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July was globe's hottest month on record and 11th-warmest July on record in US

Much of the nation and the rest of the globe are well on their way to one of the warmest years on record after a blistering July.

July was the hottest month on record globally, breaking several records, the Copernicus Climate Change Service said Tuesday. A long period of unusually high sea surface temperatures around the world have contributed to the heat, said Copernicus, the European Union's Earth Observation Program.

Many climate scientists already were saying before July even started that the chances were good 2023 could be the world's warmest year on record. July only solidified that concern.

It was the 11th-warmest July on record for the U.S., the National Oceanic and Atmospheric Administration said Tuesday. NOAA's global report is due next week. Heat waves hit much of the country and brought record temperatures to the Southwest, which tied with 2003 as the warmest July on record in the region.

Alonzo McAdams drinks a bottle of water given to him from a Salvation Army truck handing out water, and other supplies for the homeless in Tucson, Arizona on July 26, 2023 during a record-breaking heat wave across the southern United States. Photo by ANDREW CABALLERO-REYNOLDS / AFP via Getty Images
Alonzo McAdams drinks a bottle of water given to him from a Salvation Army truck handing out water, and other supplies for the homeless in Tucson, Arizona on July 26, 2023 during a record-breaking heat wave across the southern United States. Photo by ANDREW CABALLERO-REYNOLDS / AFP via Getty Images

Florida experienced its warmest January to July on record.

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"We're on a very good pace to be the warmest year on record," said state climatologist David Zierden, of the Florida Climate Center at Florida State University. August temperatures also have started out warmer than normal.

Another 27 states across the country experienced one of their top 10 warmest year-to-date average temperatures through July, NOAA's National Centers for Environmental Information said.

Here's a look at more of this year's weather records:

July's average temperatures

Average temperature rankings by state in July 2023. The number 129 signifies the warmest on record.
Average temperature rankings by state in July 2023. The number 129 signifies the warmest on record.
  • July was the 11th-warmest July on record in the contiguous U.S. The 75.7-degree average temperature was 2.1 degrees above average.

  • In the Southwest, the average temperature tied with 2003 for the warmest July on record.

  • In Florida, it was the hottest July on record and tied June 1998 as the warmest month ever.

  • It was also the warmest July on record in Arizona, New Mexico and Maine.

  • Only five states saw below-average temperatures: North and South Dakota, Nebraska, Minnesota and Iowa.

Other temperature records

Average temperature rankings in the United States for the period from January to July 2023. The number 129 signifies the warmest on record.
Average temperature rankings in the United States for the period from January to July 2023. The number 129 signifies the warmest on record.

Billion-dollar disasters

So far this year, NOAA reports 15 billion-dollar weather and climate disasters, the most on record for January to July.

  • The disasters included 13 severe storms, one winter storm and one flood.

  • 113 fatalities were reported

  • The total estimated costs of the disasters exceeded $39.7 billion

Why was it Florida's hottest July?

It's sort of the tale of two states, Zierden said.

A high-pressure heat dome centered over the Gulf of Mexico has cut off the easterly trade winds, he said. That pattern favors more rainfall on the eastern side of the state and lower-than-normal rainfall on the state's southwest coast. It also contributes to the high sea surface and ocean temperatures being seen in South Florida.

  • Miami saw a record 46 consecutive days with a heat index above 100 degrees

  • In Sarasota, which is experiencing its driest year to date, the July average temperature – 86.2 – was 3.1 degrees above normal.

  • 21 cities broke a record-high maximum temperature at least once.

“The extreme weather which has affected many millions of people in July is unfortunately the harsh reality of climate change and a foretaste of the future,” Petteri Taalas, the World Meteorological Organization’s secretary-general, stated Tuesday. “The need to reduce greenhouse gas emissions is more urgent than ever before."

This article originally appeared on USA TODAY: July was Earth's hottest month on record, Florida's hottest July