Gallup, NM planting zone & frost dates

Gallup is in USDA hardiness zone 6a. The last spring frost usually comes around May 11 and the first fall frost around October 7, for a growing season of about 148 days.

USDA hardiness zone6aavg. extreme winter low -10°F to -5°F
Average last spring frostMay 1190% chance of no frost after May 26
Average first fall frostOctober 710% chance of frost by September 27
Growing season148 daysfrost-free days in an average year

Planting calendar for Gallup

Dates are counted from the average last spring frost (May 11) using the typical timing recommended by U.S. extension services. Warm-season crops go out only after the danger of frost has passed and the soil has warmed.

CropWhen
TomatoesStart seeds indoors: Mar 16 – Mar 30
Transplant outdoors: May 18 – May 25
PeppersStart seeds indoors: Mar 2 – Mar 16
Transplant outdoors: May 25 – Jun 1
EggplantStart seeds indoors: Mar 2 – Mar 16
Transplant outdoors: May 25 – Jun 1
BroccoliStart seeds indoors: Mar 2 – Mar 16
Transplant outdoors: Apr 13 – Apr 27
CabbageStart seeds indoors: Mar 2 – Mar 16
Transplant outdoors: Apr 13 – Apr 27
Onions (sets)Plant outdoors: Apr 13 – Apr 27
PeasSow outdoors: Mar 30 – Apr 13
SpinachSow outdoors: Mar 30 – Apr 13
LettuceSow outdoors: Apr 13 – Apr 27
CarrotsSow outdoors: Apr 13 – Apr 27
PotatoesPlant outdoors: Apr 13 – Apr 27
BeansSow outdoors: May 18 – May 25
Sweet cornSow outdoors: May 18 – May 25
CucumbersSow outdoors: May 18 – May 25
Squash & zucchiniSow outdoors: May 18 – May 25
BasilStart seeds indoors: Mar 30 – Apr 13
Transplant outdoors: May 18 – May 25

Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Aug 12 (8 weeks before the average first fall frost on Oct 7).

Frost risk in detail

90% chance50% chance10% chance
Last 32°F frost in spring is afterApr 30May 11May 26
First 32°F frost in fall is beforeOct 20Oct 7Sep 27

How to read it: in spring there is a 10% chance of a frost after May 26, so that is a safe date for tender plants. In fall there is a 10% chance of frost before September 27. A hard freeze (28°F) usually ends around April 29.

Hardiness zone by ZIP code in Gallup

Nearby cities

All cities in New Mexico → · Other zone 6a cities →

Questions

What growing zone is Gallup, NM?

Gallup is in USDA Plant Hardiness Zone 6a (average extreme winter low -10°F to -5°F), according to the USDA 2023 map.

When is the last frost in Gallup?

The average last spring frost (32°F) in Gallup is May 11. There is still a 10% chance of frost until May 26.

When can I plant tomatoes in Gallup?

Transplant tomatoes outdoors 1–2 weeks after the average last frost: around May 18 – May 25. Start seeds indoors 6–8 weeks before the last frost.

Frost dates: NOAA U.S. Climate Normals 1991–2020, station Gallup Sand & Gravel, NM (USC00293428), 3.6 km (2.2 mi) from the city center, elevation 2005 m, based on 15 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.