I lived in Lexington -- Kentucky's other big city -- for a couple of years. It should be similar. It's about 80 miles away.
Kentucky has winter, but a mild one compared to places further north, but certainly colder than Phoenix. The summers can be hot -- but not Arizona hot -- and somewhat humid, but spring arrives early and fall comes late. It will certainly be more humid than Phoenix. Some Springs have been quite wet. Winters can be overcast.
The best part of Kentucky is its people -- genuine, friendly, empathetic, enthusiastic. Kentucky is a big sports state. You're likely to be infected by the zeal with which Kentuckians take their college sports. The University of Louisville is right there, but even in Louisville, the University of Kentucky in Lexington has some strong fans. Churchhill Downs is a wonderful track. Don't plan on seeing the Kentucky Derby there. The tickets are passed down from generation to generation. But only about 20 per cent of the Derby activities actually occur at the Downs. And you can watch the activities of the day -- ALL day long on local television. There are also Derby parties throughout the state. It's a fun time -- with the big race almost a sidelight.
The art scene is fairly active, but you know its not Manhattan's East Village. Road shows stop in Lexington. I assume they stop in Louisville as well. Lousiville is a southern city, but it is influenced by the midwest as well. The accent is stronger in Lexington. In Louisville, it is diluted with Midwestern twang.
And you pronounce Louisville this way: Loo-uh-vul. You can add a little authenticity by pronouncing it as if you have two or three marbles in your mouth.
There are many lakes and forests in Western Kentucky to explore for hiking, outdoors, biking, etc. In fact, all over Kentucky.