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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

Student's hand writing on notebook

Final Exam Schedule

Final Exams will be from December 20th - 22nd. Review the Final Exam Schedule.
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WeTip

Be the Solution. If you have information regarding crime or misconduct at your school, call WeTip anonymously.

Upcoming Events

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

Mr. Cho
Dear Montclair High School Cavaliers,

I hope you had a restful Thanksgiving break. We are quickly approaching the end of the first semester, and so we encourage all students to continue to work hard to finish strong. We have sent out our last progress grades via ParentSquare. You can also view them on our Aeries Parent Portal. Please be sure to review the information and utilize Canvas to communicate with our teachers and counselors.

Students, please take advantage of our MAST Tutoring program offered before and after school, our online PAPER tutoring service available 24/7, and our CAP Saturday School (December 3 and 10). Every grade in every class matters!

Below is the First Semester Finals Schedule. There no finals for 6th period CAV Academy:
 
 
Tues., Dec 20 Wed., Dec 21 Thurs., Dec 22
Period 0
7:20-8:23
Period 0
7:20-8:23
 
Period 1
8:30-10:30
Period 2
8:30-10:30
Period 3
8:30-10:30
Break
10:30-10:43
Break
10:30-10:43
Break
10:30-10:43
Period 5
10:50-12:50
Period 7
10:50-12:50
Period 4
10:50-12:50
Lunch (Optional)
12:50-1:10
Lunch (Optional)
12:50-1:10
Lunch (Optional)
12:50-1:20
 
Finally, I want to wish you a wonderful Holiday season. Please enjoy the break, and we look forward to seeing your return on Monday, January 9, 2023. Go, Cavs!
 
Joshua Cho
Principal, Montclair High School