National Arbor Day 2025 Dates. Arbor day in 2025 is on friday, april 25 (fourth friday of april). National arbor day always falls on the last friday in april, but many states observe arbor day on different dates.
Next arbor day friday, 25 april 2025 america usually celebrates arbor day on the last friday of april. Check also the date of arbor day in 2026 and in the following years.