NOAA’s latest global climate summary for September 2016 was released today. It shows that September was the second warmest on record for the globe, just slightly cooler than 2015 when El Niño was growing in the Pacific Ocean. This breaks the string of consecutive months that set records for high temperature. The year to date temperature for 2016 is 0.23 degrees F above last year’s record, the previous record-holder.
You can read the summary at https://www.ncdc.noaa.gov/sotc/summary-info/global/201609 or the complete report at https://www.ncdc.noaa.gov/sotc/global/201609.
Using a different dataset, NASA estimated that September 2016 was the warmest on record by a razor-thin margin, beating out September 2014 in their analysis. You can read about that at https://data.giss.nasa.gov/gistemp/news/20161017/.
