Basins
Near normalSacramento basin
Reservoir storage across California
Data through Aug 12, 2026 · source last checked Aug 13, 2026 · page revised Aug 13, 2026
Cite
- Shasta Lake
- Whiskeytown Lake
About this data
- Source
- US Bureau of Reclamation RISE; California reservoirs via CA DWR CDEC
- Series
- Reservoir storage summed across the basin
- Geography
- Sacramento basin
- Unit
- acre-feet
- Calculation
- Daily reading
- Last observation
- Aug 12, 2026
- Update frequency
- Daily
Now 3.10M af, 5% below the 5-yr median.
Sacramento basin storage fell to 3.15M af, down 13.5% over the month. The basin runs 5% below its 5-year median and 4.9% below last year's level.
| Period | Current | Prior | Change |
|---|---|---|---|
| Week over week | 3.10M af | 3.21M af | -3.4% |
| Month over month | 3.10M af | 3.59M af | -13.7% |
| Year over year | 3.10M af | 3.27M af | -5.2% |
| vs 5-yr median | 3.10M af | 3.27M af | -5.2% |