Hail history for Clark County, Illinois
Every NOAA hail report filed in Clark County since 1958, with preliminary National Weather Service reports to November 3, 2026.
Readout · Clark County
- Last hail
- Aug 11, 2026
- 1.00 in, quarter size · preliminary
- Hail days, last 5 years
- 8
- since Nov 3, 2021 · 12 reports
- Largest ever
- 2.50 in
- tennis ball · Nov 18, 2025
66 reports on 46 days since 1958 · #69 of 103 Illinois counties
Hail map · Clark County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
Roof damage after hail? Get a free inspection
Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Clark County is from August 11, 2026. A local roofer can check and document it at no cost.
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What the record says about Clark County
The latest hail report in Clark County is from August 11, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 8 separate hail days; the biggest stones in that time were 2.50 in on November 18, 2025.
Over the 20 years 2006–2025, Clark County logged 37 reports on 25 hail days, about 1.9 reports a year. That is 29% less than the median Illinois county (2.6 a year) and ranks #69 of 103 Illinois counties for all-time reports. Clark County holds 1% of all 12,418 hail reports in Illinois.
2% of reports with a size were 2 inches (hen egg) or larger, against 5% for the median Illinois county. The largest hail on record here is 2.50 in (tennis ball) on November 18, 2025 near 2.07 S Moriah.
Reports were down 72% in 2016–2025 (8) compared with 2006–2015 (29). The busiest year was 2011, with 12 reports on 6 days. Hail here peaks in May (35% of reports); 62% fall between April and June.
Reports a year 2006–2025 average
- Clark County 1.9
- Median Illinois county 2.6
Hail days 2006–2025
- Clark County 25
- Median Illinois county 34
Share 2 in or larger of sized reports
- Clark County 2%
- Median Illinois county 5%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 3 | 3 | 1 | 1 | 8 | ||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 2 | 2 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 11, 2026 | 1 | 1.00 in | View |
| Jul 4, 2026 | 1 | 0.88 in | — |
| Mar 22, 2026 | 3 | 1.00 in | — |
| Feb 19, 2026 | 3 | 1.00 in | — |
| Nov 18, 2025 | 1 | 2.50 in | — |
| Mar 13, 2024 | 1 | 1.25 in | — |
| May 26, 2022 | 1 | 1.00 in | — |
| May 14, 2022 | 1 | 0.88 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Nov 18, 2025 | 2.50 intennis ball | 2.07 S Moriah | 13:25 local · NCEI |
| May 27, 2019 | 1.75 ingolf ball | 2.28 S Marshall | 16:05 local · NCEI |
| Mar 2, 2012 | 1.75 ingolf ball | Westfield | 08:39 local · NCEI |
| Mar 2, 2012 | 1.75 ingolf ball | Westfield | 08:29 local · NCEI |
| May 21, 2010 | 1.75 ingolf ball | 2 SW Marshall | 12:22 local · NCEI |
Size of every report
- Under 1 in 22 33%
- 1–2 in 43 65%
- 2 in + 1 2%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Aug 11, 2026 | 1.00 inquarter | Martinsville | 22:28 UTC · NWS prelim. |
| Jul 4, 2026 | 0.88 innickel | 2.12 SW Moriah | 16:38 local · NCEI |
| Mar 22, 2026 | 1.00 inquarter | Casey Muni Arpt | 18:52 local · NCEI |
| Mar 22, 2026 | 1.00 inquarter | Clarksville | 18:45 local · NCEI |
| Mar 22, 2026 | 1.00 inquarter | 0.69 N Westfield | 18:45 local · NCEI |
| Feb 19, 2026 | 0.88 innickel | 0.54 W York | 16:39 local · NCEI |
| Feb 19, 2026 | 1.00 inquarter | 0.69 S Martinsville | 16:16 local · NCEI |
| Feb 19, 2026 | 1.00 inquarter | 0.87 NW Casey | 16:04 local · NCEI |
| Nov 18, 2025 | 2.50 intennis ball | 2.07 S Moriah | 13:25 local · NCEI |
| Mar 13, 2024 | 1.25 inhalf dollar | 1 N Marshall | 20:41 local · NCEI |
| May 26, 2022 | 1.00 inquarter | 2 NNE Marshall | 13:47 local · NCEI |
| May 14, 2022 | 0.88 innickel | 2 E Casey | 17:30 local · NCEI |
Cities and towns in Clark County
| Place | Reports | Largest |
|---|---|---|
| Marshall | 20 | 1.75 in |
| Martinsville | 15 | 1.75 in |
| Casey | 11 | 1.75 in |
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| Westfield | 5 | 4 | Mar 22, 2026 |
Questions about hail in Clark County
How often does it hail in Clark County, Illinois?
66 hail reports have been logged in Clark County since 1958. Over the 20 years 2006–2025 that averages 1.9 reports a year. That ranks #69 of 103 Illinois counties by number of reports.
When is hail season in Clark County?
Most reports come in May, March, June. May alone accounts for 35% of all reports.
What is the largest hail recorded in Clark County?
2.50 in (tennis ball size) on November 18, 2025 near 2.07 S Moriah. 2% of reports here were 2 inches or larger.
When did it last hail in Clark County?
The most recent report in this data is from August 11, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Clark County had in the last five years?
8 separate days with hail reports since November 3, 2021, adding up to 12 reports. The most recent was August 11, 2026.
Where does this hail data come from?
Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.