DAYTON 1 WSW, WASHINGTON

Monthly Total Cooling Degree Days

(452030)

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
1893 0.00 z 0.00 z 0.00 z 0.00 2.00 10.00 115.06 e 0.00 z 31.00 0.00 0.00 0.00 158.06
1894 0.00 0.00 0.00 0.00 z 0.00 z 34.50 250.00 270.50 24.00 0.00 z 0.00 z 0.00 z 579.00
1895 0.00 z 0.00 z 0.00 z 1.50 0.00 z 0.00 z 0.00 z 157.00 4.00 0.00 0.00 z 0.00 z 162.50
1896 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 0.00 0.00
1897 0.00 0.00 0.00 4.00 56.00 45.00 0.00 z 260.50 20.00 0.00 0.00 d 0.00 385.50
1898 0.00 0.00 0.00 0.00 6.50 63.50 0.00 z 0.00 z 23.50 0.00 0.00 0.00 93.50
1899 0.00 0.00 0.00 0.00 s 0.00 7.50 162.00 20.50 27.00 0.00 0.00 0.00 217.00
1900 0.00 0.00 0.00 a 0.00 5.50 78.00 125.50 205.50 21.50 0.00 0.00 0.00 436.00
1901 0.00 0.00 0.00 0.00 25.32 a 13.00 126.00 231.31 e 0.00 z 0.00 z 0.00 z 0.00 z 395.62
1902 0.00 0.00 0.00 z 0.00 0.00 28.39 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 28.39
1903 0.00 z 0.00 z 0.00 0.00 15.00 118.00 103.00 95.00 7.00 0.00 0.00 0.00 338.00
1904 0.00 0.00 0.00 5.00 0.00 z 50.50 147.50 232.00 80.00 7.00 0.00 0.00 522.00
1905 0.00 0.00 0.00 0.00 3.00 28.00 230.00 155.00 52.50 0.00 0.00 0.00 468.50
1906 0.00 0.00 0.00 11.00 8.00 27.00 368.50 154.00 0.00 z 0.00 z 0.00 z 0.00 z 568.50
1907 0.00 z 0.00 z 0.00 z 0.00 z 12.00 35.50 126.00 69.50 14.00 0.00 0.00 a 0.00 257.00
1908 0.00 0.00 d 0.00 d 0.00 e 4.28 b 46.03 a 242.50 196.73 e 72.50 0.50 0.00 0.00 562.54
1909 0.00 0.00 0.00 0.00 5.00 40.00 108.50 114.00 55.00 0.50 0.00 0.00 323.00
1910 0.00 0.00 0.00 0.00 z 41.50 32.50 184.00 152.00 15.00 4.50 0.00 0.00 429.50
1911 0.00 0.00 0.00 0.00 6.00 50.89 b 223.50 74.00 13.00 2.00 0.00 0.00 369.39
1912 0.00 0.00 0.00 0.00 6.00 67.50 139.00 96.00 5.00 0.00 0.00 0.00 313.50
1913 0.00 0.00 0.00 1.00 19.00 30.50 159.50 212.00 34.00 0.00 0.00 0.00 456.00
1914 0.00 0.00 0.00 0.00 5.00 42.50 269.00 178.50 16.00 0.00 0.00 0.00 511.00
1915 0.00 0.00 0.00 0.00 2.00 52.50 162.00 316.00 17.50 0.00 0.00 0.00 550.00
1916 0.00 0.00 0.00 0.00 a 0.00 b 71.00 156.50 215.00 43.00 0.00 0.00 0.00 485.50
1917 0.00 0.00 0.00 0.00 1.00 45.00 278.50 312.00 31.50 f 6.00 0.00 0.00 642.50
1918 0.00 0.00 0.00 0.00 6.00 188.50 230.00 128.00 100.00 13.50 0.00 0.00 666.00
1919 0.00 0.00 0.00 0.00 14.00 30.50 257.50 244.50 13.00 0.00 0.00 0.00 559.50
1920 0.00 0.00 0.00 0.00 2.50 37.00 282.00 242.32 a 28.00 4.00 0.00 0.00 595.82
1921 0.00 0.00 0.00 0.00 1.50 97.00 191.00 189.00 0.00 0.00 a 0.00 0.00 478.50
1922 0.00 0.00 0.00 0.00 17.50 206.50 329.00 172.00 77.50 4.00 0.00 0.00 a 806.50
1923 0.00 0.00 0.00 0.00 8.00 44.50 197.00 111.00 44.50 0.50 0.00 0.00 405.50
1924 0.00 0.00 0.00 0.00 69.00 58.00 123.00 92.50 58.50 0.00 0.00 0.00 401.00
1925 0.00 0.00 0.00 0.00 9.50 131.00 273.00 124.50 8.00 0.00 0.00 0.00 546.00
1926 0.00 0.00 0.00 20.00 3.00 141.00 232.00 175.00 6.50 0.00 0.00 0.00 577.50
1927 0.00 0.00 0.00 0.50 1.50 46.50 177.00 162.00 2.00 0.00 0.00 0.00 389.50
1928 0.00 0.00 0.00 0.00 62.50 69.00 249.50 106.00 39.00 2.50 0.00 0.00 528.50
1929 0.00 0.00 0.00 0.00 47.50 125.00 j 118.00 218.00 29.00 0.00 0.00 0.00 412.50
1930 0.00 0.00 0.00 0.00 0.00 30.50 182.50 222.00 47.50 0.00 0.00 0.00 482.50
1931 0.00 a 0.00 0.00 0.00 43.50 67.50 207.50 162.00 39.00 0.50 0.00 0.00 520.00
1932 0.00 0.00 0.00 0.00 3.00 89.50 130.50 134.50 41.00 6.00 0.00 0.00 404.50
1933 0.00 0.00 0.00 0.00 2.50 56.50 181.00 203.00 4.50 0.50 0.00 0.00 448.00
1934 0.00 0.00 0.00 13.00 44.50 76.50 183.00 211.00 34.50 7.00 0.00 0.00 569.50
1935 0.00 0.00 0.00 0.00 5.00 55.50 183.00 142.50 84.50 20.00 0.00 0.00 490.50
1936 0.00 0.00 0.00 12.00 62.50 106.50 188.50 169.00 24.50 0.00 0.00 0.00 563.00
1937 0.00 0.00 0.00 0.00 14.00 84.00 259.50 108.50 79.50 0.00 0.00 0.00 545.50
1938 0.00 0.00 0.00 0.00 23.50 97.00 275.00 94.00 113.50 3.50 0.00 0.00 606.50
1939 0.00 0.00 0.00 0.00 21.50 34.50 223.50 199.50 33.00 0.00 0.00 0.00 512.00
1940 0.00 0.00 0.00 0.00 36.50 145.50 186.50 155.00 60.00 10.00 0.00 0.00 593.50
1941 0.00 0.00 0.00 2.50 14.00 18.00 266.50 178.00 4.00 0.00 0.00 0.00 483.00
1942 0.00 0.00 0.50 1.00 10.00 22.50 225.00 266.50 47.50 0.00 0.00 0.00 573.00
1943 0.00 a 0.00 0.00 4.50 1.00 34.00 214.50 108.00 43.50 19.00 0.00 0.00 424.50
1944 0.00 0.00 0.00 0.50 10.00 45.00 204.08 a 150.00 107.00 0.00 0.00 0.00 516.58
1945 0.00 0.00 0.00 0.00 6.00 49.00 231.50 212.00 29.50 0.50 0.00 0.00 528.50
1946 0.00 0.00 0.00 4.50 0.00 39.00 180.00 171.50 16.00 0.00 0.00 a 0.00 411.00
1947 0.00 0.00 0.00 1.50 44.50 18.50 156.00 108.00 66.50 6.00 0.00 0.00 401.00
1948 0.00 0.00 0.00 0.00 13.50 92.50 98.50 61.50 47.00 0.00 0.00 0.00 313.00
1949 0.00 0.00 0.00 1.00 50.50 45.00 137.50 117.00 40.00 0.00 a 0.00 0.00 391.00
1950 0.00 a 0.00 0.00 0.00 4.00 53.00 173.50 193.00 72.50 0.00 0.00 0.00 496.00
1951 0.00 0.00 0.00 0.00 8.00 12.50 181.00 136.50 15.00 0.00 0.00 0.00 353.00
1952 0.00 0.00 0.00 4.00 0.00 19.50 171.50 158.00 54.50 0.00 0.00 0.00 407.50
1953 0.00 0.00 0.00 0.00 4.50 0.50 122.50 136.50 55.50 0.00 0.00 0.00 319.50
1954 0.00 0.00 0.00 0.00 3.50 9.50 107.50 37.50 10.50 0.00 0.00 0.00 168.50
1955 0.00 0.00 0.00 0.00 0.00 47.00 134.00 86.00 54.50 0.00 0.00 0.00 321.50
1956 0.00 0.00 0.00 0.00 37.50 16.50 194.00 121.50 13.00 0.00 0.00 0.00 382.50
1957 0.00 0.00 0.00 2.50 12.00 54.00 97.50 43.50 27.50 0.00 0.00 0.00 237.00
1958 0.00 0.00 0.00 0.00 75.50 131.00 323.00 310.00 52.50 1.00 0.00 0.00 893.00
1959 0.00 0.00 0.00 0.00 10.00 49.50 240.00 97.13 a 34.00 0.00 0.00 0.00 430.63
1960 0.00 0.00 0.00 0.00 3.00 43.50 317.50 134.00 24.00 5.50 0.00 0.00 527.50
1961 0.00 0.00 0.00 0.00 9.50 172.50 276.50 315.00 5.00 0.00 0.00 0.00 778.50
1962 0.00 0.00 0.00 0.50 0.00 38.50 164.50 99.00 37.50 0.00 0.00 0.00 340.00
1963 0.00 0.00 0.00 0.00 10.50 71.00 101.50 196.50 119.00 12.00 0.00 0.00 510.50
1964 0.00 0.00 0.00 0.00 5.00 52.00 199.00 84.00 16.50 0.50 0.00 0.00 357.00
1965 0.00 0.00 0.00 3.50 10.50 33.50 232.50 214.50 5.00 0.00 0.00 0.00 499.50
1966 0.00 0.00 0.00 0.00 41.50 35.00 148.00 165.50 68.00 1.50 0.00 0.00 459.50
1967 0.00 a 0.00 0.00 0.00 9.50 104.50 259.00 314.50 130.00 0.50 0.00 0.00 818.00
1968 0.00 0.00 0.00 0.00 11.00 69.00 290.00 117.50 68.00 1.00 0.00 0.00 556.50
1969 0.00 0.00 0.00 0.50 24.50 142.00 169.00 131.50 64.50 0.00 0.00 0.00 532.00
1970 0.00 i 0.00 0.00 0.00 14.98 a 178.50 285.50 213.50 11.00 0.00 0.00 0.00 703.48
1971 0.00 0.00 0.00 0.00 13.00 12.00 239.00 324.00 10.50 4.00 0.00 0.00 602.50
1972 0.00 z 0.00 0.00 0.00 37.50 74.00 177.00 277.50 44.00 0.00 0.00 0.00 610.00
1973 0.00 0.00 0.00 0.00 36.50 0.00 z 246.85 d 160.00 45.00 0.00 0.00 0.00 488.35
1974 0.00 0.00 0.00 0.00 0.00 124.50 203.00 204.00 73.50 0.00 z 0.00 0.00 605.00
1975 0.00 a 0.00 0.00 0.00 4.00 34.00 297.00 99.50 50.00 8.50 0.00 0.00 493.00
1976 0.00 0.00 0.00 0.00 4.50 42.00 183.50 116.50 80.00 8.50 0.00 0.00 435.00
1977 0.00 0.00 0.00 13.50 0.00 132.00 175.00 318.00 15.00 0.00 0.00 0.00 653.50
1978 0.00 0.00 0.00 0.00 3.50 79.50 198.00 168.00 15.50 0.00 0.00 0.00 464.50
1979 0.00 0.00 0.00 0.00 22.50 123.50 249.00 199.00 78.21 b 3.74 b 0.00 0.00 675.96
1980 0.00 0.00 0.00 6.21 a 8.50 17.59 a 208.50 121.23 c 44.00 10.00 0.00 0.00 416.03
1981 0.00 0.00 0.00 0.00 12.50 12.50 156.66 c 285.50 93.00 0.00 0.00 0.00 560.16
1982 0.00 0.00 0.00 0.00 7.00 146.00 206.00 187.50 41.00 0.00 0.00 0.00 587.50
1983 0.00 0.00 0.00 0.00 66.00 50.50 123.50 264.00 16.00 0.00 0.00 0.00 520.00
1984 0.00 0.00 0.00 0.00 11.00 33.50 214.50 221.00 41.50 3.50 0.00 0.00 525.00
1985 0.00 a 0.00 0.00 0.00 29.50 60.00 339.50 98.50 3.50 0.00 0.00 0.00 531.00
1986 0.00 0.00 0.00 0.50 60.50 156.00 104.50 301.00 16.00 0.00 0.00 0.00 638.50
1987 0.00 0.00 0.00 19.50 38.00 135.00 165.00 146.50 104.00 1.50 0.00 0.00 609.50
1988 0.00 0.00 0.00 0.00 21.50 93.50 200.00 169.00 72.50 7.50 0.00 0.00 564.00
1989 0.00 0.00 0.00 0.00 12.50 96.00 179.00 142.00 36.00 0.00 0.00 0.00 465.50
1990 0.00 0.00 0.00 0.00 3.50 75.00 280.00 217.00 97.00 0.00 0.00 0.00 672.50
1991 0.00 0.00 0.00 0.00 0.00 17.50 176.50 258.50 55.50 2.00 0.00 0.00 510.00
1992 0.00 0.00 0.00 0.00 51.00 180.00 161.00 223.50 17.00 4.50 0.00 0.00 637.00
1993 0.00 0.00 0.00 0.00 57.50 57.50 43.00 125.50 71.00 1.00 0.00 0.00 355.50
1994 0.00 0.00 0.00 8.00 28.50 60.50 279.50 178.00 64.50 0.00 0.00 0.00 619.00
1995 0.00 0.00 0.00 0.00 15.50 37.50 196.50 103.50 84.00 0.00 0.00 0.00 437.00
1996 0.00 0.00 0.00 0.50 0.00 43.50 279.50 205.00 23.00 0.00 0.00 0.00 551.50
1997 0.00 0.00 0.00 0.00 37.50 46.00 167.00 242.00 75.50 7.00 0.00 0.00 575.00
1998 0.00 0.00 0.00 4.00 10.50 58.50 357.50 249.00 142.00 0.00 0.00 0.00 821.50
1999 0.00 0.00 0.00 0.00 14.50 72.00 169.00 267.00 26.50 0.00 0.00 0.00 549.00
2000 0.00 0.00 0.00 0.00 a 9.50 56.00 186.00 121.00 37.50 0.00 0.00 0.00 410.00
2001 0.00 0.00 0.00 6.50 61.00 50.00 185.00 260.50 76.50 0.00 0.00 0.00 639.50
2002 0.00 0.00 0.00 0.00 9.50 123.00 290.00 143.00 46.00 0.00 0.00 0.00 611.50
2003 0.00 0.00 0.00 0.00 29.00 103.50 307.00 215.00 89.00 5.00 0.00 0.00 748.50
2004 0.00 0.00 0.00 0.00 0.00 119.50 257.00 262.00 15.00 2.00 0.00 0.00 655.50
2005 0.00 0.00 0.00 0.00 23.00 43.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 66.00
2006 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
2007 0.00 0.00 0.00 0.00 h 5.50 l 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 z 0.00
2008 0.00 z 0.00 0.00 z 0.00 e 3.62 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 3.62
2009 0.00 0.00 0.00 0.00 22.00 37.50 254.20 a 203.50 58.00 0.00 0.00 0.00 575.20
2010 0.00 0.00 0.00 0.00 8.50 25.00 192.00 163.00 17.00 1.50 0.00 0.00 407.00
2011 0.00 0.00 0.00 0.00 a 0.00 17.40 e 106.50 175.50 61.50 i 11.50 0.00 0.00 310.90
2012 0.00 0.00 0.00 3.00 7.00 15.50 212.00 212.00 20.00 0.00 0.00 0.00 a 469.50
2013 0.00 c 0.00 0.00 c 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 1.38 17.08 64.31 201.82 176.68 43.42 2.02 0.00 0.00 511.38
S.D. 0.00 0.00 0.05 3.64 18.91 44.93 64.19 68.95 31.33 3.88 0.00 0.00 127.51
SKEW 0.00 0.00 10.54 3.42 1.35 1.13 0.27 0.22 0.82 2.51 0.00 0.00 0.36
MAX 0.00 0.00 0.50 20.00 75.50 206.50 368.50 324.00 142.00 20.00 0.00 0.00 893.00
MIN 0.00 0.00 0.00 0.00 0.00 0.50 43.00 20.50 0.00 0.00 0.00 0.00 168.50
NO YRS 112 115 114 113 114 113 111 112 110 110 113 112 95