DENVER STAPLETON, COLORADO

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 43.2 46.6 52.2 61.8 70.8 81.4 88.2 85.8 76.9 66.3 52.5 44.5 64.2
Highest Mean Max. Temperature (F) 54.7 55.5 61.2 70.2 79.1 89.0 92.4 89.9 82.3 73.8 59.7 55.0 67.4
Year Highest Occurred 1986 1970 1972 1981 1974 1990 1964 1962 1977 1963 1981 1980 1981
Lowest Mean Max. Temperature (F) 30.6 32.7 40.4 51.7 62.5 72.8 82.4 81.2 68.1 49.5 40.4 28.2 60.5
Year Lowest Occurred 1979 1989 1965 1983 1983 1967 1967 1963 1965 1969 1985 1983 1983
Mean Temperature (F) 29.7 33.4 39.0 48.2 57.2 66.9 73.5 71.4 62.3 51.4 39.0 31.0 50.3
Highest Mean Temperature (F) 40.3 39.3 47.1 56.4 61.6 72.6 76.9 74.4 68.2 57.9 45.9 41.2 54.1
Year Highest Occurred 1986 1976 1986 1981 1974 1990 1966 1983 1981 1963 1981 1980 1981
Lowest Mean Temperature (F) 18.0 22.4 29.0 41.0 51.4 60.6 69.1 68.1 55.7 39.0 29.8 17.5 48.3
Year Lowest Occurred 1979 1989 1965 1983 1983 1967 1967 1968 1965 1969 1985 1983 1983
Mean Min. Temperature (F) 16.1 20.2 25.8 34.5 43.6 52.4 58.6 56.9 47.6 36.4 25.4 17.4 36.2
Highest Mean Min. Temperature (F) 25.9 25.7 33.1 42.5 47.5 57.7 62.9 61.1 54.2 42.0 32.0 27.4 40.7
Year Highest Occurred 1986 1983 1986 1981 1987 1988 1980 1983 1981 1963 1981 1980 1981
Lowest Mean Min. Temperature (F) 5.1 12.0 17.5 28.1 39.2 48.4 54.7 53.4 42.4 28.4 19.1 6.7 34.0
Year Lowest Occurred 1963 1989 1965 1968 1968 1967 1972 1974 1971 1969 1985 1983 1968
Mean Precipitation (in.) 0.50 0.57 1.28 1.71 2.40 1.79 1.91 1.51 1.24 0.98 0.87 0.64 15.40
Highest Precipitation (in.) 1.33 1.28 4.56 3.95 6.12 4.69 6.41 5.85 4.67 4.17 2.63 2.84 23.31
Year Highest Occurred 1962 1966 1983 1967 1969 1967 1965 1979 1961 1969 1983 1973 1967
Lowest Precipitation (in.) 0.07 0.01 0.18 0.03 0.06 0.09 0.54 0.16 0.07 0.05 0.15 0.03 8.45
Year Lowest Occurred 1961 1970 1982 1963 1974 1980 1978 1974 1978 1962 1989 1977 1962
Heating Degree Days (F) 1094. 885. 806. 504. 253. 71. 0. 0. 144. 429. 780. 1054. 6020.
Cooling Degree Days (F) 0. 0. 0. 0. 11. 128. 267. 203. 63. 7. 0. 0. 679.

Western Regional Climate Center, wrcc@dri.edu