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% | 0.3 | 1.2 | 3.3 | 10.7 | 7.4 | 11.1 |
| 25% | 0.2 | 0.3 | 1.3 | 2.5 | 2.8 | 4.8 |
| 50% | 0.2 | 0.2 | 0.3 | 0.8 | 1.6 | 2.2 |
| 75% | 0.2 | 0.1 | 0.2 | 0.3 | 0.7 | 1.3 |
| 90% | 0.1 | 0.1 | 0.1 | 0.1 | 0.4 | 0.9 |
|
| Mean | 0.5 | 1.0 | 2.1 | 3.4 | 3.7 | 4.3 |
| %Mean | 40.0 | 20.0 | 14.3 | 23.5 | 43.2 | 51.2 |
| Prob | Mar | Apr | May | Jun | Jul | Aug |
| 10% | 16.4 | 21.1 | 34.9 | 24.5 | 7.0 | 3.3 |
| 25% | 11.2 | 17.7 | 27.6 | 14.1 | 4.7 | 2.3 |
| 50% | 6.1 | 11.3 | 14.0 | 5.4 | 2.6 | 1.3 |
| 75% | 4.0 | 7.0 | 6.2 | 2.3 | 1.1 | 0.5 |
| 90% | 2.7 | 4.9 | 2.4 | 0.9 | 0.5 | 0.2 |
|
| Mean | 7.5 | 12.5 | 15.6 | 9.4 | 3.2 | 0.8 |
| %Mean | 81.3 | 90.4 | 89.7 | 57.4 | 81.2 | 162.5 |
| 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. |
