During the day it would be sunny in the 100's right up until around 5pm then the clouds would roll in and you would get the neatest storms... since the PHX are is "flat" we have Ravens which will hold the water and keep from flooding too much. I always loved these storms when we lived here before. The season typically starts in June and end late in August..Whats funny is we come home and last weekend we had a thunderstorm here and it reminded me of PHX...