By this I mean like would they require things like fur lining or additional insulation? My understanding of wearing full plate, along with the usual worn gambeson and chain and such, is rather hot, uncomfortably so, so I was wondering if a kingdom in a colder region(where it often snows) would even need to consider deviating much from a more or less standard armour design of the 15th century(european as per usual, I know there are many kinds of designs but just go with what would've been the most 'typical' or 'average' at the time) to make sure that their units in full plate are protected from the cold.
Does full plate armour require additional design considerations for cold regions?