Johnsonville, SC frost dates
How Johnsonville compares
- In 8 years out of 10, the last spring frost in Johnsonville falls between March 2 and April 7, a 36-day window. The first fall frost falls between November 1 and December 5.
- The median last frost is 2 days earlier than the South Carolina median of Mar 25.
- Its 237-day growing season is longer than 67% of the 375 South Carolina places with a regular frost season (state median 228 days).
- The last frost is 7 days later than the zone 8b median of Mar 16. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 8b chart.
- The weather station records an average of 52 nights a year at or below 32°F.
- Compared with Mount Pleasant, SC, 115 km away, the last frost here is 10 days later than there and the growing season is 25 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 2 |
| 50% (median) | March 23 |
| 10% (safe for tender plants) | April 7 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 1 |
| 50% (median) | November 15 |
| 90% (late) | December 5 |
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 Johnsonville, SC
Johnsonville, SC frost dates — last frost Mar 23, first frost Nov 15, zone 8b. whenisthelastfrost.com
When to plant vegetables in Johnsonville, SC
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 29 – Jan 12 | Feb 23 – Mar 9 | — | — |
| Peppers | Jan 12 – Jan 26 | Apr 6 – Apr 20 | — | — |
| Eggplant | Jan 12 – Jan 26 | Apr 6 – Apr 20 | — | — |
| Tomatoes | Jan 26 – Feb 9 | Mar 30 – Apr 13 | — | — |
| Lettuce | Jan 26 – Feb 9 | Mar 2 – Mar 16 | Feb 23 – Mar 30 | Sep 20 – Oct 18 |
| Kale | Jan 26 – Feb 9 | Feb 23 – Mar 9 | Feb 23 – Mar 9 | Sep 6 – Sep 27 |
| Broccoli | Jan 26 – Feb 9 | Mar 9 – Mar 23 | — | Aug 9 – Aug 30 |
| Cabbage | Jan 26 – Feb 9 | Mar 2 – Mar 16 | — | Aug 9 – Aug 30 |
| Cauliflower | Jan 26 – Feb 9 | Mar 9 – Mar 23 | — | Aug 9 – Aug 30 |
| Okra | Feb 9 – Feb 23 | Apr 13 – Apr 27 | Apr 13 – Apr 27 | — |
| Basil | Feb 9 – Feb 23 | Mar 30 – Apr 13 | — | — |
| Peas | — | — | Feb 9 – Mar 2 | Aug 23 – Sep 13 |
| Spinach | — | — | Feb 9 – Mar 2 | Sep 20 – Oct 11 |
| Radishes | — | — | Feb 16 – Mar 30 | Oct 4 – Oct 25 |
| Cucumbers | Feb 23 – Mar 2 | Apr 6 – Apr 13 | Mar 30 – Apr 13 | Aug 30 – Sep 13 |
| Zucchini & Summer Squash | Feb 23 – Mar 2 | — | Mar 30 – Apr 13 | Sep 6 – Sep 20 |
| Winter Squash & Pumpkins | Feb 23 – Mar 2 | — | Mar 30 – Apr 13 | — |
| Melons & Watermelon | Feb 23 – Mar 2 | Apr 6 – Apr 20 | — | — |
| Carrots | — | — | Mar 2 – Mar 30 | Aug 23 – Sep 6 |
| Beets | — | — | Mar 2 – Mar 30 | Sep 6 – Sep 20 |
| Potatoes | — | — | Mar 2 – Mar 23 | — |
| Swiss Chard | — | — | Mar 9 – Apr 6 | Sep 6 – Sep 20 |
| Cilantro | — | — | Mar 9 – Mar 30 | Sep 20 – Oct 11 |
| Green Beans | — | — | Mar 30 – Apr 20 | Aug 30 – Sep 13 |
| Sweet Corn | — | — | Mar 30 – Apr 13 | — |
| Sweet Potatoes | — | Apr 6 – Apr 27 | — | — |
| Garlic | — | — | — | Nov 1 – Dec 6 |
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 Hemingway 8 Ese, SC weather station, 19 km away (elevation 39 ft (12 m)).
Frost dates near Johnsonville
- Hemingway Mar 23 · Nov 15
- Gresham Mar 23 · Nov 15
- Nesmith Mar 23 · Nov 15
- Pamplico Mar 20 · Nov 13
- Lake City Mar 20 · Nov 13
- Centenary Mar 22 · Nov 11
- Scranton Mar 20 · Nov 13
- Coward Mar 20 · Nov 13
- Kingstree Mar 29 · Nov 6
- Aynor Mar 15 · Nov 22
Frequently asked questions
When is the last frost in Johnsonville, SC?
The median last spring frost in Johnsonville, SC is March 23. There is still about a 10% chance of frost after April 7, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Johnsonville, SC?
The median first fall frost is November 15, with about a 10% chance of frost before November 1.
How long is the growing season in Johnsonville, SC?
About 237 days between the median last spring frost and first fall frost.
What planting zone is Johnsonville, SC?
Johnsonville, SC is in USDA hardiness zone 8b.