Station Name: WATERTOWN FAA AP, SD WMO Station Number: National I.D. Number: 00398932 Country: UNITED STATES OF AMERICA WMO Region: REGION IV - NORTH & CENTRAL AMERICA Latitude: 44d 55m N Longitude: 097d 09m W Elevation: 532 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 -11.7 30 Feb -8.4 30 Mar -1.3 30 Apr 7.1 30 May 13.9 30 Jun 19.3 30 Jul 22.5 30 Aug 21.3 30 Sep 15.3 30 Oct 8.7 30 Nov -.7 30 Dec -8.7 30 Annual 6.4 30 Ann-NCDC 6.4 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 -5.9 30 Feb -2.9 30 Mar 4.2 30 Apr 13.6 30 May 20.7 30 Jun 26.0 30 Jul 29.4 30 Aug 28.3 30 Sep 22.1 30 Oct 15.1 30 Nov 4.5 30 Dec -3.5 30 Annual 12.6 30 Ann-NCDC 12.6 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 -17.5 30 Feb -13.9 30 Mar -6.9 30 Apr .6 30 May 7.2 30 Jun 12.7 30 Jul 15.6 30 Aug 14.2 30 Sep 8.6 30 Oct 2.2 30 Nov -5.8 30 Dec -13.9 30 Annual .3 30 Ann-NCDC 0.3 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 13.7 0.5 3.8 7.6 13.0 21.6 53.6 30 Feb 14.7 0.3 4.1 8.4 14.0 23.1 47.2 30 Mar 35.8 3.8 15.0 24.9 36.3 53.3 100.1 30 Apr 55.4 10.9 26.9 41.1 56.9 80.0 138.4 30 May 77.0 10.4 31.8 52.8 77.7 115.3 222.3 30 Jun 89.7 16.5 41.4 65.0 91.9 131.3 210.8 30 Jul 77.5 13.0 34.5 55.4 79.2 114.3 263.1 30 Aug 69.1 15.7 34.0 51.6 71.1 99.6 133.1 30 Sep 50.0 5.6 18.8 33.0 50.0 76.2 143.8 30 Oct 47.5 0.8 11.9 25.7 44.4 75.7 205.7 30 Nov 21.6 0.5 4.8 11.2 19.8 34.5 79.0 30 Dec 12.7 0.0 3.6 7.4 12.4 20.1 61.0 30 Annual 564.7 NA NA NA NA NA NA 30 Ann-NCDC 564.7 NA NA NA NA NA NA NA --------------------------------------------------------------------------