| November 2017 | Tornado (EF2) | Galion | $750,000 | An EF1 tornado touched down in Galion near the intersection of Orange and Grand Streets. Many trees in the area were snapped or uprooted. The tornado continued east northeast across the city and damaged three homes as it crossed Union Street. Two of the homes lost some facia, siding and roofing but the third had a fallen tree damage a wall. A warehouse on Market Street lost a section of roofing. A second warehouse along Columbus Street also lost some roofing material. A few blocks to the east two homes were damaged on South Washington Street. One of the homes had it's roof detached and the second lost some roofing and siding material. The tornado then intensified to EF2 as it crossed the southern end of Pierce Street. At least four properties on Pierce Street were damaged. Three of the homes were classified as having major damage and had their roofs torn off in addition to having broken windows and lost siding. Two of the properties also had detached garages destroyed. The fourth house had a porch damaged. Significant damage also occurred a block to the east along Riblet Street. An auto repair shop lots it's roof and had three masonry walls collapse. Bricks from the building were found of the roofs of houses nearby. Three other commercial buildings on Riblet Street lost large sections of roofing. One of the three also sustained damage to an exterior wall. Four homes were damaged on the southern end of East Street. One of the homes sustained major damage in the form of a detached roof. The other three houses sustained lesser amounts of roof and siding damage. The tornado continued east for another block and finally lifted as it reached Walnut Street. Many trees, limbs and utility poles were downed along the damage path which was just over a mile in length and up to 200 yards in width. A total of 21 structures were damaged in Galion with one destroyed and five sustaining major damage. There were no injuries. |
| July 2013 | Flood | Galion | $200,000 | Seventeen days of consecutive rain brought widespread flooding to Crawford County. The hardest hit towns were Bucyrus and Crestline. In Bucyrus, the Sandusky River came out of its banks resulting flooding of the Harmon Park soccer complex, and surrounding homes on Clinton and Lane Streets. North Sandusky Ave and Water Street were closed. Elsewhere in the county numerous roads were closed and part of Ohio 19 and Brokensword were closed. Most of the county had received between 3.5 and 7 inches of rain over a 48 hour period, with the heaviest rain falling over Crestline. In Galion numerous roads were closed. |
| July 2013 | Flood | Galion | $80,000 | Widespread flooding was reported in eastern Crawford County. In Galion, the water inundated Heise Park as the Olentangy River tributaries were overwhelmed. Ohio 309 from North East Street at Chalres Street to Harding Way East was inundated and closed. A house on Olentangy Court was inundated in the first floor. In Bucyrus, it was the Sandusky River that came out of its banks flooding several basements. A vehicle was damaged as the driver entered flooded Knauss Road. North Sandusky Ave, River Street, Temple Road, and Bethel Roads were closed. All of this flooding was the result of 2 to 4 inches of rainfall from the evening of the 8th. |
| August 2004 | Thunderstorm Wind | Galion | $60,000 | Thunderstorm winds destroyed a garage and a small shed along Monnett-New Winchester Road west of Galion in Whetstone Township. A fence and many trees were also downed in the area. |
| June 2017 | Thunderstorm Wind | Galion | $50,000 | Thunderstorm winds downed a few trees and leveled a small shed in Galion. A barn on Millsboro Road just west of the Richland County line was also damaged. A home nearby sustained damage from a fallen tree. Many trees were also reported down along Blooming Grove Road. |
| August 1994 | Thunderstorm Wind | Galion | $50,000 | Trees were downed, some on power lines. At least one house and two cars were also damaged from falling trees. |
| May 2006 | Thunderstorm Wind | Galion | $35,000 | Numerous trees were reported down across the southern half of the City of Galion. One tree was reported to have fallen onto a house causing major damage. |
| May 2013 | Thunderstorm Wind | Galion | $25,000 | A large tree limb fell and crushed a van. A garage was also damaged. |
| June 2011 | Thunderstorm Wind | Galion | $25,000 | Damaging winds originating from a supercell thunderstorm downed four 8-foot sections of fence. Several large trees and numerous large tree branches were downed. |
| September 2002 | Thunderstorm Wind | Galion | $25,000 | Thunderstorm winds estimated at 60 mph downed many trees. |
| June 2019 | Tornado (EF0) | Galion | $20,000 | An EF-0 tornado touched down on North Columbus Street. The tornado lifted and touched down again two more time on Harding Way East and on 2nd Street. The tornado path was a little over a mile long. There was minor damage to outbuildings and tree tops snapped. |
| June 2004 | Thunderstorm Wind | Galion | $20,000 | Thunderstorm winds downed a dozen trees. |
| July 1999 | Thunderstorm Wind | Galion | $20,000 | A large tree fell on a van in the city of Galion and completely destroyed it. |
| May 1996 | Thunderstorm Wind | Galion | $20,000 | no account filed |
| July 2003 | Thunderstorm Wind | Galion | $15,000 | Thunderstorm winds downed several trees. |
| June 2019 | Thunderstorm Wind | Galion | $10,000 | A detached garage was blown down. |
| July 2003 | Thunderstorm Wind | Galion | $6,000 | Thunderstorm winds downed several large limbs. |
| June 2017 | Thunderstorm Wind | Galion | $5,000 | Thunderstorm winds downed a tree. The landed on a parked vehicle causing some damage. |
| June 2017 | Thunderstorm Wind | Galion | $5,000 | Thunderstorm winds downed a couple of large tree limbs. The limbs took out some power lines resulting in some power outages. |
| June 2010 | Thunderstorm Wind | Galion | $5,000 | Thunderstorm winds downed a few trees. |
| August 2009 | Thunderstorm Wind | Galion | $5,000 | A few large limbs were reported down throughout town. At the airport a large billboard sign was badly damaged. |
| June 2003 | Hail | Galion | $5,000 | Quarter size hail was observed. |
| April 2002 | Hail | Galion | $5,000 | Dime size hail was reported. |
| August 2000 | Thunderstorm Wind | Galion | $5,000 | Thunderstorm winds downed four large trees. |
| May 1994 | Thunderstorm Wind | Galion | $5,000 | Trees were downed, some on power lines. |
| June 1994 | Thunderstorm Wind | Galion | $5,000 | Large limbs downed, some on roads and power lines. |
| July 2003 | Thunderstorm Wind | Galion | $4,000 | Thunderstorm winds downed a few large tree limbs. |
| August 2002 | Thunderstorm Wind | Galion | $3,000 | Thunderstorm winds downed a large tree limb west of Galion and a tree in Crestline. |
| August 2016 | Thunderstorm Wind | Galion | $2,000 | Thunderstorm winds downed a few large tree limbs. |
| August 2011 | Thunderstorm Wind | Galion | $2,000 | Thunderstorm winds downed several large tree limbs. |
| August 2003 | Thunderstorm Wind | Galion | $2,000 | Thunderstorm winds downed a few large tree limbs. |
| June 2017 | Thunderstorm Wind | Galion | $1,000 | Thunderstorm winds downed a tree just south of Galion. |
| March 2017 | Thunderstorm Wind | Galion | $1,000 | Thunderstorm winds downed some large tree limbs. |
| September 2016 | Thunderstorm Wind | Galion | $1,000 | Thunderstorm winds downed a tree. |
| August 2016 | Thunderstorm Wind | Galion | $1,000 | Thunderstorm winds downed a tree east of Galion. |
| June 2014 | Thunderstorm Wind | Galion | $1,000 | Thunderstorm winds downed a large tree limb. |
| June 2010 | Thunderstorm Wind | Galion | $1,000 | Thunderstorm winds downed a couple large tree limbs. |
| November 2005 | Thunderstorm Wind | Galion | $1,000 | A few large limbs were reported down. |
| June 2025 | Thunderstorm Wind | Galion | - | Large tree limbs snapped about one-mile south of Galion. |
| August 2023 | Thunderstorm Wind | Galion | - | Couple of trees downed about three-miles WNW of Galion. |
| June 2019 | Thunderstorm Wind | Galion | - | Several large trees were blown down. |
| June 2019 | Thunderstorm Wind | Galion | - | Several large trees were blown down across the county. |
| June 2019 | Thunderstorm Wind | Galion | - | Several large trees were blown down. |
| June 2019 | Thunderstorm Wind | Galion | - | A large tree was blown down on North East Street and Murray Street. |
| September 2017 | Hail | Galion | - | Quarter sized hail was observed. |
| May 2014 | Hail | Galion | - | Penny to quarter sized hail was observed. |
| November 2011 | Hail | Galion | - | Nickel sized hail was observed. |
| February 2011 | Flash Flood | Galion | - | Heavy rain and rapid snow melt led to a rapid rise in the Sandusky River at Bucyrus, which reached a 100 year crest of 10.86 feet. The only official rainfall observation was in Galion where 2.38 was reported. Six to ten inches of heavy snow was on the ground at the onset of the rain. This snow rapidly melted as temperatures warmed into the 50s on the 28th. Up to an additional inch of water equivalent rainfall was released from the melted snow. Several people had be rescued from homes and vehicles as the water came up. About 30 homes in Bucyrus were flooded as the Sandusky River came out of banks. Countyline Road was one of the most affected areas where at least a dozen homes were damaged. Several dozen new cars were destroyed as flood waters inundated a car dealership. Several homes flooded as well in Galion. |
| January 2008 | Thunderstorm Wind | Galion | - | A trained spotter estimated wind gusts during a thunderstorm to be around 65 mph. No damage was noted from the wind gusts. |
| June 2005 | Hail | Galion | - | Penny size hail was observed. |
| April 2004 | Hail | Galion | - | Nickel size hail was observed. |
| May 2004 | Hail | Galion | - | Penny size hail was observed. |
| June 2004 | Hail | Galion | - | Penny size hail was observed. |
| June 2004 | Hail | Galion | - | Penny size hail was observed. |
| August 1998 | Hail | Galion | - | Large hail was reported near Galion. Some crops were damaged. |
| October 1999 | Hail | Galion | - | no account filed |
| May 1997 | Hail | Galion | - | no account filed |
| March 1996 | Flash Flood | Galion | - | no account filed |