Lake Superior sets a new record for winter ice cover, other lakes are icing up fast.
Lake Superior is 92 percent frozen on the surface, breaking a 20-year-old record of 91 percent set on Feb. 5, 1994. Temperatures continue well below freezing. Have a look at this graph:
As far as all the lakes go, here is the plot of historical maximums:
The number to break is 94.7, set in 1979, which is also a year of some of the worst winter weather ever in the USA, and coincidentally, the peak year year when Arctic sea ice trends were begun via satellite measurements. Right now we are at 78.5%. Just a week ago the ice cover was 66 percent.
Source image (click for update) http://www.glerl.noaa.gov/res/glcfs/glcfs.php?lake=l&ext=ice&type=N&hr=00
UPDATE: this graph from the Canadian Ice Service shows how much above the median the Great lakes have been:
This graph shows by year, 2014 is now in third place:
Great Lakes Environmental Research Laboratory
Canadian Ice Service: