Cold weather on bats to me starts in the lower 40's up here in ND, unless its a big game haha. Girls high school team broke 8 softball bats in the last two years. Mostly playing in the 30's and lower 40's. All composites. The Anderson bats, which we use now, (2018-2020) are absolute tanks and will take whatever the weather has to dish out. If its a big game and super cold, its up to my daughter to smash one of her good ones lol.