In reply to GraMc:
OK, but September is a tricky month out west for world class destinations as well. I live here.
Yosemite - Too hot for me.
Tuolumne - Perfect time
High Sierras - Incredible Hulk, Whitney Portal etc. - Good time - possible early storms
JTree - Too hot
Indian Creek/Moab - Too hot
Ten Sleep - Perfect time. World class? - maybe not, but tons of partners available at The Rock Ranch Campground
Rifle - Perfect time - World class maybe for 5.12+ and above. Easy to find partners.
Red Rock Canyon (Vegas) - Too hot
Can't think of any other venues I'd call world class. Smith Rock? Black Canyon? - Not climbed at either.
Hope this helps.