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World Travel Guide > Guides > North America > United States of America > Arizona

Arizona Weather, climate and geography

Weather and climate

Best time to visit

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.

Required clothing

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