Station Name: RAS AL KAHIMAH INTL AP WMO Station Number: 41184 National I.D. Number: Country: UNITED ARAB EMIRATES WMO Region: REGION II - ASIA Latitude: 25d 37m N Longitude: 055d 56m E Elevation: 31 m In the following tables, byr = beginning year of normals or extremes data period eyr = ending year of normals or extremes data period NA = Not Applicable, data not submitted or not computed * = value > 0 but < units resolution Ann-NCDC = annual value computed by NCDC from monthly values provided by Members ========================================================== The normals data and climate variable descriptions are presented in these tables as provided by the WMO Member country. ========================================================== Element 01: Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MAX_VAL (Statistic 04): Maximum Value MIN_VAL (Statistic 05): Minimum Value MNDLYMX (Statistic 09): Mean Daily Maximum Value MNDLYMI (Statistic 10): Mean Daily Minimum Value -------------------------------------------------- byr: 1977 1977 1977 1977 1977 eyr: 1991 1991 1991 1991 1991 Statistic: MEAN MAX_VAL MIN_VAL MNDLYMX MNDLYMI Month -------------------------------------------------- Jan 18.3 32.0 4.4 24.8 11.8 Feb 19.4 33.4 4.6 25.9 12.9 Mar 22.3 42.2 7.6 29.5 15.5 Apr 26.8 42.8 11.0 35.2 18.9 May 31.2 46.6 15.0 39.3 22.6 Jun 33.6 48.1 18.7 42.1 25.6 Jul 35.5 47.8 22.5 42.7 28.5 Aug 35.0 47.2 22.4 41.9 28.6 Sep 32.2 46.1 18.3 40.1 24.7 Oct 28.4 41.6 11.8 36.7 20.7 Nov 23.5 37.9 7.3 31.4 16.6 Dec 20.3 32.3 5.2 26.8 13.5 Annual 27.2 48.1 4.4 34.7 20.0 Ann-NCDC 27.2 NA NA 34.7 20.0 -------------------------------------------------- Element 04: Wet Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value ------------------ byr: 1977 eyr: 1991 Month ------------------ Jan 14.5 Feb 15.3 Mar 17.2 Apr 19.5 May 22.0 Jun 24.6 Jul 26.4 Aug 26.9 Sep 25.0 Oct 22.3 Nov 18.7 Dec 16.0 Annual 20.7 Ann-NCDC 20.7 ------------------ Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value MAX_MLY (Statistic 26): Maximum Monthly Value -------------------------- byr: 1977 1977 eyr: 1991 1991 Statistic: MEANMLY MAX_MLY Month -------------------------- Jan 12.8 56.3 Feb 35.7 121.7 Mar 35.0 128.7 Apr 12.5 118.0 May 2.8 37.7 Jun 0.0 0.0 Jul 0.6 8.5 Aug 0.3 2.8 Sep 1.3 21.0 Oct 6.4 97.0 Nov 8.0 89.6 Dec 17.4 99.4 Annual 132.8 128.7 Ann-NCDC 132.8 NA -------------------------- Element 08: Maximum 24-Hour Precipitation (mm) MAX_VAL (Statistic 04): Maximum Value ------------------ byr: 1977 eyr: 1991 Month ------------------ Jan 28.4 Feb 75.0 Mar 52.4 Apr 97.0 May 29.9 Jun 0.0 Jul 8.5 Aug 2.3 Sep 21.0 Oct 97.0 Nov 44.0 Dec 34.8 Annual 97.0 Ann-NCDC NA ------------------ Element 11: Relative Humidity (%) MEAN (Statistic 01): Mean Value MIN_VAL (Statistic 05): Minimum Value MNDLYMX (Statistic 09): Mean Daily Maximum Value MNDLYMI (Statistic 10): Mean Daily Minimum Value ------------------------------------------ byr: 1977 1977 1977 1977 eyr: 1991 1991 1991 1991 Statistic: MEAN MIN_VAL MNDLYMX MNDLYMI Month ------------------------------------------ Jan 69.0 18.0 89.0 44.0 Feb 66.0 12.0 88.0 41.0 Mar 62.0 7.0 86.0 36.0 Apr 53.0 7.0 78.0 27.0 May 46.0 7.0 71.0 23.0 Jun 50.0 8.0 76.0 25.0 Jul 50.0 5.0 75.0 28.0 Aug 53.0 7.0 76.0 32.0 Sep 57.0 5.0 82.0 30.0 Oct 59.0 7.0 84.0 30.0 Nov 62.0 10.0 84.0 34.0 Dec 69.0 14.0 88.0 43.0 Annual 58.0 5.0 81.0 33.0 Ann-NCDC 58.0 NA 81.4 32.8 ------------------------------------------ Element 12: Sea Level Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1977 eyr: 1991 Month ------------------ Jan 1018.7 Feb 1016.9 Mar 1013.9 Apr 1010.4 May 1006.2 Jun 1000.7 Jul 997.6 Aug 999.5 Sep 1005.7 Oct 1012.3 Nov 1016.2 Dec 1018.6 Annual 1009.7 Ann-NCDC 1009.7 ------------------ Element 14: Vapor Pressure (hPa) MEAN (Statistic 01): Mean Value ------------------ byr: 1977 eyr: 1991 Month ------------------ Jan 14.0 Feb 14.6 Mar 15.9 Apr 17.1 May 19.5 Jun 24.2 Jul 27.4 Aug 29.1 Sep 26.1 Oct 22.3 Nov 18.0 Dec 15.4 Annual 20.3 Ann-NCDC 20.3 ------------------ Element 15: Sunshine Statistic 44: Mean Number of Hours Qualifier: 06: Mean Daily Value Qualifier: NCDC: Mean Monthly Value Computed by NCDC from Mean Daily Values Provided by Member -------------------------- byr: 1977 1977 eyr: 1991 1991 Qualifier: 06 NCDC Month -------------------------- Jan 7.7 238.7 Feb 7.8 218.4 Mar 7.7 238.7 Apr 9.5 285.0 May 11.1 344.1 Jun 10.9 327.0 Jul 9.8 303.8 Aug 10.0 310.0 Sep 10.0 300.0 Oct 9.8 303.8 Nov 9.3 279.0 Dec 7.6 235.6 Annual 9.3 3384.1 Ann-NCDC NA 3384.1 -------------------------- Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value MAXGUST (Statistic 30): Maximum Gust -------------------------- byr: 1977 1977 eyr: 1991 1991 Statistic: MEAN MAXGUST Month -------------------------- Jan 2.2 18.0 Feb 2.3 21.6 Mar 2.6 35.5 Apr 2.6 26.8 May 2.8 23.2 Jun 2.9 15.4 Jul 2.8 30.9 Aug 2.8 17.0 Sep 2.3 19.0 Oct 2.0 16.0 Nov 2.0 21.6 Dec 2.0 20.6 Annual 2.5 35.5 Ann-NCDC 2.4 NA -------------------------- Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1977 eyr: 1991 Month ------------------ Jan 0.1 Feb 1.5 Mar 2.4 Apr 0.6 May 0.2 Jun 0.0 Jul 0.1 Aug 0.1 Sep 0.0 Oct 0.0 Nov 0.2 Dec 0.6 Annual 5.7 Ann-NCDC 5.8 ------------------ Element 54: Number Days with Rainfall GE Threshold (count) Qualifier: 0.2 mm MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1977 eyr: 1991 Month ------------------ Jan 1.7 Feb 3.3 Mar 4.7 Apr 0.9 May 0.2 Jun 0.0 Jul 0.1 Aug 0.2 Sep 0.1 Oct 0.1 Nov 0.7 Dec 2.3 Annual 14.3 Ann-NCDC 14.3 ------------------ Element 58: Number Days with Fog/Ice Fog (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1977 eyr: 1991 Month ------------------ Jan 0.8 Feb 1.8 Mar 2.4 Apr 0.6 May 0.3 Jun 0.9 Jul 0.3 Aug 0.3 Sep 2.3 Oct 2.6 Nov 0.6 Dec 0.7 Annual 13.6 Ann-NCDC 13.6 ------------------ Element 63: Number Days with Blowing Dust/Sand (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1977 eyr: 1991 Month ------------------ Jan 0.7 Feb 0.0 Mar 0.5 Apr 0.3 May 0.1 Jun 0.0 Jul 0.2 Aug 0.2 Sep 0.2 Oct 0.1 Nov 0.0 Dec 0.0 Annual 2.2 Ann-NCDC 2.3 ------------------ Element 65: Number Days with Visibility LE Threshold (count) Qualifier: 8.0 km MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1977 eyr: 1991 Month ------------------ Jan 6.9 Feb 7.4 Mar 10.4 Apr 8.1 May 6.8 Jun 13.8 Jul 15.4 Aug 12.7 Sep 10.8 Oct 9.7 Nov 4.9 Dec 6.1 Annual 113.0 Ann-NCDC 113.0 ------------------ Element BT: Number Days with Occurrence of Rain (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1977 eyr: 1991 Month ------------------ Jan 3.7 Feb 5.4 Mar 6.3 Apr 1.7 May 0.2 Jun 0.0 Jul 0.1 Aug 0.3 Sep 0.1 Oct 0.2 Nov 1.1 Dec 3.9 Annual 23.0 Ann-NCDC 23.0 ------------------