These low rainfall totals correspond to the second lightest blue, light blue and light orange on this map respectively.
Arizona's early Mormon pioneers knew what they were doing when they picked the Mesa area to settle over nearby Phoenix. That's some dry country, but not compared to Soddie Arabia.
I am from Phoenix. If it weren’t for Saguaro Lake, Mesa would not be there. Nor would any of the crops planted in the area. Or any of the cattle that my friend’s family raises. Phoenix put a ban on installing grass with new construction (too many snowbirds) back in the 90’s because the average humidity had increased enough to jeopardize some of the crops.
This is a testimony as to what Saudi will need to do in order to support any resort city construction.