Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Aug 07 2026 at 7:51 AM PDT |
| Prob | Aug* | Sep | Oct | Nov | Dec | Jan |
| 10% | 0.2 | 0.1 | 0.3 | 1.2 | 18.6 | 49.0 |
| 25% | 0.2 | 0.1 | 0.2 | 0.3 | 5.7 | 14.3 |
| 50% | 0.2 | 0.1 | 0.1 | 0.1 | 0.4 | 3.8 |
| 75% | 0.2 | 0.0 | 0.0 | 0.1 | 0.1 | 0.7 |
| 90% | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 |
|
| Mean | 0.6 | 0.4 | 0.6 | 1.5 | 5.3 | 14.5 |
| %Mean | 33.3 | 25.0 | 16.7 | 6.7 | 7.5 | 26.2 |
| Prob | Feb | Mar | Apr | May | Jun | Jul |
| 10% | 51.6 | 62.7 | 28.6 | 15.4 | 8.2 | 4.8 |
| 25% | 25.2 | 33.4 | 15.6 | 8.0 | 4.4 | 2.5 |
| 50% | 6.9 | 10.8 | 5.3 | 2.8 | 1.5 | 0.8 |
| 75% | 2.3 | 3.4 | 1.8 | 1.0 | 0.4 | 0.1 |
| 90% | 0.2 | 1.0 | 1.1 | 0.6 | 0.2 | 0.0 |
|
| Mean | 16.4 | 21.4 | 12.2 | 6.6 | 2.9 | 1.1 |
| %Mean | 42.1 | 50.5 | 43.4 | 42.4 | 51.7 | 72.7 |
| 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. |
