In humid air, cooling is the second job
A vehicle air conditioner does two things at once, and in a dry climate only one of them is noticeable.
It cools the air, and it removes water from it. Warm air holds a great deal of moisture, and every bit of that has to be condensed out on the evaporator before the system can make progress on temperature. The water running out from under a parked car on a summer afternoon is the visible part of that work.
In humid air the moisture half consumes a real share of the system's capacity. Which means a system that is slightly down on performance will cope in a dry climate and will struggle here, on the same fault, because there is less margin left after the dehumidifying is done.
The practical consequence is that "it is not as cold as it used to be" deserves attention sooner here than it would elsewhere. A system that is merely adequate in June will not be adequate in August.
What that changes about how you use it
Two habits help and neither costs anything.
Run on fresh air until the cabin is close to outside temperature, then switch to recirculation. Recirculating already-dried cabin air gives the system less water to deal with and it will cool further.
Second, if the windows fog on a humid morning, that is the system working rather than failing.
What usually goes wrong
The national A/C service page covers the common faults and why a recharge without finding the leak is temporary.
Worth ruling out first here: a clogged cabin air filter, since reduced airflow presents as weak cooling, and a blocked evaporator drain, which in this climate has more water to get rid of than most.
About this store
The Jonesboro store runs seventeen services and is managed by Tony Kuehnel.
See the national A/C service page for all 33 locations.