Hail History

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Hail history for Pennington County, SD

Last hail in the countyAug 23, 20260.7 in
Hail days, last 12 months9
Largest hail since 20064.5 in (softball)Jun 12, 2022
Hail days since 2006317
Days with hail 1 inch or larger266
Tornadoes in the county10
Damaging wind reports in the county581

1,160 hail reports in Pennington County since 2006 on 317 days. The largest stones measured 4.5 in (softball) on Jun 12, 2022.

Cities in Pennington County

Recent hail in Pennington County

DateHail sizeWhereSource
Aug 23, 20261.75 in
golf ball		Pactola Resv, Johnson Siding, Rockerville
5 hail reports		NWS storm report (preliminary)
Aug 18, 20261.5 in
ping pong ball		Dwtn Rapid City, Rockerville
6 hail reports		NWS storm report (preliminary)
Aug 16, 20260.88 in
nickel		Dwtn Rapid City
1 hail report		NWS storm report (preliminary)
Aug 11, 20263 in
tea cup		Rockerville, Hayward, Hermosa
17 hail reports		NWS storm report (preliminary)
Aug 10, 20261.5 in
ping pong ball		Silver City, Pactola Resv, Sheridan Lake
3 hail reports		NWS storm report (preliminary)
Jul 3, 20261.25 in
half dollar		Hill City, Mount Rushmore, Deerfield
9 hail reports		NWS storm report (preliminary)
Jul 2, 20261.75 in
golf ball		New Underwood, Creighton, Rockerville
8 hail reports		NWS storm report (preliminary)
Jun 22, 20261.75 in
golf ball		Rapid City
9 hail reports		NOAA Storm Events
Jun 4, 20261 in
quarter		Deerfield, Hill City
3 hail reports		NOAA Storm Events
Jul 19, 20251 in
quarter		Rapid City, Silver City, Rockerville
5 hail reports		NOAA Storm Events
Jul 18, 20251.5 in
ping pong ball		Creighton
1 hail report		NOAA Storm Events
Jul 6, 20251.75 in
golf ball		Rockerville, Rapid City
6 hail reports		NOAA Storm Events
Jul 1, 20251 in
quarter		Rockerville, Rapid City
2 hail reports		NOAA Storm Events
Jun 28, 20251.5 in
ping pong ball		Rapid City
1 hail report		NOAA Storm Events
Jun 25, 20251.25 in
half dollar		Sheridan Lake
2 hail reports		NOAA Storm Events
Apr 27, 20251.75 in
golf ball		Mystic
2 hail reports		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 Pennington County by year

90620072008120914102011121223131214171521169171718161917201021142223231524725926

When hail season peaks in Pennington County

JanFeb1Mar6Apr31May92Jun104Jul66Aug15Sep2OctNovDec

Damaging thunderstorm winds in Pennington County

581 reports of damaging thunderstorm wind in Pennington County since 2006, on 224 days. The strongest measured gust was 89 mph on Jul 27, 2011.

DateStrongest gustWhereSource
Sep 7, 202667 mph, measuredRapid City Airport, Caputa, New Underwood
8 wind reports		NWS storm report (preliminary)
Aug 30, 202666 mph, measuredWasta, Owanka, Box Elder
37 wind reports		NWS storm report (preliminary)
Aug 24, 202653 mph, measuredHayward
1 wind report		NWS storm report (preliminary)
Aug 18, 202661 mph, measuredScenic, Pactola Res, Rapid City Airport
6 wind reports		NWS storm report (preliminary)
Aug 16, 2026damage reportedRapid City Airport
1 wind report		NWS storm report (preliminary)
Aug 11, 202679 mph, measuredWasta, Creighton, Owanka
18 wind reports		NWS storm report (preliminary)
Jul 30, 202657 mph, measuredHayward
1 wind report		NWS storm report (preliminary)
Jul 29, 202667 mph, measuredNew Underwood, Rapid City Airport, Scenic
14 wind reports		NWS storm report (preliminary)
Jul 27, 202666 mph, measuredCreighton, Scenic, Wasta
7 wind reports		NWS storm report (preliminary)
Jul 25, 202651 mph, measuredWasta
1 wind report		NWS storm report (preliminary)

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 Pennington 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).