Hail in Lake County, Illinois

Hail in Lake County, Illinois: 185 recorded events between 1963 and 2025. The strongest on record measured 2.75. That places the county #704 nationally and #20 statewide for this hazard.

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

The busiest decade for hail in Lake County is the 2000s, when 69 of the county's 185 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 Lake County archive, hail makes up 28.9% of all recorded severe weather across 9 hazard types. Nationally the county sits at #704 for this hazard and #20 within Illinois, putting it in the 77.3 percentile of all U.S. counties.

Apr is the peak month for hail in Lake County with 56 recorded events, while Feb 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 299
• Flash Flood 47
• Flood 41

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

185 hail events are recorded in Lake County between 1963 and 2025, causing 0 direct deaths.

What is the strongest hail recorded in Lake County?

The strongest hail on record in Lake County measured 2.75.

Where does the hail data for Lake 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.