SENECA, OREGON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 33.3 38.7 44.2 52.5 61.1 70.6 80.2 80.0 70.4 59.5 43.6 34.5 55.7
Highest Mean Max. Temperature (F) 40.5 48.8 53.1 62.7 67.4 80.2 85.7 88.4 78.8 71.4 52.4 42.7 57.7
Year Highest Occurred 1981 1963 1978 1987 1973 1961 1985 1961 1990 1988 1976 1976 1961
Lowest Mean Max. Temperature (F) 23.2 30.6 39.5 42.3 55.7 63.4 73.6 71.9 61.0 50.3 32.5 23.3 51.8
Year Lowest Occurred 1979 1989 1976 1975 1977 1980 1983 1968 1985 1984 1985 1985 1984
Mean Temperature (F) 20.9 26.2 32.0 38.7 45.9 53.5 59.0 57.9 49.0 40.4 31.5 23.1 39.8
Highest Mean Temperature (F) 29.4 37.7 38.9 45.1 49.4 57.9 63.3 63.2 55.6 47.6 35.6 29.2 41.5
Year Highest Occurred 1981 1963 1978 1990 1988 1974 1975 1961 1963 1988 1976 1973 1988
Lowest Mean Temperature (F) 7.6 15.1 24.2 31.5 42.2 50.0 54.1 53.3 43.2 35.3 20.2 10.8 35.6
Year Lowest Occurred 1979 1989 1985 1975 1965 1984 1986 1980 1971 1970 1985 1985 1985
Mean Min. Temperature (F) 8.5 13.5 19.6 24.9 30.7 36.4 37.7 35.6 27.7 21.2 19.3 11.7 23.9
Highest Mean Min. Temperature (F) 19.1 26.5 28.0 29.8 37.8 43.1 44.3 40.3 34.5 30.8 25.4 20.2 26.5
Year Highest Occurred 1990 1963 1983 1989 1988 1988 1975 1983 1963 1979 1983 1973 1983
Lowest Mean Min. Temperature (F) -8.1 -0.4 8.1 20.1 25.1 31.3 31.7 30.5 20.8 12.9 7.9 -1.8 19.2
Year Lowest Occurred 1979 1989 1969 1970 1964 1962 1962 1980 1971 1970 1985 1985 1985
Mean Precipitation (in.) 1.36 1.02 1.18 0.99 1.34 1.11 0.58 0.87 0.66 0.91 1.49 1.64 13.15
Highest Precipitation (in.) 5.03 3.25 3.56 2.50 4.01 4.14 1.56 3.70 2.31 3.59 3.20 4.64 22.89
Year Highest Occurred 1970 1986 1983 1963 1989 1964 1975 1965 1982 1962 1966 1983 1983
Lowest Precipitation (in.) 0.16 0.06 0.04 0.14 0.04 0.02 0.00 0.00 0.00 0.00 0.17 0.00 8.68
Year Lowest Occurred 1985 1971 1979 1970 1975 1973 1988 1980 1979 1988 1976 1989 1967
Heating Degree Days (F) 1367. 1086. 1023. 789. 592. 345. 200. 232. 480. 763. 1005. 1299. 9181.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 0. 14. 12. 0. 0. 0. 0. 26.

Western Regional Climate Center, wrcc@dri.edu