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Denison ISD Calendar 2026-2027

Grayson County · Richardson area (Region 10)

  • First day of schoolAugust 13, 2026
  • Labor DaySeptember 7, 2026
  • Thanksgiving breakNovember 23–27, 2026
  • Winter breakDecember 21, 2026 – January 1, 2027
  • MLK Jr. DayJanuary 18, 2027
  • Spring breakMarch 15–19, 2027
  • Memorial DayMay 31, 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: Denison Independent School District (denisonisd.net) ↗
    First day: Thursday, August 13, 2026

    Calendar Dates

    • New Employee Institute (No Students)Jul 27 — Jul 31Event
    • Professional Learning Day (No Students)Aug 4 — Aug 11Event
    • Faculty & Staff Work Day (No Students)Aug 12, 2026Teacher Day
    • First Day of SchoolAug 13, 2026School Opens
    • Labor Day HolidaySep 7, 2026No School
    • Early Release Parent/Teacher ConferencesSep 21, 2026Teacher Day
    • No School (Staff & Students)Oct 9, 2026No School
    • Columbus Day - No School (Staff & Students)Oct 12, 2026No School
    • Thanksgiving Break (No School)Nov 23 — Nov 27No School
    • Faculty & Staff Work Day (No Students)Nov 30, 2026Teacher Day
    • Early ReleaseDec 18, 2026Early Release
    • Christmas BreakDec 21 — Dec 31No School
    • Christmas BreakJan 1, 2027No School
    • Faculty & Staff Work Day (No Students)Jan 4, 2027Teacher Day
    • Martin Luther King Jr. Day - No School (Staff & Students)Jan 18, 2027No School
    • Bad Weather DayFeb 12, 2027Event
    • No School (Staff & Students)Feb 15, 2027No School
    • Early Release Parent/Teacher ConferencesMar 1, 2027Teacher Day
    • Spring BreakMar 15 — Mar 19No School
    • Faculty & Staff Work Day (No Students)Mar 22, 2027Teacher Day
    • Bad Weather DayMar 26, 2027Event
    • Early ReleaseApr 7, 2027Early Release
    • Early ReleaseMay 20, 2027Early Release
    • Faculty & Staff Work Day (No Students)May 21, 2027Teacher Day
    • Memorial DayMay 31, 2027No School

    Frequently asked questions

    When is the first day of school for Denison ISD in 2026-2027?

    The first day of school for Denison ISD is Thursday, August 13, 2026.

    When is Thanksgiving break for Denison ISD?

    Denison ISD has Thanksgiving break from November 23 through 27, 2026.

    When is winter break for Denison ISD?

    Denison ISD's winter break runs from December 21 through January 1.

    When is spring break for Denison ISD in 2026-2027?

    Denison ISD's spring break is March 15 through 19, 2027.

    Does Denison ISD have school on Martin Luther King Jr. Day?

    No. Denison ISD is closed for Martin Luther King Jr. Day on Monday, January 18, 2027.

    Does Denison ISD have school on Labor Day?

    No. Denison ISD is closed for Labor Day on Monday, September 7, 2026.

    Does Denison ISD have school on Memorial Day?

    No. Denison ISD is closed for Memorial Day on Monday, May 31, 2027.

    When is the last day of school in Denison Independent School District for 2026-2027?

    Based on the 2026-2027 academic calendar, the last day of school is May 20, 2027, which is also an Early Release Day.

    When are Parent/Teacher Conferences in Denison Independent School District for 2026-2027?

    Early Release Parent/Teacher Conferences are scheduled for September 21, 2026 and March 1, 2027.

    Are there any Early Release Days during the 2026-2027 school year?

    Yes. Early Release Days are scheduled on December 18, 2026, April 7, 2027, and May 20, 2027.

    Are there any Bad Weather Days built into the Denison Independent School District Calendar 2026-2027?

    Yes. The district has designated February 12, 2027 and March 26, 2027 as Bad Weather Days.

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