STATION DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 M MEANS AND EXTREMES FOR THE YEAR 1987 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 14.5 17.8 17.2 25.9 34.8 38.6 40.4 39.1 35.6 26.4 21.0 14.3 27.1 MINIMUN AIR TEMPERATURE (C) 7.9 11.6 12.1 18.0 26.9 28.7 31.1 30.1 27.7 21.1 14.3 9.6 19.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 9 31 29 31 31 29 15 0 0 175 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS LOWEST(C) 3.0 6.0 5.2 11.6 23.2 22.8 25.6 22.7 23.6 13.2 9.0 1.8 1.8 DAY 1 11 21 5 14 21 30 20 30 28 29 29 MAXIMUM AIR TEMPERATURE (C) 19.0 22.3 21.2 30.5 39.5 43.8 45.9 45.1 41.2 30.7 26.5 18.3 32.0 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 17 31 29 31 31 30 17 3 0 189 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 24.0 27.5 27.0 39.4 42.2 48.0 48.6 49.8 45.0 39.6 30.6 24.0 49.8 DAY 31 2 2 30 15 15 24 14 9 3 18 1 DIF. BETWEEN (MAX.-MIN.) (C) 11.1 10.7 9.1 12.5 12.6 15.1 14.8 15.0 13.5 9.6 12.2 8.7 12.1 MEAN DAILY TEMP. (MDT) (C) 13.5 16.9 16.6 24.2 33.2 36.3 38.5 37.6 34.5 25.9 20.4 14.0 26.0 COOLING DEG. DAYS(BASE 21 0C) 0.0 1.6 0.8 116.2 378.3 426.5 542.4 515.2 388.6 142.9 18.8 0.0 2531.4 HEATING DEG. DAYS(BASE 18 0C) 139.9 42.8 60.2 1.9 0.0 0.0 0.0 0.0 0.0 0.0 4.9 125.9 375.5 DEWPOINT (MEAN C) 3.0 4.3 7.5 6.5 9.5 12.9 11.8 12.1 11.4 13.7 8.2 8.0 9.1 MIXING RATIO (G/KG) 4.97 5.43 6.87 6.45 8.08 10.51 9.48 9.81 9.29 10.57 7.36 7.03 7.99 VAPOUR PRESSURE (HPA) 7.88 8.59 10.79 10.12 12.58 16.21 14.61 15.11 14.41 16.48 11.57 11.11 12.46 SATURATION DEF. (HPA) 9.14 12.44 9.31 25.10 44.19 54.21 62.65 57.84 45.33 19.46 14.14 5.77 29.97 RELATIVE HUMIDITY (MEAN %) 49 45 56 32 23 25 20 22 25 51 48 70 39 RELATIVE HUMIDITY (MAX. %) 65 64 75 46 30 37 30 31 35 62 63 83 52 RELATIVE HUMIDITY (MIN. %) 34 31 42 22 18 17 13 15 18 40 34 55 28 RELATIVE HUMIDITY (MEAN% 03UTC) 61 61 70 43 28 35 29 27 33 56 58 77 48 RELATIVE HUMIDITY (MEAN% 09UTC) 44 38 50 30 21 23 18 18 21 46 40 63 34 RELATIVE HUMIDITY (MEAN% 15UTC) 47 37 48 27 21 20 16 20 25 50 44 71 36 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 0.1 13.0 57.3 7.4 0.2 0.0 4.9 1.0 0.0 44.8 16.2 84.0 228.9 DAYS WITH PRECIPITATION >=10 0 0 3 0 0 0 0 0 0 1 1 4 9 DAYS WITH PRECIPITATION >= 5 0 1 4 0 0 0 0 0 0 3 1 4 13 DAYS WITH PRECIPITATION >= 1 0 3 10 3 0 0 3 1 0 9 2 6 37 DAYS WITH PRECIPITATION 2 8 14 7 3 0 3 1 0 14 5 9 66 GREATEST DAILY PRECIPITATION 0.1 8.0 21.0 3.1 0.1 0.0 2.0 1.0 0.0 14.0 14.0 25.0 25.0 DAY 25 9 4 3 5 ** 30 10 ** 25 2 20 DAY WITH THUNDER STORM 1 0 4 6 4 0 2 1 0 8 0 3 29 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 3 3 4 12 23 20 18 1 15 1 0 1 101 WIND DIRECTION (PREVAILING) 135 90 90 270 315 270 315 315 315 90 90 90 315 PREVAILING WIND SPEED(KNOTS) 18.6 16.1 15.3 12.7 10.5 10.5 10.5 11.6 9.3 13.0 7.4 12.9 10.2 PREVAILING WIND PERCENT 14.2 20.7 21.8 15.5 25.6 31.1 23.1 27.4 25.8 13.7 11.8 23.0 14.1 CALMS PERCENT OF WIND 63.9 61.4 36.3 32.2 12.8 21.0 48.4 22.6 29.8 42.5 67.8 46.4 39.5 NO. OF WIND OBSERVATION 155 145 179 174 180 167 186 186 178 153 152 183 2038 VECTOR WIND DIRECTION (MEAN) 126 110 112 288 325 288 308 299 290 118 95 111 337 VECTOR WIND MAGNITUDE(KNOTS) 3.2 4.0 4.1 1.0 3.7 5.9 3.2 3.9 3.2 2.5 0.8 3.5 0.3 WIND STEADINESES (MEAN %) 71.1 80.0 50.6 12.3 40.2 80.8 56.1 54.2 60.4 55.6 34.8 64.8 4.9 WIND SPEED (MEAN KNOTS) 4.5 5.0 8.1 8.1 9.2 7.3 5.7 7.2 5.3 4.5 2.3 5.4 6.1 FASTEST WIND DIRECTION 100 110 120 310 360 290 30 300 330 120 150 90 100 FASTEST WIND SPEED (KNOTS) 41 39 29 39 35 25 35 27 31 25 23 27 41 DAY 6 8 3 21 3 3 27 13 7 7 20 13 DAYS WITH SKY CLEAR (0-2)/8 20 13 10 16 10 29 29 26 29 14 19 13 228 DAYS WITH P.CLOUDY (3-6)/8 7 11 12 12 16 1 2 5 1 7 6 10 90 DAYS WITH CLOUDY (7-8)/8 4 4 9 2 5 0 0 0 0 10 5 8 47 DAYS WITH VISIBILITY =< 2 KM 0 0 1 3 4 10 5 2 3 1 1 2 32 DURATION OF SUNSHINE HOURS 214.2 194.4 173.1 257.7 219.3 304.5 247.4 328.4 276.3 196.2 225.9 164.8 2802.2 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 996.2 992.4 988.2 988.3 983.3 978.0 975.0 975.9 981.5 988.3 992.0 994.6 986.1 MAX. QFE PRESSURE IN HPA 1001.7 998.9 993.8 996.6 990.4 982.5 980.7 980.8 988.6 994.5 998.0 1000.9 1001.7 DAY-HOUR 17- 6 1- 6 15- 6 22- 6 12- 6 1- 6 29-18 7- 6 30- 6 1-12 30- 6 2- 6 MIN. QFE PRESSURE IN HPA 985.0 984.6 978.4 981.5 977.9 972.6 969.5 971.7 975.4 980.2 985.8 985.4 969.5 DAY-HOUR 6-12 17-12 13-15 25-15 29-15 8-15 26-15 21-15 10-15 4-12 7- 9 23-18 MEAN QNH PRESSURE IN HPA 1023.7 1019.8 1015.5 1015.7 1010.5 1005.0 1002.0 1002.9 1008.7 1015.6 1019.4 1022.1 1013.4 MAX. QNH PRESSURE IN HPA 1029.3 1026.5 1021.2 1024.1 1017.8 1009.7 1007.8 1008.0 1015.9 1022.0 1025.5 1028.5 1029.3 DAY-HOUR 17- 6 1- 6 15- 6 22- 6 12- 6 1- 6 29-18 7- 6 30- 6 1-12 30- 6 2- 6 MIN. QNH PRESSURE IN HPA 1012.2 1011.8 1005.5 1008.7 1005.0 999.6 996.4 998.6 1002.4 1007.3 1013.1 1012.7 996.4 DAY-HOUR 6-12 17-12 13-15 25-15 29-15 8-15 26-15 21-15 10-15 4-12 7- 9 23-18 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** 999.8 1000.8 ****** ****** 1019.1 1022.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** 1006.2 1005.7 ****** ****** 1025.4 1028.6 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** 30- 6 7- 6 **-** **-** 30-18 2- 6 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** 994.1 996.4 ****** ****** 1012.4 1012.3 ****** DAY-HOUR **-** **-** **-** **-** **-** **-** 26-15 13-15 **-** **-** 7- 3 23-18 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 996.1 992.5 988.0 988.4 983.2 978.1 974.9 975.9 981.4 988.0 991.8 994.6 986.1 MAX. QFE PRESSURE IN HPA 1000.1 997.9 991.6 995.0 988.3 981.6 979.5 980.1 986.9 992.5 995.3 999.6 1000.1 DAY 12 1 15 22 13 1 30 8 30 28 30 2 MIN. QFE PRESSURE IN HPA 987.2 985.1 982.0 982.1 979.0 974.4 969.9 973.2 976.9 981.2 986.2 987.8 969.9 DAY 6 17 13 19 30 9 27 14 10 4 7 24 MEAN QNH PRESSURE IN HPA 1023.6 1019.9 1015.3 1015.7 1010.4 1005.2 1001.9 1002.9 1008.6 1015.3 1019.2 1022.1 1013.3 MAX. QNH PRESSURE IN HPA 1027.7 1025.4 1019.0 1022.5 1015.6 1008.8 1006.6 1007.2 1014.2 1019.9 1022.8 1027.2 1027.7 DAY 12 1 15 22 13 1 30 8 30 28 30 2 MIN. QNH PRESSURE IN HPA 1014.5 1012.4 1009.2 1009.3 1006.1 1001.4 996.8 1000.2 1004.0 1008.4 1013.5 1015.1 996.8 DAY 6 17 13 19 30 9 27 14 10 4 7 24 MEAN QFF PRESSURE IN HPA 1023.8 1019.9 1015.2 1015.0 1008.8 1003.3 999.8 1000.9 1006.9 1014.4 1018.8 1022.3 1012.4 MAX. QFF PRESSURE IN HPA 1028.1 1025.4 1019.5 1022.2 1014.2 1007.0 1005.2 1004.9 1012.9 1019.7 1022.7 1027.2 1028.1 DAY 30 1 15 22 13 1 30 8 30 28 30 2 MIN. QFF PRESSURE IN HPA 1014.5 1011.8 1009.0 1008.0 1004.4 999.4 994.3 997.9 1002.0 1007.0 1012.4 1015.1 994.3 DAY 6 17 13 19 30 9 27 13 10 4 7 24 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 997.4 993.7 989.2 989.6 984.4 978.9 975.8 976.9 982.7 989.1 993.0 995.7 987.2 MAX. QFE PRESSURE IN HPA 1001.7 998.9 993.8 996.6 990.4 982.5 980.6 980.8 988.6 994.0 998.0 1000.9 1001.7 DAY 17 1 15 22 12 1 30 7 30 31 30 2 MIN. QFE PRESSURE IN HPA 987.0 985.1 982.0 983.2 979.8 975.2 971.7 973.2 978.0 982.2 986.8 988.7 971.7 DAY 6 17 4 25 30 8 27 14 10 4 7 23 MEAN QNH PRESSURE IN HPA 1024.9 1021.1 1016.5 1016.9 1011.7 1006.0 1002.8 1004.0 1009.9 1016.4 1020.4 1023.2 1014.5 MAX. QNH PRESSURE IN HPA 1029.3 1026.5 1021.2 1024.1 1017.8 1009.7 1007.8 1008.0 1015.9 1021.4 1025.5 1028.5 1029.3 DAY 17 1 15 22 12 1 30 7 30 31 30 2 MIN. QNH PRESSURE IN HPA 1014.3 1012.4 1009.2 1010.4 1006.9 1002.2 998.6 1000.2 1005.1 1009.4 1014.1 1016.0 998.6 DAY 6 17 4 25 30 8 27 14 10 4 7 23 MEAN QFF PRESSURE IN HPA ****** ****** 1016.3 1016.0 1010.5 1004.2 1000.7 1001.9 1008.2 1015.5 1020.1 1023.4 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1021.8 1023.6 1016.3 1006.6 1006.2 1005.7 1014.5 1021.0 1025.3 1028.6 ****** DAY ** ** 15 22 12 28 30 7 30 31 30 2 MIN. QFF PRESSURE IN HPA ****** ****** 1008.8 1009.0 1006.5 1001.9 996.3 997.9 1003.3 1007.8 1013.2 1015.7 ****** DAY ** ** 4 25 23 30 27 14 10 4 7 23 PRESSURE AT HOUR 0900 UTC. MEAN QFE PRESSURE IN HPA 996.9 993.4 989.0 989.2 984.0 978.6 975.7 976.7 982.2 989.1 992.6 995.2 986.9 MAX. QFE PRESSURE IN HPA 1001.4 998.5 993.8 995.2 990.1 982.3 980.4 980.2 988.0 993.5 997.7 1000.0 1001.4 DAY 28 6 15 22 12 1 30 7 30 28 30 2 MIN. QFE PRESSURE IN HPA 986.0 985.6 980.5 983.4 979.9 974.6 971.1 973.6 977.3 982.1 985.8 987.5 971.1 DAY 6 17 4 4 30 8 27 14 10 4 7 23 MEAN QNH PRESSURE IN HPA 1024.4 1020.9 1016.4 1016.5 1011.2 1005.7 1002.7 1003.7 1009.4 1016.4 1020.0 1022.7 1014.2 MAX. QNH PRESSURE IN HPA 1029.0 1026.1 1021.2 1022.7 1017.5 1009.5 1007.5 1007.3 1015.3 1020.9 1025.2 1027.6 1029.0 DAY 28 6 15 22 12 1 30 7 30 28 30 2 MIN. QNH PRESSURE IN HPA 1013.3 1012.9 1007.6 1010.6 1007.0 1001.6 998.0 1000.6 1004.4 1009.3 1013.1 1014.8 998.0 DAY 6 17 4 4 30 8 27 14 10 4 7 23 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 995.2 991.5 987.6 987.6 982.8 977.4 974.5 975.3 980.9 987.8 991.3 993.8 985.5 MAX. QFE PRESSURE IN HPA 999.5 997.2 991.0 993.2 988.3 981.1 979.4 978.8 986.6 994.5 996.7 998.5 999.5 DAY 12 11 7 22 12 1 29 7 30 1 30 1 MIN. QFE PRESSURE IN HPA 985.0 984.6 980.0 982.0 978.3 973.3 970.0 972.3 976.0 980.2 986.6 985.9 970.0 DAY 6 17 13 4 29 8 26 24 11 4 25 23 MEAN QNH PRESSURE IN HPA 1022.7 1018.9 1014.9 1014.9 1010.0 1004.5 1001.5 1002.3 1008.0 1015.1 1018.7 1021.2 1012.7 MAX. QNH PRESSURE IN HPA 1027.1 1024.7 1018.4 1020.6 1015.6 1008.3 1006.5 1005.9 1013.9 1022.0 1024.2 1026.1 1027.1 DAY 12 11 7 22 12 1 29 7 30 1 30 1 MIN. QNH PRESSURE IN HPA 1012.2 1011.8 1007.1 1009.2 1005.4 1000.3 996.9 999.3 1003.0 1007.3 1013.9 1013.2 996.9 DAY 6 17 13 4 29 8 26 24 11 4 25 23 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 995.5 991.4 987.4 987.1 982.2 976.9 974.0 974.7 980.6 987.7 991.6 994.1 985.3 MAX. QFE PRESSURE IN HPA 1000.0 997.2 991.0 993.0 987.5 980.3 980.1 978.1 986.8 993.5 996.9 999.0 1000.0 DAY 12 11 31 7 12 3 29 31 30 1 30 1 MIN. QFE PRESSURE IN HPA 985.6 985.5 978.4 981.5 977.9 972.6 969.5 971.7 975.4 980.7 986.8 985.8 969.5 DAY 6 28 13 25 29 8 26 21 10 4 6 23 MEAN QNH PRESSURE IN HPA 1023.0 1018.8 1014.7 1014.4 1009.4 1003.9 1001.0 1001.8 1007.7 1015.0 1019.0 1021.6 1012.5 MAX. QNH PRESSURE IN HPA 1027.6 1024.7 1018.4 1020.4 1014.8 1007.4 1007.2 1005.2 1014.1 1020.9 1024.4 1026.6 1027.6 DAY 12 11 31 7 12 3 29 31 30 1 30 1 MIN. QNH PRESSURE IN HPA 1012.9 1012.8 1005.5 1008.7 1005.0 999.6 996.4 998.6 1002.4 1007.8 1014.1 1013.1 996.4 DAY 6 28 13 25 29 8 26 21 10 4 6 23 MEAN QFF PRESSURE IN HPA 1023.3 1018.8 1014.6 1013.5 1007.8 1002.0 998.9 999.7 1006.2 1014.2 1018.6 1021.8 1011.6 MAX. QFF PRESSURE IN HPA 1028.0 1025.1 1018.4 1020.3 1013.2 1005.4 1005.6 1003.6 1012.7 1019.6 1024.3 1026.6 1028.0 DAY 12 11 31 7 12 1 29 31 30 1 30 7 MIN. QFF PRESSURE IN HPA 1012.8 1012.4 1005.3 1007.1 1003.2 997.8 994.1 996.4 1000.3 1006.5 1013.2 1012.8 994.1 DAY 6 28 13 25 29 8 26 13 10 4 6 23 PRESSURE AT HOUR 1800 UTC. MEAN QFE PRESSURE IN HPA ****** ****** 988.1 988.2 983.4 977.9 975.0 975.7 981.4 988.3 992.0 994.6 ****** MAX. QFE PRESSURE IN HPA ****** ****** 991.8 994.3 988.3 980.0 980.7 979.1 987.6 994.4 998.0 999.0 ****** DAY ** ** 23 7 12 28 29 7 30 1 30 1 MIN. QFE PRESSURE IN HPA ****** ****** 980.6 983.0 979.5 974.6 970.5 972.5 976.2 981.6 986.8 985.4 ****** DAY ** ** 13 25 21 30 26 13 10 3 6 23 MEAN QNH PRESSURE IN HPA ****** ****** 1015.4 1015.6 1010.6 1004.9 1002.0 1002.8 1008.5 1015.6 1019.4 1022.0 ****** MAX. QNH PRESSURE IN HPA ****** ****** 1019.2 1021.8 1015.6 1007.1 1007.8 1006.2 1014.9 1021.9 1025.5 1026.6 ****** DAY ** ** 23 7 12 28 29 7 30 1 30 1 MIN. QNH PRESSURE IN HPA ****** ****** 1007.8 1010.2 1006.6 1001.6 997.4 999.5 1003.2 1008.8 1014.1 1012.7 ****** DAY ** ** 13 25 21 30 26 13 10 3 6 23 MEAN QFF PRESSURE IN HPA ****** ****** 1015.3 1014.6 1008.9 1002.9 999.8 1000.7 1006.9 1014.6 1019.1 1022.2 ****** MAX. QFF PRESSURE IN HPA ****** ****** 1019.2 1021.4 1014.3 1004.9 1006.0 1004.4 1013.4 1020.3 1025.4 1026.7 ****** DAY ** ** 23 7 12 28 29 31 30 1 30 1 MIN. QFF PRESSURE IN HPA ****** ****** 1007.5 1008.9 1004.8 999.4 995.0 997.1 1001.3 1007.0 1013.2 1012.3 ****** DAY ** ** 13 25 21 30 26 13 10 3 6 23 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 DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 M MEANS AND EXTREMES FOR THE YEAR 1988 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MINIMUN AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** DAYS WITH MINIMUM TEMP. >=21 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH MINIMUM TEMP. <=-4 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH FREEZING MIN.<= 0 **** **** **** **** **** **** **** **** **** **** **** **** **** TEMPERATURE RECORDS LOWEST(C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** DAY ** ** ** ** ** ** ** ** ** ** ** ** MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** **** **** **** **** **** **** **** **** **** **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** DAY ** ** ** ** ** ** ** ** ** ** ** ** DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAYS WITH PRECIPITATION >=10 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH PRECIPITATION >= 5 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH PRECIPITATION >= 1 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH PRECIPITATION **** **** **** **** **** **** **** **** **** **** **** **** **** GREATEST DAILY PRECIPITATION ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** DAY WITH THUNDER STORM **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH SNOW OR SLEET **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH DUST **** **** **** **** **** **** **** **** **** **** **** **** **** WIND DIRECTION (PREVAILING) *** *** *** *** *** *** *** *** *** *** *** *** *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** PREVAILING WIND PERCENT ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** CALMS PERCENT OF WIND ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** NO. OF WIND OBSERVATION **** **** **** **** **** **** **** **** **** **** **** **** 0 VECTOR WIND DIRECTION (MEAN) *** *** *** *** *** *** *** *** *** *** *** *** *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** WIND SPEED (MEAN KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** FASTEST WIND DIRECTION *** *** *** *** *** *** *** *** *** *** *** *** *** FASTEST WIND SPEED (KNOTS) *** *** *** *** *** *** *** *** *** *** *** *** *** DAY ** ** ** ** ** ** ** ** ** ** ** ** DAYS WITH SKY CLEAR (0-2)/8 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH P.CLOUDY (3-6)/8 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH CLOUDY (7-8)/8 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH VISIBILITY =< 2 KM **** **** **** **** **** **** **** **** **** **** **** **** **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 0900 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. 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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 DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 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. 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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 DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 M MEANS AND EXTREMES FOR THE YEAR 1989 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MINIMUN AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** DAYS WITH MINIMUM TEMP. >=21 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH MINIMUM TEMP. <=-4 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH FREEZING MIN.<= 0 **** **** **** **** **** **** **** **** **** **** **** **** **** TEMPERATURE RECORDS LOWEST(C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** DAY ** ** ** ** ** ** ** ** ** ** ** ** MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** **** **** **** **** **** **** **** **** **** **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** DAY ** ** ** ** ** ** ** ** ** ** ** ** DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DEWPOINT (MEAN C) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** *** *** *** *** *** *** *** *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAYS WITH PRECIPITATION >=10 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH PRECIPITATION >= 5 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH PRECIPITATION >= 1 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH PRECIPITATION **** **** **** **** **** **** **** **** **** **** **** **** **** GREATEST DAILY PRECIPITATION ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY ** ** ** ** ** ** ** ** ** ** ** ** DAY WITH THUNDER STORM **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH SNOW OR SLEET **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH DUST **** **** **** **** **** **** **** **** **** **** **** **** **** WIND DIRECTION (PREVAILING) *** *** *** *** *** *** *** *** *** *** *** *** *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** PREVAILING WIND PERCENT ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** CALMS PERCENT OF WIND ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** NO. OF WIND OBSERVATION **** **** **** **** **** **** **** **** **** **** **** **** 0 VECTOR WIND DIRECTION (MEAN) *** *** *** *** *** *** *** *** *** *** *** *** *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** ***** WIND SPEED (MEAN KNOTS) **** **** **** **** **** **** **** **** **** **** **** **** **** FASTEST WIND DIRECTION *** *** *** *** *** *** *** *** *** *** *** *** *** FASTEST WIND SPEED (KNOTS) *** *** *** *** *** *** *** *** *** *** *** *** *** DAY ** ** ** ** ** ** ** ** ** ** ** ** DAYS WITH SKY CLEAR (0-2)/8 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH P.CLOUDY (3-6)/8 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH CLOUDY (7-8)/8 **** **** **** **** **** **** **** **** **** **** **** **** **** DAYS WITH VISIBILITY =< 2 KM **** **** **** **** **** **** **** **** **** **** **** **** **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** DAY-HOUR **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** **-** 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 0900 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 1200 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 DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** 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 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 DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 M MEANS AND EXTREMES FOR THE YEAR 1990 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) ***** ***** ***** ***** ***** 38.7 41.2 39.4 36.5 29.7 22.9 16.6 ***** MINIMUN AIR TEMPERATURE (C) ***** ***** ***** ***** ***** 28.2 31.6 28.8 25.8 21.0 15.6 10.3 ***** DAYS WITH MINIMUM TEMP. >=21 **** **** **** **** **** 30 31 31 30 19 2 0 **** DAYS WITH MINIMUM TEMP. <=-4 **** **** **** **** **** 0 0 0 0 0 0 0 **** DAYS WITH FREEZING MIN.<= 0 **** **** **** **** **** 0 0 0 0 0 0 0 **** TEMPERATURE RECORDS LOWEST(C) ***** ***** ***** ***** ***** 23.8 27.0 25.8 21.0 16.4 10.0 2.0 ***** DAY ** ** ** ** ** 21 3 9 23 30 13 26 MAXIMUM AIR TEMPERATURE (C) ***** ***** ***** ***** ***** 44.1 46.7 45.7 42.6 34.8 27.9 21.2 ***** DAYS WITH MAXIMUM TEMP. >=30 **** **** **** **** **** 30 31 31 30 30 9 0 **** DAYS WITH MAXIMUM TEMP. <= 0 **** **** **** **** **** 0 0 0 0 0 0 0 **** TEMPERATURE RECORDS HIGHEST(C)***** ***** ***** ***** ***** 46.6 50.6 49.6 45.0 40.0 32.6 27.0 ***** DAY ** ** ** ** ** 5 25 14 5 8 4 4 DIF. BETWEEN (MAX.-MIN.) (C) ***** ***** ***** ***** ***** 15.9 15.1 16.9 16.8 13.8 12.3 10.9 ***** MEAN DAILY TEMP. (MDT) (C) ***** ***** ***** ***** ***** 36.2 39.1 37.2 34.2 27.9 21.8 15.7 ***** COOLING DEG. DAYS(BASE 21 0C)****** ****** ****** ****** ****** 455.2 561.4 503.6 396.3 215.0 47.3 2.4 ****** HEATING DEG. DAYS(BASE 18 0C)****** ****** ****** ****** ****** 0.0 0.0 0.0 0.0 0.0 4.1 96.0 ****** DEWPOINT (MEAN C) ***** ***** ***** ***** ***** 3.4 6.5 6.4 4.1 0.6 5.0 3.1 ***** MIXING RATIO (G/KG) ****** ****** ****** ****** ****** 5.37 6.51 6.45 6.24 4.37 5.76 5.03 ****** VAPOUR PRESSURE (HPA) ****** ****** ****** ****** ****** 8.34 10.07 10.00 9.68 6.89 9.09 7.96 ****** SATURATION DEF. (HPA) ****** ****** ****** ****** ****** 62.68 71.16 64.17 53.41 36.06 19.87 12.02 ****** RELATIVE HUMIDITY (MEAN %) *** *** *** *** *** 12 13 14 16 18 34 43 *** RELATIVE HUMIDITY (MAX. %) *** *** *** *** *** 17 19 18 22 25 46 58 *** RELATIVE HUMIDITY (MIN. %) *** *** *** *** *** 9 10 11 11 12 25 30 *** RELATIVE HUMIDITY (MEAN% 03UTC) *** *** *** *** *** 16 19 18 21 25 45 56 *** RELATIVE HUMIDITY (MEAN% 09UTC) *** *** *** *** *** 11 12 13 15 15 28 38 *** RELATIVE HUMIDITY (MEAN% 15UTC) *** *** *** *** *** 11 11 12 15 16 33 38 *** RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. ****** ****** ****** ****** ****** 0.0 0.0 0.0 0.0 0.0 17.3 8.5 ****** DAYS WITH PRECIPITATION >=10 **** **** **** **** **** 0 0 0 0 0 1 0 **** DAYS WITH PRECIPITATION >= 5 **** **** **** **** **** 0 0 0 0 0 1 1 **** DAYS WITH PRECIPITATION >= 1 **** **** **** **** **** 0 0 0 0 0 3 1 **** DAYS WITH PRECIPITATION **** **** **** **** **** 0 0 0 0 1 3 2 **** GREATEST DAILY PRECIPITATION ****** ****** ****** ****** ****** 0.0 0.0 0.0 0.0 0.0 12.3 8.0 ****** DAY ** ** ** ** ** ** ** ** ** ** 12 25 DAY WITH THUNDER STORM **** **** **** **** **** 0 0 0 0 0 1 0 **** DAYS WITH SNOW OR SLEET **** **** **** **** **** 0 0 0 0 0 0 0 **** DAYS WITH DUST **** **** **** **** **** 18 18 14 11 16 6 1 **** WIND DIRECTION (PREVAILING) *** *** *** *** *** 270 270 270 270 270 90 270 *** PREVAILING WIND SPEED(KNOTS) **** **** **** **** **** 15.7 18.1 18.0 17.8 11.8 13.5 6.6 **** PREVAILING WIND PERCENT ***** ***** ***** ***** ***** 28.0 25.2 26.5 26.7 16.1 7.3 10.3 ***** CALMS PERCENT OF WIND ***** ***** ***** ***** ***** 32.7 44.5 53.5 50.0 49.0 72.7 68.4 ***** NO. OF WIND OBSERVATION **** **** **** **** **** 150 155 155 150 155 150 155 1070 VECTOR WIND DIRECTION (MEAN) *** *** *** *** *** 260 253 262 266 246 129 137 *** VECTOR WIND MAGNITUDE(KNOTS) **** **** **** **** **** 5.1 4.1 4.7 5.6 1.1 0.9 1.0 **** WIND STEADINESES (MEAN %) ***** ***** ***** ***** ***** 63.0 56.2 75.8 76.7 22.9 30.0 38.5 ***** WIND SPEED (MEAN KNOTS) **** **** **** **** **** 8.1 7.3 6.2 7.3 4.8 3.0 2.6 **** FASTEST WIND DIRECTION *** *** *** *** *** 280 280 280 270 270 110 270 *** FASTEST WIND SPEED (KNOTS) *** *** *** *** *** 39 35 29 31 25 23 19 *** DAY ** ** ** ** ** 22 11 20 9 1 11 15 DAYS WITH SKY CLEAR (0-2)/8 **** **** **** **** **** 30 30 31 30 20 18 19 **** DAYS WITH P.CLOUDY (3-6)/8 **** **** **** **** **** 0 1 0 0 11 10 11 **** DAYS WITH CLOUDY (7-8)/8 **** **** **** **** **** 0 0 0 0 0 2 1 **** DAYS WITH VISIBILITY =< 2 KM **** **** **** **** **** 2 7 1 0 0 0 0 **** DURATION OF SUNSHINE HOURS ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 ****** ****** ****** ****** ****** 976.6 972.6 975.0 979.5 987.7 991.8 993.1 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 984.0 979.2 979.1 985.4 995.3 998.8 1000.5 ****** DAY-HOUR **-** **-** **-** **-** **-** 4- 6 15- 6 16- 6 27- 6 30- 6 14- 6 28- 6 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 969.6 968.5 970.2 974.1 981.4 983.4 986.8 ****** DAY-HOUR **-** **-** **-** **-** **-** 30-15 5-15 14-15 4-15 1-12 1-12 10-12 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1003.6 999.5 1002.0 1006.6 1015.0 1019.2 1020.5 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1011.2 1006.3 1006.2 1012.7 1022.8 1026.4 1028.1 ****** DAY-HOUR **-** **-** **-** **-** **-** 4- 6 15- 6 16- 6 27- 6 30- 6 14- 6 28- 6 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 996.5 995.4 997.1 1001.1 1008.6 1010.6 1014.1 ****** DAY-HOUR **-** **-** **-** **-** **-** 30-15 5-15 14-15 4-15 1-12 1-12 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 ****** ****** ****** ****** ****** 976.6 972.7 975.1 979.4 987.6 991.8 993.1 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 982.4 978.5 977.7 983.9 994.0 997.8 998.7 ****** DAY ** ** ** ** ** 5 15 4 27 30 14 28 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 971.6 969.7 970.9 975.4 982.6 984.6 988.2 ****** DAY ** ** ** ** ** 25 5 14 4 1 2 10 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1003.7 999.7 1002.1 1006.5 1014.9 1019.2 1020.6 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1009.6 1005.6 1004.8 1011.1 1021.4 1025.3 1026.3 ****** DAY ** ** ** ** ** 5 15 4 27 30 14 28 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 998.5 996.6 997.8 1002.4 1009.8 1011.8 1015.5 ****** DAY ** ** ** ** ** 25 5 14 4 1 2 10 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1001.8 997.6 1000.2 1004.9 1013.8 1018.7 1020.7 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1007.8 1003.5 1002.7 1009.6 1020.8 1025.3 1027.2 ****** DAY ** ** ** ** ** 5 15 4 27 30 14 28 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 996.5 994.8 995.6 1000.7 1008.3 1011.1 1015.3 ****** DAY ** ** ** ** ** 25 5 14 4 1 2 10 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 ****** ****** ****** ****** ****** 977.6 973.6 976.0 980.6 988.9 993.1 994.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 984.0 979.2 979.1 985.4 995.3 998.8 1000.5 ****** DAY ** ** ** ** ** 4 15 16 27 30 14 28 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 972.7 970.4 971.8 976.6 984.1 986.6 989.4 ****** DAY ** ** ** ** ** 25 5 14 5 1 2 10 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1004.7 1000.6 1003.1 1007.7 1016.2 1020.5 1021.9 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1011.2 1006.3 1006.2 1012.7 1022.8 1026.4 1028.1 ****** DAY ** ** ** ** ** 4 15 16 27 30 14 28 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 999.7 997.3 998.7 1003.7 1011.3 1013.9 1016.7 ****** DAY ** ** ** ** ** 25 5 14 5 1 2 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 ****** ****** ****** ****** ****** 977.3 973.2 975.7 980.3 988.4 992.3 993.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 983.4 979.2 978.5 985.0 994.1 998.4 998.9 ****** DAY ** ** ** ** ** 4 15 16 27 30 14 28 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 972.0 970.1 971.6 976.3 983.4 986.0 988.1 ****** DAY ** ** ** ** ** 30 5 14 5 1 1 10 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1004.3 1000.2 1002.7 1007.4 1015.7 1019.7 1020.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1010.6 1006.3 1005.6 1012.2 1021.6 1026.0 1026.5 ****** DAY ** ** ** ** ** 4 15 16 27 30 14 28 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 999.0 997.0 998.5 1003.3 1010.6 1013.3 1015.4 ****** DAY ** ** ** ** ** 30 5 14 5 1 1 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 ****** ****** ****** ****** ****** 975.9 972.0 974.5 978.7 987.0 990.8 992.0 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 983.0 978.0 976.9 982.9 992.8 997.1 998.0 ****** DAY ** ** ** ** ** 4 15 11 22 30 14 28 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 970.8 969.0 970.8 974.5 981.4 983.4 986.8 ****** DAY ** ** ** ** ** 30 5 14 4 1 1 10 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1003.0 998.9 1001.5 1005.8 1014.3 1018.2 1019.4 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1010.2 1005.1 1004.0 1010.1 1020.2 1024.6 1025.5 ****** DAY ** ** ** ** ** 4 15 11 22 30 14 28 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 997.7 995.9 997.7 1001.5 1008.6 1010.6 1014.1 ****** DAY ** ** ** ** ** 30 5 14 4 1 1 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 DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 ****** ****** ****** ****** ****** 975.5 971.4 973.9 978.4 986.9 991.2 992.4 ****** MAX. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 982.5 977.3 976.2 982.5 993.0 997.5 999.0 ****** DAY ** ** ** ** ** 4 15 4 22 30 14 28 MIN. QFE PRESSURE IN HPA ****** ****** ****** ****** ****** 969.6 968.5 970.2 974.1 982.8 983.6 987.6 ****** DAY ** ** ** ** ** 30 5 14 4 1 1 9 MEAN QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1002.5 998.4 1000.9 1005.5 1014.2 1018.6 1019.8 ****** MAX. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 1009.7 1004.4 1003.2 1009.7 1020.4 1025.0 1026.6 ****** DAY ** ** ** ** ** 4 15 4 22 30 14 28 MIN. QNH PRESSURE IN HPA ****** ****** ****** ****** ****** 996.5 995.4 997.1 1001.1 1010.0 1010.8 1014.9 ****** DAY ** ** ** ** ** 30 5 14 4 1 1 9 MEAN QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1000.7 996.2 999.0 1003.8 1013.2 1018.2 1020.0 ****** MAX. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 1008.0 1002.2 1001.4 1008.2 1019.9 1025.0 1027.5 ****** DAY ** ** ** ** ** 4 15 11 22 30 14 28 MIN. QFF PRESSURE IN HPA ****** ****** ****** ****** ****** 994.5 993.4 994.9 999.3 1008.7 1010.1 1014.6 ****** DAY ** ** ** ** ** 30 12 14 4 1 1 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 DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 M MEANS AND EXTREMES FOR THE YEAR 1991 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 12.1 12.9 17.9 27.9 31.3 38.8 40.0 38.6 35.6 28.6 22.0 13.4 26.6 MINIMUN AIR TEMPERATURE (C) 7.9 7.9 11.7 19.3 23.0 28.4 29.9 29.8 26.4 21.0 14.4 7.7 18.9 DAYS WITH MINIMUM TEMP. >=21 0 0 0 9 23 29 31 31 30 16 3 0 172 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS LOWEST(C) 1.0 1.0 4.0 12.0 17.5 20.4 24.5 26.0 23.0 16.5 10.0 1.4 1.0 DAY 7 10 11 7 4 13 31 30 4 1 27 19 MAXIMUM AIR TEMPERATURE (C) 15.6 16.8 22.0 33.0 36.1 43.7 46.2 44.6 41.3 33.3 26.3 17.1 31.3 DAYS WITH MAXIMUM TEMP. >=30 0 0 1 21 30 30 31 31 30 26 3 0 203 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 19.2 23.6 30.0 42.0 40.5 47.7 49.6 48.6 43.8 38.8 33.2 22.8 49.6 DAY 31 24 31 27 9 19 21 9 1 12 2 8 DIF. BETWEEN (MAX.-MIN.) (C) 7.7 8.9 10.3 13.7 13.1 15.3 16.3 14.8 14.9 12.3 11.9 9.4 12.4 MEAN DAILY TEMP. (MDT) (C) 11.8 12.3 16.9 26.1 29.6 36.1 38.0 37.2 33.9 27.2 20.3 12.4 25.1 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 4.7 154.0 265.6 452.6 527.6 501.3 386.6 191.8 24.8 0.0 2509.3 HEATING DEG. DAYS(BASE 18 0C) 193.7 158.9 64.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.2 176.0 596.7 DEWPOINT (MEAN C) 5.1 2.3 7.1 3.4 3.4 13.4 7.7 5.4 2.8 10.3 5.9 8.5 6.3 MIXING RATIO (G/KG) 5.73 5.00 6.72 5.26 5.26 11.88 7.06 6.02 5.22 8.49 6.86 7.27 6.73 VAPOUR PRESSURE (HPA) 9.06 7.90 10.53 8.27 8.23 18.15 10.90 9.33 8.16 13.29 10.75 11.45 10.50 SATURATION DEF. (HPA) 5.38 7.50 10.93 31.24 38.90 53.13 65.40 61.43 51.84 27.27 16.49 4.31 31.15 RELATIVE HUMIDITY (MEAN %) 65 53 53 25 18 26 15 14 15 36 39 74 36 RELATIVE HUMIDITY (MAX. %) 81 73 78 38 26 36 23 23 22 48 53 86 49 RELATIVE HUMIDITY (MIN. %) 50 34 35 15 13 21 10 9 9 27 27 62 26 RELATIVE HUMIDITY (MEAN% 03UTC) 78 68 75 36 26 35 23 23 21 46 50 85 47 RELATIVE HUMIDITY (MEAN% 09UTC) 59 48 48 19 16 22 14 12 13 32 34 67 32 RELATIVE HUMIDITY (MEAN% 15UTC) 64 46 42 20 16 24 12 10 12 34 37 77 33 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 86.2 46.5 55.8 11.6 0.0 0.0 0.0 0.0 0.0 1.0 21.0 63.3 285.4 DAYS WITH PRECIPITATION >=10 2 1 3 0 0 0 0 0 0 0 1 1 8 DAYS WITH PRECIPITATION >= 5 2 4 3 1 0 0 0 0 0 0 1 4 15 DAYS WITH PRECIPITATION >= 1 6 8 9 2 0 0 0 0 0 1 1 5 32 DAYS WITH PRECIPITATION 6 9 9 3 0 0 0 0 0 1 1 7 36 GREATEST DAILY PRECIPITATION 63.0 18.0 18.0 7.0 0.0 0.0 0.0 0.0 0.0 1.0 21.0 39.0 63.0 DAY 14 1 13 18 ** ** ** ** ** 15 5 22 DAY WITH THUNDER STORM 1 1 1 0 0 0 0 0 0 0 0 1 4 DAYS WITH SNOW OR SLEET 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH DUST 0 1 9 19 21 16 17 0 0 0 0 0 83 WIND DIRECTION (PREVAILING) 90 270 90 270 270 270 270 270 270 270 135 90 270 PREVAILING WIND SPEED(KNOTS) 14.7 9.2 20.2 13.9 18.2 15.8 17.5 16.5 10.1 9.7 14.4 13.9 14.3 PREVAILING WIND PERCENT 11.6 11.4 14.8 24.7 49.7 38.7 23.9 22.6 15.3 10.3 16.0 17.4 19.1 CALMS PERCENT OF WIND 66.5 60.0 47.1 26.0 32.3 32.7 61.3 67.7 72.0 76.1 65.3 69.0 56.4 NO. OF WIND OBSERVATION 155 140 155 150 155 150 155 155 150 155 150 155 1825 VECTOR WIND DIRECTION (MEAN) 108 138 127 249 268 273 266 264 277 302 121 96 253 VECTOR WIND MAGNITUDE(KNOTS) 1.7 1.5 2.3 1.6 9.8 5.3 4.7 3.9 1.3 1.4 3.4 2.6 1.5 WIND STEADINESES (MEAN %) 51.5 27.8 37.7 17.0 85.2 60.2 90.4 86.7 44.8 58.3 68.0 74.3 26.3 WIND SPEED (MEAN KNOTS) 3.3 5.4 6.1 9.4 11.5 8.8 5.2 4.5 2.9 2.4 5.0 3.5 5.7 FASTEST WIND DIRECTION 90 90 90 120 270 290 270 270 110 330 90 90 290 FASTEST WIND SPEED (KNOTS) 29 31 31 29 29 33 29 27 27 19 23 29 33 DAY 30 26 5 3 3 6 13 26 28 1 3 31 DAYS WITH SKY CLEAR (0-2)/8 11 13 10 11 17 29 31 31 29 18 19 12 231 DAYS WITH P.CLOUDY (3-6)/8 9 8 11 10 7 0 0 0 1 12 8 5 71 DAYS WITH CLOUDY (7-8)/8 11 7 10 9 7 1 0 0 0 1 3 14 63 DAYS WITH VISIBILITY =< 2 KM 1 1 2 1 5 1 0 0 0 0 0 1 12 DURATION OF SUNSHINE HOURS ****** 175.2 187.1 214.4 271.0 344.5 349.7 317.3 282.3 ****** 196.4 40.7 ****** ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 992.7 991.7 987.1 986.4 982.3 976.0 972.4 974.4 981.4 988.6 991.9 992.0 984.8 MAX. QFE PRESSURE IN HPA 1002.0 1000.4 994.0 992.4 986.6 984.0 978.3 980.1 988.7 995.2 997.0 999.3 1002.0 DAY-HOUR 28- 6 15- 6 8- 6 19- 6 8- 6 1- 6 2- 6 31- 6 29- 3 20- 3 27- 6 6- 6 MIN. QFE PRESSURE IN HPA 984.0 983.5 977.0 980.0 977.0 968.9 967.4 969.3 974.8 983.6 981.8 982.7 967.4 DAY-HOUR 25-12 7-12 6- 3 28-15 27-12 19-15 13-15 10-15 3-15 14-12 4-12 31-15 MEAN QNH PRESSURE IN HPA 1020.2 1019.1 1014.4 1013.7 1009.4 1003.1 999.3 1001.4 1008.6 1015.9 1019.3 1019.4 1012.0 MAX. QNH PRESSURE IN HPA 1029.6 1028.0 1021.4 1019.8 1013.9 1011.2 1005.4 1007.2 1016.0 1022.7 1024.5 1026.9 1029.6 DAY-HOUR 28- 6 15- 6 8- 6 19- 6 8- 6 1- 6 2- 6 31- 6 29- 3 20- 3 27- 6 6- 6 MIN. QNH PRESSURE IN HPA 1011.2 1010.7 1004.1 1007.1 1004.1 995.8 994.3 996.2 1001.8 1010.8 1009.0 1009.9 994.3 DAY-HOUR 25-12 7-12 6- 3 28-15 27-12 19-15 13-15 10-15 3-15 14-12 4-12 31-15 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 992.8 991.8 986.9 986.4 982.3 976.4 972.5 974.6 981.6 988.5 991.8 992.0 984.8 MAX. QFE PRESSURE IN HPA 1000.8 998.8 993.0 991.2 985.0 983.3 978.0 978.8 988.7 995.2 996.1 997.8 1000.8 DAY 28 16 8 19 8 1 2 31 29 20 27 6 MIN. QFE PRESSURE IN HPA 986.5 986.0 977.0 981.5 978.2 969.2 968.5 971.8 976.8 984.3 987.1 985.5 968.5 DAY 26 20 6 9 27 19 14 1 3 14 4 22 MEAN QNH PRESSURE IN HPA 1020.2 1019.2 1014.2 1013.7 1009.5 1003.4 999.5 1001.6 1008.7 1015.8 1019.2 1019.4 1012.0 MAX. QNH PRESSURE IN HPA 1028.4 1026.4 1020.4 1018.6 1012.2 1010.5 1005.1 1005.9 1016.0 1022.7 1023.6 1025.3 1028.4 DAY 28 16 8 19 8 1 2 31 29 20 27 6 MIN. QNH PRESSURE IN HPA 1013.8 1013.3 1004.1 1008.7 1005.3 996.1 995.4 998.7 1003.9 1011.5 1014.4 1012.8 995.4 DAY 26 20 6 9 27 19 14 1 3 14 4 22 MEAN QFF PRESSURE IN HPA 1020.7 1019.7 1014.1 1012.8 1008.3 1001.5 997.5 999.7 1007.1 1014.8 1018.8 1019.7 1011.2 MAX. QFF PRESSURE IN HPA 1029.3 1026.7 1021.1 1018.1 1011.3 1009.0 1003.1 1004.2 1014.5 1021.7 1023.7 1025.8 1029.3 DAY 28 10 8 14 25 1 2 31 29 20 27 6 MIN. QFF PRESSURE IN HPA 1014.3 1013.3 1004.2 1007.4 1003.9 993.5 993.4 996.7 1002.0 1010.1 1013.2 1013.1 993.4 DAY 26 20 6 28 27 19 14 5 3 14 4 22 ======================================================================================================================= TEHRAN 2006,MAY M.(S & A) STATION DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 993.9 993.1 988.2 987.6 983.5 977.2 973.4 975.6 982.8 989.8 993.2 993.0 986.0 MAX. QFE PRESSURE IN HPA 1002.0 1000.4 994.0 992.4 986.6 984.0 978.3 980.1 988.7 994.0 997.0 999.3 1002.0 DAY 28 15 8 19 8 1 2 31 29 18 27 6 MIN. QFE PRESSURE IN HPA 987.6 986.5 978.2 982.1 979.0 970.9 969.3 972.6 978.0 985.1 987.1 985.7 969.3 DAY 25 28 6 28 27 19 14 5 3 14 4 25 MEAN QNH PRESSURE IN HPA 1021.4 1020.5 1015.5 1014.9 1010.7 1004.3 1000.4 1002.7 1010.0 1017.1 1020.6 1020.5 1013.2 MAX. QNH PRESSURE IN HPA 1029.6 1028.0 1021.4 1019.8 1013.9 1011.2 1005.4 1007.2 1016.0 1021.4 1024.5 1026.9 1029.6 DAY 28 15 8 19 8 1 2 31 29 18 27 6 MIN. QNH PRESSURE IN HPA 1014.9 1013.8 1005.3 1009.3 1006.1 997.8 996.2 999.6 1005.1 1012.4 1014.4 1013.0 996.2 DAY 25 28 6 28 27 19 14 5 3 14 4 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 993.1 992.5 988.0 987.1 983.1 976.8 973.3 975.2 982.3 989.3 992.5 992.2 985.4 MAX. QFE PRESSURE IN HPA 1001.0 1000.4 993.2 991.9 986.1 983.0 978.1 979.6 987.0 993.4 996.8 998.1 1001.0 DAY 28 15 8 19 8 1 2 31 29 20 27 6 MIN. QFE PRESSURE IN HPA 986.6 985.5 980.5 981.7 978.5 970.4 969.0 971.7 977.5 984.1 985.9 982.9 969.0 DAY 25 28 6 28 27 19 14 1 3 14 4 25 MEAN QNH PRESSURE IN HPA 1020.6 1019.9 1015.3 1014.4 1010.3 1003.8 1000.2 1002.2 1009.5 1016.6 1019.9 1019.6 1012.7 MAX. QNH PRESSURE IN HPA 1028.6 1028.0 1020.6 1019.3 1013.4 1010.2 1005.2 1006.7 1014.3 1020.8 1024.3 1025.6 1028.6 DAY 28 15 8 19 8 1 2 31 29 20 27 6 MIN. QNH PRESSURE IN HPA 1013.9 1012.8 1007.6 1008.9 1005.6 997.3 995.9 998.6 1004.6 1011.3 1013.2 1010.1 995.9 DAY 25 28 6 28 27 19 14 1 3 14 4 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 991.7 990.5 986.2 985.7 981.6 975.3 971.8 973.7 980.5 987.7 990.9 991.1 983.9 MAX. QFE PRESSURE IN HPA 999.0 999.0 991.0 990.6 985.7 980.2 977.0 978.0 984.7 991.5 994.9 996.6 999.0 DAY 28 15 8 14 8 1 2 31 30 20 27 29 MIN. QFE PRESSURE IN HPA 984.0 983.5 980.5 980.8 977.0 969.3 968.2 970.3 975.3 983.6 981.8 982.9 968.2 DAY 25 7 6 28 27 19 14 1 3 14 4 25 MEAN QNH PRESSURE IN HPA 1019.1 1017.9 1013.5 1013.0 1008.7 1002.3 998.7 1000.6 1007.6 1015.0 1018.3 1018.5 1011.1 MAX. QNH PRESSURE IN HPA 1026.6 1026.6 1018.4 1018.0 1013.0 1007.3 1004.1 1005.1 1011.9 1018.9 1022.4 1024.1 1026.6 DAY 28 15 8 14 8 1 2 31 30 20 27 29 MIN. QNH PRESSURE IN HPA 1011.2 1010.7 1007.6 1008.0 1004.1 996.2 995.1 997.2 1002.3 1010.8 1009.0 1010.1 995.1 DAY 25 7 6 28 27 19 14 1 3 14 4 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 DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 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 992.3 990.9 986.2 985.2 980.9 974.7 971.0 973.1 980.1 987.7 991.2 991.7 983.7 MAX. QFE PRESSURE IN HPA 998.5 998.8 990.5 989.5 984.5 978.9 976.1 977.7 984.8 991.9 995.6 997.2 998.8 DAY 28 15 11 13 8 22 2 31 29 20 26 29 MIN. QFE PRESSURE IN HPA 985.0 984.0 980.5 980.0 977.3 968.9 967.4 969.3 974.8 984.2 984.6 982.7 967.4 DAY 25 7 6 28 28 19 13 10 3 9 4 31 MEAN QNH PRESSURE IN HPA 1019.7 1018.2 1013.4 1012.5 1008.1 1001.7 998.0 1000.1 1007.2 1015.0 1018.5 1019.1 1011.0 MAX. QNH PRESSURE IN HPA 1026.1 1026.4 1017.9 1016.8 1011.7 1006.0 1003.1 1004.8 1012.0 1019.3 1023.1 1024.7 1026.4 DAY 28 15 11 13 8 22 2 31 29 20 26 29 MIN. QNH PRESSURE IN HPA 1012.2 1011.2 1007.6 1007.1 1004.4 995.8 994.3 996.2 1001.8 1011.4 1011.8 1009.9 994.3 DAY 25 7 6 28 28 19 13 10 3 9 4 31 MEAN QFF PRESSURE IN HPA 1020.2 1018.7 1013.3 1011.6 1006.8 999.7 996.0 998.2 1005.6 1013.9 1018.1 1019.5 1010.1 MAX. QFF PRESSURE IN HPA 1026.9 1026.7 1018.3 1016.4 1010.3 1004.2 1001.1 1003.1 1010.7 1018.3 1023.2 1025.2 1026.9 DAY 28 15 11 13 8 1 2 31 29 20 26 29 MIN. QFF PRESSURE IN HPA 1012.2 1011.2 1007.8 1005.8 1002.9 993.1 992.3 994.1 1000.1 1010.2 1011.0 1010.3 992.3 DAY 31 28 6 28 16 19 13 10 3 9 4 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 DEHLORAN (40796) I.R OF IRAN METEOROLOGICAL ORGANIZATION (IRIMO) LATITUDE 32 41 N LONGITUDE 47 16 E DATA PROCESSING CENTER ELEVATION 232.0 M MEANS AND EXTREMES FOR THE YEAR 1992 JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEP. OCT. NOV. DEC. ANNUAL AIR TEMPERATURE (C) 9.1 11.4 14.6 23.3 30.1 37.2 39.3 39.0 35.7 29.0 19.8 12.3 25.1 MINIMUN AIR TEMPERATURE (C) 4.1 6.1 8.4 14.9 22.0 28.0 29.0 30.1 26.3 20.1 13.5 8.0 17.5 DAYS WITH MINIMUM TEMP. >=21 0 0 0 1 19 30 31 31 27 10 0 0 149 DAYS WITH MINIMUM TEMP. <=-4 0 0 0 0 0 0 0 0 0 0 0 0 0 DAYS WITH FREEZING MIN.<= 0 1 1 0 0 0 0 0 0 0 0 0 0 2 TEMPERATURE RECORDS LOWEST(C) -0.4 0.0 2.5 8.6 18.0 22.0 24.0 26.2 18.0 16.6 3.0 1.5 -0.4 DAY 4 12 1 1 4 6 13 26 29 28 28 27 MAXIMUM AIR TEMPERATURE (C) 12.6 15.0 18.6 27.5 34.3 42.0 45.1 44.3 40.5 34.2 24.3 15.5 29.5 DAYS WITH MAXIMUM TEMP. >=30 0 0 0 6 29 30 31 31 30 31 4 0 192 DAYS WITH MAXIMUM TEMP. <= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TEMPERATURE RECORDS HIGHEST(C) 16.5 20.0 24.0 31.2 43.2 46.6 48.0 48.0 44.5 38.8 31.4 22.2 48.0 DAY 20 20 29 12 31 30 7 17 3 4 4 1 DIF. BETWEEN (MAX.-MIN.) (C) 8.5 8.9 10.2 12.6 12.3 14.0 16.1 14.2 14.2 14.1 10.8 7.5 12.0 MEAN DAILY TEMP. (MDT) (C) 8.4 10.6 13.5 21.2 28.2 35.0 37.1 37.2 33.4 27.1 18.9 11.7 23.5 COOLING DEG. DAYS(BASE 21 0C) 0.0 0.0 0.0 37.9 222.1 420.7 498.9 501.6 371.5 190.1 18.5 0.0 2261.5 HEATING DEG. DAYS(BASE 18 0C) 298.5 215.3 140.5 5.3 0.0 0.0 0.0 0.0 0.0 0.0 44.7 195.1 899.3 DEWPOINT (MEAN C) 0.6 4.1 6.7 7.2 6.4 8.6 7.6 6.6 3.0 1.2 8.1 7.3 5.6 MIXING RATIO (G/KG) 4.23 5.54 6.52 6.71 6.38 7.51 6.95 6.45 5.16 4.39 7.35 6.67 6.15 VAPOUR PRESSURE (HPA) 6.70 8.75 10.27 10.52 9.97 11.65 10.75 10.01 8.07 6.91 11.57 10.54 9.64 SATURATION DEF. (HPA) 5.16 5.15 6.82 18.99 34.44 53.08 62.63 61.89 52.39 34.47 12.69 4.21 29.33 RELATIVE HUMIDITY (MEAN %) 59 65 64 39 25 19 16 15 14 18 51 73 38 RELATIVE HUMIDITY (MAX. %) 78 79 81 60 39 27 25 23 22 26 66 89 51 RELATIVE HUMIDITY (MIN. %) 40 51 48 26 17 13 10 10 9 12 38 58 28 RELATIVE HUMIDITY (MEAN% 03UTC) 71 77 77 57 38 26 24 22 22 26 62 84 49 RELATIVE HUMIDITY (MEAN% 09UTC) 51 59 57 32 20 18 14 12 12 14 44 67 33 RELATIVE HUMIDITY (MEAN% 15UTC) 56 61 60 32 21 16 11 12 12 17 50 75 35 RH=0 => RELATIVE HUMIDITY < 0.5% AMOUNT OF PRECIPITATION MM. 20.5 42.9 97.9 35.5 17.2 0.0 0.0 0.0 0.0 0.0 35.0 117.5 366.5 DAYS WITH PRECIPITATION >=10 0 1 3 1 1 0 0 0 0 0 1 4 11 DAYS WITH PRECIPITATION >= 5 1 3 6 1 1 0 0 0 0 0 3 5 20 DAYS WITH PRECIPITATION >= 1 7 8 8 4 2 0 0 0 0 0 6 10 45 DAYS WITH PRECIPITATION 8 12 9 5 3 0 0 0 0 0 6 11 54 GREATEST DAILY PRECIPITATION 7.0 14.0 43.0 30.0 16.0 0.0 0.0 0.0 0.0 0.0 16.0 37.0 43.0 DAY 30 23 15 27 9