Clarks Hill, SC Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Clarks Hill's primary NOAA station, CLARKS HILL 1 W.
The climate verdict for Clarks Hill
Water is the standout signal in Clarks Hill, South Carolina: 46.9 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 64°F. It scores 96/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 96% of them.
- 64°F
- average temperature, NOAA 1991-2020 normal
- 96/100
- comfort score, above 96% of station-mapped location scores
- 46.9"
- precipitation, annual total
- 248 days
- growing season, frost-free days
Clarks Hill: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00381726 · Clarks Hill, SC 64°F mean · 46.9" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 64°F
- RANK-UPPER #5,900
- PHOTO-FINISH ≈ Aiken
- PRCP-MID 46.9"
- SWING-MID 36°F
- COMF-TOP 96/100
- LOAD-MIX H/C balanced
- STN-1 USC00381726
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Aiken, SC (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every SC station list.
- Clarks Hill (this station) 64°F
- Hot Cades, SC 64°F
- Near Aiken, SC 64°F
- Near Albany, TX 64°F
- Near Atlantic Beach…, NC 64°F
Climate Living Index · Clarks Hill
Clarks Hill: 82/100 · grade B
Clarks Hill publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Clarks Hill, not an official NOAA rating. Rankings still use Comfort Score 96/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 64.1°F · 3.4° from 67.5°F | 90/100 · A |
| Frost-free season | 248 days/year | 88/100 · A |
| Normal heat + freeze calendar | 65 calendar days | 87/100 · A |
| Precipitation balance | 46.9 in · 11.9 from 35 in | 58/100 · C |
Clarks Hill · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Clarks Hill is a temperate Köppen climate: Cfa
Coldest-month mean 45.7°F and warmest-month mean 82.0°F place this station in temperate, no dry season, hot summer climates (Cfa). Class Cfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, no dry season, hot summer.
- Köppen code
- Cfa
- Group
- Temperate
- Warmest month
- 82.0°F
- Coldest month
- 45.7°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · balanced station
Where Clarks Hill sits across the climate record
Three NOAA fields for Clarks Hill's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 14% warmest
- Among 6,861 stations, Clarks Hill sits in the warmer third of annual means.
- Annual precipitation
- Top 27% wettest
- Clarks Hill's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 79%
- Warmest-to-coldest month gap for Clarks Hill is compact versus 6,861 complete station-years.
How Clarks Hill compares across U.S. station-mapped locations
Clarks Hill's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
96 Top 4% score exceeds 96% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). Below this entry.
- 80–90: 921 station-mapped locations (15%). Below this entry.
- 90–100: 564 station-mapped locations (9%). This entry sits in this band.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Clarks Hill's measured station temperature trend
MethodologyAcross 46 complete annual observations from 1953 to 2021, CLARKS HILL 1 W warmed at a fitted rate of 0.13°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Clarks Hill primary station fitted change +0.13 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 55°F (13°C) | 36°F (2°C) | 46°F (8°C) | 4.0" | 17.0 | 0.0 |
| February | 59°F (15°C) | 38°F (3°C) | 49°F (9°C) | 3.9" | 12.5 | 0.0 |
| March | 67°F (19°C) | 44°F (7°C) | 56°F (13°C) | 4.3" | 6.2 | 0.1 |
| April | 76°F (24°C) | 51°F (11°C) | 64°F (18°C) | 3.1" | 1.3 | 0.8 |
| May | 83°F (28°C) | 60°F (16°C) | 71°F (22°C) | 3.4" | 0.1 | 6.5 |
| June | 89°F (32°C) | 68°F (20°C) | 78°F (26°C) | 4.7" | 0.0 | 17.0 |
| July | 92°F (33°C) | 72°F (22°C) | 82°F (28°C) | 4.7" | 0.0 | 24.8 |
| August | 91°F (33°C) | 71°F (21°C) | 81°F (27°C) | 4.5" | 0.0 | 21.5 |
| September | 86°F (30°C) | 65°F (18°C) | 75°F (24°C) | 3.7" | 0.0 | 11.1 |
| October | 76°F (24°C) | 55°F (13°C) | 65°F (19°C) | 3.0" | 1.0 | 0.6 |
| November | 66°F (19°C) | 44°F (6°C) | 55°F (13°C) | 3.3" | 6.3 | 0.0 |
| December | 58°F (14°C) | 38°F (3°C) | 48°F (9°C) | 4.2" | 12.9 | 0.0 |
The year, day by day
The year in Clarks Hill runs from a mild 36°F around January 18 to 92°F at the peak near July 12, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from June 20 through August 23, covering 65 dates. The broader mild season, normal highs of 70°F or more, runs March 27 to November 2.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 36°F around January 18.
The widest day
April 12 carries the biggest normal gap between afternoon and dawn, 24°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Clarks Hill.
Where Clarks Hill Stands Nationally
Heat is a defining feature of the normals calendar — the normal daily high reaches 90°F on roughly 65 days a year, more than four out of five ranked stations record.
Clarks Hill earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
Clarks Hill spreads its precipitation across the year
Neither half of the year dominates here: June through August take 30% of the annual total and December through February 26%, with neither reaching the 35% that would mark a distinct wet season. Clarks Hill has no dry season to plan around, though it does carry a 36.3°F seasonal spread.
The gap between the wettest and driest month still matters: July averages 4.7" and October 3.0". The three wettest months together take 30% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
Frost Dates & Growing Season
First Fall Freeze
November 18
50% probability date
Last Spring Freeze
March 15
50% probability date
Growing Season
248 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,467
Higher = more heating needed
Cooling Degree Days
2,151
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside SC closest to Clarks Hill on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (64°F here).
- Albany, TX 64°F · 0.0°F off
- Greensboro, AL 64°F · 0.0°F off
- McNeal, AZ 64°F · 0.0°F off
- Monticello, AR 64°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (46.9" here), excluding temperature-peer places.
- Stevensville, MD 46.9" · 0.0" off
- Salem, IN 46.9" · 0.0" off
- Clarion, PA 46.9" · 0.0" off
- Mocksville, NC 46.9" · 0.0" off
Data-derived climate profile
How Clarks Hill's climate pattern fits together
mixed demand · wet · mid swing
Water is prominent even though neither heating nor cooling wholly defines the record. Clarks Hill averages 46.9 inches of precipitation a year. Snowfall is not added to the interpretation because its annual value is missing. The monthly table supplies the seasonal distribution hidden by that annual total.
July and January mark the typical warm and cold ends of the calendar in Clarks Hill's middle-range seasonal profile. The measured spread is 36.3°F. The annual average is 64°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Heating and cooling both register in Clarks Hill's normal, at 2,467 and 2,151 degree days respectively. Neither total exceeds the other by more than two to one, so the record is better read as a mixed-demand calendar than as heating-led or cooling-led.
The frost-free window extends for about 248 days. That is a long calendar measure, but it is not a forecast and does not combine heat, rainfall, soil, or local elevation into a planting recommendation.
These labels group NOAA 1991-2020 normals from Clarks Hill's primary station, where heating and cooling demand are close enough that neither season sets the character on its own. On a balanced station like Clarks Hill, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about Clarks Hill's climate
How much rain does Clarks Hill get? ▼
How many days above 90°F does Clarks Hill get? ▼
How much energy does heating and cooling require in Clarks Hill? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Clarks Hill's primary station: CLARKS HILL 1 W (USC00381726). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as a census-designated place (GEOID 4514590), not an incorporated municipality. Match rule for Clarks Hill: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Clarks Hill comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.