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USDA Hardiness Zone 8b

Frost Dates for 29137 — Salley, South Carolina

NOAA 1991–2020 normals from Wagener 1SW, SC (380 ft), 4 miles northwest.

Updated

In Salley, the last spring frost (32°F) is around March 26 in half of years and has passed by April 10 in nine years out of ten. The first fall frost comes around November 9, as early as October 27 one year in ten, leaving a typical freeze-free season of 230 days (NOAA, Wagener 1SW, SC).

Last spring frost
March 26

50% probability

First fall frost
November 9

50% probability

Growing season
230 days

freeze-free, 50%

Hardiness zone
8b

15 to 20°F (-9.4 to -6.7°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
22%

5 of 23 observed

Snow per year
—

NOAA normal

Frost risk by date in Salley

Half of springs at Wagener 1SW, SC see their last 32°F night by March 26; only one in ten is past it by March 7, and one in ten still has one after April 10. Planting tender crops after April 1 leaves a 30% risk of a frost on them, after April 5 20%, and after April 10 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 9 in half of years, as early as October 27 one year in ten, and holds off past November 27 one year in ten. A hard freeze of 28°F follows 14 days later, around November 23; in spring the one-in-ten date for 28°F is March 30, 11 days before the 32°F one. The freeze-free season lasts 230 days in a typical year, shorter than at 51% of the 105 South Carolina stations; it reaches 256 days one year in ten and falls short of 208 one year in ten. On average 45 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 11 days longer, to about April 6, and return around November 1. Nights of 24°F, cold enough to damage hardier plants, come in 99% of winters and 16°F in 55%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 21Mar 27Mar 31Apr 3Apr 6Apr 9Apr 13Apr 17Apr 23
32°FMar 7Mar 14Mar 18Mar 22Mar 26Mar 29Apr 1Apr 5Apr 10
28°FFeb 15Feb 24Mar 1Mar 7Mar 12Mar 16Mar 21Mar 25Mar 30
24°F99% of yrsJan 21Jan 31Feb 7Feb 15Feb 22Feb 28Mar 6Mar 13Mar 19
20°F88% of yrsJan 1Jan 14Jan 21Jan 28Jan 31Feb 5Feb 15Feb 27Mar 8
16°F55% of yrsDec 31Jan 8Jan 13Jan 19Jan 24Jan 30Feb 2Feb 9Feb 25
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 23Oct 26Oct 30Nov 1Nov 3Nov 5Nov 8Nov 13
32°FOct 27Nov 1Nov 3Nov 6Nov 9Nov 12Nov 15Nov 20Nov 27
28°FNov 5Nov 10Nov 14Nov 18Nov 23Nov 27Dec 1Dec 6Dec 16
24°F99% of yrsNov 19Nov 27Dec 2Dec 6Dec 12Dec 20Dec 26Jan 1Jan 9
20°F88% of yrsDec 5Dec 12Dec 21Dec 28Jan 1Jan 6Jan 11Jan 17Jan 30
16°F55% of yrsDec 17Dec 28Jan 2Jan 6Jan 10Jan 14Jan 19Jan 29Feb 8

Freeze probabilities 1991–2020 at Wagener 1SW, 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 29137 →Compare Salley with another place →

Compared with the next station

The nearest other station, Pelion 0.8 NW, SC, 13 miles north of Salley, has a last frost 2 days later (March 28), a first frost 5 days earlier (November 4), a season 9 days shorter.

Frost dates for 29123 (Pelion) →

When it snows in Salley, South Carolina

Measurable snow is rare here: only 5 of 23 winters from 1991 to 2020 recorded 0.1 inch or more at Pelion 0.8 NW, SC, 12.8 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 29137

What to do and when, from the 50% frost dates for Salley, South Carolina
WhenWhat to do
January 15 – January 29Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 29 – February 12Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 26 – March 12Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 26 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 17Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 26Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 9 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 29137 is 4 miles from Wagener 1SW, SC, which stands at 380 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 29164 (Wagener). The 2023 USDA Plant Hardiness Zone Map lists ZIP 29137 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°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 8b places in South Carolina