Frost dates in Vienna, MD
The average last spring frost in Vienna is around April 10 and the first fall frost is around October 31. That gives Vienna an average growing season of about 204 days.
Last spring frost
| Early (10% chance after) | March 25 |
|---|---|
| Average (50%) | April 10 |
| Late (90%) | April 21 |
First fall frost
| Early (10%) | October 8 |
|---|---|
| Average (50%) | October 31 |
| Late (90% chance before) | November 10 |