Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for Mc Cormick, SC

Mc Cormick, SC is in USDA zones 8a to 8b across its 2 ZIP codes. The median last spring frost is March 28 and the first fall frost November 7.

Mc Cormick on the zone map

Outlined: its 2 ZIP code areas · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zones8a–8b10 to 20 °F
ZIP codes2
Last frostMar 28
First frostNov 7
Growing season226 days

8a 1 ZIP   8b 1 ZIP

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Mc Cormick, SC…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Mc Cormick, SC

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 28median — 50% chance of a later frost
Safe for tender plantsApril 13only 10% chance of frost after
First fall frostNovember 7median — 10% chance by Oct 25
Growing season226 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 16 and returns around November 20.

From the NOAA station Mccormick, SC, elevation 509 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in Mc Cormick

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 14 – Feb 28
SpinachSow outdoors · Feb 14 – Mar 7
Broccoli, cabbageStart indoors · Jan 17 – Jan 31
Broccoli, cabbageTransplant · Mar 7 – Mar 21
Onion setsPlant outdoors · Feb 28 – Mar 14
PotatoesPlant outdoors · Mar 7 – Mar 21
LettuceSow outdoors · Feb 28 – Mar 14
Carrots, beetsSow outdoors · Mar 7 – Mar 21
TomatoesStart indoors · Jan 31 – Feb 14
TomatoesTransplant · Apr 4 – Apr 18
Peppers, eggplantStart indoors · Jan 17 – Jan 31
Peppers, eggplantTransplant · Apr 11 – Apr 25
BeansSow outdoors · Apr 4 – Apr 18
Sweet cornSow outdoors · Apr 4 – Apr 18
Cucumbers, squashSow outdoors · Apr 4 – Apr 18
Fall lettuce, spinachSow outdoors · Sep 12 – Sep 26
GarlicPlant cloves · Oct 24 – Nov 28
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 28) and first fall frost (Nov 7) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 29899 came on Feb 14 — 5 days later than the 1991–2020 average (Feb 9).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Native plants for zone 8a in South Carolina

550 plants native to the lower 48 states, recorded in South Carolina, and rated by the USDA to survive 10 °F or colder — the bottom of zone 8a. Each links to its USDA PLANTS profile.

Trees 82

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican beech80 ft · blooms mid spring · low shade tolerance · to −44 °FAmerican chestnut115 ft · blooms early summer · high shade tolerance · to −33 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °Farborvitae50 ft · blooms mid spring · medium shade tolerance · to −33 °F

Shrubs 126

Allegheny serviceberry35 ft · blooms early spring · low shade tolerance · to −38 °Faloe yucca15 ft · blooms early summer · medium shade tolerance · to −1 °Falternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °FAmerican beautyberry6 ft · blooms early summer · medium shade tolerance · to −8 °FAmerican hazelnut10 ft · blooms spring · medium shade tolerance · to −33 °FAmerican holly40 ft · blooms mid spring · low shade tolerance · to −20 °F

Wildflowers & perennials 163

American bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican lotus3 ft · blooms mid summer · high shade tolerance · to −36 °FAmerican pokeweed7 ft · blooms mid summer · low shade tolerance · to −33 °FAmerican speedwell0.8 ft · blooms mid summer · low shade tolerance · to −38 °FAmerican spongeplant0.5 ft · blooms mid spring · high shade tolerance · to −24 °F

Grasses 158

alkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °FAmerican beachgrass2.5 ft · blooms spring · high shade tolerance · to −28 °FAmerican cupscale3 ft · blooms early summer · high shade tolerance · to −18 °FAtlantic mannagrass3 ft · blooms summer · low shade tolerance · to −8 °Fautumn bluegrass1.5 ft · blooms late spring · medium shade tolerance · to −8 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °F

Vines 12

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °FAmerican wisteria50 ft · blooms spring · low shade tolerance · to −3 °Fcupseed30 ft · blooms late spring · low shade tolerance · to −3 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °Fgraybark grape50 ft · blooms late spring · medium shade tolerance · to −8 °F

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Mc Cormick, SC.

Soil in Mc Cormick, SC

The soil mapped at the center of ZIP 29899 is Herndon — silt loam, well drained.

TextureSilt loama good balance for most vegetables
pH4.5strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.75%low — add compost
Hydrologic groupBwater soaks in moderately
Farmland classprime farmlandUSDA classification

Map unit: Herndon silt loam, 2 to 6 percent slopes.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 29899; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Mc Cormick, SC

Summer high92 °Faverage high, July
Winter low33 °Faverage low, January
Hot days79days a year at 90 °F or more
Freezing nights58nights a year at 32 °F or less
Growing degree days5,330base 50 °F — the season’s usable heat
Longest day14 h 25 mindaylight on June 21
Shortest day9 h 53 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation47.3 inper year, rain and melted snow

Average high and low, by month

20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 56 °F, low 33 °F 56°33° JanFebruary: average high 59 °F, low 34 °F 59°34° FebMarch: average high 67 °F, low 40 °F 67°40° MarApril: average high 75 °F, low 48 °F 75°48° AprMay: average high 83 °F, low 57 °F 83°57° MayJune: average high 89 °F, low 66 °F 89°66° JunJuly: average high 92 °F, low 70 °F 92°70° JulAugust: average high 91 °F, low 69 °F 91°69° AugSeptember: average high 86 °F, low 63 °F 86°63° SepOctober: average high 76 °F, low 51 °F 76°51° OctNovember: average high 65 °F, low 40 °F 65°40° NovDecember: average high 57 °F, low 35 °F 57°35° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 4.16 in precipitation 4.2 JanFebruary: 3.96 in precipitation 4.0 FebMarch: 4.49 in precipitation 4.5 MarApril: 3.23 in precipitation 3.2 AprMay: 3.23 in precipitation 3.2 MayJune: 4.62 in precipitation 4.6 JunJuly: 4.49 in precipitation 4.5 JulAugust: 4.45 in precipitation 4.5 AugSeptember: 3.63 in precipitation 3.6 SepOctober: 3.11 in precipitation 3.1 OctNovember: 3.62 in precipitation 3.6 NovDecember: 4.30 in precipitation 4.3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Mccormick, SC (2 mi away); precipitation: Mccormick, SC (2 mi away). Daylight is calculated from latitude.

ZIP codes in Mc Cormick

298358b
15 to 20 °F
298998a
10 to 15 °F

South Carolina planting zones →

Questions about Mc Cormick

What planting zone is Mc Cormick, SC?

Mc Cormick, SC is in USDA hardiness zones 8a to 8b on the 2023 map (8a: 10 to 15 °F; 8b: 15 to 20 °F).

When is the last frost in Mc Cormick, SC?

The median last spring frost is March 28 and the median first fall frost is November 7 (NOAA 1991–2020 normals, Mccormick station).

When can I plant a garden in Mc Cormick, SC?

Cool-season crops like peas and spinach go in around Feb 14 – Mar 7; tomatoes, peppers, beans and squash after about Apr 4, once frost risk has passed.

What kind of onions grow in Mc Cormick, SC?

Intermediate onions: the longest day is 14 h 25 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

How much rain and snow does Mc Cormick, SC get?

About 47.3 inches of precipitation a year (NOAA 1991–2020 normals).