When was the hottest summer on record in Phoenix?

PHOENIX — Ask anyone in Phoenix about the summer of 2024 and they’ll all tell you the same thing: it was hot.

But did you know it was record-breaking hot? 

This past summer was the hottest summer on record, breaking the previous record by more than a degree, according to the National Weather Service. 

The previous hottest summers are:

• 2020 & 2017 (both tied for second place)
• 2014
• 2023
• 1989

The average temperature in Phoenix in 2024 was 78.6 degrees. 

There were also 39 days when the record high was either set or tied in 2024 and 42 days when the record warm low temperature was set or tied in 2024.

You can now watch 12News content anytime, anywhere thanks to the 12News+ app! 

The free 12News+ app from 12News lets users stream live events — including daily newscasts like “Today in AZ” and “12 News” and our daily lifestyle program, “Arizona Midday”—on Roku and Amazon Fire TV. 

12News+  showcases live video throughout the day for breaking news, local news, weather and even an occasional moment of Zen showcasing breathtaking sights from across Arizona. 

Users can also watch on-demand videos of top stories, local politics, I-Team investigations, Arizona-specific features and vintage videos from the 12News archives. 

Roku: Add the channel from the Roku store or by searching for “12 News KPNX.” 

Amazon Fire TV: Search for “12 News KPNX” to find the free 12News+ app to add to your account, or have the 12News+ app delivered directly to your Amazon Fire TV through Amazon.com or the Amazon app. 

Catch up on the latest news and stories on the 12News YouTube channel. Subscribe today.