Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Jun 12 2026 at 8:02 AM PDT |
| Prob | Jun* | Jul | Aug | Sep | Oct | Nov |
| 10% | 23.8 | 6.8 | 2.0 | 2.1 | 21.3 | 29.0 |
| 25% | 21.9 | 5.7 | 1.7 | 1.4 | 2.8 | 13.0 |
| 50% | 21.6 | 5.5 | 1.6 | 1.2 | 1.8 | 4.7 |
| 75% | 21.5 | 5.4 | 1.5 | 1.0 | 1.6 | 2.3 |
| 90% | 21.5 | 5.4 | 1.5 | 1.0 | 1.2 | 1.7 |
|
| Mean | 106.0 | 29.8 | 6.4 | 4.2 | 9.0 | 17.4 |
| %Mean | 20.4 | 18.5 | 25.0 | 28.6 | 20.0 | 27.0 |
| Prob | Dec | Jan | Feb | Mar | Apr | May |
| 10% | 101.9 | 115.5 | 141.2 | 196.4 | 197.7 | 325.8 |
| 25% | 33.8 | 56.0 | 75.4 | 128.4 | 154.5 | 231.8 |
| 50% | 17.6 | 26.7 | 36.4 | 76.7 | 110.9 | 152.4 |
| 75% | 7.0 | 14.3 | 20.5 | 49.7 | 84.8 | 98.9 |
| 90% | 3.1 | 10.2 | 14.7 | 36.6 | 63.3 | 61.3 |
|
| Mean | 39.4 | 62.5 | 72.9 | 101.0 | 132.0 | 172.5 |
| %Mean | 44.7 | 42.7 | 49.9 | 75.9 | 84.0 | 88.3 |
| 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. |
