Impressive! Found a good paper for before this period
‘A Historical perspective of the 1976-77 Lake Michigan Ice Cover” R. A. Assel and F. H. Quinn (1979):
“the winter of 1976–77 was one of the four coldest in the past 80 years. The analysis also shows that the past 15–20 winters have been colder than the normal established by the 80-year data base.”
This graph gives a good feel for how uniquely cold the weather has been in the midwest this year. Great Lakes ice cover is more than double the previous record.