date! ,

Monthly Total Cooling Degree Days

(a vali)

Base Temperature = 65 F

File last updated on Apr 6, 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
1893 0.00 z 0.00 z 0.00 z 0.00 z 2.67 b 149.42 d 138.39 c 100.50 90.50 0.00 r 0.00 d 0.00 481.49
1894 0.00 0.00 0.00 0.52 a 51.67 a 171.50 240.50 208.70 c 80.69 a 1.07 b 0.00 0.00 754.64
1895 0.00 b 0.00 0.00 6.50 52.50 62.50 117.00 f 8.00 z 0.00 z 0.00 z 0.00 z 0.00 z 121.50
1896 0.00 z 0.00 0.00 2.50 68.00 111.00 152.50 160.50 14.50 0.00 0.00 0.00 509.00
1897 0.00 m 0.00 0.00 c 0.00 9.50 133.00 239.73 a 47.02 a 190.00 31.00 0.00 b 0.00 650.25
1898 0.00 0.00 b 0.00 f 0.00 24.50 121.50 182.00 148.00 75.50 5.54 c 0.00 a 0.00 c 557.04
1899 0.00 b 0.00 a 0.00 b 11.50 11.00 88.00 162.50 223.50 58.00 8.50 0.00 0.00 563.00
1900 0.00 0.00 0.00 0.00 67.50 106.50 193.50 313.50 89.00 20.50 0.00 0.00 790.50
1901 0.00 b 0.00 0.00 d 11.00 f 41.69 b 154.50 449.50 234.05 a 52.00 1.11 c 0.00 0.00 d 932.85
1902 0.00 b 0.00 b 0.00 c 0.00 40.50 64.50 203.50 117.00 4.14 a 1.00 0.00 a 0.00 c 430.64
1903 0.00 a 0.00 0.00 b 0.00 19.50 63.50 159.50 100.23 a 9.50 0.55 c 0.00 a 0.00 d 352.79
1904 0.00 a 0.00 a 0.00 b 0.00 3.50 51.00 91.00 69.50 23.79 a 0.00 b 0.00 b 0.00 238.79
1905 0.00 c 0.00 0.00 c 0.00 0.00 71.50 108.00 205.50 42.50 8.78 a 0.00 0.00 b 436.28
1906 0.00 0.00 a 0.00 a 1.00 47.00 62.50 104.00 193.50 57.50 0.00 b 0.00 a 0.00 465.50
1907 0.00 c 0.00 0.00 0.00 3.50 66.50 156.00 119.00 39.00 0.00 a 0.00 a 0.00 a 384.00
1908 0.00 a 0.00 0.00 0.00 12.00 50.00 166.00 93.50 154.00 4.28 b 0.00 0.00 a 479.78
1909 0.00 0.00 0.00 b 0.00 2.00 75.00 155.50 293.00 22.50 b 6.20 a 0.00 a 0.00 554.20
1910 0.00 a 0.00 0.00 9.50 1.00 160.00 168.00 118.00 18.00 16.50 0.00 b 0.00 491.00
1911 0.00 0.00 0.00 0.00 93.50 245.50 218.00 110.50 44.00 0.00 a 0.00 c 0.00 a 711.50
1912 0.00 b 0.00 a 0.00 0.00 a 14.50 68.28 a 187.00 84.00 91.50 3.10 a 0.00 a 0.00 a 448.38
1913 0.00 0.00 0.00 b 4.00 34.00 193.00 210.50 285.72 a 133.00 12.40 a 0.00 b 0.00 a 872.62
1914 0.00 0.00 0.00 3.50 41.50 135.00 287.50 194.50 21.21 a 11.00 0.00 b 0.00 694.21
1915 0.00 a 0.00 0.00 8.50 18.00 35.00 104.50 78.00 29.50 0.00 0.00 e 0.00 273.50
1916 0.00 0.00 l 0.00 0.00 z 0.00 z 0.00 z 0.00 z 207.81 d 54.00 5.50 0.00 0.00 a 267.31
1917 0.00 0.00 0.00 0.00 10.00 50.50 213.38 a 87.00 26.00 0.00 0.00 0.00 386.88
1918 0.00 0.00 0.00 0.00 33.07 a 102.00 149.00 225.00 4.50 0.00 a 0.00 b 0.00 k 513.57
1919 0.00 0.00 a 0.00 f 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
1920 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
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 z 0.00
1926 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
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 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
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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
1935 0.00 z 0.00 z 0.00 z 0.00 z 0.00 e 72.50 400.50 271.00 80.00 6.00 0.00 0.00 830.00
1936 0.00 0.00 0.00 0.00 66.00 141.00 485.50 354.50 133.00 0.00 0.00 0.00 a 1180.00
1937 0.00 0.00 0.00 0.00 35.50 97.50 262.00 331.18 a 100.00 0.00 0.00 0.00 826.18
1938 0.00 0.00 0.00 0.00 9.50 108.50 260.50 273.50 75.50 27.00 0.00 0.00 754.50
1939 0.00 0.00 0.00 9.50 85.00 139.00 256.00 118.00 172.00 0.00 0.00 0.00 779.50
1940 0.00 a 0.00 0.00 0.00 18.00 129.00 298.00 131.00 132.50 5.00 0.00 0.00 713.50
1941 0.00 0.00 0.00 1.00 98.00 129.00 241.00 226.50 90.50 0.00 0.00 0.00 786.00
1942 0.00 0.00 0.00 7.50 27.50 114.50 214.50 189.50 51.00 0.00 0.00 0.00 604.50
1943 0.00 0.00 4.50 0.00 38.50 177.50 248.00 215.00 20.00 2.50 0.00 0.00 706.00
1944 0.00 0.00 0.00 0.00 78.50 176.50 155.00 176.00 27.00 0.00 0.00 0.00 613.00
1945 0.00 0.00 0.00 0.00 7.50 48.00 176.50 183.50 61.50 1.50 0.00 0.00 478.50
1946 0.00 0.00 0.00 4.00 0.50 159.00 213.50 119.50 38.50 1.50 0.00 0.00 536.50
1947 0.00 0.00 0.00 0.00 0.00 57.50 225.50 395.50 150.50 49.00 0.00 0.00 878.00
1948 0.00 z 0.00 z 0.00 z 7.50 20.50 56.50 225.50 231.50 120.00 0.00 a 0.00 0.00 661.50
1949 0.00 0.00 0.00 1.50 51.00 168.50 279.00 208.00 2.50 2.50 0.00 0.00 713.00
1950 0.00 0.00 0.00 a 0.00 18.00 130.50 83.70 a 83.50 24.83 a 6.50 0.00 0.00 347.03
1951 0.00 0.00 0.00 0.00 2.00 36.50 158.50 108.50 1.00 8.50 0.00 0.00 a 315.00
1952 0.00 0.00 a 0.00 0.00 21.50 210.00 218.55 a 144.00 87.50 0.50 0.00 0.00 682.05
1953 0.00 0.00 0.00 0.00 a 45.00 212.00 225.50 198.50 58.50 18.00 0.00 0.00 757.50
1954 0.00 0.00 0.00 3.50 12.50 189.00 305.00 150.50 40.50 0.00 0.00 0.00 701.00
1955 0.00 0.00 0.00 1.50 49.50 90.00 390.00 346.50 114.00 2.00 0.00 0.00 993.50
1956 0.00 0.00 a 0.00 0.00 51.31 b 279.00 139.50 177.50 32.00 18.00 0.00 0.00 697.31
1957 0.00 0.00 0.00 0.00 11.00 65.50 339.50 167.50 19.00 0.00 0.00 0.00 602.50
1958 0.00 0.00 0.00 0.00 65.00 78.50 160.50 280.00 94.50 20.00 0.00 0.00 698.50
1959 0.00 0.00 0.00 0.00 55.50 225.50 224.50 322.50 93.00 0.00 0.00 0.00 921.00
1960 0.00 0.00 0.00 15.00 17.50 71.50 229.00 232.50 110.50 8.00 0.00 0.00 684.00
1961 0.00 0.00 0.00 0.00 15.50 134.00 178.00 203.50 57.50 1.00 0.00 0.00 589.50
1962 0.00 0.00 0.00 14.50 75.50 95.00 167.50 153.00 25.00 22.00 0.00 0.00 552.50
1963 0.00 0.00 0.00 6.00 33.50 236.50 267.50 186.50 74.50 22.00 0.00 0.00 826.50
1964 0.00 0.00 0.00 2.50 92.50 168.00 334.50 142.00 67.00 0.00 0.00 0.00 806.50
1965 0.00 0.00 0.00 3.00 49.50 118.00 219.00 156.00 11.00 3.00 0.00 0.00 559.50
1966 0.00 0.00 0.00 0.00 25.50 147.50 340.50 106.50 36.00 1.50 0.00 0.00 657.50
1967 0.00 0.00 0.00 6.00 37.50 80.00 205.00 138.00 20.00 8.00 0.00 0.00 494.50
1968 0.00 a 0.00 0.00 3.50 6.50 188.00 233.50 238.50 34.50 13.00 0.00 0.00 717.50
1969 0.00 a 0.00 0.00 0.00 71.00 45.50 267.00 199.50 42.00 14.50 0.00 0.00 639.50
1970 0.00 z 0.00 a 0.00 15.50 87.50 211.00 261.50 219.00 119.00 13.50 0.00 0.00 927.00
1971 0.00 0.00 0.00 0.00 z 6.50 244.00 162.50 189.00 89.00 13.50 0.00 0.00 704.50
1972 0.00 0.00 0.00 0.00 75.50 151.00 0.00 z 195.50 48.00 0.00 0.00 0.00 470.00
1973 0.00 0.00 0.00 0.00 25.00 177.50 232.50 251.50 36.00 14.50 0.00 0.00 737.00
1974 0.00 0.00 0.00 6.50 28.50 141.00 374.00 96.00 33.50 3.00 0.00 0.00 682.50
1975 0.00 0.00 a 0.00 0.00 69.50 128.50 311.00 201.50 27.00 9.00 0.00 0.00 746.50
1976 0.00 b 0.00 0.00 7.50 17.00 0.00 z 266.00 234.00 89.50 7.00 0.00 0.00 a 621.00
1977 0.00 0.00 0.00 3.00 43.00 86.50 213.50 0.00 z 17.22 c 0.00 0.00 0.00 363.22
1978 0.00 0.00 0.00 0.00 35.00 124.00 0.00 z 136.00 112.50 0.50 0.00 0.00 408.00
1979 0.00 0.00 0.00 0.00 37.50 154.00 216.00 140.00 69.50 0.00 0.00 0.00 a 617.00
1980 0.00 0.00 0.00 z 17.50 60.00 173.50 291.00 175.50 63.50 2.50 0.00 0.00 a 783.50
1981 0.00 b 0.00 0.00 b 7.76 a 10.50 111.21 a 227.50 97.50 38.50 0.00 0.00 0.00 492.97
1982 0.00 0.00 0.00 0.00 13.50 35.50 214.50 120.50 29.00 0.00 0.00 0.00 d 413.00
1983 0.00 0.00 0.00 0.00 5.00 99.00 306.50 296.00 79.50 3.50 0.00 0.00 i 789.50
1984 0.00 0.00 0.00 0.00 3.00 76.00 129.50 173.50 29.42 d 0.00 a 0.00 b 0.00 b 411.42
1985 0.00 g 0.00 h 0.00 14.00 24.00 61.50 139.50 39.50 69.64 b 0.00 0.00 a 0.00 348.14
1986 0.00 0.00 0.00 0.00 5.50 127.50 219.00 57.00 8.00 0.00 0.00 0.00 417.00
1987 0.00 0.00 0.00 15.50 67.50 197.00 259.00 93.00 n 14.00 0.00 0.00 0.00 553.00
1988 0.00 0.00 0.00 0.00 69.00 236.00 250.00 231.50 35.00 0.00 0.00 0.00 821.50
1989 0.00 0.00 0.00 1.00 24.00 115.00 256.00 141.00 36.50 2.50 0.00 0.00 576.00
1990 0.00 0.00 0.00 19.50 5.50 155.50 154.50 128.50 112.50 2.00 0.00 0.00 578.00
1991 0.00 0.00 0.00 8.00 88.50 191.50 170.00 144.00 58.50 1.50 0.00 0.00 662.00
1992 0.00 0.00 0.00 0.00 30.00 66.50 22.00 46.00 10.50 5.00 0.00 0.00 180.00
1993 0.00 0.00 0.00 0.00 1.00 43.50 118.00 136.50 5.50 5.00 0.00 0.00 309.50
1994 0.00 0.00 0.00 10.00 62.00 119.50 72.50 68.50 59.00 0.00 0.00 0.00 391.50
1995 0.00 0.00 0.00 0.00 0.00 158.50 189.00 219.50 19.50 6.50 0.00 0.00 593.00
1996 0.00 0.00 0.00 0.00 21.50 149.00 97.50 79.00 37.00 0.00 0.00 0.00 384.00
1997 0.00 0.00 0.00 0.00 2.50 123.00 204.50 119.00 57.00 31.50 0.00 0.00 537.50
1998 0.00 0.00 a 0.00 0.00 62.50 73.50 172.00 149.50 101.50 0.00 0.00 0.00 559.00
1999 0.00 0.00 0.00 0.00 20.50 121.50 261.50 96.62 a 47.50 1.50 0.00 a 0.00 549.12
2000 0.00 j 0.00 0.00 0.00 39.00 85.00 206.00 174.50 57.00 4.50 0.00 0.00 566.00
2001 0.00 0.00 0.00 6.50 36.50 132.00 249.50 177.00 26.79 b 0.50 0.00 0.00 628.79
2002 0.00 0.00 0.00 11.50 28.50 209.00 309.50 146.00 79.00 3.50 x 0.00 0.00 783.50
2003 0.00 0.00 0.00 9.00 11.00 89.00 177.00 214.00 38.50 8.50 0.00 0.00 547.00
2004 0.00 0.00 0.00 0.00 21.00 31.00 72.00 56.50 89.00 0.00 0.00 0.00 l 269.50
2005 0.00 0.00 0.00 z 2.00 8.00 152.50 229.50 118.50 96.00 21.50 0.00 0.00 628.00
2006 0.00 0.00 0.00 4.00 51.00 92.50 n 218.00 g 105.50 f 11.50 13.50 y 0.00 z 0.00 z 66.50
2007 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
2008 0.00 0.00 e 0.00 0.00 1.50 56.00 196.50 104.00 38.00 0.00 0.00 0.00 b 396.00
2009 0.00 0.00 0.00 3.50 0.00 z 0.00 z 0.00 z 92.50 35.50 0.00 0.00 0.00 b 131.50
2010 0.00 f 0.00 b 0.00 e 1.50 60.50 112.50 217.50 265.50 10.50 6.50 0.00 0.00 a 674.50
2011 0.00 0.00 0.00 a 0.00 a 23.00 110.77 d 338.50 142.50 35.17 a 15.50 0.00 a 0.00 665.44
2012 0.00 a 0.00 2.21 c 6.50 59.00 181.61 b 397.83 a 167.50 60.54 b 0.00 0.00 0.00 a 875.19
2013 0.00 a 0.00 0.00 b 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 0.07 3.07 33.01 123.01 219.10 171.89 57.38 5.84 0.00 0.00 604.09
S.D. 0.00 0.00 0.50 4.78 26.64 56.72 82.12 75.17 40.49 8.67 0.00 0.00 185.57
SKEW 0.00 0.00 7.82 1.62 0.63 0.45 0.60 0.59 0.93 2.22 0.00 0.00 0.18
MAX 0.00 0.00 4.50 19.50 98.00 279.00 485.50 395.50 190.00 49.00 0.00 0.00 1180.00
MIN 0.00 0.00 0.00 0.00 0.00 31.00 22.00 39.50 1.00 0.00 0.00 0.00 180.00
NO YRS 96 100 98 99 101 99 97 99 102 99 101 98 76