PROSPECT 2 SW, OREGON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 47.5 51.9 56.1 61.9 69.4 77.6 86.3 86.8 81.0 69.3 52.0 46.1 65.5
Highest Mean Max. Temperature (F) 53.9 60.3 63.6 70.9 79.0 84.8 91.5 93.1 89.6 80.7 59.8 54.1 93.1
Year Highest Occurred 1981 1988 1992 1987 1992 1987 1996 1981 1974 1987 1976 1989 1981
Lowest Mean Max. Temperature (F) 41.5 44.7 49.5 54.2 59.4 71.7 76.8 78.7 69.8 58.8 43.8 39.1 39.1
Year Lowest Occurred 1982 1979 1971 1975 1998 1980 1993 1976 1978 1984 1994 1972 1972
Mean Temperature (F) 38.2 41.2 44.1 48.2 54.3 61.0 67.5 67.3 61.8 53.1 42.5 37.6 51.4
Highest Mean Temperature (F) 43.9 46.7 48.7 53.7 61.1 66.0 71.9 70.9 66.5 60.2 48.0 41.8 71.9
Year Highest Occurred 1986 1991 1986 1987 1992 1986 1996 1992 1991 1988 1999 1995 1996
Lowest Mean Temperature (F) 33.4 35.3 39.3 41.9 49.1 57.5 60.5 63.5 55.1 47.5 36.0 31.1 31.1
Year Lowest Occurred 1982 1989 1971 1975 1977 1980 1993 1975 1986 1984 1994 1972 1972
Mean Min. Temperature (F) 28.9 30.4 32.0 34.5 39.2 44.4 48.6 47.8 42.6 36.9 32.9 29.0 37.3
Highest Mean Min. Temperature (F) 35.5 34.6 36.4 39.3 43.5 49.0 53.0 51.3 46.7 42.1 38.8 34.2 53.0
Year Highest Occurred 1995 1986 1993 1992 1993 1986 1998 1977 1995 1979 1995 1995 1998
Lowest Mean Min. Temperature (F) 24.1 23.8 27.3 29.5 35.5 40.4 44.1 42.9 39.7 32.8 26.1 22.8 22.8
Year Lowest Occurred 1977 1989 1985 1975 1982 1976 1993 1980 1972 1974 1993 1990 1990
Mean Precipitation (in.) 6.08 5.03 4.71 3.19 2.61 1.15 0.64 0.87 1.43 3.02 6.70 6.80 42.23
Highest Precipitation (in.) 11.74 12.30 9.46 5.78 5.98 2.76 3.54 5.99 7.17 6.54 16.69 18.63 18.63
Year Highest Occurred 1998 1986 1989 1995 1977 1984 1987 1976 1986 1979 1973 1996 1996
Lowest Precipitation (in.) 0.67 0.90 0.85 0.81 0.09 0.08 0.00 0.00 0.00 0.00 1.00 0.69 0.00
Year Lowest Occurred 1985 1988 1992 1987 1982 1999 1988 1994 1999 1987 1976 1976 1988
Heating Degree Days (F) 831. 667. 650. 505. 338. 154. 51. 43. 150. 376. 677. 850. 5292.
Cooling Degree Days (F) 0. 0. 0. 0. 6. 34. 126. 113. 55. 7. 0. 0. 341.

Western Regional Climate Center, wrcc@dri.edu