MILL CREEK DAM, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F)
Highest Mean Max. Temperature (F)
Year Highest Occurred
Lowest Mean Max. Temperature (F)
Year Lowest Occurred
Mean Temperature (F)
Highest Mean Temperature (F)
Year Highest Occurred
Lowest Mean Temperature (F)
Year Lowest Occurred
Mean Min. Temperature (F)
Highest Mean Min. Temperature (F)
Year Highest Occurred
Lowest Mean Min. Temperature (F)
Year Lowest Occurred
Mean Precipitation (in.) 2.20 1.84 2.15 1.72 1.88 1.15 0.58 0.80 0.84 1.48 2.62 2.45 19.71
Highest Precipitation (in.) 4.70 3.59 4.25 3.88 5.67 3.05 3.16 3.23 2.28 3.20 5.62 5.06 5.67
Year Highest Occurred 1975 1986 1983 1978 1991 1971 1992 1977 1971 1982 1973 1973 1991
Lowest Precipitation (in.) 0.70 0.41 0.55 0.38 0.39 0.32 0.00 0.00 0.00 0.00 0.60 0.75 0.00
Year Lowest Occurred 1985 1977 1992 1977 1992 1998 1996 2000 1999 1987 1993 1986 1996
Heating Degree Days (F)
Cooling Degree Days (F)

Western Regional Climate Center, wrcc@dri.edu