- May 1, 1966 (This segment is adapted in the segment "Piano" from The Charlie Brown and Snoopy Show episode "Linus' Security Blanket")
- May 2, 1966
- May 3, 1966
- May 4, 1966
- May 5, 1966
- May 6, 1966
- May 7, 1966
- May 8, 1966
- May 9, 1966 (Start of a storyline in which Lucy and Linus move away which was later adapted in the 1983 animated TV special Is This Goodbye, Charlie Brown?)
- May 10, 1966
- May 11, 1966
- May 12, 1966
- May 13, 1966
- May 14, 1966
- May 15, 1966
- May 16, 1966
- May 17, 1966
- May 18, 1966 (This strip is adapted in Play It Again, Charlie Brown. Schroeder paraphrases Henry Higgins at the end of My Fair Lady.)
- May 19, 1966
- May 20, 1966
- May 21, 1966 (End of a storyline adapted in the 1983 animated TV special Is This Goodbye, Charlie Brown?)
- May 22, 1966
- May 23, 1966
- May 24, 1966
- May 25, 1966
- May 26, 1966
- May 27, 1966
- May 28, 1966
- May 29, 1966 (This strip is adapted in A Charlie Brown Valentine)
- May 30, 1966
- May 31, 1966