Philly Schools Activate AC Amid Record Heat

District prepares HVAC systems for summer as temperatures soar.

Apr. 16, 2026 at 12:06pm

Got story updates? Submit your updates here. ›

A highly stylized, repeating pattern of a window air conditioning unit rendered in a vibrant, neon color palette with heavy black outlines, conceptually representing the district's efforts to keep classrooms cool.A bold, eye-catching pop art interpretation of the window AC units being activated in Philadelphia schools to combat record-breaking heat.Philadelphia Today

As Philadelphia braces for a second day of record-breaking heat, the School District of Philadelphia announced it will begin activating air conditioning systems across its buildings on Thursday. The district said HVAC systems will be transitioned from heating to cooling over the next few weeks, with window units also being turned on to maintain comfortable temperatures. However, the district issued guidelines for safe and efficient AC use, prohibiting extension cords and personal portable units.

Why it matters

With climate change driving more extreme weather, the ability of school districts to keep students and staff cool during heatwaves is becoming an increasingly important issue. Philadelphia's school system has struggled with insufficient cooling in over 50 buildings, underscoring the need for proactive HVAC maintenance and upgrades.

The details

The School District of Philadelphia said its crews will work to transition HVAC systems at schools across the city from heating to cooling between Thursday and May 1. For classrooms with window AC units, those will be turned on starting Thursday. The district issued guidelines, including prohibiting extension cords and personal portable AC units, to ensure safe and efficient operation of the cooling systems.

  • On Thursday, April 16, 2026, the School District of Philadelphia will begin activating air conditioning systems.
  • By May 1, 2026, the transition of HVAC systems from heating to cooling will be completed across the district.

The players

School District of Philadelphia

The public school district serving the city of Philadelphia, Pennsylvania.

Got photos? Submit your photos here. ›

What’s next

The district will continue monitoring temperatures and making adjustments to HVAC systems as needed throughout the summer months.

The takeaway

As extreme heat events become more common due to climate change, school districts must prioritize HVAC upgrades and maintenance to ensure students and staff can learn and work in comfortable, safe environments.