Tierra Amarilla 4 N, NM Frost Dates & Growing Season

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

Last spring frost
Jun 11
~50% chance of frost after
First fall frost
Sep 20
~50% chance of frost before
Growing season
101 days
frost-free stretch
USDA zone
≈ 5b
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost May 29 Jun 11 Jun 26
First fall frost Sep 29 Sep 20 Sep 8
Hard freeze (28°F), median last May 28 · first Sep 28

Computed from NOAA 1991–2020 climate normals at the TIERRA AMARILLA 4 N 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 Tierra Amarilla 4 N

Computed from Tierra Amarilla 4 N's own frost dates. Click any crop for the full zone-5 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Apr 16 – Apr 30 Jun 18 – Jun 25
🫑 Peppers Apr 2 – Apr 16 Jun 25 – Jul 2
🥬 Lettuce Apr 30 – May 14 May 14 – May 28 May 14 – Jun 11
🫛 Peas Apr 30 – May 14
🥕 Carrots May 21 – Jun 11
🥦 Broccoli Apr 23 – May 7 May 21 – Jun 4
🥬 Kale Apr 30 – May 14 May 14 – May 28 May 14 – May 28
🥒 Cucumbers May 14 – May 21 Jun 18 – Jun 25 Jun 18 – Jun 25
🥒 Zucchini May 14 – May 21 Jun 18 – Jun 25 Jun 18 – Jun 25
🫘 Green Beans (Bush) Jun 18 – Jun 25
🌽 Sweet Corn Jun 18 – Jun 25
🌿 Basil Apr 30 – May 14 Jun 18 – Jun 25 Jun 25 – Jul 2
🧄 Garlic Fall: Aug 9 – Sep 6

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 Tierra Amarilla 4 N's dates automatically after a lookup.

Reading the season in Tierra Amarilla 4 N

At about 101 frost-free days, Tierra Amarilla 4 N rewards efficiency: start warm-season crops indoors, favor short-season varieties, and lean on cold-tolerant crops — peas, kale, roots — that shrug off the shoulder-season frosts on either end.

Frequently asked questions

When is the last frost in Tierra Amarilla 4 N, NM?

The average last spring frost in Tierra Amarilla 4 N is around Jun 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 Tierra Amarilla 4 N, NM?

The average first fall frost in Tierra Amarilla 4 N arrives around Sep 20. 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 Tierra Amarilla 4 N?

About 101 frost-free days on average, from Jun 11 to Sep 20. That favors short-season varieties and transplants for warm-season crops, with cool-season vegetables doing the heavy lifting in spring and fall.

What USDA zone is Tierra Amarilla 4 N in?

USDA zone 5b 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.