Excessive Heat — St. Louis (C), Missouri
August 20, 2023 · NOAA Storm Events record
Event narrative (NOAA)
A period of very hot and extremely humid weather began on Sunday, August 20 and lasted through Friday, August 25. The combination of heat and humidity led to heat index values of 110 to 120 as observed at numerous reporting sites in the region. The max heat index at the St Louis International Airport was 117 on August 20. A total of 87 people were seen in hospital emergency rooms between St Louis City and County.
Other notable excessive heat events in Missouri
Source: NOAA/NCEI Storm Events Database. Deaths and injuries are those NOAA classifies as direct. Damage is the reporting office's estimate at the time and is not inflation-adjusted. This is a catalogue record, not a forecast.