- December 1, 1964 (This strip and the following three strips are adapted as the segment "Dear Great Pumpkin" in Peanuts Motion Comics)
- December 2, 1964
- December 3, 1964
- December 4, 1964
- December 5, 1964
- December 6, 1964 (This strip is adapted in It's the Easter Beagle, Charlie Brown)
- December 7, 1964
- December 8, 1964 (This strip is adapted as the segment "Mother's Day" in Peanuts Motion Comics)
- December 9, 1964
- December 10, 1964 (This strip is adapted as the segment "April Fool" in Peanuts Motion Comics)
- December 11, 1964
- December 12, 1964
- December 13, 1964 (This strip is adapted as the segment "Dear Santa Claus" in Peanuts Motion Comics)
- December 14, 1964
- December 15, 1964 (This strip is adapted in You're in Love, Charlie Brown and as the segment "Valentine Crush" in Peanuts Motion Comics)
- December 16, 1964 (Beethoven's birthday)
- December 17, 1964 (This strip is adapted in You're in Love, Charlie Brown)
- December 18, 1964 (This strip is adapted as the segment "Valentine Crush" in Peanuts Motion Comics)
- December 19, 1964
- December 20, 1964 (This strip is adapted as the segment "Dear Santa Claus" in Peanuts Motion Comics and in the segment "Yuletide Greetings from Linus" of the 2002 special Charlie Brown's Christmas Tales)
- December 21, 1964
- December 22, 1964
- December 23, 1964
- December 24, 1964 (This strip is adapted in A Charlie Brown Christmas)
- December 25, 1964
- December 26, 1964
- December 27, 1964 (This strip is adapted as the segment "Dear Santa Claus" in Peanuts Motion Comics)
- December 28, 1964 (Beginning of a storyline that was later adapted in Happy New Year, Charlie Brown!, The Peanuts Movie and in the episode "School Tomorrow" from the 2014 French TV series Peanuts)
- December 29, 1964
- December 30, 1964
- December 31, 1964
