Hail in Stephenson County, Illinois

Hail in Stephenson County, Illinois: 135 recorded events between 1972 and 2026. The strongest on record measured 3. That places the county #1,050 nationally and #33 statewide for this hazard.

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

The busiest decade for hail in Stephenson County is the 2000s, when 45 of the county's 135 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 Stephenson County archive, hail makes up 26.1% of all recorded severe weather across 8 hazard types. Nationally the county sits at #1,050 for this hazard and #33 within Illinois, putting it in the 66.3 percentile of all U.S. counties.

Apr is the peak month for hail in Stephenson County with 37 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 261
• Flash Flood 40

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

135 hail events are recorded in Stephenson County between 1972 and 2026, causing 0 direct deaths.

What is the strongest hail recorded in Stephenson County?

The strongest hail on record in Stephenson County measured 3.

Where does the hail data for Stephenson 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.