- January 1, 1991 (This strip is adapted for the end credits of The Peanuts Movie)
- January 2, 1991
- January 3, 1991
- January 4, 1991
- January 5, 1991
- January 6, 1991
- January 7, 1991
- January 8, 1991
- January 9, 1991 (Snoopy first appears as the World Famous Flagman)
- January 10, 1991
- January 11, 1991
- January 12, 1991
- January 13, 1991 (This strip makes an appearance in Get Ready for School, Charlie Brown!)
- January 14, 1991
- January 15, 1991
- January 16, 1991
- January 17, 1991
- January 18, 1991
- January 19, 1991
- January 20, 1991
- January 21, 1991
- January 22, 1991
- January 23, 1991
- January 24, 1991
- January 25, 1991
- January 26, 1991
- January 27, 1991
- January 28, 1991
- January 29, 1991
- January 30, 1991 (This strip is used on the page for August 8 of the Dayspring Peanuts A Year's Worth of Smiles and Blessings Desk Calendar)
- January 31, 1991
| ← December 1990 | February 1991 → |