Hello 4x4Dodger (and everyone).
Thanks Lonny & Diane for the mention. This will be my fourth year working for Amazon's CamperForce.
http://www.interstellarorchard.com/2012/06/26/about-amazons-camperforce/ is the place to start, it gives an detailed overview of the program and includes things like climate information for the four locations and how the application process works (I update the post regularly, the most recent update was earlier this month). That article also links to every other post I've written about the program, from how to prepare your plumbing for cold weather to how much I earn from it every year.
I hope this helps. CamperForce isn't for everyone, but it's hard to complain about the money you can make there. Safe travels and happy trails!