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Hail dates in Rock County, Minnesota
The National Weather Service has recorded hail in Rock County on 12 days since 2016 (21 separate reports, 16 of them quarter-size or larger). The largest stone on record was 2.75" (baseball) on April 28, 2025; the most recent hail was May 17, 2026. Every row below is an official NWS record. Check hail at your exact address, free →
Every hail day in Rock 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 |
|---|---|---|---|
| 2026-05-17 | 1.25" (half dollar) | 1 | — |
| 2026-04-13 | 1.50" (ping pong ball) | 1 | Hail occurred for 5 to 10 minutes, largest briefly up to ping-pong ball size. |
| 2025-09-21 | 1.25" (half dollar) | 3 | Hail size varied between quarter and half dollar size. |
| 2025-04-28 | 2.75" (baseball) | 3 | A very non-uniform hailstone measured at 2.8 inches at its widest. |
| 2023-07-26 | 1.00" (quarter) | 1 | — |
| 2023-07-13 | 2.50" (tennis ball) | 2 | — |
| 2022-05-29 | 1.00" (quarter) | 1 | Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture. |
| 2021-08-28 | 1.75" (golf ball) | 2 | — |
| 2021-08-22 | 1.00" (quarter) | 1 | — |
| 2019-06-24 | 1.25" (half dollar) | 1 | Leaves stripped from trees. |
| 2017-06-12 | 0.75" (penny) | 1 | — |
| 2016-07-10 | 1.75" (golf ball) | 4 | — |
Hail days by year
| Year | Hail days | Reports | Largest |
|---|---|---|---|
| 2026 | 2 | 2 | 1.50" (ping pong ball) |
| 2025 | 2 | 6 | 2.75" (baseball) |
| 2023 | 2 | 3 | 2.50" (tennis ball) |
| 2022 | 1 | 1 | 1.00" (quarter) |
| 2021 | 2 | 3 | 1.75" (golf ball) |
| 2019 | 1 | 1 | 1.25" (half dollar) |
| 2017 | 1 | 1 | 0.75" (penny) |
| 2016 | 1 | 4 | 1.75" (golf ball) |
Damaging wind in Rock County
Thunderstorm wind of 58 mph or more (the NWS severe threshold), 48 reports since 2016, strongest 85 mph. 2 tornadoes recorded in the county in the same period. Wind and tornado records are included in the extended report.
| Date | Peak gust | Reports | NWS narrative |
|---|---|---|---|
| 2022-05-30 | 85 mph | 8 | Concrete silo collapsed due to thunderstorm winds. |
| 2022-07-05 | 83 mph | 2 | An extended period of thunderstorm wind gusts of 58 mph or greater was measured by Minnesota Road Weather Information System site MN006 1… |
| 2018-04-13 | 83 mph | 2 | Numerous power poles down along I-90 and either side at Magnolia exit. |
| 2026-06-28 | 81 mph | 1 | Numerous trees were blown down around town with a few outbuildings damaged. |
| 2025-09-14 | 75 mph | 3 | The roof on a cattle barn was blown off by thunderstorm wind gusts. Several surrounding tree limbs from 6 to 10 inches in diameter were a… |
| 2021-08-28 | 75 mph | 7 | Thunderstorm wind gusts knocked down several trees with trunks 2 to 3 feet in diameter. | Power lines were taken down as well, which resu… |
| 2022-10-23 | 74 mph | 1 | A thunderstorm wind gust of 74 mph was measured by Minnesota Road Weather Information System site MN147 near Magnolia. |
| 2023-07-13 | 72 mph | 2 | Thunderstorm wind gusts up to 73 mph were measured by a personal weather station 1 mile north-northeast of Luverne. |
Was hail recorded at your Rock County address? Check free
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against every hail event the National Weather Service recorded in the last 10 years and show you
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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.
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 Rock County?
May 17, 2026, per the NWS Storm Events record. The largest since 2016 was 2.75" (baseball) on April 28, 2025.
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
Lyon County, IA (18 mi) · Pipestone County, MN (24 mi) · Nobles County, MN (25 mi) · Minnehaha County, SD (26 mi) · Lincoln County, SD (29 mi) · Murray County, MN (35 mi) · Osceola County, IA (35 mi) · Moody County, SD (35 mi)
See also: Minnesota hail history by city · all counties