- December 1, 1971
- December 2, 1971
- December 3, 1971
- December 4, 1971
- December 5, 1971 (This strip is adapted in the 1976 documentary, Happy Anniversary, Charlie Brown)
- December 6, 1971 (This and the next day's strip were later adapted as the opening scene of the segment "Happy Holidays from Snoopy" in the 2002 animated TV special Charlie Brown's Christmas Tales. Beginning of a storyline adapted in the episode "Let it Snow" from the 2014 French TV series Peanuts and in the segment "The Play" of the 1985 The Charlie Brown and Snoopy Show episode "Sally's Sweet Babboo")
- December 7, 1971
- December 8, 1971
- December 9, 1971
- December 10, 1971
- December 11, 1971
- December 12, 1971
- December 13, 1971 (The halfway point in Pig-Pen's 9-year absence, who hasn't appeared since August 15, 1967)
- December 14, 1971 (Snoopy first calls himself the World Famous Skater)
- December 15, 1971
- December 16, 1971
- December 17, 1971
- December 18, 1971
- December 19, 1971
- December 20, 1971
- December 21, 1971
- December 22, 1971
- December 23, 1971
- December 24, 1971
- December 25, 1971
- December 26, 1971
- December 27, 1971
- December 28, 1971
- December 29, 1971
- December 30, 1971
- December 31, 1971
| ← November 1971 | January 1972 → |