LOS ANGELES - Summer was unseasonably hot in many areas of the United States. Not only did August 2020 become the second-warmest on record in the U.S., but the Northern Hemisphere had its hottest summer ever recorded, according to data released Monday by the National Oceanic and Atmospheric Administration.According to scientists at NOAA’s National Center for Environmental Information, the three-month season from June through August 2020 was the Northern Hemisphere’s hottest meteorological summer, surpassing 2019 and 2016, which were previously tied for the hottest.The globe as a whole also had its third-hottest summer, and according to a statistical analysis, 2020 is likely to rank among the five-warmest years on record.RELATED: Warm autumn.