Spirit Days - Schedule Distribution

Schedule Distribution/Freshmen Orientation July 29 - August 4

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About Us

The Chaffey Joint Union High School District serves the communities of Ontario, Montclair, Rancho Cucamonga, and portions of Fontana, Upland, Chino, and Mount Baldy. With over 25,000 students, the District is the fourth largest high school district in California. It has eight comprehensive high schools, a continuation high school, an online high school, a community day school, an adult school, and alternative programs. The District offers a wide variety of instructional options that provide a quality education for each student, every day. The District's well-prepared, dedicated, and highly qualified teachers and support personnel are second to none.
The Chaffey Joint Union High School District Board of Trustees are steadfast in the belief that "Nothing is more important than student learning and their achievement."
Our daily purpose encompasses our commitment:
"To provide student learning, and ultimately their achievement, of the prescribed curriculum that takes place in the classroom under the direction of the teacher." The Chaffey District supports this daily act. We realize that our efforts uniquely influence the future of our community and of this nation, and we are passionate about doing whatever it takes to prepare students to be successful and contributing citizens of the 21st century.
The Chaffey District has provided a quality education for high school students in the area since 1911. As the District continues to grow and progress, we are poised to meet the challenge of providing the finest quality education possible for every student. 
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All CJUHSD students will graduate ready for college and careers.

Recent News

Vaccine Event

Vaccine Event

Saturday, July 24th at Chaffey High School. 4:00-7:00PM

Upcoming Events

Vaccine Event

Time: 4 PM – 7 PM
Location: Chaffey High School

School Facts

  • 56% of Ontario High School graduates meet the University of California and California State University A-G admissions requirements, making it a leader in San Bernardino County.
  • 90% of freshmen at Ontario High School complete their first year of high school on track to graduate.
  • The CJUHSD has been named a Top Workplace by the Press-Enterprise and Inland News Group.
  • 500 Advanced Placement exams are administered to students at Ontario High School annually.

Principal's Message

Larry Rook
Dear Ontario Jaguar Families,
Welcome to the 2021-2022 school year! This will be my 2nd year as your proud principal of OHS but my first with all our students back at school. I cannot wait to welcome back all our students to in-person instruction this fall, especially our incoming 9th graders, the Class of 2025! We know that we have many students who will be coming to campus for the first time and we cannot wait for them to experience the Jaguar pride! This year our first day of school will be exciting and full of energy as we welcome all our Jaguars back to school.
Please look for your summer mailer to arrive around the middle of July. Please read all the documents enclosed, and make sure that all the forms in the registration packet are completed. Bring your completed forms to turn in during our Jaguar Spirit Days which will begin August 2, 2021.  See the schedule below for your student’s date and time. 
Spirit Days are scheduled for August 2, August 3, and August 4. Please see the schedule below for the dates and times your class is schedule to attend:
Class of '22 - Seniors Monday, August 2nd 8:00am - 11:00am
Class of '23 - Juniors Monday, August 2nd 12:00pm - 3:00pm
Class of '24 - Sophomores Tuesday, August 3rd 12:00pm - 3:00pm
Class of '25 - Freshmen
Tuesday, August 3rd 
Last Names A - M
8:00am - 11:00am
Class of '25 - Freshmen
Wednesday, August 4th
Last Names N - Z
8:00am - 12:00pm
For parents/guardians of incoming freshmen, we invite you to attend our Parent Information Meeting in our library.  This presentation will take place on the same day and time as your freshmen student(s) orientation and will focus on informing parents on how they can engage with our school and staff as well as how to help support your student(s) academic success during their high school career and beyond.  
With all the challenges we all have endured over the last year and a half, our OHS staff have been preparing our plans to meet our students needs when they return.  This means an increase in academic support, interventions, remediation and enrichment. We will be providing additional resources to support students mental health and social emotional needs as well as continued intentional efforts in the work of equity to celebrate and support our school community in our curriculum, school programs and student achievement. We will also be welcoming our students to our new Student Wellness Center, which is a new facility on our campus for emotional support.
Finally, beginning this school year, classes will begin at 8:30 a.m.-3:20 p.m. Monday-Thursday, Friday hours will be from 9:30 a.m.-3:20 p.m. This shift to a later start time is to prepare for the legally mandated late start for all California high schools in 2022.
I look forward to working with you our parents, students, and community to provide the best educational experience possible for all students. We are Stronger Together, we will overcome the challenges that lie ahead, and we are here to support you. If you need anything, please call us at (909) 988-7411.
Jaguar Pride,
Mr. Rook
Proud Principal, OHS