Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Jul 16 2026 at 8:02 AM PDT |
| Prob | Jul* | Aug | Sep | Oct | Nov | Dec |
| 10% | 3.0 | 2.8 | 4.2 | 9.1 | 14.0 | 29.0 |
| 25% | 3.0 | 2.6 | 4.0 | 8.9 | 10.7 | 21.9 |
| 50% | 3.0 | 2.6 | 3.9 | 8.8 | 9.4 | 12.9 |
| 75% | 3.0 | 2.5 | 3.8 | 8.6 | 9.3 | 10.5 |
| 90% | 3.0 | 2.5 | 3.7 | 8.6 | 9.2 | 10.4 |
|
| Mean | 2.7 | 2.3 | 3.8 | 8.7 | 11.0 | 15.5 |
| %Mean | 111.1 | 113.0 | 102.6 | 101.1 | 85.5 | 83.2 |
| Prob | Jan | Feb | Mar | Apr | May | Jun |
| 10% | 26.8 | 28.6 | 32.9 | 22.6 | 24.8 | 17.1 |
| 25% | 21.4 | 22.5 | 23.1 | 15.9 | 14.3 | 11.3 |
| 50% | 14.9 | 13.1 | 15.7 | 8.7 | 7.2 | 4.3 |
| 75% | 9.8 | 9.8 | 12.4 | 6.1 | 4.2 | 1.6 |
| 90% | 8.4 | 8.5 | 10.0 | 4.3 | 1.8 | 0.2 |
|
| Mean | 17.5 | 17.2 | 17.7 | 10.3 | 8.2 | 5.4 |
| %Mean | 85.1 | 76.2 | 88.7 | 84.5 | 87.8 | 79.6 |
| 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. |
