WATERVILLE, WASHINGTON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 32.0 38.2 47.5 57.7 67.1 75.7 83.6 82.9 72.9 58.7 41.4 31.5 57.4
Highest Mean Max. Temperature (F) 41.1 46.7 52.6 65.8 72.7 82.4 92.3 90.8 81.4 65.2 48.6 39.0 60.5
Year Highest Occurred 1967 1968 1981 1977 1969 1986 1985 1967 1967 1988 1976 1966 1967
Lowest Mean Max. Temperature (F) 21.1 27.0 40.8 51.8 60.3 69.7 77.9 76.0 65.3 53.1 27.5 21.1 54.5
Year Lowest Occurred 1969 1989 1971 1967 1962 1981 1983 1964 1985 1990 1985 1983 1985
Mean Temperature (F) 24.0 29.7 37.4 45.7 53.8 61.8 67.9 67.6 58.6 46.2 33.6 23.9 45.9
Highest Mean Temperature (F) 33.9 37.0 42.0 51.2 58.2 67.2 75.0 73.2 65.0 53.0 37.8 32.5 48.3
Year Highest Occurred 1967 1967 1968 1987 1969 1986 1985 1986 1967 1988 1966 1966 1967
Lowest Mean Temperature (F) 12.1 20.4 32.2 40.6 48.4 57.3 63.9 61.3 53.1 42.1 19.3 13.1 43.3
Year Lowest Occurred 1969 1989 1971 1967 1962 1976 1983 1964 1985 1961 1985 1983 1964
Mean Min. Temperature (F) 15.9 21.1 27.3 33.6 40.5 47.8 52.2 52.2 44.2 33.7 25.7 16.3 34.2
Highest Mean Min. Temperature (F) 27.8 27.5 32.3 38.7 43.7 53.1 57.7 57.3 49.2 40.7 31.8 25.9 37.2
Year Highest Occurred 1981 1967 1983 1990 1983 1969 1985 1986 1990 1988 1972 1966 1988
Lowest Mean Min. Temperature (F) 2.5 13.8 22.9 28.8 36.4 41.2 46.2 46.6 39.0 29.6 11.1 5.1 31.5
Year Lowest Occurred 1979 1989 1962 1982 1962 1962 1962 1964 1970 1961 1985 1983 1964
Mean Precipitation (in.) 1.45 0.94 0.79 0.80 0.83 0.72 0.36 0.72 0.55 0.61 1.57 1.82 11.16
Highest Precipitation (in.) 3.59 2.28 2.76 2.12 3.19 2.98 1.70 4.02 2.86 2.35 5.32 3.39 22.92
Year Highest Occurred 1970 1980 1983 1967 1962 1984 1966 1968 1986 1962 1983 1987 1983
Lowest Precipitation (in.) 0.10 0.00 0.03 0.00 0.05 0.03 0.00 0.00 0.00 0.00 0.13 0.15 6.47
Year Lowest Occurred 1977 1988 1981 1977 1970 1970 1988 1974 1990 1978 1969 1976 1988
Heating Degree Days (F) 1271. 988. 856. 579. 347. 146. 45. 64. 230. 583. 942. 1274. 7325.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 50. 135. 145. 38. 0. 0. 0. 368.

Western Regional Climate Center, wrcc@dri.edu