Frost dates in Olathe, CO
The average last spring frost in Olathe is around May 3 and the first fall frost is around October 9. That gives Olathe an average growing season of about 159 days.
Last spring frost
| Early (10% chance after) | April 18 |
|---|---|
| Average (50%) | May 3 |
| Late (90%) | May 15 |
First fall frost
| Early (10%) | September 22 |
|---|---|
| Average (50%) | October 9 |
| Late (90% chance before) | October 25 |