Illinois hail map — April 1, 2024
NOAA radar detected hail of an inch or more over 2 Illinois cities on April 1, 2024. The largest stones — 1.50″, half dollar size — fell over Granite City.

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- The April 1, 2024 swath — and every other storm since 2023 across Illinois
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- Cities hit
- 2
- in Illinois
- Largest stone
- 1.50″
- half dollar size
- Impact rating
- 5/10
- from stone size
Sizes come from NOAA radar, which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
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Illinois cities hit on April 1, 2024
What people on the ground measured in Illinois on April 1, 2024
4 reports filed with the National Weather Service — 1 from trained observers or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 1.25″ half dollar size Public3 NW Assumption, IL6:37 PM CDTChristian County
- 1.00″ quarter size Trained Spotter3 E Kankakee, IL3:14 PM CDTKankakee County
Trained spotter reports hail east of Kankakee with most stones near pea size, but a few hail stones up to quarter size mixed in. Time estimated by radar.
- 0.88″ penny size Amateur Radio1 W Bethalto, IL7:16 PM CDTMadison County
Report of nickel sized hail and heavy rain.
- 0.50″ penny size Public1 NW Long Lake, IL3:20 PM CDTLake County
Public report of hail up to half inch diameter near Fox Lake. Time estimated by radar.
Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.
Other states hit on April 1, 2024
The full US hail map for April 1, 2024 →Other Illinois hail days
Shopping for a hail app to work Illinois?
This page is one storm. If you are deciding which tool to work Illinois with all season, these compare the ones roofers actually buy — with every price taken from the vendor's own site and linked.
- Best hail tracking apps, comparedHailMate, HailTrace, Hail Recon, HailStrike and RadarScope — every published price sourced and linked, and who each one is genuinely right for.
- HailMate vs HailTraceStreet-level NOAA swaths on a map your crew can knock, with the CRM already inside — instead of quote-only meteorologist maps billed on top of one.
- Hail map apps for roofers (and the Hail Recon alternative)Every storm on one map instead of loading dates one at a time — plus the canvassing and the whole claim, monthly, for what one state costs them a year.
- Best canvassing apps, comparedHailMate, SalesRabbit, SPOTIO, Knockio, RoofLink and Badger Maps — every published price sourced and linked, and two of them publish none.
Illinois hail on April 1, 2024
NOAA radar put hail of an inch or more over 2 Illinois cities that day. The largest stones — 1.50 inches, half dollar size — were over Granite City. Every city hit is listed above with its own stone size.