It was also the ninth consecutive month to break its annual temperature record.
During January, the average temperature across global land and ocean surfaces was 1.04°C above the 20th century average.
This was the highest for January in the 1880–2016 record, surpassing the previous record of 2007 by 0.16°C.
Australia recorded above-average temperatures across parts of northern and southern Australia, and Tasmania had its second-highest January temperature ever recorded.
For all the details head to the NOAA website.