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
1908 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 0.00
1909 0.00 0.00 0.00 0.00 0.00 18.50 53.06 e 170.50 a 15.54 b 0.00 0.00 a 0.00 257.59
1910 0.00 0.00 0.00 0.00 0.00 128.50 137.00 61.50 4.00 0.00 0.00 0.00 331.00
1911 0.00 0.00 0.00 0.00 1.00 75.50 108.50 74.50 20.50 0.00 0.00 0.00 280.00
1912 0.00 0.00 0.00 a 0.00 2.50 24.00 55.28 a 28.50 66.11 c 0.00 0.00 i 0.00 176.39
1913 0.00 0.00 a 0.00 b 0.00 0.00 54.50 50.08 e 107.93 d 39.44 c 0.00 e 0.00 c 0.00 l 251.95
1914 0.00 l 0.00 b 0.00 0.00 8.00 37.50 133.50 126.00 12.00 1.50 0.00 d 0.00 318.50
1915 0.00 0.00 0.00 3.10 a 0.00 0.00 49.00 40.50 12.50 0.00 0.00 0.00 105.10
1916 0.00 0.00 0.00 0.00 a 0.00 1.00 203.50 169.00 4.00 0.00 0.00 0.00 c 377.50
1917 0.00 0.00 0.00 a 0.00 2.50 0.00 106.00 53.00 1.50 0.00 0.00 0.00 163.00
1918 0.00 0.00 0.00 0.00 a 0.00 18.50 66.13 a 178.50 20.00 2.50 0.00 0.00 285.63
1919 0.00 0.00 0.00 0.00 0.00 95.00 205.00 108.50 47.50 0.00 0.00 0.00 456.00
1920 0.00 z 0.00 z 0.00 a 0.00 0.00 a 54.00 77.00 42.50 39.50 10.00 0.00 0.00 z 223.00
1921 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
1922 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
1923 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
1924 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
1925 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 0.00
1926 0.00 0.00 0.00 4.00 g 2.00 9.50 45.00 63.00 7.50 0.00 0.00 z 0.00 z 127.00
1927 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
1928 0.00 r 0.00 0.00 e 0.00 10.85 a 1.00 101.00 86.50 12.41 a 3.50 0.00 b 0.00 215.26
1929 0.00 a 0.00 0.00 0.00 1.50 1.50 93.00 72.00 20.50 0.00 0.00 0.00 188.50
1930 0.00 a 0.00 0.00 0.00 0.00 d 42.00 77.50 131.23 a 14.00 0.00 a 0.00 z 0.00 z 264.73
1931 0.00 z 0.00 z 0.00 e 0.00 7.00 92.50 248.00 137.00 121.50 3.00 0.00 0.00 f 609.00
1932 0.00 c 0.00 b 0.00 0.00 3.10 a 50.50 193.00 190.13 a 13.50 0.00 0.00 0.00 a 450.23
1933 0.00 a 0.00 b 0.00 0.00 5.17 a 70.71 b 160.68 a 87.50 94.00 0.00 0.00 c 0.00 c 418.06
1934 0.00 0.00 0.00 0.00 3.74 b 66.92 d 97.81 b 77.50 a 8.28 a 4.50 0.00 0.00 a 258.75
1935 0.00 c 0.00 b 0.00 0.00 0.00 8.00 212.00 192.50 14.00 0.00 0.00 a 0.00 d 426.50
1936 0.00 i 0.00 d 0.00 b 0.00 12.00 6.00 j 253.00 109.00 67.00 0.00 0.00 0.00 b 441.00
1937 0.00 e 0.00 d 0.00 b 0.00 b 6.00 36.72 a 163.00 199.50 63.50 0.00 e 0.00 a 0.00 d 468.72
1938 0.00 t 0.00 e 0.00 0.00 b 0.00 d 16.50 106.90 b 168.00 13.00 4.81 b 0.00 a 0.00 309.21
1939 0.00 0.00 0.00 c 0.00 b 14.39 c 21.96 b 142.27 c 91.00 73.97 a 0.00 0.00 c 0.00 b 343.59
1940 0.00 a 0.00 a 0.00 0.00 g 0.00 f 22.00 22.00 n 70.50 h 38.00 m 0.00 i 0.00 z 0.00 h 22.00
1941 0.00 d 0.00 d 0.00 e 0.00 b 6.20 a 72.00 152.50 144.48 c 20.50 0.00 0.00 0.00 z 395.68
1942 0.00 g 0.00 d 0.00 e 0.00 d 0.00 a 38.50 128.50 126.50 40.50 0.00 c 0.00 e 0.00 f 334.00
1943 0.00 e 0.00 d 0.00 d 0.00 d 0.00 e 65.40 e 168.78 d 144.87 e 21.00 e 1.50 g 0.00 d 0.00 e 400.04
1944 0.00 e 0.00 d 0.00 d 0.00 e 4.59 d 53.08 d 99.00 f 166.48 d 13.27 d 0.00 e 0.00 d 0.00 237.42
1945 0.00 b 0.00 0.00 0.00 0.00 36.00 60.40 b 137.00 18.00 0.00 0.00 b 0.00 b 251.40
1946 0.00 0.00 c 0.00 e 0.00 d 0.00 d 22.20 e 98.74 d 72.33 a 3.50 0.00 a 0.00 0.00 196.77
1947 0.00 0.00 0.00 0.00 0.00 2.50 146.73 a 171.50 94.66 a 4.65 a 0.00 b 0.00 b 420.04
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 56.00 131.00 149.12 b 76.00 0.00 0.00 0.00 412.12
1949 0.00 0.00 a 0.00 0.00 a 6.00 72.50 219.50 199.00 7.00 0.00 0.00 0.00 a 504.00
1950 0.00 b 0.00 0.00 0.00 0.00 32.00 59.00 62.00 0.00 0.00 0.00 a 0.00 b 153.00
1951 0.00 a 0.00 0.00 0.00 1.55 a 5.00 c 121.50 52.50 6.50 0.00 0.00 0.00 187.05
1952 0.00 a 0.00 0.00 0.00 4.00 59.50 118.00 84.00 5.00 0.00 b 0.00 0.00 270.50
1953 0.00 0.00 0.00 0.00 0.00 a 33.00 143.50 187.50 25.00 2.50 0.00 0.00 391.50
1954 0.00 0.00 0.00 0.00 a 0.00 36.72 a 118.83 a 110.71 c 31.50 0.00 a 0.00 b 0.00 297.77
1955 0.00 0.00 0.00 0.50 0.00 37.50 206.00 270.22 a 20.89 b 0.00 d 0.00 0.00 b 535.11
1956 0.00 0.00 0.00 0.00 5.00 66.72 a 58.38 a 93.60 e 0.00 e 0.00 a 0.00 0.00 a 223.70
1957 0.00 0.00 0.00 a 2.00 1.00 24.83 a 126.00 109.03 b 6.50 k 0.00 i 0.00 e 0.00 f 262.86
1958 0.00 j 0.00 0.00 1.00 1.50 11.90 a 79.57 a 99.95 b 1.03 a 0.00 0.00 0.00 d 194.95
1959 0.00 c 0.00 0.00 l 0.00 e 0.00 f 66.00 67.17 a 176.50 34.50 0.00 0.00 0.00 344.17
1960 0.00 0.00 0.00 b 0.00 0.00 8.00 31.00 n 122.40 b 81.50 0.00 0.00 0.00 d 211.90
1961 0.00 0.00 f 0.00 0.00 0.00 b 55.56 c 38.50 t 69.00 m 40.50 0.00 0.00 0.00 96.06
1962 0.00 0.00 0.00 0.00 0.00 k 9.00 m 28.00 r 0.00 z 0.00 z 0.00 z 0.00 0.00 0.00
1963 0.00 a 0.00 0.00 0.00 0.00 b 51.50 156.03 a 73.22 b 17.59 a 13.36 b 0.00 0.00 311.71
1964 0.00 0.00 z 0.00 0.00 b 15.50 116.50 159.50 83.00 28.50 0.00 0.00 0.00 403.00
1965 0.00 0.00 0.00 a 0.00 0.00 35.50 0.00 z 93.00 12.50 0.00 a 0.00 0.00 141.00
1966 0.00 0.00 0.00 0.00 5.17 a 115.50 225.00 116.00 19.44 c 5.34 b 0.00 0.00 486.46
1967 0.00 0.00 0.00 0.00 1.50 14.50 101.50 53.00 12.50 5.50 0.00 0.00 188.50
1968 0.00 0.00 0.00 0.00 0.00 25.50 109.50 141.00 14.40 e 6.00 f 0.00 0.00 290.40
1969 0.00 0.00 0.00 0.00 16.00 12.00 128.28 b 205.00 39.50 i 0.00 0.00 0.00 361.28
1970 0.00 0.00 0.00 0.00 2.00 71.50 212.50 148.50 25.50 0.00 0.00 g 0.00 460.00
1971 0.00 0.00 0.00 0.00 0.50 90.50 107.00 82.50 37.20 e 12.00 0.00 f 0.00 329.70
1972 0.00 0.00 0.00 b 0.00 0.00 l 11.00 68.50 66.00 0.50 0.00 0.00 0.00 146.00
1973 0.00 0.00 0.00 0.00 0.00 a 31.00 106.00 0.00 z 0.00 z 0.00 z 0.00 0.00 137.00
1974 0.00 0.00 0.00 b 0.00 0.00 7.00 124.50 45.00 10.50 0.00 z 0.00 i 0.00 187.00
1975 0.00 0.00 0.00 b 0.00 7.50 31.00 171.50 92.50 2.78 c 1.50 f 0.00 f 0.00 305.28
1976 0.00 0.00 i 0.00 e 0.00 a 0.00 c 91.73 d 135.00 97.50 25.00 0.00 c 0.00 0.00 349.23
1977 0.00 0.00 0.00 5.00 11.00 19.50 128.50 40.00 0.00 0.00 0.00 0.00 204.00
1978 0.00 0.00 0.00 0.00 11.33 e 9.23 d 62.50 g 59.00 63.50 0.00 0.00 0.00 c 143.06
1979 0.00 a 0.00 0.00 e 0.00 0.00 19.00 j 88.50 53.50 0.00 z 0.00 z 0.00 0.00 142.00
1980 0.00 c 0.00 a 0.00 0.00 5.74 d 19.50 95.50 96.50 16.50 0.00 g 0.00 a 0.00 b 233.74
1981 0.00 0.00 0.00 d 0.00 2.00 28.00 101.00 71.50 26.50 0.00 d 0.00 0.00 b 229.00
1982 0.00 0.00 0.00 0.00 0.00 4.00 74.00 60.50 13.50 0.00 0.00 0.00 152.00
1983 0.00 0.00 0.00 0.00 0.00 36.00 233.00 207.50 62.00 0.00 0.00 0.00 538.50
1984 0.00 0.00 0.00 a 0.00 0.00 14.50 97.00 144.84 b 1.50 0.00 0.00 0.00 257.84
1985 0.00 c 0.00 0.00 z 0.00 2.50 15.00 113.50 63.00 44.00 0.00 0.00 0.00 238.00
1986 0.00 0.00 0.00 0.00 12.50 13.00 170.00 93.00 18.00 0.00 0.00 0.00 306.50
1987 0.00 0.00 0.00 0.00 12.00 112.50 b 176.00 122.50 13.93 b 0.00 0.00 0.00 436.93
1988 0.00 0.00 0.00 0.00 28.50 147.93 a 196.00 171.00 27.50 0.00 0.00 0.00 570.93
1989 0.00 0.00 0.00 0.00 0.00 z 9.00 106.50 106.00 g 12.00 0.00 0.00 0.00 127.50
1990 0.00 0.00 0.00 2.50 0.00 31.50 63.00 64.00 47.00 0.00 0.00 0.00 208.00
1991 0.00 0.00 0.00 2.50 19.00 73.50 144.00 175.50 48.00 0.00 0.00 0.00 462.50
1992 0.00 0.00 0.00 0.00 0.00 30.50 32.50 56.00 1.50 0.00 0.00 0.00 120.50
1993 0.00 0.00 0.00 0.00 0.00 13.50 110.00 136.00 5.00 0.00 0.00 0.00 264.50
1994 0.00 0.00 0.00 0.50 6.50 78.50 111.00 58.00 51.00 0.00 0.00 0.00 i 305.50
1995 0.00 0.00 j 0.00 0.00 0.50 142.50 226.50 283.50 45.00 2.00 0.00 i 0.00 700.00
1996 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
1997 0.00 0.00 0.00 0.00 0.00 73.00 101.00 76.00 16.50 5.00 0.00 0.00 271.50
1998 0.00 0.00 0.00 0.00 38.00 87.50 145.50 155.00 63.00 0.00 0.00 o 0.00 489.00
1999 0.00 e 0.00 h 0.00 0.00 b 15.00 82.50 d 249.60 b 57.00 f 22.78 c 0.00 b 0.00 r 0.00 f 369.88
2000 0.00 e 0.00 j 0.00 s 0.00 g 0.00 r 41.54 d 78.57 b 102.00 18.46 d 4.50 k 0.00 o 0.00 d 240.57
2001 0.00 e 0.00 z 0.00 m 0.00 p 0.00 69.00 152.50 162.23 a 21.35 d 0.00 g 0.00 t 0.00 d 405.08
2002 0.00 0.00 0.00 6.00 1.00 81.50 263.50 122.50 11.50 t 9.50 0.00 o 0.00 n 484.00
2003 0.00 0.00 0.00 q 0.00 0.00 10.50 86.50 119.50 25.00 0.00 0.00 0.00 241.50
2004 0.00 0.00 0.00 0.00 0.00 10.50 73.00 41.50 21.50 0.00 0.00 0.00 146.50
2005 0.00 0.00 0.00 0.00 0.00 64.50 158.00 155.50 59.00 0.50 0.00 0.00 437.50
2006 0.00 0.00 0.00 0.00 0.50 31.50 216.50 124.50 12.50 0.00 0.00 0.00 385.50
2007 0.00 0.00 0.00 0.00 2.50 59.00 101.00 137.50 50.00 5.00 0.00 0.00 355.00
2008 0.00 0.00 0.00 0.00 0.00 29.00 80.00 92.50 14.50 1.50 0.00 0.00 217.50
2009 0.00 0.00 0.00 0.00 0.00 42.50 36.50 47.50 11.50 0.00 0.00 0.00 138.00
2010 0.00 0.00 0.00 0.00 11.00 49.00 164.00 188.50 14.50 0.00 0.00 0.00 427.00
2011 0.00 0.00 0.00 i 0.00 z 0.00 z 0.00 z 141.00 n 156.50 29.50 0.00 0.00 0.00 186.00
2012 0.00 0.00 0.00 0.00 7.00 63.50 243.00 94.50 32.50 0.00 h 0.00 z 0.00 z 440.50
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.25 3.87 44.08 129.91 115.09 27.36 1.15 0.00 0.00 313.42
S.D. 0.00 0.00 0.00 0.96 6.52 34.25 57.51 53.19 24.59 2.73 0.00 0.00 125.66
SKEW 0.00 0.00 0.00 4.39 2.67 0.90 0.53 0.66 1.43 2.80 0.00 0.00 0.24
MAX 0.00 0.00 0.00 6.00 38.00 147.93 263.50 283.50 121.50 13.36 0.00 0.00 570.93
MIN 0.00 0.00 0.00 0.00 0.00 0.00 32.50 28.50 0.00 0.00 0.00 0.00 105.10
NO YRS 88 87 90 91 89 93 89 91 90 84 82 86 49