SATUS PASS 2 SSW, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 36.4 42.0 50.4 58.6 67.7 74.6 82.6 82.4 73.8 60.9 43.5 35.4 59.0
Highest Mean Max. Temperature (F) 44.5 49.8 56.6 66.8 74.4 81.4 91.0 88.0 82.5 69.2 49.6 42.2 91.0
Year Highest Occurred 1994 1991 1992 1977 1992 1987 1985 1998 1990 1988 1990 1980 1985
Lowest Mean Max. Temperature (F) 26.0 31.5 44.5 53.6 61.3 68.3 72.9 76.1 65.1 55.0 31.6 26.4 26.0
Year Lowest Occurred 1979 1989 1971 1972 1996 1991 1993 1975 1986 1975 1985 1985 1979
Mean Temperature (F) 29.3 33.5 39.2 44.7 51.5 57.6 64.0 63.9 57.2 47.0 35.7 28.7 46.0
Highest Mean Temperature (F) 36.9 39.9 43.1 48.8 55.8 62.8 69.7 68.6 64.5 55.1 40.9 34.6 69.7
Year Highest Occurred 1994 1991 1992 2000 1993 1992 1998 1991 1990 1988 1999 1980 1998
Lowest Mean Temperature (F) 15.8 22.5 34.8 39.7 47.6 53.0 57.4 58.9 48.5 41.5 23.4 18.0 15.8
Year Lowest Occurred 1979 1989 1976 1975 1977 1991 1993 1975 1985 1984 1985 1985 1979
Mean Min. Temperature (F) 22.1 25.0 27.9 30.8 35.3 40.6 45.3 45.4 40.6 33.0 27.8 21.9 33.0
Highest Mean Min. Temperature (F) 29.4 31.1 32.4 35.2 40.8 44.4 52.4 50.5 46.7 41.0 33.5 28.3 52.4
Year Highest Occurred 1994 1992 1983 1989 1997 1989 1990 1999 1997 1988 1995 1973 1990
Lowest Mean Min. Temperature (F) 5.7 13.4 23.6 24.8 31.0 36.3 39.6 38.5 31.9 27.6 15.2 9.6 5.7
Year Lowest Occurred 1979 1989 1976 1986 1982 1976 1986 1973 1985 1985 1985 1985 1979
Mean Precipitation (in.) 3.93 3.24 1.96 1.14 0.98 0.80 0.35 0.47 0.76 1.26 3.68 4.23 22.80
Highest Precipitation (in.) 9.61 6.80 6.94 3.24 4.98 4.48 1.29 2.18 3.09 3.56 8.40 9.19 9.61
Year Highest Occurred 1974 1996 1983 1982 1984 1984 1992 1989 1986 1973 1984 1980 1974
Lowest Precipitation (in.) 0.24 0.54 0.45 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.60 0.00
Year Lowest Occurred 1985 1993 1973 1977 1992 1999 2000 2000 1999 1978 1993 1976 1977
Heating Degree Days (F) 1108. 883. 801. 608. 419. 234. 115. 115. 272. 559. 881. 1127. 7122.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 12. 82. 81. 37. 0. 0. 0. 212.

Western Regional Climate Center, wrcc@dri.edu