When the thermometer says this:
You should only go outside looking like this:
It's a good idea to make the "hottest" dish you know (Chiang-Mai Noodles):
You should recognize you're not the only one feeling rather chilled:
It's also a good time to don the biggest, most ill-fitting wool sweater you've got:
But do try not to run around ala Colin Firth in Love Actually yelling "@#(*)%! it's freezing!" We already know that.