On the 4th of July the temps dropped from well over 100, to the 70s, and it rained. We spent most of the day just sitting under our covered patio watching the rain and wild birds, and had our pets out there with us, too. We grilled, made home made ice cream, and cut open a water melon. All in all a beautiful day, could not have been on a better day of the week since so many people are off work then.
Back in the 1970s when my family moved here, I remember many summer evenings it stormed and the temps dropped dramatically. As the city grew, the "heat dome" seemed to keep away more and more of the cooling storms. Soon, we were lucky to see it go below 100 even at night, when normally the desert cools off a lot once the sun goes down.
We're back up to over 100 during the day again, and it's expected to be around or even over 110 next week. Storms are more frequently in the forecast this time of year, but they often stop short of the city, particularly the west side which stays drier. We are lucky to be far enough East that we do get some of the monsoon. When my aunt visited a couple years ago from out of state she even noticed how the landscape was browner on the west side. This is definitely not the time of year we're happy to be here, (well except for the 4th of July when we had freak nice weather!).
But I recall a few times in the 1990s when it was 118, 120, even 122 degrees! So any summer we don't go over 115 is considered good I guess.