WATERVILLE, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 32.0 37.2 47.5 58.3 67.4 74.9 83.2 83.3 73.5 58.3 40.2 31.1 57.2
Highest Mean Max. Temperature (F) 42.7 45.8 56.1 64.9 76.1 84.4 92.3 89.5 81.5 65.2 48.7 37.8 92.3
Year Highest Occurred 1994 1991 1994 1977 1992 1992 1985 1971 1994 1988 1976 1979 1985
Lowest Mean Max. Temperature (F) 22.2 27.0 40.2 51.1 61.5 66.7 72.4 76.4 65.3 52.5 27.5 21.1 21.1
Year Lowest Occurred 1979 1989 1997 1997 1984 1991 1993 1976 1985 1997 1985 1983 1983
Mean Temperature (F) 24.6 29.6 38.0 46.7 55.0 62.1 68.8 68.8 59.7 46.5 33.0 24.3 46.4
Highest Mean Temperature (F) 36.1 36.6 44.8 53.8 60.9 70.3 75.0 73.5 67.1 53.0 37.3 32.7 75.0
Year Highest Occurred 1994 1991 1994 1994 1992 1992 1985 1971 1994 1988 1995 1991 1985
Lowest Mean Temperature (F) 12.5 20.4 32.2 40.4 49.9 56.2 62.6 63.5 53.1 42.4 19.3 13.1 12.5
Year Lowest Occurred 1979 1989 1997 1997 1984 1991 1993 1995 1985 1984 1985 1983 1979
Mean Min. Temperature (F) 17.1 22.0 28.4 35.1 42.6 49.2 54.3 54.3 45.9 34.7 25.8 17.5 35.6
Highest Mean Min. Temperature (F) 29.5 27.9 33.5 42.7 49.2 56.2 60.9 58.0 52.6 41.4 32.3 27.9 60.9
Year Highest Occurred 1994 1971 1994 1994 1993 1992 1994 1977 1994 1993 1972 1991 1994
Lowest Mean Min. Temperature (F) 2.8 13.8 23.8 28.8 38.2 45.5 49.8 50.0 40.9 31.0 11.1 5.1 2.8
Year Lowest Occurred 1979 1989 1976 1982 1984 1996 1983 1995 1985 1984 1985 1983 1979
Mean Precipitation (in.) 1.48 1.08 0.88 0.70 0.91 0.89 0.45 0.56 0.55 0.64 1.57 1.77 11.48
Highest Precipitation (in.) 4.07 2.28 2.76 2.07 2.78 2.98 1.73 3.22 2.86 1.93 5.32 4.96 5.32
Year Highest Occurred 1995 1980 1983 1984 1990 1984 1992 1983 1986 1997 1983 1996 1983
Lowest Precipitation (in.) 0.10 0.00 0.03 0.00 0.06 0.03 0.00 0.00 0.00 0.00 0.16 0.15 0.00
Year Lowest Occurred 1977 1988 1981 2000 1992 1999 1994 2000 1999 1978 1993 1976 1988
Heating Degree Days (F) 1253. 992. 839. 549. 323. 152. 49. 43. 220. 574. 961. 1262. 7217.
Cooling Degree Days (F) 0. 0. 0. 0. 12. 64. 165. 162. 60. 1. 0. 0. 464.

Western Regional Climate Center, wrcc@dri.edu