Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Sep 02 2026 at 8:01 AM PDT |
| Prob | Sep* | Oct | Nov | Dec | Jan | Feb |
| 10% | 0.0 | 0.2 | 0.6 | 2.6 | 1.8 | 3.2 |
| 25% | 0.0 | 0.1 | 0.2 | 0.6 | 1.0 | 1.5 |
| 50% | 0.0 | 0.1 | 0.1 | 0.2 | 0.5 | 0.7 |
| 75% | 0.0 | 0.0 | 0.1 | 0.1 | 0.2 | 0.5 |
| 90% | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.3 |
|
| Mean | 0.4 | 0.5 | 0.8 | 1.4 | 1.6 | 2.0 |
| %Mean | 0.0 | 20.0 | 12.5 | 14.3 | 31.2 | 35.0 |
| Prob | Mar | Apr | May | Jun | Jul | Aug |
| 10% | 4.9 | 6.7 | 9.6 | 4.3 | 1.0 | 0.8 |
| 25% | 3.1 | 5.0 | 5.9 | 1.9 | 0.8 | 0.6 |
| 50% | 1.4 | 2.4 | 2.0 | 0.6 | 0.4 | 0.3 |
| 75% | 1.0 | 1.1 | 0.6 | 0.3 | 0.1 | 0.1 |
| 90% | 0.7 | 0.5 | 0.2 | 0.1 | 0.1 | 0.0 |
|
| Mean | 3.3 | 4.0 | 3.3 | 1.4 | 0.6 | 0.4 |
| %Mean | 42.4 | 60.0 | 60.6 | 42.9 | 66.7 | 75.0 |
| 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. |
