There’s no messing around when it comes to the Arizona heat, and on average, July is the Valley’s hottest month, with an average high temperature of 105 degrees. That being said, no one wants to end up with a broken air conditioner. To make sure you aren’t stuck without A/C during the upcoming summer months that are just going to get hotter, look out for these signs and follow these tips to make sure your A/C is working as efficiently as possible.