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East Amherst, New York, 9,731 students in 13 schools

Williamsville Central School District Snow Day Predictor

The odds of a closing or a delay on the next three school mornings in Williamsville, measured against Williamsville's own big snow morning of 4.1 inches.

The next three school mornings

Will Williamsville close tomorrow?

Reading the National Weather Service forecast for the overnight and the bus hours in East Amherst.
The Williamsville playbook

How Williamsville calls a snow day

How families hear

By email, text message, phone call and the district app.

“The Williamsville Central School System provides an emergency notification system in which parents, faculty, staff, students and community members can sign up to receive emergency notifications through e-mail, text message, robo call, mobile app push alert.”

4 built in snow days

On the 2026 to 2027 calendar, listed as “Emergency closing days”.

“Emergency closing days (4) are built into the school calendar.”
Source

Making up a lost day

Taken from spring recess first (April 2, April 1, March 31, 30, 29), then mid-winter recess (February 19 to 16).

Make up dates: Feb 16, Feb 17, Feb 18, Feb 19, Mar 29, Mar 30, Mar 31, Apr 1, Apr 2.

“Make up instructional days, if needed, will be used in the following order: April 2nd, 1st; March 31st, 30th, 29th; February 19th, 18th, 17th, 16th.”
Source

The 2026 to 2027 calendar

  • First day September 8, 2026
  • Winter break Dec 24 to Jan 1
  • February break Feb 15 to Feb 19
  • Last day June 24, 2027
District calendar

Read from Williamsville’s own pages on October 8, 2026; the district site is williamsvillek12.org.

Ten winters of school mornings

Williamsville’s snow record

92.6inches of snow a winter
9.4school mornings a winter with 2 in of new snow or more
3.6with 4 in or more
4.1 ina big snow morning in Williamsville: the top tenth of snowy school mornings
1.1school mornings a winter at 0 F or colder

More 4 inch school mornings than 76% of the 676 New York districts with a station record.

8.2Nov
25Dec
30.8Jan
16.5Feb
9.9Mar
Average snowfall by month, inches
  • Biggest day 22.3 in on December 23, 2022
  • Snowiest winter 2022 to 2023, 133.6 in
  • 6 in mornings 1.9 a winter
  • 1 in mornings 16.3 a winter

Measured at a NOAA weather station 5.1 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.

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The New York rule

How New York counts a lost day

New York requires 180 days of session plus 900 hours a year for kindergarten to grade 6 and 990 hours for grades 7 to 12. The Commissioner can excuse up to 5 days closed for extraordinary weather, but only if the district cannot make them up by using all its scheduled vacation days before the June Regents exams.

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

Next door

Districts near Williamsville

DistrictSnow a winter4 in mornings
Sweet Home Central School DistrictAmherst75.2 in2.6
Amherst Central School DistrictAmherst69 in2.6
Cheektowaga-Maryvale Union Free School DistrictCheektowaga92.6 in3.6
Cleveland Hill Union Free School DistrictCheektowaga69 in2.6
Clarence Central School DistrictClarence71.2 in3
Kenmore-Tonawanda Union Free School DistrictBuffalo72.6 in2.6
The schools

13 schools

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

High

  • Williamsville North High School, Williamsville
  • Williamsville East High School
  • Williamsville South High School, Williamsville

Middle

  • Transit Middle School
  • Mill Middle School, Williamsville
  • Casey Middle School
  • Heim Middle School, Williamsville

Elementary

  • Maple West Elementary School, Williamsville
  • Heim Elementary School, Williamsville
  • Maple East Elementary School, Williamsville
  • Dodge Elementary School
  • Country Parkway Elementary School, Williamsville
  • Forest Elementary School, Williamsville
Questions

Williamsville snow day questions

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More winter

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