Frost dates in Helena, AL
The average last spring frost in Helena is around March 23 and the first fall frost is around November 6. That gives Helena an average growing season of about 228 days.
Last spring frost
| Early (10% chance after) | March 6 |
|---|---|
| Average (50%) | March 23 |
| Late (90%) | April 4 |
First fall frost
| Early (10%) | October 28 |
|---|---|
| Average (50%) | November 6 |
| Late (90% chance before) | November 26 |