MILTON, OREGON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 41.5 47.5 56.2 63.8 71.6 79.4 87.9 87.2 77.5 64.9 50.3 42.0 64.2
Highest Mean Max. Temperature (F) 50.7 55.6 60.8 69.1 77.4 86.0 94.9 92.9 85.2 71.8 57.1 48.8 94.9
Year Highest Occurred 1999 1991 1994 1990 1992 1986 1985 1986 1990 1988 1990 1979 1985
Lowest Mean Max. Temperature (F) 23.2 34.6 51.4 57.0 66.4 74.1 79.3 80.6 70.4 61.5 34.8 26.4 23.2
Year Lowest Occurred 1979 1989 1975 1975 1977 1971 1993 1976 1985 1984 1985 1985 1979
Mean Temperature (F) 34.5 39.6 46.8 53.0 60.0 66.9 73.9 73.1 64.2 53.3 42.3 35.1 53.6
Highest Mean Temperature (F) 43.4 46.2 50.7 57.6 64.7 72.8 80.4 77.7 71.2 59.3 48.3 41.3 80.4
Year Highest Occurred 1999 1991 1992 1990 1992 1986 1998 1986 1990 1988 1999 1973 1998
Lowest Mean Temperature (F) 15.8 27.2 42.5 46.7 56.0 62.9 67.7 67.6 58.2 50.3 28.4 21.9 15.8
Year Lowest Occurred 1979 1989 1975 1975 1977 1971 1993 1980 1971 1971 1985 1985 1979
Mean Min. Temperature (F) 27.4 31.7 37.4 42.2 48.3 54.3 59.8 58.9 50.9 41.7 34.3 28.2 42.9
Highest Mean Min. Temperature (F) 36.1 37.8 41.9 46.7 52.7 59.8 66.6 62.8 58.7 46.7 40.9 34.9 66.6
Year Highest Occurred 1999 1992 1986 1994 1993 1992 1998 1977 1998 1988 1998 1973 1998
Lowest Mean Min. Temperature (F) 8.4 19.8 33.1 36.5 45.5 50.9 56.0 53.6 43.5 37.6 22.0 17.4 8.4
Year Lowest Occurred 1979 1989 1971 1975 1996 1976 1993 1980 1971 1978 1985 1985 1979
Mean Precipitation (in.) 1.70 1.37 1.74 1.48 1.61 1.05 0.56 0.69 0.76 1.14 2.07 1.79 15.96
Highest Precipitation (in.) 3.55 3.58 3.59 3.35 5.88 2.97 2.38 2.99 2.50 2.28 4.32 4.47 5.88
Year Highest Occurred 1975 2000 1989 1993 1991 1991 1992 1993 1986 1980 1991 1996 1991
Lowest Precipitation (in.) 0.19 0.23 0.32 0.15 0.22 0.14 0.00 0.00 0.00 0.00 0.18 0.44 0.00
Year Lowest Occurred 1985 1988 1994 1973 1974 1973 1999 2000 1999 1987 1993 1976 1999
Heating Degree Days (F) 946. 713. 564. 364. 181. 63. 11. 15. 123. 364. 681. 926. 4951.
Cooling Degree Days (F) 0. 0. 0. 4. 24. 119. 286. 265. 100. 1. 0. 0. 799.

Western Regional Climate Center, wrcc@dri.edu