COULEE DAM 1 SW, ta

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(451767)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1934 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 104.00 h 99.00 87.00 a 63.00 b 50.00 k 104.00
1935 52.00 a 58.00 62.00 l ----- z ----- z 94.00 i 108.00 102.00 100.00 90.00 53.00 a 45.00 108.00
1936 49.00 52.00 67.00 a 92.00 99.00 a 102.00 b 108.00 102.00 j 90.00 c 86.00 56.00 58.00 108.00
1937 30.00 a 44.00 65.00 74.00 90.00 99.00 106.00 a 99.00 a 98.00 a 76.00 a 61.00 d 54.00 e 106.00
1938 47.00 a 47.00 61.00 a 82.00 94.00 105.00 109.00 a 103.00 104.00 82.00 a 57.00 49.00 d 109.00
1939 51.00 48.00 74.00 87.00 a 96.00 101.00 113.00 106.00 96.00 81.00 60.00 a 58.00 113.00
1940 42.00 58.00 72.00 a 75.00 95.00 100.00 104.00 100.00 99.00 80.00 55.00 52.00 104.00
1941 45.00 52.00 74.00 84.00 92.00 94.00 109.00 100.00 83.00 74.00 62.00 58.00 109.00
1942 49.00 49.00 74.00 84.00 83.00 86.00 96.00 103.00 a 91.00 82.00 55.00 a 45.00 103.00
1943 47.00 ----- z 60.00 80.00 81.00 90.00 99.00 94.00 94.00 83.00 57.00 52.00 99.00
1944 46.00 49.00 69.00 82.00 89.00 99.00 102.00 94.00 97.00 78.00 54.00 52.00 102.00
1945 54.00 54.00 69.00 76.00 89.00 99.00 103.00 105.00 91.00 81.00 a 61.00 56.00 105.00
1946 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1947 49.00 60.00 72.00 86.00 92.00 90.00 100.00 95.00 87.00 79.00 53.00 45.00 100.00
1948 ----- z ----- z ----- z ----- z ----- z 94.00 91.00 90.00 92.00 69.00 53.00 53.00 94.00
1949 38.00 56.00 60.00 78.00 91.00 95.00 99.00 98.00 95.00 a 67.00 61.00 48.00 99.00
1950 43.00 46.00 56.00 72.00 f 80.00 92.00 99.00 ----- z 96.00 68.00 52.00 48.00 99.00
1951 46.00 53.00 57.00 74.00 88.00 89.00 100.00 97.00 a 88.00 73.00 53.00 51.00 100.00
1952 40.00 49.00 64.00 84.00 86.00 91.00 99.00 98.00 a 94.00 83.00 54.00 45.00 99.00
1953 53.00 53.00 63.00 72.00 82.00 83.00 96.00 99.00 92.00 75.00 62.00 48.00 99.00
1954 51.00 55.00 60.00 74.00 89.00 84.00 95.00 95.00 85.00 69.00 57.00 47.00 95.00
1955 39.00 45.00 52.00 67.00 78.00 97.00 102.00 95.00 96.00 67.00 59.00 43.00 102.00
1956 45.00 44.00 57.00 81.00 91.00 86.00 101.00 99.00 88.00 76.00 52.00 53.00 a 101.00
1957 35.00 56.00 58.00 84.00 88.00 91.00 93.00 92.00 91.00 72.00 54.00 50.00 a 93.00
1958 49.00 58.00 60.00 72.00 95.00 100.00 100.00 99.00 93.00 81.00 58.00 53.00 100.00
1959 50.00 45.00 59.00 71.00 85.00 90.00 102.00 98.00 89.00 67.00 61.00 54.00 102.00
1960 45.00 47.00 71.00 76.00 82.00 90.00 108.00 100.00 91.00 77.00 58.00 44.00 108.00
1961 50.00 57.00 65.00 69.00 88.00 100.00 101.00 110.00 84.00 77.00 52.00 47.00 110.00
1962 45.00 54.00 66.00 80.00 76.00 94.00 101.00 96.00 90.00 77.00 58.00 46.00 101.00
1963 46.00 55.00 63.00 69.00 87.00 97.00 93.00 97.00 94.00 81.00 55.00 43.00 97.00
1964 43.00 48.00 68.00 67.00 83.00 89.00 101.00 92.00 85.00 75.00 55.00 42.00 101.00
1965 44.00 47.00 61.00 76.00 86.00 90.00 100.00 100.00 84.00 78.00 63.00 47.00 100.00
1966 43.00 49.00 72.00 73.00 93.00 88.00 96.00 103.00 93.00 75.00 59.00 48.00 103.00
1967 53.00 57.00 56.00 64.00 85.00 95.00 100.00 103.00 93.00 74.00 54.00 47.00 103.00
1968 48.00 58.00 66.00 82.00 84.00 94.00 105.00 98.00 88.00 71.00 53.00 54.00 105.00
1969 42.00 41.00 67.00 77.00 87.00 98.00 98.00 99.00 92.00 66.00 a 56.00 48.00 99.00
1970 48.00 49.00 58.00 62.00 85.00 97.00 98.00 100.00 92.00 80.00 53.00 47.00 100.00
1971 57.00 53.00 59.00 70.00 86.00 92.00 100.00 104.00 83.00 78.00 52.00 44.00 104.00
1972 48.00 60.00 68.00 74.00 90.00 91.00 96.00 103.00 87.00 75.00 51.00 55.00 103.00
1973 45.00 52.00 62.00 73.00 94.00 102.00 99.00 97.00 94.00 69.00 53.00 48.00 102.00
1974 49.00 50.00 62.00 70.00 77.00 97.00 100.00 98.00 94.00 74.00 54.00 50.00 c 100.00
1975 44.00 45.00 52.00 73.00 83.00 87.00 105.00 92.00 88.00 80.00 68.00 55.00 105.00
1976 50.00 50.00 62.00 71.00 82.00 92.00 96.00 90.00 93.00 82.00 57.00 45.00 96.00
1977 42.00 59.00 63.00 91.00 81.00 94.00 96.00 103.00 83.00 69.00 60.00 50.00 103.00
1978 42.00 47.00 66.00 72.00 80.00 b 94.00 a 97.00 a 100.00 85.00 a 72.00 57.00 43.00 h 100.00
1979 35.00 52.00 68.00 77.00 86.00 96.00 105.00 96.00 90.00 80.00 55.00 49.00 a 105.00
1980 45.00 47.00 a 60.00 81.00 86.00 a 87.00 100.00 92.00 88.00 83.00 a 60.00 58.00 100.00
1981 61.00 59.00 65.00 85.00 82.00 88.00 96.00 101.00 95.00 68.00 62.00 48.00 101.00
1982 45.00 59.00 62.00 74.00 84.00 96.00 100.00 97.00 88.00 70.00 52.00 53.00 100.00
1983 50.00 54.00 59.00 73.00 97.00 86.00 i 97.00 97.00 85.00 69.00 59.00 43.00 97.00
1984 48.00 49.00 66.00 74.00 86.00 89.00 103.00 99.00 89.00 79.00 56.00 40.00 103.00
1985 37.00 47.00 57.00 77.00 90.00 96.00 107.00 92.00 86.00 71.00 59.00 40.00 107.00
1986 44.00 55.00 66.00 74.00 100.00 100.00 96.00 100.00 85.00 73.00 55.00 42.00 100.00
1987 44.00 50.00 67.00 85.00 95.00 98.00 ----- z ----- z 98.00 a 82.00 57.00 53.00 98.00
1988 43.00 60.00 61.00 82.00 89.00 94.00 98.00 102.00 103.00 a 84.00 61.00 46.00 103.00
1989 51.00 43.00 57.00 74.00 80.00 92.00 96.00 100.00 85.00 74.00 69.00 42.00 100.00
1990 51.00 57.00 68.00 73.00 85.00 89.00 101.00 99.00 91.00 72.00 64.00 51.00 101.00
1991 44.00 56.00 69.00 76.00 74.00 83.00 97.00 97.00 89.00 81.00 54.00 49.00 97.00
1992 52.00 54.00 71.00 76.00 90.00 102.00 99.00 99.00 85.00 83.00 52.00 39.00 102.00
1993 40.00 42.00 58.00 66.00 ----- z 88.00 89.00 92.00 90.00 81.00 58.00 49.00 92.00
1994 46.00 50.00 73.00 80.00 86.00 93.00 104.00 99.00 88.00 74.00 48.00 52.00 104.00
1995 46.00 61.00 67.00 70.00 87.00 88.00 97.00 93.00 93.00 67.00 61.00 50.00 97.00
1996 46.00 49.00 61.00 76.00 77.00 88.00 100.00 99.00 91.00 76.00 52.00 42.00 100.00
1997 46.00 46.00 64.00 67.00 85.00 87.00 92.00 99.00 91.00 71.00 58.00 48.00 99.00
1998 ----- z 52.00 65.00 83.00 85.00 ----- z 103.00 104.00 97.00 79.00 59.00 50.00 104.00
1999 52.00 51.00 70.00 76.00 89.00 94.00 98.00 99.00 86.00 71.00 62.00 50.00 99.00
2000 43.00 51.00 62.00 73.00 80.00 ----- z 100.00 100.00 90.00 71.00 53.00 36.00 100.00
2001 43.00 42.00 64.00 77.00 94.00 91.00 98.00 100.00 90.00 75.00 59.00 46.00 100.00
2002 51.00 56.00 60.00 70.00 77.00 96.00 103.00 98.00 89.00 75.00 54.00 53.00 103.00
2003 53.00 53.00 65.00 73.00 89.00 94.00 104.00 102.00 97.00 84.00 61.00 ----- z 104.00
2004 ----- z ----- z ----- z 80.00 d 81.00 100.00 102.00 104.00 91.00 79.00 58.00 54.00 104.00
2005 50.00 57.00 66.00 80.00 93.00 100.00 ----- z 99.00 88.00 74.00 ----- z 44.00 100.00
2006 50.00 52.00 62.00 76.00 92.00 98.00 107.00 97.00 95.00 77.00 63.00 47.00 107.00
2007 46.00 51.00 66.00 71.00 86.00 ----- z 101.00 96.00 86.00 75.00 58.00 58.00 101.00
2008 43.00 51.00 54.00 72.00 92.00 100.00 98.00 104.00 88.00 84.00 57.00 45.00 104.00
2009 46.00 47.00 59.00 79.00 91.00 88.00 97.00 103.00 93.00 64.00 55.00 40.00 103.00
2010 47.00 51.00 63.00 74.00 80.00 84.00 98.00 94.00 83.00 81.00 60.00 42.00 98.00
2011 50.00 53.00 65.00 65.00 77.00 87.00 91.00 95.00 95.00 76.00 56.00 51.00 95.00
2012 45.00 49.00 62.00 83.00 88.00 84.00 98.00 97.00 87.00 a 76.00 a 61.00 51.00 98.00
2013 44.00 46.00 69.00 71.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 71.00
Period of Record Statistics
MEAN 46.28 51.48 63.75 75.95 86.69 93.17 99.99 98.53 90.85 76.09 57.13 48.51 101.53
S.D. 5.04 4.99 5.22 6.19 5.77 5.38 4.55 3.95 4.79 5.63 4.02 5.01 3.68
SKEW -0.29 -0.01 0.01 0.26 0.02 0.03 0.28 0.01 0.42 0.00 0.44 -0.05 0.53
MAX 61.00 61.00 74.00 92.00 100.00 105.00 113.00 110.00 104.00 90.00 69.00 58.00 113.00
MIN 30.00 41.00 52.00 62.00 74.00 83.00 89.00 90.00 83.00 64.00 48.00 36.00 93.00
NO YRS 75 75 75 74 74 72 75 74 78 78 77 75 60