- January 1, 1988
- January 2, 1988
- January 3, 1988 (This strip is adapted in the episode "Classic" from the 2014 French TV series Peanuts)
- January 4, 1988
- January 5, 1988
- January 6, 1988
- January 7, 1988
- January 8, 1988
- January 9, 1988
- January 10, 1988
- January 11, 1988
- January 12, 1988
- January 13, 1988
- January 14, 1988
- January 15, 1988
- January 16, 1988
- January 17, 1988
- January 18, 1988
- January 19, 1988
- January 20, 1988
- January 21, 1988
- January 22, 1988 (Reference to the Muppet character Kermit the Frog, famous for his appearances on The Muppet Show and Sesame Street)
- January 23, 1988 (This strip is used on the page for September 30 of the Dayspring Peanuts A Year's Worth of Smiles and Blessings Desk Calendar)
- January 24, 1988 (This strip is adapted in the episode "A Hard Winter" from the 2014 French TV series Peanuts)
- January 25, 1988
- January 26, 1988
- January 27, 1988
- January 28, 1988
- January 29, 1988 (The day that the animated TV special Snoopy!!! The Musical first aired)
- January 30, 1988
- January 31, 1988 (This strip references the storyline from November and December 1987)
← December 1987 | February 1988 → |