Hail history for Jackson County, South Dakota
Every NOAA hail report filed in Jackson County since 1962, with preliminary National Weather Service reports to November 3, 2026.
Readout · Jackson County
- Last hail
- Aug 11, 2026
- 1.25 in, half dollar size · preliminary
- Hail days, last 5 years
- 18
- since Nov 3, 2021 · 35 reports
- Largest ever
- 4.50 in
- softball · Jun 28, 2025
297 reports on 160 days since 1962 · #16 of 67 South Dakota counties
Hail map · Jackson County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Jackson County
The latest hail report in Jackson County is from August 11, 2026, 1.25 in (half dollar size). Since November 3, 2021 there have been 18 separate hail days; the biggest stones in that time were 4.50 in on June 28, 2025.
Over the 20 years 2006–2025, Jackson County logged 182 reports on 95 hail days, about 9.1 reports a year. That is 65% more than the median South Dakota county (5.5 a year) and ranks #16 of 67 South Dakota counties for all-time reports. Jackson County holds 2% of all 17,223 hail reports in South Dakota.
10% of reports with a size were 2 inches (hen egg) or larger, against 8% for the median South Dakota county. The largest hail on record here is 4.50 in (softball) on June 28, 2025 near 1.5 E Cactus Flats.
Reports were down 36% in 2016–2025 (71) compared with 2006–2015 (111). The busiest year was 2003, with 24 reports on 8 days. Hail here peaks in June (34% of reports); 49% fall between April and June.
Reports a year 2006–2025 average
- Jackson County 9.1
- Median South Dakota county 5.5
Hail days 2006–2025
- Jackson County 95
- Median South Dakota county 54
Share 2 in or larger of sized reports
- Jackson County 10%
- Median South Dakota county 8%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 4 | 1 | 5 | ||||||||||
| 2025 | 2 | 6 | 8 | ||||||||||
| 2024 | 2 | 3 | 1 | 1 | 7 | ||||||||
| 2023 | 7 | 7 | |||||||||||
| 2022 | 1 | 5 | 1 | 1 | 8 | ||||||||
| 2021 | 1 | 1 | 2 | ||||||||||
| 2020 | 8 | 3 | 5 | 1 | 17 | ||||||||
| 2019 | 2 | 3 | 3 | 2 | 10 | ||||||||
| 2018 | 4 | 2 | 6 | ||||||||||
| 2017 | 2 | 2 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 11, 2026 | 1 | 1.25 in | View |
| Jun 28, 2026 | 1 | 2.00 in | — |
| Jun 2, 2026 | 3 | 1.75 in | — |
| Jul 20, 2025 | 2 | 1.25 in | — |
| Jul 9, 2025 | 1 | 1.00 in | — |
| Jul 1, 2025 | 3 | 1.75 in | — |
| Jun 28, 2025 | 2 | 4.50 in | — |
| Sep 14, 2024 | 1 | 0.88 in | — |
| Aug 21, 2024 | 1 | 0.88 in | — |
| Jun 25, 2024 | 2 | 1.75 in | — |
| Jun 15, 2024 | 1 | 1.75 in | — |
| Apr 15, 2024 | 2 | 1.75 in | — |
| Jun 27, 2023 | 5 | 1.00 in | — |
| Jun 23, 2023 | 2 | 1.25 in | — |
| Sep 16, 2022 | 1 | 0.88 in | — |
| Aug 4, 2022 | 1 | 1.00 in | — |
| Jun 13, 2022 | 5 | 3.25 in | — |
| Apr 22, 2022 | 1 | 3.50 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jun 28, 2025 | 4.50 insoftball | 1.5 E Cactus Flats | 17:25 local · NCEI |
| Apr 22, 2022 | 3.50 inteacup | Cottonwood | 16:55 local · NCEI |
| Jun 13, 2022 | 3.25 inteacup | 8.1 SE Interior | 22:53 local · NCEI |
| Jul 20, 2020 | 2.75 inbaseball | 12.97 ENE Long Valley | 14:30 local · NCEI |
| May 3, 2020 | 2.75 inbaseball | 5 NNE Potato Creek | 18:05 local · NCEI |
Size of every report
- Under 1 in 87 29%
- 1–2 in 180 61%
- 2 in + 30 10%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Aug 11, 2026 | 1.25 inhalf dollar | 1 NE Cedar Pass | 03:32 UTC · NWS prelim. |
| Jun 28, 2026 | 2.00 inhen egg | 0.69 N Interior | 21:35 local · NCEI |
| Jun 2, 2026 | 1.00 inquarter | 8.1 SE Interior | 14:39 local · NCEI |
| Jun 2, 2026 | 1.75 ingolf ball | Cactus Flats | 13:21 local · NCEI |
| Jun 2, 2026 | 1.75 ingolf ball | 0.69 N Cactus Flats | 13:19 local · NCEI |
| Jul 20, 2025 | 1.25 inhalf dollar | 6.93 N Belvidere | 17:55 local · NCEI |
| Jul 20, 2025 | 0.88 innickel | 6.93 N Belvidere | 17:40 local · NCEI |
| Jul 9, 2025 | 1.00 inquarter | 7.07 NNE Kadoka | 17:50 local · NCEI |
| Jul 1, 2025 | 1.00 inquarter | 5.7 WNW Kadoka | 17:02 local · NCEI |
| Jul 1, 2025 | 1.25 inhalf dollar | 2.13 SSW Cactus Flats | 16:25 local · NCEI |
| Jul 1, 2025 | 1.75 ingolf ball | 0.69 S Cactus Flats | 16:25 local · NCEI |
| Jun 28, 2025 | 1.00 inquarter | 0.5 W Kadoka | 17:50 local · NCEI |
Cities and towns in Jackson County
| Place | Reports | Largest |
|---|---|---|
| Interior | 34 | 2.50 in |
| Kadoka | 28 | 2.50 in |
| Belvidere | 14 | 1.75 in |
| Wanblee | 11 | 1.75 in |
| Cottonwood | 10 | 3.50 in |
Questions about hail in Jackson County
How often does it hail in Jackson County, South Dakota?
297 hail reports have been logged in Jackson County since 1962. Over the 20 years 2006–2025 that averages 9.1 reports a year. That ranks #16 of 67 South Dakota counties by number of reports.
When is hail season in Jackson County?
Most reports come in June, July, August. June alone accounts for 34% of all reports.
What is the largest hail recorded in Jackson County?
4.50 in (softball size) on June 28, 2025 near 1.5 E Cactus Flats. 10% of reports here were 2 inches or larger.
When did it last hail in Jackson County?
The most recent report in this data is from August 11, 2026 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Jackson County had in the last five years?
18 separate days with hail reports since November 3, 2021, adding up to 35 reports. The most recent was August 11, 2026.
Where does this hail data come from?
Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.