Frost dates in Hamburg, IL
The average last spring frost in Hamburg is around April 20 and the first fall frost is around October 13. That gives Hamburg an average growing season of about 176 days.
Last spring frost
| Early (10% chance after) | April 7 |
|---|---|
| Average (50%) | April 20 |
| Late (90%) | May 7 |
First fall frost
| Early (10%) | September 30 |
|---|---|
| Average (50%) | October 13 |
| Late (90% chance before) | October 31 |