SMYRNA, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 39.7 47.0 58.2 67.1 75.8 83.4 91.0 90.7 80.9 66.9 49.4 39.0 65.8
Highest Mean Max. Temperature (F) 48.2 54.2 63.8 73.6 80.9 89.5 99.5 97.6 88.1 72.7 57.1 46.2 99.5
Year Highest Occurred 1990 1991 1992 1977 1993 1992 1985 1971 1990 1988 1990 1991 1985
Lowest Mean Max. Temperature (F) 26.6 36.3 52.3 61.5 70.7 77.7 81.9 84.9 72.8 63.5 37.2 26.2 26.2
Year Lowest Occurred 1979 1989 1993 1975 1996 1991 1993 1995 1985 1996 1985 1985 1985
Mean Temperature (F) 31.9 37.3 45.3 52.7 60.7 68.1 74.3 73.5 63.9 51.6 39.8 31.5 52.6
Highest Mean Temperature (F) 40.5 42.8 49.4 56.8 65.2 73.7 80.8 78.8 69.6 56.8 45.6 38.3 80.8
Year Highest Occurred 1990 1991 1992 1994 1993 1992 1998 1971 1998 1988 1999 1991 1998
Lowest Mean Temperature (F) 16.4 26.9 40.6 47.6 56.0 63.8 69.0 69.0 58.7 48.7 26.9 20.1 16.4
Year Lowest Occurred 1979 1989 1971 1975 1984 1971 1993 1995 1985 1984 1985 1985 1979
Mean Min. Temperature (F) 24.1 27.5 32.4 38.3 45.6 52.7 57.6 56.3 46.8 36.3 30.1 23.9 39.3
Highest Mean Min. Temperature (F) 34.4 32.1 36.9 44.0 49.4 57.9 64.3 60.0 51.5 40.8 36.5 31.5 64.3
Year Highest Occurred 1981 1999 1983 1994 1993 1992 1998 1971 1998 1988 1999 1999 1998
Lowest Mean Min. Temperature (F) 6.2 17.2 28.5 32.9 41.2 48.8 54.1 51.5 43.4 31.8 16.5 14.0 6.2
Year Lowest Occurred 1979 1985 1971 1982 1984 1971 1980 1980 1983 1978 1985 1985 1979
Mean Precipitation (in.) 0.99 0.79 0.72 0.45 0.56 0.48 0.37 0.33 0.40 0.52 1.15 1.28 8.04
Highest Precipitation (in.) 2.66 2.20 2.43 1.56 1.88 2.06 2.51 1.39 1.40 1.71 4.08 3.48 4.08
Year Highest Occurred 1995 1980 1983 1995 1980 1984 1993 1976 1971 1996 1973 1996 1973
Lowest Precipitation (in.) 0.06 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00
Year Lowest Occurred 1977 1988 1973 1985 1992 1996 1994 1996 1999 1987 1990 1976 1988
Heating Degree Days (F) 1025. 777. 610. 371. 162. 39. 7. 9. 114. 416. 758. 1040. 5328.
Cooling Degree Days (F) 0. 0. 0. 2. 27. 131. 295. 274. 79. 0. 0. 0. 808.

Western Regional Climate Center, wrcc@dri.edu