Franklin County
Population 36,916 (2025) 409 sq mi
Property owners in Franklin County have filed 60 federal flood insurance claims since 1978, 58th most of 102 counties in Illinois.
Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed
- Tornado damage paths since 195020
- Tropical cyclone tracks within 100 miles since 1851, wider where stronger1
At a glance
The record for Franklin County in eight numbers. Each links to its section below.
Tornadoes since 1950
20
75th of 102 in Illinois
Fewer than the typical Illinois county, which has had 30
DetailsTropical cyclones within 50 mi
1
Most of any of Illinois’s 102 counties
None at hurricane strength since 1851
DetailsStrongest tornado
EF4
February 28, 2017, 53.5 mile path
Strongest tropical cyclone
TS
Tropical storm (unnamed), 1941, 14.5 miles away
Tornadoes
About one every 3.8 years since 1950, 4 of them rated F3/EF3 or stronger.
Strongest
February 28, 2017
EF4, 53.5 mile path
1,100 yards wide; 1 killed along the whole path.
Deadliest
December 18, 1957
11 killed, F4
200 injured along the whole path.
Most recent
Wednesday, March 30, 2022
EF0, 4.0 mile path
4 years ago.
Every recorded tornado
| Mar 30, 2022 | EF0 | 4.0 | 0 | 0 |
| Dec 5, 2021 | EF1 | 3.9 | 0 | 0 |
| Feb 28, 2017 | EF4 | 53.5 | 12 | 1 |
| May 11, 2016 | EF0 | 0.1 | 0 | 0 |
| Jun 19, 2015 | EF1 | 0.9 | 0 | 0 |
| Jan 29, 2013 | EF0 | 0.6 | 0 | 0 |
| Apr 19, 2011 | EF1 | 0.1 | 0 | 0 |
| Apr 19, 2011 | EF1 | 0.3 | 0 | 0 |
| Jun 8, 2009 | EF1 | 4.8 | 0 | 0 |
| May 8, 2009 | EF1 | 5.5 | 0 | 0 |
| May 8, 2009 | EF0 | 0.3 | 0 | 0 |
| May 25, 2004 | F0 | 0.5 | 0 | 0 |
| Nov 10, 2002 | F0 | 0.5 | 0 | 0 |
| Apr 19, 1996 | F1 | 2.5 | 0 | 0 |
| Apr 27, 1994 | F1 | 1.0 | 1 | 0 |
| Jan 7, 1989 | F0 | 0.5 | 0 | 0 |
| Apr 27, 1971 | F3 | 4.5 | 20 | 1 |
| Feb 9, 1960 | F2 | 24.0 | 1 | 0 |
| Apr 5, 1958 | F3 | 20.6 | 11 | 0 |
| Dec 18, 1957 | F4 | 28.3 | 200 | 11 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Franklin County: 1.
- Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.
Storm Prediction Center severe weather database, 1950 to 2025.
Hurricanes and tropical storms
1 passed within 50 miles since 1851; none at hurricane strength.
Strongest within 50 miles
September 25, 1941
Unnamed storm, Tropical storm
14.5 miles at closest approach, winds near 40 mph.
Most recent
October 26, 2019
Olga, Post-tropical
3.4 miles at closest approach.
Every storm within 100 miles
- Tropical storms and hurricanes (34 kt or more, still tropical) at closest approach. Post-tropical remnants with gale-force winds are listed but not counted. Direct: track within 50 miles; near: within 100 miles. Distance is measured to the county boundary for counties and to the city centre for cities, using positions interpolated hourly between HURDAT2 fixes.
National Hurricane Center HURDAT2, 1851 to 2025.
Wildfire and smoke
No large wildfire has been mapped here since satellite mapping began in 1984.
Smoke overhead
Smokiest year
2023: 59 days
Heavy smoke on 12 days in 2021, the most of any year.
Last 10 years
19.4 days a year
Medium or heavy smoke, 2016 to 2025.
2025
13 days
Medium or heavy smoke. 39 so far in 2026.
- A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.
NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.
Floods and flood insurance
60 federal flood insurance claims since 1979, with $549,000 paid.
Most claims in one year
2008: 11 claims
$163,000 paid.
2nd most
1996: 8 claims
$196,000 paid.
3rd most
1982: 6 claims
$9,633 paid.
Claims by ZIP code
| 62896 | 54 | $525,000 |
Flood events since 1996
- Flood86
- Flash Flood39
- Heavy Rain21
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.
River crests
Most severe crest
May 4, 2011
Big Muddy River at Plumfield, 34.68 ft
14.68 feet above the 20.0 ft flood stage; major flooding by today’s categories.
Most recent moderate or major crest
April 9, 2025
Big Muddy River at Plumfield, 28.21 ft
Moderate flooding.
River gauges
| Big Muddy River at Plumfield | 20.0 | 34.68 ft | 2 |
- Crests are the highest and the recent crests the National Weather Service lists for each river gauge in the county that has a flood stage, not every flood. Flood categories use each gauge's current flood stages; crests from before levees, dams or channel changes may not be comparable. Crests measured on an old datum are left out of the rankings.
NOAA National Water Prediction Service gauge records, retrieved October 30, 2026.
Drought
In severe drought or worse for 142 of 1,581 months since 1895 (9%); the longest spell lasted 19 months.
142
Months in severe drought or worse since 1895
69
Months in extreme drought
9%
Share of all months, severe or worse
31
Drought reports to the Weather Service since 1996
Lowest reading
March 1954
−6.38, extreme drought
Longest severe spell
19 months
August 1953 to February 1955.
Latest month
September 2026
−4.53, extreme drought
- The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.
NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.
Earthquakes
12 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 5.3 in 1968.
1
Magnitude 2.5+ inside the county since 1973
37
Magnitude 3+ within 50 miles since 1973
12
Magnitude 4+ within 50 miles since 1900
2
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
November 9, 1968
5 km SSW of Norris City, Illinois; 19.8 miles away, 9.8 miles deep.
Most recent, magnitude 3 or more
December 17, 2023
Magnitude 3.1
5 km WNW of Waltonville, Illinois; 7.7 miles away.
Every earthquake of magnitude 4 or more within 50 miles
| Apr 18, 2008 | 5.2 | 49.8 |
| Feb 5, 1994 | 4.2 | 34.2 |
| Apr 3, 1974 | 4.5 | 46.2 |
| Nov 9, 1968 | 5.3 | 19.8 |
| Nov 7, 1958 | 4.4 | 43.5 |
| Apr 9, 1955 | 4.3 | 36.3 |
| Apr 27, 1925 | 4.8 | 49.4 |
| Nov 26, 1922 | 4.8 | 12.1 |
| Mar 22, 1922 | 4.6 | 34.7 |
| Mar 22, 1922 | 4.8 | 34.7 |
| Aug 21, 1905 | 4.6 | 33.0 |
| Feb 8, 1903 | 4.4 | 10.6 |
- Earthquakes of magnitude 2.5 or more in the USGS Comprehensive Catalog since 1900. Within 50 miles means the epicentre lies within 50 miles of the county boundary (or inside the county).
- Small earthquakes were under-recorded before the modern seismic networks of the 1970s and are still missed in remote areas, so early decades read low. Magnitudes are as the catalogue reports them and mix scales (moment, local and body-wave).
USGS ANSS Comprehensive Earthquake Catalog, 1900 to present, retrieved October 30, 2026.
Severe weather and other events
962 events in the National Weather Service record, 911 of them since 1996.
71
Hail reports, 1 inch or larger
6
Hail, 2 inches or larger
141
Damaging gusts, 58 mph+
123
Winter weather events since 1996
84
Heat events since 1996
83
Cold events since 1996
Largest hail
March 5, 1955
3.00 inches
Strongest measured or estimated gust
October 19, 2025
96 mph
More event types since 1996
| Lightning | 3 | 0 |
| Dense fog and smoke | 102 | 0 |
Costliest events since 1996
- May 10, 1996Flash Flood$8.0 million
National Weather Service narrative
Very heavy rain fell over ground that was saturated since late April. Franklin County was declared a federal disaster area as a result of total damage since late April. The damage total listed for this event is a sum total for flooding since late April. Flooding of the West Frankfort water treatment plant caused about 700,000 dollars damage.
- May 8, 2009Thunderstorm Wind$6.0 million
National Weather Service narrative
Widespread damaging winds across southern Franklin County caused lots of power outages. At the peak of the outages, 49 percent of the county was without power. A state disaster declaration was granted for Franklin County. Among the hardest hit cities was West Frankfort. Peak winds were estimated around 60 mph at Benton, but from 80 to 90 mph around West Frankfort and near the Williamson County line. Thirteen homes were destroyed beyond repair. Damage assessments indicated 184 dwellings sustained damage countywide. Of that number, 114 sustained minor damage, and 70 needed moderate repairs. Numerous trees were blown down, blocking some of the main roads. Near the Williamson County…
- Apr 28, 1996Flash Flood$3.0 million
National Weather Service narrative
Extremely heavy rainfall amounts of about 8 inches in less than 24 hours caused severe flash flooding. Franklin County was declared a federal disaster area. Close to 100 people were evacuated from their homes by boat. A railroad berm near the West Frankfort sewage treatment plant gave way to rising water, resulting in catastrophic flooding in the city. Very few if any victims of the flash flooding had flood insurance. All flood victims and volunteers were encouraged to receive free tetanus shots. Water was 4 to 6 feet deep in some areas of the city, closing schools and halting most traffic. At one point, the only access into the city of West Frankfort was from Interstate 57.…
- Mar 18, 2008Flood$1.5 million
National Weather Service narrative
Residents were evacuated from their homes and taken to a shelter. Flooding was most serious in West Frankfort, where there were concerns about the safety of the drinking water. It was later determined that no contamination occurred. The city's sewer plant was shut down after it flooded. Most of the evacuations in West Frankfort were on the northwest side of town. Two structures on the south end of town received major damage, including a large business. Basement flooding rose to the floor joists of the first floor of several structures. A number of dogs drowned in flooded pens and doghouses, while many others were rescued. In Royalton, a woman was trapped in her house for more than…
- Feb 28, 2017Tornado$800,000
National Weather Service narrative
This large tornado entered Franklin County from Jackson County. The tornado originally formed near Perryville, Missouri. The most intense damage in Franklin County was located south of Mulkeytown, where the tornado was rated EF-3 based on a house that was swept clean off its foundation. Debris was thrown up to a mile downwind. The debris was shredded, with nothing larger than 2-by-4 wood pieces. However, the house was sitting on a block foundation, unattached to anything. Based on the lack of any anchors for the house, peak winds were estimated near 160 mph at this site. Most of the other damage in this rural area of Franklin County consisted of snapped trees, heavily damaged…
- Jun 19, 2015Tornado$500,000
National Weather Service narrative
A large two-story house sustained major damage, losing large portions of its roof and the front porch. A small storage shed and fencing was damaged. Near the beginning of the damage path, a garage lost most of its roof. Dozens of trees and tree limbs were broken or uprooted. At least one eyewitness saw the tornado, which began in a subdivision just west of Interstate 57 near West Frankfort. The tornado moved northwest before ending on the west side of County Road 6 near the Green River. The most intense winds were at the damaged large two-story house on County Road 6. Peak winds were estimated near 110 mph there.
- May 1, 2011Flood$500,000
National Weather Service narrative
Record flooding occurred on the Big Muddy River. At the Plumfield river gage, the river crested at 34.68 feet on the evening of May 3. This exceeded the old record set in 1961 by less than an inch. Illinois Route 148 was closed south of Zeigler, as was County Highway 11. A section of Illinois Route 149 was closed, along with Illinois Route 37 north of West Frankfort. About two dozen homes were flooded, mostly in the Mitchell Lake area of Denning Township. Between five and six feet of water entered some homes. A 62-year-old man was found clinging to a tree after ignoring barricades and driving into swift water on the morning of May 3. The man was treated for hypothermia at a local…
- Apr 27, 2002Thunderstorm Wind$250,000
National Weather Service narrative
A thunderstorm macroburst with peak winds from 80 to 90 MPH damaged numerous buildings. A few storage buildings and several weak structures such as barns were destroyed. The damage path length was about 3 miles, and the width was up to 880 yards. A lumberyard on Highway 148 was extensively damaged. Several large trees were uprooted. Two metal warehouses were damaged, a carport was destroyed, and a storage shed roof was damaged. A double wide mobile home was unroofed, and another mobile home had one side blown off.
- Jan 26, 2009Winter Storm, Franklin$250,000
National Weather Service narrative
A prolonged, major winter storm dumped 6 to 10 inches of sleet and snow north of a line from East Cape Girardeau through Vienna to the confluence of the Wabash and Ohio Rivers. This resulted in at least two dozen roof collapses and very difficult driving conditions. South of that line, at least one inch of ice accumulated, with locally around 1.5 inches of ice. This resulted in a federal disaster declaration due to widespread tree damage and power outages. Virtually 100 percent of Massac County in the southern tip of the state was without power. The vast majority of nearby Alexander, Pulaski, Pope, Hardin, and southern Johnson Counties lost power. A major 161,000 volt transmission…
- Jun 21, 2011Thunderstorm Wind$250,000
National Weather Service narrative
A microburst with peak winds around 90 mph caused major damage in Sesser. At least 100 homes were damaged in the small community, mostly by falling trees. The storm snapped or uprooted hundreds of trees, including about 100 in Sesser. At least eight utility poles were broken by fallen trees. A building under construction in Sesser was levelled. Some homes and businesses in and near Sesser lost shingles. Due to power outages and debris on roads, a curfew was issued for Sesser. All of the damage was in the northern part of town. An 18-foot camper at Wayne Fitzgerrell campground on Rend Lake was overturned, injuring one person. In Sesser, a man removing a tree from a roof was injured…
- Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.
NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.
Weather records
From Du Quoin 4 Se, 13.1 miles from the county’s population centre, with records from 1898.
- All-time high
- 113°F2 times, most recently Jul 25, 1934
- All-time low
- −22°FJan 13, 1912
- Warmest night
- 82°F3 times, most recently Jun 23, 2016
- Coldest day
- −3°FDec 22, 1989
- Wettest day
- 6.70 inNov 14, 1993
- Snowiest day
- 14.0 inJan 14, 1918
- Hottest year
- 2024mean 62.5°F
- Coldest year
- 1979mean 53.1°F
- Wettest year
- 201172.12 in
- Driest year
- 197121.85 in
- Snowiest season
- 41.0 in1917-18
Median first snow
December 14
Earliest: October 28, 1925
Median last snow
March 5
Latest: May 2, 1929
4 of 92 winters had no measurable snow.
Station Du Quoin 4 Se (USC00112483), 420 ft elevation, 13.1 miles from the population centre. Daily records from 1898 to October 24, 2026; 98.6% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.
NOAA NCEI Global Historical Climatology Network Daily.
Federal disaster declarations
10 since 1953. The most recent: Covid-19 Pandemic, March 26, 2020.
| Mar 26, 2020 | Biological | DR-4489-IL |
| Mar 13, 2020 | Biological | EM-3435-IL |
| Jun 7, 2011 | Severe Storm | DR-1991-IL |
| Jul 2, 2009 | Severe Storm | DR-1850-IL |
| Sep 7, 2005 | Hurricane | EM-3230-IL |
| Feb 1, 2005 | Snowstorm | EM-3199-IL |
| May 21, 2002 | Tornado | DR-1416-IL |
| May 6, 1996 | Severe Storm | DR-1112-IL |
| Jun 6, 1983 | Severe Storm | DR-684-IL |
| Apr 26, 1973 | Flood | DR-373-IL |
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.
How this compares
Where Franklin County stands among 102 counties in Illinois and 3,143 in the United States.
| Tornadoes since 1950 | 20 | 75 / 102 |
| Tornadoes rated F3/EF3 or stronger | 4 | 16 / 102 |
| Tropical cyclones within 50 mi | 1 | 1 / 102 |
| Hurricane-strength passes within 50 mi | 0 | — |
| Wildfire acres since 1984 | 0 | — |
| Flood insurance claims | 60 | 58 / 102 |
| Flood insurance paid | $549,000 | 58 / 102 |
| Disaster declarations | 10 | 64 / 102 |
| Flood events since 1996 | 146 | 8 / 102 |
| Hail and wind events since 1996 | 317 | 35 / 102 |
| Winter storm events since 1996 | 123 | 16 / 102 |
| Reported damage since 1996 | $25.9 million | 30 / 102 |
| River crests at major flood stage | 2 | 51 / 102 |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 142 | 37 / 102 |
| Medium or heavy smoke days a year, last 10 years | 19.4 | 82 / 102 |
| Earthquakes M4+ within 50 mi since 1900 | 12 | 15 / 102 |
| Earthquakes M2.5+ in the county since 1973 | 1 | 28 / 102 |
Neighbouring counties
| Hamilton County | 13 | 1 |
| Jackson County | 40 | 1 |
| Jefferson County | 33 | 1 |
| Perry County | 24 | 1 |
| Saline County | 19 | 1 |
| Williamson County | 23 | 1 |
Sources and vintage
Every number on this page comes from these public records.
- Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
- Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
- Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
- Storm events NOAA NCEI Storm Events Database, through 2026.
- Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
- Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
- Weather records NOAA NCEI Global Historical Climatology Network Daily, station USC00112483.
- River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
- Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
- Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
- Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.
Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.