NC Heat Health Data and Reports
Data: Current and Future Projected Impacts of Heat in NC
Review historic data on extreme heat events and days, heat-related illnesses and more.
Fact sheet: Understanding counts and rates in our heat health data
Heat-Related Illness Surveillance Reports
We track heat-related illness from May 1 to Sept. 30 each year, using data from NC DETECT.
2026 Weekly NC Heat-Related Illness Report
Statewide Key Messages
This season to date (May 1-9, 2026)
There have been 38 heat-related illness (HRI) emergency department (ED) visits with an average weekly rate of 0.2 per 100,000 population. (Note: no weekly report was produced for May 1-2)
This week (May 3-9, 2026):
- There were 28 HRI ED visits (0.03% of total ED visits), with a rate of 0.3 per 100,000 population
- The rate was highest among females aged 65+ years (0.7 per 100,000 population)
- The rate of HRI ED visits was highest in the Southeast and Foothills (0.4 per 100,000 population)
- The most frequent heat related diagnosis code was heat syncope (n = 7; 58.3%)
- The maximum daily heat index ranged from 65.6 to 82°F at Raleigh-Durham International Airport
- The daily minimum temperature was below 70°F on all 7 days this week.
The report shows that extreme heat is becoming a bigger health risk. Staying cool, drinking water, taking breaks and checking on others can help prevent heat-related illness.
Read the full report: NC Heat-Related Illness Report May 3-9, 2026
Latest Weekly Reports
2025 Mid-Season Heat Report
- NC Heat Report: September 21-30, 2025
- NC Heat Report: September 14-20, 2025
- NC Heat Report: September 7-13, 2025
- NC Heat Report: August 31-September 6, 2025
- NC Heat Report: August 24-30, 2025
- NC Heat Report: Aug. 17-23, 2025
- NC Heat Report: Aug. 10-16, 2025
- NC Heat Report: Aug. 3-9, 2025
- NC Heat Report: July 27-Aug. 2, 2025
- NC Heat Report: July 20-26, 2025
- NC Heat Report: July 13-19, 2025
- NC Heat Report: July 6-12, 2025
- NC Heat Report: June 29-July 5, 2025
- NC Heat Report: June 22-28, 2025
- NC Heat Report: June 15-21, 2025
- NC Heat Report: June 8-14, 2025
- NC Heat Report: June 1-7, 2025
- NC Heat Report: May 25-31, 2025
- NC Heat Report: May 18-24, 2025
- NC Heat Report: May 11-17, 2025
- NC Heat Report: May 1-10, 2025