Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 11 2026 at 8:47 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 105.8 | 175.4 | 80.9 | 54.6 | 22.0 | 8.1 |
| 25% | 83.3 | 112.8 | 61.3 | 32.1 | 12.0 | 3.0 |
| 50% | 60.1 | 75.8 | 34.7 | 21.6 | 8.6 | 1.5 |
| 75% | 43.9 | 45.2 | 24.5 | 14.6 | 4.6 | 0.7 |
| 90% | 23.7 | 30.5 | 19.9 | 9.4 | 2.2 | 0.2 |
|
| Mean | 85.6 | 91.9 | 47.7 | 31.6 | 12.3 | 3.6 |
| %Mean | 70.2 | 82.5 | 72.7 | 68.4 | 69.9 | 41.7 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 2.2 | 2.3 | 8.5 | 43.3 | 145.4 | 179.2 |
| 25% | 0.6 | 0.6 | 3.1 | 20.0 | 92.7 | 106.0 |
| 50% | 0.3 | 0.2 | 0.9 | 4.5 | 31.2 | 44.9 |
| 75% | 0.1 | 0.1 | 0.2 | 1.3 | 10.5 | 21.2 |
| 90% | 0.0 | 0.0 | 0.0 | 0.5 | 2.6 | 8.8 |
|
| Mean | 2.1 | 2.5 | 6.5 | 22.1 | 71.6 | 90.4 |
| %Mean | 14.3 | 8.0 | 13.8 | 20.4 | 43.6 | 49.7 |
| 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. |
