Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 07 2026 at 8:25 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 39.8 | 67.8 | 41.4 | 41.5 | 29.8 | 15.3 |
| 25% | 31.3 | 47.4 | 31.8 | 33.2 | 24.7 | 11.7 |
| 50% | 22.3 | 30.3 | 24.9 | 27.6 | 17.0 | 9.3 |
| 75% | 15.6 | 21.9 | 20.1 | 21.9 | 12.2 | 7.8 |
| 90% | 13.4 | 18.2 | 18.7 | 18.6 | 9.7 | 7.2 |
|
| Mean | 27.6 | 30.9 | 25.3 | 25.7 | 18.3 | 10.9 |
| %Mean | 80.8 | 98.1 | 98.4 | 107.4 | 92.9 | 85.3 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 8.9 | 8.0 | 12.0 | 23.1 | 58.4 | 55.9 |
| 25% | 8.1 | 7.4 | 7.8 | 12.7 | 27.9 | 33.5 |
| 50% | 7.4 | 6.8 | 7.2 | 7.6 | 15.9 | 20.4 |
| 75% | 6.7 | 6.1 | 6.4 | 6.8 | 9.0 | 12.6 |
| 90% | 6.2 | 5.8 | 5.9 | 5.9 | 7.0 | 8.9 |
|
| Mean | 7.3 | 6.4 | 7.5 | 11.1 | 22.6 | 26.2 |
| %Mean | 101.4 | 106.2 | 96.0 | 68.5 | 70.4 | 77.9 |
| Note 1: %Mean is the "Median forecast monthly value (50%)" divided by the "monthly mean" (displayed as a %) |
| Note 2: For current month, graphic represents remaining forecast only, text represents observed + remaining forecast. |
