Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 08 2026 at 7:34 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 144.5 | 272.3 | 205.6 | 167.1 | 81.6 | 26.9 |
| 25% | 105.1 | 199.3 | 160.5 | 141.0 | 54.0 | 22.9 |
| 50% | 78.1 | 152.5 | 112.2 | 73.2 | 26.5 | 18.4 |
| 75% | 63.8 | 96.0 | 67.0 | 47.7 | 22.7 | 14.9 |
| 90% | 49.6 | 51.8 | 54.9 | 33.1 | 17.7 | 12.6 |
|
| Mean | 129.8 | 150.2 | 117.2 | 99.7 | 49.2 | 21.5 |
| %Mean | 60.2 | 101.5 | 95.7 | 73.4 | 53.9 | 85.6 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 19.4 | 17.1 | 27.3 | 68.9 | 231.1 | 250.0 |
| 25% | 17.9 | 15.6 | 16.6 | 40.5 | 133.1 | 159.3 |
| 50% | 14.7 | 13.3 | 14.5 | 18.0 | 42.5 | 91.7 |
| 75% | 12.2 | 11.7 | 12.2 | 13.0 | 20.8 | 42.3 |
| 90% | 10.5 | 10.5 | 10.6 | 11.0 | 13.3 | 24.4 |
|
| Mean | 14.9 | 13.4 | 18.5 | 33.3 | 80.7 | 111.4 |
| %Mean | 98.7 | 99.3 | 78.4 | 54.1 | 52.7 | 82.3 |
| 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. |
