Atmore, AL planting zone & frost dates

Atmore is in USDA hardiness zone 9a. The last spring frost usually comes around February 28 and the first fall frost around November 27, for a growing season of about 270 days.

USDA hardiness zone9aavg. extreme winter low 20°F to 25°F
Average last spring frostFebruary 2890% chance of no frost after March 21
Average first fall frostNovember 2710% chance of frost by November 8
Growing season270 daysfrost-free days in an average year

Planting calendar for Atmore

Dates are counted from the average last spring frost (February 28) 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: Jan 3 – Jan 17
Transplant outdoors: Mar 7 – Mar 14
PeppersStart seeds indoors: Dec 20 – Jan 3
Transplant outdoors: Mar 14 – Mar 21
EggplantStart seeds indoors: Dec 20 – Jan 3
Transplant outdoors: Mar 14 – Mar 21
BroccoliStart seeds indoors: Dec 20 – Jan 3
Transplant outdoors: Jan 31 – Feb 14
CabbageStart seeds indoors: Dec 20 – Jan 3
Transplant outdoors: Jan 31 – Feb 14
Onions (sets)Plant outdoors: Jan 31 – Feb 14
PeasSow outdoors: Jan 17 – Jan 31
SpinachSow outdoors: Jan 17 – Jan 31
LettuceSow outdoors: Jan 31 – Feb 14
CarrotsSow outdoors: Jan 31 – Feb 14
PotatoesPlant outdoors: Jan 31 – Feb 14
BeansSow outdoors: Mar 7 – Mar 14
Sweet cornSow outdoors: Mar 7 – Mar 14
CucumbersSow outdoors: Mar 7 – Mar 14
Squash & zucchiniSow outdoors: Mar 7 – Mar 14
BasilStart seeds indoors: Jan 17 – Jan 31
Transplant outdoors: Mar 7 – Mar 14

Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Oct 2 (8 weeks before the average first fall frost on Nov 27).

Useful for zone 9a gardens

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Frost risk in detail

90% chance50% chance10% chance
Last 32°F frost in spring is afterFeb 1Feb 28Mar 21
First 32°F frost in fall is beforeDec 24Nov 27Nov 8

How to read it: in spring there is a 10% chance of a frost after March 21, so that is a safe date for tender plants. In fall there is a 10% chance of frost before November 8. A hard freeze (28°F) usually ends around February 12.

Hardiness zone by ZIP code in Atmore

Nearby cities

All cities in Alabama → · Other zone 9a cities →

Questions

What growing zone is Atmore, AL?

Atmore is in USDA Plant Hardiness Zone 9a (average extreme winter low 20°F to 25°F), according to the USDA 2023 map. Some ZIP codes of the city fall in zone 8b.

When is the last frost in Atmore?

The average last spring frost (32°F) in Atmore is February 28. There is still a 10% chance of frost until March 21.

When can I plant tomatoes in Atmore?

Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Mar 7 – Mar 14. Start seeds indoors 6–8 weeks before the last frost.

Frost dates: NOAA U.S. Climate Normals 1991–2020, station Atmore, AL (USC00010402), 18.3 km (11.4 mi) from the city center, elevation 91 m, based on 28 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.