Arizona Travel Guide - Climate

Mostly warm and comfortable all year round. Mountainous areas, such as Flagstaff at 2,134m (7,000ft), are colder, particularly in winter, and in summer, there are cool mountain breezes. Desert temperatures range from hot during the day to cold at night.

Lightweight cotton clothing for all seasons, with a wrap for cool nights. Warmer clothing is needed in the mountains, especially in the ski areas.