Hail History

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Hail history for Swansea, IL

Last hail within 10 milesApr 27, 20261 in (quarter)
Hail days, last 12 months1
Largest hail since 20063.5 inApr 28, 2012
Hail days since 200671
Days with hail 1 inch or larger48
Tornadoes within 10 miles12
Damaging wind reports within 10 miles128

Hail has been reported within 10 miles of Swansea on 71 days since 2006. The largest stones measured 3.5 in on Apr 28, 2012. Hail is most common here in May and April.

Recent hail near Swansea

DateHail sizeWhereSource
Apr 27, 20261 in
quarter		Belleville
1 hail report · closest 2 mi from Swansea		NOAA Storm Events
Apr 2, 20251.75 in
golf ball		Willard, French Vlg
2 hail reports · closest 5 mi from Swansea		NOAA Storm Events
Mar 30, 20251 in
quarter		Imbs, Atlee Ogles
2 hail reports · closest 3 mi from Swansea		NOAA Storm Events
Mar 14, 20251.75 in
golf ball		O Fallon, Imbs, Willard
9 hail reports · closest 5 mi from Swansea		NOAA Storm Events

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

Hail days near Swansea by year

70650740830951031171221331431531651721851920121222423324325126

When hail season peaks near Swansea

Of the 71 hail days since 2006, most fell in May (21) and April (19).

1Jan1Feb7Mar19Apr21May6Jun6Jul3Aug2Sep3Oct1Nov1Dec

Largest hail storms near Swansea

Apr 28, 2012 · 3.5 in · Carbon (5 mi from Swansea)

National Weather Service description (English): There were numerous reports of large hail across O'Fallon. The largest hail stones were three and a half inches by two inch disc shaped stones. Baseball sized hail was reported at Scott Air Force Base.

Jul 17, 2023 · 2.5 in (tennis ball) · Centerville (8 mi from Swansea)

National Weather Service description (English): Large hail up to tennis ball size was reported in St. Clair County, in the Centreville, Signal Hill and Belleville areas.

Apr 30, 2019 · 2 in (hen egg) · Collinsville (9 mi from Swansea)

National Weather Service description (English): Another severe storm moved through the southern half of Madison County dropping large hail between Collinsville and Troy. The largest hail stones reported were 2 inches in diameter.

May 24, 2006 · 1.75 in (golf ball) · Belleville (1 mi from Swansea)

May 30, 2008 · 1.75 in (golf ball) · Belleville (3 mi from Swansea)

National Weather Service description (English): Amateur radio spotters reported hail up to golfball size.

Tornadoes within 10 miles of Swansea

DateRatingWherePath
Apr 27, 2026EF1Scott AFB Belle
10 mi from Swansea		5.8 mi long, 350 yd wide
Apr 20, 2025EF0Floraville
9 mi from Swansea		0.8 mi long, 100 yd wide
Mar 14, 2025EF1O Fallon
8 mi from Swansea		5.9 mi long, 450 yd wide
Apr 15, 2023EF0Signal Hill
5 mi from Swansea		0.6 mi long, 100 yd wide
Apr 15, 2023EF?Collinsville
10 mi from Swansea		0.2 mi long, 25 yd wide
Apr 15, 2023EF0Belleville
1 mi from Swansea		1.1 mi long, 90 yd wide
Apr 15, 2023EF1Belleville
1 mi from Swansea		3.0 mi long, 200 yd wide
Jun 12, 2019EF0Sugarloaf Hgts
10 mi from Swansea		0.5 mi long, 10 yd wide
Jun 13, 2016EF0Roachtown
5 mi from Swansea		0.4 mi long, 25 yd wide
Oct 13, 2014EF1Wilderman
6 mi from Swansea		1.4 mi long, 100 yd wide
Jun 8, 2009EF2Shiloh
4 mi from Swansea		11.8 mi long, 176 yd wide
Apr 2, 2006F2Fairview Hgts
2 mi from Swansea		7.0 mi long, 100 yd wide

Damaging thunderstorm winds near Swansea

128 reports of damaging thunderstorm wind within 10 miles of Swansea since 2006, on 94 days. The strongest measured gust was 77 mph on Jun 10, 2009.

DateStrongest gustWhereSource
Apr 27, 202658 mph, estimatedBelleville
1 wind report		NOAA Storm Events
Jul 6, 202574 mph, estimatedCaseyville
1 wind report		NOAA Storm Events
May 16, 202569 mph, estimatedEast Swansea
1 wind report		NOAA Storm Events
Apr 20, 202569 mph, estimatedBelleville
1 wind report		NOAA Storm Events
Apr 19, 202563 mph, estimatedFreeburg
1 wind report		NOAA Storm Events
Apr 2, 202564 mph, measuredEast Stl Airport, Atlee Ogles
2 wind reports		NOAA Storm Events
Mar 14, 202586 mph, estimatedO Fallon, Shiloh Station, Stolle
8 wind reports		NOAA Storm Events
Mar 14, 202460 mph, measuredFreeburg
1 wind report		NOAA Storm Events
Aug 25, 202370 mph, estimatedBelleville
1 wind report		NOAA Storm Events
Aug 6, 202362 mph, measuredScott AFB Belle
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 Swansea; 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 Swansea.

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