Winter storage in cold climate

We live near Longmont. We just store ours outside at our home, and we have a mobile tech come to winterize it for us. Sure, indoors would be nicer but that's not an option just yet for us. Some of our neighbors utilize covers to help with the elements, we haven't gotten one yet but have been thinking about it. IMO, the sun here does a lot more damage than the winter weather. We've had our unit a bit over a year and we can already see some affects of the sun, like on the tires and caulking on the side that faces south. We've also had no problem with rodents with this unit or our last one that was also parked outside, but we also have dogs that run in the yard, and regular pest control service for the house that includes rodents.

There's lots of RV dealers in Longmont so you could have one of them winterize it too, we use Windish because we purchased our unit there.