SwathIQ / Hail map / Iowa / Lee County

Lee County, Iowa Hail Map & History

Lee County was hit as recently as 2026-05-04, 88 days ago. Lee County has recorded hail in nearly every year on the archive. The largest stone on record here is 4 inches, a grapefruit and 4 times the National Weather Service's 1 inch severe criterion, reported on 2020-04-08 near Denmark.

31
hail days since 2010
2
days with 2″+ hail
2
hail days this year
4.00″
largest stone on record

Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Iowa. Radar-indicated, not a guarantee of damage.

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The last hail here fell on 2026-05-04, around Sawyer. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Lee County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.

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How often it hails in Lee County

NOAA's Storm Prediction Center has logged 31 separate hail days here since 2010 -- 1.8 a year over 17 years of record. They carry 50 reports in total: most hail days here are logged from a single spot. Exactly one year since 2010 passed with no reported hail day at all. The busiest single year was 2024, with 5 hail days. The last five years have run hotter than the long-run rate: 12 days since 2022, against 1.6 a year before that.

Most hail here stays under 2 inches: only 2 of the 31 days on record passed it, 6%, the last on 2020-04-08. Those big days do not follow the county's usual calendar: most of them fall in April, not May. Golf-ball size is rarer still: 1.75 inches or more on 4 of the 31 days.

Across the whole of Iowa, see the Iowa hail map and history.

Hardest-hit places in Lee County

Reports cluster nearest Keokuk -- 8 of the county's 31 hail days -- then Donnellson (5), Denmark (4), Wever (4) and Argyle (4). Beyond those, NOAA names West Point, Fort Madison and Mooar on more than one hail day apiece.

PlaceHail days since 2010Largest stone
Keokuk51.00″
1 SSW Mooar21.75″
Wever21.75″
Denmark21.50″
Argyle21.00″

When it hails in Lee County

The season runs March through July: 27 of the 31 hail days on record fall in those 5 months (87%). May is the single busiest month, with 7 of them (23%). That peak sits inside the window rather than at either end. Hail has also been reported in February, August and September, outside that window. Reports span 8 of the 12 calendar months; the other 4 have never produced one.

MonthHail days
February1
March5
April6
May7
June5
July4
August1
September2

Recent Lee County hail days

That day put 2 reports on the map, the biggest 1 inch near Sawyer. 2 hail days have already been reported this year.

DateMax hailReports
2026-05-041.00″2
2026-03-101.50″1
2025-07-301.00″1
2024-07-071.00″1
2024-04-161.00″1
2024-03-311.50″1
2024-03-131.50″1
2024-03-041.00″1

How to read the Lee County map

The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 4 inches, which is the purple band. Look up a street address with the hail history by address tool.

Nearby counties

The nearest counties with a page of their own, over the state line included: Des Moines County (21 hail days), Henry County (20), Van Buren County (29), Clark County, Missouri (22) and Hancock County, Illinois (36). Lee County sits in between.

Des Moines County · Henry County · Van Buren County · Clark County, Missouri · Hancock County, Illinois

Back to the Iowa hail map or the U.S. hail map.

FAQ

How often does it hail in Lee County, Iowa?
NOAA's Storm Prediction Center has logged 31 separate hail days here since 2010 -- 1.8 a year over 17 years of record.
When is hail season in Lee County?
The season runs March through July: 27 of the 31 hail days on record fall in those 5 months (87%).
How big does hail get in Lee County?
The largest stone on record here is 4 inches, a grapefruit and 4 times the National Weather Service's 1 inch severe criterion, reported on 2020-04-08 near Denmark.
When was the last hail in Lee County?
Lee County was hit as recently as 2026-05-04, 88 days ago.
Is the Lee County hail map free?
Yes, no login. A free account adds door-knock address lists and CRM exports.

Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Lee County, Iowa only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.