Sachem Central School District Snow Day Predictor

Q: How many snow days does Sachem have built in?

1 for the 2026 to 2027 school year, listed on the calendar as “snow day”.

Q: Does Sachem switch to remote learning on a snow day?

It can. Sachem has remote learning days in its winter plan. When a closing gets likely, the morning here reads "Snow day or remote day".

Q: When is the last day of school for Sachem?

June 24, 2027, on the district’s 2026 to 2027 calendar.

Q: How much snow does Lake Ronkonkoma get?

About 28.5 inches a winter at a NOAA weather station 2.8 miles away, averaged over 10 winters. Between December 1 and March 31 that brings 1.8 weekday mornings a year with 2 inches of new snow or more, and 1.3 with 4 inches or more.

Q: What was the biggest snow day near Sachem?

23.5 inches on January 29, 2022, the largest single day at a NOAA weather station 2.8 miles away in 10 winters. The snowiest winter was 2017 to 2018, with 65.9 inches.

Q: How does the Sachem snow day predictor work?

It reads the National Weather Service forecast for Lake Ronkonkoma 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 Sachem’s own big snow morning: 6.1 inches, the top tenth of snowy weekday mornings at a NOAA weather station 2.8 miles away.

The next three school mornings

Will Sachem close tomorrow?

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

The Sachem playbook

How Sachem calls a snow day

1 built in snow day

On the 2026 to 2027 calendar, listed as “snow day”.

“No snow days have off 5/27. 1 snow day—give back 5/27. 2 or more snow days are remote instruction days.”

Source

Remote learning days

Sachem has remote learning days in its winter plan.

“No snow days have off 5/27. 1 snow day—give back 5/27. 2 or more snow days are remote instruction days.”

Source

Making up a lost day

The one snow day is given back on May 27; with no snow days used, May 27 is off.

“No snow days have off 5/27. 1 snow day—give back 5/27. 2 or more snow days are remote instruction days.”

Source

The 2026 to 2027 calendar

First day September 2, 2026
Winter break Dec 23 to Jan 1
February break Feb 15 to Feb 19
Last day June 24, 2027

District calendar

Read from Sachem’s own pages on October 8, 2026; the district site is sachem.edu.

Ten winters of school mornings

Sachem’s snow record

28.5inches of snow a winter

1.8school mornings a winter with 2 in of new snow or more

1.3with 4 in or more

6.1 ina big snow morning in Sachem: the top tenth of snowy school mornings

0school mornings a winter at 0 F or colder

0.4Nov

3.6Dec

9.3Jan

10Feb

4.7Mar

Average snowfall by month, inches

Biggest day 23.5 in on January 29, 2022
Snowiest winter 2017 to 2018, 65.9 in
6 in mornings 0.8 a winter
1 in mornings 3.5 a winter

Measured at a NOAA weather station 2.8 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 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 Sachem

District	Snow a winter	4 in mornings	Built in days
Middle Country Central School DistrictCentereach	26.8 in	1.6
Hauppauge Union Free School DistrictHauppauge	28.5 in	1.3
Connetquot Central School DistrictBohemia	28.5 in	1.3
Smithtown Central School DistrictSmithtown	28.5 in	1.3	3
Brookhaven-Comsewogue Union Free School DistrictPort Jefferson Station	26.8 in	1.6
Central Islip Union Free School DistrictCentral Islip	28.5 in	1.3

The schools

15 schools

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

High

Sachem High School East, Farmingville
Sachem High School North

Middle

Seneca Middle School, Holbrook
Sagamore Middle School, Holtsville
Samoset Middle School

Elementary

Hiawatha School
Lynwood Avenue School, Farmingville
Chippewa Elementary School, Holtsville
Cayuga School, Lake Grove
Wenonah School, Lake Grove
Waverly Avenue School, Holtsville
Nokomis School, Holbrook
Grundy Avenue School, Holbrook
Tamarac Elementary School, Holbrook
Merrimac School, Holbrook

Questions

Sachem snow day questions

How many snow days does Sachem have built in?

Does Sachem switch to remote learning on a snow day?

When is the last day of school for Sachem?

How much snow does Lake Ronkonkoma get?

What was the biggest snow day near Sachem?

How does the Sachem snow day predictor work?

How does New York handle snow days?

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.