SAPPHO 8 E, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 43.9 48.1 52.1 56.9 62.6 66.9 72.7 73.8 70.2 59.5 48.2 43.8 58.2
Highest Mean Max. Temperature (F) 48.5 53.8 59.9 60.9 69.2 74.5 80.2 80.8 76.8 67.0 53.5 49.5 80.8
Year Highest Occurred 1981 1991 1992 1989 1972 1982 1985 1986 1974 1987 1976 1976 1986
Lowest Mean Max. Temperature (F) 37.8 41.4 45.8 50.5 55.4 61.1 66.4 66.5 63.2 55.5 39.5 38.4 37.8
Year Lowest Occurred 1972 1989 1989 1972 1974 1971 1993 1975 1978 1984 1985 1983 1972
Mean Temperature (F) 38.8 41.4 43.8 47.4 52.6 56.8 61.2 61.8 58.7 50.8 42.7 38.9 49.6
Highest Mean Temperature (F) 43.4 46.9 49.6 50.5 57.1 62.1 64.8 67.0 62.6 55.1 46.7 44.2 67.0
Year Highest Occurred 1994 1991 1992 1992 1993 1992 1985 1986 1995 1993 1995 1976 1986
Lowest Mean Temperature (F) 32.9 33.3 39.0 42.2 47.3 52.6 58.5 57.3 54.8 47.8 34.2 33.3 32.9
Year Lowest Occurred 1972 1989 1989 1972 1974 1971 1989 1973 1971 1983 1985 1983 1972
Mean Min. Temperature (F) 33.6 34.7 35.4 37.9 42.6 46.6 49.6 49.8 47.1 42.0 37.2 34.0 40.9
Highest Mean Min. Temperature (F) 38.5 40.0 39.4 41.7 48.4 50.4 53.8 53.2 50.6 45.8 41.5 38.8 53.8
Year Highest Occurred 1994 1991 1986 1996 1993 1992 1998 1986 1997 1993 1999 1976 1998
Lowest Mean Min. Temperature (F) 27.8 25.2 30.5 33.9 39.2 43.6 47.5 45.5 43.5 38.4 28.9 28.2 25.2
Year Lowest Occurred 1993 1989 1971 1972 1974 1979 1971 1980 1971 1983 1985 1983 1989
Mean Precipitation (in.) 13.32 12.47 10.41 6.89 4.52 2.97 1.99 2.33 3.52 9.34 15.61 14.29 97.66
Highest Precipitation (in.) 25.37 25.05 24.35 13.29 9.91 8.66 7.05 8.55 10.11 22.78 33.44 30.17 33.44
Year Highest Occurred 1992 1999 1997 1992 1984 1981 1983 1975 1978 1984 1990 1979 1990
Lowest Precipitation (in.) 0.86 1.14 1.81 2.99 1.48 0.64 0.21 0.03 0.13 1.00 2.48 3.53 0.03
Year Lowest Occurred 1985 1993 1992 1998 1972 1975 1985 1986 1991 1974 1993 1985 1986
Heating Degree Days (F) 814. 662. 658. 528. 386. 253. 136. 135. 207. 442. 670. 810. 5701.
Cooling Degree Days (F) 0. 0. 0. 0. 1. 6. 16. 36. 17. 0. 0. 0. 76.

Western Regional Climate Center, wrcc@dri.edu