STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** 11.8 16.3 21.2 28.8 29.8 27.4 22.6 18.7 13.9 8.1 ***** MINIMUN AIR TEMPERATURE (C) ***** ***** 2.9 9.4 13.9 20.3 20.4 19.4 13.6 10.5 5.3 1.2 ***** DAYS WITH MINIMUM TEMP. >=21 **** **** 0 0 1 10 16 11 0 0 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 **** **** 5 0 0 0 0 0 0 0 0 2 **** DAYS WITH FREEZING MIN.<= 0 **** **** 9 0 0 0 0 0 0 0 1 12 **** TEMPERATURE RECORDS LOWEST(C) ***** ***** -8.4 1.4 5.2 16.0 14.0 15.5 7.0 8.0 -2.0 -4.0 ***** DAY ** ** 12 12 3 22 17 18 12 30 27 11 MAXIMUM AIR TEMPERATURE (C) ***** ***** 16.2 23.3 28.2 35.8 36.4 34.9 29.6 25.7 21.7 14.5 ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** 0 2 11 30 31 30 15 2 0 0 **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** 0 0 0 0 0 0 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C)***** ***** 21.0 33.6 33.0 39.6 39.5 39.0 33.0 31.0 26.0 20.0 ***** DAY ** ** 14 22 21 25 6 11 25 3 12 3 DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** 13.3 13.9 14.3 15.5 16.0 15.5 16.0 15.2 16.4 13.3 ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** 9.6 16.3 21.1 28.0 28.4 27.1 21.6 18.1 13.5 7.9 ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** 0.0 6.5 45.3 210.8 230.2 190.4 37.2 1.3 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** 260.7 82.7 8.2 0.0 0.0 0.0 1.1 22.3 134.6 314.5 ****** DEWPOINT (MEAN C) ***** ***** -5.1 -0.8 3.4 5.7 1.6 3.1 -0.4 -1.3 -7.2 -1.7 ***** MIXING RATIO (G/KG) ****** ****** 3.52 4.70 6.10 7.33 5.81 5.98 4.51 4.36 2.79 4.26 ****** VAPOUR PRESSURE (HPA) ****** ****** 4.71 6.28 8.16 9.73 7.71 7.96 6.05 5.86 3.77 5.72 ****** SATURATION DEF. (HPA) ****** ****** 9.76 13.59 18.19 31.39 35.56 29.96 22.51 16.66 13.29 5.64 ****** RELATIVE HUMIDITY (MEAN %) *** *** 35 38 35 25 18 23 23 28 25 53 *** RELATIVE HUMIDITY (MAX. %) *** *** 54 64 52 37 28 32 36 40 38 67 *** RELATIVE HUMIDITY (MIN. %) *** *** 24 18 21 17 11 14 13 19 15 41 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** 51 54 46 34 24 28 33 36 32 61 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** 29 24 25 20 14 17 16 22 19 46 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** 28 33 29 20 15 18 17 24 20 51 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. ****** ****** 7.6 21.6 34.1 1.0 0.0 0.0 0.0 0.0 0.0 25.4 ****** DAYS WITH PRECIPITATION >=10 **** **** 0 1 1 0 0 0 0 0 0 1 **** DAYS WITH PRECIPITATION >= 5 **** **** 1 1 2 0 0 0 0 0 0 2 **** DAYS WITH PRECIPITATION >= 1 **** **** 2 6 5 1 0 0 0 0 0 3 **** DAYS WITH PRECIPITATION **** **** 5 9 8 1 0 0 0 0 0 3 **** GREATEST DAILY PRECIPITATION ****** ****** 5.0 10.2 16.0 1.0 0.0 0.0 0.0 0.0 0.0 16.0 ****** DAY ** ** 28 7 11 9 ** ** ** ** ** 22 DAY WITH THUNDER STORM **** **** 0 0 3 1 0 0 0 1 0 0 **** DAYS WITH SNOW OR SLEET **** **** 0 0 0 0 0 0 0 0 0 0 **** DAYS WITH DUST **** **** 2 8 9 5 2 4 0 0 0 0 **** WIND DIRECTION (PREVAILING) *** *** 270 225 270 270 315 315 315 225 225 225 *** PREVAILING WIND SPEED(KNOTS) **** **** 16.2 16.6 15.8 11.7 10.4 12.7 11.2 10.4 12.8 14.4 **** PREVAILING WIND PERCENT ***** ***** 36.8 20.7 25.0 14.6 13.3 23.0 19.2 9.3 12.5 15.3 ***** CALMS PERCENT OF WIND ***** ***** 24.5 30.0 27.4 40.8 53.2 41.5 57.1 74.6 75.4 70.6 ***** NO. OF WIND OBSERVATION **** **** 155 237 248 240 248 248 240 248 240 248 2352 VECTOR WIND DIRECTION (MEAN) *** *** 257 264 272 292 324 309 315 274 240 241 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** 8.2 6.1 6.7 3.6 1.8 4.3 3.2 1.8 2.6 3.2 **** WIND STEADINESES (MEAN %) ***** ***** 77.4 62.2 68.4 56.2 35.3 62.3 69.6 69.2 86.7 82.1 ***** WIND SPEED (MEAN KNOTS) **** **** 10.6 9.8 9.8 6.4 5.1 6.9 4.6 2.6 3.0 3.9 **** FASTEST WIND DIRECTION *** *** 270 240 230 270 360 320 320 270 250 240 *** FASTEST WIND SPEED (KNOTS) *** *** 35 49 49 23 23 23 17 19 29 25 *** DAY ** ** 10 17 23 3 8 15 5 28 26 4 DAYS WITH SKY CLEAR (0-2)/8 **** **** 17 14 19 28 30 29 30 31 27 13 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** 10 11 9 2 1 2 0 0 3 11 **** DAYS WITH CLOUDY (7-8)/8 **** **** 4 5 3 0 0 0 0 0 0 7 **** DAYS WITH VISIBILITY =< 2 KM **** **** 1 3 3 2 1 2 0 0 0 0 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 ****** ****** 839.3 839.3 840.2 836.1 835.0 837.1 840.7 842.6 844.6 842.0 ****** MAX. QFE PRESSURE IN HPA ****** ****** 849.4 846.0 845.3 843.2 840.0 843.7 846.6 848.4 851.2 847.6 ****** DAY-HOUR **-** **-** 13- 3 26- 6 14- 6 11- 6 16- 3 31- 6 2- 6 30- 6 4- 6 11- 6 MIN. QFE PRESSURE IN HPA ****** ****** 831.2 830.4 833.0 827.8 831.7 831.4 837.0 836.1 838.1 836.0 ****** DAY-HOUR **-** **-** 22-12 18-12 4-15 27-15 10-12 29-12 5-12 6-12 27-15 4-12 MEAN QNH PRESSURE IN HPA ****** ****** 1015.4 1015.4 1016.5 1011.6 1010.4 1012.9 1017.1 1019.2 1021.6 1018.5 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1027.2 1023.2 1022.4 1020.0 1016.2 1020.6 1023.9 1026.0 1029.3 1025.1 ****** DAY-HOUR **-** **-** 13- 3 26- 6 14- 6 11- 6 16- 3 31- 6 2- 6 30- 6 4- 6 11- 6 MIN. 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QFE PRESSURE IN HPA ****** ****** ****** 833.6 837.0 829.8 832.6 832.6 838.0 837.6 839.4 837.0 ****** DAY ** ** ** 19 5 28 26 2 18 6 28 9 MEAN QNH PRESSURE IN HPA ****** ****** ****** 1016.2 1016.8 1011.7 1010.5 1012.8 1017.0 1019.1 1021.9 1018.7 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1022.1 1020.4 1017.4 1015.1 1017.3 1021.7 1023.9 1026.7 1023.2 ****** DAY ** ** ** 26 29 7 16 31 2 30 4 24 MIN. QNH PRESSURE IN HPA ****** ****** ****** 1008.8 1012.7 1004.3 1007.6 1007.6 1013.9 1013.4 1015.5 1012.7 ****** DAY ** ** ** 19 5 28 26 2 18 6 28 9 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1008.4 1005.8 996.3 994.8 997.7 1005.1 1009.7 1015.7 1016.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1015.3 1011.8 1003.3 1002.3 1005.0 1011.4 1015.6 1021.0 1023.1 ****** DAY ** ** ** 21 3 7 17 31 2 30 19 24 MIN. QFF PRESSURE IN HPA ****** ****** ****** 998.8 1000.0 987.0 990.0 991.8 1001.1 1002.4 1011.5 1008.0 ****** DAY ** ** ** 19 21 27 10 2 18 6 16 4 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 840.1 839.8 841.1 837.2 835.9 838.2 841.6 843.6 845.5 842.6 ****** MAX. QFE PRESSURE IN HPA ****** ****** 849.4 845.0 844.5 842.3 840.0 842.9 845.6 848.1 850.6 845.4 ****** DAY ** ** 13 26 29 11 16 31 2 30 4 11 MIN. QFE PRESSURE IN HPA ****** ****** 832.8 834.3 838.0 831.1 833.6 833.7 839.0 838.8 839.6 838.8 ****** DAY ** ** 10 19 4 27 26 2 18 6 28 4 MEAN QNH PRESSURE IN HPA ****** ****** 1016.4 1016.0 1017.5 1013.0 1011.4 1014.1 1018.1 1020.5 1022.7 1019.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1027.2 1022.1 1021.5 1018.9 1016.2 1019.6 1022.8 1025.7 1028.6 1022.5 ****** DAY ** ** 13 26 29 11 16 31 2 30 4 11 MIN. QNH PRESSURE IN HPA ****** ****** 1007.8 1009.6 1013.9 1005.9 1008.8 1008.9 1015.1 1014.8 1015.8 1014.8 ****** DAY ** ** 10 19 4 27 26 2 18 6 28 4 MEAN QFF PRESSURE IN HPA ****** ****** 1012.7 1008.7 1006.7 997.2 995.2 999.5 1006.9 1011.7 1017.5 1017.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1027.9 1016.3 1013.5 1003.7 1001.6 1008.6 1012.5 1019.1 1023.7 1024.9 ****** DAY ** ** 13 9 3 11 16 31 2 30 4 12 MIN. QFF PRESSURE IN HPA ****** ****** 1000.0 999.4 1001.7 988.7 991.7 992.7 1003.4 1004.7 1011.2 1010.2 ****** DAY ** ** 10 18 21 27 10 2 18 6 16 4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 ****** ****** 840.6 840.3 841.3 837.8 836.2 838.8 842.3 844.3 846.1 843.1 ****** MAX. QFE PRESSURE IN HPA ****** ****** 848.0 846.0 845.3 843.2 840.0 843.7 846.6 848.4 851.2 847.6 ****** DAY ** ** 13 26 14 11 16 31 2 30 4 11 MIN. QFE PRESSURE IN HPA ****** ****** 834.2 834.1 837.0 831.2 834.0 834.4 839.7 839.4 841.5 838.9 ****** DAY ** ** 22 18 4 27 19 2 6 6 28 4 MEAN QNH PRESSURE IN HPA ****** ****** 1016.9 1016.6 1017.7 1013.6 1011.8 1014.8 1018.9 1021.2 1023.4 1019.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1025.6 1023.2 1022.4 1020.0 1016.2 1020.6 1023.9 1026.0 1029.3 1025.1 ****** DAY ** ** 13 26 14 11 16 31 2 30 4 11 MIN. QNH PRESSURE IN HPA ****** ****** 1009.5 1009.4 1012.7 1006.0 1009.2 1009.7 1015.9 1015.5 1018.0 1015.0 ****** DAY ** ** 22 18 4 27 19 2 6 6 28 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1008.6 1006.7 997.7 995.5 1000.2 1007.3 1011.8 1016.9 1017.1 ****** MAX. 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QNH PRESSURE IN HPA ****** ****** 1009.0 1006.3 1010.4 1004.5 1008.1 1008.4 1015.1 1013.8 1017.4 1013.2 ****** DAY ** ** 22 18 4 27 19 29 17 6 16 19 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1007.1 1005.3 996.4 993.9 998.4 1005.4 1009.8 1015.6 1015.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1015.5 1011.9 1004.2 999.0 1007.3 1011.0 1016.5 1021.5 1022.2 ****** DAY ** ** ** 8 14 7 16 31 2 30 4 11 MIN. QFF PRESSURE IN HPA ****** ****** ****** 994.6 1000.8 987.2 990.4 990.9 1001.6 1002.2 1009.4 1006.3 ****** DAY ** ** ** 18 20 27 10 29 18 6 16 4 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 837.9 837.8 838.9 834.8 833.8 835.7 839.5 841.2 843.5 841.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** 846.0 844.0 842.8 840.0 836.1 840.4 842.5 844.7 847.5 845.5 ****** DAY ** ** 12 25 28 2 6 31 1 30 4 11 MIN. 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QFF PRESSURE IN HPA ****** ****** ****** 994.3 999.1 985.1 988.4 989.5 1001.1 1000.4 1009.1 1005.0 ****** DAY ** ** ** 18 21 27 10 29 18 6 16 4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 ****** ****** 838.2 838.1 839.2 834.6 833.7 835.6 839.5 841.4 843.5 841.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** 846.4 845.0 842.8 840.0 837.0 840.4 842.5 845.2 848.0 844.9 ****** DAY ** ** 12 25 28 7 16 31 1 30 4 11 MIN. QFE PRESSURE IN HPA ****** ****** 832.1 830.9 833.0 827.8 831.8 831.4 837.0 836.6 838.1 836.4 ****** DAY ** ** 24 18 4 27 26 29 17 6 27 19 MEAN QNH PRESSURE IN HPA ****** ****** 1014.2 1014.1 1015.3 1009.9 1008.9 1011.1 1015.7 1017.9 1020.3 1017.6 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1023.7 1022.1 1019.5 1016.2 1012.7 1016.7 1019.2 1022.3 1025.6 1022.0 ****** DAY ** ** 12 25 28 7 16 31 1 30 4 11 MIN. QNH PRESSURE IN HPA ****** ****** 1007.0 1005.6 1008.1 1002.0 1006.7 1006.2 1012.7 1012.3 1014.0 1012.0 ****** DAY ** ** 24 18 4 27 26 29 17 6 27 19 MEAN QFF PRESSURE IN HPA ****** ****** 1010.6 1006.7 1004.4 994.0 992.7 996.5 1004.4 1009.0 1015.1 1015.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1024.6 1015.6 1011.8 1001.1 998.2 1005.8 1008.7 1015.4 1020.6 1024.2 ****** DAY ** ** 12 8 11 7 16 31 1 30 4 11 MIN. QFF PRESSURE IN HPA ****** ****** 1001.6 995.6 998.9 984.7 989.1 989.5 1001.6 1001.9 1010.0 1009.7 ****** DAY ** ** 31 18 26 27 10 29 17 6 22 19 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** 839.2 840.2 835.5 834.8 836.8 840.3 842.2 844.0 841.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 844.0 843.8 841.0 837.3 842.5 844.1 846.0 848.7 844.3 ****** DAY ** ** ** 25 28 7 1 31 1 29 3 12 MIN. QFE PRESSURE IN HPA ****** ****** ****** 831.8 835.0 828.9 832.0 832.5 837.0 837.7 838.7 838.0 ****** DAY ** ** ** 18 4 27 19 1 17 6 27 9 MEAN QNH PRESSURE IN HPA ****** ****** ****** 1015.3 1016.4 1011.0 1010.2 1012.5 1016.6 1018.8 1021.0 1018.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1020.9 1020.7 1017.4 1013.1 1019.2 1021.0 1023.2 1026.4 1021.3 ****** DAY ** ** ** 25 28 7 1 31 1 29 3 12 MIN. QNH PRESSURE IN HPA ****** ****** ****** 1006.7 1010.4 1003.3 1006.9 1007.5 1012.7 1013.6 1014.7 1013.9 ****** DAY ** ** ** 18 4 27 19 1 17 6 27 9 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1007.2 1005.3 995.0 993.9 997.9 1004.9 1009.5 1014.5 1015.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1015.8 1010.5 1002.6 997.2 1009.4 1011.3 1016.9 1020.4 1020.9 ****** DAY ** ** ** 8 28 7 16 31 1 31 4 11 MIN. QFF PRESSURE IN HPA ****** ****** ****** 995.9 1000.0 986.2 990.7 992.4 1000.5 1002.6 1009.0 1009.7 ****** DAY ** ** ** 18 20 26 9 28 17 6 22 19 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** 839.6 840.5 836.0 835.2 837.4 840.7 842.3 844.1 841.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** 844.1 844.6 841.0 838.0 843.4 845.1 846.9 849.0 845.0 ****** DAY ** ** ** 20 28 7 5 31 1 29 3 23 MIN. QFE PRESSURE IN HPA ****** ****** ****** 832.8 836.0 829.8 832.0 832.5 837.4 838.1 839.0 839.0 ****** DAY ** ** ** 18 4 27 19 1 17 6 27 3 MEAN QNH PRESSURE IN HPA ****** ****** ****** 1015.8 1016.8 1011.6 1010.6 1013.2 1017.1 1019.0 1021.1 1018.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** 1021.0 1021.6 1017.4 1013.9 1020.2 1022.2 1024.3 1026.7 1022.1 ****** DAY ** ** ** 20 28 7 5 31 1 29 3 23 MIN. QNH PRESSURE IN HPA ****** ****** ****** 1007.8 1011.6 1004.3 1006.9 1007.5 1013.2 1014.0 1015.1 1015.1 ****** DAY ** ** ** 18 4 27 19 1 17 6 27 3 MEAN QFF PRESSURE IN HPA ****** ****** ****** 1007.3 1005.5 995.6 994.0 998.2 1004.8 1009.2 1014.6 1014.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** 1016.0 1011.3 1002.8 998.6 1009.9 1011.8 1016.1 1020.6 1020.5 ****** DAY ** ** ** 8 28 7 15 31 1 29 3 23 MIN. QFF PRESSURE IN HPA ****** ****** ****** 996.4 1000.0 986.5 989.7 992.2 999.6 1002.9 1008.7 1008.6 ****** DAY ** ** ** 18 20 26 9 1 17 6 22 3 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.7 9.6 11.2 19.0 23.8 28.8 29.0 27.7 24.0 17.2 13.1 9.2 18.1 MINIMUN AIR TEMPERATURE (C) -0.4 3.2 5.2 11.7 16.3 20.2 20.9 19.7 15.5 10.0 6.0 1.3 10.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 14 14 12 0 0 0 0 41 DAYS WITH MINIMUM TEMP. <=-4 6 0 1 0 0 0 0 0 0 0 0 1 8 DAYS WITH FREEZING MIN.<= 0 19 10 5 0 0 0 0 0 0 0 4 12 50 TEMPERATURE RECORDS LOWEST(C) -8.0 -3.0 -5.3 6.4 11.0 17.2 17.5 16.0 11.6 3.2 -2.0 -4.0 -8.0 DAY 16 8 16 1 1 25 24 1 25 10 30 7 MAXIMUM AIR TEMPERATURE (C) 10.3 14.8 17.8 25.2 31.0 35.9 36.2 35.2 31.9 24.7 21.1 18.1 25.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 20 30 31 31 26 4 0 0 142 DAYS WITH MAXIMUM TEMP. <= 0 1 0 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS HIGHEST(C) 20.0 20.0 24.0 29.8 36.6 40.0 39.6 38.4 34.6 32.0 27.0 24.8 40.0 DAY 28 20 8 22 27 20 14 12 14 1 3 19 DIF. BETWEEN (MAX.-MIN.) (C) 10.7 11.6 12.6 13.5 14.7 15.7 15.3 15.5 16.4 14.7 15.1 16.8 14.4 MEAN DAILY TEMP. (MDT) (C) 5.0 9.0 11.5 18.4 23.6 28.1 28.6 27.4 23.7 17.3 13.6 9.7 18.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.7 90.1 211.6 234.5 199.8 80.3 7.8 0.0 0.0 825.9 HEATING DEG. DAYS(BASE 18 0C) 388.4 251.6 202.1 15.8 0.0 0.0 0.0 0.0 0.0 44.7 141.9 256.3 1300.7 DEWPOINT (MEAN C) -4.2 -1.7 -3.7 0.4 5.0 1.0 2.4 0.8 -4.6 -4.1 -3.9 -9.0 -1.8 MIXING RATIO (G/KG) 3.57 4.21 3.77 4.93 7.22 5.21 5.72 5.09 3.43 3.56 3.68 2.46 4.40 VAPOUR PRESSURE (HPA) 4.80 5.64 5.06 6.60 9.59 6.93 7.60 6.79 4.60 4.81 4.96 3.32 5.89 SATURATION DEF. (HPA) 4.30 6.89 8.99 16.09 21.25 34.34 34.15 31.99 26.87 15.94 11.30 9.22 18.44 RELATIVE HUMIDITY (MEAN %) 59 48 38 32 32 18 19 18 16 24 33 30 31 RELATIVE HUMIDITY (MAX. %) 75 67 53 49 46 27 28 27 23 34 47 44 43 RELATIVE HUMIDITY (MIN. %) 42 31 26 19 18 11 13 13 10 17 21 18 20 RELATIVE HUMIDITY (MEAN% 03UTC) 68 62 44 42 44 26 27 26 22 30 45 41 40 RELATIVE HUMIDITY (MEAN% 09UTC) 50 40 32 26 30 16 17 15 12 21 25 22 26 RELATIVE HUMIDITY (MEAN% 15UTC) 56 41 34 24 26 13 15 14 12 21 28 26 26 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 33.4 32.1 10.0 17.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 93.0 DAYS WITH PRECIPITATION >=10 1 2 0 1 0 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 2 2 1 2 0 0 0 0 0 0 0 0 7 DAYS WITH PRECIPITATION >= 1 9 2 3 2 0 0 0 0 0 0 0 0 16 DAYS WITH PRECIPITATION 9 3 3 2 0 0 0 0 0 0 0 1 18 GREATEST DAILY PRECIPITATION 13.0 19.0 7.0 10.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 19.0 DAY 5 4 27 28 ** ** ** ** ** ** ** 25 DAY WITH THUNDER STORM 0 0 1 0 0 0 0 0 0 0 0 0 1 DAYS WITH SNOW OR SLEET 4 0 2 0 0 0 0 0 0 0 0 0 6 DAYS WITH DUST 1 1 2 1 0 0 0 0 0 0 1 0 6 WIND DIRECTION (PREVAILING) 225 270 225 225 315 315 315 360 315 315 225 225 315 PREVAILING WIND SPEED(KNOTS) 15.6 14.1 13.6 15.2 11.2 11.1 10.8 10.5 10.5 10.4 12.3 10.7 10.8 PREVAILING WIND PERCENT 10.1 19.6 18.5 17.5 27.8 26.3 29.0 33.9 39.6 36.7 32.5 25.4 19.9 CALMS PERCENT OF WIND 73.4 45.5 49.6 52.9 11.7 15.4 20.6 10.1 15.8 11.7 17.1 24.2 28.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 258 239 253 253 280 305 326 337 310 296 251 252 283 VECTOR WIND MAGNITUDE(KNOTS) 2.3 5.2 4.2 4.3 6.3 5.9 5.5 6.1 5.4 5.9 7.4 3.7 4.4 WIND STEADINESES (MEAN %) 69.7 74.3 67.7 68.3 60.0 63.4 64.7 62.9 62.8 62.8 74.7 47.4 54.3 WIND SPEED (MEAN KNOTS) 3.3 7.0 6.2 6.3 10.5 9.3 8.5 9.7 8.6 9.4 9.9 7.8 8.1 FASTEST WIND DIRECTION 240 270 240 260 300 240 360 310 310 210 250 270 300 FASTEST WIND SPEED (KNOTS) 29 29 29 29 35 23 25 17 23 23 27 19 35 DAY 9 15 12 24 9 1 17 4 16 28 29 3 DAYS WITH SKY CLEAR (0-2)/8 14 16 18 16 19 29 27 25 29 24 16 21 254 DAYS WITH P.CLOUDY (3-6)/8 6 4 8 12 9 1 4 6 1 7 9 3 70 DAYS WITH CLOUDY (7-8)/8 11 8 5 2 3 0 0 0 0 0 5 7 41 DAYS WITH VISIBILITY =< 2 KM 3 0 0 0 0 0 0 0 0 0 1 0 4 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 841.7 841.1 840.7 839.9 839.1 836.0 834.6 837.2 839.2 844.6 843.0 843.8 840.1 MAX. QFE PRESSURE IN HPA 850.0 846.5 846.8 846.0 843.2 842.1 840.5 841.3 844.2 850.7 848.2 850.5 850.7 DAY-HOUR 6- 6 8- 6 31- 6 1- 0 10- 6 23- 9 28- 6 26- 6 16- 6 17- 6 21- 6 27- 6 MIN. QFE PRESSURE IN HPA 832.1 835.0 829.8 834.0 831.1 831.0 828.6 829.9 835.1 837.4 837.2 835.8 828.6 DAY-HOUR 8-12 15-15 12-12 13- 3 29-12 3-12 14-12 12-15 3-12 3-12 14-12 4-12 MEAN QNH PRESSURE IN HPA 1018.2 1017.5 1017.1 1016.1 1015.1 1011.5 1010.0 1012.9 1015.3 1021.6 1019.7 1020.6 1016.3 MAX. QNH PRESSURE IN HPA 1027.9 1023.8 1024.2 1023.2 1020.0 1018.7 1016.8 1017.8 1021.1 1028.7 1025.8 1028.5 1028.7 DAY-HOUR 6- 6 8- 6 31- 6 1- 0 10- 6 23- 9 28- 6 26- 6 16- 6 17- 6 21- 6 27- 6 MIN. QNH PRESSURE IN HPA 1007.0 1010.4 1004.3 1009.2 1005.9 1005.7 1002.9 1004.5 1010.5 1013.2 1013.0 1011.3 1002.9 DAY-HOUR 8-12 15-15 12-12 13- 3 29-12 3-12 14-12 12-15 3-12 3-12 14-12 4-12 MEAN QFF PRESSURE IN HPA 1018.0 1013.9 1012.5 1006.5 1002.3 995.9 994.2 998.0 1002.7 1013.3 1013.9 1017.6 1007.4 MAX. QFF PRESSURE IN HPA 1028.5 1024.5 1020.4 1015.5 1010.7 1004.7 1002.3 1005.7 1010.5 1022.2 1024.2 1027.0 1028.5 DAY-HOUR 6- 6 8- 3 24- 9 1- 6 10- 6 23- 9 28- 0 26- 3 24- 3 9- 3 30-15 27- 6 MIN. QFF PRESSURE IN HPA 1002.6 1004.3 998.8 1000.0 988.5 989.1 984.6 987.6 996.7 1000.1 1002.9 1007.1 984.6 DAY-HOUR 9-12 15-15 12-12 26-12 29-12 21-18 14-12 12-18 3-18 3-12 14-12 5- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 842.0 841.3 840.8 840.4 839.5 836.3 835.1 837.7 839.4 844.7 843.4 844.1 840.4 MAX. QFE PRESSURE IN HPA 847.0 844.7 846.3 846.0 842.1 840.4 840.0 840.6 843.2 849.0 846.6 849.7 849.7 DAY 6 9 31 1 19 24 28 26 24 16 21 27 MIN. QFE PRESSURE IN HPA 834.9 836.3 834.0 835.0 836.0 833.9 830.7 832.7 836.9 839.8 839.4 837.8 830.7 DAY 9 5 10 13 17 13 14 13 14 3 16 5 MEAN QNH PRESSURE IN HPA 1018.5 1017.7 1017.1 1016.7 1015.6 1011.9 1010.5 1013.5 1015.5 1021.7 1020.2 1021.0 1016.7 MAX. QNH PRESSURE IN HPA 1024.4 1021.7 1023.6 1023.2 1018.7 1016.7 1016.2 1016.9 1020.0 1026.7 1023.9 1027.6 1027.6 DAY 6 9 31 1 19 24 28 26 24 16 21 27 MIN. QNH PRESSURE IN HPA 1010.3 1011.9 1009.2 1010.4 1011.6 1009.1 1005.4 1007.7 1012.6 1016.0 1015.5 1013.7 1005.4 DAY 9 5 10 13 17 13 14 13 14 3 16 5 MEAN QFF PRESSURE IN HPA 1018.2 1014.4 1012.4 1007.0 1003.1 996.6 994.9 998.6 1002.9 1013.2 1013.8 1017.5 1007.7 MAX. QFF PRESSURE IN HPA 1024.8 1022.3 1019.1 1014.8 1008.2 1003.7 1002.3 1003.9 1008.8 1020.0 1020.9 1025.1 1025.1 DAY 6 8 24 1 10 24 28 26 24 9 23 26 MIN. QFF PRESSURE IN HPA 1003.6 1008.4 1004.1 1001.7 996.6 991.4 987.2 990.8 998.8 1003.2 1006.8 1007.1 987.2 DAY 9 3 10 13 29 22 14 13 15 3 14 5 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 842.4 842.1 841.3 840.4 839.9 836.9 835.5 838.1 840.0 845.3 843.8 844.5 840.9 MAX. QFE PRESSURE IN HPA 848.6 845.8 846.6 845.9 842.5 840.8 840.4 841.0 843.6 849.9 847.4 850.0 850.0 DAY 6 8 31 1 10 24 28 26 24 17 21 27 MIN. QFE PRESSURE IN HPA 834.7 836.3 835.2 834.0 835.5 834.5 831.2 833.4 837.4 840.1 840.0 838.2 831.2 DAY 9 5 10 13 17 3 14 13 3 3 14 5 MEAN QNH PRESSURE IN HPA 1019.1 1018.7 1017.7 1016.7 1016.2 1012.7 1011.0 1014.1 1016.3 1022.4 1020.7 1021.5 1017.2 MAX. QNH PRESSURE IN HPA 1026.3 1023.0 1023.9 1023.1 1019.2 1017.2 1016.7 1017.4 1020.4 1027.8 1024.9 1027.9 1027.9 DAY 6 8 31 1 10 24 28 26 24 17 21 27 MIN. QNH PRESSURE IN HPA 1010.1 1011.9 1010.6 1009.2 1011.0 1009.8 1006.0 1008.5 1013.2 1016.4 1016.2 1014.1 1006.0 DAY 9 5 10 13 17 3 14 13 3 3 14 5 MEAN QFF PRESSURE IN HPA 1019.5 1015.6 1013.5 1007.6 1003.5 997.2 995.3 999.5 1004.4 1015.1 1016.1 1019.9 1008.9 MAX. QFF PRESSURE IN HPA 1027.2 1024.5 1019.0 1013.7 1010.1 1004.3 1001.4 1005.7 1010.5 1022.2 1023.1 1027.0 1027.2 DAY 6 8 17 1 10 24 28 26 24 9 22 26 MIN. QFF PRESSURE IN HPA 1003.3 1007.9 1004.6 1000.3 996.6 993.2 987.9 991.5 1000.6 1005.3 1008.7 1009.2 987.9 DAY 9 15 10 13 29 22 14 13 4 3 14 5 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 843.1 842.2 841.4 841.0 840.7 837.6 836.0 838.7 840.9 846.3 844.5 845.1 841.5 MAX. QFE PRESSURE IN HPA 850.0 846.5 846.8 846.0 843.2 841.5 840.5 841.3 844.2 850.7 848.2 850.5 850.7 DAY 6 8 31 17 10 23 28 26 16 17 21 27 MIN. QFE PRESSURE IN HPA 835.5 837.0 835.2 835.4 836.2 834.0 831.7 833.8 838.2 841.2 839.4 840.0 831.7 DAY 9 5 12 13 29 3 14 12 29 3 14 5 MEAN QNH PRESSURE IN HPA 1019.8 1018.9 1017.9 1017.4 1017.0 1013.4 1011.6 1014.7 1017.3 1023.6 1021.5 1022.2 1017.9 MAX. QNH PRESSURE IN HPA 1027.9 1023.8 1024.2 1023.2 1020.0 1018.0 1016.8 1017.8 1021.1 1028.7 1025.8 1028.5 1028.7 DAY 6 8 31 17 10 23 28 26 16 17 21 27 MIN. QNH PRESSURE IN HPA 1011.0 1012.7 1010.6 1010.9 1011.8 1009.2 1006.6 1009.0 1014.1 1017.6 1015.5 1016.2 1006.6 DAY 9 5 12 13 29 3 14 12 29 3 14 5 MEAN QFF PRESSURE IN HPA 1019.7 1015.0 1013.3 1007.6 1004.2 997.7 995.6 999.8 1004.4 1015.2 1015.7 1019.2 1009.0 MAX. QFF PRESSURE IN HPA 1028.5 1023.8 1020.2 1015.5 1010.7 1004.1 1002.2 1004.4 1010.4 1022.1 1023.9 1027.0 1028.5 DAY 6 8 17 1 10 23 28 26 24 9 30 27 MIN. QFF PRESSURE IN HPA 1003.7 1008.8 1004.3 1001.7 996.2 993.7 988.5 991.9 1000.0 1005.3 1006.8 1010.9 988.5 DAY 9 16 22 13 29 3 14 12 4 3 14 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 841.7 841.4 840.9 840.3 839.6 836.7 835.0 837.6 839.6 844.9 842.9 843.5 840.3 MAX. QFE PRESSURE IN HPA 847.5 845.0 846.6 845.7 842.0 842.1 839.1 840.1 842.2 849.2 846.0 849.0 849.2 DAY 6 8 31 1 9 23 27 30 16 17 30 26 MIN. QFE PRESSURE IN HPA 835.2 837.0 833.4 835.1 833.9 832.8 830.5 832.1 837.1 839.3 837.6 838.1 830.5 DAY 9 15 12 13 29 3 14 12 3 3 14 4 MEAN QNH PRESSURE IN HPA 1018.3 1017.9 1017.3 1016.6 1015.7 1012.4 1010.4 1013.4 1015.8 1021.9 1019.6 1020.3 1016.6 MAX. QNH PRESSURE IN HPA 1025.0 1022.1 1023.9 1022.9 1018.6 1018.7 1015.2 1016.4 1018.8 1027.0 1023.2 1026.7 1027.0 DAY 6 8 31 1 9 23 27 30 16 17 30 26 MIN. QNH PRESSURE IN HPA 1010.6 1012.7 1008.5 1010.5 1009.1 1007.8 1005.2 1007.0 1012.9 1015.4 1013.4 1014.0 1005.2 DAY 9 15 12 13 29 3 14 12 3 3 14 4 MEAN QFF PRESSURE IN HPA 1017.8 1014.1 1012.5 1006.5 1002.5 996.5 994.4 998.1 1002.7 1012.9 1013.1 1016.4 1007.3 MAX. QFF PRESSURE IN HPA 1025.9 1022.7 1020.4 1015.0 1009.2 1004.7 1000.7 1002.7 1007.2 1020.0 1021.5 1024.4 1025.9 DAY 6 8 24 1 9 23 29 26 18 9 30 26 MIN. QFF PRESSURE IN HPA 1003.3 1008.3 1002.8 1001.5 992.8 992.4 986.7 989.9 998.6 1002.7 1004.6 1007.9 986.7 DAY 9 21 12 13 29 3 14 12 14 3 14 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 840.4 840.2 840.1 838.8 837.9 835.0 833.7 836.2 837.8 843.4 841.5 842.4 839.0 MAX. QFE PRESSURE IN HPA 847.2 843.9 846.3 845.4 840.5 841.0 838.5 839.0 840.6 847.6 845.2 848.0 848.0 DAY 6 7 30 1 9 23 27 25 30 16 25 26 MIN. QFE PRESSURE IN HPA 832.1 836.0 829.8 834.0 831.1 831.0 828.6 830.3 835.1 837.4 837.2 835.8 828.6 DAY 8 15 12 13 29 3 14 12 3 3 14 4 MEAN QNH PRESSURE IN HPA 1016.7 1016.5 1016.4 1014.8 1013.8 1010.4 1008.9 1011.8 1013.7 1020.2 1018.0 1019.0 1015.0 MAX. QNH PRESSURE IN HPA 1024.6 1020.8 1023.6 1022.5 1016.8 1017.4 1014.5 1015.1 1016.9 1025.1 1022.3 1025.6 1025.6 DAY 6 7 30 1 9 23 27 25 30 16 25 26 MIN. QNH PRESSURE IN HPA 1007.0 1011.6 1004.3 1009.2 1005.9 1005.7 1002.9 1004.9 1010.5 1013.2 1013.0 1011.3 1002.9 DAY 8 15 12 13 29 3 14 12 3 3 14 4 MEAN QFF PRESSURE IN HPA 1016.3 1013.1 1011.5 1005.1 1000.7 994.9 993.2 996.7 1001.0 1011.5 1011.5 1015.3 1005.9 MAX. QFF PRESSURE IN HPA 1026.3 1020.1 1019.9 1013.4 1006.8 1004.0 1000.0 1001.3 1005.4 1017.6 1021.1 1022.9 1026.3 DAY 6 7 23 1 9 23 27 6 20 16 30 26 MIN. QFF PRESSURE IN HPA 1002.6 1007.3 998.8 1000.0 988.5 989.7 984.6 988.0 997.1 1000.1 1002.9 1007.4 984.6 DAY 9 15 12 26 29 13 14 12 3 3 14 4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 841.0 840.1 840.2 839.0 837.8 834.4 833.2 835.7 837.9 843.6 842.2 843.1 839.0 MAX. QFE PRESSURE IN HPA 847.6 844.3 846.0 844.9 840.1 840.2 838.0 838.8 841.1 847.9 845.6 848.4 848.4 DAY 6 7 30 1 9 23 27 6 30 17 21 26 MIN. QFE PRESSURE IN HPA 834.7 835.0 830.2 834.0 833.4 831.0 828.7 829.9 835.1 837.7 838.6 836.2 828.7 DAY 8 15 12 13 29 3 13 12 3 3 14 4 MEAN QNH PRESSURE IN HPA 1017.4 1016.4 1016.5 1015.0 1013.7 1009.7 1008.3 1011.2 1013.8 1020.5 1018.8 1019.9 1015.1 MAX. QNH PRESSURE IN HPA 1025.1 1021.3 1023.2 1022.0 1016.4 1016.5 1013.9 1014.8 1017.5 1025.5 1022.8 1026.0 1026.0 DAY 6 7 30 1 9 23 27 6 30 17 21 26 MIN. QNH PRESSURE IN HPA 1010.1 1010.4 1004.8 1009.2 1008.5 1005.7 1003.1 1004.5 1010.5 1013.6 1014.6 1011.8 1003.1 DAY 8 15 12 13 29 3 13 12 3 3 14 4 MEAN QFF PRESSURE IN HPA 1017.7 1013.2 1012.1 1005.9 1000.9 994.2 992.6 996.5 1001.9 1013.1 1014.2 1018.2 1006.7 MAX. QFF PRESSURE IN HPA 1026.6 1021.4 1019.7 1012.7 1007.0 1003.8 999.6 1002.6 1007.1 1018.5 1024.2 1024.6 1026.6 DAY 6 7 23 1 9 23 27 25 22 9 30 26 MIN. QFF PRESSURE IN HPA 1004.9 1004.3 999.9 1000.5 993.5 989.6 985.8 988.3 997.4 1002.2 1007.0 1010.0 985.8 DAY 8 15 12 13 28 21 14 12 3 3 14 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 841.4 840.4 840.5 839.6 838.4 835.3 834.0 836.3 838.8 844.0 842.7 843.6 839.6 MAX. QFE PRESSURE IN HPA 847.0 845.2 846.0 844.9 841.2 840.2 838.6 840.0 841.6 848.0 846.0 849.0 849.0 DAY 6 7 30 1 10 23 27 6 30 16 21 26 MIN. QFE PRESSURE IN HPA 834.7 835.0 832.8 835.0 834.8 832.3 830.5 830.2 835.8 838.5 838.9 837.4 830.2 DAY 8 15 9 13 16 3 13 12 3 3 6 4 MEAN QNH PRESSURE IN HPA 1017.8 1016.7 1016.8 1015.8 1014.4 1010.7 1009.3 1012.0 1014.9 1020.9 1019.4 1020.4 1015.8 MAX. QNH PRESSURE IN HPA 1024.4 1022.3 1023.2 1022.0 1017.6 1016.5 1014.6 1016.2 1018.1 1025.6 1023.2 1026.7 1026.7 DAY 6 7 30 1 10 23 27 6 30 16 21 26 MIN. QNH PRESSURE IN HPA 1010.1 1010.4 1007.8 1010.4 1010.2 1007.3 1005.2 1004.8 1011.3 1014.5 1015.0 1013.2 1004.8 DAY 8 15 9 13 16 3 13 12 3 3 6 4 MEAN QFF PRESSURE IN HPA 1017.7 1012.9 1012.2 1006.0 1001.9 995.1 993.5 997.2 1002.0 1012.6 1013.7 1017.5 1006.8 MAX. QFF PRESSURE IN HPA 1025.7 1022.5 1019.5 1013.6 1007.2 1002.9 1000.8 1003.8 1006.8 1018.3 1023.3 1025.3 1025.7 DAY 6 7 23 1 10 23 27 6 23 8 30 26 MIN. QFF PRESSURE IN HPA 1004.4 1004.6 1001.1 1001.2 996.2 989.1 987.0 987.6 996.7 1002.8 1007.3 1008.8 987.0 DAY 8 15 9 13 28 21 14 12 3 3 6 4 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 841.5 840.8 840.7 839.9 838.9 835.7 834.8 837.1 839.3 844.4 843.1 843.9 840.0 MAX. QFE PRESSURE IN HPA 846.4 845.2 846.0 843.9 841.2 840.3 839.4 839.8 842.6 848.4 846.3 849.4 849.4 DAY 5 7 30 1 10 23 27 25 23 16 21 26 MIN. QFE PRESSURE IN HPA 834.7 836.0 833.2 835.0 834.8 831.3 830.7 832.3 836.4 839.2 839.2 837.8 830.7 DAY 8 15 9 13 16 3 13 12 3 3 6 4 MEAN QNH PRESSURE IN HPA 1018.0 1017.2 1017.1 1016.2 1014.9 1011.2 1010.1 1012.9 1015.5 1021.4 1019.8 1020.8 1016.3 MAX. QNH PRESSURE IN HPA 1023.7 1022.3 1023.2 1020.8 1017.6 1016.6 1015.5 1016.0 1019.3 1026.0 1023.6 1027.2 1027.2 DAY 5 7 30 1 10 23 27 25 23 16 21 26 MIN. QNH PRESSURE IN HPA 1010.1 1011.6 1008.3 1010.4 1010.2 1006.1 1005.4 1007.3 1012.0 1015.3 1015.3 1013.7 1005.4 DAY 8 15 9 13 16 3 13 12 3 3 6 4 MEAN QFF PRESSURE IN HPA 1017.5 1013.4 1012.4 1006.1 1002.0 995.5 994.3 997.7 1002.5 1012.5 1013.6 1017.0 1007.0 MAX. QFF PRESSURE IN HPA 1024.5 1022.5 1019.1 1011.2 1007.6 1003.2 1001.2 1003.1 1008.4 1019.7 1021.9 1024.6 1024.6 DAY 6 7 23 1 9 23 27 25 23 8 30 26 MIN. QFF PRESSURE IN HPA 1004.1 1006.5 1001.9 1000.6 996.3 990.3 987.0 990.1 997.9 1002.7 1005.8 1007.3 987.0 DAY 8 15 9 13 28 21 13 12 14 3 6 4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.6 8.7 13.2 18.8 23.2 29.5 31.3 30.1 23.6 18.9 17.2 8.9 19.2 MINIMUN AIR TEMPERATURE (C) 0.7 -0.2 6.9 11.4 16.3 20.9 23.1 21.8 14.5 10.6 8.4 0.8 11.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 16 29 18 0 0 0 0 63 DAYS WITH MINIMUM TEMP. <=-4 6 3 0 0 0 0 0 0 0 0 0 7 16 DAYS WITH FREEZING MIN.<= 0 17 19 0 0 0 0 0 0 0 0 0 16 52 TEMPERATURE RECORDS LOWEST(C) -6.0 -7.0 1.0 2.8 10.6 16.0 19.4 18.0 8.0 4.8 2.2 -8.8 -8.8 DAY 11 21 3 6 8 12 15 20 22 14 27 8 MAXIMUM AIR TEMPERATURE (C) 14.2 16.7 19.8 25.3 30.1 36.6 38.7 37.5 28.8 23.6 22.4 14.7 25.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 6 20 30 31 31 8 0 0 0 126 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.4 23.6 26.0 32.6 34.6 40.6 40.4 40.6 36.4 28.4 25.0 22.6 40.6 DAY 5 1 31 26 25 26 20 6 1 2 4 3 DIF. BETWEEN (MAX.-MIN.) (C) 13.5 16.9 12.9 13.9 13.8 15.7 15.6 15.7 14.3 13.0 14.0 13.9 14.4 MEAN DAILY TEMP. (MDT) (C) 7.4 8.2 13.3 18.4 23.2 28.8 30.9 29.7 21.6 17.1 15.4 7.8 18.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 20.1 82.1 233.0 306.9 268.2 54.4 1.2 0.0 0.0 965.9 HEATING DEG. DAYS(BASE 18 0C) 328.1 273.0 145.5 40.2 1.6 0.0 0.0 0.0 5.8 43.9 79.7 317.6 1235.4 DEWPOINT (MEAN C) -8.2 -10.6 -2.5 0.9 3.4 4.0 5.5 5.2 0.8 4.8 -1.9 -4.9 -0.3 MIXING RATIO (G/KG) 2.63 2.26 4.11 5.23 6.11 6.35 7.14 6.86 5.51 6.68 4.19 3.44 5.04 VAPOUR PRESSURE (HPA) 3.54 3.04 5.50 6.99 8.15 8.41 9.43 9.09 7.35 8.95 5.63 4.62 6.73 SATURATION DEF. (HPA) 7.70 9.21 10.38 15.95 21.46 34.78 37.85 35.46 23.23 13.73 14.76 7.93 19.37 RELATIVE HUMIDITY (MEAN %) 35 30 39 33 31 21 21 22 25 42 30 42 31 RELATIVE HUMIDITY (MAX. %) 53 48 58 49 45 28 31 29 38 59 44 61 45 RELATIVE HUMIDITY (MIN. %) 21 13 25 21 20 14 14 16 18 31 20 28 20 RELATIVE HUMIDITY (MEAN% 03UTC) 48 44 51 46 40 26 30 29 37 58 44 58 43 RELATIVE HUMIDITY (MEAN% 09UTC) 28 21 31 26 26 18 18 18 21 36 23 37 25 RELATIVE HUMIDITY (MEAN% 15UTC) 29 20 33 26 24 17 16 18 23 39 29 41 26 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 6.0 0.7 16.5 0.0 29.0 0.0 0.0 0.0 2.0 7.8 0.2 8.8 71.0 DAYS WITH PRECIPITATION >=10 0 0 0 0 1 0 0 0 0 0 0 0 1 DAYS WITH PRECIPITATION >= 5 1 0 1 0 1 0 0 0 0 0 0 1 4 DAYS WITH PRECIPITATION >= 1 1 0 5 0 4 0 0 0 1 2 0 3 16 DAYS WITH PRECIPITATION 2 1 5 0 4 0 0 0 1 5 1 4 23 GREATEST DAILY PRECIPITATION 6.0 0.7 7.5 0.0 21.0 0.0 0.0 0.0 2.0 4.0 0.2 6.0 21.0 DAY 25 19 1 ** 6 ** ** ** 7 8 18 4 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 2 0 0 2 DAYS WITH SNOW OR SLEET 0 1 0 0 0 0 0 0 0 0 0 1 2 DAYS WITH DUST 0 5 2 2 2 0 1 0 0 0 1 0 13 WIND DIRECTION (PREVAILING) 225 270 225 315 270 315 315 360 315 315 225 225 315 PREVAILING WIND SPEED(KNOTS) 12.9 15.3 14.4 12.4 13.1 11.5 12.2 11.2 11.0 10.8 13.0 13.5 11.4 PREVAILING WIND PERCENT 20.4 24.7 35.6 17.2 42.3 24.7 22.6 21.4 46.8 29.0 30.0 28.4 19.7 CALMS PERCENT OF WIND 38.0 19.1 6.1 26.1 6.5 38.9 34.3 18.5 17.9 20.6 19.3 7.7 21.7 NO. OF WIND OBSERVATION 245 215 247 238 248 239 248 248 156 155 150 155 2544 VECTOR WIND DIRECTION (MEAN) 257 272 238 283 277 303 324 301 319 303 236 238 277 VECTOR WIND MAGNITUDE(KNOTS) 4.6 7.2 7.6 4.4 8.7 3.7 4.2 4.4 7.0 4.0 5.0 5.8 4.8 WIND STEADINESES (MEAN %) 64.8 63.7 63.3 47.3 72.5 50.7 56.0 50.0 79.5 47.1 53.8 53.7 51.1 WIND SPEED (MEAN KNOTS) 7.1 11.3 12.0 9.3 12.0 7.3 7.5 8.8 8.8 8.5 9.3 10.8 9.4 FASTEST WIND DIRECTION 220 240 210 250 240 70 310 340 60 180 240 270 240 FASTEST WIND SPEED (KNOTS) 33 29 31 27 39 35 19 17 33 23 27 27 39 DAY 2 1 12 24 1 14 1 8 4 21 26 2 DAYS WITH SKY CLEAR (0-2)/8 17 21 11 14 14 27 28 28 20 16 13 19 228 DAYS WITH P.CLOUDY (3-6)/8 10 4 10 12 12 3 3 3 9 13 13 10 102 DAYS WITH CLOUDY (7-8)/8 4 3 10 4 5 0 0 0 1 2 4 2 35 DAYS WITH VISIBILITY =< 2 KM 0 1 0 1 0 0 1 0 0 0 0 0 3 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 841.5 838.5 839.7 840.1 838.9 833.7 832.1 834.2 841.1 844.0 843.0 842.9 839.1 MAX. QFE PRESSURE IN HPA 849.0 845.0 844.6 847.8 845.0 839.6 836.1 839.0 849.0 850.8 849.0 848.7 850.8 DAY-HOUR 10- 6 20- 6 19- 6 5- 6 15- 6 9- 6 3- 6 16- 6 23- 6 10- 6 2- 6 8- 6 MIN. QFE PRESSURE IN HPA 833.7 831.4 833.1 832.6 833.6 827.4 828.5 829.0 833.6 838.9 836.5 832.4 827.4 DAY-HOUR 25-12 12-12 12-12 3-12 1-15 29-12 9-15 2-12 1-12 3-12 26-12 4- 3 MEAN QNH PRESSURE IN HPA 1018.0 1014.5 1015.9 1016.3 1014.9 1008.9 1007.0 1009.4 1017.6 1020.9 1019.7 1019.6 1015.2 MAX. QNH PRESSURE IN HPA 1026.7 1022.1 1021.6 1025.3 1022.1 1015.8 1011.7 1015.1 1026.7 1028.8 1026.7 1026.4 1028.8 DAY-HOUR 10- 6 20- 6 19- 6 5- 6 15- 6 9- 6 3- 6 16- 6 23- 6 10- 6 2- 6 8- 6 MIN. QNH PRESSURE IN HPA 1008.9 1006.2 1008.2 1007.6 1008.8 1001.5 1002.8 1003.4 1008.8 1015.0 1012.2 1007.4 1001.5 DAY-HOUR 25-12 12-12 12-12 3-12 1-15 29-12 9-15 2-12 1-12 3-12 26-12 4- 3 MEAN QFF PRESSURE IN HPA 1016.0 1012.1 1010.0 1006.8 1002.6 992.8 989.7 992.9 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1029.0 1025.9 1019.2 1021.9 1010.0 1002.5 996.7 1000.0 ****** ****** ****** ****** ****** DAY-HOUR 10- 6 20- 6 18- 3 6- 3 7- 6 9- 6 14- 3 24- 3 **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA 1003.7 1001.1 999.7 997.3 995.5 984.0 983.9 986.1 ****** ****** ****** ****** ****** DAY-HOUR 5-12 12-15 12-12 26-12 25-12 29-12 8-18 2-18 **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 841.4 839.2 839.8 840.3 839.1 834.1 832.3 834.3 ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 847.6 843.8 843.4 846.1 843.3 838.1 835.8 836.6 ****** ****** ****** ****** ****** DAY 19 21 18 6 15 10 14 16 ** ** ** ** MIN. QFE PRESSURE IN HPA 835.6 835.4 835.4 834.9 835.6 829.6 830.2 830.0 ****** ****** ****** ****** ****** DAY 17 23 15 3 2 29 8 3 ** ** ** ** MEAN QNH PRESSURE IN HPA 1017.9 1015.4 1016.0 1016.6 1015.2 1009.3 1007.2 1009.5 ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1025.1 1020.7 1020.2 1023.4 1020.1 1014.0 1011.3 1012.3 ****** ****** ****** ****** ****** DAY 19 21 18 6 15 10 14 16 ** ** ** ** MIN. QNH PRESSURE IN HPA 1011.1 1010.9 1010.9 1010.3 1011.1 1004.1 1004.8 1004.6 ****** ****** ****** ****** ****** DAY 17 23 15 3 2 29 8 3 ** ** ** ** MEAN QFF PRESSURE IN HPA 1015.4 1012.8 1009.9 1007.0 1002.8 993.5 990.1 993.2 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1026.4 1024.1 1018.0 1020.2 1008.4 1000.2 996.0 997.5 ****** ****** ****** ****** ****** DAY 10 21 18 6 8 10 14 24 ** ** ** ** MIN. QFF PRESSURE IN HPA 1006.9 1005.4 1003.8 1000.2 997.5 986.7 986.6 986.2 ****** ****** ****** ****** ****** DAY 17 9 15 27 25 29 9 3 ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 842.2 839.3 840.5 841.1 839.8 834.7 833.0 835.1 841.9 844.6 843.7 843.4 839.9 MAX. QFE PRESSURE IN HPA 848.0 843.8 844.2 846.4 844.5 839.0 836.0 838.4 848.0 849.1 847.8 847.9 849.1 DAY 19 21 19 6 15 9 14 16 23 10 2 8 MIN. QFE PRESSURE IN HPA 836.0 833.0 835.2 835.2 836.6 830.1 830.4 830.6 835.5 840.7 837.1 832.4 830.1 DAY 17 12 12 3 2 29 21 1 1 3 26 4 MEAN QNH PRESSURE IN HPA 1018.8 1015.4 1016.8 1017.5 1016.1 1010.1 1008.0 1010.5 1018.5 1021.6 1020.5 1020.2 1016.2 MAX. QNH PRESSURE IN HPA 1025.6 1020.7 1021.1 1023.7 1021.5 1015.1 1011.6 1014.4 1025.6 1026.9 1025.3 1025.5 1026.9 DAY 19 21 19 6 15 9 14 16 23 10 2 8 MIN. QNH PRESSURE IN HPA 1011.6 1008.1 1010.6 1010.6 1012.3 1004.7 1005.0 1005.3 1011.0 1017.1 1012.9 1007.4 1004.7 DAY 17 12 12 3 2 29 21 1 1 3 26 4 MEAN QFF PRESSURE IN HPA 1017.7 1013.8 1011.7 1008.7 1004.0 994.1 991.0 994.6 1007.7 1014.0 1014.6 1019.8 1007.6 MAX. QFF PRESSURE IN HPA 1028.4 1024.9 1019.2 1021.9 1009.1 1000.9 996.7 1000.0 1018.8 1022.5 1019.8 1032.7 1032.7 DAY 10 20 18 6 15 9 14 24 23 10 20 8 MIN. QFF PRESSURE IN HPA 1008.7 1001.5 1004.2 1001.3 999.4 987.2 986.8 987.2 995.9 1005.9 1005.5 999.1 986.8 DAY 16 12 12 27 25 29 9 3 1 3 26 4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 843.1 840.0 841.3 841.8 840.5 835.1 833.5 835.8 842.9 845.6 844.5 844.3 840.7 MAX. QFE PRESSURE IN HPA 849.0 845.0 844.6 847.8 845.0 839.6 836.1 839.0 849.0 850.8 849.0 848.7 850.8 DAY 10 20 19 5 15 9 3 16 23 10 2 8 MIN. QFE PRESSURE IN HPA 837.3 833.4 834.7 835.5 837.2 830.1 830.9 831.6 836.6 842.0 837.8 833.3 830.1 DAY 25 12 12 3 11 29 21 1 1 3 26 4 MEAN QNH PRESSURE IN HPA 1019.9 1016.2 1017.7 1018.4 1016.9 1010.5 1008.7 1011.4 1019.6 1022.8 1021.5 1021.3 1017.1 MAX. QNH PRESSURE IN HPA 1026.7 1022.1 1021.6 1025.3 1022.1 1015.8 1011.7 1015.1 1026.7 1028.8 1026.7 1026.4 1028.8 DAY 10 20 19 5 15 9 3 16 23 10 2 8 MIN. QNH PRESSURE IN HPA 1013.1 1008.5 1010.1 1011.0 1013.0 1004.7 1005.6 1006.4 1012.3 1018.6 1013.7 1008.4 1004.7 DAY 25 12 12 3 11 29 21 1 1 3 26 4 MEAN QFF PRESSURE IN HPA 1018.1 1013.5 1011.7 1008.8 1004.5 994.4 991.2 994.6 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1029.0 1025.9 1018.3 1021.6 1010.0 1002.5 996.7 999.7 ****** ****** ****** ****** ****** DAY 10 20 17 5 7 9 14 24 ** ** ** ** MIN. QFF PRESSURE IN HPA 1010.2 1001.8 1003.0 1002.0 999.2 986.0 986.7 987.4 ****** ****** ****** ****** ****** DAY 23 12 12 3 1 29 9 3 ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 841.4 838.6 840.2 840.4 839.4 834.1 832.4 834.6 841.6 844.0 842.7 842.9 839.3 MAX. QFE PRESSURE IN HPA 847.5 844.1 843.2 846.8 843.8 838.5 834.7 837.3 847.5 849.3 847.3 846.5 849.3 DAY 10 20 18 5 15 9 4 16 23 10 2 8 MIN. QFE PRESSURE IN HPA 835.2 833.3 834.3 834.5 836.5 828.6 830.0 830.0 835.0 840.6 837.0 834.3 828.6 DAY 25 12 12 3 1 29 9 2 1 16 26 4 MEAN QNH PRESSURE IN HPA 1017.9 1014.6 1016.5 1016.7 1015.5 1009.3 1007.3 1010.0 1018.1 1020.9 1019.4 1019.6 1015.5 MAX. QNH PRESSURE IN HPA 1025.0 1021.0 1020.0 1024.2 1020.7 1014.5 1010.1 1013.1 1025.0 1027.1 1024.8 1023.8 1027.1 DAY 10 20 18 5 15 9 4 16 23 10 2 8 MIN. QNH PRESSURE IN HPA 1010.6 1008.4 1009.6 1009.8 1012.2 1002.9 1004.6 1004.6 1010.4 1016.9 1012.7 1009.6 1002.9 DAY 25 12 12 3 1 29 9 2 1 16 26 4 MEAN QFF PRESSURE IN HPA 1015.3 1011.4 1010.2 1006.6 1002.9 993.0 989.8 993.0 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1026.4 1024.4 1016.8 1020.1 1008.5 1000.2 994.8 998.1 ****** ****** ****** ****** ****** DAY 10 20 17 5 8 9 14 24 ** ** ** ** MIN. QFF PRESSURE IN HPA 1006.3 1003.4 1002.6 1000.3 997.2 985.0 985.7 986.7 ****** ****** ****** ****** ****** DAY 5 12 12 26 25 29 9 2 ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 840.0 836.9 838.6 838.6 837.8 832.7 830.9 833.1 840.0 842.7 841.6 841.6 837.9 MAX. QFE PRESSURE IN HPA 846.0 843.0 841.8 845.4 842.3 836.5 833.4 836.0 846.7 847.7 845.7 845.1 847.7 DAY 10 20 18 5 15 8 2 23 23 10 1 8 MIN. QFE PRESSURE IN HPA 833.7 831.4 833.1 832.6 834.7 827.4 828.6 829.0 833.6 838.9 836.5 833.7 827.4 DAY 25 12 12 3 1 29 9 2 1 3 26 4 MEAN QNH PRESSURE IN HPA 1016.3 1012.6 1014.6 1014.6 1013.7 1007.7 1005.6 1008.2 1016.2 1019.4 1018.1 1018.1 1013.8 MAX. QNH PRESSURE IN HPA 1023.2 1019.7 1018.3 1022.5 1018.9 1012.2 1008.5 1011.6 1024.1 1025.2 1022.9 1022.2 1025.2 DAY 10 20 18 5 15 8 2 23 23 10 1 8 MIN. QNH PRESSURE IN HPA 1008.9 1006.2 1008.2 1007.6 1010.1 1001.5 1002.9 1003.4 1008.8 1015.0 1012.2 1008.9 1001.5 DAY 25 12 12 3 1 29 9 2 1 3 26 4 MEAN QFF PRESSURE IN HPA 1013.7 1010.3 1008.3 1004.9 1001.2 991.5 988.3 991.6 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1024.7 1022.6 1015.2 1018.5 1007.2 998.1 992.2 997.1 ****** ****** ****** ****** ****** DAY 10 20 17 5 8 9 14 24 ** ** ** ** MIN. QFF PRESSURE IN HPA 1003.7 1001.2 999.7 997.3 995.5 984.0 984.8 986.3 ****** ****** ****** ****** ****** DAY 5 9 12 26 25 29 9 3 ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 840.8 837.6 838.9 838.8 837.8 832.5 830.8 833.0 840.1 843.3 842.4 842.3 838.2 MAX. QFE PRESSURE IN HPA 846.6 843.3 842.2 845.8 841.6 836.2 833.0 836.2 846.7 848.0 846.2 846.6 848.0 DAY 9 20 18 5 14 9 3 23 23 10 1 7 MIN. QFE PRESSURE IN HPA 834.2 832.4 833.5 832.9 833.6 828.0 828.5 829.0 833.6 839.5 836.8 833.4 828.0 DAY 25 12 12 3 1 28 9 2 1 3 26 4 MEAN QNH PRESSURE IN HPA 1017.2 1013.4 1014.9 1014.8 1013.7 1007.4 1005.5 1008.1 1016.4 1020.0 1019.0 1018.9 1014.1 MAX. QNH PRESSURE IN HPA 1023.9 1020.1 1018.8 1023.0 1018.1 1011.8 1008.1 1011.8 1024.1 1025.6 1023.5 1023.9 1025.6 DAY 9 20 18 5 14 9 3 23 23 10 1 7 MIN. QNH PRESSURE IN HPA 1009.5 1007.4 1008.7 1008.0 1008.8 1002.2 1002.8 1003.4 1008.8 1015.7 1012.5 1008.5 1002.2 DAY 25 12 12 3 1 28 9 2 1 3 26 4 MEAN QFF PRESSURE IN HPA 1016.1 1011.7 1009.7 1005.9 1001.6 991.2 988.4 991.9 1005.6 1012.4 1013.0 1018.5 1005.5 MAX. QFF PRESSURE IN HPA 1026.9 1023.6 1016.5 1020.5 1007.3 997.4 992.6 997.6 1016.7 1021.1 1017.7 1029.9 1029.9 DAY 10 20 18 5 8 9 13 23 22 10 21 7 MIN. QFF PRESSURE IN HPA 1007.1 1001.1 1001.1 999.2 996.5 984.2 984.1 986.3 993.3 1005.1 1006.2 1002.0 984.1 DAY 5 12 12 26 24 27 8 3 1 2 30 4 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 841.4 838.3 839.3 839.6 838.2 833.2 831.8 833.7 ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 847.3 844.1 842.6 845.8 842.1 837.2 834.8 836.7 ****** ****** ****** ****** ****** DAY 9 20 18 5 14 9 13 28 ** ** ** ** MIN. QFE PRESSURE IN HPA 835.0 833.4 835.0 833.9 834.7 828.8 829.2 830.0 ****** ****** ****** ****** ****** DAY 25 12 12 3 1 29 7 2 ** ** ** ** MEAN QNH PRESSURE IN HPA 1017.9 1014.3 1015.4 1015.7 1014.1 1008.3 1006.6 1008.9 ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1024.8 1021.0 1019.3 1023.0 1018.7 1013.0 1010.2 1012.4 ****** ****** ****** ****** ****** DAY 9 20 18 5 14 9 13 28 ** ** ** ** MIN. QNH PRESSURE IN HPA 1010.4 1008.5 1010.4 1009.1 1010.1 1003.2 1003.6 1004.6 ****** ****** ****** ****** ****** DAY 25 12 12 3 1 29 7 2 ** ** ** ** MEAN QFF PRESSURE IN HPA 1016.0 1011.6 1009.3 1006.1 1001.8 992.1 989.3 992.1 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1026.9 1023.9 1016.9 1020.1 1008.5 999.1 994.8 996.8 ****** ****** ****** ****** ****** DAY 10 19 17 5 7 9 13 24 ** ** ** ** MIN. QFF PRESSURE IN HPA 1006.4 1002.4 1002.2 998.7 996.7 984.2 983.9 986.1 ****** ****** ****** ****** ****** DAY 5 12 12 30 1 27 8 2 ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 841.5 838.8 839.6 840.0 838.6 833.7 832.2 834.0 ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 847.7 844.1 843.0 846.1 842.6 838.1 835.8 836.7 ****** ****** ****** ****** ****** DAY 9 20 18 5 14 9 13 28 ** ** ** ** MIN. QFE PRESSURE IN HPA 835.3 833.6 836.2 834.9 835.6 829.6 829.8 830.0 ****** ****** ****** ****** ****** DAY 16 11 11 3 1 28 7 2 ** ** ** ** MEAN QNH PRESSURE IN HPA 1018.0 1014.8 1015.8 1016.3 1014.6 1008.9 1007.1 1009.3 ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1025.2 1021.0 1019.7 1023.4 1019.3 1014.0 1011.3 1012.4 ****** ****** ****** ****** ****** DAY 9 20 18 5 14 9 13 28 ** ** ** ** MIN. QNH PRESSURE IN HPA 1010.8 1008.8 1011.8 1010.3 1011.1 1004.1 1004.3 1004.6 ****** ****** ****** ****** ****** DAY 16 11 11 3 1 28 7 2 ** ** ** ** MEAN QFF PRESSURE IN HPA 1015.4 1011.7 1009.4 1006.3 1002.1 992.7 989.6 992.5 ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1026.5 1023.9 1016.9 1020.4 1007.5 1000.2 996.2 997.1 ****** ****** ****** ****** ****** DAY 9 20 17 5 11 9 13 24 ** ** ** ** MIN. QFF PRESSURE IN HPA 1005.2 1002.9 1004.2 998.7 996.7 986.6 985.1 986.2 ****** ****** ****** ****** ****** DAY 16 11 12 30 24 27 8 2 ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.7 9.9 13.1 18.8 24.4 30.0 34.3 31.3 27.1 20.4 15.5 7.3 20.1 MINIMUN AIR TEMPERATURE (C) 1.9 3.3 5.5 10.9 15.1 19.9 23.7 19.9 16.6 10.9 5.5 1.5 11.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 15 26 10 0 0 0 0 51 DAYS WITH MINIMUM TEMP. <=-4 0 1 0 0 0 0 0 0 0 0 1 0 2 DAYS WITH FREEZING MIN.<= 0 12 5 4 0 0 0 0 0 0 0 4 9 34 TEMPERATURE RECORDS LOWEST(C) -2.0 -4.0 -2.0 3.2 12.0 12.0 18.0 15.2 11.4 5.0 -5.0 -2.4 -5.0 DAY 8 26 1 8 31 1 27 9 23 28 28 14 MAXIMUM AIR TEMPERATURE (C) 14.8 14.3 17.8 23.5 29.2 34.8 38.9 36.3 32.4 25.6 21.4 11.2 25.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 13 27 31 31 26 8 0 0 136 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.6 20.6 24.6 28.4 33.8 39.0 41.2 38.6 35.4 31.6 26.8 16.4 41.2 DAY 17 22 25 19 7 16 8 7 10 5 11 2 DIF. BETWEEN (MAX.-MIN.) (C) 12.9 11.0 12.3 12.6 14.1 14.9 15.2 16.4 15.8 14.7 15.9 9.7 13.8 MEAN DAILY TEMP. (MDT) (C) 8.4 8.8 11.7 17.2 22.1 27.4 31.3 28.1 24.5 18.2 13.5 6.4 18.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.2 43.3 193.6 319.7 220.3 106.1 20.3 0.0 0.0 904.6 HEATING DEG. DAYS(BASE 18 0C) 298.8 258.3 196.0 46.7 0.0 0.0 0.0 0.0 0.0 52.0 136.6 360.7 1349.1 DEWPOINT (MEAN C) -4.4 -4.4 -5.6 -0.6 -1.9 -0.3 0.9 1.1 2.9 0.3 -6.2 -0.2 -1.5 MIXING RATIO (G/KG) 3.46 3.60 3.63 4.67 4.45 4.65 5.12 5.19 5.93 4.91 3.00 4.60 4.44 VAPOUR PRESSURE (HPA) 4.66 4.83 4.86 6.25 5.95 6.21 6.79 6.91 7.91 6.60 4.05 6.18 5.93 SATURATION DEF. (HPA) 7.19 7.83 10.98 16.32 25.43 37.93 48.86 40.28 29.37 19.05 14.96 4.39 21.88 RELATIVE HUMIDITY (MEAN %) 44 40 35 32 22 17 13 15 23 29 24 63 30 RELATIVE HUMIDITY (MAX. %) 65 59 54 52 34 26 20 23 33 44 37 81 44 RELATIVE HUMIDITY (MIN. %) 27 27 22 20 14 10 9 11 17 20 16 49 20 RELATIVE HUMIDITY (MEAN% 03UTC) 63 56 51 51 33 26 19 22 33 42 37 77 43 RELATIVE HUMIDITY (MEAN% 09UTC) 34 33 28 27 17 14 11 13 19 24 18 56 25 RELATIVE HUMIDITY (MEAN% 15UTC) 38 37 32 27 20 12 12 13 21 28 22 62 27 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 20.3 17.5 45.0 18.8 2.0 0.0 0.0 0.0 0.0 15.0 0.0 30.2 148.8 DAYS WITH PRECIPITATION >=10 1 0 1 1 0 0 0 0 0 1 0 1 5 DAYS WITH PRECIPITATION >= 5 2 2 4 2 0 0 0 0 0 1 0 2 13 DAYS WITH PRECIPITATION >= 1 4 3 6 2 1 0 0 0 0 1 0 4 21 DAYS WITH PRECIPITATION 5 4 6 5 1 1 1 0 0 2 0 8 33 GREATEST DAILY PRECIPITATION 11.0 8.1 17.0 12.0 2.0 0.0 0.0 0.0 0.0 14.0 0.0 14.1 17.0 DAY 13 6 21 7 26 ** ** ** ** 23 ** 12 DAY WITH THUNDER STORM 0 0 0 2 2 1 0 0 0 1 0 0 6 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 1 1 0 4 2 0 0 0 1 0 9 WIND DIRECTION (PREVAILING) 225 315 315 270 315 315 315 315 315 315 225 315 315 PREVAILING WIND SPEED(KNOTS) 13.9 10.9 10.0 14.2 9.6 10.4 10.6 9.9 10.6 8.9 11.5 7.4 9.8 PREVAILING WIND PERCENT 19.1 23.6 23.9 20.0 38.1 31.1 35.5 38.1 25.3 38.1 28.7 19.4 25.4 CALMS PERCENT OF WIND 48.1 21.4 25.8 27.3 20.0 22.5 17.4 7.1 17.3 20.6 22.0 34.8 24.1 NO. OF WIND OBSERVATION 183 140 155 150 155 151 155 155 150 155 150 155 1854 VECTOR WIND DIRECTION (MEAN) 248 267 268 258 305 307 340 338 312 298 257 282 292 VECTOR WIND MAGNITUDE(KNOTS) 3.7 5.0 5.2 5.2 5.2 4.2 4.8 5.6 4.0 4.4 3.4 1.8 3.8 WIND STEADINESES (MEAN %) 61.7 56.2 61.9 62.7 65.0 51.9 57.1 60.9 46.0 60.3 44.2 32.7 48.1 WIND SPEED (MEAN KNOTS) 6.0 8.9 8.4 8.3 8.0 8.1 8.4 9.2 8.7 7.3 7.7 5.5 7.9 FASTEST WIND DIRECTION 220 240 240 240 270 30 360 360 120 270 240 220 270 FASTEST WIND SPEED (KNOTS) 31 31 35 31 39 23 19 21 35 19 21 17 39 DAY 1 9 27 21 4 3 17 7 16 7 26 6 DAYS WITH SKY CLEAR (0-2)/8 20 15 19 14 25 26 26 31 29 29 28 11 273 DAYS WITH P.CLOUDY (3-6)/8 9 9 6 9 6 4 5 0 1 1 2 10 62 DAYS WITH CLOUDY (7-8)/8 2 4 6 7 0 0 0 0 0 1 0 10 30 DAYS WITH VISIBILITY =< 2 KM 0 0 2 0 1 0 0 0 1 0 0 6 10 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** 366.1 314.3 307.5 290.5 157.2 ****** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 842.9 840.1 839.4 839.3 840.0 835.8 831.7 835.7 839.1 842.6 842.7 842.7 839.3 MAX. QFE PRESSURE IN HPA 849.8 845.0 846.9 844.4 845.5 843.0 836.4 840.1 845.2 850.2 848.9 846.8 850.2 DAY-HOUR 7- 6 2- 6 3- 6 3- 6 26- 9 1- 6 29- 6 25- 6 13- 6 27- 6 16- 6 10- 6 MIN. QFE PRESSURE IN HPA 837.6 834.1 833.3 833.8 833.8 830.0 827.5 830.9 835.2 837.7 835.3 836.6 827.5 DAY-HOUR 1- 9 9-12 27-12 24-15 14-12 17-15 16-15 3-12 19-15 15-12 26- 3 25-12 MEAN QNH PRESSURE IN HPA 1019.6 1016.3 1015.5 1015.4 1016.2 1011.3 1006.6 1011.2 1015.2 1019.3 1019.4 1019.4 1015.5 MAX. QNH PRESSURE IN HPA 1027.7 1022.1 1024.3 1021.4 1022.7 1019.7 1012.0 1016.4 1022.3 1028.1 1026.6 1024.2 1028.1 DAY-HOUR 7- 6 2- 6 3- 6 3- 6 26- 9 1- 6 29- 6 25- 6 13- 6 27- 6 16- 6 10- 6 MIN. QNH PRESSURE IN HPA 1013.4 1009.4 1008.4 1009.0 1009.0 1004.6 1001.7 1005.6 1010.6 1013.6 1010.8 1012.3 1001.7 DAY-HOUR 1- 9 9-12 27-12 24-15 14-12 17-15 16-15 3-12 19-15 15-12 26- 3 25-12 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 843.2 840.5 839.9 839.9 840.8 836.8 832.7 836.4 839.9 843.3 843.3 843.2 840.0 MAX. QFE PRESSURE IN HPA 847.6 844.1 845.1 843.4 844.7 841.7 835.9 839.5 844.1 849.4 847.6 846.2 849.4 DAY 7 2 3 3 27 2 29 25 13 27 16 11 MIN. QFE PRESSURE IN HPA 839.2 834.8 834.5 835.9 837.1 833.2 829.3 833.4 837.0 839.7 835.3 837.8 829.3 DAY 1 24 27 25 10 17 17 3 5 16 26 25 MEAN QNH PRESSURE IN HPA 1019.9 1016.8 1016.1 1016.2 1017.2 1012.5 1007.8 1012.1 1016.1 1020.1 1020.1 1019.9 1016.2 MAX. QNH PRESSURE IN HPA 1025.1 1021.0 1022.2 1020.2 1021.7 1018.2 1011.5 1015.7 1021.0 1027.2 1025.1 1023.5 1027.2 DAY 7 2 3 3 27 2 29 25 13 27 16 11 MIN. QNH PRESSURE IN HPA 1015.3 1010.2 1009.8 1011.5 1012.9 1008.3 1003.8 1008.5 1012.7 1015.9 1010.8 1013.7 1003.8 DAY 1 24 27 25 10 17 17 3 5 16 26 25 MEAN QFF PRESSURE IN HPA 1018.4 1014.7 1012.4 1008.2 1005.7 997.5 990.3 996.8 1003.6 1011.9 1016.0 1019.5 1007.9 MAX. QFF PRESSURE IN HPA 1026.2 1022.5 1020.2 1013.4 1012.3 1009.9 995.9 999.7 1009.1 1022.0 1026.2 1024.4 1026.2 DAY 8 26 3 1 27 1 29 25 23 27 28 19 MIN. QFF PRESSURE IN HPA 1009.2 1006.1 1002.9 1003.4 1001.6 991.3 985.0 992.7 999.0 1004.0 1004.7 1009.4 985.0 DAY 1 24 26 20 9 17 17 3 1 13 26 6 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 844.4 841.5 840.8 840.7 841.4 837.3 833.0 837.1 840.6 844.4 844.3 844.1 840.8 MAX. QFE PRESSURE IN HPA 849.8 845.0 846.9 844.4 845.0 843.0 836.4 840.1 845.2 850.2 848.9 846.8 850.2 DAY 7 2 3 3 27 1 29 25 13 27 16 10 MIN. QFE PRESSURE IN HPA 840.4 835.6 834.7 836.0 837.4 833.9 829.8 833.9 837.5 840.5 837.6 838.4 829.8 DAY 1 24 27 25 15 17 16 8 5 16 26 25 MEAN QNH PRESSURE IN HPA 1021.4 1018.0 1017.1 1017.1 1017.8 1013.1 1008.1 1012.8 1017.0 1021.3 1021.3 1021.1 1017.2 MAX. QNH PRESSURE IN HPA 1027.7 1022.1 1024.3 1021.4 1022.1 1019.7 1012.0 1016.4 1022.3 1028.1 1026.6 1024.2 1028.1 DAY 7 2 3 3 27 1 29 25 13 27 16 10 MIN. QNH PRESSURE IN HPA 1016.7 1011.1 1010.1 1011.6 1013.2 1009.1 1004.3 1009.1 1013.3 1016.8 1013.4 1014.4 1004.3 DAY 1 24 27 25 15 17 16 8 5 16 26 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 842.9 840.4 839.7 839.6 840.3 836.1 832.0 836.0 839.3 842.7 842.4 842.6 839.5 MAX. QFE PRESSURE IN HPA 848.4 844.0 845.6 843.3 845.5 842.0 835.4 838.8 843.7 848.3 846.9 845.7 848.4 DAY 7 14 3 12 26 1 28 25 13 27 16 10 MIN. QFE PRESSURE IN HPA 837.6 835.1 834.1 835.0 836.5 832.5 829.0 832.6 836.8 838.6 836.6 838.5 829.0 DAY 1 24 27 24 14 17 17 8 5 16 26 25 MEAN QNH PRESSURE IN HPA 1019.7 1016.7 1015.9 1015.8 1016.5 1011.7 1006.9 1011.6 1015.4 1019.3 1019.1 1019.3 1015.7 MAX. QNH PRESSURE IN HPA 1026.0 1020.9 1022.8 1020.1 1022.7 1018.6 1010.9 1014.8 1020.6 1025.9 1024.3 1022.9 1026.0 DAY 7 14 3 12 26 1 28 25 13 27 16 10 MIN. QNH PRESSURE IN HPA 1013.4 1010.5 1009.4 1010.4 1012.2 1007.5 1003.4 1007.6 1012.5 1014.6 1012.3 1014.5 1003.4 DAY 1 24 27 24 14 17 17 8 5 16 26 25 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 841.5 838.7 838.2 837.9 838.7 834.5 830.5 834.5 837.7 841.2 841.2 841.4 838.0 MAX. QFE PRESSURE IN HPA 847.1 842.5 843.5 841.1 844.9 840.4 834.2 837.1 842.0 846.7 845.7 844.8 847.1 DAY 7 14 3 12 26 1 28 25 13 26 16 10 MIN. QFE PRESSURE IN HPA 838.1 834.1 833.3 833.9 833.8 830.5 827.7 830.9 835.6 837.7 836.4 836.6 827.7 DAY 25 9 27 24 14 17 16 3 5 15 26 25 MEAN QNH PRESSURE IN HPA 1017.9 1014.8 1014.1 1013.8 1014.8 1009.8 1005.2 1009.8 1013.6 1017.6 1017.7 1017.9 1013.9 MAX. QNH PRESSURE IN HPA 1024.5 1019.2 1020.3 1017.5 1022.0 1016.7 1009.5 1012.9 1018.6 1024.1 1022.9 1021.8 1024.5 DAY 7 14 3 12 26 1 28 25 13 26 16 10 MIN. QNH PRESSURE IN HPA 1014.0 1009.4 1008.4 1009.1 1009.0 1005.2 1001.9 1005.6 1011.1 1013.6 1012.0 1012.3 1001.9 DAY 25 9 27 24 14 17 16 3 5 15 26 25 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 842.2 839.3 838.5 838.2 838.9 834.2 830.4 834.5 837.9 841.6 842.1 842.1 838.3 MAX. QFE PRESSURE IN HPA 848.0 842.2 843.5 841.4 843.7 840.7 833.5 837.5 842.0 847.2 845.8 845.5 848.0 DAY 7 2 3 12 26 1 28 25 13 26 17 10 MIN. QFE PRESSURE IN HPA 839.0 834.9 833.9 833.8 833.8 830.0 827.5 831.2 835.2 837.8 837.5 838.5 827.5 DAY 24 23 29 24 14 17 16 8 19 13 25 25 MEAN QNH PRESSURE IN HPA 1018.8 1015.4 1014.5 1014.1 1015.0 1009.5 1005.0 1009.8 1013.8 1018.2 1018.7 1018.7 1014.3 MAX. QNH PRESSURE IN HPA 1025.6 1018.8 1020.3 1017.9 1020.6 1017.1 1008.7 1013.3 1018.6 1024.6 1023.0 1022.7 1025.6 DAY 7 2 3 12 26 1 28 25 13 26 17 10 MIN. QNH PRESSURE IN HPA 1015.1 1010.3 1009.1 1009.0 1009.0 1004.6 1001.7 1006.0 1010.6 1013.7 1013.3 1014.5 1001.7 DAY 24 23 29 24 14 17 16 8 19 13 25 25 MEAN QFF PRESSURE IN HPA 1017.2 1013.3 1010.7 1006.1 1003.5 994.4 987.5 994.4 1001.2 1009.9 1014.6 1018.2 1005.9 MAX. QFF PRESSURE IN HPA 1026.2 1018.6 1018.6 1012.7 1010.3 1007.2 992.9 997.6 1006.8 1019.9 1024.3 1023.0 1026.2 DAY 7 14 3 7 26 1 28 25 22 29 27 10 MIN. QFF PRESSURE IN HPA 1012.1 1004.7 1003.8 1001.9 998.3 987.7 983.4 990.7 997.5 1001.7 1007.6 1010.2 983.4 DAY 12 23 18 19 14 17 17 8 19 13 6 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 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.8 11.2 13.5 19.9 25.3 30.8 29.9 30.0 28.5 20.7 11.7 9.2 19.6 MINIMUN AIR TEMPERATURE (C) -1.2 3.7 7.0 11.4 15.7 21.2 20.7 19.4 17.2 10.4 3.4 1.1 10.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 19 17 5 0 0 0 0 42 DAYS WITH MINIMUM TEMP. <=-4 6 1 0 0 0 0 0 0 0 0 0 1 8 DAYS WITH FREEZING MIN.<= 0 18 6 0 0 0 0 0 0 0 0 6 13 43 TEMPERATURE RECORDS LOWEST(C) -16.6 -4.0 2.0 3.0 10.4 15.0 18.4 16.6 13.4 4.0 -2.4 -5.5 -16.6 DAY 16 25 18 5 23 18 2 5 1 22 19 4 MAXIMUM AIR TEMPERATURE (C) 9.0 16.3 18.4 24.5 30.0 35.4 34.3 34.8 34.0 26.5 17.8 17.0 24.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 15 30 31 31 30 4 0 0 142 DAYS WITH MAXIMUM TEMP. <= 0 4 0 0 0 0 0 0 0 0 0 0 0 4 TEMPERATURE RECORDS HIGHEST(C) 20.0 23.4 25.4 30.4 36.4 38.6 38.0 37.0 38.0 32.2 26.6 22.4 38.6 DAY 29 9 31 27 31 9 10 25 11 30 6 29 DIF. BETWEEN (MAX.-MIN.) (C) 10.2 12.6 11.4 13.1 14.3 14.2 13.6 15.4 16.8 16.1 14.4 15.9 14.0 MEAN DAILY TEMP. (MDT) (C) 3.9 10.0 12.7 17.9 22.8 28.3 27.5 27.1 25.6 18.4 10.6 9.0 17.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 9.6 68.7 219.0 201.2 188.5 139.2 4.6 0.0 0.0 830.8 HEATING DEG. DAYS(BASE 18 0C) 437.5 232.1 165.4 44.0 0.0 0.0 0.0 0.0 0.0 31.0 222.1 277.8 1409.9 DEWPOINT (MEAN C) -3.5 -2.0 0.9 0.6 3.6 3.8 4.1 -1.4 -2.9 -5.7 -6.8 -10.9 -1.7 MIXING RATIO (G/KG) 3.62 4.17 5.16 5.04 6.01 6.39 6.45 4.31 3.85 3.27 2.90 2.12 4.44 VAPOUR PRESSURE (HPA) 4.87 5.59 6.88 6.75 8.03 8.49 8.57 5.76 5.16 4.41 3.91 2.87 5.94 SATURATION DEF. (HPA) 4.76 8.55 9.30 17.68 25.65 37.06 34.62 37.94 35.60 21.42 10.83 9.64 21.09 RELATIVE HUMIDITY (MEAN %) 59 45 48 31 27 20 21 14 14 19 31 26 30 RELATIVE HUMIDITY (MAX. %) 75 69 73 47 41 29 27 23 22 31 43 43 44 RELATIVE HUMIDITY (MIN. %) 46 28 31 21 18 15 16 9 9 12 20 16 20 RELATIVE HUMIDITY (MEAN% 03UTC) 73 65 70 46 41 28 27 23 22 30 40 38 42 RELATIVE HUMIDITY (MEAN% 09UTC) 52 33 36 25 22 17 18 12 12 16 23 20 24 RELATIVE HUMIDITY (MEAN% 15UTC) 59 44 42 28 24 18 18 11 11 17 27 22 27 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 29.9 11.4 40.9 8.4 9.2 0.2 0.0 0.0 0.0 0.8 2.0 0.0 102.8 DAYS WITH PRECIPITATION >=10 1 0 1 0 0 0 0 0 0 0 0 0 2 DAYS WITH PRECIPITATION >= 5 1 1 4 0 1 0 0 0 0 0 0 0 7 DAYS WITH PRECIPITATION >= 1 6 3 7 3 3 0 0 0 0 0 1 0 23 DAYS WITH PRECIPITATION 10 8 14 5 5 4 1 0 0 1 1 0 49 GREATEST DAILY PRECIPITATION 20.6 6.2 14.4 4.0 7.0 0.1 0.0 0.0 0.0 0.8 2.0 0.0 20.6 DAY 12 5 13 16 23 12 ** ** ** 18 29 ** DAY WITH THUNDER STORM 0 1 1 1 6 4 1 0 1 0 0 0 15 DAYS WITH SNOW OR SLEET 5 0 0 0 0 0 0 0 0 0 0 0 5 DAYS WITH DUST 0 0 0 0 0 0 1 0 1 0 0 0 2 WIND DIRECTION (PREVAILING) 225 225 225 315 315 315 315 315 315 315 315 225 315 PREVAILING WIND SPEED(KNOTS) 12.3 14.7 16.9 10.0 9.9 9.7 10.8 10.1 7.5 9.6 7.5 8.7 9.4 PREVAILING WIND PERCENT 22.6 30.3 31.0 23.2 26.5 27.3 36.1 43.9 30.7 22.6 15.6 21.1 23.7 CALMS PERCENT OF WIND 27.1 20.0 23.2 23.2 29.7 22.7 15.5 11.6 21.3 39.4 48.0 38.8 27.4 NO. OF WIND OBSERVATION 155 145 155 151 155 150 155 155 150 155 179 209 1914 VECTOR WIND DIRECTION (MEAN) 262 248 247 279 310 319 332 329 319 281 265 233 287 VECTOR WIND MAGNITUDE(KNOTS) 3.8 5.5 6.5 5.6 4.3 3.8 5.9 5.4 3.5 4.3 2.0 3.0 3.7 WIND STEADINESES (MEAN %) 55.1 57.3 63.1 62.9 62.3 50.0 67.0 64.3 56.5 70.5 54.1 61.2 50.0 WIND SPEED (MEAN KNOTS) 6.9 9.6 10.3 8.9 6.9 7.6 8.8 8.4 6.2 6.1 3.7 4.9 7.4 FASTEST WIND DIRECTION 240 240 210 250 310 100 220 240 250 310 270 240 100 FASTEST WIND SPEED (KNOTS) 23 39 39 39 39 49 29 19 23 39 16 27 49 DAY 4 5 13 15 14 13 7 18 22 17 27 15 DAYS WITH SKY CLEAR (0-2)/8 11 9 5 15 17 21 27 29 30 30 20 25 239 DAYS WITH P.CLOUDY (3-6)/8 13 15 17 10 12 9 4 2 0 1 10 6 99 DAYS WITH CLOUDY (7-8)/8 7 5 9 5 2 0 0 0 0 0 0 0 28 DAYS WITH VISIBILITY =< 2 KM 2 0 0 0 0 0 0 0 1 0 0 0 3 DURATION OF SUNSHINE HOURS 192.6 185.2 182.7 256.4 300.7 320.9 345.3 358.4 322.8 314.9 242.8 269.0 3291.7 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 841.7 839.3 837.7 839.8 839.6 836.1 836.1 837.0 838.2 842.6 844.3 844.3 839.7 MAX. QFE PRESSURE IN HPA 847.8 845.0 843.8 844.7 844.2 840.6 842.3 843.0 846.2 848.3 853.6 850.0 853.6 DAY-HOUR 26- 6 24- 6 29- 6 8- 6 7- 6 3- 6 3- 6 30- 6 25- 6 20- 6 19- 6 4- 6 MIN. QFE PRESSURE IN HPA 834.1 831.4 831.9 834.1 833.6 831.1 831.2 831.8 831.6 835.0 838.4 837.8 831.1 DAY-HOUR 12-12 5-12 14-12 10-15 29-15 19-15 12-12 8-15 20-12 6-12 28-12 15-12 MEAN QNH PRESSURE IN HPA 1018.2 1015.4 1013.6 1016.0 1015.7 1011.7 1011.6 1012.7 1014.1 1019.3 1021.2 1021.3 1015.9 MAX. QNH PRESSURE IN HPA 1025.3 1022.1 1020.7 1021.7 1021.1 1016.9 1018.9 1019.7 1023.5 1025.9 1032.1 1027.9 1032.1 DAY-HOUR 26- 6 24- 6 29- 6 8- 6 7- 6 3- 6 3- 6 30- 6 25- 6 20- 6 19- 6 4- 6 MIN. QNH PRESSURE IN HPA 1009.4 1006.2 1006.8 1009.4 1008.8 1005.9 1006.0 1006.7 1006.4 1010.4 1014.4 1013.7 1005.9 DAY-HOUR 12-12 5-12 14-12 10-15 29-15 19-15 12-12 8-15 20-12 6-12 28-12 15-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1019.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1029.8 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 4- 3 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1007.6 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 15-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 844.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 848.6 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 8 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 839.9 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 15 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.7 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.3 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 8 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1016.1 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1018.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.8 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 4 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1008.6 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 15 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 841.9 839.8 838.2 840.4 840.5 837.0 837.1 837.8 839.0 843.4 845.2 844.6 840.4 MAX. QFE PRESSURE IN HPA 846.4 844.6 842.1 843.9 843.9 839.8 841.5 842.2 845.2 847.6 852.8 849.3 852.8 DAY 27 9 29 8 7 2 3 30 25 20 19 8 MIN. QFE PRESSURE IN HPA 835.8 834.2 834.4 836.3 836.7 833.9 833.8 834.5 834.5 837.6 839.9 840.3 833.8 DAY 12 5 14 11 30 20 7 9 20 6 29 15 MEAN QNH PRESSURE IN HPA 1018.5 1016.0 1014.2 1016.7 1016.8 1012.8 1012.8 1013.7 1015.1 1020.2 1022.3 1021.6 1016.7 MAX. QNH PRESSURE IN HPA 1023.7 1021.6 1018.7 1020.8 1020.8 1016.0 1018.0 1018.8 1022.3 1025.1 1031.2 1027.1 1031.2 DAY 27 9 29 8 7 2 3 30 25 20 19 8 MIN. QNH PRESSURE IN HPA 1011.3 1009.5 1009.7 1011.9 1012.4 1009.1 1009.0 1009.8 1009.8 1013.4 1016.1 1016.6 1009.0 DAY 12 5 14 11 30 20 7 9 20 6 29 15 MEAN QFF PRESSURE IN HPA 1019.3 1013.4 1009.7 1008.0 1004.6 997.2 997.8 999.2 1002.1 1012.4 1019.6 1020.6 1008.6 MAX. QFF PRESSURE IN HPA 1027.5 1022.0 1015.5 1017.4 1011.2 1000.4 1003.2 1006.1 1010.0 1021.7 1033.7 1029.8 1033.7 DAY 27 24 30 7 7 28 3 31 25 20 19 4 MIN. QFF PRESSURE IN HPA 1012.7 1006.5 1004.7 1002.6 997.3 992.5 992.2 993.5 996.2 1003.6 1011.9 1011.9 992.2 DAY 19 16 13 11 30 25 12 9 20 6 2 15 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 843.1 840.8 839.3 841.2 841.0 837.5 837.5 838.4 839.8 844.3 846.2 845.8 841.2 MAX. QFE PRESSURE IN HPA 847.8 845.0 843.8 844.7 844.2 840.6 842.3 843.0 846.2 848.3 853.6 850.0 853.6 DAY 26 24 29 8 7 3 3 30 25 20 19 4 MIN. QFE PRESSURE IN HPA 835.8 833.6 834.8 838.0 836.6 834.4 834.1 834.8 834.8 838.5 841.0 841.2 833.6 DAY 12 5 14 10 29 20 7 9 20 5 29 15 MEAN QNH PRESSURE IN HPA 1019.8 1017.2 1015.4 1017.7 1017.4 1013.3 1013.3 1014.4 1016.0 1021.3 1023.5 1023.0 1017.7 MAX. QNH PRESSURE IN HPA 1025.3 1022.1 1020.7 1021.7 1021.1 1016.9 1018.9 1019.7 1023.5 1025.9 1032.1 1027.9 1032.1 DAY 26 24 29 8 7 3 3 30 25 20 19 4 MIN. QNH PRESSURE IN HPA 1011.3 1008.8 1010.2 1013.9 1012.3 1009.7 1009.4 1010.2 1010.2 1014.5 1017.4 1017.6 1008.8 DAY 12 5 14 10 29 20 7 9 20 5 29 15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1029.6 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 4 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1013.6 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 15 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 841.7 839.3 837.9 840.2 839.9 836.4 836.3 837.2 838.5 842.6 844.5 844.0 839.9 MAX. QFE PRESSURE IN HPA 846.7 843.8 842.1 843.6 843.2 839.4 841.4 841.2 845.0 847.1 851.8 848.3 851.8 DAY 26 8 29 7 8 2 3 30 25 20 18 8 MIN. QFE PRESSURE IN HPA 834.7 831.6 833.6 837.1 835.8 833.4 833.4 833.8 832.5 836.7 839.4 839.0 831.6 DAY 12 5 14 10 29 25 7 8 20 6 28 15 MEAN QNH PRESSURE IN HPA 1018.2 1015.5 1013.8 1016.4 1016.2 1012.0 1012.0 1013.0 1014.4 1019.2 1021.5 1020.9 1016.1 MAX. QNH PRESSURE IN HPA 1024.1 1020.7 1018.7 1020.4 1020.0 1015.5 1017.9 1017.6 1022.1 1024.5 1030.0 1025.9 1030.0 DAY 26 8 29 7 8 2 3 30 25 20 18 8 MIN. QNH PRESSURE IN HPA 1010.1 1006.4 1008.8 1012.9 1011.3 1008.5 1008.5 1009.0 1007.5 1012.4 1015.5 1015.1 1006.4 DAY 12 5 14 10 29 25 7 8 20 6 28 15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1018.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.5 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 4 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1010.5 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 15 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 840.5 838.0 836.4 838.6 838.3 834.9 834.8 835.7 836.8 841.2 843.1 842.7 838.4 MAX. QFE PRESSURE IN HPA 845.1 842.6 841.0 842.8 842.1 837.7 840.0 839.7 843.3 845.6 850.8 846.6 850.8 DAY 26 8 29 7 7 3 3 31 25 19 18 4 MIN. QFE PRESSURE IN HPA 834.1 831.4 831.9 834.5 834.3 831.9 831.2 832.4 831.6 835.0 838.4 837.8 831.2 DAY 12 5 14 10 29 19 12 8 20 6 28 15 MEAN QNH PRESSURE IN HPA 1016.8 1013.9 1012.1 1014.6 1014.3 1010.3 1010.2 1011.3 1012.5 1017.6 1019.9 1019.4 1014.4 MAX. QNH PRESSURE IN HPA 1022.2 1019.3 1017.4 1019.5 1018.7 1013.6 1016.2 1015.9 1020.1 1022.8 1028.8 1023.9 1028.8 DAY 26 8 29 7 7 3 3 31 25 19 18 4 MIN. QNH PRESSURE IN HPA 1009.4 1006.2 1006.8 1009.8 1009.6 1006.8 1006.0 1007.4 1006.4 1010.4 1014.4 1013.7 1006.0 DAY 12 5 14 10 29 19 12 8 20 6 28 15 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1016.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.4 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 4 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1007.6 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 15 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 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 841.3 838.7 837.0 838.9 838.3 834.7 834.7 835.6 836.9 841.6 843.7 843.5 838.7 MAX. QFE PRESSURE IN HPA 846.3 843.7 841.4 843.6 843.8 837.7 840.3 839.7 843.3 846.2 851.8 847.5 851.8 DAY 26 8 29 15 7 3 3 31 25 19 18 7 MIN. QFE PRESSURE IN HPA 835.1 833.6 833.3 834.1 833.6 831.1 831.4 831.8 831.8 835.5 838.8 839.1 831.1 DAY 12 5 14 10 29 19 12 8 20 5 28 15 MEAN QNH PRESSURE IN HPA 1017.8 1014.7 1012.7 1014.9 1014.2 1010.1 1010.1 1011.1 1012.6 1018.1 1020.6 1020.4 1014.8 MAX. QNH PRESSURE IN HPA 1023.6 1020.6 1017.9 1020.4 1020.7 1013.6 1016.6 1015.9 1020.1 1023.5 1030.0 1025.0 1030.0 DAY 26 8 29 15 7 3 3 31 25 19 18 7 MIN. QNH PRESSURE IN HPA 1010.5 1008.8 1008.4 1009.4 1008.8 1005.9 1006.2 1006.7 1006.7 1011.0 1014.8 1015.2 1005.9 DAY 12 5 14 10 29 19 12 8 20 5 28 15 MEAN QFF PRESSURE IN HPA 1018.9 1012.0 1008.2 1006.0 1002.0 994.4 994.9 996.7 999.5 1010.3 1017.9 1019.2 1006.7 MAX. QFF PRESSURE IN HPA 1029.0 1020.5 1014.8 1014.6 1012.1 999.3 1001.7 1004.0 1008.0 1019.3 1031.6 1028.3 1031.6 DAY 16 24 29 15 7 12 3 31 25 20 18 4 MIN. QFF PRESSURE IN HPA 1012.2 1006.9 1003.9 998.9 993.9 989.1 988.5 991.9 993.1 1001.1 1009.9 1010.7 988.5 DAY 6 10 13 27 29 25 12 9 20 6 1 15 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 844.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 848.4 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 7 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 841.7 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 11 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1022.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.0 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 7 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1018.2 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 11 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1020.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1027.7 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 3 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1013.9 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 29 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 844.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 848.4 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 7 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 840.7 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 14 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1021.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.0 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 7 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1017.1 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 14 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1018.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1027.0 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 3 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1011.1 ****** DAY ** ** ** ** ** ** ** ** ** ** ** 14 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION RAFSANJAN (99502) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 25 N LONGITUDE 55 54 E DATA PROCESSING CENTER ELEVATION 1580.9 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.0 8.8 11.6 16.2 22.7 28.0 32.4 29.2 25.7 19.8 11.4 8.2 18.4 MINIMUN AIR TEMPERATURE (C) 0.3 2.1 5.4 9.8 15.7 20.4 24.0 20.6 17.3 12.9 5.9 2.3 11.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 15 27 17 1 0 0 0 61 DAYS WITH MINIMUM TEMP. <=-4 2 4 0 0 0 0 0 0 0 0 0 0 6 DAYS WITH FREEZING MIN.<= 0 18 12 2 0 0 0 0 0 0 0 1 7 40 TEMPERATURE RECORDS LOWEST(C) -5.0 -7.4 -2.2 2.0 10.0 14.6 16.0 14.8 13.6 7.2 0.0 -3.8 -7.4 DAY 20 8 1 14 6 4 3 30 21 28 26 29 MAXIMUM AIR TEMPERATURE (C) 14.0 16.1 18.3 23.3 29.1 34.7 39.6 36.8 33.5 26.6 16.9 14.3 25.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 14 30 31 31 29 8 0 0 143 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.2 24.6 23.0 28.6 34.0 39.4 42.2 39.4 37.0 32.4 23.0 18.0 42.2 DAY 1 22 2 28 27 18 19 16 5 7 12 10 DIF. BETWEEN (MAX.-MIN.) (C) 13.7 14.0 12.9 13.5 13.4 14.3 15.6 16.2 16.2 13.7 11.0 12.0 13.9 MEAN DAILY TEMP. (MDT) (C) 7.2 9.1 11.8 16.5 22.4 27.6 31.8 28.7 25.4 19.8 11.4 8.3 18.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.4 66.4 196.6 334.4 238.8 131.4 23.8 0.0 0.0 992.8 HEATING DEG. DAYS(BASE 18 0C) 336.3 252.3 190.7 59.5 3.6 0.0 0.0 0.0 0.0 16.7 197.9 300.2 1357.2 DEWPOINT (MEAN C) -7.2 -10.0 -5.1 -2.0 -0.4 2.2 2.8 2.4 -1.4 -0.2 1.0 -2.2 -1.7 MIXING RATIO (G/KG) 2.83 2.43 3.46 4.47 4.57 5.69 5.90 5.77 4.25 4.64 5.00 4.01 4.42 VAPOUR PRESSURE (HPA) 3.79 3.26 4.62 5.97 6.12 7.56 7.82 7.67 5.69 6.24 6.73 5.39 5.91 SATURATION DEF. (HPA) 6.80 9.08 9.62 13.41 22.54 31.55 42.48 34.57 28.88 17.97 7.33 5.92 19.18 RELATIVE HUMIDITY (MEAN %) 41 29 36 35 24 22 17 19 18 29 52 52 31 RELATIVE HUMIDITY (MAX. %) 57 46 59 54 37 33 25 29 27 42 70 74 46 RELATIVE HUMIDITY (MIN. %) 24 15 18 20 14 12 10 12 11 19 35 31 18 RELATIVE HUMIDITY (MEAN% 03UTC) 53 40 52 48 32 29 23 27 25 38 67 68 42 RELATIVE HUMIDITY (MEAN% 09UTC) 32 20 24 24 16 15 13 15 13 22 40 36 23 RELATIVE HUMIDITY (MEAN% 15UTC) 36 25 28 28 19 16 12 15 14 27 46 47 26 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 23.0 4.0 17.6 24.4 0.0 11.0 0.0 0.0 0.0 9.7 10.8 14.8 115.3 DAYS WITH PRECIPITATION >=10 1 0 1 1 0 1 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 2 0 2 1 0 1 0 0 0 1 0 1 8 DAYS WITH PRECIPITATION >= 1 3 3 4 4 0 1 0 0 0 2 5 4 26 DAYS WITH PRECIPITATION 3 3 6 6 1 1 0 0 0 3 5 5 33 GREATEST DAILY PRECIPITATION 15.0 2.0 10.0 17.2 0.0 11.0 0.0 0.0 0.0 8.0 4.4 8.0 17.2 DAY 26 27 5 22 **