The hottest temperature ever officially recorded on Earth is 56.7°C (134.1°F), measured on July 10, 1913, at Furnace Creek Ranch (formerly Greenland Ranch) in Death Valley, California, USA

. This record is recognized by the World Meteorological Organization (WMO) and Guinness World Records as the standard highest air temperature on Earth. Although the 1913 Death Valley record has faced scrutiny and some meteorologists have questioned its accuracy, the WMO currently upholds it as legitimate pending any new evidence

. A previous record of 58.0°C (136.4°F) recorded in El Azizia, Libya, in 1922 was decertified by the WMO in 2012 due to errors related to observer inexperience and instrument issues

. More recent extremely high temperatures include 54.0°C (129.2°F) recorded in Death Valley in 2013, as well as similar highs in Kuwait and Iran, but none have surpassed the 1913 Death Valley record officially

. In summary, the highest confirmed air temperature ever recorded remains 56.7°C (134.1°F) in Death Valley, California, in 1913