Shade is wonderful in hot weather, and in Arizona can even be literally lifesaving. Because it’s a “dry heat” if it’s 100 in the sun it will be at least 10 degrees cooler in the shade. Just walking under a shady tree will cool you off right away.
This is one of my favorite trees on our ranch. It is a desert hackberry and probably around 60 years old. Every time I walk under it, it is like meeting an old friend.