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% | 220.1 | 187.5 | 176.0 | 175.2 | 228.9 | 499.5 |
| 25% | 214.7 | 185.0 | 173.0 | 169.4 | 195.4 | 332.7 |
| 50% | 213.0 | 182.2 | 171.3 | 163.7 | 178.4 | 212.4 |
| 75% | 212.4 | 181.7 | 169.5 | 161.7 | 170.8 | 182.2 |
| 90% | 212.3 | 181.5 | 169.2 | 160.8 | 167.2 | 174.9 |
|
| Mean | 310.7 | 227.3 | 201.8 | 194.4 | 227.4 | 304.7 |
| %Mean | 68.6 | 80.2 | 84.9 | 84.2 | 78.5 | 69.7 |
| Prob | Dec | Jan | Feb | Mar | Apr | May |
| 10% | 1163.0 | 1454.4 | 1610.6 | 1502.3 | 1205.5 | 943.6 |
| 25% | 816.4 | 859.2 | 1109.9 | 1206.1 | 805.9 | 695.4 |
| 50% | 397.2 | 600.9 | 638.0 | 824.3 | 565.8 | 401.7 |
| 75% | 256.5 | 316.7 | 354.7 | 531.6 | 385.3 | 307.8 |
| 90% | 199.1 | 242.0 | 283.1 | 348.1 | 316.4 | 232.4 |
|
| Mean | 543.0 | 700.7 | 802.6 | 912.1 | 642.8 | 500.1 |
| %Mean | 73.1 | 85.8 | 79.5 | 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. |
