The middle of the country is often the worst. Frozen roads make it hard both to get trucks to the warehouse, and then to ship to dealers during the winter months. It happens due to cheap land and cheap labor. But that advantage is offset if you can't efficiently turn your inventory for a third of a year.
Conversely in the Arctic, you have to wait for Frozen roads to get truck shipments. Can't think of any place in North America where Winter weather causes more than a couple of days delays during the year. (the southern US seldom gets winter weather, and so they do get thrown for a loop when it arrived)


