My wakeup HR was down a point to 50. I felt pretty good and went out running. The temperature was about 39F, but there was a 20 or so mph cold wind. I felt comfortable in my 3 layers when I left but was sweating by the time I finished. I normally would unzip my wind breaker, or take it off, when I begin to sweat, but I kept it on today due to the wind.
Going against the wind was tiring but going with a 20 mph tailwind was great!