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 ** ** ** ** ** ** 8 18 5 DAY WITH THUNDER STORM 0 0 1 **** **** **** **** 0 0 0 0 0 **** DAYS WITH SNOW OR SLEET 6 2 5 **** **** **** **** 0 0 0 0 3 **** DAYS WITH DUST 0 0 0 **** **** **** **** 3 1 3 0 0 **** WIND DIRECTION (PREVAILING) 315 315 135 *** *** *** *** 135 135 315 315 315 *** PREVAILING WIND SPEED(KNOTS) 10.4 15.2 5.7 **** **** **** **** 8.4 8.8 17.7 15.9 8.4 **** PREVAILING WIND PERCENT 32.9 33.8 21.3 ***** ***** ***** ***** 28.0 26.0 18.7 22.8 20.0 ***** CALMS PERCENT OF WIND 37.4 43.4 32.3 ***** ***** ***** ***** 24.7 38.7 30.3 48.3 45.5 ***** NO. OF WIND OBSERVATION 155 145 155 **** **** **** **** 150 150 155 149 145 1204 VECTOR WIND DIRECTION (MEAN) 310 305 316 *** *** *** *** 83 96 343 316 343 *** VECTOR WIND MAGNITUDE(KNOTS) 3.5 5.3 1.7 **** **** **** **** 1.8 1.5 3.3 4.0 0.8 **** WIND STEADINESES (MEAN %) 64.8 77.9 27.9 ***** ***** ***** ***** 24.7 25.4 40.2 66.7 20.5 ***** WIND SPEED (MEAN KNOTS) 5.4 6.8 6.1 **** **** **** **** 7.3 5.9 8.2 6.0 3.9 **** FASTEST WIND DIRECTION 300 300 310 *** *** *** *** 350 310 310 310 310 *** FASTEST WIND SPEED (KNOTS) 43 54 51 *** *** *** *** 43 35 54 47 23 *** DAY 22 11 25 ** ** ** ** 30 19 29 26 2 DAYS WITH SKY CLEAR (0-2)/8 8 12 8 **** **** **** **** 24 28 24 15 6 **** DAYS WITH P.CLOUDY (3-6)/8 14 10 10 **** **** **** **** 6 2 4 14 11 **** DAYS WITH CLOUDY (7-8)/8 9 7 13 **** **** **** **** 0 0 3 1 12 **** DAYS WITH VISIBILITY =< 2 KM 4 4 2 **** **** **** **** 0 0 0 1 6 **** DURATION OF SUNSHINE HOURS 115.6 160.2 133.9 ****** ****** ****** ****** 300.4 257.9 234.1 191.3 86.8 ****** ======================================================================================================================= 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 MEAN QFE PRESSURE IN HPA 886.0 882.9 885.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 898.3 891.4 893.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 10- 6 16-15 12- 6 **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFE PRESSURE IN HPA 874.5 874.0 872.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 3- 3 11-12 31- 9 **-** **-** **-** **-** **-** **-** **-** **-** **-** MEAN QNH PRESSURE IN HPA 1019.9 1016.5 1019.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1033.8 1026.1 1028.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 10- 6 16-15 12- 6 **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QNH PRESSURE IN HPA 1007.1 1006.5 1004.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR 3- 3 11-12 31- 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 886.0 883.1 885.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 897.4 889.7 892.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 16 12 ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 874.5 875.4 873.1 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 3 25 31 ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1020.0 1016.7 1019.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1032.8 1024.2 1027.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 16 12 ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1007.1 1008.1 1005.5 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 3 25 31 ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1024.8 1019.6 1021.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1041.1 1029.8 1035.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 16 12 ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1009.1 1004.3 1002.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 3 25 31 ** ** ** ** ** ** ** ** ** ======================================================================================================================= 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 PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 886.8 883.8 886.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 898.3 890.6 893.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 16 12 ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 876.5 876.9 873.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 3 11 31 ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1020.9 1017.6 1020.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1033.8 1025.2 1028.6 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 16 12 ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1009.4 1009.8 1005.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 3 11 31 ** ** ** ** ** ** ** ** ** 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 885.5 882.8 885.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 896.3 890.9 893.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 16 12 ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 877.2 875.0 872.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 1 11 31 ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1019.5 1016.4 1019.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1031.5 1025.5 1028.1 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 16 12 ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1010.1 1007.7 1004.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 1 11 31 ** ** ** ** ** ** ** ** ** 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 885.4 882.1 884.5 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 895.3 890.7 893.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 16 12 ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 878.3 874.0 872.8 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 17 11 31 ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1019.3 1015.6 1018.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1030.4 1025.3 1027.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 16 12 ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1011.4 1006.5 1005.2 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 17 11 31 ** ** ** ** ** ** ** ** ** 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 PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 886.2 882.7 885.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA 896.4 891.4 893.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 16 12 ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA 879.1 875.7 874.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 17 25 31 ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA 1020.2 1016.3 1018.9 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA 1031.7 1026.1 1028.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 16 12 ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA 1012.3 1008.5 1007.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 17 25 31 ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA 1025.0 1019.2 1021.3 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA 1039.6 1031.8 1035.7 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 10 16 12 ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA 1014.6 1004.5 1006.0 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY 3 25 31 ** ** ** ** ** ** ** ** ** 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 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.7 2.4 7.0 ***** ***** ***** ***** ***** ***** ***** 6.1 4.6 ***** MINIMUN AIR TEMPERATURE (C) -4.4 -2.0 0.1 ***** ***** ***** ***** ***** ***** ***** -0.4 -1.3 ***** DAYS WITH MINIMUM TEMP. >=21 0 0 0 **** **** **** **** **** **** **** 0 0 **** DAYS WITH MINIMUM TEMP. <=-4 18 6 6 **** **** **** **** **** **** **** 6 5 **** DAYS WITH FREEZING MIN.<= 0 28 23 17 **** **** **** **** **** **** **** 17 24 **** TEMPERATURE RECORDS LOWEST(C) -11.2 -10.2 -5.6 ***** ***** ***** ***** ***** ***** ***** -6.8 -9.0 ***** DAY 20 17 15 ** ** ** ** ** ** ** 18 7 MAXIMUM AIR TEMPERATURE (C) 4.8 6.0 11.3 ***** ***** ***** ***** ***** ***** ***** 10.5 8.8 ***** DAYS WITH MAXIMUM TEMP. >=30 0 0 0 **** **** **** **** **** **** **** 0 0 **** DAYS WITH MAXIMUM TEMP. <= 0 2 3 1 **** **** **** **** **** **** **** 1 1 **** TEMPERATURE RECORDS HIGHEST(C) 16.0 14.0 21.4 ***** ***** ***** ***** ***** ***** ***** 20.6 18.0 ***** DAY 28 28 8 ** ** ** ** ** ** ** 10 23 DIF. BETWEEN (MAX.-MIN.) (C) 9.2 8.0 11.2 ***** ***** ***** ***** ***** ***** ***** 10.9 10.1 ***** MEAN DAILY TEMP. (MDT) (C) 0.2 2.0 5.7 ***** ***** ***** ***** ***** ***** ***** 5.1 3.7 ***** COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 ****** ****** ****** ****** ****** ****** ****** 0.0 0.0 ****** HEATING DEG. DAYS(BASE 18 0C) 532.1 448.3 381.2 ****** ****** ****** ****** ****** ****** ****** 387.9 442.0 ****** DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** -2.3 -4.1 ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 3.79 3.23 ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 5.39 4.59 ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 4.68 4.39 ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** *** *** 59 57 *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** *** *** *** *** *** *** 78 74 *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** *** *** *** *** *** *** 44 41 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** *** *** 77 70 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** *** *** *** *** *** *** 51 50 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** *** *** 56 61 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 3.1 44.4 39.0 ****** ****** ****** ****** ****** ****** ****** 12.3 9.5 ****** DAYS WITH PRECIPITATION >=10 0 2 0 **** **** **** **** **** **** **** 0 0 **** DAYS WITH PRECIPITATION >= 5 0 4 2 **** **** **** **** **** **** **** 1 1 **** DAYS WITH PRECIPITATION >= 1 1 6 9 **** **** **** **** **** **** **** 2 1 **** DAYS WITH PRECIPITATION 5 11 12 **** **** **** **** **** **** **** 9 7 **** GREATEST DAILY PRECIPITATION 1.3 15.5 8.0 ****** ****** ****** ****** ****** ****** ****** 9.0 9.2 ****** DAY 9 4 2 ** ** ** ** ** ** ** 29 6 DAY WITH THUNDER STORM 0 0 0 **** **** **** **** **** **** **** 0 0 **** DAYS WITH SNOW OR SLEET 4 5 1 **** **** **** **** **** **** **** 1 1 **** DAYS WITH DUST 0 0 0 **** **** **** **** **** **** **** 2 1 **** WIND DIRECTION (PREVAILING) 315 315 315 *** *** *** *** *** *** *** 315 270 *** PREVAILING WIND SPEED(KNOTS) 9.6 7.5 14.2 **** **** **** **** **** **** **** 14.2 10.1 **** PREVAILING WIND PERCENT 47.1 23.6 33.5 ***** ***** ***** ***** ***** ***** ***** 19.3 18.7 ***** CALMS PERCENT OF WIND 38.7 57.9 48.4 ***** ***** ***** ***** ***** ***** ***** 40.0 59.4 ***** NO. OF WIND OBSERVATION 155 140 155 **** **** **** **** **** **** **** 150 155 755 VECTOR WIND DIRECTION (MEAN) 315 342 310 *** *** *** *** *** *** *** 305 295 *** VECTOR WIND MAGNITUDE(KNOTS) 4.4 0.7 3.9 **** **** **** **** **** **** **** 3.6 3.5 **** WIND STEADINESES (MEAN %) 78.6 21.2 66.1 ***** ***** ***** ***** ***** ***** ***** 56.2 85.4 ***** WIND SPEED (MEAN KNOTS) 5.6 3.3 5.9 **** **** **** **** **** **** **** 6.4 4.1 **** FASTEST WIND DIRECTION 310 130 300 *** *** *** *** *** *** *** 300 270 *** FASTEST WIND SPEED (KNOTS) 21 21 31 *** *** *** *** *** *** *** 31 27 *** DAY 15 16 23 ** ** ** ** ** ** ** 14 20 DAYS WITH SKY CLEAR (0-2)/8 17 7 11 **** **** **** **** **** **** **** 7 10 **** DAYS WITH P.CLOUDY (3-6)/8 6 8 9 **** **** **** **** **** **** **** 13 12 **** DAYS WITH CLOUDY (7-8)/8 8 13 11 **** **** **** **** **** **** **** 10 9 **** DAYS WITH VISIBILITY =< 2 KM 5 4 0 **** **** **** **** **** **** **** 3 8 **** DURATION OF SUNSHINE HOURS ****** 94.5 132.4 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= 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 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 889.6 890.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 897.2 896.7 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 21- 6 27- 6 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 872.5 881.6 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 14- 3 5- 3 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.1 1024.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1032.6 1032.0 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 21- 6 27- 6 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1004.9 1015.1 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 14- 3 5- 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 889.3 890.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 896.8 896.5 ****** DAY ** ** ** ** ** ** ** ** ** ** 26 27 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 872.5 881.6 ****** DAY ** ** ** ** ** ** ** ** ** ** 14 5 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1023.7 1025.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1032.1 1031.8 ****** DAY ** ** ** ** ** ** ** ** ** ** 26 27 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1004.9 1015.1 ****** DAY ** ** ** ** ** ** ** ** ** ** 14 5 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.7 1028.1 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1037.2 1037.5 ****** DAY ** ** ** ** ** ** ** ** ** ** 26 7 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1005.2 1019.2 ****** DAY ** ** ** ** ** ** ** ** ** ** 14 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 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 890.7 891.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 897.2 896.7 ****** DAY ** ** ** ** ** ** ** ** ** ** 21 27 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 878.2 883.0 ****** DAY ** ** ** ** ** ** ** ** ** ** 14 5 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1025.2 1026.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1032.6 1032.0 ****** DAY ** ** ** ** ** ** ** ** ** ** 21 27 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1011.3 1016.6 ****** DAY ** ** ** ** ** ** ** ** ** ** 14 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 889.3 889.8 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 895.7 894.4 ****** DAY ** ** ** ** ** ** ** ** ** ** 26 20 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 874.1 881.9 ****** DAY ** ** ** ** ** ** ** ** ** ** 14 5 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1023.7 1024.3 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1030.9 1029.4 ****** DAY ** ** ** ** ** ** ** ** ** ** 26 20 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1006.7 1015.4 ****** DAY ** ** ** ** ** ** ** ** ** ** 14 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 888.9 889.5 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 896.0 894.8 ****** DAY ** ** ** ** ** ** ** ** ** ** 21 20 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 877.7 882.1 ****** DAY ** ** ** ** ** ** ** ** ** ** 14 5 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1023.3 1023.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1031.2 1029.9 ****** DAY ** ** ** ** ** ** ** ** ** ** 21 20 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1010.7 1015.6 ****** DAY ** ** ** ** ** ** ** ** ** ** 14 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 1993 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 890.0 890.3 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 896.8 895.8 ****** DAY ** ** ** ** ** ** ** ** ** ** 25 20 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 881.4 882.9 ****** DAY ** ** ** ** ** ** ** ** ** ** 14 5 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1024.5 1024.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1032.1 1031.0 ****** DAY ** ** ** ** ** ** ** ** ** ** 25 20 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1014.8 1016.5 ****** DAY ** ** ** ** ** ** ** ** ** ** 14 5 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1026.7 1027.8 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1038.1 1035.5 ****** DAY ** ** ** ** ** ** ** ** ** ** 30 6 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 1012.9 1019.4 ****** DAY ** ** ** ** ** ** ** ** ** ** 11 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 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.2 1.5 9.6 14.4 21.8 26.3 28.0 28.2 19.4 13.4 12.0 2.7 15.0 MINIMUN AIR TEMPERATURE (C) -2.8 -4.0 2.6 5.4 10.1 14.5 16.1 15.6 5.3 5.0 4.4 -3.0 5.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH MINIMUM TEMP. <=-4 11 14 0 0 0 0 0 0 0 0 0 14 39 DAYS WITH FREEZING MIN.<= 0 28 25 4 5 0 0 0 0 0 1 3 23 89 TEMPERATURE RECORDS LOWEST(C) -8.0 -11.6 -2.8 -3.2 6.6 10.6 11.6 10.8 1.0 0.0 -0.4 -15.4 -15.4 DAY 22 5 2 6 9 7 21 11 8 27 16 8 MAXIMUM AIR TEMPERATURE (C) 7.6 5.9 14.6 19.1 26.3 30.7 32.3 32.6 24.3 18.8 17.1 7.2 19.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 3 21 26 28 0 0 0 0 80 DAYS WITH MAXIMUM TEMP. <= 0 0 5 0 0 0 0 0 0 0 0 0 3 8 TEMPERATURE RECORDS HIGHEST(C) 14.6 16.2 22.8 30.4 31.2 36.2 35.4 35.8 29.8 26.2 23.8 18.0 36.2 DAY 31 1 22 25 29 17 26 2 1 19 5 20 DIF. BETWEEN (MAX.-MIN.) (C) 10.4 9.9 12.0 13.7 16.2 16.2 16.2 17.0 19.0 13.8 12.7 10.2 13.9 MEAN DAILY TEMP. (MDT) (C) 2.4 0.9 8.6 12.2 18.2 22.6 24.2 24.1 14.8 11.9 10.8 2.1 12.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 1.6 2.3 52.1 99.5 95.8 0.0 0.0 0.0 0.0 251.3 HEATING DEG. DAYS(BASE 18 0C) 484.5 477.5 290.9 186.9 24.3 0.0 0.0 0.0 98.5 189.4 217.5 492.4 2461.8 DEWPOINT (MEAN C) -5.1 -6.9 0.1 3.8 6.2 8.1 10.8 9.3 -0.8 3.5 3.3 -4.5 2.3 MIXING RATIO (G/KG) 3.09 2.72 4.54 6.02 6.89 7.84 9.36 8.78 4.20 5.76 5.64 3.33 5.68 VAPOUR PRESSURE (HPA) 4.38 3.85 6.42 8.48 9.68 10.96 13.06 12.26 5.96 8.17 7.97 4.72 7.99 SATURATION DEF. (HPA) 3.66 3.42 6.19 9.44 17.41 24.13 25.57 26.90 17.33 8.13 6.68 3.25 12.68 RELATIVE HUMIDITY (MEAN %) 59 59 57 53 40 34 35 33 28 57 60 63 48 RELATIVE HUMIDITY (MAX. %) 75 79 79 79 61 50 50 48 43 83 83 83 68 RELATIVE HUMIDITY (MIN. %) 45 41 40 37 27 24 28 24 19 41 42 45 34 RELATIVE HUMIDITY (MEAN% 03UTC) 70 75 78 78 61 50 50 48 42 81 81 79 66 RELATIVE HUMIDITY (MEAN% 09UTC) 49 46 46 43 30 27 29 26 21 44 47 50 38 RELATIVE HUMIDITY (MEAN% 15UTC) 61 62 57 51 38 31 33 31 25 59 63 70 48 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 9.3 15.9 50.9 29.0 12.3 0.0 0.0 0.0 0.0 31.1 8.4 17.0 173.9 DAYS WITH PRECIPITATION >=10 0 0 2 1 0 0 0 0 0 2 0 0 5 DAYS WITH PRECIPITATION >= 5 0 1 3 2 1 0 0 0 0 3 0 1 11 DAYS WITH PRECIPITATION >= 1 3 4 6 5 4 0 0 0 0 4 3 3 32 DAYS WITH PRECIPITATION 9 15 13 12 6 1 0 0 0 6 6 6 74 GREATEST DAILY PRECIPITATION 4.1 7.0 21.2 12.0 6.2 0.0 0.0 0.0 0.0 11.4 3.0 9.0 21.2 DAY 25 4 28 19 7 ** ** ** ** 3 18 4 DAY WITH THUNDER STORM 0 0 0 2 5 1 0 0 0 0 0 0 8 DAYS WITH SNOW OR SLEET 3 9 2 1 0 0 0 0 0 0 0 4 19 DAYS WITH DUST 4 1 2 0 1 0 0 0 0 0 0 0 8 WIND DIRECTION (PREVAILING) 270 315 90 90 90 90 90 90 90 315 315 270 90 PREVAILING WIND SPEED(KNOTS) 14.5 10.3 7.5 6.9 7.8 9.2 8.5 7.1 6.1 6.7 10.8 7.6 7.5 PREVAILING WIND PERCENT 27.7 19.3 20.0 19.3 25.8 31.3 29.7 26.5 28.0 9.7 16.7 18.7 17.6 CALMS PERCENT OF WIND 41.9 45.7 36.8 44.7 47.1 34.0 27.1 26.5 35.3 63.9 55.3 51.6 42.5 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 290 303 300 331 58 92 99 99 92 330 295 294 12 VECTOR WIND MAGNITUDE(KNOTS) 6.9 1.6 1.7 1.0 1.6 4.1 4.0 3.6 2.6 0.6 2.2 2.2 0.6 WIND STEADINESES (MEAN %) 93.2 34.0 24.3 16.7 34.8 62.1 62.5 62.1 63.4 26.1 57.9 66.7 11.5 WIND SPEED (MEAN KNOTS) 7.4 4.7 7.0 6.0 4.6 6.6 6.4 5.8 4.1 2.3 3.8 3.3 5.2 FASTEST WIND DIRECTION 290 270 120 290 300 310 300 290 120 280 300 280 290 FASTEST WIND SPEED (KNOTS) 33 23 33 74 29 35 19 16 14 12 19 19 74 DAY 18 9 27 4 18 27 22 13 5 9 24 21 DAYS WITH SKY CLEAR (0-2)/8 10 7 9 8 18 25 31 31 29 17 9 13 207 DAYS WITH P.CLOUDY (3-6)/8 12 5 10 18 11 5 0 0 1 7 15 13 97 DAYS WITH CLOUDY (7-8)/8 9 16 12 4 2 0 0 0 0 7 6 5 61 DAYS WITH VISIBILITY =< 2 KM 2 1 1 0 0 0 0 0 0 2 2 5 13 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= 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 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 887.4 885.8 886.1 886.8 884.9 881.2 880.7 882.4 889.8 890.9 886.9 888.9 886.0 MAX. QFE PRESSURE IN HPA 899.1 898.2 895.2 899.0 891.6 886.4 884.7 887.2 897.1 897.8 893.8 898.0 899.1 DAY-HOUR 10- 6 18- 6 1- 6 5- 6 19- 3 9- 3 2- 3 8- 3 23- 6 23- 6 2- 6 8- 6 MIN. QFE PRESSURE IN HPA 877.1 873.0 875.8 874.5 876.0 875.2 876.3 876.2 883.1 882.6 873.9 872.8 872.8 DAY-HOUR 17- 3 1-12 15- 9 2-12 1-15 22-12 21-15 2-12 1-12 14-12 26- 9 4- 9 MEAN QNH PRESSURE IN HPA 1021.6 1019.8 1020.1 1020.9 1018.7 1014.6 1014.1 1016.0 1024.2 1025.5 1021.1 1023.2 1020.0 MAX. QNH PRESSURE IN HPA 1034.7 1033.7 1030.3 1034.6 1026.3 1020.5 1018.5 1021.4 1032.5 1033.2 1028.8 1033.5 1034.7 DAY-HOUR 10- 6 18- 6 1- 6 5- 6 19- 3 9- 3 2- 3 8- 3 23- 6 23- 6 2- 6 8- 6 MIN. QNH PRESSURE IN HPA 1010.0 1005.4 1008.6 1007.1 1008.8 1007.9 1009.1 1009.0 1016.8 1016.2 1006.4 1005.2 1005.2 DAY-HOUR 17- 3 1-12 15- 9 2-12 1-15 22-12 21-15 2-12 1-12 14-12 26- 9 4- 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 887.8 886.0 886.5 887.6 885.8 882.5 882.0 883.5 890.7 891.5 887.3 889.1 886.7 MAX. QFE PRESSURE IN HPA 899.0 897.3 893.0 896.3 891.6 886.4 884.7 887.2 896.8 897.3 893.4 897.0 899.0 DAY 18 18 1 5 19 9 2 8 23 23 7 8 MIN. QFE PRESSURE IN HPA 877.1 877.0 877.6 878.1 878.9 878.9 879.0 878.5 885.8 885.2 874.3 874.1 874.1 DAY 17 9 13 2 1 16 21 2 1 15 26 4 MEAN QNH PRESSURE IN HPA 1022.0 1020.0 1020.5 1021.8 1019.8 1016.1 1015.5 1017.2 1025.3 1026.2 1021.4 1023.5 1020.8 MAX. QNH PRESSURE IN HPA 1034.6 1032.7 1027.9 1031.5 1026.3 1020.5 1018.5 1021.4 1032.1 1032.7 1028.3 1032.3 1034.6 DAY 18 18 1 5 19 9 2 8 23 23 7 8 MIN. QNH PRESSURE IN HPA 1010.0 1009.9 1010.6 1011.1 1012.0 1012.0 1012.2 1011.6 1019.8 1019.1 1006.9 1006.7 1006.7 DAY 17 9 13 2 1 16 21 2 1 15 26 4 MEAN QFF PRESSURE IN HPA 1025.7 1024.4 1020.7 1019.5 1014.0 1007.9 1006.6 1008.3 1021.1 1024.9 1020.7 1027.5 1018.5 MAX. QFF PRESSURE IN HPA 1039.3 1038.9 1029.2 1035.9 1023.1 1012.8 1010.7 1013.6 1028.0 1030.9 1027.9 1043.4 1043.4 DAY 10 18 1 5 19 9 2 8 23 24 3 8 MIN. QFF PRESSURE IN HPA 1012.0 1011.5 1011.2 1008.7 1006.9 1002.6 1003.0 1001.0 1012.5 1016.5 1007.1 1005.3 1001.0 DAY 17 9 8 2 6 16 8 3 1 15 26 4 ======================================================================================================================= 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 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 888.5 886.7 887.3 888.0 885.9 882.5 881.8 883.6 890.9 892.1 888.1 889.9 887.1 MAX. QFE PRESSURE IN HPA 899.1 898.2 895.2 899.0 891.5 886.4 884.6 886.9 897.1 897.8 893.8 898.0 899.1 DAY 10 18 1 5 19 9 2 22 23 23 2 8 MIN. QFE PRESSURE IN HPA 878.6 877.2 878.8 877.9 878.4 879.1 879.0 878.1 885.4 885.8 874.7 873.9 873.9 DAY 17 12 15 2 1 22 8 2 1 15 26 4 MEAN QNH PRESSURE IN HPA 1022.8 1020.8 1021.4 1022.2 1019.9 1016.0 1015.3 1017.3 1025.5 1026.9 1022.4 1024.4 1021.2 MAX. QNH PRESSURE IN HPA 1034.7 1033.7 1030.3 1034.6 1026.2 1020.5 1018.4 1021.0 1032.5 1033.2 1028.8 1033.5 1034.7 DAY 10 18 1 5 19 9 2 22 23 23 2 8 MIN. QNH PRESSURE IN HPA 1011.7 1010.1 1011.9 1010.9 1011.5 1012.3 1012.2 1011.1 1019.3 1019.8 1007.3 1006.4 1006.4 DAY 17 12 15 2 1 22 8 2 1 15 26 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 887.0 885.5 886.0 886.9 884.8 881.3 880.8 882.4 889.6 890.8 886.7 888.4 885.8 MAX. QFE PRESSURE IN HPA 896.8 897.0 893.8 898.6 890.5 885.3 883.6 885.9 895.9 896.4 893.8 896.2 898.6 DAY 10 18 1 5 20 9 11 22 23 23 2 8 MIN. QFE PRESSURE IN HPA 878.5 875.2 875.8 875.9 877.3 877.4 878.0 877.2 884.3 884.6 873.9 872.8 872.8 DAY 26 1 15 2 1 22 20 2 1 14 26 4 MEAN QNH PRESSURE IN HPA 1021.1 1019.4 1020.0 1021.0 1018.7 1014.7 1014.1 1015.9 1024.0 1025.3 1020.8 1022.7 1019.8 MAX. QNH PRESSURE IN HPA 1032.1 1032.3 1028.8 1034.1 1025.1 1019.2 1017.3 1019.9 1031.1 1031.7 1028.8 1031.4 1034.1 DAY 10 18 1 5 20 9 11 22 23 23 2 8 MIN. QNH PRESSURE IN HPA 1011.6 1007.9 1008.6 1008.7 1010.3 1010.4 1011.0 1010.1 1018.1 1018.4 1006.4 1005.2 1005.2 DAY 26 1 15 2 1 22 20 2 1 14 26 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 886.7 885.1 885.0 885.8 883.8 880.0 879.6 881.2 888.6 889.9 885.9 888.0 885.0 MAX. QFE PRESSURE IN HPA 895.7 895.8 892.2 897.4 889.5 883.9 883.0 884.5 895.0 895.9 892.0 895.4 897.4 DAY 9 18 1 5 20 8 2 22 23 23 2 8 MIN. QFE PRESSURE IN HPA 877.8 873.0 876.3 874.5 876.3 875.2 877.0 876.2 883.1 882.6 875.2 874.1 873.0 DAY 25 1 12 2 1 22 20 2 1 14 26 4 MEAN QNH PRESSURE IN HPA 1020.8 1019.0 1018.9 1019.8 1017.5 1013.3 1012.8 1014.6 1022.9 1024.3 1019.9 1022.3 1018.8 MAX. QNH PRESSURE IN HPA 1030.9 1031.0 1027.0 1032.8 1023.9 1017.7 1016.6 1018.3 1030.1 1031.1 1026.7 1030.5 1032.8 DAY 9 18 1 5 20 8 2 22 23 23 2 8 MIN. QNH PRESSURE IN HPA 1010.8 1005.4 1009.1 1007.1 1009.1 1007.9 1009.9 1009.0 1016.8 1016.2 1007.9 1006.7 1005.4 DAY 25 1 12 2 1 22 20 2 1 14 26 4 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION 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 1994 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 887.4 885.8 885.7 886.1 884.0 879.8 879.5 881.5 889.1 890.4 886.8 888.9 885.4 MAX. QFE PRESSURE IN HPA 896.2 896.4 891.6 897.5 889.8 884.7 883.1 885.1 895.9 895.4 892.0 895.8 897.5 DAY 9 18 1 5 19 8 2 22 23 23 2 7 MIN. QFE PRESSURE IN HPA 877.2 873.0 876.7 875.0 876.0 875.3 876.3 876.9 884.1 883.0 879.0 874.8 873.0 DAY 16 1 12 2 1 5 21 1 1 14 26 4 MEAN QNH PRESSURE IN HPA 1021.5 1019.8 1019.7 1020.1 1017.7 1013.1 1012.7 1015.0 1023.5 1025.0 1020.9 1023.3 1019.4 MAX. QNH PRESSURE IN HPA 1031.4 1031.7 1026.3 1032.9 1024.3 1018.5 1016.8 1019.0 1031.1 1030.5 1026.7 1031.0 1032.9 DAY 9 18 1 5 19 8 2 22 23 23 2 7 MIN. QNH PRESSURE IN HPA 1010.1 1005.4 1009.6 1007.7 1008.8 1008.0 1009.1 1009.8 1017.9 1016.6 1012.2 1007.4 1005.4 DAY 16 1 12 2 1 5 21 1 1 14 26 4 MEAN QFF PRESSURE IN HPA 1025.1 1024.2 1019.8 1017.8 1011.8 1004.9 1003.8 1006.1 1019.4 1023.7 1020.2 1027.3 1017.0 MAX. QFF PRESSURE IN HPA 1036.6 1038.5 1030.2 1036.5 1021.0 1011.2 1008.9 1010.3 1027.1 1030.7 1026.5 1040.5 1040.5 DAY 9 18 1 5 19 8 2 22 23 24 19 8 MIN. QFF PRESSURE IN HPA 1013.4 1004.9 1009.0 1005.1 1004.9 999.1 999.7 998.4 1011.0 1015.2 1012.5 1006.6 998.4 DAY 5 1 12 2 1 17 7 1 2 15 26 4 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 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.6 4.2 8.4 15.2 20.5 25.0 29.3 27.8 20.8 14.2 11.9 2.9 15.4 MINIMUN AIR TEMPERATURE (C) -2.1 -1.5 0.7 7.3 9.7 13.8 18.4 14.9 9.1 4.1 3.1 -2.2 6.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 6 0 0 0 0 0 6 DAYS WITH MINIMUM TEMP. <=-4 6 7 4 0 0 0 0 0 0 3 2 11 33 DAYS WITH FREEZING MIN.<= 0 25 19 9 0 0 0 0 0 0 8 7 23 91 TEMPERATURE RECORDS LOWEST(C) -6.8 -9.0 -6.0 1.6 4.0 7.4 13.2 7.4 3.6 -7.8 -6.0 -6.0 -9.0 DAY 10 20 7 8 27 1 21 26 23 19 28 12 MAXIMUM AIR TEMPERATURE (C) 9.9 9.0 13.2 20.2 25.4 30.3 34.3 33.5 26.8 20.3 18.1 6.8 20.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 17 30 29 6 1 0 0 85 DAYS WITH MAXIMUM TEMP. <= 0 1 1 0 0 0 0 0 0 0 0 0 2 4 TEMPERATURE RECORDS HIGHEST(C) 17.6 16.4 23.6 28.8 33.4 39.0 39.4 38.2 32.6 31.4 27.0 13.8 39.4 DAY 17 4 26 4 7 30 16 23 19 4 9 31 DIF. BETWEEN (MAX.-MIN.) (C) 12.0 10.5 12.5 12.9 15.7 16.5 15.9 18.6 17.7 16.2 15.0 9.0 14.3 MEAN DAILY TEMP. (MDT) (C) 3.9 3.7 7.0 13.7 17.5 22.0 26.3 24.2 18.0 12.2 10.6 2.3 13.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 5.8 47.1 165.6 101.6 3.8 0.0 0.0 0.0 323.9 HEATING DEG. DAYS(BASE 18 0C) 436.8 399.7 342.4 129.9 41.3 1.5 0.0 0.0 35.5 184.7 222.5 487.4 2281.6 DEWPOINT (MEAN C) -3.9 -3.0 -1.7 3.9 3.6 7.1 10.3 8.9 5.3 2.4 -0.7 -3.9 2.4 MIXING RATIO (G/KG) 3.29 3.58 4.07 5.90 5.91 7.35 9.15 8.38 6.58 5.49 4.31 3.31 5.61 VAPOUR PRESSURE (HPA) 4.67 5.07 5.76 8.31 8.32 10.30 12.75 11.73 9.25 7.78 6.11 4.72 7.90 SATURATION DEF. (HPA) 4.32 3.70 5.84 9.89 16.76 22.59 29.38 27.48 17.02 9.91 9.37 3.15 13.28 RELATIVE HUMIDITY (MEAN %) 59 64 55 51 36 35 33 33 41 50 47 65 47 RELATIVE HUMIDITY (MAX. %) 80 87 80 74 56 54 53 57 67 78 66 82 70 RELATIVE HUMIDITY (MIN. %) 40 46 37 34 25 25 23 22 27 33 32 50 33 RELATIVE HUMIDITY (MEAN% 03UTC) 79 85 78 70 53 53 53 57 67 78 65 79 68 RELATIVE HUMIDITY (MEAN% 09UTC) 46 53 44 39 29 28 26 26 32 40 39 57 38 RELATIVE HUMIDITY (MEAN% 15UTC) 60 63 54 54 36 34 28 27 37 46 44 68 46 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 7.9 44.8 42.1 22.6 19.0 18.1 1.0 0.0 12.0 2.8 5.1 6.1 181.5 DAYS WITH PRECIPITATION >=10 0 2 2 0 1 1 0 0 1 0 0 0 7 DAYS WITH PRECIPITATION >= 5 0 4 3 0 2 1 0 0 1 0 0 0 11 DAYS WITH PRECIPITATION >= 1 2 8 7 9 3 2 1 0 1 1 2 2 38 DAYS WITH PRECIPITATION 5 12 10 13 3 3 1 0 1 2 3 6 59 GREATEST DAILY PRECIPITATION 4.0 10.0 16.0 4.0 12.0 15.0 1.0 0.0 12.0 2.0 3.0 3.2 16.0 DAY 18 7 28 21 5 9 2 ** 22 17 26 18 DAY WITH THUNDER STORM 0 0 0 0 0 2 0 0 0 0 0 0 2 DAYS WITH SNOW OR SLEET 2 4 0 0 0 0 0 0 0 0 1 4 11 DAYS WITH DUST 0 0 1 0 0 1 1 2 2 1 0 1 9 WIND DIRECTION (PREVAILING) 270 90 315 315 90 90 90 90 90 90 270 315 90 PREVAILING WIND SPEED(KNOTS) 9.3 5.5 11.0 8.3 8.2 7.7 8.0 7.3 7.3 5.5 11.9 14.2 6.9 PREVAILING WIND PERCENT 20.6 15.7 21.9 12.7 20.6 24.7 31.0 23.9 27.3 14.8 14.0 19.4 16.4 CALMS PERCENT OF WIND 55.5 51.4 45.2 56.0 34.2 42.0 29.0 40.0 46.0 49.0 60.0 58.1 47.1 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 290 299 293 284 58 30 94 91 67 356 295 297 340 VECTOR WIND MAGNITUDE(KNOTS) 3.0 1.9 2.4 1.3 1.8 1.4 3.5 2.5 2.0 0.3 2.5 3.4 0.8 WIND STEADINESES (MEAN %) 78.9 42.2 47.1 32.5 32.1 28.0 57.4 50.0 47.6 8.1 65.8 73.9 17.4 WIND SPEED (MEAN KNOTS) 3.8 4.5 5.1 4.0 5.6 5.0 6.1 5.0 4.2 3.7 3.8 4.6 4.6 FASTEST WIND DIRECTION 250 300 300 280 310 280 300 280 310 300 280 300 300 FASTEST WIND SPEED (KNOTS) 19 23 21 27 31 35 29 21 19 23 35 37 37 DAY 17 12 3 6 9 23 23 14 21 24 12 27 DAYS WITH SKY CLEAR (0-2)/8 15 10 14 5 16 18 27 31 21 23 22 12 214 DAYS WITH P.CLOUDY (3-6)/8 10 12 10 13 13 10 3 0 7 5 8 9 100 DAYS WITH CLOUDY (7-8)/8 6 6 7 12 2 2 1 0 2 3 0 10 51 DAYS WITH VISIBILITY =< 2 KM 2 6 1 0 0 2 0 0 1 0 1 9 22 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** 363.1 368.5 279.7 272.2 241.4 121.9 ****** ======================================================================================================================= 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 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 888.7 887.1 886.3 884.8 886.6 882.5 880.1 882.8 885.4 889.8 887.9 890.3 886.0 MAX. QFE PRESSURE IN HPA 899.2 894.2 894.5 891.1 892.4 888.9 884.2 890.4 892.0 901.6 898.0 898.1 901.6 DAY-HOUR 7- 6 17-15 3- 6 7- 3 26- 3 1- 6 4- 3 25- 6 13- 6 25- 6 16- 6 11- 6 MIN. QFE PRESSURE IN HPA 880.8 877.8 872.1 880.0 879.6 874.5 872.7 878.0 877.9 882.0 872.4 883.8 872.1 DAY-HOUR 1- 9 5-12 26-12 16- 3 7-12 30-12 1-12 3-12 28-12 4-12 26- 3 25-12 MEAN QNH PRESSURE IN HPA 1023.0 1021.3 1020.3 1018.6 1020.7 1016.1 1013.4 1016.5 1019.3 1024.3 1022.1 1024.8 1020.0 MAX. QNH PRESSURE IN HPA 1034.8 1029.2 1029.5 1025.7 1027.2 1023.3 1018.0 1024.9 1026.7 1037.5 1033.5 1033.6 1037.5 DAY-HOUR 7- 6 17-15 3- 6 7- 3 26- 3 1- 6 4- 3 25- 6 13- 6 25- 6 16- 6 11- 6 MIN. QNH PRESSURE IN HPA 1014.2 1010.8 1004.4 1013.3 1012.8 1007.1 1005.1 1011.0 1010.9 1015.5 1004.8 1017.5 1004.4 DAY-HOUR 1- 9 5-12 26-12 16- 3 7-12 30-12 1-12 3-12 28-12 4-12 26- 3 25-12 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 888.8 887.4 886.7 885.2 887.4 883.5 881.0 883.8 886.2 890.5 888.3 890.9 886.6 MAX. QFE PRESSURE IN HPA 897.8 893.0 893.1 891.1 892.4 888.7 884.2 889.9 891.8 901.4 897.5 897.5 901.4 DAY 7 18 3 7 26 1 4 25 13 18 16 11 MIN. QFE PRESSURE IN HPA 882.2 879.8 875.1 880.0 883.0 877.8 875.8 880.0 880.2 884.4 872.4 885.8 872.4 DAY 12 10 26 16 7 30 1 4 28 4 26 26 MEAN QNH PRESSURE IN HPA 1023.2 1021.6 1020.8 1019.2 1021.5 1017.2 1014.4 1017.5 1020.3 1025.1 1022.5 1025.4 1020.7 MAX. QNH PRESSURE IN HPA 1033.2 1027.9 1028.0 1025.7 1027.2 1023.0 1018.0 1024.4 1026.5 1037.3 1032.9 1032.9 1037.3 DAY 7 18 3 7 26 1 4 25 13 18 16 11 MIN. QNH PRESSURE IN HPA 1015.7 1013.1 1007.8 1013.3 1016.6 1010.8 1008.6 1013.3 1013.5 1018.2 1004.8 1019.8 1004.8 DAY 12 10 26 16 7 30 1 4 28 4 26 26 MEAN QFF PRESSURE IN HPA 1026.4 1024.6 1022.0 1016.6 1016.7 1010.2 1005.1 1009.3 1015.7 1023.9 1022.3 1029.2 1018.5 MAX. QFF PRESSURE IN HPA 1037.8 1033.1 1031.3 1027.0 1024.1 1018.4 1009.5 1017.9 1022.3 1041.5 1035.9 1039.3 1041.5 DAY 7 18 4 7 26 1 25 25 22 18 28 11 MIN. QFF PRESSURE IN HPA 1018.0 1012.6 1005.2 1009.7 1009.0 1001.6 999.0 1003.8 1008.2 1013.3 1005.2 1021.7 999.0 DAY 12 9 26 16 8 30 1 13 20 4 26 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 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 889.9 888.2 887.3 885.6 887.5 883.6 881.0 883.9 886.5 891.0 889.0 891.5 887.1 MAX. QFE PRESSURE IN HPA 899.2 893.6 894.5 890.7 892.4 888.9 884.0 890.4 892.0 901.6 898.0 898.1 901.6 DAY 7 12 3 7 26 1 4 25 13 25 16 11 MIN. QFE PRESSURE IN HPA 883.0 880.6 875.1 881.5 883.0 877.8 875.8 880.4 880.5 884.4 875.2 885.8 875.1 DAY 1 9 26 25 7 30 1 13 28 4 26 22 MEAN QNH PRESSURE IN HPA 1024.4 1022.4 1021.5 1019.5 1021.7 1017.3 1014.4 1017.7 1020.6 1025.6 1023.3 1026.1 1021.2 MAX. QNH PRESSURE IN HPA 1034.8 1028.5 1029.5 1025.3 1027.2 1023.3 1017.8 1024.9 1026.7 1037.5 1033.5 1033.6 1037.5 DAY 7 12 3 7 26 1 4 25 13 25 16 11 MIN. QNH PRESSURE IN HPA 1016.6 1013.9 1007.8 1015.0 1016.6 1010.8 1008.6 1013.7 1013.8 1018.2 1007.9 1019.8 1007.8 DAY 1 9 26 25 7 30 1 13 28 4 26 22 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 888.4 886.9 886.1 884.7 886.5 882.4 880.2 882.9 885.3 889.4 887.5 889.9 885.9 MAX. QFE PRESSURE IN HPA 897.9 892.6 893.5 890.2 892.1 887.8 883.3 888.8 891.5 900.3 895.2 896.1 900.3 DAY 7 12 3 13 26 1 8 25 22 25 16 11 MIN. QFE PRESSURE IN HPA 880.8 878.3 873.0 880.8 880.8 876.4 874.6 879.3 879.1 883.0 877.9 884.9 873.0 DAY 1 5 26 18 7 30 1 13 28 4 26 22 MEAN QNH PRESSURE IN HPA 1022.7 1021.1 1020.2 1018.6 1020.5 1016.0 1013.5 1016.6 1019.3 1023.8 1021.7 1024.4 1019.8 MAX. QNH PRESSURE IN HPA 1033.3 1027.4 1028.4 1024.7 1026.8 1022.0 1017.0 1023.1 1026.2 1036.0 1030.3 1031.3 1036.0 DAY 7 12 3 13 26 1 8 25 22 25 16 11 MIN. QNH PRESSURE IN HPA 1014.2 1011.4 1005.4 1014.2 1014.2 1009.2 1007.2 1012.5 1012.3 1016.6 1010.9 1018.8 1005.4 DAY 1 5 26 18 7 30 1 13 28 4 26 22 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 887.8 886.2 885.2 883.8 885.5 881.3 879.1 881.7 884.2 888.7 886.9 889.3 885.0 MAX. QFE PRESSURE IN HPA 897.6 892.2 893.0 888.8 891.3 886.5 881.8 887.0 890.5 899.3 894.9 896.0 899.3 DAY 7 17 3 7 26 2 28 25 22 25 15 10 MIN. QFE PRESSURE IN HPA 881.1 877.8 872.1 880.1 879.6 874.5 872.7 878.0 877.9 882.0 880.5 883.8 872.1 DAY 1 5 26 17 7 30 1 3 28 4 26 25 MEAN QNH PRESSURE IN HPA 1022.0 1020.2 1019.1 1017.6 1019.5 1014.7 1012.3 1015.2 1018.0 1023.0 1021.0 1023.7 1018.9 MAX. QNH PRESSURE IN HPA 1033.0 1027.0 1027.9 1023.1 1025.9 1020.6 1015.3 1021.1 1025.1 1034.9 1030.0 1031.2 1034.9 DAY 7 17 3 7 26 2 28 25 22 25 15 10 MIN. QNH PRESSURE IN HPA 1014.5 1010.8 1004.4 1013.4 1012.8 1007.1 1005.1 1011.0 1010.9 1015.5 1013.8 1017.5 1004.4 DAY 1 5 26 17 7 30 1 3 28 4 26 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 1995 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 888.6 886.9 886.2 884.5 886.1 881.8 879.5 881.9 884.6 889.5 887.8 890.0 885.6 MAX. QFE PRESSURE IN HPA 898.0 894.2 893.3 889.8 891.6 886.6 882.4 887.5 890.5 900.4 896.1 897.2 900.4 DAY 7 17 3 7 26 1 7 24 22 17 15 10 MIN. QFE PRESSURE IN HPA 881.4 878.0 875.0 880.1 880.2 874.8 873.0 878.2 878.4 882.4 880.8 884.8 873.0 DAY 1 5 26 17 7 30 1 3 28 4 11 25 MEAN QNH PRESSURE IN HPA 1022.9 1021.0 1020.2 1018.3 1020.1 1015.3 1012.7 1015.4 1018.5 1023.9 1022.1 1024.5 1019.6 MAX. QNH PRESSURE IN HPA 1033.5 1029.2 1028.2 1024.3 1026.3 1020.7 1016.0 1021.7 1025.1 1036.1 1031.3 1032.6 1036.1 DAY 7 17 3 7 26 1 7 24 22 17 15 10 MIN. QNH PRESSURE IN HPA 1014.8 1011.0 1007.7 1013.4 1013.5 1007.4 1005.4 1011.3 1011.5 1016.0 1014.2 1018.7 1005.4 DAY 1 5 26 17 7 30 1 3 28 4 11 25 MEAN QFF PRESSURE IN HPA 1026.1 1024.0 1021.2 1015.7 1015.1 1008.2 1003.4 1007.3 1013.9 1022.7 1021.9 1028.6 1017.3 MAX. QFF PRESSURE IN HPA 1038.6 1033.3 1031.5 1025.0 1023.4 1015.7 1007.3 1014.5 1023.9 1037.8 1033.8 1037.7 1038.6 DAY 7 17 5 7 26 1 25 25 22 17 28 10 MIN. QFF PRESSURE IN HPA 1016.4 1011.1 1006.6 1010.8 1005.8 998.3 996.0 1002.3 1005.4 1011.8 1011.8 1021.6 996.0 DAY 17 5 26 15 7 30 1 3 19 4 11 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 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.5 3.2 6.2 12.9 20.2 26.2 28.7 26.3 24.1 15.5 7.8 6.7 14.9 MINIMUN AIR TEMPERATURE (C) -4.5 -2.5 1.6 5.0 10.2 14.8 17.9 13.2 11.8 6.8 -0.8 -0.7 6.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 5 1 0 0 0 0 6 DAYS WITH MINIMUM TEMP. <=-4 17 9 1 0 0 0 0 0 0 0 5 7 39 DAYS WITH FREEZING MIN.<= 0 26 21 9 5 0 0 0 0 0 1 16 16 94 TEMPERATURE RECORDS LOWEST(C) -12.0 -14.2 -5.6 -3.4 1.4 8.2 14.2 2.4 4.4 -3.2 -5.4 -9.2 -14.2 DAY 14 5 1 6 3 17 18 31 1 3 19 8 MAXIMUM AIR TEMPERATURE (C) 6.1 7.4 9.9 18.0 24.5 30.3 32.8 31.7 30.1 21.2 13.1 12.0 19.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 3 16 28 23 15 0 0 0 85 DAYS WITH MAXIMUM TEMP. <= 0 5 4 1 0 0 0 0 0 0 0 0 0 10 TEMPERATURE RECORDS HIGHEST(C) 15.4 16.8 20.6 26.2 32.2 35.8 37.2 36.4 38.6 28.2 19.8 20.8 38.6 DAY 6 10 26 13 31 5 24 11 9 27 7 27 DIF. BETWEEN (MAX.-MIN.) (C) 10.6 9.9 8.3 13.0 14.3 15.5 14.9 18.5 18.3 14.4 13.9 12.7 13.7 MEAN DAILY TEMP. (MDT) (C) 0.8 2.5 5.7 11.5 17.4 22.5 25.3 22.5 21.0 14.0 6.1 5.7 12.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 6.8 57.3 134.6 73.2 32.0 0.0 0.0 0.0 303.9 HEATING DEG. DAYS(BASE 18 0C) 533.7 450.3 380.1 196.6 52.7 0.1 0.0 6.8 4.5 126.8 356.4 382.8 2490.7 DEWPOINT (MEAN C) -5.6 -4.0 1.0 2.9 4.2 5.5 6.0 1.3 4.7 -0.3 -4.0 -4.7 0.6 MIXING RATIO (G/KG) 3.01 3.36 4.82 5.67 6.33 6.86 6.79 5.11 6.40 4.62 3.33 3.22 4.96 VAPOUR PRESSURE (HPA) 4.27 4.76 6.79 7.99 8.92 9.62 9.53 7.20 9.00 6.54 4.74 4.57 7.00 SATURATION DEF. (HPA) 3.14 3.49 3.21 8.00 15.79 25.41 30.63 28.62 22.68 12.01 6.56 5.87 13.78 RELATIVE HUMIDITY (MEAN %) 63 64 72 55 40 30 25 22 33 41 47 48 45 RELATIVE HUMIDITY (MAX. %) 80 84 90 81 62 50 41 39 51 60 70 71 65 RELATIVE HUMIDITY (MIN. %) 46 45 56 37 26 20 17 14 21 27 33 32 31 RELATIVE HUMIDITY (MEAN% 03UTC) 79 81 89 80 60 50 41 39 49 58 68 68 64 RELATIVE HUMIDITY (MEAN% 09UTC) 51 55 67 46 30 24 20 16 25 33 36 37 37 RELATIVE HUMIDITY (MEAN% 15UTC) 62 61 70 50 38 27 22 21 31 40 44 47 43 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 8.5 25.2 80.7 39.4 24.9 2.0 0.0 0.0 11.0 14.9 20.8 2.7 230.1 DAYS WITH PRECIPITATION >=10 0 1 3 1 0 0 0 0 0 0 1 0 6 DAYS WITH PRECIPITATION >= 5 1 1 5 3 2 0 0 0 2 2 1 0 17 DAYS WITH PRECIPITATION >= 1 2 3 12 7 5 2 0 0 2 2 2 2 39 DAYS WITH PRECIPITATION 5 6 21 11 8 2 0 0 2 4 4 5 68 GREATEST DAILY PRECIPITATION 7.0 19.0 22.0 22.0 7.0 1.0 0.0 0.0 6.0 7.0 19.5 1.0 22.0 DAY 9 3 8 4 22 11 ** ** 24 17 12 2 DAY WITH THUNDER STORM 0 0 1 0 1 0 0 0 1 0 0 0 3 DAYS WITH SNOW OR SLEET 1 4 2 1 0 0 0 0 0 0 1 1 10 DAYS WITH DUST 0 0 0 1 0 1 1 1 2 3 0 0 9 WIND DIRECTION (PREVAILING) 315 270 90 90 90 90 315 90 90 315 315 315 90 PREVAILING WIND SPEED(KNOTS) 11.5 11.3 6.6 7.7 8.5 9.6 9.5 6.8 6.8 13.2 9.8 10.5 7.5 PREVAILING WIND PERCENT 21.3 16.6 18.1 19.3 27.1 26.8 20.6 32.9 22.0 19.4 13.3 15.5 15.9 CALMS PERCENT OF WIND 56.1 44.1 46.5 35.3 40.0 34.9 29.7 39.4 48.7 52.3 62.7 57.4 45.6 NO. OF WIND OBSERVATION 155 145 155 150 155 149 155 155 150 155 150 155 1829 VECTOR WIND DIRECTION (MEAN) 296 290 358 3 79 71 333 79 95 311 297 295 334 VECTOR WIND MAGNITUDE(KNOTS) 3.6 2.7 0.4 0.6 2.3 2.5 2.3 2.8 0.6 2.7 2.4 2.8 1.1 WIND STEADINESES (MEAN %) 80.0 49.1 8.3 9.1 45.1 36.2 39.0 58.3 12.0 47.4 64.9 68.3 21.2 WIND SPEED (MEAN KNOTS) 4.5 5.5 4.8 6.6 5.1 6.9 5.9 4.8 5.0 5.7 3.7 4.1 5.2 FASTEST WIND DIRECTION 280 270 310 290 160 290 300 290 270 290 290 270 270 FASTEST WIND SPEED (KNOTS) 23 49 29 31 35 45 39 35 27 49 27 23 49 DAY 9 29 14 30 21 2 13 14 18 31 12 15 DAYS WITH SKY CLEAR (0-2)/8 14 11 2 5 10 24 29 29 26 19 21 15 205 DAYS WITH P.CLOUDY (3-6)/8 11 5 11 14 12 6 2 2 2 11 7 11 94 DAYS WITH CLOUDY (7-8)/8 6 13 18 11 9 0 0 0 2 1 2 5 67 DAYS WITH VISIBILITY =< 2 KM 2 2 3 5 0 0 0 1 0 1 1 1 16 DURATION OF SUNSHINE HOURS 175.5 130.8 133.7 174.9 250.1 337.4 372.5 366.7 296.3 252.3 230.4 174.7 2895.3 ======================================================================================================================= 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 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 889.7 886.3 885.0 886.5 886.4 883.5 883.2 884.5 884.2 888.9 892.8 890.3 886.8 MAX. QFE PRESSURE IN HPA 901.0 893.8 890.9 895.0 892.6 889.7 890.8 894.4 893.6 900.6 903.1 899.5 903.1 DAY-HOUR 10- 6 27- 6 22- 6 5- 6 4- 6 12- 3 3- 6 30- 6 25- 6 2- 6 19- 6 8- 6 MIN. QFE PRESSURE IN HPA 882.0 874.0 875.2 876.5 881.2 876.2 878.2 876.9 875.7 877.7 885.2 882.0 874.0 DAY-HOUR 7- 3 5-15 26-12 10-12 29-15 6-12 6-12 8-15 9-12 27-12 28-15 15-12 MEAN QNH PRESSURE IN HPA 1024.1 1020.3 1018.9 1020.6 1020.5 1017.2 1016.8 1018.3 1017.9 1023.2 1027.6 1024.8 1020.9 MAX. QNH PRESSURE IN HPA 1036.8 1028.8 1025.5 1030.1 1027.4 1024.2 1025.4 1029.4 1028.5 1036.4 1039.2 1035.1 1039.2 DAY-HOUR 10- 6 27- 6 22- 6 5- 6 4- 6 12- 3 3- 6 30- 6 25- 6 2- 6 19- 6 8- 6 MIN. QNH PRESSURE IN HPA 1015.5 1006.5 1007.9 1009.4 1014.6 1009.0 1011.3 1009.8 1008.5 1010.7 1019.1 1015.5 1006.5 DAY-HOUR 7- 3 5-15 26-12 10-12 29-15 6-12 6-12 8-15 9-12 27-12 28-15 15-12 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 889.9 886.4 885.3 887.0 887.0 884.5 884.3 885.6 885.2 889.6 893.2 890.7 887.4 MAX. QFE PRESSURE IN HPA 900.0 893.0 890.0 894.3 891.9 889.7 890.0 894.0 893.4 900.0 901.8 898.7 901.8 DAY 10 27 12 5 4 12 3 30 25 2 19 8 MIN. QFE PRESSURE IN HPA 882.0 875.1 877.3 881.0 882.0 879.8 881.0 880.2 878.1 880.4 885.9 883.2 875.1 DAY 7 6 26 10 30 2 6 8 9 27 29 25 MEAN QNH PRESSURE IN HPA 1024.3 1020.5 1019.3 1021.1 1021.2 1018.4 1018.1 1019.5 1019.2 1024.1 1028.1 1025.3 1021.6 MAX. QNH PRESSURE IN HPA 1035.7 1027.9 1024.5 1029.3 1026.6 1024.2 1024.5 1029.0 1028.3 1035.7 1037.7 1034.2 1037.7 DAY 10 27 12 5 4 12 3 30 25 2 19 8 MIN. QNH PRESSURE IN HPA 1015.5 1007.8 1010.3 1014.4 1015.5 1013.1 1014.4 1013.5 1011.1 1013.7 1019.9 1016.9 1007.8 DAY 7 6 26 10 30 2 6 8 9 27 29 25 MEAN QFF PRESSURE IN HPA 1029.0 1023.8 1020.9 1019.5 1015.8 1010.2 1008.9 1011.9 1012.7 1021.8 1030.1 1027.6 1019.4 MAX. QFF PRESSURE IN HPA 1043.5 1033.8 1027.7 1032.9 1023.7 1018.0 1016.0 1025.4 1025.8 1035.5 1043.2 1041.4 1043.5 DAY 11 4 1 5 4 12 4 30 25 3 19 8 MIN. QFF PRESSURE IN HPA 1014.1 1009.8 1007.3 1010.7 1009.0 1003.0 1005.5 1004.7 1002.6 1010.4 1020.5 1015.0 1002.6 DAY 7 6 26 25 30 2 7 8 9 27 29 30 ======================================================================================================================= 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 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 890.8 887.3 886.0 887.4 887.3 884.5 884.1 885.6 885.4 890.0 893.8 891.5 887.8 MAX. QFE PRESSURE IN HPA 901.0 893.8 890.9 895.0 892.6 889.1 890.8 894.4 893.6 900.6 903.1 899.5 903.1 DAY 10 27 22 5 4 12 3 30 25 2 19 8 MIN. QFE PRESSURE IN HPA 882.4 877.5 876.6 879.7 882.8 879.0 880.5 879.8 878.2 879.8 886.8 884.2 876.6 DAY 7 6 26 10 30 6 6 8 9 27 29 25 MEAN QNH PRESSURE IN HPA 1025.4 1021.4 1020.0 1021.6 1021.5 1018.3 1017.9 1019.6 1019.3 1024.5 1028.8 1026.2 1022.0 MAX. QNH PRESSURE IN HPA 1036.8 1028.8 1025.5 1030.1 1027.4 1023.5 1025.4 1029.4 1028.5 1036.4 1039.2 1035.1 1039.2 DAY 10 27 22 5 4 12 3 30 25 2 19 8 MIN. QNH PRESSURE IN HPA 1016.0 1010.5 1009.5 1012.9 1016.4 1012.2 1013.8 1013.1 1011.3 1013.1 1020.9 1018.0 1009.5 DAY 7 6 26 10 30 6 6 8 9 27 29 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 889.4 886.1 885.0 886.5 886.5 883.5 882.9 884.4 884.1 888.5 892.5 889.9 886.6 MAX. QFE PRESSURE IN HPA 900.2 892.0 889.1 893.8 891.7 888.8 890.1 892.8 891.3 899.6 901.7 897.9 901.7 DAY 10 27 12 5 4 12 3 30 25 2 19 7 MIN. QFE PRESSURE IN HPA 882.2 876.7 875.4 877.7 882.6 877.0 879.2 878.7 876.6 878.2 885.9 882.8 875.4 DAY 7 5 26 10 30 6 6 8 9 27 29 25 MEAN QNH PRESSURE IN HPA 1023.9 1020.1 1018.9 1020.5 1020.6 1017.2 1016.6 1018.2 1017.8 1022.8 1027.3 1024.4 1020.7 MAX. QNH PRESSURE IN HPA 1035.9 1026.7 1023.5 1028.8 1026.4 1023.1 1024.6 1027.6 1025.9 1035.2 1037.6 1033.3 1037.6 DAY 10 27 12 5 4 12 3 30 25 2 19 7 MIN. QNH PRESSURE IN HPA 1015.7 1009.6 1008.1 1010.7 1016.2 1009.9 1012.4 1011.8 1009.5 1011.3 1019.9 1016.4 1008.1 DAY 7 5 26 10 30 6 6 8 9 27 29 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 888.8 885.5 884.1 885.6 885.6 882.4 882.1 883.4 882.9 887.7 891.8 889.4 885.8 MAX. QFE PRESSURE IN HPA 899.6 891.4 888.0 893.1 890.4 887.2 889.1 891.5 889.6 898.3 901.2 897.3 901.2 DAY 10 13 12 5 4 11 3 29 25 2 18 8 MIN. QFE PRESSURE IN HPA 882.7 875.4 875.2 876.5 881.8 876.2 878.2 877.7 875.7 877.7 885.8 882.0 875.2 DAY 7 5 26 10 29 6 6 8 9 27 28 15 MEAN QNH PRESSURE IN HPA 1023.1 1019.5 1017.9 1019.6 1019.5 1016.0 1015.6 1017.1 1016.6 1021.9 1026.5 1023.8 1019.8 MAX. QNH PRESSURE IN HPA 1035.2 1026.1 1022.2 1028.0 1024.9 1021.4 1023.5 1026.2 1024.0 1033.8 1037.0 1032.7 1037.0 DAY 10 13 12 5 4 11 3 29 25 2 18 8 MIN. QNH PRESSURE IN HPA 1016.3 1008.1 1007.9 1009.4 1015.3 1009.0 1011.3 1010.7 1008.5 1010.7 1019.8 1015.5 1007.9 DAY 7 5 26 10 29 6 6 8 9 27 28 15 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 1996 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 889.5 886.3 884.7 886.1 885.8 882.4 882.4 883.4 883.2 888.6 892.7 890.1 886.3 MAX. QFE PRESSURE IN HPA 900.4 891.7 888.5 892.7 890.4 886.7 889.5 892.2 890.8 898.3 902.3 898.2 902.3 DAY 10 13 20 4 4 11 3 29 24 2 18 7 MIN. QFE PRESSURE IN HPA 882.4 874.0 878.0 878.1 881.2 877.0 878.7 876.9 876.6 878.3 885.2 883.5 874.0 DAY 6 5 26 10 29 6 6 8 22 27 28 15 MEAN QNH PRESSURE IN HPA 1023.9 1020.3 1018.6 1020.2 1019.7 1016.0 1015.9 1017.1 1016.9 1022.9 1027.5 1024.6 1020.3 MAX. QNH PRESSURE IN HPA 1036.1 1026.4 1022.8 1027.5 1024.9 1020.8 1023.9 1027.0 1025.4 1033.8 1038.3 1033.7 1038.3 DAY 10 13 20 4 4 11 3 29 24 2 18 7 MIN. QNH PRESSURE IN HPA 1016.0 1006.5 1011.0 1011.1 1014.6 1009.9 1011.8 1009.8 1009.5 1011.4 1019.1 1017.2 1006.5 DAY 6 5 26 10 29 6 6 8 22 27 28 15 MEAN QFF PRESSURE IN HPA 1028.6 1023.7 1020.0 1018.5 1014.4 1008.0 1006.9 1009.5 1010.4 1020.8 1029.4 1027.0 1018.1 MAX. QFF PRESSURE IN HPA 1044.3 1033.6 1028.0 1030.7 1021.8 1014.5 1015.2 1021.6 1022.1 1033.6 1042.5 1040.6 1044.3 DAY 10 3 20 4 4 11 3 30 24 2 18 7 MIN. QFF PRESSURE IN HPA 1016.4 1011.8 1010.2 1007.3 1007.4 1002.1 1002.1 1000.8 1000.8 1007.2 1019.9 1017.8 1000.8 DAY 6 5 26 13 25 6 29 8 9 27 28 22 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 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.0 3.9 7.1 15.9 20.1 26.1 29.7 27.4 23.2 18.0 7.7 4.7 15.6 MINIMUN AIR TEMPERATURE (C) -2.3 -3.3 0.7 7.7 10.7 16.0 17.9 14.7 11.2 7.7 1.5 -0.6 6.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 5 4 0 0 0 0 9 DAYS WITH MINIMUM TEMP. <=-4 9 14 2 0 0 0 0 0 0 0 3 4 32 DAYS WITH FREEZING MIN.<= 0 25 23 15 1 0 0 0 0 0 0 8 17 89 TEMPERATURE RECORDS LOWEST(C) -7.8 -13.0 -5.8 -1.0 4.6 11.6 14.0 6.8 5.6 1.8 -7.4 -10.4 -13.0 DAY 30 2 9 14 7 8 1 27 8 21 26 19 MAXIMUM AIR TEMPERATURE (C) 8.7 8.9 12.2 21.1 25.0 31.0 34.9 33.8 28.8 24.3 12.5 8.9 20.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 8 22 30 27 10 4 0 0 101 DAYS WITH MAXIMUM TEMP. <= 0 1 1 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS HIGHEST(C) 16.4 16.6 25.2 29.2 33.2 35.2 39.6 38.8 38.2 32.8 23.0 15.8 39.6 DAY 7 22 24 28 28 16 19 15 2 3 5 10 DIF. BETWEEN (MAX.-MIN.) (C) 11.0 12.2 11.5 13.4 14.3 15.0 17.0 19.1 17.6 16.6 11.0 9.5 14.0 MEAN DAILY TEMP. (MDT) (C) 3.2 2.8 6.4 14.4 17.8 23.5 26.4 24.2 20.0 16.0 7.0 4.1 13.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.5 16.2 76.4 167.6 109.5 29.4 1.7 0.0 0.0 401.3 HEATING DEG. DAYS(BASE 18 0C) 460.0 425.8 358.2 116.9 53.9 0.0 0.0 0.2 16.3 79.4 330.1 430.0 2270.7 DEWPOINT (MEAN C) -4.6 -5.7 -0.4 4.3 7.2 11.1 13.1 14.3 14.4 4.5 1.8 -2.1 4.8 MIXING RATIO (G/KG) 3.16 3.05 4.37 6.19 7.44 9.61 11.12 12.01 11.99 6.33 5.07 3.81 7.01 VAPOUR PRESSURE (HPA) 4.48 4.32 6.15 8.70 10.47 13.42 15.46 16.71 16.75 8.93 7.19 5.41 9.83 SATURATION DEF. (HPA) 4.09 4.33 4.68 10.53 14.54 21.52 27.79 22.01 13.31 13.01 4.01 3.52 11.94 RELATIVE HUMIDITY (MEAN %) 58 54 64 51 47 42 39 47 61 46 69 65 54 RELATIVE HUMIDITY (MAX. %) 77 79 87 77 72 67 58 71 85 71 89 83 76 RELATIVE HUMIDITY (MIN. %) 42 36 45 33 32 28 27 33 46 30 52 50 38 RELATIVE HUMIDITY (MEAN% 03UTC) 75 76 85 76 70 66 58 71 85 69 88 80 75 RELATIVE HUMIDITY (MEAN% 09UTC) 50 43 55 40 38 31 32 39 52 35 57 55 44 RELATIVE HUMIDITY (MEAN% 15UTC) 54 52 64 48 44 40 35 42 54 46 73 70 52 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 20.0 14.7 45.3 22.7 40.3 48.5 0.0 0.0 0.0 12.1 32.4 20.4 256.4 DAYS WITH PRECIPITATION >=10 1 0 0 1 1 0 0 0 0 1 1 0 5 DAYS WITH PRECIPITATION >= 5 2 1 5 1 2 6 0 0 0 1 3 3 24 DAYS WITH PRECIPITATION >= 1 4 4 7 5 9 9 0 0 0 1 5 4 48 DAYS WITH PRECIPITATION 4 8 18 13 10 11 0 0 0 7 8 9 88 GREATEST DAILY PRECIPITATION 10.0 9.0 9.0 11.0 19.0 9.0 0.0 0.0 0.0 10.0 14.0 6.0 19.0 DAY 18 28 28 21 6 8 ** ** ** 25 14 18 DAY WITH THUNDER STORM 0 0 0 1 2 2 0 0 0 0 0 0 5 DAYS WITH SNOW OR SLEET 3 2 4 1 0 0 0 0 0 0 0 2 12 DAYS WITH DUST 0 0 2 1 0 1 1 3 3 1 0 0 12 WIND DIRECTION (PREVAILING) 270 315 315 315 90 90 135 135 90 315 315 270 315 PREVAILING WIND SPEED(KNOTS) 11.2 14.8 17.6 18.2 7.2 9.5 10.0 9.0 7.7 10.4 9.4 10.9 14.4 PREVAILING WIND PERCENT 16.1 18.6 22.6 15.3 20.6 24.0 28.4 27.1 24.0 14.2 10.0 26.5 12.8 CALMS PERCENT OF WIND 54.8 37.9 43.2 41.3 32.3 26.0 28.4 45.8 44.0 56.8 69.3 49.7 44.2 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 298 291 304 308 4 82 115 115 103 301 299 297 326 VECTOR WIND MAGNITUDE(KNOTS) 3.0 3.8 4.3 3.0 3.5 2.9 3.7 2.7 2.3 2.1 1.0 4.6 1.2 WIND STEADINESES (MEAN %) 65.2 50.7 55.8 38.0 43.2 37.2 54.4 56.3 46.9 53.8 41.7 88.5 20.0 WIND SPEED (MEAN KNOTS) 4.6 7.5 7.7 7.9 8.1 7.8 6.8 4.8 4.9 3.9 2.4 5.2 6.0 FASTEST WIND DIRECTION 310 300 290 310 310 310 330 310 310 290 290 290 290 FASTEST WIND SPEED (KNOTS) 31 31 43 35 35 23 31 27 23 23 31 29 43 DAY 18 2 8 10 6 2 19 21 15 7 6 11 DAYS WITH SKY CLEAR (0-2)/8 10 14 3 6 9 7 30 31 27 20 11 10 178 DAYS WITH P.CLOUDY (3-6)/8 13 8 10 15 15 21 1 0 3 6 12 11 115 DAYS WITH CLOUDY (7-8)/8 8 6 18 9 7 2 0 0 0 5 7 10 72 DAYS WITH VISIBILITY =< 2 KM 3 1 5 0 0 0 0 0 0 0 1 3 13 DURATION OF SUNSHINE HOURS 168.5 ****** 143.2 226.2 283.7 316.5 339.5 372.9 321.7 239.9 169.7 155.1 ****** ======================================================================================================================= 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 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 886.6 887.1 883.6 883.6 886.3 882.5 881.3 883.4 887.2 887.9 890.7 887.6 885.7 MAX. QFE PRESSURE IN HPA 896.7 896.0 899.1 891.7 892.8 887.3 889.0 889.9 894.9 895.4 903.2 896.5 903.2 DAY-HOUR 8- 6 25- 6 11- 6 14- 6 8- 3 8- 3 22- 6 24- 3 18- 3 8- 6 8- 6 28-15 MIN. QFE PRESSURE IN HPA 875.0 878.9 873.5 873.7 876.8 877.8 875.8 877.7 877.2 883.4 884.9 878.0 873.5 DAY-HOUR 17-15 1- 3 25-12 10-15 5- 3 24-12 16-12 14-12 2-12 3-12 5-12 10-12 MEAN QNH PRESSURE IN HPA 1020.7 1021.2 1017.3 1017.4 1020.4 1016.1 1014.7 1017.0 1021.3 1022.2 1025.2 1021.8 1019.6 MAX. QNH PRESSURE IN HPA 1032.0 1031.2 1034.7 1026.4 1027.6 1021.5 1023.4 1024.4 1030.0 1030.5 1039.3 1031.8 1039.3 DAY-HOUR 8- 6 25- 6 11- 6 14- 6 8- 3 8- 3 22- 6 24- 3 18- 3 8- 6 8- 6 28-15 MIN. QNH PRESSURE IN HPA 1007.7 1012.0 1006.0 1006.2 1009.7 1010.8 1008.6 1010.7 1010.1 1017.1 1018.8 1011.0 1006.0 DAY-HOUR 17-15 1- 3 25-12 10-15 5- 3 24-12 16-12 14-12 2-12 3-12 5-12 10-12 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 887.0 887.2 883.8 884.3 887.1 883.3 882.2 884.3 888.6 888.8 890.8 887.7 886.3 MAX. QFE PRESSURE IN HPA 895.9 895.0 897.9 890.9 892.8 887.3 888.0 889.9 894.9 894.6 901.9 895.1 901.9 DAY 8 26 11 14 8 8 22 24 18 9 8 29 MIN. QFE PRESSURE IN HPA 879.4 878.9 874.0 873.8 876.8 879.8 877.0 879.2 880.4 885.5 886.4 879.0 873.8 DAY 26 1 30 10 5 25 16 5 2 7 19 10 MEAN QNH PRESSURE IN HPA 1021.1 1021.4 1017.5 1018.1 1021.2 1017.0 1015.8 1018.1 1022.9 1023.1 1025.4 1021.9 1020.3 MAX. QNH PRESSURE IN HPA 1031.1 1030.1 1033.3 1025.5 1027.6 1021.5 1022.2 1024.4 1030.0 1029.6 1037.8 1030.2 1037.8 DAY 8 26 11 14 8 8 22 24 18 9 8 29 MIN. QNH PRESSURE IN HPA 1012.6 1012.0 1006.5 1006.3 1009.7 1013.1 1009.9 1012.4 1013.7 1019.4 1020.5 1012.2 1006.3 DAY 26 1 30 10 5 25 16 5 2 7 19 10 MEAN QFF PRESSURE IN HPA 1024.1 1024.8 1018.6 1015.2 1016.1 1009.0 1006.3 1010.1 1016.4 1019.9 1026.8 1024.7 1017.7 MAX. QFF PRESSURE IN HPA 1035.0 1035.4 1036.3 1026.9 1025.4 1015.9 1014.1 1017.0 1027.1 1029.1 1040.9 1036.4 1040.9 DAY 20 8 11 14 7 8 22 28 8 9 8 29 MIN. QFF PRESSURE IN HPA 1014.3 1010.1 1001.9 1002.7 1001.9 1004.1 999.6 1004.8 1004.5 1013.0 1018.4 1012.6 999.6 DAY 16 23 30 10 5 25 16 14 2 4 5 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 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 888.0 888.1 884.6 884.8 887.1 883.4 882.2 884.1 888.4 889.3 891.6 888.7 886.7 MAX. QFE PRESSURE IN HPA 896.7 896.0 899.1 891.7 892.3 887.3 889.0 888.6 894.1 895.4 903.2 895.8 903.2 DAY 8 25 11 14 16 8 22 24 19 8 8 28 MIN. QFE PRESSURE IN HPA 879.3 882.2 876.2 876.3 878.7 879.8 877.0 880.0 879.8 885.9 886.3 880.6 876.2 DAY 16 28 8 10 5 25 16 5 2 7 5 10 MEAN QNH PRESSURE IN HPA 1022.2 1022.3 1018.4 1018.6 1021.3 1017.1 1015.7 1017.9 1022.7 1023.8 1026.3 1023.0 1020.8 MAX. QNH PRESSURE IN HPA 1032.0 1031.2 1034.7 1026.4 1027.1 1021.5 1023.4 1022.9 1029.1 1030.5 1039.3 1031.0 1039.3 DAY 8 25 11 14 16 8 22 24 19 8 8 28 MIN. QNH PRESSURE IN HPA 1012.5 1015.7 1009.0 1009.1 1011.8 1013.1 1009.9 1013.3 1013.1 1019.9 1020.3 1013.9 1009.0 DAY 16 28 8 10 5 25 16 5 2 7 5 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 886.4 886.9 883.6 883.6 886.4 882.4 881.3 883.2 887.1 887.5 890.2 887.2 885.5 MAX. QFE PRESSURE IN HPA 894.6 894.9 898.7 889.6 891.4 886.5 887.8 887.9 893.0 894.1 901.7 894.3 901.7 DAY 24 21 11 20 12 4 22 24 7 8 7 28 MIN. QFE PRESSURE IN HPA 877.6 880.4 875.7 875.3 880.3 879.0 876.5 878.5 877.8 883.8 885.2 878.8 875.3 DAY 17 23 25 10 5 23 16 14 2 7 5 10 MEAN QNH PRESSURE IN HPA 1020.4 1021.0 1017.3 1017.3 1020.4 1016.0 1014.7 1016.8 1021.2 1021.7 1024.7 1021.4 1019.4 MAX. QNH PRESSURE IN HPA 1029.6 1030.0 1034.2 1024.0 1026.1 1020.6 1022.0 1022.1 1027.9 1029.1 1037.6 1029.3 1037.6 DAY 24 21 11 20 12 4 22 24 7 8 7 28 MIN. QNH PRESSURE IN HPA 1010.6 1013.7 1008.5 1008.0 1013.6 1012.2 1009.4 1011.6 1010.8 1017.5 1019.1 1011.9 1008.0 DAY 17 23 25 10 5 23 16 14 2 7 5 10 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 885.7 886.1 882.5 882.6 885.4 881.7 880.3 882.5 885.8 886.7 889.8 886.8 884.7 MAX. QFE PRESSURE IN HPA 894.3 894.7 895.8 889.4 890.8 886.9 886.5 887.0 891.7 893.9 901.4 894.3 901.4 DAY 24 21 11 23 12 4 22 24 7 8 7 28 MIN. QFE PRESSURE IN HPA 875.9 879.0 873.5 874.8 878.6 877.8 875.8 877.7 877.2 883.4 884.9 878.0 873.5 DAY 17 22 25 10 4 24 16 14 2 3 5 10 MEAN QNH PRESSURE IN HPA 1019.7 1020.1 1016.1 1016.2 1019.4 1015.2 1013.6 1016.0 1019.8 1020.8 1024.2 1020.9 1018.5 MAX. QNH PRESSURE IN HPA 1029.3 1029.8 1031.0 1023.8 1025.4 1021.0 1020.6 1021.1 1026.4 1028.9 1037.3 1029.3 1037.3 DAY 24 21 11 23 12 4 22 24 7 8 7 28 MIN. QNH PRESSURE IN HPA 1008.7 1012.2 1006.0 1007.4 1011.7 1010.8 1008.6 1010.7 1010.1 1017.1 1018.8 1011.0 1006.0 DAY 17 22 25 10 4 24 16 14 2 3 5 10 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 1997 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 886.2 887.2 883.4 883.0 885.7 882.0 880.5 882.7 886.1 887.5 891.0 887.8 885.3 MAX. QFE PRESSURE IN HPA 895.0 895.4 896.3 889.8 891.0 886.5 886.0 887.4 892.4 893.2 902.7 896.5 902.7 DAY 19 21 11 23 15 7 22 24 7 8 7 28 MIN. QFE PRESSURE IN HPA 875.0 880.0 874.0 873.7 877.7 878.3 875.8 878.0 877.8 884.2 885.5 879.6 873.7 DAY 17 22 25 10 4 23 16 14 2 3 19 10 MEAN QNH PRESSURE IN HPA 1020.2 1021.3 1017.1 1016.6 1019.7 1015.5 1013.8 1016.3 1020.1 1021.7 1025.6 1022.1 1019.2 MAX. QNH PRESSURE IN HPA 1030.1 1030.5 1031.5 1024.3 1025.6 1020.6 1020.0 1021.6 1027.2 1028.1 1038.7 1031.8 1038.7 DAY 19 21 11 23 15 7 22 24 7 8 7 28 MIN. QNH PRESSURE IN HPA 1007.7 1013.3 1006.5 1006.2 1010.7 1011.4 1008.6 1011.0 1010.8 1018.0 1019.4 1012.8 1006.2 DAY 17 22 25 10 4 23 16 14 2 3 19 10 MEAN QFF PRESSURE IN HPA 1023.3 1024.8 1018.1 1013.5 1014.5 1007.5 1004.2 1008.1 1013.5 1018.5 1027.0 1024.8 1016.5 MAX. QFF PRESSURE IN HPA 1035.5 1035.1 1033.9 1025.4 1023.8 1015.9 1011.0 1013.9 1024.2 1026.0 1041.2 1037.7 1041.2 DAY 19 7 11 12 15 7 22 25 7 8 7 28 MIN. QFF PRESSURE IN HPA 1009.5 1012.7 1003.2 1002.0 1003.0 1002.2 998.2 1001.7 1001.7 1010.9 1017.0 1013.0 998.2 DAY 17 23 25 10 4 23 16 14 2 3 5 9 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION 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 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 1.1 1.2 8.4 17.1 19.5 26.7 28.6 26.9 22.2 15.6 11.7 8.3 15.6 MINIMUN AIR TEMPERATURE (C) -3.6 -4.2 1.2 9.0 11.1 16.1 18.1 17.2 10.7 5.9 3.3 1.8 7.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 5 2 0 0 0 0 8 DAYS WITH MINIMUM TEMP. <=-4 15 16 6 0 0 0 0 0 0 0 0 1 38 DAYS WITH FREEZING MIN.<= 0 27 23 11 0 0 0 0 0 0 2 3 9 75 TEMPERATURE RECORDS LOWEST(C) -9.8 -12.2 -7.8 2.4 1.8 9.8 12.6 11.6 4.6 -3.6 -2.8 -4.4 -12.2 DAY 15 18 4 3 4 12 3 26 13 11 25 23 MAXIMUM AIR TEMPERATURE (C) 5.2 5.6 13.7 22.5 23.9 31.0 33.3 31.8 27.8 22.3 17.6 13.4 20.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 2 22 29 27 10 1 0 0 91 DAYS WITH MAXIMUM TEMP. <= 0 0 5 2 0 0 0 0 0 0 0 0 0 7 TEMPERATURE RECORDS HIGHEST(C) 10.8 20.6 25.6 29.6 32.6 36.4 40.8 34.4 34.4 33.4 25.4 26.6 40.8 DAY 26 8 30 15 22 28 6 13 24 2 1 11 DIF. BETWEEN (MAX.-MIN.) (C) 8.8 9.8 12.5 13.5 12.8 14.9 15.2 14.6 17.1 16.4 14.3 11.6 13.5 MEAN DAILY TEMP. (MDT) (C) 0.8 0.7 7.5 15.7 17.5 23.6 25.7 24.5 19.2 14.1 10.4 7.6 13.9 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.5 7.2 81.5 144.7 107.9 22.8 2.0 0.0 0.0 366.6 HEATING DEG. DAYS(BASE 18 0C) 532.4 483.7 325.6 90.5 59.5 0.0 0.0 0.0 24.0 130.4 227.1 322.5 2195.7 DEWPOINT (MEAN C) -4.1 -4.2 -1.5 5.6 6.6 5.8 7.4 7.9 3.7 1.2 -0.1 -1.5 2.2 MIXING RATIO (G/KG) 3.29 3.31 4.13 6.71 7.16 6.82 7.57 7.86 6.00 5.01 4.40 3.98 5.52 VAPOUR PRESSURE (HPA) 4.66 4.69 5.83 9.44 10.07 9.59 10.60 11.03 8.46 7.10 6.25 5.67 7.78 SATURATION DEF. (HPA) 2.18 2.60 6.30 11.57 13.82 26.40 29.79 25.48 19.83 12.19 8.38 6.00 13.71 RELATIVE HUMIDITY (MEAN %) 71 70 57 52 46 29 29 33 34 45 51 58 48 RELATIVE HUMIDITY (MAX. %) 86 86 81 77 69 49 51 54 55 69 74 75 69 RELATIVE HUMIDITY (MIN. %) 56 56 38 35 33 20 19 23 21 27 32 43 34 RELATIVE HUMIDITY (MEAN% 03UTC) 84 83 80 76 68 49 51 53 55 69 73 74 68 RELATIVE HUMIDITY (MEAN% 09UTC) 62 64 47 41 38 22 21 25 25 34 39 50 39 RELATIVE HUMIDITY (MEAN% 15UTC) 72 72 53 48 43 26 24 30 31 46 54 59 47 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 30.8 88.4 18.8 56.5 23.4 1.6 0.6 0.9 0.8 5.0 1.2 7.4 235.4 DAYS WITH PRECIPITATION >=10 0 3 1 2 1 0 0 0 0 0 0 0 7 DAYS WITH PRECIPITATION >= 5 3 5 1 5 2 0 0 0 0 0 0 0 16 DAYS WITH PRECIPITATION >= 1 7 8 4 5 5 1 0 0 0 2 1 3 36 DAYS WITH PRECIPITATION 11 13 11 11 11 4 2 2 1 3 2 8 79 GREATEST DAILY PRECIPITATION 8.0 24.0 10.0 19.0 11.0 1.0 0.6 0.5 0.8 3.0 1.0 3.1 24.0 DAY 14 12 2 6 1 4 25 7 11 25 17 25 DAY WITH THUNDER STORM 0 1 0 2 4 0 0 1 0 0 0 1 9 DAYS WITH SNOW OR SLEET 4 8 2 0 0 0 0 0 0 0 0 0 14 DAYS WITH DUST 0 0 3 0 0 1 1 0 2 0 0 0 7 WIND DIRECTION (PREVAILING) 270 270 270 90 90 90 90 90 90 90 315 270 270 PREVAILING WIND SPEED(KNOTS) 11.1 11.6 13.9 6.8 7.5 7.1 7.6 7.8 8.5 6.8 10.3 9.3 11.2 PREVAILING WIND PERCENT 24.5 24.3 21.9 12.0 19.4 14.0 20.6 18.1 21.3 12.3 15.3 21.3 12.8 CALMS PERCENT OF WIND 46.5 47.9 52.3 52.0 43.2 41.3 37.4 43.2 50.7 61.9 66.0 47.1 49.1 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 296 295 287 341 345 11 71 45 92 308 304 299 313 VECTOR WIND MAGNITUDE(KNOTS) 4.0 3.8 3.8 0.7 0.8 1.1 1.2 1.0 2.1 0.7 1.8 3.0 1.3 WIND STEADINESES (MEAN %) 76.9 69.1 69.1 15.9 14.8 22.9 20.3 18.5 46.7 22.6 64.3 62.5 27.1 WIND SPEED (MEAN KNOTS) 5.2 5.5 5.5 4.4 5.4 4.8 5.9 5.4 4.5 3.1 2.8 4.8 4.8 FASTEST WIND DIRECTION 290 290 290 290 310 300 310 310 310 310 300 310 290 FASTEST WIND SPEED (KNOTS) 29 29 35 27 23 19 31 23 23 23 23 23 35 DAY 14 28 26 7 27 17 15 3 11 18 2 19 DAYS WITH SKY CLEAR (0-2)/8 5 10 7 9 9 23 28 24 26 20 14 11 186 DAYS WITH P.CLOUDY (3-6)/8 13 5 16 14 19 7 3 7 4 10 14 14 126 DAYS WITH CLOUDY (7-8)/8 13 13 8 7 3 0 0 0 0 1 2 6 53 DAYS WITH VISIBILITY =< 2 KM 6 8 5 0 0 0 0 0 0 3 3 6 31 DURATION OF SUNSHINE HOURS 124.4 139.7 186.5 218.7 284.4 355.1 358.3 335.1 306.1 257.8 212.3 156.8 2935.2 ======================================================================================================================= 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 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 885.7 886.7 884.8 884.9 886.3 885.0 881.6 884.6 886.4 890.0 890.3 891.7 886.5 MAX. QFE PRESSURE IN HPA 895.9 899.8 895.8 896.0 895.0 890.2 886.8 889.3 893.0 900.6 900.4 899.8 900.6 DAY-HOUR 4- 6 23- 6 26-15 12- 6 3- 9 5- 6 15- 6 19- 6 29- 3 9-15 21- 6 29-15 MIN. QFE PRESSURE IN HPA 870.2 872.8 871.4 877.0 875.1 880.2 872.4 880.2 879.4 879.5 883.3 880.8 870.2 DAY-HOUR 13-15 13-15 30- 6 21-12 22- 9 24-12 6-12 13-12 6-12 2-12 1-12 21- 9 MEAN QNH PRESSURE IN HPA 1019.7 1020.8 1018.6 1018.7 1020.3 1018.9 1015.1 1018.5 1020.4 1024.5 1024.9 1026.4 1020.6 MAX. QNH PRESSURE IN HPA 1031.1 1035.5 1031.0 1031.2 1030.1 1024.7 1020.9 1023.7 1027.9 1036.4 1036.1 1035.5 1036.4 DAY-HOUR 4- 6 23- 6 26-15 12- 6 3- 9 5- 6 15- 6 19- 6 29- 3 9-15 21- 6 29-15 MIN. QNH PRESSURE IN HPA 1002.3 1005.2 1003.6 1009.9 1007.8 1013.5 1004.8 1013.5 1012.6 1012.7 1017.0 1014.2 1002.3 DAY-HOUR 13-15 13-15 30- 6 21-12 22- 9 24-12 6-12 13-12 6-12 2-12 1-12 21- 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 885.8 886.7 885.1 885.5 886.8 885.8 882.4 885.4 887.3 890.6 890.8 892.1 887.0 MAX. QFE PRESSURE IN HPA 894.5 899.4 893.2 894.9 893.5 890.1 886.4 888.6 893.0 900.0 899.4 897.1 900.0 DAY 4 23 27 12 3 5 20 25 29 10 21 30 MIN. QFE PRESSURE IN HPA 876.3 873.3 873.1 878.9 877.2 882.0 874.3 882.0 882.1 882.5 885.5 881.9 873.1 DAY 13 14 30 21 22 24 6 13 3 2 17 21 MEAN QNH PRESSURE IN HPA 1019.8 1020.8 1019.0 1019.5 1020.9 1019.8 1016.0 1019.3 1021.5 1025.2 1025.3 1026.8 1021.2 MAX. QNH PRESSURE IN HPA 1029.5 1035.0 1028.1 1030.0 1028.4 1024.6 1020.5 1022.9 1027.9 1035.7 1035.0 1032.5 1035.7 DAY 4 23 27 12 3 5 20 25 29 10 21 30 MIN. QNH PRESSURE IN HPA 1009.1 1005.8 1005.5 1012.0 1010.1 1015.5 1006.9 1015.5 1015.6 1016.1 1019.4 1015.4 1005.5 DAY 13 14 30 21 22 24 6 13 3 2 17 21 MEAN QFF PRESSURE IN HPA 1024.2 1025.1 1019.8 1015.7 1015.9 1011.7 1006.9 1011.1 1016.0 1023.2 1025.2 1028.0 1018.6 MAX. QFF PRESSURE IN HPA 1034.5 1038.3 1030.1 1025.5 1029.1 1016.5 1011.5 1015.1 1026.1 1039.0 1034.6 1036.5 1039.0 DAY 4 11 27 12 3 5 20 25 13 10 21 30 MIN. QFF PRESSURE IN HPA 1013.6 1008.2 1000.4 1005.6 1001.5 1005.9 996.2 1007.1 1007.4 1010.5 1017.5 1018.4 996.2 DAY 14 8 30 21 22 29 6 13 3 2 1 21 ======================================================================================================================= 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 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 886.5 887.6 885.8 886.0 887.1 885.8 882.7 885.8 887.7 891.2 891.5 893.1 887.6 MAX. QFE PRESSURE IN HPA 895.9 899.8 893.3 896.0 894.7 890.2 886.8 889.3 893.0 900.2 900.4 898.9 900.4 DAY 4 23 27 12 3 5 15 19 29 10 21 29 MIN. QFE PRESSURE IN HPA 874.9 875.6 871.4 878.3 876.3 882.5 874.0 881.8 882.2 882.9 885.9 882.5 871.4 DAY 13 14 30 23 22 24 6 13 3 2 1 21 MEAN QNH PRESSURE IN HPA 1020.6 1021.8 1019.7 1020.0 1021.3 1019.8 1016.3 1019.7 1022.0 1025.8 1026.2 1027.9 1021.8 MAX. QNH PRESSURE IN HPA 1031.1 1035.5 1028.2 1031.2 1029.8 1024.7 1020.9 1023.7 1027.9 1035.9 1036.1 1034.5 1036.1 DAY 4 23 27 12 3 5 15 19 29 10 21 29 MIN. QNH PRESSURE IN HPA 1007.6 1008.3 1003.6 1011.4 1009.1 1016.1 1006.5 1015.3 1015.7 1016.5 1019.9 1016.1 1003.6 DAY 13 14 30 23 22 24 6 13 3 2 1 21 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 885.6 886.8 884.9 885.0 886.3 885.0 881.7 884.7 886.4 889.9 890.3 891.6 886.5 MAX. QFE PRESSURE IN HPA 894.1 898.9 894.7 894.9 895.0 889.4 886.5 888.3 891.5 899.6 899.0 898.7 899.6 DAY 4 23 26 12 3 5 15 19 27 9 21 29 MIN. QFE PRESSURE IN HPA 872.8 875.6 872.6 878.3 875.1 881.1 872.8 881.0 880.7 881.1 884.6 880.8 872.6 DAY 13 14 30 23 22 24 6 13 6 2 1 21 MEAN QNH PRESSURE IN HPA 1019.5 1020.9 1018.7 1018.9 1020.4 1018.9 1015.2 1018.6 1020.5 1024.4 1024.8 1026.3 1020.6 MAX. QNH PRESSURE IN HPA 1029.1 1034.5 1029.8 1030.0 1030.1 1023.8 1020.6 1022.6 1026.2 1035.2 1034.6 1034.2 1035.2 DAY 4 23 26 12 3 5 15 19 27 9 21 29 MIN. QNH PRESSURE IN HPA 1005.2 1008.3 1005.0 1011.4 1007.8 1014.5 1005.2 1014.4 1014.1 1014.5 1018.4 1014.2 1005.0 DAY 13 14 30 23 22 24 6 13 6 2 1 21 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 885.0 886.0 883.8 883.7 885.5 884.2 880.6 883.6 885.1 888.8 889.2 890.6 885.5 MAX. QFE PRESSURE IN HPA 893.0 897.1 895.0 893.6 894.4 888.5 885.0 886.9 890.8 900.0 896.5 898.7 900.0 DAY 4 23 26 12 3 5 22 9 12 9 21 29 MIN. QFE PRESSURE IN HPA 870.8 874.6 872.1 877.0 875.4 880.2 872.4 880.2 879.4 879.5 883.3 881.7 870.8 DAY 13 13 30 21 22 24 6 13 6 2 1 21 MEAN QNH PRESSURE IN HPA 1018.9 1020.0 1017.6 1017.4 1019.4 1018.0 1014.0 1017.3 1019.0 1023.1 1023.6 1025.2 1019.4 MAX. QNH PRESSURE IN HPA 1027.9 1032.5 1030.1 1028.5 1029.4 1022.8 1018.9 1021.0 1025.4 1035.7 1031.8 1034.2 1035.7 DAY 4 23 26 12 3 5 22 9 12 9 21 29 MIN. QNH PRESSURE IN HPA 1003.0 1007.2 1004.4 1009.9 1008.1 1013.5 1004.8 1013.5 1012.6 1012.7 1017.0 1015.2 1003.0 DAY 13 13 30 21 22 24 6 13 6 2 1 21 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 1998 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 885.6 886.5 884.5 884.1 885.7 884.3 880.7 883.8 885.4 889.5 890.0 891.3 886.0 MAX. QFE PRESSURE IN HPA 893.8 897.5 895.8 893.6 894.6 888.7 885.7 886.9 891.2 900.6 897.2 899.8 900.6 DAY 22 22 26 12 3 5 22 9 12 9 21 29 MIN. QFE PRESSURE IN HPA 870.2 872.8 874.2 877.0 877.1 880.6 872.7 880.4 880.0 880.9 884.1 884.5 870.2 DAY 13 13 30 21 22 24 6 5 6 2 1 21 MEAN QNH PRESSURE IN HPA 1019.6 1020.6 1018.3 1017.9 1019.6 1018.1 1014.0 1017.5 1019.3 1023.9 1024.5 1026.0 1020.0 MAX. QNH PRESSURE IN HPA 1028.8 1032.9 1031.0 1028.5 1029.6 1023.0 1019.7 1021.0 1025.8 1036.4 1032.6 1035.5 1036.4 DAY 22 22 26 12 3 5 22 9 12 9 21 29 MIN. QNH PRESSURE IN HPA 1002.3 1005.2 1006.8 1009.9 1010.0 1013.9 1005.1 1013.7 1013.3 1014.3 1017.9 1018.3 1002.3 DAY 13 13 30 21 22 24 6 5 6 2 1 21 MEAN QFF PRESSURE IN HPA 1023.9 1024.9 1018.9 1014.0 1014.5 1010.1 1005.0 1009.3 1013.9 1021.9 1024.4 1027.1 1017.3 MAX. QFF PRESSURE IN HPA 1033.7 1039.0 1032.6 1024.2 1029.8 1015.1 1010.7 1013.0 1022.6 1038.8 1032.7 1037.6 1039.0 DAY 22 23 26 1 3 5 22 19 12 9 21 29 MIN. QFF PRESSURE IN HPA 1006.8 1006.9 1003.8 1003.8 1001.9 1004.5 993.8 1005.3 1005.2 1008.4 1016.0 1019.7 993.8 DAY 13 8 30 21 22 29 6 5 6 2 1 24 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION 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 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.2 7.9 7.7 13.6 19.9 26.5 26.7 28.1 21.6 16.4 7.3 6.9 15.5 MINIMUN AIR TEMPERATURE (C) -1.7 1.0 2.1 5.4 9.8 15.1 16.7 15.8 10.2 6.3 1.7 0.3 6.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 1 0 0 0 0 0 0 1 DAYS WITH MINIMUM TEMP. <=-4 7 0 1 0 0 0 0 0 0 0 0 2 10 DAYS WITH FREEZING MIN.<= 0 18 12 11 1 0 0 0 0 0 0 12 13 67 TEMPERATURE RECORDS LOWEST(C) -10.4 -3.2 -4.6 -3.2 3.0 10.6 9.8 10.8 2.2 1.2 -3.2 -6.0 -10.4 DAY 4 1 6 24 23 18 14 16 29 27 7 2 MAXIMUM AIR TEMPERATURE (C) 7.4 12.8 11.6 18.6 24.9 31.4 31.3 33.5 27.4 22.6 11.6 11.9 20.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 7 21 24 30 9 1 0 0 92 DAYS WITH MAXIMUM TEMP. <= 0 1 0 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS HIGHEST(C) 14.6 18.8 21.4 26.4 32.4 37.2 36.4 35.8 34.4 30.0 18.4 17.6 37.2 DAY 16 27 27 30 19 29 5 6 13 12 19 30 DIF. BETWEEN (MAX.-MIN.) (C) 9.1 11.8 9.5 13.2 15.1 16.3 14.6 17.7 17.2 16.3 9.9 11.6 13.5 MEAN DAILY TEMP. (MDT) (C) 2.8 6.9 6.9 12.0 17.4 23.2 24.0 24.6 18.8 14.4 6.6 6.1 13.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 7.8 70.4 98.5 112.5 12.8 0.0 0.0 0.0 302.0 HEATING DEG. DAYS(BASE 18 0C) 470.1 310.1 345.5 180.2 52.9 0.0 0.0 0.0 36.1 114.7 340.7 368.6 2219.0 DEWPOINT (MEAN C) -3.7 -1.6 -0.1 1.8 4.7 4.5 6.8 2.6 3.3 2.0 0.6 -2.4 1.5 MIXING RATIO (G/KG) 3.43 3.97 4.47 5.20 6.31 6.29 7.22 5.48 5.80 5.21 4.59 3.71 5.14 VAPOUR PRESSURE (HPA) 4.87 5.62 6.32 7.35 8.88 8.83 10.11 7.70 8.18 7.37 6.51 5.29 7.25 SATURATION DEF. (HPA) 3.15 5.55 4.87 9.12 15.69 26.97 26.00 31.88 19.41 12.57 4.26 5.17 13.72 RELATIVE HUMIDITY (MEAN %) 64 57 64 51 42 28 31 22 35 44 66 57 47 RELATIVE HUMIDITY (MAX. %) 80 79 82 80 66 48 50 37 60 64 85 74 67 RELATIVE HUMIDITY (MIN. %) 48 38 48 33 28 17 22 14 21 28 49 41 32 RELATIVE HUMIDITY (MEAN% 03UTC) 79 76 80 79 66 48 50 37 59 62 83 71 66 RELATIVE HUMIDITY (MEAN% 09UTC) 55 47 56 41 36 21 24 16 25 33 55 49 38 RELATIVE HUMIDITY (MEAN% 15UTC) 66 55 62 46 36 23 25 21 31 48 70 60 45 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 42.0 37.6 53.3 23.1 13.9 9.0 4.0 0.0 5.2 7.2 15.4 19.7 230.4 DAYS WITH PRECIPITATION >=10 2 1 1 0 0 0 0 0 0 0 0 1 5 DAYS WITH PRECIPITATION >= 5 3 3 4 2 2 1 0 0 1 0 1 1 18 DAYS WITH PRECIPITATION >= 1 4 7 7 6 2 1 1 0 1 2 6 2 39 DAYS WITH PRECIPITATION 9 10 17 12 5 1 2 1 2 3 14 6 82 GREATEST DAILY PRECIPITATION 21.0 18.0 22.0 7.0 8.8 9.0 4.0 0.0 5.0 4.0 5.0 17.3 22.0 DAY 19 5 3 7 11 8 13 ** 1 26 28 17 DAY WITH THUNDER STORM 0 0 1 1 3 2 0 1 0 1 0 0 9 DAYS WITH SNOW OR SLEET 4 1 5 0 0 0 0 0 0 0 4 0 14 DAYS WITH DUST 0 0 0 0 0 2 0 0 2 2 1 0 7 WIND DIRECTION (PREVAILING) 270 315 135 90 90 90 90 90 90 90 315 315 90 PREVAILING WIND SPEED(KNOTS) 12.0 10.2 7.3 8.3 7.5 8.4 8.3 8.0 7.9 6.1 13.2 12.3 7.8 PREVAILING WIND PERCENT 20.6 21.4 15.5 21.3 20.0 23.3 23.2 11.6 18.7 9.7 18.0 27.1 12.9 CALMS PERCENT OF WIND 56.1 48.6 43.9 40.0 40.6 40.7 36.1 49.0 53.3 71.6 62.0 43.2 48.8 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 299 300 317 5 17 83 92 28 107 353 302 299 324 VECTOR WIND MAGNITUDE(KNOTS) 4.5 3.2 0.8 0.7 0.7 2.0 1.7 1.6 1.8 0.4 3.4 5.3 1.2 WIND STEADINESES (MEAN %) 90.0 68.1 15.4 10.9 12.1 36.4 29.3 37.2 41.9 17.4 75.6 84.1 24.0 WIND SPEED (MEAN KNOTS) 5.0 4.7 5.2 6.4 5.8 5.5 5.8 4.3 4.3 2.3 4.5 6.3 5.0 FASTEST WIND DIRECTION 280 320 290 300 290 310 310 150 290 310 290 290 300 FASTEST WIND SPEED (KNOTS) 29 23 23 39 27 31 23 19 19 27 29 25 39 DAY 1 2 27 9 21 3 13 31 4 13 10 10 DAYS WITH SKY CLEAR (0-2)/8 14 13 8 11 22 25 22 30 28 22 10 17 222 DAYS WITH P.CLOUDY (3-6)/8 9 11 10 16 8 5 8 1 1 8 8 8 93 DAYS WITH CLOUDY (7-8)/8 8 4 13 3 1 0 1 0 1 1 12 6 50 DAYS WITH VISIBILITY =< 2 KM 3 3 7 1 0 0 0 1 0 1 6 5 27 DURATION OF SUNSHINE HOURS 153.2 193.6 152.1 233.5 310.5 344.7 332.6 365.9 307.2 267.9 143.0 177.5 2981.7 ======================================================================================================================= 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 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 888.3 885.8 885.7 886.5 885.6 882.5 881.5 883.0 885.7 888.4 888.8 891.5 886.1 MAX. QFE PRESSURE IN HPA 902.0 895.8 893.3 896.3 892.0 890.7 886.6 888.8 891.4 895.1 898.0 901.7 902.0 DAY-HOUR 2- 6 12- 6 31- 6 23- 6 9- 6 17- 3 19- 3 19- 6 29- 6 26- 6 30-15 1- 6 MIN. QFE PRESSURE IN HPA 880.7 873.2 876.7 878.8 875.3 871.0 877.5 879.1 879.7 883.0 880.2 882.0 871.0 DAY-HOUR 10-12 21- 3 21-15 9- 6 14-15 25-15 12-12 7-12 13-12 31-12 26-12 14-12 MEAN QNH PRESSURE IN HPA 1022.6 1019.8 1019.7 1020.6 1019.5 1016.1 1014.9 1016.6 1019.6 1022.7 1023.2 1026.2 1020.1 MAX. QNH PRESSURE IN HPA 1037.9 1031.0 1028.2 1031.5 1026.7 1025.3 1020.7 1023.1 1026.1 1030.2 1033.5 1037.6 1037.9 DAY-HOUR 2- 6 12- 6 31- 6 23- 6 9- 6 17- 3 19- 3 19- 6 29- 6 26- 6 30-15 1- 6 MIN. QNH PRESSURE IN HPA 1014.1 1005.7 1009.6 1011.9 1008.0 1003.2 1010.5 1012.3 1012.9 1016.6 1013.5 1015.5 1003.2 DAY-HOUR 10-12 21- 3 21-15 9- 6 14-15 25-15 12-12 7-12 13-12 31-12 26-12 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 888.4 886.1 885.9 887.1 886.4 883.4 882.2 883.8 886.5 889.2 889.2 891.7 886.7 MAX. QFE PRESSURE IN HPA 900.4 894.8 892.6 895.8 891.5 890.7 886.6 888.5 890.7 894.0 896.2 900.3 900.4 DAY 2 12 31 23 27 17 19 19 30 26 14 11 MIN. QFE PRESSURE IN HPA 881.9 873.2 879.8 879.2 880.1 874.1 879.3 880.3 881.8 885.6 883.3 884.6 873.2 DAY 10 21 22 9 21 26 12 7 16 13 26 28 MEAN QNH PRESSURE IN HPA 1022.7 1020.1 1019.9 1021.3 1020.5 1017.1 1015.8 1017.5 1020.6 1023.6 1023.6 1026.4 1020.7 MAX. QNH PRESSURE IN HPA 1036.1 1029.9 1027.4 1031.0 1026.2 1025.3 1020.7 1022.8 1025.3 1029.0 1031.4 1036.0 1036.1 DAY 2 12 31 23 27 17 19 19 30 26 14 11 MIN. QNH PRESSURE IN HPA 1015.4 1005.7 1013.1 1012.4 1013.4 1006.7 1012.5 1013.6 1015.3 1019.6 1017.0 1018.4 1005.7 DAY 10 21 22 9 21 26 12 7 16 13 26 28 MEAN QFF PRESSURE IN HPA 1026.0 1021.2 1020.6 1019.4 1015.4 1009.1 1007.4 1009.2 1015.4 1021.0 1024.9 1028.4 1018.2 MAX. QFF PRESSURE IN HPA 1042.9 1032.1 1031.0 1033.7 1021.9 1018.6 1013.2 1015.5 1025.1 1029.2 1036.0 1040.4 1042.9 DAY 2 12 19 23 12 17 19 19 29 27 30 1 MIN. QFF PRESSURE IN HPA 1015.7 1003.1 1010.7 1010.3 1007.5 996.7 1003.7 1004.0 1007.8 1014.2 1017.3 1018.4 996.7 DAY 10 21 27 9 14 26 12 7 16 12 26 15 ======================================================================================================================= 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 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 889.2 886.9 886.7 887.7 886.8 883.7 882.5 884.1 886.9 889.7 889.8 892.6 887.2 MAX. QFE PRESSURE IN HPA 902.0 895.8 893.3 896.3 892.0 890.4 886.5 888.8 891.4 895.1 897.4 901.7 902.0 DAY 2 12 31 23 9 17 18 19 29 26 30 1 MIN. QFE PRESSURE IN HPA 882.3 876.1 879.9 878.8 881.1 874.8 879.0 880.6 882.1 886.6 883.1 885.7 874.8 DAY 28 21 21 9 14 25 12 7 16 13 26 14 MEAN QNH PRESSURE IN HPA 1023.6 1021.0 1020.7 1021.9 1020.9 1017.4 1016.1 1017.9 1021.0 1024.1 1024.3 1027.4 1021.4 MAX. QNH PRESSURE IN HPA 1037.9 1031.0 1028.2 1031.5 1026.7 1024.9 1020.6 1023.1 1026.1 1030.2 1032.8 1037.6 1037.9 DAY 2 12 31 23 9 17 18 19 29 26 30 1 MIN. QNH PRESSURE IN HPA 1015.9 1008.9 1013.2 1011.9 1014.5 1007.4 1012.2 1013.9 1015.6 1020.7 1016.8 1019.7 1007.4 DAY 28 21 21 9 14 25 12 7 16 13 26 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 888.2 885.9 886.1 886.6 885.8 882.7 881.6 883.1 885.7 888.3 888.7 891.4 886.2 MAX. QFE PRESSURE IN HPA 901.0 894.6 892.9 895.1 891.0 888.8 885.5 887.8 890.8 893.9 896.9 899.9 901.0 DAY 2 12 31 23 27 17 18 20 28 26 30 11 MIN. QFE PRESSURE IN HPA 881.0 876.1 878.6 879.2 878.2 873.6 877.6 879.7 880.9 885.2 881.2 883.4 873.6 DAY 28 21 21 9 14 25 12 7 16 13 26 14 MEAN QNH PRESSURE IN HPA 1022.5 1019.9 1020.1 1020.7 1019.8 1016.3 1015.1 1016.7 1019.7 1022.6 1023.0 1026.0 1020.2 MAX. QNH PRESSURE IN HPA 1036.8 1029.6 1027.7 1030.2 1025.6 1023.1 1019.4 1022.0 1025.4 1028.9 1032.2 1035.6 1036.8 DAY 2 12 31 23 27 17 18 20 28 26 30 11 MIN. QNH PRESSURE IN HPA 1014.4 1008.9 1011.7 1012.4 1011.3 1006.1 1010.6 1012.9 1014.3 1019.1 1014.6 1017.1 1006.1 DAY 28 21 21 9 14 25 12 7 16 13 26 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 887.5 884.8 884.8 885.4 884.4 881.5 880.5 881.9 884.5 887.1 887.8 890.5 885.1 MAX. QFE PRESSURE IN HPA 899.9 893.0 891.6 893.7 889.7 887.3 884.3 886.5 890.0 893.2 896.5 898.5 899.9 DAY 2 12 1 23 27 17 18 19 28 26 30 11 MIN. QFE PRESSURE IN HPA 880.7 875.9 877.3 879.0 875.7 872.2 877.5 879.1 879.7 883.0 880.2 882.0 872.2 DAY 10 20 21 14 14 25 12 7 13 31 26 14 MEAN QNH PRESSURE IN HPA 1021.6 1018.6 1018.7 1019.3 1018.2 1015.0 1013.9 1015.4 1018.3 1021.3 1022.1 1025.1 1019.0 MAX. QNH PRESSURE IN HPA 1035.6 1027.9 1026.3 1028.6 1024.2 1021.5 1018.1 1020.6 1024.5 1028.1 1031.8 1034.0 1035.6 DAY 2 12 1 23 27 17 18 19 28 26 30 11 MIN. QNH PRESSURE IN HPA 1014.1 1008.7 1010.3 1012.2 1008.5 1004.5 1010.5 1012.3 1012.9 1016.6 1013.5 1015.5 1004.5 DAY 10 20 21 14 14 25 12 7 13 31 26 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 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 1999 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 888.3 885.4 885.4 885.8 884.5 881.2 880.4 882.1 884.9 887.7 888.7 891.4 885.5 MAX. QFE PRESSURE IN HPA 900.8 893.6 892.5 893.8 889.4 887.2 885.2 887.1 890.0 894.0 898.0 899.2 900.8 DAY 2 12 1 22 27 16 18 20 28 26 30 24 MIN. QFE PRESSURE IN HPA 881.6 877.2 876.7 879.0 875.3 871.0 877.5 879.3 879.8 884.0 881.3 883.1 871.0 DAY 9 20 21 14 14 25 12 6 13 31 1 14 MEAN QNH PRESSURE IN HPA 1022.5 1019.4 1019.3 1019.8 1018.3 1014.7 1013.7 1015.7 1018.7 1021.9 1023.0 1026.1 1019.4 MAX. QNH PRESSURE IN HPA 1036.6 1028.5 1027.3 1028.8 1023.8 1021.4 1019.1 1021.2 1024.5 1029.0 1033.5 1034.8 1036.6 DAY 2 12 1 22 27 16 18 20 28 26 30 24 MIN. QNH PRESSURE IN HPA 1015.1 1010.1 1009.6 1012.2 1008.0 1003.2 1010.5 1012.5 1013.1 1017.8 1014.7 1016.8 1003.2 DAY 9 20 21 14 14 25 12 6 13 31 1 14 MEAN QFF PRESSURE IN HPA 1025.9 1020.4 1020.0 1017.8 1013.2 1006.7 1005.4 1007.5 1013.6 1019.3 1024.4 1027.9 1016.8 MAX. QFF PRESSURE IN HPA 1044.8 1030.3 1028.8 1030.4 1020.2 1014.5 1012.2 1012.8 1022.9 1029.2 1038.9 1039.1 1044.8 DAY 2 12 1 23 22 8 13 20 28 26 30 1 MIN. QFF PRESSURE IN HPA 1016.9 1008.7 1006.9 1008.6 1001.3 994.2 1002.0 1003.1 1006.1 1013.1 1012.9 1016.5 994.2 DAY 17 20 21 14 14 25 5 7 13 12 1 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 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 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.4 4.2 8.9 19.5 23.4 25.4 27.9 27.6 23.1 14.3 6.4 5.4 15.8 MINIMUN AIR TEMPERATURE (C) -3.2 -2.1 1.0 9.1 11.9 14.0 16.5 15.2 12.0 6.1 -0.4 -0.1 6.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 1 0 0 0 0 0 1 DAYS WITH MINIMUM TEMP. <=-4 14 6 3 0 0 0 0 0 0 0 2 1 26 DAYS WITH FREEZING MIN.<= 0 22 21 15 0 0 0 0 0 0 0 19 18 95 TEMPERATURE RECORDS LOWEST(C) -10.4 -11.2 -6.8 2.4 7.2 6.2 12.2 10.2 7.6 0.6 -5.6 -5.4 -11.2 DAY 13 9 16 1 11 14 19 25 27 8 18 11 MAXIMUM AIR TEMPERATURE (C) 8.4 8.7 14.0 25.0 28.7 30.3 32.5 32.9 29.1 19.7 11.1 9.8 20.8 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 3 14 20 28 29 15 0 0 0 109 DAYS WITH MAXIMUM TEMP. <= 0 2 1 0 0 0 0 0 0 0 0 0 0 3 TEMPERATURE RECORDS HIGHEST(C) 19.8 16.2 26.6 32.6 34.4 36.4 34.8 35.6 33.8 26.2 18.0 16.2 36.4 DAY 2 24 25 10 27 24 8 2 1 12 4 21 DIF. BETWEEN (MAX.-MIN.) (C) 11.6 10.8 13.0 15.9 16.8 16.3 16.0 17.7 17.1 13.6 11.5 9.9 14.1 MEAN DAILY TEMP. (MDT) (C) 2.6 3.3 7.5 17.0 20.3 22.1 24.5 24.1 20.5 12.9 5.3 4.8 13.7 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 3.6 21.1 65.7 109.1 95.5 22.9 0.0 0.0 0.0 317.9 HEATING DEG. DAYS(BASE 18 0C) 477.9 426.3 326.8 59.5 6.3 9.1 0.0 0.0 8.6 158.7 379.9 408.9 2262.0 DEWPOINT (MEAN C) -6.0 -4.3 -1.9 4.5 2.8 3.5 4.8 3.4 6.1 3.8 -1.3 -1.1 1.2 MIXING RATIO (G/KG) 2.88 3.26 4.00 6.10 5.54 5.86 6.34 5.81 6.92 5.75 4.04 4.07 5.05 VAPOUR PRESSURE (HPA) 4.09 4.63 5.66 8.59 7.80 8.24 8.90 8.18 9.74 8.15 5.76 5.77 7.12 SATURATION DEF. (HPA) 4.44 4.02 6.81 15.52 22.20 25.99 29.70 30.25 20.19 9.03 4.30 3.47 14.66 RELATIVE HUMIDITY (MEAN %) 55 59 53 41 30 28 25 24 38 53 62 67 45 RELATIVE HUMIDITY (MAX. %) 74 82 77 68 54 49 42 44 63 79 84 85 67 RELATIVE HUMIDITY (MIN. %) 38 41 37 27 18 18 16 14 24 37 45 50 30 RELATIVE HUMIDITY (MEAN% 03UTC) 72 80 77 68 54 48 42 44 61 78 83 84 66 RELATIVE HUMIDITY (MEAN% 09UTC) 45 49 44 32 22 23 19 17 27 42 53 58 36 RELATIVE HUMIDITY (MEAN% 15UTC) 55 56 49 35 25 22 20 18 35 54 62 68 42 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 6.6 28.1 21.8 4.0 0.0 3.3 0.0 0.0 4.8 10.2 20.7 29.5 129.0 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 1 1 2 DAYS WITH PRECIPITATION >= 5 1 3 3 0 0 0 0 0 0 1 2 1 11 DAYS WITH PRECIPITATION >= 1 2 7 3 1 0 1 0 0 2 2 3 4 25 DAYS WITH PRECIPITATION 5 11 8 9 0 3 0 1 4 7 8 7 63 GREATEST DAILY PRECIPITATION 5.4 8.0 9.1 2.0 0.0 2.0 0.0 0.0 3.0 5.0 12.0 21.0 21.0 DAY 30 19 27 27 ** 13 ** ** 20 16 6 16 DAY WITH THUNDER STORM 0 0 0 1 0 0 0 1 1 1 0 0 4 DAYS WITH SNOW OR SLEET 2 3 2 0 0 0 0 0 0 0 1 1 9 DAYS WITH DUST 0 0 2 1 1 2 0 0 1 0 0 0 7 WIND DIRECTION (PREVAILING) 315 315 270 90 90 90 45 90 135 90 315 315 90 PREVAILING WIND SPEED(KNOTS) 12.4 11.9 14.5 6.9 8.9 9.6 7.0 7.0 9.9 7.3 10.1 11.5 8.0 PREVAILING WIND PERCENT 17.4 28.3 16.1 13.3 27.7 18.0 13.5 16.1 17.3 16.8 18.7 21.3 12.2 CALMS PERCENT OF WIND 54.2 53.1 63.9 67.3 40.6 47.3 50.3 48.4 48.0 43.9 54.0 45.2 51.3 NO. OF WIND OBSERVATION 155 145 155 150 155 150 155 155 150 155 150 155 1830 VECTOR WIND DIRECTION (MEAN) 303 301 279 75 107 100 20 75 120 58 317 309 341 VECTOR WIND MAGNITUDE(KNOTS) 3.4 5.3 2.3 0.7 4.3 1.7 1.7 1.3 1.8 1.1 2.0 3.7 0.8 WIND STEADINESES (MEAN %) 72.3 93.0 56.1 26.9 76.8 32.1 43.6 31.0 38.3 24.4 46.5 68.5 17.4 WIND SPEED (MEAN KNOTS) 4.7 5.7 4.1 2.6 5.6 5.3 3.9 4.2 4.7 4.5 4.3 5.4 4.6 FASTEST WIND DIRECTION 290 280 290 270 130 300 310 290 310 270 300 300 280 FASTEST WIND SPEED (KNOTS) 25 31 29 23 17 31 17 21 21 25 23 31 31 DAY 7 8 9 22 16 25 14 16 2 1 7 18 DAYS WITH SKY CLEAR (0-2)/8 18 15 12 11 23 28 31 28 25 18 14 11 234 DAYS WITH P.CLOUDY (3-6)/8 8 9 10 17 8 2 0 3 5 8 11 11 92 DAYS WITH CLOUDY (7-8)/8 5 5 9 2 0 0 0 0 0 5 5 9 40 DAYS WITH VISIBILITY =< 2 KM 0 1 2 0 0 0 0 0 0 0 4 5 12 DURATION OF SUNSHINE HOURS 191.0 197.8 199.0 255.1 311.9 350.0 378.1 361.2 289.2 232.7 176.0 149.6 3091.6 ======================================================================================================================= 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 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 886.3 886.6 885.8 884.8 883.8 883.2 883.0 883.8 885.7 890.1 891.8 888.5 886.1 MAX. QFE PRESSURE IN HPA 894.7 896.2 896.2 892.6 892.8 890.0 888.0 888.7 892.9 896.2 903.1 897.9 903.1 DAY-HOUR 31- 6 29- 6 27- 6 3- 6 5- 6 16- 6 26- 6 23- 6 29- 6 16- 6 17- 6 10- 6 MIN. QFE PRESSURE IN HPA 875.7 875.0 876.8 879.3 876.3 876.8 877.9 877.8 877.6 883.4 885.4 879.3 875.0 DAY-HOUR 21- 3 7-12 9-12 23-15 20-12 24-12 9-12 3-15 1-12 1-12 21-12 16- 3 MEAN QNH PRESSURE IN HPA 1020.4 1020.7 1019.8 1018.7 1017.5 1016.9 1016.6 1017.6 1019.6 1024.6 1026.5 1022.8 1020.1 MAX. QNH PRESSURE IN HPA 1029.8 1031.4 1031.4 1027.4 1027.6 1024.5 1022.2 1023.0 1027.7 1031.4 1039.2 1033.3 1039.2 DAY-HOUR 31- 6 29- 6 27- 6 3- 6 5- 6 16- 6 26- 6 23- 6 29- 6 16- 6 17- 6 10- 6 MIN. QNH PRESSURE IN HPA 1008.5 1007.7 1009.7 1012.5 1009.1 1009.7 1010.9 1010.8 1010.6 1017.1 1019.3 1012.5 1007.7 DAY-HOUR 21- 3 7-12 9-12 23-15 20-12 24-12 9-12 3-15 1-12 1-12 21-12 16- 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 886.6 886.7 886.4 885.7 885.2 884.2 883.9 884.8 886.4 890.7 892.1 888.9 886.8 MAX. QFE PRESSURE IN HPA 894.3 895.7 895.2 892.2 892.2 889.5 887.6 888.3 892.5 895.9 902.2 896.9 902.2 DAY 31 29 27 3 5 16 31 23 29 16 17 10 MIN. QFE PRESSURE IN HPA 875.7 876.1 878.0 881.1 880.2 879.9 879.6 880.0 879.8 884.7 886.2 879.3 875.7 DAY 21 7 25 22 27 25 11 31 1 18 7 16 MEAN QNH PRESSURE IN HPA 1020.7 1020.7 1020.4 1019.6 1019.1 1018.0 1017.6 1018.6 1020.5 1025.2 1026.8 1023.2 1020.9 MAX. QNH PRESSURE IN HPA 1029.3 1030.9 1030.3 1027.0 1027.0 1023.9 1021.8 1022.6 1027.3 1031.1 1038.2 1032.2 1038.2 DAY 31 29 27 3 5 16 31 23 29 16 17 10 MIN. QNH PRESSURE IN HPA 1008.5 1008.9 1011.0 1014.5 1013.5 1013.2 1012.8 1013.3 1013.1 1018.5 1020.2 1012.5 1008.5 DAY 21 7 25 22 27 25 11 31 1 18 7 16 MEAN QFF PRESSURE IN HPA 1024.3 1023.8 1021.1 1015.3 1012.7 1010.5 1009.0 1010.4 1014.6 1023.5 1028.9 1025.6 1018.3 MAX. QFF PRESSURE IN HPA 1035.9 1033.7 1032.7 1026.2 1020.8 1018.9 1013.6 1016.0 1021.8 1031.0 1042.5 1035.2 1042.5 DAY 31 10 16 3 5 14 26 19 30 16 17 10 MIN. QFF PRESSURE IN HPA 1009.7 1011.4 1005.7 1007.4 1005.7 1004.2 1002.9 1003.8 1004.7 1014.7 1021.4 1014.6 1002.9 DAY 21 7 25 22 27 25 11 4 1 1 7 16 ======================================================================================================================= 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 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 887.5 887.5 886.9 886.0 885.3 884.3 884.1 885.0 886.9 891.2 892.8 889.7 887.3 MAX. QFE PRESSURE IN HPA 894.7 896.2 896.2 892.6 892.8 890.0 888.0 888.7 892.9 896.2 903.1 897.9 903.1 DAY 31 29 27 3 5 16 26 23 29 16 17 10 MIN. QFE PRESSURE IN HPA 877.3 877.3 879.2 882.0 880.7 879.9 879.9 880.3 880.0 885.7 886.8 880.8 877.3 DAY 21 7 9 22 20 26 11 31 1 18 7 16 MEAN QNH PRESSURE IN HPA 1021.7 1021.7 1021.0 1020.1 1019.2 1018.2 1017.8 1018.9 1021.1 1025.9 1027.6 1024.1 1021.4 MAX. QNH PRESSURE IN HPA 1029.8 1031.4 1031.4 1027.4 1027.6 1024.5 1022.2 1023.0 1027.7 1031.4 1039.2 1033.3 1039.2 DAY 31 29 27 3 5 16 26 23 29 16 17 10 MIN. QNH PRESSURE IN HPA 1010.3 1010.3 1012.4 1015.5 1014.1 1013.2 1013.2 1013.6 1013.3 1019.7 1020.9 1014.2 1010.3 DAY 21 7 9 22 20 26 11 31 1 18 7 16 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 886.3 886.7 885.9 885.0 883.9 883.4 883.0 884.0 885.7 890.1 891.7 888.4 886.2 MAX. QFE PRESSURE IN HPA 893.1 896.2 895.5 891.8 892.2 889.2 887.0 887.8 891.0 895.8 902.2 896.3 902.2 DAY 31 29 27 3 5 16 30 23 29 16 17 10 MIN. QFE PRESSURE IN HPA 875.7 875.7 877.3 881.0 878.4 878.7 879.2 879.4 878.7 884.4 886.1 880.3 875.7 DAY 21 7 9 30 20 26 11 3 1 1 22 16 MEAN QNH PRESSURE IN HPA 1020.3 1020.8 1019.9 1018.9 1017.7 1017.1 1016.7 1017.8 1019.7 1024.6 1026.4 1022.6 1020.2 MAX. QNH PRESSURE IN HPA 1028.0 1031.4 1030.7 1026.5 1027.0 1023.6 1021.1 1022.0 1025.6 1031.0 1038.2 1031.5 1038.2 DAY 31 29 27 3 5 16 30 23 29 16 17 10 MIN. QNH PRESSURE IN HPA 1008.5 1008.5 1010.3 1014.4 1011.5 1011.8 1012.4 1012.6 1011.8 1018.2 1020.1 1013.6 1008.5 DAY 21 7 9 30 20 26 11 3 1 1 22 16 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 885.3 885.9 884.7 883.6 882.2 882.1 881.9 882.7 884.5 889.0 890.8 887.5 885.0 MAX. QFE PRESSURE IN HPA 891.0 896.0 894.4 890.3 891.0 887.9 886.6 886.6 890.4 894.8 901.1 895.8 901.1 DAY 31 29 27 3 5 2 30 23 29 16 17 10 MIN. QFE PRESSURE IN HPA 876.0 875.0 876.8 879.7 876.3 876.8 877.9 878.0 877.6 883.4 885.4 880.5 875.0 DAY 21 7 9 30 20 24 9 3 1 1 21 15 MEAN QNH PRESSURE IN HPA 1019.2 1019.8 1018.5 1017.4 1015.8 1015.7 1015.4 1016.3 1018.3 1023.3 1025.4 1021.7 1018.9 MAX. QNH PRESSURE IN HPA 1025.6 1031.2 1029.4 1024.8 1025.6 1022.1 1020.7 1020.7 1024.9 1029.9 1036.9 1031.0 1036.9 DAY 31 29 27 3 5 2 30 23 29 16 17 10 MIN. QNH PRESSURE IN HPA 1008.8 1007.7 1009.7 1012.9 1009.1 1009.7 1010.9 1011.0 1010.6 1017.1 1019.3 1013.8 1007.7 DAY 21 7 9 30 20 24 9 3 1 1 21 15 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 2000 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 886.1 886.5 885.2 883.8 882.3 882.0 882.1 882.7 884.9 889.7 891.5 888.3 885.4 MAX. QFE PRESSURE IN HPA 891.9 896.1 893.7 890.3 890.5 887.3 887.7 886.6 890.8 894.2 901.5 896.4 901.5 DAY 8 29 27 3 5 3 30 23 29 30 17 10 MIN. QFE PRESSURE IN HPA 877.3 877.4 878.2 879.3 876.3 876.8 878.0 877.8 878.4 885.3 885.8 881.0 876.3 DAY 21 7 9 23 27 24 10 3 1 13 21 15 MEAN QNH PRESSURE IN HPA 1020.1 1020.6 1019.1 1017.5 1015.9 1015.5 1015.6 1016.3 1018.7 1024.1 1026.2 1022.6 1019.4 MAX. QNH PRESSURE IN HPA 1026.6 1031.3 1028.6 1024.8 1025.1 1021.5 1021.9 1020.7 1025.4 1029.2 1037.4 1031.7 1037.4 DAY 8 29 27 3 5 3 30 23 29 30 17 10 MIN. QNH PRESSURE IN HPA 1010.3 1010.4 1011.3 1012.5 1009.1 1009.7 1011.0 1010.8 1011.5 1019.2 1019.8 1014.4 1009.1 DAY 21 7 9 23 27 24 10 3 1 13 21 15 MEAN QFF PRESSURE IN HPA 1023.8 1023.6 1019.6 1013.0 1009.5 1008.0 1007.1 1008.2 1012.8 1022.4 1028.2 1024.8 1016.8 MAX. QFF PRESSURE IN HPA 1034.6 1034.4 1030.4 1023.3 1020.2 1016.6 1013.3 1013.2 1021.3 1029.1 1042.0 1034.7 1042.0 DAY 13 29 27 3 5 13 30 18 29 16 17 10 MIN. QFF PRESSURE IN HPA 1011.6 1013.2 1008.8 1005.5 1001.1 1000.1 1001.5 1001.7 1003.2 1015.9 1021.3 1017.1 1000.1 DAY 21 7 25 10 27 24 11 3 1 13 6 15 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 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 0.6 5.2 11.1 18.6 24.6 27.7 27.8 27.5 22.2 15.8 10.9 6.3 16.5 MINIMUN AIR TEMPERATURE (C) -5.2 -1.7 3.1 8.6 13.2 15.7 17.5 15.4 10.3 6.3 3.6 1.1 7.3 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 1 1 1 0 0 0 3 DAYS WITH MINIMUM TEMP. <=-4 12 6 2 0 0 0 0 0 0 0 0 1 21 DAYS WITH FREEZING MIN.<= 0 29 19 6 0 0 0 0 0 0 3 3 10 70 TEMPERATURE RECORDS LOWEST(C) -20.0 -9.4 -5.4 4.8 9.0 11.6 10.2 11.4 1.0 -2.4 -1.6 -5.6 -20.0 DAY 30 1 12 3 2 3 30 15 21 12 21 23 MAXIMUM AIR TEMPERATURE (C) 5.0 10.3 16.4 23.6 29.4 32.1 32.0 32.2 27.9 21.3 16.1 10.5 21.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 14 23 26 27 12 0 0 0 102 DAYS WITH MAXIMUM TEMP. <= 0 8 0 0 0 0 0 0 0 0 0 0 0 8 TEMPERATURE RECORDS HIGHEST(C) 14.8 17.2 23.4 29.6 35.8 39.0 36.4 36.2 34.0 29.2 23.6 18.8 39.0 DAY 11 21 24 26 16 26 11 31 5 1 7 30 DIF. BETWEEN (MAX.-MIN.) (C) 10.2 12.0 13.3 15.0 16.2 16.4 14.5 16.8 17.6 15.0 12.5 9.4 14.1 MEAN DAILY TEMP. (MDT) (C) -0.1 4.3 9.8 16.1 21.3 23.9 24.7 23.8 19.1 13.8 9.8 5.8 14.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.8 31.0 90.4 115.5 87.5 21.8 0.0 0.0 0.0 347.0 HEATING DEG. DAYS(BASE 18 0C) 560.4 383.7 255.5 67.7 0.0 0.0 0.0 0.0 35.9 133.5 244.7 377.8 2059.2 DEWPOINT (MEAN C) -5.8 -5.8 -0.9 4.4 3.6 3.5 4.4 4.2 0.3 2.2 -0.5 -0.3 0.8 MIXING RATIO (G/KG) 2.93 2.95 4.19 6.04 5.88 5.92 6.21 6.08 4.86 5.37 4.31 4.31 4.92 VAPOUR PRESSURE (HPA) 4.17 4.18 5.92 8.50 8.26 8.31 8.71 8.56 6.86 7.60 6.11 6.12 6.94 SATURATION DEF. (HPA) 2.90 5.21 8.45 14.16 23.85 30.10 29.53 29.23 21.65 11.69 7.67 3.92 15.70 RELATIVE HUMIDITY (MEAN %) 67 51 49 43 30 24 25 25 27 46 51 67 42 RELATIVE HUMIDITY (MAX. %) 81 74 73 70 53 42 39 44 51 69 74 82 63 RELATIVE HUMIDITY (MIN. %) 52 33 33 28 17 16 18 16 16 31 34 52 29 RELATIVE HUMIDITY (MEAN% 03UTC) 79 74 73 70 52 42 39 43 50 68 72 80 62 RELATIVE HUMIDITY (MEAN% 09UTC) 59 41 40 35 21 18 19 18 19 35 41 58 34 RELATIVE HUMIDITY (MEAN% 15UTC) 69 46 43 36 25 21 23 23 23 44 50 71 40 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 21.6 9.0 31.4 9.4 5.4 0.1 2.0 2.0 0.2 7.9 10.6 42.3 141.9 DAYS WITH PRECIPITATION >=10 0 0 2 0 0 0 0 0 0 0 0 1 3 DAYS WITH PRECIPITATION >= 5 2 1 2 1 0 0 0 0 0 0 1 5 12 DAYS WITH PRECIPITATION >= 1 7 3 3 2 2 0 1 1 0 2 3 7 31 DAYS WITH PRECIPITATION 9 3 9 5 3 1 1 1 2 4 8 11 57 GREATEST DAILY PRECIPITATION 6.0 5.0 17.0 7.1 3.0 0.1 2.0 2.0 0.1 4.4 6.0 10.0 17.0 DAY 20 19 26 18 5 13 19 13 2 23 20 2 DAY WITH THUNDER STORM 0 0 0 3 2 0 0 0 1 0 1 1 8 DAYS WITH SNOW OR SLEET 4 0 1 0 0 0 0 0 0 0 2 4 11 DAYS WITH DUST 0 0 0 1 0 2 0 4 1 0 0 0 8 WIND DIRECTION (PREVAILING) 90 315 315 90 90 90 90 90 90 90 270 270 90 PREVAILING WIND SPEED(KNOTS) 6.5 13.2 16.0 9.1 8.8 11.2 12.9 10.2 10.4 9.6 11.8 9.5 9.7 PREVAILING WIND PERCENT 24.5 23.6 21.3 26.0 31.0 36.0 36.1 34.2 40.0 30.3 24.7 22.6 24.5 CALMS PERCENT OF WIND 29.7 31.4 45.2 25.3 16.8 3.3 0.0 0.0 0.0 8.4 26.0 30.3 18.0 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 324 312 305 84 90 97 92 85 97 88 296 296 58 VECTOR WIND MAGNITUDE(KNOTS) 1.7 4.1 4.5 2.4 3.0 4.9 7.2 4.4 4.5 2.8 4.1 3.3 1.5 WIND STEADINESES (MEAN %) 29.8 56.2 58.4 33.8 38.5 47.1 61.5 47.3 46.4 32.9 60.3 55.9 18.3 WIND SPEED (MEAN KNOTS) 5.7 7.3 7.7 7.1 7.8 10.4 11.7 9.3 9.7 8.5 6.8 5.9 8.2 FASTEST WIND DIRECTION 290 310 300 290 270 280 120 290 300 290 290 290 290 FASTEST WIND SPEED (KNOTS) 29 31 33 31 25 27 21 35 23 27 31 29 35 DAY 1 19 26 13 8 1 5 27 1 26 19 21 DAYS WITH SKY CLEAR (0-2)/8 11 17 12 14 24 25 28 29 27 22 14 9 232 DAYS WITH P.CLOUDY (3-6)/8 12 10 15 13 6 5 3 1 3 8 13 17 106 DAYS WITH CLOUDY (7-8)/8 8 1 4 3 1 0 0 1 0 1 3 5 27 DAYS WITH VISIBILITY =< 2 KM 8 1 2 0 0 0 0 0 0 2 5 5 23 DURATION OF SUNSHINE HOURS 153.6 214.0 209.6 245.2 316.3 337.6 359.4 338.0 297.8 231.6 170.5 127.5 3001.1 ======================================================================================================================= 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 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 890.0 886.5 885.7 884.9 883.1 881.9 882.4 884.1 886.5 888.9 888.4 889.9 886.0 MAX. QFE PRESSURE IN HPA 896.5 899.6 897.8 896.8 889.4 891.3 887.2 889.3 895.0 898.4 897.0 897.2 899.6 DAY-HOUR 26- 6 10- 6 2- 6 1- 6 19- 3 2- 3 29- 6 6- 3 22- 6 10- 6 20- 6 10- 6 MIN. QFE PRESSURE IN HPA 883.8 871.5 874.9 876.6 873.7 874.8 875.3 875.3 878.6 881.1 877.7 881.5 871.5 DAY-HOUR 1- 9 21-15 26- 3 13- 3 30-12 18-12 18-12 31-12 5-12 31-12 17-12 5-12 MEAN QNH PRESSURE IN HPA 1024.4 1020.6 1019.7 1018.8 1016.7 1015.4 1016.0 1017.8 1020.5 1023.3 1022.7 1024.4 1020.0 MAX. QNH PRESSURE IN HPA 1031.8 1035.2 1033.2 1032.1 1023.8 1025.9 1021.4 1023.7 1030.1 1033.9 1032.3 1032.6 1035.2 DAY-HOUR 26- 6 10- 6 2- 6 1- 6 19- 3 2- 3 29- 6 6- 3 22- 6 10- 6 20- 6 10- 6 MIN. QNH PRESSURE IN HPA 1017.5 1003.7 1007.6 1009.5 1006.2 1007.4 1008.0 1008.0 1011.7 1014.5 1010.7 1015.0 1003.7 DAY-HOUR 1- 9 21-15 26- 3 13- 3 30-12 18-12 18-12 31-12 5-12 31-12 17-12 5-12 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 890.0 886.7 886.3 886.0 884.5 883.1 883.5 885.3 887.4 889.7 888.7 890.0 886.8 MAX. QFE PRESSURE IN HPA 895.2 898.8 897.0 896.2 889.4 891.3 886.8 889.3 894.0 898.0 895.3 895.9 898.8 DAY 26 10 2 5 19 2 29 6 22 11 20 10 MIN. QFE PRESSURE IN HPA 884.4 874.4 874.9 876.6 876.6 876.9 878.2 879.4 880.4 883.4 878.2 884.3 874.4 DAY 1 21 26 13 9 18 18 31 1 25 19 5 MEAN QNH PRESSURE IN HPA 1024.4 1020.8 1020.4 1020.1 1018.3 1016.7 1017.2 1019.2 1021.6 1024.2 1023.1 1024.5 1020.9 MAX. QNH PRESSURE IN HPA 1030.3 1034.4 1032.3 1031.4 1023.8 1025.9 1020.9 1023.7 1029.0 1033.5 1030.4 1031.1 1034.4 DAY 26 10 2 5 19 2 29 6 22 11 20 10 MIN. QNH PRESSURE IN HPA 1018.2 1007.0 1007.6 1009.5 1009.5 1009.8 1011.3 1012.6 1013.7 1017.1 1011.3 1018.1 1007.0 DAY 1 21 26 13 9 18 18 31 1 25 19 5 MEAN QFF PRESSURE IN HPA 1029.4 1023.6 1019.9 1015.8 1011.2 1008.2 1008.5 1010.9 1016.2 1021.7 1022.9 1026.3 1017.9 MAX. QFF PRESSURE IN HPA 1041.5 1038.2 1033.7 1030.4 1017.7 1019.9 1013.3 1016.2 1028.4 1035.1 1034.6 1034.7 1041.5 DAY 26 11 12 2 19 2 30 13 22 11 20 22 MIN. QFF PRESSURE IN HPA 1019.7 1007.6 1004.8 1003.6 1002.9 1001.3 1003.2 1004.3 1003.8 1014.2 1007.5 1017.5 1001.3 DAY 1 21 26 13 9 7 11 31 1 7 19 21 ======================================================================================================================= 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 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 890.9 887.4 887.0 886.3 884.4 882.9 883.5 885.4 887.7 890.2 889.5 890.9 887.2 MAX. QFE PRESSURE IN HPA 896.5 899.6 897.8 896.8 889.1 891.1 887.2 889.1 895.0 898.4 897.0 897.2 899.6 DAY 26 10 2 1 19 2 29 5 22 10 20 10 MIN. QFE PRESSURE IN HPA 884.8 874.4 877.2 878.8 877.1 876.6 877.7 879.0 881.1 884.6 880.5 884.3 874.4 DAY 1 21 26 13 9 18 18 31 1 25 19 5 MEAN QNH PRESSURE IN HPA 1025.5 1021.6 1021.2 1020.4 1018.2 1016.6 1017.2 1019.3 1021.9 1024.8 1023.9 1025.5 1021.3 MAX. QNH PRESSURE IN HPA 1031.8 1035.2 1033.2 1032.1 1023.5 1025.7 1021.4 1023.5 1030.1 1033.9 1032.3 1032.6 1035.2 DAY 26 10 2 1 19 2 29 5 22 10 20 10 MIN. QNH PRESSURE IN HPA 1018.7 1007.0 1010.1 1011.9 1010.0 1009.5 1010.7 1012.2 1014.5 1018.4 1013.8 1018.1 1007.0 DAY 1 21 26 13 9 18 18 31 1 25 19 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 890.0 886.7 885.9 884.9 883.2 881.7 882.3 884.1 886.3 888.5 888.0 889.6 885.9 MAX. QFE PRESSURE IN HPA 896.0 898.4 895.3 896.4 887.4 890.2 886.0 888.1 893.5 897.5 895.4 895.9 898.4 DAY 26 10 2 1 19 2 29 5 22 10 20 10 MIN. QFE PRESSURE IN HPA 883.8 872.3 876.1 878.7 875.9 875.6 876.2 876.9 879.8 882.5 879.2 882.3 872.3 DAY 1 21 26 13 30 18 18 31 5 31 17 5 MEAN QNH PRESSURE IN HPA 1024.5 1020.8 1019.9 1018.8 1016.8 1015.2 1015.9 1017.8 1020.3 1022.9 1022.3 1024.1 1019.9 MAX. QNH PRESSURE IN HPA 1031.2 1033.9 1030.4 1031.7 1021.6 1024.7 1020.0 1022.4 1028.4 1032.9 1030.5 1031.1 1033.9 DAY 26 10 2 1 19 2 29 5 22 10 20 10 MIN. QNH PRESSURE IN HPA 1017.5 1004.6 1008.9 1011.8 1008.7 1008.3 1009.0 1009.8 1013.1 1016.1 1012.4 1015.9 1004.6 DAY 1 21 26 13 30 18 18 31 5 31 17 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 889.2 885.6 884.5 883.4 881.6 880.6 881.4 882.8 885.2 887.7 887.4 889.1 884.9 MAX. QFE PRESSURE IN HPA 895.0 897.4 892.9 895.3 886.6 888.5 885.3 887.0 892.0 896.7 894.3 895.0 897.4 DAY 26 10 1 1 19 2 30 5 22 10 20 10 MIN. QFE PRESSURE IN HPA 883.8 871.7 875.8 878.0 873.7 874.8 875.3 875.3 878.6 881.1 877.7 881.5 871.7 DAY 1 21 24 12 30 18 18 31 5 31 17 5 MEAN QNH PRESSURE IN HPA 1023.6 1019.6 1018.3 1017.1 1015.1 1013.9 1014.8 1016.4 1019.1 1022.0 1021.6 1023.5 1018.8 MAX. QNH PRESSURE IN HPA 1030.1 1032.8 1027.7 1030.4 1020.7 1022.8 1019.2 1021.1 1026.7 1032.0 1029.3 1030.1 1032.8 DAY 26 10 1 1 19 2 30 5 22 10 20 10 MIN. QNH PRESSURE IN HPA 1017.5 1004.0 1008.6 1011.0 1006.2 1007.4 1008.0 1008.0 1011.7 1014.5 1010.7 1015.0 1004.0 DAY 1 21 24 12 30 18 18 31 5 31 17 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 2001 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 889.8 886.3 885.0 884.1 881.9 881.0 881.6 883.0 885.8 888.4 888.3 890.0 885.4 MAX. QFE PRESSURE IN HPA 895.2 898.3 894.0 895.5 886.9 888.3 885.2 887.1 892.1 898.3 894.1 895.5 898.3 DAY 25 10 1 1 19 2 29 5 22 10 2 9 MIN. QFE PRESSURE IN HPA 884.6 871.5 876.4 877.5 875.0 875.6 875.8 876.0 879.8 882.0 878.7 882.5 871.5 DAY 4 21 26 12 30 6 18 31 5 31 17 5 MEAN QNH PRESSURE IN HPA 1024.3 1020.4 1018.9 1017.8 1015.4 1014.4 1015.0 1016.6 1019.8 1022.7 1022.6 1024.5 1019.4 MAX. QNH PRESSURE IN HPA 1030.3 1033.8 1029.0 1030.7 1021.0 1022.6 1019.1 1021.2 1026.8 1033.8 1029.1 1030.7 1033.8 DAY 25 10 1 1 19 2 29 5 22 10 2 9 MIN. QNH PRESSURE IN HPA 1018.4 1003.7 1009.2 1010.5 1007.7 1008.3 1008.6 1008.8 1013.1 1015.5 1011.8 1016.1 1003.7 DAY 4 21 26 12 30 6 18 31 5 31 17 5 MEAN QFF PRESSURE IN HPA 1029.3 1022.9 1018.4 1013.5 1008.3 1006.0 1006.4 1008.3 1014.6 1020.2 1022.4 1026.3 1016.4 MAX. QFF PRESSURE IN HPA 1041.3 1038.0 1034.0 1030.4 1015.6 1016.2 1011.3 1014.1 1026.0 1035.4 1033.1 1036.4 1041.3 DAY 26 10 11 1 19 2 30 12 22 27 20 3 MIN. QFF PRESSURE IN HPA 1020.1 1004.2 1004.4 1004.9 999.4 999.7 1000.7 1000.0 1005.1 1012.7 1009.6 1017.4 999.4 DAY 1 21 24 12 30 6 11 31 5 7 17 20 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 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 3.6 5.7 12.0 14.5 19.4 26.2 28.1 28.2 23.2 18.9 9.9 1.4 15.9 MINIMUN AIR TEMPERATURE (C) -1.2 -0.6 2.9 7.8 11.1 15.3 17.3 16.3 9.9 8.0 3.3 -3.7 7.2 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 5 2 0 0 0 0 7 DAYS WITH MINIMUM TEMP. <=-4 7 3 3 0 0 0 0 0 0 0 0 14 27 DAYS WITH FREEZING MIN.<= 0 20 15 11 1 0 0 0 0 0 0 9 28 84 TEMPERATURE RECORDS LOWEST(C) -8.0 -5.6 -8.6 0.0 6.0 10.6 10.0 8.0 6.2 2.6 -2.6 -12.2 -12.2 DAY 16 2 11 1 15 18 23 15 8 24 26 5 MAXIMUM AIR TEMPERATURE (C) 7.5 10.7 17.5 18.4 23.5 31.1 32.4 33.2 29.3 25.1 14.7 5.5 20.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 1 6 17 25 27 8 4 0 0 88 DAYS WITH MAXIMUM TEMP. <= 0 1 1 0 0 0 0 0 0 0 0 0 4 6 TEMPERATURE RECORDS HIGHEST(C) 18.2 20.0 27.6 30.8 34.0 36.8 37.8 39.0 36.2 32.4 21.8 14.2 39.0 DAY 7 27 27 20 25 13 19 10 12 3 11 8 DIF. BETWEEN (MAX.-MIN.) (C) 8.7 11.3 14.6 10.6 12.4 15.8 15.1 16.9 19.4 17.1 11.4 9.2 13.5 MEAN DAILY TEMP. (MDT) (C) 3.2 5.1 10.2 13.1 17.3 23.2 24.8 24.8 19.6 16.6 9.0 0.9 14.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 2.0 8.6 72.4 120.3 121.4 11.1 1.5 0.0 0.0 337.3 HEATING DEG. DAYS(BASE 18 0C) 459.6 361.6 243.1 158.1 54.2 0.0 0.0 0.0 2.6 64.6 270.1 530.4 2144.3 DEWPOINT (MEAN C) -3.7 -3.6 -2.6 5.9 7.5 4.5 4.1 3.1 -0.1 3.5 1.3 -5.2 1.2 MIXING RATIO (G/KG) 3.42 3.43 3.90 6.75 7.56 6.27 6.09 5.77 4.52 5.80 5.00 3.10 5.13 VAPOUR PRESSURE (HPA) 4.86 4.86 5.51 9.48 10.61 8.79 8.56 8.11 6.39 8.20 7.09 4.40 7.24 SATURATION DEF. (HPA) 3.63 5.10 10.00 7.99 13.13 26.49 30.70 31.65 23.73 15.28 5.79 2.81 14.69 RELATIVE HUMIDITY (MEAN %) 63 57 44 61 52 28 24 23 25 42 61 67 46 RELATIVE HUMIDITY (MAX. %) 80 81 70 83 74 48 40 42 45 64 80 83 66 RELATIVE HUMIDITY (MIN. %) 48 39 28 47 39 17 17 14 15 26 44 52 32 RELATIVE HUMIDITY (MEAN% 03UTC) 76 79 67 81 72 48 40 42 45 62 79 78 64 RELATIVE HUMIDITY (MEAN% 09UTC) 53 45 35 52 44 21 19 16 18 30 48 58 37 RELATIVE HUMIDITY (MEAN% 15UTC) 65 56 41 58 48 24 21 20 20 45 65 72 45 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 22.4 5.4 26.0 48.3 47.6 0.1 0.2 0.0 0.0 3.6 16.7 13.7 184.0 DAYS WITH PRECIPITATION >=10 1 0 1 0 2 0 0 0 0 0 0 0 4 DAYS WITH PRECIPITATION >= 5 2 0 2 4 5 0 0 0 0 0 2 0 15 DAYS WITH PRECIPITATION >= 1 2 2 4 10 9 0 0 0 0 1 4 6 38 DAYS WITH PRECIPITATION 8 10 11 19 13 2 1 1 0 3 5 13 86 GREATEST DAILY PRECIPITATION 14.0 2.0 12.0 9.0 15.0 0.1 0.2 0.0 0.0 2.6 6.4 3.7 15.0 DAY 9 21 23 22 5 3 1 ** ** 23 14 11 DAY WITH THUNDER STORM 0 0 2 5 5 3 0 0 0 0 0 0 15 DAYS WITH SNOW OR SLEET 3 6 2 0 0 0 0 0 0 0 0 7 18 DAYS WITH DUST 0 0 1 0 1 3 0 1 1 1 3 0 11 WIND DIRECTION (PREVAILING) 270 270 270 90 90 90 315 90 90 90 270 270 90 PREVAILING WIND SPEED(KNOTS) 9.0 14.1 13.8 6.9 9.2 8.9 7.9 8.6 7.9 7.0 8.5 11.6 7.9 PREVAILING WIND PERCENT 28.4 32.1 27.1 16.0 36.8 29.3 18.1 31.6 39.3 21.9 22.0 27.7 21.5 CALMS PERCENT OF WIND 31.0 15.7 20.6 19.3 18.1 18.0 19.4 12.9 22.7 28.4 34.0 31.0 22.6 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 291 286 277 324 86 3 48 93 93 67 305 296 328 VECTOR WIND MAGNITUDE(KNOTS) 3.0 6.2 3.5 1.9 2.8 1.2 0.8 3.7 3.9 0.9 1.2 3.1 0.9 WIND STEADINESES (MEAN %) 50.0 63.3 41.7 26.4 37.8 13.6 12.1 50.7 70.9 18.4 24.0 49.2 12.9 WIND SPEED (MEAN KNOTS) 6.0 9.8 8.4 7.2 7.4 8.8 6.6 7.3 5.5 4.9 5.0 6.3 7.0 FASTEST WIND DIRECTION 290 240 290 300 290 310 290 270 310 310 280 300 240 FASTEST WIND SPEED (KNOTS) 27 39 35 35 31 33 23 25 27 27 27 29 39 DAY 27 27 10 26 26 7 1 11 20 10 7 22 DAYS WITH SKY CLEAR (0-2)/8 13 12 15 5 17 27 28 31 30 26 13 12 229 DAYS WITH P.CLOUDY (3-6)/8 13 10 13 17 10 3 3 0 0 4 13 9 95 DAYS WITH CLOUDY (7-8)/8 5 6 3 8 4 0 0 0 0 1 4 10 41 DAYS WITH VISIBILITY =< 2 KM 2 1 2 1 1 0 0 0 0 2 5 6 20 DURATION OF SUNSHINE HOURS 146.0 162.0 206.2 158.9 266.2 326.8 358.0 362.2 325.2 259.2 157.9 141.1 2869.7 ======================================================================================================================= 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 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 888.3 886.8 885.7 883.3 884.4 882.0 883.2 882.6 887.3 888.8 890.5 888.3 885.9 MAX. QFE PRESSURE IN HPA 896.2 899.2 900.0 892.4 892.1 889.6 889.4 889.4 893.2 894.0 898.9 901.8 901.8 DAY-HOUR 26- 6 19- 6 11- 6 1- 6 17- 6 25- 6 3- 6 31- 6 21- 6 10- 6 18- 6 3-15 MIN. QFE PRESSURE IN HPA 877.6 877.5 875.6 870.2 877.2 872.2 876.7 875.6 881.8 882.2 881.0 875.1 870.2 DAY-HOUR 8-12 25-12 28-12 4-12 12-12 21-12 24-12 17-12 18-12 21-12 12-12 22- 3 MEAN QNH PRESSURE IN HPA 1022.6 1020.9 1019.7 1017.0 1018.3 1015.5 1016.8 1016.2 1021.4 1023.1 1025.1 1022.6 1019.9 MAX. QNH PRESSURE IN HPA 1031.4 1034.8 1035.7 1027.2 1026.8 1024.0 1023.8 1023.8 1028.1 1029.0 1034.5 1037.7 1037.7 DAY-HOUR 26- 6 19- 6 11- 6 1- 6 17- 6 25- 6 3- 6 31- 6 21- 6 10- 6 18- 6 3-15 MIN. QNH PRESSURE IN HPA 1010.6 1010.5 1008.3 1002.3 1010.1 1004.5 1009.6 1008.3 1015.3 1015.7 1014.4 1007.8 1002.3 DAY-HOUR 8-12 25-12 28-12 4-12 12-12 21-12 24-12 17-12 18-12 21-12 12-12 22- 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 888.2 887.1 886.3 883.8 885.3 883.2 884.0 883.6 888.1 889.5 890.9 888.2 886.5 MAX. QFE PRESSURE IN HPA 895.1 897.7 899.7 891.2 891.4 889.2 889.0 889.2 892.9 893.2 897.7 900.7 900.7 DAY 26 19 11 1 17 25 3 31 21 11 18 4 MIN. QFE PRESSURE IN HPA 878.8 878.0 877.0 871.3 879.3 874.9 878.7 878.6 883.9 883.9 882.7 875.1 871.3 DAY 8 27 29 4 12 21 25 17 18 22 13 22 MEAN QNH PRESSURE IN HPA 1022.5 1021.2 1020.4 1017.6 1019.2 1016.9 1017.7 1017.3 1022.4 1023.9 1025.5 1022.5 1020.6 MAX. QNH PRESSURE IN HPA 1030.2 1033.1 1035.4 1025.8 1026.1 1023.6 1023.4 1023.6 1027.7 1028.1 1033.1 1036.5 1036.5 DAY 26 19 11 1 17 25 3 31 21 11 18 4 MIN. QNH PRESSURE IN HPA 1011.9 1011.0 1009.9 1003.5 1012.5 1007.6 1011.8 1011.7 1017.7 1017.7 1016.3 1007.8 1003.5 DAY 8 27 29 4 12 21 25 17 18 22 13 22 MEAN QFF PRESSURE IN HPA 1025.6 1023.5 1019.8 1014.9 1014.2 1008.8 1009.0 1008.8 1016.9 1020.5 1025.9 1027.0 1017.9 MAX. QFF PRESSURE IN HPA 1034.8 1037.6 1041.6 1026.9 1022.2 1016.0 1016.5 1016.8 1022.3 1024.2 1036.4 1046.6 1046.6 DAY 17 19 11 1 17 25 3 31 21 23 18 4 MIN. QFF PRESSURE IN HPA 1009.2 1009.8 1004.1 1000.8 1005.2 997.9 1003.3 1001.4 1011.5 1014.7 1013.4 1008.6 997.9 DAY 8 27 29 4 12 21 25 9 12 22 13 22 ======================================================================================================================= 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 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 889.3 887.8 886.8 884.2 885.4 883.2 884.2 883.7 888.6 890.1 891.6 889.3 887.0 MAX. QFE PRESSURE IN HPA 896.2 899.2 900.0 892.4 892.1 889.6 889.4 889.4 893.2 894.0 898.9 901.3 901.3 DAY 26 19 11 1 17 25 3 31 21 10 18 4 MIN. QFE PRESSURE IN HPA 879.2 879.4 877.9 870.8 879.7 874.8 878.7 878.2 884.3 884.8 882.9 876.1 870.8 DAY 8 27 29 4 12 21 25 17 18 22 12 22 MEAN QNH PRESSURE IN HPA 1023.7 1022.0 1020.9 1018.0 1019.3 1016.8 1018.0 1017.4 1022.9 1024.6 1026.3 1023.8 1021.1 MAX. QNH PRESSURE IN HPA 1031.4 1034.8 1035.7 1027.2 1026.8 1024.0 1023.8 1023.8 1028.1 1029.0 1034.5 1037.2 1037.2 DAY 26 19 11 1 17 25 3 31 21 10 18 4 MIN. QNH PRESSURE IN HPA 1012.4 1012.6 1010.9 1003.0 1012.9 1007.4 1011.8 1011.3 1018.1 1018.7 1016.5 1008.9 1003.0 DAY 8 27 29 4 12 21 25 17 18 22 12 22 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 888.0 886.7 885.6 883.3 884.5 882.1 883.3 882.6 887.2 888.5 890.2 888.0 885.8 MAX. QFE PRESSURE IN HPA 894.9 898.0 898.0 892.2 891.2 888.2 888.4 888.2 892.1 892.6 897.6 900.5 900.5 DAY 26 19 11 1 17 25 3 31 21 10 18 3 MIN. QFE PRESSURE IN HPA 877.8 877.8 878.1 870.8 878.2 873.3 877.8 877.0 882.7 883.4 881.5 875.9 870.8 DAY 8 27 23 4 12 21 24 17 18 22 12 22 MEAN QNH PRESSURE IN HPA 1022.2 1020.7 1019.5 1017.0 1018.3 1015.6 1016.9 1016.2 1021.3 1022.8 1024.7 1022.2 1019.8 MAX. QNH PRESSURE IN HPA 1030.0 1033.5 1033.5 1027.0 1025.8 1022.5 1022.7 1022.5 1026.8 1027.4 1033.0 1036.3 1036.3 DAY 26 19 11 1 17 25 3 31 21 10 18 3 MIN. QNH PRESSURE IN HPA 1010.8 1010.8 1011.1 1003.0 1011.3 1005.8 1010.8 1009.9 1016.3 1017.1 1015.0 1008.7 1003.0 DAY 8 27 23 4 12 21 24 17 18 22 12 22 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 887.5 885.8 884.6 882.6 883.4 880.7 882.2 881.3 886.1 887.5 889.5 887.6 884.9 MAX. QFE PRESSURE IN HPA 894.2 896.1 896.0 891.2 890.2 886.8 886.9 886.4 890.9 892.0 896.9 900.6 900.6 DAY 17 19 10 1 17 25 3 30 21 10 18 3 MIN. QFE PRESSURE IN HPA 877.6 877.5 875.6 870.2 877.2 872.2 876.7 875.6 881.8 882.2 881.0 877.6 870.2 DAY 8 25 28 4 12 21 24 17 18 21 12 22 MEAN QNH PRESSURE IN HPA 1021.7 1019.7 1018.5 1016.2 1017.1 1014.0 1015.7 1014.8 1020.1 1021.7 1024.0 1021.8 1018.8 MAX. QNH PRESSURE IN HPA 1029.2 1031.3 1031.2 1025.8 1024.7 1020.9 1021.0 1020.5 1025.5 1026.7 1032.2 1036.4 1036.4 DAY 17 19 10 1 17 25 3 30 21 10 18 3 MIN. QNH PRESSURE IN HPA 1010.6 1010.5 1008.3 1002.3 1010.1 1004.5 1009.6 1008.3 1015.3 1015.7 1014.4 1010.6 1002.3 DAY 8 25 28 4 12 21 24 17 18 21 12 22 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 2002 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 888.5 886.9 885.1 882.9 883.8 880.9 882.4 881.7 886.5 888.4 890.4 888.5 885.5 MAX. QFE PRESSURE IN HPA 895.0 896.1 898.0 891.0 890.2 886.8 886.9 887.0 890.9 892.8 897.2 901.8 901.8 DAY 17 19 10 1 17 24 2 31 21 10 18 3 MIN. QFE PRESSURE IN HPA 880.2 877.6 876.9 871.1 878.0 872.8 876.7 876.1 882.7 882.8 882.3 878.2 871.1 DAY 8 25 28 4 12 20 24 17 10 21 12 21 MEAN QNH PRESSURE IN HPA 1022.8 1021.0 1019.0 1016.5 1017.5 1014.3 1016.0 1015.1 1020.6 1022.7 1024.9 1022.8 1019.4 MAX. QNH PRESSURE IN HPA 1030.1 1031.3 1033.5 1025.6 1024.7 1020.9 1021.0 1021.1 1025.5 1027.6 1032.6 1037.7 1037.7 DAY 17 19 10 1 17 24 2 31 21 10 18 3 MIN. QNH PRESSURE IN HPA 1013.5 1010.6 1009.8 1003.3 1011.0 1005.2 1009.6 1008.9 1016.3 1016.4 1015.9 1011.3 1003.3 DAY 8 25 28 4 12 20 24 17 10 21 12 21 MEAN QFF PRESSURE IN HPA 1026.0 1023.3 1018.4 1013.8 1012.4 1006.4 1007.3 1006.8 1015.1 1019.2 1025.3 1027.4 1016.8 MAX. QFF PRESSURE IN HPA 1036.5 1035.9 1036.6 1025.2 1021.6 1014.0 1013.8 1014.5 1020.9 1025.0 1036.0 1047.2 1047.2 DAY 17 19 10 1 17 24 3 31 30 23 18 3 MIN. QFF PRESSURE IN HPA 1011.8 1010.2 1005.1 1000.7 1003.6 996.6 1000.7 999.7 1010.1 1014.0 1014.4 1013.9 996.6 DAY 8 25 28 4 11 20 25 9 12 21 12 21 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 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.7 5.0 7.8 14.5 17.8 24.1 29.0 27.1 21.9 18.5 8.3 3.7 15.0 MINIMUN AIR TEMPERATURE (C) -3.2 -0.1 1.8 7.9 9.3 13.7 17.7 15.6 10.7 6.8 1.6 -1.5 6.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 3 1 0 0 0 0 4 DAYS WITH MINIMUM TEMP. <=-4 10 3 3 0 0 0 0 0 0 0 1 8 25 DAYS WITH FREEZING MIN.<= 0 23 12 9 3 0 0 0 0 0 0 13 14 74 TEMPERATURE RECORDS LOWEST(C) -13.0 -7.8 -8.0 -1.6 1.4 6.6 13.0 11.0 1.2 1.4 -4.0 -17.2 -17.2 DAY 26 19 3 19 3 8 25 31 29 14 24 13 MAXIMUM AIR TEMPERATURE (C) 7.2 8.7 12.2 18.7 22.1 28.5 33.5 31.8 26.9 24.9 13.1 7.6 19.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 2 0 12 30 30 12 0 0 0 86 DAYS WITH MAXIMUM TEMP. <= 0 4 2 0 0 0 0 0 0 0 0 0 3 9 TEMPERATURE RECORDS HIGHEST(C) 16.4 17.6 23.4 31.2 29.0 33.6 38.4 34.8 33.0 29.6 22.4 17.0 38.4 DAY 14 4 21 7 17 23 19 15 8 30 11 19 DIF. BETWEEN (MAX.-MIN.) (C) 10.4 8.8 10.4 10.8 12.8 14.8 15.8 16.2 16.2 18.1 11.5 9.1 12.9 MEAN DAILY TEMP. (MDT) (C) 2.0 4.3 7.0 13.3 15.7 21.1 25.6 23.7 18.8 15.8 7.3 3.0 13.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 4.0 0.4 29.6 141.9 84.6 18.8 0.0 0.0 0.0 279.3 HEATING DEG. DAYS(BASE 18 0C) 496.7 383.4 340.6 163.3 91.5 7.8 0.0 0.0 41.5 74.7 320.1 463.5 2383.1 DEWPOINT (MEAN C) -5.0 -1.3 -0.2 5.2 5.8 7.3 7.9 5.2 3.5 0.2 -0.7 -2.7 2.1 MIXING RATIO (G/KG) 3.04 4.03 4.49 6.54 6.72 7.48 7.84 6.49 5.98 4.62 4.24 3.68 5.43 VAPOUR PRESSURE (HPA) 4.32 5.69 6.34 9.21 9.46 10.48 10.97 9.13 8.42 6.55 6.03 5.23 7.65 SATURATION DEF. (HPA) 3.77 3.46 5.13 9.21 11.96 20.60 30.13 27.64 19.49 16.00 5.67 3.25 13.03 RELATIVE HUMIDITY (MEAN %) 63 68 62 61 49 38 29 27 34 33 58 66 49 RELATIVE HUMIDITY (MAX. %) 78 85 86 83 71 59 48 46 55 57 79 80 69 RELATIVE HUMIDITY (MIN. %) 50 53 45 47 35 26 20 18 22 20 41 54 36 RELATIVE HUMIDITY (MEAN% 03UTC) 78 84 85 83 69 59 48 46 55 56 78 79 68 RELATIVE HUMIDITY (MEAN% 09UTC) 54 58 53 52 39 31 22 20 26 23 45 57 40 RELATIVE HUMIDITY (MEAN% 15UTC) 67 69 58 57 48 33 26 25 32 35 62 69 48 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 39.8 27.8 44.3 73.5 66.4 2.3 0.0 0.3 0.0 1.2 29.5 28.3 313.4 DAYS WITH PRECIPITATION >=10 3 0 2 3 2 0 0 0 0 0 1 1 12 DAYS WITH PRECIPITATION >= 5 3 1 3 5 2 0 0 0 0 0 1 2 17 DAYS WITH PRECIPITATION >= 1 4 9 8 9 5 1 0 0 0 0 3 5 44 DAYS WITH PRECIPITATION 5 14 17 15 12 5 0 3 0 3 5 8 87 GREATEST DAILY PRECIPITATION 15.0 8.0 13.0 21.6 34.0 2.1 0.0 0.2 0.0 0.8 23.0 13.0 34.0 DAY 20 6 27 15 24 2 ** 24 ** 6 15 11 DAY WITH THUNDER STORM 0 0 1 4 5 2 0 0 0 2 1 0 15 DAYS WITH SNOW OR SLEET 4 5 5 2 0 0 0 0 0 0 2 3 21 DAYS WITH DUST 0 0 1 0 0 0 0 0 0 2 0 0 3 WIND DIRECTION (PREVAILING) 270 270 270 90 315 90 90 90 90 90 270 270 90 PREVAILING WIND SPEED(KNOTS) 10.3 11.7 15.1 8.6 10.5 9.1 9.9 8.1 8.7 6.6 12.1 10.0 8.3 PREVAILING WIND PERCENT 40.0 25.0 22.6 24.0 22.6 39.3 47.7 23.2 25.3 18.7 21.3 35.5 21.4 CALMS PERCENT OF WIND 26.5 22.9 20.6 27.3 22.6 14.7 12.3 21.3 25.3 39.4 40.7 31.6 25.4 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 288 296 296 60 330 77 104 104 94 318 298 291 341 VECTOR WIND MAGNITUDE(KNOTS) 4.8 3.3 3.5 0.8 2.1 3.0 6.8 2.9 2.9 0.7 2.7 4.4 0.7 WIND STEADINESES (MEAN %) 68.6 44.6 40.2 13.1 30.9 33.7 79.1 49.2 46.0 14.6 49.1 66.7 10.1 WIND SPEED (MEAN KNOTS) 7.0 7.4 8.7 6.1 6.8 8.9 8.6 5.9 6.3 4.8 5.5 6.6 6.9 FASTEST WIND DIRECTION 290 290 300 290 210 290 120 290 280 290 310 310 300 FASTEST WIND SPEED (KNOTS) 27 27 39 19 29 35 19 19 23 27 27 25 39 DAY 16 6 8 18 23 25 21 4 19 5 3 16 DAYS WITH SKY CLEAR (0-2)/8 16 6 10 8 15 23 31 28 29 23 14 14 217 DAYS WITH P.CLOUDY (3-6)/8 9 15 10 10 14 6 0 3 1 8 9 10 95 DAYS WITH CLOUDY (7-8)/8 6 7 11 12 2 1 0 0 0 0 7 7 53 DAYS WITH VISIBILITY =< 2 KM 6 6 3 5 0 0 0 1 0 0 1 3 25 DURATION OF SUNSHINE HOURS 156.1 144.8 167.5 142.1 286.8 312.1 348.6 353.7 313.0 258.9 170.5 170.7 2824.8 ======================================================================================================================= 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 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 887.8 884.3 885.4 886.1 886.6 883.1 881.2 884.3 886.5 888.0 890.1 890.5 886.2 MAX. QFE PRESSURE IN HPA 895.1 894.0 895.6 892.6 895.6 889.4 887.1 888.4 894.8 894.5 900.4 901.4 901.4 DAY-HOUR 11- 6 13- 6 3- 6 16- 9 2- 3 7- 3 4- 3 30- 6 27- 3 16- 6 26- 6 12- 6 MIN. QFE PRESSURE IN HPA 873.6 872.4 874.8 880.2 879.6 877.1 876.6 880.3 878.7 879.6 879.8 882.1 872.4 DAY-HOUR 29- 3 19- 9 26-12 5-12 30-12 30-12 7-15 1- 3 7-12 27-12 14-12 6-12 MEAN QNH PRESSURE IN HPA 1022.0 1018.0 1019.3 1020.1 1020.7 1016.7 1014.7 1018.1 1020.6 1022.2 1024.6 1025.0 1020.2 MAX. QNH PRESSURE IN HPA 1030.2 1029.0 1030.8 1027.4 1030.8 1023.8 1021.2 1022.7 1029.9 1029.5 1036.1 1037.3 1037.3 DAY-HOUR 11- 6 13- 6 3- 6 16- 9 2- 3 7- 3 4- 3 30- 6 27- 3 16- 6 26- 6 12- 6 MIN. QNH PRESSURE IN HPA 1006.1 1004.8 1007.4 1013.5 1012.8 1010.0 1009.5 1013.6 1011.8 1012.8 1013.1 1015.6 1004.8 DAY-HOUR 29- 3 19- 9 26-12 5-12 30-12 30-12 7-15 1- 3 7-12 27-12 14-12 6-12 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 887.6 884.3 885.5 886.7 887.2 884.1 882.2 885.3 887.6 888.8 890.4 890.6 886.7 MAX. QFE PRESSURE IN HPA 894.5 893.3 895.2 892.1 895.6 889.4 887.1 888.2 894.8 894.1 899.3 900.3 900.3 DAY 11 13 3 16 2 7 4 30 27 16 26 12 MIN. QFE PRESSURE IN HPA 873.6 873.5 875.6 882.4 880.3 880.8 878.6 880.3 880.0 882.6 883.3 882.1 873.5 DAY 29 19 27 23 30 27 8 1 7 26 21 7 MEAN QNH PRESSURE IN HPA 1021.8 1018.1 1019.5 1020.7 1021.3 1017.9 1015.7 1019.2 1021.8 1023.1 1025.0 1025.1 1020.8 MAX. QNH PRESSURE IN HPA 1029.5 1028.2 1030.3 1026.8 1030.8 1023.8 1021.2 1022.5 1029.9 1029.1 1034.9 1036.0 1036.0 DAY 11 13 3 16 2 7 4 30 27 16 26 12 MIN. QNH PRESSURE IN HPA 1006.1 1006.0 1008.3 1016.0 1013.6 1014.2 1011.7 1013.6 1013.3 1016.2 1017.0 1015.6 1006.0 DAY 29 19 27 23 30 27 8 1 7 26 21 7 MEAN QFF PRESSURE IN HPA 1025.9 1020.2 1020.3 1018.3 1017.3 1010.7 1006.5 1011.2 1016.4 1020.1 1026.2 1028.4 1018.5 MAX. QFF PRESSURE IN HPA 1034.3 1033.5 1038.0 1028.3 1032.2 1021.7 1012.0 1014.8 1029.1 1028.1 1038.8 1047.2 1047.2 DAY 23 13 3 19 2 7 4 30 27 16 26 13 MIN. QFF PRESSURE IN HPA 1009.1 1013.0 1005.2 1010.1 1007.0 1005.8 1002.4 1004.1 1006.6 1012.4 1016.2 1014.7 1002.4 DAY 29 19 27 27 30 19 8 1 7 27 2 7 ======================================================================================================================= 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 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 888.9 885.3 886.5 887.1 887.4 884.1 882.2 885.5 887.8 889.2 891.1 891.7 887.2 MAX. QFE PRESSURE IN HPA 895.1 894.0 895.6 892.6 895.5 889.2 886.8 888.4 894.7 894.5 900.4 901.4 901.4 DAY 11 13 3 30 2 7 4 30 27 16 26 12 MIN. QFE PRESSURE IN HPA 877.1 873.0 877.0 882.2 880.7 879.9 878.4 881.4 880.2 882.7 883.5 883.6 873.0 DAY 29 19 21 23 30 30 1 1 7 27 14 7 MEAN QNH PRESSURE IN HPA 1023.2 1019.2 1020.5 1021.2 1021.6 1017.9 1015.8 1019.4 1022.0 1023.6 1025.8 1026.3 1021.4 MAX. QNH PRESSURE IN HPA 1030.2 1029.0 1030.8 1027.4 1030.7 1023.6 1020.9 1022.7 1029.8 1029.5 1036.1 1037.3 1037.3 DAY 11 13 3 30 2 7 4 30 27 16 26 12 MIN. QNH PRESSURE IN HPA 1010.0 1005.4 1009.9 1015.7 1014.1 1013.2 1011.5 1014.8 1013.5 1016.3 1017.2 1017.3 1005.4 DAY 29 19 21 23 30 30 1 1 7 27 14 7 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 887.5 884.2 885.4 886.1 886.6 883.1 881.3 884.3 886.4 887.6 889.7 890.0 886.0 MAX. QFE PRESSURE IN HPA 894.1 891.1 893.9 892.6 894.7 887.9 885.3 887.1 893.7 892.8 898.9 900.2 900.2 DAY 11 13 3 16 1 7 4 30 26 15 23 12 MIN. QFE PRESSURE IN HPA 879.2 872.4 876.2 882.0 880.5 878.5 877.8 880.7 879.2 880.8 881.2 882.4 872.4 DAY 29 19 21 27 30 30 1 1 7 27 14 27 MEAN QNH PRESSURE IN HPA 1021.7 1018.0 1019.4 1020.1 1020.7 1016.7 1014.7 1018.1 1020.5 1021.8 1024.1 1024.5 1020.0 MAX. QNH PRESSURE IN HPA 1029.1 1025.7 1028.9 1027.4 1029.8 1022.1 1019.2 1021.2 1028.6 1027.6 1034.5 1035.9 1035.9 DAY 11 13 3 16 1 7 4 30 26 15 23 12 MIN. QNH PRESSURE IN HPA 1012.4 1004.8 1009.0 1015.5 1013.8 1011.6 1010.8 1014.1 1012.4 1014.2 1014.6 1016.0 1004.8 DAY 29 19 21 27 30 30 1 1 7 27 14 27 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 887.0 883.4 884.5 885.1 885.7 881.9 880.2 883.2 885.2 886.8 889.1 889.6 885.1 MAX. QFE PRESSURE IN HPA 892.6 891.0 893.4 892.6 895.0 887.5 884.4 885.9 892.9 892.0 897.5 899.7 899.7 DAY 11 24 2 16 1 6 4 30 26 15 23 12 MIN. QFE PRESSURE IN HPA 878.5 873.5 874.8 880.2 879.6 877.1 876.6 880.3 878.7 879.6 879.8 882.1 873.5 DAY 28 19 26 5 30 30 8 1 7 27 14 6 MEAN QNH PRESSURE IN HPA 1021.2 1017.1 1018.3 1019.0 1019.7 1015.4 1013.5 1016.8 1019.2 1020.9 1023.5 1024.1 1019.0 MAX. QNH PRESSURE IN HPA 1027.4 1025.6 1028.3 1027.4 1030.1 1021.7 1018.2 1019.9 1027.7 1026.7 1032.9 1035.4 1035.4 DAY 11 24 2 16 1 6 4 30 26 15 23 12 MIN. QNH PRESSURE IN HPA 1011.6 1006.0 1007.4 1013.5 1012.8 1010.0 1009.5 1013.6 1011.8 1012.8 1013.1 1015.6 1006.0 DAY 28 19 26 5 30 30 8 1 7 27 14 6 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 2003 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 888.0 884.2 885.2 885.7 886.2 882.2 880.3 883.5 885.7 887.8 890.1 890.6 885.8 MAX. QFE PRESSURE IN HPA 893.2 892.0 894.6 892.0 895.0 888.7 884.6 886.2 893.4 893.4 898.2 900.4 900.4 DAY 11 24 2 16 1 6 4 30 26 15 25 12 MIN. QFE PRESSURE IN HPA 877.1 875.1 875.9 880.4 880.0 877.3 876.6 880.8 879.2 881.6 881.9 882.3 875.1 DAY 28 19 26 5 30 30 7 1 7 27 20 6 MEAN QNH PRESSURE IN HPA 1022.2 1017.9 1019.1 1019.7 1020.2 1015.7 1013.6 1017.2 1019.7 1022.0 1024.6 1025.1 1019.8 MAX. QNH PRESSURE IN HPA 1028.1 1026.7 1029.6 1026.7 1030.1 1023.0 1018.4 1020.2 1028.3 1028.3 1033.7 1036.1 1036.1 DAY 11 24 2 16 1 6 4 30 26 15 25 12 MIN. QNH PRESSURE IN HPA 1010.0 1007.8 1008.7 1013.7 1013.3 1010.3 1009.5 1014.2 1012.4 1015.1 1015.4 1015.9 1007.8 DAY 28 19 26 5 30 30 7 1 7 27 20 6 MEAN QFF PRESSURE IN HPA 1026.3 1020.1 1019.9 1017.2 1016.1 1008.5 1004.4 1009.2 1014.4 1018.9 1025.8 1028.5 1017.4 MAX. QFF PRESSURE IN HPA 1034.8 1029.3 1036.2 1027.9 1031.2 1018.9 1010.3 1013.4 1027.0 1027.1 1037.4 1047.0 1047.0 DAY 26 24 2 18 1 6 4 30 27 15 23 12 MIN. QFF PRESSURE IN HPA 1015.9 1010.5 1005.2 1007.9 1007.2 1002.2 1000.3 1005.2 1004.5 1010.3 1015.4 1016.6 1000.3 DAY 28 20 26 27 30 30 19 1 7 27 2 19 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 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 4.8 8.0 10.5 13.0 21.9 27.2 27.0 27.2 22.0 15.3 10.4 3.0 15.8 MINIMUN AIR TEMPERATURE (C) 0.0 1.0 2.9 5.2 11.9 14.7 17.3 15.3 9.8 5.0 3.7 -1.9 7.1 DAYS WITH MINIMUM TEMP. >=21 0 0 0 0 0 0 3 2 0 0 0 0 5 DAYS WITH MINIMUM TEMP. <=-4 2 1 0 0 0 0 0 0 0 0 1 3 7 DAYS WITH FREEZING MIN.<= 0 15 12 8 0 0 0 0 0 0 2 3 27 67 TEMPERATURE RECORDS LOWEST(C) -8.0 -4.6 -1.6 0.2 4.6 10.2 13.0 10.0 4.4 -1.8 -4.4 -7.4 -8.0 DAY 31 1 17 6 1 15 15 21 23 9 29 4 MAXIMUM AIR TEMPERATURE (C) 8.4 12.8 15.2 17.3 26.3 31.8 31.5 32.3 27.6 21.2 15.2 6.8 20.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 6 22 25 27 9 0 0 0 89 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 1 1 TEMPERATURE RECORDS HIGHEST(C) 15.6 24.0 27.4 28.2 32.6 35.8 35.6 40.2 35.2 29.8 23.8 13.8 40.2 DAY 8 15 6 24 11 3 26 13 6 4 3 8 DIF. BETWEEN (MAX.-MIN.) (C) 8.4 11.8 12.3 12.1 14.4 17.1 14.2 17.0 17.8 16.2 11.5 8.7 13.4 MEAN DAILY TEMP. (MDT) (C) 4.2 6.9 9.1 11.3 19.1 23.3 24.4 23.8 18.7 13.1 9.4 2.5 13.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 9.0 74.3 108.8 87.1 14.7 0.0 0.0 0.0 293.9 HEATING DEG. DAYS(BASE 18 0C) 426.8 323.0 280.2 203.7 18.7 0.0 0.0 0.0 28.0 154.3 256.8 481.1 2172.6 DEWPOINT (MEAN C) -0.8 -3.1 0.3 3.0 5.2 2.6 8.9 2.7 1.0 0.3 2.0 -2.8 1.6 MIXING RATIO (G/KG) 4.20 3.60 4.47 5.61 6.59 5.48 8.29 5.58 4.91 4.65 5.16 3.60 5.18 VAPOUR PRESSURE (HPA) 5.93 5.09 6.34 7.90 9.25 7.72 11.61 7.84 6.95 6.60 7.31 5.10 7.30 SATURATION DEF. (HPA) 3.01 6.28 7.76 8.11 18.01 29.54 25.12 29.49 20.96 12.01 5.99 2.74 14.09 RELATIVE HUMIDITY (MEAN %) 70 52 57 57 38 23 35 23 28 42 61 70 46 RELATIVE HUMIDITY (MAX. %) 85 73 79 81 64 40 55 41 51 66 80 88 67 RELATIVE HUMIDITY (MIN. %) 56 35 41 41 24 15 23 14 16 27 46 53 33 RELATIVE HUMIDITY (MEAN% 03UTC) 83 72 78 79 63 40 55 41 51 63 78 85 66 RELATIVE HUMIDITY (MEAN% 09UTC) 61 42 47 47 28 17 26 17 20 33 52 58 37 RELATIVE HUMIDITY (MEAN% 15UTC) 74 51 55 56 35 21 33 20 23 41 66 75 46 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 34.3 9.0 28.3 47.3 25.2 1.3 6.4 0.0 0.0 6.4 26.9 38.2 223.3 DAYS WITH PRECIPITATION >=10 2 0 0 1 1 0 0 0 0 0 1 1 6 DAYS WITH PRECIPITATION >= 5 2 1 3 4 2 0 0 0 0 1 1 2 16 DAYS WITH PRECIPITATION >= 1 8 2 5 7 5 1 2 0 0 2 6 6 44 DAYS WITH PRECIPITATION 11 5 9 10 10 2 6 0 0 4 9 11 77 GREATEST DAILY PRECIPITATION 10.4 6.0 8.3 13.0 11.0 1.0 3.0 0.0 0.0 5.0 12.4 14.0 14.0 DAY 14 7 16 1 14 5 13 ** ** 24 19 17 DAY WITH THUNDER STORM 0 0 0 1 4 1 7 0 0 0 2 1 16 DAYS WITH SNOW OR SLEET 1 0 4 1 0 0 0 0 0 0 2 7 15 DAYS WITH DUST 0 1 0 1 1 0 0 0 1 0 0 0 4 WIND DIRECTION (PREVAILING) 270 270 270 90 90 90 90 90 90 90 270 270 90 PREVAILING WIND SPEED(KNOTS) 9.8 11.7 10.3 8.2 9.2 9.5 9.7 9.2 8.6 7.2 11.8 10.7 8.3 PREVAILING WIND PERCENT 31.0 28.3 15.5 27.3 36.1 29.3 21.3 24.5 26.7 24.5 15.3 35.5 19.5 CALMS PERCENT OF WIND 27.1 33.1 42.6 28.0 25.2 22.0 16.1 17.4 21.3 31.0 44.7 21.9 27.5 NO. OF WIND OBSERVATION 155 145 155 150 155 150 155 155 150 155 150 155 1830 VECTOR WIND DIRECTION (MEAN) 288 276 308 108 103 94 69 87 100 62 292 294 338 VECTOR WIND MAGNITUDE(KNOTS) 4.9 4.3 1.3 1.3 2.6 4.3 1.5 2.5 1.9 0.6 1.8 5.0 0.4 WIND STEADINESES (MEAN %) 74.2 62.3 27.1 18.8 35.6 61.4 20.5 33.3 30.2 11.3 41.9 69.4 6.2 WIND SPEED (MEAN KNOTS) 6.6 6.9 4.8 6.9 7.3 7.0 7.3 7.5 6.3 5.3 4.3 7.2 6.5 FASTEST WIND DIRECTION 310 240 280 270 290 120 290 280 290 310 290 290 240 FASTEST WIND SPEED (KNOTS) 27 39 23 35 31 21 23 23 27 23 35 27 39 DAY 28 16 2 17 21 12 7 27 11 11 28 27 DAYS WITH SKY CLEAR (0-2)/8 11 16 8 11 17 28 24 31 27 24 13 11 221 DAYS WITH P.CLOUDY (3-6)/8 10 10 11 13 11 2 6 0 3 6 14 11 97 DAYS WITH CLOUDY (7-8)/8 10 3 12 6 3 0 1 0 0 1 3 9 48 DAYS WITH VISIBILITY =< 2 KM 3 0 1 1 0 0 0 0 0 1 5 4 15 DURATION OF SUNSHINE HOURS 151.7 211.2 151.9 216.1 284.7 358.1 318.3 366.3 307.9 259.5 171.0 142.5 2939.2 ======================================================================================================================= 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 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 884.9 886.2 888.8 885.7 883.6 883.3 882.9 883.1 888.2 891.0 888.3 888.3 886.2 MAX. QFE PRESSURE IN HPA 893.9 892.6 901.0 894.2 892.0 892.0 889.1 888.3 893.3 898.1 894.7 900.3 901.0 DAY-HOUR 11- 6 13- 6 9- 6 11- 6 22- 6 6- 3 6- 3 7- 6 21- 6 15- 6 29- 6 3-15 MIN. QFE PRESSURE IN HPA 875.6 875.1 876.1 868.1 873.3 877.6 876.4 876.1 881.1 883.8 877.3 880.5 868.1 DAY-HOUR 23-12 15-15 31-12 17-12 13-12 17-15 10-15 12-15 11-12 3-12 24- 3 10- 3 MEAN QNH PRESSURE IN HPA 1018.8 1020.3 1023.1 1019.6 1017.3 1017.0 1016.5 1016.7 1022.4 1025.6 1022.6 1022.5 1020.2 MAX. QNH PRESSURE IN HPA 1028.9 1027.4 1036.8 1029.2 1026.7 1026.7 1023.5 1022.6 1028.2 1033.6 1029.8 1036.0 1036.8 DAY-HOUR 11- 6 13- 6 9- 6 11- 6 22- 6 6- 3 6- 3 7- 6 21- 6 15- 6 29- 6 3-15 MIN. QNH PRESSURE IN HPA 1008.3 1007.8 1008.9 999.9 1005.8 1010.6 1009.2 1008.9 1014.5 1017.5 1010.3 1013.8 999.9 DAY-HOUR 23-12 15-15 31-12 17-12 13-12 17-15 10-15 12-15 11-12 3-12 24- 3 10- 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 884.9 886.4 889.2 886.2 884.7 884.4 883.9 884.0 889.0 891.7 888.4 888.3 886.8 MAX. QFE PRESSURE IN HPA 892.5 892.0 899.9 894.0 891.7 892.0 889.1 887.9 892.8 897.5 893.9 897.7 899.9 DAY 11 13 9 11 22 6 6 7 14 15 29 4 MIN. QFE PRESSURE IN HPA 875.6 876.6 880.0 878.5 877.0 879.5 879.9 878.4 882.7 886.5 877.3 880.5 875.6 DAY 28 16 31 17 13 18 11 13 11 22 24 10 MEAN QNH PRESSURE IN HPA 1018.8 1020.5 1023.6 1020.2 1018.5 1018.2 1017.6 1017.8 1023.4 1026.4 1022.7 1022.6 1020.9 MAX. QNH PRESSURE IN HPA 1027.3 1026.7 1035.6 1029.0 1026.4 1026.7 1023.5 1022.1 1027.6 1032.9 1028.9 1033.1 1035.6 DAY 11 13 9 11 22 6 6 7 14 15 29 4 MIN. QNH PRESSURE IN HPA 1008.3 1009.5 1013.3 1011.6 1009.9 1012.7 1013.2 1011.5 1016.3 1020.6 1010.3 1013.8 1008.3 DAY 28 16 31 17 13 18 11 13 11 22 24 10 MEAN QFF PRESSURE IN HPA 1021.3 1021.8 1023.6 1018.5 1012.6 1010.1 1009.2 1009.7 1018.3 1024.6 1022.6 1026.2 1018.2 MAX. QFF PRESSURE IN HPA 1032.4 1028.1 1038.2 1029.0 1023.0 1019.6 1015.4 1014.7 1024.3 1033.5 1034.2 1039.9 1039.9 DAY 1 10 9 6 22 6 6 7 27 15 29 4 MIN. QFF PRESSURE IN HPA 1011.0 1005.7 1008.8 1006.5 1001.9 1003.9 1004.7 1001.7 1009.8 1016.9 1007.8 1015.4 1001.7 DAY 28 16 31 24 13 18 11 13 11 4 24 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 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 886.0 887.4 889.9 886.6 884.6 884.4 883.8 884.3 889.5 892.2 889.3 889.3 887.3 MAX. QFE PRESSURE IN HPA 893.9 892.6 901.0 894.2 892.0 891.9 888.7 888.3 893.3 898.1 894.7 898.6 901.0 DAY 11 13 9 11 22 6 6 7 21 15 29 3 MIN. QFE PRESSURE IN HPA 878.1 879.3 880.2 876.4 877.2 879.7 878.5 879.1 882.8 886.8 879.9 882.4 876.4 DAY 28 16 31 17 15 18 11 4 11 3 24 10 MEAN QNH PRESSURE IN HPA 1020.0 1021.6 1024.3 1020.7 1018.5 1018.2 1017.6 1018.1 1023.9 1027.0 1023.7 1023.7 1021.4 MAX. QNH PRESSURE IN HPA 1028.9 1027.4 1036.8 1029.2 1026.7 1026.6 1023.0 1022.6 1028.2 1033.6 1029.8 1034.1 1036.8 DAY 11 13 9 11 22 6 6 7 21 15 29 3 MIN. QNH PRESSURE IN HPA 1011.1 1012.5 1013.5 1009.2 1010.1 1012.9 1011.6 1012.3 1016.4 1020.9 1013.2 1016.0 1009.2 DAY 28 16 31 17 15 18 11 4 11 3 24 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 884.5 886.2 888.7 885.7 883.5 883.2 882.7 883.1 888.0 890.6 888.0 887.9 886.0 MAX. QFE PRESSURE IN HPA 892.0 891.0 899.4 892.9 890.5 890.9 887.0 886.8 892.3 895.9 893.8 898.6 899.4 DAY 12 10 9 11 22 6 6 7 21 15 30 3 MIN. QFE PRESSURE IN HPA 877.2 878.1 877.9 873.1 875.5 879.1 878.0 877.3 881.8 884.8 879.9 881.5 873.1 DAY 23 15 31 17 16 18 11 4 11 3 23 20 MEAN QNH PRESSURE IN HPA 1018.3 1020.2 1023.0 1019.7 1017.2 1016.9 1016.3 1016.7 1022.3 1025.1 1022.2 1022.2 1020.0 MAX. QNH PRESSURE IN HPA 1026.7 1025.6 1035.0 1027.7 1025.1 1025.5 1021.1 1020.9 1027.1 1031.1 1028.8 1034.1 1035.0 DAY 12 10 9 11 22 6 6 7 21 15 30 3 MIN. QNH PRESSURE IN HPA 1010.1 1011.1 1010.9 1005.5 1008.2 1012.3 1011.0 1010.3 1015.3 1018.7 1013.2 1015.0 1005.5 DAY 23 15 31 17 16 18 11 4 11 3 23 20 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 884.2 885.3 887.7 884.6 882.2 882.0 881.8 881.9 886.9 889.8 887.4 887.5 885.1 MAX. QFE PRESSURE IN HPA 892.0 890.0 898.0 892.0 889.8 889.7 885.5 885.8 891.3 895.0 893.0 898.3 898.3 DAY 11 10 9 28 22 6 6 18 21 27 30 3 MIN. QFE PRESSURE IN HPA 875.6 876.4 876.1 868.1 873.3 878.1 876.8 876.3 881.1 883.8 877.9 881.2 868.1 DAY 23 15 31 17 13 17 10 12 11 3 23 15 MEAN QNH PRESSURE IN HPA 1018.0 1019.3 1021.9 1018.4 1015.8 1015.5 1015.3 1015.4 1021.0 1024.2 1021.6 1021.7 1019.0 MAX. QNH PRESSURE IN HPA 1026.7 1024.5 1033.5 1026.7 1024.3 1024.2 1019.4 1019.8 1025.9 1030.1 1027.9 1033.8 1033.8 DAY 11 10 9 28 22 6 6 18 21 27 30 3 MIN. QNH PRESSURE IN HPA 1008.3 1009.2 1008.9 999.9 1005.8 1011.1 1009.7 1009.1 1014.5 1017.5 1010.9 1014.6 999.9 DAY 23 15 31 17 13 17 10 12 11 3 23 15 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 2004 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 885.0 886.0 888.4 885.3 882.9 882.6 882.2 882.2 887.5 890.8 888.4 888.3 885.8 MAX. QFE PRESSURE IN HPA 893.1 890.6 899.6 892.5 890.6 889.9 885.8 886.6 891.6 896.6 893.8 900.3 900.3 DAY 11 10 8 10 22 6 5 17 21 14 30 3 MIN. QFE PRESSURE IN HPA 875.6 875.1 879.1 870.1 873.7 877.6 876.4 876.1 882.1 884.4 878.0 881.4 870.1 DAY 27 15 31 17 13 17 10 12 11 3 23 15 MEAN QNH PRESSURE IN HPA 1018.9 1019.9 1022.7 1019.2 1016.5 1016.2 1015.7 1015.8 1021.7 1025.4 1022.7 1022.6 1019.8 MAX. QNH PRESSURE IN HPA 1028.0 1025.2 1035.2 1027.3 1025.2 1024.4 1019.8 1020.7 1026.3 1031.9 1028.8 1036.0 1036.0 DAY 11 10 8 10 22 6 5 17 21 14 30 3 MIN. QNH PRESSURE IN HPA 1008.3 1007.8 1012.3 1002.2 1006.2 1010.6 1009.2 1008.9 1015.6 1018.2 1011.0 1014.8 1002.2 DAY 27 15 31 17 13 17 10 12 11 3 23 15 MEAN QFF PRESSURE IN HPA 1021.2 1021.1 1022.6 1017.5 1010.6 1008.1 1007.3 1007.7 1016.7 1023.6 1022.6 1026.2 1017.1 MAX. QFF PRESSURE IN HPA 1030.8 1027.6 1036.7 1026.9 1021.4 1017.7 1011.6 1013.4 1022.6 1031.4 1031.9 1041.6 1041.6 DAY 1 8 9 6 22 6 5 30 21 14 30 3 MIN. QFF PRESSURE IN HPA 1010.2 1004.5 1008.3 1000.3 998.3 1002.3 1000.3 999.6 1008.4 1014.3 1009.8 1017.2 998.3 DAY 27 15 31 17 13 17 10 12 11 3 23 15 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 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.1 2.4 10.7 15.6 19.7 26.3 29.3 26.3 23.7 16.4 8.1 6.3 15.6 MINIMUN AIR TEMPERATURE (C) -2.4 -3.1 4.1 6.8 10.8 15.9 17.6 15.3 10.5 5.5 1.1 -0.2 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 9 12 1 0 0 0 0 0 0 0 4 5 31 DAYS WITH FREEZING MIN.<= 0 27 22 5 5 0 0 0 0 0 3 13 17 92 TEMPERATURE RECORDS LOWEST(C) -8.4 -10.2 -4.4 -3.0 5.8 11.2 14.6 9.0 5.6 -2.2 -6.0 -8.8 -10.2 DAY 13 18 27 7 20 2 11 28 12 25 28 30 MAXIMUM AIR TEMPERATURE (C) 5.7 6.6 14.7 20.0 23.9 30.6 33.8 31.0 29.5 22.3 13.3 11.3 20.2 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 0 0 17 31 23 11 0 0 0 82 DAYS WITH MAXIMUM TEMP. <= 0 1 3 1 0 0 0 0 0 0 0 0 2 7 TEMPERATURE RECORDS HIGHEST(C) 10.0 16.8 23.4 28.6 29.0 37.8 38.0 35.8 34.6 29.8 20.0 19.4 38.0 DAY 19 21 11 21 31 21 7 7 3 18 5 6 DIF. BETWEEN (MAX.-MIN.) (C) 8.1 9.7 10.6 13.2 13.1 14.7 16.2 15.7 19.0 16.8 12.2 11.5 13.4 MEAN DAILY TEMP. (MDT) (C) 1.6 1.8 9.4 13.4 17.4 23.3 25.7 23.1 20.0 13.9 7.2 5.5 13.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.0 1.3 76.5 145.2 80.1 13.7 0.0 0.0 0.0 316.8 HEATING DEG. DAYS(BASE 18 0C) 507.3 454.7 267.4 148.2 34.5 0.0 0.0 0.9 3.7 130.8 324.6 386.2 2258.3 DEWPOINT (MEAN C) -2.9 -4.8 2.0 2.6 5.5 6.5 5.2 4.2 1.3 0.0 -0.1 -1.2 1.5 MIXING RATIO (G/KG) 3.54 3.13 5.24 5.51 6.64 7.16 6.63 6.14 4.99 4.47 4.43 4.08 5.16 VAPOUR PRESSURE (HPA) 5.02 4.43 7.38 7.78 9.35 10.04 9.30 8.62 7.05 6.35 6.29 5.80 7.28 SATURATION DEF. (HPA) 2.29 3.45 6.43 11.76 14.21 25.39 32.44 26.72 23.62 13.82 5.12 4.37 14.14 RELATIVE HUMIDITY (MEAN %) 71 64 61 47 43 32 25 27 27 38 60 62 46 RELATIVE HUMIDITY (MAX. %) 88 86 82 72 66 51 43 48 51 63 81 81 68 RELATIVE HUMIDITY (MIN. %) 56 47 45 30 29 20 16 17 15 24 42 46 32 RELATIVE HUMIDITY (MEAN% 03UTC) 85 84 80 71 64 51 43 48 51 63 78 77 66 RELATIVE HUMIDITY (MEAN% 09UTC) 61 54 52 36 33 23 18 20 17 28 46 52 37 RELATIVE HUMIDITY (MEAN% 15UTC) 77 62 58 45 45 30 23 23 23 37 68 67 47 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 24.2 11.0 92.8 22.1 17.9 10.4 4.0 0.1 0.0 2.1 28.3 3.6 216.5 DAYS WITH PRECIPITATION >=10 1 0 5 1 0 0 0 0 0 0 1 0 8 DAYS WITH PRECIPITATION >= 5 2 0 6 1 1 1 0 0 0 0 1 0 12 DAYS WITH PRECIPITATION >= 1 3 4 9 4 6 3 1 0 0 1 3 2 36 DAYS WITH PRECIPITATION 8 11 15 7 15 6 3 1 0 3 5 5 79 GREATEST DAILY PRECIPITATION 11.0 3.4 20.0 10.0 7.1 8.0 4.0 0.1 0.0 2.0 21.0 2.1 21.0 DAY 7 10 14 13 7 1 22 24 ** 24 9 26 DAY WITH THUNDER STORM 0 0 2 2 10 3 1 0 0 1 1 0 20 DAYS WITH SNOW OR SLEET 4 8 1 1 0 0 0 0 0 0 0 1 15 DAYS WITH DUST 0 0 0 0 1 0 1 2 0 1 0 0 5 WIND DIRECTION (PREVAILING) 270 270 270 90 90 90 90 270 90 90 270 270 90 PREVAILING WIND SPEED(KNOTS) 11.9 12.0 10.3 9.0 8.3 10.0 8.6 11.9 9.8 7.6 8.6 11.0 8.5 PREVAILING WIND PERCENT 32.9 19.3 18.1 28.7 30.3 37.3 31.6 16.8 42.7 30.3 22.7 27.1 21.9 CALMS PERCENT OF WIND 41.3 30.7 40.0 23.3 16.1 8.0 14.2 27.7 22.7 25.8 36.0 41.3 27.3 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 290 299 302 83 67 79 76 335 98 90 300 287 11 VECTOR WIND MAGNITUDE(KNOTS) 5.2 2.0 1.5 1.8 1.2 3.4 3.4 2.8 5.5 1.7 2.1 4.1 0.8 WIND STEADINESES (MEAN %) 86.7 32.8 31.3 26.5 16.7 40.0 45.9 40.0 79.7 27.9 46.7 74.5 12.5 WIND SPEED (MEAN KNOTS) 6.0 6.1 4.8 6.8 7.2 8.5 7.4 7.0 6.9 6.1 4.5 5.5 6.4 FASTEST WIND DIRECTION 280 290 270 290 290 290 300 270 90 290 290 270 290 FASTEST WIND SPEED (KNOTS) 27 29 27 31 35 23 29 27 16 25 29 27 35 DAY 20 22 15 5 6 8 8 10 3 26 9 4 DAYS WITH SKY CLEAR (0-2)/8 12 10 8 14 9 23 30 30 30 27 19 19 231 DAYS WITH P.CLOUDY (3-6)/8 15 10 15 12 18 6 1 1 0 3 7 10 98 DAYS WITH CLOUDY (7-8)/8 4 8 8 4 4 1 0 0 0 1 4 2 36 DAYS WITH VISIBILITY =< 2 KM 4 4 2 0 0 0 0 0 0 1 1 3 15 DURATION OF SUNSHINE HOURS 163.7 139.2 185.4 240.1 244.9 314.9 367.9 358.1 323.9 267.8 197.3 178.3 2981.5 ======================================================================================================================= 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 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 886.7 886.4 884.3 887.9 885.6 883.0 882.3 883.2 886.3 890.2 890.7 890.2 886.4 MAX. QFE PRESSURE IN HPA 896.7 896.1 890.5 899.1 893.5 888.3 886.8 889.3 892.2 897.9 896.7 900.5 900.5 DAY-HOUR 8- 6 17- 6 26-15 6- 6 19- 6 5- 3 16- 6 27- 3 9- 6 24- 6 27- 6 30- 6 MIN. QFE PRESSURE IN HPA 871.2 876.0 873.0 879.3 873.8 874.0 875.1 876.0 879.9 881.3 881.6 877.8 871.2 DAY-HOUR 23-12 2- 9 24- 9 27-15 6- 9 21-12 6-12 7-12 5-12 20-12 9- 9 26- 9 MEAN QNH PRESSURE IN HPA 1020.7 1020.4 1018.1 1022.1 1019.5 1016.6 1015.9 1016.8 1020.4 1024.8 1025.2 1024.7 1020.4 MAX. QNH PRESSURE IN HPA 1032.0 1031.3 1025.1 1034.7 1028.4 1022.6 1020.9 1023.7 1027.0 1033.3 1032.0 1036.3 1036.3 DAY-HOUR 8- 6 17- 6 26-15 6- 6 19- 6 5- 3 16- 6 27- 3 9- 6 24- 6 27- 6 30- 6 MIN. QNH PRESSURE IN HPA 1003.4 1008.8 1005.4 1012.5 1006.3 1006.5 1007.8 1008.8 1013.2 1014.7 1015.1 1010.8 1003.4 DAY-HOUR 23-12 2- 9 24- 9 27-15 6- 9 21-12 6-12 7-12 5-12 20-12 9- 9 26- 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 886.7 886.5 884.6 888.5 886.1 883.9 883.3 884.1 887.3 890.9 891.1 890.2 886.9 MAX. QFE PRESSURE IN HPA 894.7 895.0 890.0 898.6 893.3 888.3 886.6 889.3 891.8 897.4 895.1 898.9 898.9 DAY 8 17 27 6 19 5 16 27 9 12 29 29 MIN. QFE PRESSURE IN HPA 876.4 876.6 875.0 881.2 875.4 876.1 876.5 878.5 882.3 884.0 883.2 878.9 875.0 DAY 23 2 24 28 6 21 6 7 5 21 9 24 MEAN QNH PRESSURE IN HPA 1020.7 1020.5 1018.5 1022.8 1020.1 1017.7 1016.9 1017.9 1021.5 1025.4 1025.8 1024.8 1021.0 MAX. QNH PRESSURE IN HPA 1029.8 1030.1 1024.5 1034.1 1028.2 1022.6 1020.7 1023.7 1026.5 1032.8 1030.2 1034.5 1034.5 DAY 8 17 27 6 19 5 16 27 9 12 29 29 MIN. QNH PRESSURE IN HPA 1009.2 1009.5 1007.7 1014.6 1008.1 1008.9 1009.4 1011.6 1015.9 1017.8 1016.9 1012.0 1007.7 DAY 23 2 24 28 6 21 6 7 5 21 9 24 MEAN QFF PRESSURE IN HPA 1024.6 1024.5 1017.9 1020.2 1015.1 1009.6 1007.7 1010.1 1015.7 1023.2 1027.4 1027.0 1018.6 MAX. QFF PRESSURE IN HPA 1033.0 1037.1 1030.5 1037.9 1023.1 1016.2 1011.7 1017.6 1020.6 1033.2 1035.8 1042.7 1042.7 DAY 9 17 27 6 19 5 16 30 10 24 29 31 MIN. QFF PRESSURE IN HPA 1012.7 1008.3 1005.0 1008.1 1003.2 998.3 999.3 1001.9 1008.1 1013.5 1015.3 1012.5 998.3 DAY 23 2 24 28 6 21 6 7 5 21 9 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 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 887.6 887.4 885.5 889.0 886.3 883.9 883.4 884.3 887.6 891.5 891.9 891.3 887.5 MAX. QFE PRESSURE IN HPA 896.7 896.1 890.5 899.1 893.5 888.0 886.8 889.3 892.2 897.9 896.7 900.5 900.5 DAY 8 17 27 6 19 5 16 27 9 24 27 30 MIN. QFE PRESSURE IN HPA 875.1 876.9 874.0 881.8 874.9 876.3 876.8 878.5 882.6 884.7 883.0 879.9 874.0 DAY 23 2 24 30 6 21 6 7 5 20 9 26 MEAN QNH PRESSURE IN HPA 1021.8 1021.5 1019.4 1023.4 1020.4 1017.6 1017.1 1018.1 1021.8 1026.1 1026.6 1026.0 1021.7 MAX. QNH PRESSURE IN HPA 1032.0 1031.3 1025.1 1034.7 1028.4 1022.2 1020.9 1023.7 1027.0 1033.3 1032.0 1036.3 1036.3 DAY 8 17 27 6 19 5 16 27 9 24 27 30 MIN. QNH PRESSURE IN HPA 1007.8 1009.8 1006.5 1015.3 1007.6 1009.1 1009.7 1011.6 1016.2 1018.5 1016.6 1013.2 1006.5 DAY 23 2 24 30 6 21 6 7 5 20 9 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 886.4 886.2 884.4 887.9 885.5 882.9 882.4 883.1 886.2 889.9 890.1 889.7 886.2 MAX. QFE PRESSURE IN HPA 895.2 894.6 889.1 898.0 892.4 887.2 885.9 888.4 890.9 896.6 895.0 898.8 898.8 DAY 8 17 27 6 19 5 16 27 9 24 27 30 MIN. QFE PRESSURE IN HPA 872.0 876.0 873.0 880.1 873.8 875.4 876.3 877.1 881.2 882.6 881.6 877.8 872.0 DAY 23 2 24 30 6 21 6 7 5 20 9 26 MEAN QNH PRESSURE IN HPA 1020.4 1020.2 1018.2 1022.1 1019.4 1016.5 1015.9 1016.7 1020.2 1024.3 1024.6 1024.2 1020.2 MAX. QNH PRESSURE IN HPA 1030.3 1029.6 1023.5 1033.5 1027.2 1021.4 1019.9 1022.7 1025.5 1031.9 1030.1 1034.4 1034.4 DAY 8 17 27 6 19 5 16 27 9 24 27 30 MIN. QNH PRESSURE IN HPA 1004.3 1008.8 1005.4 1013.4 1006.3 1008.1 1009.1 1010.0 1014.6 1016.2 1015.1 1010.8 1004.3 DAY 23 2 24 30 6 21 6 7 5 20 9 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 885.9 885.5 883.3 886.8 884.7 882.1 881.1 881.9 885.0 889.0 889.6 889.3 885.4 MAX. QFE PRESSURE IN HPA 894.7 893.9 887.8 896.8 891.3 886.9 884.8 887.3 889.7 895.8 894.1 898.7 898.7 DAY 8 17 16 6 19 4 15 27 9 24 15 30 MIN. QFE PRESSURE IN HPA 871.2 877.7 873.0 879.3 874.2 874.0 875.1 876.0 879.9 881.3 882.8 878.8 871.2 DAY 23 2 24 30 6 21 6 7 5 20 9 26 MEAN QNH PRESSURE IN HPA 1019.9 1019.5 1017.0 1020.9 1018.6 1015.6 1014.6 1015.4 1018.9 1023.4 1024.1 1023.7 1019.3 MAX. QNH PRESSURE IN HPA 1029.8 1028.9 1022.0 1032.1 1025.9 1021.0 1018.7 1021.5 1024.2 1031.0 1029.1 1034.2 1034.2 DAY 8 17 16 6 19 4 15 27 9 24 15 30 MIN. QNH PRESSURE IN HPA 1003.4 1010.7 1005.4 1012.5 1006.8 1006.5 1007.8 1008.8 1013.2 1014.7 1016.4 1011.9 1003.4 DAY 23 2 24 30 6 21 6 7 5 20 9 26 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION 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 2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 886.8 886.4 884.0 887.3 885.3 882.3 881.6 882.4 885.6 890.0 890.6 890.4 886.1 MAX. QFE PRESSURE IN HPA 895.3 894.5 890.5 897.2 890.9 887.8 885.2 887.3 889.9 896.5 895.2 899.4 899.4 DAY 8 16 26 6 19 4 15 27 9 23 15 30 MIN. QFE PRESSURE IN HPA 871.6 880.4 874.2 879.3 876.3 874.8 875.1 876.5 880.4 882.0 885.2 880.1 871.6 DAY 23 1 24 27 6 21 6 7 5 20 9 26 MEAN QNH PRESSURE IN HPA 1020.9 1020.5 1017.7 1021.5 1019.2 1015.8 1015.1 1016.0 1019.6 1024.5 1025.2 1024.9 1020.1 MAX. QNH PRESSURE IN HPA 1030.4 1029.5 1025.1 1032.6 1025.5 1022.0 1019.1 1021.5 1024.4 1031.8 1030.3 1035.0 1035.0 DAY 8 16 26 6 19 4 15 27 9 23 15 30 MIN. QNH PRESSURE IN HPA 1003.9 1013.7 1006.8 1012.5 1009.1 1007.4 1007.8 1009.4 1013.7 1015.5 1019.1 1013.4 1003.9 DAY 23 1 24 27 6 21 6 7 5 20 9 26 MEAN QFF PRESSURE IN HPA 1024.8 1024.4 1017.0 1018.8 1014.3 1007.7 1005.9 1008.3 1013.8 1022.4 1026.8 1027.2 1017.6 MAX. QFF PRESSURE IN HPA 1033.9 1036.6 1030.0 1036.2 1021.0 1015.2 1010.1 1016.4 1018.7 1032.6 1035.0 1043.3 1043.3 DAY 9 17 26 6 19 4 15 29 9 24 27 30 MIN. QFF PRESSURE IN HPA 1006.2 1014.5 1005.7 1006.8 1004.2 996.6 997.5 999.9 1006.0 1010.5 1018.3 1012.8 996.6 DAY 23 1 24 27 3 21 6 7 5 20 8 26 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 CLIMATOLOGICAL NORMALS FOR THE PERIOD 1987-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 2.2 3.6 8.5 15.2 20.4 26.2 28.3 27.1 21.9 15.3 9.4 4.8 15.2 MINIMUN AIR TEMPERATURE (C) -3.1 -2.1 1.8 7.0 10.7 15.0 17.4 15.1 10.1 5.7 2.1 -0.8 6.6 DAYS WITH MINIMUM TEMP. >=21 0.0 0.0 0.0 0.0 0.0 0.2 2.8 0.8 0.1 0.0 0.0 0.0 3.9 DAYS WITH MINIMUM TEMP. <=-4 11.1 8.3 2.3 0.0 0.0 0.0 0.0 0.0 0.0 0.3 1.7 5.8 29.5 DAYS WITH FREEZING MIN.<= 0 25.0 20.0 9.9 1.5 0.2 0.0 0.0 0.0 0.0 2.4 9.5 17.9 86.4 TEMPERATURE RECORDS LOWEST(C) -20.0 -18.8 -14.4 -3.4 -2.6 6.2 9.8 2.4 1.0 -7.8 -7.8 -17.6 -20.0 YEAR-DAY 1-30 88- 8 92-12 96- 6 89- 3 0-14 99-14 96-31 88-26 95-19 92-21 90-27 1-30 MAXIMUM AIR TEMPERATURE (C) 6.5 8.2 13.1 20.1 25.2 30.9 32.8 32.1 27.7 21.5 14.8 9.4 20.2 DAYS WITH MAXIMUM TEMP. >=30 0.0 0.0 0.0 0.6 5.5 19.2 27.3 25.5 8.9 0.9 0.0 0.0 87.9 DAYS WITH MAXIMUM TEMP. <= 0 2.7 2.5 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.3 7.1 TEMPERATURE RECORDS HIGHEST(C) 19.8 24.0 27.6 32.6 35.8 39.0 40.8 40.2 38.6 33.4 27.2 26.6 40.8 YEAR-DAY 0- 2 4-15 2-27 0-10 1-16 95-30 98- 6 4-13 96- 9 98- 2 87- 7 98-11 98- 6 DIF. BETWEEN (MAX.-MIN.) (C) 9.6 10.3 11.3 13.1 14.5 15.9 15.4 17.0 17.6 15.8 12.7 10.2 13.6 MEAN DAILY TEMP. (MDT) (C) 1.7 3.0 7.5 13.6 18.0 23.0 25.1 23.6 18.9 13.6 8.4 4.3 13.4 STANDARD DEVIATION OF MDT(C) 1.88 2.14 1.66 1.55 1.49 0.88 0.73 0.91 1.38 1.79 1.90 1.80 1.51 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 0.8 9.9 68.1 128.0 87.3 15.0 0.3 0.0 0.0 309.4 HEATING DEG. DAYS(BASE 18 0C) 502.2 423.0 326.4 142.6 44.2 1.1 0.0 0.7 29.0 142.0 286.8 425.2 2323.2 DEWPOINT (MEAN C) -4.0 -3.8 -0.1 4.4 5.9 6.1 7.9 6.4 4.0 1.7 0.0 -2.5 2.2 MIXING RATIO (G/KG) 3.33 3.42 4.52 6.18 6.86 7.04 7.95 7.31 6.20 5.15 4.49 3.74 5.52 VAPOUR PRESSURE (HPA) 4.72 4.85 6.38 8.70 9.64 9.87 11.11 10.24 8.73 7.30 6.37 5.31 7.77 SATURATION DEF. (HPA) 2.96 3.76 5.64 9.89 15.62 25.32 28.40 27.12 19.35 11.57 6.18 3.92 13.31 RELATIVE HUMIDITY (MEAN %) 67 63 61 54 44 31 30 30 36 46 57 64 48 RELATIVE HUMIDITY (MAX. %) 82 83 82 78 66 50 48 49 57 69 79 81 69 RELATIVE HUMIDITY (MIN. %) 53 46 44 38 30 21 21 20 23 30 40 48 35 RELATIVE HUMIDITY (MEAN% 03UTC) 79 80 81 77 64 49 48 49 57 67 76 78 67 RELATIVE HUMIDITY (MEAN% 09UTC) 58 53 51 44 34 24 24 23 26 35 46 54 39 RELATIVE HUMIDITY (MEAN% 15UTC) 69 63 58 50 41 28 28 27 31 45 59 67 47 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 21.8 27.8 46.4 36.9 23.5 5.8 1.9 0.9 2.5 8.5 15.1 21.5 212.6 DAYS WITH PRECIPITATION >=10 0.7 0.7 1.6 1.0 0.7 0.1 0.0 0.1 0.1 0.2 0.5 0.4 6.1 DAYS WITH PRECIPITATION >= 5 1.7 1.9 3.3 2.3 1.5 0.5 0.1 0.1 0.2 0.7 0.9 1.6 14.8 DAYS WITH PRECIPITATION >= 1 4.3 5.4 7.1 5.8 4.3 1.2 0.5 0.1 0.5 1.7 2.7 4.3 37.9 DAYS WITH PRECIPITATION 8.5 9.9 13.7 12.1 8.3 2.8 1.7 1.1 1.2 3.9 5.6 8.4 77.2 GREATEST DAILY PRECIPITATION 21.0 24.0 24.0 33.0 34.0 15.0 8.0 12.0 12.0 12.0 23.0 21.0 34.0 YEAR-DAY 99-19 98-12 87-28 91-27 3-24 95- 9 88-10 87- 5 95-22 87-27 3-15 0-16 3 DAY WITH THUNDER STORM 0.1 0.2 0.5 1.9 2.9 1.0 0.6 0.2 0.4 0.3 0.3 0.2 8.6 DAYS WITH SNOW OR SLEET 4.3 5.0 2.4 0.5 0.0 0.0 0.0 0.0 0.0 0.1 0.9 2.7 15.9 DAYS WITH DUST 0.3 0.2 1.0 1.1 1.6 2.8 2.4 1.6 3.0 1.8 0.8 0.6 17.2 WIND DIRECTION (PREVAILING) 315 315 315 90 90 90 90 90 90 90 315 270 90 PREVAILING WIND SPEED(KNOTS) 12.5 12.6 14.6 7.7 8.4 9.0 8.7 7.8 8.1 6.9 10.7 9.7 7.8 PREVAILING WIND PERCENT 22.2 22.2 17.9 16.8 24.1 25.0 23.1 20.6 23.2 14.5 16.6 19.6 15.0 CALMS PERCENT OF WIND 44.0 42.4 41.4 39.0 34.2 30.9 28.8 33.3 38.9 49.0 51.9 45.4 39.9 NO. OF WIND OBSERVATION 159.8 145.9 158.3 155.3 160.5 154.6 155.0 153.7 155.0 164.8 157.1 159.4 1879.4 VECTOR WIND DIRECTION (MEAN) 298 299 297 343 74 87 89 94 102 1 302 299 338 VECTOR WIND MAGNITUDE(KNOTS) 4.3 3.7 2.7 0.7 1.6 2.4 2.5 2.3 2.4 0.6 2.4 3.5 0.8 WIND STEADINESES (MEAN %) 74.1 59.7 41.5 11.1 25.0 35.3 37.3 39.0 44.4 13.6 55.8 68.6 13.8 WIND SPEED (MEAN KNOTS) 5.8 6.2 6.5 6.3 6.4 6.8 6.7 5.9 5.4 4.4 4.3 5.1 5.8 FASTEST WIND DIRECTION 300 300 300 290 320 290 50 350 290 310 310 240 290 FASTEST WIND SPEED (KNOTS) 51 54 58 74 68 45 49 43 68 54 47 47 74 YEAR-DAY 88-20 92-11 90- 5 94- 4 91-23 96- 2 87-24 92-30 89-19 92-29 92-26 87-24 94 DAYS WITH SKY CLEAR (0-2)/8 11.4 10.3 8.4 8.8 15.6 23.4 27.1 28.6 26.4 21.2 14.2 11.8 207.2 DAYS WITH P.CLOUDY (3-6)/8 11.6 9.5 11.6 14.6 11.6 6.2 3.5 2.1 3.1 7.1 11.4 11.7 104.0 DAYS WITH CLOUDY (7-8)/8 8.1 8.4 11.0 6.5 3.8 0.4 0.4 0.1 0.4 2.7 4.4 7.4 53.6 DAYS WITH VISIBILITY =< 2 KM 4.5 3.6 2.8 1.3 0.4 0.1 0.1 0.2 0.2 1.2 2.5 4.9 21.8 DURATION OF SUNSHINE HOURS 153.6 157.9 164.7 214.5 279.4 339.9 353.1 352.0 296.0 247.2 189.0 150.9 2898.2 ======================================================================================================================= 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 CLIMATOLOGICAL NORMALS FOR THE PERIOD 1987-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 887.3 886.3 885.2 885.4 885.0 882.6 881.8 883.2 886.4 889.4 889.7 888.9 885.9 MAX. QFE PRESSURE IN HPA 902.0 899.8 901.0 899.1 895.6 892.0 890.8 894.4 897.1 901.6 903.2 901.8 903.2 YEAR-DAY 99- 2 98-23 4- 9 5- 6 3- 2 4- 6 96- 3 96-30 94-23 95-25 97- 8 2- 3 97- 8 MIN. QFE PRESSURE IN HPA 870.2 871.5 869.6 868.1 870.7 871.0 872.4 875.3 875.7 877.7 872.4 871.1 868.1 YEAR-DAY 98-13 1-21 87-14 4-17 90-13 88-23 98- 6 1-31 96- 9 96-27 95-26 88-27 4-17 MEAN QNH PRESSURE IN HPA 1021.5 1020.3 1019.1 1019.3 1018.9 1016.2 1015.3 1016.8 1020.4 1023.9 1024.1 1023.3 1019.9 MAX. QNH PRESSURE IN HPA 1037.9 1035.5 1036.8 1034.7 1030.8 1026.7 1025.4 1029.4 1032.5 1037.5 1039.3 1037.7 1039.3 YEAR-DAY 99- 2 98-23 4- 9 5- 6 3- 2 4- 6 96- 3 96-30 94-23 95-25 97- 8 2- 3 97- 8 MIN. QNH PRESSURE IN HPA 1002.3 1003.7 1001.6 999.9 1002.8 1003.2 1004.8 1008.0 1008.5 1010.7 1004.8 1003.3 999.9 YEAR-DAY 98-13 1-21 87-14 4-17 90-13 88-23 98- 6 1-31 96- 9 96-27 95-26 88-27 4-17 MEAN QFF PRESSURE IN HPA 1024.4 1024.0 1015.1 1016.5 1013.4 1005.7 ****** ****** 1014.6 1023.6 1022.9 1023.3 1018.3 MAX. QFF PRESSURE IN HPA 1042.1 1043.6 1027.7 1034.8 1027.8 1018.1 ****** ****** 1026.4 1040.4 1041.6 1042.6 1043.6 YEAR-DAY 88- 3 88- 7 88-17 88- 9 88- 5 88- 1 **-** **-** 88-25 87-28 87-30 87- 1 88- 7 MIN. QFF PRESSURE IN HPA 1009.2 1010.4 1001.8 1004.9 999.5 992.4 ****** ****** 1004.0 1009.5 1007.5 1005.4 992.4 YEAR-DAY 88-29 88- 2 88-21 88-15 88-29 88-23 **-** **-** 88- 5 88-21 87- 7 87-24 88-23 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 886.3 886.2 882.1 885.5 884.4 881.2 ****** ****** 886.3 890.3 889.5 887.8 886.0 MAX. QFE PRESSURE IN HPA 895.3 895.6 890.8 895.3 892.6 888.2 ****** ****** 892.4 898.3 898.8 898.9 898.9 YEAR-DAY 88- 3 88- 7 88-17 88- 9 88- 5 88- 1 **-** **-** 88-25 87-29 87-30 87- 2 87- 2 MIN. QFE PRESSURE IN HPA 878.5 879.6 871.7 878.6 876.6 873.4 ****** ****** 882.2 880.7 881.3 879.9 871.7 YEAR-DAY 88-29 88- 1 88- 5 88- 1 88-29 88-24 **-** **-** 88- 5 88-31 87- 8 87- 7 88- 5 MEAN QNH PRESSURE IN HPA 1020.4 1020.2 1015.6 1019.4 1018.2 1014.6 ****** ****** 1020.4 1024.8 1023.9 1022.0 1020.0 MAX. QNH PRESSURE IN HPA 1030.4 1030.8 1025.4 1030.4 1027.4 1022.5 ****** ****** 1027.2 1033.8 1034.4 1034.5 1034.5 YEAR-DAY 88- 3 88- 7 88-17 88- 9 88- 5 88- 1 **-** **-** 88-25 87-29 87-30 87- 2 87- 2 MIN. QNH PRESSURE IN HPA 1011.6 1012.8 1004.0 1011.7 1009.5 1005.9 ****** ****** 1015.7 1014.1 1014.7 1013.2 1004.0 YEAR-DAY 88-29 88- 1 88- 5 88- 1 88-29 88-24 **-** **-** 88- 5 88-31 87- 8 87- 7 88- 5 MEAN QFF PRESSURE IN HPA 1023.8 1023.4 1014.9 1016.2 1013.0 1006.2 ****** ****** 1014.5 1023.1 1022.0 1023.1 1018.0 MAX. QFF PRESSURE IN HPA 1036.7 1040.6 1025.2 1033.0 1026.0 1018.1 ****** ****** 1024.2 1038.6 1039.4 1040.3 1040.6 YEAR-DAY 88- 3 88- 7 88-18 88- 9 88- 5 88- 1 **-** **-** 88-25 87-29 87-30 87- 1 88- 7 MIN. QFF PRESSURE IN HPA 1012.7 1012.1 1002.3 1006.4 999.8 995.2 ****** ****** 1006.6 1009.5 1009.8 1011.9 995.2 YEAR-DAY 88-29 88- 3 88- 5 88-24 88-29 88-24 **-** **-** 88- 6 88-21 87- 8 87- 7 88-24 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 887.4 886.4 885.6 886.0 885.8 883.6 882.7 884.2 887.3 890.1 890.0 889.1 886.5 MAX. QFE PRESSURE IN HPA 900.4 899.4 899.9 898.6 895.6 892.0 890.0 894.0 896.8 901.4 902.2 900.7 902.2 YEAR-DAY 99- 2 98-23 4- 9 5- 6 3- 2 4- 6 96- 3 96-30 94-23 95-18 0-17 2- 4 0-17 MIN. QFE PRESSURE IN HPA 873.6 871.9 870.4 871.3 873.2 873.8 874.3 876.9 878.1 880.4 872.4 873.0 870.4 YEAR-DAY 3-29 90-16 91- 7 2- 4 91-23 88-24 98- 6 89- 2 96- 9 96-27 95-26 88-26 91- 7 MEAN QNH PRESSURE IN HPA 1021.6 1020.5 1019.5 1020.0 1019.8 1017.3 1016.3 1017.9 1021.5 1024.6 1024.5 1023.5 1020.6 MAX. QNH PRESSURE IN HPA 1036.1 1035.0 1035.6 1034.1 1030.8 1026.7 1024.5 1029.0 1032.1 1037.3 1038.2 1036.5 1038.2 YEAR-DAY 99- 2 98-23 4- 9 5- 6 3- 2 4- 6 96- 3 96-30 94-23 95-18 0-17 2- 4 0-17 MIN. QNH PRESSURE IN HPA 1006.1 1004.2 1002.5 1003.5 1005.7 1006.3 1006.9 1009.8 1011.1 1013.7 1004.8 1005.4 1002.5 YEAR-DAY 3-29 90-16 91- 7 2- 4 91-23 88-24 98- 6 89- 2 96- 9 96-27 95-26 88-26 91- 7 MEAN QFF PRESSURE IN HPA 1025.5 1023.7 1020.1 1017.3 1014.5 1009.3 1007.4 1009.7 1016.1 1022.6 1025.2 1026.3 1018.1 MAX. QFF PRESSURE IN HPA 1043.5 1041.9 1041.6 1037.9 1032.2 1021.7 1016.5 1025.4 1029.1 1041.5 1043.2 1047.2 1047.2 YEAR-DAY 96-11 88- 8 2-11 5- 6 3- 2 3- 7 2- 3 96-30 3-27 95-18 96-19 3-13 3-13 MIN. QFF PRESSURE IN HPA 1009.1 1003.1 1000.4 1000.5 999.0 996.3 996.2 1001.0 1002.6 1009.7 1005.2 1005.3 996.2 YEAR-DAY 92- 3 99-21 98-30 87-20 90-13 88-24 98- 6 94- 3 96- 9 89- 2 93-14 94- 4 98- 6 ======================================================================================================================= 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 CLIMATOLOGICAL NORMALS FOR THE PERIOD 1987-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 888.4 887.3 886.3 886.4 886.0 883.6 882.8 884.3 887.6 890.6 890.7 890.0 887.0 MAX. QFE PRESSURE IN HPA 902.0 899.8 901.0 899.1 895.5 891.9 890.8 894.4 897.1 901.6 903.2 901.7 903.2 YEAR-DAY 99- 2 98-23 4- 9 5- 6 3- 2 4- 6 96- 3 96-30 94-23 95-25 97- 8 99- 1 97- 8 MIN. QFE PRESSURE IN HPA 874.9 873.0 871.4 870.8 872.4 874.2 874.0 877.2 878.2 879.8 874.7 873.5 870.8 YEAR-DAY 98-13 90-16 98-30 2- 4 91-23 88-24 98- 6 89- 2 96- 9 96-27 94-26 88-26 2- 4 MEAN QNH PRESSURE IN HPA 1022.7 1021.4 1020.3 1020.5 1020.0 1017.4 1016.4 1018.1 1021.8 1025.2 1025.3 1024.5 1021.1 MAX. QNH PRESSURE IN HPA 1037.9 1035.5 1036.8 1034.7 1030.7 1026.6 1025.4 1029.4 1032.5 1037.5 1039.3 1037.6 1039.3 YEAR-DAY 99- 2 98-23 4- 9 5- 6 3- 2 4- 6 96- 3 96-30 94-23 95-25 97- 8 99- 1 97- 8 MIN. QNH PRESSURE IN HPA 1007.6 1005.4 1003.6 1003.0 1004.8 1006.8 1006.5 1010.1 1011.3 1013.1 1007.3 1006.0 1003.0 YEAR-DAY 98-13 90-16 98-30 2- 4 91-23 88-24 98- 6 89- 2 96- 9 96-27 94-26 88-26 2- 4 MEAN QFF PRESSURE IN HPA 1025.7 1025.3 1016.2 1017.5 1014.2 1006.5 ****** ****** 1015.5 1024.5 1024.4 1024.8 1019.5 MAX. QFF PRESSURE IN HPA 1042.1 1042.4 1027.7 1034.8 1027.8 1016.5 ****** ****** 1025.3 1040.4 1040.6 1042.6 1042.6 YEAR-DAY 88- 3 88- 8 88-17 88- 9 88- 5 88- 1 **-** **-** 88-25 87-28 87-30 87- 1 87- 1 MIN. QFF PRESSURE IN HPA 1012.3 1013.9 1004.9 1008.8 1001.7 997.1 ****** ****** 1007.6 1013.8 1012.6 1010.4 997.1 YEAR-DAY 88-29 88- 2 88- 5 88-15 88-29 88-24 **-** **-** 88- 5 88-31 87- 7 87-24 88-24 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 887.1 886.2 885.2 885.4 885.1 882.6 881.8 883.2 886.3 889.1 889.3 888.5 885.8 MAX. QFE PRESSURE IN HPA 901.0 898.9 899.4 898.6 895.0 890.9 890.1 892.8 895.9 900.3 902.2 900.5 902.2 YEAR-DAY 99- 2 98-23 4- 9 94- 5 98- 3 4- 6 96- 3 96-30 94-23 95-25 0-17 2- 3 0-17 MIN. QFE PRESSURE IN HPA 872.0 872.3 870.0 870.8 870.7 873.0 872.8 876.6 876.6 878.2 873.9 872.8 870.0 YEAR-DAY 5-23 1-21 89-30 2- 4 90-13 88-23 98- 6 89- 2 96- 9 96-27 94-26 94- 4 89-30 MEAN QNH PRESSURE IN HPA 1021.2 1020.3 1019.1 1019.3 1019.0 1016.2 1015.3 1016.9 1020.3 1023.5 1023.7 1022.9 1019.8 MAX. QNH PRESSURE IN HPA 1036.8 1034.5 1035.0 1034.1 1030.1 1025.5 1024.6 1027.6 1031.1 1036.0 1038.2 1036.3 1038.2 YEAR-DAY 99- 2 98-23 4- 9 94- 5 98- 3 4- 6 96- 3 96-30 94-23 95-25 0-17 2- 3 0-17 MIN. QNH PRESSURE IN HPA 1004.3 1004.6 1002.1 1003.0 1002.8 1005.4 1005.2 1009.5 1009.5 1011.3 1006.4 1005.2 1002.1 YEAR-DAY 5-23 1-21 89-30 2- 4 90-13 88-23 98- 6 89- 2 96- 9 96-27 94-26 94- 4 89-30 MEAN QFF PRESSURE IN HPA 1023.7 1023.7 1014.2 1016.2 1013.2 1005.5 ****** ****** 1013.9 1022.6 1021.7 1021.9 1017.7 MAX. QFF PRESSURE IN HPA 1039.5 1041.1 1026.0 1034.0 1026.2 1016.1 ****** ****** 1023.2 1039.1 1039.0 1039.2 1041.1 YEAR-DAY 88- 3 88- 7 88-17 88- 9 88- 5 88- 1 **-** **-** 88-25 87-28 87-30 87- 1 88- 7 MIN. QFF PRESSURE IN HPA 1009.2 1011.3 1003.6 1006.5 1001.0 994.5 ****** ****** 1006.4 1011.8 1008.5 1005.4 994.5 YEAR-DAY 88-29 88- 2 88- 5 88-15 88-29 88-23 **-** **-** 88- 5 88-21 87- 7 87-24 88-23 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 886.6 885.4 884.2 884.3 884.0 881.5 880.7 882.1 885.1 888.3 888.6 888.0 884.9 MAX. QFE PRESSURE IN HPA 899.9 897.4 898.0 897.4 895.0 889.7 889.1 891.5 895.0 900.0 901.4 900.6 901.4 YEAR-DAY 99- 2 1-10 4- 9 94- 5 3- 1 4- 6 96- 3 96-29 94-23 98- 9 97- 7 2- 3 97- 7 MIN. QFE PRESSURE IN HPA 870.8 871.7 869.6 868.1 870.9 871.0 872.4 875.3 875.7 877.7 875.2 872.6 868.1 YEAR-DAY 98-13 1-21 87-14 4-17 90-13 88-23 98- 6 1-31 96- 9 96-27 94-26 88-27 4-17 MEAN QNH PRESSURE IN HPA 1020.7 1019.4 1018.0 1018.1 1017.7 1015.0 1014.1 1015.6 1019.0 1022.5 1023.0 1022.3 1018.8 MAX. QNH PRESSURE IN HPA 1035.6 1032.8 1033.5 1032.8 1030.1 1024.2 1023.5 1026.2 1030.1 1035.7 1037.3 1036.4 1037.3 YEAR-DAY 99- 2 1-10 4- 9 94- 5 3- 1 4- 6 96- 3 96-29 94-23 98- 9 97- 7 2- 3 97- 7 MIN. QNH PRESSURE IN HPA 1003.0 1004.0 1001.6 999.9 1003.1 1003.2 1004.8 1008.0 1008.5 1010.7 1007.9 1005.0 999.9 YEAR-DAY 98-13 1-21 87-14 4-17 90-13 88-23 98- 6 1-31 96- 9 96-27 94-26 88-27 4-17 MEAN QFF PRESSURE IN HPA 1023.1 1022.7 1012.8 1015.1 1012.3 1004.4 ****** ****** 1012.8 1021.9 1021.0 1021.7 1016.8 MAX. QFF PRESSURE IN HPA 1037.2 1040.8 1024.2 1032.0 1025.4 1014.0 ****** ****** 1022.8 1038.5 1038.8 1038.0 1040.8 YEAR-DAY 88- 3 88- 7 88-17 88- 9 88- 5 88- 1 **-** **-** 88-25 87-28 87-30 87- 1 88- 7 MIN. QFF PRESSURE IN HPA 1009.6 1010.4 1001.8 1004.9 999.5 992.4 ****** ****** 1004.0 1009.5 1007.5 1009.7 992.4 YEAR-DAY 88-29 88- 2 88-21 88-15 88-29 88-23 **-** **-** 88- 5 88-21 87- 7 87-24 88-23 ======================================================================================================================= 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 CLIMATOLOGICAL NORMALS FOR THE PERIOD 1987-2005 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 887.4 886.2 884.8 884.8 884.3 881.7 880.9 882.3 885.5 889.0 889.6 888.9 885.4 MAX. QFE PRESSURE IN HPA 900.8 898.3 899.6 897.5 895.0 889.9 889.5 892.2 895.9 900.6 902.7 901.8 902.7 YEAR-DAY 99- 2 1-10 4- 8 94- 5 3- 1 4- 6 96- 3 96-29 94-23 98- 9 97- 7 2- 3 97- 7 MIN. QFE PRESSURE IN HPA 870.2 871.5 869.9 870.1 872.7 871.0 872.7 875.5 876.6 878.3 878.0 871.1 869.9 YEAR-DAY 98-13 1-21 87-14 4-17 91-22 88-23 98- 6 89- 1 96-22 96-27 4-23 88-27 87-14 MEAN QNH PRESSURE IN HPA 1021.5 1020.2 1018.7 1018.6 1018.1 1015.2 1014.3 1015.8 1019.5 1023.4 1024.0 1023.2 1019.4 MAX. QNH PRESSURE IN HPA 1036.6 1033.8 1035.2 1032.9 1030.1 1024.4 1023.9 1027.0 1031.1 1036.4 1038.7 1037.7 1038.7 YEAR-DAY 99- 2 1-10 4- 8 94- 5 3- 1 4- 6 96- 3 96-29 94-23 98- 9 97- 7 2- 3 97- 7 MIN. QNH PRESSURE IN HPA 1002.3 1003.7 1002.0 1002.2 1005.1 1003.2 1005.1 1008.2 1009.5 1011.4 1011.0 1003.3 1002.0 YEAR-DAY 98-13 1-21 87-14 4-17 91-22 88-23 98- 6 89- 1 96-22 96-27 4-23 88-27 87-14 MEAN QFF PRESSURE IN HPA 1025.4 1023.4 1019.2 1015.9 1012.7 1007.2 1005.4 1007.7 1014.1 1021.3 1024.7 1026.0 1016.9 MAX. QFF PRESSURE IN HPA 1044.8 1042.9 1037.0 1036.5 1031.2 1018.9 1015.2 1021.6 1027.1 1040.0 1042.5 1047.2 1047.2 YEAR-DAY 99- 2 88- 7 90-17 94- 5 3- 1 3- 6 96- 3 96-30 94-23 87-28 96-18 2- 3 2- 3 MIN. QFF PRESSURE IN HPA 1006.2 1004.2 999.9 1000.3 998.3 992.8 993.8 998.4 1000.8 1007.2 1009.4 1002.7 992.8 YEAR-DAY 5-23 1-21 87-14 4-17 4-13 88-23 98- 6 94- 1 96- 9 96-27 87- 7 88-27 88-23 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 887.0 886.7 882.1 886.3 885.3 881.2 ****** ****** 886.8 891.0 890.0 887.7 886.4 MAX. QFE PRESSURE IN HPA 895.3 896.8 891.8 896.5 893.6 886.9 ****** ****** 892.4 899.3 899.8 899.1 899.8 YEAR-DAY 88-11 88- 7 88-17 88- 8 88- 4 88- 1 **-** **-** 88-24 87-28 87-30 87- 1 87-30 MIN. QFE PRESSURE IN HPA 879.2 880.0 876.4 878.8 877.2 872.7 ****** ****** 881.7 881.5 879.6 879.4 872.7 YEAR-DAY 88-29 88- 2 88- 9 88-30 88-28 88-23 **-** **-** 88- 5 88-30 87- 7 87-13 88-23 MEAN QNH PRESSURE IN HPA 1021.1 1020.8 1015.7 1020.3 1019.3 1014.6 ****** ****** 1020.9 1025.6 1024.5 1022.0 1020.5 MAX. QNH PRESSURE IN HPA 1030.4 1032.1 1026.5 1031.8 1028.5 1021.0 ****** ****** 1027.2 1034.9 1035.5 1034.7 1035.5 YEAR-DAY 88-11 88- 7 88-17 88- 8 88- 4 88- 1 **-** **-** 88-24 87-28 87-30 87- 1 87-30 MIN. QNH PRESSURE IN HPA 1012.4 1013.3 1009.2 1011.9 1010.1 1005.1 ****** ****** 1015.2 1015.0 1012.8 1012.6 1005.1 YEAR-DAY 88-29 88- 2 88- 9 88-30 88-28 88-23 **-** **-** 88- 5 88-30 87- 7 87-13 88-23 MEAN QFF PRESSURE IN HPA 1025.0 1024.5 1015.4 1017.1 1013.9 1005.7 ****** ****** 1015.0 1024.1 1023.6 1023.5 1018.8 MAX. QFF PRESSURE IN HPA 1037.5 1043.6 1027.0 1032.5 1027.3 1014.7 ****** ****** 1024.8 1040.4 1041.5 1041.1 1043.6 YEAR-DAY 88- 3 88- 7 88-17 88- 8 88- 4 88- 1 **-** **-** 88-25 87-28 87-30 87- 1 88- 7 MIN. QFF PRESSURE IN HPA 1014.7 1012.3 1007.6 1006.9 1001.7 994.3 ****** ****** 1006.3 1012.2 1007.9 1011.9 994.3 YEAR-DAY 88-29 88- 2 88- 3 88-15 88-28 88-23 **-** **-** 88- 5 88-20 87- 7 87-13 88-23 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 886.6 886.5 882.2 886.0 885.1 881.0 ****** ****** 886.7 890.7 889.8 887.4 886.2 MAX. QFE PRESSURE IN HPA 895.6 896.5 891.7 895.8 892.8 886.6 ****** ****** 892.5 899.1 899.1 899.0 899.1 YEAR-DAY 88-11 88- 7 88-17 88- 8 88- 4 88- 1 **-** **-** 88-24 87-28 87-30 87- 1 87-28 MIN. QFE PRESSURE IN HPA 879.8 880.2 874.0 878.8 876.9 873.0 ****** ****** 882.3 881.2 879.7 879.4 873.0 YEAR-DAY 88-28 88-29 88- 4 88-30 88-28 88-23 **-** **-** 88- 4 88-30 87- 7 87-13 88-23 MEAN QNH PRESSURE IN HPA 1020.7 1020.5 1015.7 1020.0 1019.0 1014.3 ****** ****** 1020.8 1025.3 1024.3 1021.6 1020.2 MAX. QNH PRESSURE IN HPA 1030.8 1031.8 1026.4 1031.0 1027.6 1020.7 ****** ****** 1027.3 1034.7 1034.7 1034.6 1034.7 YEAR-DAY 88-11 88- 7 88-17 88- 8 88- 4 88- 1 **-** **-** 88-24 87-28 87-30 87- 1 87-28 MIN. QNH PRESSURE IN HPA 1013.1 1013.5 1006.5 1011.9 1009.8 1005.4 ****** ****** 1015.9 1014.6 1012.9 1012.6 1005.4 YEAR-DAY 88-28 88-29 88- 4 88-30 88-28 88-23 **-** **-** 88- 4 88-30 87- 7 87-13 88-23 MEAN QFF PRESSURE IN HPA 1024.1 1023.8 1014.9 1016.6 1013.5 1005.5 ****** ****** 1014.8 1023.6 1022.5 1022.3 1018.1 MAX. QFF PRESSURE IN HPA 1036.5 1042.0 1026.9 1032.6 1026.3 1014.4 ****** ****** 1023.8 1039.8 1039.9 1040.4 1042.0 YEAR-DAY 88- 2 88- 7 88-17 88- 8 88- 4 88- 1 **-** **-** 88-24 87-28 87-30 87- 1 88- 7 MIN. QFF PRESSURE IN HPA 1013.9 1011.9 1005.0 1006.5 1000.4 994.5 ****** ****** 1007.2 1010.9 1008.0 1011.0 994.5 YEAR-DAY 88-31 88- 2 88- 4 88-15 88-28 88-23 **-** **-** 88- 5 88-20 87- 7 87-13 88-23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 1 LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M AVERAGE OF DRY BULB TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1987 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 1988 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 1989 -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 1990 -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 1991 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 1992 0.5 3.2 4.5 ***** ***** ***** ***** 24.8 20.4 15.0 11.2 4.4 ****** 1993 0.7 2.4 7.0 ***** ***** ***** ***** ***** ***** ***** 6.1 4.6 ****** 1994 3.2 1.5 9.6 14.4 21.8 26.3 28.0 28.2 19.4 13.4 12.0 2.7 15.0 1995 4.6 4.2 8.4 15.2 20.5 25.0 29.3 27.8 20.8 14.2 11.9 2.9 15.4 1996 1.5 3.2 6.2 12.9 20.2 26.2 28.7 26.3 24.1 15.5 7.8 6.7 14.9 1997 4.0 3.9 7.1 15.9 20.1 26.1 29.7 27.4 23.2 18.0 7.7 4.7 15.6 1998 1.1 1.2 8.4 17.1 19.5 26.7 28.6 26.9 22.2 15.6 11.7 8.3 15.6 1999 3.2 7.9 7.7 13.6 19.9 26.5 26.7 28.1 21.6 16.4 7.3 6.9 15.5 2000 3.4 4.2 8.9 19.5 23.4 25.4 27.9 27.6 23.1 14.3 6.4 5.4 15.8 2001 0.6 5.2 11.1 18.6 24.6 27.7 27.8 27.5 22.2 15.8 10.9 6.3 16.5 2002 3.6 5.7 12.0 14.5 19.4 26.2 28.1 28.2 23.2 18.9 9.9 1.4 15.9 2003 2.7 5.0 7.8 14.5 17.8 24.1 29.0 27.1 21.9 18.5 8.3 3.7 15.0 2004 4.8 8.0 10.5 13.0 21.9 27.2 27.0 27.2 22.0 15.3 10.4 3.0 15.8 2005 2.1 2.4 10.7 15.6 19.7 26.3 29.3 26.3 23.7 16.4 8.1 6.3 15.6 MEAN 2.2 3.6 8.5 15.2 20.4 26.2 28.3 27.1 21.9 15.3 9.4 4.8 15.2 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 2 LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M AVERAGE OF MINIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1987 -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 1988 -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 1989 -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 1990 -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 1991 -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 1992 -5.1 -1.6 -1.4 ***** ***** ***** ***** 13.9 8.6 4.1 1.6 -0.2 ****** 1993 -4.4 -2.0 0.1 ***** ***** ***** ***** ***** ***** ***** -0.4 -1.3 ****** 1994 -2.8 -4.0 2.6 5.4 10.1 14.5 16.1 15.6 5.3 5.0 4.4 -3.0 5.8 1995 -2.1 -1.5 0.7 7.3 9.7 13.8 18.4 14.9 9.1 4.1 3.1 -2.2 6.3 1996 -4.5 -2.5 1.6 5.0 10.2 14.8 17.9 13.2 11.8 6.8 -0.8 -0.7 6.1 1997 -2.3 -3.3 0.7 7.7 10.7 16.0 17.9 14.7 11.2 7.7 1.5 -0.6 6.8 1998 -3.6 -4.2 1.2 9.0 11.1 16.1 18.1 17.2 10.7 5.9 3.3 1.8 7.2 1999 -1.7 1.0 2.1 5.4 9.8 15.1 16.7 15.8 10.2 6.3 1.7 0.3 6.9 2000 -3.2 -2.1 1.0 9.1 11.9 14.0 16.5 15.2 12.0 6.1 -0.4 -0.1 6.7 2001 -5.2 -1.7 3.1 8.6 13.2 15.7 17.5 15.4 10.3 6.3 3.6 1.1 7.3 2002 -1.2 -0.6 2.9 7.8 11.1 15.3 17.3 16.3 9.9 8.0 3.3 -3.7 7.2 2003 -3.2 -0.1 1.8 7.9 9.3 13.7 17.7 15.6 10.7 6.8 1.6 -1.5 6.7 2004 0.0 1.0 2.9 5.2 11.9 14.7 17.3 15.3 9.8 5.0 3.7 -1.9 7.1 2005 -2.4 -3.1 4.1 6.8 10.8 15.9 17.6 15.3 10.5 5.5 1.1 -0.2 6.8 MEAN -3.1 -2.1 1.8 7.0 10.7 15.0 17.4 15.1 10.1 5.7 2.1 -0.8 6.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 3 LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M AVERAGE OF MAXIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1987 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 1988 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 1989 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 1990 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 1991 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 1992 4.6 8.5 7.9 ***** ***** ***** ***** 28.9 25.7 21.0 17.3 8.1 ****** 1993 4.8 6.0 11.3 ***** ***** ***** ***** ***** ***** ***** 10.5 8.8 ****** 1994 7.6 5.9 14.6 19.1 26.3 30.7 32.3 32.6 24.3 18.8 17.1 7.2 19.7 1995 9.9 9.0 13.2 20.2 25.4 30.3 34.3 33.5 26.8 20.3 18.1 6.8 20.6 1996 6.1 7.4 9.9 18.0 24.5 30.3 32.8 31.7 30.1 21.2 13.1 12.0 19.8 1997 8.7 8.9 12.2 21.1 25.0 31.0 34.9 33.8 28.8 24.3 12.5 8.9 20.8 1998 5.2 5.6 13.7 22.5 23.9 31.0 33.3 31.8 27.8 22.3 17.6 13.4 20.7 1999 7.4 12.8 11.6 18.6 24.9 31.4 31.3 33.5 27.4 22.6 11.6 11.9 20.4 2000 8.4 8.7 14.0 25.0 28.7 30.3 32.5 32.9 29.1 19.7 11.1 9.8 20.8 2001 5.0 10.3 16.4 23.6 29.4 32.1 32.0 32.2 27.9 21.3 16.1 10.5 21.4 2002 7.5 10.7 17.5 18.4 23.5 31.1 32.4 33.2 29.3 25.1 14.7 5.5 20.7 2003 7.2 8.7 12.2 18.7 22.1 28.5 33.5 31.8 26.9 24.9 13.1 7.6 19.6 2004 8.4 12.8 15.2 17.3 26.3 31.8 31.5 32.3 27.6 21.2 15.2 6.8 20.5 2005 5.7 6.6 14.7 20.0 23.9 30.6 33.8 31.0 29.5 22.3 13.3 11.3 20.2 MEAN 6.5 8.2 13.1 20.1 25.2 30.9 32.8 32.1 27.7 21.5 14.8 9.4 20.2 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 4 LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M DIFFERENCE BETWEEN AVERAGE MAXIMUM AND MINIMUM TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1987 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 1988 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 1989 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 1990 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 1991 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 1992 9.7 10.1 9.3 ***** ***** ***** ***** 15.0 17.1 16.9 15.7 8.3 ****** 1993 9.2 8.0 11.2 ***** ***** ***** ***** ***** ***** ***** 10.9 10.1 ****** 1994 10.4 9.9 12.0 13.7 16.2 16.2 16.2 17.0 19.0 13.8 12.7 10.2 13.9 1995 12.0 10.5 12.5 12.9 15.7 16.5 15.9 18.6 17.7 16.2 15.0 9.0 14.3 1996 10.6 9.9 8.3 13.0 14.3 15.5 14.9 18.5 18.3 14.4 13.9 12.7 13.7 1997 11.0 12.2 11.5 13.4 14.3 15.0 17.0 19.1 17.6 16.6 11.0 9.5 14.0 1998 8.8 9.8 12.5 13.5 12.8 14.9 15.2 14.6 17.1 16.4 14.3 11.6 13.5 1999 9.1 11.8 9.5 13.2 15.1 16.3 14.6 17.7 17.2 16.3 9.9 11.6 13.5 2000 11.6 10.8 13.0 15.9 16.8 16.3 16.0 17.7 17.1 13.6 11.5 9.9 14.1 2001 10.2 12.0 13.3 15.0 16.2 16.4 14.5 16.8 17.6 15.0 12.5 9.4 14.1 2002 8.7 11.3 14.6 10.6 12.4 15.8 15.1 16.9 19.4 17.1 11.4 9.2 13.5 2003 10.4 8.8 10.4 10.8 12.8 14.8 15.8 16.2 16.2 18.1 11.5 9.1 12.9 2004 8.4 11.8 12.3 12.1 14.4 17.1 14.2 17.0 17.8 16.2 11.5 8.7 13.4 2005 8.1 9.7 10.6 13.2 13.1 14.7 16.2 15.7 19.0 16.8 12.2 11.5 13.4 MEAN 9.6 10.3 11.3 13.1 14.5 15.9 15.4 17.0 17.6 15.8 12.7 10.2 13.6 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 5 LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M AVERAGE OF MEAN DAILY TEMPERATURE IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1987 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 1988 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 1989 -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 1990 -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 1991 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 1992 -0.2 3.5 3.2 ***** ***** ***** ***** 21.4 17.1 12.5 9.5 4.0 ****** 1993 0.2 2.0 5.7 ***** ***** ***** ***** ***** ***** ***** 5.1 3.7 ****** 1994 2.4 0.9 8.6 12.2 18.2 22.6 24.2 24.1 14.8 11.9 10.8 2.1 12.7 1995 3.9 3.7 7.0 13.7 17.5 22.0 26.3 24.2 18.0 12.2 10.6 2.3 13.4 1996 0.8 2.5 5.7 11.5 17.4 22.5 25.3 22.5 21.0 14.0 6.1 5.7 12.9 1997 3.2 2.8 6.4 14.4 17.8 23.5 26.4 24.2 20.0 16.0 7.0 4.1 13.8 1998 0.8 0.7 7.5 15.7 17.5 23.6 25.7 24.5 19.2 14.1 10.4 7.6 13.9 1999 2.8 6.9 6.9 12.0 17.4 23.2 24.0 24.6 18.8 14.4 6.6 6.1 13.7 2000 2.6 3.3 7.5 17.0 20.3 22.1 24.5 24.1 20.5 12.9 5.3 4.8 13.7 2001 -0.1 4.3 9.8 16.1 21.3 23.9 24.7 23.8 19.1 13.8 9.8 5.8 14.4 2002 3.2 5.1 10.2 13.1 17.3 23.2 24.8 24.8 19.6 16.6 9.0 0.9 14.0 2003 2.0 4.3 7.0 13.3 15.7 21.1 25.6 23.7 18.8 15.8 7.3 3.0 13.1 2004 4.2 6.9 9.1 11.3 19.1 23.3 24.4 23.8 18.7 13.1 9.4 2.5 13.8 2005 1.6 1.8 9.4 13.4 17.4 23.3 25.7 23.1 20.0 13.9 7.2 5.5 13.5 MEAN 1.7 3.0 7.5 13.6 18.0 23.0 25.1 23.6 18.9 13.6 8.4 4.3 13.4 SD 1.88 2.14 1.66 1.55 1.49 0.88 0.73 0.91 1.38 1.79 1.90 1.80 1.51 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 6 LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M TEMPERATURE RECORDS LOWEST IN C. YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL 1987 -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 1988 -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 1989 -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 1990 -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 1991 -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 1992 -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 1993 -11.2 -10.2 -5.6 ***** ***** ***** ***** ***** ***** ***** -6.8 -9.0 ****** DAY 20 17 15 ** ** ** ** ** ** ** 18 7 1994 -8.0 -11.6 -2.8 -3.2 6.6 10.6 11.6 10.8 1.0 0.0 -0.4 -15.4 -15.4 DAY 22 5 2 6 9 7 21 11 8 27 16 8 1995 -6.8 -9.0 -6.0 1.6 4.0 7.4 13.2 7.4 3.6 -7.8 -6.0 -6.0 -9.0 DAY 10 20 7 8 27 1 21 26 23 19 28 12 1996 -12.0 -14.2 -5.6 -3.4 1.4 8.2 14.2 2.4 4.4 -3.2 -5.4 -9.2 -14.2 DAY 14 5 1 6 3 17 18 31 1 3 19 8 1997 -7.8 -13.0 -5.8 -1.0 4.6 11.6 14.0 6.8 5.6 1.8 -7.4 -10.4 -13.0 DAY 30 2 9 14 7 8 1 27 8 21 26 19 1998 -9.8 -12.2 -7.8 2.4 1.8 9.8 12.6 11.6 4.6 -3.6 -2.8 -4.4 -12.2 DAY 15 18 4 3 4 12 3 26 13 11 25 23 1999 -10.4 -3.2 -4.6 -3.2 3.0 10.6 9.8 10.8 2.2 1.2 -3.2 -6.0 -10.4 DAY 4 1 6 24 23 18 14 16 29 27 7 2 2000 -10.4 -11.2 -6.8 2.4 7.2 6.2 12.2 10.2 7.6 0.6 -5.6 -5.4 -11.2 DAY 13 9 16 1 11 14 19 25 27 8 18 11 2001 -20.0 -9.4 -5.4 4.8 9.0 11.6 10.2 11.4 1.0 -2.4 -1.6 -5.6 -20.0 DAY 30 1 12 3 2 3 30 15 21 12 21 23 2002 -8.0 -5.6 -8.6 0.0 6.0 10.6 10.0 8.0 6.2 2.6 -2.6 -12.2 -12.2 DAY 16 2 11 1 15 18 23 15 8 24 26 5 2003 -13.0 -7.8 -8.0 -1.6 1.4 6.6 13.0 11.0 1.2 1.4 -4.0 -17.2 -17.2 DAY 26 19 3 19 3 8 25 31 29 14 24 13 2004 -8.0 -4.6 -1.6 0.2 4.6 10.2 13.0 10.0 4.4 -1.8 -4.4 -7.4 -8.0 DAY 31 1 17 6 1 15 15 21 23 9 29 4 2005 -8.4 -10.2 -4.4 -3.0 5.8 11.2 14.6 9.0 5.6 -2.2 -6.0 -8.8 -10.2 DAY 13 18 27 7 20 2 11 28 12 25 28 30 1987-2005 -20.0 -18.8 -14.4 -3.4 -2.6 6.2 9.8 2.4 1.0 -7.8 -7.8 -17.6 -20.0 YEAR-DAY 1-30 88- 8 92-12 96- 6 89- 3 0-14 99-14 96-31 88-26 95-19 92-21 90-27 1 =============================================================================================== TEHRAN 2006,MAY M.(S & A) STATION GOLMAKAN CHENARAN (40744) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) FORM 7 LATITUDE 36 29 N LONGITUDE 59 17 E DATA PROCESSING CENTER ELEVATION 1176.0 M