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
1901 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 124.00 p 85.00 26.50 1.00 0.00 0.00 112.50
1902 0.00 0.00 0.00 0.00 20.50 4.50 109.50 14.50 v 0.00 0.00 0.00 0.00 134.50
1903 0.00 0.00 0.00 0.00 12.50 18.50 60.50 27.00 7.00 0.00 0.00 0.00 125.50
1904 0.00 0.00 0.00 0.00 6.50 40.71 b 62.57 d 22.50 4.00 0.00 0.00 0.00 136.29
1905 0.00 0.00 0.00 0.00 2.50 18.00 57.50 63.50 24.50 0.50 i 0.00 0.00 166.00
1906 0.00 0.00 0.00 0.00 9.50 37.50 110.57 a 110.50 73.50 0.00 a 0.00 0.00 341.57
1907 0.00 0.00 0.00 0.00 0.00 80.50 26.35 a 20.50 16.50 0.00 0.00 0.00 143.85
1908 0.00 h 0.00 a 0.00 p 0.00 a 2.50 66.00 120.50 60.50 84.50 2.07 a 0.00 0.00 336.07
1909 0.00 a 0.00 0.00 0.00 4.50 74.50 61.50 129.50 7.00 3.00 0.00 0.00 a 280.00
1910 0.00 h 0.00 d 0.50 0.00 a 0.00 h 184.66 a 130.00 67.96 e 1.55 a 4.50 0.00 e 0.00 e 389.17
1911 0.00 b 0.00 l 0.00 v 0.00 45.00 112.24 a 128.50 47.50 6.00 0.00 0.00 0.00 339.24
1912 0.00 0.00 0.00 a 0.00 9.50 67.24 a 108.50 8.00 54.50 3.50 0.00 a 0.00 251.24
1913 0.00 0.00 0.00 a 2.07 a 5.00 105.00 e 59.42 a 95.00 51.50 0.00 0.00 0.00 317.99
1914 0.00 0.00 0.00 0.00 22.00 43.00 131.00 39.50 26.50 0.00 0.00 a 0.00 262.00
1915 0.00 0.00 0.00 6.00 0.00 14.50 31.00 30.00 23.50 0.00 0.00 0.00 105.00
1916 0.00 0.00 0.00 0.00 0.00 0.00 274.00 112.00 2.50 0.00 0.00 0.00 b 388.50
1917 0.00 0.00 0.00 0.00 2.50 0.00 123.00 17.00 5.50 0.00 0.00 0.00 a 148.00
1918 0.00 0.00 0.00 0.00 16.50 11.79 b 58.50 43.50 0.00 0.00 0.00 0.00 130.29
1919 0.00 0.00 0.00 0.00 40.00 66.50 f 103.00 47.00 23.00 0.00 0.00 0.00 a 213.00
1920 0.00 0.00 0.00 0.00 0.50 60.00 46.00 36.50 40.50 2.07 a 0.00 0.00 185.57
1921 0.00 0.00 0.00 1.50 28.00 148.50 201.00 26.50 26.50 0.00 0.00 0.00 432.00
1922 0.00 0.00 0.00 0.00 49.50 53.50 g 65.00 110.00 68.00 16.50 0.00 0.00 309.00
1923 0.00 c 0.00 d 0.00 2.00 23.50 129.50 145.00 33.50 22.50 0.00 0.00 0.00 356.00
1924 0.00 0.00 0.00 0.00 0.00 8.00 74.00 76.90 e 0.50 0.00 0.00 0.00 159.40
1925 0.00 0.00 a 0.00 0.00 21.50 92.00 110.00 156.00 27.00 0.00 0.00 0.00 406.50
1926 0.00 0.00 0.00 a 0.00 21.50 23.00 114.00 35.00 3.00 0.00 a 0.00 0.00 196.50
1927 0.00 0.00 0.00 0.00 0.00 64.50 29.50 j 5.00 104.00 0.00 e 0.00 d 0.00 173.50
1928 0.00 0.00 0.00 0.00 3.50 10.50 86.50 72.50 1.07 b 7.50 0.00 0.00 181.57
1929 0.00 0.00 0.00 0.00 23.00 58.50 140.50 71.00 51.00 0.00 a 0.00 0.00 344.00
1930 0.00 0.00 0.00 0.00 28.00 55.00 133.50 133.00 23.50 15.00 0.00 0.00 388.00
1931 0.00 0.00 0.00 0.00 19.00 149.00 212.00 78.50 96.50 0.00 0.00 0.00 555.00
1932 0.00 0.00 0.00 0.00 21.50 71.00 125.00 106.50 4.50 0.00 0.00 0.00 328.50
1933 0.00 0.00 0.00 0.00 9.00 148.50 180.00 58.00 11.50 0.00 0.00 0.00 407.00
1934 0.00 0.00 0.00 5.00 h 38.00 66.00 145.50 62.50 4.00 1.00 0.00 0.00 317.00
1935 0.00 0.00 0.00 0.00 0.00 3.50 238.00 123.00 16.00 0.00 0.00 0.00 380.50
1936 0.00 0.00 0.00 a 0.00 24.28 a 16.00 247.50 114.50 38.00 0.00 0.00 0.00 440.28
1937 0.00 0.00 0.00 0.00 25.32 a 54.50 170.00 205.50 52.00 0.00 0.00 0.00 507.32
1938 0.00 0.00 0.00 3.50 0.00 38.50 79.00 169.50 8.00 7.50 0.00 0.00 306.00
1939 0.00 0.00 0.00 0.00 35.00 98.50 169.00 80.17 b 75.50 0.00 0.00 0.00 458.17
1940 0.00 0.00 0.00 0.00 4.50 37.00 164.00 104.00 69.50 0.00 0.00 0.00 379.00
1941 0.00 0.00 0.00 8.00 40.50 103.50 210.00 101.00 39.00 0.00 0.00 0.00 502.00
1942 0.00 0.00 0.00 10.00 5.50 51.00 99.50 93.00 19.50 0.00 0.00 a 0.00 a 278.50
1943 0.00 l 0.00 e 0.00 0.00 b 4.13 a 93.00 151.00 101.61 d 1.00 f 0.00 0.00 0.00 349.74
1944 0.00 0.00 0.00 0.00 43.00 73.50 103.33 a 140.50 16.00 0.00 0.00 0.00 376.33
1945 0.00 0.00 0.00 0.50 0.00 30.00 78.00 82.00 53.50 0.00 0.00 0.00 244.00
1946 0.00 0.00 0.00 0.00 12.50 72.00 136.50 68.50 32.07 a 1.00 0.00 0.00 322.57
1947 0.00 0.00 0.00 0.00 0.00 49.00 147.00 285.50 57.50 21.00 h 0.00 0.00 539.00
1948 0.00 0.00 0.00 12.00 11.00 38.50 154.00 145.00 67.50 0.00 0.00 0.00 428.00
1949 0.00 0.00 0.00 0.00 a 25.32 a 129.00 166.37 a 165.00 1.50 0.00 0.00 0.00 487.18
1950 0.00 0.00 0.00 0.00 13.00 82.50 54.00 25.50 0.00 8.50 0.00 0.00 183.50
1951 0.00 0.00 0.00 a 0.00 28.42 a 11.00 116.25 a 21.50 5.50 0.50 0.00 b 0.00 183.17
1952 0.00 0.00 0.00 a 4.50 12.50 77.00 183.00 79.57 a 75.00 0.00 0.00 0.00 431.57
1953 0.00 0.00 0.00 0.00 22.00 75.00 123.50 146.00 0.00 u 9.00 0.00 e 0.00 375.50
1954 0.00 0.00 0.00 a 0.00 3.50 106.55 a 94.50 51.50 1.50 0.00 0.00 0.00 257.55
1955 0.00 0.00 0.00 d 0.00 10.16 b 53.57 b 0.00 z 171.61 c 16.73 d 0.00 z 0.00 z 0.00 252.06
1956 0.00 0.00 0.00 a 0.00 2.50 100.50 36.00 65.00 1.50 3.50 0.00 a 0.00 209.00
1957 0.00 a 0.00 a 0.00 0.50 4.50 47.50 147.00 94.00 21.00 0.00 0.00 0.00 314.50
1958 0.00 0.00 0.00 1.00 9.00 18.00 69.50 87.50 19.50 0.00 0.00 0.00 204.50
1959 0.00 0.00 a 0.00 0.00 21.50 88.50 139.50 149.83 a 36.50 0.00 0.00 0.00 435.83
1960 0.00 0.00 0.00 0.00 0.00 19.50 102.50 107.00 65.50 0.00 0.00 0.00 294.50
1961 0.00 0.00 0.00 0.00 5.50 80.89 b 85.50 113.50 53.00 4.50 0.00 0.00 342.89
1962 0.00 0.00 0.00 0.00 49.50 36.50 38.50 75.50 9.50 9.00 0.00 0.00 218.50
1963 0.00 0.00 0.00 0.00 2.50 107.00 166.50 51.50 12.00 10.50 0.00 0.00 350.00
1964 0.00 0.00 0.00 0.00 31.50 83.00 168.00 69.50 11.50 0.00 0.00 0.00 363.50
1965 0.00 0.00 0.00 0.00 10.00 0.00 z 63.50 68.00 2.00 5.50 0.00 0.00 149.00
1966 0.00 0.00 0.00 0.00 3.00 110.00 202.50 71.50 25.00 0.00 0.00 0.00 412.00
1967 0.00 0.00 0.00 0.00 7.00 28.50 82.50 51.50 11.00 0.00 0.00 0.00 180.50
1968 0.00 0.00 0.00 0.00 2.00 45.50 122.50 100.50 11.00 20.50 0.00 0.00 302.00
1969 0.00 0.00 0.00 0.00 38.50 17.00 95.00 143.00 34.00 3.21 b 0.00 0.00 330.71
1970 0.00 0.00 0.00 10.00 12.00 105.50 199.50 118.50 63.50 3.00 0.00 0.00 512.00
1971 0.00 0.00 0.00 0.00 0.00 114.31 a 27.00 o 52.50 59.00 8.50 0.00 0.00 234.31
1972 0.00 0.00 0.00 0.00 60.00 34.00 71.50 95.50 1.03 a 0.00 0.00 0.00 262.03
1973 0.00 0.00 0.00 1.00 0.00 n 29.00 j 72.00 j 107.47 a 39.00 0.00 0.00 0.00 147.47
1974 0.00 0.00 0.00 a 0.00 a 7.50 24.50 144.48 c 36.50 0.00 0.50 0.00 0.00 213.48
1975 0.00 0.00 0.00 0.00 33.00 58.00 142.50 57.00 0.00 0.00 0.00 0.00 290.50
1976 0.00 0.00 a 0.00 3.50 0.00 62.00 76.50 122.50 31.55 a 3.00 0.00 0.00 299.05
1977 0.00 0.00 c 0.00 5.00 70.00 20.50 118.50 11.50 0.00 0.00 0.00 0.00 225.50
1978 0.00 0.00 0.00 0.00 27.00 37.50 60.00 79.00 50.50 0.00 0.00 0.00 254.00
1979 0.00 0.00 0.00 0.00 4.00 29.50 92.00 20.00 11.50 0.00 0.00 0.00 157.00
1980 0.00 0.00 0.00 0.00 z 0.00 z 21.50 i 68.20 a 29.00 0.00 0.00 0.00 0.00 97.20
1981 0.00 0.00 0.00 0.00 0.50 26.50 86.00 76.00 3.00 0.00 0.00 0.00 192.00
1982 0.00 0.00 0.00 0.00 16.00 0.00 95.00 31.00 12.00 0.00 0.00 0.00 154.00
1983 0.00 0.00 0.00 0.00 0.00 68.00 195.00 109.50 42.00 0.00 0.00 0.00 414.50
1984 0.00 0.00 0.00 0.00 0.00 45.00 60.00 110.00 2.50 0.00 0.00 0.00 217.50
1985 0.00 0.00 0.00 5.00 4.00 25.50 56.00 35.50 29.00 0.00 0.00 j 0.00 155.00
1986 0.00 0.00 0.00 5.00 22.73 a 37.00 130.00 24.00 13.00 0.00 0.00 0.00 231.73
1987 0.00 0.00 0.00 9.00 25.00 94.00 135.50 64.50 26.00 0.00 0.00 0.00 354.00
1988 0.00 b 0.00 0.00 a 0.00 43.50 101.50 156.50 127.00 4.00 0.50 0.00 z 0.00 433.00
1989 0.00 0.00 a 0.00 0.00 6.50 27.41 a 107.50 68.50 7.00 0.00 0.00 0.00 216.91
1990 0.00 0.00 0.00 24.50 0.00 27.50 64.00 53.50 6.00 0.00 0.00 0.00 175.50
1991 0.00 0.00 0.00 0.00 48.50 62.00 66.50 95.50 7.00 0.00 0.00 0.00 279.50
1992 0.00 0.00 0.00 0.00 22.00 15.00 2.00 26.50 1.00 0.00 0.00 0.00 66.50
1993 0.00 0.00 0.00 0.00 9.00 25.50 55.50 77.50 0.00 0.00 0.00 0.00 167.50
1994 0.00 0.00 0.00 0.00 20.00 57.50 45.50 20.50 19.00 0.00 0.00 0.00 162.50
1995 0.00 0.00 0.00 0.00 0.00 120.00 93.50 110.50 16.50 1.00 0.00 0.00 341.50
1996 0.00 0.00 0.00 0.00 5.00 62.50 29.50 61.00 31.00 0.00 0.00 0.00 189.00
1997 0.00 0.00 0.00 0.00 0.00 64.50 82.00 28.00 7.50 2.00 0.00 0.00 184.00
1998 0.00 0.00 0.00 0.00 28.50 85.50 108.00 96.00 48.50 0.00 0.00 0.00 366.50
1999 0.00 0.00 0.00 0.00 15.50 64.50 150.00 40.00 46.00 0.00 0.00 0.00 316.00
2000 0.00 0.00 0.00 0.00 20.50 3.00 70.50 47.00 15.50 0.00 0.00 0.00 156.50
2001 0.00 0.00 0.00 3.00 4.50 97.50 120.50 118.00 20.50 0.00 0.00 0.00 364.00
2002 0.00 0.00 0.00 4.50 14.00 72.00 195.50 56.50 44.00 0.00 0.00 0.00 386.50
2003 0.00 0.00 0.00 0.00 0.00 38.00 88.50 106.50 48.00 1.50 0.00 0.00 282.50
2004 0.00 0.00 0.00 0.00 0.00 17.50 69.50 14.00 36.50 0.00 0.00 0.00 137.50
2005 0.00 0.00 0.00 0.00 0.00 81.50 149.50 85.00 44.50 0.00 z 0.00 0.00 360.50
2006 0.00 0.00 0.00 0.00 43.50 54.50 210.50 73.50 3.50 0.00 0.00 0.00 385.50
2007 0.00 0.00 0.00 0.00 27.50 93.50 142.00 104.00 43.00 14.50 0.00 0.00 424.50
2008 0.00 0.00 0.00 a 0.00 0.00 21.00 70.50 45.00 29.00 0.00 0.00 0.00 165.50
2009 0.00 0.00 0.00 0.00 5.00 63.00 13.50 53.50 10.00 0.00 0.00 0.00 145.00
2010 0.00 0.00 0.00 0.00 45.00 30.50 124.00 141.00 3.50 0.00 0.00 0.00 a 344.00
2011 0.00 0.00 0.00 a 0.00 0.00 34.00 183.00 63.00 12.00 7.00 0.00 0.00 299.00
2012 0.00 0.00 3.50 0.00 9.50 74.50 170.00 54.00 13.00 0.00 j 0.00 z 0.00 z 324.50
Period of Record Statistics
MEAN 0.00 0.00 0.04 1.12 15.21 58.62 114.36 78.88 25.27 1.69 0.00 0.00 289.20
S.D. 0.00 0.00 0.34 3.26 15.80 38.51 53.99 46.29 24.15 3.83 0.00 0.00 110.86
SKEW 0.00 0.00 10.01 4.43 1.11 0.65 0.44 1.07 1.05 2.83 0.00 0.00 0.20
MAX 0.00 0.00 3.50 24.50 70.00 184.66 274.00 285.50 104.00 20.50 0.00 0.00 555.00
MIN 0.00 0.00 0.00 0.00 0.00 0.00 2.00 5.00 0.00 0.00 0.00 0.00 66.50
NO YRS 108 110 109 109 108 106 107 111 110 107 108 111 90