Yesterday afternoon's ride home was nice. They did a second pass on most of the MUP leaving a nice hard smooth snow that I could go fast on. They still haven't finished a section close to home so I had to get back on the road. I was impressed, I took a lane on a busier street had lots of people pass and no one honked. At -22C it was a bit colder than the ride in, but felt warmer.
This mornings ride was the coldest yet. -27C / -39 with the wind chill, since I was going against the wind it would have been even more of a wind chill. I think that temperature is close to the limit for me. I switched to patform pedals and wore my heavier winter boots, but my feet were still cold near the end of the 1 hour 8 min ride. I had to stop a few times, so I was probably outside for about 1h15m. I stayed on the road for the whole ride in so it would take less time.
I could have used another upperbody layer, though I wasn't entirely uncomfortable, as I swapped a poly fleece layer for my heavy cycling jersey with provides more wind protection. The inlet valves on my respirator started to ice up. One was stuck closed and when the other started freezing shut I had to stop to break the ice. The cold was too much for the adhesive on my helmet mirror, which fell off when I raised my goggles at one stop. One spot on my face below my goggles started getting cold, so I had to take the scarf off my stomach and put it around where my goggles and respirator meet.
The ride home is supposed to be warmer with a tail wind.