ROCKSVILLE 5 N, OREGON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 37.2 44.3 52.6 61.7 70.6 79.3 88.4 87.0 76.7 64.2 48.5 38.5 62.4
Highest Mean Max. Temperature (F) 44.3 52.0 59.1 72.9 77.1 87.6 92.2 93.9 83.8 73.0 53.8 44.5 64.8
Year Highest Occurred 1967 1963 1978 1987 1966 1961 1985 1967 1990 1988 1976 1979 1988
Lowest Mean Max. Temperature (F) 27.0 32.9 47.3 51.3 63.8 73.1 83.6 79.7 67.7 57.5 38.9 25.4 58.9
Year Lowest Occurred 1979 1989 1964 1975 1977 1964 1983 1976 1985 1969 1985 1985 1985
Mean Temperature (F) 27.4 33.4 38.9 45.3 53.2 60.9 67.3 65.9 56.5 46.3 36.3 28.4 46.7
Highest Mean Temperature (F) 35.7 40.2 44.4 52.1 56.5 66.2 71.3 70.5 62.1 53.0 40.4 34.6 48.3
Year Highest Occurred 1967 1963 1986 1990 1987 1961 1985 1961 1967 1988 1966 1977 1967
Lowest Mean Temperature (F) 15.2 23.1 33.6 38.5 49.2 57.3 62.9 61.4 51.4 41.7 26.3 14.3 43.0
Year Lowest Occurred 1979 1989 1976 1975 1977 1984 1986 1976 1985 1969 1985 1985 1985
Mean Min. Temperature (F) 17.5 22.4 25.1 28.9 35.7 42.4 46.2 44.7 36.3 28.3 24.0 18.2 30.8
Highest Mean Min. Temperature (F) 27.0 28.6 31.5 35.0 38.8 47.3 52.0 50.4 42.1 34.3 29.3 25.5 32.8
Year Highest Occurred 1967 1983 1983 1990 1963 1988 1975 1983 1967 1975 1966 1977 1983
Lowest Mean Min. Temperature (F) 3.4 13.3 17.4 24.4 32.4 39.5 41.9 39.2 31.9 23.5 13.7 3.1 27.1
Year Lowest Occurred 1979 1989 1965 1970 1975 1978 1986 1969 1970 1978 1985 1985 1985
Mean Precipitation (in.) 1.01 0.85 1.22 1.21 1.36 1.19 0.47 0.60 0.64 0.87 1.16 1.10 11.68
Highest Precipitation (in.) 3.01 2.17 3.10 3.94 3.61 2.68 2.15 3.28 2.10 2.57 2.37 3.46 20.34
Year Highest Occurred 1969 1986 1989 1978 1980 1967 1985 1979 1982 1975 1984 1983 1983
Lowest Precipitation (in.) 0.18 0.00 0.00 0.06 0.12 0.10 0.00 0.00 0.00 0.00 0.22 0.10 5.88
Year Lowest Occurred 1985 1971 1965 1961 1976 1989 1988 1988 1990 1988 1969 1989 1966
Heating Degree Days (F) 1166. 885. 809. 591. 366. 154. 34. 67. 269. 580. 861. 1135. 6917.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 31. 105. 95. 14. 0. 0. 0. 245.

Western Regional Climate Center, wrcc@dri.edu