| January 4 | Classes Resume | |
| January 18 | Dr. Martin Luther King, Jr. Day, School holiday | |
| January 19 | Student Holiday, Professional Development Day | |
| January 27 | Upper School Student-Led Conference Day | |
| February 15 | Presidents’ Day, School Holiday | |
| March 5 | Early Dismissal for Spring Break: LS - 11:30 a.m.; Grades 5-12 - noon, no EL aftercare | |
| March 6-14 | Spring Break | |
| March 15 | Student Holiday, Professional Development | |
| March 16 | Classes Resume | |
| March 26 | Good Friday Early Dismissal: LS - 11:30 a.m.; Grades 5-12 - noon, no EL aftercare | |
| March 29 | Easter Monday, School Holiday | |
| April 16 | Lower/Middle School Conference Day; Extended Day Open | |
| April 23 | St. Catherine's Lower School Grandparents and Special Friends Day | |
| April 23-24 | Daisy Days | |
| May 27 | Last Day of Classes - Upper School | |
| May 28 | Student Holiday, St. Christopher’s Class of 2027 Commencement | |
| May 28 | Class of 2027 Baccalaureate | |
| May 29 | St. Catherine’s Class of 2027 Commencement | |
| May 31 | Memorial Day, School Holiday | |
| June 1 | Last Day of School (EL - Grade 1) | |
| June 1 - 3 | Upper School Make-Up Exams and Elective Programming | |
| June 2 | Lower School Final Assembly for Grades 2-4, Dismissal following Final Assembly | |
| June 2 | Last Day of School (Grades 5-7) | |
| June 3 | Middle School Final Assembly for Grade 8 |