Lake Superior has frozen over once since 1973, according to NOAA. The lake had 100% ice cover in 1996. Lake Michigan's ice cover high was 93.2% in 2014. Lake Huron had 98.2% ice cover in 1996.

Lake Erie continues to have the most ice, at 14.98% coverage, while Lake Huron is at 14.60%. The last time officials recorded 9% total ice coverage was on Jan. 17. Overall, the Great Lakes saw ...