Cougar Dam
December 2025
| Day of Month | Total Generation MWh | Average Generation MW | Station Use MWh | Inflow cfs | Total Outflow cfs | Generation Flow cfs | Spill cfs | Midnight Reservoir Elevation | Average Forebay Elevation | Average Tailwater Elevation | Average Head feet | Midnight Storage kaf |
| 1 | 0 | 0 | 7 | 289 | 320 | 0 | 320 | 1502.73 | 1502.82 | 1250.84 | 251.98 | 36991.60 |
| 2 | 0 | 0 | 5 | 275 | 320 | 0 | 320 | 1502.53 | 1502.63 | 1250.83 | 251.80 | 36911.49 |
| 3 | 0 | 0 | 11 | 267 | 310 | 0 | 310 | 1502.28 | 1502.41 | 1250.87 | 251.54 | 36811.59 |
| 4 | 0 | 0 | 0 | 264 | 310 | 0 | 310 | 1502.07 | 1502.16 | 1250.92 | 251.24 | 36727.87 |
| 5 | 0 | 0 | 1 | 421 | 320 | 0 | 310 | 1503.91 | 1502.58 | 1250.93 | 251.65 | 37554.74 |
| 6 | 0 | 0 | 0 | 982 | 620 | 0 | 620 | 1504.61 | 1504.66 | 1251.56 | 253.10 | 37904.25 |
| 7 | 0 | 0 | 4 | 594 | 720 | 0 | 720 | 1504.00 | 1504.25 | 1251.78 | 252.47 | 37600.00 |
| 8 | 0 | 0 | 3 | 613 | 640 | 0 | 640 | 1504.36 | 1504.02 | 1251.62 | 252.40 | 37779.28 |
| 9 | 0 | 0 | 6 | 1018 | 750 | 0 | 750 | 1506.82 | 1505.27 | 1251.85 | 253.42 | 38927.71 |
| 10 | 0 | 0 | 0 | 1798 | 900 | 0 | 900 | 1509.83 | 1508.68 | 1252.13 | 256.55 | 40414.58 |
| 11 | | | | 1178 | 900 | | | 1510.31 | 1510.22 | 1252.15 | 258.07 | 40654.38 |
| 12 | | | | 818 | 860 | | | 1509.84 | 1510.09 | 1252.09 | 258.00 | 40419.60 |
| 13 | | | | 635 | 750 | | | 1509.21 | 1509.51 | 1251.94 | 257.57 | 40104.51 |
| 14 | | | | 523 | 580 | | | 1508.87 | 1508.97 | 1251.75 | 257.22 | 39934.66 |
| 15 | | | | 496 | 490 | | | 1509.27 | 1508.93 | 1251.66 | 257.27 | 40134.42 |
| 16 | | | | 721 | 500 | | | 1510.05 | 1509.70 | 1251.66 | 258.04 | 40524.86 |
| 17 | | | | 1171 | 560 | | | 1513.35 | 1511.70 | 1251.67 | 260.03 | 42174.36 |
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| TOT | 0 | | 37 | | | | | | | | | |
| AVG | 0 | 0 | 4 | 710 | 579 | 0 | 520 | 1506.71 | 1506.39 | 1251.54 | 254.84 | 38915.88 |
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| MAX | 0 | | | 1798 | 900 | 0 | 900 | 1513.35 | 1511.70 | 1252.15 | 260.03 | 42174.36 |
| MIN | 0 | | | 264 | 310 | 0 | 310 | 1502.07 | 1502.16 | 1250.83 | 251.24 | 36727.87 |