New York Snow Day Calculator: Chances & Closure Norms
What closes New York schools? Snowday's New York calculator usually flags a snow day at about 8–12 inches upstate but only 4–6 in New York City, where closures are rare — the city has closed for full snow days only a handful of times since 1978. Enter your ZIP above for tomorrow's chance.
Snow day calculator
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Result
Your forecast appears here. Enter a ZIP code or city above and press Calculate snow day chance.
Fun estimate only — always follow your school district’s official announcements.
How New York districts decide snow days
Upstate districts typically close at 8 to 12 inches depending on wind and timing, with city schools in Rochester, Syracuse, and Buffalo holding students through storms that would close most American districts — their plow fleets and bus garages are simply built for it.
New York City public schools, the largest district in the country, treat full snow-day closures as a last resort; since the Blizzard of 1978 the system has fully closed only a handful of times, including the January 2016 storm that dropped 27.5 inches in Central Park. When NYC does act, it usually announces the night before, letting families plan.
Lake effect is the upstate wildcard: a single snowband parked over Oswego County can drop 3 feet while Syracuse stays dry. Districts inside the band watch radar rather than forecasts, and closures there depend on band placement more than totals.
Average snowfall in New York
| Place | Avg. snow per year |
|---|---|
| Syracuse | ≈ 124 in/yr |
| Rochester | ≈ 100 in/yr |
| Buffalo | ≈ 95 in/yr |
| New York City | ≈ 30 in/yr |
Averages are approximate NOAA/NCEI 1991–2020 climate normals, rounded. Syracuse’s ~124 inches regularly leads all U.S. metros of its size; Tug Hill towns like Hooker have recorded seasonal totals over 300 inches.
The storm New York remembers
The November 2014 Buffalo lake-effect storm. In November 2014, a stationary lake-effect band dropped more than 5 feet of snow — up to about 65 inches — on parts of the Buffalo area in three days, collapsing roofs and triggering a driving ban. Schools south of the city closed for a full week while neighboring suburbs lost barely an inch.
Using the calculator in New York
Snowday balances New York with a 6-inch statewide baseline and full weight for lake-effect wind and commute timing. Run the snow day calculator with your own ZIP — 13202 for Syracuse, 10001 for Manhattan — and set the slider for your district. For the full picture, open the snow day calculator and see how commute-hour snowfall, cold, and wind combine into tomorrow’s percent chance — free, instant, no sign-up.
Last updated: October 2026