Frost dates in Smithville, MO
The average last spring frost in Smithville is around April 18 and the first fall frost is around October 17. That gives Smithville an average growing season of about 182 days.
Last spring frost
| Early (10% chance after) | March 31 |
|---|---|
| Average (50%) | April 18 |
| Late (90%) | May 4 |
First fall frost
| Early (10%) | October 3 |
|---|---|
| Average (50%) | October 17 |
| Late (90% chance before) | October 30 |