Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 16 2026 at 8:55 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 98.8 | 328.4 | 273.8 | 353.9 | 178.0 | 47.9 |
| 25% | 81.8 | 211.2 | 209.2 | 253.4 | 98.6 | 25.6 |
| 50% | 65.2 | 163.0 | 173.7 | 193.7 | 59.0 | 17.4 |
| 75% | 59.7 | 125.9 | 148.6 | 114.2 | 35.8 | 13.4 |
| 90% | 52.6 | 95.3 | 123.2 | 80.0 | 22.9 | 10.3 |
|
| Mean | 118.9 | 155.9 | 172.1 | 171.3 | 86.8 | 23.9 |
| %Mean | 54.8 | 104.6 | 100.9 | 113.1 | 68.0 | 72.8 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 14.4 | 11.1 | 37.4 | 94.4 | 310.1 | 227.6 |
| 25% | 12.0 | 8.4 | 11.9 | 33.8 | 98.8 | 133.0 |
| 50% | 9.3 | 7.0 | 7.7 | 13.7 | 42.3 | 58.1 |
| 75% | 7.5 | 5.8 | 6.1 | 8.1 | 14.8 | 26.4 |
| 90% | 6.0 | 4.5 | 5.4 | 6.0 | 6.7 | 12.5 |
|
| Mean | 6.9 | 5.3 | 12.6 | 31.9 | 84.4 | 100.8 |
| %Mean | 134.8 | 132.1 | 61.1 | 42.9 | 50.1 | 57.6 |
| 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. |
