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Snow Day Calculator

Snow Day Calculator for Michigan

Will schools in Michigan be closed tomorrow?

Tomorrow by city

Chance of school closure and delay tomorrow in Michigan
CityClosureLink
DetroitDetroit Public Schools Community District
—
Grand RapidsGrand Rapids Public Schools
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WarrenCenter Line Public Schools
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Ann ArborAnn Arbor Public Schools
—
LansingLansing Public School District
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Chance for each city's main ZIP code. Your district may differ: enter your ZIP above.

Tomorrow by county

  • 0–29%Unlikely
  • 30–59%Possible
  • 60–79%Likely
  • 80–95%Very likely
  • No school
Chance of school closures tomorrow by county, updated hourly. Estimate from the National Weather Service forecast; your district makes the call.

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—chance of closure
—chance of a delay

Snow by hour

Adjust for your school

Rough adjustments, saved on this device only. What they do

From the National Weather Service forecast, updated hourly. Estimate only. Your district makes the call.

How much snow Michigan gets

PlacePopulationSnow a yearDays 3+ in.
Detroit645,70531 in.3.8
Grand Rapids200,11775 in.7.7
Warren137,68628 in.3.6
Sterling Heights134,34232 in.3.0
Ann Arbor122,92559 in.4.7

NOAA NCEI U.S. Climate Normals 1991–2020, nearest station at a similar elevation. Population: U.S. Census Bureau, 2024 estimates. Across Michigan, yearly snowfall ranges from 26 to 208 inches.

Cities in Michigan

School districts (187)

Michigan snow day questions

Will schools in Michigan be closed tomorrow?

Enter your ZIP code above for your district's chance of a closure or delay tomorrow, or pick a city below. Each district decides for itself; the calculator estimates the chance from tonight's National Weather Service forecast and updates hourly from the afternoon until morning.

How much snow falls in Michigan?

It depends a lot on where you are: average yearly snowfall across Michigan ranges from 26 to 208 inches (NOAA 1991–2020 normals at weather stations near 992 ZIP codes). Among the largest places, Grand Rapids averages 75 inches.

How much snow closes schools in Michigan?

It varies by district and by how often each area gets snow. In the snowiest parts of Michigan, closures usually take several inches overnight; in places that rarely see snow, an inch or two can close schools. The calculator scales each storm by the local NOAA normal for your ZIP.

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