Clinton County, IA hail & severe wind history
206 storm reports on file for Clinton County between 2010-04-30 and 2026-06-28 — 71 hail and 135 severe thunderstorm wind. That averages 12.1 reports a year, and May is the busiest month.
Hail reports
71
4.2 per year
Largest hail
2"
hen egg size · 2026-06-28
Strongest gust
130 mph
113 kt · 2020-08-10
Reported damage
$639K
property + crop, as filed
Storm days
82
distinct days with a report
Busiest year
2017
27 reports
Search every Clinton 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).
206 of 206 reports match — the table lists only the 200 most recent; pick a year or month to see older reports. The count and monthly chart cover all 206.
Reports by month for the current filter — the shape of Clinton County’s storm season.
| Date | Type | Size / gust | Nearest location | Report detail |
|---|---|---|---|---|
| 2026-06-28 13:08 | Hail | 2" hen egg | 3.6 mi W of Charlotte | Several 1-2 inch size hailstones were reported. |
| 2026-06-10 11:49 | Wind | 65 kt 75 mph | 2.14 mi NNE of Clinton | Tree branches over a foot in diameter downed. Estimated wind gust of 65 mph recorded by a car anemometer. |
| 2026-04-23 22:55 | Wind | 70 kt 81 mph | 2.17 mi ENE of Toronto | Door blown off a small outbuilding, and a window blown out of a barn. A tree blown down nearby. The time was estimated using radar data. |
| 2026-04-17 17:34 | Wind | 50 kt 58 mph | 0 mi N of Clinton Muni Arpt | Reported at the Clinton Airport. |
| 2026-04-17 17:35 | Wind | 56 kt 64 mph | 2.31 mi SSW of Clinton Muni Arpt | No narrative filed · source: Trained Spotter |
| 2026-04-02 16:18 | Wind | 53 kt 61 mph | 2.92 mi SW of Eden Valley Camp Gd | No narrative filed · source: Mesonet |
| 2026-04-02 16:18 | Wind | 52 kt 60 mph | .51 mi E of Wheatland | Time estimated from radar data. |
| 2026-03-10 18:08 | Hail | 1.25" half dollar | 1.24 mi NW of Clinton | No narrative filed · source: Public |
| 2026-03-10 18:09 | Hail | 1" quarter | 1.72 mi SE of Low Moor | No narrative filed · source: Public |
| 2026-03-10 19:09 | Hail | 1.25" half dollar | .86 mi SE of Charlotte | No narrative filed · source: Public |
| 2025-07-30 03:27 | Wind | 56 kt 64 mph | 2.14 mi NNE of Clinton | A trained spotter reported. 6-7 inch diameter healthy tree branch down on the corner of Pershing BLVD and 11th AVE. The time of the event was estimated using radar. |
| 2025-07-29 02:30 | Wind | 56 kt 64 mph | 0 mi N of Dewitt | A trained spotter reported that many small to medium tree branches down. |
| 2025-07-29 02:45 | Wind | 50 kt 58 mph | 2.14 mi NNE of Clinton | A trained spotter reported a 58 MPH and minor tree damage was also noted nearby. The time of the event was estimated using radar. |
| 2025-07-10 18:48 | Wind | 65 kt 75 mph | 2.95 mi NNE of Clinton | A trained spotter reported that a couple of trees were downed. One tree was 2 to 3 feet in diameter. The time of the event was estimated using radar. |
| 2025-07-10 20:17 | Hail | 1.75" golf ball | 1.69 mi WNW of Clinton | The location and time of the event was estimated using radar. |
| 2025-07-05 15:54 | Wind | 61 kt 70 mph | 0 mi N of Dewitt | A COOP Observer reported that a large tree was down across the road in the subdivision. Delayed Report. The time of the event was estimated using radar. |
| 2025-06-25 15:29 | Wind | 57 kt 66 mph | .86 mi SW of Calamus Eastvold Arp | Personal weather station measured gust with damage nearby suggesting 70 - 80 mph downburst. |
| 2025-06-25 15:31 | Wind | 65 kt 75 mph | 1.38 mi S of Bleidorn | Pictures of a roof panel off a farm structure and the total destruction of detached garage. Estimated 70-80 mph winds. Scattered crop damage in the area. |
| 2025-06-25 15:41 | Wind | 61 kt 70 mph | 1.03 mi E of Grand Mound | Large trees reported down in town. |
| 2025-06-25 15:42 | Wind | 52 kt 60 mph | 2.48 mi SE of Grand Mound | Personal weather station measured a 60 MPH gust. Wires also reported down in Grand Mound. |
| 2025-06-25 16:08 | Wind | 61 kt 70 mph | 1.38 mi N of Clinton | Multiple trees blown down in the city of Clinton blocking roads. |
| 2025-06-25 16:10 | Wind | 61 kt 70 mph | 2.81 mi N of Clinton | A healthy 10 inch diameter tree branch down. |
| 2025-03-19 08:05 | Hail | 1" quarter | 2.14 mi NNE of Clinton | A lot of hail fell. |
| 2025-03-14 20:37 | Wind | 65 kt 75 mph | .86 mi SE of Charlotte | Partial barn roof blown off. The time was estimated from radar information. |
| 2025-03-14 20:47 | Wind | 65 kt 75 mph | 2.14 mi NNE of Clinton | Measured by wind equipement. |
| 2024-10-24 20:20 | Wind | 53 kt 61 mph | 2.14 mi NNE of Clinton | A trained spotter measured a thunderstorm wind gust of 61 MPH. |
| 2024-07-15 18:21 | Wind | 52 kt 60 mph | 1.69 mi WNW of Clinton | A trained spotter reported an estimated 60 MPH thunderstorm wind gust. The time of the event was estimated using radar. |
| 2024-07-02 18:22 | Wind | 50 kt 58 mph | .69 mi N of Clinton | Emergency Manager reported limbs down in town. The time of the event was estimated using radar. |
| 2024-06-25 16:50 | Wind | 52 kt 60 mph | 1.72 mi SE of Almont | Large tree branches downed by thunderstorm winds. Time estimated by radar. |
| 2024-06-25 17:10 | Wind | 61 kt 70 mph | 2.14 mi NNE of Bryant | Tree fell on an LP tank, causing it to leak. Power line was also downed near the tree damage. Time estimated by radar. |
| 2024-06-16 13:15 | Wind | 52 kt 60 mph | 2.07 mi SE of Low Moor | Reports of 6 to 8 inch diameter tree branches downed by the thunderstorm winds. |
| 2024-05-21 17:41 | Hail | 1.5" ping pong | 2.48 mi NW of Delmar | Report from Mping. |
| 2024-05-21 18:13 | Wind | 78 kt 90 mph | 2.58 mi SW of Lost Nation | Significant wind damage to farm buildings, trees, and farm equipment. Time estimated from radar data. |
| 2024-05-21 18:14 | Wind | 70 kt 81 mph | .51 mi E of Wheatland | Trees blown down along Highway 30. |
| 2024-05-21 18:17 | Wind | 85 kt 98 mph | .51 mi E of Lost Nation | Damage to buildings. Time estimated from radar data. |
| 2024-05-21 18:25 | Wind | 65 kt 75 mph | .51 mi E of Delmar | Trees and powerlines blown down in Delmar, Iowa. |
| 2024-05-21 19:11 | Wind | 53 kt 61 mph | 2.05 mi W of Delmar | No narrative filed · source: Trained Spotter |
| 2024-05-19 23:48 | Hail | 1.25" half dollar | .51 mi E of Wheatland | Report from Mping. |
| 2024-05-07 04:03 | Wind | 61 kt 70 mph | 2.31 mi SSW of Grand Mound | Public report of damage to a fabric roofed hoop outbuilding sheet. |
| 2024-05-07 04:03 | Wind | 56 kt 64 mph | 1.03 mi E of Grand Mound | Many tree branches blown down in Grand Mound. The time was estimated from radar. |
| 2024-04-16 17:48 | Wind | 61 kt 70 mph | 1.03 mi E of Low Moor | The Emergency Manager reported that a tree was down blocking US Highway 30 and 30th Street west of the Mill Creek Parkway on the west side of Clinton. The time of the event was estimated using radar. |
| 2024-04-16 17:55 | Wind | 52 kt 60 mph | 1.03 mi W of Low Moor | A trained spotter reported a 50 to 60 MPH thunderstorm wind gust with at least some 5 inch diameter tree limb down. |
| 2023-07-28 19:40 | Wind | 61 kt 70 mph | .51 mi E of Wheatland | Trees and powerlines downed by thunderstorm winds. |
| 2023-07-28 20:00 | Wind | 52 kt 60 mph | 0 mi N of Dewitt | Estimated wind gust of 60 mph with thunderstorm. |
| 2023-07-28 20:00 | Wind | 52 kt 60 mph | 0 mi N of Dewitt | Medium sized tree branches down over the road. |
| 2023-07-28 20:15 | Wind | 61 kt 70 mph | 1.69 mi WNW of Clinton | Trees downed throughout the city. |
| 2023-07-28 20:15 | Wind | 61 kt 70 mph | 2.31 mi SSW of Clinton Muni Arpt | Trees and powerlines downed by thunderstorm winds. |
| 2023-07-28 20:15 | Wind | 61 kt 70 mph | .69 mi N of Clinton | Reported heavy tree damage in downtown Clinton between 7th Street and 10th Street. Several 6 to 8 inch tree limbs down. |
| 2023-05-07 16:52 | Hail | 1.25" half dollar | 1.24 mi SE of Elwood | No narrative filed · source: Public |
| 2023-05-07 17:15 | Wind | 52 kt 60 mph | 0 mi N of Dewitt | Estimated winds around 60 mph from the thunderstorm. |
| 2023-05-07 17:31 | Wind | 57 kt 66 mph | .86 mi SE of Clinton Muni Arpt | The AWOS at Clinton Airport measured a 66 mph wind gust. |
| 2023-04-20 01:43 | Hail | 1" quarter | 0 mi N of Dewitt | An NWS employee reported that hail lasted for 2 minutes. |
| 2023-04-04 09:51 | Hail | 0.88" nickel | 1.47 mi NNW of Bulgers Hollow Cp Gd | No narrative filed · source: Trained Spotter |
| 2022-11-04 09:35 | Hail | 1" quarter | 1.38 mi N of Low Moor | No narrative filed · source: Trained Spotter |
| 2022-11-04 09:38 | Hail | 1" quarter | 3.45 mi S of Bulgers Hollow Cp Gd | A trained spotter reported dime to quarter sized hail. |
| 2022-07-23 03:02 | Wind | 53 kt 61 mph | 1.24 mi NW of Dewitt | Wind gust recorded by a Iowa Department of Transportation RWIS. |
| 2022-07-23 03:21 | Wind | 56 kt 64 mph | 3.09 mi E of Folletts | A law enforcement officer reported a tree was blown down in the Rock Creek Campground. |
| 2022-07-23 03:25 | Wind | 52 kt 60 mph | 1.69 mi WNW of Clinton | A public report of a large tree branch down on a house. Received via social media. |
| 2022-07-23 03:28 | Wind | 52 kt 60 mph | 2.06 mi W of Clinton | A trained spotter reported that a 6 inch diameter fruit tree was snapped off. Time of the event was estimated using radar. |
| 2022-07-23 03:29 | Wind | 54 kt 62 mph | 1.24 mi NW of Clinton | The Emergency Manager reported that a 10 to 12 inch diameter tree branch was down at this location damaging the gutters. Time of the event was estimated using radar. |
| 2022-06-21 18:59 | Wind | 61 kt 70 mph | .69 mi S of Charlotte | Broadcast media relayed a public report of trees blown down and damage to power poles in Charlotte. |
| 2022-06-21 19:25 | Wind | 52 kt 60 mph | 2.07 mi NW of Clinton | A tree was blown down onto a house. |
| 2022-06-15 18:40 | Wind | 50 kt 58 mph | .51 mi E of Dewitt | A large tree branch reported blown down. |
| 2022-03-05 21:02 | Wind | 56 kt 64 mph | 0 mi N of Clinton Muni Arpt | The Clinton Municipal Airport AWOS measured a thunderstorm wind gust of 64 MPH. |
| 2021-08-24 16:14 | Wind | 52 kt 60 mph | .86 mi SE of Clinton Muni Arpt | Clinton Airport wind observation. |
| 2020-08-10 12:10 | Wind | 113 kt 130 mph | 1.14 mi N of Toronto | Widespread straight-line winds that produced extensive damage were reported throughout Clinton County, associated with a derecho. These winds lasted around an hour in total at any one location, even though the initial line of storms moved out quickly. Damaging straight-line winds continued and were associated with the… |
| 2020-07-11 17:41 | Wind | 65 kt 75 mph | 1.03 mi E of Toronto | Several trees were blown down in Toronto, Iowa. |
| 2020-07-11 17:50 | Wind | 65 kt 75 mph | .86 mi NE of Calamus | A large tree was blown down in Calamus, blocking a roadway. |
| 2020-07-11 18:02 | Wind | 70 kt 81 mph | 2.57 mi SSW of Dewitt | A large 3 to 4 foot diameter tree was blown down on 270th Street, southwest of DeWitt. |
| 2020-06-21 16:30 | Wind | 61 kt 70 mph | 2.06 mi E of Wheatland | The Iowa DOT reported that a large tree was down blocking both lanes of Highway 30 east of Wheatland near were the highway crosses the Wapsipinicon River. The time of the event was estimated using radar. |
| 2019-09-10 00:05 | Wind | 61 kt 70 mph | .51 mi E of Delmar | Several trees were snapped in Delmar. |
| 2019-06-30 17:11 | Wind | 56 kt 64 mph | 0 mi N of Clinton | Measured wind speed. |
| 2019-06-30 17:15 | Wind | 78 kt 90 mph | 2.58 mi NW of Wheatland | Roofs were blown off 2 barns with trees also down. |
| 2019-06-30 17:16 | Wind | 70 kt 81 mph | .86 mi SE of Charlotte | Trees blown down along Highway 136, causing it to be closed. |
| 2019-06-30 17:20 | Wind | 74 kt 85 mph | 2.17 mi WSW of Elvira | A photo of a machine shed destroyed with damage also to home and other sheds. A large overhead door was blown out. |
| 2019-05-16 18:29 | Wind | 50 kt 58 mph | 0 mi N of Clinton Muni Arpt | No narrative filed · source: AWOS |
| 2019-05-16 20:15 | Hail | 1" quarter | .69 mi S of Dewitt | No narrative filed · source: Public |
| 2019-05-16 20:22 | Hail | 1" quarter | 1.24 mi NW of Dewitt | No narrative filed · source: Trained Spotter |
| 2019-05-16 20:26 | Hail | 1" quarter | 2.14 mi SSE of Low Moor | No narrative filed · source: Social Media |
| 2019-04-22 17:05 | Wind | 52 kt 60 mph | .51 mi E of Delmar | A trained spotter reported a thunderstorm wind gust of 60 MPH. |
| 2018-08-28 18:04 | Wind | 70 kt 81 mph | .86 mi NE of Wheatland | A 30 to 40 foot section of roof was blown off the high school. A NWS survey estimated straight line winds of 70 to 80 MPH. |
| 2018-08-28 18:37 | Wind | 78 kt 90 mph | .86 mi SE of Elvira | A NWS Storm Survey Team found extensive damage to corn in the area. In Elvira, the roof of a large farm building was removed by the wind. Trees were also snapped in town. The wind speeds were estimated to be in the 80 to 90 MPH range. |
| 2018-08-28 18:42 | Wind | 51 kt 59 mph | 1.24 mi NW of Dewitt | No narrative filed · source: Department of Highways |
| 2018-08-28 18:47 | Wind | 53 kt 61 mph | 0 mi N of Clinton Muni Arpt | No narrative filed · source: AWOS |
| 2018-07-13 17:17 | Wind | 52 kt 60 mph | .69 mi N of Clinton | A trained spotter reported 4 to 8 inch diameter tree limbs were down. |
| 2018-06-09 03:29 | Wind | 55 kt 63 mph | .41 mi S of Clinton Muni Arpt | The wind was measured at the Clinton Municipal Airport. |
| 2018-06-09 03:40 | Wind | 52 kt 60 mph | 2.67 mi WNW of Folletts | A 10 inch diameter tree branch was split. The early morning storm damage time was estimated from radar. |
| 2018-06-09 03:40 | Wind | 65 kt 75 mph | 3.04 mi SSE of Low Moor | A large cottonwood tree around three feet in diameter was snapped off about halfway up, with the top laying on a the roof of a house near the Camanche Marina. The early morning storm damage time was estimated from radar. |
| 2018-05-02 15:50 | Hail | 1" quarter | 2.81 mi N of Goose Lake | A trained spotter reported hail up to 1 inch in diameter combined with winds that destroyed a roof on a dairy barn. |
| 2018-05-02 15:50 | Wind | 52 kt 60 mph | 2.81 mi N of Goose Lake | A trained spotter reported a roof on a dairy barn was destroyed. |This was reported along with hail up to the size of 1 inch in diameter. |
| 2018-05-02 16:54 | Hail | 1" quarter | 1.69 mi WNW of Clinton | A coop observer reported hail up to 1 inch in diameter. |
| 2018-05-02 17:00 | Hail | 0.75" penny | .51 mi W of Clinton | A trained spotter reported hail up to the size of pennies. |
| 2017-08-10 15:32 | Hail | 0.75" penny | 0 mi N of Dewitt | No narrative filed · source: NWS Employee |
| 2017-08-10 15:55 | Hail | 0.88" nickel | 2.59 mi SW of Clinton Muni Arpt | No narrative filed · source: Trained Spotter |
| 2017-08-10 15:58 | Hail | 1" quarter | 1.55 mi E of Folletts | No narrative filed · source: Law Enforcement |
| 2017-08-10 16:00 | Hail | 1.5" ping pong | 2.07 mi S of Low Moor | An off duty NWS employee relayed a public report of 1.5 inch hail. The time of the event was estimated using radar. |
| 2017-08-10 16:05 | Hail | 1.25" half dollar | 1.69 mi WNW of Clinton | No narrative filed · source: COOP Observer |
| 2017-07-12 19:29 | Wind | 61 kt 70 mph | 0 mi N of Dewitt | The Clinton County Roads Department reported a few trees had to be cleared from secondary roads around the DeWitt area. |
| 2017-07-12 19:52 | Wind | 61 kt 70 mph | 1.69 mi WNW of Clinton | The county emergency manager reported a few trees down in the city of Clinton. |
| 2017-05-17 20:03 | Wind | 51 kt 59 mph | 0 mi N of Dewitt | The Iowa Department of Transportation measured this wind gust near DeWitt Iowa. |
| 2017-05-17 20:05 | Wind | 50 kt 58 mph | 1.24 mi SE of Dewitt | The county emergency manager reported a hoop building had half of its soft roof torn off. |
| 2017-05-17 20:45 | Wind | 65 kt 75 mph | 2.14 mi SSE of Low Moor | The county emergency manager reported many trees and branches were blown down in the town of Camanche. At least one large tree fell on a house, causing $50,000 in damage. |
| 2017-05-17 20:49 | Wind | 50 kt 58 mph | .69 mi N of Welton | A trained spotter reported estimated winds of 50 to 60 mph for 5 minutes. |
| 2017-05-17 20:50 | Hail | 0.75" penny | 1.69 mi WNW of Clinton | No narrative filed · source: Amateur Radio |
| 2017-05-17 20:50 | Wind | 52 kt 60 mph | 1.69 mi WNW of Clinton | Local amateur radio relayed a report of winds estimated at 50 to 60 mph. |
| 2017-04-15 17:11 | Hail | 1" quarter | .86 mi NE of Calamus | This report was relayed via broadcast media (KWQC). The time of the event was estimated using radar. |
| 2017-04-15 17:20 | Hail | 1" quarter | 1.03 mi E of Grand Mound | This report was relayed by local broadcast media (KWQC). The time of the event was estimated using radar. |
| 2017-04-15 17:30 | Hail | 1.5" ping pong | 0 mi N of Dewitt | An off duty NWS employee reported 1.50 inch hail. Time of the event was estimated using radar. |
| 2017-04-15 17:33 | Hail | 0.88" nickel | 0 mi N of Dewitt | No narrative filed · source: NWS Employee |
| 2017-04-15 17:35 | Hail | 1" quarter | 0 mi N of Dewitt | No narrative filed · source: NWS Employee |
| 2017-03-06 22:30 | Wind | 50 kt 58 mph | 0 mi N of Dewitt | A tree was uprooted on 5th and 11th causing damage to a house. Time was estimated by radar. |
| 2017-03-06 22:45 | Wind | 50 kt 58 mph | 1.47 mi SSE of Bryant | A carport for horses was torn down with pieces going into a motor home parked next to it. Time was estimated by radar. |
| 2017-03-06 22:47 | Wind | 50 kt 58 mph | 1.69 mi WNW of Clinton | A tree was down on a house. |
| 2017-02-28 15:55 | Hail | 1" quarter | 2.07 mi S of Low Moor | A spotter reported dime to quarter size hail. |
| 2017-02-28 16:11 | Hail | 0.75" penny | 1.38 mi N of Clinton | A spotter reports pea to dime size hail. |
| 2017-02-28 16:13 | Hail | 0.75" penny | 2.59 mi SE of Low Moor | Spotters reported dime size hail falling. |
| 2017-02-28 16:18 | Hail | 1" quarter | 2.31 mi SSE of Low Moor | A mix of pea to quarter size hail reported through the official COOP weather observer. |
| 2017-02-28 17:10 | Hail | 0.88" nickel | 2.31 mi SSE of Low Moor | The COOP observer reports a second round of pea to nickel size hail. |
| 2017-02-23 22:45 | Hail | 0.88" nickel | .51 mi E of Wheatland | A report of nickel size hail was received through social media. The time was estimated from radar data. |
| 2016-08-04 20:30 | Wind | 50 kt 58 mph | 0 mi N of Dewitt | An off duty NWS Employee reported an approximately 8 inch diameter tree that was 25 feet tall was pulled out of the ground near their residence. They estimated winds of 45 to 50 MPH. |
| 2016-07-17 05:13 | Wind | 52 kt 60 mph | 3.17 mi SSE of Calamus | A public drone video showed that two apparent severe thunderstorm down-bursts had damaged corn in a field south of Calamus. |
| 2016-07-17 05:23 | Wind | 52 kt 60 mph | 0 mi N of Dewitt | The De Witt law enforcement reported trees were down in the town. |
| 2016-07-17 05:25 | Wind | 56 kt 64 mph | 0 mi N of Dewitt | The emergency manager reported numerous trees were down on the southeast side of the town of De Witt. A few trees fell on the roofs of houses. |
| 2016-05-11 18:30 | Hail | 0.88" nickel | 3.78 mi NW of Clinton | Hail the size of dimes to nickels was reported to fall in a time estimated between 730 and 745 PM. |
| 2016-05-11 18:42 | Hail | 1.25" half dollar | .86 mi SE of Elvira | Hail size was reported from public with a picture received from social media. |
| 2016-03-31 09:30 | Hail | 0.75" penny | 2.31 mi SSE of Low Moor | No narrative filed · source: Trained Spotter |
| 2016-03-31 09:32 | Hail | 0.75" penny | 1.47 mi NNE of Clinton | No narrative filed · source: Trained Spotter |
| 2016-03-31 09:33 | Hail | 1" quarter | 1.69 mi WNW of Clinton | No narrative filed · source: Trained Spotter |
| 2016-03-31 09:34 | Hail | 1" quarter | 1.69 mi WNW of Clinton | Hail up to the size of quarters covered the ground. The hail lasted about 10 minutes. |
| 2016-03-31 09:35 | Hail | 1" quarter | 2.31 mi SSE of Low Moor | No narrative filed · source: Trained Spotter |
| 2016-03-31 09:35 | Hail | 1" quarter | 2.07 mi S of Low Moor | No narrative filed · source: Public |
| 2015-07-13 15:48 | Hail | 1.75" golf ball | .86 mi NW of Calamus | No narrative filed · source: Trained Spotter |
| 2015-07-13 15:50 | Hail | 2" hen egg | .86 mi NE of Calamus | Hail the size of golf balls fell, along with a few that were a little smaller than a tennis ball. |
| 2015-07-13 15:50 | Hail | 1.5" ping pong | 1.38 mi S of Calamus | No narrative filed · source: Trained Spotter |
| 2015-07-13 15:53 | Hail | 1.75" golf ball | .86 mi NE of Calamus | No narrative filed · source: Law Enforcement |
| 2015-07-13 15:59 | Hail | 1" quarter | 2.31 mi SSW of Grand Mound | No narrative filed · source: Trained Spotter |
| 2015-07-13 16:00 | Hail | 2" hen egg | 2.31 mi SSW of Grand Mound | No narrative filed · source: Trained Spotter |
| 2015-06-20 12:45 | Hail | 1" quarter | 2.17 mi ESE of Toronto | COOP observer reports damaged soybean crops between Toronto and Wheatland due to hail. |
| 2015-06-20 12:52 | Hail | 0.75" penny | 1.38 mi S of Calamus | No narrative filed · source: Trained Spotter |
| 2015-06-20 12:53 | Hail | 1" quarter | .86 mi NE of Calamus | No narrative filed · source: Public |
| 2015-04-09 16:28 | Hail | 1" quarter | 0 mi N of Dewitt | Mostly dime to nickel sized hail fell, but some hail stones were the size of quarters. |
| 2015-04-09 16:34 | Hail | 2" hen egg | 0 mi N of Dewitt | No narrative filed · source: NWS Employee |
| 2015-04-09 16:54 | Hail | 0.88" nickel | 1.47 mi NNE of Clinton | No narrative filed · source: Trained Spotter |
| 2014-08-25 12:54 | Wind | 52 kt 60 mph | 1.69 mi WNW of Clinton | Wind gusts estimated to be 60 mph blew down some tree branches in Clinton, IA. This report was posted on Facebook and relayed by the Clinton County EMA. |
| 2014-08-25 13:04 | Hail | 0.75" penny | 2.07 mi SW of Clinton Muni Arpt | No narrative filed · source: Trained Spotter |
| 2014-07-12 16:17 | Wind | 61 kt 70 mph | 0 mi N of Dewitt | Law Enforcement reported a two trees down in DeWitt along with several branches. |
| 2014-06-30 14:40 | Wind | 50 kt 58 mph | 2.05 mi W of Delmar | Law enforcement observed a semi-truck overturned. |
| 2014-06-29 23:35 | Wind | 65 kt 75 mph | 1.69 mi WNW of Clinton | The emergency manager reported numerous large trees down, some on homes, and power lines also down. The damage occurred mainly in the central portion of the city of Clinton. The winds were estimated at 70 to 80 mph. |
| 2014-06-17 02:42 | Wind | 60 kt 69 mph | 1.38 mi S of Calamus | A trained spotter reported trees down all over town along with shingles blown off roofs. |
| 2014-06-17 02:53 | Wind | 62 kt 71 mph | 1.03 mi W of Dewitt | Measured by RWIS station. |
| 2014-06-17 03:15 | Wind | 50 kt 58 mph | 0 mi N of Clinton Muni Arpt | Winds of 58 mph was measured by AWOS site. |
| 2014-04-13 01:00 | Wind | 61 kt 70 mph | 2.07 mi SW of Clinton Muni Arpt | A trained a potter reported two wood 8X8 foot fence panels and one post were blown over. Time of the event was estimated by radar. |
| 2013-05-30 16:15 | Wind | 61 kt 70 mph | 1.03 mi W of Charlotte | A trained spotter reported no power. |
| 2013-05-30 16:16 | Wind | 56 kt 64 mph | .86 mi SE of Charlotte | A trained spotter measured 65 mph winds. |
| 2013-05-30 16:20 | Wind | 50 kt 58 mph | 2.07 mi SW of Clinton Muni Arpt | A trained spotter reported several tree limbs down along with a 6 inch diameter tree blocking a road. |
| 2013-05-30 16:32 | Wind | 52 kt 60 mph | 3.86 mi ENE of Elvira | Law enforcement reported a 10x15 foot building blown into the roadway in the northwest part of Clinton. |
| 2013-05-19 12:30 | Hail | 0.75" penny | 4.02 mi SSW of Goose Lake | Pea to dime size hail. |
| 2012-08-04 12:12 | Wind | 54 kt 62 mph | 1.03 mi E of Dewitt | Trained spotter reported a 5 inch tree was down. |
| 2012-08-04 12:20 | Wind | 61 kt 70 mph | .51 mi E of Wheatland | Amateur radio reported a thunderstorm wind gust around 70 mph. |
| 2012-08-04 12:35 | Wind | 61 kt 70 mph | 2.95 mi SSW of Clinton Muni Arpt | Amateur radio relayed a report of a fruit tree down from thunderstorm winds. |
| 2012-08-04 13:01 | Wind | 61 kt 70 mph | 2.95 mi NNE of Clinton | A trained spotter reported that an 18 to 24 inch tree was down across north 3rd Street in the City of Clinton. |
| 2012-07-07 16:28 | Wind | 52 kt 60 mph | 2.57 mi E of Bleidorn | The public estimated wind gusts up to 60 mph near Bleidorn. |
| 2012-05-03 21:30 | Wind | 55 kt 63 mph | 2.07 mi S of Low Moor | The public reported four large trees down at Rock Creek Marina. One tree was 30 inches in diameter and fell on a motor home. Another tree fell on a cabin deck. Time of the event was estimated by radar. |
| 2012-03-31 21:33 | Hail | 1" quarter | .51 mi E of Wheatland | Dime to quarter sized hail fell in Wheatland at 1033 pm CDT March 31. This report was relayed by law enforcement. |
| 2011-08-08 12:30 | Hail | 1" quarter | 1.03 mi E of Andover | Time is estimated based on radar. |
| 2011-08-08 12:55 | Hail | 1" quarter | 2.67 mi WNW of Big Rock | Nickel to quarter sized hail fell. |
| 2011-08-08 12:55 | Wind | 60 kt 69 mph | 2.67 mi WNW of Big Rock | Four to 5 inch diameter branches were blown down. |
| 2011-07-23 04:00 | Wind | 61 kt 70 mph | 2.29 mi SE of Malone | Wind gusts estimated to be 70 mph blew down two trees near Low Moor, IA around 500 am CDT July 23. The trees blocked a gravel road west of town. |
| 2011-07-23 04:05 | Wind | 75 kt 86 mph | 1.55 mi E of Folletts | Wind gusts estimated to be 75 mph from an apparent microburst blew down several trees and partially ripped the roofs off of three homes in Folletts, IA around 505 pm CDT July 23. In addition, a barn had its roof blown off. |
| 2011-07-11 05:00 | Wind | 63 kt 72 mph | .86 mi SE of Charlotte | A 72 mph wind gust was recorded in Charlotte, IA at 600 am CDT July 11. |
| 2011-07-11 05:00 | Wind | 61 kt 70 mph | .86 mi SE of Charlotte | Wind gusts estimated to be 70 mph blew down two large trees in Charlotte, IA at 600 am CDT July 11. |
| 2011-07-11 05:15 | Wind | 61 kt 70 mph | .34 mi E of Dewitt | Wind gusts estimated to be 70 mph blew down a large tree in DeWitt, IA around 615 am CDT July 11. Power and phone lines were severed. |
| 2011-07-11 05:25 | Wind | 52 kt 60 mph | 1.69 mi WNW of Clinton | Wind gusts estimated to be 60 mph blew down some power lines in Clinton, IA around 625 am CDT July 11. |
| 2011-06-15 18:18 | Hail | 1" quarter | .51 mi E of Delmar | Quarter sized hail fell in Delmar, IA at 718 pm CDT June 15. |
| 2011-06-15 18:19 | Hail | 0.88" nickel | 2.14 mi NNE of Delmar | No narrative filed · source: NWS Employee |
| 2011-06-15 18:21 | Hail | 1" quarter | .51 mi E of Delmar | Quarter sized hail continued to fall in Delmar, IA at 721 pm CDT June 15. In addition, heavy rains produced some minor street flooding. |
| 2011-06-15 18:44 | Hail | 0.88" nickel | .86 mi SE of Elvira | No narrative filed · source: Trained Spotter |
| 2011-05-29 09:28 | Wind | 61 kt 70 mph | .51 mi E of Wheatland | Wind gusts estimated to be 70 mph blew down an 18 inch diameter tree in Wheatland, IA at 1028 am CDT May 29. |
| 2011-05-29 09:28 | Wind | 61 kt 70 mph | .51 mi E of Wheatland | Wind gusts estimated to be 70 mph were observed in Wheatland, IA at 1028 am CDT May 29. |
| 2011-05-29 10:10 | Wind | 52 kt 60 mph | 1.69 mi WNW of Clinton | Wind gusts estimated to be 60 mph blew down several branches in Clinton, IA at 1110 am CDT May 29. |
| 2011-05-22 15:55 | Hail | 1.75" golf ball | 1.03 mi E of Toronto | Golf ball sized hail fell in Toronto, IA at 455 pm CDT May 22. |
| 2011-05-22 16:30 | Wind | 61 kt 70 mph | .51 mi E of Calamus Eastvold Arp | Wind gusts estimated to be 70 mph blew some tree branches down 5 miles northwest of Grand Mound, IA at 530 pm CDT May 22. |
| 2011-05-22 16:30 | Wind | 61 kt 70 mph | .51 mi E of Calamus Eastvold Arp | Wind gusts estimated to be 70 mph were observed 5 miles northwest of Grand Mound, IA at 530 pm CDT May 22. |
| 2011-05-22 16:44 | Hail | 0.88" nickel | 1.38 mi N of Dewitt | No narrative filed · source: NWS Employee |
| 2011-05-22 16:44 | Wind | 52 kt 60 mph | 0 mi N of Dewitt | Wind gusts estimated to be 45 to 60 mph were observed in Dewitt, IA at 544 pm CDT May 22. |
| 2011-05-22 16:45 | Wind | 61 kt 70 mph | 2.07 mi S of Calamus Eastvold Arp | Wind gusts estimated to be 70 mph destroyed a machine shed, blew the roof off of a grain bin and blew some trees down about 2 miles northeast of Calamus, IA around 545 pm CDT May 22. |
| 2011-05-22 16:45 | Wind | 61 kt 70 mph | 2.07 mi S of Calamus Eastvold Arp | Wind gusts estimated to be 70 mph were observed 2 miles northeast of Calamus, IA around 545 pm CDT May 22. |
| 2011-05-22 16:45 | Wind | 61 kt 70 mph | 1.24 mi SE of Welton | Wind gusts estimated to be 70 mph caused a garage door to cave in about 5 miles north northwest of De Witt, IA around 545 pm CDT May 22. |
| 2011-05-22 16:49 | Wind | 61 kt 70 mph | 2.16 mi WNW of Charlotte | Wind gusts estimated to be 70 mph blew a tree down across Highway 136 about 23 miles northwest of Charlotte, IA around 549 pm CDT May 22. |
| 2011-04-03 19:20 | Hail | 0.88" nickel | 0 mi N of Dewitt | No narrative filed · source: Trained Spotter |
| 2010-10-26 04:35 | Wind | 57 kt 66 mph | 0 mi N of Clinton | The AWOS site at Clinton measured a 65 mph thunderstorm wind gust at 435 am cst. |
| 2010-09-21 14:10 | Wind | 52 kt 60 mph | 2.67 mi WNW of Big Rock | Wind gusts estimated to be 60 mph were observed about 4 miles south southwest of Wheatland, IA around 310 pm CDT September 21. |
| 2010-06-23 03:50 | Wind | 56 kt 64 mph | 0 mi N of Dewitt | Wind gusts estimated to be 65 mph blew some tree limbs onto power lines in De Witt, IA around 450 am June 23. |
| 2010-06-23 04:00 | Wind | 61 kt 70 mph | 0 mi N of Dewitt | Wind gusts estimated to be 70 mph blew several trees and limbs down throughout De Witt, IA around 500 am June 23. Some streets were blocked by fallen trees. |
| 2010-06-23 04:00 | Wind | 61 kt 70 mph | 1.24 mi SW of Dewitt | Wind gusts estimated to be 70 mph snapped two 18 to 24 inch diameter trees 1 mile west southwest of De Witt, IA around 500 am CDT June 23. |
| 2010-06-23 04:10 | Wind | 56 kt 64 mph | 1.69 mi WNW of Clinton | Wind gusts estimated to be 65 mph blew some tree limbs down onto power lines in Clinton, IA around 510 am June 23. |
| 2010-06-23 04:12 | Wind | 61 kt 70 mph | 2.67 mi N of Low Moor | A large grain bin and elevator were lifted slightly by severe thunderstorm winds, and then collapsed when they dropped back to the ground. |
| 2010-06-21 17:58 | Hail | 1.75" golf ball | 2.07 mi S of Calamus Eastvold Arp | Golf ball-sized hail fell 2 miles northeast of Calamus, IA at 658 pm June 21. |
| 2010-06-18 12:42 | Wind | 56 kt 64 mph | 1.38 mi S of Calamus | Wind gusts estimated to be 65 mph blew down some 6 inch diameter tree limbs about 2 miles south southwest of Calamus, IA at 142 pm June 18. |
| 2010-06-18 17:56 | Wind | 70 kt 81 mph | .51 mi E of Lost Nation | Wind gusts estimated to be 70 to 80 mph blew down some trees in Lost Nation, IA at 656 pm CDT June 18. At least one of the trees landed on power lines. Part of the lumber yard's tin roof was peeled off. |
Worst storm days in Clinton County
| Date | Reports that day | Largest hail | Peak gust |
|---|---|---|---|
| 2011-05-22 | 9 | 1.75" (golf ball) | 70 mph |
| 2015-07-13 | 6 | 2" (hen egg) | — |
| 2024-05-21 | 6 | 1.5" (ping pong ball) | 98 mph |
| 2016-03-31 | 6 | 1" (quarter) | — |
| 2010-06-18 | 6 | 0.88" (nickel) | 81 mph |
| 2017-05-17 | 6 | 0.75" (penny) | 75 mph |
| 2025-06-25 | 6 | — | 75 mph |
| 2023-07-28 | 6 | — | 70 mph |
| 2017-08-10 | 5 | 1.5" (ping pong ball) | — |
| 2017-04-15 | 5 | 1.5" (ping pong ball) | — |
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 |
|---|---|---|---|
| 2026-06-28 | 2" hen egg | 3.6 mi W of Charlotte | Several 1-2 inch size hailstones were reported. |
| 2015-07-13 | 2" hen egg | .86 mi NE of Calamus | Hail the size of golf balls fell, along with a few that were a little smaller than a tennis ball. |
| 2015-07-13 | 2" hen egg | 2.31 mi SSW of Grand Mound | No narrative filed |
| 2015-04-09 | 2" hen egg | 0 mi N of Dewitt | No narrative filed |
When does hail hit Clinton County?
Across 17 years of records, May produced the most reports (46), followed by the months either side of it. Monthly totals:
| Month | Reports | Share |
|---|---|---|
| January | 0 | 0.0% |
| February | 6 | 2.9% |
| March | 17 | 8.3% |
| April | 22 | 10.7% |
| May | 46 | 22.3% |
| June | 46 | 22.3% |
| July | 42 | 20.4% |
| August | 21 | 10.2% |
| September | 2 | 1.0% |
| October | 2 | 1.0% |
| November | 2 | 1.0% |
| 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 19045). 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.