STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 6.2 5.6 8.9 14.3 22.0 26.2 27.5 27.4 20.5 8.1 8.2 4.8 15.0 MINIMUN AIR TEMPERATURE (C) -0.4 -1.1 3.0 5.9 12.2 14.2 17.0 16.3 10.7 2.2 2.4 -1.3 6.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 3 0 0 0 0 0 3 DAYS WITH MINIMUM TEMP. <=-4 3 6 0 0 0 0 0 0 0 1 1 7 18 DAYS WITH FREEZING MIN.<= 0 19 18 4 3 0 0 0 0 0 13 11 18 86 TEMPERATURE RECORDS LOWEST(C) -7.0 -6.8 -2.0 -1.0 4.0 7.4 10.4 8.6 5.2 -4.8 -4.0 -9.6 -9.6 DAY 22 12 16 8 8 22 5 31 25 28 30 30 MAXIMUM AIR TEMPERATURE (C) 11.2 10.7 13.8 19.8 27.1 30.7 32.1 32.5 26.4 15.5 16.0 12.4 20.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 11 16 23 26 4 0 0 0 81 DAYS WITH MAXIMUM TEMP. <= 0 0 1 0 0 0 0 0 0 0 0 0 1 2 TEMPERATURE RECORDS HIGHEST(C) 18.0 20.2 22.2 32.0 35.2 34.3 36.0 35.5 36.5 29.6 27.2 22.6 36.5 DAY 25 26 14 26 25 5 22 19 6 3 7 24 DIF. BETWEEN (MAX.-MIN.) (C) 11.6 11.8 10.8 13.9 14.9 16.5 15.1 16.2 15.7 13.3 13.6 13.7 13.9 MEAN DAILY TEMP. (MDT) (C) 5.4 4.8 8.4 12.9 19.7 22.4 24.5 24.4 18.5 8.8 9.2 5.6 13.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 23.4 56.4 110.8 110.2 10.6 0.0 0.0 0.0 311.5 HEATING DEG. DAYS(BASE 18 0C) 364.9 369.5 298.4 164.4 25.1 0.1 0.2 0.0 26.2 285.3 263.6 385.9 2183.5 DEWPOINT (MEAN C) -2.1 -1.8 2.9 5.4 8.7 5.6 10.4 8.3 5.4 0.4 -0.0 -3.7 3.3 MIXING RATIO (G/KG) 3.80 3.91 5.54 6.69 8.21 6.78 9.25 8.07 6.52 4.62 4.47 3.37 5.94 VAPOUR PRESSURE (HPA) 5.39 5.53 7.78 9.41 11.53 9.52 12.92 11.30 9.19 6.57 6.34 4.79 8.36 SATURATION DEF. (HPA) 4.55 4.16 4.13 8.36 15.95 25.19 24.76 26.19 16.24 5.39 5.46 4.54 12.08 RELATIVE HUMIDITY (MEAN %) 60 64 71 60 47 29 37 33 41 64 61 59 52 RELATIVE HUMIDITY (MAX. %) 76 83 91 81 67 42 51 52 61 85 85 77 71 RELATIVE HUMIDITY (MIN. %) 47 48 53 45 35 21 28 23 28 45 40 40 38 RELATIVE HUMIDITY (MEAN% 03UTC) 72 77 91 80 64 42 50 50 61 79 74 71 68 RELATIVE HUMIDITY (MEAN% 09UTC) 50 56 60 51 38 24 30 24 31 49 44 45 42 RELATIVE HUMIDITY (MEAN% 15UTC) 66 65 68 58 49 28 37 30 38 57 58 58 51 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 9.9 32.5 65.5 20.8 8.7 0.9 5.3 12.4 2.2 29.1 5.1 23.4 215.8 DAYS WITH PRECIPITATION >=10 0 1 3 0 0 0 0 1 0 1 0 0 6 DAYS WITH PRECIPITATION >= 5 1 2 4 1 0 0 0 1 0 3 0 3 15 DAYS WITH PRECIPITATION >= 1 1 6 8 4 3 0 1 1 1 5 1 3 34 DAYS WITH PRECIPITATION 8 12 19 16 14 2 5 2 4 9 4 7 102 GREATEST DAILY PRECIPITATION 9.0 13.0 24.0 9.0 4.6 0.9 4.0 12.0 2.0 12.0 4.3 8.5 24.0 DAY 12 21 28 6 6 1 4 5 20 27 29 31 DAY WITH THUNDER STORM 0 1 0 0 0 0 1 0 0 0 0 0 2 DAYS WITH SNOW OR SLEET 1 6 2 1 0 0 0 0 0 2 2 4 18 DAYS WITH DUST 2 0 0 1 0 2 1 0 2 3 0 7 18 WIND DIRECTION (PREVAILING) 315 315 315 135 90 135 90 135 135 90 270 270 315 PREVAILING WIND SPEED(KNOTS) 12.3 12.1 16.8 9.0 8.1 10.1 8.1 8.7 9.6 5.7 9.6 8.4 12.9 PREVAILING WIND PERCENT 33.1 26.4 25.2 19.3 22.6 32.7 18.1 24.5 29.7 15.7 19.6 25.8 15.3 CALMS PERCENT OF WIND 31.8 43.6 22.6 30.0 37.4 26.0 31.6 37.4 37.4 60.1 52.9 47.2 40.1 NO. OF WIND OBSERVATION 154 140 155 150 155 150 155 155 155 248 240 248 2105 VECTOR WIND DIRECTION (MEAN) 301 305 291 300 90 109 84 117 113 99 295 292 310 VECTOR WIND MAGNITUDE(KNOTS) 6.4 3.5 3.7 1.1 1.4 3.3 1.1 2.4 3.4 0.6 2.8 4.0 0.8 WIND STEADINESES (MEAN %) 82.1 60.3 40.7 14.3 24.6 51.6 17.5 49.0 64.2 20.0 60.9 75.5 13.3 WIND SPEED (MEAN KNOTS) 7.8 5.8 9.1 7.7 5.7 6.4 6.3 4.9 5.3 3.0 4.6 5.3 6.0 FASTEST WIND DIRECTION 290 300 310 310 320 300 50 300 280 290 320 240 50 FASTEST WIND SPEED (KNOTS) 39 39 37 47 27 31 49 23 33 31 33 47 49 DAY 27 5 15 5 13 5 24 5 14 26 19 24 DAYS WITH SKY CLEAR (0-2)/8 10 4 2 12 8 26 21 28 20 11 15 14 171 DAYS WITH P.CLOUDY (3-6)/8 14 17 15 11 12 4 10 3 8 11 11 11 127 DAYS WITH CLOUDY (7-8)/8 7 7 14 7 11 0 0 0 2 9 4 6 67 DAYS WITH VISIBILITY =< 2 KM 5 7 10 2 1 0 0 0 0 6 1 6 38 DURATION OF SUNSHINE HOURS 190.5 164.9 128.3 224.9 246.0 362.5 336.4 352.4 258.4 171.7 214.6 185.5 2836.1 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 888.0 887.3 882.1 885.4 885.5 883.9 882.6 882.7 886.8 891.4 890.0 887.6 886.1 MAX. QFE PRESSURE IN HPA 900.3 898.8 893.3 893.6 892.3 888.2 888.2 888.6 894.8 899.3 900.0 900.2 900.3 DAY-HOUR 21- 6 1- 6 23- 6 22- 6 1- 3 6- 6 11- 6 8- 6 24- 6 28-18 30- 6 1- 6 MIN. QFE PRESSURE IN HPA 878.3 876.2 869.6 875.2 878.8 879.8 875.2 877.9 879.6 882.3 879.5 876.9 869.6 DAY-HOUR 27- 9 11- 3 14-12 20- 3 23-12 13-12 3-12 18-15 6-12 4-12 7-12 24- 9 MEAN QNH PRESSURE IN HPA 1022.2 1021.5 1015.6 1019.3 1019.5 1017.6 1016.2 1016.3 1020.9 1026.1 1024.5 1021.8 1020.1 MAX. QNH PRESSURE IN HPA 1036.0 1034.4 1028.2 1028.5 1027.1 1022.5 1022.5 1022.9 1029.9 1034.9 1035.7 1035.9 1036.0 DAY-HOUR 21- 6 1- 6 23- 6 22- 6 1- 3 6- 6 11- 6 8- 6 24- 6 28-18 30- 6 1- 6 MIN. QNH PRESSURE IN HPA 1011.4 1009.0 1001.6 1007.9 1011.9 1013.1 1007.9 1010.9 1012.8 1015.9 1012.7 1009.8 1001.6 DAY-HOUR 27- 9 11- 3 14-12 20- 3 23-12 13-12 3-12 18-15 6-12 4-12 7-12 24- 9 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.9 1024.2 1023.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1040.4 1041.6 1042.6 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** 28-18 30-15 1- 6 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1011.4 1007.5 1005.4 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** 3-12 7-12 24- 9 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 891.3 889.7 887.8 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 898.3 898.8 898.9 ****** DAY ** ** ** ** ** ** ** ** ** 29 30 2 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 885.6 881.3 879.9 ****** DAY ** ** ** ** ** ** ** ** ** 5 8 7 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.0 1024.1 1022.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1033.8 1034.4 1034.5 ****** DAY ** ** ** ** ** ** ** ** ** 29 30 2 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1019.6 1014.7 1013.2 ****** DAY ** ** ** ** ** ** ** ** ** 5 8 7 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.4 1023.2 1023.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1038.6 1039.4 1040.3 ****** DAY ** ** ** ** ** ** ** ** ** 29 30 1 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1014.2 1009.8 1011.9 ****** DAY ** ** ** ** ** ** ** ** ** 3 8 7 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 887.9 887.5 882.3 886.0 886.3 884.8 883.6 883.6 887.8 891.7 890.2 887.9 886.6 MAX. QFE PRESSURE IN HPA 898.8 896.2 893.0 893.1 892.3 888.0 887.3 888.5 894.2 898.7 899.0 899.5 899.5 DAY 21 1 23 22 1 23 11 8 24 29 30 1 MIN. QFE PRESSURE IN HPA 879.6 876.2 873.3 875.2 880.0 881.4 879.6 880.5 882.6 886.1 882.8 879.1 873.3 DAY 3 11 20 20 23 14 8 15 6 9 7 7 MEAN QNH PRESSURE IN HPA 1022.2 1021.6 1015.8 1020.0 1020.3 1018.6 1017.3 1017.3 1022.0 1026.4 1024.7 1022.1 1020.7 MAX. QNH PRESSURE IN HPA 1034.4 1031.4 1027.9 1028.0 1027.1 1022.2 1021.5 1022.8 1029.2 1034.2 1034.6 1035.1 1035.1 DAY 21 1 23 22 1 23 11 8 24 29 30 1 MIN. QNH PRESSURE IN HPA 1012.8 1009.0 1005.8 1007.9 1013.3 1014.8 1012.8 1013.8 1016.2 1020.1 1016.4 1012.3 1005.8 DAY 3 11 20 20 23 14 8 15 6 9 7 7 MEAN QFF PRESSURE IN HPA 1024.4 1024.0 1015.9 1017.7 1014.4 1010.7 1008.7 1009.0 1016.9 1026.9 1025.4 1024.7 1018.2 MAX. QFF PRESSURE IN HPA 1039.2 1036.7 1031.2 1028.4 1023.2 1015.7 1014.0 1014.4 1026.2 1038.9 1040.1 1042.3 1042.3 DAY 21 12 23 22 1 22 12 8 24 29 30 1 MIN. QFF PRESSURE IN HPA 1012.2 1008.2 1005.0 1000.5 1006.2 1006.6 1002.8 1004.5 1008.1 1016.4 1013.8 1012.1 1000.5 DAY 27 11 20 20 23 3 8 15 6 4 7 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 888.9 888.4 882.9 886.4 886.4 884.8 883.6 883.7 888.1 892.3 891.1 888.8 887.1 MAX. QFE PRESSURE IN HPA 900.3 898.8 893.3 893.6 892.0 888.2 888.2 888.6 894.8 899.3 900.0 900.2 900.3 DAY 21 1 23 22 1 6 11 8 24 29 30 1 MIN. QFE PRESSURE IN HPA 880.2 880.6 873.2 877.7 880.4 881.3 878.5 880.1 882.9 886.1 883.0 880.3 873.2 DAY 7 11 14 5 23 14 3 15 6 9 7 24 MEAN QNH PRESSURE IN HPA 1023.3 1022.7 1016.5 1020.4 1020.4 1018.6 1017.3 1017.5 1022.4 1027.1 1025.7 1023.2 1021.3 MAX. QNH PRESSURE IN HPA 1036.0 1034.4 1028.2 1028.5 1026.7 1022.5 1022.5 1022.9 1029.9 1034.9 1035.7 1035.9 1036.0 DAY 21 1 23 22 1 6 11 8 24 29 30 1 MIN. QNH PRESSURE IN HPA 1013.5 1013.9 1005.7 1010.7 1013.7 1014.7 1011.6 1013.4 1016.5 1020.1 1016.6 1013.6 1005.7 DAY 7 11 14 5 23 14 3 15 6 9 7 24 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.7 1025.4 1024.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1040.4 1040.6 1042.6 ****** DAY ** ** ** ** ** ** ** ** ** 28 30 1 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1015.3 1012.6 1010.4 ****** DAY ** ** ** ** ** ** ** ** ** 3 7 24 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 887.4 887.3 882.0 885.2 885.6 883.9 882.6 882.6 886.6 891.0 889.6 887.0 885.9 MAX. QFE PRESSURE IN HPA 898.9 897.6 891.7 892.1 890.7 886.9 887.7 887.1 892.9 897.9 898.8 898.5 898.9 DAY 21 1 23 22 1 6 11 5 24 28 30 1 MIN. QFE PRESSURE IN HPA 878.3 879.8 871.1 877.9 879.3 880.5 877.0 878.8 880.8 884.7 880.6 876.9 871.1 DAY 27 9 14 20 23 13 3 15 6 4 7 24 MEAN QNH PRESSURE IN HPA 1021.6 1021.4 1015.6 1019.2 1019.5 1017.6 1016.2 1016.2 1020.7 1025.6 1024.1 1021.2 1019.9 MAX. QNH PRESSURE IN HPA 1034.5 1033.0 1026.4 1026.8 1025.3 1021.0 1021.9 1021.2 1027.7 1033.3 1034.4 1034.0 1034.5 DAY 21 1 23 22 1 6 11 5 24 28 30 1 MIN. QNH PRESSURE IN HPA 1011.4 1013.1 1003.3 1010.9 1012.5 1013.8 1009.9 1011.9 1014.2 1018.5 1013.9 1009.8 1003.3 DAY 27 9 14 20 23 13 3 15 6 4 7 24 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.0 1023.1 1021.9 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1039.1 1039.0 1039.2 ****** DAY ** ** ** ** ** ** ** ** ** 28 30 1 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1012.8 1008.5 1005.4 ****** DAY ** ** ** ** ** ** ** ** ** 3 7 24 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 887.2 886.4 881.2 884.2 884.5 882.9 881.5 881.6 885.4 890.3 889.1 886.7 885.1 MAX. QFE PRESSURE IN HPA 898.5 896.7 890.3 891.3 888.7 886.2 886.6 888.3 891.1 897.6 898.6 897.3 898.6 DAY 21 1 23 22 1 21 11 5 20 28 30 1 MIN. QFE PRESSURE IN HPA 879.9 878.0 869.6 876.3 878.8 879.8 875.2 878.0 879.6 882.3 879.5 878.8 869.6 DAY 27 10 14 19 23 13 3 15 6 4 7 24 MEAN QNH PRESSURE IN HPA 1021.4 1020.5 1014.7 1018.0 1018.4 1016.5 1015.0 1015.0 1019.3 1024.8 1023.5 1020.8 1019.0 MAX. QNH PRESSURE IN HPA 1034.0 1032.0 1024.8 1025.9 1023.0 1020.2 1020.7 1022.6 1025.7 1033.0 1034.1 1032.7 1034.1 DAY 21 1 23 22 1 21 11 5 20 28 30 1 MIN. QNH PRESSURE IN HPA 1013.2 1011.0 1001.6 1009.1 1011.9 1013.1 1007.9 1011.0 1012.8 1015.9 1012.7 1011.9 1001.6 DAY 27 10 14 19 23 13 3 15 6 4 7 24 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.2 1022.6 1021.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1038.5 1038.8 1038.0 ****** DAY ** ** ** ** ** ** ** ** ** 28 30 1 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1011.4 1007.5 1009.7 ****** DAY ** ** ** ** ** ** ** ** ** 3 7 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 888.3 887.0 882.0 885.0 884.9 883.2 882.0 881.9 885.8 891.1 890.0 887.7 885.7 MAX. QFE PRESSURE IN HPA 899.5 897.0 891.6 891.2 888.3 886.6 886.4 887.6 891.4 898.8 899.8 898.2 899.8 DAY 21 1 22 22 19 22 11 5 20 28 30 1 MIN. QFE PRESSURE IN HPA 881.0 877.5 869.9 875.7 879.5 880.3 876.1 877.9 880.4 883.2 879.8 879.3 869.9 DAY 2 10 14 19 23 13 3 18 22 4 7 13 MEAN QNH PRESSURE IN HPA 1022.6 1021.2 1015.5 1018.9 1018.8 1016.9 1015.5 1015.4 1019.8 1025.8 1024.5 1021.9 1019.7 MAX. QNH PRESSURE IN HPA 1035.1 1032.3 1026.3 1025.8 1022.6 1020.7 1020.5 1021.8 1026.1 1034.4 1035.5 1033.7 1035.5 DAY 21 1 22 22 19 22 11 5 20 28 30 1 MIN. QNH PRESSURE IN HPA 1014.4 1010.5 1002.0 1008.5 1012.7 1013.6 1008.9 1010.9 1013.7 1016.9 1013.1 1012.5 1002.0 DAY 2 10 14 19 23 13 3 18 22 4 7 13 MEAN QFF PRESSURE IN HPA 1024.8 1023.7 1015.7 1016.2 1012.8 1008.9 1006.8 1007.2 1014.7 1026.3 1025.2 1024.3 1017.2 MAX. QFF PRESSURE IN HPA 1041.1 1035.2 1030.1 1028.3 1019.7 1014.4 1013.2 1012.8 1023.6 1040.0 1041.6 1040.3 1041.6 DAY 21 1 22 6 6 22 11 5 24 28 30 1 MIN. QFF PRESSURE IN HPA 1012.7 1010.2 999.9 1002.1 1005.0 1004.9 999.8 1001.7 1005.2 1013.1 1009.4 1013.5 999.8 DAY 27 10 14 19 23 19 8 15 6 3 7 13 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 892.0 890.4 887.7 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 899.3 899.8 899.1 ****** DAY ** ** ** ** ** ** ** ** ** 28 30 1 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 884.3 879.6 879.4 ****** DAY ** ** ** ** ** ** ** ** ** 4 7 13 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.8 1025.0 1022.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1034.9 1035.5 1034.7 ****** DAY ** ** ** ** ** ** ** ** ** 28 30 1 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1018.1 1012.8 1012.6 ****** DAY ** ** ** ** ** ** ** ** ** 4 7 13 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.5 1024.9 1023.5 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1040.4 1041.5 1041.1 ****** DAY ** ** ** ** ** ** ** ** ** 28 30 1 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1013.1 1007.9 1011.9 ****** DAY ** ** ** ** ** ** ** ** ** 4 7 13 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 891.7 890.2 887.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 899.1 899.1 899.0 ****** DAY ** ** ** ** ** ** ** ** ** 28 30 1 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 885.6 879.7 879.4 ****** DAY ** ** ** ** ** ** ** ** ** 4 7 13 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.4 1024.7 1021.6 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1034.7 1034.7 1034.6 ****** DAY ** ** ** ** ** ** ** ** ** 28 30 1 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1019.6 1012.9 1012.6 ****** DAY ** ** ** ** ** ** ** ** ** 4 7 13 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.0 1023.8 1022.3 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1039.8 1039.9 1040.4 ****** DAY ** ** ** ** ** ** ** ** ** 28 30 1 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** 1014.1 1008.0 1011.0 ****** DAY ** ** ** ** ** ** ** ** ** 3 7 13 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.4 0.7 8.0 13.2 17.5 24.7 27.9 25.3 18.7 12.5 10.7 7.1 13.9 MINIMUN AIR TEMPERATURE (C) -3.3 -3.8 2.7 7.7 11.0 15.6 17.6 14.4 10.2 4.9 3.6 0.3 6.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 1 1 0 0 0 0 2 DAYS WITH MINIMUM TEMP. <=-4 13 11 0 0 0 0 0 0 0 0 0 4 28 DAYS WITH FREEZING MIN.<= 0 26 25 7 2 0 0 0 0 0 0 5 15 80 TEMPERATURE RECORDS LOWEST(C) -11.2 -18.8 -2.6 -1.2 6.2 9.2 10.2 9.4 1.0 1.0 -3.2 -7.8 -18.8 DAY 21 8 26 3 6 1 24 25 26 3 26 25 MAXIMUM AIR TEMPERATURE (C) 5.3 6.8 14.1 19.5 23.9 31.9 32.7 30.8 27.1 21.3 17.9 12.1 20.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 21 28 21 7 0 0 0 79 DAYS WITH MAXIMUM TEMP. <= 0 3 5 0 0 0 0 0 0 0 0 0 0 8 TEMPERATURE RECORDS HIGHEST(C) 10.2 18.6 25.6 27.4 33.0 38.4 36.2 35.2 34.6 28.2 25.4 19.2 38.4 DAY 27 2 21 20 29 17 4 13 10 27 9 11 DIF. BETWEEN (MAX.-MIN.) (C) 8.6 10.6 11.4 11.8 12.9 16.3 15.1 16.4 16.9 16.4 14.3 11.8 13.6 MEAN DAILY TEMP. (MDT) (C) 1.0 1.5 8.4 13.6 17.5 23.7 25.2 22.6 18.7 13.1 10.8 6.2 13.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 7.1 87.5 130.2 59.7 18.0 0.0 0.0 0.0 302.6 HEATING DEG. DAYS(BASE 18 0C) 527.5 479.8 296.8 138.7 54.3 0.0 0.0 0.8 45.2 152.2 216.7 365.8 2277.7 DEWPOINT (MEAN C) -3.2 -3.0 2.5 7.2 8.6 8.5 10.0 9.5 5.7 1.1 0.2 -1.2 3.8 MIXING RATIO (G/KG) 3.52 3.66 5.33 7.60 8.08 8.24 9.22 8.60 6.88 4.80 4.59 4.07 6.22 VAPOUR PRESSURE (HPA) 4.99 5.18 7.48 10.66 11.34 11.50 12.84 12.02 9.68 6.81 6.51 5.75 8.73 SATURATION DEF. (HPA) 1.48 1.89 3.79 5.65 9.69 21.10 25.81 21.23 13.65 8.63 7.28 4.92 10.43 RELATIVE HUMIDITY (MEAN %) 79 78 71 70 60 38 36 39 47 50 54 59 57 RELATIVE HUMIDITY (MAX. %) 91 93 91 91 83 60 57 57 74 73 76 78 77 RELATIVE HUMIDITY (MIN. %) 60 57 48 48 41 23 24 28 26 29 33 44 38 RELATIVE HUMIDITY (MEAN% 03UTC) 84 87 87 85 73 50 56 56 67 63 68 76 71 RELATIVE HUMIDITY (MEAN% 09UTC) 66 66 56 54 45 27 29 31 30 33 38 51 44 RELATIVE HUMIDITY (MEAN% 15UTC) 80 79 66 63 52 32 32 35 34 46 51 59 52 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 18.4 38.2 79.3 84.4 4.3 0.0 8.4 0.1 4.0 0.0 4.0 14.9 256.0 DAYS WITH PRECIPITATION >=10 1 1 3 3 0 0 0 0 0 0 0 0 8 DAYS WITH PRECIPITATION >= 5 1 2 6 4 0 0 1 0 0 0 0 0 14 DAYS WITH PRECIPITATION >= 1 4 7 10 13 1 0 1 0 1 0 1 6 44 DAYS WITH PRECIPITATION 12 10 15 18 7 0 4 4 4 3 1 10 88 GREATEST DAILY PRECIPITATION 10.2 18.3 17.3 20.4 1.8 0.0 8.0 0.1 3.2 0.0 4.0 4.0 20.4 DAY 19 25 5 16 3 ** 10 21 1 ** 15 14 DAY WITH THUNDER STORM 1 1 0 6 3 1 1 1 5 0 0 0 19 DAYS WITH SNOW OR SLEET 9 9 2 0 0 0 0 0 0 0 1 2 23 DAYS WITH DUST 0 0 2 3 5 8 5 5 9 2 4 0 43 WIND DIRECTION (PREVAILING) 270 315 315 315 135 135 135 135 135 315 315 315 315 PREVAILING WIND SPEED(KNOTS) 11.3 17.1 18.3 18.7 9.5 10.9 11.5 11.1 8.7 11.8 11.2 11.4 15.3 PREVAILING WIND PERCENT 20.2 18.5 22.0 16.7 24.6 16.6 26.5 28.9 19.2 10.9 27.0 27.7 15.4 CALMS PERCENT OF WIND 50.8 58.6 44.5 54.2 44.0 46.7 31.6 38.0 54.6 66.1 45.9 41.9 49.2 NO. OF WIND OBSERVATION 248 232 218 240 248 229 155 166 240 248 196 155 2575 VECTOR WIND DIRECTION (MEAN) 296 296 294 303 114 95 110 119 143 297 296 301 298 VECTOR WIND MAGNITUDE(KNOTS) 5.5 4.9 5.2 1.9 1.6 0.9 4.0 2.8 1.0 1.1 3.3 3.9 1.3 WIND STEADINESES (MEAN %) 82.1 84.5 67.5 32.8 27.1 15.8 57.1 44.4 23.3 35.5 64.7 73.6 22.8 WIND SPEED (MEAN KNOTS) 6.7 5.8 7.7 5.8 5.9 5.7 7.0 6.3 4.3 3.1 5.1 5.3 5.7 FASTEST WIND DIRECTION 300 290 300 300 310 280 310 300 300 290 300 300 300 FASTEST WIND SPEED (KNOTS) 51 47 51 58 37 37 23 27 35 43 29 29 58 DAY 20 26 5 1 26 27 8 13 21 22 21 23 DAYS WITH SKY CLEAR (0-2)/8 6 9 7 3 19 23 23 24 25 20 12 11 182 DAYS WITH P.CLOUDY (3-6)/8 15 8 13 16 7 7 7 7 5 8 16 16 125 DAYS WITH CLOUDY (7-8)/8 10 12 11 11 5 0 1 0 0 3 2 4 59 DAYS WITH VISIBILITY =< 2 KM 10 10 6 3 2 0 0 0 1 0 4 2 38 DURATION OF SUNSHINE HOURS 145.9 155.2 197.5 173.2 283.8 349.3 349.8 331.6 298.9 251.3 195.9 179.1 2911.5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 886.6 886.4 882.2 885.7 884.8 881.0 880.4 881.8 886.3 889.4 888.4 885.9 884.9 MAX. QFE PRESSURE IN HPA 899.1 896.8 893.0 897.4 894.1 888.2 884.5 888.0 893.1 897.5 899.1 896.3 899.1 DAY-HOUR 3- 6 7-18 17- 6 9- 6 5- 6 1- 0 30- 3 21- 3 14- 6 16-18 6- 6 5- 6 MIN. QFE PRESSURE IN HPA 875.5 878.5 871.7 877.9 876.2 871.0 876.5 876.2 879.8 880.7 878.3 871.1 871.0 DAY-HOUR 29-12 17-12 5- 0 30-12 29-12 23-12 1-12 29-15 5-12 31- 0 20- 9 27-15 MEAN QNH PRESSURE IN HPA 1020.7 1020.4 1015.8 1019.6 1018.6 1014.3 1013.7 1015.3 1020.3 1023.8 1022.7 1019.9 1018.8 MAX. QNH PRESSURE IN HPA 1034.7 1032.1 1027.9 1032.8 1029.1 1022.5 1018.3 1022.2 1028.0 1032.9 1034.7 1031.5 1034.7 DAY-HOUR 3- 6 7-18 17- 6 9- 6 5- 6 1- 0 30- 3 21- 3 14- 6 16-18 6- 6 5- 6 MIN. QNH PRESSURE IN HPA 1008.2 1011.6 1004.0 1010.9 1009.0 1003.2 1009.4 1009.0 1013.1 1014.1 1011.4 1003.3 1003.2 DAY-HOUR 29-12 17-12 5- 0 30-12 29-12 23-12 1-12 29-15 5-12 31- 0 20- 9 27-15 MEAN QFF PRESSURE IN HPA 1024.4 1024.0 1015.1 1016.5 1013.4 1005.7 ****** ****** 1014.6 1021.3 1021.6 ****** ****** MAX. QFF PRESSURE IN HPA 1042.1 1043.6 1027.7 1034.8 1027.8 1018.1 ****** ****** 1026.4 1032.1 1033.9 ****** ****** DAY-HOUR 3- 6 7-18 17- 6 9- 6 5- 6 1- 0 **-** **-** 25- 3 17- 3 15-15 **-** MIN. QFF PRESSURE IN HPA 1009.2 1010.4 1001.8 1004.9 999.5 992.4 ****** ****** 1004.0 1009.5 1009.8 ****** ****** DAY-HOUR 29- 9 2-12 21-12 15-12 29-12 23-12 **-** **-** 5-12 21- 0 14-12 **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 886.3 886.2 882.1 885.5 884.4 881.2 ****** ****** 886.3 889.3 889.3 ****** ****** MAX. QFE PRESSURE IN HPA 895.3 895.6 890.8 895.3 892.6 888.2 ****** ****** 892.4 896.5 897.9 ****** ****** DAY 3 7 17 9 5 1 ** ** 25 17 6 ** MIN. QFE PRESSURE IN HPA 878.5 879.6 871.7 878.6 876.6 873.4 ****** ****** 882.2 880.7 883.3 ****** ****** DAY 29 1 5 1 29 24 ** ** 5 31 14 ** MEAN QNH PRESSURE IN HPA 1020.4 1020.2 1015.6 1019.4 1018.2 1014.6 ****** ****** 1020.4 1023.7 1023.7 ****** ****** MAX. QNH PRESSURE IN HPA 1030.4 1030.8 1025.4 1030.4 1027.4 1022.5 ****** ****** 1027.2 1031.8 1033.3 ****** ****** DAY 3 7 17 9 5 1 ** ** 25 17 6 ** MIN. QNH PRESSURE IN HPA 1011.6 1012.8 1004.0 1011.7 1009.5 1005.9 ****** ****** 1015.7 1014.1 1017.0 ****** ****** DAY 29 1 5 1 29 24 ** ** 5 31 14 ** MEAN QFF PRESSURE IN HPA 1023.8 1023.4 1014.9 1016.2 1013.0 1006.2 ****** ****** 1014.5 1020.8 1020.9 ****** ****** MAX. QFF PRESSURE IN HPA 1036.7 1040.6 1025.2 1033.0 1026.0 1018.1 ****** ****** 1024.2 1030.6 1031.8 ****** ****** DAY 3 7 18 9 5 1 ** ** 25 17 16 ** MIN. QFF PRESSURE IN HPA 1012.7 1012.1 1002.3 1006.4 999.8 995.2 ****** ****** 1006.6 1009.5 1013.6 ****** ****** DAY 29 3 5 24 29 24 ** ** 6 21 14 ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 886.5 886.3 882.8 886.0 885.2 881.9 881.4 883.0 886.9 889.8 888.7 886.1 885.4 MAX. QFE PRESSURE IN HPA 897.4 896.2 891.9 896.3 893.1 888.0 884.5 888.0 893.0 896.9 897.6 894.3 897.6 DAY 3 7 17 9 5 1 30 21 25 17 6 5 MIN. QFE PRESSURE IN HPA 877.3 879.4 872.2 879.1 877.3 873.8 877.4 878.4 882.5 882.1 880.6 873.0 872.2 DAY 29 1 5 1 29 24 1 30 5 31 20 26 MEAN QNH PRESSURE IN HPA 1020.6 1020.4 1016.4 1020.0 1019.1 1015.4 1014.9 1016.6 1021.0 1024.3 1023.1 1020.1 1019.3 MAX. QNH PRESSURE IN HPA 1032.8 1031.4 1026.6 1031.5 1028.0 1022.2 1018.3 1022.2 1027.9 1032.2 1033.0 1029.3 1033.0 DAY 3 7 17 9 5 1 30 21 25 17 6 5 MIN. QNH PRESSURE IN HPA 1010.3 1012.6 1004.5 1012.3 1010.3 1006.3 1010.4 1011.5 1016.1 1015.6 1013.9 1005.4 1004.5 DAY 29 1 5 1 29 24 1 30 5 31 20 26 MEAN QFF PRESSURE IN HPA 1024.9 1024.5 1016.7 1017.3 1014.1 1007.0 1005.9 1008.8 1015.9 1022.7 1022.7 1021.8 1016.9 MAX. QFF PRESSURE IN HPA 1040.3 1041.9 1026.8 1034.1 1027.0 1017.3 1010.8 1013.3 1026.4 1032.1 1032.5 1032.6 1041.9 DAY 3 8 18 9 5 1 24 22 25 17 16 30 MIN. QFF PRESSURE IN HPA 1012.9 1014.7 1002.7 1009.1 1001.5 996.3 1001.0 1004.1 1008.6 1013.3 1011.5 1007.7 996.3 DAY 29 1 5 1 29 24 16 30 5 21 20 26 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 887.5 887.3 883.5 886.6 885.5 882.0 881.3 883.0 887.2 890.3 889.4 887.0 885.9 MAX. QFE PRESSURE IN HPA 899.1 896.7 893.0 897.4 894.1 887.9 884.2 888.0 893.1 896.5 899.1 896.3 899.1 DAY 3 7 17 9 5 1 23 21 14 17 6 5 MIN. QFE PRESSURE IN HPA 877.7 880.7 874.2 880.6 877.6 874.2 877.9 878.7 882.3 883.1 879.9 873.5 873.5 DAY 29 2 5 1 29 24 1 29 5 31 20 26 MEAN QNH PRESSURE IN HPA 1021.7 1021.5 1017.2 1020.7 1019.5 1015.5 1014.7 1016.7 1021.4 1024.9 1023.8 1021.1 1019.9 MAX. QNH PRESSURE IN HPA 1034.7 1032.0 1027.9 1032.8 1029.1 1022.1 1018.0 1022.2 1028.0 1031.8 1034.7 1031.5 1034.7 DAY 3 7 17 9 5 1 23 21 14 17 6 5 MIN. QNH PRESSURE IN HPA 1010.7 1014.1 1006.8 1013.9 1010.6 1006.8 1010.9 1011.8 1015.9 1016.8 1013.2 1006.0 1006.0 DAY 29 2 5 1 29 24 1 29 5 31 20 26 MEAN QFF PRESSURE IN HPA 1025.7 1025.3 1016.2 1017.5 1014.2 1006.5 ****** ****** 1015.5 1022.3 1023.5 ****** ****** MAX. QFF PRESSURE IN HPA 1042.1 1042.4 1027.7 1034.8 1027.8 1016.5 ****** ****** 1025.3 1030.2 1032.5 ****** ****** DAY 3 8 17 9 5 1 ** ** 25 17 6 ** MIN. QFF PRESSURE IN HPA 1012.3 1013.9 1004.9 1008.8 1001.7 997.1 ****** ****** 1007.6 1013.8 1013.9 ****** ****** DAY 29 2 5 15 29 24 ** ** 5 31 14 ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 886.3 886.4 882.3 885.7 884.8 881.0 880.4 882.1 886.0 888.9 887.6 885.6 884.8 MAX. QFE PRESSURE IN HPA 897.5 896.6 891.7 896.7 893.1 887.4 883.2 886.9 891.7 895.7 896.7 895.0 897.5 DAY 3 7 17 9 5 1 23 21 14 16 6 5 MIN. QFE PRESSURE IN HPA 875.8 879.7 873.3 879.1 877.4 873.0 877.3 877.9 881.3 882.7 878.3 874.0 873.0 DAY 29 2 5 30 29 23 1 29 5 31 20 26 MEAN QNH PRESSURE IN HPA 1020.3 1020.5 1015.9 1019.7 1018.7 1014.4 1013.7 1015.6 1020.0 1023.3 1021.8 1019.5 1018.6 MAX. QNH PRESSURE IN HPA 1032.9 1031.9 1026.4 1032.0 1028.0 1021.6 1016.9 1021.0 1026.4 1030.9 1032.0 1030.1 1032.9 DAY 3 7 17 9 5 1 23 21 14 16 6 5 MIN. QNH PRESSURE IN HPA 1008.6 1012.9 1005.8 1012.3 1010.4 1005.4 1010.3 1010.9 1014.7 1016.3 1011.4 1006.5 1005.4 DAY 29 2 5 30 29 23 1 29 5 31 20 26 MEAN QFF PRESSURE IN HPA 1023.7 1023.7 1014.2 1016.2 1013.2 1005.5 ****** ****** 1013.9 1020.3 1020.4 ****** ****** MAX. QFF PRESSURE IN HPA 1039.5 1041.1 1026.0 1034.0 1026.2 1016.1 ****** ****** 1023.2 1029.3 1029.6 ****** ****** DAY 3 7 17 9 5 1 ** ** 25 16 6 ** MIN. QFF PRESSURE IN HPA 1009.2 1011.3 1003.6 1006.5 1001.0 994.5 ****** ****** 1006.4 1011.8 1009.9 ****** ****** DAY 29 2 5 15 29 23 ** ** 5 21 14 ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 885.8 885.6 881.2 884.5 883.8 879.8 879.4 880.9 884.8 888.2 886.9 885.0 883.8 MAX. QFE PRESSURE IN HPA 896.2 895.9 890.4 895.2 892.3 885.5 882.1 885.2 890.6 896.1 895.8 893.6 896.2 DAY 3 7 17 9 5 1 23 21 25 16 6 5 MIN. QFE PRESSURE IN HPA 875.5 878.5 873.3 877.9 876.2 871.0 876.5 876.5 879.8 882.1 879.3 872.6 871.0 DAY 29 17 5 30 29 23 1 29 5 21 20 27 MEAN QNH PRESSURE IN HPA 1019.8 1019.6 1014.6 1018.4 1017.5 1013.0 1012.6 1014.2 1018.7 1022.5 1021.0 1018.9 1017.6 MAX. QNH PRESSURE IN HPA 1031.4 1031.1 1024.9 1030.3 1027.1 1019.4 1015.6 1019.1 1025.2 1031.3 1031.0 1028.5 1031.4 DAY 3 7 17 9 5 1 23 21 25 16 6 5 MIN. QNH PRESSURE IN HPA 1008.2 1011.6 1005.8 1010.9 1009.0 1003.2 1009.4 1009.4 1013.1 1015.6 1012.5 1005.0 1003.2 DAY 29 17 5 30 29 23 1 29 5 21 20 27 MEAN QFF PRESSURE IN HPA 1023.1 1022.7 1012.8 1015.1 1012.3 1004.4 ****** ****** 1012.8 1019.5 1019.4 ****** ****** MAX. QFF PRESSURE IN HPA 1037.2 1040.8 1024.2 1032.0 1025.4 1014.0 ****** ****** 1022.8 1030.0 1030.7 ****** ****** DAY 3 7 17 9 5 1 ** ** 25 16 15 ** MIN. QFF PRESSURE IN HPA 1009.6 1010.4 1001.8 1004.9 999.5 992.4 ****** ****** 1004.0 1009.5 1009.8 ****** ****** DAY 29 2 21 15 29 23 ** ** 5 21 14 ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 886.7 886.3 881.8 885.0 884.1 879.9 879.5 881.0 885.4 889.0 887.9 885.8 884.4 MAX. QFE PRESSURE IN HPA 895.9 896.4 891.1 895.2 893.0 885.5 882.5 886.3 890.8 897.0 896.8 894.6 897.0 DAY 3 7 17 9 5 1 22 21 24 16 6 5 MIN. QFE PRESSURE IN HPA 878.3 879.5 874.4 878.4 877.5 871.0 876.5 876.2 879.8 881.5 880.0 871.1 871.0 DAY 29 17 5 30 28 23 16 29 5 30 28 27 MEAN QNH PRESSURE IN HPA 1020.8 1020.4 1015.2 1018.9 1017.8 1013.2 1012.7 1014.4 1019.3 1023.4 1022.1 1019.7 1018.2 MAX. QNH PRESSURE IN HPA 1031.1 1031.7 1025.7 1030.3 1027.9 1019.4 1016.1 1020.3 1025.4 1032.3 1032.1 1029.6 1032.3 DAY 3 7 17 9 5 1 22 21 24 16 6 5 MIN. QNH PRESSURE IN HPA 1011.4 1012.7 1007.0 1011.5 1010.5 1003.2 1009.4 1009.0 1013.1 1015.0 1013.3 1003.3 1003.2 DAY 29 17 5 30 28 23 16 29 5 30 28 27 MEAN QFF PRESSURE IN HPA 1025.1 1024.4 1015.4 1016.1 1012.8 1004.8 1003.8 1006.6 1014.3 1021.7 1021.8 1021.4 1015.7 MAX. QFF PRESSURE IN HPA 1039.2 1042.9 1026.7 1032.0 1026.6 1013.2 1009.0 1012.4 1024.1 1031.7 1033.9 1033.6 1042.9 DAY 3 7 17 8 5 1 27 21 25 16 15 24 MIN. QFF PRESSURE IN HPA 1014.7 1013.6 1004.1 1006.0 1001.9 992.8 999.1 1002.0 1004.8 1012.9 1011.7 1002.7 992.8 DAY 29 29 21 15 29 23 16 29 5 21 28 27 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 887.0 886.7 882.1 886.3 885.3 881.2 ****** ****** 886.8 889.9 889.7 ****** ****** MAX. QFE PRESSURE IN HPA 895.3 896.8 891.8 896.5 893.6 886.9 ****** ****** 892.4 897.5 897.5 ****** ****** DAY 11 7 17 8 4 1 ** ** 24 16 6 ** MIN. QFE PRESSURE IN HPA 879.2 880.0 876.4 878.8 877.2 872.7 ****** ****** 881.7 881.5 883.9 ****** ****** DAY 29 2 9 30 28 23 ** ** 5 30 14 ** MEAN QNH PRESSURE IN HPA 1021.1 1020.8 1015.7 1020.3 1019.3 1014.6 ****** ****** 1020.9 1024.4 1024.1 ****** ****** MAX. QNH PRESSURE IN HPA 1030.4 1032.1 1026.5 1031.8 1028.5 1021.0 ****** ****** 1027.2 1032.9 1032.9 ****** ****** DAY 11 7 17 8 4 1 ** ** 24 16 6 ** MIN. QNH PRESSURE IN HPA 1012.4 1013.3 1009.2 1011.9 1010.1 1005.1 ****** ****** 1015.2 1015.0 1017.7 ****** ****** DAY 29 2 9 30 28 23 ** ** 5 30 14 ** MEAN QFF PRESSURE IN HPA 1025.0 1024.5 1015.4 1017.1 1013.9 1005.7 ****** ****** 1015.0 1021.8 1022.3 ****** ****** MAX. QFF PRESSURE IN HPA 1037.5 1043.6 1027.0 1032.5 1027.3 1014.7 ****** ****** 1024.8 1032.0 1033.2 ****** ****** DAY 3 7 17 8 4 1 ** ** 25 16 15 ** MIN. QFF PRESSURE IN HPA 1014.7 1012.3 1007.6 1006.9 1001.7 994.3 ****** ****** 1006.3 1012.2 1016.1 ****** ****** DAY 29 2 3 15 28 23 ** ** 5 20 8 ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 886.6 886.5 882.2 886.0 885.1 881.0 ****** ****** 886.7 889.7 889.5 ****** ****** MAX. QFE PRESSURE IN HPA 895.6 896.5 891.7 895.8 892.8 886.6 ****** ****** 892.5 897.2 897.9 ****** ****** DAY 11 7 17 8 4 1 ** ** 24 16 5 ** MIN. QFE PRESSURE IN HPA 879.8 880.2 874.0 878.8 876.9 873.0 ****** ****** 882.3 881.2 884.8 ****** ****** DAY 28 29 4 30 28 23 ** ** 4 30 10 ** MEAN QNH PRESSURE IN HPA 1020.7 1020.5 1015.7 1020.0 1019.0 1014.3 ****** ****** 1020.8 1024.1 1023.9 ****** ****** MAX. QNH PRESSURE IN HPA 1030.8 1031.8 1026.4 1031.0 1027.6 1020.7 ****** ****** 1027.3 1032.6 1033.3 ****** ****** DAY 11 7 17 8 4 1 ** ** 24 16 5 ** MIN. QNH PRESSURE IN HPA 1013.1 1013.5 1006.5 1011.9 1009.8 1005.4 ****** ****** 1015.9 1014.6 1018.7 ****** ****** DAY 28 29 4 30 28 23 ** ** 4 30 10 ** MEAN QFF PRESSURE IN HPA 1024.1 1023.8 1014.9 1016.6 1013.5 1005.5 ****** ****** 1014.8 1021.2 1021.2 ****** ****** MAX. QFF PRESSURE IN HPA 1036.5 1042.0 1026.9 1032.6 1026.3 1014.4 ****** ****** 1023.8 1031.3 1032.6 ****** ****** DAY 2 7 17 8 4 1 ** ** 24 16 15 ** MIN. QFF PRESSURE IN HPA 1013.9 1011.9 1005.0 1006.5 1000.4 994.5 ****** ****** 1007.2 1010.9 1015.1 ****** ****** DAY 31 2 4 15 28 23 ** ** 5 20 10 ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -1.7 -1.2 8.9 15.9 19.2 27.3 29.3 27.0 21.5 17.7 8.9 5.6 14.9 MINIMUN AIR TEMPERATURE (C) -6.2 -6.9 1.8 5.7 8.3 14.8 17.9 14.7 9.0 6.8 1.5 1.1 5.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 3 0 0 0 0 0 3 DAYS WITH MINIMUM TEMP. <=-4 21 21 0 0 0 0 0 0 0 0 3 0 45 DAYS WITH FREEZING MIN.<= 0 31 28 11 0 4 0 0 0 0 1 10 10 95 TEMPERATURE RECORDS LOWEST(C) -18.2 -15.0 -2.6 0.4 -2.6 10.2 13.8 9.8 3.6 -0.6 -6.6 -3.2 -18.2 DAY 5 26 10 1 3 9 6 1 23 25 23 25 MAXIMUM AIR TEMPERATURE (C) 1.9 2.9 13.8 21.1 24.1 31.9 33.9 32.2 27.4 23.8 14.1 9.4 19.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 6 23 31 28 10 5 0 0 103 DAYS WITH MAXIMUM TEMP. <= 0 7 8 0 0 0 0 0 0 0 0 0 0 15 TEMPERATURE RECORDS HIGHEST(C) 11.4 11.2 21.8 27.2 32.0 36.6 37.6 35.2 34.6 31.2 22.2 18.2 37.6 DAY 2 22 27 15 24 24 8 11 2 2 30 1 DIF. BETWEEN (MAX.-MIN.) (C) 8.1 9.8 12.0 15.4 15.8 17.1 16.0 17.5 18.4 17.0 12.6 8.3 14.0 MEAN DAILY TEMP. (MDT) (C) -2.2 -2.0 7.8 13.4 16.2 23.4 25.9 23.5 18.2 15.3 7.8 5.2 12.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 4.5 74.4 151.0 77.7 8.2 0.7 0.0 0.0 316.6 HEATING DEG. DAYS(BASE 18 0C) 625.1 559.6 316.9 138.2 87.1 0.0 0.0 0.0 34.4 105.2 306.3 396.1 2568.9 DEWPOINT (MEAN C) -6.3 -6.2 1.2 3.0 6.9 6.7 9.3 7.5 2.5 2.0 -0.4 1.9 2.3 MIXING RATIO (G/KG) 2.78 2.81 4.80 5.49 7.27 7.29 8.58 7.88 5.42 5.19 4.33 5.05 5.57 VAPOUR PRESSURE (HPA) 3.94 4.00 6.76 7.75 10.22 10.21 11.99 11.02 7.64 7.35 6.13 7.14 7.85 SATURATION DEF. (HPA) 1.65 1.92 5.21 11.24 13.74 26.95 29.66 25.75 19.65 14.52 5.98 2.25 13.21 RELATIVE HUMIDITY (MEAN %) 72 71 62 45 48 29 30 32 33 40 58 79 50 RELATIVE HUMIDITY (MAX. %) 82 84 86 68 67 43 45 48 51 62 82 92 68 RELATIVE HUMIDITY (MIN. %) 62 59 44 32 37 21 23 22 22 27 39 66 38 RELATIVE HUMIDITY (MEAN% 03UTC) 76 83 85 67 64 43 45 48 51 58 80 90 66 RELATIVE HUMIDITY (MEAN% 09UTC) 69 62 50 37 40 22 24 24 25 30 45 71 42 RELATIVE HUMIDITY (MEAN% 15UTC) 75 74 60 40 49 27 29 31 31 42 60 82 50 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 27.0 38.2 30.6 14.0 16.4 0.0 0.1 0.2 0.0 1.1 30.6 39.7 197.9 DAYS WITH PRECIPITATION >=10 0 1 1 1 1 0 0 0 0 0 2 2 8 DAYS WITH PRECIPITATION >= 5 2 4 1 1 1 0 0 0 0 0 2 4 15 DAYS WITH PRECIPITATION >= 1 7 6 9 1 2 0 0 0 0 1 3 6 35 DAYS WITH PRECIPITATION 12 9 12 7 7 3 1 3 0 2 6 10 72 GREATEST DAILY PRECIPITATION 7.0 10.0 11.0 13.0 12.0 0.0 0.1 0.2 0.0 1.1 15.0 12.0 15.0 DAY 4 23 30 30 15 ** 18 4 ** 10 1 16 DAY WITH THUNDER STORM 0 0 1 0 0 0 0 0 0 0 0 1 2 DAYS WITH SNOW OR SLEET 9 7 1 1 0 0 0 0 0 0 0 1 19 DAYS WITH DUST 0 0 0 2 6 10 20 2 16 11 4 0 71 WIND DIRECTION (PREVAILING) 315 315 315 135 135 135 135 135 135 135 315 315 315 PREVAILING WIND SPEED(KNOTS) 15.0 13.1 14.8 9.6 10.8 8.3 10.2 8.0 10.6 8.8 11.7 13.3 13.6 PREVAILING WIND PERCENT 31.0 37.1 13.0 24.7 23.9 30.7 16.8 19.4 30.0 15.5 18.0 29.0 16.7 CALMS PERCENT OF WIND 43.9 37.9 59.7 34.7 46.5 38.7 43.2 62.6 49.3 61.3 60.0 51.6 49.2 NO. OF WIND OBSERVATION 155 140 154 150 155 150 155 155 150 155 150 155 1824 VECTOR WIND DIRECTION (MEAN) 303 309 276 329 112 114 67 110 114 21 305 308 324 VECTOR WIND MAGNITUDE(KNOTS) 5.8 5.3 1.7 1.0 2.9 3.5 1.6 0.7 2.8 0.1 2.9 4.4 0.9 WIND STEADINESES (MEAN %) 85.3 79.1 36.2 14.1 54.7 72.9 29.6 20.6 49.1 2.7 72.5 83.0 17.3 WIND SPEED (MEAN KNOTS) 6.8 6.7 4.7 7.1 5.3 4.8 5.4 3.4 5.7 3.7 4.0 5.3 5.2 FASTEST WIND DIRECTION 320 300 290 310 230 120 300 310 290 310 290 320 290 FASTEST WIND SPEED (KNOTS) 29 33 31 62 31 17 29 37 68 27 29 43 68 DAY 21 5 22 29 7 18 20 19 19 26 20 5 DAYS WITH SKY CLEAR (0-2)/8 13 12 8 13 18 22 24 29 24 23 16 7 209 DAYS WITH P.CLOUDY (3-6)/8 10 8 13 15 9 8 7 2 6 6 9 15 108 DAYS WITH CLOUDY (7-8)/8 8 8 10 2 4 0 0 0 0 2 5 9 48 DAYS WITH VISIBILITY =< 2 KM 5 5 1 1 0 0 0 0 1 0 2 5 20 DURATION OF SUNSHINE HOURS 172.8 177.5 182.8 273.8 307.5 346.0 360.3 352.3 287.0 251.1 205.5 145.9 3062.5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 886.5 888.6 883.6 886.6 885.9 882.3 881.9 882.6 884.7 888.7 889.0 886.4 885.6 MAX. QFE PRESSURE IN HPA 897.7 896.8 891.1 892.2 891.5 886.9 886.4 888.4 895.3 897.4 897.2 891.6 897.7 DAY-HOUR 22- 6 8- 6 8- 6 11- 6 1- 6 2- 6 10- 6 20- 3 23- 6 24- 6 8- 6 18-15 MIN. QFE PRESSURE IN HPA 875.8 876.7 870.0 879.0 879.3 877.1 877.3 875.5 877.6 879.2 882.2 876.5 870.0 DAY-HOUR 17- 9 23- 6 30- 9 29-12 7-12 10-15 6-15 1-15 12-12 2-12 20- 9 5- 9 MEAN QNH PRESSURE IN HPA 1020.6 1022.9 1017.4 1020.7 1019.9 1015.9 1015.4 1016.2 1018.6 1023.0 1023.4 1020.5 1019.5 MAX. QNH PRESSURE IN HPA 1033.1 1032.1 1025.7 1027.0 1026.2 1021.0 1020.5 1022.7 1030.4 1032.8 1032.6 1026.3 1033.1 DAY-HOUR 22- 6 8- 6 8- 6 11- 6 1- 6 2- 6 10- 6 20- 3 23- 6 24- 6 8- 6 18-15 MIN. QNH PRESSURE IN HPA 1008.6 1009.6 1002.1 1012.2 1012.5 1010.0 1010.3 1008.2 1010.6 1012.4 1015.7 1009.4 1002.1 DAY-HOUR 17- 9 23- 6 30- 9 29-12 7-12 10-15 6-15 1-15 12-12 2-12 20- 9 5- 9 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 886.3 888.5 884.1 887.3 886.6 883.3 882.7 883.5 885.6 889.4 889.5 886.6 886.1 MAX. QFE PRESSURE IN HPA 897.0 895.6 890.0 892.0 890.8 886.7 886.0 888.4 894.9 896.4 896.6 890.5 897.0 DAY 22 4 8 11 21 2 10 20 23 24 8 29 MIN. QFE PRESSURE IN HPA 877.6 876.8 873.5 880.8 879.8 879.3 879.9 876.9 879.2 881.1 883.0 878.4 873.5 DAY 17 23 30 29 7 10 5 2 13 2 20 5 MEAN QNH PRESSURE IN HPA 1020.4 1022.8 1017.8 1021.5 1020.7 1016.9 1016.3 1017.2 1019.6 1023.8 1023.9 1020.7 1020.1 MAX. QNH PRESSURE IN HPA 1032.3 1030.8 1024.5 1026.7 1025.4 1020.8 1020.0 1022.7 1030.0 1031.7 1031.9 1025.1 1032.3 DAY 22 4 8 11 21 2 10 20 23 24 8 29 MIN. QNH PRESSURE IN HPA 1010.6 1009.7 1006.0 1014.2 1013.1 1012.5 1013.2 1009.8 1012.4 1014.5 1016.6 1011.5 1006.0 DAY 17 23 30 29 7 10 5 2 13 2 20 5 MEAN QFF PRESSURE IN HPA 1025.9 1029.0 1018.3 1018.7 1015.9 1008.5 1006.9 1009.2 1014.5 1020.9 1025.0 1022.4 1017.9 MAX. QFF PRESSURE IN HPA 1037.4 1040.2 1026.7 1025.0 1025.9 1013.6 1009.9 1016.5 1028.6 1032.2 1033.6 1028.4 1040.2 DAY 27 4 8 9 1 2 23 20 23 24 8 29 MIN. QFF PRESSURE IN HPA 1014.9 1011.4 1004.0 1007.8 1005.9 1004.4 1003.4 1001.8 1005.4 1009.7 1015.9 1011.8 1001.8 DAY 3 23 29 29 7 24 7 2 13 2 16 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 887.6 889.3 884.7 887.7 886.8 883.3 882.8 883.7 886.0 889.9 890.2 887.5 886.6 MAX. QFE PRESSURE IN HPA 897.7 896.8 891.1 892.2 891.5 886.9 886.4 888.2 895.3 897.4 897.2 891.4 897.7 DAY 22 8 8 11 1 2 10 19 23 24 8 29 MIN. QFE PRESSURE IN HPA 877.3 876.7 872.7 881.5 880.5 879.4 880.2 877.2 879.9 880.8 883.3 878.8 872.7 DAY 17 23 30 29 7 10 5 2 13 2 20 5 MEAN QNH PRESSURE IN HPA 1021.8 1023.8 1018.5 1021.9 1020.9 1017.0 1016.5 1017.4 1020.0 1024.4 1024.7 1021.7 1020.7 MAX. QNH PRESSURE IN HPA 1033.1 1032.1 1025.7 1027.0 1026.2 1021.0 1020.5 1022.5 1030.4 1032.8 1032.6 1026.1 1033.1 DAY 22 8 8 11 1 2 10 19 23 24 8 29 MIN. QNH PRESSURE IN HPA 1010.3 1009.6 1005.1 1015.0 1013.8 1012.6 1013.5 1010.1 1013.2 1014.2 1017.0 1011.9 1005.1 DAY 17 23 30 29 7 10 5 2 13 2 20 5 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 886.3 888.5 883.6 886.7 886.0 882.5 882.0 882.7 884.7 888.4 888.6 886.0 885.5 MAX. QFE PRESSURE IN HPA 896.1 896.1 890.1 891.3 890.6 886.6 885.8 886.7 894.2 896.0 895.0 889.7 896.1 DAY 22 8 8 11 21 2 10 19 23 24 8 3 MIN. QFE PRESSURE IN HPA 875.8 876.7 870.0 879.4 880.0 878.8 879.1 876.6 879.0 879.8 882.2 876.5 870.0 DAY 17 23 30 29 7 10 17 2 13 2 20 5 MEAN QNH PRESSURE IN HPA 1020.4 1022.8 1017.4 1020.8 1020.0 1016.1 1015.5 1016.3 1018.5 1022.7 1022.9 1020.0 1019.4 MAX. QNH PRESSURE IN HPA 1031.3 1031.3 1024.6 1025.9 1025.2 1020.7 1019.8 1020.8 1029.2 1031.2 1030.1 1024.2 1031.3 DAY 22 8 8 11 21 2 10 19 23 24 8 3 MIN. QNH PRESSURE IN HPA 1008.6 1009.6 1002.1 1012.6 1013.3 1011.9 1012.3 1009.5 1012.2 1013.1 1015.7 1009.4 1002.1 DAY 17 23 30 29 7 10 17 2 13 2 20 5 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 885.9 887.9 882.7 885.4 885.0 881.3 881.0 881.5 883.5 887.5 888.0 885.5 884.6 MAX. QFE PRESSURE IN HPA 895.4 895.1 888.5 889.8 889.4 885.2 884.7 885.6 893.3 894.6 894.5 890.4 895.4 DAY 22 8 8 11 21 2 10 19 23 24 8 18 MIN. QFE PRESSURE IN HPA 876.1 878.1 872.4 879.0 879.3 877.1 878.0 876.0 877.6 879.2 882.2 876.5 872.4 DAY 17 23 30 29 7 11 5 1 12 2 20 5 MEAN QNH PRESSURE IN HPA 1019.9 1022.1 1016.3 1019.4 1018.9 1014.7 1014.4 1015.0 1017.2 1021.7 1022.2 1019.4 1018.4 MAX. QNH PRESSURE IN HPA 1030.5 1030.2 1022.8 1024.3 1023.8 1019.1 1018.5 1019.6 1028.2 1029.6 1029.5 1024.9 1030.5 DAY 22 8 8 11 21 2 10 19 23 24 8 18 MIN. QNH PRESSURE IN HPA 1008.9 1011.1 1004.8 1012.2 1012.5 1010.0 1011.0 1008.8 1010.6 1012.4 1015.7 1009.4 1004.8 DAY 17 23 30 29 7 11 5 1 12 2 20 5 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 886.5 888.7 883.2 885.9 885.2 881.4 881.2 881.8 883.9 888.2 888.8 886.4 885.1 MAX. QFE PRESSURE IN HPA 895.6 895.8 889.3 890.7 889.8 885.4 884.9 885.4 893.1 895.4 894.9 891.6 895.8 DAY 21 8 8 11 1 2 10 20 23 24 8 18 MIN. QFE PRESSURE IN HPA 876.8 879.8 873.3 880.8 880.4 877.1 877.3 875.5 877.7 880.3 883.4 879.9 873.3 DAY 17 23 28 14 6 10 6 1 13 2 24 5 MEAN QNH PRESSURE IN HPA 1020.6 1023.0 1016.9 1019.9 1019.1 1014.9 1014.6 1015.3 1017.6 1022.4 1023.1 1020.5 1019.0 MAX. QNH PRESSURE IN HPA 1030.8 1031.0 1023.7 1025.3 1024.3 1019.3 1018.8 1019.3 1028.0 1030.5 1030.0 1026.3 1031.0 DAY 21 8 8 11 1 2 10 20 23 24 8 18 MIN. QNH PRESSURE IN HPA 1009.7 1013.1 1005.8 1014.2 1013.7 1010.0 1010.3 1008.2 1010.7 1013.6 1017.1 1013.2 1005.8 DAY 17 23 28 14 6 10 6 1 13 2 24 5 MEAN QFF PRESSURE IN HPA 1026.1 1029.1 1017.3 1017.1 1014.1 1006.4 1005.2 1007.2 1012.5 1019.5 1024.1 1022.3 1016.7 MAX. QFF PRESSURE IN HPA 1036.2 1037.6 1025.6 1023.3 1026.2 1012.7 1009.1 1012.9 1026.3 1031.4 1031.8 1028.4 1037.6 DAY 28 8 8 9 1 2 20 20 23 24 8 18 MIN. QFF PRESSURE IN HPA 1014.9 1016.3 1002.7 1009.6 1006.1 1001.6 1000.3 1000.4 1003.5 1008.1 1015.7 1013.9 1000.3 DAY 17 23 28 14 31 10 6 1 13 2 16 5 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) -0.1 2.8 8.6 14.4 21.7 28.2 27.9 27.5 23.6 15.1 12.2 2.5 15.4 MINIMUN AIR TEMPERATURE (C) -3.9 -1.7 1.4 7.1 11.3 16.5 17.2 15.4 10.3 5.1 3.3 -2.9 6.6 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 3 0 0 0 0 0 4 DAYS WITH MINIMUM TEMP. <=-4 13 5 4 0 0 0 0 0 0 0 0 10 32 DAYS WITH FREEZING MIN.<= 0 28 22 9 0 0 0 0 0 0 4 6 20 89 TEMPERATURE RECORDS LOWEST(C) -11.2 -5.4 -6.4 2.0 5.6 13.5 14.0 11.0 5.0 -2.0 -1.6 -17.6 -17.6 DAY 11 24 19 1 17 8 14 25 26 17 19 27 MAXIMUM AIR TEMPERATURE (C) 3.0 6.3 13.9 19.2 26.8 32.8 32.4 32.3 29.5 21.2 17.9 6.4 20.1 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 7 25 26 24 12 0 0 0 96 DAYS WITH MAXIMUM TEMP. <= 0 8 3 1 0 0 0 0 0 0 0 0 8 20 TEMPERATURE RECORDS HIGHEST(C) 9.6 15.2 22.2 31.2 33.6 36.6 37.4 35.6 35.6 28.2 26.2 20.2 37.4 DAY 23 19 14 29 19 21 30 8 14 4 10 6 DIF. BETWEEN (MAX.-MIN.) (C) 6.9 8.0 12.5 12.1 15.5 16.3 15.2 16.9 19.2 16.1 14.6 9.3 13.5 MEAN DAILY TEMP. (MDT) (C) -0.5 2.3 7.6 13.1 19.1 24.7 24.8 23.8 19.9 13.1 10.6 1.7 13.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.0 12.2 110.6 118.1 72.0 17.1 0.0 0.0 0.0 331.1 HEATING DEG. DAYS(BASE 18 0C) 553.0 440.4 321.4 154.6 18.9 0.0 0.0 0.0 5.7 151.7 221.5 504.1 2371.2 DEWPOINT (MEAN C) -3.4 -2.1 -2.3 5.0 5.2 6.7 7.0 9.4 5.5 1.9 0.1 -3.2 2.5 MIXING RATIO (G/KG) 3.43 3.78 3.80 6.30 6.47 7.23 7.45 8.73 6.67 5.16 4.41 3.55 5.58 VAPOUR PRESSURE (HPA) 4.87 5.34 5.38 8.86 9.10 10.12 10.43 12.21 9.38 7.30 6.26 5.04 7.86 SATURATION DEF. (HPA) 1.41 2.48 6.67 8.63 17.85 29.15 28.10 25.54 21.43 11.03 8.98 3.32 13.72 RELATIVE HUMIDITY (MEAN %) 80 73 52 58 38 28 29 35 34 46 48 72 49 RELATIVE HUMIDITY (MAX. %) 89 88 73 80 60 46 46 56 54 65 67 82 67 RELATIVE HUMIDITY (MIN. %) 70 60 38 43 25 18 20 24 23 32 34 62 37 RELATIVE HUMIDITY (MEAN% 03UTC) 87 86 71 79 59 46 46 57 54 63 67 81 66 RELATIVE HUMIDITY (MEAN% 09UTC) 75 66 43 49 29 21 23 27 25 38 37 65 42 RELATIVE HUMIDITY (MEAN% 15UTC) 83 74 51 56 35 24 27 30 30 43 47 74 48 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 20.1 38.2 9.8 22.6 8.1 0.0 0.0 0.0 0.0 8.0 12.0 22.6 141.4 DAYS WITH PRECIPITATION >=10 0 1 0 0 0 0 0 0 0 0 1 0 2 DAYS WITH PRECIPITATION >= 5 1 4 0 1 0 0 0 0 0 1 1 2 10 DAYS WITH PRECIPITATION >= 1 7 7 4 5 3 0 0 0 0 2 1 7 36 DAYS WITH PRECIPITATION 15 11 11 15 6 0 3 0 0 2 1 10 74 GREATEST DAILY PRECIPITATION 5.0 11.0 4.0 9.0 4.0 0.0 0.0 0.0 0.0 6.0 12.0 7.0 12.0 DAY 8 16 16 9 1 ** ** ** ** 6 14 26 DAY WITH THUNDER STORM 1 0 0 3 0 0 0 0 0 0 0 0 4 DAYS WITH SNOW OR SLEET 11 10 3 0 0 0 0 0 0 0 0 4 28 DAYS WITH DUST 0 1 4 7 9 12 6 5 7 2 0 1 54 WIND DIRECTION (PREVAILING) 315 315 315 135 90 135 135 135 135 90 315 315 315 PREVAILING WIND SPEED(KNOTS) 18.7 13.3 18.0 9.5 10.2 12.8 12.6 11.7 10.0 6.3 8.0 11.3 14.9 PREVAILING WIND PERCENT 20.1 31.4 31.6 21.3 27.1 24.7 29.0 43.7 27.3 12.0 22.0 23.9 17.7 CALMS PERCENT OF WIND 51.9 43.6 35.5 32.0 28.4 27.3 32.9 22.2 45.3 60.7 62.7 59.4 42.1 NO. OF WIND OBSERVATION 154 140 155 150 155 150 155 126 150 150 150 155 1790 VECTOR WIND DIRECTION (MEAN) 302 307 303 332 98 93 104 118 118 45 310 309 2 VECTOR WIND MAGNITUDE(KNOTS) 5.0 4.2 6.1 1.7 3.6 2.9 2.5 5.7 3.4 0.5 1.6 2.9 0.6 WIND STEADINESES (MEAN %) 72.5 67.7 59.8 20.2 40.0 34.9 30.5 67.9 64.2 16.7 59.3 76.3 9.0 WIND SPEED (MEAN KNOTS) 6.9 6.2 10.2 8.4 9.0 8.3 8.2 8.4 5.3 3.0 2.7 3.8 6.7 FASTEST WIND DIRECTION 300 310 300 320 310 330 320 300 310 320 300 310 300 FASTEST WIND SPEED (KNOTS) 37 35 58 52 47 41 41 23 33 23 23 39 58 DAY 7 11 5 16 14 16 31 17 2 15 22 7 DAYS WITH SKY CLEAR (0-2)/8 3 7 12 4 19 25 24 26 29 19 20 12 200 DAYS WITH P.CLOUDY (3-6)/8 14 9 10 20 11 5 5 0 1 9 8 11 103 DAYS WITH CLOUDY (7-8)/8 14 12 9 6 1 0 2 0 0 2 2 8 56 DAYS WITH VISIBILITY =< 2 KM 4 4 0 2 0 0 1 0 0 2 0 7 20 DURATION OF SUNSHINE HOURS 112.3 132.2 194.0 196.4 ****** ****** ****** ****** ****** ****** ****** 129.9 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 887.9 884.9 887.6 883.2 884.2 881.2 881.4 882.8 884.8 888.6 889.4 888.4 885.4 MAX. QFE PRESSURE IN HPA 895.0 895.8 898.8 891.1 892.7 886.5 886.1 887.6 890.0 899.6 899.1 896.5 899.6 DAY-HOUR 20- 6 8- 6 17- 6 24- 6 16- 3 8- 3 15- 6 29- 6 24- 6 15-15 22-15 29- 3 MIN. QFE PRESSURE IN HPA 880.3 871.9 879.0 873.7 870.7 875.7 877.0 878.0 879.6 881.5 879.1 878.0 870.7 DAY-HOUR 23-12 16- 3 14-15 15-15 13- 9 27-12 30-12 7-12 1-15 14-12 1-12 25-12 MEAN QNH PRESSURE IN HPA 1022.1 1018.7 1021.8 1016.9 1018.0 1014.6 1014.8 1016.4 1018.6 1022.9 1023.8 1022.6 1019.3 MAX. QNH PRESSURE IN HPA 1030.1 1031.0 1034.4 1025.7 1027.5 1020.6 1020.1 1021.8 1024.5 1035.2 1034.7 1031.8 1035.2 DAY-HOUR 20- 6 8- 6 17- 6 24- 6 16- 3 8- 3 15- 6 29- 6 24- 6 15-15 22-15 29- 3 MIN. QNH PRESSURE IN HPA 1013.6 1004.2 1012.2 1006.2 1002.8 1008.5 1009.9 1011.0 1012.8 1015.0 1012.3 1011.0 1002.8 DAY-HOUR 23-12 16- 3 14-15 15-15 13- 9 27-12 30-12 7-12 1-15 14-12 1-12 25-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 887.8 884.9 888.0 883.9 885.3 882.3 882.3 883.9 885.6 889.5 890.2 888.6 886.0 MAX. QFE PRESSURE IN HPA 895.0 894.7 897.7 890.8 892.7 886.5 885.8 887.2 889.6 898.0 898.1 896.5 898.1 DAY 27 8 17 24 16 8 15 3 24 19 14 29 MIN. QFE PRESSURE IN HPA 881.0 871.9 880.3 875.7 874.2 879.6 879.5 879.9 882.6 884.2 881.3 882.9 871.9 DAY 5 16 25 16 13 27 30 8 14 26 1 18 MEAN QNH PRESSURE IN HPA 1022.0 1018.8 1022.3 1017.7 1019.3 1015.8 1015.8 1017.6 1019.6 1023.9 1024.7 1023.0 1020.0 MAX. QNH PRESSURE IN HPA 1030.1 1029.8 1033.1 1025.4 1027.5 1020.6 1019.8 1021.4 1024.0 1033.5 1033.6 1031.8 1033.6 DAY 27 8 17 24 16 8 15 3 24 19 14 29 MIN. QNH PRESSURE IN HPA 1014.4 1004.2 1013.6 1008.5 1006.8 1012.8 1012.7 1013.2 1016.2 1018.0 1014.7 1016.5 1004.2 DAY 5 16 25 16 13 27 30 8 14 26 1 18 MEAN QFF PRESSURE IN HPA 1026.8 1022.2 1023.1 1015.1 1013.6 1006.9 1006.9 1008.4 1013.7 1021.9 1024.3 1026.8 1017.5 MAX. QFF PRESSURE IN HPA 1037.5 1035.4 1037.7 1023.9 1024.9 1014.1 1010.9 1012.1 1019.6 1036.1 1034.6 1041.1 1041.1 DAY 27 8 17 4 16 8 15 24 26 16 14 29 MIN. QFF PRESSURE IN HPA 1016.2 1004.3 1010.5 1004.4 999.0 1002.9 1003.0 1003.9 1008.0 1014.3 1013.4 1018.7 999.0 DAY 5 16 25 16 13 27 30 8 2 26 1 18 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 888.8 885.8 888.9 884.4 885.4 882.3 882.3 884.0 886.1 889.9 890.5 889.4 886.5 MAX. QFE PRESSURE IN HPA 895.0 895.8 898.8 891.1 892.6 886.0 886.1 887.6 890.0 899.4 898.8 896.5 899.4 DAY 20 8 17 24 16 8 15 29 24 19 14 29 MIN. QFE PRESSURE IN HPA 881.6 873.0 881.1 876.2 873.3 878.4 879.7 880.2 883.0 885.0 881.6 882.9 873.0 DAY 5 16 25 16 13 27 28 8 14 26 1 25 MEAN QNH PRESSURE IN HPA 1023.1 1019.8 1023.3 1018.2 1019.4 1015.8 1015.9 1017.8 1020.1 1024.3 1025.0 1023.8 1020.5 MAX. QNH PRESSURE IN HPA 1030.1 1031.0 1034.4 1025.7 1027.4 1020.0 1020.1 1021.8 1024.5 1035.0 1034.4 1031.8 1035.0 DAY 20 8 17 24 16 8 15 29 24 19 14 29 MIN. QNH PRESSURE IN HPA 1015.1 1005.4 1014.5 1009.0 1005.8 1011.5 1012.9 1013.5 1016.6 1018.9 1015.1 1016.5 1005.4 DAY 5 16 25 16 13 27 28 8 14 26 1 25 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 887.7 884.9 887.8 883.4 884.3 881.3 881.4 882.9 884.8 888.2 888.9 888.0 885.3 MAX. QFE PRESSURE IN HPA 894.0 895.0 897.8 890.3 891.4 884.8 885.1 886.0 888.3 898.1 897.7 894.7 898.1 DAY 27 8 17 3 15 8 15 3 24 15 14 29 MIN. QFE PRESSURE IN HPA 881.0 873.2 880.6 875.4 870.7 877.0 878.0 878.9 881.7 882.6 879.9 879.6 870.7 DAY 5 16 25 16 13 27 30 8 14 14 1 25 MEAN QNH PRESSURE IN HPA 1021.9 1018.8 1022.0 1017.1 1018.1 1014.7 1014.9 1016.5 1018.7 1022.5 1023.2 1022.2 1019.2 MAX. QNH PRESSURE IN HPA 1029.0 1030.1 1033.2 1024.8 1026.1 1018.7 1019.0 1020.0 1022.6 1033.6 1033.1 1029.8 1033.6 DAY 27 8 17 3 15 8 15 3 24 15 14 29 MIN. QNH PRESSURE IN HPA 1014.4 1005.7 1013.9 1008.1 1002.8 1009.9 1011.0 1012.0 1015.2 1016.2 1013.2 1012.8 1002.8 DAY 5 16 25 16 13 27 30 8 14 14 1 25 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 887.2 884.1 886.5 882.1 882.9 880.0 880.4 881.6 883.5 887.4 888.3 887.5 884.3 MAX. QFE PRESSURE IN HPA 893.9 893.9 896.1 889.9 890.5 883.2 884.0 884.7 887.0 899.0 898.0 894.1 899.0 DAY 26 8 17 3 15 7 15 29 23 15 22 29 MIN. QFE PRESSURE IN HPA 880.3 873.5 880.4 874.6 870.9 875.7 877.0 878.0 880.0 881.5 879.1 878.0 870.9 DAY 23 16 14 15 13 27 30 7 1 14 1 25 MEAN QNH PRESSURE IN HPA 1021.4 1017.9 1020.6 1015.6 1016.5 1013.3 1013.7 1015.1 1017.2 1021.6 1022.6 1021.7 1018.1 MAX. QNH PRESSURE IN HPA 1028.9 1028.9 1031.3 1024.4 1025.1 1016.9 1017.8 1018.5 1021.1 1034.6 1033.5 1029.1 1034.6 DAY 26 8 17 3 15 7 15 29 23 15 22 29 MIN. QNH PRESSURE IN HPA 1013.6 1006.0 1013.7 1007.2 1003.1 1008.5 1009.9 1011.0 1013.3 1015.0 1012.3 1011.0 1003.1 DAY 23 16 14 15 13 27 30 7 1 14 1 25 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 887.9 884.6 886.9 882.5 883.4 880.0 880.4 881.7 883.8 888.0 889.4 888.3 884.7 MAX. QFE PRESSURE IN HPA 894.9 894.4 895.8 890.6 891.2 883.8 883.8 884.7 887.4 899.6 899.1 894.4 899.6 DAY 26 7 17 3 15 7 15 29 22 15 22 28 MIN. QFE PRESSURE IN HPA 881.0 875.8 879.0 873.7 873.6 876.1 877.7 878.0 879.6 882.5 882.6 878.0 873.6 DAY 23 16 14 15 13 27 4 7 1 31 1 25 MEAN QNH PRESSURE IN HPA 1022.1 1018.4 1021.0 1016.0 1017.0 1013.3 1013.8 1015.2 1017.6 1022.3 1023.9 1022.6 1018.6 MAX. QNH PRESSURE IN HPA 1030.0 1029.4 1031.0 1025.2 1025.8 1017.5 1017.5 1018.5 1021.6 1035.2 1034.7 1029.4 1035.2 DAY 26 7 17 3 15 7 15 29 22 15 22 28 MIN. QNH PRESSURE IN HPA 1014.4 1008.6 1012.2 1006.2 1006.1 1008.9 1010.7 1011.0 1012.8 1016.1 1016.2 1011.0 1006.1 DAY 23 16 14 15 13 27 4 7 1 31 1 25 MEAN QFF PRESSURE IN HPA 1026.9 1021.6 1021.8 1013.4 1011.3 1004.4 1004.9 1006.6 1011.6 1020.3 1023.5 1026.5 1016.1 MAX. QFF PRESSURE IN HPA 1035.9 1034.9 1037.0 1024.9 1023.0 1011.3 1008.5 1011.4 1017.3 1036.7 1035.6 1039.7 1039.7 DAY 26 7 17 3 15 7 15 29 25 15 14 29 MIN. QFF PRESSURE IN HPA 1016.5 1009.8 1008.1 1001.9 1000.6 998.6 1000.8 1001.1 1005.1 1013.2 1014.3 1016.1 998.6 DAY 23 16 14 15 13 27 30 7 1 26 1 25 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 GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.2 2.7 6.6 15.3 18.0 25.4 28.0 26.4 22.0 15.4 8.7 4.7 14.5 MINIMUN AIR TEMPERATURE (C) -2.9 -2.0 2.4 8.0 10.0 14.4 17.0 13.5 10.8 5.0 0.9 -1.0 6.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 1 0 0 0 0 0 1 DAYS WITH MINIMUM TEMP. <=-4 7 9 2 0 0 0 0 0 0 0 1 9 28 DAYS WITH FREEZING MIN.<= 0 29 20 7 0 0 0 0 0 0 2 12 19 89 TEMPERATURE RECORDS LOWEST(C) -12.8 -11.8 -5.6 1.0 3.8 10.4 13.2 7.0 3.4 -0.6 -4.2 -7.6 -12.8 DAY 2 14 12 15 6 24 18 23 29 14 29 20 MAXIMUM AIR TEMPERATURE (C) 4.8 6.7 9.6 19.8 22.2 29.3 32.2 31.1 26.9 20.6 13.8 9.0 18.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 12 24 22 9 0 0 0 69 DAYS WITH MAXIMUM TEMP. <= 0 0 5 1 0 0 0 0 0 0 0 0 0 6 TEMPERATURE RECORDS HIGHEST(C) 11.6 16.2 18.0 27.4 31.2 33.0 38.0 34.6 33.4 25.2 23.0 18.8 38.0 DAY 31 27 31 25 31 12 8 6 9 26 5 10 DIF. BETWEEN (MAX.-MIN.) (C) 7.7 8.7 7.2 11.8 12.2 14.9 15.2 17.6 16.1 15.6 12.9 10.0 12.5 MEAN DAILY TEMP. (MDT) (C) 1.0 2.4 6.0 13.9 16.1 21.8 24.6 22.3 18.8 12.8 7.4 4.0 12.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 3.7 34.3 114.6 54.6 12.4 0.0 0.0 0.0 219.6 HEATING DEG. DAYS(BASE 18 0C) 528.0 437.2 371.9 126.9 76.8 0.0 0.0 0.2 35.7 149.9 306.4 432.7 2465.7 DEWPOINT (MEAN C) -1.7 -3.4 2.5 6.1 7.4 6.6 8.2 6.6 5.6 1.0 0.9 -1.9 3.2 MIXING RATIO (G/KG) 3.86 3.53 5.33 6.81 7.61 7.28 8.01 7.54 6.69 4.78 4.71 3.91 5.84 VAPOUR PRESSURE (HPA) 5.47 5.00 7.51 9.58 10.65 10.19 11.18 10.55 9.43 6.78 6.69 5.53 8.21 SATURATION DEF. (HPA) 1.35 2.98 2.71 8.86 10.98 22.86 27.68 24.95 18.73 11.49 5.12 3.53 11.77 RELATIVE HUMIDITY (MEAN %) 82 68 77 58 54 33 31 31 39 42 61 66 54 RELATIVE HUMIDITY (MAX. %) 91 83 89 80 76 51 46 47 59 66 85 84 71 RELATIVE HUMIDITY (MIN. %) 73 54 66 42 40 23 23 23 27 27 45 50 41 RELATIVE HUMIDITY (MEAN% 03UTC) 90 81 88 80 75 51 45 47 58 63 82 83 70 RELATIVE HUMIDITY (MEAN% 09UTC) 78 59 72 49 46 27 25 26 31 32 51 57 46 RELATIVE HUMIDITY (MEAN% 15UTC) 82 70 77 54 51 29 30 27 37 41 62 67 52 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 36.6 6.3 77.9 87.0 65.3 0.4 0.0 0.0 4.5 5.3 5.7 30.1 319.1 DAYS WITH PRECIPITATION >=10 2 0 3 3 3 0 0 0 0 0 0 1 12 DAYS WITH PRECIPITATION >= 5 4 0 6 4 4 0 0 0 0 0 0 2 20 DAYS WITH PRECIPITATION >= 1 6 3 11 6 9 0 0 0 1 2 2 4 44 DAYS WITH PRECIPITATION 8 9 19 13 11 1 0 0 2 4 5 8 80 GREATEST DAILY PRECIPITATION 10.8 3.0 15.0 33.0 21.0 0.4 0.0 0.0 4.3 3.0 3.0 18.6 33.0 DAY 26 4 16 27 28 23 ** ** 27 12 23 15 DAY WITH THUNDER STORM 0 0 0 2 5 0 0 0 0 0 0 0 7 DAYS WITH SNOW OR SLEET 7 6 1 0 0 0 0 0 0 0 0 2 16 DAYS WITH DUST 0 0 1 0 2 2 3 1 4 0 1 2 16 WIND DIRECTION (PREVAILING) 315 315 135 315 315 90 90 135 135 315 315 315 315 PREVAILING WIND SPEED(KNOTS) 12.9 14.2 7.7 12.1 15.2 7.8 6.8 7.3 8.1 7.5 6.6 8.6 12.1 PREVAILING WIND PERCENT 30.3 32.9 29.7 25.3 22.6 22.0 18.7 27.1 22.1 14.7 10.7 28.4 18.4 CALMS PERCENT OF WIND 57.4 47.9 42.6 43.3 42.6 46.0 50.3 40.0 48.3 55.3 66.0 47.7 48.9 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 145 150 150 155 1815 VECTOR WIND DIRECTION (MEAN) 301 306 298 305 318 87 68 118 110 338 353 320 325 VECTOR WIND MAGNITUDE(KNOTS) 4.4 4.8 0.7 1.4 2.3 1.6 1.0 2.6 1.1 1.0 0.8 2.7 1.1 WIND STEADINESES (MEAN %) 89.8 73.8 11.3 22.6 39.0 35.6 23.8 63.4 24.4 34.5 40.0 69.2 23.4 WIND SPEED (MEAN KNOTS) 4.9 6.5 6.2 6.2 5.9 4.5 4.2 4.1 4.5 2.9 2.0 3.9 4.7 FASTEST WIND DIRECTION 310 290 300 330 320 320 310 310 150 350 310 330 320 FASTEST WIND SPEED (KNOTS) 39 39 39 45 68 19 29 23 23 16 16 23 68 DAY 5 5 7 27 23 13 8 19 14 31 2 26 DAYS WITH SKY CLEAR (0-2)/8 10 4 3 11 13 26 29 30 24 23 11 10 194 DAYS WITH P.CLOUDY (3-6)/8 12 11 10 15 13 4 1 1 4 5 15 13 104 DAYS WITH CLOUDY (7-8)/8 9 13 18 4 5 0 1 0 1 2 4 8 65 DAYS WITH VISIBILITY =< 2 KM 11 1 1 1 2 0 0 0 0 0 1 5 22 DURATION OF SUNSHINE HOURS 137.2 109.3 95.5 238.4 234.4 347.4 354.4 347.1 265.9 246.5 177.2 142.9 2696.2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 887.0 887.6 885.6 884.9 882.0 882.5 880.6 882.5 886.7 889.5 890.3 885.7 885.4 MAX. QFE PRESSURE IN HPA 895.4 897.0 893.0 891.9 887.4 888.6 884.6 887.8 892.7 893.6 895.5 895.5 897.0 DAY-HOUR 12- 6 15- 6 12- 6 15- 6 5- 3 24- 3 1- 3 22- 6 17- 6 21- 6 23- 6 17- 6 MIN. QFE PRESSURE IN HPA 877.5 878.8 870.4 874.8 872.3 875.0 873.6 876.2 879.1 884.3 881.3 877.0 870.4 DAY-HOUR 25- 9 4- 9 7- 3 5- 3 22-12 12-12 8-12 11-12 3-12 4-12 5-12 26- 3 MEAN QNH PRESSURE IN HPA 1021.1 1021.8 1019.6 1018.7 1015.5 1016.1 1014.0 1016.1 1020.8 1024.0 1024.8 1019.7 1019.3 MAX. QNH PRESSURE IN HPA 1030.5 1032.3 1027.9 1026.6 1021.6 1022.9 1018.4 1022.0 1027.5 1028.5 1030.7 1030.7 1032.3 DAY-HOUR 12- 6 15- 6 12- 6 15- 6 5- 3 24- 3 1- 3 22- 6 17- 6 21- 6 23- 6 17- 6 MIN. QNH PRESSURE IN HPA 1010.5 1011.9 1002.5 1007.4 1004.6 1007.7 1006.1 1009.0 1012.3 1018.1 1014.7 1009.9 1002.5 DAY-HOUR 25- 9 4- 9 7- 3 5- 3 22-12 12-12 8-12 11-12 3-12 4-12 5-12 26- 3 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 887.1 887.8 885.8 885.5 882.6 883.5 881.6 883.5 887.7 890.2 890.8 886.0 886.0 MAX. QFE PRESSURE IN HPA 894.6 896.3 891.7 891.0 887.4 888.6 884.6 887.5 892.4 893.4 894.4 894.2 896.3 DAY 12 15 5 15 5 24 1 22 17 21 27 17 MIN. QFE PRESSURE IN HPA 877.7 879.8 870.4 874.8 873.2 877.3 874.6 879.4 882.5 886.0 883.7 877.0 870.4 DAY 26 4 7 5 23 12 8 6 3 24 5 26 MEAN QNH PRESSURE IN HPA 1021.3 1022.0 1019.8 1019.4 1016.2 1017.2 1015.0 1017.2 1022.0 1024.7 1025.4 1020.0 1020.0 MAX. QNH PRESSURE IN HPA 1029.6 1031.5 1026.4 1025.6 1021.6 1022.9 1018.4 1021.7 1027.2 1028.3 1029.4 1029.2 1031.5 DAY 12 15 5 15 5 24 1 22 17 21 27 17 MIN. QNH PRESSURE IN HPA 1010.7 1013.1 1002.5 1007.4 1005.7 1010.3 1007.2 1012.6 1016.1 1020.0 1017.4 1009.9 1002.5 DAY 26 4 7 5 23 12 8 6 3 24 5 26 MEAN QFF PRESSURE IN HPA 1025.7 1025.6 1021.0 1016.7 1012.0 1009.3 1006.0 1009.3 1016.5 1022.8 1026.5 1022.8 1017.8 MAX. QFF PRESSURE IN HPA 1035.3 1039.7 1032.9 1026.6 1019.4 1016.4 1010.2 1016.3 1025.1 1028.5 1032.0 1034.7 1039.7 DAY 12 14 12 15 5 24 12 23 29 14 27 18 MIN. QFF PRESSURE IN HPA 1013.4 1013.6 1001.9 1002.6 999.7 1001.1 996.6 1002.8 1008.2 1017.3 1016.3 1012.3 996.6 DAY 26 28 7 5 23 12 8 6 8 24 5 26 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 888.0 888.5 886.4 885.8 882.7 883.5 881.5 883.6 887.9 890.6 891.5 886.9 886.4 MAX. QFE PRESSURE IN HPA 895.4 897.0 893.0 891.9 887.3 888.6 884.6 887.8 892.7 893.6 895.5 895.5 897.0 DAY 12 15 12 15 4 24 12 22 17 21 23 17 MIN. QFE PRESSURE IN HPA 878.4 880.3 871.5 875.8 872.4 877.1 874.6 879.2 882.1 886.2 883.7 878.9 871.5 DAY 5 4 7 5 23 12 8 12 3 24 5 26 MEAN QNH PRESSURE IN HPA 1022.2 1022.8 1020.5 1019.7 1016.3 1017.2 1015.0 1017.3 1022.1 1025.1 1026.2 1021.0 1020.4 MAX. QNH PRESSURE IN HPA 1030.5 1032.3 1027.9 1026.6 1021.5 1022.9 1018.4 1022.0 1027.5 1028.5 1030.7 1030.7 1032.3 DAY 12 15 12 15 4 24 12 22 17 21 23 17 MIN. QNH PRESSURE IN HPA 1011.5 1013.6 1003.7 1008.6 1004.8 1010.0 1007.2 1012.4 1015.6 1020.2 1017.4 1012.0 1003.7 DAY 5 4 7 5 23 12 8 12 3 24 5 26 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 886.6 887.4 885.7 884.9 881.9 882.6 880.7 882.6 886.6 889.3 889.9 885.4 885.3 MAX. QFE PRESSURE IN HPA 893.7 896.8 893.0 890.9 887.3 887.8 883.7 886.9 891.4 892.3 894.3 894.5 896.8 DAY 11 15 12 15 4 24 11 22 30 21 23 17 MIN. QFE PRESSURE IN HPA 877.5 878.8 870.7 875.8 872.5 876.2 874.0 878.1 880.1 885.3 882.4 879.3 870.7 DAY 25 4 7 5 23 12 8 12 3 24 5 26 MEAN QNH PRESSURE IN HPA 1020.7 1021.6 1019.7 1018.7 1015.4 1016.2 1014.1 1016.2 1020.7 1023.7 1024.4 1019.3 1019.2 MAX. QNH PRESSURE IN HPA 1028.6 1032.1 1027.9 1025.5 1021.5 1022.0 1017.4 1021.0 1026.1 1027.1 1029.3 1029.5 1032.1 DAY 11 15 12 15 4 24 11 22 30 21 23 17 MIN. QNH PRESSURE IN HPA 1010.5 1011.9 1002.8 1008.6 1004.9 1009.0 1006.5 1011.1 1013.4 1019.2 1016.0 1012.5 1002.8 DAY 25 4 7 5 23 12 8 12 3 24 5 26 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 886.4 886.9 884.9 883.8 881.1 881.5 879.6 881.4 885.5 888.6 889.2 884.8 884.5 MAX. QFE PRESSURE IN HPA 893.6 896.4 892.9 890.1 886.9 886.3 882.6 885.3 890.8 892.0 893.3 893.6 896.4 DAY 11 15 12 15 4 17 11 22 30 21 23 17 MIN. QFE PRESSURE IN HPA 877.9 878.8 871.9 875.1 872.3 875.0 873.6 876.2 879.1 884.3 881.3 878.5 871.9 DAY 3 4 7 10 22 12 8 11 3 4 5 1 MEAN QNH PRESSURE IN HPA 1020.5 1021.0 1018.8 1017.6 1014.5 1014.9 1012.9 1014.8 1019.4 1022.9 1023.6 1018.7 1018.3 MAX. QNH PRESSURE IN HPA 1028.5 1031.7 1027.7 1024.6 1021.0 1020.3 1016.2 1019.2 1025.4 1026.7 1028.2 1028.5 1031.7 DAY 11 15 12 15 4 17 11 22 30 21 23 17 MIN. QNH PRESSURE IN HPA 1010.9 1011.9 1004.2 1007.8 1004.6 1007.7 1006.1 1009.0 1012.3 1018.1 1014.7 1011.6 1004.2 DAY 3 4 7 10 22 12 8 11 3 4 5 1 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 887.0 887.6 885.4 884.4 881.7 881.7 879.8 881.4 885.9 889.1 890.0 885.6 885.0 MAX. QFE PRESSURE IN HPA 894.3 896.4 892.6 890.7 886.7 887.1 883.6 885.6 891.5 892.8 894.5 893.7 896.4 DAY 12 15 12 15 4 22 11 22 30 21 23 17 MIN. QFE PRESSURE IN HPA 878.7 879.1 873.1 875.9 872.7 875.1 874.0 876.8 879.3 884.5 883.5 878.8 872.7 DAY 3 4 7 10 22 12 7 11 3 4 5 1 MEAN QNH PRESSURE IN HPA 1021.1 1021.8 1019.4 1018.3 1015.1 1015.2 1013.0 1014.9 1019.8 1023.4 1024.5 1019.5 1018.8 MAX. QNH PRESSURE IN HPA 1029.3 1031.7 1027.4 1025.3 1020.8 1021.2 1017.3 1019.6 1026.2 1027.6 1029.5 1028.6 1031.7 DAY 12 15 12 15 4 22 11 22 30 21 23 17 MIN. QNH PRESSURE IN HPA 1011.8 1012.3 1005.5 1008.7 1005.1 1007.8 1006.5 1009.7 1012.5 1018.3 1017.2 1011.9 1005.1 DAY 3 4 7 10 22 12 7 11 3 4 5 1 MEAN QFF PRESSURE IN HPA 1025.4 1025.4 1020.5 1015.4 1010.8 1007.3 1004.0 1007.0 1014.2 1021.4 1025.6 1022.3 1016.6 MAX. QFF PRESSURE IN HPA 1034.3 1039.8 1032.7 1025.8 1018.3 1013.6 1008.9 1013.7 1024.5 1025.7 1032.5 1034.1 1039.8 DAY 12 14 12 15 12 22 11 22 27 13 24 17 MIN. QFF PRESSURE IN HPA 1014.9 1012.4 1006.7 1005.0 998.7 998.5 996.4 1000.5 1005.1 1014.7 1015.1 1012.3 996.4 DAY 25 4 7 10 22 12 7 6 3 4 5 1 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 GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.5 3.2 4.5 ***** ***** ***** ***** 24.8 20.4 15.0 11.2 4.4 ***** MINIMUN AIR TEMPERATURE (C) -5.1 -1.6 -1.4 ***** ***** ***** ***** 13.9 8.6 4.1 1.6 -0.2 ***** DAYS WITH MINIMUM TEMP. >=21 0 0 0 **** **** **** **** 0 0 0 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 16 9 5 **** **** **** **** 0 0 1 4 4 **** DAYS WITH FREEZING MIN.<= 0 29 20 21 **** **** **** **** 0 0 3 11 19 **** TEMPERATURE RECORDS LOWEST(C) -17.5 -9.0 -14.4 ***** ***** ***** ***** 6.8 3.8 -4.0 -7.8 -5.8 ***** DAY 28 17 12 ** ** ** ** 15 10 18 21 3 MAXIMUM AIR TEMPERATURE (C) 4.6 8.5 7.9 ***** ***** ***** ***** 28.9 25.7 21.0 17.3 8.1 ***** DAYS WITH MAXIMUM TEMP. >=30 0 0 0 **** **** **** **** 11 1 0 0 0 **** DAYS WITH MAXIMUM TEMP. <= 0 7 0 3 **** **** **** **** 0 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C) 12.8 19.8 18.6 ***** ***** ***** ***** 34.4 30.8 27.6 24.0 17.8 ***** DAY 20 24 30 ** ** ** ** 25 25 11 8 16 DIF. BETWEEN (MAX.-MIN.) (C) 9.7 10.1 9.3 ***** ***** ***** ***** 15.0 17.1 16.9 15.7 8.3 ***** MEAN DAILY TEMP. (MDT) (C) -0.2 3.5 3.2 ***** ***** ***** ***** 21.4 17.1 12.5 9.5 4.0 ***** COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 ****** ****** ****** ****** 40.1 0.4 0.0 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C) 565.5 421.5 457.7 ****** ****** ****** ****** 3.4 40.2 169.2 256.3 420.2 ****** DEWPOINT (MEAN C) -4.8 -3.2 -2.2 ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MIXING RATIO (G/KG) 3.18 3.56 3.92 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** VAPOUR PRESSURE (HPA) 4.50 5.02 5.53 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** SATURATION DEF. (HPA) 2.28 3.58 3.32 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** RELATIVE HUMIDITY (MEAN %) 70 63 66 *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MAX. %) 84 80 85 *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MIN. %) 56 47 51 *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 03UTC) 81 78 81 *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) 63 54 57 *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 15UTC) 72 63 66 *** *** *** *** *** *** *** *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 30.8 13.9 44.5 ****** ****** ****** ****** 0.0 0.0 5.0 1.1 38.6 ****** DAYS WITH PRECIPITATION >=10 1 0 2 **** **** **** **** 0 0 0 0 0 **** DAYS WITH PRECIPITATION >= 5 2 0 4 **** **** **** **** 0 0 1 0 4 **** DAYS WITH PRECIPITATION >= 1 8 6 8 **** **** **** **** 0 0 1 0 8 **** DAYS WITH PRECIPITATION 12 9 13 **** **** **** **** 1 0 1 3 12 **** GREATEST DAILY PRECIPITATION 10.0 3.0 14.0 ****** ****** ****** ****** 0.0 0.0 5.0 0.6 8.0 ****** DAY 22 11 10 ** **