Laveen 3 SSE, AZ Frost Dates & Growing Season

The two dates every Laveen 3 SSE garden is planned around, plus ready-computed planting windows for the most popular crops.

Last spring frost
Jan 14
~50% chance of frost after
First fall frost
Dec 22
~50% chance of frost before
Growing season
342 days
frost-free stretch
USDA zone
≈ 9b
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Dec 19 Jan 14 Feb 12
First fall frost Jan 22 Dec 22 Dec 1
Hard freeze (28°F), median last Jan 5 · first Jan 2

Computed from NOAA 1991–2020 climate normals at the LAVEEN 3 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 Laveen 3 SSE

Computed from Laveen 3 SSE's own frost dates. Click any crop for the full zone-9 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Nov 19 – Dec 3 Jan 21 – Jan 28
🫑 Peppers Nov 5 – Nov 19 Jan 28 – Feb 4
🥬 Lettuce Dec 3 – Dec 17 Dec 17 – Dec 31 Dec 17 – Jan 14
🫛 Peas Dec 3 – Dec 17
🥕 Carrots Dec 24 – Jan 14
🥦 Broccoli Nov 26 – Dec 10 Dec 24 – Jan 7
🥬 Kale Dec 3 – Dec 17 Dec 17 – Dec 31 Dec 17 – Dec 31
🥒 Cucumbers Dec 17 – Dec 24 Jan 21 – Jan 28 Jan 21 – Jan 28
🥒 Zucchini Dec 17 – Dec 24 Jan 21 – Jan 28 Jan 21 – Jan 28
🫘 Green Beans (Bush) Jan 21 – Jan 28
🌽 Sweet Corn Jan 21 – Jan 28
🌿 Basil Dec 3 – Dec 17 Jan 21 – Jan 28 Jan 28 – Feb 4
🧄 Garlic Fall: Nov 10 – Dec 8

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 Laveen 3 SSE's dates automatically after a lookup.

Reading the season in Laveen 3 SSE

With roughly 342 frost-free days, Laveen 3 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 Dec 22 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in Laveen 3 SSE, AZ?

The average last spring frost in Laveen 3 SSE is around Jan 14, 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 Laveen 3 SSE, AZ?

The average first fall frost in Laveen 3 SSE arrives around Dec 22. 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 Laveen 3 SSE?

About 342 frost-free days on average, from Jan 14 to Dec 22. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is Laveen 3 SSE in?

USDA zone 9b 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.