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
1904 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 37.00 n 45.50 35.50 1.50 0.00 0.00 0.00 82.50
1905 0.00 0.00 0.00 0.00 0.00 21.00 75.00 92.50 30.50 3.00 0.00 0.00 222.00
1906 0.00 0.00 0.00 0.00 7.50 27.50 95.00 133.00 41.50 0.00 0.00 0.00 304.50
1907 0.00 0.00 0.00 0.00 0.00 48.00 62.50 96.00 12.00 0.00 0.00 0.00 218.50
1908 0.00 0.00 0.00 2.00 1.55 a 57.50 145.00 65.50 87.50 0.50 0.00 0.00 359.55
1909 0.00 0.00 0.00 0.00 6.50 63.00 119.50 174.00 12.50 3.00 0.00 b 0.00 378.50
1910 0.00 0.00 0.00 0.00 0.00 178.00 100.50 48.00 19.00 2.50 0.00 0.00 348.00
1911 0.00 0.00 0.00 0.00 53.50 150.00 125.50 53.50 10.50 0.00 0.00 0.00 393.00
1912 0.00 0.00 0.00 0.00 3.50 54.00 136.00 24.50 70.00 c 0.00 a 0.00 0.00 288.00
1913 0.00 0.00 0.00 a 4.00 4.00 134.00 95.00 126.00 51.50 0.00 a 0.00 0.00 414.50
1914 0.00 0.00 0.00 0.00 33.00 35.00 223.50 79.00 19.00 5.50 0.00 0.00 a 395.00
1915 0.00 0.00 0.00 10.00 4.50 16.50 49.60 a 53.00 13.50 0.00 0.00 0.00 147.10
1916 0.00 0.00 0.00 0.00 0.00 4.50 311.00 159.00 22.50 0.00 0.00 a 0.00 497.00
1917 0.00 0.00 0.00 0.00 f 3.50 31.50 188.00 64.00 7.00 0.00 0.00 0.00 294.00
1918 0.00 0.00 0.00 0.00 29.50 58.50 142.00 146.50 0.00 0.00 0.00 0.00 376.50
1919 0.00 0.00 0.00 0.00 26.50 143.50 219.50 83.50 35.50 0.00 0.00 0.00 508.50
1920 0.00 0.00 0.00 0.00 16.50 104.00 122.50 99.50 48.00 0.00 0.00 0.00 390.50
1921 0.00 0.00 0.00 3.50 47.00 202.50 319.50 115.00 47.50 0.00 0.00 0.00 735.00
1922 0.00 0.00 0.00 f 0.00 21.00 81.00 111.00 181.00 76.50 13.50 0.00 0.00 484.00
1923 0.00 0.00 0.00 3.50 13.00 166.50 212.00 73.50 41.00 0.50 0.00 0.00 510.00
1924 0.00 0.00 0.00 0.00 0.00 25.86 a 121.00 83.00 0.00 0.00 0.00 0.00 229.86
1925 0.00 0.00 0.00 0.00 26.00 89.00 135.50 186.00 66.50 0.00 0.00 0.00 503.00
1926 0.00 a 0.00 0.00 0.00 33.50 43.00 173.00 80.50 12.50 0.00 0.00 0.00 c 342.50
1927 0.00 0.00 0.00 0.00 2.00 91.50 93.50 30.00 96.50 0.00 0.00 0.00 313.50
1928 0.00 0.00 0.00 0.00 11.50 11.50 144.00 132.50 4.00 5.00 0.00 0.00 308.50
1929 0.00 0.00 0.00 0.00 21.00 55.50 198.00 122.00 58.00 0.00 0.00 0.00 454.50
1930 0.00 0.00 a 0.00 0.00 14.50 78.00 190.00 176.00 33.50 16.50 0.00 0.00 a 508.50
1931 0.00 0.00 0.00 0.50 23.00 204.50 247.00 117.50 108.00 2.00 0.00 0.00 702.50
1932 0.00 0.00 0.00 0.00 20.00 121.00 319.50 202.00 10.50 0.00 0.00 0.00 673.00
1933 0.00 0.00 0.00 0.00 12.00 332.00 309.00 159.00 74.50 0.00 0.00 0.00 886.50
1934 0.00 0.00 0.00 6.50 103.50 124.00 201.50 143.12 a 3.00 1.00 0.00 0.00 582.62
1935 0.00 0.00 0.00 0.00 0.00 20.50 299.00 154.00 17.00 0.00 0.00 0.00 490.50
1936 0.00 0.00 0.00 a 0.00 23.50 49.50 344.00 168.50 56.50 0.00 0.00 0.00 642.00
1937 0.00 0.00 0.00 0.00 19.00 57.00 194.00 251.50 59.00 0.00 0.00 0.00 580.50
1938 0.00 0.00 0.00 0.00 3.50 50.50 146.50 173.00 8.00 2.00 0.00 0.00 383.50
1939 0.00 0.00 0.00 0.00 24.00 61.50 180.00 110.50 70.50 0.00 0.00 0.00 446.50
1940 0.00 a 0.00 0.00 0.00 6.50 50.00 198.50 90.00 59.00 0.00 0.00 0.00 404.00
1941 0.00 0.00 0.00 0.00 25.00 102.00 198.00 129.00 33.50 0.00 0.00 0.00 487.50
1942 0.00 0.00 0.00 0.00 8.00 38.00 104.50 110.00 16.00 0.00 a 0.00 0.00 276.50
1943 0.00 0.00 0.00 0.00 5.00 134.00 227.50 157.00 16.00 0.00 0.00 0.00 539.50
1944 0.00 0.00 0.00 0.00 47.50 96.50 144.50 153.50 17.00 0.00 0.00 0.00 459.00
1945 0.00 0.00 0.00 0.00 0.00 33.50 115.50 108.00 40.00 0.00 0.00 0.00 297.00
1946 0.00 0.00 0.00 0.00 0.50 78.00 163.00 67.00 21.00 0.00 0.00 0.00 329.50
1947 0.00 0.00 0.00 0.00 0.00 52.50 273.00 315.00 75.50 17.00 0.00 0.00 733.00
1948 0.00 0.00 0.00 3.00 15.00 55.34 a 206.00 167.50 99.00 0.00 0.00 0.00 545.84
1949 0.00 0.00 0.00 0.00 40.50 165.00 236.12 a 226.00 8.50 0.00 0.00 0.00 676.12
1950 0.00 0.00 0.00 0.00 12.50 104.00 123.00 99.50 10.50 0.00 0.00 0.00 349.50
1951 0.00 0.00 0.00 0.00 25.50 29.50 159.65 a 53.00 4.50 0.00 0.00 0.00 272.15
1952 0.00 0.00 0.00 14.00 14.50 122.00 214.00 98.50 72.50 0.00 0.00 0.00 535.50
1953 0.00 0.00 0.00 0.00 20.00 154.00 176.50 187.50 45.00 14.50 0.00 0.00 a 597.50
1954 0.00 0.00 a 0.00 0.00 3.00 137.50 191.50 84.50 12.50 0.00 0.00 0.00 429.00
1955 0.00 0.00 0.00 0.50 37.50 103.50 338.50 248.00 35.50 0.50 0.00 0.00 764.00
1956 0.00 0.00 0.00 0.00 24.00 136.00 86.00 126.50 6.00 7.50 0.00 0.00 386.00
1957 0.00 0.00 0.00 0.00 7.50 44.50 278.50 136.00 16.50 0.00 0.00 0.00 483.00
1958 0.00 0.00 0.00 1.50 25.50 20.00 114.00 189.00 38.50 0.00 0.00 0.00 388.50
1959 0.00 a 0.00 0.00 0.00 45.50 161.00 231.00 249.00 57.50 0.00 0.00 0.00 744.00
1960 0.00 0.00 0.00 a 0.00 2.50 34.00 215.00 220.50 99.00 0.00 0.00 0.00 571.00
1961 0.00 0.00 0.00 0.00 13.00 99.00 156.50 200.98 a 68.50 0.00 0.00 0.00 537.98
1962 0.00 0.00 0.00 1.50 38.50 76.50 80.00 100.50 8.00 4.00 0.00 0.00 309.00
1963 0.00 0.00 0.00 0.00 17.50 146.50 231.00 115.50 20.50 2.50 0.00 0.00 533.50
1964 0.00 0.00 0.00 0.00 41.00 115.00 248.50 109.00 33.00 0.00 0.00 0.00 546.50
1965 0.00 0.00 0.00 0.00 6.00 41.50 96.00 99.00 2.50 4.00 0.00 0.00 249.00
1966 0.00 0.00 0.00 0.00 4.00 119.00 271.00 97.00 27.50 0.00 0.00 0.00 518.50
1967 0.00 0.00 0.00 0.00 1.50 39.00 147.50 78.00 16.00 0.00 0.00 0.00 282.00
1968 0.00 0.00 0.00 0.00 1.50 60.00 158.50 147.00 22.00 13.50 0.00 0.00 402.50
1969 0.00 0.00 0.00 0.00 56.50 16.50 153.50 170.50 31.00 4.50 0.00 0.00 432.50
1970 0.00 0.00 0.00 0.00 21.50 119.00 218.00 135.50 65.50 6.50 0.00 0.00 566.00
1971 0.00 0.00 0.00 0.00 1.50 135.50 62.00 75.00 66.00 9.00 0.00 0.00 349.00
1972 0.00 0.00 0.00 0.00 49.50 60.00 117.00 134.50 7.00 0.00 0.00 0.00 368.00
1973 0.00 0.00 0.00 0.00 0.00 59.50 153.50 174.00 40.50 2.50 0.00 0.00 430.00
1974 0.00 0.00 0.00 2.50 7.00 39.00 242.00 67.00 0.50 0.50 0.00 0.00 358.50
1975 0.00 0.00 0.00 0.00 32.50 94.50 249.00 118.50 7.50 0.00 0.00 0.00 502.00
1976 0.00 0.00 0.00 7.50 5.00 100.50 208.50 203.50 52.00 0.00 0.00 b 0.00 577.00
1977 0.00 0.00 0.00 4.50 84.50 67.50 203.50 25.00 5.50 0.00 0.00 0.00 390.50
1978 0.00 0.00 0.00 0.00 35.50 58.50 126.00 105.92 a 71.00 0.00 a 0.00 0.00 396.92
1979 0.00 0.00 0.00 0.00 11.50 41.50 109.50 55.00 26.00 0.00 0.00 0.00 243.50
1980 0.00 0.00 0.00 z 10.00 28.50 44.50 160.50 116.50 0.00 z 0.00 c 0.00 0.00 360.00
1981 0.00 0.00 0.00 0.00 5.00 19.00 131.00 97.50 6.50 0.00 0.00 i 0.00 259.00
1982 0.00 0.00 0.00 1.00 16.50 4.50 124.00 a 94.00 13.50 0.00 0.00 a 0.00 253.50
1983 0.00 z 0.00 0.00 0.00 0.00 77.00 220.21 b 169.00 30.50 0.00 0.00 0.00 496.71
1984 0.00 0.00 0.00 0.00 2.50 25.50 58.50 77.00 0.00 0.00 b 0.00 0.00 163.50
1985 0.00 0.00 b 0.00 2.50 19.00 30.50 80.08 a 22.50 20.00 c 0.00 0.00 d 0.00 e 174.58
1986 0.00 0.00 0.00 0.00 18.00 62.50 110.50 17.00 2.14 b 0.00 b 0.00 0.00 210.14
1987 0.00 a 0.00 0.00 5.00 23.50 90.00 a 199.50 50.12 a 0.00 z 0.00 z 0.00 z 0.00 368.12
1988 0.00 g 0.00 z 0.00 0.00 z 30.50 69.50 136.92 a 87.32 a 6.00 0.00 0.00 0.00 330.23
1989 0.00 0.00 0.00 0.00 11.50 71.00 225.00 97.00 13.00 3.50 0.00 a 0.00 421.00
1990 0.00 0.00 0.00 17.50 0.00 57.00 82.00 85.50 45.50 0.00 0.00 0.00 287.50
1991 0.00 0.00 0.00 0.00 65.50 114.50 104.00 132.00 24.50 0.00 0.00 0.00 440.50
1992 0.00 0.00 0.00 y 0.00 z 32.00 45.00 28.00 0.00 z 2.50 0.50 0.00 0.00 108.00
1993 0.00 0.00 0.00 0.00 9.00 60.00 113.00 131.00 2.00 0.00 0.00 0.00 315.00
1994 0.00 0.00 0.00 1.00 30.50 101.50 107.50 68.00 45.00 0.00 0.00 0.00 353.50
1995 0.00 0.00 0.00 0.00 0.00 180.00 157.00 179.50 32.00 2.00 0.00 0.00 550.50
1996 0.00 0.00 0.00 0.00 6.50 83.00 88.50 0.00 z 0.00 z 0.00 0.00 0.00 178.00
1997 0.00 0.00 0.00 0.00 0.00 94.50 142.00 56.50 24.50 4.00 0.00 0.00 321.50
1998 0.00 0.00 0.00 0.00 z 38.50 69.50 0.00 z 137.00 0.00 z 0.00 z 0.00 0.00 z 245.00
1999 0.00 0.00 0.00 0.00 21.00 100.50 208.50 76.00 33.00 0.00 0.00 0.00 439.00
2000 0.00 0.00 0.00 a 0.00 25.50 32.14 b 137.43 a 110.00 9.00 0.00 0.00 0.00 314.08
2001 0.00 0.00 0.00 6.00 0.00 z 103.50 192.50 175.00 17.00 0.00 0.00 0.00 494.00
2002 0.00 z 0.00 0.00 3.00 12.50 106.50 215.50 77.50 60.50 0.00 0.00 0.00 475.50
2003 0.00 0.00 0.00 0.00 2.00 50.00 130.00 174.00 47.00 5.00 0.00 0.00 408.00
2004 0.00 0.00 0.00 0.00 0.00 21.50 91.97 a 30.50 61.50 0.00 0.00 0.00 205.47
2005 0.00 0.00 0.00 1.00 1.50 121.50 207.00 113.00 0.00 z 6.00 0.00 0.00 450.00
2006 0.00 0.00 0.00 0.00 42.00 63.00 255.50 101.50 11.00 1.00 0.00 0.00 474.00
2007 0.00 0.00 0.00 0.00 31.00 121.00 201.00 106.50 54.50 10.00 0.00 0.00 524.00
2008 0.00 0.00 0.00 0.00 0.00 27.50 174.50 84.00 30.00 3.00 0.00 0.00 319.00
2009 0.00 0.00 0.00 0.00 7.50 91.00 31.00 58.50 34.50 0.00 0.00 0.00 222.50
2010 0.00 0.00 0.00 0.00 43.00 55.50 177.00 190.50 2.00 0.00 0.00 0.00 468.00
2011 0.00 0.00 0.00 0.00 5.00 47.00 269.00 113.50 36.00 11.50 0.00 0.00 482.00
2012 0.00 0.00 5.17 a 0.00 30.50 102.00 283.50 95.00 37.50 0.00 0.00 0.00 553.67
2013 0.00 0.00 0.00 a 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 0.05 1.08 18.32 80.30 169.09 119.07 32.50 1.76 0.00 0.00 428.38
S.D. 0.00 0.00 0.50 2.86 18.77 51.82 71.39 56.29 26.51 3.73 0.00 0.00 147.57
SKEW 0.00 0.00 10.15 3.59 1.62 1.42 0.35 0.65 0.81 2.57 0.00 0.00 0.51
MAX 0.00 0.00 5.17 17.50 103.50 332.00 344.00 315.00 108.00 17.00 0.00 0.00 886.50
MIN 0.00 0.00 0.00 0.00 0.00 4.50 28.00 17.00 0.00 0.00 0.00 0.00 147.10
NO YRS 106 108 106 104 107 108 108 107 104 107 107 108 95