Summerville 4W, SC Frost Dates & Growing Season

The two dates every Summerville 4W garden is planned around, plus ready-computed planting windows for the most popular crops.

Last spring frost
Mar 22
~50% chance of frost after
First fall frost
Nov 12
~50% chance of frost before
Growing season
235 days
frost-free stretch
USDA zone
≈ 8b
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Mar 1 Mar 22 Apr 7
First fall frost Dec 3 Nov 12 Oct 29
Hard freeze (28°F), median last Mar 7 · first Nov 29

Computed from NOAA 1991–2020 climate normals at the SUMMERVILLE 4W station. "Safe" means frost past that date happens only about one year in ten. Your exact garden can still run days either way with elevation and terrain — check your own ZIP with the frost date lookup.

Planting windows for Summerville 4W

Computed from Summerville 4W's own frost dates. Click any crop for the full zone-8 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Jan 25 – Feb 8 Mar 29 – Apr 5
🫑 Peppers Jan 11 – Jan 25 Apr 5 – Apr 12
🥬 Lettuce Feb 8 – Feb 22 Feb 22 – Mar 8 Feb 22 – Mar 22
🫛 Peas Feb 8 – Feb 22
🥕 Carrots Mar 1 – Mar 22
🥦 Broccoli Feb 1 – Feb 15 Mar 1 – Mar 15
🥬 Kale Feb 8 – Feb 22 Feb 22 – Mar 8 Feb 22 – Mar 8
🥒 Cucumbers Feb 22 – Mar 1 Mar 29 – Apr 5 Mar 29 – Apr 5
🥒 Zucchini Feb 22 – Mar 1 Mar 29 – Apr 5 Mar 29 – Apr 5
🫘 Green Beans (Bush) Mar 29 – Apr 5
🌽 Sweet Corn Mar 29 – Apr 5
🌿 Basil Feb 8 – Feb 22 Mar 29 – Apr 5 Apr 5 – Apr 12
🧄 Garlic Fall: Oct 1 – Oct 29

Want this for all 50 crops, or as a printable seed-shelf schedule? Use the planting calendar and the seed starting scheduler — both can use Summerville 4W's dates automatically after a lookup.

Reading the season in Summerville 4W

With roughly 235 frost-free days, Summerville 4W gardens fit long-season crops — melons, winter squash, sweet potatoes — with room left for spring and fall rounds of greens and roots. The first frost around Nov 12 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in Summerville 4W, SC?

The average last spring frost in Summerville 4W is around Mar 22, based on 1991–2020 climate normals. That's a median — about half of years see a later frost, so tender crops are safest going out a week or two after this date.

When is the first frost in Summerville 4W, SC?

The average first fall frost in Summerville 4W arrives around Nov 12. Crops still in the garden need to mature before then, and frost-tender plants need harvesting or protection as the date approaches.

How long is the growing season in Summerville 4W?

About 235 frost-free days on average, from Mar 22 to Nov 12. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is Summerville 4W in?

USDA zone 8b on the 2023 Plant Hardiness Zone Map. Note that zones describe winter cold, not frost timing — these frost dates are the numbers to plan plantings around.