About
The Heat and Health Index (HHI) is a national tool that incorporates historical temperature, heat-related illness, and community characteristics data at the ZIP code level to identify areas most likely to experience negative health outcomes from heat and help communities prepare for heat in a changing climate.
Get to know the Heat and Health Index (HHI)
Explore
Explore the HHI with the NCEH Heat and Health Tracker.
Read more
Download the HHI technical documentation.
Download
Download the HHI data and data dictionary.
Snapshot
Download the HHI fact sheet.
Content Source:
Agency for Toxic Substances and Disease Registry