![A family resting in a couch enjoying the coolness of their Air conditioner.](https://mcmillinair.com/wp-content/uploads/2024/05/image7.jpg)
Arizona’s Dry Summer Climate and HVAC Performance
One-third of Arizona is arid (having little or no rain), while one-half is semiarid (receiving light rainfall). These conditions result in an average summer humidity of 20% (comfortable levels are between 40% and 60%). The high summer temperatures (up...