CONCONULLY, WASHINGTON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 31.4 39.1 48.0 57.8 67.1 74.7 81.8 81.3 71.8 58.1 41.6 31.7 57.0
Highest Mean Max. Temperature (F) 39.9 48.2 54.5 65.0 73.7 82.1 90.4 89.6 79.3 63.5 46.4 39.2 59.7
Year Highest Occurred 1990 1988 1990 1962 1971 1969 1985 1981 1990 1988 1989 1962 1987
Lowest Mean Max. Temperature (F) 16.3 31.9 40.9 52.0 60.3 68.5 75.6 73.5 63.2 52.0 27.5 22.6 54.5
Year Lowest Occurred 1969 1975 1975 1967 1974 1981 1986 1975 1961 1967 1985 1983 1975
Mean Temperature (F) 22.4 29.4 37.0 45.8 54.3 61.5 67.4 67.0 58.0 46.5 33.6 23.8 45.6
Highest Mean Temperature (F) 31.2 37.0 41.6 51.1 58.6 67.1 74.6 72.7 64.7 52.1 37.6 31.5 48.3
Year Highest Occurred 1981 1963 1978 1987 1971 1969 1985 1986 1990 1988 1987 1962 1987
Lowest Mean Temperature (F) 7.6 20.9 30.2 40.7 49.2 56.1 62.9 61.8 50.8 43.0 18.0 14.0 43.3
Year Lowest Occurred 1969 1975 1971 1967 1974 1981 1983 1975 1961 1984 1985 1984 1985
Mean Min. Temperature (F) 13.3 19.6 26.0 33.8 41.4 48.3 53.0 52.6 44.2 34.8 25.6 16.0 34.1
Highest Mean Min. Temperature (F) 24.5 27.6 31.6 39.0 44.7 52.1 58.8 57.9 50.1 40.6 30.6 23.7 36.9
Year Highest Occurred 1981 1963 1983 1987 1987 1969 1985 1967 1990 1988 1983 1962 1987
Lowest Mean Min. Temperature (F) -1.2 8.8 18.4 28.6 35.0 43.6 49.3 46.9 37.7 28.5 8.4 4.1 31.5
Year Lowest Occurred 1969 1985 1971 1982 1964 1981 1983 1980 1972 1961 1985 1984 1985
Mean Precipitation (in.) 1.45 1.40 1.25 1.08 1.57 1.31 0.68 1.07 0.79 0.90 1.59 1.96 15.05
Highest Precipitation (in.) 3.08 4.08 3.85 3.09 5.51 3.94 1.75 3.50 3.22 2.91 7.16 5.31 28.72
Year Highest Occurred 1983 1969 1983 1963 1990 1982 1983 1966 1973 1981 1983 1987 1983
Lowest Precipitation (in.) 0.00 0.00 0.14 0.02 0.10 0.02 0.00 0.00 0.00 0.00 0.00 0.13 7.05
Year Lowest Occurred 1977 1988 1979 1966 1964 1974 1985 1969 1987 1987 1976 1989 1985
Heating Degree Days (F) 1321. 997. 868. 576. 335. 151. 53. 73. 246. 574. 942. 1277. 7413.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 46. 127. 135. 36. 0. 0. 0. 344.

Western Regional Climate Center, wrcc@dri.edu