ive been keeping some centennials in the car lately here in colorado and havent had a problem yet.

over break we played on my nephews new table in the garage with a broken window. It was cold as hell and it didnt make a difference.

could they break? maybe, but i doubt it

No idea, but I’d let them get to approximately room temperature before use personally. Seeing your post brought back a Denver golf memory. I played a lot at the public course East of Felt at Colorado and Hampden. Playing in the winter and a guy had some of the mail order balls - I think the ones that advertised they were non conforming under USGA rules. Old golfers might remember the print ads. They were solid balls, and golf ball technology 40 or so years ago wasn’t what it is today, but even then the mail order ones weren’t as good as a Top Flite I don’t think. After two or three cracked into several pieces like glass in the cold weather he was sad.