I live in a place where there is ice outside all winter. During winter the cold air can't hold moisture as much as hot air and most of the days are at 100% humi

I live in a place where there is ice outside all winter. During winter the cold air can't hold moisture as much as hot air and most of the days are at 100% humidity even at -20 because the air simply can't hold more. I might try this out on the deck next season but I don't assume ice is just going to sublimate away because it's literally outside all winter and doesn't go anywhere.