- September 1, 1976
- September 2, 1976
- September 3, 1976
- September 4, 1976 (This strip was adapted as a bumper for the 2014 French TV series Peanuts)
- September 5, 1976
- September 6, 1976
- September 7, 1976
- September 8, 1976
- September 9, 1976 (This strip is adapted as the segment "Sally" in It's an Adventure, Charlie Brown)
- September 10, 1976
- September 11, 1976
- September 12, 1976 (Football gag for 1976. This strip is adapted in the documentary, Here's to You, Charlie Brown: 50 Great Years and the episode "Trust Me" from the 2014 French TV series Peanuts)
- September 13, 1976
- September 14, 1976
- September 15, 1976
- September 16, 1976 (Beginning of a storyline that was later adapted in A Charlie Brown Celebration and in the episode "The School of Hard Knocks" from the 2014 French TV series Peanuts. Charlie Brown replaces Marcie)
- September 17, 1976
- September 18, 1976
- September 19, 1976
- September 20, 1976 (The first reference to Ace Obedience School)
- September 21, 1976
- September 22, 1976
- September 23, 1976
- September 24, 1976
- September 25, 1976
- September 26, 1976
- September 27, 1976
- September 28, 1976
- September 29, 1976
- September 30, 1976
| ← August 1976 | October 1976 → |