Edisto Island Middleton Plantation, South Carolina climate: Climate normals at a NOAA weather station
Edisto Island Middleton Plantation's normal year runs from 40°F January nights to 90°F July afternoons, with 51.9 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 19.3°C, January lows of 4°C, July highs of 32°C, 1,318 mm of precipitation a year.
- NOAA stationEdisto Island Middleton Plantation
- Station IDUSC00382735
- Location32.61°N 80.33°W
- Elevation12 ft (4 m)
On October 23, the normal high in Edisto Island Middleton Plantation is 75°F and the normal low 57°F, and the chance of measurable rain or snow is 22%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Edisto Island Middleton Plantation.
- Jan 59° 40°
- Feb 63° 43°
- Mar 69° 48°
- Apr 76° 56°
- May 83° 64°
- Jun 88° 71°
- Jul 90° 74°
- Aug 90° 74°
- Sep 85° 69°
- Oct 78° 60°
- Nov 68° 49°
- Dec 61° 43°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Edisto Island Middleton Plantation each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 40°F. The most precipitation falls in August (7.46 in), the least in November (2.61 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 59°F | 40°F | 49.6°F | 3.58 | 8 | <1 | 7 | 10 h 10 min |
| February | 63°F | 43°F | 52.7°F | 2.89 | 8 | <1 | 4 | 11 h |
| March | 69°F | 48°F | 58.6°F | 3.88 | 8 | <1 | 1 | 12 h |
| April | 76°F | 56°F | 66.0°F | 3.55 | 7 | 1 | <1 | 13 h |
| May | 83°F | 64°F | 73.6°F | 2.79 | 7 | 5 | <1 | 13 h 50 min |
| June | 88°F | 71°F | 79.5°F | 5.21 | 10 | 16 | <1 | 14 h 20 min |
| July | 90°F | 74°F | 82.3°F | 6.55 | 11 | 22 | <1 | 14 h 10 min |
| August | 90°F | 74°F | 81.6°F | 7.46 | 13 | 20 | <1 | 13 h 20 min |
| September | 85°F | 69°F | 77.2°F | 5.19 | 9 | 9 | <1 | 12 h 30 min |
| October | 78°F | 60°F | 68.6°F | 4.34 | 7 | 1 | <1 | 11 h 30 min |
| November | 68°F | 49°F | 58.3°F | 2.61 | 7 | <1 | 1 | 10 h 30 min |
| December | 61°F | 43°F | 52.1°F | 3.85 | 10 | <1 | 3 | 10 h |
| Year (annual) | 76°F | 58°F | 66.7°F | 51.90 | 104 | 73 | 16 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 15°C | 4°C | 9.8°C | 91 mm |
| February | 17°C | 6°C | 11.5°C | 73 mm |
| March | 20°C | 9°C | 14.8°C | 99 mm |
| April | 24°C | 13°C | 18.9°C | 90 mm |
| May | 28°C | 18°C | 23.1°C | 71 mm |
| June | 31°C | 22°C | 26.4°C | 132 mm |
| July | 32°C | 23°C | 27.9°C | 166 mm |
| August | 32°C | 23°C | 27.6°C | 189 mm |
| September | 30°C | 21°C | 25.1°C | 132 mm |
| October | 25°C | 15°C | 20.3°C | 110 mm |
| November | 20°C | 9°C | 14.6°C | 66 mm |
| December | 16°C | 6°C | 11.2°C | 98 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00382735; 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.
Which months are mildest at Edisto Island Middleton Plantation?
Normal highs sit between 65°F and 85°F in March, April, May, October and November. Of those, October 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 USC00382735.
When is the last frost at Edisto Island Middleton Plantation?
In Edisto Island Middleton Plantation, the last spring frost (32°F) comes after March 1 in half of years and after March 22 in one year in ten; the first autumn frost comes before December 6 in half of years and before November 15 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 11 year in 10 after March 22; 9 in 10 after February 1
- First autumn frost, half of years before
- December 61 year in 10 before November 15; 9 in 10 before January 4
NOAA puts the median frost-free season at 284 days, and the season without a hard freeze (28°F) at 316 days.
A hard freeze (28°F) comes after February 10 in half of springs and before December 29 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Edisto Island Middleton Plantation in zone 9a in ZIP code 29438, the nearest ZIP area.
Frost dates for every NOAA station in South Carolina · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00382735; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 at Edisto Island Middleton Plantation?
In a normal year in Edisto Island Middleton Plantation, 73 days a year reach 90°F (2 of them 100°F or more), 16 nights fall to 32°F or colder and 104 days bring measurable precipitation.
- Days at 90°F or more
- 73a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 16a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 104a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00382735.
How sunny is it at Edisto Island Middleton Plantation?
Over a year 81% of the sunlight that would reach the ground under clear skies gets through the clouds at Edisto Island Middleton Plantation, 4.8 kWh per square metre a day. July is the sunniest month (84%) and February the cloudiest (75%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 77% | 3.0 |
| February | 75% | 3.6 |
| March | 78% | 4.8 |
| April | 84% | 6.1 |
| May | 84% | 6.5 |
| June | 83% | 6.5 |
| July | 84% | 6.4 |
| August | 82% | 5.7 |
| September | 80% | 4.9 |
| October | 82% | 4.2 |
| November | 81% | 3.3 |
| December | 76% | 2.6 |
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 many heating and cooling degree days does Edisto Island Middleton Plantation record?
A normal year at Edisto Island Middleton Plantation brings 1,796 heating degree days, 67% fewer than the median U.S. place (5,373), and 2,431 cooling degree days, 2.7 times the median (908). Three months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 6,408 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 479 | 2 |
| February | 349 | 4 |
| March | 224 | 24 |
| April | 65 | 95 |
| May | 6 | 273 |
| June | 0 | 435 |
| July | 0 | 535 |
| August | 0 | 515 |
| September | 1 | 367 |
| October | 42 | 153 |
| November | 226 | 24 |
| December | 404 | 4 |
| Year (annual) | 1,796 | 2,431 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00382735. 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 Edisto Island Middleton Plantation's climate compare?
Edisto Island Middleton Plantation is warmer than 71 of the 73 places with their own NOAA record in South Carolina, and wetter than 51. Across the 7,247 U.S. stations with normals, its annual mean of 66.7°F is warmer than 91%.
In the Köppen classification computed from these normals, Edisto Island Middleton Plantation 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 Edisto Island Middleton Plantation share this climate record?
5 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.
- Hollywood, SC5,503 people · 12 mi NE
- Ravenel, SC2,688 people · 13 mi NE
- Meggett, SC1,453 people · 7 mi NE
- Adams Run, SC370 people · 8 mi N
- Rockville, SC141 people · 8 mi E
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 Edisto Island Middleton Plantation's climate
What is the coldest month at Edisto Island Middleton Plantation?
January, with a normal high of 59°F and a normal low of 40°F. The warmest is July (90°F by day, 74°F at night).
What is the rainiest month at Edisto Island Middleton Plantation?
August, with 7.46 in of precipitation in a normal year; the driest is November with 2.61 in.
What plant hardiness zone is Edisto Island Middleton Plantation in?
The USDA's 2023 map puts Edisto Island Middleton Plantation in zone 9a in ZIP code 29438, the nearest ZIP area.
How late can frost come at Edisto Island Middleton Plantation?
In half of years the last 32°F night comes after March 1; in one year in ten it comes after March 22. Waiting until March 22 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
- Edisto Beach, SC7 miles from this station, 65.5°F a year
- Beaufort, SC24 miles from this station, 67.2°F a year
- Charleston City, SC26 miles from this station, 67.2°F a year
- Beaufort Wastewater Treatment Plant, SC26 miles from this station, 67.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made