Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Jun 08 2026 at 7:07 AM PDT |
| Prob | Jun* | Jul | Aug | Sep | Oct | Nov |
| 10% | 233.7 | 197.7 | 182.4 | 179.2 | 231.8 | 502.0 |
| 25% | 227.9 | 195.4 | 179.4 | 173.3 | 198.1 | 335.2 |
| 50% | 226.7 | 192.5 | 177.8 | 167.6 | 181.0 | 214.2 |
| 75% | 226.0 | 192.1 | 175.9 | 165.7 | 173.5 | 183.9 |
| 90% | 226.0 | 191.9 | 175.6 | 164.7 | 169.9 | 176.6 |
|
| Mean | 310.7 | 227.3 | 201.8 | 194.4 | 227.4 | 304.7 |
| %Mean | 73.0 | 84.7 | 88.1 | 86.2 | 79.6 | 70.3 |
| Prob | Dec | Jan | Feb | Mar | Apr | May |
| 10% | 1166.5 | 1454.6 | 1610.9 | 1502.7 | 1205.5 | 943.7 |
| 25% | 819.1 | 860.6 | 1110.2 | 1205.8 | 806.0 | 695.4 |
| 50% | 398.7 | 601.2 | 639.3 | 824.8 | 565.9 | 401.7 |
| 75% | 257.8 | 317.5 | 355.0 | 531.7 | 385.4 | 307.8 |
| 90% | 200.3 | 242.9 | 283.5 | 348.4 | 316.7 | 232.5 |
|
| Mean | 543.0 | 700.7 | 802.6 | 912.1 | 642.8 | 500.1 |
| %Mean | 73.4 | 85.8 | 79.7 | 90.4 | 88.0 | 80.3 |
| 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. |
