Klein ISD's 2023-24 school year calendar will run from Aug. 9-May 24, following the KISD board of trustees' unanimous approval of calendar Option 2 on Nov. 14.

The following are dates of note associated with the approved calendar. To view a PDF of KISD's approved 2023-24 calendar, click here.
  • Aug. 1-8, 2023: Staff development
  • Aug. 9: First day of school
  • Sept. 4: Labor Day (student and staff holiday)
  • Oct. 6: End of first grading period
  • Oct. 9-13: Fall break (student holiday; staff development)
  • Nov. 7: Election Day (student holiday; staff development)
  • Nov. 20-24: Thanksgiving break (student and staff holiday)
  • Dec. 13-15: Early dismissal for high school students
  • Dec. 15: Last day of first semester; end of second grading period
  • Dec. 18-Jan. 1, 2024: Winter break (student and staff holiday)
  • Jan. 2: Student holiday; staff development
  • Jan. 3: First day of second semester
  • Jan. 15: Martin Luther King, Jr. Day (student and staff holiday)
  • Feb. 12-14: Mid-winter break (student holiday; staff development)
  • Feb. 15-16: Mid-winter break (student and staff holiday)
  • March 8: End of third grading period
  • March 11-15: Spring break (student and staff holiday)
  • March 29: Student and staff holiday
  • April 15: Student holiday; staff development
  • May 22-24: Early dismissal for high school students
  • May 24: Last day of school; end of fourth grading period
  • May 27: Memorial Day (staff holiday)
  • May 28-31: Staff development