News

Earlier Summer temps in Philadelphia are another reminder of climate change

Climate change trends are shifting us towards warmer temps earlier in the year.

May heating up is another reminder of climate change.

Climate change not only shifting us towards hotter weather but also coming earlier in the year. In Philadelphia, the first 85°F+ is arriving 14 days earlier on average.

54% of US cities have recorded summer temperatures at least one week earlier than they did 50 years ago, according to Climate Central.

Summer heat presents a challenge to health, especially with the city’s urban heat island effect. The Office of Sustainability created the “Beat the Heat” plan to help residents cope with higher temperatures.

Cover photo: M. Edlow for Visit Philadelphia


Julie Hancher

Julie Hancher is the co-founder and Executive Director of Green Philly, an independent media organization making sustainability accessible, affordable and actionable. Since launching Green Philly in 2008, she has grown it from a passion project into a leading voice for local climate storytelling, pairing impactful journalism with community events and experiences. Julie is a frequent speaker on climate, media innovation and the future of local journalism, and is the creator of SustainPHL and EcoFair. Outside of Green Philly, you can find her hiking, biking, traveling, or exploring Philadelphia.

Recent Posts

Enviro jobs & grants, & more

Catch up on the latest sustainability news: Parks and Rec expands environmental stewardship program. Philadelphia…

1 week ago

Meet 6 people making Philly greener, one neighborhood at a time.

(and they're all SustainPHL nominees!) From storm drains in Germantown to community gardens in Kensington,…

1 week ago

Vacant lot greening, A challenge to the school board, & more

Catch up on the latest sustainability news: Teens turn vacant lot into green space. Since…

2 weeks ago

The Philly Passive House: What does a home without fossil fuels look like?

Inside a Francisville Passive House project, Green Philly attendees saw how airtight construction, insulation, efficient…

2 weeks ago

New trash bill, utility assistance, National Estuaries Week, & more

Catch up on the latest sustainability news: Council considers new bill for waste disposal contract.…

3 weeks ago

Announcing the SustainPHL 2026 Nominees

Meet the local leaders, organizations and changemakers shaping a more sustainable Philadelphia. Philadelphia has welcomed…

3 weeks ago