Phoenix Average Temperature by Month

This page shows the average temperature in each month of the year in Phoenix, Arizona. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Phoenix?
In Phoenix, Arizona, the warmest month is July, with an average daily high temperature of 106.5 °F and an average low of 84.2 °F.
What's the Coldest Month in Phoenix?
In Phoenix, Arizona, the coolest month is January, with an average daily high temperature of 67.8 °F and an average low of 45.8 °F.
Month Avg. High Avg. Low
January 67.8 °F 45.8 °F
February 71.0 °F 48.8 °F
March 78.1 °F 54.2 °F
April 85.6 °F 60.5 °F
May 94.6 °F 69.3 °F
June 104.4 °F 78.4 °F
July 106.5 °F 84.2 °F
August 105.1 °F 83.4 °F
September 100.5 °F 77.8 °F
October 89.3 °F 65.3 °F
November 76.6 °F 53.4 °F
December 66.4 °F 45.1 °F
Year 87.2 °F 63.9 °F
Weather Station Details
Years Station Coordinates
1933–2024 Phoenix Sky Harbor International Airport location
1905–1933 Tempe 3 S location