April 17, 2025 Holy Thursday – All School Mass Cathedral High School 74 Union Park Street, Boston, MA, United States
May 3, 2025 @ 8:30 am - 12:00 pm Golden Diploma Cathedral High School 74 Union Park Street, Boston, MA, United States
May 5, 2025 - May 9, 2025 Teacher Appreciation Week Cathedral High School 74 Union Park Street, Boston, MA, United States
May 5, 2025 - May 16, 2025 AP Testing Cathedral High School 74 Union Park Street, Boston, MA, United States
May 16, 2025 Last day of classes for seniors Cathedral High School 74 Union Park Street, Boston, MA, United States
May 19, 2025 - May 23, 2025 Senior Week Cathedral High School 74 Union Park Street, Boston, MA, United States
