OTHELLO 6 ESE, WASHINGTON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 35.8 44.5 54.3 62.2 70.7 78.7 85.1 84.6 75.9 63.1 46.7 36.5 61.5
Highest Mean Max. Temperature (F) 46.2 51.0 58.9 69.2 77.1 87.9 92.1 94.4 83.7 70.7 53.0 43.0 64.2
Year Highest Occurred 1967 1967 1981 1987 1966 1961 1961 1961 1963 1988 1990 1966 1967
Lowest Mean Max. Temperature (F) 21.8 34.0 49.2 56.6 65.0 71.8 79.2 78.2 68.1 58.2 31.2 23.9 57.4
Year Lowest Occurred 1969 1969 1971 1967 1984 1971 1983 1968 1985 1968 1985 1985 1985
Mean Temperature (F) 29.0 36.0 42.9 49.3 56.9 64.5 69.6 69.2 61.0 49.9 38.5 30.0 49.7
Highest Mean Temperature (F) 38.8 41.9 46.3 55.3 61.4 72.1 76.1 77.8 68.1 56.6 44.7 36.0 52.1
Year Highest Occurred 1990 1961 1986 1987 1966 1961 1961 1961 1963 1988 1990 1973 1961
Lowest Mean Temperature (F) 13.5 25.9 38.8 44.3 52.4 59.5 65.5 64.5 55.8 46.3 24.0 19.4 46.5
Year Lowest Occurred 1979 1989 1971 1967 1984 1971 1986 1980 1970 1968 1985 1985 1985
Mean Min. Temperature (F) 22.1 27.4 31.5 36.3 43.1 50.3 54.0 53.7 46.1 36.6 30.1 23.4 37.9
Highest Mean Min. Temperature (F) 33.0 33.9 37.0 41.3 46.2 56.2 60.1 61.2 52.5 42.4 36.9 30.2 40.4
Year Highest Occurred 1990 1961 1986 1987 1987 1961 1961 1961 1963 1988 1989 1962 1961
Lowest Mean Min. Temperature (F) 3.8 17.5 27.5 31.5 39.7 45.5 50.5 47.5 41.6 32.8 16.7 14.0 35.5
Year Lowest Occurred 1979 1989 1965 1982 1984 1980 1981 1980 1970 1978 1985 1983 1979
Mean Precipitation (in.) 0.91 0.81 0.78 0.63 0.70 0.51 0.24 0.35 0.37 0.55 1.10 1.22 8.17
Highest Precipitation (in.) 2.53 2.82 2.46 1.86 2.48 1.44 0.98 1.69 1.22 1.83 3.61 2.86 13.11
Year Highest Occurred 1970 1961 1983 1963 1980 1971 1966 1978 1986 1982 1973 1973 1983
Lowest Precipitation (in.) 0.15 0.02 0.03 0.04 0.02 0.02 0.00 0.00 0.00 0.00 0.14 0.31 4.58
Year Lowest Occurred 1972 1988 1968 1977 1970 1986 1985 1986 1990 1987 1976 1976 1985
Heating Degree Days (F) 1116. 812. 685. 471. 255. 100. 30. 44. 168. 468. 795. 1085. 6029.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 85. 172. 174. 48. 0. 0. 0. 479.

Western Regional Climate Center, wrcc@dri.edu