year rain sf sj 1965 18.9 4.3 4.2 1966 23.7 4.2 4.8 1967 26.2 4.6 5.3 1968 26.6 4.7 4.8 1969 39.6 4.1 5.5 1970 45.5 4.6 5.6 1971 26.7 3.7 5.4 1972 19.0 3.1 4.6 1973 30.6 3.4 5.1 1974 34.1 3.4 3.7 1975 23.7 2.1 2.7 1976 14.6 2.2 2.1 1977 7.6 2.0 2.5