I'm sorry, but when it hurts to breathe and my eyes freeze while walking a block and a half to my car in the morning for a month, I'm calling BS on this. You also need to consider that communities that aren't prepared for -40 degree F+ windchill are not going to react the same as communities that are. It's no different than an inch of snow shutting down the city in Texas.
Call BS on what, that I am right? The bolded is the heart of it and something I already said. Humans are perfectly capable of surviving functionally in places when ~when it hurts to breathe and my eyes freeze while walking a block and a half to my car in the morning for a month~. Your complaints, the degree to which you emphasize them, are a little histrionic when people have lived in climates with weather matching and exceeding the ranges of the area you described. I am not saying that sudden shifts in temperature do not have effects on the economy.