New York City Heatwave June 2025 record-breaking 102°F at JFK Airport on June 24—the hottest June temperature ever recorded. With Newark and Baltimore also facing 100°F+ heat and thousands without power, this heatwave signals intensifying climate impacts. Explore the full story with photos and video.
NYC Heatwave Breaks Records
New York City Heatwave June 2025 scorched under an unprecedented heatwave on June 24, as the temperature at JFK Airport soared to 102°F (39°C)—the hottest June day ever recorded at the site, according to the National Weather Service (NWS). This extreme heat wave, sweeping across the Northeast and Mid-Atlantic, has shattered records, stressed power grids, and raised serious public health concerns for millions of Americans.
Image: Manhattan streets under intense heat on June 24. (Credit: Getty Images)
📹 Watch video footage of NYC residents coping with the record heat
Historic Heat at JFK Airport New York City Heatwave June 2025
New York City Heatwave June 2025 On Monday, June 24, John F. Kennedy International Airport reported a searing 102°F, breaking its all-time June heat record. This extreme temperature wasn’t just rare—it was alarming. June typically sees highs in the low 80s in NYC, but this heatwave has pushed conditions into dangerous territory.
“This is a climate red flag,” said National Weather Service meteorologist Karen Dyer. “We’ve never seen anything like this so early in the summer.”
Across the five boroughs, heat indexes topped 105°F, and the sweltering conditions made sidewalks and subways unbearable for commuters and tourists alike.
Tri-State Region Also Hit Hard
The record heat wasn’t isolated to New York. On Sunday, Newark, New Jersey, and downtown Baltimore, Maryland, both topped 100°F, triggering extensive power outages and emergency responses.
In Newark, nearly 12,000 residents lost power, while parts of Baltimore experienced brownouts as power grids buckled under the demand of air conditioning units running full blast. These blackouts left vulnerable populations—especially seniors, children, and the homeless—exposed to extreme heat without relief.
Power Grids Strained, Blackouts Reported
Across the Northeast, energy providers struggled to meet soaring demand. Utility companies like Con Edison and PSE&G issued warnings about potential rolling blackouts and urged customers to conserve electricity by:
- Raising thermostats a few degrees
- Turning off unnecessary lights
- Avoiding use of large appliances during peak hours
New York City officials opened over 500 cooling centers, while mobile hydration stations were deployed in public areas such as Times Square, Central Park, and Brooklyn’s Prospect Park.
Health Risks and Emergency Responses New York City Heatwave June 2025
According to the Centers for Disease Control and Prevention (CDC), extreme heat is the deadliest weather hazard in the U.S. annually. Hospitals across NYC reported an uptick in heat exhaustion, dehydration, and heatstroke cases, particularly among:
- Outdoor construction and delivery workers
- Elderly residents without air conditioning
- Tourists unaccustomed to NYC’s urban heat island effect
The city’s Department of Health warned all residents to:
- Stay indoors between 11 a.m. and 4 p.m.
- Drink water frequently
- Avoid alcohol and caffeine
- Wear light-colored, breathable clothing
Experts Warn: Climate Change Is Fueling Heat Extremes
Meteorologists and climate scientists are increasingly linking these extreme weather events to climate change. Rising global temperatures mean more frequent, longer-lasting, and more intense heatwaves in cities like New York.
“This is not just a fluke. These record-setting temperatures are becoming the new normal,” said Dr. Lisa Chan of the Columbia Climate School. “Urban areas, especially ones with dense concrete and low vegetation, trap heat and exacerbate its effects.”
What Comes Next?
Forecasts suggest the heatwave will persist through midweek, with only a slight break coming from a weak cold front expected late Thursday. Temperatures will remain in the mid to high 90s, with humidity continuing to push the heat index into dangerous levels.
The National Weather Service has issued ongoing heat advisories, and air quality alerts are also in effect due to elevated ozone levels.
Final Thoughts
New York City Heatwave June 2025 June 24 heatwave marks a turning point in the conversation about urban resilience and climate adaptation. As temperatures continue to rise year over year, cities like NYC must invest in:
- Green infrastructure
- Cooling zones
- Sustainable energy solutions
Meanwhile, residents are urged to stay informed, look out for neighbors, and prepare for more extreme summer conditions in the months ahead.