Ran 20.1 miles @ 8:00/mile pace.
Weather: Temps in upper teens, 25 mph winds, wind chill of zero. Sunny.
I felt good this morning, so opted to do my long run today instead of tomorrow. One big obstacle was the wind, combined with already cold temps. I was properly dressed and felt fine though. The only times it was really difficult were the stretches where I ran right into the wind. A nice long stretch of that was right at the end of the run.
Pace was pretty steady throughout the run, sans when the wind was head on. Even towards the end of the run my legs felt in good shape. It's worth noting that I made a pitstop at the house about 9.5 miles into the run so there was a little break there.