Frost dates in Hannibal, MO
The average last spring frost in Hannibal is around April 13 and the first fall frost is around October 25. That gives Hannibal an average growing season of about 195 days.
Last spring frost
| Early (10% chance after) | March 31 |
|---|---|
| Average (50%) | April 13 |
| Late (90%) | April 28 |
First fall frost
| Early (10%) | October 8 |
|---|---|
| Average (50%) | October 25 |
| Late (90% chance before) | November 8 |