US Grow Zones

Charlotte, North Carolina: planting zone & frost dates

Last updated · Sources: PRISM/OSU 2023 ZIP zone listings; NOAA NCEI 1991–2020 Climate Normals (station USW00013881); U.S. Census Bureau — see methodology

Charlotte is in USDA plant hardiness zone 8a, where the average coldest winter night reaches 10 to 15°F (-12.2 to -9.4°C). The typical last spring frost is around Apr 5 and the first fall frost around Oct 30.

Hardiness zone8A10 to 15°F
Last spring frostApr 530% chance of frost after
First fall frostOct 3030% chance of frost before
Growing season221 daysmedian frost-free days

Frost dates

ProbabilityLast spring frost (32°F)First fall frost (32°F)
Safer (10% risk)Apr 14Oct 22
Typical planning date (30% risk)Apr 5Oct 30
Median (50%)Mar 30Nov 3

How to read this: after the spring "10% risk" date, a 32°F frost happens in only about 1 year in 10. In fall, the "10% risk" date is the early end — a frost before it happens about 1 year in 10.

Frost data comes from NOAA station CHARLOTTE DOUGLAS AP, NC (USW00013881), 7.1 mi (11.4 km) from the city center and 52 ft higher than the city center (+16 m). Record used for the 1991–2020 normals: 28 years.

Frost probability in spring and fall, Charlotte, NCChance of a 32°F frost in Charlotte, NC, NOAA 1991–2020. Spring: the chance of another frost falls from 90% on Mar 12 to 10% on Apr 14. Fall: the chance that the first frost has arrived rises from 10% on Oct 22 to 90% on Nov 17.0%50%100%Spring: later frostMar 1Mar 15Apr 1Apr 1530%: Apr 5Fall: frost arrivedOct 15Nov 1Nov 15Dec 130%: Oct 3032°F frost28°F hard freezeplanning date
Shaded areas show the chance of a 32°F frost: falling through spring, rising through fall. The dashed line is the 28°F hard-freeze curve. Data: NOAA 1991–2020 Normals, station USW00013881.
Frost-free growing season in Charlotte, NC1 in 10 risk: Apr 14 to Oct 22 (191 days); 3 in 10 risk: Apr 5 to Oct 30 (208 days); Median (50%): Mar 30 to Nov 3 (218 days); No 28°F freeze: Mar 17 to Nov 14 (242 days). In 9 of 10 years the 32°F-free season is at least 201 days.Frost-free days, spring to fallJFMAMJJASOND1 in 10 risk191 days3 in 10 risk208 daysMedian (50%)218 daysNo 28°F freeze242 days
Frost-free window at three risk levels, plus the window between 28°F hard freezes. Read about what the probabilities mean.

Why your yard may differ from the station: microclimates.

Hardiness zone across Charlotte

All 30 ZIP codes covering Charlotte are in zone 8a.

ZIP codes in Charlotte and their zones
ZIPZoneShare of city land
282698a9.1%
282778a7.3%
282738a7.0%
282158a6.8%
282088a6.6%
282168a6.3%
282148a6.2%
282628a5.4%
282268a4.7%
282178a4.6%
282138a4.0%
282708a4.0%
282108a3.9%
282058a3.8%
282118a3.6%
282128a3.0%
282788a2.6%
282068a2.3%
282278a2.3%
282098a1.8%
281058a1.2%
282038a1.0%
282078a0.8%
282028a0.6%
282048a0.6%
282238a0.2%
282448a0.0%
282748a0.0%
282808a0.0%
282828a0.0%

Vegetable planting calendar for Charlotte

Dates are counted from the 30%-risk frost dates above (last frost Apr 5, first frost Oct 30). Shift a week later in cold spots or low-lying ground.

CropStart indoorsTransplant / plant outDirect sowFall crop sow/plant
TomatoFeb 8 – Feb 22Apr 12 – Apr 26——
PepperJan 25 – Feb 8Apr 19 – May 3——
LettuceFeb 22 – Mar 8Mar 22 – Apr 12Mar 8 – Apr 19Aug 21 – Sep 18
Green Beans——Apr 12 – May 17Aug 7 – Aug 21
Sweet Corn——Apr 12 – May 10—
Zucchini & Summer SquashMar 8 – Mar 15Apr 12 – Apr 26Apr 12 – May 3Aug 7 – Aug 21
CucumberMar 8 – Mar 15Apr 19 – Apr 26Apr 12 – May 3Aug 7 – Aug 21
Carrot——Mar 15 – Apr 19Aug 7 – Aug 21
OnionJan 11 – Jan 25Mar 8 – Mar 22——
Potato—Mar 8 – Mar 29——
BasilFeb 22 – Mar 8Apr 19 – May 3Apr 19 – May 10—
Spinach——Feb 22 – Mar 22Sep 4 – Oct 2
KaleFeb 8 – Feb 22Mar 8 – Mar 29Mar 8 – Mar 29Aug 21 – Sep 18
BroccoliFeb 8 – Feb 22Mar 22 – Apr 12—Aug 7 – Aug 21
Peas——Feb 22 – Mar 15Aug 21 – Sep 4
EggplantJan 25 – Feb 8Apr 19 – May 3——
CabbageFeb 8 – Feb 22Mar 8 – Mar 22—Aug 7 – Aug 21
Radish——Mar 1 – Apr 19Sep 18 – Oct 16
Strawberry—Mar 8 – Mar 29——
Beets——Mar 15 – Apr 26Aug 21 – Sep 4

Nearby cities in North Carolina

More: all North Carolina cities · other zone 8a cities: Memphis, TN, Atlanta, GA, Raleigh, NC, Greensboro, NC, Durham, NC, Winston-Salem, NC, Chesapeake, VA, Huntsville, AL

Charlotte gardening questions

When is the last frost in Charlotte, NC?

Plan around Apr 5. At NOAA's Charlotte Douglas Airport, NC station, 7.1 mi from the city center, there is a 30% chance of a 32°F frost after that date. Half of springs have their last frost by Mar 30, and after Apr 14 the risk drops to about 1 in 10. A hard freeze (28°F) usually ends earlier, around Mar 17. The 90% and 10% dates are 33 days apart, close to the 36-day median for cities on this site.

When should I plant tomatoes in Charlotte, NC?

Start seeds indoors Feb 8 – Feb 22 and set transplants outside Apr 12 – Apr 26, once nights stay above 50°F and the soil is near 60°F. That leaves 208 days between the 30% frost dates, enough for most varieties including 80–85-day slicers. More: tomato planting dates by zone.

How long is the growing season in Charlotte?

About 221 days without a 32°F frost in a typical (median) year. In 9 years out of 10 the season lasts at least 201 days, and in 1 year in 10 it runs 244 days or more. In fall there is a 10% chance of frost by Oct 22 and a 30% chance by Oct 30. That ranks 8th longest of 13 North Carolina cities on this site.

When should I plant a fall garden in Charlotte?

Count back from the first fall frost (Oct 30): transplant broccoli Aug 7 – Aug 21; sow kale Aug 21 – Sep 18; sow lettuce Aug 21 – Sep 18; sow radishes Sep 18 – Oct 16. Hardy crops keep growing through light frosts; the median 28°F hard freeze here is Nov 14. How the math works: succession and fall planting.

Did Charlotte's hardiness zone change on the 2023 map?

Yes. Most of Charlotte was zone 7b on the 2012 map and is zone 8a on the 2023 map — half a zone warmer, like about 56% of U.S. ZIP codes. The shift comes from a newer 1991–2020 averaging period plus more weather stations and better mapping; it does not mean last frost comes earlier. Why the 2023 map is warmer.

How does Charlotte compare with Concord, NC?

Both are in zone 8a. The typical last spring frost in Charlotte (Apr 5) comes about the same time as in Concord, NC (Apr 6), 17 miles away, and the first fall frost is Oct 30 versus Oct 28. The two cities use different NOAA stations.