CENTER 4 SSW, COLORADO

Monthly Total Cooling Degree Days

(051458)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1941 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 b 0.00
1942 0.00 0.00 0.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 0.00 0.00 3.00
1943 0.00 0.00 0.00 z 0.00 r 0.00 12.00 23.50 6.00 0.00 0.00 0.00 0.00 41.50
1944 0.00 0.00 0.00 0.00 0.00 20.00 3.00 4.00 0.00 a 0.00 0.00 0.00 27.00
1945 0.00 0.00 0.00 0.00 0.00 0.00 a 23.00 9.00 1.00 0.00 0.00 0.00 33.00
1946 0.00 a 0.00 0.00 0.00 0.00 11.50 27.12 c 3.50 0.00 0.00 0.00 0.00 42.12
1947 0.00 a 0.00 b 0.00 0.00 0.00 0.00 19.00 9.00 0.00 0.00 0.00 0.00 28.00
1948 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 b 0.00 0.00 b 15.50
1949 0.00 0.00 b 0.00 0.00 g 0.00 1.50 11.00 0.00 0.00 c 0.00 g 0.00 0.00 12.50
1950 0.00 c 0.00 b 0.00 f 0.00 b 0.00 c 2.00 4.50 0.00 0.00 0.00 e 0.00 0.00 6.50
1951 0.00 0.00 0.00 0.00 2.07 a 4.50 95.00 10.85 a 2.50 0.00 0.00 0.00 114.92
1952 0.00 0.00 0.00 a 0.00 0.00 12.50 18.50 4.98 c 0.00 0.00 0.00 0.00 35.98
1953 0.00 0.00 0.00 0.00 0.00 5.00 38.00 0.00 0.00 0.00 a 0.00 0.00 43.00
1954 0.00 0.00 0.00 0.00 0.00 80.00 43.50 3.00 1.50 0.00 e 0.00 d 0.00 128.00
1955 0.00 0.00 0.00 0.00 0.00 0.50 28.00 28.00 0.00 0.00 0.00 0.00 56.50
1956 0.00 0.00 0.00 0.00 1.00 10.00 20.50 2.00 0.00 0.00 0.00 0.00 33.50
1957 0.00 0.00 0.00 0.00 0.00 11.50 24.00 5.00 0.00 0.00 0.00 0.00 40.50
1958 0.00 0.00 0.00 0.00 0.00 5.50 6.00 16.50 0.00 0.00 0.00 0.00 28.00
1959 0.00 0.00 0.00 0.00 0.00 5.00 1.50 2.00 0.00 0.00 0.00 0.00 8.50
1960 0.00 0.00 0.00 0.00 0.00 3.50 5.00 1.50 0.00 0.00 0.00 0.00 10.00
1961 0.00 0.00 0.00 0.00 0.00 1.50 3.00 6.00 0.00 0.00 0.00 0.00 10.50
1962 0.00 0.00 0.00 0.00 0.00 0.00 2.00 2.50 0.00 0.00 0.00 0.00 4.50
1963 0.00 0.00 0.00 0.00 b 0.00 1.00 33.00 8.00 0.00 0.00 0.00 0.00 42.00
1964 0.00 0.00 0.00 0.00 0.00 1.00 62.00 8.00 0.00 0.00 0.00 0.00 71.00
1965 0.00 0.00 0.00 0.00 0.00 0.00 18.08 a 0.00 0.00 0.00 0.00 0.00 18.08
1966 0.00 0.00 0.00 0.00 0.00 0.00 33.50 6.00 0.00 0.00 0.00 0.00 39.50
1967 0.00 0.00 0.00 0.00 0.00 0.00 30.00 4.50 0.00 0.00 0.00 0.00 34.50
1968 0.00 0.00 0.00 0.00 0.00 2.50 7.50 0.00 0.00 0.00 0.00 0.00 10.00
1969 0.00 0.00 0.00 0.00 0.00 0.00 33.50 34.00 0.00 0.00 0.00 0.00 67.50
1970 0.00 0.00 0.00 0.00 0.00 9.00 16.00 14.00 0.00 a 0.00 0.00 0.00 39.00
1971 0.00 0.00 0.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 0.00 0.00 6.00
1972 0.00 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 0.00 0.00 0.00 1.00
1973 0.00 0.00 0.00 0.00 0.00 15.50 12.00 0.00 0.00 0.00 0.00 0.00 27.50
1974 0.00 0.00 0.00 0.00 0.00 14.00 2.00 0.00 0.00 0.00 0.00 0.00 16.00
1975 0.00 0.00 0.00 0.00 0.00 0.00 2.00 0.50 0.00 a 0.00 0.00 0.00 2.50
1976 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1977 0.00 0.00 0.00 0.00 0.00 0.00 1.00 1.00 0.00 0.00 0.00 0.00 2.00
1978 0.00 0.00 0.00 0.00 0.00 0.00 0.50 0.00 0.00 0.00 0.00 0.00 0.50
1979 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1980 0.00 0.00 0.00 0.00 0.00 1.00 2.50 0.00 0.00 0.00 0.00 0.00 3.50
1981 0.00 0.00 0.00 0.00 0.00 15.00 a 8.50 6.00 0.00 0.00 0.00 a 0.00 29.50
1982 0.00 0.00 0.00 0.00 0.00 0.00 1.00 2.50 0.00 0.00 0.00 0.00 3.50
1983 0.00 0.00 0.00 0.00 0.00 0.00 6.50 9.00 0.00 0.00 0.00 0.00 15.50
1984 0.00 0.00 0.00 0.00 0.00 1.00 4.00 3.50 0.00 0.00 0.00 0.00 8.50
1985 0.00 0.00 0.00 b 0.00 0.00 4.00 15.00 4.50 0.00 0.00 0.00 0.00 23.50
1986 0.00 0.00 0.00 0.00 a 0.00 a 0.50 0.50 3.50 0.00 0.00 0.00 0.00 4.50
1987 0.00 0.00 0.00 0.00 0.00 0.00 8.50 0.00 0.00 0.00 0.00 0.00 8.50
1988 0.00 0.00 0.00 0.00 0.00 4.50 7.00 3.00 0.00 0.00 0.00 0.00 14.50
1989 0.00 0.00 0.00 0.00 0.00 0.00 14.50 0.00 0.00 0.00 0.00 0.00 14.50
1990 0.00 0.00 0.00 0.00 0.00 7.50 7.00 0.00 0.00 0.00 0.00 0.00 14.50
1991 0.00 0.00 0.00 0.00 0.00 0.00 15.00 0.00 0.50 0.00 0.00 0.00 15.50
1992 0.00 0.00 0.00 0.00 0.00 0.00 2.00 2.00 0.00 0.00 0.00 0.00 4.00
1993 0.00 0.00 0.00 0.00 0.00 1.00 1.50 0.50 0.00 0.00 0.00 0.00 3.00
1994 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 0.00
1995 0.00 0.00 0.00 0.00 0.00 0.50 1.50 8.00 5.50 0.00 0.00 0.00 15.50
1996 0.00 0.00 0.00 0.00 2.00 0.00 14.50 6.00 0.00 0.00 0.00 0.00 22.50
1997 0.00 0.00 0.00 a 0.00 0.00 a 0.00 5.50 8.50 0.00 0.00 0.00 0.00 14.00
1998 0.00 0.00 0.00 0.00 0.00 11.50 18.00 4.00 0.00 0.00 0.00 0.00 33.50
1999 0.00 0.00 0.00 a 0.00 0.00 9.50 11.50 1.00 0.00 0.00 0.00 0.00 22.00
2000 0.00 0.00 0.00 0.00 d 0.00 0.00 10.50 7.00 2.50 0.00 0.00 0.00 20.00
2001 0.00 0.00 0.00 0.00 0.00 5.00 32.00 8.50 0.00 0.00 0.00 0.00 45.50
2002 0.00 0.00 0.00 0.00 4.50 11.00 33.50 4.00 0.00 0.00 0.00 0.00 53.00
2003 0.00 z 0.00 0.00 0.00 3.00 0.00 85.00 33.00 0.00 0.00 0.00 0.00 121.00
2004 0.00 0.00 0.00 0.00 0.00 1.50 17.50 4.50 0.00 0.00 0.00 0.00 23.50
2005 0.00 0.00 0.00 0.00 3.00 5.00 42.50 6.00 0.00 0.00 0.00 0.00 56.50
2006 0.00 0.00 0.00 0.00 0.00 14.50 55.00 6.00 0.00 z 0.00 0.00 0.00 75.50
2007 0.00 0.00 0.00 0.00 0.00 15.50 53.50 34.50 0.00 0.00 0.00 0.00 103.50
2008 0.00 0.00 0.00 0.00 0.00 0.00 8.50 4.50 0.00 0.00 0.00 0.00 13.00
2009 0.00 0.00 0.00 0.00 0.00 2.00 0.00 z 0.50 0.00 0.00 z 0.00 z 0.00 z 2.50
2010 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
2011 0.00 n 0.00 k 0.00 k 0.00 n 0.00 p 10.00 l 61.50 m 24.50 k 2.50 j 0.00 k 0.00 i 0.00 n 0.00
2012 0.00 l 0.00 k 0.00 n 0.00 n 0.00 t 31.00 n 34.50 q 13.00 i 0.00 o 0.00 p 0.00 k 0.00 n 0.00
2013 0.00 s 0.00 n 0.00 p 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 0.00 0.00 0.24 5.17 17.52 5.61 0.20 0.00 0.00 0.00 26.83
S.D. 0.00 0.00 0.00 0.00 0.82 10.76 19.80 7.86 0.81 0.00 0.00 0.00 27.09
SKEW 0.00 0.00 0.00 0.00 3.67 5.29 1.89 2.44 5.00 0.00 0.00 0.00 1.87
MAX 0.00 0.00 0.00 0.00 4.50 80.00 95.00 34.50 5.50 0.00 0.00 0.00 128.00
MIN 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
NO YRS 66 67 64 64 66 66 65 67 67 66 67 68 60