Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Aug 08 2026 at 7:28 AM PDT |
| Prob | Aug* | Sep | Oct | Nov | Dec | Jan |
| 10% | 23.3 | 12.7 | 23.8 | 38.4 | 125.3 | 153.5 |
| 25% | 22.5 | 11.1 | 12.7 | 21.2 | 49.9 | 88.4 |
| 50% | 22.3 | 10.5 | 8.6 | 15.6 | 20.9 | 42.9 |
| 75% | 22.1 | 10.1 | 7.2 | 10.6 | 13.8 | 17.3 |
| 90% | 22.1 | 10.0 | 6.3 | 8.5 | 10.3 | 13.0 |
|
| Mean | 53.9 | 26.5 | 24.4 | 30.9 | 48.9 | 87.7 |
| %Mean | 41.4 | 39.6 | 35.2 | 50.5 | 42.7 | 48.9 |
| Prob | Feb | Mar | Apr | May | Jun | Jul |
| 10% | 162.9 | 301.4 | 348.4 | 671.9 | 844.8 | 544.2 |
| 25% | 113.0 | 186.9 | 284.3 | 538.5 | 642.7 | 280.5 |
| 50% | 63.7 | 116.8 | 229.4 | 388.4 | 243.4 | 78.0 |
| 75% | 29.7 | 76.6 | 169.7 | 306.8 | 135.4 | 48.9 |
| 90% | 17.9 | 54.4 | 135.6 | 169.3 | 65.0 | 24.0 |
|
| Mean | 92.6 | 146.3 | 245.8 | 431.1 | 373.3 | 173.6 |
| %Mean | 68.8 | 79.8 | 93.3 | 90.1 | 65.2 | 44.9 |
| 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. |
