CSU Academic Calendar 2025-2026: Important Dates & Deadlines

CSU Academic Calendar 2025-2026 schedule has information on application deadlines, tuition payment due dates, class start and end dates, holiday breaks, and final exam schedules for the upcoming academic year.

Colorado State University operates on a semester system, featuring two primary semesters: Fall and Spring, each running for about 15-16 weeks of instruction.

Beyond these, CSU offers a robust Summer Session, which includes various flexible options like 4-week, 8-week, and 12-week terms. This structure allows students to pursue their studies year-round.

CSU Academic Calendar Fall 2025

1. CSU move-in day for fall 2025 is from Sunday, August 17, to Sunday, August 24, 2025. Residence Hall Early Arrivals is from Sunday, August 17, to Monday, August 18, 2025. Residence Hall Fall Move-In is from Tuesday, August 19, to Wednesday, August 20, 2025. Aggie Village Fall Move-in day is Thursday, August 21, to Sunday, August 24, 2025.
2. CSU Fall 2025 classes start on Monday, August 25, 2025. It is the first day of classes for Colorado State students.
3. The restricted course drop period ends on Friday, August 29, 2025.
4. Add without an override deadline on Monday, September 1, 2025.
5. Labor Day holiday (university closed) on Monday, September 1, 2025.
6. Add override period begins on Tuesday, September 2, 2025.
7. CENSUS: Add/drop deadline and grading mode changes deadline on Wednesday, September 10, 2025, according to the CSU Academic Calendar 2025-2026.
8. The course withdrawal period ends on Friday, November 14, 2025.
9. Repeat/repair deadline on Friday, November 14, 2025.
10. Fall recess begins (no classes) on Saturday, November 22, 2025.
11. Thanksgiving holiday (university closed) on Thursday, November 27, 2025, to Sunday, November 30, 2025. Classes resume on Monday, December 1, 2025.
12. Last day of classes on Friday, December 12, 2025.
13. The semester withdrawal deadline is Friday, December 12, 2025.
14. Final exams begin on Monday, December 15, 2025.
15. Grades due by 2:00 PM on Tuesday, December 23, 2025.
16. Grades available on RAMweb on Wednesday, December 24, 2025.
17. Christmas holiday (university closed) from Wednesday, December 24, 2025, to Friday, December 26, 2025.

CSU Academic Calendar Spring 2026

1. New Year’s Day holiday (university closed) on Thursday, January 1, 2026.
2. Martin Luther King Jr. Day holiday (university closed) on Monday, January 19, 2026.
3. CSU Spring 2026 Classes start on Tuesday, January 20, 2026.
4. The restricted drop deadline is on Friday, January 23, 2026.
5. Add without an override deadline on Sunday, January 25, 2026.
6. Add with override period begins on Monday, January 26, 2026.
7. CENSUS: Add/drop deadline and grading mode changes deadline on Wednesday, February 4, 2026.
8. CSU Spring break begins (no classes) on Saturday, March 14, 2026, and ends on Sunday, March 22, 2026. Classes resume on Monday, March 23, 2026.
9. The course withdrawal deadline is Friday, April 17, 2026.
10. Repeat/repair deadline on Friday, April 17, 2026.
11. Classes end on Friday, May 8, 2026.
12. The semester withdrawal deadline is Friday, May 8, 2026.
13. Final exams begin on Monday, May 11, 2026.

CSU Academic Calendar Summer 2026

1. Summer terms begin (4-week, 8-week, 12-week sessions) on Monday, May 18, 2026.
2. Spring grades are due by 2:00 PM on Tuesday, May 19, 2026.
3. Memorial Day holiday (university closed) on Monday, May 25, 2026.
4. The first 4-week summer term ends on Friday, June 12, 2026.
5. The second 4-week and 8-week summer terms begin on Monday, June 15, 2026.
6. Juneteenth holiday (university closed) on Friday, June 19, 2026.
7. Summer CENSUS date on Wednesday, June 24, 2026.
8. Independence Day is observed (the university is closed) on Friday, July 3, 2026.
9. The second 4-week and first 8-week terms end on Friday, July 10, 2026.
10. The third 4-week term begins on Monday, July 13, 2026.
11. Summer terms end (12-week, second 8-week, third 4-week) on Friday, August 7, 2026.
12. Summer grades are due by 2:00 PM on Tuesday, August 11, 2026.
13. Summer grades will be available on RAMweb on Wednesday, August 12, 2026.

For more on the CSU Academic Calendar 2025-2026, visit the Colorado State University calendar website.