South Jefferson Central School District Snow Day Predictor
The odds of a closing or a delay on the next three school mornings in South Jefferson, measured against South Jefferson's own big snow morning of 8.8 inches.
Will South Jefferson close tomorrow?
South Jefferson’s snow record
More 4 inch school mornings than 97% of the 676 New York districts with a station record.
- Biggest day 27 in on November 19, 2022
- Snowiest winter 2018 to 2019, 171.2 in
- 6 in mornings 4.2 a winter
- 1 in mornings 20 a winter
Measured at a NOAA weather station 10.4 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 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
Districts near South Jefferson
| District | Snow a winter | 4 in mornings |
|---|---|---|
| Watertown City School DistrictWatertown | 123.9 in | 7.5 |
| General Brown Central School DistrictDexter | 123.9 in | 7.5 |
| Carthage Central School DistrictCarthage | 121.3 in | 6 |
| Indian River Central School DistrictPhiladelphia | 97.5 in | 6.4 |
| Lowville Academy and Central School DistrictLowville | 127.4 in | 7.7 |
| Altmar-Parish-Williamstown Central School DistrictParish | 132.9 in | 10.8 |
4 schools
Every school in South Jefferson follows the district’s call: one closing covers them all.
High
- South Jefferson High School, Adams
Middle
- Clarke Middle School, Adams
Elementary
- Maynard P Wilson Elementary School
- Mannsville Manor Elementary School, Mannsville
South Jefferson snow day questions
More for New York snow days

The odds are a forecast read, and the superintendent makes the call: the district’s own announcement is the one to follow.