United States sees rising humid heat threats
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New climatological data show a sustained increase in extreme humid heat days across the U.S. Midwest and South, especially in Texas, Oklahoma and Missouri. Climate Central research finds that atmospheric warming is increasing the air’s moisture-holding capacity, producing “humid heat” conditions that hinder the body’s ability to cool through sweating. Since 1979, Amarillo, Texas has recorded about 22 more extreme humid heat days per year, while Tulsa and St. Louis have each added roughly five. United Farm Workers officials say the trend is heightening illness, injury and fatality risks for outdoor laborers and are calling for shade, paid rest breaks and better heat-stress training.
Prepared by Olivia Bennett and reviewed by editorial team.
Timeline of Events
- 1979 Amarillo baseline humid heat levels recorded
- Since 1979 Amarillo adds 22 extreme humid days
- Since 1979 Tulsa adds about five such days
- Since 1979 St. Louis adds about five days
- Recent years Climate Central documents rising humidity
- Recently United Farm Workers report higher risks
- Recently advocates urge shade and paid breaks
- Recently training pushed to spot heat stroke
Why This Matters to You
Rising humid heat isn't just uncomfortable. It's a health risk, especially for outdoor workers. More extreme humid days mean more chances for heat-related illnesses. If you or your loved ones work outside, it's crucial to know the signs of heat stroke and stay hydrated.
The Bottom Line
Climate change isn't just about temperature. It's also about humidity. And it's not just about the planet, it's about people. We're seeing more extreme humid heat days, and that trend is expected to continue. Worth forwarding if you know someone who works outdoors.
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