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School Open
Dismissal: 3:30 PM
Next 7 Days
3 days offMarch 2026
Coming Up
1 this weekSchool Breaks
Holidays (No School)
The Rotterdam-Mohonasen Central School District #15 school calendar for the 2025-26 school year runs from Thursday, September 4, 2025 to Thursday, June 25, 2026 in New York.
- •5 scheduled breaks and 8 holidays throughout the year
- •Spring break: Apr 3 – Apr 10
- •Winter break: Dec 22 – Jan 2
Rotterdam-Mohonasen Central School District #15 starts school 16 days later than most New York districts. Winter break starts 56 days earlier than the most common New York schedule. Spring break aligns with the most common New York schedule.
Download the iCal file above to sync all Rotterdam-Mohonasen Central School District #15 dates with your phone or computer.
Frequently Asked Questions
Is Rotterdam-Mohonasen Central School District #15 school open today?
Yes, Rotterdam-Mohonasen Central School District #15 is open today. Check the weekly calendar above for upcoming school days and closures.
When is the next day off for Rotterdam-Mohonasen Central School District #15?
The next day off is Good Friday / Easter / Spring Break, starting Friday, April 3, 2026.
When is the first day of school for Rotterdam-Mohonasen Central School District #15?
The first day of school for Rotterdam-Mohonasen Central School District #15 in 2025-26 is Thursday, September 4, 2025.
When is the last day of school for Rotterdam-Mohonasen Central School District #15?
The last day of school for Rotterdam-Mohonasen Central School District #15 in 2025-26 is Thursday, June 25, 2026.
When is spring break for Rotterdam-Mohonasen Central School District #15?
Spring break for Rotterdam-Mohonasen Central School District #15 is Friday, April 3, 2026 to Friday, April 10, 2026.
When is winter break for Rotterdam-Mohonasen Central School District #15?
Winter break for Rotterdam-Mohonasen Central School District #15 is Monday, December 22, 2025 to Friday, January 2, 2026.
When do students go back to school after winter break?
Students in Rotterdam-Mohonasen Central School District #15 return to school after winter break on Monday, January 5, 2026. Winter break ends on Friday, January 2, 2026.
When is Thanksgiving break for Rotterdam-Mohonasen Central School District #15?
Thanksgiving break for Rotterdam-Mohonasen Central School District #15 is Wednesday, November 26, 2025 to Friday, November 28, 2025.
How do I add Rotterdam-Mohonasen Central School District #15 calendar to my phone?
Click the "Add to Calendar" button at the top of this page to download the iCal (.ics) file. Then:
iPhone/iPad: Tap the downloaded file, then tap "Add All" to add events to your Calendar app.
Android: Open the file with Google Calendar, review the events, and tap "Import".
Google Calendar (web): Go to Settings → Import & Export → Select the .ics file → Import.
Outlook: Double-click the file or drag it into your Outlook calendar.
Apple Calendar (Mac): Double-click the file or go to File → Import → select the .ics file.
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Last updated: December 19, 2025
Source: Rotterdam-Mohonasen Central School District #15 Official Calendar