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 | 34185 | 1424 | 34 | 110.10 | 108.60 | 108.60 | 0.00 | 952.80 | 952.30 | 780.70 | 171.60 |
| 2 | 40007 | 1667 | 33 | 125.30 | 126.80 | 126.80 | 0.00 | 952.40 | 952.10 | 782.00 | 170.10 |
| 3 | 39286 | 1637 | 32 | 121.20 | 123.50 | 123.50 | 0.00 | 951.80 | 952.40 | 782.60 | 169.80 |
| 4 | 33526 | 1397 | 31 | 104.60 | 104.20 | 104.20 | 0.00 | 952.50 | 952.30 | 779.90 | 172.40 |
| 5 | 36029 | 1501 | 32 | 113.80 | 111.90 | 111.90 | 0.00 | 953.00 | 952.60 | 780.60 | 172.00 |
| 6 | 39019 | 1626 | 33 | 120.50 | 122.50 | 122.50 | 0.00 | 952.40 | 952.80 | 782.70 | 170.10 |
| 7 | 33347 | 1389 | 33 | 107.60 | 103.30 | 103.30 | 0.00 | 953.50 | 952.70 | 780.10 | 172.60 |
| 8 | 37025 | 1543 | 33 | 113.10 | 115.40 | 115.40 | 0.00 | 952.90 | 952.40 | 781.60 | 170.80 |
| 9 | | | | 124.70 | 128.90 | 128.90 | 0.00 | 951.80 | 951.90 | 783.20 | 168.70 |
| 10 | | | | 128.80 | 126.10 | 126.10 | 0.00 | 952.50 | 952.10 | 783.80 | 168.30 |
| 11 | | | | 119.10 | 121.00 | 121.00 | 0.00 | 952.00 | 952.50 | 782.50 | 170.00 |
| 12 | | | | 123.90 | 123.50 | 123.50 | 0.00 | 952.20 | 952.10 | 782.50 | 169.60 |
| 13 | | | | 124.40 | 122.90 | 122.90 | 0.00 | 952.50 | 952.20 | 782.30 | 169.90 |
| 14 | | | | 113.70 | 110.60 | 110.60 | 0.00 | 953.30 | 952.70 | 781.30 | 171.40 |
| 15 | | | | 117.30 | 121.90 | 121.90 | 0.00 | 952.10 | 952.90 | 782.00 | 170.90 |
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| TOT | 292424 | | 262 | | | | | | | | |
| AVG | 36553 | 1523 | 33 | 117.87 | 118.07 | 118.07 | 0.00 | 952.51 | 952.40 | 781.85 | 170.55 |
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| MAX | 40007 | | | 128.80 | 128.90 | 128.90 | 0.00 | 953.50 | 952.90 | 783.80 | 172.60 |
| MIN | 33347 | | | 104.60 | 103.30 | 103.30 | 0.00 | 951.80 | 951.90 | 779.90 | 168.30 |