Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 16 2026 at 9:38 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 3506.5 | 7470.1 | 5906.7 | 6141.8 | 3693.0 | 1580.5 |
| 25% | 3002.7 | 5322.7 | 4367.9 | 4683.4 | 2552.5 | 1111.3 |
| 50% | 2496.2 | 4351.1 | 3542.3 | 3602.6 | 1737.2 | 759.8 |
| 75% | 1979.3 | 3328.8 | 3160.3 | 2587.1 | 1274.8 | 620.5 |
| 90% | 1856.1 | 2452.3 | 2312.0 | 1928.8 | 968.0 | 503.4 |
|
| Mean | 3028.7 | 3655.6 | 3281.1 | 3324.7 | 2116.0 | 910.6 |
| %Mean | 82.4 | 119.0 | 108.0 | 108.4 | 82.1 | 83.4 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 798.5 | 577.8 | 885.0 | 1594.8 | 5426.4 | 6084.9 |
| 25% | 603.5 | 480.4 | 525.2 | 1032.9 | 2839.1 | 3106.1 |
| 50% | 502.9 | 428.3 | 443.2 | 564.2 | 1228.6 | 2053.1 |
| 75% | 433.3 | 364.9 | 386.5 | 455.4 | 664.0 | 902.3 |
| 90% | 380.9 | 340.6 | 334.0 | 384.8 | 452.8 | 736.9 |
|
| Mean | 479.4 | 432.6 | 549.6 | 905.8 | 1988.3 | 2636.9 |
| %Mean | 104.9 | 99.0 | 80.6 | 62.3 | 61.8 | 77.9 |
| 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. |
