South Plainfield, New Jersey, 3,694 students in 8 schools

South Plainfield Borough School District Snow Day Predictor

Q: How much snow does South Plainfield get?

About 22.4 inches a winter at a NOAA weather station 6.1 miles away, averaged over 10 winters. Between December 1 and March 31 that brings 2 weekday mornings a year with 2 inches of new snow or more, and 1.3 with 4 inches or more.

Q: What was the biggest snow day near South Plainfield Borough?

16 inches on February 23, 2026, the largest single day at a NOAA weather station 6.1 miles away in 10 winters. The snowiest winter was 2017 to 2018, with 44.5 inches.

Q: Does South Plainfield Borough get more snow days than other New Jersey districts?

South Plainfield Borough averages 1.3 weekday mornings a winter with 4 inches of new snow or more, more than 61 percent of the 486 New Jersey districts with a station record.

Q: How does the South Plainfield Borough snow day predictor work?

It reads the National Weather Service forecast for South Plainfield 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 South Plainfield Borough’s own big snow morning: 5.3 inches, the top tenth of snowy weekday mornings at a NOAA weather station 6.1 miles away.

The odds of a closing or a delay on the next three school mornings in South Plainfield Borough, measured against South Plainfield Borough's own big snow morning of 5.3 inches.

The next three school mornings

Will South Plainfield Borough close tomorrow?

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

Ten winters of school mornings

South Plainfield Borough’s snow record

22.4inches of snow a winter

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

1.3with 4 in or more

5.3 ina big snow morning in South Plainfield Borough: the top tenth of snowy school mornings

More 4 inch school mornings than 61% of the 486 New Jersey districts with a station record.

0.5Nov

3.3Dec

5.6Jan

8.7Feb

4.2Mar

Average snowfall by month, inches

Biggest day 16 in on February 23, 2026
Snowiest winter 2017 to 2018, 44.5 in
6 in mornings 0.6 a winter
1 in mornings 3.5 a winter

Measured at a NOAA weather station 6.1 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 New Jersey rule

How New Jersey counts a lost day

New Jersey requires at least 180 days of school, or the district loses state aid.

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

Next door

Districts near South Plainfield Borough

District	Snow a winter	4 in mornings	Built in days
Piscataway Township School DistrictPiscataway	22.4 in	1.3
Plainfield City School DistrictPlainfield	11.8 in	0.3
North Plainfield Borough School DistrictNorth Plainfield	24.8 in	1.4
Edison Township School DistrictEdison	22.2 in	1.3	3
New Brunswick City School DistrictNew Brunswick	22.4 in	1.3
Scotch Plains-Fanwood Regional School DistrictScotch Plains	24.8 in	1.4

The schools

8 schools

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

High

South Plainfield High School

Middle

Grant Elementary School
South Plainfield Middle School

Elementary

Roosevelt Elementary School
John E. Riley Elementary School
Franklin Elementary School
John F Kennedy Elementary School

Other schools

John E. Riley Preschool Annex

Questions

South Plainfield Borough snow day questions

How much snow does South Plainfield get?

What was the biggest snow day near South Plainfield Borough?

Does South Plainfield Borough get more snow days than other New Jersey districts?

How does the South Plainfield Borough snow day predictor work?

How does New Jersey handle snow days?

More winter

More for New Jersey 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.New Jersey winter forecastThe season ahead for New Jersey: 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.