The June 2017 three-month summaries of climate impacts and outlooks are now available for 10 regions and subregions.read more
The globally averaged temperature over land and ocean surfaces for May 2017 was the third highest for the month.read more
During spring, the average contiguous U.S. temperature was 53.5°F—2.6°F above the 20th century average.read more
The globally averaged temperature over land and ocean surfaces for April 2017 was the second highest for the month.read more
During April, the average contiguous U.S. temperature was 53.8°F—2.7°F above the 20th century average.read more
The globally averaged temperature over land and ocean surfaces for March 2017 was the second highest for the month.read more
Paleoclimate data help scientists evaluate climate change centuries into the past and develop estimates of future change.read more
Over 250 years ago, meteorologists used kites to carry thermometers aloft and record upper air observations.read more
A new study finds that one of California’s worst dry spells in 450 years has less than a one percent chance of recovering...read more
The March temperature averaged across the contiguous United States was 46.2°F—4.7°F above the 20th century average.read more
