When I was in high school in Alabama they closed the schools on the forecast of some snow. It did not snow at all but we got a day off.
Now here locally they close school because the air conditioners are not working. I never ever once went to a school that even HAD air conditioning at all.
In Hawaii the halls were open walkways with a cover but no walls. The classrooms were like barracks, and there was no heat or air conditioning. People always laugh about no heat in Hawaii but we had one day when the low was 58. That does not sound bad until you realize every single place is 58 degrees and sitting around in 58 degree rooms is cold. The locals were dressed like it was below zero.
Our car was from the mainland so it had a heater and we rode around for a few hours to warm up. We did not have any blankets. They were in storage.