Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 04 2026 at 7:50 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 99.4 | 231.8 | 165.0 | 139.4 | 49.1 | 14.1 |
| 25% | 56.9 | 144.6 | 101.9 | 104.9 | 35.0 | 10.7 |
| 50% | 40.4 | 96.2 | 79.1 | 56.3 | 17.1 | 6.3 |
| 75% | 27.4 | 72.1 | 59.4 | 28.9 | 9.7 | 3.9 |
| 90% | 23.8 | 36.9 | 31.9 | 17.8 | 6.0 | 2.4 |
|
| Mean | 87.5 | 107.4 | 98.1 | 88.7 | 41.2 | 10.9 |
| %Mean | 46.2 | 89.6 | 80.6 | 63.5 | 41.5 | 57.8 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 6.4 | 4.6 | 14.5 | 39.9 | 207.4 | 169.3 |
| 25% | 5.3 | 3.8 | 4.9 | 18.9 | 68.4 | 93.4 |
| 50% | 3.1 | 2.3 | 3.3 | 6.6 | 22.9 | 54.4 |
| 75% | 1.8 | 1.5 | 2.0 | 3.6 | 9.2 | 15.2 |
| 90% | 1.0 | 0.7 | 1.3 | 2.5 | 4.6 | 7.7 |
|
| Mean | 4.0 | 3.1 | 6.3 | 18.8 | 56.0 | 74.4 |
| %Mean | 77.5 | 74.2 | 52.4 | 35.1 | 40.9 | 73.1 |
| 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. |
