Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Jun 07 2026 at 7:18 AM PDT |
| Prob | Jun* | Jul | Aug | Sep | Oct | Nov |
| 10% | 126.3 | 49.6 | 16.4 | 13.0 | 58.2 | 114.5 |
| 25% | 121.5 | 38.1 | 14.4 | 8.7 | 17.6 | 42.6 |
| 50% | 116.8 | 36.0 | 13.5 | 7.0 | 6.8 | 24.1 |
| 75% | 114.9 | 33.5 | 13.3 | 6.6 | 5.4 | 7.8 |
| 90% | 110.7 | 31.9 | 12.9 | 6.4 | 4.5 | 5.2 |
|
| Mean | 330.5 | 128.9 | 29.6 | 14.3 | 26.1 | 46.7 |
| %Mean | 35.3 | 27.9 | 45.6 | 49.0 | 26.1 | 51.6 |
| Prob | Dec | Jan | Feb | Mar | Apr | May |
| 10% | 248.5 | 294.5 | 358.5 | 485.2 | 449.1 | 773.4 |
| 25% | 91.3 | 180.1 | 187.4 | 295.5 | 363.6 | 579.2 |
| 50% | 43.6 | 79.4 | 99.3 | 223.6 | 282.2 | 423.8 |
| 75% | 15.6 | 35.5 | 63.6 | 125.2 | 211.7 | 269.3 |
| 90% | 7.9 | 20.0 | 33.9 | 102.0 | 173.2 | 213.9 |
|
| Mean | 95.7 | 149.9 | 165.0 | 236.8 | 302.6 | 437.3 |
| %Mean | 45.6 | 53.0 | 60.2 | 94.4 | 93.3 | 96.9 |
| 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. |
