THE DALLES MUNI AP, WASHINGTON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 40.6 48.0 56.7 64.2 73.3 80.6 87.4 87.1 79.5 66.3 49.8 41.2 64.6
Highest Mean Max. Temperature (F) 49.7 55.4 62.5 72.8 78.9 86.8 96.8 96.1 86.3 75.2 55.4 46.3 68.2
Year Highest Occurred 1967 1967 1968 1977 1983 1977 1985 1967 1967 1988 1990 1974 1967
Lowest Mean Max. Temperature (F) 25.0 38.9 51.5 58.7 65.2 75.1 79.9 81.0 72.2 61.9 38.1 27.3 61.7
Year Lowest Occurred 1979 1989 1971 1975 1962 1971 1986 1968 1985 1984 1985 1985 1985
Mean Temperature (F) 34.8 40.2 46.4 52.7 60.7 67.8 73.6 73.3 65.4 54.3 42.8 35.6 54.0
Highest Mean Temperature (F) 43.0 45.4 52.1 58.3 65.1 73.1 81.6 80.3 71.8 61.1 46.9 40.3 57.2
Year Highest Occurred 1967 1968 1968 1977 1968 1977 1985 1967 1967 1988 1990 1975 1967
Lowest Mean Temperature (F) 19.0 30.4 42.2 47.6 56.0 63.8 68.7 69.1 60.2 50.0 31.5 24.3 51.7
Year Lowest Occurred 1979 1989 1962 1972 1962 1971 1986 1975 1985 1961 1985 1985 1985
Mean Min. Temperature (F) 29.0 32.4 36.1 41.2 48.0 54.8 59.8 59.5 51.4 42.2 35.8 29.9 43.3
Highest Mean Min. Temperature (F) 37.1 37.1 41.8 44.7 53.0 59.3 66.3 65.1 57.3 47.0 41.3 34.8 46.0
Year Highest Occurred 1981 1983 1983 1990 1968 1977 1985 1977 1967 1988 1983 1975 1967
Lowest Mean Min. Temperature (F) 12.9 21.8 31.7 36.1 44.3 51.9 56.9 56.2 47.3 37.9 24.9 19.8 40.9
Year Lowest Occurred 1979 1989 1965 1972 1964 1976 1963 1964 1972 1972 1985 1972 1972
Mean Precipitation (in.) 2.53 1.57 1.08 0.59 0.41 0.33 0.11 0.38 0.48 0.85 2.11 2.82 13.26
Highest Precipitation (in.) 7.19 4.22 3.05 1.89 1.79 1.39 0.60 1.44 1.68 2.56 5.48 8.96 22.46
Year Highest Occurred 1970 1983 1983 1990 1990 1981 1987 1983 1985 1962 1973 1964 1983
Lowest Precipitation (in.) 0.17 0.13 0.16 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.26 0.37 6.95
Year Lowest Occurred 1985 1967 1973 1977 1964 1978 1984 1988 1987 1988 1969 1976 1976
Heating Degree Days (F) 936. 694. 577. 369. 156. 46. 9. 12. 92. 332. 666. 911. 4800.
Cooling Degree Days (F) 0. 0. 0. 0. 23. 130. 276. 269. 104. 0. 0. 0. 802.

Western Regional Climate Center, wrcc@dri.edu