When it hits 105°F, your AC unit works harder than a desert lizard on a hot...

https://bestutahrealestate.com/news/st-george/resources/top-ac-companies-in-st-george-for-homebuyers

When it hits 105°F, your AC unit works harder than a desert lizard on a hot rock. You definitely do not want to be stuck in a sweltering house from June through September