School started in Denver on Monday, and with temperatures climbing into the high 80s this week, 48 campuses still don’t have air conditioning.

That’s fewer than the 55 campuses that didn’t have air conditioning in 2020, when Denver Public Schools asked voters to pass a $795 million bond for a slew of projects, including installing air conditioning at 24 schools. Voters overwhelmingly passed the bond.

Hot classrooms are a perennial problem in Denver, where some school buildings are a century old and temperatures in August can reach the high 90s. The district pushed back the first day of school this year by a week to try to mitigate the likelihood of overheated students.

Of the 24 schools slated to get air conditioning with funding from the 2020 bond, work has been completed at seven schools, said Heather Bock, the district’s director of construction.

Read more from our partners at Chalkbeat Colorado — including the list of schools without air conditioning. 

Chalkbeat Colorado is a nonprofit news organization covering education issues. For more, visit co.chalkbeat.org.