ROCKSVILLE 5 N, OREGON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 38.0 44.5 53.8 62.7 70.8 79.8 88.4 87.4 77.0 63.9 47.8 38.3 62.7
Highest Mean Max. Temperature (F) 46.3 51.1 61.0 72.9 80.1 87.0 92.5 93.0 83.8 73.0 56.1 45.1 93.0
Year Highest Occurred 1998 1995 1994 1987 1992 1974 1994 1971 1990 1988 1999 1979 1971
Lowest Mean Max. Temperature (F) 27.8 32.9 47.6 52.3 64.7 73.1 78.4 79.7 67.7 58.7 38.9 25.4 25.4
Year Lowest Occurred 1979 1989 1985 1975 1977 1993 1993 1976 1985 1984 1985 1985 1985
Mean Temperature (F) 28.5 33.6 40.2 46.6 53.9 61.4 68.0 67.1 57.7 47.1 36.1 28.4 47.4
Highest Mean Temperature (F) 37.1 39.0 44.8 52.2 58.2 66.6 72.2 72.5 62.1 54.1 41.2 35.0 72.5
Year Highest Occurred 1998 1983 1986 1987 1992 1977 1985 1991 1998 1988 1995 1977 1991
Lowest Mean Temperature (F) 15.9 23.4 34.5 39.5 50.2 56.6 59.7 62.3 52.7 43.8 27.1 14.7 14.7
Year Lowest Occurred 1979 1989 1976 1975 1977 1993 1993 1993 1985 1995 1985 1985 1985
Mean Min. Temperature (F) 18.9 22.7 26.5 30.4 37.0 43.0 47.6 46.7 38.4 30.3 24.3 18.5 32.0
Highest Mean Min. Temperature (F) 27.8 29.2 32.3 35.0 41.0 48.7 53.8 54.4 44.1 36.6 30.7 26.4 54.4
Year Highest Occurred 1998 1983 1983 1990 1993 1988 1975 1991 1998 1975 1983 1977 1991
Lowest Mean Min. Temperature (F) 4.0 13.9 20.4 26.5 32.6 39.3 40.9 41.6 34.0 25.5 12.7 4.0 4.0
Year Lowest Occurred 1979 1989 1976 1999 1999 1991 1993 1995 1971 1999 1993 1985 1985
Mean Precipitation (in.) 1.01 0.95 1.41 1.35 1.64 1.11 0.54 0.53 0.62 0.85 1.16 1.11 12.28
Highest Precipitation (in.) 3.15 2.17 3.12 3.94 5.14 2.57 2.15 3.28 2.10 3.10 2.37 3.46 5.14
Year Highest Occurred 1997 1986 1993 1978 1998 1993 1985 1979 1982 2000 1984 1983 1998
Lowest Precipitation (in.) 0.10 0.00 0.20 0.30 0.12 0.10 0.00 0.00 0.00 0.00 0.10 0.10 0.00
Year Lowest Occurred 1992 1971 1976 1989 1976 1989 2000 2000 1999 1998 1999 1989 1971
Heating Degree Days (F) 1133. 880. 771. 553. 345. 153. 46. 54. 234. 554. 869. 1134. 6726.
Cooling Degree Days (F) 0. 0. 0. 0. 1. 44. 137. 118. 15. 0. 0. 0. 315.

Western Regional Climate Center, wrcc@dri.edu