John Bingham has a blog post today with some good advice about what to wear in the cold weather.
The rule of thumb is to dress for a temperature that is about 15 degrees warmer than what the thermometer says, because you’re going to warm up as you run. So, if it’s 35 degrees outside, dress like you would to stand around at 50 degrees. You’ll be a bit chilly when you start, but you’ll warm up nicely in just a few minutes.
That’s great advice — it’s so easy to throw on everything you own so there’s no pain the first few miles, but it totally sucks when your sweating inside of your three tight layers.