This might seem a bit superficial, but one of the reasons I fear a move to Canada is the weather; not the weather per se, but whether someone like me born in a tropical country would adjust well to the cold? I'm concerned that I would relapse into a depression ushered in by the winter blues (used to be depressed in my 20s, not sure why, it went away after 30, not sure why either), and lose my productivity. As a separate topic, it's slightly unsettling how much the ability to work hard defines many of us.
For context, I was born in South India and currently live + work in Hong Kong. In Hong Kong, the temperature is around the same number as you see for, say, Victoria, BC, except for that the former is in Celsius while the latter is in Fahrenheit! :-)