Interesting. Nevertheless ... think of everywhere in the USA that you think is cold (outside of Alaska) ... almost all of Canada is colder than that (Vancouver and coastal BC being the primary exception).
Middle Island, in Lake Erie: 41.682534, -82.683679
(I was curious myself, so I went digging in Apple Maps.)
(Update: realized my NE corner coordinates were in fact a little inside the border, so grabbed ones even farther north.)
Ketchikan is not very cold at all. It is 2C right now, very coastal BC-like temperature on the panhandle. On average, people in North Dakota and Minnesota are probably colder than people in Alaska (Fargo at -7c vs Anchorage at -6c). For top ten coldest American cities, only Fairbanks makes the list, the rest are in Minnesota or the Dakotas: https://worldpopulationreview.com/us-city-rankings/coldest-c...
Average low °C Dec-Feb:
Moscow −6.5, −8.7, −8.8
Ottawa −9.2, −14.4, −12.5
Yet Moscow is over 1000km farther north.
Europe gets warm moist weather blowing in from the Atlantic. Warm Pacific weather gets blocked by the rockies in North America.
My point was just that people move to the Russian South for mild winters, and it does have mild winters by Canadian standards.