what temp do schools close

There’s no single temperature where all schools automatically close; it depends on the district, region, and whether it’s just cold or also windy/icy.

Key point: there’s no universal cutoff

Most districts don’t publish a strict “if it’s X degrees, we close” rule. Instead, they look at:

• Actual air temperature.
• Wind chill (“feels like” temperature).
• Road and sidewalk conditions (ice, snow, visibility).

• How many students walk, wait for buses, or don’t have proper winter gear.

• Whether buses can start and run safely in the cold.

So two nearby districts can make totally different calls on the same morning.

Typical ranges people talk about

Patterns from U.S. and Canadian districts and weather guidance look roughly like this (not a guarantee):

• Around 0°F to −10°F (−18°C to −23°C) wind chill:
  Many schools stay open if roads are fine, but may delay start times, especially if buses struggle to start.

• Around −15°F to −20°F (−26°C to −29°C) wind chill:
  Some districts start considering delays or closures, especially if lots of kids walk or wait outside for long periods.

• Around −25°F to −35°F (−32°C to −37°C) wind chill:
  Quite a few districts and Canadian boards are likely to close or at least delay, because exposed skin can be at risk in minutes.

One example: a U.S. school district explains that they look hard at closures when wind chills approach levels where frostbite can happen in 30 minutes or less, not just at the raw temperature. Another local news review of district policies found some use thresholds like wind chills of −25°F or colder as an informal line where closures become likely.

What actually drives the decision

Superintendents usually check several things before dawn:

• Weather service forecasts and wind-chill warnings.
• Road checks by transportation staff and local authorities.
• How long students would be outside (bus stops, walking distance).
• Whether they can notify families early enough, especially for working parents.

Some districts say explicitly they won’t close for cold alone unless there’s an official wind chill advisory or warning from the National Weather Service or equivalent.

Quick reality check for you

If you’re wondering, “Will my school close?”:

1. Look up your district’s “Inclement Weather” or “Winter Weather” page; many have a short policy explanation.

2. Check if your area has a wind chill warning or advisory from your national or local weather agency.

3. Remember they can also close for ice, freezing rain, or heavy snow , even if the number on the thermometer isn’t that low.

In practice, schools tend to close more reliably for dangerous roads than for cold alone, unless the wind chill is in that extreme −25°F and below zone or there’s an official warning.

TL;DR: There’s no universal “schools close at X°F,” but many districts start seriously considering closure or delay when wind chills drop into the −20°F to −30°F range, especially with lots of walkers and long bus waits, and they almost always weigh road and ice conditions just as heavily.