My suggestion would be to keep the waxes, LSP's, polishes, etc in the house year round. You get humidity in NY which isn't any better than freezing temps for these products. Even during a detail, in the hot humid summer, I keep my products inside until it's time to use them. Then right back inside when done and grab the products for the next step. I am probably being overly anal, but it's piece of mind for me anyways. The only thing I keep in the garage from spring to fall is my gallon of DG902.