Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: May 18 2026 at 8:01 AM PDT |
| Prob | May* | Jun | Jul | Aug | Sep | Oct |
| 10% | 7.4 | 1.8 | 0.3 | 0.1 | 0.4 | 2.8 |
| 25% | 7.2 | 1.0 | 0.2 | 0.0 | 0.1 | 0.5 |
| 50% | 7.1 | 0.7 | 0.1 | 0.0 | 0.0 | 0.2 |
| 75% | 7.0 | 0.6 | 0.1 | 0.0 | 0.0 | 0.1 |
| 90% | 7.0 | 0.5 | 0.1 | 0.0 | 0.0 | 0.0 |
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| Mean | + | + | + | + | + | + |
| %Mean | + | + | + | + | + | + |
| Prob | Nov | Dec | Jan | Feb | Mar | Apr |
| 10% | 3.0 | 5.8 | 2.9 | 9.3 | 11.0 | 22.6 |
| 25% | 1.1 | 1.4 | 1.0 | 2.1 | 7.4 | 18.9 |
| 50% | 0.5 | 0.4 | 0.6 | 1.0 | 4.0 | 14.8 |
| 75% | 0.2 | 0.2 | 0.3 | 0.6 | 2.6 | 11.2 |
| 90% | 0.2 | 0.2 | 0.2 | 0.3 | 1.5 | 5.7 |
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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. |
