Frost dates in Mount Olive, IL
The average last spring frost in Mount Olive is around March 25 and the first fall frost is around November 3. That gives Mount Olive an average growing season of about 223 days.
Last spring frost
| Early (10% chance after) | March 9 |
|---|---|
| Average (50%) | March 25 |
| Late (90%) | April 5 |
First fall frost
| Early (10%) | October 6 |
|---|---|
| Average (50%) | November 3 |
| Late (90% chance before) | November 27 |