September 4, 2024 First day of school Cathedral High School 74 Union Park Street, Boston, MA, United States
September 13, 2024 Final day for course enrollment Cathedral High School 74 Union Park Street, Boston, MA, United States
September 17, 2024 Family Orientation and Curriculum Night Cathedral High School 74 Union Park Street, Boston, MA, United States
October 16, 2024 PSAT/SAT Grade 10-12 Cathedral High School 74 Union Park Street, Boston, MA, United States
