PULLMAN 2 NW, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 35.3 40.8 48.3 56.5 64.7 71.8 81.6 83.2 73.5 60.4 43.3 35.5 57.9
Highest Mean Max. Temperature (F) 42.9 48.6 56.5 64.4 70.9 79.6 89.6 90.6 82.9 68.9 50.7 41.9 90.6
Year Highest Occurred 1994 1991 1992 1987 1992 1992 1985 1971 1990 1988 1999 1980 1971
Lowest Mean Max. Temperature (F) 22.2 29.7 42.7 49.8 58.7 65.5 71.7 77.1 64.6 53.5 30.5 25.9 22.2
Year Lowest Occurred 1979 1989 1976 1975 1996 1991 1993 1989 1985 1995 1985 1985 1979
Mean Temperature (F) 29.6 34.0 39.9 46.2 53.2 59.2 65.9 66.8 58.7 48.5 36.8 29.9 47.4
Highest Mean Temperature (F) 37.7 41.4 45.6 51.8 59.1 64.5 72.0 71.9 64.8 55.6 43.4 35.9 72.0
Year Highest Occurred 1994 1991 1992 1987 1993 1992 1998 1971 1998 1988 1999 1973 1998
Lowest Mean Temperature (F) 14.7 23.4 34.1 40.5 49.3 55.4 60.8 61.2 52.6 44.8 24.2 19.2 14.7
Year Lowest Occurred 1979 1989 1976 1975 1999 1991 1993 1980 1985 1984 1985 1985 1979
Mean Min. Temperature (F) 23.8 27.2 31.5 35.9 41.6 46.5 50.1 50.3 43.9 36.5 30.3 24.2 36.8
Highest Mean Min. Temperature (F) 32.5 34.1 36.6 39.7 47.8 49.3 55.6 53.6 48.3 42.2 36.1 31.4 55.6
Year Highest Occurred 1994 1991 1986 1994 1993 1993 1998 1999 1998 1988 1999 1973 1998
Lowest Mean Min. Temperature (F) 7.1 17.0 25.6 31.1 37.9 43.4 46.0 44.3 38.9 33.4 17.8 12.4 7.1
Year Lowest Occurred 1979 1989 1976 1975 1999 1976 1999 1980 1999 1978 1985 1985 1979
Mean Precipitation (in.) 2.46 2.10 2.01 1.72 1.77 1.30 0.79 0.89 0.88 1.48 2.83 2.78 21.01
Highest Precipitation (in.) 5.08 4.62 3.70 4.66 3.34 3.48 1.74 3.81 2.45 3.32 5.67 5.51 5.67
Year Highest Occurred 1974 1996 1971 1996 1998 1971 1983 1989 1986 1997 1973 1996 1973
Lowest Precipitation (in.) 0.40 0.45 0.45 0.19 0.39 0.21 0.00 0.02 0.00 0.00 0.52 0.62 0.00
Year Lowest Occurred 1977 1977 1992 1973 1992 1986 2000 1996 1987 1987 1976 1985 2000
Heating Degree Days (F) 1099. 867. 778. 565. 370. 198. 73. 64. 224. 513. 847. 1090. 6688.
Cooling Degree Days (F) 0. 0. 0. 0. 2. 22. 98. 119. 35. 0. 0. 0. 276.
Western Regional Climate Center, wrcc@dri.edu