- October 1, 1991 (The ninth reference to Zamboni)
- October 2, 1991
- October 3, 1991
- October 4, 1991
- October 5, 1991
- October 6, 1991
- October 7, 1991
- October 8, 1991
- October 9, 1991 (Charlie Brown says that he is reading Hans Brinker, or The Silver Skates to Snoopy)
- October 10, 1991
- October 11, 1991
- October 12, 1991
- October 13, 1991
- October 14, 1991
- October 15, 1991 (This strip and the following three strips are adapted in the book Leaf It to Sally Brown)
- October 16, 1991
- October 17, 1991
- October 18, 1991
- October 19, 1991
- October 20, 1991
- October 21, 1991
- October 22, 1991
- October 23, 1991
- October 24, 1991
- October 25, 1991 (This strip is used on the page for June 28 of the Dayspring Peanuts: A Year's Worth of Smiles and Blessings Desk Calendar)
- October 26, 1991
- October 27, 1991
- October 28, 1991
- October 29, 1991
- October 30, 1991
- October 31, 1991
| ← September 1991 | November 1991 → |