I've never heard of anyone doing this but there is no reason you couldn't. Put whiskey back into a white oak barrel and it will resume the aging process. I'm not quite sure what this will really tell you about your local weather conditions, but knock yourself out. There is no magic to the standard barrel size. Whiskey will age in any size barrel. Some math wizard here might be able to develop a ratio of internal surface area to volume, allowing you to compare a 53 gallon barrel to a smaller one. Remember too that real whiskey barrels are made with no glue, no finishes, no fasteners. They're just white oak that has been air or kiln dried, steamed to soften it for forming, held together by steel hoops, then charred on the inside. Remember too that most of them leak, at least a little, so don't set up your racks over the living room carpet.