Heat Reports

Heat Surveillance reports are generated weekly during the heat season and an annual heat surveillance mortality and morbidity report are available summarizing the data. The weekly reporting time periods are from Sunday to Saturday, week ending (W/E) is always a Saturday. 

Click on a link below to the corresponding weekly or annual report to see more information. For additional heat safety information please visit our Heat Safety page.

Seasonal Weekly Reports (Heat Season: May - October)

2020 Heat Mortality/Morbidity Reports (reporting time period is from Sunday to Saturday, week ending (W/E) is always a Saturday). Reports are not posted after Week 40. 

• View the Most Recent Heat Mortality / Morbidity Report (PDF) Opens a New Window.   
• View All the Weekly Heat Mortality / Morbidity Reports

Yearly Mortality Reports

Browse through our current and past mortality reports.

• 2019 Annual Final Report (PDF)
• 2018 Annual Final Report (PDF) Opens a New Window. 
• View All the Mortality Reports

Multi-Year Morbidity Report

Special Studies

• Assessing the Cooling Needs Of Homebound Individuals In Maricopa County, 2016 Opens a New Window. 
• "It’s not the heat, it’s the vulnerability: attribution of the 2016 spike in heat-associated deaths in Maricopa County, Arizona" by Putnam et al (PDF) Opens a New Window.  (September 2018)
• Cooling Center Evaluation (PDF) Opens a New Window.  (January 2017)
• Heat-Related Illness Syndrome Query (PDF) (September 2016)
• Cooling Center Evaluation Summary Report (PDF) Opens a New Window.  (Infographic)
• Community Assessment for Public Health Emergency Response (CASPER) "Heat Vulnerability and Emergency Preparedness Needs Assessment" Report (PDF) Opens a New Window.  (March 2015)
• "Maricopa County Cooling Center Evaluation Project" Facility Manager Survey Results (PDF) Opens a New Window.  (September 2015)
• "Maricopa County Cooling Center Evaluation Project" Observational Survey Results (PDF) Opens a New Window.  (September 2015)
• "Maricopa County Cooling Center Evaluation Project" Visitor Survey Results (PDF) Opens a New Window.  (September 2015)