Hail History

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Hail history for Castle Rock, CO

Last hail within 10 milesAug 26, 20261 in (quarter)
Hail days, last 12 months6
Largest hail since 20062.5 in (tennis ball)Jun 8, 2019
Hail days since 200668
Days with hail 1 inch or larger56
Tornadoes within 10 miles4
Damaging wind reports within 10 miles15

Hail has been reported within 10 miles of Castle Rock on 68 days since 2006. The largest stones measured 2.5 in (tennis ball) on Jun 8, 2019. Hail is most common here in June and August.

Castle Rock ranks #99 for hail days among the 1,399 U.S. cities of 25,000 to 100,000 people. See the ranking →

Recent hail near Castle Rock

DateHail sizeWhereSource
Aug 26, 20261.25 in
half dollar		Castle Pines, The Pinery, Parker
7 hail reports · closest 6 mi from Castle Rock		NWS storm report (preliminary)
Jul 28, 20261 in
quarter		Castle Rock
2 hail reports · closest 3 mi from Castle Rock		NWS storm report (preliminary)
Jun 8, 20261.5 in
ping pong ball		The Pinery, Parker
3 hail reports · closest 6 mi from Castle Rock		NOAA Storm Events
Jun 3, 20261 in
quarter		Franktown
1 hail report · closest 6 mi from Castle Rock		NOAA Storm Events
Jun 1, 20260.88 in
nickel		Parker
1 hail report · closest 10 mi from Castle Rock		NOAA Storm Events
Oct 27, 20250.75 in
penny		Louviers, Castle Rock, Parker
3 hail reports · closest 4 mi from Castle Rock		NOAA Storm Events
Jun 24, 20251 in
quarter		The Pinery
1 hail report · closest 8 mi from Castle Rock		NOAA Storm Events
Apr 24, 20250.75 in
penny		The Pinery
1 hail report · closest 7 mi from Castle Rock		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 Castle Rock by year

10660730830941031111221341441581621721831922042122623224325526

When hail season peaks near Castle Rock

Of the 68 hail days since 2006, most fell in June (28) and August (16).

JanFebMar2Apr7May28Jun12Jul16Aug1Sep2OctNovDec

Largest hail storms near Castle Rock

Jun 8, 2019 · 2.5 in (tennis ball) · Castle Rock (3 mi from Castle Rock)

Jun 11, 2010 · 2 in (hen egg) · Castle Rock (9 mi from Castle Rock)

Jul 1, 2016 · 2 in (hen egg) · Franktown (3 mi from Castle Rock)

Jun 15, 2009 · 1.75 in (golf ball) · Franktown (5 mi from Castle Rock)

Jun 6, 2012 · 1.75 in (golf ball) · Parker (7 mi from Castle Rock)

Tornadoes within 10 miles of Castle Rock

DateRatingWherePath
Jul 14, 2025EF1Franktown
6 mi from Castle Rock		0.3 mi long, 50 yd wide
Jul 20, 2009EF0Castle Rock
1 mi from Castle Rock		0.1 mi long, 50 yd wide
Aug 24, 2008EF0Parker
8 mi from Castle Rock		0.5 mi long, 100 yd wide
Aug 24, 2008EF0Castle Rock
3 mi from Castle Rock		0.1 mi long, 50 yd wide

Damaging thunderstorm winds near Castle Rock

15 reports of damaging thunderstorm wind within 10 miles of Castle Rock since 2006, on 8 days. The strongest measured gust was 81 mph on Jun 6, 2020.

DateStrongest gustWhereSource
Jul 27, 202260 mph, measuredParker
1 wind report		NOAA Storm Events
Jun 6, 202081 mph, measuredParker, Larkspur, Franktown
7 wind reports		NOAA Storm Events
Jul 25, 201869 mph, measuredParker, Sedalia
2 wind reports		NOAA Storm Events
Jul 25, 201660 mph, measuredFranktown
1 wind report		NOAA Storm Events
Jun 28, 201360 mph, measuredOrsa
1 wind report		NOAA Storm Events
Jun 16, 201166 mph, measuredFranktown
1 wind report		NOAA Storm Events
Jun 24, 200660 mph, measuredSedalia
1 wind report		NOAA Storm Events
May 22, 200660 mph, measuredCastle Rock
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 Castle Rock; 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 Castle Rock.

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