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Who is this month's student of the month?

Today: 3/30/17
All Day: End of 3rd Quarter
8:00 AM Prom Tickets On Sale
12:35 PM Spring Spirit Week Activity- Throwback Thursday
4:00 PM Movie Night



Monday, March 27 - Misty Monday/Dress up in apparel for the rain: raincoats, rain boots, etc.

Tuesday, March 28 - Floral Tuesday/Wear clothes that have a floral or tie-dye design

Wednesday, March 29 - Roast-Me-Wednesday/Dress in funny clothing that your friends would roast you in/Lunchtime Activity - Musical Chairs in the quad

Thursday, March 30 - Throwback Thursdays/Dress up like you did when you were younger/Lunchtime Activity - Water Balloon Toss in the quad



make sure to attend the MANDATORY meeting on Wednesday, March 29 in M2.


Class meeting will be on Wednesday, March 29 in M2



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Liane, Cismowski (925) 682-4030 ex.3400 Principal

Welcome to Mt. Diablo High School!

Greetings, Mt. Diablo High School students, families, friends, and community!


Welcome!  We are so glad you are here!  Everyone on our staff is dedicated to providing an exciting, challenging, and rewarding learning environment for all of our students.  We are continually refining our instructional programs to ensure all of our students are prepared for college, career, and civic responsibility.


There are many ways to participate as parent leaders and volunteers at MDHS.  Watch the website for information regarding WASC meetings, ELAC meetings, Sports Boosters, Mount’s Angels (our parent/teacher/student group), and other general volunteering, for example, Teacher Appreciation Days, and Open House.  


We will be sending bulletins home with student progress reports.  You will also receive regular automated phone calls to inform you of school news, activities, and events.


You are always welcome to contact me with any questions or concerns.  Whoever you are and whatever your interests or talents, we have a place for you. I hope that you will make time this year to come be a part of the family at Mount Diablo High School!  


I am confident we can work together to make 2016 – 2017 our best year yet!

Liane Cismowski, Principal


Mrs. Liane Cismowski

  • School-wide support
  • English Department
  • English Learners

First Semester Bulletin

First Quarter Bulletin

Click below for important information about Mt. Diablo High School:

First Quarter Bulletin.pdf

Primer Trimestre del Año .pdf