Schools
District 155 High School Calendar 2017-18: First Day Of School, Vacations, Conferences
When's the first day of school in District 155? That, and other must-know dates for parents, students and teachers.

The first day of school in District 155 High School is August 16. Feel free to mark it on your calendar as one of the most dreaded days of the year for students and teachers — and feel free not to feel guilty about marking it as one of your favorites. Community High School District 155 has released its 2017-2018 calendar for public schools.
The calendar includes important dates such as winter and spring vacations, religious holidays, federal holidays, early dismissals and parent-teacher conferences.
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Here is the full list of dates to know for this school year:
August
Find out what's happening in Crystal Lake-Caryfor free with the latest updates from Patch.
- 8/14 - 8/15: Institute Days
- 8/16: First Day of School
September
- 9/4: No School (Labor Day)
October
- 10/9: No School (Columbus Day)
- 10/11: Early Release (NMSQT/PSAT Testing / Parents’ Night / Open House)
November
- 11/22 - 11/24: No School (Thanksgiving Holiday)
December
- 12/21: End of First Semester
- 12/22: No School for Students (Institute Day)
- 12/25 - 1/5: No School (Winter Break)
January
- 1/1 - 1/5: No School (Winter Break)
- 1/8: Start of Second Semester
- 1/12: No School for Students (Institute Day)
- 1/15: No School (Martin Luther King Day)
February
- 2/19: No School (Presidents Day)
March
- 3/23: Early Release (School Improvement Day)
- 3/26 - 3/30: No School (Spring Break)
April
- 4/2: Classes Resume
- 4/27: Early Release (School Improvement Day)
May
- 5/19: Graduation (All Schools 10:00 a.m.)
- 5/22: Last Day of Exams
- 5/30: Last Day of School if all Emergency Days are used
Ready for the new school year? Check out Patch's Ultimate Back-to-School Guide for everything from backpacks to notebooks to be sure everyone has what they need.

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