CLEARBROOK, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 42.5 47.4 53.1 59.6 65.7 70.0 75.2 75.9 70.8 59.5 48.4 42.5 59.2
Highest Mean Max. Temperature (F) 49.4 52.9 61.1 63.7 71.1 75.5 82.5 80.4 76.1 65.7 53.4 47.4 82.5
Year Highest Occurred 1986 1977 1992 1989 1995 1982 1985 1986 1995 1987 1995 1979 1985
Lowest Mean Max. Temperature (F) 34.7 40.0 47.2 53.3 61.1 64.1 70.5 69.5 64.9 55.9 36.9 35.5 34.7
Year Lowest Occurred 1979 1975 1976 1972 1996 1971 1993 1976 1978 1984 1985 1984 1979
Mean Temperature (F) 37.3 40.9 44.9 49.8 55.4 59.6 63.3 63.3 58.6 50.5 42.6 37.6 50.3
Highest Mean Temperature (F) 44.0 45.3 49.2 52.8 60.3 63.0 66.5 66.2 61.9 53.7 46.7 42.6 66.5
Year Highest Occurred 1994 1992 1992 1989 1993 1992 1990 1997 1990 1993 1987 1979 1990
Lowest Mean Temperature (F) 29.3 32.7 39.8 45.7 52.7 55.3 60.4 59.2 54.4 47.6 31.0 31.5 29.3
Year Lowest Occurred 1979 1989 1976 1975 1999 1971 1986 1973 1972 1972 1985 1984 1979
Mean Min. Temperature (F) 32.1 34.3 36.6 39.9 45.1 49.2 51.3 50.6 46.4 41.5 36.7 32.6 41.4
Highest Mean Min. Temperature (F) 38.7 38.4 39.8 43.3 49.7 52.1 55.0 53.9 50.1 46.2 40.6 38.1 55.0
Year Highest Occurred 1994 1987 1986 1993 1993 1993 1998 1999 1997 1988 1987 1973 1998
Lowest Mean Min. Temperature (F) 23.9 25.3 31.7 35.4 42.0 45.1 49.1 46.4 42.7 36.0 25.1 26.0 23.9
Year Lowest Occurred 1979 1989 1985 1975 1982 1976 1973 1973 1993 1987 1985 1985 1979
Mean Precipitation (in.) 5.23 4.20 4.04 3.66 3.31 2.80 1.83 1.65 2.58 4.36 6.36 5.75 45.77
Highest Precipitation (in.) 9.96 10.73 7.83 7.16 6.72 8.30 5.12 6.66 5.98 8.99 11.41 11.06 11.41
Year Highest Occurred 1971 1982 1972 1972 1984 1981 1983 1991 1971 1975 1995 1972 1995
Lowest Precipitation (in.) 1.18 0.33 0.93 1.60 0.76 0.82 0.07 0.02 0.19 0.53 2.19 0.76 0.02
Year Lowest Occurred 1985 1993 1992 1975 1995 1987 1985 1986 1989 1987 1979 1985 1986
Heating Degree Days (F) 858. 676. 624. 458. 300. 170. 79. 90. 202. 449. 673. 851. 5430.
Cooling Degree Days (F) 0. 0. 0. 0. 1. 9. 25. 35. 9. 0. 0. 0. 79.

Western Regional Climate Center, wrcc@dri.edu