Comfortable temperature range for sugar gliders are 70-90, with 80-85 being the preferred from what I can find.
I don't know about Surprise,AZ, I lived in AJ (Apache Junction) and worked in Gilbert when I lived in AZ. I'm pretty sure the temps would be similar, but I know elevations can make a difference, although Surprise is probably a valley as well.
I only lived there from February to November and the heat in the summer was at max in the hundred and teens, 112-115, possibly higher, though I cannot remember exactly.
I hope I have helped some.
I do miss living in AZ, if I could have worked things out there I would have stayed. Although my family is here in MD and it's nice to see them (most of the time, lol).
1 dog, (Willow)
3 Sugies, (Ollie, Lulu, & Skadoosh)