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Snow Day Calculator

William Penn School District snow day calculator

Will William Penn School District close tomorrow?

District facts

Official name
William Penn School District
Schools
11
Grades
kindergarten to grade 12
Office
Lansdowne, PA
Official site
www.wpsd.k12.pa.us
Snow a year
16 in. · 2.0 days with 3+ in.
NCES ID
4226390

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 William Penn 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 William Penn School District

Snow line
About 5.5 in. of overnight snow
Ice line
About .16 in. of ice
Cold line
−20°F wind chill at bus time (normal winter low 30°F)
County
Delaware County

Levels where a closure becomes likely in our model for ZIP 19050, from William Penn School District's local snow normal: 2.0 days a year with 3 or more inches. These are model estimates, not the district's policy.

Nearby districts

DistrictSnow a yearSnow line
Upper Darby School District16 in.5.5 in.
Interboro School District23 in.6 in.
Southeast Delco School District23 in.6 in.
Ridley School District23 in.6 in.
School District of Philadelphia16 in.5.5 in.
Chester-Upland School District23 in.6 in.

ZIP codes William Penn School District serves

19018, 19023, 19050

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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—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.

William Penn School District snow day questions

Is William Penn School District closed tomorrow?

The card above shows tomorrow's chance that William Penn 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 William Penn School District?

There is no fixed number: the district weighs snow totals, ice, wind chill, road crews and timing. Our model treats about 6 inches of overnight snow as the level where closures become likely around ZIP 19050, which averages 16 inches of snow a year (NOAA 1991–2020 normals).

When does William Penn 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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