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USDA Hardiness Zone 7a

Frost Dates for 28743 — Hot Springs, North Carolina

NOAA 1991–2020 normals from Hot Springs, NC (1,345 ft), 5 miles north.

Updated

In Hot Springs, the last spring frost (32°F) is around April 11 in half of years and has passed by April 27 in nine years out of ten. The first fall frost comes around October 29, as early as October 16 one year in ten, leaving a typical freeze-free season of 201 days (NOAA, Hot Springs, NC).

Last spring frost
April 11

50% probability

First fall frost
October 29

50% probability

Growing season
201 days

freeze-free, 50%

Hardiness zone
7a

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

First snow
December 25

median, 1991–2020

Last snow
March 1

median, 1991–2020

Winters with snow
86%

24 of 28 observed

Snow per year
6.1"

NOAA normal

Frost risk by date in Hot Springs

Half of springs at Hot Springs, NC see their last 32°F night by April 11; only one in ten is past it by March 25, and one in ten still has one after April 27. Planting tender crops after April 18 leaves a 30% risk of a frost on them, after April 22 20%, and after April 27 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 35% of the 173 North Carolina stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 29 in half of years, as early as October 16 one year in ten, and holds off past November 10 one year in ten. A hard freeze of 28°F follows 9 days later, around November 7; in spring the one-in-ten date for 28°F is April 15, 12 days before the 32°F one. The freeze-free season lasts 201 days in a typical year, shorter than at 72% of the 173 North Carolina stations; it reaches 225 days one year in ten and falls short of 181 one year in ten. On average 82 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 April 24, and return around October 21. Severe cold of 16°F or below comes in 96% of winters, usually between December 26 and February 9.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FApr 8Apr 13Apr 18Apr 21Apr 24Apr 28May 1May 5May 10
32°FMar 25Mar 31Apr 4Apr 8Apr 11Apr 15Apr 18Apr 22Apr 27
28°FMar 8Mar 16Mar 21Mar 25Mar 29Apr 1Apr 5Apr 9Apr 15
24°FFeb 21Mar 1Mar 7Mar 12Mar 16Mar 20Mar 25Mar 31Apr 4
20°FJan 30Feb 8Feb 15Feb 25Mar 1Mar 6Mar 11Mar 17Mar 24
16°F96% of yrsJan 11Jan 24Jan 31Feb 4Feb 9Feb 16Feb 23Mar 1Mar 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 13Oct 16Oct 18Oct 21Oct 23Oct 26Oct 28Nov 1
32°FOct 16Oct 20Oct 23Oct 26Oct 29Nov 1Nov 3Nov 6Nov 10
28°FOct 24Oct 30Nov 1Nov 4Nov 7Nov 10Nov 13Nov 17Nov 24
24°FNov 5Nov 9Nov 12Nov 16Nov 19Nov 24Nov 28Dec 2Dec 9
20°FNov 15Nov 22Nov 26Nov 30Dec 4Dec 9Dec 16Dec 24Jan 1
16°F96% of yrsNov 27Dec 4Dec 11Dec 18Dec 26Dec 31Jan 4Jan 11Jan 22

Freeze probabilities 1991–2020 at Hot Springs, 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 28743 →Compare Hot Springs with another place →

Weather by month in Hot Springs

July is the warmest month at Hot Springs, NC, averaging 87°F by day and 65°F at night; January is the coldest at 48°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 77% of years.

Warmth for growing adds up to 4,224 growing degree days a year (base 50°F), fewer than at 70% of the 173 North Carolina stations. 37% of them (1,579) have built up by the end of June, and July adds the most, 815. Precipitation totals 46.7 inches a year, most in June (5.2") and least in October (2.4"); May to September bring 49% of it.

Monthly normals 1991–2020 at Hot Springs, NC
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan48293.7100%2020
Feb52313.3100%1627
Mar60374.099%11100
Apr71443.877%3256
May78544.56%0489
Jun84625.20%0687
Jul87654.70%0815
Aug86654.90%0789
Sep82593.40%0611
Oct72472.458%2310
Nov60362.999%1289
Dec52323.9100%1732

Monthly normals 1991–2020 at Hot Springs, NC (1,345 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, Marshall, NC, 11 miles east of Hot Springs and 575 feet higher, has a last frost 17 days later (April 28), a first frost 11 days earlier (October 18), a season 28 days shorter.

Frost dates for 28787 (Weaverville) →

When it snows in Hot Springs, North Carolina

The first measurable snow (0.1 inch or more) in Hot Springs usually arrives around December 25, and the last of the season around March 1. Those are the middle dates across the winters of 1991–2020 at Hot Springs, NC, 4.5 miles away: half of years saw snow earlier, half later. Snow fell in 86% of those winters. The last 32°F night of spring typically comes 41 days after the last snow.

Planting calendar for 28743

What to do and when, from the 50% frost dates for Hot Springs, North Carolina
WhenWhat to do
January 31 – February 14Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 14 – February 28Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 14 – March 28Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 11 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 6Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 15Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 29 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 28743 is 5 miles from Hot Springs, NC, which stands at 1,345 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 28743 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.

Other zone 7a places in North Carolina