Hail in Clark County, Illinois

Hail in Clark County, Illinois: 64 recorded events between 1958 and 2026. The strongest on record measured 2.5. That places the county #1,968 nationally and #74 statewide for this hazard.

Reporting practice changed over time — early decades are undercounted, not calmer.

The busiest decade for hail in Clark County is the 2010s, when 29 of the county's 64 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.

Within the Clark County archive, hail makes up 27.6% of all recorded severe weather across 6 hazard types. Nationally the county sits at #1,968 for this hazard and #74 within Illinois, putting it in the 36.6 percentile of all U.S. counties.

May is the peak month for hail in Clark County with 23 recorded events, while Jan is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.

• Thunderstorm Wind 116

How many hail events are on record in Clark County, Illinois?

64 hail events are recorded in Clark County between 1958 and 2026, causing 0 direct deaths.

What is the strongest hail recorded in Clark County?

The strongest hail on record in Clark County measured 2.5.

Where does the hail data for Clark County come from?

All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.