STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 13.1 14.8 19.4 25.2 31.5 35.6 37.2 38.2 36.9 29.5 19.2 12.9 26.1 MINIMUN AIR TEMPERATURE (C) 7.9 8.6 13.2 16.7 22.8 26.8 27.6 27.4 24.5 18.5 11.4 6.9 17.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 5 25 30 31 31 30 15 0 0 167 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 0 0 0 0 0 0 0 0 0 0 0 1 TEMPERATURE RECORDS LOWEST(C) -1.0 4.0 8.0 11.0 18.0 22.0 23.0 21.0 21.0 10.0 7.0 1.0 -1.0 DAY 28 9 1 1 7 3 5 7 20 22 24 27 MAXIMUM AIR TEMPERATURE (C) 18.8 21.2 25.9 33.0 39.7 43.8 46.9 45.4 44.0 36.0 28.1 19.8 33.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 2 27 31 30 31 31 30 26 9 0 217 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 27.0 32.0 40.0 44.0 47.0 53.0 49.0 47.0 43.0 34.0 27.0 53.0 DAY 1 26 23 30 30 5 11 1 4 1 1 2 DIF. BETWEEN (MAX.-MIN.) (C) 10.9 12.6 12.7 16.3 16.9 17.0 19.3 18.0 19.5 17.5 16.7 12.9 15.9 MEAN DAILY TEMP. (MDT) (C) 13.4 14.9 19.5 24.8 31.3 35.3 37.3 36.4 34.2 27.3 19.8 13.4 25.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 7.0 116.5 319.0 429.5 504.0 478.0 397.0 197.5 22.0 0.5 2471.0 HEATING DEG. DAYS(BASE 18 0C) 143.5 89.0 8.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11.0 147.5 399.5 DEWPOINT (MEAN C) 8.0 7.8 10.3 11.0 13.8 14.5 18.1 20.5 16.9 16.7 12.0 7.5 13.1 MIXING RATIO (G/KG) 6.99 6.70 8.03 8.43 10.15 10.99 14.01 16.52 12.48 12.17 9.05 6.58 10.18 VAPOUR PRESSURE (HPA) 11.30 10.82 12.90 13.50 16.15 17.34 21.89 25.75 19.75 19.37 14.54 10.65 16.16 SATURATION DEF. (HPA) 4.26 6.72 10.55 20.42 32.54 43.55 45.22 44.44 46.43 25.00 9.18 4.93 24.44 RELATIVE HUMIDITY (MEAN %) 74 66 59 46 38 32 37 40 34 50 66 72 51 RELATIVE HUMIDITY (MAX. %) 90 88 84 75 60 51 61 66 61 72 86 90 74 RELATIVE HUMIDITY (MIN. %) 52 42 35 24 19 17 18 28 21 35 42 46 32 RELATIVE HUMIDITY (MEAN% 03UTC) 86 84 79 68 55 44 51 64 61 72 79 88 69 RELATIVE HUMIDITY (MEAN% 09UTC) 60 48 41 27 22 20 23 31 22 38 46 57 36 RELATIVE HUMIDITY (MEAN% 15UTC) 68 53 45 31 26 24 27 37 33 53 66 68 44 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 62.0 23.1 3.4 0.0 11.0 0.0 0.0 0.0 0.0 0.0 0.0 36.0 135.5 DAYS WITH PRECIPITATION >=10 2 1 0 0 0 0 0 0 0 0 0 1 4 DAYS WITH PRECIPITATION >= 5 3 2 0 0 1 0 0 0 0 0 0 3 9 DAYS WITH PRECIPITATION >= 1 7 4 3 0 3 0 0 0 0 0 0 5 22 DAYS WITH PRECIPITATION 7 7 10 1 3 0 0 0 0 0 3 8 39 GREATEST DAILY PRECIPITATION 29.0 11.0 1.0 0.0 7.0 0.0 0.0 0.0 0.0 0.0 0.0 18.0 29.0 DAY 7 20 3 ** 4 ** ** ** ** ** ** 9 DAY WITH THUNDER STORM 1 0 1 0 1 0 0 0 0 0 0 2 5 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 3 3 6 9 6 18 12 15 11 0 1 1 85 WIND DIRECTION (PREVAILING) 315 315 315 315 315 315 315 315 315 315 315 315 315 PREVAILING WIND SPEED(KNOTS) 6.8 6.5 7.6 8.1 9.6 13.8 10.6 12.9 9.5 6.0 6.5 5.5 9.0 PREVAILING WIND PERCENT 47.6 38.6 30.4 42.7 37.6 59.6 42.7 40.6 42.7 21.0 30.4 30.2 39.0 CALMS PERCENT OF WIND 15.3 16.1 13.0 4.6 3.3 1.7 2.8 2.8 5.3 10.8 5.4 6.9 7.4 NO. OF WIND OBSERVATION 248 223 247 239 245 240 248 180 150 157 240 248 2665 VECTOR WIND DIRECTION (MEAN) 312 305 266 304 291 308 299 305 307 312 295 297 302 VECTOR WIND MAGNITUDE(KNOTS) 1.9 1.2 1.2 1.0 4.8 9.4 5.7 6.7 5.5 2.0 2.0 2.1 3.6 WIND STEADINESES (MEAN %) 30.2 20.3 19.4 13.5 66.7 83.2 71.2 69.8 73.3 40.8 34.5 42.0 50.7 WIND SPEED (MEAN KNOTS) 6.3 5.9 6.2 7.4 7.2 11.3 8.0 9.6 7.5 4.9 5.8 5.0 7.1 FASTEST WIND DIRECTION 130 310 310 130 290 110 310 330 250 310 130 180 250 FASTEST WIND SPEED (KNOTS) 24 37 30 34 22 30 24 37 46 15 18 18 46 DAY 6 5 13 24 29 10 23 4 10 25 8 19 DAYS WITH SKY CLEAR (0-2)/8 17 14 12 20 17 29 31 31 29 27 18 19 264 DAYS WITH P.CLOUDY (3-6)/8 8 9 16 9 14 1 0 0 1 4 11 11 84 DAYS WITH CLOUDY (7-8)/8 6 5 3 1 0 0 0 0 0 0 1 1 17 DAYS WITH VISIBILITY =< 2 KM 6 2 4 4 4 9 3 8 6 2 1 3 52 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1018.2 1016.6 1013.3 1011.0 1006.8 999.8 997.4 998.7 1005.3 1010.7 1015.4 1018.9 1009.3 MAX. QFE PRESSURE IN HPA 1025.0 1023.4 1020.0 1015.2 1012.9 1005.0 1002.6 1005.2 1010.2 1018.5 1022.8 1027.5 1027.5 DAY-HOUR 10- 6 13- 6 8- 6 4- 6 17- 6 27- 6 7- 6 28- 6 23- 6 28- 6 29- 6 26- 6 MIN. QFE PRESSURE IN HPA 1005.0 999.2 1004.6 1003.6 998.2 993.7 993.3 990.0 1000.5 1002.0 1010.2 1009.2 990.0 DAY-HOUR 7-12 5-12 29-12 24-15 31-21 30-15 1- 0 23- 6 5-15 4-12 26-18 22-12 MEAN QNH PRESSURE IN HPA 1018.7 1017.1 1013.8 1011.5 1007.2 1000.3 997.9 999.2 1005.8 1011.2 1015.9 1019.4 1009.8 MAX. QNH PRESSURE IN HPA 1025.5 1023.9 1020.5 1015.7 1013.4 1005.5 1003.1 1005.7 1010.7 1019.0 1023.3 1028.0 1028.0 DAY-HOUR 10- 6 13- 6 8- 6 4- 6 17- 6 27- 6 7- 6 28- 6 23- 6 28- 6 29- 6 26- 6 MIN. QNH PRESSURE IN HPA 1005.5 999.7 1005.1 1004.1 998.7 994.2 993.8 990.5 1001.0 1002.5 1010.7 1009.7 990.5 DAY-HOUR 7-12 5-12 29-12 24-15 31-21 30-15 1- 0 23- 6 5-15 4-12 26-18 22-12 MEAN QFF PRESSURE IN HPA 1018.9 1017.4 1014.1 1011.8 1007.5 1000.6 998.1 ****** ****** ****** 1016.1 1019.7 ****** MAX. QFF PRESSURE IN HPA 1025.8 1024.2 1020.8 1016.0 1013.6 1005.7 1003.3 ****** ****** ****** 1023.6 1028.3 ****** DAY-HOUR 10- 6 13- 6 8- 6 4- 6 17- 6 27- 6 7- 6 **-** **-** **-** 29- 6 26- 6 MIN. QFF PRESSURE IN HPA 1005.8 1000.0 1005.4 1004.3 998.9 994.4 994.0 ****** ****** ****** 1011.0 1010.0 ****** DAY-HOUR 7-12 5-12 29-12 24-15 31-21 30-21 1- 0 **-** **-** **-** 26-18 22-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1018.1 1016.6 1013.0 1010.6 1006.2 999.4 997.0 ****** ****** ****** 1015.1 1018.8 ****** MAX. QFE PRESSURE IN HPA 1024.0 1022.2 1018.8 1013.4 1010.2 1004.0 1001.0 ****** ****** ****** 1020.9 1025.0 ****** DAY 11 13 14 4 13 7 7 ** ** ** 29 27 MIN. QFE PRESSURE IN HPA 1009.6 1008.5 1007.1 1005.6 1001.2 994.9 993.3 ****** ****** ****** 1011.9 1013.0 ****** DAY 7 5 26 24 31 10 1 ** ** ** 2 14 MEAN QNH PRESSURE IN HPA 1018.6 1017.1 1013.5 1011.1 1006.7 999.9 997.4 ****** ****** ****** 1015.6 1019.3 ****** MAX. QNH PRESSURE IN HPA 1024.5 1022.7 1019.3 1013.9 1010.7 1004.5 1001.5 ****** ****** ****** 1021.4 1025.5 ****** DAY 11 13 14 4 13 7 7 ** ** ** 29 27 MIN. QNH PRESSURE IN HPA 1010.1 1009.0 1007.6 1006.1 1001.7 995.4 993.8 ****** ****** ****** 1012.4 1013.5 ****** DAY 7 5 26 24 31 10 1 ** ** ** 2 14 MEAN QFF PRESSURE IN HPA 1018.8 1017.3 1013.8 1011.3 1006.9 1000.2 997.7 ****** ****** ****** 1015.9 1019.6 ****** MAX. QFF PRESSURE IN HPA 1024.8 1023.0 1019.6 1014.2 1010.9 1004.7 1001.7 ****** ****** ****** 1021.7 1025.8 ****** DAY 11 13 14 4 13 7 7 ** ** ** 29 27 MIN. QFF PRESSURE IN HPA 1010.4 1009.3 1007.9 1006.3 1001.9 995.6 994.0 ****** ****** ****** 1012.7 1013.8 ****** DAY 7 5 26 24 31 10 1 ** ** ** 2 14 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1018.4 1016.9 1013.6 1011.2 1007.1 1000.2 997.7 999.2 1005.5 1010.9 1015.7 1018.9 1009.6 MAX. QFE PRESSURE IN HPA 1023.9 1022.5 1018.9 1014.3 1011.4 1004.8 1002.0 1003.6 1008.8 1017.3 1021.9 1026.0 1026.0 DAY 11 13 8 29 17 7 7 28 23 28 29 26 MIN. QFE PRESSURE IN HPA 1009.6 1005.4 1006.6 1004.9 1002.0 995.8 993.9 994.9 1001.9 1004.8 1012.6 1011.9 993.9 DAY 7 5 29 24 31 10 1 1 6 4 20 15 MEAN QNH PRESSURE IN HPA 1018.9 1017.4 1014.1 1011.7 1007.6 1000.7 998.2 999.7 1006.0 1011.4 1016.2 1019.4 1010.1 MAX. QNH PRESSURE IN HPA 1024.4 1023.0 1019.4 1014.8 1011.9 1005.3 1002.5 1004.1 1009.3 1017.8 1022.4 1026.5 1026.5 DAY 11 13 8 29 17 7 7 28 23 28 29 26 MIN. QNH PRESSURE IN HPA 1010.1 1005.9 1007.1 1005.4 1002.5 996.3 994.4 995.4 1002.4 1005.3 1013.1 1012.4 994.4 DAY 7 5 29 24 31 10 1 1 6 4 20 15 MEAN QFF PRESSURE IN HPA 1019.1 1017.7 1014.3 1012.0 1007.9 1000.9 998.4 999.9 1006.2 1011.7 1016.5 1019.7 1010.4 MAX. QFF PRESSURE IN HPA 1024.7 1023.3 1019.7 1015.1 1012.1 1005.5 1002.7 1004.3 1009.5 1018.1 1022.7 1026.8 1026.8 DAY 11 13 8 29 17 7 7 28 23 28 29 26 MIN. QFF PRESSURE IN HPA 1010.4 1006.2 1007.4 1005.6 1002.7 996.5 994.6 995.6 1002.6 1005.5 1013.4 1012.7 994.6 DAY 7 5 29 24 31 10 1 1 6 4 20 15 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1019.7 1018.1 1014.7 1012.5 1008.4 1000.8 998.5 1000.0 1006.7 1012.1 1017.1 1020.3 1010.7 MAX. QFE PRESSURE IN HPA 1025.0 1023.4 1020.0 1015.2 1012.9 1005.0 1002.6 1005.2 1010.2 1018.5 1022.8 1027.5 1027.5 DAY 10 13 8 4 17 27 7 28 23 28 29 26 MIN. QFE PRESSURE IN HPA 1009.4 1005.6 1006.5 1006.1 1002.3 996.7 994.7 990.0 1002.6 1005.7 1013.8 1012.4 990.0 DAY 7 5 29 24 31 30 1 23 6 4 3 14 MEAN QNH PRESSURE IN HPA 1020.2 1018.6 1015.2 1013.0 1008.8 1001.3 999.0 1000.4 1007.2 1012.6 1017.6 1020.8 1011.2 MAX. QNH PRESSURE IN HPA 1025.5 1023.9 1020.5 1015.7 1013.4 1005.5 1003.1 1005.7 1010.7 1019.0 1023.3 1028.0 1028.0 DAY 10 13 8 4 17 27 7 28 23 28 29 26 MIN. QNH PRESSURE IN HPA 1009.9 1006.1 1007.0 1006.6 1002.8 997.2 995.2 990.5 1003.1 1006.2 1014.3 1012.9 990.5 DAY 7 5 29 24 31 30 1 23 6 4 3 14 MEAN QFF PRESSURE IN HPA 1020.4 1018.9 1015.5 1013.3 1009.0 1001.6 999.3 ****** ****** ****** 1017.8 1021.1 ****** MAX. QFF PRESSURE IN HPA 1025.8 1024.2 1020.8 1016.0 1013.6 1005.7 1003.3 ****** ****** ****** 1023.6 1028.3 ****** DAY 10 13 8 4 17 27 7 ** ** ** 29 26 MIN. QFF PRESSURE IN HPA 1010.2 1006.4 1007.3 1006.8 1003.0 997.4 995.4 ****** ****** ****** 1014.6 1013.2 ****** DAY 7 5 29 24 31 30 1 ** ** ** 3 14 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1018.5 1017.0 1014.0 1011.8 1007.7 1000.5 998.2 999.7 1005.8 1011.0 1015.6 1018.7 1009.9 MAX. QFE PRESSURE IN HPA 1024.2 1022.5 1019.0 1014.9 1012.4 1004.3 1002.1 1004.8 1009.1 1017.2 1021.3 1025.8 1025.8 DAY 10 13 8 4 17 27 7 31 23 27 29 26 MIN. QFE PRESSURE IN HPA 1006.6 1001.0 1005.7 1006.5 1001.4 996.3 994.9 994.7 1001.8 1004.0 1011.9 1010.2 994.7 DAY 7 5 29 24 31 9 1 1 6 4 3 22 MEAN QNH PRESSURE IN HPA 1019.0 1017.5 1014.5 1012.3 1008.1 1000.9 998.6 1000.2 1006.3 1011.5 1016.1 1019.2 1010.3 MAX. QNH PRESSURE IN HPA 1024.7 1023.0 1019.5 1015.4 1012.9 1004.8 1002.6 1005.3 1009.6 1017.7 1021.8 1026.3 1026.3 DAY 10 13 8 4 17 27 7 31 23 27 29 26 MIN. QNH PRESSURE IN HPA 1007.1 1001.5 1006.2 1007.0 1001.9 996.8 995.4 995.2 1002.3 1004.5 1012.4 1010.7 995.2 DAY 7 5 29 24 31 9 1 1 6 4 3 22 MEAN QFF PRESSURE IN HPA 1019.2 1017.8 1014.8 1012.6 1008.3 1001.2 998.9 ****** ****** ****** 1016.4 1019.5 ****** MAX. QFF PRESSURE IN HPA 1025.0 1023.3 1019.8 1015.7 1013.1 1005.0 1002.8 ****** ****** ****** 1022.1 1026.6 ****** DAY 10 13 8 4 17 27 7 ** ** ** 29 26 MIN. QFF PRESSURE IN HPA 1007.4 1001.8 1006.5 1007.2 1002.1 997.0 995.6 ****** ****** ****** 1012.6 1011.0 ****** DAY 7 5 29 24 31 9 1 ** ** ** 3 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1016.9 1015.2 1012.3 1010.0 1006.1 999.3 996.9 998.3 1004.3 1009.5 1014.2 1017.8 1008.4 MAX. QFE PRESSURE IN HPA 1023.1 1020.8 1016.8 1012.5 1011.2 1003.7 1001.0 1003.5 1007.1 1015.8 1019.3 1024.9 1024.9 DAY 10 17 13 11 17 27 10 27 23 27 29 26 MIN. QFE PRESSURE IN HPA 1005.0 999.2 1004.6 1004.1 999.5 994.5 994.5 993.8 1000.9 1002.0 1011.0 1009.2 993.8 DAY 7 5 29 24 31 30 13 1 5 4 3 22 MEAN QNH PRESSURE IN HPA 1017.4 1015.7 1012.8 1010.4 1006.6 999.7 997.4 998.8 1004.8 1010.0 1014.7 1018.3 1008.9 MAX. QNH PRESSURE IN HPA 1023.6 1021.3 1017.3 1013.0 1011.7 1004.2 1001.5 1004.0 1007.6 1016.3 1019.8 1025.4 1025.4 DAY 10 17 13 11 17 27 10 27 23 27 29 26 MIN. QNH PRESSURE IN HPA 1005.5 999.7 1005.1 1004.6 1000.0 995.0 995.0 994.3 1001.4 1002.5 1011.5 1009.7 994.3 DAY 7 5 29 24 31 30 13 1 5 4 3 22 MEAN QFF PRESSURE IN HPA 1017.7 1016.0 1013.0 1010.7 1006.7 1000.0 997.7 ****** ****** ****** 1015.0 1018.6 ****** MAX. QFF PRESSURE IN HPA 1023.9 1021.6 1017.6 1013.3 1011.9 1004.4 1001.7 ****** ****** ****** 1020.1 1025.7 ****** DAY 10 17 13 11 17 27 10 ** ** ** 29 26 MIN. QFF PRESSURE IN HPA 1005.8 1000.0 1005.4 1004.8 1000.2 995.2 995.2 ****** ****** ****** 1011.7 1010.0 ****** DAY 7 5 29 24 31 30 13 ** ** ** 3 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1951 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1017.5 1015.7 1012.4 1009.8 1005.7 999.0 996.4 998.0 1004.3 1009.9 1014.7 1018.4 1008.5 MAX. QFE PRESSURE IN HPA 1023.7 1021.9 1018.1 1012.5 1010.4 1003.5 1001.7 1003.2 1007.2 1016.4 1019.7 1025.3 1025.3 DAY 10 17 13 3 17 27 10 27 25 28 29 26 MIN. QFE PRESSURE IN HPA 1007.4 1003.6 1006.1 1003.6 998.7 993.7 993.4 993.5 1000.5 1003.2 1010.6 1010.4 993.4 DAY 7 5 29 24 31 30 1 1 5 4 26 14 MEAN QNH PRESSURE IN HPA 1018.0 1016.2 1012.8 1010.3 1006.2 999.4 996.9 998.5 1004.8 1010.3 1015.2 1018.9 1009.0 MAX. QNH PRESSURE IN HPA 1024.2 1022.4 1018.6 1013.0 1010.9 1004.0 1002.2 1003.7 1007.7 1016.9 1020.2 1025.8 1025.8 DAY 10 17 13 3 17 27 10 27 25 28 29 26 MIN. QNH PRESSURE IN HPA 1007.9 1004.1 1006.6 1004.1 999.2 994.2 993.9 994.0 1001.0 1003.7 1011.1 1010.9 993.9 DAY 7 5 29 24 31 30 1 1 5 4 26 14 MEAN QFF PRESSURE IN HPA 1018.3 1016.5 1013.1 1010.6 1006.5 999.7 997.1 998.7 1005.1 1010.6 1015.5 1019.2 1009.2 MAX. QFF PRESSURE IN HPA 1024.5 1022.7 1018.9 1013.3 1011.1 1004.2 1002.4 1003.9 1007.9 1017.2 1020.5 1026.1 1026.1 DAY 10 17 13 11 17 27 10 31 25 28 29 26 MIN. QFF PRESSURE IN HPA 1008.2 1004.4 1006.9 1004.3 999.4 994.4 994.1 994.2 1001.2 1003.9 1011.4 1011.2 994.1 DAY 7 5 29 24 31 30 1 1 5 4 26 14 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1018.4 1016.8 1013.5 1011.3 1006.7 999.9 997.3 ****** ****** ****** 1015.4 1019.4 ****** MAX. QFE PRESSURE IN HPA 1024.5 1022.9 1020.0 1013.8 1011.3 1004.0 1000.9 ****** ****** ****** 1020.3 1025.8 ****** DAY 10 17 13 3 17 27 10 ** ** ** 10 26 MIN. QFE PRESSURE IN HPA 1008.3 1009.1 1007.6 1006.5 998.9 993.8 994.6 ****** ****** ****** 1010.2 1011.5 ****** DAY 7 5 25 19 31 30 1 ** ** ** 26 14 MEAN QNH PRESSURE IN HPA 1018.9 1017.3 1014.0 1011.8 1007.2 1000.4 997.8 ****** ****** ****** 1015.9 1019.8 ****** MAX. QNH PRESSURE IN HPA 1025.0 1023.4 1020.5 1014.3 1011.8 1004.5 1001.4 ****** ****** ****** 1020.8 1026.3 ****** DAY 10 17 13 3 17 27 10 ** ** ** 10 26 MIN. QNH PRESSURE IN HPA 1008.8 1009.6 1008.1 1007.0 999.4 994.3 995.1 ****** ****** ****** 1010.7 1012.0 ****** DAY 7 5 25 19 31 30 1 ** ** ** 26 14 MEAN QFF PRESSURE IN HPA 1019.2 1017.6 1014.3 1012.0 1007.4 1000.6 998.0 ****** ****** ****** 1016.2 1020.1 ****** MAX. QFF PRESSURE IN HPA 1025.3 1023.7 1020.8 1014.6 1012.0 1004.7 1001.6 ****** ****** ****** 1021.1 1026.6 ****** DAY 10 17 13 5 17 27 10 ** ** ** 28 26 MIN. QFF PRESSURE IN HPA 1009.1 1009.9 1008.4 1007.2 999.6 994.5 995.3 ****** ****** ****** 1011.0 1012.3 ****** DAY 7 5 25 19 31 30 1 ** ** ** 26 14 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1018.3 1016.9 1013.4 1011.1 1006.4 999.7 997.2 ****** ****** ****** 1015.3 1019.0 ****** MAX. QFE PRESSURE IN HPA 1023.8 1022.8 1019.3 1014.3 1010.7 1003.9 1000.7 ****** ****** ****** 1020.8 1025.5 ****** DAY 10 12 13 3 12 6 6 ** ** ** 28 26 MIN. QFE PRESSURE IN HPA 1009.4 1009.5 1007.0 1006.4 998.2 993.7 994.4 ****** ****** ****** 1011.1 1011.1 ****** DAY 7 4 25 23 31 30 13 ** ** ** 26 14 MEAN QNH PRESSURE IN HPA 1018.8 1017.4 1013.8 1011.6 1006.9 1000.2 997.7 ****** ****** ****** 1015.8 1019.5 ****** MAX. QNH PRESSURE IN HPA 1024.3 1023.3 1019.8 1014.8 1011.2 1004.4 1001.2 ****** ****** ****** 1021.3 1026.0 ****** DAY 10 12 13 3 12 6 6 ** ** ** 28 26 MIN. QNH PRESSURE IN HPA 1009.9 1010.0 1007.5 1006.9 998.7 994.2 994.9 ****** ****** ****** 1011.6 1011.6 ****** DAY 7 4 25 23 31 30 13 ** ** ** 26 14 MEAN QFF PRESSURE IN HPA 1019.1 1017.7 1014.1 1011.9 1007.2 1000.5 997.9 ****** ****** ****** 1016.0 1019.8 ****** MAX. QFF PRESSURE IN HPA 1024.6 1023.6 1020.1 1015.1 1011.4 1004.6 1001.4 ****** ****** ****** 1021.6 1026.3 ****** DAY 10 12 13 3 12 6 6 ** ** ** 28 26 MIN. QFF PRESSURE IN HPA 1010.2 1010.3 1007.8 1007.1 998.9 994.4 995.1 ****** ****** ****** 1011.9 1011.9 ****** DAY 7 4 25 23 31 30 13 ** ** ** 26 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.6 15.6 19.0 24.8 30.9 34.3 36.2 36.4 33.4 26.3 18.2 15.3 25.2 MINIMUN AIR TEMPERATURE (C) 7.0 9.6 11.6 17.4 23.4 25.6 27.9 27.4 24.0 17.3 11.5 10.4 17.8 DAYS WITH MINIMUM TEMP. >=21 0 0 0 3 28 30 31 31 29 5 0 0 157 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS LOWEST(C) 1.0 3.0 2.0 11.0 19.0 23.0 23.0 22.0 20.0 12.0 7.0 4.0 1.0 DAY 7 15 5 16 1 4 15 12 23 29 19 10 MAXIMUM AIR TEMPERATURE (C) 18.7 21.7 26.3 33.3 39.5 42.9 44.7 46.1 43.8 36.9 26.1 21.2 33.4 DAYS WITH MAXIMUM TEMP. >=30 0 0 7 24 31 30 31 31 30 31 11 0 226 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 24.0 28.0 34.0 40.0 45.0 48.0 49.0 48.0 49.0 41.0 34.0 26.0 49.0 DAY 27 8 31 9 20 5 18 11 2 4 1 11 DIF. BETWEEN (MAX.-MIN.) (C) 11.7 12.1 14.7 15.9 16.1 17.3 16.8 18.7 19.8 19.6 14.6 10.8 15.6 MEAN DAILY TEMP. (MDT) (C) 12.8 15.7 18.9 25.3 31.5 34.2 36.3 36.8 33.9 27.1 18.8 15.8 25.6 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 20.0 135.0 324.5 397.5 474.0 489.0 387.0 188.0 24.0 0.0 2439.0 HEATING DEG. DAYS(BASE 18 0C) 160.5 76.0 33.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 43.0 76.5 389.5 DEWPOINT (MEAN C) 8.5 8.9 9.2 15.0 14.5 13.6 16.0 17.5 18.2 14.1 10.4 12.1 13.2 MIXING RATIO (G/KG) 7.07 7.28 7.53 11.19 10.74 10.15 11.98 13.23 13.83 10.32 8.05 9.00 10.03 VAPOUR PRESSURE (HPA) 11.43 11.73 12.10 17.81 17.06 16.05 18.81 20.76 21.81 16.50 12.98 14.53 15.96 SATURATION DEF. (HPA) 3.63 6.83 11.14 15.47 29.95 40.59 43.96 43.16 32.77 20.26 9.42 3.48 21.72 RELATIVE HUMIDITY (MEAN %) 78 68 57 58 42 32 33 36 46 50 65 83 54 RELATIVE HUMIDITY (MAX. %) 91 88 83 82 68 55 52 55 71 72 85 95 75 RELATIVE HUMIDITY (MIN. %) 58 43 33 39 21 16 19 20 22 30 40 63 34 RELATIVE HUMIDITY (MEAN% 03UTC) 87 84 78 73 61 48 46 50 66 66 80 91 69 RELATIVE HUMIDITY (MEAN% 09UTC) 66 49 37 45 25 19 22 24 27 33 46 70 39 RELATIVE HUMIDITY (MEAN% 15UTC) 75 58 44 48 29 24 25 30 36 43 60 82 46 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 32.5 29.0 4.0 29.1 0.0 0.0 0.0 0.0 0.0 0.0 18.5 32.8 145.9 DAYS WITH PRECIPITATION >=10 1 2 0 1 0 0 0 0 0 0 0 1 5 DAYS WITH PRECIPITATION >= 5 3 2 0 1 0 0 0 0 0 0 2 2 10 DAYS WITH PRECIPITATION >= 1 6 3 2 4 0 0 0 0 0 0 3 8 26 DAYS WITH PRECIPITATION 9 3 2 8 0 0 0 0 0 0 3 9 34 GREATEST DAILY PRECIPITATION 13.0 16.0 3.0 20.0 0.0 0.0 0.0 0.0 0.0 0.0 8.5 12.0 20.0 DAY 25 10 2 22 ** ** ** ** ** ** 17 26 DAY WITH THUNDER STORM 0 0 1 5 1 0 0 0 0 0 0 4 11 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 4 2 6 8 9 17 21 14 8 6 3 0 98 WIND DIRECTION (PREVAILING) 315 315 315 270 315 270 270 270 315 270 315 315 315 PREVAILING WIND SPEED(KNOTS) 7.1 5.6 7.4 6.1 10.1 8.8 10.2 6.4 8.1 5.6 7.6 5.8 8.5 PREVAILING WIND PERCENT 23.0 33.9 31.0 18.3 31.0 35.0 56.9 38.3 33.9 37.9 35.4 24.4 27.8 CALMS PERCENT OF WIND 13.7 13.4 11.3 8.8 4.8 3.3 4.0 2.0 10.2 9.7 10.8 4.9 8.0 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 236 248 240 246 2914 VECTOR WIND DIRECTION (MEAN) 286 275 282 234 328 314 297 308 290 300 317 268 304 VECTOR WIND MAGNITUDE(KNOTS) 1.0 0.7 2.2 0.6 3.2 9.8 9.3 5.6 2.8 4.3 4.4 0.9 3.6 WIND STEADINESES (MEAN %) 18.2 12.5 32.4 7.9 41.0 91.6 91.2 70.0 47.5 76.8 74.6 14.8 50.7 WIND SPEED (MEAN KNOTS) 5.5 5.6 6.8 7.6 7.8 10.7 10.2 8.0 5.9 5.6 5.9 6.1 7.1 FASTEST WIND DIRECTION 130 180 160 180 110 340 310 310 330 310 340 180 310 FASTEST WIND SPEED (KNOTS) 20 24 30 24 24 30 37 29 24 18 18 18 37 DAY 2 21 1 13 6 20 9 13 19 7 6 22 DAYS WITH SKY CLEAR (0-2)/8 16 20 20 16 25 29 26 29 30 29 22 16 278 DAYS WITH P.CLOUDY (3-6)/8 7 4 8 11 5 1 5 2 0 2 5 9 59 DAYS WITH CLOUDY (7-8)/8 8 4 3 3 1 0 0 0 0 0 3 6 28 DAYS WITH VISIBILITY =< 2 KM 6 1 2 2 2 2 12 3 5 1 3 4 43 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1018.8 1015.9 1013.1 1010.2 1006.2 1001.3 996.9 997.8 1004.5 1011.8 1016.6 1020.2 1009.4 MAX. QFE PRESSURE IN HPA 1028.7 1022.0 1021.7 1017.7 1011.8 1008.2 1001.3 1002.9 1012.4 1017.8 1026.2 1026.5 1028.7 DAY-HOUR 13- 6 14- 6 14- 6 16- 6 12- 6 9- 9 5- 6 24- 6 28- 6 25- 6 19- 6 31- 6 MIN. QFE PRESSURE IN HPA 1008.7 1001.5 1000.6 999.6 1001.1 993.7 990.0 991.9 998.6 1005.4 1010.2 1012.4 990.0 DAY-HOUR 10-12 22-18 1-15 13-12 23-15 22-15 23- 3 7- 0 4-15 6-12 11-12 5- 6 MEAN QNH PRESSURE IN HPA 1019.3 1016.4 1013.6 1010.7 1006.7 1001.8 997.4 998.3 1005.0 1012.3 1017.1 1020.7 1009.9 MAX. QNH PRESSURE IN HPA 1029.2 1022.5 1022.2 1018.2 1012.3 1008.7 1001.8 1003.4 1012.9 1018.3 1026.7 1027.0 1029.2 DAY-HOUR 13- 6 14- 6 14- 6 16- 6 12- 6 9- 9 5- 6 24- 6 28- 6 25- 6 19- 6 31- 6 MIN. QNH PRESSURE IN HPA 1009.2 1002.0 1001.1 1000.1 1001.6 994.2 990.5 992.4 999.1 1005.9 1010.7 1012.9 990.5 DAY-HOUR 10-12 22-18 1-15 13-12 23-15 22-15 23- 3 7- 0 4-15 6-12 11-12 5- 6 MEAN QFF PRESSURE IN HPA 1019.6 1016.7 1014.0 1011.0 1006.9 1002.0 997.6 998.5 1005.1 1012.5 1017.4 1021.0 1010.2 MAX. QFF PRESSURE IN HPA 1029.5 1022.8 1022.5 1018.5 1012.5 1008.9 1002.0 1003.6 1013.1 1018.6 1027.0 1027.3 1029.5 DAY-HOUR 13- 6 14- 6 14- 6 16- 6 12- 6 9- 9 5- 6 24- 6 28- 6 25- 6 19- 6 31- 6 MIN. QFF PRESSURE IN HPA 1009.5 1002.3 1001.4 1000.3 1001.8 994.4 990.7 992.6 999.3 1006.1 1011.0 1013.2 990.7 DAY-HOUR 10-12 22-18 1-15 13-12 23-15 22-15 23- 3 7- 0 4-15 6-12 11-12 5- 6 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1018.9 1015.7 1012.9 1009.6 1005.6 1000.9 996.4 997.2 1004.0 1011.3 1016.4 1020.0 1009.1 MAX. QFE PRESSURE IN HPA 1027.1 1020.2 1020.1 1016.4 1010.1 1008.0 1000.4 1001.6 1010.5 1015.9 1024.4 1024.4 1027.1 DAY 13 14 5 16 8 1 5 24 28 25 19 31 MIN. QFE PRESSURE IN HPA 1010.7 1005.8 1006.0 1002.3 1001.7 994.5 993.2 991.9 1000.1 1005.8 1011.4 1013.9 991.9 DAY 17 23 11 13 4 23 26 7 7 6 12 23 MEAN QNH PRESSURE IN HPA 1019.4 1016.2 1013.4 1010.1 1006.1 1001.4 996.9 997.7 1004.5 1011.8 1016.9 1020.4 1009.6 MAX. QNH PRESSURE IN HPA 1027.6 1020.7 1020.6 1016.9 1010.6 1008.5 1000.9 1002.1 1011.0 1016.4 1024.9 1024.9 1027.6 DAY 13 14 5 16 8 1 5 24 28 25 19 31 MIN. QNH PRESSURE IN HPA 1011.2 1006.3 1006.5 1002.8 1002.2 995.0 993.7 992.4 1000.6 1006.3 1011.9 1014.4 992.4 DAY 17 23 11 13 4 23 26 7 7 6 12 23 MEAN QFF PRESSURE IN HPA 1019.7 1016.5 1013.8 1010.3 1006.4 1001.6 997.1 997.9 1004.7 1012.0 1017.2 1020.8 1009.8 MAX. QFF PRESSURE IN HPA 1027.9 1021.0 1020.9 1017.2 1010.8 1008.7 1001.1 1002.3 1011.2 1016.7 1025.2 1025.2 1027.9 DAY 13 14 5 16 8 1 5 24 28 25 19 31 MIN. QFF PRESSURE IN HPA 1011.5 1006.6 1006.8 1003.0 1002.4 995.2 993.9 992.6 1000.8 1006.5 1012.2 1014.7 992.6 DAY 17 23 11 13 4 23 26 7 7 6 12 23 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1019.1 1016.1 1013.3 1010.5 1006.5 1001.6 997.0 998.0 1004.7 1012.0 1016.9 1020.4 1009.7 MAX. QFE PRESSURE IN HPA 1027.1 1020.7 1020.5 1017.0 1010.6 1007.2 1000.9 1002.2 1010.9 1016.6 1025.3 1024.6 1027.1 DAY 13 14 5 16 12 1 5 24 28 25 19 31 MIN. QFE PRESSURE IN HPA 1011.2 1004.6 1006.0 1002.6 1002.2 995.1 990.0 992.7 1000.2 1006.5 1012.1 1015.0 990.0 DAY 17 22 11 13 4 23 23 7 4 6 12 23 MEAN QNH PRESSURE IN HPA 1019.6 1016.6 1013.8 1010.9 1006.9 1002.1 997.5 998.5 1005.2 1012.5 1017.4 1020.9 1010.2 MAX. QNH PRESSURE IN HPA 1027.6 1021.2 1021.0 1017.5 1011.1 1007.7 1001.4 1002.7 1011.4 1017.1 1025.8 1025.1 1027.6 DAY 13 14 5 16 12 1 5 24 28 25 19 31 MIN. QNH PRESSURE IN HPA 1011.7 1005.1 1006.5 1003.1 1002.7 995.6 990.5 993.2 1000.7 1007.0 1012.6 1015.5 990.5 DAY 17 22 11 13 4 23 23 7 4 6 12 23 MEAN QFF PRESSURE IN HPA 1019.9 1016.9 1014.3 1011.2 1007.1 1002.3 997.7 998.7 1005.5 1012.8 1017.7 1021.2 1010.4 MAX. QFF PRESSURE IN HPA 1027.9 1021.5 1021.3 1017.8 1011.3 1007.9 1001.6 1002.9 1011.6 1017.4 1026.1 1025.4 1027.9 DAY 13 14 5 16 12 1 5 24 28 25 19 31 MIN. QFF PRESSURE IN HPA 1012.0 1005.4 1006.8 1003.4 1002.9 995.8 990.7 993.4 1000.9 1007.2 1012.9 1015.8 990.7 DAY 17 22 11 13 4 23 23 7 4 6 12 23 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1020.4 1017.3 1014.5 1011.7 1007.5 1002.2 998.0 999.1 1006.0 1013.3 1018.3 1021.4 1010.8 MAX. QFE PRESSURE IN HPA 1028.7 1022.0 1021.7 1017.7 1011.8 1008.0 1001.3 1002.9 1012.4 1017.8 1026.2 1026.5 1028.7 DAY 13 14 14 16 12 1 5 24 28 25 19 31 MIN. QFE PRESSURE IN HPA 1012.6 1006.2 1007.3 1002.8 1003.5 995.3 994.8 994.1 1001.6 1007.4 1013.5 1012.4 994.1 DAY 10 22 1 13 23 22 26 7 4 6 11 5 MEAN QNH PRESSURE IN HPA 1020.9 1017.8 1014.9 1012.2 1008.0 1002.7 998.5 999.5 1006.5 1013.8 1018.8 1021.9 1011.3 MAX. QNH PRESSURE IN HPA 1029.2 1022.5 1022.2 1018.2 1012.3 1008.5 1001.8 1003.4 1012.9 1018.3 1026.7 1027.0 1029.2 DAY 13 14 14 16 12 1 5 24 28 25 19 31 MIN. QNH PRESSURE IN HPA 1013.1 1006.7 1007.8 1003.3 1004.0 995.8 995.3 994.6 1002.1 1007.9 1014.0 1012.9 994.6 DAY 10 22 1 13 23 22 26 7 4 6 11 5 MEAN QFF PRESSURE IN HPA 1021.2 1018.1 1015.5 1012.4 1008.3 1003.0 998.8 999.8 1006.6 1014.1 1019.1 1022.1 1011.6 MAX. QFF PRESSURE IN HPA 1029.5 1022.8 1022.5 1018.5 1012.5 1008.7 1002.0 1003.6 1013.1 1018.6 1027.0 1027.3 1029.5 DAY 13 14 14 16 12 1 5 24 28 25 19 31 MIN. QFF PRESSURE IN HPA 1013.4 1007.0 1008.4 1003.5 1004.2 996.0 995.5 994.8 1002.3 1008.1 1014.3 1013.2 994.8 DAY 10 22 24 13 23 22 26 7 4 6 11 5 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1019.0 1016.5 1013.7 1010.9 1006.9 1001.9 997.7 998.5 1005.1 1012.0 1016.7 1020.5 1010.0 MAX. QFE PRESSURE IN HPA 1027.2 1021.3 1021.6 1017.4 1011.2 1008.2 1001.0 1002.6 1010.7 1016.5 1025.3 1025.1 1027.2 DAY 13 14 5 15 12 9 5 24 28 31 19 31 MIN. QFE PRESSURE IN HPA 1010.6 1004.8 1004.7 1000.5 1002.6 995.3 994.2 993.9 1000.8 1006.8 1011.8 1015.0 993.9 DAY 10 22 1 13 23 22 26 7 4 6 11 22 MEAN QNH PRESSURE IN HPA 1019.5 1017.0 1014.2 1011.4 1007.4 1002.4 998.1 999.0 1005.6 1012.5 1017.2 1020.9 1010.4 MAX. QNH PRESSURE IN HPA 1027.7 1021.8 1022.1 1017.9 1011.7 1008.7 1001.5 1003.1 1011.2 1017.0 1025.8 1025.6 1027.7 DAY 13 14 5 15 12 9 5 24 28 31 19 31 MIN. QNH PRESSURE IN HPA 1011.1 1005.3 1005.2 1001.0 1003.1 995.8 994.7 994.4 1001.3 1007.3 1012.3 1015.5 994.4 DAY 10 22 1 13 23 22 26 7 4 6 11 22 MEAN QFF PRESSURE IN HPA 1019.8 1017.3 1014.8 1011.7 1007.7 1002.7 998.4 999.2 1005.8 1012.8 1017.5 1021.2 1010.7 MAX. QFF PRESSURE IN HPA 1028.0 1022.1 1022.4 1018.2 1011.9 1008.9 1001.7 1003.3 1011.4 1017.3 1026.1 1025.9 1028.0 DAY 13 14 5 15 12 9 5 24 28 31 19 31 MIN. QFF PRESSURE IN HPA 1011.4 1005.6 1007.7 1001.2 1003.3 996.0 994.9 994.6 1001.5 1007.5 1012.6 1015.8 994.6 DAY 10 22 24 13 23 22 26 7 4 6 11 22 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1017.5 1014.7 1012.0 1009.2 1005.5 1000.8 996.4 997.1 1003.5 1010.8 1015.6 1019.4 1008.6 MAX. QFE PRESSURE IN HPA 1025.5 1019.6 1019.7 1016.3 1009.6 1007.0 999.5 1000.9 1009.4 1015.6 1024.0 1024.5 1025.5 DAY 13 14 5 15 21 9 6 24 27 31 19 31 MIN. QFE PRESSURE IN HPA 1008.7 1002.7 1001.8 999.6 1001.4 994.5 993.3 992.7 998.8 1005.4 1010.2 1015.0 992.7 DAY 10 22 1 13 23 22 27 6 4 6 11 27 MEAN QNH PRESSURE IN HPA 1018.0 1015.2 1012.5 1009.7 1005.9 1001.3 996.9 997.6 1004.0 1011.3 1016.1 1019.9 1009.0 MAX. QNH PRESSURE IN HPA 1026.0 1020.1 1020.2 1016.8 1010.1 1007.5 1000.0 1001.4 1009.9 1016.1 1024.5 1025.0 1026.0 DAY 13 14 5 15 21 9 6 24 27 31 19 31 MIN. QNH PRESSURE IN HPA 1009.2 1003.2 1002.3 1000.1 1001.9 995.0 993.8 993.2 999.3 1005.9 1010.7 1015.5 993.2 DAY 10 22 1 13 23 22 27 6 4 6 11 27 MEAN QFF PRESSURE IN HPA 1018.2 1015.5 1012.8 1010.0 1006.2 1001.6 997.1 997.8 1004.2 1011.6 1016.4 1020.1 1009.3 MAX. QFF PRESSURE IN HPA 1026.3 1020.4 1020.5 1017.1 1010.3 1007.7 1000.2 1001.6 1010.1 1016.4 1024.8 1025.3 1026.3 DAY 13 14 5 15 21 9 6 24 27 31 19 31 MIN. QFF PRESSURE IN HPA 1009.5 1003.5 1002.6 1000.3 1002.1 995.2 994.0 993.4 999.5 1006.1 1011.0 1015.8 993.4 DAY 10 22 1 13 23 22 27 6 4 6 11 27 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1952 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1018.0 1015.0 1012.1 1009.2 1005.2 1000.4 996.1 996.9 1003.5 1011.1 1016.1 1019.9 1008.6 MAX. QFE PRESSURE IN HPA 1025.5 1019.8 1019.3 1016.0 1009.5 1006.3 999.0 1001.1 1009.7 1016.2 1023.7 1024.6 1025.5 DAY 13 14 5 15 21 9 6 30 30 31 19 31 MIN. QFE PRESSURE IN HPA 1009.1 1001.8 1000.6 1000.7 1001.1 993.7 993.1 992.0 998.6 1006.0 1010.6 1014.7 992.0 DAY 10 22 1 13 23 22 25 6 4 6 11 22 MEAN QNH PRESSURE IN HPA 1018.5 1015.5 1012.6 1009.7 1005.7 1000.9 996.5 997.3 1004.0 1011.6 1016.6 1020.3 1009.1 MAX. QNH PRESSURE IN HPA 1026.0 1020.3 1019.8 1016.5 1010.0 1006.8 999.5 1001.6 1010.2 1016.7 1024.2 1025.1 1026.0 DAY 13 14 5 15 21 9 6 30 30 31 19 31 MIN. QNH PRESSURE IN HPA 1009.6 1002.3 1001.1 1001.2 1001.6 994.2 993.6 992.5 999.1 1006.5 1011.1 1015.2 992.5 DAY 10 22 1 13 23 22 25 6 4 6 11 22 MEAN QFF PRESSURE IN HPA 1018.8 1015.8 1012.9 1009.9 1005.9 1001.2 996.8 997.6 1004.1 1011.8 1016.9 1020.6 1009.4 MAX. QFF PRESSURE IN HPA 1026.3 1020.6 1020.1 1016.8 1010.2 1007.0 999.7 1001.8 1010.4 1017.0 1024.5 1025.4 1026.3 DAY 13 14 5 15 21 9 6 30 30 31 19 31 MIN. QFF PRESSURE IN HPA 1009.9 1002.6 1001.4 1001.4 1001.8 994.4 993.8 992.7 999.3 1006.7 1011.4 1015.5 992.7 DAY 10 22 1 13 23 22 25 6 4 6 11 22 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1018.9 1016.2 1013.2 1010.5 1006.3 1001.4 997.0 998.0 1004.6 1011.9 1016.7 1020.4 1009.6 MAX. QFE PRESSURE IN HPA 1026.5 1020.3 1020.5 1017.1 1010.7 1007.2 1000.3 1002.6 1011.2 1016.8 1024.5 1025.0 1026.5 DAY 12 14 5 15 7 9 4 30 30 31 18 31 MIN. QFE PRESSURE IN HPA 1010.3 1001.5 1002.6 1004.1 1002.3 994.5 993.8 992.4 1000.2 1006.9 1011.3 1014.9 992.4 DAY 10 22 1 13 23 22 27 6 4 5 11 22 MEAN QNH PRESSURE IN HPA 1019.4 1016.7 1013.7 1011.0 1006.8 1001.8 997.5 998.5 1005.1 1012.4 1017.2 1020.9 1010.1 MAX. QNH PRESSURE IN HPA 1027.0 1020.8 1021.0 1017.6 1011.2 1007.7 1000.8 1003.1 1011.7 1017.3 1025.0 1025.5 1027.0 DAY 12 14 5 15 7 9 4 30 30 31 18 31 MIN. QNH PRESSURE IN HPA 1010.8 1002.0 1003.1 1004.6 1002.8 995.0 994.3 992.9 1000.7 1007.4 1011.8 1015.4 992.9 DAY 10 22 1 13 23 22 27 6 4 5 11 22 MEAN QFF PRESSURE IN HPA 1019.7 1017.0 1014.0 1011.3 1007.0 1002.1 997.7 998.7 1005.3 1012.7 1017.4 1021.2 1010.3 MAX. QFF PRESSURE IN HPA 1027.3 1021.1 1021.3 1017.9 1011.4 1007.9 1001.0 1003.3 1011.9 1017.6 1025.3 1025.8 1027.3 DAY 12 14 5 15 7 9 4 30 30 31 18 31 MIN. QFF PRESSURE IN HPA 1011.1 1002.3 1003.4 1004.8 1003.0 995.2 994.5 993.1 1000.9 1007.6 1012.1 1015.7 993.1 DAY 10 22 1 13 23 22 27 6 4 5 11 22 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1018.8 1015.9 1013.4 1010.4 1006.1 1001.1 996.7 997.7 1004.5 1011.8 1016.5 1020.1 1009.4 MAX. QFE PRESSURE IN HPA 1026.7 1020.2 1020.4 1017.3 1010.3 1007.4 1000.0 1002.1 1010.8 1016.6 1024.9 1024.4 1026.7 DAY 12 14 4 15 7 9 5 31 30 31 18 31 MIN. QFE PRESSURE IN HPA 1011.1 1004.8 1006.4 1004.8 1002.0 995.1 993.5 992.6 1000.0 1006.2 1011.3 1014.0 992.6 DAY 16 22 17 12 3 22 25 6 4 5 11 22 MEAN QNH PRESSURE IN HPA 1019.3 1016.4 1013.9 1010.9 1006.6 1001.6 997.2 998.2 1005.0 1012.2 1017.0 1020.6 1009.9 MAX. QNH PRESSURE IN HPA 1027.2 1020.7 1020.9 1017.8 1010.8 1007.9 1000.5 1002.6 1011.3 1017.1 1025.4 1024.9 1027.2 DAY 12 14 4 15 7 9 5 31 30 31 18 31 MIN. QNH PRESSURE IN HPA 1011.6 1005.3 1006.9 1005.3 1002.5 995.6 994.0 993.1 1000.5 1006.7 1011.8 1014.5 993.1 DAY 16 22 17 12 3 22 25 6 4 5 11 22 MEAN QFF PRESSURE IN HPA 1019.5 1016.7 1014.2 1011.1 1006.9 1001.8 997.4 998.5 1005.2 1012.5 1017.3 1020.9 1010.2 MAX. QFF PRESSURE IN HPA 1027.5 1021.0 1021.2 1018.1 1011.0 1008.1 1000.7 1002.8 1011.5 1017.4 1025.7 1025.2 1027.5 DAY 12 14 4 15 7 9 5 31 30 31 18 31 MIN. QFF PRESSURE IN HPA 1011.9 1005.6 1007.2 1005.5 1002.7 995.8 994.2 993.3 1000.7 1006.9 1012.1 1014.8 993.3 DAY 16 22 17 12 3 22 25 6 4 5 11 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 14.1 14.8 16.3 25.1 30.3 34.9 36.1 35.7 31.6 26.8 19.0 10.8 24.6 MINIMUN AIR TEMPERATURE (C) 8.2 9.3 9.6 17.8 21.7 26.0 27.0 26.6 20.9 18.5 13.4 5.0 17.0 DAYS WITH MINIMUM TEMP. >=21 0 0 0 6 20 30 31 31 17 8 3 0 146 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 2 2 TEMPERATURE RECORDS LOWEST(C) 3.0 4.0 3.0 13.0 17.0 21.0 23.0 22.0 17.0 12.0 2.0 -1.0 -1.0 DAY 1 13 25 4 10 1 1 25 13 29 24 22 MAXIMUM AIR TEMPERATURE (C) 21.1 21.1 22.6 32.6 38.7 43.3 44.5 44.5 42.3 36.9 26.1 17.3 32.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 22 31 30 31 31 30 28 12 0 215 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 26.0 25.0 29.0 38.0 43.0 46.0 49.0 48.0 47.0 43.0 33.0 22.0 49.0 DAY 21 16 30 20 19 19 22 13 1 2 10 29 DIF. BETWEEN (MAX.-MIN.) (C) 12.9 11.8 13.0 14.8 17.0 17.3 17.5 17.9 21.4 18.4 12.7 12.3 15.6 MEAN DAILY TEMP. (MDT) (C) 14.7 15.2 16.1 25.2 30.2 34.6 35.7 35.5 31.6 27.7 19.7 11.2 24.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 1.0 128.5 286.5 409.5 456.5 451.0 318.0 207.0 39.0 0.0 2297.0 HEATING DEG. DAYS(BASE 18 0C) 111.5 81.0 74.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 43.5 212.0 522.5 DEWPOINT (MEAN C) 8.4 9.6 7.6 13.6 13.6 15.5 20.5 19.3 19.7 14.8 11.4 5.0 13.2 MIXING RATIO (G/KG) 7.12 7.63 6.73 10.02 10.06 11.68 16.35 14.74 15.16 11.02 9.12 5.60 10.43 VAPOUR PRESSURE (HPA) 11.50 12.30 10.85 16.00 16.01 18.43 25.43 23.08 23.86 17.58 14.65 9.10 16.57 SATURATION DEF. (HPA) 5.27 5.09 8.46 17.50 29.23 40.44 36.99 37.96 26.40 20.02 8.84 4.44 20.05 RELATIVE HUMIDITY (MEAN %) 72 74 61 54 40 36 44 42 52 54 64 70 55 RELATIVE HUMIDITY (MAX. %) 90 91 84 80 65 57 66 66 74 83 83 87 77 RELATIVE HUMIDITY (MIN. %) 45 50 38 31 21 19 28 23 35 24 41 49 34 RELATIVE HUMIDITY (MEAN% 03UTC) 87 87 80 75 58 51 62 60 67 76 76 81 72 RELATIVE HUMIDITY (MEAN% 09UTC) 58 59 45 36 24 23 31 26 39 29 49 56 40 RELATIVE HUMIDITY (MEAN% 15UTC) 68 64 49 41 28 26 35 33 45 44 60 67 47 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 5.1 44.5 47.4 17.1 2.0 0.0 0.0 0.0 0.0 0.0 14.2 36.6 166.9 DAYS WITH PRECIPITATION >=10 0 1 1 1 0 0 0 0 0 0 0 1 4 DAYS WITH PRECIPITATION >= 5 0 2 1 1 0 0 0 0 0 0 1 2 7 DAYS WITH PRECIPITATION >= 1 2 7 4 3 1 0 0 0 0 0 3 3 23 DAYS WITH PRECIPITATION 6 9 8 8 3 0 0 0 0 2 6 9 51 GREATEST DAILY PRECIPITATION 3.0 26.0 42.0 12.0 2.0 0.0 0.0 0.0 0.0 0.0 7.2 29.0 42.0 DAY 31 11 2 9 31 ** ** ** ** ** 29 14 DAY WITH THUNDER STORM 0 3 4 6 2 0 0 0 0 1 6 1 23 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 3 1 3 8 9 13 11 11 3 7 5 0 74 WIND DIRECTION (PREVAILING) 315 315 315 315 315 315 315 315 315 180 315 315 315 PREVAILING WIND SPEED(KNOTS) 3.3 9.2 8.7 8.9 12.8 14.6 13.9 11.9 10.4 6.3 8.3 6.5 10.3 PREVAILING WIND PERCENT 36.3 39.7 46.4 24.2 39.9 70.8 53.0 47.2 36.7 21.0 34.6 39.5 40.5 CALMS PERCENT OF WIND 5.2 4.9 7.3 7.9 6.5 7.1 7.3 9.7 19.6 19.4 7.9 15.3 9.9 NO. OF WIND OBSERVATION 248 224 248 240 248 240 247 248 240 248 240 248 2919 VECTOR WIND DIRECTION (MEAN) 319 292 322 327 309 312 304 308 310 297 298 322 310 VECTOR WIND MAGNITUDE(KNOTS) 0.6 2.0 3.6 1.7 5.6 10.5 6.4 6.9 4.4 1.0 1.3 3.1 3.9 WIND STEADINESES (MEAN %) 17.6 25.3 48.6 23.6 65.9 92.1 65.3 78.4 75.9 18.9 15.9 63.3 52.7 WIND SPEED (MEAN KNOTS) 3.4 7.9 7.4 7.2 8.5 11.4 9.8 8.8 5.8 5.3 8.2 4.9 7.4 FASTEST WIND DIRECTION 130 130 330 20 310 330 330 340 330 50 200 310 310 FASTEST WIND SPEED (KNOTS) 24 37 30 37 44 37 44 37 44 37 37 18 44 DAY 8 10 13 24 8 21 3 3 10 25 18 20 DAYS WITH SKY CLEAR (0-2)/8 12 8 15 14 17 26 28 30 30 21 12 14 227 DAYS WITH P.CLOUDY (3-6)/8 17 11 12 11 12 3 3 1 0 8 10 10 98 DAYS WITH CLOUDY (7-8)/8 2 9 4 5 2 1 0 0 0 2 8 7 40 DAYS WITH VISIBILITY =< 2 KM 6 1 1 3 5 5 6 4 2 6 4 1 44 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1018.5 1016.9 1016.2 1010.6 1007.2 1001.0 996.5 998.6 1004.9 1011.6 1017.5 1021.0 1010.0 MAX. QFE PRESSURE IN HPA 1028.9 1026.2 1025.3 1018.2 1010.5 1007.3 1000.4 1007.9 1012.1 1018.9 1026.5 1029.7 1029.7 DAY-HOUR 2- 6 15- 6 9- 6 10-12 1- 6 6- 6 18- 6 31- 6 30- 6 27- 6 23- 9 22- 6 MIN. QFE PRESSURE IN HPA 1008.5 1002.1 1005.4 1003.8 1002.3 994.2 993.5 993.1 998.0 1005.7 1008.1 1013.2 993.1 DAY-HOUR 11-12 2- 3 12-15 25-12 7-12 28- 0 23-15 5- 0 2-15 3-12 19-12 14-12 MEAN QNH PRESSURE IN HPA 1019.0 1017.4 1016.7 1011.0 1007.7 1001.5 996.9 999.0 1005.4 1012.1 1018.0 1021.5 1010.5 MAX. QNH PRESSURE IN HPA 1029.4 1026.7 1025.8 1018.7 1011.0 1007.8 1000.9 1008.4 1012.6 1019.4 1027.0 1030.2 1030.2 DAY-HOUR 2- 6 15- 6 9- 6 10-12 1- 6 6- 6 18- 6 31- 6 30- 6 27- 6 23- 9 22- 6 MIN. QNH PRESSURE IN HPA 1009.0 1002.6 1005.9 1004.3 1002.8 994.7 994.0 993.6 998.5 1006.2 1008.6 1013.7 993.6 DAY-HOUR 11-12 2- 3 12-15 25-12 7-12 28- 0 23-15 5- 0 2-15 3-12 19-12 14-12 MEAN QFF PRESSURE IN HPA 1019.3 1017.7 1017.0 1011.3 1007.9 1001.7 997.2 999.3 1005.6 1012.4 1018.3 1021.8 1010.8 MAX. QFF PRESSURE IN HPA 1029.7 1027.0 1026.1 1019.0 1011.2 1008.0 1001.1 1008.6 1012.8 1019.7 1027.3 1030.5 1030.5 DAY-HOUR 2- 6 15- 6 9- 6 10-12 1- 6 6- 6 18- 6 31- 6 30- 6 27- 6 23- 9 22- 6 MIN. QFF PRESSURE IN HPA 1009.3 1002.9 1006.2 1004.5 1003.0 994.9 994.2 993.8 998.7 1006.4 1008.9 1014.0 993.8 DAY-HOUR 11-12 2- 3 12-15 25-12 7-12 28- 0 23-15 5- 0 2-15 3-12 19-12 14-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1018.5 1016.5 1015.6 1010.0 1006.8 1000.5 996.0 997.9 1004.4 1011.1 1017.2 1020.9 1009.6 MAX. QFE PRESSURE IN HPA 1027.1 1024.5 1023.0 1016.1 1009.4 1005.7 998.8 1005.9 1010.0 1016.1 1025.7 1028.7 1028.7 DAY 3 16 28 3 15 6 18 31 30 26 23 23 MIN. QFE PRESSURE IN HPA 1009.2 1004.0 1007.0 1005.1 1003.4 994.2 993.6 993.1 999.4 1006.8 1010.3 1016.1 993.1 DAY 11 2 20 20 29 28 12 5 2 3 19 29 MEAN QNH PRESSURE IN HPA 1019.0 1017.0 1016.1 1010.5 1007.3 1001.0 996.5 998.4 1004.9 1011.6 1017.7 1021.4 1010.1 MAX. QNH PRESSURE IN HPA 1027.6 1025.0 1023.5 1016.6 1009.9 1006.2 999.3 1006.4 1010.5 1016.6 1026.2 1029.2 1029.2 DAY 3 16 28 3 15 6 18 31 30 26 23 23 MIN. QNH PRESSURE IN HPA 1009.7 1004.5 1007.5 1005.6 1003.9 994.7 994.1 993.6 999.9 1007.3 1010.8 1016.6 993.6 DAY 11 2 20 20 29 28 12 5 2 3 19 29 MEAN QFF PRESSURE IN HPA 1019.3 1017.3 1016.3 1010.8 1007.6 1001.3 996.8 998.6 1005.1 1011.9 1017.9 1021.7 1010.4 MAX. QFF PRESSURE IN HPA 1027.9 1025.3 1023.8 1016.9 1010.1 1006.4 999.5 1006.6 1010.7 1016.9 1026.5 1029.5 1029.5 DAY 3 16 28 3 15 6 18 31 30 26 23 23 MIN. QFF PRESSURE IN HPA 1010.0 1004.8 1007.8 1005.8 1004.1 994.9 994.3 993.8 1000.1 1007.5 1011.1 1016.9 993.8 DAY 11 2 20 20 29 28 12 5 2 3 19 29 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1018.8 1016.8 1016.4 1010.7 1007.4 1001.1 996.6 998.8 1005.1 1011.8 1017.4 1021.2 1010.2 MAX. QFE PRESSURE IN HPA 1027.7 1025.0 1023.5 1016.8 1009.8 1006.4 999.7 1006.8 1010.5 1016.9 1026.0 1028.3 1028.3 DAY 3 16 9 3 15 6 18 31 30 27 23 23 MIN. QFE PRESSURE IN HPA 1009.2 1002.1 1008.8 1005.3 1004.3 994.9 994.0 994.0 1000.1 1007.4 1010.0 1015.8 994.0 DAY 11 2 20 20 29 28 5 5 2 3 5 14 MEAN QNH PRESSURE IN HPA 1019.3 1017.3 1016.9 1011.2 1007.9 1001.6 997.1 999.3 1005.6 1012.3 1017.9 1021.7 1010.7 MAX. QNH PRESSURE IN HPA 1028.2 1025.5 1024.0 1017.3 1010.3 1006.9 1000.2 1007.3 1011.0 1017.4 1026.5 1028.8 1028.8 DAY 3 16 9 3 15 6 18 31 30 27 23 23 MIN. QNH PRESSURE IN HPA 1009.7 1002.6 1009.3 1005.8 1004.8 995.4 994.5 994.5 1000.6 1007.9 1010.5 1016.3 994.5 DAY 11 2 20 20 29 28 5 5 2 3 5 14 MEAN QFF PRESSURE IN HPA 1019.6 1017.6 1017.2 1011.4 1008.2 1001.8 997.4 999.5 1005.8 1012.6 1018.2 1022.0 1010.9 MAX. QFF PRESSURE IN HPA 1028.5 1025.8 1024.3 1017.6 1010.5 1007.1 1000.4 1007.5 1011.3 1017.7 1026.8 1029.1 1029.1 DAY 3 16 9 3 15 6 18 31 30 27 23 23 MIN. QFF PRESSURE IN HPA 1010.0 1002.9 1009.6 1006.0 1005.0 995.6 994.7 994.7 1000.8 1008.1 1010.8 1016.6 994.7 DAY 11 2 20 20 29 28 5 5 2 3 19 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1020.1 1018.3 1017.6 1011.9 1008.3 1001.8 997.5 999.8 1006.3 1013.2 1019.0 1022.4 1011.4 MAX. QFE PRESSURE IN HPA 1028.9 1026.2 1025.3 1017.1 1010.5 1007.3 1000.4 1007.9 1012.1 1018.9 1026.0 1029.7 1029.7 DAY 2 15 9 1 1 6 18 31 30 27 23 22 MIN. QFE PRESSURE IN HPA 1011.0 1007.9 1010.7 1007.4 1006.1 995.5 994.7 994.9 1001.1 1008.2 1010.7 1016.2 994.7 DAY 11 2 20 20 12 28 6 5 2 3 19 14 MEAN QNH PRESSURE IN HPA 1020.6 1018.8 1018.1 1012.4 1008.8 1002.3 997.9 1000.3 1006.8 1013.7 1019.5 1022.9 1011.8 MAX. QNH PRESSURE IN HPA 1029.4 1026.7 1025.8 1017.6 1011.0 1007.8 1000.9 1008.4 1012.6 1019.4 1026.5 1030.2 1030.2 DAY 2 15 9 1 1 6 18 31 30 27 23 22 MIN. QNH PRESSURE IN HPA 1011.5 1008.4 1011.2 1007.9 1006.6 996.0 995.2 995.4 1001.6 1008.7 1011.2 1016.7 995.2 DAY 11 2 20 20 12 28 6 5 2 3 19 14 MEAN QFF PRESSURE IN HPA 1020.9 1019.1 1018.4 1012.7 1009.1 1002.5 998.2 1000.5 1007.1 1013.9 1019.8 1023.2 1012.1 MAX. QFF PRESSURE IN HPA 1029.7 1027.0 1026.1 1017.9 1011.2 1008.0 1001.1 1008.6 1012.8 1019.7 1026.8 1030.5 1030.5 DAY 2 15 9 1 1 6 18 31 30 27 23 22 MIN. QFF PRESSURE IN HPA 1011.8 1008.7 1011.5 1008.1 1006.8 996.2 995.4 995.6 1001.8 1008.9 1011.5 1017.0 995.4 DAY 11 2 20 20 12 28 6 5 2 3 19 14 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1018.6 1017.5 1016.8 1011.3 1007.8 1001.6 997.1 999.2 1005.5 1012.0 1017.8 1021.2 1010.5 MAX. QFE PRESSURE IN HPA 1027.3 1025.6 1023.8 1017.4 1010.3 1006.8 1000.1 1006.7 1010.9 1018.1 1026.5 1028.1 1028.1 DAY 2 16 9 3 15 6 18 30 30 27 23 22 MIN. QFE PRESSURE IN HPA 1010.0 1010.1 1008.4 1006.5 1005.3 995.4 995.1 994.8 1000.4 1007.2 1009.4 1014.5 994.8 DAY 23 2 12 20 7 28 11 5 2 3 19 14 MEAN QNH PRESSURE IN HPA 1019.1 1017.9 1017.3 1011.8 1008.3 1002.0 997.6 999.7 1006.0 1012.5 1018.3 1021.7 1011.0 MAX. QNH PRESSURE IN HPA 1027.8 1026.1 1024.3 1017.9 1010.8 1007.3 1000.6 1007.2 1011.4 1018.6 1027.0 1028.6 1028.6 DAY 2 16 9 3 15 6 18 30 30 27 23 22 MIN. QNH PRESSURE IN HPA 1010.5 1010.6 1008.9 1007.0 1005.8 995.9 995.6 995.3 1000.9 1007.7 1009.9 1015.0 995.3 DAY 23 2 12 20 7 28 11 5 2 3 19 14 MEAN QFF PRESSURE IN HPA 1019.4 1018.2 1017.6 1012.0 1008.5 1002.3 997.8 999.9 1006.2 1012.8 1018.6 1022.0 1011.3 MAX. QFF PRESSURE IN HPA 1028.1 1026.4 1024.6 1018.2 1011.0 1007.5 1000.8 1007.4 1011.6 1018.9 1027.3 1028.9 1028.9 DAY 2 16 9 3 15 6 18 30 30 27 23 22 MIN. QFF PRESSURE IN HPA 1010.8 1010.9 1009.2 1007.2 1006.0 996.1 995.8 995.5 1001.1 1007.9 1010.2 1015.3 995.5 DAY 23 2 12 20 7 28 11 5 2 3 19 14 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1017.4 1016.0 1015.3 1009.9 1006.4 1000.6 996.0 998.0 1004.1 1010.6 1016.4 1019.8 1009.2 MAX. QFE PRESSURE IN HPA 1026.4 1023.8 1022.7 1018.2 1009.5 1005.9 999.0 1005.2 1009.6 1016.4 1023.7 1027.3 1027.3 DAY 2 16 28 10 15 5 18 30 30 27 23 22 MIN. QFE PRESSURE IN HPA 1008.5 1009.5 1006.1 1003.8 1002.3 994.8 994.0 993.5 998.6 1005.7 1008.1 1013.2 993.5 DAY 11 1 20 25 7 28 24 5 2 3 19 14 MEAN QNH PRESSURE IN HPA 1017.9 1016.5 1015.8 1010.4 1006.9 1001.1 996.5 998.5 1004.5 1011.1 1016.9 1020.3 1009.7 MAX. QNH PRESSURE IN HPA 1026.9 1024.3 1023.2 1018.7 1010.0 1006.4 999.5 1005.7 1010.1 1016.9 1024.2 1027.8 1027.8 DAY 2 16 28 10 15 5 18 30 30 27 23 22 MIN. QNH PRESSURE IN HPA 1009.0 1010.0 1006.6 1004.3 1002.8 995.3 994.5 994.0 999.1 1006.2 1008.6 1013.7 994.0 DAY 11 1 20 25 7 28 24 5 2 3 19 14 MEAN QFF PRESSURE IN HPA 1018.2 1016.8 1016.0 1010.7 1007.2 1001.3 996.7 998.7 1004.8 1011.4 1017.2 1020.6 1010.0 MAX. QFF PRESSURE IN HPA 1027.2 1024.6 1023.5 1019.0 1010.2 1006.6 999.7 1005.9 1010.3 1017.2 1024.5 1028.1 1028.1 DAY 2 16 28 10 15 5 18 30 30 27 23 22 MIN. QFF PRESSURE IN HPA 1009.3 1010.3 1006.9 1004.5 1003.0 995.5 994.7 994.2 999.3 1006.4 1008.9 1014.0 994.2 DAY 11 1 20 25 7 28 24 5 2 3 19 14 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1953 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1017.9 1016.3 1015.3 1009.4 1006.4 1000.2 995.6 997.7 1004.0 1010.9 1016.9 1020.4 1009.3 MAX. QFE PRESSURE IN HPA 1027.1 1024.2 1022.2 1015.5 1009.0 1005.6 998.6 1005.4 1009.6 1016.5 1024.8 1027.7 1027.7 DAY 2 15 9 3 15 5 18 30 30 27 29 22 MIN. QFE PRESSURE IN HPA 1008.9 1008.9 1005.4 1003.9 1003.2 994.4 993.5 993.4 998.0 1006.2 1010.9 1015.4 993.4 DAY 11 1 12 25 7 27 23 4 2 3 19 14 MEAN QNH PRESSURE IN HPA 1018.4 1016.8 1015.8 1009.9 1006.9 1000.7 996.1 998.1 1004.5 1011.4 1017.4 1020.9 1009.7 MAX. QNH PRESSURE IN HPA 1027.6 1024.7 1022.7 1016.0 1009.5 1006.1 999.1 1005.9 1010.1 1017.0 1025.3 1028.2 1028.2 DAY 2 15 9 3 15 5 18 30 30 27 29 22 MIN. QNH PRESSURE IN HPA 1009.4 1009.4 1005.9 1004.4 1003.7 994.9 994.0 993.9 998.5 1006.7 1011.4 1015.9 993.9 DAY 11 1 12 25 7 27 23 4 2 3 19 14 MEAN QFF PRESSURE IN HPA 1018.7 1017.1 1016.0 1010.1 1007.2 1001.0 996.3 998.4 1004.7 1011.7 1017.7 1021.2 1010.0 MAX. QFF PRESSURE IN HPA 1027.9 1025.0 1023.0 1016.3 1009.7 1006.3 999.3 1006.1 1010.4 1017.3 1025.6 1028.5 1028.5 DAY 2 15 9 3 15 5 18 30 30 27 29 22 MIN. QFF PRESSURE IN HPA 1009.7 1009.7 1006.2 1004.6 1003.9 995.1 994.2 994.1 998.7 1006.9 1011.7 1016.2 994.1 DAY 11 1 12 25 7 27 23 4 2 3 19 14 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1018.5 1017.3 1016.4 1010.8 1007.3 1001.2 996.5 998.7 1005.0 1011.8 1017.8 1020.9 1010.2 MAX. QFE PRESSURE IN HPA 1027.2 1025.0 1023.2 1016.8 1009.5 1006.7 999.8 1006.7 1010.6 1016.6 1025.2 1028.2 1028.2 DAY 2 15 27 2 25 5 17 30 30 26 22 22 MIN. QFE PRESSURE IN HPA 1009.6 1007.7 1007.7 1005.4 1004.8 995.3 994.3 994.0 999.3 1007.5 1012.7 1017.0 994.0 DAY 11 1 12 19 28 27 23 4 2 2 18 19 MEAN QNH PRESSURE IN HPA 1019.0 1017.8 1016.9 1011.3 1007.8 1001.6 997.0 999.2 1005.5 1012.3 1018.3 1021.4 1010.7 MAX. QNH PRESSURE IN HPA 1027.7 1025.5 1023.7 1017.3 1010.0 1007.2 1000.3 1007.2 1011.1 1017.1 1025.7 1028.7 1028.7 DAY 2 15 27 2 25 5 17 30 30 26 22 22 MIN. QNH PRESSURE IN HPA 1010.1 1008.2 1008.2 1005.9 1005.3 995.8 994.8 994.5 999.8 1008.0 1013.2 1017.5 994.5 DAY 11 1 12 19 28 27 23 4 2 2 18 19 MEAN QFF PRESSURE IN HPA 1019.3 1018.1 1017.2 1011.5 1008.0 1001.9 997.2 999.4 1005.8 1012.5 1018.6 1021.8 1010.9 MAX. QFF PRESSURE IN HPA 1028.0 1025.8 1024.0 1017.6 1010.2 1007.4 1000.5 1007.4 1011.3 1017.4 1026.0 1029.0 1029.0 DAY 2 15 27 2 25 5 17 30 30 26 29 22 MIN. QFF PRESSURE IN HPA 1010.4 1008.5 1008.5 1006.1 1005.5 996.0 995.0 994.7 1000.0 1008.2 1013.5 1017.8 994.7 DAY 11 1 12 19 28 27 23 4 2 2 18 19 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1018.3 1017.0 1016.3 1010.6 1007.2 1000.9 996.4 998.5 1004.9 1011.6 1017.6 1020.9 1010.0 MAX. QFE PRESSURE IN HPA 1027.7 1024.7 1023.2 1016.4 1009.6 1006.3 999.9 1006.9 1010.6 1016.0 1025.4 1028.3 1028.3 DAY 2 15 27 2 14 5 18 30 30 11 22 22 MIN. QFE PRESSURE IN HPA 1009.7 1007.2 1008.4 1005.7 1004.5 994.9 994.0 993.6 999.4 1007.4 1012.7 1016.7 993.6 DAY 10 1 12 19 28 27 23 4 2 2 18 28 MEAN QNH PRESSURE IN HPA 1018.8 1017.5 1016.8 1011.1 1007.6 1001.4 996.9 999.0 1005.4 1012.1 1018.1 1021.4 1010.5 MAX. QNH PRESSURE IN HPA 1028.2 1025.2 1023.7 1016.9 1010.1 1006.8 1000.4 1007.4 1011.1 1016.5 1025.9 1028.8 1028.8 DAY 2 15 27 2 14 5 18 30 30 11 22 22 MIN. QNH PRESSURE IN HPA 1010.2 1007.7 1008.9 1006.2 1005.0 995.4 994.5 994.1 999.9 1007.9 1013.2 1017.2 994.1 DAY 10 1 12 19 28 27 23 4 2 2 18 28 MEAN QFF PRESSURE IN HPA 1019.1 1017.8 1017.1 1011.3 1007.9 1001.6 997.1 999.2 1005.6 1012.3 1018.4 1021.7 1010.8 MAX. QFF PRESSURE IN HPA 1028.5 1025.5 1024.0 1017.2 1010.3 1007.0 1000.6 1007.6 1011.3 1016.8 1026.2 1029.1 1029.1 DAY 2 15 27 2 14 5 18 30 30 26 22 22 MIN. QFF PRESSURE IN HPA 1010.5 1008.0 1009.2 1006.4 1005.2 995.6 994.7 994.3 1000.1 1008.1 1013.5 1017.5 994.3 DAY 10 1 12 19 28 27 23 4 2 2 18 28 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.6 14.8 18.7 24.1 30.7 34.1 36.1 35.8 32.1 26.4 19.5 14.4 24.9 MINIMUN AIR TEMPERATURE (C) 5.8 8.6 11.8 17.6 22.7 26.2 27.6 27.0 22.4 17.2 15.0 11.0 17.7 DAYS WITH MINIMUM TEMP. >=21 0 0 0 7 23 30 31 31 25 4 0 0 151 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS LOWEST(C) 1.0 4.0 3.0 12.0 17.0 22.0 24.0 23.0 17.0 14.0 10.0 6.0 1.0 DAY 20 1 1 4 19 10 12 27 28 29 17 18 MAXIMUM AIR TEMPERATURE (C) 20.0 21.1 25.2 31.0 38.5 42.0 44.7 45.6 42.6 37.3 25.7 18.8 32.7 DAYS WITH MAXIMUM TEMP. >=30 0 0 3 18 31 30 31 31 30 31 6 0 211 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 24.0 24.0 32.0 39.0 43.0 47.0 49.0 48.0 48.0 41.0 35.0 25.0 49.0 DAY 11 6 31 25 30 25 16 17 1 2 1 27 DIF. BETWEEN (MAX.-MIN.) (C) 14.2 12.5 13.4 13.4 15.8 15.8 17.1 18.6 20.2 20.1 10.7 7.8 15.0 MEAN DAILY TEMP. (MDT) (C) 12.9 14.8 18.5 24.3 30.6 34.1 36.1 36.3 32.5 27.3 20.3 14.9 25.2 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 4.0 107.5 297.5 392.5 469.0 474.0 345.0 194.5 31.0 0.0 2315.0 HEATING DEG. DAYS(BASE 18 0C) 160.0 89.0 26.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12.0 102.5 390.0 DEWPOINT (MEAN C) 4.3 8.1 10.9 11.9 14.6 16.4 20.5 18.3 13.6 14.3 14.3 12.4 13.3 MIXING RATIO (G/KG) 5.52 6.94 8.34 8.91 10.76 12.27 16.16 14.00 10.10 10.42 10.23 9.07 10.23 VAPOUR PRESSURE (HPA) 8.92 11.19 13.40 14.25 17.09 19.29 25.16 21.90 15.99 16.66 16.44 14.63 16.24 SATURATION DEF. (HPA) 6.29 6.11 9.00 17.24 29.07 36.10 37.17 39.77 34.74 20.21 6.96 2.11 20.40 RELATIVE HUMIDITY (MEAN %) 62 68 64 52 42 39 46 41 37 53 75 89 56 RELATIVE HUMIDITY (MAX. %) 83 88 86 77 68 67 75 70 63 80 90 99 79 RELATIVE HUMIDITY (MIN. %) 34 43 41 29 20 18 23 17 15 24 56 74 33 RELATIVE HUMIDITY (MEAN% 03UTC) 81 84 82 74 64 61 64 63 58 76 84 96 74 RELATIVE HUMIDITY (MEAN% 09UTC) 46 53 47 34 24 20 27 20 21 29 63 79 39 RELATIVE HUMIDITY (MEAN% 15UTC) 51 56 53 37 29 27 32 28 26 43 71 88 45 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 3.6 26.4 43.4 39.4 1.0 0.0 0.0 0.0 0.0 0.0 136.1 72.9 322.8 DAYS WITH PRECIPITATION >=10 0 1 1 1 0 0 0 0 0 0 7 2 12 DAYS WITH PRECIPITATION >= 5 0 2 4 1 0 0 0 0 0 0 8 5 20 DAYS WITH PRECIPITATION >= 1 2 6 8 4 1 0 0 0 0 0 11 8 40 DAYS WITH PRECIPITATION 5 11 13 7 2 0 0 0 0 1 14 13 66 GREATEST DAILY PRECIPITATION 2.0 11.0 14.0 31.0 1.0 0.0 0.0 0.0 0.0 0.0 31.0 29.0 31.0 DAY 3 15 24 3 7 ** ** ** ** ** 30 13 DAY WITH THUNDER STORM 2 5 8 4 2 0 0 0 0 1 12 5 39 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 4 6 5 10 10 15 12 7 7 4 0 0 80 WIND DIRECTION (PREVAILING) 315 180 180 180 360 360 360 315 360 270 360 360 360 PREVAILING WIND SPEED(KNOTS) 8.2 10.3 8.2 10.3 13.7 14.7 9.5 9.9 7.3 3.4 5.8 6.4 9.3 PREVAILING WIND PERCENT 29.8 24.6 17.7 20.0 45.2 34.2 28.6 23.8 36.3 17.3 27.1 31.9 24.9 CALMS PERCENT OF WIND 11.7 15.6 14.1 9.6 7.3 8.3 15.7 23.4 16.3 22.6 15.8 9.3 14.1 NO. OF WIND OBSERVATION 248 224 248 240 248 240 248 248 240 248 240 248 2920 VECTOR WIND DIRECTION (MEAN) 313 212 86 121 331 322 322 309 329 288 46 350 325 VECTOR WIND MAGNITUDE(KNOTS) 2.5 1.7 0.8 0.4 8.6 8.6 3.4 3.9 4.2 1.2 1.7 1.6 2.7 WIND STEADINESES (MEAN %) 36.2 22.4 9.9 5.1 87.8 89.6 59.6 70.9 84.0 36.4 34.7 28.6 40.3 WIND SPEED (MEAN KNOTS) 6.9 7.6 8.1 7.8 9.8 9.6 5.7 5.5 5.0 3.3 4.9 5.6 6.7 FASTEST WIND DIRECTION 340 180 130 180 310 340 340 340 340 200 130 130 130 FASTEST WIND SPEED (KNOTS) 27 35 40 35 30 27 20 30 20 20 20 24 40 DAY 17 4 6 24 23 1 6 9 21 3 23 28 DAYS WITH SKY CLEAR (0-2)/8 17 9 12 13 26 30 31 30 30 28 6 8 240 DAYS WITH P.CLOUDY (3-6)/8 12 13 13 11 5 0 0 1 0 3 12 10 80 DAYS WITH CLOUDY (7-8)/8 2 6 6 6 0 0 0 0 0 0 12 13 45 DAYS WITH VISIBILITY =< 2 KM 3 5 3 3 0 4 1 3 3 4 1 11 41 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1016.6 1015.2 1014.5 1009.6 1006.1 999.0 995.6 997.4 1002.7 1011.4 1016.5 1018.5 1008.6 MAX. QFE PRESSURE IN HPA 1023.6 1023.9 1024.9 1015.5 1012.5 1003.4 1000.6 1005.0 1009.3 1017.6 1021.3 1028.1 1028.1 DAY-HOUR 16- 6 21-18 2- 6 16- 6 16- 6 3- 6 30- 6 30- 6 4-21 20- 6 5- 6 15- 6 MIN. QFE PRESSURE IN HPA 1007.7 1002.2 1004.9 1001.4 999.9 994.8 990.4 991.2 997.2 1002.5 1011.1 1007.6 990.4 DAY-HOUR 11- 9 15-12 7-12 11- 0 27- 0 6- 0 11-15 3-15 2- 0 1- 0 23- 9 30-12 MEAN QNH PRESSURE IN HPA 1017.1 1015.7 1015.0 1010.0 1006.5 999.5 996.0 997.9 1003.1 1011.8 1017.0 1019.0 1009.1 MAX. QNH PRESSURE IN HPA 1024.1 1024.4 1025.4 1016.0 1013.0 1003.9 1001.1 1005.5 1009.8 1018.1 1021.8 1028.6 1028.6 DAY-HOUR 16- 6 21-18 2- 6 16- 6 16- 6 3- 6 30- 6 30- 6 4-21 20- 6 5- 6 15- 6 MIN. QNH PRESSURE IN HPA 1008.2 1002.7 1005.4 1001.9 1000.4 995.3 990.9 991.7 997.7 1003.0 1011.6 1008.1 990.9 DAY-HOUR 11- 9 15-12 7-12 11- 0 27- 0 6- 0 11-15 3-15 2- 0 1- 0 23- 9 30-12 MEAN QFF PRESSURE IN HPA 1017.4 1016.0 1015.2 1010.3 1006.8 999.7 996.3 998.1 1003.4 1012.1 1017.3 1019.3 1009.3 MAX. QFF PRESSURE IN HPA 1024.4 1024.7 1025.7 1016.3 1013.2 1004.1 1001.3 1005.7 1010.0 1018.4 1022.1 1028.9 1028.9 DAY-HOUR 16- 6 21-18 2- 6 16- 6 16- 6 3- 6 30- 6 30- 6 4-21 20- 6 5- 6 15- 6 MIN. QFF PRESSURE IN HPA 1008.5 1003.0 1005.7 1002.1 1000.6 995.5 991.1 991.9 997.9 1003.2 1011.9 1008.4 991.1 DAY-HOUR 11- 9 15-12 7-12 11- 0 27- 0 6- 0 11-15 3-15 2- 0 1- 0 23- 9 30-12 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1016.6 1014.8 1014.1 1008.8 1005.5 998.4 994.9 996.9 1002.1 1010.9 1016.2 1018.3 1008.1 MAX. QFE PRESSURE IN HPA 1021.4 1023.1 1023.2 1012.9 1010.9 1001.8 998.0 1003.0 1007.9 1014.8 1019.5 1026.0 1026.0 DAY 8 22 2 16 1 3 14 31 29 20 20 16 MIN. QFE PRESSURE IN HPA 1009.2 1005.6 1005.0 1001.4 999.9 994.8 991.2 992.6 997.2 1002.5 1011.8 1008.8 991.2 DAY 28 16 7 11 27 6 12 3 2 1 1 6 MEAN QNH PRESSURE IN HPA 1017.1 1015.3 1014.6 1009.3 1006.0 998.9 995.4 997.4 1002.6 1011.4 1016.7 1018.8 1008.6 MAX. QNH PRESSURE IN HPA 1021.9 1023.6 1023.7 1013.4 1011.4 1002.3 998.5 1003.5 1008.4 1015.3 1020.0 1026.5 1026.5 DAY 8 22 2 16 1 3 14 31 29 20 20 16 MIN. QNH PRESSURE IN HPA 1009.7 1006.1 1005.5 1001.9 1000.4 995.3 991.7 993.1 997.7 1003.0 1012.3 1009.3 991.7 DAY 28 16 7 11 27 6 12 3 2 1 1 6 MEAN QFF PRESSURE IN HPA 1017.4 1015.6 1014.8 1009.5 1006.3 999.1 995.6 997.6 1002.9 1011.6 1016.9 1019.1 1008.9 MAX. QFF PRESSURE IN HPA 1022.2 1023.9 1024.0 1013.7 1011.6 1002.5 998.7 1003.7 1008.6 1015.6 1020.3 1026.8 1026.8 DAY 8 22 2 16 1 3 14 31 29 20 29 16 MIN. QFF PRESSURE IN HPA 1010.0 1006.4 1005.8 1002.1 1000.6 995.5 991.9 993.3 997.9 1003.2 1012.5 1009.6 991.9 DAY 28 16 7 11 27 6 12 3 2 1 1 6 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1016.5 1015.1 1014.8 1009.5 1006.2 999.0 995.8 997.7 1003.0 1011.5 1016.7 1018.4 1008.7 MAX. QFE PRESSURE IN HPA 1021.4 1022.7 1024.0 1014.0 1010.6 1002.3 999.4 1003.1 1008.0 1016.5 1020.4 1026.4 1026.4 DAY 16 22 2 16 1 3 30 31 29 20 20 15 MIN. QFE PRESSURE IN HPA 1007.8 1005.6 1005.0 1001.7 1000.8 995.7 991.9 993.4 998.7 1003.6 1012.7 1010.1 991.9 DAY 11 16 7 11 27 6 12 3 2 1 1 6 MEAN QNH PRESSURE IN HPA 1017.0 1015.6 1015.3 1010.0 1006.7 999.5 996.2 998.1 1003.5 1012.0 1017.2 1018.9 1009.2 MAX. QNH PRESSURE IN HPA 1021.9 1023.2 1024.5 1014.5 1011.1 1002.8 999.9 1003.6 1008.5 1017.0 1020.9 1026.9 1026.9 DAY 16 22 2 16 1 3 30 31 29 20 20 15 MIN. QNH PRESSURE IN HPA 1008.3 1006.1 1005.5 1002.2 1001.3 996.2 992.4 993.9 999.2 1004.1 1013.2 1010.6 992.4 DAY 11 16 7 11 27 6 12 3 2 1 1 6 MEAN QFF PRESSURE IN HPA 1017.3 1015.9 1015.6 1010.3 1006.9 999.8 996.5 998.4 1003.7 1012.3 1017.5 1019.2 1009.4 MAX. QFF PRESSURE IN HPA 1022.2 1023.5 1024.8 1014.8 1011.3 1003.0 1000.1 1003.8 1008.7 1017.3 1021.2 1027.2 1027.2 DAY 16 22 2 16 1 3 30 31 29 20 20 15 MIN. QFF PRESSURE IN HPA 1008.6 1006.4 1005.8 1002.5 1001.5 996.4 992.6 994.1 999.4 1004.3 1013.5 1010.9 992.6 DAY 11 16 7 11 27 6 12 3 2 1 1 6 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1018.1 1016.5 1016.0 1010.7 1007.3 999.8 996.6 998.8 1004.0 1012.9 1018.0 1019.8 1009.9 MAX. QFE PRESSURE IN HPA 1023.6 1023.7 1024.9 1015.5 1012.5 1003.4 1000.6 1005.0 1008.9 1017.6 1021.3 1028.1 1028.1 DAY 16 22 2 16 16 3 30 30 28 20 5 15 MIN. QFE PRESSURE IN HPA 1008.9 1005.2 1006.9 1003.6 1001.3 996.1 992.6 993.6 999.1 1005.3 1013.4 1011.3 992.6 DAY 11 15 7 11 27 6 12 3 2 1 1 6 MEAN QNH PRESSURE IN HPA 1018.6 1017.0 1016.5 1011.2 1007.8 1000.3 997.1 999.2 1004.5 1013.4 1018.5 1020.3 1010.4 MAX. QNH PRESSURE IN HPA 1024.1 1024.2 1025.4 1016.0 1013.0 1003.9 1001.1 1005.5 1009.4 1018.1 1021.8 1028.6 1028.6 DAY 16 22 2 16 16 3 30 30 28 20 5 15 MIN. QNH PRESSURE IN HPA 1009.4 1005.7 1007.4 1004.1 1001.8 996.6 993.1 994.1 999.6 1005.8 1013.9 1011.8 993.1 DAY 11 15 7 11 27 6 12 3 2 1 1 6 MEAN QFF PRESSURE IN HPA 1018.9 1017.3 1016.7 1011.5 1008.0 1000.6 997.3 999.5 1004.7 1013.6 1018.7 1020.5 1010.6 MAX. QFF PRESSURE IN HPA 1024.4 1024.5 1025.7 1016.3 1013.2 1004.1 1001.3 1005.7 1009.6 1018.4 1022.1 1028.9 1028.9 DAY 16 22 2 16 16 3 30 30 28 20 5 15 MIN. QFF PRESSURE IN HPA 1009.7 1006.0 1007.7 1004.4 1002.0 996.8 993.3 994.3 999.8 1006.0 1014.2 1012.1 993.3 DAY 11 15 7 11 27 6 12 3 2 1 1 6 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1016.8 1015.7 1015.4 1010.2 1007.0 999.8 996.5 998.3 1003.3 1011.9 1016.8 1018.7 1009.2 MAX. QFE PRESSURE IN HPA 1022.6 1022.2 1024.0 1014.4 1011.8 1002.6 1000.4 1003.9 1008.3 1015.9 1020.2 1026.7 1026.7 DAY 16 3 1 16 16 3 30 30 28 20 29 15 MIN. QFE PRESSURE IN HPA 1007.7 1003.9 1006.1 1004.5 1001.5 995.9 992.5 993.2 999.0 1005.4 1011.1 1008.7 992.5 DAY 11 15 7 2 27 5 11 3 2 1 23 30 MEAN QNH PRESSURE IN HPA 1017.3 1016.2 1015.9 1010.7 1007.5 1000.2 997.0 998.8 1003.8 1012.4 1017.3 1019.2 1009.7 MAX. QNH PRESSURE IN HPA 1023.1 1022.7 1024.5 1014.9 1012.3 1003.1 1000.9 1004.4 1008.8 1016.4 1020.7 1027.2 1027.2 DAY 16 3 1 16 16 3 30 30 28 20 29 15 MIN. QNH PRESSURE IN HPA 1008.2 1004.4 1006.6 1005.0 1002.0 996.4 993.0 993.7 999.5 1005.9 1011.6 1009.2 993.0 DAY 11 15 7 2 27 5 11 3 2 1 23 30 MEAN QFF PRESSURE IN HPA 1017.6 1016.5 1016.1 1011.0 1007.8 1000.5 997.2 999.0 1004.1 1012.7 1017.6 1019.5 1010.0 MAX. QFF PRESSURE IN HPA 1023.4 1023.0 1024.8 1015.2 1012.5 1003.3 1001.1 1004.6 1009.0 1016.6 1021.0 1027.5 1027.5 DAY 16 3 1 16 16 3 30 30 28 20 29 15 MIN. QFF PRESSURE IN HPA 1008.5 1004.7 1006.9 1005.2 1002.2 996.6 993.2 993.9 999.7 1006.1 1011.9 1009.5 993.2 DAY 11 15 7 2 27 5 11 3 2 1 23 30 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1015.3 1014.0 1013.5 1008.8 1005.7 999.0 995.4 996.9 1001.8 1010.3 1015.6 1017.6 1007.8 MAX. QFE PRESSURE IN HPA 1020.0 1021.3 1022.8 1012.8 1010.9 1001.5 998.7 1002.1 1007.4 1014.3 1018.5 1025.7 1025.7 DAY 16 21 1 29 16 3 30 30 28 20 15 15 MIN. QFE PRESSURE IN HPA 1008.2 1002.2 1004.9 1004.1 1000.7 995.7 991.5 991.9 997.7 1004.2 1011.7 1007.6 991.5 DAY 11 15 7 2 27 6 11 3 2 1 1 30 MEAN QNH PRESSURE IN HPA 1015.8 1014.5 1014.0 1009.3 1006.2 999.4 995.9 997.4 1002.3 1010.8 1016.0 1018.1 1008.3 MAX. QNH PRESSURE IN HPA 1020.5 1021.8 1023.3 1013.3 1011.4 1002.0 999.2 1002.6 1007.9 1014.8 1019.0 1026.2 1026.2 DAY 16 21 1 29 16 3 30 30 28 20 15 15 MIN. QNH PRESSURE IN HPA 1008.7 1002.7 1005.4 1004.6 1001.2 996.2 992.0 992.4 998.2 1004.7 1012.2 1008.1 992.0 DAY 11 15 7 2 27 6 11 3 2 1 1 30 MEAN QFF PRESSURE IN HPA 1016.1 1014.8 1014.2 1009.5 1006.5 999.7 996.1 997.6 1002.5 1011.0 1016.3 1018.4 1008.6 MAX. QFF PRESSURE IN HPA 1020.8 1022.1 1023.6 1013.6 1011.6 1002.2 999.4 1002.8 1008.1 1015.1 1019.3 1026.5 1026.5 DAY 16 21 1 29 16 19 30 30 28 20 15 15 MIN. QFF PRESSURE IN HPA 1009.0 1003.0 1005.7 1004.9 1001.4 996.4 992.2 992.6 998.4 1004.9 1012.5 1008.4 992.2 DAY 11 15 7 2 27 6 11 3 2 1 1 30 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1954 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1016.0 1014.6 1013.7 1008.7 1005.1 998.2 994.7 996.4 1001.6 1010.6 1016.0 1018.1 1007.8 MAX. QFE PRESSURE IN HPA 1021.2 1022.5 1023.9 1013.2 1010.4 1000.9 997.7 1001.6 1007.3 1014.8 1019.0 1026.2 1026.2 DAY 7 21 1 29 16 2 30 30 28 20 16 15 MIN. QFE PRESSURE IN HPA 1009.0 1003.7 1006.9 1005.2 1000.0 995.4 990.4 991.2 997.4 1004.6 1012.0 1009.7 990.4 DAY 27 15 7 2 27 6 11 3 1 1 23 6 MEAN QNH PRESSURE IN HPA 1016.5 1015.0 1014.2 1009.2 1005.5 998.7 995.2 996.8 1002.1 1011.1 1016.5 1018.6 1008.3 MAX. QNH PRESSURE IN HPA 1021.7 1023.0 1024.4 1013.7 1010.9 1001.4 998.2 1002.1 1007.8 1015.3 1019.5 1026.7 1026.7 DAY 7 21 1 29 16 2 30 30 28 20 16 15 MIN. QNH PRESSURE IN HPA 1009.5 1004.2 1007.4 1005.7 1000.5 995.9 990.9 991.7 997.9 1005.1 1012.5 1010.2 990.9 DAY 27 15 7 2 27 6 11 3 1 1 23 6 MEAN QFF PRESSURE IN HPA 1016.8 1015.3 1014.4 1009.5 1005.8 999.0 995.4 997.1 1002.4 1011.3 1016.7 1018.9 1008.6 MAX. QFF PRESSURE IN HPA 1022.0 1023.3 1024.7 1014.0 1011.1 1001.6 998.4 1002.3 1008.0 1015.6 1019.8 1027.0 1027.0 DAY 7 21 1 29 16 2 30 30 28 20 16 15 MIN. QFF PRESSURE IN HPA 1009.8 1004.5 1007.7 1006.0 1000.7 996.1 991.1 991.9 998.1 1005.3 1012.8 1010.5 991.1 DAY 27 15 7 2 27 6 11 3 1 1 23 6 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1016.8 1015.6 1014.4 1009.8 1005.9 998.9 995.5 997.2 1002.7 1011.6 1016.8 1018.6 1008.6 MAX. QFE PRESSURE IN HPA 1021.8 1023.9 1024.0 1015.1 1012.5 1001.3 998.4 1002.6 1008.4 1015.3 1019.9 1027.4 1027.4 DAY 7 21 1 15 16 3 14 29 28 20 19 15 MIN. QFE PRESSURE IN HPA 1010.2 1006.0 1007.2 1005.2 1000.8 995.9 991.2 992.0 998.3 1002.8 1013.5 1011.9 991.2 DAY 27 15 7 17 26 5 11 3 1 1 1 30 MEAN QNH PRESSURE IN HPA 1017.3 1016.1 1014.9 1010.3 1006.4 999.4 995.9 997.7 1003.2 1012.1 1017.3 1019.1 1009.1 MAX. QNH PRESSURE IN HPA 1022.3 1024.4 1024.5 1015.6 1013.0 1001.8 998.9 1003.1 1008.9 1015.8 1020.4 1027.9 1027.9 DAY 7 21 1 15 16 3 14 29 28 20 19 15 MIN. QNH PRESSURE IN HPA 1010.7 1006.5 1007.7 1005.7 1001.3 996.4 991.7 992.5 998.8 1003.3 1014.0 1012.4 991.7 DAY 27 15 7 17 26 5 11 3 1 1 1 30 MEAN QFF PRESSURE IN HPA 1017.6 1016.4 1015.2 1010.6 1006.6 999.6 996.2 998.0 1003.5 1012.3 1017.5 1019.4 1009.4 MAX. QFF PRESSURE IN HPA 1022.6 1024.7 1024.8 1015.9 1013.2 1002.0 999.1 1003.3 1009.1 1016.1 1020.7 1028.2 1028.2 DAY 7 21 1 15 16 3 14 29 28 20 19 15 MIN. QFF PRESSURE IN HPA 1011.0 1006.8 1008.0 1006.0 1001.5 996.6 991.9 992.7 999.0 1003.5 1014.3 1012.7 991.9 DAY 27 15 7 17 26 5 11 3 1 1 1 30 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1016.6 1015.5 1014.1 1010.0 1005.8 998.8 995.1 997.2 1002.9 1011.4 1016.6 1018.6 1008.6 MAX. QFE PRESSURE IN HPA 1021.3 1023.8 1023.4 1013.9 1011.5 1002.0 998.3 1002.9 1009.3 1015.0 1020.1 1026.7 1026.7 DAY 15 21 1 15 16 2 14 30 4 19 19 15 MIN. QFE PRESSURE IN HPA 1009.7 1005.6 1006.1 1003.5 1000.7 995.5 991.6 992.1 998.2 1002.8 1013.3 1010.9 991.6 DAY 2 15 7 10 26 5 11 3 1 1 2 5 MEAN QNH PRESSURE IN HPA 1017.1 1016.0 1014.6 1010.5 1006.3 999.3 995.6 997.7 1003.4 1011.9 1017.0 1019.1 1009.0 MAX. QNH PRESSURE IN HPA 1021.8 1024.3 1023.9 1014.4 1012.0 1002.5 998.8 1003.4 1009.8 1015.5 1020.6 1027.2 1027.2 DAY 15 21 1 15 16 2 14 30 4 19 19 15 MIN. QNH PRESSURE IN HPA 1010.2 1006.1 1006.6 1004.0 1001.2 996.0 992.1 992.6 998.7 1003.3 1013.8 1011.4 992.1 DAY 2 15 7 10 26 5 11 3 1 1 2 5 MEAN QFF PRESSURE IN HPA 1017.4 1016.3 1014.9 1010.7 1006.5 999.5 995.8 998.0 1003.6 1012.1 1017.3 1019.4 1009.3 MAX. QFF PRESSURE IN HPA 1022.1 1024.6 1024.2 1014.7 1012.2 1002.7 999.0 1003.6 1010.0 1015.7 1020.9 1027.5 1027.5 DAY 15 21 1 15 16 2 14 30 4 19 19 15 MIN. QFF PRESSURE IN HPA 1010.5 1006.4 1006.9 1004.3 1001.4 996.2 992.3 992.8 998.9 1003.5 1014.1 1011.7 992.3 DAY 2 15 7 10 26 5 11 3 1 1 2 5 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.1 15.7 19.5 24.8 30.4 35.1 36.0 35.5 32.3 25.1 20.7 13.6 25.1 MINIMUN AIR TEMPERATURE (C) 7.5 9.5 14.0 17.7 22.2 25.1 26.7 25.8 22.8 15.6 13.9 8.3 17.4 DAYS WITH MINIMUM TEMP. >=21 0 0 0 5 24 30 31 30 26 0 0 0 146 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 1 1 TEMPERATURE RECORDS LOWEST(C) 3.0 5.0 7.0 12.0 16.0 22.0 23.0 20.0 19.0 10.0 7.0 0.0 0.0 DAY 11 4 10 12 6 7 17 25 21 29 27 6 MAXIMUM AIR TEMPERATURE (C) 17.4 22.8 25.9 32.6 38.7 44.9 45.3 45.4 43.0 36.4 29.2 19.9 33.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 4 25 31 30 31 31 30 31 15 0 228 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 20.0 27.0 31.0 37.0 46.0 50.0 49.0 50.0 46.0 42.0 34.0 26.0 50.0 DAY 13 17 31 22 19 27 11 3 2 3 10 2 DIF. BETWEEN (MAX.-MIN.) (C) 9.9 13.3 11.9 14.9 16.5 19.8 18.6 19.6 20.2 20.8 15.3 11.6 16.1 MEAN DAILY TEMP. (MDT) (C) 12.5 16.2 19.9 25.1 30.5 35.0 36.0 35.6 32.9 26.0 21.5 14.1 25.4 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 8.5 127.5 293.0 421.0 465.5 453.0 357.0 156.0 31.5 0.0 2313.0 HEATING DEG. DAYS(BASE 18 0C) 172.0 56.5 6.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.5 125.0 362.0 DEWPOINT (MEAN C) 9.2 9.1 11.5 10.6 12.2 15.1 19.8 16.8 13.4 11.6 12.9 9.8 12.7 MIXING RATIO (G/KG) 7.27 7.41 8.67 8.39 9.16 11.18 15.22 13.21 9.89 8.76 9.64 7.70 9.71 VAPOUR PRESSURE (HPA) 11.78 11.95 13.89 13.44 14.60 17.62 23.78 20.67 15.69 14.02 15.46 12.43 15.44 SATURATION DEF. (HPA) 2.64 6.57 9.50 19.27 31.19 42.40 38.69 40.46 35.97 20.20 10.10 3.69 21.72 RELATIVE HUMIDITY (MEAN %) 84 69 63 45 37 34 41 37 35 47 63 80 53 RELATIVE HUMIDITY (MAX. %) 98 91 84 72 61 57 60 57 57 75 82 94 74 RELATIVE HUMIDITY (MIN. %) 63 43 41 24 18 16 28 22 18 24 45 57 33 RELATIVE HUMIDITY (MEAN% 03UTC) 97 86 78 68 54 52 55 51 52 69 78 91 69 RELATIVE HUMIDITY (MEAN% 09UTC) 71 51 51 28 22 21 32 28 21 27 51 66 39 RELATIVE HUMIDITY (MEAN% 15UTC) 78 57 51 31 24 21 33 29 27 39 60 76 44 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 15.0 0.1 9.1 0.6 4.0 0.0 0.0 0.0 0.0 0.0 0.2 91.9 120.9 DAYS WITH PRECIPITATION >=10 0 0 0 0 0 0 0 0 0 0 0 4 4 DAYS WITH PRECIPITATION >= 5 1 0 1 0 0 0 0 0 0 0 0 6 8 DAYS WITH PRECIPITATION >= 1 6 0 3 0 2 0 0 0 0 0 0 8 19 DAYS WITH PRECIPITATION 7 2 9 7 5 0 0 0 0 0 6 11 47 GREATEST DAILY PRECIPITATION 5.0 0.1 7.0 0.5 2.2 0.0 0.0 0.0 0.0 0.0 0.1 29.0 29.0 DAY 3 1 25 20 3 ** ** ** ** ** 24 12 DAY WITH THUNDER STORM 2 1 5 4 3 0 1 0 0 0 2 3 21 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 3 5 2 3 3 3 4 9 4 1 0 0 37 WIND DIRECTION (PREVAILING) 315 315 180 360 315 270 270 270 270 270 315 270 270 PREVAILING WIND SPEED(KNOTS) 4.1 6.6 10.6 9.5 8.4 7.9 8.8 10.2 7.0 4.3 8.5 5.8 6.9 PREVAILING WIND PERCENT 29.1 26.3 27.4 20.0 25.8 35.0 45.2 41.1 47.1 44.8 22.9 23.0 26.1 CALMS PERCENT OF WIND 11.7 7.1 3.6 7.9 6.5 8.3 4.0 7.3 7.1 4.8 10.0 13.7 7.7 NO. OF WIND OBSERVATION 247 224 248 240 248 240 248 248 240 248 240 248 2919 VECTOR WIND DIRECTION (MEAN) 329 318 218 267 320 291 291 298 296 265 309 307 297 VECTOR WIND MAGNITUDE(KNOTS) 2.0 3.1 1.3 0.6 3.3 5.4 6.8 7.9 6.2 2.6 1.9 1.1 3.3 WIND STEADINESES (MEAN %) 40.8 44.9 16.9 7.5 45.2 73.0 85.0 89.8 89.9 63.4 29.7 18.6 47.8 WIND SPEED (MEAN KNOTS) 4.9 6.9 7.7 8.0 7.3 7.4 8.0 8.8 6.9 4.1 6.4 5.9 6.9 FASTEST WIND DIRECTION 340 340 160 110 310 310 310 290 310 310 180 90 160 FASTEST WIND SPEED (KNOTS) 20 25 35 32 25 20 25 25 25 20 20 25 35 DAY 9 18 16 28 6 11 12 31 3 31 9 7 DAYS WITH SKY CLEAR (0-2)/8 15 19 9 15 19 30 31 29 30 28 16 13 254 DAYS WITH P.CLOUDY (3-6)/8 12 8 10 9 9 0 0 2 0 3 11 12 76 DAYS WITH CLOUDY (7-8)/8 4 1 12 6 3 0 0 0 0 0 3 6 35 DAYS WITH VISIBILITY =< 2 KM 4 7 0 0 2 1 2 2 1 1 1 2 23 DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL MEAN QFE PRESSURE IN HPA 1020.5 1016.8 1012.0 1010.9 1006.4 999.0 996.8 997.3 1003.1 1011.1 1015.2 1017.4 1008.9 MAX. QFE PRESSURE IN HPA 1029.5 1023.8 1020.6 1016.6 1014.5 1004.1 1002.1 1002.0 1011.2 1017.0 1023.8 1025.3 1029.5 DAY-HOUR 9- 6 24- 6 29- 6 13- 6 6- 6 1- 6 10- 6 23- 6 29- 6 18- 6 26- 6 9- 6 MIN. QFE PRESSURE IN HPA 1012.9 1010.0 1001.0 1004.8 1000.2 992.8 992.3 993.1 994.6 1005.1 1008.1 1008.1 992.3 DAY-HOUR 26-12 22-18 13- 6 27-12 24-15 29- 0 17-15 6-15 1- 0 1- 0 9-12 29- 0 MEAN QNH PRESSURE IN HPA 1021.0 1017.3 1012.5 1011.4 1006.9 999.5 997.2 997.7 1003.6 1011.6 1015.7 1017.9 1009.3 MAX. QNH PRESSURE IN HPA 1030.0 1024.3 1021.1 1017.1 1015.0 1004.6 1002.6 1002.5 1011.7 1017.5 1024.3 1025.8 1030.0 DAY-HOUR 9- 6 24- 6 29- 6 13- 6 6- 6 1- 6 10- 6 23- 6 29- 6 18- 6 26- 6 9- 6 MIN. QNH PRESSURE IN HPA 1013.4 1010.5 1001.5 1005.3 1000.7 993.3 992.8 993.6 995.1 1005.6 1008.6 1008.6 992.8 DAY-HOUR 26-12 22-18 13- 6 27-12 24-15 29- 0 17-15 6-15 1- 0 1- 0 9-12 29- 0 MEAN QFF PRESSURE IN HPA 1021.3 1017.5 1012.8 1011.6 1007.1 999.7 997.5 998.0 1003.8 1011.8 1016.0 1018.1 1009.6 MAX. QFF PRESSURE IN HPA 1030.3 1024.6 1021.4 1017.4 1015.3 1004.8 1002.8 1002.7 1011.9 1017.8 1024.6 1026.1 1030.3 DAY-HOUR 9- 6 24- 6 29- 6 13- 6 6- 6 1- 6 10- 6 23- 6 29- 6 18- 6 26- 6 9- 6 MIN. QFF PRESSURE IN HPA 1013.7 1010.8 1001.8 1005.5 1000.9 993.5 993.0 993.8 995.3 1005.8 1008.9 1008.9 993.0 DAY-HOUR 26-12 22-18 13- 6 27-12 24-15 29- 0 17-15 6-15 1- 0 1- 0 9-12 29- 0 PRESSURE AT HOUR 0000 UTC. MEAN QFE PRESSURE IN HPA 1020.4 1016.5 1011.6 1010.5 1005.8 998.5 996.1 996.8 1002.4 1010.5 1015.0 1017.1 1008.4 MAX. QFE PRESSURE IN HPA 1027.3 1022.3 1017.7 1015.8 1013.7 1002.4 999.5 1000.3 1008.1 1015.4 1022.3 1021.7 1027.3 DAY 9 24 29 13 6 6 10 23 29 23 26 9 MIN. QFE PRESSURE IN HPA 1014.4 1012.2 1004.0 1005.1 1000.8 992.8 993.0 994.4 994.6 1005.1 1009.7 1008.1 992.8 DAY 26 5 12 28 24 29 18 8 1 1 24 29 MEAN QNH PRESSURE IN HPA 1020.9 1017.0 1012.1 1011.0 1006.3 999.0 996.6 997.3 1002.9 1011.0 1015.5 1017.6 1008.9 MAX. QNH PRESSURE IN HPA 1027.8 1022.8 1018.2 1016.3 1014.2 1002.9 1000.0 1000.8 1008.6 1015.9 1022.8 1022.2 1027.8 DAY 9 24 29 13 6 6 10 23 29 23 26 9 MIN. QNH PRESSURE IN HPA 1014.9 1012.7 1004.5 1005.6 1001.3 993.3 993.5 994.9 995.1 1005.6 1010.2 1008.6 993.3 DAY 26 5 12 28 24 29 18 8 1 1 24 29 MEAN QFF PRESSURE IN HPA 1021.2 1017.3 1012.3 1011.2 1006.6 999.2 996.8 997.5 1003.1 1011.3 1015.7 1017.9 1009.2 MAX. QFF PRESSURE IN HPA 1028.1 1023.1 1018.5 1016.6 1014.5 1003.1 1000.2 1001.0 1008.8 1016.2 1023.1 1022.5 1028.1 DAY 9 24 29 13 6 6 10 23 29 23 26 9 MIN. QFF PRESSURE IN HPA 1015.2 1013.0 1004.8 1005.8 1001.5 993.5 993.7 995.1 995.3 1005.8 1010.5 1008.9 993.5 DAY 26 5 12 28 24 29 18 8 1 1 24 29 PRESSURE AT HOUR 0300 UTC. MEAN QFE PRESSURE IN HPA 1020.5 1016.7 1012.3 1011.2 1006.6 999.2 996.9 997.6 1003.3 1011.2 1015.6 1017.3 1009.0 MAX. QFE PRESSURE IN HPA 1027.3 1022.7 1019.0 1016.4 1013.9 1002.9 1001.1 1001.3 1009.7 1015.6 1023.1 1023.5 1027.3 DAY 9 24 29 13 6 1 10 23 29 23 26 9 MIN. QFE PRESSURE IN HPA 1014.4 1012.2 1004.9 1005.2 1001.5 993.7 993.5 995.5 995.3 1005.6 1009.3 1008.3 993.5 DAY 26 6 4 28 24 29 17 8 1 1 9 29 MEAN QNH PRESSURE IN HPA 1021.0 1017.2 1012.8 1011.7 1007.1 999.7 997.3 998.1 1003.8 1011.7 1016.1 1017.8 1009.5 MAX. QNH PRESSURE IN HPA 1027.8 1023.2 1019.5 1016.9 1014.4 1003.4 1001.6 1001.8 1010.2 1016.1 1023.6 1024.0 1027.8 DAY 9 24 29 13 6 1 10 23 29 23 26 9 MIN. QNH PRESSURE IN HPA 1014.9 1012.7 1005.4 1005.7 1002.0 994.2 994.0 996.0 995.8 1006.1 1009.8 1008.8 994.0 DAY 26 6 4 28 24 29 17 8 1 1 9 29 MEAN QFF PRESSURE IN HPA 1021.3 1017.5 1013.0 1012.0 1007.4 1000.0 997.6 998.3 1004.0 1012.0 1016.3 1018.1 1009.8 MAX. QFF PRESSURE IN HPA 1028.1 1023.5 1019.8 1017.2 1014.7 1003.6 1001.8 1002.0 1010.4 1016.4 1023.9 1024.3 1028.1 DAY 9 24 29 13 6 1 10 23 29 23 26 9 MIN. QFF PRESSURE IN HPA 1015.2 1013.0 1005.7 1005.9 1002.2 994.4 994.2 996.2 996.0 1006.3 1010.1 1009.1 994.2 DAY 26 6 4 28 24 29 17 8 1 1 9 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 0600 UTC. MEAN QFE PRESSURE IN HPA 1022.1 1018.2 1013.2 1012.5 1007.6 1000.1 997.7 998.6 1004.5 1012.6 1016.9 1019.0 1010.2 MAX. QFE PRESSURE IN HPA 1029.5 1023.8 1020.6 1016.6 1014.5 1004.1 1002.1 1002.0 1011.2 1017.0 1023.8 1025.3 1029.5 DAY 9 24 29 13 6 1 10 23 29 18 26 9 MIN. QFE PRESSURE IN HPA 1015.5 1013.6 1001.0 1007.3 1002.2 994.7 994.5 996.3 995.9 1007.1 1010.3 1010.6 994.5 DAY 26 5 13 8 24 29 17 6 1 1 9 29 MEAN QNH PRESSURE IN HPA 1022.6 1018.7 1013.7 1013.0 1008.1 1000.6 998.2 999.1 1005.0 1013.1 1017.4 1019.5 1010.7 MAX. QNH PRESSURE IN HPA 1030.0 1024.3 1021.1 1017.1 1015.0 1004.6 1002.6 1002.5 1011.7 1017.5 1024.3 1025.8 1030.0 DAY 9 24 29 13 6 1 10 23 29 18 26 9 MIN. QNH PRESSURE IN HPA 1016.0 1014.1 1001.5 1007.8 1002.7 995.2 995.0 996.8 996.4 1007.6 1010.8 1011.1 995.0 DAY 26 5 13 8 24 29 17 6 1 1 9 29 MEAN QFF PRESSURE IN HPA 1022.9 1018.9 1014.0 1013.2 1008.3 1000.8 998.4 999.3 1005.3 1013.4 1017.7 1019.8 1011.0 MAX. QFF PRESSURE IN HPA 1030.3 1024.6 1021.4 1017.4 1015.3 1004.8 1002.8 1002.7 1011.9 1017.8 1024.6 1026.1 1030.3 DAY 9 24 29 13 6 1 10 23 29 18 26 9 MIN. QFF PRESSURE IN HPA 1016.3 1014.4 1001.8 1008.1 1002.9 995.4 995.2 997.0 996.6 1007.9 1011.1 1011.4 995.2 DAY 26 5 13 8 24 29 17 6 1 1 9 29 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 1021.0 1017.7 1012.8 1011.8 1007.2 999.9 997.5 998.1 1003.8 1011.6 1015.5 1017.7 1009.5 MAX. QFE PRESSURE IN HPA 1027.7 1023.2 1020.1 1016.1 1014.2 1003.5 1001.9 1001.3 1010.3 1016.3 1022.4 1023.9 1027.7 DAY 9 24 29 13 5 6 10 22 29 18 25 9 MIN. QFE PRESSURE IN HPA 1014.5 1013.8 1005.4 1007.1 1001.8 994.8 994.4 995.4 995.5 1006.4 1009.6 1010.1 994.4 DAY 26 6 12 8 24 29 17 6 1 1 9 29 MEAN QNH PRESSURE IN HPA 1021.5 1018.2 1013.3 1012.3 1007.7 1000.4 998.0 998.5 1004.3 1012.1 1016.0 1018.2 1010.0 MAX. QNH PRESSURE IN HPA 1028.2 1023.7 1020.6 1016.6 1014.7 1004.0 1002.4 1001.8 1010.8 1016.8 1022.9 1024.4 1028.2 DAY 9 24 29 13 5 6 10 22 29 18 25 9 MIN. QNH PRESSURE IN HPA 1015.0 1014.3 1005.9 1007.6 1002.3 995.3 994.9 995.9 996.0 1006.9 1010.1 1010.6 994.9 DAY 26 6 12 8 24 29 17 6 1 1 9 29 MEAN QFF PRESSURE IN HPA 1021.8 1018.4 1013.6 1012.6 1008.0 1000.6 998.2 998.8 1004.6 1012.3 1016.3 1018.5 1010.3 MAX. QFF PRESSURE IN HPA 1028.5 1024.0 1020.9 1016.9 1015.0 1004.2 1002.6 1002.0 1011.0 1017.1 1023.2 1024.7 1028.5 DAY 9 24 29 13 5 6 10 22 29 18 25 9 MIN. QFF PRESSURE IN HPA 1015.3 1014.6 1006.2 1007.8 1002.5 995.5 995.1 996.1 996.2 1007.1 1010.4 1010.9 995.1 DAY 26 6 12 8 24 29 17 6 1 1 9 29 PRESSURE AT HOUR 1200 UTC. MEAN QFE PRESSURE IN HPA 1019.4 1015.8 1011.1 1010.1 1005.8 998.5 996.5 996.7 1002.2 1010.1 1014.1 1016.3 1008.1 MAX. QFE PRESSURE IN HPA 1026.1 1020.9 1018.5 1014.6 1012.9 1002.6 1000.4 1000.1 1008.6 1014.3 1021.5 1021.4 1026.1 DAY 9 24 29 12 5 5 10 22 29 18 25 9 MIN. QFE PRESSURE IN HPA 1012.9 1011.8 1004.2 1004.8 1000.6 993.6 993.3 993.9 995.0 1005.2 1008.1 1009.0 993.3 DAY 26 5 12 27 24 29 16 6 1 1 9 29 MEAN QNH PRESSURE IN HPA 1019.9 1016.3 1011.6 1010.6 1006.3 999.0 997.0 997.1 1002.7 1010.5 1014.6 1016.8 1008.5 MAX. QNH PRESSURE IN HPA 1026.6 1021.4 1019.0 1015.1 1013.4 1003.1 1000.9 1000.6 1009.1 1014.8 1022.0 1021.9 1026.6 DAY 9 24 29 12 5 5 10 22 29 18 25 9 MIN. QNH PRESSURE IN HPA 1013.4 1012.3 1004.7 1005.3 1001.1 994.1 993.8 994.4 995.5 1005.7 1008.6 1009.5 993.8 DAY 26 5 12 27 24 29 16 6 1 1 9 29 MEAN QFF PRESSURE IN HPA 1020.2 1016.6 1011.9 1010.8 1006.6 999.3 997.2 997.4 1003.0 1010.8 1014.8 1017.1 1008.8 MAX. QFF PRESSURE IN HPA 1026.9 1021.7 1019.3 1015.4 1013.7 1003.3 1001.1 1000.8 1009.3 1015.1 1022.3 1022.2 1026.9 DAY 9 24 29 12 5 5 10 22 29 22 25 9 MIN. QFF PRESSURE IN HPA 1013.7 1012.6 1005.0 1005.5 1001.3 994.3 994.0 994.6 995.7 1005.9 1008.9 1009.8 994.0 DAY 26 5 12 27 24 29 16 6 1 1 9 29 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1955 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL PRESSURE AT HOUR 1500 UTC. MEAN QFE PRESSURE IN HPA 1019.9 1015.9 1011.2 1009.6 1005.3 998.0 995.9 996.1 1002.2 1010.3 1014.5 1016.7 1008.0 MAX. QFE PRESSURE IN HPA 1026.5 1020.7 1018.6 1014.3 1012.6 1001.6 1000.0 999.2 1008.2 1014.7 1022.3 1022.5 1026.5 DAY 9 24 29 12 5 5 10 22 29 18 25 9 MIN. QFE PRESSURE IN HPA 1013.1 1010.7 1004.5 1005.0 1000.2 993.3 992.3 993.1 995.0 1005.6 1009.3 1009.3 992.3 DAY 26 22 12 30 24 29 17 6 1 5 8 28 MEAN QNH PRESSURE IN HPA 1020.4 1016.4 1011.7 1010.1 1005.8 998.5 996.4 996.5 1002.7 1010.8 1015.0 1017.2 1008.5 MAX. QNH PRESSURE IN HPA 1027.0 1021.2 1019.1 1014.8 1013.1 1002.1 1000.5 999.7 1008.7 1015.2 1022.8 1023.0 1027.0 DAY 9 24 29 12 5 5 10 22 29 18 25 9 MIN. QNH PRESSURE IN HPA 1013.6 1011.2 1005.0 1005.5 1000.7 993.8 992.8 993.6 995.5 1006.1 1009.8 1009.8 992.8 DAY 26 22 12 30 24 29 17 6 1 5 8 28 MEAN QFF PRESSURE IN HPA 1020.7 1016.7 1012.0 1010.4 1006.0 998.7 996.6 996.8 1002.9 1011.1 1015.3 1017.5 1008.7 MAX. QFF PRESSURE IN HPA 1027.3 1021.5 1019.4 1015.1 1013.4 1002.3 1000.7 999.9 1009.0 1015.5 1023.1 1023.3 1027.3 DAY 9 24 29 12 5 5 10 22 29 22 25 9 MIN. QFF PRESSURE IN HPA 1013.9 1011.5 1005.3 1005.7 1000.9 994.0 993.0 993.8 995.7 1006.3 1010.1 1010.1 993.0 DAY 26 22 12 30 24 29 17 6 1 5 9 28 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA 1020.5 1016.8 1012.1 1010.8 1006.4 999.0 996.9 997.2 1003.3 1011.2 1015.4 1017.5 1008.9 MAX. QFE PRESSURE IN HPA 1027.2 1021.7 1019.4 1015.7 1014.2 1002.7 1000.8 1000.5 1008.6 1016.2 1022.9 1022.4 1027.2 DAY 9 24 29 12 5 5 10 22 29 22 25 9 MIN. QFE PRESSURE IN HPA 1014.4 1010.0 1004.8 1004.9 1001.2 993.9 992.9 995.1 996.1 1005.4 1009.1 1009.0 992.9 DAY 26 22 11 30 24 28 17 6 1 5 8 28 MEAN QNH PRESSURE IN HPA 1021.0 1017.3 1012.6 1011.3 1006.9 999.5 997.4 997.7 1003.8 1011.7 1015.9 1018.0 1009.4 MAX. QNH PRESSURE IN HPA 1027.7 1022.2 1019.9 1016.2 1014.7 1003.2 1001.3 1001.0 1009.1 1016.7 1023.4 1022.9 1027.7 DAY 9 24 29 12 5 5 10 22 29 22 25 9 MIN. QNH PRESSURE IN HPA 1014.9 1010.5 1005.3 1005.4 1001.7 994.4 993.4 995.6 996.6 1005.9 1009.6 1009.5 993.4 DAY 26 22 11 30 24 28 17 6 1 5 8 28 MEAN QFF PRESSURE IN HPA 1021.3 1017.6 1012.9 1011.5 1007.2 999.7 997.6 998.0 1004.1 1012.0 1016.1 1018.3 1009.7 MAX. QFF PRESSURE IN HPA 1028.0 1022.5 1020.2 1016.5 1015.0 1003.4 1001.5 1001.2 1009.4 1017.0 1023.7 1023.2 1028.0 DAY 9 24 29 12 5 5 10 22 29 22 25 9 MIN. QFF PRESSURE IN HPA 1015.2 1010.8 1005.6 1005.6 1001.9 994.6 993.6 995.8 996.8 1006.1 1009.9 1009.8 993.6 DAY 26 22 11 30 24 28 17 6 1 5 8 28 PRESSURE AT HOUR 2100 UTC. MEAN QFE PRESSURE IN HPA 1020.3 1016.7 1012.1 1010.7 1006.5 998.7 996.8 997.3 1003.1 1011.1 1015.2 1017.2 1008.8 MAX. QFE PRESSURE IN HPA 1027.0 1022.4 1018.9 1015.8 1014.3 1002.6 999.6 1000.1 1008.0 1016.0 1022.5 1022.4 1027.0 DAY 8 23 28 12 5 6 10 22 29 22 25 9 MIN. QFE PRESSURE IN HPA 1014.9 1010.6 1004.1 1004.9 1001.7 992.9 993.9 995.3 996.4 1006.4 1008.9 1008.4 992.9 DAY 25 22 11 30 23 28 17 6 1 4 8 28 MEAN QNH PRESSURE IN HPA 1020.8 1017.2 1012.6 1011.2 1007.0 999.2 997.3 997.8 1003.6 1011.6 1015.7 1017.7 1009.3 MAX. QNH PRESSURE IN HPA 1027.5 1022.9 1019.4 1016.3 1014.8 1003.1 1000.1 1000.6 1008.5 1016.5 1023.0 1022.9 1027.5 DAY 8 23 28 12 5 6 10 22 29 22 25 9 MIN. QNH PRESSURE IN HPA 1015.4 1011.1 1004.6 1005.4 1002.2 993.4 994.4 995.8 996.9 1006.9 1009.4 1008.9 993.4 DAY 25 22 11 30 23 28 17 6 1 4 8 28 MEAN QFF PRESSURE IN HPA 1021.1 1017.5 1012.9 1011.4 1007.2 999.5 997.5 998.0 1003.9 1011.9 1016.0 1018.0 1009.6 MAX. QFF PRESSURE IN HPA 1027.8 1023.2 1019.7 1016.6 1015.1 1003.3 1000.3 1000.8 1008.7 1016.8 1023.3 1023.2 1027.8 DAY 8 23 28 12 5 6 10 22 29 22 25 9 MIN. QFF PRESSURE IN HPA 1015.7 1011.4 1004.9 1005.6 1002.4 993.6 994.6 996.0 997.1 1007.1 1009.7 1009.2 993.6 DAY 26 22 11 30 23 28 17 6 1 4 8 28 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION ABADAN (40831) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 30 22 N LONGITUDE 48 15 E DATA PROCESSING CENTER ELEVATION 6.6 M MEANS AND EXTREMES FOR THE YEAR 1956 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 11.9 16.0 18.3 23.7 28.8 34.4 35.8 35.8 31.6 25.2 18.0 12.2 24.3 MINIMUN AIR TEMPERATURE (C) 6.4 10.2 11.6 17.0 20.5 25.5 27.8 26.4 22.6 16.2 10.2 8.1 16.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 4 15 29 31 31 19 2 0 0 131 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS LOWEST(C) 2.0 1.0 5.0 7.0 16.0 20.0 24.0 23.0 18.0 9.0 6.0 1.0 1.0 DAY 19 2 25 1 1 1 20 29 20 31 13 14 MAXIMUM AIR TEMPERATURE (C) 18.4 23.0 25.6 31.4 37.5 43.1 44.7 45.7 42.0 35.8 27.2 17.4 32.6 DAYS WITH MAXIMUM TEMP. >=30 0 0 2 22 31 30 31 31 30 31 5 0 213 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 23.0 28.0 30.0 37.0 44.0 48.0 48.0 49.0 47.0 41.0 30.0 27.0 49.0 DAY 28 20 11 26 19 17 6 13 2 8 1 1 DIF. BETWEEN (MAX.-MIN.) (C) 12.0 12.8 14.0 14.4 17.0 17.6 16.9 19.3 19.4 19.6 17.0 9.3 15.7 MEAN DAILY TEMP. (MDT) (C) 12.4 16.6 18.6 24.2 29.0 34.3 36.2 36.0 32.3 26.0 18.7 12.7 24.8 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 2.0 120.5 248.0 399.5 472.5 466.5 338.5 157.0 2.0 1.0 2207.5 HEATING DEG. DAYS(BASE 18 0C) 174.0 57.0 16.0 8.5 0.0 0.0 0.0 0.0 0.0 0.0 17.0 170.0 442.5 DEWPOINT (MEAN C) 7.7 7.5 7.9 10.0 7.1 9.6 15.6 14.6 14.6 15.7 9.2 8.8 10.7 MIXING RATIO (G/KG) 6.60 6.91 6.98 8.11 6.63 7.87 12.04 11.23 11.11 11.74 7.64 7.34 8.68 VAPOUR PRESSURE (HPA) 10.67 11.12 11.22 12.97 10.60 12.48 18.86 17.66 17.57 18.70 12.32 11.86 13.84 SATURATION DEF. (HPA) 3.75 7.79 10.61 17.90 31.14 44.33 42.35 44.24 32.02 15.98 9.54 3.04 21.89 RELATIVE HUMIDITY (MEAN %) 78 61 55 47 30 25 35 34 40 58 60 82 50 RELATIVE HUMIDITY (MAX. %) 95 83 79 72 54 42 55 59 63 78 81 95 71 RELATIVE HUMIDITY (MIN. %) 55 37 35 25 13 12 17 14 20 40 39 63 31 RELATIVE HUMIDITY (MEAN% 03UTC) 90 81 74 69 43 38 50 53 56 72 77 91 66 RELATIVE HUMIDITY (MEAN% 09UTC) 62 45 42 30 15 14 22 17 24 46 43 70 36 RELATIVE HUMIDITY (MEAN% 15UTC) 69 53 41 33 20 19 25 23 30 52 53 79 41 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 32.0 22.4 4.5 24.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 58.0 141.2 DAYS WITH PRECIPITATION >=10 1 1 0 1 0 0 0 0 0 0 0 1 4 DAYS WITH PRECIPITATION >= 5 2 1 0 1 0 0 0 0 0 0 0 7 11 DAYS WITH PRECIPITATION >= 1 3 5 2 4 0 0 0 0 0 0 0 9 23 DAYS WITH PRECIPITATION 3 7 6 6 0 0 0 0 0 0 0 11 33 GREATEST DAILY PRECIPITATION 22.0 16.2 3.0 17.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13.0 22.0 DAY 15 23 8 5 **