September 2017: Earth's 4th Warmest September on Record
The deadliest weather-related disaster of September was Hurricane Irma, which killed 80 people in the Southeast U.S., and 44 people in the Caribbean and Bahamas. Image: UW-Madison/CIMSS
September 2017 was the planet's fourth warmest September since record keeping began in 1880, said NOAA's National Centers for Environmental Information (NCEI) and NASA this week. The only warmer Septembers came during 2015, 2016, and 2014.