ABERDEEN, WASHINGTON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 46.2 50.0 52.9 56.2 60.8 64.9 68.3 69.3 68.7 61.2 51.9 46.3 58.1
Highest Mean Max. Temperature (F) 52.1 57.2 58.5 61.0 64.9 70.3 73.0 73.3 74.8 67.2 55.8 49.9 59.9
Year Highest Occurred 1961 1963 1965 1989 1963 1961 1961 1961 1974 1987 1962 1979 1961
Lowest Mean Max. Temperature (F) 37.8 43.1 48.2 51.6 56.3 60.9 64.5 64.7 64.7 56.9 43.8 41.5 56.2
Year Lowest Occurred 1969 1989 1971 1972 1974 1971 1986 1973 1986 1975 1985 1990 1971
Mean Temperature (F) 40.5 43.1 45.0 48.1 52.8 57.2 60.3 61.2 59.2 52.6 45.6 40.9 50.5
Highest Mean Temperature (F) 45.5 49.2 49.1 51.8 55.4 60.3 63.4 63.6 63.1 55.9 48.9 45.0 52.1
Year Highest Occurred 1961 1963 1986 1989 1983 1961 1961 1961 1963 1988 1987 1980 1987
Lowest Mean Temperature (F) 33.3 36.0 40.8 43.8 49.5 53.9 58.3 57.3 55.7 49.1 37.8 36.0 48.7
Year Lowest Occurred 1969 1989 1971 1975 1974 1971 1986 1973 1972 1984 1985 1990 1985
Mean Min. Temperature (F) 34.8 36.1 37.1 40.0 44.7 49.5 52.3 53.0 49.7 44.0 39.2 35.4 43.0
Highest Mean Min. Temperature (F) 38.9 41.1 41.8 44.8 47.3 54.0 54.8 55.8 53.8 49.2 43.3 40.8 44.6
Year Highest Occurred 1986 1963 1986 1990 1987 1969 1990 1990 1990 1988 1987 1980 1990
Lowest Mean Min. Temperature (F) 28.7 28.8 32.6 35.6 41.7 46.7 50.3 49.9 46.2 40.3 31.8 30.3 40.4
Year Lowest Occurred 1969 1989 1985 1975 1964 1976 1971 1973 1972 1972 1985 1984 1985
Mean Precipitation (in.) 12.38 10.10 9.04 5.80 3.73 2.50 1.38 1.79 3.62 7.19 12.23 12.96 82.72
Highest Precipitation (in.) 19.99 20.60 15.19 12.23 7.77 5.94 5.07 5.15 11.96 17.84 24.02 20.77 105.03
Year Highest Occurred 1964 1961 1974 1981 1984 1968 1983 1975 1978 1975 1990 1966 1990
Lowest Precipitation (in.) 0.58 3.81 1.60 2.18 0.55 0.64 0.12 0.07 0.01 0.52 3.33 3.21 58.02
Year Lowest Occurred 1985 1973 1965 1977 1982 1987 1984 1986 1990 1987 1976 1985 1985
Heating Degree Days (F) 760. 613. 620. 507. 378. 234. 150. 126. 184. 384. 582. 747. 5285.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 0. 0. 8. 10. 0. 0. 0. 18.

Western Regional Climate Center, wrcc@dri.edu