PLAIN, WASHINGTON

Monthly Total Cooling Degree Days

(456534)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1937 0.00 z 0.00 z 0.00 z 0.00 i 0.00 9.00 94.00 12.50 0.00 0.00 0.00 0.00 115.50
1938 0.00 0.00 0.00 z 0.00 o 0.00 34.00 125.00 2.50 25.50 0.00 0.00 0.00 187.00
1939 0.00 0.00 0.00 0.00 0.00 e 5.50 78.00 56.50 4.00 0.00 0.00 0.00 144.00
1940 0.00 0.00 0.00 0.00 0.00 12.50 45.50 24.50 13.00 0.00 0.00 0.00 z 95.50
1941 0.00 z 0.00 b 0.00 0.00 0.50 3.50 136.00 86.50 0.00 0.00 0.00 0.00 226.50
1942 0.00 0.00 0.00 0.00 0.00 9.00 104.50 117.50 4.50 0.00 0.00 0.00 235.50
1943 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 55.50 16.50 0.00 0.00 0.00 0.00 72.00
1944 0.00 0.00 a 0.00 0.00 0.00 4.50 98.50 6.00 4.50 0.00 a 0.00 0.00 113.50
1945 0.00 0.00 0.00 0.00 0.00 18.50 66.00 42.50 0.00 0.00 0.00 0.00 l 127.00
1946 0.00 0.00 a 0.00 0.00 0.00 0.50 31.00 38.00 2.00 0.00 0.00 0.00 i 71.50
1947 0.00 z 0.00 0.00 0.00 1.00 h 0.00 z 0.00 z 12.00 0.00 0.00 0.00 0.00 b 12.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 14.50 7.50 0.00 0.00 0.00 0.00 22.00
1949 0.00 0.00 c 0.00 0.00 1.00 2.00 44.00 25.00 2.00 0.00 0.00 0.00 74.00
1950 0.00 0.00 0.00 0.00 0.00 c 7.50 54.50 36.50 2.50 0.00 0.00 p 0.00 101.00
1951 0.00 0.00 0.00 0.00 z 0.00 z 3.00 53.50 43.00 0.00 0.00 0.00 z 0.00 z 99.50
1952 0.00 a 0.00 0.00 0.00 0.00 c 2.00 66.50 66.50 5.00 0.00 0.00 0.00 140.00
1953 0.00 0.00 o 0.00 f 0.00 0.00 0.00 33.77 c 31.00 1.50 0.00 0.00 0.00 66.27
1954 0.00 0.00 0.00 a 0.00 a 0.00 a 1.00 14.93 d 6.00 0.00 0.00 0.00 0.00 21.93
1955 0.00 0.00 0.00 0.00 0.00 a 11.50 63.00 21.50 19.14 a 0.00 0.00 0.00 115.14
1956 0.00 0.00 a 0.00 m 0.00 c 6.64 c 0.00 122.50 69.00 0.00 0.00 0.00 0.00 198.14
1957 0.00 0.00 0.00 g 0.00 m 9.50 22.50 24.69 d 6.50 2.00 0.00 0.00 b 0.00 h 65.19
1958 0.00 0.00 0.00 0.00 35.00 77.00 174.00 0.00 z 0.00 z 0.00 z 0.00 0.00 286.00
1959 0.00 0.00 0.00 0.00 a 0.00 16.50 105.50 19.00 0.00 a 0.00 0.00 a 0.00 g 141.00
1960 0.00 j 0.00 b 0.00 i 0.00 z 1.66 c 0.00 z 126.00 0.00 z 3.00 0.00 0.00 a 0.00 d 130.66
1961 0.00 b 0.00 d 0.00 c 0.00 k 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
1962 0.00 c 0.00 c 0.00 f 0.00 b 0.00 a 0.50 l 69.75 c 0.00 z 0.54 b 0.00 z 0.00 b 0.00 d 70.29
1963 0.00 c 0.00 e 0.00 a 0.00 i 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 l 0.00 k 0.00
1964 0.00 a 0.00 a 0.00 f 0.00 b 0.00 b 1.15 d 55.50 g 18.08 a 0.00 h 0.00 d 0.00 b 0.00 g 19.24
1965 0.00 0.00 b 0.00 a 0.00 b 0.00 d 2.78 c 97.13 a 82.27 e 0.00 c 0.00 b 0.00 a 0.00 p 182.18
1966 0.00 l 0.00 c 0.00 c 0.00 2.58 a 5.17 a 17.00 f 64.30 d 16.61 b 0.00 0.00 a 0.00 c 88.66
1967 0.00 c 0.00 b 0.00 a 0.00 1.00 26.38 a 63.11 c 159.98 c 28.00 i 0.00 h 0.00 z 0.00 z 250.47
1968 0.00 z 0.00 z 0.00 z 0.00 z 0.00 14.50 114.50 41.00 11.00 0.00 0.00 0.00 181.00
1969 0.00 0.00 o 0.00 0.00 1.50 62.50 41.50 20.00 19.50 0.00 0.00 0.00 145.00
1970 0.00 0.00 0.00 0.00 0.00 56.00 89.00 48.50 0.00 0.00 0.00 0.00 n 193.50
1971 0.00 0.00 0.00 0.00 0.00 2.50 121.50 118.00 0.00 0.00 0.00 0.00 242.00
1972 0.00 0.00 0.00 0.00 7.00 4.50 24.00 72.00 3.50 0.00 0.00 0.00 111.00
1973 0.00 0.00 0.00 0.00 0.00 17.00 94.00 72.50 15.00 0.00 0.00 0.00 198.50
1974 0.00 0.00 0.00 0.00 0.00 18.50 34.50 58.50 9.00 0.00 0.00 0.00 120.50
1975 0.00 0.00 0.00 0.00 0.00 4.50 124.50 11.50 0.00 0.00 0.00 0.00 140.50
1976 0.00 0.00 0.00 0.00 0.00 2.50 35.50 18.00 2.00 0.00 0.00 0.00 58.00
1977 0.00 0.00 0.00 0.00 0.00 28.50 43.50 169.00 0.00 0.00 0.00 0.00 241.00
1978 0.00 0.00 0.00 0.00 0.00 29.50 73.37 a 69.75 a 0.00 0.00 0.00 0.00 172.62
1979 0.00 0.00 0.00 0.00 0.50 24.00 99.50 52.00 7.50 0.00 0.00 0.00 183.50
1980 0.00 0.00 0.00 0.00 0.00 2.50 59.00 21.00 0.00 0.00 0.00 0.00 82.50
1981 0.00 0.00 0.00 0.00 0.00 0.00 50.00 148.50 19.50 0.00 0.00 0.00 218.00
1982 0.00 0.00 0.00 0.00 0.00 36.50 73.50 51.00 8.50 0.00 0.00 0.00 169.50
1983 0.00 0.00 0.00 0.00 21.50 0.50 21.00 73.50 0.00 0.00 0.00 0.00 116.50
1984 0.00 0.00 0.00 0.00 0.00 2.00 69.50 76.00 0.00 0.00 0.00 0.00 147.50
1985 0.00 0.00 0.00 0.00 0.00 7.50 162.00 21.50 0.00 0.00 0.00 0.00 191.00
1986 0.00 0.00 0.00 0.00 25.00 35.00 20.00 111.00 1.00 0.00 0.00 0.00 192.00
1987 0.00 0.00 0.00 0.00 3.00 47.07 a 57.00 51.00 30.00 0.00 0.00 0.00 188.07
1988 0.00 0.00 0.00 0.00 0.00 13.50 58.50 38.00 22.50 0.00 0.00 0.00 132.50
1989 0.00 0.00 0.00 0.00 0.00 7.00 35.50 37.00 0.00 0.00 0.00 0.00 79.50
1990 0.00 0.00 0.00 0.00 0.00 11.50 106.00 102.50 5.50 0.00 0.00 0.00 225.50
1991 0.00 0.00 0.00 0.00 0.00 0.00 41.50 94.00 1.50 0.00 0.00 0.00 137.00
1992 0.00 0.00 0.00 0.00 4.00 84.00 59.00 93.50 0.00 0.00 0.00 0.00 240.50
1993 0.00 0.00 0.00 0.00 16.50 4.00 0.00 39.00 12.50 0.00 0.00 0.00 72.00
1994 0.00 0.00 0.00 0.00 0.00 6.50 119.50 43.00 2.50 0.00 0.00 0.00 171.50
1995 0.00 0.00 0.00 0.00 0.50 4.00 53.00 14.50 10.50 0.00 0.00 0.00 82.50
1996 0.00 0.00 0.00 0.00 0.00 0.00 107.50 49.50 4.00 0.00 0.00 0.00 161.00
1997 0.00 0.00 0.00 0.00 0.00 0.00 29.50 78.00 7.00 0.00 0.00 0.00 114.50
1998 0.00 0.00 0.00 0.00 0.00 7.00 154.00 104.50 33.00 0.00 0.00 0.00 298.50
1999 0.00 a 0.00 0.00 0.00 0.50 5.50 23.00 84.50 0.00 0.00 0.00 0.00 113.50
2000 0.00 0.00 0.00 0.00 0.00 9.50 46.00 54.00 3.00 0.00 0.00 0.00 112.50
2001 0.00 0.00 0.00 0.00 6.00 3.50 51.00 93.50 11.00 0.00 0.00 0.00 165.00
2002 0.00 0.00 0.00 0.00 0.00 33.00 93.50 38.50 3.00 0.00 0.00 0.00 168.00
2003 0.00 0.00 0.00 0.00 0.00 26.00 105.50 60.50 18.00 0.00 0.00 0.00 210.00
2004 0.00 0.00 0.00 0.00 0.00 59.50 109.50 122.50 0.00 0.00 0.00 0.00 291.50
2005 0.00 0.00 0.00 0.00 5.00 2.50 56.00 66.00 1.00 0.00 0.00 0.00 130.50
2006 0.00 0.00 0.00 0.00 10.00 25.50 122.50 46.00 24.00 0.00 0.00 0.00 228.00
2007 0.00 0.00 0.00 0.00 0.00 22.00 125.50 37.00 3.00 0.00 0.00 0.00 187.50
2008 0.00 0.00 0.00 0.00 5.50 25.50 42.50 70.00 1.50 0.00 0.00 0.00 145.00
2009 0.00 0.00 0.00 0.00 6.00 26.50 166.00 116.00 18.50 0.00 0.00 0.00 a 333.00
2010 0.00 0.00 0.00 0.00 0.00 4.50 104.00 59.50 1.50 0.00 0.00 0.00 169.50
2011 0.00 0.00 a 0.00 0.00 0.00 5.50 33.50 80.50 28.00 0.00 0.00 0.00 147.50
2012 0.00 i 0.00 b 0.00 0.00 2.50 2.50 i 141.05 a 128.02 d 7.50 b 0.00 a 0.00 b 0.00 279.07
2013 0.00 a 0.00 a 0.00 b 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 0.00 2.47 15.55 75.38 58.10 6.36 0.00 0.00 0.00 161.11
S.D. 0.00 0.00 0.00 0.00 6.16 18.78 41.53 39.08 8.57 0.00 0.00 0.00 64.59
SKEW 0.00 0.00 0.00 0.00 3.50 1.82 0.42 0.77 1.46 0.00 0.00 0.00 0.42
MAX 0.00 0.00 0.00 0.00 35.00 84.00 174.00 169.00 33.00 0.00 0.00 0.00 333.00
MIN 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.50 0.00 0.00 0.00 0.00 21.93
NO YRS 69 72 66 66 70 68 71 71 71 71 71 64 48