Country
Daily records since 1987 · Level today: 133.78 ft
Across 37 complete years, 1994 had the lowest average level (126.22 ft) and 2025 the highest (134.23 ft).
On average the lake is lowest in July (130.98 ft) and highest in February (133.83 ft).
Loading chart…
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 (13,898 rows; credit the original agencies listed below)