ADEL 1 S, OREGON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 41.7 45.4 51.6 58.9 67.9 77.6 86.8 86.3 77.1 65.5 48.6 41.7 62.4
Highest Mean Max. Temperature (F) 50.6 55.0 60.0 69.8 79.5 85.2 91.6 90.7 84.2 78.9 58.5 49.8 91.6
Year Highest Occurred 1986 1995 1978 1987 1992 1974 1988 1998 1987 1988 1976 1976 1988
Lowest Mean Max. Temperature (F) 34.8 37.0 42.4 49.2 57.7 70.9 79.1 77.1 66.1 56.6 39.2 34.5 34.5
Year Lowest Occurred 1993 1989 1971 1975 1998 1971 1993 1976 1986 1981 1994 1990 1990
Mean Temperature (F) 30.9 34.2 39.1 45.2 53.1 61.5 68.9 67.9 59.0 49.1 37.2 31.2 48.1
Highest Mean Temperature (F) 38.9 40.9 45.8 52.4 60.9 67.1 72.7 71.7 64.1 58.2 44.3 36.2 72.7
Year Highest Occurred 1986 1995 1978 1987 1992 1974 1994 1971 1987 1988 1999 1980 1994
Lowest Mean Temperature (F) 24.2 22.9 30.6 37.3 46.4 57.4 62.5 61.9 51.1 43.1 29.7 20.8 20.8
Year Lowest Occurred 1977 1989 1971 1975 1977 1980 1993 1976 1985 1984 1994 1990 1990
Mean Min. Temperature (F) 20.1 22.9 26.6 31.4 38.2 45.4 51.0 49.4 40.8 32.6 25.7 20.7 33.7
Highest Mean Min. Temperature (F) 27.2 28.8 31.6 35.9 42.4 51.2 54.5 54.3 44.4 38.1 31.5 27.4 54.5
Year Highest Occurred 1986 1980 1978 1990 1973 1977 1996 1971 1998 1987 1999 1981 1996
Lowest Mean Min. Temperature (F) 12.1 8.8 18.9 25.4 34.1 41.3 45.8 45.4 35.1 26.6 19.1 7.0 7.0
Year Lowest Occurred 1977 1989 1971 1975 1977 1980 1993 1985 1978 1985 1993 1990 1990
Mean Precipitation (in.) 0.89 0.97 0.93 0.93 0.83 0.66 0.38 0.38 0.48 0.63 1.14 0.96 9.18
Highest Precipitation (in.) 2.70 4.86 3.65 3.23 3.06 2.13 1.81 2.76 1.97 2.48 3.32 3.09 4.86
Year Highest Occurred 1980 1986 1983 1978 1971 1987 1987 1979 1971 2000 1981 1981 1986
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00
Year Lowest Occurred 1999 1999 1998 1998 1998 1986 1997 2000 1999 1995 1976 1998 1999
Heating Degree Days (F) 1058. 864. 802. 596. 379. 156. 31. 46. 224. 497. 835. 1048. 6536.
Cooling Degree Days (F) 0. 0. 0. 0. 8. 50. 152. 136. 41. 3. 0. 0. 390.

Western Regional Climate Center, wrcc@dri.edu