Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 11 2026 at 8:45 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 213.3 | 481.5 | 442.4 | 664.9 | 554.1 | 218.0 |
| 25% | 171.9 | 343.5 | 370.4 | 526.3 | 395.5 | 110.3 |
| 50% | 132.4 | 252.0 | 324.7 | 399.3 | 222.6 | 51.3 |
| 75% | 98.8 | 201.0 | 282.5 | 295.8 | 125.0 | 33.2 |
| 90% | 82.5 | 152.3 | 198.0 | 257.6 | 92.2 | 24.9 |
|
| Mean | 165.0 | 236.8 | 302.6 | 437.3 | 330.5 | 128.9 |
| %Mean | 80.2 | 106.4 | 107.3 | 91.3 | 67.4 | 39.8 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 52.7 | 28.1 | 61.9 | 117.1 | 254.3 | 296.3 |
| 25% | 30.5 | 15.8 | 22.4 | 44.9 | 92.0 | 179.2 |
| 50% | 18.5 | 11.2 | 11.7 | 26.2 | 45.2 | 81.2 |
| 75% | 12.8 | 7.5 | 6.8 | 12.5 | 18.9 | 36.8 |
| 90% | 10.9 | 5.8 | 5.4 | 6.6 | 10.0 | 21.3 |
|
| Mean | 29.6 | 14.3 | 26.1 | 46.7 | 95.7 | 149.9 |
| %Mean | 62.5 | 78.3 | 44.8 | 56.1 | 47.2 | 54.2 |
| 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. |
