How much of Lake Ontario is frozen?

Understanding the major effect of ice on the Great Lakes is crucial because it impacts a range of societal benefits provided by the lakes, from hydropower generation to commercial shipping to the fishing industry. The amount of ice cover varies from year to year, as well as how long it remains on the lakes. read more

Depending on how cold of a winter nearly all of Lake Ontario can get frozen. In the summer, it’s typically the warmest of all the Great Lakes and has some amazingly beautiful scenery on it. Definitely worth a visit. read more

Lake Ontario is the easternmost of the Great Lakes and the smallest in surface area (7,340 sq mi, 18,960 km 2), although it exceeds Lake Erie in volume (393 cu mi, 1,639 km 3). It is the 14th largest lake in the world. read more

Nearly 80 percent of Lake Ontario has frozen over, as plummeting temperatures have caused the great lakes to become encased in a near-record amount of ice. On Tuesday night, more than 4,700 square miles of ice formed over the Great Lakes, leaving just 20 percent of Lake Ontario open. read more