Frost dates in Martinsburg, MO
The average last spring frost in Martinsburg is around April 17 and the first fall frost is around October 18. That gives Martinsburg an average growing season of about 184 days.
Last spring frost
| Early (10% chance after) | April 5 |
|---|---|
| Average (50%) | April 17 |
| Late (90%) | May 3 |
First fall frost
| Early (10%) | October 2 |
|---|---|
| Average (50%) | October 18 |
| Late (90% chance before) | November 3 |