September 1, 1965 (Second appearance of the phrase "Sydney or the bush". The first was on August 24, 1965. This strip and the following strip are adapted in the episode "Good for Nothing" from the 2014 French TV series Peanuts)
September 13, 1965 (This and the following three strips are adapted in It Was a Short Summer, Charlie Brown. Instead of being 1,000-word essay, it is changed to a 500-word essay and Charlie Brown writes thirteen words instead of eight)
September 14, 1965
September 15, 1965
September 16, 1965 (This strip is used on the page for September 24 of the Dayspring Peanuts A Year's Worth of Smiles and Blessings Desk Calendar)
September 17, 1965
September 18, 1965 (This strip and the ones from September 22 and 23, 1965 are adapted in the shorts "Sound and Sensibility" and "Happy Dance" from the 2014 French TV series Peanuts. This strip is used on the page for December 15 of the Dayspring Peanuts A Year's Worth of Smiles and Blessings Desk Calendar)
September 19, 1965 (This strip is adapted in the episode "A Day with Snoopy" from the 2014 French TV series Peanuts)
September 20, 1965
September 21, 1965
September 22, 1965
September 23, 1965
September 24, 1965
September 25, 1965
September 26, 1965
September 27, 1965
September 28, 1965 (This strip and the following two strips are adapted in Snoopy, Come Home)