- May 1, 1971
- May 2, 1971 (This strip is adapted in Snoopy, Come Home)
- May 3, 1971 (Beginning of a storyline which was later adapted in There's No Time for Love, Charlie Brown)
- May 4, 1971 (This strip and the following strip are adapted in the episode "Go to School!" from the 2014 French TV series Peanuts)
- May 5, 1971
- May 6, 1971
- May 7, 1971 (In the adaptation of this strip in There's No Time for Love, Charlie Brown, the unnamed little girl is replaced by Marcie, Linus and Lucy. In the episode "Go to School!" from the 2014 French TV series Peanuts, the unnamed girl is replaced by Eudora)
- May 8, 1971
- May 9, 1971 (This strip is adapted in the episode "Always Right" from the 2014 French TV series Peanuts)
- May 10, 1971
- May 11, 1971
- May 12, 1971
- May 13, 1971
- May 14, 1971
- May 15, 1971
- May 16, 1971
- May 17, 1971
- May 18, 1971
- May 19, 1971 (This strip is adapted in Snoopy!!! The Musical)
- May 20, 1971
- May 21, 1971
- May 22, 1971 (This strip is adapted in the title segment of The Charlie Brown and Snoopy Show episode "Lucy Loves Schroeder")
- May 23, 1971
- May 24, 1971
- May 25, 1971
- May 26, 1971
- May 27, 1971 (Snoopy first appears as Joe Cool)
- May 28, 1971
- May 29, 1971
- May 30, 1971 (This strip is adapted in the shorts "The Mysteries of Love" and "Love Complex" from the 2014 French TV series Peanuts)
- May 31, 1971 (Beginning of a storyline which was later adapted in Snoopy, Come Home)
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