Frost dates in Berwyn Heights, MD
The average last spring frost in Berwyn Heights is around April 20 and the first fall frost is around October 21. That gives Berwyn Heights an average growing season of about 184 days.
Last spring frost
| Early (10% chance after) | April 4 |
|---|---|
| Average (50%) | April 20 |
| Late (90%) | May 9 |
First fall frost
| Early (10%) | October 5 |
|---|---|
| Average (50%) | October 21 |
| Late (90% chance before) | November 8 |