COLFAX, WASHINGTON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 37.0 43.8 50.6 58.5 66.8 74.8 83.4 83.4 74.2 62.3 46.4 37.7 59.9
Highest Mean Max. Temperature (F) 44.5 49.6 56.4 66.2 71.1 82.6 91.2 90.7 82.4 69.7 51.7 44.3 62.0
Year Highest Occurred 1983 1983 1986 1977 1966 1961 1985 1971 1990 1988 1965 1979 1987
Lowest Mean Max. Temperature (F) 24.0 31.7 44.9 52.3 60.4 68.2 77.7 77.1 66.6 57.8 32.8 27.3 57.0
Year Lowest Occurred 1979 1989 1971 1975 1962 1971 1986 1975 1985 1990 1985 1985 1985
Mean Temperature (F) 30.3 35.8 40.9 47.0 53.9 61.1 66.9 66.5 58.2 48.2 38.4 31.3 48.2
Highest Mean Temperature (F) 37.5 41.0 46.5 52.9 57.3 66.2 71.1 71.3 64.3 54.2 43.2 37.8 49.9
Year Highest Occurred 1983 1983 1986 1987 1987 1961 1985 1961 1967 1988 1965 1979 1987
Lowest Mean Temperature (F) 15.0 24.4 36.2 41.9 50.4 56.7 63.4 61.6 52.7 44.6 25.8 20.1 44.8
Year Lowest Occurred 1979 1989 1971 1975 1962 1971 1986 1980 1970 1971 1985 1985 1985
Mean Min. Temperature (F) 23.6 27.7 31.1 35.6 41.0 47.3 50.3 49.6 42.1 34.0 30.5 24.9 36.5
Highest Mean Min. Temperature (F) 31.2 33.6 36.5 40.2 44.2 50.5 55.3 53.0 47.1 38.7 35.1 32.9 38.4
Year Highest Occurred 1981 1961 1986 1987 1987 1969 1975 1983 1963 1988 1990 1966 1986
Lowest Mean Min. Temperature (F) 6.0 17.1 25.2 31.4 37.7 44.0 48.0 44.5 36.5 29.0 18.7 12.8 32.5
Year Lowest Occurred 1979 1989 1965 1975 1977 1980 1981 1980 1970 1978 1985 1985 1985
Mean Precipitation (in.) 2.40 1.92 1.99 1.55 1.51 1.25 0.67 0.77 0.92 1.15 2.27 2.79 19.19
Highest Precipitation (in.) 6.45 4.31 4.10 3.35 4.07 2.90 2.04 3.14 2.84 2.64 6.88 5.85 25.02
Year Highest Occurred 1970 1961 1983 1969 1980 1971 1970 1989 1968 1962 1973 1973 1971
Lowest Precipitation (in.) 0.28 0.35 0.42 0.17 0.47 0.30 0.00 0.00 0.00 0.00 0.42 0.68 13.30
Year Lowest Occurred 1963 1977 1965 1977 1964 1962 1969 1988 1990 1987 1976 1985 1987
Heating Degree Days (F) 1076. 818. 747. 540. 344. 153. 32. 64. 230. 521. 798. 1045. 6368.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 36. 91. 111. 26. 0. 0. 0. 264.

Western Regional Climate Center, wrcc@dri.edu