Frost dates in Plainfield, NJ
The average last spring frost in Plainfield is around April 21 and the first fall frost is around October 17. That gives Plainfield an average growing season of about 179 days.
Last spring frost
| Early (10% chance after) | April 7 |
|---|---|
| Average (50%) | April 21 |
| Late (90%) | May 8 |
First fall frost
| Early (10%) | October 5 |
|---|---|
| Average (50%) | October 17 |
| Late (90% chance before) | November 1 |