Libby Dam & Lake Koocanusa
December 2025
| 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 | Midnight Storage kaf |
|---|
| 1 | 8358 | 348 | 26 | 3.80 | 15.00 | 15.00 | 0.00 | 2431.82 | 2432.07 | 2122.00 | 310.07 | 3787.30 |
| 2 | 8492 | 354 | 26 | 4.32 | 15.50 | 15.25 | 0.25 | 2431.28 | 2431.55 | 2122.14 | 309.41 | 3765.20 |
| 3 | 8592 | 358 | 27 | 4.03 | 16.00 | 15.50 | 0.50 | 2430.70 | 2430.98 | 2122.22 | 308.76 | 3741.40 |
| 4 | 8592 | 358 | 26 | 3.45 | 16.00 | 15.50 | 0.50 | 2430.09 | 2430.39 | 2122.25 | 308.14 | 3716.50 |
| 5 | 8606 | 359 | 27 | 4.72 | 16.00 | 15.50 | 0.50 | 2429.54 | 2429.80 | 2122.26 | 307.54 | 3694.10 |
| 6 | 8596 | 358 | 26 | 6.79 | 16.00 | 15.50 | 0.50 | 2429.09 | 2429.30 | 2122.25 | 307.05 | 3675.80 |
| 7 | 8580 | 358 | 25 | 5.18 | 16.00 | 15.50 | 0.50 | 2428.56 | 2428.83 | 2122.25 | 306.58 | 3654.40 |
| 8 | 8602 | 358 | 25 | 4.32 | 16.00 | 15.50 | 0.50 | 2427.56 | 2427.99 | 2122.33 | 305.66 | 3614.10 |
| 9 | 8596 | 358 | 24 | 5.93 | 16.25 | 15.63 | 0.63 | 2427.05 | 2427.35 | 2122.38 | 304.97 | 3593.60 |
| 10 | 8575 | 357 | 26 | 8.32 | 17.00 | 16.00 | 1.00 | 2426.62 | 2426.84 | 2122.43 | 304.41 | 3576.40 |
| 11 | 5604 | 234 | 21 | 16.01 | 10.77 | 10.33 | 0.44 | 2426.88 | 2426.64 | 2120.31 | 306.33 | 3586.80 |
| 12 | 2505 | 104 | 20 | 11.94 | 4.46 | 4.46 | 0.00 | 2427.25 | 2427.11 | 2118.14 | 308.97 | 3601.60 |
| 13 | 8522 | 355 | 21 | 10.60 | 15.85 | 15.85 | 0.00 | 2426.99 | 2427.17 | 2122.18 | 304.99 | 3591.20 |
| 14 | 8596 | 358 | 23 | 8.54 | 16.00 | 16.00 | 0.00 | 2426.62 | 2426.80 | 2122.22 | 304.58 | 3576.40 |
| 15 | 8591 | 358 | 21 | 8.34 | 16.00 | 16.00 | 0.00 | 2426.24 | 2426.42 | 2122.23 | 304.19 | 3561.20 |
| 16 | 8595 | 358 | 21 | 9.50 | 16.33 | 16.00 | 0.33 | 2425.90 | 2426.07 | 2122.28 | 303.79 | 3547.60 |
| 17 | 8495 | 354 | 21 | 15.26 | 16.26 | 15.88 | 0.38 | 2425.85 | 2425.85 | 2122.30 | 303.55 | 3545.60 |
| 18 | 8617 | 359 | 24 | 12.49 | 16.50 | 16.00 | 0.50 | 2425.65 | 2425.74 | 2122.22 | 303.52 | 3537.70 |
| 19 | 9306 | 388 | 23 | 10.85 | 17.67 | 17.52 | 0.15 | 2425.31 | 2425.51 | 2122.48 | 303.03 | 3524.20 |
| 20 | 10619 | 442 | 24 | 9.41 | 20.00 | 20.00 | 0.00 | 2424.78 | 2425.04 | 2123.20 | 301.84 | 3503.10 |
| 21 | 10623 | 443 | 25 | 9.64 | 20.00 | 20.00 | 0.00 | 2424.26 | 2424.52 | 2123.19 | 301.33 | 3482.60 |
| 22 | 10637 | 443 | 26 | 7.88 | 20.00 | 20.00 | 0.00 | 2423.65 | 2423.93 | 2123.20 | 300.73 | 3458.50 |
| 23 | 11042 | 460 | 25 | 7.52 | 20.58 | 20.58 | 0.00 | 2422.99 | 2423.30 | 2123.32 | 299.98 | 3432.60 |
| 24 | 11320 | 472 | 25 | 5.62 | 21.00 | 21.00 | 0.00 | 2422.21 | 2422.61 | 2123.41 | 299.20 | 3402.10 |
| 25 | 11320 | 472 | 24 | 5.62 | 21.00 | 21.00 | 0.00 | 2421.48 | 2421.84 | 2123.41 | 298.43 | 3373.70 |
| 26 | 11332 | 472 | 25 | 6.73 | 21.00 | 21.00 | 0.00 | 2420.75 | 2421.11 | 2123.44 | 297.67 | 3345.30 |
| 27 | 11263 | 469 | 27 | 7.39 | 22.00 | 22.00 | 0.00 | 2420.00 | 2420.38 | 2123.43 | 296.95 | 3316.40 |
| 28 | 11240 | 468 | 30 | 6.30 | 22.00 | 22.00 | 0.00 | 2419.19 | 2419.59 | 2123.44 | 296.15 | 3285.20 |
| 29 | 11196 | 466 | 28 | 6.38 | 22.00 | 22.00 | 0.00 | 2418.38 | 2418.75 | 2123.43 | 295.32 | 3254.20 |
| 30 | 11116 | 463 | 27 | 4.54 | 22.00 | 22.00 | 0.00 | 2417.47 | 2417.88 | 2123.41 | 294.47 | 3219.60 |
| 31 | 11066 | 461 | 28 | 6.36 | 22.00 | 22.00 | 0.00 | 2416.65 | 2417.03 | 2123.40 | 293.63 | 3188.50 |
|
| TOT | 287195 | | 768 | | | | | | | | | |
| AVG | 9264 | 386 | 25 | 7.67 | 17.52 | 17.31 | 0.22 | 2425.19 | 2425.43 | 2122.49 | 302.94 | 3521.06 |
|
| MAX | 11332 | | | 16.01 | 22.00 | 22.00 | 1.00 | 2431.82 | 2432.07 | 2123.44 | 310.07 | 3787.30 |
| MIN | 2505 | | | 3.45 | 4.46 | 4.46 | 0.00 | 2416.65 | 2417.03 | 2118.14 | 293.63 | 3188.50 |