Panther chameleons are not temperature sexed, and even temperatures in the mid-80s will not cause a high male-female ratio.
I'm sorry I can't give you an exact humidity number to go on, I don't think I measured it once during either of my clutches, I just mixed the media with water correctly and let there be condensation on the walls of the container. So it must have been high. Someone else will swing by to give you a figure, I'm sure.