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
1897 0.00 z 0.00 0.00 6.11 c 38.00 0.00 z 315.37 e 143.08 e 0.00 0.00 z 0.00 z 0.00 502.55
1898 0.00 c 0.00 i 0.00 0.00 10.50 79.50 152.00 59.50 52.00 0.00 0.00 0.00 353.50
1899 0.00 0.00 0.00 0.50 8.00 69.00 206.00 120.00 8.50 0.00 0.00 0.00 z 412.00
1900 0.00 z 0.00 0.00 1.50 33.00 87.00 108.50 0.00 z 42.50 3.00 0.00 0.00 z 275.50
1901 0.00 z 0.00 z 0.00 z 0.00 10.50 80.00 239.00 106.00 8.50 0.00 0.00 z 0.00 z 444.00
1902 0.00 z 0.00 z 0.00 z 0.00 a 31.52 a 0.00 l 164.19 d 47.00 0.58 d 0.00 d 0.00 b 0.00 c 243.28
1903 0.00 0.00 0.00 f 0.00 a 5.34 b 29.46 b 79.22 d 44.43 a 6.72 a 0.00 a 0.00 a 0.00 a 165.19
1904 0.00 a 0.00 0.00 b 0.00 b 3.10 a 20.00 40.82 a 37.20 a 5.50 0.00 0.00 0.00 106.62
1905 0.00 a 0.00 0.00 a 0.00 i 0.00 z 9.00 r 68.50 m 36.50 j 17.68 b 0.00 e 0.00 e 0.00 17.68
1906 0.00 0.00 0.00 b 0.00 5.00 34.50 106.00 122.00 50.69 a 0.00 d 0.00 0.00 318.19
1907 0.00 f 0.00 0.00 0.00 l 0.00 f 18.00 k 78.50 f 81.67 e 10.34 a 0.00 g 0.00 0.00 b 92.02
1908 0.00 0.00 0.00 f 0.00 0.00 b 42.00 134.85 a 45.50 q 44.00 m 0.00 a 0.00 e 0.00 a 176.85
1909 0.00 c 0.00 b 0.00 0.00 c 4.50 66.00 103.33 a 174.00 8.00 0.00 0.00 0.00 355.83
1910 0.00 0.00 0.00 0.00 e 0.00 e 155.50 0.00 z 63.11 c 16.07 b 1.00 0.00 0.00 235.68
1911 0.00 b 0.00 e 0.00 0.00 a 22.65 e 117.86 b 112.00 46.50 3.33 c 0.00 d 0.00 b 0.00 c 302.34
1912 0.00 0.00 a 0.00 a 0.00 2.30 d 34.00 h 0.00 z 0.00 z 0.00 z 0.00 z 0.00 o 0.00 z 2.30
1913 0.00 z 0.00 z 0.00 g 0.00 z 0.00 z 113.00 g 79.22 d 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 79.22
1914 0.00 z 0.00 g 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
1915 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
1916 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 15.50 0.00 0.00 0.00 15.50
1917 0.00 0.00 0.00 0.00 3.50 35.50 180.50 47.00 10.00 0.00 0.00 0.00 276.50
1918 0.00 0.00 0.00 0.00 18.50 36.50 115.00 104.00 0.00 0.00 0.00 0.00 274.00
1919 0.00 0.00 0.00 0.00 27.50 146.50 185.50 70.00 40.50 0.00 0.00 0.00 470.00
1920 0.00 0.00 0.00 0.00 11.50 97.00 92.00 104.50 44.00 0.50 0.00 0.00 349.50
1921 0.00 0.00 0.00 1.00 46.00 209.50 216.00 g 109.00 32.50 0.00 0.00 0.00 398.00
1922 0.00 0.00 0.00 0.00 17.00 65.50 91.50 170.50 78.50 18.50 0.00 0.00 441.50
1923 0.00 0.00 c 0.00 0.00 13.50 148.00 221.59 d 68.95 b 46.00 0.00 0.00 0.00 498.04
1924 0.00 0.00 0.00 0.00 0.00 22.50 84.50 77.50 0.00 0.00 0.00 0.00 184.50
1925 0.00 0.00 0.00 0.00 33.50 92.50 86.00 f 153.50 43.50 h 0.00 0.00 0.00 279.50
1926 0.00 a 0.00 0.00 c 0.00 e 0.00 z 39.00 148.50 72.00 8.00 0.00 0.00 0.00 267.50
1927 0.00 0.00 f 0.00 0.00 0.00 71.50 64.00 19.50 91.50 0.00 0.00 0.00 246.50
1928 0.00 0.00 0.00 0.00 33.50 11.50 136.00 128.50 2.00 7.00 0.00 0.00 318.50
1929 0.00 0.00 0.00 0.00 19.00 57.50 219.14 b 130.50 58.50 0.00 0.00 0.00 b 484.64
1930 0.00 0.00 0.00 0.00 13.90 b 75.00 77.00 r 208.50 42.00 18.50 0.00 0.00 357.90
1931 0.00 0.00 0.00 0.00 c 32.00 202.76 a 261.95 a 130.00 138.50 4.50 0.00 0.00 769.71
1932 0.00 0.00 0.00 0.00 21.18 a 127.50 243.50 178.50 24.50 1.00 0.00 0.00 596.18
1933 0.00 a 0.00 0.00 0.00 15.50 303.00 299.15 a 133.00 100.00 0.00 0.00 0.00 850.65
1934 0.00 a 0.00 0.00 10.50 137.95 a 156.00 242.50 151.38 a 7.00 3.62 a 0.00 a 0.00 708.95
1935 0.00 a 0.00 0.00 0.00 0.00 a 43.00 353.00 213.50 32.07 a 0.00 0.00 0.00 641.57
1936 0.00 0.00 0.00 0.00 33.00 66.50 378.41 b 219.00 91.50 0.00 0.00 0.00 788.41
1937 0.00 a 0.00 a 0.00 0.00 26.50 88.00 252.50 296.00 78.00 0.00 a 0.00 0.00 741.00
1938 0.00 0.00 0.00 a 4.00 6.00 72.50 198.00 253.00 39.31 a 10.50 0.00 a 0.00 583.31
1939 0.00 0.00 a 0.00 0.00 47.00 90.50 227.33 a 138.00 89.00 0.00 a 0.00 m 0.00 c 591.83
1940 0.00 0.00 0.00 0.00 15.50 79.00 252.00 132.00 101.90 a 0.00 0.00 0.00 580.40
1941 0.00 0.00 0.00 2.00 48.00 128.00 247.00 181.00 37.00 0.00 0.00 d 0.00 643.00
1942 0.00 0.00 0.00 q 9.50 n 3.32 c 78.46 d 158.44 d 136.00 37.22 c 0.00 b 0.00 a 0.00 413.45
1943 0.00 a 0.00 0.00 0.00 a 4.50 160.00 254.50 159.00 28.50 6.50 0.00 d 0.00 b 613.00
1944 0.00 a 0.00 0.00 0.00 61.50 103.50 129.00 163.50 19.00 0.00 0.00 0.00 476.50
1945 0.00 0.00 0.00 0.00 0.00 33.00 131.00 140.00 41.50 0.00 0.00 0.00 345.50
1946 0.00 0.00 0.00 0.00 2.50 70.50 180.00 75.50 18.00 0.00 0.00 0.00 346.50
1947 0.00 0.00 0.00 0.00 1.00 33.50 200.00 347.50 97.50 22.00 0.00 0.00 701.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 189.50 154.50 97.50 0.00 b 0.00 a 0.00 441.50
1949 0.00 0.00 0.00 0.00 a 18.00 109.50 214.00 207.50 7.50 0.00 0.00 0.00 556.50
1950 0.00 0.00 0.00 0.00 4.50 99.00 140.00 106.95 a 5.00 0.00 0.00 0.00 a 355.45
1951 0.00 0.00 0.00 b 0.00 14.50 28.00 165.00 53.00 0.00 z 1.03 a 0.00 0.00 a 261.53
1952 0.00 0.00 0.00 14.00 20.50 127.50 193.00 96.50 68.50 0.00 a 0.00 0.00 520.00
1953 0.00 0.00 0.00 0.00 17.50 157.50 203.50 199.00 40.00 10.00 0.00 0.00 627.50
1954 0.00 a 0.00 0.00 0.00 4.00 134.00 190.50 92.00 11.00 0.00 0.00 0.00 431.50
1955 0.00 0.00 0.00 0.00 35.00 92.00 300.50 236.50 22.24 a 0.00 0.00 0.00 686.24
1956 0.00 0.00 0.00 0.00 c 15.50 138.50 91.28 d 122.00 15.50 6.00 0.00 0.00 a 388.78
1957 0.00 0.00 0.00 0.00 7.00 34.50 258.00 112.50 10.00 0.00 0.00 d 0.00 422.00
1958 0.00 t 0.00 0.00 0.00 a 20.00 21.50 94.03 a 135.50 22.50 0.00 0.00 0.00 293.53
1959 0.00 0.00 0.00 0.00 36.50 141.50 185.00 194.50 47.00 0.00 0.00 0.00 604.50
1960 0.00 0.00 0.00 0.00 0.00 24.00 164.00 170.50 85.50 0.00 0.00 0.00 444.00
1961 0.00 0.00 0.00 0.00 9.50 86.50 116.50 155.00 50.00 0.00 0.00 0.00 b 417.50
1962 0.00 0.00 0.00 0.00 39.00 63.50 63.00 75.50 2.00 5.88 b 0.00 0.00 248.88
1963 0.00 0.00 0.00 0.00 7.50 119.00 187.00 92.50 12.50 1.50 0.00 0.00 420.00
1964 0.00 0.00 0.00 0.00 39.50 103.00 237.00 110.00 24.00 0.00 0.00 0.00 513.50
1965 0.00 0.00 0.00 0.00 2.50 38.00 94.00 88.00 0.50 2.00 0.00 0.00 225.00
1966 0.00 0.00 0.00 0.00 4.00 96.00 234.00 71.50 13.50 0.00 a 0.00 0.00 419.00
1967 0.00 0.00 0.00 0.00 0.00 37.50 119.00 58.50 4.00 0.00 0.00 0.00 219.00
1968 0.00 0.00 0.00 0.00 0.00 57.50 157.50 132.00 11.00 10.00 0.00 0.00 368.00
1969 0.00 0.00 0.00 0.00 33.50 10.00 150.00 182.50 27.50 5.00 0.00 0.00 408.50
1970 0.00 0.00 0.00 0.00 15.00 125.50 231.50 153.50 64.50 5.50 0.00 0.00 595.50
1971 0.00 0.00 0.00 0.00 0.00 159.00 81.00 88.00 59.00 7.50 0.00 0.00 394.50
1972 0.00 0.00 0.00 0.00 47.50 64.50 107.50 127.50 3.00 0.00 0.00 c 0.00 b 350.00
1973 0.00 0.00 0.00 0.00 a 0.50 63.50 157.50 187.00 36.00 2.50 0.00 0.00 447.00
1974 0.00 0.00 0.00 1.50 7.50 36.00 258.50 80.50 1.00 0.00 0.00 0.00 385.00
1975 0.00 0.00 0.00 0.00 26.00 91.50 257.00 123.00 6.50 2.00 0.00 0.00 506.00
1976 0.00 0.00 0.00 4.00 0.00 99.50 222.00 213.50 57.50 1.00 0.00 0.00 597.50
1977 0.00 0.00 0.00 5.00 87.00 80.50 236.50 40.00 10.00 0.00 0.00 z 0.00 z 459.00
1978 0.00 z 0.00 z 0.00 z 0.00 z 28.13 d 42.50 95.67 b 66.50 65.17 a 0.00 0.00 0.00 297.97
1979 0.00 0.00 a 0.00 0.00 b 3.00 41.50 120.00 64.50 33.75 b 0.00 0.00 0.00 262.75
1980 0.00 0.00 0.00 11.50 49.17 b 56.67 c 179.00 109.00 10.50 0.00 w 0.00 n 0.00 415.84
1981 0.00 0.00 0.00 0.00 2.67 b 34.00 148.00 93.00 13.00 0.00 0.00 a 0.00 290.67
1982 0.00 0.00 0.00 0.00 10.50 9.50 156.00 122.50 21.00 0.00 0.00 0.00 319.50
1983 0.00 a 0.00 0.00 0.00 0.00 100.86 a 255.00 205.50 59.50 2.50 0.00 a 0.00 623.36
1984 0.00 c 0.00 0.00 0.00 0.00 94.50 177.00 199.00 9.00 0.00 0.00 a 0.00 a 479.50
1985 0.00 0.00 0.00 11.00 29.97 a 49.14 a 176.00 60.50 42.00 0.00 0.00 0.00 368.60
1986 0.00 s 0.00 0.00 0.00 29.50 109.00 209.50 69.50 24.00 0.00 0.00 0.00 441.50
1987 0.00 0.00 0.00 15.00 44.95 a 195.52 a 299.00 136.00 28.00 0.00 0.00 0.00 718.47
1988 0.00 0.00 0.00 0.00 a 56.50 223.50 300.00 197.50 19.50 0.00 0.00 0.00 797.00
1989 0.00 0.00 0.00 0.00 21.00 108.50 285.50 132.00 17.50 4.50 0.00 0.00 569.00
1990 0.00 0.00 0.00 25.00 1.50 126.00 185.00 150.50 53.00 0.00 0.00 0.00 541.00
1991 0.00 0.00 0.00 3.50 61.50 150.00 169.50 170.00 24.00 0.00 0.00 0.00 578.50
1992 0.00 0.00 0.00 0.00 49.00 53.00 53.50 71.00 4.00 1.50 0.00 0.00 232.00
1993 0.00 0.00 0.00 0.00 7.50 66.50 103.50 144.00 5.50 3.50 0.00 0.00 a 330.50
1994 0.00 0.00 0.00 0.00 18.00 91.00 100.50 69.50 38.50 0.00 0.00 0.00 317.50
1995 0.00 0.00 0.00 0.00 a 0.00 156.00 157.50 132.50 23.50 0.00 0.00 0.00 469.50
1996 0.00 0.00 0.00 0.00 6.00 75.52 a 71.50 111.00 46.00 0.50 0.00 0.00 310.52
1997 0.00 0.00 0.00 0.00 1.00 87.00 153.00 63.00 15.00 2.50 0.00 0.00 321.50
1998 0.00 a 0.00 0.00 0.00 39.50 64.50 160.00 144.00 68.50 0.00 0.00 0.00 476.50
1999 0.00 0.00 0.00 0.00 14.00 96.50 236.50 96.00 40.00 0.00 0.00 0.00 483.00
2000 0.00 0.00 0.00 0.00 31.00 39.00 0.00 z 0.00 z 6.50 n 0.52 a 0.00 0.00 a 70.52
2001 0.00 0.00 0.00 a 6.00 15.00 96.00 177.50 170.50 21.50 0.00 0.00 0.00 486.50
2002 0.00 0.00 0.00 6.50 16.00 108.50 215.50 71.50 56.00 1.50 0.00 0.00 475.50
2003 0.00 0.00 0.00 0.00 7.00 56.00 130.50 167.00 47.00 4.00 0.00 0.00 411.50
2004 0.00 0.00 0.00 0.00 0.00 31.50 109.00 28.00 57.50 0.00 0.00 0.00 226.00
2005 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
2006 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
2007 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 z 0.00 z 0.00
2008 0.00 z 0.00 0.00 0.00 0.00 36.50 140.50 101.00 26.00 1.50 0.00 0.00 305.50
2009 0.00 0.00 0.00 1.50 7.00 83.00 47.50 61.00 35.00 0.00 0.00 0.00 235.00
2010 0.00 0.00 0.00 0.00 37.50 51.00 173.50 194.00 1.50 0.00 0.00 0.00 457.50
2011 0.00 a 0.00 0.00 0.00 5.00 46.00 216.00 f 112.50 38.79 a 11.88 a 0.00 0.00 214.18
2012 0.00 0.00 b 4.02 d 0.00 b 22.00 97.00 298.50 93.00 33.00 0.00 a 0.00 0.00 547.52
2013 0.00 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 0.04 1.25 18.98 85.81 175.93 125.19 33.07 1.80 0.00 0.00 458.08
S.D. 0.00 0.00 0.40 3.74 21.17 51.31 71.94 58.89 28.69 4.00 0.00 0.00 160.41
SKEW 0.00 0.00 10.00 3.94 2.27 1.19 0.35 0.80 1.13 3.08 0.00 0.00 0.32
MAX 0.00 0.00 4.02 25.00 137.95 303.00 378.41 347.50 138.50 22.00 0.00 0.00 850.65
MIN 0.00 0.00 0.00 0.00 0.00 9.50 40.82 19.50 0.00 0.00 0.00 0.00 106.62
NO YRS 101 104 103 104 105 103 101 104 105 106 104 105 80