For the 2025–2026 school year, the district serves 6,500 students across 9 schools in Pennsylvania. The 2025–2026 academic year includes 180 instructional days. All dates listed below are sourced from the district's official publications. Verify with Centennial School District before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Centennial School District. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Centennial School District's 2025–2026 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
About the District
School Information
Details and contact information for Centennial School District CSD.
Sources and Checks
Where these dates come from
How the 2025–2026 Centennial School District calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Centennial School District published for 2025–2026, shown as images on this page.
- ✓Official website. Cross-checked against centennialsd.org.
- ✓Board-approved version is used where the district marks one.
- ✓First and last day match the published calendar.
- ✓Breaks and holidays are listed with their full date ranges.
- ✓Teacher / no-school days are included where the district lists them.
- ✓Changes happen. Districts amend calendars mid-year — confirm with Centennial School District before booking around a date.
Common Questions
Frequently Asked Questions
Centennial School District Calendar 2025–2026 — important dates and answers.
The first full day of school for students in Grades 1-12 in Centennial School District is August 27, 2025. Kindergarten students attend orientation and staggered half-day sessions on August 27-28, 2025.
Spring Break in Centennial School District is scheduled from April 2 through April 6, 2026. Classes resume on April 7, 2026.
Christmas Break begins on December 24, 2025, and continues through January 2, 2026. Students return after the Winter Recess period.
Winter Break (Winter Recess) runs from December 24, 2025, through January 2, 2026.
Thanksgiving Break is scheduled for November 27-28, 2025, when all schools and offices are closed.
The last day of school for Grades K-11 in Centennial School District is June 9, 2026. It is also an early dismissal day.
Schools and offices are closed for Labor Day on September 1, 2025.
All schools and offices are closed on September 23, 2025, in observance of Rosh Hashanah.
All schools and offices are closed on October 2, 2025, for Yom Kippur.
Schools and offices are closed on January 19, 2026, in observance of Martin Luther King Jr. Day.
All schools and offices are closed on February 16, 2026, for Presidents Day.
All schools and offices are closed on May 25, 2026, in observance of Memorial Day.
William Tennent High School Graduation is scheduled for June 3, 2026, with a rain date of June 4, 2026.
Yes. Several professional learning and in-service days occur throughout the school year, including November 4, 2025, May 19, 2026, and June 10, 2026, along with other scheduled staff development activities.
Schools reopen on April 7, 2026, following Spring Break.
Explore More
Recently Updated Calendars
Other Pennsylvania school district calendars — recently added or updated.