Clarkstown Central School District Snow Day Predictor

By the district website, the district app, social media, radio, local TV, phone call and email, and on the district’s own closings page.

3 for the 2026 to 2027 school year, listed on the calendar as “adverse weather days”.

June 25, 2027, on the district’s 2026 to 2027 calendar.

About 27.6 inches a winter at a NOAA weather station 15.4 miles away, averaged over 8 winters. Between December 1 and March 31 that brings 2.6 weekday mornings a year with 2 inches of new snow or more, and 1.6 with 4 inches or more.

15.7 inches on February 23, 2026, the largest single day at a NOAA weather station 15.4 miles away in 8 winters. The snowiest winter was 2025 to 2026, with 60.4 inches.

It reads the National Weather Service forecast for New City 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 Clarkstown’s own big snow morning: 5.3 inches, the top tenth of snowy weekday mornings at a NOAA weather station 15.4 miles away.

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.