Last frost date in Round Lake Beach, Illinois
April 24
Average last frost in spring. In an early year (1 in 10) it's over by April 11; in a late year (1 in 10) it comes after May 9.
October 23
Average first frost in fall. 1 year in 10 it comes by October 8.
Source: NOAA U.S. Climate Normals 1991–2020, station Lake Villa 2NE (USC00114837), 3.5 miles from Round Lake Beach, elevation 840 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Lindenhurst, so its frost dates are the same as Round Lake Beach's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 11 | Apr 24 | May 9 |
| First frost in fall | Oct 8 | Oct 23 | Nov 4 |
Frost-free days in an average year: 180
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 5 | Oct 11 |
| Frost (32°F) | Every year | Apr 24 | Oct 23 |
| Hard freeze (28°F) | Every year | Apr 13 | Nov 3 |
Nights at 32°F or colder in an average year: 132
What to plant now in Round Lake Beach
- Spring planting calendar for an average last frost around April 20 Round Lake Beach: April 24
- Fall planting calendar for an average first frost around October 20 Round Lake Beach: October 23
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in Illinois
Updated