Manassas, Virginia, 7,345 students in 11 schools

Manassas City Public Schools Snow Day Predictor

Q: How much snow does Manassas get?

About 10.2 inches a winter at a NOAA weather station 2.9 miles away, averaged over 7 winters. Between December 1 and March 31 that brings 1.9 weekday mornings a year with 2 inches of new snow or more, and 0.4 with 4 inches or more.

Q: What was the biggest snow day near Manassas?

8 inches on January 14, 2019, the largest single day at a NOAA weather station 2.9 miles away in 7 winters. The snowiest winter was 2018 to 2019, with 20.6 inches.

Q: Does Manassas get more snow days than other Virginia districts?

Manassas averages 0.4 weekday mornings a winter with 4 inches of new snow or more, more than 50 percent of the 116 Virginia districts with a station record.

Q: How does the Manassas snow day predictor work?

It reads the National Weather Service forecast for Manassas 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 Manassas’s own big snow morning: 4.2 inches, the top tenth of snowy weekday mornings at a NOAA weather station 2.9 miles away.

The odds of a closing or a delay on the next three school mornings in Manassas, measured against Manassas's own big snow morning of 4.2 inches.

The next three school mornings

Will Manassas close tomorrow?

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

Ten winters of school mornings

Manassas’s snow record

10.2inches of snow a winter

1.9school mornings a winter with 2 in of new snow or more

0.4with 4 in or more

4.2 ina big snow morning in Manassas: the top tenth of snowy school mornings

0school mornings a winter at 0 F or colder

More 4 inch school mornings than 50% of the 116 Virginia districts with a station record.

0.1Nov

1Dec

6.7Jan

1.2Feb

1.2Mar

Average snowfall by month, inches

Biggest day 8 in on January 14, 2019
Snowiest winter 2018 to 2019, 20.6 in
6 in mornings 0.3 a winter
1 in mornings 2.4 a winter

Measured at a NOAA weather station 2.9 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 Virginia rule

How Virginia counts a lost day

Virginia requires at least 180 teaching days or 990 teaching hours, or state aid is reduced. After 5 closures, only one of every two further days must be made up; the Board of Education can also waive make-up when every reasonable effort is exhausted.

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

Next door

Districts near Manassas

District	Snow a winter	4 in mornings
Manassas Park City Public SchoolsManassas Park	10.2 in	0.4
Prince William County Public SchoolsManassas	10.2 in	0.4
Fairfax County Public SchoolsFalls Church	13.1 in	0.8
Loudoun County Public SchoolsAshburn	12.1 in	0.8
Fauquier County Public SchoolsWarrenton	10 in	0.3
Arlington County Public SchoolsArlington	8.1 in	0.4

The schools

11 schools

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

High

Osbourn High

Middle

Grace E. Metz Middle
Mayfield Intermediate
Baldwin Intermediate

Elementary

Baldwin Elementary
Richard C. Haydon Elementary
Jennie Dean Elementary
Weems Elementary
George Carr Round Elementary

Other schools

Governor's STEM Academy at Osburn High School
Joseph B. Johnson Learning Center

Questions

Manassas snow day questions

How much snow does Manassas get?

What was the biggest snow day near Manassas?

Does Manassas get more snow days than other Virginia districts?

How does the Manassas snow day predictor work?

How does Virginia handle snow days?

More winter

More for Virginia 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.Virginia winter forecastThe season ahead for Virginia: 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.