USDA Hardiness Zone 8a
Frost Dates for 29108 — Newberry, South Carolina
NOAA 1991–2020 normals from Newberry, SC (513 ft), under a mile north.
Updated
In Newberry, the last spring frost (32°F) is around March 31 in half of years and has passed by April 15 in nine years out of ten. The first fall frost comes around November 7, as early as October 26 one year in ten, leaving a typical freeze-free season of 223 days (NOAA, Newberry, SC).
- Last spring frost
- March 31
- First fall frost
- November 7
- Growing season
- 223 days
- Hardiness zone
- 8a
50% probability
50% probability
freeze-free, 50%
10 to 15°F (-12.2 to -9.4°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 35%
- Snow per year
- —
median, 1991–2020
median, 1991–2020
6 of 17 observed
NOAA normal
Frost risk by date in Newberry
Half of springs at Newberry, SC see their last 32°F night by March 31; only one in ten is past it by March 12, and one in ten still has one after April 15. Planting tender crops after April 5 leaves a 30% risk of a frost on them, after April 9 20%, and after April 15 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 66% of the 105 South Carolina stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 7 in half of years, as early as October 26 one year in ten, and holds off past November 24 one year in ten. A hard freeze of 28°F follows 13 days later, around November 20; in spring the one-in-ten date for 28°F is April 4, 11 days before the 32°F one. The freeze-free season lasts 223 days in a typical year, shorter than at 70% of the 105 South Carolina stations; it reaches 247 days one year in ten and falls short of 202 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 9 days longer, to about April 9, and return around October 28. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 76%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 26 | Apr 1 | Apr 4 | Apr 6 | Apr 9 | Apr 12 | Apr 15 | Apr 18 | Apr 23 |
| 32°F | Mar 12 | Mar 18 | Mar 23 | Mar 28 | Mar 31 | Apr 2 | Apr 5 | Apr 9 | Apr 15 |
| 28°F | Feb 24 | Mar 3 | Mar 10 | Mar 14 | Mar 18 | Mar 23 | Mar 27 | Mar 30 | Apr 4 |
| 24°F | Feb 6 | Feb 15 | Feb 21 | Feb 28 | Mar 5 | Mar 10 | Mar 15 | Mar 21 | Mar 27 |
| 20°F96% of yrs | Jan 15 | Jan 26 | Jan 31 | Feb 6 | Feb 12 | Feb 18 | Feb 27 | Mar 4 | Mar 14 |
| 16°F76% of yrs | Jan 2 | Jan 12 | Jan 18 | Jan 26 | Jan 30 | Feb 2 | Feb 7 | Feb 15 | Feb 28 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 15 | Oct 20 | Oct 23 | Oct 26 | Oct 28 | Oct 31 | Nov 1 | Nov 5 | Nov 9 |
| 32°F | Oct 26 | Oct 31 | Nov 1 | Nov 4 | Nov 7 | Nov 10 | Nov 13 | Nov 17 | Nov 24 |
| 28°F | Nov 4 | Nov 8 | Nov 12 | Nov 16 | Nov 20 | Nov 25 | Dec 1 | Dec 5 | Dec 12 |
| 24°F | Nov 13 | Nov 21 | Nov 28 | Dec 2 | Dec 5 | Dec 10 | Dec 18 | Dec 27 | Jan 4 |
| 20°F96% of yrs | Dec 1 | Dec 5 | Dec 12 | Dec 20 | Dec 28 | Jan 1 | Jan 5 | Jan 12 | Jan 22 |
| 16°F76% of yrs | Dec 11 | Dec 22 | Dec 30 | Jan 2 | Jan 8 | Jan 12 | Jan 18 | Jan 26 | Feb 4 |
Freeze probabilities 1991–2020 at Newberry, 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 29108 →Compare Newberry with another place →
Weather by month in Newberry
July is the warmest month at Newberry, SC, averaging 91°F by day and 70°F at night; January is the coldest at 54°F and 31°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 46% of years.
Warmth for growing adds up to 5,149 growing degree days a year (base 50°F), fewer than at 67% of the 105 South Carolina stations. 39% of them (2,029) have built up by the end of June, and July adds the most, 950.
| Month | High °F | Low °F | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|
| Jan | 54 | 31 | 100% | 18 | 38 |
| Feb | 58 | 34 | 99% | 13 | 57 |
| Mar | 65 | 40 | 94% | 9 | 154 |
| Apr | 74 | 49 | 46% | 1 | 349 |
| May | 82 | 58 | 0% | 0 | 612 |
| Jun | 88 | 66 | 0% | 0 | 819 |
| Jul | 91 | 70 | 0% | 0 | 950 |
| Aug | 89 | 69 | 0% | 0 | 894 |
| Sep | 84 | 62 | 0% | 0 | 699 |
| Oct | 75 | 50 | 23% | 1 | 392 |
| Nov | 64 | 40 | 92% | 7 | 130 |
| Dec | 57 | 34 | 99% | 15 | 56 |
Monthly normals 1991–2020 at Newberry, SC (513 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, Little Mountain, SC, 13 miles southeast of Newberry and 198 feet higher, has a last frost 9 days earlier (March 22), a first frost 4 days later (November 11), a season 11 days longer.
When it snows in Newberry, South Carolina
Measurable snow is rare here: only 6 of 17 winters from 1991 to 2020 recorded 0.1 inch or more at Newberry, SC, 0.7 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 29108
| When | What to do |
|---|---|
| January 20 – February 3 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 3 – February 17 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 3 – March 17 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 31 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 15 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 24 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 7 onward | Plant 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 29108 is under a mile from Newberry, SC, which stands at 513 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 29108 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.