I spent the ‘70s in Northern Canada. Several winters saw weeks of -40 and colder. There is certainly an unearthly quality to a -51 sunrise at 9:30 AM.
Everything is absolutely still.
You had a sunrise? You lucky dog!
I saw -60 in Alaska, but there was no sunrise. With the windchill it was -140. I remember the silence, punctuated by shattering cracks. Everything was brittle as glass. Even with all our arctic gear, we only went out for 15 minutes before everything froze solid. It was all we could do to just keep all the equipment running. The heaters kept our maintenance barns a comfortable 20 degrees. I can’t imagine doing that these days. My arthritis would leave me completely disabled.
Glad I live somewhere we consider 60 degrees cold. I’ll be happy if I never see snow again, though the harsh conditions did promote independence.