Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 14 2026 at 9:18 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 145.4 | 356.1 | 340.4 | 418.3 | 262.7 | 80.8 |
| 25% | 124.9 | 255.0 | 289.8 | 311.1 | 164.1 | 57.3 |
| 50% | 111.6 | 205.7 | 246.8 | 244.4 | 109.3 | 31.7 |
| 75% | 89.9 | 172.9 | 206.4 | 149.2 | 60.1 | 18.4 |
| 90% | 76.0 | 138.6 | 159.7 | 120.1 | 51.7 | 14.5 |
|
| Mean | 114.7 | 156.6 | 198.5 | 248.4 | 162.5 | 60.2 |
| %Mean | 97.3 | 131.4 | 124.3 | 98.4 | 67.3 | 52.7 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 26.4 | 16.1 | 36.1 | 55.2 | 179.7 | 203.1 |
| 25% | 16.7 | 7.7 | 8.6 | 18.6 | 63.0 | 104.7 |
| 50% | 9.8 | 6.2 | 5.4 | 10.4 | 21.4 | 45.6 |
| 75% | 7.2 | 4.5 | 4.1 | 5.4 | 9.6 | 18.4 |
| 90% | 6.1 | 3.8 | 3.5 | 4.0 | 5.2 | 13.2 |
|
| Mean | 20.5 | 14.5 | 19.6 | 27.5 | 63.4 | 100.1 |
| %Mean | 47.8 | 42.8 | 27.6 | 37.8 | 33.8 | 45.6 |
| 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. |
