Winnsboro, 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 Winnsboro's primary NOAA station, WINNSBORO.
The climate verdict for Winnsboro
Water is the standout signal in Winnsboro, South Carolina: 45.1 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 61°F. It scores 93/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 93% of them.
- 61°F
- annual average temperature (NOAA normal)
- 93/100
- comfort score, above 93% of station-mapped location scores
- 45.1"
- precipitation, annual total
- 220 days
- frost-free days per growing season
Winnsboro: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00389327 · Winnsboro, SC 61°F mean · 45.1" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 61°F
- RANK-UPPER #5,352
- PHOTO-FINISH ≈ Altus Dam
- PRCP-MID 45.1"
- SWING-MID 38°F
- COMF-TOP 93/100
- LOAD-MIX H/C balanced
- STN-1 USC00389327
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Altus Dam, OK (+ 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.
- Winnsboro (this station) 61°F
- Hot Avalon Catalina, CA 61°F
- Near Altus Dam, OK 61°F
- Near Ames Plantation, TN 61°F
- Near Auburn, CA 61°F
Climate Living Index · Winnsboro
Winnsboro: 79/100 · grade B
Winnsboro publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Winnsboro, not an official NOAA rating. Rankings still use Comfort Score 93/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Snowfall burden | 0.0 inches/year | 90/100 · A |
| Normal heat + freeze calendar | 80 calendar days | 82/100 · B |
| Annual temperature balance | 61.2°F · 6.3° from 67.5°F | 80/100 · B |
| Frost-free season | 220 days/year | 77/100 · B |
| Precipitation balance | 45.1 in · 10.1 from 35 in | 64/100 · C |
Winnsboro · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Winnsboro is a temperate Köppen climate: Cfa
Coldest-month mean 42.0°F and warmest-month mean 80.0°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
- 80.0°F
- Coldest month
- 42.0°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 Winnsboro sits across the climate record
Three NOAA fields for Winnsboro's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 22% warmest
- Among 6,861 stations, Winnsboro sits in the warmer third of annual means.
- Annual precipitation
- 69th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Narrower than 73%
- Warmest-to-coldest month gap for Winnsboro is compact versus 6,861 complete station-years.
How Winnsboro compares across U.S. station-mapped locations
Winnsboro's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
93 Top 7% score exceeds 93% 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
Winnsboro's measured station temperature trend
MethodologyAcross 78 complete annual observations from 1888 to 2025, WINNSBORO warmed at a fitted rate of 0.02°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Winnsboro primary station fitted change +0.02 °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 | 53°F (12°C) | 31°F (-1°C) | 42°F (6°C) | 4.0" | 0.0" | 17.2 | 0.0 |
| February | 57°F (14°C) | 33°F (1°C) | 45°F (7°C) | 3.6" | 0.0" | 12.8 | 0.0 |
| March | 65°F (18°C) | 40°F (4°C) | 52°F (11°C) | 4.0" | 0.0" | 7.3 | 0.0 |
| April | 74°F (23°C) | 48°F (9°C) | 61°F (16°C) | 3.1" | 0.0" | 0.4 | 0.4 |
| May | 81°F (27°C) | 57°F (14°C) | 69°F (21°C) | 3.1" | 0.0" | 0.0 | 3.6 |
| June | 88°F (31°C) | 65°F (18°C) | 76°F (25°C) | 4.0" | 0.0" | 0.0 | 13.2 |
| July | 91°F (33°C) | 69°F (21°C) | 80°F (27°C) | 4.1" | 0.0" | 0.0 | 21.7 |
| August | 89°F (32°C) | 68°F (20°C) | 78°F (26°C) | 4.7" | 0.0" | 0.0 | 16.2 |
| September | 83°F (29°C) | 62°F (17°C) | 73°F (23°C) | 3.9" | 0.0" | 0.0 | 6.7 |
| October | 74°F (23°C) | 50°F (10°C) | 62°F (17°C) | 3.3" | 0.0" | 0.5 | 0.3 |
| November | 63°F (17°C) | 39°F (4°C) | 51°F (11°C) | 3.2" | 0.0" | 6.9 | 0.0 |
| December | 55°F (13°C) | 34°F (1°C) | 45°F (7°C) | 4.1" | 0.0" | 14.6 | 0.0 |
The year, day by day
Winnsboro works both ends of the calendar. Normal highs climb to 91°F by July 11 and hold at or above 90°F on 40 dates, then normal lows drop to freezing or below on 40 dates, bottoming at 31°F around January 15.
When the heat sits
Normal highs reach 90°F from June 27 through August 5, covering 40 dates. The broader mild season, normal highs of 70°F or more, runs April 2 to October 26.
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.
The freezing stretch
The normal low stays at or below 32°F into February 6, then returns to freezing around December 29, covering 40 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is August 2, when 36% of years recorded at least a hundredth of an inch. The driest is October 18 at 24%. Summed across the calendar, that is about 112 wet dates a year.
The widest day
April 3 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 Winnsboro.
Monthly Precipitation
Average monthly rainfall and snowfall
10.6 days with precipitation
9.8 days with precipitation
9.2 days with precipitation
8.6 days with precipitation
8.4 days with precipitation
10.1 days with precipitation
9.9 days with precipitation
11.0 days with precipitation
8.0 days with precipitation
7.1 days with precipitation
8.5 days with precipitation
10.6 days with precipitation
Winnsboro spreads its precipitation across the year
Neither half of the year dominates here: June through August take 28% of the annual total and December through February 26%, with neither reaching the 35% that would mark a distinct wet season. Winnsboro has no dry season to plan around, though it does carry a 38°F seasonal spread.
The gap between the wettest and driest month still matters: August averages 4.7" and May 3.1". The three wettest months together take 29% 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.
When it rains in Winnsboro, it arrives in quantity
45.1" of precipitation falls across only about 112 wet days here, averaging 0.40 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 112 a year, 31% of all days
- Average depth per wet day
- 0.40 inches
- Most wet days
- August, about 11
- Fewest wet days
- October, about 7
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.
Winnsboro'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 6
50% probability date
Last Spring Freeze
March 31
50% probability date
Growing Season
220 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,107
Higher = more heating needed
Cooling Degree Days
1,750
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside SC closest to Winnsboro 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 (61°F here).
- Auburn, CA 61°F · 0.0°F off
- Camp Hill, AL 61°F · 0.0°F off
- Chickamauga, GA 61°F · 0.0°F off
- Dallas, GA 61°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (45.1" here), excluding temperature-peer places.
- Hawley, PA 45.1" · 0.0" off
- Phoenixville, PA 45.1" · 0.0" off
- Newport News, VA 45.1" · 0.0" off
- Farmington, MO 45.2" · 0.0" off
Data-derived climate profile
How Winnsboro's climate pattern fits together
mixed demand · wet · mid swing
Water is prominent even though neither heating nor cooling wholly defines the record. Winnsboro averages 45.1 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 Winnsboro's middle-range seasonal profile. The measured spread is 38.0°F. The annual average is 61°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Heating and cooling both register in Winnsboro's normal, at 3,107 and 1,750 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 220-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 Winnsboro'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 Winnsboro, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about Winnsboro's climate
How much rain does Winnsboro get? ▼
How many days above 90°F does Winnsboro get? ▼
How much energy does heating and cooling require in Winnsboro? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Winnsboro's primary station: WINNSBORO (USC00389327). 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 4578460). Match rule for Winnsboro: 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 Winnsboro 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.