Ice Harbor Dam
September 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 | 2367 | 99 | 55 | 20.00 | 20.80 | 13.10 | 7.00 | 438.32 | 438.18 | 338.51 | 99.67 |
| 2 | 2359 | 98 | 55 | 17.30 | 18.00 | 13.10 | 4.20 | 438.14 | 438.26 | 338.98 | 99.28 |
| 3 | 2878 | 120 | 55 | 21.50 | 18.10 | 15.90 | 1.40 | 438.93 | 438.62 | 339.31 | 99.31 |
| 4 | 3056 | 127 | 54 | 21.90 | | 16.80 | | | 439.12 | | |
| 5 | | | | 28.40 | 27.70 | 22.30 | 4.70 | 439.06 | 439.15 | 339.79 | 99.36 |
| 6 | | | | 24.90 | 25.30 | 15.50 | 9.20 | 438.97 | 439.00 | 339.16 | 99.84 |
| 7 | | | | 23.50 | 24.50 | 19.20 | 4.70 | 438.74 | 438.84 | 339.47 | 99.37 |
| 8 | | | | 21.40 | 22.20 | 17.20 | 4.40 | 438.55 | 438.69 | 339.28 | 99.41 |
| 9 | | | | 23.40 | 22.10 | 16.90 | 4.70 | 438.85 | 439.05 | 339.30 | 99.75 |
| 10 | | | | 26.80 | 26.10 | 20.60 | 4.70 | 439.03 | 438.96 | 339.53 | 99.43 |
| 11 | | | | 25.20 | 25.90 | 16.30 | 9.10 | 438.86 | 438.95 | 339.07 | 99.88 |
| 12 | | | | | | | | | | | |
| 13 | | | | | | | | | | | |
| 14 | | | | | | | | | | | |
| 15 | | | | | | | | | | | |
| 16 | | | | | | | | | | | |
| 17 | | | | | | | | | | | |
| 18 | | | | | | | | | | | |
| 19 | | | | | | | | | | | |
| 20 | | | | | | | | | | | |
| 21 | | | | | | | | | | | |
| 22 | | | | | | | | | | | |
| 23 | | | | | | | | | | | |
| 24 | | | | | | | | | | | |
| 25 | | | | | | | | | | | |
| 26 | | | | | | | | | | | |
| 27 | | | | | | | | | | | |
| 28 | | | | | | | | | | | |
| 29 | | | | | | | | | | | |
| 30 | | | | | | | | | | | |
|
| TOT | 10660 | | 219 | | | | | | | | |
| AVG | 2665 | 111 | 55 | 23.12 | 23.07 | 16.99 | 5.41 | 438.75 | 438.80 | 339.24 | 99.53 |
|
| MAX | 3056 | | | 28.40 | 27.70 | 22.30 | 9.20 | 439.06 | 439.15 | 339.79 | 99.88 |
| MIN | 2359 | | | 17.30 | 18.00 | 13.10 | 1.40 | 438.14 | 438.18 | 338.51 | 99.28 |