FORKS 1 E, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 44.4 48.7 52.0 57.2 62.5 66.1 70.4 71.9 68.9 59.0 48.8 44.2 57.8
Highest Mean Max. Temperature (F) 50.0 54.4 59.3 61.8 68.7 71.7 78.6 76.7 75.6 65.8 53.9 47.5 78.6
Year Highest Occurred 1981 1991 1992 1989 1992 1978 1985 1986 1974 1987 1976 1979 1985
Lowest Mean Max. Temperature (F) 40.1 42.2 46.3 50.0 57.3 60.1 65.1 65.7 62.6 53.9 40.6 38.5 38.5
Year Lowest Occurred 1980 1989 1971 1972 1974 1971 1993 1975 1972 1990 1985 1983 1983
Mean Temperature (F) 39.1 41.8 43.8 47.6 52.6 56.4 60.1 61.1 57.9 50.4 42.9 39.2 49.4
Highest Mean Temperature (F) 43.5 47.0 49.3 50.8 56.5 60.3 63.6 63.4 61.3 54.0 47.0 43.1 63.6
Year Highest Occurred 1981 1991 1992 1989 1992 1992 1985 1986 1974 1987 1995 1979 1985
Lowest Mean Temperature (F) 34.3 34.4 39.5 42.1 48.8 52.1 57.2 57.3 52.8 47.7 34.8 33.5 33.5
Year Lowest Occurred 1979 1989 1971 1972 1974 1971 1986 1973 1972 1990 1985 1983 1983
Mean Min. Temperature (F) 33.7 34.8 35.5 37.9 42.7 46.7 49.7 50.2 46.9 41.7 37.0 34.1 40.9
Highest Mean Min. Temperature (F) 38.1 39.6 39.2 41.5 46.3 49.6 53.2 52.4 50.8 46.8 41.5 38.7 53.2
Year Highest Occurred 1994 1991 1992 1996 1993 1992 1998 1997 1997 1988 1995 1979 1998
Lowest Mean Min. Temperature (F) 27.7 26.6 32.0 33.1 39.2 43.3 47.2 46.8 43.0 38.2 29.0 28.5 26.6
Year Lowest Occurred 1979 1989 1985 1982 1999 1976 1977 1985 1972 1972 1985 1983 1989
Mean Precipitation (in.) 16.64 15.48 13.52 8.96 6.15 3.82 2.79 2.76 4.36 11.07 17.72 18.46 121.73
Highest Precipitation (in.) 29.52 35.30 29.42 17.60 12.39 9.51 10.58 14.43 13.06 29.79 32.52 40.12 40.12
Year Highest Occurred 1992 1999 1997 1996 1984 1997 1983 1991 1997 1975 1983 1979 1979
Lowest Precipitation (in.) 1.43 0.82 2.29 3.11 0.90 1.56 0.36 0.14 0.07 1.66 5.02 4.66 0.07
Year Lowest Occurred 1985 1993 1992 1973 1972 1972 1975 1986 1991 1987 1976 1985 1991
Heating Degree Days (F) 804. 652. 642. 525. 385. 260. 163. 134. 222. 454. 663. 803. 5707.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 2. 9. 12. 9. 0. 0. 0. 32.

Western Regional Climate Center, wrcc@dri.edu