For anyone here with kids younger than mine:
Word to the wise. In 20 years no one is going to remember trick or treating on a dry 52 degree day. You will ALWAYS fondly remember the time you went out in the snow and brought home a HAUL because of all the delicate doilies who kept their equally soft kids home.
We were out there. Lousey days bring in big hauls as folks unload their bowls thinking attendance will be down. At our house, near closing time, I have the last visitor(s) open up their treat bags and I unload the bowl. Their eyes are always priceless.