Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 07 2026 at 8:50 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 109.8 | 243.5 | 169.3 | 151.5 | 63.2 | 15.7 |
| 25% | 70.5 | 152.2 | 109.3 | 113.3 | 44.9 | 11.3 |
| 50% | 52.0 | 101.2 | 85.4 | 64.2 | 18.0 | 6.7 |
| 75% | 32.2 | 79.5 | 67.0 | 36.2 | 11.0 | 4.7 |
| 90% | 25.0 | 44.1 | 37.7 | 22.7 | 7.5 | 2.9 |
|
| Mean | 87.5 | 107.4 | 98.1 | 88.7 | 41.2 | 10.9 |
| %Mean | 59.4 | 94.2 | 87.1 | 72.4 | 43.7 | 61.5 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 7.1 | 5.1 | 14.7 | 40.0 | 207.7 | 169.6 |
| 25% | 5.6 | 4.0 | 5.2 | 19.2 | 68.7 | 93.8 |
| 50% | 3.4 | 2.5 | 3.6 | 6.9 | 23.2 | 54.5 |
| 75% | 2.3 | 1.7 | 2.3 | 3.8 | 9.4 | 15.2 |
| 90% | 1.4 | 1.0 | 1.5 | 2.7 | 4.8 | 7.9 |
|
| Mean | 4.0 | 3.1 | 6.3 | 18.8 | 56.0 | 74.4 |
| %Mean | 85.0 | 80.6 | 57.1 | 36.7 | 41.4 | 73.3 |
| 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. |
