Mercer, Pennsylvania, 1,027 students in 3 schools

Mercer Area School District Snow Day Predictor

Q: How much snow does Mercer get?

About 28.1 inches a winter at a NOAA weather station 15.2 miles away, averaged over 9 winters. Between December 1 and March 31 that brings 3.7 weekday mornings a year with 2 inches of new snow or more, and 0.8 with 4 inches or more.

Q: What was the biggest snow day near Mercer?

12.5 inches on January 26, 2026, the largest single day at a NOAA weather station 15.2 miles away in 9 winters. The snowiest winter was 2017 to 2018, with 57.7 inches.

Q: How does the Mercer snow day predictor work?

It reads the National Weather Service forecast for Mercer through the night and the 5 to 8 am bus run, adds winter alerts and the Winter Storm Severity Index, and measures the snow against Mercer’s own big snow morning: 2.7 inches, the top tenth of snowy weekday mornings at a NOAA weather station 15.2 miles away.

Q: Can Pennsylvania schools hold a remote day instead?

A district with a PDE accepted plan can turn up to five closure days a year, including snow days, into Flexible Instructional Days that count as school days; they can be online, offline or both.

The odds of a closing or a delay on the next three school mornings in Mercer, measured against Mercer's own big snow morning of 2.7 inches.

The next three school mornings

Will Mercer close tomorrow?

Reading the National Weather Service forecast for the overnight and the bus hours in Mercer.

Ten winters of school mornings

Mercer’s snow record

28.1inches of snow a winter

3.7school mornings a winter with 2 in of new snow or more

0.8with 4 in or more

2.7 ina big snow morning in Mercer: the top tenth of snowy school mornings

5.1school mornings a winter at 0 F or colder

1.5Nov

5.4Dec

10.9Jan

5.8Feb

3.4Mar

Average snowfall by month, inches

Biggest day 12.5 in on January 26, 2026
Snowiest winter 2017 to 2018, 57.7 in
6 in mornings 0.2 a winter
1 in mornings 8.2 a winter

Measured at a NOAA weather station 15.2 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.

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 Mercer

District	Snow a winter	4 in mornings
Grove City Area School DistrictGrove City	28.1 in	0.8
Hermitage School DistrictHermitage	51.6 in	1.3
Neshannock Township School DistrictNew Castle	28.1 in	0.8
Sharpsville Area School DistrictSharpsville	51.6 in	1.3
Sharon City School DistrictSharon	51.6 in	1.3
Greenville Area School DistrictGreenville	44.8 in	2.1

The schools

3 schools

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

High

Mercer Area SHS

Middle

Mercer Area MS

Elementary

Mercer Area El Sch

Questions

Mercer snow day questions

How much snow does Mercer get?

What was the biggest snow day near Mercer?

How does the Mercer snow day predictor work?

How does Pennsylvania handle snow days?

Can Pennsylvania schools hold a remote day instead?

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.