- August 1, 1989
- August 2, 1989
- August 3, 1989 (Unnamed Ponytailed Girl's last appearance)
- August 4, 1989 (The tenth reference to Citizen Kane in the Peanuts comic strip)
- August 5, 1989 (This strip is adapted in the episode "School Is Out!" from the 2014 French TV series Peanuts)
- August 6, 1989
- August 7, 1989
- August 8, 1989 (This strip and the following two strips are adapted in the episode "School Is Out!" from the 2014 French TV series Peanuts)
- August 9, 1989
- August 10, 1989
- August 11, 1989
- August 12, 1989 (This strip is used on the page for July 12 of the Dayspring Peanuts A Year's Worth of Smiles and Blessings Desk Calendar)
- August 13, 1989 (This strip is adapted for the end credits of The Peanuts Movie)
- August 14, 1989 (A rare interaction between Franklin and Patty)
- August 15, 1989 (This strip is used on the page for November 28 of the Dayspring Peanuts A Year's Worth of Smiles and Blessings Desk Calendar)
- August 16, 1989
- August 17, 1989
- August 18, 1989
- August 19, 1989
- August 20, 1989
- August 21, 1989
- August 22, 1989 (This strip is used on the page for May 22 of the Dayspring Peanuts A Year's Worth of Smiles and Blessings Desk Calendar)
- August 23, 1989
- August 24, 1989
- August 25, 1989
- August 26, 1989
- August 27, 1989
- August 28, 1989
- August 29, 1989
- August 30, 1989
- August 31, 1989
← July 1989 | September 1989→ |