Schedule Pick-up/Spirit Days

View the 2021/2022 schedule pick-up dates and times.

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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

  • 69% of Montclair High School graduates meet the University of California and California State University A-G admissions requirements, making it a leader in San Bernardino County.
  • 88% of freshmen at Montclair 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.
  • 1000 Advanced Placement exams are administered to students at Montclair High School annually.

Principal's Message

Principal's Message Image
Dear Students and Parents/ Guardians,
Welcome to the 2021-2022 school year! We are excited to have our students return this August and we cannot wait to bring the energy back to Montclair High School in all three “A”s - Academics, Activities, and Athletics. We have learned from the challenges of distance learning and we look forward to moving ahead with refined practices as well as providing new opportunities for our students. Cavs, our theme this year will be #MontclairUnited. This represents the commitment to bring students, staff, and families together in a collective effort to rise successfully out of the difficult Covid-19 pandemic year.
Montclair High School will work diligently to keep our students and staff safe. We will be working closely with local, state and federal guidelines to continue to follow safety protocols. Our classrooms, restrooms, and common areas will be frequently cleaned using approved products that meet the San Bernardino County Department of Public Health standards. We invite all students to return to in-person instruction, but for unique circumstances, we can discuss alternatives for students. Please contact the school at (909) 621-6781 for more information.
We look forward to seeing our students at summer registration (Spirit Days). They will be able to turn in information forms, take ID pictures, attend to library/ student store matters, and pick up tentative schedules. Our incoming 9th graders have an additional orientation session that our Link Crew program  will be leading out. Freshmen are highly encouraged to attend this event. Please see the schedule below:
MHS Spirit Days Grade(s) Time
Tuesday, July 20 Seniors (12) 8am-11am and 1pm-3pm
Wednesday, July 21 Juniors (11) 8am-11am and 1pm-3pm
Thursday, July 22 Sophomores (10) 8am-11am and 1pm-3pm
Friday, July 23 Freshmen (9) 8am-11am and 1pm-3pm
Counselors Available for Scheduling Needs Grades Time
Friday, July 30 Seniors (12), Juniors(11), Sophomores (10) 8am-11am and 1pm-3pm
Freshmen Orientation Grade Time
Monday, August 2 9th Grade - Last names A - L 8am - 12pm
  Freshmen Counselors Available 1pm - 3pm
Tuesday, August 3 9th Grade - Last names M - Z 8am - 12pm
  Freshmen Counselors Available 1pm - 3pm
Classes will begin on Monday, August 9. Beginning this fall, our bell schedule will shift to  8:30 a.m. - 3:20 p.m. 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 California high schools in 2022. Please be sure to review the bell schedule found on our school website.
I am incredibly excited to begin my first year serving as your principal. I look forward to working with all of you to make the 2021-2022 school year a success!
Go, Cavs!
Joshua Cho
Principal, Montclair High School