012.0 1008.5 1003.8 1003.5 999.1 993.1 991.0 991.2 999.0 1005.8 1013.0 1009.5 991.0 DAY 24 1 23 26 5 20 5 7 5 20 5 25 1986-2005 1007.4 1003.8 1000.4 1000.1 994.9 992.4 988.9 991.2 997.7 1005.3 1004.1 1003.8 988.9 YEAR-DAY 3-15 99-20 1-24 4-16 4-15 2-19 97-15 5- 7 0- 1 3-26 94-25 94- 3 97-15 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 148 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1011.0 1008.3 999.8 1000.9 1004.3 1010.3 1015.0 1018.8 1022.8 ****** 1987 1022.0 1018.8 1011.5 1011.5 1008.2 1001.7 1000.9 1000.9 1007.7 1018.8 1020.5 1020.8 1011.9 1988 1020.6 1018.3 1011.1 1011.2 1006.2 1000.3 997.1 999.1 1006.8 1014.6 1018.2 1019.1 1010.2 1989 1022.7 1024.5 1012.8 1012.0 1007.9 999.9 999.2 1000.3 1005.9 1014.0 1018.1 1018.6 1011.3 1990 1022.3 1017.2 1017.6 1009.1 1005.8 999.3 998.2 999.4 1004.4 1014.3 1018.6 1021.4 1010.6 1991 1020.9 1020.8 1014.2 1010.4 ****** 1001.0 996.7 1000.2 1008.0 1014.8 1019.7 1019.9 ****** 1992 1022.4 1016.6 1017.1 1009.9 1010.5 1001.6 997.6 1003.4 1009.4 1014.4 1018.8 1020.3 1011.8 1993 1023.6 1019.1 1015.7 1010.3 1008.4 1001.8 1000.3 1002.2 1005.9 1018.5 1019.9 1022.9 1012.4 1994 1019.8 1017.1 1013.0 1011.5 1007.7 998.9 995.2 997.7 1011.4 1017.1 1015.6 1023.4 1010.7 1995 1021.3 1017.5 1013.7 1009.8 1010.0 1001.6 994.4 998.3 1006.1 1014.9 1017.6 1024.2 1010.8 1996 1024.2 1017.0 1014.1 1012.3 1008.2 1001.3 1001.5 1001.5 1003.8 1014.7 1022.9 1022.3 1012.0 1997 1018.6 1019.3 1012.5 1009.4 1008.8 1000.6 994.8 999.2 1007.6 1012.8 1019.8 1020.3 1010.3 1998 1019.7 1018.9 1013.9 1010.0 1008.4 1002.8 998.1 1001.9 1005.7 1014.7 1018.3 1022.8 1011.3 1999 1021.9 1015.7 1013.4 1010.6 1006.1 999.7 999.0 1000.9 1005.3 1012.4 1019.6 1025.0 1010.8 2000 1020.0 1019.1 1014.0 1008.9 1003.8 1000.3 1000.2 1000.8 1004.9 1015.3 1021.8 1021.5 1010.9 2001 1023.5 1018.4 1012.9 1008.6 1004.4 999.5 998.5 1001.4 1007.0 1013.3 1018.0 1021.7 1010.6 2002 1021.8 1018.5 1013.9 1009.2 1005.9 1001.2 1000.0 998.7 1006.8 1012.5 1020.3 1021.7 1010.9 2003 1020.6 1015.9 1014.6 1011.6 1010.2 1000.5 994.7 1001.8 1007.2 1012.1 1021.0 1024.2 1011.2 2004 1018.1 1017.3 1015.5 1011.2 1006.8 1000.9 1000.6 999.4 1008.8 1016.2 1017.9 1022.3 1011.3 2005 1021.0 1019.3 1012.9 1012.8 1008.3 1000.8 997.8 1000.7 1004.9 1014.7 1020.5 1022.1 1011.3 MEAN 1021.3 1018.4 1013.9 1010.6 1007.6 1000.7 998.3 1000.6 1006.9 1014.8 1019.3 1021.9 1011.2 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 149 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1020.9 1014.0 1008.7 1005.2 1010.3 1015.0 1020.9 1027.3 1036.0 ****** DAY ** ** ** 5 19 2 15 31 21 14 15 6 1987 1030.0 1027.9 1021.7 1018.6 1012.9 1004.9 1008.4 1009.0 1015.1 1028.9 1036.7 1035.5 1036.7 DAY 20 6 22 1 19 1 28 7 24 28 30 1 1988 1032.2 1033.2 1020.3 1023.9 1012.9 1005.4 1003.4 1004.1 1014.4 1025.0 1026.3 1031.0 1033.2 DAY 3 6 16 8 5 8 27 25 30 16 15 29 1989 1033.3 1034.2 1019.1 1019.4 1015.1 1004.5 1004.2 1006.7 1019.2 1023.5 1024.1 1026.2 1034.2 DAY 30 3 7 1 1 3 22 19 23 24 22 18 1990 1033.0 1029.2 1030.9 1015.7 1011.4 1005.7 1002.1 1004.9 1009.9 1025.1 1028.0 1035.6 1035.6 DAY 26 7 20 3 14 1 19 29 27 18 22 27 1991 1030.3 1033.3 1023.0 1017.9 ****** 1006.3 1003.1 1005.3 1016.3 1019.9 1026.4 1030.6 ****** DAY 12 15 11 14 ** 23 11 27 29 16 24 17 1992 1035.4 1025.8 1031.2 1017.8 1021.7 1008.4 1002.6 1013.9 1015.7 1021.2 1026.2 1029.1 1035.4 DAY 4 15 11 7 2 6 14 31 30 29 3 28 1993 1031.8 1027.6 1022.1 1013.8 1016.5 1012.5 1006.2 1006.7 1011.8 1024.0 1028.2 1029.5 1031.8 DAY 6 9 23 4 8 22 27 30 22 17 22 6 1994 1030.5 1029.9 1018.6 1026.6 1015.8 1003.9 1001.8 1002.0 1020.7 1024.3 1021.9 1035.0 1035.0 DAY 9 18 16 5 17 7 1 15 22 23 9 7 1995 1029.0 1023.6 1023.5 1016.3 1016.1 1008.5 1000.7 1004.1 1014.8 1025.8 1027.6 1029.8 1029.8 DAY 7 13 2 6 28 1 3 10 21 25 27 10 1996 1032.1 1023.6 1019.7 1023.8 1014.1 1008.7 1005.9 1010.9 1012.8 1023.8 1035.7 1031.5 1035.7 DAY 25 3 28 4 5 26 3 29 24 19 18 3 1997 1027.8 1029.2 1026.2 1019.4 1015.7 1004.7 999.2 1004.6 1014.4 1018.0 1030.0 1031.1 1031.1 DAY 19 7 11 12 6 7 8 28 15 8 7 28 1998 1027.3 1032.3 1021.3 1020.3 1018.7 1009.5 1006.1 1006.7 1012.7 1024.7 1025.6 1028.4 1032.3 DAY 22 22 4 6 3 16 20 2 12 10 24 9 1999 1034.5 1023.5 1023.8 1017.8 1011.0 1006.9 1005.7 1009.2 1014.7 1023.0 1032.9 1032.8 1034.5 DAY 2 12 18 10 22 16 27 19 29 26 30 5 2000 1029.4 1030.0 1022.4 1015.8 1008.3 1010.3 1008.4 1005.8 1013.6 1023.0 1031.6 1027.4 1031.6 DAY 30 10 3 1 2 13 30 20 29 4 16 4 2001 1031.5 1028.7 1024.7 1017.3 1010.0 1009.4 1004.0 1007.8 1016.5 1021.6 1027.8 1027.5 1031.5 DAY 29 9 11 1 5 12 29 14 21 27 20 22 2002 1030.8 1028.1 1029.4 1016.5 1011.0 1009.1 1005.6 1006.1 1013.0 1016.9 1029.9 1032.1 1032.1 DAY 25 5 10 1 13 24 29 31 30 10 18 4 2003 1027.5 1025.0 1030.1 1018.4 1019.3 1008.9 1001.1 1006.3 1016.6 1017.6 1033.7 1035.7 1035.7 DAY 22 28 2 30 1 6 3 30 26 15 25 11 2004 1024.9 1022.7 1023.6 1017.6 1014.4 1009.3 1005.2 1005.0 1016.5 1022.2 1027.2 1035.0 1035.0 DAY 11 8 16 10 3 5 17 30 29 27 28 3 2005 1029.1 1029.6 1021.2 1025.4 1012.6 1008.2 1003.9 1007.1 1009.1 1023.7 1026.1 1033.0 1033.0 DAY 13 15 26 5 21 8 28 31 30 23 25 29 1986-2005 1035.4 1034.2 1031.2 1026.6 1021.7 1012.5 1008.4 1013.9 1020.7 1028.9 1036.7 1036.0 1036.7 YEAR-DAY 92- 4 89- 3 92-11 94- 5 92- 2 93-22 0-30 92-31 94-22 87-28 87-30 86- 6 87-30 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GHOM (40770) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 150 LATITUDE 34 42 N LONGITUDE 50 51 E DATA PROCESSING CENTER ELEVATION 877.4 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 1986 ****** ****** ****** 1006.7 1002.3 994.3 993.8 999.8 1006.4 1009.1 1007.7 1012.8 ****** DAY ** ** ** 29 30 28 20 4 3 1 7 2 1987 1011.8 1011.6 999.8 1003.8 1001.1 997.7 995.2 996.2 1003.1 1005.4 1009.6 1008.9 995.2 DAY 6 4 13 19 22 17 20 25 6 3 7 23 1988 1008.8 1006.5 1001.1 1001.3 1000.1 994.1 992.3 993.9 999.8 1006.4 1009.8 1006.2 992.3 DAY 28 29 4 24 27 29 17 29 11 30 10 26 1989 1013.3 1011.0 1002.5 1005.9 998.8 992.7 993.5 992.3 998.8 1005.3 1012.1 1010.6 992.3 DAY 2 22 15 28 31 30 5 1 11 1 19 4 1990 1012.4 1005.2 1008.9 1000.8 999.0 991.6 993.4 994.2 1000.2 1005.5 1010.0 1013.1 991.6 DAY 1 15 24 15 11 26 28 8 4 1 1 9 1991 1010.0 1008.3 1004.6 1002.2 ****** 991.7 990.4 994.9 999.0 1011.1 1010.4 1011.8 ****** DAY 24 20 6 9 ** 11 13 6 7 3 5 1 1992 1009.0 1006.6 1002.5 999.8 1003.4 993.8 992.1 996.0 1003.8 1007.6 1004.4 1015.8 992.1 DAY 2 24 30 17 31 27 18 1 17 5 25 27 1993 1014.6 1009.7 1007.2 1005.0 1003.3 996.8 994.2 996.4 1000.1 1007.7 1005.6 1017.2 994.2 DAY 8 3 21 20 31 15 11 10 2 1 13 4 1994 1009.6 1010.1 1004.7 1004.7 1002.3 994.2 989.7 990.8 1001.3 1010.1 1003.7 1002.9 989.7 DAY 31 11 11 25 31 25 30 1 2 14 25 3 1995 1015.3 1007.8 1001.2 1003.6 1004.8 993.7 988.6 993.8 998.8 1005.7 1010.9 1020.5 988.6 DAY 16 4 25 16 6 29 16 22 19 11 24 3 1996 1015.8 1006.9 1005.5 1005.2 1001.4 996.8 992.9 996.1 998.6 1006.4 1015.1 1014.8 992.9 DAY 6 10 25 12 29 5 6 7 8 26 6 24 1997 1008.6 1009.2 1002.7 1001.2 999.9 993.3 987.8 992.5 999.1 1006.8 1015.1 1011.2 987.8 DAY 15 22 24 9 4 30 15 5 2 2 18 9 1998 1007.6 1004.0 1002.9 1001.6 999.4 996.4 991.0 996.5 999.3 1004.6 1010.8 1014.1 991.0 DAY 12 7 14 17 21 28 7 21 2 1 10 31 1999 1014.5 1002.8 1006.5 1003.1 997.8 990.9 993.6 995.1 997.8 1008.4 1010.9 1014.6 990.9 DAY 9 20 21 13 19 24 3 13 15 12 25 15 2000 1010.1 1008.6 1002.1 1004.4 997.3 994.2 990.6 994.1 996.7 1009.4 1014.5 1014.9 990.6 DAY 21 6 24 20 26 23 11 30 1 13 2 15 2001 1018.0 1005.1 999.6 1002.9 995.6 992.1 990.1 995.5 999.6 1008.2 1004.6 1015.8 990.1 DAY 3 21 24 25 29 17 10 23 5 6 17 4 2002 1009.8 1006.5 1003.3 1003.1 998.9 992.4 992.6 992.5 1002.3 1006.0 1009.3 1008.9 992.4 DAY 7 26 26 3 19 19 24 7 10 21 11 21 2003 1007.4 1009.3 1004.0 1004.5 1003.2 992.4 990.8 998.6 999.6 1005.3 1011.4 1013.7 990.8 DAY 15 18 26 27 7 30 24 6 7 26 13 6 2004 1010.4 1007.6 1004.8 999.6 994.9 995.5 995.9 994.3 999.7 1009.0 1009.4 1014.2 994.3 DAY 23 14 30 16 15 17 9 3 11 2 23 16 2005 1012.0 1008.5 1003.8 1003.5 999.1 993.0 990.1 991.1 999.0 1005.8 1010.3 1009.5 990.1 DAY 24 1 23 26 5 20 5 7 5 20 5 25 1986-2005 1007.4 1002.8 999.6 999.6 994.9 990.9 987.8 990.8 996.7 1004.6 1003.7 1002.9 987.8 YEAR-DAY 3-15 99-20 1-24 4-16 4-15 99-24 97-15 94- 1 0- 1 98- 1 94-25 94- 3 97-15 =============================================================================================== TEHRAN 2006,MAY M.(S & A)