DEMOGRAPHICS / CLIMATE

Idaho’s mountainous topography produces an extremely diverse climate pattern. In general, as elevation increases, precipitation increases, and mean temperatures drop. On a different scale, the high mountains in eastern Idaho tend to hold back the cold winter air that predominates in Montana and Wyoming, giving the state higher mean temperatures than are found at the same latitude and elevation in those states and in more mid-continental locations.

National Weather Service
https://www.weather.gov/