ANTERO RSVR, COLORADO

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 30.6 34.1 39.1 47.7 58.3 69.4 75.2 72.2 65.6 55.6 40.5 31.4 51.6
Highest Mean Max. Temperature (F) 42.2 40.4 48.2 54.9 63.0 74.8 80.0 74.8 70.1 62.0 47.8 43.1 54.5
Year Highest Occurred 1986 1981 1986 1981 1963 1990 1980 1985 1990 1963 1981 1980 1977
Lowest Mean Max. Temperature (F) 21.4 27.0 28.8 38.1 51.8 62.7 70.7 68.5 59.3 40.8 26.9 21.0 49.5
Year Lowest Occurred 1962 1973 1965 1970 1980 1969 1973 1968 1961 1969 1972 1986 1973
Mean Temperature (F) 12.7 16.3 23.3 32.8 42.5 51.6 57.6 55.5 48.0 37.5 23.9 14.4 34.7
Highest Mean Temperature (F) 23.5 23.1 31.3 38.7 45.9 55.5 60.1 58.3 52.4 43.2 31.2 25.8 37.6
Year Highest Occurred 1986 1986 1986 1981 1989 1988 1966 1988 1990 1963 1981 1980 1977
Lowest Mean Temperature (F) 2.8 6.2 9.4 22.8 39.1 47.8 54.8 53.1 44.5 26.5 9.8 0.3 32.5
Year Lowest Occurred 1962 1973 1965 1970 1983 1975 1973 1976 1968 1969 1972 1986 1987
Mean Min. Temperature (F) -5.1 -1.5 7.4 17.8 26.7 33.7 39.9 38.8 30.4 19.2 7.2 -2.6 17.7
Highest Mean Min. Temperature (F) 8.6 9.3 18.9 23.1 31.0 39.3 43.8 43.1 34.9 24.3 14.6 8.6 20.6
Year Highest Occurred 1969 1986 1974 1962 1989 1988 1981 1988 1981 1963 1981 1977 1977
Lowest Mean Min. Temperature (F) -19.6 -14.6 -13.2 7.4 23.3 29.5 37.5 33.6 25.2 12.2 -7.4 -20.4 13.6
Year Lowest Occurred 1984 1973 1987 1970 1967 1975 1979 1962 1968 1969 1972 1986 1987
Mean Precipitation (in.) 0.18 0.26 0.50 0.61 0.88 1.13 2.04 2.15 1.00 0.69 0.36 0.33 10.13
Highest Precipitation (in.) 0.44 0.92 1.35 1.75 2.61 3.00 4.21 5.40 2.87 2.68 1.31 0.67 14.50
Year Highest Occurred 1987 1987 1961 1980 1979 1988 1965 1970 1982 1969 1986 1967 1969
Lowest Precipitation (in.) 0.00 0.03 0.06 0.00 0.05 0.00 0.16 0.04 0.03 0.01 0.01 0.06 5.42
Year Lowest Occurred 1968 1973 1989 1981 1974 1968 1978 1985 1987 1983 1984 1970 1978
Heating Degree Days (F) 1621. 1364. 1293. 966. 698. 402. 229. 295. 510. 853. 1233. 1569. 11033.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.

Western Regional Climate Center, wrcc@dri.edu