Hail History

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Hail history for Mercer County, OH

Last hail in the countyAug 12, 20261 in (quarter)
Hail days, last 12 months2
Largest hail since 20062.5 in (tennis ball)Jul 10, 2017
Hail days since 200630
Days with hail 1 inch or larger17
Tornadoes in the county17
Damaging wind reports in the county102

43 hail reports in Mercer County since 2006 on 30 days. The largest stones measured 2.5 in (tennis ball) on Jul 10, 2017.

Cities in Mercer County

Recent hail in Mercer County

DateHail sizeWhereSource
Aug 12, 20261 in
quarter		Celina
2 hail reports		NWS storm report (preliminary)
Mar 22, 20261.5 in
ping pong ball		Mendon, St Sebastian
2 hail reports		NOAA Storm Events
Apr 2, 20250.88 in
nickel		St Henry
1 hail report		NOAA Storm Events

One row per day: the largest hail reported in the county that day, the places and the number of reports.

Hail days in Mercer County by year

20620710830910411212133142151631718219220212223124125226

When hail season peaks in Mercer County

JanFeb2Mar5Apr7May7Jun5Jul2Aug2SepOctNovDec

Damaging thunderstorm winds in Mercer County

102 reports of damaging thunderstorm wind in Mercer County since 2006, on 66 days. The strongest measured gust was 83 mph on Jun 29, 2012.

DateStrongest gustWhereSource
Aug 11, 2026damage reportedSaint Henry
1 wind report		NWS storm report (preliminary)
Aug 10, 2026damage reportedRockford
1 wind report		NWS storm report (preliminary)
Jul 3, 2026damage reportedColdwater, Celina
2 wind reports		NWS storm report (preliminary)
Jun 11, 202669 mph, estimatedCelina, Tama, Mendon
4 wind reports		NOAA Storm Events
Apr 14, 202658 mph, estimatedCelina, Sebastian
2 wind reports		NOAA Storm Events
Mar 26, 202658 mph, estimatedSebastian, Chickasaw
2 wind reports		NOAA Storm Events
Jun 18, 202558 mph, measuredFort Recovery, Celina Lakefield Airport
2 wind reports		NOAA Storm Events
Apr 2, 202558 mph, estimatedCelina, Montezuma
2 wind reports		NOAA Storm Events
Jul 14, 202452 mph, estimatedCelina
1 wind report		NOAA Storm Events
Apr 17, 202458 mph, estimatedSt Wendelin, Philothea
2 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 Mercer County; 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.

Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then).