I agree; it’s not cold like the upper Midwest or New England. But the snow can stick around for weeks and months sometimes (I am lower elevation than Boise and we share the same storms).
I lived there and then up in McCall where there is real snow.
Idaho is more of a desert that calif. They will run out of water first.
Then power, I used to want to retire in idaho, not any more. They are installing air heat pumps in New builds. A disaster waiting to happen in a cold climate. Ask Texas about their air source heat pumps when it Got below 40