MORRO BAY FIRE DEPT, CALIFORNIA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 62.2 62.8 62.6 63.4 62.7 64.5 65.3 66.5 68.5 69.5 66.3 62.4 64.7
Highest Mean Max. Temperature (F) 66.8 69.4 69.1 68.0 66.0 69.4 69.3 71.2 80.4 77.3 71.8 69.2 66.3
Year Highest Occurred 1986 1988 1988 1989 1967 1976 1983 1984 1984 1965 1989 1980 1976
Lowest Mean Max. Temperature (F) 54.6 56.9 59.1 58.5 59.6 61.2 61.3 64.3 63.1 65.3 62.2 57.0 62.7
Year Lowest Occurred 1987 1962 1985 1967 1965 1962 1962 1973 1962 1988 1973 1971 1962
Mean Temperature (F) 52.2 53.2 53.2 54.1 54.9 57.4 58.6 59.8 60.4 59.9 56.3 52.2 56.0
Highest Mean Temperature (F) 55.2 58.5 58.4 57.3 56.9 60.5 61.9 63.8 69.3 65.0 61.0 57.4 57.9
Year Highest Occurred 1980 1963 1978 1966 1984 1981 1983 1984 1984 1965 1967 1977 1983
Lowest Mean Temperature (F) 45.4 49.1 49.6 50.1 52.2 55.1 56.3 57.2 56.5 56.8 53.0 48.4 54.1
Year Lowest Occurred 1987 1990 1977 1975 1965 1962 1962 1989 1989 1981 1985 1990 1975
Mean Min. Temperature (F) 42.2 43.6 43.7 44.8 47.1 50.2 51.9 52.9 52.3 50.3 46.3 42.0 47.3
Highest Mean Min. Temperature (F) 47.9 49.9 49.8 48.4 49.9 52.8 55.3 56.9 58.2 54.5 52.3 48.8 49.6
Year Highest Occurred 1970 1963 1978 1985 1966 1985 1984 1983 1984 1972 1967 1977 1983
Lowest Mean Min. Temperature (F) 36.1 38.0 39.1 40.6 43.0 47.4 48.2 49.5 48.2 46.2 43.1 35.3 44.5
Year Lowest Occurred 1987 1990 1977 1975 1986 1990 1989 1989 1989 1971 1985 1990 1989
Mean Precipitation (in.) 2.98 2.80 2.73 1.36 0.22 0.04 0.05 0.09 0.39 0.76 1.91 2.40 15.73
Highest Precipitation (in.) 10.60 9.75 6.53 5.11 1.61 0.29 0.52 1.60 2.72 2.64 4.97 5.54 34.63
Year Highest Occurred 1969 1962 1982 1967 1977 1982 1966 1976 1976 1968 1965 1977 1983
Lowest Precipitation (in.) 0.02 0.11 0.03 0.03 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 6.60
Year Lowest Occurred 1976 1964 1972 1973 1988 1990 1990 1990 1988 1978 1980 1989 1961
Heating Degree Days (F) 397. 330. 366. 327. 313. 228. 198. 165. 165. 175. 265. 397. 3326.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 0. 0. 0. 27. 17. 0. 0. 44.

Western Regional Climate Center, wrcc@dri.edu