EUGENE WSO AIRPORT, OREGON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 46.4 51.4 55.9 60.5 67.1 74.2 81.7 81.8 76.2 64.6 52.4 46.2 63.2
Highest Mean Max. Temperature (F) 51.7 58.4 60.0 66.6 72.3 79.8 87.4 90.0 85.1 72.1 55.5 51.4 65.4
Year Highest Occurred 1975 1968 1965 1989 1969 1961 1970 1967 1974 1987 1974 1974 1974
Lowest Mean Max. Temperature (F) 38.2 44.2 51.3 55.9 61.7 68.0 74.3 77.0 70.1 59.4 44.5 39.7 61.2
Year Lowest Occurred 1979 1989 1971 1963 1962 1980 1983 1975 1986 1984 1985 1985 1971
Mean Temperature (F) 40.8 44.2 47.4 50.6 55.8 62.0 67.3 67.6 62.8 54.1 46.1 41.1 53.3
Highest Mean Temperature (F) 46.8 50.4 50.5 55.6 61.0 66.1 70.5 72.6 68.4 57.3 50.2 46.7 55.7
Year Highest Occurred 1975 1963 1986 1989 1969 1961 1985 1967 1974 1979 1965 1974 1974
Lowest Mean Temperature (F) 32.5 35.8 43.8 46.9 52.3 58.1 63.1 64.1 58.3 50.3 37.6 33.0 50.7
Year Lowest Occurred 1979 1989 1985 1967 1977 1980 1986 1980 1985 1971 1985 1985 1985
Mean Min. Temperature (F) 35.2 37.0 38.9 40.6 44.5 49.7 52.8 53.2 49.3 43.5 39.7 35.9 43.4
Highest Mean Min. Temperature (F) 41.9 43.4 43.2 45.1 49.7 56.4 56.3 56.3 54.0 49.3 45.2 41.9 45.9
Year Highest Occurred 1975 1963 1974 1974 1969 1969 1974 1990 1963 1975 1965 1974 1974
Lowest Mean Min. Temperature (F) 26.7 27.4 33.9 36.3 41.7 44.7 49.6 48.4 45.6 39.8 30.6 26.3 39.8
Year Lowest Occurred 1979 1989 1985 1982 1982 1976 1986 1980 1985 1971 1985 1985 1985
Mean Precipitation (in.) 7.91 5.64 5.52 3.11 2.16 1.43 0.51 1.08 1.67 3.41 8.32 8.61 49.37
Highest Precipitation (in.) 15.09 14.22 12.46 6.89 3.95 3.88 3.00 5.79 4.65 8.12 20.48 20.99 64.01
Year Highest Occurred 1990 1986 1974 1982 1963 1984 1987 1968 1986 1979 1973 1964 1983
Lowest Precipitation (in.) 0.31 0.86 0.79 0.49 0.26 0.07 0.00 0.00 0.00 0.11 1.33 1.24 33.83
Year Lowest Occurred 1985 1964 1965 1985 1982 1987 1973 1981 1975 1988 1976 1976 1985
Heating Degree Days (F) 750. 582. 546. 432. 285. 121. 38. 30. 116. 338. 567. 741. 4546.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 31. 109. 110. 50. 0. 0. 0. 300.

Western Regional Climate Center, wrcc@dri.edu