Frost dates in Atchison, KS
The average last spring frost in Atchison is around April 13 and the first fall frost is around October 21. That gives Atchison an average growing season of about 191 days.
Last spring frost
| Early (10% chance after) | March 31 |
|---|---|
| Average (50%) | April 13 |
| Late (90%) | April 30 |
First fall frost
| Early (10%) | October 6 |
|---|---|
| Average (50%) | October 21 |
| Late (90% chance before) | November 6 |