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King of Prussia, Pennsylvania, 4,477 students in 7 schools

Upper Merion Area School District Snow Day Predictor

The odds of a closing or a delay on the next three school mornings in Upper Merion, measured against Upper Merion's own big snow morning of 5.4 inches.

The next three school mornings

Will Upper Merion close tomorrow?

Reading the National Weather Service forecast for the overnight and the bus hours in King of Prussia.
Ten winters of school mornings

Upper Merion’s snow record

15.6inches of snow a winter
2.6school mornings a winter with 2 in of new snow or more
1.1with 4 in or more
5.4 ina big snow morning in Upper Merion: the top tenth of snowy school mornings
0.8school mornings a winter at 0 F or colder
0.6Nov
2.4Dec
4.8Jan
5.6Feb
2.3Mar
Average snowfall by month, inches
  • Biggest day 12 in on February 2, 2021
  • Snowiest winter 2020 to 2021, 45.3 in
  • 6 in mornings 0.3 a winter
  • 1 in mornings 3 a winter

Measured at a NOAA weather station 2.3 miles away. Mornings are the 7 am snow reading on a weekday from December 1 through March 31, over the ten winters from 2016 to 2017 through 2025 to 2026, from NOAA GHCN Daily.

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The Pennsylvania rule

How Pennsylvania counts a lost day

Pennsylvania requires either 180 days, or hours: 900 for kindergarten through grade 6 and 990 for grades 7 to 12, as the district chooses. The state forgives no days; districts are expected to build make-up days into the calendar for closures beyond any Flexible Instructional Days.

The Pennsylvania rules in the agency’s own words, and every Pennsylvania district

Next door

Districts near Upper Merion

DistrictSnow a winter4 in mornings
Tredyffrin-Easttown School DistrictWayne15.6 in1.1
Norristown Area School DistrictNorristown15.6 in1.1
Radnor Township School DistrictWayne12.7 in0.8
Methacton School DistrictEagleville15.6 in1.1
Colonial School DistrictPlymouth Meeting12.7 in0.8
Phoenixville Area School DistrictPhoenixville15.6 in1.1
The schools

7 schools

Every school in Upper Merion follows the district’s call: one closing covers them all.

High

  • Upper Merion Area HS

Middle

  • Upper Merion Area MS

Elementary

  • Caley El Sch
  • Gulph EL Sch
  • Candlebrook El Sch
  • Roberts El Sch, Wayne
  • Bridgeport El Sch, Bridgeport
Questions

Upper Merion snow day questions

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More winter

More for Pennsylvania snow days

Snow day predictorClosing and delay odds for any ZIP, with the snowiest districts in the country.Snow depth mapHow much snow is on the ground right now, measured, across the country.First snow datesWhen the first measurable snow usually lands where you live.Frozen pipesThe nights cold enough to freeze a pipe, and what to do before one.Snow plow trackerWhere the plows are during a storm, city by city.Pennsylvania winter forecastThe season ahead for Pennsylvania: snowfall, cold and the first snow.
A residential street under deep snow on a bright blue morning, cars parked along the curb buried into smooth white mounds, one set of tire tracks down the middle
The morning after a big one: cars buried to the mirrors and one set of tracks down the middle. A street like this is a closing, no debate. Photo, Fairfax, Virginia, January 2016: Jarek Tuszyński, CC BY 4.0

The odds are a forecast read, and the superintendent makes the call: the district’s own announcement is the one to follow.