SPOKANE WSO AIRPORT, WASHINGTON

Monthly Total Cooling Degree Days

(457938)

Base Temperature = 65 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1889 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 83.50 2.59 a 4.00 0.00 0.00 90.09
1890 0.00 0.00 0.00 7.00 7.00 30.00 135.50 126.50 11.00 0.00 0.00 0.00 317.00
1891 0.00 0.00 0.00 0.00 29.50 13.00 194.50 187.00 32.50 0.00 0.00 0.00 456.50
1892 0.00 0.00 0.00 0.00 4.50 64.00 78.50 128.00 6.50 5.50 0.00 0.00 287.00
1893 0.00 0.00 0.00 0.00 0.00 4.50 113.00 135.50 44.00 0.00 0.00 0.00 297.00
1894 0.00 0.00 0.00 0.00 43.00 37.50 167.00 206.00 5.00 0.00 0.00 0.00 458.50
1895 0.00 0.00 0.00 0.00 3.00 48.50 107.50 107.00 6.50 0.00 0.00 0.00 272.50
1896 0.00 0.00 0.00 0.00 2.00 69.50 255.50 133.00 13.50 0.00 0.00 0.00 473.50
1897 0.00 0.00 0.00 0.00 63.50 34.00 75.00 234.00 8.50 0.00 0.00 0.00 415.00
1898 0.00 0.00 0.00 0.00 2.00 44.00 158.50 274.50 17.00 0.00 0.00 0.00 496.00
1899 0.00 0.00 0.00 0.00 1.00 19.00 176.00 37.50 24.00 0.00 0.00 0.00 257.50
1900 0.00 0.00 0.00 0.00 6.50 77.50 175.50 45.00 10.00 0.00 0.00 0.00 314.50
1901 0.00 0.00 0.00 0.00 20.00 10.00 109.00 239.50 2.00 0.50 0.00 0.00 381.00
1902 0.00 0.00 0.00 0.00 6.00 28.00 100.00 102.50 11.50 0.00 0.00 0.00 248.00
1903 0.00 0.00 0.00 0.00 18.00 88.50 93.00 117.50 0.00 0.00 0.00 0.00 317.00
1904 0.00 0.00 0.00 0.00 0.50 48.00 187.50 198.00 25.50 0.00 0.00 0.00 459.50
1905 0.00 0.00 0.00 0.00 2.00 13.00 201.50 169.00 28.50 0.00 0.00 0.00 414.00
1906 0.00 0.00 0.00 5.50 11.00 19.50 338.50 135.00 43.00 0.00 0.00 0.00 552.50
1907 0.00 0.00 0.00 0.00 8.00 23.50 140.00 62.50 7.00 0.00 0.00 0.00 241.00
1908 0.00 0.00 0.00 0.50 0.00 42.00 222.00 172.00 45.50 0.00 0.00 0.00 482.00
1909 0.00 0.00 0.00 0.00 4.00 25.00 88.50 89.00 52.00 0.00 0.00 0.00 258.50
1910 0.00 0.00 0.00 5.50 24.50 22.50 208.50 98.00 11.50 0.00 0.00 0.00 370.50
1911 0.00 0.00 0.00 0.00 2.50 72.50 206.50 67.50 18.50 2.50 0.00 0.00 370.00
1912 0.00 0.00 0.00 0.00 0.00 101.00 113.50 76.50 0.00 0.00 0.00 0.00 291.00
1913 0.00 0.00 0.00 0.00 6.50 36.00 145.00 165.00 12.50 0.00 0.00 0.00 365.00
1914 0.00 0.00 0.00 0.00 14.50 42.50 240.00 173.50 7.50 0.00 0.00 0.00 478.00
1915 0.00 0.00 0.00 0.00 0.00 15.00 151.00 317.00 9.00 0.00 0.00 0.00 492.00
1916 0.00 0.00 0.00 0.00 0.00 42.50 94.00 155.50 19.00 0.00 0.00 0.00 311.00
1917 0.00 0.00 0.00 0.00 0.00 25.50 252.50 199.50 31.00 1.50 0.00 0.00 510.00
1918 0.00 0.00 0.00 0.00 2.00 148.00 219.00 98.50 51.00 1.00 0.00 0.00 519.50
1919 0.00 0.00 0.00 0.00 9.50 49.00 222.50 167.00 10.00 0.00 0.00 0.00 458.00
1920 0.00 0.00 0.00 0.00 0.00 23.00 289.50 214.00 17.50 0.00 0.00 0.00 544.00
1921 0.00 0.00 0.00 0.00 3.00 73.50 165.50 170.00 0.00 0.00 0.00 0.00 412.00
1922 0.00 0.00 0.00 0.00 11.00 157.00 253.00 207.00 45.50 0.00 0.00 0.00 673.50
1923 0.00 0.00 0.00 0.00 1.00 40.00 230.50 163.00 35.00 4.00 0.00 0.00 473.50
1924 0.00 0.00 0.00 0.00 57.00 61.50 218.00 128.50 64.00 0.00 0.00 0.00 529.00
1925 0.00 0.00 0.00 0.00 14.00 142.50 307.00 188.50 17.00 0.00 0.00 0.00 669.00
1926 0.00 0.00 0.00 8.00 2.50 113.00 288.50 116.00 2.50 0.00 0.00 0.00 530.50
1927 0.00 0.00 0.00 0.00 1.50 35.00 208.00 193.50 3.50 0.00 0.00 0.00 441.50
1928 0.00 0.00 0.00 0.00 50.00 53.00 281.50 126.50 47.50 0.00 0.00 0.00 558.50
1929 0.00 0.00 0.00 0.00 15.50 32.00 178.00 256.50 25.50 0.00 0.00 0.00 507.50
1930 0.00 0.00 0.00 0.00 2.50 20.50 247.50 245.00 36.00 0.00 0.00 0.00 551.50
1931 0.00 0.00 0.00 0.00 38.00 52.50 248.00 199.50 46.50 0.00 0.00 0.00 584.50
1932 0.00 0.00 0.00 0.00 3.00 116.00 144.00 189.00 33.50 0.50 0.00 0.00 486.00
1933 0.00 0.00 0.00 0.00 3.00 63.00 212.00 202.00 2.50 0.00 0.00 0.00 482.50
1934 0.00 0.00 0.00 5.50 73.00 75.50 209.00 193.00 37.50 5.00 0.00 0.00 598.50
1935 0.00 0.00 0.00 0.00 1.00 24.50 193.50 120.50 60.50 0.00 0.00 0.00 400.00
1936 0.00 0.00 0.00 7.00 52.00 93.50 240.50 197.00 8.00 0.00 0.00 0.00 598.00
1937 0.00 0.00 0.00 0.00 5.50 64.50 236.50 96.00 66.50 0.00 0.00 0.00 469.00
1938 0.00 0.00 0.00 0.00 20.00 126.50 323.50 109.50 141.00 0.00 0.00 0.00 720.50
1939 0.00 0.00 0.00 5.50 14.50 44.50 243.50 240.00 30.00 0.00 0.00 0.00 578.00
1940 0.00 0.00 0.00 0.00 27.50 140.50 251.00 177.00 71.00 0.50 0.00 0.00 667.50
1941 0.00 0.00 0.00 0.00 5.50 41.00 275.50 145.50 0.00 0.00 0.00 0.00 467.50
1942 0.00 0.00 0.00 0.00 6.00 20.50 203.50 214.00 25.00 0.00 0.00 0.00 469.00
1943 0.00 0.00 0.00 0.00 2.50 12.50 167.50 87.50 20.50 9.50 0.00 0.00 300.00
1944 0.00 0.00 0.00 0.00 9.50 32.00 173.00 81.00 52.00 0.00 0.00 0.00 347.50
1945 0.00 0.00 0.00 0.00 1.00 29.50 192.00 161.00 13.00 0.00 0.00 0.00 396.50
1946 0.00 0.00 0.00 1.00 0.00 18.00 147.50 129.00 21.00 0.00 0.00 0.00 316.50
1947 0.00 0.00 0.00 0.00 18.00 20.50 171.50 89.00 20.50 2.50 0.00 0.00 322.00
1948 0.00 0.00 0.00 0.00 15.00 77.50 67.50 47.00 32.50 0.00 0.00 0.00 239.50
1949 0.00 0.00 0.00 0.00 46.50 36.00 148.50 148.50 50.50 0.00 0.00 0.00 430.00
1950 0.00 0.00 0.00 0.00 0.00 44.50 154.00 170.00 60.50 0.00 0.00 0.00 429.00
1951 0.00 0.00 0.00 0.00 2.50 23.00 209.50 162.00 25.00 0.00 0.00 0.00 422.00
1952 0.00 0.00 0.00 5.00 0.00 24.00 187.00 145.50 66.00 0.00 0.00 0.00 427.50
1953 0.00 0.00 0.00 0.00 2.00 4.00 143.50 139.50 56.00 0.00 0.00 0.00 345.00
1954 0.00 0.00 0.00 0.00 7.50 7.50 124.50 58.00 7.00 0.00 0.00 0.00 204.50
1955 0.00 0.00 0.00 0.00 0.00 62.50 137.00 118.50 75.00 0.00 0.00 0.00 393.00
1956 0.00 0.00 0.00 0.00 44.00 13.50 224.50 150.50 24.50 0.00 0.00 0.00 457.00
1957 0.00 0.00 0.00 3.00 17.00 48.00 110.00 60.50 42.50 0.00 0.00 0.00 281.00
1958 0.00 0.00 0.00 0.00 76.50 98.00 252.50 279.50 42.50 0.00 0.00 0.00 749.00
1959 0.00 0.00 0.00 0.00 0.00 37.50 230.00 68.00 19.00 0.00 0.00 0.00 354.50
1960 0.00 0.00 0.00 0.00 0.00 36.00 314.50 104.00 18.00 0.00 0.00 0.00 472.50
1961 0.00 0.00 0.00 0.00 0.00 122.00 215.50 279.00 1.50 0.00 0.00 0.00 618.00
1962 0.00 0.00 0.00 0.00 0.00 37.50 162.50 80.50 33.00 0.00 0.00 0.00 313.50
1963 0.00 0.00 0.00 0.00 7.00 51.00 91.00 156.00 110.00 0.50 0.00 0.00 415.50
1964 0.00 0.00 0.00 0.00 1.50 15.00 131.50 52.00 0.00 0.00 0.00 0.00 200.00
1965 0.00 0.00 0.00 0.00 1.50 21.00 192.50 156.00 0.00 0.00 0.00 0.00 371.00
1966 0.00 0.00 0.00 0.00 16.50 11.00 130.50 141.50 56.50 0.00 0.00 0.00 356.00
1967 0.00 0.00 0.00 0.00 0.00 55.50 182.00 295.50 83.50 0.00 0.00 0.00 616.50
1968 0.00 0.00 0.00 0.00 2.00 27.50 208.50 95.00 22.00 0.00 0.00 0.00 355.00
1969 0.00 0.00 0.00 0.00 6.50 95.50 116.50 108.00 38.50 0.00 0.00 0.00 365.00
1970 0.00 0.00 0.00 0.00 2.00 138.50 247.50 167.00 1.50 0.00 0.00 0.00 556.50
1971 0.00 0.00 0.00 0.00 8.50 17.00 211.50 300.00 8.00 0.00 0.00 0.00 545.00
1972 0.00 0.00 0.00 0.00 27.00 39.00 133.50 206.00 9.50 0.00 0.00 0.00 415.00
1973 0.00 0.00 0.00 0.00 29.50 65.50 210.50 173.00 37.00 0.00 0.00 0.00 515.50
1974 0.00 0.00 0.00 0.00 0.00 130.50 130.50 122.00 6.00 0.00 0.00 0.00 389.00
1975 0.00 0.00 0.00 0.00 0.00 5.00 251.50 51.00 19.00 0.00 0.00 0.00 326.50
1976 0.00 0.00 0.00 0.00 0.00 22.50 139.00 87.50 30.00 0.00 0.00 0.00 279.00
1977 0.00 0.00 0.00 17.00 1.50 68.50 121.50 249.00 0.00 0.00 0.00 0.00 457.50
1978 0.00 0.00 0.00 0.00 0.00 37.50 138.50 128.00 8.00 0.00 0.00 0.00 312.00
1979 0.00 0.00 0.00 0.00 0.50 69.00 210.50 158.00 36.50 0.00 0.00 0.00 474.50
1980 0.00 0.00 0.00 1.00 3.00 2.00 149.50 53.50 4.50 2.50 0.00 0.00 216.00
1981 0.00 0.00 0.00 0.00 0.00 8.00 78.00 207.50 56.00 0.00 0.00 0.00 349.50
1982 0.00 0.00 0.00 0.00 2.00 123.50 144.50 167.00 30.50 0.00 0.00 0.00 467.50
1983 0.00 0.00 0.00 0.00 44.50 24.50 73.50 228.50 1.00 0.00 0.00 0.00 372.00
1984 0.00 0.00 0.00 0.00 2.50 26.50 149.00 175.50 21.00 0.50 0.00 0.00 375.00
1985 0.00 0.00 0.00 0.00 13.00 33.00 308.50 64.50 0.00 0.00 0.00 0.00 419.00
1986 0.00 0.00 0.00 0.00 64.50 105.50 53.50 239.00 7.50 0.00 0.00 0.00 470.00
1987 0.00 0.00 0.00 7.50 18.50 90.00 104.50 91.00 50.50 0.50 0.00 0.00 362.50
1988 0.00 0.00 0.00 0.00 11.50 60.50 163.50 123.50 63.50 0.00 0.00 0.00 422.50
1989 0.00 0.00 0.00 0.00 0.00 46.00 140.00 74.50 7.00 0.00 0.00 0.00 267.50
1990 0.00 0.00 0.00 0.00 0.00 40.00 205.50 152.00 64.00 0.00 0.00 0.00 461.50
1991 0.00 0.00 0.00 0.00 0.00 0.00 131.00 179.50 17.00 0.00 0.00 0.00 327.50
1992 0.00 0.00 0.00 0.00 22.50 154.00 118.50 203.50 10.00 7.50 0.00 0.00 516.00
1993 0.00 0.00 0.00 0.00 33.00 26.00 10.00 61.00 31.00 0.00 0.00 0.00 161.00
1994 0.00 0.00 0.00 0.00 7.50 35.50 273.50 151.50 38.00 0.00 0.00 0.00 506.00
1995 0.00 0.00 0.00 0.00 13.00 28.00 112.00 56.50 36.00 0.00 0.00 0.00 245.50
1996 0.00 0.00 0.00 0.00 0.00 14.00 191.00 145.50 16.50 0.00 0.00 0.00 367.00
1997 0.00 0.00 0.00 0.00 13.50 8.00 116.00 200.00 26.00 5.50 0.00 0.00 369.00
1998 0.00 0.00 0.00 0.00 5.00 19.50 318.00 227.50 106.50 0.00 0.00 0.00 676.50
1999 0.00 0.00 0.00 0.00 6.50 38.00 114.00 202.00 12.00 0.00 0.00 0.00 372.50
2000 0.00 0.00 0.00 0.00 0.00 27.50 141.00 124.50 14.50 0.00 0.00 0.00 307.50
2001 0.00 0.00 0.00 0.00 26.50 18.00 141.50 209.00 50.50 0.00 0.00 0.00 445.50
2002 0.00 0.00 0.00 0.00 0.00 59.50 225.50 75.50 28.50 0.00 0.00 0.00 389.00
2003 0.00 0.00 0.00 0.00 11.00 54.00 259.00 165.00 63.50 2.00 0.00 0.00 554.50
2004 0.00 0.00 0.00 0.00 0.00 93.00 240.50 221.50 1.00 0.00 0.00 0.00 556.00
2005 0.00 0.00 0.00 0.00 12.00 30.00 170.50 167.50 10.00 0.00 0.00 0.00 390.00
2006 0.00 0.00 0.00 0.00 41.00 65.50 160.00 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 106.50
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.68 11.92 49.49 180.41 151.82 28.16 0.48 0.00 0.00 423.36
S.D. 0.00 0.00 0.00 2.30 17.12 37.54 65.84 63.23 25.50 1.51 0.00 0.00 119.08
SKEW 0.00 0.00 0.00 4.35 1.95 1.17 0.16 0.29 1.46 3.85 0.00 0.00 0.32
MAX 0.00 0.00 0.00 17.00 76.50 157.00 338.50 317.00 141.00 9.50 0.00 0.00 749.00
MIN 0.00 0.00 0.00 0.00 0.00 0.00 10.00 37.50 0.00 0.00 0.00 0.00 161.00
NO YRS 117 117 117 117 117 117 116 117 117 117 117 117 116