From the manufacturer: "Yep! We are in MN and our grills stay covered all winter long with these covers. If they can, I would recommend bringing the grill in for the winter, but if they need to keep it outside, this cover will protect it.
The cover has a slightly elastic bottom so it fits over the grill and then tightens at the bottom."
Answered on 11/13/2013 by Steve from Homeclick