Yeah, you can keep the humidity and any snow you get! I grew up in the midwest, very familiar and no thank youI can only imagine! We were in Vegas in June 2017 - they were breaking heat records while we were there. Luckily, we wore our sun gear - the pants/shirts with the light sun protection fabric and they were so helpful, as were the light straw hats we had...friends that saw pics, were like"why long sleeves/pants in the desert?".... but we would have baked if we had not had those on during the outdoor hiking tours.
And, we don't have quite the temp extremes here, in Ohio, yet I was frantic to get up shade cloth last summer as the south side of the run was horrendously hot. Adding the 6' tall shade cloth to the south and SE corner of the run drastically reduced the temps for the girls, so your all-the-time-sunny-summers are certainly hotter than here (but less humid)!
Guess you should begin freezing large chunks of ice for those girls to put into pans of water they can walk through. Last year, we would put a galvanized pan of water with ice under the coop decking. It was placed on some blocks. When I would come into the run, always made me laugh bc there would usually be a chicken standing in the pan, but I could only see their legs...No body.
Any garden food plants that can be grown successfully in that heat and sun (without shade cloth)?

I usually run my hose from 330 to 5 during the hot days and I take the ice the freezer makes out and dump it in the puddle around 4, hottest part of the day here.
The summer sun is brutal so I don't really garden much then, just maintain the trees and shrubs. Corn can be grown for a fall harvest though. Around the time everyone else is finishing their harvests and prepping for winter I'm gearing up for planting again.