Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Jul 04 2026 at 7:59 AM PDT |
| Prob | Jul* | Aug | Sep | Oct | Nov | Dec |
| 10% | 1.8 | 0.9 | 1.1 | 3.0 | 6.1 | 23.4 |
| 25% | 1.7 | 0.6 | 0.7 | 1.1 | 2.7 | 5.0 |
| 50% | 1.6 | 0.5 | 0.5 | 0.7 | 1.2 | 2.4 |
| 75% | 1.6 | 0.4 | 0.4 | 0.6 | 0.8 | 1.2 |
| 90% | 1.5 | 0.4 | 0.4 | 0.4 | 0.6 | 0.7 |
|
| Mean | 5.2 | 1.2 | 0.9 | 2.0 | 4.0 | 6.1 |
| %Mean | 30.8 | 41.7 | 55.6 | 35.0 | 30.0 | 39.3 |
| Prob | Jan | Feb | Mar | Apr | May | Jun |
| 10% | 16.5 | 24.3 | 31.6 | 38.5 | 73.6 | 50.2 |
| 25% | 6.1 | 9.2 | 20.0 | 32.7 | 52.4 | 28.7 |
| 50% | 3.5 | 4.9 | 10.8 | 22.5 | 31.7 | 13.6 |
| 75% | 1.6 | 2.7 | 6.4 | 15.2 | 18.7 | 5.7 |
| 90% | 0.9 | 2.0 | 4.8 | 10.2 | 8.6 | 3.5 |
|
| Mean | 7.1 | 8.2 | 14.2 | 24.9 | 32.8 | 19.0 |
| %Mean | 49.3 | 59.8 | 76.1 | 90.4 | 96.6 | 71.6 |
| 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. |
