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USDA Hardiness Zone 8b

Frost Dates for 28340 — Fairmont, North Carolina

NOAA 1991–2020 normals from Lumber Rvr Sp, NC (96 ft), 9 miles southeast.

Updated

In Fairmont, the last spring frost (32°F) is around April 1 in half of years and has passed by April 16 in nine years out of ten. The first fall frost comes around November 5, as early as October 24 one year in ten, leaving a typical freeze-free season of 219 days (NOAA, Lumber Rvr Sp, NC).

Last spring frost
April 1

50% probability

First fall frost
November 5

50% probability

Growing season
219 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
12%

2 of 17 observed

Snow per year
—

NOAA normal

Frost risk by date in Fairmont

Half of springs at Lumber Rvr Sp, NC see their last 32°F night by April 1; only one in ten is past it by March 12, and one in ten still has one after April 16. Planting tender crops after April 7 leaves a 30% risk of a frost on them, after April 11 20%, and after April 16 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 57% of the 173 North Carolina stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 5 in half of years, as early as October 24 one year in ten, and holds off past November 24 one year in ten. A hard freeze of 28°F follows 12 days later, around November 17; in spring the one-in-ten date for 28°F is April 7, 9 days before the 32°F one. The freeze-free season lasts 219 days in a typical year, longer than at 52% of the 173 North Carolina stations; it reaches 244 days one year in ten and falls short of 198 one year in ten. On average 64 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 11, and return around October 28. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 74%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 27Apr 1Apr 5Apr 8Apr 11Apr 14Apr 17Apr 20Apr 24
32°FMar 12Mar 19Mar 24Mar 28Apr 1Apr 3Apr 7Apr 11Apr 16
28°FFeb 24Mar 3Mar 10Mar 15Mar 19Mar 23Mar 28Apr 1Apr 7
24°FFeb 3Feb 14Feb 20Feb 26Mar 1Mar 6Mar 11Mar 17Mar 26
20°F96% of yrsJan 11Jan 22Jan 30Feb 3Feb 11Feb 19Feb 25Mar 2Mar 12
16°F74% of yrsDec 30Jan 8Jan 14Jan 19Jan 25Jan 31Feb 5Feb 15Feb 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 15Oct 20Oct 23Oct 25Oct 28Oct 31Nov 1Nov 4Nov 9
32°FOct 24Oct 28Nov 1Nov 3Nov 5Nov 9Nov 12Nov 16Nov 24
28°FNov 2Nov 6Nov 10Nov 13Nov 17Nov 21Nov 26Dec 1Dec 6
24°FNov 12Nov 18Nov 23Nov 27Dec 1Dec 5Dec 10Dec 19Dec 28
20°F96% of yrsNov 23Dec 1Dec 7Dec 12Dec 20Dec 27Jan 1Jan 10Jan 19
16°F74% of yrsDec 9Dec 19Dec 27Dec 31Jan 4Jan 10Jan 15Jan 20Feb 1

Freeze probabilities 1991–2020 at Lumber Rvr Sp, 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 28340 →Compare Fairmont with another place →

Weather by month in Fairmont

July is the warmest month at Lumber Rvr Sp, NC, averaging 90°F by day and 69°F at night; January is the coldest at 55°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 50% of years.

Warmth for growing adds up to 5,064 growing degree days a year (base 50°F), more than at 73% of the 173 North Carolina stations. 39% of them (1,999) have built up by the end of June, and July adds the most, 907.

Monthly normals 1991–2020 at Lumber Rvr Sp, NC
MonthHigh °FLow °F32°F nightNights ≤ 32°FGDD 50°F
Jan5532100%1959
Feb5934100%1369
Mar654095%7160
Apr744750%1327
May80580%0594
Jun87660%0790
Jul90690%0907
Aug88690%0882
Sep83620%0678
Oct745029%1375
Nov664093%9146
Dec583599%1478

Monthly normals 1991–2020 at Lumber Rvr Sp, NC (96 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, Lumberton Municipal Airport, NC, 10 miles northeast of Fairmont, has a last frost 8 days earlier (March 24), a first frost 5 days later (November 10), a season 14 days longer.

Frost dates for 28372 (Pembroke) →

When it snows in Fairmont, North Carolina

Measurable snow is rare here: only 2 of 17 winters from 1991 to 2020 recorded 0.1 inch or more at Lumberton, NC, 12 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 28340

What to do and when, from the 50% frost dates for Fairmont, 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 13Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 22Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 5 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 28340 is 9 miles from Lumber Rvr Sp, NC, which stands at 96 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 28340 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 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 8b places in North Carolina