FORKS 1 E, WASHINGTON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 45.6 49.8 52.6 57.1 62.9 67.8 72.3 73.7 70.5 61.3 50.9 45.4 59.2
Highest Mean Max. Temperature (F) 51.8 56.6 58.2 63.3 68.3 73.9 81.0 79.7 77.9 67.7 55.6 49.9 61.8
Year Highest Occurred 1961 1970 1981 1989 1983 1978 1985 1967 1974 1987 1976 1962 1987
Lowest Mean Max. Temperature (F) 37.1 43.4 47.0 50.7 57.0 61.3 67.6 67.9 64.9 55.8 42.1 39.6 56.8
Year Lowest Occurred 1969 1989 1971 1972 1962 1971 1986 1975 1972 1990 1985 1983 1964
Mean Temperature (F) 39.6 42.4 43.9 47.3 52.3 57.1 60.7 61.8 58.6 51.6 44.0 39.8 49.9
Highest Mean Temperature (F) 44.5 47.8 47.5 51.7 56.4 61.3 65.0 65.2 62.7 55.1 47.6 43.9 51.9
Year Highest Occurred 1986 1963 1986 1989 1983 1969 1985 1977 1974 1987 1987 1979 1987
Lowest Mean Temperature (F) 30.9 35.1 40.0 42.6 48.1 52.8 58.2 58.2 54.1 48.7 35.8 34.2 48.2
Year Lowest Occurred 1969 1989 1971 1972 1962 1971 1966 1969 1972 1961 1985 1983 1971
Mean Min. Temperature (F) 33.4 34.9 35.1 37.4 41.7 46.3 49.1 49.8 46.7 41.9 37.1 34.2 40.6
Highest Mean Min. Temperature (F) 38.2 39.4 39.2 41.0 44.6 50.8 51.6 52.2 50.2 47.2 40.9 38.9 41.9
Year Highest Occurred 1986 1963 1986 1990 1972 1969 1961 1990 1990 1988 1987 1979 1987
Lowest Mean Min. Temperature (F) 24.6 26.8 31.4 33.3 38.9 43.1 46.8 46.9 43.3 38.5 29.4 28.7 38.6
Year Lowest Occurred 1969 1989 1962 1982 1970 1962 1969 1969 1972 1961 1985 1983 1985
Mean Precipitation (in.) 16.64 14.79 13.18 8.34 5.70 3.19 2.58 2.51 4.95 11.51 16.98 18.77 119.14
Highest Precipitation (in.) 30.52 28.84 24.58 15.34 12.39 9.17 10.58 9.57 12.24 29.79 32.52 40.12 148.16
Year Highest Occurred 1961 1961 1974 1970 1984 1981 1983 1975 1969 1975 1983 1979 1975
Lowest Precipitation (in.) 1.43 4.95 3.62 3.11 0.90 0.17 0.36 0.14 0.14 1.66 5.02 4.66 71.07
Year Lowest Occurred 1985 1962 1965 1973 1972 1967 1975 1986 1989 1987 1976 1985 1985
Heating Degree Days (F) 787. 633. 654. 531. 394. 242. 145. 126. 205. 415. 630. 781. 5543.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 5. 12. 26. 13. 0. 0. 0. 56.

Western Regional Climate Center, wrcc@dri.edu