ADEL 1 S, OREGON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 42.1 46.8 51.7 59.8 69.5 78.6 88.0 86.6 77.3 66.4 49.9 42.4 63.3
Highest Mean Max. Temperature (F) 51.5 54.5 61.1 71.0 76.3 86.3 92.9 91.6 85.4 79.6 59.5 50.6 67.8
Year Highest Occurred 1986 1988 1978 1987 1973 1974 1988 1967 1987 1988 1976 1976 1988
Lowest Mean Max. Temperature (F) 36.5 38.1 43.5 47.1 60.4 72.0 83.0 78.1 67.7 57.3 40.9 34.7 59.6
Year Lowest Occurred 1979 1989 1971 1967 1977 1971 1963 1968 1985 1981 1985 1970 1982
Mean Temperature (F) 31.8 35.8 39.9 45.9 54.3 62.5 70.0 68.7 59.7 50.5 38.8 32.4 49.2
Highest Mean Temperature (F) 40.2 42.6 47.8 53.8 60.3 68.3 73.6 73.7 65.5 59.3 45.0 38.2 51.6
Year Highest Occurred 1986 1963 1990 1987 1973 1974 1985 1971 1987 1988 1976 1980 1988
Lowest Mean Temperature (F) 25.5 24.3 32.7 36.8 48.5 58.3 63.5 63.8 52.4 44.2 30.1 21.8 46.7
Year Lowest Occurred 1962 1989 1971 1967 1977 1964 1963 1968 1985 1984 1985 1990 1982
Mean Min. Temperature (F) 21.4 24.8 28.0 31.9 39.1 46.3 51.9 50.7 42.1 34.5 27.6 22.3 35.1
Highest Mean Min. Temperature (F) 29.9 31.8 37.9 37.4 44.3 51.0 55.8 57.1 47.6 41.2 32.1 28.7 37.4
Year Highest Occurred 1978 1980 1990 1990 1973 1986 1975 1971 1976 1979 1970 1981 1980
Lowest Mean Min. Temperature (F) 11.7 10.4 18.5 24.7 32.5 42.5 43.9 43.4 34.6 27.9 17.1 8.3 31.2
Year Lowest Occurred 1977 1989 1964 1964 1964 1963 1963 1963 1965 1966 1990 1990 1964
Mean Precipitation (in.) 1.14 1.10 1.08 0.95 0.93 0.90 0.38 0.55 0.62 0.76 1.32 1.26 10.99
Highest Precipitation (in.) 3.32 4.86 3.65 3.23 3.06 3.36 1.81 2.76 2.51 5.50 3.32 5.81 17.02
Year Highest Occurred 1969 1986 1983 1978 1971 1963 1987 1979 1986 1962 1981 1964 1983
Lowest Precipitation (in.) 0.00 0.00 0.00 0.06 0.14 0.00 0.00 0.00 0.00 0.00 0.14 0.00 6.09
Year Lowest Occurred 1989 1965 1965 1965 1975 1986 1989 1987 1987 1988 1976 1976 1989
Heating Degree Days (F) 1029. 818. 778. 573. 336. 137. 24. 43. 211. 455. 786. 1011. 6201.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 62. 179. 158. 52. 5. 0. 0. 456.

Western Regional Climate Center, wrcc@dri.edu