I have 2 IBA'a and 2 SS bays. We have lots of sub zero nights. Two years ago we had 10 days in a row where the temp never went above zero - day or night. I never close due to temperature. The only thing that makes me close is if my
doors get a heavy ice accumulation on them or start freezing to the ground. Then I thaw them out and reopen. My
doors are my biggest issue in the cold weather. The DOT spreads salt and salt brine heavily during cold spells and it causes cars to get a white film on them. That gets people washing in the cold weather. The colder it is the busier I am. Propane bills are huge during those cold months, but we are busy, day and night. And I am busy too keeping the
doors working, water weeping, and things running. I spend a lot of time at the wash during the winter. On cold days I am there at dawn to get the
doors warmed up and working.