Frost dates in Deer Park, IL
The average last spring frost in Deer Park is around April 28 and the first fall frost is around October 13. That gives Deer Park an average growing season of about 168 days.
Last spring frost
| Early (10% chance after) | April 11 |
|---|---|
| Average (50%) | April 28 |
| Late (90%) | May 14 |
First fall frost
| Early (10%) | October 2 |
|---|---|
| Average (50%) | October 13 |
| Late (90% chance before) | November 1 |