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Hail history for Union, MO

Last hail within 10 milesMay 16, 20251.75 in (golf ball)

Hail days, last 12 monthsNone

Largest hail since 20063 in (tea cup)Apr 15, 2023

Hail days since 200650

Days with hail 1 inch or larger35

Tornadoes within 10 miles9

Damaging wind reports within 10 miles85

Hail has been reported within 10 miles of Union on 50 days since 2006. The largest stones measured 3 in (tea cup) on Apr 15, 2023. Hail is most common here in April and May.

Recent hail near Union

Date	Hail size	Where	Source
May 16, 2025	1.75 in golf ball	Washington 4 hail reports · closest 7 mi from Union	NOAA Storm Events
Mar 14, 2025	1.75 in golf ball	Union 1 hail report · closest 3 mi from Union	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 Union by year

When hail season peaks near Union

Of the 50 hail days since 2006, most fell in April (20) and May (9).

Largest hail storms near Union

Apr 15, 2023 · 3 in (tea cup) · Union (0 mi from Union)

National Weather Service description (English): A wide swath of large hail fell across Franklin County from Union through Villa Ridge, Grey Summit and Pacific. The largest hail stones, 3 inches in diameter, were reported on the north side of Pacific.

Apr 7, 2015 · 2 in (hen egg) · Moselle (5 mi from Union)

National Weather Service description (English): Large hail fell east of St. Clair, some of the hail stones were two inches in diameter, but most were an inch in diameter. The large hail caused damage to some vehicles.

Mar 13, 2006 · 1.75 in (golf ball) · Washington (7 mi from Union)

Apr 19, 2006 · 1.75 in (golf ball) · St Clair (7 mi from Union)

Jun 28, 2006 · 1.75 in (golf ball) · Union (1 mi from Union)

Tornadoes within 10 miles of Union

Date	Rating	Where	Path
Mar 14, 2025	EF2	Villa Ridge 8 mi from Union	14.3 mi long, 644 yd wide
Dec 10, 2021	EF3	Femme Osage 10 mi from Union	16.1 mi long, 150 yd wide
May 21, 2019	EF0	Boles 8 mi from Union	1.9 mi long, 50 yd wide
May 31, 2013	EF1	Jeffriesburg 4 mi from Union	10.0 mi long, 550 yd wide
Feb 27, 2011	EF1	Augusta 10 mi from Union	6.2 mi long, 200 yd wide
Dec 31, 2010	EF2	Moselle 10 mi from Union	11.4 mi long, 370 yd wide
Dec 31, 2010	EF1	Krakow 4 mi from Union	0.8 mi long, 100 yd wide
Dec 31, 2010	EF0	Krakow 4 mi from Union	0.4 mi long, 50 yd wide
Dec 31, 2010	EF0	Augusta 9 mi from Union	2.0 mi long, 50 yd wide

Damaging thunderstorm winds near Union

85 reports of damaging thunderstorm wind within 10 miles of Union since 2006, on 59 days. The strongest measured gust was 72 mph on Apr 1, 2024.

Date	Strongest gust	Where	Source
Aug 12, 2026	damage reported	Union, Saint Clair, Moselle 3 wind reports	NWS storm report (preliminary)
Jul 4, 2026	damage reported	Union, Washington 5 wind reports	NWS storm report (preliminary)
Apr 27, 2026	60 mph, estimated	Jeffriesburg 1 wind report	NOAA Storm Events
Mar 11, 2026	58 mph, estimated	Moselle 1 wind report	NOAA Storm Events
Aug 17, 2025	69 mph, estimated	Washington 1 wind report	NOAA Storm Events
May 16, 2025	64 mph, estimated	Martinsburg 1 wind report	NOAA Storm Events
Apr 1, 2024	72 mph, measured	Washington 1 wind report	NOAA Storm Events
Jul 16, 2023	64 mph, estimated	Villa Ridge 1 wind report	NOAA Storm Events
Jul 2, 2023	60 mph, estimated	Augusta 1 wind report	NOAA Storm Events
Jul 1, 2023	60 mph, estimated	South Pt, Dutzow 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 Union; 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 Union.

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