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Knox City-o'brien CISD Calendar 2026-2027

Knox County · Wichita Falls area (Region 9)

  • Thanksgiving breakNovember 24–28, 2026
  • Winter breakDecember 18, 2026 – January 2, 2027
  • Spring breakMarch 16–20, 2027

Last updated September 18, 2026

Interactive calendar

Browse the key dates month by month — colored markers show each event.

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    Printable Calendar PDF

    Official Calendar

    Source: KNOX CITY-O'BRIEN CISD (knoxcityschools.net) ↗

    Calendar Dates

    • Comp DayAug 1, 2025Teacher Day
    • Staff DevelopmentAug 4 — Aug 7Teacher Day
    • Comp DayAug 8, 2025Teacher Day
    • Staff DevelopmentAug 11 — Aug 12Teacher Day
    • First Day of SchoolAug 13, 2025School Opens
    • Labor Day HolidaySep 1, 2025No School
    • End of First Six WeeksSep 26, 2025Grading
    • Staff DevelopmentSep 29, 2025Teacher Day
    • Beginning of Second Six WeeksSep 30, 2025Event
    • School HolidayOct 13, 2025No School
    • End of Second Six WeeksOct 31, 2025Grading
    • Staff DevelopmentNov 3, 2025Teacher Day
    • Beginning of Third Six WeeksNov 4, 2025Event
    • Student Early DismissalNov 21, 2025Event
    • Thanksgiving BreakNov 24 — Nov 28No School
    • Student Early Dismissal and End of First SemesterDec 17, 2025Grading
    • Christmas and Winter BreakDec 18 — Jan 2No School
    • Staff DevelopmentJan 5, 2026Teacher Day
    • Martin Luther King Jr. Day HolidayJan 19, 2026No School
    • End of Fourth Six WeeksFeb 13, 2026Grading
    • Comp DayFeb 16, 2026Teacher Day
    • Beginning of Fifth Six WeeksFeb 17, 2026Event
    • Student Early DismissalMar 13, 2026Event
    • Spring BreakMar 16 — Mar 20No School
    • End of Fifth Six WeeksApr 2, 2026Grading
    • School HolidayApr 3, 2026No School
    • School HolidayApr 6, 2026No School
    • Beginning of Sixth Six WeeksApr 7, 2026Event
    • Bad Weather DayApr 24, 2026Event
    • Bad Weather DayMay 8, 2026Event
    • Student Early Dismissal, Last Day of School and End of Second SemesterMay 14, 2026School Closes
    • Staff DevelopmentMay 15, 2026Teacher Day

    Frequently asked questions

    When is Thanksgiving break for Knox City-o'brien CISD?

    Knox City-o'brien CISD has Thanksgiving break from November 24 through 28, 2026.

    When is winter break for Knox City-o'brien CISD?

    Knox City-o'brien CISD's winter break runs from December 18 through January 2.

    When is spring break for Knox City-o'brien CISD in 2026-2027?

    Knox City-o'brien CISD's spring break is March 16 through 20, 2027.

    When is the first day of school in Knox City-O'Brien CISD for 2025-2026?

    The first day of school in Knox City-O'Brien CISD is August 13, 2025.

    When is the last day of school in Knox City-O'Brien CISD for 2025-2026?

    The last day of school in Knox City-O'Brien CISD is May 14, 2026. Students will have an early dismissal that day.

    When is Labor Day in Knox City-O'Brien CISD for 2025-2026?

    Knox City-O'Brien CISD will be closed for Labor Day on September 1, 2025.

    When is the October school holiday in Knox City-O'Brien CISD for 2025-2026?

    The October school holiday in Knox City-O'Brien CISD is October 13, 2025.

    When is Martin Luther King Jr. Day in Knox City-O'Brien CISD for 2025-2026?

    Knox City-O'Brien CISD will be closed for Martin Luther King Jr. Day on January 19, 2026.

    When are the staff development days in Knox City-O'Brien CISD for 2025-2026?

    Staff development days are August 4-7, August 11-12, September 29, and November 3, 2025, as well as January 5 and May 15, 2026.

    When are the student early dismissal days in Knox City-O'Brien CISD for 2025-2026?

    Student early dismissal days are November 21 and December 17, 2025, and March 13 and May 14, 2026.

    When are the bad weather days in Knox City-O'Brien CISD for 2025-2026?

    The designated bad weather days are April 24 and May 8, 2026.

    When does the first semester end in Knox City-O'Brien CISD for 2025-2026?

    The first semester ends on December 17, 2025.

    When are the comp days in Knox City-O'Brien CISD for 2025-2026?

    The comp days are August 1 and August 8, 2025, and February 16, 2026.

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