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
1934 0.00 z 0.00 z 0.00 z 2.00 49.50 129.00 148.00 66.50 2.50 0.00 0.00 0.00 397.50
1935 0.00 0.00 0.00 0.50 1.00 19.50 254.00 114.50 15.50 0.00 0.00 b 0.00 b 405.00
1936 0.00 0.00 0.00 a 0.00 35.00 23.50 256.00 112.00 51.00 0.00 0.00 a 0.00 477.50
1937 0.00 0.00 0.00 0.00 22.50 49.00 194.50 176.91 b 53.28 a 0.00 0.00 0.00 496.19
1938 0.00 0.00 a 0.00 2.50 6.20 a 40.00 87.50 91.00 h 5.00 g 2.07 a 0.00 b 0.00 b 138.27
1939 0.00 0.00 b 0.00 c 0.00 c 23.80 c 29.00 j 116.25 a 53.00 87.41 a 0.00 0.00 c 0.00 i 280.47
1940 0.00 c 0.00 e 0.00 0.00 1.00 37.00 116.50 66.00 17.50 0.00 0.00 a 0.00 a 238.00
1941 0.00 n 0.00 0.00 0.00 a 18.50 83.79 a 126.07 a 63.00 25.50 0.00 0.00 0.00 316.86
1942 0.00 c 0.00 a 0.00 b 0.52 a 2.38 e 29.50 99.50 67.68 a 16.03 a 0.00 a 0.00 0.00 215.62
1943 0.00 0.00 0.00 0.00 3.62 a 109.66 a 146.00 95.58 a 10.86 a 0.00 o 0.00 0.00 365.72
1944 0.00 a 0.00 a 0.00 0.00 25.00 77.68 b 70.00 128.00 14.00 0.00 0.00 0.00 314.68
1945 0.00 0.00 0.00 0.00 0.00 19.50 71.00 67.50 45.50 0.00 0.00 0.00 203.50
1946 0.00 0.00 0.00 0.00 0.00 72.00 110.50 60.89 c 9.64 b 2.00 f 0.00 f 0.00 a 253.04
1947 0.00 0.00 a 0.00 0.00 1.03 a 37.00 112.50 264.00 62.00 3.00 0.00 0.00 479.53
1948 0.00 0.00 0.00 7.00 0.00 18.10 a 124.00 113.50 50.00 0.00 0.00 0.00 k 312.60
1949 0.00 0.00 0.00 z 0.00 a 6.50 y 100.50 145.50 103.50 0.50 0.00 0.00 0.00 350.00
1950 0.00 0.00 0.00 0.00 0.00 42.00 43.50 34.50 0.00 4.43 c 0.00 0.00 124.43
1951 0.00 0.00 0.00 0.00 18.00 11.00 103.00 28.00 5.00 0.00 0.00 0.00 165.00
1952 0.00 a 0.00 0.00 0.50 7.00 81.00 144.00 39.50 33.50 0.00 0.00 0.00 305.50
1953 0.00 a 0.00 0.00 0.00 16.00 59.00 93.52 a 80.71 b 36.96 b 6.00 o 0.00 a 0.00 l 286.19
1954 0.00 g 0.00 d 0.00 c 0.00 c 0.50 87.12 d 36.00 l 37.20 a 5.00 0.00 0.00 0.00 129.82
1955 0.00 0.00 0.00 0.00 15.00 32.50 230.95 a 146.73 a 27.41 a 0.00 0.00 b 0.00 452.60
1956 0.00 0.00 a 0.00 0.00 7.00 84.50 38.00 55.00 2.50 2.50 0.00 0.00 a 189.50
1957 0.00 0.00 0.00 0.00 3.50 51.00 138.50 65.50 18.50 0.00 0.00 a 0.00 277.00
1958 0.00 0.00 0.00 1.50 0.00 21.43 b 57.00 83.50 13.50 0.00 a 0.00 a 0.00 a 176.93
1959 0.00 0.00 0.00 0.00 31.00 73.50 111.50 149.00 37.00 0.00 0.00 0.00 402.00
1960 0.00 0.00 a 0.00 0.00 0.00 14.50 94.00 109.50 64.50 0.00 a 0.00 0.00 282.50
1961 0.00 0.00 0.00 0.00 a 0.00 71.50 90.50 109.50 49.66 a 0.00 0.00 0.00 321.16
1962 0.00 0.00 0.00 0.00 50.50 40.50 39.50 65.00 4.50 5.00 0.00 0.00 205.00
1963 0.00 0.00 0.00 0.00 2.00 100.50 129.00 44.00 3.50 2.00 0.00 0.00 281.00
1964 0.00 0.00 0.00 0.00 24.28 a 75.50 157.00 55.00 8.00 0.00 0.00 0.00 319.78
1965 0.00 0.00 0.00 0.00 8.50 k 23.00 47.00 58.00 1.55 a 3.00 0.00 0.00 132.55
1966 0.00 m 0.00 0.00 0.00 0.00 95.00 165.00 30.00 15.50 0.00 0.00 0.00 305.50
1967 0.00 0.00 0.00 0.00 6.50 31.00 79.00 37.00 6.50 0.00 0.00 0.00 160.00
1968 0.00 0.00 0.00 0.00 2.00 70.50 116.00 122.00 4.00 16.50 0.00 0.00 331.00
1969 0.00 0.00 0.00 0.00 27.50 11.00 90.50 117.00 24.00 2.00 0.00 0.00 272.00
1970 0.00 0.00 0.00 8.00 19.00 95.50 188.00 86.50 41.50 1.50 0.00 0.00 440.00
1971 0.00 0.00 0.00 0.00 0.00 101.50 40.50 35.00 52.00 9.00 0.00 0.00 238.00
1972 0.00 0.00 0.00 0.00 21.50 18.00 88.00 83.50 0.00 0.00 0.00 0.00 211.00
1973 0.00 0.00 0.00 0.00 0.00 32.50 83.50 99.00 31.00 0.00 0.00 0.00 246.00
1974 0.00 0.00 0.00 0.00 5.50 11.50 110.50 23.00 0.00 0.00 0.00 0.00 150.50
1975 0.00 0.00 0.00 0.00 39.50 50.50 148.50 50.50 0.00 0.00 0.00 0.00 289.00
1976 0.00 0.00 0.00 4.50 0.00 63.50 86.00 69.50 14.00 0.00 0.00 a 0.00 237.50
1977 0.00 0.00 0.00 0.00 48.50 18.00 129.00 15.00 0.50 0.00 0.00 0.00 211.00
1978 0.00 0.00 0.00 0.00 23.00 35.50 54.50 56.50 54.00 0.00 0.00 0.00 223.50
1979 0.00 0.00 0.00 0.00 2.00 17.00 81.00 22.50 12.50 0.00 0.00 0.00 135.00
1980 0.00 0.00 0.00 0.00 15.00 36.50 95.50 46.00 0.00 n 0.00 0.00 0.00 193.00
1981 0.00 0.00 0.00 0.00 0.00 18.00 57.00 39.50 2.50 0.00 0.00 0.00 117.00
1982 0.00 0.00 0.00 0.00 8.50 2.50 94.50 54.50 15.00 0.00 0.00 0.00 175.00
1983 0.00 0.00 0.00 0.00 0.00 47.00 181.00 116.00 35.00 0.50 0.00 p 0.00 z 379.50
1984 0.00 h 0.00 0.00 0.00 0.00 29.50 34.50 90.93 a 0.50 0.00 0.00 0.00 155.43
1985 0.00 0.00 0.00 2.00 4.00 15.50 k 20.00 15.50 31.50 0.00 q 0.00 0.00 73.00
1986 0.00 0.00 0.00 a 5.50 10.50 15.50 72.50 8.00 4.00 0.00 0.00 0.00 116.00
1987 0.00 0.00 0.00 0.00 3.50 40.00 62.00 27.00 11.00 0.00 0.00 0.00 143.50
1988 0.00 0.00 0.00 0.00 17.00 95.50 151.50 133.50 6.50 0.00 0.00 0.00 a 404.00
1989 0.00 0.00 0.00 0.00 0.00 24.00 104.00 53.50 2.00 0.00 0.00 0.00 183.50
1990 0.00 0.00 0.00 10.00 0.00 28.00 64.00 5.50 s 2.50 m 0.00 0.00 0.00 102.00
1991 0.00 0.00 0.00 0.00 31.00 0.00 z 77.00 101.50 12.00 0.00 0.00 0.00 m 221.50
1992 0.00 0.00 0.00 0.00 3.50 9.31 a 4.00 23.50 1.00 0.00 0.00 0.00 41.31
1993 0.00 0.00 0.00 m 0.00 4.50 12.50 45.00 55.00 0.00 0.00 0.00 0.00 117.00
1994 0.00 0.00 0.00 k 0.00 10.50 74.00 47.50 25.50 16.50 0.00 m 0.00 0.00 174.00
1995 0.00 0.00 0.00 0.00 0.00 133.50 91.00 115.00 10.50 0.00 0.00 n 0.00 350.00
1996 0.00 0.00 0.00 0.00 4.00 44.50 25.00 42.00 16.50 0.00 0.00 0.00 132.00
1997 0.00 0.00 a 0.00 l 0.00 0.00 56.50 79.50 25.50 4.00 0.50 0.00 0.00 166.00
1998 0.00 0.00 0.00 l 0.00 20.00 66.00 101.50 84.00 44.00 0.00 0.00 0.00 315.50
1999 0.00 0.00 0.00 0.00 10.00 66.00 156.00 31.00 26.00 0.00 0.00 0.00 289.00
2000 0.00 0.00 0.00 0.00 20.50 16.00 71.50 54.50 18.50 0.00 a 0.00 0.00 181.00
2001 0.00 0.00 0.00 a 0.00 1.00 77.50 126.00 126.00 7.00 0.00 0.00 0.00 337.50
2002 0.00 0.00 0.00 1.50 9.00 81.00 206.50 56.50 32.00 0.00 0.00 l 0.00 386.50
2003 0.00 0.00 0.00 0.00 0.00 31.50 89.00 139.00 41.00 0.00 0.00 0.00 300.50
2004 0.00 0.00 0.00 0.00 h 0.00 16.00 61.50 21.00 25.50 0.00 0.00 q 0.00 124.00
2005 0.00 0.00 0.00 c 0.00 0.00 104.50 165.50 98.50 45.50 9.50 0.00 0.00 423.50
2006 0.00 0.00 0.00 l 0.00 34.50 53.50 225.50 69.00 5.50 0.00 0.00 0.00 388.00
2007 0.00 0.00 0.00 j 0.00 18.00 62.00 115.50 92.00 24.50 16.00 0.00 0.00 328.00
2008 0.00 0.00 0.00 0.00 0.00 25.50 72.00 54.50 23.00 1.00 0.00 0.00 176.00
2009 0.00 0.00 0.00 0.00 6.00 74.00 11.00 44.50 7.50 0.00 0.00 0.00 143.00
2010 0.00 0.00 0.00 j 0.00 48.50 43.50 126.00 123.00 2.50 0.00 0.00 0.00 c 343.50
2011 0.00 z 0.00 z 0.00 z 0.00 y 0.50 35.00 180.50 46.50 a 17.07 a 3.50 0.00 c 0.00 283.07
2012 0.00 0.00 0.00 k 0.00 15.00 73.33 c 198.92 a 60.00 16.50 0.00 y 0.00 z 0.00 z 363.75
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.60 11.10 50.76 107.27 73.15 20.16 1.12 0.00 0.00 257.95
S.D. 0.00 0.00 0.00 1.83 13.76 31.67 55.45 43.70 19.17 3.13 0.00 0.00 110.80
SKEW 0.00 0.00 0.00 3.60 1.34 0.57 0.64 1.33 1.11 3.68 0.00 0.00 0.50
MAX 0.00 0.00 0.00 10.00 50.50 133.50 256.00 264.00 87.41 16.50 0.00 0.00 496.19
MIN 0.00 0.00 0.00 0.00 0.00 2.50 4.00 8.00 0.00 0.00 0.00 0.00 41.31
NO YRS 73 77 68 77 77 76 78 77 76 73 73 73 49