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Snow Day Calculator

Snow Day Calculator for Manchester, NH

Will Manchester schools be closed tomorrow?

Tomorrow by school district

Chance of school closure and delay tomorrow, Manchester-area districts
DistrictClosureLink
Manchester School District
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Londonderry School District
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Goffstown School District
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Districts serving Manchester ZIP codes (NCES). Chances from the National Weather Service forecast.

Not listed? Enter your ZIP

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—chance of a delay

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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 Manchester: what is normal

Snow a year
53 in.
Days with 3+ in.
6.1
Days with 1+ in.
12.2

NOAA NCEI U.S. Climate Normals 1991–2020, Massabesic Lake, NH station. Averages per year.

Manchester gets snow most winters, so districts plan for it. The calculator scales each storm by this local normal: in Manchester, closures usually take about 9 inches overnight, or ice, or snow at the worst time of the morning. How the calculator works.

What closes schools in Manchester (our model)

Overnight snowabout 9 inches
Ice (freezing rain)about 0.19 in.
Wind chill at bus time−29°F
Normal winter low16°F

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

ZIP codes covered

03101, 03104, 03103, 03109, 03102

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

Manchester snow day questions

Will Manchester, NH schools be closed tomorrow?

The calculator above shows tomorrow's chance of a closure and of a delay for each Manchester-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 Manchester, NH get?

Manchester averages 53 inches of snow a year, with about 6.1 days a year of 3 inches or more and 12.2 days of an inch or more (NOAA 1991–2020 climate normals, Massabesic Lake, NH station).

How much snow does it take to close schools in Manchester, NH?

Our model treats about 9 inches of snow falling overnight as the level where closures become likely in Manchester, because the area sees 6.1 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.

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