I am from NJ. I may have a chance to climb a couple of days at Tahquitz and Suicide. Maybe 1 day at each location. I was told May is a great month to go but that may not work out for me. Any advice on best time? If not May, June looks fine from what I read and researched. It really looks like May-Sept would be fine, albeit maybe a bit hot at times but certainly do-able. Keep in mind I am used to climbing through the hot humid Gunks summer.
I've climbed in the summer up there a bunch of times. It can get a little hot, yes, but it's a dry heat so probably was better than the worst-case Gunks scenario. Plus, there are a lot of routes at least at Tahquitz that get very little sun.