Lower Helena Pumpback Dam
Total Dam Capacity
Lower Helena Pumpback
38.1%
0.05 GL
Last year
73.6%
0.1 GL
Change
-50%
-0.05 GL
Dam Storage for the last 14 days
| Year | Today | 04/09 | 03/09 | 02/09 | 01/09 | 31/08 | 30/08 | 29/08 | 28/08 | 27/08 | 26/08 | 25/08 | 24/08 | 23/08 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | N/A | 0.05 | 0.05 | 0.05 | 0.06 | 0.06 | 0.06 | 0.07 | 0.11 | 0.12 | 0.12 | 0.13 | 0.11 | 0.07 |
| 2024 | 0.12 | 0.10 | 0.09 | 0.09 | 0.09 | 0.07 | 0.09 | 0.08 | 0.07 | 0.08 | 0.08 | 0.10 | 0.12 | 0.11 |
| Comparison | N/A | -0.05 | -0.04 | -0.04 | -0.03 | -0.01 | -0.03 | -0.01 | +0.04 | +0.04 | +0.04 | +0.03 | -0.01 | -0.04 |
N/A = Data not available. Storage measured in GL.
Monthly Dam Level Comparison
Select each point to see average monthly dam volume.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 0.0624 | 0.0450 | 0.0317 | 0.0294 | 0.0295 | 0.0459 | 0.0720 | 0.0850 | 0.0521 | N/A | N/A | N/A |
| 2024 | 0.0801 | 0.0668 | 0.0561 | 0.0359 | 0.0276 | 0.0318 | 0.0601 | 0.0798 | 0.0619 | 0.0688 | 0.1006 | 0.0876 |
| 2023 | 0.0517 | 0.0323 | 0.0230 | 0.0261 | 0.0359 | 0.0526 | 0.0499 | 0.0492 | 0.0490 | 0.0505 | 0.0475 | 0.0891 |
| 2022 | 0.0669 | 0.0588 | 0.0727 | 0.0595 | 0.0448 | 0.0421 | 0.0569 | 0.0713 | 0.0482 | 0.0820 | 0.0910 | 0.0749 |
| 2021 | 0.1034 | 0.0737 | 0.0475 | 0.0255 | 0.0260 | 0.0413 | 0.0477 | 0.0826 | 0.0560 | 0.0520 | 0.0552 | 0.0504 |
| 2020 | 0.0756 | 0.0507 | 0.0367 | 0.0230 | 0.0212 | 0.0282 | 0.0569 | 0.0549 | 0.0531 | 0.0498 | 0.1052 | 0.1288 |
| 2019 | 0.0705 | 0.0535 | 0.0406 | 0.0174 | 0.0105 | 0.0304 | 0.0611 | 0.0540 | 0.0612 | 0.0639 | 0.1176 | 0.1032 |
| 2018 | 0.1020 | 0.0994 | 0.0747 | 0.0514 | 0.0354 | 0.0763 | 0.0630 | 0.0812 | 0.0513 | 0.0525 | 0.0895 | 0.0866 |
N/A = Data not available. Storage measured in GL.