STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 M MEANS AND EXTREMES FOR THE YEAR 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.8 4.8 10.3 16.5 22.4 25.1 26.6 27.4 24.1 16.8 7.9 7.6 16.3 MINIMUN AIR TEMPERATURE (C) 2.1 1.2 5.5 11.1 15.5 19.6 21.7 22.4 19.5 12.7 5.3 4.3 11.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 6 19 27 10 0 0 0 63 DAYS WITH MINIMUM TEMP. <=-4 0 2 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH FREEZING MIN.<= 0 9 6 2 0 0 0 0 0 0 0 2 1 20 TEMPERATURE RECORDS LOWEST(C) -2.0 -10.2 -0.4 3.4 6.4 15.0 17.8 18.6 14.2 7.2 -3.8 -0.4 -10.2 DAY 7 17 13 24 9 5 7 23 26 8 30 3 MAXIMUM AIR TEMPERATURE (C) 8.9 8.6 14.6 20.8 26.7 32.1 32.8 33.6 30.3 22.9 11.4 11.7 21.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 3 8 19 28 26 17 1 0 0 102 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.2 18.0 24.8 33.0 33.0 42.0 38.6 38.0 37.2 36.6 24.6 21.0 42.0 DAY 29 27 8 19 26 28 24 11 3 1 9 23 DIF. BETWEEN (MAX.-MIN.) (C) 6.8 7.4 9.1 9.7 11.2 12.5 11.1 11.2 10.8 10.2 6.1 7.4 9.5 MEAN DAILY TEMP. (MDT) (C) 5.5 4.9 10.0 16.0 21.1 25.9 27.3 28.0 24.9 17.8 8.4 8.0 16.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 14.0 48.0 149.4 193.8 216.8 122.1 11.1 0.0 0.0 755.4 HEATING DEG. DAYS(BASE 18 0C) 387.7 366.6 250.3 94.7 19.4 0.0 0.0 0.0 0.0 39.8 289.7 309.6 1757.9 DEWPOINT (MEAN C) ***** 0.5 2.2 8.6 11.6 14.5 17.4 17.3 14.6 4.6 3.8 2.3 ***** MIXING RATIO (G/KG) ****** 4.19 4.81 7.44 9.14 11.20 13.26 13.32 11.36 5.81 5.36 4.77 ****** VAPOUR PRESSURE (HPA) ****** 6.47 7.39 11.37 13.91 16.94 20.02 20.11 17.22 8.97 8.27 7.37 ****** SATURATION DEF. (HPA) ****** 2.49 6.17 8.79 14.28 16.58 15.78 17.34 13.82 10.85 2.77 3.51 ****** RELATIVE HUMIDITY (MEAN %) *** 77 61 65 54 57 60 58 59 49 79 75 *** RELATIVE HUMIDITY (MAX. %) *** 88 75 78 72 79 78 80 78 67 92 89 *** RELATIVE HUMIDITY (MIN. %) *** 66 49 53 39 38 40 36 40 33 64 59 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** 83 68 73 69 68 73 76 72 58 82 76 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** 73 55 60 47 49 47 44 48 39 70 71 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** 78 62 65 51 47 48 43 49 44 80 76 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 27.6 45.4 48.1 39.8 1.6 12.0 28.2 3.0 2.2 8.0 57.8 23.8 297.5 DAYS WITH PRECIPITATION >=10 1 1 2 2 0 0 1 0 0 0 2 0 9 DAYS WITH PRECIPITATION >= 5 3 4 4 3 0 0 2 0 0 1 4 3 24 DAYS WITH PRECIPITATION >= 1 6 8 7 6 1 5 4 1 1 1 12 6 58 DAYS WITH PRECIPITATION 9 15 10 10 4 7 5 3 2 2 14 10 91 GREATEST DAILY PRECIPITATION 10.0 10.0 14.0 15.0 1.0 4.0 21.0 2.0 2.0 8.0 12.1 6.2 21.0 DAY 15 16 9 14 28 2 22 23 25 29 3 8 DAY WITH THUNDER STORM 0 0 0 0 0 0 3 0 1 0 0 0 4 DAYS WITH SNOW OR SLEET 5 5 1 0 0 0 0 0 0 0 4 3 18 DAYS WITH DUST 0 0 0 0 0 0 0 0 1 2 0 0 3 WIND DIRECTION (PREVAILING) 180 135 270 270 225 180 225 180 270 180 225 135 180 PREVAILING WIND SPEED(KNOTS) 7.6 10.8 5.4 3.9 9.4 9.2 8.4 8.6 5.6 8.5 13.3 14.2 9.1 PREVAILING WIND PERCENT 16.8 11.4 16.8 15.3 18.1 23.4 20.2 18.1 15.4 17.7 9.2 18.1 13.9 CALMS PERCENT OF WIND 48.4 54.3 43.9 56.0 48.4 35.1 26.6 40.3 36.7 46.4 69.2 60.1 46.5 NO. OF WIND OBSERVATION 155 140 155 150 155 239 248 248 240 248 240 248 2466 VECTOR WIND DIRECTION (MEAN) 164 185 199 216 224 205 221 215 219 196 210 157 200 VECTOR WIND MAGNITUDE(KNOTS) 3.4 1.9 3.0 1.0 2.8 3.3 3.7 2.6 2.6 2.2 1.8 3.2 2.4 WIND STEADINESES (MEAN %) 77.3 59.4 63.8 45.5 71.8 68.7 69.8 66.7 60.5 59.5 66.7 82.1 61.5 WIND SPEED (MEAN KNOTS) 4.4 3.2 4.7 2.2 3.9 4.8 5.3 3.9 4.3 3.7 2.7 3.9 3.9 FASTEST WIND DIRECTION 140 200 140 150 240 220 180 180 190 190 210 140 140 FASTEST WIND SPEED (KNOTS) 31 19 39 17 23 37 39 19 29 39 29 39 39 DAY 26 28 8 8 8 29 10 2 4 28 14 7 DAYS WITH SKY CLEAR (0-2)/8 11 8 10 5 4 18 16 23 20 22 3 9 149 DAYS WITH P.CLOUDY (3-6)/8 9 5 10 8 20 4 12 6 4 5 11 10 104 DAYS WITH CLOUDY (7-8)/8 11 15 11 17 7 8 3 2 6 4 16 12 112 DAYS WITH VISIBILITY =< 2 KM 2 7 1 4 0 0 0 1 1 1 11 11 39 DURATION OF SUNSHINE HOURS 165.7 123.8 208.0 199.7 254.0 280.8 317.1 311.1 246.2 252.7 108.9 128.1 2596.1 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 ****** 967.9 964.8 961.8 960.8 958.8 959.4 960.0 961.5 969.9 969.1 968.7 ****** MAX. QFE PRESSURE IN HPA ****** 979.6 977.3 970.5 973.1 971.6 965.7 965.7 971.9 977.4 980.0 977.2 ****** DAY-HOUR **-** 9-15 16- 6 23- 6 9- 6 22- 9 27- 6 24- 6 23- 3 20- 6 21- 6 6- 9 MIN. QFE PRESSURE IN HPA ****** 957.2 950.9 949.8 954.1 950.6 951.6 951.1 951.1 954.4 954.2 960.4 ****** DAY-HOUR **-** 21- 3 8- 3 11-15 13- 3 16-15 24-15 12-15 3-15 1-12 10-12 13-12 MEAN QNH PRESSURE IN HPA ****** 1022.1 1018.8 1015.7 1014.7 1012.5 1013.1 1013.8 1015.4 1024.1 1023.3 1022.9 ****** MAX. QNH PRESSURE IN HPA ****** 1034.3 1031.9 1024.8 1027.5 1025.9 1019.8 1019.8 1026.2 1032.0 1034.7 1031.8 ****** DAY-HOUR **-** 9-15 16- 6 23- 6 9- 6 22- 9 27- 6 24- 6 23- 3 20- 6 21- 6 6- 9 MIN. QNH PRESSURE IN HPA ****** 1010.9 1004.3 1003.1 1007.6 1004.0 1005.0 1004.5 1004.5 1007.9 1007.7 1014.2 ****** DAY-HOUR **-** 21- 3 8- 3 11-15 13- 3 16-15 24-15 12-15 3-15 1-12 10-12 13-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1010.0 1010.3 1010.8 1013.1 1023.4 1024.3 1024.0 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1024.7 1016.9 1017.6 1025.0 1031.3 1036.4 1034.0 ****** DAY-HOUR **-** **-** **-** **-** **-** 22- 6 27- 6 24- 6 23- 3 20- 6 21- 6 6- 9 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1000.6 1001.3 1001.2 1001.1 1005.0 1007.3 1014.2 ****** DAY-HOUR **-** **-** **-** **-** **-** 16-15 24-15 12-15 3-15 1-12 10- 9 13-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 958.9 959.5 960.0 961.6 969.5 968.7 968.6 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 969.6 964.7 964.1 971.1 976.3 978.4 973.7 ****** DAY ** ** ** ** ** 23 27 29 23 20 21 20 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 952.1 952.2 952.4 953.4 957.4 955.5 962.2 ****** DAY ** ** ** ** ** 17 25 12 14 1 10 28 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1012.6 1013.3 1013.8 1015.4 1023.7 1022.9 1022.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1023.8 1018.7 1018.1 1025.4 1030.8 1033.0 1028.1 ****** DAY ** ** ** ** ** 23 27 29 23 20 21 20 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1005.5 1005.6 1005.8 1006.9 1011.1 1009.1 1016.1 ****** DAY ** ** ** ** ** 17 25 12 14 1 10 28 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1010.1 1010.3 1010.7 1013.0 1022.7 1023.7 1023.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1022.7 1015.8 1015.6 1023.9 1030.2 1034.8 1030.1 ****** DAY ** ** ** ** ** 23 28 24 23 8 22 9 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1002.0 1001.8 1002.2 1003.9 1008.6 1007.9 1016.2 ****** DAY ** ** ** ** ** 17 25 12 14 1 10 28 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA ****** 967.9 964.5 962.2 960.9 959.3 960.3 960.9 962.4 970.0 969.0 969.0 ****** MAX. QFE PRESSURE IN HPA ****** 977.5 975.8 969.9 972.8 970.7 965.5 965.1 971.9 976.6 979.2 975.1 ****** DAY ** 9 16 24 9 22 27 24 23 20 21 6 MIN. QFE PRESSURE IN HPA ****** 957.2 950.9 955.0 954.1 953.3 953.7 953.2 954.7 957.2 955.4 962.1 ****** DAY ** 21 8 8 13 17 25 12 14 1 10 5 MEAN QNH PRESSURE IN HPA ****** 1022.1 1018.5 1016.1 1014.8 1013.1 1014.1 1014.8 1016.3 1024.2 1023.2 1023.2 ****** MAX. QNH PRESSURE IN HPA ****** 1032.1 1030.3 1024.1 1027.2 1025.0 1019.5 1019.1 1026.2 1031.1 1033.9 1029.6 ****** DAY ** 9 16 24 9 22 27 24 23 20 21 6 MIN. QNH PRESSURE IN HPA ****** 1010.9 1004.3 1008.6 1007.6 1006.8 1007.2 1006.7 1008.3 1010.9 1009.0 1016.0 ****** DAY ** 21 8 8 13 17 25 12 14 1 10 5 MEAN QFF PRESSURE IN HPA ****** 1024.0 1019.3 1015.7 1013.2 1010.6 1011.3 1011.8 1014.1 1023.6 1024.3 1024.4 ****** MAX. QFF PRESSURE IN HPA ****** 1033.4 1032.2 1025.3 1028.0 1023.8 1016.7 1016.9 1025.0 1030.9 1036.0 1031.5 ****** DAY ** 9 16 24 9 22 27 24 23 8 30 6 MIN. QFF PRESSURE IN HPA ****** 1011.7 1003.0 1006.7 1005.2 1002.7 1003.4 1003.4 1005.7 1008.8 1008.4 1017.2 ****** DAY ** 21 8 11 13 28 25 12 14 1 10 18 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 ****** 968.9 965.6 962.9 961.5 959.5 960.4 961.3 962.9 970.9 969.7 969.6 ****** MAX. QFE PRESSURE IN HPA ****** 979.0 977.3 970.5 973.1 971.5 965.7 965.7 971.7 977.4 980.0 976.9 ****** DAY ** 9 16 23 9 22 27 24 23 20 21 6 MIN. QFE PRESSURE IN HPA ****** 957.9 951.8 954.0 955.8 953.6 954.9 953.4 955.2 956.9 955.7 961.7 ****** DAY ** 21 8 8 31 28 24 12 14 1 10 5 MEAN QNH PRESSURE IN HPA ****** 1023.1 1019.6 1016.8 1015.3 1013.3 1014.2 1015.2 1016.9 1025.1 1023.9 1023.8 ****** MAX. QNH PRESSURE IN HPA ****** 1033.7 1031.9 1024.8 1027.5 1025.8 1019.8 1019.8 1026.0 1032.0 1034.7 1031.5 ****** DAY ** 9 16 23 9 22 27 24 23 20 21 6 MIN. QNH PRESSURE IN HPA ****** 1011.6 1005.2 1007.5 1009.4 1007.1 1008.5 1006.9 1008.8 1010.6 1009.3 1015.6 ****** DAY ** 21 8 8 31 28 24 12 14 1 10 5 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1010.8 1011.4 1012.3 1014.6 1024.4 1025.0 1025.0 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1024.7 1016.9 1017.6 1024.7 1031.3 1036.4 1033.7 ****** DAY ** ** ** ** ** 22 27 24 23 20 21 6 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1003.0 1005.0 1003.5 1005.8 1007.6 1009.0 1016.3 ****** DAY ** ** ** ** ** 28 24 12 14 1 10 18 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA ****** 968.1 965.1 962.0 961.0 958.9 959.4 960.3 961.7 970.0 969.0 968.5 ****** MAX. QFE PRESSURE IN HPA ****** 979.5 976.8 970.3 972.7 971.6 965.4 964.7 971.0 975.9 978.5 977.2 ****** DAY ** 9 16 23 9 22 27 24 22 20 21 6 MIN. QFE PRESSURE IN HPA ****** 959.1 952.2 952.7 955.3 953.2 953.7 952.5 953.5 955.6 954.3 960.9 ****** DAY ** 21 8 11 31 28 24 12 3 1 10 5 MEAN QNH PRESSURE IN HPA ****** 1022.3 1019.1 1015.8 1014.9 1012.7 1013.2 1014.1 1015.5 1024.2 1023.2 1022.7 ****** MAX. QNH PRESSURE IN HPA ****** 1034.2 1031.4 1024.6 1027.1 1025.9 1019.4 1018.7 1025.3 1030.4 1033.1 1031.8 ****** DAY ** 9 16 23 9 22 27 24 22 20 21 6 MIN. QNH PRESSURE IN HPA ****** 1012.9 1005.6 1006.2 1008.9 1006.7 1007.2 1006.0 1007.0 1009.2 1007.8 1014.7 ****** DAY ** 21 8 11 31 28 24 12 3 1 10 5 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1010.0 1010.3 1011.1 1013.1 1023.3 1024.1 1023.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1024.7 1016.5 1016.3 1023.7 1030.2 1034.8 1034.0 ****** DAY ** ** ** ** ** 22 27 24 22 7 30 6 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1002.7 1003.6 1002.6 1003.6 1006.2 1007.3 1015.0 ****** DAY ** ** ** ** ** 28 24 12 3 1 10 18 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA ****** 967.1 964.3 960.9 960.3 957.9 958.2 959.0 960.4 968.9 968.7 967.9 ****** MAX. QFE PRESSURE IN HPA ****** 978.9 975.5 969.5 972.4 971.3 964.2 963.4 969.7 974.7 978.7 976.7 ****** DAY ** 9 16 23 9 22 27 24 22 7 21 6 MIN. QFE PRESSURE IN HPA ****** 959.6 954.2 950.9 954.9 951.8 952.0 951.6 951.3 954.4 954.2 960.4 ****** DAY ** 27 3 11 31 16 24 12 3 1 10 13 MEAN QNH PRESSURE IN HPA ****** 1021.3 1018.3 1014.7 1014.1 1011.6 1011.9 1012.8 1014.2 1023.1 1022.9 1022.0 ****** MAX. QNH PRESSURE IN HPA ****** 1033.6 1030.0 1023.7 1026.8 1025.6 1018.2 1017.3 1023.9 1029.2 1033.3 1031.3 ****** DAY ** 9 16 23 9 22 27 24 22 7 21 6 MIN. QNH PRESSURE IN HPA ****** 1013.4 1007.7 1004.3 1008.5 1005.2 1005.4 1005.0 1004.7 1007.9 1007.7 1014.2 ****** DAY ** 27 3 11 31 16 24 12 3 1 10 13 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1008.9 1009.0 1009.8 1011.8 1022.2 1023.8 1023.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1024.4 1015.3 1014.9 1022.4 1029.5 1035.0 1033.5 ****** DAY ** ** ** ** ** 22 27 24 22 7 21 6 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1001.7 1001.8 1001.7 1001.2 1005.0 1007.3 1014.2 ****** DAY ** ** ** ** ** 28 24 12 3 1 10 13 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 ****** 967.7 964.6 961.1 960.4 957.9 958.1 958.8 960.5 969.6 969.4 968.8 ****** MAX. QFE PRESSURE IN HPA ****** 979.6 975.4 969.6 972.1 971.1 964.1 964.2 970.2 975.5 979.0 975.6 ****** DAY ** 9 16 23 9 22 27 28 22 7 21 6 MIN. QFE PRESSURE IN HPA ****** 958.4 953.0 949.8 955.8 950.6 951.6 951.1 951.1 956.3 955.2 961.1 ****** DAY ** 6 5 11 17 16 24 12 3 28 10 13 MEAN QNH PRESSURE IN HPA ****** 1021.8 1018.6 1014.9 1014.3 1011.6 1011.8 1012.6 1014.4 1023.9 1023.6 1023.0 ****** MAX. QNH PRESSURE IN HPA ****** 1034.3 1029.9 1023.8 1026.4 1025.4 1018.1 1018.2 1024.5 1030.0 1033.7 1030.1 ****** DAY ** 9 16 23 9 22 27 28 22 7 21 6 MIN. QNH PRESSURE IN HPA ****** 1012.1 1006.5 1003.1 1009.4 1004.0 1005.0 1004.5 1004.5 1009.9 1008.8 1014.9 ****** DAY ** 6 5 11 17 16 24 12 3 28 10 13 MEAN QFF PRESSURE IN HPA ****** 1023.7 1019.4 1014.4 1012.6 1009.1 1009.0 1009.7 1012.2 1023.3 1024.7 1024.2 ****** MAX. QFF PRESSURE IN HPA ****** 1036.2 1031.8 1024.9 1026.6 1024.2 1015.4 1015.2 1023.2 1030.6 1035.6 1032.5 ****** DAY ** 9 16 23 9 22 27 28 22 7 21 6 MIN. QFF PRESSURE IN HPA ****** 1013.9 1006.7 1000.7 1006.8 1000.6 1001.3 1001.2 1001.1 1007.7 1008.5 1015.1 ****** DAY ** 6 5 11 17 16 24 12 3 1 10 13 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 959.1 959.6 959.9 961.6 970.2 969.5 969.0 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 971.5 965.3 964.1 971.3 975.8 978.9 974.5 ****** DAY ** ** ** ** ** 22 27 28 22 7 21 26 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 951.4 952.0 952.5 951.9 957.7 955.4 961.2 ****** DAY ** ** ** ** ** 16 24 12 3 28 10 13 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1012.8 1013.4 1013.7 1015.4 1024.5 1023.8 1023.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1025.8 1019.3 1018.1 1025.6 1030.3 1033.6 1029.0 ****** DAY ** ** ** ** ** 22 27 28 22 7 21 26 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1004.8 1005.4 1006.0 1005.3 1011.4 1009.0 1015.0 ****** DAY ** ** ** ** ** 16 24 12 3 28 10 13 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1010.4 1010.6 1010.8 1013.1 1024.3 1024.9 1024.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1024.7 1016.6 1015.8 1024.3 1030.9 1035.5 1030.8 ****** DAY ** ** ** ** ** 22 27 23 22 7 21 8 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1001.4 1001.9 1002.5 1002.0 1012.0 1008.7 1015.0 ****** DAY ** ** ** ** ** 16 24 12 3 1 10 13 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 959.0 959.6 959.9 961.4 970.1 969.0 968.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 970.9 965.1 965.6 971.4 975.5 978.8 973.8 ****** DAY ** ** ** ** ** 22 27 28 22 7 21 26 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 951.4 951.9 953.3 952.9 961.2 955.6 962.2 ****** DAY ** ** ** ** ** 16 24 11 3 28 10 27 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1012.7 1013.4 1013.7 1015.3 1024.3 1023.2 1022.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1025.2 1019.1 1019.7 1025.7 1030.0 1033.4 1028.2 ****** DAY ** ** ** ** ** 22 27 28 22 7 21 26 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1004.8 1005.3 1006.8 1006.4 1015.0 1009.2 1016.1 ****** DAY ** ** ** ** ** 16 24 11 3 28 10 27 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1010.2 1010.5 1010.7 1012.9 1023.5 1024.2 1023.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1023.9 1016.3 1016.5 1024.3 1030.4 1035.1 1029.9 ****** DAY ** ** ** ** ** 22 27 28 22 7 21 8 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1001.3 1001.6 1003.3 1002.9 1013.2 1008.7 1015.3 ****** DAY ** ** ** ** ** 16 24 11 3 28 10 27 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 M MEANS AND EXTREMES FOR THE YEAR 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.0 3.7 9.4 15.9 21.5 23.2 25.9 26.4 22.2 17.1 13.8 6.2 16.0 MINIMUN AIR TEMPERATURE (C) 3.8 0.4 6.1 11.6 16.3 18.6 21.1 22.3 18.2 13.5 10.6 3.2 12.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 1 2 3 21 28 1 0 0 0 56 DAYS WITH MINIMUM TEMP. <=-4 0 4 0 0 0 0 0 0 0 0 0 0 4 DAYS WITH FREEZING MIN.<= 0 3 12 0 0 0 0 0 0 0 0 0 9 24 TEMPERATURE RECORDS LOWEST(C) -1.2 -5.0 2.4 1.4 9.6 13.0 18.0 20.4 15.8 7.4 6.4 -3.4 -5.0 DAY 22 10 2 5 7 6 2 9 16 25 12 6 MAXIMUM AIR TEMPERATURE (C) 11.1 8.3 13.4 21.0 27.9 29.4 32.0 32.1 27.6 22.0 18.1 10.1 21.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 4 10 14 26 23 6 0 0 0 83 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.4 19.6 25.4 34.0 35.0 38.2 36.5 37.6 31.6 29.4 26.6 18.2 38.2 DAY 4 27 7 25 27 1 4 10 12 18 22 2 DIF. BETWEEN (MAX.-MIN.) (C) 7.3 7.9 7.3 9.4 11.6 10.8 10.9 9.8 9.4 8.5 7.5 6.9 9.0 MEAN DAILY TEMP. (MDT) (C) 7.4 4.4 9.7 16.3 22.1 24.0 26.5 27.2 22.9 17.7 14.4 6.6 16.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 27.6 63.5 100.4 171.8 191.5 59.4 6.4 0.0 0.0 620.7 HEATING DEG. DAYS(BASE 18 0C) 327.2 381.1 256.1 103.8 8.2 0.0 0.0 0.0 0.0 45.9 118.5 352.7 1593.5 DEWPOINT (MEAN C) 1.2 -1.5 4.5 8.6 12.0 15.8 16.3 18.7 11.8 10.8 8.2 -0.4 8.8 MIXING RATIO (G/KG) 4.44 3.67 5.59 7.64 9.41 12.08 12.36 14.48 9.41 8.62 7.23 4.06 8.25 VAPOUR PRESSURE (HPA) 6.84 5.66 8.59 11.68 14.31 18.25 18.63 21.78 14.38 13.23 11.06 6.26 12.56 SATURATION DEF. (HPA) 3.62 2.70 3.80 7.81 12.54 11.41 15.59 13.34 12.83 6.84 5.24 3.65 8.28 RELATIVE HUMIDITY (MEAN %) 71 73 77 65 59 67 58 66 56 69 72 66 67 RELATIVE HUMIDITY (MAX. %) 87 91 93 84 78 85 76 84 72 83 86 81 83 RELATIVE HUMIDITY (MIN. %) 54 56 61 51 42 52 40 46 39 53 60 52 51 RELATIVE HUMIDITY (MEAN% 03UTC) 70 77 76 73 69 76 72 79 65 75 75 71 73 RELATIVE HUMIDITY (MEAN% 09UTC) 68 65 71 57 48 57 46 53 44 60 68 60 58 RELATIVE HUMIDITY (MEAN% 15UTC) 74 76 79 63 51 58 46 54 49 69 72 69 63 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 54.0 65.3 63.9 12.8 6.5 10.9 0.0 2.3 85.6 42.8 50.0 40.0 434.1 DAYS WITH PRECIPITATION >=10 2 2 2 0 0 0 0 0 2 0 1 2 11 DAYS WITH PRECIPITATION >= 5 3 5 4 1 1 1 0 0 2 4 5 3 29 DAYS WITH PRECIPITATION >= 1 9 10 11 3 2 4 0 1 4 11 8 7 70 DAYS WITH PRECIPITATION 12 14 18 6 5 5 0 4 4 12 9 8 97 GREATEST DAILY PRECIPITATION 15.0 22.0 16.0 6.0 5.0 6.3 0.0 1.0 62.6 9.0 19.0 13.5 62.6 DAY 17 9 27 3 6 5 ** 26 14 15 9 4 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 1 0 0 1 DAYS WITH SNOW OR SLEET 2 7 0 0 0 0 0 0 0 0 0 4 13 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 135 270 135 180 180 180 180 180 180 180 135 135 180 PREVAILING WIND SPEED(KNOTS) 14.7 4.8 13.2 10.2 11.3 10.5 11.2 7.6 7.8 7.7 13.2 10.7 9.5 PREVAILING WIND PERCENT 16.9 10.3 10.1 11.7 15.7 15.8 23.0 20.2 21.7 13.3 15.9 21.0 13.1 CALMS PERCENT OF WIND 55.6 64.3 60.9 52.5 39.1 39.2 29.8 39.1 33.3 56.5 61.9 55.6 48.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 239 248 2919 VECTOR WIND DIRECTION (MEAN) 175 187 183 198 207 214 213 217 190 183 165 164 193 VECTOR WIND MAGNITUDE(KNOTS) 3.2 1.8 2.7 1.9 3.1 3.2 4.7 2.5 2.6 1.6 2.5 2.7 2.6 WIND STEADINESES (MEAN %) 72.7 60.0 71.1 57.6 70.5 66.7 78.3 67.6 59.1 64.0 71.4 71.1 65.0 WIND SPEED (MEAN KNOTS) 4.4 3.0 3.8 3.3 4.4 4.8 6.0 3.7 4.4 2.5 3.5 3.8 4.0 FASTEST WIND DIRECTION 150 150 150 190 180 180 200 210 210 140 140 150 150 FASTEST WIND SPEED (KNOTS) 39 39 39 23 39 31 25 23 19 19 35 27 39 DAY 4 1 6 25 4 23 9 17 13 18 20 3 DAYS WITH SKY CLEAR (0-2)/8 11 7 5 10 15 13 20 12 22 15 14 14 158 DAYS WITH P.CLOUDY (3-6)/8 8 5 5 9 10 4 7 14 6 10 4 6 88 DAYS WITH CLOUDY (7-8)/8 12 16 21 11 6 13 4 5 2 6 12 11 119 DAYS WITH VISIBILITY =< 2 KM 5 7 17 2 0 0 0 1 1 1 7 6 47 DURATION OF SUNSHINE HOURS 138.5 135.1 118.4 232.2 283.2 218.1 290.3 253.5 301.2 222.3 163.5 152.9 2509.2 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 965.7 966.3 964.6 963.7 961.2 958.3 956.7 958.0 966.1 968.1 963.2 967.4 963.3 MAX. QFE PRESSURE IN HPA 979.5 981.4 975.6 980.2 970.6 963.4 962.3 963.4 971.6 976.2 972.9 979.6 981.4 DAY-HOUR 9-15 18- 6 1- 6 5- 6 18- 6 21- 6 2- 3 15- 6 23- 6 23-18 2- 6 21-18 MIN. QFE PRESSURE IN HPA 950.7 946.4 948.3 951.4 951.4 949.9 950.0 950.5 960.2 958.4 950.7 947.6 946.4 DAY-HOUR 16-12 1- 9 7-15 30-21 1- 0 15-21 20-15 10-15 2-12 14-12 26- 3 3-18 MEAN QNH PRESSURE IN HPA 1019.8 1020.4 1018.6 1017.7 1015.1 1012.0 1010.4 1011.7 1020.2 1022.3 1017.1 1021.5 1017.2 MAX. QNH PRESSURE IN HPA 1034.2 1036.2 1030.1 1034.9 1024.9 1017.3 1016.2 1017.3 1025.9 1030.7 1027.3 1034.3 1036.2 DAY-HOUR 9-15 18- 6 1- 6 5- 6 18- 6 21- 6 2- 3 15- 6 23- 6 23-18 2- 6 21-18 MIN. QNH PRESSURE IN HPA 1004.1 999.6 1001.6 1004.8 1004.8 1003.2 1003.3 1003.9 1014.0 1012.1 1004.1 1000.8 999.6 DAY-HOUR 16-12 1- 9 7-15 30-21 1- 0 15-21 20-15 10-15 2-12 14-12 26- 3 3-18 MEAN QFF PRESSURE IN HPA 1021.0 1022.3 1019.3 1017.0 1013.3 1009.8 1007.7 1008.9 1018.3 1021.4 1016.8 1022.9 1016.6 MAX. QFF PRESSURE IN HPA 1036.0 1038.8 1032.0 1036.7 1024.6 1015.9 1014.2 1015.0 1023.8 1031.1 1026.6 1036.9 1038.8 DAY-HOUR 9-15 18- 6 1- 6 5- 6 18-18 5-18 2- 3 8- 3 23- 6 24- 6 2- 6 21-18 MIN. QFF PRESSURE IN HPA 1004.8 998.7 999.7 1002.9 1003.1 1000.0 1000.2 1000.5 1011.6 1010.6 1003.8 1000.4 998.7 DAY-HOUR 16-12 1- 9 7-15 30-15 1- 0 15-21 30-15 10-15 2-12 14-12 26- 3 3-18 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 965.6 965.8 963.9 963.5 960.8 958.4 957.2 958.3 965.7 967.8 963.0 967.2 963.1 MAX. QFE PRESSURE IN HPA 976.1 980.2 974.2 978.3 969.3 962.7 961.9 962.9 970.0 975.7 970.9 978.7 980.2 DAY 10 18 1 5 19 21 2 8 23 24 2 22 MIN. QFE PRESSURE IN HPA 954.7 952.0 953.7 955.1 951.4 951.1 951.0 952.0 961.4 959.0 951.6 948.0 948.0 DAY 16 1 7 24 1 16 20 11 8 15 26 4 MEAN QNH PRESSURE IN HPA 1019.7 1019.9 1017.9 1017.5 1014.7 1012.2 1010.9 1012.0 1019.8 1022.0 1017.0 1021.3 1017.1 MAX. QNH PRESSURE IN HPA 1030.6 1034.9 1028.6 1032.9 1023.5 1016.6 1015.8 1016.8 1024.2 1030.2 1025.2 1033.3 1034.9 DAY 10 18 1 5 19 21 2 8 23 24 2 22 MIN. QNH PRESSURE IN HPA 1008.3 1005.4 1007.2 1008.7 1004.8 1004.5 1004.4 1005.4 1015.3 1012.8 1005.0 1001.3 1001.3 DAY 16 1 7 24 1 16 20 11 8 15 26 4 MEAN QFF PRESSURE IN HPA 1020.8 1021.6 1018.5 1016.8 1012.8 1009.9 1008.1 1009.0 1017.8 1020.9 1016.6 1022.6 1016.3 MAX. QFF PRESSURE IN HPA 1032.7 1037.5 1030.4 1034.7 1023.0 1014.4 1014.0 1014.3 1021.9 1030.6 1025.1 1036.3 1037.5 DAY 10 18 1 5 19 21 2 8 24 24 10 22 MIN. QFF PRESSURE IN HPA 1007.7 1004.3 1005.8 1005.9 1003.1 1001.5 1001.3 1001.9 1013.1 1010.9 1005.2 1001.2 1001.2 DAY 30 1 7 24 1 16 20 11 27 15 26 4 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 966.0 966.2 964.5 964.2 961.5 959.0 957.9 959.0 966.5 968.2 963.2 967.6 963.6 MAX. QFE PRESSURE IN HPA 976.1 980.7 974.2 979.5 969.8 963.3 962.3 963.3 970.8 975.7 971.7 978.7 980.7 DAY 9 18 1 5 18 21 2 8 23 24 2 22 MIN. QFE PRESSURE IN HPA 954.9 948.9 953.5 955.8 953.1 952.6 951.9 953.9 962.0 960.5 950.7 948.6 948.6 DAY 16 1 7 24 1 16 20 11 28 19 26 4 MEAN QNH PRESSURE IN HPA 1020.0 1020.3 1018.5 1018.2 1015.3 1012.8 1011.6 1012.8 1020.6 1022.4 1017.1 1021.7 1017.6 MAX. QNH PRESSURE IN HPA 1030.6 1035.4 1028.6 1034.2 1024.0 1017.2 1016.2 1017.2 1025.1 1030.2 1026.0 1033.3 1035.4 DAY 9 18 1 5 18 21 2 8 23 24 2 22 MIN. QNH PRESSURE IN HPA 1008.5 1002.2 1007.0 1009.4 1006.6 1006.1 1005.3 1007.4 1015.9 1014.3 1004.1 1001.9 1001.9 DAY 16 1 7 24 1 16 20 11 28 19 26 4 MEAN QFF PRESSURE IN HPA 1021.4 1022.3 1019.2 1017.8 1013.6 1010.6 1008.9 1010.0 1018.8 1021.7 1017.0 1023.3 1017.0 MAX. QFF PRESSURE IN HPA 1032.3 1038.1 1030.4 1036.0 1023.7 1015.5 1014.2 1015.0 1022.9 1030.8 1025.5 1036.6 1038.1 DAY 9 18 1 5 18 4 2 8 23 24 2 22 MIN. QFF PRESSURE IN HPA 1008.2 1001.2 1005.8 1007.2 1004.2 1002.9 1002.1 1004.0 1013.9 1012.6 1003.8 1002.1 1001.2 DAY 30 1 7 24 13 16 20 11 28 19 26 4 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 966.8 966.9 965.5 964.7 962.0 959.0 957.7 959.3 967.1 969.0 964.2 968.3 964.2 MAX. QFE PRESSURE IN HPA 977.9 981.4 975.6 980.2 970.6 963.4 961.8 963.4 971.6 976.2 972.9 978.5 981.4 DAY 9 18 1 5 18 21 1 15 23 24 2 22 MIN. QFE PRESSURE IN HPA 953.7 950.1 953.2 956.3 954.9 953.3 952.6 954.3 963.0 961.1 953.7 953.3 950.1 DAY 16 1 7 24 1 16 20 1 1 19 26 4 MEAN QNH PRESSURE IN HPA 1020.9 1021.0 1019.5 1018.7 1015.9 1012.7 1011.4 1013.1 1021.2 1023.2 1018.1 1022.4 1018.2 MAX. QNH PRESSURE IN HPA 1032.5 1036.2 1030.1 1034.9 1024.9 1017.3 1015.7 1017.3 1025.9 1030.7 1027.3 1033.1 1036.2 DAY 9 18 1 5 18 21 1 15 23 24 2 22 MIN. QNH PRESSURE IN HPA 1007.2 1003.4 1006.7 1009.9 1008.5 1006.8 1006.1 1007.8 1016.9 1014.9 1007.2 1006.8 1003.4 DAY 16 1 7 24 1 16 20 1 1 19 26 4 MEAN QFF PRESSURE IN HPA 1022.2 1023.0 1020.2 1018.1 1014.2 1010.6 1008.7 1010.3 1019.4 1022.4 1017.9 1023.9 1017.6 MAX. QFF PRESSURE IN HPA 1034.1 1038.8 1032.0 1036.7 1024.4 1015.6 1013.9 1014.4 1023.8 1031.1 1026.6 1036.2 1038.8 DAY 9 18 1 5 18 21 1 8 23 24 2 22 MIN. QFF PRESSURE IN HPA 1009.0 1002.9 1005.2 1007.1 1007.5 1003.8 1003.0 1004.8 1014.6 1012.7 1006.9 1006.8 1002.9 DAY 16 1 7 24 1 16 20 11 1 19 26 4 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 965.9 965.9 965.0 963.9 961.4 958.2 956.7 958.1 966.3 968.1 963.1 967.2 963.3 MAX. QFE PRESSURE IN HPA 978.3 980.5 973.8 979.0 970.3 962.6 961.0 962.0 970.6 975.5 971.7 977.4 980.5 DAY 9 18 1 5 18 19 1 15 23 24 2 22 MIN. QFE PRESSURE IN HPA 952.3 946.4 951.2 954.9 954.6 951.5 951.7 952.9 961.7 959.4 954.5 952.7 946.4 DAY 16 1 7 30 1 15 20 1 1 14 26 4 MEAN QNH PRESSURE IN HPA 1020.0 1020.0 1019.1 1017.8 1015.3 1011.9 1010.3 1011.8 1020.4 1022.3 1017.0 1021.3 1017.3 MAX. QNH PRESSURE IN HPA 1032.9 1035.2 1028.2 1033.7 1024.6 1016.5 1014.8 1015.9 1024.9 1030.0 1026.0 1032.0 1035.2 DAY 9 18 1 5 18 19 1 15 23 24 2 22 MIN. QNH PRESSURE IN HPA 1005.7 999.6 1004.6 1008.5 1008.2 1004.9 1005.1 1006.4 1015.6 1013.2 1008.0 1006.2 999.6 DAY 16 1 7 30 1 15 20 1 1 14 26 4 MEAN QFF PRESSURE IN HPA 1021.1 1021.7 1019.7 1017.1 1013.4 1009.6 1007.6 1008.9 1018.4 1021.2 1016.6 1022.6 1016.5 MAX. QFF PRESSURE IN HPA 1034.7 1037.7 1030.1 1035.2 1024.0 1014.9 1013.0 1013.3 1022.4 1030.5 1025.2 1034.8 1037.7 DAY 9 18 1 5 18 19 1 6 23 24 2 7 MIN. QFF PRESSURE IN HPA 1006.9 998.7 1002.8 1006.6 1006.7 1001.8 1002.1 1003.4 1013.1 1011.8 1008.5 1007.0 998.7 DAY 16 1 7 30 28 15 20 1 1 14 26 4 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 965.0 965.3 964.3 962.9 960.4 957.3 955.5 956.7 965.3 967.4 962.3 966.3 962.4 MAX. QFE PRESSURE IN HPA 978.9 979.6 972.2 977.1 969.7 961.2 960.8 961.4 969.3 975.2 969.9 976.5 979.6 DAY 9 18 31 5 18 19 1 6 23 24 2 7 MIN. QFE PRESSURE IN HPA 950.7 950.3 949.3 953.0 953.3 951.1 950.2 950.7 960.2 958.4 954.6 951.7 949.3 DAY 16 1 7 30 2 15 20 10 2 14 17 3 MEAN QNH PRESSURE IN HPA 1019.0 1019.4 1018.3 1016.8 1014.3 1011.0 1009.1 1010.3 1019.3 1021.5 1016.2 1020.4 1016.3 MAX. QNH PRESSURE IN HPA 1033.6 1034.3 1026.5 1031.7 1023.9 1015.0 1014.6 1015.3 1023.5 1029.7 1024.1 1031.0 1034.3 DAY 9 18 31 5 18 19 1 6 23 24 2 7 MIN. QNH PRESSURE IN HPA 1004.1 1003.7 1002.6 1006.5 1006.8 1004.5 1003.5 1004.1 1014.0 1012.1 1008.2 1005.1 1002.6 DAY 16 1 7 30 2 15 20 10 2 14 17 3 MEAN QFF PRESSURE IN HPA 1020.1 1021.1 1018.9 1016.0 1012.4 1008.8 1006.3 1007.3 1017.3 1020.5 1015.8 1021.7 1015.5 MAX. QFF PRESSURE IN HPA 1035.4 1036.9 1028.0 1033.0 1023.4 1013.4 1012.8 1013.1 1021.8 1030.3 1024.2 1033.9 1036.9 DAY 9 18 1 5 18 4 1 6 14 24 9 7 MIN. QFF PRESSURE IN HPA 1004.8 1003.3 1000.8 1004.4 1005.5 1001.6 1000.5 1000.9 1011.6 1010.6 1008.4 1004.8 1000.5 DAY 16 1 7 30 2 15 20 10 2 14 17 3 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 965.7 966.5 964.5 963.2 960.5 957.4 955.3 956.7 965.7 968.1 963.4 967.5 962.9 MAX. QFE PRESSURE IN HPA 979.5 981.0 972.0 975.9 969.5 961.4 960.5 961.4 969.9 975.7 971.5 978.7 981.0 DAY 9 18 31 4 18 5 1 6 23 23 9 21 MIN. QFE PRESSURE IN HPA 953.8 954.9 948.3 951.6 953.6 950.0 950.0 950.5 960.9 959.4 955.9 949.1 948.3 DAY 16 1 7 30 13 15 20 10 7 14 26 3 MEAN QNH PRESSURE IN HPA 1019.8 1020.6 1018.5 1017.1 1014.4 1011.1 1008.9 1010.4 1019.7 1022.3 1017.3 1021.7 1016.8 MAX. QNH PRESSURE IN HPA 1034.2 1035.8 1026.3 1030.4 1023.7 1015.3 1014.3 1015.3 1024.1 1030.2 1025.8 1033.3 1035.8 DAY 9 18 31 4 18 5 1 6 23 23 9 21 MIN. QNH PRESSURE IN HPA 1007.3 1008.5 1001.6 1005.0 1007.1 1003.3 1003.3 1003.9 1014.7 1013.2 1009.5 1002.4 1001.6 DAY 16 1 7 30 13 15 20 10 7 14 26 3 MEAN QFF PRESSURE IN HPA 1021.1 1022.6 1019.1 1016.6 1012.6 1008.9 1006.2 1007.5 1018.0 1021.6 1016.9 1023.2 1016.2 MAX. QFF PRESSURE IN HPA 1036.0 1038.5 1027.6 1032.1 1023.2 1014.8 1012.5 1013.1 1021.8 1030.6 1025.0 1035.8 1038.5 DAY 9 18 31 4 18 5 1 6 23 23 6 21 MIN. QFF PRESSURE IN HPA 1008.1 1008.1 999.7 1002.9 1004.6 1000.3 1000.2 1000.5 1012.7 1012.2 1009.4 1002.5 999.7 DAY 16 1 7 30 13 15 30 10 2 14 25 3 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 965.7 967.0 965.0 963.9 961.9 958.7 956.8 958.1 966.5 968.5 963.5 967.8 963.6 MAX. QFE PRESSURE IN HPA 979.3 980.7 972.9 978.3 970.6 962.5 961.7 962.7 970.4 976.2 971.0 979.6 980.7 DAY 9 18 31 4 18 20 13 7 22 23 9 21 MIN. QFE PRESSURE IN HPA 954.1 956.1 956.9 955.6 954.8 950.9 950.9 950.8 961.5 959.5 953.4 947.6 947.6 DAY 16 1 6 1 12 15 30 10 7 14 25 3 MEAN QNH PRESSURE IN HPA 1019.8 1021.1 1019.0 1017.9 1015.8 1012.5 1010.5 1011.8 1020.6 1022.7 1017.5 1022.0 1017.6 MAX. QNH PRESSURE IN HPA 1034.0 1035.4 1027.3 1032.9 1024.9 1016.4 1015.6 1016.6 1024.7 1030.7 1025.3 1034.3 1035.4 DAY 9 18 31 4 18 20 13 7 22 23 9 21 MIN. QNH PRESSURE IN HPA 1007.6 1009.7 1010.6 1009.2 1008.4 1004.3 1004.3 1004.2 1015.4 1013.3 1006.9 1000.8 1000.8 DAY 16 1 6 1 12 15 30 10 7 14 25 3 MEAN QFF PRESSURE IN HPA 1021.1 1023.1 1019.7 1017.3 1014.1 1010.3 1007.8 1009.0 1018.7 1021.8 1017.2 1023.4 1017.0 MAX. QFF PRESSURE IN HPA 1035.8 1038.3 1028.2 1034.8 1024.6 1015.9 1013.4 1014.3 1022.5 1030.9 1026.0 1036.9 1038.3 DAY 9 18 31 4 18 5 1 7 22 23 9 21 MIN. QFF PRESSURE IN HPA 1009.3 1009.9 1009.5 1006.7 1006.1 1001.3 1001.1 1000.7 1013.6 1011.9 1006.1 1000.4 1000.4 DAY 16 1 6 24 12 15 30 10 7 14 25 3 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 965.2 966.9 964.3 963.6 961.5 958.5 956.9 958.2 966.1 968.2 963.1 967.5 963.3 MAX. QFE PRESSURE IN HPA 977.8 980.6 971.5 978.3 969.6 962.7 961.7 962.9 970.4 975.7 971.0 979.4 980.6 DAY 9 17 31 4 18 20 1 7 22 23 9 21 MIN. QFE PRESSURE IN HPA 954.4 955.4 955.4 951.4 953.4 949.9 950.8 951.1 961.1 958.9 953.4 947.8 947.8 DAY 31 11 6 30 12 15 19 10 7 14 25 3 MEAN QNH PRESSURE IN HPA 1019.2 1021.0 1018.3 1017.5 1015.3 1012.3 1010.6 1012.0 1020.2 1022.3 1017.0 1021.6 1017.3 MAX. QNH PRESSURE IN HPA 1032.4 1035.3 1025.8 1032.9 1023.8 1016.6 1015.6 1016.8 1024.7 1030.2 1025.3 1034.1 1035.3 DAY 9 17 31 4 18 20 1 7 22 23 9 21 MIN. QNH PRESSURE IN HPA 1007.9 1009.0 1009.0 1004.8 1006.9 1003.2 1004.2 1004.5 1014.9 1012.6 1006.9 1001.0 1001.0 DAY 31 11 6 30 12 15 19 10 7 14 25 3 MEAN QFF PRESSURE IN HPA 1020.3 1022.8 1018.9 1016.8 1013.5 1010.0 1007.9 1009.1 1018.2 1021.4 1016.6 1022.9 1016.5 MAX. QFF PRESSURE IN HPA 1034.4 1037.7 1026.9 1034.8 1023.5 1014.9 1013.6 1014.3 1022.3 1030.3 1025.9 1036.7 1037.7 DAY 9 17 31 4 18 5 1 7 22 24 9 21 MIN. QFF PRESSURE IN HPA 1007.0 1010.4 1007.6 1003.0 1004.2 1000.0 1001.3 1001.0 1012.9 1010.9 1006.8 1001.1 1000.0 DAY 31 11 6 30 12 15 19 10 7 14 25 3 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 M MEANS AND EXTREMES FOR THE YEAR 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.5 7.5 11.0 16.6 22.4 25.8 27.2 28.1 24.3 16.5 15.6 7.7 17.6 MINIMUN AIR TEMPERATURE (C) 5.2 4.4 7.1 12.9 16.7 19.9 22.7 23.4 20.2 12.8 11.1 4.5 13.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 1 1 9 28 30 19 1 0 0 89 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 0 0 0 0 0 0 0 0 0 0 2 3 TEMPERATURE RECORDS LOWEST(C) -0.6 0.4 3.2 7.0 13.4 14.6 20.0 20.8 11.6 3.6 2.2 -2.0 -2.0 DAY 25 24 3 7 26 24 6 21 22 18 26 18 MAXIMUM AIR TEMPERATURE (C) 12.8 12.4 15.9 21.2 28.6 31.9 33.0 34.2 29.7 21.8 21.5 11.9 22.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 4 11 21 28 29 18 2 1 0 114 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.0 22.6 28.5 32.6 35.0 41.6 38.2 43.6 36.6 32.6 30.8 19.8 43.6 DAY 16 8 25 11 21 29 26 12 9 3 8 29 DIF. BETWEEN (MAX.-MIN.) (C) 7.6 8.0 8.8 8.3 11.9 12.0 10.3 10.8 9.5 9.0 10.4 7.4 9.5 MEAN DAILY TEMP. (MDT) (C) 9.0 8.4 11.5 17.0 22.6 25.9 27.8 28.8 25.0 17.3 16.3 8.2 18.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.4 17.5 58.0 152.2 211.2 242.5 139.4 11.1 8.4 0.0 840.8 HEATING DEG. DAYS(BASE 18 0C) 279.2 269.0 204.7 78.7 0.0 0.0 0.0 0.0 3.7 61.2 91.4 303.7 1291.6 DEWPOINT (MEAN C) 1.2 2.1 3.6 7.9 9.7 12.6 17.6 18.8 13.3 7.1 7.4 0.3 8.5 MIXING RATIO (G/KG) 4.37 4.70 5.35 7.29 8.14 9.86 13.53 14.58 10.51 6.91 6.96 4.16 8.03 VAPOUR PRESSURE (HPA) 6.75 7.24 8.21 11.12 12.42 14.93 20.33 21.92 15.94 10.61 10.65 6.43 12.21 SATURATION DEF. (HPA) 4.83 3.39 5.60 8.87 15.49 19.72 16.48 16.87 15.86 8.91 8.35 4.44 10.73 RELATIVE HUMIDITY (MEAN %) 65 72 65 64 48 48 58 60 55 58 61 64 60 RELATIVE HUMIDITY (MAX. %) 78 86 81 78 69 65 76 79 72 73 77 77 76 RELATIVE HUMIDITY (MIN. %) 51 58 49 52 34 31 41 40 40 42 47 51 45 RELATIVE HUMIDITY (MEAN% 03UTC) 66 76 70 68 59 58 73 74 66 65 67 65 67 RELATIVE HUMIDITY (MEAN% 09UTC) 63 64 59 59 39 38 48 49 47 49 54 59 52 RELATIVE HUMIDITY (MEAN% 15UTC) 67 73 65 63 43 40 45 47 50 56 62 66 56 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 29.9 23.3 38.5 37.0 0.1 39.0 8.5 18.2 40.3 34.2 44.5 20.2 333.7 DAYS WITH PRECIPITATION >=10 0 1 1 1 0 1 0 1 1 2 2 0 10 DAYS WITH PRECIPITATION >= 5 1 1 2 4 0 1 1 1 3 3 2 1 20 DAYS WITH PRECIPITATION >= 1 7 4 8 6 0 1 2 1 4 5 3 6 47 DAYS WITH PRECIPITATION 12 10 10 9 1 2 3 2 5 6 3 11 74 GREATEST DAILY PRECIPITATION 8.0 11.0 19.0 11.6 0.1 38.9 7.4 18.0 21.0 12.0 27.8 7.4 38.9 DAY 6 24 18 16 1 23 6 14 21 13 26 7 DAY WITH THUNDER STORM 0 0 1 0 0 2 0 0 0 0 0 0 3 DAYS WITH SNOW OR SLEET 2 1 0 0 0 0 0 0 0 0 0 2 5 DAYS WITH DUST 0 0 0 0 0 1 0 0 0 1 1 0 3 WIND DIRECTION (PREVAILING) 135 135 135 180 180 180 180 225 270 135 135 135 135 PREVAILING WIND SPEED(KNOTS) 13.4 6.7 7.3 9.1 8.3 11.1 8.4 7.6 4.1 4.6 7.8 14.6 8.9 PREVAILING WIND PERCENT 20.6 14.7 16.5 17.1 19.4 20.0 23.8 17.7 15.4 19.0 26.3 32.3 15.8 CALMS PERCENT OF WIND 51.6 47.3 46.8 44.2 31.5 25.8 31.0 32.7 37.1 37.5 42.1 51.6 39.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 164 188 179 178 201 213 217 215 194 200 174 150 188 VECTOR WIND MAGNITUDE(KNOTS) 4.0 2.2 1.9 2.8 2.4 4.2 3.5 3.0 1.8 2.2 3.2 4.9 2.8 WIND STEADINESES (MEAN %) 81.6 66.7 63.3 73.7 52.2 70.0 74.5 71.4 52.9 62.9 74.4 89.1 65.1 WIND SPEED (MEAN KNOTS) 4.9 3.3 3.0 3.8 4.6 6.0 4.7 4.2 3.4 3.5 4.3 5.5 4.3 FASTEST WIND DIRECTION 150 180 150 140 150 200 210 190 120 200 220 150 180 FASTEST WIND SPEED (KNOTS) 35 43 31 25 25 39 29 23 19 35 35 33 43 DAY 16 8 25 19 2 16 23 23 5 4 24 28 DAYS WITH SKY CLEAR (0-2)/8 14 12 15 6 16 16 19 17 18 18 23 14 188 DAYS WITH P.CLOUDY (3-6)/8 5 6 9 7 8 10 9 11 9 10 4 8 96 DAYS WITH CLOUDY (7-8)/8 12 10 7 17 7 4 3 3 3 3 3 9 81 DAYS WITH VISIBILITY =< 2 KM 4 4 6 7 0 0 0 0 0 1 1 3 26 DURATION OF SUNSHINE HOURS 151.9 179.4 237.8 155.7 312.1 301.5 309.0 280.7 259.2 268.1 237.3 181.5 2874.2 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 966.9 966.4 964.2 960.9 962.9 957.9 955.4 957.4 960.3 967.2 963.8 968.5 962.7 MAX. QFE PRESSURE IN HPA 980.8 975.8 976.3 972.6 971.2 964.7 960.9 963.9 970.9 981.6 976.6 980.2 981.6 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 6 23- 6 24- 6 27- 6 17-15 15-15 10- 6 MIN. QFE PRESSURE IN HPA 953.8 951.2 947.8 951.2 954.7 944.5 948.1 950.5 953.2 955.0 952.5 958.4 944.5 DAY-HOUR 17- 3 8-15 25-18 19-18 2- 9 30- 0 15-18 22-15 20- 6 4- 3 24-12 22- 0 MEAN QNH PRESSURE IN HPA 1021.0 1020.5 1018.2 1014.7 1016.8 1011.6 1009.0 1011.1 1014.2 1021.3 1017.8 1022.7 1016.6 MAX. QNH PRESSURE IN HPA 1035.5 1030.3 1030.8 1027.0 1025.5 1018.7 1014.7 1017.9 1025.2 1036.4 1031.1 1034.9 1036.4 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 6 23- 6 24- 6 27- 6 17-15 15-15 10- 6 MIN. QNH PRESSURE IN HPA 1007.3 1004.6 1001.0 1004.6 1008.3 997.6 1001.4 1003.9 1006.7 1008.6 1006.0 1012.1 997.6 DAY-HOUR 17- 3 8-15 25-18 19-18 2- 9 30- 0 15-18 22-15 20- 6 4- 3 24-12 22- 0 MEAN QFF PRESSURE IN HPA 1021.9 1021.5 1018.6 1013.9 1014.9 1009.0 1006.0 1007.9 1011.8 1020.7 1017.2 1023.7 1015.6 MAX. QFF PRESSURE IN HPA 1037.3 1031.7 1032.2 1027.8 1024.1 1016.6 1012.2 1015.4 1024.6 1037.9 1031.9 1037.6 1037.9 DAY-HOUR 7- 6 12- 6 3- 6 7- 6 26- 6 1- 6 23- 6 24- 6 22- 3 17-18 15-15 10- 6 MIN. QFF PRESSURE IN HPA 1006.8 1003.8 999.3 1001.8 1006.0 992.9 997.7 1000.5 1003.9 1005.7 1004.0 1012.3 992.9 DAY-HOUR 17- 3 8-15 25-18 19-21 2- 9 30- 0 15-18 12-12 20- 6 4- 0 24-12 22- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 966.5 966.2 963.7 960.3 962.8 958.1 955.5 957.4 960.2 966.5 963.7 968.5 962.4 MAX. QFE PRESSURE IN HPA 979.1 972.5 974.7 971.1 969.5 964.5 959.5 963.3 970.8 979.0 974.4 978.2 979.1 DAY 7 13 3 7 26 1 8 20 22 18 16 10 MIN. QFE PRESSURE IN HPA 955.3 956.8 950.1 951.9 956.9 944.5 948.1 951.9 954.1 955.2 954.9 958.4 944.5 DAY 17 9 26 20 2 30 16 8 5 4 26 22 MEAN QNH PRESSURE IN HPA 1020.6 1020.3 1017.6 1014.1 1016.7 1011.9 1009.1 1011.0 1014.0 1020.6 1017.7 1022.7 1016.4 MAX. QNH PRESSURE IN HPA 1033.8 1026.9 1029.2 1025.4 1023.7 1018.5 1013.3 1017.2 1025.1 1033.7 1028.9 1032.8 1033.8 DAY 7 13 3 7 26 1 8 20 22 18 16 10 MIN. QNH PRESSURE IN HPA 1008.9 1010.5 1003.4 1005.3 1010.6 997.6 1001.4 1005.3 1007.6 1008.8 1008.5 1012.1 997.6 DAY 17 9 26 20 2 30 16 8 5 4 26 22 MEAN QFF PRESSURE IN HPA 1021.4 1021.3 1017.9 1013.2 1014.8 1009.3 1006.0 1007.8 1011.5 1019.9 1016.9 1023.6 1015.3 MAX. QFF PRESSURE IN HPA 1035.4 1028.4 1030.8 1026.3 1022.3 1016.6 1010.5 1014.6 1024.6 1035.0 1029.6 1035.2 1035.4 DAY 7 13 3 7 26 1 8 20 22 18 28 10 MIN. QFF PRESSURE IN HPA 1007.9 1009.8 1001.7 1002.8 1008.6 992.9 997.7 1001.6 1004.5 1005.7 1008.0 1012.3 992.9 DAY 17 9 26 20 2 30 16 8 5 4 24 22 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 966.8 966.5 964.2 961.0 963.5 958.8 956.5 958.5 960.9 967.0 964.2 968.8 963.0 MAX. QFE PRESSURE IN HPA 980.3 974.4 975.2 972.1 970.9 964.5 960.5 963.5 970.6 978.7 974.1 979.1 980.3 DAY 7 12 3 7 26 1 8 20 22 25 15 10 MIN. QFE PRESSURE IN HPA 953.8 957.0 953.2 953.2 956.1 946.6 949.5 952.3 954.8 955.0 955.7 958.9 946.6 DAY 17 9 26 19 2 30 16 12 5 4 24 22 MEAN QNH PRESSURE IN HPA 1020.9 1020.6 1018.2 1014.8 1017.5 1012.5 1010.1 1012.2 1014.8 1021.1 1018.1 1022.9 1017.0 MAX. QNH PRESSURE IN HPA 1035.0 1028.9 1029.7 1026.4 1025.2 1018.5 1014.3 1017.5 1024.9 1033.3 1028.5 1033.8 1035.0 DAY 7 12 3 7 26 1 8 20 22 25 15 10 MIN. QNH PRESSURE IN HPA 1007.3 1010.7 1006.7 1006.7 1009.7 999.8 1002.8 1005.7 1008.4 1008.6 1009.3 1012.6 999.8 DAY 17 9 26 19 2 30 16 12 5 4 24 22 MEAN QFF PRESSURE IN HPA 1022.0 1021.8 1018.7 1014.1 1015.6 1009.9 1007.1 1009.1 1012.5 1020.9 1017.8 1024.2 1016.1 MAX. QFF PRESSURE IN HPA 1036.8 1030.0 1031.4 1027.4 1023.6 1016.4 1011.6 1015.1 1024.6 1034.4 1029.8 1036.2 1036.8 DAY 7 12 3 7 26 1 8 20 22 18 28 10 MIN. QFF PRESSURE IN HPA 1006.8 1010.4 1005.6 1005.3 1007.7 995.5 999.2 1001.6 1005.4 1005.9 1007.8 1012.9 995.5 DAY 17 9 26 19 2 30 16 12 5 4 24 22 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 967.7 967.2 965.2 961.6 963.7 958.8 956.4 958.8 961.4 968.0 964.9 969.3 963.6 MAX. QFE PRESSURE IN HPA 980.8 975.8 976.3 972.6 971.2 964.7 960.9 963.9 970.9 980.6 976.2 980.2 980.8 DAY 7 12 3 7 26 1 23 24 27 17 15 10 MIN. QFE PRESSURE IN HPA 957.1 957.5 952.7 952.9 955.4 949.3 950.4 951.7 953.2 957.2 955.4 959.6 949.3 DAY 17 8 25 19 2 29 16 12 20 4 24 22 MEAN QNH PRESSURE IN HPA 1021.9 1021.3 1019.3 1015.5 1017.6 1012.5 1010.0 1012.5 1015.2 1022.2 1018.9 1023.5 1017.5 MAX. QNH PRESSURE IN HPA 1035.5 1030.3 1030.8 1027.0 1025.5 1018.7 1014.7 1017.9 1025.2 1035.3 1030.7 1034.9 1035.5 DAY 7 12 3 7 26 1 23 24 27 17 15 10 MIN. QNH PRESSURE IN HPA 1010.8 1011.2 1006.2 1006.4 1009.0 1002.6 1003.8 1005.1 1006.7 1010.9 1009.0 1013.4 1002.6 DAY 17 8 25 19 2 29 16 12 20 4 24 22 MEAN QFF PRESSURE IN HPA 1022.8 1022.5 1019.7 1014.7 1015.8 1010.0 1007.1 1009.5 1012.9 1021.8 1018.4 1024.7 1016.6 MAX. QFF PRESSURE IN HPA 1037.3 1031.7 1032.2 1027.8 1024.1 1016.6 1012.2 1015.4 1024.6 1036.2 1031.2 1037.6 1037.6 DAY 7 12 3 7 26 1 23 24 27 17 15 10 MIN. QFF PRESSURE IN HPA 1011.0 1011.1 1004.7 1004.7 1006.8 999.0 1000.2 1000.8 1003.9 1008.3 1007.2 1013.6 999.0 DAY 17 8 25 19 2 29 16 12 20 4 24 22 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 967.0 966.4 964.6 961.3 962.9 958.0 955.6 957.7 960.5 967.2 963.7 968.4 962.8 MAX. QFE PRESSURE IN HPA 979.8 975.2 975.6 970.7 970.5 963.9 960.1 963.4 969.6 980.6 976.3 979.4 980.6 DAY 7 12 2 7 26 1 23 24 27 17 15 10 MIN. QFE PRESSURE IN HPA 957.2 954.9 951.0 952.4 954.7 948.7 950.6 951.9 953.6 958.8 953.7 959.6 948.7 DAY 11 8 25 19 2 29 16 12 19 4 24 22 MEAN QNH PRESSURE IN HPA 1021.2 1020.5 1018.6 1015.2 1016.8 1011.7 1009.2 1011.4 1014.3 1021.3 1017.7 1022.6 1016.7 MAX. QNH PRESSURE IN HPA 1034.5 1029.7 1030.1 1025.0 1024.8 1017.9 1013.9 1017.3 1023.8 1035.3 1030.8 1034.1 1035.3 DAY 7 12 2 7 26 1 23 24 27 17 15 10 MIN. QNH PRESSURE IN HPA 1010.9 1008.5 1004.4 1005.8 1008.3 1002.0 1004.0 1005.3 1007.1 1012.5 1007.2 1013.4 1002.0 DAY 11 8 25 19 2 29 16 12 19 4 24 22 MEAN QFF PRESSURE IN HPA 1022.0 1021.5 1018.8 1014.3 1014.9 1009.1 1006.2 1008.3 1011.9 1020.5 1016.9 1023.6 1015.7 MAX. QFF PRESSURE IN HPA 1036.3 1031.0 1031.7 1025.6 1023.3 1015.8 1011.3 1014.6 1023.1 1036.6 1031.2 1036.4 1036.6 DAY 7 12 2 7 26 1 23 24 27 17 15 10 MIN. QFF PRESSURE IN HPA 1010.6 1007.9 1002.5 1003.6 1006.0 998.1 1000.6 1001.2 1004.4 1010.1 1005.1 1013.4 998.1 DAY 11 8 25 19 2 29 16 12 19 4 24 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 966.3 965.5 963.6 960.6 962.0 957.0 954.3 956.3 959.3 966.6 962.8 967.6 961.8 MAX. QFE PRESSURE IN HPA 979.4 974.3 974.9 968.8 968.6 963.0 959.1 962.2 968.6 981.1 975.5 977.9 981.1 DAY 7 12 2 13 26 23 23 24 27 17 15 10 MIN. QFE PRESSURE IN HPA 957.7 951.4 948.7 951.9 955.1 947.2 949.4 951.0 953.3 957.6 952.5 959.8 947.2 DAY 11 8 25 19 2 29 16 12 19 3 24 26 MEAN QNH PRESSURE IN HPA 1020.4 1019.5 1017.6 1014.4 1015.9 1010.7 1007.9 1010.0 1013.1 1020.7 1016.7 1021.7 1015.7 MAX. QNH PRESSURE IN HPA 1034.1 1028.7 1029.4 1023.0 1022.8 1016.9 1012.9 1016.1 1022.8 1035.9 1030.0 1032.5 1035.9 DAY 7 12 2 13 26 23 23 24 27 17 15 10 MIN. QNH PRESSURE IN HPA 1011.4 1004.8 1002.0 1005.3 1008.7 1000.4 1002.7 1004.4 1006.8 1011.3 1006.0 1013.6 1000.4 DAY 11 8 25 19 2 29 16 12 19 3 24 26 MEAN QFF PRESSURE IN HPA 1021.2 1020.5 1017.8 1013.5 1014.0 1008.0 1004.8 1006.8 1010.7 1019.8 1015.9 1022.7 1014.6 MAX. QFF PRESSURE IN HPA 1035.8 1030.0 1030.8 1023.1 1021.5 1015.8 1010.2 1013.3 1022.1 1037.0 1030.2 1034.8 1037.0 DAY 7 12 2 13 26 23 23 24 27 17 15 10 MIN. QFF PRESSURE IN HPA 1011.4 1004.0 999.9 1003.0 1006.3 996.4 999.4 1000.5 1004.1 1008.7 1004.0 1013.4 996.4 DAY 16 8 25 19 2 29 16 12 5 3 24 26 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 967.1 966.2 964.0 960.8 962.0 956.9 954.1 956.3 959.7 967.3 963.8 968.4 962.2 MAX. QFE PRESSURE IN HPA 979.1 974.3 975.1 968.6 968.2 963.0 958.5 961.9 968.8 981.6 976.6 979.0 981.6 DAY 6 12 2 6 26 23 31 24 27 17 15 10 MIN. QFE PRESSURE IN HPA 957.7 951.2 948.0 951.6 954.9 946.7 948.6 950.5 954.1 957.3 953.3 960.8 946.7 DAY 16 8 25 19 2 29 15 22 4 3 11 25 MEAN QNH PRESSURE IN HPA 1021.3 1020.3 1018.0 1014.7 1015.9 1010.5 1007.7 1009.9 1013.5 1021.4 1017.7 1022.6 1016.1 MAX. QNH PRESSURE IN HPA 1033.8 1028.7 1029.6 1022.8 1022.4 1016.9 1012.2 1015.8 1023.0 1036.4 1031.1 1033.7 1036.4 DAY 6 12 2 6 26 23 31 24 27 17 15 10 MIN. QNH PRESSURE IN HPA 1011.4 1004.6 1001.3 1005.0 1008.5 999.9 1001.9 1003.9 1007.6 1011.0 1006.8 1014.6 999.9 DAY 16 8 25 19 2 29 15 22 4 3 11 25 MEAN QFF PRESSURE IN HPA 1022.3 1021.5 1018.5 1013.9 1014.0 1007.9 1004.7 1006.8 1011.2 1020.9 1017.4 1023.8 1015.2 MAX. QFF PRESSURE IN HPA 1035.6 1030.1 1031.1 1023.5 1020.7 1016.0 1009.8 1013.0 1022.5 1037.8 1031.9 1036.2 1037.8 DAY 7 12 2 6 26 23 6 19 27 17 15 10 MIN. QFF PRESSURE IN HPA 1011.0 1003.8 999.5 1002.7 1006.0 995.8 998.2 1000.6 1004.6 1008.8 1005.0 1015.0 995.8 DAY 16 8 25 19 2 29 15 12 4 3 11 25 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 967.2 966.7 964.6 961.2 963.3 958.0 955.4 957.2 960.5 967.8 963.9 968.7 962.9 MAX. QFE PRESSURE IN HPA 980.0 973.9 975.9 969.4 968.1 963.2 960.1 963.3 970.3 981.5 976.2 979.4 981.5 DAY 6 17 2 6 25 23 7 19 21 17 15 10 MIN. QFE PRESSURE IN HPA 957.7 953.7 947.8 951.2 956.1 946.7 948.1 951.2 954.4 956.7 955.5 961.1 946.7 DAY 11 8 25 19 2 29 15 22 4 3 11 25 MEAN QNH PRESSURE IN HPA 1021.4 1020.8 1018.6 1015.1 1017.3 1011.7 1009.0 1010.9 1014.3 1021.9 1017.9 1022.8 1016.8 MAX. QNH PRESSURE IN HPA 1034.7 1028.3 1030.4 1023.6 1022.3 1017.1 1013.9 1017.2 1024.6 1036.3 1030.7 1034.1 1036.3 DAY 6 17 2 6 25 23 7 19 21 17 15 10 MIN. QNH PRESSURE IN HPA 1011.4 1007.2 1001.0 1004.6 1009.7 999.9 1001.4 1004.6 1007.9 1010.3 1009.1 1014.9 999.9 DAY 11 8 25 19 2 29 15 22 4 3 11 25 MEAN QFF PRESSURE IN HPA 1022.3 1022.0 1019.0 1014.3 1015.4 1009.1 1006.1 1007.8 1012.0 1021.3 1017.4 1024.0 1015.9 MAX. QFF PRESSURE IN HPA 1036.3 1030.2 1032.1 1024.4 1020.5 1016.3 1011.3 1014.7 1023.9 1037.9 1031.1 1036.8 1037.9 DAY 6 17 2 6 26 23 7 19 21 17 15 10 MIN. QFF PRESSURE IN HPA 1010.7 1006.9 999.3 1002.1 1006.8 995.7 997.7 1001.6 1005.1 1008.0 1007.3 1015.0 995.7 DAY 16 8 25 19 2 29 15 12 4 3 11 26 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 966.9 966.4 964.1 960.5 963.1 957.7 955.6 957.2 960.4 967.2 963.9 968.4 962.6 MAX. QFE PRESSURE IN HPA 979.1 973.2 975.4 970.6 969.0 963.2 959.7 963.4 970.8 980.3 975.5 978.4 980.3 DAY 6 12 2 6 25 1 7 19 21 17 15 10 MIN. QFE PRESSURE IN HPA 956.3 956.6 948.3 951.2 957.0 945.5 948.1 950.9 954.3 955.5 954.9 959.6 945.5 DAY 16 8 25 19 6 29 15 22 4 3 25 21 MEAN QNH PRESSURE IN HPA 1021.0 1020.5 1018.1 1014.4 1017.0 1011.4 1009.2 1010.8 1014.2 1021.3 1017.8 1022.5 1016.5 MAX. QNH PRESSURE IN HPA 1033.8 1027.6 1029.9 1024.9 1023.2 1017.1 1013.5 1017.3 1025.1 1035.0 1030.0 1033.0 1035.0 DAY 6 12 2 6 25 1 7 19 21 17 15 10 MIN. QNH PRESSURE IN HPA 1009.9 1010.2 1001.6 1004.6 1010.7 998.6 1001.4 1004.3 1007.8 1009.1 1008.5 1013.4 998.6 DAY 16 8 25 19 6 29 15 22 4 3 25 21 MEAN QFF PRESSURE IN HPA 1021.8 1021.5 1018.4 1013.5 1015.1 1008.8 1006.3 1007.6 1011.8 1020.7 1017.1 1023.5 1015.5 MAX. QFF PRESSURE IN HPA 1035.4 1029.2 1031.8 1025.7 1021.4 1015.7 1011.0 1014.7 1024.5 1036.6 1030.6 1035.3 1036.6 DAY 6 12 2 6 25 23 7 19 21 17 27 10 MIN. QFF PRESSURE IN HPA 1009.3 1009.6 1000.0 1001.8 1008.8 994.1 997.7 1001.2 1004.7 1006.4 1007.8 1013.5 994.1 DAY 16 8 25 19 6 29 15 22 4 3 10 21 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 M MEANS AND EXTREMES FOR THE YEAR 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.0 6.4 7.1 13.0 22.0 24.4 28.4 28.2 25.4 18.4 11.3 11.6 16.8 MINIMUN AIR TEMPERATURE (C) 2.0 2.9 4.1 9.3 16.7 19.5 23.3 23.4 20.7 14.6 8.4 7.4 12.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 3 6 29 26 16 4 0 0 84 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 10 10 3 0 0 0 0 0 0 0 0 0 23 TEMPERATURE RECORDS LOWEST(C) -2.8 -3.4 -1.6 2.8 8.6 15.4 19.6 18.8 13.8 10.0 3.0 1.8 -3.4 DAY 11 2 1 5 2 13 15 29 21 8 14 1 MAXIMUM AIR TEMPERATURE (C) 9.5 11.6 11.0 17.9 28.3 30.8 34.9 34.6 31.8 23.9 15.6 16.6 22.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 11 18 29 26 21 6 0 0 111 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 20.8 23.6 23.0 29.6 36.8 40.6 41.6 41.6 42.6 33.8 20.0 24.4 42.6 DAY 6 9 31 18 16 1 24 22 8 24 1 29 DIF. BETWEEN (MAX.-MIN.) (C) 7.5 8.7 6.9 8.6 11.6 11.3 11.6 11.2 11.1 9.3 7.2 9.2 9.5 MEAN DAILY TEMP. (MDT) (C) 5.8 7.2 7.6 13.6 22.5 25.2 29.1 29.0 26.2 19.3 12.0 12.0 17.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.5 76.2 126.8 250.6 247.5 162.2 35.3 0.0 0.0 900.2 HEATING DEG. DAYS(BASE 18 0C) 379.5 312.2 323.8 142.7 6.0 0.0 0.0 0.0 0.0 35.7 179.7 187.8 1567.3 DEWPOINT (MEAN C) 0.0 0.2 3.5 7.6 12.9 15.1 17.4 16.6 13.8 8.3 5.7 3.2 8.7 MIXING RATIO (G/KG) 4.07 4.17 5.20 6.99 10.01 11.63 13.40 12.96 10.70 7.30 6.09 5.08 8.13 VAPOUR PRESSURE (HPA) 6.29 6.43 7.99 10.71 15.22 17.60 20.21 19.55 16.20 11.19 9.41 7.82 12.38 SATURATION DEF. (HPA) 2.80 3.83 2.51 5.06 12.60 14.19 19.58 19.92 17.65 11.01 4.35 6.44 10.00 RELATIVE HUMIDITY (MEAN %) 73 69 80 74 60 60 54 54 53 57 70 59 64 RELATIVE HUMIDITY (MAX. %) 87 83 94 90 82 81 72 75 74 71 82 75 81 RELATIVE HUMIDITY (MIN. %) 58 56 68 58 41 42 35 34 35 43 59 47 48 RELATIVE HUMIDITY (MEAN% 03UTC) 76 73 85 78 71 70 67 66 64 62 75 61 71 RELATIVE HUMIDITY (MEAN% 09UTC) 65 64 73 69 51 50 43 40 41 49 64 54 55 RELATIVE HUMIDITY (MEAN% 15UTC) 75 71 79 71 53 50 42 43 47 54 71 59 60 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 10.6 44.8 49.7 41.9 15.4 27.1 53.5 14.6 4.2 54.7 42.1 10.4 369.0 DAYS WITH PRECIPITATION >=10 0 1 1 1 0 1 1 1 0 3 2 0 11 DAYS WITH PRECIPITATION >= 5 0 4 2 3 2 2 2 1 0 3 2 1 22 DAYS WITH PRECIPITATION >= 1 4 8 13 7 3 4 2 2 1 4 3 3 54 DAYS WITH PRECIPITATION 10 11 17 16 4 8 2 6 4 7 4 4 93 GREATEST DAILY PRECIPITATION 3.2 12.2 14.7 17.3 6.0 14.0 48.5 13.0 2.0 27.4 23.1 8.0 48.5 DAY 8 11 13 15 21 26 14 29 20 15 11 15 DAY WITH THUNDER STORM 0 0 0 0 1 1 0 0 1 1 0 0 4 DAYS WITH SNOW OR SLEET 8 5 6 0 0 0 0 0 0 0 1 0 20 DAYS WITH DUST 0 0 0 0 1 0 0 0 0 1 0 0 2 WIND DIRECTION (PREVAILING) 135 270 270 180 180 180 180 180 180 135 180 135 180 PREVAILING WIND SPEED(KNOTS) 6.7 4.3 3.9 7.6 7.5 10.0 10.3 8.9 10.9 6.0 6.4 10.6 8.6 PREVAILING WIND PERCENT 12.5 14.7 12.1 16.3 18.1 20.8 22.2 25.4 14.6 15.3 13.8 32.7 15.1 CALMS PERCENT OF WIND 65.7 50.4 55.2 42.5 37.5 32.1 31.9 25.4 43.3 42.3 60.0 43.1 44.1 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 179 185 202 195 195 213 222 204 210 193 174 151 195 VECTOR WIND MAGNITUDE(KNOTS) 1.5 1.7 1.6 2.7 2.2 3.7 3.7 3.3 2.5 2.2 1.6 4.1 2.4 WIND STEADINESES (MEAN %) 71.4 54.8 61.5 65.9 59.5 75.5 67.3 66.0 64.1 62.9 66.7 82.0 63.2 WIND SPEED (MEAN KNOTS) 2.1 3.1 2.6 4.1 3.7 4.9 5.5 5.0 3.9 3.5 2.4 5.0 3.8 FASTEST WIND DIRECTION 200 140 190 190 200 200 200 190 180 210 150 140 200 FASTEST WIND SPEED (KNOTS) 35 35 35 33 29 29 29 23 23 29 27 27 35 DAY 6 9 15 13 24 30 29 8 11 13 20 29 DAYS WITH SKY CLEAR (0-2)/8 7 5 2 6 13 16 22 24 23 14 16 14 162 DAYS WITH P.CLOUDY (3-6)/8 11 12 8 4 8 7 8 2 3 13 10 12 98 DAYS WITH CLOUDY (7-8)/8 13 12 21 20 10 7 1 5 4 4 4 5 106 DAYS WITH VISIBILITY =< 2 KM 3 8 9 8 0 2 0 0 0 0 1 0 31 DURATION OF SUNSHINE HOURS 141.5 136.9 103.9 139.5 271.4 283.3 341.3 307.1 276.8 230.0 191.7 187.8 2611.2 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 969.2 965.6 964.0 964.1 961.7 959.9 959.1 958.9 958.5 965.3 971.2 966.4 963.6 MAX. QFE PRESSURE IN HPA 983.0 975.8 971.0 977.2 969.3 967.5 968.3 970.7 970.8 978.1 983.1 976.2 983.1 DAY-HOUR 10- 6 13- 6 16- 6 4- 6 1-18 12- 3 3- 6 29- 6 30-21 2- 6 18- 6 1- 6 MIN. QFE PRESSURE IN HPA 954.0 948.7 953.3 948.6 953.5 952.1 952.5 950.2 948.4 950.3 962.7 953.9 948.4 DAY-HOUR 6-15 9-12 26- 0 13- 6 29-12 1- 9 24-15 8-12 8-15 27- 3 1-18 24-18 MEAN QNH PRESSURE IN HPA 1023.4 1019.6 1018.0 1018.1 1015.6 1013.7 1012.8 1012.6 1012.3 1019.3 1025.5 1020.5 1017.6 MAX. QNH PRESSURE IN HPA 1037.8 1030.3 1025.3 1031.8 1023.5 1021.6 1022.5 1025.0 1025.1 1032.7 1037.9 1030.7 1037.9 DAY-HOUR 10- 6 13- 6 16- 6 4- 6 1-18 12- 3 3- 6 29- 6 30-21 2- 6 18- 6 1- 6 MIN. QNH PRESSURE IN HPA 1007.5 1002.0 1006.8 1001.9 1007.0 1005.5 1006.0 1003.5 1001.7 1003.7 1016.6 1007.4 1001.7 DAY-HOUR 6-15 9-12 26- 0 13- 6 29-12 1- 9 24-15 8-12 8-15 27- 3 1-18 24-18 MEAN QFF PRESSURE IN HPA 1025.0 1020.9 1019.1 1018.0 1013.7 1011.3 1009.7 1009.5 1009.7 1018.2 1025.8 1020.7 1016.8 MAX. QFF PRESSURE IN HPA 1040.6 1032.7 1027.5 1033.3 1023.6 1020.0 1020.0 1022.7 1023.3 1032.0 1039.4 1032.6 1040.6 DAY-HOUR 10- 6 13- 6 16-21 4- 6 1-18 12- 3 3- 6 29- 6 30-21 2- 3 18- 6 1-15 MIN. QFF PRESSURE IN HPA 1007.2 1001.0 1006.7 999.5 1004.2 1001.4 1002.0 999.7 997.7 1000.9 1016.3 1006.3 997.7 DAY-HOUR 6-15 9-12 2-21 13- 6 29-12 1- 9 24-15 8-12 8-12 27- 0 1-18 29-18 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 969.1 965.0 963.5 963.3 961.6 959.8 959.3 958.8 958.3 964.9 970.9 966.3 963.4 MAX. QFE PRESSURE IN HPA 981.5 974.1 970.1 975.7 967.9 967.4 965.7 968.5 965.1 976.8 981.8 974.5 981.8 DAY 10 13 17 5 7 12 3 29 25 2 18 8 MIN. QFE PRESSURE IN HPA 956.9 953.6 953.3 951.4 955.6 953.1 955.6 951.0 949.6 950.5 964.5 955.4 949.6 DAY 7 10 26 13 16 1 7 8 8 27 2 25 MEAN QNH PRESSURE IN HPA 1023.3 1019.0 1017.5 1017.3 1015.5 1013.6 1013.1 1012.5 1012.1 1018.9 1025.2 1020.4 1017.4 MAX. QNH PRESSURE IN HPA 1036.3 1028.5 1024.4 1030.2 1022.1 1021.5 1019.8 1022.7 1019.1 1031.4 1036.6 1029.0 1036.6 DAY 10 13 17 5 7 12 3 29 25 2 18 8 MIN. QNH PRESSURE IN HPA 1010.6 1007.1 1006.8 1004.8 1009.2 1006.6 1009.2 1004.4 1002.9 1003.9 1018.5 1009.0 1002.9 DAY 7 10 26 13 16 1 7 8 8 27 2 25 MEAN QFF PRESSURE IN HPA 1024.8 1020.2 1018.6 1017.2 1013.6 1011.1 1009.9 1009.3 1009.3 1017.6 1025.4 1020.5 1016.5 MAX. QFF PRESSURE IN HPA 1039.1 1030.9 1026.8 1031.6 1022.0 1019.8 1017.4 1020.3 1018.0 1030.3 1037.9 1030.0 1039.1 DAY 10 13 17 5 2 12 3 29 24 2 18 2 MIN. QFF PRESSURE IN HPA 1010.1 1006.0 1006.8 1004.0 1006.3 1002.9 1005.1 1000.8 999.1 1000.9 1017.8 1008.2 999.1 DAY 7 10 26 13 16 1 25 8 8 27 2 25 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 969.2 965.4 964.1 964.0 962.1 960.7 960.1 959.6 959.1 965.3 971.2 966.5 963.9 MAX. QFE PRESSURE IN HPA 982.2 974.6 970.3 976.1 968.6 967.5 967.6 969.5 965.9 978.0 981.9 974.8 982.2 DAY 10 13 16 5 7 12 3 29 27 2 16 1 MIN. QFE PRESSURE IN HPA 959.3 955.8 955.0 948.7 955.1 952.8 955.6 951.3 949.6 950.3 965.2 955.0 948.7 DAY 7 10 2 13 29 1 7 8 8 27 6 25 MEAN QNH PRESSURE IN HPA 1023.4 1019.4 1018.0 1017.9 1016.0 1014.5 1013.9 1013.4 1012.8 1019.3 1025.6 1020.6 1017.9 MAX. QNH PRESSURE IN HPA 1037.0 1029.1 1024.6 1030.6 1022.8 1021.6 1021.7 1023.7 1020.0 1032.6 1036.7 1029.3 1037.0 DAY 10 13 16 5 7 12 3 29 27 2 16 1 MIN. QNH PRESSURE IN HPA 1013.1 1009.4 1008.6 1002.0 1008.7 1006.3 1009.2 1004.7 1002.9 1003.7 1019.2 1008.6 1002.0 DAY 7 10 2 13 29 1 7 8 8 27 6 25 MEAN QFF PRESSURE IN HPA 1025.2 1020.9 1019.3 1017.9 1014.2 1012.0 1010.7 1010.3 1010.5 1018.4 1026.1 1021.1 1017.2 MAX. QFF PRESSURE IN HPA 1040.0 1031.6 1026.8 1032.3 1021.9 1020.0 1019.5 1021.6 1019.0 1032.0 1038.3 1031.1 1040.0 DAY 10 13 17 5 7 12 3 29 24 2 18 1 MIN. QFF PRESSURE IN HPA 1012.8 1008.8 1009.2 999.8 1005.9 1002.3 1006.0 1001.0 999.5 1001.2 1019.2 1008.1 999.5 DAY 7 10 26 13 29 1 7 8 8 27 6 25 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 970.1 966.4 964.6 964.9 962.5 960.8 960.1 960.1 959.5 966.1 972.1 967.3 964.5 MAX. QFE PRESSURE IN HPA 983.0 975.8 971.0 977.2 969.1 967.4 968.3 970.7 967.2 978.1 983.1 976.2 983.1 DAY 10 13 16 4 7 12 3 29 24 2 18 1 MIN. QFE PRESSURE IN HPA 958.6 955.4 955.5 948.6 954.6 952.5 954.9 951.5 949.8 954.1 965.0 956.8 948.6 DAY 6 9 26 13 29 1 7 8 8 27 6 25 MEAN QNH PRESSURE IN HPA 1024.4 1020.5 1018.6 1018.9 1016.4 1014.6 1013.9 1013.9 1013.3 1020.2 1026.4 1021.5 1018.5 MAX. QNH PRESSURE IN HPA 1037.8 1030.3 1025.3 1031.8 1023.3 1021.5 1022.5 1025.0 1021.3 1032.7 1037.9 1030.7 1037.9 DAY 10 13 16 4 7 12 3 29 24 2 18 1 MIN. QNH PRESSURE IN HPA 1012.3 1009.0 1009.1 1001.9 1008.2 1006.0 1008.5 1004.9 1003.1 1007.6 1019.0 1010.5 1001.9 DAY 6 9 26 13 29 1 7 8 8 27 6 25 MEAN QFF PRESSURE IN HPA 1026.1 1021.8 1019.8 1018.8 1014.6 1012.3 1010.8 1010.9 1010.8 1019.1 1026.8 1021.8 1017.8 MAX. QFF PRESSURE IN HPA 1040.6 1032.7 1027.4 1033.3 1022.5 1019.9 1020.0 1022.7 1020.1 1031.9 1039.4 1032.4 1040.6 DAY 10 13 16 4 7 12 3 29 24 2 18 1 MIN. QFF PRESSURE IN HPA 1011.7 1008.5 1009.9 999.5 1005.6 1002.0 1005.3 1001.2 999.2 1005.5 1018.6 1009.6 999.2 DAY 6 9 26 13 29 1 7 8 8 27 6 25 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 968.9 965.6 964.0 964.7 962.0 960.1 959.2 959.1 958.6 965.1 971.1 966.3 963.7 MAX. QFE PRESSURE IN HPA 982.0 975.2 970.5 976.3 968.5 966.8 967.5 969.7 966.6 976.5 981.9 975.8 982.0 DAY 10 13 16 4 7 11 3 29 24 2 18 1 MIN. QFE PRESSURE IN HPA 956.5 950.5 953.8 952.2 953.8 952.1 954.0 951.2 949.4 954.4 964.3 955.4 949.4 DAY 6 9 2 18 29 1 7 8 8 27 6 25 MEAN QNH PRESSURE IN HPA 1023.1 1019.6 1017.9 1018.7 1015.9 1013.9 1012.9 1012.8 1012.3 1019.1 1025.4 1020.4 1017.7 MAX. QNH PRESSURE IN HPA 1036.8 1029.7 1024.8 1030.8 1022.7 1020.9 1021.6 1023.9 1020.7 1031.0 1036.7 1030.3 1036.8 DAY 10 13 16 4 7 11 3 29 24 2 18 1 MIN. QNH PRESSURE IN HPA 1010.1 1003.9 1007.3 1005.6 1007.3 1005.5 1007.5 1004.6 1002.7 1007.9 1018.3 1009.0 1002.7 DAY 6 9 2 18 29 1 7 8 8 27 6 25 MEAN QFF PRESSURE IN HPA 1024.7 1020.8 1019.0 1018.5 1013.9 1011.5 1009.8 1009.7 1009.6 1017.8 1025.6 1020.5 1016.8 MAX. QFF PRESSURE IN HPA 1039.4 1032.0 1026.8 1031.9 1022.0 1019.1 1019.0 1021.5 1019.6 1030.0 1037.8 1031.9 1039.4 DAY 10 13 16 4 1 11 3 29 24 2 18 1 MIN. QFF PRESSURE IN HPA 1009.8 1003.2 1007.6 1003.6 1005.1 1001.4 1004.5 1000.7 998.6 1005.7 1017.7 1007.8 998.6 DAY 6 9 2 18 29 1 7 8 8 27 6 25 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 968.4 964.9 963.5 963.9 961.0 959.0 957.9 958.0 957.6 964.5 970.4 965.6 962.9 MAX. QFE PRESSURE IN HPA 981.0 974.3 969.9 975.7 968.4 965.8 966.3 968.2 966.0 974.7 980.8 975.1 981.0 DAY 10 13 16 4 1 11 3 29 30 2 18 1 MIN. QFE PRESSURE IN HPA 954.8 948.7 954.0 950.4 953.5 952.1 953.1 950.2 948.6 955.0 963.2 954.9 948.6 DAY 6 9 2 18 29 1 24 8 8 26 1 25 MEAN QNH PRESSURE IN HPA 1022.5 1018.9 1017.5 1017.9 1014.9 1012.8 1011.6 1011.7 1011.3 1018.5 1024.7 1019.6 1016.8 MAX. QNH PRESSURE IN HPA 1035.8 1028.7 1024.1 1030.2 1022.6 1019.9 1020.4 1022.4 1020.1 1029.2 1035.5 1029.6 1035.8 DAY 10 13 16 4 1 11 3 29 30 2 18 1 MIN. QNH PRESSURE IN HPA 1008.4 1002.0 1007.5 1003.8 1007.0 1005.5 1006.6 1003.5 1001.9 1008.6 1017.1 1008.5 1001.9 DAY 6 9 2 18 29 1 24 8 8 26 1 25 MEAN QFF PRESSURE IN HPA 1024.0 1020.1 1018.5 1017.8 1012.9 1010.3 1008.4 1008.5 1008.6 1017.3 1024.9 1019.7 1015.9 MAX. QFF PRESSURE IN HPA 1038.5 1031.1 1026.2 1031.4 1022.5 1018.0 1017.5 1020.0 1018.5 1028.0 1036.7 1031.1 1038.5 DAY 10 13 16 4 1 11 3 29 24 2 18 1 MIN. QFF PRESSURE IN HPA 1008.3 1001.0 1007.6 1001.5 1004.2 1001.6 1002.4 999.7 997.7 1005.7 1016.7 1007.3 997.7 DAY 6 9 2 18 29 1 24 8 8 26 1 25 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 969.2 965.8 964.0 964.0 961.1 958.9 957.8 958.0 958.0 965.3 971.2 966.4 963.3 MAX. QFE PRESSURE IN HPA 981.9 974.7 970.3 975.9 968.6 965.4 965.7 968.4 967.9 975.5 981.5 976.1 981.9 DAY 10 13 16 4 1 11 3 29 30 1 15 1 MIN. QFE PRESSURE IN HPA 954.0 949.9 953.7 949.7 954.6 952.9 952.5 950.7 948.4 954.8 963.0 955.6 948.4 DAY 6 9 2 18 29 4 24 8 8 26 1 29 MEAN QNH PRESSURE IN HPA 1023.4 1019.8 1018.0 1018.0 1014.9 1012.7 1011.5 1011.7 1011.7 1019.3 1025.5 1020.4 1017.2 MAX. QNH PRESSURE IN HPA 1036.7 1029.2 1024.6 1030.4 1022.8 1019.4 1019.8 1022.6 1022.1 1030.0 1036.3 1030.6 1036.7 DAY 10 13 16 4 1 11 3 29 30 1 15 1 MIN. QNH PRESSURE IN HPA 1007.5 1003.2 1007.2 1003.0 1008.2 1006.4 1006.0 1004.1 1001.7 1008.4 1016.9 1009.2 1001.7 DAY 6 9 2 18 29 4 24 8 8 26 1 29 MEAN QFF PRESSURE IN HPA 1025.1 1021.3 1019.2 1018.0 1013.1 1010.2 1008.3 1008.7 1009.3 1018.4 1026.0 1020.9 1016.5 MAX. QFF PRESSURE IN HPA 1039.7 1031.7 1026.7 1031.8 1022.9 1017.7 1017.0 1020.5 1020.3 1029.8 1037.7 1032.6 1039.7 DAY 10 13 16 4 1 11 3 29 30 18 15 1 MIN. QFF PRESSURE IN HPA 1007.2 1002.4 1007.1 1001.0 1005.4 1003.2 1002.0 1000.3 998.0 1006.0 1017.0 1007.7 998.0 DAY 6 9 2 18 29 4 24 8 8 26 1 29 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 969.4 966.0 964.5 964.3 962.0 960.2 959.1 959.0 958.8 965.9 971.4 966.5 963.9 MAX. QFE PRESSURE IN HPA 981.8 975.0 970.7 976.5 969.3 967.4 966.6 968.9 969.7 976.8 981.9 976.1 981.9 DAY 9 13 16 4 1 11 3 29 30 1 15 1 MIN. QFE PRESSURE IN HPA 954.2 951.0 953.6 950.1 955.9 954.2 953.9 952.8 949.0 953.7 962.7 953.9 949.0 DAY 6 9 2 18 31 18 6 7 8 26 1 24 MEAN QNH PRESSURE IN HPA 1023.6 1020.1 1018.5 1018.3 1015.8 1014.0 1012.8 1012.8 1012.6 1019.9 1025.7 1020.6 1017.9 MAX. QNH PRESSURE IN HPA 1036.6 1029.5 1025.0 1031.0 1023.5 1021.5 1020.7 1023.1 1023.9 1031.4 1036.7 1030.6 1036.7 DAY 9 13 16 4 1 11 3 29 30 1 15 1 MIN. QNH PRESSURE IN HPA 1007.7 1004.4 1007.1 1003.4 1009.5 1007.7 1007.4 1006.3 1002.3 1007.2 1016.6 1007.4 1002.3 DAY 6 9 2 18 31 18 6 7 8 26 1 24 MEAN QFF PRESSURE IN HPA 1025.4 1021.5 1019.6 1018.2 1014.0 1011.7 1009.7 1009.7 1010.1 1018.9 1026.1 1020.9 1017.1 MAX. QFF PRESSURE IN HPA 1039.5 1032.2 1027.2 1032.6 1023.6 1019.8 1018.0 1021.1 1022.1 1030.7 1038.1 1032.2 1039.5 DAY 9 26 16 4 1 11 3 29 30 1 15 1 MIN. QFF PRESSURE IN HPA 1007.6 1003.3 1007.1 1001.1 1006.6 1004.1 1004.3 1002.9 998.2 1004.4 1016.3 1006.3 998.2 DAY 6 9 2 18 31 29 24 7 8 26 1 29 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 969.2 965.5 964.0 963.9 961.8 960.2 959.2 958.8 958.6 965.3 971.1 966.3 963.6 MAX. QFE PRESSURE IN HPA 981.8 974.3 970.7 976.5 968.6 967.4 966.4 968.4 970.8 976.8 981.5 975.5 981.8 DAY 9 12 16 4 1 11 3 29 30 1 17 7 MIN. QFE PRESSURE IN HPA 956.9 951.0 953.6 951.4 954.5 953.9 955.1 951.4 949.4 951.7 963.2 954.6 949.4 DAY 6 9 2 18 31 18 24 7 8 26 1 24 MEAN QNH PRESSURE IN HPA 1023.4 1019.6 1017.9 1017.8 1015.7 1014.0 1013.0 1012.6 1012.3 1019.3 1025.4 1020.4 1017.6 MAX. QNH PRESSURE IN HPA 1036.6 1028.7 1025.0 1031.0 1022.8 1021.5 1020.5 1022.6 1025.1 1031.4 1036.3 1030.0 1036.6 DAY 9 12 16 4 1 11 3 29 30 1 17 7 MIN. QNH PRESSURE IN HPA 1010.6 1004.4 1007.1 1004.8 1008.0 1007.4 1008.7 1004.8 1002.7 1005.1 1017.1 1008.2 1002.7 DAY 6 9 2 18 31 18 24 7 8 26 1 24 MEAN QFF PRESSURE IN HPA 1025.0 1020.8 1019.0 1017.6 1013.7 1011.6 1009.8 1009.3 1009.7 1018.0 1025.6 1020.5 1016.7 MAX. QFF PRESSURE IN HPA 1039.5 1031.1 1027.5 1032.4 1023.0 1019.9 1017.8 1020.3 1023.3 1030.4 1037.6 1031.2 1039.5 DAY 9 26 16 4 1 11 3 29 30 1 17 1 MIN. QFF PRESSURE IN HPA 1010.2 1003.3 1006.7 1002.8 1004.7 1004.2 1004.7 1001.2 998.7 1002.1 1016.6 1007.5 998.7 DAY 6 9 2 18 31 18 24 7 8 26 1 24 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 M MEANS AND EXTREMES FOR THE YEAR 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.5 5.7 8.4 17.4 21.7 26.5 27.8 28.9 23.5 21.5 11.9 8.9 17.5 MINIMUN AIR TEMPERATURE (C) 4.4 2.5 4.4 12.2 16.6 20.3 22.9 23.6 19.2 17.3 8.8 6.2 13.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 2 2 13 28 30 9 5 0 0 89 DAYS WITH MINIMUM TEMP. <=-4 0 1 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH FREEZING MIN.<= 0 4 8 5 0 0 0 0 0 0 0 0 1 18 TEMPERATURE RECORDS LOWEST(C) -2.6 -4.0 -2.0 3.8 11.4 14.4 19.6 20.8 12.8 8.4 5.6 0.0 -4.0 DAY 29 8 9 12 6 4 7 22 15 31 7 20 MAXIMUM AIR TEMPERATURE (C) 11.5 9.9 12.8 23.4 27.5 32.7 33.9 35.2 29.2 26.8 15.6 12.5 22.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 4 9 23 29 31 10 10 0 0 116 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.8 20.4 25.6 33.0 40.0 38.0 39.6 43.6 39.0 34.6 25.6 22.2 43.6 DAY 10 18 24 24 28 12 29 12 1 2 4 9 DIF. BETWEEN (MAX.-MIN.) (C) 7.1 7.4 8.4 11.2 10.9 12.4 11.0 11.6 10.0 9.5 6.8 6.3 9.4 MEAN DAILY TEMP. (MDT) (C) 8.0 6.2 8.6 17.8 22.1 26.5 28.4 29.4 24.2 22.1 12.2 9.4 17.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 21.5 73.3 169.9 229.3 260.7 99.7 60.4 0.0 0.0 914.8 HEATING DEG. DAYS(BASE 18 0C) 311.4 330.4 293.6 60.7 14.6 0.0 0.0 0.0 0.6 5.4 176.5 268.6 1461.8 DEWPOINT (MEAN C) 1.3 -0.7 1.8 6.3 11.7 14.6 18.2 16.3 12.9 10.3 6.0 1.6 8.4 MIXING RATIO (G/KG) 4.48 3.87 4.65 6.51 9.23 11.16 14.05 13.03 10.16 8.46 6.19 4.57 8.03 VAPOUR PRESSURE (HPA) 6.90 5.98 7.13 9.93 14.06 16.86 21.11 19.61 15.45 12.92 9.53 7.04 12.21 SATURATION DEF. (HPA) 3.89 3.52 4.61 11.17 13.37 18.98 17.03 21.11 14.58 13.51 4.81 4.88 10.95 RELATIVE HUMIDITY (MEAN %) 68 67 67 53 57 52 59 52 56 53 70 65 60 RELATIVE HUMIDITY (MAX. %) 83 84 82 73 75 72 77 73 75 72 83 78 77 RELATIVE HUMIDITY (MIN. %) 53 52 52 36 40 35 39 33 38 38 57 52 44 RELATIVE HUMIDITY (MEAN% 03UTC) 73 71 71 64 67 65 75 66 69 60 71 65 68 RELATIVE HUMIDITY (MEAN% 09UTC) 65 63 62 43 47 43 46 42 46 44 64 62 52 RELATIVE HUMIDITY (MEAN% 15UTC) 68 65 70 48 49 41 47 39 46 51 74 67 55 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 34.4 24.7 56.6 11.5 57.0 74.8 1.5 1.9 4.1 70.3 42.6 64.8 444.2 DAYS WITH PRECIPITATION >=10 0 0 1 0 3 1 0 0 0 3 2 2 12 DAYS WITH PRECIPITATION >= 5 3 1 5 2 3 1 0 0 0 3 4 4 26 DAYS WITH PRECIPITATION >= 1 6 7 10 2 4 4 1 1 2 4 6 5 52 DAYS WITH PRECIPITATION 12 12 15 6 5 6 3 2 5 5 6 8 85 GREATEST DAILY PRECIPITATION 9.9 8.7 14.2 6.1 22.0 65.0 1.0 1.0 2.2 30.0 12.0 30.0 65.0 DAY 11 6 26 10 5 1 19 22 15 7 6 11 DAY WITH THUNDER STORM 0 0 0 0 1 5 2 0 0 3 0 0 11 DAYS WITH SNOW OR SLEET 6 6 5 0 0 0 0 0 0 0 0 2 19 DAYS WITH DUST 0 0 0 3 3 2 1 0 3 2 0 0 14 WIND DIRECTION (PREVAILING) 135 135 180 180 180 180 270 180 180 180 135 135 180 PREVAILING WIND SPEED(KNOTS) 12.7 11.6 10.4 10.7 11.4 10.3 5.6 9.1 10.1 8.6 9.9 12.4 10.1 PREVAILING WIND PERCENT 15.3 18.3 18.5 19.2 16.1 21.7 22.2 16.1 21.3 14.1 9.2 22.2 15.0 CALMS PERCENT OF WIND 60.1 44.6 40.3 45.0 43.5 41.3 27.4 39.5 41.3 54.8 70.4 54.4 46.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 175 178 189 193 206 214 227 219 212 193 183 161 197 VECTOR WIND MAGNITUDE(KNOTS) 2.6 3.1 3.7 3.3 3.3 3.0 4.0 2.4 3.2 2.1 1.1 3.5 2.8 WIND STEADINESES (MEAN %) 65.0 67.4 72.5 66.0 71.7 65.2 72.7 58.5 69.6 60.0 47.8 79.5 63.6 WIND SPEED (MEAN KNOTS) 4.0 4.6 5.1 5.0 4.6 4.6 5.5 4.1 4.6 3.5 2.3 4.4 4.4 FASTEST WIND DIRECTION 150 190 220 200 180 190 190 120 200 180 200 150 150 FASTEST WIND SPEED (KNOTS) 29 29 29 31 31 33 21 23 27 23 27 35 35 DAY 15 6 8 19 19 22 12 28 4 7 24 9 DAYS WITH SKY CLEAR (0-2)/8 10 12 11 14 17 17 15 25 19 19 11 11 181 DAYS WITH P.CLOUDY (3-6)/8 11 8 10 10 8 9 14 5 9 7 11 8 110 DAYS WITH CLOUDY (7-8)/8 10 8 10 6 6 4 2 1 2 5 8 12 74 DAYS WITH VISIBILITY =< 2 KM 5 4 2 1 0 2 1 0 0 1 3 4 23 DURATION OF SUNSHINE HOURS 165.4 164.4 191.0 257.8 294.5 294.8 303.8 322.4 257.1 240.3 163.7 149.5 2804.7 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 965.0 966.9 962.1 959.7 962.1 957.4 955.9 957.6 962.9 963.5 967.8 965.4 962.2 MAX. QFE PRESSURE IN HPA 977.9 975.7 980.9 970.6 971.0 963.9 963.4 964.8 971.8 973.2 982.6 975.9 982.6 DAY-HOUR 23-18 7-15 11- 3 20- 6 16- 6 7-18 19- 6 21- 6 15- 6 8- 6 7- 6 17-15 MIN. QFE PRESSURE IN HPA 952.8 957.8 949.8 944.7 947.2 950.5 949.1 949.0 949.7 954.6 956.6 951.8 944.7 DAY-HOUR 16- 0 5-12 17-12 9-18 4-12 30-15 11-12 5-12 2- 0 3- 0 5- 3 9-15 MEAN QNH PRESSURE IN HPA 1019.1 1021.0 1016.0 1013.4 1016.0 1011.1 1009.5 1011.2 1016.8 1017.5 1022.0 1019.5 1016.1 MAX. QNH PRESSURE IN HPA 1032.5 1030.2 1035.6 1024.9 1025.3 1017.9 1017.3 1018.8 1026.1 1027.6 1037.4 1030.4 1037.4 DAY-HOUR 23-18 7-15 11- 3 20- 6 16- 6 7-18 19- 6 21- 6 15- 6 8- 6 7- 6 17-15 MIN. QNH PRESSURE IN HPA 1006.3 1011.5 1003.1 997.8 1000.4 1003.9 1002.4 1002.3 1003.0 1008.2 1010.2 1005.2 997.8 DAY-HOUR 16- 0 5-12 17-12 9-18 4-12 30-15 11-12 5-12 2- 0 3- 0 5- 3 9-15 MEAN QFF PRESSURE IN HPA 1020.1 1022.4 1016.8 1012.5 1014.2 1008.3 1006.4 1008.0 1014.7 1015.7 1022.2 1020.3 1015.1 MAX. QFF PRESSURE IN HPA 1034.6 1033.5 1037.9 1025.0 1024.6 1016.6 1014.7 1016.4 1025.5 1026.8 1038.5 1032.7 1038.5 DAY-HOUR 23-18 7-18 11- 3 20- 6 16- 3 4- 3 19- 6 21- 6 15- 6 8- 6 7- 6 17-15 MIN. QFF PRESSURE IN HPA 1006.2 1012.4 1002.8 995.6 997.1 1000.4 998.9 998.2 999.0 1004.8 1008.3 1004.1 995.6 DAY-HOUR 16- 0 22-12 24- 0 9-18 4-12 30-15 11-12 13- 0 2- 0 3- 0 5- 3 9-15 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 965.1 966.1 961.4 959.3 962.0 957.5 956.1 957.5 962.8 963.0 967.6 965.2 962.0 MAX. QFE PRESSURE IN HPA 976.9 973.6 978.9 967.2 970.3 963.9 962.0 963.9 970.9 971.6 981.0 974.8 981.0 DAY 24 9 11 20 16 8 20 22 15 8 8 28 MIN. QFE PRESSURE IN HPA 952.8 959.0 950.9 950.6 951.5 951.8 949.8 949.4 949.7 954.6 957.0 953.8 949.4 DAY 16 23 24 6 4 13 11 13 2 3 5 10 MEAN QNH PRESSURE IN HPA 1019.1 1020.2 1015.3 1013.1 1015.9 1011.1 1009.7 1011.2 1016.7 1016.9 1021.8 1019.3 1015.9 MAX. QNH PRESSURE IN HPA 1031.5 1028.0 1033.6 1021.3 1024.6 1017.9 1015.9 1017.9 1025.2 1025.9 1035.8 1029.3 1035.8 DAY 24 9 11 20 16 8 20 22 15 8 8 28 MIN. QNH PRESSURE IN HPA 1006.3 1012.8 1004.3 1004.0 1004.9 1005.2 1003.1 1002.7 1003.0 1008.2 1010.7 1007.3 1002.7 DAY 16 23 24 6 4 13 11 13 2 3 5 10 MEAN QFF PRESSURE IN HPA 1020.1 1021.5 1016.1 1012.1 1014.0 1008.3 1006.5 1007.8 1014.4 1015.0 1021.9 1020.0 1014.8 MAX. QFF PRESSURE IN HPA 1033.4 1030.6 1035.5 1021.4 1023.9 1016.4 1013.5 1015.2 1024.3 1025.2 1036.6 1031.3 1036.6 DAY 24 8 11 12 16 4 20 22 15 8 8 28 MIN. QFF PRESSURE IN HPA 1006.2 1013.6 1002.8 1003.2 1002.4 1001.0 999.4 998.2 999.0 1004.8 1008.5 1006.4 998.2 DAY 16 18 24 6 4 13 11 13 2 3 5 9 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 965.4 966.8 962.2 960.0 962.5 958.2 957.0 958.5 963.5 963.4 967.9 965.4 962.6 MAX. QFE PRESSURE IN HPA 976.5 975.1 980.9 968.8 970.9 963.9 962.8 964.7 970.9 972.0 981.4 974.0 981.4 DAY 24 21 11 20 16 8 19 22 15 8 7 28 MIN. QFE PRESSURE IN HPA 953.2 960.1 951.7 949.9 951.5 953.6 950.9 950.3 952.2 957.7 956.6 954.1 949.9 DAY 16 4 24 5 4 13 11 13 2 2 5 9 MEAN QNH PRESSURE IN HPA 1019.4 1020.9 1016.1 1013.8 1016.4 1011.9 1010.6 1012.2 1017.4 1017.4 1022.1 1019.5 1016.5 MAX. QNH PRESSURE IN HPA 1031.0 1029.6 1035.6 1023.0 1025.2 1017.9 1016.7 1018.7 1025.2 1026.3 1036.2 1028.4 1036.2 DAY 24 21 11 20 16 8 19 22 15 8 7 28 MIN. QNH PRESSURE IN HPA 1006.7 1013.9 1005.1 1003.2 1004.9 1007.1 1004.3 1003.7 1005.6 1011.4 1010.2 1007.6 1003.2 DAY 16 4 24 5 4 13 11 13 2 2 5 9 MEAN QFF PRESSURE IN HPA 1020.6 1022.6 1017.2 1013.0 1014.7 1009.2 1007.6 1009.0 1015.3 1015.8 1022.4 1020.4 1015.6 MAX. QFF PRESSURE IN HPA 1033.3 1031.2 1037.9 1022.7 1024.6 1016.6 1013.8 1016.3 1024.4 1025.8 1037.4 1030.4 1037.9 DAY 24 21 11 12 16 4 19 22 15 8 7 28 MIN. QFF PRESSURE IN HPA 1006.9 1014.7 1004.2 1001.5 1002.4 1003.4 1000.5 999.5 1002.1 1009.0 1008.3 1006.6 999.5 DAY 16 4 24 5 4 13 11 13 2 2 5 9 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 966.2 967.9 962.8 960.6 962.9 958.3 956.9 959.1 964.0 964.3 968.6 966.4 963.2 MAX. QFE PRESSURE IN HPA 976.4 975.1 980.9 970.6 971.0 963.9 963.4 964.8 971.8 973.2 982.6 974.5 982.6 DAY 24 21 11 20 16 8 19 21 15 8 7 17 MIN. QFE PRESSURE IN HPA 956.8 960.4 952.1 949.0 951.9 954.0 950.9 951.2 952.1 957.5 957.4 954.5 949.0 DAY 16 22 17 5 4 30 11 5 2 2 5 9 MEAN QNH PRESSURE IN HPA 1020.3 1022.1 1016.8 1014.5 1016.8 1012.0 1010.6 1012.8 1018.0 1018.3 1022.8 1020.5 1017.1 MAX. QNH PRESSURE IN HPA 1030.9 1029.6 1035.6 1024.9 1025.3 1017.9 1017.3 1018.8 1026.1 1027.6 1037.4 1029.0 1037.4 DAY 24 21 11 20 16 8 19 21 15 8 7 17 MIN. QNH PRESSURE IN HPA 1010.5 1014.2 1005.5 1002.3 1005.3 1007.5 1004.3 1004.6 1005.5 1011.2 1011.1 1008.0 1002.3 DAY 16 22 17 5 4 30 11 5 2 2 5 9 MEAN QFF PRESSURE IN HPA 1021.4 1023.6 1017.7 1013.6 1015.1 1009.2 1007.6 1009.7 1015.9 1016.6 1023.1 1021.3 1016.2 MAX. QFF PRESSURE IN HPA 1033.0 1031.7 1037.7 1025.0 1024.4 1016.5 1014.7 1016.4 1025.5 1026.8 1038.5 1030.8 1038.5 DAY 24 8 11 20 16 4 19 21 15 8 7 28 MIN. QFF PRESSURE IN HPA 1010.8 1015.1 1005.4 1000.3 1002.6 1004.2 1000.6 1001.1 1001.9 1008.5 1008.9 1007.1 1000.3 DAY 16 4 17 5 4 16 11 13 2 2 5 9 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 964.8 967.2 962.4 959.8 962.3 957.5 956.0 957.9 962.9 963.4 967.8 965.3 962.3 MAX. QFE PRESSURE IN HPA 975.4 975.0 979.8 969.1 970.0 963.2 962.9 964.0 970.5 971.9 981.3 974.3 981.3 DAY 23 7 11 20 15 4 19 21 15 8 7 17 MIN. QFE PRESSURE IN HPA 956.7 958.5 950.8 947.6 950.1 952.7 950.0 950.0 951.5 957.8 958.1 953.2 947.6 DAY 16 22 17 5 4 30 11 5 2 2 5 9 MEAN QNH PRESSURE IN HPA 1018.8 1021.3 1016.3 1013.6 1016.2 1011.2 1009.6 1011.6 1016.8 1017.4 1022.0 1019.3 1016.2 MAX. QNH PRESSURE IN HPA 1029.9 1029.5 1034.5 1023.3 1024.2 1017.1 1016.8 1018.0 1024.8 1026.2 1036.1 1028.7 1036.1 DAY 23 7 11 20 15 4 19 21 15 8 7 17 MIN. QNH PRESSURE IN HPA 1010.3 1012.2 1004.2 1000.8 1003.4 1006.2 1003.3 1003.3 1004.9 1011.5 1011.8 1006.7 1000.8 DAY 16 22 17 5 4 30 11 5 2 2 5 9 MEAN QFF PRESSURE IN HPA 1019.8 1022.7 1017.1 1012.6 1014.3 1008.4 1006.5 1008.4 1014.6 1015.5 1022.1 1020.0 1015.2 MAX. QFF PRESSURE IN HPA 1031.6 1032.5 1036.4 1023.4 1023.6 1015.9 1014.2 1015.4 1024.0 1025.2 1036.9 1030.7 1036.9 DAY 23 7 11 20 15 4 19 21 15 8 7 17 MIN. QFF PRESSURE IN HPA 1011.1 1013.4 1004.0 999.0 1000.2 1002.8 999.7 999.7 1001.3 1008.9 1009.7 1005.4 999.0 DAY 16 22 17 5 4 30 11 5 2 2 5 9 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 964.0 966.3 961.6 958.9 961.2 956.5 954.7 956.4 961.8 962.8 967.2 964.8 961.3 MAX. QFE PRESSURE IN HPA 975.9 975.2 977.6 967.5 969.4 962.2 962.6 962.3 968.9 971.4 981.0 974.4 981.0 DAY 23 7 11 13 15 3 19 21 15 8 7 17 MIN. QFE PRESSURE IN HPA 955.0 957.8 949.8 948.0 947.2 951.2 949.1 949.0 951.4 955.9 959.5 952.2 947.2 DAY 31 5 17 5 4 30 11 5 2 6 5 9 MEAN QNH PRESSURE IN HPA 1018.0 1020.4 1015.4 1012.6 1015.1 1010.1 1008.2 1010.0 1015.7 1016.7 1021.3 1018.9 1015.2 MAX. QNH PRESSURE IN HPA 1030.4 1029.7 1032.2 1021.6 1023.6 1016.1 1016.5 1016.2 1023.1 1025.7 1035.8 1028.9 1035.8 DAY 23 7 11 13 15 3 19 21 15 8 7 17 MIN. QNH PRESSURE IN HPA 1008.6 1011.5 1003.1 1001.3 1000.4 1004.6 1002.4 1002.3 1004.8 1009.5 1013.3 1005.6 1000.4 DAY 31 5 17 5 4 30 11 5 2 6 5 9 MEAN QFF PRESSURE IN HPA 1018.9 1021.7 1016.2 1011.5 1013.2 1007.3 1005.0 1006.7 1013.4 1014.8 1021.4 1019.5 1014.1 MAX. QFF PRESSURE IN HPA 1032.2 1032.6 1034.0 1021.6 1022.7 1014.9 1013.9 1013.5 1022.2 1024.6 1036.6 1030.7 1036.6 DAY 23 7 11 13 15 4 19 21 15 8 7 17 MIN. QFF PRESSURE IN HPA 1009.9 1012.4 1002.8 1000.5 997.1 1001.2 998.9 998.6 1001.0 1007.1 1011.2 1004.4 997.1 DAY 31 22 17 5 4 30 11 5 2 6 5 9 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 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 964.9 966.9 962.0 959.2 961.2 956.5 954.6 956.4 962.2 963.6 968.0 965.5 961.7 MAX. QFE PRESSURE IN HPA 976.5 975.7 977.9 967.8 970.0 962.7 962.1 962.8 968.3 971.0 982.2 975.9 982.2 DAY 23 7 11 13 15 4 19 21 14 8 7 17 MIN. QFE PRESSURE IN HPA 954.3 959.1 951.5 945.9 948.8 950.5 949.3 949.7 950.3 956.0 960.1 951.8 945.9 DAY 15 22 17 9 4 30 10 5 1 6 4 9 MEAN QNH PRESSURE IN HPA 1018.9 1021.0 1015.9 1013.0 1015.1 1010.1 1008.1 1010.0 1016.1 1017.5 1022.1 1019.6 1015.6 MAX. QNH PRESSURE IN HPA 1031.0 1030.2 1032.5 1022.0 1024.2 1016.6 1016.0 1016.7 1022.5 1025.3 1037.0 1030.4 1037.0 DAY 23 7 11 13 15 4 19 21 14 8 7 17 MIN. QNH PRESSURE IN HPA 1007.8 1012.9 1004.9 999.1 1002.1 1003.9 1002.6 1003.0 1003.7 1009.6 1013.9 1005.2 999.1 DAY 15 22 17 9 4 30 10 5 1 6 4 9 MEAN QFF PRESSURE IN HPA 1020.1 1022.6 1016.9 1012.2 1013.3 1007.4 1005.1 1006.8 1014.1 1016.0 1022.5 1020.5 1014.8 MAX. QFF PRESSURE IN HPA 1033.1 1033.2 1034.7 1022.1 1023.5 1015.4 1013.5 1014.2 1021.4 1025.1 1038.1 1032.7 1038.1 DAY 23 7 11 13 15 4 19 21 15 31 7 17 MIN. QFF PRESSURE IN HPA 1008.5 1013.9 1003.9 997.3 999.6 1000.4 999.1 999.5 1000.1 1007.6 1012.6 1004.1 997.3 DAY 15 22 23 9 4 30 11 5 1 6 4 9 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 965.1 967.2 962.4 960.0 962.7 957.5 956.0 957.5 963.2 964.1 968.1 965.6 962.4 MAX. QFE PRESSURE IN HPA 977.9 975.7 978.5 967.8 970.8 963.9 962.6 963.9 970.4 971.9 982.2 975.6 982.2 DAY 23 7 10 13 15 7 19 21 14 31 7 27 MIN. QFE PRESSURE IN HPA 953.3 959.2 951.9 944.7 953.9 952.1 950.0 950.5 950.5 956.1 959.0 952.8 944.7 DAY 15 22 23 9 4 30 10 14 1 6 4 9 MEAN QNH PRESSURE IN HPA 1019.2 1021.3 1016.3 1013.8 1016.6 1011.1 1009.6 1011.2 1017.1 1018.1 1022.2 1019.7 1016.3 MAX. QNH PRESSURE IN HPA 1032.5 1030.2 1033.1 1022.0 1025.1 1017.9 1016.5 1017.9 1024.7 1026.2 1037.0 1030.1 1037.0 DAY 23 7 10 13 15 7 19 21 14 31 7 27 MIN. QNH PRESSURE IN HPA 1006.8 1013.0 1005.3 997.8 1007.4 1005.5 1003.3 1003.9 1003.9 1009.7 1012.8 1006.3 997.8 DAY 15 22 23 9 4 30 10 14 1 6 4 9 MEAN QFF PRESSURE IN HPA 1020.3 1022.8 1017.2 1012.9 1014.8 1008.4 1006.6 1008.1 1015.0 1016.4 1022.4 1020.5 1015.4 MAX. QFF PRESSURE IN HPA 1034.6 1033.5 1035.2 1022.0 1024.6 1016.1 1014.1 1015.5 1023.7 1026.2 1038.1 1032.2 1038.1 DAY 23 7 10 13 15 3 19 21 14 31 7 27 MIN. QFF PRESSURE IN HPA 1007.0 1014.2 1004.3 995.6 1004.8 1002.3 999.8 1000.3 1000.2 1007.5 1011.0 1005.4 995.6 DAY 15 22 23 9 4 12 10 14 1 2 4 9 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 965.0 966.7 961.8 959.7 962.3 957.3 956.1 957.4 963.1 963.7 967.6 965.4 962.2 MAX. QFE PRESSURE IN HPA 977.2 974.3 978.9 966.4 970.3 963.9 962.3 963.9 970.9 971.7 981.6 975.4 981.6 DAY 23 8 10 13 15 7 19 21 14 31 7 27 MIN. QFE PRESSURE IN HPA 953.3 959.0 951.1 945.6 952.0 951.2 949.6 950.5 950.5 955.3 958.0 953.3 945.6 DAY 15 22 23 9 4 30 10 4 1 2 4 9 MEAN QNH PRESSURE IN HPA 1019.0 1020.8 1015.7 1013.4 1016.2 1010.9 1009.7 1011.1 1017.0 1017.6 1021.8 1019.4 1016.1 MAX. QNH PRESSURE IN HPA 1031.8 1028.7 1033.6 1020.5 1024.6 1017.9 1016.2 1017.9 1025.2 1026.0 1036.4 1029.9 1036.4 DAY 23 8 10 13 15 7 19 21 14 31 7 27 MIN. QNH PRESSURE IN HPA 1006.8 1012.8 1004.5 998.7 1005.4 1004.6 1002.9 1003.9 1003.9 1008.9 1011.7 1006.8 998.7 DAY 15 22 23 9 4 30 10 4 1 2 4 9 MEAN QFF PRESSURE IN HPA 1020.0 1022.2 1016.5 1012.4 1014.3 1008.2 1006.6 1007.8 1014.8 1015.8 1021.9 1020.1 1015.0 MAX. QFF PRESSURE IN HPA 1033.8 1031.4 1035.6 1020.4 1024.1 1015.8 1013.8 1015.3 1024.3 1026.3 1037.1 1032.0 1037.1 DAY 23 7 10 12 15 3 19 21 14 31 7 27 MIN. QFF PRESSURE IN HPA 1006.7 1013.9 1002.9 996.6 1002.8 1001.1 999.2 999.5 1000.1 1005.5 1009.6 1005.9 996.6 DAY 15 22 23 9 4 30 10 12 1 2 4 9 ======================================================================================================================= TEHRAN 2002,MAY M.(S & A) STATION MORAVEH TAPPEH (40721) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 37 54 N LONGITUDE 55 57 E DATA PROCESSING CENTER ELEVATION 460.0 M MEANS AND EXTREMES FOR THE YEAR 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.1 4.9 10.9 17.4 21.5 28.6 27.9 28.4 24.2 18.5 14.8 11.1 17.8 MINIMUN AIR TEMPERATURE (C) 2.8 1.4 6.9 12.8 16.5 22.2 23.1 23.9 19.7 14.0 10.9 8.0 13.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 1 2 25 30 27 8 1 0 0 94 DAYS WITH MINIMUM TEMP. <=-4 0 2 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH FREEZING MIN.<= 0 4 13 3 0 0 0 0 0 0 0 0 0 20 TEMPERATURE RECORDS LOWEST(C) -1.0 -6.6 -1.8 4.4 8.2 16.4 20.8 19.0 14.4 5.2 5.6 2.2 -6.6 DAY 14 16 2 1 3 1 25 5 12 9 30 2 MAXIMUM AIR TEMPERATURE (C) 8.3 9.3 15.4 22.4 27.0 35.1 33.6 34.0 29.8 24.0 19.9 14.9 22.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 4 7 29 28 28 15 5 0 1 118 DAYS WITH MAXIMUM TEMP. <= 0 0 1 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS HIGHEST(C) 15.4 23.0 30.0 31.6 36.8 39.4 38.0 40.6 40.4 33.4 28.0 32.0 40.6 DAY 30 7 29 14 21 23 11 31 1 1 1 11 DIF. BETWEEN (MAX.-MIN.) (C) 5.5 7.9 8.5 9.6 10.5 12.9 10.5 10.1 10.1 10.0 9.0 6.9 9.3 MEAN DAILY TEMP. (MDT) (C) 5.5 5.3 11.2 17.6 21.7 28.6 28.4 29.0 24.7 19.0 15.4 11.5 18.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 1.4 19.3 61.9 229.5 229.0 247.3 116.2 33.3 2.3 3.5 943.9 HEATING DEG. DAYS(BASE 18 0C) 386.4 354.6 195.2 63.6 18.3 0.0 0.0 0.0 0.0 43.8 90.6 217.1 1369.5 DEWPOINT (MEAN C) 0.5 -0.5 3.2 9.9 10.5 13.2 17.2 17.9 13.4 7.2 7.2 4.5 8.7 MIXING RATIO (G/KG) 4.16 3.95 5.18 8.22 8.55 10.42 13.21 14.04 10.53 7.00 6.71 5.58 8.13 VAPOUR PRESSURE (HPA) 6.41 6.09 7.92 12.53 13.02 15.79 19.90 21.15 15.98 10.74 10.32 8.62 12.37 SATURATION DEF. (HPA) 2.58 3.20 6.18 8.52 13.77 24.53 18.56 18.55 15.22 11.56 7.10 5.42 11.27 RELATIVE HUMIDITY (MEAN %) 74 72 63 65 53 43 55 57 55 53 64 69 60 RELATIVE HUMIDITY (MAX. %) 88 88 77 80 71 63 73 76 72 69 82 84 77 RELATIVE HUMIDITY (MIN. %) 61 55 48 49 39 26 37 39 37 38 50 54 44 RELATIVE HUMIDITY (MEAN% 03UTC) 75 78 68 71 63 56 68 68 66 61 73 72 68 RELATIVE HUMIDITY (MEAN% 09UTC) 71 67 58 56 45 31 44 46 42 42 56 65 52 RELATIVE HUMIDITY (MEAN% 15UTC) 75 71 63 67 47 31 43 53 51 48 61 70 57 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 61.0 47.7 43.8 42.4 39.6 18.1 6.6 53.6 8.9 23.7 14.6 14.3 374.3 DAYS WITH PRECIPITATION >=10 1 1 2 2 2 1 0 3 0 1 0 0 13 DAYS WITH PRECIPITATION >= 5 6 4 4 3 4 2 0 3 0 2 2 1 31 DAYS WITH PRECIPITATION >= 1 11 9 6 4 5 3 2 5 4 4 2 4 59 DAYS WITH PRECIPITATION 15 14 9 5 9 7 3 7 5 9 4 6 93 GREATEST DAILY PRECIPITATION 14.9 10.0 11.2 19.0 13.0 11.0 3.6 19.0 4.4 10.0 8.0 6.0 19.0 DAY 6 8 19 24 1