 | April 2021 |  | JanFebMarAprMayJunJulAugSepOctNovDec
| Sun | Mon | Tue | Wed | Thu | Fri | Sat | 28
| 29
| 30
| 31
| April 1
April Fool's Day
Oklahoma | Kansas | Iowa |
| 2
| 3
Minnesota | Wisconsin | Illinoise | Indiana | Ohio |
| 4
Easter
Pennsylvania | New Jersey | New York | Massachusetts |
| 5
| 6
Virginia | North Carolina | South Carolina |
| 7
| 8
| 9
| 10
| 11
Alabama | Mississippi | Louisiana | Texas |
| 12
| 13
| 14
| 15
| 16
| 17
| 18
Van # 1 | Indiana | Kentucky | Pennsylvania | Van # 2 | Texas | Louisiana | Mississippi |
| 19
| 20
| 21
Indiana | Kentucky | Ohio | Pennsylvania | New York |
| 22
Earth Day
New York | Massachusetts | Maine |
| 23
New York | New Jersey | Pennsylvania |
| 24
Virginia | North Carolina | Georgia |
| 25
| 26
North Carolina | Virginia | Maryland |
| 27
Pennsylvania | Deleware | New Jersey | New York |
| 28
Massachusetts | Maine | New Hampshire | Vermont |
| 29
| 30
| 1
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