Frost dates in Wilmington, DE
The average last spring frost in Wilmington is around April 10 and the first fall frost is around November 4. That gives Wilmington an average growing season of about 208 days.
Last spring frost
| Early (10% chance after) | March 25 |
|---|---|
| Average (50%) | April 10 |
| Late (90%) | April 27 |
First fall frost
| Early (10%) | October 16 |
|---|---|
| Average (50%) | November 4 |
| Late (90% chance before) | November 16 |