Hail History

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Hail history for Oswego, IL

Last hail within 10 milesAug 9, 20261 in (quarter)
Hail days, last 12 months4
Largest hail since 20063 in (tea cup)Apr 4, 2023
Hail days since 200648
Days with hail 1 inch or larger37
Tornadoes within 10 miles23
Damaging wind reports within 10 miles314

Hail has been reported within 10 miles of Oswego on 48 days since 2006. The largest stones measured 3 in (tea cup) on Apr 4, 2023. Hail is most common here in June and May.

Oswego ranks #270 for hail days among the 1,399 U.S. cities of 25,000 to 100,000 people. See the ranking →

Recent hail near Oswego

DateHail sizeWhereSource
Aug 9, 20261 in
quarter		Naperville
1 hail report · closest 9 mi from Oswego		NWS storm report (preliminary)
Jul 27, 20261.75 in
golf ball		Plainfield
1 hail report · closest 9 mi from Oswego		NWS storm report (preliminary)
Mar 30, 20261.25 in
half dollar		Montgomery, Yorkville, Bristol
8 hail reports · closest 2 mi from Oswego		NOAA Storm Events
Mar 10, 20261.5 in
ping pong ball		Plainfield, Aurora Municipal Airport, Plano
6 hail reports · closest 6 mi from Oswego		NOAA Storm Events
Aug 16, 20251.5 in
ping pong ball		Naperville
1 hail report · closest 9 mi from Oswego		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 Oswego by year

40620710810921041131251321411516317218419220121122323224125426

When hail season peaks near Oswego

Of the 48 hail days since 2006, most fell in June (12) and May (8).

Jan1Feb4Mar7Apr8May12Jun5Jul8Aug1Sep1Oct1NovDec

Largest hail storms near Oswego

Apr 4, 2023 · 3 in (tea cup) · Boulder Hill (1 mi from Oswego)

National Weather Service description (English): Three inch diameter hail was reported at Dolores Street and Charles Court.

Sep 11, 2013 · 2 in (hen egg) · Plainfield Clow Airport (10 mi from Oswego)

National Weather Service description (English): Hail to two inches in diameter was reported near 95th Street and Naperville-Plainfield Road via social media. One inch hail was reported on Winners Cup Court by a trained spotter.

May 27, 2019 · 2 in (hen egg) · Oswego (1 mi from Oswego)

National Weather Service description (English): Hail up to two inches in diameter was reported in Oswego. Several homes suffered significant roof, siding and gutter damage.

Oct 2, 2006 · 1.75 in (golf ball) · Walker (9 mi from Oswego)

National Weather Service description (English): Quarter to golf ball size hail was reported across much of Plainfield. Quarter size hail fell for 10 minutes at the Intersection of Route 30 at 127th Street.

Jun 4, 2011 · 1.75 in (golf ball) · Normantown (7 mi from Oswego)

National Weather Service description (English): Golfball size hail was reported near Route 30 and 135th Street as well as one mile west of Plainfield. Penny size hail was reported in numerous areas in and around Plainfield.

Tornadoes within 10 miles of Oswego

DateRatingWherePath
Aug 11, 2026EF?Oswego
3 mi from Oswego
Mar 14, 2025EF0Yorkville
7 mi from Oswego		3.6 mi long, 125 yd wide
Jul 15, 2024EF1Bristol
6 mi from Oswego		10.9 mi long, 200 yd wide
Jul 15, 2024EF1Tamarack
5 mi from Oswego		8.3 mi long, 200 yd wide
Jul 15, 2024EF0Joliet
9 mi from Oswego		2.4 mi long, 300 yd wide
Jul 15, 2024EF0Shorewood
9 mi from Oswego		14.6 mi long, 300 yd wide
Jul 15, 2024EF1Big Rock
10 mi from Oswego		8.4 mi long, 300 yd wide
Jul 15, 2024EF0Aurora Municipal Airport
10 mi from Oswego		10.1 mi long, 250 yd wide
Feb 27, 2024EF1Aurora Municipal Airport
10 mi from Oswego		8.1 mi long, 125 yd wide
Jul 12, 2023EF0Oswego
1 mi from Oswego		4.1 mi long, 100 yd wide
Mar 31, 2023EF0Montgomery
3 mi from Oswego		1.8 mi long, 200 yd wide
Mar 31, 2023EF0Montgomery
3 mi from Oswego		3.8 mi long, 200 yd wide

Damaging thunderstorm winds near Oswego

314 reports of damaging thunderstorm wind within 10 miles of Oswego since 2006, on 102 days. The strongest measured gust was 97 mph on Aug 11, 2026.

DateStrongest gustWhereSource
Aug 11, 202697 mph, measuredSugar Grove, Plainfield, Oswego
17 wind reports		NWS storm report (preliminary)
Jul 3, 202660 mph, measuredNorth Aurora, Sugar Grove, Naperville
6 wind reports		NWS storm report (preliminary)
Jul 2, 2026damage reportedMontgomery, Aurora
3 wind reports		NWS storm report (preliminary)
Jun 11, 202669 mph, estimatedOswego
2 wind reports		NOAA Storm Events
Jun 10, 202670 mph, measuredPlainfield, Big Rock, Prestbury
11 wind reports		NOAA Storm Events
May 18, 202658 mph, estimatedAurora
1 wind report		NOAA Storm Events
Aug 17, 202560 mph, estimatedBoulder Hill
1 wind report		NOAA Storm Events
Aug 16, 202570 mph, estimatedPrestbury, Montgomery, North Aurora
10 wind reports		NOAA Storm Events
Jul 24, 202575 mph, estimatedAurora, Yorkville, Plainfield
9 wind reports		NOAA Storm Events
Jul 16, 202569 mph, estimatedOswego, Aurora, Bristol
11 wind reports		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 Oswego; 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 Oswego.

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