SPRAGUE RIVER, OREGON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 39.2 44.8 49.7 57.8 67.1 76.5 85.5 84.4 76.5 64.8 47.7 39.1 61.1
Highest Mean Max. Temperature (F) 47.1 51.4 57.4 68.1 74.9 83.5 90.3 91.5 84.3 76.0 57.9 46.1 63.9
Year Highest Occurred 1986 1963 1986 1987 1973 1974 1988 1967 1974 1988 1976 1976 1987
Lowest Mean Max. Temperature (F) 33.8 37.9 43.2 45.3 58.0 69.7 78.4 75.5 66.6 55.2 38.3 32.3 58.3
Year Lowest Occurred 1982 1989 1964 1967 1977 1964 1963 1976 1986 1984 1985 1967 1982
Mean Temperature (F) 27.7 32.7 36.5 41.7 49.1 57.4 63.6 62.3 54.6 45.8 35.5 28.1 44.6
Highest Mean Temperature (F) 36.1 40.4 42.5 48.6 54.3 63.0 67.5 66.9 59.5 52.0 38.8 34.4 46.5
Year Highest Occurred 1986 1963 1986 1990 1973 1977 1985 1967 1967 1988 1976 1981 1986
Lowest Mean Temperature (F) 20.2 22.2 29.5 34.6 43.5 52.7 59.3 58.5 49.2 41.4 25.9 19.7 42.0
Year Lowest Occurred 1962 1989 1964 1967 1977 1966 1963 1976 1986 1984 1985 1967 1964
Mean Min. Temperature (F) 16.2 20.6 23.2 25.5 31.1 38.2 41.6 40.1 32.7 26.7 23.2 17.2 28.0
Highest Mean Min. Temperature (F) 25.7 29.3 29.8 33.0 36.2 43.7 45.4 45.9 39.0 34.0 28.5 26.5 30.9
Year Highest Occurred 1978 1963 1983 1965 1963 1969 1990 1961 1963 1979 1973 1981 1983
Lowest Mean Min. Temperature (F) 5.1 6.3 15.7 19.7 27.5 31.3 37.2 33.7 27.1 19.7 13.5 7.1 25.3
Year Lowest Occurred 1977 1964 1969 1975 1974 1975 1989 1988 1970 1974 1985 1967 1974
Mean Precipitation (in.) 2.27 1.52 1.69 0.92 1.00 0.84 0.33 0.74 0.63 1.35 2.33 2.58 16.20
Highest Precipitation (in.) 5.92 3.94 3.74 2.92 2.87 2.65 1.38 2.81 2.25 6.95 6.58 9.61 21.90
Year Highest Occurred 1970 1986 1974 1963 1990 1969 1987 1965 1977 1962 1973 1964 1981
Lowest Precipitation (in.) 0.16 0.05 0.07 0.06 0.18 0.00 0.00 0.00 0.00 0.00 0.43 0.01 9.98
Year Lowest Occurred 1985 1988 1965 1977 1983 1974 1989 1987 1987 1978 1976 1990 1985
Heating Degree Days (F) 1156. 904. 884. 699. 493. 244. 98. 127. 320. 595. 885. 1144. 7549.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 16. 55. 43. 8. 0. 0. 0. 122.

Western Regional Climate Center, wrcc@dri.edu