EPHRATA 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) 33.4 41.9 53.1 62.8 72.6 81.2 88.4 87.5 77.7 63.1 45.0 33.8 61.7
Highest Mean Max. Temperature (F) 43.7 50.2 58.2 69.4 78.6 87.1 95.0 95.7 85.9 69.8 51.7 40.0 65.3
Year Highest Occurred 1990 1967 1981 1977 1969 1970 1985 1967 1990 1988 1987 1974 1987
Lowest Mean Max. Temperature (F) 20.5 28.2 46.9 57.1 66.2 73.9 81.3 81.5 69.6 57.8 30.7 23.3 57.3
Year Lowest Occurred 1969 1985 1971 1967 1984 1980 1983 1964 1985 1984 1985 1984 1985
Mean Temperature (F) 27.1 34.3 43.0 51.0 60.1 68.5 74.9 74.0 64.6 51.6 37.8 28.0 51.2
Highest Mean Temperature (F) 37.9 40.1 46.8 56.1 65.6 73.5 81.3 79.9 70.9 58.1 42.6 34.9 53.8
Year Highest Occurred 1981 1967 1981 1977 1969 1969 1975 1967 1990 1988 1987 1966 1987
Lowest Mean Temperature (F) 14.2 18.1 37.8 45.4 53.8 63.1 69.1 68.9 58.2 46.3 23.4 16.1 46.6
Year Lowest Occurred 1979 1985 1971 1982 1984 1981 1983 1964 1985 1984 1985 1984 1985
Mean Min. Temperature (F) 20.8 26.7 32.7 39.1 47.6 55.7 61.4 60.5 51.4 40.0 30.6 22.1 40.7
Highest Mean Min. Temperature (F) 33.5 32.1 36.3 43.5 52.5 60.7 67.7 65.7 55.9 46.3 36.3 30.1 43.1
Year Highest Occurred 1981 1961 1987 1987 1969 1969 1975 1961 1990 1988 1972 1966 1973
Lowest Mean Min. Temperature (F) 6.8 7.9 28.6 31.9 41.4 50.7 56.6 56.1 46.7 34.8 16.1 8.8 35.9
Year Lowest Occurred 1979 1985 1985 1982 1984 1981 1986 1985 1985 1984 1985 1984 1985
Mean Precipitation (in.) 0.80 0.70 0.66 0.46 0.51 0.45 0.33 0.27 0.36 0.44 1.03 1.22 7.23
Highest Precipitation (in.) 2.44 1.76 1.80 1.43 1.83 1.90 1.28 1.20 1.68 1.60 3.63 3.10 12.23
Year Highest Occurred 1970 1983 1961 1967 1972 1984 1987 1990 1986 1973 1983 1987 1983
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.07 3.00
Year Lowest Occurred 1977 1988 1973 1985 1986 1989 1988 1988 1990 1987 1976 1976 1976
Heating Degree Days (F) 1175. 860. 682. 420. 180. 51. 10. 16. 124. 415. 816. 1147. 5896.
Cooling Degree Days (F) 0. 0. 0. 0. 28. 156. 317. 295. 112. 0. 0. 0. 908.

Western Regional Climate Center, wrcc@dri.edu