Also, the fridge doors are the warmest place, so if you store your milk in the door it will go bad faster (unless you have one of those nifty enclosed shelves that have cold air blown directly into it to keep milk cold).
Fridge temp is about 36-38, and we do have one of those enclosed compartments on the door where the cold air is blown directly in.
It's a pretty fancy fridge, so far as fridges go!