Skip to content

USDA Hardiness Zone 8a

Frost Dates for 29620 — Abbeville, South Carolina

NOAA 1991–2020 normals from Calhoun Falls, SC (530 ft), 12 miles southwest.

Updated

In Abbeville, the last spring frost (32°F) is around March 27 in half of years and has passed by April 11 in nine years out of ten. The first fall frost comes around November 7, as early as October 26 one year in ten, leaving a typical freeze-free season of 226 days (NOAA, Calhoun Falls, SC).

Last spring frost
March 27

50% probability

First fall frost
November 7

50% probability

Growing season
226 days

freeze-free, 50%

Hardiness zone
8a

10 to 15°F (-12.2 to -9.4°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
21%

5 of 24 observed

Snow per year
0.6"

NOAA normal

Frost risk by date in Abbeville

Half of springs at Calhoun Falls, SC see their last 32°F night by March 27; only one in ten is past it by March 8, and one in ten still has one after April 11. Planting tender crops after April 1 leaves a 30% risk of a frost on them, after April 5 20%, and after April 11 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 66% of the 105 South Carolina stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 7 in half of years, as early as October 26 one year in ten, and holds off past November 24 one year in ten. A hard freeze of 28°F follows 15 days later, around November 22; in spring the one-in-ten date for 28°F is March 30, 12 days before the 32°F one. The freeze-free season lasts 226 days in a typical year, shorter than at 62% of the 105 South Carolina stations; it reaches 250 days one year in ten and falls short of 205 one year in ten. On average 60 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 10 days longer, to about April 6, and return around October 30. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 58%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 21Mar 28Mar 31Apr 3Apr 6Apr 9Apr 12Apr 16Apr 21
32°FMar 8Mar 16Mar 19Mar 23Mar 27Mar 29Apr 1Apr 5Apr 11
28°FFeb 16Feb 26Mar 2Mar 7Mar 13Mar 17Mar 21Mar 26Mar 30
24°FJan 25Feb 3Feb 11Feb 18Feb 25Mar 1Mar 5Mar 11Mar 18
20°F92% of yrsJan 4Jan 17Jan 25Jan 31Feb 4Feb 10Feb 19Feb 28Mar 7
16°F58% of yrsDec 31Jan 8Jan 15Jan 19Jan 25Jan 30Feb 3Feb 9Feb 26
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 17Oct 22Oct 25Oct 27Oct 30Nov 1Nov 3Nov 6Nov 11
32°FOct 26Oct 31Nov 2Nov 5Nov 7Nov 10Nov 14Nov 18Nov 24
28°FNov 5Nov 10Nov 15Nov 18Nov 22Nov 26Dec 1Dec 6Dec 15
24°FNov 17Nov 25Dec 1Dec 4Dec 8Dec 16Dec 25Jan 1Jan 9
20°F92% of yrsDec 1Dec 10Dec 20Dec 27Jan 1Jan 5Jan 11Jan 18Feb 2
16°F58% of yrsDec 21Dec 29Jan 2Jan 7Jan 13Jan 17Jan 23Jan 29Feb 10

Freeze probabilities 1991–2020 at Calhoun Falls, SC, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.

Frost risk on any date in 29620 →Compare Abbeville with another place →

Weather by month in Abbeville

July is the warmest month at Calhoun Falls, SC, averaging 91°F by day and 71°F at night; January is the coldest at 54°F and 32°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 32% of years.

Warmth for growing adds up to 5,189 growing degree days a year (base 50°F), fewer than at 63% of the 105 South Carolina stations. 39% of them (2,034) have built up by the end of June, and July adds the most, 959. Precipitation totals 46.9 inches a year, most in December (4.7") and least in April (3.1"); May to September bring 42% of it.

Monthly normals 1991–2020 at Calhoun Falls, SC
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan54324.1100%1737
Feb58354.199%1254
Mar66404.592%7166
Apr74493.132%<1350
May81583.30%0609
Jun88674.40%0817
Jul91714.20%0959
Aug90694.10%0913
Sep84633.50%0703
Oct75503.321%1395
Nov65403.694%8133
Dec57344.798%1551

Monthly normals 1991–2020 at Calhoun Falls, SC (530 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.

Compared with the next station

The nearest other station, Greenwood, SC, 14 miles east of Abbeville, has a last frost 1 day earlier (March 26), a first frost 5 days later (November 12), a season 7 days longer.

Frost dates for 29646 (Greenwood) →

When it snows in Abbeville, South Carolina

Measurable snow is rare here: only 5 of 24 winters from 1991 to 2020 recorded 0.1 inch or more at Calhoun Falls, SC, 12.2 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 29620

What to do and when, from the 50% frost dates for Abbeville, South Carolina
WhenWhat to do
January 16 – January 30Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 30 – February 13Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 27 – March 13Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 27 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 15Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 24Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 7 onwardPlant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter.

The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.

Where these figures come from

ZIP 29620 is 12 miles from Calhoun Falls, SC, which stands at 530 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 29620 in zone 8a, the band where the coldest night of the year averaged 10 to 15°F (-12.2 to -9.4°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across South Carolina →

Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.

Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.

ZIP codes measured at the same station

Other zone 8a places in South Carolina