STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. 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OF WIND OBSERVATION **** **** **** **** **** **** 151 155 149 155 100 93 803 VECTOR WIND DIRECTION (MEAN) *** *** *** *** *** *** 349 356 318 197 *** *** *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** **** **** 4.9 5.0 2.3 4.5 **** **** **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** ***** ***** 58.3 61.0 37.1 63.4 ***** ***** ***** WIND SPEED (MEAN KNOTS) **** **** **** **** **** **** 8.4 8.2 6.2 7.1 **** **** **** FASTEST WIND DIRECTION *** *** *** *** *** *** 350 340 70 190 *** *** *** FASTEST WIND SPEED (KNOTS) *** *** *** *** *** *** 35 25 14 33 *** *** *** DAY ** ** ** ** ** ** 2 4 1 23 ** ** DAYS WITH SKY CLEAR (0-2)/8 **** **** **** **** **** **** 28 28 25 12 4 11 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** **** **** **** **** 3 3 5 13 10 7 **** DAYS WITH CLOUDY (7-8)/8 **** **** **** **** **** **** 0 0 0 6 16 12 **** DAYS WITH VISIBILITY =< 2 KM **** **** **** **** **** **** 0 0 0 0 13 14 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** 347.9 344.2 304.0 214.8 109.2 127.2 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. 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QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** 820.9 822.2 826.3 825.9 821.8 820.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** 824.2 826.0 830.3 830.0 827.4 828.8 ****** DAY ** ** ** ** ** ** 31 30 23 15 15 7 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** 817.3 818.0 823.2 818.0 813.2 807.0 ****** DAY ** ** ** ** ** ** 24 22 15 1 8 27 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** 1004.5 1006.0 1010.9 1010.4 1005.6 1004.3 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** 1008.4 1010.5 1015.6 1015.2 1012.2 1013.8 ****** DAY ** ** ** ** ** ** 31 30 23 15 15 7 MIN. 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QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1986 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** 819.5 820.9 825.1 824.9 ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** 823.1 824.5 829.1 829.2 ****** ****** ****** DAY ** ** ** ** ** ** 31 30 23 15 ** ** MIN. 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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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** 19.5 ***** 26.8 26.4 22.6 ***** ***** ***** ***** MINIMUN AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** DAYS WITH MINIMUM TEMP. >=21 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH MINIMUM TEMP. <=-4 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH FREEZING MIN.<= 0 **** **** **** **** **** **** **** **** **** **** **** **** **** TEMPERATURE RECORDS LOWEST(C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** DAY ** ** ** ** ** ** ** ** ** ** ** ** MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** 14.0 22.4 27.3 30.1 29.7 26.1 15.0 ***** ***** ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** 0 0 6 17 15 2 0 **** **** **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** 0 0 0 0 0 0 0 **** **** **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** 23.0 25.2 32.0 35.0 34.0 30.4 25.3 ***** ***** ***** DAY ** ** ** 30 9 29 15 3 9 2 ** ** DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** ****** ****** 0.0 ****** 0.0 ****** 0.0 ****** ****** ****** ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** ****** ****** 0.0 ****** 0.0 ****** 0.0 ****** ****** ****** ****** DEWPOINT (MEAN C) ***** ***** ***** ***** 1.6 ***** 9.0 6.3 2.2 ***** ***** ***** ***** MIXING RATIO (G/KG) ****** ****** ****** ****** 5.48 ****** 8.98 7.55 5.60 ****** ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** 7.18 ****** 11.68 9.84 7.35 ****** ****** ****** ****** SATURATION DEF. 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OF WIND OBSERVATION **** **** **** 117 124 119 124 123 120 117 89 90 1023 VECTOR WIND DIRECTION (MEAN) *** *** *** *** 213 *** 339 298 277 *** *** *** *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** 5.6 **** 4.0 2.0 2.5 **** **** **** **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** 68.3 ***** 40.4 21.5 29.8 ***** ***** ***** ***** WIND SPEED (MEAN KNOTS) **** **** **** **** 8.2 **** 9.9 9.3 8.4 **** **** **** **** FASTEST WIND DIRECTION *** *** *** *** 180 *** 10 150 200 *** *** *** *** FASTEST WIND SPEED (KNOTS) *** *** *** *** 29 *** 31 33 23 *** *** *** *** DAY ** ** ** ** 10 ** 30 5 5 ** ** ** DAYS WITH SKY CLEAR (0-2)/8 **** **** **** 16 7 25 29 28 28 10 16 3 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** **** 6 18 3 2 3 2 13 9 9 **** DAYS WITH CLOUDY (7-8)/8 **** **** **** 8 6 2 0 0 0 8 5 19 **** DAYS WITH VISIBILITY =< 2 KM **** **** **** 1 1 1 2 0 5 3 0 14 **** DURATION OF SUNSHINE HOURS ****** ****** ****** 211.4 233.9 291.4 334.8 352.2 289.3 189.9 228.5 69.3 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. 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QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** 820.9 822.9 821.7 821.2 821.3 823.7 824.2 822.9 818.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 827.3 826.6 825.5 824.0 828.0 827.5 829.6 828.8 827.8 ****** DAY ** ** ** 22 13 28 11 8 25 16 30 1 MIN. 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QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** 820.7 822.3 820.9 820.2 820.6 822.8 823.7 ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 825.7 826.0 824.0 823.0 826.0 827.0 828.9 ****** ****** ****** DAY ** ** ** 22 16 29 10 7 25 1 ** ** MIN. 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QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** 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. 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QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** 10.1 16.8 21.3 24.9 23.6 21.5 15.7 ***** ***** ***** MINIMUN AIR TEMPERATURE (C) ***** ***** ***** 7.1 11.8 15.8 19.2 18.3 16.1 ***** ***** ***** ***** DAYS WITH MINIMUM TEMP. >=21 **** **** **** 0 0 1 7 4 0 **** **** **** **** DAYS WITH MINIMUM TEMP. <=-4 **** **** **** 0 0 0 0 0 0 **** **** **** **** DAYS WITH FREEZING MIN.<= 0 **** **** **** 0 0 0 0 0 0 **** **** **** **** TEMPERATURE RECORDS LOWEST(C) ***** ***** ***** 5.0 6.0 10.0 13.8 13.0 11.8 ***** ***** ***** ***** DAY ** ** ** 15 3 17 27 30 13 ** ** ** MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** 14.3 20.3 25.4 29.5 27.9 25.9 19.0 10.2 ***** ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** 0 0 3 11 6 0 0 0 **** **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** 0 0 0 0 0 0 0 1 **** **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** 18.5 26.2 32.0 39.6 34.4 29.5 23.8 15.6 ***** ***** DAY ** ** ** 17 18 10 11 1 8 28 3 ** DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** 7.2 8.5 9.6 10.3 9.6 9.8 ***** ***** ***** ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** 10.7 16.1 20.6 24.4 23.1 21.0 ***** ***** ***** ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** ****** 0.0 1.0 35.0 108.1 77.3 21.1 0.0 ****** ****** ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** ****** 138.0 77.3 8.8 0.0 0.4 2.9 17.0 ****** ****** ****** DEWPOINT (MEAN C) ***** ***** ***** 3.8 1.9 4.6 10.6 11.8 6.6 3.4 ***** ***** ***** MIXING RATIO (G/KG) ****** ****** ****** 6.44 5.48 6.71 10.25 10.89 7.61 6.14 ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** ****** 8.39 7.17 8.74 13.26 14.09 9.94 8.05 ****** ****** ****** SATURATION DEF. (HPA) ****** ****** ****** 4.22 12.48 17.20 19.06 15.83 16.21 10.26 ****** ****** ****** RELATIVE HUMIDITY (MEAN %) *** *** *** 67 39 37 44 51 40 48 *** *** *** RELATIVE HUMIDITY (MAX. %) 93 91 83 78 53 49 58 66 52 60 70 78 69 RELATIVE HUMIDITY (MIN. %) 86 82 69 52 29 26 32 36 29 40 49 64 50 RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** 75 49 47 56 64 51 *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) 90 84 76 62 35 35 41 50 39 45 59 71 57 RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** 73 35 30 35 37 31 52 67 *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 165.0 0.0 0.0 80.6 22.3 3.6 0.6 8.1 0.0 51.0 65.4 128.2 524.8 DAYS WITH PRECIPITATION >=10 8 0 0 2 1 0 0 0 0 2 2 6 21 DAYS WITH PRECIPITATION >= 5 14 0 0 6 1 0 0 1 0 4 6 8 40 DAYS WITH PRECIPITATION >= 1 19 0 0 11 2 1 0 2 0 5 10 11 61 DAYS WITH PRECIPITATION 19 0 0 13 3 4 2 3 0 8 12 14 78 GREATEST DAILY PRECIPITATION 20.0 0.0 0.0 20.0 21.0 2.0 0.3 5.0 0.0 19.0 14.3 28.0 28.0 DAY 17 ** ** 13 1 24 9 9 ** 16 12 26 DAY WITH THUNDER STORM 2 0 1 8 2 2 0 1 0 1 2 1 20 DAYS WITH SNOW OR SLEET 14 8 9 0 0 0 0 0 0 0 5 9 45 DAYS WITH DUST 0 0 0 1 7 13 1 1 3 8 5 0 39 WIND DIRECTION (PREVAILING) *** *** *** 360 225 225 360 360 360 225 *** *** *** PREVAILING WIND SPEED(KNOTS) **** **** **** 10.2 10.5 12.8 15.0 14.0 11.8 9.4 **** **** **** PREVAILING WIND PERCENT ***** ***** ***** 18.4 30.5 25.8 63.2 51.6 21.5 15.2 ***** ***** ***** CALMS PERCENT OF WIND ***** ***** ***** 24.0 16.7 19.2 11.0 14.2 30.2 42.0 ***** ***** ***** NO. OF WIND OBSERVATION 93 78 87 125 174 151 155 155 149 138 106 88 1499 VECTOR WIND DIRECTION (MEAN) *** *** *** 181 221 239 359 346 282 252 *** *** *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** 1.3 4.4 3.2 9.6 7.5 2.8 2.2 **** **** **** WIND STEADINESES (MEAN %) ***** ***** ***** 18.8 51.2 37.6 80.0 67.6 34.6 37.3 ***** ***** ***** WIND SPEED (MEAN KNOTS) **** **** **** 6.9 8.6 8.5 12.0 11.1 8.1 5.9 **** **** **** FASTEST WIND DIRECTION *** *** *** 180 200 180 360 360 180 200 *** *** *** FASTEST WIND SPEED (KNOTS) *** *** *** 43 39 25 29 25 21 29 *** *** *** DAY ** ** ** 17 9 22 7 5 5 4 ** ** DAYS WITH SKY CLEAR (0-2)/8 5 7 8 6 24 24 30 28 30 10 9 6 187 DAYS WITH P.CLOUDY (3-6)/8 9 11 12 12 7 6 1 3 0 17 12 14 104 DAYS WITH CLOUDY (7-8)/8 16 10 11 12 0 0 0 0 0 4 9 10 72 DAYS WITH VISIBILITY =< 2 KM 14 5 7 5 2 0 0 0 0 2 3 9 47 DURATION OF SUNSHINE HOURS 91.3 126.3 ****** ****** ****** 180.1 ****** ****** ****** ****** 138.8 139.5 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** 819.7 821.6 819.4 818.4 819.5 822.8 824.7 ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 826.2 826.6 825.0 824.0 824.4 827.4 831.0 ****** ****** ****** DAY-HOUR **-** **-** **-** 13- 6 16- 6 12- 6 31- 6 21- 6 15- 9 28- 9 **-** **-** MIN. QFE PRESSURE IN HPA ****** ****** ****** 816.0 814.8 813.0 814.0 815.0 819.0 818.0 ****** ****** ****** DAY-HOUR **-** **-** **-** 4- 6 1- 3 30-15 8-15 29-15 3-15 30-12 **-** **-** MEAN QNH PRESSURE IN HPA ****** ****** ****** 1003.1 1005.4 1002.8 1001.5 1002.9 1006.8 1009.0 ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1010.8 1011.2 1009.4 1008.2 1008.7 1012.2 1016.4 ****** ****** ****** DAY-HOUR **-** **-** **-** 13- 6 16- 6 12- 6 31- 6 21- 6 15- 9 28- 9 **-** **-** MIN. QNH PRESSURE IN HPA ****** ****** ****** 998.8 997.3 995.2 996.4 997.6 1002.3 1001.1 ****** ****** ****** DAY-HOUR **-** **-** **-** 4- 6 1- 3 30-15 8-15 29-15 3-15 30-12 **-** **-** 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 ****** ****** ****** 819.8 821.4 819.4 818.3 819.5 822.5 ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 824.6 826.0 824.0 823.8 823.4 826.8 ****** ****** ****** ****** DAY ** ** ** 11 16 12 31 21 15 ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** 816.0 814.8 814.9 814.5 816.2 819.0 ****** ****** ****** ****** DAY ** ** ** 30 1 24 1 3 17 ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** 1003.2 1005.2 1002.7 1001.5 1002.9 1006.4 ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1008.9 1010.5 1008.2 1007.9 1007.5 1011.5 ****** ****** ****** ****** DAY ** ** ** 11 16 12 31 21 15 ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** 998.8 997.3 997.5 997.0 999.0 1002.3 ****** ****** ****** ****** DAY ** ** ** 30 1 24 1 3 17 ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** 997.8 996.8 991.0 987.1 989.2 994.8 ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1005.5 1003.0 994.6 992.5 995.2 999.1 ****** ****** ****** ****** DAY ** ** ** 13 5 3 27 5 30 ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** 993.6 991.7 987.3 981.6 984.7 989.4 ****** ****** ****** ****** DAY ** ** ** 30 9 29 15 2 17 ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 815.6 814.7 812.4 820.0 822.1 819.8 818.8 820.0 823.2 825.1 824.4 821.9 819.8 MAX. QFE PRESSURE IN HPA 823.0 821.6 819.0 826.2 826.6 825.0 824.0 824.4 827.2 830.2 831.4 829.7 831.4 DAY 9 6 17 13 16 12 31 21 15 28 6 3 MIN. QFE PRESSURE IN HPA 809.0 804.0 802.3 816.0 814.8 815.0 815.6 816.7 819.5 819.5 817.8 806.0 802.3 DAY 18 2 4 4 1 24 8 3 17 30 28 26 MEAN QNH PRESSURE IN HPA 998.3 997.2 994.6 1003.5 1006.0 1003.2 1002.0 1003.5 1007.2 1009.5 1008.6 1005.7 1003.3 MAX. QNH PRESSURE IN HPA 1007.0 1005.4 1002.3 1010.8 1011.2 1009.4 1008.2 1008.7 1012.0 1015.5 1016.9 1014.9 1016.9 DAY 9 6 17 13 16 12 31 21 15 28 6 3 MIN. QNH PRESSURE IN HPA 990.5 984.6 982.6 998.8 997.3 997.6 998.3 999.6 1002.9 1002.9 1000.9 987.0 982.6 DAY 18 2 4 4 1 24 8 3 17 30 28 26 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 815.7 814.6 812.8 820.0 822.2 819.8 818.8 819.9 823.2 825.1 824.0 821.8 819.8 MAX. QFE PRESSURE IN HPA 823.0 822.0 819.5 825.8 826.4 825.0 823.8 823.6 827.4 831.0 830.2 828.9 831.0 DAY 9 6 16 13 16 12 30 21 15 28 6 3 MIN. QFE PRESSURE IN HPA 809.0 803.0 800.0 816.0 815.5 814.8 815.0 816.8 819.8 819.0 817.0 806.0 800.0 DAY 18 1 4 4 1 30 8 3 3 30 19 26 MEAN QNH PRESSURE IN HPA 998.4 997.1 995.0 1003.4 1006.1 1003.3 1002.0 1003.3 1007.3 1009.5 1008.2 1005.6 1003.3 MAX. QNH PRESSURE IN HPA 1007.0 1005.8 1002.9 1010.3 1011.0 1009.4 1007.9 1007.7 1012.2 1016.4 1015.5 1014.0 1016.4 DAY 9 6 16 13 16 12 30 21 15 28 6 3 MIN. QNH PRESSURE IN HPA 990.5 983.4 979.9 998.8 998.2 997.3 997.6 999.7 1003.2 1002.3 999.9 987.0 979.9 DAY 18 1 4 4 1 30 8 3 3 30 19 26 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 814.9 813.6 812.6 819.2 821.6 819.2 818.2 819.2 822.7 824.6 823.3 821.3 819.2 MAX. QFE PRESSURE IN HPA 822.1 821.2 819.0 824.5 825.5 825.0 823.2 822.6 826.8 830.0 829.2 828.4 830.0 DAY 9 6 16 11 16 12 30 21 14 28 6 3 MIN. QFE PRESSURE IN HPA 808.6 800.0 799.3 816.0 815.5 813.8 815.0 815.9 819.0 818.0 816.0 805.8 799.3 DAY 28 1 4 4 1 30 8 2 17 30 19 26 MEAN QNH PRESSURE IN HPA 997.5 995.9 994.7 1002.5 1005.3 1002.6 1001.4 1002.5 1006.7 1008.9 1007.4 1005.0 1002.5 MAX. QNH PRESSURE IN HPA 1005.9 1004.9 1002.3 1008.8 1010.0 1009.4 1007.2 1006.5 1011.5 1015.2 1014.3 1013.4 1015.2 DAY 9 6 16 11 16 12 30 21 14 28 6 3 MIN. QNH PRESSURE IN HPA 990.0 979.9 979.1 998.8 998.2 996.2 997.6 998.6 1002.3 1001.1 998.8 986.7 979.1 DAY 28 1 4 4 1 30 8 2 17 30 19 26 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** 819.3 821.3 818.8 817.9 819.0 822.6 824.4 824.3 ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 823.8 825.1 824.2 823.4 822.2 826.8 829.4 829.0 ****** ****** DAY ** ** ** 12 16 12 30 21 14 28 5 ** MIN. QFE PRESSURE IN HPA ****** ****** ****** 816.0 816.5 813.0 814.0 815.0 819.0 818.0 818.0 ****** ****** DAY ** ** ** 22 1 30 8 29 3 30 10 ** MEAN QNH PRESSURE IN HPA ****** ****** ****** 1002.7 1005.0 1002.1 1001.0 1002.3 1006.5 1008.7 1008.5 ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1007.9 1009.5 1008.4 1007.5 1006.1 1011.5 1014.5 1014.1 ****** ****** DAY ** ** ** 12 16 12 30 21 14 28 5 ** MIN. QNH PRESSURE IN HPA ****** ****** ****** 998.8 999.4 995.2 996.4 997.6 1002.3 1001.1 1001.1 ****** ****** DAY ** ** ** 22 1 30 8 29 3 30 10 ** MEAN QFF PRESSURE IN HPA ****** ****** ****** 997.7 996.5 990.4 986.5 988.7 995.0 ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1004.7 1002.8 995.0 991.1 994.8 1000.2 ****** ****** ****** ****** DAY ** ** ** 13 4 3 27 5 30 ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** 993.4 989.7 984.6 981.4 984.0 990.1 ****** ****** ****** ****** DAY ** ** ** 30 27 30 15 2 17 ** ** ** 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** 4.6 14.3 17.8 23.5 28.2 26.4 21.0 16.3 ***** 2.1 ***** MINIMUN AIR TEMPERATURE (C) -9.0 -7.5 0.7 9.4 12.6 17.6 22.4 20.8 16.0 11.3 3.0 -1.3 8.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 3 27 14 4 0 0 0 48 DAYS WITH MINIMUM TEMP. <=-4 26 16 3 0 0 0 0 0 0 0 2 8 55 DAYS WITH FREEZING MIN.<= 0 26 21 11 0 0 0 0 0 0 0 4 18 80 TEMPERATURE RECORDS LOWEST(C) -18.8 -19.6 -10.6 0.6 6.8 13.4 20.2 15.5 9.2 3.8 -7.6 -9.6 -19.6 DAY 4 14 30 1 8 1 7 19 22 24 21 5 MAXIMUM AIR TEMPERATURE (C) -2.0 -0.1 6.8 18.4 21.4 27.4 32.8 30.9 24.9 18.9 9.0 4.0 16.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 6 30 26 8 0 0 0 70 DAYS WITH MAXIMUM TEMP. <= 0 20 10 2 0 0 0 0 0 0 0 0 5 37 TEMPERATURE RECORDS HIGHEST(C) 1.6 8.2 14.0 22.0 26.9 32.4 36.5 34.5 31.6 25.6 16.0 10.4 36.5 DAY 19 28 25 17 24 28 21 7 3 5 5 24 DIF. BETWEEN (MAX.-MIN.) (C) 7.0 7.4 6.1 9.0 8.8 9.8 10.4 10.1 8.9 7.6 6.0 5.3 8.0 MEAN DAILY TEMP. (MDT) (C) -5.5 -3.8 3.8 13.9 17.0 22.5 27.6 25.9 20.5 15.1 6.0 1.3 12.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 6.8 55.6 204.0 150.8 41.9 0.2 0.0 0.0 459.4 HEATING DEG. DAYS(BASE 18 0C) 531.8 460.1 441.2 122.6 59.9 0.0 0.0 0.0 20.8 101.6 327.5 516.6 2582.1 DEWPOINT (MEAN C) ***** ***** 0.7 2.3 4.9 5.0 5.6 3.4 1.5 1.9 ***** -3.5 ***** MIXING RATIO (G/KG) ****** ****** 5.06 5.72 6.75 6.90 7.46 6.34 5.29 5.61 ****** 3.68 ****** VAPOUR PRESSURE (HPA) ****** ****** 6.60 7.49 8.82 8.98 9.68 8.27 6.93 7.35 ****** 4.82 ****** SATURATION DEF. (HPA) ****** ****** 2.16 9.21 12.15 20.75 29.16 26.87 18.98 11.78 ****** 2.51 ****** RELATIVE HUMIDITY (MEAN %) *** *** 78 48 45 32 26 26 30 42 *** 69 *** RELATIVE HUMIDITY (MAX. %) 79 71 89 62 55 39 38 38 39 56 78 76 60 RELATIVE HUMIDITY (MIN. %) 66 59 68 36 36 26 17 16 23 32 57 62 42 RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** 57 54 37 36 37 38 *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) 71 62 78 42 42 31 25 23 27 41 65 70 48 RELATIVE HUMIDITY (MEAN% 15UTC) *** *** 77 46 37 27 19 19 26 43 67 69 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 38.9 49.4 146.6 20.0 20.7 0.0 0.0 0.0 0.0 47.6 185.4 96.4 605.0 DAYS WITH PRECIPITATION >=10 1 2 6 0 1 0 0 0 0 1 6 4 21 DAYS WITH PRECIPITATION >= 5 4 3 13 2 1 0 0 0 0 3 9 6 41 DAYS WITH PRECIPITATION >= 1 7 5 17 5 3 0 0 0 0 7 14 8 66 DAYS WITH PRECIPITATION 10 6 18 9 6 0 0 1 1 9 15 11 86 GREATEST DAILY PRECIPITATION 10.0 22.0 24.0 7.0 16.0 0.0 0.0 0.0 0.0 24.0 55.0 28.0 55.0 DAY 12 19 9 30 6 ** ** ** ** 30 30 1 DAY WITH THUNDER STORM 0 0 2 4 4 0 0 0 0 4 1 0 15 DAYS WITH SNOW OR SLEET 7 4 8 1 0 0 0 0 0 0 1 6 27 DAYS WITH DUST 0 0 0 2 4 1 1 8 2 6 0 0 24 WIND DIRECTION (PREVAILING) *** *** *** *** 225 225 360 360 225 225 *** 180 *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** 11.2 11.2 11.6 12.4 11.1 16.2 **** 9.3 **** PREVAILING WIND PERCENT ***** ***** ***** ***** 22.6 19.3 40.6 23.2 22.8 40.3 ***** 19.7 ***** CALMS PERCENT OF WIND ***** ***** ***** ***** 19.4 22.7 14.8 25.2 26.8 17.2 ***** 44.3 ***** NO. OF WIND OBSERVATION 87 79 119 87 155 150 155 155 149 134 114 122 1506 VECTOR WIND DIRECTION (MEAN) *** *** *** *** 254 271 345 310 270 223 *** 208 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** 3.1 3.1 4.4 3.1 2.3 6.8 **** 2.0 **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** 37.8 40.3 48.9 38.3 26.1 59.1 ***** 43.5 ***** WIND SPEED (MEAN KNOTS) **** **** **** **** 8.2 7.7 9.0 8.1 8.8 11.5 **** 4.6 **** FASTEST WIND DIRECTION *** *** *** *** 220 230 360 350 90 230 *** 190 *** FASTEST WIND SPEED (KNOTS) *** *** *** *** 23 21 21 19 27 52 *** 39 *** DAY ** ** ** ** 28 23 26 6 8 18 ** 10 DAYS WITH SKY CLEAR (0-2)/8 13 15 6 11 17 27 28 30 29 17 9 12 214 DAYS WITH P.CLOUDY (3-6)/8 10 8 10 15 13 3 3 1 1 10 12 8 94 DAYS WITH CLOUDY (7-8)/8 7 5 15 4 1 0 0 0 0 4 9 11 56 DAYS WITH VISIBILITY =< 2 KM 7 3 9 1 1 0 0 0 0 0 2 6 29 DURATION OF SUNSHINE HOURS 187.2 194.7 146.1 268.9 328.3 375.1 377.8 366.6 322.6 231.0 159.6 142.3 3100.2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** 818.2 823.1 821.6 818.8 818.1 820.1 821.5 823.2 ****** 819.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** 823.7 828.0 825.2 823.0 822.8 823.2 826.8 828.0 ****** 824.5 ****** DAY-HOUR **-** **-** 1- 6 9- 9 14- 6 26- 9 9- 9 19- 6 24- 6 27- 6 **-** 18- 9 MIN. QFE PRESSURE IN HPA ****** ****** 805.0 817.4 815.5 813.0 813.5 813.0 817.0 815.2 ****** 812.1 ****** DAY-HOUR **-** **-** 29- 6 13- 3 7- 3 9- 3 31-15 1- 3 13- 3 30-12 **-** 4-12 MEAN QNH PRESSURE IN HPA ****** ****** 1001.3 1007.1 1005.4 1002.1 1001.3 1003.6 1005.3 1007.3 ****** 1002.5 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1007.8 1012.9 1009.6 1007.0 1006.8 1007.2 1011.5 1012.9 ****** 1008.8 ****** DAY-HOUR **-** **-** 1- 6 9- 9 14- 6 26- 9 9- 9 19- 6 24- 6 27- 6 **-** 18- 9 MIN. QNH PRESSURE IN HPA ****** ****** 985.8 1000.4 998.2 995.2 995.8 995.2 999.9 997.8 ****** 994.2 ****** DAY-HOUR **-** **-** 29- 6 13- 3 7- 3 9- 3 31-15 1- 3 13- 3 30-12 **-** 4-12 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 ****** ****** ****** 822.6 821.1 817.9 817.6 819.5 821.0 822.8 ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 827.6 824.4 821.0 821.4 822.7 826.0 827.0 ****** ****** ****** DAY ** ** ** 9 14 26 9 19 24 27 ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** 817.4 815.5 813.0 814.2 813.0 817.0 818.6 ****** ****** ****** DAY ** ** ** 13 7 9 6 1 13 31 ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** 1006.6 1004.8 1001.0 1000.6 1002.8 1004.7 1006.8 ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1012.4 1008.7 1004.7 1005.1 1006.7 1010.5 1011.7 ****** ****** ****** DAY ** ** ** 9 14 26 9 19 24 27 ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** 1000.4 998.2 995.2 996.6 995.2 999.9 1001.8 ****** ****** ****** DAY ** ** ** 13 7 9 6 1 13 31 ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** 1000.0 995.5 988.1 984.4 988.0 993.5 ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1008.9 1000.5 993.1 989.7 994.3 1003.1 ****** ****** ****** ****** DAY ** ** ** 2 14 13 9 19 23 ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** 992.9 988.2 982.3 980.4 980.1 987.9 ****** ****** ****** ****** DAY ** ** ** 13 31 9 5 1 6 ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 820.0 822.6 818.4 823.6 822.1 819.1 818.5 820.3 821.9 823.9 822.1 819.6 821.0 MAX. QFE PRESSURE IN HPA 824.2 828.0 823.7 827.2 825.2 822.0 822.4 823.2 826.8 828.0 825.6 824.2 828.0 DAY 30 25 1 9 14 13 9 19 24 27 3 18 MIN. QFE PRESSURE IN HPA 814.0 816.0 805.0 817.8 816.2 814.0 815.0 813.0 817.7 819.0 817.8 815.0 805.0 DAY 3 1 29 13 7 9 5 1 13 30 15 4 MEAN QNH PRESSURE IN HPA 1003.5 1006.5 1001.6 1007.7 1005.9 1002.4 1001.7 1003.8 1005.7 1008.0 1005.9 1003.0 1004.7 MAX. QNH PRESSURE IN HPA 1008.4 1012.9 1007.8 1012.0 1009.6 1005.8 1006.3 1007.2 1011.5 1012.9 1010.1 1008.4 1012.9 DAY 30 25 1 9 14 13 9 19 24 27 3 18 MIN. QNH PRESSURE IN HPA 996.4 998.8 985.8 1000.9 999.0 996.4 997.6 995.2 1000.8 1002.3 1000.9 997.6 985.8 DAY 3 1 29 13 7 9 5 1 13 30 15 4 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 820.2 823.0 818.5 823.8 822.2 819.4 818.8 820.6 822.1 823.6 821.9 819.4 821.1 MAX. QFE PRESSURE IN HPA 824.6 828.0 823.0 828.0 825.0 823.0 822.8 823.0 826.7 827.0 825.6 824.5 828.0 DAY 30 25 1 9 14 26 9 19 24 27 3 18 MIN. QFE PRESSURE IN HPA 814.5 816.2 806.0 818.4 816.9 814.4 815.0 814.0 817.8 816.4 817.0 813.6 806.0 DAY 3 1 29 13 7 9 5 1 13 30 15 4 MEAN QNH PRESSURE IN HPA 1003.7 1007.0 1001.7 1007.9 1006.1 1002.8 1002.0 1004.2 1005.9 1007.7 1005.7 1002.7 1004.8 MAX. QNH PRESSURE IN HPA 1008.9 1012.9 1007.0 1012.9 1009.4 1007.0 1006.8 1007.0 1011.4 1011.7 1010.1 1008.8 1012.9 DAY 30 25 1 9 14 26 9 19 24 27 3 18 MIN. QNH PRESSURE IN HPA 997.0 999.0 987.0 1001.6 999.8 996.9 997.6 996.4 1000.9 999.2 999.9 995.9 987.0 DAY 3 1 29 13 7 9 5 1 13 30 15 4 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 819.6 821.9 818.1 822.9 821.6 819.1 818.2 820.2 821.4 822.9 821.0 818.7 820.5 MAX. QFE PRESSURE IN HPA 823.4 827.1 822.5 827.6 824.0 822.6 822.0 822.7 825.9 826.0 825.0 824.0 827.6 DAY 30 25 6 9 14 3 9 19 24 4 3 18 MIN. QFE PRESSURE IN HPA 814.0 813.2 809.1 818.4 817.2 814.0 814.0 814.2 817.0 815.2 816.0 812.1 809.1 DAY 2 13 28 13 6 10 5 1 13 30 19 4 MEAN QNH PRESSURE IN HPA 1003.0 1005.7 1001.2 1006.9 1005.4 1002.5 1001.3 1003.7 1005.2 1006.8 1004.7 1002.0 1004.0 MAX. QNH PRESSURE IN HPA 1007.5 1011.8 1006.4 1012.4 1008.2 1006.5 1005.8 1006.7 1010.4 1010.5 1009.4 1008.2 1012.4 DAY 30 25 6 9 14 3 9 19 24 4 3 18 MIN. QNH PRESSURE IN HPA 996.4 995.5 990.6 1001.6 1000.2 996.4 996.4 996.6 999.9 997.8 998.8 994.2 990.6 DAY 2 13 28 13 6 10 5 1 13 30 19 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 817.8 822.7 821.1 818.6 817.6 819.8 821.3 823.0 821.0 819.0 ****** MAX. QFE PRESSURE IN HPA ****** ****** 822.0 826.8 824.0 822.0 821.8 822.3 825.4 826.8 825.0 824.5 ****** DAY ** ** 2 9 14 3 9 26 23 8 3 18 MIN. QFE PRESSURE IN HPA ****** ****** 808.0 819.2 816.0 813.6 813.5 814.0 817.0 817.0 816.0 812.1 ****** DAY ** ** 29 12 6 9 31 1 13 30 19 4 MEAN QNH PRESSURE IN HPA ****** ****** 1000.9 1006.7 1004.7 1001.8 1000.7 1003.3 1005.0 1006.9 1004.6 1002.3 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1005.8 1011.5 1008.2 1005.8 1005.6 1006.2 1009.8 1011.5 1009.4 1008.8 ****** DAY ** ** 2 9 14 3 9 26 23 8 3 18 MIN. QNH PRESSURE IN HPA ****** ****** 989.3 1002.5 998.8 995.9 995.8 996.4 999.9 999.9 998.8 994.2 ****** DAY ** ** 29 12 6 9 31 1 13 30 19 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** 999.9 995.4 988.7 984.6 988.7 994.0 ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1008.4 1001.1 993.8 990.5 993.7 1002.9 ****** ****** ****** ****** DAY ** ** ** 1 8 1 9 19 22 ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** 993.7 987.5 984.0 980.2 982.1 988.4 ****** ****** ****** ****** DAY ** ** ** 23 30 8 31 1 6 ** ** ** 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** 9.1 16.4 22.9 26.4 25.1 22.8 14.2 10.2 2.2 ***** MINIMUN AIR TEMPERATURE (C) -6.1 -5.4 0.0 5.2 11.0 17.3 21.1 19.1 17.5 10.0 6.0 -0.2 8.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 19 6 0 0 0 0 27 DAYS WITH MINIMUM TEMP. <=-4 21 21 4 0 0 0 0 0 0 0 0 8 54 DAYS WITH FREEZING MIN.<= 0 29 26 11 3 0 0 0 0 0 0 5 14 88 TEMPERATURE RECORDS LOWEST(C) -11.6 -10.0 -11.2 -1.6 3.8 13.3 15.4 15.0 15.0 2.6 -1.0 -11.4 -11.6 DAY 10 2 17 3 3 19 5 2 21 15 13 27 MAXIMUM AIR TEMPERATURE (C) -1.8 -0.3 7.3 12.4 20.3 26.7 30.7 30.1 27.4 18.1 13.8 4.7 15.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 2 20 15 0 0 0 0 37 DAYS WITH MAXIMUM TEMP. <= 0 23 18 1 0 0 0 0 0 0 0 0 11 53 TEMPERATURE RECORDS HIGHEST(C) 3.0 6.0 13.4 23.0 26.8 30.2 35.0 34.8 29.4 23.5 19.8 13.8 35.0 DAY 13 27 23 27 31 26 17 14 9 11 7 2 DIF. BETWEEN (MAX.-MIN.) (C) 4.3 5.1 7.3 7.2 9.3 9.4 9.6 11.0 9.9 8.1 7.8 4.9 7.8 MEAN DAILY TEMP. (MDT) (C) -3.9 -2.9 3.7 8.8 15.7 22.0 25.9 24.6 22.4 14.1 9.9 2.2 11.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 1.1 44.8 153.6 111.8 43.0 0.0 0.0 0.0 354.4 HEATING DEG. DAYS(BASE 18 0C) 636.4 502.5 389.4 275.6 94.9 0.3 0.0 0.0 0.0 124.7 243.8 489.2 2756.8 DEWPOINT (MEAN C) ***** ***** ***** 0.2 2.2 3.5 6.4 3.7 -3.0 1.9 -2.1 -4.9 ***** MIXING RATIO (G/KG) ****** ****** ****** 4.84 5.78 6.23 7.61 6.37 3.88 5.45 4.17 3.49 ****** VAPOUR PRESSURE (HPA) ****** ****** ****** 6.30 7.53 8.11 9.90 8.31 5.09 7.17 5.51 4.59 ****** SATURATION DEF. (HPA) ****** ****** ****** 5.89 11.95 20.39 25.39 24.46 23.16 9.55 7.32 3.15 ****** RELATIVE HUMIDITY (MEAN %) *** *** *** 58 42 30 30 28 19 48 45 64 *** RELATIVE HUMIDITY (MAX. %) 82 86 75 69 52 39 40 39 27 59 57 74 58 RELATIVE HUMIDITY (MIN. %) 70 78 53 47 33 23 22 18 12 37 34 53 40 RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** 66 49 38 38 37 26 55 53 68 *** RELATIVE HUMIDITY (MEAN% 09UTC) 74 81 58 53 39 28 29 27 16 44 42 61 46 RELATIVE HUMIDITY (MEAN% 15UTC) 78 80 65 54 36 24 23 19 16 46 43 64 46 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 132.1 23.6 95.2 121.4 14.0 2.6 0.0 0.0 0.0 19.0 15.2 81.4 504.5 DAYS WITH PRECIPITATION >=10 4 0 3 4 0 0 0 0 0 0 1 4 16 DAYS WITH PRECIPITATION >= 5 5 0 4 5 2 0 0 0 0 2 1 5 24 DAYS WITH PRECIPITATION >= 1 10 7 12 7 3 1 0 0 0 4 3 7 54 DAYS WITH PRECIPITATION 14 13 15 11 4 2 0 0 0 7 4 11 81 GREATEST DAILY PRECIPITATION 36.0 4.4 28.0 33.0 6.0 2.0 0.0 0.0 0.0 7.0 11.0 20.0 36.0 DAY 4 18 11 13 11 15 ** ** ** 29 12 24 DAY WITH THUNDER STORM 0 0 1 0 1 1 0 0 0 2 0 0 5 DAYS WITH SNOW OR SLEET 10 12 4 2 0 0 0 0 0 0 0 7 35 DAYS WITH DUST 1 0 0 0 0 2 0 0 0 0 0 0 3 WIND DIRECTION (PREVAILING) *** *** *** 270 360 360 360 360 270 225 180 225 *** PREVAILING WIND SPEED(KNOTS) **** **** **** 10.9 7.7 7.5 7.5 9.4 6.7 9.4 12.2 13.7 **** PREVAILING WIND PERCENT ***** ***** ***** 23.8 28.4 24.8 42.6 25.8 16.0 11.6 16.7 20.0 ***** CALMS PERCENT OF WIND ***** ***** ***** 28.6 20.0 23.5 21.9 28.4 43.3 46.5 49.3 22.6 ***** NO. OF WIND OBSERVATION 111 108 116 147 155 149 155 155 150 155 150 155 1706 VECTOR WIND DIRECTION (MEAN) *** *** *** 224 242 269 354 313 269 245 206 253 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** 5.5 1.1 2.3 3.5 2.9 1.8 2.0 3.1 3.8 **** WIND STEADINESES (MEAN %) ***** ***** ***** 63.2 16.2 38.3 67.3 48.3 42.9 43.5 62.0 44.2 ***** WIND SPEED (MEAN KNOTS) **** **** **** 8.7 6.8 6.0 5.2 6.0 4.2 4.6 5.0 8.6 **** FASTEST WIND DIRECTION *** *** *** 180 180 220 330 270 340 320 200 210 *** FASTEST WIND SPEED (KNOTS) *** *** *** 49 25 25 16 23 17 23 31 27 *** DAY ** ** ** 2 2 3 12 26 2 15 9 6 DAYS WITH SKY CLEAR (0-2)/8 8 4 12 7 22 30 29 31 30 17 19 12 221 DAYS WITH P.CLOUDY (3-6)/8 12 9 13 17 6 0 2 0 0 10 7 11 87 DAYS WITH CLOUDY (7-8)/8 11 15 6 6 3 0 0 0 0 4 4 8 57 DAYS WITH VISIBILITY =< 2 KM 5 7 4 4 0 0 0 0 0 0 0 2 22 DURATION OF SUNSHINE HOURS 123.5 101.5 199.4 227.5 315.2 380.3 309.4 ****** 260.8 225.6 ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** 817.0 818.5 818.0 819.9 820.6 822.2 825.6 826.9 822.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 823.1 823.1 822.3 824.8 823.7 826.5 830.5 833.8 828.8 ****** DAY-HOUR **-** **-** **-** 25- 6 16- 6 4-12 15- 9 4- 6 23- 6 16- 3 23- 6 7- 9 MIN. QFE PRESSURE IN HPA ****** ****** ****** 805.0 810.0 813.0 815.8 817.9 818.0 818.0 820.7 810.4 ****** DAY-HOUR **-** **-** **-** 2- 3 12-15 15- 3 5-15 8- 3 4- 3 14- 3 9-12 24-12 MEAN QNH PRESSURE IN HPA ****** ****** ****** 1000.0 1001.7 1001.2 1003.4 1004.2 1006.0 1010.0 1011.6 1006.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1007.1 1007.1 1006.2 1009.1 1007.8 1011.1 1015.8 1019.7 1013.8 ****** DAY-HOUR **-** **-** **-** 25- 6 16- 6 4-12 15- 9 4- 6 23- 6 16- 3 23- 6 7- 9 MIN. QNH PRESSURE IN HPA ****** ****** ****** 985.8 991.7 995.2 998.5 1001.0 1001.1 1001.1 1004.3 992.2 ****** DAY-HOUR **-** **-** **-** 2- 3 12-15 15- 3 5-15 8- 3 4- 3 14- 3 9-12 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 ****** ****** ****** 816.4 817.8 817.4 819.6 820.2 821.4 825.0 826.4 822.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 822.1 822.0 820.9 823.2 822.8 825.0 830.5 833.0 827.4 ****** DAY ** ** ** 25 16 5 16 29 23 16 23 7 MIN. QFE PRESSURE IN HPA ****** ****** ****** 805.0 810.0 813.0 816.6 817.9 818.0 818.0 821.0 812.0 ****** DAY ** ** ** 2 13 15 2 8 4 14 9 25 MEAN QNH PRESSURE IN HPA ****** ****** ****** 999.2 1000.9 1000.4 1003.0 1003.7 1005.1 1009.4 1011.1 1006.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1005.9 1005.8 1004.5 1007.2 1006.8 1009.4 1015.8 1018.8 1012.2 ****** DAY ** ** ** 25 16 5 16 29 23 16 23 7 MIN. QNH PRESSURE IN HPA ****** ****** ****** 985.8 991.7 995.2 999.5 1001.0 1001.1 1001.1 1004.7 994.0 ****** DAY ** ** ** 2 13 15 2 8 4 14 9 25 MEAN QFF PRESSURE IN HPA ****** ****** ****** 995.9 992.6 987.7 988.0 989.7 993.1 1002.7 1007.3 1007.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1002.4 998.1 992.7 992.2 993.6 998.3 1015.0 1017.8 1021.0 ****** DAY ** ** ** 8 16 5 8 29 23 16 14 28 MIN. QFF PRESSURE IN HPA ****** ****** ****** 983.9 984.6 981.2 984.5 985.0 987.8 992.6 997.6 999.8 ****** DAY ** ** ** 2 2 26 29 15 5 14 9 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 818.7 816.5 819.9 817.3 818.9 818.5 820.4 821.2 822.5 826.2 827.4 823.4 820.9 MAX. QFE PRESSURE IN HPA 826.1 824.0 827.2 823.1 823.1 822.0 824.0 823.7 826.5 830.5 833.8 828.0 833.8 DAY 26 8 9 25 16 4 15 4 23 16 23 7 MIN. QFE PRESSURE IN HPA 811.8 807.0 815.1 808.5 811.0 813.7 817.2 818.7 818.9 819.5 821.0 813.8 807.0 DAY 1 19 2 2 13 15 5 8 4 14 9 25 MEAN QNH PRESSURE IN HPA 1002.0 999.4 1003.4 1000.3 1002.2 1001.7 1003.9 1004.8 1006.4 1010.8 1012.2 1007.5 1004.5 MAX. QNH PRESSURE IN HPA 1010.7 1008.2 1012.0 1007.1 1007.1 1005.8 1008.2 1007.8 1011.1 1015.8 1019.7 1012.9 1019.7 DAY 26 8 9 25 16 4 15 4 23 16 23 7 MIN. QNH PRESSURE IN HPA 993.8 988.2 997.7 989.9 992.9 996.1 1000.2 1001.9 1002.2 1002.9 1004.7 996.2 988.2 DAY 1 19 2 2 13 15 5 8 4 14 9 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 818.3 816.6 820.5 817.5 819.0 818.6 820.5 821.1 822.8 826.1 827.4 823.4 821.0 MAX. QFE PRESSURE IN HPA 826.1 824.0 828.6 823.0 822.5 822.0 824.8 823.5 826.2 830.0 833.2 828.8 833.2 DAY 26 8 9 24 16 4 15 4 23 15 23 7 MIN. QFE PRESSURE IN HPA 811.0 805.9 815.8 808.8 811.1 813.7 816.8 818.7 819.9 819.9 821.6 814.2 805.9 DAY 4 15 11 1 12 15 5 8 4 14 9 24 MEAN QNH PRESSURE IN HPA 1001.5 999.5 1004.1 1000.5 1002.3 1001.8 1004.0 1004.8 1006.8 1010.7 1012.1 1007.5 1004.6 MAX. QNH PRESSURE IN HPA 1010.7 1008.2 1013.6 1007.0 1006.4 1005.8 1009.1 1007.6 1010.8 1015.2 1019.0 1013.8 1019.0 DAY 26 8 9 24 16 4 15 4 23 15 23 7 MIN. QNH PRESSURE IN HPA 992.9 986.9 998.5 990.3 993.0 996.1 999.7 1001.9 1003.4 1003.4 1005.4 996.6 986.9 DAY 4 15 11 1 12 15 5 8 4 14 9 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 817.5 815.6 819.5 817.1 818.5 818.0 819.8 820.4 822.2 825.3 826.6 822.6 820.3 MAX. QFE PRESSURE IN HPA 825.0 822.0 828.0 822.0 821.3 822.3 824.0 823.0 825.5 830.0 832.6 827.8 832.6 DAY 26 7 9 24 15 4 15 16 27 15 22 7 MIN. QFE PRESSURE IN HPA 809.4 805.0 815.4 808.0 811.1 813.3 816.2 818.2 819.0 819.0 820.7 810.4 805.0 DAY 4 15 11 1 12 15 5 8 4 14 9 24 MEAN QNH PRESSURE IN HPA 1000.6 998.3 1002.9 1000.1 1001.7 1001.1 1003.2 1004.0 1006.0 1009.7 1011.2 1006.5 1003.8 MAX. QNH PRESSURE IN HPA 1009.4 1005.8 1012.9 1005.8 1005.0 1006.2 1008.2 1007.0 1010.0 1015.2 1018.3 1012.7 1018.3 DAY 26 7 9 24 15 4 15 16 27 15 22 7 MIN. QNH PRESSURE IN HPA 991.0 985.8 998.1 989.3 993.0 995.6 999.0 1001.4 1002.3 1002.3 1004.3 992.2 985.8 DAY 4 15 11 1 12 15 5 8 4 14 9 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 817.9 816.1 819.6 817.0 818.1 817.7 819.4 820.4 822.1 825.3 826.8 822.8 820.3 MAX. QFE PRESSURE IN HPA 825.0 822.3 827.0 822.0 821.0 822.3 823.8 823.0 825.5 830.0 833.0 827.4 833.0 DAY 26 7 9 24 27 4 15 16 27 15 22 7 MIN. QFE PRESSURE IN HPA 810.1 807.0 816.0 807.8 810.0 813.3 815.8 818.0 818.7 820.0 821.0 811.2 807.0 DAY 4 15 11 1 12 15 5 8 4 13 9 24 MEAN QNH PRESSURE IN HPA 1001.0 998.9 1003.1 999.9 1001.3 1000.8 1002.7 1003.9 1005.9 1009.7 1011.5 1006.8 1003.8 MAX. QNH PRESSURE IN HPA 1009.4 1006.2 1011.7 1005.8 1004.7 1006.2 1007.9 1007.0 1010.0 1015.2 1018.8 1012.2 1018.8 DAY 26 7 9 24 27 4 15 16 27 15 22 7 MIN. QNH PRESSURE IN HPA 991.8 988.2 998.8 989.1 991.7 995.6 998.5 1001.1 1001.9 1003.5 1004.7 993.1 988.2 DAY 4 15 11 1 12 15 5 8 4 13 9 24 MEAN QFF PRESSURE IN HPA ****** ****** ****** 996.5 992.8 988.1 987.8 990.0 994.1 1003.1 1007.8 1008.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1004.9 997.1 994.3 992.1 993.4 999.0 1014.6 1017.9 1020.3 ****** DAY ** ** ** 4 7 4 15 29 27 15 13 27 MIN. QFF PRESSURE IN HPA ****** ****** ****** 985.6 984.9 982.9 985.0 984.9 988.6 994.5 998.8 997.4 ****** DAY ** ** ** 1 12 13 29 14 4 13 8 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** 4.2 11.2 15.1 22.3 25.8 26.4 21.7 14.7 ***** ***** ***** MINIMUN AIR TEMPERATURE (C) -4.4 -5.4 1.1 7.2 10.3 16.9 20.2 16.2 16.5 10.8 4.9 -3.8 7.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 12 4 1 0 0 0 19 DAYS WITH MINIMUM TEMP. <=-4 17 16 5 0 0 0 0 0 0 0 0 14 52 DAYS WITH FREEZING MIN.<= 0 28 24 14 1 0 0 0 0 0 0 0 29 96 TEMPERATURE RECORDS LOWEST(C) -9.4 -11.0 -9.0 0.0 3.4 12.7 16.0 9.6 10.6 7.4 1.6 -9.0 -11.0 DAY 25 7 11 11 24 5 12 13 27 16 24 15 MAXIMUM AIR TEMPERATURE (C) -0.3 -0.5 6.5 14.8 18.6 26.6 30.3 31.2 25.9 17.5 11.0 1.1 15.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 6 19 21 2 0 0 0 48 DAYS WITH MAXIMUM TEMP. <= 0 17 13 4 0 0 0 0 0 0 0 0 11 45 TEMPERATURE RECORDS HIGHEST(C) 6.6 8.0 19.2 23.4 23.2 32.0 36.0 37.2 31.2 22.6 16.2 9.2 37.2 DAY 7 26 30 25 27 25 31 1 1 8 2 9 DIF. BETWEEN (MAX.-MIN.) (C) 4.1 4.9 5.4 7.6 8.3 9.7 10.1 15.0 9.4 6.7 6.1 4.9 7.6 MEAN DAILY TEMP. (MDT) (C) -2.3 -2.9 3.8 11.0 14.4 21.8 25.2 23.7 21.2 14.2 7.9 -1.3 11.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.0 47.7 131.7 91.7 33.6 0.0 0.0 0.0 304.8 HEATING DEG. DAYS(BASE 18 0C) 610.3 526.9 424.2 211.7 111.7 0.5 0.0 0.6 3.2 119.9 301.6 561.2 2871.9 DEWPOINT (MEAN C) ***** ***** -1.9 1.1 1.4 6.0 8.8 8.7 6.3 6.8 ***** ***** ***** MIXING RATIO (G/KG) ****** ****** 4.20 5.19 5.30 7.44 8.84 8.79 7.45 7.62 ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** 5.49 6.79 6.92 9.67 11.47 11.41 9.74 9.98 ****** ****** ****** SATURATION DEF. (HPA) ****** ****** 3.33 7.14 10.62 18.07 22.48 24.01 16.86 7.15 ****** ****** ****** RELATIVE HUMIDITY (MEAN %) *** *** 68 54 42 36 35 35 39 62 *** *** *** RELATIVE HUMIDITY (MAX. %) 76 70 79 70 53 46 44 44 50 72 79 93 65 RELATIVE HUMIDITY (MIN. %) 66 58 59 40 32 27 27 26 29 53 57 85 47 RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** 64 50 44 42 41 46 64 *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) 70 63 68 50 40 37 36 35 36 62 65 88 54 RELATIVE HUMIDITY (MEAN% 15UTC) 69 62 66 49 34 28 27 28 34 60 *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 62.7 143.2 126.0 137.9 13.3 0.8 0.0 0.0 0.0 64.8 91.1 323.2 963.0 DAYS WITH PRECIPITATION >=10 2 4 3 5 0 0 0 0 0 3 1 7 25 DAYS WITH PRECIPITATION >= 5 6 5 8 9 1 0 0 0 0 4 2 9 44 DAYS WITH PRECIPITATION >= 1 9 8 10 12 4 0 0 0 0 6 5 12 66 DAYS WITH PRECIPITATION 14 9 13 14 4 1 0 0 0 11 6 15 87 GREATEST DAILY PRECIPITATION 14.0 57.0 43.0 34.0 7.0 0.8 0.0 0.0 0.0 20.0 79.0 98.0 98.0 DAY 2 26 23 4 16 12 ** ** ** 15 4 9 DAY WITH THUNDER STORM 0 0 0 6 1 1 0 0 0 2 0 1 11 DAYS WITH SNOW OR SLEET 11 6 9 2 0 0 0 0 0 0 0 8 36 DAYS WITH DUST 0 0 1 0 5 0 0 1 0 0 0 0 7 WIND DIRECTION (PREVAILING) *** *** 360 225 225 360 360 360 360 180 *** *** *** PREVAILING WIND SPEED(KNOTS) **** **** 11.4 11.7 11.4 10.4 10.5 14.1 10.3 7.6 **** **** **** PREVAILING WIND PERCENT ***** ***** 17.4 22.8 31.4 28.0 42.2 32.9 21.3 18.2 ***** ***** ***** CALMS PERCENT OF WIND ***** ***** 42.1 34.2 17.6 26.0 16.2 24.5 28.7 38.0 ***** ***** ***** NO. OF WIND OBSERVATION 119 102 121 149 153 150 154 155 150 137 101 89 1580 VECTOR WIND DIRECTION (MEAN) *** *** 49 211 237 327 343 315 295 260 *** *** *** VECTOR WIND MAGNITUDE(KNOTS) **** **** 0.3 4.8 4.1 2.8 5.5 4.5 2.3 0.7 **** **** **** WIND STEADINESES (MEAN %) ***** ***** 5.4 62.3 49.4 43.1 66.3 46.4 38.3 14.9 ***** ***** ***** WIND SPEED (MEAN KNOTS) **** **** 5.6 7.7 8.3 6.5 8.3 9.7 6.0 4.7 **** **** **** FASTEST WIND DIRECTION *** *** 20 180 200 240 360 270 230 10 *** *** *** FASTEST WIND SPEED (KNOTS) *** *** 21 43 27 23 21 49 23 23 *** *** *** DAY ** ** 25 16 21 6 21 6 21 1 ** ** DAYS WITH SKY CLEAR (0-2)/8 6 8 8 11 20 28 31 29 27 15 17 9 209 DAYS WITH P.CLOUDY (3-6)/8 11 7 7 13 8 2 0 2 3 12 6 8 79 DAYS WITH CLOUDY (7-8)/8 14 13 16 6 3 0 0 0 0 4 7 13 76 DAYS WITH VISIBILITY =< 2 KM 11 10 9 3 3 0 0 2 0 2 1 11 52 DURATION OF SUNSHINE HOURS 120.7 143.8 130.7 204.5 314.1 345.2 374.9 324.8 322.4 212.7 208.1 111.4 2813.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** 819.0 821.5 819.6 818.6 818.2 819.4 822.8 824.6 ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** 826.4 827.0 824.0 823.2 821.6 822.8 826.4 828.0 ****** ****** ****** DAY-HOUR **-** **-** 29- 9 20- 9 8- 9 17- 9 3- 9 8- 9 15- 6 12- 6 **-** **-** MIN. QFE PRESSURE IN HPA ****** ****** 806.2 814.0 812.0 812.6 813.0 815.9 818.0 820.0 ****** ****** ****** DAY-HOUR **-** **-** 6- 6 4- 6 16-15 11-15 13-15 11-15 19- 3 15- 3 **-** **-** MEAN QNH PRESSURE IN HPA ****** ****** 1002.3 1005.3 1003.0 1001.8 1001.3 1002.8 1006.8 1008.9 ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** 1011.0 1011.7 1008.2 1007.2 1005.4 1006.8 1011.0 1012.9 ****** ****** ****** DAY-HOUR **-** **-** 29- 9 20- 9 8- 9 17- 9 3- 9 8- 9 15- 6 12- 6 **-** **-** MIN. QNH PRESSURE IN HPA ****** ****** 987.2 996.4 994.0 994.8 995.2 998.6 1001.1 1003.5 ****** ****** ****** DAY-HOUR **-** **-** 6- 6 4- 6 16-15 11-15 13-15 11-15 19- 3 15- 3 **-** **-** 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 ****** ****** ****** 820.8 818.9 818.1 817.6 818.9 822.2 823.7 ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 825.1 823.0 822.2 820.5 821.4 825.2 827.8 ****** ****** ****** DAY ** ** ** 20 25 17 21 9 15 13 ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** 815.0 814.0 813.0 813.3 816.2 818.0 820.0 ****** ****** ****** DAY ** ** ** 9 23 11 15 12 19 15 ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** 1004.4 1002.2 1001.2 1000.7 1002.2 1006.0 1007.9 ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1009.5 1007.0 1006.1 1004.1 1005.1 1009.6 1012.7 ****** ****** ****** DAY ** ** ** 20 25 17 21 9 15 13 ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** 997.6 996.4 995.2 995.6 999.0 1001.1 1003.5 ****** ****** ****** DAY ** ** ** 9 23 11 15 12 19 15 ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** 999.4 994.7 988.9 985.9 987.0 994.2 999.4 ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1008.8 1002.2 996.9 990.4 990.8 1000.1 1003.6 ****** ****** ****** DAY ** ** ** 14 25 1 12 13 27 13 ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** 991.0 989.1 982.7 982.1 982.3 987.9 995.4 ****** ****** ****** DAY ** ** ** 9 27 27 14 1 3 15 ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 821.2 819.9 818.8 821.7 820.0 819.0 818.5 819.8 823.3 825.2 824.4 819.8 821.0 MAX. QFE PRESSURE IN HPA 827.3 826.0 825.5 826.8 823.9 823.0 821.2 822.0 826.4 828.0 828.8 827.0 828.8 DAY 12 15 29 20 25 17 3 8 15 12 24 17 MIN. QFE PRESSURE IN HPA 813.8 814.0 806.2 814.0 815.3 813.7 813.9 817.2 819.0 821.6 818.4 812.2 806.2 DAY 25 8 6 4 23 11 15 12 19 15 4 4 MEAN QNH PRESSURE IN HPA 1004.8 1003.3 1002.0 1005.5 1003.5 1002.2 1001.7 1003.2 1007.4 1009.6 1008.6 1003.2 1004.6 MAX. QNH PRESSURE IN HPA 1012.1 1010.5 1010.0 1011.5 1008.1 1007.0 1004.9 1005.8 1011.0 1012.9 1013.8 1011.7 1013.8 DAY 12 15 29 20 25 17 3 8 15 12 24 17 MIN. QNH PRESSURE IN HPA 996.2 996.4 987.2 996.4 997.9 996.1 996.3 1000.2 1002.3 1005.4 1001.6 994.3 987.2 DAY 25 8 6 4 23 11 15 12 19 15 4 4 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 821.6 820.4 819.4 822.1 820.2 819.3 818.9 820.0 823.4 825.1 824.0 820.1 821.2 MAX. QFE PRESSURE IN HPA 828.0 827.0 826.4 827.0 824.0 823.2 821.6 822.8 826.4 828.0 828.8 826.0 828.8 DAY 12 15 29 20 8 17 3 8 15 12 24 6 MIN. QFE PRESSURE IN HPA 814.5 814.3 811.0 814.8 815.5 814.0 814.7 817.2 819.4 822.0 817.6 811.8 811.0 DAY 25 8 9 4 22 11 14 12 19 15 4 4 MEAN QNH PRESSURE IN HPA 1005.4 1004.0 1002.8 1006.0 1003.7 1002.6 1002.2 1003.5 1007.5 1009.5 1008.2 1003.6 1004.9 MAX. QNH PRESSURE IN HPA 1012.9 1011.7 1011.0 1011.7 1008.2 1007.2 1005.4 1006.8 1011.0 1012.9 1013.8 1010.5 1013.8 DAY 12 15 29 20 8 17 3 8 15 12 24 6 MIN. QNH PRESSURE IN HPA 997.0 996.8 992.9 997.3 998.2 996.4 997.2 1000.2 1002.8 1005.8 1000.6 993.8 992.9 DAY 25 8 9 4 22 11 14 12 19 15 4 4 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 820.8 819.6 818.9 821.6 819.7 818.7 818.2 819.4 822.7 824.4 823.4 819.3 820.6 MAX. QFE PRESSURE IN HPA 827.6 827.0 825.2 826.0 823.2 823.0 821.0 822.0 825.2 827.5 827.6 827.0 827.6 DAY 12 15 29 20 8 1 20 8 14 20 24 6 MIN. QFE PRESSURE IN HPA 813.8 813.3 808.1 814.2 814.0 813.0 813.8 816.6 819.0 821.6 817.2 810.4 808.1 DAY 25 20 9 4 16 11 13 11 3 15 30 4 MEAN QNH PRESSURE IN HPA 1004.4 1003.0 1002.2 1005.4 1003.1 1001.9 1001.4 1002.8 1006.6 1008.7 1007.4 1002.7 1004.1 MAX. QNH PRESSURE IN HPA 1012.4 1011.7 1009.6 1010.5 1007.2 1007.0 1004.7 1005.8 1009.6 1012.3 1012.4 1011.7 1012.4 DAY 12 15 29 20 8 1 20 8 14 20 24 6 MIN. QNH PRESSURE IN HPA 996.2 995.6 989.5 996.6 996.4 995.2 996.2 999.5 1002.3 1005.4 1000.2 992.2 989.5 DAY 25 20 9 4 16 11 13 11 3 15 30 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 821.0 819.6 819.1 821.5 819.3 818.0 817.7 819.0 822.7 824.4 ****** ****** ****** MAX. QFE PRESSURE IN HPA 828.0 827.0 825.0 825.7 823.4 822.4 820.4 822.0 825.4 828.0 ****** ****** ****** DAY 12 15 29 20 8 1 20 8 15 20 ** ** MIN. QFE PRESSURE IN HPA 813.0 813.0 807.8 814.9 812.0 812.6 813.0 815.9 819.0 821.2 ****** ****** ****** DAY 25 20 9 4 16 11 13 11 3 25 ** ** MEAN QNH PRESSURE IN HPA 1004.7 1003.0 1002.4 1005.2 1002.6 1001.1 1000.8 1002.3 1006.6 1008.6 ****** ****** ****** MAX. QNH PRESSURE IN HPA 1012.9 1011.7 1009.4 1010.2 1007.5 1006.3 1003.9 1005.8 1009.8 1012.9 ****** ****** ****** DAY 12 15 29 20 8 1 20 8 15 20 ** ** MIN. QNH PRESSURE IN HPA 995.2 995.2 989.1 997.5 994.0 994.8 995.2 998.6 1002.3 1004.9 ****** ****** ****** DAY 25 20 9 4 16 11 13 11 3 25 ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** 1000.2 995.0 988.7 985.9 987.2 994.8 999.7 ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1008.2 1003.5 996.9 991.0 992.5 1000.0 1003.0 ****** ****** ****** DAY ** ** ** 13 24 1 11 31 26 12 ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** 993.6 985.1 981.2 980.9 982.1 988.3 996.5 ****** ****** ****** DAY ** ** ** 9 16 26 13 5 3 14 ** ** 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** 9.8 ***** ***** ***** ***** ***** ***** ***** ***** MINIMUN AIR TEMPERATURE (C) -9.6 -8.1 -4.7 3.9 6.4 14.7 19.3 17.3 15.1 10.8 3.4 -3.2 5.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 9 4 0 0 0 0 13 DAYS WITH MINIMUM TEMP. <=-4 27 23 16 0 0 0 0 0 0 0 5 13 84 DAYS WITH FREEZING MIN.<= 0 31 27 26 8 1 0 0 0 0 0 7 23 123 TEMPERATURE RECORDS LOWEST(C) -25.0 -18.4 -16.6 -2.2 -1.8 8.6 13.0 11.4 7.0 5.4 -9.2 -12.8 -25.0 DAY 27 10 10 2 4 2 12 12 29 16 26 28 MAXIMUM AIR TEMPERATURE (C) -3.9 -3.3 0.9 11.0 14.1 23.1 29.2 27.3 24.3 19.8 9.7 0.9 12.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 0 12 7 0 0 0 0 19 DAYS WITH MAXIMUM TEMP. <= 0 25 22 16 0 0 0 0 0 0 0 3 11 77 TEMPERATURE RECORDS HIGHEST(C) 1.8 4.2 7.8 16.2 25.2 28.0 31.8 31.2 29.8 24.6 16.4 7.0 31.8 DAY 11 18 30 13 29 29 26 17 10 21 5 11 DIF. BETWEEN (MAX.-MIN.) (C) 5.7 4.8 5.6 7.1 7.7 8.4 9.9 10.0 9.2 9.0 6.3 4.1 7.4 MEAN DAILY TEMP. (MDT) (C) -6.8 -5.7 -1.9 7.5 10.2 18.9 24.2 22.3 19.7 15.3 6.6 -1.1 9.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.0 8.3 104.1 58.2 20.4 0.0 0.0 0.0 191.0 HEATING DEG. DAYS(BASE 18 0C) 717.8 616.4 616.8 315.5 223.6 18.9 0.0 2.4 25.4 88.1 331.6 533.6 3490.2 DEWPOINT (MEAN C) ***** ***** ***** ***** 4.5 ***** ***** ***** ***** ***** ***** ***** ***** MIXING RATIO (G/KG) ****** ****** ****** ****** 6.61 ****** ****** ****** ****** ****** ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** 8.63 ****** ****** ****** ****** ****** ****** ****** ****** SATURATION DEF. (HPA) ****** ****** ****** ****** 4.07 ****** ****** ****** ****** ****** ****** ****** ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** 73 *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MAX. %) 83 91 84 73 83 57 50 63 50 59 78 88 72 RELATIVE HUMIDITY (MIN. %) 78 84 77 60 57 40 36 45 37 43 61 79 58 RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** 80 *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) 81 87 81 66 75 49 45 56 44 53 70 85 66 RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** 65 *** *** *** *** *** *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 88.7 71.6 19.3 69.8 195.2 20.0 0.0 0.0 2.4 0.0 171.6 184.0 822.6 DAYS WITH PRECIPITATION >=10 2 2 1 3 8 1 0 0 0 0 6 6 29 DAYS WITH PRECIPITATION >= 5 7 6 1 5 8 1 0 0 0 0 6 6 40 DAYS WITH PRECIPITATION >= 1 13 12 4 8 14 2 0 0 2 0 9 9 73 DAYS WITH PRECIPITATION 15 13 5 9 15 2 0 0 2 0 10 11 82 GREATEST DAILY PRECIPITATION 18.0 17.0 12.0 26.0 43.0 19.0 0.0 0.0 1.4 0.0 45.0 48.0 48.0 DAY 15 1 23 22 9 2 ** ** 13 ** 7 15 DAY WITH THUNDER STORM 0 1 0 0 3 0 0 0 2 0 0 0 6 DAYS WITH SNOW OR SLEET 12 15 4 2 0 0 0 0 0 0 2 8 43 DAYS WITH DUST 0 0 0 1 1 0 0 0 0 3 1 0 6 WIND DIRECTION (PREVAILING) *** *** *** *** 360 *** *** *** *** *** *** *** *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** 11.9 **** **** **** **** **** **** **** **** PREVAILING WIND PERCENT ***** ***** ***** ***** 31.6 ***** ***** ***** ***** ***** ***** ***** ***** CALMS PERCENT OF WIND ***** ***** ***** ***** 33.1 ***** ***** ***** ***** ***** ***** ***** ***** NO. OF WIND OBSERVATION 92 81 93 90 133 87 93 93 90 93 84 89 1118 VECTOR WIND DIRECTION (MEAN) *** *** *** *** 257 *** *** *** *** *** *** *** *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** 3.6 **** **** **** **** **** **** **** **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** 33.6 ***** ***** ***** ***** ***** ***** ***** ***** WIND SPEED (MEAN KNOTS) **** **** **** **** 10.7 **** **** **** **** **** **** **** **** FASTEST WIND DIRECTION *** *** *** *** 180 *** *** *** *** *** *** *** *** FASTEST WIND SPEED (KNOTS) *** *** *** *** 51 *** *** *** *** *** *** *** *** DAY ** ** ** ** 9 ** ** ** ** ** ** ** DAYS WITH SKY CLEAR (0-2)/8 11 4 9 10 6 20 30 26 25 24 9 3 177 DAYS WITH P.CLOUDY (3-6)/8 7 6 10 9 11 8 1 5 5 7 12 10 91 DAYS WITH CLOUDY (7-8)/8 13 16 12 11 12 2 0 0 0 0 8 17 91 DAYS WITH VISIBILITY =< 2 KM 12 12 4 3 2 1 0 0 0 0 1 7 42 DURATION OF SUNSHINE HOURS 128.9 42.9 142.0 207.7 174.2 316.7 384.6 307.8 295.7 276.5 146.6 53.3 2476.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 821.2 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 827.9 ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** 29- 9 **-** **-** **-** **-** **-** **-** **-** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 812.6 ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** 9- 3 **-** **-** **-** **-** **-** **-** **-** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1004.8 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1012.8 ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** 29- 9 **-** **-** **-** **-** **-** **-** **-** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 994.8 ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** 9- 3 **-** **-** **-** **-** **-** **-** **-** 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 ****** ****** ****** ****** 820.4 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 825.6 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 14 ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 812.6 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 9 ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1003.9 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1010.1 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 14 ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 994.8 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 9 ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 999.6 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1005.2 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 14 ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 989.9 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 9 ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 819.5 817.3 820.3 821.3 821.6 820.5 820.1 822.4 824.1 825.2 825.3 822.1 821.6 MAX. QFE PRESSURE IN HPA 828.4 825.2 828.0 825.5 827.0 825.4 825.2 825.9 827.6 828.2 831.2 827.2 831.2 DAY 5 16 12 21 29 11 6 16 2 29 18 10 MIN. QFE PRESSURE IN HPA 811.0 809.8 812.0 815.0 814.0 818.0 816.4 818.5 821.1 822.2 816.8 817.8 809.8 DAY 31 24 23 18 9 16 19 1 17 6 7 3 MEAN QNH PRESSURE IN HPA 1002.9 1000.3 1003.9 1005.0 1005.3 1004.1 1003.6 1006.3 1008.3 1009.5 1009.7 1005.9 1005.4 MAX. QNH PRESSURE IN HPA 1013.4 1009.6 1012.9 1010.0 1011.7 1009.8 1009.6 1010.4 1012.4 1013.1 1016.7 1012.0 1016.7 DAY 5 16 12 21 29 11 6 16 2 29 18 10 MIN. QNH PRESSURE IN HPA 992.9 991.5 994.0 997.6 996.4 1001.1 999.2 1001.7 1004.8 1006.1 999.7 1000.9 991.5 DAY 31 24 23 18 9 16 19 1 17 6 7 3 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 820.2 817.8 820.6 821.6 821.9 821.1 820.6 822.8 824.7 825.7 825.3 822.1 822.0 MAX. QFE PRESSURE IN HPA 829.1 825.9 829.2 825.5 827.9 826.0 825.8 826.0 828.2 829.0 831.0 827.6 831.0 DAY 5 15 12 8 29 11 6 16 2 29 18 11 MIN. QFE PRESSURE IN HPA 810.4 808.1 811.4 817.0 814.0 818.4 816.6 819.0 822.0 822.6 816.4 817.8 808.1 DAY 30 24 23 18 9 17 19 1 17 6 24 3 MEAN QNH PRESSURE IN HPA 1003.7 1000.9 1004.2 1005.4 1005.7 1004.8 1004.2 1006.8 1009.0 1010.2 1009.7 1006.0 1005.9 MAX. QNH PRESSURE IN HPA 1014.2 1010.4 1014.3 1010.0 1012.8 1010.5 1010.3 1010.5 1013.1 1014.1 1016.4 1012.4 1016.4 DAY 5 15 12 8 29 11 6 16 2 29 18 11 MIN. QNH PRESSURE IN HPA 992.2 989.5 993.3 999.9 996.4 1001.6 999.5 1002.3 1005.8 1006.5 999.2 1000.9 989.5 DAY 30 24 23 18 9 17 19 1 17 6 24 3 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 819.4 816.9 820.0 821.1 821.4 820.4 820.2 822.3 824.1 824.9 824.7 821.3 821.4 MAX. QFE PRESSURE IN HPA 828.1 825.8 828.6 825.0 827.8 825.0 825.2 825.6 827.6 828.0 830.0 826.8 830.0 DAY 4 15 12 20 29 11 6 31 2 29 18 10 MIN. QFE PRESSURE IN HPA 808.2 806.2 810.9 816.7 813.4 817.6 816.2 818.3 821.0 820.9 815.0 817.4 806.2 DAY 30 24 23 17 9 16 19 18 13 10 24 13 MEAN QNH PRESSURE IN HPA 1002.8 999.8 1003.4 1004.8 1005.1 1004.0 1003.7 1006.2 1008.3 1009.3 1009.0 1005.0 1005.1 MAX. QNH PRESSURE IN HPA 1013.0 1010.3 1013.6 1009.4 1012.7 1009.4 1009.6 1010.1 1012.4 1012.9 1015.2 1011.5 1015.2 DAY 4 15 12 20 29 11 6 31 2 29 18 10 MIN. QNH PRESSURE IN HPA 989.6 987.2 992.8 999.6 995.7 1000.6 999.0 1001.5 1004.7 1004.5 997.6 1000.4 987.2 DAY 30 24 23 17 9 16 19 18 13 10 24 13 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** 820.4 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** 825.9 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 14 ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** 813.8 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 9 ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** 1003.9 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** 1010.4 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 14 ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** 996.2 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 9 ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** 999.7 ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** 1006.5 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 2 ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** 990.5 ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MINIMUN AIR TEMPERATURE (C) -6.3 -3.8 -1.2 4.9 9.4 16.2 20.5 19.0 17.3 10.3 0.8 0.3 7.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 19 6 1 0 0 0 28 DAYS WITH MINIMUM TEMP. <=-4 24 14 9 0 0 0 0 0 0 0 8 3 58 DAYS WITH FREEZING MIN.<= 0 31 25 22 1 0 0 0 0 0 0 11 18 108 TEMPERATURE RECORDS LOWEST(C) -18.4 -13.0 -8.0 -1.0 3.7 11.0 15.4 12.2 11.4 4.0 -9.0 -5.0 -18.4 DAY 20 16 18 23 8 22 13 5 25 29 14 20 MAXIMUM AIR TEMPERATURE (C) -1.9 0.8 4.2 12.9 17.2 24.7 30.0 28.6 26.8 18.4 7.1 6.0 14.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 1 18 6 3 0 0 0 28 DAYS WITH MAXIMUM TEMP. <= 0 22 16 8 0 0 0 0 0 0 0 4 0 50 TEMPERATURE RECORDS HIGHEST(C) 3.0 9.4 18.2 22.0 22.0 31.0 34.4 31.8 30.8 23.4 15.4 11.4 34.4 DAY 28 27 31 19 17 30 16 30 1 1 8 23 DIF. BETWEEN (MAX.-MIN.) (C) 4.4 4.6 5.4 8.0 7.8 8.5 9.5 9.6 9.5 8.1 6.3 5.7 7.3 MEAN DAILY TEMP. (MDT) (C) -4.1 -1.5 1.5 8.9 13.3 20.4 25.3 23.8 22.1 14.4 3.9 3.2 10.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.0 30.6 133.0 84.4 48.7 0.0 0.0 0.0 296.7 HEATING DEG. DAYS(BASE 18 0C) 684.7 545.3 487.1 263.9 137.6 8.5 0.0 0.0 1.1 115.1 421.5 460.3 3125.1 DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MAX. %) 83 80 74 79 74 53 52 53 47 69 88 86 70 RELATIVE HUMIDITY (MIN. %) 73 69 58 60 52 39 37 38 34 54 75 74 55 RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) 77 75 68 70 61 47 47 46 43 62 82 80 63 RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 86.6 68.1 53.0 241.8 121.0 0.0 4.0 3.0 0.0 54.0 317.8 77.0 1026.3 DAYS WITH PRECIPITATION >=10 3 4 2 4 6 0 0 0 0 2 8 3 32 DAYS WITH PRECIPITATION >= 5 5 5 4 5 7 0 0 0 0 2 11 6 45 DAYS WITH PRECIPITATION >= 1 10 9 7 10 11 0 1 1 0 5 13 7 74 DAYS WITH PRECIPITATION 12 10 11 11 13 0 1 2 0 5 13 7 85 GREATEST DAILY PRECIPITATION 29.4 17.0 18.0 91.0 30.0 0.0 4.0 3.0 0.0 26.0 68.0 29.0 91.0 DAY 8 21 19 8 13 ** 29 28 ** 29 1 8 DAY WITH THUNDER STORM 0 2 2 2 2 0 0 0 0 0 0 0 8 DAYS WITH SNOW OR SLEET 9 9 8 2 0 0 0 0 0 0 3 2 33 DAYS WITH DUST 0 0 0 1 0 1 0 0 0 0 0 1 3 WIND DIRECTION (PREVAILING) *** *** *** *** *** *** *** *** *** *** *** *** *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** PREVAILING WIND PERCENT ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** CALMS PERCENT OF WIND ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** NO. OF WIND OBSERVATION 90 82 89 90 93 89 93 93 89 92 89 93 1082 VECTOR WIND DIRECTION (MEAN) *** *** *** *** *** *** *** *** *** *** *** *** *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** WIND SPEED (MEAN KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** FASTEST WIND DIRECTION *** *** *** *** *** *** *** *** *** *** *** *** *** FASTEST WIND SPEED (KNOTS) *** *** *** *** *** *** *** *** *** *** *** *** *** DAY ** ** ** ** ** ** ** ** ** ** ** ** DAYS WITH SKY CLEAR (0-2)/8 10 10 10 2 8 24 30 23 28 20 5 5 175 DAYS WITH P.CLOUDY (3-6)/8 7 8 8 14 11 5 1 8 2 9 9 11 93 DAYS WITH CLOUDY (7-8)/8 14 10 13 14 12 1 0 0 0 2 16 15 97 DAYS WITH VISIBILITY =< 2 KM 8 7 5 5 2 0 0 0 0 1 5 4 37 DURATION OF SUNSHINE HOURS 108.5 57.9 ****** 179.4 152.0 ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 822.8 822.7 823.4 822.8 823.7 823.3 821.9 822.8 823.5 827.6 822.9 824.5 823.5 MAX. QFE PRESSURE IN HPA 828.6 827.9 830.0 829.7 827.8 829.0 825.0 825.5 826.8 832.5 829.3 830.0 832.5 DAY 27 25 30 17 28 22 26 30 19 18 21 26 MIN. QFE PRESSURE IN HPA 812.0 813.6 816.0 817.9 818.2 817.7 817.5 819.4 820.8 821.1 813.0 818.2 812.0 DAY 8 3 5 11 6 3 11 13 8 28 11 4 MEAN QNH PRESSURE IN HPA 1006.8 1006.7 1007.4 1006.8 1007.9 1007.4 1005.7 1006.7 1007.6 1012.4 1006.9 1008.8 1007.6 MAX. QNH PRESSURE IN HPA 1013.6 1012.8 1015.2 1014.9 1012.7 1014.1 1009.4 1010.0 1011.5 1018.2 1014.4 1015.2 1018.2 DAY 27 25 30 17 28 22 26 30 19 18 21 26 MIN. QNH PRESSURE IN HPA 994.0 995.9 998.8 1001.0 1001.4 1000.8 1000.5 1002.8 1004.4 1004.8 995.2 1001.4 994.0 DAY 8 3 5 11 6 3 11 13 8 28 11 4 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 822.7 822.7 822.6 823.0 824.2 823.6 822.1 822.8 823.9 827.7 823.2 825.1 823.6 MAX. QFE PRESSURE IN HPA 828.8 828.4 830.2 829.7 827.7 829.4 825.0 825.4 827.4 832.6 829.5 831.1 832.6 DAY 27 26 30 17 28 22 26 30 19 17 21 26 MIN. QFE PRESSURE IN HPA 812.6 814.4 812.0 817.8 818.1 817.0 817.8 819.8 821.1 820.4 813.5 819.0 812.0 DAY 8 3 3 11 6 3 11 13 7 28 11 4 MEAN QNH PRESSURE IN HPA 1006.7 1006.6 1006.5 1007.0 1008.4 1007.7 1005.9 1006.8 1008.1 1012.5 1007.2 1009.5 1007.7 MAX. QNH PRESSURE IN HPA 1013.8 1013.4 1015.5 1014.9 1012.5 1014.5 1009.4 1009.8 1012.2 1018.3 1014.7 1016.5 1018.3 DAY 27 26 30 17 28 22 26 30 19 17 21 26 MIN. QNH PRESSURE IN HPA 994.8 996.9 994.0 1000.9 1001.2 999.9 1000.9 1003.2 1004.8 1003.9 995.8 1002.3 994.0 DAY 8 3 3 11 6 3 11 13 7 28 11 4 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 821.8 821.8 821.6 822.5 823.8 823.1 821.5 822.1 823.3 826.9 822.6 824.5 822.9 MAX. QFE PRESSURE IN HPA 826.2 827.4 829.5 829.5 827.4 829.0 824.5 824.4 826.8 832.0 828.8 830.5 832.0 DAY 6 24 30 16 9 22 27 19 19 17 21 26 MIN. QFE PRESSURE IN HPA 811.6 813.4 812.8 818.0 818.0 816.4 816.8 819.1 821.0 820.0 814.0 818.9 811.6 DAY 8 2 3 20 6 3 11 13 7 28 11 4 MEAN QNH PRESSURE IN HPA 1005.6 1005.6 1005.3 1006.4 1007.9 1007.1 1005.3 1006.0 1007.3 1011.6 1006.5 1008.7 1006.9 MAX. QNH PRESSURE IN HPA 1010.8 1012.2 1014.7 1014.7 1012.2 1014.1 1008.8 1008.7 1011.5 1017.6 1013.8 1015.8 1017.6 DAY 6 24 30 16 9 22 27 19 19 17 21 26 MIN. QNH PRESSURE IN HPA 993.6 995.7 995.0 1001.1 1001.1 999.2 999.7 1002.4 1004.7 1003.5 996.4 1002.2 993.6 DAY 8 2 3 20 6 3 11 13 7 28 11 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MINIMUN AIR TEMPERATURE (C) -1.7 -2.7 2.5 8.2 10.5 15.9 19.7 20.1 15.1 10.4 3.4 -5.1 8.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 10 8 1 0 0 0 21 DAYS WITH MINIMUM TEMP. <=-4 5 7 0 0 0 0 0 0 0 0 0 19 31 DAYS WITH FREEZING MIN.<= 0 25 24 11 0 0 0 0 0 0 0 3 31 94 TEMPERATURE RECORDS LOWEST(C) -6.8 -8.0 -2.8 1.4 3.4 7.8 15.0 18.0 9.4 6.0 -1.8 -14.0 -14.0 DAY 24 18 16 2 6 29 1 31 28 31 9 7 MAXIMUM AIR TEMPERATURE (C) 3.5 2.6 8.8 16.2 19.0 25.4 29.9 30.2 24.2 18.5 9.3 -0.6 15.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 0 16 21 0 0 0 0 37 DAYS WITH MAXIMUM TEMP. <= 0 3 5 0 0 0 0 0 0 0 0 0 19 27 TEMPERATURE RECORDS HIGHEST(C) 9.2 8.4 15.4 22.2 27.0 29.0 33.6 32.8 29.2 22.0 15.2 4.6 33.6 DAY 3 27 31 21 31 1 15 18 11 1 2 27 DIF. BETWEEN (MAX.-MIN.) (C) 5.2 5.3 6.3 8.0 8.5 9.5 10.2 10.1 9.1 8.1 5.9 4.5 7.6 MEAN DAILY TEMP. (MDT) (C) 0.9 -0.1 5.7 12.2 14.7 20.7 24.8 25.2 19.6 14.4 6.3 -2.9 11.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 1.6 36.1 118.6 129.6 10.6 0.0 0.0 0.0 296.5 HEATING DEG. DAYS(BASE 18 0C) 530.1 505.7 382.6 174.0 120.1 19.6 0.0 0.0 9.1 110.4 350.0 647.2 2848.8 DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MAX. %) 92 90 83 75 70 61 57 51 56 74 87 88 74 RELATIVE HUMIDITY (MIN. %) 79 76 66 50 50 41 42 37 39 54 70 81 57 RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) 87 85 76 64 57 51 52 44 48 64 77 83 66 RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 190.2 115.1 105.6 120.6 20.0 9.6 0.0 0.0 4.0 59.8 323.7 146.0 1094.6 DAYS WITH PRECIPITATION >=10 6 5 4 8 0 0 0 0 0 3 9 8 43 DAYS WITH PRECIPITATION >= 5 7 8 7 10 2 1 0 0 0 4 11 11 61 DAYS WITH PRECIPITATION >= 1 12 16 11 13 5 2 0 0 2 8 14 16 99 DAYS WITH PRECIPITATION 12 19 13 13 5 3 0 0 2 9 18 16 110 GREATEST DAILY PRECIPITATION 47.0 23.0 24.8 22.0 9.0 8.0 0.0 0.0 3.0 23.0 74.0 21.0 74.0 DAY 4 28 12 30 4 5 ** ** 29 19 6 31 DAY WITH THUNDER STORM 0 0 0 2 0 1 0 0 0 0 0 0 3 DAYS WITH SNOW OR SLEET 4 11 5 0 0 0 0 0 0 0 2 11 33 DAYS WITH DUST 0 1 0 0 0 0 0 0 0 0 1 0 2 WIND DIRECTION (PREVAILING) *** *** *** *** *** *** *** *** *** *** *** *** *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** PREVAILING WIND PERCENT ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** CALMS PERCENT OF WIND ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** NO. OF WIND OBSERVATION 93 84 93 103 93 90 93 93 87 93 90 91 1103 VECTOR WIND DIRECTION (MEAN) *** *** *** *** *** *** *** *** *** *** *** *** *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** WIND SPEED (MEAN KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** FASTEST WIND DIRECTION *** *** *** *** *** *** *** *** *** *** *** *** *** FASTEST WIND SPEED (KNOTS) *** *** *** *** *** *** *** *** *** *** *** *** *** DAY ** ** ** ** ** ** ** ** ** ** ** ** DAYS WITH SKY CLEAR (0-2)/8 6 6 6 12 17 25 31 31 22 14 6 8 184 DAYS WITH P.CLOUDY (3-6)/8 11 6 9 8 9 4 0 0 7 11 9 7 81 DAYS WITH CLOUDY (7-8)/8 14 16 16 10 5 1 0 0 0 6 15 14 97 DAYS WITH VISIBILITY =< 2 KM 3 7 2 2 0 0 0 0 0 0 2 8 24 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 821.5 819.0 820.5 823.6 823.6 821.0 820.0 821.7 827.3 826.2 821.0 821.7 822.3 MAX. QFE PRESSURE IN HPA 827.7 826.4 827.0 828.0 828.4 824.4 822.0 826.0 831.2 830.4 828.8 827.6 831.2 DAY 9 19 18 15 22 8 1 15 23 11 2 21 MIN. QFE PRESSURE IN HPA 812.0 812.1 809.2 815.4 817.1 815.8 818.0 817.7 823.6 822.7 813.6 808.0 808.0 DAY 16 1 7 2 4 28 15 2 7 16 17 3 MEAN QNH PRESSURE IN HPA 1005.3 1002.3 1004.1 1007.7 1007.8 1004.6 1003.5 1005.4 1012.1 1010.8 1004.6 1005.5 1006.1 MAX. QNH PRESSURE IN HPA 1012.5 1011.0 1011.7 1012.9 1013.4 1008.7 1005.8 1010.5 1016.7 1015.7 1013.8 1012.4 1016.7 DAY 9 19 18 15 22 8 1 15 23 11 2 21 MIN. QNH PRESSURE IN HPA 994.0 994.2 990.7 998.1 1000.1 998.5 1001.1 1000.8 1007.7 1006.7 995.9 989.3 989.3 DAY 16 1 7 2 4 28 15 2 7 16 17 3 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 822.1 819.9 821.4 823.9 824.1 821.2 820.2 821.9 827.3 826.6 821.3 822.4 822.7 MAX. QFE PRESSURE IN HPA 829.0 827.1 828.0 828.6 828.7 824.8 822.2 825.8 831.5 830.7 829.5 827.0 831.5 DAY 18 19 18 15 21 8 26 15 23 11 2 7 MIN. QFE PRESSURE IN HPA 812.5 813.0 811.0 815.8 817.0 816.5 818.4 818.0 823.5 822.9 814.8 807.3 807.3 DAY 16 1 7 1 4 28 15 1 2 17 17 3 MEAN QNH PRESSURE IN HPA 1006.0 1003.4 1005.1 1008.1 1008.3 1004.9 1003.7 1005.7 1012.1 1011.2 1005.0 1006.3 1006.6 MAX. QNH PRESSURE IN HPA 1014.1 1011.8 1012.9 1013.6 1013.7 1009.1 1006.1 1010.3 1017.0 1016.1 1014.7 1011.7 1017.0 DAY 18 19 18 15 21 8 26 15 23 11 2 7 MIN. QNH PRESSURE IN HPA 994.6 995.2 992.9 998.5 999.9 999.4 1001.6 1001.1 1007.6 1006.9 997.3 988.5 988.5 DAY 16 1 7 1 4 28 15 1 2 17 17 3 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 821.5 819.5 820.6 823.6 823.7 820.8 819.7 821.4 826.7 825.8 820.6 821.9 822.1 MAX. QFE PRESSURE IN HPA 828.3 826.6 827.0 827.7 828.0 824.0 821.7 824.8 831.0 829.8 828.5 827.5 831.0 DAY 9 18 18 15 17 7 26 15 23 11 2 21 MIN. QFE PRESSURE IN HPA 813.0 813.2 811.5 812.2 816.8 817.0 817.6 817.8 823.0 822.0 814.9 807.6 807.6 DAY 16 1 7 1 4 27 15 1 1 16 25 3 MEAN QNH PRESSURE IN HPA 1005.2 1002.9 1004.2 1007.7 1007.8 1004.4 1003.1 1005.1 1011.3 1010.3 1004.2 1005.7 1006.0 MAX. QNH PRESSURE IN HPA 1013.2 1011.2 1011.7 1012.5 1012.9 1008.2 1005.5 1009.1 1016.4 1015.0 1013.5 1012.3 1016.4 DAY 9 18 18 15 17 7 26 15 23 11 2 21 MIN. QNH PRESSURE IN HPA 995.2 995.5 993.5 994.3 999.7 999.9 1000.6 1000.9 1007.0 1005.8 997.5 988.9 988.9 DAY 16 1 7 1 4 27 15 1 1 16 25 3 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MINIMUN AIR TEMPERATURE (C) -1.3 -2.1 1.1 5.3 11.2 15.5 19.7 21.5 15.6 9.3 3.4 -2.2 8.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 14 20 2 0 0 0 38 DAYS WITH MINIMUM TEMP. <=-4 6 6 2 0 0 0 0 0 0 0 4 8 26 DAYS WITH FREEZING MIN.<= 0 19 22 9 1 0 0 0 0 0 0 10 25 86 TEMPERATURE RECORDS LOWEST(C) -7.0 -6.2 -5.4 -0.4 4.2 10.0 15.0 18.4 5.8 4.6 -9.4 -7.2 -9.4 DAY 21 24 27 4 9 3 2 23 20 13 26 19 MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** **** **** **** **** **** **** **** **** **** **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** DAY ** ** ** ** ** ** ** ** ** ** ** ** DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** COOLING DEG. DAYS(BASE 21 0C) 0.0 ****** 0.0 0.0 0.0 0.4 0.0 7.7 0.0 0.0 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C) 0.0 ****** 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7.1 0.0 ****** DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MAX. %) 90 86 79 79 69 62 49 41 52 58 66 80 68 RELATIVE HUMIDITY (MIN. %) 76 72 60 59 51 45 33 29 37 40 48 63 51 RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) 84 79 69 68 58 50 41 35 42 47 57 71 58 RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 94.6 168.4 180.0 346.9 70.4 33.6 0.0 0.0 17.6 0.0 59.8 26.4 997.7 DAYS WITH PRECIPITATION >=10 4 5 8 9 2 1 0 0 1 0 2 1 33 DAYS WITH PRECIPITATION >= 5 6 9 13 11 5 2 0 0 1 0 5 2 54 DAYS WITH PRECIPITATION >= 1 9 9 14 15 12 5 0 0 3 0 9 5 81 DAYS WITH PRECIPITATION 12 10 14 16 13 6 0 0 4 0 10 6 91 GREATEST DAILY PRECIPITATION 24.0 41.0 31.0 94.0 20.0 22.0 0.0 0.0 13.0 0.0 12.2 13.0 94.0 DAY 17 8 17 19 4 3 ** ** 20 ** 3 12 DAY WITH THUNDER STORM 1 0 0 0 1 0 0 0 0 0 1 0 3 DAYS WITH SNOW OR SLEET 8 7 3 1 0 0 0 0 0 0 1 4 24 DAYS WITH DUST 1 0 1 0 0 1 0 0 0 0 0 0 3 WIND DIRECTION (PREVAILING) *** *** *** *** *** *** *** *** *** *** *** *** *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** PREVAILING WIND PERCENT ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** CALMS PERCENT OF WIND ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** NO. OF WIND OBSERVATION 93 83 93 90 93 88 93 92 90 93 90 93 1091 VECTOR WIND DIRECTION (MEAN) *** *** *** *** *** *** *** *** *** *** *** *** *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** WIND SPEED (MEAN KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** FASTEST WIND DIRECTION *** *** *** *** *** *** *** *** *** *** *** *** *** FASTEST WIND SPEED (KNOTS) *** *** *** *** *** *** *** *** *** *** *** *** *** DAY ** ** ** ** ** ** ** ** ** ** ** ** DAYS WITH SKY CLEAR (0-2)/8 8 9 12 3 14 19 31 31 22 21 15 10 195 DAYS WITH P.CLOUDY (3-6)/8 12 7 8 13 11 9 0 0 7 9 12 13 101 DAYS WITH CLOUDY (7-8)/8 11 12 11 14 6 2 0 0 1 1 3 8 69 DAYS WITH VISIBILITY =< 2 KM 5 6 4 3 0 1 0 0 0 0 1 3 23 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** 370.4 379.3 310.6 287.5 229.6 190.7 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 822.8 822.4 822.5 822.2 825.1 822.7 820.1 822.3 823.9 825.7 823.7 823.2 823.0 MAX. QFE PRESSURE IN HPA 828.0 827.0 830.4 825.2 829.6 827.6 822.6 825.5 830.0 832.4 828.8 826.0 832.4 DAY 7 1 3 1 22 1 4 25 13 25 16 29 MIN. QFE PRESSURE IN HPA 817.8 810.5 815.2 814.7 818.0 816.0 816.8 819.0 819.8 820.9 817.0 818.8 810.5 DAY 11 5 25 19 2 29 2 8 20 12 25 12 MEAN QNH PRESSURE IN HPA 1006.8 1006.4 1006.4 1006.1 1009.5 1006.6 1003.5 1006.1 1008.1 1010.2 1007.8 1007.3 1007.1 MAX. QNH PRESSURE IN HPA 1012.9 1011.7 1015.7 1009.6 1014.8 1012.4 1006.5 1010.0 1015.2 1018.1 1013.8 1010.5 1018.1 DAY 7 1 3 1 22 1 4 25 13 25 16 29 MIN. QNH PRESSURE IN HPA 1000.9 992.3 997.8 997.2 1001.1 998.8 999.7 1002.3 1003.2 1004.5 999.9 1002.1 992.3 DAY 11 5 25 19 2 29 2 8 20 12 25 12 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 823.8 823.6 823.2 822.5 825.5 822.9 820.6 823.0 824.5 826.2 824.6 824.4 823.7 MAX. QFE PRESSURE IN HPA 828.8 828.5 830.8 826.2 829.0 826.0 823.0 826.6 830.0 832.6 830.8 828.0 832.6 DAY 6 1 3 1 21 1 4 25 13 25 15 23 MIN. QFE PRESSURE IN HPA 817.8 812.8 816.9 815.0 819.7 816.5 817.4 819.6 818.8 821.4 817.6 818.9 812.8 DAY 11 5 26 19 2 29 2 8 19 12 25 12 MEAN QNH PRESSURE IN HPA 1007.9 1007.8 1007.2 1006.5 1010.0 1006.8 1004.2 1007.0 1008.7 1010.8 1008.9 1008.6 1007.9 MAX. QNH PRESSURE IN HPA 1013.8 1013.5 1016.2 1010.8 1014.1 1010.5 1007.0 1011.2 1015.2 1018.3 1016.2 1012.9 1018.3 DAY 6 1 3 1 21 1 4 25 13 25 15 23 MIN. QNH PRESSURE IN HPA 1000.9 995.0 999.8 997.6 1003.1 999.4 1000.4 1003.0 1002.1 1005.1 1000.6 1002.2 995.0 DAY 11 5 26 19 2 29 2 8 19 12 25 12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 823.0 822.9 822.6 822.1 824.9 822.4 820.3 822.6 824.1 825.6 824.1 823.5 823.2 MAX. QFE PRESSURE IN HPA 827.8 827.9 829.7 826.1 828.8 825.4 822.6 825.9 829.3 831.9 830.4 827.4 831.9 DAY 6 13 3 6 21 1 31 25 13 25 15 23 MIN. QFE PRESSURE IN HPA 816.2 814.0 814.9 816.2 820.0 816.8 817.6 819.0 818.6 821.5 818.0 818.8 814.0 DAY 16 5 16 19 2 29 2 8 19 12 25 12 MEAN QNH PRESSURE IN HPA 1007.0 1006.9 1006.5 1005.9 1009.3 1006.3 1003.8 1006.6 1008.3 1010.1 1008.3 1007.6 1007.2 MAX. QNH PRESSURE IN HPA 1012.7 1012.8 1014.9 1010.7 1013.8 1009.8 1006.5 1010.4 1014.4 1017.5 1015.7 1012.2 1017.5 DAY 6 13 3 6 21 1 31 25 13 25 15 23 MIN. QNH PRESSURE IN HPA 999.0 996.4 997.5 999.0 1003.5 999.7 1000.6 1002.3 1001.8 1005.2 1001.1 1002.1 996.4 DAY 16 5 16 19 2 29 2 8 19 12 25 12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** 21.7 13.6 ***** ***** ***** MINIMUN AIR TEMPERATURE (C) -4.4 -1.0 -1.1 4.4 12.7 15.8 20.8 20.8 16.6 9.7 4.3 1.9 8.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 16 14 3 0 0 0 35 DAYS WITH MINIMUM TEMP. <=-4 18 6 0 0 0 0 0 0 0 0 0 0 24 DAYS WITH FREEZING MIN.<= 0 29 17 24 2 0 0 0 0 0 0 1 9 82 TEMPERATURE RECORDS LOWEST(C) -10.4 -9.6 -3.6 -2.4 8.0 10.2 17.2 17.4 11.0 3.0 -0.6 -1.0 -10.4 DAY 15 4 8 4 11 12 7 15 23 28 12 15 MAXIMUM AIR TEMPERATURE (C) -0.0 4.3 4.6 12.4 21.3 25.2 31.6 31.1 26.0 17.4 10.8 6.5 15.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 2 24 23 3 0 0 0 52 DAYS WITH MAXIMUM TEMP. <= 0 16 5 3 0 0 0 0 0 0 0 0 0 24 TEMPERATURE RECORDS HIGHEST(C) 7.0 9.8 10.8 19.8 26.0 30.8 34.8 34.2 30.6 25.0 15.4 13.2 34.8 DAY 1 25 30 30 27 30 21 2 2 3 3 4 DIF. BETWEEN (MAX.-MIN.) (C) 4.4 5.3 5.7 8.0 8.6 9.4 10.8 10.3 9.4 7.7 6.5 4.6 7.5 MEAN DAILY TEMP. (MDT) (C) -2.2 1.6 1.7 8.4 17.0 20.5 26.2 26.0 21.3 13.6 7.5 4.2 12.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.5 25.7 162.1 154.5 39.2 0.0 0.0 0.0 382.1 HEATING DEG. DAYS(BASE 18 0C) 626.6 474.8 503.9 288.7 56.6 5.8 0.0 0.0 4.3 143.4 314.3 428.1 2846.5 DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** 3.4 1.3 ***** ***** ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** 6.04 5.25 ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** 7.91 6.91 ****** ****** ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** 18.71 9.35 ****** ****** ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** 32 46 *** *** *** RELATIVE HUMIDITY (MAX. %) 89 86 89 73 53 45 40 34 40 59 63 76 62 RELATIVE HUMIDITY (MIN. %) 78 69 72 49 37 31 28 24 25 35 41 62 46 RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** 38 53 *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) 84 80 81 54 47 36 34 28 29 45 50 70 53 RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** 29 43 *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 149.9 63.0 185.0 231.9 77.8 0.0 14.0 0.0 3.7 52.0 5.7 162.7 945.7 DAYS WITH PRECIPITATION >=10 5 1 9 6 3 0 1 0 0 1 0 6 32 DAYS WITH PRECIPITATION >= 5 10 6 11 12 4 0 1 0 0 5 0 9 58 DAYS WITH PRECIPITATION >= 1 15 15 21 17 10 0 2 0 1 8 2 17 108 DAYS WITH PRECIPITATION 16 15 21 19 12 0 2 0 3 11 5 20 124 GREATEST DAILY PRECIPITATION 31.0 11.0 24.0 65.0 31.0 0.0 12.0 0.0 2.0 17.0 4.0 31.0 65.0 DAY 5 1 2 12 11 ** 13 ** 22 26 6 29 DAY WITH THUNDER STORM 0 0 1 3 3 0 0 0 2 4 0 0 13 DAYS WITH SNOW OR SLEET 10 7 13 1 0 0 0 0 0 0 0 5 36 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) *** *** *** *** *** *** *** *** 270 225 *** *** *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** **** **** **** **** 7.2 10.6 **** **** **** PREVAILING WIND PERCENT ***** ***** ***** ***** ***** ***** ***** ***** 30.7 24.5 ***** ***** ***** CALMS PERCENT OF WIND ***** ***** ***** ***** ***** ***** ***** ***** 24.0 16.8 ***** ***** ***** NO. OF WIND OBSERVATION 93 87 93 90 93 108 93 119 150 155 116 93 1290 VECTOR WIND DIRECTION (MEAN) *** *** *** *** *** *** *** *** 242 241 *** *** *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** **** **** **** **** 4.3 2.8 **** **** **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** ***** ***** ***** ***** 71.7 40.0 ***** ***** ***** WIND SPEED (MEAN KNOTS) **** **** **** **** **** **** **** **** 6.0 7.0 **** **** **** FASTEST WIND DIRECTION *** *** *** *** *** *** *** *** 270 210 *** *** *** FASTEST WIND SPEED (KNOTS) *** *** *** *** *** *** *** *** 19 25 *** *** *** DAY ** ** ** ** ** ** ** ** 3 23 ** ** DAYS WITH SKY CLEAR (0-2)/8 5 6 2 2 13 27 28 31 27 15 20 4 180 DAYS WITH P.CLOUDY (3-6)/8 11 9 9 19 12 2 3 0 3 11 4 11 94 DAYS WITH CLOUDY (7-8)/8 15 14 20 9 6 1 0 0 0 5 6 16 92 DAYS WITH VISIBILITY =< 2 KM 10 4 11 3 0 0 0 0 0 1 1 7 37 DURATION OF SUNSHINE HOURS 115.3 122.4 124.1 213.1 296.9 376.8 370.5 375.3 313.0 253.9 219.6 103.9 2884.8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 823.7 825.3 ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 830.0 831.3 ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 25- 9 1- 9 **-** **-** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 815.8 818.8 ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 22- 3 27- 3 **-** **-** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1007.8 1009.7 ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1015.2 1016.8 ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 25- 9 1- 9 **-** **-** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 998.5 1002.1 ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** 22- 3 27- 3 **-** **-** 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 ****** ****** ****** ****** ****** ****** ****** ****** 823.0 824.7 ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 829.0 831.0 ****** ****** ****** DAY ** ** ** ** ** ** ** ** 26 2 ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 815.8 818.8 ****** ****** ****** DAY ** ** ** ** ** ** ** ** 22 27 ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1007.0 1009.0 ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1014.1 1016.4 ****** ****** ****** DAY ** ** ** ** ** ** ** ** 26 2 ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 998.5 1002.1 ****** ****** ****** DAY ** ** ** ** ** ** ** ** 22 27 ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 995.5 1002.5 ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1001.6 1009.9 ****** ****** ****** DAY ** ** ** ** ** ** ** ** 26 19 ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 989.6 997.0 ****** ****** ****** DAY ** ** ** ** ** ** ** ** 8 5 ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 820.9 820.5 818.8 822.0 823.8 821.8 822.6 822.8 823.6 825.4 827.0 825.1 822.9 MAX. QFE PRESSURE IN HPA 827.6 826.0 825.8 825.8 827.8 825.0 827.3 827.5 829.4 831.0 832.2 828.9 832.2 DAY 26 8 29 28 18 12 3 29 26 2 16 4 MIN. QFE PRESSURE IN HPA 813.7 814.2 812.3 814.0 819.4 818.0 817.6 819.0 818.0 819.3 823.0 819.8 812.3 DAY 6 5 7 13 29 19 7 8 22 27 7 14 MEAN QNH PRESSURE IN HPA 1004.5 1004.0 1002.0 1005.8 1008.0 1005.6 1006.6 1006.8 1007.8 1009.8 1011.8 1009.5 1006.8 MAX. QNH PRESSURE IN HPA 1012.4 1010.5 1010.3 1010.3 1012.7 1009.4 1012.1 1012.3 1014.5 1016.4 1017.8 1014.0 1017.8 DAY 26 8 29 28 18 12 3 29 26 2 16 4 MIN. QNH PRESSURE IN HPA 996.1 996.6 994.4 996.4 1002.8 1001.1 1000.6 1002.3 1001.1 1002.6 1007.0 1003.2 994.4 DAY 6 5 7 13 29 19 7 8 22 27 7 14 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 822.1 821.2 819.5 822.4 824.4 822.3 823.1 823.3 824.2 826.0 827.4 825.4 823.4 MAX. QFE PRESSURE IN HPA 829.3 826.2 825.9 826.3 827.9 825.0 828.2 828.0 830.0 831.3 833.5 829.4 833.5 DAY 26 24 29 27 17 12 3 29 25 1 16 4 MIN. QFE PRESSURE IN HPA 814.0 814.8 811.8 815.0 820.7 819.0 817.6 819.5 818.4 820.0 823.2 818.5 811.8 DAY 6 5 7 13 29 19 6 8 21 27 6 29 MEAN QNH PRESSURE IN HPA 1005.9 1004.9 1002.8 1006.3 1008.6 1006.2 1007.1 1007.4 1008.5 1010.5 1012.2 1009.9 1007.5 MAX. QNH PRESSURE IN HPA 1014.4 1010.8 1010.4 1010.9 1012.8 1009.4 1013.1 1012.9 1015.2 1016.8 1019.4 1014.5 1019.4 DAY 26 24 29 27 17 12 3 29 25 1 16 4 MIN. QNH PRESSURE IN HPA 996.4 997.3 993.8 997.6 1004.3 1002.3 1000.6 1002.9 1001.6 1003.5 1007.2 1001.7 993.8 DAY 6 5 7 13 29 19 6 8 21 27 6 29 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 821.2 820.2 818.8 821.8 824.1 822.0 822.6 822.9 823.8 825.3 826.5 824.5 822.8 MAX. QFE PRESSURE IN HPA 828.5 825.0 825.9 825.9 827.8 824.1 828.8 827.7 830.0 831.2 831.9 828.0 831.9 DAY 25 23 29 26 17 12 3 29 25 1 16 4 MIN. QFE PRESSURE IN HPA 814.7 815.0 810.0 813.7 821.0 819.0 817.0 819.0 817.6 820.2 822.4 818.2 810.0 DAY 6 5 7 12 28 18 6 7 21 27 6 29 MEAN QNH PRESSURE IN HPA 1004.9 1003.7 1002.0 1005.5 1008.3 1005.8 1006.5 1006.9 1008.0 1009.8 1011.2 1008.8 1006.8 MAX. QNH PRESSURE IN HPA 1013.5 1009.4 1010.4 1010.4 1012.7 1008.3 1013.8 1012.5 1015.2 1016.7 1017.5 1012.9 1017.5 DAY 25 23 29 26 17 12 3 29 25 1 16 4 MIN. QNH PRESSURE IN HPA 997.2 997.6 991.7 996.1 1004.7 1002.3 999.9 1002.3 1000.6 1003.7 1006.3 1001.4 991.7 DAY 6 5 7 12 28 18 6 7 21 27 6 29 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 823.6 825.1 ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 829.8 830.8 ****** ****** ****** DAY ** ** ** ** ** ** ** ** 25 1 ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 818.0 820.0 ****** ****** ****** DAY ** ** ** ** ** ** ** ** 21 26 ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1007.7 1009.4 ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1015.0 1016.2 ****** ****** ****** DAY ** ** ** ** ** ** ** ** 25 1 ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1001.1 1003.5 ****** ****** ****** DAY ** ** ** ** ** ** ** ** 21 26 ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 996.2 1003.0 ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 1003.1 1011.1 ****** ****** ****** DAY ** ** ** ** ** ** ** ** 25 18 ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** 990.6 996.8 ****** ****** ****** DAY ** ** ** ** ** ** ** ** 7 5 ** ** 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MINIMUN AIR TEMPERATURE (C) -3.3 -5.4 -4.2 4.2 11.5 17.2 20.0 21.1 15.3 11.4 3.6 -0.7 7.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 13 18 0 0 0 0 33 DAYS WITH MINIMUM TEMP. <=-4 13 18 15 3 0 0 0 0 0 0 0 4 53 DAYS WITH FREEZING MIN.<= 0 23 25 30 8 0 0 0 0 0 0 1 19 106 TEMPERATURE RECORDS LOWEST(C) -13.0 -13.0 -12.0 -7.0 3.2 12.2 15.0 17.8 9.0 6.2 -0.2 -5.6 -13.0 DAY 29 1 8 11 5 6 5 15 14 22 30 20 MAXIMUM AIR TEMPERATURE (C) 2.3 -0.1 1.3 12.2 20.2 26.6 29.5 31.2 24.3 18.8 9.2 4.1 15.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 4 12 27 0 0 0 0 43 DAYS WITH MAXIMUM TEMP. <= 0 12 17 11 1 0 0 0 0 0 0 0 3 44 TEMPERATURE RECORDS HIGHEST(C) 9.2 8.0 9.8 24.8 26.8 30.6 34.4 32.8 28.4 29.6 13.4 10.6 34.4 DAY 14 18 31 25 30 28 28 26 1 18 17 8 DIF. BETWEEN (MAX.-MIN.) (C) 5.6 5.3 5.5 8.0 8.7 9.4 9.5 10.1 9.0 7.4 5.6 4.8 7.4 MEAN DAILY TEMP. (MDT) (C) -0.5 -2.8 -1.5 8.2 15.8 21.9 24.8 26.1 19.8 15.1 6.4 1.7 11.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 4.5 46.3 118.7 159.2 16.4 2.3 0.0 0.0 347.4 HEATING DEG. DAYS(BASE 18 0C) 572.9 581.6 603.0 300.2 88.8 1.7 0.0 0.0 13.3 104.2 347.4 505.7 3118.8 DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MAX. %) 72 73 82 65 52 40 40 33 38 48 72 70 57 RELATIVE HUMIDITY (MIN. %) 58 61 67 47 38 29 29 23 27 35 54 51 43 RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) 66 65 73 51 43 33 33 27 31 40 63 59 49 RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 102.4 70.1 171.7 96.6 56.0 5.8 3.3 0.0 0.1 60.2 165.5 133.8 865.5 DAYS WITH PRECIPITATION >=10 5 4 7 4 3 0 0 0 0 5 6 4 38 DAYS WITH PRECIPITATION >= 5 6 7 12 10 4 0 0 0 0 5 6 5 55 DAYS WITH PRECIPITATION >= 1 8 11 17 14 5 3 1 0 0 5 8 11 83 DAYS WITH PRECIPITATION 9 12 20 14 14 6 2 0 1 10 10 14 112 GREATEST DAILY PRECIPITATION 28.0 12.0 24.6 13.0 16.1 2.2 3.1 0.0 0.1 14.0 60.0 36.0 60.0 DAY 10 26 7 10 22 10 5 ** 30 22 4 20 DAY WITH THUNDER STORM 0 0 0 1 5 3 0 0 0 2 2 0 13 DAYS WITH SNOW OR SLEET 6 8 15 3 0 0 0 0 0 0 2 8 42 DAYS WITH DUST 0 0 1 0 0 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) *** *** *** *** *** *** *** *** *** *** *** *** *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** PREVAILING WIND PERCENT ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** CALMS PERCENT OF WIND ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** NO. OF WIND OBSERVATION 93 84 93 90 93 90 93 93 90 93 90 93 1095 VECTOR WIND DIRECTION (MEAN) *** *** *** *** *** *** *** *** *** *** *** *** *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** WIND SPEED (MEAN KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** FASTEST WIND DIRECTION *** *** *** *** *** *** *** *** *** *** *** *** *** FASTEST WIND SPEED (KNOTS) *** *** *** *** *** *** *** *** *** *** *** *** *** DAY ** ** ** ** ** ** ** ** ** ** ** ** DAYS WITH SKY CLEAR (0-2)/8 15 15 7 6 14 24 29 31 27 18 14 5 205 DAYS WITH P.CLOUDY (3-6)/8 7 4 9 12 11 5 2 0 3 9 9 15 86 DAYS WITH CLOUDY (7-8)/8 9 9 15 12 6 1 0 0 0 4 7 11 74 DAYS WITH VISIBILITY =< 2 KM 1 2 5 2 0 0 0 0 0 0 5 6 21 DURATION OF SUNSHINE HOURS 188.9 187.3 160.8 208.9 269.1 336.3 382.8 372.5 314.4 240.4 167.9 126.3 2955.6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 821.6 820.6 816.6 819.7 822.8 820.5 818.9 820.8 822.4 824.5 822.8 820.2 821.0 MAX. QFE PRESSURE IN HPA 827.0 827.0 827.0 826.0 826.5 825.2 822.7 823.7 826.7 829.6 830.8 824.0 830.8 DAY 12 17 11 24 13 8 26 11 19 9 8 28 MIN. QFE PRESSURE IN HPA 810.0 812.0 808.6 810.8 813.8 815.3 816.0 817.0 818.2 819.8 820.0 811.8 808.6 DAY 16 5 19 10 4 30 16 5 12 2 25 10 MEAN QNH PRESSURE IN HPA 1005.4 1004.1 999.5 1003.1 1006.8 1004.0 1002.2 1004.4 1006.3 1008.7 1006.8 1003.7 1004.6 MAX. QNH PRESSURE IN HPA 1011.7 1011.7 1011.7 1010.5 1011.1 1009.6 1006.7 1007.8 1011.4 1014.8 1016.2 1008.2 1016.2 DAY 12 17 11 24 13 8 26 11 19 9 8 28 MIN. QNH PRESSURE IN HPA 991.7 994.0 990.0 992.6 996.2 997.9 998.8 999.9 1001.4 1003.2 1003.5 993.8 990.0 DAY 16 5 19 10 4 30 16 5 12 2 25 10 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 822.2 821.5 817.4 820.3 823.5 821.0 819.2 821.3 823.0 825.2 823.4 820.7 821.6 MAX. QFE PRESSURE IN HPA 827.3 827.4 827.0 826.4 827.3 825.4 822.9 824.3 827.4 830.7 831.0 824.8 831.0 DAY 12 16 11 24 16 8 26 11 19 9 8 27 MIN. QFE PRESSURE IN HPA 811.8 813.4 809.1 811.0 814.0 815.9 816.2 818.0 818.9 820.8 820.0 811.5 809.1 DAY 16 5 19 9 4 24 16 5 3 2 25 9 MEAN QNH PRESSURE IN HPA 1006.0 1005.2 1000.4 1003.8 1007.6 1004.7 1002.6 1005.0 1007.0 1009.6 1007.4 1004.3 1005.3 MAX. QNH PRESSURE IN HPA 1012.1 1012.2 1011.7 1011.0 1012.1 1009.8 1006.9 1008.5 1012.2 1016.1 1016.4 1009.1 1016.4 DAY 12 16 11 24 16 8 26 11 19 9 8 27 MIN. QNH PRESSURE IN HPA 993.8 995.7 990.6 992.9 996.4 998.6 999.0 1001.1 1002.2 1004.4 1003.5 993.5 990.6 DAY 16 5 19 9 4 24 16 5 3 2 25 9 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 821.2 821.1 816.9 820.0 823.0 820.6 818.8 821.0 822.5 824.5 822.6 820.2 821.0 MAX. QFE PRESSURE IN HPA 826.4 827.2 826.0 826.0 826.8 825.0 822.0 824.0 826.5 829.7 830.0 825.1 830.0 DAY 11 16 11 23 12 8 26 11 19 9 8 27 MIN. QFE PRESSURE IN HPA 811.8 815.0 808.1 811.2 813.8 815.1 816.1 817.7 818.2 819.8 818.1 810.6 808.1 DAY 16 22 19 9 4 24 11 5 12 2 30 9 MEAN QNH PRESSURE IN HPA 1004.9 1004.7 999.8 1003.5 1007.0 1004.2 1002.1 1004.7 1006.5 1008.8 1006.6 1003.7 1004.7 MAX. QNH PRESSURE IN HPA 1011.0 1012.0 1010.5 1010.5 1011.5 1009.4 1005.8 1008.2 1011.1 1014.9 1015.2 1009.5 1015.2 DAY 11 16 11 23 12 8 26 11 19 9 8 27 MIN. QNH PRESSURE IN HPA 993.8 997.6 989.5 993.1 996.2 997.7 998.9 1000.8 1001.4 1003.2 1001.2 992.4 989.5 DAY 16 22 19 9 4 24 11 5 12 2 30 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 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 SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** -1.7 4.3 12.2 17.3 25.3 26.7 28.1 22.5 16.6 12.0 7.4 ***** MINIMUN AIR TEMPERATURE (C) -4.5 -4.2 1.7 8.7 13.0 20.6 22.1 23.2 18.4 12.6 9.1 4.8 10.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 15 21 28 5 0 0 0 69 DAYS WITH MINIMUM TEMP. <=-4 21 16 1 0 0 0 0 0 0 0 0 0 38 DAYS WITH FREEZING MIN.<= 0 31 24 10 0 0 0 0 0 0 0 0 0 65 TEMPERATURE RECORDS LOWEST(C) -7.8 -10.0 -4.0 2.2 7.0 15.0 15.6 20.0 13.6 7.8 5.6 1.6 -10.0 DAY 10 10 18 1 2 4 29 3 26 31 12 19 MAXIMUM AIR TEMPERATURE (C) 0.1 1.0 7.5 16.6 21.9 30.3 32.1 33.3 27.6 22.1 15.9 10.8 18.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 19 28 28 8 0 0 0 83 DAYS WITH MAXIMUM TEMP. <= 0 17 13 2 0 0 0 0 0 0 0 0 0 32 TEMPERATURE RECORDS HIGHEST(C) 4.8 7.4 13.0 26.0 29.4 35.2 35.8 38.2 33.2 27.0 20.0 18.0 38.2 DAY 17 24 12 15 9 23 17 29 1 6 21 10 DIF. BETWEEN (MAX.-MIN.) (C) 4.6 5.2 5.8 7.9 8.9 9.7 10.0 10.1 9.2 9.5 6.8 6.0 7.8 MEAN DAILY TEMP. (MDT) (C) -2.2 -1.6 4.6 12.7 17.5 25.5 27.1 28.3 23.0 17.3 12.5 7.8 14.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 15.7 134.9 188.8 225.3 69.8 0.2 0.0 0.0 634.7 HEATING DEG. DAYS(BASE 18 0C) 626.5 547.9 414.9 165.5 62.9 0.0 0.0 0.0 0.0 46.2 164.9 315.4 2344.2 DEWPOINT (MEAN C) ***** -9.8 -3.8 0.2 3.2 4.3 10.1 6.2 4.5 2.4 1.3 -2.1 ***** MIXING RATIO (G/KG) ****** 2.29 3.55 4.72 5.80 6.35 9.49 7.20 6.40 5.46 5.08 3.94 ****** VAPOUR PRESSURE (HPA) ****** 3.07 4.77 6.34 7.79 8.51 12.62 9.64 8.59 7.32 6.83 5.34 ****** SATURATION DEF. (HPA) ****** 2.48 3.78 8.55 12.76 24.63 23.17 29.23 19.34 12.06 7.40 5.19 ****** RELATIVE HUMIDITY (MEAN %) *** 56 57 46 41 27 37 26 32 40 50 54 *** RELATIVE HUMIDITY (MAX. %) 71 65 70 58 54 34 47 33 41 50 62 67 54 RELATIVE HUMIDITY (MIN. %) 59 49 45 35 30 20 28 20 24 32 38 41 35 RELATIVE HUMIDITY (MEAN% 03UTC) *** *** 64 52 50 32 44 31 39 47 56 62 *** RELATIVE HUMIDITY (MEAN% 09UTC) 63 55 54 42 37 26 37 26 31 37 48 51 42 RELATIVE HUMIDITY (MEAN% 15UTC) *** 54 54 41 35 23 30 21 27 35 45 48 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 149.4 145.2 355.6 108.4 62.3 2.0 4.0 0.0 0.2 0.0 43.2 33.1 903.4 DAYS WITH PRECIPITATION >=10 5 4 9 3 2 0 0 0 0 0 1 1 25 DAYS WITH PRECIPITATION >= 5 10 8 10 6 2 0 0 0 0 0 3 2 41 DAYS WITH PRECIPITATION >= 1 17 13 14 9 4 1 2 0 0 0 5 4 69 DAYS WITH PRECIPITATION 19 15 17 12 9 1 2 0 1 0 5 6 87 GREATEST DAILY PRECIPITATION 40.0 37.0 132.0 50.0 31.0 2.0 2.7 0.0 0.2 0.0 26.2 19.0 132.0 DAY 25 7 17 28 14 3 29 ** 24 ** 11 30 DAY WITH THUNDER STORM 0 0 1 5 2 0 2 0 0 0 1 0 11 DAYS WITH SNOW OR SLEET 13 10 8 0 0 0 0 0 0 0 0 0 31 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) *** 360 180 180 180 360 360 360 225 360 180 180 *** PREVAILING WIND SPEED(KNOTS) **** 10.1 9.6 7.5 8.7 9.5 11.0 9.6 6.8 8.8 7.8 7.6 **** PREVAILING WIND PERCENT ***** 28.0 40.7 22.1 20.6 25.0 38.7 23.0 13.3 26.6 25.8 32.7 ***** CALMS PERCENT OF WIND ***** 42.7 41.1 50.8 39.9 33.3 38.7 65.7 45.0 49.6 53.8 49.2 ***** NO. OF WIND OBSERVATION 93 157 248 240 248 240 248 248 240 248 240 248 2698 VECTOR WIND DIRECTION (MEAN) *** 326 189 225 241 327 340 349 265 339 190 185 *** VECTOR WIND MAGNITUDE(KNOTS) **** 2.7 3.9 1.1 0.9 3.3 3.9 2.0 1.5 1.9 1.9 1.9 **** WIND STEADINESES (MEAN %) ***** 50.9 73.6 27.5 18.4 55.9 59.1 66.7 42.9 50.0 59.4 51.4 ***** WIND SPEED (MEAN KNOTS) **** 5.3 5.3 4.0 4.9 5.9 6.6 3.0 3.5 3.8 3.2 3.7 **** FASTEST WIND DIRECTION *** 270 160 360 180 360 320 360 210 330 180 180 *** FASTEST WIND SPEED (KNOTS) *** 25 31 27 27 23 29 23 16 27 25 31 *** DAY ** 7 16 5 20 30 19 7 7 10 10 10 DAYS WITH SKY CLEAR (0-2)/8 5 7 8 8 10 29 29 30 29 26 17 10 208 DAYS WITH P.CLOUDY (3-6)/8 12 10 11 16 20 1 2 1 1 5 12 18 109 DAYS WITH CLOUDY (7-8)/8 14 11 12 6 1 0 0 0 0 0 1 3 48 DAYS WITH VISIBILITY =< 2 KM 5 1 3 0 0 0 0 0 0 0 1 0 10 DURATION OF SUNSHINE HOURS 94.6 117.2 168.9 235.4 322.3 389.1 371.0 367.9 321.6 291.6 215.9 168.4 3063.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** 836.9 841.2 842.4 842.8 842.2 839.9 842.0 843.1 842.5 844.2 847.9 ****** MAX. QFE PRESSURE IN HPA ****** 852.6 848.0 852.8 850.0 847.0 845.9 845.0 848.0 848.0 850.3 854.2 ****** DAY-HOUR **-** 23- 9 22- 9 12- 9 8- 9 17- 6 20- 6 2- 6 19- 9 13- 6 27- 6 9- 3 MIN. QFE PRESSURE IN HPA ****** 808.8 832.0 835.0 837.0 837.0 835.0 839.0 838.7 836.8 838.3 841.8 ****** DAY-HOUR **-** 8- 6 17- 6 21-15 21- 3 30-15 5- 3 13- 3 4-15 1-15 9-15 23-18 MEAN QNH PRESSURE IN HPA ****** 1023.4 1028.5 1029.8 1030.3 1029.6 1026.8 1029.4 1030.6 1029.9 1032.0 1036.3 ****** MAX. QNH PRESSURE IN HPA ****** 1041.9 1036.4 1042.1 1038.8 1035.3 1034.0 1032.9 1036.4 1036.4 1039.1 1043.7 ****** DAY-HOUR **-** 23- 9 22- 9 12- 9 8- 9 17- 6 20- 6 2- 6 19- 9 13- 6 27- 6 9- 3 MIN. QNH PRESSURE IN HPA ****** 990.3 1017.6 1021.1 1023.5 1023.5 1021.1 1025.8 1025.5 1023.3 1025.0 1029.1 ****** DAY-HOUR **-** 8- 6 17- 6 21-15 21- 3 30-15 5- 3 13- 3 4-15 1-15 9-15 23-18 MEAN QFF PRESSURE IN HPA ****** ****** 1028.6 1024.3 1021.2 1015.2 1011.2 1013.2 1018.0 1021.3 1026.5 1034.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1039.4 1033.1 1032.4 1022.3 1018.2 1018.0 1026.3 1028.5 1034.6 1044.7 ****** DAY-HOUR **-** **-** 21-21 12- 6 4- 0 17- 6 29- 0 3- 6 26- 6 13- 6 26-18 29- 6 MIN. QFF PRESSURE IN HPA ****** ****** 1014.2 1015.4 1011.0 1009.3 1004.9 1008.7 1010.6 1012.7 1017.2 1023.7 ****** DAY-HOUR **-** **-** 17- 6 21- 9 29- 0 23-21 5- 3 12-15 1- 0 1-15 9-12 17- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 841.2 842.3 842.6 842.0 839.8 842.0 843.1 842.4 844.1 847.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** 847.4 851.8 848.5 846.0 844.6 844.6 846.9 847.0 849.8 853.6 ****** DAY ** ** 22 12 8 17 20 3 19 14 27 9 MIN. QFE PRESSURE IN HPA ****** ****** 834.0 835.8 837.4 839.5 835.6 839.8 839.0 838.2 839.0 841.8 ****** DAY ** ** 30 24 29 27 5 13 5 2 10 24 MEAN QNH PRESSURE IN HPA ****** ****** 1028.5 1029.7 1030.0 1029.4 1026.8 1029.4 1030.6 1029.8 1031.9 1036.3 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1035.7 1040.9 1037.0 1034.1 1032.4 1032.4 1035.1 1035.3 1038.6 1043.0 ****** DAY ** ** 22 12 8 17 20 3 19 14 27 9 MIN. QNH PRESSURE IN HPA ****** ****** 1020.0 1022.1 1024.0 1026.4 1021.8 1026.8 1025.8 1024.9 1025.8 1029.1 ****** DAY ** ** 30 24 29 27 5 13 5 2 10 24 MEAN QFF PRESSURE IN HPA ****** ****** 1028.3 1023.9 1021.0 1014.8 1010.9 1012.7 1017.5 1020.6 1025.9 1033.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1039.3 1032.0 1032.4 1020.2 1018.2 1016.4 1024.5 1026.1 1032.0 1043.4 ****** DAY ** ** 22 12 4 4 29 2 27 10 27 29 MIN. QFF PRESSURE IN HPA ****** ****** 1017.6 1015.9 1011.0 1009.6 1005.1 1009.0 1010.6 1013.9 1018.2 1024.0 ****** DAY ** ** 30 18 29 24 5 13 1 2 10 17 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 840.8 842.0 842.4 842.0 839.8 842.0 843.0 842.3 844.0 847.8 ****** MAX. QFE PRESSURE IN HPA ****** ****** 846.6 851.4 848.5 846.0 845.0 844.0 847.0 846.8 849.5 854.2 ****** DAY ** ** 22 12 8 17 20 2 19 14 27 9 MIN. QFE PRESSURE IN HPA ****** ****** 832.2 835.8 837.0 839.0 835.0 839.0 839.0 838.6 839.0 842.0 ****** DAY ** ** 17 22 21 24 5 13 5 2 10 24 MEAN QNH PRESSURE IN HPA ****** ****** 1028.0 1029.4 1029.8 1029.4 1026.7 1029.4 1030.6 1029.8 1031.7 1036.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1034.8 1040.4 1037.0 1034.1 1032.9 1031.7 1035.3 1035.0 1038.2 1043.7 ****** DAY ** ** 22 12 8 17 20 2 19 14 27 9 MIN. QNH PRESSURE IN HPA ****** ****** 1017.8 1022.1 1023.5 1025.8 1021.1 1025.8 1025.8 1025.4 1025.8 1029.4 ****** DAY ** ** 17 22 21 24 5 13 5 2 10 24 MEAN QFF PRESSURE IN HPA ****** ****** 1028.4 1024.2 1021.3 1015.4 1011.3 1013.5 1018.3 1021.6 1026.7 1034.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1038.8 1032.0 1030.8 1021.0 1017.3 1017.7 1025.5 1027.2 1032.5 1043.7 ****** DAY ** ** 22 1 4 17 29 3 26 10 27 29 MIN. QFF PRESSURE IN HPA ****** ****** 1014.7 1016.7 1011.3 1009.4 1004.9 1008.7 1012.0 1015.6 1019.0 1023.7 ****** DAY ** ** 17 21 29 24 5 13 1 8 10 17 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 817.3 831.5 841.2 842.8 843.3 842.9 840.4 842.6 843.6 843.0 844.5 848.7 840.2 MAX. QFE PRESSURE IN HPA 824.1 852.4 847.0 852.2 849.7 847.0 845.9 845.0 847.8 848.0 850.3 854.0 854.0 DAY 22 23 22 12 8 17 20 2 19 13 27 29 MIN. QFE PRESSURE IN HPA 808.8 808.8 832.0 836.4 837.2 839.7 835.4 839.7 839.7 838.9 839.7 843.7 808.8 DAY 12 8 17 21 21 24 5 13 5 1 9 21 MEAN QNH PRESSURE IN HPA 1000.3 1017.1 1028.5 1030.4 1031.0 1030.4 1027.5 1030.1 1031.3 1030.6 1032.3 1037.3 1027.2 MAX. QNH PRESSURE IN HPA 1008.3 1041.6 1035.3 1041.4 1038.4 1035.3 1034.0 1032.9 1036.2 1036.4 1039.1 1043.5 1043.5 DAY 22 23 22 12 8 17 20 2 19 13 27 29 MIN. QNH PRESSURE IN HPA 990.3 990.3 1017.6 1022.8 1023.7 1026.7 1021.6 1026.7 1026.7 1025.7 1026.7 1031.4 990.3 DAY 12 8 17 21 21 24 5 13 5 1 9 21 MEAN QFF PRESSURE IN HPA ****** ****** 1028.9 1025.3 1022.1 1016.4 1012.2 1014.4 1019.1 1022.5 1027.2 1035.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1038.2 1033.1 1031.5 1022.3 1017.8 1018.0 1026.3 1028.5 1033.9 1044.7 ****** DAY ** ** 22 12 4 17 20 3 26 13 27 29 MIN. QFF PRESSURE IN HPA ****** ****** 1014.2 1016.3 1012.2 1009.9 1005.1 1010.6 1012.8 1014.2 1019.2 1027.5 ****** DAY ** ** 17 21 29 24 5 13 1 1 9 17 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 818.2 832.5 841.7 843.0 843.5 843.0 840.5 842.8 843.8 843.3 844.7 848.3 840.4 MAX. QFE PRESSURE IN HPA 825.3 852.6 848.0 852.8 850.0 847.0 845.6 845.0 848.0 848.0 849.4 853.3 853.3 DAY 22 23 22 12 8 20 20 2 19 13 27 29 MIN. QFE PRESSURE IN HPA 809.0 810.7 833.0 835.9 837.3 839.8 835.7 839.8 839.8 838.8 839.5 843.5 809.0 DAY 12 8 17 21 21 24 5 23 5 1 10 24 MEAN QNH PRESSURE IN HPA 1001.4 1018.2 1029.1 1030.6 1031.1 1030.5 1027.6 1030.3 1031.5 1030.9 1032.6 1036.8 1027.5 MAX. QNH PRESSURE IN HPA 1009.7 1041.9 1036.4 1042.1 1038.8 1035.3 1033.6 1032.9 1036.4 1036.4 1038.1 1042.7 1042.7 DAY 22 23 22 12 8 20 20 2 19 13 27 29 MIN. QNH PRESSURE IN HPA 990.5 992.5 1018.8 1022.2 1023.8 1026.8 1022.0 1026.8 1026.8 1025.6 1026.4 1031.1 990.5 DAY 12 8 17 21 21 24 5 23 5 1 10 24 MEAN QFF PRESSURE IN HPA ****** ****** 1029.0 1024.8 1021.6 1015.7 1011.7 1013.8 1018.5 1021.7 1026.8 1034.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1038.2 1033.1 1031.4 1021.4 1017.0 1017.7 1025.8 1028.5 1032.1 1043.7 ****** DAY ** ** 21 12 4 17 20 2 26 25 27 29 MIN. QFF PRESSURE IN HPA ****** ****** 1016.9 1015.4 1014.0 1009.9 1005.5 1009.5 1011.9 1013.5 1019.6 1026.3 ****** DAY ** ** 17 21 29 24 5 16 1 1 10 17 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 817.6 831.8 841.1 842.4 843.0 842.3 839.9 842.0 842.9 842.3 844.0 847.3 839.7 MAX. QFE PRESSURE IN HPA 824.0 852.0 847.4 851.7 849.6 846.4 844.7 844.2 846.6 847.0 849.0 851.8 852.0 DAY 22 22 22 12 8 20 20 19 19 13 26 9 MIN. QFE PRESSURE IN HPA 808.0 811.0 833.0 835.2 837.7 838.4 835.4 839.5 839.0 837.6 838.5 842.5 808.0 DAY 12 7 17 21 21 30 5 13 4 1 9 23 MEAN QNH PRESSURE IN HPA 1000.6 1017.3 1028.4 1029.9 1030.6 1029.8 1026.9 1029.4 1030.4 1029.7 1031.7 1035.6 1026.7 MAX. QNH PRESSURE IN HPA 1008.2 1041.1 1035.7 1040.8 1038.3 1034.6 1032.6 1032.0 1034.8 1035.3 1037.6 1040.9 1041.1 DAY 22 22 22 12 8 20 20 19 19 13 26 9 MIN. QNH PRESSURE IN HPA 989.3 992.9 1018.8 1021.4 1024.3 1025.1 1021.6 1026.4 1025.8 1024.2 1025.3 1030.0 989.3 DAY 12 7 17 21 21 30 5 13 4 1 9 23 MEAN QFF PRESSURE IN HPA ****** ****** 1028.2 1024.0 1021.4 1015.0 1010.8 1012.6 1017.3 1020.5 1025.7 1033.0 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1038.1 1031.8 1030.7 1019.6 1015.5 1015.8 1024.2 1026.5 1032.1 1040.8 ****** DAY ** ** 21 6 3 17 25 3 26 9 26 28 MIN. QFF PRESSURE IN HPA ****** ****** 1016.0 1015.4 1013.7 1010.2 1005.7 1008.7 1011.0 1012.7 1017.2 1025.7 ****** DAY ** ** 29 17 29 26 5 13 1 1 9 17 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** 842.4 840.9 841.9 842.4 841.6 839.2 841.4 842.4 841.9 843.9 847.6 ****** MAX. QFE PRESSURE IN HPA ****** 851.5 846.3 850.7 848.8 845.6 843.4 843.3 845.8 846.7 849.6 852.0 ****** DAY ** 22 27 12 8 20 20 19 19 13 26 28 MIN. QFE PRESSURE IN HPA ****** 834.0 833.0 835.0 837.7 837.0 835.2 839.1 838.7 836.8 838.3 842.1 ****** DAY ** 14 29 21 21 30 4 13 4 1 9 23 MEAN QNH PRESSURE IN HPA ****** 1029.9 1028.1 1029.3 1029.8 1028.9 1026.0 1028.6 1029.9 1029.2 1031.6 1035.9 ****** MAX. QNH PRESSURE IN HPA ****** 1040.6 1034.4 1039.6 1037.4 1033.6 1031.0 1030.9 1033.8 1034.9 1038.3 1041.1 ****** DAY ** 22 27 12 8 20 20 19 19 13 26 28 MIN. QNH PRESSURE IN HPA ****** 1020.0 1018.8 1021.1 1024.3 1023.5 1021.4 1026.0 1025.5 1023.3 1025.0 1029.5 ****** DAY ** 14 29 21 21 30 4 13 4 1 9 23 MEAN QFF PRESSURE IN HPA ****** ****** 1028.4 1023.9 1021.1 1014.8 1010.5 1012.6 1017.7 1021.1 1026.6 1034.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1038.1 1031.4 1030.3 1019.3 1015.4 1016.1 1023.3 1027.4 1033.6 1042.5 ****** DAY ** ** 21 1 3 3 21 6 26 9 26 28 MIN. QFF PRESSURE IN HPA ****** ****** 1015.2 1015.5 1013.2 1009.7 1005.4 1008.7 1011.4 1012.7 1017.9 1027.0 ****** DAY ** ** 29 21 29 30 4 12 1 1 9 17 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** 842.7 841.3 842.2 842.4 841.7 839.4 841.4 842.8 842.3 844.2 848.0 ****** MAX. QFE PRESSURE IN HPA ****** 851.9 847.0 850.8 848.4 845.6 845.3 843.2 846.0 847.0 850.0 852.8 ****** DAY ** 22 21 11 8 16 19 28 18 13 26 28 MIN. QFE PRESSURE IN HPA ****** 834.0 833.0 836.0 837.9 837.0 835.2 839.4 839.0 837.6 838.9 841.8 ****** DAY ** 14 29 21 21 30 4 22 4 1 9 23 MEAN QNH PRESSURE IN HPA ****** 1030.2 1028.5 1029.7 1029.8 1029.0 1026.3 1028.7 1030.3 1029.7 1032.0 1036.4 ****** MAX. QNH PRESSURE IN HPA ****** 1041.0 1035.3 1039.7 1036.9 1033.6 1033.3 1030.8 1034.1 1035.3 1038.8 1042.1 ****** DAY ** 22 21 11 8 16 19 28 18 13 26 28 MIN. QNH PRESSURE IN HPA ****** 1020.0 1018.8 1022.3 1024.6 1023.5 1021.4 1026.3 1025.8 1024.2 1025.7 1029.1 ****** DAY ** 14 29 21 21 30 4 22 4 1 9 23 MEAN QFF PRESSURE IN HPA ****** 1035.7 1028.9 1024.5 1021.0 1015.1 1011.1 1013.0 1018.2 1021.7 1027.0 1035.1 ****** MAX. QFF PRESSURE IN HPA ****** 1046.7 1039.3 1032.1 1030.0 1019.6 1017.0 1016.2 1024.8 1028.3 1034.6 1043.3 ****** DAY ** 22 21 11 3 5 19 6 26 9 26 28 MIN. QFF PRESSURE IN HPA ****** 1025.2 1016.1 1017.1 1012.7 1010.0 1005.4 1009.8 1012.6 1013.3 1018.0 1028.6 ****** DAY ** 14 29 21 28 30 4 12 3 1 9 23 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** 842.8 841.6 842.5 842.7 842.1 840.0 842.0 843.1 842.6 844.4 847.9 ****** MAX. QFE PRESSURE IN HPA ****** 852.3 847.6 851.4 848.6 846.0 845.0 844.6 846.5 847.3 850.0 853.1 ****** DAY ** 22 21 11 8 16 19 2 18 13 26 28 MIN. QFE PRESSURE IN HPA ****** 834.0 834.0 836.1 838.0 838.0 835.6 839.8 839.4 838.0 839.0 841.8 ****** DAY ** 14 29 23 20 30 4 12 4 1 9 23 MEAN QNH PRESSURE IN HPA ****** 1030.3 1028.9 1030.0 1030.2 1029.5 1027.0 1029.4 1030.6 1030.1 1032.2 1036.4 ****** MAX. QNH PRESSURE IN HPA ****** 1041.5 1036.0 1040.4 1037.1 1034.1 1032.9 1032.4 1034.7 1035.6 1038.8 1042.4 ****** DAY ** 22 21 11 8 16 19 2 18 13 26 28 MIN. QNH PRESSURE IN HPA ****** 1020.0 1020.0 1022.4 1024.7 1024.7 1021.8 1026.8 1026.3 1024.7 1025.8 1029.1 ****** DAY ** 14 29 23 20 30 4 12 4 1 9 23 MEAN QFF PRESSURE IN HPA ****** 1035.2 1028.8 1024.1 1020.7 1014.8 1011.3 1013.1 1017.8 1021.0 1026.4 1034.2 ****** MAX. QFF PRESSURE IN HPA ****** 1047.0 1039.4 1032.2 1030.3 1019.4 1016.3 1017.5 1025.0 1026.5 1033.1 1043.1 ****** DAY ** 22 21 11 3 16 28 2 26 12 26 28 MIN. QFF PRESSURE IN HPA ****** 1025.0 1018.3 1015.9 1012.2 1009.3 1005.5 1009.0 1011.7 1012.9 1018.1 1026.4 ****** DAY ** 14 29 17 28 23 4 16 1 1 9 16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.9 3.8 6.6 13.3 20.2 25.6 27.1 29.3 23.0 17.7 7.7 5.3 15.1 MINIMUN AIR TEMPERATURE (C) 0.2 0.8 3.1 8.7 14.9 20.0 21.6 23.7 17.5 13.5 4.6 2.5 10.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 12 24 29 2 0 0 0 67 DAYS WITH MINIMUM TEMP. <=-4 0 2 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH FREEZING MIN.<= 0 15 9 4 0 0 0 0 0 0 0 4 6 38 TEMPERATURE RECORDS LOWEST(C) -2.4 -5.6 -1.4 3.4 6.8 13.0 16.2 19.2 12.2 7.4 -2.4 -1.2 -5.6 DAY 2 22 17 10 21 15 15 31 25 31 29 2 MAXIMUM AIR TEMPERATURE (C) 4.5 6.7 10.0 16.6 24.2 29.3 31.5 33.7 26.8 21.3 11.0 8.1 18.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 13 24 29 4 0 0 0 72 DAYS WITH MAXIMUM TEMP. <= 0 0 2 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS HIGHEST(C) 9.0 11.2 15.0 23.0 32.0 34.2 36.6 37.2 31.4 29.0 16.4 14.8 37.2 DAY 14 26 7 25 30 20 20 3 4 1 6 31 DIF. BETWEEN (MAX.-MIN.) (C) 4.3 5.9 6.9 7.9 9.3 9.3 9.9 10.0 9.3 7.8 6.4 5.6 7.7 MEAN DAILY TEMP. (MDT) (C) 2.3 3.8 6.5 12.7 19.6 24.6 26.5 28.7 22.1 17.4 7.8 5.3 14.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 25.5 110.1 171.6 238.6 53.0 12.1 0.0 0.0 610.9 HEATING DEG. DAYS(BASE 18 0C) 485.8 398.8 355.1 160.5 20.2 0.0 0.0 0.0 2.7 63.5 306.6 394.2 2187.4 DEWPOINT (MEAN C) -2.3 -1.4 -3.2 0.6 1.5 4.7 6.4 5.3 2.8 0.6 -1.9 -3.2 0.8 MIXING RATIO (G/KG) 3.95 4.17 3.72 4.80 5.18 6.56 7.36 6.84 5.67 4.84 4.05 3.69 5.07 VAPOUR PRESSURE (HPA) 5.32 5.62 5.00 6.46 6.96 8.77 9.81 9.16 7.62 6.53 5.47 5.00 6.81 SATURATION DEF. (HPA) 1.75 2.65 4.96 9.50 17.65 24.73 27.14 32.40 21.32 14.70 5.45 4.10 13.86 RELATIVE HUMIDITY (MEAN %) 76 71 52 45 31 28 29 23 28 34 53 57 44 RELATIVE HUMIDITY (MAX. %) 86 81 64 59 42 36 40 31 39 44 65 69 55 RELATIVE HUMIDITY (MIN. %) 64 59 42 33 21 20 21 17 21 27 42 47 35 RELATIVE HUMIDITY (MEAN% 03UTC) 80 77 59 56 37 35 38 31 38 42 62 64 52 RELATIVE HUMIDITY (MEAN% 09UTC) 75 72 51 41 28 26 26 21 25 31 50 57 42 RELATIVE HUMIDITY (MEAN% 15UTC) 72 65 47 39 27 22 22 19 22 33 49 56 39 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 96.7 191.3 68.2 51.3 2.2 0.0 0.0 0.0 0.0 8.0 48.4 67.6 533.7 DAYS WITH PRECIPITATION >=10 3 3 2 2 0 0 0 0 0 0 3 3 16 DAYS WITH PRECIPITATION >= 5 7 6 5 4 0 0 0 0 0 1 3 4 30 DAYS WITH PRECIPITATION >= 1 10 8 11 5 1 0 0 0 0 2 3 4 44 DAYS WITH PRECIPITATION 13 10 13 5 3 0 0 0 0 3 7 6 60 GREATEST DAILY PRECIPITATION 42.0 82.0 15.0 21.0 1.0 0.0 0.0 0.0 0.0 6.0 17.0 36.0 82.0 DAY 9 18 11 1 7 ** ** ** ** 31 1 16 DAY WITH THUNDER STORM 0 0 0 2 0 0 0 0 0 0 0 0 2 DAYS WITH SNOW OR SLEET 10 5 3 0 0 0 0 0 0 0 2 2 22 DAYS WITH DUST 0 0 0 0 0 0 3 0 1 0 0 0 4 WIND DIRECTION (PREVAILING) 360 180 180 180 180 180 360 360 270 225 360 360 360 PREVAILING WIND SPEED(KNOTS) 7.9 7.7 6.8 7.4 5.9 6.5 8.0 7.5 6.2 6.0 7.3 7.5 7.2 PREVAILING WIND PERCENT 24.3 33.6 20.6 33.3 29.7 31.3 43.9 27.7 22.7 17.4 24.7 16.1 18.4 CALMS PERCENT OF WIND 59.7 48.6 39.4 24.7 31.6 14.7 12.3 22.6 36.7 41.3 38.7 64.5 37.3 NO. OF WIND OBSERVATION 243 140 155 150 155 150 155 155 150 155 150 155 1913 VECTOR WIND DIRECTION (MEAN) 351 184 250 186 198 217 336 303 261 243 311 350 258 VECTOR WIND MAGNITUDE(KNOTS) 1.6 2.8 1.0 2.6 1.8 1.5 4.0 1.7 2.2 1.6 0.8 0.8 0.9 WIND STEADINESES (MEAN %) 59.3 82.4 23.8 53.1 46.2 28.8 62.5 28.8 55.0 48.5 20.0 36.4 21.4 WIND SPEED (MEAN KNOTS) 2.7 3.4 4.2 4.9 3.9 5.2 6.4 5.9 4.0 3.3 4.0 2.2 4.2 FASTEST WIND DIRECTION 360 180 350 160 190 180 340 360 220 230 210 360 180 FASTEST WIND SPEED (KNOTS) 23 27 17 21 12 12 16 23 19 16 16 19 27 DAY 2 18 2 1 8 2 6 22 1 10 25 1 DAYS WITH SKY CLEAR (0-2)/8 10 17 16 16 22 27 28 23 29 21 16 13 238 DAYS WITH P.CLOUDY (3-6)/8 12 2 7 11 8 2 3 8 1 10 10 11 85 DAYS WITH CLOUDY (7-8)/8 9 9 8 3 1 1 0 0 0 0 4 7 42 DAYS WITH VISIBILITY =< 2 KM 7 6 2 0 2 0 2 1 1 0 2 3 26 DURATION OF SUNSHINE HOURS 150.3 187.0 220.4 271.7 321.8 362.0 367.7 299.0 328.5 265.2 192.7 160.2 3126.5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 845.1 843.7 842.1 843.4 843.4 841.1 839.4 841.8 843.4 846.2 846.6 848.7 843.7 MAX. QFE PRESSURE IN HPA 854.6 852.4 848.3 849.3 850.5 846.2 842.7 848.7 848.3 849.7 851.8 854.2 854.6 DAY-HOUR 2- 6 11- 3 18- 9 11- 9 28- 6 16- 6 10- 6 20- 6 30- 6 7- 6 3- 6 5- 6 MIN. QFE PRESSURE IN HPA 834.5 830.7 835.0 833.4 836.6 834.1 834.7 837.4 839.7 840.5 839.4 839.5 830.7 DAY-HOUR 9- 3 20- 9 26-12 8- 6 20- 3 24-15 13-15 14-15 12-15 31-15 26- 3 15-12 MEAN QNH PRESSURE IN HPA 1033.0 1031.4 1029.5 1031.1 1031.1 1028.3 1026.3 1029.1 1031.0 1034.4 1034.7 1037.3 1031.4 MAX. QNH PRESSURE IN HPA 1044.2 1041.6 1036.8 1038.0 1039.4 1034.3 1030.2 1037.3 1036.8 1038.4 1040.9 1043.7 1044.2 DAY-HOUR 2- 6 11- 3 18- 9 11- 9 28- 6 16- 6 10- 6 20- 6 30- 6 7- 6 3- 6 5- 6 MIN. QNH PRESSURE IN HPA 1020.5 1016.1 1021.1 1019.3 1023.0 1020.1 1020.8 1024.0 1026.7 1027.6 1026.3 1026.4 1016.1 DAY-HOUR 9- 3 20- 9 26-12 8- 6 20- 3 24-15 13-15 14-15 12-15 31-15 26- 3 15-12 MEAN QFF PRESSURE IN HPA 1035.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1048.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 2- 6 **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA 1022.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 9- 3 **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 845.1 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 853.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 835.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 9 ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1033.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1043.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1021.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 9 ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1034.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1046.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1023.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 9 ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 844.9 843.8 842.0 843.3 843.5 841.3 839.7 842.0 843.5 846.3 846.4 848.6 843.8 MAX. QFE PRESSURE IN HPA 854.0 852.4 846.9 848.4 849.4 845.9 842.6 848.1 847.0 849.2 851.3 852.5 854.0 DAY 2 11 31 11 28 16 18 19 30 7 3 5 MIN. QFE PRESSURE IN HPA 834.5 835.0 835.8 833.6 836.6 834.4 835.9 839.1 840.8 842.1 839.4 842.4 833.6 DAY 9 20 21 8 20 25 14 7 16 31 26 14 MEAN QNH PRESSURE IN HPA 1032.8 1031.5 1029.3 1030.9 1031.1 1028.6 1026.7 1029.4 1031.2 1034.4 1034.5 1037.2 1031.5 MAX. QNH PRESSURE IN HPA 1043.5 1041.6 1035.1 1036.9 1038.1 1034.0 1030.1 1036.6 1035.3 1037.9 1040.3 1041.7 1043.5 DAY 2 11 31 11 28 16 18 19 30 7 3 5 MIN. QNH PRESSURE IN HPA 1020.5 1021.1 1022.1 1019.5 1023.0 1020.4 1022.2 1026.0 1028.0 1029.5 1026.3 1029.9 1019.5 DAY 9 20 21 8 20 25 14 7 16 31 26 14 MEAN QFF PRESSURE IN HPA 1034.9 1032.5 1028.5 1025.6 1021.3 1015.0 1011.8 1013.5 1019.4 1026.2 1033.0 1037.7 1024.9 MAX. QFF PRESSURE IN HPA 1048.1 1043.4 1036.8 1034.6 1028.9 1021.2 1016.2 1021.9 1027.1 1033.6 1042.0 1044.0 1048.1 DAY 2 11 18 10 21 16 28 20 28 27 29 5 MIN. QFF PRESSURE IN HPA 1022.9 1021.8 1020.2 1013.7 1012.6 1006.4 1004.8 1009.4 1015.2 1018.8 1025.5 1029.4 1004.8 DAY 9 20 21 8 20 25 21 4 7 4 8 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 845.7 844.3 842.7 844.0 844.1 841.8 840.3 842.6 844.2 847.1 847.3 849.5 844.5 MAX. QFE PRESSURE IN HPA 854.6 851.4 848.2 849.2 850.5 846.2 842.7 848.7 848.3 849.7 851.8 854.2 854.6 DAY 2 9 18 11 28 16 10 20 30 7 3 5 MIN. QFE PRESSURE IN HPA 835.3 833.3 836.2 833.4 838.2 835.0 836.4 839.6 840.9 842.6 841.3 842.1 833.3 DAY 9 20 26 8 20 25 14 7 12 31 26 15 MEAN QNH PRESSURE IN HPA 1033.7 1032.1 1030.2 1031.8 1031.8 1029.2 1027.3 1030.1 1032.0 1035.4 1035.6 1038.2 1032.3 MAX. QNH PRESSURE IN HPA 1044.2 1040.4 1036.7 1037.9 1039.4 1034.3 1030.2 1037.3 1036.8 1038.4 1040.9 1043.7 1044.2 DAY 2 9 18 11 28 16 10 20 30 7 3 5 MIN. QNH PRESSURE IN HPA 1021.5 1019.1 1022.5 1019.3 1024.9 1021.1 1022.8 1026.6 1028.1 1030.1 1028.6 1029.5 1019.1 DAY 9 20 26 8 20 25 14 7 12 31 26 15 MEAN QFF PRESSURE IN HPA 1036.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1048.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1023.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 9 ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 845.6 844.2 842.6 843.9 843.9 841.5 839.7 842.3 843.8 846.6 846.9 849.0 844.2 MAX. QFE PRESSURE IN HPA 853.5 851.8 848.3 849.3 850.3 845.5 842.1 848.0 848.0 849.7 851.0 853.4 853.5 DAY 2 9 18 11 28 16 9 19 30 7 3 5 MIN. QFE PRESSURE IN HPA 836.3 830.7 835.9 835.2 836.7 835.0 836.2 839.6 840.0 842.2 841.1 840.7 830.7 DAY 9 20 26 8 20 25 21 13 12 31 26 15 MEAN QNH PRESSURE IN HPA 1033.6 1032.0 1030.1 1031.6 1031.6 1028.8 1026.7 1029.7 1031.5 1034.8 1035.1 1037.6 1031.9 MAX. QNH PRESSURE IN HPA 1042.9 1040.9 1036.8 1038.0 1039.1 1033.5 1029.5 1036.4 1036.4 1038.4 1040.0 1042.8 1042.9 DAY 2 9 18 11 28 16 9 19 30 7 3 5 MIN. QNH PRESSURE IN HPA 1022.7 1016.1 1022.2 1021.4 1023.1 1021.1 1022.5 1026.6 1027.0 1029.6 1028.3 1027.8 1016.1 DAY 9 20 26 8 20 25 21 13 12 31 26 15 MEAN QFF PRESSURE IN HPA 1035.5 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1047.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1024.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 9 ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 844.6 843.1 841.6 843.2 843.1 840.7 838.7 841.2 842.8 845.6 846.0 848.1 843.2 MAX. QFE PRESSURE IN HPA 852.1 850.5 847.3 847.8 850.0 844.3 841.7 846.0 847.4 848.7 850.2 852.1 852.1 DAY 2 9 18 10 28 2 9 19 30 6 15 5 MIN. QFE PRESSURE IN HPA 835.3 830.7 835.0 836.1 837.7 834.5 835.0 838.0 839.8 840.7 840.9 839.5 830.7 DAY 9 20 26 8 20 24 21 14 12 31 26 15 MEAN QNH PRESSURE IN HPA 1032.4 1030.7 1028.9 1030.7 1030.7 1027.8 1025.5 1028.4 1030.3 1033.7 1034.1 1036.5 1030.8 MAX. QNH PRESSURE IN HPA 1041.3 1039.4 1035.6 1036.2 1038.8 1032.1 1029.0 1034.1 1035.7 1037.3 1039.0 1041.3 1041.3 DAY 2 9 18 10 28 2 9 19 30 6 15 5 MIN. QNH PRESSURE IN HPA 1021.5 1016.1 1021.1 1022.4 1024.3 1020.5 1021.1 1024.7 1026.8 1027.8 1028.1 1026.4 1016.1 DAY 9 20 26 8 20 24 21 14 12 31 26 15 MEAN QFF PRESSURE IN HPA 1034.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1045.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1024.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 9 ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 844.8 843.1 841.5 842.9 842.7 840.2 838.4 840.8 842.7 845.6 846.3 848.4 843.1 MAX. QFE PRESSURE IN HPA 852.0 850.0 847.3 847.6 849.5 844.0 841.6 846.1 847.3 848.5 850.9 852.4 852.4 DAY 2 9 18 10 28 16 9 19 30 6 15 5 MIN. QFE PRESSURE IN HPA 837.4 831.2 836.7 836.9 837.5 834.1 834.7 837.4 839.7 840.5 841.3 839.5 831.2 DAY 8 20 20 8 13 24 13 14 12 31 26 15 MEAN QNH PRESSURE IN HPA 1032.7 1030.7 1028.8 1030.4 1030.2 1027.3 1025.1 1028.0 1030.2 1033.6 1034.4 1036.9 1030.7 MAX. QNH PRESSURE IN HPA 1041.1 1038.8 1035.6 1036.0 1038.2 1031.7 1028.9 1034.2 1035.6 1037.0 1039.8 1041.6 1041.6 DAY 2 9 18 10 28 16 9 19 30 6 15 5 MIN. QNH PRESSURE IN HPA 1024.0 1016.7 1023.1 1023.4 1024.1 1020.1 1020.8 1024.0 1026.7 1027.6 1028.6 1026.4 1016.7 DAY 8 20 20 8 13 24 13 14 12 31 26 15 MEAN QFF PRESSURE IN HPA 1034.8 1031.6 1027.9 1025.0 1020.2 1013.6 1010.2 1012.2 1018.5 1025.5 1033.0 1037.2 1024.1 MAX. QFF PRESSURE IN HPA 1046.1 1040.7 1037.1 1033.6 1028.3 1019.3 1014.0 1019.2 1025.1 1032.8 1042.8 1043.4 1046.1 DAY 2 22 18 10 1 16 1 19 27 26 29 5 MIN. QFF PRESSURE IN HPA 1025.9 1020.0 1021.5 1018.1 1013.6 1005.3 1003.8 1006.9 1014.3 1018.9 1026.2 1027.6 1003.8 DAY 8 20 20 1 13 24 21 3 12 3 25 15 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 845.1 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 851.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 836.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 8 ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1033.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1040.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1023.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 8 ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1035.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1046.1 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 2 ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1025.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 8 ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 845.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 852.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 1 ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 836.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 8 ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1033.1 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1042.1 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 1 ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1022.5 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 8 ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1035.1 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1044.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 1 ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1024.5 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 8 ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -0.4 1.2 5.3 14.4 19.4 24.9 30.2 28.3 23.0 14.3 7.3 2.7 14.2 MINIMUN AIR TEMPERATURE (C) -2.8 -2.0 1.4 9.8 14.3 18.8 24.6 22.5 17.5 10.1 4.7 0.9 10.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 5 30 24 2 0 0 0 61 DAYS WITH MINIMUM TEMP. <=-4 13 7 2 0 0 0 0 0 0 0 0 0 22 DAYS WITH FREEZING MIN.<= 0 27 24 11 0 0 0 0 0 0 0 0 11 73 TEMPERATURE RECORDS LOWEST(C) -10.0 -7.6 -5.4 2.8 9.4 12.8 20.8 17.2 13.0 5.6 1.8 -2.4 -10.0 DAY 22 10 9 11 1 13 4 30 29 29 28 29 MAXIMUM AIR TEMPERATURE (C) 1.7 4.1 8.6 17.8 22.8 29.0 34.5 32.3 27.1 17.7 10.6 5.2 17.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 12 30 26 5 0 0 0 73 DAYS WITH MAXIMUM TEMP. <= 0 12 3 0 0 0 0 0 0 0 0 0 0 15 TEMPERATURE RECORDS HIGHEST(C) 16.0 11.2 15.8 23.6 28.6 34.0 38.2 36.8 32.6 24.0 15.4 10.0 38.2 DAY 1 24 29 14 25 30 17 2 9 11 12 1 DIF. BETWEEN (MAX.-MIN.) (C) 4.5 6.1 7.2 8.0 8.5 10.2 9.9 9.8 9.6 7.6 5.9 4.3 7.6 MEAN DAILY TEMP. (MDT) (C) -0.5 1.1 5.0 13.8 18.6 23.9 29.5 27.4 22.3 13.9 7.6 3.0 13.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 4.3 93.2 264.6 198.7 53.9 0.0 0.0 0.0 614.7 HEATING DEG. DAYS(BASE 18 0C) 574.5 491.5 402.2 127.6 28.3 1.4 0.0 0.0 3.5 127.4 311.0 463.9 2531.3 DEWPOINT (MEAN C) -5.4 -5.0 -3.7 2.2 2.7 3.7 6.0 5.3 2.6 1.8 -0.8 -1.9 0.6 MIXING RATIO (G/KG) 3.14 3.25 3.64 5.51 5.69 6.17 7.32 6.97 5.69 5.32 4.38 4.01 5.09 VAPOUR PRESSURE (HPA) 4.23 4.38 4.89 7.40 7.63 8.25 9.77 9.32 7.63 7.17 5.92 5.41 6.83 SATURATION DEF. (HPA) 2.02 2.45 4.39 9.45 15.52 24.11 34.08 30.02 21.18 9.65 4.46 2.10 13.29 RELATIVE HUMIDITY (MEAN %) 73 66 57 47 36 28 24 25 29 47 59 74 47 RELATIVE HUMIDITY (MAX. %) 82 78 73 60 48 38 32 34 40 59 72 86 59 RELATIVE HUMIDITY (MIN. %) 64 54 43 35 25 20 17 18 21 36 46 61 37 RELATIVE HUMIDITY (MEAN% 03UTC) 77 73 67 56 46 36 31 33 37 57 67 79 55 RELATIVE HUMIDITY (MEAN% 09UTC) 73 65 53 43 33 25 22 23 27 44 58 70 45 RELATIVE HUMIDITY (MEAN% 15UTC) 73 62 49 40 27 21 19 20 25 41 54 70 42 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 201.4 75.2 75.0 70.0 20.4 2.0 0.7 0.0 14.0 25.6 46.2 158.6 689.1 DAYS WITH PRECIPITATION >=10 5 3 4 4 1 0 0 0 0 1 1 5 24 DAYS WITH PRECIPITATION >= 5 9 5 4 5 1 0 0 0 2 2 5 9 42 DAYS WITH PRECIPITATION >= 1 13 6 7 7 4 1 0 0 3 6 7 12 66 DAYS WITH PRECIPITATION 15 9 11 8 5 1 1 0 3 7 7 17 84 GREATEST DAILY PRECIPITATION 59.0 27.0 20.0 20.0 11.0 2.0 0.7 0.0 6.0 10.0 11.3 40.0 59.0 DAY 5 25 24 9 9 1 8 ** 29 16 30 21 DAY WITH THUNDER STORM 1 0 1 2 0 0 0 0 1 1 1 2 9 DAYS WITH SNOW OR SLEET 12 9 4 0 0 0 0 0 0 0 1 16 42 DAYS WITH DUST 0 0 1 1 4 0 0 0 1 0 0 0 7 WIND DIRECTION (PREVAILING) 180 180 180 180 180 360 360 360 270 360 360 180 360 PREVAILING WIND SPEED(KNOTS) 7.8 5.8 9.4 9.6 9.9 9.3 11.3 13.2 10.0 12.4 10.9 8.6 10.4 PREVAILING WIND PERCENT 20.0 16.0 16.8 21.3 16.8 24.0 42.0 29.7 22.0 18.1 36.3 19.0 16.9 CALMS PERCENT OF WIND 51.0 61.1 45.1 39.3 45.8 34.0 15.9 16.8 24.7 39.4 37.1 60.9 40.3 NO. OF WIND OBSERVATION 155 162 173 150 155 150 157 155 150 155 240 248 2050 VECTOR WIND DIRECTION (MEAN) 199 212 220 205 230 347 9 332 270 308 357 162 305 VECTOR WIND MAGNITUDE(KNOTS) 1.3 0.8 2.2 3.2 3.4 2.6 6.7 4.2 2.5 1.4 3.9 1.2 1.1 WIND STEADINESES (MEAN %) 41.9 40.0 57.9 69.6 65.4 50.0 72.0 43.3 34.2 22.2 61.9 30.8 19.6 WIND SPEED (MEAN KNOTS) 3.1 2.0 3.8 4.6 5.2 5.2 9.3 9.7 7.3 6.3 6.3 3.9 5.6 FASTEST WIND DIRECTION 180 350 270 180 240 50 360 40 30 360 210 20 360 FASTEST WIND SPEED (KNOTS) 23 12 19 25 27 25 35 35 27 37 33 25 37 DAY 19 7 14 14 18 15 12 9 11 2 30 10 DAYS WITH SKY CLEAR (0-2)/8 10 14 18 12 22 29 20 31 25 14 15 7 217 DAYS WITH P.CLOUDY (3-6)/8 9 8 7 11 7 1 11 0 3 14 10 12 93 DAYS WITH CLOUDY (7-8)/8 12 7 6 7 2 0 0 0 2 3 5 12 56 DAYS WITH VISIBILITY =< 2 KM 10 7 5 3 2 2 3 2 0 3 4 11 52 DURATION OF SUNSHINE HOURS 126.2 180.6 226.9 222.2 314.1 380.1 352.2 366.4 306.0 256.7 200.1 112.0 3043.5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 842.5 843.9 842.8 843.7 842.6 841.0 840.8 841.9 843.1 846.3 847.6 845.4 843.5 MAX. QFE PRESSURE IN HPA 852.1 850.5 848.8 849.2 846.7 846.0 847.2 846.2 847.0 849.9 853.0 851.8 853.0 DAY-HOUR 30- 9 10- 9 27- 6 2- 6 7- 6 13- 6 30- 6 23- 6 23- 6 29- 6 17- 6 4- 6 MIN. QFE PRESSURE IN HPA 831.2 833.8 830.6 836.5 837.2 837.0 834.4 837.1 837.5 842.3 842.7 837.5 830.6 DAY-HOUR 21- 3 6-15 24- 9 9-12 19-15 26-15 10-15 30-15 2-12 25-12 30-15 21- 0 MEAN QNH PRESSURE IN HPA 1030.0 1031.6 1030.3 1031.4 1030.1 1028.2 1027.9 1029.2 1030.7 1034.4 1036.0 1033.3 1031.1 MAX. QNH PRESSURE IN HPA 1041.3 1039.4 1037.4 1037.9 1034.9 1034.1 1035.5 1034.3 1035.3 1038.7 1042.3 1040.9 1042.3 DAY-HOUR 30- 9 10- 9 27- 6 2- 6 7- 6 13- 6 30- 6 23- 6 23- 6 29- 6 17- 6 4- 6 MIN. QNH PRESSURE IN HPA 1016.7 1019.7 1016.0 1022.9 1023.7 1023.5 1020.4 1023.6 1024.1 1029.7 1030.2 1024.1 1016.0 DAY-HOUR 21- 3 6-15 24- 9 9-12 19-15 26-15 10-15 30-15 2-12 25-12 30-15 21- 0 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1034.1 1034.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1041.6 1043.5 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 17- 6 28-18 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1027.4 1026.7 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 1- 0 21- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 847.7 845.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 852.6 850.8 ****** DAY ** ** ** ** ** ** ** ** ** ** 17 18 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 844.5 837.5 ****** DAY ** ** ** ** ** ** ** ** ** ** 22 21 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1036.1 1033.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1041.9 1039.7 ****** DAY ** ** ** ** ** ** ** ** ** ** 17 18 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1032.3 1024.1 ****** DAY ** ** ** ** ** ** ** ** ** ** 22 21 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1033.6 1034.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1040.0 1042.1 ****** DAY ** ** ** ** ** ** ** ** ** ** 17 29 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1027.4 1026.7 ****** DAY ** ** ** ** ** ** ** ** ** ** 1 21 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 842.4 843.7 842.7 843.5 842.6 841.3 841.1 842.1 843.1 846.1 847.5 845.1 843.4 MAX. QFE PRESSURE IN HPA 850.4 849.4 848.1 848.5 845.5 845.5 846.5 845.3 846.3 849.2 852.6 850.6 852.6 DAY 31 11 27 2 22 13 30 8 9 29 17 4 MIN. QFE PRESSURE IN HPA 831.2 834.1 832.9 838.1 837.6 837.7 835.6 838.2 838.3 842.7 844.1 838.3 831.2 DAY 21 7 24 10 19 26 11 31 3 25 22 21 MEAN QNH PRESSURE IN HPA 1029.8 1031.4 1030.1 1031.2 1030.1 1028.5 1028.3 1029.5 1030.6 1034.3 1035.9 1033.0 1031.1 MAX. QNH PRESSURE IN HPA 1039.3 1038.1 1036.6 1037.0 1033.5 1033.5 1034.7 1033.3 1034.4 1037.9 1041.9 1039.5 1041.9 DAY 31 11 27 2 22 13 30 8 9 29 17 4 MIN. QNH PRESSURE IN HPA 1016.7 1020.1 1018.7 1024.8 1024.2 1024.3 1021.8 1024.9 1025.0 1030.2 1031.9 1025.0 1016.7 DAY 21 7 24 10 19 26 11 31 3 25 22 21 MEAN QFF PRESSURE IN HPA 1034.0 1034.8 1030.3 1024.8 1020.5 1015.4 1011.7 1014.1 1018.8 1028.2 1034.3 1034.5 1025.1 MAX. QFF PRESSURE IN HPA 1046.4 1044.3 1039.5 1032.6 1026.1 1024.6 1017.1 1019.7 1025.7 1035.2 1041.0 1042.7 1046.4 DAY 30 10 1 11 2 13 30 8 29 29 17 29 MIN. QFF PRESSURE IN HPA 1019.3 1025.2 1014.9 1017.7 1014.2 1010.5 1004.6 1009.1 1012.1 1022.9 1028.3 1027.4 1004.6 DAY 21 7 24 15 26 26 11 3 3 12 1 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 843.3 844.5 843.4 844.3 843.3 841.8 841.7 842.8 843.8 847.0 848.4 845.9 844.2 MAX. QFE PRESSURE IN HPA 851.7 850.1 848.8 849.2 846.7 846.0 847.2 846.2 847.0 849.9 853.0 851.8 853.0 DAY 30 29 27 2 7 13 30 23 23 29 17 4 MIN. QFE PRESSURE IN HPA 832.9 836.6 831.9 838.8 838.4 837.9 836.6 838.6 838.8 842.8 844.9 839.4 831.9 DAY 21 7 24 21 19 26 11 30 3 25 22 15 MEAN QNH PRESSURE IN HPA 1030.9 1032.3 1031.1 1032.1 1030.9 1029.1 1029.1 1030.3 1031.5 1035.3 1036.9 1033.9 1031.9 MAX. QNH PRESSURE IN HPA 1040.8 1038.9 1037.4 1037.9 1034.9 1034.1 1035.5 1034.3 1035.3 1038.7 1042.3 1040.9 1042.3 DAY 30 29 27 2 7 13 30 23 23 29 17 4 MIN. QNH PRESSURE IN HPA 1018.7 1023.0 1017.5 1025.6 1025.1 1024.6 1023.0 1025.4 1025.6 1030.3 1032.8 1026.3 1017.5 DAY 21 7 24 21 19 26 11 30 3 25 22 15 MEAN QFF PRESSURE IN HPA ****** 1034.1 1032.5 ****** ****** ****** ****** ****** ****** ****** 1035.6 1035.6 ****** MAX. QFF PRESSURE IN HPA ****** 1043.9 1039.2 ****** ****** ****** ****** ****** ****** ****** 1041.6 1043.4 ****** DAY ** 29 3 ** ** ** ** ** ** ** 17 29 MIN. QFF PRESSURE IN HPA ****** 1028.8 1023.0 ****** ****** ****** ****** ****** ****** ****** 1030.5 1028.6 ****** DAY ** 14 8 ** ** ** ** ** ** ** 13 15 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 842.7 844.4 843.3 844.3 843.2 841.4 841.3 842.3 843.6 846.7 848.0 845.8 843.9 MAX. QFE PRESSURE IN HPA 852.1 850.5 848.3 848.4 846.6 845.5 846.8 845.6 847.0 849.5 852.2 851.0 852.2 DAY 30 10 3 2 6 13 30 8 23 29 17 4 MIN. QFE PRESSURE IN HPA 832.6 837.0 830.6 838.8 838.5 837.5 836.2 838.4 838.5 843.0 844.5 839.8 830.6 DAY 21 6 24 9 19 26 11 30 2 25 22 15 MEAN QNH PRESSURE IN HPA 1030.2 1032.2 1030.9 1032.1 1030.8 1028.7 1028.5 1029.8 1031.3 1034.9 1036.4 1033.9 1031.6 MAX. QNH PRESSURE IN HPA 1041.3 1039.4 1036.8 1036.9 1034.8 1033.5 1035.0 1033.6 1035.3 1038.2 1041.4 1040.0 1041.4 DAY 30 10 3 2 6 13 30 8 23 29 17 4 MIN. QNH PRESSURE IN HPA 1018.3 1023.5 1016.0 1025.6 1025.3 1024.1 1022.5 1025.1 1025.3 1030.6 1032.3 1026.8 1016.0 DAY 21 6 24 9 19 26 11 30 2 25 22 15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1034.4 1035.0 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1040.0 1042.3 ****** DAY ** ** ** ** ** ** ** ** ** ** 17 29 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1029.0 1028.8 ****** DAY ** ** ** ** ** ** ** ** ** ** 13 15 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 842.0 843.4 842.2 843.4 842.3 840.6 840.2 841.3 842.7 845.8 846.9 844.9 843.0 MAX. QFE PRESSURE IN HPA 851.3 849.8 847.5 847.1 846.3 844.6 845.8 844.8 846.2 848.2 851.2 849.8 851.3 DAY 30 10 3 1 6 13 30 8 28 5 11 17 MIN. QFE PRESSURE IN HPA 833.4 834.9 831.1 836.5 837.9 837.2 834.9 837.5 837.5 842.3 843.4 839.1 831.1 DAY 21 6 24 9 19 26 10 30 2 25 22 15 MEAN QNH PRESSURE IN HPA 1029.3 1031.1 1029.6 1031.0 1029.8 1027.7 1027.2 1028.5 1030.2 1033.8 1035.1 1032.8 1030.5 MAX. QNH PRESSURE IN HPA 1040.3 1038.6 1035.8 1035.4 1034.4 1032.4 1033.8 1032.7 1034.3 1036.7 1040.2 1038.6 1040.3 DAY 30 10 3 1 6 13 30 8 28 5 11 17 MIN. QNH PRESSURE IN HPA 1019.3 1021.0 1016.5 1022.9 1024.6 1023.7 1021.0 1024.1 1024.1 1029.7 1031.0 1026.0 1016.5 DAY 21 6 24 9 19 26 10 30 2 25 22 15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1032.7 1033.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1037.6 1041.0 ****** DAY ** ** ** ** ** ** ** ** ** ** 17 29 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1028.2 1027.5 ****** DAY ** ** ** ** ** ** ** ** ** ** 13 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 842.3 843.5 842.3 843.2 841.8 840.2 839.6 840.9 842.5 845.7 847.0 845.2 842.9 MAX. QFE PRESSURE IN HPA 851.4 850.5 847.5 846.6 844.9 844.0 844.6 844.4 846.1 848.5 851.1 850.3 851.4 DAY 30 10 3 1 6 13 30 8 28 15 11 17 MIN. QFE PRESSURE IN HPA 836.2 833.8 832.4 837.7 837.2 837.0 834.4 837.1 837.6 843.4 842.7 839.5 832.4 DAY 21 6 24 9 19 26 10 30 2 2 30 14 MEAN QNH PRESSURE IN HPA 1029.8 1031.1 1029.7 1030.8 1029.1 1027.2 1026.5 1028.1 1030.0 1033.8 1035.3 1033.1 1030.4 MAX. QNH PRESSURE IN HPA 1040.4 1039.4 1035.8 1034.8 1032.8 1031.7 1032.4 1032.2 1034.2 1037.0 1040.1 1039.1 1040.4 DAY 30 10 3 1 6 13 30 8 28 15 11 17 MIN. QNH PRESSURE IN HPA 1022.5 1019.7 1018.1 1024.3 1023.7 1023.5 1020.4 1023.6 1024.2 1031.0 1030.2 1026.4 1018.1 DAY 21 6 24 9 19 26 10 30 2 2 30 14 MEAN QFF PRESSURE IN HPA 1034.0 1034.5 1029.7 1024.4 1019.5 1014.0 1009.9 1012.8 1018.3 1027.8 1033.7 1034.8 1024.5 MAX. QFF PRESSURE IN HPA 1046.9 1045.9 1038.5 1031.4 1025.9 1023.4 1014.6 1018.6 1025.5 1034.0 1038.9 1042.7 1046.9 DAY 30 10 3 11 2 13 30 8 29 15 16 28 MIN. QFF PRESSURE IN HPA 1025.6 1022.8 1015.6 1015.0 1014.0 1009.1 1003.1 1008.5 1011.7 1023.1 1027.9 1028.2 1003.1 DAY 26 6 23 14 25 27 10 3 2 10 30 14 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** 843.8 842.8 ****** ****** ****** ****** ****** ****** ****** 847.7 845.5 ****** MAX. QFE PRESSURE IN HPA ****** 848.7 847.6 ****** ****** ****** ****** ****** ****** ****** 851.9 850.5 ****** DAY ** 29 3 ** ** ** ** ** ** ** 11 17 MIN. QFE PRESSURE IN HPA ****** 838.0 837.8 ****** ****** ****** ****** ****** ****** ****** 843.4 839.5 ****** DAY ** 13 7 ** ** ** ** ** ** ** 30 14 MEAN QNH PRESSURE IN HPA ****** 1031.5 1030.3 ****** ****** ****** ****** ****** ****** ****** 1036.1 1033.5 ****** MAX. QNH PRESSURE IN HPA ****** 1037.3 1036.0 ****** ****** ****** ****** ****** ****** ****** 1041.0 1039.4 ****** DAY ** 29 3 ** ** ** ** ** ** ** 11 17 MIN. QNH PRESSURE IN HPA ****** 1024.7 1024.4 ****** ****** ****** ****** ****** ****** ****** 1031.0 1026.4 ****** DAY ** 13 7 ** ** ** ** ** ** ** 30 14 MEAN QFF PRESSURE IN HPA ****** 1033.6 1031.7 ****** ****** ****** ****** ****** ****** ****** 1034.6 1035.2 ****** MAX. QFF PRESSURE IN HPA ****** 1041.7 1038.5 ****** ****** ****** ****** ****** ****** ****** 1039.8 1043.5 ****** DAY ** 29 3 ** ** ** ** ** ** ** 16 28 MIN. QFF PRESSURE IN HPA ****** 1026.4 1023.3 ****** ****** ****** ****** ****** ****** ****** 1028.4 1028.8 ****** DAY ** 13 7 ** ** ** ** ** ** ** 13 14 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 847.8 845.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 852.6 850.8 ****** DAY ** ** ** ** ** ** ** ** ** ** 16 17 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 844.4 837.8 ****** DAY ** ** ** ** ** ** ** ** ** ** 30 20 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1036.2 1033.4 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1041.9 1039.7 ****** DAY ** ** ** ** ** ** ** ** ** ** 16 17 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1032.2 1024.4 ****** DAY ** ** ** ** ** ** ** ** ** ** 30 20 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1034.1 1034.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1040.2 1043.1 ****** DAY ** ** ** ** ** ** ** ** ** ** 16 28 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1027.7 1026.8 ****** DAY ** ** ** ** ** ** ** ** ** ** 13 20 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.9 2.2 9.6 13.4 17.3 23.8 26.7 27.8 22.8 15.5 7.3 4.0 14.3 MINIMUN AIR TEMPERATURE (C) -1.2 -0.2 6.2 9.6 13.0 18.7 21.9 22.8 18.3 11.8 4.5 1.8 10.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 7 22 25 2 0 0 0 56 DAYS WITH MINIMUM TEMP. <=-4 6 3 0 0 0 0 0 0 0 0 3 1 13 DAYS WITH FREEZING MIN.<= 0 14 14 0 0 0 0 0 0 0 0 5 5 38 TEMPERATURE RECORDS LOWEST(C) -10.4 -6.6 0.4 4.6 7.4 14.0 14.4 19.6 14.8 4.8 -7.8 -4.0 -10.4 DAY 29 22 11 13 9 11 18 12 23 27 20 21 MAXIMUM AIR TEMPERATURE (C) 3.7 5.1 13.5 17.4 21.6 28.7 32.1 32.9 27.9 19.6 10.8 6.4 18.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 13 25 26 5 0 0 0 69 DAYS WITH MAXIMUM TEMP. <= 0 6 1 0 0 0 0 0 0 0 0 1 0 8 TEMPERATURE RECORDS HIGHEST(C) 11.0 13.0 21.2 23.6 27.6 34.0 37.0 36.6 31.0 27.0 19.0 9.2 37.0 DAY 17 28 28 2 28 25 27 1 2 5 4 29 DIF. BETWEEN (MAX.-MIN.) (C) 4.9 5.3 7.3 7.8 8.6 10.0 10.2 10.1 9.6 7.8 6.3 4.6 7.7 MEAN DAILY TEMP. (MDT) (C) 1.3 2.5 9.8 13.5 17.3 23.7 27.0 27.8 23.1 15.7 7.7 4.1 14.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 4.6 90.0 187.6 212.2 66.0 0.2 0.0 0.0 560.6 HEATING DEG. DAYS(BASE 18 0C) 519.1 435.2 252.9 135.7 51.4 0.0 0.0 0.0 0.0 94.1 310.3 430.9 2229.6 DEWPOINT (MEAN C) -5.2 -3.6 1.7 2.9 2.5 2.5 6.4 3.1 2.3 2.7 -0.6 0.3 1.2 MIXING RATIO (G/KG) 3.21 3.58 5.28 5.70 5.62 5.64 7.37 5.88 5.53 5.62 4.51 4.80 5.23 VAPOUR PRESSURE (HPA) 4.35 4.82 7.09 7.65 7.53 7.55 9.83 7.89 7.44 7.58 6.08 6.48 7.02 SATURATION DEF. (HPA) 2.44 2.49 5.23 8.21 12.81 22.75 26.18 30.30 20.89 10.65 4.77 1.73 12.37 RELATIVE HUMIDITY (MEAN %) 66 69 61 53 41 26 29 22 28 46 60 79 48 RELATIVE HUMIDITY (MAX. %) 77 82 77 69 56 36 42 33 40 62 75 89 62 RELATIVE HUMIDITY (MIN. %) 54 55 44 37 28 18 20 13 19 32 45 68 36 RELATIVE HUMIDITY (MEAN% 03UTC) 72 72 70 63 50 34 40 31 38 55 67 84 56 RELATIVE HUMIDITY (MEAN% 09UTC) 62 67 56 43 36 24 27 18 23 43 56 78 44 RELATIVE HUMIDITY (MEAN% 15UTC) 63 66 54 46 33 20 22 15 22 41 54 76 43 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 53.0 99.2 127.7 46.8 26.7 0.0 3.8 0.0 13.0 53.4 85.3 276.1 785.0 DAYS WITH PRECIPITATION >=10 2 5 4 2 1 0 0 0 1 2 2 8 27 DAYS WITH PRECIPITATION >= 5 4 6 7 3 3 0 0 0 1 3 2 9 38 DAYS WITH PRECIPITATION >= 1 7 10 8 5 4 0 1 0 2 6 6 13 62 DAYS WITH PRECIPITATION 9 12 9 7 8 0 2 0 3 8 9 18 85 GREATEST DAILY PRECIPITATION 15.0 24.0 50.0 22.0 10.6 0.0 3.0 0.0 12.0 22.6 57.0 68.0 68.0 DAY 26 14 9 7 2 ** 18 ** 23 17 18 29 DAY WITH THUNDER STORM 1 4 2 3 3 0 2 0 1 1 2 2 21 DAYS WITH SNOW OR SLEET 9 11 0 0 0 0 0 0 0 0 2 5 27 DAYS WITH DUST 0 3 0 0 1 0 0 1 0 0 0 1 6 WIND DIRECTION (PREVAILING) 315 180 180 225 180 360 360 270 225 225 180 180 360 PREVAILING WIND SPEED(KNOTS) 13.0 12.2 10.5 10.2 10.7 14.6 13.4 11.0 9.0 9.8 10.8 10.4 12.2 PREVAILING WIND PERCENT 19.8 22.8 17.7 22.9 21.8 30.8 48.4 23.8 18.3 22.6 16.3 26.2 15.8 CALMS PERCENT OF WIND 53.6 48.7 46.4 40.8 30.6 20.0 12.5 29.4 32.9 25.0 45.0 48.4 36.0 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 323 185 221 206 223 334 349 284 268 260 224 191 271 VECTOR WIND MAGNITUDE(KNOTS) 2.9 0.9 2.1 4.9 4.0 4.5 7.6 3.8 3.2 2.5 1.4 3.1 1.9 WIND STEADINESES (MEAN %) 63.0 15.5 42.0 79.0 58.8 47.9 77.6 49.4 48.5 32.9 28.6 64.6 28.8 WIND SPEED (MEAN KNOTS) 4.6 5.8 5.0 6.2 6.8 9.4 9.8 7.7 6.6 7.6 4.9 4.8 6.6 FASTEST WIND DIRECTION 300 180 360 180 180 10 340 220 240 180 180 180 180 FASTEST WIND SPEED (KNOTS) 41 47 25 43 39 39 31 31 25 29 31 39 47 DAY 26 20 11 5 29 11 15 9 28 17 18 30 DAYS WITH SKY CLEAR (0-2)/8 11 8 17 12 15 30 26 31 24 18 9 5 206 DAYS WITH P.CLOUDY (3-6)/8 12 11 7 11 13 0 5 0 6 11 18 11 105 DAYS WITH CLOUDY (7-8)/8 8 9 7 7 3 0 0 0 0 2 3 15 54 DAYS WITH VISIBILITY =< 2 KM 6 10 5 3 0 0 0 0 0 1 3 11 39 DURATION OF SUNSHINE HOURS 162.2 139.1 239.8 243.9 319.6 396.6 374.8 371.1 316.3 257.7 180.3 109.5 3110.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 846.1 843.6 843.6 843.5 841.5 840.4 839.8 842.3 844.3 846.3 846.2 846.2 843.6 MAX. QFE PRESSURE IN HPA 850.5 850.2 852.1 852.1 846.0 846.8 844.3 846.4 849.1 852.2 852.6 852.4 852.6 DAY-HOUR 30- 9 12- 6 1- 6 1- 9 18- 6 2- 6 29- 6 5- 6 23- 6 9- 6 14- 9 9- 9 MIN. QFE PRESSURE IN HPA 840.8 828.6 831.7 838.5 833.2 833.2 834.9 836.8 840.0 840.2 831.0 837.0 828.6 DAY-HOUR 19-12 21- 3 25- 3 12- 3 29-15 17-15 17-15 29-12 5-15 25-15 18- 3 4-18 MEAN QNH PRESSURE IN HPA 1034.2 1031.2 1031.3 1031.2 1028.8 1027.6 1026.7 1029.7 1032.0 1034.5 1034.3 1034.4 1031.3 MAX. QNH PRESSURE IN HPA 1039.4 1039.0 1041.3 1041.3 1034.1 1035.0 1032.1 1034.6 1037.7 1041.4 1041.9 1041.6 1041.9 DAY-HOUR 30- 9 12- 6 1- 6 1- 9 18- 6 2- 6 29- 6 5- 6 23- 6 9- 6 14- 9 9- 9 MIN. QNH PRESSURE IN HPA 1028.0 1013.6 1017.3 1025.3 1019.0 1019.0 1021.0 1023.3 1027.0 1027.3 1016.4 1023.5 1013.6 DAY-HOUR 19-12 21- 3 25- 3 12- 3 29-15 17-15 17-15 29-12 5-15 25-15 18- 3 4-18 MEAN QFF PRESSURE IN HPA 1037.1 1033.0 1027.6 1024.7 1019.6 1014.2 1011.3 1013.8 1019.3 1026.7 1032.3 1034.8 1024.5 MAX. QFF PRESSURE IN HPA 1047.4 1041.2 1039.1 1033.5 1028.1 1023.5 1016.9 1019.7 1026.4 1035.4 1046.2 1044.5 1047.4 DAY-HOUR 30- 6 11- 6 1- 6 1- 6 5-12 2- 6 22- 6 21- 6 24- 6 27- 6 20- 6 22- 6 MIN. QFF PRESSURE IN HPA 1029.0 1014.2 1013.5 1018.1 1007.5 1005.1 1007.0 1007.5 1012.6 1019.3 1014.3 1021.8 1005.1 DAY-HOUR 19- 3 21- 0 24-12 25-18 29-12 17-12 17-12 29-12 5-12 6- 0 17-21 20- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 846.0 843.4 843.3 843.5 841.4 840.4 839.7 842.1 844.1 846.2 846.1 846.2 843.5 MAX. QFE PRESSURE IN HPA 849.5 849.4 849.9 850.8 845.1 845.6 842.4 845.3 848.1 850.8 851.7 851.7 851.7 DAY 31 12 1 2 17 2 29 11 24 10 15 10 MIN. QFE PRESSURE IN HPA 841.0 829.0 832.3 838.8 835.4 834.5 836.6 838.8 840.7 841.4 832.0 837.0 829.0 DAY 26 21 25 9 3 17 18 27 6 26 18 5 MEAN QNH PRESSURE IN HPA 1034.1 1031.0 1031.0 1031.1 1028.6 1027.5 1026.7 1029.5 1031.8 1034.3 1034.2 1034.4 1031.2 MAX. QNH PRESSURE IN HPA 1038.2 1038.1 1038.7 1039.7 1033.0 1033.6 1029.9 1033.3 1036.6 1039.7 1040.8 1040.8 1040.8 DAY 31 12 1 2 17 2 29 11 24 10 15 10 MIN. QNH PRESSURE IN HPA 1028.2 1014.1 1018.0 1025.6 1021.6 1020.5 1023.0 1025.6 1027.8 1028.7 1017.6 1023.5 1014.1 DAY 26 21 25 9 3 17 18 27 6 26 18 5 MEAN QFF PRESSURE IN HPA 1036.6 1032.5 1026.9 1024.4 1019.2 1013.9 1010.9 1013.1 1018.6 1026.0 1031.9 1034.6 1024.0 MAX. QFF PRESSURE IN HPA 1046.4 1039.8 1036.9 1031.3 1027.0 1022.0 1015.2 1018.2 1023.8 1032.2 1045.2 1043.5 1046.4 DAY 28 11 11 2 6 2 22 21 24 28 20 22 MIN. QFF PRESSURE IN HPA 1029.8 1014.2 1014.3 1020.0 1011.2 1005.3 1007.8 1009.9 1013.4 1019.3 1014.7 1021.8 1005.3 DAY 19 21 24 12 30 17 12 2 5 6 18 20 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 845.8 843.3 843.5 843.4 841.4 840.7 840.1 842.4 844.3 846.2 845.9 846.0 843.6 MAX. QFE PRESSURE IN HPA 848.8 849.8 850.5 851.0 845.4 845.6 843.4 845.4 848.5 851.1 851.4 851.0 851.4 DAY 9 12 1 1 17 2 28 5 23 10 2 10 MIN. QFE PRESSURE IN HPA 840.9 828.6 831.7 838.5 835.2 834.5 836.6 839.0 841.0 841.9 831.0 837.0 828.6 DAY 19 21 25 12 3 17 18 27 5 26 18 5 MEAN QNH PRESSURE IN HPA 1033.9 1030.9 1031.1 1031.0 1028.7 1027.8 1027.2 1029.8 1032.1 1034.3 1034.0 1034.0 1031.2 MAX. QNH PRESSURE IN HPA 1037.4 1038.6 1039.4 1040.0 1033.4 1033.6 1031.0 1033.4 1037.0 1040.1 1040.4 1040.0 1040.4 DAY 9 12 1 1 17 2 28 5 23 10 2 10 MIN. QNH PRESSURE IN HPA 1028.1 1013.6 1017.3 1025.3 1021.4 1020.5 1023.0 1025.8 1028.2 1029.3 1016.4 1023.5 1013.6 DAY 19 21 25 12 3 17 18 27 5 26 18 5 MEAN QFF PRESSURE IN HPA 1037.1 1033.1 1027.8 1025.0 1019.9 1014.7 1012.0 1014.2 1019.9 1026.9 1032.5 1034.7 1024.8 MAX. QFF PRESSURE IN HPA 1046.7 1040.6 1039.0 1031.9 1025.9 1022.4 1016.9 1018.7 1025.6 1033.0 1045.7 1043.6 1046.7 DAY 28 10 11 1 6 1 22 12 23 28 20 22 MIN. QFF PRESSURE IN HPA 1029.0 1017.0 1013.9 1019.8 1013.1 1005.5 1008.6 1011.0 1013.7 1019.7 1015.0 1023.1 1005.5 DAY 19 21 24 12 30 17 11 1 5 6 18 20 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 846.6 844.1 844.3 844.1 842.1 841.2 840.8 843.1 845.1 847.1 846.9 846.8 844.3 MAX. QFE PRESSURE IN HPA 849.9 850.2 852.1 851.9 846.0 846.8 844.3 846.4 849.1 852.2 852.4 851.6 852.4 DAY 30 12 1 1 18 2 29 5 23 9 2 9 MIN. QFE PRESSURE IN HPA 841.3 829.6 831.8 838.9 835.9 834.9 837.1 839.6 841.7 843.6 831.0 838.7 829.6 DAY 19 21 25 12 3 17 18 27 6 25 18 5 MEAN QNH PRESSURE IN HPA 1034.8 1031.9 1032.0 1031.9 1029.4 1028.4 1027.9 1030.7 1033.0 1035.4 1035.1 1035.1 1032.1 MAX. QNH PRESSURE IN HPA 1038.7 1039.0 1041.3 1041.0 1034.1 1035.0 1032.1 1034.6 1037.7 1041.4 1041.6 1040.7 1041.6 DAY 30 12 1 1 18 2 29 5 23 9 2 9 MIN. QNH PRESSURE IN HPA 1028.6 1014.8 1017.4 1025.7 1022.2 1021.0 1023.6 1026.6 1029.0 1031.3 1016.4 1025.5 1014.8 DAY 19 21 25 12 3 17 18 27 6 25 18 5 MEAN QFF PRESSURE IN HPA 1038.1 1034.0 1028.7 1025.6 1020.5 1015.2 1012.9 1015.0 1020.7 1027.8 1033.5 1035.7 1025.7 MAX. QFF PRESSURE IN HPA 1047.4 1041.2 1039.1 1033.5 1026.5 1023.5 1016.9 1019.7 1026.4 1035.4 1046.2 1044.5 1047.4 DAY 30 11 1 1 18 2 22 21 24 27 20 22 MIN. QFF PRESSURE IN HPA 1029.9 1018.5 1013.7 1020.1 1011.5 1006.1 1009.3 1011.9 1014.6 1019.4 1016.5 1026.0 1006.1 DAY 19 21 24 12 29 17 11 2 5 6 18 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 846.7 844.2 844.3 844.0 842.0 840.9 840.3 842.8 844.8 846.9 846.6 846.6 844.2 MAX. QFE PRESSURE IN HPA 850.5 850.0 851.5 852.1 845.9 846.3 844.0 846.1 848.6 851.7 852.6 852.4 852.6 DAY 30 12 1 1 18 3 29 5 24 9 14 9 MIN. QFE PRESSURE IN HPA 841.3 830.6 831.8 839.7 836.2 834.4 836.3 838.4 841.0 842.4 831.8 839.2 830.6 DAY 19 21 25 12 29 17 17 29 5 25 18 5 MEAN QNH PRESSURE IN HPA 1034.9 1032.0 1032.1 1031.7 1029.4 1028.1 1027.4 1030.3 1032.6 1035.1 1034.8 1034.8 1031.9 MAX. QNH PRESSURE IN HPA 1039.4 1038.8 1040.6 1041.3 1034.0 1034.4 1031.7 1034.2 1037.1 1040.8 1041.9 1041.6 1041.9 DAY 30 12 1 1 18 3 29 5 24 9 14 9 MIN. QNH PRESSURE IN HPA 1028.6 1016.0 1017.4 1026.7 1022.5 1020.4 1022.7 1025.1 1028.2 1029.9 1017.4 1026.1 1016.0 DAY 19 21 25 12 29 17 17 29 5 25 18 5 MEAN QFF PRESSURE IN HPA 1037.5 1033.6 1028.1 1025.0 1019.9 1014.4 1011.8 1014.0 1019.5 1027.0 1032.5 1035.1 1024.9 MAX. QFF PRESSURE IN HPA 1046.6 1040.5 1038.4 1033.2 1025.8 1022.5 1015.8 1018.7 1025.2 1034.3 1045.1 1043.6 1046.6 DAY 30 10 11 1 18 1 22 21 24 27 20 22 MIN. QFF PRESSURE IN HPA 1030.1 1018.6 1015.7 1020.8 1009.3 1005.3 1007.8 1009.1 1013.3 1020.0 1018.9 1026.1 1005.3 DAY 19 21 24 12 29 17 17 29 5 6 18 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 845.6 843.2 843.2 843.3 841.1 840.1 839.3 841.9 843.8 845.9 845.7 845.7 843.2 MAX. QFE PRESSURE IN HPA 849.4 848.8 850.2 851.4 844.6 845.6 842.6 844.9 847.1 850.3 851.8 851.6 851.8 DAY 30 11 1 1 13 3 29 5 23 9 14 9 MIN. QFE PRESSURE IN HPA 840.8 831.3 831.8 839.7 834.2 833.6 835.2 836.8 840.2 840.9 833.6 838.4 831.3 DAY 19 21 25 12 29 17 17 29 5 25 18 4 MEAN QNH PRESSURE IN HPA 1033.6 1030.8 1030.8 1030.9 1028.4 1027.2 1026.2 1029.2 1031.5 1034.0 1033.7 1033.7 1030.8 MAX. QNH PRESSURE IN HPA 1038.1 1037.4 1039.0 1040.4 1032.4 1033.6 1030.1 1032.8 1035.4 1039.1 1040.9 1040.7 1040.9 DAY 30 11 1 1 13 3 29 5 23 9 14 9 MIN. QNH PRESSURE IN HPA 1028.0 1016.8 1017.4 1026.7 1020.2 1019.5 1021.4 1023.3 1027.3 1028.1 1019.5 1025.1 1016.8 DAY 19 21 25 12 29 17 17 29 5 25 18 4 MEAN QFF PRESSURE IN HPA 1036.0 1032.1 1026.7 1024.1 1019.0 1013.5 1010.3 1013.0 1018.4 1025.8 1031.4 1033.8 1023.7 MAX. QFF PRESSURE IN HPA 1045.2 1040.1 1036.3 1031.9 1028.1 1021.3 1014.2 1017.5 1022.6 1032.4 1043.4 1041.6 1045.2 DAY 27 10 11 1 5 1 22 11 24 27 20 9 MIN. QFF PRESSURE IN HPA 1029.2 1020.0 1013.5 1020.9 1007.5 1005.1 1007.0 1007.5 1012.6 1019.8 1017.4 1025.3 1005.1 DAY 17 21 24 20 29 17 17 29 5 6 17 4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 845.6 843.1 843.1 843.0 840.8 839.6 838.7 841.5 843.5 845.7 845.8 845.9 843.0 MAX. QFE PRESSURE IN HPA 849.6 848.7 849.6 850.9 845.1 844.7 841.7 844.2 846.8 850.0 851.8 852.2 852.2 DAY 30 10 1 1 16 1 28 5 23 9 14 9 MIN. QFE PRESSURE IN HPA 841.3 832.9 831.8 839.7 833.2 833.2 834.9 837.7 840.0 840.2 834.7 837.4 831.8 DAY 19 21 25 25 29 17 17 29 5 25 17 4 MEAN QNH PRESSURE IN HPA 1033.7 1030.7 1030.6 1030.5 1028.0 1026.6 1025.5 1028.8 1031.1 1033.7 1033.8 1034.0 1030.6 MAX. QNH PRESSURE IN HPA 1038.3 1037.3 1038.3 1039.8 1033.0 1032.6 1029.0 1032.0 1035.0 1038.8 1040.9 1041.4 1041.4 DAY 30 10 1 1 16 1 28 5 23 9 14 9 MIN. QNH PRESSURE IN HPA 1028.6 1018.7 1017.4 1026.7 1019.0 1019.0 1021.0 1024.3 1027.0 1027.3 1020.8 1024.0 1017.4 DAY 19 21 25 25 29 17 17 29 5 25 17 4 MEAN QFF PRESSURE IN HPA 1036.9 1032.7 1027.2 1024.5 1019.2 1013.4 1010.3 1013.5 1019.0 1026.4 1032.4 1034.6 1024.2 MAX. QFF PRESSURE IN HPA 1046.6 1040.5 1036.2 1030.9 1027.0 1021.8 1014.0 1017.9 1024.1 1034.1 1044.0 1043.1 1046.6 DAY 27 10 11 1 5 1 21 21 23 27 20 9 MIN. QFF PRESSURE IN HPA 1030.0 1021.8 1013.7 1019.7 1007.6 1005.2 1007.1 1009.8 1013.2 1020.5 1018.1 1023.8 1005.2 DAY 17 20 24 25 29 16 13 1 5 6 17 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 846.2 843.6 843.8 843.5 841.5 840.3 839.5 842.2 844.2 846.4 846.3 846.4 843.6 MAX. QFE PRESSURE IN HPA 850.0 849.5 849.7 851.2 845.8 845.2 842.6 844.9 848.3 850.8 852.3 852.2 852.3 DAY 30 11 1 1 16 1 27 20 23 9 14 9 MIN. QFE PRESSURE IN HPA 841.5 832.3 834.0 839.2 835.2 834.2 836.3 838.5 841.1 841.0 834.1 837.0 832.3 DAY 25 20 25 25 29 17 17 29 5 25 17 4 MEAN QNH PRESSURE IN HPA 1034.3 1031.2 1031.4 1031.1 1028.8 1027.4 1026.4 1029.7 1032.0 1034.5 1034.4 1034.5 1031.3 MAX. QNH PRESSURE IN HPA 1038.8 1038.2 1038.4 1040.2 1033.8 1033.1 1030.1 1032.8 1036.8 1039.7 1041.5 1041.4 1041.5 DAY 30 11 1 1 16 1 27 20 23 9 14 9 MIN. QNH PRESSURE IN HPA 1028.8 1018.0 1020.0 1026.1 1021.4 1020.2 1022.7 1025.3 1028.3 1028.2 1020.1 1023.5 1018.0 DAY 25 20 25 25 29 17 17 29 5 25 17 4 MEAN QFF PRESSURE IN HPA 1037.6 1033.2 1028.0 1024.9 1020.0 1014.3 1011.4 1014.3 1019.8 1027.1 1032.8 1035.1 1024.9 MAX. QFF PRESSURE IN HPA 1046.9 1040.7 1036.7 1032.2 1026.1 1022.5 1016.0 1018.4 1026.2 1034.7 1046.0 1043.8 1046.9 DAY 27 10 10 1 5 1 21 21 23 27 19 9 MIN. QFF PRESSURE IN HPA 1030.9 1019.1 1015.1 1018.1 1008.8 1006.5 1008.1 1010.4 1014.5 1020.8 1017.0 1023.9 1006.5 DAY 3 20 23 25 29 16 11 29 4 6 17 4 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 846.2 843.7 843.7 843.7 841.7 840.6 839.8 842.4 844.4 846.5 846.1 846.5 843.8 MAX. QFE PRESSURE IN HPA 849.9 849.8 849.7 851.2 845.8 845.8 842.6 845.3 848.5 850.8 852.3 852.0 852.3 DAY 30 28 1 1 16 1 27 10 23 9 14 9 MIN. QFE PRESSURE IN HPA 841.1 830.7 833.7 839.6 836.1 835.0 837.1 839.1 841.4 841.4 832.3 837.0 830.7 DAY 25 20 24 11 29 16 10 29 5 25 17 4 MEAN QNH PRESSURE IN HPA 1034.3 1031.4 1031.3 1031.4 1029.1 1027.7 1026.8 1029.9 1032.2 1034.7 1034.2 1034.6 1031.5 MAX. QNH PRESSURE IN HPA 1038.7 1038.6 1038.4 1040.2 1033.8 1033.8 1030.1 1033.3 1037.0 1039.7 1041.5 1041.1 1041.5 DAY 30 28 1 1 16 1 27 10 23 9 14 9 MIN. QNH PRESSURE IN HPA 1028.3 1016.1 1019.6 1026.6 1022.4 1021.1 1023.6 1026.0 1028.7 1028.7 1018.0 1023.5 1016.1 DAY 25 20 24 11 29 16 10 29 5 25 17 4 MEAN QFF PRESSURE IN HPA 1036.9 1032.9 1027.3 1024.6 1019.6 1014.1 1011.2 1013.6 1019.1 1026.7 1032.0 1034.9 1024.4 MAX. QFF PRESSURE IN HPA 1046.7 1040.4 1037.4 1031.7 1025.1 1023.0 1015.8 1018.5 1025.3 1033.8 1045.5 1043.4 1046.7 DAY 27 10 10 1 5 1 21 20 23 27 19 21 MIN. QFF PRESSURE IN HPA 1030.4 1015.6 1014.4 1019.3 1010.0 1006.0 1008.3 1009.7 1014.2 1019.9 1014.3 1023.6 1006.0 DAY 3 20 23 11 29 16 11 1 4 25 17 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -0.5 3.0 7.5 9.4 16.8 22.9 26.3 25.7 23.4 18.1 8.6 -0.1 13.4 MINIMUN AIR TEMPERATURE (C) -2.8 0.3 4.4 6.6 12.4 18.3 21.7 20.7 18.6 14.4 6.2 -2.0 9.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 5 24 11 0 1 0 0 41 DAYS WITH MINIMUM TEMP. <=-4 12 2 0 0 0 0 0 0 0 0 0 9 23 DAYS WITH FREEZING MIN.<= 0 26 11 4 0 0 0 0 0 0 0 0 20 61 TEMPERATURE RECORDS LOWEST(C) -10.6 -5.8 -0.2 1.2 6.0 13.0 18.6 18.0 16.6 9.0 1.6 -9.6 -10.6 DAY 28 19 1 3 4 4 6 19 10 23 25 15 MAXIMUM AIR TEMPERATURE (C) 2.2 6.5 11.6 12.8 21.4 27.5 31.1 30.9 28.9 23.1 12.1 2.6 17.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 8 24 24 8 0 0 0 64 DAYS WITH MAXIMUM TEMP. <= 0 10 1 0 0 0 0 0 0 0 0 0 10 21 TEMPERATURE RECORDS HIGHEST(C) 8.0 11.2 18.0 18.4 28.6 32.0 33.8 35.2 32.8 28.0 17.4 10.6 35.2 DAY 1 22 11 28 28 27 23 14 3 10 8 6 DIF. BETWEEN (MAX.-MIN.) (C) 5.0 6.2 7.2 6.2 9.0 9.2 9.4 10.2 10.3 8.7 5.9 4.6 7.7 MEAN DAILY TEMP. (MDT) (C) -0.3 3.4 8.0 9.7 16.9 22.9 26.4 25.8 23.7 18.7 9.2 0.3 13.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 4.4 67.9 168.5 149.6 81.8 14.4 0.0 0.0 486.6 HEATING DEG. DAYS(BASE 18 0C) 566.6 409.0 309.6 248.4 65.0 0.0 0.0 0.0 0.0 32.2 265.0 548.7 2444.5 DEWPOINT (MEAN C) -5.0 -3.4 -1.1 4.7 3.8 4.8 7.2 4.8 1.9 3.4 0.0 -2.6 1.5 MIXING RATIO (G/KG) 3.32 3.68 4.38 6.45 6.04 6.56 7.76 6.63 5.27 5.87 4.72 3.88 5.38 VAPOUR PRESSURE (HPA) 4.48 4.96 5.88 8.64 8.10 8.78 10.36 8.86 7.10 7.91 6.37 5.22 7.22 SATURATION DEF. (HPA) 1.57 2.80 4.90 3.42 11.72 19.88 24.41 24.82 22.23 13.48 5.12 1.05 11.28 RELATIVE HUMIDITY (MEAN %) 74 65 60 74 45 32 31 28 26 41 59 84 52 RELATIVE HUMIDITY (MAX. %) 85 80 73 89 61 43 41 39 37 55 73 93 64 RELATIVE HUMIDITY (MIN. %) 62 53 47 60 30 23 22 18 16 27 45 72 40 RELATIVE HUMIDITY (MEAN% 03UTC) 78 69 66 80 59 41 41 38 36 48 65 88 59 RELATIVE HUMIDITY (MEAN% 09UTC) 74 62 53 67 39 28 28 24 20 33 54 82 47 RELATIVE HUMIDITY (MEAN% 15UTC) 70 62 56 71 35 26 24 20 19 37 55 81 46 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 252.7 110.7 189.8 221.3 22.5 0.0 0.0 0.0 0.0 26.6 53.6 324.8 1202.0 DAYS WITH PRECIPITATION >=10 6 3 6 6 1 0 0 0 0 1 2 9 34 DAYS WITH PRECIPITATION >= 5 9 5 10 13 2 0 0 0 0 1 3 11 54 DAYS WITH PRECIPITATION >= 1 11 8 13 19 4 0 0 0 0 4 5 15 79 DAYS WITH PRECIPITATION 17 9 13 22 7 1 0 0 0 6 8 17 100 GREATEST DAILY PRECIPITATION 69.0 63.0 44.3 45.0 12.0 0.0 0.0 0.0 0.0 16.0 24.8 91.7 91.7 DAY 3 12 20 7 4 ** ** ** ** 31 25 20 DAY WITH THUNDER STORM 2 2 2 7 3 0 0 0 0 1 1 4 22 DAYS WITH SNOW OR SLEET 14 4 6 2 0 0 0 0 0 0 2 15 43 DAYS WITH DUST 0 0 0 0 2 2 0 1 1 0 0 0 6 WIND DIRECTION (PREVAILING) 180 360 180 180 225 360 360 270 270 180 360 180 360 PREVAILING WIND SPEED(KNOTS) 12.3 14.3 13.2 9.8 8.8 13.7 13.2 10.2 10.0 9.5 9.4 11.6 11.6 PREVAILING WIND PERCENT 20.2 17.4 29.0 27.1 23.0 27.9 39.1 22.2 23.3 15.7 28.3 16.9 15.8 CALMS PERCENT OF WIND 45.6 39.7 28.6 23.8 31.9 13.8 17.3 26.2 43.8 53.2 37.5 46.8 34.0 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 211 283 204 210 242 296 329 286 243 215 335 218 261 VECTOR WIND MAGNITUDE(KNOTS) 1.2 1.8 3.4 4.5 2.7 4.0 5.7 3.9 3.6 2.3 2.3 1.7 2.1 WIND STEADINESES (MEAN %) 21.4 29.0 42.5 60.8 45.8 38.8 59.4 50.6 70.6 56.1 42.6 33.3 31.3 WIND SPEED (MEAN KNOTS) 5.6 6.2 8.0 7.4 5.9 10.3 9.6 7.7 5.1 4.1 5.4 5.1 6.7 FASTEST WIND DIRECTION 180 360 170 210 180 180 350 240 210 280 340 190 170 FASTEST WIND SPEED (KNOTS) 49 35 51 29 51 35 29 27 29 29 25 49 51 DAY 3 19 26 7 15 5 8 5 19 21 14 20 DAYS WITH SKY CLEAR (0-2)/8 12 13 11 2 16 25 27 31 29 15 13 0 194 DAYS WITH P.CLOUDY (3-6)/8 6 9 10 10 13 5 4 0 1 13 11 14 96 DAYS WITH CLOUDY (7-8)/8 13 6 10 18 2 0 0 0 0 3 6 17 75 DAYS WITH VISIBILITY =< 2 KM 10 6 6 10 0 0 0 0 0 2 4 14 52 DURATION OF SUNSHINE HOURS 144.0 184.1 206.1 155.9 337.7 376.5 383.5 377.8 322.3 240.6 180.6 106.0 3015.1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 844.8 846.0 843.3 841.2 842.0 841.2 841.3 840.7 845.3 847.0 847.9 843.9 843.7 MAX. QFE PRESSURE IN HPA 853.3 855.0 853.4 847.7 848.0 846.6 845.8 845.5 849.6 852.4 855.2 852.7 855.2 DAY-HOUR 27- 9 6- 6 6- 9 1- 6 17- 6 25- 6 29- 6 31- 6 21- 6 11- 6 18- 6 3- 6 MIN. QFE PRESSURE IN HPA 834.5 835.7 833.6 833.4 838.1 835.6 835.1 835.9 841.0 841.7 840.7 829.1 829.1 DAY-HOUR 7-12 26-12 22- 3 3- 3 11-15 19-12 24-12 14-12 10-12 21-12 12-12 21- 6 MEAN QNH PRESSURE IN HPA 1032.6 1034.1 1031.0 1028.5 1029.4 1028.4 1028.6 1027.8 1033.3 1035.2 1036.3 1031.6 1031.4 MAX. QNH PRESSURE IN HPA 1042.7 1044.7 1042.8 1036.1 1036.4 1034.8 1033.8 1033.5 1038.3 1041.6 1044.9 1042.0 1044.9 DAY-HOUR 27- 9 6- 6 6- 9 1- 6 17- 6 25- 6 29- 6 31- 6 21- 6 11- 6 18- 6 3- 6 MIN. QNH PRESSURE IN HPA 1020.5 1022.0 1019.5 1019.3 1024.8 1021.8 1021.3 1022.2 1028.2 1029.0 1027.8 1014.2 1014.2 DAY-HOUR 7-12 26-12 22- 3 3- 3 11-15 19-12 24-12 14-12 10-12 21-12 12-12 21- 6 MEAN QFF PRESSURE IN HPA 1036.6 1035.5 1028.8 1024.7 1020.7 1015.5 1013.4 1013.1 1020.3 1025.7 1033.4 1035.1 1025.2 MAX. QFF PRESSURE IN HPA 1049.8 1046.7 1041.8 1034.9 1029.1 1022.7 1019.7 1021.0 1026.8 1031.9 1043.4 1049.9 1049.9 DAY-HOUR 27- 9 6- 6 10- 9 1- 3 17- 6 3-21 29- 6 31- 6 21- 6 7- 6 17- 6 14- 9 MIN. QFF PRESSURE IN HPA 1019.4 1021.1 1012.6 1017.2 1012.7 1007.6 1004.9 1004.5 1015.4 1019.5 1022.2 1015.9 1004.5 DAY-HOUR 7-12 26-12 26-21 25- 0 24- 9 19- 0 24- 0 15- 0 10-12 1- 0 12- 0 20-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 844.8 845.9 843.3 840.9 841.9 840.9 841.2 840.5 845.1 846.7 847.8 843.8 843.6 MAX. QFE PRESSURE IN HPA 852.4 854.2 852.3 846.8 846.7 845.2 844.3 844.3 848.2 851.7 854.2 851.5 854.2 DAY 27 6 12 1 17 25 29 30 21 11 18 3 MIN. QFE PRESSURE IN HPA 836.8 836.6 834.6 834.4 839.0 835.7 835.4 836.2 842.2 842.9 840.8 829.9 829.9 DAY 8 12 22 3 12 19 24 15 11 30 13 21 MEAN QNH PRESSURE IN HPA 1032.7 1034.0 1030.9 1028.1 1029.3 1028.1 1028.5 1027.6 1033.0 1035.0 1036.1 1031.5 1031.2 MAX. QNH PRESSURE IN HPA 1041.6 1043.7 1041.5 1035.0 1034.9 1033.1 1032.1 1032.1 1036.7 1040.8 1043.7 1040.6 1043.7 DAY 27 6 12 1 17 25 29 30 21 11 18 3 MIN. QNH PRESSURE IN HPA 1023.3 1023.0 1020.7 1020.4 1025.8 1022.0 1021.6 1022.5 1029.6 1030.4 1028.0 1015.1 1015.1 DAY 8 12 22 3 12 19 24 15 11 30 13 21 MEAN QFF PRESSURE IN HPA 1036.2 1034.9 1028.4 1024.2 1020.3 1014.9 1013.0 1012.4 1019.4 1024.7 1032.6 1034.7 1024.6 MAX. QFF PRESSURE IN HPA 1047.6 1045.2 1039.4 1034.7 1027.2 1022.3 1017.2 1018.7 1024.3 1029.1 1041.4 1048.0 1048.0 DAY 26 2 11 1 17 4 29 31 21 27 18 14 MIN. QFF PRESSURE IN HPA 1024.5 1021.9 1018.3 1017.2 1013.6 1007.6 1004.9 1004.5 1015.7 1019.5 1022.2 1017.1 1004.5 DAY 8 25 27 25 29 19 24 15 4 1 12 21 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 844.4 845.8 843.1 840.8 842.0 841.3 841.6 840.8 845.3 846.8 847.8 843.5 843.6 MAX. QFE PRESSURE IN HPA 852.1 854.2 852.0 847.1 847.3 845.4 845.4 844.7 848.6 852.0 854.2 851.5 854.2 DAY 27 6 11 1 17 25 29 31 21 11 18 3 MIN. QFE PRESSURE IN HPA 835.9 836.6 833.6 833.4 838.7 836.0 835.4 836.5 842.4 842.8 840.8 829.5 829.5 DAY 23 12 22 3 12 19 24 15 11 21 13 21 MEAN QNH PRESSURE IN HPA 1032.2 1033.9 1030.7 1028.0 1029.4 1028.5 1028.9 1027.9 1033.2 1035.0 1036.2 1031.2 1031.3 MAX. QNH PRESSURE IN HPA 1041.3 1043.7 1041.1 1035.4 1035.6 1033.4 1033.4 1032.6 1037.1 1041.1 1043.7 1040.6 1043.7 DAY 27 6 11 1 17 25 29 31 21 11 18 3 MIN. QNH PRESSURE IN HPA 1022.2 1023.0 1019.5 1019.3 1025.5 1022.3 1021.6 1022.9 1029.9 1030.3 1028.0 1014.7 1014.7 DAY 23 12 22 3 12 19 24 15 11 21 13 21 MEAN QFF PRESSURE IN HPA 1036.3 1035.7 1029.0 1024.5 1021.1 1015.9 1014.0 1013.6 1020.8 1026.0 1033.7 1034.9 1025.5 MAX. QFF PRESSURE IN HPA 1048.0 1045.9 1040.0 1034.9 1028.3 1022.4 1019.3 1020.0 1025.3 1030.7 1042.1 1048.9 1048.9 DAY 25 6 11 1 17 4 29 31 21 11 18 14 MIN. QFF PRESSURE IN HPA 1023.1 1021.4 1019.2 1017.7 1014.1 1008.6 1005.9 1006.4 1017.1 1021.5 1022.4 1016.5 1005.9 DAY 7 12 27 25 24 19 24 15 4 4 12 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 845.3 846.8 844.0 841.5 842.6 841.8 842.1 841.4 846.1 847.7 848.8 844.3 844.4 MAX. QFE PRESSURE IN HPA 853.2 855.0 853.0 847.7 848.0 846.6 845.8 845.5 849.6 852.4 855.2 852.7 855.2 DAY 27 6 6 1 17 25 29 31 21 11 18 3 MIN. QFE PRESSURE IN HPA 836.9 837.7 834.4 833.7 839.0 836.0 835.2 837.2 842.7 842.9 842.4 829.1 829.1 DAY 23 12 22 3 24 19 24 15 10 21 13 21 MEAN QNH PRESSURE IN HPA 1033.3 1035.0 1031.7 1028.8 1030.1 1029.2 1029.5 1028.7 1034.2 1036.1 1037.3 1032.1 1032.2 MAX. QNH PRESSURE IN HPA 1042.6 1044.7 1042.3 1036.1 1036.4 1034.8 1033.8 1033.5 1038.3 1041.6 1044.9 1042.0 1044.9 DAY 27 6 6 1 17 25 29 31 21 11 18 3 MIN. QNH PRESSURE IN HPA 1023.4 1024.3 1020.4 1019.6 1025.8 1022.3 1021.4 1023.7 1030.2 1030.4 1029.9 1014.2 1014.2 DAY 23 12 22 3 24 19 24 15 10 21 13 21 MEAN QFF PRESSURE IN HPA 1037.5 1036.8 1029.9 1025.2 1021.5 1016.4 1014.6 1014.2 1021.7 1026.8 1034.7 1035.9 1026.3 MAX. QFF PRESSURE IN HPA 1049.3 1046.7 1041.4 1034.7 1029.1 1022.7 1019.7 1021.0 1026.8 1031.9 1043.4 1049.8 1049.8 DAY 27 6 6 1 17 4 29 31 21 7 17 14 MIN. QFF PRESSURE IN HPA 1024.8 1023.4 1018.7 1018.6 1013.5 1008.5 1005.4 1006.8 1018.2 1022.2 1025.6 1016.3 1005.4 DAY 7 12 26 3 24 19 24 15 7 21 12 21 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 845.2 846.7 843.9 841.6 842.4 841.6 841.8 841.0 845.8 847.4 848.3 844.1 844.2 MAX. QFE PRESSURE IN HPA 853.3 854.6 853.4 847.2 847.6 845.6 845.0 845.2 849.6 851.6 855.0 851.7 855.0 DAY 27 6 6 1 17 24 29 31 21 10 18 3 MIN. QFE PRESSURE IN HPA 837.0 838.7 835.0 833.7 838.6 836.5 835.2 837.2 841.7 841.9 841.7 829.4 829.4 DAY 7 12 22 3 24 19 24 7 10 21 12 21 MEAN QNH PRESSURE IN HPA 1033.1 1034.9 1031.6 1028.9 1029.9 1028.9 1029.1 1028.2 1033.9 1035.7 1036.8 1031.9 1031.9 MAX. QNH PRESSURE IN HPA 1042.7 1044.2 1042.8 1035.5 1036.0 1033.6 1032.9 1033.1 1038.3 1040.7 1044.7 1040.8 1044.7 DAY 27 6 6 1 17 24 29 31 21 10 18 3 MIN. QNH PRESSURE IN HPA 1023.5 1025.5 1021.1 1019.6 1025.4 1022.9 1021.4 1023.7 1029.0 1029.3 1029.0 1014.5 1014.5 DAY 7 12 22 3 24 19 24 7 10 21 12 21 MEAN QFF PRESSURE IN HPA 1036.8 1036.0 1029.0 1024.8 1020.8 1015.8 1013.7 1013.1 1020.4 1025.7 1033.7 1035.2 1025.4 MAX. QFF PRESSURE IN HPA 1049.8 1046.0 1041.8 1032.4 1028.1 1021.9 1018.0 1019.8 1025.8 1029.8 1042.3 1049.9 1049.9 DAY 27 1 10 1 17 7 29 31 21 23 17 14 MIN. QFF PRESSURE IN HPA 1023.0 1025.2 1017.6 1018.0 1012.7 1009.0 1005.0 1006.5 1016.4 1020.5 1023.6 1016.4 1005.0 DAY 7 26 26 3 24 19 24 15 10 21 12 21 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 844.2 845.3 842.9 841.2 841.6 840.9 840.9 840.2 844.9 846.4 847.2 843.4 843.3 MAX. QFE PRESSURE IN HPA 851.5 852.9 851.5 847.0 846.4 844.6 843.9 844.0 848.1 850.9 853.8 850.7 853.8 DAY 25 6 6 1 17 24 29 30 21 10 18 29 MIN. QFE PRESSURE IN HPA 834.5 835.7 833.7 833.9 838.8 835.6 835.1 835.9 841.0 841.7 840.7 829.7 829.7 DAY 7 26 20 3 15 19 24 14 10 21 12 21 MEAN QNH PRESSURE IN HPA 1031.9 1033.3 1030.4 1028.5 1029.0 1028.0 1028.0 1027.3 1032.8 1034.6 1035.5 1031.0 1030.9 MAX. QNH PRESSURE IN HPA 1040.6 1042.2 1040.6 1035.3 1034.6 1032.4 1031.6 1031.7 1036.6 1039.8 1043.3 1039.6 1043.3 DAY 25 6 6 1 17 24 29 30 21 10 18 29 MIN. QNH PRESSURE IN HPA 1020.5 1022.0 1019.6 1019.8 1025.6 1021.8 1021.3 1022.2 1028.2 1029.0 1027.8 1014.9 1014.9 DAY 7 26 20 3 15 19 24 14 10 21 12 21 MEAN QFF PRESSURE IN HPA 1035.4 1034.1 1027.8 1024.4 1019.9 1014.8 1012.6 1012.1 1019.4 1024.5 1032.2 1034.1 1024.3 MAX. QFF PRESSURE IN HPA 1047.0 1045.2 1039.5 1032.6 1026.1 1021.0 1016.9 1018.0 1023.8 1028.4 1040.8 1048.8 1048.8 DAY 25 1 10 1 17 7 29 30 21 26 17 14 MIN. QFF PRESSURE IN HPA 1019.4 1021.1 1015.7 1019.5 1013.1 1007.9 1005.3 1004.9 1015.4 1020.3 1022.3 1018.0 1004.9 DAY 7 26 26 19 19 19 24 14 10 13 12 21 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 844.4 845.4 842.8 841.0 841.4 840.4 840.4 839.9 844.8 846.6 847.4 843.7 843.2 MAX. QFE PRESSURE IN HPA 851.5 852.6 851.3 846.6 845.8 844.2 843.3 843.5 848.0 851.3 853.5 851.3 853.5 DAY 25 5 11 1 17 7 29 30 23 10 18 29 MIN. QFE PRESSURE IN HPA 835.1 836.4 835.1 834.1 838.1 835.6 835.3 835.9 841.2 842.6 840.8 829.7 829.7 DAY 7 26 26 3 11 19 24 14 10 21 12 20 MEAN QNH PRESSURE IN HPA 1032.2 1033.4 1030.3 1028.1 1028.7 1027.5 1027.5 1027.0 1032.7 1034.8 1035.7 1031.4 1030.8 MAX. QNH PRESSURE IN HPA 1040.6 1041.9 1040.3 1034.8 1033.8 1032.0 1030.9 1031.1 1036.4 1040.3 1042.9 1040.3 1042.9 DAY 25 5 11 1 17 7 29 30 23 10 18 29 MIN. QNH PRESSURE IN HPA 1021.3 1022.8 1021.3 1020.1 1024.8 1021.8 1021.5 1022.2 1028.4 1030.1 1028.0 1014.9 1014.9 DAY 7 26 26 3 11 19 24 14 10 21 12 20 MEAN QFF PRESSURE IN HPA 1036.4 1035.1 1028.4 1024.5 1020.3 1014.9 1012.6 1012.7 1020.4 1025.9 1033.3 1035.1 1025.0 MAX. QFF PRESSURE IN HPA 1048.4 1046.1 1039.3 1032.6 1026.0 1021.1 1016.8 1018.6 1024.5 1029.9 1041.7 1049.0 1049.0 DAY 25 1 10 1 16 7 29 30 28 26 17 14 MIN. QFF PRESSURE IN HPA 1019.9 1022.2 1014.9 1019.6 1013.9 1008.3 1006.4 1005.9 1017.3 1021.5 1023.3 1017.3 1005.9 DAY 7 11 26 2 28 18 24 14 10 13 12 20 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 844.9 846.2 843.4 841.6 842.1 841.1 841.2 840.7 845.4 847.3 848.0 844.1 843.8 MAX. QFE PRESSURE IN HPA 851.8 854.0 852.2 846.0 846.6 845.3 843.9 844.4 848.8 851.9 854.2 851.3 854.2 DAY 25 5 11 1 16 24 28 29 23 10 17 2 MIN. QFE PRESSURE IN HPA 836.3 837.7 834.2 834.8 839.2 836.0 836.5 836.8 841.7 843.0 841.0 830.3 830.3 DAY 7 26 26 3 19 19 23 14 10 21 12 20 MEAN QNH PRESSURE IN HPA 1032.8 1034.3 1031.1 1028.9 1029.5 1028.3 1028.4 1027.9 1033.4 1035.6 1036.4 1031.9 1031.5 MAX. QNH PRESSURE IN HPA 1040.9 1043.5 1041.4 1034.1 1034.8 1033.3 1031.6 1032.2 1037.4 1041.0 1043.7 1040.3 1043.7 DAY 25 5 11 1 16 24 28 29 23 10 17 2 MIN. QNH PRESSURE IN HPA 1022.7 1024.3 1020.2 1020.9 1026.1 1022.3 1022.9 1023.3 1029.0 1030.6 1028.2 1015.6 1015.6 DAY 7 26 26 3 19 19 23 14 10 21 12 20 MEAN QFF PRESSURE IN HPA 1037.1 1036.0 1029.2 1025.2 1021.0 1015.6 1013.6 1013.6 1021.0 1026.4 1033.9 1035.6 1025.7 MAX. QFF PRESSURE IN HPA 1048.8 1046.2 1040.5 1031.0 1027.9 1022.7 1017.6 1019.4 1025.4 1030.8 1042.7 1048.7 1048.8 DAY 25 1 6 1 16 3 29 31 20 6 17 14 MIN. QFF PRESSURE IN HPA 1023.0 1024.5 1012.7 1019.6 1013.4 1008.7 1007.7 1007.3 1017.3 1021.7 1024.9 1017.9 1007.3 DAY 7 11 26 2 28 18 23 14 10 13 11 20 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 845.0 846.1 843.6 841.4 842.3 841.4 841.5 840.8 845.4 847.1 848.0 844.1 843.9 MAX. QFE PRESSURE IN HPA 852.0 854.0 852.8 845.6 847.0 845.9 844.3 844.6 848.4 851.9 854.2 851.5 854.2 DAY 25 5 11 26 16 24 28 29 23 10 17 2 MIN. QFE PRESSURE IN HPA 836.9 836.6 834.2 834.4 839.6 836.2 836.5 836.8 841.7 842.8 841.0 829.3 829.3 DAY 7 24 26 2 19 19 23 14 10 21 12 20 MEAN QNH PRESSURE IN HPA 1032.9 1034.2 1031.2 1028.7 1029.8 1028.6 1028.8 1028.0 1033.4 1035.4 1036.4 1031.8 1031.6 MAX. QNH PRESSURE IN HPA 1041.1 1043.5 1042.1 1033.6 1035.3 1034.0 1032.1 1032.4 1036.9 1041.0 1043.7 1040.6 1043.7 DAY 25 5 11 26 16 24 28 29 23 10 17 2 MIN. QNH PRESSURE IN HPA 1023.4 1023.0 1020.2 1020.4 1026.6 1022.5 1022.9 1023.3 1029.0 1030.3 1028.2 1014.4 1014.4 DAY 7 24 26 2 19 19 23 14 10 21 12 20 MEAN QFF PRESSURE IN HPA 1036.8 1035.3 1028.7 1024.5 1020.6 1015.5 1013.4 1013.0 1019.9 1025.5 1033.4 1035.2 1025.1 MAX. QFF PRESSURE IN HPA 1048.3 1045.8 1040.1 1031.2 1027.9 1022.7 1017.2 1019.1 1024.3 1030.1 1041.8 1047.5 1048.3 DAY 25 1 6 5 16 3 28 30 20 6 17 14 MIN. QFF PRESSURE IN HPA 1025.1 1022.6 1012.6 1018.3 1013.9 1008.4 1006.0 1006.2 1016.5 1021.3 1023.8 1015.9 1006.0 DAY 7 24 26 2 28 18 23 14 10 13 11 20 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.3 0.8 3.4 11.7 17.6 22.5 26.5 27.4 21.9 17.6 7.3 1.9 13.3 MINIMUN AIR TEMPERATURE (C) -0.5 -1.1 0.7 8.1 13.5 17.9 21.8 22.7 17.6 13.7 5.0 -0.2 9.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 22 25 6 0 0 0 55 DAYS WITH MINIMUM TEMP. <=-4 5 4 2 0 0 0 0 0 0 0 0 4 15 DAYS WITH FREEZING MIN.<= 0 19 21 12 0 0 0 0 0 0 0 0 15 67 TEMPERATURE RECORDS LOWEST(C) -7.2 -5.4 -5.6 1.2 5.0 10.0 18.4 19.2 12.6 4.6 0.6 -5.6 -7.2 DAY 18 18 2 29 8 1 30 25 23 31 22 26 MAXIMUM AIR TEMPERATURE (C) 4.0 3.2 7.0 15.5 22.1 27.3 31.5 32.7 27.4 22.1 10.3 4.1 17.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 10 23 29 7 0 0 0 69 DAYS WITH MAXIMUM TEMP. <= 0 6 4 2 0 0 0 0 0 0 0 0 2 14 TEMPERATURE RECORDS HIGHEST(C) 12.4 9.4 12.6 22.6 26.4 31.4 35.4 38.2 34.4 27.2 18.0 10.2 38.2 DAY 12 8 16 5 22 28 16 11 4 8 6 17 DIF. BETWEEN (MAX.-MIN.) (C) 4.5 4.3 6.3 7.4 8.6 9.4 9.7 10.0 9.8 8.4 5.3 4.3 7.4 MEAN DAILY TEMP. (MDT) (C) 1.7 1.1 3.9 11.8 17.8 22.6 26.6 27.7 22.5 17.9 7.6 2.0 13.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 1.0 72.7 174.3 207.4 58.2 3.6 0.0 0.0 517.2 HEATING DEG. DAYS(BASE 18 0C) 504.3 474.0 437.6 186.3 36.6 5.3 0.0 0.0 0.1 38.6 311.5 497.4 2491.7 DEWPOINT (MEAN C) -3.5 -3.6 -1.6 2.4 3.4 5.5 7.2 5.2 3.5 3.4 0.2 -1.6 1.7 MIXING RATIO (G/KG) 3.62 3.58 4.22 5.54 5.99 6.96 7.86 6.75 5.96 5.97 4.80 4.19 5.45 VAPOUR PRESSURE (HPA) 4.89 4.81 5.66 7.44 8.05 9.30 10.46 9.04 8.01 8.04 6.49 5.66 7.32 SATURATION DEF. (HPA) 2.07 1.79 2.35 6.77 12.62 18.82 24.75 28.31 19.02 12.62 4.05 1.51 11.22 RELATIVE HUMIDITY (MEAN %) 73 75 72 57 41 36 31 26 32 43 64 79 52 RELATIVE HUMIDITY (MAX. %) 82 91 87 72 56 48 42 36 43 57 76 88 65 RELATIVE HUMIDITY (MIN. %) 63 59 55 41 28 24 21 17 21 30 51 69 40 RELATIVE HUMIDITY (MEAN% 03UTC) 77 78 79 63 49 47 41 35 42 52 70 83 60 RELATIVE HUMIDITY (MEAN% 09UTC) 72 73 68 49 35 33 30 24 28 36 61 75 49 RELATIVE HUMIDITY (MEAN% 15UTC) 70 73 69 52 34 26 23 18 24 38 58 78 47 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 119.4 224.5 235.5 116.0 35.5 8.2 0.0 4.0 0.0 53.4 198.3 201.0 1195.8 DAYS WITH PRECIPITATION >=10 4 8 8 5 1 0 0 0 0 2 5 8 41 DAYS WITH PRECIPITATION >= 5 4 14 14 6 2 1 0 0 0 3 5 10 59 DAYS WITH PRECIPITATION >= 1 9 16 17 12 6 2 0 1 0 5 8 12 88 DAYS WITH PRECIPITATION 10 20 21 15 8 2 0 1 0 7 11 18 113 GREATEST DAILY PRECIPITATION 39.0 33.0 50.0 24.0 19.4 5.2 0.0 4.0 0.0 22.0 100.0 41.0 100.0 DAY 28 22 26 16 31 1 ** 21 ** 30 11 6 DAY WITH THUNDER STORM 0 5 3 7 5 1 0 1 0 4 3 0 29 DAYS WITH SNOW OR SLEET 9 19 15 1 0 0 0 0 0 0 2 12 58 DAYS WITH DUST 1 0 0 3 3 0 0 0 0 0 0 0 7 WIND DIRECTION (PREVAILING) 180 180 180 180 360 360 360 360 270 225 360 360 360 PREVAILING WIND SPEED(KNOTS) 8.8 10.1 10.9 14.6 10.2 11.0 12.8 11.7 9.8 8.6 8.4 12.3 10.7 PREVAILING WIND PERCENT 20.2 30.8 21.8 23.3 16.9 28.8 29.4 28.6 18.8 17.3 13.3 19.0 15.9 CALMS PERCENT OF WIND 47.6 37.1 46.0 42.1 35.1 29.6 25.4 27.0 36.3 45.6 56.3 46.0 39.5 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 283 205 205 201 302 318 322 332 274 212 282 290 268 VECTOR WIND MAGNITUDE(KNOTS) 1.2 4.4 2.9 3.8 1.7 3.6 4.5 4.7 3.1 3.3 0.7 1.0 1.8 WIND STEADINESES (MEAN %) 24.0 74.6 59.2 61.3 27.4 50.7 57.7 63.5 55.4 61.1 18.9 17.2 30.5 WIND SPEED (MEAN KNOTS) 5.0 5.9 4.9 6.2 6.2 7.1 7.8 7.4 5.6 5.4 3.7 5.8 5.9 FASTEST WIND DIRECTION 210 200 200 180 260 340 350 330 220 180 180 20 180 FASTEST WIND SPEED (KNOTS) 27 29 29 39 27 31 27 29 27 49 29 39 49 DAY 14 19 7 26 7 14 22 3 12 29 10 11 DAYS WITH SKY CLEAR (0-2)/8 8 3 5 5 19 26 30 30 29 17 12 5 189 DAYS WITH P.CLOUDY (3-6)/8 11 13 13 15 8 4 1 1 1 12 11 14 104 DAYS WITH CLOUDY (7-8)/8 12 12 13 10 4 0 0 0 0 2 7 12 72 DAYS WITH VISIBILITY =< 2 KM 8 14 9 3 2 0 3 0 0 2 6 6 53 DURATION OF SUNSHINE HOURS 153.4 128.5 171.3 181.6 321.4 368.7 380.1 372.4 326.4 257.6 172.5 130.5 2964.4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 845.3 841.0 841.5 843.0 844.4 841.0 838.9 842.0 843.9 846.3 847.4 847.0 843.5 MAX. QFE PRESSURE IN HPA 852.9 849.5 852.0 849.8 850.7 846.2 845.5 844.9 850.1 852.5 855.1 854.8 855.1 DAY-HOUR 7- 9 6- 9 2- 9 8- 6 1- 6 6- 6 3- 6 8- 6 22-21 15- 6 25- 9 11-18 MIN. QFE PRESSURE IN HPA 830.2 828.6 828.7 834.9 838.1 834.1 834.9 838.4 840.0 836.1 838.3 836.3 828.6 DAY-HOUR 28-12 20- 3 26- 3 20-15 7-15 30-15 25-15 21-12 5-15 29- 0 9-12 18-21 MEAN QNH PRESSURE IN HPA 1033.2 1028.1 1028.8 1030.5 1032.3 1028.2 1025.7 1029.4 1031.6 1034.5 1035.7 1035.2 1031.1 MAX. QNH PRESSURE IN HPA 1042.2 1038.2 1041.1 1038.6 1039.6 1034.3 1033.5 1032.8 1038.9 1041.7 1044.8 1044.4 1044.8 DAY-HOUR 7- 9 6- 9 2- 9 8- 6 1- 6 6- 6 3- 6 8- 6 22-21 15- 6 25- 9 11-18 MIN. QNH PRESSURE IN HPA 1015.5 1013.6 1013.7 1021.0 1024.8 1020.1 1021.0 1025.1 1027.0 1022.4 1025.0 1022.7 1013.6 DAY-HOUR 28-12 20- 3 26- 3 20-15 7-15 30-15 25-15 21-12 5-15 29- 0 9-12 18-21 MEAN QFF PRESSURE IN HPA 1035.7 1030.8 1029.6 1025.3 1023.0 1015.5 1010.3 1013.7 1019.5 1025.2 1033.7 1037.3 1025.0 MAX. QFF PRESSURE IN HPA 1042.5 1043.1 1047.9 1036.6 1035.9 1028.0 1019.1 1018.2 1031.0 1034.4 1044.1 1049.4 1049.4 DAY-HOUR 17- 6 28-18 2- 6 29- 6 1- 0 6- 6 3- 6 18- 6 23- 6 31- 6 25- 6 11-18 MIN. QFF PRESSURE IN HPA 1018.2 1014.9 1012.4 1012.1 1014.8 1006.1 1005.2 1009.3 1010.8 1014.1 1020.4 1019.8 1005.2 DAY-HOUR 28-12 20- 3 26- 3 26- 0 29- 0 30-15 8- 0 21-12 6- 0 29- 0 9-12 18-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 845.2 840.7 841.4 842.5 844.4 841.1 838.7 841.8 843.8 846.0 847.3 846.8 843.3 MAX. QFE PRESSURE IN HPA 852.2 848.2 850.7 848.1 849.8 845.9 843.7 843.7 849.7 850.9 852.6 853.5 853.5 DAY 12 6 2 3 1 6 3 18 23 15 25 31 MIN. QFE PRESSURE IN HPA 835.1 829.0 831.6 836.5 838.1 836.4 835.0 839.6 840.0 836.1 840.7 837.7 829.0 DAY 29 20 13 20 29 30 1 1 6 29 9 19 MEAN QNH PRESSURE IN HPA 1033.1 1027.9 1028.7 1030.0 1032.2 1028.3 1025.4 1029.2 1031.5 1034.1 1035.6 1035.1 1030.9 MAX. QNH PRESSURE IN HPA 1041.4 1036.7 1039.6 1036.6 1038.6 1034.0 1031.4 1031.4 1038.4 1039.8 1041.9 1042.9 1042.9 DAY 12 6 2 3 1 6 3 18 23 15 25 31 MIN. QNH PRESSURE IN HPA 1021.3 1014.1 1017.1 1022.9 1024.8 1022.8 1021.1 1026.6 1027.0 1022.4 1027.8 1024.3 1014.1 DAY 29 20 13 20 29 30 1 1 6 29 9 19 MEAN QFF PRESSURE IN HPA 1035.3 1030.2 1029.2 1024.6 1022.7 1015.5 1009.7 1013.0 1018.6 1024.3 1033.2 1036.8 1024.4 MAX. QFF PRESSURE IN HPA 1041.9 1039.5 1046.3 1034.7 1035.9 1025.3 1017.1 1016.4 1029.0 1031.2 1040.9 1048.1 1048.1 DAY 31 6 2 29 1 6 3 18 23 31 23 12 MIN. QFF PRESSURE IN HPA 1022.4 1015.3 1015.1 1012.1 1014.8 1007.3 1005.2 1010.0 1010.8 1014.1 1022.1 1022.8 1005.2 DAY 28 20 26 26 29 30 8 14 6 29 9 19 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 844.9 840.6 841.2 842.5 844.5 841.4 839.1 842.3 844.1 846.2 847.3 846.6 843.4 MAX. QFE PRESSURE IN HPA 851.5 848.2 850.6 848.4 849.9 845.9 844.7 844.3 849.6 851.2 853.4 852.8 853.4 DAY 12 6 2 8 1 6 3 8 23 15 25 31 MIN. QFE PRESSURE IN HPA 832.8 828.6 828.7 835.8 838.3 836.5 835.5 840.1 840.7 837.7 840.7 836.8 828.6 DAY 28 20 26 20 29 30 1 21 7 29 9 6 MEAN QNH PRESSURE IN HPA 1032.8 1027.7 1028.4 1030.0 1032.3 1028.7 1026.0 1029.7 1031.8 1034.3 1035.6 1034.8 1031.0 MAX. QNH PRESSURE IN HPA 1040.6 1036.7 1039.5 1036.9 1038.7 1034.0 1032.6 1032.1 1038.3 1040.2 1042.8 1042.1 1042.8 DAY 12 6 2 8 1 6 3 8 23 15 25 31 MIN. QNH PRESSURE IN HPA 1018.5 1013.6 1013.7 1022.1 1025.0 1022.9 1021.7 1027.1 1027.8 1024.3 1027.8 1023.3 1013.6 DAY 28 20 26 20 29 30 1 21 7 29 9 6 MEAN QFF PRESSURE IN HPA 1035.6 1030.6 1029.6 1025.1 1023.4 1016.4 1010.9 1014.3 1020.1 1025.6 1033.9 1037.2 1025.2 MAX. QFF PRESSURE IN HPA 1041.3 1040.1 1046.5 1034.9 1035.5 1025.7 1018.7 1017.4 1030.1 1033.4 1041.9 1047.6 1047.6 DAY 31 12 2 29 1 6 3 18 23 31 25 12 MIN. QFF PRESSURE IN HPA 1020.2 1014.9 1012.4 1014.3 1015.4 1008.1 1006.2 1011.5 1012.6 1017.8 1022.2 1024.0 1006.2 DAY 28 20 26 20 29 30 8 14 5 27 9 6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 845.8 841.5 842.1 843.5 845.1 841.8 839.6 842.9 844.7 847.0 848.1 847.7 844.2 MAX. QFE PRESSURE IN HPA 852.3 849.0 851.7 849.8 850.7 846.2 845.5 844.9 850.1 852.5 854.8 854.3 854.8 DAY 12 6 2 8 1 6 3 8 23 15 25 30 MIN. QFE PRESSURE IN HPA 832.4 830.3 831.5 836.2 839.1 836.9 835.5 840.8 841.0 839.0 840.4 837.0 830.3 DAY 28 19 26 20 7 30 1 14 7 29 9 6 MEAN QNH PRESSURE IN HPA 1033.9 1028.8 1029.5 1031.1 1033.0 1029.1 1026.6 1030.5 1032.6 1035.3 1036.6 1036.0 1031.9 MAX. QNH PRESSURE IN HPA 1041.5 1037.6 1040.8 1038.6 1039.6 1034.3 1033.5 1032.8 1038.9 1041.7 1044.4 1043.8 1044.4 DAY 12 6 2 8 1 6 3 8 23 15 25 30 MIN. QNH PRESSURE IN HPA 1018.1 1015.6 1017.0 1022.5 1026.0 1023.4 1021.7 1028.0 1028.2 1025.8 1027.5 1023.5 1015.6 DAY 28 19 26 20 7 30 1 14 7 29 9 6 MEAN QFF PRESSURE IN HPA 1036.8 1031.6 1030.6 1026.0 1024.0 1016.7 1011.4 1015.1 1020.8 1026.3 1034.9 1038.4 1026.1 MAX. QFF PRESSURE IN HPA 1042.5 1042.3 1047.9 1036.6 1035.7 1028.0 1019.1 1018.2 1031.0 1034.4 1044.1 1048.3 1048.3 DAY 17 12 2 29 1 6 3 18 23 31 25 22 MIN. QFF PRESSURE IN HPA 1019.8 1017.2 1016.9 1015.4 1016.1 1008.8 1006.1 1012.1 1013.6 1018.9 1021.8 1024.6 1006.1 DAY 28 20 19 20 29 30 8 14 5 27 9 6 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 845.7 841.6 842.2 843.5 845.0 841.5 839.3 842.6 844.4 846.7 847.8 847.3 844.0 MAX. QFE PRESSURE IN HPA 852.9 849.5 852.0 849.6 850.4 845.8 845.3 844.7 849.4 851.9 855.1 853.9 855.1 DAY 7 6 2 30 1 6 3 8 22 15 25 30 MIN. QFE PRESSURE IN HPA 831.2 830.1 831.1 836.4 838.5 836.2 835.4 840.1 841.0 839.2 839.5 836.8 830.1 DAY 28 19 26 20 7 30 1 21 5 29 9 6 MEAN QNH PRESSURE IN HPA 1033.7 1028.9 1029.6 1031.1 1032.9 1028.8 1026.2 1030.1 1032.1 1035.0 1036.2 1035.6 1031.7 MAX. QNH PRESSURE IN HPA 1042.2 1038.2 1041.1 1038.3 1039.3 1033.8 1033.3 1032.6 1038.1 1041.0 1044.8 1043.4 1044.8 DAY 7 6 2 30 1 6 3 8 22 15 25 30 MIN. QNH PRESSURE IN HPA 1016.7 1015.4 1016.5 1022.8 1025.3 1022.5 1021.6 1027.1 1028.2 1026.1 1026.4 1023.3 1015.4 DAY 28 19 26 20 7 30 1 21 5 29 9 6 MEAN QFF PRESSURE IN HPA 1036.0 1031.3 1030.3 1025.6 1023.4 1015.9 1010.6 1013.9 1019.7 1025.2 1034.0 1037.4 1025.3 MAX. QFF PRESSURE IN HPA 1042.1 1042.3 1047.8 1036.1 1035.1 1027.0 1018.4 1017.1 1029.0 1033.0 1043.6 1046.7 1047.8 DAY 17 28 2 29 1 6 3 29 23 18 25 22 MIN. QFF PRESSURE IN HPA 1018.5 1017.3 1016.8 1015.1 1016.8 1007.8 1006.3 1010.7 1011.7 1018.6 1022.1 1024.4 1006.3 DAY 28 20 26 20 29 30 7 13 5 27 9 6 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 844.7 840.6 841.2 842.8 844.0 840.5 838.5 841.5 843.3 845.9 846.8 846.5 843.0 MAX. QFE PRESSURE IN HPA 852.0 848.5 850.6 849.8 848.9 844.5 844.1 843.7 848.0 851.1 852.9 853.7 853.7 DAY 7 6 2 30 1 4 3 8 22 15 25 11 MIN. QFE PRESSURE IN HPA 830.2 830.1 831.1 835.6 838.3 834.9 835.0 838.4 840.1 839.5 838.3 836.8 830.1 DAY 28 20 26 20 7 30 1 21 5 29 9 6 MEAN QNH PRESSURE IN HPA 1032.5 1027.7 1028.5 1030.3 1031.8 1027.6 1025.2 1028.8 1030.9 1034.0 1035.0 1034.6 1030.6 MAX. QNH PRESSURE IN HPA 1041.1 1037.0 1039.5 1038.6 1037.5 1032.3 1031.9 1031.4 1036.4 1040.1 1042.2 1043.1 1043.1 DAY 7 6 2 30 1 4 3 8 22 15 25 11 MIN. QNH PRESSURE IN HPA 1015.5 1015.4 1016.5 1021.8 1025.0 1021.0 1021.1 1025.1 1027.1 1026.4 1025.0 1023.3 1015.4 DAY 28 20 26 20 7 30 1 21 5 29 9 6 MEAN QFF PRESSURE IN HPA 1034.6 1030.1 1028.8 1024.9 1022.3 1014.7 1009.4 1012.6 1018.2 1024.3 1032.6 1036.4 1024.1 MAX. QFF PRESSURE IN HPA 1039.8 1041.7 1045.6 1036.2 1032.7 1024.8 1016.8 1015.6 1026.6 1032.1 1040.9 1046.5 1046.5 DAY 7 28 2 30 1 6 3 17 22 31 22 11 MIN. QFF PRESSURE IN HPA 1018.2 1016.9 1016.9 1014.0 1014.9 1006.5 1005.4 1009.3 1011.0 1018.7 1020.4 1024.4 1005.4 DAY 28 20 12 20 22 30 7 21 5 3 9 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 844.9 840.7 841.1 842.6 843.7 840.1 838.1 841.2 843.1 846.0 846.9 846.8 842.9 MAX. QFE PRESSURE IN HPA 852.4 848.0 850.1 849.5 848.1 844.4 843.0 843.5 847.8 850.7 853.6 854.2 854.2 DAY 7 6 2 30 1 2 3 12 22 15 25 11 MIN. QFE PRESSURE IN HPA 831.2 831.2 831.1 834.9 838.1 834.1 834.9 838.6 840.0 839.5 838.5 838.6 831.1 DAY 28 19 26 20 7 30 25 20 5 28 9 6 MEAN QNH PRESSURE IN HPA 1032.8 1027.8 1028.3 1030.1 1031.4 1027.1 1024.8 1028.4 1030.7 1034.0 1035.2 1035.0 1030.5 MAX. QNH PRESSURE IN HPA 1041.6 1036.4 1038.9 1038.2 1036.6 1032.2 1030.6 1031.1 1036.2 1039.6 1043.0 1043.7 1043.7 DAY 7 6 2 30 1 2 3 12 22 15 25 11 MIN. QNH PRESSURE IN HPA 1016.7 1016.7 1016.5 1021.0 1024.8 1020.1 1021.0 1025.4 1027.0 1026.4 1025.3 1025.4 1016.5 DAY 28 19 26 20 7 30 25 20 5 28 9 6 MEAN QFF PRESSURE IN HPA 1035.6 1030.8 1029.3 1025.1 1022.4 1014.7 1009.8 1013.1 1019.1 1025.5 1033.5 1037.4 1024.7 MAX. QFF PRESSURE IN HPA 1041.4 1042.5 1045.3 1035.5 1031.8 1024.3 1015.8 1016.2 1027.6 1033.3 1042.0 1048.4 1048.4 DAY 7 28 1 30 1 6 3 29 22 31 25 11 MIN. QFF PRESSURE IN HPA 1019.9 1018.4 1016.7 1013.4 1015.6 1006.1 1005.3 1010.5 1012.0 1019.0 1020.6 1023.8 1005.3 DAY 28 19 25 20 22 30 7 20 5 1 9 18 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 845.5 841.1 841.6 843.4 844.4 840.7 838.9 841.9 843.9 846.5 847.5 847.2 843.5 MAX. QFE PRESSURE IN HPA 852.4 848.8 850.4 849.8 848.6 845.1 843.0 844.0 849.8 851.0 853.8 854.8 854.8 DAY 7 6 1 30 1 5 3 17 22 15 25 11 MIN. QFE PRESSURE IN HPA 832.7 831.3 832.0 835.9 838.7 834.6 835.3 839.5 840.7 837.9 840.4 838.7 831.3 DAY 28 18 26 20 28 30 25 21 5 28 9 18 MEAN QNH PRESSURE IN HPA 1033.5 1028.3 1028.9 1031.0 1032.2 1027.8 1025.7 1029.3 1031.7 1034.6 1035.8 1035.5 1031.2 MAX. QNH PRESSURE IN HPA 1041.6 1037.4 1039.3 1038.6 1037.1 1033.0 1030.6 1031.7 1038.6 1040.0 1043.3 1044.4 1044.4 DAY 7 6 1 30 1 5 3 17 22 15 25 11 MIN. QNH PRESSURE IN HPA 1018.4 1016.8 1017.6 1022.2 1025.5 1020.7 1021.5 1026.4 1027.8 1024.6 1027.5 1025.5 1016.8 DAY 28 18 26 20 28 30 25 21 5 28 9 18 MEAN QFF PRESSURE IN HPA 1036.4 1031.2 1029.9 1025.9 1023.2 1015.4 1010.8 1014.1 1020.1 1025.8 1034.2 1037.9 1025.4 MAX. QFF PRESSURE IN HPA 1041.7 1043.1 1046.5 1035.4 1032.4 1025.1 1016.7 1017.6 1030.3 1033.1 1042.8 1049.4 1049.4 DAY 7 28 1 30 1 6 2 17 22 31 22 11 MIN. QFF PRESSURE IN HPA 1021.6 1019.3 1016.8 1015.5 1016.2 1006.7 1005.9 1011.7 1012.8 1016.7 1022.7 1023.5 1005.9 DAY 28 19 12 25 22 30 7 13 4 28 8 18 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 845.4 841.0 841.6 843.3 844.6 841.0 839.1 842.1 844.0 846.5 847.5 847.0 843.6 MAX. QFE PRESSURE IN HPA 852.5 848.3 850.7 849.8 848.2 845.9 843.5 844.0 850.1 850.8 853.6 854.4 854.4 DAY 11 6 1 30 1 5 3 8 22 15 25 11 MIN. QFE PRESSURE IN HPA 834.1 830.5 831.6 836.7 838.7 835.1 835.5 840.3 840.4 837.9 840.8 836.3 830.5 DAY 28 19 12 20 28 30 25 20 5 28 9 18 MEAN QNH PRESSURE IN HPA 1033.4 1028.2 1028.9 1030.9 1032.4 1028.2 1026.0 1029.5 1031.7 1034.6 1035.8 1035.3 1031.3 MAX. QNH PRESSURE IN HPA 1041.7 1036.8 1039.6 1038.6 1036.7 1034.0 1031.1 1031.7 1038.9 1039.7 1043.0 1044.0 1044.0 DAY 11 6 1 30 1 5 3 8 22 15 25 11 MIN. QNH PRESSURE IN HPA 1020.1 1015.8 1017.1 1023.1 1025.5 1021.3 1021.7 1027.4 1027.5 1024.6 1028.0 1022.7 1015.8 DAY 28 19 12 20 28 30 25 20 5 28 9 18 MEAN QFF PRESSURE IN HPA 1035.7 1030.7 1029.4 1025.3 1022.9 1015.3 1010.5 1013.5 1019.4 1024.9 1033.7 1037.2 1024.9 MAX. QFF PRESSURE IN HPA 1041.6 1042.6 1046.5 1034.5 1031.6 1025.5 1016.6 1016.8 1030.0 1032.6 1041.7 1049.2 1049.2 DAY 11 28 1 30 1 5 2 17 22 31 22 11 MIN. QFF PRESSURE IN HPA 1023.4 1017.4 1015.1 1013.7 1015.8 1007.3 1005.6 1010.5 1011.4 1016.4 1023.6 1019.8 1005.6 DAY 28 19 25 25 28 30 7 13 5 28 8 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.3 2.0 9.0 10.4 15.2 23.2 25.9 26.6 22.6 17.6 6.5 0.4 13.4 MINIMUN AIR TEMPERATURE (C) -0.4 -0.8 6.0 6.6 11.6 18.2 21.0 21.7 18.3 13.8 4.3 -1.7 9.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 17 22 9 0 0 0 50 DAYS WITH MINIMUM TEMP. <=-4 0 5 0 0 0 0 0 0 0 0 2 5 12 DAYS WITH FREEZING MIN.<= 0 18 20 4 2 0 0 0 0 0 0 7 25 76 TEMPERATURE RECORDS LOWEST(C) -3.0 -10.2 -3.0 -2.4 6.0 14.4 15.8 19.8 13.6 8.2 -4.0 -9.0 -10.2 DAY 1 24 16 5 17 30 11 14 13 22 25 18 MAXIMUM AIR TEMPERATURE (C) 3.9 5.1 13.0 14.5 19.2 27.8 31.1 32.0 27.9 22.3 9.1 3.3 17.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 6 22 30 8 0 0 0 66 DAYS WITH MAXIMUM TEMP. <= 0 2 3 0 0 0 0 0 0 0 0 1 5 11 TEMPERATURE RECORDS HIGHEST(C) 7.2 13.8 20.0 22.6 25.2 32.0 35.2 35.4 33.6 27.6 15.0 13.4 35.4 DAY 22 28 27 14 27 22 17 18 2 1 11 31 DIF. BETWEEN (MAX.-MIN.) (C) 4.3 5.9 7.0 7.9 7.6 9.6 10.1 10.3 9.6 8.5 4.8 5.0 7.5 MEAN DAILY TEMP. (MDT) (C) 1.8 2.1 9.5 10.6 15.4 23.0 26.0 26.9 23.1 18.1 6.7 0.8 13.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.5 67.7 156.5 181.8 74.3 2.3 0.0 0.0 483.1 HEATING DEG. DAYS(BASE 18 0C) 503.6 460.4 263.6 222.3 96.5 0.0 0.0 0.0 0.1 30.6 337.7 534.4 2449.2 DEWPOINT (MEAN C) -2.0 -2.6 -1.2 0.7 6.0 3.7 6.1 5.3 2.0 1.1 2.5 -6.3 1.3 MIXING RATIO (G/KG) 4.04 3.86 4.30 4.99 7.08 6.08 7.29 6.89 5.39 5.05 5.80 2.95 5.31 VAPOUR PRESSURE (HPA) 5.43 5.20 5.81 6.69 9.47 8.15 9.73 9.20 7.26 6.83 7.81 4.00 7.13 SATURATION DEF. (HPA) 1.35 2.16 6.32 6.51 8.41 20.80 24.36 26.15 20.96 13.80 2.23 2.45 11.29 RELATIVE HUMIDITY (MEAN %) 81 74 52 55 58 30 31 27 28 35 78 64 51 RELATIVE HUMIDITY (MAX. %) 92 88 65 71 75 42 42 37 38 49 90 76 64 RELATIVE HUMIDITY (MIN. %) 70 57 38 38 42 20 20 18 19 23 64 51 38 RELATIVE HUMIDITY (MEAN% 03UTC) 85 81 59 62 65 40 40 36 37 45 85 68 59 RELATIVE HUMIDITY (MEAN% 09UTC) 80 72 49 49 52 27 29 24 23 30 76 63 48 RELATIVE HUMIDITY (MEAN% 15UTC) 79 70 47 49 49 22 21 20 22 29 74 61 45 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 275.1 134.9 64.0 158.0 104.3 0.0 1.1 0.0 0.0 14.5 256.5 42.7 1051.1 DAYS WITH PRECIPITATION >=10 8 7 1 6 2 0 0 0 0 1 12 1 38 DAYS WITH PRECIPITATION >= 5 12 8 2 6 6 0 0 0 0 1 12 2 49 DAYS WITH PRECIPITATION >= 1 16 12 3 8 9 0 1 0 0 2 15 3 69 DAYS WITH PRECIPITATION 19 14 5 10 10 0 2 0 0 7 17 7 91 GREATEST DAILY PRECIPITATION 50.0 25.0 51.8 49.0 47.0 0.0 1.0 0.0 0.0 10.4 46.0 30.9 51.8 DAY 13 12 7 23 1 ** 12 ** ** 31 23 12 DAY WITH THUNDER STORM 3 2 0 4 11 0 2 0 0 1 6 0 29 DAYS WITH SNOW OR SLEET 20 12 1 1 0 0 0 0 0 0 3 7 44 DAYS WITH DUST 0 0 2 2 2 0 1 0 0 2 0 0 9 WIND DIRECTION (PREVAILING) 180 180 360 180 180 225 315 225 360 225 180 315 180 PREVAILING WIND SPEED(KNOTS) 8.3 10.7 10.7 12.5 12.6 8.6 11.5 8.5 11.1 6.4 11.9 9.2 10.5 PREVAILING WIND PERCENT 22.2 24.1 14.5 22.5 11.3 19.6 23.8 19.0 16.3 16.5 19.6 15.7 12.9 CALMS PERCENT OF WIND 60.9 48.3 50.0 35.0 48.0 28.3 24.2 41.1 37.9 50.8 61.3 58.5 45.4 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 196 201 230 197 206 295 318 274 297 197 173 329 246 VECTOR WIND MAGNITUDE(KNOTS) 2.2 4.8 1.4 2.0 1.4 3.3 5.0 2.5 2.9 2.0 3.0 1.7 1.6 WIND STEADINESES (MEAN %) 75.9 88.9 25.5 29.0 30.4 48.5 66.7 51.0 46.8 55.6 76.9 43.6 30.8 WIND SPEED (MEAN KNOTS) 2.9 5.4 5.5 6.9 4.6 6.8 7.5 4.9 6.2 3.6 3.9 3.9 5.2 FASTEST WIND DIRECTION 190 180 180 170 180 350 330 310 260 180 180 340 180 FASTEST WIND SPEED (KNOTS) 23 33 39 35 29 23 27 19 21 29 35 29 39 DAY 8 15 6 3 15 13 7 7 10 21 18 27 DAYS WITH SKY CLEAR (0-2)/8 6 5 8 11 10 30 27 31 30 18 8 13 197 DAYS WITH P.CLOUDY (3-6)/8 11 12 15 8 17 0 4 0 0 10 10 10 97 DAYS WITH CLOUDY (7-8)/8 14 12 8 11 4 0 0 0 0 3 12 8 72 DAYS WITH VISIBILITY =< 2 KM 16 10 2 7 3 0 0 0 0 2 12 6 58 DURATION OF SUNSHINE HOURS 113.1 145.5 228.4 218.9 279.0 393.9 385.4 379.2 329.0 256.9 129.5 153.7 3012.5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 842.1 844.0 845.6 842.3 841.9 842.0 840.7 840.9 845.7 848.5 846.0 845.9 843.8 MAX. QFE PRESSURE IN HPA 848.6 851.3 851.9 849.6 847.2 847.2 844.6 845.0 851.3 853.6 851.3 855.0 855.0 DAY-HOUR 1- 0 8- 9 9- 6 12- 6 18-18 5- 9 17- 9 29- 6 25- 6 27- 6 29- 9 3- 6 MIN. QFE PRESSURE IN HPA 833.0 832.8 836.5 832.6 831.3 835.5 835.3 836.1 839.0 839.2 831.8 837.5 831.3 DAY-HOUR 13-12 22-15 31-12 16-15 15-15 15-15 10-15 3-15 5-15 22- 0 23- 3 15-12 MEAN QNH PRESSURE IN HPA 1029.5 1031.7 1033.6 1029.8 1029.3 1029.3 1027.8 1028.1 1033.7 1037.0 1034.1 1033.9 1031.5 MAX. QNH PRESSURE IN HPA 1037.1 1040.3 1041.0 1038.3 1035.5 1035.5 1032.4 1032.9 1040.3 1043.0 1040.3 1044.7 1044.7 DAY-HOUR 1- 0 8- 9 9- 6 12- 6 18-18 5- 9 17- 9 29- 6 25- 6 27- 6 29- 9 3- 6 MIN. QNH PRESSURE IN HPA 1018.8 1018.5 1022.9 1018.3 1016.8 1021.7 1021.5 1022.4 1025.8 1026.1 1017.4 1024.1 1016.8 DAY-HOUR 13-12 22-15 31-12 16-15 15-15 15-15 10-15 3-15 5-15 22- 0 23- 3 15-12 MEAN QFF PRESSURE IN HPA 1031.8 1033.8 1030.5 1025.5 1021.4 1016.4 1013.0 1012.8 1021.2 1027.9 1032.5 1037.3 1025.3 MAX. QFF PRESSURE IN HPA 1041.8 1046.2 1041.0 1037.3 1030.2 1024.0 1019.0 1018.9 1028.7 1036.6 1045.3 1049.7 1049.7 DAY-HOUR 1- 0 24- 6 9- 6 6- 6 18- 3 5- 6 6- 6 29- 6 20- 6 24- 6 28-18 3- 6 MIN. QFF PRESSURE IN HPA 1020.1 1018.1 1017.6 1013.1 1010.1 1008.2 1008.5 1006.1 1011.4 1016.1 1016.6 1026.9 1006.1 DAY-HOUR 13-12 14-21 6- 3 16-12 15- 9 15-15 9-15 3- 0 5-21 22- 0 23- 3 15-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 842.1 843.8 845.5 842.0 841.5 841.8 840.6 840.7 845.5 848.2 845.8 845.7 843.6 MAX. QFE PRESSURE IN HPA 848.6 850.5 850.8 848.3 845.1 846.3 843.4 843.8 849.8 852.5 850.4 852.9 852.9 DAY 1 9 9 12 26 6 18 30 27 27 29 3 MIN. QFE PRESSURE IN HPA 835.3 835.0 838.1 834.0 832.4 838.2 836.9 836.9 840.1 839.2 833.9 838.4 832.4 DAY 24 15 31 17 13 15 11 3 6 22 23 16 MEAN QNH PRESSURE IN HPA 1029.5 1031.5 1033.5 1029.3 1028.8 1029.2 1027.7 1027.9 1033.5 1036.7 1033.9 1033.7 1031.3 MAX. QNH PRESSURE IN HPA 1037.1 1039.4 1039.7 1036.8 1033.0 1034.4 1031.0 1031.5 1038.6 1041.7 1039.3 1042.2 1042.2 DAY 1 9 9 12 26 6 18 30 27 27 29 3 MIN. QNH PRESSURE IN HPA 1021.5 1021.1 1024.8 1020.0 1018.1 1024.9 1023.4 1023.4 1027.1 1026.1 1019.8 1025.1 1018.1 DAY 24 15 31 17 13 15 11 3 6 22 23 16 MEAN QFF PRESSURE IN HPA 1031.5 1033.3 1029.9 1024.9 1020.8 1016.0 1012.6 1012.1 1020.4 1026.9 1032.0 1036.7 1024.8 MAX. QFF PRESSURE IN HPA 1041.8 1044.0 1038.1 1035.9 1028.9 1022.0 1017.2 1016.3 1026.4 1033.5 1043.9 1047.2 1047.2 DAY 1 24 9 6 18 5 1 30 20 24 29 18 MIN. QFF PRESSURE IN HPA 1022.9 1021.9 1018.1 1014.9 1010.3 1010.3 1010.1 1006.1 1011.9 1016.1 1017.5 1029.1 1006.1 DAY 23 14 6 23 13 20 10 3 6 22 23 16 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 841.8 843.6 845.5 842.1 841.6 842.2 841.0 841.0 845.8 848.4 845.7 845.6 843.7 MAX. QFE PRESSURE IN HPA 847.6 850.4 850.8 848.4 845.9 846.9 844.1 844.3 850.2 852.5 850.4 853.8 853.8 DAY 1 9 23 28 18 6 6 29 27 27 29 3 MIN. QFE PRESSURE IN HPA 834.5 834.7 837.9 834.3 832.7 838.2 837.2 836.4 840.4 841.4 831.8 838.4 831.8 DAY 13 15 31 17 13 15 12 3 6 22 23 16 MEAN QNH PRESSURE IN HPA 1029.2 1031.3 1033.5 1029.5 1029.0 1029.7 1028.2 1028.2 1033.8 1036.9 1033.8 1033.6 1031.4 MAX. QNH PRESSURE IN HPA 1036.0 1039.3 1039.7 1036.9 1034.0 1035.1 1031.9 1032.1 1039.0 1041.7 1039.3 1043.3 1043.3 DAY 1 9 23 28 18 6 6 29 27 27 29 3 MIN. QNH PRESSURE IN HPA 1020.5 1020.8 1024.6 1020.3 1018.4 1024.9 1023.7 1022.8 1027.5 1028.7 1017.4 1025.1 1017.4 DAY 13 15 31 17 13 15 12 3 6 22 23 16 MEAN QFF PRESSURE IN HPA 1031.8 1033.7 1030.7 1025.6 1021.4 1016.9 1013.5 1013.3 1021.8 1028.3 1032.5 1037.4 1025.6 MAX. QFF PRESSURE IN HPA 1041.2 1044.9 1038.5 1036.6 1030.2 1022.8 1018.9 1018.1 1027.6 1034.8 1044.3 1048.6 1048.6 DAY 1 24 9 6 18 3 6 29 25 24 29 18 MIN. QFF PRESSURE IN HPA 1022.0 1022.3 1017.6 1014.9 1011.0 1010.8 1010.4 1006.3 1012.9 1021.6 1016.6 1029.1 1006.3 DAY 23 15 6 23 13 20 10 3 6 22 23 12 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 842.7 844.7 846.4 842.9 842.2 842.7 841.5 841.6 846.6 849.5 846.7 846.5 844.5 MAX. QFE PRESSURE IN HPA 847.7 851.3 851.9 849.6 846.6 847.2 844.4 845.0 851.3 853.6 851.0 855.0 855.0 DAY 1 9 9 12 18 6 7 29 25 27 29 3 MIN. QFE PRESSURE IN HPA 834.6 835.8 837.9 835.4 832.5 838.1 837.7 836.8 841.9 843.3 832.6 838.8 832.5 DAY 23 15 31 4 15 15 12 3 5 22 23 15 MEAN QNH PRESSURE IN HPA 1030.2 1032.5 1034.5 1030.5 1029.6 1030.2 1028.8 1028.9 1034.8 1038.2 1034.9 1034.7 1032.3 MAX. QNH PRESSURE IN HPA 1036.1 1040.3 1041.0 1038.3 1034.8 1035.5 1032.2 1032.9 1040.3 1043.0 1040.0 1044.7 1044.7 DAY 1 9 9 12 18 6 7 29 25 27 29 3 MIN. QNH PRESSURE IN HPA 1020.7 1022.1 1024.6 1021.6 1018.2 1024.8 1024.3 1023.3 1029.3 1030.9 1018.3 1025.6 1018.2 DAY 23 15 31 4 15 15 12 3 5 22 23 15 MEAN QFF PRESSURE IN HPA 1032.8 1034.8 1031.7 1026.5 1021.9 1017.3 1014.3 1013.9 1022.6 1029.4 1033.5 1038.4 1026.4 MAX. QFF PRESSURE IN HPA 1041.6 1046.2 1041.0 1037.3 1029.3 1024.0 1019.0 1018.9 1028.7 1036.6 1045.0 1049.7 1049.7 DAY 1 24 9 6 18 5 6 29 20 24 29 3 MIN. QFF PRESSURE IN HPA 1021.3 1023.4 1019.4 1017.9 1010.8 1011.8 1012.2 1006.5 1014.4 1023.0 1017.9 1029.7 1006.5 DAY 23 15 31 16 15 15 12 3 6 3 23 15 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 842.5 844.7 846.2 842.9 842.3 842.5 841.2 841.3 846.2 849.1 846.4 846.3 844.3 MAX. QFE PRESSURE IN HPA 847.3 851.3 851.5 849.1 847.0 847.2 844.6 845.0 851.2 853.0 851.3 854.2 854.2 DAY 16 8 9 12 18 5 17 29 27 27 29 3 MIN. QFE PRESSURE IN HPA 834.3 835.2 837.3 835.2 832.1 837.7 837.3 836.9 840.8 843.7 833.6 838.3 832.1 DAY 23 15 31 23 15 15 11 3 5 21 23 15 MEAN QNH PRESSURE IN HPA 1030.0 1032.6 1034.3 1030.4 1029.7 1029.9 1028.5 1028.6 1034.4 1037.7 1034.5 1034.4 1032.1 MAX. QNH PRESSURE IN HPA 1035.6 1040.3 1040.6 1037.7 1035.3 1035.5 1032.4 1032.9 1040.2 1042.3 1040.3 1043.7 1043.7 DAY 16 8 9 12 18 5 17 29 27 27 29 3 MIN. QNH PRESSURE IN HPA 1020.3 1021.4 1023.8 1021.4 1017.7 1024.3 1023.8 1023.4 1028.0 1031.4 1019.5 1025.0 1017.7 DAY 23 15 31 23 15 15 11 3 5 21 23 15 MEAN QFF PRESSURE IN HPA 1032.1 1034.4 1030.9 1025.8 1021.6 1016.6 1013.4 1013.0 1021.4 1028.1 1032.7 1037.6 1025.6 MAX. QFF PRESSURE IN HPA 1038.8 1044.8 1039.5 1035.6 1029.4 1023.8 1017.3 1018.0 1027.7 1035.0 1044.7 1048.9 1048.9 DAY 1 24 9 6 17 5 7 29 30 24 28 18 MIN. QFF PRESSURE IN HPA 1022.4 1023.1 1018.6 1017.1 1010.1 1010.8 1011.0 1006.7 1012.7 1021.8 1020.5 1028.6 1006.7 DAY 13 15 31 23 15 15 12 3 5 21 23 15 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 841.6 843.6 845.1 842.0 841.8 841.6 840.3 840.4 845.1 848.0 845.5 845.3 843.4 MAX. QFE PRESSURE IN HPA 846.6 850.3 850.0 848.0 847.1 846.3 842.9 843.9 849.7 851.6 850.4 853.2 853.2 DAY 16 8 9 27 18 5 17 29 27 27 29 3 MIN. QFE PRESSURE IN HPA 833.0 833.2 836.5 832.9 831.8 836.2 836.3 836.7 840.0 841.8 835.7 837.5 831.8 DAY 13 15 31 16 15 15 11 3 5 21 23 15 MEAN QNH PRESSURE IN HPA 1028.9 1031.2 1033.0 1029.4 1029.2 1028.9 1027.4 1027.5 1033.1 1036.4 1033.5 1033.3 1031.0 MAX. QNH PRESSURE IN HPA 1034.8 1039.1 1038.8 1036.4 1035.4 1034.4 1030.4 1031.6 1038.4 1040.7 1039.3 1042.6 1042.6 DAY 16 8 9 27 18 5 17 29 27 27 29 3 MIN. QNH PRESSURE IN HPA 1018.8 1019.0 1022.9 1018.7 1017.4 1022.5 1022.7 1023.1 1027.0 1029.1 1022.0 1024.1 1017.4 DAY 13 15 31 16 15 15 11 3 5 21 23 15 MEAN QFF PRESSURE IN HPA 1030.8 1032.9 1029.5 1024.8 1021.2 1015.7 1012.1 1011.8 1020.1 1026.8 1031.7 1036.2 1024.4 MAX. QFF PRESSURE IN HPA 1037.6 1043.3 1036.6 1034.0 1029.5 1022.4 1016.2 1016.6 1025.7 1032.5 1043.6 1046.8 1046.8 DAY 11 24 9 5 18 5 6 29 30 24 28 18 MIN. QFF PRESSURE IN HPA 1020.1 1021.8 1019.2 1013.1 1010.3 1008.6 1008.5 1006.8 1012.0 1019.4 1021.8 1026.9 1006.8 DAY 13 14 31 16 15 15 22 3 5 21 17 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 841.8 843.4 845.0 841.8 841.5 841.2 839.7 840.1 845.0 847.9 845.7 845.6 843.2 MAX. QFE PRESSURE IN HPA 846.4 850.3 849.8 847.6 846.9 846.1 842.7 843.5 849.0 851.3 850.5 853.3 853.3 DAY 16 8 8 27 18 5 17 29 27 26 28 3 MIN. QFE PRESSURE IN HPA 833.7 832.8 837.0 832.6 831.3 835.5 835.3 836.1 839.0 840.6 837.7 837.8 831.3 DAY 13 22 31 16 15 15 10 3 5 21 23 15 MEAN QNH PRESSURE IN HPA 1029.2 1031.1 1032.9 1029.1 1028.8 1028.4 1026.6 1027.2 1032.9 1036.3 1033.7 1033.6 1030.8 MAX. QNH PRESSURE IN HPA 1034.6 1039.1 1038.6 1036.0 1035.1 1034.2 1030.2 1031.1 1037.6 1040.3 1039.4 1042.7 1042.7 DAY 16 8 8 27 18 5 17 29 27 26 28 3 MIN. QNH PRESSURE IN HPA 1019.6 1018.5 1023.5 1018.3 1016.8 1021.7 1021.5 1022.4 1025.8 1027.7 1024.3 1024.4 1016.8 DAY 13 22 31 16 15 15 10 3 5 21 23 15 MEAN QFF PRESSURE IN HPA 1031.8 1033.3 1030.1 1025.1 1021.1 1015.7 1012.0 1012.3 1020.9 1027.9 1032.5 1037.3 1025.0 MAX. QFF PRESSURE IN HPA 1038.8 1043.7 1037.1 1034.7 1029.6 1022.7 1016.1 1017.2 1026.4 1033.5 1045.0 1048.3 1048.3 DAY 11 24 16 5 18 5 7 29 30 26 28 18 MIN. QFF PRESSURE IN HPA 1022.1 1021.3 1020.7 1013.9 1010.4 1008.2 1008.5 1006.8 1011.5 1018.9 1021.3 1029.0 1006.8 DAY 23 22 30 16 15 15 9 2 5 21 17 15 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 842.3 844.2 845.6 842.6 842.2 841.8 840.4 841.0 845.7 848.5 846.1 846.0 843.9 MAX. QFE PRESSURE IN HPA 846.7 851.3 851.4 848.6 847.2 846.3 843.0 844.5 849.6 852.3 850.9 853.5 853.5 DAY 11 9 8 27 18 5 16 29 24 26 29 3 MIN. QFE PRESSURE IN HPA 834.5 834.3 838.4 834.0 833.4 836.7 835.5 836.6 839.6 840.4 835.5 838.4 833.4 DAY 23 22 31 16 15 15 10 3 5 21 22 15 MEAN QNH PRESSURE IN HPA 1029.7 1032.0 1033.7 1030.1 1029.7 1029.1 1027.5 1028.2 1033.8 1037.0 1034.2 1034.1 1031.6 MAX. QNH PRESSURE IN HPA 1034.9 1040.3 1040.4 1037.1 1035.5 1034.4 1030.6 1032.3 1038.3 1041.5 1039.8 1042.9 1042.9 DAY 11 9 8 27 18 5 16 29 24 26 29 3 MIN. QNH PRESSURE IN HPA 1020.5 1020.3 1025.1 1020.0 1019.3 1023.1 1021.7 1023.0 1026.6 1027.5 1021.7 1025.1 1019.3 DAY 23 22 31 16 15 15 10 3 5 21 22 15 MEAN QFF PRESSURE IN HPA 1032.2 1034.2 1030.9 1026.0 1022.0 1016.4 1013.2 1013.4 1021.8 1028.4 1032.9 1037.7 1025.8 MAX. QFF PRESSURE IN HPA 1039.4 1044.5 1039.3 1036.4 1028.8 1022.8 1017.2 1018.1 1027.6 1034.5 1045.3 1048.4 1048.4 DAY 11 23 8 5 18 5 6 29 20 26 28 18 MIN. QFF PRESSURE IN HPA 1023.1 1019.8 1019.8 1017.0 1013.2 1009.8 1009.8 1007.6 1011.5 1017.7 1019.2 1030.0 1007.6 DAY 23 14 30 16 15 15 10 2 5 21 22 15 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 842.2 844.2 845.5 842.6 842.3 842.1 840.8 841.1 845.9 848.4 846.0 846.0 843.9 MAX. QFE PRESSURE IN HPA 846.3 851.0 851.4 848.7 846.5 846.6 843.4 844.5 849.8 852.7 850.5 853.0 853.0 DAY 16 9 8 27 18 5 17 29 26 26 28 3 MIN. QFE PRESSURE IN HPA 835.3 833.8 838.5 834.5 834.1 837.7 836.5 837.1 839.8 839.4 835.0 838.4 833.8 DAY 23 14 31 16 12 15 10 3 5 21 22 15 MEAN QNH PRESSURE IN HPA 1029.6 1031.9 1033.5 1030.1 1029.7 1029.5 1028.0 1028.3 1033.9 1036.9 1034.1 1034.1 1031.6 MAX. QNH PRESSURE IN HPA 1034.4 1040.0 1040.4 1037.3 1034.7 1034.8 1031.0 1032.3 1038.6 1042.0 1039.4 1042.3 1042.3 DAY 16 9 8 27 18 5 17 29 26 26 28 3 MIN. QNH PRESSURE IN HPA 1021.5 1019.7 1025.3 1020.5 1020.1 1024.3 1022.9 1023.6 1026.8 1026.3 1021.1 1025.1 1019.7 DAY 23 14 31 16 12 15 10 3 5 21 22 15 MEAN QFF PRESSURE IN HPA 1031.7 1033.6 1030.1 1025.4 1021.6 1016.3 1012.9 1012.8 1021.0 1027.4 1032.4 1037.3 1025.2 MAX. QFF PRESSURE IN HPA 1037.7 1044.4 1038.9 1036.7 1028.7 1022.4 1017.1 1017.4 1026.8 1034.0 1044.6 1047.4 1047.4 DAY 11 23 8 5 17 5 6 29 19 26 28 18 MIN. QFF PRESSURE IN HPA 1023.7 1018.1 1020.0 1017.1 1011.5 1010.8 1010.8 1007.0 1011.4 1016.2 1019.0 1029.7 1007.0 DAY 13 14 5 22 12 15 10 2 5 21 22 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.0 -0.9 6.5 13.1 16.6 23.0 28.1 26.8 22.1 15.8 7.8 6.1 13.8 MINIMUN AIR TEMPERATURE (C) -2.0 -3.2 3.6 9.3 12.4 18.3 23.4 22.2 17.8 12.0 4.9 3.7 10.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 2 27 26 3 0 0 0 58 DAYS WITH MINIMUM TEMP. <=-4 8 10 1 0 0 0 0 0 0 0 0 2 21 DAYS WITH FREEZING MIN.<= 0 26 20 3 0 0 0 0 0 0 0 0 6 55 TEMPERATURE RECORDS LOWEST(C) -11.8 -13.4 -4.0 1.0 3.8 12.0 19.0 16.6 12.0 3.4 2.0 -5.8 -13.4 DAY 28 12 26 7 6 2 6 30 30 22 24 27 MAXIMUM AIR TEMPERATURE (C) 2.8 1.9 10.1 17.1 21.1 27.8 33.3 32.2 27.3 20.3 11.5 9.6 17.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 10 28 27 5 0 0 0 70 DAYS WITH MAXIMUM TEMP. <= 0 8 10 0 0 0 0 0 0 0 0 0 4 22 TEMPERATURE RECORDS HIGHEST(C) 12.6 10.8 17.4 27.2 27.0 32.6 36.2 36.2 31.0 27.6 19.2 17.8 36.2 DAY 1 19 30 24 29 16 18 19 10 13 1 3 DIF. BETWEEN (MAX.-MIN.) (C) 4.8 5.1 6.5 7.8 8.7 9.5 9.9 10.0 9.5 8.3 6.6 5.9 7.7 MEAN DAILY TEMP. (MDT) (C) 0.4 -0.6 6.8 13.2 16.8 23.1 28.3 27.2 22.5 16.2 8.2 6.7 14.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.7 1.8 71.5 226.9 192.0 60.2 7.3 0.0 0.0 561.4 HEATING DEG. DAYS(BASE 18 0C) 545.4 522.0 346.3 153.0 59.7 0.9 0.0 0.0 2.2 88.8 292.6 351.5 2362.4 DEWPOINT (MEAN C) -6.2 -7.2 -2.1 1.1 3.7 2.8 5.7 5.6 2.7 0.0 -0.3 -2.8 0.3 MIXING RATIO (G/KG) 3.01 2.84 4.05 5.14 6.07 5.74 7.14 7.03 5.68 4.78 4.52 3.83 4.99 VAPOUR PRESSURE (HPA) 4.06 3.82 5.44 6.92 8.14 7.69 9.53 9.39 7.63 6.46 6.11 5.17 6.70 SATURATION DEF. (HPA) 2.25 2.23 4.49 8.98 11.47 21.01 29.08 26.70 19.58 12.29 4.82 4.78 12.31 RELATIVE HUMIDITY (MEAN %) 68 66 58 47 46 29 26 28 30 37 60 57 46 RELATIVE HUMIDITY (MAX. %) 77 77 73 67 62 42 36 40 42 50 74 68 59 RELATIVE HUMIDITY (MIN. %) 57 53 41 32 31 18 17 19 20 24 44 43 33 RELATIVE HUMIDITY (MEAN% 03UTC) 71 70 66 57 56 40 35 37 41 46 68 61 54 RELATIVE HUMIDITY (MEAN% 09UTC) 68 64 53 42 41 25 24 24 26 32 56 54 42 RELATIVE HUMIDITY (MEAN% 15UTC) 66 62 50 41 39 20 19 20 23 31 54 54 40 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 163.4 195.9 109.8 69.0 43.5 1.2 0.0 6.3 0.6 11.7 55.4 86.0 742.8 DAYS WITH PRECIPITATION >=10 5 8 3 2 1 0 0 0 0 0 3 3 25 DAYS WITH PRECIPITATION >= 5 7 9 7 4 3 0 0 0 0 1 3 4 38 DAYS WITH PRECIPITATION >= 1 9 13 8 8 5 1 0 2 0 3 5 5 59 DAYS WITH PRECIPITATION 15 13 12 11 7 3 0 3 1 6 7 6 84 GREATEST DAILY PRECIPITATION 47.0 37.0 43.0 29.0 23.0 1.0 0.0 3.0 0.6 7.8 23.4 26.0 47.0 DAY 24 21 10 15 3 2 ** 9 30 4 22 16 DAY WITH THUNDER STORM 0 1 2 2 5 0 0 1 0 2 2 1 16 DAYS WITH SNOW OR SLEET 14 12 2 3 0 0 0 0 0 0 0 2 33 DAYS WITH DUST 0 0 0 0 1 5 3 1 0 2 0 0 12 WIND DIRECTION (PREVAILING) 180 315 180 180 360 225 315 360 225 180 315 180 315 PREVAILING WIND SPEED(KNOTS) 11.1 8.6 11.2 10.8 9.7 9.4 9.6 10.7 8.0 9.4 8.6 7.5 9.4 PREVAILING WIND PERCENT 19.0 22.3 32.7 22.5 14.1 22.5 23.4 16.5 24.6 14.5 16.3 13.7 13.4 CALMS PERCENT OF WIND 54.0 51.3 31.9 31.3 39.1 30.4 24.2 34.7 37.9 46.8 48.8 49.6 39.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 196 272 192 236 275 280 311 306 254 209 270 254 260 VECTOR WIND MAGNITUDE(KNOTS) 1.1 1.2 5.1 2.0 1.5 3.1 4.8 3.4 2.6 1.6 1.0 1.1 1.7 WIND STEADINESES (MEAN %) 25.6 28.6 75.0 27.8 25.0 44.9 67.6 56.7 51.0 34.8 24.4 25.0 30.4 WIND SPEED (MEAN KNOTS) 4.3 4.2 6.8 7.2 6.0 6.9 7.1 6.0 5.1 4.6 4.1 4.4 5.6 FASTEST WIND DIRECTION 170 170 170 180 180 220 260 330 240 170 350 170 170 FASTEST WIND SPEED (KNOTS) 39 23 33 27 29 31 21 19 19 29 19 23 39 DAY 31 1 23 1 9 17 19 9 3 17 10 17 DAYS WITH SKY CLEAR (0-2)/8 7 13 11 12 16 29 29 30 29 19 12 17 224 DAYS WITH P.CLOUDY (3-6)/8 11 5 10 13 12 1 2 1 1 10 15 10 91 DAYS WITH CLOUDY (7-8)/8 13 10 10 5 3 0 0 0 0 2 3 4 50 DAYS WITH VISIBILITY =< 2 KM 11 9 4 3 3 3 0 0 0 2 4 4 43 DURATION OF SUNSHINE HOURS 120.6 156.0 210.6 256.5 313.0 376.1 382.4 364.2 321.9 267.8 192.8 203.2 3165.1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 843.8 842.4 842.6 844.9 843.1 841.3 840.4 841.1 843.7 847.2 847.1 847.1 843.7 MAX. QFE PRESSURE IN HPA 850.8 850.7 848.3 851.2 847.3 846.6 844.6 844.7 846.7 854.2 853.8 853.8 854.2 DAY-HOUR 9- 6 16- 9 28-18 6- 6 17- 9 7- 6 19- 6 30- 6 23- 6 23- 6 23- 9 29- 6 MIN. QFE PRESSURE IN HPA 830.3 834.0 834.2 838.0 834.5 835.9 836.1 836.0 840.3 839.7 838.9 835.1 830.3 DAY-HOUR 23- 3 1-15 24- 3 2-15 3- 3 20-12 6- 0 8-12 12- 0 19-15 5-12 23-15 MEAN QNH PRESSURE IN HPA 1031.4 1029.8 1030.1 1032.7 1030.7 1028.6 1027.5 1028.3 1031.4 1035.6 1035.3 1035.4 1031.4 MAX. QNH PRESSURE IN HPA 1039.7 1039.6 1036.8 1040.2 1035.6 1034.8 1032.4 1032.6 1034.9 1043.7 1043.3 1043.3 1043.7 DAY-HOUR 9- 6 16- 9 28-18 6- 6 17- 9 7- 6 19- 6 30- 6 23- 6 23- 6 23- 9 29- 6 MIN. QNH PRESSURE IN HPA 1015.6 1020.0 1020.2 1024.7 1020.5 1022.2 1022.4 1022.3 1027.4 1026.7 1025.7 1021.3 1015.6 DAY-HOUR 23- 3 1-15 24- 3 2-15 3- 3 20-12 6- 0 8-12 12- 0 19-15 5-12 23-15 MEAN QFF PRESSURE IN HPA 1034.9 1034.1 1028.7 1026.6 1022.0 1015.7 1011.3 1012.9 1019.1 1027.7 1033.0 1034.4 1025.0 MAX. QFF PRESSURE IN HPA 1045.9 1047.5 1039.9 1041.2 1027.6 1024.4 1016.8 1020.2 1026.3 1042.0 1042.8 1049.7 1049.7 DAY-HOUR 28-18 15- 6 26- 9 6- 6 22- 6 7- 6 8- 6 30- 6 30-18 23- 6 23-15 31- 6 MIN. QFF PRESSURE IN HPA 1017.6 1020.5 1017.2 1016.0 1015.6 1007.9 1006.7 1005.4 1013.4 1017.9 1020.0 1020.8 1005.4 DAY-HOUR 3- 0 1-15 23-15 2- 9 3- 3 20-12 24-15 8-12 11- 0 19-15 5-12 23-15 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 843.9 842.1 842.3 844.5 842.7 841.1 840.3 841.0 843.5 847.1 847.0 847.1 843.6 MAX. QFE PRESSURE IN HPA 849.9 849.6 847.9 849.6 846.0 845.6 843.3 844.4 846.1 852.7 851.1 853.6 853.6 DAY 9 16 29 6 18 7 20 30 23 23 23 31 MIN. QFE PRESSURE IN HPA 830.8 835.4 834.9 839.1 834.6 836.2 836.1 836.9 840.3 840.0 842.2 837.0 830.8 DAY 23 7 24 2 3 20 6 8 12 20 8 24 MEAN QNH PRESSURE IN HPA 1031.6 1029.5 1029.8 1032.4 1030.3 1028.4 1027.3 1028.2 1031.1 1035.3 1035.3 1035.4 1031.2 MAX. QNH PRESSURE IN HPA 1038.7 1038.3 1036.3 1038.3 1034.1 1033.6 1030.9 1032.2 1034.2 1042.0 1040.1 1043.0 1043.0 DAY 9 16 29 6 18 7 20 30 23 23 23 31 MIN. QNH PRESSURE IN HPA 1016.2 1021.6 1021.0 1026.0 1020.7 1022.5 1022.4 1023.4 1027.4 1027.0 1029.6 1023.5 1016.2 DAY 23 7 24 2 3 20 6 8 12 20 8 24 MEAN QFF PRESSURE IN HPA 1034.7 1033.5 1028.0 1026.0 1021.4 1015.3 1010.9 1012.3 1018.2 1027.0 1032.4 1033.7 1024.5 MAX. QFF PRESSURE IN HPA 1044.6 1045.9 1036.5 1038.3 1026.2 1023.0 1014.6 1019.1 1023.0 1039.3 1039.4 1048.3 1048.3 DAY 29 15 26 6 7 7 20 30 27 23 23 31 MIN. QFF PRESSURE IN HPA 1017.6 1023.0 1018.7 1016.9 1016.2 1007.9 1006.8 1006.6 1013.4 1019.5 1023.3 1023.3 1006.6 DAY 3 1 24 2 3 20 5 8 11 20 5 24 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 843.5 842.1 842.4 844.7 843.1 841.5 840.8 841.3 843.7 847.2 847.1 846.9 843.7 MAX. QFE PRESSURE IN HPA 849.4 849.6 847.9 850.1 846.6 845.9 843.8 844.2 846.2 853.0 851.7 853.2 853.2 DAY 9 16 29 6 22 7 20 30 23 23 23 31 MIN. QFE PRESSURE IN HPA 830.3 835.8 834.2 838.4 834.5 836.2 836.1 836.7 840.5 840.0 841.5 838.0 830.3 DAY 23 7 24 2 3 20 6 8 12 20 8 24 MEAN QNH PRESSURE IN HPA 1031.2 1029.4 1029.9 1032.5 1030.6 1028.8 1027.9 1028.6 1031.4 1035.5 1035.3 1035.2 1031.4 MAX. QNH PRESSURE IN HPA 1038.1 1038.3 1036.3 1038.9 1034.8 1034.0 1031.5 1032.0 1034.3 1042.3 1040.8 1042.6 1042.6 DAY 9 16 29 6 22 7 20 30 23 23 23 31 MIN. QNH PRESSURE IN HPA 1015.6 1022.1 1020.2 1025.1 1020.5 1022.5 1022.4 1023.1 1027.6 1027.0 1028.8 1024.7 1015.6 DAY 23 7 24 2 3 20 6 8 12 20 8 24 MEAN QFF PRESSURE IN HPA 1034.9 1034.0 1028.8 1026.9 1022.3 1016.2 1011.9 1013.4 1019.5 1028.1 1033.5 1034.5 1025.3 MAX. QFF PRESSURE IN HPA 1044.4 1045.8 1038.3 1040.0 1026.9 1023.9 1015.9 1019.4 1023.8 1040.7 1040.9 1048.6 1048.6 DAY 29 15 26 6 22 7 20 30 27 23 23 31 MIN. QFF PRESSURE IN HPA 1017.6 1024.2 1019.3 1016.5 1015.6 1008.6 1007.9 1007.7 1013.7 1019.6 1025.8 1022.4 1007.7 DAY 3 1 23 2 3 20 5 8 11 20 5 16 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 844.4 843.0 843.2 845.5 843.7 842.0 841.3 842.0 844.5 848.1 847.9 847.8 844.4 MAX. QFE PRESSURE IN HPA 850.8 850.6 848.0 851.2 847.2 846.6 844.6 844.7 846.7 854.2 853.3 853.8 854.2 DAY 9 16 28 6 17 7 19 30 23 23 23 29 MIN. QFE PRESSURE IN HPA 833.3 836.3 834.8 838.4 834.5 836.6 836.7 837.1 841.1 840.2 842.3 839.1 833.3 DAY 23 5 24 2 5 20 6 8 12 20 8 16 MEAN QNH PRESSURE IN HPA 1032.2 1030.6 1030.8 1033.5 1031.4 1029.3 1028.5 1029.3 1032.3 1036.5 1036.3 1036.3 1032.3 MAX. QNH PRESSURE IN HPA 1039.7 1039.5 1036.4 1040.2 1035.5 1034.8 1032.4 1032.6 1034.9 1043.7 1042.7 1043.3 1043.7 DAY 9 16 28 6 17 7 19 30 23 23 23 29 MIN. QNH PRESSURE IN HPA 1019.1 1022.7 1020.9 1025.1 1020.5 1023.0 1023.1 1023.6 1028.3 1027.3 1029.7 1026.0 1019.1 DAY 23 5 24 2 5 20 6 8 12 20 8 16 MEAN QFF PRESSURE IN HPA 1036.0 1035.1 1029.7 1027.6 1022.8 1016.7 1012.6 1014.3 1020.3 1029.1 1034.3 1035.7 1026.2 MAX. QFF PRESSURE IN HPA 1045.1 1047.5 1039.8 1041.2 1027.6 1024.4 1016.8 1020.2 1024.4 1042.0 1042.0 1049.7 1049.7 DAY 28 15 26 6 22 7 8 30 29 23 23 31 MIN. QFF PRESSURE IN HPA 1019.8 1022.7 1020.9 1016.6 1016.1 1008.9 1007.9 1007.7 1013.8 1019.9 1025.4 1023.5 1007.7 DAY 3 1 24 2 5 20 5 8 11 20 5 16 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 844.3 843.0 843.1 845.4 843.7 841.8 841.0 841.6 844.1 847.7 847.4 847.4 844.2 MAX. QFE PRESSURE IN HPA 850.5 850.7 847.8 850.4 847.3 846.6 844.5 844.2 846.6 853.5 853.8 853.8 853.8 DAY 9 16 28 6 17 7 19 14 22 23 23 29 MIN. QFE PRESSURE IN HPA 834.0 835.7 835.5 838.1 836.0 836.4 836.8 836.9 840.9 840.5 840.6 837.8 834.0 DAY 24 6 24 2 5 20 6 8 12 20 5 23 MEAN QNH PRESSURE IN HPA 1032.0 1030.6 1030.6 1033.4 1031.4 1029.2 1028.2 1028.9 1031.9 1036.1 1035.7 1035.8 1032.0 MAX. QNH PRESSURE IN HPA 1039.4 1039.6 1036.2 1039.3 1035.6 1034.8 1032.3 1032.0 1034.8 1042.9 1043.3 1043.3 1043.3 DAY 9 16 28 6 17 7 19 14 22 23 23 29 MIN. QNH PRESSURE IN HPA 1020.0 1022.0 1021.7 1024.8 1022.3 1022.8 1023.3 1023.4 1028.1 1027.6 1027.7 1024.4 1020.0 DAY 24 6 24 2 5 20 6 8 12 20 5 23 MEAN QFF PRESSURE IN HPA 1035.3 1034.6 1029.1 1027.0 1022.4 1016.1 1011.7 1013.1 1019.2 1028.0 1033.1 1034.6 1025.3 MAX. QFF PRESSURE IN HPA 1043.7 1046.7 1039.9 1039.5 1026.3 1023.8 1016.0 1019.1 1022.9 1040.5 1042.6 1048.9 1048.9 DAY 29 15 26 6 17 7 19 30 28 23 23 29 MIN. QFF PRESSURE IN HPA 1020.4 1021.8 1020.3 1016.0 1018.3 1008.5 1008.2 1006.9 1013.7 1021.0 1023.5 1023.0 1006.9 DAY 3 1 23 2 3 20 5 8 11 20 5 16 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 843.2 842.1 842.1 844.6 842.9 840.9 839.9 840.5 843.1 846.7 846.4 846.4 843.2 MAX. QFE PRESSURE IN HPA 849.1 849.6 847.5 848.8 846.9 845.3 844.2 842.9 845.8 851.6 853.2 852.6 853.2 DAY 9 15 28 21 12 7 19 27 22 23 23 29 MIN. QFE PRESSURE IN HPA 833.3 834.6 835.9 838.3 834.7 835.9 836.6 836.0 840.7 840.0 838.9 835.8 833.3 DAY 24 1 23 2 5 20 5 8 11 20 5 23 MEAN QNH PRESSURE IN HPA 1030.8 1029.5 1029.5 1032.5 1030.5 1028.1 1027.0 1027.6 1030.6 1034.9 1034.6 1034.5 1030.8 MAX. QNH PRESSURE IN HPA 1037.7 1038.3 1035.8 1037.4 1035.1 1033.3 1032.0 1030.4 1033.8 1040.7 1042.6 1041.9 1042.6 DAY 9 15 28 21 12 7 19 27 22 23 23 29 MIN. QNH PRESSURE IN HPA 1019.1 1020.7 1022.2 1025.0 1020.8 1022.2 1023.0 1022.3 1027.8 1027.0 1025.7 1022.1 1019.1 DAY 24 1 23 2 5 20 5 8 11 20 5 23 MEAN QFF PRESSURE IN HPA 1033.9 1033.4 1027.7 1026.1 1021.6 1015.1 1010.5 1011.7 1017.9 1026.6 1031.7 1033.1 1024.1 MAX. QFF PRESSURE IN HPA 1043.8 1046.1 1035.9 1036.6 1025.8 1022.2 1015.7 1017.8 1022.6 1037.9 1041.7 1047.1 1047.1 DAY 29 15 26 5 12 7 19 30 30 23 23 29 MIN. QFF PRESSURE IN HPA 1020.9 1020.8 1017.9 1016.9 1016.4 1007.9 1006.9 1005.4 1013.8 1020.4 1020.0 1021.3 1005.4 DAY 3 1 23 2 14 20 24 8 11 19 5 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M MEANS AND EXTREMES FOR THE YEAR 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 843.4 841.9 842.1 844.3 842.5 840.6 839.4 840.2 843.1 846.7 846.7 846.7 843.1 MAX. QFE PRESSURE IN HPA 849.2 849.1 847.5 848.8 846.3 844.7 843.8 842.9 845.9 851.7 853.1 852.5 853.1 DAY 9 16 28 5 12 7 19 27 22 12 23 29 MIN. QFE PRESSURE IN HPA 833.8 834.0 834.7 838.0 835.7 835.9 836.3 836.3 840.7 839.7 839.3 835.1 833.8 DAY 22 1 23 2 5 20 5 8 11 19 5 23 MEAN QNH PRESSURE IN HPA 1031.0 1029.3 1029.5 1032.0 1029.9 1027.7 1026.4 1027.3 1030.6 1034.9 1034.9 1034.9 1030.7 MAX. QNH PRESSURE IN HPA 1037.9 1037.7 1035.8 1037.4 1034.4 1032.6 1031.5 1030.4 1034.0 1040.8 1042.4 1041.7 1042.4 DAY 9 16 28 5 12 7 19 27 22 12 23 29 MIN. QNH PRESSURE IN HPA 1019.7 1020.0 1020.8 1024.7 1022.0 1022.2 1022.7 1022.7 1027.8 1026.7 1026.2 1021.3 1019.7 DAY 22 1 23 2 5 20 5 8 11 19 5 23 MEAN QFF PRESSURE IN HPA 1034.7 1033.8 1028.3 1026.3 1021.6 1015.2 1010.4 1012.2 1018.9 1027.6 1033.1 1034.3 1024.7 MAX. QFF PRESSURE IN HPA 1043.7 1046.1 1035.4 1038.0 1025.7 1021.4 1015.7 1017.8 1024.7 1038.9 1042.8 1047.5 1047.5 DAY 28 14 26 5 6 7 19 30 30 23 23 29 MIN. QFF PRESSURE IN HPA 1024.2 1020.5 1017.2 1017.2 1017.2 1008.8 1006.7 1007.1 1014.4 1017.9 1022.9 1020.8 1006.7 DAY 22 1 23 2 14 20 24 8 11 19 5 23 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 843.8 842.5 842.9 845.0 843.2 841.2 840.2 841.2 843.9 847.3 847.2 847.2 843.8 MAX. QFE PRESSURE IN HPA 849.6 849.5 848.3 849.5 846.8 845.4 844.2 843.6 846.4 852.2 852.5 853.0 853.0 DAY 9 16 28 5 11 14 19 27 22 23 23 30 MIN. QFE PRESSURE IN HPA 832.9 834.8 835.4 840.1 836.6 836.7 837.0 837.4 841.2 839.7 841.2 835.4 832.9 DAY 22 1 23 30 3 20 4 8 11 19 5 23 MEAN QNH PRESSURE IN HPA 1031.5 1029.9 1030.4 1032.9 1030.7 1028.5 1027.3 1028.4 1031.6 1035.7 1035.5 1035.5 1031.5 MAX. QNH PRESSURE IN HPA 1038.3 1038.2 1036.8 1038.2 1035.0 1033.4 1032.0 1031.3 1034.6 1041.4 1041.7 1042.3 1042.3 DAY 9 16 28 5 11 14 19 27 22 23 23 30 MIN. QNH PRESSURE IN HPA 1018.7 1020.9 1021.6 1027.1 1023.0 1023.1 1023.5 1024.0 1028.4 1026.7 1028.4 1021.6 1018.7 DAY 22 1 23 30 3 20 4 8 11 19 5 23 MEAN QFF PRESSURE IN HPA 1035.3 1034.5 1029.2 1026.9 1022.2 1016.0 1011.6 1013.5 1019.9 1028.2 1033.5 1035.1 1025.5 MAX. QFF PRESSURE IN HPA 1045.9 1047.0 1037.3 1038.7 1027.2 1021.8 1015.6 1018.8 1026.3 1039.5 1041.6 1048.7 1048.7 DAY 28 14 26 5 6 6 19 30 30 23 23 30 MIN. QFF PRESSURE IN HPA 1020.5 1022.0 1019.2 1018.4 1016.3 1009.1 1008.1 1008.1 1014.8 1019.6 1026.0 1022.0 1008.1 DAY 2 1 23 30 2 20 4 8 11 19 5 23 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 843.7 842.5 842.9 844.9 843.2 841.4 840.5 841.4 843.9 847.3 847.1 847.2 843.8 MAX. QFE PRESSURE IN HPA 849.4 849.4 848.2 849.6 846.8 845.5 844.2 844.4 846.4 852.6 851.6 853.2 853.2 DAY 8 15 28 5 11 6 19 29 30 22 23 30 MIN. QFE PRESSURE IN HPA 832.0 835.4 834.9 839.0 835.4 837.2 837.0 837.4 840.9 839.8 841.9 836.0 832.0 DAY 22 6 23 15 2 20 4 8 11 19 5 23 MEAN QNH PRESSURE IN HPA 1031.4 1030.0 1030.5 1032.8 1030.8 1028.6 1027.6 1028.7 1031.6 1035.7 1035.4 1035.5 1031.5 MAX. QNH PRESSURE IN HPA 1038.1 1038.1 1036.7 1038.3 1035.0 1033.5 1032.0 1032.2 1034.6 1041.9 1040.7 1042.6 1042.6 DAY 8 15 28 5 11 6 19 29 30 22 23 30 MIN. QNH PRESSURE IN HPA 1017.6 1021.6 1021.0 1025.8 1021.6 1023.7 1023.5 1024.0 1028.1 1026.8 1029.3 1022.3 1017.6 DAY 22 6 23 15 2 20 4 8 11 19 5 23 MEAN QFF PRESSURE IN HPA 1034.8 1034.0 1028.8 1026.4 1021.8 1015.5 1011.2 1012.9 1019.1 1027.5 1032.8 1034.4 1024.9 MAX. QFF PRESSURE IN HPA 1045.0 1046.5 1037.3 1038.4 1026.6 1022.3 1015.2 1019.1 1025.9 1039.4 1040.4 1048.3 1048.3 DAY 28 14 26 5 6 6 19 29 30 22 23 30 MIN. QFF PRESSURE IN HPA 1018.3 1022.4 1019.3 1018.1 1016.1 1009.4 1007.3 1007.2 1014.6 1020.0 1025.3 1022.3 1007.2 DAY 2 1 23 30 2 19 4 8 11 19 4 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 M CLIMATOLOGICAL NORMALS FOR THE PERIOD 1986-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.7 1.3 6.1 11.9 16.8 23.4 26.9 26.7 22.4 15.9 8.3 3.2 13.6 MINIMUN AIR TEMPERATURE (C) -3.5 -3.1 1.3 7.1 11.8 17.4 21.2 20.8 17.1 11.5 4.3 -0.5 8.8 DAYS WITH MINIMUM TEMP. >=21 0.0 0.0 0.0 0.0 0.0 3.8 18.6 16.1 2.3 0.1 0.0 0.0 40.9 DAYS WITH MINIMUM TEMP. <=-4 13.1 10.4 3.5 0.2 0.0 0.0 0.0 0.0 0.0 0.0 1.3 6.3 34.8 DAYS WITH FREEZING MIN.<= 0 24.5 20.8 12.1 1.4 0.1 0.0 0.0 0.0 0.0 0.0 4.0 16.8 79.7 TEMPERATURE RECORDS LOWEST(C) -25.0 -19.6 -16.6 -7.0 -1.8 7.8 13.0 9.6 5.8 2.6 -9.4 -14.0 -25.0 YEAR-DAY 92-27 89-14 92-10 97-11 92- 4 94-29 92-12 91-13 95-20 90-15 95-26 94- 7 92-27 MAXIMUM AIR TEMPERATURE (C) 1.2 2.3 7.6 14.8 20.5 27.0 31.2 31.0 26.6 19.4 10.7 4.8 16.4 DAYS WITH MAXIMUM TEMP. >=30 0.0 0.0 0.0 0.0 0.1 6.7 21.4 21.5 3.7 0.0 0.0 0.0 53.4 DAYS WITH MAXIMUM TEMP. <= 0 12.4 8.9 3.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.6 5.1 30.2 TEMPERATURE RECORDS HIGHEST(C) 16.0 13.8 21.2 27.2 32.0 35.2 39.6 38.2 34.4 29.6 20.0 18.0 39.6 YEAR-DAY 0- 1 4-28 1-28 5-24 99-30 98-23 88-11 98-29 3- 4 97-18 98-21 98-10 88-11 DIF. BETWEEN (MAX.-MIN.) (C) 4.7 5.4 6.3 7.7 8.7 9.6 10.0 10.2 9.5 7.9 6.4 5.3 7.6 MEAN DAILY TEMP. (MDT) (C) -1.2 -0.4 4.4 11.0 16.1 22.3 26.3 25.9 21.9 15.7 7.6 2.3 12.7 STANDARD DEVIATION OF MDT(C) 2.75 2.77 3.39 2.15 2.16 1.69 1.39 1.84 1.31 1.65 1.88 2.90 2.16 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.1 3.9 57.7 147.4 146.1 43.5 2.2 0.0 0.0 400.9 HEATING DEG. DAYS(BASE 18 0C) 543.3 497.0 390.0 193.9 73.2 4.0 0.0 0.2 4.5 81.5 290.9 451.7 2530.2 DEWPOINT (MEAN C) -4.2 -4.6 -1.6 1.8 3.1 4.3 7.2 5.7 2.5 2.4 -0.2 -2.9 1.1 MIXING RATIO (G/KG) 3.47 3.41 4.24 5.42 5.92 6.45 7.99 7.21 5.71 5.65 4.67 3.85 5.33 VAPOUR PRESSURE (HPA) 4.68 4.59 5.66 7.21 7.85 8.54 10.52 9.53 7.58 7.53 6.29 5.17 7.10 SATURATION DEF. (HPA) 1.92 2.38 4.19 7.32 12.15 21.09 25.82 26.46 20.24 11.19 5.07 2.86 11.72 RELATIVE HUMIDITY (MEAN %) 73 68 62 54 44 31 31 29 29 44 59 68 49 RELATIVE HUMIDITY (MAX. %) 83 81 78 70 58 44 43 41 42 59 73 80 63 RELATIVE HUMIDITY (MIN. %) 68 64 56 45 36 27 26 24 24 37 51 63 43 RELATIVE HUMIDITY (MEAN% 03UTC) 77 74 66 63 53 39 40 37 38 52 66 73 57 RELATIVE HUMIDITY (MEAN% 09UTC) 75 72 65 53 44 33 33 31 30 45 60 71 51 RELATIVE HUMIDITY (MEAN% 15UTC) 71 66 58 50 37 24 24 22 24 42 56 66 45 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 134.6 108.3 128.2 124.3 50.7 4.8 1.8 1.1 2.8 41.4 118.5 149.5 866.0 DAYS WITH PRECIPITATION >=10 4.3 3.8 4.4 4.1 1.7 0.1 0.1 0.0 0.1 1.6 3.8 4.9 28.9 DAYS WITH PRECIPITATION >= 5 7.3 6.1 7.3 6.5 3.1 0.3 0.1 0.1 0.2 2.6 5.1 6.9 45.6 DAYS WITH PRECIPITATION >= 1 11.3 9.9 10.8 10.1 5.9 1.1 0.5 0.4 0.7 4.7 7.8 10.2 73.4 DAYS WITH PRECIPITATION 13.9 11.6 12.8 11.9 8.0 1.7 0.8 0.6 1.1 6.9 9.7 12.6 91.6 GREATEST DAILY PRECIPITATION 69.0 82.0 132.0 94.0 47.0 22.0 12.0 5.0 13.0 52.0 100.0 98.0 132.0 YEAR-DAY 2- 3 99-18 98-17 95-19 4- 1 95- 3 96-13 88- 9 95-20 86-23 3-11 91- 9 98 DAY WITH THUNDER STORM 0.6 0.9 1.0 3.2 2.8 0.5 0.3 0.2 0.3 1.6 1.1 0.6 13.1 DAYS WITH SNOW OR SLEET 10.7 9.4 6.5 1.2 0.0 0.0 0.0 0.0 0.0 0.1 1.6 7.3 36.8 DAYS WITH DUST 0.2 0.2 0.3 0.7 2.4 1.5 0.6 0.7 0.9 1.1 0.4 0.1 9.1 WIND DIRECTION (PREVAILING) 180 180 180 180 225 360 360 360 225 225 360 180 360 PREVAILING WIND SPEED(KNOTS) 9.3 10.0 10.8 11.2 10.4 11.0 11.8 11.9 9.0 9.4 9.1 9.0 10.6 PREVAILING WIND PERCENT 15.6 19.3 23.9 23.1 16.3 23.2 38.0 24.0 17.4 15.9 15.5 18.2 16.6 CALMS PERCENT OF WIND 53.3 46.8 41.0 35.0 32.0 24.9 20.5 30.5 33.8 40.4 47.8 49.8 38.0 NO. OF WIND OBSERVATION 234.0 198.4 215.2 196.5 192.3 195.0 192.4 192.6 183.8 190.9 220.0 216.8 2427.9 VECTOR WIND DIRECTION (MEAN) 257 220 205 209 234 299 342 319 270 231 251 228 265 VECTOR WIND MAGNITUDE(KNOTS) 0.7 1.7 2.3 3.2 2.6 2.6 5.1 3.3 2.5 2.1 0.7 1.2 1.5 WIND STEADINESES (MEAN %) 17.5 35.4 41.8 50.0 38.8 36.6 61.4 44.0 41.0 36.8 15.6 25.5 25.4 WIND SPEED (MEAN KNOTS) 4.0 4.8 5.5 6.4 6.7 7.1 8.3 7.5 6.1 5.7 4.5 4.7 5.9 FASTEST WIND DIRECTION 180 180 170 180 180 10 350 270 210 230 180 190 230 FASTEST WIND SPEED (KNOTS) 49 47 51 49 51 39 35 49 29 52 35 49 52 YEAR-DAY 2- 3 1-20 2-26 90- 2 92- 9 1-11 86- 2 91- 6 2-19 89-18 4-18 2-20 89 DAYS WITH SKY CLEAR (0-2)/8 8.7 9.1 9.7 8.6 15.4 26.2 28.5 29.2 27.2 17.0 12.2 7.9 199.7 DAYS WITH P.CLOUDY (3-6)/8 10.1 8.1 9.7 12.3 11.3 3.2 2.5 1.8 2.6 10.8 10.4 11.2 94.0 DAYS WITH CLOUDY (7-8)/8 12.2 10.9 11.6 9.1 4.2 0.6 0.0 0.0 0.2 3.1 7.3 11.6 70.8 DAYS WITH VISIBILITY =< 2 KM 8.3 7.0 5.3 3.2 1.2 0.4 0.5 0.3 0.3 1.0 3.5 7.3 38.3 DURATION OF SUNSHINE HOURS 133.0 138.4 184.0 219.2 288.3 352.8 367.7 357.5 312.0 248.6 180.7 129.8 2912.0 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 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 844.2 842.7 838.0 835.5 833.4 833.8 831.2 832.5 834.3 837.1 844.4 841.4 837.4 MAX. QFE PRESSURE IN HPA 854.6 855.0 853.4 852.8 850.7 847.2 847.2 848.7 851.3 854.2 855.2 855.0 855.2 YEAR-DAY 99- 2 2- 6 2- 6 98-12 3- 1 4- 5 0-30 99-20 4-25 5-23 2-18 4- 3 2-18 MIN. QFE PRESSURE IN HPA 830.2 808.8 805.0 805.0 810.0 812.6 813.0 813.0 815.8 815.2 820.7 810.4 805.0 YEAR-DAY 3-28 98- 8 89-29 90- 2 90-12 91-11 91-13 89- 1 96-22 89-30 90- 9 90-24 89-29 MEAN QNH PRESSURE IN HPA 1032.0 1030.2 1024.7 1021.7 1019.2 1019.7 1016.6 1018.2 1020.3 1023.6 1032.2 1028.7 1023.9 MAX. QNH PRESSURE IN HPA 1044.2 1044.7 1042.8 1042.1 1039.6 1035.5 1035.5 1037.3 1040.3 1043.7 1044.9 1044.7 1044.9 YEAR-DAY 99- 2 2- 6 2- 6 98-12 3- 1 4- 5 0-30 99-20 4-25 5-23 2-18 4- 3 2-18 MIN. QNH PRESSURE IN HPA 1015.5 990.3 985.8 985.8 991.7 994.8 995.2 995.2 998.5 997.8 1004.3 992.2 985.8 YEAR-DAY 3-28 98- 8 89-29 90- 2 90-12 91-11 91-13 89- 1 96-22 89-30 90- 9 90-24 89-29 MEAN QFF PRESSURE IN HPA 1035.2 1033.4 1028.9 1025.2 1021.3 1015.4 1011.8 1013.2 1019.6 1025.7 1032.2 1035.4 1024.8 MAX. QFF PRESSURE IN HPA 1049.8 1047.5 1047.9 1041.2 1035.9 1028.0 1019.7 1021.0 1031.0 1042.0 1046.2 1049.9 1049.9 YEAR-DAY 2-27 5-15 3- 2 5- 6 3- 1 3- 6 2-29 2-31 3-23 5-23 1-20 2-14 2-14 MIN. QFF PRESSURE IN HPA 1017.6 1014.2 1012.4 1012.1 1007.5 1005.1 1004.9 1004.5 1010.6 1012.7 1014.3 1015.9 1004.5 YEAR-DAY 5- 3 1-21 3-26 3-26 1-29 1-17 2-24 2-15 98- 1 98- 1 1-17 2-20 2-15 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 844.5 843.2 842.9 842.6 842.4 841.2 840.0 841.4 844.2 846.1 846.5 846.1 843.4 MAX. QFE PRESSURE IN HPA 853.8 854.2 852.3 851.8 849.8 846.3 844.6 845.3 849.8 852.7 854.2 853.6 854.2 YEAR-DAY 99- 2 2- 6 2-12 98-12 3- 1 4- 6 98-20 1-11 4-27 5-23 2-18 98- 9 2- 6 MIN. QFE PRESSURE IN HPA 830.8 829.0 831.6 834.0 832.4 834.5 835.0 836.2 839.0 836.1 832.0 829.9 829.0 YEAR-DAY 5-23 1-21 3-13 4-17 4-13 1-17 3- 1 2-15 98- 5 3-29 1-18 2-21 1-21 MEAN QNH PRESSURE IN HPA 1032.3 1030.8 1030.4 1030.1 1029.9 1028.5 1027.1 1028.6 1031.9 1034.2 1034.7 1034.2 1031.1 MAX. QNH PRESSURE IN HPA 1043.3 1043.7 1041.5 1040.9 1038.6 1034.4 1032.4 1033.3 1038.6 1042.0 1043.7 1043.0 1043.7 YEAR-DAY 99- 2 2- 6 2-12 98-12 3- 1 4- 6 98-20 1-11 4-27 5-23 2-18 98- 9 2- 6 MIN. QNH PRESSURE IN HPA 1016.2 1014.1 1017.1 1020.0 1018.1 1020.5 1021.1 1022.5 1025.8 1022.4 1017.6 1015.1 1014.1 YEAR-DAY 5-23 1-21 3-13 4-17 4-13 1-17 3- 1 2-15 98- 5 3-29 1-18 2-21 1-21 MEAN QFF PRESSURE IN HPA 1034.8 1032.9 1028.5 1024.7 1020.9 1015.1 1011.3 1012.6 1018.8 1024.9 1031.7 1034.9 1024.2 MAX. QFF PRESSURE IN HPA 1047.6 1045.9 1046.3 1038.3 1035.9 1025.3 1018.2 1019.1 1029.0 1039.3 1045.2 1048.3 1048.3 YEAR-DAY 2-26 5-15 3- 2 5- 6 3- 1 3- 6 98-29 5-30 3-23 5-23 1-20 5-31 5-31 MIN. QFF PRESSURE IN HPA 1017.6 1014.2 1014.3 1012.1 1010.3 1005.3 1004.9 1004.5 1010.6 1013.9 1014.7 1017.1 1004.5 YEAR-DAY 5- 3 1-21 1-24 3-26 4-13 1-17 2-24 2-15 98- 1 98- 2 1-18 2-21 2-15 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 844.0 843.3 842.6 835.2 833.9 833.7 832.0 833.4 834.9 837.8 844.2 843.6 838.2 MAX. QFE PRESSURE IN HPA 854.0 854.2 852.0 851.4 849.9 846.9 846.5 848.1 850.2 853.0 854.2 854.2 854.2 YEAR-DAY 99- 2 2- 6 2-11 98-12 3- 1 4- 6 0-30 99-19 4-27 5-23 2-18 98- 9 98- 9 MIN. QFE PRESSURE IN HPA 830.3 828.6 828.7 805.0 810.0 813.0 813.3 813.0 815.8 818.0 821.0 812.0 805.0 YEAR-DAY 5-23 1-21 3-26 90- 2 90-13 89- 9 91-15 89- 1 96-22 86-23 90- 9 90-25 90- 2 MEAN QNH PRESSURE IN HPA 1031.7 1030.9 1030.1 1021.3 1019.8 1019.6 1017.7 1019.2 1021.0 1024.4 1032.0 1031.3 1024.9 MAX. QNH PRESSURE IN HPA 1043.5 1043.7 1041.1 1040.4 1038.7 1035.1 1034.7 1036.6 1039.0 1042.3 1043.7 1043.7 1043.7 YEAR-DAY 99- 2 2- 6 2-11 98-12 3- 1 4- 6 0-30 99-19 4-27 5-23 2-18 98- 9 98- 9 MIN. QNH PRESSURE IN HPA 1015.6 1013.6 1013.7 985.8 991.7 995.2 995.6 995.2 998.5 1001.1 1004.7 994.0 985.8 YEAR-DAY 5-23 1-21 3-26 90- 2 90-13 89- 9 91-15 89- 1 96-22 86-23 90- 9 90-25 90- 2 MEAN QFF PRESSURE IN HPA 1035.0 1033.5 1029.1 1016.2 1011.6 1006.8 1002.4 1004.2 1009.1 1018.1 1029.7 1032.6 1019.0 MAX. QFF PRESSURE IN HPA 1048.1 1045.9 1046.5 1040.0 1035.5 1025.7 1019.3 1021.9 1030.1 1040.7 1045.7 1048.9 1048.9 YEAR-DAY 99- 2 2- 6 3- 2 5- 6 3- 1 3- 6 2-29 99-20 3-23 5-23 1-20 2-14 2-14 MIN. QFF PRESSURE IN HPA 1017.6 1014.9 1012.4 983.9 984.6 981.2 980.4 980.1 987.8 992.6 997.6 999.8 980.1 YEAR-DAY 5- 3 3-20 3-26 90- 2 90- 2 90-26 89- 5 89- 1 90- 5 90-14 90- 9 90-25 89- 1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION SARDASHT (40725) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 9 N LONGITUDE 45 30 E DATA PROCESSING CENTER ELEVATION 1670.0 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 829.8 829.8 829.9 830.7 831.2 829.7 828.5 829.8 832.2 834.1 833.2 831.9 830.9 MAX. QFE PRESSURE IN HPA 854.6 855.0 853.0 852.2 850.7 847.2 847.2 848.7 851.3 854.2 855.2 855.0 855.2 YEAR-DAY 99- 2 2- 6 2- 6 98-12 3- 1 4- 6 0-30 99-20 4-25 5-23 2-18 4- 3 2-18 MIN. QFE PRESSURE IN HPA 808.8 804.0 802.3 808.5 811.0 813.7 813.9 813.0 817.7 819.0 813.0 806.0 802.3 YEAR-DAY 98-12 88- 2 88- 4 90- 2 90-13 90-15 91-15 89- 1 89-13 87- 4 93-11 88-26 88- 4 MEAN QNH PRESSURE IN HPA 1015.0 1015.0 1015.2 1016.1 1016.7 1014.8 1013.5 1015.0 1017.9 1020.1 1019.0 1017.5 1016.3 MAX. QNH PRESSURE IN HPA 1044.2 1044.7 1042.3 1041.4 1039.6 1035.5 1035.5 1037.3 1040.3 1043.7 1044.9 1044.7 1044.9 YEAR-DAY 99- 2 2- 6 2- 6 98-12 3- 1 4- 6 0-30 99-20 4-25 5-23 2-18 4- 3 2-18 MIN. QNH PRESSURE IN HPA 990.3 984.6 982.6 989.9 992.9 996.1 996.3 995.2 1000.8 1002.3 995.2 987.0 982.6 YEAR-DAY 98-12 88- 2 88- 4 90- 2 90-13 90-15 91-15 89- 1 89-13 87- 4 93-11 88-26 88- 4 MEAN QFF PRESSURE IN HPA 1036.2 1034.4 1030.3 1026.0 1022.1 1016.5 1013.0 1014.5 1020.9 1027.0 1033.4 1036.5 1025.9 MAX. QFF PRESSURE IN HPA 1049.3 1047.5 1047.9 1041.2 1035.7 1028.0 1019.7 1021.0 1031.0 1042.0 1046.2 1049.8 1049.8 YEAR-DAY 2-27 5-15 3- 2 5- 6 3- 1 3- 6 2-29 2-31 3-23 5-23 1-20 2-14 2-14 MIN. QFF PRESSURE IN HPA 1019.8 1017.2 1013.7 1015.4 1010.8 1006.1 1005.1 1006.5 1012.8 1014.2 1016.5 1016.3 1005.1 YEAR-DAY 5- 3 3-20 1-24 3-20 4-15 1-17 98- 5 4- 3 98- 1 98- 1 1-18 2-21 98- 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 830.0 830.1 830.2 830.9 831.4 829.7 828.5 829.9 832.3 834.1 833.1 831.9 831.0 MAX. QFE PRESSURE IN HPA 853.5 854.6 853.4 852.8 850.4 847.2 846.8 848.0 851.2 853.5 855.1 854.2 855.1 YEAR-DAY 99- 2 2- 6 2- 6 98-12 3- 1 4- 5 0-30 99-19 4-27 5-23 3-25 4- 3 3-25 MIN. QFE PRESSURE IN HPA 809.0 803.0 800.0 808.8 811.1 813.7 814.7 814.0 817.8 816.4 813.2 806.0 800.0 YEAR-DAY 88-18 88- 1 88- 4 90- 1 90-12 90-15 91-14 89- 1 89-13 89-30 86- 8 88-26 88- 4 MEAN QNH PRESSURE IN HPA 1015.2 1015.4 1015.5 1016.3 1016.9 1015.0 1013.5 1015.1 1017.9 1020.1 1018.9 1017.5 1016.4 MAX. QNH PRESSURE IN HPA 1042.9 1044.2 1042.8 1042.1 1039.3 1035.5 1035.0 1036.4 1040.2 1042.9 1044.8 1043.7 1044.8 YEAR-DAY 99- 2 2- 6 2- 6 98-12 3- 1 4- 5 0-30 99-19 4-27 5-23 3-25 4- 3 3-25 MIN. QNH PRESSURE IN HPA 990.5 983.4 979.9 990.3 993.0 996.1 997.2 996.4 1000.9 999.2 995.5 987.0 979.9 YEAR-DAY 88-18 88- 1 88- 4 90- 1 90-12 90-15 91-14 89- 1 89-13 89-30 86- 8 88-26 88- 4 MEAN QFF PRESSURE IN HPA 1035.5 1034.0 1029.4 1025.5 1021.6 1015.8 1012.1 1013.5 1019.8 1025.9 1032.5 1035.6 1025.1 MAX. QFF PRESSURE IN HPA 1049.8 1046.7 1047.8 1039.5 1035.1 1027.0 1018.4 1019.8 1029.0 1040.5 1045.1 1049.9 1049.9 YEAR-DAY 2-27 5-15 3- 2 5- 6 3- 1 3- 6 3- 3 2-31 3-23 5-23 1-20 2-14 2-14 MIN. QFF PRESSURE IN HPA 1018.5 1017.3 1015.7 1015.1 1009.3 1005.3 1005.0 1006.5 1011.7 1013.5 1018.9 1016.4 1005.0 YEAR-DAY 3-28 3-20 1-24 3-20 1-29 1-17 2-24 2-15 3- 5 98- 1 1-18 2-21 2-24 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 829.1 829.2 829.4 830.3 830.8 829.1 827.8 829.1 831.5 833.2 832.3 831.1 830.3 MAX. QFE PRESSURE IN HPA 852.1 852.9 851.5 851.7 850.0 846.4 845.8 846.0 849.7 851.6 853.8 853.7 853.8 YEAR-DAY 99- 2 2- 6 2- 6 98-12 99-28 98-20 0-30 99-19 4-27 4-27 2-18 3-11 2-18 MIN. QFE PRESSURE IN HPA 808.0 800.0 799.3 808.0 811.1 813.0 813.8 814.2 817.0 815.2 812.0 805.8 799.3 YEAR-DAY 98-12 88- 1 88- 4 90- 1 90-12 91-11 91-13 89- 1 89-13 89-30 86- 8 88-26 88- 4 MEAN QNH PRESSURE IN HPA 1014.2 1014.3 1014.5 1015.6 1016.2 1014.2 1012.6 1014.2 1017.0 1019.1 1018.0 1016.6 1015.5 MAX. QNH PRESSURE IN HPA 1041.3 1042.2 1040.6 1040.8 1038.8 1034.6 1033.8 1034.1 1038.4 1040.7 1043.3 1043.1 1043.3 YEAR-DAY 99- 2 2- 6 2- 6 98-12 99-28 98-20 0-30 99-19 4-27 4-27 2-18 3-11 2-18 MIN. QNH PRESSURE IN