Louie,
Cool nights... windbreakers or long sleeve shirts, sweatshirts, those types of clothes. Shorts are good for the northerners but that's not a very good indicator.... we have people who wear shorts when there's 2 feet of snow on the ground... Day times will be warm, but again, that's subjective. I would bring some t-shirts, some long sleeve shirts and long pants... can't go wrong with that.
I'll put more of an answer in another post so everyone see's it......