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Ann Arbor, Michigan, 16,978 students in 32 schools

Ann Arbor Public Schools Snow Day Predictor

The odds of a closing or a delay on the next three school mornings in Ann Arbor, measured against Ann Arbor's own big snow morning of 2.4 inches.

The next three school mornings

Will Ann Arbor close tomorrow?

Reading the National Weather Service forecast for the overnight and the bus hours in Ann Arbor.
The Ann Arbor playbook

How Ann Arbor calls a snow day

When the call comes

The evening before by 8:00pm, if the weather dictates, or no later than 6:00am if the snow falls overnight.

“School closures will be announced the evening before by 8:00pm, if the weather dictates, or no later than 6:00am if the snow falls overnight.”
Source

How families hear

By phone call, email and the district website.

“Staff and AAPS families will be notified via a phone call and email by 6:00 am if school is closed for the day. You can also find this information at: AAPS Hotline – 734-994-8684”
Weather Closure Protocol - Ann Arbor Public Schools

6 built in snow days

On the 2026 to 2027 calendar, listed as “Act of God Days (30 hours waived by the State of Michigan)”.

“The State of Michigan allows for 30-hours of school instructional time to be waived due to inclement weather or “Act of God Days”. That equals about 6 school days that the district can be closed without having to make up the time.”
Source

Making up a lost day

Instructional time lost beyond the 30 waived hours must be made up.

“If AAPS exceeds the 30-hours of loss of instruction, the district will be required to make up the instructional time lost.”
Source

The 2026 to 2027 calendar

  • First day August 31, 2026
  • Winter break Dec 21 to Jan 1
  • February break Feb 12 to Feb 15
  • Last day June 16, 2027
District calendar

Read from Ann Arbor’s own pages on October 8, 2026; the district site is a2schools.org.

Ten winters of school mornings

Ann Arbor’s snow record

50.7inches of snow a winter
4.4school mornings a winter with 2 in of new snow or more
1.4with 4 in or more
2.4 ina big snow morning in Ann Arbor: the top tenth of snowy school mornings
3school mornings a winter at 0 F or colder
6.2Nov
9.6Dec
14.3Jan
12.1Feb
6Mar
Average snowfall by month, inches
  • Biggest day 8.9 in on November 12, 2019
  • Snowiest winter 2017 to 2018, 79.4 in
  • 6 in mornings 0.7 a winter
  • 1 in mornings 10.1 a winter

Measured at a NOAA weather station 2.3 miles away. Mornings are the 7 am snow reading on a weekday from December 1 through March 31, over the ten winters from 2016 to 2017 through 2025 to 2026, from NOAA GHCN Daily.

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The Michigan rule

How Michigan counts a lost day

Michigan requires at least 180 days and 1,098 hours of pupil instruction. The first 6 days (or the same hours) lost to conditions outside the district's control, such as severe storms, are counted as instruction; up to 3 more can be approved by the State Superintendent.

The Michigan rules in the agency’s own words, and every Michigan district

Next door

Districts near Ann Arbor

DistrictSnow a winter4 in mornings
Ypsilanti Community SchoolsYpsilanti50.7 in1.4
Saline Area SchoolsSaline28.7 in1
Lincoln Consolidated School DistrictYpsilanti50.7 in1.4
Dexter Community School DistrictDexter31.1 in0.9
Milan Area SchoolsMilan28.7 in1
Van Buren Public SchoolsBelleville39.5 in1.4
The schools

32 schools

Every school in Ann Arbor follows the district’s call: one closing covers them all.

High

  • Pioneer High School
  • Huron High School
  • Skyline High School
  • Community High School
  • Pathways To Success Academic Campus
  • Correctional Services

Middle

  • Slauson Middle School
  • Clague Middle School
  • Tappan Middle School
  • Scarlett Middle School
  • Forsythe Middle School

Elementary

  • Ann Arbor STEAM at Northside School
  • Ann Arbor Open at Mack School
  • Thurston Elementary School
  • Martin Luther King Elem School
  • Burns Park Elementary School
  • Uriah H Lawton School
  • Wines Elementary School
  • Carpenter School
  • John Allen School
  • Mary D Mitchell School
  • Haisley Elementary School
  • Logan Elementary School
  • Eberwhite School
  • Abbot School
  • Dicken Elementary School
  • Bach Elementary School
  • Angell School
  • Lakewood Elementary School
  • Pittsfield School
  • Pattengill School
  • Clifford E Bryant Comm School
Questions

Ann Arbor snow day questions

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More winter

More for Michigan snow days

Snow day predictorClosing and delay odds for any ZIP, with the snowiest districts in the country.Snow depth mapHow much snow is on the ground right now, measured, across the country.First snow datesWhen the first measurable snow usually lands where you live.Frozen pipesThe nights cold enough to freeze a pipe, and what to do before one.Snow plow trackerWhere the plows are during a storm, city by city.Michigan winter forecastThe season ahead for Michigan: snowfall, cold and the first snow.
A residential street under deep snow on a bright blue morning, cars parked along the curb buried into smooth white mounds, one set of tire tracks down the middle
The morning after a big one: cars buried to the mirrors and one set of tracks down the middle. A street like this is a closing, no debate. Photo, Fairfax, Virginia, January 2016: Jarek Tuszyński, CC BY 4.0

The odds are a forecast read, and the superintendent makes the call: the district’s own announcement is the one to follow.