GRAND MARAIS, MINNESOTA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 22.2 25.7 34.8 46.7 56.4 63.6 70.5 70.3 62.4 52.1 38.5 26.6 47.5
Highest Mean Max. Temperature (F) 31.3 35.4 40.8 52.9 63.8 68.3 77.5 76.2 66.4 64.6 44.9 33.3 50.8
Year Highest Occurred 1990 1987 1985 1987 1964 1971 1970 1983 1966 1963 1963 1979 1987
Lowest Mean Max. Temperature (F) 14.2 15.8 29.1 41.1 50.0 57.4 65.8 65.2 57.8 47.5 32.8 17.5 44.3
Year Lowest Occurred 1963 1979 1989 1975 1979 1989 1979 1977 1974 1981 1985 1983 1979
Mean Temperature (F) 13.1 16.5 26.9 38.6 47.5 54.1 61.3 62.0 54.8 44.9 32.0 18.8 39.2
Highest Mean Temperature (F) 22.2 27.9 33.3 43.1 53.9 58.4 67.1 66.8 57.9 55.4 37.9 26.8 43.2
Year Highest Occurred 1990 1987 1977 1980 1964 1970 1970 1983 1987 1963 1963 1974 1987
Lowest Mean Temperature (F) 4.9 6.5 21.5 34.9 43.2 49.9 57.0 56.6 49.7 40.7 26.2 8.9 36.7
Year Lowest Occurred 1982 1979 1989 1975 1983 1989 1979 1977 1974 1976 1985 1983 1979
Mean Min. Temperature (F) 3.9 7.2 19.0 30.5 38.5 44.6 52.1 53.8 47.1 37.7 25.5 10.9 30.9
Highest Mean Min. Temperature (F) 13.7 20.4 27.5 34.3 44.0 48.4 57.5 57.9 51.0 46.1 30.8 20.8 35.6
Year Highest Occurred 1964 1987 1973 1986 1964 1970 1987 1981 1987 1963 1963 1974 1987
Lowest Mean Min. Temperature (F) -6.7 -3.6 12.7 26.6 35.3 41.8 48.1 48.0 41.6 33.7 18.9 -0.4 28.3
Year Lowest Occurred 1972 1967 1972 1982 1983 1983 1979 1977 1974 1976 1976 1976 1972
Mean Precipitation (in.) 0.90 0.65 1.35 1.87 2.82 3.50 3.26 3.26 3.59 2.50 1.61 1.08 26.39
Highest Precipitation (in.) 3.83 1.97 4.43 5.45 5.82 6.95 6.20 7.82 7.47 7.19 4.23 2.79 39.76
Year Highest Occurred 1969 1962 1979 1964 1964 1989 1968 1988 1977 1970 1982 1968 1970
Lowest Precipitation (in.) 0.01 0.08 0.10 0.07 0.35 0.53 0.88 0.67 0.93 0.23 0.13 0.31 16.52
Year Lowest Occurred 1981 1968 1962 1987 1976 1987 1989 1981 1976 1962 1976 1986 1976
Heating Degree Days (F) 1609. 1358. 1181. 792. 543. 327. 152. 133. 306. 623. 990. 1432. 9446.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 0. 37. 40. 0. 0. 0. 0. 77.

Western Regional Climate Center, wrcc@dri.edu