> I definitely know more people that have experienced -40C in their life than ones that don't. I have and I do not live in the prairies. Yes, the -40 is what I

> I definitely know more people that have experienced -40C in their life than ones that don't. I have and I do not live in the prairies. Yes, the -40 is what I was using for my differentiator. You provided an example of a location that didn't come anywhere close to -40. Pretty much everyone I know complains about it being -40 out, but it never actually is (they're all talking about -30 with a strong windchill). It is particularly egregious to me, as the difference between -30 and -40 is as significant as -15 (standard chilly) and -25 ("ok I hope there's no wind today"). And when it comes to a technical discussion about something like battery temperature, those few degrees matter a lot. > I wonder what you call the southern half of Quebec. Quebec goes way up north. Southern half of Quebec would exclude almost the entire population of Quebec. Yes, I was not being geographically precise - I was mostly referring to the St Lawrence Valley, which contains most of Quebec's population. Obviously Saguenay, etc would have experienced -40. I basically just checked environment Canada's historic records for Montreal, Quebec, and Trois Riviere. It wasn't intended to be terribly precise.