Allendale, South Carolina climate: Normal weather by month, frost dates and records
Allendale's normal year runs from 33°F January nights to 92°F July afternoons, with 48.8 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 17.4°C, January lows of 1°C, July highs of 33°C, 1,240 mm of precipitation a year.
- NOAA stationAllendale (2 mi NW)
- Station IDUSC00380126
- Location33.02°N 81.32°W
- Elevation180 ft (55 m)
- Population2,496
On October 23, the normal high in Allendale is 76°F and the normal low 48°F, and the chance of measurable rain or snow is 18%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Allendale.
- Jan 59° 33°
- Feb 62° 36°
- Mar 69° 42°
- Apr 76° 49°
- May 83° 58°
- Jun 89° 66°
- Jul 92° 69°
- Aug 89° 69°
- Sep 85° 63°
- Oct 77° 52°
- Nov 69° 40°
- Dec 61° 35°
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 Allendale each month?
July is the warmest month, with normal highs of 92°F; January the coldest, with normal lows of 33°F. The most precipitation falls in August (5.56 in), the least in April (3.11 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 59°F | 33°F | 45.9°F | 3.97 | 9 | <1 | 16 | 10 h 10 min |
| February | 62°F | 36°F | 48.8°F | 3.65 | 7 | <1 | 12 | 11 h |
| March | 69°F | 42°F | 55.1°F | 3.96 | 7 | <1 | 6 | 12 h |
| April | 76°F | 49°F | 62.5°F | 3.11 | 7 | 1 | 1 | 13 h |
| May | 83°F | 58°F | 70.4°F | 3.60 | 7 | 7 | <1 | 13 h 50 min |
| June | 89°F | 66°F | 77.3°F | 4.78 | 9 | 16 | <1 | 14 h 20 min |
| July | 92°F | 69°F | 80.5°F | 5.45 | 10 | 23 | <1 | 14 h 10 min |
| August | 89°F | 69°F | 79.0°F | 5.56 | 10 | 18 | <1 | 13 h 20 min |
| September | 85°F | 63°F | 73.9°F | 4.24 | 7 | 9 | <1 | 12 h 30 min |
| October | 77°F | 52°F | 64.5°F | 3.36 | 6 | 1 | 1 | 11 h 20 min |
| November | 69°F | 40°F | 54.4°F | 3.20 | 5 | <1 | 8 | 10 h 30 min |
| December | 61°F | 35°F | 47.9°F | 3.93 | 7 | <1 | 14 | 10 h |
| Year (annual) | 76°F | 51°F | 63.4°F | 48.81 | 92 | 75 | 57 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 15°C | 1°C | 7.7°C | 101 mm |
| February | 17°C | 2°C | 9.3°C | 93 mm |
| March | 20°C | 5°C | 12.8°C | 101 mm |
| April | 25°C | 9°C | 16.9°C | 79 mm |
| May | 28°C | 14°C | 21.3°C | 91 mm |
| June | 31°C | 19°C | 25.2°C | 121 mm |
| July | 33°C | 21°C | 26.9°C | 138 mm |
| August | 32°C | 20°C | 26.1°C | 141 mm |
| September | 29°C | 17°C | 23.3°C | 108 mm |
| October | 25°C | 11°C | 18.1°C | 85 mm |
| November | 20°C | 5°C | 12.4°C | 81 mm |
| December | 16°C | 2°C | 8.8°C | 100 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Hampton (16 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 USC00380126; 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 Allendale?
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 (5).
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 USC00380126.
When is the last frost in Allendale?
In Allendale, the last spring frost (32°F) comes after March 28 in half of years and after April 13 in one year in ten; the first autumn frost comes before November 7 in half of years and before October 23 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 281 year in 10 after April 13; 9 in 10 after March 8
- First autumn frost, half of years before
- November 71 year in 10 before October 23; 9 in 10 before November 23
NOAA puts the median frost-free season at 224 days, and the season without a hard freeze (28°F) at 252 days.
A hard freeze (28°F) comes after March 13 in half of springs and before November 19 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Allendale in zone 8b in ZIP code 29810, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Allendale's NOAA station is in zone 8b: the coldest night of a typical year reaches 16°F (23 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 USC00380126; 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 Allendale?
In a normal year in Allendale, 75 days a year reach 90°F (5 of them 100°F or more), 57 nights fall to 32°F or colder and 92 days bring measurable precipitation.
- Days at 90°F or more
- 75a normal year
- Days at 100°F or more
- 5a normal year
- Nights at 32°F or colder
- 57a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 92a normal year
The highest temperature in this station's record (since 1981) is 106°F, on June 30, 1998; the lowest is −2°F, on January 21, 1985.
The wettest calendar year on that record is 1997, with 59.88 in; the snowiest season is 2009–10, with 5.2 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00380126; records: ACIS (NOAA Regional Climate Centers), station USC00380126. Records use complete months only; a month missing more than three days is left out.
How sunny is Allendale?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Allendale, 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 Allendale need?
A normal year in Allendale brings 2,498 heating degree days, 54% fewer than the median U.S. place (5,373), and 1,930 cooling degree days, 2.1 times the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 5,479 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 593 | 1 |
| February | 455 | 3 |
| March | 319 | 14 |
| April | 132 | 59 |
| May | 26 | 192 |
| June | 1 | 370 |
| July | 0 | 480 |
| August | 0 | 434 |
| September | 6 | 274 |
| October | 102 | 86 |
| November | 329 | 13 |
| December | 534 | 4 |
| Year (annual) | 2,498 | 1,930 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00380126. 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.
How does Allendale's climate compare?
Allendale is warmer than 40 of the other 72 places with their own NOAA record in South Carolina, and wetter than 35. Across the 7,247 U.S. stations with normals, its annual mean of 63.4°F is warmer than 84%.
In the Köppen classification computed from these normals, Allendale 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 Allendale share this climate record?
6 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.
- Fairfax, SC1,389 people · 6 mi SE
- Hiltonia, GA322 people · 22 mi SW
- Girard, GA184 people · 23 mi W
- Sycamore, SC143 people · 6 mi E
- Kline, SC142 people · 8 mi N
- Ulmer, SC59 people · 9 mi NE
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 Allendale's climate
What is the coldest month in Allendale?
January, with a normal high of 59°F and a normal low of 33°F. The warmest is July (92°F by day, 69°F at night).
Does it snow in Allendale?
Rarely. NOAA publishes no 1991-2020 snowfall normal for Allendale's NOAA station; the nearest record that keeps one, Hampton (16 miles away), records 0 inches of snow in a normal year.
What is the rainiest month in Allendale?
August, with 5.56 in of precipitation in a normal year; the driest is April with 3.11 in.
What plant hardiness zone is Allendale in?
The USDA's 2023 map puts Allendale in zone 8b in ZIP code 29810, the nearest ZIP area. By the same method at Allendale's NOAA station, the coldest night of a typical year reaches 16°F (23 years, 1991-2020): zone 8b.
How late can frost come in Allendale?
In half of years the last 32°F night comes after March 28; in one year in ten it comes after April 13. Waiting until April 13 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
- Hampton, SC16 miles from this station, 66.9°F a year
- Barnwell, SC17 miles from this station, 64.7°F a year
- Blackville, SC24 miles from this station, 63.9°F a year
- Bamberg, SC25 miles from this station, 64.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made