Frost dates in Kirkwood, IL
The average last spring frost in Kirkwood is around April 21 and the first fall frost is around October 12. That gives Kirkwood an average growing season of about 174 days.
Last spring frost
| Early (10% chance after) | March 29 |
|---|---|
| Average (50%) | April 21 |
| Late (90%) | May 4 |
First fall frost
| Early (10%) | September 28 |
|---|---|
| Average (50%) | October 12 |
| Late (90% chance before) | October 22 |