Hail History

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Hail history for Posen, IL

Last hail within 10 milesJul 27, 20261.5 in (ping pong ball)
Hail days, last 12 months2
Largest hail since 20062.75 in (baseball)Jul 13, 2015
Hail days since 200647
Days with hail 1 inch or larger32
Tornadoes within 10 miles20
Damaging wind reports within 10 miles397

Hail has been reported within 10 miles of Posen on 47 days since 2006. The largest stones measured 2.75 in (baseball) on Jul 13, 2015. Hail is most common here in May and June.

Recent hail near Posen

DateHail sizeWhereSource
Jul 27, 20261.75 in
golf ball		Tinley Park, Greater Grand Cross, Oak Forest
8 hail reports · closest 3 mi from Posen		NWS storm report (preliminary)
Mar 26, 20261 in
quarter		Orland Park, Crestwood
2 hail reports · closest 3 mi from Posen		NOAA Storm Events
Sep 21, 20251.25 in
half dollar		Matteson
1 hail report · closest 9 mi from Posen		NOAA Storm Events
Mar 19, 20251 in
quarter		Oak Lawn, Hometown
2 hail reports · closest 7 mi from Posen		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 Posen by year

50620720810921061131271331421516317183191202122123224225226

When hail season peaks near Posen

Of the 47 hail days since 2006, most fell in May (12) and June (12).

1Jan2Feb5Mar4Apr12May12Jun3Jul2Aug2Sep3Oct1NovDec

Largest hail storms near Posen

Jul 13, 2015 · 2.75 in (baseball) · Calumet City (9 mi from Posen)

National Weather Service description (English): Baseball size hail was reported on the 3900 Block of Hohman Avenue. Golfball size hail was reported at Indianapolis Boulevard and Michigan Street.

May 20, 2014 · 2 in (hen egg) · Calumet (5 mi from Posen)

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

Feb 27, 2024 · 2 in (hen egg) · Oak Forest (4 mi from Posen)

National Weather Service description (English): A photo shared via social media showed hail in Chicago's Hegeswisch neighborhood. The biggest stones were roughly the size of golf balls.

May 7, 2024 · 2 in (hen egg) · Tinley Park (6 mi from Posen)

May 29, 2006 · 1.75 in (golf ball) · Posen (1 mi from Posen)

National Weather Service description (English): Golf ball size hail broke the front windshield of a police car.

Tornadoes within 10 miles of Posen

DateRatingWherePath
Aug 11, 2026EF?Homewood
6 mi from Posen
Jul 30, 2026EF?Glenwood
8 mi from Posen
Jul 27, 2026EF?Orland Park
9 mi from Posen
Jul 27, 2026EF?Glenwood
8 mi from Posen
Jul 27, 2026EF?Hazel Crest
4 mi from Posen
Jul 27, 2026EF?Markham
3 mi from Posen
Jul 27, 2026EF?Glenwood
8 mi from Posen
Jul 27, 2026EF?Hazel Crest
4 mi from Posen
Jun 10, 2026EF0Crestwood
5 mi from Posen		1.5 mi long, 175 yd wide
Jul 15, 2024EF0Palos Heights
6 mi from Posen		5.7 mi long, 300 yd wide
Jul 15, 2024EF0Oak Forest
5 mi from Posen		0.4 mi long, 85 yd wide
Jul 15, 2024EF1Flossmoor
7 mi from Posen		5.5 mi long, 250 yd wide

Damaging thunderstorm winds near Posen

397 reports of damaging thunderstorm wind within 10 miles of Posen since 2006, on 105 days. The strongest measured gust was 96 mph on Feb 28, 2017.

DateStrongest gustWhereSource
Aug 12, 2026damage reportedFlossmoor, Hammond
2 wind reports		NWS storm report (preliminary)
Aug 11, 202670 mph, measuredOak Lawn, Oak Forest, South Chicago
24 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, 202674 mph, measuredMidway Airport, Oak Forest, Palos Park
35 wind reports		NWS storm report (preliminary)
Jul 4, 2026damage reportedGlenwood
1 wind report		NWS storm report (preliminary)
Jul 3, 202670 mph, measuredBurbank, Midway Airport, Tinley Park
11 wind reports		NWS storm report (preliminary)
Jun 24, 202669 mph, estimatedEvergreen Park, Calumet City, Washington Heights
5 wind reports		NOAA Storm Events
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 Posen; 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 Posen.

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