SHELTON, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 45.3 48.9 54.2 59.9 66.9 71.6 77.3 77.6 72.3 61.0 50.2 44.6 60.8
Highest Mean Max. Temperature (F) 48.8 53.9 60.3 64.2 73.8 77.5 84.5 83.4 78.9 66.7 55.1 49.3 84.5
Year Highest Occurred 1994 1991 1992 1989 1992 1987 1985 1986 1998 1987 1997 1979 1985
Lowest Mean Max. Temperature (F) 41.1 42.9 48.9 54.9 61.4 66.4 71.1 71.0 66.2 57.4 42.5 39.2 39.2
Year Lowest Occurred 1979 1989 1989 1972 1974 1971 1993 1976 1978 1984 1985 1990 1990
Mean Temperature (F) 39.1 41.4 45.1 49.4 55.5 60.0 64.5 64.8 59.8 51.0 43.3 38.7 51.1
Highest Mean Temperature (F) 42.8 45.8 49.6 52.3 59.7 63.9 68.4 68.3 63.0 54.1 47.3 43.0 68.4
Year Highest Occurred 1994 1991 1992 1989 1992 1992 1985 1986 1995 1988 1999 1980 1985
Lowest Mean Temperature (F) 33.2 34.5 40.6 44.9 51.4 56.7 61.1 60.1 55.9 48.4 35.3 33.4 33.2
Year Lowest Occurred 1979 1989 1971 1972 1974 1971 1993 1973 1972 1984 1985 1990 1979
Mean Min. Temperature (F) 32.9 33.8 35.9 38.8 44.1 48.4 51.7 52.0 47.3 40.9 36.4 32.8 41.3
Highest Mean Min. Temperature (F) 36.9 37.9 39.7 43.0 48.4 51.5 54.8 54.1 50.7 46.4 41.3 37.3 54.8
Year Highest Occurred 1994 1978 1986 1996 1993 1992 1998 1999 1990 1988 1999 1980 1998
Lowest Mean Min. Temperature (F) 25.3 26.2 31.8 34.3 41.1 45.0 48.9 47.5 43.8 36.1 28.1 27.5 25.3
Year Lowest Occurred 1979 1989 1975 1975 1999 1976 1977 1973 1972 1972 1985 1990 1979
Mean Precipitation (in.) 9.91 8.52 6.85 4.48 2.62 1.80 0.99 1.24 2.47 5.26 10.57 10.98 65.69
Highest Precipitation (in.) 16.95 18.32 18.20 10.40 6.90 3.49 2.89 4.73 8.41 13.72 20.06 20.04 20.06
Year Highest Occurred 1990 1999 1997 1996 1984 1990 1972 1977 1978 1975 1998 1979 1998
Lowest Precipitation (in.) 0.44 0.20 1.03 1.78 0.07 0.27 0.00 0.00 0.00 0.41 2.58 2.89 0.00
Year Lowest Occurred 1985 1993 1992 1998 1992 1987 1985 1998 1991 1987 1976 1985 1985
Heating Degree Days (F) 803. 662. 620. 470. 296. 164. 70. 68. 172. 435. 651. 816. 5227.
Cooling Degree Days (F) 0. 0. 0. 0. 2. 13. 54. 62. 16. 0. 0. 0. 147.

Western Regional Climate Center, wrcc@dri.edu