Station Name: LIBBY 1NE RS, MT WMO Station Number: National I.D. Number: 00245015 Country: UNITED STATES OF AMERICA WMO Region: REGION IV - NORTH & CENTRAL AMERICA Latitude: 48d 24m N Longitude: 115d 32m W Elevation: 652 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 #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN #_YEARS Month -------------------------- Jan -4.1 30 Feb -.2 30 Mar 3.4 30 Apr 7.9 30 May 12.4 30 Jun 16.5 30 Jul 19.4 30 Aug 19.2 30 Sep 13.9 30 Oct 7.8 30 Nov 1.4 30 Dec -3.3 30 Annual 7.9 30 Ann-NCDC 7.9 NA -------------------------- Element 02: Maximum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN #_YEARS Month -------------------------- Jan .1 30 Feb 5.2 30 Mar 10.4 30 Apr 16.6 30 May 21.8 30 Jun 26.3 30 Jul 30.7 30 Aug 30.6 30 Sep 23.9 30 Oct 15.1 30 Nov 5.3 30 Dec .1 30 Annual 15.5 30 Ann-NCDC 15.5 NA -------------------------- Element 03: Minimum Dry Bulb Temperature (deg C) MEAN (Statistic 01): Mean Value #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------- byr: 1961 1961 eyr: 1990 1990 Statistic: MEAN #_YEARS Month -------------------------- Jan -8.3 30 Feb -5.6 30 Mar -3.6 30 Apr -.7 30 May 2.9 30 Jun 6.7 30 Jul 8.1 30 Aug 7.8 30 Sep 3.9 30 Oct .4 30 Nov -2.7 30 Dec -6.7 30 Annual .2 30 Ann-NCDC 0.2 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 #_YEARS (Statistic 98): Number of Years used to Calculate Normal -------------------------------------------------------------------------- byr: 1961 1961 1961 1961 1961 1961 1961 1961 eyr: 1990 1990 1990 1990 1990 1990 1990 1990 Statistic: MEANMLY MIN_MLY QUIN20% QUIN40% QUIN60% QUIN80% MAX_MLY #_YEARS Month -------------------------------------------------------------------------- Jan 55.4 5.3 23.6 38.9 56.1 82.0 125.5 30 Feb 36.8 9.1 17.0 26.9 37.8 54.1 86.9 30 Mar 31.2 7.1 17.5 24.9 32.5 43.2 58.2 30 Apr 27.2 7.1 14.0 20.8 28.2 38.6 66.0 30 May 40.6 12.7 21.3 31.5 42.2 57.4 87.6 30 Jun 41.1 4.6 17.0 28.2 41.4 61.5 109.2 30 Jul 27.7 0.0 6.6 15.0 26.2 44.7 118.6 30 Aug 26.2 0.0 8.9 16.8 26.2 40.4 82.8 30 Sep 29.5 0.0 9.9 18.8 29.5 46.0 93.0 30 Oct 33.8 0.0 11.7 21.8 33.8 52.1 90.4 30 Nov 60.7 7.6 30.5 45.7 62.7 87.1 145.3 30 Dec 58.4 11.4 32.0 46.0 61.0 81.8 127.8 30 Annual 468.6 NA NA NA NA NA NA 30 Ann-NCDC 468.6 NA NA NA NA NA NA NA --------------------------------------------------------------------------