How to use the Snow Day Calculator
- Enter your location. Type your city, town, ZIP code or postal code and select your country.
- Tell us about your district. Leave it on Auto, or choose how easily your school district usually closes.
- Get your prediction. See the snow day chance for the next school day plus the rest of the week.
Key features
- Live forecast dataUses hourly forecasts for snowfall, temperature, wind gusts and freezing rain.
- Overnight snowfall focusWeighs snow from 6 pm to 9 am — the window that matters for closures.
- Wind-chill & ice awareDangerous cold and freezing rain increase the chance of closures.
- 5-day outlookA probability for every school day this week; weekends are skipped.
- US, Canada, UK & moreSearch by city or postal code in snowy countries worldwide.
- Free, no sign-upCheck as often as you like on any device.
How does the snow day calculator work?
Schools usually decide on closures early in the morning, based on how much snow fell overnight, whether roads and buses can run safely, and how cold it is at the bus stop. Our snow day calculator uses live hourly forecast data from Open-Meteo to look at exactly those factors for your location:
- Overnight snowfall between 6 pm the evening before and 9 am on the school day.
- Snow continuing during the day, which makes afternoon bus routes risky.
- Freezing rain and drizzle — even a thin layer of ice often closes schools.
- Wind chill — extreme cold (around −25 °C / −13 °F or lower) can close schools even without snow.
- Wind gusts that cause blowing and drifting snow.
- Local tolerance — a district in Georgia may close for 1 inch of snow, while one in Minnesota or Quebec may stay open with 6 inches.
How much snow does it take to close school?
| Region type | Typical closure threshold |
|---|---|
| Rarely snowy (US South, UK, Pacific NW lowlands) | 1–2 inches (2–5 cm), or any ice |
| Moderate snow (Mid-Atlantic, Midwest, Southern Ontario) | 3–5 inches (8–13 cm) |
| Snow belt (Great Lakes, New England, Prairies, Quebec) | 6+ inches (15+ cm), or blizzard conditions |
Snow day vs delayed opening
When snow ends early in the morning or roads just need extra time to be ploughed, many districts choose a 1–2 hour delay instead of a full closure. A prediction between 30% and 55% often means a delay is possible.
Tips for snow days
- Sign up for your school district’s text or email alerts — they are the official source.
- Check local TV and radio closings lists early in the morning.
- Prepare the night before: charge devices for remote learning, lay out warm clothes, and plan childcare.
Frequently asked questions
How accurate is the snow day calculator?
It is based on the latest hourly weather forecast, so it is most reliable for the next 24–48 hours. Forecasts change, and every district makes its own decision, so treat the result as a guide.
Can I use my ZIP code?
Yes. Enter a US ZIP code, Canadian postal code or UK postcode area and select your country. If a postal code isn’t found, try your nearest city name.
Does it work in Canada and the UK?
Yes. It works anywhere with a weather forecast. Select your country to get more accurate location matches and metric units.
Why is my chance low even though it’s snowing?
The calculator focuses on overnight and early-morning snow, ice and extreme cold. Light daytime flurries rarely close schools, especially in snowy regions.
When is the best time to check?
Check the evening before, then again early in the morning — forecasts improve as the storm gets closer.
Last updated: · Published by WhiteLabel.net.in