Parkdale High School closed its doors early Tuesday morning after air conditioning problems forced Prince George's County Public Schools to send students home at 10:30 a.m. The dismissal hit a school that was already running hot in more ways than one, with a building pushing 58 years old and enrollment well beyond what it was designed to hold.
Prince George's County Public Schools announced the early closure Tuesday, citing air conditioning issues inside the Riverdale Park building, according to DC News Now. The station, which first reported the closure, said the district moved up dismissal to 10:30 a.m. as crews dealt with the cooling failure. District procedure calls for early closing announcements tied to weather or facility emergencies to go out before 10:15 a.m. when feasible, a policy that also automatically cancels after-school activities, evening programs, and athletic practices, per Prince George's County Public Schools' own administrative rules.
A Building Already Stretched Thin
Parkdale High School first opened its doors on February 1, 1968, according to Wikipedia, making the core structure and its mechanical systems nearly six decades old. During the 2024–2025 school year, the school operated at 113% of its state-rated building capacity, housing 299 more students than it was built to hold, per enrollment data cited on Facebook. That overcrowding piles extra strain onto aging HVAC equipment, especially during hot weather.
Today, Parkdale serves roughly 2,500 to 2,800 students across grades 9 through 12, including an International Baccalaureate World School magnet program, according to Niche. The school's minority enrollment rate tops 97%, the same profile notes. A building that size, running well over capacity, leaves little room for a cooling system to absorb a bad day.
PGCPS Guidelines and a History of Heat Trouble
Under the district's energy conservation guidelines, secondary schools are supposed to hold a thermostat baseline of 78°F during cooling season, with HVAC systems switched to occupied mode 1.5 hours before the first bell, according to Prince George's County Public Schools. When equipment fails, indoor temperatures can climb past that threshold quickly, especially in early September heat.
This isn't the district's first brush with widespread cooling failures. In September 2018, PGCPS dismissed every school in the system two hours early because of high temperatures and closed two schools entirely for full-day AC repairs, after officials reported that 40 schools were experiencing some degree of cooling problems, as reported by The Washington Post. County emergency management guidance also warns that high humidity combined with 90-degree temperatures raises the risk of heat exhaustion and heat stroke in children, which is part of why the county activates public cooling centers during heat advisories.
A Long History of Facility Complaints
Parkdale's mechanical troubles aren't new to the community. During a September 2023 public hearing on the district's Capital Improvement Program, a Parkdale alumnus testified about chronic HVAC breakdowns, pest infestations, Wi-Fi outages, and poor field conditions during their time at the school, according to The Diamondback. That testimony put a specific, personal face on infrastructure complaints that have lingered around the building for years.
The scale of the problem extends well beyond one school. District leadership has estimated an $8 billion backlog in deferred maintenance across PGCPS facilities, a figure that helps explain why individual repairs, like the one now underway at Parkdale, often move slowly. That backlog has pushed the district toward unconventional fixes elsewhere: in 2021, PGCPS became the first district in the country to use a public-private partnership model bundling design, financing, construction, and 30 years of maintenance for new school buildings, according to K-12 Dive. That model applies to new construction, not existing buildings like Parkdale, where repairs still rely on the district's regular maintenance pipeline.
For now, it remains unclear how quickly maintenance crews can get Parkdale's cooling system back online, whether portable units will be brought in as a stopgap, or whether continued early September heat could trigger similar early dismissals at other PGCPS schools in the days ahead.
