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USDA Hardiness Zone 8a

Frost Dates for 29016 — Blythewood, South Carolina

NOAA 1991–2020 normals from Cedar Creek 2E, SC (338 ft), 5 miles west.

Updated

In Blythewood, the last spring frost (32°F) is around April 10 in half of years and has passed by April 23 in nine years out of ten. The first fall frost comes around October 28, as early as October 15 one year in ten, leaving a typical freeze-free season of 201 days (NOAA, Cedar Creek 2E, SC).

Last spring frost
April 10

50% probability

First fall frost
October 28

50% probability

Growing season
201 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
18%

3 of 17 observed

Snow per year
0.8"

NOAA normal

Frost risk by date in Blythewood

Half of springs at Cedar Creek 2E, SC see their last 32°F night by April 10; only one in ten is past it by March 27, and one in ten still has one after April 23. Planting tender crops after April 15 leaves a 30% risk of a frost on them, after April 18 20%, and after April 23 10%. The 13 days between the even-odds date and the one-in-ten date is the narrowest of the 105 South Carolina stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 28 in half of years, as early as October 15 one year in ten, and holds off past November 8 one year in ten. A hard freeze of 28°F follows 8 days later, around November 5; in spring the one-in-ten date for 28°F is April 14, 9 days before the 32°F one. The freeze-free season lasts 201 days in a typical year, shorter than at 96% of the 105 South Carolina stations; it reaches 221 days one year in ten and falls short of 183 one year in ten. On average 95 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 21, and return around October 20. Severe cold of 16°F or below comes in 95% of winters, usually between December 25 and February 7.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FApr 7Apr 12Apr 15Apr 18Apr 21Apr 24Apr 27Apr 30May 4
32°FMar 27Apr 1Apr 4Apr 7Apr 10Apr 12Apr 15Apr 18Apr 23
28°FMar 9Mar 18Mar 23Mar 27Mar 31Apr 2Apr 5Apr 9Apr 14
24°FFeb 21Feb 28Mar 6Mar 12Mar 17Mar 21Mar 25Mar 29Apr 2
20°FJan 31Feb 7Feb 16Feb 23Feb 28Mar 5Mar 11Mar 16Mar 24
16°F95% of yrsJan 8Jan 20Jan 29Feb 1Feb 7Feb 13Feb 23Mar 3Mar 10
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 8Oct 12Oct 15Oct 18Oct 20Oct 22Oct 25Oct 27Nov 1
32°FOct 15Oct 20Oct 23Oct 25Oct 28Oct 30Nov 1Nov 4Nov 8
28°FOct 24Oct 28Nov 1Nov 3Nov 5Nov 8Nov 12Nov 16Nov 23
24°FNov 2Nov 7Nov 11Nov 15Nov 18Nov 22Nov 27Dec 2Dec 9
20°FNov 14Nov 20Nov 25Dec 1Dec 2Dec 6Dec 11Dec 21Jan 1
16°F95% of yrsNov 27Dec 3Dec 9Dec 17Dec 25Jan 1Jan 5Jan 12Jan 23

Freeze probabilities 1991–2020 at Cedar Creek 2E, 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 29016 →Compare Blythewood with another place →

Weather by month in Blythewood

July is the warmest month at Cedar Creek 2E, SC, averaging 90°F by day and 68°F at night; January is the coldest at 54°F and 29°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 81% of years.

Warmth for growing adds up to 4,723 growing degree days a year (base 50°F), fewer than at 90% of the 105 South Carolina stations. 38% of them (1,817) have built up by the end of June, and July adds the most, 904. Precipitation totals 45.7 inches a year, most in August (5.1") and least in April (2.9"); May to September bring 45% of it.

Monthly normals 1991–2020 at Cedar Creek 2E, SC
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan54293.9100%2237
Feb58313.5100%1844
Mar65374.098%13130
Apr74452.981%4294
May81553.50%<1547
Jun87644.10%0765
Jul90684.20%0904
Aug88685.10%0866
Sep83603.80%0649
Oct74473.364%3340
Nov64363.2100%1599
Dec56314.2100%2048

Monthly normals 1991–2020 at Cedar Creek 2E, SC (338 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, Sandhill Rsch - Elgin, SC, 8 miles southeast of Blythewood, has a last frost 19 days earlier (March 22), a first frost 18 days later (November 15), a season 38 days longer.

Frost dates for 29223 (Columbia) →

When it snows in Blythewood, South Carolina

Measurable snow is rare here: only 3 of 17 winters from 1991 to 2020 recorded 0.1 inch or more at Cedar Creek 2E, SC, 5.2 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 29016

What to do and when, from the 50% frost dates for Blythewood, South Carolina
WhenWhat to do
January 30 – February 13Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 13 – February 27Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 13 – March 27Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 10 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 5Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 14Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 28 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 29016 is 5 miles from Cedar Creek 2E, SC, which stands at 338 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 29063 (Irmo). The 2023 USDA Plant Hardiness Zone Map lists ZIP 29016 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