Last frost date in Chesterfield, Missouri
April 4
Average last frost in spring. In an early year (1 in 10) it's over by March 20; in a late year (1 in 10) it comes after April 21.
October 29
Average first frost in fall. 1 year in 10 it comes by October 15.
Source: NOAA U.S. Climate Normals 1991–2020, station St Charles 7 Ssw (USC00237398), 3.4 miles from Chesterfield, elevation 450 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Ballwin, Creve Coeur, Manchester, Maryland Heights and Town and Country, so their frost dates are the same as Chesterfield's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Mar 20 | Apr 4 | Apr 21 |
| First frost in fall | Oct 15 | Oct 29 | Nov 11 |
Frost-free days in an average year: 206
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 16 | Oct 19 |
| Frost (32°F) | Every year | Apr 4 | Oct 29 |
| Hard freeze (28°F) | Every year | Mar 25 | Nov 8 |
Nights at 32°F or colder in an average year: 106
What to plant now in Chesterfield
- 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 March 30 Chesterfield: April 4
- Fall planting calendar for an average first frost around October 30 Chesterfield: October 29
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 Missouri
- Wildwood 7 mi · last frost Apr 12
- St. Peters 9 mi · last frost Apr 9
- St. Charles 10 mi · last frost Apr 8
- O'Fallon 12 mi · last frost Apr 10
- Florissant 17 mi · last frost Apr 2
Updated