The California State Climate Office collects and interprets climate data for California, and disseminates climate data and information through various means including this portal. The California State Climate Office is housed in the California Department of Water Resources' Division of Flood Management.
California also has the California Climate Data Archive at the Western Region Climate Center - a project sponsored by the the Western Region Climate Center, the California Department of Water Resources, the California Energy Commission and the Scripps Institute of Oceanography.
Daily Drought Information Summary - http://cdec.water.ca.gov/cgi-progs/reports/DROUGHTSUM
Daily Hydrologic Conditions Summary - http://cdec.water.ca.gov/floodER/hydro/
Department Drought Publications Page - http://www.water.ca.gov/waterconditions/publications.cfm
September Climate Notables
Fall Begins: September 22 7:29 pm PDT
8 Station Index
Max: 4.72 (1986)
Min: 0 inches (5 years)
Average: 0.9 inches
5 Station Index
Max: 5.07 inches (1959)
Min: 0 inches (10 years)
Average 0.7 inches
Average Max Temperature
San Francisco 73.4
Los Angeles 81.9
San Diego 75.7
Death Valley 106.2
In September 1972 the White Mountain 2 Cooperative Observer Site began 265 consecutive days with a minimum temperature below freezing.