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Hail in Roberts County, South Dakota
132 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.
Roberts County, South Dakota, has 132 hail events in the NCEI record since 1950, with at least one in 43 different years.
June is the busiest month, with 37 of the recorded events. The last 20 years account for 55 events against 62 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 12.0 per 100 square miles compares with 22.4 statewide.
30 of the hail reports with a recorded size were golf-ball size (1.75 inches) or larger; the largest recorded stone was 4.00 inches (softball size).
Compared with South Dakota
| Measure | Roberts County | South Dakota | US |
|---|---|---|---|
| Hail events since 1950 | 132 | 17,011 | 424,356 |
| Per 100 square miles | 12.0 | 22.4 | 12.0 |
| Per 10,000 residents | 129.9 | 190.0 | 12.8 |
| Deaths recorded | 0 | 0 | 29 |
| Busiest month | June | June | May |
By year
Seasonality
0Feb
0Mar
0Apr
2May
28Jun
37Jul
37Aug
20Sep
6Oct
2Nov
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 132 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 |
|---|---|---|---|---|---|---|---|
| 28 Jul 2025 | Hail | 0.88 in | — | — | — | — | County |
| 28 Jul 2025 | Hail | 1.00 in | — | — | — | — | County |
| 15 Jul 2025 | Hail | 1.00 in | — | — | — | — | County |
| 31 Jul 2024 | Hail | 1.25 in | — | — | — | — | County |
| 20 Jul 2022 | Hail | 1.00 in | — | — | — | — | County |
| 30 May 2022 | Hail | 1.00 in | — | — | — | — | County |
| 30 May 2022 | Hail | 1.00 in | — | — | — | — | County |
| 26 Aug 2021 | Hail | 0.88 in | — | — | — | — | County |
| 6 Apr 2020 | Hail | 1.00 in | — | — | — | — | County |
| 10 Jul 2018 | Hail | 1.00 in | — | — | — | — | County |
| 10 Jul 2018 | Hail | 1.00 in | — | — | — | — | County |
| 10 Jul 2018 | Hail | 0.88 in | — | — | — | — | County |
| 24 Jun 2018 | Hail | 0.88 in | — | — | — | — | County |
| 24 Jun 2018 | Hail | 0.88 in | — | — | — | — | County |
| 11 Jul 2017 | Hail | 1.00 in | — | — | — | — | County |
| 28 Aug 2016 | Hail | 0.75 in | — | — | — | — | County |
| 16 Aug 2016 | Hail | 1.00 in | — | — | — | — | County |
| 10 Aug 2016 | Hail | 1.00 in | — | — | — | — | County |
| 16 Jul 2016 | Hail | 1.50 in | — | — | — | — | County |
| 4 Jul 2016 | Hail | 1.00 in | — | — | — | — | County |
| 17 Jul 2015 | Hail | 2.50 in | — | — | — | — | County |
| 17 Jul 2015 | Hail | 1.75 in | — | — | — | — | County |
| 17 Jul 2015 | Hail | 1.75 in | — | — | — | — | County |
| 17 Jul 2015 | Hail | 1.25 in | — | — | — | — | County |
| 20 Sep 2014 | Hail | 0.75 in | — | — | — | — | County |
| 20 Aug 2014 | Hail | 1.00 in | — | — | — | — | County |
| 18 Jul 2014 | Hail | 1.00 in | — | — | — | — | County |
| 31 Aug 2013 | Hail | 1.75 in | — | — | — | — | County |
| 31 Aug 2013 | Hail | 0.88 in | — | — | — | — | County |
| 19 Jun 2013 | Hail | 1.00 in | — | — | — | — | County |
| 19 Jun 2013 | Hail | 0.75 in | — | — | — | — | County |
| 19 Jun 2013 | Hail | 1.00 in | — | — | — | — | County |
| 16 Jun 2013 | Hail | 1.00 in | — | — | — | — | County |
| 17 Jun 2012 | Hail | 1.50 in | — | — | — | — | County |
| 17 Jun 2012 | Hail | 1.00 in | — | — | — | — | County |
| 28 May 2012 | Hail | 0.75 in | — | — | — | — | County |
| 28 May 2012 | Hail | 0.88 in | — | — | — | — | County |
| 28 May 2012 | Hail | 0.88 in | — | — | — | — | County |
| 26 May 2012 | Hail | 1.00 in | — | — | — | — | County |
| 26 May 2012 | Hail | 1.00 in | — | — | — | — | County |
| 5 May 2012 | Hail | 1.25 in | — | — | — | — | County |
| 8 May 2011 | Hail | 1.50 in | — | — | — | — | County |
| 8 May 2011 | Hail | 1.00 in | — | — | — | — | County |
| 10 Jul 2010 | Hail | 1.75 in | — | — | — | — | County |
| 22 May 2010 | Hail | 1.50 in | — | — | — | — | County |
| 24 Jun 2009 | Hail | 1.00 in | — | — | — | — | County |
| 14 Jun 2008 | Hail | 0.75 in | — | — | — | — | County |
| 10 Jun 2007 | Hail | 1.00 in | — | — | — | — | County |
| 10 Jun 2007 | Hail | 0.75 in | — | — | — | — | County |
| 10 Jun 2007 | Hail | 1.25 in | — | — | — | — | County |
| 7 Jun 2007 | Hail | 1.00 in | — | — | — | — | County |
| 7 Jun 2007 | Hail | 0.88 in | — | — | — | — | County |
| 7 Jun 2007 | Hail | 1.75 in | — | — | — | — | County |
| 7 Jun 2007 | Hail | 1.75 in | — | — | — | — | County |
| 7 Jun 2007 | Hail | 0.75 in | — | — | — | — | County |
| 3 Oct 2006 | Hail | 0.88 in | — | — | — | — | County |
| 3 Oct 2006 | Hail | 0.88 in | — | — | — | — | County |
| 13 Jul 2006 | Hail | 0.88 in | — | — | — | — | County |
| 5 Jun 2006 | Hail | 0.75 in | — | — | — | — | County |
| 3 Sep 2005 | Hail | 1.00 in | — | — | — | — | County |
| 3 Sep 2005 | Hail | 0.75 in | — | — | — | — | County |
| 29 Jun 2005 | Hail | 1.00 in | — | — | — | — | County |
| 8 May 2005 | Hail | 1.00 in | — | — | — | — | County |
| 8 May 2005 | Hail | 1.00 in | — | — | — | — | County |
| 26 Aug 2004 | Hail | 0.75 in | — | — | — | — | County |
| 26 Aug 2004 | Hail | 0.75 in | — | — | — | — | County |
| 26 Aug 2004 | Hail | 0.88 in | — | — | — | — | County |
| 25 Aug 2004 | Hail | 0.88 in | — | — | — | — | County |
| 18 Apr 2004 | Hail | 0.75 in | — | — | — | — | County |
| 20 Jul 2003 | Hail | 1.25 in | — | — | — | — | County |
| 3 Jul 2003 | Hail | 1.00 in | — | — | — | — | County |
| 3 Jul 2003 | Hail | 1.00 in | — | — | — | — | County |
| 24 Jun 2003 | Hail | 1.00 in | — | — | — | — | County |
| 23 Jun 2003 | Hail | 1.75 in | — | — | — | — | County |
| 23 Jun 2003 | Hail | 1.00 in | — | — | — | — | County |
| 5 Jun 2003 | Hail | 0.75 in | — | — | — | — | County |
| 28 Aug 2002 | Hail | 1.75 in | — | — | — | — | County |
| 28 Aug 2002 | Hail | 1.00 in | — | — | — | — | County |
| 28 Aug 2002 | Hail | 1.00 in | — | — | — | — | County |
| 31 Jul 2002 | Hail | 0.75 in | — | — | — | — | County |
| 25 Jun 2002 | Hail | 1.75 in | — | — | — | — | County |
| 25 Jun 2002 | Hail | 1.75 in | — | — | — | — | County |
| 19 Jun 2002 | Hail | 0.88 in | — | — | — | — | County |
| 6 Jun 2002 | Hail | 1.00 in | — | — | — | — | County |
| 6 Jun 2002 | Hail | 0.75 in | — | — | — | — | County |
| 6 Jun 2002 | Hail | 0.88 in | — | — | — | — | County |
| 6 Jun 2002 | Hail | 1.00 in | — | — | — | — | County |
| 29 Aug 2001 | Hail | 0.75 in | — | — | — | — | County |
| 29 Aug 2001 | Hail | 0.75 in | — | — | — | — | County |
| 23 Jul 2001 | Hail | 0.75 in | — | — | — | — | County |
| 15 Jul 2000 | Hail | 1.00 in | — | — | — | — | County |
| 12 Jul 2000 | Hail | 0.88 in | — | — | — | — | County |
| 9 May 1999 | Hail | 1.00 in | — | — | — | — | County |
| 9 May 1999 | Hail | 1.00 in | — | — | — | — | County |
| 14 May 1998 | Hail | 0.75 in | — | — | — | — | County |
| 19 Jul 1997 | Hail | 1.75 in | — | — | — | — | County |
| 19 Jul 1997 | Hail | 4.00 in | — | — | — | — | County |
| 17 May 1997 | Hail | 0.75 in | — | — | — | — | County |
| 9 Sep 1996 | Hail | 1.50 in | — | — | — | — | County |
| 31 Jul 1994 | Hail | 1.00 in | — | — | — | — | County |
| 31 Jul 1994 | Hail | 2.00 in | — | — | — | — | County |
| 4 Jul 1994 | Hail | 2.00 in | — | — | — | — | County |
| 23 May 1994 | Hail | 1.75 in | $500K | $50K | — | — | County |
| 23 May 1994 | Hail | 0.75 in | — | — | — | — | County |
| 23 May 1994 | Hail | 0.75 in | — | — | — | — | County |
| 23 May 1994 | Hail | 1.75 in | $5K | — | — | — | County |
| 23 May 1994 | Hail | 1.75 in | $50K | — | — | — | County |
| 1 Aug 1992 | Hail | 0.75 in | — | — | — | — | County |
| 24 Jun 1992 | Hail | 0.75 in | — | — | — | — | County |
| 21 Jul 1991 | Hail | 1.00 in | — | — | — | — | County |
| 21 Jul 1991 | Hail | 1.75 in | — | — | — | — | County |
| 20 Jun 1991 | Hail | 1.75 in | — | — | — | — | County |
| 9 Jun 1991 | Hail | 0.75 in | — | — | — | — | County |
| 14 May 1991 | Hail | 0.75 in | — | — | — | — | County |
| 14 May 1991 | Hail | 0.75 in | — | — | — | — | County |
| 14 May 1991 | Hail | 0.75 in | — | — | — | — | County |
| 14 May 1991 | Hail | 1.75 in | — | — | — | — | County |
| 16 Sep 1985 | Hail | 0.75 in | — | — | — | — | County |
| 11 May 1982 | Hail | 2.00 in | — | — | — | — | County |
| 23 Jul 1981 | Hail | 1.75 in | — | — | — | — | County |
| 22 Jul 1981 | Hail | 1.75 in | — | — | — | — | County |
| 21 Jul 1981 | Hail | 1.75 in | — | — | — | — | County |
| 21 Jun 1981 | Hail | 1.00 in | — | — | — | — | County |
| 27 Sep 1980 | Hail | 1.75 in | — | — | — | — | County |
| 21 May 1972 | Hail | 0.75 in | — | — | — | — | County |
| 23 Jul 1966 | Hail | 1.00 in | — | — | — | — | County |
| 7 Jun 1963 | Hail | 2.25 in | — | — | — | — | County |
| 29 Jul 1961 | Hail | 0.75 in | — | — | — | — | County |
| 2 Aug 1960 | Hail | 2.00 in | — | — | — | — | County |
| 11 Aug 1959 | Hail | 2.00 in | — | — | — | — | County |
| 13 Aug 1958 | Hail | 2.75 in | — | — | — | — | County |
| 21 Jun 1956 | Hail | 1.50 in | — | — | — | — | County |
Questions and answers
How many hail events has Roberts County had?
132 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 Roberts County?
28 Jul 2025 (Hail, 1.00 in). Records reach NCEI about 120 days after the month ends.
What was the most damaging hail event recorded in Roberts County?
The hail of 23 May 1994, with property damage estimated by NCEI at $500K and crop damage at $50K.
How does Roberts County compare with South Dakota for hail?
12.0 events per 100 square miles against 22.4 statewide; the county holds 132 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.