MUD MTN DAM, WASHINGTON

Monthly Total Cooling Degree Days

(455704)

Base Temperature = 65 F

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.
Months with 5 missing days or less use mean for missing day(s)
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
1939 0.00 k 0.00 0.00 2.00 7.00 0.00 a 49.50 50.50 5.00 0.00 0.00 0.00 114.00
1940 0.00 0.00 0.00 0.00 1.11 c 11.00 4.50 25.50 12.50 0.00 0.00 0.00 54.61
1941 0.00 0.00 0.00 0.00 3.00 5.50 83.00 30.50 0.00 0.00 0.00 0.00 a 122.00
1942 0.00 a 0.00 0.00 0.00 0.00 25.50 72.00 51.00 3.00 0.00 0.00 0.00 151.50
1943 0.00 0.00 0.00 0.00 0.00 0.50 16.00 2.50 15.50 0.00 0.00 0.00 34.50
1944 0.00 0.00 0.00 0.00 1.00 4.50 30.50 15.50 35.00 0.00 0.00 0.00 86.50
1945 0.00 0.00 0.00 0.00 2.00 5.50 44.00 20.00 2.00 0.00 0.00 0.00 73.50
1946 0.00 0.00 0.00 0.00 b 11.00 0.00 23.00 28.00 4.44 c 0.00 c 0.00 0.00 66.44
1947 0.00 0.00 0.00 0.00 11.50 0.00 6.00 2.50 13.00 0.00 0.00 0.00 33.00
1948 0.00 0.00 0.00 0.00 0.00 a 26.00 10.00 6.00 3.00 0.00 0.00 0.00 45.00
1949 0.00 0.00 0.00 0.00 0.00 2.00 13.50 6.50 g 5.50 0.00 0.00 0.00 21.00
1950 0.00 0.00 0.00 0.00 0.00 5.00 c 20.00 43.50 13.50 0.00 a 0.00 a 0.00 82.00
1951 0.00 0.00 0.00 a 0.00 0.00 16.00 32.50 13.50 27.41 a 6.00 0.00 0.00 a 95.41
1952 0.00 0.00 0.00 0.00 0.00 0.00 42.37 a 47.50 28.50 5.50 0.00 0.00 123.87
1953 0.00 0.00 0.00 0.00 10.50 0.00 24.28 a 16.00 19.00 0.00 0.00 0.00 69.78
1954 0.00 0.00 0.00 0.00 a 0.00 1.50 2.67 b 0.00 0.00 1.00 0.00 0.00 5.17
1955 0.00 0.00 0.00 0.00 0.00 12.50 4.50 9.76 d 10.00 0.00 0.00 0.00 36.76
1956 0.00 0.00 0.00 0.00 21.50 2.50 64.50 25.12 b 6.50 0.00 0.00 0.00 120.12
1957 0.00 0.00 0.00 0.00 0.00 0.00 4.50 0.00 13.50 0.00 0.00 0.00 18.00
1958 0.00 0.00 0.00 0.00 21.50 41.00 116.00 52.00 11.50 0.00 0.00 0.00 242.00
1959 0.00 0.00 0.00 0.00 3.50 7.00 63.50 14.00 0.00 0.00 0.00 0.00 88.00
1960 0.00 0.00 0.00 0.00 0.00 0.00 66.00 35.50 8.50 0.00 0.00 0.00 110.00
1961 0.00 0.00 0.00 0.00 0.00 36.50 50.00 70.00 3.00 1.50 0.00 0.00 161.00
1962 0.00 0.00 0.00 0.00 0.00 0.50 30.50 3.00 3.00 0.00 0.00 0.00 37.00
1963 0.00 0.00 0.00 0.00 19.50 4.00 0.00 4.50 16.50 0.00 0.00 0.00 44.50
1964 0.00 0.00 0.00 0.00 1.00 3.00 9.50 8.50 0.00 1.00 0.00 0.00 23.00
1965 0.00 0.00 0.00 0.00 0.00 0.00 53.00 39.00 0.00 0.00 0.00 0.00 92.00
1966 0.00 0.00 0.00 0.00 0.00 8.50 3.50 10.50 5.00 0.00 0.00 0.00 27.50
1967 0.00 0.00 0.00 0.00 0.00 22.50 14.00 116.50 25.00 0.00 0.00 0.00 178.00
1968 0.00 0.00 0.00 0.00 0.00 7.50 50.50 23.00 9.00 0.00 0.00 0.00 90.00
1969 0.00 0.00 0.00 0.00 11.00 30.50 10.50 3.00 7.50 0.00 0.00 0.00 62.50
1970 0.00 0.00 0.00 0.00 0.00 42.50 34.50 12.00 9.00 0.00 0.00 0.00 98.00
1971 0.00 0.00 0.00 0.00 3.50 1.50 77.00 62.00 0.00 0.00 0.00 0.00 144.00
1972 0.00 0.00 0.00 0.00 19.00 0.00 37.00 47.00 8.00 0.00 0.00 0.00 111.00
1973 0.00 0.00 0.00 0.00 15.50 15.00 38.50 7.50 12.00 0.00 0.00 0.00 88.50
1974 0.00 0.00 0.00 0.00 0.00 7.00 29.50 52.00 39.00 0.00 0.00 0.00 127.50
1975 0.00 0.00 0.00 0.00 0.00 6.00 39.00 2.00 26.50 1.50 0.00 0.00 75.00
1976 0.00 0.00 0.00 0.00 0.00 3.50 12.00 0.00 5.00 0.00 0.00 0.00 20.50
1977 0.00 0.00 0.00 0.00 0.00 6.00 9.50 126.00 0.00 0.00 0.00 0.00 141.50
1978 0.00 0.00 0.00 0.00 2.50 42.50 48.00 36.50 0.00 0.00 0.00 0.00 129.50
1979 0.00 0.00 0.00 0.00 0.50 6.00 54.00 8.00 11.50 0.00 0.00 0.00 80.00
1980 0.00 0.00 0.00 0.00 a 0.00 0.00 20.00 13.90 b 0.00 3.50 0.00 0.00 37.40
1981 0.00 0.00 0.00 0.00 0.00 0.50 27.50 98.00 19.00 0.00 0.00 c 0.00 145.00
1982 0.00 a 0.00 0.00 0.00 0.00 38.50 17.00 35.50 5.50 0.00 0.00 0.00 z 96.50
1983 0.00 0.00 0.00 0.00 25.50 0.00 6.50 5.00 1.00 0.00 0.00 0.00 38.00
1984 0.00 0.00 0.00 0.00 0.00 0.00 30.50 16.00 0.00 0.00 0.00 0.00 46.50
1985 0.00 0.00 0.00 0.00 5.50 16.00 95.00 29.50 0.00 0.00 0.00 0.00 146.00
1986 0.00 0.00 0.00 0.00 10.50 21.50 1.00 76.50 10.00 0.00 0.00 0.00 119.50
1987 0.00 0.00 0.00 3.00 8.50 23.00 16.50 37.50 30.00 8.50 0.00 0.00 127.00
1988 0.00 0.00 0.00 0.00 8.50 8.00 45.50 31.00 26.00 0.00 0.00 0.00 119.00
1989 0.00 0.00 0.00 0.00 0.00 29.50 5.00 10.50 27.00 0.00 0.00 0.00 72.00
1990 0.00 0.00 0.00 0.00 0.00 8.00 88.50 70.00 8.00 0.00 0.00 0.00 174.50
1991 0.00 0.00 0.00 0.00 0.00 0.00 36.00 57.50 19.00 2.50 0.00 0.00 a 115.00
1992 0.00 0.00 0.00 0.00 7.00 40.00 40.50 55.50 4.50 1.50 0.00 0.00 149.00
1993 0.00 0.00 0.00 0.00 6.00 1.50 0.00 39.50 22.00 1.50 0.00 0.00 70.50
1994 0.00 0.00 0.00 0.00 0.00 0.00 63.50 18.00 7.00 0.00 0.00 0.00 88.50
1995 0.00 0.00 0.00 0.00 2.50 24.50 55.50 6.00 18.00 0.00 0.00 0.00 106.50
1996 0.00 0.00 0.00 0.00 0.00 3.50 101.00 48.50 1.00 3.00 0.00 0.00 157.00
1997 0.00 0.00 0.00 0.00 5.00 0.00 19.00 62.00 13.50 0.00 0.00 0.00 99.50
1998 0.00 0.00 0.00 1.00 5.00 1.50 80.00 52.00 15.50 0.00 0.00 0.00 155.00
1999 0.00 0.00 0.00 0.00 0.00 9.00 7.00 2.14 b 0.50 0.00 0.00 a 0.00 b 18.64
2000 0.00 a 0.00 0.00 0.00 z 0.00 10.00 2.00 1.50 3.00 0.00 0.00 0.00 16.50
2001 0.00 0.00 0.00 0.00 3.50 0.00 0.00 8.50 0.00 0.00 0.00 0.00 12.00
2002 0.00 0.00 0.00 0.00 0.00 0.00 20.50 26.00 0.50 0.00 0.00 0.00 47.00
2003 0.00 0.00 0.00 0.00 0.00 39.00 66.00 24.00 39.50 1.00 0.00 a 0.00 169.50
2004 0.00 0.00 0.00 0.00 0.00 7.00 26.00 14.00 0.00 0.00 0.00 0.00 47.00
2005 0.00 0.00 0.00 0.00 1.00 0.00 1.50 4.00 0.00 0.00 0.00 0.00 6.50
2006 0.00 0.00 0.00 0.00 3.50 32.00 95.00 35.00 23.00 0.00 0.00 0.00 188.50
2007 0.00 0.00 0.00 0.00 0.50 3.50 59.00 24.50 10.50 0.00 0.00 0.00 98.00
2008 0.00 0.00 0.00 0.00 12.00 24.00 11.50 32.00 0.00 0.00 0.00 0.00 79.50
2009 0.00 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 68.00 81.00 1.00 0.00 0.00 150.00
2010 0.00 0.00 0.00 0.00 0.00 0.00 35.50 52.50 1.50 0.00 0.00 0.00 a 89.50
2011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 36.50 40.50 0.00 0.00 0.00 77.00
2012 0.00 0.00 0.00 0.00 0.00 0.00 2.50 41.50 4.50 0.00 0.00 0.00 48.50
2013 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.08 3.71 10.27 33.81 30.85 11.47 0.53 0.00 0.00 90.39
S.D. 0.00 0.00 0.00 0.43 6.16 13.05 28.87 27.04 13.59 1.47 0.00 0.00 50.75
SKEW 0.00 0.00 0.00 5.62 1.88 1.25 0.82 1.26 2.27 3.62 0.00 0.00 0.41
MAX 0.00 0.00 0.00 3.00 25.50 42.50 116.00 126.00 81.00 8.50 0.00 0.00 242.00
MIN 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5.17
NO YRS 74 75 75 73 73 73 73 73 74 74 74 73 69