Well, I measure temperatures a lot (retired engineer). Both of my cars' A/Cs
(R12 units) put out 42-45 degree air when they are recirculating on medium fan
speed, about 49-50 degrees when flowing through at 80 F outside.
My Hampton Bay (Home Depot) 5,000 btu window unit in the bedroom puts out 45-47
degree air with the temperature controller set at around 72 degrees and cycling
on and off.
My new 12,000 btu mini-split puts out about 50 degree air if the room is warmer
(76-77), and finally gets down to 46 degree output when it is controlling the
room at 74-75. I'm measuring it right now, as a matter of fact.