> I tried finding information on the precision of the DV record and couldn't More than you could possible want to know, but: https://www.wunderground.com/blog/

> I tried finding information on the precision of the DV record and couldn't More than you could possible want to know, but: https://www.wunderground.com/blog/weatherhistorian/an-investigation-of-death-valleys-134f-world-temperature-record.html https://www.wunderground.com/blog/weatherhistorian/an-invest... Long story short… both the precision and accuracy are very questionable, but not due to the instrumentation. The observer at that station during that time period was not doing a very good job. As far as precision specifically, During the period that observer was recording the station: > When rain fell at the ranch, recorded amounts were almost invariably in the amounts of 0.01”, 0.10”, 0.20”, and 0.30”. Whatever the instruments did (and that article makes a pretty conclusive case for them not having hit 134F), the observer recording them seems to have often filled in values that “felt right”, carried over previous days readings when he missed one, and just kind of eyeballed the actual measurements.