EUREKA WSO CITY, CALIFORNIA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 55.0 55.9 56.1 57.4 59.6 61.8 63.3 63.9 63.6 61.3 58.0 55.1 59.3
Highest Mean Max. Temperature (F) 60.2 60.8 60.3 62.8 65.1 64.5 65.7 68.1 69.4 64.9 61.3 60.0 69.4
Year Highest Occurred 1981 1992 1992 1992 1997 1986 1983 1997 1997 1992 1999 1979 1997
Lowest Mean Max. Temperature (F) 50.1 50.3 52.5 52.7 56.0 57.9 61.2 60.0 60.4 56.6 51.5 48.6 48.6
Year Lowest Occurred 1982 1990 1985 1975 1991 1991 1991 1973 1975 1971 1985 1990 1990
Mean Temperature (F) 47.9 48.9 49.2 50.7 53.6 56.3 58.1 58.7 57.4 54.5 51.0 47.9 52.9
Highest Mean Temperature (F) 53.2 53.2 53.2 55.2 57.8 58.9 60.4 61.6 62.6 57.4 54.7 52.3 62.6
Year Highest Occurred 1986 1980 1978 1992 1997 1986 1983 1983 1979 1979 1999 1981 1979
Lowest Mean Temperature (F) 43.8 43.3 45.4 46.7 50.8 52.7 56.1 55.6 54.5 50.6 44.6 40.9 40.9
Year Lowest Occurred 1982 1990 1976 1975 1991 1991 1971 1973 1988 1971 1994 1990 1990
Mean Min. Temperature (F) 40.8 41.8 42.2 44.0 47.6 50.7 52.8 53.4 51.2 47.7 43.9 40.6 46.4
Highest Mean Min. Temperature (F) 46.4 46.3 46.4 47.7 50.5 53.3 55.2 55.9 56.1 51.2 48.0 45.9 56.1
Year Highest Occurred 1986 1986 1978 1992 1997 1986 1983 1983 1979 1983 1999 1981 1979
Lowest Mean Min. Temperature (F) 37.4 36.3 38.2 40.7 45.2 47.5 50.9 51.0 47.6 44.6 35.7 33.3 33.3
Year Lowest Occurred 1993 1990 1976 1975 1999 1991 1971 1980 1988 1971 1994 1990 1990
Mean Precipitation (in.) 5.97 5.51 5.55 2.91 1.62 0.65 0.16 0.38 0.86 2.36 5.78 6.35 38.10
Highest Precipitation (in.) 13.42 13.95 11.18 7.47 4.44 2.22 1.13 3.42 3.35 6.77 16.58 21.26 21.26
Year Highest Occurred 1998 1998 1995 1995 1993 1988 1991 1983 1977 1975 1973 1996 1996
Lowest Precipitation (in.) 0.66 0.54 1.18 0.35 0.06 0.05 0.00 0.00 0.00 0.04 1.35 0.52 0.00
Year Lowest Occurred 1985 1988 1988 1973 1992 1996 1997 2000 1991 1978 1993 1976 1997
Heating Degree Days (F) 530. 451. 475. 430. 354. 263. 216. 198. 232. 326. 423. 532. 4430.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 0. 0. 2. 5. 0. 0. 0. 7.

Western Regional Climate Center, wrcc@dri.edu