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
1913 0.00 z 0.00 z 0.00 z 0.00 z 3.00 h 106.50 55.80 a 71.62 b 43.00 0.00 d 0.00 a 0.00 c 276.92
1914 0.00 a 0.00 0.00 0.00 10.33 a 37.76 a 128.00 30.00 17.50 0.00 0.00 0.00 a 223.59
1915 0.00 0.00 0.00 b 0.00 4.13 a 16.50 27.00 11.50 6.00 0.00 0.00 0.00 65.13
1916 0.00 z 0.00 h 0.00 0.00 1.00 8.50 221.50 123.50 4.50 0.00 0.00 0.00 359.00
1917 0.00 a 0.00 0.00 0.00 0.00 15.00 a 111.50 21.00 0.00 0.00 b 0.00 0.00 b 147.50
1918 0.00 a 0.00 0.00 a 0.00 a 22.06 e 21.50 91.00 64.50 5.40 e 0.00 0.00 0.00 204.46
1919 0.00 0.00 a 0.00 0.00 26.00 118.50 97.50 29.50 27.50 0.00 b 0.00 0.00 a 299.00
1920 0.00 0.00 0.00 0.00 a 1.00 81.50 27.50 30.50 24.50 1.50 0.00 0.00 166.50
1921 0.00 0.00 0.00 a 3.62 a 33.50 135.50 195.00 27.00 16.50 0.00 g 0.00 0.00 z 411.12
1922 0.00 z 0.00 z 0.00 a 0.00 e 22.50 21.00 13.95 a 56.00 40.18 b 11.37 a 0.00 e 0.00 b 165.00
1923 0.00 0.00 0.00 0.00 0.00 100.00 122.00 12.50 6.96 b 0.00 0.00 e 0.00 i 241.46
1924 0.00 z 0.00 0.00 c 0.00 a 0.00 g 4.00 23.50 44.36 b 0.00 d 0.00 c 0.00 a 0.00 b 71.86
1925 0.00 a 0.00 i 0.00 3.00 14.39 c 77.00 71.09 b 122.97 a 33.00 f 0.00 c 0.00 0.00 j 288.45
1926 0.00 d 0.00 a 0.00 b 0.00 e 6.41 b 14.50 84.22 a 38.00 n 9.00 h 0.00 a 0.00 a 0.00 g 105.13
1927 0.00 z 0.00 a 0.00 z 0.00 h 2.67 b 51.00 28.50 10.33 a 81.11 c 0.00 z 0.00 d 0.00 173.62
1928 0.00 g 0.00 c 0.00 i 0.00 c 0.00 z 2.50 r 68.00 68.41 b 0.00 c 6.00 g 0.00 e 0.00 g 136.41
1929 0.00 z 0.00 p 0.00 i 0.00 c 0.00 l 24.00 h 109.05 c 47.02 a 0.00 z 0.00 z 0.00 z 0.00 j 156.07
1930 0.00 b 0.00 f 0.00 d 0.00 d 15.50 b 38.00 g 110.71 c 78.57 b 13.00 g 16.50 p 0.00 d 0.00 r 204.78
1931 0.00 z 0.00 a 0.00 d 0.00 i 0.00 p 96.00 f 150.72 b 41.13 e 106.50 p 0.00 z 0.00 f 0.00 z 191.86
1932 0.00 n 0.00 g 0.00 f 0.00 m 0.00 c 49.50 95.67 b 39.94 e 0.00 p 0.00 b 0.00 c 0.00 z 185.11
1933 0.00 a 0.00 k 0.00 d 0.00 b 0.00 n 156.21 a 132.00 f 11.50 18.50 i 0.00 l 0.00 z 0.00 d 167.71
1934 0.00 n 0.00 c 0.00 z 0.00 z 18.50 o 125.00 168.43 a 78.50 2.40 e 0.00 c 0.00 l 0.00 g 374.33
1935 0.00 z 0.00 d 0.00 b 0.00 b 0.00 9.00 235.00 138.35 d 21.00 e 0.00 r 0.00 g 0.00 b 403.35
1936 0.00 g 0.00 c 0.00 o 0.00 h 7.46 d 14.46 b 124.50 f 94.50 53.28 a 0.00 l 0.00 i 0.00 d 169.70
1937 0.00 c 0.00 e 0.00 d 0.00 18.08 a 40.00 g 191.17 a 165.50 g 48.33 c 7.46 d 0.00 m 0.00 o 265.05
1938 0.00 b 0.00 c 0.00 b 4.00 g 2.50 37.76 a 86.50 h 136.18 c 8.50 1.50 0.00 0.00 186.44
1939 0.00 0.00 0.00 0.00 27.50 65.50 136.00 67.17 a 53.50 0.00 0.00 0.00 a 349.67
1940 0.00 a 0.00 0.00 0.00 3.00 26.50 139.50 86.00 41.00 0.00 0.00 d 0.00 296.00
1941 0.00 d 0.00 b 0.00 1.55 a 9.96 c 0.00 z 0.00 z 0.00 z 17.00 n 0.00 b 0.00 a 0.00 k 11.52
1942 0.00 0.00 0.00 j 1.61 b 14.00 51.50 101.61 d 70.78 a 20.56 c 0.00 a 0.00 e 0.00 d 260.06
1943 0.00 a 0.00 b 0.00 b 0.00 0.00 c 102.86 b 154.00 f 117.50 9.50 0.53 b 0.00 0.00 j 230.39
1944 0.00 g 0.00 j 0.00 v 0.00 z 39.61 d 33.50 h 0.00 z 0.00 z 0.00 z 0.00 z 0.00 o 0.00 39.61
1945 0.00 0.00 0.00 2.00 0.00 z 21.50 h 97.65 a 75.00 g 46.50 0.00 0.00 0.00 z 146.15
1946 0.00 0.00 b 0.00 0.00 2.00 57.41 a 108.50 52.50 12.69 d 1.03 a 0.00 0.00 234.14
1947 0.00 0.00 0.00 a 0.00 b 0.00 i 34.50 138.47 a 278.00 75.00 a 2.00 m 0.00 a 0.00 q 525.97
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 33.50 128.50 145.00 50.00 0.00 0.00 0.00 357.00
1949 0.00 0.00 0.00 a 0.00 13.00 109.00 131.50 124.00 0.00 0.00 0.00 0.00 377.50
1950 0.00 0.00 0.00 0.00 8.00 64.00 54.00 32.50 0.50 3.50 0.00 0.00 162.50
1951 0.00 0.00 0.00 0.00 18.50 1.50 78.00 21.00 0.00 a 0.00 0.00 0.00 119.00
1952 0.00 0.00 0.00 2.00 5.50 54.50 123.50 29.00 34.14 a 0.00 0.00 a 0.00 248.64
1953 0.00 0.00 0.00 0.00 10.00 46.50 75.50 97.50 39.11 b 4.50 0.00 0.00 273.11
1954 0.00 0.00 a 0.00 a 0.00 1.55 a 87.00 83.50 24.50 0.00 a 0.00 0.00 0.00 196.55
1955 0.00 0.00 0.00 0.00 19.63 a 32.50 199.00 137.50 9.81 d 0.00 i 0.00 0.00 z 398.44
1956 0.00 0.00 0.00 0.00 4.13 a 80.00 19.50 32.50 1.55 a 3.50 0.00 0.00 141.19
1957 0.00 0.00 0.00 0.00 4.50 32.00 119.00 57.00 15.00 0.00 0.00 0.00 227.50
1958 0.00 0.00 0.00 2.00 0.00 a 17.50 54.00 68.50 9.50 0.00 a 0.00 0.00 151.50
1959 0.00 0.00 a 0.00 0.00 a 29.50 75.00 98.00 142.50 32.00 0.00 0.00 0.00 a 377.00
1960 0.00 0.00 0.00 0.00 0.00 11.50 73.00 93.00 54.50 0.00 a 0.00 a 0.00 232.00
1961 0.00 0.00 0.00 0.00 4.00 67.50 56.50 81.50 42.50 0.00 0.00 0.00 252.00
1962 0.00 0.00 0.00 0.00 54.25 a 29.00 30.00 46.50 3.00 6.41 b 0.00 a 0.00 169.16
1963 0.00 0.00 0.00 0.00 a 1.00 107.50 130.00 38.50 0.00 z 3.50 0.00 0.00 a 280.50
1964 0.00 0.00 0.00 0.00 27.00 75.00 152.00 60.50 6.50 0.00 0.00 0.00 321.00
1965 0.00 0.00 0.00 0.00 11.37 a 21.50 45.50 61.50 1.50 5.00 0.00 0.00 146.37
1966 0.00 0.00 0.00 0.00 4.00 99.50 179.00 53.00 18.00 0.00 0.00 0.00 353.50
1967 0.00 0.00 0.00 0.00 0.00 24.00 61.00 27.50 3.00 0.00 0.00 0.00 115.50
1968 0.00 0.00 0.00 0.00 1.50 63.00 94.00 100.00 6.00 15.50 a 0.00 0.00 280.00
1969 0.00 0.00 0.00 0.00 27.00 9.31 a 78.02 a 101.50 20.00 0.50 0.00 0.00 236.33
1970 0.00 0.00 0.00 8.50 9.00 89.50 163.50 86.00 43.00 0.00 0.00 0.00 399.50
1971 0.00 0.00 0.00 0.00 0.00 114.50 27.38 a 35.50 44.50 8.50 0.00 0.00 230.38
1972 0.00 0.00 0.00 a 0.00 58.00 21.50 74.00 81.50 1.00 0.00 0.00 0.00 236.00
1973 0.00 0.00 0.00 0.00 0.00 43.50 92.50 123.50 30.50 2.50 0.00 0.00 292.50
1974 0.00 0.00 0.00 2.50 6.50 18.00 154.50 44.00 0.00 0.00 0.00 a 0.00 225.50
1975 0.00 0.00 0.00 0.00 51.50 75.50 166.50 73.50 0.00 0.00 0.00 0.00 367.00
1976 0.00 0.00 0.00 2.50 0.00 67.50 101.50 111.00 30.00 0.00 0.00 0.00 312.50
1977 0.00 0.00 0.00 1.50 82.50 14.50 148.00 20.50 1.50 0.00 0.00 a 0.00 268.50
1978 0.00 0.00 0.00 a 0.00 34.00 45.50 50.50 80.50 65.00 0.00 0.00 0.00 275.50
1979 0.00 0.00 0.00 a 0.00 3.50 11.50 96.50 19.24 b 16.50 0.00 a 0.00 0.00 147.24
1980 0.00 0.00 0.00 7.50 19.63 a 34.00 106.43 a 48.50 3.50 0.00 0.00 0.00 219.57
1981 0.00 0.00 0.00 0.00 0.50 21.72 a 76.50 71.00 1.50 0.00 0.00 0.00 171.22
1982 0.00 0.00 0.00 0.00 16.50 0.00 116.00 53.00 22.00 0.00 0.00 0.00 207.50
1983 0.00 0.00 0.00 0.00 0.00 z 74.50 215.50 120.50 41.00 0.00 0.00 0.00 451.50
1984 0.00 0.00 0.00 0.00 0.00 41.50 65.50 104.00 6.50 0.00 0.00 0.00 a 217.50
1985 0.00 0.00 0.00 b 2.50 7.50 26.00 49.50 23.50 34.00 0.00 0.00 0.00 143.00
1986 0.00 a 0.00 0.00 4.00 19.50 30.50 133.00 13.00 9.50 0.00 0.00 0.00 209.50
1987 0.00 0.00 0.00 1.50 18.50 92.00 153.00 60.00 16.50 0.00 0.00 0.00 341.50
1988 0.00 0.00 a 0.00 b 0.00 34.50 103.00 178.00 0.00 z 1.03 a 0.00 0.00 0.00 316.53
1989 0.00 a 0.00 0.00 0.00 6.50 31.50 101.50 44.00 1.00 0.00 0.00 0.00 184.50
1990 0.00 0.00 0.00 9.00 0.00 21.00 28.50 47.50 0.00 0.00 0.00 0.00 z 106.00
1991 0.00 z 0.00 0.00 0.00 0.00 x 60.50 78.50 95.00 14.50 0.00 0.00 0.00 248.50
1992 0.00 0.00 0.00 0.00 22.00 15.50 2.50 32.00 4.00 0.00 0.00 0.00 76.00
1993 0.00 0.00 0.00 0.00 8.00 17.50 58.00 81.00 0.00 0.00 0.00 0.00 164.50
1994 0.00 0.00 0.00 0.00 18.00 55.00 44.00 24.00 15.00 0.00 0.00 0.00 156.00
1995 0.00 0.00 0.00 0.00 0.00 142.00 94.50 122.50 14.50 3.50 0.00 0.00 377.00
1996 0.00 0.00 a 0.00 0.00 4.50 57.50 26.50 43.00 18.50 0.00 a 0.00 0.00 150.00
1997 0.00 0.00 0.00 0.00 0.00 52.00 81.50 22.00 6.00 0.00 0.00 0.00 161.50
1998 0.00 a 0.00 0.00 0.00 38.00 62.50 79.00 79.50 56.50 0.00 0.00 0.00 a 315.50
1999 0.00 a 0.00 0.00 0.00 14.50 82.00 170.00 34.00 40.50 0.00 0.00 0.00 341.00
2000 0.00 0.00 0.00 0.00 21.50 20.50 78.50 46.50 9.00 0.00 a 0.00 0.00 a 176.00
2001 0.00 0.00 0.00 0.00 0.00 97.50 114.50 136.50 18.62 a 0.00 0.00 0.00 367.12
2002 0.00 0.00 0.00 9.00 8.00 104.00 193.50 64.50 41.00 0.00 0.00 0.00 420.00
2003 0.00 0.00 0.00 0.00 0.50 46.50 74.00 118.00 46.50 0.55 c 0.00 0.00 286.05
2004 0.00 0.00 b 0.00 0.00 a 0.00 17.50 76.50 27.00 41.00 0.00 0.00 0.00 a 162.00
2005 0.00 0.00 0.00 0.00 0.00 112.50 153.50 79.50 53.00 10.50 0.00 e 0.00 409.00
2006 0.00 0.00 0.00 0.00 35.50 43.00 155.00 56.50 0.50 0.00 0.00 0.00 290.50
2007 0.00 a 0.00 l 0.00 a 0.00 29.00 80.00 122.50 106.00 52.00 17.50 0.00 0.00 407.00
2008 0.00 0.00 0.00 0.00 0.00 24.50 80.50 56.50 33.50 1.50 0.00 0.00 196.50
2009 0.00 0.00 0.00 0.00 5.50 65.00 9.00 57.00 3.50 0.00 0.00 0.00 140.00
2010 0.00 0.00 a 0.00 0.00 a 45.50 39.50 91.50 f 148.00 3.00 0.00 0.00 0.00 236.00
2011 0.00 c 0.00 a 0.00 0.00 3.50 38.57 b 187.11 c 57.50 11.25 b 9.62 b 0.00 0.00 307.55
2012 0.00 0.00 a 3.00 0.00 24.00 65.69 a 176.50 58.26 b 18.10 a 0.00 i 0.00 z 0.00 z 345.55
Period of Record Statistics
MEAN 0.00 0.00 0.03 0.71 13.34 53.87 102.85 68.52 20.90 1.38 0.00 0.00 239.24
S.D. 0.00 0.00 0.32 1.90 15.89 36.57 53.49 43.24 20.27 3.40 0.00 0.00 87.51
SKEW 0.00 0.00 9.33 3.28 1.72 0.66 0.31 1.44 0.85 2.98 0.00 0.00 0.25
MAX 0.00 0.00 3.00 9.00 82.50 156.21 235.00 278.00 81.11 17.50 0.00 0.00 420.00
MIN 0.00 0.00 0.00 0.00 0.00 0.00 2.50 10.33 0.00 0.00 0.00 0.00 65.13
NO YRS 85 89 90 91 88 92 93 94 90 87 91 82 64