Not sure on location, but I argue with my wife about shade regularly. I spent 20 years in the Sacramento Valley where it regularly hit 90 to 100+. The hives were always out, in the fields, no shade. Maybe a bit of shade in the nut and fruit orchards, but not the row crops.
Maybe I'm delusional and they moved them before it got that hot, but I swear I remember seeing them out there.
Either way, I don't let my wife shade the bees when we've gotten warm here. Little fuckers need to take care of me, not the other way around