Frost dates in Harrington, DE
The average last spring frost in Harrington is around April 13 and the first fall frost is around October 27. That gives Harrington an average growing season of about 197 days.
Last spring frost
| Early (10% chance after) | March 31 |
|---|---|
| Average (50%) | April 13 |
| Late (90%) | April 22 |
First fall frost
| Early (10%) | October 14 |
|---|---|
| Average (50%) | October 27 |
| Late (90% chance before) | November 6 |