Note that data for the historical period reflect the annual average for all years between 1971 and 2000. For any given location, some years during that time period may have had more extreme heat days than reported here while others had fewer. Because extreme heat has increased since that historic period, places included in this tool may have experienced more frequent extreme heat in recent years than during the historic 30-year average.
Killer Heat Interactive Tool
Published Jul 8, 2019