Darke County
Population 51,520 (2025) 598 sq mi
Property owners in Darke County have filed 35 federal flood insurance claims since 1978, 77th most of 88 counties in Ohio.
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 195033
At a glance
The record for Darke County in eight numbers. Each links to its section below.
Strongest tornado
EF3
March 14, 2024, 41.3 mile path
Snowiest season
61.2in
Winter of 1977-78
Tornadoes
About one every 2.3 years since 1950, 5 of them rated F3/EF3 or stronger.
Strongest
March 14, 2024
EF3, 41.3 mile path
700 yards wide; 1 killed along the whole path.
Most recent
Friday, April 25, 2025
EF0, 0.1 mile path
Within the past year.
Every recorded tornado
| Apr 25, 2025 | EF0 | 0.1 | 0 | 0 |
| May 7, 2024 | EF1 | 11.7 | 0 | 0 |
| Mar 14, 2024 | EF3 | 41.3 | 39 | 1 |
| Mar 31, 2023 | EF0 | 5.9 | 0 | 0 |
| Jun 8, 2022 | EF1 | 2.5 | 0 | 0 |
| Mar 6, 2022 | EF0 | 2.9 | 0 | 0 |
| May 27, 2019 | EF3 | 10.5 | 1 | 0 |
| May 27, 2019 | EF1 | 0.5 | 0 | 0 |
| May 27, 2019 | EF1 | 1.4 | 0 | 0 |
| Apr 25, 2019 | EF0 | 1.0 | 0 | 0 |
| Aug 20, 2016 | EF0 | 4.7 | 0 | 0 |
| Mar 14, 2016 | EF1 | 2.2 | 0 | 0 |
| Mar 14, 2016 | EF0 | 0.8 | 0 | 0 |
| Dec 23, 2015 | EF0 | 0.0 | 0 | 0 |
| May 26, 2011 | EF0 | 0.1 | 0 | 0 |
| Oct 26, 2010 | EF1 | 4.3 | 0 | 0 |
| Aug 19, 2009 | EF0 | 0.1 | 0 | 0 |
| Sep 26, 2003 | F1 | 0.8 | 0 | 0 |
| Jun 15, 1998 | F0 | 0.2 | 0 | 0 |
| Jun 30, 1993 | F2 | 7.0 | 0 | 0 |
| Jun 30, 1993 | F2 | 5.0 | 0 | 0 |
| Nov 22, 1992 | F3 | 20.0 | 21 | 0 |
| Jun 18, 1992 | F0 | 0.1 | 0 | 0 |
| Jun 21, 1981 | F1 | 2.3 | 0 | 0 |
| Apr 8, 1980 | F2 | 1.0 | 0 | 0 |
| Jul 2, 1978 | F0 | 27.5 | 0 | 0 |
| Apr 1, 1974 | F0 | 0.2 | 0 | 0 |
| Jun 19, 1973 | F0 | 0.5 | 0 | 0 |
| May 16, 1965 | F1 | 1.0 | 2 | 0 |
| May 27, 1963 | F2 | 1.0 | 0 | 0 |
| Jul 28, 1961 | F3 | 20.2 | 2 | 0 |
| Jun 9, 1958 | F1 | 0.1 | 0 | 0 |
| Nov 15, 1955 | F3 | 21.0 | 8 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Darke County: 0.
- 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
No tropical storm or hurricane has tracked within 100 miles since records began in 1851.
Wildfire and smoke
No large wildfire has been mapped here since satellite mapping began in 1984.
Smoke overhead
Smokiest year
2023: 56 days
Heavy smoke on 15 days in 2023, the most of any year.
Last 10 years
18.2 days a year
Medium or heavy smoke, 2016 to 2025.
2025
13 days
Medium or heavy smoke. 38 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
35 federal flood insurance claims since 1982, with $238,000 paid.
Most claims in one year
1989: 5 claims
$9,449 paid.
Claims by ZIP code
| 45331 | 17 | $159,000 |
| 45380 | 8 | $9,449 |
| 45304 | 7 | $30,000 |
Flood events since 1996
- Flood58
- Flash Flood30
- Heavy Rain3
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.
Drought
In severe drought or worse for 107 of 1,581 months since 1895 (7%); the longest spell lasted 15 months.
107
Months in severe drought or worse since 1895
39
Months in extreme drought
7%
Share of all months, severe or worse
2
Drought reports to the Weather Service since 1996
Lowest reading
March 1935
−6.09, extreme drought
Longest severe spell
15 months
June 1934 to August 1935.
Latest month
September 2026
+4.49, extremely wet
Last severe month: August 2012.
- 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
5 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 5.4 in 1937.
0
Magnitude 2.5+ inside the county since 1973
3
Magnitude 3+ within 50 miles since 1973
5
Magnitude 4+ within 50 miles since 1900
2
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
March 9, 1937
Near Anna, Ohio; 11.4 miles away, 1.9 miles deep.
Most recent, magnitude 3 or more
April 17, 1990
Magnitude 3.0
8 km NW of Fort Recovery, Ohio; 7.8 miles away.
Every earthquake of magnitude 4 or more within 50 miles
| Jul 12, 1986 | 4.5 | 13.1 |
| Mar 9, 1937 | 5.4 | 11.4 |
| Mar 2, 1937 | 5.0 | 12.6 |
| Sep 20, 1931 | 4.7 | 10.1 |
| Sep 30, 1930 | 4.2 | 8.0 |
- 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
650 events in the National Weather Service record, 550 of them since 1996.
49
Hail reports, 1 inch or larger
3
Hail, 2 inches or larger
186
Damaging gusts, 58 mph+
139
Winter weather events since 1996
5
Heat events since 1996
5
Cold events since 1996
Largest hail
May 26, 1962
2.75 inches
Strongest measured or estimated gust
July 20, 2011
90 mph
More event types since 1996
| Lightning | 2 | 0 |
Costliest events since 1996
- Sep 14, 2008High Wind, Darke$6.2 million
National Weather Service narrative
Strong winds of 40 to 50 miles per hour were sustained for several hours. Gusts over 60 mph were common. Widespread damage occurred across the region, from trees being blown down on powerlines, to significant crop losses and structural damage.
- May 27, 2019Tornado$500,000
National Weather Service narrative
A tornado briefly touched down in and near the village of New Madison. Much of the damage was consistent with EF0 wind speeds, as numerous large tree branches were damaged and minor roof damage occurred to structures. There was some damage indicative of EF1 winds of around 90 mph, namely large sections of roof uplifted at a lumber yard barn storage building. Elsewhere through the village, there was brick damage to the front facade of a downtown business, in addition to broken windows and some uplift of roof material. Much of this damage was more indicative of EF0 winds.
- Mar 14, 2024Tornado$500,000
National Weather Service narrative
The tornado developed at 1850EST in Randolph County, Indiana, just south of Farmland. The tornado traveled east across Randolph County and entered Darke County, Ohio, at 1920EST, about 2.5 miles west-southwest of Hill Grove. ||As the tornado moved east across Darke County, it produced EF-1 damage at several locations, with winds estimated to be as high as 110 MPH. Some of the roads with the greatest impact in Darke County were Fisher Dangler Road, Fox Road, and Horatio Harris Creek Road. Several homes had partial roof removal, with debris scattered into tree lines and across adjacent fields. Two injuries were reported in Greenville Township.||The tornado entered Miami County at…
- Jan 6, 1996Winter Storm, Darke$500,000
National Weather Service narrative
The Blizzard of '96 developed near the Gulf Coast and moved up the East Coast. This massive system produced the greatest total and 24 hour snowfall at Greater Cincinnati\Northern Kentucky airport. This one storm brought 14.3 inches of snowfall to the airport which normally receives 23 inches for an entire season. The heaviest snow fell near the Ohio river in the extreme south. The worst blizzard conditions occurred over West Central areas as dry and powdery snow was blown around by high winds causing whiteouts. Some areas had more than 30 continuous hours of snowfall, and many people in Southern Ohio felt this was the worst winter storm since the Blizzard of '78. In Fayette…
- May 7, 2024Tornado$500,000
National Weather Service narrative
The tornado began near the intersection of Greenville-Nashville Road and New Madison-Coletown Road, where several trees were uprooted. The tornado continued northeast across State Route 502. Minor damage to homes and trees was observed on Daly Road west of Greenville. The width of the tornado increased significantly as the tornado entered Greenville. Numerous trees were snapped or uprooted within the Greenville Union Cemetery.||As the tornado continued through the north side of Greenville, the width of the circulation remained large, with expansive tree damage throughout the city. The majority of the wind damage to homes was fairly minor with shingles and siding removed at many…
- Nov 7, 1996Thunderstorm Wind$300,000
National Weather Service narrative
Numerous trees downed. Barns destroyed, three buildings toppled, and a roof blown off. Significant crop damage occurred from a microburst that slammed into a corn field.
- Mar 6, 2022Tornado$150,000
National Weather Service narrative
The first signs of damage with the tornado occurred near the intersection of OH-185 and Conover Road, where minor damage to a few trees and homes occurred. The tornado moved east-northeast and caused more significant damage to a few properties on Versailles Yorkshire Road, just south of Burns Road. At one property, two large barns were leveled and roof damage was observed to other structures. A home on the southeast corner of the Versailles Yorkshire Road and Burns Road intersection had a small amount of roofing material removed, along with more extensive shingle damage and a few trees uprooted. A car at this property was moved from its parked position and a piece of plywood was…
- May 27, 2019Tornado$100,000
National Weather Service narrative
The tornado initially touched down just inside the Ohio state line in southwest Darke County, about 2 miles south of the village of Hollansburg. Damage began as downed trees along with a barn roof and walls that were lifted and carried about 200 yards downwind on Hollansburg-Richmond Road. There was evidence of a convergent debris pattern and some evidence of back splatter, indicative of a tornado. The tornado continued over open fields until it destroyed another barn, just south of Moore Road, completely removing the roof and roof joists and collapsing exterior walls. There was also siding and awning damage to the home, as well as a large uprooted tree. The damage in this area…
- Jun 8, 2022Tornado$100,000
National Weather Service narrative
The tornado touched down in open farm fields to the west of Schnorf-Jones Road and immediately intensified and hit a farm, heavily damaging barns and outbuildings. The tornado continued east and crossed Red River-West Grove Road, where another farm was struck. At this location, a house received roof damage and several barns were damaged. The tornado lifted in a field east of Highway 49. Several people witnessed the tornado on the ground in this area, including video footage of debris being lifted from the ground.||Damage at the first farmstead was consistent with wind speeds of around 100 mph, or EF-1 damage. The second farmstead sustained damage consistent with wind speeds of around 75 mph.
- Sep 26, 2003Tornado$100,000
National Weather Service narrative
A brief tornado touched down across the extreme northern part of the county. One barn was destroyed, and another barn had its roof blown off. Two nearby silos sustained some damage. In total, nine farm buildings sustained damage from the tornado. Two nearby houses had minor structural damage. Winds were estimated to be near 80 mph.
- 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 Greenville Water Plant, 2.5 miles from the county’s population centre, with records from 1893.
- All-time high
- 105°FJul 21, 1934
- All-time low
- −33°FJan 19, 1994
- Warmest night
- 79°F4 times, most recently Jul 11, 1936
- Coldest day
- −13°FJan 19, 1994
- Wettest day
- 5.19 inAug 10, 1969
- Snowiest day
- 13.0 in2 times, most recently Feb 14, 2007
- Hottest year
- 1921mean 54.9°F
- Coldest year
- 1979mean 44.9°F
- Wettest year
- 201152.30 in
- Driest year
- 193419.88 in
- Snowiest season
- 61.2 in1977-78
Median first snow
November 29
Earliest: October 19, 1989
Median last snow
March 19
Latest: May 7, 1989
0 of 97 winters had no measurable snow.
Station Greenville Water Plant (USC00333375), 1,030 ft elevation, 2.5 miles from the population centre. Daily records from 1893 to October 27, 2026; 98.0% 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
13 since 1953. The most recent: Tornadoes, May 2, 2024.
| May 2, 2024 | Tornado | DR-4777-OH |
| Mar 31, 2020 | Biological | DR-4507-OH |
| Mar 13, 2020 | Biological | EM-3457-OH |
| Jun 18, 2019 | Tornado | DR-4447-OH |
| Jun 30, 2012 | Severe Storm | EM-3346-OH |
| Sep 13, 2005 | Hurricane | EM-3250-OH |
| Feb 15, 2005 | Severe Storm | DR-1580-OH |
| Jan 11, 2005 | Snowstorm | EM-3198-OH |
| Sep 19, 2004 | Severe Storm | DR-1556-OH |
| Jul 15, 2003 | Severe Storm | DR-1478-OH |
| Mar 14, 2003 | Severe Storm | DR-1453-OH |
| Jan 26, 1978 | Snowstorm | EM-3055-OH |
| Feb 2, 1977 | Snowstorm | EM-3029-OH |
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 Darke County stands among 88 counties in Ohio and 3,143 in the United States.
| Tornadoes since 1950 | 33 | 9 / 88 |
| Tornadoes rated F3/EF3 or stronger | 5 | 2 / 88 |
| Tropical cyclones within 50 mi | 0 | — |
| Hurricane-strength passes within 50 mi | 0 | — |
| Wildfire acres since 1984 | 0 | — |
| Flood insurance claims | 35 | 77 / 88 |
| Flood insurance paid | $238,000 | 79 / 88 |
| Disaster declarations | 13 | 50 / 88 |
| Flood events since 1996 | 91 | 31 / 88 |
| Hail and wind events since 1996 | 289 | 50 / 88 |
| Winter storm events since 1996 | 139 | 9 / 88 |
| Reported damage since 1996 | $11.2 million | 62 / 88 |
| River crests at major flood stage | 0 | — |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 107 | 64 / 88 |
| Medium or heavy smoke days a year, last 10 years | 18.2 | 20 / 88 |
| Earthquakes M4+ within 50 mi since 1900 | 5 | 2 / 88 |
| Earthquakes M2.5+ in the county since 1973 | 0 | — |
Neighbouring counties
| Jay County IN | 17 | 0 |
| Mercer County | 29 | 0 |
| Miami County | 36 | 0 |
| Montgomery County | 22 | 0 |
| Preble County | 17 | 0 |
| Randolph County IN | 22 | 0 |
| Shelby County | 8 | 0 |
| Wayne County IN | 21 | 0 |
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 USC00333375.
- 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.