These levels are just below the long-term average recorded at 244.69 feet. Historically in January, Lake Ontario has seen levels reach a maximum of 246.59 in January 1946 and dip to a minimum of ...
Historically in January, Lake Ontario has seen levels reach a maximum of 246.59 in January 1946 and dip to a minimum of 242.16 feet in 1935. Facts about the Great Lakes:How deep are the lakes?