- January 1, 1972
- January 2, 1972
- January 3, 1972
- January 4, 1972 (This strip is adapted in the episode "Just for Love" from the 2014 French TV series Peanuts)
- January 5, 1972
- January 6, 1972 (According to this strip, Peppermint Patty is 7 years old)
- January 7, 1972 (Peppermint Patty appears wearing a dress instead of her signature shirt, shorts and sandals)
- January 8, 1972 (This strip is adapted in the 1976 documentary Happy Anniversary, Charlie Brown)
- January 9, 1972
- January 10, 1972
- January 11, 1972
- January 12, 1972 (Snoopy first appears as an attorney)
- January 13, 1972
- January 14, 1972
- January 15, 1972 (Peppermint Patty's full name is revealed)
- January 16, 1972 (This strip is adapted in the segment "Kiss" from The Charlie Brown and Snoopy Show episode "Snoopy: Man's Best Friend")
- January 17, 1972
- January 18, 1972
- January 19, 1972
- January 20, 1972
- January 21, 1972
- January 22, 1972
- January 23, 1972
- January 24, 1972
- January 25, 1972
- January 26, 1972
- January 27, 1972
- January 28, 1972 (This strip is adapted in the 1976 documentary Happy Anniversary, Charlie Brown)
- January 29, 1972
- January 30, 1972 (The same story of why Charlie Brown was given Snoopy would later be told in the 1972 movie Snoopy, Come Home and the 1980 TV special Life is a Circus, Charlie Brown)
- January 31, 1972
| ← December 1971 | February 1972 → |