Hail History

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Hail history for Flossmoor, IL

Last hail within 10 milesJul 27, 20261 in (quarter)
Hail days, last 12 months2
Largest hail since 20062.5 in (tennis ball)Jun 28, 2012
Hail days since 200643
Days with hail 1 inch or larger24
Tornadoes within 10 miles28
Damaging wind reports within 10 miles321

Hail has been reported within 10 miles of Flossmoor on 43 days since 2006. The largest stones measured 2.5 in (tennis ball) on Jun 28, 2012. Hail is most common here in June and May.

Recent hail near Flossmoor

DateHail sizeWhereSource
Jul 27, 20261.75 in
golf ball		Tinley Park, Mokena, Park Forest
7 hail reports · closest 4 mi from Flossmoor		NWS storm report (preliminary)
Mar 26, 20261 in
quarter		Orland Park, Crestwood
2 hail reports · closest 7 mi from Flossmoor		NOAA Storm Events
Sep 21, 20251.25 in
half dollar		Matteson
1 hail report · closest 3 mi from Flossmoor		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 Flossmoor by year

60620720820921051141241311411516317183191202122123324125226

When hail season peaks near Flossmoor

Of the 43 hail days since 2006, most fell in June (12) and May (11).

1Jan2Feb5Mar2Apr11May12Jun5Jul1Aug2Sep2OctNovDec

Largest hail storms near Flossmoor

Jun 28, 2012 · 2.5 in (tennis ball) · Dyer (9 mi from Flossmoor)

National Weather Service description (English): There were multiple reports of hail of two inches or greater near Dyer, including at least one report of tennis ball size hail.

May 20, 2014 · 2 in (hen egg) · Calumet (2 mi from Flossmoor)

National Weather Service description (English): Multiple reports of hail up to two inches came in from near Homewood.

Jun 10, 2020 · 2 in (hen egg) · Lansing Municipal Airport (9 mi from Flossmoor)

National Weather Service description (English): Wind blown hail up to 2 inches in diameter lasted for 5 minutes and shattered a wind shield along Sauk Trail between Sauk Village and Dyer.

Feb 27, 2024 · 2 in (hen egg) · Oak Forest (6 mi from Flossmoor)

May 7, 2024 · 2 in (hen egg) · Tinley Park (7 mi from Flossmoor)

Tornadoes within 10 miles of Flossmoor

DateRatingWherePath
Aug 11, 2026EF?Homewood
2 mi from Flossmoor
Jul 30, 2026EF?Glenwood
5 mi from Flossmoor
Jul 27, 2026EF?Glenwood
5 mi from Flossmoor
Jul 27, 2026EF?Hazel Crest
3 mi from Flossmoor
Jul 27, 2026EF?Markham
3 mi from Flossmoor
Jul 27, 2026EF?Glenwood
5 mi from Flossmoor
Jul 27, 2026EF?Hazel Crest
3 mi from Flossmoor
Jun 10, 2026EF0Crestwood
10 mi from Flossmoor		1.5 mi long, 175 yd wide
Mar 19, 2025EF0Lincoln Estates
7 mi from Flossmoor		0.3 mi long, 75 yd wide
Mar 19, 2025EF1Steger
6 mi from Flossmoor		1.6 mi long, 90 yd wide
Mar 19, 2025EF0Lynwood
7 mi from Flossmoor		0.3 mi long, 50 yd wide
Jul 15, 2024EF2Matteson
6 mi from Flossmoor		3.1 mi long, 325 yd wide

Damaging thunderstorm winds near Flossmoor

321 reports of damaging thunderstorm wind within 10 miles of Flossmoor since 2006, on 87 days. The strongest measured gust was 91 mph on Aug 11, 2026.

DateStrongest gustWhereSource
Aug 12, 2026damage reportedFrankfort, Crete, Flossmoor
4 wind reports		NWS storm report (preliminary)
Aug 11, 202691 mph, measuredMokena, Munster, Frankfort
31 wind reports		NWS storm report (preliminary)
Aug 9, 2026damage reportedPosen, Hammond
3 wind reports		NWS storm report (preliminary)
Jul 28, 2026damage reportedFord Heights
1 wind report		NWS storm report (preliminary)
Jul 27, 202668 mph, measuredOak Forest, Frankfort, Monee
44 wind reports		NWS storm report (preliminary)
Jul 10, 2026damage reportedSteger
1 wind report		NWS storm report (preliminary)
Jul 4, 2026damage reportedGlenwood
1 wind report		NWS storm report (preliminary)
Jul 3, 202659 mph, measuredLynwood, Tinley Park, Dyer
9 wind reports		NWS storm report (preliminary)
Jun 14, 202663 mph, estimatedSouth Holland
1 wind report		NOAA Storm Events
Jun 13, 202675 mph, estimatedCalumet City
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 Flossmoor; 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 Flossmoor.

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