Last frost date in Dixon, Illinois
April 21
Average last frost in spring. In an early year (1 in 10) it's over by April 7; in a late year (1 in 10) it comes after May 5.
October 19
Average first frost in fall. 1 year in 10 it comes by October 4.
Source: NOAA U.S. Climate Normals 1991–2020, station Dixon 1W (USC00112348), 1.9 miles from Dixon, elevation 660 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Sterling, so its frost dates are the same as Dixon's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 7 | Apr 21 | May 5 |
| First frost in fall | Oct 4 | Oct 19 | Oct 30 |
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 2 | Oct 9 |
| Frost (32°F) | Every year | Apr 21 | Oct 19 |
| Hard freeze (28°F) | Every year | Apr 10 | Oct 30 |
Nights at 32°F or colder in an average year: 138
What to plant now in Dixon
- Spring planting calendar for an average last frost around April 20 Dixon: April 21
- Fall planting calendar for an average first frost around October 20 Dixon: October 19
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
- Freeport 32 mi · last frost Apr 26
- Rockford 36 mi · last frost Apr 24
- DeKalb 38 mi · last frost Apr 24
- Machesney Park 43 mi · last frost May 1
- Kewanee 48 mi · last frost Apr 24
Updated