⌁ HailEvidence NWS storm records · per-address verification

HailEvidence → hail history by county → South Dakota → Walworth County

Hail dates in Walworth County, South Dakota

The National Weather Service has recorded hail in Walworth County on 25 days since 2016 (47 separate reports, 45 of them quarter-size or larger). The largest stone on record was 3.00" (tea cup) on August 23, 2018; the most recent hail was June 2, 2026. Every row below is an official NWS record. Check hail at your exact address, free →

Every hail day in Walworth 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.

DateLargest hailReportsNWS narrative
2026-06-02 1.00" (quarter) 1 Quarter-sized hail (1.00 inch) was reported near Hoven.
2025-08-13 1.00" (quarter) 1 —
2025-08-05 1.00" (quarter) 1 —
2023-07-30 1.75" (golf ball) 2 —
2022-06-24 1.00" (quarter) 1 —
2021-08-28 2.50" (tennis ball) 3 —
2021-07-26 1.00" (quarter) 1 —
2020-07-10 2.00" (hen egg) 1 —
2020-07-04 1.00" (quarter) 3 —
2020-06-07 1.75" (golf ball) 2 —
2019-08-06 2.75" (baseball) 7 Golf ball to baseball size hail broke home and vehicle windows.
2019-07-20 1.00" (quarter) 1 —
2019-07-16 1.50" (ping pong ball) 2 —
2019-06-27 0.88" (nickel) 1 —
2018-09-02 1.00" (quarter) 1 —
2018-08-23 3.00" (tea cup) 2 —
2018-06-01 1.00" (quarter) 2 —
2017-09-19 1.75" (golf ball) 2 —
2017-07-21 1.00" (quarter) 1 —
2017-07-19 1.00" (quarter) 1 —
2016-08-15 1.25" (half dollar) 1 —
2016-08-10 1.25" (half dollar) 2 —
2016-08-08 1.00" (quarter) 2 —
2016-07-30 1.50" (ping pong ball) 3 —
2016-05-30 2.00" (hen egg) 3 —

Hail days by year

YearHail daysReportsLargest
2026111.00" (quarter)
2025221.00" (quarter)
2023121.75" (golf ball)
2022111.00" (quarter)
2021242.50" (tennis ball)
2020362.00" (hen egg)
20194112.75" (baseball)
2018353.00" (tea cup)
2017341.75" (golf ball)
20165112.00" (hen egg)

Damaging wind in Walworth County

Thunderstorm wind of 58 mph or more (the NWS severe threshold), 79 reports since 2016, strongest 100 mph. 2 tornadoes recorded in the county in the same period. Wind and tornado records are included in the extended report.

DatePeak gustReportsNWS narrative
2018-06-05100 mph4—
2018-07-0496 mph5Several campers were overturned along with many boats damaged at the marina as estimated ninety mph winds occurred. There were people in …
2025-07-0981 mph6In Mobridge, powerful thunderstorm winds broke three power poles. The roof of a business, which had been previously damaged, was complete…
2020-06-0681 mph1An estimated eighty mph wind destroyed a ten unit storage shed. The back wall was pushed over with metal spread downwind up to a quarter …
2025-07-2376 mph1A peak wind gust of 76 mph was measured by the South Dakota Department of Transportation weather station two miles south of Lowry.
2018-05-1772 mph4Sixty mph winds were estimated.
2025-09-1470 mph1The Walworth County Emergency Manager estimated the wind speed to top out between 60 to 70 mph as the storm passed through after the ASOS…
2022-04-2370 mph1Damage to brick roof/facade on the old school building.

Was hail recorded at your Walworth County address? Check free

Type a street address — or just a ZIP code. We measure it against every hail event the National Weather Service recorded in the last 10 years and show you how many fall within 1, 3 and 10 miles — free, instantly, nothing stored. Rural property with no street address? Enter coordinates as 44.05, -107.31.

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?

The verification report lists every NWS hail (and, in the extended version, wind and tornado) record within 1, 3 and 10 miles of one address, each linked to its official source, with the disputed date called out in plain English. Adjusters can verify every line.

$29standard report

10-year hail history for one address + the disputed-date finding.

$49extended report

15-year window, wind & tornado records, plus a drafted claim-appeal letter.

Questions

What date did hail last hit Walworth County?

June 2, 2026, per the NWS Storm Events record. The largest since 2016 was 3.00" (tea cup) on August 23, 2018.

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

Campbell County, SD (22 mi) · Potter County, SD (27 mi) · Edmunds County, SD (38 mi) · McPherson County, SD (39 mi) · Sully County, SD (49 mi) · Dewey County, SD (50 mi) · Faulk County, SD (53 mi) · Corson County, SD (54 mi)

See also: South Dakota hail history by city · all counties

Honest limits: 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. Counties are attributed by the NWS county code on each report; zone-coded wind reports are not counted here.