Frost dates in Olathe, KS
The average last spring frost in Olathe is around April 14 and the first fall frost is around October 25. That gives Olathe an average growing season of about 194 days.
Last spring frost
| Early (10% chance after) | April 1 |
|---|---|
| Average (50%) | April 14 |
| Late (90%) | May 2 |
First fall frost
| Early (10%) | October 8 |
|---|---|
| Average (50%) | October 25 |
| Late (90% chance before) | November 7 |