Havelock, NC planting zone & frost dates

Havelock is in USDA hardiness zone 8b. The last spring frost usually comes around March 19 and the first fall frost around November 22, for a growing season of about 249 days.

USDA hardiness zone8bavg. extreme winter low 15°F to 20°F
Average last spring frostMarch 1990% chance of no frost after April 4
Average first fall frostNovember 2210% chance of frost by November 5
Growing season249 daysfrost-free days in an average year

Planting calendar for Havelock

Dates are counted from the average last spring frost (March 19) 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 22 – Feb 5
Transplant outdoors: Mar 26 – Apr 2
PeppersStart seeds indoors: Jan 8 – Jan 22
Transplant outdoors: Apr 2 – Apr 9
EggplantStart seeds indoors: Jan 8 – Jan 22
Transplant outdoors: Apr 2 – Apr 9
BroccoliStart seeds indoors: Jan 8 – Jan 22
Transplant outdoors: Feb 19 – Mar 5
CabbageStart seeds indoors: Jan 8 – Jan 22
Transplant outdoors: Feb 19 – Mar 5
Onions (sets)Plant outdoors: Feb 19 – Mar 5
PeasSow outdoors: Feb 5 – Feb 19
SpinachSow outdoors: Feb 5 – Feb 19
LettuceSow outdoors: Feb 19 – Mar 5
CarrotsSow outdoors: Feb 19 – Mar 5
PotatoesPlant outdoors: Feb 19 – Mar 5
BeansSow outdoors: Mar 26 – Apr 2
Sweet cornSow outdoors: Mar 26 – Apr 2
CucumbersSow outdoors: Mar 26 – Apr 2
Squash & zucchiniSow outdoors: Mar 26 – Apr 2
BasilStart seeds indoors: Feb 5 – Feb 19
Transplant outdoors: Mar 26 – Apr 2

Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Sep 27 (8 weeks before the average first fall frost on Nov 22).

Useful for zone 8b gardens

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Frost risk in detail

90% chance50% chance10% chance
Last 32°F frost in spring is afterFeb 26Mar 19Apr 4
First 32°F frost in fall is beforeDec 12Nov 22Nov 5

How to read it: in spring there is a 10% chance of a frost after April 4, so that is a safe date for tender plants. In fall there is a 10% chance of frost before November 5. A hard freeze (28°F) usually ends around March 3.

Hardiness zone by ZIP code in Havelock

Nearby cities

All cities in North Carolina → · Other zone 8b cities →

Questions

What growing zone is Havelock, NC?

Havelock is in USDA Plant Hardiness Zone 8b (average extreme winter low 15°F to 20°F), according to the USDA 2023 map.

When is the last frost in Havelock?

The average last spring frost (32°F) in Havelock is March 19. There is still a 10% chance of frost until April 4.

When can I plant tomatoes in Havelock?

Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Mar 26 – Apr 2. Start seeds indoors 6–8 weeks before the last frost.

Frost dates: NOAA U.S. Climate Normals 1991–2020, station Cherry Point Mcas, NC (USW00013754), 2.9 km (1.8 mi) from the city center, elevation 9 m, based on 25 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.