Frost dates in Tower Hill, IL
The average last spring frost in Tower Hill is around April 18 and the first fall frost is around October 21. That gives Tower Hill 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 |