Hail in Washington County, Illinois

Hail in Washington County, Illinois: 134 recorded events between 1956 and 2025. The strongest on record measured 4.5. That places the county #1,057 nationally and #34 statewide for this hazard.

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

The busiest decade for hail in Washington County is the 2000s, when 53 of the county's 134 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 Washington County archive, hail makes up 41.1% of all recorded severe weather across 7 hazard types. Nationally the county sits at #1,057 for this hazard and #34 within Illinois, putting it in the 65.9 percentile of all U.S. counties.

Apr is the peak month for hail in Washington County with 35 recorded events, while Dec 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 141

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

134 hail events are recorded in Washington County between 1956 and 2025, causing 0 direct deaths.

What is the strongest hail recorded in Washington County?

The strongest hail on record in Washington County measured 4.5.

Where does the hail data for Washington 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.