- April 1, 1956 (This strip is adapted in It's Arbor Day, Charlie Brown)
- April 2, 1956
- April 3, 1956
- April 4, 1956
- April 5, 1956
- April 6, 1956
- April 7, 1956
- April 8, 1956 (This strip is adapted in A Boy Named Charlie Brown)
- April 9, 1956
- April 10, 1956 (The first reference to The Tale of Peter Rabbit in Peanuts)
- April 11, 1956
- April 12, 1956 (The first time that Charlie Brown gets his kite caught in a tree. This strip and the following strip are adapted in Good Grief, Charlie Brown: Peanuts, with Lucy replacing Violet)
- April 13, 1956
- April 14, 1956
- April 15, 1956
- April 16, 1956 (This strip is adapted in Good Grief, Charlie Brown: Peanuts, with Lucy replacing Patty)
- April 17, 1956
- April 18, 1956 (This strip and the following strip are adapted in Good Grief, Charlie Brown: Peanuts)
- April 19, 1956
- April 20, 1956
- April 21, 1956
- April 22, 1956
- April 23, 1956
- April 24, 1956
- April 25, 1956
- April 26, 1956
- April 27, 1956
- April 28, 1956
- April 29, 1956 (This strip is adapted in You're in Love, Charlie Brown)
- April 30, 1956 (This strip is adapted in Good Grief, Charlie Brown: Peanuts)
