I just switched from working graveyard shift in the burbs to working day shift in downtown Tampa. The only blessing is that I got a covered garage space so my car isn't 160 degrees when I get to it.
Plus, if I leave my Zune or DH in the car during the day, they won't get broiled. Working nights, I had to make sure I took everything with me before parking in the driveway in the morning. (Like most folks in FL, all my crap gets stored in the garage for lack of a basement or functional attic, so no room for cars.)
To the OP: I have also noticed the discrepancy between the reported ambient temp in the cluster and the AAT on the DH. Never have understood that one.