According to NOAA (National Oceanic and Atmospheric Administration), most of the years in the next decade are very likely to rank as the top 10 warmest years. The warmest years globally have all occurred since 1998, with the top ten being 2016, 2019, 2015, 2017, 2018, 2014, 2010, 2013 and 2005 (tied), and 1998, respectively. Final numbers haven’t been crunched yet, but a tie with 2016 is looking like a reasonable bet for 2020.
https://www.ncei.noaa.gov/news/projected-ranks
https://www.discovermagazine.com/environment/will-2020-end-as-the-warmest-year-on-record