Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 07 2026 at 8:25 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 797.9 | 1473.7 | 1093.3 | 806.0 | 403.8 | 266.7 |
| 25% | 661.5 | 1172.5 | 799.3 | 587.3 | 333.5 | 234.9 |
| 50% | 475.0 | 891.1 | 573.8 | 397.0 | 254.5 | 213.9 |
| 75% | 374.6 | 623.7 | 409.6 | 322.6 | 222.9 | 187.9 |
| 90% | 338.7 | 358.4 | 341.7 | 256.1 | 204.3 | 173.8 |
|
| Mean | 802.6 | 912.1 | 642.8 | 500.1 | 310.7 | 227.3 |
| %Mean | 59.2 | 97.7 | 89.3 | 79.4 | 81.9 | 94.1 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 235.2 | 218.6 | 255.8 | 527.5 | 1202.8 | 1511.5 |
| 25% | 212.2 | 203.5 | 224.4 | 339.3 | 868.4 | 882.0 |
| 50% | 194.6 | 184.7 | 201.7 | 229.9 | 402.5 | 609.2 |
| 75% | 174.5 | 169.8 | 184.5 | 207.5 | 276.0 | 355.7 |
| 90% | 161.9 | 159.4 | 166.1 | 180.3 | 210.8 | 260.9 |
|
| Mean | 201.8 | 194.4 | 227.4 | 304.7 | 543.0 | 700.7 |
| %Mean | 96.4 | 95.0 | 88.7 | 75.5 | 74.1 | 86.9 |
| 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. |
