USDA Hardiness Zone 8a
Frost Dates for 29727 — Mount Croghan, South Carolina
NOAA 1991–2020 normals from Pageland, SC (520 ft), 7 miles northwest.
Updated
In Mount Croghan, the last spring frost (32°F) is around March 27 in half of years and has passed by April 9 in nine years out of ten. The first fall frost comes around November 8, as early as October 28 one year in ten, leaving a typical freeze-free season of 228 days (NOAA, Pageland, SC).
- Last spring frost
- March 27
- First fall frost
- November 8
- Growing season
- 228 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
- 28%
- Snow per year
- —
median, 1991–2020
median, 1991–2020
5 of 18 observed
NOAA normal
Frost risk by date in Mount Croghan
Half of springs at Pageland, SC see their last 32°F night by March 27; only one in ten is past it by March 7, and one in ten still has one after April 9. Planting tender crops after April 1 leaves a 30% risk of a frost on them, after April 4 20%, and after April 9 10%. The 13 days between the even-odds date and the one-in-ten date is the narrowest of the 105 South Carolina stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 8 in half of years, as early as October 28 one year in ten, and holds off past November 26 one year in ten. A hard freeze of 28°F follows 12 days later, around November 20; in spring the one-in-ten date for 28°F is March 31, 9 days before the 32°F one. The freeze-free season lasts 228 days in a typical year, shorter than at 55% of the 105 South Carolina stations; it reaches 255 days one year in ten and falls short of 206 one year in ten. On average 50 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 6, and return around October 31. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 71%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 23 | Mar 28 | Mar 31 | Apr 3 | Apr 6 | Apr 9 | Apr 12 | Apr 15 | Apr 19 |
| 32°F | Mar 7 | Mar 15 | Mar 19 | Mar 23 | Mar 27 | Mar 29 | Apr 1 | Apr 4 | Apr 9 |
| 28°F | Feb 23 | Feb 28 | Mar 5 | Mar 10 | Mar 15 | Mar 18 | Mar 22 | Mar 27 | Mar 31 |
| 24°F | Jan 31 | Feb 10 | Feb 18 | Feb 24 | Mar 1 | Mar 4 | Mar 9 | Mar 14 | Mar 21 |
| 20°F95% of yrs | Jan 10 | Jan 21 | Jan 29 | Feb 3 | Feb 11 | Feb 19 | Feb 27 | Mar 4 | Mar 12 |
| 16°F71% of yrs | Dec 31 | Jan 8 | Jan 16 | Jan 22 | Jan 29 | Feb 3 | Feb 11 | Feb 22 | Mar 4 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 17 | Oct 23 | Oct 26 | Oct 28 | Oct 31 | Nov 2 | Nov 4 | Nov 7 | Nov 13 |
| 32°F | Oct 28 | Nov 1 | Nov 3 | Nov 5 | Nov 8 | Nov 11 | Nov 14 | Nov 18 | Nov 26 |
| 28°F | Nov 4 | Nov 8 | Nov 11 | Nov 15 | Nov 20 | Nov 24 | Nov 30 | Dec 4 | Dec 12 |
| 24°F | Nov 12 | Nov 20 | Nov 26 | Dec 1 | Dec 6 | Dec 12 | Dec 21 | Dec 30 | Jan 7 |
| 20°F95% of yrs | Nov 30 | Dec 7 | Dec 13 | Dec 22 | Dec 29 | Jan 2 | Jan 8 | Jan 15 | Jan 26 |
| 16°F71% of yrs | Dec 11 | Dec 23 | Dec 29 | Jan 5 | Jan 9 | Jan 16 | Jan 22 | Jan 30 | Feb 11 |
Freeze probabilities 1991–2020 at Pageland, 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 29727 →Compare Mount Croghan with another place →
Weather by month in Mount Croghan
July is the warmest month at Pageland, SC, averaging 91°F by day and 71°F at night; January is the coldest at 55°F and 33°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 30% of years.
Warmth for growing adds up to 5,330 growing degree days a year (base 50°F), fewer than at 55% of the 105 South Carolina stations. 39% of them (2,104) have built up by the end of June, and July adds the most, 964. Precipitation totals 48.3 inches a year, most in August (5.3") and least in May (3.1"); May to September bring 44% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 55 | 33 | 4.2 | 100% | 14 | 42 |
| Feb | 59 | 35 | 3.3 | 99% | 11 | 61 |
| Mar | 66 | 41 | 3.9 | 92% | 6 | 173 |
| Apr | 75 | 50 | 3.6 | 30% | 1 | 379 |
| May | 81 | 59 | 3.1 | 0% | 0 | 630 |
| Jun | 88 | 67 | 4.3 | 0% | 0 | 819 |
| Jul | 91 | 71 | 4.1 | 0% | 0 | 964 |
| Aug | 89 | 69 | 5.3 | 0% | 0 | 907 |
| Sep | 84 | 64 | 4.4 | 0% | 0 | 715 |
| Oct | 76 | 52 | 4.1 | 18% | <1 | 429 |
| Nov | 65 | 40 | 3.9 | 92% | 6 | 152 |
| Dec | 57 | 36 | 4.1 | 99% | 11 | 60 |
Monthly normals 1991–2020 at Pageland, SC (520 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, Chesterfield 3 E, SC, 13 miles east of Mount Croghan and 315 feet lower, has a last frost 5 days later (April 1), a first frost 5 days earlier (November 3), a season 12 days shorter.
When it snows in Mount Croghan, South Carolina
Measurable snow is rare here: only 5 of 18 winters from 1991 to 2020 recorded 0.1 inch or more at Pageland, SC, 6.8 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 29727
| When | What to do |
|---|---|
| January 16 – January 30 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| January 30 – February 13 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| February 27 – March 13 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 27 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 16 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 25 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 8 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 29727 is 7 miles from Pageland, SC, which stands at 520 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 29728 (Pageland). The 2023 USDA Plant Hardiness Zone Map lists ZIP 29727 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.