LONGMIRE RAINIER NPS, WASHINGTON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 35.2 40.3 44.5 50.0 57.9 65.8 72.7 73.3 66.9 56.3 41.7 35.6 53.4
Highest Mean Max. Temperature (F) 44.7 49.1 50.7 56.6 65.8 75.2 82.3 83.7 76.8 67.7 47.5 40.3 56.2
Year Highest Occurred 1981 1963 1965 1987 1969 1961 1985 1967 1967 1987 1976 1979 1987
Lowest Mean Max. Temperature (F) 29.3 34.7 38.2 44.0 50.9 58.0 63.5 65.0 57.3 49.2 33.2 29.8 51.0
Year Lowest Occurred 1969 1989 1971 1970 1977 1971 1983 1976 1978 1975 1985 1990 1975
Mean Temperature (F) 30.0 33.6 36.5 40.8 47.3 54.3 59.8 60.2 54.7 46.3 36.0 30.9 44.2
Highest Mean Temperature (F) 38.4 40.9 41.3 46.1 52.1 60.5 65.7 66.9 61.7 53.2 40.4 36.1 46.7
Year Highest Occurred 1981 1963 1986 1987 1969 1961 1985 1967 1967 1987 1965 1979 1987
Lowest Mean Temperature (F) 23.9 27.4 31.4 35.9 42.5 48.4 54.4 55.3 49.4 41.9 26.9 24.3 42.2
Year Lowest Occurred 1969 1989 1971 1972 1974 1971 1986 1976 1986 1984 1985 1990 1971
Mean Min. Temperature (F) 24.8 27.0 28.5 31.6 36.6 42.7 46.8 47.1 42.4 36.3 30.2 26.1 35.0
Highest Mean Min. Temperature (F) 32.1 32.7 32.8 35.6 41.0 48.1 50.7 51.0 46.9 42.2 34.9 31.8 37.1
Year Highest Occurred 1981 1963 1983 1987 1987 1969 1975 1961 1963 1988 1965 1979 1987
Lowest Mean Min. Temperature (F) 18.5 20.1 23.6 27.4 31.4 38.5 43.0 43.6 38.4 33.3 20.6 18.8 32.8
Year Lowest Occurred 1969 1989 1976 1975 1964 1976 1986 1970 1986 1970 1985 1990 1971
Mean Precipitation (in.) 13.31 9.16 7.33 5.59 4.13 3.70 1.67 2.34 4.25 6.72 11.52 12.51 82.23
Highest Precipitation (in.) 25.74 19.29 14.01 10.33 9.67 9.20 5.97 8.36 8.38 17.49 20.56 24.96 114.71
Year Highest Occurred 1971 1961 1972 1981 1984 1981 1983 1968 1969 1967 1983 1975 1990
Lowest Precipitation (in.) 0.86 2.72 1.35 2.10 1.55 0.50 0.02 0.05 0.46 0.20 3.68 2.89 59.44
Year Lowest Occurred 1985 1973 1965 1973 1967 1965 1973 1981 1990 1987 1979 1985 1985
Heating Degree Days (F) 1085. 879. 884. 726. 549. 329. 184. 182. 323. 580. 870. 1057. 7648.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 8. 23. 33. 14. 0. 0. 0. 78.

Western Regional Climate Center, wrcc@dri.edu