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