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Advance your degree in a matter of weeks
Winter Session is a fully online, accelerated three-week term for degree-seeking, visiting and non-degree students offered during winter break between December and January each year.
Winter Session 2025
Courses run from December 15, 2025 to January 5, 2026 and count as part of your spring semester credit load.
Registration begins November 3, 2025.
Earn credit while you're away from campus
100% Online
Choose from over 30 courses
Taught by your CU faculty
Earn credit 100% online during a three-week term.
Fulfill a course requirement
Many courses fulfill Arts & Sciences general education and/or major requirements.
Focus on one class
Immerse yourself in a topic or concentrate on a difficult course.
Lower- and upper-division courses offered
Find courses that help you advance your degree whether you’re just starting or nearing graduation.
Spread out your spring credits
Winter Session courses count as part of your spring semester credit load, allowing you to take fewer courses in the spring.
Small class sizes
Get additional help or foster a greater sense of community.
Complete the coursework from wherever you are
Courses are asynchronous and online, meaning you can take your coursework on the go.
Shorten your time to graduation
Save money on tuition and housing by taking coursework in the winter.

Support to help you reach your goals
If you have questions about Winter Session courses, connect with your advisor or a Continuing Education advisor. Advisors can assist you with course selection and understanding how credits apply toward your CU Boulder degree. Continuing Education advisors typically have same or next-day availability, so scheduling an appointment is quick and easy.