States › South Dakota › Brown County › Hail
Hail in Brown County, South Dakota
438 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 438 hail events in Brown County, South Dakota, between 1950 and 2026, spread over 60 years.
July is the busiest month, with 116 of the recorded events. The last 20 years account for 219 events against 164 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 2.6% of the 17,011 hail events recorded in South Dakota; its 25.6 per 100 square miles compares with 22.4 statewide.
123 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 | Brown County | South Dakota | US |
|---|---|---|---|
| Hail events since 1950 | 438 | 17,011 | 424,356 |
| Per 100 square miles | 25.6 | 22.4 | 12.0 |
| Per 10,000 residents | 115.0 | 190.0 | 12.8 |
| Deaths recorded | 0 | 0 | 29 |
| Busiest month | July | June | May |
By year
Seasonality
0Feb
0Mar
0Apr
22May
49Jun
110Jul
116Aug
102Sep
37Oct
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
The 123 events kept for this page are the 120 most recent plus the 80 with the most damage, deaths or injuries out of 438. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 29 Jun 2026 | Hail | 1.00 in | — | — | — | — | County |
| 5 Aug 2025 | Hail | 1.00 in | — | — | — | — | County |
| 5 Aug 2025 | Hail | 1.50 in | — | — | — | — | County |
| 15 Jul 2025 | Hail | 0.75 in | — | — | — | — | County |
| 15 Jul 2025 | Hail | 0.75 in | — | — | — | — | County |
| 14 Jul 2025 | Hail | 0.75 in | — | — | — | — | County |
| 31 Jul 2024 | Hail | 1.00 in | — | — | — | — | County |
| 9 Jul 2024 | Hail | 1.25 in | — | — | — | — | County |
| 6 Jul 2024 | Hail | 1.00 in | — | — | — | — | County |
| 2 Jun 2024 | Hail | 2.75 in | — | — | — | — | County |
| 2 Jun 2024 | Hail | 1.25 in | — | — | — | — | County |
| 2 Jun 2024 | Hail | 1.75 in | — | — | — | — | County |
| 2 Jun 2024 | Hail | 1.50 in | — | — | — | — | County |
| 2 Jun 2024 | Hail | 1.00 in | — | — | — | — | County |
| 2 Jun 2024 | Hail | 1.25 in | — | — | — | — | County |
| 23 May 2024 | Hail | 1.25 in | — | — | — | — | County |
| 23 May 2024 | Hail | 1.00 in | — | — | — | — | County |
| 23 May 2024 | Hail | 1.00 in | — | — | — | — | County |
| 29 Sep 2023 | Hail | 1.00 in | — | — | — | — | County |
| 29 Sep 2023 | Hail | 1.50 in | — | — | — | — | County |
| 10 Aug 2023 | Hail | 1.75 in | — | — | — | — | County |
| 18 Aug 2022 | Hail | 1.00 in | — | — | — | — | County |
| 5 Aug 2022 | Hail | 1.00 in | — | — | — | — | County |
| 5 Aug 2022 | Hail | 1.50 in | — | — | — | — | County |
| 5 Aug 2022 | Hail | 1.25 in | — | — | — | — | County |
| 23 Jul 2022 | Hail | 1.00 in | — | — | — | — | County |
| 21 Jul 2022 | Hail | 1.00 in | — | — | — | — | County |
| 21 Jul 2022 | Hail | 1.00 in | — | — | — | — | County |
| 14 Jun 2022 | Hail | 1.75 in | — | — | — | — | County |
| 22 Apr 2022 | Hail | 0.88 in | — | — | — | — | County |
| 22 Apr 2022 | Hail | 1.00 in | — | — | — | — | County |
| 28 Aug 2021 | Hail | 1.00 in | — | — | — | — | County |
| 28 Aug 2021 | Hail | 2.75 in | — | — | — | — | County |
| 28 Aug 2021 | Hail | 2.75 in | — | — | — | — | County |
| 28 Aug 2021 | Hail | 2.75 in | — | — | — | — | County |
| 28 Aug 2021 | Hail | 1.50 in | — | — | — | — | County |
| 28 Aug 2021 | Hail | 1.75 in | — | — | — | — | County |
| 22 Aug 2021 | Hail | 1.00 in | — | — | — | — | County |
| 22 Aug 2021 | Hail | 0.88 in | — | — | — | — | County |
| 22 Aug 2021 | Hail | 1.25 in | — | — | — | — | County |
| 7 Aug 2021 | Hail | 1.00 in | — | — | — | — | County |
| 7 Aug 2021 | Hail | 1.50 in | — | — | — | — | County |
| 7 Aug 2021 | Hail | 1.00 in | — | — | — | — | County |
| 7 Aug 2021 | Hail | 1.00 in | — | — | — | — | County |
| 11 Jun 2021 | Hail | 1.00 in | — | — | — | — | County |
| 23 Aug 2020 | Hail | 4.00 in | — | — | — | — | County |
| 23 Aug 2020 | Hail | 1.00 in | — | — | — | — | County |
| 20 Jun 2020 | Hail | 0.75 in | — | — | — | — | County |
| 20 Jun 2020 | Hail | 1.25 in | — | — | — | — | County |
| 20 Jun 2020 | Hail | 1.00 in | — | — | — | — | County |
| 4 Jun 2020 | Hail | 1.00 in | — | — | — | — | County |
| 6 Apr 2020 | Hail | 1.50 in | — | — | — | — | County |
| 6 Apr 2020 | Hail | 0.88 in | — | — | — | — | County |
| 6 Apr 2020 | Hail | 1.00 in | — | — | — | — | County |
| 6 Apr 2020 | Hail | 1.75 in | — | — | — | — | County |
| 17 Aug 2019 | Hail | 1.00 in | — | — | — | — | County |
| 4 Jun 2019 | Hail | 1.00 in | — | — | — | — | County |
| 4 Jun 2019 | Hail | 1.25 in | — | — | — | — | County |
| 27 Aug 2018 | Hail | 1.75 in | — | — | — | — | County |
| 26 Aug 2018 | Hail | 1.25 in | — | — | — | — | County |
| 2 Jul 2018 | Hail | 1.00 in | — | — | — | — | County |
| 19 Sep 2017 | Hail | 1.50 in | — | — | — | — | County |
| 19 Sep 2017 | Hail | 1.00 in | — | — | — | — | County |
| 19 Sep 2017 | Hail | 0.75 in | — | — | — | — | County |
| 19 Sep 2017 | Hail | 1.00 in | — | — | — | — | County |
| 19 Sep 2017 | Hail | 1.50 in | — | — | — | — | County |
| 5 Jul 2017 | Hail | 1.75 in | — | — | — | — | County |
| 5 Jul 2017 | Hail | 1.00 in | — | — | — | — | County |
| 5 Jul 2017 | Hail | 1.50 in | — | — | — | — | County |
| 5 Jul 2017 | Hail | 1.00 in | — | — | — | — | County |
| 5 Jul 2017 | Hail | 1.00 in | — | — | — | — | County |
| 5 Jul 2017 | Hail | 1.00 in | — | — | — | — | County |
| 5 Jul 2017 | Hail | 1.00 in | — | — | — | — | County |
| 5 Jul 2017 | Hail | 1.75 in | — | — | — | — | County |
| 18 Jun 2017 | Hail | 1.00 in | — | — | — | — | County |
| 13 Jun 2017 | Hail | 1.00 in | — | — | — | — | County |
| 13 Jun 2017 | Hail | 1.00 in | — | — | — | — | County |
| 1 Aug 2016 | Hail | 0.88 in | — | — | — | — | County |
| 1 Aug 2016 | Hail | 0.75 in | — | — | — | — | County |
| 1 Aug 2016 | Hail | 1.00 in | — | — | — | — | County |
| 1 Aug 2016 | Hail | 1.00 in | — | — | — | — | County |
| 3 Jun 2016 | Hail | 1.00 in | — | — | — | — | County |
| 26 May 2016 | Hail | 1.00 in | — | — | — | — | County |
| 26 May 2016 | Hail | 1.00 in | — | — | — | — | County |
| 26 May 2016 | Hail | 0.88 in | — | — | — | — | County |
| 6 Aug 2015 | Hail | 0.88 in | — | — | — | — | County |
| 5 Aug 2015 | Hail | 1.00 in | — | — | — | — | County |
| 17 Jul 2015 | Hail | 1.00 in | — | — | — | — | County |
| 17 Jul 2015 | Hail | 1.00 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 |
| 5 Jul 2015 | Hail | 1.00 in | — | — | — | — | County |
| 5 Jul 2015 | Hail | 1.75 in | — | — | — | — | County |
| 5 Jul 2015 | Hail | 2.00 in | — | — | — | — | County |
| 27 Jun 2015 | Hail | 1.00 in | — | — | — | — | County |
| 22 Jun 2015 | Hail | 1.00 in | — | — | — | — | County |
| 21 Jun 2015 | Hail | 1.75 in | — | — | — | — | County |
| 21 Jun 2015 | Hail | 1.00 in | — | — | — | — | County |
| 21 Jun 2015 | Hail | 1.50 in | — | — | — | — | County |
| 21 Jun 2015 | Hail | 1.75 in | — | — | — | — | County |
| 21 Jun 2015 | Hail | 1.00 in | — | — | — | — | County |
| 21 Jun 2015 | Hail | 1.00 in | — | — | — | — | County |
| 21 Jun 2015 | Hail | 2.75 in | — | — | — | — | County |
| 28 May 2015 | Hail | 0.75 in | — | — | — | — | County |
| 3 Aug 2014 | Hail | 1.00 in | — | — | — | — | County |
| 3 Aug 2014 | Hail | 1.25 in | — | — | — | — | County |
| 3 Aug 2014 | Hail | 1.75 in | — | — | — | — | County |
| 3 Aug 2014 | Hail | 1.00 in | — | — | — | — | County |
| 3 Aug 2014 | Hail | 1.00 in | — | — | — | — | County |
| 3 Aug 2014 | Hail | 0.88 in | — | — | — | — | County |
| 13 Jun 2014 | Hail | 1.00 in | — | — | — | — | County |
| 18 Sep 2013 | Hail | 2.00 in | — | — | — | — | County |
| 18 Sep 2013 | Hail | 1.00 in | — | — | — | — | County |
| 18 Sep 2013 | Hail | 1.75 in | — | — | — | — | County |
| 18 Sep 2013 | Hail | 1.75 in | — | — | — | — | County |
| 18 Sep 2013 | Hail | 1.00 in | — | — | — | — | County |
| 18 Sep 2013 | Hail | 1.50 in | — | — | — | — | County |
| 18 Sep 2013 | Hail | 1.00 in | — | — | — | — | County |
| 18 Sep 2013 | Hail | 1.75 in | — | — | — | — | County |
| 29 Aug 1993 | Hail | 0.75 in | $50 | $500 | — | — | County |
| 28 Aug 1993 | Hail | 2.75 in | $5K | $50K | — | — | County |
| 28 Aug 1993 | Hail | 0.75 in | $500 | $500 | — | — | County |
Questions and answers
How many hail events has Brown County had?
438 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 Brown County?
29 Jun 2026 (Hail, 1.00 in). Records reach NCEI about 120 days after the month ends.
What was the most damaging hail event recorded in Brown County?
The hail of 28 Aug 1993, with property damage estimated by NCEI at $5K and crop damage at $50K.
How does Brown County compare with South Dakota for hail?
25.6 events per 100 square miles against 22.4 statewide; the county holds 438 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.