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Allamakee County, IA hail & severe wind history
71 storm reports on file for Allamakee County between 2010-07-17 and 2026-04-17 — 25 hail and 46 severe thunderstorm wind. That averages 4.2 reports a year, and Jun is the busiest month.
Hail reports
25
1.5 per year
Largest hail
2"
hen egg size · 2012-09-04
Strongest gust
81 mph
70 kt · 2013-05-19
Reported damage
$619K
property + crop, as filed
Storm days
40
distinct days with a report
Busiest year
2012
12 reports
Search every Allamakee 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).
71 of 71 reports match.
Reports by month for the current filter — the shape of Allamakee County’s storm season.
| Date | Type | Size / gust | Nearest location | Report detail |
|---|---|---|---|---|
| 2026-04-17 14:51 | Hail | 1" quarter | 0 mi N of Harpers Ferry | The public reported quarter sized hail in Harpers Ferry. |
| 2026-04-17 15:18 | Hail | 1" quarter | .5 mi E of Postville | Emergency management reported quarter sized hail in Postville. |
| 2024-09-21 15:41 | Wind | 45 kt 52 mph | 4.61 mi NNW of Lansing | Emergency management reported tree branches down on State Highway 26. |
| 2024-09-21 15:43 | Hail | 0.88" nickel | 2 mi E of New Albin | Emergency management reported nickel sized hail 2 miles east of New Albin. |
| 2024-08-05 21:48 | Wind | 50 kt 58 mph | .85 mi SE of Waterville | The public reported a large tree snapped at the base. |
| 2024-06-22 16:01 | Wind | 50 kt 58 mph | .5 mi E of Chester | Emergency Management reported trees down near Dorchester. |
| 2024-06-12 14:07 | Wind | 51 kt 59 mph | .5 mi E of Postville | A 59 mph gust was measured near Postville. |
| 2024-06-12 14:09 | Wind | 50 kt 58 mph | 2.13 mi NNE of Postville | Trees were reported down in the Yellow River area. Large amounts of dust and dirt were kicked up as well. |
| 2024-06-12 14:18 | Wind | 60 kt 69 mph | 3.03 mi E of Volney | Trees were reported down on an RV, and another RV was tipped over at the Scenic View Campground. |
| 2024-05-21 18:00 | Wind | 55 kt 63 mph | 0 mi N of Waukon Muni Arpt | A trained spotter reported a tree split in half that destroyed a recreational vehicle. |
| 2022-07-23 22:39 | Wind | 52 kt 60 mph | .95 mi NE of Ludlow | An estimated 60 mph wind gust occurred west of Waukon. |
| 2022-07-23 22:45 | Wind | 52 kt 60 mph | 0 mi N of Waukon | An estimated 60 mph wind gust occurred in Waukon. The roof was blown off a business, a home lost part of its roof and several other businesses sustained some roof damage. |
| 2022-07-23 22:47 | Wind | 55 kt 63 mph | 2.28 mi SW of Waukon | A barn was blown down and two silos collapsed on a farm southwest of Waukon. |
| 2021-12-15 20:20 | Wind | 50 kt 58 mph | 0 mi N of Waukon | Power poles, lines and trees were blown down in Waukon. Almost 2,700 customers lost power because of the downed poles and lines. |
| 2021-08-27 18:35 | Wind | 50 kt 58 mph | .5 mi E of Postville | Power lines were blown down in Postville. |
| 2020-07-09 13:07 | Wind | 35 kt 40 mph | .86 mi NE of Postville | Trees and a power line were blown down in Postville. |
| 2020-07-09 13:22 | Wind | 35 kt 40 mph | 0 mi N of Waukon | Trees and power lines were blown down in Waukon. |
| 2019-09-09 19:03 | Wind | 45 kt 52 mph | 2.44 mi SW of Waukon Jct | Trees were blown down onto State Highway 76 southwest of Harpers Ferry. |
| 2019-09-03 01:43 | Wind | 50 kt 58 mph | 2.07 mi N of Harpers Ferry | Trees were blown down across a road north of Harpers Ferry. |
| 2019-08-18 02:30 | Wind | 52 kt 60 mph | 0 mi N of Waukon | Thunderstorms with high winds produced damage in and near Waukon. Trees and crops were blown over, a camper was rolled onto its side and house windows were broken. |
| 2019-08-05 19:24 | Wind | 45 kt 52 mph | 3.26 mi SE of Ludlow | A barn was destroyed by damaging winds east of Frankville. Tin from the barn was thrown into power lines causing a power outage. |
| 2019-06-30 15:20 | Wind | 50 kt 58 mph | 0 mi N of Waukon | Lots of trees and power lines were blown down across the northern part of the county. |
| 2018-06-30 18:26 | Wind | 35 kt 40 mph | 3.43 mi NW of Hanover | Numerous temporary tents were blown over at an outdoor wedding reception southwest of Dorchester. |
| 2018-06-09 18:10 | Wind | 50 kt 58 mph | 3 mi W of Waukon | Trees were blown down west of Waukon. |
| 2018-05-25 17:33 | Wind | 55 kt 63 mph | 2.21 mi ENE of Church | Numerous trees were blown down across northern Allamakee County in the vicinity of Lansing. |
| 2018-05-25 17:52 | Wind | 54 kt 62 mph | 4.18 mi SE of Ludlow | Numerous trees were blown down across the central and southern part of Allamakee County south of Waukon. |
| 2018-04-13 06:17 | Hail | 0.88" nickel | 2.94 mi SSW of Ludlow | No narrative filed · source: Public |
| 2017-07-19 17:12 | Wind | 50 kt 58 mph | 0 mi N of Waukon | Part of a roof was removed from an outbuilding and corn was pushed over near Waukon. |
| 2017-07-19 17:14 | Wind | 52 kt 60 mph | 3.59 mi W of Maud | A tree was blown down onto a house, an outbuilding was damaged and corn was blown down south of Waukon. |
| 2017-07-19 17:15 | Wind | 53 kt 61 mph | 1.36 mi NW of Rossville | A farmer sustained injuries when the barn he was doing chores in was blown down on top of him. |
| 2017-05-17 15:26 | Wind | 52 kt 60 mph | 2.76 mi N of Waukon | An estimated 60 mph wind gust occurred north of Waukon. |
| 2017-05-17 15:33 | Hail | 0.75" penny | 0 mi N of Harpers Ferry | No narrative filed · source: Amateur Radio |
| 2016-07-23 07:35 | Wind | 35 kt 40 mph | .85 mi SE of Lansing | Trees and branches were blown down in Lansing. Boat docks were damaged when the wind pushed some boats several feet upstream and onto the shore. |
| 2016-07-12 00:07 | Wind | 53 kt 61 mph | 3.75 mi SSE of Chester | A roof was damaged and numerous trees were blown down along Iowa River Drive southeast of Dorchester. |
| 2015-06-29 17:08 | Hail | 1" quarter | 1.71 mi NW of Lansing | Quarter sized hail fell northwest of Lansing. |
| 2015-06-29 17:20 | Hail | 1" quarter | 3.42 mi SW of Wexford | Quarter sized hail fell northwest of Harpers Ferry. |
| 2015-06-29 17:28 | Hail | 0.88" nickel | 0 mi N of Harpers Ferry | No narrative filed · source: Public |
| 2015-06-22 07:10 | Wind | 50 kt 58 mph | 3.45 mi S of Waukon Muni Arpt | Trees were blown down south of Waukon. |
| 2015-06-22 07:23 | Wind | 50 kt 58 mph | .5 mi E of Postville | Trees were blown down and the power knocked out in Postville. |
| 2014-08-18 16:15 | Hail | 1" quarter | 0 mi N of Waukon | Quarter sized hail fell in Waukon. |
| 2014-08-18 16:30 | Hail | 0.75" penny | 3.74 mi NE of Waukon Muni Arpt | No narrative filed · source: Public |
| 2014-06-29 20:10 | Hail | 0.88" nickel | 1.66 mi ENE of Ludlow | No narrative filed · source: Public |
| 2014-06-29 20:10 | Hail | 0.75" penny | 0 mi N of Waukon | No narrative filed · source: Trained Spotter |
| 2014-06-29 20:10 | Wind | 52 kt 60 mph | 0 mi N of Waukon | An estimated wind gust of 60 mph occurred in Waukon. |
| 2014-06-29 20:13 | Wind | 50 kt 58 mph | 3.6 mi NNE of Waukon Muni Arpt | Three 2 foot diameter trees were blown down on State Highway 9 northeast of Waukon. |
| 2014-04-12 14:48 | Hail | 1" quarter | 3.66 mi SE of Ludlow | Quarter sized hail was reported between Postville and Waukon. |
| 2014-04-12 14:55 | Hail | 0.75" penny | 0 mi N of Waukon | No narrative filed · source: Law Enforcement |
| 2014-04-12 14:55 | Hail | 1" quarter | 0 mi N of Waukon | Quarter sized hail was reported in Waukon. |
| 2014-04-12 17:53 | Hail | 0.88" nickel | 0 mi N of Waukon | No narrative filed · source: Fire Department/Rescue |
| 2014-04-12 18:39 | Hail | 1" quarter | 2.04 mi NE of Dorchester | Quarter sized hail fell near Dorchester. |
| 2014-04-12 19:00 | Hail | 0.75" penny | 2.15 mi E of New Albin | No narrative filed · source: Public |
| 2013-06-21 06:46 | Wind | 50 kt 58 mph | 3.42 mi S of Chester | A tree limb was blown down onto a tent at a campground near Dorchester. One person in the tent was injured and taken to a local hospital. |
| 2013-05-19 20:55 | Wind | 65 kt 75 mph | .5 mi E of Postville | Trees were blown down in Postville. |
| 2013-05-19 21:04 | Wind | 70 kt 81 mph | 0 mi N of Waukon | Trees were blown down in Waukon. |
| 2013-05-19 21:09 | Wind | 70 kt 81 mph | 2.52 mi W of Elon | Trees were blown down east of Waukon. |
| 2012-09-04 16:40 | Hail | 1.75" golf ball | 2.23 mi E of New Albin | Golf ball sized hail fell in New Albin. |
| 2012-09-04 17:31 | Hail | 2" hen egg | .5 mi E of Chester | Up to 2 inch diameter hail fell in Dorchester. |
| 2012-09-04 17:55 | Wind | 50 kt 58 mph | 1.15 mi SSE of Lansing | Trees were blown down on the north side of Lansing. |
| 2012-09-04 18:04 | Hail | 0.75" penny | .68 mi E of Chester | No narrative filed · source: Law Enforcement |
| 2012-09-04 18:25 | Hail | 1.25" half dollar | 0 mi N of Harpers Ferry | Up to half dollar sized hail fell in Harpers Ferry. |
| 2012-07-24 01:24 | Wind | 50 kt 58 mph | 0 mi N of Waukon | Large trees were blown down, including one on a car and sporadic power outages in Waukon. |
| 2012-07-18 15:06 | Wind | 50 kt 58 mph | .53 mi E of Chester | A barn was destroyed by winds near Dorchester killing 7 calves that were inside the barn. |
| 2012-06-11 00:41 | Wind | 56 kt 64 mph | 2.6 mi WNW of Waukon | Trees were blown down on Old Stage Road three miles west-northwest of Waukon. |
| 2012-06-11 00:54 | Wind | 50 kt 58 mph | 3.42 mi NE of Waukon Muni Arpt | Trees were blown down on Dug Road three miles northeast of Waukon. |
| 2012-05-24 16:28 | Wind | 50 kt 58 mph | 1.52 mi E of Waukon Muni Arpt | Just east of Waukon, a two foot diameter tree was twisted off at it base and fell onto a house. Three semi-permanent farm buildings were lifted and moved by the wind. One of these buildings was destroyed upon impact with the ground. |
| 2012-05-02 00:36 | Hail | 1" quarter | 1.92 mi SW of Volney | No narrative filed · source: Public |
| 2012-03-19 19:50 | Wind | 52 kt 60 mph | 0 mi N of Waukon | Power poles were blown down in Waukon. |
| 2011-06-08 18:52 | Hail | 0.88" nickel | 1.71 mi SW of Wexford | No narrative filed · source: Public |
| 2011-06-08 18:58 | Hail | 0.88" nickel | 2.46 mi ESE of Wexford | No narrative filed · source: Public |
| 2010-08-08 23:16 | Wind | 50 kt 58 mph | 0 mi N of Waukon | Several trees were blown down in the city of Waukon. |
| 2010-07-17 23:30 | Wind | 52 kt 60 mph | 3.09 mi ENE of Chester | Two trees were blown down blocking a driveway. |
Worst storm days in Allamakee County
| Date | Reports that day | Largest hail | Peak gust |
|---|---|---|---|
| 2014-04-12 | 6 | 1" (quarter) | — |
| 2012-09-04 | 5 | 2" (hen egg) | 58 mph |
| 2014-06-29 | 4 | 0.88" (nickel) | 60 mph |
| 2015-06-29 | 3 | 1" (quarter) | — |
| 2024-06-12 | 3 | — | 69 mph |
| 2022-07-23 | 3 | — | 63 mph |
| 2017-07-19 | 3 | — | 61 mph |
| 2013-05-19 | 3 | — | 81 mph |
| 2026-04-17 | 2 | 1" (quarter) | — |
| 2014-08-18 | 2 | 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 |
|---|---|---|---|
| 2012-09-04 | 2" hen egg | .5 mi E of Chester | Up to 2 inch diameter hail fell in Dorchester. |
When does hail hit Allamakee County?
Across 15 years of records, June produced the most reports (21), followed by the months either side of it. Monthly totals:
| Month | Reports | Share |
|---|---|---|
| January | 0 | 0.0% |
| February | 0 | 0.0% |
| March | 1 | 1.4% |
| April | 9 | 12.7% |
| May | 10 | 14.1% |
| June | 21 | 29.6% |
| July | 13 | 18.3% |
| August | 7 | 9.9% |
| September | 9 | 12.7% |
| October | 0 | 0.0% |
| November | 0 | 0.0% |
| December | 1 | 1.4% |
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 19005). 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.