Class of 2025
Congratulations to the Class of 2025!
Timeline, links, and other senior class information for the Timberline High School Class of 2025.
Diploma Pickup
Monday, June 16, from 9:00 am–2:30 pm
Senior Timeline
Updated 4/29/2025
September
- September 13: School Pictures-Aux gym, 7:00 am–1:30 pm
- September 18: ER (no clubs) / Homecoming Heroes Voting
- September 30: Homecoming ticket sales open
October
- October 4: No School, Teacher Professional Development
- October 5: SAT
- October 7–11: Fall Spirit Week
- October 9: First Club Meeting — ER
- October 10: Homecoming ticket sales close
- October 11: Homecoming Assembly (50 minutes after 2nd) / Homecoming Game vs. NTHS (Pink Out)
- October 12 from 7:00–10:00 pm: Homecoming Dance, THS commons
- October 25: Photo Retakes (in the commons)
- October 28–November 1: Fall Parent-Teacher Conferences (half day release)
November
- November 2: SAT
- November 4: Bowling Starts
- November 8: Veterans Day Assembly/ end of qt. 1
- November 11: No School, Veterans Day
- November 15: Fall Play Opens
- November 18: Winter Sports begin
- November 27–29: No School Thanksgiving Break
December
- December 7: SAT
- December 11, 12:45–2:00 pm: Winter Warmth Blanket Making workshop
- December 20: Winter Pep Assembly
- December 23–January 3: No School: Winter Break
January
- January 6: School returns
- January 10: No School, Teacher Professional Development
- January 17: Martin Luther King Jr. Assembly
- January 20: No School, Martin Luther King Jr. Day
- January 29: Semester finals periods 2/4/6
- January 30: Semester Finals 1/3/5
- January 31: Half-day dismissal, End of semester 1
February
- February 3: Semester 2 Begins
- February 7: 7:00–10:00 pm: Cupid’s Court Dance, THS Commons
- February 10–14: Week of Love
- February 17: No School, President’s Day
- February 20–21: Blood Drive, auxiliary gym
- February 21: Musical Opens: We Will Rock You
- February 24: Senior Class meeting during Advisory
March
- March 3: Spring sports begin
- March 7: No School, Teacher Professional Development
- March 14: Community Service Hours are due to Ms. Flaherty
- March 21: Spring Pep Assembly
- March 25 & 26: Student Led Conference (must have volunteer hours and High School & Beyond Plan complete)
- March 31: No School, Spring Break
April
- April 1–4: No School, Spring Break
- April 9: Prom Court Voting
- April 11: End of 3rd Quarter
- April 21: Prom Ticket sales open, all fines must be cleared prior
- April 23, 7:30–8:00 am: Senior Class Meeting, THS theater
- April 23, 2:45–3:00 pm: Jostens delivery day; and senior yard sign distribution (front of THS)
- April 27: Senior photos due for slideshow. Email to tlinesniors25@gmail.com
- April 28–May 2: Spirit Week
May
- May 1: Prom ticket sales close
- May 2: Prom Assembly; College Career March
- May 3, 7:00–10:00 pm: Prom, Foss Waterway Seport, Tacoma
- May 5–16: Various AP Testing
- May 9: Final day to order cap and gown for free delivery to school
- May 21, 1:00 pm: Graduation performance and speaker auditions, choir room
- May 22: Additional Graduation ticket request closes
- May 22: Thrifterline
- May 22: Final cap and gown delivery date to THS during lunches
- May 26: No School, Memorial Day
- May 28: Marching Practice (periods 1-2, main gym)
- May 28, 2:00–2:30 pm: Graduation tickets distributed*
- May 29: Cultural Awareness Assembly (after 6th period)
- May 30: Spring Fling / Yearbook Distribution
June
- June 3, 6:00 pm: Senior Honors Night*, by invite only
- June 6, 6:00–8:00 pm: Senior Banquet, THS commons, open to all seniors
- June 9: Senior Finals 1/3/5
- June 10: Senior Finals 2/4/6
- June 10: Seniors' Last Academic Day; Paper Toss @ 2:00 pm
- June 11: Senior fines clear / Chromebook turn in / Elementary Marches* / final graduation ticket pickup
- June 12, 12:00–2:00 pm: Grad practice, Saint Martins University
- June 12, 7:00 pm: Graduation Ceremony (graduates arrive at 6:15 pm)
- June 16, 9:00 am–2:30 pm: Diploma pickup
July
Main office will be closed the first two weeks of July, please plan accordingly.
*On-track to graduate seniors only