Lake Shannon Water Level History
Thirty-day lake-level chart, recent highs and lows, net change and daily summaries from the matched USGS station.
Lake Shannon water-level chart
Source: U.S. Geological Survey monitoring station ↗. Recent measurements may be provisional.
What has Lake Shannon been doing?
Across the available 30-day series, Lake Shannon is rising overall. The measured range runs from 406.7 ft to 411.26 ft, with a net change of +3.17 ft.
Lake levels can respond to rainfall, watershed inflow, dam and hydropower operations, seasonal target elevations, evaporation and downstream release requirements. This page reports what the matched sensor measured; it does not infer why an operator changed a reservoir.
Recent daily levels
| Date | Low | Average | High |
|---|---|---|---|
| Oct 7 | 410.28 ft | 410.78 ft | 411.26 ft |
| Oct 6 | 408.90 ft | 409.57 ft | 410.23 ft |
| Oct 5 | 408.75 ft | 408.97 ft | 409.27 ft |
| Oct 4 | 408.97 ft | 409.54 ft | 409.93 ft |
| Oct 3 | 409.52 ft | 410.08 ft | 410.47 ft |
| Oct 2 | 409.86 ft | 410.03 ft | 410.27 ft |
| Oct 1 | 409.78 ft | 410.09 ft | 410.31 ft |
| Sep 30 | 410.00 ft | 410.19 ft | 410.33 ft |
| Sep 29 | 409.52 ft | 410.36 ft | 410.69 ft |
| Sep 28 | 408.70 ft | 409.03 ft | 409.32 ft |
| Sep 27 | 408.66 ft | 409.50 ft | 409.96 ft |
| Sep 26 | 408.69 ft | 409.13 ft | 409.56 ft |
| Sep 25 | 409.57 ft | 409.98 ft | 410.36 ft |
| Sep 24 | 409.01 ft | 409.41 ft | 409.79 ft |
| Sep 23 | 408.76 ft | 409.14 ft | 409.44 ft |
| Sep 22 | 408.40 ft | 408.91 ft | 409.17 ft |
| Sep 21 | 408.27 ft | 408.51 ft | 408.85 ft |
| Sep 20 | 408.89 ft | 409.37 ft | 409.80 ft |
| Sep 19 | 409.84 ft | 410.23 ft | 410.64 ft |
| Sep 18 | 409.74 ft | 410.14 ft | 410.54 ft |
| Sep 17 | 408.29 ft | 409.43 ft | 409.93 ft |
| Sep 16 | 408.16 ft | 408.67 ft | 409.16 ft |
| Sep 15 | 406.97 ft | 408.26 ft | 409.31 ft |
| Sep 14 | 407.02 ft | 407.52 ft | 408.02 ft |
| Sep 13 | 408.06 ft | 408.53 ft | 408.95 ft |
| Sep 12 | 408.46 ft | 409.01 ft | 409.43 ft |
| Sep 11 | 406.97 ft | 408.14 ft | 408.63 ft |
| Sep 10 | 406.70 ft | 407.18 ft | 407.75 ft |
| Sep 9 | 407.08 ft | 407.85 ft | 408.43 ft |
| Sep 8 | 407.23 ft | 407.64 ft | 408.02 ft |
Lake Shannon level-history FAQ
How has Lake Shannon water level changed over the last 30 days?
Across the available 30-day sensor series, the net change is +3.17 ft and the overall direction is rising.
What was the highest Lake Shannon level in the last 30 days?
The highest reading in the available 30-day series is 411.26 ft.
What was the lowest Lake Shannon level in the last 30 days?
The lowest reading in the available 30-day series is 406.7 ft.
Are historical USGS lake readings final?
Not always. Recent readings may be marked provisional and can be revised by the source agency after quality review.