This summer was third-hottest for contiguous U.S.

This was the third-hottest summer on record for the contiguous United States since record-keeping began in 1895, according to the National Oceanic and Atmospheric Administration’s National Climatic Data Center.

The average temperature for the “lower 48″ states between June and August was more than 74 degrees, more than 2 degrees higher than the average for the 20th Century. Only the summers of 2011 and 1936 had higher summer temperatures for the contiguous U.S.