Chief Joseph Dam & Rufus Woods Lake
February 2026
| Day of Month | Total Generation MWh | Average Generation MW | Station Use MWh | Inflow kcfs | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Midnight Reservoir Elevation | Average Forebay Elevation | Average Tailwater Elevation | Average Head feet |
| 1 | | | | 110.10 | 108.60 | 108.60 | 0.00 | 952.80 | 952.30 | 780.70 | 171.60 |
| 2 | | | | 125.30 | 126.80 | 126.80 | 0.00 | 952.40 | 952.10 | 782.00 | 170.10 |
| 3 | | | | 121.20 | 123.50 | 123.50 | 0.00 | 951.80 | 952.40 | 782.60 | 169.80 |
| 4 | | | | 104.60 | 104.20 | 104.20 | 0.00 | 952.50 | 952.30 | 779.90 | 172.40 |
| 5 | | | | 113.80 | 111.90 | 111.90 | 0.00 | 953.00 | 952.60 | 780.60 | 172.00 |
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| TOT | | | | | | | | | | | |
| AVG | | | | 115.00 | 115.00 | 115.00 | 0.00 | 952.50 | 952.34 | 781.16 | 171.18 |
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| MAX | | | | 125.30 | 126.80 | 126.80 | 0.00 | 953.00 | 952.60 | 782.60 | 172.40 |
| MIN | | | | 104.60 | 104.20 | 104.20 | 0.00 | 951.80 | 952.10 | 779.90 | 169.80 |