The most recent reported hail day was 2026-04-17, 105 days ago. Linn County is hit in most years, and usually several times over. The largest stone on record here is 2.75 inches, a baseball and 2.8 times the National Weather Service's 1 inch severe criterion, reported on 2020-07-11 near Walford.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Iowa. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-04-17, around Prairieburg. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Linn 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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See call-center options ->NOAA's Storm Prediction Center has logged 38 separate hail days here since 2010 -- 2.2 a year over 17 years of record. Those days carry 176 separate reports between them, better than three on a typical one. 2 of those 17 years produced none at all. The busiest single year was 2024, with 5 hail days. The last five years track the long-run rate, with 13 days since 2022.
5 of the 38 days reached 2 inches or more -- 13%, or about one hail day in 8, the last on 2026-03-10. Those big days do not follow the county's usual calendar: most of them fall in June, not April. 13 of the 38 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Iowa, see the Iowa hail map and history.
Reports cluster nearest Cedar Rapids -- 17 of the county's 38 hail days -- then Marion (11), Hiawatha (7), Robins (5) and Central City (4). That one town is named on 45% of them. Beyond those, NOAA names Fairfax, Mount Vernon, Center Point, Alburnett, Palo, Toddville, Coggon, Nnw Springville and Prairieburg on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Marion | 6 | 1.75″ |
| Hiawatha | 5 | 2.00″ |
| Cedar Rapids | 5 | 1.75″ |
| 5 Nne Cedar Rapids | 3 | 2.50″ |
| Center Point | 3 | 1.25″ |
The season runs March through July: 33 of the 38 hail days on record fall in those 5 months (87%). April is the single busiest month, with 10 of them (26%). That peak sits inside the window rather than at either end. Hail has also been reported in February, August, September and November, outside that window. January, October and December are the only months that have never produced a reported hail day.
| Month | Hail days |
|---|---|
| February | 1 |
| March | 4 |
| April | 10 |
| May | 6 |
| June | 10 |
| July | 3 |
| August | 2 |
| September | 1 |
| November | 1 |
That day put 7 reports on the map, the biggest 1 inch near Prairieburg. 3 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-04-17 | 1.00″ | 7 |
| 2026-04-14 | 1.75″ | 11 |
| 2026-03-10 | 2.00″ | 7 |
| 2025-08-15 | 1.50″ | 1 |
| 2024-05-27 | 1.00″ | 1 |
| 2024-05-24 | 1.00″ | 1 |
| 2024-05-23 | 1.00″ | 1 |
| 2024-05-21 | 1.00″ | 1 |
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 2.75 inches, which is the purple band. Look up a street address with the hail history by address tool.
The nearest counties with a page of their own: Benton County (32 hail days), Jones County (21) and Johnson County (33). Linn County takes more hail than any of them.
Benton County · Jones County · Johnson County
Back to the Iowa hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Linn County, Iowa only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.