Frost dates in Hannibal, NY
The average last spring frost in Hannibal is around April 24 and the first fall frost is around October 24. That gives Hannibal an average growing season of about 183 days.
Last spring frost
| Early (10% chance after) | April 12 |
|---|---|
| Average (50%) | April 24 |
| Late (90%) | May 9 |
First fall frost
| Early (10%) | October 8 |
|---|---|
| Average (50%) | October 24 |
| Late (90% chance before) | November 8 |