COLLBRAN, COLORADO

Monthly Total Cooling Degree Days

(051741)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 199912
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 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
1894 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
1895 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
1896 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
1897 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
1898 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
1899 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
1900 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 v 0.00 0.00 0.00
1901 0.00 0.00 0.00 0.00 5.00 57.00 291.50 149.50 9.00 0.00 0.00 a 0.00 b 512.00
1902 0.00 0.00 0.00 0.00 2.00 86.00 119.00 149.00 25.50 0.00 0.00 0.00 381.50
1903 0.00 0.00 0.00 0.00 0.00 33.00 120.50 141.50 17.00 0.00 0.00 0.00 312.00
1904 0.00 0.00 0.00 0.00 0.00 8.00 96.00 86.50 4.00 0.00 0.00 0.00 194.50
1905 0.00 0.00 0.00 0.00 0.00 36.00 128.00 124.00 12.00 0.00 0.00 0.00 300.00
1906 0.00 0.00 0.00 0.00 0.00 20.50 81.00 72.00 6.00 0.00 0.00 0.00 179.50
1907 0.00 0.00 0.00 0.00 0.00 a 6.00 122.45 a 74.50 1.61 b 0.00 e 0.00 j 0.00 a 204.56
1908 0.00 0.00 0.00 g 0.00 g 0.00 c 3.00 95.00 53.00 8.28 a 0.00 0.00 0.00 159.28
1909 0.00 0.00 0.00 0.00 0.00 37.50 126.50 91.00 3.50 0.00 0.00 0.00 258.50
1910 0.00 0.00 0.00 0.00 1.50 45.00 154.50 86.50 16.50 0.00 a 0.00 0.00 304.00
1911 0.00 0.00 0.00 0.00 1.50 20.50 49.50 68.95 b 11.50 0.00 0.00 0.00 151.95
1912 0.00 0.00 0.00 0.00 0.00 3.00 64.00 41.50 0.00 0.00 0.00 0.00 108.50
1913 0.00 0.00 0.00 0.00 0.50 9.00 75.00 109.00 0.50 0.00 d 0.00 0.00 194.00
1914 0.00 0.00 0.00 0.00 0.00 i 21.00 104.37 a 92.00 28.00 0.00 0.00 a 0.00 245.37
1915 0.00 0.00 0.00 0.00 0.00 13.00 108.50 76.00 13.45 a 0.00 0.00 0.00 210.95
1916 0.00 0.00 0.00 0.00 0.00 19.50 135.00 29.50 1.50 0.00 0.00 0.00 185.50
1917 0.00 0.00 0.00 0.00 0.00 29.50 178.77 a 55.50 17.50 0.00 0.00 0.00 h 281.27
1918 0.00 0.00 a 0.00 e 0.00 0.00 61.00 h 78.00 69.00 4.20 e 0.00 a 0.00 0.00 151.20
1919 0.00 0.00 0.00 0.00 5.00 109.66 a 159.13 a 117.00 34.50 0.00 0.00 0.00 425.29
1920 0.00 0.00 0.00 k 0.00 0.00 a 10.00 124.52 a 93.50 17.59 a 0.00 z 0.00 z 0.00 z 245.60
1921 0.00 z 0.00 z 0.00 z 0.00 1.00 7.50 109.00 28.00 2.00 0.00 f 0.00 b 0.00 g 147.50
1922 0.00 a 0.00 e 0.00 0.00 1.00 38.57 b 98.00 101.50 2.00 0.00 0.00 0.00 241.07
1923 0.00 0.00 0.00 0.00 0.00 12.50 152.00 29.45 a 0.00 0.00 0.00 b 0.00 193.95
1924 0.00 0.00 0.00 0.00 0.00 c 24.44 c 75.95 a 35.00 i 15.00 c 0.00 e 0.00 c 0.00 b 115.39
1925 0.00 0.00 0.00 b 0.00 a 15.50 e 43.20 e 188.38 e 26.19 b 0.54 b 0.00 c 0.00 e 0.00 a 273.81
1926 0.00 a 0.00 b 0.00 c 0.00 a 0.50 41.11 c 0.00 z 0.00 z 0.00 z 0.00 c 0.00 a 0.00 41.61
1927 0.00 0.00 0.00 0.00 a 0.00 a 43.85 d 89.56 d 20.31 b 5.19 d 0.00 a 0.00 b 0.00 158.90
1928 0.00 a 0.00 a 0.00 0.00 0.00 a 7.50 b 94.07 b 61.45 c 2.50 0.00 0.00 0.00 165.52
1929 0.00 0.00 0.00 0.00 0.00 20.69 a 129.88 b 85.25 a 0.00 z 0.00 a 0.00 a 0.00 235.82
1930 0.00 a 0.00 0.00 b 0.00 e 1.19 e 16.15 d 107.98 a 56.12 b 0.54 b 0.00 a 0.00 0.00 181.99
1931 0.00 0.00 0.00 0.00 a 0.00 b 67.24 a 189.50 116.00 25.00 0.00 f 0.00 0.00 397.74
1932 0.00 0.00 0.00 c 0.00 a 0.00 28.20 e 122.45 a 73.88 a 0.00 0.00 0.00 d 0.00 224.53
1933 0.00 0.00 0.00 a 0.00 a 0.00 92.07 a 206.31 b 85.50 22.76 a 0.00 0.00 d 0.00 e 406.64
1934 0.00 a 0.00 b 0.00 b 0.00 a 9.30 a 19.14 a 242.50 165.69 b 2.59 a 0.00 0.00 0.00 a 439.21
1935 0.00 0.00 0.00 a 0.00 0.00 16.00 f 166.76 b 76.98 a 2.00 0.00 b 0.00 0.00 a 245.74
1936 0.00 0.00 0.00 c 0.00 1.19 e 109.66 a 166.50 108.50 5.50 0.00 0.00 0.00 391.35
1937 0.00 d 0.00 0.00 a 0.00 0.00 c 42.50 137.43 a 80.00 8.50 0.00 0.00 0.00 268.43
1938 0.00 0.00 0.00 b 0.00 0.00 b 16.00 58.00 75.95 a 0.00 a 0.00 0.00 0.00 149.95
1939 0.00 a 0.00 0.00 a 0.00 b 0.00 b 21.43 b 140.02 a 72.50 7.50 0.00 0.00 0.00 241.45
1940 0.00 a 0.00 0.00 d 0.00 a 0.00 69.50 169.43 b 94.55 a 15.52 a 0.00 a 0.00 0.00 349.00
1941 0.00 0.00 0.00 a 0.00 2.67 b 15.00 b 67.00 58.00 1.00 f 0.00 0.00 0.00 142.67
1942 0.00 0.00 0.00 a 0.00 a 3.21 b 5.00 96.00 35.65 a 0.00 b 0.00 b 0.00 b 0.00 a 139.86
1943 0.00 a 0.00 a 0.00 b 0.00 0.00 29.50 113.50 50.00 0.00 a 0.00 0.00 0.00 193.00
1944 0.00 0.00 0.00 0.00 0.00 3.50 44.50 49.00 0.00 0.00 0.00 0.00 97.00
1945 0.00 0.00 0.00 0.00 0.00 7.50 87.00 56.00 4.00 0.00 0.00 0.00 154.50
1946 0.00 0.00 0.00 0.00 0.00 33.50 103.00 54.00 1.00 0.00 0.00 f 0.00 191.50
1947 0.00 0.00 0.00 0.00 0.00 1.50 85.00 52.00 12.50 0.00 0.00 0.00 151.00
1948 0.00 0.00 0.00 0.00 15.00 6.50 61.50 15.50 5.50 0.00 0.00 0.00 104.00
1949 0.00 0.00 n 0.00 k 0.00 0.00 12.00 64.00 69.00 3.50 0.50 0.00 0.00 149.00
1950 0.00 0.00 0.00 0.00 0.00 39.50 103.00 46.50 20.00 0.00 0.00 0.00 209.00
1951 0.00 0.00 0.00 0.00 8.00 28.50 202.50 41.00 l 0.00 0.00 0.00 0.00 239.00
1952 0.00 0.00 0.00 0.00 0.00 69.00 134.50 h 71.54 e 5.50 0.00 0.00 0.00 146.04
1953 0.00 0.00 0.00 0.00 3.00 97.00 227.00 86.50 23.50 0.00 0.00 0.00 437.00
1954 0.00 0.00 0.00 0.00 2.50 78.50 240.00 131.00 20.50 0.00 0.00 0.00 472.50
1955 0.00 0.00 0.00 0.00 2.00 33.50 202.57 b 158.00 52.00 0.00 0.00 d 0.00 448.07
1956 0.00 0.00 0.00 0.00 3.50 98.50 169.50 72.50 39.50 0.52 a 0.00 0.00 384.02
1957 0.00 0.00 0.00 0.00 0.00 43.50 134.50 107.50 1.50 1.00 0.00 0.00 e 288.00
1958 0.00 0.00 0.00 0.00 17.50 80.00 140.00 224.00 43.00 0.00 0.00 0.00 504.50
1959 0.00 0.00 0.00 0.00 1.50 100.50 172.50 118.50 31.50 0.00 0.00 0.00 424.50
1960 0.00 0.00 0.00 0.00 0.00 52.50 197.00 172.00 46.00 0.00 0.00 0.00 467.50
1961 0.00 0.00 0.00 0.00 b 0.00 107.50 172.00 160.00 3.00 0.00 0.00 0.00 j 442.50
1962 0.00 0.00 0.00 0.00 4.00 81.67 c 167.50 177.00 33.50 0.00 0.00 0.00 463.67
1963 0.00 0.00 0.00 0.00 3.00 57.50 270.22 a 136.00 34.00 0.00 0.00 0.00 500.72
1964 0.00 0.00 b 0.00 0.00 8.00 38.50 288.50 129.34 b 12.00 0.00 0.00 0.00 476.34
1965 0.00 0.00 0.00 0.00 0.00 10.50 129.50 84.50 0.50 0.00 0.00 0.00 225.00
1966 0.00 0.00 0.00 0.00 3.50 54.50 275.00 149.50 16.00 0.00 0.00 0.00 498.50
1967 0.00 z 0.00 z 0.00 z 0.00 l 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
1968 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
1969 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
1970 0.00 z 0.00 0.00 0.00 1.50 50.50 112.50 93.00 2.00 0.00 0.00 0.00 259.50
1971 0.00 0.00 0.00 0.00 0.00 40.50 101.50 64.00 7.00 0.00 b 0.00 0.00 a 213.00
1972 0.00 0.00 a 0.00 a 0.00 f 0.00 g 26.67 c 37.50 51.48 c 1.55 a 0.00 a 0.00 d 0.00 h 117.20
1973 0.00 0.00 0.00 0.00 g 0.00 p 27.00 45.00 53.70 c 0.00 c 0.00 b 0.00 0.00 125.70
1974 0.00 0.00 0.00 m 0.00 z 0.00 f 62.50 69.50 1.00 0.00 0.00 0.00 0.00 b 133.00
1975 0.00 0.00 0.00 0.00 a 0.00 24.50 77.50 18.50 1.00 0.00 0.00 0.00 121.50
1976 0.00 0.00 0.00 0.00 0.00 18.00 178.50 50.50 2.00 0.00 z 0.00 0.00 z 249.00
1977 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
1978 0.00 z 0.00 z 0.00 z 0.00 5.00 66.50 221.50 129.00 42.00 0.00 0.00 0.00 464.00
1979 0.00 0.00 0.00 0.00 0.00 z 76.50 184.00 132.50 44.50 0.00 0.00 a 0.00 437.50
1980 0.00 0.00 0.00 0.00 0.00 96.50 222.00 128.00 8.50 0.00 d 0.00 0.00 455.00
1981 0.00 b 0.00 a 0.00 a 0.00 0.52 a 98.50 183.50 137.00 12.50 0.00 a 0.00 a 0.00 432.02
1982 0.00 0.00 0.00 0.00 0.00 29.50 143.00 150.00 18.00 0.00 0.00 0.00 340.50
1983 0.00 0.00 0.00 0.00 0.00 15.00 100.00 121.50 32.00 0.00 0.00 0.00 268.50
1984 0.00 0.00 0.00 0.00 4.00 23.50 137.50 132.00 23.00 0.00 0.00 0.00 320.00
1985 0.00 0.00 i 0.00 0.00 0.00 60.50 152.50 127.50 14.50 0.00 0.00 0.00 355.00
1986 0.00 0.00 0.00 0.00 0.00 58.00 78.50 94.00 3.00 0.00 0.00 0.00 233.50
1987 0.00 0.00 0.00 0.00 0.00 36.00 105.50 64.00 3.50 0.00 0.00 0.00 209.00
1988 0.00 0.00 0.00 0.00 3.50 53.00 105.00 37.00 0.00 0.00 0.00 0.00 198.50
1989 0.00 0.00 0.00 0.00 1.50 27.00 158.50 44.00 7.50 0.00 0.00 0.00 238.50
1990 0.00 0.00 0.00 0.00 3.00 118.50 160.50 86.00 43.00 0.00 0.00 0.00 411.00
1991 0.00 0.00 0.00 0.00 0.50 16.50 134.50 131.00 21.00 0.00 0.00 0.00 303.50
1992 0.00 0.00 0.00 0.00 0.00 31.50 83.00 104.50 1.50 0.00 0.00 0.00 220.50
1993 0.00 0.00 0.00 0.00 1.00 46.50 132.50 73.00 5.50 0.00 0.00 0.00 258.50
1994 0.00 0.00 0.00 0.00 8.00 139.50 252.50 212.50 25.50 0.00 0.00 0.00 638.00
1995 0.00 0.00 0.00 0.00 l 0.00 19.50 137.00 188.50 63.50 0.00 0.00 0.00 408.50
1996 0.00 0.00 0.00 0.00 9.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 9.00
1997 0.00 z 0.00 z 0.00 z 0.00 0.50 61.00 114.50 98.00 16.00 0.00 0.00 0.00 290.00
1998 0.00 0.00 0.00 0.00 0.00 13.50 184.50 146.50 35.50 l 2.00 0.00 0.00 346.50
1999 0.00 0.00 0.00 0.00 0.00 a 51.50 145.50 93.00 5.56 c 0.00 0.00 a 0.00 295.56
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.00 1.78 41.98 137.24 91.90 12.91 0.04 0.00 0.00 295.38
S.D. 0.00 0.00 0.00 0.00 3.46 31.77 57.76 45.75 14.35 0.24 0.00 0.00 127.82
SKEW 0.00 0.00 0.00 0.00 2.77 0.94 0.67 0.51 1.34 6.57 0.00 0.00 0.47
MAX 0.00 0.00 0.00 0.00 17.50 139.50 291.50 224.00 63.50 2.00 0.00 0.00 638.00
MIN 0.00 0.00 0.00 0.00 0.00 1.50 37.50 1.00 0.00 0.00 0.00 0.00 97.00
NO YRS 91 90 88 90 90 92 92 91 90 90 92 89 65