EUGENE WSO AIRPORT, OREGON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 46.5 50.7 55.9 60.6 66.8 73.3 81.5 81.9 76.6 64.6 52.1 45.7 63.0
Highest Mean Max. Temperature (F) 50.9 56.7 62.0 66.6 74.7 78.8 87.3 86.2 84.2 72.1 56.9 50.4 87.3
Year Highest Occurred 1992 1991 1992 1989 1992 1992 1985 1986 1974 1987 1995 1974 1985
Lowest Mean Max. Temperature (F) 38.2 44.2 50.0 55.5 61.4 68.0 74.5 76.3 70.1 59.4 44.5 39.7 38.2
Year Lowest Occurred 1979 1989 1971 1975 1991 1991 1993 1975 1986 1984 1985 1985 1979
Mean Temperature (F) 39.8 42.8 46.3 49.8 54.8 60.2 66.2 66.4 61.7 52.6 44.7 39.5 52.1
Highest Mean Temperature (F) 45.0 48.4 50.1 55.2 59.7 64.7 69.9 69.3 66.6 56.8 50.3 44.9 69.9
Year Highest Occurred 1975 1991 1986 1989 1992 1992 1990 1986 1974 1988 1995 1974 1990
Lowest Mean Temperature (F) 31.2 35.5 41.3 44.7 50.9 55.8 62.1 62.2 57.4 47.9 37.2 32.6 31.2
Year Lowest Occurred 1979 1989 1971 1972 1977 1971 1993 1973 1972 1971 1985 1972 1979
Mean Min. Temperature (F) 33.0 34.9 36.7 38.9 42.7 47.0 50.8 50.8 46.7 40.5 37.2 33.3 41.0
Highest Mean Min. Temperature (F) 39.5 40.1 40.8 43.8 46.8 50.7 55.0 55.3 51.6 45.6 43.6 39.5 55.3
Year Highest Occurred 1975 1991 1993 1989 1993 1990 1995 1990 1995 1988 1995 1974 1990
Lowest Mean Min. Temperature (F) 24.3 26.8 31.3 33.7 39.1 42.3 47.3 45.8 42.4 35.8 28.6 24.7 24.3
Year Lowest Occurred 1979 1989 1985 1982 1982 1976 1977 1980 1972 1971 1993 1972 1979
Mean Precipitation (in.) 7.65 6.35 5.80 3.66 2.66 1.53 0.64 0.99 1.54 3.35 8.44 8.29 50.90
Highest Precipitation (in.) 15.36 16.89 12.46 7.85 6.92 3.88 3.00 3.46 4.65 8.12 20.48 17.63 20.48
Year Highest Occurred 1995 1996 1974 1993 1993 1984 1987 1979 1986 1979 1973 1981 1973
Lowest Precipitation (in.) 0.31 1.59 1.68 0.49 0.14 0.07 0.00 0.00 0.00 0.11 1.33 1.24 0.00
Year Lowest Occurred 1985 1988 1978 1985 1992 1987 1998 2000 1999 1988 1976 1976 1998
Heating Degree Days (F) 769. 615. 564. 443. 308. 152. 45. 31. 115. 370. 594. 780. 4786.
Cooling Degree Days (F) 0. 0. 0. 0. 5. 21. 95. 88. 32. 1. 0. 0. 242.

Western Regional Climate Center, wrcc@dri.edu