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USDA hardiness zone lookup

Farmington, NM — USDA Zone 6b

Farmington, New Mexico · 170-day growing season

Frost dates and growing season in Farmington

USDA hardiness zoneZone 6b
Average last spring frostApril 28
Average first fall frostOctober 15
Growing season length~170 days
Temperature range (F)-10 to 0°F
Temperature range (C)-23 to -18°C

All of Farmington's mapped ZIP codes fall in the same hardiness band, Zone 6b.

These are 50%-probability averages modeled from Farmington's USDA hardiness zone and regional climate normals — not a single-station reading. In a typical year the last spring frost will have passed by April 28, but a colder-than-average year can run 1-2 weeks later. Plant tender crops (tomatoes, peppers, basil) once both soil and night temperatures are consistently warm — a thermometer beats the calendar.

Growing season in Farmington

Farmington, New Mexico sits in USDA Zone 6b, with roughly 170 frost-free days between an average last spring frost around April 28 and a first fall frost around October 15. That is a standard temperate season — most common vegetables finish comfortably, and a single main planting plus one succession round works well.

What grows in Farmington

Farmington falls in USDA Zone 6b, so the same hardiness constraints apply as the full Zone 6 guide. Vegetables, herbs, and fruit trees rated to Zone 6b (or hardier) will overwinter here in a typical year.

What to plant in Farmington this week

Farmington is in high summer — most spring plantings are in. Keep an eye on watering and start planning your fall crop. Cool-season seedlings (broccoli, cabbage, lettuce) can be started indoors for a fall transplant.

Full planting calendar for Farmington

Crop-by-crop sowing, transplant, and harvest dates calibrated to zone 6 averages:

ZIP codes in Farmington

Drill down to the precise frost window and planting calendar for a specific ZIP in Farmington:

Local microclimate notes

Zone tables give you the average — but Farmingtongardens vary. South-facing walls and paved areas can run a full half-zone warmer than the published rating. Low-lying spots, frost pockets, and shaded north sides can run colder. If you've gardened here a few seasons, your own frost record — the last time you actually got frost damage — beats any national average.

Source and methodology

Hardiness zone from the USDA Plant Hardiness Zone Map (2023 revision). Frost-date and growing-season figures are modeled from Farmington's USDA hardiness zone and regional NOAA 1991-2020 climate normals — zone-level estimates, not a per-station record, so treat them as planning guidance and confirm against your own local frost history. Crop recommendations draw on US Cooperative Extension references, curated by the Growli editorial team. Last reviewed June 2026.

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