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
1898 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 3.00 0.00 z 0.00 3.00
1899 0.00 0.00 0.00 14.00 23.00 120.50 216.00 234.50 65.00 16.00 0.00 0.00 689.00
1900 0.00 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 17.00 0.00 0.00 h 17.00
1901 0.00 0.00 a 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 a 0.00 i 0.00
1902 0.00 a 0.00 h 0.00 0.00 z 56.26 d 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 0.00 56.26
1903 0.00 a 0.00 0.00 0.00 34.50 72.00 177.00 97.00 16.00 1.55 a 0.00 0.00 398.05
1904 0.00 0.00 0.00 0.00 17.71 c 65.36 b 157.00 110.00 32.50 0.00 0.00 0.00 382.57
1905 0.00 0.00 0.00 0.00 3.00 112.50 173.00 258.00 60.00 14.00 0.00 a 0.00 a 620.50
1906 0.00 a 0.00 a 0.00 0.00 a 46.00 102.00 e 189.50 247.00 93.50 0.00 0.00 0.00 s 678.00
1907 0.00 i 0.00 c 0.00 0.00 0.00 101.00 228.00 156.00 48.50 2.00 0.00 0.00 535.50
1908 0.00 0.00 0.00 0.00 25.00 78.00 215.50 130.50 172.50 3.50 0.00 0.00 625.00
1909 0.00 0.00 0.00 0.00 5.00 100.50 195.00 292.00 37.50 5.50 0.00 0.00 635.50
1910 0.00 n 0.00 w 2.00 15.52 a 6.00 k 198.00 249.00 164.00 31.50 23.25 a 0.00 0.00 683.27
1911 0.00 0.00 0.00 0.00 124.50 277.00 239.00 141.00 49.00 0.00 0.00 0.00 830.50
1912 0.00 0.00 0.00 0.00 28.50 94.50 224.00 115.00 107.00 2.00 0.00 0.00 571.00
1913 0.00 0.00 0.00 1.00 46.00 210.00 224.00 262.50 113.00 5.50 0.00 0.00 862.00
1914 0.00 0.00 a 0.00 0.00 62.50 126.00 331.50 202.61 c 20.69 a 26.50 0.00 0.00 769.80
1915 0.00 0.00 0.00 3.75 b 19.00 44.00 118.50 108.50 36.50 0.00 0.00 0.00 c 330.25
1916 0.00 a 0.00 0.00 0.00 21.00 51.00 433.00 254.00 73.50 7.00 0.00 0.00 839.50
1917 0.00 a 0.00 0.00 0.00 18.50 73.00 285.00 137.00 19.00 0.00 0.00 0.00 532.50
1918 0.00 0.00 a 0.00 0.00 42.88 a 131.50 202.50 212.50 11.25 b 5.00 m 0.00 z 0.00 z 600.63
1919 0.00 z 0.00 z 0.00 0.00 40.50 228.00 333.00 183.50 98.50 1.50 0.00 0.00 885.00
1920 0.00 0.00 a 0.00 a 0.00 a 15.50 171.72 a 158.00 110.00 81.50 1.00 0.00 0.00 537.72
1921 0.00 0.00 0.00 11.50 58.38 a 301.55 a 389.10 b 179.50 56.50 0.00 b 0.00 b 0.00 996.54
1922 0.00 0.00 0.00 a 0.00 42.50 182.50 162.50 276.00 151.00 30.48 a 0.00 0.00 844.98
1923 0.00 c 0.00 0.00 2.50 22.00 195.50 353.00 139.50 66.50 0.00 0.00 a 0.00 a 779.00
1924 0.00 b 0.00 0.00 a 8.00 6.50 72.00 146.50 183.86 b 3.50 3.50 0.00 0.00 a 423.86
1925 0.00 0.00 0.00 b 14.48 a 64.00 112.00 198.50 202.00 127.00 0.00 a 0.00 0.00 717.98
1926 0.00 0.00 0.00 4.50 77.50 c 65.89 b 251.50 188.50 52.50 0.00 0.00 0.00 640.39
1927 0.00 0.00 0.00 0.00 13.95 a 87.50 140.50 87.00 177.00 5.00 0.00 0.00 510.95
1928 0.00 0.00 b 0.00 0.00 28.00 11.50 226.00 178.50 26.00 21.00 0.00 0.00 491.00
1929 0.00 0.00 0.00 3.00 35.43 c 100.00 167.00 i 171.50 73.00 2.07 a 0.00 0.00 385.00
1930 0.00 0.00 0.00 0.00 30.47 b 98.00 345.50 266.50 67.50 18.00 0.00 0.00 825.97
1931 0.00 0.00 0.00 7.00 38.50 288.00 318.00 223.00 193.00 9.00 0.00 0.00 1076.50
1932 0.00 0.00 0.00 0.50 26.50 166.00 269.50 195.00 18.00 6.50 0.00 0.00 682.00
1933 0.00 0.00 0.00 0.00 40.50 366.00 315.00 142.50 124.00 1.50 0.00 0.00 989.50
1934 0.00 0.00 0.00 8.50 235.50 269.00 337.50 195.50 22.00 9.00 0.00 0.00 1077.00
1935 0.00 0.00 0.00 0.00 0.00 73.50 403.00 251.00 88.50 1.50 0.00 0.00 817.50
1936 0.00 0.00 0.00 0.00 74.40 a 108.00 493.00 324.50 125.00 0.50 0.00 0.00 1125.40
1937 0.00 0.00 0.00 0.00 34.50 93.00 328.50 374.00 118.00 2.50 0.00 0.00 950.50
1938 0.00 0.00 0.00 6.00 33.00 98.50 261.00 278.50 93.50 26.50 1.50 0.00 a 798.50
1939 0.00 0.00 0.00 12.50 103.00 185.00 302.00 179.50 161.50 0.00 0.00 0.00 943.50
1940 0.00 0.00 0.00 0.00 18.50 120.50 303.50 147.00 110.00 1.00 0.00 0.00 a 700.50
1941 0.00 0.00 a 0.00 5.50 102.00 163.45 a 290.50 235.00 81.50 0.00 0.00 0.00 877.95
1942 0.00 0.00 0.00 4.00 23.00 100.50 188.00 157.50 54.50 0.00 0.00 0.00 527.50
1943 0.00 0.00 0.00 0.00 28.00 197.00 244.00 184.50 21.50 2.58 a 0.00 0.00 677.58
1944 0.00 0.00 a 0.00 0.00 69.00 179.50 150.00 167.50 24.50 0.00 0.00 0.00 590.50
1945 0.00 0.00 0.00 0.00 1.00 45.00 164.00 148.50 64.00 0.00 0.00 0.00 422.50
1946 0.00 0.00 0.00 5.50 5.00 154.50 228.50 117.50 38.00 0.50 0.00 0.00 549.50
1947 0.00 0.00 0.00 0.00 1.55 a 60.50 212.50 377.00 145.50 27.00 0.00 0.00 824.05
1948 0.00 0.00 0.00 5.00 20.50 74.50 283.00 218.00 121.00 0.00 0.00 0.00 722.00
1949 0.00 a 0.00 0.00 1.00 43.50 199.00 331.50 243.00 12.50 1.50 0.00 0.00 832.00
1950 0.00 0.00 0.00 0.00 a 9.00 138.50 122.00 97.50 13.00 4.00 0.00 0.00 384.00
1951 0.00 0.00 a 0.00 b 0.50 22.50 33.50 186.50 96.00 4.00 9.00 0.00 0.00 352.00
1952 0.00 0.00 a 0.00 13.00 36.50 183.00 244.50 111.00 73.00 4.00 0.00 0.00 665.00
1953 0.00 0.00 0.00 0.00 31.50 189.50 224.00 224.00 59.00 26.50 0.00 0.00 754.50
1954 0.00 0.00 0.00 5.00 10.00 203.50 277.00 146.50 39.50 0.00 0.00 0.00 681.50
1955 0.00 0.00 0.00 2.00 58.00 105.00 396.00 337.50 76.00 3.50 0.00 0.00 978.00
1956 0.00 0.00 0.00 0.00 48.00 245.00 144.00 198.00 23.50 11.00 0.00 0.00 669.50
1957 0.00 0.00 0.00 1.50 11.50 86.50 343.50 160.00 32.50 0.00 0.00 0.00 635.50
1958 0.00 0.00 0.00 0.00 35.50 35.00 141.50 227.00 37.50 7.50 0.00 0.00 484.00
1959 0.00 0.00 0.00 0.00 46.00 187.50 198.50 289.50 76.50 0.00 0.00 0.00 798.00
1960 0.00 0.00 0.00 8.50 7.00 73.00 215.00 173.50 120.00 3.00 0.00 0.00 600.00
1961 0.00 0.00 0.00 0.00 12.00 139.00 155.50 190.50 57.41 a 1.00 0.00 0.00 555.41
1962 0.00 0.00 0.00 12.00 72.00 95.00 141.00 137.50 12.50 9.00 0.00 0.00 479.00
1963 0.00 0.00 0.00 0.00 18.00 202.50 218.00 144.50 38.00 17.00 0.00 0.00 638.00
1964 0.00 0.00 0.00 3.50 47.50 152.50 294.50 107.00 41.00 0.00 0.00 0.00 646.00
1965 0.00 0.00 0.00 0.00 25.00 83.50 182.50 132.00 2.50 7.50 0.00 0.00 433.00
1966 0.00 0.00 0.00 0.00 12.00 123.00 291.50 115.50 41.50 3.50 0.00 0.00 587.00
1967 0.00 0.00 0.00 0.00 25.00 66.50 164.50 88.50 8.50 2.00 0.00 0.00 355.00
1968 0.00 0.00 0.00 0.00 2.50 141.00 158.00 153.50 16.50 10.50 0.00 0.00 482.00
1969 0.00 0.00 0.00 0.00 47.50 22.50 203.00 178.50 27.50 4.50 0.00 0.00 483.50
1970 0.00 0.00 0.00 11.00 40.00 148.00 215.50 128.50 64.50 4.50 0.00 0.00 612.00
1971 0.00 0.00 0.00 0.00 1.00 215.50 102.50 141.50 72.00 18.00 0.00 0.00 550.50
1972 0.00 0.00 0.00 0.00 70.50 96.50 150.00 194.50 26.50 0.00 0.00 0.00 538.00
1973 0.00 0.00 0.00 0.00 5.00 147.00 207.00 219.00 44.00 4.00 0.00 0.00 626.00
1974 0.00 0.00 0.00 2.00 14.00 98.50 330.50 103.00 18.50 0.00 0.00 0.00 566.50
1975 0.00 0.00 0.00 0.00 65.00 138.00 310.50 213.00 20.50 9.00 0.00 0.00 756.00
1976 0.00 0.00 0.00 11.50 14.00 159.00 279.50 186.50 64.00 3.50 0.00 0.00 718.00
1977 0.00 0.00 0.00 17.50 132.50 163.50 312.50 105.00 38.50 0.00 0.00 0.00 769.50
1978 0.00 0.00 0.00 0.00 51.00 124.50 187.50 172.00 140.50 0.00 0.00 0.00 675.50
1979 0.00 0.00 0.00 0.00 24.50 113.00 216.00 137.00 63.50 0.00 0.00 0.00 554.00
1980 0.00 0.00 0.00 9.50 87.00 143.50 271.50 183.00 48.00 1.00 0.00 0.00 743.50
1981 0.00 0.00 0.00 1.50 10.00 127.00 245.00 152.50 19.00 0.00 0.00 0.00 555.00
1982 0.00 0.00 0.00 0.00 12.00 26.50 239.00 157.00 30.50 0.00 0.00 0.00 465.00
1983 0.00 0.00 0.00 0.00 0.50 120.50 344.50 286.50 74.00 5.50 0.00 0.00 831.50
1984 0.00 0.00 0.00 0.00 9.00 96.00 161.00 231.00 25.50 0.00 0.00 0.00 522.50
1985 0.00 0.00 0.00 26.00 50.00 79.00 196.50 74.50 72.50 0.00 0.00 0.00 498.50
1986 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 150.50 253.50 78.50 23.00 0.00 0.00 0.00 505.50
1987 0.00 0.00 0.00 14.50 93.00 232.00 304.00 139.50 29.00 0.00 0.00 0.00 812.00
1988 0.00 0.00 0.00 0.00 91.00 298.00 297.00 273.50 52.00 0.00 0.00 0.00 1011.50
1989 0.00 0.00 0.00 0.00 22.50 126.50 263.00 161.00 35.50 9.00 0.00 0.00 617.50
1990 0.00 0.00 0.00 22.50 7.00 158.00 174.50 144.00 106.50 5.00 0.00 0.00 617.50
1991 0.00 0.00 0.00 9.50 98.00 216.00 207.00 169.00 65.50 0.00 0.00 0.00 765.00
1992 0.00 0.00 0.00 0.00 47.00 96.50 50.00 64.00 17.00 6.00 0.00 0.00 280.50
1993 0.00 0.00 0.00 0.00 6.00 62.00 146.50 171.50 8.50 5.50 0.00 0.00 400.00
1994 0.00 0.00 0.00 8.00 67.50 158.50 104.50 89.50 73.50 0.00 0.00 0.00 501.50
1995 0.00 0.00 0.00 0.00 0.50 185.00 221.00 266.00 31.50 7.50 0.00 0.00 711.50
1996 0.00 0.00 0.00 0.00 23.00 154.50 136.00 104.50 49.00 0.00 0.00 0.00 467.00
1997 0.00 0.00 0.00 0.00 4.00 162.50 207.00 107.00 46.50 38.00 0.00 0.00 565.00
1998 0.00 0.00 0.00 0.00 79.50 104.50 209.00 179.00 107.00 0.00 0.00 0.00 679.00
1999 0.00 0.00 0.00 0.00 32.50 139.00 297.00 130.00 48.10 a 0.00 0.00 0.00 646.60
2000 0.00 0.00 0.00 0.00 46.50 101.00 193.00 170.00 51.50 6.50 0.00 0.00 568.50
2001 0.00 0.00 0.00 5.50 37.00 147.50 267.63 a 196.85 a 19.50 2.00 0.00 b 0.00 a 675.98
2002 0.00 0.00 0.00 12.50 29.50 194.00 333.50 117.00 86.00 3.50 0.00 0.00 776.00
2003 0.00 0.00 0.00 8.50 11.50 90.50 230.00 234.00 64.00 6.50 0.00 0.00 645.00
2004 0.00 0.00 0.00 0.50 22.50 61.00 161.00 57.50 82.00 1.00 0.00 0.00 385.50
2005 0.00 0.00 0.00 8.00 8.50 212.50 294.50 160.00 96.50 36.00 0.00 0.00 816.00
2006 0.00 0.00 0.00 7.00 79.50 167.00 313.50 180.50 24.50 22.00 0.00 0.00 794.00
2007 0.00 0.00 0.00 5.00 44.00 159.50 206.00 205.50 94.50 25.00 0.00 0.00 a 739.50
2008 0.00 d 0.00 0.00 0.50 8.50 102.50 253.00 162.00 61.00 3.00 0.00 0.00 590.50
2009 0.00 0.00 0.00 6.00 36.00 142.00 115.50 126.00 49.00 0.00 0.00 0.00 474.50
2010 0.00 0.00 0.00 6.00 68.50 124.00 283.00 300.50 22.50 13.50 0.00 0.00 818.00
2011 0.00 0.00 0.00 0.00 25.50 156.50 376.00 209.00 56.50 26.50 0.00 0.00 850.00
2012 0.00 0.00 10.50 0.00 79.00 219.00 410.00 188.50 55.86 a 0.00 0.00 0.00 962.86
2013 0.00 a 0.00 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 z 0.00
Period of Record Statistics
MEAN 0.00 0.00 0.11 3.36 37.61 136.45 239.65 178.60 60.02 6.00 0.01 0.00 662.05
S.D. 0.00 0.00 1.00 5.36 34.50 65.12 80.45 65.39 41.50 8.70 0.14 0.00 181.09
SKEW 0.00 0.00 10.05 1.82 2.24 0.75 0.45 0.70 1.02 1.83 10.49 0.00 0.29
MAX 0.00 0.00 10.50 26.00 235.50 366.00 493.00 377.00 193.00 38.00 1.50 0.00 1125.40
MIN 0.00 0.00 0.00 0.00 0.00 11.50 50.00 57.50 2.50 0.00 0.00 0.00 280.50
NO YRS 111 111 114 111 110 111 110 111 111 114 113 111 104