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Hail history for Duncan, SC

Last hail within 10 milesAug 11, 20261 in (quarter)

Hail days, last 12 months1

Largest hail since 20063 in (tea cup)Mar 21, 2017

Hail days since 200667

Days with hail 1 inch or larger41

Tornadoes within 10 miles6

Damaging wind reports within 10 miles152

Hail has been reported within 10 miles of Duncan on 67 days since 2006. The largest stones measured 3 in (tea cup) on Mar 21, 2017. Hail is most common here in June and May.

Recent hail near Duncan

Date	Hail size	Where	Source
Aug 11, 2026	1 in quarter	Greer 2 hail reports · closest 7 mi from Duncan	NWS storm report (preliminary)

One row per day: the largest hail reported that day within 10 miles, the places and the number of reports.

Hail days near Duncan by year

When hail season peaks near Duncan

Of the 67 hail days since 2006, most fell in June (23) and May (11).

Largest hail storms near Duncan

Mar 21, 2017 · 3 in (tea cup) · Grnvl Sprtnbrg Airport (6 mi from Duncan)

National Weather Service description (English): Public (via Social Media) reported 3-inch diameter hail on I-85 just south of the GSP Airport.

May 23, 2014 · 2.5 in (tennis ball) · Moore (10 mi from Duncan)

National Weather Service description (English): Public provided photo evidence of tennis ball size hail in the Moore area.

Sep 9, 2009 · 1.75 in (golf ball) · Inman Mills (8 mi from Duncan)

National Weather Service description (English): Golf ball size hail was reported in Inman Mills.

May 10, 2011 · 1.75 in (golf ball) · Taylors (9 mi from Duncan)

National Weather Service description (English): Hail up to golf ball size fell in a nearly continuous swath from 5 miles southwest of Greer, across the Five Forks and Mauldin areas, ending in Fountain Inn.

Jul 1, 2012 · 1.75 in (golf ball) · Saxon (10 mi from Duncan)

National Weather Service description (English): An intense hail storm slowly back-built over the southwest side of Spartanburg. Quarter to golf ball size hail fell in the West Spartanburg and Roebuck areas. Two |auto dealerships on Reidville Rd just to the west in Interstate 26 had extensive damage to their inventory. Several residences in this area received roof damage from hail as well.

Tornadoes within 10 miles of Duncan

Date	Rating	Where	Path
Dec 29, 2024	EF0	Holly Spgs 7 mi from Duncan	1.7 mi long, 30 yd wide
Apr 10, 2021	EF0	Fairmont 7 mi from Duncan	1.1 mi long, 20 yd wide
Apr 13, 2020	EF0	Jordon 9 mi from Duncan	0.7 mi long, 30 yd wide
Feb 6, 2020	EF1	Clevedale 7 mi from Duncan	10.1 mi long, 100 yd wide
Oct 23, 2017	EF2	Una 9 mi from Duncan	3.0 mi long, 350 yd wide
Jan 5, 2007	F0	Moore 9 mi from Duncan	0.2 mi long, 50 yd wide

Damaging thunderstorm winds near Duncan

152 reports of damaging thunderstorm wind within 10 miles of Duncan since 2006, on 113 days. The strongest measured gust was 58 mph on Jun 18, 2009.

Date	Strongest gust	Where	Source
Sep 18, 2026	damage reported	Taylors, Spartanburg, Inman 3 wind reports	NWS storm report (preliminary)
Sep 6, 2026	damage reported	Lyman, Spartanburg, Roebuck 3 wind reports	NWS storm report (preliminary)
Sep 5, 2026	damage reported	Duncan, Spartanburg 2 wind reports	NWS storm report (preliminary)
Aug 11, 2026	damage reported	Taylors, Greer, Greenville-Sparta 6 wind reports	NWS storm report (preliminary)
Aug 2, 2026	damage reported	Wellford, Boiling Springs S 2 wind reports	NWS storm report (preliminary)
Jun 12, 2026	58 mph, estimated	Jordon 1 wind report	NOAA Storm Events
Mar 16, 2026	58 mph, estimated	Grnvl Sprtnbrg Airport 1 wind report	NOAA Storm Events
Jul 1, 2025	58 mph, estimated	Inman 1 wind report	NOAA Storm Events
Jun 25, 2025	58 mph, estimated	Campton 1 wind report	NOAA Storm Events
Jun 7, 2025	58 mph, estimated	Arlington 1 wind report	NOAA Storm Events

Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.

Filing a roof or car hail claim?

Insurers ask for the date of loss. The dates on this page are when hail was reported near Duncan; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.

Nearby cities

Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then). Distances are measured from the center of Duncan.

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