MIKKALO LARSON RANCH, OREGON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 39.8 46.8 53.9 60.6 69.5 78.5 86.1 85.4 76.0 64.0 48.5 40.5 62.5
Highest Mean Max. Temperature (F) 49.2 60.5 61.5 67.3 75.8 85.3 92.5 95.6 83.5 71.3 54.7 46.3 66.2
Year Highest Occurred 1983 1965 1965 1977 1972 1986 1985 1967 1967 1988 1990 1976 1967
Lowest Mean Max. Temperature (F) 23.1 35.2 49.0 54.8 63.4 72.1 80.4 78.2 68.8 59.0 33.9 28.0 59.5
Year Lowest Occurred 1979 1989 1962 1975 1962 1971 1963 1989 1977 1982 1985 1983 1985
Mean Temperature (F) 33.2 39.0 44.4 49.3 56.7 64.9 71.5 71.0 62.8 52.6 40.8 33.7 51.7
Highest Mean Temperature (F) 41.6 47.0 49.2 53.9 61.0 69.2 76.7 80.9 70.8 57.8 45.7 39.5 55.3
Year Highest Occurred 1967 1965 1986 1985 1979 1961 1985 1967 1967 1965 1965 1966 1967
Lowest Mean Temperature (F) 16.2 26.6 40.5 44.4 52.2 59.4 66.1 64.0 58.2 47.5 25.5 20.9 48.5
Year Lowest Occurred 1979 1989 1971 1972 1977 1971 1989 1989 1977 1990 1985 1985 1985
Mean Min. Temperature (F) 26.5 31.1 34.8 38.0 43.9 51.3 56.8 56.6 49.6 41.2 33.0 26.9 40.8
Highest Mean Min. Temperature (F) 34.2 35.8 39.6 42.3 48.3 55.9 61.3 66.1 58.0 46.0 37.1 33.1 44.3
Year Highest Occurred 1967 1961 1987 1985 1979 1967 1970 1967 1967 1965 1965 1974 1967
Lowest Mean Min. Temperature (F) 9.2 18.0 31.5 31.4 39.3 46.7 50.3 49.8 43.5 33.5 17.0 13.0 37.5
Year Lowest Occurred 1979 1989 1971 1972 1988 1971 1989 1989 1989 1990 1985 1985 1989
Mean Precipitation (in.) 1.35 1.02 0.95 0.91 0.83 0.64 0.25 0.48 0.48 0.67 1.58 1.56 10.72
Highest Precipitation (in.) 4.10 4.32 2.52 3.28 3.24 2.09 1.28 1.70 1.69 2.50 4.33 6.85 15.06
Year Highest Occurred 1970 1961 1989 1988 1962 1972 1966 1976 1982 1982 1973 1964 1983
Lowest Precipitation (in.) 0.06 0.00 0.10 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.29 0.33 6.35
Year Lowest Occurred 1984 1967 1968 1966 1964 1989 1988 1988 1990 1988 1987 1988 1967
Heating Degree Days (F) 986. 728. 639. 471. 267. 93. 20. 45. 140. 384. 726. 970. 5469.
Cooling Degree Days (F) 0. 0. 0. 0. 9. 90. 222. 231. 74. 0. 0. 0. 626.

Western Regional Climate Center, wrcc@dri.edu