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Weather.com brings you the most accurate monthly weather forecast for Phoenix, AZ with average/record and high/low temperatures, precipitation and more.
The hottest month of the year in Phoenix is July, with an average high of 106°F and low of 85°F. The cool season lasts for 3.2 months, from November 20 to February 26, with an average daily high temperature below 74°F. The coldest month of the year in Phoenix is December, with an average low of 46°F and high of 66°F.
The average wind speed is 12 kph (7 mph). August is generally a scorchingly hot month. The average temperature is of 34.6 °C (94 °F), with a minimum of 28.7 °C (83.6 °F) and a maximum of 40.6 °C (105.1 °F). On the coldest nights of the month, the temperature usually drops to around 23.5 °C (74 °F).
Phoenix Temperatures: Averages by Month. The numbers here tell you how hot and cold the weather usually is in Phoenix, Arizona during each month of the year. The average high and low temperatures are listed below by month and annually for Phoenix, in both degrees Fahrenheit and Celsius.
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Hottest Month: July (96 °F avg) Coldest Month: December (56 °F avg) Wettest Month: August (1.00" avg) Windiest Month: April (8 mph avg) Annual precip. 7.31"
Get the monthly weather forecast for Phoenix, AZ, including daily high/low, historical averages, to help you plan ahead.
