Jun 24, 2025 - News
D.C. sees hotter summer nights amid climate change
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Don't count on nighttime relief from sweltering temps — summer evenings are getting warmer in the District amid climate change, a new analysis shows.
Why it matters: Higher overnight temperatures can have health consequences for vulnerable groups, as well as increase demand for air conditioning.
Driving the news: D.C.'s average summer nighttime temperatures increased 2.9 degrees between 1970 and 2024, per new research from Climate Central.
Zoom out: Average nighttime temps upped in 96% of 241 locations analyzed in the report.
- Reno, Nevada (+17.7°F), Las Vegas (+10°F), El Paso, Texas (+8.9°F) and Salt Lake City (+8.2°F) saw the biggest increases.