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Snow Day Calculator

Snow Day Calculator for Baltimore, MD

Will Baltimore schools be closed tomorrow?

Tomorrow by school district

Chance of school closure and delay tomorrow, Baltimore-area districts
DistrictClosureLink
Baltimore City Public Schools
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Baltimore County Public Schools
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Districts serving Baltimore ZIP codes (NCES). Chances from the National Weather Service forecast.

Not listed? Enter your ZIP

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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.

Snow in Baltimore: what is normal

Snow a year
19 in.
Days with 3+ in.
2.0
Days with 1+ in.
4.6

NOAA NCEI U.S. Climate Normals 1991–2020, Baltimore Wash Intl. Airport, MD station. Averages per year.

Baltimore gets snow most winters, so districts plan for it. The calculator scales each storm by this local normal: in Baltimore, closures usually take about 6 inches overnight, or ice, or snow at the worst time of the morning. How the calculator works.

What closes schools in Baltimore (our model)

Overnight snowabout 6 inches
Ice (freezing rain)about 0.16 in.
Wind chill at bus time−20°F
Normal winter low27°F

Levels where a closure becomes likely in our model, from NOAA normals. Not a district policy.

ZIP codes covered

21202, 21233, 21201, 21287, 21231, 21217, 21213, 21218, 21230, 21205, 21211, 21223, 21216, 21251, 21224, 21210, 21214, 21229, 21212, 21206, 21239, 21215

ZIP codes inside or near Baltimore. Each has its own forecast; enter yours above for your district.

Baltimore snow day questions

Will Baltimore, MD schools be closed tomorrow?

The calculator above shows tomorrow's chance of a closure and of a delay for each Baltimore-area school district, from tonight's National Weather Service forecast. It updates every hour from the afternoon until morning. It is an estimate: your district makes and announces the decision, often early in the morning or the evening before a big storm.

How much snow does Baltimore, MD get?

Baltimore averages 19 inches of snow a year, with about 2.0 days a year of 3 inches or more and 4.6 days of an inch or more (NOAA 1991–2020 climate normals, Baltimore Wash Intl. Airport, MD station).

How much snow does it take to close schools in Baltimore, MD?

Our model treats about 6 inches of snow falling overnight as the level where closures become likely in Baltimore, because the area sees 2.0 days a year with 3+ inches and is used to plowing. Ice, a winter storm warning, or heavy snow right at bus time can close schools with less.

Baltimore: did school close today?

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