Pacifica 4 SSE, CA Frost Dates & Growing Season

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

Last spring frost
Jan 11
~50% chance of frost after
First fall frost
Jan 10
~50% chance of frost before
Growing season
364 days
frost-free stretch
USDA zone
≈ 10b
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Dec 23 Jan 11 Feb 12
First fall frost Feb 5 Jan 10 Dec 22

Computed from NOAA 1991–2020 climate normals at the PACIFICA 4 SSE 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 Pacifica 4 SSE

Computed from Pacifica 4 SSE's own frost dates. Click any crop for the full zone-10 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Nov 16 – Nov 30 Jan 18 – Jan 25
🫑 Peppers Nov 2 – Nov 16 Jan 25 – Feb 1
🥬 Lettuce Nov 30 – Dec 14 Dec 14 – Dec 28 Dec 14 – Jan 11
🫛 Peas Nov 30 – Dec 14
🥕 Carrots Dec 21 – Jan 11
🥦 Broccoli Nov 23 – Dec 7 Dec 21 – Jan 4
🥬 Kale Nov 30 – Dec 14 Dec 14 – Dec 28 Dec 14 – Dec 28
🥒 Cucumbers Dec 14 – Dec 21 Jan 18 – Jan 25 Jan 18 – Jan 25
🥒 Zucchini Dec 14 – Dec 21 Jan 18 – Jan 25 Jan 18 – Jan 25
🫘 Green Beans (Bush) Jan 18 – Jan 25
🌽 Sweet Corn Jan 18 – Jan 25
🌿 Basil Nov 30 – Dec 14 Jan 18 – Jan 25 Jan 25 – Feb 1
🧄 Garlic Fall: Nov 29 – Dec 27

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 Pacifica 4 SSE's dates automatically after a lookup.

Reading the season in Pacifica 4 SSE

With roughly 364 frost-free days, Pacifica 4 SSE 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 10 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in Pacifica 4 SSE, CA?

The average last spring frost in Pacifica 4 SSE is around Jan 11, 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 Pacifica 4 SSE, CA?

The average first fall frost in Pacifica 4 SSE arrives around Jan 10. 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 Pacifica 4 SSE?

About 364 frost-free days on average, from Jan 11 to Jan 10. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is Pacifica 4 SSE in?

USDA zone 10b 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.