date! ,

Monthly Total Cooling Degree Days

(a vali)

Base Temperature = 65 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201210
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
1915 0.00 0.00 0.00 0.50 1.50 14.50 27.00 10.00 12.50 0.00 0.00 a 0.00 66.00
1916 0.00 0.00 0.00 0.00 0.50 3.50 226.50 127.50 20.50 1.00 0.00 0.00 379.50
1917 0.00 0.00 0.00 0.00 0.00 10.50 122.00 24.00 0.00 0.00 0.00 0.00 156.50
1918 0.00 z 0.00 0.00 b 0.00 22.50 22.00 74.00 60.00 2.50 0.00 0.00 0.00 181.00
1919 0.00 0.00 0.00 0.00 17.00 101.50 89.50 45.00 27.50 0.00 0.00 0.00 a 280.50
1920 0.00 a 0.00 0.00 0.00 1.00 80.00 34.50 32.50 40.50 0.00 0.00 0.00 188.50
1921 0.00 0.00 0.00 6.00 42.37 a 126.00 212.50 45.00 28.39 b 0.00 0.00 0.00 460.26
1922 0.00 d 0.00 m 0.00 0.00 21.50 48.50 39.00 91.00 74.50 6.00 0.00 0.00 280.50
1923 0.00 c 0.00 0.00 2.50 1.66 c 108.00 141.00 22.73 a 43.50 0.00 0.00 z 0.00 z 319.39
1924 0.00 z 0.00 k 0.00 0.00 a 0.00 6.72 a 65.50 41.33 d 0.00 0.00 b 0.00 e 0.00 113.56
1925 0.00 z 0.00 0.00 0.00 14.00 54.50 65.50 72.33 a 39.11 b 0.00 0.00 0.00 245.44
1926 0.00 0.00 a 0.00 0.00 3.50 5.50 47.00 15.50 e 0.00 a 0.00 0.00 0.00 71.50
1927 0.00 a 0.00 a 0.00 0.00 0.00 30.00 35.50 0.50 48.50 0.00 0.00 0.00 114.50
1928 0.00 e 0.00 0.00 0.00 0.50 2.07 a 74.50 67.50 0.00 1.50 0.00 0.00 146.07
1929 0.00 0.00 0.00 0.00 22.50 28.00 83.00 32.00 37.00 0.00 0.00 0.00 b 202.50
1930 0.00 a 0.00 0.00 0.00 a 20.00 36.50 113.50 98.50 34.14 a 8.78 a 0.00 0.00 311.42
1931 0.00 0.00 0.00 0.00 15.00 114.50 166.50 38.00 67.00 2.50 0.00 0.00 403.50
1932 0.00 0.00 0.00 0.00 9.00 40.00 113.50 47.50 0.00 0.00 0.00 0.00 b 210.00
1933 0.00 0.00 0.00 0.00 5.00 155.36 b 147.25 a 54.00 25.00 0.00 0.00 0.00 386.61
1934 0.00 0.00 0.00 a 2.50 44.00 68.00 119.02 c 73.00 1.00 0.00 0.00 0.00 307.52
1935 0.00 c 0.00 a 0.00 0.00 0.00 5.00 189.00 77.50 7.00 0.00 a 0.00 0.00 a 278.50
1936 0.00 0.00 0.00 0.00 10.16 b 11.50 194.27 a 77.50 30.00 0.00 0.00 0.00 323.42
1937 0.00 0.00 0.00 0.00 15.50 43.45 a 151.50 133.50 36.50 0.00 0.00 0.00 z 380.45
1938 0.00 a 0.00 0.00 0.00 0.50 35.50 74.50 106.50 2.50 1.00 0.00 0.00 220.50
1939 0.00 0.00 0.00 d 0.00 16.02 a 52.50 100.50 46.00 37.00 0.00 0.00 0.00 a 252.02
1940 0.00 0.00 0.00 0.00 5.17 a 35.17 a 120.00 63.00 29.50 0.00 0.00 0.00 252.84
1941 0.00 0.00 0.00 2.00 17.50 59.50 146.00 54.50 23.28 a 0.00 0.00 a 0.00 302.78
1942 0.00 0.00 0.00 a 0.00 0.00 f 37.00 56.00 38.50 13.00 0.00 0.00 0.00 144.50
1943 0.00 0.00 0.00 0.00 7.00 93.50 127.10 a 71.50 5.00 0.00 a 0.00 0.00 304.10
1944 0.00 a 0.00 0.00 0.00 a 19.00 63.00 58.00 70.00 6.00 0.00 a 0.00 0.00 216.00
1945 0.00 0.00 0.00 0.00 0.00 9.50 43.50 35.65 a 21.50 0.00 0.00 0.00 a 110.15
1946 0.00 a 0.00 0.00 0.00 0.00 44.50 93.00 38.50 6.50 0.00 0.00 0.00 182.50
1947 0.00 0.00 a 0.00 0.00 0.00 19.00 71.50 186.50 25.50 0.00 0.00 0.00 302.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 15.50 102.00 93.00 25.50 0.00 0.00 0.00 236.00
1949 0.00 0.00 0.00 0.00 21.50 85.50 141.00 106.00 0.00 0.00 0.00 0.00 354.00
1950 0.00 0.00 a 0.00 0.00 6.50 57.00 24.50 22.00 0.00 1.00 f 0.00 a 0.00 110.00
1951 0.00 0.00 0.00 0.00 13.50 4.00 70.00 25.83 a 0.00 a 0.00 a 0.00 a 0.00 c 113.33
1952 0.00 a 0.00 a 0.00 a 15.00 8.00 36.50 j 68.50 k 31.00 b 25.71 b 0.00 a 0.00 a 0.00 a 79.71
1953 0.00 c 0.00 a 0.00 0.00 d 5.50 46.50 55.80 a 61.50 33.50 5.00 0.00 0.00 a 207.80
1954 0.00 0.00 0.00 0.00 a 1.00 66.00 83.00 21.50 0.00 0.00 0.00 0.00 171.50
1955 0.00 0.00 0.00 0.00 11.50 17.00 176.00 136.50 18.00 0.00 a 0.00 q 0.00 359.00
1956 0.00 0.00 0.00 0.00 6.20 a 79.00 29.50 23.50 1.50 0.52 a 0.00 0.00 a 140.22
1957 0.00 0.00 0.00 0.00 0.00 a 28.45 a 104.50 38.00 17.00 0.00 0.00 0.00 187.95
1958 0.00 a 0.00 0.00 0.00 0.00 8.50 30.50 31.00 5.50 0.00 0.00 0.00 75.50
1959 0.00 0.00 a 0.00 0.00 14.50 46.50 52.00 108.50 24.00 0.00 0.00 0.00 245.50
1960 0.00 0.00 0.00 0.00 0.00 6.50 43.50 54.50 54.50 0.00 0.00 0.00 159.00
1961 0.00 0.00 0.00 0.00 0.00 41.50 49.50 76.50 43.00 0.00 0.00 0.00 210.50
1962 0.00 0.00 0.00 0.00 30.00 14.50 16.00 23.00 0.00 4.50 0.00 0.00 88.00
1963 0.00 0.00 0.00 0.00 3.00 56.50 96.50 36.50 0.50 1.00 0.00 z 0.00 194.00
1964 0.00 0.00 0.00 0.00 17.57 a 50.50 103.00 46.50 7.50 0.00 0.00 0.00 225.07
1965 0.00 0.00 0.00 0.00 6.50 5.50 26.00 27.00 0.00 0.00 0.00 0.00 a 65.00
1966 0.00 0.00 0.00 0.00 1.50 59.50 140.50 23.00 14.00 0.00 0.00 0.00 238.50
1967 0.00 0.00 0.00 0.00 1.50 19.00 58.50 25.00 0.00 0.00 0.00 b 0.00 104.00
1968 0.00 0.00 0.00 0.00 0.00 54.00 85.50 78.00 1.50 8.00 0.00 0.00 227.00
1969 0.00 0.00 0.00 0.00 a 16.50 8.50 57.50 64.50 11.00 0.00 0.00 0.00 158.00
1970 0.00 0.00 0.00 0.00 8.50 69.50 146.50 55.00 18.00 0.00 0.00 0.00 297.50
1971 0.00 0.00 0.00 0.00 0.00 91.50 24.28 a 24.50 29.50 5.50 0.00 0.00 175.28
1972 0.00 0.00 0.00 0.00 18.00 11.50 68.00 68.00 0.00 0.00 0.00 0.00 165.50
1973 0.00 0.00 0.00 0.00 0.00 32.50 73.00 0.00 z 29.50 2.00 0.00 0.00 137.00
1974 0.00 0.00 0.00 0.00 4.50 9.50 123.50 25.50 0.00 0.00 0.00 0.00 163.00
1975 0.00 0.00 0.00 0.00 a 26.50 46.50 138.00 40.50 0.00 0.00 0.00 0.00 251.50
1976 0.00 0.00 0.00 3.00 0.00 52.00 95.50 95.00 13.80 e 0.00 0.00 0.00 259.30
1977 0.00 0.00 0.00 3.00 35.00 19.00 116.25 a 18.50 0.00 0.00 b 0.00 0.00 191.75
1978 0.00 0.00 0.00 0.00 25.00 25.86 a 64.50 64.00 48.50 0.00 b 0.00 z 0.00 227.86
1979 0.00 0.00 0.00 0.00 0.00 14.00 75.00 21.50 15.50 0.00 c 0.00 z 0.00 a 126.00
1980 0.00 a 0.00 0.00 1.00 16.50 26.00 100.50 46.00 1.00 0.00 0.00 0.00 191.00
1981 0.00 0.00 0.00 b 0.00 0.00 14.50 69.50 51.50 2.00 0.00 a 0.00 0.00 137.50
1982 0.00 0.00 0.00 0.00 9.00 0.00 z 0.00 z 49.00 14.00 0.00 0.00 0.00 72.00
1983 0.00 0.00 0.00 0.00 0.00 46.00 177.00 115.50 32.00 0.00 0.00 0.00 b 370.50
1984 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 104.00 2.00 0.00 z 0.00 z 0.00 z 106.00
1985 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
1986 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 123.50 23.00 10.00 0.00 0.00 0.00 156.50
1987 0.00 0.00 0.00 5.50 14.50 83.00 155.50 76.00 11.00 0.00 0.00 0.00 345.50
1988 0.00 0.00 0.00 0.00 33.50 82.50 155.00 133.00 4.00 0.00 0.00 0.00 408.00
1989 0.00 0.00 0.00 0.00 2.50 28.50 120.00 58.50 0.00 z 0.00 z 0.00 0.00 209.50
1990 0.00 0.00 0.00 15.50 0.00 33.50 49.00 49.50 19.00 0.00 0.00 0.00 166.50
1991 0.00 0.00 0.00 0.00 33.00 74.00 71.00 74.00 12.50 0.00 0.00 0.00 264.50
1992 0.00 0.00 0.00 0.00 12.50 16.50 5.50 25.50 1.00 0.00 0.00 0.00 61.00
1993 0.00 0.00 0.00 0.00 8.00 15.00 49.00 62.00 0.00 0.00 0.00 0.00 134.00
1994 0.00 0.00 0.00 0.00 6.50 64.00 52.00 33.50 12.00 0.00 0.00 0.00 168.00
1995 0.00 0.00 0.00 0.00 0.00 103.00 99.50 127.50 10.00 3.00 0.00 0.00 343.00
1996 0.00 0.00 0.00 0.00 5.50 59.50 35.00 54.50 30.00 0.00 0.00 0.00 184.50
1997 0.00 0.00 0.00 0.00 0.00 53.00 108.50 28.00 9.50 0.00 0.00 0.00 199.00
1998 0.00 0.00 0.00 0.00 22.00 47.00 76.50 85.00 55.50 0.00 0.00 0.00 286.00
1999 0.00 0.00 0.00 0.00 8.50 66.21 a 160.50 28.00 39.00 0.00 0.00 0.00 302.21
2000 0.00 d 0.00 0.00 c 0.00 20.50 h 8.50 69.50 68.50 13.50 0.00 0.00 0.00 160.00
2001 0.00 a 0.00 0.00 0.00 0.50 94.66 a 125.50 125.50 14.00 0.00 0.00 0.00 a 360.16
2002 0.00 0.00 0.00 5.50 10.00 86.00 188.50 59.00 41.00 0.00 z 0.00 0.00 390.00
2003 0.00 0.00 a 0.00 0.00 2.00 39.50 58.50 117.00 55.00 0.50 0.00 0.00 272.50
2004 0.00 a 0.00 c 0.00 0.00 0.00 z 0.00 z 8.00 z 16.50 52.00 0.00 0.00 0.00 68.50
2005 0.00 0.00 0.00 1.50 1.00 82.00 156.00 84.00 55.50 13.50 0.00 0.00 393.50
2006 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 63.00 3.50 0.00 z 0.00 0.00 66.50
2007 0.00 0.00 0.00 0.50 29.00 80.50 131.00 93.50 39.00 21.00 0.00 0.00 394.50
2008 0.00 0.00 0.00 0.00 0.00 14.00 79.50 56.00 24.00 3.50 0.00 0.00 177.00
2009 0.00 0.00 0.00 0.00 6.00 60.00 0.00 z 53.00 8.50 0.00 0.00 0.00 127.50
2010 0.00 0.00 0.00 2.00 43.00 38.50 129.50 159.50 3.60 e 0.00 0.00 0.00 376.10
2011 0.00 0.00 a 0.00 0.00 5.68 a 45.00 172.05 a 54.50 17.00 13.50 0.00 0.00 307.73
2012 0.00 0.00 5.50 0.00 26.50 72.00 196.50 78.00 20.50 0.00 h 0.00 z 0.00 z 399.00
Period of Record Statistics
MEAN 0.00 0.00 0.06 0.71 10.11 45.49 96.76 60.57 18.69 1.12 0.00 0.00 232.61
S.D. 0.00 0.00 0.57 2.46 11.34 32.33 50.49 36.04 18.06 3.30 0.00 0.00 97.78
SKEW 0.00 0.00 9.49 4.79 1.19 0.78 0.45 0.99 0.89 3.93 0.00 0.00 0.21
MAX 0.00 0.00 5.50 15.50 44.00 155.36 226.50 186.50 74.50 21.00 0.00 0.00 460.26
MIN 0.00 0.00 0.00 0.00 0.00 2.07 5.50 0.50 0.00 0.00 0.00 0.00 61.00
NO YRS 91 92 93 93 90 91 91 96 96 91 90 93 72