Don't the higher number of 85 degrees point to a more true tropical climate, there a lot of cities near the Equator that have this kind of climate, and also a lot of bugs-- ticks, spiders, mosquitoes, parasitic flies like the Tsetse Fly, leeches, etc. Are we going to start seeing exotic vermin on our shores and in our homes soon?
These bugs do not like extreme heat, what they want is warm overnights, very humid, very wet and frequently cloudy weather. That's what a true tropical climate gives them.