Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 08 2026 at 8:11 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 154.2 | 325.1 | 311.4 | 383.5 | 227.6 | 71.1 |
| 25% | 131.5 | 239.9 | 265.6 | 282.8 | 144.9 | 45.7 |
| 50% | 102.9 | 202.6 | 214.2 | 207.9 | 92.6 | 28.1 |
| 75% | 79.0 | 151.8 | 174.4 | 128.8 | 51.4 | 15.0 |
| 90% | 67.8 | 104.4 | 124.4 | 89.9 | 39.3 | 9.7 |
|
| Mean | 114.7 | 156.6 | 198.5 | 248.4 | 162.5 | 60.2 |
| %Mean | 89.7 | 129.4 | 107.9 | 83.7 | 57.0 | 46.7 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 24.6 | 15.2 | 35.1 | 54.7 | 178.3 | 202.6 |
| 25% | 14.8 | 7.4 | 8.2 | 18.2 | 62.4 | 104.0 |
| 50% | 9.6 | 5.5 | 5.1 | 9.9 | 21.1 | 44.8 |
| 75% | 6.6 | 4.1 | 3.8 | 5.2 | 9.5 | 18.2 |
| 90% | 4.8 | 3.2 | 3.0 | 3.8 | 5.1 | 13.1 |
|
| Mean | 20.5 | 14.5 | 19.6 | 27.5 | 63.4 | 100.1 |
| %Mean | 46.8 | 37.9 | 26.0 | 36.0 | 33.3 | 44.8 |
| 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. |
