DAYTON 1 WSW, WASHINGTON

Monthly Total Cooling Degree Days

(452030)

Base Temperature = 65 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200506
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
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 1.00 m 24.00 z 16.50 x 105.50 v 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 0.01 1.47 19.20 68.58 204.31 177.43 49.35 2.24 0.00 0.00 517.39
S.D. 0.00 0.00 0.06 3.60 19.17 44.51 63.10 70.41 32.60 4.18 0.00 0.00 133.64
SKEW 0.00 0.00 8.49 3.12 1.14 0.79 0.18 0.33 0.67 2.44 0.00 0.00 0.24
MAX 0.00 0.00 0.50 19.50 75.50 180.00 357.50 324.00 142.00 20.00 0.00 0.00 893.00
MIN 0.00 0.00 0.00 0.00 0.00 0.50 43.00 37.50 3.50 0.00 0.00 0.00 168.50
NO YRS 73 75 75 75 75 74 74 74 74 73 74 74 70