Here are a couple of very interesting graphics from the Berkeley Earth Twitter site. I hadn’t realised that they were a nonprofit organisation until now. The top one displaying a 12 month moving average hasn’t been updated with 2020 data, but you can pause and select which year you want to view with the slider. The lower ones shows a day by day count of extreme records as they occurred during 2020. If the grey dots show all available climate sites, which I think it does, it highlights how scant these sites are across large parts of Africa, South America and the Arctic, and how dependent we are on the science that lies behind estimating temperatures across the world’s oceans.