STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.3 5.8 10.1 16.1 21.4 24.9 27.4 27.9 25.1 17.9 13.8 9.9 17.4 MINIMUN AIR TEMPERATURE (C) 3.7 1.5 5.8 10.1 16.2 19.6 22.0 21.4 20.4 14.9 9.4 5.1 12.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 11 23 22 17 0 0 0 74 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 2 10 0 0 0 0 0 0 0 0 0 1 13 TEMPERATURE RECORDS LOWEST(C) -2.0 -3.0 1.0 3.0 11.0 16.0 17.0 18.0 16.0 9.0 4.0 0.0 -3.0 DAY 31 1 14 4 1 8 1 18 26 31 25 28 MAXIMUM AIR TEMPERATURE (C) 12.2 8.8 13.4 19.2 24.1 27.1 29.4 31.0 27.7 20.3 16.4 13.8 20.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 3 14 27 11 0 0 0 57 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 27.0 15.0 23.0 27.0 32.0 30.0 32.0 33.0 32.0 28.0 22.0 21.0 33.0 DAY 23 16 11 25 23 16 12 23 3 4 13 6 DIF. BETWEEN (MAX.-MIN.) (C) 8.5 7.3 7.6 9.1 7.9 7.5 7.4 9.6 7.3 5.4 7.0 8.7 7.8 MEAN DAILY TEMP. (MDT) (C) 7.9 5.1 9.6 14.6 20.1 23.3 25.7 26.2 24.0 17.6 12.9 9.5 16.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 12.0 71.5 145.5 161.5 95.0 7.0 0.0 0.0 492.5 HEATING DEG. DAYS(BASE 18 0C) 312.5 360.5 260.5 108.5 3.5 0.0 0.0 0.0 0.0 38.5 153.0 265.0 1502.0 DEWPOINT (MEAN C) 5.3 2.8 6.9 12.5 17.6 20.5 22.7 23.0 21.4 16.3 11.5 7.3 14.0 MIXING RATIO (G/KG) 5.56 4.66 6.23 9.14 12.70 15.25 17.65 17.83 16.14 11.70 8.47 6.43 10.98 VAPOUR PRESSURE (HPA) 9.04 7.61 10.11 14.73 20.30 24.23 27.85 28.19 25.68 18.79 13.71 10.45 17.56 SATURATION DEF. (HPA) 2.23 1.78 2.63 4.04 5.56 7.56 9.01 10.08 6.84 2.14 2.25 2.08 4.68 RELATIVE HUMIDITY (MEAN %) 83 83 82 81 80 78 76 76 81 91 87 85 82 RELATIVE HUMIDITY (MAX. %) 98 97 95 96 94 91 91 94 96 99 99 98 96 RELATIVE HUMIDITY (MIN. %) 68 70 71 69 71 68 68 65 71 82 74 70 71 RELATIVE HUMIDITY (MEAN% 03UTC) 97 96 94 96 94 90 91 93 96 99 98 98 95 RELATIVE HUMIDITY (MEAN% 09UTC) 73 78 74 75 75 74 72 68 75 85 80 75 75 RELATIVE HUMIDITY (MEAN% 15UTC) 86 83 83 80 80 75 74 76 80 91 90 90 82 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 73.7 80.0 46.5 5.2 23.0 19.5 2.1 27.3 119.6 243.5 56.8 88.0 785.2 DAYS WITH PRECIPITATION >=10 2 3 2 0 2 1 0 1 5 5 1 5 27 DAYS WITH PRECIPITATION >= 5 8 5 2 0 2 1 0 3 6 16 2 5 50 DAYS WITH PRECIPITATION >= 1 10 10 4 3 3 3 1 3 10 20 11 6 84 DAYS WITH PRECIPITATION 14 13 5 4 3 5 6 4 13 22 14 8 111 GREATEST DAILY PRECIPITATION 16.0 20.0 34.0 2.0 11.0 11.0 2.0 16.0 43.0 60.0 32.0 29.0 60.0 DAY 25 20 13 10 10 29 24 7 26 5 10 7 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 1 0 0 0 1 DAYS WITH SNOW OR SLEET 2 3 1 0 0 0 0 0 0 0 0 0 6 DAYS WITH DUST 0 1 3 1 4 0 0 0 0 0 0 1 10 WIND DIRECTION (PREVAILING) 90 90 45 270 270 270 315 315 315 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 3.6 2.4 3.3 5.4 11.6 6.5 7.3 5.7 4.3 9.9 3.7 3.8 7.1 PREVAILING WIND PERCENT 32.3 17.1 16.8 21.3 22.6 35.3 24.5 38.7 34.0 43.2 20.7 27.3 24.0 CALMS PERCENT OF WIND 11.0 7.9 13.5 21.3 16.8 17.3 10.3 6.5 2.0 0.0 4.0 2.6 9.4 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 154 1824 VECTOR WIND DIRECTION (MEAN) 72 319 303 302 300 283 313 286 314 290 355 340 303 VECTOR WIND MAGNITUDE(KNOTS) 1.1 0.5 0.5 0.9 2.5 2.9 2.8 5.0 2.8 5.1 1.6 0.7 1.9 WIND STEADINESES (MEAN %) 36.7 15.2 16.1 32.1 49.0 72.5 59.6 84.7 56.0 67.1 41.0 21.2 44.2 WIND SPEED (MEAN KNOTS) 3.0 3.3 3.1 2.8 5.1 4.0 4.7 5.9 5.0 7.6 3.9 3.3 4.3 FASTEST WIND DIRECTION 360 270 270 310 270 270 310 270 50 270 310 270 270 FASTEST WIND SPEED (KNOTS) 30 24 37 13 30 30 18 30 24 37 37 18 37 DAY 25 7 12 20 20 26 24 4 13 8 9 6 DAYS WITH SKY CLEAR (0-2)/8 10 6 6 10 8 12 14 19 8 0 8 10 111 DAYS WITH P.CLOUDY (3-6)/8 10 6 9 13 13 10 14 8 9 7 9 10 118 DAYS WITH CLOUDY (7-8)/8 11 16 16 7 10 8 3 4 13 24 13 11 136 DAYS WITH VISIBILITY =< 2 KM 14 13 10 0 4 1 0 2 6 16 10 7 83 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1022.2 1025.3 1020.3 1018.1 1014.6 1012.9 1010.7 1012.1 1016.1 1018.7 1021.5 1022.2 1017.9 MAX. QFE PRESSURE IN HPA 1037.9 1036.9 1034.2 1027.4 1025.4 1022.4 1018.6 1016.3 1024.4 1031.2 1034.5 1033.5 1037.9 DAY-HOUR 30-15 7-15 3- 6 4- 6 29- 9 28- 3 24- 9 16- 3 26- 3 31- 6 1- 6 7- 6 MIN. QFE PRESSURE IN HPA 993.9 1014.6 1004.1 1005.8 1003.1 1001.7 1003.4 1002.8 1007.5 1003.7 1011.9 1003.4 993.9 DAY-HOUR 23-15 16- 3 12- 3 27- 6 24- 3 2-12 30-15 1- 3 11- 9 4- 9 13-12 14-12 MEAN QNH PRESSURE IN HPA 1019.3 1022.4 1017.5 1015.3 1011.7 1010.1 1007.9 1009.2 1013.3 1015.8 1018.7 1019.4 1015.1 MAX. QNH PRESSURE IN HPA 1035.0 1034.0 1031.3 1024.6 1022.6 1019.6 1015.8 1013.5 1021.6 1028.3 1031.6 1030.6 1035.0 DAY-HOUR 30-15 7-15 3- 6 4- 6 29- 9 28- 3 24- 9 16- 3 26- 3 31- 6 1- 6 7- 6 MIN. QNH PRESSURE IN HPA 991.1 1011.8 1001.3 1003.0 1000.3 998.9 1000.6 1000.0 1004.7 1000.9 1009.1 1000.6 991.1 DAY-HOUR 23-15 16- 3 12- 3 27- 6 24- 3 2-12 30-15 1- 3 11- 9 4- 9 13-12 14-12 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 1022.6 1025.4 1020.3 1018.3 1014.6 1013.1 1011.1 1012.3 1016.7 1018.5 1021.9 1022.5 1018.1 MAX. QFE PRESSURE IN HPA 1037.3 1036.6 1033.9 1026.8 1024.0 1022.4 1018.6 1016.3 1024.4 1030.5 1033.9 1031.8 1037.3 DAY 31 8 3 4 30 28 25 16 26 31 1 7 MIN. QFE PRESSURE IN HPA 1001.0 1014.6 1004.1 1007.5 1003.1 1004.7 1004.1 1002.8 1008.5 1005.8 1014.6 1005.5 1001.0 DAY 23 16 12 27 24 2 30 1 11 4 27 14 MEAN QNH PRESSURE IN HPA 1019.8 1022.5 1017.5 1015.5 1011.8 1010.3 1008.3 1009.5 1013.9 1015.7 1019.1 1019.7 1015.3 MAX. QNH PRESSURE IN HPA 1034.4 1033.7 1031.0 1024.0 1021.2 1019.6 1015.8 1013.5 1021.6 1027.6 1031.0 1028.9 1034.4 DAY 31 8 3 4 30 28 25 16 26 31 1 7 MIN. QNH PRESSURE IN HPA 998.2 1011.8 1001.3 1004.7 1000.3 1001.9 1001.3 1000.0 1005.7 1003.0 1011.8 1002.7 998.2 DAY 23 16 12 27 24 2 30 1 11 4 27 14 MEAN QFF PRESSURE IN HPA 1019.9 1022.7 1017.7 1015.8 1012.1 1010.7 1008.7 1009.9 1014.3 1016.0 1019.3 1019.9 1015.6 MAX. QFF PRESSURE IN HPA 1034.6 1033.9 1031.3 1024.2 1021.5 1019.9 1016.2 1013.9 1021.9 1027.9 1031.3 1029.2 1034.6 DAY 31 8 3 4 30 28 25 16 26 31 1 7 MIN. QFF PRESSURE IN HPA 998.5 1012.0 1001.6 1005.0 1000.7 1002.3 1001.7 1000.4 1006.1 1003.4 1012.1 1003.0 998.5 DAY 23 16 12 27 24 2 30 1 11 4 27 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1023.1 1025.9 1020.8 1018.8 1015.0 1013.4 1011.4 1012.6 1016.7 1019.2 1022.4 1023.2 1018.5 MAX. QFE PRESSURE IN HPA 1037.3 1036.6 1034.2 1027.4 1025.1 1022.4 1018.0 1016.3 1023.7 1031.2 1034.5 1033.5 1037.3 DAY 31 8 3 4 29 28 24 16 26 31 1 7 MIN. QFE PRESSURE IN HPA 1000.4 1015.9 1004.4 1005.8 1006.8 1004.7 1005.1 1005.8 1008.1 1005.8 1014.9 1007.5 1000.4 DAY 23 16 12 27 24 2 23 1 11 4 27 14 MEAN QNH PRESSURE IN HPA 1020.3 1023.0 1018.0 1015.9 1012.2 1010.6 1008.5 1009.8 1013.9 1016.3 1019.5 1020.3 1015.7 MAX. QNH PRESSURE IN HPA 1034.4 1033.7 1031.3 1024.6 1022.3 1019.6 1015.2 1013.5 1020.9 1028.3 1031.6 1030.6 1034.4 DAY 31 8 3 4 29 28 24 16 26 31 1 7 MIN. QNH PRESSURE IN HPA 997.6 1013.1 1001.6 1003.0 1004.0 1001.9 1002.3 1003.0 1005.3 1003.0 1012.1 1004.7 997.6 DAY 23 16 12 27 24 2 23 1 11 4 27 14 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1022.0 1025.3 1020.4 1018.2 1014.9 1013.2 1011.1 1012.3 1016.2 1018.4 1021.1 1021.9 1017.9 MAX. QFE PRESSURE IN HPA 1036.2 1035.6 1033.5 1027.1 1025.4 1022.4 1018.6 1016.3 1023.4 1029.8 1033.5 1033.5 1036.2 DAY 30 8 3 4 29 28 24 16 26 31 1 7 MIN. QFE PRESSURE IN HPA 998.0 1015.9 1004.7 1007.1 1006.8 1003.7 1004.4 1006.1 1007.5 1003.7 1013.9 1004.4 998.0 DAY 23 16 12 27 19 2 30 1 11 4 13 14 MEAN QNH PRESSURE IN HPA 1019.2 1022.5 1017.6 1015.3 1012.1 1010.4 1008.3 1009.5 1013.3 1015.6 1018.3 1019.0 1015.1 MAX. QNH PRESSURE IN HPA 1033.3 1032.7 1030.6 1024.3 1022.6 1019.6 1015.8 1013.5 1020.6 1026.9 1030.6 1030.6 1033.3 DAY 30 8 3 4 29 28 24 16 26 31 1 7 MIN. QNH PRESSURE IN HPA 995.2 1013.1 1001.9 1004.3 1004.0 1000.9 1001.6 1003.3 1004.7 1000.9 1011.1 1001.6 995.2 DAY 23 16 12 27 19 2 30 1 11 4 13 14 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 1021.4 1024.9 1019.9 1017.7 1014.2 1012.5 1010.3 1011.7 1015.5 1018.3 1020.8 1021.7 1017.4 MAX. QFE PRESSURE IN HPA 1036.9 1035.6 1032.5 1026.4 1025.1 1022.0 1018.3 1015.6 1023.0 1030.5 1033.5 1032.2 1036.9 DAY 30 7 3 1 29 28 24 16 27 31 1 7 MIN. QFE PRESSURE IN HPA 996.3 1015.9 1006.4 1008.5 1004.7 1001.7 1003.7 1005.8 1007.5 1005.1 1011.9 1003.4 996.3 DAY 23 16 11 27 19 2 30 1 11 4 13 14 MEAN QNH PRESSURE IN HPA 1018.6 1022.0 1017.1 1014.9 1011.3 1009.7 1007.5 1008.9 1012.6 1015.5 1017.9 1018.9 1014.6 MAX. QNH PRESSURE IN HPA 1034.0 1032.7 1029.6 1023.6 1022.3 1019.2 1015.5 1012.8 1020.2 1027.6 1030.6 1029.3 1034.0 DAY 30 7 3 1 29 28 24 16 27 31 1 7 MIN. QNH PRESSURE IN HPA 993.5 1013.1 1003.6 1005.7 1001.9 998.9 1000.9 1003.0 1004.7 1002.3 1009.1 1000.6 993.5 DAY 23 16 11 27 19 2 30 1 11 4 13 14 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.8 1025.1 1020.3 1017.7 1014.2 1012.4 1009.7 1011.5 1015.5 1019.0 1021.4 1022.0 1017.5 MAX. QFE PRESSURE IN HPA 1037.9 1036.9 1032.5 1026.1 1025.1 1022.0 1018.0 1015.2 1023.7 1031.2 1033.5 1033.5 1037.9 DAY 30 7 2 4 29 27 24 16 27 31 1 31 MIN. QFE PRESSURE IN HPA 993.9 1015.9 1006.8 1009.1 1004.1 1003.7 1003.4 1005.8 1009.1 1006.4 1012.5 1003.4 993.9 DAY 23 16 11 25 23 1 30 1 10 4 13 14 MEAN QNH PRESSURE IN HPA 1018.9 1022.2 1017.4 1014.9 1011.4 1009.5 1006.9 1008.7 1012.7 1016.2 1018.5 1019.1 1014.7 MAX. QNH PRESSURE IN HPA 1035.0 1034.0 1029.6 1023.3 1022.3 1019.2 1015.2 1012.4 1020.9 1028.3 1030.6 1030.6 1035.0 DAY 30 7 2 4 29 27 24 16 27 31 1 31 MIN. QNH PRESSURE IN HPA 991.1 1013.1 1004.0 1006.3 1001.3 1000.9 1000.6 1003.0 1006.3 1003.6 1009.7 1000.6 991.1 DAY 23 16 11 25 23 1 30 1 10 4 13 14 MEAN QFF PRESSURE IN HPA 1019.1 1022.4 1017.7 1015.2 1011.7 1009.9 1007.3 1009.1 1013.1 1016.5 1018.8 1019.4 1015.0 MAX. QFF PRESSURE IN HPA 1035.2 1034.2 1029.9 1023.5 1022.6 1019.6 1015.6 1012.8 1021.2 1028.6 1030.9 1030.9 1035.2 DAY 30 7 2 4 29 27 24 16 27 31 1 31 MIN. QFF PRESSURE IN HPA 991.4 1013.3 1004.3 1006.6 1001.7 1001.3 1001.0 1003.4 1006.7 1004.0 1010.0 1000.9 991.4 DAY 23 16 11 25 23 1 30 1 10 4 30 14 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.6 9.6 10.3 12.9 18.2 22.6 26.1 26.9 23.8 20.6 12.3 8.6 16.7 MINIMUN AIR TEMPERATURE (C) 4.2 5.1 7.0 10.8 14.7 19.3 22.0 21.2 19.0 15.7 8.1 4.3 12.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 8 28 21 9 4 0 0 70 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 2 1 0 0 0 0 0 0 0 0 0 3 6 TEMPERATURE RECORDS LOWEST(C) 0.0 0.0 1.0 7.0 8.0 16.0 19.0 19.0 14.0 10.0 1.0 -1.0 -1.0 DAY 6 15 6 15 12 2 14 13 20 28 16 12 MAXIMUM AIR TEMPERATURE (C) 12.1 14.7 15.5 16.4 22.1 25.9 29.8 31.7 28.3 26.1 17.5 14.0 21.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 2 0 16 28 8 1 0 0 56 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.0 24.0 28.0 31.0 34.0 29.0 34.0 33.0 31.0 30.0 28.0 23.0 34.0 DAY 22 20 31 1 19 24 29 2 1 1 4 6 DIF. BETWEEN (MAX.-MIN.) (C) 7.9 9.6 8.5 5.6 7.4 6.6 7.8 10.5 9.3 10.4 9.4 9.7 8.6 MEAN DAILY TEMP. (MDT) (C) 8.1 9.9 11.3 13.6 18.4 22.6 25.9 26.5 23.6 20.9 12.8 9.1 16.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.5 16.0 52.0 152.0 169.5 81.0 25.5 0.0 0.0 497.5 HEATING DEG. DAYS(BASE 18 0C) 305.5 235.0 212.0 136.5 38.5 0.0 0.0 0.0 0.0 3.0 161.5 274.5 1366.5 DEWPOINT (MEAN C) 6.6 7.3 8.0 11.0 16.0 19.5 22.6 22.8 21.2 18.8 11.0 7.3 14.3 MIXING RATIO (G/KG) 6.03 6.39 6.76 8.18 11.55 14.38 17.44 17.63 15.95 13.67 8.52 6.40 11.08 VAPOUR PRESSURE (HPA) 9.82 10.33 10.92 13.23 18.48 22.87 27.58 27.91 25.46 21.94 13.81 10.45 17.73 SATURATION DEF. (HPA) 1.53 1.88 2.08 1.93 3.11 4.95 6.75 8.27 4.70 3.11 1.42 1.01 3.40 RELATIVE HUMIDITY (MEAN %) 88 87 87 89 88 84 82 80 87 90 93 93 87 RELATIVE HUMIDITY (MAX. %) 99 99 99 99 100 98 97 99 100 100 100 100 99 RELATIVE HUMIDITY (MIN. %) 75 72 70 76 73 69 67 61 71 72 76 75 71 RELATIVE HUMIDITY (MEAN% 03UTC) 99 99 96 96 95 93 93 93 97 99 99 100 97 RELATIVE HUMIDITY (MEAN% 09UTC) 81 77 75 81 78 73 71 65 73 75 79 78 76 RELATIVE HUMIDITY (MEAN% 15UTC) 90 85 82 86 82 76 74 69 80 88 92 93 83 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 47.6 75.5 109.0 70.2 31.0 24.3 29.5 50.0 34.0 24.1 76.1 70.5 641.8 DAYS WITH PRECIPITATION >=10 1 3 5 2 1 0 2 1 2 1 4 2 24 DAYS WITH PRECIPITATION >= 5 4 4 7 3 1 3 2 1 3 1 5 4 38 DAYS WITH PRECIPITATION >= 1 7 6 8 7 5 5 5 2 4 1 8 6 64 DAYS WITH PRECIPITATION 10 6 9 11 10 9 6 2 5 4 11 6 89 GREATEST DAILY PRECIPITATION 18.0 28.0 38.0 41.0 21.0 9.0 11.0 46.0 13.0 24.0 23.0 35.0 46.0 DAY 17 13 5 24 11 21 13 25 18 29 14 11 DAY WITH THUNDER STORM 0 0 0 0 2 4 1 1 1 2 0 0 11 DAYS WITH SNOW OR SLEET 0 0 1 0 0 0 0 0 0 0 0 1 2 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 3.1 6.7 5.7 4.3 3.4 3.8 2.8 2.2 2.6 2.4 2.5 2.8 3.4 PREVAILING WIND PERCENT 29.0 33.3 30.2 49.2 39.9 37.5 34.3 38.7 45.8 35.5 35.4 28.6 36.7 CALMS PERCENT OF WIND 9.0 11.5 9.7 5.0 9.3 10.4 13.7 7.3 6.7 10.9 7.5 6.5 8.9 NO. OF WIND OBSERVATION 155 174 248 240 248 240 248 248 240 248 240 248 2777 VECTOR WIND DIRECTION (MEAN) 312 295 308 282 290 291 284 280 292 306 292 300 292 VECTOR WIND MAGNITUDE(KNOTS) 0.9 2.0 1.4 2.3 1.7 1.9 1.7 1.6 1.7 1.1 1.3 0.7 1.5 WIND STEADINESES (MEAN %) 36.0 51.3 38.9 65.7 63.0 65.5 77.3 72.7 65.4 47.8 54.2 25.9 53.6 WIND SPEED (MEAN KNOTS) 2.5 3.9 3.6 3.5 2.7 2.9 2.2 2.2 2.6 2.3 2.4 2.7 2.8 FASTEST WIND DIRECTION 300 270 270 270 270 270 270 360 270 270 270 260 270 FASTEST WIND SPEED (KNOTS) 22 37 37 24 18 13 9 13 37 18 30 36 37 DAY 19 13 2 24 21 9 9 15 25 26 22 3 DAYS WITH SKY CLEAR (0-2)/8 7 7 2 3 10 12 15 26 15 19 10 11 137 DAYS WITH P.CLOUDY (3-6)/8 12 10 17 9 10 12 11 3 10 7 9 11 121 DAYS WITH CLOUDY (7-8)/8 12 12 12 18 11 6 5 2 5 5 11 9 108 DAYS WITH VISIBILITY =< 2 KM 4 12 11 10 3 1 2 1 5 0 2 3 54 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1022.0 1016.9 1015.9 1019.6 1014.7 1013.1 1011.6 1013.1 1019.0 1020.9 1025.2 1027.3 1018.3 MAX. QFE PRESSURE IN HPA 1033.2 1029.0 1026.1 1031.8 1032.8 1026.4 1019.0 1022.2 1030.0 1031.0 1041.4 1043.0 1043.0 DAY-HOUR 1- 3 5-15 14- 6 8- 6 11-18 2- 6 13-18 16- 3 18- 3 30-15 14- 6 11- 6 MIN. QFE PRESSURE IN HPA 1014.6 998.3 1002.7 1004.1 1004.4 1002.7 1003.9 1005.1 1007.3 1009.3 1007.6 1017.3 998.3 DAY-HOUR 22- 9 4- 3 1-18 1- 0 9-12 25-18 27-15 24-21 25- 0 6- 0 4- 0 27- 9 MEAN QNH PRESSURE IN HPA 1019.2 1014.1 1013.0 1016.8 1011.8 1010.3 1008.7 1010.2 1016.2 1018.1 1022.3 1024.4 1015.4 MAX. QNH PRESSURE IN HPA 1030.3 1026.1 1023.3 1028.9 1029.9 1023.6 1016.2 1019.4 1027.1 1028.1 1038.5 1040.1 1040.1 DAY-HOUR 1- 3 5-15 14- 6 8- 6 11-18 2- 6 13-18 16- 3 18- 3 30-15 14- 6 11- 6 MIN. QNH PRESSURE IN HPA 1011.8 995.5 999.9 1001.3 1001.6 999.9 1001.1 1002.3 1004.5 1006.5 1004.8 1014.5 995.5 DAY-HOUR 22- 9 4- 3 1-18 1- 0 9-12 25-18 27-15 24-21 25- 0 6- 0 4- 0 27- 9 MEAN QFF PRESSURE IN HPA ****** ****** 1013.3 1017.1 1012.2 1010.7 1009.2 1010.7 1016.6 1018.5 1022.6 1024.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1023.5 1029.2 1030.2 1023.9 1016.5 1019.8 1027.5 1028.4 1038.7 1040.3 ****** DAY-HOUR **-** **-** 14- 9 8- 6 11-18 2- 6 13-18 16- 3 18- 6 30-15 14- 6 11- 6 MIN. QFF PRESSURE IN HPA ****** ****** 1000.2 1001.7 1001.9 1000.3 1001.5 1002.7 1004.9 1006.9 1005.1 1014.8 ****** DAY-HOUR **-** **-** 1-18 1- 0 9-15 25-18 27-15 24-21 25- 0 6- 0 4- 0 27- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 1015.3 1019.1 1014.4 1013.3 1011.2 1012.6 1018.7 1020.3 1024.7 1026.9 ****** MAX. QFE PRESSURE IN HPA ****** ****** 1025.7 1029.1 1031.8 1025.7 1019.0 1021.8 1027.9 1028.1 1041.2 1040.2 ****** DAY ** ** 14 9 12 2 14 16 18 3 17 12 MIN. QFE PRESSURE IN HPA ****** ****** 1002.7 1004.1 1006.1 1003.1 1004.7 1005.3 1007.3 1009.3 1007.6 1018.3 ****** DAY ** ** 22 1 18 25 9 25 25 6 4 27 MEAN QNH PRESSURE IN HPA ****** ****** 1012.5 1016.3 1011.6 1010.4 1008.4 1009.8 1015.8 1017.5 1021.9 1024.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1022.9 1026.2 1028.9 1022.9 1016.2 1019.0 1025.0 1025.2 1038.3 1037.3 ****** DAY ** ** 14 9 12 2 14 16 18 3 17 12 MIN. QNH PRESSURE IN HPA ****** ****** 999.9 1001.3 1003.3 1000.3 1001.9 1002.5 1004.5 1006.5 1004.8 1015.5 ****** DAY ** ** 22 1 18 25 9 25 25 6 4 27 MEAN QFF PRESSURE IN HPA ****** ****** 1012.8 1016.6 1011.9 1010.8 1008.8 1010.2 1016.2 1017.8 1022.1 1024.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1023.1 1026.5 1029.2 1023.2 1016.5 1019.4 1025.4 1025.6 1038.5 1037.5 ****** DAY ** ** 14 9 12 2 14 16 18 3 17 12 MIN. QFF PRESSURE IN HPA ****** ****** 1000.2 1001.7 1003.7 1000.7 1002.3 1002.9 1004.9 1006.9 1005.1 1015.7 ****** DAY ** ** 22 1 18 25 9 25 25 6 4 27 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1022.3 1017.1 1016.1 1020.0 1014.7 1013.6 1011.9 1013.5 1019.5 1021.2 1025.6 1028.0 1018.6 MAX. QFE PRESSURE IN HPA 1033.2 1026.8 1025.1 1030.1 1031.8 1026.1 1019.0 1022.2 1030.0 1028.4 1041.0 1039.6 1041.0 DAY 1 14 14 8 12 2 14 16 18 3 17 12 MIN. QFE PRESSURE IN HPA 1016.3 998.3 1004.1 1004.8 1005.8 1005.1 1005.2 1009.5 1009.2 1009.9 1008.0 1017.6 998.3 DAY 15 4 22 1 18 25 27 8 25 6 4 27 MEAN QNH PRESSURE IN HPA 1019.4 1014.3 1013.3 1017.1 1011.9 1010.8 1009.1 1010.7 1016.7 1018.3 1022.8 1025.1 1015.8 MAX. QNH PRESSURE IN HPA 1030.3 1024.0 1022.3 1027.2 1028.9 1023.3 1016.2 1019.4 1027.1 1025.5 1038.1 1036.7 1038.1 DAY 1 14 14 8 12 2 14 16 18 3 17 12 MIN. QNH PRESSURE IN HPA 1013.5 995.5 1001.3 1002.0 1003.0 1002.3 1002.4 1006.7 1006.4 1007.1 1005.2 1014.8 995.5 DAY 15 4 22 1 18 25 27 8 25 6 4 27 MEAN QFF PRESSURE IN HPA 1019.7 1014.6 1013.5 1017.4 1012.2 1011.2 1009.5 1011.1 1017.1 1018.7 1023.0 1025.4 1016.1 MAX. QFF PRESSURE IN HPA 1030.6 1024.2 1022.5 1027.5 1029.2 1023.6 1016.5 1019.8 1027.5 1025.9 1038.3 1036.9 1038.3 DAY 1 14 14 8 12 2 14 16 18 3 17 12 MIN. QFF PRESSURE IN HPA 1013.7 995.8 1001.6 1002.3 1003.4 1002.7 1002.8 1007.1 1006.8 1007.4 1005.5 1015.0 995.8 DAY 22 4 22 1 18 25 27 8 25 6 4 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1023.0 1017.9 1016.8 1020.4 1015.1 1013.8 1012.2 1014.0 1020.0 1022.0 1026.1 1028.5 1019.1 MAX. QFE PRESSURE IN HPA 1031.8 1028.1 1026.1 1031.8 1031.8 1026.4 1019.0 1022.1 1030.0 1030.0 1041.4 1043.0 1043.0 DAY 1 14 14 8 12 2 14 26 18 3 14 11 MIN. QFE PRESSURE IN HPA 1016.3 1001.0 1005.4 1006.1 1004.7 1005.1 1005.7 1009.6 1010.6 1011.6 1009.6 1017.8 1001.0 DAY 22 4 22 1 18 25 27 8 25 6 4 27 MEAN QNH PRESSURE IN HPA 1020.2 1015.1 1013.9 1017.5 1012.3 1011.0 1009.4 1011.1 1017.1 1019.2 1023.3 1025.6 1016.3 MAX. QNH PRESSURE IN HPA 1028.9 1025.2 1023.3 1028.9 1028.9 1023.6 1016.2 1019.3 1027.1 1027.1 1038.5 1040.1 1040.1 DAY 1 14 14 8 12 2 14 26 18 3 14 11 MIN. QNH PRESSURE IN HPA 1013.5 998.2 1002.6 1003.3 1001.9 1002.3 1002.9 1006.8 1007.8 1008.8 1006.8 1015.0 998.2 DAY 22 4 22 1 18 25 27 8 25 6 4 27 MEAN QFF PRESSURE IN HPA ****** ****** 1014.2 1017.8 1012.6 1011.4 1009.8 1011.6 1017.5 1019.5 1023.5 1025.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1023.5 1029.2 1029.2 1023.9 1016.5 1019.7 1027.5 1027.5 1038.7 1040.3 ****** DAY ** ** 14 8 12 2 14 26 18 3 14 11 MIN. QFF PRESSURE IN HPA ****** ****** 1002.9 1003.7 1002.3 1002.7 1003.3 1007.2 1008.2 1009.2 1007.1 1015.2 ****** DAY ** ** 22 1 18 25 27 8 25 6 4 27 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1021.8 1017.0 1016.5 1019.7 1015.1 1013.6 1011.9 1013.6 1019.3 1021.1 1025.0 1027.1 1018.5 MAX. QFE PRESSURE IN HPA 1031.5 1027.8 1026.1 1030.8 1030.1 1025.7 1018.3 1021.3 1028.8 1029.9 1040.9 1043.0 1043.0 DAY 17 14 14 8 12 2 14 16 18 30 14 11 MIN. QFE PRESSURE IN HPA 1014.6 1000.4 1006.1 1006.8 1004.7 1005.4 1006.1 1008.1 1010.4 1011.5 1010.2 1017.3 1000.4 DAY 22 4 22 1 18 25 27 24 15 6 4 27 MEAN QNH PRESSURE IN HPA 1018.9 1014.1 1013.7 1016.8 1012.3 1010.8 1009.1 1010.8 1016.5 1018.3 1022.2 1024.3 1015.7 MAX. QNH PRESSURE IN HPA 1028.6 1024.9 1023.3 1027.9 1027.2 1022.9 1015.5 1018.5 1025.9 1027.0 1038.0 1040.1 1040.1 DAY 17 14 14 8 12 2 14 16 18 30 14 11 MIN. QNH PRESSURE IN HPA 1011.8 997.6 1003.3 1004.0 1001.9 1002.6 1003.3 1005.3 1007.6 1008.7 1007.4 1014.5 997.6 DAY 22 4 22 1 18 25 27 24 15 6 4 27 MEAN QFF PRESSURE IN HPA ****** ****** 1013.9 1017.1 1012.7 1011.2 1009.5 1011.3 1016.9 1018.7 1022.4 1024.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1023.5 1028.2 1027.5 1023.2 1015.8 1018.9 1026.3 1027.4 1038.2 1040.3 ****** DAY ** ** 14 8 12 3 14 16 18 30 14 11 MIN. QFF PRESSURE IN HPA ****** ****** 1003.6 1004.4 1002.3 1003.0 1003.7 1005.7 1008.0 1009.1 1007.7 1014.8 ****** DAY ** ** 22 1 18 25 27 24 15 6 4 27 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1021.4 1016.3 1015.6 1019.1 1014.5 1012.8 1011.4 1012.8 1018.6 1020.7 1024.7 1026.4 1017.8 MAX. QFE PRESSURE IN HPA 1030.8 1027.1 1024.4 1030.8 1030.1 1024.7 1017.3 1020.0 1026.9 1030.4 1040.3 1042.5 1042.5 DAY 17 14 14 8 11 2 14 15 18 30 14 11 MIN. QFE PRESSURE IN HPA 1014.6 1000.4 1005.4 1006.1 1004.4 1004.4 1005.4 1006.7 1009.8 1011.3 1010.1 1017.4 1000.4 DAY 22 4 1 1 9 24 27 24 15 28 4 27 MEAN QNH PRESSURE IN HPA 1018.5 1013.5 1012.7 1016.3 1011.7 1009.9 1008.6 1009.9 1015.7 1017.8 1021.8 1023.6 1015.0 MAX. QNH PRESSURE IN HPA 1027.9 1024.3 1021.6 1027.9 1027.2 1021.9 1014.5 1017.2 1024.1 1027.5 1037.4 1039.6 1039.6 DAY 17 14 14 8 11 2 14 15 18 30 14 11 MIN. QNH PRESSURE IN HPA 1011.8 997.6 1002.6 1003.3 1001.6 1001.6 1002.6 1003.9 1007.0 1008.5 1007.3 1014.6 997.6 DAY 22 4 1 1 9 24 27 24 15 28 4 27 MEAN QFF PRESSURE IN HPA ****** ****** 1013.0 1016.6 1012.0 1010.3 1009.0 1010.4 1016.1 1018.2 1022.1 1023.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1021.8 1028.2 1027.5 1022.2 1014.9 1017.6 1024.4 1027.9 1037.6 1039.8 ****** DAY ** ** 14 8 11 3 14 15 18 30 14 11 MIN. QFF PRESSURE IN HPA ****** ****** 1002.9 1003.6 1002.0 1002.0 1003.0 1004.3 1007.4 1008.8 1007.7 1014.8 ****** DAY ** ** 1 1 9 24 27 24 15 28 4 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.8 1017.1 1015.7 1019.1 1014.3 1012.3 1011.1 1012.5 1018.3 1020.8 1025.3 1027.0 1017.9 MAX. QFE PRESSURE IN HPA 1031.8 1029.0 1024.0 1029.5 1030.8 1025.4 1017.6 1021.2 1026.3 1031.0 1041.3 1042.2 1042.2 DAY 17 5 14 8 11 1 13 15 18 30 14 11 MIN. QFE PRESSURE IN HPA 1015.2 1003.1 1004.7 1010.1 1004.4 1003.7 1003.9 1006.0 1010.5 1011.5 1011.2 1018.3 1003.1 DAY 22 3 1 10 9 5 27 24 24 28 3 10 MEAN QNH PRESSURE IN HPA 1019.0 1014.2 1012.8 1016.3 1011.5 1009.5 1008.3 1009.7 1015.5 1018.0 1022.5 1024.1 1015.1 MAX. QNH PRESSURE IN HPA 1028.9 1026.1 1021.2 1026.6 1027.9 1022.6 1014.8 1018.4 1023.5 1028.1 1038.4 1039.3 1039.3 DAY 17 5 14 8 11 1 13 15 18 30 14 11 MIN. QNH PRESSURE IN HPA 1012.4 1000.3 1001.9 1007.3 1001.6 1000.9 1001.1 1003.2 1007.7 1008.7 1008.4 1015.5 1000.3 DAY 22 3 1 10 9 5 27 24 24 28 3 10 MEAN QFF PRESSURE IN HPA 1019.2 1014.5 1013.1 1016.6 1011.8 1009.9 1008.7 1010.1 1015.9 1018.3 1022.8 1024.4 1015.4 MAX. QFF PRESSURE IN HPA 1029.2 1026.4 1021.4 1026.9 1028.2 1022.9 1015.1 1018.8 1023.8 1028.4 1038.6 1039.5 1039.5 DAY 17 5 14 8 11 1 13 15 18 30 14 11 MIN. QFF PRESSURE IN HPA 1012.6 1000.5 1002.2 1007.6 1001.9 1001.3 1001.5 1003.6 1008.1 1009.0 1008.7 1015.7 1000.5 DAY 22 3 1 10 9 5 27 24 24 28 4 27 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 1015.8 1019.9 1014.7 1012.8 1011.5 1012.8 1019.0 1021.0 1025.3 1027.2 ****** MAX. QFE PRESSURE IN HPA ****** ****** 1023.7 1028.8 1032.8 1026.1 1019.0 1021.4 1026.4 1030.3 1041.1 1041.7 ****** DAY ** ** 13 8 11 1 13 15 18 30 14 11 MIN. QFE PRESSURE IN HPA ****** ****** 1002.7 1009.8 1004.7 1002.7 1004.4 1005.5 1009.1 1011.5 1009.3 1019.0 ****** DAY ** ** 1 10 18 25 27 24 24 5 3 27 MEAN QNH PRESSURE IN HPA ****** ****** 1013.0 1017.1 1011.8 1010.0 1008.7 1010.0 1016.1 1018.2 1022.4 1024.3 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1020.9 1025.9 1029.9 1023.3 1016.2 1018.6 1023.6 1027.4 1038.2 1038.8 ****** DAY ** ** 13 8 11 1 13 15 18 30 14 11 MIN. QNH PRESSURE IN HPA ****** ****** 999.9 1007.0 1001.9 999.9 1001.6 1002.7 1006.3 1008.7 1006.5 1016.2 ****** DAY ** ** 1 10 18 25 27 24 24 5 3 27 MEAN QFF PRESSURE IN HPA ****** ****** 1013.3 1017.4 1012.2 1010.3 1009.1 1010.4 1016.5 1018.5 1022.7 1024.6 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1021.1 1026.2 1030.2 1023.6 1016.5 1019.0 1023.9 1027.7 1038.4 1039.0 ****** DAY ** ** 13 8 11 2 13 15 18 30 16 11 MIN. QFF PRESSURE IN HPA ****** ****** 1000.2 1007.3 1002.3 1000.3 1002.0 1003.1 1006.7 1009.1 1006.8 1016.4 ****** DAY ** ** 1 10 18 25 27 24 24 5 3 27 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 1015.4 1019.7 1014.7 1012.8 1011.4 1012.8 1018.9 1020.6 1025.0 1027.1 ****** MAX. QFE PRESSURE IN HPA ****** ****** 1023.7 1028.1 1032.5 1026.1 1019.0 1022.0 1027.3 1028.8 1041.0 1041.0 ****** DAY ** ** 13 8 11 2 13 15 17 30 16 11 MIN. QFE PRESSURE IN HPA ****** ****** 1004.1 1011.9 1005.4 1003.7 1004.4 1005.1 1007.8 1010.5 1008.6 1017.6 ****** DAY ** ** 21 19 18 25 27 24 24 5 3 9 MEAN QNH PRESSURE IN HPA ****** ****** 1012.6 1016.9 1011.8 1009.9 1008.5 1010.0 1016.1 1017.8 1022.1 1024.2 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1020.9 1025.2 1029.6 1023.3 1016.2 1019.2 1024.5 1025.9 1038.1 1038.1 ****** DAY ** ** 13 8 11 2 13 15 17 30 16 11 MIN. QNH PRESSURE IN HPA ****** ****** 1001.3 1009.1 1002.6 1000.9 1001.6 1002.3 1005.0 1007.7 1005.8 1014.8 ****** DAY ** ** 21 19 18 25 27 24 24 5 3 9 MEAN QFF PRESSURE IN HPA ****** ****** 1012.8 1017.2 1012.2 1010.3 1009.0 1010.4 1016.5 1018.1 1022.4 1024.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1021.1 1025.5 1029.9 1023.6 1016.5 1019.6 1024.8 1026.2 1038.3 1038.3 ****** DAY ** ** 13 8 11 2 13 15 17 30 16 11 MIN. QFF PRESSURE IN HPA ****** ****** 1001.6 1009.4 1003.0 1001.3 1002.0 1002.7 1005.4 1008.1 1006.1 1015.0 ****** DAY ** ** 21 19 18 25 27 24 24 5 3 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.5 9.8 9.3 13.5 19.0 24.2 26.2 27.3 22.7 17.0 10.8 5.6 16.2 MINIMUN AIR TEMPERATURE (C) 4.5 5.2 5.8 10.8 15.2 19.6 22.7 23.2 19.3 13.4 8.2 2.6 12.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 14 30 31 12 0 0 0 87 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 5 5 TEMPERATURE RECORDS LOWEST(C) 1.0 2.0 1.0 8.0 12.0 15.0 20.0 21.0 14.0 3.0 3.0 -2.0 -2.0 DAY 3 8 10 1 5 2 4 4 26 27 7 25 MAXIMUM AIR TEMPERATURE (C) 13.4 14.4 13.0 16.1 22.8 28.2 29.8 31.4 26.4 21.1 14.4 9.6 20.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 10 19 28 4 0 0 0 61 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 18.0 26.0 21.0 29.0 31.0 33.0 34.0 32.0 26.0 20.0 13.0 34.0 DAY 5 5 12 23 11 21 9 27 1 7 17 2 DIF. BETWEEN (MAX.-MIN.) (C) 8.9 9.2 7.2 5.3 7.6 8.6 7.1 8.2 7.1 7.7 6.2 7.0 7.5 MEAN DAILY TEMP. (MDT) (C) 8.9 9.8 9.4 13.5 19.0 23.9 26.3 27.3 22.9 17.3 11.3 6.1 16.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 5.0 90.5 163.0 195.5 66.5 1.5 0.0 0.0 522.0 HEATING DEG. DAYS(BASE 18 0C) 281.0 230.0 266.0 136.0 15.0 0.0 0.0 0.0 0.0 55.5 200.5 368.0 1552.0 DEWPOINT (MEAN C) 7.3 7.9 7.0 11.7 16.4 21.2 23.4 24.1 20.3 14.0 8.3 3.3 13.7 MIXING RATIO (G/KG) 6.37 6.65 6.25 8.59 11.69 16.04 18.25 19.03 15.11 10.21 6.88 4.76 10.82 VAPOUR PRESSURE (HPA) 10.34 10.75 10.16 13.90 18.74 25.43 28.86 30.07 24.12 16.51 11.20 7.81 17.32 SATURATION DEF. (HPA) 1.02 1.65 1.84 1.70 3.62 5.41 5.62 6.67 4.05 3.61 2.04 1.45 3.22 RELATIVE HUMIDITY (MEAN %) 93 89 87 90 86 85 85 84 88 84 86 86 87 RELATIVE HUMIDITY (MAX. %) 100 100 100 99 99 99 99 98 99 97 97 98 99 RELATIVE HUMIDITY (MIN. %) 76 71 68 76 69 67 69 66 73 66 71 66 70 RELATIVE HUMIDITY (MEAN% 03UTC) 100 98 96 97 95 94 95 95 95 94 94 95 96 RELATIVE HUMIDITY (MEAN% 09UTC) 82 74 75 81 74 71 73 69 76 68 72 72 74 RELATIVE HUMIDITY (MEAN% 15UTC) 93 87 82 86 82 77 80 78 82 80 85 84 83 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 56.4 19.0 125.3 40.1 44.3 5.0 63.5 5.5 204.0 132.0 124.5 118.0 937.6 DAYS WITH PRECIPITATION >=10 3 1 4 1 1 0 3 0 7 3 3 4 30 DAYS WITH PRECIPITATION >= 5 3 1 8 3 3 0 5 0 8 4 5 7 47 DAYS WITH PRECIPITATION >= 1 7 2 10 5 7 2 7 3 11 7 13 12 86 DAYS WITH PRECIPITATION 11 3 12 11 10 3 7 8 14 11 15 14 119 GREATEST DAILY PRECIPITATION 17.0 18.0 34.0 22.0 24.0 4.0 18.0 3.0 60.0 79.0 41.0 30.0 79.0 DAY 18 12 24 11 27 9 25 16 18 24 27 9 DAY WITH THUNDER STORM 1 0 0 0 2 0 4 2 3 0 1 0 13 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 0 0 0 1 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 270 270 270 270 270 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 2.7 3.3 4.0 3.4 3.8 4.0 3.6 3.0 3.5 2.3 3.5 3.4 3.4 PREVAILING WIND PERCENT 31.9 31.3 29.0 34.6 32.3 45.4 47.6 51.2 36.7 27.0 31.3 39.5 36.5 CALMS PERCENT OF WIND 3.2 3.1 1.6 2.1 1.6 0.8 2.8 3.2 5.0 3.2 2.1 3.2 2.7 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 307 306 343 307 301 276 277 280 285 339 301 268 292 VECTOR WIND MAGNITUDE(KNOTS) 0.7 1.1 1.5 1.5 2.1 2.9 2.8 2.4 2.5 0.7 1.1 1.7 1.6 WIND STEADINESES (MEAN %) 23.3 35.5 34.9 45.5 52.5 76.3 77.8 77.4 67.6 21.9 31.4 53.1 45.7 WIND SPEED (MEAN KNOTS) 3.0 3.1 4.3 3.3 4.0 3.8 3.6 3.1 3.7 3.2 3.5 3.2 3.5 FASTEST WIND DIRECTION 270 230 50 270 130 270 50 50 270 50 300 270 270 FASTEST WIND SPEED (KNOTS) 12 16 18 18 37 12 13 28 44 18 20 18 44 DAY 17 1 15 20 7 8 24 16 3 18 1 16 DAYS WITH SKY CLEAR (0-2)/8 9 10 8 3 8 24 10 13 10 10 3 10 118 DAYS WITH P.CLOUDY (3-6)/8 12 10 12 8 17 6 12 17 8 14 11 10 137 DAYS WITH CLOUDY (7-8)/8 10 8 11 19 6 0 9 1 12 7 16 11 110 DAYS WITH VISIBILITY =< 2 KM 4 4 1 3 5 0 0 1 2 0 0 0 20 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1021.6 1017.7 1021.8 1021.3 1016.7 1012.6 1013.1 1013.2 1018.3 1024.4 1026.2 1028.9 1019.6 MAX. QFE PRESSURE IN HPA 1033.9 1029.4 1037.3 1035.0 1024.6 1023.9 1023.0 1020.9 1030.7 1044.0 1040.7 1039.5 1044.0 DAY-HOUR 18- 6 15- 6 9- 6 1- 3 4-18 5- 6 20- 6 31- 6 30-21 26- 6 9- 6 9-15 MIN. QFE PRESSURE IN HPA 1005.6 1002.5 998.4 1005.0 1003.5 1001.8 1004.9 1005.0 1005.2 1010.7 1009.8 1014.4 998.4 DAY-HOUR 11-12 19-15 12-21 20-15 7-18 29-15 15- 0 26-18 9-15 6-21 19-18 31-21 MEAN QNH PRESSURE IN HPA 1018.8 1014.9 1018.9 1018.5 1013.9 1009.7 1010.3 1010.3 1015.4 1021.5 1023.4 1026.0 1016.8 MAX. QNH PRESSURE IN HPA 1031.0 1026.5 1034.4 1032.1 1021.8 1021.1 1020.2 1018.1 1027.8 1041.1 1037.8 1036.6 1041.1 DAY-HOUR 18- 6 15- 6 9- 6 1- 3 4-18 5- 6 20- 6 31- 6 30-21 26- 6 9- 6 9-15 MIN. QNH PRESSURE IN HPA 1002.8 999.7 995.6 1002.2 1000.7 999.0 1002.1 1002.2 1002.4 1007.9 1007.0 1011.6 995.6 DAY-HOUR 11-12 19-15 12-21 20-15 7-18 29-15 15- 0 26-18 9-15 6-21 19-18 31-21 MEAN QFF PRESSURE IN HPA 1019.0 1015.2 1019.2 1018.8 1014.2 1010.1 1010.7 1010.8 1015.8 1021.8 1023.6 1026.3 1017.1 MAX. QFF PRESSURE IN HPA 1031.3 1026.8 1034.6 1032.4 1022.0 1021.4 1020.6 1018.5 1028.2 1041.4 1038.1 1036.8 1041.4 DAY-HOUR 18- 6 15- 6 9- 6 1- 3 4-18 5- 6 20- 6 31- 6 30-21 26- 6 9- 6 9-15 MIN. QFF PRESSURE IN HPA 1003.1 1000.0 996.0 1002.5 1001.1 999.4 1002.5 1002.6 1002.8 1008.2 1007.2 1011.8 996.0 DAY-HOUR 11-12 19-15 12-21 20-15 7-18 29-15 15- 0 26-18 9-15 6-21 23- 3 31-21 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1021.4 1017.5 1020.8 1021.3 1016.2 1012.0 1012.7 1012.9 1017.9 1024.3 1025.8 1028.7 1019.3 MAX. QFE PRESSURE IN HPA 1031.2 1028.2 1035.3 1032.2 1024.1 1021.2 1021.4 1019.6 1027.4 1040.0 1039.7 1036.1 1040.0 DAY 19 13 28 2 28 5 20 31 21 26 28 9 MIN. QFE PRESSURE IN HPA 1008.7 1007.8 999.0 1009.5 1004.9 1005.1 1004.9 1007.8 1007.7 1011.3 1010.5 1016.3 999.0 DAY 31 23 13 21 8 29 15 26 8 7 23 25 MEAN QNH PRESSURE IN HPA 1018.6 1014.7 1017.9 1018.4 1013.4 1009.2 1009.9 1010.0 1015.1 1021.5 1022.9 1025.9 1016.5 MAX. QNH PRESSURE IN HPA 1028.3 1025.3 1032.4 1029.3 1021.3 1018.4 1018.6 1016.8 1024.6 1037.1 1036.8 1033.2 1037.1 DAY 19 13 28 2 28 5 20 31 21 26 28 9 MIN. QNH PRESSURE IN HPA 1005.9 1005.0 996.2 1006.7 1002.1 1002.3 1002.1 1005.0 1004.9 1008.5 1007.7 1013.5 996.2 DAY 31 23 13 21 8 29 15 26 8 7 23 25 MEAN QFF PRESSURE IN HPA 1018.8 1015.0 1018.2 1018.7 1013.8 1009.6 1010.3 1010.5 1015.5 1021.8 1023.2 1026.1 1016.8 MAX. QFF PRESSURE IN HPA 1028.6 1025.6 1032.7 1029.6 1021.6 1018.7 1019.0 1017.2 1024.9 1037.4 1037.0 1033.5 1037.4 DAY 19 16 28 2 28 5 20 31 21 26 28 9 MIN. QFF PRESSURE IN HPA 1006.2 1005.3 996.5 1007.0 1002.5 1002.7 1002.5 1005.4 1005.3 1008.8 1007.9 1013.7 996.5 DAY 31 23 13 21 8 29 15 26 8 7 23 25 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1021.8 1018.1 1021.6 1021.6 1016.8 1013.0 1013.5 1013.6 1018.5 1024.5 1026.2 1029.3 1019.9 MAX. QFE PRESSURE IN HPA 1032.9 1028.5 1035.2 1035.0 1023.1 1022.9 1022.0 1020.4 1028.3 1042.9 1040.2 1038.9 1042.9 DAY 18 15 18 1 5 5 20 31 5 26 28 10 MIN. QFE PRESSURE IN HPA 1009.0 1004.4 999.5 1007.8 1006.8 1004.6 1005.5 1008.2 1008.8 1011.5 1009.8 1016.0 999.5 DAY 23 24 13 21 7 29 15 27 8 7 23 25 MEAN QNH PRESSURE IN HPA 1018.9 1015.3 1018.8 1018.7 1014.0 1010.2 1010.7 1010.8 1015.7 1021.7 1023.4 1026.4 1017.0 MAX. QNH PRESSURE IN HPA 1030.0 1025.6 1032.3 1032.1 1020.3 1020.1 1019.2 1017.6 1025.4 1040.0 1037.3 1036.0 1040.0 DAY 18 15 18 1 5 5 20 31 5 26 28 10 MIN. QNH PRESSURE IN HPA 1006.2 1001.6 996.7 1005.0 1004.0 1001.8 1002.7 1005.4 1006.0 1008.7 1007.0 1013.2 996.7 DAY 23 24 13 21 7 29 15 27 8 7 23 25 MEAN QFF PRESSURE IN HPA 1019.2 1015.6 1019.0 1019.0 1014.4 1010.6 1011.1 1011.2 1016.1 1022.0 1023.6 1026.7 1017.4 MAX. QFF PRESSURE IN HPA 1030.3 1025.9 1032.6 1032.4 1020.5 1020.4 1019.6 1018.0 1025.8 1040.3 1037.5 1036.2 1040.3 DAY 18 15 18 1 5 5 20 31 5 26 28 10 MIN. QFF PRESSURE IN HPA 1006.5 1001.9 997.0 1005.3 1004.3 1002.2 1003.1 1005.8 1006.4 1009.0 1007.2 1013.4 997.0 DAY 23 24 13 21 7 29 15 27 8 7 23 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.6 1018.8 1022.6 1022.1 1017.4 1013.3 1014.0 1014.0 1019.3 1025.3 1027.0 1030.1 1020.5 MAX. QFE PRESSURE IN HPA 1033.9 1029.4 1037.3 1033.6 1023.5 1023.9 1023.0 1020.9 1028.4 1044.0 1040.7 1039.3 1044.0 DAY 18 15 9 1 5 5 20 31 5 26 9 10 MIN. QFE PRESSURE IN HPA 1009.2 1007.2 1001.8 1008.8 1005.7 1004.1 1006.4 1008.8 1010.5 1013.7 1009.9 1017.4 1001.8 DAY 30 10 13 20 7 29 15 24 2 7 23 25 MEAN QNH PRESSURE IN HPA 1019.7 1015.9 1019.7 1019.3 1014.6 1010.5 1011.2 1011.2 1016.4 1022.4 1024.1 1027.2 1017.7 MAX. QNH PRESSURE IN HPA 1031.0 1026.5 1034.4 1030.7 1020.7 1021.1 1020.2 1018.1 1025.5 1041.1 1037.8 1036.4 1041.1 DAY 18 15 9 1 5 5 20 31 5 26 9 10 MIN. QNH PRESSURE IN HPA 1006.4 1004.4 999.0 1006.0 1002.9 1001.3 1003.6 1006.0 1007.7 1010.9 1007.1 1014.6 999.0 DAY 30 10 13 20 7 29 15 24 2 7 23 25 MEAN QFF PRESSURE IN HPA 1020.0 1016.2 1020.0 1019.6 1014.9 1010.9 1011.6 1011.6 1016.8 1022.8 1024.4 1027.4 1018.0 MAX. QFF PRESSURE IN HPA 1031.3 1026.8 1034.6 1031.0 1020.9 1021.4 1020.6 1018.5 1025.9 1041.4 1038.1 1036.6 1041.4 DAY 18 15 9 1 5 5 20 31 5 26 9 10 MIN. QFF PRESSURE IN HPA 1006.6 1004.7 999.3 1006.3 1003.2 1001.7 1004.1 1006.4 1008.1 1011.2 1007.3 1014.7 999.3 DAY 30 10 13 20 7 29 15 24 2 7 23 25 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1021.5 1017.9 1022.3 1021.8 1017.2 1012.9 1013.3 1013.6 1018.5 1024.3 1026.0 1029.0 1019.9 MAX. QFE PRESSURE IN HPA 1033.9 1029.2 1036.9 1033.0 1023.2 1023.7 1022.1 1020.3 1026.8 1042.9 1039.6 1038.6 1042.9 DAY 28 15 27 1 4 5 20 31 20 26 9 9 MIN. QFE PRESSURE IN HPA 1005.8 1005.3 1002.1 1009.6 1004.9 1003.4 1007.2 1008.2 1009.4 1013.0 1010.8 1016.1 1002.1 DAY 11 19 12 20 7 29 15 26 14 3 23 25 MEAN QNH PRESSURE IN HPA 1018.7 1015.0 1019.5 1019.0 1014.4 1010.1 1010.5 1010.8 1015.6 1021.5 1023.2 1026.1 1017.0 MAX. QNH PRESSURE IN HPA 1031.0 1026.3 1034.0 1030.1 1020.4 1020.9 1019.3 1017.5 1024.0 1040.0 1036.7 1035.7 1040.0 DAY 28 15 27 1 4 5 20 31 20 26 9 9 MIN. QNH PRESSURE IN HPA 1003.0 1002.5 999.3 1006.8 1002.1 1000.6 1004.4 1005.4 1006.6 1010.2 1008.0 1013.3 999.3 DAY 11 19 12 20 7 29 15 26 14 3 23 25 MEAN QFF PRESSURE IN HPA 1018.9 1015.3 1019.7 1019.3 1014.7 1010.5 1010.9 1011.2 1016.0 1021.8 1023.5 1026.3 1017.4 MAX. QFF PRESSURE IN HPA 1031.3 1026.6 1034.3 1030.4 1020.7 1021.2 1019.7 1017.9 1024.3 1040.3 1037.0 1035.9 1040.3 DAY 28 15 27 1 4 5 20 31 20 26 9 9 MIN. QFF PRESSURE IN HPA 1003.3 1002.8 999.6 1007.1 1002.4 1001.0 1004.9 1005.8 1007.0 1010.5 1008.3 1013.5 999.6 DAY 11 19 12 20 7 29 15 26 14 3 23 25 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1021.0 1017.2 1021.5 1021.1 1016.5 1012.4 1012.6 1012.8 1017.7 1023.9 1026.0 1028.4 1019.2 MAX. QFE PRESSURE IN HPA 1033.4 1028.6 1036.7 1032.6 1024.1 1023.1 1020.3 1019.4 1027.0 1041.5 1039.0 1038.9 1041.5 DAY 28 15 27 1 4 5 19 31 20 26 9 9 MIN. QFE PRESSURE IN HPA 1005.6 1003.8 999.7 1006.9 1004.1 1002.1 1006.4 1006.7 1007.1 1013.0 1011.2 1016.5 999.7 DAY 11 10 12 20 7 29 7 26 9 3 19 25 MEAN QNH PRESSURE IN HPA 1018.2 1014.3 1018.6 1018.2 1013.7 1009.6 1009.8 1010.0 1014.8 1021.1 1023.1 1025.5 1016.4 MAX. QNH PRESSURE IN HPA 1030.5 1025.7 1033.8 1029.7 1021.3 1020.3 1017.5 1016.6 1024.2 1038.6 1036.1 1036.0 1038.6 DAY 28 15 27 1 4 5 19 31 20 26 9 9 MIN. QNH PRESSURE IN HPA 1002.8 1001.0 996.9 1004.1 1001.3 999.3 1003.6 1003.9 1004.3 1010.2 1008.4 1013.7 996.9 DAY 11 10 12 20 7 29 7 26 9 3 19 25 MEAN QFF PRESSURE IN HPA 1018.4 1014.6 1018.9 1018.5 1014.0 1010.0 1010.2 1010.4 1015.2 1021.4 1023.4 1025.7 1016.7 MAX. QFF PRESSURE IN HPA 1030.8 1026.0 1034.1 1030.0 1021.5 1020.6 1017.9 1017.0 1024.5 1038.9 1036.4 1036.2 1038.9 DAY 28 15 27 1 4 5 19 31 20 26 9 9 MIN. QFF PRESSURE IN HPA 1003.1 1001.3 997.2 1004.4 1001.6 999.7 1004.0 1004.3 1004.7 1010.5 1008.7 1013.9 997.2 DAY 11 10 12 20 7 29 7 26 9 3 19 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.7 1017.6 1021.9 1021.0 1016.3 1012.2 1012.5 1012.6 1017.8 1024.1 1026.4 1029.0 1019.4 MAX. QFE PRESSURE IN HPA 1032.8 1029.2 1037.1 1032.9 1024.4 1022.6 1020.7 1019.4 1027.8 1041.3 1039.0 1039.5 1041.3 DAY 28 15 27 1 4 5 19 31 20 26 9 9 MIN. QFE PRESSURE IN HPA 1007.6 1002.5 998.7 1005.0 1008.6 1001.8 1006.2 1005.4 1005.2 1013.0 1010.4 1017.6 998.7 DAY 11 19 12 20 2 29 7 26 9 3 19 25 MEAN QNH PRESSURE IN HPA 1018.9 1014.7 1019.1 1018.2 1013.5 1009.3 1009.7 1009.8 1014.9 1021.3 1023.5 1026.2 1016.6 MAX. QNH PRESSURE IN HPA 1029.9 1026.3 1034.2 1030.0 1021.6 1019.8 1017.9 1016.6 1024.9 1038.4 1036.1 1036.6 1038.4 DAY 28 15 27 1 4 5 19 31 20 26 9 9 MIN. QNH PRESSURE IN HPA 1004.8 999.7 995.9 1002.2 1005.8 999.0 1003.4 1002.6 1002.4 1010.2 1007.6 1014.8 995.9 DAY 11 19 12 20 2 29 7 26 9 3 19 25 MEAN QFF PRESSURE IN HPA 1019.1 1015.0 1019.3 1018.4 1013.9 1009.7 1010.1 1010.2 1015.3 1021.6 1023.8 1026.4 1016.9 MAX. QFF PRESSURE IN HPA 1030.2 1026.6 1034.5 1030.3 1021.8 1020.1 1018.3 1017.0 1025.3 1038.7 1036.4 1036.8 1038.7 DAY 28 15 27 1 4 5 19 31 20 26 9 9 MIN. QFF PRESSURE IN HPA 1005.1 1000.0 996.2 1002.5 1006.1 999.4 1003.8 1003.0 1002.8 1010.5 1007.9 1015.0 996.2 DAY 11 19 12 20 2 29 7 26 9 3 19 25 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1021.6 1017.6 1022.0 1021.2 1016.7 1012.5 1013.1 1013.0 1018.4 1024.3 1026.4 1028.4 1019.6 MAX. QFE PRESSURE IN HPA 1032.4 1029.2 1036.6 1032.8 1024.6 1022.0 1020.7 1019.6 1028.6 1039.9 1039.0 1036.1 1039.9 DAY 18 15 27 1 4 5 19 31 20 26 9 12 MIN. QFE PRESSURE IN HPA 1007.5 1004.4 998.6 1008.2 1003.5 1003.9 1006.6 1005.0 1005.8 1011.8 1009.8 1016.1 998.6 DAY 11 10 12 20 7 29 14 26 9 6 19 31 MEAN QNH PRESSURE IN HPA 1018.8 1014.7 1019.2 1018.4 1013.8 1009.7 1010.3 1010.2 1015.6 1021.5 1023.5 1025.5 1016.8 MAX. QNH PRESSURE IN HPA 1029.5 1026.3 1033.7 1029.9 1021.8 1019.2 1017.9 1016.8 1025.7 1037.0 1036.1 1033.2 1037.0 DAY 18 15 27 1 4 5 19 31 20 26 9 12 MIN. QNH PRESSURE IN HPA 1004.7 1001.6 995.8 1005.4 1000.7 1001.1 1003.8 1002.2 1003.0 1009.0 1007.0 1013.3 995.8 DAY 11 10 12 20 7 29 14 26 9 6 19 31 MEAN QFF PRESSURE IN HPA 1019.0 1015.0 1019.4 1018.6 1014.2 1010.1 1010.7 1010.6 1016.0 1021.8 1023.8 1025.7 1017.1 MAX. QFF PRESSURE IN HPA 1029.8 1026.6 1034.0 1030.2 1022.0 1019.5 1018.3 1017.2 1026.1 1037.3 1036.4 1033.4 1037.3 DAY 18 15 27 1 4 5 19 31 20 26 9 12 MIN. QFF PRESSURE IN HPA 1005.0 1001.9 996.2 1005.7 1001.1 1001.5 1004.2 1002.6 1003.4 1009.3 1007.3 1013.5 996.2 DAY 11 10 12 20 7 29 14 26 9 6 19 31 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1021.4 1017.4 1021.6 1020.9 1016.5 1012.3 1013.1 1013.0 1018.3 1024.2 1026.1 1028.5 1019.4 MAX. QFE PRESSURE IN HPA 1032.4 1028.7 1035.9 1032.4 1024.4 1021.1 1021.6 1019.1 1030.7 1039.3 1039.3 1036.2 1039.3 DAY 18 15 27 1 4 5 19 31 30 25 27 12 MIN. QFE PRESSURE IN HPA 1008.3 1005.9 998.4 1008.7 1004.0 1004.2 1005.4 1006.1 1006.2 1010.7 1010.6 1014.4 998.4 DAY 30 10 12 20 7 29 14 26 9 6 19 31 MEAN QNH PRESSURE IN HPA 1018.6 1014.6 1018.8 1018.0 1013.6 1009.5 1010.2 1010.2 1015.5 1021.4 1023.3 1025.6 1016.6 MAX. QNH PRESSURE IN HPA 1029.5 1025.8 1033.0 1029.5 1021.6 1018.3 1018.8 1016.3 1027.8 1036.4 1036.4 1033.3 1036.4 DAY 18 15 27 1 4 5 19 31 30 25 27 12 MIN. QNH PRESSURE IN HPA 1005.5 1003.1 995.6 1005.9 1001.2 1001.4 1002.6 1003.3 1003.4 1007.9 1007.8 1011.6 995.6 DAY 30 10 12 20 7 29 14 26 9 6 19 31 MEAN QFF PRESSURE IN HPA 1018.8 1014.8 1019.0 1018.3 1014.0 1009.9 1010.7 1010.6 1015.8 1021.7 1023.5 1025.8 1016.9 MAX. QFF PRESSURE IN HPA 1029.8 1026.1 1033.3 1029.8 1021.8 1018.6 1019.2 1016.7 1028.2 1036.7 1036.6 1033.5 1036.7 DAY 18 15 27 1 4 5 19 31 30 25 27 12 MIN. QFF PRESSURE IN HPA 1005.8 1003.4 996.0 1006.2 1001.6 1001.8 1003.0 1003.7 1003.8 1008.2 1008.1 1011.8 996.0 DAY 30 10 12 20 7 29 14 26 9 6 19 31 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.1 5.0 6.5 10.9 19.1 23.9 27.1 26.7 24.1 19.2 13.7 9.0 15.9 MINIMUN AIR TEMPERATURE (C) 2.8 2.9 4.7 9.1 15.9 20.1 23.1 21.7 20.1 14.5 10.5 5.7 12.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 15 30 22 14 1 0 0 82 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 6 2 1 0 0 0 0 0 0 0 0 0 9 TEMPERATURE RECORDS LOWEST(C) -1.0 0.0 -1.0 5.0 12.0 17.0 20.0 17.0 14.0 10.0 6.0 1.0 -1.0 DAY 18 18 3 3 2 4 12 28 26 18 26 17 MAXIMUM AIR TEMPERATURE (C) 10.1 7.4 8.6 13.3 22.8 27.8 31.1 31.6 28.8 24.4 17.8 13.4 19.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 6 26 28 10 0 0 0 70 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.0 16.0 16.0 25.0 28.0 32.0 33.0 34.0 33.0 27.0 25.0 18.0 34.0 DAY 13 4 30 23 13 30 5 13 1 3 1 8 DIF. BETWEEN (MAX.-MIN.) (C) 7.3 4.5 3.9 4.2 6.9 7.7 8.0 9.9 8.7 9.9 7.3 7.7 7.1 MEAN DAILY TEMP. (MDT) (C) 6.4 5.1 6.7 11.2 19.3 24.0 27.1 26.6 24.4 19.4 14.1 9.5 16.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 8.5 89.0 189.0 175.0 104.5 6.0 0.0 0.0 572.0 HEATING DEG. DAYS(BASE 18 0C) 358.5 360.5 351.5 204.0 18.5 0.0 0.0 0.0 0.0 2.0 119.5 262.0 1676.5 DEWPOINT (MEAN C) 3.5 1.9 3.7 8.3 14.8 18.4 22.6 21.8 20.3 15.8 11.1 6.3 12.4 MIXING RATIO (G/KG) 4.90 4.36 4.96 6.88 10.57 13.43 17.46 16.67 15.06 11.28 8.30 5.92 9.98 VAPOUR PRESSURE (HPA) 7.96 7.11 8.10 11.15 16.96 21.43 27.58 26.41 24.03 18.18 13.49 9.66 16.00 SATURATION DEF. (HPA) 1.62 1.68 1.71 2.14 5.61 8.75 8.83 9.34 6.68 4.49 2.62 2.01 4.62 RELATIVE HUMIDITY (MEAN %) 85 81 83 85 77 73 78 76 81 82 85 84 81 RELATIVE HUMIDITY (MAX. %) 95 91 91 93 91 90 91 91 94 95 94 93 92 RELATIVE HUMIDITY (MIN. %) 69 69 72 75 62 54 63 59 63 63 67 67 65 RELATIVE HUMIDITY (MEAN% 03UTC) 91 87 88 90 87 84 86 88 91 88 91 89 88 RELATIVE HUMIDITY (MEAN% 09UTC) 75 76 77 77 66 59 67 63 66 67 75 72 70 RELATIVE HUMIDITY (MEAN% 15UTC) 83 76 81 84 73 64 72 68 76 79 85 85 77 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 73.0 76.1 45.6 34.2 22.1 0.1 97.1 7.0 101.1 22.0 195.2 68.0 741.5 DAYS WITH PRECIPITATION >=10 5 2 2 2 1 0 3 0 4 1 5 2 27 DAYS WITH PRECIPITATION >= 5 5 6 4 2 1 0 4 1 6 2 8 4 43 DAYS WITH PRECIPITATION >= 1 11 12 9 5 1 0 7 2 9 4 10 6 76 DAYS WITH PRECIPITATION 14 17 15 12 5 6 10 4 12 5 13 7 120 GREATEST DAILY PRECIPITATION 14.0 21.0 10.0 15.0 22.0 0.0 49.0 6.0 42.0 13.0 58.0 34.0 58.0 DAY 5 6 9 7 18 ** 24 15 29 5 7 1 DAY WITH THUNDER STORM 0 0 0 0 1 0 6 2 4 0 2 0 15 DAYS WITH SNOW OR SLEET 0 3 0 0 0 0 0 0 0 0 0 0 3 DAYS WITH DUST 0 0 0 0 0 1 1 0 0 1 0 0 3 WIND DIRECTION (PREVAILING) 270 270 270 270 315 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 3.1 4.1 3.4 3.5 3.4 3.1 3.3 2.9 2.8 2.9 2.5 3.0 3.1 PREVAILING WIND PERCENT 29.8 30.8 33.5 38.3 38.3 42.9 46.8 41.9 48.8 40.7 48.8 45.2 39.5 CALMS PERCENT OF WIND 6.0 4.9 2.8 1.3 4.4 7.9 4.4 4.0 2.9 4.4 0.4 2.0 3.8 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 293 299 305 293 319 289 280 287 280 295 275 286 291 VECTOR WIND MAGNITUDE(KNOTS) 0.8 1.3 1.4 2.1 2.1 2.6 2.6 1.9 2.4 1.8 1.3 1.2 1.8 WIND STEADINESES (MEAN %) 25.8 33.3 41.2 61.8 63.6 86.7 78.8 61.3 77.4 62.1 44.8 41.4 56.2 WIND SPEED (MEAN KNOTS) 3.1 3.9 3.4 3.4 3.3 3.0 3.3 3.1 3.1 2.9 2.9 2.9 3.2 FASTEST WIND DIRECTION 310 230 270 230 270 270 90 270 230 270 50 270 270 FASTEST WIND SPEED (KNOTS) 12 14 18 12 18 9 18 18 11 18 10 13 18 DAY 13 8 25 7 18 9 11 15 11 3 25 2 DAYS WITH SKY CLEAR (0-2)/8 5 3 3 4 19 16 16 25 15 21 7 8 142 DAYS WITH P.CLOUDY (3-6)/8 16 7 7 6 10 12 10 5 11 9 13 12 118 DAYS WITH CLOUDY (7-8)/8 10 18 21 20 2 2 5 1 4 1 10 11 105 DAYS WITH VISIBILITY =< 2 KM 3 4 2 3 1 0 0 0 0 1 1 2 17 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1018.8 1023.3 1026.4 1020.0 1016.3 1014.4 1010.6 1012.7 1017.1 1021.1 1025.5 1025.1 1019.3 MAX. QFE PRESSURE IN HPA 1046.0 1042.9 1041.8 1031.3 1032.5 1043.8 1015.7 1019.8 1026.8 1032.1 1038.8 1040.5 1046.0 DAY-HOUR 28- 9 22- 6 2- 6 30-18 1- 6 14- 6 26- 6 15- 6 30- 6 12- 6 26- 6 16- 0 MIN. QFE PRESSURE IN HPA 1005.0 1002.0 1010.8 1008.0 1002.6 1009.9 1002.8 1004.8 1009.3 1007.1 1012.9 1014.9 1002.0 DAY-HOUR 11-12 16- 3 18- 6 23-18 13- 0 27-15 22-15 10-15 27- 0 2-18 1- 0 7- 0 MEAN QNH PRESSURE IN HPA 1015.9 1020.4 1023.5 1017.2 1013.5 1011.5 1007.7 1009.8 1014.3 1018.3 1022.6 1022.2 1016.4 MAX. QNH PRESSURE IN HPA 1043.1 1040.0 1038.9 1028.4 1029.6 1040.9 1012.9 1017.0 1024.0 1029.2 1035.9 1037.6 1043.1 DAY-HOUR 28- 9 22- 6 2- 6 30-18 1- 6 14- 6 26- 6 15- 6 30- 6 12- 6 26- 6 16- 0 MIN. QNH PRESSURE IN HPA 1002.2 999.2 1008.0 1005.2 999.8 1007.1 1000.0 1002.0 1006.5 1004.3 1010.1 1012.1 999.2 DAY-HOUR 11-12 16- 3 18- 6 23-18 13- 0 27-15 22-15 10-15 27- 0 2-18 1- 0 7- 0 MEAN QFF PRESSURE IN HPA 1016.2 1020.6 1023.8 1017.5 1013.8 1011.9 1008.2 1010.2 1014.7 1018.6 1022.9 1022.5 1016.7 MAX. QFF PRESSURE IN HPA 1043.3 1040.2 1039.1 1028.7 1029.9 1041.3 1013.3 1017.4 1024.3 1029.6 1036.2 1037.9 1043.3 DAY-HOUR 28- 9 22- 6 2- 6 30-18 1- 6 14- 6 26- 6 15- 6 30- 6 12- 6 26- 6 16- 0 MIN. QFF PRESSURE IN HPA 1002.4 999.4 1008.2 1005.6 1000.2 1007.5 1000.4 1002.4 1006.9 1004.6 1010.4 1012.3 999.4 DAY-HOUR 11-12 16- 3 18- 6 23-18 13- 0 27-15 22-15 10-15 27- 0 2-18 1- 0 7- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1018.7 1022.5 1026.4 1019.5 1015.9 1014.3 1010.3 1012.5 1016.8 1020.8 1024.8 1024.9 1018.9 MAX. QFE PRESSURE IN HPA 1032.1 1042.0 1040.4 1028.7 1030.8 1020.6 1013.8 1017.5 1025.7 1031.4 1037.1 1040.5 1042.0 DAY 17 22 2 29 1 3 31 16 30 12 27 16 MIN. QFE PRESSURE IN HPA 1007.1 1006.7 1013.3 1010.3 1002.6 1010.8 1004.0 1006.2 1009.3 1007.2 1012.9 1014.9 1002.6 DAY 12 4 24 26 13 27 22 10 27 3 1 7 MEAN QNH PRESSURE IN HPA 1015.9 1019.7 1023.5 1016.7 1013.1 1011.4 1007.5 1009.7 1013.9 1017.9 1021.9 1022.1 1016.1 MAX. QNH PRESSURE IN HPA 1029.2 1039.1 1037.5 1025.8 1027.9 1017.8 1011.0 1014.7 1022.9 1028.5 1034.2 1037.6 1039.1 DAY 17 22 2 29 1 3 31 16 30 12 27 16 MIN. QNH PRESSURE IN HPA 1004.3 1003.9 1010.5 1007.5 999.8 1008.0 1001.2 1003.4 1006.5 1004.4 1010.1 1012.1 999.8 DAY 12 4 24 26 13 27 22 10 27 3 1 7 MEAN QFF PRESSURE IN HPA 1016.1 1019.9 1023.8 1016.9 1013.4 1011.8 1007.9 1010.1 1014.3 1018.3 1022.2 1022.3 1016.4 MAX. QFF PRESSURE IN HPA 1029.4 1039.3 1037.7 1026.1 1028.2 1018.1 1011.4 1015.1 1023.2 1028.9 1034.4 1037.9 1039.3 DAY 17 22 2 29 1 3 31 16 30 12 27 16 MIN. QFF PRESSURE IN HPA 1004.5 1004.1 1010.7 1007.8 1000.2 1008.4 1001.6 1003.8 1006.9 1004.7 1010.4 1012.3 1000.2 DAY 12 4 25 26 13 27 22 10 27 3 1 7 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1018.9 1022.9 1026.5 1019.9 1016.9 1014.8 1010.9 1013.0 1017.6 1021.3 1025.4 1025.1 1019.4 MAX. QFE PRESSURE IN HPA 1032.6 1042.4 1041.1 1029.9 1031.8 1021.0 1014.9 1019.1 1026.1 1031.4 1037.6 1039.5 1042.4 DAY 17 22 2 29 1 3 26 15 30 12 26 16 MIN. QFE PRESSURE IN HPA 1005.7 1002.0 1012.5 1011.7 1005.3 1011.0 1004.5 1007.1 1010.7 1008.6 1017.3 1014.9 1002.0 DAY 9 16 18 23 13 24 22 10 27 3 18 7 MEAN QNH PRESSURE IN HPA 1016.0 1020.0 1023.7 1017.1 1014.1 1012.0 1008.1 1010.2 1014.7 1018.5 1022.6 1022.2 1016.6 MAX. QNH PRESSURE IN HPA 1029.7 1039.5 1038.2 1027.0 1028.9 1018.2 1012.1 1016.3 1023.3 1028.5 1034.7 1036.6 1039.5 DAY 17 22 2 29 1 3 26 15 30 12 26 16 MIN. QNH PRESSURE IN HPA 1002.9 999.2 1009.7 1008.9 1002.5 1008.2 1001.7 1004.3 1007.9 1005.8 1014.5 1012.1 999.2 DAY 9 16 18 23 13 24 22 10 27 3 18 7 MEAN QFF PRESSURE IN HPA 1016.2 1020.2 1023.9 1017.3 1014.4 1012.4 1008.5 1010.6 1015.1 1018.8 1022.9 1022.5 1016.9 MAX. QFF PRESSURE IN HPA 1029.9 1039.7 1038.4 1027.3 1029.2 1018.5 1012.5 1016.7 1023.6 1028.9 1035.0 1036.8 1039.7 DAY 17 22 2 29 1 3 26 15 30 12 26 16 MIN. QFF PRESSURE IN HPA 1003.1 999.4 1009.9 1009.2 1002.9 1008.6 1002.1 1004.7 1008.2 1006.1 1014.7 1012.3 999.4 DAY 9 16 18 23 13 24 22 10 27 3 18 7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1019.4 1024.2 1027.2 1020.5 1017.1 1015.8 1011.1 1013.7 1018.1 1022.2 1026.2 1025.9 1020.1 MAX. QFE PRESSURE IN HPA 1033.7 1042.9 1041.8 1030.1 1032.5 1043.8 1015.7 1019.8 1026.8 1032.1 1038.8 1039.4 1043.8 DAY 17 22 2 29 1 14 26 15 30 12 26 15 MIN. QFE PRESSURE IN HPA 1007.3 1008.8 1010.8 1010.5 1005.4 1011.1 1004.6 1007.5 1011.5 1014.4 1017.6 1015.5 1004.6 DAY 9 4 18 23 13 27 22 10 27 3 18 7 MEAN QNH PRESSURE IN HPA 1016.6 1021.4 1024.4 1017.7 1014.3 1012.9 1008.3 1010.8 1015.3 1019.4 1023.4 1023.1 1017.3 MAX. QNH PRESSURE IN HPA 1030.8 1040.0 1038.9 1027.2 1029.6 1040.9 1012.9 1017.0 1024.0 1029.2 1035.9 1036.5 1040.9 DAY 17 22 2 29 1 14 26 15 30 12 26 15 MIN. QNH PRESSURE IN HPA 1004.5 1006.0 1008.0 1007.7 1002.6 1008.3 1001.8 1004.7 1008.7 1011.6 1014.8 1012.7 1001.8 DAY 9 4 18 23 13 27 22 10 27 3 18 7 MEAN QFF PRESSURE IN HPA 1016.8 1021.6 1024.6 1018.0 1014.6 1013.3 1008.7 1011.3 1015.7 1019.7 1023.7 1023.3 1017.6 MAX. QFF PRESSURE IN HPA 1031.0 1040.2 1039.1 1027.5 1029.9 1041.3 1013.3 1017.4 1024.3 1029.6 1036.2 1036.7 1041.3 DAY 17 22 2 30 1 14 26 15 30 12 26 15 MIN. QFF PRESSURE IN HPA 1004.7 1006.2 1008.2 1008.0 1003.0 1008.7 1002.2 1005.1 1009.1 1011.9 1015.1 1012.9 1002.2 DAY 9 4 18 23 13 27 22 10 27 3 18 7 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1019.2 1023.5 1026.7 1020.1 1016.6 1014.5 1010.8 1013.1 1017.4 1021.3 1025.3 1024.7 1019.4 MAX. QFE PRESSURE IN HPA 1046.0 1041.5 1040.5 1029.8 1032.2 1020.6 1014.7 1019.5 1026.6 1031.0 1038.4 1038.2 1046.0 DAY 28 22 2 30 1 3 26 15 30 11 26 15 MIN. QFE PRESSURE IN HPA 1006.4 1010.0 1011.9 1009.1 1004.5 1011.2 1003.8 1006.5 1011.0 1013.6 1016.1 1015.2 1003.8 DAY 11 4 18 23 13 27 22 10 27 2 18 25 MEAN QNH PRESSURE IN HPA 1016.4 1020.7 1023.9 1017.3 1013.8 1011.7 1008.0 1010.3 1014.6 1018.5 1022.4 1021.8 1016.6 MAX. QNH PRESSURE IN HPA 1043.1 1038.6 1037.6 1026.9 1029.3 1017.8 1011.9 1016.7 1023.8 1028.1 1035.5 1035.3 1043.1 DAY 28 22 2 30 1 3 26 15 30 11 26 15 MIN. QNH PRESSURE IN HPA 1003.6 1007.2 1009.1 1006.3 1001.7 1008.4 1001.0 1003.7 1008.2 1010.8 1013.3 1012.4 1001.0 DAY 11 4 18 23 13 27 22 10 27 2 18 25 MEAN QFF PRESSURE IN HPA 1016.6 1020.9 1024.1 1017.5 1014.1 1012.1 1008.4 1010.7 1015.0 1018.8 1022.7 1022.1 1016.9 MAX. QFF PRESSURE IN HPA 1043.3 1038.8 1037.8 1027.3 1029.6 1018.1 1012.3 1017.1 1024.1 1028.5 1035.8 1035.6 1043.3 DAY 28 22 2 30 1 3 26 15 30 11 26 15 MIN. QFF PRESSURE IN HPA 1003.8 1007.4 1009.3 1006.6 1002.1 1008.8 1001.4 1004.1 1008.6 1011.1 1013.6 1012.7 1001.4 DAY 11 4 18 23 13 27 22 10 27 2 18 25 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1017.8 1022.8 1026.0 1019.7 1016.0 1013.9 1010.2 1012.2 1016.6 1020.7 1024.9 1024.5 1018.8 MAX. QFE PRESSURE IN HPA 1032.7 1039.8 1039.3 1030.2 1030.5 1020.1 1014.3 1018.2 1025.1 1031.1 1037.8 1037.9 1039.8 DAY 17 22 2 30 1 3 25 15 30 11 26 15 MIN. QFE PRESSURE IN HPA 1005.0 1009.6 1012.5 1008.1 1004.9 1010.6 1003.1 1005.3 1010.4 1011.2 1015.8 1015.8 1003.1 DAY 11 4 31 23 13 27 22 10 27 2 18 25 MEAN QNH PRESSURE IN HPA 1015.0 1019.9 1023.2 1016.9 1013.2 1011.1 1007.4 1009.4 1013.7 1017.9 1022.1 1021.6 1016.0 MAX. QNH PRESSURE IN HPA 1029.8 1036.9 1036.4 1027.3 1027.6 1017.3 1011.5 1015.4 1022.3 1028.2 1034.9 1035.0 1036.9 DAY 17 22 2 30 1 3 25 15 30 11 26 15 MIN. QNH PRESSURE IN HPA 1002.2 1006.8 1009.7 1005.3 1002.1 1007.8 1000.3 1002.5 1007.6 1008.4 1013.0 1013.0 1000.3 DAY 11 4 31 23 13 27 22 10 27 2 18 25 MEAN QFF PRESSURE IN HPA 1015.2 1020.1 1023.4 1017.2 1013.5 1011.5 1007.9 1009.8 1014.1 1018.2 1022.4 1021.9 1016.3 MAX. QFF PRESSURE IN HPA 1030.0 1037.1 1036.6 1027.6 1027.9 1017.6 1011.9 1015.8 1022.6 1028.6 1035.2 1035.3 1037.1 DAY 17 22 2 30 1 3 25 15 30 11 26 15 MIN. QFF PRESSURE IN HPA 1002.4 1007.1 1010.0 1005.6 1002.5 1008.2 1000.7 1002.9 1008.0 1008.7 1013.3 1013.2 1000.7 DAY 11 4 31 23 13 27 22 10 27 2 18 25 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1018.7 1023.4 1026.2 1020.2 1015.6 1013.5 1009.9 1011.8 1016.6 1020.7 1025.7 1025.2 1019.0 MAX. QFE PRESSURE IN HPA 1032.7 1039.7 1039.7 1030.3 1029.5 1019.8 1014.1 1017.8 1024.6 1031.4 1038.8 1039.2 1039.7 DAY 17 21 1 30 1 3 11 15 30 11 26 15 MIN. QFE PRESSURE IN HPA 1005.5 1009.4 1012.3 1011.0 1005.7 1009.9 1002.8 1004.8 1010.6 1009.6 1016.9 1016.5 1002.8 DAY 11 19 24 17 13 27 22 10 26 2 18 7 MEAN QNH PRESSURE IN HPA 1015.9 1020.6 1023.3 1017.4 1012.8 1010.7 1007.1 1009.0 1013.8 1017.8 1022.9 1022.4 1016.1 MAX. QNH PRESSURE IN HPA 1029.8 1036.8 1036.8 1027.4 1026.6 1017.0 1011.3 1015.0 1021.8 1028.5 1035.9 1036.3 1036.8 DAY 17 21 1 30 1 3 11 15 30 11 26 15 MIN. QNH PRESSURE IN HPA 1002.7 1006.6 1009.5 1008.2 1002.9 1007.1 1000.0 1002.0 1007.8 1006.8 1014.1 1013.7 1000.0 DAY 11 19 24 17 13 27 22 10 26 2 18 7 MEAN QFF PRESSURE IN HPA 1016.1 1020.8 1023.5 1017.6 1013.2 1011.1 1007.5 1009.4 1014.2 1018.2 1023.1 1022.6 1016.4 MAX. QFF PRESSURE IN HPA 1030.0 1037.0 1037.0 1027.7 1026.9 1017.3 1011.7 1015.4 1022.1 1028.9 1036.1 1036.5 1037.0 DAY 17 21 1 30 1 3 11 15 30 11 26 15 MIN. QFF PRESSURE IN HPA 1002.9 1006.8 1009.7 1008.5 1003.3 1007.5 1000.4 1002.4 1008.1 1007.1 1014.4 1013.9 1000.4 DAY 11 19 24 17 13 27 22 10 26 2 18 7 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1018.7 1023.7 1026.3 1020.3 1016.4 1014.1 1010.7 1012.5 1017.1 1021.1 1025.9 1025.4 1019.3 MAX. QFE PRESSURE IN HPA 1032.4 1041.5 1040.6 1031.3 1029.7 1021.3 1015.6 1018.4 1025.2 1031.9 1038.4 1040.4 1041.5 DAY 16 21 1 30 1 2 11 15 22 11 26 15 MIN. QFE PRESSURE IN HPA 1006.2 1008.9 1012.9 1008.0 1007.0 1010.3 1003.1 1005.2 1010.8 1007.1 1017.7 1017.0 1003.1 DAY 11 19 31 23 12 7 16 10 26 2 18 7 MEAN QNH PRESSURE IN HPA 1015.8 1020.8 1023.4 1017.4 1013.5 1011.2 1007.9 1009.7 1014.3 1018.3 1023.1 1022.5 1016.5 MAX. QNH PRESSURE IN HPA 1029.5 1038.6 1037.7 1028.4 1026.8 1018.5 1012.8 1015.6 1022.4 1029.0 1035.5 1037.5 1038.6 DAY 16 21 1 30 1 2 11 15 22 11 26 15 MIN. QNH PRESSURE IN HPA 1003.4 1006.1 1010.1 1005.2 1004.2 1007.5 1000.3 1002.4 1008.0 1004.3 1014.9 1014.2 1000.3 DAY 11 19 31 23 12 7 16 10 26 2 18 7 MEAN QFF PRESSURE IN HPA 1016.1 1021.1 1023.7 1017.7 1013.9 1011.6 1008.3 1010.1 1014.7 1018.6 1023.4 1022.7 1016.8 MAX. QFF PRESSURE IN HPA 1029.7 1038.8 1037.9 1028.7 1027.1 1018.8 1013.2 1016.0 1022.7 1029.4 1035.7 1037.7 1038.8 DAY 16 21 1 30 1 2 11 15 22 11 26 15 MIN. QFF PRESSURE IN HPA 1003.6 1006.3 1010.3 1005.6 1004.6 1007.9 1000.7 1002.8 1008.4 1004.6 1015.2 1014.4 1000.7 DAY 11 19 31 23 12 7 16 23 26 2 18 7 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1019.0 1023.4 1026.0 1020.1 1015.9 1014.2 1010.6 1012.5 1017.1 1021.0 1025.6 1025.1 1019.2 MAX. QFE PRESSURE IN HPA 1032.5 1041.6 1040.8 1031.2 1028.4 1021.2 1014.8 1017.9 1024.8 1031.7 1037.8 1040.4 1041.6 DAY 16 21 1 30 1 2 25 15 21 11 26 15 MIN. QFE PRESSURE IN HPA 1006.5 1008.2 1013.3 1010.5 1004.4 1010.8 1002.9 1005.7 1010.2 1007.1 1017.9 1016.0 1002.9 DAY 11 3 24 25 12 26 16 10 26 2 17 6 MEAN QNH PRESSURE IN HPA 1016.1 1020.5 1023.2 1017.3 1013.1 1011.4 1007.8 1009.7 1014.3 1018.2 1022.8 1022.3 1016.4 MAX. QNH PRESSURE IN HPA 1029.6 1038.7 1037.9 1028.3 1025.5 1018.4 1012.0 1015.1 1022.0 1028.8 1034.9 1037.5 1038.7 DAY 16 21 1 30 1 2 25 15 21 11 26 15 MIN. QNH PRESSURE IN HPA 1003.7 1005.4 1010.5 1007.7 1001.6 1008.0 1000.1 1002.9 1007.4 1004.3 1015.1 1013.2 1000.1 DAY 11 3 24 25 12 26 16 10 26 2 17 6 MEAN QFF PRESSURE IN HPA 1016.4 1020.7 1023.4 1017.5 1013.4 1011.8 1008.2 1010.1 1014.7 1018.5 1023.1 1022.5 1016.7 MAX. QFF PRESSURE IN HPA 1029.9 1038.9 1038.1 1028.7 1025.8 1018.7 1012.4 1015.5 1022.3 1029.2 1035.1 1037.8 1038.9 DAY 16 21 1 30 1 2 25 15 21 11 26 15 MIN. QFF PRESSURE IN HPA 1003.9 1005.6 1010.7 1008.0 1002.0 1008.4 1000.5 1003.3 1007.8 1004.6 1015.4 1013.4 1000.5 DAY 11 3 24 25 12 26 16 10 26 2 17 6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.7 10.1 9.7 13.1 18.9 22.7 26.2 26.3 23.3 18.4 14.1 9.3 16.6 MINIMUN AIR TEMPERATURE (C) 4.7 5.8 7.5 10.3 15.3 18.7 21.4 23.0 19.9 14.3 10.5 6.2 13.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 5 23 28 12 0 0 0 68 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS LOWEST(C) 1.0 1.0 2.0 4.0 11.0 15.0 19.0 19.0 15.0 9.0 6.0 2.0 1.0 DAY 8 2 6 12 10 14 1 18 23 15 18 7 MAXIMUM AIR TEMPERATURE (C) 12.1 15.7 12.6 16.3 22.3 26.5 30.5 30.4 27.6 23.3 18.3 13.3 20.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 1 23 17 0 0 0 0 41 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 17.0 24.0 22.0 29.0 28.0 30.0 33.0 37.0 29.0 27.0 23.0 19.0 37.0 DAY 12 11 29 22 31 28 25 2 1 17 1 18 DIF. BETWEEN (MAX.-MIN.) (C) 7.4 9.9 5.1 6.0 7.0 7.8 9.1 7.4 7.7 9.0 7.8 7.1 7.7 MEAN DAILY TEMP. (MDT) (C) 8.4 10.8 10.0 13.3 18.8 22.6 26.0 26.7 23.7 18.8 14.4 9.7 16.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.0 7.0 54.0 154.0 171.0 84.5 1.5 0.0 0.0 473.0 HEATING DEG. DAYS(BASE 18 0C) 297.5 202.5 247.5 146.0 19.0 0.0 0.0 0.0 0.0 14.0 109.0 256.0 1291.5 DEWPOINT (MEAN C) 4.7 5.7 6.3 9.2 14.2 17.8 20.8 22.0 19.3 14.9 10.8 6.4 12.7 MIXING RATIO (G/KG) 5.30 5.75 5.97 7.30 10.17 12.97 15.57 16.82 14.09 10.62 8.14 5.98 9.89 VAPOUR PRESSURE (HPA) 8.68 9.32 9.70 11.81 16.37 20.71 24.65 26.60 22.52 17.14 13.20 9.72 15.87 SATURATION DEF. (HPA) 2.06 3.47 2.54 3.61 5.83 7.34 9.85 8.33 6.53 4.46 3.24 2.18 4.95 RELATIVE HUMIDITY (MEAN %) 83 77 80 79 76 76 73 78 79 81 82 83 79 RELATIVE HUMIDITY (MAX. %) 93 91 91 92 90 92 88 91 92 94 93 92 92 RELATIVE HUMIDITY (MIN. %) 65 55 66 65 59 58 57 63 63 63 62 68 62 RELATIVE HUMIDITY (MEAN% 03UTC) 90 86 88 89 86 87 85 89 90 91 90 89 88 RELATIVE HUMIDITY (MEAN% 09UTC) 69 61 72 68 62 65 62 67 67 66 69 74 67 RELATIVE HUMIDITY (MEAN% 15UTC) 80 72 77 73 72 68 67 74 72 79 81 81 75 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 34.6 17.0 75.2 26.7 4.7 40.4 4.0 61.2 65.3 99.3 213.3 109.1 750.8 DAYS WITH PRECIPITATION >=10 0 0 3 1 0 2 0 1 2 2 5 5 21 DAYS WITH PRECIPITATION >= 5 2 2 5 2 0 2 0 3 2 3 6 5 32 DAYS WITH PRECIPITATION >= 1 9 3 12 3 2 6 1 4 5 5 10 7 67 DAYS WITH PRECIPITATION 13 5 20 10 12 11 2 9 12 5 13 11 123 GREATEST DAILY PRECIPITATION 9.0 9.0 23.0 16.0 2.0 18.0 4.0 46.0 35.0 56.0 75.0 24.0 75.0 DAY 1 23 9 11 8 23 28 17 29 10 9 2 DAY WITH THUNDER STORM 0 0 0 3 2 1 0 0 0 6 2 1 15 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 1 0 0 0 0 0 0 1 0 0 0 2 WIND DIRECTION (PREVAILING) 270 315 270 270 315 270 270 270 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 2.2 3.2 3.5 4.9 3.5 3.8 3.6 3.4 3.0 2.5 2.6 3.8 3.3 PREVAILING WIND PERCENT 43.1 28.1 39.1 42.5 37.9 49.2 55.2 52.1 61.7 46.8 42.1 29.4 43.7 CALMS PERCENT OF WIND 2.8 4.0 0.4 0.0 1.2 2.1 0.8 2.5 1.3 4.0 1.3 4.4 2.1 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 240 240 248 240 248 2912 VECTOR WIND DIRECTION (MEAN) 307 324 323 301 306 285 287 285 283 303 312 310 298 VECTOR WIND MAGNITUDE(KNOTS) 0.9 1.4 1.5 2.5 2.4 2.8 3.2 3.1 2.8 1.7 1.4 1.4 2.0 WIND STEADINESES (MEAN %) 36.0 42.4 39.5 58.1 66.7 82.4 88.9 86.1 90.3 60.7 48.3 45.2 60.6 WIND SPEED (MEAN KNOTS) 2.5 3.3 3.8 4.3 3.6 3.4 3.6 3.6 3.1 2.8 2.9 3.1 3.3 FASTEST WIND DIRECTION 90 310 270 270 270 300 270 270 270 360 50 270 270 FASTEST WIND SPEED (KNOTS) 7 18 15 24 15 20 10 10 12 22 11 15 24 DAY 26 12 31 22 8 25 4 14 29 14 8 1 DAYS WITH SKY CLEAR (0-2)/8 10 13 1 8 11 15 20 14 10 20 9 11 142 DAYS WITH P.CLOUDY (3-6)/8 8 11 10 10 14 8 9 9 13 7 12 6 117 DAYS WITH CLOUDY (7-8)/8 13 4 20 12 6 7 2 7 7 4 9 14 105 DAYS WITH VISIBILITY =< 2 KM 3 4 3 3 0 1 0 0 0 0 0 12 26 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1026.3 1018.5 1020.9 1020.0 1018.5 1014.7 1009.6 1011.1 1017.0 1021.7 1021.7 1020.6 1018.4 MAX. QFE PRESSURE IN HPA 1038.6 1030.4 1032.9 1032.0 1031.6 1023.9 1015.2 1021.6 1027.5 1031.6 1036.3 1042.9 1042.9 DAY-HOUR 9- 6 1- 6 22- 9 1- 3 26-18 21-21 8- 9 17-18 30- 6 10-18 12- 6 2- 0 MIN. QFE PRESSURE IN HPA 1014.3 997.9 1009.7 1006.0 1008.0 1005.0 1003.2 1001.3 1009.7 1014.9 1006.8 1009.1 997.9 DAY-HOUR 16-12 23- 0 11-15 22-12 3- 0 4-12 31-21 1- 3 1-12 30- 0 24-12 18- 0 MEAN QNH PRESSURE IN HPA 1023.4 1015.7 1018.0 1017.1 1015.7 1011.9 1006.8 1008.2 1014.1 1018.9 1018.8 1017.7 1015.5 MAX. QNH PRESSURE IN HPA 1035.7 1027.5 1030.0 1029.1 1028.7 1021.1 1012.4 1018.8 1024.7 1028.7 1033.4 1040.0 1040.0 DAY-HOUR 9- 6 1- 6 22- 9 1- 3 26-18 21-21 8- 9 17-18 30- 6 10-18 12- 6 2- 0 MIN. QNH PRESSURE IN HPA 1011.5 995.1 1006.9 1003.2 1005.2 1002.2 1000.4 998.5 1006.9 1012.1 1004.0 1006.3 995.1 DAY-HOUR 16-12 23- 0 11-15 22-12 3- 0 4-12 31-21 1- 3 1-12 30- 0 24-12 18- 0 MEAN QFF PRESSURE IN HPA 1023.6 1016.0 1018.3 1017.4 1016.0 1012.3 1007.2 1008.7 1014.6 1019.2 1019.1 1018.0 1015.9 MAX. QFF PRESSURE IN HPA 1035.9 1027.8 1030.3 1029.4 1029.1 1021.4 1012.8 1019.1 1025.0 1029.1 1033.7 1040.3 1040.3 DAY-HOUR 9- 6 1- 6 22- 9 1- 3 26-18 21-21 8- 9 17-18 30- 6 10-18 12- 6 2- 0 MIN. QFF PRESSURE IN HPA 1011.7 995.5 1007.1 1003.5 1005.5 1002.6 1000.8 998.9 1007.3 1012.4 1004.3 1006.5 995.5 DAY-HOUR 16-12 23- 0 11-15 22-15 3- 0 4-15 31-21 1- 3 1-12 30- 0 24-12 18- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1026.0 1018.4 1020.8 1019.6 1018.1 1014.6 1009.6 1011.1 1016.6 1021.6 1021.4 1020.5 1018.2 MAX. QFE PRESSURE IN HPA 1037.3 1029.7 1032.1 1030.6 1030.0 1023.6 1015.1 1020.3 1026.5 1029.5 1035.2 1042.9 1042.9 DAY 9 1 23 1 27 22 9 18 30 11 12 2 MIN. QFE PRESSURE IN HPA 1016.9 997.9 1010.3 1009.2 1008.0 1006.9 1003.8 1003.2 1011.0 1014.9 1007.4 1009.1 997.9 DAY 13 23 16 22 3 29 29 2 1 30 23 18 MEAN QNH PRESSURE IN HPA 1023.2 1015.5 1018.0 1016.8 1015.2 1011.8 1006.8 1008.3 1013.7 1018.8 1018.6 1017.7 1015.4 MAX. QNH PRESSURE IN HPA 1034.4 1026.8 1029.2 1027.7 1027.1 1020.8 1012.3 1017.5 1023.7 1026.6 1032.3 1040.0 1040.0 DAY 9 1 23 1 27 22 9 18 30 11 12 2 MIN. QNH PRESSURE IN HPA 1014.1 995.1 1007.5 1006.4 1005.2 1004.1 1001.0 1000.4 1008.2 1012.1 1004.6 1006.3 995.1 DAY 13 23 16 22 3 29 29 2 1 30 23 18 MEAN QFF PRESSURE IN HPA 1023.4 1015.8 1018.2 1017.1 1015.6 1012.2 1007.2 1008.7 1014.3 1019.2 1018.9 1017.9 1015.7 MAX. QFF PRESSURE IN HPA 1034.7 1027.1 1029.5 1028.0 1027.5 1021.1 1012.7 1017.8 1024.0 1026.9 1032.6 1040.3 1040.3 DAY 9 1 23 1 27 22 9 18 30 11 12 2 MIN. QFF PRESSURE IN HPA 1014.3 995.5 1007.7 1006.7 1005.5 1004.5 1001.4 1000.8 1008.6 1012.4 1004.9 1006.5 995.5 DAY 13 23 16 22 3 29 29 2 9 30 23 18 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1026.0 1018.4 1021.0 1020.3 1018.6 1015.2 1009.9 1011.5 1017.1 1021.8 1021.9 1020.8 1018.6 MAX. QFE PRESSURE IN HPA 1032.8 1030.2 1031.6 1032.0 1029.7 1023.4 1014.8 1019.5 1027.0 1030.1 1035.1 1040.6 1040.6 DAY 28 1 22 1 27 22 9 18 30 11 12 2 MIN. QFE PRESSURE IN HPA 1016.4 998.0 1010.0 1010.4 1009.0 1007.3 1004.2 1001.3 1011.4 1015.0 1008.1 1009.8 998.0 DAY 13 23 16 22 3 4 29 1 10 30 23 18 MEAN QNH PRESSURE IN HPA 1023.1 1015.6 1018.2 1017.5 1015.8 1012.4 1007.1 1008.7 1014.3 1019.0 1019.0 1017.9 1015.7 MAX. QNH PRESSURE IN HPA 1029.9 1027.3 1028.7 1029.1 1026.8 1020.6 1012.0 1016.7 1024.2 1027.2 1032.2 1037.7 1037.7 DAY 28 1 22 1 27 22 9 18 30 11 12 2 MIN. QNH PRESSURE IN HPA 1013.6 995.2 1007.2 1007.6 1006.2 1004.5 1001.4 998.5 1008.6 1012.2 1005.3 1007.0 995.2 DAY 13 23 16 22 3 4 29 1 10 30 23 18 MEAN QFF PRESSURE IN HPA 1023.3 1015.9 1018.4 1017.8 1016.1 1012.8 1007.5 1009.1 1014.8 1019.3 1019.3 1018.2 1016.1 MAX. QFF PRESSURE IN HPA 1030.1 1027.6 1029.0 1029.4 1027.2 1020.9 1012.4 1017.0 1024.5 1027.5 1032.5 1038.0 1038.0 DAY 28 1 22 1 27 22 9 18 30 11 12 2 MIN. QFF PRESSURE IN HPA 1013.8 995.6 1007.4 1007.9 1006.5 1004.9 1001.8 998.9 1009.0 1012.5 1005.6 1007.2 995.6 DAY 13 23 16 22 3 4 29 1 10 30 23 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1027.3 1019.2 1021.5 1021.0 1019.1 1015.4 1010.3 1011.9 1017.8 1022.5 1022.5 1021.7 1019.2 MAX. QFE PRESSURE IN HPA 1038.6 1030.4 1032.8 1031.7 1028.8 1023.5 1015.0 1019.7 1027.5 1030.6 1036.3 1042.6 1042.6 DAY 9 1 22 1 27 22 9 21 30 11 12 2 MIN. QFE PRESSURE IN HPA 1017.2 1002.9 1012.0 1010.1 1010.1 1007.6 1004.7 1004.6 1011.4 1015.3 1010.7 1010.5 1002.9 DAY 16 23 16 22 3 4 21 1 1 30 24 18 MEAN QNH PRESSURE IN HPA 1024.5 1016.4 1018.7 1018.2 1016.2 1012.6 1007.5 1009.1 1015.0 1019.7 1019.6 1018.8 1016.4 MAX. QNH PRESSURE IN HPA 1035.7 1027.5 1029.9 1028.8 1025.9 1020.7 1012.2 1016.9 1024.7 1027.7 1033.4 1039.7 1039.7 DAY 9 1 22 1 27 22 9 21 30 11 12 2 MIN. QNH PRESSURE IN HPA 1014.4 1000.1 1009.2 1007.3 1007.3 1004.8 1001.9 1001.8 1008.6 1012.5 1007.9 1007.7 1000.1 DAY 16 23 16 22 3 4 21 1 1 30 24 18 MEAN QFF PRESSURE IN HPA 1024.7 1016.7 1018.9 1018.5 1016.6 1013.0 1007.9 1009.5 1015.6 1020.0 1019.9 1019.1 1016.7 MAX. QFF PRESSURE IN HPA 1035.9 1027.8 1030.2 1029.1 1026.3 1021.0 1012.6 1017.3 1025.0 1028.0 1033.7 1039.9 1039.9 DAY 9 1 22 1 27 22 9 21 30 11 12 2 MIN. QFF PRESSURE IN HPA 1014.6 1000.4 1009.5 1007.7 1007.6 1005.2 1002.3 1002.2 1009.1 1012.8 1008.2 1007.9 1000.4 DAY 16 23 16 22 3 4 21 1 9 30 24 18 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1026.2 1018.6 1020.8 1020.6 1018.8 1015.2 1009.9 1011.4 1017.0 1021.7 1021.3 1020.6 1018.5 MAX. QFE PRESSURE IN HPA 1036.4 1028.9 1032.9 1030.7 1027.9 1023.0 1015.2 1019.5 1026.7 1029.9 1034.7 1041.2 1041.2 DAY 9 1 22 23 27 21 8 17 30 11 12 2 MIN. QFE PRESSURE IN HPA 1015.2 1006.1 1011.5 1008.0 1009.3 1008.0 1004.7 1004.0 1010.5 1015.3 1007.6 1010.1 1004.0 DAY 16 11 16 22 3 29 21 6 1 7 24 18 MEAN QNH PRESSURE IN HPA 1023.4 1015.8 1018.0 1017.8 1016.0 1012.4 1007.1 1008.6 1014.2 1018.8 1018.5 1017.7 1015.7 MAX. QNH PRESSURE IN HPA 1033.5 1026.0 1030.0 1027.8 1025.0 1020.2 1012.4 1016.7 1023.9 1027.0 1031.8 1038.3 1038.3 DAY 9 1 22 23 27 21 8 17 30 11 12 2 MIN. QNH PRESSURE IN HPA 1012.4 1003.3 1008.7 1005.2 1006.5 1005.2 1001.9 1001.2 1007.7 1012.5 1004.8 1007.3 1001.2 DAY 16 11 16 22 3 29 21 6 1 7 24 18 MEAN QFF PRESSURE IN HPA 1023.6 1016.1 1018.2 1018.0 1016.3 1012.8 1007.5 1009.0 1014.8 1019.2 1018.8 1018.0 1016.0 MAX. QFF PRESSURE IN HPA 1033.8 1026.3 1030.3 1028.1 1025.4 1020.5 1012.8 1017.0 1024.2 1027.4 1032.1 1038.5 1038.5 DAY 9 1 22 23 27 21 8 17 30 11 12 2 MIN. QFF PRESSURE IN HPA 1012.6 1003.6 1009.0 1005.6 1006.8 1005.6 1002.3 1001.6 1008.5 1012.8 1005.1 1007.6 1001.6 DAY 16 11 16 22 3 30 29 6 9 7 24 18 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1025.7 1017.7 1020.2 1019.8 1018.4 1014.5 1009.2 1010.6 1016.4 1021.1 1020.7 1019.8 1017.8 MAX. QFE PRESSURE IN HPA 1035.7 1027.4 1032.4 1030.4 1028.4 1022.8 1014.6 1019.4 1025.1 1028.9 1034.3 1039.8 1039.8 DAY 9 1 22 12 26 21 8 17 30 10 12 2 MIN. QFE PRESSURE IN HPA 1014.3 1005.6 1010.8 1006.0 1009.0 1005.0 1004.1 1003.1 1009.7 1015.6 1006.8 1009.5 1003.1 DAY 16 11 11 22 3 4 29 1 1 6 24 18 MEAN QNH PRESSURE IN HPA 1022.8 1014.9 1017.4 1017.0 1015.6 1011.7 1006.4 1007.7 1013.6 1018.3 1017.8 1016.9 1015.0 MAX. QNH PRESSURE IN HPA 1032.8 1024.6 1029.5 1027.5 1025.5 1020.0 1011.8 1016.6 1022.3 1026.0 1031.4 1036.9 1036.9 DAY 9 1 22 12 26 21 8 17 30 10 12 2 MIN. QNH PRESSURE IN HPA 1011.5 1002.8 1008.0 1003.2 1006.2 1002.2 1001.3 1000.3 1006.9 1012.8 1004.0 1006.7 1000.3 DAY 16 11 11 22 3 4 29 1 1 6 24 18 MEAN QFF PRESSURE IN HPA 1023.1 1015.2 1017.6 1017.3 1015.9 1012.1 1006.8 1008.2 1013.9 1018.7 1018.1 1017.2 1015.3 MAX. QFF PRESSURE IN HPA 1033.1 1024.8 1029.8 1027.8 1025.9 1020.3 1012.2 1016.9 1022.6 1026.4 1031.7 1037.2 1037.2 DAY 9 18 22 12 26 21 9 17 30 10 12 2 MIN. QFF PRESSURE IN HPA 1011.7 1003.1 1008.2 1003.6 1006.5 1002.6 1001.7 1000.7 1007.3 1013.1 1004.3 1007.0 1000.7 DAY 16 11 11 22 3 4 29 1 1 30 24 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1026.3 1018.4 1020.6 1019.5 1018.2 1013.9 1009.1 1010.3 1016.5 1021.5 1021.7 1020.4 1018.0 MAX. QFE PRESSURE IN HPA 1035.1 1027.5 1032.6 1030.4 1029.9 1021.3 1014.8 1019.9 1025.2 1029.4 1035.3 1039.3 1039.3 DAY 9 18 22 12 26 22 8 17 29 10 11 2 MIN. QFE PRESSURE IN HPA 1016.4 1005.2 1009.7 1006.0 1008.7 1005.0 1003.9 1002.4 1010.0 1015.4 1009.6 1010.0 1002.4 DAY 16 11 11 22 3 4 31 1 5 6 22 18 MEAN QNH PRESSURE IN HPA 1023.5 1015.5 1017.7 1016.7 1015.4 1011.1 1006.2 1007.5 1013.7 1018.6 1018.8 1017.6 1015.2 MAX. QNH PRESSURE IN HPA 1032.2 1024.7 1029.7 1027.5 1027.0 1018.5 1012.0 1017.1 1022.4 1026.5 1032.4 1036.4 1036.4 DAY 9 18 22 12 26 22 8 17 29 10 11 2 MIN. QNH PRESSURE IN HPA 1013.6 1002.4 1006.9 1003.2 1005.9 1002.2 1001.1 999.6 1007.2 1012.6 1006.8 1007.2 999.6 DAY 16 11 11 22 3 4 31 1 5 6 22 18 MEAN QFF PRESSURE IN HPA 1023.4 1015.8 1018.0 1017.0 1015.7 1011.5 1006.7 1007.9 1014.1 1019.0 1019.1 1017.9 1015.5 MAX. QFF PRESSURE IN HPA 1032.0 1024.9 1030.0 1027.8 1027.4 1018.8 1012.4 1017.4 1022.7 1026.8 1032.7 1036.6 1036.6 DAY 8 18 22 12 26 22 8 17 29 10 11 2 MIN. QFF PRESSURE IN HPA 1013.8 1002.7 1007.1 1003.5 1006.2 1002.6 1001.5 1000.0 1007.6 1012.9 1007.1 1007.5 1000.0 DAY 16 11 11 22 3 4 31 1 5 6 22 18 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1026.6 1019.1 1021.2 1019.8 1018.7 1014.6 1009.4 1010.9 1017.2 1021.9 1022.2 1020.6 1018.5 MAX. QFE PRESSURE IN HPA 1036.5 1029.0 1032.8 1031.0 1031.6 1023.8 1015.1 1021.6 1026.7 1031.6 1035.9 1042.0 1042.0 DAY 8 28 22 12 26 21 8 17 29 10 11 1 MIN. QFE PRESSURE IN HPA 1018.5 1004.0 1011.7 1006.7 1009.2 1005.9 1003.3 1002.3 1011.1 1015.5 1008.5 1010.3 1002.3 DAY 24 22 11 22 3 28 31 13 1 6 22 17 MEAN QNH PRESSURE IN HPA 1023.7 1016.3 1018.4 1017.0 1015.9 1011.8 1006.6 1008.1 1014.4 1019.0 1019.3 1017.8 1015.7 MAX. QNH PRESSURE IN HPA 1033.6 1026.1 1029.9 1028.1 1028.7 1021.0 1012.3 1018.8 1023.9 1028.7 1033.0 1039.1 1039.1 DAY 8 28 22 12 26 21 8 17 29 10 11 1 MIN. QNH PRESSURE IN HPA 1015.7 1001.2 1008.9 1003.9 1006.4 1003.1 1000.5 999.5 1008.3 1012.7 1005.7 1007.5 999.5 DAY 24 22 11 22 3 28 31 13 1 6 22 17 MEAN QFF PRESSURE IN HPA 1023.9 1016.5 1018.6 1017.3 1016.2 1012.2 1007.0 1008.5 1014.8 1019.4 1019.6 1018.0 1016.0 MAX. QFF PRESSURE IN HPA 1033.8 1026.4 1030.2 1028.4 1029.1 1021.3 1012.7 1019.1 1024.2 1029.1 1033.3 1039.4 1039.4 DAY 8 28 22 12 26 21 8 17 29 10 11 1 MIN. QFF PRESSURE IN HPA 1015.9 1001.5 1009.1 1004.3 1006.7 1003.5 1000.9 1000.0 1008.7 1013.0 1006.0 1007.7 1000.0 DAY 24 22 11 22 3 28 31 13 1 6 22 17 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1026.3 1018.6 1021.1 1019.3 1018.4 1014.5 1009.5 1011.0 1017.1 1021.7 1022.0 1020.5 1018.3 MAX. QFE PRESSURE IN HPA 1036.9 1028.6 1032.5 1030.8 1031.1 1023.9 1015.2 1021.4 1026.9 1030.2 1035.7 1042.5 1042.5 DAY 8 28 22 12 26 21 8 17 29 10 11 1 MIN. QFE PRESSURE IN HPA 1019.0 999.4 1010.1 1009.6 1009.0 1006.3 1003.2 1001.9 1011.4 1015.5 1008.0 1009.6 999.4 DAY 15 22 15 21 2 28 31 13 1 6 22 17 MEAN QNH PRESSURE IN HPA 1023.4 1015.8 1018.3 1016.4 1015.6 1011.7 1006.7 1008.1 1014.3 1018.8 1019.2 1017.6 1015.5 MAX. QNH PRESSURE IN HPA 1034.0 1025.7 1029.6 1027.9 1028.2 1021.1 1012.4 1018.6 1024.1 1027.3 1032.8 1039.6 1039.6 DAY 8 28 22 12 26 21 8 17 29 10 11 1 MIN. QNH PRESSURE IN HPA 1016.2 996.6 1007.3 1006.8 1006.2 1003.5 1000.4 999.1 1008.6 1012.7 1005.2 1006.8 996.6 DAY 15 22 15 21 2 28 31 13 1 6 22 17 MEAN QFF PRESSURE IN HPA 1023.7 1016.1 1018.6 1016.7 1015.9 1012.1 1007.1 1008.6 1014.7 1019.2 1019.5 1017.9 1015.8 MAX. QFF PRESSURE IN HPA 1034.3 1026.0 1029.9 1028.2 1028.6 1021.4 1012.8 1018.9 1024.4 1027.7 1033.1 1039.9 1039.9 DAY 8 28 22 12 26 21 8 17 29 10 11 1 MIN. QFF PRESSURE IN HPA 1016.4 996.9 1007.5 1007.1 1006.5 1003.9 1000.8 999.5 1009.0 1013.0 1005.5 1007.0 996.9 DAY 24 22 15 21 2 28 31 13 1 6 22 17 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.7 7.3 7.9 13.4 17.3 22.5 24.9 26.0 21.4 17.3 12.6 7.8 15.5 MINIMUN AIR TEMPERATURE (C) 4.2 4.8 5.8 10.5 13.8 18.3 21.5 21.8 18.1 13.3 8.6 4.7 12.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 6 24 27 8 0 0 0 65 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 1 0 0 0 0 0 0 0 0 0 2 4 TEMPERATURE RECORDS LOWEST(C) 0.0 0.0 2.0 1.0 8.0 13.0 19.0 19.0 10.0 8.0 3.0 0.0 0.0 DAY 20 13 25 2 2 5 3 2 27 30 14 13 MAXIMUM AIR TEMPERATURE (C) 12.3 10.2 10.4 17.7 20.9 26.4 28.9 30.3 25.7 21.8 17.8 12.1 19.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 2 10 21 4 0 0 0 37 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 15.0 17.0 21.0 29.0 29.0 30.0 32.0 33.0 33.0 26.0 27.0 27.0 33.0 DAY 20 5 7 11 2 23 18 26 15 15 4 5 DIF. BETWEEN (MAX.-MIN.) (C) 8.1 5.4 4.6 7.2 7.1 8.1 7.4 8.5 7.6 8.5 9.2 7.4 7.4 MEAN DAILY TEMP. (MDT) (C) 8.2 7.5 8.1 14.1 17.3 22.3 25.2 26.0 21.9 17.6 13.2 8.4 15.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.5 0.0 48.0 129.5 156.5 57.5 0.0 0.0 0.0 393.0 HEATING DEG. DAYS(BASE 18 0C) 303.0 303.5 307.0 126.5 32.0 0.0 0.0 0.0 10.5 30.5 145.0 297.5 1555.5 DEWPOINT (MEAN C) 4.7 4.3 4.3 9.2 13.0 16.8 19.9 21.6 18.1 14.8 9.7 5.0 11.8 MIXING RATIO (G/KG) 5.30 5.17 5.16 7.30 9.37 12.12 14.63 16.33 13.25 10.57 7.54 5.49 9.35 VAPOUR PRESSURE (HPA) 8.63 8.41 8.40 11.79 15.10 19.39 23.26 25.93 21.19 17.06 12.23 8.96 15.03 SATURATION DEF. (HPA) 2.10 1.97 2.34 4.07 4.92 8.32 8.66 8.10 4.99 3.13 2.87 1.98 4.46 RELATIVE HUMIDITY (MEAN %) 82 82 79 77 77 72 75 78 83 86 83 84 80 RELATIVE HUMIDITY (MAX. %) 92 92 91 89 91 89 90 91 94 95 94 93 92 RELATIVE HUMIDITY (MIN. %) 64 68 65 63 62 54 58 63 66 71 67 68 64 RELATIVE HUMIDITY (MEAN% 03UTC) 89 88 87 86 88 85 84 88 91 94 91 89 88 RELATIVE HUMIDITY (MEAN% 09UTC) 66 74 69 66 67 59 64 65 73 73 69 73 68 RELATIVE HUMIDITY (MEAN% 15UTC) 81 79 77 74 72 64 69 72 81 84 84 84 77 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 42.0 152.7 93.2 34.5 9.6 0.0 53.1 9.3 135.4 49.3 99.0 159.0 837.1 DAYS WITH PRECIPITATION >=10 2 5 3 1 0 0 2 0 6 3 4 6 32 DAYS WITH PRECIPITATION >= 5 3 9 10 2 1 0 4 0 8 5 6 11 59 DAYS WITH PRECIPITATION >= 1 6 14 14 4 2 0 6 4 14 6 9 13 92 DAYS WITH PRECIPITATION 6 16 20 11 9 3 12 6 21 9 11 15 139 GREATEST DAILY PRECIPITATION 14.0 48.0 13.0 22.0 8.0 0.0 25.0 3.0 43.0 11.0 35.0 47.0 48.0 DAY 15 12 24 1 26 ** 21 18 26 20 12 11 DAY WITH THUNDER STORM 0 0 0 0 0 0 2 0 3 0 0 0 5 DAYS WITH SNOW OR SLEET 0 0 1 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 0 0 0 0 0 0 1 0 1 0 0 0 2 WIND DIRECTION (PREVAILING) 270 270 270 270 270 315 270 315 270 270 270 270 270 PREVAILING WIND SPEED(KNOTS) 3.1 3.7 5.1 4.7 4.1 3.4 3.4 3.5 3.3 2.6 3.2 3.3 3.6 PREVAILING WIND PERCENT 43.1 34.1 42.7 39.2 37.5 42.9 55.2 45.2 45.8 39.1 33.8 39.9 41.1 CALMS PERCENT OF WIND 1.2 0.4 0.0 0.0 0.0 0.0 0.0 0.4 0.0 0.4 1.7 0.4 0.4 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 308 312 308 305 307 301 287 292 290 287 303 296 299 VECTOR WIND MAGNITUDE(KNOTS) 1.5 1.6 2.4 2.3 2.8 2.8 3.1 3.1 2.4 1.7 1.4 1.7 2.2 WIND STEADINESES (MEAN %) 45.5 42.1 51.1 53.5 68.3 82.4 86.1 86.1 70.6 54.8 43.7 51.5 61.1 WIND SPEED (MEAN KNOTS) 3.3 3.8 4.7 4.3 4.1 3.4 3.6 3.6 3.4 3.1 3.2 3.3 3.6 FASTEST WIND DIRECTION 270 40 270 90 290 270 270 270 360 270 90 270 90 FASTEST WIND SPEED (KNOTS) 12 9 20 40 12 22 8 14 15 10 15 22 40 DAY 31 6 13 21 4 9 15 27 25 17 23 11 DAYS WITH SKY CLEAR (0-2)/8 16 5 4 6 15 19 14 20 10 20 10 10 149 DAYS WITH P.CLOUDY (3-6)/8 8 7 7 7 9 8 9 9 7 5 9 8 93 DAYS WITH CLOUDY (7-8)/8 7 17 20 17 7 3 8 2 13 6 11 13 124 DAYS WITH VISIBILITY =< 2 KM 2 1 2 3 1 0 0 2 0 0 3 2 16 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1022.4 1021.7 1021.3 1017.5 1017.3 1015.5 1012.6 1013.9 1018.1 1022.3 1022.6 1026.8 1019.3 MAX. QFE PRESSURE IN HPA 1033.7 1034.4 1031.4 1030.9 1023.6 1024.7 1020.3 1022.1 1032.1 1031.4 1040.0 1038.6 1040.0 DAY-HOUR 22- 0 26-15 13-21 1- 6 21-18 11- 6 29- 6 29- 6 26- 6 25- 6 12- 6 19- 6 MIN. QFE PRESSURE IN HPA 1003.9 1005.7 1010.3 1001.4 1007.2 999.6 1002.0 1004.2 1005.9 1012.8 1003.4 1002.4 999.6 DAY-HOUR 30-12 7-18 8- 0 26- 0 3- 0 26- 0 19-12 3-21 13- 9 15- 9 8- 0 5- 9 MEAN QNH PRESSURE IN HPA 1019.6 1018.9 1018.4 1014.7 1014.5 1012.7 1009.8 1011.0 1015.2 1019.5 1019.8 1024.0 1016.5 MAX. QNH PRESSURE IN HPA 1030.8 1031.5 1028.5 1028.0 1020.8 1021.9 1017.5 1019.3 1029.2 1028.5 1037.1 1035.7 1037.1 DAY-HOUR 22- 0 26-15 13-21 1- 6 21-18 11- 6 29- 6 29- 6 26- 6 25- 6 12- 6 19- 6 MIN. QNH PRESSURE IN HPA 1001.1 1002.9 1007.5 998.6 1004.4 996.8 999.2 1001.4 1003.1 1010.0 1000.6 999.6 996.8 DAY-HOUR 30-12 7-18 8- 0 26- 0 3- 0 26- 0 19-12 3-21 13- 9 15- 9 8- 0 5- 9 MEAN QFF PRESSURE IN HPA 1019.8 1019.1 1018.7 1015.0 1014.8 1013.1 1010.2 1011.5 1015.6 1019.8 1020.1 1024.2 1016.8 MAX. QFF PRESSURE IN HPA 1031.1 1031.7 1028.8 1028.2 1021.1 1022.2 1017.9 1019.7 1029.6 1028.8 1037.4 1035.9 1037.4 DAY-HOUR 22- 0 26-15 13-21 1- 6 21-18 11- 6 29-21 29- 6 26- 6 25- 6 12- 6 19- 6 MIN. QFF PRESSURE IN HPA 1001.4 1003.1 1007.8 999.0 1004.8 997.2 999.6 1001.8 1003.5 1010.4 1000.9 999.9 997.2 DAY-HOUR 30-12 7-18 8- 0 26- 0 3- 0 26- 0 19-12 4- 0 13- 9 15- 9 8- 0 5- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1022.4 1021.4 1020.9 1017.1 1017.0 1015.3 1012.7 1013.7 1017.5 1022.3 1022.0 1026.5 1019.1 MAX. QFE PRESSURE IN HPA 1033.7 1030.1 1030.8 1026.8 1021.6 1023.3 1019.6 1020.8 1030.1 1029.4 1037.3 1038.1 1038.1 DAY 22 13 14 2 16 12 30 29 29 25 13 19 MIN. QFE PRESSURE IN HPA 1006.8 1007.2 1010.3 1001.4 1007.2 999.6 1002.9 1004.2 1008.3 1014.5 1003.4 1007.2 999.6 DAY 31 29 8 26 3 26 19 4 13 11 8 8 MEAN QNH PRESSURE IN HPA 1019.5 1018.5 1018.1 1014.2 1014.2 1012.5 1009.9 1010.8 1014.6 1019.5 1019.2 1023.6 1016.2 MAX. QNH PRESSURE IN HPA 1030.8 1027.2 1027.9 1024.0 1018.8 1020.5 1016.8 1018.0 1027.2 1026.5 1034.4 1035.2 1035.2 DAY 22 13 14 2 16 12 30 29 29 25 13 19 MIN. QNH PRESSURE IN HPA 1004.0 1004.4 1007.5 998.6 1004.4 996.8 1000.1 1001.4 1005.5 1011.7 1000.6 1004.4 996.8 DAY 31 29 8 26 3 26 19 4 13 11 8 8 MEAN QFF PRESSURE IN HPA 1019.8 1018.8 1018.3 1014.5 1014.5 1012.9 1010.3 1011.3 1015.0 1019.8 1019.5 1023.8 1016.5 MAX. QFF PRESSURE IN HPA 1031.1 1027.4 1028.2 1024.2 1019.1 1020.8 1017.2 1018.4 1027.5 1026.9 1034.7 1035.5 1035.5 DAY 22 13 14 2 16 12 30 29 29 25 13 19 MIN. QFF PRESSURE IN HPA 1004.3 1004.7 1007.8 999.0 1004.8 997.2 1000.5 1001.8 1005.8 1012.0 1000.9 1004.7 997.2 DAY 31 29 8 26 3 26 19 4 13 11 8 8 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1022.7 1021.6 1021.1 1017.6 1017.6 1015.9 1013.1 1014.4 1018.2 1022.6 1023.1 1027.2 1019.6 MAX. QFE PRESSURE IN HPA 1033.3 1030.5 1030.9 1028.6 1022.7 1023.7 1019.8 1021.3 1031.0 1030.7 1037.6 1038.1 1038.1 DAY 22 12 14 1 15 13 29 29 29 25 12 19 MIN. QFE PRESSURE IN HPA 1008.3 1006.4 1011.2 1003.1 1008.6 1001.1 1002.9 1005.5 1006.5 1014.8 1004.7 1006.5 1001.1 DAY 30 29 4 26 3 26 19 4 13 11 8 5 MEAN QNH PRESSURE IN HPA 1019.8 1018.8 1018.3 1014.7 1014.8 1013.1 1010.3 1011.6 1015.3 1019.7 1020.3 1024.4 1016.8 MAX. QNH PRESSURE IN HPA 1030.4 1027.6 1028.0 1025.7 1019.9 1020.9 1017.0 1018.5 1028.1 1027.8 1034.7 1035.2 1035.2 DAY 22 12 14 1 15 13 29 29 29 25 12 19 MIN. QNH PRESSURE IN HPA 1005.5 1003.6 1008.4 1000.3 1005.8 998.3 1000.1 1002.7 1003.7 1012.0 1001.9 1003.7 998.3 DAY 30 29 4 26 3 26 19 4 13 11 8 5 MEAN QFF PRESSURE IN HPA 1020.1 1019.0 1018.5 1015.0 1015.1 1013.4 1010.7 1012.0 1015.7 1020.0 1020.5 1024.6 1017.1 MAX. QFF PRESSURE IN HPA 1030.7 1027.8 1028.3 1026.0 1020.2 1021.2 1017.4 1018.9 1028.4 1028.1 1035.0 1035.5 1035.5 DAY 22 12 14 1 15 13 29 29 29 25 12 19 MIN. QFF PRESSURE IN HPA 1005.7 1003.9 1008.6 1000.7 1006.1 998.7 1000.5 1003.1 1004.0 1012.3 1002.2 1003.9 998.7 DAY 30 29 4 26 3 26 19 4 13 11 8 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1023.5 1022.4 1021.9 1018.2 1018.0 1016.2 1013.3 1015.0 1018.9 1023.1 1024.1 1028.0 1020.2 MAX. QFE PRESSURE IN HPA 1033.4 1032.1 1031.1 1030.9 1023.2 1024.7 1020.3 1022.1 1032.1 1031.4 1040.0 1038.6 1040.0 DAY 22 26 14 1 15 11 29 29 26 25 12 19 MIN. QFE PRESSURE IN HPA 1008.3 1009.8 1011.5 1003.8 1010.0 1005.5 1002.9 1006.2 1006.3 1015.1 1006.5 1005.5 1002.9 DAY 30 10 4 26 3 26 19 4 13 15 8 5 MEAN QNH PRESSURE IN HPA 1020.7 1019.6 1019.1 1015.4 1015.2 1013.4 1010.5 1012.2 1016.0 1020.3 1021.3 1025.2 1017.4 MAX. QNH PRESSURE IN HPA 1030.5 1029.2 1028.2 1028.0 1020.4 1021.9 1017.5 1019.3 1029.2 1028.5 1037.1 1035.7 1037.1 DAY 22 26 14 1 15 11 29 29 26 25 12 19 MIN. QNH PRESSURE IN HPA 1005.5 1007.0 1008.7 1001.0 1007.2 1002.7 1000.1 1003.4 1003.5 1012.3 1003.7 1002.7 1000.1 DAY 30 10 4 26 3 26 19 4 13 15 8 5 MEAN QFF PRESSURE IN HPA 1020.9 1019.8 1019.3 1015.7 1015.5 1013.8 1010.9 1012.6 1016.4 1020.6 1021.5 1025.4 1017.7 MAX. QFF PRESSURE IN HPA 1030.8 1029.4 1028.5 1028.2 1020.7 1022.2 1017.9 1019.7 1029.6 1028.8 1037.4 1035.9 1037.4 DAY 22 26 14 1 15 11 29 29 26 25 12 19 MIN. QFF PRESSURE IN HPA 1005.7 1007.2 1008.9 1001.3 1007.5 1003.1 1000.5 1003.8 1003.9 1012.6 1004.0 1003.0 1000.5 DAY 30 10 4 26 3 26 19 4 13 15 8 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1022.3 1021.9 1021.3 1017.4 1017.6 1015.9 1012.8 1014.3 1018.2 1022.1 1022.8 1026.9 1019.5 MAX. QFE PRESSURE IN HPA 1030.8 1033.0 1029.6 1030.7 1022.9 1024.5 1019.8 1021.3 1032.0 1030.2 1039.8 1037.6 1039.8 DAY 22 26 19 1 15 11 29 29 26 25 12 18 MIN. QFE PRESSURE IN HPA 1005.9 1009.5 1010.8 1006.2 1008.7 1007.0 1002.8 1005.9 1005.9 1012.8 1004.8 1002.4 1002.4 DAY 30 10 4 26 3 25 19 25 13 15 8 5 MEAN QNH PRESSURE IN HPA 1019.5 1019.1 1018.5 1014.6 1014.8 1013.1 1010.0 1011.5 1015.4 1019.3 1019.9 1024.0 1016.6 MAX. QNH PRESSURE IN HPA 1027.9 1030.1 1026.7 1027.8 1020.1 1021.7 1017.0 1018.5 1029.1 1027.3 1036.9 1034.7 1036.9 DAY 22 26 19 1 15 11 29 29 26 25 12 18 MIN. QNH PRESSURE IN HPA 1003.1 1006.7 1008.0 1003.4 1005.9 1004.2 1000.0 1003.1 1003.1 1010.0 1002.0 999.6 999.6 DAY 30 10 4 26 3 25 19 25 13 15 8 5 MEAN QFF PRESSURE IN HPA 1019.8 1019.3 1018.7 1014.9 1015.1 1013.5 1010.4 1011.9 1015.8 1019.6 1020.2 1024.2 1017.0 MAX. QFF PRESSURE IN HPA 1028.2 1030.3 1027.0 1028.1 1020.4 1022.0 1017.4 1018.9 1029.5 1027.7 1037.2 1035.0 1037.2 DAY 22 26 19 1 15 11 29 29 26 25 12 18 MIN. QFF PRESSURE IN HPA 1003.4 1007.0 1008.3 1003.7 1006.2 1004.6 1000.4 1003.5 1003.5 1010.4 1002.3 999.9 999.9 DAY 30 10 4 26 3 25 19 25 13 15 8 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1021.7 1021.3 1020.8 1017.3 1017.2 1015.3 1012.0 1013.5 1017.7 1021.8 1022.1 1026.1 1018.9 MAX. QFE PRESSURE IN HPA 1030.0 1032.9 1028.6 1030.0 1022.6 1023.6 1018.9 1020.7 1031.4 1029.3 1039.5 1037.1 1039.5 DAY 16 26 19 1 21 11 29 8 26 25 12 18 MIN. QFE PRESSURE IN HPA 1003.9 1008.0 1010.4 1005.0 1007.7 1004.9 1002.0 1004.5 1006.6 1013.4 1005.7 1002.7 1002.0 DAY 30 7 4 26 3 25 19 25 13 31 8 5 MEAN QNH PRESSURE IN HPA 1018.8 1018.4 1018.0 1014.5 1014.4 1012.5 1009.2 1010.7 1014.8 1018.9 1019.2 1023.2 1016.1 MAX. QNH PRESSURE IN HPA 1027.1 1030.0 1025.7 1027.1 1019.8 1020.8 1016.1 1017.9 1028.5 1026.4 1036.6 1034.2 1036.6 DAY 16 26 19 1 21 11 29 8 26 25 12 18 MIN. QNH PRESSURE IN HPA 1001.1 1005.2 1007.6 1002.2 1004.9 1002.1 999.2 1001.7 1003.8 1010.6 1002.9 999.9 999.2 DAY 30 7 4 26 3 25 19 25 13 31 8 5 MEAN QFF PRESSURE IN HPA 1019.1 1018.7 1018.2 1014.8 1014.7 1012.9 1009.6 1011.1 1015.2 1019.3 1019.5 1023.5 1016.4 MAX. QFF PRESSURE IN HPA 1027.4 1030.2 1026.0 1027.4 1020.1 1021.1 1016.5 1018.3 1028.8 1026.8 1036.9 1034.5 1036.9 DAY 16 26 19 1 21 11 29 8 26 25 12 18 MIN. QFF PRESSURE IN HPA 1001.4 1005.5 1007.9 1002.5 1005.2 1002.5 999.6 1002.1 1004.2 1010.9 1003.2 1000.2 999.6 DAY 30 7 4 26 3 25 19 25 13 31 8 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1022.2 1021.8 1021.3 1017.5 1016.7 1014.9 1011.5 1013.0 1017.8 1022.1 1022.4 1026.6 1019.0 MAX. QFE PRESSURE IN HPA 1030.4 1034.4 1029.4 1029.9 1022.9 1023.5 1018.9 1020.5 1031.1 1029.4 1039.8 1038.1 1039.8 DAY 16 26 13 1 21 11 29 8 26 25 12 18 MIN. QFE PRESSURE IN HPA 1004.1 1007.8 1012.2 1004.3 1008.0 1003.0 1002.8 1004.3 1007.3 1014.3 1005.2 1008.0 1002.8 DAY 30 7 29 25 3 25 19 25 15 10 8 9 MEAN QNH PRESSURE IN HPA 1019.4 1019.0 1018.5 1014.6 1013.9 1012.1 1008.7 1010.2 1014.9 1019.3 1019.6 1023.8 1016.2 MAX. QNH PRESSURE IN HPA 1027.5 1031.5 1026.5 1027.0 1020.1 1020.7 1016.1 1017.7 1028.2 1026.5 1036.9 1035.2 1036.9 DAY 16 26 13 1 21 11 29 8 26 25 12 18 MIN. QNH PRESSURE IN HPA 1001.3 1005.0 1009.4 1001.5 1005.2 1000.2 1000.0 1001.5 1004.5 1011.5 1002.4 1005.2 1000.0 DAY 30 7 29 25 3 25 19 25 15 10 8 9 MEAN QFF PRESSURE IN HPA 1019.6 1019.2 1018.7 1014.9 1014.2 1012.5 1009.1 1010.6 1015.3 1019.6 1019.9 1024.0 1016.5 MAX. QFF PRESSURE IN HPA 1027.8 1031.7 1026.8 1027.2 1020.4 1021.0 1016.5 1018.1 1028.5 1026.8 1037.2 1035.4 1037.2 DAY 16 26 13 1 21 11 29 8 26 25 12 18 MIN. QFF PRESSURE IN HPA 1001.5 1005.2 1009.6 1001.9 1005.5 1000.6 1000.4 1001.9 1004.9 1011.8 1002.7 1005.5 1000.4 DAY 30 7 29 25 3 25 19 25 15 10 8 9 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1022.5 1021.9 1021.6 1018.0 1017.3 1015.5 1012.7 1013.6 1018.4 1022.4 1022.3 1026.9 1019.4 MAX. QFE PRESSURE IN HPA 1032.6 1033.3 1030.9 1028.9 1023.6 1024.4 1019.9 1021.1 1030.6 1029.4 1039.3 1038.0 1039.3 DAY 21 26 13 1 21 11 29 8 28 25 12 18 MIN. QFE PRESSURE IN HPA 1004.2 1005.7 1012.4 1007.2 1008.1 1000.9 1004.7 1004.4 1008.1 1014.1 1004.7 1008.0 1000.9 DAY 30 7 7 25 3 25 18 3 14 10 7 9 MEAN QNH PRESSURE IN HPA 1019.7 1019.1 1018.8 1015.1 1014.5 1012.6 1009.9 1010.8 1015.6 1019.6 1019.5 1024.0 1016.6 MAX. QNH PRESSURE IN HPA 1029.7 1030.4 1028.0 1026.0 1020.8 1021.6 1017.1 1018.3 1027.7 1026.5 1036.4 1035.1 1036.4 DAY 21 26 13 1 21 11 29 8 28 25 12 18 MIN. QNH PRESSURE IN HPA 1001.4 1002.9 1009.6 1004.4 1005.3 998.1 1001.9 1001.6 1005.3 1011.3 1001.9 1005.2 998.1 DAY 30 7 7 25 3 25 18 3 14 10 7 9 MEAN QFF PRESSURE IN HPA 1019.9 1019.3 1019.0 1015.4 1014.8 1013.0 1010.3 1011.2 1016.0 1019.9 1019.8 1024.2 1016.9 MAX. QFF PRESSURE IN HPA 1030.0 1030.6 1028.3 1026.3 1021.1 1021.9 1017.5 1018.7 1028.1 1026.8 1036.7 1035.3 1036.7 DAY 21 26 13 1 21 11 29 8 28 25 12 18 MIN. QFF PRESSURE IN HPA 1001.6 1003.1 1009.9 1004.7 1005.6 998.5 1002.3 1002.0 1005.7 1011.6 1002.2 1005.5 998.5 DAY 30 7 7 25 3 25 18 3 14 10 8 9 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1022.2 1021.6 1021.3 1017.3 1017.2 1015.4 1012.7 1013.6 1018.1 1022.3 1022.4 1026.7 1019.2 MAX. QFE PRESSURE IN HPA 1033.3 1031.8 1031.4 1027.6 1022.3 1023.9 1020.3 1020.9 1030.3 1028.8 1038.4 1037.5 1038.4 DAY 21 12 13 1 21 11 29 29 28 24 12 18 MIN. QFE PRESSURE IN HPA 1004.8 1006.2 1011.5 1003.3 1007.9 1000.5 1004.3 1004.2 1008.2 1014.3 1003.8 1007.9 1000.5 DAY 30 28 7 25 2 25 18 3 14 10 7 7 MEAN QNH PRESSURE IN HPA 1019.4 1018.8 1018.5 1014.4 1014.3 1012.6 1009.9 1010.8 1015.2 1019.5 1019.5 1023.9 1016.4 MAX. QNH PRESSURE IN HPA 1030.4 1028.9 1028.5 1024.8 1019.5 1021.1 1017.5 1018.1 1027.4 1025.9 1035.5 1034.6 1035.5 DAY 21 12 13 1 21 11 29 29 28 24 12 18 MIN. QNH PRESSURE IN HPA 1002.0 1003.4 1008.7 1000.5 1005.1 997.7 1001.5 1001.4 1005.4 1011.5 1001.0 1005.1 997.7 DAY 30 28 7 25 2 25 18 3 14 10 7 7 MEAN QFF PRESSURE IN HPA 1019.6 1019.0 1018.7 1014.7 1014.7 1012.9 1010.3 1011.2 1015.6 1019.8 1019.8 1024.1 1016.7 MAX. QFF PRESSURE IN HPA 1030.7 1029.1 1028.8 1025.0 1019.8 1021.4 1017.9 1018.5 1027.8 1026.3 1035.8 1034.9 1035.8 DAY 21 12 13 1 21 11 29 29 28 24 12 18 MIN. QFF PRESSURE IN HPA 1002.3 1003.6 1009.0 1000.9 1005.4 998.1 1001.9 1001.8 1005.8 1011.8 1001.3 1005.4 998.1 DAY 30 28 7 25 2 25 18 3 14 10 7 7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 5.4 7.6 9.3 13.2 20.3 22.6 25.2 25.9 24.7 17.9 11.5 8.4 16.0 MINIMUN AIR TEMPERATURE (C) 2.6 5.1 6.5 9.7 16.2 19.3 21.4 21.6 20.0 14.4 7.6 4.4 12.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 12 20 20 11 1 0 0 64 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 3 0 1 0 0 0 0 0 0 0 1 4 9 TEMPERATURE RECORDS LOWEST(C) -1.0 1.0 0.0 6.0 12.0 14.0 17.0 17.0 17.0 8.0 0.0 -1.0 -1.0 DAY 21 6 30 1 3 6 5 16 3 14 22 30 MAXIMUM AIR TEMPERATURE (C) 8.9 10.6 12.5 17.1 24.7 26.3 29.5 30.6 30.0 22.3 16.2 14.1 20.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 1 5 17 23 22 3 0 0 71 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 12.0 16.0 22.0 25.0 30.0 32.0 33.0 34.0 32.0 31.0 23.0 22.0 34.0 DAY 14 24 17 21 7 28 26 2 13 6 4 16 DIF. BETWEEN (MAX.-MIN.) (C) 6.3 5.5 6.0 7.4 8.5 7.0 8.1 9.0 10.0 7.9 8.6 9.7 7.8 MEAN DAILY TEMP. (MDT) (C) 5.8 7.9 9.5 13.4 20.4 22.8 25.4 26.1 25.0 18.4 11.9 9.2 16.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 17.5 72.5 137.0 159.5 121.0 21.5 0.0 0.0 529.0 HEATING DEG. DAYS(BASE 18 0C) 379.0 283.5 263.0 140.0 8.0 7.0 0.0 0.0 0.0 41.5 182.5 272.0 1576.5 DEWPOINT (MEAN C) 2.6 4.5 5.9 8.8 16.2 19.1 20.9 22.2 20.4 14.6 9.0 5.8 12.5 MIXING RATIO (G/KG) 4.55 5.25 5.77 7.11 11.63 14.04 15.71 17.01 15.08 10.60 7.28 5.82 9.99 VAPOUR PRESSURE (HPA) 7.44 8.57 9.38 11.54 18.63 22.41 24.93 26.97 24.06 17.11 11.83 9.46 16.03 SATURATION DEF. (HPA) 1.65 1.99 2.52 4.11 5.67 5.64 7.70 7.11 7.70 4.22 2.29 1.97 4.38 RELATIVE HUMIDITY (MEAN %) 83 82 80 76 79 82 78 81 78 82 85 85 81 RELATIVE HUMIDITY (MAX. %) 93 92 91 92 94 95 94 95 93 95 96 96 94 RELATIVE HUMIDITY (MIN. %) 67 65 66 58 61 67 61 65 61 65 69 67 64 RELATIVE HUMIDITY (MEAN% 03UTC) 89 90 86 89 91 91 92 92 92 94 94 92 91 RELATIVE HUMIDITY (MEAN% 09UTC) 69 74 71 63 65 71 65 70 63 68 71 71 68 RELATIVE HUMIDITY (MEAN% 15UTC) 83 77 79 72 76 76 69 74 70 79 84 87 77 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 142.4 70.8 90.8 15.6 22.8 118.9 67.0 106.5 20.0 229.4 132.0 79.0 1095.2 DAYS WITH PRECIPITATION >=10 5 4 2 0 1 3 2 3 1 7 5 3 36 DAYS WITH PRECIPITATION >= 5 9 4 6 1 1 5 2 3 2 7 7 4 51 DAYS WITH PRECIPITATION >= 1 12 6 10 6 5 7 3 3 3 9 8 5 77 DAYS WITH PRECIPITATION 15 10 15 11 13 12 5 5 4 13 9 6 118 GREATEST DAILY PRECIPITATION 29.0 26.0 35.0 5.0 12.0 58.0 40.0 54.0 12.0 49.0 30.0 29.0 58.0 DAY 3 5 29 5 29 5 4 15 28 12 9 27 DAY WITH THUNDER STORM 0 0 0 0 0 4 0 0 1 5 0 2 12 DAYS WITH SNOW OR SLEET 1 1 0 0 0 0 0 0 0 0 0 1 3 DAYS WITH DUST 0 1 0 2 0 0 1 0 0 0 0 0 4 WIND DIRECTION (PREVAILING) 270 270 270 315 45 360 315 315 360 45 90 90 270 PREVAILING WIND SPEED(KNOTS) 3.4 3.4 4.8 2.9 4.8 3.7 4.2 4.0 4.0 4.3 4.8 4.1 4.2 PREVAILING WIND PERCENT 49.6 40.6 31.5 35.8 16.1 19.2 13.3 15.7 12.9 19.4 14.2 12.9 17.9 CALMS PERCENT OF WIND 0.4 1.3 1.2 8.3 37.1 37.5 51.6 48.0 46.7 49.2 53.3 51.2 32.4 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 289 303 310 295 348 310 333 312 334 62 80 53 321 VECTOR WIND MAGNITUDE(KNOTS) 1.9 2.0 2.2 2.3 1.2 1.6 1.2 1.0 0.8 1.1 0.8 0.7 1.1 WIND STEADINESES (MEAN %) 57.6 58.8 55.0 69.7 40.0 61.5 60.0 52.6 38.1 52.4 40.0 35.0 40.7 WIND SPEED (MEAN KNOTS) 3.3 3.4 4.0 3.3 3.0 2.6 2.0 1.9 2.1 2.1 2.0 2.0 2.7 FASTEST WIND DIRECTION 100 360 360 270 230 270 70 310 270 90 360 310 100 FASTEST WIND SPEED (KNOTS) 28 9 12 20 15 25 18 10 17 17 18 15 28 DAY 12 23 18 22 19 5 2 14 27 11 21 12 DAYS WITH SKY CLEAR (0-2)/8 8 5 5 9 13 14 21 21 22 17 9 16 160 DAYS WITH P.CLOUDY (3-6)/8 9 10 10 9 11 5 7 4 7 8 13 8 101 DAYS WITH CLOUDY (7-8)/8 14 13 16 12 7 11 3 6 1 6 8 7 104 DAYS WITH VISIBILITY =< 2 KM 3 2 3 7 1 0 0 0 2 1 2 4 25 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1024.5 1024.2 1021.3 1021.4 1015.0 1016.4 1012.7 1014.0 1016.6 1023.0 1023.8 1022.8 1019.6 MAX. QFE PRESSURE IN HPA 1036.1 1034.5 1035.7 1031.4 1023.2 1024.0 1026.2 1020.3 1022.6 1037.1 1049.3 1037.0 1049.3 DAY-HOUR 3- 9 7- 3 29-18 5- 6 11- 9 20- 6 4-18 15- 6 21- 6 12-18 4- 9 22- 6 MIN. QFE PRESSURE IN HPA 1005.7 1008.6 1006.2 1012.5 1006.9 1008.7 1000.5 1005.8 1010.0 1010.8 1013.2 1007.7 1000.5 DAY-HOUR 19- 9 26-18 17-12 9-12 26- 0 28-15 2-12 7- 0 28-12 22-15 28-12 7- 0 MEAN QNH PRESSURE IN HPA 1021.6 1021.3 1018.5 1018.6 1012.1 1013.6 1009.9 1011.2 1013.8 1020.2 1020.9 1020.0 1016.8 MAX. QNH PRESSURE IN HPA 1033.2 1031.6 1032.8 1028.5 1020.4 1021.2 1023.4 1017.5 1019.8 1034.2 1046.4 1034.1 1046.4 DAY-HOUR 3- 9 7- 3 29-18 5- 6 11- 9 20- 6 4-18 15- 6 21- 6 12-18 4- 9 22- 6 MIN. QNH PRESSURE IN HPA 1002.9 1005.8 1003.4 1009.7 1004.1 1005.9 997.7 1003.0 1007.2 1008.0 1010.4 1004.9 997.7 DAY-HOUR 19- 9 26-18 17-12 9-12 26- 0 28-15 2-12 7- 0 28-12 22-15 28-12 7- 0 MEAN QFF PRESSURE IN HPA 1021.8 1021.6 1018.7 1018.8 1012.5 1014.0 1010.3 1011.6 1014.2 1020.5 1021.2 1020.2 1017.1 MAX. QFF PRESSURE IN HPA 1033.4 1031.8 1033.0 1028.8 1020.7 1021.5 1023.7 1017.8 1020.1 1034.5 1046.7 1034.3 1046.7 DAY-HOUR 3- 9 7- 6 29-18 5- 6 29- 6 20- 6 5- 3 15- 6 21- 6 12-18 4- 9 22- 6 MIN. QFF PRESSURE IN HPA 1003.1 1006.0 1003.7 1010.0 1004.5 1006.3 998.1 1003.4 1007.6 1008.3 1010.6 1005.1 998.1 DAY-HOUR 19- 9 26-18 17-12 9-12 26- 0 28-15 2-12 7- 0 28-12 22-15 28-12 19- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1024.4 1023.9 1020.9 1020.8 1014.4 1016.3 1012.5 1013.6 1016.2 1022.8 1023.7 1022.6 1019.3 MAX. QFE PRESSURE IN HPA 1033.7 1033.7 1031.9 1030.0 1021.4 1023.6 1025.7 1018.9 1020.9 1034.5 1036.7 1035.5 1036.7 DAY 4 7 30 5 12 20 5 16 10 13 24 22 MIN. QFE PRESSURE IN HPA 1007.5 1008.9 1009.7 1013.0 1006.9 1009.0 1000.9 1005.8 1010.0 1013.0 1014.4 1007.7 1000.9 DAY 19 27 17 20 26 29 3 7 29 23 15 7 MEAN QNH PRESSURE IN HPA 1021.6 1021.1 1018.0 1017.9 1011.6 1013.4 1009.7 1010.8 1013.4 1019.9 1020.8 1019.8 1016.5 MAX. QNH PRESSURE IN HPA 1030.8 1030.8 1029.0 1027.1 1018.6 1020.8 1022.9 1016.1 1018.1 1031.6 1033.8 1032.6 1033.8 DAY 4 7 30 5 12 20 5 16 10 13 24 22 MIN. QNH PRESSURE IN HPA 1004.7 1006.1 1006.9 1010.2 1004.1 1006.2 998.1 1003.0 1007.2 1010.2 1011.6 1004.9 998.1 DAY 19 27 17 20 26 29 3 7 29 23 15 7 MEAN QFF PRESSURE IN HPA 1021.8 1021.3 1018.3 1018.2 1011.9 1013.8 1010.1 1011.2 1013.8 1020.3 1021.1 1020.0 1016.8 MAX. QFF PRESSURE IN HPA 1031.0 1031.0 1029.2 1027.4 1018.9 1021.1 1023.2 1016.4 1018.5 1031.9 1034.1 1032.8 1034.1 DAY 4 7 30 5 12 20 5 16 10 13 24 22 MIN. QFF PRESSURE IN HPA 1004.9 1006.3 1007.1 1010.5 1004.5 1006.6 998.5 1003.4 1007.6 1010.5 1011.9 1005.2 998.5 DAY 19 27 17 20 26 29 3 7 29 23 15 7 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1024.8 1024.2 1021.1 1021.4 1014.9 1016.6 1013.1 1014.2 1016.9 1023.2 1023.9 1023.0 1019.8 MAX. QFE PRESSURE IN HPA 1034.5 1034.5 1030.6 1030.6 1021.8 1023.7 1026.2 1019.7 1021.7 1034.1 1036.7 1035.5 1036.7 DAY 23 7 30 5 12 20 5 11 10 12 24 22 MIN. QFE PRESSURE IN HPA 1007.3 1009.2 1009.2 1013.2 1007.7 1009.3 1003.3 1006.3 1011.0 1014.5 1016.0 1008.7 1003.3 DAY 19 27 17 20 26 29 12 7 29 23 15 19 MEAN QNH PRESSURE IN HPA 1022.0 1021.4 1018.2 1018.5 1012.1 1013.8 1010.3 1011.4 1014.1 1020.3 1021.0 1020.1 1016.9 MAX. QNH PRESSURE IN HPA 1031.6 1031.6 1027.7 1027.7 1019.0 1020.9 1023.4 1016.9 1018.9 1031.2 1033.8 1032.6 1033.8 DAY 23 7 30 5 12 20 5 11 10 12 24 22 MIN. QNH PRESSURE IN HPA 1004.5 1006.4 1006.4 1010.4 1004.9 1006.5 1000.5 1003.5 1008.2 1011.7 1013.2 1005.9 1000.5 DAY 19 27 17 20 26 29 12 7 29 23 15 19 MEAN QFF PRESSURE IN HPA 1022.2 1021.6 1018.5 1018.8 1012.4 1014.2 1010.7 1011.8 1014.5 1020.7 1021.3 1020.3 1017.2 MAX. QFF PRESSURE IN HPA 1031.8 1031.8 1027.9 1028.0 1019.3 1021.2 1023.7 1017.3 1019.3 1031.5 1034.0 1032.8 1034.0 DAY 23 7 30 5 12 20 5 11 10 12 24 22 MIN. QFF PRESSURE IN HPA 1004.7 1006.6 1006.6 1010.7 1005.3 1006.9 1000.9 1003.9 1008.6 1012.0 1013.5 1006.1 1000.9 DAY 19 27 17 20 26 29 12 7 29 23 15 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1025.6 1025.5 1021.9 1022.1 1015.5 1016.8 1013.4 1014.7 1017.8 1023.9 1024.5 1023.7 1020.5 MAX. QFE PRESSURE IN HPA 1036.0 1034.5 1031.9 1031.4 1023.2 1024.0 1026.1 1020.3 1022.6 1036.1 1036.3 1037.0 1037.0 DAY 23 7 29 5 29 20 5 15 21 12 24 22 MIN. QFE PRESSURE IN HPA 1006.6 1011.0 1008.3 1013.3 1008.3 1009.1 1003.5 1007.0 1011.4 1014.4 1016.9 1008.6 1003.5 DAY 19 27 17 9 25 28 12 8 28 22 14 19 MEAN QNH PRESSURE IN HPA 1022.7 1022.6 1019.1 1019.3 1012.7 1014.0 1010.6 1011.9 1015.0 1021.1 1021.7 1020.9 1017.6 MAX. QNH PRESSURE IN HPA 1033.1 1031.6 1029.0 1028.5 1020.4 1021.2 1023.3 1017.5 1019.8 1033.2 1033.4 1034.1 1034.1 DAY 23 7 29 5 29 20 5 15 21 12 24 22 MIN. QNH PRESSURE IN HPA 1003.8 1008.2 1005.5 1010.5 1005.5 1006.3 1000.7 1004.2 1008.6 1011.6 1014.1 1005.8 1000.7 DAY 19 27 17 9 25 28 12 8 28 22 14 19 MEAN QFF PRESSURE IN HPA 1022.9 1022.9 1019.3 1019.6 1013.1 1014.4 1011.0 1012.3 1015.4 1021.4 1021.9 1021.1 1017.9 MAX. QFF PRESSURE IN HPA 1033.3 1031.8 1029.2 1028.8 1020.7 1021.5 1023.6 1017.8 1020.1 1033.5 1033.7 1034.3 1034.3 DAY 23 7 29 5 29 20 5 15 21 12 24 22 MIN. QFF PRESSURE IN HPA 1004.0 1008.4 1005.8 1010.8 1005.9 1006.7 1001.1 1004.6 1009.0 1011.9 1014.4 1006.0 1001.1 DAY 19 27 17 9 25 28 12 8 28 22 14 19 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1024.3 1024.1 1021.6 1021.7 1015.6 1016.7 1013.2 1014.3 1017.1 1023.0 1024.2 1022.6 1019.9 MAX. QFE PRESSURE IN HPA 1036.1 1033.0 1033.4 1030.7 1023.2 1023.4 1025.2 1020.0 1021.0 1036.6 1049.3 1035.9 1049.3 DAY 3 7 29 5 11 20 5 11 10 12 4 22 MIN. QFE PRESSURE IN HPA 1005.7 1010.3 1007.0 1012.8 1007.8 1009.2 1004.2 1006.9 1010.8 1012.4 1014.6 1007.7 1004.2 DAY 19 26 17 9 25 28 2 8 28 22 30 19 MEAN QNH PRESSURE IN HPA 1021.5 1021.2 1018.8 1018.9 1012.7 1013.8 1010.4 1011.4 1014.3 1020.1 1021.4 1019.8 1017.0 MAX. QNH PRESSURE IN HPA 1033.2 1030.1 1030.5 1027.8 1020.4 1020.6 1022.4 1017.2 1018.2 1033.7 1046.4 1033.0 1046.4 DAY 3 7 29 5 11 20 5 11 10 12 4 22 MIN. QNH PRESSURE IN HPA 1002.9 1007.5 1004.2 1010.0 1005.0 1006.4 1001.4 1004.1 1008.0 1009.6 1011.8 1004.9 1001.4 DAY 19 26 17 9 25 28 2 8 28 22 30 19 MEAN QFF PRESSURE IN HPA 1021.7 1021.5 1019.1 1019.2 1013.1 1014.2 1010.8 1011.8 1014.7 1020.5 1021.7 1020.1 1017.4 MAX. QFF PRESSURE IN HPA 1033.4 1030.4 1030.7 1028.1 1020.7 1020.9 1022.7 1017.6 1018.6 1034.0 1046.7 1033.3 1046.7 DAY 3 7 29 5 11 20 5 11 10 12 4 22 MIN. QFF PRESSURE IN HPA 1003.1 1007.7 1004.5 1010.3 1005.4 1006.8 1001.8 1004.5 1008.4 1009.9 1012.0 1005.1 1001.8 DAY 19 26 17 9 25 29 2 8 28 22 30 19 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1023.7 1023.5 1021.1 1021.2 1014.9 1016.2 1012.4 1013.6 1016.3 1022.4 1022.9 1022.3 1019.2 MAX. QFE PRESSURE IN HPA 1034.5 1031.8 1034.6 1029.2 1022.9 1022.2 1024.1 1019.2 1020.5 1036.1 1036.4 1035.8 1036.4 DAY 23 3 29 22 29 20 5 11 9 12 21 21 MIN. QFE PRESSURE IN HPA 1007.8 1010.0 1006.2 1012.5 1007.8 1009.1 1000.5 1007.0 1010.0 1011.0 1013.2 1008.2 1000.5 DAY 19 26 17 9 25 29 2 7 28 22 28 19 MEAN QNH PRESSURE IN HPA 1020.8 1020.7 1018.3 1018.4 1012.1 1013.4 1009.6 1010.8 1013.5 1019.6 1020.0 1019.5 1016.4 MAX. QNH PRESSURE IN HPA 1031.6 1028.9 1031.7 1026.3 1020.1 1019.4 1021.3 1016.4 1017.7 1033.2 1033.5 1032.9 1033.5 DAY 23 3 29 22 29 20 5 11 9 12 21 21 MIN. QNH PRESSURE IN HPA 1005.0 1007.2 1003.4 1009.7 1005.0 1006.3 997.7 1004.2 1007.2 1008.2 1010.4 1005.4 997.7 DAY 19 26 17 9 25 29 2 7 28 22 28 19 MEAN QFF PRESSURE IN HPA 1021.1 1020.9 1018.5 1018.6 1012.4 1013.8 1010.0 1011.2 1013.9 1019.9 1020.3 1019.7 1016.7 MAX. QFF PRESSURE IN HPA 1031.8 1029.2 1031.9 1026.6 1020.4 1019.7 1021.6 1016.8 1018.1 1033.5 1033.7 1033.2 1033.7 DAY 23 3 29 22 29 20 5 11 9 12 21 21 MIN. QFF PRESSURE IN HPA 1005.2 1007.4 1003.7 1010.0 1005.4 1006.7 998.1 1004.6 1007.6 1008.5 1010.6 1005.6 998.1 DAY 19 26 17 9 25 29 2 7 28 22 28 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1957 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1024.4 1024.0 1021.3 1021.2 1014.6 1016.0 1012.1 1013.5 1016.2 1022.8 1023.6 1022.9 1019.4 MAX. QFE PRESSURE IN HPA 1035.0 1032.3 1035.6 1030.1 1022.4 1022.1 1024.2 1019.9 1020.5 1036.8 1037.5 1035.8 1037.5 DAY 23 7 29 4 29 5 4 15 9 12 21 21 MIN. QFE PRESSURE IN HPA 1009.8 1009.2 1007.5 1013.3 1008.3 1008.7 1001.0 1006.2 1010.5 1010.8 1014.0 1008.2 1001.0 DAY 18 26 17 9 25 28 2 7 28 22 28 19 MEAN QNH PRESSURE IN HPA 1021.5 1021.2 1018.4 1018.3 1011.8 1013.1 1009.2 1010.7 1013.3 1019.9 1020.8 1020.1 1016.5 MAX. QNH PRESSURE IN HPA 1032.1 1029.4 1032.7 1027.2 1019.6 1019.3 1021.4 1017.1 1017.7 1033.9 1034.6 1032.9 1034.6 DAY 23 7 29 4 29 5 4 15 9 12 21 21 MIN. QNH PRESSURE IN HPA 1007.0 1006.4 1004.7 1010.5 1005.5 1005.9 998.2 1003.4 1007.7 1008.0 1011.2 1005.4 998.2 DAY 18 26 17 9 25 28 2 7 28 22 28 19 MEAN QFF PRESSURE IN HPA 1021.7 1021.4 1018.7 1018.6 1012.1 1013.5 1009.6 1011.1 1013.7 1020.3 1021.0 1020.3 1016.8 MAX. QFF PRESSURE IN HPA 1032.3 1029.6 1032.9 1027.5 1019.9 1019.6 1021.7 1017.4 1018.1 1034.2 1034.8 1033.1 1034.8 DAY 23 7 29 4 29 5 4 15 9 12 21 21 MIN. QFF PRESSURE IN HPA 1007.2 1006.6 1005.0 1010.7 1005.9 1006.3 998.6 1003.8 1008.1 1008.3 1011.4 1005.6 998.6 DAY 18 26 17 9 25 28 2 7 28 22 28 19 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1024.5 1024.3 1021.6 1021.8 1015.3 1016.5 1012.6 1014.2 1016.5 1023.3 1024.0 1023.1 1019.8 MAX. QFE PRESSURE IN HPA 1034.7 1032.1 1035.7 1031.0 1022.8 1022.4 1026.2 1020.1 1021.2 1037.1 1038.1 1036.2 1038.1 DAY 23 3 29 4 29 5 4 15 9 12 21 21 MIN. QFE PRESSURE IN HPA 1008.8 1008.6 1009.6 1014.6 1008.3 1008.7 1000.6 1006.8 1011.0 1011.0 1013.8 1011.3 1000.6 DAY 18 26 17 9 6 28 2 6 28 22 28 6 MEAN QNH PRESSURE IN HPA 1021.7 1021.4 1018.8 1018.9 1012.4 1013.7 1009.8 1011.4 1013.7 1020.4 1021.1 1020.3 1017.0 MAX. QNH PRESSURE IN HPA 1031.8 1029.2 1032.8 1028.1 1020.0 1019.6 1023.4 1017.3 1018.4 1034.2 1035.2 1033.3 1035.2 DAY 23 3 29 4 29 5 4 15 9 12 21 21 MIN. QNH PRESSURE IN HPA 1006.0 1005.8 1006.8 1011.8 1005.5 1005.9 997.8 1004.0 1008.2 1008.2 1011.0 1008.5 997.8 DAY 18 26 17 9 6 28 2 6 28 22 28 6 MEAN QFF PRESSURE IN HPA 1021.9 1021.7 1019.1 1019.2 1012.8 1014.1 1010.2 1011.8 1014.1 1020.8 1021.4 1020.5 1017.3 MAX. QFF PRESSURE IN HPA 1032.0 1029.5 1033.0 1028.4 1020.3 1019.9 1023.7 1017.6 1018.8 1034.5 1035.4 1033.5 1035.4 DAY 23 3 29 4 29 5 4 15 9 12 21 21 MIN. QFF PRESSURE IN HPA 1006.2 1006.0 1007.1 1012.1 1005.9 1006.3 998.2 1004.4 1008.6 1008.5 1011.2 1008.7 998.2 DAY 18 26 17 9 6 28 2 7 28 22 28 6 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1024.3 1024.1 1021.3 1021.2 1014.8 1016.4 1012.6 1013.9 1016.3 1023.1 1023.6 1022.7 1019.5 MAX. QFE PRESSURE IN HPA 1033.5 1032.1 1033.7 1030.7 1022.1 1023.4 1025.8 1018.9 1021.2 1036.3 1037.5 1035.7 1037.5 DAY 23 6 29 4 11 19 4 15 9 12 21 21 MIN. QFE PRESSURE IN HPA 1008.0 1008.6 1010.7 1014.0 1007.6 1009.0 1000.9 1006.3 1010.0 1011.4 1014.6 1009.0 1000.9 DAY 18 26 6 19 6 28 2 6 28 22 28 6 MEAN QNH PRESSURE IN HPA 1021.4 1021.3 1018.4 1018.4 1011.9 1013.6 1009.7 1011.1 1013.5 1020.2 1020.7 1019.8 1016.7 MAX. QNH PRESSURE IN HPA 1030.6 1029.2 1030.8 1027.8 1019.3 1020.6 1023.0 1016.1 1018.4 1033.4 1034.6 1032.8 1034.6 DAY 23 6 29 4 11 19 4 15 9 12 21 21 MIN. QNH PRESSURE IN HPA 1005.2 1005.8 1007.9 1011.2 1004.8 1006.2 998.1 1003.5 1007.2 1008.6 1011.8 1006.2 998.1 DAY 18 26 6 19 6 28 2 6 28 22 28 6 MEAN QFF PRESSURE IN HPA 1021.7 1021.5 1018.7 1018.7 1012.3 1014.0 1010.1 1011.5 1013.9 1020.6 1021.0 1020.1 1017.0 MAX. QFF PRESSURE IN HPA 1030.9 1029.5 1031.0 1028.1 1019.7 1020.9 1023.3 1016.4 1018.8 1033.7 1034.8 1033.0 1034.8 DAY 23 6 29 4 28 19 4 15 9 12 21 21 MIN. QFF PRESSURE IN HPA 1005.4 1006.0 1008.1 1011.5 1005.2 1006.6 998.5 1004.0 1007.6 1008.9 1012.0 1006.5 998.5 DAY 18 26 6 19 6 28 2 6 28 22 28 6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.9 8.6 12.2 13.7 20.0 23.6 24.9 25.4 23.0 17.7 9.2 8.6 16.3 MINIMUN AIR TEMPERATURE (C) 5.9 4.3 9.4 11.2 16.0 19.9 21.6 22.0 19.2 14.8 5.1 5.3 12.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 3 11 21 25 12 0 0 0 72 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 3 0 0 0 0 0 0 0 0 2 1 6 TEMPERATURE RECORDS LOWEST(C) 2.0 -1.0 5.0 8.0 11.0 17.0 18.0 18.0 14.0 9.0 0.0 -1.0 -1.0 DAY 1 2 2 6 6 13 15 6 25 29 23 13 MAXIMUM AIR TEMPERATURE (C) 13.4 13.8 15.5 16.9 24.5 27.2 28.6 29.4 27.4 21.9 14.8 13.4 20.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 0 1 5 13 21 5 1 0 0 47 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 18.0 23.0 32.0 25.0 32.0 32.0 31.0 32.0 31.0 32.0 20.0 23.0 32.0 DAY 4 18 14 17 17 18 3 30 1 17 27 8 DIF. BETWEEN (MAX.-MIN.) (C) 7.5 9.5 6.1 5.7 8.5 7.3 7.0 7.4 8.2 7.1 9.7 8.1 7.7 MEAN DAILY TEMP. (MDT) (C) 9.6 9.0 12.5 14.0 20.2 23.5 25.1 25.7 23.3 18.4 10.0 9.3 16.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 31.0 79.0 127.5 146.0 74.5 3.5 0.0 0.0 461.5 HEATING DEG. DAYS(BASE 18 0C) 260.0 252.0 174.5 119.0 12.0 0.0 0.0 0.0 0.0 21.0 241.0 268.5 1348.0 DEWPOINT (MEAN C) 6.3 4.9 9.3 11.0 15.8 19.4 21.2 21.7 18.9 15.0 6.5 6.8 13.1 MIXING RATIO (G/KG) 5.98 5.41 7.34 8.16 11.30 14.27 15.94 16.43 13.79 10.63 6.02 6.17 10.12 VAPOUR PRESSURE (HPA) 9.72 8.82 11.86 13.17 18.17 22.70 25.25 26.07 22.02 17.17 9.87 10.03 16.24 SATURATION DEF. (HPA) 1.87 2.78 2.55 2.74 5.85 6.80 6.72 6.75 6.60 3.55 2.21 1.44 4.15 RELATIVE HUMIDITY (MEAN %) 85 79 84 84 78 79 81 81 79 85 84 89 82 RELATIVE HUMIDITY (MAX. %) 95 93 94 94 92 93 95 95 94 96 96 98 95 RELATIVE HUMIDITY (MIN. %) 70 60 71 72 62 64 65 66 61 69 66 74 67 RELATIVE HUMIDITY (MEAN% 03UTC) 90 90 92 93 89 89 93 94 93 92 95 96 92 RELATIVE HUMIDITY (MEAN% 09UTC) 75 63 76 74 66 71 68 69 65 73 68 76 70 RELATIVE HUMIDITY (MEAN% 15UTC) 86 75 81 81 75 71 73 74 70 84 84 89 79 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 30.9 45.0 38.6 50.9 0.7 38.9 117.4 38.5 35.5 172.2 209.0 30.4 808.0 DAYS WITH PRECIPITATION >=10 1 3 1 3 0 2 5 1 1 6 4 1 28 DAYS WITH PRECIPITATION >= 5 3 3 2 3 0 3 6 3 2 9 4 2 40 DAYS WITH PRECIPITATION >= 1 5 4 9 7 0 5 8 3 5 12 5 6 69 DAYS WITH PRECIPITATION 9 7 13 11 4 8 8 7 11 15 5 10 108 GREATEST DAILY PRECIPITATION 14.0 17.0 18.0 16.0 0.4 16.0 27.0 26.0 21.0 43.3 137.0 12.0 137.0 DAY 18 6 25 5 12 12 13 4 15 28 21 10 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 1 0 0 0 0 1 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 45 45 45 45 315 315 315 270 225 45 45 45 45 PREVAILING WIND SPEED(KNOTS) 4.1 4.1 4.6 4.8 4.2 4.6 4.0 6.5 4.2 3.8 4.0 3.4 4.3 PREVAILING WIND PERCENT 14.1 18.8 20.6 18.3 18.5 13.8 22.6 14.1 9.2 8.9 9.2 5.6 11.2 CALMS PERCENT OF WIND 51.6 45.5 37.5 38.3 44.0 37.9 41.5 52.0 54.2 60.9 75.0 75.8 51.2 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 346 28 16 348 326 321 287 286 305 312 40 35 328 VECTOR WIND MAGNITUDE(KNOTS) 0.3 0.7 1.1 1.1 1.4 1.4 1.7 1.3 0.6 0.4 0.5 0.1 0.7 WIND STEADINESES (MEAN %) 13.6 29.2 37.9 39.3 50.0 45.2 70.8 59.1 31.6 25.0 41.7 11.1 31.8 WIND SPEED (MEAN KNOTS) 2.2 2.4 2.9 2.8 2.8 3.1 2.4 2.2 1.9 1.6 1.2 0.9 2.2 FASTEST WIND DIRECTION 270 230 270 270 270 270 270 270 310 270 310 270 270 FASTEST WIND SPEED (KNOTS) 18 20 17 20 15 15 8 15 10 26 18 12 26 DAY 31 6 23 20 18 19 1 17 18 28 20 4 DAYS WITH SKY CLEAR (0-2)/8 9 15 5 3 19 13 14 14 13 12 17 11 145 DAYS WITH P.CLOUDY (3-6)/8 11 7 14 9 11 11 8 12 11 7 7 9 117 DAYS WITH CLOUDY (7-8)/8 11 6 12 18 1 6 9 5 6 12 6 11 103 DAYS WITH VISIBILITY =< 2 KM 4 1 0 0 1 0 0 1 2 1 2 8 20 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1021.0 1022.8 1017.3 1018.3 1019.0 1012.7 1011.1 1013.2 1016.3 1022.7 1029.3 1022.5 1018.8 MAX. QFE PRESSURE IN HPA 1031.4 1033.7 1031.8 1029.7 1030.4 1021.2 1021.9 1022.9 1031.8 1035.9 1041.2 1036.3 1041.2 DAY-HOUR 13- 6 13- 6 1- 0 23-18 13- 6 12-15 15- 6 4- 6 7-15 31-18 22- 6 5- 6 MIN. QFE PRESSURE IN HPA 1003.8 1009.3 998.4 993.1 1007.3 1001.8 1002.3 1005.1 1003.5 1011.6 1010.6 1005.4 993.1 DAY-HOUR 30- 9 22-12 14-12 20- 3 2-21 18-18 2-21 31-21 1-15 17-12 27-21 8-18 MEAN QNH PRESSURE IN HPA 1018.1 1020.0 1014.5 1015.5 1016.1 1009.9 1008.3 1010.4 1013.5 1019.8 1026.4 1019.7 1016.0 MAX. QNH PRESSURE IN HPA 1028.5 1030.8 1028.9 1026.8 1027.5 1018.4 1019.1 1020.1 1028.9 1033.0 1038.3 1033.4 1038.3 DAY-HOUR 13- 6 13- 6 1- 0 23-18 13- 6 12-15 15- 6 4- 6 7-15 31-18 22- 6 5- 6 MIN. QNH PRESSURE IN HPA 1001.0 1006.5 995.6 990.3 1004.5 999.0 999.5 1002.3 1000.7 1008.8 1007.8 1002.6 990.3 DAY-HOUR 30- 9 22-12 14-12 20- 3 2-21 18-18 2-21 31-21 1-15 17-12 27-21 8-18 MEAN QFF PRESSURE IN HPA 1018.4 1020.2 1014.8 1015.7 1016.5 1010.3 1008.7 1010.8 1013.9 1020.2 1026.7 1019.9 1016.3 MAX. QFF PRESSURE IN HPA 1028.8 1031.1 1029.2 1027.1 1027.9 1018.7 1019.4 1020.4 1029.3 1033.3 1038.5 1033.7 1038.5 DAY-HOUR 13- 6 13- 6 1- 0 23-18 13- 6 12-15 15- 6 4- 6 7-15 31-18 22- 6 5- 6 MIN. QFF PRESSURE IN HPA 1001.3 1006.8 995.9 990.6 1004.8 999.4 999.9 1002.7 1001.1 1009.1 1008.1 1002.9 990.6 DAY-HOUR 30- 9 22-12 14-15 20- 3 3- 0 18-18 2-21 31-21 1-15 17-15 27-21 8-18 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1021.2 1022.3 1017.2 1018.1 1018.3 1012.5 1010.9 1013.2 1015.7 1022.3 1029.2 1022.5 1018.6 MAX. QFE PRESSURE IN HPA 1030.8 1033.0 1031.8 1027.5 1028.5 1018.8 1021.1 1021.0 1023.4 1032.7 1040.0 1031.8 1040.0 DAY 14 13 1 24 13 22 15 4 20 31 22 5 MIN. QFE PRESSURE IN HPA 1007.2 1011.9 1005.9 994.1 1007.3 1002.7 1002.8 1006.7 1004.9 1011.8 1011.2 1010.6 994.1 DAY 31 22 14 20 3 19 3 12 2 27 28 9 MEAN QNH PRESSURE IN HPA 1018.3 1019.5 1014.4 1015.3 1015.5 1009.7 1008.1 1010.3 1012.9 1019.5 1026.4 1019.6 1015.8 MAX. QNH PRESSURE IN HPA 1027.9 1030.1 1028.9 1024.7 1025.6 1016.0 1018.3 1018.2 1020.6 1029.8 1037.1 1028.9 1037.1 DAY 14 13 1 24 13 22 15 4 20 31 22 5 MIN. QNH PRESSURE IN HPA 1004.4 1009.1 1003.1 991.3 1004.5 999.9 1000.0 1003.9 1002.1 1009.0 1008.4 1007.8 991.3 DAY 31 22 14 20 3 19 3 12 2 27 28 9 MEAN QFF PRESSURE IN HPA 1018.6 1019.7 1014.7 1015.6 1015.8 1010.1 1008.5 1010.7 1013.3 1019.8 1026.6 1019.9 1016.1 MAX. QFF PRESSURE IN HPA 1028.2 1030.4 1029.2 1024.9 1026.0 1016.3 1018.6 1018.5 1020.9 1030.1 1037.3 1029.2 1037.3 DAY 14 13 1 24 13 22 15 4 24 31 22 5 MIN. QFF PRESSURE IN HPA 1004.6 1009.4 1003.4 991.6 1004.8 1000.3 1000.4 1004.3 1002.5 1009.3 1008.7 1008.1 991.6 DAY 31 22 14 20 3 19 3 12 2 27 28 9 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1021.0 1022.9 1017.5 1018.3 1018.9 1013.2 1011.5 1013.7 1016.4 1022.6 1029.4 1023.0 1019.0 MAX. QFE PRESSURE IN HPA 1030.8 1033.2 1031.8 1028.1 1029.6 1019.8 1021.7 1022.4 1024.4 1033.6 1040.6 1034.4 1040.6 DAY 14 13 1 24 13 13 15 4 24 31 22 5 MIN. QFE PRESSURE IN HPA 1006.4 1011.9 1004.5 993.1 1010.1 1005.3 1003.8 1007.2 1005.6 1012.6 1012.6 1011.6 993.1 DAY 30 22 23 20 3 8 7 12 1 17 28 8 MEAN QNH PRESSURE IN HPA 1018.2 1020.1 1014.7 1015.5 1016.0 1010.4 1008.6 1010.9 1013.6 1019.7 1026.6 1020.2 1016.2 MAX. QNH PRESSURE IN HPA 1027.9 1030.3 1028.9 1025.2 1026.7 1017.0 1018.9 1019.6 1021.6 1030.7 1037.7 1031.5 1037.7 DAY 14 13 1 24 13 13 15 4 24 31 22 5 MIN. QNH PRESSURE IN HPA 1003.6 1009.1 1001.7 990.3 1007.3 1002.5 1001.0 1004.4 1002.8 1009.8 1009.8 1008.8 990.3 DAY 30 22 23 20 3 8 7 12 1 17 28 8 MEAN QFF PRESSURE IN HPA 1018.4 1020.3 1015.0 1015.8 1016.4 1010.7 1009.0 1011.3 1014.0 1020.0 1026.8 1020.4 1016.5 MAX. QFF PRESSURE IN HPA 1028.2 1030.6 1029.2 1025.5 1027.1 1017.3 1019.2 1019.9 1021.9 1031.0 1037.9 1031.8 1037.9 DAY 14 13 1 24 13 13 15 4 24 31 22 5 MIN. QFF PRESSURE IN HPA 1003.9 1009.4 1002.0 990.6 1007.6 1002.9 1001.4 1004.8 1003.2 1010.1 1010.0 1009.0 990.6 DAY 30 22 23 20 3 8 7 12 1 17 28 8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1021.9 1023.8 1018.2 1018.9 1019.6 1013.3 1011.7 1014.1 1017.0 1023.4 1030.2 1023.8 1019.7 MAX. QFE PRESSURE IN HPA 1031.4 1033.7 1030.9 1029.0 1030.4 1019.4 1021.9 1022.9 1025.5 1034.6 1041.2 1036.3 1041.2 DAY 13 13 27 24 13 14 15 4 24 31 22 5 MIN. QFE PRESSURE IN HPA 1004.9 1011.7 1004.4 999.0 1011.9 1003.8 1003.4 1008.1 1005.6 1012.8 1016.4 1011.3 999.0 DAY 30 22 14 20 26 8 7 12 1 17 28 8 MEAN QNH PRESSURE IN HPA 1019.0 1021.0 1015.4 1016.1 1016.8 1010.4 1008.8 1011.3 1014.2 1020.5 1027.4 1020.9 1016.8 MAX. QNH PRESSURE IN HPA 1028.5 1030.8 1028.0 1026.1 1027.5 1016.6 1019.1 1020.1 1022.7 1031.7 1038.3 1033.4 1038.3 DAY 13 13 27 24 13 14 15 4 24 31 22 5 MIN. QNH PRESSURE IN HPA 1002.1 1008.9 1001.6 996.2 1009.1 1001.0 1000.6 1005.3 1002.8 1010.0 1013.6 1008.5 996.2 DAY 30 22 14 20 26 8 7 12 1 17 28 8 MEAN QFF PRESSURE IN HPA 1019.3 1021.2 1015.7 1016.4 1017.1 1010.8 1009.2 1011.7 1014.5 1020.9 1027.6 1021.2 1017.1 MAX. QFF PRESSURE IN HPA 1028.8 1031.1 1028.3 1026.4 1027.9 1016.9 1019.4 1020.4 1023.0 1032.0 1038.5 1033.7 1038.5 DAY 13 13 27 24 13 14 15 4 24 31 22 5 MIN. QFF PRESSURE IN HPA 1002.4 1009.2 1001.9 996.5 1009.5 1001.4 1001.0 1005.7 1003.2 1010.3 1013.8 1008.8 996.5 DAY 30 22 14 20 26 8 7 12 1 17 28 8 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1020.6 1023.3 1017.8 1018.6 1019.6 1013.1 1011.4 1013.7 1016.7 1022.7 1029.4 1022.5 1019.1 MAX. QFE PRESSURE IN HPA 1030.2 1032.9 1031.2 1028.6 1030.0 1019.7 1021.8 1022.6 1031.0 1034.6 1039.7 1035.3 1039.7 DAY 14 13 27 23 13 12 15 4 3 31 22 5 MIN. QFE PRESSURE IN HPA 1003.8 1010.4 1001.7 1005.0 1011.2 1005.0 1003.6 1007.5 1004.9 1011.9 1015.1 1008.8 1001.7 DAY 30 22 14 20 2 30 9 16 1 17 27 8 MEAN QNH PRESSURE IN HPA 1017.8 1020.5 1015.0 1015.7 1016.8 1010.3 1008.6 1010.8 1013.9 1019.8 1026.5 1019.7 1016.3 MAX. QNH PRESSURE IN HPA 1027.3 1030.0 1028.3 1025.7 1027.1 1016.9 1019.0 1019.8 1028.1 1031.7 1036.8 1032.4 1036.8 DAY 14 13 27 23 13 12 15 4 3 31 22 5 MIN. QNH PRESSURE IN HPA 1001.0 1007.6 998.9 1002.2 1008.4 1002.2 1000.8 1004.7 1002.1 1009.1 1012.3 1006.0 998.9 DAY 30 22 14 20 2 30 9 16 1 17 27 8 MEAN QFF PRESSURE IN HPA 1018.1 1020.7 1015.2 1016.0 1017.2 1010.7 1009.0 1011.2 1014.3 1020.2 1026.8 1019.9 1016.6 MAX. QFF PRESSURE IN HPA 1027.6 1030.3 1028.6 1026.0 1027.5 1017.2 1019.3 1020.1 1028.5 1032.0 1037.0 1032.7 1037.0 DAY 14 13 27 23 13 12 15 4 3 31 22 5 MIN. QFF PRESSURE IN HPA 1001.3 1007.9 999.3 1002.5 1008.7 1002.6 1001.2 1005.1 1002.5 1009.5 1012.5 1006.3 999.3 DAY 30 22 14 20 2 30 9 16 1 17 27 8 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1020.1 1022.3 1016.9 1017.9 1019.1 1012.5 1010.7 1012.7 1015.5 1022.3 1028.8 1021.8 1018.4 MAX. QFE PRESSURE IN HPA 1029.1 1031.4 1030.4 1028.1 1028.1 1020.2 1021.7 1021.7 1024.2 1034.6 1038.4 1034.8 1038.4 DAY 13 13 27 23 12 12 15 4 24 31 22 5 MIN. QFE PRESSURE IN HPA 1004.4 1009.3 998.4 1005.0 1009.7 1003.1 1002.8 1006.6 1004.4 1011.6 1013.7 1006.8 998.4 DAY 30 22 14 11 2 8 9 16 1 17 27 8 MEAN QNH PRESSURE IN HPA 1017.3 1019.4 1014.1 1015.1 1016.2 1009.7 1007.9 1009.9 1012.7 1019.4 1026.0 1019.0 1015.6 MAX. QNH PRESSURE IN HPA 1026.2 1028.5 1027.5 1025.2 1025.2 1017.4 1018.9 1018.9 1021.4 1031.7 1035.5 1031.9 1035.5 DAY 13 13 27 23 12 12 15 4 24 31 22 5 MIN. QNH PRESSURE IN HPA 1001.6 1006.5 995.6 1002.2 1006.9 1000.3 1000.0 1003.8 1001.6 1008.8 1010.9 1004.0 995.6 DAY 30 22 14 11 2 8 9 16 1 17 27 8 MEAN QFF PRESSURE IN HPA 1017.5 1019.7 1014.4 1015.4 1016.6 1010.1 1008.3 1010.3 1013.0 1019.8 1026.2 1019.3 1015.9 MAX. QFF PRESSURE IN HPA 1026.5 1028.8 1027.8 1025.5 1025.6 1017.7 1019.2 1019.2 1021.7 1032.0 1035.7 1032.2 1035.7 DAY 14 13 27 23 12 12 15 4 24 31 22 5 MIN. QFF PRESSURE IN HPA 1001.9 1006.8 995.9 1002.5 1007.2 1000.7 1000.4 1004.2 1002.0 1009.2 1011.1 1004.3 995.9 DAY 30 22 14 11 2 8 9 16 1 17 27 8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1958 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1020.8 1022.5 1016.8 1018.0 1018.7 1012.2 1010.4 1012.4 1016.3 1022.7 1029.0 1022.3 1018.5 MAX. QFE PRESSURE IN HPA 1029.9 1031.5 1031.0 1028.4 1028.3 1021.2 1020.2 1021.3 1031.8 1035.5 1039.7 1034.0 1039.7 DAY 12 12 27 23 12 12 14 4 7 31 21 5 MIN. QFE PRESSURE IN HPA 1004.6 1010.0 998.4 1004.3 1008.7 1002.4 1003.2 1006.2 1003.5 1011.6 1013.5 1006.8 998.4 DAY 30 22 14 11 2 18 2 31 1 17 27 8 MEAN QNH PRESSURE IN HPA 1018.0 1019.7 1014.0 1015.2 1015.9 1009.4 1007.6 1009.6 1013.5 1019.9 1026.2 1019.4 1015.7 MAX. QNH PRESSURE IN HPA 1027.0 1028.6 1028.1 1025.5 1025.4 1018.4 1017.4 1018.5 1028.9 1032.6 1036.8 1031.1 1036.8 DAY 12 12 27 23 12 12 14 4 7 31 21 5 MIN. QNH PRESSURE IN HPA 1001.8 1007.2 995.6 1001.5 1005.9 999.6 1000.4 1003.4 1000.7 1008.8 1010.7 1004.0 995.6 DAY 30 22 14 11 2 18 2 31 1 17 27 8 MEAN QFF PRESSURE IN HPA 1018.2 1019.9 1014.3 1015.5 1016.2 1009.7 1008.0 1010.0 1013.9 1020.2 1026.4 1019.7 1016.0 MAX. QFF PRESSURE IN HPA 1027.3 1028.9 1028.4 1025.8 1025.8 1018.7 1017.7 1018.8 1029.3 1032.9 1037.0 1031.4 1037.0 DAY 12 12 27 23 12 12 14 4 7 31 21 5 MIN. QFF PRESSURE IN HPA 1002.1 1007.5 995.9 1001.8 1006.2 1000.0 1000.8 1003.8 1001.1 1009.1 1010.9 1004.3 995.9 DAY 30 22 14 11 2 18 2 31 1 17 27 8 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1021.2 1022.7 1017.3 1018.6 1019.2 1012.6 1011.1 1013.1 1016.6 1023.0 1029.3 1022.3 1018.9 MAX. QFE PRESSURE IN HPA 1030.7 1032.8 1031.3 1029.7 1029.3 1021.2 1021.1 1021.7 1024.4 1035.9 1040.8 1033.1 1040.8 DAY 19 12 27 23 12 12 14 4 19 31 21 5 MIN. QFE PRESSURE IN HPA 1005.2 1011.0 999.4 1002.8 1008.7 1001.8 1002.5 1005.9 1004.0 1012.0 1013.3 1005.4 999.4 DAY 30 22 14 19 2 18 2 31 1 17 27 8 MEAN QNH PRESSURE IN HPA 1018.4 1019.9 1014.4 1015.8 1016.4 1009.7 1008.3 1010.2 1013.8 1020.1 1026.4 1019.5 1016.1 MAX. QNH PRESSURE IN HPA 1027.8 1029.9 1028.4 1026.8 1026.4 1018.4 1018.3 1018.9 1021.6 1033.0 1037.9 1030.2 1037.9 DAY 19 12 27 23 12 12 14 4 19 31 21 5 MIN. QNH PRESSURE IN HPA 1002.4 1008.2 996.6 1000.0 1005.9 999.0 999.7 1003.1 1001.2 1009.2 1010.5 1002.6 996.6 DAY 30 22 14 19 2 18 2 31 1 17 27 8 MEAN QFF PRESSURE IN HPA 1018.6 1020.1 1014.7 1016.1 1016.7 1010.1 1008.7 1010.7 1014.2 1020.5 1026.7 1019.7 1016.4 MAX. QFF PRESSURE IN HPA 1028.1 1030.2 1028.7 1027.1 1026.8 1018.7 1018.6 1019.2 1021.9 1033.3 1038.1 1030.5 1038.1 DAY 19 12 27 23 12 12 14 4 19 31 21 5 MIN. QFF PRESSURE IN HPA 1002.6 1008.5 997.0 1000.3 1006.2 999.4 1000.1 1003.5 1001.6 1009.5 1010.7 1002.9 997.0 DAY 30 22 14 19 2 18 2 31 1 17 27 8 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1021.0 1022.6 1017.0 1017.9 1018.6 1012.4 1011.1 1012.9 1016.4 1022.6 1028.9 1022.1 1018.6 MAX. QFE PRESSURE IN HPA 1030.8 1033.0 1030.6 1028.9 1029.3 1020.7 1021.1 1020.7 1023.7 1035.6 1040.5 1031.0 1040.5 DAY 12 12 27 23 12 12 14 24 21 31 21 5 MIN. QFE PRESSURE IN HPA 1006.4 1011.0 1003.4 996.3 1007.3 1002.0 1002.3 1005.1 1004.2 1011.8 1010.6 1009.4 996.3 DAY 30 22 14 19 2 18 2 31 1 26 27 8 MEAN QNH PRESSURE IN HPA 1018.1 1019.8 1014.2 1015.1 1015.7 1009.6 1008.2 1010.1 1013.6 1019.8 1026.1 1019.3 1015.8 MAX. QNH PRESSURE IN HPA 1027.9 1030.1 1027.7 1026.0 1026.4 1017.9 1018.3 1017.9 1020.9 1032.7 1037.6 1028.1 1037.6 DAY 12 12 27 23 12 12 14 24 21 31 21 5 MIN. QNH PRESSURE IN HPA 1003.6 1008.2 1000.6 993.5 1004.5 999.2 999.5 1002.3 1001.4 1009.0 1007.8 1006.6 993.5 DAY 30 22 14 19 2 18 2 31 1 26 27 8 MEAN QFF PRESSURE IN HPA 1018.4 1020.1 1014.5 1015.4 1016.1 1009.9 1008.6 1010.5 1014.0 1020.1 1026.3 1019.6 1016.1 MAX. QFF PRESSURE IN HPA 1028.2 1030.4 1028.0 1026.3 1026.8 1018.2 1018.6 1018.3 1021.2 1033.0 1037.8 1028.4 1037.8 DAY 12 12 27 23 12 12 14 24 21 31 21 5 MIN. QFF PRESSURE IN HPA 1003.8 1008.5 1001.0 993.8 1004.8 999.6 999.9 1002.7 1001.8 1009.3 1008.1 1006.9 993.8 DAY 30 22 14 19 2 18 2 31 1 26 27 8 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.2 5.4 8.1 14.1 19.3 23.1 25.9 25.7 22.1 17.2 10.8 7.0 15.5 MINIMUN AIR TEMPERATURE (C) 3.9 2.4 5.9 11.5 16.0 19.7 21.7 22.3 19.4 14.4 8.2 4.6 12.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 11 22 26 8 0 0 0 68 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 3 9 1 0 0 0 0 0 0 0 1 2 16 TEMPERATURE RECORDS LOWEST(C) -1.0 -2.0 0.0 6.0 9.0 15.0 19.0 19.0 15.0 10.0 0.0 -2.0 -2.0 DAY 3 11 9 2 4 11 4 26 29 9 27 15 MAXIMUM AIR TEMPERATURE (C) 11.6 9.5 11.1 17.8 23.1 26.8 30.1 29.5 25.5 20.9 14.3 10.7 19.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 1 22 16 3 0 0 0 42 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 17.0 16.0 18.0 27.0 29.0 31.0 33.0 33.0 31.0 29.0 20.0 18.0 33.0 DAY 18 23 11 14 22 15 31 6 2 25 6 6 DIF. BETWEEN (MAX.-MIN.) (C) 7.7 7.1 5.2 6.3 7.1 7.1 8.4 7.2 6.1 6.5 6.1 6.1 6.7 MEAN DAILY TEMP. (MDT) (C) 7.8 6.0 8.5 14.6 19.5 23.2 25.9 25.9 22.4 17.6 11.2 7.6 15.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 12.0 70.0 151.0 151.0 49.0 2.0 0.0 0.0 435.0 HEATING DEG. DAYS(BASE 18 0C) 317.0 337.0 294.0 104.0 17.5 0.0 0.0 0.0 0.0 28.5 203.0 321.5 1622.5 DEWPOINT (MEAN C) 5.6 2.7 5.7 11.5 15.6 18.4 21.0 21.8 18.9 14.8 8.8 5.2 12.5 MIXING RATIO (G/KG) 5.66 4.63 5.66 8.48 11.20 13.32 15.79 16.54 13.90 10.53 7.08 5.48 9.86 VAPOUR PRESSURE (HPA) 9.22 7.55 9.23 13.69 17.96 21.27 25.02 26.18 22.16 17.00 11.54 8.98 15.82 SATURATION DEF. (HPA) 1.16 1.64 1.71 2.80 4.94 7.39 8.84 7.24 4.80 2.84 1.81 1.25 3.87 RELATIVE HUMIDITY (MEAN %) 90 84 85 85 81 76 76 80 84 87 88 89 84 RELATIVE HUMIDITY (MAX. %) 98 96 95 96 94 91 91 93 96 97 96 97 95 RELATIVE HUMIDITY (MIN. %) 77 67 73 71 62 60 58 65 64 71 74 74 68 RELATIVE HUMIDITY (MEAN% 03UTC) 96 91 93 93 93 88 90 92 94 96 95 95 93 RELATIVE HUMIDITY (MEAN% 09UTC) 79 72 75 75 68 65 62 68 71 75 77 80 72 RELATIVE HUMIDITY (MEAN% 15UTC) 90 81 83 82 73 69 67 74 80 84 87 88 80 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 152.0 150.5 49.6 20.7 42.4 10.7 8.3 62.9 91.0 200.9 137.5 140.0 1066.5 DAYS WITH PRECIPITATION >=10 7 7 2 1 1 0 0 2 5 5 6 5 41 DAYS WITH PRECIPITATION >= 5 7 13 4 1 1 1 1 3 7 9 7 6 60 DAYS WITH PRECIPITATION >= 1 7 13 9 6 5 4 1 3 10 13 13 8 92 DAYS WITH PRECIPITATION 8 14 12 9 10 5 6 7 12 17 15 9 124 GREATEST DAILY PRECIPITATION 31.0 26.0 11.0 12.0 32.0 6.0 8.0 43.0 20.0 81.0 44.0 37.0 81.0 DAY 24 8 7 7 2 29 13 11 24 30 20 2 DAY WITH THUNDER STORM 1 0 0 0 0 1 0 0 0 0 0 0 2 DAYS WITH SNOW OR SLEET 1 4 0 0 0 0 0 0 0 0 0 2 7 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 45 90 45 270 270 270 315 270 315 45 90 45 270 PREVAILING WIND SPEED(KNOTS) 2.6 3.9 3.8 3.9 6.1 4.8 2.9 3.7 2.8 2.8 4.1 2.4 4.8 PREVAILING WIND PERCENT 6.9 11.6 10.9 7.5 11.3 17.9 16.5 19.0 10.4 8.9 4.2 5.2 8.9 CALMS PERCENT OF WIND 75.0 62.1 61.3 76.3 59.3 54.6 54.8 58.5 59.6 70.6 81.3 87.5 66.7 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 298 39 338 325 310 293 303 281 308 336 239 55 312 VECTOR WIND MAGNITUDE(KNOTS) 0.2 0.4 0.6 0.4 0.9 1.1 1.0 1.0 0.6 0.6 0.1 0.2 0.5 WIND STEADINESES (MEAN %) 22.2 22.2 40.0 50.0 56.3 64.7 71.4 76.9 46.2 50.0 12.5 50.0 41.7 WIND SPEED (MEAN KNOTS) 0.9 1.8 1.5 0.8 1.6 1.7 1.4 1.3 1.3 1.2 0.8 0.4 1.2 FASTEST WIND DIRECTION 270 270 270 270 270 270 290 270 360 270 210 310 270 FASTEST WIND SPEED (KNOTS) 10 18 12 10 20 12 10 8 12 12 15 6 20 DAY 1 20 7 24 2 17 12 19 24 3 19 13 DAYS WITH SKY CLEAR (0-2)/8 12 9 3 9 11 12 16 12 7 9 9 8 117 DAYS WITH P.CLOUDY (3-6)/8 7 10 10 5 14 13 9 8 8 6 4 5 99 DAYS WITH CLOUDY (7-8)/8 12 9 18 16 6 5 6 11 15 16 17 18 149 DAYS WITH VISIBILITY =< 2 KM 6 1 1 8 0 0 0 1 2 8 5 8 40 DURATION OF SUNSHINE HOURS 127.0 129.7 129.6 144.8 205.3 232.5 256.7 188.2 116.2 121.6 92.2 81.9 1825.7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1022.1 1022.2 1024.1 1018.9 1015.6 1014.9 1010.6 1010.8 1014.4 1021.8 1026.7 1027.6 1019.1 MAX. QFE PRESSURE IN HPA 1035.0 1033.8 1033.4 1030.8 1025.7 1026.3 1016.1 1018.9 1025.2 1036.7 1035.5 1042.9 1042.9 DAY-HOUR 2- 6 28- 3 14- 6 3- 6 3- 6 21- 0 14- 6 24- 6 28- 3 26- 9 29- 6 14- 6 MIN. QFE PRESSURE IN HPA 1010.4 1007.1 1012.0 1005.0 1002.4 1004.4 1005.8 1004.3 1001.1 1006.7 1015.8 1014.2 1001.1 DAY-HOUR 31-15 20- 3 17-18 5- 0 19- 9 16-21 25-15 9- 3 3- 0 12- 9 9-15 5-12 MEAN QNH PRESSURE IN HPA 1019.3 1019.3 1021.3 1016.1 1012.8 1012.0 1007.7 1008.0 1011.6 1018.9 1023.9 1024.8 1016.3 MAX. QNH PRESSURE IN HPA 1032.1 1030.9 1030.5 1027.9 1022.9 1023.5 1013.3 1016.1 1022.4 1033.8 1032.6 1040.0 1040.0 DAY-HOUR 2- 6 28- 3 14- 6 3- 6 3- 6 21- 0 14- 6 24- 6 28- 3 26- 9 29- 6 14- 6 MIN. QNH PRESSURE IN HPA 1007.6 1004.3 1009.2 1002.2 999.6 1001.6 1003.0 1001.5 998.3 1003.9 1013.0 1011.4 998.3 DAY-HOUR 31-15 20- 3 17-18 5- 0 19- 9 16-21 25-15 9- 3 3- 0 12- 9 9-15 5-12 MEAN QFF PRESSURE IN HPA 1019.5 1019.5 1021.5 1016.4 1013.2 1012.4 1008.2 1008.4 1012.0 1019.3 1024.1 1025.0 1016.6 MAX. QFF PRESSURE IN HPA 1032.3 1031.1 1030.8 1028.2 1023.1 1023.8 1013.7 1016.5 1022.7 1034.2 1032.9 1040.2 1040.2 DAY-HOUR 2- 6 28- 3 14- 6 3- 6 3- 6 21- 0 14- 6 24- 6 28- 3 26- 9 29- 6 14- 6 MIN. QFF PRESSURE IN HPA 1007.8 1004.5 1009.4 1002.5 1000.0 1002.0 1003.4 1001.9 998.7 1004.2 1013.3 1011.6 998.7 DAY-HOUR 31-15 20- 3 17-18 5- 0 19-12 16-21 25-15 9- 3 3- 0 12- 9 9-15 5-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1021.9 1021.6 1023.7 1018.2 1015.6 1014.7 1010.4 1010.8 1014.5 1021.6 1026.4 1027.5 1018.9 MAX. QFE PRESSURE IN HPA 1031.1 1033.0 1030.4 1028.4 1024.4 1026.3 1015.0 1017.3 1024.8 1033.4 1034.7 1041.8 1041.8 DAY 21 14 25 28 3 21 15 24 28 20 22 14 MIN. QFE PRESSURE IN HPA 1011.7 1007.3 1015.8 1005.0 1005.5 1005.4 1006.7 1004.5 1001.1 1007.3 1016.2 1015.7 1001.1 DAY 19 20 18 5 20 17 11 9 3 12 6 6 MEAN QNH PRESSURE IN HPA 1019.0 1018.8 1020.8 1015.3 1012.8 1011.9 1007.5 1008.0 1011.7 1018.8 1023.5 1024.7 1016.1 MAX. QNH PRESSURE IN HPA 1028.2 1030.1 1027.5 1025.5 1021.6 1023.5 1012.2 1014.5 1022.0 1030.5 1031.8 1038.9 1038.9 DAY 21 14 25 28 3 21 15 24 28 20 22 14 MIN. QNH PRESSURE IN HPA 1008.9 1004.5 1013.0 1002.2 1002.7 1002.6 1003.9 1001.7 998.3 1004.5 1013.4 1012.9 998.3 DAY 19 20 18 5 20 17 11 9 3 12 6 6 MEAN QFF PRESSURE IN HPA 1019.3 1019.0 1021.1 1015.6 1013.1 1012.3 1008.0 1008.4 1012.1 1019.1 1023.8 1024.9 1016.4 MAX. QFF PRESSURE IN HPA 1028.5 1030.3 1027.8 1025.8 1021.8 1023.8 1012.6 1014.9 1022.3 1030.8 1032.1 1039.1 1039.1 DAY 21 14 25 28 3 21 15 24 28 20 22 14 MIN. QFF PRESSURE IN HPA 1009.1 1004.7 1013.2 1002.5 1003.1 1003.0 1004.3 1002.1 998.7 1004.8 1013.7 1013.1 998.7 DAY 19 20 18 5 20 17 11 9 3 12 6 6 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1022.3 1022.4 1024.5 1019.2 1016.0 1015.2 1010.9 1011.1 1015.1 1021.9 1026.6 1027.8 1019.4 MAX. QFE PRESSURE IN HPA 1032.1 1033.8 1031.3 1030.7 1024.9 1022.6 1015.7 1017.8 1025.2 1033.8 1034.8 1042.5 1042.5 DAY 2 28 20 3 3 21 15 24 28 20 29 14 MIN. QFE PRESSURE IN HPA 1012.2 1007.1 1016.0 1009.5 1004.9 1008.9 1007.5 1004.3 1006.7 1007.3 1016.8 1015.7 1004.3 DAY 19 20 1 5 19 16 21 9 2 12 6 6 MEAN QNH PRESSURE IN HPA 1019.5 1019.5 1021.6 1016.3 1013.2 1012.4 1008.1 1008.3 1012.2 1019.0 1023.7 1025.0 1016.6 MAX. QNH PRESSURE IN HPA 1029.2 1030.9 1028.4 1027.8 1022.1 1019.8 1012.9 1015.0 1022.4 1030.9 1031.9 1039.6 1039.6 DAY 2 28 20 3 3 21 15 24 28 20 29 14 MIN. QNH PRESSURE IN HPA 1009.4 1004.3 1013.2 1006.7 1002.1 1006.1 1004.7 1001.5 1003.9 1004.5 1014.0 1012.9 1001.5 DAY 19 20 1 5 19 16 21 9 2 12 6 6 MEAN QFF PRESSURE IN HPA 1019.7 1019.7 1021.9 1016.6 1013.5 1012.7 1008.5 1008.7 1012.6 1019.3 1024.0 1025.2 1016.9 MAX. QFF PRESSURE IN HPA 1029.4 1031.1 1028.7 1028.1 1022.3 1020.1 1013.3 1015.4 1022.7 1031.2 1032.2 1039.8 1039.8 DAY 2 28 20 3 3 21 15 24 28 20 29 14 MIN. QFF PRESSURE IN HPA 1009.6 1004.5 1013.4 1007.0 1002.5 1006.5 1005.1 1001.9 1004.3 1004.8 1014.2 1013.1 1001.9 DAY 19 20 1 5 19 16 21 9 2 12 6 6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1023.2 1023.0 1025.0 1020.0 1016.4 1015.4 1011.2 1011.4 1015.4 1022.6 1027.6 1028.5 1020.0 MAX. QFE PRESSURE IN HPA 1035.0 1032.8 1033.4 1030.8 1025.7 1023.4 1016.1 1018.9 1025.1 1036.4 1035.5 1042.9 1042.9 DAY 2 14 14 3 3 21 14 24 28 26 29 14 MIN. QFE PRESSURE IN HPA 1012.4 1010.5 1016.3 1010.3 1003.2 1009.6 1007.7 1004.6 1006.2 1007.8 1017.9 1016.3 1003.2 DAY 31 20 1 5 19 16 21 9 2 12 6 6 MEAN QNH PRESSURE IN HPA 1020.3 1020.2 1022.2 1017.1 1013.6 1012.6 1008.4 1008.5 1012.5 1019.8 1024.8 1025.7 1017.1 MAX. QNH PRESSURE IN HPA 1032.1 1029.9 1030.5 1027.9 1022.9 1020.6 1013.3 1016.1 1022.3 1033.5 1032.6 1040.0 1040.0 DAY 2 14 14 3 3 21 14 24 28 26 29 14 MIN. QNH PRESSURE IN HPA 1009.6 1007.7 1013.5 1007.5 1000.4 1006.8 1004.9 1001.8 1003.4 1005.0 1015.1 1013.5 1000.4 DAY 31 20 1 5 19 16 21 9 2 12 6 6 MEAN QFF PRESSURE IN HPA 1020.5 1020.4 1022.4 1017.4 1013.9 1013.0 1008.8 1009.0 1012.9 1020.1 1025.0 1025.9 1017.4 MAX. QFF PRESSURE IN HPA 1032.3 1030.1 1030.8 1028.2 1023.1 1020.9 1013.7 1016.5 1022.6 1033.9 1032.9 1040.2 1040.2 DAY 2 14 14 3 3 21 14 24 28 26 29 14 MIN. QFF PRESSURE IN HPA 1009.8 1007.9 1013.7 1007.8 1000.8 1007.2 1005.3 1002.2 1003.8 1005.3 1015.4 1013.7 1000.8 DAY 31 20 1 5 19 16 21 9 2 12 6 6 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1022.3 1022.3 1024.1 1019.5 1015.9 1015.2 1010.9 1010.7 1014.5 1021.6 1026.8 1027.6 1019.3 MAX. QFE PRESSURE IN HPA 1034.4 1031.0 1033.2 1030.3 1025.5 1022.3 1015.8 1016.8 1023.3 1036.7 1034.6 1041.8 1041.8 DAY 2 14 14 3 3 21 14 25 28 26 29 14 MIN. QFE PRESSURE IN HPA 1012.4 1011.1 1015.4 1009.5 1002.4 1008.5 1007.6 1005.5 1005.2 1006.7 1017.7 1014.8 1002.4 DAY 31 20 31 24 19 1 25 9 2 12 6 5 MEAN QNH PRESSURE IN HPA 1019.4 1019.5 1021.3 1016.7 1013.0 1012.4 1008.1 1007.9 1011.7 1018.8 1023.9 1024.7 1016.4 MAX. QNH PRESSURE IN HPA 1031.5 1028.1 1030.3 1027.4 1022.7 1019.5 1013.0 1014.0 1020.5 1033.8 1031.7 1038.9 1038.9 DAY 2 14 14 3 3 21 14 25 28 26 29 14 MIN. QNH PRESSURE IN HPA 1009.6 1008.3 1012.6 1006.7 999.6 1005.7 1004.8 1002.7 1002.4 1003.9 1014.9 1012.0 999.6 DAY 31 20 31 24 19 1 25 9 2 12 6 5 MEAN QFF PRESSURE IN HPA 1019.7 1019.7 1021.5 1017.0 1013.4 1012.8 1008.5 1008.3 1012.0 1019.1 1024.2 1024.9 1016.8 MAX. QFF PRESSURE IN HPA 1031.7 1028.3 1030.6 1027.7 1023.0 1019.9 1013.4 1014.4 1020.8 1034.2 1032.0 1039.1 1039.1 DAY 2 14 14 3 3 21 14 25 28 26 29 14 MIN. QFF PRESSURE IN HPA 1009.8 1008.5 1012.9 1007.0 1000.0 1006.1 1005.2 1003.1 1002.8 1004.2 1015.2 1012.2 1000.0 DAY 31 20 31 24 19 1 25 9 2 12 6 5 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1021.8 1021.6 1023.5 1018.8 1015.4 1014.6 1010.4 1010.3 1013.6 1021.1 1026.6 1027.1 1018.7 MAX. QFE PRESSURE IN HPA 1034.5 1031.1 1032.8 1029.3 1025.2 1021.7 1014.9 1016.8 1021.8 1035.1 1034.1 1039.8 1039.8 DAY 2 10 14 3 3 20 14 24 27 26 29 14 MIN. QFE PRESSURE IN HPA 1010.8 1009.2 1013.0 1008.5 1002.4 1006.1 1006.4 1005.3 1004.0 1006.9 1017.3 1014.2 1002.4 DAY 31 19 17 4 19 1 25 5 2 12 5 5 MEAN QNH PRESSURE IN HPA 1018.9 1018.7 1020.6 1015.9 1012.5 1011.8 1007.5 1007.5 1010.7 1018.2 1023.7 1024.3 1015.9 MAX. QNH PRESSURE IN HPA 1031.6 1028.2 1029.9 1026.4 1022.4 1018.9 1012.1 1014.0 1019.0 1032.2 1031.2 1036.9 1036.9 DAY 2 10 14 3 3 20 14 24 27 26 29 14 MIN. QNH PRESSURE IN HPA 1008.0 1006.4 1010.2 1005.7 999.6 1003.3 1003.6 1002.5 1001.2 1004.1 1014.5 1011.4 999.6 DAY 31 19 17 4 19 1 25 5 2 12 5 5 MEAN QFF PRESSURE IN HPA 1019.2 1019.0 1020.9 1016.2 1012.9 1012.1 1008.0 1007.9 1011.1 1018.6 1024.0 1024.5 1016.2 MAX. QFF PRESSURE IN HPA 1031.8 1028.4 1030.2 1026.7 1022.7 1019.3 1012.5 1014.4 1019.3 1032.6 1031.5 1037.1 1037.1 DAY 2 10 14 3 3 20 14 24 27 26 29 14 MIN. QFF PRESSURE IN HPA 1008.3 1006.6 1010.4 1006.0 1000.0 1003.7 1004.0 1002.9 1001.6 1004.4 1014.8 1011.6 1000.0 DAY 31 19 17 4 19 1 25 5 2 12 5 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1959 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1022.1 1022.1 1023.9 1018.5 1015.1 1014.4 1010.0 1010.3 1013.2 1021.4 1026.2 1027.7 1018.7 MAX. QFE PRESSURE IN HPA 1034.0 1033.1 1032.5 1028.4 1025.2 1021.5 1014.7 1016.9 1022.0 1034.7 1034.3 1039.9 1039.9 DAY 2 10 24 27 3 7 14 25 27 26 29 13 MIN. QFE PRESSURE IN HPA 1010.4 1009.6 1013.4 1006.4 1004.7 1005.8 1005.8 1004.9 1003.7 1010.2 1015.8 1015.4 1003.7 DAY 31 19 17 24 19 16 25 5 2 12 9 5 MEAN QNH PRESSURE IN HPA 1019.3 1019.2 1021.1 1015.6 1012.3 1011.6 1007.2 1007.5 1010.4 1018.6 1023.4 1024.8 1015.9 MAX. QNH PRESSURE IN HPA 1031.1 1030.2 1029.6 1025.5 1022.4 1018.7 1011.9 1014.1 1019.2 1031.8 1031.4 1037.0 1037.0 DAY 2 10 24 27 3 7 14 25 27 26 29 13 MIN. QNH PRESSURE IN HPA 1007.6 1006.8 1010.6 1003.6 1001.9 1003.0 1003.0 1002.1 1000.9 1007.4 1013.0 1012.6 1000.9 DAY 31 19 17 24 19 16 25 5 2 12 9 5 MEAN QFF PRESSURE IN HPA 1019.5 1019.5 1021.3 1015.9 1012.6 1011.9 1007.6 1007.9 1010.8 1018.9 1023.6 1025.0 1016.2 MAX. QFF PRESSURE IN HPA 1031.3 1030.4 1029.9 1025.8 1022.6 1019.1 1012.3 1014.5 1019.5 1032.1 1031.7 1037.2 1037.2 DAY 2 10 24 27 3 20 14 25 27 26 29 13 MIN. QFF PRESSURE IN HPA 1007.8 1007.0 1010.8 1003.9 1002.3 1003.4 1003.4 1002.5 1001.3 1007.7 1013.3 1012.8 1001.3 DAY 31 19 17 24 19 16 25 5 2 12 9 5 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1022.2 1022.5 1024.3 1018.7 1015.6 1015.0 1010.6 1010.8 1014.4 1022.2 1027.1 1027.6 1019.3 MAX. QFE PRESSURE IN HPA 1032.8 1033.7 1032.9 1028.7 1025.0 1022.3 1015.6 1017.3 1023.4 1033.7 1034.3 1040.7 1040.7 DAY 2 13 24 27 2 20 14 25 27 26 21 13 MIN. QFE PRESSURE IN HPA 1012.0 1008.3 1012.0 1005.7 1005.3 1004.9 1006.7 1005.6 1004.7 1008.6 1016.9 1016.7 1004.7 DAY 18 19 17 24 18 16 10 5 2 13 5 5 MEAN QNH PRESSURE IN HPA 1019.4 1019.6 1021.5 1015.9 1012.8 1012.2 1007.8 1008.0 1011.6 1019.4 1024.3 1024.7 1016.4 MAX. QNH PRESSURE IN HPA 1029.9 1030.8 1030.0 1025.8 1022.2 1019.5 1012.8 1014.5 1020.6 1030.8 1031.4 1037.8 1037.8 DAY 2 13 24 27 2 20 14 25 27 26 21 13 MIN. QNH PRESSURE IN HPA 1009.2 1005.5 1009.2 1002.9 1002.5 1002.1 1003.9 1002.8 1001.9 1005.8 1014.1 1013.9 1001.9 DAY 18 19 17 24 18 16 10 5 2 13 5 5 MEAN QFF PRESSURE IN HPA 1019.6 1019.8 1021.7 1016.2 1013.1 1012.6 1008.2 1008.4 1012.0 1019.7 1024.5 1025.0 1016.7 MAX. QFF PRESSURE IN HPA 1030.1 1031.0 1030.3 1026.1 1022.4 1019.8 1013.2 1014.9 1020.9 1031.1 1031.7 1038.0 1038.0 DAY 2 13 24 27 2 20 14 25 27 26 21 13 MIN. QFF PRESSURE IN HPA 1009.4 1005.7 1009.4 1003.2 1002.9 1002.5 1004.3 1003.2 1002.3 1006.1 1014.3 1014.1 1002.3 DAY 18 19 17 24 18 16 10 5 2 13 5 5 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1021.5 1022.0 1024.3 1018.6 1015.4 1014.6 1010.3 1010.9 1014.9 1022.0 1026.6 1027.2 1019.0 MAX. QFE PRESSURE IN HPA 1030.2 1033.1 1032.0 1028.7 1024.4 1022.3 1015.2 1017.4 1024.4 1033.0 1034.5 1041.2 1041.2 DAY 20 13 24 27 2 20 14 23 27 19 21 13 MIN. QFE PRESSURE IN HPA 1011.7 1007.7 1014.6 1006.4 1006.0 1004.4 1006.7 1004.5 1006.9 1008.8 1016.2 1015.7 1004.4 DAY 18 19 17 4 19 16 10 8 1 13 5 5 MEAN QNH PRESSURE IN HPA 1018.7 1019.1 1021.4 1015.7 1012.6 1011.7 1007.5 1008.1 1012.1 1019.2 1023.8 1024.4 1016.2 MAX. QNH PRESSURE IN HPA 1027.3 1030.2 1029.1 1025.8 1021.6 1019.5 1012.4 1014.6 1021.6 1030.1 1031.6 1038.3 1038.3 DAY 20 13 24 27 2 20 14 23 27 19 21 13 MIN. QNH PRESSURE IN HPA 1008.9 1004.9 1011.8 1003.6 1003.2 1001.6 1003.9 1001.7 1004.1 1006.0 1013.4 1012.9 1001.6 DAY 18 19 17 4 19 16 10 8 1 13 5 5 MEAN QFF PRESSURE IN HPA 1018.9 1019.4 1021.7 1016.0 1012.9 1012.1 1007.9 1008.5 1012.5 1019.5 1024.1 1024.6 1016.5 MAX. QFF PRESSURE IN HPA 1027.6 1030.4 1029.4 1026.1 1021.8 1019.9 1012.8 1015.0 1021.9 1030.4 1031.9 1038.5 1038.5 DAY 20 13 24 27 2 20 14 23 27 19 21 13 MIN. QFF PRESSURE IN HPA 1009.1 1005.1 1012.0 1003.9 1003.6 1002.0 1004.3 1002.1 1004.5 1006.3 1013.7 1013.1 1002.0 DAY 18 19 17 4 19 16 10 8 1 13 5 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.1 8.4 7.4 13.6 19.2 24.3 25.4 25.8 23.5 19.3 13.6 9.6 16.5 MINIMUN AIR TEMPERATURE (C) 4.8 5.7 4.5 10.7 15.6 20.7 21.6 22.7 20.0 15.1 10.2 5.9 13.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 18 24 30 14 0 0 0 86 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 2 1 3 0 0 0 0 0 0 0 0 0 6 TEMPERATURE RECORDS LOWEST(C) 0.0 0.0 0.0 6.0 11.0 17.0 18.0 20.0 16.0 11.0 4.0 2.0 0.0 DAY 29 12 14 16 19 7 10 1 22 27 27 29 MAXIMUM AIR TEMPERATURE (C) 12.3 11.8 10.5 17.4 22.8 28.2 29.5 29.8 27.6 23.8 18.3 14.3 20.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 0 9 17 18 8 1 0 0 55 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.0 22.0 24.0 31.0 29.0 32.0 34.0 32.0 30.0 30.0 24.0 20.0 34.0 DAY 9 21 31 26 29 15 30 1 3 21 3 1 DIF. BETWEEN (MAX.-MIN.) (C) 7.5 6.1 6.0 6.7 7.2 7.5 7.9 7.1 7.6 8.7 8.1 8.4 7.4 MEAN DAILY TEMP. (MDT) (C) 8.5 8.7 7.5 14.0 19.2 24.4 25.6 26.3 23.8 19.5 14.2 10.1 16.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 7.5 9.0 103.5 142.5 163.0 85.0 8.0 0.0 0.0 518.5 HEATING DEG. DAYS(BASE 18 0C) 293.5 268.5 325.5 140.0 10.5 0.0 0.0 0.0 0.0 4.0 113.5 246.0 1401.5 DEWPOINT (MEAN C) 6.0 6.2 4.3 9.8 15.0 19.4 20.9 22.1 19.9 16.6 11.5 7.5 13.3 MIXING RATIO (G/KG) 5.81 5.88 5.15 7.61 10.70 14.25 15.67 16.83 14.63 11.80 8.63 6.42 10.28 VAPOUR PRESSURE (HPA) 9.46 9.58 8.39 12.30 17.23 22.69 24.86 26.64 23.37 19.02 13.99 10.49 16.50 SATURATION DEF. (HPA) 1.58 1.64 2.16 3.90 5.37 8.10 8.12 6.99 6.12 3.77 2.01 1.67 4.29 RELATIVE HUMIDITY (MEAN %) 87 87 82 80 78 75 77 81 81 85 88 88 82 RELATIVE HUMIDITY (MAX. %) 97 95 94 92 92 90 91 92 94 96 97 96 94 RELATIVE HUMIDITY (MIN. %) 71 75 67 65 62 59 62 67 64 70 72 72 67 RELATIVE HUMIDITY (MEAN% 03UTC) 94 92 92 89 90 87 89 92 94 94 96 95 92 RELATIVE HUMIDITY (MEAN% 09UTC) 75 78 71 69 65 63 65 70 68 72 75 74 70 RELATIVE HUMIDITY (MEAN% 15UTC) 86 85 77 77 72 68 71 75 75 84 89 88 79 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 11.1 33.7 119.3 16.9 2.7 6.7 18.7 32.2 128.0 66.3 179.1 111.0 725.7 DAYS WITH PRECIPITATION >=10 0 1 6 0 0 0 1 0 3 2 6 4 23 DAYS WITH PRECIPITATION >= 5 0 2 7 0 0 0 1 3 3 2 7 6 31 DAYS WITH PRECIPITATION >= 1 5 6 14 7 1 3 4 7 5 6 11 9 78 DAYS WITH PRECIPITATION 9 10 15 14 5 9 7 11 8 7 15 11 121 GREATEST DAILY PRECIPITATION 4.0 19.0 30.0 4.0 2.0 3.0 12.6 9.0 100.0 44.0 64.0 46.0 100.0 DAY 4 10 19 11 19 28 9 19 17 22 20 17 DAY WITH THUNDER STORM 0 0 0 0 0 4 3 0 0 2 0 0 9 DAYS WITH SNOW OR SLEET 0 0 2 0 0 0 0 0 0 0 0 0 2 DAYS WITH DUST 0 0 0 1 0 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 45 45 45 270 45 360 270 270 360 270 90 45 270 PREVAILING WIND SPEED(KNOTS) 2.9 3.0 3.0 3.4 2.7 2.8 6.0 3.3 2.4 5.1 3.0 2.8 4.4 PREVAILING WIND PERCENT 6.0 8.6 16.5 14.6 10.1 11.7 24.2 12.9 7.1 6.0 9.6 5.2 8.4 CALMS PERCENT OF WIND 77.4 72.4 63.3 63.8 65.7 57.1 57.3 61.7 70.0 75.0 70.0 82.7 68.0 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 354 12 31 299 345 309 281 271 345 295 339 40 311 VECTOR WIND MAGNITUDE(KNOTS) 0.2 0.3 0.5 0.6 0.6 0.7 1.6 0.8 0.3 0.3 0.1 0.1 0.4 WIND STEADINESES (MEAN %) 25.0 33.3 41.7 54.5 66.7 53.8 84.2 66.7 33.3 37.5 9.1 20.0 36.4 WIND SPEED (MEAN KNOTS) 0.8 0.9 1.2 1.1 0.9 1.3 1.9 1.2 0.9 0.8 1.1 0.5 1.1 FASTEST WIND DIRECTION 270 270 90 270 270 360 270 180 90 70 270 50 270 FASTEST WIND SPEED (KNOTS) 12 9 7 18 10 8 18 9 7 8 18 8 18 DAY 23 21 3 1 23 29 8 14 17 19 20 1 DAYS WITH SKY CLEAR (0-2)/8 11 7 11 4 13 16 16 8 13 18 12 14 143 DAYS WITH P.CLOUDY (3-6)/8 9 7 4 7 11 7 9 13 9 9 6 8 99 DAYS WITH CLOUDY (7-8)/8 11 15 16 19 7 7 6 10 8 4 12 9 124 DAYS WITH VISIBILITY =< 2 KM 12 12 7 17 0 0 3 6 9 8 8 10 92 DURATION OF SUNSHINE HOURS 131.5 97.7 153.6 130.0 243.9 235.4 250.2 150.1 175.1 235.1 136.1 152.2 2090.9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1022.7 1022.8 1023.5 1019.7 1019.4 1013.6 1011.9 1011.3 1018.0 1021.9 1023.5 1026.9 1019.6 MAX. QFE PRESSURE IN HPA 1032.6 1035.6 1040.2 1042.7 1029.9 1024.6 1016.9 1020.1 1025.8 1029.0 1036.8 1034.5 1042.7 DAY-HOUR 18-15 10-18 19-18 7-15 5- 6 7- 6 9- 6 14- 6 19-18 30-18 26- 6 4- 3 MIN. QFE PRESSURE IN HPA 1010.3 1010.2 1005.2 1006.0 1005.9 1002.1 1003.7 1003.1 1011.2 1012.8 1006.7 1012.6 1002.1 DAY-HOUR 23-12 21-12 2-15 1-12 30-15 20-18 5-15 23-21 13-21 10-15 19-12 29-15 MEAN QNH PRESSURE IN HPA 1019.8 1019.9 1020.6 1016.9 1016.5 1010.8 1009.1 1008.5 1015.1 1019.0 1020.7 1024.0 1016.8 MAX. QNH PRESSURE IN HPA 1029.7 1032.7 1037.3 1039.8 1027.0 1021.8 1014.1 1017.3 1023.0 1026.1 1033.9 1031.6 1039.8 DAY-HOUR 18-15 10-18 19-18 7-15 5- 6 7- 6 9- 6 14- 6 19-18 30-18 26- 6 4- 3 MIN. QNH PRESSURE IN HPA 1007.5 1007.4 1002.4 1003.2 1003.1 999.3 1000.9 1000.3 1008.4 1010.0 1003.9 1009.8 999.3 DAY-HOUR 23-12 21-12 2-15 1-12 30-15 20-18 5-15 23-21 13-21 10-15 19-12 29-15 MEAN QFF PRESSURE IN HPA 1020.1 1020.2 1020.8 1017.1 1016.9 1011.2 1009.5 1008.9 1015.5 1019.4 1021.0 1024.3 1017.1 MAX. QFF PRESSURE IN HPA 1030.0 1032.9 1037.5 1040.1 1027.4 1022.1 1014.4 1017.7 1023.3 1026.5 1034.2 1031.9 1040.1 DAY-HOUR 18-18 10-18 19-18 7-18 5- 9 7- 6 9- 9 14- 6 19-18 30-18 26- 6 4- 6 MIN. QFF PRESSURE IN HPA 1007.7 1007.7 1002.7 1003.5 1003.5 999.7 1001.3 1000.7 1008.8 1010.3 1004.2 1010.0 999.7 DAY-HOUR 23-15 21-12 2-15 1-12 30-15 20-18 5-15 23-21 13-21 10-15 19-12 29-15 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1022.9 1022.8 1022.9 1018.7 1019.5 1013.7 1011.8 1011.1 1017.8 1021.5 1023.4 1026.6 1019.4 MAX. QFE PRESSURE IN HPA 1032.2 1033.4 1037.8 1039.7 1027.3 1023.2 1016.3 1018.8 1023.8 1028.6 1036.1 1033.4 1039.7 DAY 28 11 20 8 25 7 9 14 20 31 26 4 MIN. QFE PRESSURE IN HPA 1013.3 1010.8 1010.0 1007.4 1006.3 1004.8 1004.5 1003.1 1011.4 1015.1 1009.1 1018.6 1003.1 DAY 8 21 2 25 31 30 6 24 4 21 20 1 MEAN QNH PRESSURE IN HPA 1020.0 1020.0 1020.1 1015.8 1016.6 1010.9 1008.9 1008.3 1014.9 1018.7 1020.6 1023.8 1016.5 MAX. QNH PRESSURE IN HPA 1029.3 1030.5 1034.9 1036.8 1024.5 1020.4 1013.5 1016.0 1021.0 1025.7 1033.2 1030.5 1036.8 DAY 28 11 20 8 25 7 9 14 20 31 26 4 MIN. QNH PRESSURE IN HPA 1010.5 1008.0 1007.2 1004.6 1003.5 1002.0 1001.7 1000.3 1008.6 1012.3 1006.3 1015.8 1000.3 DAY 8 21 2 25 31 30 6 24 4 21 20 1 MEAN QFF PRESSURE IN HPA 1020.3 1020.2 1020.3 1016.1 1017.0 1011.3 1009.4 1008.7 1015.3 1019.0 1020.9 1024.0 1016.9 MAX. QFF PRESSURE IN HPA 1029.5 1030.7 1035.1 1037.1 1024.8 1020.7 1013.8 1016.4 1021.3 1026.1 1033.5 1030.8 1037.1 DAY 28 11 20 8 25 7 9 14 21 31 26 4 MIN. QFF PRESSURE IN HPA 1010.7 1008.3 1007.4 1005.0 1003.9 1002.4 1002.1 1000.7 1009.0 1012.6 1006.6 1016.0 1000.7 DAY 8 21 2 25 31 30 6 24 4 21 20 30 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1023.1 1023.0 1023.8 1019.5 1019.8 1014.4 1012.2 1011.7 1018.3 1022.1 1023.7 1026.9 1019.9 MAX. QFE PRESSURE IN HPA 1032.0 1033.2 1037.2 1040.2 1029.4 1024.1 1016.7 1019.6 1023.6 1028.7 1036.1 1034.5 1040.2 DAY 28 11 19 7 5 7 9 14 20 31 26 4 MIN. QFE PRESSURE IN HPA 1013.3 1010.3 1009.9 1008.9 1007.0 1007.0 1005.3 1004.5 1011.7 1015.4 1008.9 1016.8 1004.5 DAY 23 21 2 25 31 21 6 24 4 21 19 29 MEAN QNH PRESSURE IN HPA 1020.2 1020.2 1020.9 1016.7 1017.0 1011.6 1009.4 1008.9 1015.5 1019.3 1020.9 1024.1 1017.1 MAX. QNH PRESSURE IN HPA 1029.1 1030.3 1034.3 1037.3 1026.5 1021.3 1013.9 1016.8 1020.8 1025.8 1033.2 1031.6 1037.3 DAY 28 11 19 7 5 7 9 14 20 31 26 4 MIN. QNH PRESSURE IN HPA 1010.5 1007.5 1007.1 1006.1 1004.2 1004.2 1002.5 1001.7 1008.9 1012.6 1006.1 1014.0 1001.7 DAY 23 21 2 25 31 21 6 24 4 21 19 29 MEAN QFF PRESSURE IN HPA 1020.5 1020.4 1021.1 1017.0 1017.3 1012.0 1009.8 1009.3 1015.9 1019.6 1021.1 1024.3 1017.4 MAX. QFF PRESSURE IN HPA 1029.3 1030.5 1034.5 1037.6 1026.9 1021.6 1014.2 1017.2 1021.1 1026.2 1033.5 1031.9 1037.6 DAY 28 11 19 7 5 7 9 14 20 31 26 4 MIN. QFF PRESSURE IN HPA 1010.7 1007.8 1007.3 1006.4 1004.6 1004.6 1002.9 1002.1 1009.3 1012.9 1006.4 1014.2 1002.1 DAY 23 21 2 25 31 21 6 24 4 21 19 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1023.6 1023.7 1024.5 1020.3 1020.1 1014.4 1012.4 1012.0 1018.8 1022.9 1024.4 1027.9 1020.4 MAX. QFE PRESSURE IN HPA 1032.2 1034.4 1038.3 1042.5 1029.9 1024.6 1016.9 1020.1 1024.5 1028.4 1036.8 1034.5 1042.5 DAY 28 7 19 7 5 7 9 14 19 31 26 4 MIN. QFE PRESSURE IN HPA 1013.1 1011.0 1009.6 1009.0 1007.2 1006.4 1006.1 1005.7 1011.9 1015.7 1008.4 1016.8 1005.7 DAY 23 21 2 26 30 30 5 24 4 10 19 29 MEAN QNH PRESSURE IN HPA 1020.8 1020.8 1021.6 1017.5 1017.3 1011.6 1009.6 1009.2 1016.0 1020.0 1021.5 1025.0 1017.6 MAX. QNH PRESSURE IN HPA 1029.3 1031.5 1035.4 1039.6 1027.0 1021.8 1014.1 1017.3 1021.7 1025.5 1033.9 1031.6 1039.6 DAY 28 7 19 7 5 7 9 14 19 31 26 4 MIN. QNH PRESSURE IN HPA 1010.3 1008.2 1006.8 1006.2 1004.4 1003.6 1003.3 1002.9 1009.1 1012.9 1005.6 1014.0 1002.9 DAY 23 21 2 26 30 30 5 24 4 10 19 29 MEAN QFF PRESSURE IN HPA 1021.0 1021.0 1021.9 1017.8 1017.6 1012.0 1010.0 1009.6 1016.4 1020.4 1021.8 1025.3 1017.9 MAX. QFF PRESSURE IN HPA 1029.6 1031.8 1035.6 1039.9 1027.4 1022.1 1014.4 1017.7 1022.0 1025.9 1034.2 1031.9 1039.9 DAY 28 7 19 7 5 7 9 14 19 31 26 4 MIN. QFF PRESSURE IN HPA 1010.5 1008.5 1007.0 1006.6 1004.8 1004.0 1003.7 1003.3 1009.5 1013.2 1005.9 1014.2 1003.3 DAY 23 21 2 26 30 30 5 24 4 10 19 29 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1022.3 1023.0 1023.8 1020.0 1019.6 1014.0 1012.0 1011.6 1018.1 1021.9 1023.5 1026.8 1019.7 MAX. QFE PRESSURE IN HPA 1031.1 1034.1 1038.5 1042.4 1029.9 1023.9 1016.9 1019.0 1023.7 1027.3 1034.9 1032.3 1042.4 DAY 27 7 19 7 5 7 9 14 20 22 26 4 MIN. QFE PRESSURE IN HPA 1011.5 1010.6 1007.2 1007.4 1007.4 1006.2 1005.6 1005.5 1011.6 1014.0 1007.3 1014.8 1005.5 DAY 23 21 2 1 30 30 5 23 4 10 19 29 MEAN QNH PRESSURE IN HPA 1019.5 1020.2 1021.0 1017.2 1016.8 1011.2 1009.2 1008.8 1015.3 1019.1 1020.6 1023.9 1016.9 MAX. QNH PRESSURE IN HPA 1028.2 1031.2 1035.6 1039.5 1027.0 1021.1 1014.1 1016.2 1020.9 1024.5 1032.0 1029.4 1039.5 DAY 27 7 19 7 5 7 9 14 20 22 26 4 MIN. QNH PRESSURE IN HPA 1008.7 1007.8 1004.4 1004.6 1004.6 1003.4 1002.8 1002.7 1008.8 1011.2 1004.5 1012.0 1002.7 DAY 23 21 2 1 30 30 5 23 4 10 19 29 MEAN QFF PRESSURE IN HPA 1019.8 1020.4 1021.2 1017.5 1017.2 1011.6 1009.6 1009.2 1015.7 1019.4 1020.9 1024.2 1017.2 MAX. QFF PRESSURE IN HPA 1028.5 1031.5 1035.8 1039.8 1027.4 1021.4 1014.4 1016.6 1021.2 1024.8 1032.3 1029.7 1039.8 DAY 27 7 19 7 5 7 9 14 20 22 26 4 MIN. QFF PRESSURE IN HPA 1008.9 1008.1 1004.6 1004.9 1005.0 1003.8 1003.2 1003.1 1009.2 1011.5 1004.8 1012.2 1003.1 DAY 23 21 2 1 30 30 5 23 4 10 19 29 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1022.0 1022.2 1023.2 1019.5 1019.0 1013.4 1011.6 1010.9 1017.5 1021.4 1023.1 1026.4 1019.2 MAX. QFE PRESSURE IN HPA 1031.5 1033.3 1038.5 1042.3 1028.1 1023.2 1016.1 1017.8 1023.8 1027.2 1033.6 1031.0 1042.3 DAY 18 10 19 7 5 7 9 14 19 30 26 4 MIN. QFE PRESSURE IN HPA 1010.3 1010.2 1006.4 1006.0 1007.3 1005.3 1004.8 1004.5 1011.5 1013.0 1006.7 1013.6 1004.5 DAY 23 21 2 1 30 20 5 23 4 10 19 29 MEAN QNH PRESSURE IN HPA 1019.2 1019.4 1020.4 1016.7 1016.2 1010.6 1008.7 1008.1 1014.7 1018.6 1020.3 1023.5 1016.3 MAX. QNH PRESSURE IN HPA 1028.6 1030.4 1035.6 1039.4 1025.2 1020.4 1013.3 1015.0 1021.0 1024.4 1030.7 1028.1 1039.4 DAY 18 10 19 7 5 7 9 14 19 30 26 4 MIN. QNH PRESSURE IN HPA 1007.5 1007.4 1003.6 1003.2 1004.5 1002.5 1002.0 1001.7 1008.7 1010.2 1003.9 1010.8 1001.7 DAY 23 21 2 1 30 20 5 23 4 10 19 29 MEAN QFF PRESSURE IN HPA 1019.4 1019.6 1020.6 1016.9 1016.5 1011.0 1009.1 1008.5 1015.1 1018.9 1020.6 1023.8 1016.7 MAX. QFF PRESSURE IN HPA 1028.9 1030.6 1035.8 1039.7 1025.6 1020.7 1013.6 1015.4 1021.3 1024.7 1031.0 1028.4 1039.7 DAY 18 10 19 7 5 7 9 14 19 30 26 4 MIN. QFF PRESSURE IN HPA 1007.8 1007.7 1003.8 1003.5 1004.9 1002.9 1002.4 1002.1 1009.1 1010.5 1004.2 1011.0 1002.1 DAY 23 21 2 1 30 20 5 23 4 10 19 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1960 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1022.3 1022.5 1023.2 1019.9 1018.7 1013.0 1011.4 1010.6 1017.5 1021.6 1023.5 1026.8 1019.2 MAX. QFE PRESSURE IN HPA 1032.6 1035.1 1039.3 1042.7 1027.2 1023.5 1015.9 1017.0 1024.7 1027.8 1034.7 1032.1 1042.7 DAY 18 10 19 7 5 7 9 14 19 30 25 3 MIN. QFE PRESSURE IN HPA 1010.3 1011.2 1005.2 1008.7 1005.9 1003.7 1003.7 1003.7 1011.5 1012.8 1007.0 1012.6 1003.7 DAY 23 21 2 26 30 20 5 23 4 10 19 29 MEAN QNH PRESSURE IN HPA 1019.4 1019.6 1020.4 1017.1 1015.8 1010.1 1008.5 1007.8 1014.7 1018.8 1020.7 1024.0 1016.4 MAX. QNH PRESSURE IN HPA 1029.7 1032.2 1036.4 1039.8 1024.4 1020.7 1013.1 1014.2 1021.9 1024.9 1031.8 1029.2 1039.8 DAY 18 10 19 7 5 7 9 14 19 30 25 3 MIN. QNH PRESSURE IN HPA 1007.5 1008.4 1002.4 1005.9 1003.1 1000.9 1000.9 1000.9 1008.7 1010.0 1004.2 1009.8 1000.9 DAY 23 21 2 26 30 20 5 23 4 10 19 29 MEAN QFF PRESSURE IN HPA 1019.7 1019.9 1020.6 1017.3 1016.2 1010.5 1008.9 1008.2 1015.0 1019.1 1021.0 1024.2 1016.7 MAX. QFF PRESSURE IN HPA 1030.0 1032.4 1036.6 1040.1 1024.7 1021.0 1013.4 1014.6 1022.2 1025.3 1032.1 1029.5 1040.1 DAY 18 10 19 7 5 7 9 14 19 30 25 3 MIN. QFF PRESSURE IN HPA 1007.7 1008.7 1002.7 1006.2 1003.5 1001.3 1001.3 1001.3 1009.1 1010.3 1004.5 1010.0 1001.3 DAY 23 21 2 26 30 20 5 23 4 10 19 29 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1022.5 1022.8 1023.4 1020.4 1019.2 1013.3 1012.1 1011.3 1018.1 1022.0 1023.4 1027.1 1019.6 MAX. QFE PRESSURE IN HPA 1032.6 1035.6 1040.2 1042.7 1027.5 1023.8 1016.1 1018.5 1025.8 1029.0 1035.8 1032.5 1042.7 DAY 18 10 19 7 8 7 9 13 19 30 25 3 MIN. QFE PRESSURE IN HPA 1012.2 1012.0 1007.3 1010.0 1006.3 1002.1 1004.3 1003.5 1011.5 1015.2 1007.9 1013.2 1002.1 DAY 23 21 2 25 30 20 5 23 13 10 19 29 MEAN QNH PRESSURE IN HPA 1019.7 1020.0 1020.6 1017.6 1016.4 1010.5 1009.3 1008.5 1015.3 1019.2 1020.6 1024.2 1016.8 MAX. QNH PRESSURE IN HPA 1029.7 1032.7 1037.3 1039.8 1024.7 1021.0 1013.3 1015.7 1023.0 1026.1 1032.9 1029.6 1039.8 DAY 18 10 19 7 8 7 9 13 19 30 25 3 MIN. QNH PRESSURE IN HPA 1009.4 1009.2 1004.5 1007.2 1003.5 999.3 1001.5 1000.7 1008.7 1012.4 1005.1 1010.4 999.3 DAY 23 21 2 25 30 20 5 23 13 10 19 29 MEAN QFF PRESSURE IN HPA 1019.9 1020.2 1020.8 1017.9 1016.8 1010.9 1009.7 1008.9 1015.7 1019.5 1020.9 1024.5 1017.1 MAX. QFF PRESSURE IN HPA 1030.0 1032.9 1037.5 1040.1 1025.0 1021.3 1013.6 1016.1 1023.3 1026.5 1033.2 1029.9 1040.1 DAY 18 10 19 7 8 7 9 13 19 30 25 3 MIN. QFF PRESSURE IN HPA 1009.6 1009.5 1004.7 1007.6 1003.9 999.7 1001.9 1001.1 1009.1 1012.7 1005.4 1010.6 999.7 DAY 23 21 2 25 30 20 5 23 13 10 19 29 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1022.8 1022.5 1023.0 1019.3 1019.0 1013.0 1011.9 1011.3 1017.9 1021.8 1023.4 1026.8 1019.4 MAX. QFE PRESSURE IN HPA 1032.3 1034.4 1039.2 1041.7 1027.0 1022.9 1015.9 1018.6 1024.6 1028.8 1036.0 1032.9 1041.7 DAY 27 10 19 7 24 7 8 13 19 30 25 3 MIN. QFE PRESSURE IN HPA 1014.0 1012.2 1010.2 1007.8 1006.5 1003.5 1004.0 1003.1 1011.2 1015.7 1008.9 1016.2 1003.1 DAY 23 20 1 26 30 20 5 23 13 20 18 29 MEAN QNH PRESSURE IN HPA 1019.9 1019.6 1020.1 1016.5 1016.2 1010.1 1009.1 1008.5 1015.0 1019.0 1020.6 1023.9 1016.6 MAX. QNH PRESSURE IN HPA 1029.4 1031.5 1036.3 1038.8 1024.2 1020.1 1013.1 1015.8 1021.8 1025.9 1033.1 1030.0 1038.8 DAY 27 10 19 7 24 7 8 13 19 30 25 3 MIN. QNH PRESSURE IN HPA 1011.2 1009.4 1007.4 1005.0 1003.7 1000.7 1001.2 1000.3 1008.4 1012.9 1006.1 1013.4 1000.3 DAY 23 20 1 26 30 20 5 23 13 20 18 29 MEAN QFF PRESSURE IN HPA 1020.2 1019.9 1020.4 1016.8 1016.5 1010.5 1009.5 1008.9 1015.4 1019.3 1020.9 1024.2 1016.9 MAX. QFF PRESSURE IN HPA 1029.7 1031.7 1036.5 1039.1 1024.5 1020.4 1013.5 1016.2 1022.1 1026.3 1033.4 1030.3 1039.1 DAY 27 10 19 7 24 7 8 13 19 30 25 3 MIN. QFF PRESSURE IN HPA 1011.5 1009.7 1007.6 1005.4 1004.1 1001.1 1001.6 1000.7 1008.8 1013.2 1006.4 1013.6 1000.7 DAY 23 20 1 26 30 20 5 23 13 20 18 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.5 8.0 9.7 14.1 21.2 24.4 26.1 25.2 22.1 17.2 13.0 11.0 16.6 MINIMUN AIR TEMPERATURE (C) 4.3 4.4 6.0 10.5 17.3 20.1 22.7 21.5 19.5 13.5 8.6 7.0 12.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 2 14 30 25 5 0 0 0 76 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 3 0 0 0 0 0 0 0 0 0 0 4 TEMPERATURE RECORDS LOWEST(C) 0.0 -2.0 1.0 5.0 14.0 14.0 20.0 17.0 16.0 6.0 3.0 2.0 -2.0 DAY 31 1 4 4 1 9 15 9 20 29 26 27 MAXIMUM AIR TEMPERATURE (C) 11.4 12.0 14.1 18.3 25.8 29.0 29.9 29.3 25.5 21.5 18.8 16.6 21.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 16 22 14 0 0 0 0 54 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.0 22.0 28.0 27.0 34.0 33.0 32.0 34.0 28.0 28.0 23.0 21.0 34.0 DAY 18 8 24 22 16 22 1 19 10 15 7 22 DIF. BETWEEN (MAX.-MIN.) (C) 7.1 7.6 8.1 7.8 8.5 8.9 7.2 7.8 6.0 8.0 10.2 9.6 8.1 MEAN DAILY TEMP. (MDT) (C) 7.8 8.2 10.0 14.4 21.5 24.5 26.3 25.4 22.5 17.5 13.7 11.8 17.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 33.0 111.0 165.5 137.0 46.0 1.5 0.0 0.0 494.0 HEATING DEG. DAYS(BASE 18 0C) 315.0 274.0 247.5 115.0 1.5 0.0 0.0 0.0 0.0 39.0 128.5 192.0 1312.5 DEWPOINT (MEAN C) 5.3 4.3 6.3 10.7 17.1 18.7 21.4 21.2 19.3 13.9 10.4 8.6 13.1 MIXING RATIO (G/KG) 5.54 5.21 5.97 8.07 12.24 13.73 16.08 16.00 14.07 9.97 7.97 7.02 10.16 VAPOUR PRESSURE (HPA) 9.05 8.50 9.69 13.04 19.56 21.86 25.49 25.41 22.46 16.14 12.91 11.38 16.29 SATURATION DEF. (HPA) 1.56 2.45 2.74 3.47 6.11 9.38 8.78 7.15 4.40 4.05 2.65 2.15 4.58 RELATIVE HUMIDITY (MEAN %) 87 80 81 81 79 72 76 80 85 82 85 86 81 RELATIVE HUMIDITY (MAX. %) 96 93 95 94 92 89 90 93 96 95 95 96 94 RELATIVE HUMIDITY (MIN. %) 71 57 64 65 62 53 61 62 72 63 68 68 64 RELATIVE HUMIDITY (MEAN% 03UTC) 94 91 92 91 91 86 88 92 94 94 94 93 92 RELATIVE HUMIDITY (MEAN% 09UTC) 75 66 69 70 65 58 64 68 75 66 69 70 68 RELATIVE HUMIDITY (MEAN% 15UTC) 85 74 75 77 72 65 70 73 80 78 85 87 77 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 78.6 18.9 62.3 43.1 17.1 5.0 50.5 53.7 176.2 33.0 74.3 59.3 672.0 DAYS WITH PRECIPITATION >=10 2 0 3 2 1 0 2 1 7 2 3 1 24 DAYS WITH PRECIPITATION >= 5 6 2 5 3 1 0 3 4 11 3 3 2 43 DAYS WITH PRECIPITATION >= 1 11 5 8 4 1 2 5 7 13 3 5 3 67 DAYS WITH PRECIPITATION 14 7 9 9 5 2 8 11 15 6 6 8 100 GREATEST DAILY PRECIPITATION 22.0 6.0 17.0 19.0 16.3 3.0 19.0 29.0 53.0 15.0 35.0 48.0 53.0 DAY 13 19 10 16 1 7 16 8 2 24 14 16 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 3 0 0 0 1 4 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 1 0 0 1 WIND DIRECTION (PREVAILING) 90 45 270 270 270 270 270 270 270 45 45 45 270 PREVAILING WIND SPEED(KNOTS) 3.0 3.4 5.6 5.0 6.6 4.5 4.1 4.4 3.4 2.8 3.4 2.5 4.9 PREVAILING WIND PERCENT 8.5 16.1 8.5 8.8 10.1 12.5 20.6 8.5 9.6 11.7 8.8 7.3 8.1 CALMS PERCENT OF WIND 79.4 67.0 75.0 71.7 61.7 60.8 58.1 67.3 70.8 73.0 78.8 80.6 70.4 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 78 17 307 324 323 300 269 300 290 346 45 350 315 VECTOR WIND MAGNITUDE(KNOTS) 0.3 0.5 0.5 0.6 0.7 0.8 1.2 0.6 0.5 0.3 0.4 0.2 0.4 WIND STEADINESES (MEAN %) 50.0 33.3 41.7 54.5 41.2 53.3 75.0 50.0 55.6 33.3 57.1 28.6 36.4 WIND SPEED (MEAN KNOTS) 0.6 1.5 1.2 1.1 1.7 1.5 1.6 1.2 0.9 0.9 0.7 0.7 1.1 FASTEST WIND DIRECTION 310 270 310 270 270 270 270 270 90 270 50 290 270 FASTEST WIND SPEED (KNOTS) 10 20 20 18 18 18 20 15 8 12 9 10 20 DAY 22 9 17 27 27 15 15 20 19 23 17 24 DAYS WITH SKY CLEAR (0-2)/8 12 11 9 7 19 22 16 13 6 16 13 13 157 DAYS WITH P.CLOUDY (3-6)/8 8 7 10 15 8 5 7 11 8 8 13 14 114 DAYS WITH CLOUDY (7-8)/8 11 10 12 8 4 3 8 7 16 7 4 4 94 DAYS WITH VISIBILITY =< 2 KM 7 4 10 5 1 0 4 5 12 5 7 10 70 DURATION OF SUNSHINE HOURS 128.6 142.3 161.7 189.0 261.9 299.0 224.3 201.8 113.5 152.6 166.1 178.4 2219.2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1024.8 1024.4 1020.5 1019.1 1014.2 1012.8 1011.4 1014.0 1016.0 1024.3 1021.3 1020.0 1018.6 MAX. QFE PRESSURE IN HPA 1034.8 1037.5 1039.7 1032.5 1026.2 1021.2 1018.7 1021.0 1022.9 1037.6 1031.3 1031.8 1039.7 DAY-HOUR 8- 6 22- 6 3-15 16-18 1- 6 7-18 24- 6 9- 6 7- 6 24-18 14-15 6- 6 MIN. QFE PRESSURE IN HPA 1009.7 1010.9 1007.7 1006.4 1001.6 1003.5 1002.9 1004.1 1006.7 1012.3 1003.9 1002.3 1001.6 DAY-HOUR 26-21 8-18 16-21 13- 9 27-21 1- 0 11-15 19-21 12- 9 15-12 22- 9 22-18 MEAN QNH PRESSURE IN HPA 1021.9 1021.5 1017.7 1016.3 1011.3 1010.0 1008.6 1011.2 1013.2 1021.4 1018.5 1017.2 1015.7 MAX. QNH PRESSURE IN HPA 1031.9 1034.6 1036.8 1029.6 1023.4 1018.4 1015.9 1018.2 1020.1 1034.7 1028.4 1028.9 1036.8 DAY-HOUR 8- 6 22- 6 3-15 16-18 1- 6 7-18 24- 6 9- 6 7- 6 24-18 14-15 6- 6 MIN. QNH PRESSURE IN HPA 1006.9 1008.1 1004.9 1003.6 998.8 1000.7 1000.1 1001.3 1003.9 1009.5 1001.1 999.5 998.8 DAY-HOUR 26-21 8-18 16-21 13- 9 27-21 1- 0 11-15 19-21 12- 9 15-12 22- 9 22-18 MEAN QFF PRESSURE IN HPA 1022.2 1021.8 1017.9 1016.6 1011.7 1010.4 1009.0 1011.6 1013.6 1021.7 1018.8 1017.5 1016.1 MAX. QFF PRESSURE IN HPA 1032.2 1034.9 1037.0 1029.9 1023.7 1018.7 1016.3 1018.5 1020.4 1035.0 1028.7 1029.2 1037.0 DAY-HOUR 8- 6 22- 6 3-15 16-18 1- 6 7-18 24- 6 9- 6 7- 6 24-18 14-15 6- 6 MIN. QFF PRESSURE IN HPA 1007.1 1008.4 1005.2 1003.9 999.2 1001.1 1000.5 1001.7 1004.3 1009.8 1001.4 999.8 999.2 DAY-HOUR 26-21 8-18 16-21 13- 9 27-21 1- 0 11-15 19-21 12-15 15-15 22-12 22-18 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1024.7 1024.1 1020.1 1018.6 1014.1 1012.5 1011.2 1013.6 1015.9 1023.9 1021.0 1020.0 1018.3 MAX. QFE PRESSURE IN HPA 1033.7 1036.4 1038.0 1031.9 1024.5 1019.5 1017.0 1019.8 1021.9 1036.9 1029.0 1030.0 1038.0 DAY 9 22 4 17 1 8 24 9 7 25 15 7 MIN. QFE PRESSURE IN HPA 1012.1 1014.4 1009.1 1007.5 1004.2 1003.5 1007.0 1006.7 1007.0 1015.0 1007.5 1005.3 1003.5 DAY 18 9 17 30 25 1 11 19 12 15 22 22 MEAN QNH PRESSURE IN HPA 1021.8 1021.3 1017.3 1015.8 1011.2 1009.7 1008.4 1010.8 1013.1 1021.0 1018.2 1017.2 1015.5 MAX. QNH PRESSURE IN HPA 1030.8 1033.5 1035.1 1029.0 1021.7 1016.7 1014.2 1017.0 1019.1 1034.0 1026.1 1027.1 1035.1 DAY 9 22 4 17 1 8 24 9 7 25 15 7 MIN. QNH PRESSURE IN HPA 1009.3 1011.6 1006.3 1004.7 1001.4 1000.7 1004.2 1003.9 1004.2 1012.2 1004.7 1002.5 1000.7 DAY 18 9 17 30 25 1 11 19 12 15 22 22 MEAN QFF PRESSURE IN HPA 1022.1 1021.5 1017.5 1016.1 1011.6 1010.0 1008.8 1011.2 1013.5 1021.4 1018.5 1017.4 1015.8 MAX. QFF PRESSURE IN HPA 1031.0 1033.8 1035.3 1029.3 1022.0 1017.0 1014.6 1017.3 1019.4 1034.3 1026.4 1027.4 1035.3 DAY 9 22 4 17 1 8 24 9 7 25 15 7 MIN. QFF PRESSURE IN HPA 1009.5 1011.9 1006.6 1005.1 1001.8 1001.1 1004.6 1004.3 1004.6 1012.5 1005.0 1002.8 1001.1 DAY 18 9 17 30 25 1 11 19 12 15 22 22 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1024.9 1024.6 1020.9 1019.3 1014.7 1013.2 1011.8 1014.4 1016.4 1024.3 1021.6 1020.5 1018.9 MAX. QFE PRESSURE IN HPA 1034.2 1037.0 1038.3 1032.5 1025.4 1020.3 1018.4 1020.6 1022.4 1036.5 1029.0 1030.6 1038.3 DAY 9 22 4 17 1 7 24 9 7 25 15 6 MIN. QFE PRESSURE IN HPA 1012.9 1016.5 1010.5 1007.8 1005.7 1005.1 1006.4 1006.9 1007.7 1015.4 1007.7 1004.8 1004.8 DAY 18 7 17 29 25 14 11 19 12 15 22 22 MEAN QNH PRESSURE IN HPA 1022.1 1021.8 1018.1 1016.5 1011.8 1010.4 1009.0 1011.5 1013.6 1021.5 1018.8 1017.6 1016.1 MAX. QNH PRESSURE IN HPA 1031.3 1034.1 1035.4 1029.6 1022.6 1017.5 1015.6 1017.8 1019.6 1033.6 1026.1 1027.7 1035.4 DAY 9 22 4 17 1 7 24 9 7 25 15 6 MIN. QNH PRESSURE IN HPA 1010.1 1013.7 1007.7 1005.0 1002.9 1002.3 1003.6 1004.1 1004.9 1012.6 1004.9 1002.0 1002.0 DAY 18 7 17 29 25 14 11 19 12 15 22 22 MEAN QFF PRESSURE IN HPA 1022.3 1022.0 1018.3 1016.8 1012.2 1010.8 1009.4 1011.9 1014.0 1021.8 1019.1 1017.9 1016.4 MAX. QFF PRESSURE IN HPA 1031.5 1034.3 1035.6 1029.9 1022.9 1017.8 1016.0 1018.1 1019.9 1033.9 1026.4 1028.0 1035.6 DAY 9 22 4 17 1 7 24 9 7 25 15 6 MIN. QFF PRESSURE IN HPA 1010.3 1013.9 1007.9 1005.3 1003.3 1002.7 1004.0 1004.5 1005.3 1012.9 1005.2 1002.3 1002.3 DAY 18 7 17 29 25 14 11 19 12 15 22 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1025.7 1025.4 1021.7 1019.7 1015.1 1013.5 1012.1 1014.9 1016.7 1025.0 1022.3 1021.1 1019.4 MAX. QFE PRESSURE IN HPA 1034.8 1037.5 1038.8 1031.7 1026.2 1020.0 1018.7 1021.0 1022.9 1037.4 1028.6 1031.8 1038.8 DAY 8 22 4 17 1 8 24 9 7 25 15 6 MIN. QFE PRESSURE IN HPA 1014.5 1017.3 1010.1 1008.3 1007.8 1005.4 1005.6 1007.2 1007.3 1014.2 1007.1 1004.8 1004.8 DAY 18 7 30 13 31 14 11 19 12 15 22 22 MEAN QNH PRESSURE IN HPA 1022.9 1022.6 1018.9 1016.9 1012.3 1010.7 1009.3 1012.0 1013.9 1022.2 1019.5 1018.3 1016.6 MAX. QNH PRESSURE IN HPA 1031.9 1034.6 1035.9 1028.8 1023.4 1017.2 1015.9 1018.2 1020.1 1034.5 1025.7 1028.9 1035.9 DAY 8 22 4 17 1 8 24 9 7 25 15 6 MIN. QNH PRESSURE IN HPA 1011.7 1014.5 1007.3 1005.5 1005.0 1002.6 1002.8 1004.4 1004.5 1011.4 1004.3 1002.0 1002.0 DAY 18 7 30 13 31 14 11 19 12 15 22 22 MEAN QFF PRESSURE IN HPA 1023.1 1022.8 1019.2 1017.2 1012.7 1011.1 1009.7 1012.4 1014.3 1022.5 1019.7 1018.5 1016.9 MAX. QFF PRESSURE IN HPA 1032.2 1034.9 1036.1 1029.1 1023.7 1017.5 1016.3 1018.5 1020.4 1034.8 1026.0 1029.2 1036.1 DAY 8 22 4 17 1 8 24 9 7 25 15 6 MIN. QFF PRESSURE IN HPA 1011.9 1014.7 1007.6 1005.8 1005.4 1003.0 1003.2 1004.8 1004.9 1011.7 1004.6 1002.3 1002.3 DAY 18 7 30 13 31 14 11 19 12 15 22 22 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1024.8 1024.5 1021.1 1019.2 1014.8 1013.3 1011.8 1014.6 1016.0 1024.2 1021.2 1019.8 1018.8 MAX. QFE PRESSURE IN HPA 1033.9 1036.4 1037.3 1030.8 1025.1 1019.8 1018.3 1020.9 1022.3 1036.2 1028.8 1031.5 1037.3 DAY 8 21 3 17 1 7 24 9 7 24 14 6 MIN. QFE PRESSURE IN HPA 1013.0 1015.9 1009.8 1006.4 1007.8 1004.9 1004.4 1006.1 1006.7 1012.7 1003.9 1003.8 1003.8 DAY 21 8 30 13 31 14 11 19 12 15 22 22 MEAN QNH PRESSURE IN HPA 1021.9 1021.7 1018.2 1016.4 1011.9 1010.5 1009.0 1011.7 1013.2 1021.4 1018.4 1017.0 1015.9 MAX. QNH PRESSURE IN HPA 1031.0 1033.5 1034.4 1027.9 1022.3 1017.0 1015.5 1018.1 1019.5 1033.3 1025.9 1028.6 1034.4 DAY 8 21 3 17 1 7 24 9 7 24 14 6 MIN. QNH PRESSURE IN HPA 1010.2 1013.1 1007.0 1003.6 1005.0 1002.1 1001.6 1003.3 1003.9 1009.9 1001.1 1001.0 1001.0 DAY 21 8 30 13 31 14 11 19 12 15 22 22 MEAN QFF PRESSURE IN HPA 1022.2 1021.9 1018.5 1016.7 1012.3 1010.9 1009.4 1012.2 1013.6 1021.7 1018.7 1017.3 1016.3 MAX. QFF PRESSURE IN HPA 1031.3 1033.8 1034.7 1028.2 1022.6 1017.3 1015.9 1018.4 1019.8 1033.6 1026.2 1028.9 1034.7 DAY 8 21 3 17 1 7 24 9 7 24 14 6 MIN. QFF PRESSURE IN HPA 1010.4 1013.4 1007.3 1003.9 1005.4 1002.5 1002.0 1003.7 1004.3 1010.3 1001.4 1001.3 1001.3 DAY 21 8 30 13 31 14 11 19 12 15 22 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1024.2 1023.8 1020.2 1018.7 1013.9 1012.5 1011.0 1013.8 1015.3 1023.8 1020.8 1019.4 1018.1 MAX. QFE PRESSURE IN HPA 1033.6 1035.4 1037.8 1029.4 1022.5 1019.4 1016.5 1019.5 1021.2 1036.7 1029.6 1030.7 1037.8 DAY 8 21 3 17 1 7 24 26 24 24 14 6 MIN. QFE PRESSURE IN HPA 1011.0 1012.5 1008.9 1007.0 1006.2 1004.4 1003.6 1004.9 1006.7 1012.3 1003.9 1002.6 1002.6 DAY 20 8 30 13 27 14 11 19 12 15 22 22 MEAN QNH PRESSURE IN HPA 1021.3 1020.9 1017.3 1015.9 1011.1 1009.7 1008.2 1011.0 1012.5 1020.9 1018.0 1016.5 1015.3 MAX. QNH PRESSURE IN HPA 1030.7 1032.5 1034.9 1026.5 1019.7 1016.6 1013.7 1016.7 1018.4 1033.8 1026.7 1027.8 1034.9 DAY 8 21 3 17 1 7 24 26 24 24 14 6 MIN. QNH PRESSURE IN HPA 1008.2 1009.7 1006.1 1004.2 1003.4 1001.6 1000.8 1002.1 1003.9 1009.5 1001.1 999.8 999.8 DAY 20 8 30 13 27 14 11 19 12 15 22 22 MEAN QFF PRESSURE IN HPA 1021.6 1021.2 1017.6 1016.2 1011.4 1010.1 1008.6 1011.4 1012.8 1021.3 1018.3 1016.8 1015.6 MAX. QFF PRESSURE IN HPA 1031.0 1032.8 1035.2 1026.8 1020.0 1016.9 1014.1 1017.1 1018.7 1034.1 1027.0 1028.1 1035.2 DAY 8 21 3 17 1 7 24 26 24 24 14 6 MIN. QFF PRESSURE IN HPA 1008.5 1010.0 1006.4 1004.5 1003.8 1002.0 1001.2 1002.5 1004.3 1009.8 1001.4 1000.1 1000.1 DAY 20 8 30 13 31 14 11 19 12 15 22 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1961 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1024.7 1024.3 1020.2 1018.8 1013.4 1012.2 1010.6 1013.4 1015.5 1024.1 1021.4 1019.9 1018.2 MAX. QFE PRESSURE IN HPA 1033.6 1036.2 1039.7 1031.3 1022.1 1020.0 1015.9 1019.4 1021.4 1037.3 1031.3 1031.2 1039.7 DAY 8 21 3 16 1 7 24 8 24 24 14 6 MIN. QFE PRESSURE IN HPA 1010.4 1013.1 1009.0 1008.0 1003.6 1003.7 1002.9 1004.6 1006.7 1012.3 1006.4 1002.6 1002.6 DAY 26 8 30 29 27 5 11 19 12 15 22 22 MEAN QNH PRESSURE IN HPA 1021.9 1021.4 1017.4 1016.0 1010.6 1009.4 1007.8 1010.6 1012.6 1021.2 1018.5 1017.1 1015.4 MAX. QNH PRESSURE IN HPA 1030.7 1033.3 1036.8 1028.4 1019.3 1017.2 1013.1 1016.6 1018.6 1034.4 1028.4 1028.3 1036.8 DAY 8 21 3 16 1 7 24 8 24 24 14 6 MIN. QNH PRESSURE IN HPA 1007.6 1010.3 1006.2 1005.2 1000.8 1000.9 1000.1 1001.8 1003.9 1009.5 1003.6 999.8 999.8 DAY 26 8 30 29 27 5 11 19 12 15 22 22 MEAN QFF PRESSURE IN HPA 1022.1 1021.7 1017.6 1016.3 1011.0 1009.8 1008.2 1011.0 1013.0 1021.5 1018.8 1017.3 1015.7 MAX. QFF PRESSURE IN HPA 1030.9 1033.5 1037.0 1028.7 1019.6 1017.5 1013.5 1016.9 1018.9 1034.7 1028.7 1028.6 1037.0 DAY 8 21 3 16 14 7 24 8 24 24 14 6 MIN. QFF PRESSURE IN HPA 1007.8 1010.5 1006.5 1005.5 1001.2 1001.3 1000.5 1002.2 1004.3 1009.8 1003.9 1000.1 1000.1 DAY 26 8 30 29 27 5 11 19 12 15 22 22 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1024.8 1024.4 1020.2 1019.5 1014.0 1012.8 1011.3 1013.9 1016.4 1024.6 1021.3 1020.1 1018.6 MAX. QFE PRESSURE IN HPA 1033.6 1036.6 1039.4 1032.5 1022.4 1021.2 1015.9 1020.3 1022.5 1037.6 1030.9 1030.7 1039.4 DAY 8 21 3 16 17 7 15 8 24 24 14 6 MIN. QFE PRESSURE IN HPA 1010.1 1010.9 1008.6 1007.5 1001.8 1004.3 1005.1 1004.6 1007.6 1014.0 1005.2 1002.3 1001.8 DAY 26 8 16 29 27 5 11 19 11 15 22 22 MEAN QNH PRESSURE IN HPA 1022.0 1021.6 1017.4 1016.7 1011.1 1009.9 1008.5 1011.0 1013.6 1021.8 1018.5 1017.3 1015.8 MAX. QNH PRESSURE IN HPA 1030.7 1033.7 1036.5 1029.6 1019.6 1018.4 1013.1 1017.5 1019.7 1034.7 1028.0 1027.8 1036.5 DAY 8 21 3 16 17 7 15 8 24 24 14 6 MIN. QNH PRESSURE IN HPA 1007.3 1008.1 1005.8 1004.7 999.0 1001.5 1002.3 1001.8 1004.8 1011.2 1002.4 999.5 999.0 DAY 26 8 16 29 27 5 11 19 11 15 22 22 MEAN QFF PRESSURE IN HPA 1022.2 1021.8 1017.7 1017.0 1011.5 1010.3 1008.9 1011.5 1013.9 1022.1 1018.8 1017.5 1016.1 MAX. QFF PRESSURE IN HPA 1030.9 1034.0 1036.7 1029.9 1019.9 1018.7 1013.5 1017.8 1020.0 1035.0 1028.3 1028.1 1036.7 DAY 8 21 3 16 17 7 24 8 24 24 14 6 MIN. QFF PRESSURE IN HPA 1007.5 1008.4 1006.1 1005.0 999.4 1001.9 1002.7 1002.2 1005.2 1011.5 1002.7 999.8 999.4 DAY 26 8 16 29 27 5 11 19 11 15 22 22 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1024.5 1024.0 1019.9 1019.3 1013.6 1012.7 1011.4 1013.5 1016.2 1024.4 1021.0 1019.8 1018.3 MAX. QFE PRESSURE IN HPA 1033.4 1036.2 1039.5 1032.2 1021.9 1020.2 1016.0 1020.3 1022.1 1037.3 1028.9 1030.0 1039.5 DAY 8 21 3 16 10 7 23 8 6 24 28 6 MIN. QFE PRESSURE IN HPA 1009.7 1011.6 1007.7 1007.5 1001.6 1005.1 1007.8 1004.1 1007.0 1014.7 1007.1 1003.3 1001.6 DAY 26 8 16 29 27 14 11 19 11 14 22 22 MEAN QNH PRESSURE IN HPA 1021.7 1021.2 1017.0 1016.5 1010.7 1009.9 1008.6 1010.6 1013.4 1021.5 1018.2 1016.9 1015.5 MAX. QNH PRESSURE IN HPA 1030.5 1033.3 1036.6 1029.3 1019.1 1017.4 1013.2 1017.5 1019.3 1034.4 1026.0 1027.1 1036.6 DAY 8 21 3 16 10 7 23 8 6 24 28 6 MIN. QNH PRESSURE IN HPA 1006.9 1008.8 1004.9 1004.7 998.8 1002.3 1005.0 1001.3 1004.2 1011.9 1004.3 1000.5 998.8 DAY 26 8 16 29 27 14 11 19 11 14 22 22 MEAN QFF PRESSURE IN HPA 1021.9 1021.4 1017.3 1016.8 1011.1 1010.3 1009.0 1011.0 1013.8 1021.9 1018.4 1017.2 1015.8 MAX. QFF PRESSURE IN HPA 1030.8 1033.6 1036.8 1029.6 1019.4 1017.7 1013.6 1017.8 1019.6 1034.7 1026.3 1027.4 1036.8 DAY 8 21 3 16 10 7 23 8 6 24 28 6 MIN. QFF PRESSURE IN HPA 1007.1 1009.1 1005.2 1005.1 999.2 1002.7 1005.4 1001.7 1004.6 1012.2 1004.6 1000.8 999.2 DAY 26 8 16 29 27 14 11 19 11 14 22 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.4 9.5 12.3 14.2 19.6 22.7 27.1 25.9 22.5 18.2 12.0 9.1 16.7 MINIMUN AIR TEMPERATURE (C) 4.0 6.5 9.2 11.1 16.1 18.9 22.8 21.6 18.0 14.1 8.4 5.5 13.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 8 30 20 7 0 0 0 65 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 0 1 TEMPERATURE RECORDS LOWEST(C) 0.0 2.0 5.0 7.0 13.0 12.0 20.0 18.0 12.0 7.0 2.0 1.0 0.0 DAY 25 23 13 14 1 11 8 30 29 12 16 1 MAXIMUM AIR TEMPERATURE (C) 11.6 13.3 16.2 17.5 23.5 26.7 31.5 30.4 27.7 22.9 17.5 14.4 21.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 1 3 28 23 7 0 0 0 62 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 20.0 19.0 23.0 22.0 32.0 32.0 35.0 34.0 32.0 28.0 22.0 25.0 35.0 DAY 4 16 24 29 17 7 22 22 11 1 1 18 DIF. BETWEEN (MAX.-MIN.) (C) 7.6 6.8 7.0 6.4 7.4 7.8 8.7 8.8 9.7 8.8 9.1 8.9 8.1 MEAN DAILY TEMP. (MDT) (C) 7.8 9.9 12.7 14.3 19.8 22.8 27.2 26.0 22.8 18.5 12.9 9.9 17.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 8.0 62.5 191.0 155.0 63.5 9.5 0.0 0.0 489.5 HEATING DEG. DAYS(BASE 18 0C) 316.0 226.5 164.5 111.5 3.0 0.5 0.0 0.0 0.0 28.0 154.5 250.0 1254.5 DEWPOINT (MEAN C) 4.9 7.0 9.6 11.2 15.7 19.1 22.9 22.9 19.6 15.6 9.5 6.9 13.7 MIXING RATIO (G/KG) 5.35 6.23 7.45 8.27 11.13 13.92 17.77 17.72 14.43 11.19 7.53 6.20 10.60 VAPOUR PRESSURE (HPA) 8.75 10.11 12.06 13.36 17.88 22.23 28.10 28.11 23.07 18.04 12.29 10.09 17.01 SATURATION DEF. (HPA) 1.77 1.97 2.38 3.01 5.20 5.74 8.30 5.96 4.87 3.42 2.32 1.86 3.90 RELATIVE HUMIDITY (MEAN %) 85 85 85 83 80 82 79 84 85 86 86 87 84 RELATIVE HUMIDITY (MAX. %) 96 95 95 94 92 94 93 97 98 97 97 96 95 RELATIVE HUMIDITY (MIN. %) 67 71 71 68 64 67 63 69 66 70 66 71 68 RELATIVE HUMIDITY (MEAN% 03UTC) 94 93 93 93 90 92 91 94 97 96 96 93 94 RELATIVE HUMIDITY (MEAN% 09UTC) 71 75 73 71 67 71 66 73 70 72 66 73 71 RELATIVE HUMIDITY (MEAN% 15UTC) 84 81 84 79 76 76 72 78 79 84 86 86 80 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 127.2 43.6 34.8 38.1 7.0 101.4 3.0 57.0 34.1 163.9 40.0 56.2 706.3 DAYS WITH PRECIPITATION >=10 8 2 1 1 0 3 0 2 2 3 1 3 26 DAYS WITH PRECIPITATION >= 5 9 4 2 3 0 3 0 3 2 3 2 3 34 DAYS WITH PRECIPITATION >= 1 11 7 3 11 4 5 1 6 3 4 8 8 71 DAYS WITH PRECIPITATION 11 11 5 15 8 7 1 8 5 8 8 10 97 GREATEST DAILY PRECIPITATION 28.0 15.0 23.0 13.0 2.0 56.0 3.0 29.0 18.0 75.0 19.0 20.0 75.0 DAY 23 8 29 5 21 10 13 26 13 17 13 10 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 2 0 0 0 0 0 0 1 0 1 0 4 WIND DIRECTION (PREVAILING) 90 45 270 270 45 270 270 360 45 360 90 90 270 PREVAILING WIND SPEED(KNOTS) 3.9 4.2 5.4 6.3 4.5 6.0 4.7 4.7 3.5 3.4 4.3 5.2 5.6 PREVAILING WIND PERCENT 12.5 11.2 14.9 18.3 10.1 12.1 13.7 10.9 8.3 7.7 12.9 19.8 7.2 CALMS PERCENT OF WIND 72.6 69.6 61.7 65.0 64.5 61.7 63.7 56.0 69.6 70.2 71.7 73.0 66.6 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 65 50 342 301 350 316 303 315 346 46 62 76 354 VECTOR WIND MAGNITUDE(KNOTS) 0.5 0.6 0.4 1.1 0.8 1.0 1.0 1.0 0.8 0.6 0.6 1.2 0.5 WIND STEADINESES (MEAN %) 45.5 42.9 22.2 55.0 50.0 50.0 62.5 50.0 61.5 54.5 54.5 85.7 31.3 WIND SPEED (MEAN KNOTS) 1.1 1.4 1.8 2.0 1.6 2.0 1.6 2.0 1.3 1.1 1.1 1.4 1.6 FASTEST WIND DIRECTION 270 270 80 290 270 300 290 270 20 270 90 70 270 FASTEST WIND SPEED (KNOTS) 22 13 14 18 12 20 10 12 14 10 12 15 22 DAY 5 17 2 29 5 6 6 2 3 15 8 25 DAYS WITH SKY CLEAR (0-2)/8 11 5 7 7 12 16 26 20 18 17 14 11 164 DAYS WITH P.CLOUDY (3-6)/8 10 10 9 8 10 7 5 5 7 7 9 6 93 DAYS WITH CLOUDY (7-8)/8 10 13 15 15 9 7 0 6 5 7 7 14 108 DAYS WITH VISIBILITY =< 2 KM 10 8 6 4 2 5 1 0 2 3 0 3 44 DURATION OF SUNSHINE HOURS 130.8 118.1 158.9 152.7 230.5 239.4 330.9 271.5 199.4 201.4 180.7 121.9 2336.2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1025.5 1020.7 1018.7 1019.4 1017.6 1015.6 1012.3 1015.4 1019.1 1022.3 1029.0 1021.9 1019.8 MAX. QFE PRESSURE IN HPA 1041.6 1037.0 1030.2 1032.4 1027.3 1024.5 1019.2 1024.8 1029.4 1031.2 1039.5 1037.7 1041.6 DAY-HOUR 18- 6 11- 6 5-18 19- 6 18- 9 17-21 6- 9 26- 6 25-18 11-15 23- 6 3-15 MIN. QFE PRESSURE IN HPA 1010.3 998.4 997.2 1008.9 1006.8 1003.7 1004.8 1003.6 1006.1 1009.4 1018.2 1005.5 997.2 DAY-HOUR 4-18 20-18 27-18 29- 3 9-12 7-15 21-21 21-15 11-15 9-15 7- 0 19-15 MEAN QNH PRESSURE IN HPA 1022.7 1017.9 1015.9 1016.6 1014.8 1012.8 1009.4 1012.6 1016.2 1019.4 1026.2 1019.1 1017.0 MAX. QNH PRESSURE IN HPA 1038.7 1034.1 1027.3 1029.5 1024.5 1021.7 1016.4 1022.0 1026.5 1028.3 1036.6 1034.8 1038.7 DAY-HOUR 18- 6 11- 6 5-18 19- 6 18- 9 17-21 6- 9 26- 6 25-18 11-15 23- 6 3-15 MIN. QNH PRESSURE IN HPA 1007.5 995.6 994.4 1006.1 1004.0 1000.9 1002.0 1000.8 1003.3 1006.6 1015.4 1002.7 994.4 DAY-HOUR 4-18 20-18 27-18 29- 3 9-12 7-15 21-21 21-15 11-15 9-15 7- 0 19-15 MEAN QFF PRESSURE IN HPA 1022.9 1018.2 1016.2 1016.9 1015.1 1013.2 1009.9 1013.0 1016.6 1019.8 1026.4 1019.3 1017.3 MAX. QFF PRESSURE IN HPA 1039.0 1034.4 1027.6 1029.8 1024.8 1022.0 1016.8 1022.3 1026.9 1028.6 1036.9 1035.1 1039.0 DAY-HOUR 18- 6 11- 6 5-18 19- 6 18- 9 17-21 6- 9 26- 6 25-18 11-15 23- 6 3-15 MIN. QFF PRESSURE IN HPA 1007.7 995.9 994.7 1006.4 1004.4 1001.3 1002.4 1001.2 1003.7 1007.0 1015.7 1003.0 994.7 DAY-HOUR 4-18 20-18 27-18 29- 3 9-12 7-15 21-21 21-15 11-15 9-15 7- 0 19-18 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1025.3 1020.8 1018.0 1018.9 1017.3 1015.4 1011.9 1015.3 1018.7 1022.0 1028.9 1021.8 1019.5 MAX. QFE PRESSURE IN HPA 1037.7 1034.5 1028.8 1029.8 1026.2 1024.1 1018.1 1023.4 1027.4 1030.2 1037.9 1032.4 1037.9 DAY 18 11 6 19 19 18 27 26 26 12 23 4 MIN. QFE PRESSURE IN HPA 1011.6 1003.7 999.7 1009.2 1010.0 1006.7 1005.0 1005.2 1008.9 1010.3 1018.2 1008.0 999.7 DAY 5 18 28 27 9 29 22 22 12 10 7 17 MEAN QNH PRESSURE IN HPA 1022.4 1018.0 1015.1 1016.0 1014.5 1012.5 1009.1 1012.4 1015.9 1019.1 1026.0 1018.9 1016.7 MAX. QNH PRESSURE IN HPA 1034.8 1031.6 1025.9 1026.9 1023.4 1021.3 1015.3 1020.6 1024.6 1027.3 1035.0 1029.5 1035.0 DAY 18 11 6 19 19 18 27 26 26 12 23 4 MIN. QNH PRESSURE IN HPA 1008.8 1000.9 996.9 1006.4 1007.2 1003.9 1002.2 1002.4 1006.1 1007.5 1015.4 1005.2 996.9 DAY 5 18 28 27 9 29 22 22 12 10 7 17 MEAN QFF PRESSURE IN HPA 1022.7 1018.2 1015.4 1016.3 1014.9 1012.9 1009.5 1012.8 1016.3 1019.5 1026.3 1019.2 1017.0 MAX. QFF PRESSURE IN HPA 1035.1 1031.9 1026.2 1027.2 1023.7 1021.6 1015.7 1021.0 1024.9 1027.6 1035.3 1029.8 1035.3 DAY 18 11 6 19 19 18 27 26 26 12 23 4 MIN. QFF PRESSURE IN HPA 1009.1 1001.2 997.2 1006.7 1007.5 1004.3 1002.6 1002.8 1006.5 1007.9 1015.7 1005.4 997.2 DAY 5 18 28 27 9 29 22 22 12 10 7 17 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1025.6 1021.1 1018.5 1019.3 1017.8 1015.9 1012.7 1016.0 1019.3 1022.4 1029.1 1021.9 1020.0 MAX. QFE PRESSURE IN HPA 1039.5 1035.9 1028.9 1030.7 1025.7 1024.3 1018.9 1024.1 1027.8 1029.3 1038.1 1031.5 1039.5 DAY 18 11 6 19 19 18 27 26 26 12 23 26 MIN. QFE PRESSURE IN HPA 1012.0 1005.7 1001.3 1008.9 1010.2 1008.3 1005.6 1007.5 1009.9 1010.5 1019.1 1008.1 1001.3 DAY 4 18 28 29 11 14 22 21 12 10 7 20 MEAN QNH PRESSURE IN HPA 1022.7 1018.3 1015.7 1016.5 1015.0 1013.0 1009.9 1013.2 1016.5 1019.6 1026.2 1019.0 1017.1 MAX. QNH PRESSURE IN HPA 1036.6 1033.0 1026.0 1027.8 1022.9 1021.5 1016.1 1021.3 1024.9 1026.4 1035.2 1028.6 1036.6 DAY 18 11 6 19 19 18 27 26 26 12 23 26 MIN. QNH PRESSURE IN HPA 1009.2 1002.9 998.5 1006.1 1007.4 1005.5 1002.8 1004.7 1007.1 1007.7 1016.3 1005.3 998.5 DAY 4 18 28 29 11 14 22 21 12 10 7 20 MEAN QFF PRESSURE IN HPA 1022.9 1018.5 1015.9 1016.8 1015.3 1013.4 1010.3 1013.6 1016.9 1019.9 1026.5 1019.3 1017.4 MAX. QFF PRESSURE IN HPA 1036.9 1033.3 1026.3 1028.1 1023.2 1021.8 1016.5 1021.6 1025.3 1026.7 1035.5 1028.9 1036.9 DAY 18 11 6 19 19 18 27 26 26 12 23 26 MIN. QFF PRESSURE IN HPA 1009.4 1003.2 998.8 1006.4 1007.7 1005.9 1003.2 1005.1 1007.5 1008.1 1016.6 1005.6 998.8 DAY 4 18 28 29 11 14 22 21 12 10 7 20 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1026.4 1021.7 1019.5 1019.9 1018.3 1016.2 1013.0 1016.3 1019.8 1023.0 1029.8 1022.6 1020.5 MAX. QFE PRESSURE IN HPA 1041.6 1037.0 1029.5 1032.4 1025.7 1024.3 1019.0 1024.8 1029.0 1029.6 1039.5 1033.4 1041.6 DAY 18 11 6 19 19 18 6 26 25 28 23 3 MIN. QFE PRESSURE IN HPA 1011.3 1006.3 1001.0 1010.2 1010.2 1008.0 1006.4 1007.0 1009.9 1009.4 1020.9 1009.0 1001.0 DAY 4 18 28 29 9 7 4 21 11 10 7 20 MEAN QNH PRESSURE IN HPA 1023.6 1018.9 1016.7 1017.1 1015.5 1013.4 1010.2 1013.5 1017.0 1020.2 1026.9 1019.8 1017.7 MAX. QNH PRESSURE IN HPA 1038.7 1034.1 1026.6 1029.5 1022.9 1021.5 1016.2 1022.0 1026.1 1026.7 1036.6 1030.5 1038.7 DAY 18 11 6 19 19 18 6 26 25 28 23 3 MIN. QNH PRESSURE IN HPA 1008.5 1003.5 998.2 1007.4 1007.4 1005.2 1003.6 1004.2 1007.1 1006.6 1018.1 1006.2 998.2 DAY 4 18 28 29 9 7 4 21 11 10 7 20 MEAN QFF PRESSURE IN HPA 1023.8 1019.1 1017.0 1017.4 1015.8 1013.9 1010.6 1013.9 1017.4 1020.5 1027.2 1020.0 1018.0 MAX. QFF PRESSURE IN HPA 1039.0 1034.4 1026.9 1029.8 1023.2 1021.8 1016.6 1022.3 1026.5 1027.1 1036.9 1030.8 1039.0 DAY 18 11 6 19 19 18 27 26 25 28 23 3 MIN. QFF PRESSURE IN HPA 1008.7 1003.8 998.5 1007.7 1007.7 1005.6 1004.0 1004.6 1007.5 1007.0 1018.4 1006.5 998.5 DAY 4 18 28 29 9 7 4 21 11 10 7 20 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1025.2 1020.9 1019.2 1019.7 1018.0 1015.9 1012.8 1015.7 1019.3 1022.3 1029.0 1021.8 1020.0 MAX. QFE PRESSURE IN HPA 1040.1 1035.0 1029.9 1031.9 1027.3 1024.3 1019.2 1024.5 1029.0 1029.0 1038.5 1033.9 1040.1 DAY 18 11 5 19 18 18 6 26 25 27 23 3 MIN. QFE PRESSURE IN HPA 1010.7 1006.8 1001.0 1012.0 1009.6 1006.4 1006.4 1006.1 1008.9 1009.4 1020.5 1008.8 1001.0 DAY 4 20 28 29 9 7 4 21 11 10 7 19 MEAN QNH PRESSURE IN HPA 1022.4 1018.1 1016.4 1016.9 1015.2 1013.1 1010.0 1012.9 1016.5 1019.5 1026.2 1019.0 1017.2 MAX. QNH PRESSURE IN HPA 1037.2 1032.1 1027.0 1029.0 1024.5 1021.5 1016.4 1021.7 1026.1 1026.1 1035.6 1031.0 1037.2 DAY 18 11 5 19 18 18 6 26 25 27 23 3 MIN. QNH PRESSURE IN HPA 1007.9 1004.0 998.2 1009.2 1006.8 1003.6 1003.6 1003.3 1006.1 1006.6 1017.7 1006.0 998.2 DAY 4 20 28 29 9 7 4 21 11 10 7 19 MEAN QFF PRESSURE IN HPA 1022.6 1018.4 1016.7 1017.2 1015.6 1013.5 1010.4 1013.3 1016.9 1019.8 1026.4 1019.2 1017.5 MAX. QFF PRESSURE IN HPA 1037.5 1032.4 1027.3 1029.3 1024.8 1021.8 1016.8 1022.0 1026.5 1026.5 1035.9 1031.3 1037.5 DAY 18 11 5 19 18 18 6 26 25 27 23 3 MIN. QFF PRESSURE IN HPA 1008.2 1004.3 998.5 1009.5 1007.2 1004.0 1004.0 1003.7 1006.5 1007.0 1018.0 1006.3 998.5 DAY 4 20 28 29 9 7 4 21 11 10 7 19 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1024.9 1020.4 1018.7 1019.2 1017.4 1015.5 1012.2 1014.9 1018.6 1022.0 1028.5 1021.4 1019.5 MAX. QFE PRESSURE IN HPA 1039.1 1033.0 1029.3 1030.1 1026.5 1023.9 1018.8 1023.8 1029.0 1030.6 1038.3 1034.7 1039.1 DAY 18 11 5 19 18 18 6 26 25 11 23 3 MIN. QFE PRESSURE IN HPA 1010.4 1004.8 1002.7 1012.0 1006.8 1005.9 1006.1 1004.7 1007.3 1011.4 1019.1 1006.4 1002.7 DAY 4 20 28 29 9 7 4 21 11 9 7 19 MEAN QNH PRESSURE IN HPA 1022.1 1017.5 1015.8 1016.3 1014.6 1012.7 1009.4 1012.1 1015.8 1019.2 1025.7 1018.6 1016.6 MAX. QNH PRESSURE IN HPA 1036.2 1030.1 1026.4 1027.2 1023.7 1021.1 1016.0 1021.0 1026.1 1027.7 1035.4 1031.8 1036.2 DAY 18 11 5 19 18 18 6 26 25 11 23 3 MIN. QNH PRESSURE IN HPA 1007.6 1002.0 999.9 1009.2 1004.0 1003.1 1003.3 1001.9 1004.5 1008.6 1016.3 1003.6 999.9 DAY 4 20 28 29 9 7 4 21 11 9 7 19 MEAN QFF PRESSURE IN HPA 1022.3 1017.8 1016.1 1016.6 1015.0 1013.0 1009.8 1012.5 1016.2 1019.5 1025.9 1018.8 1017.0 MAX. QFF PRESSURE IN HPA 1036.5 1030.4 1026.7 1027.5 1024.0 1021.4 1016.4 1021.3 1026.5 1028.0 1035.7 1032.1 1036.5 DAY 18 11 5 19 18 18 6 26 25 11 23 3 MIN. QFF PRESSURE IN HPA 1007.9 1002.3 1000.2 1009.5 1004.4 1003.5 1003.7 1002.3 1004.9 1009.0 1016.6 1003.9 1000.2 DAY 4 20 28 29 9 7 4 21 11 9 7 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1962 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1025.6 1020.6 1018.8 1019.2 1017.2 1015.0 1011.7 1014.6 1018.6 1022.1 1028.8 1022.0 1019.5 MAX. QFE PRESSURE IN HPA 1039.3 1032.4 1029.7 1029.4 1026.0 1024.2 1017.7 1023.3 1029.0 1031.2 1037.8 1037.7 1039.3 DAY 18 11 5 23 18 17 6 9 25 11 23 3 MIN. QFE PRESSURE IN HPA 1010.7 1001.6 998.6 1012.0 1008.5 1003.7 1005.0 1003.6 1006.1 1009.4 1019.5 1005.5 998.6 DAY 4 20 27 28 9 7 21 21 11 9 7 19 MEAN QNH PRESSURE IN HPA 1022.8 1017.7 1016.0 1016.3 1014.4 1012.2 1008.9 1011.7 1015.8 1019.2 1026.0 1019.1 1016.7 MAX. QNH PRESSURE IN HPA 1036.4 1029.5 1026.8 1026.5 1023.2 1021.4 1014.9 1020.5 1026.1 1028.3 1034.9 1034.8 1036.4 DAY 18 11 5 23 18 17 6 9 25 11 23 3 MIN. QNH PRESSURE IN HPA 1007.9 998.8 995.8 1009.2 1005.7 1000.9 1002.2 1000.8 1003.3 1006.6 1016.7 1002.7 995.8 DAY 4 20 27 28 9 7 21 21 11 9 7 19 MEAN QFF PRESSURE IN HPA 1023.0 1018.0 1016.3 1016.6 1014.7 1012.5 1009.3 1012.1 1016.2 1019.6 1026.2 1019.4 1017.0 MAX. QFF PRESSURE IN HPA 1036.7 1029.8 1027.1 1026.8 1023.5 1021.7 1015.3 1020.9 1026.5 1028.6 1035.2 1035.1 1036.7 DAY 18 11 5 23 18 17 6 9 25 11 23 3 MIN. QFF PRESSURE IN HPA 1008.1 999.1 996.1 1009.5 1006.0 1001.3 1002.6 1001.2 1003.7 1007.0 1017.0 1003.0 996.1 DAY 4 20 27 28 9 7 21 21 11 9 7 19 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1026.0 1020.4 1018.8 1019.9 1017.6 1015.8 1012.0 1015.2 1019.1 1022.4 1029.2 1022.2 1019.9 MAX. QFE PRESSURE IN HPA 1039.8 1032.6 1030.2 1030.1 1026.7 1024.2 1018.7 1023.9 1029.4 1031.2 1037.5 1037.7 1039.8 DAY 18 10 5 23 18 17 6 25 25 11 23 3 MIN. QFE PRESSURE IN HPA 1010.3 998.4 997.2 1011.7 1009.4 1008.4 1005.1 1003.9 1006.8 1010.5 1019.3 1005.5 997.2 DAY 4 20 27 28 9 8 21 21 11 9 6 19 MEAN QNH PRESSURE IN HPA 1023.1 1017.5 1016.0 1017.0 1014.7 1013.0 1009.2 1012.4 1016.3 1019.5 1026.4 1019.3 1017.0 MAX. QNH PRESSURE IN HPA 1036.9 1029.7 1027.3 1027.2 1023.9 1021.4 1015.9 1021.1 1026.5 1028.3 1034.6 1034.8 1036.9 DAY 18 10 5 23 18 17 6 25 25 11 23 3 MIN. QNH PRESSURE IN HPA 1007.5 995.6 994.4 1008.9 1006.6 1005.6 1002.3 1001.1 1004.0 1007.7 1016.5 1002.7 994.4 DAY 4 20 27 28 9 8 21 21 11 9 6 19 MEAN QFF PRESSURE IN HPA 1023.3 1017.8 1016.3 1017.3 1015.1 1013.4 1009.6 1012.8 1016.7 1019.9 1026.7 1019.6 1017.4 MAX. QFF PRESSURE IN HPA 1037.1 1030.0 1027.6 1027.5 1024.2 1021.7 1016.3 1021.4 1026.9 1028.6 1034.9 1035.1 1037.1 DAY 18 10 5 23 18 17 6 25 25 11 23 3 MIN. QFF PRESSURE IN HPA 1007.7 995.9 994.7 1009.2 1006.9 1006.0 1002.7 1001.5 1004.4 1008.1 1016.8 1003.0 994.7 DAY 4 20 27 28 9 28 21 21 11 9 6 19 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1025.5 1020.2 1018.4 1019.4 1017.4 1015.4 1011.9 1015.2 1018.9 1022.2 1029.0 1021.8 1019.6 MAX. QFE PRESSURE IN HPA 1038.3 1033.5 1029.6 1030.1 1027.1 1024.5 1018.2 1024.2 1028.1 1030.6 1037.1 1035.5 1038.3 DAY 18 10 5 23 18 17 6 25 25 11 23 3 MIN. QFE PRESSURE IN HPA 1010.7 998.5 998.3 1010.3 1010.6 1006.2 1004.8 1004.5 1007.3 1011.0 1018.7 1006.3 998.3 DAY 4 20 27 28 8 7 21 21 11 9 6 19 MEAN QNH PRESSURE IN HPA 1022.7 1017.3 1015.6 1016.6 1014.5 1012.6 1009.1 1012.4 1016.1 1019.4 1026.1 1018.9 1016.8 MAX. QNH PRESSURE IN HPA 1035.4 1030.6 1026.7 1027.2 1024.3 1021.7 1015.4 1021.4 1025.2 1027.7 1034.2 1032.6 1035.4 DAY 18 10 5 23 18 17 6 25 25 11 23 3 MIN. QNH PRESSURE IN HPA 1007.9 995.7 995.5 1007.5 1007.8 1003.4 1002.0 1001.7 1004.5 1008.2 1015.9 1003.5 995.5 DAY 4 20 27 28 8 7 21 21 11 9 6 19 MEAN QFF PRESSURE IN HPA 1022.9 1017.6 1015.8 1016.9 1014.9 1013.0 1009.6 1012.8 1016.5 1019.7 1026.4 1019.2 1017.1 MAX. QFF PRESSURE IN HPA 1035.6 1030.9 1027.0 1027.5 1024.6 1022.0 1015.8 1021.8 1025.6 1028.0 1034.5 1032.9 1035.6 DAY 18 10 5 23 18 17 6 25 25 11 23 3 MIN. QFF PRESSURE IN HPA 1008.2 996.0 995.8 1007.8 1008.1 1003.8 1002.4 1002.1 1004.9 1008.6 1016.2 1003.8 995.8 DAY 4 20 27 28 8 7 21 21 11 9 6 19 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 9.5 9.9 10.1 15.2 19.0 23.4 26.3 25.8 23.6 19.8 11.8 7.0 16.8 MINIMUN AIR TEMPERATURE (C) 6.1 7.2 6.5 12.2 15.8 19.9 23.0 22.4 20.1 16.5 7.9 3.3 13.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 11 28 28 11 1 0 0 79 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 1 0 0 0 0 0 0 0 0 5 6 TEMPERATURE RECORDS LOWEST(C) 1.0 1.0 0.0 9.0 12.0 17.0 17.0 20.0 15.0 11.0 2.0 -3.0 -3.0 DAY 1 10 8 2 14 13 1 4 10 19 27 26 MAXIMUM AIR TEMPERATURE (C) 14.3 13.6 14.3 18.3 22.8 27.3 30.4 29.8 27.8 23.8 17.4 12.4 21.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 4 22 22 3 0 0 0 51 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 24.0 23.0 27.0 27.0 28.0 31.0 32.0 32.0 31.0 28.0 22.0 19.0 32.0 DAY 15 23 5 30 27 27 1 24 3 16 1 20 DIF. BETWEEN (MAX.-MIN.) (C) 8.2 6.4 7.8 6.1 7.0 7.4 7.4 7.4 7.7 7.3 9.5 9.1 7.6 MEAN DAILY TEMP. (MDT) (C) 10.2 10.4 10.4 15.2 19.3 23.6 26.7 26.1 23.9 20.1 12.6 7.8 17.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.0 9.5 78.0 177.0 159.0 88.5 15.0 0.0 0.0 528.0 HEATING DEG. DAYS(BASE 18 0C) 241.0 213.0 236.0 88.5 9.0 0.0 0.0 0.0 0.0 6.5 161.0 315.0 1270.0 DEWPOINT (MEAN C) 7.3 7.6 7.3 12.6 15.8 19.9 23.3 22.7 20.6 17.5 9.3 4.9 14.1 MIXING RATIO (G/KG) 6.41 6.52 6.48 9.14 11.35 14.59 18.22 17.46 15.34 12.52 7.38 5.52 10.91 VAPOUR PRESSURE (HPA) 10.41 10.60 10.50 14.70 18.16 23.26 28.79 27.67 24.48 20.16 12.00 8.99 17.48 SATURATION DEF. (HPA) 1.77 1.80 2.26 2.70 4.15 5.79 5.79 5.91 5.17 3.28 2.34 1.44 3.53 RELATIVE HUMIDITY (MEAN %) 87 87 85 86 83 82 85 84 84 88 86 88 85 RELATIVE HUMIDITY (MAX. %) 96 96 96 96 95 93 96 96 97 97 97 97 96 RELATIVE HUMIDITY (MIN. %) 73 71 71 74 68 67 70 70 69 73 67 70 70 RELATIVE HUMIDITY (MEAN% 03UTC) 92 94 96 95 93 91 94 95 96 96 95 93 94 RELATIVE HUMIDITY (MEAN% 09UTC) 76 79 77 77 73 74 73 73 72 76 70 74 75 RELATIVE HUMIDITY (MEAN% 15UTC) 88 85 80 83 81 77 81 78 78 86 87 89 83 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 50.3 56.9 88.2 9.5 36.3 35.2 13.4 72.6 16.8 209.6 99.6 212.9 901.3 DAYS WITH PRECIPITATION >=10 2 1 5 0 2 2 1 2 0 5 5 7 32 DAYS WITH PRECIPITATION >= 5 2 5 6 0 2 2 1 3 1 10 7 10 49 DAYS WITH PRECIPITATION >= 1 7 8 11 4 6 4 2 5 5 14 8 10 84 DAYS WITH PRECIPITATION 9 11 14 9 12 5 6 9 7 14 10 11 117 GREATEST DAILY PRECIPITATION 22.0 18.0 19.0 4.4 14.0 19.0 10.0 43.0 7.0 70.6 22.0 86.0 86.0 DAY 5 8 6 21 18 12 9 28 23 17 25 11 DAY WITH THUNDER STORM 0 1 0 0 0 0 2 3 0 5 0 0 11 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 1 1 DAYS WITH DUST 1 1 0 0 0 0 0 0 1 0 0 0 3 WIND DIRECTION (PREVAILING) 90 90 90 45 270 270 270 270 270 90 90 90 270 PREVAILING WIND SPEED(KNOTS) 4.3 4.4 6.0 4.7 7.2 4.3 4.5 4.7 5.8 4.0 4.1 3.8 5.2 PREVAILING WIND PERCENT 14.9 11.6 16.9 13.3 14.9 12.1 20.6 11.7 7.9 8.1 16.3 13.7 8.8 CALMS PERCENT OF WIND 72.6 67.9 47.5 51.7 49.2 57.9 57.7 58.5 67.1 64.1 65.4 71.0 61.2 NO. OF WIND OBSERVATION 248 224 183 203 248 240 248 248 240 248 240 248 2818 VECTOR WIND DIRECTION (MEAN) 49 57 44 3 316 349 295 302 322 14 60 86 357 VECTOR WIND MAGNITUDE(KNOTS) 0.4 0.5 1.0 1.2 1.1 0.7 1.1 0.9 0.6 0.6 0.7 0.5 0.5 WIND STEADINESES (MEAN %) 33.3 38.5 37.0 54.5 40.7 36.8 61.1 56.3 42.9 37.5 50.0 45.5 29.4 WIND SPEED (MEAN KNOTS) 1.2 1.3 2.7 2.2 2.7 1.9 1.8 1.6 1.4 1.6 1.4 1.1 1.7 FASTEST WIND DIRECTION 270 70 70 70 270 270 250 290 270 270 360 50 270 FASTEST WIND SPEED (KNOTS) 14 12 14 12 16 14 12 10 12 15 14 12 16 DAY 4 26 4 1 12 28 4 8 6 7 2 24 DAYS WITH SKY CLEAR (0-2)/8 10 6 9 4 10 14 17 10 13 9 11 12 125 DAYS WITH P.CLOUDY (3-6)/8 8 6 6 10 11 7 3 11 12 14 10 9 107 DAYS WITH CLOUDY (7-8)/8 13 16 16 16 10 9 11 10 5 8 9 10 133 DAYS WITH VISIBILITY =< 2 KM 6 1 5 4 0 0 2 0 1 4 2 8 33 DURATION OF SUNSHINE HOURS 130.0 88.2 154.8 128.0 221.4 225.4 220.2 189.1 199.7 177.1 165.7 152.4 2052.0 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1021.5 1022.1 1019.4 1015.5 1014.2 1014.9 1011.8 1013.7 1017.9 1021.9 1024.1 1024.1 1018.4 MAX. QFE PRESSURE IN HPA 1034.0 1036.8 1032.3 1026.9 1023.8 1024.8 1017.0 1019.2 1032.8 1033.9 1037.8 1045.1 1045.1 DAY-HOUR 5- 6 7- 6 7- 6 2- 6 13-18 12-18 29- 6 4-21 24- 6 18- 6 26-15 26- 6 MIN. QFE PRESSURE IN HPA 1012.4 1006.3 999.8 1006.2 1005.9 1006.1 1005.9 1006.6 1008.8 1011.8 1011.6 1008.1 999.8 DAY-HOUR 26-12 23- 0 5- 9 28-18 27-21 14-21 23-18 12-15 3- 0 21- 0 16- 0 10-12 MEAN QNH PRESSURE IN HPA 1018.7 1019.2 1016.6 1012.7 1011.4 1012.1 1008.9 1010.9 1015.1 1019.0 1021.2 1021.2 1015.6 MAX. QNH PRESSURE IN HPA 1031.1 1033.9 1029.4 1024.1 1021.0 1022.0 1014.2 1016.4 1029.9 1031.0 1034.9 1042.2 1042.2 DAY-HOUR 5- 6 7- 6 7- 6 2- 6 13-18 12-18 29- 6 4-21 24- 6 18- 6 26-15 26- 6 MIN. QNH PRESSURE IN HPA 1009.6 1003.5 997.0 1003.4 1003.1 1003.3 1003.1 1003.8 1006.0 1009.0 1008.8 1005.3 997.0 DAY-HOUR 26-12 23- 0 5- 9 28-18 27-21 14-21 23-18 12-15 3- 0 21- 0 16- 0 10-12 MEAN QFF PRESSURE IN HPA 1018.9 1019.5 1017.3 1012.2 1011.7 1012.5 1009.3 1011.3 1015.5 1019.4 1021.5 1021.4 1015.9 MAX. QFF PRESSURE IN HPA 1031.4 1034.2 1029.6 1023.9 1021.3 1022.3 1014.6 1016.8 1030.3 1031.4 1035.2 1042.3 1042.3 DAY-HOUR 5- 6 7- 6 7- 9 2-15 13-18 12-18 29- 6 4-21 24- 6 18- 6 26-15 26- 6 MIN. QFF PRESSURE IN HPA 1009.9 1003.8 997.3 1003.7 1003.5 1003.7 1003.5 1004.2 1006.4 1009.3 1009.1 1005.6 997.3 DAY-HOUR 26-12 23- 0 5- 9 28-18 27-21 14-21 23-18 12-15 3-15 21- 0 16- 0 10-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1021.6 1021.5 ****** 1013.8 1013.8 1014.6 1011.5 1013.6 1017.7 1021.6 1023.5 1024.2 ****** MAX. QFE PRESSURE IN HPA 1031.4 1036.4 ****** 1020.5 1022.6 1022.4 1016.1 1018.8 1031.8 1033.7 1033.5 1044.7 ****** DAY 5 7 ** 22 14 13 30 5 24 18 29 26 MIN. QFE PRESSURE IN HPA 1014.0 1006.3 ****** 1006.8 1007.1 1006.6 1006.1 1007.2 1008.8 1011.8 1011.6 1009.5 ****** DAY 2 23 ** 29 28 15 3 24 3 21 16 10 MEAN QNH PRESSURE IN HPA 1018.7 1018.7 ****** 1010.9 1011.0 1011.7 1008.7 1010.8 1014.8 1018.7 1020.7 1021.4 ****** MAX. QNH PRESSURE IN HPA 1028.5 1033.5 ****** 1017.7 1019.8 1019.6 1013.3 1016.0 1028.9 1030.8 1030.6 1041.8 ****** DAY 5 7 ** 22 14 13 30 5 24 18 29 26 MIN. QNH PRESSURE IN HPA 1011.2 1003.5 ****** 1004.0 1004.3 1003.8 1003.3 1004.4 1006.0 1009.0 1008.8 1006.7 ****** DAY 2 23 ** 29 28 15 3 24 3 21 16 10 MEAN QFF PRESSURE IN HPA 1019.0 1018.9 ****** 1011.3 1011.4 1012.1 1009.1 1011.2 1015.2 1019.1 1020.9 1021.6 ****** MAX. QFF PRESSURE IN HPA 1028.8 1033.8 ****** 1018.0 1020.1 1019.9 1013.7 1016.4 1029.3 1031.1 1030.9 1041.9 ****** DAY 5 7 ** 22 14 13 30 5 24 18 29 26 MIN. QFF PRESSURE IN HPA 1011.4 1003.8 ****** 1004.3 1004.7 1004.2 1003.7 1004.8 1006.4 1009.3 1009.1 1007.0 ****** DAY 2 23 ** 29 28 15 3 24 3 21 16 10 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1021.7 1021.8 1019.5 1016.2 1014.2 1015.3 1012.0 1014.1 1018.2 1021.9 1024.0 1024.1 1018.6 MAX. QFE PRESSURE IN HPA 1032.1 1036.6 1031.0 1025.3 1022.8 1022.6 1016.8 1018.9 1031.8 1033.7 1033.5 1044.7 1044.7 DAY 5 7 7 2 14 13 29 4 24 18 29 26 MIN. QFE PRESSURE IN HPA 1014.4 1006.6 1005.9 1006.3 1007.3 1009.0 1006.8 1007.7 1009.2 1013.1 1013.3 1009.5 1005.9 DAY 2 23 5 29 29 19 4 12 3 21 16 10 MEAN QNH PRESSURE IN HPA 1018.9 1018.9 1016.7 1013.3 1011.4 1012.5 1009.2 1011.3 1015.4 1019.1 1021.2 1021.3 1015.8 MAX. QNH PRESSURE IN HPA 1029.2 1033.7 1028.1 1022.5 1020.0 1019.8 1014.0 1016.1 1028.9 1030.8 1030.6 1041.8 1041.8 DAY 5 7 7 2 14 13 29 4 24 18 29 26 MIN. QNH PRESSURE IN HPA 1011.6 1003.8 1003.1 1003.5 1004.5 1006.2 1004.0 1004.9 1006.4 1010.3 1010.5 1006.7 1003.1 DAY 2 23 5 29 29 19 4 12 3 21 16 10 MEAN QFF PRESSURE IN HPA 1019.1 1019.2 1016.9 1013.6 1011.8 1012.9 1009.6 1011.7 1015.8 1019.5 1021.5 1021.5 1016.1 MAX. QFF PRESSURE IN HPA 1029.5 1034.0 1028.3 1022.7 1020.3 1020.1 1014.4 1016.4 1029.3 1031.2 1030.9 1041.9 1041.9 DAY 5 7 7 2 14 13 29 4 24 18 29 26 MIN. QFF PRESSURE IN HPA 1011.8 1004.1 1003.3 1003.8 1004.9 1006.6 1004.4 1005.3 1006.8 1010.6 1010.8 1006.9 1003.3 DAY 2 23 5 29 29 19 4 12 3 21 16 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.4 1022.6 1019.8 1016.6 1014.5 1015.5 1012.2 1014.2 1018.8 1022.7 1025.0 1024.6 1019.1 MAX. QFE PRESSURE IN HPA 1034.0 1036.8 1032.3 1026.9 1022.9 1022.8 1017.0 1018.9 1032.8 1033.9 1034.8 1045.1 1045.1 DAY 5 7 7 2 13 13 29 4 24 18 26 26 MIN. QFE PRESSURE IN HPA 1014.7 1007.5 1002.9 1006.3 1007.3 1007.5 1007.0 1007.7 1009.7 1015.6 1016.3 1009.2 1002.9 DAY 26 23 5 29 29 19 4 12 3 21 16 10 MEAN QNH PRESSURE IN HPA 1019.6 1019.8 1016.9 1013.8 1011.7 1012.7 1009.4 1011.4 1015.9 1019.9 1022.1 1021.8 1016.2 MAX. QNH PRESSURE IN HPA 1031.1 1033.9 1029.4 1024.1 1020.1 1020.0 1014.2 1016.1 1029.9 1031.0 1031.9 1042.2 1042.2 DAY 5 7 7 2 13 13 29 4 24 18 26 26 MIN. QNH PRESSURE IN HPA 1011.9 1004.7 1000.1 1003.5 1004.5 1004.7 1004.2 1004.9 1006.9 1012.8 1013.5 1006.4 1000.1 DAY 26 23 5 29 29 19 4 12 3 21 16 10 MEAN QFF PRESSURE IN HPA 1019.8 1020.0 ****** 1011.9 1012.1 1013.0 1009.8 1011.8 1016.3 1020.2 1022.4 1022.0 ****** MAX. QFF PRESSURE IN HPA 1031.4 1034.2 ****** 1018.5 1020.4 1020.3 1014.6 1016.5 1030.3 1031.4 1032.2 1042.3 ****** DAY 5 7 ** 22 13 13 29 4 24 18 26 26 MIN. QFF PRESSURE IN HPA 1012.1 1005.0 ****** 1003.9 1004.9 1005.1 1004.6 1005.3 1007.3 1013.1 1013.8 1006.6 ****** DAY 26 23 ** 29 29 19 4 12 3 21 16 10 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1021.4 1022.3 1019.1 1016.1 1014.3 1015.2 1011.9 1013.8 1018.2 1022.1 1024.4 1023.7 1018.5 MAX. QFE PRESSURE IN HPA 1032.6 1036.5 1032.3 1026.5 1023.1 1022.1 1016.4 1018.8 1031.7 1032.5 1037.1 1044.2 1044.2 DAY 5 7 7 2 13 12 29 5 24 18 26 26 MIN. QFE PRESSURE IN HPA 1012.9 1007.1 999.8 1006.7 1006.0 1006.5 1006.6 1007.2 1009.2 1016.6 1016.8 1008.4 999.8 DAY 26 23 5 29 29 19 4 12 3 31 24 10 MEAN QNH PRESSURE IN HPA 1018.5 1019.4 1016.3 1013.3 1011.5 1012.4 1009.1 1011.0 1015.4 1019.2 1021.6 1020.9 1015.7 MAX. QNH PRESSURE IN HPA 1029.7 1033.6 1029.4 1023.7 1020.3 1019.3 1013.6 1016.0 1028.8 1029.6 1034.2 1041.3 1041.3 DAY 5 7 7 2 13 12 29 5 24 18 26 26 MIN. QNH PRESSURE IN HPA 1010.1 1004.3 997.0 1003.9 1003.2 1003.7 1003.8 1004.4 1006.4 1013.8 1014.0 1005.6 997.0 DAY 26 23 5 29 29 19 4 12 3 31 24 10 MEAN QFF PRESSURE IN HPA 1018.8 1019.7 ****** 1011.5 1011.9 1012.8 1009.5 1011.4 1015.8 1019.6 1021.8 1021.1 ****** MAX. QFF PRESSURE IN HPA 1030.0 1033.9 ****** 1017.8 1020.6 1019.6 1014.0 1016.4 1029.2 1030.0 1034.4 1041.5 ****** DAY 5 7 ** 22 13 12 29 5 24 18 26 26 MIN. QFF PRESSURE IN HPA 1010.3 1004.6 ****** 1004.2 1003.6 1004.1 1004.2 1004.8 1006.8 1014.1 1014.3 1005.9 ****** DAY 26 23 ** 29 29 19 4 12 3 31 24 10 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1020.7 1021.7 1018.7 1015.7 1014.3 1014.8 1011.6 1013.4 1017.5 1021.5 1023.8 1023.2 1018.1 MAX. QFE PRESSURE IN HPA 1032.3 1035.6 1032.1 1026.5 1023.1 1023.5 1016.0 1018.6 1030.1 1030.6 1037.1 1044.0 1044.0 DAY 5 7 7 2 13 12 29 5 24 18 26 26 MIN. QFE PRESSURE IN HPA 1012.4 1007.4 1005.5 1007.7 1008.2 1006.4 1006.2 1006.8 1008.8 1016.5 1015.9 1008.1 1005.5 DAY 26 23 18 29 29 19 4 12 3 20 24 10 MEAN QNH PRESSURE IN HPA 1017.9 1018.8 1015.8 1012.9 1011.5 1012.0 1008.7 1010.5 1014.6 1018.7 1021.0 1020.4 1015.2 MAX. QNH PRESSURE IN HPA 1029.4 1032.7 1029.2 1023.7 1020.3 1020.7 1013.2 1015.8 1027.2 1027.7 1034.2 1041.1 1041.1 DAY 5 7 7 2 13 12 29 5 24 18 26 26 MIN. QNH PRESSURE IN HPA 1009.6 1004.6 1002.7 1004.9 1005.4 1003.6 1003.4 1004.0 1006.0 1013.7 1013.1 1005.3 1002.7 DAY 26 23 18 29 29 19 4 12 3 20 24 10 MEAN QFF PRESSURE IN HPA 1018.2 1019.1 ****** 1011.3 1011.8 1012.4 1009.2 1011.0 1015.0 1019.0 1021.3 1020.6 ****** MAX. QFF PRESSURE IN HPA 1029.7 1033.0 ****** 1017.8 1020.6 1021.0 1013.6 1016.2 1027.6 1028.1 1034.5 1041.3 ****** DAY 5 7 ** 22 13 12 29 5 24 18 26 26 MIN. QFF PRESSURE IN HPA 1009.9 1004.9 ****** 1005.3 1005.8 1004.0 1003.8 1004.4 1006.4 1014.0 1013.4 1005.6 ****** DAY 26 23 ** 29 29 19 4 12 3 20 24 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1963 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.3 1022.0 1018.6 1015.7 1014.0 1014.4 1011.4 1013.2 1017.5 1021.6 1024.1 1023.9 1018.1 MAX. QFE PRESSURE IN HPA 1032.3 1035.6 1031.7 1026.5 1023.1 1024.4 1016.0 1018.2 1029.9 1030.2 1037.8 1044.7 1044.7 DAY 5 7 7 2 13 12 29 5 24 18 26 25 MIN. QFE PRESSURE IN HPA 1013.0 1007.4 1006.0 1007.7 1008.1 1006.4 1006.0 1006.6 1008.8 1016.5 1015.4 1010.9 1006.0 DAY 26 23 30 28 28 19 23 12 3 20 15 10 MEAN QNH PRESSURE IN HPA 1018.4 1019.2 1015.8 1012.9 1011.2 1011.6 1008.6 1010.4 1014.6 1018.8 1021.2 1021.1 1015.3 MAX. QNH PRESSURE IN HPA 1029.4 1032.7 1028.8 1023.7 1020.3 1021.6 1013.2 1015.4 1027.0 1027.3 1034.9 1041.8 1041.8 DAY 5 7 7 2 13 12 29 5 24 18 26 25 MIN. QNH PRESSURE IN HPA 1010.2 1004.6 1003.2 1004.9 1005.3 1003.6 1003.2 1003.8 1006.0 1013.7 1012.6 1008.1 1003.2 DAY 26 23 30 28 28 19 23 12 3 20 15 10 MEAN QFF PRESSURE IN HPA 1018.7 1019.4 1016.0 1013.2 1011.6 1012.0 1009.0 1010.8 1015.0 1019.1 1021.5 1021.3 1015.6 MAX. QFF PRESSURE IN HPA 1029.7 1033.0 1029.0 1023.9 1020.6 1021.9 1013.6 1015.8 1027.4 1027.6 1035.2 1042.0 1042.0 DAY 5 7 7 2 13 12 29 5 24 18 26 25 MIN. QFF PRESSURE IN HPA 1010.4 1004.9 1003.5 1005.2 1005.7 1004.0 1003.6 1004.2 1006.4 1014.0 1012.9 1008.4 1003.5 DAY 26 23 30 28 28 19 23 12 3 20 15 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1021.6 1022.6 ****** 1014.2 1014.6 1014.9 1011.8 1013.9 1018.0 1021.8 1024.2 1024.3 ****** MAX. QFE PRESSURE IN HPA 1031.6 1035.8 ****** 1021.5 1023.8 1024.8 1016.6 1018.9 1031.8 1030.3 1036.8 1044.7 ****** DAY 5 6 ** 21 13 12 28 4 23 17 26 25 MIN. QFE PRESSURE IN HPA 1013.5 1008.2 ****** 1006.2 1007.1 1006.4 1005.9 1007.3 1009.5 1013.6 1015.0 1010.4 ****** DAY 14 23 ** 28 27 19 23 12 3 20 15 9 MEAN QNH PRESSURE IN HPA 1018.7 1019.8 ****** 1011.4 1011.8 1012.0 1009.0 1011.0 1015.1 1019.0 1021.4 1021.4 ****** MAX. QNH PRESSURE IN HPA 1028.7 1032.9 ****** 1018.7 1021.0 1022.0 1013.8 1016.1 1028.9 1027.4 1033.9 1041.8 ****** DAY 5 6 ** 21 13 12 28 4 23 17 26 25 MIN. QNH PRESSURE IN HPA 1010.7 1005.4 ****** 1003.4 1004.3 1003.6 1003.1 1004.5 1006.7 1010.8 1012.2 1007.6 ****** DAY 14 23 ** 28 27 19 23 12 3 20 15 9 MEAN QFF PRESSURE IN HPA 1019.0 1020.0 ****** 1011.7 1012.1 1012.4 1009.4 1011.4 1015.5 1019.3 1021.7 1021.6 ****** MAX. QFF PRESSURE IN HPA 1029.0 1033.2 ****** 1019.0 1021.3 1022.3 1014.2 1016.5 1029.3 1027.8 1034.1 1042.0 ****** DAY 5 6 ** 21 13 12 28 4 23 17 26 25 MIN. QFF PRESSURE IN HPA 1010.9 1005.7 ****** 1003.7 1004.7 1004.0 1003.5 1004.9 1007.1 1011.1 1012.5 1007.8 ****** DAY 14 23 ** 28 27 19 23 12 3 20 15 9 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1021.4 1022.2 ****** 1013.8 1014.0 1014.7 1011.8 1013.7 1017.9 1021.8 1023.8 1024.5 ****** MAX. QFE PRESSURE IN HPA 1030.3 1036.4 ****** 1021.0 1023.1 1023.6 1016.2 1019.2 1031.8 1033.3 1035.9 1044.7 ****** DAY 4 6 ** 21 13 12 28 4 23 17 26 25 MIN. QFE PRESSURE IN HPA 1013.7 1006.9 ****** 1006.9 1005.9 1006.1 1005.9 1007.3 1009.1 1012.1 1013.1 1009.5 ****** DAY 1 22 ** 28 27 14 23 12 2 20 15 9 MEAN QNH PRESSURE IN HPA 1018.6 1019.4 ****** 1011.0 1011.2 1011.9 1008.9 1010.9 1015.1 1018.9 1021.0 1021.7 ****** MAX. QNH PRESSURE IN HPA 1027.4 1033.5 ****** 1018.2 1020.3 1020.8 1013.4 1016.4 1028.9 1030.4 1033.0 1041.8 ****** DAY 4 6 ** 21 13 12 28 4 23 17 26 25 MIN. QNH PRESSURE IN HPA 1010.9 1004.1 ****** 1004.1 1003.1 1003.3 1003.1 1004.5 1006.3 1009.3 1010.3 1006.7 ****** DAY 1 22 ** 28 27 14 23 12 2 20 15 9 MEAN QFF PRESSURE IN HPA 1018.8 1019.7 ****** 1011.3 1011.5 1012.3 1009.4 1011.3 1015.5 1019.3 1021.3 1021.9 ****** MAX. QFF PRESSURE IN HPA 1027.7 1033.8 ****** 1018.5 1020.6 1021.1 1013.8 1016.8 1029.3 1030.8 1033.2 1042.0 ****** DAY 4 6 ** 21 13 12 28 4 23 17 26 25 MIN. QFF PRESSURE IN HPA 1011.1 1004.4 ****** 1004.4 1003.5 1003.7 1003.5 1004.9 1006.7 1009.6 1010.6 1007.0 ****** DAY 1 22 ** 28 27 14 23 12 2 20 15 9 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.2 7.6 9.8 12.2 19.1 25.2 26.0 25.0 22.8 16.9 13.1 7.2 15.7 MINIMUN AIR TEMPERATURE (C) -0.5 4.8 7.7 9.1 15.3 21.7 22.5 21.5 19.6 12.9 8.5 3.5 12.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 25 29 24 13 0 0 0 91 DAYS WITH MINIMUM TEMP. <=-4 3 0 0 0 0 0 0 0 0 0 0 0 3 DAYS WITH FREEZING MIN.<= 0 21 1 0 0 0 0 0 0 0 0 1 5 28 TEMPERATURE RECORDS LOWEST(C) -7.0 -1.0 3.0 5.0 9.0 18.0 20.0 18.0 17.0 9.0 0.0 -3.0 -7.0 DAY 20 1 2 5 3 24 1 29 17 8 30 28 MAXIMUM AIR TEMPERATURE (C) 8.4 11.0 12.8 15.7 23.5 29.0 30.0 29.0 26.5 21.7 19.1 12.3 19.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 11 19 14 0 0 0 0 44 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 17.0 17.0 23.0 25.0 27.0 32.0 33.0 31.0 29.0 26.0 26.0 18.0 33.0 DAY 16 2 26 29 11 11 3 1 2 1 19 5 DIF. BETWEEN (MAX.-MIN.) (C) 8.9 6.2 5.1 6.6 8.2 7.3 7.5 7.5 6.9 8.8 10.6 8.8 7.7 MEAN DAILY TEMP. (MDT) (C) 3.9 7.9 10.3 12.4 19.4 25.4 26.3 25.3 23.0 17.3 13.8 7.9 16.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 5.5 131.0 163.0 132.0 63.0 3.0 0.0 0.0 497.5 HEATING DEG. DAYS(BASE 18 0C) 436.5 294.0 240.0 169.5 17.5 0.0 0.0 0.0 0.0 39.5 127.0 313.5 1637.5 DEWPOINT (MEAN C) 0.5 5.6 7.8 9.4 15.2 20.3 20.7 20.8 19.4 13.6 10.4 5.5 12.4 MIXING RATIO (G/KG) 3.93 5.61 6.59 7.34 10.82 15.10 15.43 15.54 14.14 9.77 7.99 5.69 9.83 VAPOUR PRESSURE (HPA) 6.44 9.14 10.70 11.87 17.38 23.99 24.49 24.67 22.63 15.85 12.93 9.31 15.78 SATURATION DEF. (HPA) 1.47 1.41 1.60 2.62 5.24 8.36 9.48 7.42 5.38 3.92 2.63 1.22 4.23 RELATIVE HUMIDITY (MEAN %) 84 88 88 85 79 76 74 79 82 82 85 90 83 RELATIVE HUMIDITY (MAX. %) 96 97 96 95 94 91 89 93 94 95 97 97 95 RELATIVE HUMIDITY (MIN. %) 64 75 77 71 63 60 58 64 68 63 67 76 67 RELATIVE HUMIDITY (MEAN% 03UTC) 92 95 94 94 91 88 86 91 93 94 94 96 92 RELATIVE HUMIDITY (MEAN% 09UTC) 68 77 81 75 67 63 60 67 71 65 70 77 70 RELATIVE HUMIDITY (MEAN% 15UTC) 83 85 84 80 73 69 66 70 76 80 86 92 79 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 158.3 48.9 32.6 68.6 3.0 5.1 6.0 23.6 51.5 129.7 68.7 130.2 726.2 DAYS WITH PRECIPITATION >=10 6 2 1 3 0 0 0 0 3 5 2 4 26 DAYS WITH PRECIPITATION >= 5 9 2 3 5 0 0 0 1 3 5 5 6 39 DAYS WITH PRECIPITATION >= 1 11 4 7 9 1 2 2 9 7 6 6 10 74 DAYS WITH PRECIPITATION 12 6 13 13 2 4 5 12 10 9 7 11 104 GREATEST DAILY PRECIPITATION 52.0 25.0 11.0 17.0 3.0 2.6 3.0 5.0 17.0 36.0 37.0 38.0 52.0 DAY 1 26 28 14 1 22 10 6 15 6 10 18 DAY WITH THUNDER STORM 0 0 0 0 0 2 0 2 0 0 2 0 6 DAYS WITH SNOW OR SLEET 4 0 0 0 0 0 0 0 0 0 0 0 4 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 90 90 90 270 45 360 270 270 270 45 90 90 270 PREVAILING WIND SPEED(KNOTS) 3.8 3.8 4.4 5.7 5.1 5.0 5.3 3.8 4.7 4.2 3.4 3.5 5.2 PREVAILING WIND PERCENT 16.5 20.3 16.9 15.0 13.3 15.0 28.2 23.1 16.3 11.7 18.8 13.3 12.3 CALMS PERCENT OF WIND 56.9 48.3 45.6 40.4 43.5 42.5 33.5 36.4 41.3 48.4 51.3 60.5 45.7 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 247 240 248 240 248 2927 VECTOR WIND DIRECTION (MEAN) 97 53 18 331 345 347 282 286 294 18 81 94 336 VECTOR WIND MAGNITUDE(KNOTS) 0.3 0.9 0.9 0.8 1.5 1.3 1.7 1.2 1.1 0.5 0.3 0.3 0.6 WIND STEADINESES (MEAN %) 16.7 47.4 37.5 30.8 55.6 48.1 60.7 54.5 52.4 26.3 15.0 23.1 27.3 WIND SPEED (MEAN KNOTS) 1.8 1.9 2.4 2.6 2.7 2.7 2.8 2.2 2.1 1.9 2.0 1.3 2.2 FASTEST WIND DIRECTION 270 70 270 270 290 170 270 290 270 280 270 20 270 FASTEST WIND SPEED (KNOTS) 18 10 12 18 15 20 12 8 12 22 28 12 28 DAY 18 17 6 17 11 30 22 14 6 3 27 25 DAYS WITH SKY CLEAR (0-2)/8 16 5 3 11 16 13 12 9 7 18 14 13 137 DAYS WITH P.CLOUDY (3-6)/8 6 9 3 3 12 11 11 8 9 8 11 9 100 DAYS WITH CLOUDY (7-8)/8 9 15 25 16 3 6 8 14 14 5 5 9 129 DAYS WITH VISIBILITY =< 2 KM 6 4 2 2 1 1 0 1 3 4 5 4 33 DURATION OF SUNSHINE HOURS 165.7 110.2 66.0 135.4 281.5 236.6 198.4 165.1 128.9 211.5 181.0 154.7 2035.0 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1027.5 1022.4 1020.5 1018.2 1016.9 1012.8 1012.2 1012.1 1018.5 1025.7 1021.2 1028.6 1019.7 MAX. QFE PRESSURE IN HPA 1040.5 1034.5 1033.4 1027.8 1021.9 1019.1 1019.7 1019.3 1029.7 1035.9 1039.1 1041.4 1041.4 DAY-HOUR 30- 6 27- 9 8- 3 24- 6 1-18 1- 0 22-18 20-18 16- 6 29- 6 11- 6 26- 6 MIN. QFE PRESSURE IN HPA 1011.1 1011.1 1009.7 998.8 1001.9 1003.9 1005.3 1001.7 1010.7 1010.4 995.7 1011.8 995.7 DAY-HOUR 18-15 2- 3 3- 0 6- 9 11-15 15-15 4-18 13-15 10-21 5- 0 27- 9 23-12 MEAN QNH PRESSURE IN HPA 1024.6 1019.6 1017.6 1015.4 1014.0 1009.9 1009.3 1009.3 1015.7 1022.8 1018.4 1025.7 1016.9 MAX. QNH PRESSURE IN HPA 1037.6 1031.6 1030.5 1024.9 1019.1 1016.3 1016.9 1016.5 1026.8 1033.0 1036.2 1038.5 1038.5 DAY-HOUR 30- 6 27- 9 8- 3 24- 6 1-18 1- 0 22-18 20-18 16- 6 29- 6 11- 6 26- 6 MIN. QNH PRESSURE IN HPA 1008.3 1008.3 1006.9 996.0 999.1 1001.1 1002.5 998.9 1007.9 1007.6 992.9 1009.0 992.9 DAY-HOUR 18-15 2- 3 3- 0 6- 9 11-15 15-15 4-18 13-15 10-21 5- 0 27- 9 23-12 MEAN QFF PRESSURE IN HPA 1024.8 1019.8 1017.9 1015.6 1014.4 1010.3 1009.8 1009.7 1016.0 1023.1 1018.7 1025.9 1017.2 MAX. QFF PRESSURE IN HPA 1037.8 1031.8 1030.7 1025.2 1019.4 1016.7 1017.3 1016.9 1027.2 1033.3 1036.5 1038.7 1038.7 DAY-HOUR 30- 6 27- 9 8- 6 24- 6 23- 9 1- 6 22-21 20-21 16- 6 29- 6 11- 6 26- 6 MIN. QFF PRESSURE IN HPA 1008.5 1008.5 1007.1 996.3 999.5 1001.5 1002.9 999.3 1008.3 1007.9 993.2 1009.2 993.2 DAY-HOUR 18-15 2- 3 3- 0 6-15 11-15 15-15 4-18 13-15 11- 0 5- 0 27- 9 23-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1027.1 1022.4 1020.0 1018.0 1016.7 1012.7 1012.1 1012.1 1018.2 1024.9 1021.1 1028.6 1019.5 MAX. QFE PRESSURE IN HPA 1039.5 1032.3 1032.7 1027.2 1020.9 1019.1 1019.3 1019.0 1027.9 1035.2 1038.9 1040.0 1040.0 DAY 30 27 8 24 2 1 23 21 16 30 11 26 MIN. QFE PRESSURE IN HPA 1013.1 1011.8 1009.7 1003.8 1011.5 1005.5 1005.8 1004.3 1010.7 1010.4 1001.8 1013.8 1001.8 DAY 18 4 3 6 12 15 5 13 11 5 27 24 MEAN QNH PRESSURE IN HPA 1024.3 1019.6 1017.2 1015.2 1013.9 1009.9 1009.3 1009.3 1015.4 1022.0 1018.2 1025.7 1016.7 MAX. QNH PRESSURE IN HPA 1036.6 1029.4 1029.8 1024.4 1018.1 1016.3 1016.5 1016.2 1025.0 1032.3 1036.0 1037.1 1037.1 DAY 30 27 8 24 2 1 23 21 16 30 11 26 MIN. QNH PRESSURE IN HPA 1010.3 1009.0 1006.9 1001.0 1008.7 1002.7 1003.0 1001.5 1007.9 1007.6 999.0 1011.0 999.0 DAY 18 4 3 6 12 15 5 13 11 5 27 24 MEAN QFF PRESSURE IN HPA 1024.5 1019.8 1017.5 1015.5 1014.2 1010.3 1009.7 1009.7 1015.8 1022.4 1018.5 1025.9 1017.0 MAX. QFF PRESSURE IN HPA 1036.8 1029.7 1030.1 1024.6 1018.3 1016.7 1016.9 1016.6 1025.4 1032.6 1036.3 1037.3 1037.3 DAY 30 27 8 24 2 1 23 21 16 30 11 26 MIN. QFF PRESSURE IN HPA 1010.5 1009.2 1007.1 1001.3 1009.1 1003.1 1003.4 1001.9 1008.3 1007.9 999.3 1011.2 999.3 DAY 18 4 3 6 12 15 5 13 11 5 27 24 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1027.1 1022.5 1020.5 1018.2 1017.1 1013.1 1012.7 1012.5 1018.9 1025.6 1021.5 1028.6 1019.8 MAX. QFE PRESSURE IN HPA 1039.8 1032.7 1033.4 1027.2 1021.6 1018.8 1019.7 1018.5 1028.9 1035.2 1038.7 1040.0 1040.0 DAY 30 27 8 24 2 1 23 21 16 30 11 26 MIN. QFE PRESSURE IN HPA 1011.4 1011.1 1010.6 1003.5 1009.4 1006.1 1007.4 1004.3 1011.2 1011.8 1002.2 1014.0 1002.2 DAY 18 2 13 6 11 15 5 13 11 5 27 24 MEAN QNH PRESSURE IN HPA 1024.3 1019.6 1017.6 1015.4 1014.3 1010.3 1009.9 1009.7 1016.0 1022.7 1018.7 1025.7 1017.0 MAX. QNH PRESSURE IN HPA 1036.9 1029.8 1030.5 1024.4 1018.8 1016.0 1016.9 1015.7 1026.0 1032.3 1035.8 1037.1 1037.1 DAY 30 27 8 24 2 1 23 21 16 30 11 26 MIN. QNH PRESSURE IN HPA 1008.6 1008.3 1007.8 1000.7 1006.6 1003.3 1004.6 1001.5 1008.4 1009.0 999.4 1011.2 999.4 DAY 18 2 13 6 11 15 5 13 11 5 27 24 MEAN QFF PRESSURE IN HPA 1024.4 1019.9 1017.9 1015.7 1014.6 1010.7 1010.3 1010.1 1016.4 1023.1 1018.9 1025.9 1017.3 MAX. QFF PRESSURE IN HPA 1037.0 1030.1 1030.7 1024.6 1019.0 1016.4 1017.3 1016.1 1026.4 1032.6 1036.1 1037.3 1037.3 DAY 30 27 8 24 2 1 23 21 16 30 11 26 MIN. QFF PRESSURE IN HPA 1008.8 1008.5 1008.0 1001.0 1006.9 1003.7 1005.0 1001.9 1008.8 1009.3 999.7 1011.4 999.7 DAY 18 2 13 6 11 15 5 13 11 5 27 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1028.2 1023.1 1020.9 1018.5 1017.5 1013.4 1012.9 1012.8 1019.4 1026.4 1022.2 1029.4 1020.4 MAX. QFE PRESSURE IN HPA 1040.5 1034.3 1033.4 1027.8 1021.9 1019.1 1019.5 1019.1 1029.7 1035.9 1039.1 1041.4 1041.4 DAY 30 27 8 24 2 1 22 31 16 29 11 26 MIN. QFE PRESSURE IN HPA 1013.0 1012.0 1011.0 1002.4 1008.0 1005.8 1008.1 1003.7 1011.4 1014.9 1000.4 1015.0 1000.4 DAY 18 2 3 6 11 15 8 13 11 5 27 24 MEAN QNH PRESSURE IN HPA 1025.4 1020.2 1018.1 1015.7 1014.7 1010.6 1010.1 1009.9 1016.6 1023.6 1019.3 1026.6 1017.6 MAX. QNH PRESSURE IN HPA 1037.6 1031.4 1030.5 1024.9 1019.1 1016.3 1016.7 1016.3 1026.8 1033.0 1036.2 1038.5 1038.5 DAY 30 27 8 24 2 1 22 31 16 29 11 26 MIN. QNH PRESSURE IN HPA 1010.2 1009.2 1008.2 999.6 1005.2 1003.0 1005.3 1000.9 1008.6 1012.1 997.6 1012.2 997.6 DAY 18 2 3 6 11 15 8 13 11 5 27 24 MEAN QFF PRESSURE IN HPA 1025.6 1020.5 1018.4 1016.0 1015.1 1011.0 1010.5 1010.3 1017.0 1023.9 1019.6 1026.8 1017.9 MAX. QFF PRESSURE IN HPA 1037.8 1031.6 1030.7 1025.2 1019.4 1016.7 1017.1 1016.7 1027.2 1033.3 1036.5 1038.7 1038.7 DAY 30 27 8 24 14 1 22 31 16 29 11 26 MIN. QFF PRESSURE IN HPA 1010.4 1009.4 1008.4 999.9 1005.6 1003.4 1005.7 1001.3 1009.0 1012.4 997.9 1012.4 997.9 DAY 18 2 3 6 11 15 8 13 11 5 27 24 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1027.6 1022.5 1020.5 1018.1 1017.4 1013.0 1012.5 1012.2 1018.8 1025.8 1020.9 1028.4 1019.8 MAX. QFE PRESSURE IN HPA 1037.8 1034.5 1031.7 1027.4 1021.9 1018.6 1019.0 1018.0 1029.3 1035.5 1037.4 1039.6 1039.6 DAY 30 27 8 24 23 1 22 31 16 29 11 26 MIN. QFE PRESSURE IN HPA 1011.4 1012.2 1009.9 998.8 1005.3 1005.1 1007.2 1002.9 1011.2 1013.6 995.7 1012.4 995.7 DAY 18 2 3 6 11 15 19 13 11 2 27 23 MEAN QNH PRESSURE IN HPA 1024.7 1019.6 1017.7 1015.3 1014.5 1010.2 1009.7 1009.4 1015.9 1022.9 1018.1 1025.6 1017.0 MAX. QNH PRESSURE IN HPA 1034.9 1031.6 1028.8 1024.6 1019.1 1015.8 1016.2 1015.2 1026.4 1032.6 1034.5 1036.7 1036.7 DAY 30 27 8 24 23 1 22 31 16 29 11 26 MIN. QNH PRESSURE IN HPA 1008.6 1009.4 1007.1 996.0 1002.5 1002.3 1004.4 1000.1 1008.4 1010.8 992.9 1009.6 992.9 DAY 18 2 3 6 11 15 19 13 11 2 27 23 MEAN QFF PRESSURE IN HPA 1024.9 1019.9 1017.9 1015.6 1014.9 1010.6 1010.1 1009.8 1016.3 1023.2 1018.4 1025.8 1017.3 MAX. QFF PRESSURE IN HPA 1035.1 1031.8 1029.1 1024.8 1019.4 1016.2 1016.6 1015.6 1026.8 1032.9 1034.8 1036.9 1036.9 DAY 30 27 8 24 23 1 22 31 16 29 11 26 MIN. QFF PRESSURE IN HPA 1008.8 1009.6 1007.3 996.3 1002.9 1002.7 1004.8 1000.5 1008.8 1011.2 993.2 1009.8 993.2 DAY 18 2 3 6 11 15 19 13 11 2 27 23 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1027.0 1021.8 1020.1 1017.9 1016.7 1012.6 1011.8 1011.5 1018.0 1025.5 1020.6 1028.1 1019.3 MAX. QFE PRESSURE IN HPA 1037.2 1033.9 1030.2 1027.6 1021.7 1018.6 1018.8 1017.5 1028.1 1034.9 1036.3 1038.0 1038.0 DAY 21 27 8 23 13 1 22 31 16 29 11 26 MIN. QFE PRESSURE IN HPA 1011.4 1012.4 1010.2 998.8 1002.6 1004.1 1006.2 1002.0 1011.2 1011.9 999.7 1011.8 998.8 DAY 18 2 26 6 11 15 19 13 11 2 27 23 MEAN QNH PRESSURE IN HPA 1024.1 1019.0 1017.2 1015.1 1013.9 1009.8 1009.0 1008.7 1015.2 1022.6 1017.7 1025.3 1016.5 MAX. QNH PRESSURE IN HPA 1034.3 1031.0 1027.3 1024.8 1018.9 1015.8 1016.0 1014.7 1025.2 1032.0 1033.4 1035.1 1035.1 DAY 21 27 8 23 13 1 22 31 16 29 11 26 MIN. QNH PRESSURE IN HPA 1008.6 1009.6 1007.4 996.0 999.8 1001.3 1003.4 999.2 1008.4 1009.1 996.9 1009.0 996.0 DAY 18 2 26 6 11 15 19 13 11 2 27 23 MEAN QFF PRESSURE IN HPA 1024.3 1019.2 1017.5 1015.4 1014.2 1010.2 1009.4 1009.2 1015.5 1023.0 1018.0 1025.5 1016.8 MAX. QFF PRESSURE IN HPA 1034.5 1031.3 1027.6 1025.0 1019.2 1016.2 1016.4 1015.1 1025.6 1032.3 1033.7 1035.3 1035.3 DAY 21 27 8 23 13 1 22 31 16 29 11 26 MIN. QFF PRESSURE IN HPA 1008.8 1009.8 1007.7 996.3 1000.2 1001.7 1003.8 999.6 1008.8 1009.5 997.2 1009.2 996.3 DAY 18 2 26 6 11 15 19 13 11 2 27 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1964 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1027.4 1022.3 1020.4 1017.9 1016.3 1012.3 1011.4 1011.4 1017.9 1025.8 1021.2 1028.5 1019.4 MAX. QFE PRESSURE IN HPA 1038.3 1033.9 1029.7 1027.6 1021.5 1018.4 1018.8 1017.6 1028.6 1035.3 1036.3 1038.5 1038.5 DAY 21 27 8 23 2 1 22 20 16 29 10 26 MIN. QFE PRESSURE IN HPA 1011.1 1013.9 1009.9 998.8 1001.9 1003.9 1005.4 1001.7 1011.7 1011.0 1003.4 1012.3 998.8 DAY 18 2 26 6 11 15 4 13 11 2 26 23 MEAN QNH PRESSURE IN HPA 1024.6 1019.4 1017.6 1015.1 1013.4 1009.5 1008.6 1008.6 1015.1 1022.9 1018.4 1025.6 1016.6 MAX. QNH PRESSURE IN HPA 1035.4 1031.0 1026.8 1024.8 1018.7 1015.6 1016.0 1014.8 1025.7 1032.4 1033.4 1035.6 1035.6 DAY 21 27 8 23 2 1 22 20 16 29 10 26 MIN. QNH PRESSURE IN HPA 1008.3 1011.1 1007.1 996.0 999.1 1001.1 1002.6 998.9 1008.9 1008.2 1000.6 1009.5 996.0 DAY 18 2 26 6 11 15 4 13 11 2 26 23 MEAN QFF PRESSURE IN HPA 1024.8 1019.6 1017.8 1015.3 1013.8 1009.9 1009.0 1009.0 1015.5 1023.2 1018.7 1025.8 1016.9 MAX. QFF PRESSURE IN HPA 1035.6 1031.3 1027.1 1025.0 1019.0 1016.0 1016.4 1015.2 1026.1 1032.7 1033.7 1035.8 1035.8 DAY 21 27 8 23 13 1 22 20 16 29 10 26 MIN. QFF PRESSURE IN HPA 1008.5 1011.3 1007.4 996.3 999.5 1001.5 1003.0 999.3 1009.3 1008.6 1000.9 1009.7 996.3 DAY 18 2 26 6 11 15 4 13 11 2 26 23 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1027.9 1022.6 1020.8 1018.6 1016.8 1012.6 1012.0 1012.1 1018.4 1025.9 1021.4 1028.6 1019.8 MAX. QFE PRESSURE IN HPA 1039.3 1033.9 1031.2 1027.5 1021.9 1018.7 1019.7 1019.3 1028.6 1035.3 1038.9 1040.0 1040.0 DAY 29 27 7 23 1 1 22 20 16 29 10 25 MIN. QFE PRESSURE IN HPA 1012.1 1013.2 1009.9 1007.8 1010.8 1006.5 1005.3 1002.7 1011.8 1010.9 1000.5 1013.2 1000.5 DAY 18 3 26 5 11 14 4 13 10 2 26 23 MEAN QNH PRESSURE IN HPA 1025.0 1019.8 1017.9 1015.7 1013.9 1009.8 1009.2 1009.3 1015.6 1023.1 1018.6 1025.8 1017.0 MAX. QNH PRESSURE IN HPA 1036.4 1031.0 1028.3 1024.7 1019.1 1015.9 1016.9 1016.5 1025.7 1032.4 1036.0 1037.1 1037.1 DAY 29 27 7 23 1 1 22 20 16 29 10 25 MIN. QNH PRESSURE IN HPA 1009.3 1010.4 1007.1 1005.0 1008.0 1003.7 1002.5 999.9 1009.0 1008.1 997.7 1010.4 997.7 DAY 18 3 26 5 11 14 4 13 10 2 26 23 MEAN QFF PRESSURE IN HPA 1025.2 1020.0 1018.2 1016.0 1014.3 1010.2 1009.6 1009.7 1016.0 1023.4 1018.9 1026.0 1017.3 MAX. QFF PRESSURE IN HPA 1036.6 1031.2 1028.6 1024.9 1019.3 1016.3 1017.3 1016.9 1026.1 1032.7 1036.3 1037.3 1037.3 DAY 29 27 7 23 1 1 22 20 16 29 10 25 MIN. QFF PRESSURE IN HPA 1009.5 1010.6 1007.4 1005.3 1008.4 1004.1 1002.9 1000.3 1009.4 1008.5 998.0 1010.6 998.0 DAY 18 3 26 5 11 14 4 13 10 2 26 23 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1027.5 1022.3 1020.6 1018.4 1016.7 1012.6 1012.0 1012.2 1018.4 1025.6 1021.0 1028.4 1019.6 MAX. QFE PRESSURE IN HPA 1039.3 1033.5 1031.9 1027.3 1021.4 1018.2 1019.7 1019.3 1028.6 1035.2 1038.9 1040.0 1040.0 DAY 29 27 7 23 1 1 22 20 16 29 10 25 MIN. QFE PRESSURE IN HPA 1013.1 1011.5 1011.5 1005.9 1012.5 1005.8 1005.5 1004.2 1010.7 1010.9 999.9 1014.2 999.9 DAY 18 3 26 5 10 14 4 12 10 4 26 23 MEAN QNH PRESSURE IN HPA 1024.7 1019.5 1017.8 1015.5 1013.9 1009.8 1009.2 1009.4 1015.6 1022.7 1018.2 1025.5 1016.8 MAX. QNH PRESSURE IN HPA 1036.4 1030.6 1029.0 1024.5 1018.6 1015.4 1016.9 1016.5 1025.7 1032.3 1036.0 1037.1 1037.1 DAY 29 27 7 23 1 1 22 20 16 29 10 25 MIN. QNH PRESSURE IN HPA 1010.3 1008.7 1008.7 1003.1 1009.7 1003.0 1002.7 1001.4 1007.9 1008.1 997.1 1011.4 997.1 DAY 18 3 26 5 10 14 4 12 10 4 26 23 MEAN QFF PRESSURE IN HPA 1024.9 1019.7 1018.0 1015.8 1014.2 1010.2 1009.6 1009.8 1016.0 1023.1 1018.5 1025.8 1017.1 MAX. QFF PRESSURE IN HPA 1036.6 1030.8 1029.3 1024.7 1018.8 1015.8 1017.3 1016.9 1026.1 1032.6 1036.3 1037.3 1037.3 DAY 29 27 7 23 1 1 22 20 16 29 10 25 MIN. QFF PRESSURE IN HPA 1010.5 1008.9 1009.0 1003.4 1010.0 1003.4 1003.1 1001.8 1008.3 1008.4 997.4 1011.6 997.4 DAY 18 3 26 5 10 14 4 12 10 4 26 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.1 7.8 9.1 12.6 18.6 24.0 26.1 26.2 22.7 17.8 13.5 9.9 16.2 MINIMUN AIR TEMPERATURE (C) 2.6 2.8 5.6 8.7 14.7 20.2 22.3 22.5 18.4 13.9 8.5 5.3 12.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 12 29 28 6 0 0 0 75 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 7 3 0 0 0 0 0 0 0 0 0 2 12 TEMPERATURE RECORDS LOWEST(C) -3.0 0.0 1.0 4.0 10.0 18.0 19.0 19.0 14.0 7.0 4.0 0.0 -3.0 DAY 6 3 14 10 5 2 7 9 27 27 30 23 MAXIMUM AIR TEMPERATURE (C) 9.9 12.9 12.4 16.3 23.4 28.2 30.0 30.1 27.2 21.8 19.0 15.3 20.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 4 20 22 3 0 0 0 51 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 14.0 18.0 23.0 23.0 35.0 31.0 35.0 33.0 30.0 28.0 25.0 21.0 35.0 DAY 8 23 1 28 16 8 18 26 10 8 17 14 DIF. BETWEEN (MAX.-MIN.) (C) 7.3 10.1 6.8 7.6 8.7 8.0 7.7 7.6 8.8 7.9 10.5 10.0 8.4 MEAN DAILY TEMP. (MDT) (C) 6.3 7.9 9.0 12.5 19.0 24.2 26.2 26.3 22.8 17.9 13.7 10.3 16.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 9.5 95.0 160.0 164.5 61.5 2.5 0.0 0.0 493.0 HEATING DEG. DAYS(BASE 18 0C) 363.0 284.0 278.0 164.5 18.0 0.0 0.0 0.0 0.0 38.0 127.5 238.5 1511.5 DEWPOINT (MEAN C) 4.5 5.5 6.7 9.9 14.9 19.8 21.8 22.4 18.9 15.5 11.0 7.5 13.2 MIXING RATIO (G/KG) 5.20 5.64 6.09 7.68 10.62 14.58 16.57 17.10 13.80 11.09 8.23 6.48 10.26 VAPOUR PRESSURE (HPA) 8.49 9.16 9.92 12.39 17.08 23.24 26.26 27.14 22.12 17.86 13.33 10.54 16.46 SATURATION DEF. (HPA) 1.08 1.68 1.84 2.54 4.85 6.93 7.98 7.34 6.09 3.05 2.53 1.98 3.99 RELATIVE HUMIDITY (MEAN %) 90 87 86 84 80 79 78 80 80 87 86 86 84 RELATIVE HUMIDITY (MAX. %) 97 96 95 95 94 92 93 93 94 96 97 96 95 RELATIVE HUMIDITY (MIN. %) 78 70 74 71 64 63 63 66 63 74 68 69 69 RELATIVE HUMIDITY (MEAN% 03UTC) 95 94 94 93 92 89 91 92 92 95 95 93 93 RELATIVE HUMIDITY (MEAN% 09UTC) 80 74 77 76 66 66 66 68 66 76 70 73 72 RELATIVE HUMIDITY (MEAN% 15UTC) 90 85 84 81 76 72 70 74 74 85 88 88 81 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 95.8 34.0 78.8 40.3 9.3 18.5 59.1 11.0 71.7 188.2 44.6 151.0 802.3 DAYS WITH PRECIPITATION >=10 2 1 3 1 0 0 1 0 3 5 3 6 25 DAYS WITH PRECIPITATION >= 5 6 3 3 4 1 2 2 1 5 7 3 6 43 DAYS WITH PRECIPITATION >= 1 13 4 7 7 1 5 6 4 6 14 6 7 80 DAYS WITH PRECIPITATION 16 4 12 7 2 10 9 10 8 17 7 7 109 GREATEST DAILY PRECIPITATION 24.0 18.0 45.0 11.0 9.0 6.0 43.0 6.0 22.0 59.0 15.0 39.0 59.0 DAY 11 16 13 5 4 30 24 22 6 16 28 22 DAY WITH THUNDER STORM 0 1 0 0 1 3 3 0 0 0 0 1 9 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 0 0 0 0 1 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 90 90 270 270 270 270 270 270 270 270 90 270 270 PREVAILING WIND SPEED(KNOTS) 3.1 4.3 4.6 5.2 5.7 5.1 4.4 4.2 4.4 5.4 3.4 4.1 4.8 PREVAILING WIND PERCENT 13.7 22.3 19.0 19.6 23.4 27.9 26.2 27.0 20.4 12.5 32.1 32.3 18.6 CALMS PERCENT OF WIND 61.3 50.9 44.4 44.6 44.0 40.8 41.9 41.5 43.3 55.6 57.1 56.9 48.5 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 55 46 19 315 298 305 292 307 319 281 65 264 315 VECTOR WIND MAGNITUDE(KNOTS) 0.2 1.3 0.7 0.9 1.4 1.8 1.9 1.6 0.9 0.4 1.0 1.5 0.8 WIND STEADINESES (MEAN %) 14.3 56.5 29.2 34.6 51.9 64.3 79.2 66.7 37.5 21.1 62.5 88.2 36.4 WIND SPEED (MEAN KNOTS) 1.4 2.3 2.4 2.6 2.7 2.8 2.4 2.4 2.4 1.9 1.6 1.7 2.2 FASTEST WIND DIRECTION 40 290 270 270 230 270 270 270 80 310 270 290 270 FASTEST WIND SPEED (KNOTS) 19 16 18 18 12 14 12 13 14 15 28 11 28 DAY 29 23 8 7 10 15 30 26 26 13 30 18 DAYS WITH SKY CLEAR (0-2)/8 7 15 9 6 10 12 12 16 11 9 16 12 135 DAYS WITH P.CLOUDY (3-6)/8 7 4 7 10 11 10 13 9 11 9 7 9 107 DAYS WITH CLOUDY (7-8)/8 17 9 15 14 10 8 6 6 8 13 7 10 123 DAYS WITH VISIBILITY =< 2 KM 0 6 3 2 2 0 0 0 1 0 7 2 23 DURATION OF SUNSHINE HOURS 101.2 169.5 132.7 138.9 207.2 227.6 227.7 220.4 180.2 116.3 162.1 130.3 2014.1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1024.1 1019.9 1024.1 1017.3 1017.5 1015.0 1012.6 1014.9 1019.7 1020.8 1021.3 1021.8 1019.1 MAX. QFE PRESSURE IN HPA 1036.6 1033.4 1039.6 1029.2 1031.6 1022.9 1018.7 1026.5 1027.2 1033.3 1030.8 1036.5 1039.6 DAY-HOUR 31- 6 1- 6 14-18 9- 9 20- 6 2- 6 1- 6 8-18 30-18 28- 6 28- 6 22- 6 MIN. QFE PRESSURE IN HPA 1008.0 998.3 1008.3 997.1 1006.6 1003.4 1005.3 1007.1 1014.5 1007.7 1007.8 1009.9 997.1 DAY-HOUR 11- 9 23- 3 31-21 3-21 2- 0 15-12 11-12 26-12 16-15 25-21 17-15 14-12 MEAN QNH PRESSURE IN HPA 1021.2 1017.0 1021.2 1014.5 1014.7 1012.2 1009.8 1012.0 1016.9 1018.0 1018.4 1019.0 1016.2 MAX. QNH PRESSURE IN HPA 1033.7 1030.5 1036.7 1026.3 1028.7 1020.1 1015.9 1023.7 1024.4 1030.4 1027.9 1033.6 1036.7 DAY-HOUR 31- 6 1- 6 14-18 9- 9 20- 6 2- 6 1- 6 8-18 30-18 28- 6 28- 6 22- 6 MIN. QNH PRESSURE IN HPA 1005.2 995.5 1005.5 994.3 1003.8 1000.6 1002.5 1004.3 1011.7 1004.9 1005.0 1007.1 994.3 DAY-HOUR 11- 9 23- 3 31-21 3-21 2- 0 15-12 11-12 26-12 16-15 25-21 17-15 14-12 MEAN QFF PRESSURE IN HPA 1021.4 1017.3 1021.5 1014.8 1015.0 1012.6 1010.2 1012.4 1017.2 1018.3 1018.7 1019.3 1016.6 MAX. QFF PRESSURE IN HPA 1033.9 1030.7 1036.9 1026.6 1029.1 1020.4 1016.3 1024.0 1024.7 1030.7 1028.2 1033.8 1036.9 DAY-HOUR 31- 6 1- 6 14-18 9- 9 20- 6 2- 6 1- 6 8-18 30-21 28- 6 28- 6 22- 6 MIN. QFF PRESSURE IN HPA 1005.4 995.8 1005.8 994.6 1004.1 1001.0 1002.9 1004.7 1012.1 1005.2 1005.3 1007.4 994.6 DAY-HOUR 11- 9 23- 3 31-21 3-21 2- 3 15-12 11-15 26-12 16-15 25-21 17-15 14-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1023.8 1019.9 1024.0 1016.7 1017.3 1014.8 1012.5 1014.5 1019.4 1020.5 1021.2 1021.4 1018.8 MAX. QFE PRESSURE IN HPA 1035.8 1033.3 1039.3 1027.9 1031.1 1021.9 1017.2 1026.0 1026.1 1031.2 1029.7 1034.9 1039.3 DAY 31 1 15 15 20 2 1 9 20 29 20 22 MIN. QFE PRESSURE IN HPA 1010.3 1001.3 1013.5 999.8 1006.6 1008.2 1005.8 1008.0 1015.3 1008.1 1010.9 1011.0 999.8 DAY 8 23 24 4 2 9 12 14 17 25 18 15 MEAN QNH PRESSURE IN HPA 1021.0 1017.1 1021.1 1013.9 1014.5 1012.0 1009.7 1011.7 1016.6 1017.7 1018.3 1018.5 1016.0 MAX. QNH PRESSURE IN HPA 1032.9 1030.4 1036.4 1025.0 1028.2 1019.1 1014.4 1023.2 1023.3 1028.3 1026.8 1032.0 1036.4 DAY 31 1 15 15 20 2 1 9 20 29 20 22 MIN. QNH PRESSURE IN HPA 1007.5 998.5 1010.7 997.0 1003.8 1005.4 1003.0 1005.2 1012.5 1005.3 1008.1 1008.2 997.0 DAY 8 23 24 4 2 9 12 14 17 25 18 15 MEAN QFF PRESSURE IN HPA 1021.2 1017.3 1021.4 1014.2 1014.8 1012.4 1010.1 1012.1 1016.9 1018.0 1018.6 1018.8 1016.3 MAX. QFF PRESSURE IN HPA 1033.1 1030.6 1036.6 1025.3 1028.6 1019.4 1014.8 1023.5 1023.6 1028.6 1027.2 1032.3 1036.6 DAY 31 1 15 15 20 2 2 9 20 29 28 22 MIN. QFF PRESSURE IN HPA 1007.7 998.8 1010.9 997.3 1004.1 1005.8 1003.4 1005.6 1012.9 1005.6 1008.5 1008.5 997.3 DAY 8 23 24 4 2 9 12 14 17 25 18 15 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1024.0 1020.0 1024.4 1017.4 1017.6 1015.3 1013.1 1015.2 1019.8 1020.8 1021.7 1021.7 1019.2 MAX. QFE PRESSURE IN HPA 1035.8 1033.0 1039.3 1027.8 1031.1 1021.9 1018.1 1026.0 1025.3 1032.1 1030.0 1034.9 1039.3 DAY 31 1 15 9 20 2 1 9 20 28 28 22 MIN. QFE PRESSURE IN HPA 1008.5 998.3 1014.4 1001.2 1006.6 1010.3 1006.8 1010.2 1015.8 1009.1 1011.3 1011.0 998.3 DAY 11 23 8 4 2 18 12 14 9 25 17 14 MEAN QNH PRESSURE IN HPA 1021.1 1017.2 1021.5 1014.6 1014.8 1012.5 1010.2 1012.4 1016.9 1017.9 1018.9 1018.9 1016.4 MAX. QNH PRESSURE IN HPA 1032.9 1030.1 1036.4 1024.9 1028.2 1019.1 1015.3 1023.2 1022.5 1029.2 1027.1 1032.0 1036.4 DAY 31 1 15 9 20 2 1 9 20 28 28 22 MIN. QNH PRESSURE IN HPA 1005.7 995.5 1011.6 998.4 1003.8 1007.5 1004.0 1007.4 1013.0 1006.3 1008.5 1008.2 995.5 DAY 11 23 8 4 2 18 12 14 9 25 17 14 MEAN QFF PRESSURE IN HPA 1021.3 1017.4 1021.8 1014.8 1015.1 1012.9 1010.7 1012.8 1017.3 1018.3 1019.2 1019.1 1016.7 MAX. QFF PRESSURE IN HPA 1033.1 1030.3 1036.6 1025.2 1028.6 1019.4 1015.7 1023.5 1022.8 1029.5 1027.4 1032.3 1036.6 DAY 31 1 15 9 20 2 1 9 20 28 28 22 MIN. QFF PRESSURE IN HPA 1005.9 995.8 1011.8 998.7 1004.1 1007.9 1004.4 1007.8 1013.3 1006.6 1008.8 1008.4 995.8 DAY 11 23 8 4 2 18 12 14 9 25 17 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1024.8 1020.8 1024.8 1018.0 1018.0 1015.7 1013.3 1015.8 1020.4 1021.5 1022.3 1022.9 1019.9 MAX. QFE PRESSURE IN HPA 1036.6 1033.4 1039.5 1028.9 1031.6 1022.9 1018.7 1026.3 1025.6 1033.3 1030.8 1036.5 1039.5 DAY 31 1 15 9 20 2 1 9 30 28 28 22 MIN. QFE PRESSURE IN HPA 1008.5 1002.0 1012.4 1004.0 1008.1 1008.4 1007.1 1011.2 1016.8 1010.1 1011.9 1012.5 1002.0 DAY 11 23 8 4 16 15 11 31 9 25 17 14 MEAN QNH PRESSURE IN HPA 1022.0 1018.0 1021.9 1015.1 1015.2 1012.8 1010.5 1012.9 1017.5 1018.7 1019.5 1020.0 1017.0 MAX. QNH PRESSURE IN HPA 1033.7 1030.5 1036.6 1026.0 1028.7 1020.1 1015.9 1023.5 1022.8 1030.4 1027.9 1033.6 1036.6 DAY 31 1 15 9 20 2 1 9 30 28 28 22 MIN. QNH PRESSURE IN HPA 1005.7 999.2 1009.6 1001.2 1005.3 1005.6 1004.3 1008.4 1014.0 1007.3 1009.1 1009.7 999.2 DAY 11 23 8 4 16 15 11 31 9 25 17 14 MEAN QFF PRESSURE IN HPA 1022.2 1018.2 1022.2 1015.4 1015.5 1013.2 1010.9 1013.4 1017.9 1019.0 1019.8 1020.3 1017.3 MAX. QFF PRESSURE IN HPA 1033.9 1030.7 1036.8 1026.3 1029.1 1020.4 1016.3 1023.8 1023.1 1030.7 1028.2 1033.8 1036.8 DAY 31 1 15 9 20 2 1 9 30 28 28 22 MIN. QFF PRESSURE IN HPA 1005.9 999.5 1009.8 1001.5 1005.7 1006.0 1004.7 1008.8 1014.4 1007.6 1009.4 1009.9 999.5 DAY 11 23 8 4 16 15 11 31 9 25 17 14 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1024.1 1020.0 1024.3 1017.7 1017.7 1015.2 1012.9 1015.4 1019.9 1020.9 1021.4 1022.0 1019.3 MAX. QFE PRESSURE IN HPA 1036.1 1031.7 1038.1 1029.2 1030.6 1022.7 1018.3 1024.5 1025.6 1033.0 1030.1 1035.3 1038.1 DAY 31 1 15 9 20 2 1 9 30 28 19 22 MIN. QFE PRESSURE IN HPA 1008.0 1000.4 1012.4 1006.4 1007.7 1006.4 1006.0 1010.6 1016.3 1009.6 1010.4 1010.9 1000.4 DAY 11 9 8 4 16 15 11 26 9 25 17 14 MEAN QNH PRESSURE IN HPA 1021.2 1017.1 1021.4 1014.9 1014.9 1012.4 1010.0 1012.6 1017.1 1018.0 1018.5 1019.2 1016.4 MAX. QNH PRESSURE IN HPA 1033.2 1028.8 1035.2 1026.3 1027.7 1019.9 1015.5 1021.7 1022.8 1030.1 1027.2 1032.4 1035.2 DAY 31 1 15 9 20 2 1 9 30 28 19 22 MIN. QNH PRESSURE IN HPA 1005.2 997.6 1009.6 1003.6 1004.9 1003.6 1003.2 1007.8 1013.5 1006.8 1007.6 1008.1 997.6 DAY 11 9 8 4 16 15 11 26 9 25 17 14 MEAN QFF PRESSURE IN HPA 1021.5 1017.4 1021.7 1015.1 1015.2 1012.8 1010.5 1013.0 1017.5 1018.4 1018.8 1019.5 1016.8 MAX. QFF PRESSURE IN HPA 1033.4 1029.1 1035.4 1026.6 1028.1 1020.2 1015.9 1022.0 1023.1 1030.4 1027.5 1032.7 1035.4 DAY 31 1 15 9 20 2 1 9 30 28 19 22 MIN. QFF PRESSURE IN HPA 1005.4 997.9 1009.8 1003.9 1005.3 1004.0 1003.6 1008.2 1013.9 1007.1 1007.9 1008.4 997.9 DAY 11 9 8 4 16 15 11 30 9 25 17 14 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1023.6 1019.2 1023.5 1017.2 1017.3 1014.7 1012.2 1014.7 1019.3 1020.4 1020.6 1021.4 1018.7 MAX. QFE PRESSURE IN HPA 1035.3 1031.6 1037.4 1028.7 1029.6 1022.0 1017.4 1025.0 1025.6 1032.4 1029.7 1034.1 1037.4 DAY 30 16 15 9 20 2 1 8 30 28 19 22 MIN. QFE PRESSURE IN HPA 1008.3 1000.0 1010.6 1002.9 1007.4 1003.4 1005.3 1007.1 1015.2 1008.2 1008.4 1009.9 1000.0 DAY 11 9 8 3 16 15 11 26 16 24 17 14 MEAN QNH PRESSURE IN HPA 1020.8 1016.4 1020.6 1014.3 1014.5 1011.9 1009.4 1011.9 1016.4 1017.6 1017.8 1018.5 1015.8 MAX. QNH PRESSURE IN HPA 1032.4 1028.7 1034.5 1025.8 1026.7 1019.2 1014.6 1022.2 1022.8 1029.5 1026.8 1031.2 1034.5 DAY 30 16 15 9 20 2 1 8 30 28 19 22 MIN. QNH PRESSURE IN HPA 1005.5 997.2 1007.8 1000.1 1004.6 1000.6 1002.5 1004.3 1012.4 1005.4 1005.6 1007.1 997.2 DAY 11 9 8 3 16 15 11 26 16 24 17 14 MEAN QFF PRESSURE IN HPA 1021.0 1016.7 1020.9 1014.6 1014.9 1012.3 1009.8 1012.3 1016.8 1017.9 1018.1 1018.8 1016.2 MAX. QFF PRESSURE IN HPA 1032.6 1029.0 1034.7 1026.1 1027.1 1019.5 1015.0 1022.5 1023.1 1029.8 1027.1 1031.5 1034.7 DAY 30 16 15 9 20 2 1 8 30 28 19 22 MIN. QFF PRESSURE IN HPA 1005.7 997.5 1008.1 1000.4 1005.0 1001.0 1002.9 1004.7 1012.8 1005.7 1005.9 1007.4 997.5 DAY 11 9 8 3 16 15 11 26 16 24 17 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1965 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1024.0 1019.7 1023.6 1017.1 1017.0 1014.5 1012.0 1014.3 1019.3 1020.6 1021.0 1021.8 1018.7 MAX. QFE PRESSURE IN HPA 1036.2 1032.2 1037.7 1028.7 1029.3 1021.5 1016.9 1025.4 1026.6 1032.4 1029.8 1032.9 1037.7 DAY 30 16 14 9 19 2 1 8 30 28 10 22 MIN. QFE PRESSURE IN HPA 1009.8 1004.2 1009.4 1001.1 1007.7 1007.1 1005.3 1009.2 1014.5 1008.4 1007.8 1010.7 1001.1 DAY 8 9 8 3 16 15 11 30 16 25 17 14 MEAN QNH PRESSURE IN HPA 1021.2 1016.8 1020.7 1014.2 1014.2 1011.7 1009.2 1011.5 1016.4 1017.7 1018.2 1019.0 1015.9 MAX. QNH PRESSURE IN HPA 1033.3 1029.3 1034.8 1025.8 1026.4 1018.7 1014.1 1022.6 1023.8 1029.5 1026.9 1030.0 1034.8 DAY 30 16 14 9 19 2 1 8 30 28 10 22 MIN. QNH PRESSURE IN HPA 1007.0 1001.4 1006.6 998.3 1004.9 1004.3 1002.5 1006.4 1011.7 1005.6 1005.0 1007.9 998.3 DAY 8 9 8 3 16 15 11 30 16 25 17 14 MEAN QFF PRESSURE IN HPA 1021.4 1017.1 1021.0 1014.5 1014.5 1012.1 1009.6 1011.9 1016.8 1018.1 1018.5 1019.2 1016.2 MAX. QFF PRESSURE IN HPA 1033.5 1029.6 1035.0 1026.1 1026.8 1019.0 1014.5 1022.9 1024.1 1029.8 1027.2 1030.3 1035.0 DAY 30 16 14 9 19 2 1 8 30 28 10 22 MIN. QFF PRESSURE IN HPA 1007.2 1001.7 1006.8 998.6 1005.3 1004.7 1002.9 1006.8 1012.1 1005.9 1005.3 1008.2 998.6 DAY 8 9 8 3 16 15 11 30 16 25 17 14 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1024.3 1019.8 1024.2 1017.6 1017.8 1015.0 1012.5 1014.6 1019.9 1021.3 1021.1 1022.0 1019.2 MAX. QFE PRESSURE IN HPA 1036.2 1032.7 1039.6 1028.2 1030.7 1021.5 1016.9 1026.5 1027.2 1032.5 1029.7 1033.3 1039.6 DAY 30 16 14 15 19 2 1 8 30 28 19 21 MIN. QFE PRESSURE IN HPA 1009.4 1003.8 1009.1 999.4 1008.0 1007.4 1005.6 1009.2 1014.9 1008.1 1007.8 1011.1 999.4 DAY 8 22 31 3 15 15 11 30 16 25 17 14 MEAN QNH PRESSURE IN HPA 1021.4 1017.0 1021.4 1014.8 1015.0 1012.2 1009.7 1011.8 1017.0 1018.5 1018.2 1019.2 1016.3 MAX. QNH PRESSURE IN HPA 1033.3 1029.8 1036.7 1025.3 1027.8 1018.7 1014.1 1023.7 1024.4 1029.6 1026.8 1030.4 1036.7 DAY 30 16 14 15 19 2 1 8 30 28 19 21 MIN. QNH PRESSURE IN HPA 1006.6 1001.0 1006.3 996.6 1005.2 1004.6 1002.8 1006.4 1012.1 1005.3 1005.0 1008.3 996.6 DAY 8 22 31 3 15 15 11 30 16 25 17 14 MEAN QFF PRESSURE IN HPA 1021.7 1017.2 1021.6 1015.1 1015.3 1012.6 1010.1 1012.2 1017.4 1018.8 1018.5 1019.4 1016.7 MAX. QFF PRESSURE IN HPA 1033.5 1030.1 1036.9 1025.6 1028.2 1019.1 1014.5 1024.0 1024.7 1029.9 1027.1 1030.7 1036.9 DAY 30 16 14 15 19 2 1 8 30 28 19 21 MIN. QFF PRESSURE IN HPA 1006.8 1001.2 1006.6 996.9 1005.6 1005.0 1003.2 1006.8 1012.5 1005.6 1005.3 1008.5 996.9 DAY 8 22 31 3 15 15 11 30 16 25 17 14 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1024.0 1019.5 1024.0 1017.2 1017.5 1014.8 1012.5 1014.5 1019.9 1020.9 1021.1 1021.7 1019.0 MAX. QFE PRESSURE IN HPA 1036.2 1032.3 1039.6 1028.1 1031.1 1021.5 1017.2 1026.2 1027.2 1031.8 1029.7 1033.9 1039.6 DAY 30 16 14 14 19 1 1 8 30 28 19 21 MIN. QFE PRESSURE IN HPA 1010.1 1002.4 1008.3 997.1 1006.9 1008.9 1005.8 1008.0 1014.9 1007.7 1007.8 1010.7 997.1 DAY 8 22 31 3 15 8 11 26 16 25 17 14 MEAN QNH PRESSURE IN HPA 1021.2 1016.7 1021.2 1014.4 1014.7 1012.0 1009.7 1011.7 1017.1 1018.1 1018.2 1018.9 1016.1 MAX. QNH PRESSURE IN HPA 1033.3 1029.4 1036.7 1025.2 1028.2 1018.7 1014.4 1023.4 1024.4 1028.9 1026.8 1031.0 1036.7 DAY 30 16 14 14 19 1 1 8 30 28 19 21 MIN. QNH PRESSURE IN HPA 1007.3 999.6 1005.5 994.3 1004.1 1006.1 1003.0 1005.2 1012.1 1004.9 1005.0 1007.9 994.3 DAY 8 22 31 3 15 8 11 26 16 25 17 14 MEAN QFF PRESSURE IN HPA 1021.4 1016.9 1021.5 1014.6 1015.1 1012.3 1010.1 1012.1 1017.4 1018.4 1018.5 1019.1 1016.5 MAX. QFF PRESSURE IN HPA 1033.5 1029.6 1036.9 1025.5 1028.6 1019.1 1014.8 1023.7 1024.7 1029.2 1027.1 1031.3 1036.9 DAY 30 16 14 14 19 1 1 8 30 28 19 21 MIN. QFF PRESSURE IN HPA 1007.5 999.9 1005.8 994.6 1004.5 1006.5 1003.4 1005.6 1012.5 1005.2 1005.4 1008.2 994.6 DAY 8 22 31 3 15 18 11 26 16 25 17 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 10.7 10.0 11.4 15.5 18.5 24.1 26.2 27.5 22.9 17.6 13.9 10.7 17.4 MINIMUN AIR TEMPERATURE (C) 7.1 6.9 8.4 12.1 15.4 20.6 22.0 23.5 19.6 14.1 9.4 6.6 13.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 13 26 31 9 0 0 0 79 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS LOWEST(C) 3.0 1.0 3.0 7.0 10.0 17.0 18.0 21.0 17.0 8.0 3.0 1.0 1.0 DAY 15 7 3 5 19 1 8 17 20 18 27 25 MAXIMUM AIR TEMPERATURE (C) 15.9 13.6 15.3 19.7 21.9 27.7 30.5 31.9 26.9 22.2 19.6 16.4 21.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 6 22 30 0 0 0 0 58 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 24.0 20.0 21.0 29.0 28.0 32.0 34.0 34.0 29.0 26.0 23.0 24.0 34.0 DAY 6 26 12 16 25 8 25 3 4 31 1 17 DIF. BETWEEN (MAX.-MIN.) (C) 8.8 6.7 6.9 7.6 6.5 7.1 8.5 8.4 7.3 8.1 10.2 9.8 8.0 MEAN DAILY TEMP. (MDT) (C) 11.5 10.2 11.9 15.9 18.6 24.1 26.3 27.7 23.2 18.1 14.5 11.5 17.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 4.0 93.5 163.0 207.5 67.0 0.5 0.0 0.0 535.5 HEATING DEG. DAYS(BASE 18 0C) 201.0 217.5 190.5 73.0 18.5 0.0 0.0 0.0 0.0 18.5 105.5 201.0 1025.5 DEWPOINT (MEAN C) 8.3 7.8 8.7 12.4 14.9 19.6 21.6 23.4 19.5 15.0 11.2 8.5 14.2 MIXING RATIO (G/KG) 6.79 6.57 7.01 9.02 10.65 14.46 16.52 18.36 14.27 10.66 8.37 6.94 10.80 VAPOUR PRESSURE (HPA) 11.03 10.65 11.33 14.52 17.13 22.99 26.10 28.94 22.79 17.21 13.63 11.23 17.30 SATURATION DEF. (HPA) 2.14 1.83 2.38 3.45 4.47 7.31 8.52 8.34 5.46 3.30 2.80 2.04 4.34 RELATIVE HUMIDITY (MEAN %) 87 87 84 83 81 78 77 80 83 86 85 87 83 RELATIVE HUMIDITY (MAX. %) 97 95 95 95 94 92 93 94 95 96 97 97 95 RELATIVE HUMIDITY (MIN. %) 71 75 70 68 67 62 58 64 66 68 65 68 67 RELATIVE HUMIDITY (MEAN% 03UTC) 94 93 93 93 91 87 89 91 94 95 96 94 93 RELATIVE HUMIDITY (MEAN% 09UTC) 73 77 74 72 69 67 63 66 71 72 66 70 70 RELATIVE HUMIDITY (MEAN% 15UTC) 86 84 79 77 75 70 71 72 75 83 83 87 79 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 52.3 40.5 123.2 28.4 17.4 40.6 11.7 38.3 78.5 120.5 6.0 100.6 658.0 DAYS WITH PRECIPITATION >=10 3 2 5 1 0 2 0 1 3 6 0 3 26 DAYS WITH PRECIPITATION >= 5 5 2 6 3 1 3 1 1 4 6 1 6 39 DAYS WITH PRECIPITATION >= 1 6 5 8 5 4 4 3 1 9 8 1 6 60 DAYS WITH PRECIPITATION 8 9 12 9 6 4 8 2 11 11 1 7 88 GREATEST DAILY PRECIPITATION 12.0 23.0 42.5 11.0 6.6 20.2 5.0 38.0 27.0 44.0 6.0 28.0 44.0 DAY 12 6 2 24 6 15 7 6 12 16 6 3 DAY WITH THUNDER STORM 0 0 0 0 0 0 5 4 2 1 0 5 17 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 270 45 45 270 270 315 315 225 225 225 45 180 270 PREVAILING WIND SPEED(KNOTS) 3.2 5.2 6.4 6.8 7.3 6.1 6.3 3.6 3.7 4.0 5.2 3.3 5.9 PREVAILING WIND PERCENT 34.7 12.9 15.7 23.8 22.2 17.1 16.1 21.4 19.6 9.3 12.5 11.3 13.4 CALMS PERCENT OF WIND 58.9 44.6 33.5 27.9 21.4 31.3 33.9 26.2 32.5 49.2 51.7 44.0 37.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 272 355 11 315 317 322 302 301 311 47 68 122 320 VECTOR WIND MAGNITUDE(KNOTS) 1.2 0.7 1.1 1.6 2.2 2.2 2.1 1.9 0.8 0.4 0.5 0.8 1.0 WIND STEADINESES (MEAN %) 92.3 24.1 28.2 37.2 46.8 56.4 58.3 50.0 24.2 16.0 23.8 33.3 31.3 WIND SPEED (MEAN KNOTS) 1.3 2.9 3.9 4.3 4.7 3.9 3.6 3.8 3.3 2.5 2.1 2.4 3.2 FASTEST WIND DIRECTION 270 290 310 270 270 350 280 240 330 40 280 300 270 FASTEST WIND SPEED (KNOTS) 8 15 17 15 18 12 14 12 15 15 10 12 18 DAY 11 19 20 23 26 3 1 5 27 16 1 2 DAYS WITH SKY CLEAR (0-2)/8 12 9 7 4 10 15 22 22 9 12 17 13 152 DAYS WITH P.CLOUDY (3-6)/8 10 6 11 14 10 10 5 7 9 7 7 12 108 DAYS WITH CLOUDY (7-8)/8 9 13 13 12 11 5 4 2 12 12 6 6 105 DAYS WITH VISIBILITY =< 2 KM 5 7 1 2 1 1 0 0 0 0 1 2 20 DURATION OF SUNSHINE HOURS 145.9 117.3 146.1 152.8 181.9 229.0 248.5 241.0 142.4 120.1 166.6 142.5 2034.1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1021.3 1019.7 1018.3 1016.5 1018.0 1012.5 1009.6 1009.7 1016.4 1021.8 1026.9 1019.2 1017.5 MAX. QFE PRESSURE IN HPA 1031.7 1029.3 1031.5 1030.0 1028.9 1019.5 1019.5 1019.3 1024.5 1032.4 1036.6 1034.0 1036.6 DAY-HOUR 1- 0 23- 6 2- 9 5- 6 17-18 17- 6 7-18 31-21 21- 3 9- 6 23- 6 30- 6 MIN. QFE PRESSURE IN HPA 1008.3 1009.5 1001.5 1003.1 1006.8 1002.6 1002.0 1002.5 1007.0 1011.8 1010.8 1004.4 1001.5 DAY-HOUR 26-21 2-15 20- 0 16-18 3-21 13-12 4-18 29- 3 11- 3 15-12 30-12 18- 3 MEAN QNH PRESSURE IN HPA 1018.5 1016.9 1015.4 1013.6 1015.1 1009.7 1006.8 1006.9 1013.5 1019.0 1024.1 1016.4 1014.7 MAX. QNH PRESSURE IN HPA 1028.8 1026.4 1028.6 1027.1 1026.0 1016.7 1016.7 1016.5 1021.7 1029.5 1033.7 1031.1 1033.7 DAY-HOUR 1- 0 23- 6 2- 9 5- 6 17-18 17- 6 7-18 31-21 21- 3 9- 6 23- 6 30- 6 MIN. QNH PRESSURE IN HPA 1005.5 1006.7 998.7 1000.3 1004.0 999.8 999.2 999.7 1004.2 1009.0 1008.0 1001.6 998.7 DAY-HOUR 26-21 2-15 20- 0 16-18 3-21 13-12 4-18 29- 3 11- 3 15-12 30-12 18- 3 MEAN QFF PRESSURE IN HPA 1018.7 1017.2 1015.7 1014.0 1015.5 1010.1 1007.2 1007.3 1013.9 1019.3 1024.4 1016.7 1015.0 MAX. QFF PRESSURE IN HPA 1029.1 1026.7 1028.9 1027.4 1026.4 1017.0 1017.1 1016.9 1022.0 1029.9 1034.0 1031.4 1034.0 DAY-HOUR 1- 0 23- 6 2- 9 5- 6 17-18 17- 6 7-18 31-21 21- 3 9- 6 23- 6 30- 6 MIN. QFF PRESSURE IN HPA 1005.8 1007.0 999.0 1000.7 1004.4 1000.2 999.6 1000.1 1004.6 1009.3 1008.2 1001.9 999.0 DAY-HOUR 27- 0 2-15 20- 0 16-18 3-21 13-12 4-21 29- 3 11- 3 15-15 30-15 18- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1021.3 1019.7 1017.6 1016.1 1017.5 1012.4 1009.4 1009.4 1016.4 1021.3 1026.7 1018.9 1017.2 MAX. QFE PRESSURE IN HPA 1031.7 1028.2 1027.1 1029.0 1027.6 1018.7 1018.9 1013.3 1022.5 1030.3 1034.7 1033.4 1034.7 DAY 1 23 3 5 18 3 8 8 16 9 23 30 MIN. QFE PRESSURE IN HPA 1008.3 1010.7 1001.5 1004.3 1007.9 1005.5 1002.0 1002.7 1008.2 1013.6 1013.0 1006.3 1001.5 DAY 27 3 20 13 4 13 5 29 11 16 30 18 MEAN QNH PRESSURE IN HPA 1018.4 1016.8 1014.8 1013.3 1014.7 1009.6 1006.6 1006.6 1013.6 1018.5 1023.9 1016.1 1014.4 MAX. QNH PRESSURE IN HPA 1028.8 1025.3 1024.3 1026.1 1024.8 1015.9 1016.1 1010.5 1019.7 1027.4 1031.8 1030.5 1031.8 DAY 1 23 3 5 18 3 8 8 16 9 23 30 MIN. QNH PRESSURE IN HPA 1005.5 1007.9 998.7 1001.5 1005.1 1002.7 999.2 999.9 1005.4 1010.8 1010.2 1003.5 998.7 DAY 27 3 20 13 4 13 5 29 11 16 30 18 MEAN QFF PRESSURE IN HPA 1018.7 1017.1 1015.0 1013.6 1015.0 1010.0 1007.0 1007.0 1014.0 1018.8 1024.2 1016.4 1014.7 MAX. QFF PRESSURE IN HPA 1029.1 1025.6 1024.5 1026.4 1025.1 1016.3 1016.4 1010.9 1020.0 1027.8 1032.1 1030.8 1032.1 DAY 1 23 3 5 18 3 8 8 16 9 23 30 MIN. QFF PRESSURE IN HPA 1005.8 1008.1 999.0 1001.9 1005.4 1003.1 999.6 1000.3 1005.8 1011.1 1010.4 1003.8 999.0 DAY 27 3 20 13 4 13 5 29 11 16 30 18 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1021.5 1019.8 1018.1 1016.6 1018.1 1013.2 1010.1 1010.1 1016.7 1021.7 1027.2 1019.1 1017.7 MAX. QFE PRESSURE IN HPA 1029.8 1027.9 1028.5 1029.8 1028.0 1019.2 1018.9 1014.1 1024.5 1031.6 1035.7 1033.4 1035.7 DAY 1 23 2 5 18 17 8 8 21 9 23 30 MIN. QFE PRESSURE IN HPA 1010.7 1012.2 1002.2 1004.5 1011.4 1005.5 1003.2 1002.5 1007.0 1014.2 1013.4 1004.4 1002.2 DAY 27 3 20 17 26 13 5 29 11 15 30 18 MEAN QNH PRESSURE IN HPA 1018.7 1017.0 1015.2 1013.7 1015.3 1010.4 1007.3 1007.2 1013.8 1018.8 1024.3 1016.3 1014.8 MAX. QNH PRESSURE IN HPA 1026.9 1025.0 1025.6 1026.9 1025.1 1016.4 1016.1 1011.3 1021.7 1028.7 1032.8 1030.5 1032.8 DAY 1 23 2 5 18 17 8 8 21 9 23 30 MIN. QNH PRESSURE IN HPA 1007.9 1009.4 999.4 1001.7 1008.6 1002.7 1000.4 999.7 1004.2 1011.4 1010.6 1001.6 999.4 DAY 27 3 20 17 26 13 5 29 11 15 30 18 MEAN QFF PRESSURE IN HPA 1019.0 1017.2 1015.5 1014.1 1015.6 1010.8 1007.7 1007.7 1014.2 1019.1 1024.6 1016.6 1015.2 MAX. QFF PRESSURE IN HPA 1027.2 1025.3 1025.9 1027.2 1025.5 1016.7 1016.4 1011.7 1022.0 1029.1 1033.1 1030.8 1033.1 DAY 1 23 2 5 18 17 8 8 21 9 23 30 MIN. QFF PRESSURE IN HPA 1008.2 1009.6 999.7 1002.1 1009.0 1003.1 1000.8 1000.1 1004.6 1011.7 1010.8 1001.9 999.7 DAY 27 3 20 17 26 13 5 29 11 15 30 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.2 1020.5 1018.9 1017.4 1018.8 1013.4 1010.5 1010.6 1017.2 1022.7 1028.2 1020.2 1018.4 MAX. QFE PRESSURE IN HPA 1029.0 1029.3 1030.5 1030.0 1028.0 1019.5 1018.9 1014.6 1024.1 1032.4 1036.6 1034.0 1036.6 DAY 17 23 2 5 18 17 8 31 15 9 23 30 MIN. QFE PRESSURE IN HPA 1011.1 1011.9 1003.4 1005.0 1011.4 1003.6 1004.0 1003.1 1007.2 1013.6 1013.7 1005.0 1003.1 DAY 27 2 28 13 25 13 5 29 11 15 30 18 MEAN QNH PRESSURE IN HPA 1019.4 1017.7 1016.0 1014.6 1016.0 1010.6 1007.7 1007.8 1014.4 1019.9 1025.4 1017.3 1015.6 MAX. QNH PRESSURE IN HPA 1026.1 1026.4 1027.6 1027.1 1025.1 1016.7 1016.1 1011.8 1021.3 1029.5 1033.7 1031.1 1033.7 DAY 17 23 2 5 18 17 8 31 15 9 23 30 MIN. QNH PRESSURE IN HPA 1008.3 1009.1 1000.6 1002.2 1008.6 1000.8 1001.2 1000.3 1004.4 1010.8 1010.9 1002.2 1000.3 DAY 27 2 28 13 25 13 5 29 11 15 30 18 MEAN QFF PRESSURE IN HPA 1019.6 1018.0 1016.3 1014.9 1016.3 1011.0 1008.1 1008.2 1014.7 1020.2 1025.7 1017.6 1015.9 MAX. QFF PRESSURE IN HPA 1026.4 1026.7 1027.9 1027.4 1025.5 1017.0 1016.5 1012.2 1021.6 1029.9 1034.0 1031.4 1034.0 DAY 17 23 2 5 18 17 8 31 21 9 23 30 MIN. QFF PRESSURE IN HPA 1008.6 1009.3 1000.9 1002.5 1009.0 1001.2 1001.6 1000.7 1004.8 1011.1 1011.1 1002.5 1000.7 DAY 27 2 28 13 25 13 5 29 11 15 30 18 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1021.5 1019.9 1018.7 1016.9 1018.5 1012.9 1010.2 1010.1 1016.5 1022.1 1027.0 1019.2 1017.8 MAX. QFE PRESSURE IN HPA 1029.0 1028.8 1031.5 1029.1 1028.0 1018.8 1018.4 1015.3 1023.6 1031.8 1035.1 1032.8 1035.1 DAY 17 23 2 5 18 17 7 31 21 17 23 30 MIN. QFE PRESSURE IN HPA 1011.1 1010.8 1003.1 1003.6 1009.6 1002.9 1003.6 1002.9 1009.5 1012.6 1011.5 1004.5 1002.9 DAY 3 2 28 13 25 13 5 29 8 15 30 18 MEAN QNH PRESSURE IN HPA 1018.7 1017.1 1015.8 1014.1 1015.7 1010.1 1007.4 1007.3 1013.6 1019.3 1024.2 1016.3 1015.0 MAX. QNH PRESSURE IN HPA 1026.1 1025.9 1028.6 1026.2 1025.1 1016.0 1015.6 1012.5 1020.8 1028.9 1032.2 1029.9 1032.2 DAY 17 23 2 5 18 17 7 31 21 17 23 30 MIN. QNH PRESSURE IN HPA 1008.3 1008.0 1000.3 1000.8 1006.8 1000.1 1000.8 1000.1 1006.7 1009.8 1008.7 1001.7 1000.1 DAY 3 2 28 13 25 13 5 29 8 15 30 18 MEAN QFF PRESSURE IN HPA 1018.9 1017.4 1016.1 1014.4 1016.0 1010.5 1007.8 1007.7 1014.0 1019.6 1024.5 1016.6 1015.3 MAX. QFF PRESSURE IN HPA 1026.4 1026.2 1028.9 1026.5 1025.5 1016.3 1016.0 1012.9 1021.1 1029.2 1032.5 1030.2 1032.5 DAY 17 23 2 5 18 17 8 31 21 17 23 30 MIN. QFF PRESSURE IN HPA 1008.6 1008.3 1000.6 1001.2 1007.2 1000.5 1001.2 1000.5 1007.1 1010.1 1008.9 1002.0 1000.5 DAY 3 2 28 13 25 13 5 29 24 15 30 18 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1020.7 1019.2 1018.0 1016.2 1017.7 1012.1 1009.3 1009.3 1015.8 1021.5 1026.4 1018.5 1017.1 MAX. QFE PRESSURE IN HPA 1028.0 1028.0 1030.9 1027.5 1027.1 1017.6 1018.4 1015.6 1022.9 1031.0 1034.4 1032.0 1034.4 DAY 17 6 2 5 18 17 7 31 21 17 23 30 MIN. QFE PRESSURE IN HPA 1011.5 1010.5 1003.0 1003.8 1008.5 1002.6 1002.7 1003.7 1008.3 1011.8 1010.8 1007.0 1002.6 DAY 3 2 28 16 25 13 5 29 8 15 30 18 MEAN QNH PRESSURE IN HPA 1017.9 1016.4 1015.2 1013.4 1014.9 1009.3 1006.5 1006.5 1013.0 1018.7 1023.5 1015.7 1014.2 MAX. QNH PRESSURE IN HPA 1025.1 1025.1 1028.0 1024.7 1024.3 1014.8 1015.6 1012.8 1020.1 1028.1 1031.5 1029.1 1031.5 DAY 17 6 2 5 18 17 7 31 21 17 23 30 MIN. QNH PRESSURE IN HPA 1008.7 1007.7 1000.2 1001.0 1005.7 999.8 999.9 1000.9 1005.5 1009.0 1008.0 1004.2 999.8 DAY 3 2 28 16 25 13 5 29 8 15 30 18 MEAN QFF PRESSURE IN HPA 1018.2 1016.6 1015.5 1013.7 1015.2 1009.6 1006.9 1006.9 1013.3 1019.0 1023.8 1016.0 1014.6 MAX. QFF PRESSURE IN HPA 1025.4 1025.4 1028.3 1024.9 1024.6 1015.2 1016.0 1013.2 1020.4 1028.4 1031.8 1029.4 1031.8 DAY 17 6 2 5 18 17 7 31 21 17 23 30 MIN. QFF PRESSURE IN HPA 1009.0 1008.0 1000.5 1001.4 1006.1 1000.2 1000.3 1001.3 1005.9 1009.3 1008.2 1004.5 1000.2 DAY 3 2 28 16 25 13 5 29 8 15 30 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1966 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1021.0 1019.6 1018.2 1016.1 1017.6 1011.6 1008.7 1008.9 1015.7 1021.7 1026.6 1019.1 1017.1 MAX. QFE PRESSURE IN HPA 1028.4 1029.0 1030.9 1027.6 1027.2 1017.0 1018.4 1017.0 1022.3 1031.0 1034.6 1032.0 1034.6 DAY 31 6 2 4 17 17 7 31 21 17 23 29 MIN. QFE PRESSURE IN HPA 1010.8 1009.5 1003.2 1003.5 1006.9 1004.3 1002.1 1003.7 1007.4 1011.8 1010.8 1008.5 1002.1 DAY 26 2 28 16 3 10 16 30 8 15 30 18 MEAN QNH PRESSURE IN HPA 1018.1 1016.8 1015.4 1013.2 1014.7 1008.8 1005.9 1006.1 1012.9 1018.8 1023.8 1016.3 1014.2 MAX. QNH PRESSURE IN HPA 1025.5 1026.1 1028.0 1024.8 1024.4 1014.2 1015.6 1014.2 1019.5 1028.1 1031.7 1029.1 1031.7 DAY 31 6 2 4 17 17 7 31 21 17 23 29 MIN. QNH PRESSURE IN HPA 1008.0 1006.7 1000.4 1000.7 1004.1 1001.5 999.3 1000.9 1004.6 1009.0 1008.0 1005.7 999.3 DAY 26 2 28 16 3 10 16 30 8 15 30 18 MEAN QFF PRESSURE IN HPA 1018.4 1017.0 1015.6 1013.5 1015.1 1009.2 1006.3 1006.5 1013.2 1019.2 1024.1 1016.5 1014.5 MAX. QFF PRESSURE IN HPA 1025.8 1026.4 1028.3 1025.0 1024.7 1014.5 1015.9 1014.6 1019.8 1028.4 1032.0 1029.4 1032.0 DAY 31 6 2 4 17 17 7 31 21 17 23 30 MIN. QFF PRESSURE IN HPA 1008.3 1007.0 1000.7 1001.0 1004.4 1001.9 999.7 1001.3 1005.0 1009.3 1008.2 1006.0 999.7 DAY 26 2 28 16 3 13 16 30 8 15 30 18 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1021.4 1019.9 1018.6 1016.4 1018.3 1012.2 1009.5 1009.7 1016.3 1022.0 1026.8 1019.6 1017.6 MAX. QFE PRESSURE IN HPA 1029.4 1029.0 1030.9 1029.0 1028.9 1018.1 1019.5 1018.8 1023.0 1031.0 1034.8 1033.0 1034.8 DAY 31 6 2 4 17 2 7 31 15 17 23 29 MIN. QFE PRESSURE IN HPA 1009.7 1009.8 1003.5 1003.1 1007.6 1004.3 1002.0 1004.6 1007.1 1011.8 1011.6 1007.2 1002.0 DAY 26 2 19 16 3 10 4 28 10 15 30 11 MEAN QNH PRESSURE IN HPA 1018.5 1017.1 1015.7 1013.6 1015.4 1009.4 1006.7 1006.9 1013.5 1019.2 1024.0 1016.8 1014.7 MAX. QNH PRESSURE IN HPA 1026.5 1026.1 1028.0 1026.1 1026.0 1015.3 1016.7 1016.0 1020.2 1028.1 1031.9 1030.1 1031.9 DAY 31 6 2 4 17 2 7 31 15 17 23 29 MIN. QNH PRESSURE IN HPA 1006.9 1007.0 1000.7 1000.3 1004.8 1001.5 999.2 1001.8 1004.3 1009.0 1008.8 1004.4 999.2 DAY 26 2 19 16 3 10 4 28 10 15 30 11 MEAN QFF PRESSURE IN HPA 1018.8 1017.4 1016.0 1013.9 1015.8 1009.8 1007.1 1007.3 1013.9 1019.5 1024.3 1017.0 1015.1 MAX. QFF PRESSURE IN HPA 1026.8 1026.4 1028.3 1026.4 1026.4 1015.7 1017.1 1016.4 1020.5 1028.4 1032.2 1030.4 1032.2 DAY 31 6 2 4 17 2 7 31 15 17 23 29 MIN. QFF PRESSURE IN HPA 1007.2 1007.2 1001.0 1000.7 1005.1 1001.9 999.6 1002.2 1004.7 1009.3 1009.0 1004.7 999.6 DAY 26 2 19 16 3 10 4 28 10 15 30 11 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1021.1 1019.5 1018.4 1016.2 1017.5 1012.3 1009.4 1009.7 1016.4 1021.8 1026.6 1019.4 1017.4 MAX. QFE PRESSURE IN HPA 1028.4 1028.5 1030.6 1029.0 1028.4 1018.5 1019.1 1019.3 1023.0 1030.3 1034.7 1033.0 1034.7 DAY 31 22 2 4 17 2 7 31 15 17 22 29 MIN. QFE PRESSURE IN HPA 1008.3 1009.8 1002.2 1003.9 1006.8 1005.0 1002.0 1003.4 1007.6 1011.8 1013.3 1006.5 1002.0 DAY 26 2 19 16 3 12 4 28 10 15 30 11 MEAN QNH PRESSURE IN HPA 1018.2 1016.6 1015.6 1013.4 1014.6 1009.5 1006.6 1006.9 1013.6 1019.0 1023.8 1016.6 1014.5 MAX. QNH PRESSURE IN HPA 1025.5 1025.6 1027.7 1026.1 1025.5 1015.7 1016.3 1016.5 1020.2 1027.4 1031.8 1030.1 1031.8 DAY 31 22 2 4 17 2 7 31 15 17 22 29 MIN. QNH PRESSURE IN HPA 1005.5 1007.0 999.4 1001.1 1004.0 1002.2 999.2 1000.6 1004.8 1009.0 1010.5 1003.7 999.2 DAY 26 2 19 16 3 12 4 28 10 15 30 11 MEAN QFF PRESSURE IN HPA 1018.5 1016.9 1015.8 1013.7 1015.0 1009.9 1007.0 1007.4 1014.0 1019.3 1024.1 1016.9 1014.9 MAX. QFF PRESSURE IN HPA 1025.8 1025.9 1028.0 1026.4 1025.9 1016.1 1016.6 1016.9 1020.5 1027.7 1032.1 1030.4 1032.1 DAY 31 22 2 4 17 2 7 31 15 17 22 29 MIN. QFF PRESSURE IN HPA 1005.8 1007.2 999.7 1001.5 1004.4 1002.6 999.6 1001.0 1005.2 1009.3 1010.8 1004.0 999.6 DAY 26 2 19 16 3 12 4 28 10 15 30 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.1 6.5 9.7 13.1 19.5 22.1 24.8 26.0 22.4 18.3 14.6 9.1 16.2 MINIMUN AIR TEMPERATURE (C) 3.6 3.1 6.5 10.0 15.4 18.0 21.2 21.8 19.2 14.5 11.2 4.7 12.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 6 21 23 10 0 0 0 60 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 4 5 1 0 0 0 0 0 0 0 0 6 16 TEMPERATURE RECORDS LOWEST(C) 0.0 -3.0 0.0 2.0 12.0 9.0 19.0 19.0 13.0 9.0 3.0 0.0 -3.0 DAY 6 4 2 2 1 6 4 11 26 16 29 2 MAXIMUM AIR TEMPERATURE (C) 14.0 10.3 13.9 16.9 23.7 26.4 29.0 30.7 26.5 22.8 19.3 14.7 20.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 1 10 29 3 0 0 0 43 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 21.0 17.0 23.0 26.0 28.0 31.0 32.0 32.0 30.0 28.0 24.0 20.0 32.0 DAY 14 23 4 20 13 3 7 2 1 11 1 6 DIF. BETWEEN (MAX.-MIN.) (C) 10.4 7.2 7.4 6.9 8.3 8.4 7.8 8.9 7.3 8.3 8.1 10.0 8.3 MEAN DAILY TEMP. (MDT) (C) 8.8 6.7 10.2 13.5 19.5 22.2 25.1 26.2 22.9 18.7 15.2 9.7 16.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 8.5 51.0 126.0 162.5 65.0 1.0 0.0 0.0 414.0 HEATING DEG. DAYS(BASE 18 0C) 284.5 315.5 243.0 140.5 6.0 3.5 0.0 0.0 0.0 18.5 90.0 256.5 1358.0 DEWPOINT (MEAN C) 5.2 3.4 6.6 9.9 15.3 17.0 20.1 21.4 18.8 15.4 12.2 6.6 12.7 MIXING RATIO (G/KG) 5.58 4.91 6.11 7.71 10.94 12.27 14.90 16.20 13.67 10.95 8.99 6.18 9.87 VAPOUR PRESSURE (HPA) 9.06 7.99 9.89 12.42 17.55 19.59 23.65 25.65 21.82 17.66 14.52 10.01 15.82 SATURATION DEF. (HPA) 2.15 1.93 2.39 3.03 5.56 7.54 7.98 8.47 5.73 3.79 2.61 1.94 4.43 RELATIVE HUMIDITY (MEAN %) 83 82 82 83 78 75 77 77 81 84 87 86 81 RELATIVE HUMIDITY (MAX. %) 96 95 94 95 94 92 92 93 95 97 97 96 95 RELATIVE HUMIDITY (MIN. %) 62 65 68 68 60 56 61 60 64 65 69 68 64 RELATIVE HUMIDITY (MEAN% 03UTC) 93 91 92 92 91 86 87 91 93 96 95 94 92 RELATIVE HUMIDITY (MEAN% 09UTC) 65 69 70 72 65 60 63 61 67 68 71 70 67 RELATIVE HUMIDITY (MEAN% 15UTC) 83 76 80 78 71 68 70 71 75 80 86 86 77 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 115.1 91.6 79.6 27.6 6.6 39.3 13.4 6.3 141.8 157.3 146.5 156.0 981.1 DAYS WITH PRECIPITATION >=10 3 3 4 1 0 1 1 0 4 6 4 3 30 DAYS WITH PRECIPITATION >= 5 3 7 5 2 0 2 1 0 5 7 4 5 41 DAYS WITH PRECIPITATION >= 1 4 12 8 5 2 3 3 3 8 8 9 6 71 DAYS WITH PRECIPITATION 5 12 9 7 5 4 4 5 12 8 11 7 89 GREATEST DAILY PRECIPITATION 58.0 28.0 27.0 14.0 4.0 32.0 11.0 3.0 47.0 53.0 65.0 90.0 90.0 DAY 21 2 24 14 18 5 28 13 24 22 30 24 DAY WITH THUNDER STORM 0 0 0 1 2 0 2 0 2 3 0 0 10 DAYS WITH SNOW OR SLEET 0 2 0 0 0 0 0 0 0 0 0 1 3 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 90 90 45 45 315 315 270 315 225 45 180 180 270 PREVAILING WIND SPEED(KNOTS) 4.8 5.8 6.1 6.7 5.9 6.6 6.2 6.3 4.0 6.0 3.3 3.3 7.0 PREVAILING WIND PERCENT 12.5 17.9 15.7 16.3 13.3 17.1 28.2 19.8 14.2 9.7 12.1 12.1 10.4 CALMS PERCENT OF WIND 37.5 39.3 30.6 37.5 40.3 30.8 35.1 35.5 42.9 43.1 41.3 52.4 38.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 95 73 350 8 327 318 284 297 298 17 152 131 320 VECTOR WIND MAGNITUDE(KNOTS) 0.4 0.9 1.3 1.0 1.5 2.0 2.9 2.1 1.1 0.3 0.1 0.3 0.8 WIND STEADINESES (MEAN %) 14.3 25.7 30.2 27.8 48.4 50.0 82.9 61.8 36.7 11.5 3.6 14.3 25.0 WIND SPEED (MEAN KNOTS) 2.8 3.5 4.3 3.6 3.1 4.0 3.5 3.4 3.0 2.6 2.8 2.1 3.2 FASTEST WIND DIRECTION 10 290 270 270 310 270 270 280 270 330 270 290 290 FASTEST WIND SPEED (KNOTS) 15 25 20 25 12 14 15 14 12 15 20 24 25 DAY 21 1 29 21 14 18 2 18 29 21 28 23 DAYS WITH SKY CLEAR (0-2)/8 16 8 9 5 13 16 11 19 10 15 10 14 146 DAYS WITH P.CLOUDY (3-6)/8 11 8 10 14 11 12 10 9 8 6 12 9 120 DAYS WITH CLOUDY (7-8)/8 4 12 12 11 7 2 10 3 12 10 8 8 99 DAYS WITH VISIBILITY =< 2 KM 1 2 2 0 1 1 0 0 0 1 0 3 11 DURATION OF SUNSHINE HOURS 176.5 124.4 167.2 151.3 198.9 250.9 201.8 267.5 125.3 160.9 146.1 166.6 2137.4 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1020.9 1022.7 1017.7 1016.1 1016.2 1013.7 1011.1 1010.5 1015.4 1021.3 1020.2 1018.4 1017.0 MAX. QFE PRESSURE IN HPA 1032.1 1038.4 1032.0 1029.2 1025.8 1024.0 1018.9 1015.9 1027.6 1032.1 1032.5 1031.5 1038.4 DAY-HOUR 26- 6 3- 6 1- 0 9- 9 3- 6 5-18 22-18 15- 6 24-18 15- 6 30- 6 1- 0 MIN. QFE PRESSURE IN HPA 1007.7 1001.4 1005.0 998.8 1004.5 1000.0 1006.3 1005.5 1005.8 1009.2 1009.0 1000.9 998.8 DAY-HOUR 15-12 24- 3 17- 9 25- 9 27-15 22-18 8-15 20-12 17-12 11- 0 25- 0 22-21 MEAN QNH PRESSURE IN HPA 1018.1 1019.8 1014.9 1013.3 1013.3 1010.9 1008.3 1007.7 1012.5 1018.5 1017.3 1015.6 1014.2 MAX. QNH PRESSURE IN HPA 1029.2 1035.5 1029.1 1026.3 1023.0 1021.2 1016.1 1013.1 1024.8 1029.2 1029.6 1028.6 1035.5 DAY-HOUR 26- 6 3- 6 1- 0 9- 9 3- 6 5-18 22-18 15- 6 24-18 15- 6 30- 6 1- 0 MIN. QNH PRESSURE IN HPA 1004.9 998.6 1002.2 996.0 1001.7 997.2 1003.5 1002.7 1003.0 1006.4 1006.2 998.1 996.0 DAY-HOUR 15-12 24- 3 17- 9 25- 9 27-15 22-18 8-15 20-12 17-12 11- 0 25- 0 22-21 MEAN QFF PRESSURE IN HPA 1018.3 1020.1 1015.2 1013.6 1013.7 1011.2 1008.7 1008.1 1012.9 1018.8 1017.6 1015.9 1014.5 MAX. QFF PRESSURE IN HPA 1029.5 1035.7 1029.4 1026.6 1023.3 1021.5 1016.5 1013.5 1025.1 1029.6 1029.9 1028.9 1035.7 DAY-HOUR 26- 9 3- 6 1- 6 9- 9 3- 6 5-18 22-18 15- 6 24-18 15- 6 30- 6 12- 6 MIN. QFF PRESSURE IN HPA 1005.2 998.9 1002.5 996.4 1002.1 997.6 1003.9 1003.1 1003.4 1006.7 1006.5 998.4 996.4 DAY-HOUR 15-12 24- 3 17- 9 25- 9 27-15 22-18 8-15 20-15 17-12 11- 0 25- 0 23- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1021.1 1022.1 1017.5 1015.8 1015.8 1013.5 1011.0 1010.3 1015.3 1020.7 1019.7 1018.7 1016.8 MAX. QFE PRESSURE IN HPA 1030.5 1036.7 1032.0 1027.4 1024.5 1021.3 1017.3 1015.0 1026.2 1030.6 1029.1 1031.5 1036.7 DAY 1 3 1 13 3 6 23 15 25 15 30 1 MIN. QFE PRESSURE IN HPA 1010.1 1002.4 1006.0 1000.1 1007.0 1005.0 1006.5 1006.8 1005.9 1009.2 1009.0 1000.9 1000.1 DAY 16 24 17 25 27 23 5 20 18 11 25 23 MEAN QNH PRESSURE IN HPA 1018.2 1019.3 1014.7 1013.0 1012.9 1010.7 1008.2 1007.5 1012.5 1017.9 1016.8 1015.9 1014.0 MAX. QNH PRESSURE IN HPA 1027.6 1033.8 1029.1 1024.6 1021.7 1018.5 1014.5 1012.2 1023.4 1027.7 1026.2 1028.6 1033.8 DAY 1 3 1 13 3 6 23 15 25 15 30 1 MIN. QNH PRESSURE IN HPA 1007.3 999.6 1003.2 997.3 1004.2 1002.2 1003.7 1004.0 1003.1 1006.4 1006.2 998.1 997.3 DAY 16 24 17 25 27 23 5 20 18 11 25 23 MEAN QFF PRESSURE IN HPA 1018.5 1019.5 1014.9 1013.3 1013.3 1011.1 1008.6 1007.9 1012.9 1018.2 1017.1 1016.2 1014.3 MAX. QFF PRESSURE IN HPA 1027.9 1034.0 1029.4 1024.8 1022.0 1018.7 1014.9 1012.6 1023.7 1028.1 1026.5 1028.9 1034.0 DAY 1 3 1 13 3 6 23 15 25 15 30 1 MIN. QFF PRESSURE IN HPA 1007.6 999.9 1003.5 997.6 1004.6 1002.6 1004.1 1004.4 1003.5 1006.7 1006.5 998.4 997.6 DAY 19 24 17 25 27 23 5 20 18 11 25 23 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1021.3 1022.5 1017.8 1016.3 1016.2 1014.2 1011.6 1011.0 1015.9 1021.2 1020.1 1018.8 1017.2 MAX. QFE PRESSURE IN HPA 1031.0 1037.2 1031.6 1027.5 1024.1 1021.3 1018.4 1015.5 1026.2 1030.6 1029.6 1030.4 1037.2 DAY 1 3 1 1 3 6 23 15 25 15 30 12 MIN. QFE PRESSURE IN HPA 1010.0 1001.4 1005.3 1002.4 1007.0 1007.0 1007.2 1007.1 1006.4 1010.0 1009.7 1001.2 1001.2 DAY 15 24 17 25 27 23 10 20 18 11 23 23 MEAN QNH PRESSURE IN HPA 1018.5 1019.7 1015.0 1013.5 1013.4 1011.4 1008.7 1008.1 1013.1 1018.4 1017.3 1015.9 1014.4 MAX. QNH PRESSURE IN HPA 1028.1 1034.3 1028.7 1024.7 1021.3 1018.5 1015.6 1012.7 1023.4 1027.7 1026.7 1027.5 1034.3 DAY 1 3 1 1 3 6 23 15 25 15 30 12 MIN. QNH PRESSURE IN HPA 1007.2 998.6 1002.5 999.6 1004.2 1004.2 1004.4 1004.3 1003.6 1007.2 1006.9 998.4 998.4 DAY 15 24 17 25 27 23 10 20 18 11 23 23 MEAN QFF PRESSURE IN HPA 1018.7 1019.9 1015.3 1013.8 1013.7 1011.8 1009.1 1008.5 1013.4 1018.7 1017.6 1016.2 1014.7 MAX. QFF PRESSURE IN HPA 1028.4 1034.5 1028.9 1024.9 1021.6 1018.7 1016.0 1013.1 1023.7 1028.0 1027.0 1027.8 1034.5 DAY 1 3 1 9 3 26 23 15 25 15 30 12 MIN. QFF PRESSURE IN HPA 1007.5 998.9 1002.7 999.9 1004.6 1004.6 1004.8 1004.7 1004.0 1007.5 1007.2 998.7 998.7 DAY 15 24 17 25 27 23 10 20 18 11 23 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.4 1023.5 1018.7 1017.2 1016.7 1014.5 1011.8 1011.5 1016.3 1022.2 1021.1 1019.7 1018.0 MAX. QFE PRESSURE IN HPA 1032.1 1038.4 1032.0 1029.0 1025.8 1021.3 1018.8 1015.9 1026.2 1032.1 1032.5 1031.5 1038.4 DAY 26 3 1 9 3 6 22 15 25 15 30 12 MIN. QFE PRESSURE IN HPA 1011.8 1002.7 1006.2 1001.6 1006.8 1007.9 1007.2 1007.2 1007.3 1009.9 1011.1 1006.2 1001.6 DAY 15 24 17 25 27 23 10 20 18 11 23 23 MEAN QNH PRESSURE IN HPA 1019.5 1020.7 1015.9 1014.3 1013.9 1011.7 1009.0 1008.7 1013.5 1019.4 1018.3 1016.8 1015.1 MAX. QNH PRESSURE IN HPA 1029.2 1035.5 1029.1 1026.1 1023.0 1018.5 1016.0 1013.1 1023.4 1029.2 1029.6 1028.6 1035.5 DAY 26 3 1 9 3 6 22 15 25 15 30 12 MIN. QNH PRESSURE IN HPA 1009.0 999.9 1003.4 998.8 1004.0 1005.1 1004.4 1004.4 1004.5 1007.1 1008.3 1003.4 998.8 DAY 15 24 17 25 27 23 10 20 18 11 23 23 MEAN QFF PRESSURE IN HPA 1019.8 1020.9 1016.2 1014.6 1014.2 1012.1 1009.4 1009.1 1013.9 1019.7 1018.6 1017.1 1015.5 MAX. QFF PRESSURE IN HPA 1029.5 1035.7 1029.4 1026.4 1023.3 1018.8 1016.4 1013.5 1023.7 1029.6 1029.9 1028.9 1035.7 DAY 26 3 1 9 3 6 22 15 25 15 30 12 MIN. QFF PRESSURE IN HPA 1009.3 1000.2 1003.7 999.1 1004.4 1005.5 1004.8 1004.8 1004.9 1007.5 1008.6 1003.7 999.1 DAY 15 24 17 25 27 23 10 20 18 11 23 23 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1021.0 1022.8 1018.0 1016.6 1016.7 1014.2 1011.5 1011.0 1015.2 1021.6 1020.1 1018.3 1017.2 MAX. QFE PRESSURE IN HPA 1032.1 1037.2 1030.4 1029.2 1025.8 1020.5 1018.8 1015.8 1025.3 1030.9 1031.5 1030.4 1037.2 DAY 26 3 1 9 3 26 22 15 24 15 30 12 MIN. QFE PRESSURE IN HPA 1008.7 1004.2 1005.0 998.8 1006.7 1006.4 1006.8 1006.1 1007.2 1009.2 1011.2 1006.2 998.8 DAY 15 24 17 25 28 3 10 20 17 11 22 23 MEAN QNH PRESSURE IN HPA 1018.2 1020.0 1015.2 1013.7 1013.8 1011.4 1008.7 1008.1 1012.4 1018.7 1017.3 1015.4 1014.4 MAX. QNH PRESSURE IN HPA 1029.2 1034.3 1027.5 1026.3 1023.0 1017.7 1016.0 1013.0 1022.5 1028.0 1028.6 1027.5 1034.3 DAY 26 3 1 9 3 26 22 15 24 15 30 12 MIN. QNH PRESSURE IN HPA 1005.9 1001.4 1002.2 996.0 1003.9 1003.6 1004.0 1003.3 1004.4 1006.4 1008.4 1003.4 996.0 DAY 15 24 17 25 28 3 10 20 17 11 22 23 MEAN QFF PRESSURE IN HPA 1018.4 1020.2 1015.4 1014.0 1014.2 1011.8 1009.1 1008.6 1012.8 1019.1 1017.6 1015.7 1014.7 MAX. QFF PRESSURE IN HPA 1029.5 1034.5 1027.8 1026.6 1023.3 1018.1 1016.4 1013.4 1022.8 1028.4 1028.9 1027.8 1034.5 DAY 26 3 1 9 3 26 22 15 24 15 30 12 MIN. QFF PRESSURE IN HPA 1006.2 1001.7 1002.5 996.4 1004.3 1004.0 1004.4 1003.7 1004.8 1006.8 1008.7 1003.7 996.4 DAY 15 24 17 25 28 3 10 20 17 11 22 23 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1020.0 1022.1 1016.9 1015.6 1015.8 1013.3 1010.5 1009.9 1014.6 1021.0 1019.6 1017.5 1016.4 MAX. QFE PRESSURE IN HPA 1030.7 1036.1 1027.7 1028.6 1023.8 1021.8 1018.4 1014.5 1025.7 1029.5 1031.1 1028.3 1036.1 DAY 26 3 1 9 9 5 22 15 24 15 30 12 MIN. QFE PRESSURE IN HPA 1007.7 1008.2 1005.8 999.6 1005.2 1003.3 1006.3 1005.5 1005.8 1009.4 1009.9 1005.3 999.6 DAY 15 24 17 25 27 22 10 20 17 11 22 3 MEAN QNH PRESSURE IN HPA 1017.2 1019.2 1014.1 1012.8 1013.0 1010.5 1007.7 1007.1 1011.8 1018.2 1016.7 1014.7 1013.6 MAX. QNH PRESSURE IN HPA 1027.8 1033.2 1024.9 1025.7 1021.0 1019.0 1015.6 1011.7 1022.9 1026.6 1028.2 1025.4 1033.2 DAY 26 3 1 9 9 5 22 15 24 15 30 12 MIN. QNH PRESSURE IN HPA 1004.9 1005.4 1003.0 996.8 1002.4 1000.5 1003.5 1002.7 1003.0 1006.6 1007.1 1002.5 996.8 DAY 15 24 17 25 27 22 10 20 17 11 22 3 MEAN QFF PRESSURE IN HPA 1017.4 1019.5 1014.4 1013.1 1013.3 1010.8 1008.1 1007.5 1012.2 1018.5 1017.0 1014.9 1013.9 MAX. QFF PRESSURE IN HPA 1028.1 1033.4 1025.1 1026.0 1021.3 1019.3 1016.0 1012.1 1023.2 1027.0 1028.5 1025.7 1033.4 DAY 26 3 1 9 9 5 22 15 24 15 30 12 MIN. QFF PRESSURE IN HPA 1005.2 1005.7 1003.3 997.1 1002.8 1000.9 1003.9 1003.1 1003.4 1007.0 1007.4 1002.8 997.1 DAY 15 24 17 25 27 22 10 20 17 11 22 3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1967 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1020.5 1022.5 1017.2 1015.5 1015.6 1013.0 1010.2 1009.6 1014.7 1021.2 1020.1 1018.0 1016.5 MAX. QFE PRESSURE IN HPA 1030.4 1035.9 1027.6 1028.0 1023.3 1023.2 1018.2 1014.5 1026.6 1030.4 1031.1 1028.0 1035.9 DAY 26 3 30 12 15 5 22 15 24 14 30 11 MIN. QFE PRESSURE IN HPA 1008.3 1008.4 1005.9 1002.2 1004.5 1001.5 1006.3 1005.5 1005.9 1010.0 1010.9 1004.1 1001.5 DAY 15 23 5 21 27 22 8 20 17 11 22 22 MEAN QNH PRESSURE IN HPA 1017.7 1019.7 1014.3 1012.7 1012.8 1010.2 1007.4 1006.8 1011.9 1018.3 1017.3 1015.2 1013.7 MAX. QNH PRESSURE IN HPA 1027.5 1033.0 1024.8 1025.1 1020.5 1020.4 1015.4 1011.7 1023.8 1027.5 1028.2 1025.1 1033.0 DAY 26 3 30 12 15 5 22 15 24 14 30 11 MIN. QNH PRESSURE IN HPA 1005.5 1005.6 1003.1 999.4 1001.7 998.7 1003.5 1002.7 1003.1 1007.2 1008.1 1001.3 998.7 DAY 15 23 5 21 27 22 8 20 17 11 22 22 MEAN QFF PRESSURE IN HPA 1017.9 1019.9 1014.6 1013.0 1013.1 1010.6 1007.8 1007.2 1012.3 1018.7 1017.6 1015.4 1014.0 MAX. QFF PRESSURE IN HPA 1027.8 1033.2 1025.0 1025.4 1020.8 1020.7 1015.8 1012.1 1024.1 1027.9 1028.5 1025.4 1033.2 DAY 26 3 30 12 15 5 22 15 24 14 30 11 MIN. QFF PRESSURE IN HPA 1005.8 1005.8 1003.4 999.7 1002.1 999.1 1003.9 1003.1 1003.5 1007.5 1008.4 1001.5 999.1 DAY 15 23 5 25 27 22 8 20 17 11 22 22 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1020.7 1023.1 1017.9 1016.3 1016.5 1013.5 1011.1 1010.3 1015.5 1021.7 1020.6 1018.4 1017.1 MAX. QFE PRESSURE IN HPA 1029.7 1036.7 1028.4 1028.2 1024.3 1024.0 1018.9 1014.9 1027.6 1031.5 1031.9 1029.1 1036.7 DAY 1 27 11 9 2 5 22 15 24 14 30 11 MIN. QFE PRESSURE IN HPA 1008.0 1007.1 1007.4 1003.4 1007.0 1000.0 1006.7 1006.0 1005.9 1010.0 1011.8 1002.4 1000.0 DAY 15 23 5 24 27 22 10 20 17 11 22 22 MEAN QNH PRESSURE IN HPA 1017.8 1020.3 1015.1 1013.5 1013.6 1010.7 1008.3 1007.5 1012.7 1018.8 1017.7 1015.6 1014.3 MAX. QNH PRESSURE IN HPA 1026.8 1033.8 1025.5 1025.3 1021.5 1021.2 1016.1 1012.1 1024.8 1028.6 1029.0 1026.2 1033.8 DAY 1 27 11 9 2 5 22 15 24 14 30 11 MIN. QNH PRESSURE IN HPA 1005.2 1004.3 1004.6 1000.6 1004.2 997.2 1003.9 1003.2 1003.1 1007.2 1009.0 999.6 997.2 DAY 15 23 5 24 27 22 10 20 17 11 22 22 MEAN QFF PRESSURE IN HPA 1018.1 1020.5 1015.4 1013.8 1014.0 1011.1 1008.7 1007.9 1013.1 1019.2 1018.0 1015.8 1014.6 MAX. QFF PRESSURE IN HPA 1027.1 1034.0 1025.8 1025.6 1021.8 1021.5 1016.5 1012.5 1025.1 1029.0 1029.3 1026.5 1034.0 DAY 1 27 11 9 2 5 22 15 24 14 30 11 MIN. QFF PRESSURE IN HPA 1005.5 1004.6 1004.9 1000.9 1004.6 997.6 1004.3 1003.6 1003.5 1007.6 1009.3 999.9 997.6 DAY 15 23 5 24 27 22 10 20 17 11 22 22 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1020.4 1022.9 1017.8 1015.9 1016.2 1013.4 1011.2 1010.3 1015.5 1021.3 1020.2 1018.3 1016.9 MAX. QFE PRESSURE IN HPA 1029.5 1036.2 1028.4 1027.8 1024.5 1024.0 1018.6 1015.0 1027.6 1031.5 1032.1 1029.3 1036.2 DAY 1 27 11 12 2 5 22 14 24 14 30 11 MIN. QFE PRESSURE IN HPA 1008.3 1005.6 1007.7 1002.4 1007.2 1001.8 1007.0 1006.2 1005.9 1010.4 1010.0 1000.9 1000.9 DAY 15 23 16 24 26 22 4 17 17 11 24 22 MEAN QNH PRESSURE IN HPA 1017.6 1020.1 1015.0 1013.1 1013.4 1010.6 1008.4 1007.5 1012.6 1018.4 1017.4 1015.5 1014.1 MAX. QNH PRESSURE IN HPA 1026.6 1033.3 1025.5 1024.9 1021.7 1021.2 1015.8 1012.2 1024.8 1028.6 1029.2 1026.4 1033.3 DAY 1 27 11 12 2 5 22 14 24 14 30 11 MIN. QNH PRESSURE IN HPA 1005.5 1002.8 1004.9 999.6 1004.4 999.0 1004.2 1003.4 1003.1 1007.6 1007.2 998.1 998.1 DAY 15 23 16 24 26 22 4 17 17 11 24 22 MEAN QFF PRESSURE IN HPA 1017.8 1020.3 1015.3 1013.3 1013.7 1010.9 1008.8 1007.9 1013.0 1018.8 1017.7 1015.7 1014.4 MAX. QFF PRESSURE IN HPA 1026.9 1033.5 1025.8 1025.2 1022.0 1021.4 1016.2 1012.6 1025.1 1029.0 1029.5 1026.7 1033.5 DAY 1 27 11 12 2 5 22 14 24 14 30 11 MIN. QFF PRESSURE IN HPA 1005.8 1003.1 1005.2 999.9 1004.8 999.4 1004.6 1003.8 1003.5 1008.0 1007.5 998.4 998.4 DAY 15 23 16 24 26 22 4 17 17 11 24 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 8.4 7.7 9.6 12.8 20.3 21.8 25.0 25.2 23.7 19.7 14.2 10.0 16.5 MINIMUN AIR TEMPERATURE (C) 4.5 4.7 6.8 10.3 16.0 18.1 20.9 22.1 19.0 15.8 11.4 6.9 13.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 5 23 24 10 1 0 0 64 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 2 3 0 0 0 0 0 0 0 0 0 0 5 TEMPERATURE RECORDS LOWEST(C) 0.0 -2.0 3.0 7.0 10.0 14.0 15.0 19.0 14.0 7.0 6.0 1.0 -2.0 DAY 20 9 19 1 1 10 13 25 21 28 23 23 MAXIMUM AIR TEMPERATURE (C) 13.9 11.7 13.5 15.8 24.6 25.4 29.1 29.4 28.9 24.7 18.5 14.3 20.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 2 16 18 10 0 0 0 46 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 22.0 23.0 26.0 22.0 29.0 30.0 33.0 32.0 34.0 29.0 25.0 19.0 34.0 DAY 15 27 13 30 20 28 31 1 27 1 14 1 DIF. BETWEEN (MAX.-MIN.) (C) 9.4 7.0 6.7 5.5 8.6 7.3 8.2 7.3 9.9 8.9 7.1 7.4 7.8 MEAN DAILY TEMP. (MDT) (C) 9.2 8.2 10.1 13.0 20.3 21.8 25.0 25.7 24.0 20.3 14.9 10.6 16.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 18.5 44.5 125.0 146.5 89.5 20.0 0.0 0.0 444.0 HEATING DEG. DAYS(BASE 18 0C) 272.0 285.5 245.5 149.5 2.5 2.5 0.0 0.0 0.0 18.0 93.5 230.5 1299.5 DEWPOINT (MEAN C) 5.2 5.0 7.0 10.5 16.0 17.4 20.7 21.6 19.4 16.2 12.3 8.1 13.3 MIXING RATIO (G/KG) 5.58 5.48 6.22 7.85 11.48 12.58 15.57 16.31 14.22 11.62 8.89 6.75 10.21 VAPOUR PRESSURE (HPA) 9.01 8.92 10.09 12.72 18.43 20.09 24.69 25.82 22.65 18.69 14.40 10.95 16.37 SATURATION DEF. (HPA) 2.38 1.85 2.04 2.21 5.78 6.46 7.40 6.62 7.30 4.91 2.01 1.52 4.21 RELATIVE HUMIDITY (MEAN %) 82 85 85 87 78 78 79 82 78 81 89 89 83 RELATIVE HUMIDITY (MAX. %) 95 96 96 96 93 93 93 94 93 95 97 97 95 RELATIVE HUMIDITY (MIN. %) 62 68 69 73 60 62 62 66 59 63 75 75 66 RELATIVE HUMIDITY (MEAN% 03UTC) 89 94 93 95 90 88 91 92 91 94 96 96 92 RELATIVE HUMIDITY (MEAN% 09UTC) 68 72 74 77 62 67 65 70 62 66 78 76 70 RELATIVE HUMIDITY (MEAN% 15UTC) 83 82 82 83 73 70 72 74 72 77 89 89 79 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 89.5 90.3 75.3 99.0 25.0 16.1 55.0 48.5 9.0 138.3 178.4 111.3 935.7 DAYS WITH PRECIPITATION >=10 4 4 3 3 1 0 1 1 0 2 7 6 32 DAYS WITH PRECIPITATION >= 5 5 6 4 6 3 1 2 4 1 2 8 7 49 DAYS WITH PRECIPITATION >= 1 8 7 10 9 4 4 3 8 3 4 10 11 81 DAYS WITH PRECIPITATION 9 7 11 10 5 7 3 8 4 5 12 16 97 GREATEST DAILY PRECIPITATION 31.0 24.0 31.0 29.0 11.5 6.0 45.0 14.0 7.0 93.0 51.0 34.0 93.0 DAY 23 4 23 25 30 1 12 10 13 27 18 13 DAY WITH THUNDER STORM 1 0 0 0 0 0 0 0 0 4 0 2 7 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 0 1 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 90 90 45 270 270 315 225 270 45 45 225 90 270 PREVAILING WIND SPEED(KNOTS) 5.4 5.0 6.0 7.1 6.3 5.9 3.1 6.4 4.9 6.5 3.3 4.6 6.9 PREVAILING WIND PERCENT 11.3 13.8 13.3 21.3 20.2 18.3 14.1 16.1 11.7 13.3 11.7 12.9 11.4 CALMS PERCENT OF WIND 41.9 49.6 41.5 39.2 40.3 36.3 37.9 39.1 52.5 47.6 49.6 59.7 44.6 NO. OF WIND OBSERVATION 248 232 248 240 248 240 248 248 240 248 240 248 2928 VECTOR WIND DIRECTION (MEAN) 296 9 338 305 304 327 307 289 323 43 262 127 317 VECTOR WIND MAGNITUDE(KNOTS) 0.5 0.7 1.3 1.7 1.8 1.9 1.4 1.8 1.0 0.8 0.3 0.4 0.9 WIND STEADINESES (MEAN %) 13.9 21.2 37.1 50.0 56.2 57.6 45.2 58.1 41.7 29.6 13.6 21.1 30.0 WIND SPEED (MEAN KNOTS) 3.6 3.3 3.5 3.4 3.2 3.3 3.1 3.1 2.4 2.7 2.2 1.9 3.0 FASTEST WIND DIRECTION 330 300 270 270 280 350 280 290 280 30 300 30 270 FASTEST WIND SPEED (KNOTS) 25 25 28 17 12 10 12 15 12 18 18 15 28 DAY 10 3 22 4 29 5 23 17 28 27 17 5 DAYS WITH SKY CLEAR (0-2)/8 13 10 7 6 9 15 19 12 16 16 7 8 138 DAYS WITH P.CLOUDY (3-6)/8 9 6 8 11 14 8 7 9 10 11 9 9 111 DAYS WITH CLOUDY (7-8)/8 9 13 16 13 8 7 5 10 4 4 14 14 117 DAYS WITH VISIBILITY =< 2 KM 1 2 1 0 0 1 0 0 0 1 3 1 10 DURATION OF SUNSHINE HOURS 157.4 143.4 137.3 130.9 220.5 239.0 254.2 187.0 213.0 203.3 121.7 107.6 2115.3 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1015.4 1022.1 1020.6 1021.3 1017.5 1014.2 1011.8 1011.0 1014.4 1020.0 1022.5 1020.8 1017.6 MAX. QFE PRESSURE IN HPA 1029.4 1039.0 1037.2 1028.4 1025.0 1025.5 1020.8 1017.9 1022.7 1031.2 1033.2 1031.8 1039.0 DAY-HOUR 19- 6 5- 9 26- 6 6- 6 31-21 8- 6 12-12 27- 6 17- 6 27-18 21- 6 23- 6 MIN. QFE PRESSURE IN HPA 996.8 1007.2 998.0 1008.8 1006.4 1002.7 1003.8 1001.2 1007.5 1006.9 1013.6 1006.7 996.8 DAY-HOUR 10-12 21- 3 13- 0 23-21 20-15 18-21 31-15 16-21 9- 0 25- 3 29- 0 27- 3 MEAN QNH PRESSURE IN HPA 1012.5 1019.2 1017.8 1018.4 1014.7 1011.4 1009.0 1008.2 1011.5 1017.1 1019.7 1018.0 1014.8 MAX. QNH PRESSURE IN HPA 1026.5 1036.1 1034.3 1025.5 1022.2 1022.7 1018.0 1015.1 1019.9 1028.3 1030.3 1028.9 1036.1 DAY-HOUR 19- 6 5- 9 26- 6 6- 6 31-21 8- 6 12-12 27- 6 17- 6 27-18 21- 6 23- 6 MIN. QNH PRESSURE IN HPA 994.0 1004.4 995.2 1006.0 1003.6 999.9 1001.0 998.4 1004.7 1004.1 1010.8 1003.9 994.0 DAY-HOUR 10-12 21- 3 13- 0 23-21 20-15 18-21 31-15 16-21 9- 0 25- 3 29- 0 27- 3 MEAN QFF PRESSURE IN HPA 1012.8 1019.5 1018.0 1018.7 1015.0 1011.7 1009.4 1008.6 1011.9 1017.5 1020.0 1018.2 1015.1 MAX. QFF PRESSURE IN HPA 1026.8 1036.3 1034.6 1025.8 1022.5 1023.0 1018.3 1015.5 1020.3 1028.6 1030.6 1029.2 1036.3 DAY-HOUR 19-21 5- 9 26- 6 6- 9 31-21 8- 9 12-12 27- 6 17- 6 27-18 21- 6 23- 6 MIN. QFF PRESSURE IN HPA 994.3 1004.7 995.5 1006.3 1004.0 1000.3 1001.4 998.8 1005.1 1004.4 1011.1 1004.1 994.3 DAY-HOUR 10-12 21- 3 13- 0 23-21 20-15 18-21 31-15 17- 0 9- 0 25- 3 29- 0 27- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1015.2 1021.9 1019.9 1020.8 1017.0 1013.8 1011.6 1010.6 1014.0 1019.6 1022.3 1020.8 1017.3 MAX. QFE PRESSURE IN HPA 1029.4 1038.1 1035.7 1027.3 1024.6 1025.1 1019.9 1016.5 1021.4 1028.6 1032.7 1030.5 1038.1 DAY 20 6 26 1 23 8 13 27 18 16 22 23 MIN. QFE PRESSURE IN HPA 1002.5 1007.4 998.0 1008.8 1009.5 1004.1 1004.1 1001.2 1007.5 1007.4 1013.6 1008.2 998.0 DAY 7 21 13 24 20 19 31 17 9 25 29 11 MEAN QNH PRESSURE IN HPA 1012.3 1019.0 1017.0 1018.0 1014.1 1011.0 1008.8 1007.8 1011.2 1016.8 1019.5 1017.9 1014.5 MAX. QNH PRESSURE IN HPA 1026.5 1035.2 1032.8 1024.5 1021.8 1022.3 1017.1 1013.7 1018.6 1025.7 1029.8 1027.6 1035.2 DAY 20 6 26 1 23 8 13 27 18 16 22 23 MIN. QNH PRESSURE IN HPA 999.7 1004.6 995.2 1006.0 1006.7 1001.3 1001.3 998.4 1004.7 1004.6 1010.8 1005.4 995.2 DAY 7 21 13 24 20 19 31 17 9 25 29 11 MEAN QFF PRESSURE IN HPA 1012.6 1019.3 1017.3 1018.3 1014.5 1011.4 1009.2 1008.2 1011.6 1017.2 1019.8 1018.2 1014.8 MAX. QFF PRESSURE IN HPA 1026.8 1035.4 1033.1 1024.7 1022.1 1022.6 1017.4 1014.1 1018.9 1026.1 1030.1 1027.9 1035.4 DAY 20 6 26 7 23 8 13 27 18 16 22 23 MIN. QFF PRESSURE IN HPA 1000.0 1004.9 995.5 1006.3 1007.1 1001.7 1001.7 998.8 1005.1 1005.0 1011.1 1005.7 995.5 DAY 7 21 13 24 20 19 31 17 9 25 29 11 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1015.6 1022.1 1020.6 1021.3 1017.4 1014.6 1012.2 1011.5 1014.4 1020.2 1022.6 1020.7 1017.8 MAX. QFE PRESSURE IN HPA 1028.5 1038.1 1035.7 1027.7 1023.0 1025.1 1019.5 1017.0 1021.4 1029.1 1032.0 1030.5 1038.1 DAY 19 6 26 6 23 8 13 27 18 30 22 23 MIN. QFE PRESSURE IN HPA 1002.0 1007.2 998.6 1009.9 1009.5 1008.4 1005.8 1002.8 1008.0 1006.9 1015.9 1006.7 998.6 DAY 7 21 13 24 20 18 31 16 9 25 29 27 MEAN QNH PRESSURE IN HPA 1012.7 1019.2 1017.8 1018.5 1014.6 1011.8 1009.4 1008.7 1011.6 1017.4 1019.8 1017.9 1014.9 MAX. QNH PRESSURE IN HPA 1025.6 1035.2 1032.8 1024.9 1020.2 1022.3 1016.7 1014.2 1018.6 1026.2 1029.1 1027.6 1035.2 DAY 19 6 26 6 23 8 13 27 18 30 22 23 MIN. QNH PRESSURE IN HPA 999.2 1004.4 995.8 1007.1 1006.7 1005.6 1003.0 1000.0 1005.2 1004.1 1013.1 1003.9 995.8 DAY 7 21 13 24 20 18 31 16 9 25 29 27 MEAN QFF PRESSURE IN HPA 1013.0 1019.4 1018.0 1018.7 1014.9 1012.1 1009.8 1009.1 1012.0 1017.7 1020.0 1018.1 1015.2 MAX. QFF PRESSURE IN HPA 1025.9 1035.4 1033.0 1025.1 1020.5 1022.6 1017.0 1014.6 1018.9 1026.5 1029.4 1027.9 1035.4 DAY 19 6 26 6 23 8 13 27 18 30 22 23 MIN. QFF PRESSURE IN HPA 999.5 1004.7 996.1 1007.4 1007.1 1006.0 1003.4 1000.4 1005.6 1004.4 1013.4 1004.1 996.1 DAY 7 21 13 24 20 24 31 16 9 25 29 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1016.5 1022.9 1021.5 1022.0 1018.0 1014.9 1012.5 1012.0 1015.1 1020.8 1023.4 1021.9 1018.5 MAX. QFE PRESSURE IN HPA 1029.4 1038.7 1037.2 1028.4 1023.7 1025.5 1018.5 1017.9 1022.7 1030.2 1033.2 1031.8 1038.7 DAY 19 5 26 6 23 8 13 27 17 30 21 23 MIN. QFE PRESSURE IN HPA 1002.5 1011.0 1002.1 1010.9 1010.2 1008.7 1006.3 1004.0 1009.0 1006.9 1016.7 1010.6 1002.1 DAY 10 21 13 24 20 18 31 16 9 25 14 27 MEAN QNH PRESSURE IN HPA 1013.7 1020.0 1018.7 1019.1 1015.2 1012.1 1009.7 1009.2 1012.3 1018.0 1020.5 1019.0 1015.6 MAX. QNH PRESSURE IN HPA 1026.5 1035.8 1034.3 1025.5 1020.9 1022.7 1015.7 1015.1 1019.9 1027.3 1030.3 1028.9 1035.8 DAY 19 5 26 6 23 8 13 27 17 30 21 23 MIN. QNH PRESSURE IN HPA 999.7 1008.2 999.3 1008.1 1007.4 1005.9 1003.5 1001.2 1006.2 1004.1 1013.9 1007.8 999.3 DAY 10 21 13 24 20 18 31 16 9 25 14 27 MEAN QFF PRESSURE IN HPA 1013.9 1020.3 1018.9 1019.4 1015.6 1012.5 1010.1 1009.6 1012.7 1018.3 1020.8 1019.3 1015.9 MAX. QFF PRESSURE IN HPA 1026.8 1036.0 1034.6 1025.8 1021.2 1023.0 1016.0 1015.5 1020.3 1027.7 1030.6 1029.2 1036.0 DAY 19 5 26 6 23 8 13 27 17 30 21 23 MIN. QFF PRESSURE IN HPA 1000.0 1008.5 999.6 1008.4 1007.8 1006.3 1003.9 1001.6 1006.6 1004.5 1014.2 1008.1 999.6 DAY 10 21 13 24 20 18 31 16 9 25 27 27 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1015.7 1022.3 1021.1 1021.7 1017.9 1014.7 1012.1 1011.4 1014.7 1020.1 1022.5 1020.7 1017.9 MAX. QFE PRESSURE IN HPA 1028.4 1039.0 1036.7 1028.4 1024.4 1025.5 1017.9 1017.4 1022.7 1031.0 1033.0 1030.4 1039.0 DAY 1 5 26 6 23 8 12 27 17 27 21 31 MIN. QFE PRESSURE IN HPA 997.6 1010.1 1004.0 1010.2 1008.6 1008.0 1006.0 1003.6 1008.4 1007.5 1016.2 1007.4 997.6 DAY 10 20 13 23 20 5 31 16 27 25 14 27 MEAN QNH PRESSURE IN HPA 1012.9 1019.5 1018.2 1018.9 1015.1 1011.9 1009.3 1008.6 1011.8 1017.3 1019.7 1017.8 1015.1 MAX. QNH PRESSURE IN HPA 1025.5 1036.1 1033.8 1025.5 1021.6 1022.7 1015.1 1014.6 1019.9 1028.1 1030.1 1027.5 1036.1 DAY 1 5 26 6 23 8 12 27 17 27 21 31 MIN. QNH PRESSURE IN HPA 994.8 1007.3 1001.2 1007.4 1005.8 1005.2 1003.2 1000.8 1005.6 1004.7 1013.4 1004.6 994.8 DAY 10 20 13 23 20 5 31 16 27 25 14 27 MEAN QFF PRESSURE IN HPA 1013.1 1019.7 1018.5 1019.1 1015.5 1012.2 1009.7 1009.0 1012.2 1017.6 1020.0 1018.1 1015.4 MAX. QFF PRESSURE IN HPA 1025.8 1036.3 1034.1 1025.8 1021.9 1023.0 1015.4 1015.0 1020.2 1028.4 1030.4 1027.8 1036.3 DAY 1 5 26 6 23 8 12 27 17 27 21 31 MIN. QFF PRESSURE IN HPA 995.1 1007.6 1001.6 1007.7 1006.2 1005.6 1003.6 1001.2 1006.0 1005.1 1013.7 1004.9 995.1 DAY 10 20 13 23 20 5 31 16 27 25 14 27 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1014.8 1021.4 1020.1 1021.0 1017.1 1014.1 1011.5 1010.6 1014.0 1019.7 1021.9 1020.1 1017.2 MAX. QFE PRESSURE IN HPA 1028.0 1037.7 1035.4 1027.9 1024.0 1024.0 1020.8 1016.3 1021.7 1031.0 1032.7 1030.3 1037.7 DAY 1 5 26 6 22 8 12 24 17 27 21 31 MIN. QFE PRESSURE IN HPA 996.8 1009.3 1004.3 1009.3 1006.6 1007.1 1004.9 1002.3 1008.3 1008.8 1016.2 1007.0 996.8 DAY 10 20 13 23 20 5 31 16 9 25 14 27 MEAN QNH PRESSURE IN HPA 1011.9 1018.6 1017.2 1018.1 1014.3 1011.3 1008.6 1007.8 1011.1 1016.9 1019.1 1017.2 1014.4 MAX. QNH PRESSURE IN HPA 1025.1 1034.8 1032.5 1025.0 1021.2 1021.2 1018.0 1013.5 1018.9 1028.1 1029.8 1027.4 1034.8 DAY 1 5 26 6 22 8 12 24 17 27 21 31 MIN. QNH PRESSURE IN HPA 994.0 1006.5 1001.5 1006.5 1003.8 1004.3 1002.1 999.5 1005.5 1006.0 1013.4 1004.2 994.0 DAY 10 20 13 23 20 5 31 16 9 25 14 27 MEAN QFF PRESSURE IN HPA 1012.2 1018.8 1017.5 1018.4 1014.7 1011.6 1009.0 1008.2 1011.5 1017.3 1019.4 1017.5 1014.7 MAX. QFF PRESSURE IN HPA 1025.4 1035.0 1032.8 1025.3 1021.5 1021.5 1018.3 1013.9 1019.2 1028.4 1030.1 1027.7 1035.0 DAY 1 5 26 6 22 8 12 24 17 27 21 31 MIN. QFF PRESSURE IN HPA 994.3 1006.8 1001.8 1006.8 1004.2 1004.7 1002.5 999.9 1005.9 1006.4 1013.7 1004.5 994.3 DAY 10 20 13 23 20 5 31 16 9 25 14 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1968 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1015.1 1021.8 1020.2 1020.9 1017.0 1013.6 1011.1 1010.3 1014.0 1019.8 1022.3 1020.6 1017.2 MAX. QFE PRESSURE IN HPA 1028.0 1037.9 1035.6 1027.5 1022.3 1024.1 1020.6 1016.2 1021.4 1031.0 1033.0 1030.9 1037.9 DAY 1 5 26 21 22 1 12 27 17 27 21 31 MIN. QFE PRESSURE IN HPA 1000.0 1009.4 1003.6 1010.9 1006.4 1005.8 1003.8 1001.6 1008.3 1010.4 1016.4 1008.2 1000.0 DAY 10 19 13 23 20 18 31 16 8 25 28 27 MEAN QNH PRESSURE IN HPA 1012.2 1019.0 1017.4 1018.0 1014.2 1010.8 1008.3 1007.5 1011.2 1017.0 1019.5 1017.8 1014.4 MAX. QNH PRESSURE IN HPA 1025.1 1035.0 1032.7 1024.7 1019.5 1021.3 1017.8 1013.4 1018.6 1028.1 1030.1 1028.0 1035.0 DAY 1 5 26 21 22 1 12 27 17 27 21 31 MIN. QNH PRESSURE IN HPA 997.2 1006.6 1000.8 1008.1 1003.6 1003.0 1001.0 998.8 1005.5 1007.6 1013.6 1005.4 997.2 DAY 10 19 13 23 20 18 31 16 8 25 28 27 MEAN QFF PRESSURE IN HPA 1012.5 1019.2 1017.6 1018.3 1014.5 1011.2 1008.7 1007.9 1011.6 1017.3 1019.8 1018.0 1014.7 MAX. QFF PRESSURE IN HPA 1025.4 1035.2 1033.0 1024.9 1019.8 1021.6 1018.1 1013.8 1018.9 1028.4 1030.4 1028.3 1035.2 DAY 1 5 26 27 22 1 12 27 17 27 21 31 MIN. QFF PRESSURE IN HPA 997.5 1006.8 1001.1 1008.4 1004.0 1003.4 1001.4 999.2 1005.9 1007.9 1013.9 1005.7 997.5 DAY 10 19 13 23 20 18 31 16 8 25 28 27 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1015.2 1022.4 1021.0 1021.5 1017.9 1014.1 1011.8 1011.0 1014.6 1020.0 1022.6 1020.9 1017.8 MAX. QFE PRESSURE IN HPA 1029.1 1038.1 1036.6 1028.3 1024.8 1025.1 1020.1 1017.0 1022.1 1031.2 1033.2 1031.4 1038.1 DAY 19 5 26 21 31 7 12 27 17 27 21 31 MIN. QFE PRESSURE IN HPA 1001.4 1009.2 1004.7 1010.6 1007.9 1003.8 1004.0 1001.6 1008.7 1009.1 1016.1 1008.5 1001.4 DAY 13 19 12 23 20 18 31 16 8 24 28 10 MEAN QNH PRESSURE IN HPA 1012.4 1019.5 1018.2 1018.6 1015.1 1011.3 1009.0 1008.2 1011.8 1017.1 1019.7 1018.1 1014.9 MAX. QNH PRESSURE IN HPA 1026.2 1035.2 1033.7 1025.4 1022.0 1022.3 1017.3 1014.2 1019.3 1028.3 1030.3 1028.5 1035.2 DAY 19 5 26 21 31 7 12 27 17 27 21 31 MIN. QNH PRESSURE IN HPA 998.6 1006.4 1001.9 1007.8 1005.1 1001.0 1001.2 998.8 1005.9 1006.3 1013.3 1005.7 998.6 DAY 13 19 12 23 20 18 31 16 8 24 28 10 MEAN QFF PRESSURE IN HPA 1012.6 1019.7 1018.4 1018.9 1015.5 1011.7 1009.4 1008.6 1012.2 1017.5 1020.0 1018.3 1015.2 MAX. QFF PRESSURE IN HPA 1026.5 1035.4 1034.0 1025.7 1022.3 1022.6 1017.6 1014.6 1019.6 1028.6 1030.6 1028.8 1035.4 DAY 19 5 26 21 31 7 12 27 17 27 21 31 MIN. QFF PRESSURE IN HPA 998.9 1006.6 1002.2 1008.1 1005.5 1001.4 1001.6 999.2 1006.3 1006.7 1013.6 1006.0 998.9 DAY 13 19 12 23 20 18 31 16 27 24 28 10 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1015.1 1021.9 1020.7 1021.1 1017.8 1013.8 1011.7 1010.9 1014.4 1019.7 1022.5 1021.0 1017.5 MAX. QFE PRESSURE IN HPA 1029.4 1038.1 1036.1 1027.4 1025.0 1025.3 1019.9 1016.6 1021.8 1029.5 1033.2 1030.9 1038.1 DAY 19 5 26 7 31 7 12 18 17 27 21 31 MIN. QFE PRESSURE IN HPA 1003.5 1008.5 1000.6 1008.8 1010.1 1002.7 1004.0 1001.2 1007.7 1009.2 1013.7 1008.6 1000.6 DAY 13 20 12 23 20 18 31 16 8 24 28 10 MEAN QNH PRESSURE IN HPA 1012.3 1019.0 1017.8 1018.3 1015.0 1011.0 1008.8 1008.1 1011.6 1016.8 1019.6 1018.2 1014.7 MAX. QNH PRESSURE IN HPA 1026.5 1035.2 1033.2 1024.6 1022.2 1022.5 1017.1 1013.8 1019.0 1026.6 1030.3 1028.0 1035.2 DAY 19 5 26 7 31 7 12 18 17 27 21 31 MIN. QNH PRESSURE IN HPA 1000.7 1005.7 997.8 1006.0 1007.3 999.9 1001.2 998.4 1004.9 1006.4 1010.9 1005.8 997.8 DAY 13 20 12 23 20 18 31 16 8 24 28 10 MEAN QFF PRESSURE IN HPA 1012.5 1019.3 1018.1 1018.6 1015.3 1011.4 1009.3 1008.5 1012.0 1017.2 1019.9 1018.4 1015.0 MAX. QFF PRESSURE IN HPA 1026.8 1035.4 1033.5 1024.8 1022.5 1022.8 1017.4 1014.2 1019.3 1026.9 1030.6 1028.3 1035.4 DAY 19 5 26 7 31 7 12 18 17 27 21 31 MIN. QFF PRESSURE IN HPA 1001.0 1006.0 998.1 1006.3 1007.7 1000.3 1001.6 998.8 1005.3 1006.8 1011.2 1006.1 998.1 DAY 13 20 12 23 20 18 31 16 8 24 28 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.4 3.8 7.7 11.6 17.4 23.5 24.4 25.3 22.0 17.4 10.8 10.4 14.9 MINIMUN AIR TEMPERATURE (C) 2.0 1.3 6.2 9.3 14.4 19.2 20.8 21.2 18.2 13.7 6.5 7.0 11.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 11 17 22 4 0 0 0 54 DAYS WITH MINIMUM TEMP. <=-4 2 0 0 0 0 0 0 0 0 0 0 0 2 DAYS WITH FREEZING MIN.<= 0 13 13 0 0 0 0 0 0 0 0 0 0 26 TEMPERATURE RECORDS LOWEST(C) -5.0 -2.0 1.0 4.0 10.0 14.0 18.0 18.0 13.0 5.0 1.0 3.0 -5.0 DAY 6 10 24 15 9 1 9 31 14 31 19 31 MAXIMUM AIR TEMPERATURE (C) 7.9 7.3 10.0 14.9 21.2 27.9 28.4 29.6 26.3 21.9 16.1 14.9 18.9 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 9 8 17 7 0 0 0 41 DAYS WITH MAXIMUM TEMP. <= 0 1 1 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS HIGHEST(C) 14.0 11.0 13.0 24.0 28.0 34.0 37.0 32.0 31.0 26.0 24.0 19.0 37.0 DAY 14 1 30 17 14 24 14 21 6 3 7 5 DIF. BETWEEN (MAX.-MIN.) (C) 5.9 6.0 3.8 5.6 6.8 8.7 7.6 8.4 8.1 8.2 9.6 7.9 7.2 MEAN DAILY TEMP. (MDT) (C) 4.9 4.3 8.1 12.1 17.8 23.6 24.6 25.4 22.2 17.8 11.3 11.0 15.3 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 0.5 82.0 111.5 137.0 52.5 1.5 0.0 0.0 385.0 HEATING DEG. DAYS(BASE 18 0C) 405.0 383.0 307.0 177.0 26.5 0.0 0.0 0.0 0.0 36.0 200.5 217.5 1752.5 DEWPOINT (MEAN C) 2.2 1.7 5.8 9.0 13.8 18.5 19.2 20.8 18.5 14.7 8.4 8.4 11.8 MIXING RATIO (G/KG) 4.56 4.29 5.71 7.18 9.87 13.50 14.04 15.52 13.43 10.59 6.95 6.88 9.38 VAPOUR PRESSURE (HPA) 7.44 7.02 9.27 11.63 15.89 21.47 22.35 24.68 21.49 17.06 11.30 11.16 15.06 SATURATION DEF. (HPA) 1.22 1.15 1.29 2.26 4.34 7.94 8.65 8.01 5.58 3.34 2.08 1.67 3.96 RELATIVE HUMIDITY (MEAN %) 87 87 88 85 80 75 74 77 82 85 87 88 83 RELATIVE HUMIDITY (MAX. %) 96 96 95 95 93 92 91 93 95 97 97 97 95 RELATIVE HUMIDITY (MIN. %) 73 74 79 73 68 57 57 62 65 69 68 73 68 RELATIVE HUMIDITY (MEAN% 03UTC) 93 93 94 92 91 87 87 91 94 96 95 94 92 RELATIVE HUMIDITY (MEAN% 09UTC) 77 79 82 78 70 62 61 65 70 72 71 75 72 RELATIVE HUMIDITY (MEAN% 15UTC) 87 84 85 81 74 68 66 69 75 81 90 90 79 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 87.5 74.6 66.3 55.7 16.1 2.2 3.3 8.9 165.1 128.0 162.0 79.2 848.9 DAYS WITH PRECIPITATION >=10 3 3 4 2 0 0 0 0 6 4 6 3 31 DAYS WITH PRECIPITATION >= 5 8 5 4 3 2 0 0 1 7 5 8 5 48 DAYS WITH PRECIPITATION >= 1 12 10 11 7 4 1 1 2 10 8 13 8 87 DAYS WITH PRECIPITATION 14 14 16 11 6 3 2 4 13 8 13 9 113 GREATEST DAILY PRECIPITATION 24.0 24.0 17.0 31.0 6.5 2.0 3.1 7.0 43.3 51.0 36.0 35.0 51.0 DAY 25 2 23 14 7 16 6 9 12 30 3 6 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 1 0 1 0 2 DAYS WITH SNOW OR SLEET 4 7 2 0 0 0 0 0 0 0 0 0 13 DAYS WITH DUST 1 0 0 0 0 0 0 0 0 0 0 0 1 WIND DIRECTION (PREVAILING) 90 90 45 45 270 360 315 360 45 45 45 90 45 PREVAILING WIND SPEED(KNOTS) 6.5 5.2 5.5 5.5 6.7 5.2 6.7 5.2 5.5 5.2 5.2 5.2 5.4 PREVAILING WIND PERCENT 15.7 16.1 15.3 15.8 16.5 16.3 15.7 14.1 12.9 13.7 9.9 9.3 10.6 CALMS PERCENT OF WIND 48.0 49.1 50.4 43.3 41.5 44.6 46.4 44.0 47.1 55.6 52.6 55.6 48.2 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 213 248 2893 VECTOR WIND DIRECTION (MEAN) 98 66 47 347 325 329 314 315 329 41 307 64 351 VECTOR WIND MAGNITUDE(KNOTS) 1.1 0.9 1.3 1.3 1.8 1.9 2.0 1.5 0.9 1.1 0.3 0.3 0.8 WIND STEADINESES (MEAN %) 40.7 34.6 48.1 39.4 51.4 54.3 62.5 51.7 32.1 44.0 12.0 13.6 27.6 WIND SPEED (MEAN KNOTS) 2.7 2.6 2.7 3.3 3.5 3.5 3.2 2.9 2.8 2.5 2.5 2.2 2.9 FASTEST WIND DIRECTION 90 270 90 270 280 150 280 310 300 310 270 330 150 FASTEST WIND SPEED (KNOTS) 18 15 15 18 12 20 15 14 15 15 20 12 20 DAY 5 2 25 14 4 17 14 15 27 8 9 19 DAYS WITH SKY CLEAR (0-2)/8 6 5 0 4 12 22 9 13 13 7 16 9 116 DAYS WITH P.CLOUDY (3-6)/8 10 9 4 7 4 4 11 14 4 12 5 13 97 DAYS WITH CLOUDY (7-8)/8 15 14 27 19 15 4 11 4 13 12 9 9 152 DAYS WITH VISIBILITY =< 2 KM 3 2 1 3 2 0 0 1 2 0 3 2 19 DURATION OF SUNSHINE HOURS 97.0 93.8 51.1 131.9 213.7 283.2 196.7 239.7 191.9 124.6 148.9 125.1 1897.6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1025.2 1026.7 1020.2 1019.4 1017.3 1011.2 1012.8 1014.1 1017.4 1019.7 1024.1 1020.1 1019.0 MAX. QFE PRESSURE IN HPA 1043.0 1039.1 1034.2 1030.9 1026.7 1021.6 1020.2 1022.3 1030.2 1032.7 1032.5 1029.0 1043.0 DAY-HOUR 6- 6 10-18 12- 6 4- 6 21- 6 1- 6 2-18 31- 9 13- 0 26- 9 10- 9 7- 6 MIN. QFE PRESSURE IN HPA 1009.7 1009.6 1000.4 994.2 1003.9 1000.2 1000.5 1003.7 1006.7 1005.1 1011.1 1007.4 994.2 DAY-HOUR 20- 3 13-12 19-15 17-15 14-18 24- 0 13-21 14-21 7-12 29- 3 7- 9 13-15 MEAN QNH PRESSURE IN HPA 1022.3 1023.8 1017.4 1016.6 1014.5 1008.4 1010.0 1011.2 1014.5 1016.8 1021.3 1017.3 1016.2 MAX. QNH PRESSURE IN HPA 1040.1 1036.2 1031.3 1028.0 1023.9 1018.8 1017.4 1019.5 1027.3 1029.8 1029.6 1026.1 1040.1 DAY-HOUR 6- 6 10-18 12- 6 4- 6 21- 6 1- 6 2-18 31- 9 13- 0 26- 9 10- 9 7- 6 MIN. QNH PRESSURE IN HPA 1006.9 1006.8 997.6 991.4 1001.1 997.4 997.7 1000.9 1003.9 1002.3 1008.3 1004.6 991.4 DAY-HOUR 20- 3 13-12 19-15 17-15 14-18 24- 0 13-21 14-21 7-12 29- 3 7- 9 13-15 MEAN QFF PRESSURE IN HPA 1022.5 1024.0 1017.6 1016.8 1014.8 1008.8 1010.4 1011.7 1014.9 1017.2 1021.7 1017.6 1016.5 MAX. QFF PRESSURE IN HPA 1040.2 1036.4 1031.6 1028.3 1024.2 1019.1 1017.7 1019.9 1027.7 1030.1 1029.6 1026.4 1040.2 DAY-HOUR 6- 6 10-21 12- 6 4- 6 21- 6 1- 6 2-18 31- 9 13- 0 26- 9 15-21 7- 6 MIN. QFF PRESSURE IN HPA 1007.1 1007.0 997.9 991.7 1001.5 997.8 998.1 1001.3 1004.3 1002.6 1008.7 1004.8 991.7 DAY-HOUR 20- 3 13-12 19-15 17-15 14-18 24- 0 13-21 14-21 7-12 29- 3 7- 3 13-15 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1025.4 1026.4 1020.2 1018.9 1016.8 1011.0 1012.7 1013.7 1017.0 1019.5 1024.3 1020.3 1018.9 MAX. QFE PRESSURE IN HPA 1042.3 1038.1 1033.8 1029.3 1025.6 1020.8 1019.0 1020.9 1030.2 1029.2 1031.0 1028.4 1042.3 DAY 6 11 12 4 17 1 3 31 13 27 15 7 MIN. QFE PRESSURE IN HPA 1010.0 1014.7 1005.6 1001.4 1006.7 1000.2 1001.3 1005.1 1007.1 1005.9 1014.4 1009.3 1000.2 DAY 20 13 20 18 3 24 14 15 7 29 2 31 MEAN QNH PRESSURE IN HPA 1022.6 1023.5 1017.3 1016.1 1014.0 1008.2 1009.9 1010.9 1014.1 1016.7 1021.5 1017.5 1016.0 MAX. QNH PRESSURE IN HPA 1039.4 1035.2 1030.9 1026.4 1022.8 1018.0 1016.2 1018.1 1027.3 1026.3 1028.1 1025.5 1039.4 DAY 6 11 12 4 17 1 3 31 13 27 15 7 MIN. QNH PRESSURE IN HPA 1007.2 1011.9 1002.8 998.6 1003.9 997.4 998.5 1002.3 1004.3 1003.1 1011.6 1006.5 997.4 DAY 20 13 20 18 3 24 14 15 7 29 2 31 MEAN QFF PRESSURE IN HPA 1022.8 1023.7 1017.6 1016.3 1014.3 1008.6 1010.3 1011.3 1014.5 1017.0 1021.7 1017.8 1016.3 MAX. QFF PRESSURE IN HPA 1039.5 1035.4 1031.2 1026.7 1023.1 1018.3 1016.5 1018.5 1027.7 1026.6 1028.4 1025.8 1039.5 DAY 6 11 12 4 17 1 3 31 13 27 23 7 MIN. QFF PRESSURE IN HPA 1007.4 1012.1 1003.0 998.9 1004.2 997.8 998.9 1002.7 1004.7 1003.4 1011.9 1006.8 997.8 DAY 20 13 20 18 3 24 14 15 7 29 2 31 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1025.3 1026.6 1020.6 1019.4 1017.3 1011.6 1013.3 1014.5 1017.6 1020.0 1023.9 1020.2 1019.2 MAX. QFE PRESSURE IN HPA 1042.3 1037.5 1033.8 1029.8 1026.4 1021.3 1019.0 1021.7 1030.2 1029.2 1031.4 1028.7 1042.3 DAY 6 11 12 4 17 1 3 31 13 9 10 7 MIN. QFE PRESSURE IN HPA 1009.7 1013.8 1006.1 1003.7 1006.5 1000.5 1001.3 1007.7 1007.0 1005.1 1011.2 1008.4 1000.5 DAY 20 13 20 17 14 24 14 15 7 29 7 24 MEAN QNH PRESSURE IN HPA 1022.4 1023.7 1017.8 1016.6 1014.4 1008.8 1010.5 1011.7 1014.8 1017.2 1021.0 1017.4 1016.3 MAX. QNH PRESSURE IN HPA 1039.4 1034.6 1030.9 1026.9 1023.6 1018.5 1016.2 1018.9 1027.3 1026.3 1028.5 1025.8 1039.4 DAY 6 11 12 4 17 1 3 31 13 9 10 7 MIN. QNH PRESSURE IN HPA 1006.9 1011.0 1003.3 1000.9 1003.7 997.7 998.5 1004.9 1004.2 1002.3 1008.4 1005.6 997.7 DAY 20 13 20 17 14 24 14 15 7 29 7 24 MEAN QFF PRESSURE IN HPA 1022.6 1023.9 1018.0 1016.8 1014.7 1009.2 1010.9 1012.1 1015.1 1017.5 1021.3 1017.6 1016.6 MAX. QFF PRESSURE IN HPA 1039.5 1034.8 1031.2 1027.2 1023.9 1018.8 1016.5 1019.2 1027.7 1026.7 1028.8 1026.1 1039.5 DAY 6 11 12 4 17 1 3 31 13 9 10 7 MIN. QFF PRESSURE IN HPA 1007.1 1011.2 1003.5 1001.2 1004.0 998.1 998.9 1005.3 1004.6 1002.6 1008.7 1005.9 998.1 DAY 20 13 20 17 14 24 14 15 7 29 7 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1026.2 1027.5 1021.4 1020.1 1017.7 1011.9 1013.6 1014.9 1018.1 1020.9 1024.7 1021.0 1019.8 MAX. QFE PRESSURE IN HPA 1043.0 1038.4 1034.2 1030.9 1026.7 1021.6 1018.8 1021.7 1029.6 1032.1 1032.2 1029.0 1043.0 DAY 6 10 12 4 21 1 3 31 13 26 18 7 MIN. QFE PRESSURE IN HPA 1012.1 1013.6 1006.2 1002.3 1006.4 1001.5 1001.3 1007.9 1007.7 1005.6 1011.7 1008.9 1001.3 DAY 19 13 19 1 14 24 14 4 7 29 7 31 MEAN QNH PRESSURE IN HPA 1023.3 1024.7 1018.6 1017.3 1014.8 1009.1 1010.7 1012.1 1015.3 1018.0 1021.9 1018.1 1017.0 MAX. QNH PRESSURE IN HPA 1040.1 1035.5 1031.3 1028.0 1023.9 1018.8 1016.0 1018.9 1026.7 1029.2 1029.3 1026.1 1040.1 DAY 6 10 12 4 21 1 3 31 13 26 18 7 MIN. QNH PRESSURE IN HPA 1009.3 1010.8 1003.4 999.5 1003.6 998.7 998.5 1005.1 1004.9 1002.8 1008.9 1006.1 998.5 DAY 19 13 19 1 14 24 14 4 7 29 7 31 MEAN QFF PRESSURE IN HPA 1023.5 1024.9 1018.8 1017.5 1015.2 1009.5 1011.1 1012.5 1015.7 1018.4 1022.9 1018.4 1017.4 MAX. QFF PRESSURE IN HPA 1040.2 1035.7 1031.6 1028.3 1024.2 1019.1 1016.3 1019.3 1027.1 1029.6 1029.6 1026.4 1040.2 DAY 6 10 12 4 21 1 3 31 13 26 18 7 MIN. QFF PRESSURE IN HPA 1009.5 1011.0 1003.7 999.8 1004.0 999.1 998.9 1005.5 1005.3 1003.1 1012.9 1006.3 998.9 DAY 19 13 19 1 14 24 14 4 7 29 1 31 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1025.5 1027.1 1020.8 1019.8 1017.4 1011.7 1013.2 1014.6 1017.7 1020.4 1024.1 1020.0 1019.3 MAX. QFE PRESSURE IN HPA 1041.0 1038.0 1032.5 1030.4 1026.5 1021.3 1018.7 1022.3 1029.6 1032.7 1032.5 1028.0 1041.0 DAY 6 10 12 4 21 1 6 31 13 26 10 7 MIN. QFE PRESSURE IN HPA 1011.2 1011.2 1005.7 1000.3 1004.5 1001.8 1001.3 1007.4 1006.8 1005.6 1011.1 1007.6 1000.3 DAY 19 13 19 1 14 24 14 4 7 29 7 31 MEAN QNH PRESSURE IN HPA 1022.6 1024.2 1017.9 1016.9 1014.6 1008.9 1010.4 1011.8 1014.9 1017.5 1021.3 1017.1 1016.5 MAX. QNH PRESSURE IN HPA 1038.1 1035.1 1029.6 1027.5 1023.7 1018.5 1015.9 1019.5 1026.7 1029.8 1029.6 1025.1 1038.1 DAY 6 10 12 4 21 1 6 31 13 26 10 7 MIN. QNH PRESSURE IN HPA 1008.4 1008.4 1002.9 997.5 1001.7 999.0 998.5 1004.6 1004.0 1002.8 1008.3 1004.8 997.5 DAY 19 13 19 1 14 24 14 4 7 29 7 31 MEAN QFF PRESSURE IN HPA 1022.8 1024.4 1018.2 1017.2 1014.9 1009.3 1010.8 1012.2 1015.2 1017.9 1022.1 1017.4 1016.9 MAX. QFF PRESSURE IN HPA 1038.2 1035.3 1029.9 1027.8 1024.0 1018.8 1016.2 1019.9 1027.1 1030.1 1028.9 1025.4 1038.2 DAY 6 10 12 4 21 1 6 31 13 26 18 7 MIN. QFF PRESSURE IN HPA 1008.6 1008.6 1003.1 997.8 1002.1 999.4 998.9 1005.0 1004.4 1003.1 1011.7 1005.1 997.8 DAY 19 13 19 1 14 24 14 4 7 29 1 31 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1024.6 1025.9 1019.5 1019.1 1017.3 1011.1 1012.3 1013.7 1016.8 1019.1 1023.3 1019.5 1018.5 MAX. QFE PRESSURE IN HPA 1038.8 1036.9 1031.7 1028.1 1025.8 1020.6 1018.5 1020.5 1028.6 1031.8 1031.0 1027.0 1038.8 DAY 6 10 24 3 21 1 2 31 13 26 10 7 MIN. QFE PRESSURE IN HPA 1011.3 1009.6 1005.1 996.9 1005.3 1003.8 1002.2 1006.6 1006.7 1005.6 1011.4 1007.6 996.9 DAY 19 13 19 17 14 24 14 3 7 29 7 31 MEAN QNH PRESSURE IN HPA 1021.7 1023.0 1016.6 1016.3 1014.4 1008.3 1009.5 1010.9 1014.0 1016.2 1020.5 1016.7 1015.7 MAX. QNH PRESSURE IN HPA 1035.9 1034.0 1028.8 1025.2 1023.0 1017.8 1015.7 1017.7 1025.7 1028.9 1028.1 1024.2 1035.9 DAY 6 10 24 3 21 1 2 31 13 26 10 7 MIN. QNH PRESSURE IN HPA 1008.5 1006.8 1002.3 994.1 1002.5 1001.0 999.4 1003.8 1003.9 1002.8 1008.6 1004.8 994.1 DAY 19 13 19 17 14 24 14 3 7 29 7 31 MEAN QFF PRESSURE IN HPA 1021.9 1023.2 1016.9 1016.5 1014.8 1008.6 1009.9 1011.3 1014.4 1016.6 1021.2 1016.9 1016.0 MAX. QFF PRESSURE IN HPA 1036.0 1034.2 1029.0 1025.5 1023.3 1018.1 1016.1 1018.1 1026.1 1029.2 1028.4 1024.4 1036.0 DAY 6 10 24 3 21 1 2 31 13 26 22 7 MIN. QFF PRESSURE IN HPA 1008.7 1007.0 1002.5 994.4 1002.9 1001.4 999.8 1004.2 1004.3 1003.1 1011.7 1005.1 994.4 DAY 19 13 19 17 14 24 14 3 7 29 1 31 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1969 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1024.9 1026.5 1019.5 1018.8 1017.3 1010.7 1012.0 1013.4 1016.9 1019.1 1023.7 1020.0 1018.6 MAX. QFE PRESSURE IN HPA 1038.5 1038.2 1031.6 1028.7 1025.0 1020.3 1018.9 1020.5 1029.0 1031.2 1031.2 1028.2 1038.5 DAY 4 10 24 3 21 1 2 31 13 26 10 6 MIN. QFE PRESSURE IN HPA 1011.1 1012.0 1000.4 994.2 1004.2 1003.2 1002.7 1005.9 1007.9 1008.3 1011.4 1007.4 994.2 DAY 19 13 19 17 14 28 14 3 9 29 7 13 MEAN QNH PRESSURE IN HPA 1022.0 1023.6 1016.7 1016.0 1014.5 1007.9 1009.2 1010.6 1014.1 1016.3 1020.9 1017.1 1015.7 MAX. QNH PRESSURE IN HPA 1035.6 1035.3 1028.7 1025.8 1022.2 1017.5 1016.1 1017.7 1026.1 1028.3 1028.3 1025.3 1035.6 DAY 4 10 24 3 21 1 2 31 13 26 10 6 MIN. QNH PRESSURE IN HPA 1008.3 1009.2 997.6 991.4 1001.4 1000.4 999.9 1003.1 1005.1 1005.5 1008.6 1004.6 991.4 DAY 19 13 19 17 14 28 14 3 9 29 7 13 MEAN QFF PRESSURE IN HPA 1022.2 1023.8 1016.9 1016.2 1014.8 1008.2 1009.6 1011.0 1014.5 1016.6 1021.2 1017.4 1016.0 MAX. QFF PRESSURE IN HPA 1035.8 1035.5 1028.9 1026.1 1022.5 1017.8 1016.4 1018.1 1026.5 1028.6 1028.6 1025.6 1035.8 DAY 4 10 24 3 21 1 2 31 13 26 10 6 MIN. QFF PRESSURE IN HPA 1008.5 1009.4 997.9 991.7 1001.7 1000.8 1000.3 1003.5 1005.5 1005.8 1008.9 1004.8 991.7 DAY 19 13 19 17 14 28 14 3 9 29 7 13 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1025.0 1026.7 1020.0 1019.7 1017.8 1011.2 1012.9 1014.0 1017.5 1019.4 1024.6 1020.2 1019.1 MAX. QFE PRESSURE IN HPA 1038.8 1039.1 1033.1 1029.6 1025.8 1021.5 1020.2 1020.7 1029.7 1031.4 1031.7 1028.2 1039.1 DAY 4 10 11 3 20 1 2 30 12 26 15 6 MIN. QFE PRESSURE IN HPA 1011.3 1014.9 1004.8 1001.2 1003.9 1001.4 1003.0 1005.9 1009.0 1008.9 1013.7 1009.8 1001.2 DAY 19 8 30 17 14 28 14 3 19 19 1 30 MEAN QNH PRESSURE IN HPA 1022.2 1023.9 1017.2 1016.8 1014.9 1008.4 1010.1 1011.2 1014.7 1016.6 1021.8 1017.4 1016.3 MAX. QNH PRESSURE IN HPA 1035.9 1036.2 1030.2 1026.7 1023.0 1018.7 1017.4 1017.9 1026.8 1028.5 1028.8 1025.3 1036.2 DAY 4 10 11 3 20 1 2 30 12 26 15 6 MIN. QNH PRESSURE IN HPA 1008.5 1012.1 1002.0 998.4 1001.1 998.6 1000.2 1003.1 1006.2 1006.1 1010.9 1007.0 998.4 DAY 19 8 30 17 14 28 14 3 19 19 1 30 MEAN QFF PRESSURE IN HPA 1022.4 1024.1 1017.4 1017.1 1015.3 1008.8 1010.5 1011.6 1015.0 1016.9 1022.0 1017.7 1016.6 MAX. QFF PRESSURE IN HPA 1036.1 1036.4 1030.5 1027.0 1023.3 1019.0 1017.7 1018.2 1027.2 1028.8 1029.1 1025.6 1036.4 DAY 4 10 11 3 21 1 2 30 12 26 15 6 MIN. QFF PRESSURE IN HPA 1008.7 1012.3 1002.3 998.7 1001.5 999.0 1000.6 1003.5 1006.6 1006.4 1011.2 1007.2 998.7 DAY 19 8 30 17 14 28 14 3 19 19 1 30 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1024.8 1026.7 1019.8 1019.6 1017.2 1010.9 1012.8 1013.8 1017.4 1019.2 1024.7 1020.1 1018.9 MAX. QFE PRESSURE IN HPA 1039.9 1039.1 1033.8 1029.6 1025.6 1020.5 1019.4 1020.7 1030.0 1030.1 1032.2 1028.4 1039.9 DAY 5 10 11 3 16 1 2 30 12 9 15 6 MIN. QFE PRESSURE IN HPA 1011.1 1016.1 1005.6 1001.5 1004.7 1001.4 1000.5 1003.7 1008.2 1008.4 1014.4 1009.8 1000.5 DAY 19 27 19 17 14 28 13 14 6 28 1 30 MEAN QNH PRESSURE IN HPA 1022.0 1023.8 1017.0 1016.7 1014.3 1008.1 1009.9 1011.0 1014.5 1016.3 1021.9 1017.2 1016.1 MAX. QNH PRESSURE IN HPA 1037.0 1036.2 1030.9 1026.7 1022.8 1017.7 1016.6 1017.9 1027.1 1027.2 1029.3 1025.5 1037.0 DAY 5 10 11 3 16 1 2 30 12 9 15 6 MIN. QNH PRESSURE IN HPA 1008.3 1013.3 1002.8 998.7 1001.9 998.6 997.7 1000.9 1005.4 1005.6 1011.6 1007.0 997.7 DAY 19 27 19 17 14 28 13 14 6 28 1 30 MEAN QFF PRESSURE IN HPA 1022.2 1024.0 1017.2 1017.0 1014.7 1008.5 1010.3 1011.4 1014.9 1016.7 1022.1 1017.5 1016.4 MAX. QFF PRESSURE IN HPA 1037.1 1036.4 1031.2 1027.0 1023.1 1018.0 1016.9 1018.3 1027.5 1027.6 1029.6 1025.8 1037.1 DAY 5 10 11 3 16 1 2 30 12 9 15 6 MIN. QFF PRESSURE IN HPA 1008.5 1013.5 1003.0 999.0 1002.3 999.0 998.1 1001.3 1005.8 1005.9 1011.9 1007.2 998.1 DAY 19 27 19 17 14 28 13 14 6 28 1 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.5 9.5 11.1 14.6 20.5 22.9 25.6 25.9 21.6 18.1 14.5 8.9 16.7 MINIMUN AIR TEMPERATURE (C) 4.4 5.8 8.4 11.4 16.3 19.4 21.4 22.8 18.5 14.5 10.8 5.6 13.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 11 22 30 8 1 0 0 72 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 1 2 TEMPERATURE RECORDS LOWEST(C) 0.0 3.0 5.0 7.0 10.0 15.0 18.0 20.0 13.0 8.0 6.0 0.0 0.0 DAY 29 2 10 26 9 11 20 31 13 26 1 18 MAXIMUM AIR TEMPERATURE (C) 11.6 14.1 14.6 19.1 25.5 26.6 30.0 29.7 25.6 22.7 19.6 13.5 21.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 5 1 18 23 0 0 0 0 47 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 15.0 21.0 27.0 27.0 42.0 30.0 32.0 32.0 28.0 27.0 25.0 19.0 42.0 DAY 4 19 30 7 23 30 11 14 4 1 3 1 DIF. BETWEEN (MAX.-MIN.) (C) 7.2 8.3 6.2 7.7 9.2 7.2 8.6 6.9 7.1 8.2 8.8 7.9 7.7 MEAN DAILY TEMP. (MDT) (C) 8.0 10.0 11.5 15.2 20.9 23.0 25.7 26.3 22.0 18.6 15.2 9.5 17.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 28.0 68.0 145.0 164.0 39.0 6.0 0.0 0.0 450.0 HEATING DEG. DAYS(BASE 18 0C) 310.0 225.0 206.0 87.5 6.0 0.0 0.0 0.0 0.0 20.5 85.0 262.5 1202.5 DEWPOINT (MEAN C) 5.2 6.5 8.4 11.5 15.6 17.7 20.4 22.1 18.6 15.1 12.1 6.5 13.3 MIXING RATIO (G/KG) 5.57 6.03 6.91 8.48 11.17 12.75 15.23 16.91 13.53 10.79 8.83 6.08 10.19 VAPOUR PRESSURE (HPA) 9.06 9.79 11.19 13.70 17.86 20.35 24.14 26.72 21.62 17.36 14.29 9.89 16.33 SATURATION DEF. (HPA) 1.49 2.25 2.41 3.21 6.87 7.88 9.12 7.00 4.63 3.92 2.57 1.82 4.43 RELATIVE HUMIDITY (MEAN %) 87 83 85 83 75 74 75 81 84 84 86 86 82 RELATIVE HUMIDITY (MAX. %) 96 95 95 96 92 89 91 93 95 96 96 96 94 RELATIVE HUMIDITY (MIN. %) 70 67 72 66 58 58 59 66 69 66 69 69 66 RELATIVE HUMIDITY (MEAN% 03UTC) 94 92 92 93 87 87 88 91 94 94 95 93 92 RELATIVE HUMIDITY (MEAN% 09UTC) 77 70 76 72 63 61 62 69 72 67 71 73 69 RELATIVE HUMIDITY (MEAN% 15UTC) 87 83 82 77 66 68 66 75 78 79 86 85 78 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 91.6 18.4 97.5 12.8 2.2 12.3 65.5 32.4 127.0 50.3 48.4 151.4 709.8 DAYS WITH PRECIPITATION >=10 4 0 4 0 0 1 2 1 3 2 1 9 27 DAYS WITH PRECIPITATION >= 5 5 2 8 1 0 1 2 3 5 4 3 9 43 DAYS WITH PRECIPITATION >= 1 9 4 14 3 1 1 3 7 7 9 5 12 75 DAYS WITH PRECIPITATION 10 4 15 6 2 2 5 8 7 12 7 12 90 GREATEST DAILY PRECIPITATION 30.4 8.0 19.5 8.0 2.0 12.0 45.2 12.0 62.0 17.0 30.0 31.4 62.0 DAY 1 14 20 24 7 10 24 29 9 9 13 8 DAY WITH THUNDER STORM 0 0 0 0 0 0 2 0 0 0 0 0 2 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 90 90 270 45 45 315 315 270 225 45 45 90 270 PREVAILING WIND SPEED(KNOTS) 5.2 5.3 6.3 6.4 5.7 6.2 6.8 6.2 4.1 6.2 4.8 5.0 6.2 PREVAILING WIND PERCENT 13.7 15.2 17.7 12.1 15.7 16.7 16.1 20.2 12.9 9.3 12.9 10.1 9.6 CALMS PERCENT OF WIND 55.2 46.4 44.4 45.4 39.9 39.6 36.7 39.5 47.9 55.6 57.1 53.6 46.8 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 87 61 297 340 350 322 309 291 302 330 44 107 333 VECTOR WIND MAGNITUDE(KNOTS) 1.0 1.4 1.2 1.2 1.5 2.0 2.2 2.1 0.8 0.7 0.7 0.5 0.8 WIND STEADINESES (MEAN %) 50.0 50.0 40.0 37.5 42.9 60.6 61.1 65.6 30.8 26.9 36.8 23.8 28.6 WIND SPEED (MEAN KNOTS) 2.0 2.8 3.0 3.2 3.5 3.3 3.6 3.2 2.6 2.6 1.9 2.1 2.8 FASTEST WIND DIRECTION 90 350 260 280 290 290 280 290 280 340 290 60 290 FASTEST WIND SPEED (KNOTS) 10 10 14 13 20 12 15 10 12 15 12 10 20 DAY 2 1 5 8 23 8 14 6 24 31 4 12 DAYS WITH SKY CLEAR (0-2)/8 10 9 4 5 11 15 15 6 9 15 9 11 119 DAYS WITH P.CLOUDY (3-6)/8 6 11 8 8 14 8 11 12 7 6 15 8 114 DAYS WITH CLOUDY (7-8)/8 15 8 19 17 6 7 5 13 14 10 6 12 132 DAYS WITH VISIBILITY =< 2 KM 1 3 1 3 0 0 1 0 1 0 1 1 12 DURATION OF SUNSHINE HOURS 114.5 153.5 101.1 149.9 238.4 251.0 286.1 177.7 134.9 168.4 138.6 124.5 2038.6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1022.2 1019.6 1020.1 1019.6 1013.7 1013.9 1010.2 1009.8 1015.9 1019.7 1021.1 1022.9 1017.4 MAX. QFE PRESSURE IN HPA 1032.7 1030.2 1030.9 1034.1 1024.6 1027.2 1016.6 1020.5 1025.9 1031.0 1036.0 1031.5 1036.0 DAY-HOUR 2- 6 16- 6 5- 6 22- 6 9- 6 11- 3 31-18 29-18 18- 6 31- 9 14- 6 30- 6 MIN. QFE PRESSURE IN HPA 1010.4 1002.0 1000.2 997.0 1003.0 1005.2 1004.1 997.9 1007.9 1003.8 1010.0 1008.7 997.0 DAY-HOUR 30- 3 19- 0 18-18 19-21 15-12 14-21 13-12 26-21 8-12 14-12 3-18 11- 0 MEAN QNH PRESSURE IN HPA 1019.3 1016.7 1017.3 1016.8 1010.8 1011.0 1007.4 1007.0 1013.1 1016.8 1018.3 1020.0 1014.5 MAX. QNH PRESSURE IN HPA 1029.8 1027.3 1028.0 1031.2 1021.8 1024.4 1013.8 1017.7 1023.1 1028.1 1033.1 1028.6 1033.1 DAY-HOUR 2- 6 16- 6 5- 6 22- 6 9- 6 11- 3 31-18 29-18 18- 6 31- 9 14- 6 30- 6 MIN. QNH PRESSURE IN HPA 1007.6 999.2 997.4 994.2 1000.2 1002.4 1001.3 995.1 1005.1 1001.0 1007.2 1005.9 994.2 DAY-HOUR 30- 3 19- 0 18-18 19-21 15-12 14-21 13-12 26-21 8-12 14-12 3-18 11- 0 MEAN QFF PRESSURE IN HPA 1019.5 1017.0 1017.6 1017.1 1011.2 1011.4 1007.8 1007.4 1013.4 1017.2 1018.6 1020.3 1014.9 MAX. QFF PRESSURE IN HPA 1030.1 1027.6 1028.3 1031.5 1022.1 1024.7 1014.2 1018.1 1023.4 1028.4 1033.4 1028.9 1033.4 DAY-HOUR 2- 6 16- 6 5- 9 22- 6 9- 6 11- 3 31-21 29-18 18- 9 31-12 14- 6 30- 6 MIN. QFF PRESSURE IN HPA 1007.8 999.5 997.7 994.6 1000.6 1002.8 1001.7 995.5 1005.5 1001.4 1007.5 1006.2 994.6 DAY-HOUR 30- 3 19- 0 18-18 19-21 15-12 14-21 13-15 27- 3 8-12 14-12 3-18 11- 3 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1022.0 1019.3 1019.6 1019.1 1013.4 1013.9 1010.0 1009.8 1015.9 1019.5 1020.9 1022.4 1017.2 MAX. QFE PRESSURE IN HPA 1031.0 1029.7 1029.1 1033.6 1023.6 1026.0 1015.1 1019.8 1024.1 1026.6 1034.2 1030.9 1034.2 DAY 2 6 5 22 9 11 23 30 18 12 14 30 MIN. QFE PRESSURE IN HPA 1010.7 1002.0 1000.5 1002.7 1005.0 1006.8 1005.5 997.9 1009.8 1005.0 1013.9 1008.7 997.9 DAY 23 19 19 19 15 15 10 27 6 6 8 11 MEAN QNH PRESSURE IN HPA 1019.2 1016.5 1016.7 1016.2 1010.6 1011.1 1007.2 1007.0 1013.1 1016.6 1018.1 1019.6 1014.3 MAX. QNH PRESSURE IN HPA 1028.1 1026.8 1026.2 1030.7 1020.8 1023.2 1012.3 1017.0 1021.3 1023.8 1031.3 1028.0 1031.3 DAY 2 6 5 22 9 11 23 30 18 12 14 30 MIN. QNH PRESSURE IN HPA 1007.9 999.2 997.7 999.9 1002.2 1004.0 1002.7 995.1 1007.0 1002.2 1011.1 1005.9 995.1 DAY 23 19 19 19 15 15 10 27 6 6 8 11 MEAN QFF PRESSURE IN HPA 1019.4 1016.8 1017.0 1016.6 1010.9 1011.5 1007.6 1007.4 1013.5 1017.0 1018.4 1019.9 1014.7 MAX. QFF PRESSURE IN HPA 1028.4 1027.1 1026.5 1031.0 1021.0 1023.5 1012.7 1017.3 1021.6 1024.1 1031.6 1028.3 1031.6 DAY 2 6 5 22 9 11 23 30 18 12 14 30 MIN. QFF PRESSURE IN HPA 1008.1 999.5 998.0 1000.2 1002.6 1004.4 1003.1 995.5 1007.4 1002.6 1011.4 1006.2 995.5 DAY 23 19 19 19 15 15 10 27 6 6 8 11 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1022.0 1019.4 1020.2 1019.6 1014.0 1014.6 1010.6 1010.3 1016.3 1020.0 1021.2 1022.5 1017.6 MAX. QFE PRESSURE IN HPA 1031.3 1029.6 1030.2 1033.6 1023.9 1027.2 1015.7 1019.4 1024.1 1027.3 1034.6 1031.1 1034.6 DAY 2 16 5 22 9 11 23 30 18 11 14 30 MIN. QFE PRESSURE IN HPA 1010.4 1002.2 1001.7 1001.2 1005.7 1008.0 1006.2 997.9 1010.0 1005.3 1015.0 1008.7 997.9 DAY 30 19 19 19 20 20 10 27 6 6 8 11 MEAN QNH PRESSURE IN HPA 1019.1 1016.6 1017.4 1016.7 1011.2 1011.8 1007.8 1007.5 1013.5 1017.1 1018.4 1019.7 1014.7 MAX. QNH PRESSURE IN HPA 1028.4 1026.7 1027.3 1030.7 1021.1 1024.4 1012.9 1016.6 1021.3 1024.5 1031.7 1028.2 1031.7 DAY 2 16 5 22 9 11 23 30 18 11 14 30 MIN. QNH PRESSURE IN HPA 1007.6 999.4 998.9 998.4 1002.9 1005.2 1003.4 995.1 1007.2 1002.5 1012.2 1005.9 995.1 DAY 30 19 19 19 20 20 10 27 6 6 8 11 MEAN QFF PRESSURE IN HPA 1019.3 1016.9 1017.6 1017.0 1011.5 1012.1 1008.2 1007.9 1013.8 1017.5 1018.7 1019.9 1015.0 MAX. QFF PRESSURE IN HPA 1028.7 1027.0 1027.6 1031.0 1021.4 1024.7 1013.3 1016.9 1021.6 1024.8 1032.0 1028.5 1032.0 DAY 2 16 5 22 9 11 23 30 18 31 14 30 MIN. QFF PRESSURE IN HPA 1007.8 999.7 999.2 998.7 1003.3 1005.6 1003.8 995.5 1007.6 1002.8 1012.5 1006.2 995.5 DAY 30 19 19 19 20 20 10 27 6 6 8 11 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.9 1020.3 1020.9 1020.3 1014.3 1014.7 1010.9 1010.6 1016.8 1020.4 1022.1 1023.7 1018.1 MAX. QFE PRESSURE IN HPA 1032.7 1030.2 1030.9 1034.1 1024.6 1027.1 1015.3 1019.4 1025.9 1029.9 1036.0 1031.5 1036.0 DAY 2 16 5 22 9 11 23 30 18 31 14 30 MIN. QFE PRESSURE IN HPA 1011.4 1003.6 1006.0 1000.7 1005.7 1007.5 1006.4 998.5 1009.8 1006.6 1015.7 1011.8 998.5 DAY 30 19 19 19 26 20 10 27 8 6 7 11 MEAN QNH PRESSURE IN HPA 1020.1 1017.4 1018.0 1017.5 1011.4 1011.8 1008.1 1007.8 1013.9 1017.6 1019.2 1020.9 1015.3 MAX. QNH PRESSURE IN HPA 1029.8 1027.3 1028.0 1031.2 1021.8 1024.3 1012.5 1016.6 1023.1 1027.0 1033.1 1028.6 1033.1 DAY 2 16 5 22 9 11 23 30 18 31 14 30 MIN. QNH PRESSURE IN HPA 1008.6 1000.8 1003.2 997.9 1002.9 1004.7 1003.6 995.7 1007.0 1003.8 1012.9 1009.0 995.7 DAY 30 19 19 19 26 20 10 27 8 6 7 11 MEAN QFF PRESSURE IN HPA 1020.3 1017.7 1018.3 1017.8 1011.8 1012.2 1008.5 1008.2 1014.3 1017.9 1019.5 1021.1 1015.6 MAX. QFF PRESSURE IN HPA 1030.1 1027.6 1028.3 1031.5 1022.1 1024.6 1012.9 1016.9 1023.4 1027.4 1033.4 1028.9 1033.4 DAY 2 16 5 22 9 11 23 30 18 31 14 30 MIN. QFF PRESSURE IN HPA 1008.8 1001.1 1003.5 998.2 1003.3 1005.1 1004.0 996.1 1007.4 1004.2 1013.2 1009.3 996.1 DAY 30 19 19 19 26 20 10 27 8 6 7 11 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1022.2 1020.0 1020.5 1020.4 1014.0 1014.3 1010.7 1010.1 1016.1 1019.7 1021.5 1023.2 1017.7 MAX. QFE PRESSURE IN HPA 1031.7 1029.2 1030.9 1033.3 1024.4 1026.6 1015.3 1017.9 1025.9 1031.0 1035.4 1030.2 1035.4 DAY 2 16 5 22 9 11 31 30 18 31 14 27 MIN. QFE PRESSURE IN HPA 1012.4 1007.1 1004.5 999.6 1004.5 1007.2 1005.6 998.9 1008.9 1006.9 1013.7 1012.8 998.9 DAY 22 19 18 19 15 20 13 27 8 14 3 11 MEAN QNH PRESSURE IN HPA 1019.4 1017.1 1017.7 1017.6 1011.2 1011.5 1007.9 1007.3 1013.2 1016.8 1018.6 1020.3 1014.9 MAX. QNH PRESSURE IN HPA 1028.8 1026.3 1028.0 1030.4 1021.6 1023.8 1012.5 1015.1 1023.1 1028.1 1032.5 1027.3 1032.5 DAY 2 16 5 22 9 11 31 30 18 31 14 27 MIN. QNH PRESSURE IN HPA 1009.6 1004.3 1001.7 996.8 1001.7 1004.4 1002.8 996.1 1006.1 1004.1 1010.9 1010.0 996.1 DAY 22 19 18 19 15 20 13 27 8 14 3 11 MEAN QFF PRESSURE IN HPA 1019.6 1017.4 1018.0 1017.9 1011.5 1011.9 1008.3 1007.7 1013.6 1017.2 1018.9 1020.6 1015.2 MAX. QFF PRESSURE IN HPA 1029.1 1026.6 1028.3 1030.7 1021.9 1024.1 1012.9 1015.5 1023.4 1028.4 1032.8 1027.6 1032.8 DAY 2 16 5 22 9 11 31 30 18 31 14 27 MIN. QFF PRESSURE IN HPA 1009.8 1004.6 1002.0 997.2 1002.1 1004.8 1003.2 996.5 1006.5 1004.5 1011.2 1010.3 996.5 DAY 22 19 18 19 15 20 13 27 8 14 3 11 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1021.4 1019.1 1019.8 1019.5 1013.1 1013.4 1009.9 1009.1 1015.3 1019.0 1020.6 1022.4 1016.9 MAX. QFE PRESSURE IN HPA 1030.9 1027.7 1030.0 1032.0 1023.7 1024.4 1015.3 1018.3 1025.1 1031.0 1034.3 1029.8 1034.3 DAY 2 16 5 22 8 11 31 29 18 31 14 15 MIN. QFE PRESSURE IN HPA 1011.7 1005.0 1002.0 997.7 1003.0 1006.7 1004.1 999.1 1007.9 1003.8 1011.7 1011.8 997.7 DAY 22 18 18 19 15 20 13 27 8 14 3 10 MEAN QNH PRESSURE IN HPA 1018.6 1016.2 1016.9 1016.6 1010.3 1010.6 1007.1 1006.3 1012.4 1016.2 1017.7 1019.6 1014.0 MAX. QNH PRESSURE IN HPA 1028.0 1024.9 1027.1 1029.1 1020.9 1021.6 1012.5 1015.5 1022.3 1028.1 1031.4 1026.9 1031.4 DAY 2 16 5 22 8 11 31 29 18 31 14 15 MIN. QNH PRESSURE IN HPA 1008.9 1002.2 999.2 994.9 1000.2 1003.9 1001.3 996.3 1005.1 1001.0 1008.9 1009.0 994.9 DAY 22 18 18 19 15 20 13 27 8 14 3 10 MEAN QFF PRESSURE IN HPA 1018.9 1016.5 1017.2 1017.0 1010.7 1011.0 1007.5 1006.7 1012.8 1016.5 1018.0 1019.8 1014.4 MAX. QFF PRESSURE IN HPA 1028.3 1025.1 1027.4 1029.4 1021.2 1021.9 1012.9 1015.9 1022.6 1028.4 1031.7 1027.2 1031.7 DAY 2 16 5 22 8 11 31 29 18 31 14 15 MIN. QFF PRESSURE IN HPA 1009.1 1002.5 999.5 995.3 1000.6 1004.3 1001.7 996.7 1005.5 1001.4 1009.2 1009.3 995.3 DAY 22 18 18 19 15 20 13 27 8 14 3 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1970 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1022.0 1019.5 1020.0 1019.5 1013.0 1013.1 1009.5 1008.9 1015.2 1019.2 1020.9 1022.9 1017.0 MAX. QFE PRESSURE IN HPA 1030.1 1027.7 1030.0 1031.0 1023.7 1023.9 1014.9 1019.2 1025.1 1028.9 1034.3 1030.7 1034.3 DAY 2 15 5 22 8 10 31 29 18 31 14 15 MIN. QFE PRESSURE IN HPA 1011.4 1005.0 1001.3 998.9 1003.4 1006.6 1004.1 1001.1 1008.0 1005.0 1010.4 1011.8 998.9 DAY 22 18 18 19 15 20 13 27 6 14 3 10 MEAN QNH PRESSURE IN HPA 1019.1 1016.7 1017.2 1016.6 1010.2 1010.2 1006.7 1006.1 1012.4 1016.4 1018.0 1020.1 1014.1 MAX. QNH PRESSURE IN HPA 1027.2 1024.9 1027.1 1028.1 1020.9 1021.1 1012.1 1016.4 1022.3 1026.0 1031.4 1027.8 1031.4 DAY 2 15 5 22 8 10 31 29 18 31 14 15 MIN. QNH PRESSURE IN HPA 1008.6 1002.2 998.5 996.1 1000.6 1003.8 1001.3 998.3 1005.2 1002.2 1007.6 1009.0 996.1 DAY 22 18 18 19 15 20 13 27 6 14 3 10 MEAN QFF PRESSURE IN HPA 1019.4 1016.9 1017.4 1016.9 1010.6 1010.6 1007.1 1006.5 1012.8 1016.7 1018.3 1020.3 1014.5 MAX. QFF PRESSURE IN HPA 1027.5 1025.1 1027.4 1028.4 1021.2 1021.4 1012.5 1016.8 1022.6 1026.4 1031.7 1028.1 1031.7 DAY 2 16 5 22 8 10 31 29 18 31 14 15 MIN. QFF PRESSURE IN HPA 1008.8 1002.5 998.8 996.5 1001.0 1004.2 1001.7 998.7 1005.6 1002.6 1007.9 1009.2 996.5 DAY 22 18 18 19 15 20 13 27 6 14 3 10 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1022.4 1019.6 1020.3 1019.5 1013.9 1013.6 1010.1 1009.8 1015.8 1020.0 1021.1 1023.1 1017.4 MAX. QFE PRESSURE IN HPA 1030.4 1029.3 1030.0 1032.1 1024.1 1025.4 1016.6 1020.5 1025.1 1028.0 1034.3 1031.1 1034.3 DAY 1 15 5 21 8 10 31 29 18 11 14 29 MIN. QFE PRESSURE IN HPA 1011.4 1003.4 1000.2 998.4 1005.4 1006.2 1005.6 999.4 1008.5 1007.4 1010.0 1011.4 998.4 DAY 22 18 18 19 14 7 9 26 6 5 3 10 MEAN QNH PRESSURE IN HPA 1019.6 1016.8 1017.5 1016.7 1011.1 1010.8 1007.3 1006.9 1013.0 1017.2 1018.2 1020.2 1014.6 MAX. QNH PRESSURE IN HPA 1027.5 1026.4 1027.1 1029.2 1021.3 1022.6 1013.8 1017.7 1022.3 1025.1 1031.4 1028.2 1031.4 DAY 1 15 5 21 8 10 31 29 18 11 14 29 MIN. QNH PRESSURE IN HPA 1008.6 1000.6 997.4 995.6 1002.6 1003.4 1002.8 996.6 1005.7 1004.6 1007.2 1008.6 995.6 DAY 22 18 18 19 14 7 9 26 6 5 3 10 MEAN QFF PRESSURE IN HPA 1019.8 1017.1 1017.7 1017.0 1011.5 1011.2 1007.7 1007.4 1013.4 1017.5 1018.5 1020.5 1014.9 MAX. QFF PRESSURE IN HPA 1027.8 1026.7 1027.4 1029.5 1021.6 1022.9 1014.2 1018.1 1022.6 1025.5 1031.7 1028.5 1031.7 DAY 1 15 5 21 8 10 31 29 18 11 14 29 MIN. QFF PRESSURE IN HPA 1008.8 1000.9 997.7 996.0 1003.0 1003.8 1003.2 997.0 1006.1 1005.0 1007.5 1008.9 996.0 DAY 22 18 18 19 14 7 9 26 6 5 3 10 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1022.4 1019.3 1019.9 1019.1 1013.8 1013.5 1010.3 1009.8 1015.9 1019.8 1021.0 1022.8 1017.3 MAX. QFE PRESSURE IN HPA 1031.0 1029.7 1029.6 1033.6 1023.6 1026.0 1016.6 1020.5 1024.1 1027.3 1033.0 1030.9 1033.6 DAY 1 5 5 21 8 10 31 29 17 11 13 29 MIN. QFE PRESSURE IN HPA 1010.7 1002.8 1000.9 997.0 1004.4 1005.2 1004.8 997.9 1009.6 1006.1 1013.9 1009.8 997.0 DAY 22 18 18 19 14 14 9 26 6 5 7 10 MEAN QNH PRESSURE IN HPA 1019.5 1016.5 1017.0 1016.3 1011.0 1010.7 1007.5 1007.0 1013.0 1017.0 1018.1 1019.9 1014.5 MAX. QNH PRESSURE IN HPA 1028.1 1026.8 1026.7 1030.7 1020.8 1023.2 1013.8 1017.7 1021.3 1024.5 1030.1 1028.0 1030.7 DAY 1 5 5 21 8 10 31 29 17 11 13 29 MIN. QNH PRESSURE IN HPA 1007.9 1000.0 998.1 994.2 1001.6 1002.4 1002.0 995.1 1006.8 1003.3 1011.1 1007.0 994.2 DAY 22 18 18 19 14 14 9 26 6 5 7 10 MEAN QFF PRESSURE IN HPA 1019.8 1016.7 1017.3 1016.6 1011.4 1011.1 1007.9 1007.4 1013.4 1017.3 1018.4 1020.2 1014.8 MAX. QFF PRESSURE IN HPA 1028.4 1027.1 1027.0 1031.0 1021.1 1023.5 1014.2 1018.0 1021.6 1024.8 1030.4 1028.3 1031.0 DAY 1 5 5 21 8 10 31 29 17 11 13 29 MIN. QFF PRESSURE IN HPA 1008.1 1000.3 998.5 994.6 1002.0 1002.8 1002.4 995.5 1007.2 1003.7 1011.4 1007.3 994.6 DAY 22 18 18 19 14 14 9 26 6 5 7 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 7.5 7.9 10.6 13.5 20.1 22.8 26.4 25.8 23.9 18.6 14.5 10.0 16.8 MINIMUN AIR TEMPERATURE (C) 4.2 4.5 7.4 10.8 17.1 19.0 22.0 21.9 18.8 14.2 10.4 6.2 13.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 1 6 23 26 9 0 0 0 65 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 4 2 0 0 0 0 0 0 0 0 0 0 6 TEMPERATURE RECORDS LOWEST(C) -1.0 -1.0 3.0 6.0 13.0 14.0 19.0 20.0 15.0 11.0 7.0 1.0 -1.0 DAY 16 15 2 3 3 20 26 3 20 12 2 23 MAXIMUM AIR TEMPERATURE (C) 11.5 11.9 14.7 17.1 23.9 27.1 31.1 30.0 29.2 23.4 20.1 15.1 21.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 6 24 22 13 0 0 0 65 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.0 20.0 24.0 25.0 28.0 31.0 34.0 32.0 31.0 29.0 25.0 21.0 34.0 DAY 2 10 11 14 24 10 22 7 10 7 14 8 DIF. BETWEEN (MAX.-MIN.) (C) 7.3 7.4 7.3 6.3 6.8 8.1 9.1 8.1 10.4 9.2 9.7 8.9 8.3 MEAN DAILY TEMP. (MDT) (C) 7.9 8.2 11.0 14.0 20.5 23.1 26.5 26.0 24.0 18.8 15.2 10.7 17.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 17.5 65.0 171.5 154.0 89.5 2.0 0.0 0.0 499.5 HEATING DEG. DAYS(BASE 18 0C) 314.0 274.5 216.5 123.0 2.5 0.0 0.0 0.0 0.0 7.0 83.5 227.5 1248.5 DEWPOINT (MEAN C) 5.2 5.8 8.3 10.6 16.2 17.7 21.5 21.1 19.4 15.2 12.0 7.6 13.4 MIXING RATIO (G/KG) 5.50 5.77 6.83 8.01 11.61 12.79 16.26 15.85 14.22 10.81 8.73 6.59 10.25 VAPOUR PRESSURE (HPA) 9.01 9.35 11.07 12.92 18.59 20.37 25.71 25.11 22.72 17.42 14.11 10.68 16.42 SATURATION DEF. (HPA) 1.62 1.51 2.00 2.85 5.31 7.86 9.13 8.51 7.72 4.43 2.70 1.98 4.63 RELATIVE HUMIDITY (MEAN %) 86 88 86 84 79 74 76 77 77 82 86 86 82 RELATIVE HUMIDITY (MAX. %) 96 97 96 94 92 91 92 92 94 96 97 96 94 RELATIVE HUMIDITY (MIN. %) 71 74 73 72 64 58 58 60 59 64 67 70 66 RELATIVE HUMIDITY (MEAN% 03UTC) 94 95 94 92 91 86 88 90 92 94 95 94 92 RELATIVE HUMIDITY (MEAN% 09UTC) 73 76 78 74 68 62 61 64 63 67 68 75 69 RELATIVE HUMIDITY (MEAN% 15UTC) 84 85 83 79 73 67 68 68 67 76 85 82 76 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 58.0 100.4 52.6 51.2 0.9 4.0 0.0 8.3 21.0 372.3 67.0 223.4 959.1 DAYS WITH PRECIPITATION >=10 2 3 2 1 0 0 0 0 1 4 2 7 22 DAYS WITH PRECIPITATION >= 5 6 6 3 3 0 0 0 0 1 5 3 10 37 DAYS WITH PRECIPITATION >= 1 8 9 8 8 0 1 0 4 2 5 6 12 63 DAYS WITH PRECIPITATION 8 10 9 11 2 1 0 5 2 5 6 13 72 GREATEST DAILY PRECIPITATION 13.0 30.0 20.0 26.0 0.6 4.0 0.0 4.0 20.0 219.0 37.0 47.0 219.0 DAY 15 8 21 2 29 19 ** 24 30 1 11 16 DAY WITH THUNDER STORM 0 0 0 0 0 0 0 0 1 0 0 0 1 DAYS WITH SNOW OR SLEET 1 0 0 0 0 0 0 0 0 0 0 0 1 DAYS WITH DUST 0 0 0 0 0 0 0 0 0 0 0 0 0 WIND DIRECTION (PREVAILING) 90 270 45 45 315 270 270 315 225 45 225 225 315 PREVAILING WIND SPEED(KNOTS) 5.8 7.0 5.0 6.0 5.7 7.5 6.7 6.6 4.2 4.9 3.8 4.3 6.1 PREVAILING WIND PERCENT 9.7 12.1 14.9 18.8 18.5 20.4 16.1 16.5 14.2 9.7 8.3 8.1 10.4 CALMS PERCENT OF WIND 52.8 48.7 41.5 40.4 41.9 38.3 42.7 44.0 41.7 52.8 64.2 58.1 47.3 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 61 349 12 9 314 300 302 290 328 50 207 177 322 VECTOR WIND MAGNITUDE(KNOTS) 0.6 0.9 1.2 1.6 2.0 2.6 2.3 2.2 1.2 0.4 0.2 0.2 1.0 WIND STEADINESES (MEAN %) 27.3 30.0 35.3 47.1 62.5 68.4 67.6 68.7 40.0 16.7 12.5 9.1 34.5 WIND SPEED (MEAN KNOTS) 2.2 3.0 3.4 3.4 3.2 3.8 3.4 3.2 3.0 2.4 1.6 2.2 2.9 FASTEST WIND DIRECTION 90 320 280 270 270 280 280 330 90 310 300 310 320 FASTEST WIND SPEED (KNOTS) 10 28 11 26 12 15 12 15 12 18 12 13 28 DAY 11 10 12 13 17 27 5 5 25 8 11 20 DAYS WITH SKY CLEAR (0-2)/8 13 9 9 4 9 14 22 10 25 19 11 9 154 DAYS WITH P.CLOUDY (3-6)/8 8 6 8 14 18 12 9 11 3 6 11 11 117 DAYS WITH CLOUDY (7-8)/8 10 13 14 12 4 4 0 10 2 6 8 11 94 DAYS WITH VISIBILITY =< 2 KM 4 1 3 1 0 0 0 0 0 1 0 0 10 DURATION OF SUNSHINE HOURS 140.7 122.7 151.9 130.7 235.6 253.8 312.9 186.6 264.0 195.8 144.3 137.7 2276.7 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1027.9 1017.5 1019.5 1017.5 1015.0 1011.0 1009.7 1011.2 1017.5 1021.0 1020.3 1019.4 1017.3 MAX. QFE PRESSURE IN HPA 1042.1 1031.2 1033.4 1029.7 1024.4 1021.3 1016.2 1017.5 1026.9 1033.2 1031.1 1034.3 1042.1 DAY-HOUR 8-18 1- 9 5-18 9- 6 1-21 17- 6 12- 6 24- 6 23- 9 31- 6 20- 3 31-18 MIN. QFE PRESSURE IN HPA 1013.2 995.6 1007.9 997.8 1005.7 1001.1 999.7 1005.9 1008.3 1005.6 1008.0 1004.9 995.6 DAY-HOUR 13-12 27-12 11-15 14- 9 11-15 21-15 4-18 18-18 8- 0 8-15 18-12 7-18 MEAN QNH PRESSURE IN HPA 1025.0 1014.7 1016.7 1014.7 1012.2 1008.2 1006.9 1008.4 1014.6 1018.2 1017.5 1016.6 1014.5 MAX. QNH PRESSURE IN HPA 1039.2 1028.3 1030.5 1026.8 1021.6 1018.5 1013.4 1014.7 1024.1 1030.3 1028.2 1031.4 1039.2 DAY-HOUR 8-18 1- 9 5-18 9- 6 1-21 17- 6 12- 6 24- 6 23- 9 31- 6 20- 3 31-18 MIN. QNH PRESSURE IN HPA 1010.4 992.8 1005.1 995.0 1002.9 998.3 996.9 1003.1 1005.5 1002.8 1005.2 1002.1 992.8 DAY-HOUR 13-12 27-12 11-15 14- 9 11-15 21-15 4-18 18-18 8- 0 8-15 18-12 7-18 MEAN QFF PRESSURE IN HPA 1025.3 1014.9 1016.9 1015.0 1012.5 1008.6 1007.3 1008.8 1015.0 1018.5 1017.8 1016.9 1014.8 MAX. QFF PRESSURE IN HPA 1039.5 1028.6 1030.8 1027.1 1021.9 1018.8 1013.8 1015.1 1024.4 1030.6 1028.5 1031.7 1039.5 DAY-HOUR 8-18 1- 9 5-18 9- 6 1-21 17- 6 12- 6 24- 9 23- 9 31- 6 20- 3 31-21 MIN. QFF PRESSURE IN HPA 1010.6 993.1 1005.4 995.3 1003.3 998.7 997.3 1003.5 1005.9 1003.2 1005.5 1002.4 993.1 DAY-HOUR 13-12 27-12 11-15 14- 9 11-15 21-15 4-18 19- 0 8- 0 8-15 18-12 7-18 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1028.2 1017.6 1019.3 1017.0 1014.6 1010.9 1009.5 1011.2 1017.1 1020.4 1020.2 1019.3 1017.1 MAX. QFE PRESSURE IN HPA 1041.1 1029.5 1033.2 1028.1 1023.4 1021.0 1014.8 1017.0 1024.7 1032.4 1030.6 1029.1 1041.1 DAY 9 1 6 9 2 17 12 21 23 31 20 28 MIN. QFE PRESSURE IN HPA 1014.6 1005.4 1008.1 999.3 1007.0 1001.2 1000.6 1005.9 1008.3 1007.7 1009.9 1005.3 999.3 DAY 14 8 12 14 26 21 5 19 8 24 18 13 MEAN QNH PRESSURE IN HPA 1025.3 1014.7 1016.4 1014.1 1011.7 1008.1 1006.6 1008.4 1014.2 1017.5 1017.3 1016.5 1014.2 MAX. QNH PRESSURE IN HPA 1038.2 1026.6 1030.3 1025.2 1020.6 1018.2 1012.0 1014.2 1021.9 1029.5 1027.7 1026.2 1038.2 DAY 9 1 6 9 2 17 12 21 23 31 20 28 MIN. QNH PRESSURE IN HPA 1011.8 1002.6 1005.3 996.5 1004.2 998.4 997.8 1003.1 1005.5 1004.9 1007.1 1002.5 996.5 DAY 14 8 12 14 26 21 5 19 8 24 18 13 MEAN QFF PRESSURE IN HPA 1025.5 1015.0 1016.7 1014.4 1012.1 1008.5 1007.1 1008.8 1014.6 1017.9 1017.6 1016.7 1014.6 MAX. QFF PRESSURE IN HPA 1038.5 1026.9 1030.6 1025.5 1020.9 1018.5 1012.4 1014.6 1022.2 1029.8 1028.0 1026.5 1038.5 DAY 9 1 6 9 2 17 12 21 23 31 20 28 MIN. QFF PRESSURE IN HPA 1012.0 1002.9 1005.6 996.8 1004.6 998.8 998.2 1003.5 1005.9 1005.2 1007.4 1002.8 996.8 DAY 14 8 12 14 26 21 5 19 8 24 18 13 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1027.9 1017.8 1019.7 1017.5 1015.2 1011.5 1010.3 1011.7 1017.8 1021.3 1020.7 1019.3 1017.5 MAX. QFE PRESSURE IN HPA 1039.5 1029.5 1032.6 1028.5 1023.4 1021.2 1016.0 1017.0 1026.0 1032.4 1031.1 1031.1 1039.5 DAY 9 1 6 9 2 17 12 21 23 31 20 28 MIN. QFE PRESSURE IN HPA 1014.7 1006.3 1008.2 998.7 1007.0 1001.2 1002.4 1007.0 1009.6 1008.3 1009.9 1005.3 998.7 DAY 14 10 28 14 26 21 21 19 7 24 18 13 MEAN QNH PRESSURE IN HPA 1025.0 1014.9 1016.9 1014.7 1012.3 1008.7 1007.4 1008.9 1014.9 1018.4 1017.8 1016.5 1014.7 MAX. QNH PRESSURE IN HPA 1036.6 1026.6 1029.7 1025.6 1020.6 1018.4 1013.2 1014.2 1023.2 1029.5 1028.2 1028.2 1036.6 DAY 9 1 6 9 2 17 12 21 23 31 20 28 MIN. QNH PRESSURE IN HPA 1011.9 1003.5 1005.4 995.9 1004.2 998.4 999.6 1004.2 1006.8 1005.5 1007.1 1002.5 995.9 DAY 14 10 28 14 26 21 21 19 7 24 18 13 MEAN QFF PRESSURE IN HPA 1025.2 1015.2 1017.2 1014.9 1012.7 1009.0 1007.8 1009.3 1015.3 1018.7 1018.1 1016.7 1015.0 MAX. QFF PRESSURE IN HPA 1036.8 1026.9 1030.0 1025.9 1020.9 1018.7 1013.6 1014.6 1023.5 1029.8 1028.5 1028.5 1036.8 DAY 9 1 6 9 2 17 12 21 23 31 20 28 MIN. QFF PRESSURE IN HPA 1012.1 1003.7 1005.7 996.2 1004.6 998.8 1000.0 1004.6 1007.2 1005.8 1007.4 1002.8 996.2 DAY 14 10 28 14 26 21 21 19 7 24 18 13 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION BABOLSAR (40736) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 43 N LONGITUDE 52 39 E DATA PROCESSING CENTER ELEVATION -21.0 M MEANS AND EXTREMES FOR THE YEAR 1971 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1028.5 1018.3 1020.4 1017.9 1015.8 1011.7 1010.6 1012.0 1018.3 1022.1 1021.4 1020.1 1018.1 MAX. QFE PRESSURE IN HPA 1038.4 1030.7 1033.0 1029.7 1024.0 1021.3 1016.2 1017.5 1026.7 1033.2 1029.9 1032.7 1038.4 DAY 9 1 6 9 2 17 12 24 23 31 1 28 MIN. QFE PRESSURE IN HPA 1015.5 1004.4 1009.0 998.2 1007.4 1001.5 1003.3 1007.2 1010.8 1010.0 1009.4 1008.5 998.2 DAY 13 27 28 14 26 21 21 18 7 7 18 13 MEAN QNH PRESSURE IN HPA 1025.7 1015.5 1017.5 1015.1 1013.0 1008.9 1007.8 1009.2 1015.5 1019.3 1018.5 1017.3 1015.3 MAX. QNH PRESSURE IN HPA 1035.5 1027.8 1030.1 1026.8 1021.2 1018.5 1013.4 1014.7 1023.9 1030.3 1027.0 1029.8 1035.5 DAY 9 1 6 9 2 17 12 24 23 31 1 28 MIN. QNH PRESSURE IN HPA 1012.7 1001.6 1006.2 995.4 1004.6 998.7 1000.5 1004.4 1008.0 1007.2 1006.6 1005.7 995.4 DAY 13 27 28 14 26 21 21 18 7 7 18 13 MEAN QFF PRESSURE IN HPA 1025.9 1015.7 1017.8 1015.4 1013.4 1009.3 1008.2 1009.6 1015.9 1019.6 1018.8 1017.5 1015.6 MAX. QFF PRESSURE IN HPA 1035.8 1028.1 1030.4 1027.1 1021.5 1018.8 1013.8 1015.1 1024.2 1030.6 1027.3 1030.1 1035.8 DAY 9 1 6 9 2 17 12 24 23 31 1 28 MIN. QFF PRESSURE IN HPA 1012.9 1001.9 1006.5 995.7 1005.0 999.1 1000.9 1004.8 1008.4 1007.6 1006.9 1006.0 995.7 DAY 13 27 28 14 26 21 21 18 7 7 18 13 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1027.8 1017.9 1020.1 1017.7 1015.7 1011.5 1010.5 1011.7 1018.0 1021.6 1020.6 1019.6 1017.7 MAX. QFE PRESSURE IN HPA 1038.9 1031.2 1033.2 1029.7 1023.8 1019.4 1015.7 1017.5 1026.9 1032.3 1030.7 1032.5 1038.9 DAY 8 1 6 9 2 17 12 24 23 31 20 31 MIN. QFE PRESSURE IN HPA 1014.0 1000.3 1009.0 997.8 1008.4 1002.3 1003.3 1007.4 1010.5 1009.0 1008.8 1007.9 997.8 DAY 13 27 28 14 26 21 21 18 8 7 18 14 MEAN QNH PRESSURE IN HPA 1024.9 1015.0 1017.3 1014.9 1012.9 1008.7 1007.7 1008.8 1015.2 1018.7 1017.8 1016.8 1014.9 MAX. QNH PRESSURE IN HPA 1036.0 1028.3 1030.3 1026.8 1021.0 1016.6 1012.9 1014.7 1024.1 1029.4 1027.8 1029.6 1036.0 DAY 8 1 6 9 2 17 12 24 23 31 20 31 MIN. QNH PRESSURE IN HPA 1011.2 997.5 1006.2 995.0 1005.6 999.5 1000.5 1004.6 1007.7 1006.2 1006.0 1005.1 995.0 DAY 13 27 28 14 26 21 21 18 8 7 18 14 MEAN QFF PRESSURE IN HPA 1025.2 1015.3 1017.6 1015.2 1013.3 1009.1 1008.1 1009.3 1015.6 1019.1 1018.1 1017.1 1015.2 MAX. QFF PRESSURE IN HPA 1036.3 1028.6 1030.6 1027.1 1021.3 1016.9 1013.3 1015.1 1024.4 1029.7 1028.1 1029.9 1036.3 DAY 8 1 6 9 2 17 12 24 23 31 20 31 MIN. QFF PRESSURE IN HPA 1011.4 997.8 1006.5 995.3 1006.0 999.9 1000.9 1005.0 1008.1 1006.6 1006.3 1005.4 995.3 DAY 13 27 28 14 26 21 21 18 8 7 18 14 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1026.9 1016.7 1019.1 1017.2 1014.8 1010.6 1009.4 1010.6 1017.0 1020.4 1019.6 1018.6 1016.7 MAX. QFE PRESSURE IN HPA 1039.5 1030.3 1031.7 1028.9 1022.8 1019.0 1014.5 1016.3 1025.8 1031.4 1029.4 1032.9 1039.5 DAY 8 1 6 9 2 16 11 24 23 31 20 31 MIN. QFE PRESSURE IN HPA 1013.2 995.6 1008.9 997.8 1007.8 1001.5 1003.0 1006.4 1009.4 1006.1 1008.0 1006.0 995.6 DAY 13 27 11 14 11 21 21 18 7 8 18 7 MEAN QNH PRESSURE IN HPA 1024.1 1013.8 1016.3 1014.4 1011.9 1007.8 1006.6 1007.8 1014.2 1017.6 1016.7 1015.7 1013.9 MAX. QNH PRESSURE IN HPA 1036.6 1027.4 1028.8 1026.0 1020.0 1016.2 1011.7 1013.5 1023.0 1028.5 1026.5 1030.0 1036.6 DAY 8 1 6 9 2 16 11 24 23 31 20 31 MIN. QNH PRESSURE IN HPA 1010.4 992.8 1006.1 995.0 1005.0 998.7 1000.2 1003.6 1006.6 1003.3 1005.2 1003.2 992.8 DAY 13 27 11 14 11 21 21 18 7 8 18 7 MEAN QFF PRESSURE IN HPA 1024.3 1014.1 1016.5 1014.7 1012.3 1008.2 1007.0 1008.2 1014.6 1017.9 1017.0 1016.0 1014.2 MAX. QFF PRESSURE IN HPA 1036.9 1027.7 1029.1 1026