| August 1952 | Tornado (F2) | not stated | 1 killed, 13 hurt, $25,000,000 | no account filed |
| March 2006 | Tornado (F2) | Green Ridge | 1 killed, 6 hurt, $2,500,000 | F2 tornado touched down 6.5 miles east of Green Ridge at 1612 CST and moved northeast. The tornado caused the death of one woman...when the trailer she was fleeing was blown on top of her. Another 6 people were injured as well. Numerous homes suffered varying degrees of damage. The tornado lifted one mile southwest of Smithton at 1625 CST. |
| March 2006 | Tornado (F1) | Green Ridge | 1 killed, $450,000 | Tornado touched down at 2028 CST 2 miles northwest of green Ridge producing damage to trees. The tornado traveled northeast and crossed Highway 50 just west of Sedalia. It produced high end F0 damage to a Morton Building and to a farmstead. Low end F1 damage was noted to a home 3 miles north of Sedalia...just west of Highway 65...where a modular home lost its roof and a large calenabra on a broadcast tower was bent. The tornado damaged a total of 57 homes, with one being completely destroyed. The tornado lifted after this at 2042 CST. A 66 year old man injured in the tornado, died from his injuries on June 15th. |
| May 1977 | Tornado (F3) | not stated | 24 hurt, $25,000,000 | no account filed |
| May 1980 | Tornado (F3) | not stated | 23 hurt, $25,000,000 | no account filed |
| May 2011 | Tornado (EF2) | Sedalia | 20 hurt, $4,000,000 | At 1122CST an EF2 tornado touched down 2.7 miles south southeast of Sedalia. The tornado traveled north, and lifted 0.7 miles southeast of Sedalia at 1128CST. Heavy damage to several businesses, was observed along highway 65, with 70 mobile homes in two different mobile home parks, destroyed or heavily damaged. Several homes were also damaged or destroyed. A tanker truck was overturned. Power poles were snapped off. Twenty people suffered minor injuries. |
| April 1973 | Tornado (F2) | not stated | 8 hurt, $2,500,000 | no account filed |
| August 2010 | Thunderstorm Wind | Lamonte | 3 hurt, $500 | Three tents were blown over with three minor injuries reported, near the Grandstand at the Missorui State Fairgrounds. Thunderstorm wind gusts were estimated up to 60 mph. |
| May 2003 | Tornado (F0) | Sedalia | 2 hurt, $2,000 | Tornado from Johnson county continued into Pettis county, tracking north of Green Ridge and just south and southeast of Sedalia. Large concrete I-blocks were overturned and trees uprooted. Two men were slightly injured as they sought shelter in a shed east of Sedalia. |
| June 1970 | Tornado (F1) | not stated | 1 hurt, $25,000 | no account filed |
| April 2014 | Flash Flood | Dresden | 1 hurt | Highway T was closed due to several culvert washouts. One injury was also reported. |
| March 2006 | Hail | Sedalia | $2,000,000 | Extensive hail damage noted in Sedalia, where golfball hail piled up into 2 feet drifts. Many roofs in town had to be replaced. |
| October 2004 | Tornado (F1) | Houstonia | $300,000 | Tornado crossed into Pettis county near the intersection of F/BB/NN Highways. Two homes were damaged along Blackwater Chapel Road. Trees and power lines also down. Tornado then tracked northeast to Highway 127 just south of NN...where a shed was destroyed and grain bins damaged. Tornado proceeded to enter Saline county just west of K Highway. |
| June 1981 | Tornado (F1) | not stated | $250,000 | no account filed |
| July 1961 | Tornado (F1) | not stated | $250,000 | no account filed |
| November 1999 | Thunderstorm Wind | La Monte | $100,000 | Thunderstorm winds estimated at up to 80 mph tore across northwest Pettis County. A railroad crossing arm was snapped 1 mile north of LaMonte. Two miles east of Houstonia, a hog barn was destroyed, and a trailer home and a 2-story house sustained extensive damage. |
| April 1999 | Thunderstorm Wind | Sedalia | $75,000 | Thunderstorm winds knocked down a pole barn and several large signs; 7 vehicles were damaged |
| April 2001 | Tornado (F1) | La Monte | $50,000 | Tornado on the ground for 11 minutes, moving east. Two barns were destroyed, along with a chicken coop and vacant house. There were also several power poles downed. |
| June 1994 | Hail | Sedalia | $50,000 | Large hail fell on many locations in the north side of Sedalia and north of town. |
| September 1993 | Thunderstorm Wind | Sedalia | $50,000 | Wind gusts to 60 mph in Sedalia and 80 mph 3 miles west of Sedalia downed numerous trees and several power lines. |
| April 1995 | Thunderstorm Wind | Sedalia | $30,000 | Golf ball-sized hail fell in Sedalia, accompanied by winds up to 65 mph. |
| July 2004 | Thunderstorm Wind | Sedalia | $25,000 | Numerous trees blown down with 10 houses sustaining damage from falling trees. |
| May 1995 | Thunderstorm Wind | La Monte | $25,000 | Severe thunderstorms produced wind gusts up to 70 mph in both La Monte and Sedalia. Several large trees were blown down, and a television antenna was toppled just northwest of La Monte. |
| September 1992 | Tornado (F1) | not stated | $25,000 | no account filed |
| November 1988 | Tornado (F1) | not stated | $25,000 | no account filed |
| November 1988 | Tornado (F1) | not stated | $25,000 | no account filed |
| April 1982 | Tornado (F1) | not stated | $25,000 | no account filed |
| May 2013 | Tornado (EF1) | Lamonte | $20,000 | A supercell thunderstorm intensified as it moved into east Johnson County, MO near Knob Noster. Initially, strong, straight-line winds created minor damage in Knob Noster. As the storm continued to develop and move northeast, a tornado formed about 4 miles west-southwest of LaMonte, in extreme western Pettis County, at about 357 PM CST. The tornado, EF0 to EF1 at times, continued from this point to the northeast for approximately 14.5 miles, damaging numerous farm out-buildings, including two large chicken farms, before dissipating around 416 PM CST, around 2 miles north of Hughesville. Numerous trees also suffered damage. |
| June 2011 | Thunderstorm Wind | Sedalia | $20,000 | Thunderstorm wind gusts were estimated up to 70 mph. A roof came off one home and landed on another. |
| May 2000 | Lightning | Smithton | $20,000 | A tree struck by lightning fell on a house on O Highway north of Smithton. |
| June 1999 | Thunderstorm Wind | La Monte | $15,000 | Thunderstorm winds damaged a house and a barn and La Monte. |
| April 1995 | Hail | Sedalia | $15,000 | Golf ball-sized hail fell in Sedalia, accompanied by winds up to 65 mph. |
| July 2005 | Thunderstorm Wind | Sedalia | $10,000 | Tree fell on a car. |
| May 2000 | Lightning | Green Ridge | $10,000 | Lightning struck a transformer near Green Ridge. |
| May 2000 | Lightning | Sedalia | $10,000 | Lightning struck a transformer on the north side of Sedalia. |
| May 2000 | Thunderstorm Wind | Longwood | $10,000 | Thunderstorm wind gusts of 80 mph damaged property and trees in rural Pettis County. One homeowner reported that the glass had been blown out of a storm door, and outbuildings sustained minor damage. A second homeowner reported extensive shingle damage to his roof, and many uprooted or damaged trees on his property. Also, a hay feeder ring was found hundreds of yards from its original position, apparently carried by the thunderstorm winds. |
| June 2000 | Thunderstorm Wind | Sedalia | $10,000 | Winds estimated at 70 mph downed numerous large trees and power lines near Sedalia. |
| May 2010 | Tornado (EF0) | Sedalia | $8,000 | An EF0 tornado touched down at 17:46 CST about one mile southwest of Sedalia. The tornado was on the ground for 3 minutes, and lift at 17:49 CST, aorund a half mile southwest of Sedalia. Emergency manager reported some minor roof and shingle damage to 10 to 12 homes, in the Katy Trail Estates, just southeast of the intersection of Quisenberry Road and Highway Y. |
| September 2008 | Tornado (EF0) | Hughesville | $5,000 | A brief EF0 tornado was reported at 1644CST, near the intersection of Highway 65 and County Roads J and D. Minor damage was reported to one home. |
| March 2006 | Tornado (F0) | Sedalia | $5,000 | Gustnado briefly touched down and produced damage to an older barn. A power pole was sheared off near U.S. Highway 65. |
| July 2004 | Thunderstorm Wind | Smithton | $5,000 | Large trees and power lines down blocking several city streets. |
| July 2004 | Thunderstorm Wind | Sedalia | $5,000 | Garage destroyed by high winds. |
| May 2003 | Tornado (F0) | La Monte | $5,000 | Brief tornado touchdown reported by storm spotter with minor damage. |
| May 1995 | Thunderstorm Wind | Sedalia | $5,000 | Severe thunderstorms produced wind gusts up to 70 mph in both La Monte and Sedalia. Several large trees were blown down, and a television antenna was toppled just northwest of La Monte. |
| June 1994 | Hail | Sedalia | $5,000 | Large hail fell on many locations in the north side of Sedalia and north of town. |
| March 1993 | Thunderstorm Wind | Sedalia | $5,000 | The County Emergency Operations Center (EOC) reported a measured wind gust of 60 to 70 mph in the city of Sedalia. Some damage was reported. The Sedalia Police Department reported trees and telephone poles blown down north of the city along with a boat and trailer blown across the road. |
| March 1993 | Hail | Sedalia | $5,000 | The County Emergency Operations Center (EOC) reported a measured wind gust of 60 to 70 mph in the city of Sedalia. Some damage was reported. The Sedalia Police Department reported trees and telephone poles blown down north of the city along with a boat and trailer blown across the road. |
| March 1993 | Thunderstorm Wind | Sedalia | $5,000 | The County Emergency Operations Center (EOC) reported a measured wind gust of 60 to 70 mph in the city of Sedalia. Some damage was reported. The Sedalia Police Department reported trees and telephone poles blown down north of the city along with a boat and trailer blown across the road. |
| April 1993 | Hail | Sedalia | $5,000 | County officials reported hail covering the ground on the west side of the city of Sedalia. |
| April 1993 | Hail | Manila | $5,000 | Spotters reported golf ball-size hail in Manila. The Sedalia Police Department reported 0.75-inch-diameter hail also. |
| April 1993 | Hail | Sedalia | $5,000 | Spotters reported golf ball-size hail in Manila. The Sedalia Police Department reported 0.75-inch-diameter hail also. |
| April 1993 | Hail | Sedalia | $5,000 | One-inch-diameter hail was reported by the Pettis County EOC. Storm spotters also reported golf ball-size hail. |
| April 1993 | Hail | Hughesville | $5,000 | One-inch-diameter hail was reported by the Pettis County EOC. Storm spotters also reported golf ball-size hail. |
| February 2000 | Thunderstorm Wind | Houstonia | $5,000 | no account filed |
| August 2011 | Thunderstorm Wind | Sedalia | $3,000 | Numerous tents and power lines were reported to have been blown down at the State Fair grounds. |
| July 1995 | Thunderstorm Wind | not stated | $3,000 | County Emergency Management Director reported numerous trees and powerlines down and even some local building damage from thunderstorm winds gusting up to 60 mph. |
| December 1982 | Tornado (F1) | not stated | $2,500 | no account filed |
| June 1981 | Tornado (F1) | not stated | $2,500 | no account filed |
| April 1973 | Tornado (F3) | not stated | $2,500 | no account filed |
| June 2008 | Thunderstorm Wind | Sedalia | $2,000 | Shingles were blown off several roofs, and there were a few powerlines down in Sedalia. |