Hail in Mason County, Illinois

Hail in Mason County, Illinois: 55 recorded events between 1966 and 2026. The strongest on record measured 2.75. That places the county #2,130 nationally and #83 statewide for this hazard.

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

The busiest decade for hail in Mason County is the 2000s, when 17 of the county's 55 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 Mason County archive, hail makes up 20.5% of all recorded severe weather across 6 hazard types. Nationally the county sits at #2,130 for this hazard and #83 within Illinois, putting it in the 31.0 percentile of all U.S. counties.

May is the peak month for hail in Mason County with 21 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 148
• Tornado 42

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

55 hail events are recorded in Mason County between 1966 and 2026, causing 0 direct deaths.

What is the strongest hail recorded in Mason County?

The strongest hail on record in Mason County measured 2.75.

Where does the hail data for Mason 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.