Blackville, South Carolina climate: Normal weather by month, frost dates and records
Blackville's normal year runs from 36°F January nights to 91°F July afternoons, with 46.2 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 17.7°C, January lows of 2°C, July highs of 33°C, 1,174 mm of precipitation a year.
- NOAA stationBlackville (3 mi W)
- Station IDUSW00063826
- Location33.35°N 81.33°W
- Elevation317 ft (97 m)
- Population1,906
On October 23, the normal high in Blackville is 74°F and the normal low 50°F, and the chance of measurable rain or snow is 24%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Blackville.
- Jan 57° 36°
- Feb 61° 38°
- Mar 68° 44°
- Apr 76° 51°
- May 83° 60°
- Jun 88° 67°
- Jul 91° 71°
- Aug 89° 70°
- Sep 84° 64°
- Oct 76° 53°
- Nov 66° 43°
- Dec 59° 38°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Blackville each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 36°F. The most precipitation falls in June (5.28 in), the least in November (2.54 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 57°F | 36°F | 46.2°F | 3.56 | 9 | <1 | 13 | 10 h 10 min |
| February | 61°F | 38°F | 49.5°F | 3.69 | 10 | <1 | 9 | 11 h |
| March | 68°F | 44°F | 56.0°F | 3.93 | 9 | <1 | 3 | 12 h |
| April | 76°F | 51°F | 63.3°F | 3.32 | 8 | <1 | <1 | 13 h |
| May | 83°F | 60°F | 71.5°F | 3.00 | 9 | 6 | <1 | 13 h 50 min |
| June | 88°F | 67°F | 77.9°F | 5.28 | 12 | 14 | <1 | 14 h 20 min |
| July | 91°F | 71°F | 80.6°F | 4.40 | 12 | 20 | <1 | 14 h 10 min |
| August | 89°F | 70°F | 79.3°F | 5.13 | 11 | 15 | <1 | 13 h 30 min |
| September | 84°F | 64°F | 74.4°F | 4.81 | 9 | 8 | <1 | 12 h 30 min |
| October | 76°F | 53°F | 64.6°F | 2.66 | 8 | <1 | <1 | 11 h 20 min |
| November | 66°F | 43°F | 54.7°F | 2.54 | 7 | <1 | 4 | 10 h 30 min |
| December | 59°F | 38°F | 48.5°F | 3.90 | 10 | <1 | 9 | 10 h |
| Year (annual) | 75°F | 53°F | 63.9°F | 46.22 | 113 | 63 | 39 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 14°C | 2°C | 7.9°C | 90 mm |
| February | 16°C | 3°C | 9.7°C | 94 mm |
| March | 20°C | 7°C | 13.3°C | 100 mm |
| April | 24°C | 11°C | 17.4°C | 84 mm |
| May | 29°C | 15°C | 21.9°C | 76 mm |
| June | 31°C | 20°C | 25.5°C | 134 mm |
| July | 33°C | 21°C | 27.0°C | 112 mm |
| August | 32°C | 21°C | 26.3°C | 130 mm |
| September | 29°C | 18°C | 23.6°C | 122 mm |
| October | 25°C | 12°C | 18.1°C | 68 mm |
| November | 19°C | 6°C | 12.6°C | 65 mm |
| December | 15°C | 3°C | 9.2°C | 99 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Bamberg (18 miles away), gets 0 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00063826; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Blackville?
Normal highs sit between 65°F and 85°F in March, April, May, September, October and November. Of those, November has the fewest days with rain (7).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00063826.
When is the last frost in Blackville?
In Blackville, the last spring frost (32°F) comes after March 20 in half of years and after April 8 in one year in ten; the first autumn frost comes before November 13 in half of years and before October 29 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- March 201 year in 10 after April 8; 9 in 10 after February 27
- First autumn frost, half of years before
- November 131 year in 10 before October 29; 9 in 10 before December 2
NOAA puts the median frost-free season at 238 days, and the season without a hard freeze (28°F) at 269 days.
A hard freeze (28°F) comes after March 5 in half of springs and before November 30 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Blackville in zone 8b in ZIP code 29817, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Blackville's NOAA station is in zone 8b: the coldest night of a typical year reaches 17°F (17 complete years).
Frost dates for every NOAA station in South Carolina · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00063826; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Blackville?
In a normal year in Blackville, 63 days a year reach 90°F (1 of them 100°F or more), 39 nights fall to 32°F or colder and 113 days bring measurable precipitation.
- Days at 90°F or more
- 63a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 39a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 113a normal year
The highest temperature in this station's record (since 2002) is 104°F, on June 30, 2012; the lowest is 11°F, on January 7, 2014.
The wettest calendar year on that record is 2023, with 61.16 in.
Source: NOAA NCEI 1991-2020 annual normals, station USW00063826; records: ACIS (NOAA Regional Climate Centers), station USW00063826. Records use complete months only; a month missing more than three days is left out.
How sunny is Blackville?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Blackville, 4.6 kWh per square metre a day. July is the sunniest month (81%) and February the cloudiest (73%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 76% | 2.9 |
| February | 73% | 3.5 |
| March | 75% | 4.5 |
| April | 80% | 5.8 |
| May | 80% | 6.2 |
| June | 81% | 6.4 |
| July | 81% | 6.2 |
| August | 80% | 5.6 |
| September | 79% | 4.9 |
| October | 79% | 4.0 |
| November | 79% | 3.1 |
| December | 74% | 2.5 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Blackville need?
A normal year in Blackville brings 2,383 heating degree days, 56% fewer than the median U.S. place (5,373), and 2,006 cooling degree days, 2.2 times the median (908). Four months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 5,629 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 586 | 2 |
| February | 439 | 5 |
| March | 294 | 15 |
| April | 113 | 63 |
| May | 16 | 219 |
| June | 0 | 386 |
| July | 0 | 485 |
| August | 0 | 445 |
| September | 5 | 287 |
| October | 96 | 85 |
| November | 320 | 13 |
| December | 515 | 3 |
| Year (annual) | 2,383 | 2,006 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00063826. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Blackville been warmer than normal lately?
2025 averaged 64.4°F, 0.5°F above the 1991-2020 normal of 63.9°F. 4 of the 4 complete years since 2022 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 64.8°F | +0.9°F | 40.89 |
| 2023 | 65.0°F | +1.1°F | 61.16 |
| 2024 | 65.6°F | +1.7°F | 49.89 |
| 2025 | 64.4°F | +0.5°F | 47.67 |
Source: observed years: ACIS, station USW00063826. A year counts only with all twelve months complete.
How does Blackville's climate compare?
Blackville is warmer than 48 of the other 72 places with their own NOAA record in South Carolina, and wetter than 14. Across the 7,247 U.S. stations with normals, its annual mean of 63.9°F is warmer than 85%.
In the Köppen classification computed from these normals, Blackville is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Blackville share this climate record?
4 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Williston, SC2,879 people · 6 mi NW
- Springfield, SC437 people · 10 mi N
- Snelling, SC253 people · 11 mi SW
- Elko, SC140 people · 4 mi NW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Blackville's climate
What is the coldest month in Blackville?
January, with a normal high of 57°F and a normal low of 36°F. The warmest is July (91°F by day, 71°F at night).
Does it snow in Blackville?
Rarely. NOAA publishes no 1991-2020 snowfall normal for Blackville's NOAA station; the nearest record that keeps one, Bamberg (18 miles away), records 0 inches of snow in a normal year.
What is the rainiest month in Blackville?
June, with 5.28 in of precipitation in a normal year; the driest is November with 2.54 in.
What plant hardiness zone is Blackville in?
The USDA's 2023 map puts Blackville in zone 8b in ZIP code 29817, the nearest ZIP area. By the same method at Blackville's NOAA station, the coldest night of a typical year reaches 17°F (17 years, 1991-2020): zone 8b.
How late can frost come in Blackville?
In half of years the last 32°F night comes after March 20; in one year in ten it comes after April 8. Waiting until April 8 leaves about a one-in-ten chance of a later frost.
Nearby and next
- South Carolina climateThe statewide normals and every place in the state
- Barnwell, SC9 miles from this station, 64.7°F a year
- Bamberg, SC17 miles from this station, 64.4°F a year
- Wagener, SC20 miles from this station, 62.9°F a year
- Allendale, SC24 miles from this station, 63.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made