Some, but not all schools may have guidelines for temperatures they close schools for. Usually, there are no firm guidelines, but schools open later when the temperature and other factors are determined to be dangerous for children to go from their homes to the school. Schools seldom close for the entire day because of low temperatures, but open an hour or two later than normal.
There are no set temperatures for schools to have to close in the United States. Individual school districts make that decision based on whether going to school at a given temperature would be unsafe for students.
Laws for school closings, as far as is known, involves making up days that are missed due to weather, not about actually closing schools for weather related causes. The decision to close schools for weather is made by each school district based on weather conditions and keeping students safe.
What schools are close
There is no set temperature for schools to close in the United States. It is a decision each school district makes and they are much more likely to delay the start of school for low temperatures than they are to close schools for a day.
Most public schools do not close for Patriot Day.
why did some Victorian schools close at 4pm at winter
No
Yes schools should close, because we wouldn't be able to use things that we need.
Schools didnt close
Decisions to close schools is often determined by what condition the roads are in during snow and ice storms. Officials might also close schools for other weather-related emergencies, power failure, etc.
There is no maximum limit on the amount of snow that would cause schools to close in Scotland. Once enough snow fell and the roads were not safe, schools would close. More snow might mean that schools were closed for a longer period of time.
In the UK all schools are closed on a Bank Holiday.