Frost dates in Stewardson, IL
The average last spring frost in Stewardson is around April 14 and the first fall frost is around October 19. That gives Stewardson an average growing season of about 188 days.
Last spring frost
| Early (10% chance after) | April 7 |
|---|---|
| Average (50%) | April 14 |
| Late (90%) | April 23 |
First fall frost
| Early (10%) | October 3 |
|---|---|
| Average (50%) | October 19 |
| Late (90% chance before) | October 30 |