Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Sep 02 2026 at 7:50 AM PDT |
| Prob | Sep* | Oct | Nov | Dec | Jan | Feb |
| 10% | 0.4 | 0.9 | 5.7 | 19.5 | 24.7 | 28.4 |
| 25% | 0.2 | 0.4 | 1.6 | 7.8 | 11.0 | 13.6 |
| 50% | 0.1 | 0.2 | 0.3 | 2.1 | 4.3 | 7.2 |
| 75% | 0.0 | 0.0 | 0.2 | 0.3 | 1.5 | 2.3 |
| 90% | -0.0 | -0.0 | 0.1 | 0.1 | 0.5 | 1.2 |
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| Mean | + | + | + | + | + | + |
| %Mean | + | + | + | + | + | + |
| Prob | Mar | Apr | May | Jun | Jul | Aug |
| 10% | 54.2 | 63.2 | 32.4 | 4.8 | 0.5 | 0.4 |
| 25% | 38.6 | 47.8 | 18.2 | 2.8 | 0.1 | 0.0 |
| 50% | 17.6 | 19.3 | 6.9 | 0.9 | -0.0 | -0.0 |
| 75% | 8.6 | 8.1 | 1.8 | 0.3 | -0.0 | -0.0 |
| 90% | 5.5 | 3.1 | 0.8 | 0.0 | -0.1 | -0.1 |
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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. |
