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
1893 0.00 0.00 0.00 a 0.00 0.00 124.00 180.50 90.00 62.50 1.00 0.00 0.00 458.00
1894 0.00 0.00 0.00 0.50 27.00 188.00 276.50 209.00 72.50 0.00 0.00 0.00 773.50
1895 0.00 0.00 0.00 7.00 66.50 125.50 187.50 185.50 157.00 0.00 0.00 0.00 729.00
1896 0.00 0.00 0.00 6.50 78.00 104.50 184.00 176.00 15.50 0.00 0.00 0.00 564.50
1897 0.00 0.00 0.00 0.00 8.50 119.00 234.50 59.50 138.50 41.50 0.00 0.00 601.50
1898 0.00 0.00 0.00 0.00 5.50 131.00 224.00 116.00 67.00 2.00 0.00 0.00 545.50
1899 0.00 0.00 0.00 9.00 11.50 85.50 185.00 187.50 56.00 19.00 0.00 0.00 553.50
1900 0.00 0.00 0.00 2.00 45.50 90.00 147.00 297.00 67.00 18.00 0.00 0.00 666.50
1901 0.00 0.00 0.00 14.00 27.00 173.00 345.50 167.50 45.50 3.00 0.00 0.00 775.50
1902 0.00 0.00 0.00 0.00 37.72 a 32.50 154.00 64.00 3.00 0.00 a 0.00 0.00 291.22
1903 0.00 0.00 0.00 0.00 9.00 35.50 129.50 58.00 15.00 a 0.00 0.00 0.00 247.00
1904 0.00 0.00 0.00 0.00 8.50 39.50 109.50 51.50 29.00 0.00 0.00 0.00 238.00
1905 0.00 0.00 0.00 0.00 9.00 79.50 137.00 155.00 43.50 8.50 0.00 0.00 432.50
1906 0.00 0.00 0.00 0.50 40.00 104.50 163.50 209.50 100.00 0.00 0.00 0.00 618.00
1907 0.00 a 0.00 0.00 0.00 5.50 72.50 169.00 111.00 41.50 0.00 0.00 0.00 399.50
1908 0.00 0.00 0.00 0.50 29.00 61.50 193.00 128.50 172.50 4.00 0.00 0.00 589.00
1909 0.00 0.00 0.00 0.00 14.50 105.50 191.00 270.50 31.50 5.50 0.00 0.00 618.50
1910 0.00 a 0.00 10.00 14.00 0.00 251.00 326.50 204.50 17.00 17.00 0.00 0.00 840.00
1911 0.00 0.00 1.50 0.00 112.50 231.50 261.00 119.50 61.00 0.00 0.00 0.00 787.00
1912 0.00 0.00 0.00 0.00 25.50 105.50 217.00 118.00 108.50 2.00 0.00 0.00 576.50
1913 0.00 0.00 0.00 11.00 45.50 204.00 209.50 191.00 84.00 1.50 0.00 0.00 746.50
1914 0.00 b 0.00 0.00 e 0.00 43.50 103.00 198.00 146.73 a 41.50 0.50 0.00 0.00 533.23
1915 0.00 0.00 0.00 20.00 5.50 31.50 86.00 54.50 31.50 0.00 0.00 0.00 229.00
1916 0.00 0.00 0.00 0.00 10.50 22.24 a 355.47 a 231.50 47.88 d 12.50 0.00 a 0.00 680.09
1917 0.00 0.00 0.00 0.00 12.00 36.00 206.00 71.00 14.00 0.00 a 0.00 0.00 339.00
1918 0.00 a 0.00 0.00 0.00 21.00 43.50 149.00 174.50 4.50 5.00 0.00 a 0.00 397.50
1919 0.00 0.00 a 0.00 0.00 a 26.35 a 187.50 282.50 26.50 u 84.50 7.50 0.00 0.00 588.35
1920 0.00 0.00 0.00 0.00 0.00 z 0.00 z 195.00 f 230.00 0.00 z 0.00 z 0.00 z 0.00 z 230.00
1921 0.00 z 0.00 o 0.00 d 6.00 73.00 218.50 0.00 z 153.40 b 49.00 0.00 0.00 0.00 d 499.90
1922 0.00 0.00 b 0.00 a 0.00 24.50 98.50 97.50 112.00 j 102.50 24.50 0.00 0.00 347.50
1923 0.00 0.00 0.00 2.00 17.00 161.79 b 123.50 q 117.44 e 40.71 b 0.00 0.00 0.00 b 338.94
1924 0.00 0.00 0.00 0.00 0.00 35.40 e 97.00 101.00 7.50 d 1.00 0.00 e 0.00 241.90
1925 0.00 0.00 0.00 9.31 a 31.50 k 80.00 h 143.63 a 104.22 b 95.50 0.00 0.00 e 0.00 352.67
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 0.00 0.00 30.50 43.00 287.00 191.68 a 31.00 3.00 0.00 0.00 586.18
1929 0.00 a 0.00 0.00 10.34 a 40.50 83.50 251.21 b 151.00 52.50 0.52 a 0.00 b 0.00 589.57
1930 0.00 0.00 a 0.00 4.14 a 44.00 116.11 c 257.50 h 264.00 68.50 16.53 a 0.00 0.00 a 513.28
1931 0.00 0.00 a 0.00 a 0.00 a 20.15 a 281.11 c 382.50 207.59 c 176.25 b 3.62 a 0.00 0.00 1071.22
1932 0.00 a 0.00 a 0.00 0.00 38.75 a 160.86 a 304.00 196.50 15.00 1.00 0.00 0.00 a 716.11
1933 0.00 0.00 c 0.00 1.50 30.47 b 343.00 285.00 142.60 a 124.14 a 0.00 0.00 0.00 a 926.70
1934 0.00 b 0.00 c 0.00 a 2.50 177.22 a 301.00 348.00 199.50 37.50 2.50 0.00 a 0.00 1068.22
1935 0.00 a 0.00 0.00 a 0.00 3.10 a 86.50 377.50 240.50 54.50 2.14 b 0.00 0.00 a 764.24
1936 0.00 0.00 0.00 0.00 a 62.00 a 101.00 437.50 287.00 89.50 0.00 a 0.00 0.00 977.00
1937 0.00 0.00 0.00 b 0.00 39.00 102.50 319.50 337.00 133.00 0.00 0.00 0.00 931.00
1938 0.00 0.00 0.00 5.00 10.33 a 103.93 b 231.00 249.50 33.00 e 20.00 0.00 0.00 652.76
1939 0.00 0.00 0.00 20.17 a 67.00 179.44 c 251.50 0.00 z 133.50 2.00 0.00 0.00 z 653.62
1940 0.00 a 0.00 0.00 0.00 14.97 b 157.50 319.82 a 178.52 b 99.50 0.00 0.00 0.00 a 770.30
1941 0.00 d 0.00 0.00 12.41 a 65.50 175.50 272.50 251.50 79.00 0.00 0.00 0.00 a 856.41
1942 0.00 0.00 0.00 b 4.00 32.50 105.52 a 205.00 165.50 71.50 2.07 a 0.00 0.00 586.08
1943 0.00 g 0.00 b 2.00 0.00 a 18.50 221.00 241.50 208.50 27.50 1.50 0.00 0.00 720.50
1944 0.00 0.00 0.00 0.00 73.50 183.50 165.50 207.00 42.50 0.00 0.00 0.00 672.00
1945 0.00 0.00 0.00 1.50 4.00 59.00 145.00 157.00 62.50 0.00 0.00 0.00 429.00
1946 0.00 0.00 0.00 3.50 7.00 128.50 212.50 122.00 40.00 2.50 0.00 0.00 516.00
1947 0.00 0.00 0.00 0.00 3.00 83.50 199.00 403.00 142.00 49.00 0.00 0.00 879.50
1948 0.00 0.00 0.00 14.50 11.50 111.00 302.50 270.50 158.00 0.00 0.00 0.00 868.00
1949 0.00 a 0.00 0.00 0.00 m 0.00 z 0.00 z 0.00 z 265.00 6.00 10.33 a 0.00 0.00 281.33
1950 0.00 b 0.00 0.00 0.00 17.64 b 111.00 125.50 87.50 13.50 8.50 2.59 a 0.00 a 366.22
1951 0.00 0.00 b 0.00 b 0.00 40.82 a 44.50 166.37 a 100.50 13.39 b 5.17 a 0.00 0.00 370.74
1952 0.00 0.00 a 0.00 20.50 32.50 171.50 261.50 98.68 a 65.50 0.00 0.00 b 0.00 a 650.18
1953 0.00 0.00 0.00 c 0.00 a 19.78 b 124.29 b 184.40 b 181.50 62.07 a 18.00 0.00 0.00 590.03
1954 0.00 c 0.00 0.00 3.10 a 1.03 a 196.00 217.53 b 115.00 43.00 0.00 0.00 a 0.00 575.67
1955 0.00 0.00 0.00 a 0.00 b 33.58 a 77.00 367.00 336.00 67.00 0.00 b 0.00 0.00 880.58
1956 0.00 0.00 0.00 0.00 b 24.50 201.50 125.03 a 166.50 11.25 b 4.50 0.00 0.00 b 533.28
1957 0.00 0.00 0.00 1.00 12.50 96.50 266.50 136.40 a 33.50 0.00 0.00 0.00 a 546.40
1958 0.00 b 0.00 c 0.00 g 0.00 e 12.00 g 21.00 f 111.50 f 71.00 w 9.50 m 9.50 f 0.00 e 0.00 d 0.00
1959 0.00 a 0.00 0.00 a 0.00 58.00 131.00 168.50 241.50 74.50 0.00 0.00 0.00 673.50
1960 0.00 0.00 0.00 20.00 2.50 49.00 142.50 169.00 107.00 5.00 0.00 0.00 495.00
1961 0.00 0.00 0.00 0.00 15.00 116.50 150.50 147.50 78.50 0.00 0.00 0.00 508.00
1962 0.00 0.00 0.00 13.00 85.50 93.00 90.00 125.00 20.00 16.50 0.00 0.00 443.00
1963 0.00 0.00 0.00 1.00 14.00 178.00 208.00 115.50 37.00 30.50 0.00 0.00 584.00
1964 0.00 0.00 0.00 8.00 66.00 149.00 279.00 139.00 53.50 0.00 0.00 0.00 694.50
1965 0.00 0.00 0.00 0.00 56.00 66.50 0.00 z 143.00 13.00 7.00 0.00 0.00 285.50
1966 0.00 0.00 0.00 0.00 16.50 134.00 237.50 101.00 32.50 3.50 0.00 0.00 525.00
1967 0.00 0.00 0.50 0.00 25.00 96.00 142.50 87.00 11.50 10.00 0.00 0.00 372.50
1968 0.00 0.00 0.00 1.50 5.50 109.50 166.50 192.00 21.00 20.00 0.00 0.00 516.00
1969 0.00 0.00 0.00 0.00 39.50 23.00 172.50 157.00 49.50 14.00 0.00 0.00 455.50
1970 0.00 0.00 0.00 20.00 42.00 143.50 224.00 118.50 52.50 8.50 0.00 0.00 609.00
1971 0.00 0.00 0.00 0.00 3.50 197.00 91.50 103.50 101.00 23.00 0.00 0.00 a 519.50
1972 0.00 0.00 0.00 0.00 62.50 82.00 136.00 175.50 25.50 1.00 0.00 0.00 482.50
1973 0.00 0.00 0.00 a 0.00 0.00 a 116.00 213.50 195.00 38.50 12.00 0.00 0.00 575.00
1974 0.00 0.00 0.00 10.00 17.00 38.50 259.00 99.00 12.00 0.00 0.00 0.00 a 435.50
1975 0.00 0.00 0.00 0.00 56.50 136.00 245.50 174.00 16.00 18.00 0.00 a 0.00 646.00
1976 0.00 b 0.00 0.00 2.50 5.50 134.50 222.50 150.00 44.00 5.50 0.00 0.00 564.50
1977 0.00 0.00 0.00 26.00 108.50 113.50 258.00 79.50 13.50 0.00 0.00 0.00 599.00
1978 0.00 0.00 0.00 0.00 49.00 71.00 163.50 134.73 e 106.50 0.00 0.00 0.00 524.73
1979 0.00 0.00 0.00 0.00 z 23.25 a 56.38 a 137.50 100.00 h 45.00 j 0.50 k 0.00 l 0.00 n 217.13
1980 0.00 m 0.00 i 0.00 b 10.86 a 44.00 92.22 c 129.50 j 137.50 29.50 0.00 0.00 0.00 k 314.08
1981 0.00 j 0.00 0.00 a 0.00 f 6.50 91.03 a 159.28 b 110.00 11.50 0.00 0.00 0.00 378.31
1982 0.00 0.00 0.00 0.00 12.00 31.50 186.00 108.00 27.50 1.50 0.00 0.00 366.50
1983 0.00 0.00 0.00 0.00 0.00 103.00 244.50 197.50 58.50 6.00 0.00 a 0.00 609.50
1984 0.00 0.00 0.00 0.00 0.00 77.50 127.50 177.50 15.00 0.00 0.00 0.00 397.50
1985 0.00 0.00 0.00 29.00 23.00 64.50 150.50 56.50 94.50 0.00 0.00 0.00 418.00
1986 0.00 0.00 0.00 a 4.50 12.50 89.50 174.50 27.50 14.00 0.00 0.00 0.00 322.50
1987 0.00 0.00 0.00 6.50 44.50 144.00 268.00 108.00 25.00 0.00 0.00 0.00 596.00
1988 0.00 0.00 b 0.00 0.00 27.00 154.50 0.00 z 268.50 0.00 z 0.00 0.00 0.00 450.00
1989 0.00 0.00 0.00 a 0.00 13.00 65.50 208.00 116.50 15.50 2.00 0.00 0.00 420.50
1990 0.00 0.00 0.00 23.50 4.00 85.00 0.00 z 109.00 68.50 4.00 0.00 0.00 294.00
1991 0.00 0.00 0.00 13.00 75.50 153.50 152.50 113.00 36.50 0.00 0.00 0.00 544.00
1992 0.00 0.00 0.00 0.00 26.50 23.00 36.00 44.50 10.50 0.00 0.00 0.00 140.50
1993 0.00 a 0.00 0.00 0.00 14.00 37.00 84.50 116.50 1.50 4.00 0.00 0.00 257.50
1994 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 0.00 0.00 0.00
1995 0.00 0.00 0.00 0.00 0.50 136.50 206.00 261.00 29.50 1.50 0.00 0.00 635.00
1996 0.00 0.00 0.00 0.00 20.00 77.50 62.50 74.00 31.00 0.00 0.00 0.00 265.00
1997 0.00 0.00 0.00 0.00 0.00 90.00 148.50 47.00 11.50 13.50 0.00 0.00 310.50
1998 0.00 0.00 0.00 0.00 33.00 92.50 124.00 110.00 47.00 0.00 0.00 0.00 406.50
1999 0.00 0.00 0.00 0.00 2.00 110.00 255.00 68.50 30.50 0.00 0.00 0.00 a 466.00
2000 0.00 0.00 0.00 0.00 23.00 51.50 128.00 129.00 39.50 3.00 1.50 0.00 375.50
2001 0.00 0.00 0.00 2.50 25.00 84.00 188.07 a 163.00 11.50 0.00 0.00 0.00 474.07
2002 0.00 0.00 0.00 14.00 12.50 130.00 227.00 97.50 55.00 3.50 0.00 0.00 539.50
2003 0.00 0.00 0.00 6.50 0.50 60.50 148.00 188.50 56.00 0.00 0.00 0.00 460.00
2004 0.00 0.00 0.00 0.50 16.50 51.00 102.00 50.00 53.50 h 0.00 z 0.00 z 0.00 z 220.00
2005 0.00 z 0.00 z 0.00 z 0.00 o 0.52 a 157.00 206.00 126.50 79.50 11.00 0.00 0.00 580.52
2006 0.00 0.00 0.00 0.00 44.50 67.50 239.00 133.00 9.50 3.50 0.00 0.00 497.00
2007 0.00 0.00 b 1.00 3.50 30.50 96.00 160.50 147.50 57.00 24.50 0.00 0.00 520.50
2008 0.00 0.00 0.00 0.00 1.50 47.50 144.50 83.00 29.00 3.50 0.00 0.00 b 309.00
2009 0.00 0.00 0.00 0.00 8.00 91.00 32.50 73.00 23.50 0.00 0.00 0.00 228.00
2010 0.00 0.00 0.00 0.00 40.00 63.00 193.00 199.50 10.00 6.50 0.00 0.00 512.00
2011 0.00 a 0.00 0.00 0.00 24.50 78.50 252.50 126.50 30.50 4.00 0.00 0.00 516.50
2012 0.00 0.00 6.00 0.00 28.00 130.00 337.50 123.50 38.50 0.00 h 0.00 z 0.00 z 663.50
Period of Record Statistics
MEAN 0.00 0.00 0.18 3.74 28.14 111.60 203.24 153.66 51.77 5.25 0.04 0.00 552.81
S.D. 0.00 0.00 1.10 6.58 27.70 60.52 78.05 69.80 39.75 8.66 0.28 0.00 192.18
SKEW 0.00 0.00 7.51 1.95 2.07 1.11 0.45 0.81 1.18 2.51 8.08 0.00 0.43
MAX 0.00 0.00 10.00 29.00 177.22 343.00 437.50 403.00 176.25 49.00 2.59 0.00 1071.22
MIN 0.00 0.00 0.00 0.00 0.00 22.24 32.50 27.50 1.50 0.00 0.00 0.00 140.50
NO YRS 112 115 116 113 113 113 107 112 112 113 114 112 96