- December 1, 1998
- December 2, 1998
- December 3, 1998
- December 4, 1998
- December 5, 1998
- December 6, 1998
- December 7, 1998
- December 8, 1998
- December 9, 1998
- December 10, 1998
- December 11, 1998 (Sally develops a new philosophy)
- December 12, 1998
- December 13, 1998
- December 14, 1998
- December 15, 1998
- December 16, 1998
- December 17, 1998 (Beginning of a storyline that was later adapted in I Want a Dog for Christmas, Charlie Brown)
- December 18, 1998 (Rerun wants to name the dog Rover, possibly a reference to one of Snoopy's brothers in Snoopy's Reunion)
- December 19, 1998
- December 20, 1998 (The final time that Sally calls Linus her Sweet Babboo. This strip is adapted in the segment "Merry Christmas from Charlie Brown" of the 2002 special Charlie Brown's Christmas Tales)
- December 21, 1998
- December 22, 1998
- December 23, 1998
- December 24, 1998
- December 25, 1998 (This strip is adapted in I Want a Dog for Christmas, Charlie Brown)
- December 26, 1998
- December 27, 1998
- December 28, 1998
- December 29, 1998
- December 30, 1998
- December 31, 1998 (The final reference to Woodstock's mother)
