Trenton, SC frost dates
Last spring frostMar 26median date
First fall frostNov 8median date
Growing season227 daysfrost-free
Hardiness zone8aZone 8a
How Trenton compares
- In 8 years out of 10, the last spring frost in Trenton falls between March 6 and April 11, a 36-day window. The first fall frost falls between October 25 and November 28.
- The median last frost is 1 day later than the South Carolina median of Mar 25.
- Its 227-day growing season is longer than 43% of the 375 South Carolina places with a regular frost season (state median 228 days).
- The last frost is typical for zone 8a, where the median is Mar 29.
- The weather station records an average of 66 nights a year at or below 32°F.
- Compared with Columbia, SC, 86 km away, the last frost here is 10 days later than there and the growing season is 18 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 6 |
| 50% (median) | March 26 |
| 10% (safe for tender plants) | April 11 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 25 |
| 50% (median) | November 8 |
| 90% (late) | November 28 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Trenton, SC
Trenton, SC frost dates — last frost Mar 26, first frost Nov 8, zone 8a. whenisthelastfrost.com
Crop
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Start indoors: Jan 1 to Jan 15Transplant outside: Feb 26 to Mar 12
Start indoors: Jan 15 to Jan 29Transplant outside: Apr 9 to Apr 23
Start indoors: Jan 15 to Jan 29Transplant outside: Apr 9 to Apr 23
Start indoors: Jan 29 to Feb 12Transplant outside: Apr 2 to Apr 16
Start indoors: Jan 29 to Feb 12Transplant outside: Mar 5 to Mar 19Sow outdoors: Feb 26 to Apr 2Plant for fall: Sep 13 to Oct 11
Start indoors: Jan 29 to Feb 12Transplant outside: Feb 26 to Mar 12Sow outdoors: Feb 26 to Mar 12Plant for fall: Aug 30 to Sep 20
Start indoors: Jan 29 to Feb 12Transplant outside: Mar 12 to Mar 26Plant for fall: Aug 2 to Aug 23
Start indoors: Jan 29 to Feb 12Transplant outside: Mar 5 to Mar 19Plant for fall: Aug 2 to Aug 23
Start indoors: Jan 29 to Feb 12Transplant outside: Mar 12 to Mar 26Plant for fall: Aug 2 to Aug 23
Start indoors: Feb 12 to Feb 26Transplant outside: Apr 16 to Apr 30Sow outdoors: Apr 16 to Apr 30
Start indoors: Feb 12 to Feb 26Transplant outside: Apr 2 to Apr 16
Sow outdoors: Feb 12 to Mar 5Plant for fall: Aug 16 to Sep 6
Sow outdoors: Feb 12 to Mar 5Plant for fall: Sep 13 to Oct 4
Sow outdoors: Feb 19 to Apr 2Plant for fall: Sep 27 to Oct 18
Start indoors: Feb 26 to Mar 5Transplant outside: Apr 9 to Apr 16Sow outdoors: Apr 2 to Apr 16Plant for fall: Aug 23 to Sep 6
Start indoors: Feb 26 to Mar 5Sow outdoors: Apr 2 to Apr 16Plant for fall: Aug 30 to Sep 13
Start indoors: Feb 26 to Mar 5Sow outdoors: Apr 2 to Apr 16
Start indoors: Feb 26 to Mar 5Transplant outside: Apr 9 to Apr 23
Sow outdoors: Mar 5 to Apr 2Plant for fall: Aug 16 to Aug 30
Sow outdoors: Mar 5 to Apr 2Plant for fall: Aug 30 to Sep 13
Sow outdoors: Mar 5 to Mar 26
Sow outdoors: Mar 12 to Apr 9Plant for fall: Aug 30 to Sep 13
Sow outdoors: Mar 12 to Apr 2Plant for fall: Sep 13 to Oct 4
Sow outdoors: Apr 2 to Apr 23Plant for fall: Aug 23 to Sep 6
Sow outdoors: Apr 2 to Apr 16
Transplant outside: Apr 9 to Apr 30
Plant for fall: Oct 25 to Nov 29
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Trenton, SC
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 1 – Jan 15 | Feb 26 – Mar 12 | — | — |
| Peppers | Jan 15 – Jan 29 | Apr 9 – Apr 23 | — | — |
| Eggplant | Jan 15 – Jan 29 | Apr 9 – Apr 23 | — | — |
| Tomatoes | Jan 29 – Feb 12 | Apr 2 – Apr 16 | — | — |
| Lettuce | Jan 29 – Feb 12 | Mar 5 – Mar 19 | Feb 26 – Apr 2 | Sep 13 – Oct 11 |
| Kale | Jan 29 – Feb 12 | Feb 26 – Mar 12 | Feb 26 – Mar 12 | Aug 30 – Sep 20 |
| Broccoli | Jan 29 – Feb 12 | Mar 12 – Mar 26 | — | Aug 2 – Aug 23 |
| Cabbage | Jan 29 – Feb 12 | Mar 5 – Mar 19 | — | Aug 2 – Aug 23 |
| Cauliflower | Jan 29 – Feb 12 | Mar 12 – Mar 26 | — | Aug 2 – Aug 23 |
| Okra | Feb 12 – Feb 26 | Apr 16 – Apr 30 | Apr 16 – Apr 30 | — |
| Basil | Feb 12 – Feb 26 | Apr 2 – Apr 16 | — | — |
| Peas | — | — | Feb 12 – Mar 5 | Aug 16 – Sep 6 |
| Spinach | — | — | Feb 12 – Mar 5 | Sep 13 – Oct 4 |
| Radishes | — | — | Feb 19 – Apr 2 | Sep 27 – Oct 18 |
| Cucumbers | Feb 26 – Mar 5 | Apr 9 – Apr 16 | Apr 2 – Apr 16 | Aug 23 – Sep 6 |
| Zucchini & Summer Squash | Feb 26 – Mar 5 | — | Apr 2 – Apr 16 | Aug 30 – Sep 13 |
| Winter Squash & Pumpkins | Feb 26 – Mar 5 | — | Apr 2 – Apr 16 | — |
| Melons & Watermelon | Feb 26 – Mar 5 | Apr 9 – Apr 23 | — | — |
| Carrots | — | — | Mar 5 – Apr 2 | Aug 16 – Aug 30 |
| Beets | — | — | Mar 5 – Apr 2 | Aug 30 – Sep 13 |
| Potatoes | — | — | Mar 5 – Mar 26 | — |
| Swiss Chard | — | — | Mar 12 – Apr 9 | Aug 30 – Sep 13 |
| Cilantro | — | — | Mar 12 – Apr 2 | Sep 13 – Oct 4 |
| Green Beans | — | — | Apr 2 – Apr 23 | Aug 23 – Sep 6 |
| Sweet Corn | — | — | Apr 2 – Apr 16 | — |
| Sweet Potatoes | — | Apr 9 – Apr 30 | — | — |
| Garlic | — | — | — | Oct 25 – Nov 29 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Johnston 4 Sw, SC weather station, 9 km away (elevation 630 ft (192 m)).
Frost dates near Trenton
- Vaucluse Apr 9 · Nov 1
- Graniteville Apr 9 · Nov 1
- Johnston Mar 26 · Nov 8
- Edgefield Mar 16 · Nov 13
- Warrenville Apr 9 · Nov 1
- North Augusta Feb 27 · Dec 4
- Langley Apr 9 · Nov 1
- Gloverville Apr 9 · Nov 1
- Bath Apr 9 · Nov 1
- Clearwater Apr 9 · Nov 1
Frequently asked questions
When is the last frost in Trenton, SC?
The median last spring frost in Trenton, SC is March 26. There is still about a 10% chance of frost after April 11, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Trenton, SC?
The median first fall frost is November 8, with about a 10% chance of frost before October 25.
How long is the growing season in Trenton, SC?
About 227 days between the median last spring frost and first fall frost.
What planting zone is Trenton, SC?
Trenton, SC is in USDA hardiness zone 8a.