Since nobody is answering, I'll give it a shot.
I haven't had mine through a summer yet, but it's in a non - air conditioned garage, sort of. It does have heat, though! I don't expect any problems with the electronics because of it. Most shops are garage environment anyway, all the heat and humidity of outdoors all summer long, without the fresh breezes! We use LOTS of power electronics in this environment. Shouldn't be a problem.