Illinois hail map — March 31, 2024
NOAA radar detected hail of an inch or more over 1 Illinois city on March 31, 2024. The largest stones — 1.00″, quarter size — fell over Decatur.

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- The March 31, 2024 swath — and every other storm since 2023 across Illinois
- GPS door-knocking — pins, photos and who you have already hit
- Jobs, contacts, estimates and invoices included
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- Cities hit
- 1
- in Illinois
- Largest stone
- 1.00″
- quarter size
- Impact rating
- 3/10
- 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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This page covers Illinois as a whole. Check your own address to see every storm on record for your roof — the date and the stone size for each one — and we'll email you the full report to keep.
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Illinois cities hit on March 31, 2024
What people on the ground measured in Illinois on March 31, 2024
12 reports filed with the National Weather Service — 4 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.
- 2.50″ hen egg size Broadcast Media2 NE Decatur, IL7:52 PM CDTMacon County
Photo from public of tennis ball size hail.
- 2.00″ hen egg size CO-OP ObserverMount Pulaski, IL7:21 PM CDTLogan County
- 2.00″ hen egg size Public2 SSW Forsyth, IL7:50 PM CDTMacon County
Picture via social media; Wolf Road.
- 1.75″ golf ball size MesonetMason City, IL6:39 PM CDTMason County
Golf ball size hail 3 miles SW of Mason City.
- 1.75″ golf ball size Emergency MngrMiddletown, IL6:56 PM CDTLogan County
Golf ball size hail in Middletown.
- 1.75″ golf ball size Emergency MngrLatham, IL7:22 PM CDTLogan County
- 1.75″ golf ball size Emergency MngrLatham, IL7:30 PM CDTLogan County
- 1.75″ golf ball size Public2 W Warrensburg, IL7:40 PM CDTMacon County
Report from mPING: Golf Ball (1.75 in.).
- 1.75″ golf ball size PublicForsyth, IL7:46 PM CDTMacon County
Picture via social media.
- 1.75″ golf ball size PublicForsyth, IL7:55 PM CDTMacon County
Report from mPING: Golf Ball (1.75 in.).
- 1.75″ golf ball size Emergency MngrOreana, IL7:57 PM CDTMacon County
- 1.75″ golf ball size Public1 NW Mount Zion, IL7:58 PM CDTMacon County
Picture via social media.
Showing the 12 largest of 62 hail reports filed that day.
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.
Hail elsewhere on March 31, 2024
The full US hail map for March 31, 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 March 31, 2024
NOAA radar put hail of an inch or more over 1 Illinois city that day. The largest stones — 1.00 inches, quarter size — were over Decatur. Every city hit is listed above with its own stone size.