Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 17 2026 at 8:25 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 19.4 | 63.9 | 72.3 | 130.3 | 79.6 | 17.3 |
| 25% | 17.5 | 38.0 | 63.7 | 95.4 | 44.3 | 7.4 |
| 50% | 14.9 | 31.1 | 52.2 | 78.0 | 23.1 | 4.7 |
| 75% | 12.7 | 21.4 | 43.2 | 49.8 | 12.5 | 3.1 |
| 90% | 11.1 | 14.9 | 34.6 | 38.4 | 8.9 | 2.8 |
|
| Mean | 23.3 | 33.1 | 53.0 | 76.0 | 47.5 | 12.8 |
| %Mean | 63.9 | 94.0 | 98.5 | 102.6 | 48.6 | 36.7 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 3.4 | 3.3 | 15.3 | 33.4 | 70.9 | 35.7 |
| 25% | 2.5 | 2.0 | 4.3 | 14.1 | 21.9 | 25.8 |
| 50% | 1.8 | 1.4 | 2.2 | 5.2 | 8.4 | 12.2 |
| 75% | 1.4 | 1.0 | 1.4 | 2.1 | 3.5 | 5.3 |
| 90% | 1.2 | 0.7 | 0.8 | 1.4 | 1.2 | 2.3 |
|
| Mean | 2.2 | 1.5 | 4.1 | 11.5 | 21.7 | 20.4 |
| %Mean | 81.8 | 93.3 | 53.7 | 45.2 | 38.7 | 59.8 |
| 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. |
