The UK MET office was accused of fabricating fake temperature data - which is also the case in the US, Australia and many European countries.
In response, they just deleted the fraudulent data...
https://dailysceptic.org/2025/10/05/met-office-deletes-huge-chunks-of-historic-temperature-data-after-fabrication-claims/?brid=LEN-un_UqmPYAxNpEPLywA