May weather forecast and climate
Arizona, USA

Flag of Arizona, USA
Flag of Arizona, USA

Weather in May

May is sunny in Arizona with long daylight hours and mild, comfortable nights. The average high temperatures reach up to 98°F (36.7°C) in the west in places like Bulkhead City, Parker, and Yuma. Phoenix records average temperatures between 69°F (20.6°C) to 95°F (35°C), while Tucson in the south is between 64°F (17.8°C) to 91°F (32.8°C). Nights vary between 35°F (1.7°C) to 70°F (21.1°C), with the northern areas occasionally on the verge of freezing.
The sun stays on the horizon for at least 8 hours a day, yet evenings see a rapid cool down under the influence of the clear skies. The smell of the blooming flowers draws the attention of swallowtails in the gardens and particularly, in the wild. National parks and forests see a rise in tourist footfall in the comfortable spring weather. The northern portion is home to pine forests, which have lower temperatures than the southern desert lands and attract considerable interest from visitors. Expect the temperatures to increase gradually with each passing day in May in Arizona.
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