Hoover Reservoir Water Level History
Thirty-day lake-level chart, recent highs and lows, net change and daily summaries from the matched USGS station.
Hoover Reservoir water-level chart
Source: U.S. Geological Survey monitoring station ↗. Recent measurements may be provisional.
What has Hoover Reservoir been doing?
Across the available 30-day series, Hoover Reservoir is falling overall. The measured range runs from 891.97 ft to 893.66 ft, with a net change of -0.21 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 | 892.60 ft | 892.63 ft | 892.67 ft |
| Oct 6 | 892.68 ft | 892.72 ft | 892.77 ft |
| Oct 5 | 892.77 ft | 892.82 ft | 892.87 ft |
| Oct 4 | 892.88 ft | 892.92 ft | 892.96 ft |
| Oct 3 | 892.96 ft | 893.00 ft | 893.04 ft |
| Oct 2 | 893.04 ft | 893.07 ft | 893.09 ft |
| Oct 1 | 893.08 ft | 893.12 ft | 893.17 ft |
| Sep 30 | 893.17 ft | 893.22 ft | 893.26 ft |
| Sep 29 | 893.27 ft | 893.32 ft | 893.36 ft |
| Sep 28 | 893.36 ft | 893.40 ft | 893.45 ft |
| Sep 27 | 893.45 ft | 893.50 ft | 893.55 ft |
| Sep 26 | 893.55 ft | 893.58 ft | 893.61 ft |
| Sep 25 | 893.61 ft | 893.64 ft | 893.66 ft |
| Sep 24 | 893.65 ft | 893.66 ft | 893.66 ft |
| Sep 23 | 893.66 ft | 893.66 ft | 893.66 ft |
| Sep 22 | 893.52 ft | 893.60 ft | 893.66 ft |
| Sep 21 | 892.32 ft | 893.10 ft | 893.52 ft |
| Sep 20 | 891.97 ft | 892.03 ft | 892.23 ft |
| Sep 19 | 891.97 ft | 892.01 ft | 892.05 ft |
| Sep 18 | 892.06 ft | 892.11 ft | 892.14 ft |
| Sep 17 | 892.15 ft | 892.18 ft | 892.23 ft |
| Sep 16 | 892.24 ft | 892.27 ft | 892.31 ft |
| Sep 15 | 892.32 ft | 892.36 ft | 892.41 ft |
| Sep 14 | 892.41 ft | 892.44 ft | 892.47 ft |
| Sep 13 | 892.42 ft | 892.44 ft | 892.47 ft |
| Sep 12 | 892.42 ft | 892.45 ft | 892.47 ft |
| Sep 11 | 892.47 ft | 892.50 ft | 892.53 ft |
| Sep 10 | 892.54 ft | 892.57 ft | 892.64 ft |
| Sep 9 | 892.56 ft | 892.62 ft | 892.67 ft |
| Sep 8 | 892.67 ft | 892.71 ft | 892.77 ft |
Hoover Reservoir level-history FAQ
How has Hoover Reservoir water level changed over the last 30 days?
Across the available 30-day sensor series, the net change is -0.21 ft and the overall direction is falling.
What was the highest Hoover Reservoir level in the last 30 days?
The highest reading in the available 30-day series is 893.66 ft.
What was the lowest Hoover Reservoir level in the last 30 days?
The lowest reading in the available 30-day series is 891.97 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.