Ours is lightweight, thank goodness, but has a bit of icy also. As soon as I shovel the thin coating left behind is very slippery.
Stuck a yardstick in the front yard - 13 inches.
There is 1/4 inch on my den floor right now. LOL
We were just visited by a pair of young entrepreneurs who dug us out after the plow went through. They did a fantastic job!