Lake Tahoe Water Level History
Thirty-day lake-level chart, recent highs and lows, net change and daily summaries from the matched USGS station.
Lake Tahoe water-level chart
Source: U.S. Geological Survey monitoring station ↗. Recent measurements may be provisional.
What has Lake Tahoe been doing?
Across the available 30-day series, Lake Tahoe is falling overall. The measured range runs from 6.85 ft to 7.26 ft, with a net change of -0.41 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 | 6.85 ft | 6.85 ft | 6.86 ft |
| Oct 6 | 6.85 ft | 6.86 ft | 6.86 ft |
| Oct 5 | 6.86 ft | 6.87 ft | 6.88 ft |
| Oct 4 | 6.86 ft | 6.87 ft | 6.87 ft |
| Oct 3 | 6.87 ft | 6.88 ft | 6.88 ft |
| Oct 2 | 6.87 ft | 6.88 ft | 6.89 ft |
| Oct 1 | 6.88 ft | 6.88 ft | 6.89 ft |
| Sep 30 | 6.88 ft | 6.89 ft | 6.90 ft |
| Sep 29 | 6.89 ft | 6.90 ft | 6.92 ft |
| Sep 28 | 6.91 ft | 6.92 ft | 6.94 ft |
| Sep 27 | 6.94 ft | 6.94 ft | 6.96 ft |
| Sep 26 | 6.95 ft | 6.96 ft | 6.98 ft |
| Sep 25 | 6.97 ft | 6.99 ft | 7.00 ft |
| Sep 24 | 7.00 ft | 7.01 ft | 7.02 ft |
| Sep 23 | 7.00 ft | 7.01 ft | 7.03 ft |
| Sep 22 | 7.01 ft | 7.02 ft | 7.03 ft |
| Sep 21 | 7.02 ft | 7.03 ft | 7.04 ft |
| Sep 20 | 7.02 ft | 7.04 ft | 7.06 ft |
| Sep 19 | 7.04 ft | 7.05 ft | 7.06 ft |
| Sep 18 | 7.05 ft | 7.07 ft | 7.08 ft |
| Sep 17 | 7.06 ft | 7.08 ft | 7.11 ft |
| Sep 16 | 7.10 ft | 7.11 ft | 7.13 ft |
| Sep 15 | 7.12 ft | 7.13 ft | 7.15 ft |
| Sep 14 | 7.12 ft | 7.14 ft | 7.15 ft |
| Sep 13 | 7.16 ft | 7.17 ft | 7.19 ft |
| Sep 12 | 7.19 ft | 7.21 ft | 7.22 ft |
| Sep 11 | 7.21 ft | 7.22 ft | 7.23 ft |
| Sep 10 | 7.22 ft | 7.24 ft | 7.25 ft |
| Sep 9 | 7.23 ft | 7.24 ft | 7.26 ft |
| Sep 8 | 7.23 ft | 7.24 ft | 7.25 ft |
Lake Tahoe level-history FAQ
How has Lake Tahoe water level changed over the last 30 days?
Across the available 30-day sensor series, the net change is -0.41 ft and the overall direction is falling.
What was the highest Lake Tahoe level in the last 30 days?
The highest reading in the available 30-day series is 7.26 ft.
What was the lowest Lake Tahoe level in the last 30 days?
The lowest reading in the available 30-day series is 6.85 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.