FAIRFIELD, CALIFORNIA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 54.7 61.6 65.4 70.8 77.8 84.2 88.5 88.3 85.7 78.0 64.6 54.9 72.9
Highest Mean Max. Temperature (F) 60.3 67.1 72.4 79.0 86.8 96.8 98.8 94.5 96.1 83.6 71.4 61.3 77.0
Year Highest Occurred 1976 1988 1984 1985 1984 1981 1984 1969 1984 1965 1986 1979 1984
Lowest Mean Max. Temperature (F) 49.0 55.1 60.6 58.7 69.5 76.2 78.8 81.9 79.5 71.0 58.3 47.7 70.0
Year Lowest Occurred 1972 1969 1975 1967 1977 1965 1966 1976 1977 1972 1982 1963 1975
Mean Temperature (F) 45.5 50.9 54.2 58.1 63.7 68.9 72.0 72.0 69.9 63.5 53.4 45.8 59.8
Highest Mean Temperature (F) 50.8 56.3 59.0 62.5 69.4 76.0 78.2 75.9 75.4 67.0 58.8 50.6 61.9
Year Highest Occurred 1978 1963 1984 1987 1984 1981 1984 1969 1984 1990 1986 1977 1981
Lowest Mean Temperature (F) 39.8 47.1 50.7 49.0 58.5 64.0 66.2 68.6 64.7 59.8 47.5 39.2 57.8
Year Lowest Occurred 1985 1969 1985 1967 1977 1965 1966 1976 1986 1971 1985 1985 1975
Mean Min. Temperature (F) 36.2 40.1 43.0 45.3 49.6 53.6 55.4 55.7 54.1 49.0 42.2 36.6 46.7
Highest Mean Min. Temperature (F) 43.8 45.7 49.4 50.8 53.9 56.2 59.1 59.9 58.3 54.1 47.6 43.1 48.9
Year Highest Occurred 1978 1963 1978 1990 1987 1961 1988 1990 1967 1987 1981 1964 1987
Lowest Mean Min. Temperature (F) 29.6 35.7 36.9 39.2 44.3 49.7 49.8 49.3 46.6 43.2 33.6 29.1 42.0
Year Lowest Occurred 1985 1964 1985 1967 1986 1986 1981 1985 1986 1985 1985 1985 1985
Mean Precipitation (in.) 4.83 3.34 3.15 1.29 0.33 0.13 0.03 0.10 0.31 1.36 3.21 3.30 21.38
Highest Precipitation (in.) 11.75 11.30 10.89 5.49 3.25 1.45 0.60 1.18 1.37 7.85 7.20 7.48 44.28
Year Highest Occurred 1970 1986 1983 1963 1990 1967 1974 1968 1989 1962 1973 1983 1983
Lowest Precipitation (in.) 0.30 0.00 0.19 0.06 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 8.26
Year Lowest Occurred 1984 1964 1972 1985 1984 1990 1990 1990 1988 1978 1980 1989 1976
Heating Degree Days (F) 605. 395. 335. 232. 100. 32. 11. 0. 21. 93. 348. 595. 2767.
Cooling Degree Days (F) 0. 0. 0. 25. 60. 149. 228. 221. 168. 47. 0. 0. 898.

Western Regional Climate Center, wrcc@dri.edu