date! ,

Monthly Total Cooling Degree Days

(a vali)

Base Temperature = 65 F

File last updated on Apr 6, 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
1893 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
1894 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
1895 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
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 z 0.00 z 0.00
1897 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5.50 z 74.00 4.00 0.00 c 0.00 78.00
1898 0.00 0.00 0.00 0.00 0.00 50.50 109.50 26.00 43.00 0.00 0.00 0.00 229.00
1899 0.00 0.00 0.00 0.00 0.00 26.00 97.00 57.00 0.00 0.00 0.00 0.00 180.00
1900 0.00 0.00 j 0.00 y 0.00 9.00 80.00 49.00 208.00 39.50 0.00 0.00 0.00 385.50
1901 0.00 0.00 0.00 0.00 12.50 50.00 202.00 104.00 19.00 0.00 0.00 0.00 387.50
1902 0.00 0.00 0.00 0.00 13.00 10.00 112.50 40.00 0.00 0.00 0.00 0.00 175.50
1903 0.00 0.00 0.00 0.00 11.00 33.00 66.50 24.00 6.00 0.00 0.00 0.00 140.50
1904 0.00 0.00 0.00 u 0.00 d 0.50 23.00 38.00 36.50 0.00 0.00 0.00 0.00 98.00
1905 0.00 0.00 0.00 0.00 0.00 17.00 93.00 100.00 26.50 0.00 d 0.00 0.00 236.50
1906 0.00 0.00 0.00 0.00 6.50 29.00 103.50 123.50 70.50 0.00 0.00 b 0.00 333.00
1907 0.00 0.00 0.00 0.00 0.00 58.50 70.50 62.50 3.50 0.00 0.00 a 0.00 195.00
1908 0.00 0.00 0.00 0.00 0.00 43.50 121.00 58.00 73.00 1.00 0.00 0.00 296.50
1909 0.00 0.00 0.00 0.00 0.00 59.50 107.35 d 115.00 2.00 0.00 0.00 0.00 283.85
1910 0.00 z 0.00 0.00 z 0.00 z 0.00 187.50 119.00 41.00 6.00 1.50 0.00 0.00 355.00
1911 0.00 0.00 0.00 0.00 12.50 69.50 71.50 26.00 3.00 0.00 a 0.00 0.00 a 182.50
1912 0.00 0.00 0.00 a 0.00 0.00 a 55.50 98.17 a 13.00 52.50 1.50 0.00 0.00 a 220.67
1913 0.00 0.00 0.00 3.00 3.50 103.00 43.00 74.50 27.50 0.00 0.00 0.00 254.50
1914 0.00 0.00 0.00 0.00 20.00 21.50 170.50 64.50 20.50 5.50 0.00 0.00 302.50
1915 0.00 0.00 0.00 6.00 0.50 7.50 33.50 44.00 32.50 0.00 0.00 0.00 124.00
1916 0.00 0.00 0.00 0.00 0.00 2.50 259.00 134.00 1.00 0.00 0.00 0.00 a 396.50
1917 0.00 0.00 0.00 0.00 0.00 4.00 146.00 30.50 5.00 0.00 0.00 0.00 185.50
1918 0.00 0.00 0.00 0.00 14.50 27.50 98.50 84.50 0.00 0.00 0.00 0.00 225.00
1919 0.00 0.00 0.00 0.00 36.50 116.00 144.50 44.00 18.50 0.00 0.00 0.00 359.50
1920 0.00 0.00 0.00 0.00 1.00 39.00 65.50 62.50 22.50 0.00 0.00 0.00 190.50
1921 0.00 0.00 0.00 0.00 34.50 167.50 280.50 106.00 28.00 0.00 0.00 0.00 616.50
1922 0.00 0.00 0.00 0.00 7.50 68.00 77.50 125.50 54.50 17.00 0.00 0.00 350.00
1923 0.00 0.00 0.00 5.50 12.50 133.00 179.00 43.00 9.50 2.00 0.00 0.00 384.50
1924 0.00 0.00 0.00 0.00 0.00 6.50 71.00 47.00 0.50 3.00 0.00 0.00 a 128.00
1925 0.00 0.00 0.00 0.00 28.00 32.50 103.50 120.50 25.50 0.00 0.00 0.00 310.00
1926 0.00 0.00 0.00 a 0.00 6.50 17.50 92.50 46.00 0.00 0.00 0.00 0.00 162.50
1927 0.00 0.00 0.00 0.00 0.00 45.50 33.50 5.50 48.00 0.00 0.00 0.00 132.50
1928 0.00 0.00 0.00 0.00 12.00 7.00 68.00 73.00 1.00 0.00 0.00 0.00 161.00
1929 0.00 0.00 0.00 0.00 13.50 48.50 158.00 80.50 42.00 0.00 0.00 0.00 342.50
1930 0.00 0.00 0.00 0.00 5.50 40.00 157.00 123.50 18.21 b 13.00 0.00 0.00 357.21
1931 0.00 0.00 0.00 0.00 14.50 132.50 171.50 70.00 75.50 1.00 0.00 0.00 465.00
1932 0.00 0.00 0.00 0.00 13.50 65.00 154.50 93.00 4.50 0.00 0.00 0.00 a 330.50
1933 0.00 0.00 0.00 0.00 5.50 165.50 135.00 59.00 17.50 0.00 0.00 0.00 382.50
1934 0.00 0.00 0.00 1.73 d 53.50 42.41 a 97.00 42.50 0.00 0.00 0.00 0.00 237.14
1935 0.00 0.00 0.00 0.00 0.00 5.00 204.00 99.50 5.00 0.00 0.00 0.00 313.50
1936 0.00 0.00 0.00 0.00 15.00 17.00 244.00 99.00 29.50 0.00 0.00 0.00 404.50
1937 0.00 0.00 0.00 0.00 9.50 27.50 129.00 155.00 23.50 0.00 0.00 0.00 344.50
1938 0.00 0.00 0.00 0.00 0.00 35.50 63.00 125.50 0.50 1.00 0.00 0.00 225.50
1939 0.00 a 0.00 0.00 0.00 23.50 44.50 138.50 71.50 56.50 0.00 0.00 0.00 334.50
1940 0.00 0.00 0.00 0.00 5.50 32.00 124.50 83.50 50.00 0.00 0.00 0.00 295.50
1941 0.00 0.00 0.00 0.00 22.50 104.50 175.00 87.00 29.00 0.00 0.00 0.00 418.00
1942 0.00 0.00 0.00 1.50 3.00 26.50 75.50 82.50 12.50 0.00 0.00 0.00 201.50
1943 0.00 0.00 0.00 0.00 0.50 82.00 185.00 103.00 12.00 0.00 0.00 0.00 382.50
1944 0.00 0.00 0.00 0.00 34.00 66.50 99.50 115.50 5.00 0.00 0.00 0.00 320.50
1945 0.00 0.00 0.00 0.00 0.00 28.50 87.50 92.00 38.00 0.00 0.00 0.00 246.00
1946 0.00 0.00 0.00 0.00 3.00 51.00 126.50 58.50 15.00 0.00 0.00 0.00 254.00
1947 0.00 0.00 0.00 0.00 0.00 21.00 165.50 212.50 43.50 6.50 0.00 0.00 449.00
1948 0.00 0.00 0.00 0.00 8.00 26.50 116.00 96.00 52.00 0.00 0.00 0.00 298.50
1949 0.00 0.00 0.00 0.00 8.00 85.50 123.50 149.83 a 0.50 0.00 a 0.00 0.00 367.33
1950 0.00 0.00 0.00 0.00 a 3.00 49.00 52.50 43.00 1.55 a 0.00 a 0.00 0.00 149.05
1951 0.00 0.00 0.00 0.00 1.55 a 12.41 a 93.00 14.50 0.00 1.00 0.00 0.00 a 122.46
1952 0.00 c 0.00 0.00 10.00 16.00 68.00 107.00 42.37 a 34.50 0.00 0.00 0.00 277.87
1953 0.00 0.00 a 0.00 0.00 3.50 88.00 113.50 132.30 c 26.00 7.50 0.00 0.00 a 370.80
1954 0.00 0.00 0.00 0.00 0.00 a 66.00 95.50 42.50 8.50 0.00 0.00 b 0.00 212.50
1955 0.00 0.00 0.00 0.00 a 18.00 56.00 217.00 171.00 24.50 0.00 a 0.00 0.00 c 486.50
1956 0.00 0.00 0.00 0.00 a 2.00 83.00 26.87 a 42.50 6.00 2.14 b 0.00 0.00 162.50
1957 0.00 0.00 0.00 0.00 3.50 11.50 170.00 67.50 8.50 0.00 d 0.00 b 0.00 a 261.00
1958 0.00 0.00 0.00 0.00 8.27 a 13.50 60.00 103.50 12.93 a 0.00 b 0.00 0.00 198.20
1959 0.00 0.00 0.00 0.00 9.00 62.50 142.00 129.50 10.00 0.00 0.00 0.00 a 353.00
1960 0.00 0.00 0.00 0.00 0.00 16.00 115.00 59.50 l 40.34 a 0.00 a 0.00 0.00 171.34
1961 0.00 0.00 0.00 0.00 10.50 94.50 105.00 171.50 53.00 2.00 0.00 0.00 436.50
1962 0.00 0.00 0.00 0.00 13.00 39.00 41.00 77.50 4.00 4.00 0.00 0.00 178.50
1963 0.00 0.00 0.00 0.00 5.00 94.00 153.00 67.50 5.00 8.50 0.00 0.00 333.00
1964 0.00 0.00 0.00 0.00 38.50 69.00 189.00 62.50 7.50 0.00 0.00 0.00 366.50
1965 0.00 0.00 0.00 0.00 0.00 24.00 60.00 76.00 0.52 a 0.00 0.00 0.00 160.52
1966 0.00 0.00 0.00 0.00 4.00 93.50 217.50 67.50 19.00 0.00 0.00 0.00 401.50
1967 0.00 0.00 0.00 0.00 0.50 34.00 111.00 71.50 13.00 0.00 0.00 0.00 a 230.00
1968 0.00 0.00 0.00 0.00 0.00 29.50 114.18 a 84.00 8.50 6.00 0.00 0.00 242.18
1969 0.00 0.00 0.00 0.00 21.50 9.00 119.00 165.50 28.50 0.00 0.00 0.00 343.50
1970 0.00 0.00 0.00 0.00 8.50 86.38 a 195.50 119.50 52.50 1.50 0.00 0.00 463.88
1971 0.00 0.00 0.00 0.00 0.00 98.00 37.50 66.00 45.50 1.00 0.00 0.00 248.00
1972 0.00 0.00 0.00 0.00 60.50 48.50 75.00 106.50 0.00 0.00 0.00 0.00 290.50
1973 0.00 0.00 0.00 0.00 0.00 35.00 107.00 175.50 32.50 0.00 0.00 0.00 a 350.00
1974 0.00 0.00 a 0.00 0.00 6.00 56.00 232.50 53.00 0.00 0.50 0.00 0.00 348.00
1975 0.00 0.00 0.00 0.00 21.50 73.00 247.00 95.50 2.50 1.00 0.00 0.00 440.50
1976 0.00 a 0.00 0.00 b 0.00 2.00 103.50 154.00 154.50 45.00 0.00 0.00 0.00 459.00
1977 0.00 0.00 0.00 0.00 66.00 37.00 142.00 5.50 0.00 0.00 0.00 0.00 250.50
1978 0.00 0.00 0.00 0.00 33.50 62.50 108.50 104.00 77.50 0.00 0.00 0.00 386.00
1979 0.00 0.00 0.00 0.00 a 4.00 17.50 126.00 56.50 31.00 0.00 a 0.00 0.00 235.00
1980 0.00 0.00 0.00 7.50 47.00 58.97 a 167.40 a 78.00 12.00 0.00 0.00 0.00 370.87
1981 0.00 0.00 0.00 0.00 1.00 20.50 114.00 82.50 8.50 0.00 0.00 0.00 226.50
1982 0.00 0.00 0.00 0.00 5.50 4.00 80.00 40.50 12.00 0.00 0.00 0.00 142.00
1983 0.00 0.00 0.00 0.00 0.00 79.50 248.00 229.00 68.50 0.00 0.00 0.00 625.00
1984 0.00 0.00 0.00 0.00 3.00 53.00 142.00 211.50 9.00 0.00 0.00 0.00 418.50
1985 0.00 0.00 0.00 0.50 5.50 24.00 104.00 34.00 23.50 0.00 0.00 0.00 191.50
1986 0.00 0.00 0.00 0.00 29.50 64.00 152.00 54.00 9.50 0.00 0.00 0.00 309.00
1987 0.00 0.00 0.00 0.00 34.00 136.00 207.50 99.50 10.00 0.00 0.00 0.00 487.00
1988 0.00 0.00 b 0.00 0.00 49.00 136.50 248.00 158.50 9.83 a 0.00 0.00 0.00 601.83
1989 0.00 0.00 0.00 0.00 12.00 51.50 209.50 117.00 20.50 3.00 0.00 0.00 413.50
1990 0.00 0.00 0.00 11.00 0.00 76.50 103.50 98.50 26.50 0.00 0.00 o 0.00 j 316.00
1991 0.00 a 0.00 b 0.00 n 0.50 45.00 99.00 102.00 154.50 14.00 0.00 n 0.00 n 0.00 k 415.00
1992 0.00 a 0.00 l 0.00 z 0.00 m 29.50 33.50 15.50 38.00 l 0.00 k 0.00 p 0.00 p 0.00 m 78.50
1993 0.00 m 0.00 o 0.00 m 0.00 3.00 38.50 69.50 118.00 1.00 0.00 k 0.00 m 0.00 l 230.00
1994 0.00 p 0.00 a 0.00 a 0.00 26.00 77.00 72.00 52.18 a 20.00 0.00 l 0.00 l 0.00 m 247.18
1995 0.00 b 0.00 m 0.00 i 0.00 n 1.50 184.50 116.00 117.00 27.50 4.00 l 0.00 q 0.00 p 446.50
1996 0.00 b 0.00 a 0.00 k 0.00 1.50 85.50 71.50 107.00 49.00 0.00 0.00 o 0.00 z 314.50
1997 0.00 p 0.00 l 0.00 l 0.00 1.50 81.50 110.00 55.50 14.50 0.00 k 0.00 o 0.00 j 263.00
1998 0.00 l 0.00 i 0.00 i 0.00 a 27.00 51.50 119.00 113.50 50.00 0.00 l 0.00 m 0.00 l 361.00
1999 0.00 m 0.00 j 0.00 h 0.00 h 21.00 f 85.00 155.00 f 55.50 h 35.36 b 0.00 l 0.00 k 0.00 j 120.36
2000 0.00 k 0.00 k 0.00 n 0.00 j 7.48 b 17.50 128.13 a 90.93 a 10.96 d 0.00 k 0.00 k 0.00 n 255.01
2001 0.00 j 0.00 j 0.00 i 1.50 k 0.00 y 91.50 153.00 187.60 b 22.50 g 0.00 i 0.00 p 0.00 o 432.10
2002 0.00 k 0.00 0.00 k 0.00 12.50 104.50 217.00 74.00 76.00 0.00 0.00 o 0.00 z 484.00
2003 0.00 l 0.00 z 0.00 j 0.00 k 1.50 f 57.00 147.00 182.00 46.50 6.00 i 0.00 m 0.00 j 432.50
2004 0.00 l 0.00 j 0.00 i 0.00 h 0.00 e 28.00 99.00 19.50 42.50 0.00 k 0.00 k 0.00 n 189.00
2005 0.00 l 0.00 k 0.00 h 2.00 n 0.00 79.00 183.50 109.50 28.80 e 0.00 k 0.00 n 0.00 m 400.80
2006 0.00 o 0.00 i 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 j 0.00 m 0.00 k 0.00
2007 0.00 k 0.00 i 0.00 i 0.00 m 20.50 122.00 187.50 98.50 35.17 a 0.00 i 0.00 m 0.00 l 463.67
2008 0.00 k 0.00 i 0.00 k 0.00 i 0.00 f 30.50 101.00 85.00 7.00 g 0.00 0.00 j 0.00 d 216.50
2009 0.00 a 0.00 h 0.00 i 0.00 j 0.00 z 62.50 0.00 z 63.50 41.50 g 0.00 h 0.00 p 0.00 k 126.00
2010 0.00 m 0.00 i 0.00 i 0.00 h 17.88 e 38.50 152.50 159.00 1.50 0.00 k 0.00 j 0.00 k 369.38
2011 0.00 r 0.00 l 0.00 h 0.00 g 0.00 e 35.69 a 234.10 b 103.00 f 31.20 e 2.50 l 0.00 c 0.00 l 300.99
2012 0.00 k 0.00 j 0.00 j 0.00 l 12.18 c 92.59 a 275.50 108.00 36.21 a 0.00 e 0.00 d 0.00 n 524.47
2013 0.00 o 0.00 o 0.00 q 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 0.48 11.31 57.61 127.78 90.05 23.17 0.97 0.00 0.00 302.92
S.D. 0.00 0.00 0.00 1.85 14.39 39.83 58.99 48.11 21.08 2.64 0.00 0.00 113.80
SKEW 0.00 0.00 0.00 4.33 1.72 1.05 0.55 0.69 0.86 3.90 0.00 0.00 0.55
MAX 0.00 0.00 0.00 11.00 66.00 187.50 280.50 229.00 77.50 17.00 0.00 0.00 625.00
MIN 0.00 0.00 0.00 0.00 0.00 2.50 15.50 5.50 0.00 0.00 0.00 0.00 122.46
NO YRS 97 96 91 99 109 114 112 110 111 98 95 94 88