- March 1, 1990
- March 2, 1990
- March 3, 1990
- March 4, 1990
- March 5, 1990
- March 6, 1990
- March 7, 1990
- March 8, 1990
- March 9, 1990
- March 10, 1990
- March 11, 1990
- March 12, 1990
- March 13, 1990
- March 14, 1990
- March 15, 1990
- March 16, 1990 (The day that Why, Charlie Brown, Why? first aired)
- March 17, 1990
- March 18, 1990
- March 19, 1990
- March 20, 1990
- March 21, 1990
- March 22, 1990 (This strip is adapted in the segment "Yuletide Greetings from Linus" of the 2002 special Charlie Brown's Christmas Tales)
- March 23, 1990
- March 24, 1990
- March 25, 1990
- March 26, 1990
- March 27, 1990
- March 28, 1990
- March 29, 1990
- March 30, 1990
- March 31, 1990
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