Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 09 2026 at 7:45 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 151.4 | 331.7 | 313.6 | 401.0 | 234.9 | 72.6 |
| 25% | 125.9 | 239.5 | 277.3 | 287.3 | 152.3 | 49.2 |
| 50% | 94.4 | 201.7 | 216.4 | 209.6 | 93.7 | 29.1 |
| 75% | 76.8 | 156.2 | 180.4 | 131.9 | 51.5 | 15.0 |
| 90% | 66.4 | 110.8 | 121.1 | 99.7 | 39.9 | 10.4 |
|
| Mean | 114.7 | 156.6 | 198.5 | 248.4 | 162.5 | 60.2 |
| %Mean | 82.3 | 128.8 | 109.0 | 84.4 | 57.7 | 48.3 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 24.9 | 14.6 | 35.1 | 54.7 | 178.6 | 202.7 |
| 25% | 14.8 | 7.5 | 8.2 | 18.2 | 62.5 | 104.0 |
| 50% | 9.7 | 5.5 | 5.1 | 10.0 | 21.2 | 45.0 |
| 75% | 6.6 | 4.1 | 3.8 | 5.2 | 9.5 | 18.2 |
| 90% | 5.0 | 3.3 | 3.0 | 3.9 | 5.2 | 13.1 |
|
| Mean | 20.5 | 14.5 | 19.6 | 27.5 | 63.4 | 100.1 |
| %Mean | 47.3 | 37.9 | 26.0 | 36.4 | 33.4 | 45.0 |
| 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. |
