Photo: Evanoco · CC BY 4.0Winnsboro has warmer summer afternoons than 86% of U.S. towns
Nights in January average 33°. Winters are mild: January nights here are milder than in 77% of U.S. towns. The latest 30-year average runs 0.7° warmer than 1901–2000’s, with December up the most. Keep the boiler serviced for the months from December to February, which average under 50°.
A year in Winnsboro at a glance
Each month’s typical high and low, and what it brings.
What stands out about Winnsboro’s climate
Compared with towns across the U.S., with Winnsboro’s place in South Carolina beside it.
What a year in Winnsboro feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 221 frost-free days a year
In half of years the last 32° night comes by March 31 and the first by November 6. Frost and day counts come from NOAA’s station at Winnsboro, SC, 0.7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Winnsboro’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 15°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 45 inches of rain a year
August is the wettest month and May the driest. Rain falls on about 112 days a year. Snow is rare: about 0.0" in a normal year at Winnsboro, SC, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Winnsboro
64% of the work is heating. Months averaging under 55° run from November through March.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Winnsboro, SC.
Living with Winnsboro’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
221 frost-free days in zone 8a. The last frost comes by Mar 31 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 6.
Months with highs of 62–84° and lows of 40° or more: March, April, May, October and November. 0.7 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Winnsboro from natural hazards, river flooding is the largest share (30%); heat waves, cold waves, winter storms and ice storms together are 20%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Winnsboro and similar climates
TownRatings has no climate map of the towns around Winnsboro yet.
Climates most like Winnsboro’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Winnsboro, SC | 33° | 92° | 45" | 0.0" |
| Macon-Bibb County, GA | 35° | 92° | 47" | 0.0" |
| Whitehouse, TX | 36° | 93° | 46" | 0.2" |
| Smithfield, NC | 32° | 91° | 48" | 0.8" |
| Hidden Valley Lake, CA | 36° | 92° | 40" | 0.3" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Winnsboro averaged 0.7° warmer than the 1900s. The biggest change is in December (+1.8°).
A smaller shift than in 92% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Winnsboro compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Winnsboro’s place among South Carolina’s.
Winnsboro weather by month
Highs, lows and precipitation from NOAA’s grid at Winnsboro’s center; snow, wet days and snow on the ground from Winnsboro, SC. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 55° | 33° | 3.8" | 0.0" | 11 | 0 | 38° – 50° |
| February | 59° | 36° | 3.5" | 0.0" | 10 | 0 | 39° – 56° |
| March | 66° | 42° | 4.0" | 0.0" | 9 | 0 | 47° – 63° |
| April | 75° | 49° | 3.1" | 0.0" | 9 | 0 | 58° – 67° |
| May | 82° | 58° | 3.1" | 0.0" | 8 | 0 | 65° – 75° |
| June | 88° | 66° | 4.1" | 0.0" | 10 | 0 | 72° – 81° |
| July | 92° | 70° | 4.3" | 0.0" | 10 | 0 | 78° – 85° |
| August | 90° | 69° | 4.7" | 0.0" | 11 | 0 | 76° – 85° |
| September | 84° | 63° | 4.0" | 0.0" | 8 | 0 | 71° – 79° |
| October | 74° | 51° | 3.4" | 0.0" | 7 | 0 | 59° – 68° |
| November | 64° | 41° | 3.2" | 0.0" | 9 | 0 | 48° – 58° |
| December | 57° | 35° | 4.1" | 0.0" | 11 | 0 | 37° – 57° |
| Year | 74° | 51° | 45.1" | 0.0" | 112 | 0 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 37° to 57°. July is the most reliable, staying within 7°.
Where Winnsboro’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Winnsboro’s center.
- Snow: Winnsboro, SC (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Winnsboro, SC, 0.7 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Winnsboro’s climate
What is the weather like in Winnsboro?
A typical July afternoon reaches 92°, a January night drops to 33°, and snow is almost unheard of. Milder January nights than 77% of U.S. towns; hotter July afternoons than 86% of U.S. towns.
How cold does it get in Winnsboro in winter?
January nights average 33°. About 60 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 38°.
How much snow does Winnsboro get?
About 0.0 inches in a normal winter at Winnsboro, SC, so most winters see none.
How hot does it get in Winnsboro?
July, with a typical high of 92° and a low of 70°. About 62 days a year reach 90° and 3 reach 100° (Winnsboro, SC).
When is the first and last frost in Winnsboro?
In half of years the last spring frost (32°) comes by March 31 and the first fall frost by November 6, about 221 frost-free days, at Winnsboro, SC.
What growing zone is Winnsboro in?
Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 15°.
What is the best time of year to visit Winnsboro?
By one simple rule (highs of 62–84° and lows of 40° or more), March, April, May, October and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Winnsboro getting warmer?
Yes: 1991–2020 averaged 0.7° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 92% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Winnsboro.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.