NORTHDALE, COLORADO

Monthly Total Cooling Degree Days

(055970)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200212
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
1930 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5.50 h 73.50 39.00 0.00 0.00 0.00 0.00 112.50
1931 0.00 0.00 0.00 0.00 0.00 34.50 149.00 40.50 11.50 0.00 0.00 0.00 i 235.50
1932 0.00 0.00 0.00 0.00 j 0.00 17.00 82.50 53.50 0.00 0.00 0.00 0.00 153.00
1933 0.00 0.00 0.00 0.00 0.00 39.50 147.00 63.00 9.00 0.00 0.00 0.00 258.50
1934 0.00 0.00 0.00 0.00 2.00 21.00 143.00 92.50 7.50 0.00 0.00 0.00 266.00
1935 0.00 0.00 0.00 0.00 0.00 0.00 14.50 4.00 0.00 0.00 0.00 0.00 18.50
1936 0.00 0.00 0.00 0.00 0.00 107.50 175.50 90.50 0.00 0.00 0.00 0.00 373.50
1937 0.00 0.00 0.00 0.00 0.00 39.50 67.50 k 101.00 4.50 0.00 0.00 0.00 145.00
1938 0.00 0.00 0.00 0.00 0.00 9.50 r 70.00 121.50 0.00 0.00 0.00 0.00 191.50
1939 0.00 0.00 0.00 0.00 2.00 18.50 136.00 72.50 15.50 0.00 0.00 0.00 244.50
1940 0.00 0.00 0.00 0.00 0.00 53.00 145.50 90.00 4.00 0.00 0.00 0.00 292.50
1941 0.00 0.00 0.00 0.00 0.00 2.00 40.50 34.50 7.50 0.00 0.00 0.00 84.50
1942 0.00 0.00 0.00 0.00 0.00 1.50 106.00 52.00 0.00 0.00 0.00 0.00 159.50
1943 0.00 b 0.00 c 0.00 0.00 0.00 15.00 97.00 66.50 0.00 0.00 0.00 0.00 178.50
1944 0.00 0.00 0.00 0.00 0.00 4.50 49.50 0.00 z 0.00 0.00 0.00 0.00 54.00
1945 0.00 0.00 0.00 0.00 0.00 8.50 111.00 99.00 25.00 0.00 0.00 0.00 243.50
1946 0.00 0.00 0.00 0.00 3.50 17.00 144.50 87.50 0.00 0.00 0.00 0.00 252.50
1947 0.00 0.00 0.00 0.00 0.00 6.50 126.50 83.50 13.50 0.00 0.00 0.00 230.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 62.00 14.00 0.50 0.00 0.00 a 76.50
1949 0.00 0.00 0.00 0.00 0.00 g 12.86 b 81.00 39.50 6.50 0.00 0.00 0.00 139.86
1950 0.00 0.00 0.00 0.00 0.00 16.50 71.50 27.50 5.00 0.00 0.00 0.00 120.50
1951 0.00 0.00 0.00 0.00 4.50 17.50 175.00 58.00 0.00 0.00 0.00 0.00 255.00
1952 0.00 0.00 0.00 0.00 0.00 9.00 98.50 101.50 8.00 0.00 0.00 0.00 217.00
1953 0.00 0.00 0.00 0.00 3.00 36.50 158.50 48.50 1.00 0.00 0.00 0.00 247.50
1954 0.00 0.00 0.00 0.00 0.00 53.50 186.50 40.00 10.00 0.00 0.00 0.00 290.00
1955 0.00 0.00 0.00 0.00 0.00 5.50 92.00 106.00 8.50 0.00 0.00 0.00 a 212.00
1956 0.00 0.00 0.00 0.00 0.00 33.50 77.50 19.12 a 0.50 0.00 0.00 0.00 130.62
1957 0.00 0.00 0.00 0.00 a 0.00 22.00 68.50 57.00 0.00 0.00 0.00 0.00 147.50
1958 0.00 0.00 0.00 0.00 6.50 36.00 75.00 136.50 11.00 0.00 a 0.00 0.00 265.00
1959 0.00 a 0.00 0.00 0.00 0.00 54.00 147.00 69.00 5.50 0.00 0.00 0.00 275.50
1960 0.00 0.00 0.00 0.00 0.00 4.00 g 118.83 a 125.00 23.50 0.00 0.00 0.00 267.33
1961 0.00 0.00 0.00 0.00 0.00 65.00 134.00 107.00 0.00 0.00 0.00 0.00 306.00
1962 0.00 0.00 0.00 0.00 1.00 27.50 61.50 93.50 4.00 0.00 0.00 0.00 187.50
1963 0.00 0.00 0.00 0.00 0.00 13.00 128.65 a 77.50 2.50 0.00 0.00 0.00 221.65
1964 0.00 0.00 0.00 0.00 0.00 22.50 158.50 61.00 0.50 0.00 0.00 0.00 242.50
1965 0.00 0.00 0.00 0.00 0.00 0.00 77.00 57.00 0.00 0.00 0.00 0.00 134.00
1966 0.00 a 0.00 0.00 0.00 0.00 8.50 154.50 97.00 0.00 0.00 0.00 0.00 a 260.00
1967 0.00 0.00 0.00 0.00 0.00 3.00 130.00 68.50 5.50 0.00 0.00 0.00 207.00
1968 0.00 0.00 0.00 0.00 0.00 40.50 84.00 19.50 1.50 0.00 0.00 0.00 145.50
1969 0.00 0.00 0.00 0.00 0.00 3.50 131.50 139.00 5.50 0.00 0.00 0.00 279.50
1970 0.00 0.00 0.00 0.00 0.00 50.00 120.50 124.50 8.50 0.00 0.00 0.00 303.50
1971 0.00 0.00 0.00 0.00 0.00 21.00 128.50 105.00 11.50 0.00 0.00 0.00 266.00
1972 0.00 0.00 0.00 0.00 0.00 19.00 153.50 94.50 3.00 0.00 0.00 0.00 270.00
1973 0.00 0.00 0.00 0.00 0.00 18.00 71.50 56.50 0.00 0.00 0.00 0.00 146.00
1974 0.00 0.00 0.00 0.00 0.00 84.00 89.50 18.50 1.50 0.00 0.00 0.00 193.50
1975 0.00 0.00 0.00 0.00 0.00 1.50 66.50 30.00 4.00 0.00 0.00 0.00 102.00
1976 0.00 0.00 0.00 0.00 0.00 13.50 129.00 52.00 7.50 0.00 0.00 0.00 202.00
1977 0.00 0.00 0.00 0.00 3.00 60.00 152.50 100.50 34.66 a 0.00 0.00 0.00 350.66
1978 0.00 0.00 0.00 0.00 0.00 27.00 108.00 61.50 22.00 0.00 0.00 0.00 218.50
1979 0.00 0.00 0.00 0.00 0.00 14.00 98.68 a 61.00 11.00 0.00 0.00 0.00 184.68
1980 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 122.00 p 112.50 1.00 0.00 0.00 0.00 113.50
1981 0.00 0.00 0.00 0.00 0.00 92.00 143.50 72.50 0.50 0.00 0.00 0.00 308.50
1982 0.00 0.00 0.00 0.00 0.00 17.50 125.50 121.00 17.50 0.00 0.00 0.00 281.50
1983 0.00 0.00 0.00 0.00 0.00 7.00 109.50 123.50 23.50 0.00 0.00 0.00 263.50
1984 0.00 0.00 0.00 0.00 6.50 33.00 183.00 116.50 9.00 0.00 0.00 0.00 348.00
1985 0.00 0.00 0.00 0.00 0.00 45.50 145.00 77.00 16.00 0.00 0.00 0.00 283.50
1986 0.00 0.00 a 0.00 0.00 0.00 22.00 86.00 137.00 1.00 0.00 0.00 0.00 246.00
1987 0.00 0.00 0.00 0.00 0.00 35.00 98.00 61.00 4.00 0.00 0.00 0.00 198.00
1988 0.00 0.00 0.00 0.00 0.00 66.00 129.00 80.00 10.50 0.00 0.00 0.00 285.50
1989 0.00 0.00 0.00 0.00 0.00 25.00 146.50 35.50 6.50 0.00 0.00 0.00 213.50
1990 0.00 0.00 0.00 0.00 0.00 60.00 100.00 48.50 27.50 0.00 0.00 0.00 236.00
1991 0.00 0.00 0.00 0.00 0.00 6.50 80.00 55.00 6.00 0.00 0.00 0.00 147.50
1992 0.00 0.00 0.00 z 0.00 0.00 13.50 45.00 97.50 1.00 0.00 0.00 0.00 157.00
1993 0.00 0.00 0.00 0.00 0.00 30.00 73.00 46.50 2.00 0.00 0.00 0.00 151.50
1994 0.00 0.00 0.00 0.00 1.50 161.00 167.00 160.50 6.50 k 0.00 z 0.00 z 0.00 z 490.00
1995 0.00 0.00 0.00 0.00 0.00 2.00 79.00 123.00 33.00 0.00 0.00 0.00 237.00
1996 0.00 0.00 0.00 0.00 2.50 35.00 180.00 101.50 10.00 0.00 0.00 0.00 329.00
1997 0.00 0.00 0.00 0.00 0.00 5.50 76.50 49.00 12.50 0.00 0.00 0.00 143.50
1998 0.00 0.00 0.00 0.00 0.00 9.00 176.00 108.00 20.00 0.00 0.00 0.00 313.00
1999 0.00 0.00 0.00 0.00 0.00 14.00 118.00 47.50 0.00 0.00 b 0.00 0.00 179.50
2000 0.00 0.00 0.00 0.00 15.50 a 34.50 126.50 162.50 11.00 0.00 0.00 0.00 350.00
2001 0.00 0.00 0.00 0.00 1.00 43.50 145.00 91.00 9.00 0.00 0.00 0.00 289.50
2002 0.00 0.00 0.00 0.00 8.50 72.00 216.00 85.50 5.50 0.00 0.00 0.00 387.50
Period of Record Statistics
MEAN 0.00 0.00 0.00 0.00 0.88 29.46 115.53 78.02 7.52 0.01 0.00 0.00 232.38
S.D. 0.00 0.00 0.00 0.00 2.46 28.43 40.76 35.29 8.27 0.06 0.00 0.00 74.18
SKEW 0.00 0.00 0.00 0.00 3.94 2.04 -0.01 0.23 1.40 8.31 0.00 0.00 -0.33
MAX 0.00 0.00 0.00 0.00 15.50 161.00 216.00 162.50 34.66 0.50 0.00 0.00 387.50
MIN 0.00 0.00 0.00 0.00 0.00 0.00 14.50 4.00 0.00 0.00 0.00 0.00 18.50
NO YRS 71 70 69 69 69 68 70 72 72 72 72 71 61