Extreme Heat Preparedness
Cooling Centers

Find cooling centers, hydration stations and collection/donation sites.
Extreme Heat Preparedness
Heat-Related Illness Data

See trends in emergency department visits for heat-related illnesses in Arizona.
Extreme Heat Preparedness
ADHS Excessive Heat Warnings

ADHS offers tips for avoiding heat-related illness and staying safe and cool during high temperatures.

Arizona is one of the hottest places on earth from May to September. Heat-Related Illnesses (HRI) are common during the summer. Approximately 4,298 people visit Arizona emergency rooms every year because of HRIs.

See the most recent data on HRI hospital visits in the Heat-related illness Emergency Department & Inpatient Admissions (Hospitalizations) 2019 to 2023, Arizona Residents and Non-Residents Report.

Some heat-related illnesses can even be fatal. More than 4,320 people have died from exposure to excessive heat in Arizona from 2012 to 2023. View a summary of heat-related deaths in the Heat-Caused & Heat-Related Deaths in Arizona by Year (2012 to 2023) Surveillance Report.

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