Skip to content

USDA Hardiness Zone 8a

Frost Dates for 27214 — Browns Summit, North Carolina

NOAA 1991–2020 normals from Greensboro Wtp, NC (765 ft), 10 miles southwest.

Updated

In Browns Summit, the last spring frost (32°F) is around April 1 in half of years and has passed by April 14 in nine years out of ten. The first fall frost comes around November 4, as early as October 23 one year in ten, leaving a typical freeze-free season of 217 days (NOAA, Greensboro Wtp, NC).

Last spring frost
April 1

50% probability

First fall frost
November 4

50% probability

Growing season
217 days

freeze-free, 50%

Hardiness zone
8a

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

First snow
January 9

median, 1991–2020

Last snow
February 21

median, 1991–2020

Winters with snow
93%

28 of 30 observed

Snow per year
7.1"

NOAA normal

Frost risk by date in Browns Summit

Half of springs at Greensboro Wtp, NC see their last 32°F night by April 1; only one in ten is past it by March 18, and one in ten still has one after April 14. Planting tender crops after April 5 leaves a 30% risk of a frost on them, after April 9 20%, and after April 14 10%. The 13 days between the even-odds date and the one-in-ten date is narrower than at 92% of the 173 North Carolina stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 4 in half of years, as early as October 23 one year in ten, and holds off past November 19 one year in ten. A hard freeze of 28°F follows 11 days later, around November 15; in spring the one-in-ten date for 28°F is April 5, 9 days before the 32°F one. The freeze-free season lasts 217 days in a typical year, shorter than at 50% of the 173 North Carolina stations; it reaches 239 days one year in ten and falls short of 197 one year in ten. On average 63 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 12, and return around October 27. Severe cold of 16°F or below comes in 92% of winters, usually between January 5 and February 5.

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

Freeze probabilities 1991–2020 at Greensboro Wtp, NC, 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 27214 →Compare Browns Summit with another place →

Weather by month in Browns Summit

July is the warmest month at Greensboro Wtp, NC, averaging 89°F by day and 71°F at night; January is the coldest at 50°F and 30°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 51% of years.

Warmth for growing adds up to 4,649 growing degree days a year (base 50°F), more than at 50% of the 173 North Carolina stations. 39% of them (1,815) have built up by the end of June, and July adds the most, 916. Precipitation totals 45.9 inches a year, most in July (5.8") and least in February (2.6"); May to September bring 50% of it.

Monthly normals 1991–2020 at Greensboro Wtp, NC
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan50303.2100%1920
Feb54332.6100%1442
Mar62393.799%7127
Apr71483.651%1308
May79583.30%0566
Jun85655.10%0752
Jul89715.80%0916
Aug87684.50%0848
Sep81614.40%0627
Oct71493.233%<1328
Nov61393.198%686
Dec53333.499%1530

Monthly normals 1991–2020 at Greensboro Wtp, NC (765 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, Reidsville 2 NW, NC, 12 miles north of Browns Summit, has a last frost 4 days later (April 5), a first frost 2 days earlier (November 2), a season 4 days shorter.

Frost dates for 27320 (Reidsville) →

When it snows in Browns Summit, North Carolina

The first measurable snow (0.1 inch or more) in Browns Summit usually arrives around January 9, and the last of the season around February 21. Those are the middle dates across the winters of 1991–2020 at Piedmont Triad International Airport, NC, 15.6 miles away: half of years saw snow earlier, half later. Snow fell in 93% of those winters. The last 32°F night of spring typically comes 39 days after the last snow.

Planting calendar for 27214

What to do and when, from the 50% frost dates for Browns Summit, North Carolina
WhenWhat to do
January 21 – February 4Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 4 – February 18Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 4 – March 18Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 1 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 12Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 21Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 4 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 27214 is 10 miles from Greensboro Wtp, NC, which stands at 765 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 9 other ZIP codes share the station; its figures are presented in full for 27406 (Greensboro). The 2023 USDA Plant Hardiness Zone Map lists ZIP 27214 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 North 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 North Carolina