Last frost date in Freeport, Illinois
April 26
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 11.
October 13
Average first frost in fall. 1 year in 10 it comes by September 30.
Source: NOAA U.S. Climate Normals 1991–2020, station Freeport Waste Wtp (USC00113262), 1.7 miles from Freeport, elevation 750 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 11 | Apr 26 | May 11 |
| First frost in fall | Sept 30 | Oct 13 | Oct 26 |
Frost-free days in an average year: 169
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 6 | Oct 3 |
| Frost (32°F) | Every year | Apr 26 | Oct 13 |
| Hard freeze (28°F) | Every year | Apr 14 | Oct 24 |
Nights at 32°F or colder in an average year: 148
What to plant now in Freeport
- Spring planting calendar for an average last frost around April 30 Freeport: April 26
- Fall planting calendar for an average first frost around October 10 Freeport: October 13
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
- Rockford 29 mi · last frost Apr 24
- Machesney Park 32 mi · last frost May 1
- Dixon 32 mi · last frost Apr 21
- DeKalb 52 mi · last frost Apr 24
- East Moline 66 mi · last frost Apr 16
Updated