Kidding aside. For the last decade plus, almost every met in here has called out ASOS/AWOS sites when they are starting to run out of line. We overanalyze temps and dews in here daily so we notice when a site starts to report data that is out of place with the norm. I think we have personally contributed to some of these sites getting fixed earlier than they would’ve otherwise been.
I have mentioned many times about how ASOS is very responsive and that they had to go with 5 min running means to better mimic the slower response of liquid thermometers. We’ve all mentioned how it’s difficult to thread all of the site’s records with changes in instrumentation, shielding, and siting. It is what it is.
But this was just about throwing “UHI” out there because of heat records when every site out there in tumbleweedville is breaking records by 10°F.