Station Name: Tiree WMO Station Number: 03100 National I.D. Number: Country: UNITED KINGDOM OF GREAT BRITAIN & NORTHERN IRELAND WMO Region: REGION VI - EUROPE Latitude: 56d 30m N Longitude: 006d 53m W Elevation: 9 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 5.1 Feb 4.8 Mar 5.8 Apr 7.2 May 9.6 Jun 11.9 Jul 13.3 Aug 13.4 Sep 12.1 Oct 10.3 Nov 7.1 Dec 5.9 Annual 8.8 Ann-NCDC 8.9 ------------------ Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MAX_VAL (Statistic 04): Maximum Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN MAX_VAL Month -------------------------- Jan 7.3 11.8 Feb 7.1 11.4 Mar 8.3 12.4 Apr 10.1 19.8 May 12.6 21.3 Jun 14.7 25.0 Jul 15.8 23.7 Aug 16.0 25.0 Sep 14.5 19.6 Oct 12.5 18.3 Nov 9.5 14.6 Dec 8.1 12.7 Annual 11.3 25.0 Ann-NCDC 11.4 NA -------------------------- Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value MIN_VAL (Statistic 05): Minimum Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN MIN_VAL Month -------------------------- Jan 2.9 -6.4 Feb 2.6 -5.8 Mar 3.3 -4.8 Apr 4.4 -3.8 May 6.7 -0.3 Jun 9.1 2.3 Jul 10.8 6.0 Aug 10.9 4.9 Sep 9.8 2.0 Oct 8.1 -0.3 Nov 4.8 -3.3 Dec 3.8 -7.0 Annual 6.4 -7.0 Ann-NCDC 6.4 NA -------------------------- Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value MIN_MLY (Statistic 20): Minimum Monthly Value QUIN20% (Statistic 22): First Quintile QUIN40% (Statistic 23): Second Quintile QUIN60% (Statistic 24): Third Quintile QUIN80% (Statistic 25): Fourth Quintile MAX_MLY (Statistic 26): Maximum Monthly Value ------------------------------------------------------------------ byr: 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 Statistic: MEANMLY MIN_MLY QUIN20% QUIN40% QUIN60% QUIN80% MAX_MLY Month ------------------------------------------------------------------ Jan 128.0 17.0 81.0 114.5 136.0 165.5 230.0 Feb 79.0 7.0 38.5 65.0 84.0 107.5 246.0 Mar 96.0 5.0 59.5 76.5 105.0 139.5 195.0 Apr 59.0 8.0 33.0 46.5 63.5 90.5 133.0 May 59.0 15.0 32.0 47.0 68.5 83.0 178.0 Jun 61.0 25.0 43.0 50.5 63.0 80.0 111.0 Jul 79.0 24.0 47.0 66.0 76.0 104.0 200.0 Aug 95.0 11.0 58.0 73.0 97.5 115.5 237.0 Sep 130.0 43.0 94.0 119.5 145.5 160.5 228.0 Oct 142.0 63.0 84.5 132.5 154.0 175.5 246.0 Nov 123.0 44.0 86.5 106.5 130.5 162.0 215.0 Dec 121.0 41.0 78.0 107.0 135.5 157.5 235.0 Annual 1172.0 856.0 1023.0 1114.0 1227.5 1317.0 1521.0 Ann-NCDC 1172.0 NA NA NA NA NA NA ------------------------------------------------------------------ Element 10: Snow Depth (cm) MN09LST (Statistic 79): Mean of Observations at 0900 LST ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2.2 Feb 1.2 Mar 0.4 Apr 0.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 0.0 Dec 1.5 Annual 5.3 Ann-NCDC NA ------------------ Element 11: Relative Humidity (%) MNDLYMX (Statistic 09): Mean Daily Maximum Value MNDLYMI (Statistic 10): Mean Daily Minimum Value -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MNDLYMX MNDLYMI Month -------------------------- Jan 87.0 83.0 Feb 87.0 81.0 Mar 87.0 79.0 Apr 89.0 77.0 May 89.0 76.0 Jun 91.0 78.0 Jul 91.0 81.0 Aug 91.0 81.0 Sep 90.0 81.0 Oct 89.0 83.0 Nov 88.0 80.0 Dec 88.0 83.0 Annual 90.0 82.0 Ann-NCDC 88.9 80.2 -------------------------- Element 15: Sunshine MN_#HRS (Statistic 44): Mean Number of Hours ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 39.5 Feb 66.2 Mar 108.5 Apr 170.1 May 213.6 Jun 194.9 Jul 158.8 Aug 156.1 Sep 111.1 Oct 78.3 Nov 48.0 Dec 30.0 Annual 1375.1 Ann-NCDC 1375.1 ------------------ Element 16: Wind Speed (m/sec) MEAN (Statistic 01): Mean Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 9.5 Feb 9.0 Mar 8.7 Apr 6.9 May 6.6 Jun 6.1 Jul 6.0 Aug 6.0 Sep 7.4 Oct 8.5 Nov 8.6 Dec 9.3 Annual 7.7 Ann-NCDC 7.7 ------------------ Element 51: Number Days with Thunder (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1.0 Feb 0.0 Mar 0.0 Apr 0.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 1.0 Oct 0.0 Nov 0.0 Dec 1.0 Annual 5.0 Ann-NCDC 3.0 ------------------ Element 53: Number Days with Hail (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 8.0 Feb 6.0 Mar 7.0 Apr 4.0 May 1.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 1.0 Oct 3.0 Nov 7.0 Dec 8.0 Annual 46.0 Ann-NCDC 45.0 ------------------ Element 56: Number Days with Snowfall (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 2.0 Feb 3.0 Mar 2.0 Apr 1.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 1.0 Dec 2.0 Annual 11.0 Ann-NCDC 11.0 ------------------ Element 57: Number Days with Snow on Ground (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 1.0 Feb 1.0 Mar 0.0 Apr 0.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 0.0 Dec 1.0 Annual 4.0 Ann-NCDC 3.0 ------------------ Element 76: Number Days with Air Frost (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 4.0 Feb 5.0 Mar 3.0 Apr 2.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 1.0 Dec 3.0 Annual 18.0 Ann-NCDC 18.0 ------------------ Element 77: Number Days with Grass Frost (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 11.0 Feb 11.0 Mar 10.0 Apr 9.0 May 4.0 Jun 1.0 Jul 0.0 Aug 0.0 Sep 1.0 Oct 2.0 Nov 8.0 Dec 9.0 Annual 68.0 Ann-NCDC 66.0 ------------------ Element 95: Number Days with Precipitation GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 0.2 mm Qualifier: 1.0 mm Qualifier: 10.0 mm ---------------------------------- byr: 1961 1961 1961 eyr: 1990 1990 1990 Qualifier: 0.2 1.0 10.0 Month ---------------------------------- Jan 23.0 19.0 4.0 Feb 17.0 13.0 2.0 Mar 20.0 16.0 2.0 Apr 16.0 11.0 1.0 May 16.0 11.0 1.0 Jun 16.0 11.0 1.0 Jul 18.0 13.0 2.0 Aug 18.0 14.0 3.0 Sep 21.0 18.0 4.0 Oct 23.0 19.0 4.0 Nov 22.0 19.0 3.0 Dec 24.0 20.0 3.0 Annual 234.0 184.0 33.0 Ann-NCDC 234.0 184.0 30.0 ---------------------------------- Element AK: Number Days with Sleet/Snow (count) Statistic 15: Mean Monthly Value Qualifier: ------------------ byr: 1961 eyr: 1990 Month ------------------ Jan 6.0 Feb 5.0 Mar 5.0 Apr 2.0 May 0.0 Jun 0.0 Jul 0.0 Aug 0.0 Sep 0.0 Oct 0.0 Nov 2.0 Dec 4.0 Annual 24.0 Ann-NCDC 24.0 ------------------