Station Name: JERBA WMO Station Number: 60769 National I.D. Number: Country: TUNISIA WMO Region: REGION I - AFRICA Latitude: 33d 52m N Longitude: 010d 46m E Elevation: 4 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 ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 12.5 Feb 13.5 Mar 15.2 Apr 17.8 May 21.0 Jun 24.4 Jul 26.9 Aug 27.7 Sep 25.9 Oct 22.3 Nov 17.3 Dec 13.7 Annual 19.8 Ann-NCDC 19.9 ------------------ Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MAX_DLY (Statistic 11): Maximum Daily Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: MEAN MAX_DLY DATEMAX Month ---------------------------------- Jan 15.9 28.3 197928 Feb 17.5 31.3 196622 Mar 19.5 38.2 198130 Apr 22.0 38.2 198429 May 25.5 42.6 199023 Jun 28.6 43.4 198226 Jul 31.9 46.0 198103 Aug 32.3 44.1 197906 Sep 29.9 42.8 196816 Oct 26.0 39.3 198405 Nov 21.3 34.4 196407 Dec 17.1 26.3 198130 Annual 24.0 46.019810703 Ann-NCDC 24.0 NA NA ---------------------------------- Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MIN_DLY (Statistic 13): Minimum Daily Value DATEMIN (Statistic 14): Date (Year/Day) of Occurrence of Minimum Daily Value ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Statistic: MEAN MIN_DLY DATEMIN Month ---------------------------------- Jan 8.9 0.5 198511 Feb 9.2 1.0 196303 Mar 11.0 2.8 197001 Apr 13.4 5.1 197005 May 16.4 7.4 196626 Jun 19.7 11.8 196209 Jul 21.9 15.2 198005 Aug 22.9 14.7 198814 Sep 21.6 14.3 197825 Oct 18.2 9.1 196428 Nov 13.7 5.2 196222 Dec 10.2 2.1 198015 Annual 15.6 0.519850111 Ann-NCDC 15.6 NA NA ---------------------------------- Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 28.5 Feb 20.5 Mar 19.0 Apr 13.3 May 5.1 Jun 1.2 Jul 0.8 Aug 3.3 Sep 19.8 Oct 53.5 Nov 33.8 Dec 35.8 Annual 234.6 Ann-NCDC 234.6 ------------------ Element 08: Maximum 24-Hour Precipitation (mm) MAX_VAL (Statistic 04): Maximum Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MAX_VAL DATEMAX Month -------------------------- Jan 111.1 197614 Feb 67.6 197518 Mar 60.9 197506 Apr 24.2 197210 May 17.5 197224 Jun 4.6 197420 Jul 4.5 198901 Aug 32.7 197331 Sep 73.5 197030 Oct 135.0 197529 Nov 138.3 196225 Dec 55.0 197020 Annual 138.319621125 Ann-NCDC NA NA -------------------------- Element 11: Relative Humidity (%) MEAN (Statistic 01): Mean Value MNDLYMX (Statistic 09): Mean Daily Maximum Value MNDLYMI (Statistic 10): Mean Daily Minimum Value MAX_DLY (Statistic 11): Maximum Daily Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value MIN_DLY (Statistic 13): Minimum Daily Value DATEMIN (Statistic 14): Date (Year/Day) of Occurrence of Minimum Daily Value ------------------------------------------------------------------ byr: 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 Statistic: MEAN MNDLYMX MNDLYMI MAX_DLY DATEMAX MIN_DLY DATEMIN Month ------------------------------------------------------------------ Jan 69.0 87.0 51.0 100.0 199008 16.0 198213 Feb 67.0 87.0 46.0 100.0 199025 10.0 197911 Mar 66.0 88.0 45.0 100.0 198907 9.0 198815 Apr 66.0 87.0 44.0 100.0 199018 8.0 198508 May 65.0 87.0 43.0 100.0 198612 8.0 199023 Jun 66.0 88.0 44.0 100.0 199001 10.0 198224 Jul 63.0 87.0 40.0 100.0 198005 9.0 198503 Aug 65.0 87.0 43.0 100.0 198617 5.0 198813 Sep 69.0 89.0 48.0 99.0 198917 8.0 199026 Oct 68.0 88.0 48.0 100.0 198719 9.0 197512 Nov 67.0 86.0 48.0 100.0 198827 5.0 197311 Dec 70.0 88.0 52.0 100.0 199016 6.0 197305 Annual 67.0 87.0 46.0 100.019901216 5.019731111 Ann-NCDC 66.8 87.4 46.0 NA NA NA NA ------------------------------------------------------------------ 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: 1961 1961 eyr: 1990 1990 Qualifier: 06 NCDC Month -------------------------- Jan 6.7 207.7 Feb 7.4 207.2 Mar 7.9 244.9 Apr 8.8 264.0 May 10.1 313.1 Jun 10.7 321.0 Jul 12.1 375.1 Aug 11.3 350.3 Sep 9.2 276.0 Oct 8.0 248.0 Nov 7.1 213.0 Dec 6.6 204.6 Annual 8.8 3224.9 Ann-NCDC NA 3224.9 -------------------------- Element 38: Piche Evaporation (mm) MEANDLY (Statistic 06): Mean Daily Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 3.0 Feb 3.3 Mar 3.9 Apr 4.4 May 4.9 Jun 5.0 Jul 5.4 Aug 5.2 Sep 4.2 Oct 3.9 Nov 3.8 Dec 3.4 Annual 4.2 Ann-NCDC NA ------------------ Element BT: Number Days with Occurrence of Rain (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 4.0 Feb 4.0 Mar 3.0 Apr 3.0 May 2.0 Jun 1.0 Jul 0.0 Aug 0.0 Sep 2.0 Oct 4.0 Nov 4.0 Dec 4.0 Annual 30.0 Ann-NCDC 31.0 ------------------