Frost dates in Round Lake Beach, IL
The average last spring frost in Round Lake Beach is around April 25 and the first fall frost is around October 12. That gives Round Lake Beach an average growing season of about 170 days.
Last spring frost
| Early (10% chance after) | April 17 |
|---|---|
| Average (50%) | April 25 |
| Late (90%) | May 6 |
First fall frost
| Early (10%) | October 3 |
|---|---|
| Average (50%) | October 12 |
| Late (90% chance before) | October 24 |