Convert 20th century average to pre-industrial add 0.21C.
15 Sept 2021 The Rate of Global Warming During Next 25 Years Could Be Double What it Was in the Previous 50 yars Renowned Climate Scientist Warns-James Hansen
8th January 2021 Copernicus:, Globally 2020 ties with 2016 for warmest year recorded, at around 1.25°C above the 1850-1900 pre-industrial period, 2020 warmest year on record for Europe at 2.3°C above 1850-1900, and 0.4°C above 2019, the previous warmest year. The largest annual temperature increase was 6.7°C over the Arctic and northern Siberia. July 2021 hottest month on record 2021 summer on land was the hottest ever (higher than the 1930s Dust Bowl)
Caution: Different climate centers arrive at different degrees of global average temperature increase, due to slightly different methods of estimation.
WMO 2020 ties with 2019 and 2016 for record high.The average global temperature in 2020 was about 14.9°C, 1.2 (± 0.1) °C above the pre-industrial (1850-1900) level.
James Hansen, Columbia,multiple temperature data sets(most comprehensive source) NASA GISSis a good for temperature data with maps Copernicus is excellent from Europe Commission for temperature NOAA is the other US source that gives temperature data.