Saint Simons Island, GA frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 8 a year). Cover tender plants when frost is forecast.
How Saint Simons Island compares
- In a typical year, frost nights in Saint Simons Island fall between December 26 and February 9. In 1 year in 10 the first frost comes as early as November 30, or the last frost as late as March 6.
- Nearby Savannah, GA, 91 km away, has a regular frost season (last frost Mar 2), a reminder of how much elevation and distance from the coast matter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 11 |
| 50% (median) | February 9 |
| 10% (safe for tender plants) | March 6 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 30 |
| 50% (median) | December 26 |
| 90% (late) | January 19 |
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 Saint Simons Island, GA
Saint Simons Island, GA frost dates — last frost Feb 9, first frost Dec 26, zone 9a. whenisthelastfrost.com
In mild climates, summer heat limits many crops as much as frost does. Use this calendar for spring planting and lean on fall and winter for cool-season crops.
When to plant vegetables in Saint Simons Island, GA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 17 – Dec 1 | Jan 12 – Jan 26 | — | — |
| Peppers | Dec 1 – Dec 15 | Feb 23 – Mar 9 | — | — |
| Eggplant | Dec 1 – Dec 15 | Feb 23 – Mar 9 | — | — |
| Tomatoes | Dec 15 – Dec 29 | Feb 16 – Mar 2 | — | — |
| Lettuce | Dec 15 – Dec 29 | Jan 19 – Feb 2 | Jan 12 – Feb 16 | Oct 31 – Nov 28 |
| Kale | Dec 15 – Dec 29 | Jan 12 – Jan 26 | Jan 12 – Jan 26 | Oct 17 – Nov 7 |
| Broccoli | Dec 15 – Dec 29 | Jan 26 – Feb 9 | — | Sep 19 – Oct 10 |
| Cabbage | Dec 15 – Dec 29 | Jan 19 – Feb 2 | — | Sep 19 – Oct 10 |
| Cauliflower | Dec 15 – Dec 29 | Jan 26 – Feb 9 | — | Sep 19 – Oct 10 |
| Okra | Dec 29 – Jan 12 | Mar 2 – Mar 16 | Mar 2 – Mar 16 | — |
| Basil | Dec 29 – Jan 12 | Feb 16 – Mar 2 | — | — |
| Peas | — | — | Dec 29 – Jan 19 | Oct 3 – Oct 24 |
| Spinach | — | — | Dec 29 – Jan 19 | Oct 31 – Nov 21 |
| Radishes | — | — | Jan 5 – Feb 16 | Nov 14 – Dec 5 |
| Cucumbers | Jan 12 – Jan 19 | Feb 23 – Mar 2 | Feb 16 – Mar 2 | Oct 10 – Oct 24 |
| Zucchini & Summer Squash | Jan 12 – Jan 19 | — | Feb 16 – Mar 2 | Oct 17 – Oct 31 |
| Winter Squash & Pumpkins | Jan 12 – Jan 19 | — | Feb 16 – Mar 2 | — |
| Melons & Watermelon | Jan 12 – Jan 19 | Feb 23 – Mar 9 | — | — |
| Carrots | — | — | Jan 19 – Feb 16 | Oct 3 – Oct 17 |
| Beets | — | — | Jan 19 – Feb 16 | Oct 17 – Oct 31 |
| Potatoes | — | — | Jan 19 – Feb 9 | — |
| Swiss Chard | — | — | Jan 26 – Feb 23 | Oct 17 – Oct 31 |
| Cilantro | — | — | Jan 26 – Feb 16 | Oct 31 – Nov 21 |
| Green Beans | — | — | Feb 16 – Mar 9 | Oct 10 – Oct 24 |
| Sweet Corn | — | — | Feb 16 – Mar 2 | — |
| Sweet Potatoes | — | Feb 23 – Mar 16 | — | — |
| Garlic | — | — | — | Dec 12 – Jan 16 |
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 Brunswick Malcolm Mckinnon Ap, GA weather station, 9 km away (elevation 16 ft (5 m)).
Frost dates near Saint Simons Island
- Sea Island Feb 9 · Dec 26
- Brunswick Feb 8 · Dec 25
- Jekyll Island Feb 9 · Dec 26
- Darien Feb 20 · Dec 19
- Sapelo Island Feb 20 · Dec 19
- Meridian Feb 20 · Dec 19
- Waverly Feb 8 · Dec 25
- Crescent Feb 20 · Dec 19
- Townsend Feb 20 · Dec 19
- Waynesville Mar 25 · Nov 15
Frequently asked questions
When is the last frost in Saint Simons Island, GA?
The median last spring frost in Saint Simons Island, GA is February 9. There is still about a 10% chance of frost after March 6, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Saint Simons Island, GA?
The median first fall frost is December 26, with about a 10% chance of frost before November 30.
How long is the growing season in Saint Simons Island, GA?
About 320 days between the median last spring frost and first fall frost.
What planting zone is Saint Simons Island, GA?
Saint Simons Island, GA is in USDA hardiness zone 9a.