Frost dates in Concord, NH
The average last spring frost in Concord is around May 15 and the first fall frost is around September 25. That gives Concord an average growing season of about 133 days.
Last spring frost
| Early (10% chance after) | May 2 |
|---|---|
| Average (50%) | May 15 |
| Late (90%) | May 31 |
First fall frost
| Early (10%) | September 12 |
|---|---|
| Average (50%) | September 25 |
| Late (90% chance before) | October 10 |