DEL NORTE 2E, COLORADO

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 34.8 40.6 49.1 58.8 67.4 75.3 78.4 76.2 70.7 62.4 48.2 37.2 58.3
Highest Mean Max. Temperature (F) 45.5 48.8 59.5 65.6 74.2 80.0 83.5 80.1 75.6 67.4 54.5 49.1 61.5
Year Highest Occurred 1981 1970 1972 1981 1984 1981 1980 1983 1983 1967 1967 1980 1981
Lowest Mean Max. Temperature (F) 25.7 32.5 40.8 52.2 63.2 70.6 75.3 72.0 67.1 53.3 36.3 28.6 55.7
Year Lowest Occurred 1984 1966 1964 1983 1980 1969 1973 1976 1965 1969 1972 1978 1975
Mean Temperature (F) 20.5 26.1 34.5 43.0 51.4 58.8 63.5 61.6 55.4 46.6 33.8 23.1 43.2
Highest Mean Temperature (F) 30.0 32.8 41.5 48.3 56.1 63.2 66.9 65.2 59.4 50.5 38.4 33.9 46.1
Year Highest Occurred 1981 1970 1972 1981 1984 1981 1980 1983 1983 1963 1981 1980 1981
Lowest Mean Temperature (F) 10.8 17.8 26.3 38.0 48.7 55.6 60.7 58.8 52.5 40.0 23.6 14.1 41.0
Year Lowest Occurred 1984 1964 1964 1983 1983 1969 1973 1976 1961 1969 1972 1978 1975
Mean Min. Temperature (F) 6.1 11.7 20.0 27.3 35.3 42.3 48.6 47.0 40.0 30.7 19.3 8.9 28.1
Highest Mean Min. Temperature (F) 14.4 18.9 25.1 31.3 38.4 46.4 51.2 50.7 43.2 34.9 23.7 18.6 30.8
Year Highest Occurred 1981 1976 1990 1990 1963 1981 1981 1982 1983 1972 1965 1980 1981
Lowest Mean Min. Temperature (F) -4.1 2.0 11.7 21.9 32.5 39.3 46.0 44.2 36.2 26.6 10.8 -0.5 25.9
Year Lowest Occurred 1984 1964 1964 1970 1971 1975 1973 1974 1968 1970 1972 1978 1964
Mean Precipitation (in.) 0.32 0.41 0.76 0.62 0.77 0.74 1.66 1.93 1.16 0.87 0.60 0.61 10.45
Highest Precipitation (in.) 0.95 1.44 3.13 2.07 2.71 3.53 4.45 4.91 2.76 3.15 1.61 2.54 16.85
Year Highest Occurred 1987 1964 1985 1990 1980 1969 1968 1982 1985 1972 1986 1967 1969
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.00 0.00 0.40 0.57 0.19 0.02 0.00 0.02 5.39
Year Lowest Occurred 1973 1970 1966 1974 1974 1980 1976 1978 1966 1964 1989 1980 1966
Heating Degree Days (F) 1380. 1089. 946. 660. 422. 193. 76. 121. 288. 570. 936. 1299. 7980.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 7. 30. 16. 0. 0. 0. 0. 53.

Western Regional Climate Center, wrcc@dri.edu