My former in-laws lived in Orange County, California. When visiting Hawaii, they always made a point of loudly saying that the humidity and heat were intolerable. I am sure they would have complained bitterly about cold weather in colder climates.
Given the importance of factors like crime, city/town/village size, cost of living, and more, I really don't see any justification in making climate one's top priority in searching for a retirement home, at all. None of the responses to my thread have seemed to present significant reasons for doing so, IMO. But then, we are all different, I suppose...