Frost dates in Lebanon, IL
The average last spring frost in Lebanon is around April 13 and the first fall frost is around October 18. That gives Lebanon an average growing season of about 188 days.
Last spring frost
| Early (10% chance after) | March 31 |
|---|---|
| Average (50%) | April 13 |
| Late (90%) | April 28 |
First fall frost
| Early (10%) | October 2 |
|---|---|
| Average (50%) | October 18 |
| Late (90% chance before) | November 5 |