Lake Michigan-Huron water levels: 1918-2022

Here's how lake levels have changed on Lake Huron and Lake Michigan since 1918. The graph includes monthly averages, annual averages and the all-time average.

Lake Huron and Michigan are grouped together as one for lake level data by GLERL/NOAA.
Chart: Taylor DesOrmeau Source: GLERL/NOAA Get the data