Virginia Snow Day Calculator
One state, two winters: the DC suburbs close readily on ice and hills, while the mountain west drives through totals that would shut Fairfax for a week. Check your chances with the Virginia snow day calculator.
How this Virginia snow day calculator scores your district
The score above is built from the live hourly forecast for your ZIP — snowfall, ice risk, temperature, wind and, above all, timing. Virginia gets extra weight on two local factors. The first is terrain and fleet scale: Northern Virginia runs some of the largest bus fleets in the country across hilly subdivisions and untreated side roads, so modest snow scores high there. The second is ice: much of Virginia sits in the changeover zone where snow arrives mixed with sleet and freezing rain, and ice on a hilly bus route closes schools at totals the inch count alone would never explain.
Why Virginia closes schools: ice, hills and two different winters
Virginia's winter splits along its geography. Northern Virginia — Fairfax County, one of the largest school districts in the United States, together with Loudoun, Arlington and Prince William — is suburban, hilly and ice-prone, and it closes readily. The Shenandoah Valley and the southwest mountain counties are snow-hardier, used to real winter driving, but their risk is different: winding mountain roads where a bus route can climb hundreds of feet into worse weather than the valley floor reports. Richmond and Hampton Roads sit in the ice-and-rain mix zone, where storms change over late and a forecast of rain can become a glaze by morning.
How Virginia districts decide
- Transportation staff drive the bus routes in the early morning hours, checking the hills and untreated side roads buses must actually run — Arlington Public Schools describes doing exactly this in its winter weather guidance.
- The superintendent makes the final call, consulting National Weather Service forecasts, county and state road officials, neighbouring divisions — and, in Northern Virginia, the federal government's operating status, which shapes the whole region's roads.
- Announcements follow a set pattern when districts can manage it: in the evening by 6 p.m. when the forecast allows, otherwise by 5 a.m. — Arlington's published timetable is the model many families plan around.
- The decision is county-wide: a division closes for its whole county, including its worst hill and its iciest subdivision, not for the mildest neighbourhood in it.
Virginia's 180-day rule — and the make-up formula
Virginia law sets the floor: under the Code of Virginia §22.1-98, the school year must run at least 180 teaching days or 990 teaching hours. What makes Virginia unusual is that its make-up formula is written into state policy rather than left to each division's discretion. The Arlington Public Schools Winter Weather FAQ is a clear window onto how a Virginia division runs its winter: weather codes 1–5 covering everything from a full closure to cancelled weekend activities, decisions announced by 6 p.m. or 5 a.m., and early-dismissal decisions normally announced by 11:30 a.m.
The make-up formula works like this. If five or fewer days are missed, all of them are made up — by adding days or lengthening days. If six or more days are missed, the division must make up the first five, plus one day for every two days missed beyond five. There is also a pressure valve: divisions may declare up to 10 unscheduled remote learning days per year. Arlington, for example, treats its first 12 inclement-weather days at elementary level and 15 at secondary level as traditional snow days before switching to distance learning — one reason two Virginia divisions in the same storm can announce different kinds of day.
Two Virginias: the DC suburbs and the mountains
Ask why Virginia closed and the honest answer is: which Virginia? In the DC suburbs the system is built around enormous bus fleets — Fairfax County alone runs one of the largest in America — moving children through hilly subdivisions on roads that are nobody's first plowing priority. Ice there is not an inconvenience; it is a fleet-wide risk at 6 a.m. The mountain west runs the opposite calculation: drivers and families are practised in snow, totals run higher before anyone closes, and the trigger is more often a mountain road turned dangerous by ice or wind than the snowfall itself. Neither system is softer or tougher — they are answers to different questions.
How many inches of snow cancels school in Virginia?
There is no Virginia state threshold — every division decides — but the regional pattern is consistent. In the DC metro, around 2–4 inches falling into the bus window typically closes schools, and ice closes them with less — sometimes with none. The mountain west needs more snow before it closes, but shuts for ice and wind on exposed roads at almost any total.
| What falls | When it lands | Typical call |
|---|---|---|
| Ice on hilly bus routes | Overnight into the morning window | Closure across the DC suburbs, even with little or no snow |
| 2–4 inches of snow | Falling before or during the bus window | Typical closure range for Northern Virginia divisions |
| Moderate snow, valley floor | Same storm, mountain counties | Mountain divisions may run — their call turns on ice and wind instead |
| Cold rain changing to snow | Late changeover, coastal areas | Closure possible in Hampton Roads even at low totals |
Will there be a snow day in Virginia tomorrow?
It is the question this page answers every day. Put your Virginia ZIP in the calculator above for tonight's live score at your exact location — or go straight to tomorrow's snow day chances for the morning-by-morning view, today's snow day status if weather is already moving in, and our school closing predictor for district-style closing calls. The full snow day predictor breaks down every factor behind your score.
Checking another state? The same live forecast powers our Kentucky snow day calculator and Ohio snow day calculator — or start from the main snow day calculator for any US ZIP or Canadian postal code.
Frequently asked questions
Why does Northern Virginia close for snow that Wyoming schools would drive through?
It is different systems, not softness. Northern Virginia's risk is ice on hills, moved by enormous suburban bus fleets over untreated side roads at dawn. Wyoming districts run in deep-snow country, with equipment, drivers and families built for it — and closing all winter is simply not an option there. Each system is calibrated to its own roads: Virginia closes early because its danger arrives at two inches and a glaze, not at two feet.
How many inches of snow cancels school in Virginia?
There is no official number, and the answer splits by region. The DC metro typically closes around 2–4 inches in the bus window, and on ice with less. Mountain counties need more snow but close for ice and wind. Coastal divisions close for ice and late changeovers. Timing matters as much as totals: pre-dawn snow counts double.
How cold does it have to be for school to be cancelled in Virginia?
Virginia sets no state cold threshold; each division judges its own morning. Pure cold rarely closes Virginia schools by itself — the closures come when cold arrives with ice on hilly routes, or with wind that makes the bus stop genuinely unsafe for young children standing in the dark. Expect cold to matter mainly as ice's partner.
Do Virginia snow days have to be made up?
Mostly, yes — by a formula written into state policy. Miss five days or fewer and all are made up, by added or lengthened days. Miss six or more and the division makes up the first five plus one day for every two missed beyond five. The year itself must reach at least 180 teaching days or 990 teaching hours under §22.1-98, which is what the formula protects.
Can Virginia schools switch to remote learning on a snow day?
Yes — divisions may declare up to 10 unscheduled remote learning days per year. How they use them varies: Arlington Public Schools, for instance, treats its first 12 inclement-weather days (elementary) and 15 (secondary) as traditional snow days before switching to distance learning.
When do Virginia districts announce snow closures?
The pattern Arlington publishes is the one much of the state aims for: in the evening by 6 p.m. when the forecast allows, otherwise by 5 a.m. Early-dismissal decisions are normally announced by 11:30 a.m. Divisions use numbered weather codes — Arlington's run 1 to 5, from fully closed to weekend activities cancelled — so read the code, not just the headline, before rearranging your day.
Will there be a snow day in Virginia tomorrow?
Enter your ZIP in the Virginia snow day calculator above for tonight's live score where you live — and remember that a score in Fairfax and a score in the Valley describe different risks in the same storm. Check again early in the morning, when overnight conditions are fact rather than forecast, and always confirm with your division's official announcement before changing plans.
How accurate is the Virginia snow day calculator?
It is a live forecast estimate built from the same snowfall, ice, temperature and timing data divisions watch, weighted for Virginia's terrain and fleet scale. What it cannot know is your division's position in the make-up formula, how many remote days it has left, or the state of one specific mountain road. Treat a high score as a strong planning signal — backup childcare, laptops charged — and the division's announcement as the final word.