Earth's hottest month on record was July 2016: NASA

July 2016 was the Earth's hottest month since instrument records began in 1880, NASA found.
 By 
Andrew Freedman
 on 
Original image replaced with Mashable logo
Original image has been replaced. Credit: Mashable

UPDATE: Aug. 17, 2016, 11:37 a.m. EDT This story has been updated to include new temperature data from NOAA.


Earth just had its hottest month yet, and the record-shattering warmth shows no signs of stopping.

According to NASA, global average surface temperatures during July were 0.84 degrees Celsius, or 1.51 degrees Fahrenheit, above average. This beats all previous Julys, with July 2011 coming in second at 0.74 degrees Celsius above average.


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The large anomaly seen during July 2016 means that the month was the hottest on Earth since instrumental records began in 1880.

Separately, the National Oceanic and Atmospheric Administration (NOAA), also found that July was the planet's hottest month ever recorded.

July is typically the planet's hottest month of the year due to the fact that the Northern Hemisphere has more land area than the Southern Hemisphere, making Northern Hemisphere summer the warmest month.

July is now the tenth month in a row to be the warmest such month on record in NASA's database.

It is now virtually certain that 2016 will beat 2015 for the dubious distinction of the hottest year on record.

NASA is not the only agency that tracks global temperatures, and its methods differ slightly from the others.

The NOAA also found that July was the hottest such month on record, hottest month overall, and an unprecedented 15th month in a row that set a monthly temperature record.

Original image replaced with Mashable logo
Original image has been replaced. Credit: Mashable

The year so far has also been record warm, NOAA found.

The heat in the past two years has been caused by human-caused climate change with a boost from an El Niño event, which has now faded.

Yet the record heat, clearly, is continuing.

The (presumed) record warm year of 2016 has brought flood disasters to the U.S., the latest of which is still devastating parts of Louisiana, as well as China.

Typically hot locations, such as India, Kuwait and Iraq, set new benchmarks for what constitutes their hottest days.

Meanwhile, the world's oceans are suffering through the longest-lasting global coral bleaching event on record.

La Niña may break the fever temporarily

Climate projections show that the odds favor a weak La Niña to develop in the tropical Pacific Ocean. If this occurs, it would be expected to hold down global temperature anomalies, and possibly interrupt the constant string of record warm months, at least for a while.

In fact, global average temperature departures from average had been declining in recent months, though July marks an uptick compared to June, NASA found.

Original image replaced with Mashable logo
Original image has been replaced. Credit: Mashable

You can think of El Niño as a driver pressing the gas pedal on a car all the way to the floor, while La Niña is more like a driver still pressing the gas, but at a more moderate pace.

However, even La Niña years have been warming as a result of long-term global warming, and it's possible the developing La Niña could set a record for the mildest La Niña year.

For climate scientists, what matters is the long-term trend over decades to centuries, making monthly records much less significant compared to the steady increase in temperatures throughout the 20th and 21st centuries.

The long-term record shows an unmistakable upward trend in global temperatures, with warming accelerating in the oceans and atmosphere in recent decades.

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Andrew Freedman

Andrew Freedman is Mashable's Senior Editor for Science and Special Projects. Prior to working at Mashable, Freedman was a Senior Science writer for Climate Central. He has also worked as a reporter for Congressional Quarterly and Greenwire/E&E Daily. His writing has also appeared in the Washington Post, online at The Weather Channel, and washingtonpost.com, where he wrote a weekly climate science column for the "Capital Weather Gang" blog. He has provided commentary on climate science and policy for Sky News, CBC Radio, NPR, Al Jazeera, Sirius XM Radio, PBS NewsHour, and other national and international outlets. He holds a Masters in Climate and Society from Columbia University, and a Masters in Law and Diplomacy from The Fletcher School at Tufts University.

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