I would not suggest that. Cigars are like a fine wine, they don't react well to temp. fluxuations. Your cigars are better off staying at 74°, rather than swinging from 65°-75° all the time. If you leave town or forget, your cigars will get warmer again. Yes, they do age better at 65°, so you should do the cooler idea Edisonbird put together.
Jack