The most recent reported hail day was 2026-04-23, 99 days ago. Jackson County is hit in most years, and usually several times over. The largest stone on record here is 4.5 inches, a softball and 4.5 times the National Weather Service's 1 inch severe criterion, reported on 2010-09-18 near Raytown.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Missouri. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-04-23, around Kansas City. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Jackson 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 52 separate hail days here since 2010 -- 3.1 a year over 17 years of record. Those days carry 210 separate reports between them, better than three on a typical one. No year since 2010 has gone by without at least one. The busiest single year was 2011, with 7 hail days. The last five years track the long-run rate, with 16 days since 2022.
6 of the 52 days reached 2 inches or more -- 12%, or about one hail day in 9, the last on 2018-07-19. Those big days do not follow the county's usual calendar: most of them fall in March, not April. 19 of the 52 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Missouri, see the Missouri hail map and history.
Reports cluster nearest Kansas City -- 16 of the county's 52 hail days -- then Raytown (12), Independence (12), Blue Springs (11) and Lee's Summit (10). Beyond those, NOAA names Oak Grove, Lone Jack, Buckner, Grandview, Unity Village, Greenwood, Lake Tapawingo, Maywood and Grain Valley on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Blue Springs | 5 | 2.75″ |
| Independence | 5 | 2.00″ |
| Kansas City | 5 | 1.75″ |
| Lone Jack | 4 | 2.75″ |
| Greenwood | 4 | 2.50″ |
The season runs March through July: 42 of the 52 hail days on record fall in those 5 months (81%). April is the single busiest month, with 11 of them (21%). That peak sits inside the window rather than at either end. Hail has also been reported in February, August, September and October, outside that window. January, November and December are the only months that have never produced a reported hail day.
| Month | Hail days |
|---|---|
| February | 1 |
| March | 8 |
| April | 11 |
| May | 9 |
| June | 5 |
| July | 9 |
| August | 4 |
| September | 3 |
| October | 2 |
That day put 1 report on the map, the biggest 1 inch near Kansas City. 4 hail days have already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-04-23 | 1.00″ | 1 |
| 2026-04-17 | 1.75″ | 2 |
| 2026-04-15 | 1.00″ | 4 |
| 2026-03-10 | 1.50″ | 13 |
| 2025-09-16 | 1.00″ | 1 |
| 2025-07-11 | 1.00″ | 1 |
| 2025-05-19 | 1.50″ | 2 |
| 2025-04-01 | 1.25″ | 3 |
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 4.5 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, over the state line included: Clay County (57 hail days), Cass County (41), Platte County (49), Wyandotte County, Kansas (26) and Johnson County, Kansas (61). Jackson County sits in between.
Clay County · Cass County · Platte County · Wyandotte County, Kansas · Johnson County, Kansas
Back to the Missouri hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Jackson County, Missouri only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.