date! ,

Monthly Total Cooling Degree Days

(a vali)

Base Temperature = 65 F

File last updated on Apr 4, 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
1898 0.00 z 0.00 z 0.00 z 0.00 z 17.50 0.00 z 128.00 64.00 10.50 0.00 z 0.00 z 0.00 z 220.00
1899 0.00 z 0.00 z 0.00 z 0.00 4.00 68.00 151.50 61.00 4.50 0.00 0.00 0.00 289.00
1900 0.00 0.00 0.00 0.00 35.50 142.50 56.50 135.00 19.00 0.00 0.00 0.00 388.50
1901 0.00 0.00 0.00 0.00 47.00 45.00 131.00 61.00 15.50 0.00 0.00 0.00 299.50
1902 0.00 0.00 z 0.00 z 0.00 27.50 7.50 112.50 39.00 0.00 0.00 0.00 0.00 186.50
1903 0.00 0.00 0.00 0.00 14.50 50.50 82.67 a 29.00 0.00 c 0.00 a 0.00 0.00 a 176.67
1904 0.00 a 0.00 0.00 a 0.00 c 8.27 a 36.72 a 36.68 a 15.50 a 0.00 a 0.00 a 0.00 a 0.00 a 97.17
1905 0.00 a 0.00 d 0.00 c 0.00 a 0.00 20.50 60.45 a 68.00 16.50 0.00 a 0.00 a 0.00 a 165.45
1906 0.00 a 0.00 a 0.00 0.00 6.50 33.62 a 87.32 a 100.50 36.72 a 0.00 c 0.00 b 0.00 k 264.66
1907 0.00 g 0.00 a 0.00 a 0.00 0.00 70.50 65.50 63.50 6.43 b 0.00 b 0.00 a 0.00 a 205.93
1908 0.00 a 0.00 a 0.00 0.00 1.55 a 27.50 114.70 a 0.00 z 35.00 0.00 0.00 0.00 178.75
1909 0.00 0.00 0.00 a 0.00 2.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 i 0.00 e 2.00
1910 0.00 a 0.00 0.00 0.00 0.50 217.00 101.50 19.50 0.00 0.00 z 0.00 0.00 338.50
1911 0.00 0.00 0.00 2.00 8.00 63.50 45.50 37.00 3.00 0.00 0.00 0.00 159.00
1912 0.00 0.00 0.00 0.00 7.50 66.50 108.50 15.50 19.00 0.00 0.00 0.00 217.00
1913 0.00 a 0.00 0.00 0.50 19.50 108.00 54.50 100.00 26.00 0.00 0.00 0.00 308.50
1914 0.00 0.00 0.00 0.00 24.00 55.50 245.50 54.50 20.50 16.00 0.00 0.00 416.00
1915 0.00 0.00 0.00 0.00 3.00 22.50 57.00 100.00 53.00 0.00 0.00 0.00 235.50
1916 0.00 0.00 0.00 0.00 0.00 20.50 352.50 130.50 25.00 0.00 0.00 0.00 528.50
1917 0.00 0.00 0.00 0.00 8.50 32.00 251.50 105.50 32.00 0.00 0.00 0.00 429.50
1918 0.00 0.00 0.00 0.00 14.50 55.00 76.50 85.00 0.00 0.00 0.00 0.00 231.00
1919 0.00 0.00 0.00 0.00 82.50 157.00 242.50 194.00 10.50 0.00 0.00 0.00 686.50
1920 0.00 0.00 0.00 0.00 7.48 b 60.00 102.00 187.00 38.50 0.00 0.00 0.00 394.98
1921 0.00 0.00 0.00 0.00 17.00 151.50 213.50 66.00 10.86 a 0.00 0.00 a 0.00 458.86
1922 0.00 a 0.00 a 0.00 0.00 34.50 86.50 106.00 160.00 27.00 3.00 0.00 0.00 417.00
1923 0.00 0.00 0.00 0.00 48.00 153.50 201.50 20.00 8.28 a 0.00 a 0.00 0.00 431.28
1924 0.00 0.00 0.00 0.00 2.00 11.00 51.00 40.50 0.00 a 0.00 0.00 0.00 104.50
1925 0.00 0.00 0.00 0.00 24.00 26.00 108.00 71.50 22.00 0.00 0.00 a 0.00 251.50
1926 0.00 0.00 0.00 3.75 b 28.50 0.00 101.00 43.00 6.50 0.00 0.00 0.00 c 182.75
1927 0.00 0.00 0.00 0.00 0.00 36.50 78.03 b 49.60 a 51.50 0.00 0.00 a 0.00 215.63
1928 0.00 0.00 0.00 0.00 13.50 4.50 27.00 19.00 0.00 0.00 0.00 0.00 64.00
1929 0.00 0.00 0.00 0.00 0.00 36.00 67.50 45.50 22.00 0.00 0.00 0.00 171.00
1930 0.00 0.00 0.00 0.00 1.50 45.00 a 148.00 150.50 22.50 0.00 0.00 0.00 367.50
1931 0.00 a 0.00 0.00 0.00 5.50 122.00 135.00 124.50 20.50 0.00 0.00 0.00 407.50
1932 0.00 0.00 0.00 0.00 15.00 124.50 140.50 107.50 14.50 0.00 0.00 0.00 c 402.00
1933 0.00 0.00 0.00 0.00 a 11.07 c 154.00 136.50 129.50 8.79 a 0.00 0.00 0.00 439.86
1934 0.00 0.00 a 0.00 0.00 73.88 a 47.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 121.38
1935 0.00 z 0.00 z 0.00 z 0.00 z 10.00 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1936 0.00 0.00 0.00 0.00 54.50 90.50 371.50 135.37 a 36.50 0.00 0.00 0.00 688.37
1937 0.00 0.00 0.00 0.00 21.00 64.50 142.00 177.00 15.50 0.00 0.00 0.00 420.00
1938 0.00 0.00 0.00 0.00 0.00 49.50 131.00 182.50 22.00 1.50 0.00 0.00 386.50
1939 0.00 0.00 0.00 0.00 48.00 45.50 262.50 153.00 42.00 0.00 a 0.00 0.00 551.00
1940 0.00 z 0.00 z 0.00 0.00 12.00 22.50 171.50 150.00 66.50 1.50 0.00 0.00 424.00
1941 0.00 0.00 0.00 0.50 40.50 122.00 213.00 109.00 28.00 0.00 0.00 0.00 513.00
1942 0.00 0.00 0.00 0.00 0.00 27.50 80.00 78.50 30.00 1.00 0.00 0.00 217.00
1943 0.00 0.00 0.00 0.00 3.50 47.50 200.50 74.50 7.00 0.00 0.00 0.00 333.00
1944 0.00 0.00 0.00 0.00 0.00 z 43.00 110.50 70.50 0.00 0.00 0.00 0.00 224.00
1945 0.00 0.00 0.00 0.00 0.00 29.00 104.50 74.50 31.00 0.00 0.00 0.00 239.00
1946 0.00 0.00 0.00 0.00 21.00 34.50 128.00 71.00 30.50 0.00 0.00 0.00 285.00
1947 0.00 0.00 0.00 0.00 0.00 10.50 155.50 156.50 32.00 0.00 0.00 0.00 354.50
1948 0.00 0.00 0.00 0.00 14.00 36.50 131.00 109.00 50.00 0.00 0.00 0.00 340.50
1949 0.00 0.00 0.00 5.50 13.00 50.00 109.50 191.50 7.00 0.00 0.00 0.00 376.50
1950 0.00 0.00 0.00 0.00 3.50 f 33.50 75.50 38.00 28.00 0.00 z 0.00 a 0.00 a 175.00
1951 0.00 b 0.00 0.00 0.00 a 12.00 9.31 a 138.98 a 24.80 a 0.00 0.00 0.00 0.00 185.09
1952 0.00 0.00 b 0.00 21.00 15.00 64.00 164.50 136.00 77.59 a 0.00 0.00 b 0.00 478.09
1953 0.00 0.00 a 0.00 0.00 17.00 67.76 a 121.50 171.50 29.00 5.00 0.00 0.00 411.76
1954 0.00 h 0.00 0.00 0.00 7.00 62.00 178.00 93.50 18.50 0.00 e 0.00 a 0.00 359.00
1955 0.00 a 0.00 c 0.00 0.50 35.50 73.00 281.21 c 211.66 b 36.72 a 0.00 c 0.00 0.00 638.59
1956 0.00 0.00 e 0.00 b 0.00 0.00 b 161.67 c 67.00 i 105.00 4.50 4.13 a 0.00 a 0.00 c 275.30
1957 0.00 a 0.00 e 0.00 a 0.00 10.00 g 2.00 206.15 a 107.47 a 14.50 3.00 0.00 0.00 a 333.12
1958 0.00 a 0.00 0.00 0.00 a 11.00 11.11 c 78.50 98.00 15.00 0.00 i 0.00 a 0.00 a 213.61
1959 0.00 0.00 z 0.00 0.00 5.00 84.00 153.50 147.50 11.50 0.00 0.00 0.00 401.50
1960 0.00 0.00 a 0.00 a 0.00 a 14.50 34.00 141.00 134.50 50.69 a 1.50 0.00 0.00 376.19
1961 0.00 c 0.00 0.00 0.00 a 17.50 133.00 112.50 203.50 14.00 2.58 a 0.00 a 0.00 483.08
1962 0.00 0.00 0.00 0.00 0.00 l 88.50 75.50 106.50 1.55 a 1.50 0.00 0.00 273.55
1963 0.00 0.00 0.00 0.00 8.50 152.50 215.00 129.00 33.00 5.50 0.00 0.00 543.50
1964 0.00 0.00 0.00 0.00 24.50 66.50 197.00 74.00 18.00 0.00 0.00 0.00 z 380.00
1965 0.00 0.00 0.00 0.00 0.00 z 55.00 97.50 113.00 0.00 z 0.00 z 0.00 z 0.00 z 265.50
1966 0.00 b 0.00 z 0.00 z 0.00 z 0.00 z 110.40 e 181.00 69.00 28.50 0.00 0.00 0.00 c 388.90
1967 0.00 a 0.00 a 0.00 0.00 c 10.50 38.65 d 131.75 c 85.25 c 39.11 b 0.00 f 0.00 c 0.00 c 305.26
1968 0.00 g 0.00 0.00 e 0.00 i 4.13 a 10.00 j 64.50 j 26.23 e 23.40 e 0.00 d 0.00 c 0.00 d 53.76
1969 0.00 0.00 a 0.00 c 0.00 24.80 a 0.00 h 88.23 e 217.00 39.83 a 0.00 0.00 h 0.00 b 369.86
1970 0.00 z 0.00 b 0.00 z 0.00 f 0.00 d 71.50 i 0.00 z 69.50 j 40.20 e 0.00 b 0.00 a 0.00 d 40.20
1971 0.00 b 0.00 c 0.00 0.00 c 0.00 f 71.90 a 37.00 f 110.71 c 37.24 a 0.00 0.00 e 0.00 h 219.85
1972 0.00 e 0.00 a 0.00 e 0.00 b 21.50 l 85.56 c 47.50 138.00 4.00 0.00 0.00 0.00 275.06
1973 0.00 0.00 0.00 0.00 a 1.00 72.00 68.50 142.50 20.00 c 0.00 0.00 0.00 304.00
1974 0.00 0.00 0.00 1.50 0.00 83.00 242.50 41.50 1.50 0.00 0.00 0.00 370.00
1975 0.00 b 0.00 0.00 0.00 1.50 64.50 204.00 70.50 1.50 0.00 0.00 0.00 342.00
1976 0.00 0.00 0.00 d 0.00 5.50 109.50 98.00 120.26 b 0.00 z 0.00 z 0.00 0.00 333.26
1977 0.00 0.00 d 0.00 0.00 a 118.00 25.00 88.00 0.00 0.50 0.00 0.00 0.00 a 231.50
1978 0.00 c 0.00 0.00 0.00 32.50 48.33 c 84.96 d 66.02 d 54.50 0.00 a 0.00 0.00 286.31
1979 0.00 0.00 0.00 0.00 6.00 45.50 155.50 19.63 a 11.00 0.00 0.00 0.00 237.63
1980 0.00 0.00 0.00 5.00 113.00 49.50 119.19 b 27.12 c 17.00 0.00 0.00 0.00 330.81
1981 0.00 0.00 0.00 0.00 7.23 a 9.31 a 106.43 a 102.96 c 6.50 0.00 0.00 0.00 232.44
1982 0.00 0.00 0.00 0.00 8.50 0.50 67.00 66.00 32.50 0.00 0.00 0.00 174.50
1983 0.00 0.00 0.00 0.00 0.00 52.50 234.00 218.50 47.50 0.00 0.00 0.00 552.50
1984 0.00 0.00 0.00 0.00 13.50 43.00 73.50 141.00 0.00 0.00 0.00 0.00 271.00
1985 0.00 0.00 0.00 7.50 13.50 11.50 57.50 27.50 0.00 0.00 0.00 0.00 117.50
1986 0.00 0.00 0.00 0.00 45.50 52.50 103.00 43.50 0.00 0.00 0.00 0.00 244.50
1987 0.00 0.00 0.00 3.50 25.83 a 89.50 109.00 60.50 7.50 0.00 0.00 0.00 295.83
1988 0.00 0.00 0.00 0.00 64.50 213.00 153.50 108.00 0.00 0.00 0.00 0.00 539.00
1989 0.00 0.00 b 0.00 0.00 23.50 28.50 184.50 137.00 10.00 2.50 0.00 0.00 386.00
1990 0.00 0.00 0.00 9.00 4.50 72.00 84.50 112.50 19.00 0.00 0.00 0.00 301.50
1991 0.00 0.00 0.00 0.50 61.00 97.50 97.50 150.00 7.00 0.00 0.00 0.00 413.50
1992 0.00 0.00 0.00 0.00 35.00 30.00 5.00 37.50 2.00 2.00 0.00 0.00 111.50
1993 0.00 0.00 0.00 0.00 14.50 43.00 35.50 54.00 0.00 0.00 0.00 0.00 147.00
1994 0.00 0.00 0.00 0.00 18.00 42.00 37.00 48.00 17.50 0.00 0.00 0.00 162.50
1995 0.00 0.00 0.00 0.00 14.50 198.50 98.50 89.00 12.50 0.00 0.00 0.00 413.00
1996 0.00 0.00 0.00 0.00 1.00 118.00 82.00 88.00 30.50 0.00 0.00 0.00 319.50
1997 0.00 0.00 0.00 0.00 3.00 91.00 128.00 81.50 12.50 0.00 0.00 0.00 316.00
1998 0.00 0.00 0.00 0.00 12.00 34.00 126.50 120.50 23.00 0.00 0.00 0.00 316.00
1999 0.00 0.00 0.00 0.00 15.00 48.00 121.86 b 57.00 6.72 a 0.00 0.00 0.00 248.59
2000 0.00 0.00 0.00 0.00 1.50 18.10 a 137.50 105.50 1.50 0.00 0.00 0.00 264.10
2001 0.00 0.00 0.00 0.00 3.00 51.50 85.00 i 127.74 b 32.07 a 0.00 0.00 0.00 214.31
2002 0.00 0.00 0.00 0.00 9.50 100.50 187.50 73.50 44.50 0.00 0.00 0.00 415.50
2003 0.00 0.00 0.00 0.00 7.50 40.00 104.00 197.00 30.50 1.50 0.00 0.00 380.50
2004 0.00 0.00 0.00 0.00 0.00 14.50 87.50 1.15 d 26.00 0.00 0.00 0.00 129.15
2005 0.00 0.00 0.00 0.00 6.50 70.00 160.00 80.50 30.00 0.00 0.00 0.00 347.00
2006 0.00 0.00 0.00 0.00 24.00 62.00 199.00 61.50 11.50 0.00 0.00 0.00 358.00
2007 0.00 0.00 z 0.00 0.00 2.50 80.00 166.00 53.00 15.50 0.00 0.00 0.00 317.00
2008 0.00 0.00 0.00 0.00 0.00 16.50 58.00 64.50 0.00 z 0.00 0.00 0.00 c 139.00
2009 0.00 0.00 0.00 0.00 0.00 70.50 25.00 37.00 45.50 0.00 0.00 0.00 178.00
2010 0.00 0.00 0.00 0.00 18.00 37.00 126.50 139.00 0.00 0.00 0.00 0.00 320.50
2011 0.00 c 0.00 0.00 0.00 1.50 23.00 170.50 b 97.13 a 20.00 7.75 a 0.00 0.00 a 319.88
2012 0.00 a 0.00 0.00 a 0.00 a 5.68 a 62.00 199.50 79.64 b 13.00 0.00 0.00 0.00 a 359.82
2013 0.00 a 0.00 a 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 0.55 16.85 62.87 128.60 93.75 19.81 0.57 0.00 0.00 327.77
S.D. 0.00 0.00 0.00 2.41 21.72 45.99 66.62 52.15 16.54 1.96 0.00 0.00 134.77
SKEW 0.00 0.00 0.00 6.41 2.47 1.26 1.01 0.44 0.83 5.52 0.00 0.00 0.40
MAX 0.00 0.00 0.00 21.00 118.00 217.00 371.50 218.50 77.59 16.00 0.00 0.00 688.37
MIN 0.00 0.00 0.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 0.00 0.00 64.00
NO YRS 108 108 110 110 106 109 107 110 109 105 109 108 83