Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Jul 16 2026 at 7:46 AM PDT |
| Prob | Jul* | Aug | Sep | Oct | Nov | Dec |
| 10% | 15.9 | 13.2 | 13.1 | 24.8 | 68.2 | 230.6 |
| 25% | 15.7 | 12.8 | 12.2 | 14.1 | 41.6 | 122.0 |
| 50% | 15.7 | 12.7 | 11.9 | 12.4 | 17.3 | 41.5 |
| 75% | 15.7 | 12.6 | 11.6 | 11.8 | 11.9 | 21.8 |
| 90% | 15.7 | 12.6 | 11.5 | 11.4 | 11.2 | 13.2 |
|
| Mean | 21.5 | 14.9 | 13.4 | 18.5 | 33.3 | 80.7 |
| %Mean | 73.0 | 85.2 | 88.8 | 67.0 | 52.0 | 51.4 |
| Prob | Jan | Feb | Mar | Apr | May | Jun |
| 10% | 246.6 | 274.1 | 282.0 | 206.0 | 215.2 | 117.1 |
| 25% | 159.0 | 184.6 | 192.5 | 158.7 | 159.2 | 57.7 |
| 50% | 86.2 | 106.2 | 149.6 | 115.7 | 82.7 | 32.3 |
| 75% | 40.4 | 45.0 | 80.9 | 65.5 | 51.5 | 20.2 |
| 90% | 21.9 | 32.5 | 50.0 | 43.2 | 23.1 | 15.1 |
|
| Mean | 111.4 | 129.8 | 150.2 | 117.2 | 99.7 | 49.2 |
| %Mean | 77.4 | 81.8 | 99.6 | 98.7 | 82.9 | 65.7 |
| 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. |
