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Air Temperature

Assessing the U.S. Climate in April 2018

July 31, 2018
During April 2018, the average contiguous U.S. temperature was 48.9°F, 2.2°F below the 20th century average.

Assessing the Global Climate in March 2018

August 9, 2018
The globally averaged temperature over land and ocean surfaces for March 2018 was the fifth highest on record.

March 2018 Regional Climate Impacts and Outlooks

August 13, 2018
The March 2018 three-month summaries of climate impacts and outlooks are now available for 10 regions and subregions.

Assessing the Global Climate in February 2018

August 9, 2018
The globally averaged temperature over land and ocean surfaces for February 2018 was the 11th highest on record.

Assessing the Global Climate in 2017

July 26, 2018
The globally averaged temperature over land and ocean surfaces for 2017 was the third highest on record.

December 2017 Regional Climate Impacts and Outlooks

August 9, 2018
The December 2017 three-month summaries of climate impacts and outlooks are now available for 10 regions and subregions.

September 2017 Regional Climate Impacts and Outlooks

August 10, 2018
The September 2017 three-month summaries of climate impacts and outlooks are now available for 10 regions and subregions.

On This Day: Earth’s Hottest Temperature

August 9, 2018
On July 10, 1913, Greenland Ranch in Death Valley observed the hottest surface air temperature ever recorded on Earth.

June 2017 Regional Climate Impacts and Outlooks

August 1, 2018
The June 2017 three-month summaries of climate impacts and outlooks are now available for 10 regions and subregions.

What Have We Learned from Paleoclimatology?

August 10, 2018
Paleoclimate data help scientists evaluate climate change centuries into the past and develop estimates of future change.