Country
Daily records since 2005 · Level today: 996.34 ft
Across 20 complete years, 2014 had the lowest average level (985.26 ft) and 2016 the highest (998.95 ft).
On average the lake is lowest in September (995.57 ft) and highest in June (996.91 ft).
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One bar per year from the lowest to the highest daily level, with the year's average. Years with no bar have no daily record in the agency archive.
Years ranked by their lowest daily level.
Levels in feet. Partial years show the number of days with data.
Daily levels as CSV (7,642 rows; credit the original agencies listed below)