Hail History

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Hail history for Thornton, CO

Last hail within 10 milesAug 26, 20260.75 in (penny)
Hail days, last 12 months4
Largest hail since 20062.75 in (baseball)May 30, 2024
Hail days since 200669
Days with hail 1 inch or larger54
Tornadoes within 10 miles4
Damaging wind reports within 10 miles58

Hail has been reported within 10 miles of Thornton on 69 days since 2006. The largest stones measured 2.75 in (baseball) on May 30, 2024. Hail is most common here in June and May.

Thornton ranks #45 for hail days among the 311 U.S. cities of 100,000 or more people. See the ranking →

Recent hail near Thornton

DateHail sizeWhereSource
Aug 26, 20260.75 in
penny		Wheat Ridge
1 hail report · closest 7 mi from Thornton		NWS storm report (preliminary)
Jun 26, 20261 in
quarter		Federal Hgt, Broomfield, Northglenn
3 hail reports · closest 4 mi from Thornton		NOAA Storm Events
Jun 8, 20261.5 in
ping pong ball		Arvada, Edgewater, Jefferson Co Airport
11 hail reports · closest 5 mi from Thornton		NOAA Storm Events
Jun 1, 20261.75 in
golf ball		Denver
13 hail reports · closest 8 mi from Thornton		NOAA Storm Events
Jul 11, 20250.75 in
penny		Lafayette
1 hail report · closest 9 mi from Thornton		NOAA Storm Events
Jul 6, 20251.5 in
ping pong ball		Wheat Ridge, Denver
2 hail reports · closest 9 mi from Thornton		NOAA Storm Events
Jun 17, 20251.25 in
half dollar		Henderson, Broomfield, Northglenn
13 hail reports · closest 2 mi from Thornton		NOAA Storm Events
May 14, 20250.75 in
penny		Arvada
1 hail report · closest 8 mi from Thornton		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 Thornton by year

30640720880961041112136143153161175185192012122623424425426

When hail season peaks near Thornton

Of the 69 hail days since 2006, most fell in June (29) and May (17).

JanFebMar1Apr17May29Jun16Jul6AugSepOctNovDec

Largest hail storms near Thornton

May 8, 2017 · 2.75 in (baseball) · Edgewater (10 mi from Thornton)

National Weather Service description (English): The estimated damage is for the entire episode.

May 30, 2024 · 2.75 in (baseball) · Denver Intl. Airport (7 mi from Thornton)

National Weather Service description (English): This includes Northfield and Central Park.

Jun 18, 2018 · 2.5 in (tennis ball) · Henderson (6 mi from Thornton)

May 26, 2010 · 2 in (hen egg) · Hazeltine (6 mi from Thornton)

Jun 4, 2008 · 1.75 in (golf ball) · Arvada (8 mi from Thornton)

Tornadoes within 10 miles of Thornton

DateRatingWherePath
Jul 29, 2022EF?Commerce City
8 mi from Thornton		0.0 mi long, 50 yd wide
May 26, 2010EF0Denver Intl. Airport
8 mi from Thornton		0.1 mi long, 50 yd wide
Jun 7, 2009EF0Northglenn
8 mi from Thornton		0.6 mi long, 50 yd wide
May 24, 2009EF0Adams City
5 mi from Thornton		0.1 mi long, 50 yd wide

Damaging thunderstorm winds near Thornton

58 reports of damaging thunderstorm wind within 10 miles of Thornton since 2006, on 32 days. The strongest measured gust was 97 mph on Jun 18, 2013.

DateStrongest gustWhereSource
Aug 26, 202658 mph, measuredWheat Ridge
1 wind report		NWS storm report (preliminary)
Jul 10, 202559 mph, measuredDenver
3 wind reports		NOAA Storm Events
Jul 8, 202558 mph, estimatedDenver, Westminster
2 wind reports		NOAA Storm Events
Jun 17, 202560 mph, estimatedNorthglenn
1 wind report		NOAA Storm Events
Jul 20, 202466 mph, measuredDenver, Broomfield
3 wind reports		NOAA Storm Events
Jul 24, 202368 mph, measuredCommerce City
1 wind report		NOAA Storm Events
Jul 23, 202364 mph, estimatedDenver
1 wind report		NOAA Storm Events
Aug 7, 202270 mph, estimatedDenver
2 wind reports		NOAA Storm Events
Jul 9, 202060 mph, estimatedHenderson
1 wind report		NOAA Storm Events
Jun 26, 202064 mph, measuredDenver Intl. Airport
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 Thornton; 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 Thornton.

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