| August 1969 | Tornado (F3) | not stated | 4 killed, 240 hurt, $2,500,000 | no account filed |
| April 1999 | Tornado (F4) | Blue Ash | 4 killed, 65 hurt, $82,000,000 | A tornado began with F2 intensity in Blue Ash in the northeast corner of the county. This tornado moved through Montgomery, Symmes Township, and Loveland before entering Warren county. The intensity of the tornado was F2 and F3 at many points along the track, intensifying to a low end F4 while in Montgomery. The width of the tornado ranged from 100 yards to 1/4 mile wide. Four fatalities occurred; two in a home and the other two in vehicles. About 91 homes and apartments were destroyed along with 37 businesses. Additionally, 197 homes and apartments suffered major damage with 477 others also incurring damage. Twenty six businesses had major damage with 18 others also incurring damage. |
| April 1974 | Tornado (F5) | not stated | 3 killed, 190 hurt | no account filed |
| July 2001 | Flash Flood | Countywide | 3 killed, $3,570,000 | 389 dwellings sustained damage due to flooding. Several businesses were flooded along Mill Creek in Sharonville. Two people, a young woman, 21, and her father, 48, died in their flooded basement in Fairfax, when Little Duck Creek flooded in their neighborhood. A young woman, 16, was swept away while attempting to escape a vehicle which had become trapped in high water on a bridge. Total estimate of public assistance is 3,565,315. |
| April 1974 | Tornado (F4) | not stated | 2 killed, 39 hurt, $250,000 | no account filed |
| August 2019 | Lightning | Cummingsville | 2 killed, 1 hurt, $1,000 | Three women were jogging in Spring Grove Cemetery when a thunderstorm rolled in. The women took cover under a large oak tree, but all three women were hit when lightning struck. One women was killed immediately, the other two were injured. A second women passed away five days later. F27UT. F55UT. |
| July 2003 | Thunderstorm Wind | Evendale | 2 killed, $5,000 | Two women were killed when a large tree fell on them at a family picnic. Trees were downed elsewhere throughout the county. |
| September 2000 | Lightning | Mack | 1 killed, 1 hurt | Lightning struck a tree at a catered birthday party, killing one and injuring another restaurant worker. |
| April 2001 | Lightning | Mt Washington | 1 killed, $50,000 | Lightning caused a house fire which led to the death of one person. |
| October 1977 | Tornado (F3) | not stated | 17 hurt, $2,500,000 | no account filed |
| June 1980 | Tornado (F1) | not stated | 15 hurt, $25,000,000 | no account filed |
| June 1990 | Tornado (F4) | not stated | 14 hurt, $25,000,000 | no account filed |
| June 1995 | Thunderstorm Wind | Forest Park | 6 hurt, $10,000 | A microburst struck the Surf Cincinnati Waterpark, breaking metal poles, destroying 20-foot wide umbrellas, and damaging several large tents. Four adults and two children received minor injuries while running for shelter. |
| July 2018 | Thunderstorm Wind | Hyde Park | 1 hurt, $20,000 | A large, dead tree was blown down, falling onto 4 cars. |
| August 2024 | Thunderstorm Wind | Golf Manor | 1 hurt, $10,000 | Two trees fell on two separate houses. One person was injured. |
| March 2011 | Thunderstorm Wind | Indian Hill Vlg | 1 hurt, $10,000 | A large tree was blown down onto a car. One person in the car was injured. |
| July 2003 | Thunderstorm Wind | Countywide | 1 hurt, $10,000 | Several trees were knocked down near Kilby and Campbell Roads in Harrison. A tree fell onto a house trailer near Harrison, causing some damage. A tree fell on an automobile in Madeira, injuring the driver. |
| March 2001 | Lightning | Cincinnati | 1 hurt | A woman was injured when lightning struck the building and went through electronic equipment into her phone headset. |
| June 1996 | Lightning | Blue Ash | 1 hurt | no account filed |
| April 2002 | Hail | Blue Ash | $5,000,000 | Major hail damage to homes, cars and buildings occurred in a swath from Montgomery and Blue Ash into Symmes Township and Loveland. |
| April 1994 | Thunderstorm Wind | Countywide | $5,000,000 | Trees down in Sharon Woods and other locations. At Tower Place, a shopping mall in downtown Cincinnati, a plate glass window was shattered during the storm. A number of boats were sunknown at Rivertowne Marina on the Ohio River after the wind dislodged the docks and blew the boats from their moorings. Many of the crafts were then bashed against the shore and destroyed. |
| April 1998 | Flash Flood | Countywide | $4,000,000 | Heavy rainfall caused numerous roads to be closed. Also, Mill Creek overflowed its banks near Sharonville and Evandale. Many areas businesses received major damage due to the flood waters. |
| August 2016 | Flash Flood | Elmwood Place | $3,500,000 | Three occupied basement apartments in Norwood reported at least six feet of water in them and were categorized as destroyed. Seventeen other properties (in Norwood, Cincinnati, and St. Bernard) had major damage, mostly to lower level units, which had two to seven feet of water in them. Eight of them were located on Paddock Road and two more on Tennessee Avenue. At these locations, furnaces, water heaters and mechanical equipment were lost. Many windows were broken and carpet, furniture and personal belongings were ruined.||Six businesses were affected to varying degrees. One business is still closed, while the other 5 were closed temporarily. Over 650 structures suffered some type of minor damage, many lost their furnace, water heater, and/or washer/dryer. ||Norwood Schools, Roger Bacon High School, St. Bernard Schools and Hyde Park Play School were closed due to flooding, but no long-term damage was reported. |
| May 2024 | Flash Flood | Idlewild | $500,000 | Three to four inches of rain fell across much of Hamilton County in about a two hour period during the late evening hours. This caused widespread areas of high water with water flowing across several roadways. Many homes and apartment complexes were flooded across the west and north sides of Cincinnati. Several high water rescues were also needed. |
| July 2016 | Thunderstorm Wind | Covedale | $500,000 | Extensive structural and tree damage occurred from the eastern portions of Westwood eastward into the Clifton area. Damage in this area was determined to be a result of straight-line winds.||Some of the most significant damage from straight-line winds occurred in East Westwood along Westwood Northern Boulevard. Two brick two story apartment buildings were damaged. Much of the roof of one building was removed and a significant portion of the other was blown off and thrown behind the buildings. Some debris from the second level of the buildings was also tossed behind both buildings. In addition, several large tree branches were knocked down, and these branches were generally pointing toward the same direction.||To the east of Interstate 75 in the Clifton area, additional damage was surveyed. Much of the damage consisted of large healthy tree limbs being knocked down and a few evergreen trees being uprooted, particularly along Senator Avenue. Chimney damage was also noted on one home and a portion of the roof of a church on Clifton Avenue was also removed. Damage in the Clifton area exhibited a pattern consistent with straight-line winds which likely were in the 90 to 100 mph range. |
| July 2000 | Thunderstorm Wind | Springdale | $500,000 | A large supercell moved across the northeastern parts of the county causing widespread damage. Trees and/or power lines were downed in Springdale, Sharonville, Glendale, and Wyoming. A roof was blown off a manufactoring plant onto Interstate 75 in Lockland. In addition, three-quarter inch diameter hail occurred in Blue Ash and 1 inch diameter fell in Sharonville. |
| June 1994 | Thunderstorm Wind | Northern Half | $500,000 | Trees were downed in several locations. Lightning strikes caused several signifcant fires. |
| July 2001 | Flash Flood | Cleves | $400,000 | Several business throughout area were flooded. Interstate 74 was closed due to high water across roadway. |
| August 2016 | Flash Flood | Hyde Park | $350,000 | A ground-level apartment off of Maple Avenue was completely flooded. Thirty residents were displaced. |
| March 2017 | Tornado (EF0) | Mt Washington | $250,000 | The tornado first touched down between 4 Mile Road and Phillips Road in a heavily wooded ravine. Numerous trees were knocked down in the ravine. As the tornado moved east toward Phillips Road, several more trees were knocked down, one of which fell on a home and damaged the roof.||On Phillips Road, numerous homes were damaged by trees or large limbs that were tossed onto roofs. One of the more heavily damaged houses had a garage wall knocked down. Additionally, the house suffered roof and siding damage. A neighboring house lost 20 percent of the backside of its roof.||Between Phillips Road and Nimitz Lane, more trees were knocked down. Several of the trees fell onto homes on Nimitz Lane, causing roof damage. A very large tree was knocked down across Nimitz Lane, completely blocking the road.||The tornado lifted briefly, but touched down again on Birchdale Court, knocking trees down onto several homes and causing additional damage.||Once again the tornado lifted, and then touched down near the intersection of Burney Lane and Wetheridge Drive. A large property on Burney Lane had numerous trees knocked over or snapped. As the tornado moved eastward along Wetheridge Lane, more trees were knocked down, with several causing roof damage to houses. The path continued down to Chesterton Way, before the tornado finally lifted. |
| June 2013 | Thunderstorm Wind | Carthage | $250,000 | A tractor trailer was blown over in Roselawn near the intersection of Reading Road and Losantiville Avenue due to thunderstorm winds. Sections of roofing were blown off an apartment building across the street from the tractor trailer. Half of a roof was blown off the old social security building. |
| October 1977 | Tornado (F1) | not stated | $250,000 | no account filed |
| September 1975 | Tornado (F1) | not stated | $250,000 | no account filed |
| February 1956 | Tornado (F2) | not stated | $250,000 | no account filed |
| May 1954 | Tornado (F1) | not stated | $250,000 | no account filed |
| April 1999 | Tornado (F1) | Addyston | $200,000 | After touching down on the north shore of the Ohio River, the tornado destroyed a house, pulled a metal roof from a garage, and downed several trees. |
| July 1996 | Lightning | Blue Ash | $150,000 | no account filed |
| May 2022 | Thunderstorm Wind | Fernbank | $100,000 | Video from a boat showed a gustando moving north across the Ohio River, associated with a thunderstorms outflow boundary. As the gustnado moved onshore in the Sayler Park area, it downed numerous trees along Catalpa Road, Gracely Drive and Fernbank Avenue. Some of the trees fell on a few houses and caused some minor damage. Several power lines were also downed. |
| April 2020 | Tornado (EF0) | Bevis | $100,000 | The tornado first touched down in Colerain Township near Colerain Ave, where trees were reported knocked down along with minor damage to the YMCA Play Time Early Learning Center. The tornado continued east along or just north of Compton Road, uprooting trees. Further to the east, the tornado continued to produce tree damage and minor structural damage on Ranchill Drive, before moving into the center of Mt. Healthy. Numerous downed trees, leaning or broken transmission poles, and damage to several buildings marked the path of the tornado through Mt. Healthy following Compton Road. Tree and transmission pole damage continued east out of Mt. Healthy into Springfield Township. The tornado may have briefly become less organized before causing additional light structural damage and extensive tree damage from Winton Road through Hill Top Acres. Damage decreased quickly toward Ridgeview Drive, with the last sign of tornadic damage on Compton Road. The large number of snapped and uprooted trees with little to no leaves, snapped or leaning transmission poles, and minor structure damage led to a rating of EF-0 on the Enhanced Fujita Scale with winds around 85 MPH. |
| March 2017 | Flood | Cincinnati | $100,000 | Dozens of basements were flooding across Hamilton County due to high water. |
| November 2017 | Flash Flood | Cincinnati | $100,000 | Numerous roads were flooded throughout the Cincinnati area and some basements were flooded. Flooding also caused some damage at Reading High School and Whitaker Elementary School. |
| May 2003 | Flash Flood | Delhi | $100,000 | Water up to four feet in deep in homes caused numerous evacuations. More evacuations occurred in Fairfax near Little Duck Creek. Ten people had to be rescued by boat in that area. |
| February 2000 | Lightning | Cincinnati | $100,000 | Lightning struck a home causing a fire in the attic, which spread toward the second floor before being extinguished. Significant fire and water damage occurred to the home. |
| August 2000 | Thunderstorm Wind | Groesbeck | $100,000 | Severe thunderstorms remained across the county for nearly three hours causing around 5000 trees to be knocked down. The locations with the most trees down were Madisonville, Hyde Park, Mount Lookout and Mount Washington. Lunken Field Municipal Airport recorded a wind gust to 62 mph during the storm. Also, quarter size hail fell in Colerain and walnut size hail fell in Groesbeck. |
| August 1997 | Thunderstorm Wind | Countywide | $100,000 | Numerous trees and power lines were downed across the county by the thunderstorm winds. Lunken Field reported a wind gust to 60 mph. Moderate damage occurred to the Goodyear blimp "Spirit of Akron", which was parked at the airport at the time of the storm. |
| July 1997 | Hail | Delhi | $100,000 | Hail as large as baseballs fell across the southwestern part of the county. Windows and roofs were destroyed on numerous cars. Several buildings were damaged including an area greenhouse which had its roof destroyed. |
| August 2000 | Lightning | Cincinnati | $80,000 | Lightning struck a home causing a fire on the second floor. |
| May 1995 | Thunderstorm Wind | Countywide | $75,000 | Trees were downed in several locations, some across power lines. Golf ball-size hail fell in north Cincinnati, causing significant damage to a greenhouse. |
| January 1997 | Thunderstorm Wind | Cincinnati | $70,000 | no account filed |
| July 2019 | Flash Flood | Mack | $50,000 | Water was rushing across several roads in the Cheviot area. The COOP observer reported over 4 inches of rain in less than two hours. A few roads were partially washed out in the area. |
| August 2016 | Flash Flood | Evendale | $50,000 | Numerous reports of submerged vehicles in Roselawn, Bond Hill, Mt. Auburn, Reading, and East End. Some of the roadways flooded include: Glenmeadow Lane and Paddock Road at Tennessee Avenue. |
| May 2014 | Flash Flood | Ambereley | $50,000 | Businesses were flooded in the 7900 block of Reading Road due to heavy rainfall. |
| June 2003 | Flash Flood | Miamitown | $50,000 | Numerous roads were flooded and closed across northern and western portions of the county. Cars were stranded in high water, and many homes sustained basement flooding in Colerain Township. |
| June 2001 | Thunderstorm Wind | Countywide | $50,000 | Thunderstorms produced strong winds which knocked down numerous trees across the county. A tree fell on a church causing a hole in the roof. |
| August 2000 | Thunderstorm Wind | Countywide | $50,000 | Severe thunderstorms continued across the county knocking down numerous trees. |
| August 2000 | Thunderstorm Wind | Countywide | $50,000 | Severe thunderstorms began and lasted for nearly 3 hours, knocking down numerous trees. |
| July 1994 | Thunderstorm Wind | Blue Ash | $50,000 | Trees downed, at least one on a car. |
| July 1994 | Thunderstorm Wind | Cincinnati | $50,000 | Trees were downed. Ceiling tiles were ripped from a parking garage and at least one car was damaged. |
| August 1994 | Thunderstorm Wind | Ross Moyne | $50,000 | Trees down, one on a house. |
| August 1993 | Thunderstorm Wind | Mount Healthy | $50,000 | Trees downed, some on structures, cars, power lines, and roads. |
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![Proctor [i.e. Procter] and Gamble Distributing Company, Cincinnati, Ohio. Drums of glycerine ready for shipment](assets/locph_2017857186.jpg)
![Monument to William Cooper Proctor [i.e. Procter] outside the company's Ivorydale factory, now just a small chemical plant making ingredients for Tide detergent, in the heavily industrial Village of St. Bernard, a close-in suburb of Cincinnati, Ohio](assets/locph_2016632709.jpg)
