The victim, a person in their 70s, died Friday in their home in Queens, an official said.
The cause of death was listed as hyperthermia due to environmental exposure.
The medical examiner says the victim had contributing conditions.
Tri-State residents continued to cope with dangerous conditions Monday as the heat wave moved into its seventh day.
Click here for the latest advisories, watches and warnings from the National Weather Service
The extreme weather forced organizers to shorten portions of the New York City Triathlon on Sunday.
Storms forecast for Monday afternoon were expected to bring an end to the consecutive days of 90+ degree temperatures.
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