Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Apr 12 2026 at 9:06 AM PDT |
| Prob | Apr* | May | Jun | Jul | Aug | Sep |
| 10% | 156.8 | 168.4 | 77.3 | 16.3 | 5.0 | 2.7 |
| 25% | 147.7 | 113.5 | 49.5 | 13.0 | 3.4 | 2.2 |
| 50% | 139.4 | 102.0 | 33.1 | 8.7 | 2.4 | 1.4 |
| 75% | 132.5 | 90.6 | 29.4 | 7.4 | 2.2 | 1.3 |
| 90% | 126.0 | 82.5 | 26.6 | 6.4 | 1.8 | 1.2 |
|
| Mean | 132.0 | 172.5 | 106.0 | 29.8 | 6.4 | 4.2 |
| %Mean | 105.6 | 59.1 | 31.2 | 29.2 | 37.5 | 33.3 |
| Prob | Oct | Nov | Dec | Jan | Feb | Mar |
| 10% | 22.4 | 29.6 | 108.3 | 115.5 | 145.3 | 200.7 |
| 25% | 3.3 | 13.3 | 33.6 | 57.0 | 75.6 | 130.3 |
| 50% | 2.0 | 4.9 | 17.9 | 27.0 | 37.0 | 78.9 |
| 75% | 1.7 | 2.5 | 7.2 | 14.5 | 20.8 | 51.3 |
| 90% | 1.6 | 1.9 | 3.3 | 10.6 | 15.1 | 37.3 |
|
| Mean | 9.0 | 17.4 | 39.4 | 62.5 | 72.9 | 101.0 |
| %Mean | 22.2 | 28.2 | 45.4 | 43.2 | 50.8 | 78.1 |
| 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. |
