San Francisco, California – December storms have delivered widespread rainfall across the Bay Area, pushing precipitation totals near or above normal levels as the region heads into the final days of 2025.
According to the National Weather Service San Francisco Bay Area/Monterey, San Francisco recorded 8.39 inches of rain from October 1 through December 29, placing the city at 105 percent of normal for the water year to date. Nearby locations also reported substantial totals, reflecting an active start to the rainy season.
Rainfall amounts varied significantly by location. Santa Rosa measured 12.31 inches, while Oakland Airport recorded 7.11 inches. San Jose Airport received 5.08 inches, and Salinas Airport measured 4.94 inches over the same period. These totals generally range from 107 to 129 percent of normal, indicating near- to above-average precipitation across much of the region.
The observed precipitation map for December shows heavier totals across coastal ranges and interior valleys, while some lower elevations saw more moderate rainfall. Despite the variability, forecasters note that the overall pattern has helped improve soil moisture and reservoir inflows compared to drier starts seen in recent years.
The National Weather Service also noted that rain is expected to return just before 2026 begins, signaling that active weather may continue into early January. While no specific impacts were highlighted in the briefing, additional rainfall could affect travel and outdoor plans as the new year approaches.
For commuters and holiday travelers, recent rainfall has already contributed to slick road conditions during storms, and similar impacts may return with upcoming systems. Residents are encouraged to remain aware of changing conditions and monitor updated forecasts.
Forecasters will continue tracking storm systems and water-year progress as California’s rainy season develops.
