Walterboro, SC Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Walterboro's primary NOAA station, WALTERBORO 1 SW.
The climate verdict for Walterboro
Water is the standout signal in Walterboro, South Carolina: 51.4 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 64°F. It scores 83/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 81% of them.
- 64°F
- annual average temperature (NOAA normal)
- 83/100
- comfort score, above 81% of station-mapped location scores
- 51.4"
- precipitation, annual total
- 238 days
- frost-free growing season
Walterboro: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00388922 · Walterboro, SC 64°F mean · 51.4" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 64°F
- RANK-UPPER #5,900
- PHOTO-FINISH ≈ Aiken
- PRCP-WET 51.4"
- SWING-MID 34°F
- COMF-TOP 83/100
- LOAD-MIX H/C balanced
- STN-1 USC00388922
- 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.
- Walterboro (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 · Walterboro
Walterboro: 82/100 · grade B
Walterboro publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Walterboro, not an official NOAA rating. Rankings still use Comfort Score 83/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 34 calendar days | 95/100 · A |
| Annual temperature balance | 64.1°F · 3.4° from 67.5°F | 90/100 · A |
| Snowfall burden | 0.0 inches/year | 90/100 · A |
| Frost-free season | 238 days/year | 84/100 · B |
| Precipitation balance | 51.4 in · 16.4 from 35 in | 42/100 · D |
Walterboro · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Walterboro is a temperate Köppen climate: Cfa
Coldest-month mean 46.7°F and warmest-month mean 80.8°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
- 80.8°F
- Coldest month
- 46.7°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 Walterboro sits across the climate record
Three NOAA fields for Walterboro'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, Walterboro sits in the warmer third of annual means.
- Annual precipitation
- Top 16% wettest
- Walterboro'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 Walterboro is compact versus 6,861 complete station-years.
How Walterboro compares across U.S. station-mapped locations
Walterboro's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
83 Top 19% score exceeds 81% 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
Walterboro's measured station temperature trend
MethodologyAcross 35 complete annual observations from 1904 to 2024, WALTERBORO 1 SW warmed at a fitted rate of 0.09°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Walterboro primary station fitted change +0.09 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 58°F (15°C) | 35°F (2°C) | 47°F (8°C) | 4.0" | 0.0" | 14.1 | 0.0 |
| February | 62°F (17°C) | 38°F (3°C) | 50°F (10°C) | 3.7" | 0.0" | 9.0 | 0.0 |
| March | 69°F (20°C) | 44°F (7°C) | 57°F (14°C) | 3.5" | 0.0" | 4.2 | 0.0 |
| April | 76°F (24°C) | 50°F (10°C) | 63°F (17°C) | 3.6" | 0.0" | 0.3 | 0.6 |
| May | 83°F (28°C) | 60°F (15°C) | 71°F (22°C) | 3.6" | 0.0" | 0.0 | 5.2 |
| June | 87°F (31°C) | 68°F (20°C) | 78°F (25°C) | 5.6" | 0.0" | 0.0 | 14.1 |
| July | 91°F (33°C) | 71°F (22°C) | 81°F (27°C) | 5.2" | 0.0" | 0.0 | 20.9 |
| August | 89°F (32°C) | 70°F (21°C) | 80°F (26°C) | 7.2" | 0.0" | 0.0 | 18.3 |
| September | 84°F (29°C) | 65°F (18°C) | 75°F (24°C) | 4.6" | 0.0" | 0.0 | 7.0 |
| October | 76°F (25°C) | 53°F (12°C) | 65°F (18°C) | 3.7" | 0.0" | 0.6 | 0.4 |
| November | 68°F (20°C) | 42°F (6°C) | 55°F (13°C) | 3.1" | 0.0" | 4.9 | 0.0 |
| December | 61°F (16°C) | 38°F (3°C) | 50°F (10°C) | 3.6" | 0.0" | 11.3 | 0.0 |
The year, day by day
The year in Walterboro runs from a mild 35°F around January 18 to 91°F at the peak near July 16, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from July 4 through August 6, covering 34 dates. The broader mild season, normal highs of 70°F or more, runs March 22 to November 6.
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 35°F around January 18.
Where the wet dates fall
The likeliest wet date is August 10, when 38% of years recorded at least a hundredth of an inch. The driest is October 28 at 19%. Summed across the calendar, that is about 99 wet dates a year.
The widest day
April 18 carries the biggest normal gap between afternoon and dawn, 26°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Walterboro.
Where Walterboro Stands Nationally
The normal water year runs well above the national norm at roughly 51 inches.
Walterboro 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 and snowfall
8.4 days with precipitation
7.9 days with precipitation
8.0 days with precipitation
6.9 days with precipitation
7.0 days with precipitation
10.1 days with precipitation
10.5 days with precipitation
11.8 days with precipitation
8.1 days with precipitation
6.1 days with precipitation
6.2 days with precipitation
7.9 days with precipitation
Walterboro runs a summer-peaked wet season
35% of Walterboro'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 August at 7.2", on a 34.1°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: August, June, July, taking 35% of the annual total between them.
- Driest month: November at 3.1".
- Winter share: 22% 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.
When it rains in Walterboro, it arrives in quantity
51.4" of precipitation falls across only about 99 wet days here, averaging 0.52 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 99 a year, 27% of all days
- Average depth per wet day
- 0.52 inches
- Most wet days
- August, about 12
- Fewest wet days
- October, about 6
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Walterboro's record shows no measurable snowfall
This station measured snowfall across the 1991-2020 period and recorded none: the annual normal is 0.0 inches. That is a measured zero rather than missing data, which is a meaningful distinction here , most stations in the database simply do not report snow at all, and those pages say nothing about it.
A thirty-year normal of zero describes the typical year at this station. It is not a claim that snow has never fallen in the area.
Frost Dates & Growing Season
First Fall Freeze
November 12
50% probability date
Last Spring Freeze
March 19
50% probability date
Growing Season
238 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,322
Higher = more heating needed
Cooling Degree Days
2,016
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside SC closest to Walterboro 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 (51.4" here), excluding temperature-peer places.
- Shreveport, LA 51.4" · 0.0" off
- Hardy, AR 51.4" · 0.0" off
- Mannington, WV 51.4" · 0.0" off
- Palm Coast, FL 51.4" · 0.0" off
Data-derived climate profile
How Walterboro's climate pattern fits together
mixed demand · wet · mid swing
Water is prominent even though neither heating nor cooling wholly defines the record. Walterboro averages 51.4 inches of precipitation a year. Recorded annual snowfall is negligible. 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 Walterboro's middle-range seasonal profile. The measured spread is 34.1°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 Walterboro's normal, at 2,322 and 2,016 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.
A roughly 238-day frost-free season sits inside this mixed heating-and-cooling profile. Start and end dates matter because both sides of the thermostat register during a normal year.
These labels group NOAA 1991-2020 normals from Walterboro'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 Walterboro, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about Walterboro's climate
How much rain does Walterboro get? ▼
How many days above 90°F does Walterboro get? ▼
How much energy does heating and cooling require in Walterboro? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Walterboro's primary station: WALTERBORO 1 SW (USC00388922). 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 an incorporated place (GEOID 4574275). Match rule for Walterboro: 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 Walterboro 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.