FOSSIL, OREGON

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 41.5 47.0 52.1 58.6 66.6 75.2 83.7 83.4 74.8 64.6 48.9 41.6 61.5
Highest Mean Max. Temperature (F) 49.1 54.2 57.8 66.5 74.4 83.0 91.1 90.8 83.2 72.5 53.0 51.6 63.8
Year Highest Occurred 1983 1963 1968 1977 1966 1977 1985 1967 1967 1987 1980 1980 1967
Lowest Mean Max. Temperature (F) 25.6 36.1 45.8 51.0 60.4 67.2 78.6 74.5 66.3 54.4 34.8 31.7 57.6
Year Lowest Occurred 1979 1989 1971 1967 1977 1984 1986 1976 1985 1984 1985 1985 1985
Mean Temperature (F) 32.8 37.0 40.4 44.8 51.1 58.7 64.3 64.5 57.3 49.1 39.2 33.3 47.7
Highest Mean Temperature (F) 41.4 43.0 47.3 49.4 55.4 65.3 69.6 72.0 62.9 53.9 43.5 41.7 49.5
Year Highest Occurred 1983 1961 1983 1987 1983 1977 1985 1977 1963 1988 1983 1980 1983
Lowest Mean Temperature (F) 15.8 24.4 35.5 39.1 47.3 51.8 59.6 59.7 51.2 41.9 26.0 24.3 44.2
Year Lowest Occurred 1979 1989 1976 1967 1964 1976 1986 1976 1985 1984 1985 1985 1985
Mean Min. Temperature (F) 24.1 26.9 28.6 31.0 35.5 42.0 44.8 45.5 39.8 33.6 29.5 25.1 33.9
Highest Mean Min. Temperature (F) 33.7 33.6 39.1 34.3 39.8 47.6 51.1 54.7 46.1 37.9 35.6 32.3 37.1
Year Highest Occurred 1983 1983 1983 1981 1983 1977 1975 1977 1963 1977 1983 1973 1983
Lowest Mean Min. Temperature (F) 5.9 12.6 21.4 25.0 28.3 34.8 40.5 40.8 34.1 29.3 17.2 15.5 30.7
Year Lowest Occurred 1979 1989 1965 1964 1964 1976 1986 1969 1965 1984 1985 1990 1985
Mean Precipitation (in.) 1.67 1.23 1.35 1.37 1.28 1.06 0.50 0.81 0.84 1.17 1.95 1.80 15.03
Highest Precipitation (in.) 4.59 3.33 3.25 3.15 3.97 3.07 2.48 3.81 2.33 3.63 4.14 7.02 22.52
Year Highest Occurred 1970 1961 1984 1988 1981 1969 1978 1976 1982 1979 1988 1964 1981
Lowest Precipitation (in.) 0.23 0.09 0.47 0.02 0.08 0.12 0.00 0.00 0.00 0.00 0.49 0.19 7.75
Year Lowest Occurred 1984 1964 1964 1966 1964 1962 1988 1988 1975 1987 1976 1965 1974
Heating Degree Days (F) 998. 784. 763. 606. 431. 218. 96. 96. 250. 493. 774. 983. 6492.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 29. 74. 81. 19. 0. 0. 0. 203.

Western Regional Climate Center, wrcc@dri.edu