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 | 0 | 0 | 6 | 1178 | 900 | 0 | 900 | 1510.31 | 1510.22 | 1252.15 | 258.07 | 40654.38 |
| 12 | 0 | 0 | 0 | 818 | 860 | 0 | 860 | 1509.84 | 1510.09 | 1252.09 | 258.00 | 40419.60 |
| 13 | 0 | 0 | 0 | 635 | 750 | 0 | 750 | 1509.21 | 1509.51 | 1251.94 | 257.57 | 40104.51 |
| 14 | 0 | 0 | 0 | 523 | 580 | 0 | 580 | 1508.87 | 1508.97 | 1251.75 | 257.22 | 39934.66 |
| 15 | 0 | 0 | 11 | 496 | 490 | 0 | 500 | 1509.27 | 1508.93 | 1251.66 | 257.27 | 40134.42 |
| 16 | 0 | 0 | 2 | 721 | 500 | 0 | 500 | 1510.05 | 1509.70 | 1251.66 | 258.04 | 40524.86 |
| 17 | 0 | 0 | 0 | 1171 | 560 | 0 | 560 | 1513.35 | 1511.70 | 1251.67 | 260.03 | 42174.36 |
| 18 | 0 | 0 | 4 | 1703 | 600 | 0 | 600 | 1521.19 | 1515.93 | 1251.70 | 264.23 | 46294.61 |
| 19 | | | | 6493 | 730 | | | 1542.67 | 1533.80 | 1251.76 | 282.04 | 58034.56 |
| 20 | | | | 3675 | 780 | | | 1549.59 | 1546.76 | 1251.87 | 294.89 | 62053.34 |
| 21 | | | | 2101 | 790 | | | 1553.73 | 1551.69 | 1251.89 | 299.80 | 64637.49 |
| 22 | | | | 2204 | 810 | | | 1557.98 | 1556.08 | 1251.92 | 304.16 | 67287.95 |
| 23 | | | | 1815 | 820 | | | 1560.60 | 1559.44 | 1251.93 | 307.51 | 68959.42 |
| 24 | | | | 1442 | 870 | | | 1562.11 | 1561.49 | 1252.28 | 309.21 | 69965.77 |
| 25 | | | | 1261 | 1090 | | | 1562.54 | 1562.36 | 1254.02 | 308.34 | 70223.41 |
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|
| TOT | 0 | | 60 | | | | | | | | | |
| AVG | 0 | 0 | 3 | 1310 | 654 | 0 | 581 | 1520.98 | 1519.85 | 1251.74 | 268.10 | 46761.06 |
|
| MAX | 0 | | | 6493 | 1090 | 0 | 900 | 1562.54 | 1562.36 | 1254.02 | 309.21 | 70223.41 |
| MIN | 0 | | | 264 | 310 | 0 | 310 | 1502.07 | 1502.16 | 1250.83 | 251.24 | 36727.87 |