Basement Cigar Storage Question

I wouldn't worry about temp. I would worry about keeping the humidity in check.

I had...had a Pepsi cooler converted to a humidor in my basement. I got away from cigars for a while and neglected to keep an eye on things for a couple months and ended up throwing out around 200 sticks because of mold. 80 of them were 2002 Liberty's. I still wake up in cold sweats at night over that one.