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The Boston Globe

Metro

2012 was warmest on record for the United States

Last year was the warmest on record in the United States and brought the second most extreme weather in more than a century — causing droughts, wildfires, and storm damage — according to a report Tuesday from the National Oceanic and Atmospheric Administration.

The news continues a dramatic warming trend in the mainland United States: Seven of the nation’s 10 warmest years have taken place in the past 15 years, according toNOAA. Last year’s average temperature of 55.3 degrees Fahrenheit beat the previous 1998 record by 1 full degree, a dramatic increase in climate data where records are often broken by far smaller amounts.

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