HailEvidence → hail history by county → South Dakota → Dewey County
Hail dates in Dewey County, South Dakota
The National Weather Service has recorded hail in Dewey County on 35 days since 2016 (72 separate reports, 65 of them quarter-size or larger). The largest stone on record was 4.00" (softball) on July 5, 2022; the most recent hail was June 3, 2026. Every row below is an official NWS record. Check hail at your exact address, free →
Every hail day in Dewey County since 2016
One row per day the NWS logged hail somewhere in the county. The narrative names the town; the free check below narrows it to your address.
| Date | Largest hail | Reports | NWS narrative |
|---|---|---|---|
| 2026-06-03 | 1.00" (quarter) | 2 | Quarter-sized hail (1.00 inch) was observed three miles northeast of Green Grass. |
| 2025-07-26 | 1.50" (ping pong ball) | 1 | Ping-Pong ball-sized hail was reported. |
| 2025-07-14 | 1.00" (quarter) | 1 | — |
| 2025-06-15 | 1.00" (quarter) | 1 | — |
| 2024-07-29 | 0.88" (nickel) | 1 | — |
| 2024-06-07 | 1.00" (quarter) | 1 | — |
| 2024-05-19 | 1.00" (quarter) | 2 | — |
| 2023-07-30 | 1.00" (quarter) | 1 | — |
| 2023-06-20 | 1.00" (quarter) | 2 | — |
| 2022-07-21 | 1.00" (quarter) | 1 | — |
| 2022-07-05 | 4.00" (softball) | 4 | A trained spotter estimated 70 to 80 mph winds. The wind and large hail broke skylights on the house. In addition, a fence was damaged, along with tree branc… |
| 2022-06-24 | 1.25" (half dollar) | 3 | — |
| 2022-06-23 | 1.75" (golf ball) | 1 | In addition to the hail, 50 to 60 mph wind gusts were estimated to have occurred. |
| 2022-05-12 | 1.00" (quarter) | 1 | — |
| 2022-04-22 | 2.00" (hen egg) | 2 | The large hail broke vehicle and house windows. |
| 2021-09-19 | 1.25" (half dollar) | 1 | Quarter to half dollar hailstones lasted a couple minutes and produced minor damage to a home. |
| 2021-08-23 | 1.25" (half dollar) | 3 | — |
| 2021-08-14 | 1.50" (ping pong ball) | 1 | — |
| 2021-07-08 | 1.75" (golf ball) | 2 | — |
| 2021-07-03 | 1.00" (quarter) | 1 | A storm produced hail for nearly 30 minutes with large hail to quarter size occurring at the end of the storm. |
| 2021-06-08 | 1.75" (golf ball) | 3 | — |
| 2020-08-26 | 2.00" (hen egg) | 8 | — |
| 2020-07-22 | 0.88" (nickel) | 1 | — |
| 2019-08-09 | 1.00" (quarter) | 1 | — |
| 2019-08-06 | 1.75" (golf ball) | 1 | A severe thunderstorm with large hail and destructive winds left southeast Corson and continued southeast across eastern Dewey county destroying crop and gra… |
| 2019-07-20 | 1.00" (quarter) | 1 | — |
| 2018-07-19 | 1.00" (quarter) | 2 | — |
| 2018-06-27 | 1.50" (ping pong ball) | 1 | Large hail and damaging winds destroyed many acres of crops and pastureland as a severe thunderstorm moved southeast out of Dewey into northwest Sully county. |
| 2018-06-16 | 1.25" (half dollar) | 3 | Hail covered the ground up to 2 inches in spots. |
| 2018-06-10 | 1.00" (quarter) | 1 | — |
| 2018-06-05 | 1.25" (half dollar) | 2 | — |
| 2018-06-01 | 2.25" (hen egg) | 2 | — |
| 2017-08-21 | 1.75" (golf ball) | 1 | — |
| 2016-07-22 | 2.50" (tennis ball) | 10 | Golf ball size hail broke some vehicle windshields. |
| 2016-07-16 | 1.00" (quarter) | 3 | — |
Hail days by year
| Year | Hail days | Reports | Largest |
|---|---|---|---|
| 2026 | 1 | 2 | 1.00" (quarter) |
| 2025 | 3 | 3 | 1.50" (ping pong ball) |
| 2024 | 3 | 4 | 1.00" (quarter) |
| 2023 | 2 | 3 | 1.00" (quarter) |
| 2022 | 6 | 12 | 4.00" (softball) |
| 2021 | 6 | 11 | 1.75" (golf ball) |
| 2020 | 2 | 9 | 2.00" (hen egg) |
| 2019 | 3 | 3 | 1.75" (golf ball) |
| 2018 | 6 | 11 | 2.25" (hen egg) |
| 2017 | 1 | 1 | 1.75" (golf ball) |
| 2016 | 2 | 13 | 2.50" (tennis ball) |
Damaging wind in Dewey County
Thunderstorm wind of 58 mph or more (the NWS severe threshold), 84 reports since 2016, strongest 94 mph. Wind and tornado records are included in the extended report.
| Date | Peak gust | Reports | NWS narrative |
|---|---|---|---|
| 2020-06-06 | 94 mph | 4 | A wind gust of 94 mph brought down many large tree branches. |
| 2018-07-03 | 90 mph | 3 | Estimated ninety mph winds destroyed an empty trailer along with tipping another one over. A delivery truck was also tipped over and a mo… |
| 2022-07-05 | 84 mph | 3 | A trained spotter reported extensive damage north of Isabel. There was damage to trees, some uprooted, and damaged siding and broken wind… |
| 2024-07-13 | 81 mph | 4 | A public caller stated that thunderstorm wind gusts uprooted trees. |
| 2018-06-05 | 81 mph | 5 | Estimated eighty mph winds tipped a mobile home over. |
| 2025-07-21 | 72 mph | 1 | A peak wind gust of 73 mph was recorded at the South Dakota State University mesonet station six miles north-northwest of Lantry. |
| 2021-06-08 | 72 mph | 4 | — |
| 2019-07-20 | 72 mph | 2 | A few tree limbs were downed by estimated sixty mph winds. |
Was hail recorded at your Dewey County address? Check free
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Address lookup by the U.S. Census Bureau geocoder. Records: NOAA NCEI Storm Events (final) plus SPC preliminary reports for storms newer than the latest compile — see methodology.
Need it in writing for a claim?
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10-year hail history for one address + the disputed-date finding.
15-year window, wind & tornado records, plus a drafted claim-appeal letter.
Questions
What date did hail last hit Dewey County?
June 3, 2026, per the NWS Storm Events record. The largest since 2016 was 4.00" (softball) on July 5, 2022.
Does a county record prove hail at my house?
No. NWS records are point and path observations. The absence of a nearby report does NOT prove that no hail fell at this address — it means no observation was logged nearby. A report of nearby hail documents the event; it does not by itself prove damage to a specific structure. The free check above shows what was recorded near your specific address, with distances.
Nearby counties
Corson County, SD (32 mi) · Ziebach County, SD (37 mi) · Walworth County, SD (50 mi) · Potter County, SD (53 mi) · Sully County, SD (55 mi) · Stanley County, SD (60 mi) · Campbell County, SD (60 mi) · Sioux County, ND (61 mi)
See also: South Dakota hail history by city · all counties