Severe Weather History


Hazard archive · 1950 — present

Tornado in Mason County, Illinois

42

Recorded events

1

Direct deaths

35

Direct injuries

$6.4M

Property damage

Tornado in Mason County, Illinois: 42 recorded events between 1951 and 2026. The strongest on record measured F3. That places the county #567 nationally and #28 statewide for this hazard.

Decade by decade

Tornado in Mason County, Illinois: events per decade

Tornado in Mason County, Illinois: recorded events per decade
Tornado in Mason County, Illinois: recorded events per decade

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

The busiest decade for tornado in Mason County is the 1990s, when 8 of the county's 42 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, tornado makes up 15.7% of all recorded severe weather across 6 hazard types. Nationally the county sits at #567 for this hazard and #28 within Illinois, putting it in the 80.4 percentile of all U.S. counties.

Seasonality

Events by month

2Jan
0Feb
6Mar
9Apr
5May
5Jun
2Jul
3Aug
2Sep
0Oct
4Nov
4Dec

Apr is the peak month for tornado in Mason County with 9 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.

Tornado tracks

Paths crossing this county

DateScalePath lengthMax widthOrigin
1967-01-24EF35.1 mi80 ydTouched down here
1995-05-13EF325.0 mi880 ydTouched down here
1968-05-15EF312.6 mi600 ydTouched down here
2003-05-10EF22.5 mi100 ydTouched down here
1998-04-07EF23.0 mi70 ydTouched down here
1998-04-07EF211.0 mi30 ydCrossed in
1996-04-19EF29.0 mi250 ydTouched down here
1975-11-29EF218.6 mi10 ydTouched down here
1957-03-14EF20.1 mi100 ydTouched down here
1951-11-13EF247.4 mi50 ydTouched down here
Source: NOAA SPC SVRGIS tornado tracks · path geometry intersected with county boundaries

Significant events

Deadliest on record

DateLocationScaleDeathsInjuriesDamage
Jan 24, 1967F313$25K
May 15, 1968F3025$2.5M
Dec 4, 1973F002$0
Apr 15, 2011POPLAR CITYEF101$300K
May 11, 2003MANITOF201$0
Apr 19, 1996BATHF201$0
Jan 24, 1967F101$0
Dec 18, 1957F101$25K
Source: NOAA/NCEI Storm Events · dates UTC

Most recent

Latest recorded events

DateLocationMagnitudeDamage
Mar 10, 2026FOREST CITYEF1$0
Mar 10, 2026CHAUTAUQUA PARKEF1$0
Sep 20, 2025LUTHEREF0$0
Jun 18, 2025MASON CITYEF0$0
Aug 1, 2022NATRONAEF0$0
Mar 6, 2022BIGGSEF0$0
Mar 24, 2021MASON CITYEF0$25K
Dec 1, 2018POPLAR CITYEF1$65K
Dec 1, 2018SNICARTEEF0$0
Mar 7, 2017EASTONEF1$150K
Source: NOAA/NCEI Storm Events · dates UTC · recent entries may be preliminary

Other hazards here

More from Mason County

County overview →

From the record

What the reports say

Written by National Weather Service staff at the time of the event · public domain

Quick answers

Frequently asked

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

42 tornado events are recorded in Mason County between 1951 and 2026, causing 1 direct deaths.

What is the strongest tornado recorded in Mason County?

The strongest tornado on record in Mason County measured F3.

Where does the tornado 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.

Cite this page

“Tornado in Mason County, Illinois.” Severe Weather History. severeweatherhistory.com/county/illinois/mason-county/tornado/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.


Historical reference only — for official alerts visit weather.gov