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Roberts County, SD hail & severe wind history
143 storm reports on file for Roberts County between 2010-05-22 and 2026-06-15 — 45 hail and 98 severe thunderstorm wind. That averages 8.4 reports a year, and Jul is the busiest month.
Hail reports
45
2.6 per year
Largest hail
2.5"
tennis ball size · 2015-07-17
Strongest gust
96 mph
83 kt · 2020-06-04
Reported damage
$0
property + crop, as filed
Storm days
70
distinct days with a report
Busiest year
2022
19 reports
Search every Roberts County report
Filter the full record below — pick a year, narrow to a month, or drag the hail-size slider to see only the storms big enough to dent a roof (1" and up is the usual threshold insurers care about).
143 of 143 reports match.
Reports by month for the current filter — the shape of Roberts County’s storm season.
| Date | Type | Size / gust | Nearest location | Report detail |
|---|---|---|---|---|
| 2026-06-15 15:48 | Wind | 56 kt 64 mph | 1.19 mi NW of Summit | No narrative filed · source: Mesonet |
| 2026-06-15 16:00 | Wind | 50 kt 58 mph | 4.93 mi SSW of Peever | No narrative filed · source: Mesonet |
| 2025-09-14 15:21 | Wind | 50 kt 58 mph | 3.59 mi NNW of Victor | No narrative filed · source: Mesonet |
| 2025-09-14 15:26 | Wind | 58 kt 67 mph | 3.59 mi NNW of Victor | No narrative filed · source: Mesonet |
| 2025-08-05 20:20 | Wind | 52 kt 60 mph | 7.38 mi W of Goodwill | Thunderstorm wind gusts estimated at 60 mph resulted in broken branches. |
| 2025-07-28 16:43 | Hail | 0.88" nickel | 3.45 mi N of Victor | No narrative filed · source: COOP Observer |
| 2025-07-28 17:07 | Hail | 1" quarter | .69 mi N of New Effington | No narrative filed · source: Public |
| 2025-07-28 17:39 | Wind | 59 kt 68 mph | 1.19 mi NW of Summit | No narrative filed · source: Mesonet |
| 2025-07-28 17:44 | Wind | 67 kt 77 mph | 1.19 mi NW of Summit | A peak gust of 77 mph was recorded by the South Dakota Department of Transportation mesonet station one mile north-northwest of Summit. |
| 2025-07-28 17:45 | Wind | 61 kt 70 mph | .84 mi NE of Wilmot | A COOP observer in Wilmot relayed that several large tree branches were downed around town by the thunderstorm winds. |
| 2025-07-21 03:15 | Wind | 52 kt 60 mph | 3.75 mi NNE of Peever | A trained spotter estimated winds up to 60 mph were responsible for some minor tree damage, including a few branches down. |
| 2025-07-15 00:14 | Wind | 56 kt 64 mph | 0 mi N of Hammer | The caller stated that their calf shelters were thrown into the fence by estimated 65 mph wind gusts. |
| 2025-07-15 00:36 | Wind | 56 kt 64 mph | 3.59 mi NNW of Victor | No narrative filed · source: Mesonet |
| 2025-07-15 01:00 | Hail | 1" quarter | 3.95 mi SSE of Rosholt | No narrative filed · source: Public |
| 2025-07-15 01:00 | Wind | 52 kt 60 mph | 3.95 mi SSE of Rosholt | A farmer estimated winds up to 60 mph in combination with the hail caused scattered crop damage. |
| 2025-05-15 03:17 | Wind | 52 kt 60 mph | 1.19 mi NW of Summit | No narrative filed · source: Mesonet |
| 2024-07-31 11:04 | Wind | 56 kt 64 mph | 1.19 mi NW of Summit | No narrative filed · source: Mesonet |
| 2024-07-31 11:09 | Wind | 56 kt 64 mph | 1.19 mi NW of Summit | No narrative filed · source: Mesonet |
| 2024-07-31 11:15 | Wind | 54 kt 62 mph | .97 mi W of Sisseton Arpt | No narrative filed · source: AWOS |
| 2024-07-31 11:45 | Wind | 61 kt 70 mph | .69 mi N of Claire City | Emergency management reported broken windows due to blow debris from thunderstorm winds. |
| 2024-07-31 11:45 | Wind | 52 kt 60 mph | 0 mi N of Rosholt | A trained spotter estimated 60 mph thunderstorm wind gusts had caused tree damage with a number of branches down. |
| 2024-07-31 16:20 | Hail | 1.25" half dollar | 2.81 mi N of Sisseton Arpt | No narrative filed · source: Public |
| 2024-06-12 05:28 | Wind | 50 kt 58 mph | 1.19 mi NW of Summit | No narrative filed · source: Mesonet |
| 2023-08-10 18:10 | Wind | 61 kt 70 mph | 2.84 mi SE of Ortley | A heavy wooden trailer with a water tank on it was blown approximately 150 yards across two ditches before hitting a neighbors house. |
| 2023-07-25 19:49 | Wind | 55 kt 63 mph | 3.59 mi NNW of Victor | No narrative filed · source: Mesonet |
| 2023-06-07 19:35 | Wind | 53 kt 61 mph | .97 mi W of Sisseton Arpt | An Automated Surface Observation Station three miles east of Sisseton recorded a wind gusts of 61 mph. |
| 2022-09-15 00:26 | Wind | 52 kt 60 mph | 1.19 mi NW of Summit | This report was recorded at mesonet station 55 a milee west-northwest of Summit. |
| 2022-09-15 00:34 | Wind | 54 kt 62 mph | 4.93 mi SSW of Peever | This report was recorded at mesonet station 143 six miles south-southwest of Peever. |
| 2022-08-05 23:24 | Wind | 50 kt 58 mph | 1.94 mi W of Corona | No narrative filed · source: Mesonet |
| 2022-07-20 18:50 | Wind | 52 kt 60 mph | .69 mi S of Sisseton | A COOP observer reported an estimated wind gust of 60 mph. |
| 2022-07-20 18:52 | Wind | 57 kt 66 mph | .97 mi W of Sisseton Arpt | No narrative filed · source: ASOS |
| 2022-07-20 18:56 | Wind | 56 kt 64 mph | .69 mi S of Sisseton | The Emergency Manager reported several trees and power lines down due to the thunderstorm winds. |
| 2022-07-20 19:24 | Wind | 52 kt 60 mph | 5.64 mi SSW of Peever | An estimated 60 mph wind gust was reported by the public. |
| 2022-07-20 19:41 | Hail | 1" quarter | 4.84 mi S of Wilmot | No narrative filed · source: Trained Spotter |
| 2022-06-24 21:44 | Wind | 52 kt 60 mph | 3.59 mi NNW of Victor | No narrative filed · source: Mesonet |
| 2022-06-20 21:27 | Wind | 56 kt 64 mph | 4.93 mi SSW of Peever | No narrative filed · source: Mesonet |
| 2022-06-20 21:27 | Wind | 50 kt 58 mph | .97 mi W of Sisseton Arpt | No narrative filed · source: ASOS |
| 2022-05-30 12:57 | Hail | 1" quarter | 0 mi N of Corona | No narrative filed · source: Public |
| 2022-05-30 13:58 | Hail | 1" quarter | 9.14 mi NE of Corona | No narrative filed · source: Trained Spotter |
| 2022-05-12 17:27 | Wind | 65 kt 75 mph | .69 mi N of Ortley | Trees were uprooted in Ortley by estimated 75 mph winds. |
| 2022-05-12 17:28 | Wind | 60 kt 69 mph | 6.19 mi ENE of Corona | No narrative filed · source: Public |
| 2022-05-12 17:36 | Wind | 73 kt 84 mph | 1.19 mi NW of Summit | No narrative filed · source: Mesonet |
| 2022-05-12 17:48 | Wind | 70 kt 81 mph | 7.76 mi E of Sisseton Arpt | Campers were rolled by estimated 80 mph wind gusts. |
| 2022-05-12 17:56 | Wind | 70 kt 81 mph | 0 mi N of Rosholt | Trees were downed across Rosholt by estimated 80 mph wind gusts. |
| 2022-05-12 17:56 | Wind | 51 kt 59 mph | .97 mi W of Sisseton Arpt | No narrative filed · source: AWOS |
| 2021-10-09 17:36 | Wind | 61 kt 70 mph | 2.93 mi NNW of Peever | A 30-foot trailer pulled by a pickup truck was overturned on Interstate-29 by estimated 70 mph winds. |
| 2021-08-26 08:31 | Wind | 58 kt 67 mph | 4.93 mi SSW of Peever | No narrative filed · source: Mesonet |
| 2021-08-26 13:34 | Hail | 0.88" nickel | .97 mi W of Peever | No narrative filed · source: Storm Chaser |
| 2021-08-24 05:33 | Wind | 51 kt 59 mph | 1.19 mi NW of Summit | No narrative filed · source: Mesonet |
| 2021-07-23 22:24 | Wind | 52 kt 60 mph | 7.53 mi ENE of Peever | Estimated 60 mph winds caused minor tree damage with a few limbs up to 5 inches in diameter broken off. |
| 2021-07-23 23:25 | Wind | 52 kt 60 mph | 1.69 mi SW of Sisseton | An apple tree was knocked over by estimated 60 mph winds. |
| 2021-07-23 23:29 | Wind | 55 kt 63 mph | 3.59 mi NNW of Victor | No narrative filed · source: Mesonet |
| 2021-06-11 04:24 | Wind | 51 kt 59 mph | .84 mi NE of Wilmot | No narrative filed · source: Mesonet |
| 2020-08-12 03:50 | Wind | 59 kt 68 mph | 1.19 mi NW of Summit | No narrative filed · source: Mesonet |
| 2020-07-17 22:15 | Wind | 65 kt 75 mph | .69 mi N of Claire City | Estimated seventy-five mph winds downed many trees along with causing some power outages in Claire City. |
| 2020-07-17 22:17 | Wind | 52 kt 60 mph | .69 mi S of Sisseton Arpt | No narrative filed · source: ASOS |
| 2020-07-17 22:23 | Wind | 53 kt 61 mph | 3.59 mi NNW of Victor | No narrative filed · source: Mesonet |
| 2020-07-17 22:25 | Wind | 65 kt 75 mph | .69 mi N of New Effington | Several trees were downed by estimated seventy-five mph winds in New Effington. |
| 2020-07-17 22:35 | Wind | 61 kt 70 mph | .69 mi S of Sisseton | Estimated seventy mph winds downed several trees along with causing some power outages in Sisseton. |
| 2020-07-17 22:38 | Wind | 51 kt 59 mph | 5.05 mi SSW of Peever | No narrative filed · source: Mesonet |
| 2020-07-17 22:40 | Wind | 61 kt 70 mph | .84 mi NE of Peever | Several trees were downed in Peever by estimated seventy mph winds. |
| 2020-07-17 22:51 | Wind | 61 kt 70 mph | 1.61 mi WNW of Summit | No narrative filed · source: Mesonet |
| 2020-06-04 19:40 | Wind | 83 kt 96 mph | 1.19 mi NW of Summit | No narrative filed · source: Mesonet |
| 2020-04-06 21:36 | Hail | 1" quarter | .69 mi S of Sisseton | No narrative filed · source: COOP Observer |
| 2019-09-17 01:10 | Wind | 52 kt 60 mph | .84 mi NE of Wilmot | Estimated sixty mph winds brought down some large branches in Wilmot. |
| 2019-08-17 17:15 | Wind | 52 kt 60 mph | 7.58 mi SE of New Effington | Large branches were downed by estimated sixty mph winds. |
| 2018-07-10 04:30 | Hail | 1" quarter | .49 mi W of Summit | No narrative filed · source: Trained Spotter |
| 2018-07-10 05:22 | Hail | 1" quarter | 2.93 mi NNW of Ortley | No narrative filed · source: Public |
| 2018-07-10 05:30 | Hail | 0.88" nickel | .69 mi N of Ortley | No narrative filed · source: Fire Department/Rescue |
| 2018-07-08 20:03 | Wind | 61 kt 70 mph | .69 mi S of Sisseton | Estimated seventy mph winds downed a power pole and a tree in Sisseton. |
| 2018-07-03 08:35 | Wind | 57 kt 66 mph | .97 mi W of Sisseton Arpt | No narrative filed · source: ASOS |
| 2018-06-24 16:50 | Hail | 0.88" nickel | 3.45 mi N of Sisseton | No narrative filed · source: Emergency Manager |
| 2018-06-24 16:58 | Hail | 0.88" nickel | 2.37 mi SE of Claire City | No narrative filed · source: Public |
| 2017-07-21 17:24 | Wind | 52 kt 60 mph | 5.53 mi N of Claire City | Sixty mph winds broke off several large tree branches. |
| 2017-07-21 18:15 | Wind | 52 kt 60 mph | .69 mi N of New Effington | Sixty mph winds were estimated. |
| 2017-07-11 19:07 | Hail | 1" quarter | 2 mi SE of Peever | No narrative filed · source: Public |
| 2017-06-13 19:14 | Wind | 52 kt 60 mph | .69 mi N of Claire City | Sixty mph winds were estimated. |
| 2017-06-13 19:20 | Wind | 78 kt 90 mph | 8.98 mi S of Rosholt | An estimated ninety mph wind or higher destroyed two cabins. One was destroyed by the wind with the other one destroyed when a large tree fell onto it. |
| 2017-06-13 19:20 | Wind | 70 kt 81 mph | 2.13 mi NNE of New Effington | Several trees were uprooted along with many large branches downed by estimated eighty mph winds. |
| 2017-06-13 19:20 | Wind | 65 kt 75 mph | 2.07 mi N of New Effington | A tree was uprooted by estimated seventy-five mph winds. |
| 2017-06-13 19:20 | Wind | 50 kt 58 mph | 8.39 mi NE of Corona | No narrative filed · source: Mesonet |
| 2017-06-13 19:20 | Wind | 61 kt 70 mph | 1.38 mi N of New Effington | Seventy mph winds were estimated. |
| 2017-06-13 19:25 | Wind | 56 kt 64 mph | 2.93 mi NNE of New Effington | Large branches were downed by estimated sixty to seventy mph winds. |
| 2017-06-13 19:25 | Wind | 78 kt 90 mph | 4 mi NW of Victor | Ninety mph winds or higher took the roof off of a barn. |
| 2017-06-13 19:28 | Wind | 70 kt 81 mph | 3.95 mi NNW of Victor | Several trees were snapped by estimated eighty mph winds. |
| 2017-06-13 19:30 | Wind | 78 kt 90 mph | 3.74 mi NNW of Victor | Ninety mph winds or higher uprooted several trees along with denting several grain bins. |
| 2017-06-13 19:30 | Wind | 78 kt 90 mph | 3.66 mi NW of Victor | Several trees were uprooted by estimated ninety mph winds. |
| 2016-08-28 02:30 | Hail | 0.75" penny | 1.69 mi NW of Summit | No narrative filed · source: Public |
| 2016-08-16 17:16 | Hail | 1" quarter | 2.38 mi SE of Wilmot | No narrative filed · source: Public |
| 2016-08-10 16:58 | Wind | 62 kt 71 mph | .97 mi W of Summit | No narrative filed · source: Mesonet |
| 2016-08-10 17:00 | Hail | 1" quarter | 1.61 mi WNW of Summit | No narrative filed · source: COOP Observer |
| 2016-07-16 16:17 | Wind | 52 kt 60 mph | 4.58 mi ENE of Ortley | Sixty mph winds were estimated. |
| 2016-07-16 18:20 | Hail | 1.5" ping pong | 2.81 mi N of Wilmot | No narrative filed · source: Public |
| 2016-07-10 00:36 | Wind | 72 kt 83 mph | .97 mi W of Sisseton Arpt | No narrative filed · source: ASOS |
| 2016-07-10 00:40 | Wind | 54 kt 62 mph | 3.74 mi NNW of Victor | No narrative filed · source: Mesonet |
| 2016-07-10 00:43 | Wind | 63 kt 72 mph | 3.74 mi NNW of Victor | No narrative filed · source: Mesonet |
| 2016-07-04 21:43 | Hail | 1" quarter | 0 mi N of Goodwill | No narrative filed · source: Emergency Manager |
| 2016-06-12 13:40 | Wind | 52 kt 60 mph | 3.59 mi NNW of Victor | No narrative filed · source: Mesonet |
| 2015-07-17 18:00 | Hail | 1.75" golf ball | .69 mi S of Sisseton | No narrative filed · source: Emergency Manager |
| 2015-07-17 18:10 | Hail | 2.5" tennis ball | 2.76 mi N of Sisseton | No narrative filed · source: Public |
| 2015-07-17 18:25 | Hail | 1.75" golf ball | 2.05 mi ESE of Sisseton Arpt | Large hail caused some crop damage. |
| 2015-07-17 19:28 | Hail | 1.25" half dollar | .49 mi W of Summit | No narrative filed · source: Trained Spotter |
| 2015-07-05 19:00 | Wind | 61 kt 70 mph | 0 mi N of Corona | Seventy mph winds downed several trees and many large branches in Corona. A few power lines were also downed along with an old shed damaged. Hail and winds also knocked down and damaged some corn and beans. |
| 2014-09-20 13:53 | Hail | 0.75" penny | 2.93 mi SSE of Sisseton Arpt | No narrative filed · source: Trained Spotter |
| 2014-08-20 23:15 | Hail | 1" quarter | 11.03 mi ENE of Corona | No narrative filed · source: Public |
| 2014-07-21 20:54 | Wind | 58 kt 67 mph | .69 mi S of Sisseton | No narrative filed · source: ASOS |
| 2014-07-21 21:00 | Wind | 61 kt 70 mph | 1.45 mi W of Sisseton Arpt | Seventy mph winds downed several large tree branches. |
| 2014-07-18 22:50 | Hail | 1" quarter | 4 mi N of Victor | No narrative filed · source: Public |
| 2013-08-31 14:41 | Hail | 1.75" golf ball | 3.59 mi NNE of New Effington | No narrative filed · source: Public |
| 2013-08-31 14:49 | Hail | 0.88" nickel | 0 mi N of Rosholt | No narrative filed · source: Trained Spotter |
| 2013-06-19 23:00 | Hail | 1" quarter | 1.38 mi S of Wilmot | Quarter hail with winds over 50 mph caused major damage to a bean field along with damaging the siding of the house. |
| 2013-06-19 23:14 | Hail | 0.75" penny | .84 mi NE of Wilmot | No narrative filed · source: Trained Spotter |
| 2013-06-19 23:40 | Hail | 1" quarter | 2.81 mi N of Wilmot | Wind driven hail caused major crop damage. |
| 2013-06-16 14:18 | Hail | 1" quarter | 7.92 mi NNE of Wilmot | No narrative filed · source: Public |
| 2012-08-03 18:56 | Wind | 52 kt 60 mph | 0 mi N of Rosholt | An estimated thunderstorm wind gust of sixty mph downed trees and caused power outages. |
| 2012-07-08 18:45 | Wind | 61 kt 70 mph | 0 mi N of Rosholt | Seventy mph winds caused crop and tree damage from Rosholt to four miles north of Rosholt. |
| 2012-06-17 17:55 | Wind | 70 kt 81 mph | 1.61 mi ENE of Peever | Eighty mph winds tipped over a pickup and a trailer just east of Interstate-90. |
| 2012-06-17 17:56 | Wind | 78 kt 90 mph | 0 mi N of Peever | An estimated ninety mph wind first caused roof and siding damage to a home just west of Peever. A storage building on the northwest edge of town was blown off of its foundation with debris blow downwind. Several large trees were blown down along with many large tree branches. Additionally, the side wall of a lumber st… |
| 2012-06-17 18:10 | Hail | 1.5" ping pong | 6.2 mi NE of Ortley | No narrative filed · source: Public |
| 2012-06-17 18:15 | Hail | 1" quarter | 4.15 mi N of Ortley | No narrative filed · source: Public |
| 2012-05-28 07:29 | Hail | 0.75" penny | 2.05 mi WNW of Claire City | No narrative filed · source: Law Enforcement |
| 2012-05-28 07:30 | Hail | 0.88" nickel | .69 mi N of Claire City | No narrative filed · source: Emergency Manager |
| 2012-05-28 07:30 | Hail | 0.88" nickel | 2.98 mi WSW of Sisseton | No narrative filed · source: Emergency Manager |
| 2012-05-26 22:20 | Hail | 1" quarter | 0 mi N of Rosholt | No narrative filed · source: Trained Spotter |
| 2012-05-26 22:30 | Hail | 1" quarter | 4.15 mi N of Claire City | No narrative filed · source: Trained Spotter |
| 2012-05-05 20:30 | Hail | 1.25" half dollar | .84 mi NE of Wilmot | No narrative filed · source: COOP Observer |
| 2011-10-13 17:55 | Wind | 50 kt 58 mph | .69 mi S of Sisseton | No narrative filed · source: ASOS |
| 2011-07-26 20:25 | Wind | 61 kt 70 mph | .84 mi NE of Peever | Several trees were downed by seventy mph winds in Peever. |
| 2011-07-26 20:40 | Wind | 70 kt 81 mph | 2.99 mi WSW of Peever | Many trees were downed southwest of Peever. |
| 2011-07-26 20:47 | Wind | 52 kt 60 mph | 0 mi N of Sisseton | Sixty mph winds damaged some signs and downed many tree branches in Sisseton. |
| 2011-07-05 00:00 | Wind | 52 kt 60 mph | 7.09 mi NE of Corona | Sixty mph winds blew a gazebo down along with many large tree branches. |
| 2011-05-30 19:05 | Wind | 52 kt 60 mph | .69 mi S of New Effington | Sixty mph winds blew down a pole barn. |
| 2011-05-30 19:08 | Wind | 61 kt 70 mph | 2.13 mi NNW of Victor | Seventy mph winds downed a large tree. |
| 2011-05-30 19:10 | Wind | 70 kt 81 mph | 3.74 mi NNE of Victor | A large tree uprooted by eighty mph winds fell onto a house. Also, some doors were ripped off a building. |
| 2011-05-08 16:37 | Hail | 1" quarter | 4.57 mi NNW of Sisseton | No narrative filed · source: Public |
| 2011-05-08 23:40 | Hail | 1.5" ping pong | .69 mi N of Ortley | No narrative filed · source: Trained Spotter |
| 2010-09-06 13:05 | Wind | 70 kt 81 mph | 2.43 mi W of Summit | Several large trees along with many large branches were downed by eighty mph winds. A gazebo was also destroyed. |
| 2010-09-06 13:27 | Wind | 52 kt 60 mph | 3.47 mi ENE of Wilmot | Sixty mph winds were estimated east of Wilmot. |
| 2010-08-30 17:55 | Wind | 52 kt 60 mph | 2.43 mi W of Summit | Sixty mph winds were estimated west of Summit. |
| 2010-07-17 15:30 | Wind | 66 kt 76 mph | .69 mi S of Sisseton | No narrative filed · source: ASOS |
| 2010-07-10 18:00 | Hail | 1.75" golf ball | .49 mi W of Summit | No narrative filed · source: Trained Spotter |
| 2010-06-08 17:00 | Wind | 52 kt 60 mph | 7.76 mi W of Sisseton | Sixty mph winds cause minor shingle damage to a residence west of Sisseton. |
| 2010-05-22 22:50 | Hail | 1.5" ping pong | 1.18 mi NW of Dahlberg | No narrative filed · source: Law Enforcement |
Worst storm days in Roberts County
| Date | Reports that day | Largest hail | Peak gust |
|---|---|---|---|
| 2017-06-13 | 11 | — | 90 mph |
| 2020-07-17 | 8 | — | 75 mph |
| 2024-07-31 | 6 | 1.25" (half dollar) | 70 mph |
| 2022-05-12 | 6 | — | 84 mph |
| 2025-07-28 | 5 | 1" (quarter) | 77 mph |
| 2022-07-20 | 5 | 1" (quarter) | 66 mph |
| 2015-07-17 | 4 | 2.5" (tennis ball) | — |
| 2012-06-17 | 4 | 1.5" (ping pong ball) | 90 mph |
| 2025-07-15 | 4 | 1" (quarter) | 64 mph |
| 2018-07-10 | 3 | 1" (quarter) | — |
Reports by year
Report counts are driven partly by how many people were around to report a storm, so recent years tend to look busier than the early 2010s. Treat the trend as a reporting trend, not purely a weather trend.
Notable large-hail events (2" and up)
| Date | Size | Near | What was reported |
|---|---|---|---|
| 2015-07-17 | 2.5" tennis ball | 2.76 mi N of Sisseton | No narrative filed |
When does hail hit Roberts County?
Across 17 years of records, July produced the most reports (62), followed by the months either side of it. Monthly totals:
| Month | Reports | Share |
|---|---|---|
| January | 0 | 0.0% |
| February | 0 | 0.0% |
| March | 0 | 0.0% |
| April | 1 | 0.7% |
| May | 21 | 14.7% |
| June | 32 | 22.4% |
| July | 62 | 43.4% |
| August | 17 | 11.9% |
| September | 8 | 5.6% |
| October | 2 | 1.4% |
| November | 0 | 0.0% |
| December | 0 | 0.0% |
Nearby counties in South Dakota
Pennington County (1,392)Meade County (831)Custer County (565)Harding County (461)Jackson County (429)Perkins County (405)Brown County (400)Oglala Lakota County (399)Butte County (394)Lawrence County (390)Fall River County (384)Minnehaha County (351)
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About these numbers
Every row above is a report filed with the National Weather Service and archived in the NOAA NCEI Storm Events Database (FIPS 46109). Reports are eyewitness, trained-spotter and damage-survey observations, so they cluster near roads and towns and miss storms over empty country. Hail sizes are estimates. Damage figures are preliminary as filed and are never revised in this archive. Use this page for background, not for an insurance claim, a legal filing, or a roof assessment — for those, get the official record from NOAA directly.