WINTHROP 1 WSW, WASHINGTON

Monthly Total Cooling Degree Days

(459376)

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
1906 0.00 z 0.00 z 0.00 0.00 z 0.00 6.00 v 360.00 135.00 12.00 0.00 z 0.00 0.00 z 507.00
1907 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 15.58 d 0.00 z 0.00 z 0.00 z 15.58
1908 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 z 0.00 z 0.00 z 0.00
1909 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 z 0.00 v 0.00 j 0.00
1910 0.00 a 0.00 0.00 0.00 x 0.00 z 3.50 z 32.50 z 32.00 w 0.00 z 0.00 y 0.00 p 0.00 0.00
1911 0.00 c 0.00 a 0.00 0.00 7.00 1.50 z 0.00 z 0.00 z 0.00 h 0.00 c 0.00 a 0.00 7.00
1912 0.00 0.00 0.00 0.00 0.00 a 82.00 123.43 d 48.10 b 2.00 0.00 0.00 0.00 255.53
1913 0.00 a 0.00 0.00 0.00 b 5.50 14.48 a 127.62 a 139.50 0.00 0.00 0.00 0.00 287.10
1914 0.00 0.00 0.00 0.00 0.00 24.50 154.00 145.50 9.50 0.00 0.00 0.00 333.50
1915 0.00 0.00 0.00 0.00 0.00 23.50 102.00 233.00 1.50 0.00 0.00 0.00 360.00
1916 0.00 0.00 0.00 0.00 0.00 b 28.50 36.00 119.00 10.00 0.00 0.00 0.00 193.50
1917 0.00 0.00 0.00 0.00 0.00 3.50 186.52 a 326.50 3.00 0.00 0.00 a 0.00 a 519.52
1918 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 45.00 9.50 0.00 0.00 54.50
1919 0.00 0.00 0.00 0.00 0.00 16.00 34.00 v 200.50 2.00 0.00 w 0.00 0.00 d 218.50
1920 0.00 r 0.00 f 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 r 0.00 d 0.00
1921 0.00 z 0.00 z 0.00 z 0.00 z 0.00 15.50 97.50 120.50 0.00 0.00 0.00 0.00 233.50
1922 0.00 0.00 0.00 0.00 4.50 84.50 195.00 130.00 27.00 0.00 0.00 0.00 441.00
1923 0.00 0.00 0.00 0.00 0.00 22.00 169.00 135.00 36.50 0.00 0.00 0.00 362.50
1924 0.00 0.00 0.00 0.00 24.50 31.50 192.00 117.50 40.00 0.00 0.00 0.00 a 405.50
1925 0.00 0.00 0.00 0.00 4.00 79.50 228.00 130.00 2.50 0.00 0.00 0.00 444.00
1926 0.00 0.00 0.00 0.50 0.00 99.50 245.00 107.50 0.00 0.00 0.00 0.00 452.50
1927 0.00 0.00 0.00 0.00 0.00 6.50 147.50 125.50 0.00 0.00 0.00 0.00 279.50
1928 0.00 0.00 0.00 0.00 9.00 48.50 189.50 95.00 15.50 0.00 0.00 0.00 357.50
1929 0.00 0.00 0.00 0.00 0.50 8.00 84.50 129.00 9.00 0.00 a 0.00 0.00 231.00
1930 0.00 0.00 0.00 0.00 0.50 3.50 245.00 97.50 6.00 0.00 0.00 0.00 a 352.50
1931 0.00 0.00 0.00 0.00 4.00 40.50 175.00 122.00 19.00 0.00 0.00 0.00 360.50
1932 0.00 0.00 0.00 0.00 0.00 72.50 62.00 133.50 12.00 0.00 0.00 0.00 280.00
1933 0.00 0.00 0.00 0.00 0.00 19.00 123.50 124.00 0.00 0.00 0.00 0.00 266.50
1934 0.00 0.00 0.00 0.00 a 18.00 49.00 119.00 135.50 21.50 0.00 0.00 0.00 343.00
1935 0.00 0.00 0.00 0.00 0.00 16.50 123.00 65.00 27.00 0.00 0.00 0.00 231.50
1936 0.00 a 0.00 0.00 2.59 a 27.00 32.50 124.00 120.50 8.00 0.00 0.00 0.00 a 314.59
1937 0.00 a 0.00 b 0.00 0.00 0.00 33.00 180.00 47.00 17.00 0.00 0.00 0.00 a 277.00
1938 0.00 z 0.00 q 0.00 z 0.00 z 3.00 63.50 209.00 44.50 39.00 0.00 0.00 0.00 a 359.00
1939 0.00 0.00 a 0.00 e 0.00 b 2.00 25.00 155.50 144.00 10.00 0.00 0.00 0.00 a 336.50
1940 0.00 a 0.00 0.00 0.00 3.00 63.50 133.50 91.00 33.50 0.00 0.00 0.00 a 324.50
1941 0.00 0.00 0.00 0.00 0.50 28.00 181.00 97.50 0.00 0.00 0.00 0.00 307.00
1942 0.00 a 0.00 0.00 0.00 0.00 15.00 116.00 168.50 11.50 0.00 0.00 0.00 a 311.00
1943 0.00 0.00 0.00 0.00 0.00 d 7.00 132.00 47.50 h 12.00 0.00 0.00 0.00 151.00
1944 0.00 b 0.00 0.00 0.00 2.50 19.00 140.00 39.50 30.50 0.00 0.00 0.00 231.50
1945 0.00 d 0.00 0.00 0.00 i 1.55 a 20.00 145.18 a 115.00 5.00 0.00 a 0.00 0.00 a 286.73
1946 0.00 0.00 0.00 f 0.00 0.00 5.50 75.50 75.50 2.00 0.00 0.00 a 0.00 158.50
1947 0.00 0.00 0.00 0.00 b 13.50 11.00 88.19 b 0.00 z 4.50 0.00 0.00 0.00 117.19
1948 0.00 0.00 0.00 0.00 3.10 a 53.79 a 64.58 a 19.12 a 7.20 e 0.00 b 0.00 0.00 147.79
1949 0.00 0.00 0.00 a 0.00 13.00 22.50 114.70 a 77.50 17.50 0.00 0.00 a 0.00 245.20
1950 0.00 0.00 0.00 0.00 0.00 27.41 a 113.67 a 95.58 a 18.75 b 0.00 0.00 0.00 a 255.41
1951 0.00 a 0.00 0.00 0.00 1.50 9.00 132.78 a 109.50 2.50 0.00 a 0.00 0.00 255.28
1952 0.00 0.00 0.00 0.50 1.50 12.50 127.50 135.00 27.00 0.00 0.00 0.00 304.00
1953 0.00 0.00 a 0.00 0.00 0.50 0.00 77.50 81.50 20.50 0.00 0.00 0.00 180.00
1954 0.00 0.00 a 0.00 d 0.00 1.55 a 1.03 a 38.50 31.00 0.00 0.00 a 0.00 0.00 72.08
1955 0.00 0.00 0.00 0.00 0.00 33.00 104.22 b 56.50 37.00 0.00 0.00 a 0.00 a 230.72
1956 0.00 0.00 0.00 a 0.00 6.00 5.00 170.00 103.50 3.62 a 0.00 0.00 0.00 288.12
1957 0.00 0.00 0.00 l 0.00 2.50 29.00 68.00 11.50 6.00 0.50 0.00 0.00 117.50
1958 0.00 0.00 0.00 0.00 36.00 98.00 210.00 200.50 15.00 0.00 0.00 0.00 559.50
1959 0.00 0.00 0.00 0.00 0.00 32.00 138.50 36.34 b 2.00 0.00 0.00 0.00 208.84
1960 0.00 0.00 0.00 0.00 0.00 11.50 198.00 88.00 7.00 0.00 0.00 0.00 304.50
1961 0.00 0.00 0.00 0.00 2.50 74.00 185.00 183.00 4.00 0.00 0.00 0.00 448.50
1962 0.00 a 0.00 0.00 0.00 0.00 9.50 104.50 44.50 6.50 0.00 0.00 0.00 165.00
1963 0.00 0.00 0.00 0.00 b 4.00 31.00 55.00 106.50 34.50 0.00 0.00 0.00 231.00
1964 0.00 0.00 a 0.00 0.00 0.00 1.00 0.00 z 5.50 t 2.50 0.00 0.00 0.00 3.50
1965 0.00 0.00 0.00 0.00 0.00 16.00 108.50 114.00 0.00 0.00 0.00 0.00 238.50
1966 0.00 0.00 0.00 0.00 5.50 9.00 11.00 i 47.50 h 8.00 0.00 0.00 0.00 22.50
1967 0.00 0.00 0.00 0.00 0.00 22.50 84.50 141.00 47.00 0.00 0.00 0.00 295.00
1968 0.00 0.00 e 0.00 z 0.00 0.00 b 9.11 b 129.50 37.00 2.00 0.00 0.00 0.00 b 177.61
1969 0.00 a 0.00 0.00 c 0.00 4.00 95.50 63.03 a 29.50 8.08 d 0.00 b 0.00 b 0.00 a 200.11
1970 0.00 0.00 0.00 z 0.00 0.00 101.50 177.73 a 84.50 0.00 0.00 0.00 0.00 c 363.73
1971 0.00 0.00 0.00 a 0.00 1.50 0.00 z 167.73 c 177.22 a 0.00 d 0.00 c 0.00 a 0.00 c 346.45
1972 0.00 0.00 f 0.00 0.00 6.50 0.00 z 49.94 d 96.21 b 0.52 a 0.00 e 0.00 a 0.00 z 153.17
1973 0.00 b 0.00 0.00 0.00 z 0.00 z 0.00 z 148.50 138.50 20.00 0.00 a 0.00 0.00 307.00
1974 0.00 a 0.00 0.00 b 0.00 z 0.00 61.50 59.50 95.50 12.00 0.00 0.00 z 0.00 228.50
1975 0.00 0.00 0.00 0.00 0.00 18.00 195.00 33.00 7.00 0.00 0.00 0.00 253.00
1976 0.00 a 0.00 0.00 0.00 0.00 12.00 91.00 51.00 16.00 0.00 0.00 0.00 c 170.00
1977 0.00 b 0.00 0.00 0.00 1.50 87.50 123.50 242.50 1.50 0.00 0.00 b 0.00 a 456.50
1978 0.00 0.00 0.00 0.00 0.00 54.50 146.50 92.50 0.00 0.00 0.00 a 0.00 293.50
1979 0.00 0.00 0.00 b 0.00 4.50 44.00 184.00 85.00 g 2.00 0.00 b 0.00 a 0.00 d 234.50
1980 0.00 0.00 0.00 0.00 0.00 b 1.00 92.50 51.50 5.50 0.00 0.00 0.00 150.50
1981 0.00 0.00 0.00 0.00 0.00 3.50 74.50 153.00 21.00 0.00 0.00 0.00 252.00
1982 0.00 0.00 0.00 0.00 0.00 0.00 z 69.00 62.50 9.50 0.00 0.00 0.00 141.00
1983 0.00 0.00 0.00 0.00 14.50 20.50 24.50 88.50 3.50 0.00 0.00 0.00 151.50
1984 0.00 0.00 0.00 0.00 5.50 9.50 109.50 109.50 0.00 0.00 0.00 0.00 234.00
1985 0.00 0.00 0.00 0.00 1.50 11.00 208.00 57.50 0.50 0.00 0.00 0.00 278.50
1986 0.00 0.00 0.00 0.00 35.50 91.50 59.50 215.00 22.50 0.00 0.00 0.00 424.00
1987 0.00 a 0.00 0.00 a 1.50 7.00 82.00 105.00 87.50 47.50 1.50 0.00 0.00 332.00
1988 0.00 0.00 0.00 0.00 1.50 47.50 136.50 89.50 39.50 0.00 0.00 0.00 314.50
1989 0.00 0.00 0.00 0.00 0.00 54.50 104.50 47.50 0.50 0.00 0.00 0.00 207.00
1990 0.00 0.00 0.00 0.00 0.00 22.00 0.00 z 149.00 14.00 0.00 0.00 0.00 185.00
1991 0.00 0.00 0.00 0.00 0.00 0.50 102.00 156.50 13.00 0.00 0.00 0.00 272.00
1992 0.00 0.00 0.00 0.00 18.50 132.00 96.50 150.00 8.00 0.00 0.00 0.00 405.00
1993 0.00 0.00 0.00 0.00 22.50 10.00 18.50 55.00 26.50 0.00 0.00 0.00 132.50
1994 0.00 0.00 0.00 0.00 6.00 28.00 198.50 0.00 z 17.50 0.00 0.00 0.00 250.00
1995 0.00 0.00 0.00 0.00 5.00 16.50 121.00 38.00 39.00 0.00 0.00 0.00 219.50
1996 0.00 0.00 0.00 0.00 0.00 1.00 151.50 112.00 8.00 0.00 0.00 0.00 272.50
1997 0.00 0.00 0.00 0.00 6.00 14.00 48.00 117.00 17.00 0.00 0.00 0.00 202.00
1998 0.00 0.00 0.00 0.00 1.00 15.00 214.50 182.50 54.00 0.00 0.00 0.00 467.00
1999 0.00 0.00 0.00 0.00 6.50 20.50 76.00 156.00 0.00 0.00 0.00 0.00 259.00
2000 0.00 0.00 0.00 0.00 0.00 28.00 86.00 115.00 15.50 0.00 0.00 0.00 244.50
2001 0.00 0.00 0.00 0.00 19.50 18.00 137.50 155.00 10.50 0.00 0.00 0.00 340.50
2002 0.00 0.00 0.00 0.00 0.00 52.50 175.00 110.50 15.50 0.00 0.00 0.00 353.50
2003 0.00 0.00 0.00 0.00 9.00 49.50 194.00 138.00 35.00 0.50 0.00 0.00 426.00
2004 0.00 0.00 0.00 0.00 0.00 73.00 187.00 0.00 z 3.00 0.00 0.00 0.00 263.00
2005 0.00 0.00 0.00 1.00 8.00 25.50 109.50 138.00 3.50 0.00 0.00 z 0.00 285.50
2006 0.00 0.00 0.00 0.00 22.50 49.50 220.50 79.00 31.50 0.00 0.00 0.00 403.00
2007 0.00 0.00 0.00 0.00 0.00 32.50 238.50 70.00 18.00 0.00 0.00 0.00 359.00
2008 0.00 0.00 0.00 0.00 16.50 35.00 129.00 115.50 0.50 0.00 0.00 0.00 296.50
2009 0.00 0.00 0.00 0.00 7.00 21.50 183.00 163.50 43.50 0.00 0.00 0.00 418.50
2010 0.00 0.00 0.00 0.00 0.00 8.00 128.50 95.50 2.50 0.00 0.00 0.00 234.50
2011 0.00 0.00 0.00 0.00 0.00 6.50 49.00 121.50 41.50 0.00 a 0.00 0.00 a 218.50
2012 0.00 0.00 0.00 0.00 2.00 2.50 152.00 140.00 9.00 0.00 0.00 a 0.00 305.50
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 0.06 4.42 32.38 133.29 110.64 13.74 0.12 0.00 0.00 296.56
S.D. 0.00 0.00 0.00 0.33 7.58 29.01 58.58 53.21 13.87 0.96 0.00 0.00 94.60
SKEW 0.00 0.00 0.00 6.11 2.37 1.22 0.58 0.83 1.06 9.45 0.00 0.00 0.38
MAX 0.00 0.00 0.00 2.59 36.00 132.00 360.00 326.50 54.00 9.50 0.00 0.00 559.50
MIN 0.00 0.00 0.00 0.00 0.00 0.00 18.50 11.50 0.00 0.00 0.00 0.00 72.08
NO YRS 101 100 98 95 100 95 96 93 102 100 100 102 77