Or is it like boxing and there are multiple governing bodies and Tuesday captured the WBO hottest day, but the IBF and WBC still recognize August 1, 2022?
Generally in the US “official” numbers would come from the NOAA and the NCEI would be the one publishing them.
[1] https://docs.house.gov/meetings/SY/SY00/20160202/104399/HHRG...