When to go to Phoenix
You can avoid scorching heat from mid-October to late March. High winter temperatures often hover around 70 degrees, but a cold spell can bring lows to freezing. Summer is definitely the time to find travel deals; the hottest month is June (120 degrees is rare but not unheard of). And while most people will tell you “It’s a dry heat,” the monsoon season can bring thundershowers and humidity to 105-degree days from July through September.