Topic summary
Barometric pressure
Extracted from the Wikipedia article Atmospheric pressure.
Records
The highest adjusted-to-sea level barometric pressure ever recorded on Earth above 750 meters was 1,084.8 hPa (32.03 inHg; 1.0706 atm), measured in Tosontsengel, Mongolia on 19 December 2001. The highest adjusted-to-sea level barometric pressure ever recorded below 750 meters was at Agata, in Evenk Autonomous Okrug, Russia (66°53' N, 93°28' E, elevation: 261 m, 856 ft), on 31 December 1968 of 1,083.8 hPa (32.005 inHg). The discrepancy is due to a problematic assumption (a standard lapse rate) associated with normalizing measurements of pressure at high elevations to standard sea level; at greater altitudes the conversion becomes progressively less precise, and for record purposes 750 m is the arbitrary threshold for adequate precision.