Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 06 2026 at 7:49 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 187.4 | 443.1 | 423.1 | 651.8 | 526.2 | 204.7 |
| 25% | 151.2 | 312.4 | 356.5 | 505.3 | 360.5 | 107.6 |
| 50% | 100.1 | 243.9 | 306.1 | 381.1 | 181.6 | 49.7 |
| 75% | 83.4 | 163.8 | 239.7 | 277.9 | 109.2 | 28.5 |
| 90% | 69.2 | 123.5 | 169.3 | 202.2 | 82.1 | 22.0 |
|
| Mean | 165.0 | 236.8 | 302.6 | 437.3 | 330.5 | 128.9 |
| %Mean | 60.7 | 103.0 | 101.2 | 87.1 | 54.9 | 38.6 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 47.8 | 27.4 | 60.7 | 114.9 | 252.8 | 295.8 |
| 25% | 28.3 | 13.5 | 21.4 | 43.6 | 91.0 | 177.9 |
| 50% | 16.6 | 9.9 | 11.4 | 25.2 | 44.7 | 80.9 |
| 75% | 11.6 | 6.7 | 6.4 | 11.8 | 18.6 | 36.8 |
| 90% | 9.6 | 5.3 | 4.8 | 6.1 | 9.2 | 20.9 |
|
| Mean | 29.6 | 14.3 | 26.1 | 46.7 | 95.7 | 149.9 |
| %Mean | 56.1 | 69.2 | 43.7 | 54.0 | 46.7 | 54.0 |
| 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. |
