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Weather & Climate in West Union, SC

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

West Union enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 41°F in January while summers reach 78°F in July. The area gets 302 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 61.1 inches (wetter than the 38-inch national average). The area receives 2.2 inches of snow annually. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 963 feet.

Temperature

41°F Jan (5°C) 78°F Jul (25°C)
Annual Average59.2°F
10% above US avg
January Average41°F (5°C)
July Average78°F (25°C)
Sunny Days302 days/yr

Geography

Elevation963 ft (294 m)
Area0.8 sq mi (2.0 km²)
Population Density501/sq mi
Coordinates34.7560°N, 83.0441°W
TimezoneAmerica/New_York
CountyOconee County County
Nearest AirportOconee County Regional (CEU)
11 miles away

Precipitation & Snow

Annual Rainfall 61.1"
61% above US avg
Snowfall 2.2"
Wettest Month (Mar) 6.22"
Driest Month (Apr) 4.37"

Air Quality

AQI Median43.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score85.6 / 100
Social Vulnerability70.5 / 100
Community Resilience42.1 / 100

Hazard Breakdown

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

Earthquake History

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

May 10, 2025 21 km SE of Greenback, Tennessee M4.1 123 km 25 km
Feb 15, 2014 12 km ENE of Parksville, South Carolina M4.1 136 km 5 km
Jul 5, 1995 12 km ESE of Tellico Plains, Tennessee M3.7 120 km 10 km
Mar 18, 2003 11 km S of Rayle, Georgia M3.5 120 km 5 km
Jun 16, 2006 9 km W of Maggie Valley, North Carolina M3.4 85 km 1 km
Jan 3, 1992 4 km ENE of Willington, South Carolina M3.4 103 km 3 km
Apr 20, 2010 4 km SW of Maryville, Tennessee M3.3 138 km 2 km
Apr 11, 2006 5 km NE of Etowah, Tennessee M3.3 147 km 20 km
Jun 4, 2023 4 km NNW of West Canton, North Carolina M3.2 93 km 0 km
Aug 1, 2009 8 km ENE of Ducktown, Tennessee M3.2 119 km 5 km
Jul 26, 2001 11 km S of New Market, Tennessee M3.2 146 km 17 km
Jul 26, 2001 11 km N of Sevierville, Tennessee M3.2 143 km 14 km
Aug 23, 2025 3 km N of Coronaca, South Carolina M3.0 101 km 2 km
Sep 24, 1991 6 km NE of Greenback, Tennessee M3.0 143 km 13 km
Nov 10, 1992 4 km ESE of Greenback, Tennessee M3.0 140 km 10 km
Aug 4, 2007 12 km ENE of Lake Lure, North Carolina M3.0 119 km 9 km
Feb 16, 2014 13 km WNW of Edgefield, South Carolina M3.0 137 km 7 km
Nov 24, 2012 7 km NE of Sevierville, Tennessee M3.0 136 km 7 km
May 29, 1991 5 km N of Tellico Plains, Tennessee M2.9 135 km 22 km
Jul 11, 1990 1 km NW of Alcoa, Tennessee M2.9 144 km 17 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Hurricane History

1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.

Year Name Category Max Wind Closest
1989 Hugo Category 4 138 mph 178 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).

Tornado History

357 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 28 fatalities, 657 injuries.

Date Rating Distance Path Fatalities
Mar 31, 1973 EF4 87 km 22.6 mi 7
Apr 13, 2020 EF3 16 km 16.7 mi 1
Apr 27, 2011 EF3 83 km 37.0 mi 1
Mar 20, 1998 EF3 89 km 4.0 mi 12
Mar 27, 1994 EF3 93 km 23.0 mi 3
Mar 27, 1994 EF3 35 km 28.0 mi 0
Nov 22, 1992 EF3 84 km 10.0 mi 1
Nov 15, 1989 EF3 53 km 8.0 mi 0
Apr 8, 1974 EF3 46 km 1.0 mi 0
Dec 13, 1973 EF3 91 km 9.5 mi 0
Dec 13, 1973 EF3 97 km 10.7 mi 0
May 27, 1973 EF3 56 km 60.2 mi 0
May 10, 1952 EF3 73 km 22.7 mi 2
Mar 23, 2022 EF2 23 km 6.3 mi 0
May 3, 2021 EF2 72 km 29.4 mi 0
Apr 25, 2020 EF2 61 km 5.5 mi 0
Apr 13, 2020 EF2 42 km 8.0 mi 0
Oct 23, 2017 EF2 99 km 3.0 mi 0
Oct 8, 2017 EF2 26 km 8.4 mi 0
Apr 10, 2009 EF2 82 km 6.7 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: ROCK MOUNTAIN (25,224 acres, 2016).

Year Name Acres Burned Distance
2016 ROCK MOUNTAIN 25,224 51 km
2016 TELLICO 14,172 78 km
2016 BOTELER 8,626 67 km
2016 PINNACLE MOUNTAIN 7,869 44 km
2001 SHARP 6,039 91 km
2016 CAMP BRANCH 3,234 66 km
2023 PANTHER KNOB 3,170 63 km
1998 FOURNEY CREEK 2,579 93 km
2020 CHAMBERS-GRAPE-HICKORY AP 2,421 15 km
2021 UNNAMED 2,201 45 km
2010 BRAMLETT RIDGE 2,200 53 km
2023 BRAMLETT RIDGE FY 23 2,172 53 km
2018 UNNAMED 2,133 53 km
2016 UNNAMED 2,087 81 km
2023 TRAIL RIDGE FY23 2,085 68 km
2013 UNNAMED 1,998 68 km
2014 UNNAMED 1,911 53 km
2020 PARSONS MTN SOUTH LC 1,878 99 km
2021 UNNAMED 1,855 81 km
2014 UNNAMED 1,803 45 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 41°F (5°C) 5.8 in Coldest
February 44°F (7°C) 5.2 in
March 51°F (11°C) 6.2 in Wettest
April 59°F (15°C) 4.4 in Driest
May 66°F (19°C) 5.3 in
June 74°F (23°C) 4.5 in
July 78°F (25°C) 4.8 in Warmest
August 76°F (25°C) 5.1 in
September 71°F (21°C) 4.6 in
October 60°F (15°C) 4.5 in
November 51°F (10°C) 4.8 in
December 43°F (6°C) 5.0 in

West Union has a seasonal temperature swing of 37°F / from 41°F in January to 78°F in July. Total annual precipitation is 60.2 inches, with March being the wettest month (6.2") and April the driest (4.4").

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