- September 1, 1984
- September 2, 1984 (The ninth reference to Citizen Kane in the Peanuts comic strip)
- September 3, 1984 (Continuation of a storyline that was later adapted in the book Beware of the Snoring Ghost!)
- September 4, 1984
- September 5, 1984
- September 6, 1984
- September 7, 1984
- September 8, 1984
- September 9, 1984
- September 10, 1984
- September 11, 1984 (This strip and the following two strips are adapted in the episode "Problems" from the 2014 French TV series Peanuts)
- September 12, 1984 (Goof: Franklin's hands are white in the second and third panels)
- September 13, 1984
- September 14, 1984
- September 15, 1984
- September 16, 1984
- September 17, 1984
- September 18, 1984
- September 19, 1984 (This strip is adapted in the episode "Problems" from the 2014 French TV series Peanuts)
- September 20, 1984
- September 21, 1984
- September 22, 1984
- September 23, 1984
- September 24, 1984
- September 25, 1984
- September 26, 1984
- September 27, 1984
- September 28, 1984
- September 29, 1984
- September 30, 1984 (This strip is adapted for the ending of It's Christmastime Again, Charlie Brown)
← August 1984 | October 1984 → |