These are great guidelines and It can get really hot in AZ. Having recently moved to the middle of America I finally found out what a dry heat was as they use to say all the time. Maybe I got used to it being 110° give or take. When we moved to an area with lower temperatures I thought it would be great for hiking. 80° in Minnesota makes me sweat three times more than I ever did in 110° AZ.

So as strange as it sounds I found hiking in AZ heat more comfortable(as in my body staying drier) than I do living with humidity. Just remember to wear sun screen and drink lots of water. A good hat will help out as well.

D