Avram lytton

Ouch, here in Calgary it sometimes sinks to around -25/30 and in the praires with the wind it's really nasty. It's better in the wooded foothills though. I figured that "Frozen" was probably around zero, however these terms must refer to a range of temperatures and with historical records claiming around -15, I'm not sure what to set the operation temp to. I guess I'm getting a little fussy here though, I might just settle with "frozen".

I am currently working on an operation that takes place during the Finno-Russian winter war of 1939-40, however, I'm a bit unsure as to the vague temperature definitions of "Frozen" and "Extreme cold" does anyone know roughly what,in celsius, that would translate into?

yeah I might be interested too.