S Bay 15 S, FL Frost Dates & Growing Season

The two dates every S Bay 15 S garden is planned around, plus ready-computed planting windows for the most popular crops.

Last spring frost
Jan 18
~50% chance of frost after
First fall frost
Jan 14
~50% chance of frost before
Growing season
361 days
frost-free stretch
USDA zone
≈ 11a
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Dec 31 Jan 18 Feb 2
First fall frost Jan 31 Jan 14 Dec 27

Computed from NOAA 1991–2020 climate normals at the S BAY 15 S 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 S Bay 15 S

Computed from S Bay 15 S's own frost dates. Click any crop for the full zone-11 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Nov 23 – Dec 7 Jan 25 – Feb 1
🫑 Peppers Nov 9 – Nov 23 Feb 1 – Feb 8
🥬 Lettuce Dec 7 – Dec 21 Dec 21 – Jan 4 Dec 21 – Jan 18
🫛 Peas Dec 7 – Dec 21
🥕 Carrots Dec 28 – Jan 18
🥦 Broccoli Nov 30 – Dec 14 Dec 28 – Jan 11
🥬 Kale Dec 7 – Dec 21 Dec 21 – Jan 4 Dec 21 – Jan 4
🥒 Cucumbers Dec 21 – Dec 28 Jan 25 – Feb 1 Jan 25 – Feb 1
🥒 Zucchini Dec 21 – Dec 28 Jan 25 – Feb 1 Jan 25 – Feb 1
🫘 Green Beans (Bush) Jan 25 – Feb 1
🌽 Sweet Corn Jan 25 – Feb 1
🌿 Basil Dec 7 – Dec 21 Jan 25 – Feb 1 Feb 1 – Feb 8
🧄 Garlic Fall: Dec 3 – Dec 31

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 S Bay 15 S's dates automatically after a lookup.

Reading the season in S Bay 15 S

With roughly 361 frost-free days, S Bay 15 S 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 Jan 14 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in S Bay 15 S, FL?

The average last spring frost in S Bay 15 S is around Jan 18, 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 S Bay 15 S, FL?

The average first fall frost in S Bay 15 S arrives around Jan 14. 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 S Bay 15 S?

About 361 frost-free days on average, from Jan 18 to Jan 14. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is S Bay 15 S in?

USDA zone 11a 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.