CHULA VISTA, CALIFORNIA

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 65.2 65.7 65.1 66.8 67.2 69.3 73.1 75.0 75.5 73.4 69.0 65.3 69.2
Highest Mean Max. Temperature (F) 72.9 72.5 72.5 73.8 72.3 75.9 81.2 81.2 83.3 79.2 74.3 72.0 73.0
Year Highest Occurred 1986 1988 1988 1989 1984 1990 1984 1983 1984 1983 1990 1989 1990
Lowest Mean Max. Temperature (F) 60.1 60.7 60.6 61.3 63.0 64.6 68.6 70.8 70.9 69.1 64.8 60.1 65.6
Year Lowest Occurred 1972 1975 1962 1967 1964 1965 1965 1975 1973 1962 1971 1971 1975
Mean Temperature (F) 55.3 56.3 57.1 59.3 61.6 64.4 68.2 70.0 69.2 65.3 59.6 55.4 61.8
Highest Mean Temperature (F) 60.9 59.8 61.2 65.6 64.4 69.0 74.2 74.5 75.8 69.3 62.8 60.2 64.3
Year Highest Occurred 1986 1988 1986 1989 1990 1981 1984 1983 1984 1983 1976 1977 1983
Lowest Mean Temperature (F) 50.6 52.9 53.1 54.4 57.9 61.0 64.4 66.2 65.3 61.6 55.9 51.6 59.1
Year Lowest Occurred 1972 1975 1962 1967 1964 1965 1965 1975 1965 1969 1971 1971 1975
Mean Min. Temperature (F) 45.3 47.0 49.1 51.8 56.0 59.4 63.3 65.0 62.7 57.1 50.1 45.5 54.4
Highest Mean Min. Temperature (F) 51.2 51.9 53.9 57.3 59.0 63.6 67.1 67.7 68.2 61.8 55.0 53.3 56.8
Year Highest Occurred 1980 1980 1978 1989 1987 1981 1984 1983 1984 1987 1967 1977 1981
Lowest Mean Min. Temperature (F) 41.0 42.6 45.5 47.4 52.8 56.8 60.2 61.5 59.0 52.9 46.8 41.3 52.5
Year Lowest Occurred 1972 1964 1962 1967 1964 1971 1965 1975 1965 1971 1964 1968 1975
Mean Precipitation (in.) 1.55 1.38 1.76 0.77 0.16 0.07 0.02 0.08 0.24 0.35 1.55 1.41 9.34
Highest Precipitation (in.) 4.75 4.82 7.39 3.84 1.42 0.60 0.16 2.00 2.22 2.10 8.13 5.25 19.11
Year Highest Occurred 1980 1976 1983 1965 1977 1990 1968 1977 1963 1987 1985 1984 1983
Lowest Precipitation (in.) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 3.50
Year Lowest Occurred 1976 1984 1972 1966 1986 1989 1990 1990 1990 1988 1980 1979 1989
Heating Degree Days (F) 304. 246. 251. 186. 126. 78. 35. 10. 29. 65. 170. 298. 1798.
Cooling Degree Days (F) 0. 0. 6. 15. 20. 60. 134. 165. 155. 75. 8. 0. 638.

Western Regional Climate Center, wrcc@dri.edu