Holly Hill, South Carolina climate: Normal weather by month, frost dates and records
Holly Hill's normal year runs from 35°F January nights to 91°F July afternoons, with 50.5 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 17.7°C, January lows of 1°C, July highs of 33°C, 1,281 mm of precipitation a year.
- NOAA stationHolly Hill (1 mi SW)
- Station IDUSC00384205
- Location33.32°N 80.42°W
- Elevation95 ft (29 m)
- From the centerunder 1 mile
- Population1,259
On October 23, the normal high in Holly Hill is 75°F and the normal low 50°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Holly Hill.
- Jan 58° 35°
- Feb 62° 36°
- Mar 69° 42°
- Apr 76° 50°
- May 83° 59°
- Jun 88° 67°
- Jul 91° 70°
- Aug 90° 70°
- Sep 85° 65°
- Oct 77° 53°
- Nov 67° 42°
- Dec 60° 37°
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 Holly Hill each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 35°F. The most precipitation falls in August (6.01 in), the least in November (2.88 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 58°F | 35°F | 46.4°F | 3.83 | – | <1 | 17 | 10 h 10 min |
| February | 62°F | 36°F | 49.0°F | 3.60 | – | <1 | 9 | 11 h |
| March | 69°F | 42°F | 55.4°F | 3.67 | – | <1 | 5 | 12 h |
| April | 76°F | 50°F | 63.2°F | 3.27 | – | <1 | <1 | 13 h |
| May | 83°F | 59°F | 71.1°F | 3.57 | – | 7 | <1 | 13 h 50 min |
| June | 88°F | 67°F | 77.9°F | 5.53 | – | 17 | <1 | 14 h 20 min |
| July | 91°F | 70°F | 80.7°F | 5.73 | – | 22 | <1 | 14 h 10 min |
| August | 90°F | 70°F | 80.0°F | 6.01 | – | 20 | <1 | 13 h 30 min |
| September | 85°F | 65°F | 74.7°F | 5.09 | – | 11 | <1 | 12 h 30 min |
| October | 77°F | 53°F | 64.9°F | 3.72 | – | 1 | <1 | 11 h 20 min |
| November | 67°F | 42°F | 54.5°F | 2.88 | – | <1 | 5 | 10 h 30 min |
| December | 60°F | 37°F | 48.7°F | 3.55 | – | <1 | 10 | 10 h |
| Year (annual) | 76°F | 52°F | 63.9°F | 50.45 | – | 78 | 47 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 15°C | 1°C | 8.0°C | 97 mm |
| February | 16°C | 2°C | 9.4°C | 91 mm |
| March | 20°C | 6°C | 13.0°C | 93 mm |
| April | 25°C | 10°C | 17.3°C | 83 mm |
| May | 28°C | 15°C | 21.7°C | 91 mm |
| June | 31°C | 20°C | 25.5°C | 140 mm |
| July | 33°C | 21°C | 27.1°C | 146 mm |
| August | 32°C | 21°C | 26.7°C | 153 mm |
| September | 29°C | 18°C | 23.7°C | 129 mm |
| October | 25°C | 12°C | 18.3°C | 94 mm |
| November | 20°C | 5°C | 12.5°C | 73 mm |
| December | 16°C | 3°C | 9.3°C | 90 mm |
NOAA publishes no 1991-2020 snowfall normal for this station, and no record within 25 miles keeps one, so snow is left out here rather than estimated.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00384205; 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 Holly Hill?
Normal highs sit between 65°F and 85°F in March, April, May, September, October and November.
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 USC00384205.
When is the last frost in Holly Hill?
In Holly Hill, the last spring frost (32°F) comes after March 22 in half of years and after April 6 in one year in ten; the first autumn frost comes before November 12 in half of years and before October 31 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 221 year in 10 after April 6; 9 in 10 after February 28
- First autumn frost, half of years before
- November 121 year in 10 before October 31; 9 in 10 before December 2
NOAA puts the median frost-free season at 237 days, and the season without a hard freeze (28°F) at 265 days.
A hard freeze (28°F) comes after March 6 in half of springs and before November 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Holly Hill in zone 8b in ZIP code 29059, 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 USC00384205; 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 in Holly Hill?
In a normal year in Holly Hill, 78 days a year reach 90°F (2 of them 100°F or more) and 47 nights fall to 32°F or colder.
- Days at 90°F or more
- 78a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 47a normal year
- Days that stay below freezing
- 1high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00384205.
How sunny is Holly Hill?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Holly Hill, 4.6 kWh per square metre a day. July is the sunniest month (82%) 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 | 81% | 5.8 |
| May | 80% | 6.2 |
| June | 82% | 6.4 |
| July | 82% | 6.2 |
| August | 80% | 5.6 |
| September | 79% | 4.8 |
| October | 80% | 4.0 |
| November | 79% | 3.1 |
| 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 much heating and cooling does Holly Hill need?
A normal year in Holly Hill brings 2,408 heating degree days, 55% fewer than the median U.S. place (5,373), and 2,018 cooling degree days, 2.2 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 5,628 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 580 | 4 |
| February | 452 | 3 |
| March | 311 | 14 |
| April | 112 | 57 |
| May | 21 | 208 |
| June | 0 | 387 |
| July | 0 | 487 |
| August | 0 | 463 |
| September | 4 | 295 |
| October | 91 | 86 |
| November | 327 | 12 |
| December | 510 | 4 |
| Year (annual) | 2,408 | 2,018 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00384205. 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 Holly Hill been warmer than normal lately?
2021 averaged 64.5°F, 0.6°F above the 1991-2020 normal of 63.9°F.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 64.5°F | +0.6°F | 47.46 |
Source: observed years: ACIS, station USC00384205. A year counts only with all twelve months complete.
How does Holly Hill's climate compare?
Holly Hill is warmer than 48 of the other 72 places with their own NOAA record in South Carolina, and wetter than 45. 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, Holly Hill 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 Holly Hill share this climate record?
8 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.
- St. George, SC1,855 people · 13 mi SW
- Santee, SC814 people · 12 mi N
- Harleyville, SC740 people · 7 mi S
- Elloree, SC548 people · 17 mi NW
- North Santee, SC528 people · 16 mi N
- Eutawville, SC241 people · 7 mi NE
- Reevesville, SC197 people · 15 mi SW
- Vance, SC124 people · 8 mi N
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 Holly Hill's climate
What is the coldest month in Holly Hill?
January, with a normal high of 58°F and a normal low of 35°F. The warmest is July (91°F by day, 70°F at night).
What is the rainiest month in Holly Hill?
August, with 6.01 in of precipitation in a normal year; the driest is November with 2.88 in.
What plant hardiness zone is Holly Hill in?
The USDA's 2023 map puts Holly Hill in zone 8b in ZIP code 29059, the nearest ZIP area.
How late can frost come in Holly Hill?
In half of years the last 32°F night comes after March 22; in one year in ten it comes after April 6. Waiting until April 6 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
- Summerville, SC22 miles from this station, 63.8°F a year
- Moncks Corner, SC25 miles from this station, 66.1°F a year
- Orangeburg, SC27 miles from this station, 65.0°F a year
- Manning, SC29 miles from this station, 63.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made