UNION EXP STN, OREGON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 37.6 43.8 51.9 59.0 66.5 74.1 83.6 84.8 75.4 63.1 46.8 38.4 60.4
Highest Mean Max. Temperature (F) 44.5 52.8 59.6 68.3 75.4 81.8 91.0 91.3 84.8 73.6 55.8 44.3 91.3
Year Highest Occurred 1994 1992 1992 1987 1992 1986 1985 1971 1990 1988 1999 1989 1971
Lowest Mean Max. Temperature (F) 25.9 31.6 45.6 48.1 60.9 68.1 72.7 77.2 65.5 57.4 34.3 30.1 25.9
Year Lowest Occurred 1979 1989 1971 1975 1977 1980 1993 1976 1985 1984 1985 1990 1979
Mean Temperature (F) 30.4 35.2 40.8 46.4 53.2 59.9 66.5 66.7 57.9 48.1 38.2 31.3 47.9
Highest Mean Temperature (F) 37.5 42.7 45.6 53.2 58.5 65.1 71.8 71.1 63.7 55.3 47.2 36.9 71.8
Year Highest Occurred 1994 1992 1986 1987 1993 1992 1998 1971 1998 1988 1999 1979 1998
Lowest Mean Temperature (F) 17.3 23.3 35.5 38.4 49.2 55.9 59.7 61.7 51.6 43.3 25.6 22.6 17.3
Year Lowest Occurred 1979 1989 1975 1975 1975 1980 1993 1980 1985 1971 1985 1990 1979
Mean Min. Temperature (F) 23.2 26.6 29.7 33.8 39.9 45.7 49.4 48.5 40.4 33.0 29.6 24.1 35.3
Highest Mean Min. Temperature (F) 30.5 32.6 33.6 38.1 44.8 49.6 54.5 53.3 46.0 37.0 38.6 30.5 54.5
Year Highest Occurred 1994 1992 1983 1987 1993 1992 1998 1999 1998 1988 1999 1973 1998
Lowest Mean Min. Temperature (F) 8.7 15.0 24.0 28.7 36.5 43.1 46.4 42.8 35.9 28.7 16.9 15.1 8.7
Year Lowest Occurred 1979 1989 1976 1975 1975 1976 1981 1980 1971 1971 1985 1990 1979
Mean Precipitation (in.) 1.15 0.97 1.20 1.52 2.02 1.47 0.71 0.84 0.84 0.97 1.53 1.19 14.41
Highest Precipitation (in.) 2.53 3.03 2.88 3.69 6.45 3.34 2.88 2.82 2.41 2.32 3.59 3.12 6.45
Year Highest Occurred 1975 1986 1983 1978 1998 1984 1982 1976 1980 2000 1995 1983 1998
Lowest Precipitation (in.) 0.24 0.21 0.27 0.14 0.50 0.33 0.03 0.00 0.00 0.00 0.31 0.13 0.00
Year Lowest Occurred 1977 1973 1994 1973 1992 1986 1988 2000 1999 1987 1993 1976 2000
Heating Degree Days (F) 1073. 835. 751. 558. 368. 179. 62. 69. 243. 525. 803. 1047. 6513.
Cooling Degree Days (F) 0. 0. 0. 0. 1. 26. 108. 119. 30. 0. 0. 0. 284.

Western Regional Climate Center, wrcc@dri.edu