Hail events in Mercer County, Illinois The hail events on record, by date and by year
This page is a county record of past events and claims. It does not show the flood zone or the risk of an address. For the flood map of an address, use FEMA's address search (opens in a new tab).
NCEI has 96 hail events on record for Mercer County, Illinois, from 1955 through 30 Jun 2026.
The newest hail event on record is on 10 Mar 2026.
From 2016 through 2025, NCEI has 20 hail events on record for the county.
The NWS collects event reports from a variety of sources, which include (but are not limited to): county, state, and federal emergency management officials, local law enforcement officials, SKYWARN spotters, NWS damage surveys, newspaper clipping services, the insurance industry, and the general public, among others.
The National Weather Service reports property and crop damage estimates using available data at the time of event reporting. These values should therefore be considered broad estimates. Damage amounts are not adjusted for inflation.
The words of the agency. Source: NOAA NCEI, Storm Events Database, page "Frequently Asked Questions", copied on .
Date of the data: NCEI storm events through . Event types on this page: Hail.
Newest hail events on record
Hail1.25 in, half dollar size
At SEATON
Hail1.00 in, quarter size
1 mile NW of VIOLA
Hail0.75 in, penny size
1 mile SE of SHERRARD
Hail1.00 in, quarter size
2 miles WNW of NORWOOD
Hail1.00 in, quarter size
4 miles WSW of NORTH HENDERSON
Hail1.00 in, quarter size
1 mile W of CABLE
Hail1.00 in, quarter size
1 mile W of SHERRARD
Hail0.88 in, nickel size
1 mile E of ALEDO
Hail0.88 in, nickel size
At ALEDO
Hail1.25 in, half dollar size
1 mile NE of ALEDO
Hail0.75 in, penny size
3 miles ENE of BURGESS
Hail1.25 in, half dollar size
1 mile W of ALEDO
Hail1.75 in, golf ball size
At ALEDO
Hail1.00 in, quarter size
At SHERRARD
Hail0.75 in, penny size
1 mile W of SHERRARD
Hail0.88 in, nickel size
1 mile NNE of BODEN
Hail0.75 in, penny size
2 miles E of NORWOOD
Hail1.25 in, half dollar size
2 miles ESE of MARSTON
Hail1.00 in, quarter size
3 miles SE of PREEMPTION
Hail0.75 in, penny size
1 mile W of KEITHSBURG
Hail1.00 in, quarter size
5 miles NNW of NEW BOSTON
Hail0.75 in, penny size
At KEITHSBURG
Hail1.00 in, quarter size
1 mile WNW of GRIFFIN
Hail1.00 in, quarter size
1 mile W of PREEMPTION
Hail1.50 in, ping-pong ball size
1 mile N of GINGLE CORNERS
A place is the text of the NCEI record: a distance and a direction from a reference place. The site does not show a place text that names a private property or reads as a person. Hail size is in inches, with the object that NCEI names for that size.
Hail events by year
| Decade | Year that ends in 0 | Year that ends in 1 | Year that ends in 2 | Year that ends in 3 | Year that ends in 4 | Year that ends in 5 | Year that ends in 6 | Year that ends in 7 | Year that ends in 8 | Year that ends in 9 | All |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1950s | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| 1960s | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 2 |
| 1970s | 0 | 1 | 0 | 1 | 2 | 3 | 0 | 1 | 0 | 0 | 8 |
| 1980s | 1 | 4 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 8 |
| 1990s | 0 | 1 | 0 | 0 | 0 | 4 | 1 | 0 | 0 | 1 | 7 |
| 2000s | 1 | 2 | 3 | 13 | 3 | 2 | 9 | 1 | 5 | 0 | 39 |
| 2010s | 1 | 0 | 1 | 2 | 5 | 1 | 1 | 2 | 0 | 2 | 15 |
| 2020s | 1 | 0 | 0 | 5 | 8 | 1 | 1 (part of the year) | 16 |
A darker cell has a larger count. The number is in each cell.
Hail events are on record from 1955. The year 2026 has the events through 30 Jun 2026 only.
By month, all years
- Jan0 events
- Feb4 events
- Mar6 events
- Apr38 events
- May16 events
- Jun12 events
- Jul5 events
- Aug11 events
- Sep3 events
- Oct1 event
- Nov0 events
- Dec0 events
Magnitudes on record
| Hail size | Size in words | Events |
|---|---|---|
| under 1 in | pea to quarter | 37 |
| 1 to 1.74 in | quarter to golf ball | 37 |
| 1.75 to 2.74 in | golf ball to baseball | 22 |
| 2.75 to 3.99 in | baseball to softball | 0 |
| 4 in and larger | softball and larger | 0 |
When listing hail size under Magnitude, e.g., 2.25 in., the hail size is given in inches and hundredths of inches. These values are assigned a size in inches from their appearance.
An event without a size in the record is not in this table.
Beside the other counties
| Measure | Mercer | All counties of Illinois | All counties of the United States |
|---|---|---|---|
| Hail events, 1955 to 2026 | 96 | 12,294 | 423,723 |
| Events for each 100 square miles | 17.1 | 22.1 | 12.0 |
| Events for each 10,000 residents | 61.6 | 9.7 | 12.8 |
The columns for the state and the United States total the counties. They count the events of each county in the same way as the county column. A forecast zone with another name than a county counts for the state only.
More hail events on record
| Date | Event type | Magnitude | Damage estimate | Deaths | Injuries | On record for |
|---|---|---|---|---|---|---|
| Hail | 1.75 in | none | 0 | 0 | County | |
| Hail | 1.75 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 1.00 in | none | 0 | 0 | County | |
| Hail | 0.88 in | none | 0 | 0 | County | |
| Hail | 0.88 in | none | 0 | 0 | County | |
| Hail | 0.88 in | none | 0 | 0 | County | |
| Hail | 0.88 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 0.88 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 1.00 in | $5 thousand | 0 | 0 | County | |
| Hail | 1.25 in | $20 thousand | 0 | 0 | County | |
| Hail | 0.88 in | none | 0 | 0 | County | |
| Hail | 1.00 in | $5 thousand | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 1.00 in | $5 thousand | 0 | 0 | County | |
| Hail | 1.00 in | $5 thousand | 0 | 0 | County | |
| Hail | 1.00 in | none | 0 | 0 | County | |
| Hail | 1.00 in | $2 thousand | 0 | 0 | County | |
| Hail | 1.00 in | $5 thousand | 0 | 0 | County | |
| Hail | 0.75 in | $5 thousand | 0 | 0 | County | |
| Hail | 0.75 in | $5 thousand | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 1.25 in | $18 thousand | 0 | 0 | County | |
| Hail | 1.75 in | $120 thousand | 0 | 0 | County | |
| Hail | 1.00 in | $100 thousand | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 1.25 in | $150 thousand | 0 | 0 | County | |
| Hail | 1.75 in | $350 thousand | 0 | 0 | County | |
| Hail | 1.75 in | $500 thousand | 0 | 0 | County | |
| Hail | 1.75 in | $500 thousand | 0 | 0 | County | |
| Hail | 1.75 in | $50 thousand | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 1.75 in | $500 thousand | 0 | 0 | County | |
| Hail | 1.75 in | $500 thousand | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 2.00 in | none | 0 | 0 | County | |
| Hail | 1.75 in | none | 0 | 0 | County | |
| Hail | 1.00 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 1.00 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 1.75 in | none | 0 | 0 | County | |
| Hail | 0.80 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 1.25 in | none | 0 | 0 | County | |
| Hail | 1.75 in | none | 0 | 0 | County | |
| Hail | 1.00 in | none | 0 | 0 | County | |
| Hail | 1.00 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 1.75 in | none | 0 | 0 | County | |
| Hail | 1.75 in | none | 0 | 0 | County | |
| Hail | 1.00 in | none | 0 | 0 | County | |
| Hail | 1.00 in | none | 0 | 0 | County | |
| Hail | 0.75 in | none | 0 | 0 | County | |
| Hail | 1.75 in | none | 0 | 0 | County | |
| Hail | 1.00 in | none | 0 | 0 | County | |
| Hail | 2.50 in | none | 0 | 0 | County | |
| Hail | 2.00 in | none | 0 | 0 | County | |
| Hail | 1.50 in | none | 0 | 0 | County | |
| Hail | 1.75 in | none | 0 | 0 | County | |
| Hail | 1.00 in | none | 0 | 0 | County | |
| Hail | 1.75 in | none | 0 | 0 | County | |
| Hail | 2.50 in | none | 0 | 0 | County |
The table has all other events on record. A damage figure is an estimate in the NCEI record.
Official channels
- NCEI Storm Events Database (opens in a new tab)Search the full NCEI record by state, county and date.
- National Weather Service: Quad Cities, IA/IL (opens in a new tab)The forecast office that issues the weather warnings for the county.
- FEMA Flood Map Service Center: Search By Address (opens in a new tab)Search an address to see its flood map. This site has no flood-zone data.
These links open the pages of the agencies. The site checked the links on .
Cite this page
County Hazards. "Hail events on record for Mercer County, Illinois". https://countyhazards.com/county/il/mercer/hail/. Data: NOAA NCEI Storm Events Database through 30 Jun 2026. Page made on .
Questions
- Which month has the most hail events on record for Mercer County?
- April has 38 of the 96 hail events on record from 1955 through 30 Jun 2026.
- How many hail events are on record for Illinois?
- NCEI has 12,331 hail events on record for Illinois from 1955 through 30 Jun 2026. That count has every forecast zone of the state.
- How does Mercer County compare with the other counties of Illinois?
- The counties of Illinois have 22.1 hail events for each 100 square miles. Mercer County has 17.1.
- How large is the hail on record for Mercer County?
- 22 hail events have a size of 1.75 inches or more. NCEI names 1.75 inches a golf ball.