Other things factor into moves besides weather, even when weather is a factor. Certainly there is variability but it seems pretty clear that warmer, sunnier, areas are most desirable based on the costs of housing.
When you really start looking at people with true choices, i.e. the very rich, they want moderate weather with hot enough summers for water sports to be a viable activity, but nice enough that other outdoor activities aren't prohibitively hot and extreme weather isn't a concern.
A good example of this is Lake Oconee Georgia. It's basically bumfuck nowhere yet there's a plethora of multi-million dollar homes because the weather and geography are what falls in the ideal range for most people. So of course it's generally inaccessible to the average person but the super wealthy are gating it off and enjoying it.
When you really start looking at people with true choices, i.e. the very rich, they want moderate weather with hot enough summers for water sports to be a viable activity, but nice enough that other outdoor activities aren't prohibitively hot and extreme weather isn't a concern.
A good example of this is Lake Oconee Georgia. It's basically bumfuck nowhere yet there's a plethora of multi-million dollar homes because the weather and geography are what falls in the ideal range for most people. So of course it's generally inaccessible to the average person but the super wealthy are gating it off and enjoying it.