- December 1, 1985
- December 2, 1985
- December 3, 1985
- December 4, 1985
- December 5, 1985 (This strip is adapted in the segment "Peace on Earth from Lucy" of the 2002 special Charlie Brown's Christmas Tales)
- December 6, 1985
- December 7, 1985 (This strip is used on the page for December 21 of the Dayspring Peanuts A Year's Worth of Smiles and Blessings Desk Calendar)
- December 8, 1985
- December 9, 1985
- December 10, 1985 (This strip and the following four strips are adapted in the episode "That Day" from the 2014 French TV series Peanuts)
- December 11, 1985
- December 12, 1985 (A rare instance of an adult being given a speech bubble in a strip from the later years of Peanuts)
- December 13, 1985
- December 14, 1985
- December 15, 1985
- December 16, 1985
- December 17, 1985
- December 18, 1985 (This strip and the following two strips are adapted in It's Christmastime Again, Charlie Brown)
- December 19, 1985
- December 20, 1985
- December 21, 1985
- December 22, 1985
- December 23, 1985
- December 24, 1985 (This strip is adapted in the segment "Merry Christmas from Charlie Brown" of the 2002 special Charlie Brown's Christmas Tales)
- December 25, 1985
- December 26, 1985
- December 27, 1985
- December 28, 1985
- December 29, 1985
- December 30, 1985
- December 31, 1985 (For the first and only time since 1956, a whole year has passed without the football gag happening.)
| ← November 1985 | January 1986 → |