SwathIQ / Hail map / Illinois / Franklin County

Franklin County, Illinois Hail Map & History

Franklin County was hit as recently as 2026-06-16, 45 days ago. Franklin County is hit in most years. The largest stone on record here is 3 inches, a teacup and 3 times the National Weather Service's 1 inch severe criterion, reported on 2017-02-28 near Benton.

24
hail days since 2010
3
days with 2″+ hail
2
hail days this year
3.00″
largest stone on record

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

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The last hail here fell on 2026-06-16, around Sesser. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Franklin 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 Franklin County

NOAA's Storm Prediction Center has logged 24 separate hail days here since 2010 -- 1.4 a year over 17 years of record. Those days carry 48 separate reports between them, two or three on a typical one. 5 of those 17 years produced none at all. The busiest single year was 2025, with 3 hail days. The last five years track the long-run rate, with 9 days since 2022.

3 of the 24 days reached 2 inches or more -- 12%, or about one hail day in 8, the last on 2020-03-12. Those big days do not follow the county's usual calendar: most of them fall in February, not May. Golf-ball size is rarer still: 1.75 inches or more on 5 of the 24 days.

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

Hardest-hit places in Franklin County

Reports cluster nearest West Frankfort -- 9 of the county's 24 hail days -- then Christopher (6), Sesser (6), Benton (4) and Zeigler (3). Beyond those, NOAA names Buckner, Royalton, Thompsonville and West City on more than one hail day apiece.

PlaceHail days since 2010Largest stone
West Frankfort81.75″
Sesser51.25″
Christopher41.75″
Zeigler32.00″
Buckner21.00″

When it hails in Franklin County

The season runs February through July: 21 of the 24 hail days on record fall in those 6 months (88%). May is the single busiest month, with 5 of them (21%). That peak sits inside the window rather than at either end. Hail has also been reported in September and October, outside that window. Reports span 8 of the 12 calendar months; the other 4 have never produced one.

MonthHail days
February3
March3
April4
May5
June4
July2
September2
October1

Recent Franklin County hail days

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

DateMax hailReports
2026-06-161.00″1
2026-04-271.00″2
2025-09-141.00″1
2025-05-161.00″1
2025-03-301.50″3
2024-05-081.00″1
2024-02-091.00″2
2023-06-301.75″4

How to read the Franklin 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 3 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: Williamson County (24 hail days), Perry County (17) and Jackson County (26). Franklin County sits in between.

Williamson County · Perry County · Jackson County

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

FAQ

How often does it hail in Franklin County, Illinois?
NOAA's Storm Prediction Center has logged 24 separate hail days here since 2010 -- 1.4 a year over 17 years of record.
When is hail season in Franklin County?
The season runs February through July: 21 of the 24 hail days on record fall in those 6 months (88%).
How big does hail get in Franklin County?
The largest stone on record here is 3 inches, a teacup and 3 times the National Weather Service's 1 inch severe criterion, reported on 2017-02-28 near Benton.
When was the last hail in Franklin County?
Franklin County was hit as recently as 2026-06-16, 45 days ago.
Is the Franklin 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, Franklin County, Illinois only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.