Notes
Having run a few times in the 70 degree range, it's pretty upsetting to suddenly be running in the 40s and lower again. Snow flurries all day, and then the sun came out right before I ran. It flurried a little during, but it stopped eventually.
Today's run felt very good. I went down Route 100 to the Warren School trying to hold 160 bpm after a 1.25 mile warm-up at 145 bpm. It was much easier to do this today than it was the last time I ran this route briskly. My pace slowed by about 10 seconds after the first 4 miles. This may have been due to the hilly conditions for the last 3 miles of the run rather than being tired, because I felt like I could have gone another couple miles at the same pace.