Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 07 2026 at 9:01 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 201.7 | 467.7 | 433.7 | 659.2 | 532.8 | 207.7 |
| 25% | 154.5 | 310.9 | 360.2 | 519.5 | 373.4 | 106.0 |
| 50% | 112.3 | 257.2 | 318.9 | 388.8 | 205.6 | 55.1 |
| 75% | 88.4 | 185.2 | 265.9 | 293.5 | 114.4 | 31.0 |
| 90% | 72.5 | 125.9 | 183.8 | 223.8 | 92.4 | 23.6 |
|
| Mean | 165.0 | 236.8 | 302.6 | 437.3 | 330.5 | 128.9 |
| %Mean | 68.1 | 108.6 | 105.4 | 88.9 | 62.2 | 42.7 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 48.7 | 27.9 | 61.1 | 115.5 | 253.2 | 296.1 |
| 25% | 29.1 | 13.4 | 21.8 | 44.0 | 91.3 | 178.3 |
| 50% | 18.1 | 10.5 | 11.6 | 25.6 | 44.9 | 81.0 |
| 75% | 12.4 | 7.0 | 6.7 | 12.0 | 18.8 | 36.8 |
| 90% | 10.3 | 5.6 | 5.0 | 6.4 | 9.5 | 21.0 |
|
| Mean | 29.6 | 14.3 | 26.1 | 46.7 | 95.7 | 149.9 |
| %Mean | 61.1 | 73.4 | 44.4 | 54.8 | 46.9 | 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. |
