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Snow Day Calculator

Deer Park Union Free School District snow day calculator

Will Deer Park Union Free School District close tomorrow?

District facts

Official name
Deer Park Union Free School District
Schools
5
Grades
pre-K to grade 12
Office
Deer Park, NY
Snow a year
32 in. · 4.0 days with 3+ in.
NCES ID
3608880

National Center for Education Statistics (CCD 2024–25, EDGE GRF25); NOAA 1991–2020 normals. Not affiliated with the district.

Past winter days

We record what happened on each storm day (our chance, and whether Deer Park Union Free School District closed, delayed or opened) from parent reports. The first days appear here this winter. Report today's decision.

What it takes to close Deer Park Union Free School District

Snow line
About 7.5 in. of overnight snow
Ice line
About .18 in. of ice
Cold line
−20°F wind chill at bus time (normal winter low 27°F)
County
Suffolk County

Levels where a closure becomes likely in our model for ZIP 11729, from Deer Park Union Free School District's local snow normal: 4.0 days a year with 3 or more inches. These are model estimates, not the district's policy.

Nearby districts

DistrictSnow a yearSnow line
North Babylon Union Free School District32 in.7.5 in.
West Islip Union Free School District32 in.7.5 in.
Brentwood Union Free School District32 in.7.5 in.
Half Hollow Hills Central School District32 in.7.5 in.
Bay Shore Union Free School District32 in.7.5 in.
Lindenhurst Union Free School District26 in.6.5 in.

ZIP codes Deer Park Union Free School District serves

11703, 11729

ZIP codes that overlap the district's boundary (NCES EDGE GRF25). Some are shared with neighboring districts.

Check a different ZIP

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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.

Deer Park Union Free School District snow day questions

Is Deer Park Union Free School District closed tomorrow?

The card above shows tomorrow's chance that Deer Park Union Free School District closes or delays school, from tonight's National Weather Service forecast for the district's area. It is an estimate; only the district can announce a closure, usually on its website, by text or phone alert, and through local TV and radio.

How much snow does it take to close Deer Park Union Free School District?

There is no fixed number: the district weighs snow totals, ice, wind chill, road crews and timing. Our model treats about 7 inches of overnight snow as the level where closures become likely around ZIP 11729, which averages 32 inches of snow a year (NOAA 1991–2020 normals).

When does Deer Park Union Free School District announce snow days?

Districts usually decide early in the morning, after crews check the roads, and sometimes the evening before when a big storm is certain. Check the district's official website and alerts for the decision; we don't report official closings.

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