My husband and I are plannng a road trip. We live on the coast in northern Calif, and are looking at leaving around the first part of May 08. Going over to Nevada then down to Arizona. We will be camping. I figured out years ago if we camped we could be gone for 5 weeks instead of 1. Could I get some information about the weater in May? Also camp grounds. I think there is a KOA there. It's been raining here for so long now I can't wait to hit the road.