POMEROY, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 39.5 45.7 53.2 60.5 68.1 76.2 85.6 85.2 76.3 63.2 47.4 40.2 61.8
Highest Mean Max. Temperature (F) 48.9 53.3 61.5 68.1 75.5 84.1 93.7 92.6 83.2 70.3 56.1 48.4 93.7
Year Highest Occurred 1994 1991 1992 1977 1992 1986 1985 1971 1987 1988 1999 1979 1985
Lowest Mean Max. Temperature (F) 23.0 34.0 47.1 54.6 62.4 70.1 74.5 79.1 67.7 58.3 34.5 28.6 23.0
Year Lowest Occurred 1979 1989 1975 1975 1996 1991 1993 1993 1985 1995 1985 1983 1979
Mean Temperature (F) 31.3 36.3 42.3 48.6 55.4 62.3 69.2 68.7 60.7 49.8 38.8 32.5 49.7
Highest Mean Temperature (F) 40.5 42.7 47.3 54.7 63.0 68.5 75.0 73.8 65.5 53.8 45.4 38.8 75.0
Year Highest Occurred 1994 1991 1986 1990 1993 1986 1985 1971 1976 1988 1999 1980 1985
Lowest Mean Temperature (F) 14.2 23.6 37.2 42.9 51.0 58.0 64.2 62.9 55.3 45.4 25.2 21.4 14.2
Year Lowest Occurred 1979 1989 1975 1975 1974 1991 1993 1980 1985 1984 1985 1985 1979
Mean Min. Temperature (F) 23.1 26.9 31.3 36.7 42.6 48.4 52.8 52.1 45.0 36.3 30.2 24.8 37.5
Highest Mean Min. Temperature (F) 32.1 33.2 36.8 42.8 52.3 54.6 57.4 55.6 48.5 41.4 36.9 30.7 57.4
Year Highest Occurred 1994 1992 1986 1990 1993 1993 1990 1990 1997 1975 1995 1973 1990
Lowest Mean Min. Temperature (F) 5.3 13.1 25.9 31.2 37.4 45.0 50.0 45.7 40.2 31.8 15.9 12.7 5.3
Year Lowest Occurred 1979 1989 1988 1975 1999 1980 1981 1980 1999 1984 1985 1985 1979
Mean Precipitation (in.) 2.03 1.71 1.63 1.35 1.59 1.15 0.63 0.82 0.87 1.19 2.09 2.06 17.12
Highest Precipitation (in.) 4.45 3.80 3.35 3.54 4.27 2.98 2.20 2.18 2.78 3.56 4.54 5.58 5.58
Year Highest Occurred 1989 1986 1988 1993 2000 1971 1983 1991 2000 1994 1994 1996 1996
Lowest Precipitation (in.) 0.34 0.50 0.27 0.24 0.46 0.14 0.00 0.00 0.00 0.00 0.19 0.49 0.00
Year Lowest Occurred 1985 1977 1992 1977 1992 1973 1985 1988 1991 1987 1976 1992 1985
Heating Degree Days (F) 1044. 803. 706. 492. 310. 138. 33. 42. 177. 472. 791. 1009. 6017.
Cooling Degree Days (F) 0. 0. 0. 0. 11. 56. 163. 156. 46. 0. 0. 0. 432.

Western Regional Climate Center, wrcc@dri.edu