I went to a December game in New York a few years ago. I will never ever forget the cold, it was absolutely unbearable. My wife was with me and she bailed out 15 minutes in to the game, she sat in the warm club area and drank a few beers while I valiantly stuck to the task. That said, we were naive and not dressed appropriately for the occasion. I would have no hesitation going again in any weather, it’s all about being layered up and ready for whatever the elements throw at you.