CROW AGENCY, MONTANA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 31.4 39.3 48.7 60.5 69.7 80.3 88.9 87.9 74.6 64.8 46.5 34.0 60.6
Highest Mean Max. Temperature (F) 46.3 50.1 58.8 70.5 77.5 93.9 94.9 95.7 84.1 74.3 53.0 49.1 64.2
Year Highest Occurred 1981 1983 1986 1987 1985 1988 1988 1971 1979 1963 1990 1979 1987
Lowest Mean Max. Temperature (F) 15.0 23.7 34.9 50.1 64.7 73.5 84.0 80.4 59.5 50.8 23.8 14.8 57.1
Year Lowest Occurred 1969 1989 1965 1975 1975 1982 1972 1980 1965 1969 1985 1983 1985
Mean Temperature (F) 17.2 24.9 34.4 45.7 54.9 64.5 71.3 69.6 57.8 47.6 32.1 20.0 45.0
Highest Mean Temperature (F) 29.0 34.9 43.7 51.7 60.1 74.0 76.2 76.4 64.2 54.7 37.6 29.9 47.5
Year Highest Occurred 1981 1983 1986 1987 1985 1988 1966 1983 1966 1963 1990 1979 1987
Lowest Mean Temperature (F) 1.7 9.3 21.9 39.0 51.8 60.3 66.9 63.4 47.6 38.0 12.9 1.5 41.9
Year Lowest Occurred 1979 1989 1965 1975 1968 1969 1972 1980 1965 1969 1985 1983 1985
Mean Min. Temperature (F) 2.8 10.5 20.1 30.9 40.1 48.6 53.5 51.3 40.9 30.4 17.7 5.9 29.4
Highest Mean Min. Temperature (F) 13.3 19.7 28.6 36.4 43.0 54.0 58.9 57.8 47.6 35.0 23.2 15.7 31.3
Year Highest Occurred 1986 1983 1986 1978 1987 1988 1966 1983 1966 1963 1962 1962 1974
Lowest Mean Min. Temperature (F) -14.0 -5.2 8.9 25.7 37.0 45.6 48.8 46.4 35.7 25.1 2.0 -11.8 26.7
Year Lowest Occurred 1979 1989 1965 1983 1983 1969 1971 1980 1965 1969 1985 1983 1985
Mean Precipitation (in.) 0.84 0.70 1.00 1.82 2.60 2.22 0.89 1.10 1.79 1.28 0.93 0.75 15.92
Highest Precipitation (in.) 2.33 1.52 2.94 5.22 8.14 5.68 3.63 4.23 6.28 4.71 2.41 1.90 26.04
Year Highest Occurred 1975 1982 1977 1964 1978 1969 1987 1964 1978 1971 1978 1982 1978
Lowest Precipitation (in.) 0.08 0.07 0.12 0.17 0.71 0.32 0.05 0.00 0.05 0.02 0.06 0.19 9.28
Year Lowest Occurred 1961 1990 1978 1980 1985 1988 1988 1970 1964 1987 1963 1985 1979
Heating Degree Days (F) 1482. 1123. 949. 579. 316. 105. 11. 43. 252. 539. 987. 1395. 7781.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 90. 207. 186. 36. 0. 0. 0. 519.

Western Regional Climate Center, wrcc@dri.edu