I was very unmotivated to get out in the dreary, grey, 22-degree weather (evidenced by the fact that I didn't finally force myself out until 3pm...).
I did a loop at the nearby Betasso trail and it was...GREAT! I had on the right layers to be comfortable, it was pretty (snowing very lightly), and quiet (hardly any other people).
I planned to just hike it but started off jogging on the initial downhill in order to stay warm -- then I continued jogging the whole way around (with several stops for photos).