Ann Arbor Snow Day Predictor: Will Ann Arbor Schools Close Tomorrow?
Ann Arbor is in southeast Michigan, about 40 miles west of Detroit, and gets most of its snow from passing storm systems rather than lake-effect bands.
Ann Arbor Public Schools and neighboring Washtenaw County districts such as Ypsilanti and Saline each decide on their own, usually early in the morning after checking the roads.
Forecast data may be out of date. We're working on it; check your local forecast too.
Ann Arbor snow day chances
Ann Arbor, MI
Friday
Unlikely
<1%
chance of a snow day
<1% chance of a delay
Monday
Unlikely
<1%
chance of a snow day
<1% chance of a delay
Overnight snow 0.0"Usually closes at 6"
- No meaningful snow or ice in the forecast for Friday morning.
- Ann Arbor usually needs about 6" to close schools (normal snowfall 59" a year).
Did your school decide for Friday? Tap to report:
Estimate, not official. Check your school district for the final decision.
Updated . Not in Ann Arbor? Enter your own ZIP code above.
How much snow closes school in Ann Arbor?
Ann Arbor gets about 59" of snow in a normal year (NOAA 1991–2020 normals, averaged from 6 nearby stations including Ann Arbor Se, Ann Arbor U Of Mich, Chelsea). Based on that, our model treats about 6" of overnight snow as the point where a closure becomes a coin flip. Less than half of that rarely closes schools here; one and a half times that usually does.
Ann ArborOther placesModel estimate from NOAA normal snowfall
Ann Arbor average snowfall by month
Winter weather alerts and forecaster notes for Ann Arbor
No winter storm, ice or cold alerts from the National Weather Service are in effect for Ann Arbor right now.
NWS Detroit/Pontiac MI · Key Messages
- Rain showers continue this evening following passage of a cold front this afternoon.
- Air becomes sufficiently cold for lake effect rain/snow activation late tonight and Friday morning.
- Minor slushy snow accumulation is likely across the Thumb, mainly near Saginaw Bay and near the Lake Huron shoreline, southward toward the I-69 corridor.
- Rain/snow showers gradually shift offshore Friday night and Saturday with little additional snow accumulation.
Excerpt from the National Weather Service Detroit/Pontiac MI Area Forecast Discussion, issued Nov 12, 3:58 PM EST. Read the full discussion.
Ann Arbor 7-day snow forecast
No snow in the 7-day forecast for Ann Arbor right now.
Ann Arbor's biggest snow days last winter (2025–26)
Daily snowfallSource: NOAA GHCN-Daily
In the 2025–26 winter, NOAA's Ann Arbor 2.1 Wnw station (3 km from Ann Arbor) recorded39.8" of snow. Its biggest single-day totals:
| Date | Snowfall |
|---|---|
| Sun, Nov 30, 2025 | 5" |
| Thu, Jan 15, 2026 | 4" |
| Wed, Dec 10, 2025 | 3.5" |
| Mon, Jan 26, 2026 | 2.2" |
| Thu, Jan 1, 2026 | 2" |
Source: NOAA GHCN-Daily, station US1MIWS0011.
Ann Arbor school districts: where closings are announced
These districts make the official call for schools around Ann Arbor. Their websites post closings and delays first:
Snow day chances near Ann Arbor
| Place | Distance | Friday | Usually closes at |
|---|---|---|---|
| Pittsfield Township, MI | 5 mi | <1% | 6" |
| Ypsilanti Township, MI | 8 mi | <1% | 6" |
| Canton Township, MI | 13 mi | <1% | 6" |
| Van Buren Township, MI | 13 mi | <1% | 6" |
| Plymouth Township, MI | 14 mi | <1% | 6" |
| Hamburg Township, MI | 15 mi | <1% | 5" |
| Lyon Township, MI | 16 mi | <1% | 6" |
| Westland, MI | 18 mi | <1% | 5" |
Snow day pages for other cities
Ann Arbor snow day FAQ
Will Ann Arbor schools close tomorrow?
Our current estimate for Ann Arbor is <1% for a snow day and <1% for a delay on Friday, and <1% for a snow day on Monday. No meaningful snow or ice in the forecast for Friday morning. This is an estimate, not an announcement: check your district for the official decision.
How much snow does it take to close schools in Ann Arbor?
Based on Ann Arbor's normal snowfall of about 59 inches a year, our model puts the closing point at about 6" of snow falling overnight. Ice, heavy wet snow, timing during the morning commute and active winter storm warnings can lower that.
How much snow did Ann Arbor get last winter?
NOAA's Ann Arbor 2.1 Wnw station recorded 39.8 inches in the 2025–26 winter. The biggest single day was Nov 30, 2025 with 5 inches.
Where do Ann Arbor schools announce snow days?
Each district posts closings and delays on its own website and alert system: Ann Arbor Public Schools, Ypsilanti Community Schools, Saline Area Schools. Local TV stations also carry closing lists.