Originally Posted by losiglow

Getting your AC ice cold isn't all that hard. The trick is finding the sweet spot with refrigirant pressure by not having either too little or too much refrigirant in the system.

It's normal for AC temps to get slightly higher when idling since heat dispersion is reduced when less air is flowing through the condenser. It shouldn't be too dramatic though, maybe a few degrees. Get a thermometer (little stick type that they sell at auto parts stores) and stick it in your cars vent. Unless the outside temp is 100+, the AC temp should be < 45F in most cases, even at idle. Also get a pressure gauge to check the refrigirant level, and find out what the pressure spec is for your car.