Originally Posted by
Machka
I know ... I lived in northern Alberta for 11 years. -30 to -60 for weeks on end in the winter was not unusual.
Come on. Weeks at at time? Did you live in Ft Vermillion or something? Even Edmonton has never seen -60, let alone for "weeks at a time". In my career, I have worked all over the Arctic including Alert, Resolute and Polaris and have never seen more than a couple of days at that temperature.