Frost dates in Salem, IL
The average last spring frost in Salem is around April 12 and the first fall frost is around October 21. That gives Salem an average growing season of about 192 days.
Last spring frost
| Early (10% chance after) | March 24 |
|---|---|
| Average (50%) | April 12 |
| Late (90%) | April 25 |
First fall frost
| Early (10%) | October 8 |
|---|---|
| Average (50%) | October 21 |
| Late (90% chance before) | November 8 |