Houston is older than us in average age. You think that is gonna slow them down? Age is literally the dumbest thing to go by.
And please. Seattle is Facking beautiful in the summer. Your rain comment is really quite exaggerated. It hardly ever rains in the summer. Other seasons ... sure. Mountains, forests, oceans, rivers .... all right by us.
https://realestate.usnews.com/places/rankings/best-places-to-live