EPHRATA MUNI AP, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 34.3 42.1 53.6 63.6 72.8 80.5 88.2 87.6 78.1 63.3 45.0 34.4 62.0
Highest Mean Max. Temperature (F) 43.7 51.3 60.3 69.4 77.9 86.5 95.0 93.8 85.9 69.8 51.7 42.5 95.0
Year Highest Occurred 1990 1991 1992 1977 1992 1987 1985 1971 1990 1988 1987 1999 1985
Lowest Mean Max. Temperature (F) 21.5 28.2 46.9 58.5 66.2 73.9 78.5 81.7 69.6 57.8 30.7 23.3 21.5
Year Lowest Occurred 1979 1985 1971 1993 1984 1980 1993 1976 1985 1984 1985 1984 1979
Mean Temperature (F) 28.0 34.6 43.4 51.6 60.4 67.7 74.7 74.0 64.7 51.7 37.7 28.5 51.4
Highest Mean Temperature (F) 37.9 41.4 48.9 56.1 64.0 72.6 81.3 79.2 70.9 58.1 44.1 36.4 81.3
Year Highest Occurred 1981 1991 1992 1977 1987 1992 1975 1971 1990 1988 1999 1999 1975
Lowest Mean Temperature (F) 14.2 22.7 37.8 45.4 53.8 63.1 66.5 68.5 58.2 46.3 23.4 16.1 14.2
Year Lowest Occurred 1979 1985 1971 1982 1984 1980 1993 1995 1985 1984 1985 1984 1979
Mean Min. Temperature (F) 21.7 27.1 33.2 39.6 47.9 54.9 61.2 60.3 51.2 40.1 30.3 22.5 40.8
Highest Mean Min. Temperature (F) 33.5 33.6 37.5 44.2 51.4 59.9 67.7 65.5 55.9 46.3 36.6 30.3 67.7
Year Highest Occurred 1981 1998 1992 1994 1997 1977 1975 1977 1990 1988 1999 1999 1975
Lowest Mean Min. Temperature (F) 6.8 17.2 28.6 31.9 41.4 50.7 54.5 54.4 46.7 34.8 16.1 8.8 6.8
Year Lowest Occurred 1979 1985 1985 1982 1984 1981 1993 1995 1985 1984 1985 1984 1979
Mean Precipitation (in.) 0.83 0.78 0.75 0.43 0.64 0.51 0.44 0.25 0.37 0.47 1.03 1.19 7.69
Highest Precipitation (in.) 2.45 1.76 1.78 1.08 1.83 1.90 1.93 1.21 1.68 1.60 3.63 3.12 3.63
Year Highest Occurred 1995 1983 1983 1993 1972 1984 1998 1999 1986 1973 1983 1992 1983
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.00
Year Lowest Occurred 1977 1988 1973 1985 1992 1989 1988 2000 1999 1987 1976 1976 1977
Heating Degree Days (F) 1148. 850. 668. 405. 182. 60. 17. 13. 123. 416. 821. 1133. 5836.
Cooling Degree Days (F) 0. 0. 0. 3. 37. 141. 316. 289. 112. 2. 0. 0. 900.

Western Regional Climate Center, wrcc@dri.edu