This event has passed.
National River Cleanup Day
May 21
When is National River Cleanup Day celebrated in 2022?
National River Cleanup Day is observed on the third Saturday of May.
Observations
| Weekday | Month | Day | Year |
| Saturday | May | 21 | 2022 |
| Saturday | May | 20 | 2023 |
| Saturday | May | 18 | 2024 |
| Saturday | May | 17 | 2025 |
