Chaffey Joint Union High School District 2027-2028 School Calendar Holidays, breaks, and no school days

Ontario, CA

First day off
Monday
September 6
Labor Day
No-school days
25 weekdays
4 single days + 21 break days
First day
Tuesday
August 10
2027
Last day
Thursday
May 25
2028
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School year at a glance

First Day Last Day No School Break Holiday School Day

Breaks and holidays

Is there school on Veterans Day?

Thu, Nov 11
No school

When is Thanksgiving break 2027?

Nov 22–26
9 days off with weekends

When is winter break 2027?

Dec 23 – Jan 6
15 days off with weekends

Is there school on Martin Luther King Jr. Day?

Mon, Jan 17
No school

Is there school on Presidents' Day?

Mon, Feb 21
No school

When is spring break 2028?

Apr 3–7
9 days off with weekends

All 2027-2028 dates

No-school days, breaks and schedule changes, month by month.

July 2027

  • Independence Day Monday, July 5th No school

August 2027

September 2027

  • Labor Day Monday, September 6th · Federal holiday No school

October 2027

  • Columbus Day Monday, October 11th · Not on the school calendar Federal holiday

November 2027

  • Veterans Day Thursday, November 11th · Federal holiday No school
  • Thanksgiving Break Monday, November 22nd – Friday, November 26th · 5 school days off · Includes Thanksgiving Day (federal holiday), Day after Thanksgiving (state holiday) Break

December 2027

  • Winter Break Thursday, December 23rd – Thursday, January 6th · 11 school days off · Includes Christmas Day (observed) (federal holiday), New Year's Day (observed) (federal holiday) Break

January 2028

  • Martin Luther King Jr. Day Monday, January 17th · Federal holiday No school

February 2028

  • Presidents' Day Monday, February 21st · Federal holiday No school

March 2028

  • Farmworkers Day Friday, March 31st · Not on the school calendar State holiday

April 2028

  • Spring Break Monday, April 3rd – Friday, April 7th · 5 school days off Break

May 2028

  • Last Day of School Thursday, May 25th Last day
  • Memorial Day Monday, May 29th No school

June 2028

  • Juneteenth Monday, June 19th No school

Schools using this calendar

11 schools follow the Chaffey Joint Union High School District calendar.

Browse all schools (A–Z)
A
Alta Loma High
C
Chaffey Community DayChaffey District Online HighChaffey HighColony High
E
Etiwanda High
L
Los Osos High
M
Montclair High
O
Ontario High
R
Rancho Cucamonga High
V
Valley View High (Continuation)

Nearby school districts

2027-2028 calendars for districts close to Chaffey Joint Union High School District.

Claremont Unified School District Claremont, CA Spring break Mar 27–31 Chino Valley Unified School District Chino, CA Spring break Mar 27–31 Fontana Unified School District Fontana, CA Spring break Mar 20–24 Charter Oak Unified School District Covina, CA Spring break Apr 3–7 Azusa Unified School District Azusa, CA Spring break Apr 3–7 West Covina Unified School District West Covina, CA Spring break Apr 17–21

Frequently Asked Questions

When is the first and last day of school at Chaffey Joint Union High School District in 2027-2028?
The first day of school at Chaffey Joint Union High School District is Tuesday, August 10, 2027. The last day of school is Thursday, May 25, 2028. That's a school year of about 41 weeks.
How many school days are in the 2027-2028 school year at Chaffey Joint Union High School District?
About 183 school days: the weekdays from the first day to the last day, minus days off.
How many days off does Chaffey Joint Union High School District have in 2027-2028?
About 25 weekdays with no school, not counting weekends or summer. That's 21 weekdays of breaks plus four single days off. There are also three long weekends, where a Friday or Monday off joins the weekend.
What is the longest stretch of school without a day off?
Forty-seven school days in a row (about nine weeks), from Tuesday, September 7 to Wednesday, November 10.

Simple Schedule is not affiliated with Chaffey Joint Union High School District. Confirm important dates with the district or your school.

Source: Chaffey Joint Union High School District, checked .

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