RIDDLE 2 NNE, OREGON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 49.1 54.4 58.3 62.8 69.2 76.1 83.3 83.8 79.1 68.4 54.5 47.9 65.6
Highest Mean Max. Temperature (F) 53.5 62.7 64.6 69.6 78.6 80.8 89.4 89.3 86.4 76.4 59.9 52.2 89.4
Year Highest Occurred 1994 1992 1992 1987 1992 1986 1985 1986 1974 1987 1995 1995 1985
Lowest Mean Max. Temperature (F) 44.0 47.8 52.3 55.0 61.8 69.4 75.2 78.6 71.6 62.0 47.0 42.6 42.6
Year Lowest Occurred 1979 1989 1975 1975 1977 1980 1983 1976 1986 1984 1985 1990 1990
Mean Temperature (F) 41.4 45.0 47.8 51.2 56.8 62.7 68.3 68.1 62.9 54.9 46.5 41.1 53.9
Highest Mean Temperature (F) 45.5 51.1 52.8 55.8 63.0 66.5 72.1 71.9 66.4 59.6 52.0 46.3 72.1
Year Highest Occurred 1998 1995 1993 1989 1992 1992 1985 1986 1995 1988 1995 1995 1985
Lowest Mean Temperature (F) 35.9 37.6 43.3 45.5 51.2 58.4 64.2 64.9 58.1 51.7 39.8 35.3 35.3
Year Lowest Occurred 1979 1989 1985 1975 1977 1976 1983 1980 1985 1984 1985 1990 1990
Mean Min. Temperature (F) 33.7 35.5 37.3 39.5 44.3 49.2 53.2 52.3 46.6 41.4 38.4 34.2 42.1
Highest Mean Min. Temperature (F) 39.1 41.5 42.5 43.3 47.4 53.1 56.7 55.9 50.8 46.0 44.1 40.3 56.7
Year Highest Occurred 1998 1995 1993 1992 1992 1992 1998 1990 1995 1988 1995 1995 1998
Lowest Mean Min. Temperature (F) 27.7 27.4 33.1 35.8 40.7 43.9 49.8 48.1 43.7 36.4 29.9 27.9 27.4
Year Lowest Occurred 1977 1989 1985 1982 1977 1976 1977 1980 1972 1974 1978 1990 1989
Mean Precipitation (in.) 4.70 3.86 3.51 2.42 1.56 0.86 0.38 0.62 1.01 2.15 5.20 5.28 31.55
Highest Precipitation (in.) 9.81 9.27 6.85 4.80 6.77 3.22 1.49 3.08 4.51 5.02 15.26 15.96 15.96
Year Highest Occurred 1974 1983 1983 1996 1998 1992 2000 1983 1986 1979 1973 1996 1996
Lowest Precipitation (in.) 0.79 0.49 1.41 0.67 0.28 0.10 0.00 0.00 0.00 0.03 0.31 0.83 0.00
Year Lowest Occurred 1985 1988 2000 1990 1982 1977 1998 1996 1999 1987 1976 1976 1998
Heating Degree Days (F) 731. 561. 533. 415. 265. 105. 28. 26. 114. 314. 557. 743. 4392.
Cooling Degree Days (F) 0. 0. 0. 0. 9. 35. 128. 121. 50. 1. 0. 0. 344.

Western Regional Climate Center, wrcc@dri.edu