Last frost date in Columbia, Illinois
April 6
Average last frost in spring. In an early year (1 in 10) it's over by March 22; in a late year (1 in 10) it comes after April 20.
October 27
Average first frost in fall. 1 year in 10 it comes by October 14.
Source: NOAA U.S. Climate Normals 1991–2020, station Cahokia (USC00111160), 7.6 miles from Columbia, elevation 400 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Mar 22 | Apr 6 | Apr 20 |
| First frost in fall | Oct 14 | Oct 27 | Nov 7 |
Frost-free days in an average year: 203
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 18 | Oct 18 |
| Frost (32°F) | Every year | Apr 6 | Oct 27 |
| Hard freeze (28°F) | Every year | Mar 27 | Nov 5 |
Nights at 32°F or colder in an average year: 97
What to plant now in Columbia
- Corn saladSept 15 – Nov 1Now
- Upland cressSept 15 – Nov 1Now
- Rhubarb plantsNov 1 – Dec 1Soon
- Asparagus plantsNov 15 – Jan 1Soon
- Spring planting calendar for an average last frost around April 10 Columbia: April 6
- Fall planting calendar for an average first frost around October 30 Columbia: October 27
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
- Waterloo 9 mi · last frost Apr 9
- Belleville 13 mi · last frost Apr 12
- Collinsville 19 mi · last frost Apr 8
- Granite City 19 mi · last frost Apr 4
- Centralia 59 mi · last frost Apr 9
Updated