Norway is not cold: its temperature is very heavily moderated by the ocean. Trondheim's lowest mean daily minimum is 24.6 degrees F. The coldest place I could find there is Lomen, which mininums out at around 20 degrees F.

I am strongly pro-EV, and think they're broadly fine in every part of the US, and having just gotten back from Norway they're 100% on the right track, but they're nowhere near comparable to even my hometown of Minneapolis (8.8 degrees F lowest mean minimum).