1995 Chicago heat wave

The 1995 Chicago heat wave was a heat wave which led to 739 heat-related deaths in Chicago over a period of five days.  Most of the victims of the heat wave were elderly poor residents of the city, who could not afford air conditioning and did not open windows or sleep outside for fear of crime. The heat wave also heavily impacted the wider Midwestern region, with additional deaths in both St. Louis, Missouri and Milwaukee, Wisconsin.