I guess it's down to the environment you grew up in and a bit of personal preference too. I love the cooler months of spring and autumn but both the heat in the summer and the very cold winter make me sluggish, I prefer the heat though over the cold; get the loungers out, some beers, bbq time
I genuinely don't understand, no disrespect intended but why do you remain there? Could you not just move south to a warmer climate? -39c just sounds uninhabitable.