Originally Posted by
thebigspendur
Because too much of a good thing is bad, even Ice-Cream.
When you overload the air with moisture it feels like a steam bath. In smaller quantities it does cool the air. It's very possible if you didn't have the moisture the heat would increase.
In coastal areas come the afternoon you often times (not always) get an onshore breeze in the afternoon or evening which helps to cool the land. This has to do with the heating or the land as opposed to the ocean absorbing the heat much better and the pressure differences it causes. There is this whole thing about on shore and offshore air flow.
Of course in a place like Florida I doubt any onshore breeze cools anything it just brings in much more humid air.
I suspect with the size of the Great lakes something similar happens.
