Station Name: SLAVE LAKE A , AB WMO Station Number: 71069 National I.D. Number: 03066001 Country: CANADA WMO Region: REGION IV - NORTH & CENTRAL AMERICA Latitude: 55d 18m N Longitude: 114d 47m W Elevation: 581 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: 1970 eyr: 1990 Month ------------------ Jan -14.6 Feb -11.8 Mar -5.1 Apr 3.1 May 9.5 Jun 13.7 Jul 15.7 Aug 14.4 Sep 9.2 Oct 3.9 Nov -6.4 Dec -13.4 Annual 1.5 Ann-NCDC 1.5 ------------------ Element 01: Dry Bulb Temperature (deg C) Qualifier: 01: Mean Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1970 eyr: 1990 Month ------------------ Jan 20 Feb 20 Mar 20 Apr 21 May 21 Jun 21 Jul 21 Aug 21 Sep 21 Oct 21 Nov 21 Dec 21 Annual NA Ann-NCDC NA ------------------ 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: 1970 1970 1970 eyr: 1990 1990 1990 Statistic: MEAN MAX_DLY DATEMAX Month ---------------------------------- Jan -9.5 13.3 197323 Feb -6.1 14.8 198826 Mar 0.7 15.4 198516 Apr 9.3 28.6 197725 May 15.9 32.5 198626 Jun 19.5 33.3 197003 Jul 21.3 32.2 197512 Aug 20.1 31.8 198402 Sep 14.8 29.6 198805 Oct 9.2 28.1 198006 Nov -2.1 19.1 197802 Dec -8.7 12.4 199007 Annual 7.0 33.3 NA Ann-NCDC 7.0 NA NA ---------------------------------- Element 02: Maximum Dry Bulb Temperature (deg C) Statistic 98: Number of Years used to Calculate Normal Qualifier: 01: Mean Value Qualifier: 11: Maximum Daily Value -------------------------- byr: 1970 1970 eyr: 1990 1990 Qualifier: 01 11 Month -------------------------- Jan 20 20 Feb 20 21 Mar 20 20 Apr 21 21 May 21 21 Jun 21 21 Jul 21 21 Aug 21 21 Sep 21 21 Oct 21 21 Nov 21 21 Dec 21 21 Annual NA NA Ann-NCDC 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: 1970 1970 1970 eyr: 1990 1990 1990 Statistic: MEAN MIN_DLY DATEMIN Month ---------------------------------- Jan -19.8 -42.8 197264 Feb -17.6 -40.0 197226 Mar -11.0 -38.3 197202 Apr -3.1 -26.1 197501 May 3.1 -7.2 197402 Jun 7.8 -2.7 198207 Jul 10.0 3.1 198905 Aug 8.6 -2.1 198226 Sep 3.6 -7.8 197227 Oct -1.4 -21.8 198431 Nov -10.9 -36.1 198526 Dec -18.2 -41.7 197709 Annual -4.1 -42.8 NA Ann-NCDC -4.1 NA NA ---------------------------------- Element 03: Minimum Dry Bulb Temperature (deg C) Statistic 98: Number of Years used to Calculate Normal Qualifier: 01: Mean Value Qualifier: 13: Minimum Daily Value -------------------------- byr: 1970 1970 eyr: 1990 1990 Qualifier: 01 13 Month -------------------------- Jan 20 20 Feb 20 21 Mar 20 20 Apr 21 21 May 21 21 Jun 21 21 Jul 21 21 Aug 21 21 Sep 21 21 Oct 21 21 Nov 21 21 Dec 21 21 Annual NA NA Ann-NCDC NA NA -------------------------- Element 06: Precipitation (mm) MEANMLY (Statistic 15): Mean Monthly Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1970 1970 eyr: 1990 1990 Statistic: MEANMLY #_YEARS Month -------------------------- Jan 24.2 20 Feb 16.7 20 Mar 18.7 20 Apr 19.6 21 May 40.6 21 Jun 89.8 21 Jul 96.7 21 Aug 69.2 21 Sep 48.2 21 Oct 27.4 21 Nov 19.2 21 Dec 25.7 21 Annual 496.0 NA Ann-NCDC 496.0 NA -------------------------- Element 08: Maximum 24-Hour Precipitation (mm) MAX_DLY (Statistic 11): Maximum Daily Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value -------------------------- byr: 1970 1970 eyr: 1990 1990 Statistic: MAX_DLY DATEMAX Month -------------------------- Jan 15.2 198878 Feb 7.9 197904 Mar 15.5 197223 Apr 17.1 197917 May 27.9 197320 Jun 82.4 198325 Jul 55.6 198806 Aug 71.0 199022 Sep 37.0 197808 Oct 25.2 198108 Nov 13.0 197120 Dec 17.8 197007 Annual 82.4 NA Ann-NCDC NA NA -------------------------- Element 08: Maximum 24-Hour Precipitation (mm) Qualifier: 11: Maximum Daily Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1970 eyr: 1990 Month ------------------ Jan 20 Feb 20 Mar 20 Apr 21 May 21 Jun 21 Jul 21 Aug 21 Sep 21 Oct 21 Nov 21 Dec 21 Annual NA Ann-NCDC NA ------------------ Element 09: Snowfall (cm) MEANDLY (Statistic 06): Mean Daily Value MAX_DLY (Statistic 11): Maximum Daily Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value MEANMLY (Statistic 15): Mean Monthly Value ------------------------------------------ byr: 1970 1970 1970 1970 eyr: 1990 1990 1990 1990 Statistic: MEANDLY MAX_DLY DATEMAX MEANMLY Month ------------------------------------------ Jan 9.2 18.8 197415 29.2 Feb 5.7 12.6 199011 21.2 Mar 9.0 25.9 197414 23.0 Apr 5.6 17.1 197917 11.1 May 2.5 16.5 198323 3.0 Jun 0.0 0.0 199030 0.0 Jul 0.0 0.0 199031 0.0 Aug 0.0 0.0 199031 0.0 Sep 1.6 10.9 197428 2.8 Oct 4.3 15.2 198418 10.0 Nov 5.9 15.2 197120 20.1 Dec 8.6 19.3 197610 29.9 Annual NA 25.9 NA 150.2 Ann-NCDC NA NA NA 150.3 ------------------------------------------ Element 09: Snowfall (cm) Statistic 98: Number of Years used to Calculate Normal Qualifier: 06: Mean Daily Value Qualifier: 15: Mean Monthly Value -------------------------- byr: 1970 1970 eyr: 1990 1990 Qualifier: 06 15 Month -------------------------- Jan 20 20 Feb 20 20 Mar 20 20 Apr 21 21 May 21 21 Jun 21 21 Jul 21 21 Aug 21 21 Sep 21 21 Oct 21 21 Nov 21 21 Dec 21 21 Annual NA NA Ann-NCDC NA NA -------------------------- Element 10: Snow Depth (cm) MNLSTDY (Statistic 51): Mean on Last Day of Month ------------------ byr: 1970 eyr: 1990 Month ------------------ Jan 31 Feb NA Mar NA Apr 1 May 0 Jun 0 Jul 0 Aug 0 Sep 1 Oct 1 Nov 9 Dec 20 Annual NA Ann-NCDC NA ------------------ Element 10: Snow Depth (cm) Qualifier: 51: Mean on Last Day of Month #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1970 eyr: 1990 Month ------------------ Jan 20 Feb 19 Mar 19 Apr 21 May 21 Jun 21 Jul 21 Aug 21 Sep 21 Oct 20 Nov 20 Dec 21 Annual NA Ann-NCDC NA ------------------ Element 39: Rainfall (mm) MEANDLY (Statistic 06): Mean Daily Value MAX_DLY (Statistic 11): Maximum Daily Value DATEMAX (Statistic 12): Date (Year/Day) of Occurrence of Maximum Daily Value MEANMLY (Statistic 15): Mean Monthly Value ------------------------------------------ byr: 1970 1970 1970 1970 eyr: 1990 1990 1990 1990 Statistic: MEANDLY MAX_DLY DATEMAX MEANMLY Month ------------------------------------------ Jan 0.6 3.4 198712 0.7 Feb 0.5 2.8 198401 0.7 Mar 1.0 6.0 198820 1.6 Apr 5.5 14.5 197527 9.8 May 12.4 27.9 197320 37.7 Jun 28.2 82.4 198325 89.8 Jul 27.2 55.6 198806 96.7 Aug 23.9 71.0 199022 69.2 Sep 16.6 37.0 197808 45.4 Oct 7.8 25.2 198108 17.7 Nov 1.9 9.5 197807 3.1 Dec 1.6 11.9 198016 2.2 Annual NA 82.4 NA 374.7 Ann-NCDC NA NA NA 374.6 ------------------------------------------ Element 39: Rainfall (mm) Statistic 98: Number of Years used to Calculate Normal Qualifier: 06: Mean Daily Value Qualifier: 15: Mean Monthly Value -------------------------- byr: 1970 1970 eyr: 1990 1990 Qualifier: 06 15 Month -------------------------- Jan 20 20 Feb 20 20 Mar 20 20 Apr 21 21 May 21 21 Jun 21 21 Jul 21 21 Aug 21 21 Sep 21 21 Oct 21 21 Nov 21 21 Dec 21 21 Annual NA NA Ann-NCDC NA NA -------------------------- Element 40: Bright Sunshine Statistic 44: Mean Number of Hours Qualifier: 06: Mean Daily Value Qualifier: 15: Mean Monthly Value -------------------------- byr: 1971 1971 eyr: 1991 1991 Qualifier: 06 15 Month -------------------------- Jan NA NA Feb NA NA Mar NA NA Apr NA NA May NA NA Jun NA NA Jul NA NA Aug NA NA Sep NA NA Oct NA NA Nov NA NA Dec 2.1 63.7 Annual NA NA Ann-NCDC 2.1 63.7 -------------------------- Element 40: Bright Sunshine %DAYLGT (Statistic 53): Percent of Daylight Hours ------------------ byr: 1971 eyr: 1991 Month ------------------ Jan NA Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov NA Dec 28 Annual NA Ann-NCDC NA ------------------ Element 40: Bright Sunshine Statistic 98: Number of Years used to Calculate Normal Qualifier: 15: Mean Monthly Value Qualifier: 44: Mean Number of Hours Qualifier: 53: Percent of Daylight Hours ---------------------------------- byr: 1971 1971 1971 eyr: 1991 1991 1991 Qualifier: 15 44 53 Month ---------------------------------- Jan 19 19 19 Feb 19 19 19 Mar 18 19 18 Apr 19 19 19 May 19 19 19 Jun 19 19 19 Jul 19 19 19 Aug 19 19 19 Sep 19 19 19 Oct 19 19 19 Nov 19 19 19 Dec 20 20 20 Annual NA NA NA Ann-NCDC NA NA NA ---------------------------------- Element 50: Number Days with Measurable Bright Sunshine (count) MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1971 eyr: 1991 Month ------------------ Jan NA Feb NA Mar NA Apr NA May NA Jun NA Jul NA Aug NA Sep NA Oct NA Nov NA Dec 21 Annual NA Ann-NCDC NA ------------------ Element 50: Number Days with Measurable Bright Sunshine (count) Qualifier: 15: Mean Monthly Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1971 eyr: 1991 Month ------------------ Jan 19 Feb 19 Mar 18 Apr 19 May 19 Jun 19 Jul 19 Aug 19 Sep 19 Oct 19 Nov 19 Dec 20 Annual NA Ann-NCDC NA ------------------ Element 54: Number Days with Rainfall GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 0.2 mm Qualifier: 5.0 mm Qualifier: 10.0 mm Qualifier: 25.0 mm ------------------------------------------ byr: 1970 1970 1970 1970 eyr: 1990 1990 1990 1990 Qualifier: 0.2 5.0 10.0 25.0 Month ------------------------------------------ Jan * 0 0 0 Feb * 0 0 0 Mar 1 * 0 0 Apr 4 * * 0 May 10 2 * * Jun 13 5 3 * Jul 15 6 3 * Aug 13 4 2 * Sep 11 3 1 * Oct 7 1 * * Nov 2 * 0 0 Dec 1 * * 0 Annual 79 22 11 2 Ann-NCDC 77.0 21.0 9.0 * ------------------------------------------ Element 54: Number Days with Rainfall GE Threshold (count) Statistic 98: Number of Years used to Calculate Normal Qualifier: 0.2 mm Qualifier: 5.0 mm Qualifier: 10.0 mm Qualifier: 25.0 mm ------------------------------------------ byr: 1970 1970 1970 1970 eyr: 1990 1990 1990 1990 Qualifier: 0.2 5.0 10.0 25.0 Month ------------------------------------------ Jan 20 20 20 20 Feb 20 20 20 20 Mar 20 20 20 20 Apr 21 21 21 21 May 21 21 21 21 Jun 21 21 21 21 Jul 21 21 21 21 Aug 21 21 21 21 Sep 21 21 21 21 Oct 21 21 21 21 Nov 21 21 21 21 Dec 21 21 21 21 Annual NA NA NA NA Ann-NCDC NA NA NA NA ------------------------------------------ Element 85: Number Days Minimum Temperature LE Threshold (count) Qualifier: 0.0 deg C MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1970 eyr: 1990 Month ------------------ Jan 31 Feb 28 Mar 31 Apr 24 May 7 Jun * Jul 0 Aug * Sep 6 Oct 20 Nov 29 Dec 31 Annual 206 Ann-NCDC 207.0 ------------------ Element 85: Number Days Minimum Temperature LE Threshold (count) Qualifier: 15: Mean Monthly Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1970 eyr: 1990 Month ------------------ Jan 20 Feb 20 Mar 20 Apr 21 May 21 Jun 21 Jul 21 Aug 21 Sep 21 Oct 21 Nov 20 Dec 21 Annual NA Ann-NCDC NA ------------------ Element 90: Number Days Maximum Temperature GT Threshold (count) Qualifier: 0.0 deg C MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1970 eyr: 1990 Month ------------------ Jan 6 Feb 9 Mar 19 Apr 28 May 31 Jun 30 Jul 31 Aug 31 Sep 30 Oct 29 Nov 13 Dec 6 Annual 263 Ann-NCDC 263.0 ------------------ Element 90: Number Days Maximum Temperature GT Threshold (count) Qualifier: 15: Mean Monthly Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1970 eyr: 1990 Month ------------------ Jan 20 Feb 20 Mar 20 Apr 20 May 21 Jun 21 Jul 21 Aug 21 Sep 21 Oct 21 Nov 20 Dec 21 Annual NA Ann-NCDC NA ------------------ Element 92: Number Days Minimum Temperature GT Threshold (count) Qualifier: 0.0 deg C MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1970 eyr: 1990 Month ------------------ Jan * Feb * Mar * Apr 6 May 24 Jun 30 Jul 31 Aug 31 Sep 24 Oct 11 Nov 1 Dec * Annual 159 Ann-NCDC 158.0 ------------------ Element 92: Number Days Minimum Temperature GT Threshold (count) Qualifier: 15: Mean Monthly Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1970 eyr: 1990 Month ------------------ Jan 20 Feb 20 Mar 20 Apr 21 May 21 Jun 21 Jul 21 Aug 21 Sep 21 Oct 21 Nov 20 Dec 21 Annual NA Ann-NCDC NA ------------------ Element 93: Number Days Minimum Temperature LT Threshold (count) Qualifier: -2.0 deg C MEANMLY (Statistic 15): Mean Monthly Value ------------------ byr: 1970 eyr: 1990 Month ------------------ Jan 30 Feb 28 Mar 28 Apr 16 May 2 Jun * Jul 0 Aug * Sep 2 Oct 13 Nov 27 Dec 30 Annual 177 Ann-NCDC 176.0 ------------------ Element 93: Number Days Minimum Temperature LT Threshold (count) Qualifier: 15: Mean Monthly Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal ------------------ byr: 1970 eyr: 1990 Month ------------------ Jan 20 Feb 20 Mar 20 Apr 21 May 21 Jun 21 Jul 21 Aug 21 Sep 21 Oct 21 Nov 20 Dec 21 Annual NA Ann-NCDC NA ------------------ Element 94: Number Days with Snowfall GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 0.2 cm Qualifier: 5.0 cm Qualifier: 10.0 cm Qualifier: 25.0 cm ------------------------------------------ byr: 1970 1970 1970 1970 eyr: 1990 1990 1990 1990 Qualifier: 0.2 5.0 10.0 25.0 Month ------------------------------------------ Jan 13 1 * 0 Feb 10 1 * 0 Mar 9 1 * * Apr 4 * * 0 May 1 * * 0 Jun 0 0 0 0 Jul 0 0 0 0 Aug 0 0 0 0 Sep * * * 0 Oct 5 * * 0 Nov 10 * * 0 Dec 13 2 * 0 Annual 66 8 2 * Ann-NCDC 65.0 5.0 * * ------------------------------------------ Element 94: Number Days with Snowfall GE Threshold (count) Statistic 98: Number of Years used to Calculate Normal Qualifier: 0.2 cm Qualifier: 5.0 cm Qualifier: 10.0 cm Qualifier: 25.0 cm ------------------------------------------ byr: 1970 1970 1970 1970 eyr: 1990 1990 1990 1990 Qualifier: 0.2 5.0 10.0 25.0 Month ------------------------------------------ Jan 20 20 20 20 Feb 20 20 20 20 Mar 20 20 20 20 Apr 21 21 21 21 May 21 21 21 21 Jun 21 21 21 21 Jul 21 21 21 21 Aug 21 21 21 21 Sep 21 21 21 21 Oct 21 21 21 21 Nov 21 21 21 21 Dec 21 21 21 21 Annual NA NA NA NA Ann-NCDC NA NA NA NA ------------------------------------------ Element 95: Number Days with Precipitation GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 0.2 mm Qualifier: 5.0 mm Qualifier: 10.0 mm Qualifier: 25.0 mm ------------------------------------------ byr: 1970 1970 1970 1970 eyr: 1990 1990 1990 1990 Qualifier: 0.2 5.0 10.0 25.0 Month ------------------------------------------ Jan 12 1 * 0 Feb 10 * 0 0 Mar 10 * * 0 Apr 6 1 * 0 May 10 3 1 * Jun 13 5 3 * Jul 15 6 3 * Aug 13 4 2 * Sep 12 3 1 * Oct 10 2 * * Nov 11 * * 0 Dec 13 1 * 0 Annual 135 29 12 2 Ann-NCDC 135.0 26.0 10.0 * ------------------------------------------ Element 95: Number Days with Precipitation GE Threshold (count) Statistic 98: Number of Years used to Calculate Normal Qualifier: 0.2 mm Qualifier: 5.0 mm Qualifier: 10.0 mm Qualifier: 25.0 mm ------------------------------------------ byr: 1970 1970 1970 1970 eyr: 1990 1990 1990 1990 Qualifier: 0.2 5.0 10.0 25.0 Month ------------------------------------------ Jan 20 20 20 20 Feb 20 20 20 20 Mar 20 20 20 20 Apr 21 21 21 21 May 21 21 21 21 Jun 21 21 21 21 Jul 21 21 21 21 Aug 21 21 21 21 Sep 21 21 21 21 Oct 21 21 21 21 Nov 21 21 21 21 Dec 21 21 21 21 Annual NA NA NA NA Ann-NCDC NA NA NA NA ------------------------------------------ Element 96: Number Days with Snow Cover GE Threshold (count) Statistic 15: Mean Monthly Value Qualifier: 1.0 cm Qualifier: 5.0 cm Qualifier: 10.0 cm Qualifier: 20.0 cm Qualifier: 50.0 cm Qualifier: 100.0 cm ---------------------------------------------------------- byr: 1971 1971 1971 1971 1971 1971 eyr: 1990 1990 1990 1990 1990 1990 Qualifier: 1.0 5.0 10.0 20.0 50.0 100.0 Month ---------------------------------------------------------- Jan NA NA NA NA NA NA Feb NA NA NA NA NA NA Mar NA NA NA NA NA NA Apr NA NA NA NA NA NA May NA NA NA NA NA NA Jun NA NA NA NA NA NA Jul NA NA NA NA NA NA Aug NA NA NA NA NA NA Sep NA NA NA NA NA NA Oct NA NA NA NA NA NA Nov NA NA NA NA NA NA Dec 29 27 21 8 * 0 Annual NA NA NA NA NA NA Ann-NCDC NA NA NA NA NA NA ---------------------------------------------------------- Element 96: Number Days with Snow Cover GE Threshold (count) Statistic 98: Number of Years used to Calculate Normal Qualifier: 1.0 cm Qualifier: 5.0 cm Qualifier: 10.0 cm Qualifier: 20.0 cm Qualifier: 50.0 cm Qualifier: 100.0 cm ---------------------------------------------------------- byr: 1971 1971 1971 1971 1971 1971 eyr: 1990 1990 1990 1990 1990 1990 Qualifier: 1.0 5.0 10.0 20.0 50.0 100.0 Month ---------------------------------------------------------- Jan 19 19 19 19 19 19 Feb 19 19 19 19 19 19 Mar 19 19 19 19 19 19 Apr 19 19 19 19 19 19 May 19 19 19 19 19 19 Jun 19 19 19 19 19 19 Jul 19 19 19 19 19 19 Aug 19 19 19 19 19 19 Sep 19 19 19 19 19 19 Oct 19 19 19 19 19 19 Nov 19 19 19 19 19 19 Dec 20 20 20 20 20 20 Annual NA NA NA NA NA NA Ann-NCDC NA NA NA NA NA NA ----------------------------------------------------------