Frost dates in Mankato, KS
The average last spring frost in Mankato is around April 25 and the first fall frost is around October 13. That gives Mankato an average growing season of about 171 days.
Last spring frost
| Early (10% chance after) | April 8 |
|---|---|
| Average (50%) | April 25 |
| Late (90%) | May 10 |
First fall frost
| Early (10%) | September 29 |
|---|---|
| Average (50%) | October 13 |
| Late (90% chance before) | October 29 |