RIFLE, COLORADO

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 36.1 44.1 53.1 63.3 72.9 83.2 89.1 86.8 78.2 66.8 50.9 38.5 63.6
Highest Mean Max. Temperature (F) 45.7 51.5 62.0 70.6 79.7 89.9 92.8 90.8 84.0 74.9 55.9 50.1 66.2
Year Highest Occurred 1981 1970 1986 1981 1969 1977 1989 1969 1979 1988 1967 1980 1989
Lowest Mean Max. Temperature (F) 26.3 36.1 43.4 56.7 67.6 77.9 85.3 81.7 68.2 56.1 43.6 28.3 60.5
Year Lowest Occurred 1979 1964 1964 1983 1983 1967 1965 1968 1961 1969 1972 1978 1964
Mean Temperature (F) 22.1 30.0 38.4 46.7 55.4 64.1 70.5 68.5 59.8 48.8 36.4 25.1 47.2
Highest Mean Temperature (F) 30.9 37.2 45.3 52.8 59.8 69.4 73.0 72.8 65.6 54.2 40.5 35.4 49.8
Year Highest Occurred 1981 1986 1986 1989 1969 1988 1989 1983 1990 1988 1965 1980 1986
Lowest Mean Temperature (F) 13.1 21.2 30.4 42.0 51.4 60.3 65.3 64.4 52.8 42.9 30.0 15.4 44.3
Year Lowest Occurred 1963 1974 1964 1970 1975 1962 1962 1962 1961 1969 1979 1978 1975
Mean Min. Temperature (F) 8.1 15.9 23.6 30.2 37.9 44.9 51.9 50.2 41.4 30.6 22.0 11.6 30.7
Highest Mean Min. Temperature (F) 17.7 25.1 29.3 35.9 40.9 50.8 55.6 56.1 47.3 38.2 26.5 20.6 34.0
Year Highest Occurred 1980 1986 1978 1989 1985 1988 1981 1983 1981 1972 1965 1980 1986
Lowest Mean Min. Temperature (F) -2.0 4.0 16.8 26.5 35.0 39.8 44.1 42.2 36.2 25.2 14.5 2.2 27.1
Year Lowest Occurred 1963 1974 1962 1970 1975 1962 1962 1962 1968 1976 1975 1972 1962
Mean Precipitation (in.) 0.95 0.85 1.01 0.95 1.06 0.95 1.01 1.05 1.19 1.35 1.02 1.15 12.54
Highest Precipitation (in.) 2.80 3.94 3.83 2.60 3.22 3.71 2.63 2.60 3.30 3.63 3.59 3.25 21.76
Year Highest Occurred 1980 1980 1980 1985 1979 1984 1989 1984 1986 1969 1985 1978 1985
Lowest Precipitation (in.) 0.01 0.05 0.12 0.08 0.00 0.00 0.21 0.10 0.07 0.03 0.00 0.02 7.96
Year Lowest Occurred 1961 1972 1966 1982 1974 1971 1978 1975 1979 1964 1976 1976 1962
Heating Degree Days (F) 1330. 980. 825. 549. 298. 95. 0. 23. 184. 502. 858. 1237. 6881.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 68. 175. 131. 28. 0. 0. 0. 402.

Western Regional Climate Center, wrcc@dri.edu