Hail History

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Hail history for Blackhawk, SD

Last hail within 10 milesAug 23, 20261 in (quarter)
Hail days, last 12 months8
Largest hail since 20064.5 in (softball)Aug 8, 2020
Hail days since 2006182
Days with hail 1 inch or larger142
Damaging wind reports within 10 miles138

Hail has been reported within 10 miles of Blackhawk on 182 days since 2006. The largest stones measured 4.5 in (softball) on Aug 8, 2020. Hail is most common here in July and June.

Recent hail near Blackhawk

DateHail sizeWhereSource
Aug 23, 20261 in
quarter		Johnson Siding
1 hail report · closest 8 mi from Blackhawk		NWS storm report (preliminary)
Aug 18, 20261.5 in
ping pong ball		Dwtn Rapid City, Rockerville
6 hail reports · closest 7 mi from Blackhawk		NWS storm report (preliminary)
Aug 16, 20260.88 in
nickel		Dwtn Rapid City, Black Hawk
2 hail reports · closest 2 mi from Blackhawk		NWS storm report (preliminary)
Aug 11, 20262.5 in
tennis ball		Johnson Siding, Black Hawk, Dwtn Rapid City
8 hail reports · closest 2 mi from Blackhawk		NWS storm report (preliminary)
Jul 7, 20261 in
quarter		Summerset, Piedmont
4 hail reports · closest 4 mi from Blackhawk		NWS storm report (preliminary)
Jul 2, 20260.75 in
penny		Dwtn Rapid City
2 hail reports · closest 8 mi from Blackhawk		NWS storm report (preliminary)
Jul 1, 20261.5 in
ping pong ball		Black Hawk
2 hail reports · closest near the center of Blackhawk		NWS storm report (preliminary)
Jun 22, 20261.75 in
golf ball		Rapid City, Nemo
10 hail reports · closest 6 mi from Blackhawk		NOAA Storm Events
Jul 19, 20251 in
quarter		Black Hawk, Rockerville, Rapid City
7 hail reports · closest 2 mi from Blackhawk		NOAA Storm Events
Jul 10, 20251 in
quarter		Piedmont
1 hail report · closest 8 mi from Blackhawk		NOAA Storm Events
Jul 6, 20251.75 in
golf ball		Rockerville, Rapid City
5 hail reports · closest 7 mi from Blackhawk		NOAA Storm Events
Jul 1, 20250.75 in
penny		Rapid City
1 hail report · closest 6 mi from Blackhawk		NOAA Storm Events
Jun 28, 20251.5 in
ping pong ball		Rapid City
1 hail report · closest 4 mi from Blackhawk		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 Blackhawk by year

50690710081091010111171212137147151216417918151913206217221523924525826

When hail season peaks near Blackhawk

Of the 182 hail days since 2006, most fell in July (63) and June (50).

JanFebMar4Apr19May50Jun63Jul37Aug8Sep1OctNovDec

Largest hail storms near Blackhawk

Jun 1, 2015 · 4.5 in (softball) · Piedmont (7 mi from Blackhawk)

National Weather Service description (English): Tennis ball to softball sized hail pummeled Piedmont.

Aug 8, 2020 · 4.5 in (softball) · Pactola Reservoir (10 mi from Blackhawk)

National Weather Service description (English): A woman was hit in the head by giant hailstones.

Aug 30, 2013 · 4.25 in · Johnson Siding (7 mi from Blackhawk)

National Weather Service description (English): Softball size hail caused extensive property damage to buildings and vehicles along Norris Peak Road.

Jul 10, 2020 · 3.25 in · Rapid City (5 mi from Blackhawk)

National Weather Service description (English): Vehicle damage, including several broken windshields, was noted in the neighborhood.

Jun 24, 2011 · 3 in (tea cup) · Rapid City (10 mi from Blackhawk)

National Weather Service description (English): One to three inch diameter hail fell over the south side of Rapid City.

Damaging thunderstorm winds near Blackhawk

138 reports of damaging thunderstorm wind within 10 miles of Blackhawk since 2006, on 80 days. The strongest measured gust was 76 mph on Jun 10, 2016.

DateStrongest gustWhereSource
Aug 30, 202653 mph, measuredSummerset
2 wind reports		NWS storm report (preliminary)
Aug 18, 202669 mph, measuredSummerset
1 wind report		NWS storm report (preliminary)
Jul 29, 202654 mph, measuredPiedmont, Nemo
3 wind reports		NWS storm report (preliminary)
Jul 2, 202651 mph, measuredDwtn Rapid City
1 wind report		NWS storm report (preliminary)
Jun 27, 202658 mph, estimatedRapid City
2 wind reports		NOAA Storm Events
Jun 26, 202658 mph, estimatedRapid City
2 wind reports		NOAA Storm Events
Sep 10, 202564 mph, measuredRapid City
2 wind reports		NOAA Storm Events
Aug 13, 202560 mph, estimatedPiedmont
1 wind report		NOAA Storm Events
Jul 19, 202570 mph, measuredRapid City, Black Hawk
2 wind reports		NOAA Storm Events
Jun 15, 202564 mph, measuredRapid City
5 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 Blackhawk; 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 Blackhawk.

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