Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 07 2026 at 9:01 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 21.5 | 46.5 | 63.1 | 107.6 | 97.1 | 38.1 |
| 25% | 17.7 | 38.3 | 57.3 | 83.4 | 64.4 | 18.5 |
| 50% | 14.8 | 28.9 | 46.2 | 66.2 | 34.0 | 8.2 |
| 75% | 13.5 | 23.7 | 37.4 | 50.2 | 20.7 | 5.3 |
| 90% | 12.0 | 20.8 | 31.6 | 38.9 | 16.4 | 3.8 |
|
| Mean | 20.5 | 32.1 | 52.8 | 79.1 | 57.9 | 20.7 |
| %Mean | 72.2 | 90.0 | 87.5 | 83.7 | 58.7 | 39.6 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 7.1 | 6.3 | 13.1 | 26.3 | 39.6 | 28.4 |
| 25% | 4.4 | 2.9 | 7.1 | 11.2 | 16.8 | 21.0 |
| 50% | 2.8 | 2.1 | 2.8 | 7.0 | 8.9 | 12.3 |
| 75% | 2.1 | 1.4 | 2.0 | 3.5 | 5.2 | 6.9 |
| 90% | 1.6 | 1.0 | 1.5 | 2.2 | 2.6 | 4.9 |
|
| Mean | 2.3 | 1.8 | 8.0 | 10.4 | 15.7 | 20.8 |
| %Mean | 121.7 | 116.7 | 35.0 | 67.3 | 56.7 | 59.1 |
| 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. |
