Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 14 2026 at 9:18 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 113.6 | 177.5 | 82.2 | 55.7 | 22.6 | 8.3 |
| 25% | 91.8 | 114.4 | 63.2 | 32.8 | 12.6 | 3.2 |
| 50% | 69.1 | 77.9 | 36.6 | 23.0 | 8.9 | 1.6 |
| 75% | 56.6 | 46.9 | 26.9 | 15.3 | 5.1 | 0.7 |
| 90% | 39.2 | 35.3 | 20.9 | 9.8 | 2.7 | 0.2 |
|
| Mean | 85.6 | 91.9 | 47.7 | 31.6 | 12.3 | 3.6 |
| %Mean | 80.7 | 84.8 | 76.7 | 72.8 | 72.4 | 44.4 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 2.1 | 2.5 | 8.6 | 43.5 | 145.6 | 179.3 |
| 25% | 0.7 | 0.7 | 3.2 | 20.1 | 92.9 | 106.1 |
| 50% | 0.4 | 0.2 | 0.9 | 4.6 | 31.4 | 45.0 |
| 75% | 0.1 | 0.1 | 0.2 | 1.4 | 10.7 | 21.2 |
| 90% | 0.0 | 0.0 | 0.0 | 0.5 | 2.6 | 8.9 |
|
| Mean | 2.1 | 2.5 | 6.5 | 22.1 | 71.6 | 90.4 |
| %Mean | 19.0 | 8.0 | 13.8 | 20.8 | 43.9 | 49.8 |
| 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. |
