I expect BRFNK has the same issue I do-----humidity. Our fiver is well insulated and with it being under a shelter out of the sun the a/c's only run periodically. I try to maintain 50 to 60% humidity by adjusting the temp. Over many years of doing so I have been successful in doing this over the summer months.
I don't sweat a few extra bucks over the summer since we are not home that much anyway.