Many years ago, HH used to be open every day in June, until we had an unusually cool June one year that made the park pretty empty. Beginning the very next year and to this day HH is open only on weekends for most of June. This Christmas Eve was the coldest in Philly's recorded history, a record breaker. While New Years is supposed to warm back up into the 50's its also going to be rainy which will also hurt attendance. It doesn't look good.