Frost dates in New Castle, DE
The average last spring frost in New Castle is around April 11 and the first fall frost is around November 1. That gives New Castle an average growing season of about 204 days.
Last spring frost
| Early (10% chance after) | March 27 |
|---|---|
| Average (50%) | April 11 |
| Late (90%) | April 23 |
First fall frost
| Early (10%) | October 19 |
|---|---|
| Average (50%) | November 1 |
| Late (90% chance before) | November 12 |