Sudden chill.
I can't say that this is my favorite weather, by any stretch of any imagination. Though the dog has become Miss Stinkalot again, I have been sorely tempted to invite her into the living room's easy chair simply so that I can cadge her warmth. It's not quite 5º (much less -11º) in the house, and for that I'm thankful. It's just significantly colder than it was this time last night, and cold enough that slipping back out of the next in time for morning office hours isn't going to be easy.