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 p 0.00 0.00 g 0.00 a 1.50 h 95.69 a 179.50 87.50 12.50 0.00 0.00 0.00 375.19
1894 0.00 0.00 0.00 d 1.03 a 0.00 a 159.00 168.50 77.50 a 44.50 0.00 a 0.00 0.00 a 450.53
1895 0.00 c 0.00 f 0.00 0.00 42.37 a 83.00 66.00 74.00 99.50 0.00 a 0.00 a 0.00 364.87
1896 0.00 0.00 0.00 0.50 42.50 76.50 151.00 150.50 7.00 0.00 c 0.00 0.00 428.00
1897 0.00 a 0.00 b 0.00 0.00 b 0.50 47.50 219.07 a 55.50 91.67 c 5.68 a 0.00 n 0.00 419.92
1898 0.00 0.00 0.00 c 0.00 4.77 e 67.24 a 175.50 89.90 a 70.34 a 12.63 d 0.00 a 0.00 420.39
1899 0.00 0.00 e 0.00 g 3.75 b 6.50 77.50 155.00 172.00 40.00 5.50 0.00 d 0.00 e 460.25
1900 0.00 0.00 0.00 0.00 17.50 57.00 139.50 c 289.00 69.00 14.50 0.00 0.00 b 586.50
1901 0.00 0.00 a 0.00 2.00 0.00 109.00 312.00 195.00 30.58 d 0.52 a 0.00 0.00 b 649.09
1902 0.00 b 0.00 a 0.00 d 0.00 d 13.71 e 28.39 b 178.80 c 58.42 e 5.50 0.00 d 0.00 i 0.00 l 284.83
1903 0.00 m 0.00 z 0.00 b 0.00 c 24.59 b 28.50 166.00 45.47 a 27.00 0.00 0.00 0.00 291.55
1904 0.00 a 0.00 b 0.00 0.00 10.00 33.50 93.53 b 55.00 22.50 0.00 0.00 0.00 214.53
1905 0.00 0.00 0.00 0.00 0.00 64.50 100.50 118.50 33.00 7.00 0.00 0.00 323.50
1906 0.00 b 0.00 0.00 0.00 22.00 66.00 126.50 184.00 91.50 0.00 0.00 0.00 a 490.00
1907 0.00 e 0.00 z 0.00 0.00 0.00 76.00 134.85 a 77.50 45.00 a 0.00 a 0.00 0.00 333.35
1908 0.00 0.00 0.00 0.50 9.00 85.00 152.00 131.50 99.50 1.00 0.00 0.00 l 478.50
1909 0.00 b 0.00 0.00 0.00 a 2.07 a 105.00 159.50 191.00 30.50 0.00 0.00 0.00 488.07
1910 0.00 a 0.00 0.00 0.00 0.00 170.00 200.50 118.46 c 8.50 2.00 0.00 b 0.00 499.46
1911 0.00 0.00 b 0.00 0.00 49.50 146.50 173.00 89.79 b 23.28 a 0.00 0.00 0.00 482.07
1912 0.00 a 0.00 0.00 0.00 a 12.50 49.50 145.18 a 42.22 b 69.00 2.67 b 0.00 0.00 321.08
1913 0.00 0.00 0.00 2.00 9.50 132.50 131.50 110.05 a 56.38 a 0.00 0.00 0.00 441.93
1914 0.00 0.00 0.00 0.00 a 45.43 b 80.69 a 220.74 b 119.35 a 36.96 b 4.65 a 0.00 0.00 507.83
1915 0.00 a 0.00 b 0.00 20.00 5.00 21.50 84.50 49.48 e 31.00 0.00 0.00 b 0.00 211.48
1916 0.00 a 0.00 0.00 0.00 6.00 27.00 325.50 182.79 b 20.00 2.50 0.00 a 0.00 a 563.79
1917 0.00 0.00 0.00 0.00 0.50 21.50 208.14 c 69.00 37.50 0.00 0.00 x 0.00 a 336.64
1918 0.00 0.00 a 0.00 f 0.00 b 29.28 d 45.00 132.27 a 129.00 2.00 0.00 0.00 0.00 z 337.54
1919 0.00 0.00 0.00 0.00 0.00 i 282.60 e 330.50 0.00 z 125.00 4.00 0.00 b 0.00 742.10
1920 0.00 z 0.00 z 0.00 z 0.00 d 0.50 123.50 66.50 106.36 b 47.50 12.50 0.00 h 0.00 356.86
1921 0.00 a 0.00 0.00 a 1.50 28.50 186.00 367.00 104.50 75.50 0.00 b 0.00 0.00 763.00
1922 0.00 0.00 0.00 0.00 d 0.00 z 61.80 e 114.18 a 109.03 b 20.50 f 19.00 0.00 0.00 304.02
1923 0.00 0.00 0.00 0.00 b 0.00 166.50 h 180.83 a 68.50 36.50 0.00 0.00 0.00 285.83
1924 0.00 0.00 0.00 0.00 0.00 a 26.50 i 82.50 82.50 4.29 b 0.00 0.00 c 0.00 169.29
1925 0.00 0.00 a 0.00 0.00 15.00 115.34 a 129.00 134.00 68.57 b 0.00 c 0.00 0.00 461.92
1926 0.00 0.00 0.00 0.00 5.50 25.50 160.00 94.00 12.00 0.00 0.00 0.00 297.00
1927 0.00 0.00 0.00 0.00 0.00 a 50.50 99.50 27.50 80.00 0.00 0.00 0.00 257.50
1928 0.00 0.00 0.00 0.00 0.50 16.00 147.00 112.00 2.00 4.00 0.00 0.00 281.50
1929 0.00 0.00 0.00 0.00 22.00 57.50 162.50 73.50 52.50 0.00 0.00 0.00 368.00
1930 0.00 0.00 a 0.00 0.00 29.50 106.61 b 185.00 166.76 b 46.55 a 5.00 0.00 0.00 539.42
1931 0.00 a 0.00 0.00 0.00 16.50 169.00 273.50 121.50 140.00 7.00 0.00 0.00 727.50
1932 0.00 a 0.00 0.00 0.00 9.00 110.50 221.00 192.41 b 18.50 1.00 0.00 0.00 552.41
1933 0.00 0.00 0.00 0.00 26.00 286.80 e 235.50 104.22 b 86.00 0.00 0.00 0.00 738.52
1934 0.00 0.00 0.00 1.50 46.50 138.50 160.68 a 97.50 8.50 1.03 a 0.00 h 0.00 454.22
1935 0.00 0.00 0.00 0.00 1.00 31.50 288.50 172.00 17.00 0.00 0.00 a 0.00 510.00
1936 0.00 0.00 0.00 0.00 42.50 24.83 a 343.00 224.50 70.00 0.00 0.00 0.00 704.83
1937 0.00 a 0.00 0.00 0.00 18.00 76.00 228.00 252.50 84.00 0.00 0.00 0.00 658.50
1938 0.00 0.00 0.00 3.00 1.50 57.00 141.50 194.00 8.00 4.00 0.00 0.00 409.00
1939 0.00 0.00 0.00 0.00 32.00 77.00 165.50 99.00 77.00 0.00 0.00 0.00 450.50
1940 0.00 a 0.00 b 0.00 0.00 0.00 46.50 166.00 97.00 33.00 1.00 0.00 0.00 343.50
1941 0.00 0.00 0.00 1.50 26.00 113.00 192.50 119.50 47.00 0.00 0.00 0.00 499.50
1942 0.00 a 0.00 0.00 2.00 0.00 65.00 149.32 a 136.00 46.50 0.00 0.00 0.00 398.82
1943 0.00 0.00 0.00 0.00 2.50 g 175.50 187.50 139.00 19.00 0.00 0.00 0.00 521.00
1944 0.00 0.00 0.00 0.00 30.50 126.50 125.00 165.00 20.50 0.00 0.00 0.00 467.50
1945 0.00 0.00 0.00 1.00 0.00 68.50 114.00 160.50 71.00 0.00 0.00 0.00 415.00
1946 0.00 0.00 0.00 1.50 0.00 106.50 171.00 124.52 a 32.50 2.50 0.00 b 0.00 a 438.52
1947 0.00 0.00 0.00 0.00 a 0.00 z 62.50 j 191.00 364.50 131.50 0.00 z 0.00 0.00 a 687.00
1948 0.00 0.00 0.00 0.00 5.50 68.00 206.15 a 192.50 86.00 0.00 d 0.00 k 0.00 z 558.15
1949 0.00 z 0.00 p 0.00 0.00 b 34.00 176.38 a 285.20 a 181.50 11.00 7.50 0.00 0.00 a 695.58
1950 0.00 0.00 a 0.00 b 0.00 a 3.00 102.50 102.76 d 44.00 8.89 c 8.50 0.00 0.00 269.65
1951 0.00 0.00 0.00 2.00 36.50 32.00 170.50 57.50 18.50 1.00 0.00 a 0.00 d 318.00
1952 0.00 a 0.00 0.00 2.50 2.00 119.00 238.00 127.00 69.00 0.00 0.00 b 0.00 557.50
1953 0.00 0.00 0.00 0.00 11.50 99.50 192.50 180.50 54.50 9.30 a 0.00 b 0.00 547.80
1954 0.00 0.00 0.00 b 0.00 4.00 150.00 174.00 103.50 19.50 0.00 0.00 0.00 451.00
1955 0.00 a 0.00 0.00 0.00 24.00 79.00 309.50 280.50 69.00 4.50 0.00 0.00 g 766.50
1956 0.00 h 0.00 0.00 0.00 a 14.00 141.00 94.00 140.50 19.50 5.68 a 0.00 b 0.00 d 414.68
1957 0.00 0.00 0.00 d 7.00 11.50 103.50 190.50 112.50 24.50 0.00 0.00 0.00 449.50
1958 0.00 0.00 0.00 a 3.00 1.50 32.50 132.00 161.20 a 25.71 b 0.00 0.00 0.00 355.91
1959 0.00 0.00 0.00 0.00 b 39.27 a 122.00 169.00 249.55 a 72.50 0.00 0.00 0.00 652.32
1960 0.00 0.00 0.00 0.00 0.00 31.50 119.02 c 172.00 89.00 0.00 0.00 0.00 411.52
1961 0.00 0.00 0.00 0.00 8.50 95.00 147.50 161.00 110.00 0.00 0.00 0.00 522.00
1962 0.00 0.00 0.00 7.50 70.27 a 69.50 89.50 128.00 28.50 1.50 0.00 0.00 394.77
1963 0.00 0.00 0.00 0.00 10.00 139.50 97.50 s 113.00 35.50 17.00 0.00 0.00 315.00
1964 0.00 0.00 z 0.00 1.00 45.00 137.50 218.07 b 97.50 44.50 0.00 0.00 0.00 543.57
1965 0.00 0.00 0.00 0.00 14.00 74.00 116.00 118.50 16.00 4.50 0.00 0.00 343.00
1966 0.00 0.00 0.00 0.00 12.00 134.50 227.33 a 111.00 32.00 0.50 0.00 0.00 517.33
1967 0.00 0.00 0.00 0.00 j 3.50 66.50 138.00 68.50 28.50 2.00 0.00 0.00 307.00
1968 0.00 0.00 0.00 0.00 0.00 80.50 164.50 144.50 22.50 23.00 0.00 z 0.00 z 435.00
1969 0.00 z 0.00 z 0.00 d 0.00 12.00 10.00 112.00 163.00 27.50 0.00 0.00 a 0.00 a 324.50
1970 0.00 0.00 0.00 2.00 10.50 83.00 239.50 116.00 32.00 0.50 0.00 0.00 483.50
1971 0.00 0.00 0.00 0.00 0.00 164.50 94.00 55.50 47.50 15.50 0.00 0.00 377.00
1972 0.00 0.00 0.00 0.00 18.50 39.31 a 131.00 95.50 5.00 0.00 0.00 0.00 289.31
1973 0.00 j 0.00 0.00 0.00 j 0.00 55.00 157.50 152.00 58.50 6.50 0.00 0.00 429.50
1974 0.00 0.00 0.00 2.00 5.50 29.50 187.50 79.00 2.00 0.00 0.00 0.00 305.50
1975 0.00 0.00 0.00 0.00 49.50 77.50 206.50 109.00 0.00 0.00 0.00 0.00 442.50
1976 0.00 0.00 0.00 5.50 0.00 102.93 a 163.50 105.50 32.50 0.00 0.00 0.00 409.93
1977 0.00 0.00 0.00 0.00 67.50 69.50 212.00 48.00 5.50 0.00 0.00 0.00 402.50
1978 0.00 0.00 0.00 0.00 47.00 61.03 a 97.50 93.50 50.17 a 0.00 0.00 0.00 349.21
1979 0.00 0.00 0.00 0.00 1.00 33.00 147.50 53.00 24.31 a 2.00 0.00 0.00 260.81
1980 0.00 a 0.00 0.00 0.00 b 23.50 49.50 162.50 108.00 3.00 0.00 0.00 0.00 346.50
1981 0.00 0.00 0.00 0.00 2.00 36.50 127.00 83.50 13.50 0.00 0.00 0.00 262.50
1982 0.00 0.00 0.00 0.00 13.50 8.00 140.50 44.50 21.00 2.50 0.00 0.00 230.00
1983 0.00 0.00 0.00 0.00 0.00 82.00 274.00 189.00 60.00 5.00 0.00 0.00 610.00
1984 0.00 0.00 0.00 0.00 2.50 59.50 129.00 133.00 8.00 0.00 0.00 0.00 332.00
1985 0.00 0.00 0.00 10.00 12.00 20.50 112.00 64.00 47.50 0.00 0.00 0.00 266.00
1986 0.00 0.00 0.00 5.00 27.00 41.50 167.50 32.50 11.00 0.00 0.00 0.00 284.50
1987 0.00 0.00 0.00 0.00 38.50 133.50 222.00 97.00 13.00 0.00 0.00 0.00 504.00
1988 0.00 0.00 0.00 0.00 z 23.50 158.50 198.00 199.50 22.50 1.00 0.00 z 0.00 603.00
1989 0.00 0.00 0.00 0.00 0.00 z 37.24 a 129.00 0.00 z 15.00 0.00 0.00 0.00 181.24
1990 0.00 0.00 z 0.00 23.50 0.00 z 36.50 0.00 z 58.50 26.00 0.00 0.00 0.00 a 144.50
1991 0.00 0.00 0.00 3.00 61.50 102.50 107.50 131.50 32.00 0.00 0.00 0.00 438.00
1992 0.00 0.00 0.00 0.00 15.00 31.50 17.00 40.50 6.00 0.00 0.00 0.00 110.00
1993 0.00 a 0.00 0.00 0.00 3.50 22.00 101.50 112.00 3.10 a 0.00 0.00 0.00 242.10
1994 0.00 0.00 0.00 0.00 26.50 103.50 91.50 43.00 34.50 0.00 0.00 0.00 299.00
1995 0.00 0.00 0.00 0.00 0.00 155.50 151.00 184.50 14.00 6.00 0.00 a 0.00 511.00
1996 0.00 0.00 0.00 0.00 14.00 62.50 47.00 113.00 46.00 0.00 0.00 0.00 282.50
1997 0.00 a 0.00 0.00 0.00 0.00 81.00 116.50 44.50 21.00 5.00 0.00 0.00 268.00
1998 0.00 0.00 0.00 0.00 50.00 107.00 119.50 120.00 51.50 0.00 0.00 0.00 448.00
1999 0.00 0.00 0.00 0.00 20.50 122.00 213.00 61.00 26.00 0.00 0.00 0.00 442.50
2000 0.00 0.00 0.00 0.00 28.00 47.00 93.00 68.00 24.50 1.50 0.00 0.00 262.00
2001 0.00 0.00 0.00 0.00 a 8.50 92.50 166.50 167.00 12.50 0.00 0.00 0.00 447.00
2002 0.00 0.00 0.00 14.00 5.50 119.50 256.00 105.00 58.00 9.00 0.00 0.00 567.00
2003 0.00 0.00 0.00 2.50 0.00 44.50 136.00 152.50 33.50 0.00 0.00 0.00 369.00
2004 0.00 0.00 0.00 0.00 4.50 27.00 98.50 54.00 55.00 0.00 0.00 0.00 239.00
2005 0.00 0.00 0.00 0.00 0.50 146.00 178.50 140.00 53.50 24.50 0.00 0.00 543.00
2006 0.00 0.00 0.00 0.00 37.50 62.50 235.50 104.00 14.50 0.00 0.00 0.00 454.00
2007 0.00 0.00 0.00 7.00 37.50 121.00 147.50 154.50 71.00 32.50 0.00 0.00 571.00
2008 0.00 z 0.00 0.00 0.00 0.00 61.50 134.50 80.50 32.50 1.50 0.00 0.00 310.50
2009 0.00 0.00 0.00 0.00 9.50 87.00 35.00 78.00 14.50 0.00 0.00 0.00 224.00
2010 0.00 0.00 0.00 0.00 54.50 71.50 193.50 193.00 19.00 0.00 0.00 0.00 531.50
2011 0.00 0.00 0.00 0.00 3.00 51.50 242.50 109.50 29.50 2.00 0.00 0.00 438.00
2012 0.00 0.00 a 7.00 0.00 26.50 112.80 e 261.00 90.13 d 30.50 0.00 h 0.00 z 0.00 z 527.93
Period of Record Statistics
MEAN 0.00 0.00 0.06 1.19 16.06 84.83 167.06 120.13 39.14 2.71 0.00 0.00 425.21
S.D. 0.00 0.00 0.65 3.45 17.37 50.83 64.91 58.07 29.91 5.50 0.00 0.00 134.41
SKEW 0.00 0.00 10.63 4.47 1.11 1.18 0.68 1.11 1.09 2.98 0.00 0.00 0.28
MAX 0.00 0.00 7.00 23.50 70.27 286.80 367.00 364.50 140.00 32.50 0.00 0.00 763.00
MIN 0.00 0.00 0.00 0.00 0.00 8.00 17.00 27.50 0.00 0.00 0.00 0.00 110.00
NO YRS 112 112 116 117 113 117 118 118 119 118 111 113 87