STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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(C) ***** ***** ***** ***** ***** 18.1 15.5 18.2 17.9 18.5 16.9 16.8 ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** ***** ***** 32.6 34.3 32.8 27.8 21.8 14.2 8.8 ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** ****** ****** ****** 347.0 411.0 365.0 203.5 37.5 0.5 0.0 ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** ****** ****** ****** 0.0 0.0 0.0 0.0 0.0 120.0 286.0 ****** DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** 6.3 5.8 0.6 -2.6 ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** 6.62 6.33 4.49 3.41 ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** 9.80 9.45 6.73 5.13 ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** 34.82 20.18 9.50 5.84 ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** 25 36 46 52 *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** *** *** *** *** 42 57 68 74 *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** *** *** *** *** 16 22 25 31 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** 41 51 64 69 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** *** *** *** *** 18 22 26 32 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** 25 49 58 62 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. ****** ****** ****** ****** ****** 0.0 0.0 0.0 0.0 0.0 1.0 0.1 ****** DAYS WITH PRECIPITATION >=10 **** **** **** **** **** 0 0 0 0 0 0 0 **** DAYS WITH PRECIPITATION >= 5 **** **** **** **** **** 0 0 0 0 0 0 0 **** DAYS WITH PRECIPITATION >= 1 **** **** **** **** **** 0 0 0 0 0 1 0 **** DAYS WITH PRECIPITATION **** **** **** **** **** 0 0 0 0 0 1 3 **** GREATEST DAILY PRECIPITATION ****** ****** ****** ****** ****** 0.0 0.0 0.0 0.0 0.0 1.0 0.1 ****** DAY ** ** ** ** ** ** ** ** ** ** 8 30 DAY WITH THUNDER STORM **** **** **** **** **** 0 0 0 0 0 0 0 **** DAYS WITH SNOW OR SLEET **** **** **** **** **** 0 0 0 0 0 0 0 **** DAYS WITH DUST **** **** **** **** **** 19 17 3 0 0 0 0 **** WIND DIRECTION (PREVAILING) *** *** *** *** *** 180 180 225 180 315 315 315 *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** **** 4.4 4.1 5.7 3.3 2.0 2.0 2.0 **** PREVAILING WIND PERCENT ***** ***** ***** ***** ***** 25.4 28.4 31.0 19.0 28.2 24.4 30.6 ***** CALMS PERCENT OF WIND ***** ***** ***** ***** ***** 9.7 9.0 23.9 18.3 9.6 18.3 14.5 ***** NO. OF WIND OBSERVATION **** **** **** **** **** 134 155 155 142 156 180 186 1108 VECTOR WIND DIRECTION (MEAN) *** *** *** *** *** 178 180 203 170 316 217 352 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** **** 2.1 1.8 2.2 0.7 0.2 0.3 0.6 **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** ***** 52.5 56.2 71.0 25.9 9.5 13.6 28.6 ***** WIND SPEED (MEAN KNOTS) **** **** **** **** **** 4.0 3.2 3.1 2.7 2.1 2.2 2.1 **** FASTEST WIND DIRECTION *** *** *** *** *** 120 180 210 210 90 160 180 *** FASTEST WIND SPEED (KNOTS) *** *** *** *** *** 22 17 20 18 9 12 9 *** DAY ** ** ** ** ** 21 10 14 2 6 9 28 DAYS WITH SKY CLEAR (0-2)/8 **** **** **** **** **** 23 21 28 27 30 22 20 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** **** **** **** 5 10 3 3 1 6 9 **** DAYS WITH CLOUDY (7-8)/8 **** **** **** **** **** 0 0 0 0 0 2 2 **** DAYS WITH VISIBILITY =< 2 KM **** **** **** **** **** 5 0 0 0 0 0 0 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. 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QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 930.0 934.9 ****** DAY ** ** ** ** ** ** ** ** ** ** 20 30 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1023.2 1024.5 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1032.6 1032.2 ****** DAY ** ** ** ** ** ** ** ** ** ** 3 6 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1012.2 1017.5 ****** DAY ** ** ** ** ** ** ** ** ** ** 20 30 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1022.6 1025.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1030.7 1033.8 ****** DAY ** ** ** ** ** ** ** ** ** ** 3 6 MIN. 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QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1006.9 1013.9 1011.6 1017.5 ****** DAY ** ** ** ** ** ** ** ** 2 11 20 30 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1009.7 1019.5 1024.4 1027.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1014.5 1027.0 1032.7 1035.1 ****** DAY ** ** ** ** ** ** ** ** 12 31 27 5 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1000.6 1011.6 1011.0 1018.7 ****** DAY ** ** ** ** ** ** ** ** 2 11 20 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. 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QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 932.2 938.4 940.5 941.8 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 936.0 944.4 946.4 949.0 ****** DAY ** ** ** ** ** ** ** ** 12 30 26 5 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 925.2 930.2 932.4 935.2 ****** DAY ** ** ** ** ** ** ** ** 1 8 19 30 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1014.6 1021.2 1023.5 1024.9 ****** MAX. 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QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1010.8 1019.2 ****** DAY ** ** ** ** ** ** ** ** ** ** 19 2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 930.3 936.8 939.4 940.8 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 934.0 942.2 946.6 947.4 ****** DAY ** ** ** ** ** ** ** ** 10 30 27 5 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 923.0 929.6 929.7 935.6 ****** DAY ** ** ** ** ** ** ** ** 1 8 19 29 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1012.6 1019.5 1022.3 1023.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1016.5 1025.3 1030.0 1030.8 ****** DAY ** ** ** ** ** ** ** ** 10 30 27 5 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1004.7 1011.8 1011.9 1018.2 ****** DAY ** ** ** ** ** ** ** ** 1 8 19 29 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1008.2 1017.4 1022.7 1026.0 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1013.0 1024.3 1032.6 1033.5 ****** DAY ** ** ** ** ** ** ** ** 26 30 27 5 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 998.2 1008.7 1011.3 1020.4 ****** DAY ** ** ** ** ** ** ** ** 1 8 19 30 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.0 10.5 16.2 19.9 30.5 33.9 36.9 33.5 31.3 22.2 13.8 10.5 22.2 MINIMUN AIR TEMPERATURE (C) 0.7 1.9 7.7 11.9 20.4 22.3 26.6 23.5 20.7 11.4 4.8 2.2 12.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 17 23 31 28 15 0 0 0 114 DAYS WITH MINIMUM TEMP. <=-4 1 1 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH FREEZING MIN.<= 0 18 9 1 0 0 0 0 0 0 0 5 7 40 TEMPERATURE RECORDS LOWEST(C) -4.0 -4.0 -1.0 6.0 14.0 16.0 22.0 18.0 15.0 3.0 -2.0 -2.0 -4.0 DAY 11 1 5 4 2 9 2 29 27 29 29 30 MAXIMUM AIR TEMPERATURE (C) 15.0 17.5 22.6 25.6 36.1 39.2 42.3 38.8 38.5 30.0 22.4 18.8 28.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 8 29 29 31 31 30 23 0 0 182 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.0 24.0 31.0 36.0 41.0 43.0 46.0 43.0 42.0 35.0 28.0 21.0 46.0 DAY 22 25 26 30 26 20 11 8 13 1 23 6 DIF. BETWEEN (MAX.-MIN.) (C) 14.3 15.6 14.9 13.7 15.7 16.9 15.7 15.3 17.8 18.6 17.6 16.6 16.1 MEAN DAILY TEMP. (MDT) (C) 7.9 9.7 15.2 18.7 28.2 30.7 34.4 31.1 29.6 20.7 13.6 10.5 20.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 31.0 224.5 292.0 416.5 314.0 258.0 31.5 0.0 0.0 1567.5 HEATING DEG. DAYS(BASE 18 0C) 314.5 232.0 95.5 44.0 0.0 0.0 0.0 0.0 0.0 21.5 133.0 232.5 1073.0 DEWPOINT (MEAN C) -1.0 -1.3 0.8 7.4 7.9 7.6 13.0 10.3 10.1 4.5 1.9 0.7 5.2 MIXING RATIO (G/KG) 3.94 3.83 4.74 7.20 7.46 7.41 10.74 8.89 8.67 5.91 4.91 4.43 6.51 VAPOUR PRESSURE (HPA) 5.91 5.74 7.06 10.67 11.03 10.89 15.68 13.05 12.75 8.82 7.35 6.63 9.63 SATURATION DEF. (HPA) 4.74 7.91 12.29 14.23 34.55 44.35 48.63 40.63 35.24 19.98 9.54 6.78 23.24 RELATIVE HUMIDITY (MEAN %) 61 47 40 49 28 23 26 27 29 35 48 54 39 RELATIVE HUMIDITY (MAX. %) 82 70 62 74 52 42 44 46 48 57 72 76 60 RELATIVE HUMIDITY (MIN. %) 39 31 24 31 17 14 19 18 19 21 29 34 25 RELATIVE HUMIDITY (MEAN% 03UTC) 79 68 60 70 52 42 42 45 44 53 66 74 58 RELATIVE HUMIDITY (MEAN% 09UTC) 41 32 26 34 18 16 20 20 19 23 32 36 26 RELATIVE HUMIDITY (MEAN% 15UTC) 65 54 48 58 30 21 24 21 36 43 67 70 45 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 13.1 2.0 30.7 30.6 1.0 0.0 0.0 0.0 0.0 0.0 1.6 4.3 83.3 DAYS WITH PRECIPITATION >=10 0 0 1 1 0 0 0 0 0 0 0 0 2 DAYS WITH PRECIPITATION >= 5 1 0 2 3 0 0 0 0 0 0 0 0 6 DAYS WITH PRECIPITATION >= 1 2 2 5 6 1 0 0 0 0 0 1 2 19 DAYS WITH PRECIPITATION 7 2 8 8 1 0 0 0 0 0 4 6 36 GREATEST DAILY PRECIPITATION 8.0 1.0 12.0 12.0 1.0 0.0 0.0 0.0 0.0 0.0 1.0 2.0 12.0 DAY 4 3 13 9 1 ** ** ** ** ** 10 12 DAY WITH THUNDER STORM 1 0 1 0 0 0 0 0 0 0 1 0 3 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 4 7 0 6 5 2 3 2 0 0 1 30 WIND DIRECTION (PREVAILING) 315 315 315 315 180 45 225 180 180 180 45 90 180 PREVAILING WIND SPEED(KNOTS) 2.3 2.5 2.3 2.5 5.7 4.3 5.4 7.2 7.2 6.3 4.1 4.0 6.6 PREVAILING WIND PERCENT 19.9 17.9 12.3 12.7 18.7 8.7 14.2 25.8 12.7 12.9 4.7 6.5 10.9 CALMS PERCENT OF WIND 20.4 23.6 40.6 43.3 59.4 61.3 62.6 51.0 66.7 53.5 78.7 76.8 52.8 NO. OF WIND OBSERVATION 181 140 155 150 155 150 155 155 150 155 150 155 1851 VECTOR WIND DIRECTION (MEAN) 46 121 155 135 159 76 205 175 147 154 86 142 151 VECTOR WIND MAGNITUDE(KNOTS) 0.4 0.8 1.3 1.2 1.4 0.7 1.0 2.2 1.0 0.9 0.3 0.3 0.8 WIND STEADINESES (MEAN %) 20.0 28.6 40.6 46.2 63.6 28.0 52.6 75.9 55.6 40.9 30.0 30.0 36.4 WIND SPEED (MEAN KNOTS) 2.0 2.8 3.2 2.6 2.2 2.5 1.9 2.9 1.8 2.2 1.0 1.0 2.2 FASTEST WIND DIRECTION 50 120 90 160 210 110 160 180 160 120 210 180 90 FASTEST WIND SPEED (KNOTS) 7 15 29 25 18 20 15 20 15 15 15 10 29 DAY 9 19 9 2 21 7 20 9 26 27 14 12 DAYS WITH SKY CLEAR (0-2)/8 17 18 14 9 25 30 30 31 28 31 22 24 279 DAYS WITH P.CLOUDY (3-6)/8 9 8 11 15 6 0 1 0 2 0 5 5 62 DAYS WITH CLOUDY (7-8)/8 5 2 6 6 0 0 0 0 0 0 3 2 24 DAYS WITH VISIBILITY =< 2 KM 0 0 0 0 0 0 0 0 0 0 0 0 0 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 940.5 937.9 934.9 934.3 930.8 926.5 924.5 928.4 928.9 938.3 939.5 938.9 933.6 MAX. QFE PRESSURE IN HPA 950.4 947.4 949.4 942.0 937.7 937.9 930.7 936.5 937.4 947.5 947.0 948.9 950.4 DAY-HOUR 10- 6 23- 6 4- 6 21- 6 11- 6 10- 6 24- 6 10- 6 29- 6 28- 6 1- 6 3- 6 MIN. QFE PRESSURE IN HPA 930.6 927.7 923.4 925.4 920.4 916.9 919.4 921.9 922.9 930.0 929.5 927.4 916.9 DAY-HOUR 22- 0 17-12 9-12 2- 3 28-12 6-15 11-15 1-15 10-15 1-12 23-15 22-12 MEAN QNH PRESSURE IN HPA 1023.5 1020.7 1017.4 1016.8 1013.1 1008.5 1006.4 1010.5 1011.1 1021.0 1022.4 1021.7 1016.1 MAX. QNH PRESSURE IN HPA 1034.1 1030.8 1033.0 1025.1 1020.5 1020.7 1013.0 1019.2 1020.1 1031.0 1030.4 1032.5 1034.1 DAY-HOUR 10- 6 23- 6 4- 6 21- 6 11- 6 10- 6 24- 6 10- 6 29- 6 28- 6 1- 6 3- 6 MIN. QNH PRESSURE IN HPA 1012.9 1009.7 1005.1 1007.3 1001.9 998.2 1000.9 1003.5 1004.6 1012.2 1011.7 1009.4 998.2 DAY-HOUR 22- 0 17-12 9-12 2- 3 28-12 6-15 11-15 1-15 10-15 1-12 23-15 22-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 941.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 948.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 930.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 22 ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1024.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1031.5 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1012.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 22 ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1025.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1033.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 11 ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1011.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 22 ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 940.9 938.8 935.7 934.8 931.7 927.4 925.6 929.4 929.9 938.8 940.2 939.4 934.4 MAX. QFE PRESSURE IN HPA 950.0 947.2 947.4 941.0 937.2 937.4 929.4 935.4 936.2 945.9 945.9 947.9 950.0 DAY 10 22 4 21 2 10 24 10 29 28 29 3 MIN. QFE PRESSURE IN HPA 931.6 931.9 925.4 925.4 921.4 919.0 921.3 924.3 925.4 931.9 932.6 929.4 919.0 DAY 22 14 9 2 30 16 1 8 11 3 24 22 MEAN QNH PRESSURE IN HPA 1023.8 1021.6 1018.3 1017.3 1014.0 1009.4 1007.5 1011.6 1012.1 1021.6 1023.2 1022.3 1016.9 MAX. QNH PRESSURE IN HPA 1033.6 1030.6 1030.8 1024.0 1019.9 1020.1 1011.6 1018.0 1018.9 1029.2 1029.2 1031.4 1033.6 DAY 10 22 4 21 2 10 24 10 29 28 29 3 MIN. QNH PRESSURE IN HPA 1013.9 1014.2 1007.3 1007.3 1003.0 1000.4 1002.9 1006.1 1007.3 1014.2 1015.0 1011.6 1000.4 DAY 22 14 9 2 30 16 1 8 11 3 24 22 MEAN QFF PRESSURE IN HPA 1026.0 1023.2 1017.9 1015.6 1009.4 1003.9 1000.9 1005.9 1007.4 1019.8 1023.9 1023.9 1014.8 MAX. QFF PRESSURE IN HPA 1036.7 1032.5 1031.6 1023.6 1016.8 1017.0 1005.6 1012.6 1014.8 1029.5 1032.0 1033.9 1036.7 DAY 10 22 4 4 2 10 24 10 30 28 29 3 MIN. QFF PRESSURE IN HPA 1013.0 1014.5 1005.7 1005.4 997.8 995.0 996.0 1000.1 1002.0 1010.7 1012.9 1012.8 995.0 DAY 22 14 9 2 30 17 15 8 11 3 24 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 942.0 939.3 936.7 935.7 932.5 927.9 926.1 930.3 930.9 939.9 941.3 940.7 935.3 MAX. QFE PRESSURE IN HPA 950.4 947.4 949.4 942.0 937.7 937.9 930.7 936.5 937.4 947.5 947.0 948.9 950.4 DAY 10 23 4 21 11 10 24 10 29 28 1 3 MIN. QFE PRESSURE IN HPA 932.4 932.4 926.4 926.9 922.4 919.0 921.3 925.3 926.4 933.4 933.9 930.4 919.0 DAY 22 17 9 2 30 15 1 8 11 2 24 22 MEAN QNH PRESSURE IN HPA 1025.1 1022.2 1019.4 1018.4 1014.9 1010.0 1008.1 1012.6 1013.1 1022.8 1024.3 1023.7 1017.9 MAX. QNH PRESSURE IN HPA 1034.1 1030.8 1033.0 1025.1 1020.5 1020.7 1013.0 1019.2 1020.1 1031.0 1030.4 1032.5 1034.1 DAY 10 23 4 21 11 10 24 10 29 28 1 3 MIN. QNH PRESSURE IN HPA 1014.8 1014.8 1008.4 1008.9 1004.1 1000.4 1002.9 1007.2 1008.4 1015.9 1016.4 1012.6 1000.4 DAY 22 17 9 2 30 15 1 8 11 2 24 22 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 940.6 938.0 935.3 934.5 931.3 926.7 924.6 928.8 929.3 938.6 939.7 939.0 933.9 MAX. QFE PRESSURE IN HPA 949.0 947.0 948.4 941.0 936.4 936.4 929.9 934.4 935.9 945.7 945.9 947.1 949.0 DAY 10 22 4 21 11 10 24 10 29 28 1 3 MIN. QFE PRESSURE IN HPA 931.6 929.4 925.4 926.4 921.4 918.0 920.9 924.4 925.2 932.0 932.6 928.9 918.0 DAY 22 17 9 2 30 16 12 1 11 2 23 22 MEAN QNH PRESSURE IN HPA 1023.5 1020.8 1017.9 1017.0 1013.6 1008.7 1006.5 1010.9 1011.5 1021.4 1022.6 1021.9 1016.4 MAX. QNH PRESSURE IN HPA 1032.6 1030.4 1031.9 1024.0 1019.1 1019.1 1012.1 1016.9 1018.5 1029.0 1029.2 1030.5 1032.6 DAY 10 22 4 21 11 10 24 10 29 28 1 3 MIN. QNH PRESSURE IN HPA 1013.9 1011.6 1007.3 1008.4 1003.0 999.4 1002.5 1006.2 1007.1 1014.4 1015.0 1011.0 999.4 DAY 22 17 9 2 30 16 12 1 11 2 23 22 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 939.1 936.7 933.3 933.0 929.5 925.4 923.4 927.0 927.4 936.9 938.1 937.6 932.3 MAX. QFE PRESSURE IN HPA 947.4 944.4 945.7 939.5 937.4 934.4 927.5 931.5 934.0 944.4 944.0 945.4 947.4 DAY 10 22 4 21 12 10 24 9 29 28 1 3 MIN. QFE PRESSURE IN HPA 931.2 927.7 923.4 926.0 920.4 918.0 919.7 922.4 923.0 930.0 929.9 927.4 918.0 DAY 22 17 9 8 28 16 12 1 11 1 23 22 MEAN QNH PRESSURE IN HPA 1022.0 1019.4 1015.8 1015.5 1011.6 1007.3 1005.2 1009.0 1009.5 1019.6 1020.9 1020.3 1014.7 MAX. QNH PRESSURE IN HPA 1030.8 1027.6 1029.0 1022.4 1020.1 1016.9 1009.5 1013.8 1016.5 1027.6 1027.2 1028.7 1030.8 DAY 10 22 4 21 12 10 24 9 29 28 1 3 MIN. QNH PRESSURE IN HPA 1013.5 1009.7 1005.1 1007.9 1001.9 999.4 1001.2 1004.1 1004.7 1012.2 1012.1 1009.4 999.4 DAY 22 17 9 8 28 16 12 1 11 1 23 22 MEAN QFF PRESSURE IN HPA 1023.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1033.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1011.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 22 ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 939.7 936.9 933.4 933.3 929.4 925.2 923.0 926.6 927.2 937.1 938.4 937.8 932.3 MAX. QFE PRESSURE IN HPA 948.4 945.4 945.7 939.0 937.0 934.4 926.5 931.5 934.0 944.7 944.1 945.4 948.4 DAY 10 22 4 20 12 10 24 9 29 27 25 3 MIN. QFE PRESSURE IN HPA 932.4 929.4 924.4 927.4 920.4 916.9 919.4 921.9 922.9 930.0 929.5 928.4 916.9 DAY 22 17 13 1 28 6 11 1 10 1 23 22 MEAN QNH PRESSURE IN HPA 1022.6 1019.6 1015.8 1015.7 1011.5 1007.1 1004.7 1008.6 1009.2 1019.9 1021.3 1020.6 1014.7 MAX. QNH PRESSURE IN HPA 1031.9 1028.7 1029.0 1021.8 1019.7 1016.9 1008.5 1013.8 1016.5 1028.0 1027.3 1028.7 1031.9 DAY 10 22 4 20 12 10 24 9 29 27 25 3 MIN. QNH PRESSURE IN HPA 1014.8 1011.6 1006.2 1009.4 1001.9 998.2 1000.9 1003.5 1004.6 1012.2 1011.7 1010.5 998.2 DAY 22 17 13 1 28 6 11 1 10 1 23 22 MEAN QFF PRESSURE IN HPA 1024.6 1021.1 1015.4 1013.9 1006.9 1001.6 998.1 1003.0 1004.4 1018.0 1021.9 1022.1 1012.6 MAX. QFF PRESSURE IN HPA 1035.5 1030.8 1030.2 1021.3 1015.4 1013.3 1002.1 1008.3 1012.4 1028.8 1029.2 1031.1 1035.5 DAY 10 22 4 3 12 9 24 9 29 31 29 3 MIN. QFF PRESSURE IN HPA 1014.1 1012.2 1004.6 1007.0 996.7 992.3 993.8 996.9 999.1 1008.4 1010.5 1010.7 992.3 DAY 22 17 9 29 28 6 14 1 11 2 23 22 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.9 14.0 19.5 22.4 29.4 33.1 35.3 32.7 27.5 22.8 13.3 9.0 22.3 MINIMUN AIR TEMPERATURE (C) 0.7 4.6 9.8 13.3 19.3 22.6 25.7 22.7 15.7 11.8 4.1 1.4 12.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 12 25 31 26 1 0 0 0 95 DAYS WITH MINIMUM TEMP. <=-4 2 0 0 0 0 0 0 0 0 0 2 3 7 DAYS WITH FREEZING MIN.<= 0 18 1 0 0 0 0 0 0 0 0 14 13 46 TEMPERATURE RECORDS LOWEST(C) -4.0 0.0 3.0 8.0 13.0 18.0 22.0 16.0 8.0 6.0 -5.0 -4.0 -5.0 DAY 21 23 4 14 1 12 10 28 26 13 30 1 MAXIMUM AIR TEMPERATURE (C) 16.8 20.8 25.8 28.0 34.8 38.3 39.9 37.8 34.4 30.4 21.6 16.3 28.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 6 12 28 30 31 31 28 21 0 0 187 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 22.0 28.0 31.0 33.0 40.0 42.0 44.0 43.0 39.0 35.0 29.0 21.0 44.0 DAY 8 21 21 5 28 9 5 23 3 11 5 24 DIF. BETWEEN (MAX.-MIN.) (C) 16.1 16.2 16.0 14.7 15.5 15.7 14.2 15.1 18.7 18.6 17.5 14.9 16.1 MEAN DAILY TEMP. (MDT) (C) 8.8 12.7 17.8 20.7 27.0 30.4 32.8 30.3 25.0 21.1 12.9 8.8 20.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 5.0 28.0 187.5 283.5 366.0 287.5 133.0 25.0 0.0 0.0 1315.5 HEATING DEG. DAYS(BASE 18 0C) 286.0 151.5 40.0 3.5 0.0 0.0 0.0 0.0 0.0 4.5 166.5 284.5 936.5 DEWPOINT (MEAN C) -1.1 -0.1 3.0 7.2 8.5 9.1 10.4 8.6 5.1 3.4 -2.3 -0.4 4.3 MIXING RATIO (G/KG) 3.85 4.26 5.26 7.16 7.83 7.99 8.72 7.83 6.23 5.42 3.89 4.15 6.05 VAPOUR PRESSURE (HPA) 5.78 6.36 7.83 10.61 11.57 11.79 12.83 11.56 9.24 8.11 5.85 6.23 8.98 SATURATION DEF. (HPA) 6.21 10.60 16.19 17.58 31.34 40.59 46.08 39.71 30.16 21.28 10.94 5.82 23.04 RELATIVE HUMIDITY (MEAN %) 53 41 38 42 30 25 24 24 26 31 38 55 36 RELATIVE HUMIDITY (MAX. %) 76 60 60 63 50 41 39 41 45 51 59 77 55 RELATIVE HUMIDITY (MIN. %) 35 27 23 28 19 17 17 17 17 19 23 37 23 RELATIVE HUMIDITY (MEAN% 03UTC) 74 59 58 62 49 41 39 41 44 49 56 75 54 RELATIVE HUMIDITY (MEAN% 09UTC) 36 30 25 31 21 19 19 18 19 20 23 38 25 RELATIVE HUMIDITY (MEAN% 15UTC) 62 50 44 44 32 21 19 21 24 39 49 68 39 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 6.3 1.6 7.6 34.4 3.0 0.0 0.0 0.0 0.0 0.0 0.0 6.6 59.5 DAYS WITH PRECIPITATION >=10 0 0 0 1 0 0 0 0 0 0 0 0 1 DAYS WITH PRECIPITATION >= 5 0 0 1 2 0 0 0 0 0 0 0 1 4 DAYS WITH PRECIPITATION >= 1 2 1 2 6 1 0 0 0 0 0 0 1 13 DAYS WITH PRECIPITATION 2 3 2 8 1 0 0 0 0 0 0 4 20 GREATEST DAILY PRECIPITATION 4.0 1.6 5.0 16.0 3.0 0.0 0.0 0.0 0.0 0.0 0.0 6.0 16.0 DAY 16 28 1 21 11 ** ** ** ** ** ** 12 DAY WITH THUNDER STORM 0 1 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 1 4 2 1 6 14 13 1 2 1 0 0 45 WIND DIRECTION (PREVAILING) 180 180 180 180 180 180 180 180 315 180 180 180 180 PREVAILING WIND SPEED(KNOTS) 8.6 8.0 6.3 5.2 5.0 7.0 7.4 8.8 5.6 7.8 8.2 4.7 7.0 PREVAILING WIND PERCENT 9.0 10.0 11.6 18.7 25.8 32.0 42.6 41.3 14.7 12.9 14.7 9.0 20.2 CALMS PERCENT OF WIND 68.4 64.3 59.4 36.7 34.8 34.7 30.3 31.0 38.7 62.6 59.3 65.2 48.7 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 138 121 171 347 174 165 188 174 292 156 163 327 170 VECTOR WIND MAGNITUDE(KNOTS) 1.2 1.4 0.8 0.5 1.2 2.4 3.8 4.1 0.9 1.0 1.0 R< 0.1 1.3 WIND STEADINESES (MEAN %) 60.0 46.7 33.3 13.5 42.9 60.0 82.6 78.8 30.0 47.6 45.5 1.3 41.9 WIND SPEED (MEAN KNOTS) 2.0 3.0 2.4 3.7 2.8 4.0 4.6 5.2 3.0 2.1 2.2 1.4 3.1 FASTEST WIND DIRECTION 110 160 210 290 110 210 220 180 290 160 180 180 160 FASTEST WIND SPEED (KNOTS) 15 22 15 14 9 18 17 20 16 15 15 15 22 DAY 16 22 15 6 16 6 26 5 19 12 2 15 DAYS WITH SKY CLEAR (0-2)/8 22 16 17 12 25 28 29 30 29 31 22 16 277 DAYS WITH P.CLOUDY (3-6)/8 8 9 12 15 6 2 2 1 1 0 8 12 76 DAYS WITH CLOUDY (7-8)/8 1 3 2 3 0 0 0 0 0 0 0 3 12 DAYS WITH VISIBILITY =< 2 KM 0 0 2 0 0 0 0 0 0 0 0 0 2 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 940.1 936.6 934.4 932.9 932.1 929.8 928.0 930.9 934.6 939.0 943.7 940.7 935.2 MAX. QFE PRESSURE IN HPA 951.3 948.1 945.4 941.8 939.4 937.6 934.5 938.3 945.3 946.5 952.9 950.1 952.9 DAY-HOUR 19- 6 11- 6 3- 6 19- 6 17- 6 2- 6 31- 6 27- 6 25- 6 27- 6 23- 6 1- 6 MIN. QFE PRESSURE IN HPA 930.7 924.4 916.6 921.2 925.0 920.5 922.4 924.6 925.6 930.2 937.2 933.7 916.6 DAY-HOUR 5-12 20-15 28-12 5-12 10-15 9-15 13-15 2-15 17-15 10-12 9-15 9-15 MEAN QNH PRESSURE IN HPA 1023.0 1019.3 1016.9 1015.3 1014.4 1012.0 1010.1 1013.2 1017.1 1021.8 1026.8 1023.7 1017.8 MAX. QNH PRESSURE IN HPA 1035.0 1031.6 1028.7 1024.9 1022.3 1020.3 1017.0 1021.1 1028.6 1029.9 1036.7 1033.7 1036.7 DAY-HOUR 19- 6 11- 6 3- 6 19- 6 17- 6 2- 6 31- 6 27- 6 25- 6 27- 6 23- 6 1- 6 MIN. QNH PRESSURE IN HPA 1013.0 1006.2 997.9 1002.8 1006.9 1002.0 1004.1 1006.4 1007.5 1012.4 1019.9 1016.2 997.9 DAY-HOUR 5-12 20-15 28-12 5-12 10-15 9-15 13-15 2-15 17-15 10-12 9-15 9-15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 940.5 937.3 935.1 933.6 932.8 930.8 929.2 931.8 935.4 939.7 944.3 941.4 936.0 MAX. QFE PRESSURE IN HPA 950.1 946.9 943.4 940.4 938.4 936.8 933.7 936.9 944.2 945.7 951.9 949.3 951.9 DAY 19 11 3 19 17 2 31 27 26 27 23 1 MIN. QFE PRESSURE IN HPA 933.1 926.4 925.0 926.0 927.0 923.9 925.4 927.0 929.8 931.4 939.3 935.4 923.9 DAY 9 21 28 5 11 10 13 22 17 10 3 25 MEAN QNH PRESSURE IN HPA 1023.5 1020.0 1017.7 1016.0 1015.2 1013.1 1011.3 1014.1 1018.0 1022.6 1027.5 1024.4 1018.6 MAX. QNH PRESSURE IN HPA 1033.7 1030.3 1026.6 1023.3 1021.2 1019.5 1016.2 1019.6 1027.4 1029.0 1035.7 1032.9 1035.7 DAY 19 11 3 19 17 2 31 27 26 27 23 1 MIN. QNH PRESSURE IN HPA 1015.5 1008.4 1006.9 1007.9 1009.0 1005.7 1007.3 1009.0 1012.0 1013.7 1022.2 1018.0 1005.7 DAY 9 21 28 5 11 10 13 22 17 10 3 25 MEAN QFF PRESSURE IN HPA 1025.4 1020.4 1016.4 1013.7 1010.8 1007.6 1005.1 1008.7 1014.5 1020.6 1028.3 1026.4 1016.5 MAX. QFF PRESSURE IN HPA 1035.9 1032.0 1027.2 1021.7 1017.4 1014.3 1010.6 1013.8 1025.8 1027.7 1038.5 1036.7 1038.5 DAY 19 11 4 19 17 2 31 28 26 27 23 1 MIN. QFF PRESSURE IN HPA 1015.4 1005.9 1003.4 1005.4 1004.4 999.9 1001.5 1002.7 1007.6 1011.0 1020.5 1019.5 999.9 DAY 9 21 28 5 11 10 15 22 17 10 3 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 941.8 938.5 936.2 934.6 933.6 931.5 929.7 932.8 936.5 940.7 945.4 942.5 937.0 MAX. QFE PRESSURE IN HPA 951.3 948.1 945.4 941.8 939.4 937.6 934.5 938.3 945.3 946.5 952.9 950.1 952.9 DAY 19 11 3 19 17 2 31 27 25 27 23 1 MIN. QFE PRESSURE IN HPA 934.6 928.5 925.1 926.8 927.9 925.4 926.3 928.3 930.4 932.6 940.3 936.4 925.1 DAY 9 18 28 5 11 9 13 21 17 10 3 25 MEAN QNH PRESSURE IN HPA 1024.9 1021.3 1018.8 1017.1 1016.1 1013.8 1011.9 1015.2 1019.1 1023.7 1028.7 1025.6 1019.7 MAX. QNH PRESSURE IN HPA 1035.0 1031.6 1028.7 1024.9 1022.3 1020.3 1017.0 1021.1 1028.6 1029.9 1036.7 1033.7 1036.7 DAY 19 11 3 19 17 2 31 27 25 27 23 1 MIN. QNH PRESSURE IN HPA 1017.1 1010.6 1007.0 1008.8 1010.0 1007.3 1008.2 1010.4 1012.6 1015.0 1023.2 1019.1 1007.0 DAY 9 18 28 5 11 9 13 21 17 10 3 25 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 940.4 937.0 934.9 933.4 932.6 930.4 928.5 931.1 935.0 939.1 943.9 940.9 935.6 MAX. QFE PRESSURE IN HPA 949.0 947.4 944.4 941.4 937.9 936.4 932.4 935.7 944.2 945.9 950.9 948.5 950.9 DAY 19 11 3 19 17 2 30 27 25 27 24 1 MIN. QFE PRESSURE IN HPA 934.4 925.4 921.6 924.6 926.8 923.4 925.1 927.3 928.6 931.5 938.7 935.7 921.6 DAY 5 18 28 5 11 9 14 2 17 10 2 25 MEAN QNH PRESSURE IN HPA 1023.3 1019.8 1017.5 1015.8 1015.0 1012.6 1010.6 1013.4 1017.6 1022.0 1027.1 1023.8 1018.2 MAX. QNH PRESSURE IN HPA 1032.6 1030.8 1027.6 1024.4 1020.7 1019.1 1014.8 1018.3 1027.4 1029.2 1034.6 1032.0 1034.6 DAY 19 11 3 19 17 2 30 27 25 27 24 1 MIN. QNH PRESSURE IN HPA 1016.9 1007.3 1003.2 1006.4 1008.8 1005.1 1007.0 1009.3 1010.7 1013.8 1021.5 1018.3 1003.2 DAY 5 18 28 5 11 9 14 2 17 10 2 25 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 938.8 935.0 932.8 931.4 930.9 928.4 926.7 929.6 933.1 937.6 942.4 939.3 933.8 MAX. QFE PRESSURE IN HPA 947.7 944.9 943.4 939.4 936.4 934.4 931.2 934.4 942.1 943.8 949.3 946.5 949.3 DAY 19 11 3 19 16 2 30 9 25 27 23 1 MIN. QFE PRESSURE IN HPA 930.7 925.4 916.6 921.2 925.9 921.1 923.2 925.4 926.2 930.2 937.7 934.2 916.6 DAY 5 18 28 5 10 9 14 2 17 10 9 9 MEAN QNH PRESSURE IN HPA 1021.7 1017.6 1015.2 1013.7 1013.2 1010.5 1008.6 1011.8 1015.5 1020.4 1025.5 1022.2 1016.3 MAX. QNH PRESSURE IN HPA 1031.2 1028.2 1026.6 1022.3 1019.1 1016.9 1013.5 1016.9 1025.2 1027.0 1032.9 1029.9 1032.9 DAY 19 11 3 19 16 2 30 9 25 27 23 1 MIN. QNH PRESSURE IN HPA 1013.0 1007.3 997.9 1002.8 1007.8 1002.7 1004.9 1007.3 1008.1 1012.4 1020.5 1016.7 997.9 DAY 5 18 28 5 10 9 14 2 17 10 9 9 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 939.1 935.2 933.0 931.5 930.6 928.0 926.2 929.3 933.0 937.7 942.5 939.6 933.8 MAX. QFE PRESSURE IN HPA 947.7 945.7 943.4 938.3 936.4 934.4 931.2 933.7 942.6 943.8 948.8 946.5 948.8 DAY 19 11 3 19 16 2 30 9 25 27 23 1 MIN. QFE PRESSURE IN HPA 930.7 924.4 917.4 921.2 925.0 920.5 922.4 924.6 925.6 930.2 937.2 933.7 917.4 DAY 5 20 28 5 10 9 13 2 17 10 9 9 MEAN QNH PRESSURE IN HPA 1022.0 1017.8 1015.4 1013.8 1012.9 1010.0 1008.2 1011.5 1015.5 1020.4 1025.6 1022.5 1016.3 MAX. QNH PRESSURE IN HPA 1031.2 1029.0 1026.6 1021.1 1019.1 1016.9 1013.5 1016.2 1025.7 1027.0 1032.3 1029.9 1032.3 DAY 19 11 3 19 16 2 30 9 25 27 23 1 MIN. QNH PRESSURE IN HPA 1013.0 1006.2 998.7 1002.8 1006.9 1002.0 1004.1 1006.4 1007.5 1012.4 1019.9 1016.2 998.7 DAY 5 20 28 5 10 9 13 2 17 10 9 9 MEAN QFF PRESSURE IN HPA 1023.8 1018.0 1014.0 1011.4 1008.4 1004.5 1002.0 1006.1 1011.9 1018.4 1026.4 1024.3 1014.1 MAX. QFF PRESSURE IN HPA 1033.8 1030.4 1027.0 1019.3 1014.9 1011.9 1007.6 1011.4 1023.9 1025.4 1035.2 1033.7 1035.2 DAY 19 11 3 19 13 2 30 28 25 27 23 1 MIN. QFF PRESSURE IN HPA 1014.1 1005.6 995.0 999.6 1002.0 996.5 998.1 1000.9 1002.8 1009.4 1018.5 1016.9 995.0 DAY 5 20 28 5 25 9 13 2 17 10 9 9 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 9.7 14.3 17.1 24.7 27.7 35.1 36.4 34.6 29.9 24.3 14.7 8.0 23.0 MINIMUN AIR TEMPERATURE (C) 1.1 5.8 8.1 15.2 18.2 23.3 25.1 24.5 18.4 14.2 6.5 1.0 13.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 1 6 29 31 29 2 0 0 0 98 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 3 3 DAYS WITH FREEZING MIN.<= 0 20 2 2 0 0 0 0 0 0 0 0 15 39 TEMPERATURE RECORDS LOWEST(C) -2.0 0.0 0.0 10.0 13.0 19.0 22.0 20.0 15.0 10.0 1.0 -6.0 -6.0 DAY 7 9 9 2 4 1 2 14 15 13 19 29 MAXIMUM AIR TEMPERATURE (C) 18.7 21.8 23.6 30.4 32.6 40.7 41.9 40.1 36.8 31.5 21.5 14.3 29.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 18 24 30 31 31 30 23 0 0 188 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 27.0 29.0 30.0 36.0 39.0 43.0 46.0 44.0 41.0 36.0 28.0 22.0 46.0 DAY 29 28 26 11 29 8 17 4 5 1 2 3 DIF. BETWEEN (MAX.-MIN.) (C) 17.6 16.0 15.5 15.2 14.4 17.4 16.8 15.6 18.4 17.3 15.0 13.3 16.1 MEAN DAILY TEMP. (MDT) (C) 9.9 13.8 15.9 22.8 25.4 32.0 33.5 32.3 27.6 22.8 14.0 7.6 21.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.5 63.5 136.5 330.0 387.5 349.5 199.0 62.0 0.0 0.0 1528.5 HEATING DEG. DAYS(BASE 18 0C) 251.5 121.0 77.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 127.0 321.5 898.5 DEWPOINT (MEAN C) -1.2 2.0 -0.6 6.0 7.9 7.7 8.8 8.4 7.8 6.9 3.2 -0.8 4.7 MIXING RATIO (G/KG) 3.79 4.94 4.32 6.56 7.34 7.32 7.91 7.67 7.35 6.88 5.38 3.94 6.12 VAPOUR PRESSURE (HPA) 5.68 7.38 6.43 9.72 10.84 10.79 11.62 11.30 10.89 10.25 8.06 5.91 9.07 SATURATION DEF. (HPA) 7.37 10.07 14.22 22.71 28.10 48.01 51.59 45.98 33.83 21.76 9.62 5.61 24.91 RELATIVE HUMIDITY (MEAN %) 50 48 35 34 32 21 21 22 28 36 50 57 36 RELATIVE HUMIDITY (MAX. %) 74 73 56 57 54 43 42 39 47 56 75 81 58 RELATIVE HUMIDITY (MIN. %) 30 28 20 21 20 12 13 15 17 22 31 39 22 RELATIVE HUMIDITY (MEAN% 03UTC) 74 71 54 56 53 43 42 39 45 53 72 79 57 RELATIVE HUMIDITY (MEAN% 09UTC) 31 32 23 23 24 14 15 16 19 22 33 42 25 RELATIVE HUMIDITY (MEAN% 15UTC) 65 54 41 36 32 18 18 18 32 47 62 64 41 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 3.0 13.5 1.9 13.0 21.3 0.0 0.0 0.0 1.0 0.0 13.0 13.2 79.9 DAYS WITH PRECIPITATION >=10 0 0 0 1 0 0 0 0 0 0 1 0 2 DAYS WITH PRECIPITATION >= 5 0 2 0 1 2 0 0 0 0 0 1 1 7 DAYS WITH PRECIPITATION >= 1 1 4 1 3 5 0 0 0 1 0 2 4 21 DAYS WITH PRECIPITATION 1 5 2 4 6 0 0 0 1 1 3 6 29 GREATEST DAILY PRECIPITATION 3.0 6.0 1.5 10.0 7.0 0.0 0.0 0.0 1.0 0.0 11.0 6.0 11.0 DAY 5 3 28 25 18 ** ** ** 10 ** 13 27 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 3 3 DAYS WITH DUST 0 0 12 4 8 18 12 3 4 2 4 5 72 WIND DIRECTION (PREVAILING) 135 180 135 180 180 180 180 360 360 360 180 315 180 PREVAILING WIND SPEED(KNOTS) 9.3 3.9 8.7 5.0 4.6 8.8 8.9 6.7 8.3 5.8 3.8 12.0 6.8 PREVAILING WIND PERCENT 1.9 5.0 9.0 10.7 9.7 17.3 10.3 7.7 18.7 8.4 3.3 5.2 6.4 CALMS PERCENT OF WIND 93.5 80.0 61.9 54.7 52.9 56.0 63.9 65.2 72.7 83.9 87.4 81.9 71.1 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 151 155 1826 VECTOR WIND DIRECTION (MEAN) 133 57 121 123 37 152 196 62 343 343 279 331 114 VECTOR WIND MAGNITUDE(KNOTS) 0.3 0.1 1.3 0.8 0.3 2.8 1.1 0.7 1.8 0.7 0.4 1.0 0.2 WIND STEADINESES (MEAN %) 60.0 12.5 44.8 34.8 11.1 77.8 45.8 36.8 85.7 87.5 57.1 62.5 10.5 WIND SPEED (MEAN KNOTS) 0.5 0.8 2.9 2.3 2.7 3.6 2.4 1.9 2.1 0.8 0.7 1.6 1.9 FASTEST WIND DIRECTION 120 50 360 110 320 160 160 360 360 360 360 310 360 FASTEST WIND SPEED (KNOTS) 12 10 20 15 16 18 19 12 18 10 10 17 20 DAY 30 26 5 20 26 25 21 22 24 18 18 25 DAYS WITH SKY CLEAR (0-2)/8 23 13 19 11 19 29 31 31 29 28 21 20 274 DAYS WITH P.CLOUDY (3-6)/8 8 12 8 17 10 1 0 0 1 3 8 6 74 DAYS WITH CLOUDY (7-8)/8 0 3 4 2 2 0 0 0 0 0 1 5 17 DAYS WITH VISIBILITY =< 2 KM 0 0 0 0 0 0 0 0 0 0 0 2 2 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 939.9 937.9 933.5 932.0 930.1 928.8 926.8 928.3 933.8 937.6 940.0 941.1 934.2 MAX. QFE PRESSURE IN HPA 945.9 947.9 944.2 940.9 936.0 936.5 931.3 932.6 942.4 943.6 945.5 950.4 950.4 DAY-HOUR 6- 6 5- 6 23- 6 2- 6 15- 6 2- 6 29- 6 20- 6 24- 6 12- 6 27- 6 27- 6 MIN. QFE PRESSURE IN HPA 932.6 929.4 923.5 922.5 922.8 920.9 921.0 922.4 925.0 932.7 934.0 927.0 920.9 DAY-HOUR 4-12 12-12 5-15 15-12 10-15 16-15 5-15 2-15 7-15 2-12 12-15 11- 9 MEAN QNH PRESSURE IN HPA 1022.8 1020.6 1016.0 1014.3 1012.3 1010.9 1008.7 1010.4 1016.2 1020.4 1022.9 1024.1 1016.6 MAX. QNH PRESSURE IN HPA 1029.2 1031.4 1027.4 1023.9 1018.6 1019.2 1013.6 1015.0 1025.5 1026.8 1028.8 1034.1 1034.1 DAY-HOUR 6- 6 5- 6 23- 6 2- 6 15- 6 2- 6 29- 6 20- 6 24- 6 12- 6 27- 6 27- 6 MIN. QNH PRESSURE IN HPA 1015.0 1011.6 1005.2 1004.2 1004.5 1002.5 1002.6 1004.1 1006.9 1015.1 1016.5 1009.0 1002.5 DAY-HOUR 4-12 12-12 5-15 15-12 10-15 16-15 5-15 2-15 7-15 2-12 12-15 11- 9 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 940.5 938.3 934.4 932.9 931.2 929.9 927.9 929.4 934.5 938.4 940.6 941.6 935.0 MAX. QFE PRESSURE IN HPA 944.4 946.1 943.2 940.1 935.4 935.5 930.6 932.3 941.5 942.5 944.6 948.7 948.7 DAY 6 5 23 2 15 2 30 5 25 12 27 27 MIN. QFE PRESSURE IN HPA 936.4 932.9 928.4 926.3 925.2 923.2 924.6 925.3 928.4 935.0 935.6 929.7 923.2 DAY 31 12 13 16 11 17 5 3 4 2 25 11 MEAN QNH PRESSURE IN HPA 1023.5 1021.1 1017.0 1015.3 1013.5 1012.2 1010.0 1011.5 1017.0 1021.2 1023.6 1024.6 1017.5 MAX. QNH PRESSURE IN HPA 1027.6 1029.5 1026.4 1023.0 1018.0 1018.1 1012.9 1014.7 1024.5 1025.6 1027.8 1032.2 1032.2 DAY 6 5 23 2 15 2 30 5 25 12 27 27 MIN. QNH PRESSURE IN HPA 1019.1 1015.3 1010.5 1008.2 1007.1 1004.9 1006.4 1007.2 1010.5 1017.6 1018.2 1011.9 1004.9 DAY 31 12 13 16 11 17 5 3 4 2 25 11 MEAN QFF PRESSURE IN HPA 1025.6 1021.4 1016.4 1012.3 1009.4 1006.3 1003.7 1005.6 1012.9 1018.8 1023.7 1026.7 1015.2 MAX. QFF PRESSURE IN HPA 1030.7 1031.4 1026.5 1021.3 1015.0 1012.9 1007.1 1008.6 1019.9 1024.1 1028.4 1036.2 1036.2 DAY 9 5 23 2 15 2 24 20 25 12 27 27 MIN. QFF PRESSURE IN HPA 1019.3 1014.2 1009.3 1004.9 1002.3 999.3 1000.2 1000.5 1005.8 1014.6 1017.4 1013.0 999.3 DAY 31 26 13 16 11 17 5 3 4 2 12 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 941.7 939.5 935.4 933.9 931.8 930.4 928.5 930.2 935.5 939.3 941.6 942.6 935.9 MAX. QFE PRESSURE IN HPA 945.9 947.9 944.2 940.9 936.0 936.5 931.3 932.6 942.4 943.6 945.5 950.4 950.4 DAY 6 5 23 2 15 2 29 20 24 12 27 27 MIN. QFE PRESSURE IN HPA 937.4 933.4 929.2 926.9 925.2 924.9 925.2 926.0 929.5 936.0 936.4 930.1 924.9 DAY 31 12 20 16 11 17 5 3 7 2 25 11 MEAN QNH PRESSURE IN HPA 1024.8 1022.3 1018.0 1016.4 1014.1 1012.7 1010.6 1012.4 1018.1 1022.2 1024.6 1025.7 1018.5 MAX. QNH PRESSURE IN HPA 1029.2 1031.4 1027.4 1023.9 1018.6 1019.2 1013.6 1015.0 1025.5 1026.8 1028.8 1034.1 1034.1 DAY 6 5 23 2 15 2 29 20 24 12 27 27 MIN. QNH PRESSURE IN HPA 1020.1 1015.9 1011.4 1008.9 1007.1 1006.7 1007.1 1007.9 1011.7 1018.6 1019.1 1012.3 1006.7 DAY 31 12 20 16 11 17 5 3 7 2 25 11 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 940.1 938.2 933.7 932.2 930.4 929.3 927.2 928.9 934.2 938.0 940.2 941.2 934.5 MAX. QFE PRESSURE IN HPA 945.9 946.4 942.2 939.2 934.5 935.4 930.2 931.4 941.3 942.2 943.4 948.4 948.4 DAY 9 5 23 2 8 2 29 26 24 12 27 27 MIN. QFE PRESSURE IN HPA 935.3 932.2 927.9 925.3 923.3 923.7 923.4 925.4 927.4 934.4 936.4 927.0 923.3 DAY 4 12 20 16 11 17 5 3 7 2 12 11 MEAN QNH PRESSURE IN HPA 1023.0 1021.0 1016.1 1014.6 1012.7 1011.5 1009.2 1011.0 1016.7 1020.8 1023.1 1024.2 1017.0 MAX. QNH PRESSURE IN HPA 1029.2 1029.8 1025.3 1022.1 1017.0 1018.0 1012.4 1013.7 1024.3 1025.3 1026.6 1031.9 1031.9 DAY 9 5 23 2 8 2 29 26 24 12 27 27 MIN. QNH PRESSURE IN HPA 1017.9 1014.6 1010.0 1007.2 1005.0 1005.5 1005.1 1007.3 1009.4 1016.9 1019.1 1009.0 1005.0 DAY 4 12 20 16 11 17 5 3 7 2 12 11 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 938.5 936.5 932.0 930.4 928.7 927.6 925.3 926.9 932.4 936.3 938.7 940.0 932.8 MAX. QFE PRESSURE IN HPA 942.6 944.4 940.3 937.4 933.9 933.4 928.2 930.1 940.9 940.0 942.0 948.2 948.2 DAY 5 4 23 2 20 2 29 20 24 12 6 26 MIN. QFE PRESSURE IN HPA 932.6 929.4 924.5 922.5 923.3 921.9 922.2 923.4 925.6 932.7 934.4 929.6 921.9 DAY 4 12 5 15 11 16 5 12 7 2 12 11 MEAN QNH PRESSURE IN HPA 1021.3 1019.2 1014.3 1012.6 1010.8 1009.7 1007.2 1008.9 1014.8 1018.9 1021.5 1022.9 1015.2 MAX. QNH PRESSURE IN HPA 1025.7 1027.6 1023.2 1020.1 1016.4 1015.9 1010.3 1012.3 1023.9 1022.9 1025.1 1031.7 1031.7 DAY 5 4 23 2 20 2 29 20 24 12 6 26 MIN. QNH PRESSURE IN HPA 1015.0 1011.6 1006.3 1004.2 1005.0 1003.5 1003.9 1005.1 1007.5 1015.1 1016.9 1011.8 1003.5 DAY 4 12 5 15 11 16 5 12 7 2 12 11 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 938.9 936.9 932.2 930.6 928.6 926.9 924.8 926.3 932.2 936.3 939.1 940.3 932.7 MAX. QFE PRESSURE IN HPA 944.2 945.2 939.5 938.0 933.4 932.4 927.7 929.4 941.7 939.8 942.0 948.2 948.2 DAY 5 4 23 2 19 1 29 20 24 11 6 26 MIN. QFE PRESSURE IN HPA 932.6 930.4 923.5 923.1 922.8 920.9 921.0 922.4 925.0 932.7 934.0 931.3 920.9 DAY 4 13 5 15 10 16 5 2 7 2 12 10 MEAN QNH PRESSURE IN HPA 1021.7 1019.6 1014.6 1012.8 1010.7 1008.9 1006.7 1008.3 1014.6 1018.9 1021.9 1023.2 1015.1 MAX. QNH PRESSURE IN HPA 1027.4 1028.5 1022.4 1020.8 1015.9 1014.8 1009.7 1011.6 1024.7 1022.7 1025.1 1031.7 1031.7 DAY 5 4 23 2 19 1 29 20 24 11 6 26 MIN. QNH PRESSURE IN HPA 1015.0 1012.6 1005.2 1004.8 1004.5 1002.5 1002.6 1004.1 1006.9 1015.1 1016.5 1013.6 1002.5 DAY 4 13 5 15 10 16 5 2 7 2 12 10 MEAN QFF PRESSURE IN HPA 1023.7 1019.9 1013.9 1009.8 1006.6 1003.0 1000.4 1002.4 1010.4 1016.4 1022.0 1025.2 1012.8 MAX. QFF PRESSURE IN HPA 1029.0 1030.1 1022.7 1019.0 1013.3 1009.8 1003.4 1005.9 1020.3 1020.9 1026.2 1035.0 1035.0 DAY 6 4 23 2 19 1 29 25 24 11 19 26 MIN. QFF PRESSURE IN HPA 1016.4 1012.8 1003.7 1001.9 999.6 996.9 996.1 997.6 1002.3 1011.8 1014.7 1014.4 996.1 DAY 4 13 5 15 30 16 5 2 7 2 12 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.9 11.7 18.7 22.9 31.1 35.8 37.6 36.4 30.0 21.3 15.5 5.9 22.5 MINIMUN AIR TEMPERATURE (C) -4.8 3.6 10.3 13.8 19.7 24.0 27.0 24.8 18.4 9.7 5.6 -1.7 12.5 DAYS WITH MINIMUM TEMP. >=21 0 0 1 1 12 28 31 31 12 0 0 0 116 DAYS WITH MINIMUM TEMP. <=-4 24 1 0 0 0 0 0 0 0 0 0 13 38 DAYS WITH FREEZING MIN.<= 0 29 3 0 0 0 0 0 0 0 0 1 22 55 TEMPERATURE RECORDS LOWEST(C) -9.0 -4.0 4.0 8.0 12.0 20.0 24.0 22.0 10.0 5.0 -3.0 -9.0 -9.0 DAY 21 1 6 16 3 5 16 25 27 18 30 11 MAXIMUM AIR TEMPERATURE (C) 9.2 17.7 24.4 28.3 36.7 41.3 43.0 42.7 36.9 28.7 23.2 11.7 28.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 3 13 30 30 31 31 30 12 0 0 180 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 16.0 25.0 33.0 35.0 41.0 46.0 48.0 47.0 42.0 38.0 28.0 17.0 48.0 DAY 18 24 27 30 17 27 10 4 1 3 23 8 DIF. BETWEEN (MAX.-MIN.) (C) 14.0 14.1 14.1 14.5 17.0 17.3 16.0 17.9 18.5 19.0 17.6 13.4 16.2 MEAN DAILY TEMP. (MDT) (C) 2.2 10.6 17.4 21.0 28.2 32.6 35.0 33.8 27.6 19.2 14.4 5.0 20.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 5.5 35.0 223.0 348.5 434.0 395.5 199.0 23.0 0.0 0.0 1663.5 HEATING DEG. DAYS(BASE 18 0C) 489.5 213.5 49.0 4.0 0.0 0.0 0.0 0.0 0.0 25.0 109.0 403.0 1293.0 DEWPOINT (MEAN C) -6.4 -0.2 3.8 2.0 3.5 5.7 8.3 6.3 6.7 -0.6 -0.6 -4.7 2.0 MIXING RATIO (G/KG) 2.59 4.18 5.68 4.94 5.42 6.41 7.60 6.61 6.92 3.99 4.08 3.07 5.13 VAPOUR PRESSURE (HPA) 3.90 6.26 8.46 7.33 8.06 9.46 11.17 9.74 10.26 5.99 6.13 4.63 7.62 SATURATION DEF. (HPA) 4.08 8.24 14.27 21.99 39.39 51.99 55.99 53.91 35.04 21.44 12.64 5.14 27.01 RELATIVE HUMIDITY (MEAN %) 55 48 42 29 19 17 19 18 25 25 36 52 32 RELATIVE HUMIDITY (MAX. %) 82 75 67 49 37 31 31 32 38 42 57 72 51 RELATIVE HUMIDITY (MIN. %) 33 31 25 17 11 10 12 10 17 16 23 36 20 RELATIVE HUMIDITY (MEAN% 03UTC) 80 75 64 49 37 31 31 32 38 42 56 70 50 RELATIVE HUMIDITY (MEAN% 09UTC) 40 37 34 21 14 13 16 13 20 18 25 39 24 RELATIVE HUMIDITY (MEAN% 15UTC) 58 45 40 24 16 14 13 14 23 24 39 54 30 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 6.0 17.0 59.6 10.0 0.0 0.0 0.0 0.0 0.0 0.0 2.1 4.7 99.4 DAYS WITH PRECIPITATION >=10 0 1 3 0 0 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 0 1 3 1 0 0 0 0 0 0 0 0 5 DAYS WITH PRECIPITATION >= 1 2 4 3 2 0 0 0 0 0 0 1 2 14 DAYS WITH PRECIPITATION 2 6 6 2 0 0 0 0 0 0 2 4 22 GREATEST DAILY PRECIPITATION 3.0 10.0 21.0 7.0 0.0 0.0 0.0 0.0 0.0 0.0 1.6 3.3 21.0 DAY 1 16 17 23 ** ** ** ** ** ** 7 17 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH SNOW OR SLEET 2 0 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH DUST 1 4 4 8 1 0 1 0 1 0 2 0 22 WIND DIRECTION (PREVAILING) 315 315 315 315 360 360 360 360 360 360 360 360 360 PREVAILING WIND SPEED(KNOTS) 7.2 8.9 6.9 7.0 8.5 6.5 7.3 7.6 5.6 7.0 5.8 8.8 7.2 PREVAILING WIND PERCENT 11.0 9.0 12.3 24.0 9.7 9.3 20.6 11.0 10.0 25.2 11.3 11.0 11.2 CALMS PERCENT OF WIND 68.4 67.6 69.7 52.0 76.8 83.3 66.5 78.7 79.3 52.9 69.3 72.9 69.8 NO. OF WIND OBSERVATION 155 145 155 150 155 150 155 155 150 155 150 155 1830 VECTOR WIND DIRECTION (MEAN) 322 311 310 307 332 351 3 354 351 341 319 324 334 VECTOR WIND MAGNITUDE(KNOTS) 0.7 0.9 0.6 1.7 1.2 0.8 1.9 1.1 0.9 2.2 0.8 1.3 1.1 WIND STEADINESES (MEAN %) 30.4 47.4 25.0 50.0 66.7 80.0 79.2 78.6 81.8 78.6 47.1 76.5 55.0 WIND SPEED (MEAN KNOTS) 2.3 1.9 2.4 3.4 1.8 1.0 2.4 1.4 1.1 2.8 1.7 1.7 2.0 FASTEST WIND DIRECTION 180 310 180 360 160 360 50 360 360 360 310 340 180 FASTEST WIND SPEED (KNOTS) 25 25 25 18 15 10 15 10 10 15 15 13 25 DAY 19 27 13 5 1 4 12 2 2 4 28 8 DAYS WITH SKY CLEAR (0-2)/8 25 15 15 18 26 29 31 31 30 30 22 17 289 DAYS WITH P.CLOUDY (3-6)/8 5 11 10 8 5 1 0 0 0 1 8 6 55 DAYS WITH CLOUDY (7-8)/8 1 3 6 4 0 0 0 0 0 0 0 8 22 DAYS WITH VISIBILITY =< 2 KM 1 0 0 0 1 0 0 0 0 0 1 0 3 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 943.2 937.9 935.7 932.2 932.8 928.0 926.3 926.6 933.9 940.7 941.4 945.1 935.3 MAX. QFE PRESSURE IN HPA 953.1 947.1 943.4 943.0 938.0 938.4 933.0 932.6 942.4 946.4 951.6 952.3 953.1 DAY-HOUR 30- 9 28- 6 18- 6 24- 6 10- 6 3- 6 22- 6 31- 6 29- 6 29- 6 30- 6 1- 6 MIN. QFE PRESSURE IN HPA 918.4 931.5 928.3 918.4 926.9 918.6 919.6 919.4 927.3 929.5 924.4 934.7 918.4 DAY-HOUR 19- 9 10-15 7-15 9-15 1-15 28-15 2-15 3-15 9-15 3-15 27-15 24-12 MEAN QNH PRESSURE IN HPA 1026.4 1020.7 1018.3 1014.5 1015.2 1010.1 1008.3 1008.5 1016.3 1023.6 1024.4 1028.3 1017.9 MAX. QNH PRESSURE IN HPA 1037.0 1030.5 1026.6 1026.1 1020.8 1021.2 1015.4 1015.0 1025.5 1029.8 1035.3 1036.1 1037.0 DAY-HOUR 30- 9 28- 6 18- 6 24- 6 10- 6 3- 6 22- 6 31- 6 29- 6 29- 6 30- 6 1- 6 MIN. QNH PRESSURE IN HPA 999.8 1013.8 1010.4 999.8 1008.9 1000.0 1001.1 1000.9 1009.3 1011.7 1006.2 1017.2 999.8 DAY-HOUR 19- 9 10-15 7-15 9-15 1-15 28-15 2-15 3-15 9-15 3-15 27-15 24-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 943.1 938.2 936.0 933.0 933.3 929.1 927.4 927.4 934.6 940.9 941.9 945.4 935.9 MAX. QFE PRESSURE IN HPA 950.3 946.0 942.3 942.1 937.2 938.1 932.4 931.9 940.4 945.0 950.2 951.0 951.0 DAY 31 28 18 25 10 3 22 26 29 30 30 1 MIN. QFE PRESSURE IN HPA 920.5 933.4 931.0 924.2 928.3 920.6 923.4 922.4 929.6 932.2 929.5 936.6 920.5 DAY 19 11 4 9 12 29 31 2 9 4 26 25 MEAN QNH PRESSURE IN HPA 1026.3 1021.0 1018.7 1015.5 1015.7 1011.2 1009.4 1009.5 1017.1 1023.9 1024.9 1028.7 1018.5 MAX. QNH PRESSURE IN HPA 1034.0 1029.3 1025.4 1025.2 1019.9 1020.9 1014.8 1014.2 1023.3 1028.3 1033.8 1034.7 1034.7 DAY 31 28 18 25 10 3 22 26 29 30 30 1 MIN. QNH PRESSURE IN HPA 1002.0 1015.9 1013.3 1006.0 1010.4 1002.1 1005.1 1004.1 1011.8 1014.6 1011.7 1019.3 1002.0 DAY 19 11 4 9 12 29 31 2 9 4 26 25 MEAN QFF PRESSURE IN HPA 1030.1 1021.8 1017.3 1012.8 1011.0 1005.1 1002.6 1003.2 1012.8 1022.3 1024.9 1031.4 1016.3 MAX. QFF PRESSURE IN HPA 1038.8 1032.8 1024.8 1023.5 1015.5 1015.6 1008.1 1008.9 1020.8 1027.8 1036.8 1038.0 1038.8 DAY 31 1 23 25 3 3 22 26 29 30 30 11 MIN. QFF PRESSURE IN HPA 1001.4 1015.1 1009.8 1002.9 1004.7 994.9 997.7 997.6 1006.4 1011.4 1011.5 1021.1 994.9 DAY 19 11 13 9 12 29 11 2 9 4 26 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 944.6 939.6 937.4 934.0 934.3 929.6 927.9 928.3 935.5 942.2 943.0 946.7 936.9 MAX. QFE PRESSURE IN HPA 952.6 947.1 943.4 943.0 938.0 938.4 933.0 932.6 942.4 946.4 951.6 952.3 952.6 DAY 30 28 18 24 10 3 22 31 29 29 30 1 MIN. QFE PRESSURE IN HPA 920.5 935.0 932.3 925.0 929.2 921.3 924.4 923.4 930.8 933.4 930.0 938.4 920.5 DAY 19 13 4 9 12 29 2 2 9 3 26 24 MEAN QNH PRESSURE IN HPA 1027.8 1022.5 1020.2 1016.5 1016.8 1011.8 1010.0 1010.4 1018.2 1025.3 1026.2 1030.1 1019.6 MAX. QNH PRESSURE IN HPA 1036.4 1030.5 1026.6 1026.1 1020.8 1021.2 1015.4 1015.0 1025.5 1029.8 1035.3 1036.1 1036.4 DAY 30 28 18 24 10 3 22 31 29 29 30 1 MIN. QNH PRESSURE IN HPA 1002.0 1017.6 1014.7 1006.9 1011.4 1002.9 1006.2 1005.1 1013.1 1015.9 1012.2 1021.2 1002.0 DAY 19 13 4 9 12 29 2 2 9 3 26 24 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 943.6 938.6 936.3 932.7 933.3 928.5 926.8 926.9 934.3 940.9 941.6 945.2 935.7 MAX. QFE PRESSURE IN HPA 953.1 946.0 943.0 942.5 936.6 937.0 931.4 931.4 940.4 944.6 950.5 951.3 953.1 DAY 30 1 23 24 10 3 22 31 29 29 30 10 MIN. QFE PRESSURE IN HPA 918.4 933.4 931.0 923.2 928.4 921.0 922.4 922.0 929.4 932.4 928.4 936.4 918.4 DAY 19 13 4 9 12 28 2 2 9 3 26 24 MEAN QNH PRESSURE IN HPA 1026.7 1021.4 1018.9 1015.2 1015.8 1010.6 1008.8 1008.9 1016.8 1023.9 1024.6 1028.5 1018.3 MAX. QNH PRESSURE IN HPA 1037.0 1029.3 1026.1 1025.6 1019.3 1019.7 1013.7 1013.7 1023.3 1027.8 1034.2 1035.0 1037.0 DAY 30 1 23 24 10 3 22 31 29 29 30 10 MIN. QNH PRESSURE IN HPA 999.8 1015.9 1013.3 1004.9 1010.5 1002.6 1004.1 1003.6 1011.6 1014.8 1010.5 1019.1 999.8 DAY 19 13 4 9 12 28 2 2 9 3 26 24 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 942.3 936.7 934.5 930.8 931.8 926.9 925.2 925.5 932.5 939.7 940.3 944.1 934.2 MAX. QFE PRESSURE IN HPA 952.3 943.9 941.4 941.4 935.3 934.7 929.4 930.2 938.9 944.0 949.4 949.7 952.3 DAY 30 28 23 24 10 2 21 31 29 29 30 10 MIN. QFE PRESSURE IN HPA 921.0 932.2 930.3 920.3 927.9 919.4 920.7 921.0 927.9 930.3 925.4 934.7 919.4 DAY 19 10 3 9 12 28 2 2 9 3 27 24 MEAN QNH PRESSURE IN HPA 1025.3 1019.4 1017.0 1013.1 1014.1 1008.9 1007.1 1007.3 1014.9 1022.6 1023.3 1027.3 1016.7 MAX. QNH PRESSURE IN HPA 1036.1 1027.1 1024.4 1024.4 1017.9 1017.2 1011.6 1012.4 1021.7 1027.2 1033.0 1033.3 1036.1 DAY 30 28 23 24 10 2 21 31 29 29 30 10 MIN. QNH PRESSURE IN HPA 1002.6 1014.6 1012.5 1001.8 1010.0 1000.9 1002.2 1002.6 1010.0 1012.5 1007.3 1017.2 1000.9 DAY 19 10 3 9 12 28 2 2 9 3 27 24 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 942.6 936.8 934.4 930.4 931.2 926.0 924.4 924.8 932.4 939.6 940.2 944.0 933.9 MAX. QFE PRESSURE IN HPA 953.0 943.4 941.4 941.4 934.6 934.4 928.7 929.5 938.4 944.2 949.4 949.5 953.0 DAY 30 1 23 24 10 2 21 31 29 31 30 10 MIN. QFE PRESSURE IN HPA 928.4 931.5 928.3 918.4 926.9 918.6 919.6 919.4 927.3 929.5 924.4 934.7 918.4 DAY 18 10 7 9 1 28 2 3 9 3 27 24 MEAN QNH PRESSURE IN HPA 1025.7 1019.4 1016.9 1012.6 1013.5 1007.9 1006.3 1006.6 1014.8 1022.5 1023.1 1027.2 1016.4 MAX. QNH PRESSURE IN HPA 1036.8 1026.6 1024.4 1024.4 1017.1 1016.9 1010.8 1011.7 1021.2 1027.4 1033.0 1033.1 1036.8 DAY 30 1 23 24 10 2 21 31 29 31 30 10 MIN. QNH PRESSURE IN HPA 1010.5 1013.8 1010.4 999.8 1008.9 1000.0 1001.1 1000.9 1009.3 1011.7 1006.2 1017.2 999.8 DAY 18 10 7 9 1 28 2 3 9 3 27 24 MEAN QFF PRESSURE IN HPA 1029.5 1020.2 1015.3 1009.9 1008.7 1001.8 999.5 1000.4 1010.4 1020.8 1023.1 1029.9 1014.1 MAX. QFF PRESSURE IN HPA 1041.0 1029.6 1024.3 1022.3 1014.0 1011.6 1004.5 1006.0 1018.0 1026.9 1036.0 1037.2 1041.0 DAY 30 1 23 24 2 3 16 31 28 31 30 10 MIN. QFF PRESSURE IN HPA 1011.8 1014.2 1008.5 996.7 1004.2 992.9 993.5 994.0 1003.8 1008.4 1006.0 1019.3 992.9 DAY 19 24 7 9 12 28 2 3 9 3 27 24 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION TABASS (40791) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 33 36 N LONGITUDE 56 55 E DATA PROCESSING CENTER ELEVATION 711.0 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.8 12.3 17.2 23.4 31.4 35.5 37.4 34.4 30.1 26.3 18.3 10.6 23.8 MINIMUN AIR TEMPERATURE (C) 1.9 3.9 8.2 12.4 20.0 23.8 26.6 22.7 18.1 16.2 8.3 1.3 13.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 1 20 28 31 25 3 1 0 0 109 DAYS WITH MINIMUM TEMP. <=-4 4 0 0 0 0 0 0 0 0 0 0 1 5 DAYS WITH FREEZING MIN.<= 0 13 5 1 0 0 0 0 0 0 0 0 11 30 TEMPERATURE RECORDS LOWEST(C) -4.0 -2.0 0.0 4.0 12.0 20.0 23.0 17.0 15.0 11.0 3.0 -5.0 -5.0 DAY 1 18 18 7 6 5 21 14 10 27 30 24 MAXIMUM AIR TEMPERATURE (C) 14.7 18.6 23.0 29.0 37.0 41.0 42.6 40.0 36.6 33.0 25.8 18.3 30.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 3 11 28 30 31 31 30 26 5 0 195 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 20.0 26.0 33.0 38.0 43.0 45.0 47.0 43.0 41.0 37.0 32.0 23.0 47.0 DAY 20 9 12 29 18 18 12 27 1 10 2 1 DIF. BETWEEN (MAX.-MIN.) (C) 12.8 14.7 14.8 16.6 17.0 17.2 16.0 17.3 18.5 16.8 17.5 17.0 16.4 MEAN DAILY TEMP. (MDT) (C) 8.3 11.2 15.6 20.7 28.5 32.4 34.6 31.4 27.3 24.6 17.1 9.8 21.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 4.5 35.0 235.0 341.0 422.0 321.5 190.0 114.5 4.5 0.0 1668.0 HEATING DEG. DAYS(BASE 18 0C) 299.5 189.5 95.5 13.0 0.0 0.0 0.0 0.0 0.0 0.0 52.5 253.5 903.5 DEWPOINT (MEAN C) 3.2 -1.3 0.5 1.1 6.1 8.4 11.6 7.3 4.8 7.9 3.6 -1.9 4.3 MIXING RATIO (G/KG) 5.39 3.90 4.36 4.61 6.52 7.67 9.85 7.09 5.96 7.22 5.38 3.62 5.96 VAPOUR PRESSURE (HPA) 8.06 5.83 6.52 6.86 9.67 11.32 14.42 10.50 8.87 10.77 8.07 5.45 8.86 SATURATION DEF. (HPA) 3.84 9.45 14.54 23.67 39.15 48.80 51.92 46.15 36.08 25.21 14.33 8.23 26.78 RELATIVE HUMIDITY (MEAN %) 70 43 36 25 23 21 23 20 22 33 40 44 33 RELATIVE HUMIDITY (MAX. %) 88 66 57 40 39 34 34 34 37 48 61 64 50 RELATIVE HUMIDITY (MIN. %) 56 28 23 17 15 15 18 14 15 23 28 31 24 RELATIVE HUMIDITY (MEAN% 03UTC) 88 65 56 40 39 34 34 34 37 48 61 63 50 RELATIVE HUMIDITY (MEAN% 09UTC) 61 35 28 19 17 16 19 16 17 25 30 31 26 RELATIVE HUMIDITY (MEAN% 15UTC) 71 39 32 22 21 17 20 16 20 35 43 49 32 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 16.8 4.2 11.0 0.0 0.2 0.0 0.0 0.0 0.0 0.0 2.0 0.5 34.7 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH PRECIPITATION >= 5 1 0 1 0 0 0 0 0 0 0 0 0 2 DAYS WITH PRECIPITATION >= 1 6 1 3 0 0 0 0 0 0 0 1 0 11 DAYS WITH PRECIPITATION 8 3 4 0 3 0 0 0 1 0 3 2 24 GREATEST DAILY PRECIPITATION 5.2 4.0 8.0 0.0 0.2 0.0 0.0 0.0 0.0 0.0 2.0 0.3 8.0 DAY 20 15 3 ** 3