Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Jul 09 2026 at 8:23 AM PDT |
| Prob | Jul* | Aug | Sep | Oct | Nov | Dec |
| 10% | -13.3 | -27.4 | -28.9 | -3.8 | 25.8 | 103.6 |
| 25% | -15.6 | -32.2 | -37.5 | -27.4 | 1.6 | 47.6 |
| 50% | -18.1 | -36.2 | -43.2 | -41.6 | -21.9 | -0.6 |
| 75% | -19.0 | -37.2 | -45.7 | -48.4 | -31.8 | -22.5 |
| 90% | -19.2 | -37.4 | -46.1 | -53.0 | -41.4 | -33.7 |
|
| Mean | -14.4 | -43.0 | -44.5 | -28.9 | 0.4 | 29.1 |
| %Mean | 125.7 | 84.2 | 97.1 | 143.9 | -5475.0 | -2.1 |
| Prob | Jan | Feb | Mar | Apr | May | Jun |
| 10% | 71.5 | 77.3 | 98.1 | 89.5 | 144.0 | 135.6 |
| 25% | 37.8 | 57.9 | 76.8 | 59.8 | 94.0 | 81.7 |
| 50% | 3.8 | 20.9 | 30.2 | 32.4 | 62.4 | 15.0 |
| 75% | -15.9 | 1.8 | 12.6 | 19.9 | 26.0 | -3.7 |
| 90% | -23.4 | -9.8 | 1.3 | 9.0 | 8.8 | -9.5 |
|
| Mean | 37.1 | 43.7 | 43.2 | 43.5 | 66.2 | 34.1 |
| %Mean | 10.2 | 47.8 | 69.9 | 74.5 | 94.3 | 44.0 |
| 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. |
