Frost dates in Groton, NY
The average last spring frost in Groton is around May 10 and the first fall frost is around October 9. That gives Groton an average growing season of about 152 days.
Last spring frost
| Early (10% chance after) | April 28 |
|---|---|
| Average (50%) | May 10 |
| Late (90%) | May 26 |
First fall frost
| Early (10%) | September 24 |
|---|---|
| Average (50%) | October 9 |
| Late (90% chance before) | October 24 |