Lower Monumental Dam & Lake
April 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 | 11467 | 478 | 17 | 73.10 | 73.80 | 64.90 | 8.10 | 537.96 | 538.60 | 439.54 | 99.06 |
| 2 | 10615 | 442 | 17 | 68.20 | 68.70 | 60.40 | 7.50 | 537.78 | 537.91 | 439.31 | 98.60 |
| 3 | 2200 | 92 | 16 | 70.00 | 69.10 | 12.60 | 55.90 | 538.03 | 537.70 | 438.82 | 98.88 |
| 4 | 2165 | 90 | 16 | 67.10 | 68.00 | 12.30 | 55.10 | 537.74 | 538.02 | 438.85 | 99.17 |
| 5 | 2123 | 88 | 16 | 62.70 | 63.40 | 12.20 | 50.50 | 537.56 | 537.61 | 438.78 | 98.83 |
| 6 | | | | 64.40 | 63.50 | 12.20 | 50.60 | 537.82 | 537.68 | 438.76 | 98.92 |
| 7 | | | | 61.90 | 59.70 | 12.20 | 46.80 | 538.47 | 538.09 | 438.68 | 99.41 |
| 8 | | | | 58.20 | 58.50 | 12.30 | 45.40 | 538.39 | 538.51 | 438.45 | 100.06 |
| 9 | | | | 60.30 | 60.50 | 12.20 | 47.60 | 538.33 | 538.47 | 438.65 | 99.82 |
| 10 | | | | 61.20 | 61.10 | 12.20 | 48.30 | 538.38 | 538.29 | 438.72 | 99.57 |
| 11 | | | | 59.70 | 59.50 | 12.30 | 46.50 | 538.41 | 538.32 | 438.71 | 99.61 |
| 12 | | | | 66.70 | 67.00 | 12.40 | 54.00 | 538.35 | 538.37 | 438.83 | 99.54 |
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| TOT | 28570 | | 82 | | | | | | | | |
| AVG | 5714 | 238 | 16 | 64.46 | 64.40 | 20.68 | 43.02 | 538.10 | 538.13 | 438.84 | 99.29 |
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| MAX | 11467 | | | 73.10 | 73.80 | 64.90 | 55.90 | 538.47 | 538.60 | 439.54 | 100.06 |
| MIN | 2123 | | | 58.20 | 58.50 | 12.20 | 7.50 | 537.56 | 537.61 | 438.45 | 98.60 |