Country
Daily records since 1988 · Level today: 2,414.90 ft
Across 22 complete years, 2001 had the lowest average level (2,408.67 ft) and 2014 the highest (2,414.99 ft).
On average the lake is lowest in June (2,410.80 ft) and highest in October (2,414.35 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 (11,540 rows; credit the original agencies listed below)