In April, Lake Erie saw a minimum water level of 174.22 meters and reached a maximum level of 174.39 meters. These levels are around the long-term average level recorded at 174.26 meters.

The U.S. Army Corps of Engineers reported Great Lakes water levels for the months of June and July showed a mix of rising and dropping levels.

In April, Lake Erie saw a minimum water level of 174.22 meters and reached a maximum level of 174.39 meters. These levels are around the long-term average level recorded at 174.26 meters.

Lake Ontario is the only lake seeing a higher water level — by 6 inches — this month than 2024. Compared to May 2025, the Great Lakes' water levels have slightly increased.

In December, Lake Michigan-Huron had a minimum level of 578.08 feet and a maximum level of 578.38 feet. These levels are just below the long-term average for December recorded at 578.61 feet.