Sioux County, IA hail & severe wind history
196 storm reports on file for Sioux County between 2010-04-24 and 2026-06-30 — 100 hail and 96 severe thunderstorm wind. That averages 11.5 reports a year, and Jul is the busiest month.
Hail reports
100
5.9 per year
Largest hail
2.5"
tennis ball size · 2022-08-18
Strongest gust
100 mph
87 kt · 2010-07-21
Reported damage
$2.0M
property + crop, as filed
Storm days
84
distinct days with a report
Busiest year
2025
28 reports
Search every Sioux 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).
196 of 196 reports match.
Reports by month for the current filter — the shape of Sioux County’s storm season.
| Date | Type | Size / gust | Nearest location | Report detail |
|---|---|---|---|---|
| 2026-06-30 00:53 | Wind | 61 kt 70 mph | 3.15 mi NNE of Granville | Tree and outbuilding damage occurred to a couple of farmsteads. |
| 2026-06-29 20:45 | Wind | 65 kt 75 mph | .5 mi E of Sioux Center | Several large tree branches were blown down across town which ranged from 5 inches in diameter to as large as 13 inches in diameter. |
| 2026-06-28 04:24 | Hail | 0.75" penny | 0 mi N of Rock Vly | No narrative filed · source: Public |
| 2026-06-28 04:28 | Hail | 1.5" ping pong | 1.47 mi NNW of Hull | Crops were shredded by wind-driven hail up to ping pong ball size in an approximately one mile by three mile corridor. |
| 2026-06-28 04:35 | Hail | 1" quarter | 1.66 mi ENE of Hull | No narrative filed · source: Public |
| 2026-06-17 16:25 | Wind | 56 kt 64 mph | 0 mi N of Rock Vly | Thunderstorm winds downed tree limbs up to 5 1/2 inches in diameter. |
| 2026-05-18 16:00 | Hail | 1" quarter | 1.23 mi SW of Chatsworth | No narrative filed · source: Trained Spotter |
| 2026-05-17 16:51 | Hail | 0.75" penny | 0 mi N of Rock Vly | No narrative filed · source: Public |
| 2025-09-21 18:35 | Hail | 1.75" golf ball | 2.02 mi W of Lebanon | No narrative filed · source: Public |
| 2025-09-21 19:58 | Hail | 0.75" penny | 4.15 mi S of Maurice | No narrative filed · source: Emergency Manager |
| 2025-07-28 20:10 | Wind | 74 kt 85 mph | .51 mi W of Hawarden | Trees were knocked down by thunderstorm wind gusts. |
| 2025-07-28 20:14 | Wind | 83 kt 96 mph | 4.2 mi NW of Lebanon | Two barns were destroyed by thunderstorm wind gusts. Numerous power poles were down along with trees uprooted. |
| 2025-07-28 20:22 | Wind | 70 kt 81 mph | 1.71 mi SE of Lebanon | Thunderstorm wind gusts knocked down a tree with a roughly 5 foot diameter. The tree appeared at least partially rotted from photos. |
| 2025-07-28 20:25 | Wind | 74 kt 85 mph | 0 mi N of Rock Vly | Thunderstorm winds ripped a live 2 to 3 foot diameter tree limb down. |
| 2025-07-28 20:26 | Wind | 83 kt 96 mph | .5 mi E of Sioux Center | Numerous trees were knocked down by thunderstorm wind gusts. |
| 2025-07-28 20:30 | Wind | 56 kt 64 mph | .86 mi NW of Hawarden Muni Arpt | Thunderstorm wind gusts were measured by a personal weather station. |
| 2025-07-28 20:30 | Wind | 53 kt 61 mph | .86 mi NE of Maurice | A 61 mph thunderstorm wind gust was measured at Sioux County Regional Airport (KSXK). |
| 2025-07-28 20:32 | Wind | 70 kt 81 mph | 1.66 mi ENE of Hull | Large limbs were torn from trees by thunderstorm wind gusts. |
| 2025-07-28 20:34 | Wind | 74 kt 85 mph | 1.47 mi SSW of Orange City | Numerous trees were knocked down by thunderstorm wind gusts. |
| 2025-07-28 20:36 | Wind | 86 kt 99 mph | 2.45 mi SW of Sioux Center | An extended period of damaging thunderstorm wind gusts were measured by a personal weather station, with a peak of 99 mph measured at 2039 CST. |
| 2025-07-28 20:36 | Wind | 80 kt 92 mph | 1.52 mi W of Orange City | An extended period of damaging thunderstorm wind gusts were measured by a personal weather station, with a peak of 92 mph at 2036 CST. |
| 2025-07-28 20:40 | Wind | 78 kt 90 mph | .86 mi NW of Alton | Significant building damage occurred at the lumber yard in Alton. |
| 2025-07-28 20:41 | Wind | 78 kt 90 mph | .86 mi NW of Alton | On the east side of town, an enclosed trailer was flipped on its side by thunderstorm wind gusts. |
| 2025-07-27 23:22 | Wind | 51 kt 59 mph | 2.13 mi SSE of Sioux Center | Thunderstorm wind gusts were measured by a personal weather station. |
| 2025-07-27 23:40 | Wind | 52 kt 60 mph | 2.13 mi SSE of Sioux Center | Thunderstorm wind gusts were measured by a personal weather station. |
| 2025-07-27 23:47 | Wind | 50 kt 58 mph | 1.71 mi NE of Maurice | A 58 mph wind gust was recorded at the Sioux County Regional Airport. |
| 2025-06-29 02:48 | Wind | 56 kt 64 mph | .86 mi NE of Maurice | Thunderstorm winds measured at Sioux County Airport. |
| 2025-06-29 02:50 | Wind | 55 kt 63 mph | 2.13 mi SSE of Sioux Center | Winds were measured by a personal weather station. |
| 2025-06-29 03:04 | Wind | 61 kt 70 mph | 1.51 mi W of Hospers | Numerous large tree limbs were downed by thunderstorm wind gusts. Several large empty water tanks were blown into the cemetery. |
| 2025-06-14 18:20 | Hail | 1" quarter | .51 mi W of Hawarden | Hail was accompanied by heavy rain and strong winds. |
| 2025-06-02 15:12 | Hail | 1.5" ping pong | 3.03 mi E of Lebanon | Occasional hail up to half dollar to ping pong size fell for several minutes. |
| 2025-06-02 15:15 | Hail | 0.75" penny | 3.11 mi ESE of Lebanon | No narrative filed · source: Public |
| 2025-06-02 15:16 | Hail | 1" quarter | 3.03 mi E of Lebanon | No narrative filed · source: Public |
| 2025-06-02 16:35 | Hail | 0.88" nickel | 3.42 mi NE of Hull | A long period of dime to nickel size hail occurred, along with very heavy rainfall. |
| 2025-06-02 17:39 | Wind | 74 kt 85 mph | 2.31 mi NNW of Hospers | Wind destroyed a hog barn with debris blown across State Highway 60. |
| 2025-06-02 19:06 | Hail | 1.75" golf ball | 2.05 mi SE of Lebanon | No narrative filed · source: Public |
| 2024-07-30 04:50 | Hail | 0.75" penny | .86 mi SE of Sioux Center | No narrative filed · source: Public |
| 2024-07-14 04:25 | Wind | 56 kt 64 mph | 0 mi N of Rock Vly | A few large branches were downed by thunderstorm wind gusts. |
| 2024-07-14 04:48 | Wind | 70 kt 81 mph | .86 mi NE of Hull | Thunderstorm wind gusts downed several large trees across the highway west of Hull. |
| 2024-06-17 01:25 | Wind | 52 kt 60 mph | 1.47 mi NNW of Orange City Arpt | Thunderstorm wind gusts up to 60 mph were measured by the Iowa Road Weather Information System site RTNI4 near Orange City. |
| 2024-06-02 23:40 | Hail | 1.25" half dollar | .51 mi W of Hawarden | No narrative filed · source: Social Media |
| 2024-06-02 23:40 | Wind | 55 kt 63 mph | .86 mi NW of Hawarden Muni Arpt | Thunderstorm wind gust was measured at personal weather station KIAHAWAR11. |
| 2024-05-30 14:30 | Wind | 53 kt 61 mph | .86 mi NE of Maurice | Thunderstorm wind gust of 61 mph was measured by the Automated Weather Observing System site KSXK near Maurice. |
| 2024-04-16 13:59 | Wind | 61 kt 70 mph | 4.09 mi W of Matlock | Thunderstorms winds removed the roofs from a couple buildings. |
| 2023-08-05 13:30 | Wind | 70 kt 81 mph | 2.74 mi NW of Maurice | A very old barn collapsed under the weight of a more modern roof. The structure fell to the southeast, most likely in relation to rear flank downdraft wind on the backside of tornado producing mesocyclone. Property damage costs are a rough estimate. |
| 2023-07-12 03:45 | Wind | 65 kt 75 mph | 1.01 mi W of Hawarden | Several large trees were downed by thunderstorm winds in Hawarden. |
| 2023-07-12 03:47 | Wind | 61 kt 70 mph | 0 mi N of Rock Vly | Large branches and powerlines were downed by thunderstorm winds, which lasted up to 5 minutes. |
| 2023-07-12 03:58 | Wind | 61 kt 70 mph | 1.66 mi ENE of Hull | Thunderstorm winds brought down large tree branches and powerlines across Division Street between 3rd and 5th Street. |
| 2023-07-10 15:42 | Wind | 61 kt 70 mph | .69 mi N of Rock Vly | Multiple three to four inch diameter tree limbs were downed by thunderstorm wind gusts. |
| 2023-07-10 15:48 | Hail | 1.5" ping pong | 1.66 mi ENE of Hull | Large hail was accompanied by winds up to 50 mph. |
| 2023-07-10 16:11 | Hail | 1" quarter | 1.01 mi W of Matlock | Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture. |
| 2023-07-03 15:56 | Hail | 0.88" nickel | .51 mi W of Hawarden | Hail was mainly pea-sized, with several stones as large as nickels. |
| 2023-07-03 16:07 | Hail | 1" quarter | .51 mi W of Hawarden | Hail up to quarter size fell in the southwest portions of Hawarden. |
| 2023-06-24 03:30 | Wind | 65 kt 75 mph | .51 mi W of Hawarden | Thunderstorm wind gusts downed several trees and blew shingles off of a roof. |
| 2023-06-24 03:52 | Wind | 61 kt 70 mph | 0 mi N of Rock Vly | Multiple large tree limbs were broken off by thunderstorm wind gusts. |
| 2023-06-24 03:54 | Wind | 56 kt 64 mph | .86 mi NE of Rock Vly | Thunderstorm wind gusts downed several tree branches up to 3 inches in diameter. |
| 2023-06-24 03:56 | Wind | 56 kt 64 mph | 2.13 mi ENE of Hull | Several large tree branches were broken off by thunderstorm winds. |
| 2023-05-31 14:49 | Hail | 0.88" nickel | 1.71 mi NW of Hospers | Dime to nickel size hail was observed near Hospers. |
| 2023-05-12 19:31 | Wind | 52 kt 60 mph | 1.23 mi SW of Chatsworth | Thunderstorm winds downed numerous 1 to 2 inch diameter tree branches, as well as one limb up to 4 inches in diameter. |
| 2023-04-19 20:11 | Hail | 1" quarter | .5 mi E of Rock Vly | Hail 1.0 inch in diameter fell in Rock Valley. |
| 2022-10-23 18:25 | Wind | 52 kt 60 mph | .5 mi E of Rock Vly | Numerous one to three-inch tree limbs were broken off by thunderstorm wind gusts. |
| 2022-10-23 18:40 | Wind | 52 kt 60 mph | 2.13 mi ENE of Hull | Winds gusts were measured by a personal weather station. |
| 2022-08-18 16:42 | Hail | 1.75" golf ball | .5 mi E of Lebanon | No narrative filed · source: Public |
| 2022-08-18 16:44 | Hail | 2.5" tennis ball | .5 mi E of Lebanon | Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture. |
| 2022-08-18 17:40 | Hail | 1" quarter | 3.45 mi S of Maurice | No narrative filed · source: Social Media |
| 2022-07-22 01:29 | Hail | 0.75" penny | 1.38 mi S of Orange City | No narrative filed · source: Public |
| 2022-07-22 01:30 | Wind | 56 kt 64 mph | 1.47 mi SSW of Orange City | Multiple tree branches from 4 to 6 inches in diameter were downed by thunderstorm winds on the Northwestern College campus. |
| 2022-05-12 15:54 | Wind | 70 kt 81 mph | .08 mi WNW of Hawarden | The roof to the bus barn at West Sioux High School was removed by thunderstorm winds. |
| 2022-05-12 16:05 | Wind | 78 kt 90 mph | 2.57 mi SW of Rock Vly | The entire roof and all walls were blown off a hog barn, with debris scattered for at least three-quarters of a mile downstream. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture. |
| 2021-09-17 00:07 | Wind | 55 kt 63 mph | 1.71 mi NE of Maurice | Automated weather station KSXK measured thunderstorm wind gusts. |
| 2021-09-17 00:15 | Wind | 52 kt 60 mph | .69 mi S of Orange City | A large tree branch was downed by strong thunderstorm wind gusts. |
| 2021-09-17 00:33 | Wind | 70 kt 81 mph | 2.02 mi E of Hull | A large construction shed was lifted and thrown into a nearby corn field. Property damage costs are a rough estimate. |
| 2021-09-17 00:33 | Wind | 61 kt 70 mph | 1.01 mi W of Boyden | Several power lines were downed by thunderstorm wind gusts. |
| 2021-09-17 00:34 | Wind | 61 kt 70 mph | .69 mi N of Boyden | Large tree branches were downed by thunderstorm wind gusts. |
| 2021-09-17 00:34 | Wind | 61 kt 70 mph | .5 mi NNW of Boyden | The doors of a school bus garage building were blown in by thunderstorm winds, which resulted in failure of the most of the roof and an exterior wall. Property damage costs are a rough estimate. |
| 2021-09-16 23:50 | Wind | 55 kt 63 mph | .86 mi NW of Hawarden Muni Arpt | Iowa RWIS station FW6302 in Hawarden measured thunderstorm wind gusts. |
| 2021-08-30 18:06 | Hail | 1" quarter | 1.01 mi W of Hawarden | Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture. |
| 2021-08-27 00:05 | Hail | 1" quarter | 2.13 mi SSE of Rock Vly | Hail resulted in the death of several birds, stripped corn, and holes in the siding of a house. Property damage costs are a rough estimate. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture. |
| 2021-07-09 00:22 | Hail | 1" quarter | 4.15 mi N of Hawarden | No narrative filed · source: Social Media |
| 2021-07-09 01:17 | Hail | 1" quarter | 4.27 mi NNE of Hawarden | Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture. |
| 2020-10-11 17:14 | Wind | 50 kt 58 mph | 0 mi N of Rock Vly | Wind gust was measured by a personal weather station. |
| 2020-10-11 17:20 | Wind | 52 kt 60 mph | 4.27 mi NNE of Hawarden | Several three inch branches were broken off trees. Property damage costs are rough estimates. |
| 2020-06-21 14:25 | Wind | 50 kt 58 mph | .86 mi NW of Hawarden Muni Arpt | Wind gust to 58 mph was measured by a personal weather station. |
| 2020-06-21 14:48 | Wind | 56 kt 64 mph | 0 mi N of Rock Vly | Six to nine inch diameter tree limbs taken down with power outages in Rock Valley. Property damage costs are rough estimates. |
| 2020-06-21 14:59 | Wind | 61 kt 70 mph | 1.66 mi ESE of Hull | Several trees were taken down by the strong winds. Property damage costs are rough estimates. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture. |
| 2020-06-04 21:52 | Hail | 0.75" penny | 1.66 mi WNW of Newkirk | No narrative filed · source: Public |
| 2019-07-20 08:06 | Wind | 56 kt 64 mph | .69 mi N of Rock Vly | Tree limbs snapped up to four inches diameter. |
| 2019-07-20 08:15 | Wind | 61 kt 70 mph | 1.38 mi S of Orange City | Large trees down throughout Orange City. |
| 2019-07-17 06:05 | Wind | 70 kt 81 mph | 3.67 mi NW of Lebanon | Three power poles blown over and power lines down. |
| 2019-07-17 06:06 | Wind | 65 kt 75 mph | 2.31 mi NNW of Lebanon | Ten mature trees blown down. Several more have tops snapped off. Machine shed doors blown in and back wall blown out, with debris spread into the field. |
| 2019-07-17 06:10 | Wind | 61 kt 70 mph | .69 mi S of Carmel | Large trees blown down. |
| 2019-07-17 06:15 | Wind | 61 kt 70 mph | 0 mi N of Sioux Center | Semi-truck blown over just west of Sioux Center. |
| 2019-07-12 13:46 | Hail | 1" quarter | 1.38 mi S of Maurice | Hail was mostly pea size, but a few stones as large as quarters. |
| 2019-07-12 13:58 | Hail | 0.75" penny | 3.54 mi W of Carnes | No narrative filed · source: Public |
| 2019-07-12 14:20 | Hail | 1" quarter | 1.22 mi NW of Hawarden | Mostly pea size hail with a few to quarter size. |
| 2019-07-04 01:45 | Wind | 70 kt 81 mph | .5 mi W of Rock Vly | Downburst winds removed the roof and most walls from a home at the corner of 8th Avenue and 12th Street. Debris from this home damaged a downstream home toward the east. A utility pole and several trees were snapped off, which started a small fire. |Several other homes had some lesser collateral roof or siding damage… |
| 2019-06-27 07:55 | Wind | 52 kt 60 mph | 4.27 mi NNE of Hawarden | Large tree branch down. |
| 2018-08-28 03:36 | Hail | 1" quarter | 0 mi N of Rock Vly | No narrative filed · source: Trained Spotter |
| 2018-08-28 03:37 | Hail | 0.88" nickel | .5 mi E of Rock Vly | Hail was pea to nickel size. |
| 2018-08-28 04:15 | Hail | 1.5" ping pong | 1.67 mi WNW of Granville | Lots of crop damage from half dollar to silver dollar size hail. |
| 2018-08-27 14:33 | Hail | 1" quarter | 1.47 mi SSW of Alton | No narrative filed · source: Trained Spotter |
| 2018-08-27 14:39 | Hail | 1.25" half dollar | 1.67 mi ENE of Alton | No narrative filed · source: Trained Spotter |
| 2018-08-27 14:39 | Hail | 1.75" golf ball | 1.22 mi NW of Granville | Hail lasted for five minutes. |
| 2018-08-27 14:48 | Hail | 0.75" penny | 1.52 mi E of Granville | No narrative filed · source: Trained Spotter |
| 2018-08-05 01:40 | Hail | 1.25" half dollar | .85 mi SE of Fairview | No narrative filed · source: Public |
| 2018-08-05 01:44 | Wind | 56 kt 64 mph | .86 mi NE of Rock Vly | Social media report of a large tree down in the city of Rock Rapids. Time estimated from radar. |
| 2018-08-05 01:45 | Wind | 56 kt 64 mph | .51 mi W of Hawarden | Trees and power lines down all across town. |
| 2018-08-05 01:46 | Wind | 56 kt 64 mph | 3.6 mi W of Carmel | Social media reports of a large tree split by high winds. Time estimated from radar. |
| 2018-08-05 01:56 | Wind | 56 kt 64 mph | .5 mi E of Sioux Center | Scattered trees and power lines down across the entire town. |
| 2018-05-29 14:32 | Wind | 52 kt 60 mph | .86 mi SW of Orange City | Branches from 6 to 7 inches in diameter were ripped off trees near downtown. |
| 2018-05-01 18:19 | Hail | 1" quarter | 3.03 mi W of Sioux Center | Social media report. Time based on radar. |
| 2018-05-01 18:20 | Hail | 0.88" nickel | 2.81 mi S of Carmel | No narrative filed · source: Trained Spotter |
| 2018-05-01 18:48 | Hail | 0.88" nickel | .5 mi W of Middleburg | No narrative filed · source: Trained Spotter |
| 2017-07-22 02:34 | Hail | 1" quarter | .51 mi W of Hawarden | No narrative filed · source: Trained Spotter |
| 2017-06-29 16:08 | Hail | 1.25" half dollar | .69 mi N of Ireton | Hail covering the ground. |
| 2017-06-29 16:24 | Hail | 1" quarter | .5 mi E of Sioux Center | No narrative filed · source: Public |
| 2017-06-29 16:30 | Hail | 1" quarter | .5 mi E of Sioux Center | No narrative filed · source: Trained Spotter |
| 2017-06-29 16:50 | Hail | 1" quarter | 0 mi N of Boyden | No narrative filed · source: Public |
| 2017-06-03 17:20 | Wind | 52 kt 60 mph | 2.53 mi E of Granville | Dime size hail along with the wind. Severe tree branches downed throughout the town. Also reported 2.25 inches of rain in a 20 to 30 minute period. |
| 2016-09-05 00:32 | Wind | 52 kt 60 mph | 4.59 mi SE of Lebanon | Thunderstorm winds caused tree damage, including a 4 inch diameter limb blown down. |
| 2016-08-16 20:00 | Hail | 1.25" half dollar | 2.94 mi NNE of Orange City | Large hail was accompanied by heavy rain. |
| 2016-08-11 02:26 | Wind | 61 kt 70 mph | 2.13 mi ENE of Hull | Thunderstorm winds caused tree damage, including several trees blown down. Some of the fallen trees blocked a road. |
| 2016-07-13 05:50 | Hail | 0.88" nickel | 1.22 mi SW of Matlock | No narrative filed · source: Trained Spotter |
| 2016-07-13 07:00 | Hail | 1" quarter | .5 mi E of Sioux Center | No narrative filed · source: Trained Spotter |
| 2016-06-17 19:40 | Wind | 52 kt 60 mph | 0 mi N of Rock Vly | Thunderstorm winds caused tree damage, including several branches blown down. Tree debris damaged power lines and caused a power outage. |
| 2016-06-17 19:55 | Wind | 61 kt 70 mph | .51 mi W of Hawarden | Thunderstorm winds blew down numerous trees. |
| 2016-06-10 22:50 | Hail | 1" quarter | 1.52 mi E of Granville | No narrative filed · source: Trained Spotter |
| 2016-05-23 16:42 | Hail | 1" quarter | 2.57 mi NW of Sheldon | No narrative filed · source: Trained Spotter |
| 2015-05-10 14:31 | Hail | 0.88" nickel | 2.87 mi WNW of Fairview | No narrative filed · source: Public |
| 2014-09-19 20:06 | Hail | 1" quarter | .69 mi N of Boyden | No narrative filed · source: Fire Department/Rescue |
| 2014-09-19 20:15 | Hail | 1.5" ping pong | .69 mi N of Boyden | No narrative filed · source: Trained Spotter |
| 2014-09-19 20:22 | Hail | 1" quarter | 2.57 mi NW of Sheldon | No narrative filed · source: Trained Spotter |
| 2014-09-19 20:55 | Hail | 1" quarter | 3.6 mi NNW of Lebanon | No narrative filed · source: Trained Spotter |
| 2014-06-30 00:38 | Hail | 0.75" penny | 1.23 mi SW of Chatsworth | No narrative filed · source: Trained Spotter |
| 2014-06-26 14:57 | Hail | 0.75" penny | 2.07 mi N of Newkirk | No narrative filed · source: Public |
| 2014-06-26 15:10 | Hail | 1" quarter | .69 mi N of Boyden | No narrative filed · source: Trained Spotter |
| 2014-06-26 16:39 | Wind | 52 kt 60 mph | 2.07 mi S of Boyden | Thunderstorm winds caused tree damage, including branches blown down. |
| 2014-06-26 17:04 | Hail | 1" quarter | 3.15 mi NNW of Newkirk | No narrative filed · source: Public |
| 2014-06-16 12:30 | Wind | 52 kt 60 mph | 0 mi N of Rock Vly | Thunderstorm winds caused tree damage, including up to 8 inch diameter branches blown down. The winds were accompanied by large hail. |
| 2014-06-16 12:30 | Hail | 1.25" half dollar | 0 mi N of Rock Vly | Large hail was accompanied by damaging thunderstorm winds. |
| 2014-06-16 12:35 | Hail | 1" quarter | .51 mi E of Alton | No narrative filed · source: CoCoRaHS |
| 2014-06-05 12:49 | Hail | 0.88" nickel | .51 mi W of Chatsworth | No narrative filed · source: Trained Spotter |
| 2014-06-05 15:45 | Hail | 1" quarter | 3.32 mi ENE of Fairview | No narrative filed · source: Public |
| 2014-06-01 14:48 | Wind | 61 kt 70 mph | 1.71 mi SE of Sioux Center | Thunderstorm winds caused tree damage, and were accompanied by heavy rain. |
| 2014-05-11 18:58 | Hail | 1" quarter | .51 mi W of Hawarden | Large hail was accompanied by damaging winds. |
| 2014-05-11 18:58 | Wind | 52 kt 60 mph | .51 mi W of Hawarden | Thunderstorm winds caused tree damage. The winds were accompanied by large hail. |
| 2014-05-11 19:23 | Hail | 1.75" golf ball | .5 mi E of Sioux Center | No narrative filed · source: Public |
| 2013-08-31 23:15 | Wind | 52 kt 60 mph | 2.05 mi SE of Alton | Thunderstorm winds caused an unknown amount of tree damage. |
| 2012-08-08 10:07 | Hail | 0.75" penny | .86 mi NW of Alton | No narrative filed · source: Trained Spotter |
| 2012-07-25 16:15 | Hail | 1" quarter | 2.14 mi ENE of Orange City | No narrative filed · source: Trained Spotter |
| 2012-07-25 16:15 | Hail | 1.25" half dollar | 3.15 mi NNE of Alton | No narrative filed · source: Trained Spotter |
| 2012-07-25 16:18 | Hail | 1.75" golf ball | 2.31 mi NNE of Alton | Large hail caused an unknown amount of damage to vehicles and crops. |
| 2012-07-25 16:20 | Hail | 1.75" golf ball | 1.38 mi N of Granville | Large hail caused an unknown amount of damage to vehicles and crops. |
| 2012-07-25 16:20 | Hail | 1.5" ping pong | 2.57 mi NW of Granville | No narrative filed · source: Public |
| 2012-07-25 16:22 | Hail | 1" quarter | 2.05 mi NW of Granville | No narrative filed · source: Public |
| 2012-07-25 16:25 | Hail | 2" hen egg | 2.45 mi NE of Granville | Large hail caused an unknown amount of damage to vehicles and crops. |
| 2012-07-25 16:25 | Hail | 2" hen egg | 2.02 mi E of Granville | Large hail caused an unknown amount of damage to vehicles and crops. |
| 2012-07-25 16:34 | Hail | 1.75" golf ball | 2.81 mi S of Hospers | Large hail caused an unknown amount of damage to vehicles and crops. |
| 2012-05-27 16:41 | Hail | 1" quarter | .51 mi W of Chatsworth | No narrative filed · source: Trained Spotter |
| 2012-05-27 16:43 | Hail | 1" quarter | .69 mi S of Hawarden Muni Arpt | No narrative filed · source: Trained Spotter |
| 2012-05-27 16:50 | Hail | 0.75" penny | 4 mi NNE of Hull | No narrative filed · source: Trained Spotter |
| 2012-05-27 18:28 | Wind | 56 kt 64 mph | .51 mi W of Hawarden | Thunderstorm winds caused tree damage, including several trees blown down. |
| 2012-05-27 18:52 | Wind | 61 kt 70 mph | 1.66 mi ENE of Hull | Thunderstorm winds caused tree damage, including numerous branches blown down. |
| 2012-05-27 19:00 | Wind | 52 kt 60 mph | .86 mi NW of Boyden | Thunderstorm winds caused tree damage. |
| 2012-05-06 01:15 | Wind | 56 kt 64 mph | 1.38 mi N of Ireton | Thunderstorm winds damaged a farm shed, and caused tree damage, including several branches blown down. |
| 2012-05-04 14:06 | Hail | 1.25" half dollar | .51 mi W of Hawarden | Large hail was accompanied by estimated 45 mph wind gusts. |
| 2012-05-04 14:12 | Wind | 61 kt 70 mph | 3.74 mi SW of Sioux Center | Thunderstorm winds damaged a roof, and caused tree damage, including some trees uprooted. |
| 2012-05-04 14:20 | Wind | 53 kt 61 mph | 1.47 mi NNW of Orange City Arpt | No narrative filed · source: Department of Highways |
| 2012-05-04 14:23 | Wind | 69 kt 79 mph | .86 mi NE of Orange City Arpt | Thunderstorm winds caused an unknown amount of tree and power line damage. |
| 2012-05-04 14:46 | Wind | 61 kt 70 mph | 1.01 mi W of Hospers | Thunderstorm winds caused tree damage, including branches blown down. The winds were accompanied by small hail. |
| 2012-05-04 20:36 | Hail | 1.25" half dollar | 0 mi N of Rock Vly | No narrative filed · source: Trained Spotter |
| 2012-05-04 20:43 | Hail | 0.75" penny | 1.47 mi SSW of Perkins | No narrative filed · source: Trained Spotter |
| 2012-05-04 20:45 | Hail | 1" quarter | 2.44 mi NW of Perkins | No narrative filed · source: Public |
| 2012-05-01 18:22 | Hail | 1.5" ping pong | 1.47 mi NNW of Fairview | No narrative filed · source: Trained Spotter |
| 2012-05-01 20:00 | Wind | 76 kt 87 mph | .86 mi NW of Alton | Thunderstorm winds damaged trees and power lines, and blew down a grain bin and cattle shed. The peak gust was measured by Iowa RWIS equipment. |
| 2011-08-22 23:10 | Hail | 1.5" ping pong | 4.89 mi NE of Hull | Large hail caused an unknown amount of damage to corn and soybean crops. |
| 2011-08-22 23:30 | Hail | 1.5" ping pong | .69 mi N of Boyden | Large hail caused an unknown amount of damage to corn and soybean crops. |
| 2011-05-21 19:43 | Wind | 56 kt 64 mph | .86 mi NW of Alton | Thunderstorm winds uprooted a large tree. |
| 2011-05-11 16:55 | Hail | 1" quarter | 3.42 mi NE of Hawarden | No narrative filed · source: Trained Spotter |
| 2011-05-11 16:55 | Hail | 1" quarter | 4.84 mi S of Lebanon | No narrative filed · source: Public |
| 2011-05-11 17:11 | Wind | 52 kt 60 mph | 2.13 mi NNW of Hawarden | A gustnado was observed by emergency management. |
| 2010-09-22 11:37 | Hail | 1" quarter | 4.09 mi W of Lebanon | No narrative filed · source: Trained Spotter |
| 2010-09-22 12:00 | Hail | 1" quarter | 3.74 mi SW of Rock Vly | No narrative filed · source: Trained Spotter |
| 2010-09-22 14:14 | Hail | 1" quarter | 0 mi N of Rock Vly | No narrative filed · source: Broadcast Media |
| 2010-09-22 15:53 | Wind | 61 kt 70 mph | .86 mi NW of Boyden | Thunderstorm winds caused tree damage, including a healthy 2 foot diameter tree broken off about 5 feet above the ground. |
| 2010-07-21 23:30 | Wind | 87 kt 100 mph | 0 mi N of Maurice | Thunderstorm winds destroyed one home and damaged at least 20 others. Homes that were damaged had broken windows, had parts of roofs and siding that were blown away, or had roofs damaged by falling trees. tree damage was widespread, and there were also downed power lines and power outages. One person was injured by br… |
| 2010-07-21 23:38 | Wind | 51 kt 59 mph | 1.47 mi SSW of Orange City | No narrative filed · source: AWOS |
| 2010-06-26 18:55 | Wind | 56 kt 64 mph | 0 mi N of Rock Vly | Thunderstorm winds caused tree damage, including large limbs blown down onto a house. |
| 2010-06-26 20:21 | Hail | 1" quarter | 1.47 mi SSW of Orange City | Large hail was accompanied by extimated 50 mph wind gusts. |
| 2010-06-20 05:47 | Hail | 0.75" penny | 1.01 mi W of Hospers | No narrative filed · source: Trained Spotter |
| 2010-06-11 02:02 | Wind | 61 kt 70 mph | 3.67 mi NW of Ireton | Thunderstorm winds damaged five grain bins. |
| 2010-06-01 11:55 | Hail | 0.75" penny | .69 mi N of Hawarden Muni Arpt | No narrative filed · source: Trained Spotter |
| 2010-05-24 23:18 | Wind | 56 kt 64 mph | 2.13 mi ENE of Boyden | Thunderstorm winds caused tree damage, including a 3 foot diameter tree snapped off 3 feet above the ground, and up to 8 inch diameter limbs broken off. |
| 2010-04-24 17:44 | Hail | 0.75" penny | .86 mi NW of Alton | No narrative filed · source: Trained Spotter |
| 2010-04-24 18:02 | Hail | 1" quarter | 4.18 mi N of Hull | No narrative filed · source: Public |
| 2010-04-24 18:20 | Hail | 1.75" golf ball | 4 mi NNE of Hull | No narrative filed · source: Trained Spotter |
Worst storm days in Sioux County
| Date | Reports that day | Largest hail | Peak gust |
|---|---|---|---|
| 2025-07-28 | 13 | — | 99 mph |
| 2012-07-25 | 9 | 2" (hen egg) | — |
| 2012-05-04 | 8 | 1.25" (half dollar) | 79 mph |
| 2025-06-02 | 6 | 1.75" (golf ball) | 85 mph |
| 2012-05-27 | 6 | 1" (quarter) | 70 mph |
| 2021-09-17 | 6 | — | 81 mph |
| 2018-08-05 | 5 | 1.25" (half dollar) | 64 mph |
| 2018-08-27 | 4 | 1.75" (golf ball) | — |
| 2014-09-19 | 4 | 1.5" (ping pong ball) | — |
| 2017-06-29 | 4 | 1.25" (half dollar) | — |
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 |
|---|---|---|---|
| 2022-08-18 | 2.5" tennis ball | .5 mi E of Lebanon | Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture. |
| 2012-07-25 | 2" hen egg | 2.45 mi NE of Granville | Large hail caused an unknown amount of damage to vehicles and crops. |
| 2012-07-25 | 2" hen egg | 2.02 mi E of Granville | Large hail caused an unknown amount of damage to vehicles and crops. |
When does hail hit Sioux County?
Across 17 years of records, July produced the most reports (55), 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 | 5 | 2.6% |
| May | 38 | 19.4% |
| June | 52 | 26.5% |
| July | 55 | 28.1% |
| August | 24 | 12.2% |
| September | 18 | 9.2% |
| October | 4 | 2.0% |
| November | 0 | 0.0% |
| December | 0 | 0.0% |
Nearby counties in Iowa
Polk County (645)Linn County (550)Scott County (434)Story County (328)Johnson County (295)Woodbury County (290)Dubuque County (272)Dallas County (268)Benton County (265)Warren County (255)Marion County (236)Buchanan County (226)
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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 19167). 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.