Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Aug 01 2026 at 8:25 AM PDT |
| Prob | Aug* | Sep | Oct | Nov | Dec | Jan |
| 10% | 6.9 | 6.2 | 32.7 | 52.3 | 174.6 | 203.6 |
| 25% | 6.8 | 4.4 | 6.2 | 19.8 | 62.4 | 103.3 |
| 50% | 6.7 | 4.0 | 3.8 | 10.2 | 20.7 | 44.8 |
| 75% | 6.7 | 3.9 | 3.4 | 4.5 | 8.6 | 18.3 |
| 90% | 6.7 | 3.8 | 2.7 | 3.3 | 4.3 | 12.7 |
|
| Mean | 20.5 | 14.5 | 19.6 | 27.5 | 63.4 | 100.1 |
| %Mean | 32.7 | 27.6 | 19.4 | 37.1 | 32.6 | 44.8 |
| Prob | Feb | Mar | Apr | May | Jun | Jul |
| 10% | 259.3 | 339.0 | 323.9 | 506.2 | 453.0 | 165.1 |
| 25% | 131.5 | 204.5 | 269.6 | 368.4 | 269.7 | 80.1 |
| 50% | 73.5 | 135.4 | 188.0 | 215.6 | 106.6 | 38.1 |
| 75% | 29.4 | 84.2 | 141.0 | 132.3 | 57.4 | 17.6 |
| 90% | 21.8 | 64.3 | 109.7 | 106.5 | 44.0 | 10.6 |
|
| Mean | 114.7 | 156.6 | 198.5 | 248.4 | 162.5 | 60.2 |
| %Mean | 64.1 | 86.5 | 94.7 | 86.8 | 65.6 | 63.3 |
| 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. |
