Last month was narrowly the hottest October on record, according to the European Union's satellite monitoring service.

The Copernicus Climate Change Service reported Tuesday that last month was slightly warmer than October 2015, the previous hottest October on record.

The global average temperature for October 2019 was 1.24 degrees above the 1981-2010 average.

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Researchers said that Europe and the Arctic mostly saw above-average temperatures, while the U.S. and Canada saw below average temperatures.

It's not the first month this year to break records. September 2019 was as warm as the hottest September ever, June 2019 was the hottest June on record and July 2019 was the hottest month ever recorded.

Researchers with the National Oceanic and Atmospheric Association say 2019 will be among the top five hottest years on record, likely coming in second behind 2016.

Despite the cool October in the U.S., NOAA's recent winter weather outlook predicted most of the country will see warmer temperatures in December through February.

"Like last year, no part of the U.S. is favored to have below-average temperatures this year," Mike Halpert, the deputy director of NOAA's Climate Prediction Center, said on a call with reporters last month.