Home › Iowa › Washington County
Washington County, IA hail & severe wind history
141 storm reports on file for Washington County between 2011-04-03 and 2026-06-11 — 61 hail and 80 severe thunderstorm wind. That averages 8.8 reports a year, and May is the busiest month.
Hail reports
61
3.8 per year
Largest hail
2.5"
tennis ball size · 2026-04-02
Strongest gust
86 mph
75 kt · 2019-05-16
Reported damage
$49K
property + crop, as filed
Storm days
73
distinct days with a report
Busiest year
2017
19 reports
Search every Washington 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).
141 of 141 reports match.
Reports by month for the current filter — the shape of Washington County’s storm season.
| Date | Type | Size / gust | Nearest location | Report detail |
|---|---|---|---|---|
| 2026-06-11 14:55 | Wind | 52 kt 60 mph | 1.04 mi W of Washington | Tree limbs blown down, and windows in a garage damaged by falling tree limbs reported. |
| 2026-04-23 21:54 | Wind | 70 kt 81 mph | .69 mi N of Kalona Arpt | One building destroyed, another damaged, and main building with roof damage at lumber yard. Likely around 80 mph winds given damage. Time estimated using radar data. |
| 2026-04-23 21:55 | Wind | 65 kt 75 mph | .86 mi NE of Kalona | Multiple trees blown down, with at least one on a home. The time was estimated using radar data. |
| 2026-04-23 21:55 | Wind | 70 kt 81 mph | 2.08 mi W of Brighton | Machine shed heavily damaged. The door was blown off and took down a power pole and lines. Time estimated based off radar. |
| 2026-04-17 15:52 | Wind | 50 kt 58 mph | 1.04 mi E of Rubio | Tree limbs down that were several inches in diameter. |
| 2026-04-17 16:00 | Wind | 54 kt 62 mph | 1.04 mi W of Washington | No narrative filed · source: Amateur Radio |
| 2026-04-17 16:01 | Wind | 60 kt 69 mph | .86 mi SW of Washington Arpt | No narrative filed · source: Mesonet |
| 2026-04-17 16:12 | Wind | 56 kt 64 mph | 5.18 mi SE of Richmond | No narrative filed · source: Mesonet |
| 2026-04-15 18:33 | Wind | 50 kt 58 mph | 2.08 mi NE of Ainsworth | A semi trailer was blown over on Highway 218. |
| 2026-04-15 18:42 | Hail | 1" quarter | 1.24 mi ENE of Riverside | No narrative filed · source: Trained Spotter |
| 2026-04-14 16:48 | Hail | 1.75" golf ball | .52 mi W of Wellman | Public report relayed by law enforcement. The time was estimated from radar data. |
| 2026-04-14 16:54 | Hail | 1.75" golf ball | .52 mi E of Lake Darling State Pk | The time was estimated from radar data. |
| 2026-04-14 17:29 | Hail | 2" hen egg | .52 mi E of Noble | No narrative filed · source: Trained Spotter |
| 2026-04-14 17:30 | Hail | 1.5" ping pong | 2.76 mi S of Crawfordsville | Storm chaser reported large hail. The time was estimated from radar data. |
| 2026-04-02 15:13 | Hail | 1.75" golf ball | .86 mi NE of Kalona | Golf ball size hail reported. |
| 2026-04-02 15:13 | Hail | 2.5" tennis ball | 1.48 mi NNE of Kalona | Damage to two police cares on Iowa Highway 1, including a cracked windshield on one care. Size estimated by deputies. Time estimated from radar data. |
| 2026-03-31 08:29 | Hail | 1.75" golf ball | 2.95 mi NNE of Washington | No narrative filed · source: Law Enforcement |
| 2025-07-11 14:25 | Wind | 65 kt 75 mph | 3.45 mi N of Brighton | A trained spotter shared a photo of a tree snapped near the base. The time of the event was estimated using radar. |
| 2025-03-19 10:54 | Wind | 52 kt 60 mph | 2.32 mi SSE of Crawfordsville | Measured by wind equipement. Time estimated from radar information. |
| 2025-03-14 18:45 | Wind | 64 kt 74 mph | 2.76 mi N of Washington | A measured 74 MPH wind gust was recorded north of Washington on G36. |
| 2025-03-14 18:53 | Wind | 65 kt 75 mph | .69 mi S of Brighton | Power poles reported down in Brighton Iowa. |
| 2025-03-14 18:53 | Wind | 65 kt 75 mph | .86 mi NE of Noble | A turkey house lost its roof and was blown onto a road, which pulled down power lines and poles. Multiple other power poles down around this area towards Brighton. The time was estimated from radar information. |
| 2025-03-14 18:55 | Wind | 58 kt 67 mph | .52 mi E of Washington Arpt | Measured by awos station KAWG Washington Airport. |
| 2025-03-14 18:55 | Wind | 65 kt 75 mph | 2.76 mi N of Washington | A machine shed and cattle shed were destroyed, both of these buildings had open sides to the south. The time was estimated from radar information and Washington Airport AWOS equipement. |
| 2025-03-14 19:00 | Wind | 68 kt 78 mph | .52 mi E of Washington | Wind measured at the Washington county EOC. |
| 2025-03-14 19:05 | Wind | 54 kt 62 mph | 1.48 mi SSE of Haskins | Measured by wind equipement. |
| 2024-10-24 19:04 | Hail | 0.75" penny | .86 mi NW of Washington Arpt | No narrative filed · source: Public |
| 2024-07-15 17:50 | Wind | 65 kt 75 mph | 4.15 mi N of Haskins | A public report of a pine tree twisted and snapped by thunderstorm winds. The time of the event was estimated using radar. |
| 2024-07-15 18:18 | Wind | 61 kt 70 mph | .86 mi SW of Brighton | A trained spotter reported that there was a large tree down across West Washington Street in town. The time of the event was estimated using radar. |
| 2024-07-02 16:43 | Wind | 52 kt 60 mph | .69 mi N of Kalona | A trained spotter reported that a trailer was blown over on Highway 22 near Kalona. The time of the event was estimated using radar. |
| 2024-07-02 17:05 | Wind | 70 kt 81 mph | 1.55 mi E of Riverside | A trained spotter relayed a 70 knot wind gust. Time of the evet was estimated using radar. |
| 2024-07-02 17:10 | Wind | 50 kt 58 mph | .52 mi E of Washington | A public report that a neighbors fence was blown over as well as a weighted basketball hoop. The time of the event was estimated using radar. |
| 2024-07-02 17:15 | Wind | 50 kt 58 mph | .86 mi NE of Washington Arpt | AWOS at the Washington Municipal Airport measured a 50 knot wind gust. |
| 2024-07-02 17:25 | Wind | 52 kt 60 mph | 1.25 mi ENE of Ainsworth | An amateur radio operator reported a 60 mph wind gust. |
| 2024-05-24 05:38 | Wind | 61 kt 70 mph | .52 mi E of Washington | A large tree was blown down. The time was estimated by radar data. |
| 2024-05-24 05:45 | Wind | 52 kt 60 mph | .86 mi SW of Brighton | Large tree branches blown down. The time was estimated by radar data. |
| 2024-05-21 17:35 | Wind | 52 kt 60 mph | .86 mi SW of Brighton | A large tree limb was blown down. Time estimated from radar data. |
| 2024-05-07 02:30 | Wind | 61 kt 70 mph | .86 mi SE of Washington | Numerous branches down down, on the south side of town, along with a couple of trees. The time was based on radar data. |
| 2024-05-07 02:45 | Wind | 56 kt 64 mph | .86 mi NE of Haskins | A tree was reported blown down. |
| 2024-04-16 14:57 | Hail | 1" quarter | .52 mi E of Kalona | Public report of 1 inch hail east of Kalona. |
| 2024-04-16 15:03 | Hail | 1" quarter | .52 mi E of Kalona | No narrative filed · source: Public |
| 2023-07-28 20:00 | Wind | 61 kt 70 mph | .52 mi E of Washington | Several trees down in the city. One large tree fell on a house and vehicle. |
| 2023-07-28 20:10 | Wind | 61 kt 70 mph | 1.7 mi ENE of Ainsworth | Several trees downed by thunderstorm outflow. |
| 2023-06-29 10:00 | Wind | 61 kt 70 mph | .86 mi SE of Washington | A tree was blown down, onto a power line. |
| 2023-05-07 16:40 | Hail | 1" quarter | 1.04 mi E of Kalona | No narrative filed · source: Trained Spotter |
| 2023-05-07 17:10 | Wind | 51 kt 59 mph | .86 mi NE of Washington Arpt | The AWOS reported a 59 mph wind gust with the thunderstorm. |
| 2023-05-07 17:11 | Wind | 52 kt 60 mph | .69 mi S of Brighton | There was a 12 inch diameter tree that was blown down. Time was estimated by radar. |
| 2023-05-07 17:23 | Hail | 1" quarter | .52 mi E of Washington | Report from Mping. |
| 2023-05-07 17:25 | Hail | 1" quarter | .52 mi E of Washington | No narrative filed · source: Trained Spotter |
| 2023-05-07 17:26 | Hail | 1" quarter | 1.25 mi WNW of Washington Arpt | No narrative filed · source: Trained Spotter |
| 2023-05-06 21:42 | Hail | 1" quarter | 2.07 mi W of Wellman | No narrative filed · source: Public |
| 2023-05-06 22:20 | Hail | 1" quarter | 1.04 mi E of Riverside | No narrative filed · source: Broadcast Media |
| 2022-07-11 05:28 | Hail | 1" quarter | 1.04 mi E of Riverside | A HAM radio operator reported dime to quarter sized hail. |
| 2022-07-11 05:28 | Wind | 50 kt 58 mph | 1.04 mi E of Riverside | Reported two inch branches down due to thunderstorm winds. |
| 2021-08-26 22:35 | Wind | 52 kt 60 mph | .69 mi N of Lake Darling State Pk | Measured wind gust at Lake Darling State Park. |
| 2021-07-09 16:56 | Hail | 0.75" penny | 0 mi N of Washington | Received a public report of three quarter inch hail. |
| 2021-06-20 19:47 | Hail | 1.25" half dollar | 8 mi W of Washington | CBS2 Meteorologist storm chasing reported lots of quarter size hail and few half dollar size. |
| 2021-06-20 19:59 | Wind | 56 kt 64 mph | .52 mi E of Washington | A few large limbs blown down, along with the roof blown off a baseball clubhouse. |
| 2021-06-18 22:52 | Hail | 0.75" penny | .86 mi SE of Washington | Penny size hail was reported. |
| 2021-06-18 23:17 | Hail | 1.5" ping pong | 5.18 mi SW of Wellman | Hail reaching 1.5 in diameter was reported by the public through social media. |
| 2020-08-10 11:30 | Wind | 61 kt 70 mph | 5.97 mi W of West Chester | Widespread straight-line winds that produced extensive damage were reported throughout Washington 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… |
| 2020-05-14 19:05 | Wind | 52 kt 60 mph | .69 mi S of Brighton | A 5 inch diameter tree limb was blown down. |
| 2020-05-14 19:18 | Wind | 64 kt 74 mph | 1.25 mi ESE of Crawfordsville | Media reported very strong winds. |
| 2020-04-07 20:09 | Hail | 0.88" nickel | 3.18 mi ENE of Kalona | No narrative filed · source: Trained Spotter |
| 2020-04-07 20:12 | Hail | 1" quarter | 1.04 mi E of Riverside | No narrative filed · source: Trained Spotter |
| 2019-06-28 09:50 | Wind | 56 kt 64 mph | 1.04 mi E of Rubio | A trained spotter reported flattened corn. The time of the event was estimated using radar. |
| 2019-06-28 10:10 | Wind | 65 kt 75 mph | .69 mi S of Brighton | A trained spotter reported that trees and power lines were down on railroad street. |
| 2019-05-16 20:29 | Wind | 67 kt 77 mph | 3.88 mi ENE of Riverside | No narrative filed · source: Broadcast Media |
| 2019-05-16 20:40 | Wind | 75 kt 86 mph | 3.88 mi ENE of Riverside | No narrative filed · source: Broadcast Media |
| 2018-09-18 10:00 | Wind | 55 kt 63 mph | .86 mi NE of Kalona | The local newspaper, The Kalona Times, reported a few large trees, numerous large branches, and a power pole down. |
| 2018-08-28 17:10 | Wind | 60 kt 69 mph | .86 mi SE of Washington | A trained spotter reported trees down in the city of Washington. |
| 2018-07-13 14:54 | Wind | 52 kt 60 mph | 1.7 mi ENE of Ainsworth | A trained spotter reported tree limbs down on a road associated with strong winds. |
| 2018-07-13 15:07 | Wind | 60 kt 69 mph | 4.86 mi N of Haskins | A county emergency manager reported a roof was blown off a machine shed. |
| 2018-06-28 14:15 | Hail | 0.75" penny | .52 mi E of Washington | No narrative filed · source: Trained Spotter |
| 2018-06-20 14:27 | Wind | 70 kt 81 mph | 1.25 mi ENE of West Chester | Power poles broken and crop damage reported through KCRG TV. |
| 2018-06-20 14:33 | Wind | 56 kt 64 mph | .86 mi SE of Washington | Large tree branches blown down. |
| 2018-05-13 13:33 | Wind | 52 kt 60 mph | .52 mi E of Washington | A delayed report was received from the public of a small tree down. |
| 2018-05-13 13:35 | Hail | 0.88" nickel | 4.89 mi NNE of Brighton | A trained spotter reported dime to nickel sized hail. |
| 2018-05-13 13:37 | Hail | 0.88" nickel | 4.16 mi SW of Washington | Received an amateur radio report of nickel sized hail six miles southwest of Washington on Highway 1. |
| 2017-08-10 14:53 | Wind | 52 kt 60 mph | 5.08 mi NNW of Haskins | A public report of 60 MPH wind gust from a thunderstorm. |
| 2017-08-10 14:53 | Hail | 1" quarter | 5.08 mi NNW of Haskins | No narrative filed · source: Public |
| 2017-08-10 15:00 | Hail | 1.5" ping pong | 3.46 mi NW of Haskins | The time of the event was estimated using radar. |
| 2017-08-10 15:00 | Wind | 52 kt 60 mph | 3.46 mi NW of Haskins | An amateur radio operator reported trees down near the intersection of County Road G36 and Spruce Avenue. |
| 2017-07-11 05:06 | Wind | 50 kt 58 mph | .52 mi W of Wellman | A local state official reported a tree limb down and was laying across the road in Wellman. |
| 2017-07-10 04:08 | Hail | 1" quarter | 3.49 mi S of Richmond | No narrative filed · source: Trained Spotter |
| 2017-06-15 21:59 | Hail | 0.88" nickel | 0 mi N of Wellman | No narrative filed · source: Trained Spotter |
| 2017-05-17 05:27 | Wind | 70 kt 81 mph | 3.7 mi W of West Chester | The local law enforcement reported extensive wind damage to trees, farm outbuildings, and one house and garage along Cedar Street for about 5 miles. Several hog confinement buildings lost parts of their roofs. |
| 2017-05-17 16:20 | Wind | 60 kt 69 mph | 2.08 mi E of Rubio | A trained spotter reported several trees were damaged, and some boards were blown off the railroad walkway. |
| 2017-05-17 16:20 | Wind | 60 kt 69 mph | .52 mi W of Wellman | The local law enforcement reported some outbuildings. A shed, and a few windows and roofs were damaged. |
| 2017-05-17 16:40 | Wind | 65 kt 75 mph | .52 mi W of Wellman | The local law enforcement reported a roof was off a shed, a garage, and hog and horse structures. Another garage was torn off a house. Trees and power lines were down with one tree down on a road. |
| 2017-05-17 18:35 | Wind | 58 kt 67 mph | .52 mi E of Washington | The Washington Airport AWOS sensor measured this wind gust. |
| 2017-05-17 18:46 | Hail | 1.5" ping pong | 1.04 mi E of Riverside | No narrative filed · source: Trained Spotter |
| 2017-04-15 16:23 | Hail | 1" quarter | 1.55 mi E of Riverside | No narrative filed · source: Trained Spotter |
| 2017-04-15 17:03 | Hail | 1" quarter | 1.24 mi ENE of Kalona | The public reported many hailstones the size of nickles with a few stones the size of quarters that were intermixed. |
| 2017-04-15 17:05 | Hail | 0.88" nickel | .52 mi E of Kalona | No narrative filed · source: Trained Spotter |
| 2017-04-10 00:45 | Hail | 0.88" nickel | 1.24 mi ENE of Kalona | No narrative filed · source: Public |
| 2017-03-06 21:19 | Wind | 61 kt 70 mph | .52 mi W of Wellman | No narrative filed · source: Amateur Radio |
| 2017-03-06 21:40 | Wind | 57 kt 66 mph | 1.24 mi ENE of Kalona | A trained spotter measured a wind gust of 57 kts. |
| 2016-07-13 13:35 | Wind | 52 kt 60 mph | .52 mi E of Washington | The county emergency manager reported some trees were down in the city of Washington. |
| 2016-07-13 13:35 | Wind | 54 kt 62 mph | .52 mi E of Washington | The AWOS site at Washington reported a 54 Kt wind gust. |
| 2016-05-24 15:30 | Wind | 52 kt 60 mph | 2.18 mi WSW of Wellman | This was a delayed report. A large tree was downed at a farm near Elm Avenue and 135th street about 2 miles west southwest of Wellman. The tree fell onto a minivan. |
| 2015-09-17 11:27 | Hail | 0.75" penny | 1.25 mi ENE of Ainsworth | No narrative filed · source: Trained Spotter |
| 2015-08-02 19:25 | Hail | 0.88" nickel | 4.84 mi N of Haskins | No narrative filed · source: Public |
| 2015-07-28 18:20 | Wind | 61 kt 70 mph | .69 mi S of Brighton | A few 20 to 25 inch diameter trees were uprooted. Roof damage to a structure was reported. Numerous tree branches up to 10 inches in diameter were down. This was a delayed report with time estimated from 720 to 740 PM. |
| 2015-07-28 18:42 | Wind | 52 kt 60 mph | .69 mi S of Brighton | Several small trees and branches were down in the streets of Brighton. Some smaller branches were of unknown diameter were down in streets. Winds were estimated at 60 MPH. This was a delayed report with the time estimated from local radar data. |
| 2015-04-09 15:11 | Hail | 1" quarter | .86 mi NE of Washington | No narrative filed · source: Trained Spotter |
| 2015-04-09 15:15 | Hail | 1.25" half dollar | .52 mi E of Riverside | No narrative filed · source: Public |
| 2014-08-31 23:40 | Wind | 52 kt 60 mph | .31 mi SSE of Brighton | Wind gusts estimated to be 60 mph blew down some three inch diameter tree limbs in Brighton, IA around 1240 am CDT September 1/1140 pm CST August 31. The soffit on a neighbor's house was also damaged. |
| 2014-08-31 23:45 | Wind | 52 kt 60 mph | 0 mi N of Washington | Wind gusts estimated to be 60 mph blew down a two inch diameter tree branch in a neighbor's yard around 1245 am CDT September 1/1145 pm CST August 31. Some loose objects in the area were also blown around during the storm. |
| 2014-07-22 05:45 | Hail | 0.88" nickel | 0 mi N of Washington | A trained spotter reported dime to possibly nickel sized hail. |
| 2014-07-22 05:45 | Hail | 0.75" penny | .52 mi E of Washington | A COOP Observer reported dime sized hail. The time of the event was estimated using radar. |
| 2014-07-22 05:45 | Hail | 1" quarter | .52 mi E of Washington | The Washington Fire Department reported half inch diameter hail with a few that were quarter sized. Time of the event was estimated using radar. |
| 2014-06-17 02:15 | Wind | 51 kt 59 mph | .52 mi E of Washington | Winds were measured by an AWOS station. |
| 2014-06-16 14:32 | Wind | 52 kt 60 mph | 2.59 mi NE of Washington Arpt | Small limbs were down due to 50 to 60 mph winds. |
| 2014-06-16 14:35 | Wind | 58 kt 67 mph | .52 mi E of Washington | Wind gust measured by AWOS. |
| 2014-06-16 14:46 | Wind | 58 kt 67 mph | .52 mi E of Washington | Wind gust measured by AWOS. |
| 2014-06-16 14:55 | Hail | 0.75" penny | 1.55 mi E of Riverside | The public reported hail up to the size of dimes along with 50 mph winds. |
| 2014-05-12 17:10 | Hail | 1" quarter | 3.49 mi S of Crawfordsville | Quarter sized hail fell about 3 miles south of Crawfordsville, IA near the Henry County line at 510 pm CDT May 12. |
| 2014-05-12 17:18 | Hail | 1.25" half dollar | .86 mi SE of Crawfordsville | Half dollar sized hail fell in Crawfordsville, IA around 518 pm CDT May 12. |
| 2014-05-11 14:43 | Hail | 1.75" golf ball | .69 mi S of Brighton | Golf ball sized hail fell in Brighton, IA for over 4 minutes from 343 pm to 347 pm CDT May 11. |
| 2014-04-28 14:20 | Hail | 0.75" penny | .69 mi S of Brighton | No narrative filed · source: COOP Observer |
| 2014-04-12 23:15 | Hail | 0.75" penny | .52 mi W of Wellman | No narrative filed · source: Law Enforcement |
| 2014-02-20 13:07 | Hail | 0.75" penny | .52 mi E of Washington | No narrative filed · source: Fire Department/Rescue |
| 2013-09-19 17:20 | Wind | 61 kt 70 mph | .52 mi E of Washington | Law Enforcement reported that trees were down along with roof and vehicle damage at the Washington Golf and Country Club. The time of this event was estimated from radar. |
| 2013-08-06 20:57 | Hail | 0.75" penny | .52 mi E of Kalona | A trained spotter reported pea to penny size hail for several minutes at Kalona. |
| 2013-06-24 14:00 | Wind | 54 kt 62 mph | .86 mi NE of Washington | A trained spotter reported that trees were down in town, corn was blown over, and a small metal outbuilding was destroyed. |
| 2013-05-19 19:54 | Hail | 1.75" golf ball | 5.26 mi SSE of West Chester | A trained spotter reported golf ball size hail near Ainsworth. |
| 2013-05-19 20:10 | Wind | 50 kt 58 mph | .52 mi E of Washington | A COOP observer reported 3 inch diameter tree limbs down. |
| 2013-05-19 21:31 | Wind | 61 kt 70 mph | 1.24 mi ENE of Kalona | A trained spotter estimated winds of 65 to 70 mph. |
| 2013-04-17 09:30 | Hail | 1" quarter | .52 mi E of Washington | Quarter sized hail fell in Washington, IA around 1030 am CDT April 17. |
| 2013-04-17 09:48 | Hail | 1" quarter | 4.17 mi NW of Noble | Quarter sized hail fell 6 miles south of Washington, IA around 1048 am CDT April 17. |
| 2013-04-17 09:51 | Hail | 0.88" nickel | 5.26 mi SSE of West Chester | No narrative filed · source: Trained Spotter |
| 2012-06-29 20:07 | Hail | 1" quarter | 2.84 mi NNE of Washington | Quarter sized hail fell about 3 miles north northeast of Washington, IA at 907 pm CDT June 29. This is on Route G36 near the Riverside Road exit. |
| 2012-05-28 14:55 | Hail | 1" quarter | 1.55 mi E of Riverside | A trained spotter reported quarter sized hail along with small limbs down and zero visibility in very heavy rain. |
| 2012-05-03 19:55 | Hail | 1.5" ping pong | 0 mi N of Crawfordsville | A person from the public reported ping pong ball sized hail. Time was estimated from radar. |
| 2011-08-07 00:20 | Wind | 52 kt 60 mph | .52 mi E of Washington | The baseball and softball dugouts were blown off of the field and into the road at Stewart Elementary School in Washington. |
| 2011-06-14 10:05 | Hail | 0.75" penny | 4.38 mi WSW of Washington Arpt | No narrative filed · source: Public |
| 2011-05-29 08:30 | Wind | 52 kt 60 mph | 5.26 mi SSE of West Chester | Wind gusts estimated to be 60 mph were observed 6 miles west southwest of Washington, IA at 930 am CDT May 29. |
| 2011-05-29 08:48 | Wind | 52 kt 60 mph | .52 mi W of Wellman | Wind gusts estimated to be 60 mph blew down some tree limbs and power lines in Wellman, IA at 948 am CDT May 29. |
| 2011-05-22 15:53 | Hail | 0.88" nickel | 1.55 mi E of Riverside | No narrative filed · source: Trained Spotter |
| 2011-04-03 18:49 | Hail | 1.75" golf ball | 3.18 mi ESE of Riverside | Golf ball sized hail fell 2 miles east southeast of Riverside, IA at 749 pm CDT April 3. |
Worst storm days in Washington County
| Date | Reports that day | Largest hail | Peak gust |
|---|---|---|---|
| 2025-03-14 | 7 | — | 78 mph |
| 2017-05-17 | 6 | 1.5" (ping pong ball) | 81 mph |
| 2023-05-07 | 6 | 1" (quarter) | 60 mph |
| 2024-07-02 | 5 | — | 81 mph |
| 2026-04-14 | 4 | 2" (hen egg) | — |
| 2017-08-10 | 4 | 1.5" (ping pong ball) | 60 mph |
| 2014-06-16 | 4 | 0.75" (penny) | 67 mph |
| 2026-04-17 | 4 | — | 69 mph |
| 2013-05-19 | 3 | 1.75" (golf ball) | 70 mph |
| 2017-04-15 | 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 |
|---|---|---|---|
| 2026-04-14 | 2" hen egg | .52 mi E of Noble | No narrative filed |
| 2026-04-02 | 2.5" tennis ball | 1.48 mi NNE of Kalona | Damage to two police cares on Iowa Highway 1, including a cracked windshield on one care. Size estimated by deputies. Time estimated from radar data. |
When does hail hit Washington County?
Across 16 years of records, May produced the most reports (38), followed by the months either side of it. Monthly totals:
| Month | Reports | Share |
|---|---|---|
| January | 0 | 0.0% |
| February | 1 | 0.7% |
| March | 11 | 7.8% |
| April | 31 | 22.0% |
| May | 38 | 27.0% |
| June | 20 | 14.2% |
| July | 24 | 17.0% |
| August | 12 | 8.5% |
| September | 3 | 2.1% |
| October | 1 | 0.7% |
| 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)
Look up another place
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 19183). 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.