I read this when I was about nine years old (12 years ago). This kid and his family were all living in this crappy little hot-as-baalls apartment in some southern region. It might have been postwar, or after a nuke, or something like that. Anyway most of the family packs up and heads north to an old house and the kid’s all amazed because it still snows up there. I’ve been racking my brain for about ten years trying to remember that book because it was really good when I was little! The title might have had sun or red in it, and the cover was red or yellow.