Skip to content

USDA Hardiness Zone 7a

Frost Dates for 28768 — Pisgah Forest, North Carolina

NOAA 1991–2020 normals from Pisgah Forest 3 NE, NC (2,190 ft), 2 miles east.

Updated

In Pisgah Forest, the last spring frost (32°F) is around April 19 in half of years and has passed by May 8 in nine years out of ten. The first fall frost comes around October 23, as early as October 9 one year in ten, leaving a typical freeze-free season of 186 days (NOAA, Pisgah Forest 3 NE, NC).

Last spring frost
April 19

50% probability

First fall frost
October 23

50% probability

Growing season
186 days

freeze-free, 50%

Hardiness zone
7a

0 to 5°F (-17.8 to -15.0°C) coldest night

First snow
January 16

median, 1991–2020

Last snow
February 10

median, 1991–2020

Winters with snow
88%

21 of 24 observed

Snow per year
6.7"

NOAA normal

Frost risk by date in Pisgah Forest

Half of springs at Pisgah Forest 3 NE, NC see their last 32°F night by April 19; only one in ten is past it by April 2, and one in ten still has one after May 8. Planting tender crops after April 26 leaves a 30% risk of a frost on them, after May 1 20%, and after May 8 10%. The 19 days between the even-odds date and the one-in-ten date is wider than at 90% of the 173 North Carolina stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 23 in half of years, as early as October 9 one year in ten, and holds off past November 4 one year in ten. A hard freeze of 28°F follows 9 days later, around November 1; in spring the one-in-ten date for 28°F is April 23, 15 days before the 32°F one. The freeze-free season lasts 186 days in a typical year, shorter than at 86% of the 173 North Carolina stations; it reaches 208 days one year in ten and falls short of 162 one year in ten. On average 118 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 13 days longer, to about May 2, and return around October 13. Severe cold of 16°F or below comes in 99% of winters, usually between December 17 and February 15.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FApr 16Apr 21Apr 25Apr 30May 2May 5May 8May 11May 15
32°FApr 2Apr 9Apr 13Apr 16Apr 19Apr 23Apr 26May 1May 8
28°FMar 17Mar 23Mar 28Mar 31Apr 3Apr 7Apr 12Apr 16Apr 23
24°FFeb 28Mar 8Mar 14Mar 18Mar 21Mar 25Mar 29Apr 1Apr 6
20°FFeb 7Feb 15Feb 24Mar 1Mar 6Mar 11Mar 15Mar 19Mar 25
16°F99% of yrsJan 18Jan 30Feb 3Feb 8Feb 15Feb 24Mar 2Mar 8Mar 16
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 1Oct 5Oct 8Oct 10Oct 13Oct 16Oct 19Oct 22Oct 26
32°FOct 9Oct 14Oct 17Oct 20Oct 23Oct 26Oct 28Nov 1Nov 4
28°FOct 18Oct 23Oct 27Oct 30Nov 1Nov 3Nov 6Nov 10Nov 16
24°FOct 29Nov 1Nov 5Nov 9Nov 12Nov 16Nov 21Nov 26Dec 1
20°FNov 8Nov 14Nov 18Nov 24Nov 28Dec 1Dec 6Dec 12Dec 23
16°F99% of yrsNov 21Dec 1Dec 5Dec 10Dec 17Dec 24Dec 31Jan 5Jan 15

Freeze probabilities 1991–2020 at Pisgah Forest 3 NE, 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 28768 →Compare Pisgah Forest with another place →

Weather by month in Pisgah Forest

July is the warmest month at Pisgah Forest 3 NE, NC, averaging 84°F by day and 62°F at night; January is the coldest at 49°F and 26°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 89% of years and May still brings one in 22% of years.

Warmth for growing adds up to 3,469 growing degree days a year (base 50°F), fewer than at 87% of the 173 North Carolina stations. 36% of them (1,259) have built up by the end of June, and July adds the most, 718. Precipitation totals 65.1 inches a year, most in August (6.2") and least in October (4.9"); May to September bring 43% of it.

Monthly normals 1991–2020 at Pisgah Forest 3 NE, NC
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan49265.9100%2411
Feb53285.0100%2215
Mar60345.3100%1764
Apr69415.389%7183
May75505.122%1396
Jun81585.50%0591
Jul84625.70%0718
Aug83616.20%0687
Sep78555.42%<1501
Oct70434.979%6234
Nov61335.0100%1953
Dec52285.8100%2318

Monthly normals 1991–2020 at Pisgah Forest 3 NE, NC (2,190 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, Brevard, NC, 5 miles southwest of Pisgah Forest, has a last frost 2 days later (April 21), the same first-frost date, a season 1 day shorter.

Frost dates for 28712 (Brevard) →

When it snows in Pisgah Forest, North Carolina

The first measurable snow (0.1 inch or more) in Pisgah Forest usually arrives around January 16, and the last of the season around February 10. Those are the middle dates across the winters of 1991–2020 at Pisgah Forest 3 NE, NC, 1.5 miles away: half of years saw snow earlier, half later. Snow fell in 88% of those winters. The last 32°F night of spring typically comes 68 days after the last snow.

Planting calendar for 28768

What to do and when, from the 50% frost dates for Pisgah Forest, North Carolina
WhenWhat to do
February 8 – February 22Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 22 – March 8Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 22 – April 5Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 19 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by July 31Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 9Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 23 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 28768 is 2 miles from Pisgah Forest 3 NE, NC, which stands at 2,190 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 28768 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°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 7a places in North Carolina