BOARDMAN, OREGON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 40.7 47.5 57.3 65.7 74.2 81.3 89.4 88.4 78.9 66.0 50.7 41.5 65.1
Highest Mean Max. Temperature (F) 48.3 53.9 62.2 70.8 79.7 89.6 96.9 94.2 84.6 73.6 58.9 47.1 96.9
Year Highest Occurred 1990 1991 1986 1990 1985 1986 1985 1986 1990 1988 1990 1974 1985
Lowest Mean Max. Temperature (F) 22.9 36.4 50.3 59.3 69.2 75.0 80.7 82.7 72.0 62.8 38.7 27.9 22.9
Year Lowest Occurred 1979 1989 1993 1975 1977 1991 1993 1976 1986 1984 1985 1985 1979
Mean Temperature (F) 33.1 37.8 44.9 51.9 59.7 66.7 73.2 72.4 63.4 52.0 41.8 34.4 52.6
Highest Mean Temperature (F) 40.0 43.1 49.2 56.8 64.3 72.1 78.9 75.8 68.1 57.8 48.3 39.8 78.9
Year Highest Occurred 1990 1991 1983 1994 1993 1986 1998 1971 1990 1988 1990 1999 1998
Lowest Mean Temperature (F) 15.7 26.4 40.0 45.9 55.6 62.3 67.5 67.7 59.1 49.8 30.5 22.4 15.7
Year Lowest Occurred 1979 1989 1971 1975 1977 1976 1993 1976 1971 1984 1985 1983 1979
Mean Min. Temperature (F) 25.5 28.0 32.5 38.1 45.2 52.1 57.0 56.4 47.8 37.9 32.9 27.2 40.1
Highest Mean Min. Temperature (F) 31.6 34.1 37.7 44.1 50.1 57.2 63.8 59.8 53.5 43.5 37.8 33.5 63.8
Year Highest Occurred 1981 1992 1983 1994 1993 1992 1998 1999 1998 1979 1998 1999 1998
Lowest Mean Min. Temperature (F) 8.6 16.3 26.7 31.9 41.9 46.2 53.4 52.6 43.8 32.6 22.3 13.5 8.6
Year Lowest Occurred 1979 1989 1985 1982 1976 1976 1983 1976 1971 1976 1985 1983 1979
Mean Precipitation (in.) 1.19 0.91 0.73 0.70 0.63 0.45 0.28 0.31 0.42 0.58 1.22 1.19 8.61
Highest Precipitation (in.) 2.87 3.42 1.58 2.86 1.99 1.79 1.14 1.07 2.35 1.83 3.43 2.76 3.43
Year Highest Occurred 1980 1998 1989 1988 1972 1972 1983 1978 1982 1997 1973 1973 1973
Lowest Precipitation (in.) 0.10 0.01 0.10 0.02 0.08 0.02 0.00 0.00 0.00 0.00 0.23 0.15 0.00
Year Lowest Occurred 1977 1988 1999 2000 1992 1979 2000 2000 1999 1993 1993 1988 2000
Heating Degree Days (F) 988. 764. 623. 394. 183. 55. 9. 9. 115. 406. 696. 950. 5192.
Cooling Degree Days (F) 0. 0. 0. 2. 19. 106. 263. 238. 65. 0. 0. 0. 693.

Western Regional Climate Center, wrcc@dri.edu