California

As of October 8, 2026, the reservoirs we track across California that report live levels hold roughly 20,047 hm³ of water — about 59.2% of their combined capacity. Taken together, California's reservoirs are within their normal operating range.

Across the region, 4 reservoirs are at critically low levels and 4 are low. LAKE MC SWAIN is the fullest at 103.9%, while BEAR is the lowest at 0.0%.

Over the most recent week on record, 6 reservoirs fell across California.

Storage figures for California come from USGS · USACE · BOR · CDEC; the most recent reading is from October 8, 2026. Each reservoir below links to its own page with full history and seasonal context.