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Weather & Climate in Windsor, SC

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Windsor enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 45°F in January while summers reach 82°F in July. The area gets 304 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 50.8 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 391 feet.

Temperature

45°F Jan (7°C) 82°F Jul (28°C)
Annual Average64.1°F
19% above US avg
January Average45°F (7°C)
July Average82°F (28°C)
Sunny Days304 days/yr

Geography

Elevation391 ft (119 m)
Area0.9 sq mi (2.3 km²)
Population Density279/sq mi
Coordinates33.4809°N, 81.5137°W
TimezoneAmerica/New_York
CountyAiken County County
Nearest AirportAiken Regional (AIK)
15 miles away

Precipitation & Snow

Annual Rainfall 50.8"
34% above US avg
Snowfall 0.7"
Wettest Month (Aug) 4.96"
Driest Month (Nov) 2.68"

Air Quality

AQI Median43.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score84.2 / 100
Social Vulnerability50.8 / 100
Community Resilience33.2 / 100

Hazard Breakdown

Tornado Relatively Moderate
Hurricane Relatively Moderate
Earthquake Relatively Low
Wildfire Relatively Low
Flood Relatively Moderate
Hail Relatively Moderate
Strong Wind Relatively Moderate
Heat Wave Relatively Moderate
Winter Weather Relatively Low
Lightning Relatively High
Ice Storm Relatively High
Drought Relatively Low
Cold Wave Relatively Moderate
Landslide Relatively Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

76 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.1.

Aug 21, 1992 1 km SSE of Centerville, South Carolina M4.1 137 km 7 km
Feb 15, 2014 12 km ENE of Parksville, South Carolina M4.1 65 km 5 km
Apr 17, 1995 0 km NNW of Centerville, South Carolina M3.9 136 km 8 km
Jun 18, 2022 7 km E of Stillmore, Georgia M3.9 128 km 1 km
Apr 13, 1998 9 km S of Kershaw, South Carolina M3.9 139 km 7 km
Jun 29, 2022 6 km E of Elgin, South Carolina M3.6 105 km 3 km
Jul 13, 2003 6 km N of Cobbtown, Georgia M3.6 140 km 5 km
Jun 29, 2022 6 km E of Elgin, South Carolina M3.5 105 km 3 km
Nov 13, 1990 4 km SSW of Ladson, South Carolina M3.5 141 km 3 km
Mar 18, 2003 11 km S of Rayle, Georgia M3.5 129 km 5 km
Jan 3, 1992 4 km ENE of Willington, South Carolina M3.4 101 km 3 km
Jun 26, 2022 6 km E of Elgin, South Carolina M3.4 106 km 4 km
May 9, 2022 5 km ESE of Elgin, South Carolina M3.3 104 km 4 km
Aug 29, 2009 2 km NE of Summerville, South Carolina M3.2 136 km 5 km
Jun 20, 2017 6 km SW of Augusta, Georgia M3.2 47 km 13 km
Dec 7, 2009 4 km WNW of Deepstep, Georgia M3.2 148 km 7 km
Aug 8, 1993 12 km ENE of Aiken, South Carolina M3.2 15 km 9 km
Jul 20, 2004 7 km WSW of Centerville, South Carolina M3.1 131 km 10 km
May 5, 2003 4 km NNW of Summerville, South Carolina M3.1 132 km 11 km
Aug 23, 2025 3 km N of Coronaca, South Carolina M3.0 105 km 2 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Hurricane History

13 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.

Year Name Category Max Wind Closest
2024 Helene Category 2 109 mph 295 km
2022 Ian Category 1 86 mph 216 km
2020 Isaias Category 1 92 mph 237 km
2019 Dorian Category 3 115 mph 255 km
2018 Florence Category 1 75 mph 294 km
2018 Michael Category 1 92 mph 271 km
2016 Matthew Category 2 98 mph 180 km
2004 Charley Category 1 81 mph 204 km
2004 Gaston Category 1 75 mph 186 km
1999 Irene Category 1 81 mph 274 km
1989 Hugo Category 4 138 mph 113 km
1985 Bob Category 1 75 mph 171 km
1985 Kate Category 1 75 mph 289 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).

Tornado History

468 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 24 fatalities, 423 injuries.

Date Rating Distance Path Fatalities
Apr 13, 2020 EF4 89 km 23.7 mi 5
Dec 13, 1973 EF4 91 km 1.0 mi 2
Apr 5, 2022 EF3 63 km 13.3 mi 0
Apr 5, 2022 EF3 51 km 34.5 mi 0
Apr 13, 2020 EF3 29 km 37.9 mi 0
Apr 13, 2020 EF3 38 km 5.4 mi 0
Apr 13, 2020 EF3 28 km 1.4 mi 0
Apr 13, 2020 EF3 23 km 8.5 mi 0
Apr 13, 2020 EF3 21 km 35.7 mi 2
Apr 10, 2009 EF3 32 km 14.6 mi 0
Apr 10, 2009 EF3 75 km 26.3 mi 0
Apr 10, 2009 EF3 70 km 17.7 mi 0
Mar 15, 2008 EF3 66 km 10.1 mi 0
Mar 15, 2008 EF3 86 km 27.5 mi 0
Apr 15, 2007 EF3 100 km 19.0 mi 1
Dec 10, 2004 EF3 64 km 1.5 mi 0
May 7, 1998 EF3 65 km 5.0 mi 0
May 7, 1998 EF3 56 km 12.0 mi 1
Nov 2, 1995 EF3 54 km 1.5 mi 0
Aug 16, 1994 EF3 56 km 8.0 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (8,427 acres, 2009).

Year Name Acres Burned Distance
2009 UNNAMED 8,427 19 km
2009 UNNAMED 5,322 89 km
2014 UNNAMED 3,897 69 km
2019 UNNAMED 3,772 69 km
2010 UNNAMED 2,968 17 km
2021 C-326/327 LC 2,852 58 km
2010 UNNAMED 2,796 31 km
2008 UNNAMED 2,711 31 km
2013 UNNAMED 2,654 70 km
2010 UNNAMED 2,532 69 km
2008 UNNAMED 2,407 40 km
2010 UNNAMED 2,330 22 km
2018 UNNAMED 2,262 18 km
2009 UNNAMED 2,228 38 km
2009 UNNAMED 2,216 40 km
2020 C-56 RX BURN 2,183 22 km
2018 C- 80 RX BURN 2,173 31 km
2022 C-297 LC 2,060 70 km
2008 UNNAMED 1,848 70 km
2008 UNNAMED 1,794 16 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 45°F (7°C) 4.5 in Coldest
February 48°F (9°C) 4.1 in
March 56°F (13°C) 4.7 in
April 63°F (17°C) 3.0 in
May 70°F (21°C) 3.6 in
June 77°F (25°C) 4.9 in
July 82°F (28°C) 4.7 in Warmest
August 79°F (26°C) 5.0 in Wettest
September 74°F (23°C) 3.4 in
October 64°F (18°C) 3.0 in
November 55°F (13°C) 2.7 in Driest
December 47°F (9°C) 3.5 in

Windsor has a seasonal temperature swing of 37°F / from 45°F in January to 82°F in July. Total annual precipitation is 47.0 inches, with August being the wettest month (5.0") and November the driest (2.7").

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