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Hail in Brown County, Illinois
52 hail events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Hail.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
NCEI records 52 hail events in Brown County, Illinois, between 1950 and 2026, spread over 25 years.
May is the busiest month, with 14 of the recorded events. The last 20 years account for 24 events against 26 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.4% of the 12,331 hail events recorded in Illinois; its 17.0 per 100 square miles compares with 22.2 statewide.
10 of the hail reports with a recorded size were golf-ball size (1.75 inches) or larger; the largest recorded stone was 2.75 inches (baseball size).
Compared with Illinois
| Measure | Brown County | Illinois | US |
|---|---|---|---|
| Hail events since 1950 | 52 | 12,331 | 424,356 |
| Per 100 square miles | 17.0 | 22.2 | 12.0 |
| Per 10,000 residents | 81.0 | 9.7 | 12.8 |
| Deaths recorded | 0 | 0 | 29 |
| Busiest month | May | May | May |
By year
Seasonality
1Feb
4Mar
2Apr
9May
14Jun
11Jul
3Aug
2Sep
1Oct
4Nov
0Dec
1
Magnitude distribution
NWS hail-size descriptors
- under 1 in
- pea to quarter
- 1–1.74 in
- quarter to golf ball
- 1.75–2.74 in
- golf ball to baseball
- 2.75–3.99 in
- baseball to softball
- 4 in and larger
- softball and larger
Hail size in inches as recorded by NCEI; events without a size are not binned.
Recorded events
All 52 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 25 Jun 2024 | Hail | 1.00 in | — | — | — | — | County |
| 13 Jun 2024 | Hail | 1.00 in | — | — | — | — | County |
| 24 Jun 2023 | Hail | 1.00 in | — | — | — | — | County |
| 7 May 2023 | Hail | 1.75 in | — | — | — | — | County |
| 31 Mar 2023 | Hail | 2.00 in | — | — | — | — | County |
| 9 Jul 2021 | Hail | 2.75 in | $100K | — | — | — | County |
| 3 May 2021 | Hail | 1.50 in | — | — | — | — | County |
| 1 Dec 2018 | Hail | 1.00 in | — | — | — | — | County |
| 17 Jun 2017 | Hail | 1.75 in | — | — | — | — | County |
| 28 Feb 2017 | Hail | 1.00 in | — | — | — | — | County |
| 21 Jun 2014 | Hail | 1.00 in | — | — | — | — | County |
| 21 May 2014 | Hail | 1.00 in | — | — | — | — | County |
| 30 Oct 2013 | Hail | 1.00 in | — | — | — | — | County |
| 15 Jun 2013 | Hail | 0.88 in | — | — | — | — | County |
| 19 May 2013 | Hail | 1.00 in | — | — | — | — | County |
| 10 Jun 2011 | Hail | 1.00 in | — | — | — | — | County |
| 22 May 2011 | Hail | 0.88 in | — | — | — | — | County |
| 19 Apr 2011 | Hail | 0.88 in | — | — | — | — | County |
| 27 Feb 2011 | Hail | 0.75 in | — | — | — | — | County |
| 27 Feb 2011 | Hail | 1.00 in | — | — | — | — | County |
| 15 May 2009 | Hail | 0.75 in | — | — | — | — | County |
| 22 Jun 2008 | Hail | 1.00 in | — | — | — | — | County |
| 30 May 2008 | Hail | 0.75 in | — | — | — | — | County |
| 7 Jan 2008 | Hail | 1.00 in | — | — | — | — | County |
| 11 Mar 2006 | Hail | 0.88 in | — | — | — | — | County |
| 19 Sep 2005 | Hail | 1.00 in | — | — | — | — | County |
| 30 May 2004 | Hail | 0.88 in | — | — | — | — | County |
| 9 May 2003 | Hail | 1.75 in | — | — | — | — | County |
| 5 Apr 2001 | Hail | 0.75 in | — | — | — | — | County |
| 5 Apr 2001 | Hail | 1.25 in | — | — | — | — | County |
| 5 Apr 2001 | Hail | 0.75 in | — | — | — | — | County |
| 19 Apr 2000 | Hail | 0.75 in | — | — | — | — | County |
| 16 Apr 2000 | Hail | 1.50 in | — | — | — | — | County |
| 16 Apr 2000 | Hail | 1.25 in | — | — | — | — | County |
| 16 Apr 2000 | Hail | 0.88 in | — | — | — | — | County |
| 18 Aug 1999 | Hail | 1.00 in | — | — | — | — | County |
| 12 Aug 1999 | Hail | 0.88 in | — | — | — | — | County |
| 11 Feb 1999 | Hail | 1.00 in | — | — | — | — | County |
| 29 Oct 1998 | Hail | 0.75 in | — | — | — | — | County |
| 29 Oct 1998 | Hail | 1.75 in | — | — | — | — | County |
| 12 May 1998 | Hail | 1.25 in | — | — | — | — | County |
| 12 May 1998 | Hail | 2.75 in | — | — | — | — | County |
| 12 May 1998 | Hail | 1.75 in | — | — | — | — | County |
| 2 Jun 1996 | Hail | 0.75 in | — | — | — | — | County |
| 10 Apr 1995 | Hail | 0.75 in | — | — | — | — | County |
| 25 Jun 1994 | Hail | 1.00 in | — | — | — | — | County |
| 25 Jun 1994 | Hail | 1.75 in | $500 | — | — | — | County |
| 9 Jul 1992 | Hail | 1.75 in | — | — | — | — | County |
| 9 Jul 1992 | Hail | 1.00 in | — | — | — | — | County |
| 23 Oct 1991 | Hail | 0.75 in | — | — | — | — | County |
| 14 May 1985 | Hail | 0.75 in | — | — | — | — | County |
| 30 May 1974 | Hail | 0.75 in | — | — | — | — | County |
Questions and answers
How many hail events has Brown County had?
52 events in the NCEI Storm Events record between 1950 and 2026. Reporting of hail became far more complete after 1996, so early decades undercount.
When was the last recorded hail event in Brown County?
25 Jun 2024 (Hail, 1.00 in). Records reach NCEI about 120 days after the month ends.
What was the most damaging hail event recorded in Brown County?
The hail of 9 Jul 2021, with property damage estimated by NCEI at $100K.
How does Brown County compare with Illinois for hail?
17.0 events per 100 square miles against 22.2 statewide; the county holds 52 of the state's 12,331 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Hail hub and the county page.