Nord is cold, and the further north you go, the colder it gets. The very north of Nord is so cold that everything is covered in ice all the year round and the people there drink strong spirits all the time just to keep warm. Alcoholism is considered a general life hazard of anyone living within the northernmost regions of Nord.
The further south you go in Nord, the more temperate (i.e., wet) the weather becomes. The southern regions even occasionally have summers, although they don’t last very long and can be rained out completely during some years. This region is known for small principalities that have only survived because they are far too small to to be worth the bother of invading.