Picking the Winter solstice as the starting day of my next training block leads to some cold sessions. At least I know each day from now leads to more sunlight. The first three days all started well before dawn. The temperature was below freezing point. You know it's cold when you finish your run with ice on your beanie and beard.
Missing Summer, but still getting out for the runs. It is definitely easier to run faster when the temperature doesn't start with a minus. When it turns this cold, a bit of my top end speed and stamina seems to be sucked out. As a result my interval session wasn't up to where I wanted. I was happy to find the next day's 20km was around the required pace.