Frost dates in Fort Johnson, NY
The average last spring frost in Fort Johnson is around April 30 and the first fall frost is around October 17. That gives Fort Johnson an average growing season of about 170 days.
Last spring frost
| Early (10% chance after) | April 22 |
|---|---|
| Average (50%) | April 30 |
| Late (90%) | May 15 |
First fall frost
| Early (10%) | October 5 |
|---|---|
| Average (50%) | October 17 |
| Late (90% chance before) | October 25 |