TACOMA #1, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 46.9 50.3 54.6 60.2 66.1 71.0 76.1 76.6 71.3 61.4 52.2 46.6 61.1
Highest Mean Max. Temperature (F) 51.8 54.9 59.2 64.2 70.7 77.3 83.7 81.6 76.8 65.9 57.3 50.6 83.7
Year Highest Occurred 1995 1977 1986 1987 1992 1982 1985 1986 1974 1987 1997 1979 1985
Lowest Mean Max. Temperature (F) 40.5 44.7 49.5 55.7 61.9 65.8 70.3 70.6 66.6 58.7 42.8 41.3 40.5
Year Lowest Occurred 1979 1989 1971 1972 1974 1971 1993 1976 1972 1975 1985 1990 1979
Mean Temperature (F) 41.0 43.4 46.7 51.1 56.6 61.3 65.6 65.7 61.0 53.1 45.9 41.0 52.7
Highest Mean Temperature (F) 45.7 47.6 50.5 53.9 60.6 64.9 69.1 68.7 63.7 56.2 49.7 44.9 69.1
Year Highest Occurred 1994 1991 1986 1989 1993 1992 1985 1977 1995 1988 1995 1979 1985
Lowest Mean Temperature (F) 33.8 36.6 42.2 46.8 53.1 57.4 62.5 62.0 57.2 50.8 37.1 36.1 33.8
Year Lowest Occurred 1979 1989 1971 1975 1999 1971 1993 1973 1972 1972 1985 1983 1979
Mean Min. Temperature (F) 35.1 36.4 38.7 42.0 47.1 51.5 55.0 54.8 50.7 44.7 39.6 35.4 44.3
Highest Mean Min. Temperature (F) 40.0 40.5 42.5 45.0 50.8 54.6 59.1 57.6 53.7 50.1 43.0 39.4 59.1
Year Highest Occurred 1994 1998 1983 1994 1993 1992 1998 1997 1995 1988 1995 1999 1998
Lowest Mean Min. Temperature (F) 27.1 28.5 34.8 37.5 44.1 48.1 52.9 51.0 46.7 41.5 31.4 30.6 27.1
Year Lowest Occurred 1979 1989 1971 1975 1999 1976 1986 1973 1983 1972 1985 1983 1979
Mean Precipitation (in.) 5.38 4.44 4.18 2.87 2.01 1.58 0.86 0.83 1.42 3.39 6.10 5.89 38.95
Highest Precipitation (in.) 10.90 8.56 7.84 7.69 4.42 4.15 2.76 2.87 4.10 7.92 11.49 11.27 11.49
Year Highest Occurred 1990 1996 1997 1996 1984 1984 1983 1991 1978 1975 1990 1996 1990
Lowest Precipitation (in.) 0.55 0.25 1.28 0.98 0.05 0.40 0.00 0.00 0.00 0.40 1.15 1.69 0.00
Year Lowest Occurred 1985 1993 1992 1998 1992 1987 1984 1998 1993 1987 1993 1985 1984
Heating Degree Days (F) 744. 606. 569. 417. 264. 129. 46. 48. 138. 371. 573. 745. 4650.
Cooling Degree Days (F) 0. 0. 0. 0. 3. 17. 61. 69. 17. 0. 0. 0. 167.

Western Regional Climate Center, wrcc@dri.edu