Frost dates in Marathon, NY
The average last spring frost in Marathon is around May 6 and the first fall frost is around October 19. That gives Marathon an average growing season of about 166 days.
Last spring frost
| Early (10% chance after) | April 24 |
|---|---|
| Average (50%) | May 6 |
| Late (90%) | May 18 |
First fall frost
| Early (10%) | October 11 |
|---|---|
| Average (50%) | October 19 |
| Late (90% chance before) | October 31 |