MILTON, OREGON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 41.3 47.9 56.1 63.3 71.7 80.3 88.2 87.0 77.1 65.0 50.6 42.1 64.2
Highest Mean Max. Temperature (F) 51.6 55.0 60.3 69.1 77.5 87.6 94.9 95.9 85.2 71.8 57.1 48.8 67.7
Year Highest Occurred 1967 1961 1968 1990 1966 1961 1985 1967 1990 1988 1990 1979 1967
Lowest Mean Max. Temperature (F) 23.2 34.6 51.4 57.0 65.5 74.1 82.5 80.6 70.4 60.9 34.8 26.4 60.2
Year Lowest Occurred 1979 1989 1975 1975 1962 1971 1986 1976 1985 1969 1985 1985 1985
Mean Temperature (F) 34.4 40.1 46.7 52.6 59.8 67.5 73.7 72.5 63.6 53.2 42.5 35.1 53.5
Highest Mean Temperature (F) 44.6 47.3 50.2 57.6 63.2 72.8 80.1 77.9 71.2 59.3 48.2 42.2 55.9
Year Highest Occurred 1967 1961 1986 1990 1987 1986 1985 1967 1990 1988 1990 1966 1967
Lowest Mean Temperature (F) 15.8 27.2 43.1 47.4 55.7 62.8 69.8 67.6 57.8 49.3 28.4 21.9 50.3
Year Lowest Occurred 1979 1989 1975 1975 1962 1971 1986 1980 1971 1969 1985 1985 1985
Mean Min. Temperature (F) 27.5 32.2 37.2 41.8 47.8 54.5 59.2 58.0 50.1 41.3 34.4 28.2 42.7
Highest Mean Min. Temperature (F) 37.6 39.5 41.9 46.0 51.2 59.5 65.2 63.7 57.1 46.7 39.4 35.6 44.5
Year Highest Occurred 1967 1961 1986 1990 1987 1986 1985 1977 1990 1988 1988 1973 1990
Lowest Mean Min. Temperature (F) 8.4 19.8 31.2 37.8 45.9 51.4 56.1 53.6 42.5 37.4 22.0 17.4 40.3
Year Lowest Occurred 1979 1989 1965 1975 1984 1980 1969 1980 1971 1971 1985 1985 1985
Mean Precipitation (in.) 1.71 1.17 1.52 1.20 1.28 0.94 0.47 0.65 0.76 1.08 1.84 1.71 14.33
Highest Precipitation (in.) 4.87 3.06 3.59 3.10 3.48 2.61 1.83 2.80 2.50 2.72 3.92 3.81 20.85
Year Highest Occurred 1970 1986 1989 1988 1990 1984 1964 1977 1986 1962 1973 1973 1983
Lowest Precipitation (in.) 0.19 0.02 0.17 0.10 0.12 0.14 0.00 0.00 0.00 0.00 0.29 0.33 8.92
Year Lowest Occurred 1985 1964 1965 1966 1964 1973 1962 1988 1990 1987 1976 1970 1967
Heating Degree Days (F) 949. 697. 567. 372. 172. 51. 5. 16. 128. 366. 675. 927. 4925.
Cooling Degree Days (F) 0. 0. 0. 0. 10. 126. 275. 248. 86. 0. 0. 0. 745.
Western Regional Climate Center, wrcc@dri.edu