Georgetown County, 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 Georgetown County's primary NOAA station, GEORGETOWN CO AP.
The climate verdict for Georgetown County
Water is the standout signal in Georgetown County, South Carolina: 55.4 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 65°F. It scores 85/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 85% of them.
- 65°F
- average temperature, NOAA 1991-2020 normal
- 85/100
- comfort score, above 85% of station-mapped location scores
- 55.4"
- precipitation, annual total
- 257 days
- frost-free days per growing season
Georgetown County: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00383470 · Georgetown County, SC 65°F mean · 55.4" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 65°F
- RANK-UPPER #6,038
- PHOTO-FINISH ≈ Acton Rch
- PRCP-WET 55.4"
- SWING-MID 34°F
- COMF-TOP 85/100
- LOAD-MIX H/C balanced
- STN-1 USC00383470
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Acton Rch, TX (+ 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.
- Georgetown Coun… (this station) 65°F
- Hot Fallbrook, CA 65°F
- Near Acton Rch, TX 65°F
- Near Arlington Six F…, TX 65°F
- Near Crossett, AR 65°F
Climate Living Index · Georgetown County
Georgetown County: 79/100 · grade B
Georgetown County publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Georgetown County, not an official NOAA rating. Rankings still use Comfort Score 85/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 65.1°F · 2.4° from 67.5°F | 92/100 · A |
| Frost-free season | 257 days/year | 91/100 · A |
| Normal heat + freeze calendar | 53 calendar days | 91/100 · A |
| Precipitation balance | 55.4 in · 20.4 from 35 in | 27/100 · F |
Georgetown County · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Georgetown County is a temperate Köppen climate: Cfa
Coldest-month mean 47.8°F and warmest-month mean 81.8°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
- 81.8°F
- Coldest month
- 47.8°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 Georgetown County sits across the climate record
Three NOAA fields for Georgetown County's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 12% warmest
- Among 6,861 stations, Georgetown County sits in the warmer third of annual means.
- Annual precipitation
- Top 11% wettest
- Georgetown County's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 84%
- Warmest-to-coldest month gap for Georgetown County is compact versus 6,861 complete station-years.
How Georgetown County compares across U.S. station-mapped locations
Georgetown County's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
85 Top 15% score exceeds 85% 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%). This entry sits in this band.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 59°F (15°C) | 37°F (3°C) | 48°F (9°C) | 3.5" | 11.7 | 0.0 |
| February | 62°F (16°C) | 39°F (4°C) | 50°F (10°C) | 3.5" | 7.5 | 0.0 |
| March | 68°F (20°C) | 44°F (7°C) | 56°F (13°C) | 3.6" | 3.9 | 0.0 |
| April | 76°F (25°C) | 53°F (12°C) | 64°F (18°C) | 3.4" | 0.0 | 0.4 |
| May | 82°F (28°C) | 61°F (16°C) | 72°F (22°C) | 3.4" | 0.0 | 3.8 |
| June | 88°F (31°C) | 69°F (20°C) | 78°F (26°C) | 5.4" | 0.0 | 15.0 |
| July | 91°F (33°C) | 73°F (23°C) | 82°F (28°C) | 7.1" | 0.0 | 20.4 |
| August | 90°F (32°C) | 72°F (22°C) | 81°F (27°C) | 6.9" | 0.0 | 17.5 |
| September | 86°F (30°C) | 67°F (20°C) | 76°F (25°C) | 6.5" | 0.0 | 8.4 |
| October | 78°F (25°C) | 56°F (13°C) | 67°F (19°C) | 5.0" | 0.0 | 1.1 |
| November | 68°F (20°C) | 45°F (7°C) | 57°F (14°C) | 3.1" | 3.3 | 0.0 |
| December | 60°F (16°C) | 40°F (4°C) | 50°F (10°C) | 3.9" | 7.1 | 0.0 |
The year, day by day
The year in Georgetown County runs from a mild 37°F around January 15 to 91°F at the peak near July 14, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from June 27 through August 18, covering 53 dates. The broader mild season, normal highs of 70°F or more, runs March 25 to November 9.
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 37°F around January 15.
The widest day
November 5 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 Georgetown County.
Where Georgetown County Stands Nationally
The normal water year runs well above the national norm at roughly 55 inches.
Georgetown County 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
Georgetown County runs a summer-peaked wet season
35% of Georgetown County's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is July at 7.1", on a 34°F seasonal spread. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: July, August, September, taking 37% of the annual total between them.
- Driest month: November at 3.1".
- Winter share: 20% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
Frost Dates & Growing Season
First Fall Freeze
November 24
50% probability date
Last Spring Freeze
March 12
50% probability date
Growing Season
257 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,192
Higher = more heating needed
Cooling Degree Days
2,244
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside SC closest to Georgetown County 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 (65°F here).
- Crossett, AR 65°F · 0.0°F off
- Fallbrook, CA 65°F · 0.0°F off
- Mineral Wells, TX 65°F · 0.0°F off
- Paint Rock, TX 65°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (55.4" here), excluding temperature-peer places.
- Holly Springs, MS 55.5" · 0.0" off
- Richlands, NC 55.5" · 0.0" off
- Bessemer, AL 55.5" · 0.1" off
- Deland, FL 55.5" · 0.1" off
Data-derived climate profile
How Georgetown County's climate pattern fits together
mixed demand · wet · mid swing
Water is prominent even though neither heating nor cooling wholly defines the record. Georgetown County averages 55.4 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 Georgetown County's middle-range seasonal profile. The measured spread is 34.0°F. The annual average is 65°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Heating and cooling both register in Georgetown County's normal, at 2,192 and 2,244 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 257 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 Georgetown County'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 Georgetown County, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about Georgetown County's climate
How much rain does Georgetown County get? ▼
How many days above 90°F does Georgetown County get? ▼
How much energy does heating and cooling require in Georgetown County? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Georgetown County's primary station: GEORGETOWN CO AP (USC00383470). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Georgetown County; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Georgetown County 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.