School Calendar 2021-22

Updated August 9, 2021

2021-22 MHS Calendar

The calendar is still subject to change, but you may download it here.

  • August 24-26: New Employee Orientation
  • August 26: Dorms open — Students Traveling Internationally
  • August 31 - September 1: Staffulty Meetings
  • September 1: Proctors Arrive
  • September 2-3: Proctor Training
  • September 3: Returning Students Arrive — Boarding & Day
  • September 4: New Students Arrive — Boarding & Day
  • September 4-7: Student Orientation/Programs
  • September 9: First day of Classes
  • September 9: Start of Fall Athletic Season
  • September 17: Book of the School Signing
  • September 24-25: Board of Trustee Weekend
  • September 24: Ring Ceremony
  • October 2: Admissions Open House
  • October 15-18: Fall Family Weekend/Long Weekend
  • October 16: Convocation (9:00 a.m., hybrid)
  • October 19: Classes Resume
  • November 15: Start of Winter Athletic Season
  • November 17: Fall Harvest Luncheon
  • November 20–28: Fall Break — No Classes
  • November 29: Classes Resume
  • December 3-4: Board of Trustee Weekend
  • December 14: ISA Banquet and Performance
  • December 18 - January 4: Winter Break — No Classes
  • January 2-3: Student Travel Days
  • January 3-4: Staffulty Professional Days
  • January 5: Classes Resume
  • January 6: Martin Luther King Jr. Day — All-School Programming
  • January 17: Martin Luther King Jr. Day
  • January 31: First Day of Second Semester
  • February 4: Book of the School Signing
  • February 11-14: Winter Long Weekend — No Classes
  • February 15: Classes Resume
  • February 25-26: Board of Trustees Weekend
  • March 7: Start of the Spring Athletic Season
  • March 12-28: Spring Break — No Classes
  • March 27-28: Student Travel Days
  • March 28: Staffulty Professional Day
  • March 29: Classes Resume
  • April 4: Accepted Students Day
  • April 20: Founder's Day (Observed) and JEDII Teach-In
  • April 22: ISA Culture Fair
  • May 12-13: Board of Trustees Weekend
  • May 13-15: Reunion Weekend
  • May 31: Alumnae Induction/Sending Forth Dinner
  • June 1: Last Day of Classes for Seniors
  • June 3: Last Day of Classes for Undergrads
  • June 4: Senior Awards
  • June 5: Commencement
  • June 6: Dorms close at 12:00 p.m.; Summer Vacation begins
  • June 6-7: Staffulty Meetings