We are getting unusually cold conditions for this part of the world, so I'm not used to this.

It was -15C during most of my morning ride, and -11 on the way home. No snow on the road, and almost no ice.

What has shocked me is how slow I was. I'd expect to do the 27.5 mile trip in 1hr40, but it took me 2 hours on the way in and a bit more on the way home. I'm utterly exhausted today (took the train instead of riding). Coupled with that, my eyes are sore, like I've had a flash burn in the face.

Could the slow riding and exhaustion just be because of the cold? I was well wrapped up and only my toes got a little cold.