Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Jun 08 2026 at 7:20 AM PDT |
| Prob | Jun* | Jul | Aug | Sep | Oct | Nov |
| 10% | 5.3 | 3.3 | 2.0 | 2.5 | 7.2 | 40.4 |
| 25% | 4.8 | 3.1 | 1.8 | 1.6 | 4.3 | 18.2 |
| 50% | 4.7 | 3.0 | 1.7 | 1.3 | 2.3 | 10.9 |
| 75% | 4.7 | 3.0 | 1.7 | 1.2 | 1.4 | 4.1 |
| 90% | 4.6 | 3.0 | 1.7 | 1.2 | 1.2 | 2.6 |
|
| Mean | 14.4 | 5.8 | 3.5 | 2.9 | 4.9 | 14.8 |
| %Mean | 32.6 | 51.7 | 48.6 | 44.8 | 46.9 | 73.6 |
| Prob | Dec | Jan | Feb | Mar | Apr | May |
| 10% | 84.9 | 91.6 | 78.2 | 89.7 | 67.9 | 48.9 |
| 25% | 55.4 | 55.1 | 54.9 | 59.6 | 49.3 | 42.5 |
| 50% | 25.2 | 39.0 | 33.2 | 42.2 | 38.1 | 23.8 |
| 75% | 13.7 | 25.4 | 24.8 | 33.7 | 23.2 | 15.6 |
| 90% | 8.5 | 15.8 | 17.4 | 22.0 | 19.2 | 9.7 |
|
| Mean | 37.6 | 44.7 | 42.0 | 48.6 | 40.5 | 31.0 |
| %Mean | 67.0 | 87.2 | 79.0 | 86.8 | 94.1 | 76.8 |
| 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. |
