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Heat Record in Phoenix: 100 Degrees for 100 Days
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Heat Record in Phoenix: 100 Degrees for 100 Days

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  • The heat wave in Phoenix started on May 27.
  • The previous record dates from 1993.
  • The lack of monsoon rains hasn’t helped either.

Phoenix just hit a record no one wants: 100 consecutive days of temperatures of 100 degrees Fahrenheit or higher.

The streak began when temperatures in Phoenix reached 102 degrees on May 27.

“Unfortunately, there’s no end in sight,” Jonathan Erdman, senior meteorologist at weather.com, said Tuesday afternoon. “Highs could reach 110 degrees by early next week.”

A look at Phoenix’s scorching heat by the numbers:

-​The average minimum temperature over the 100 days was 87 degrees, according to the local National Weather Service office. That was measured at Phoenix Sky Harbor International Airport.

-​At least 177 deaths in Maricopa County, where the city is located, have been attributed to heat this year. At least 436 others are under investigation. Last year, metro Phoenix had a record 645 heat-related deaths.

-​The city is on track for its warmest year since records began in 1896. This comes shortly after the warmest July ever recorded.

A billboard shows the current temperature of over 100 degrees on June 5, 2024 in Phoenix, Arizona.A billboard shows the current temperature of over 100 degrees on June 5, 2024 in Phoenix, Arizona.

A billboard shows the current temperature of over 100 degrees on June 5, 2024 in Phoenix, Arizona.

(Justin Sullivan/Getty Images)

Erdman adds:

-Phoenix’s new record triple-digit streak is more than three weeks longer than the previous record (76 consecutive days), set in 1993. That’s not the only superlative. Phoenix also smashed its record-warmest summer last year by nearly 3 degrees, a summer of heat that drew national attention.

-A triple-digit high is normal in the summer. What makes this heat wave so impressive is the lack of monsoon thunderstorms in the Phoenix Valley, which typically take a few degrees off the scorching heat.

-On average, the last triple-digit high of the season in Phoenix is ​​the first week of October. Last year, that was on October 21.

What else you need to know:

Heat is the leading cause of weather-related death in the U.S. High temperatures at night are especially dangerous because the body doesn’t have time to cool down.

-​It’s brutal for outdoor workers, too. That includes people like Ramiro Lopez, a landscaper in the Phoenix suburbs for five years. “I’ve learned to drink a lot of sports drinks and make sure I’m done by 1 p.m.,” Lopez told the Associated Press. “Otherwise, it’s just too much.”

Scientists say greenhouse gas emissions from power plants and vehicles burning fossil fuels are the biggest culprits of higher temperatures.

MORE ON WEATHER.COM

-​US heat deaths hit record highs last year

-​2023 was not only the warmest year ever on Earth

-​Climate change makes deadly heatwave 35 times more likely, study finds

Weather.com Reporter Jan Kinds covers the latest news and topics related to weather, space, climate change, the environment and everything in between.