Frost dates in Ohlman, IL
The average last spring frost in Ohlman is around April 18 and the first fall frost is around October 21. That gives Ohlman an average growing season of about 186 days.
Last spring frost
| Early (10% chance after) | April 2 |
|---|---|
| Average (50%) | April 18 |
| Late (90%) | May 4 |
First fall frost
| Early (10%) | October 4 |
|---|---|
| Average (50%) | October 21 |
| Late (90% chance before) | November 5 |