Extreme heat broke meteorological records, canceled flights, and made life miserable for millions of people.
Image of the Day Heat Land
This map depicts land surface temperature anomalies for July 20 to 27, 2011, in the midst of a month-long heatwave across much of the United States.
Image of the Day Heat Land Life Temperature Extremes
Image of the Day Heat Land Temperature Extremes
This color-coded map shows above- and below-normal temperatures in early July 2010, when a heat wave struck much of North America and Eurasia.
Image of the Day Land
Temperature Extremes
In the summer of 2016, extreme heat waves gripped Siberia, the Middle East, and North America.
Record temperatures have accompanied destructive fires in the Rocky Mountains.
All-time national and regional records for summer temperatures have fallen several times in recent weeks.
Image of the Day Heat
Unseasonably warm temperatures broke records across the United States.