Chelmsford Public Schools School Calendar 2026-2027

At a Glance

CPS is a suburban school district with 8 schools. The first day of school is September 1. Chelmsford High School, founded in 1917, organizes its student body into three houses named after celebrated New England writers: Ralph Waldo Emerson, Nathaniel Hawthorne, and John Greenleaf Whittier. The calendar also notes several religious observances (Rosh Hashanah, Yom Kippur, Sukkot, Diwali, Chanukah, Christmas, Kwanzaa, Chinese New Year, Ramadan, Eid al-Fitr, Good Friday, Easter, Passover, Orthodox Easter, Eid al-Adha, Shavuot) for awareness — school stays in session on these days. This calendar includes 2 professional development days, 10 early-release or half days — useful to know when planning childcare.

Source: Chelmsford Public Schools

Also known as CPS.

Schools in Chelmsford Public Schools

Byam School (Elementary)
Charles D Harrington (Elementary)
Chelmsford High (High)
Col Moses Parker School (Middle)
McCarthy Middle School (Middle)
South Row (Elementary)
Center Elementary School (Elementary)
Community Education Center (Prekindergarten)

Chelmsford Public Schools 2026-2027 School Calendar

All schools

2026-08-26 to 2026-08-27 — New Staff Orientation (closed)
2026-08-31 — No School Staff Orientation (closed)
2026-09-01 — Grades 1 – 9 ONLY / Kindergarten Orientation (in session)
2026-09-02 — All Students (in session)
2026-09-04 — No School (closed)
2026-09-07 — No School (closed)
2026-09-23 — Half Day (Professional Day) (partial)
2026-10-12 — No School (Columbus Day) (closed)
2026-10-22 — Half Day (Professional Day) (partial)
2026-11-03 — No School (Full Prof. Day) (closed)
2026-11-11 — No School (Veteran's Day) (closed)
2026-11-25 — Early Release (Thanksgiving Recess) (partial)
2026-11-26 — No School (Thanksgiving) (closed)
2026-11-27 — No School (closed)
2026-12-10 — Half Day (Professional Day) (partial)
2026-12-24 to 2027-01-01 — December Recess (closed)
2027-01-04 — School Re-opens (in session)
2027-01-12 — Half Day (Professional Day) (partial)
2027-01-18 — No School (Martin Luther King Day) (closed)
2027-02-04 — Half-Day (Professional Day) (partial)
2027-02-15 to 2027-02-21 — February Recess (closed)
2027-02-22 — School Re-opens (in session)
2027-03-10 — Half Day (Professional Day) (partial)
2027-04-06 — Half-Day (Professional Day) (partial)
2027-04-19 to 2027-04-25 — April Recess (closed)
2027-04-26 — School Re-opens (in session)
2027-05-31 — No School (Memorial Day) (closed)
2027-06-18 — No School (Juneteenth) (closed)
2027-06-24 — Last Day for Students (Half Day) (partial)
2027-06-25 — Last Day for Staff (Half Day) (closed)
2026-09-11 to 2026-09-13 — Rosh Hashanah (in session)
2026-09-20 to 2026-09-21 — Yom Kippur (in session)
2026-09-25 to 2026-10-02 — Sukkot (in session)
2026-11-08 — Diwali (in session)
2026-12-04 to 2026-12-12 — Chanukah (in session)
2026-12-25 — Christmas (closed)
2026-12-26 to 2027-01-01 — Kwanzaa (closed)
2027-02-06 — Chinese New Year (in session)
2027-02-07 to 2027-03-08 — Ramadan (in session)
2027-03-09 to 2027-03-10 — Eid al-Fitr (in session)
2027-03-26 — Good Friday (in session)
2027-03-28 — Easter (in session)
2027-04-21 to 2027-04-29 — Passover (in session)
2027-05-02 — Orthodox Easter (in session)
2027-05-16 to 2027-05-17 — Eid al-Adha (in session)
2027-06-10 to 2027-06-12 — Shavuot (in session)

Elementary and Middle Schools (Byam, Center, Harrington, South Row, McCarthy Middle, Parker Middle)

2026-11-18 — Half Day ELEM. & MS ONLY (partial)