High School Calendar 2010 - 2011
| Tuesday-Wednesday | August 24-25, 2010 | New Teacher Orientation Days |
| Tuesday | September 7 | Organizational Day for Teachers |
| Wednesday | September 8 | Opening of School First Quarter begins |
| TBA | Secondary Teacher In-Service Day | |
| Wednesday | October 13 | PSAT – Grades 9-11 |
| Friday | November 12 | First Quarter ends |
| Monday | November 15 | Second Quarter begins |
| Thursday | November 18 | Universal Visitation Day to Archdiocesan Secondary Schools |
| Wednesday | November 24 | Thanksgiving Holiday begins at close of school day |
| Monday | November 29 | Classes resume |
| Wednesday | December 8 | Immaculate Conception – Holy Day of Obligation |
| Thursday | December 23 | Christmas Holiday begins at close of school day |
| Monday | January 3 | Classes resume |
| Monday | January 17 | Martin Luther King, Jr. Day – School Holiday |
| Monday | January 24 | March for Life Day, Washington, DC |
| Tuesday-Thursday | January 25, 26, 27 | Semester Assessments |
| Friday | January 28 | Second Quarter and First Semester end |
| Monday | January 31 | Third Quarter/Second Semester begins |
| Sunday-Saturday | January 30-February 5 | Catholic Schools Week |
| Wednesday-Thursday | March 23, 24 | TerraNova Grades 9-10 (optional for 11th) |
| Friday | April 1 | Third Quarter ends |
| Monday | April 4 | Fourth Quarter begins |
| Wednesday | April 20 | Easter Holiday begins at the close of school day |
| Tuesday | April 26 | Classes resume |
| Tuesday | May 17 | Academic Honors Convocation and Mass |
| Monday | May 30 | Memorial Day – School Holiday |
| Thursday | June 2 | Solemnity of the Ascension of the Lord – Holy Day of Obligation |
| Friday | June 3 | Fourth Quarter ends – Grade 12 |
| Wednesday-Friday | June 8, 9, 10 | Semester Assessments |
| Friday | June 17 | Fourth Quarter and Second Semester end |
In addition to Holy Days, Thanksgiving, Christmas and Easter breaks, Martin Luther King, Jr., Day, and Memorial Day, which are designated on the calendar as official holidays, the secondary schools may designate one retreat day, three professional education days, and two optional holidays. The Office of Catholic Education will designate one additional professional in-service day for teachers in the Secondary School System.
