EUREKA WSO CITY, CALIFORNIA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 54.4 55.6 55.4 55.9 57.9 60.3 61.8 62.6 63.0 60.8 58.1 54.8 58.4
Highest Mean Max. Temperature (F) 61.4 61.4 60.2 61.1 62.5 65.4 66.6 68.3 68.3 65.7 61.8 59.4 62.3
Year Highest Occurred 1986 1963 1983 1989 1988 1986 1983 1983 1979 1982 1987 1979 1983
Lowest Mean Max. Temperature (F) 49.7 51.4 50.9 51.6 53.9 55.5 57.9 58.9 58.4 55.9 52.7 50.0 55.9
Year Lowest Occurred 1969 1965 1964 1964 1965 1965 1962 1973 1965 1971 1985 1990 1971
Mean Temperature (F) 48.0 49.3 49.4 50.2 52.8 55.5 57.0 57.9 57.3 54.7 51.7 48.4 52.7
Highest Mean Temperature (F) 54.3 55.3 53.5 54.6 56.6 59.0 60.5 61.9 62.3 57.9 54.8 52.1 55.6
Year Highest Occurred 1986 1963 1978 1989 1987 1986 1983 1983 1979 1983 1987 1981 1983
Lowest Mean Temperature (F) 44.0 45.5 45.7 46.2 49.9 51.9 53.8 54.8 53.9 50.6 46.6 42.8 50.8
Year Lowest Occurred 1969 1990 1976 1967 1965 1965 1962 1973 1965 1971 1985 1990 1975
Mean Min. Temperature (F) 41.5 42.9 43.4 44.3 47.5 50.6 52.3 53.1 51.6 48.6 45.2 42.0 46.9
Highest Mean Min. Temperature (F) 47.1 49.1 47.5 48.0 51.2 53.2 54.7 55.5 56.2 52.4 48.2 46.2 48.9
Year Highest Occurred 1986 1963 1978 1989 1987 1969 1987 1983 1990 1987 1965 1981 1987
Lowest Mean Min. Temperature (F) 38.2 39.1 39.3 40.1 45.6 47.7 49.6 50.6 49.0 45.3 40.5 35.5 45.6
Year Lowest Occurred 1982 1990 1976 1967 1977 1976 1962 1980 1988 1971 1985 1990 1976
Mean Precipitation (in.) 6.00 4.73 5.32 2.88 1.44 0.51 0.13 0.48 0.89 2.67 6.44 6.04 37.53
Highest Precipitation (in.) 13.92 10.08 10.73 10.68 3.97 2.22 0.89 3.42 3.35 6.77 16.58 14.13 67.21
Year Highest Occurred 1969 1986 1983 1963 1961 1988 1983 1983 1977 1975 1973 1983 1983
Lowest Precipitation (in.) 0.66 0.54 1.18 0.35 0.06 0.05 0.00 0.00 0.00 0.04 1.60 0.52 21.71
Year Lowest Occurred 1985 1988 1988 1973 1966 1979 1981 1988 1974 1978 1989 1976 1976
Heating Degree Days (F) 527. 440. 484. 444. 378. 285. 248. 223. 234. 319. 399. 515. 4496.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.

Western Regional Climate Center, wrcc@dri.edu