Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Aug 17 2026 at 7:53 AM PDT |
| Prob | Aug* | Sep | Oct | Nov | Dec | Jan |
| 10% | 0.8 | 1.0 | 2.7 | 5.5 | 32.9 | 44.1 |
| 25% | 0.8 | 0.9 | 1.0 | 2.8 | 6.2 | 18.1 |
| 50% | 0.8 | 0.8 | 0.8 | 1.2 | 3.6 | 5.7 |
| 75% | 0.8 | 0.8 | 0.8 | 0.8 | 1.6 | 2.6 |
| 90% | 0.8 | 0.8 | 0.7 | 0.7 | 0.8 | 1.6 |
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| Mean | + | + | + | + | + | + |
| %Mean | + | + | + | + | + | + |
| Prob | Feb | Mar | Apr | May | Jun | Jul |
| 10% | 54.1 | 54.9 | 44.4 | 44.3 | 18.7 | 5.6 |
| 25% | 22.0 | 38.2 | 32.4 | 29.6 | 9.4 | 4.5 |
| 50% | 7.4 | 15.1 | 17.1 | 12.5 | 4.9 | 3.2 |
| 75% | 3.6 | 8.5 | 10.4 | 6.8 | 3.2 | 2.3 |
| 90% | 2.4 | 4.7 | 7.3 | 4.2 | 2.3 | 1.6 |
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| Mean | + | + | + | + | + | + |
| %Mean | + | + | + | + | + | + |
| 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. |
