I’m so sorry for your loss Carolyn.
I do love Arizona but I’m sure the heat would eventually catch up with me.
We went to Sedona and Oak Creek this summer and it wasn’t terribly bad as far as heat goes.
You could go up to Cottonwood or Prescott or even over into the White Mountains. We are a beautiful and very diverse state, people think we are all desert, but there is actually much, much more to AZ than desert.