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Hail in Grant County, South Dakota
128 hail events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Hail.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
NCEI records 128 hail events in Grant County, South Dakota, between 1950 and 2026, spread over 37 years.
June is the busiest month, with 38 of the recorded events. The last 20 years account for 75 events against 46 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.8% of the 17,011 hail events recorded in South Dakota; its 18.8 per 100 square miles compares with 22.4 statewide.
28 of the hail reports with a recorded size were golf-ball size (1.75 inches) or larger; the largest recorded stone was 2.75 inches (baseball size).
Compared with South Dakota
| Measure | Grant County | South Dakota | US |
|---|---|---|---|
| Hail events since 1950 | 128 | 17,011 | 424,356 |
| Per 100 square miles | 18.8 | 22.4 | 12.0 |
| Per 10,000 residents | 170.2 | 190.0 | 12.8 |
| Deaths recorded | 0 | 0 | 29 |
| Busiest month | June | June | May |
By year
Seasonality
0Feb
0Mar
1Apr
4May
10Jun
38Jul
29Aug
35Sep
8Oct
3Nov
0Dec
0
Magnitude distribution
NWS hail-size descriptors
- under 1 in
- pea to quarter
- 1–1.74 in
- quarter to golf ball
- 1.75–2.74 in
- golf ball to baseball
- 2.75–3.99 in
- baseball to softball
- 4 in and larger
- softball and larger
Hail size in inches as recorded by NCEI; events without a size are not binned.
Recorded events
All 128 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 21 Aug 2025 | Hail | 1.00 in | — | — | — | — | County |
| 21 Aug 2025 | Hail | 0.75 in | — | — | — | — | County |
| 21 Aug 2025 | Hail | 1.00 in | — | — | — | — | County |
| 18 Jun 2024 | Hail | 1.00 in | — | — | — | — | County |
| 8 Sep 2022 | Hail | 1.00 in | — | — | — | — | County |
| 28 Aug 2021 | Hail | 2.75 in | — | — | — | — | County |
| 28 Aug 2021 | Hail | 1.25 in | — | — | — | — | County |
| 28 Aug 2021 | Hail | 2.50 in | — | — | — | — | County |
| 28 Aug 2021 | Hail | 1.75 in | — | — | — | — | County |
| 28 Aug 2021 | Hail | 1.25 in | — | — | — | — | County |
| 11 Oct 2020 | Hail | 1.00 in | — | — | — | — | County |
| 21 Aug 2020 | Hail | 1.00 in | — | — | — | — | County |
| 21 Aug 2020 | Hail | 1.50 in | — | — | — | — | County |
| 21 Aug 2020 | Hail | 1.50 in | — | — | — | — | County |
| 4 Jun 2019 | Hail | 1.00 in | — | — | — | — | County |
| 10 Jul 2018 | Hail | 1.75 in | — | — | — | — | County |
| 10 Jul 2018 | Hail | 1.00 in | — | — | — | — | County |
| 18 Aug 2017 | Hail | 1.00 in | — | — | — | — | County |
| 18 Aug 2017 | Hail | 1.25 in | — | — | — | — | County |
| 18 Aug 2017 | Hail | 1.75 in | — | — | — | — | County |
| 18 Aug 2017 | Hail | 1.00 in | — | — | — | — | County |
| 18 Aug 2017 | Hail | 1.50 in | — | — | — | — | County |
| 11 Jun 2017 | Hail | 1.00 in | — | — | — | — | County |
| 11 Jun 2017 | Hail | 1.00 in | — | — | — | — | County |
| 9 Aug 2015 | Hail | 1.00 in | — | — | — | — | County |
| 17 Jul 2015 | Hail | 2.00 in | — | — | — | — | County |
| 17 Jul 2015 | Hail | 1.50 in | — | — | — | — | County |
| 5 Jul 2015 | Hail | 0.75 in | — | — | — | — | County |
| 5 Jul 2015 | Hail | 0.88 in | — | — | — | — | County |
| 22 Jun 2015 | Hail | 1.75 in | — | — | — | — | County |
| 9 Jun 2015 | Hail | 0.88 in | — | — | — | — | County |
| 24 Jul 2014 | Hail | 1.00 in | — | — | — | — | County |
| 19 Jun 2014 | Hail | 1.00 in | — | — | — | — | County |
| 19 May 2014 | Hail | 1.00 in | — | — | — | — | County |
| 2 Oct 2013 | Hail | 1.00 in | — | — | — | — | County |
| 2 Oct 2013 | Hail | 1.00 in | — | — | — | — | County |
| 17 Jun 2012 | Hail | 1.50 in | — | — | — | — | County |
| 17 Jun 2012 | Hail | 1.00 in | — | — | — | — | County |
| 17 Jun 2012 | Hail | 1.00 in | — | — | — | — | County |
| 2 May 2012 | Hail | 1.00 in | — | — | — | — | County |
| 22 Jul 2011 | Hail | 1.00 in | — | — | — | — | County |
| 22 Jul 2011 | Hail | 1.75 in | — | — | — | — | County |
| 22 Jul 2011 | Hail | 0.75 in | — | — | — | — | County |
| 22 Jul 2011 | Hail | 0.88 in | — | — | — | — | County |
| 22 Jul 2011 | Hail | 0.88 in | — | — | — | — | County |
| 22 Jul 2011 | Hail | 0.88 in | — | — | — | — | County |
| 22 Jul 2011 | Hail | 1.75 in | — | — | — | — | County |
| 22 Jul 2011 | Hail | 1.00 in | — | — | — | — | County |
| 22 Jul 2011 | Hail | 1.75 in | — | — | — | — | County |
| 22 Jul 2011 | Hail | 1.25 in | — | — | — | — | County |
| 9 May 2011 | Hail | 1.00 in | — | — | — | — | County |
| 12 Aug 2010 | Hail | 1.00 in | — | — | — | — | County |
| 12 Aug 2010 | Hail | 1.00 in | — | — | — | — | County |
| 12 Aug 2010 | Hail | 1.00 in | — | — | — | — | County |
| 12 Aug 2010 | Hail | 1.25 in | — | — | — | — | County |
| 12 Aug 2010 | Hail | 1.00 in | — | — | — | — | County |
| 12 Aug 2010 | Hail | 1.75 in | — | — | — | — | County |
| 12 Aug 2010 | Hail | 1.50 in | — | — | — | — | County |
| 12 Aug 2010 | Hail | 1.00 in | — | — | — | — | County |
| 12 Aug 2010 | Hail | 1.25 in | — | — | — | — | County |
| 25 Jul 2008 | Hail | 1.75 in | — | — | — | — | County |
| 20 Sep 2007 | Hail | 0.88 in | — | — | — | — | County |
| 10 Jun 2007 | Hail | 1.00 in | — | — | — | — | County |
| 10 Jun 2007 | Hail | 0.88 in | — | — | — | — | County |
| 10 Jun 2007 | Hail | 0.75 in | — | — | — | — | County |
| 10 Jun 2007 | Hail | 0.88 in | — | — | — | — | County |
| 10 Jun 2007 | Hail | 1.00 in | — | — | — | — | County |
| 10 Jun 2007 | Hail | 0.88 in | — | — | — | — | County |
| 10 Jun 2007 | Hail | 0.75 in | — | — | — | — | County |
| 10 Jun 2007 | Hail | 1.00 in | — | — | — | — | County |
| 10 Jun 2007 | Hail | 0.75 in | — | — | — | — | County |
| 21 Apr 2007 | Hail | 0.75 in | — | — | — | — | County |
| 21 Apr 2007 | Hail | 0.88 in | — | — | — | — | County |
| 21 Apr 2007 | Hail | 0.88 in | — | — | — | — | County |
| 21 Apr 2007 | Hail | 1.00 in | — | — | — | — | County |
| 16 Sep 2006 | Hail | 1.75 in | — | — | — | — | County |
| 24 Jun 2006 | Hail | 0.88 in | — | — | — | — | County |
| 24 Jun 2006 | Hail | 1.00 in | — | — | — | — | County |
| 23 Jun 2006 | Hail | 0.75 in | — | — | — | — | County |
| 14 Jun 2006 | Hail | 0.75 in | — | — | — | — | County |
| 13 Jun 2006 | Hail | 0.75 in | — | — | — | — | County |
| 13 Jun 2006 | Hail | 1.00 in | — | — | — | — | County |
| 23 May 2006 | Hail | 1.00 in | — | — | — | — | County |
| 8 Aug 2005 | Hail | 0.75 in | — | — | — | — | County |
| 29 Jun 2005 | Hail | 0.88 in | — | — | — | — | County |
| 7 Jun 2005 | Hail | 0.75 in | — | — | — | — | County |
| 7 Jun 2005 | Hail | 0.75 in | — | — | — | — | County |
| 8 May 2005 | Hail | 0.75 in | — | — | — | — | County |
| 25 Aug 2004 | Hail | 0.88 in | — | — | — | — | County |
| 15 Aug 2004 | Hail | 0.75 in | — | — | — | — | County |
| 29 Jul 2003 | Hail | 0.88 in | — | — | — | — | County |
| 20 Jul 2003 | Hail | 1.75 in | — | — | — | — | County |
| 14 Jul 2003 | Hail | 0.75 in | — | — | — | — | County |
| 3 Jul 2003 | Hail | 0.75 in | — | — | — | — | County |
| 24 Jun 2003 | Hail | 1.00 in | — | — | — | — | County |
| 5 Jun 2003 | Hail | 0.88 in | — | — | — | — | County |
| 11 Aug 2002 | Hail | 0.75 in | — | — | — | — | County |
| 25 Jun 2002 | Hail | 0.88 in | — | — | — | — | County |
| 25 Jun 2002 | Hail | 1.00 in | — | — | — | — | County |
| 25 Jun 2002 | Hail | 1.00 in | — | — | — | — | County |
| 6 Jun 2002 | Hail | 0.75 in | — | — | — | — | County |
| 29 May 2002 | Hail | 0.75 in | — | — | — | — | County |
| 22 Sep 2001 | Hail | 0.75 in | — | — | — | — | County |
| 22 Sep 2001 | Hail | 1.00 in | — | — | — | — | County |
| 13 Jun 2001 | Hail | 1.75 in | — | — | — | — | County |
| 9 Jun 2001 | Hail | 0.75 in | — | — | — | — | County |
| 9 May 1999 | Hail | 0.75 in | — | — | — | — | County |
| 14 Jul 1998 | Hail | 1.75 in | — | — | — | — | County |
| 10 Sep 1996 | Hail | 1.75 in | — | — | — | — | County |
| 10 Sep 1996 | Hail | 0.75 in | — | — | — | — | County |
| 21 Aug 1996 | Hail | 0.75 in | — | — | — | — | County |
| 3 Jul 1995 | Hail | 1.75 in | — | — | — | — | County |
| 7 Jul 1994 | Hail | 1.75 in | $50K | $500K | — | — | County |
| 5 Jul 1994 | Hail | 1.75 in | — | $50K | — | — | County |
| 24 May 1994 | Hail | 1.75 in | $50K | — | — | — | County |
| 24 Jun 1992 | Hail | 0.75 in | — | — | — | — | County |
| 18 Jun 1991 | Hail | 1.00 in | — | — | — | — | County |
| 14 May 1991 | Hail | 1.75 in | — | — | — | — | County |
| 14 May 1991 | Hail | 1.00 in | — | — | — | — | County |
| 21 Aug 1989 | Hail | 0.75 in | — | — | — | — | County |
| 21 Aug 1987 | Hail | 0.75 in | — | — | — | — | County |
| 23 Jul 1981 | Hail | 1.75 in | — | — | — | — | County |
| 21 Jul 1981 | Hail | 1.75 in | — | — | — | — | County |
| 26 Mar 1977 | Hail | 1.50 in | — | — | — | — | County |
| 8 Sep 1974 | Hail | 1.75 in | — | — | — | — | County |
| 6 Aug 1966 | Hail | 2.00 in | — | — | — | — | County |
| 25 Jul 1960 | Hail | 2.00 in | — | — | — | — | County |
| 14 Aug 1957 | Hail | 2.75 in | — | — | — | — | County |
Questions and answers
How many hail events has Grant County had?
128 events in the NCEI Storm Events record between 1950 and 2026. Reporting of hail became far more complete after 1996, so early decades undercount.
When was the last recorded hail event in Grant County?
21 Aug 2025 (Hail, 1.00 in). Records reach NCEI about 120 days after the month ends.
What was the most damaging hail event recorded in Grant County?
The hail of 7 Jul 1994, with property damage estimated by NCEI at $50K and crop damage at $500K.
How does Grant County compare with South Dakota for hail?
18.8 events per 100 square miles against 22.4 statewide; the county holds 128 of the state's 17,011 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Hail hub and the county page.