- July 1, 1980
- July 2, 1980
- July 3, 1980
- July 4, 1980
- July 5, 1980
- July 6, 1980
- July 7, 1980
- July 8, 1980 (This strip and the following three strips are adapted in the segment "Friends" from The Charlie Brown and Snoopy Show episode "Snoopy's Robot")
- July 9, 1980
- July 10, 1980
- July 11, 1980
- July 12, 1980
- July 13, 1980
- July 14, 1980
- July 15, 1980
- July 16, 1980
- July 17, 1980
- July 18, 1980
- July 19, 1980
- July 20, 1980
- July 21, 1980 (Beginning of a storyline in which Schroeder flies to music camp in the Sopwith Camel, which was later adapted as the segment "Snoopy's Flight" of the 1985 The Charlie Brown and Snoopy Show episode "Peppermint Patty's School Days")
- July 22, 1980 (Schroeder´s last major impact in a storyline)
- July 23, 1980 (The fifth reference to Citizen Kane in Peanuts)
- July 24, 1980
- July 25, 1980
- July 26, 1980
- July 27, 1980 (This strip is adapted for the end credits of The Peanuts Movie)
- July 28, 1980
- July 29, 1980
- July 30, 1980
- July 31, 1980 (The sixth reference to Citizen Kane in Peanuts)
| ← June 1980 | August 1980 → |