Planting Fruit trees in the heat of summer

Would like what people think of planting fruit trees in the hot humid south.  Should I go ahead?
We seem to get plenty of rain (so far) and I will put down compost and wood chips after planting.
I will plant pawpaw along a tree line and various types of persimmon (astringent and non).  Then some Asian Pear and Jujube.

I live a few hours south of you, in Georgia. My own two cents:

Make your mulch thick. REALLY water well, and often. The trees will get a lot of stress. Treat them like babies, with extra TLC.

I planted two apples, a Fuyu persimmon, and a peach tree in August 2019. They are all doing well, most have started producing fruit. But I had to really look after them with the water. Extra fertilizer, extra mulch.

I agree with Stacie as long as you are planting potted trees.
I have had poor results with anything bare root in the hot humid summers here. I am sure it could be done but bare root trees need quite a bit of time to develop feeder roots and the sweltering heat here dries the trunk out too fast.  
Make sure you have readily available water either way as the summer rains can stop and drought can set in without warning.

I have a soil that once you dig a hole it fills in with water. Called capillary rise.  My clay is consistently damp.
I have to dig a hole then put in gravel and plant on top of the gravel. I don't think the water will drop until August and then only several inches.  

i would say it depends on where you want to plant.  If you can keep them moist go for it, but make sure they won't get burnt. If were you want to plant out in the great bare open like I did you will scorch the baby leaves off.

I am growing them in tree pots in full sun now.  As for moisture I have to plant on mounds to make sure the trees do not drown.

Sounds like in your circumstances you will be fine. As others have said, it's not ideal—in warm zones like yours and mine fall planting tends to be the best—but as long as you baby them along a bit they should make it. My most vigorous fruit trees are definitely the fall-planted ones, but the few shrubs and things I have summer-planted have come through okay since I had quality potted stock.

It was 110 here the other day and we are always DRY….I has to transplant a few things given to me.  I transplant late or early make sure and water the foliage as well as the plant.  Plants lose a lot of moisture thru their leaves.. I spray my new transplant’s foliage 3-4 times a day and so far, so good! No losses trees or plants.