CONNELL 1 W, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 37.4 45.7 56.0 65.0 73.7 81.0 88.6 88.2 78.7 64.8 47.0 37.3 63.6
Highest Mean Max. Temperature (F) 45.4 52.5 61.8 72.5 78.8 86.7 95.9 93.7 84.5 71.3 53.0 44.7 95.9
Year Highest Occurred 1983 1991 1992 1977 1993 1974 1985 1981 1990 1988 1999 1974 1985
Lowest Mean Max. Temperature (F) 21.3 33.4 50.2 60.9 67.7 75.2 79.2 82.8 72.0 60.9 31.7 22.8 21.3
Year Lowest Occurred 1979 1989 1993 1975 1996 1991 1993 1976 1985 1995 1985 1985 1979
Mean Temperature (F) 31.3 37.5 44.6 51.4 59.0 65.6 72.0 71.3 62.7 51.2 39.5 31.6 51.5
Highest Mean Temperature (F) 39.0 42.8 48.4 55.8 63.8 70.1 76.7 76.0 66.8 56.9 44.7 38.1 76.7
Year Highest Occurred 1983 1983 1992 1987 1993 1992 1985 1971 1990 1988 1999 1974 1985
Lowest Mean Temperature (F) 14.5 25.2 40.4 47.1 54.6 61.3 65.7 66.5 58.3 48.4 25.0 18.6 14.5
Year Lowest Occurred 1979 1989 1971 1982 1996 1991 1993 1995 1985 1984 1985 1985 1979
Mean Min. Temperature (F) 25.1 29.2 33.2 37.7 44.2 50.2 55.3 54.4 46.6 37.6 31.9 25.8 39.3
Highest Mean Min. Temperature (F) 33.5 34.7 38.2 41.2 48.8 54.3 60.3 58.3 50.1 42.5 37.8 33.1 60.3
Year Highest Occurred 1981 1983 1983 1987 1993 1992 1998 1971 1995 1988 1983 1973 1998
Lowest Mean Min. Temperature (F) 7.8 16.9 29.3 32.8 40.0 47.0 52.1 49.5 42.5 34.4 18.3 14.3 7.8
Year Lowest Occurred 1979 1989 1976 1999 1999 1976 1993 1995 1999 1984 1985 1985 1979
Mean Precipitation (in.) 0.92 0.81 0.89 0.65 0.81 0.46 0.36 0.32 0.40 0.69 1.16 1.19 8.66
Highest Precipitation (in.) 1.98 1.51 2.32 1.45 2.07 1.22 1.37 1.68 1.48 1.81 3.14 3.21 3.21
Year Highest Occurred 1986 1986 1983 1993 1980 1995 1978 1977 1980 1982 1973 1973 1973
Lowest Precipitation (in.) 0.04 0.01 0.14 0.08 0.05 0.02 0.00 0.00 0.00 0.00 0.12 0.28 0.00
Year Lowest Occurred 1972 1988 1994 1977 1992 1986 1984 2000 1999 1987 1976 1976 1984
Heating Degree Days (F) 1046. 771. 633. 411. 205. 73. 13. 20. 133. 428. 767. 1038. 5538.
Cooling Degree Days (F) 0. 0. 0. 1. 18. 90. 230. 215. 62. 0. 0. 0. 616.

Western Regional Climate Center, wrcc@dri.edu