Hail in Iroquois County, Illinois

Hail in Iroquois County, Illinois: 73 recorded events between 1960 and 2024. The strongest on record measured 3. That places the county #1,821 nationally and #63 statewide for this hazard.

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

The busiest decade for hail in Iroquois County is the 2000s, when 25 of the county's 73 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 Iroquois County archive, hail makes up 16.9% of all recorded severe weather across 8 hazard types. Nationally the county sits at #1,821 for this hazard and #63 within Illinois, putting it in the 41.3 percentile of all U.S. counties.

Jun is the peak month for hail in Iroquois County with 20 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 233
• Tornado 61

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

73 hail events are recorded in Iroquois County between 1960 and 2024, causing 0 direct deaths.

What is the strongest hail recorded in Iroquois County?

The strongest hail on record in Iroquois County measured 3.

Where does the hail data for Iroquois 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.