The Guardian dedicates an article to where you can best live in the U.S. when climate change gets serious. Broadly speaking you can best move to a band roughly above the 42nd parallel.
Places close to a reliable source of water without being flood-prone score high. Seattle, Buffalo, New York (with flood defenses), and Duluth, Minnesota are mentioned as places you might want to be at the end of the 21st century. Places that score low are the south-west and south-east because they will be baked. Southern Florida will be submerged and the Gulf coast will be battered by hurricanes.