National Climate Report - Annual 2012
Summer - Days over 100°F
The nation has experienced its warmest and 2nd warmest summers in back-to-back years. The heatwave that gripped the Southern Plains in 2011 was intense and long lasting, resulting a record warm June-August for several southern states. While the summer heatwave in 2012 was not as intense, it was further reaching. In 2012, approximately one-third of the nation's population experienced ten or more days of 100°F temperatures.