Frost dates in Henderson, IL
The average last spring frost in Henderson is around April 20 and the first fall frost is around October 16. That gives Henderson an average growing season of about 179 days.
Last spring frost
| Early (10% chance after) | April 7 |
|---|---|
| Average (50%) | April 20 |
| Late (90%) | May 6 |
First fall frost
| Early (10%) | October 1 |
|---|---|
| Average (50%) | October 16 |
| Late (90% chance before) | November 1 |