I won't argue with your experience at that location, but even in Scotland, for most of the population there is no month when the average low temperature is belo

I won't argue with your experience at that location, but even in Scotland, for most of the population there is no month when the average low temperature is below freezing. Edinburgh, e.g., is barely colder in January than Memphis Tennessee, in the US. To the point about air conditioning, however, Summer is a whole different matter. Memphis in July is easily 15C, and maybe more, warmer than Edinburgh.