Frost dates in Charlestown, MD
The average last spring frost in Charlestown is around April 12 and the first fall frost is around October 31. That gives Charlestown an average growing season of about 202 days.
Last spring frost
| Early (10% chance after) | March 25 |
|---|---|
| Average (50%) | April 12 |
| Late (90%) | April 30 |
First fall frost
| Early (10%) | October 10 |
|---|---|
| Average (50%) | October 31 |
| Late (90% chance before) | November 16 |