- December 1, 1987 (Ending of a storyline that was later adapted in the book Your Dog Plays Hockey? The ending quote from Snoopy is recycled in the February 28, 1988 strip)
- December 2, 1987
- December 3, 1987 (This strip is adapted in I Want a Dog for Christmas, Charlie Brown. This strip was reprinted on December 1, 1997)
- December 4, 1987
- December 5, 1987
- December 6, 1987 (This strip is adapted in I Want a Dog for Christmas, Charlie Brown)
- December 7, 1987
- December 8, 1987
- December 9, 1987
- December 10, 1987 (This strip is adapted in It's Christmastime Again, Charlie Brown)
- December 11, 1987
- December 12, 1987
- December 13, 1987
- December 14, 1987 (Beginning of a storyline in which Linus is concerned about Lydia's Christmas cards, most of which was later adapted into the primary storyline of the "Yuletide Greetings from Linus" segment of the 2002 animated special Charlie Brown's Christmas Tales)
- December 15, 1987 (This strip and the following strip are used on the pages for December 5 and 6 of the Dayspring Peanuts A Year's Worth of Smiles and Blessings Desk Calendar)
- December 16, 1987
- December 17, 1987
- December 18, 1987 (This strip and the second following strip are used on the pages for October 12 and December 20 of the Dayspring Peanuts A Year's Worth of Smiles and Blessings Desk Calendar)
- December 19, 1987
- December 20, 1987 (This strip was reprinted on December 21, 1997 and was also adapted for It's Christmastime Again, Charlie Brown)
- December 21, 1987 (Ending of a storyline adapted in the "Yuletide Greetings from Linus" segment of the 2002 animated special Charlie Brown's Christmas Tales)
- December 22, 1987
- December 23, 1987
- December 24, 1987 (This strip was reprinted on December 24, 1997)
- December 25, 1987 (This strip is adapted in It's Christmastime Again, Charlie Brown)
- December 26, 1987
- December 27, 1987 (This strip was adapted as the short "Sally" from the 2014 French TV series Peanuts)
- December 28, 1987
- December 29, 1987 (This strip was reprinted on December 20, 1997)
- December 30, 1987
- December 31, 1987
← November 1987 | January 1988→ |