Fairfax County Public Schools Snow Day Predictor
The odds of a closing or a delay on the next three school mornings in Fairfax, measured against Fairfax's own big snow morning of 4 inches.
Will Fairfax close tomorrow?
How Fairfax calls a snow day
When the call comes
By approximately 4:30 a.m.
“In that case, the superintendent makes the decision of whether to delay or close schools by approximately 4:30 a.m.”Source
How families hear
By the district website, the district app, social media, email, text message, local TV and radio.
“Email and text messages sent to parents (using the parent contact information listed in SIS ParentVUE).”Weather Cancellation Procedures
A 2 hour delay
On a delay morning every school starts 2 hours late.
“Student pick up time will be two hours later than it normally is.”Delay schedule
The 2026 to 2027 calendar
- First day August 24, 2026
- Winter break Dec 21 to Jan 3
- Last day June 16, 2027
Read from Fairfax’s own pages on October 8, 2026; the district site is fcps.edu.
Fairfax’s snow record
More 4 inch school mornings than 84% of the 116 Virginia districts with a station record.
- Biggest day 6.5 in on January 4, 2022
- Snowiest winter 2018 to 2019, 24.4 in
- 6 in mornings 0.2 a winter
- 1 in mornings 3.1 a winter
Measured at a NOAA weather station 3.9 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.
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
Districts near Fairfax
| District | Snow a winter | 4 in mornings |
|---|---|---|
| Arlington County Public SchoolsArlington | 8.1 in | 0.4 |
| Alexandria City Public SchoolsAlexandria | 8.1 in | 0.4 |
| Manassas Park City Public SchoolsManassas Park | 10.2 in | 0.4 |
| Manassas City Public SchoolsManassas | 10.2 in | 0.4 |
| Loudoun County Public SchoolsAshburn | 12.1 in | 0.8 |
| Prince William County Public SchoolsManassas | 10.2 in | 0.4 |
223 schools, the 40 largest here
Every school in Fairfax follows the district’s call: one closing covers them all.
High
- Lake Braddock Secondary, Burke
- Robinson Secondary, Fairfax
- Hayfield Secondary, Alexandria
- Chantilly High, Chantilly
- West Springfield High, Springfield
- Westfield High, Chantilly
- West Potomac High, Alexandria
- Oakton High, Vienna
- Centreville High, Clifton
- South Lakes High, Reston
- Woodson High, Fairfax
- McLean High, McLean
- Justice High
- Herndon High, Herndon
- Fairfax High, Fairfax
- Edison High, Alexandria
- South County High, Lorton
- Annandale High, Annandale
- Marshall High
- Falls Church High
- Langley High, McLean
- Madison High, Vienna
- Thomas Jefferson High for Science and Technology, Alexandria
- Mount Vernon High, Alexandria
- Lewis High, Springfield
Middle
- Glasgow Middle, Alexandria
- Sandburg Middle, Alexandria
- Carson Middle, Herndon
- Longfellow Middle
- Frost Middle, Fairfax
- Thoreau Middle, Vienna
- Irving Middle, Springfield
- Kilmer Middle, Vienna
- Johnson Middle, Fairfax
- Cooper Middle, McLean
- Hughes Middle, Reston
- Twain Middle, Alexandria
- South County Middle, Lorton
Elementary
- Hutchison Elementary, Herndon
- Kent Gardens Elementary, McLean
Fairfax snow day questions
More for Virginia snow days
The odds are a forecast read, and the superintendent makes the call: the district’s own announcement is the one to follow.