| April 2013 | Flood | Havana | $5,000,000 | Hundreds of cabins and sheds in wildlife areas along the Illinois River were severely damaged. In addition, 25 homes and several other structures were damaged near Bath, Snicarte, Havana and Goofy Ridge. Nearly 15 miles of roads will need to be rebuilt due to the flooding. The river stage at Havana climbed to a record level of 27.78 feet on April 25th at 19:15 local time, which was nearly 14 feet above flood stage. High impact flooding continued into the month of May 2013. |
| June 1999 | Tornado (F1) | Havana | $500,000 | no account filed |
| August 2008 | Lightning | Havana | $150,000 | Lightning struck a house in the city of Havana setting the roof and attic ablaze. The residents of the house were able to flee uninjured. The house burned to the ground. |
| August 2020 | Thunderstorm Wind | Havana | $50,000 | Several trees were blown down in Havana. |
| May 2017 | Thunderstorm Wind | Havana | $50,000 | Numerous trees were blown down. |
| June 2016 | Thunderstorm Wind | Havana | $35,000 | Several tree limbs and power lines were blown down in Havana. |
| August 2009 | Thunderstorm Wind | Havana | $35,000 | Several power lines and large tree limbs were blown down in Havana. |
| June 2016 | Thunderstorm Wind | Havana | $30,000 | Five power poles were snapped off west of IL-97 on 1550E near the power station. |
| June 2008 | Thunderstorm Wind | Havana | $25,000 | Numerous trees and power lines were blown down in Havana and across much of Mason County. |
| August 2020 | Thunderstorm Wind | Havana | $20,000 | Downed power lines caused a 4-acre field fire northeast of Havana. |
| June 2010 | Thunderstorm Wind | Havana | $20,000 | Power lines were blown down in Havana. |
| June 2009 | Thunderstorm Wind | Havana | $20,000 | Several trees were uprooted in Havana. |
| June 2015 | Thunderstorm Wind | Havana | $10,000 | Several large tree limbs were blown down. |
| July 2009 | Thunderstorm Wind | Havana | $10,000 | Numerous trees were blown down in Havana. |
| May 2016 | Thunderstorm Wind | Havana | $6,000 | Four trees were blown down just northeast of Havana. |
| July 2010 | Thunderstorm Wind | Havana | $6,000 | Two trees were blown down. |
| May 2015 | Lightning | Havana | $5,000 | Lightning struck a tree, which fell on a building behind the fire department in Havana. |
| June 1994 | Thunderstorm Wind | Havana | $5,000 | Power lines were blown down. |
| June 2015 | Thunderstorm Wind | Havana | $2,000 | A tree was blown down in Havana. |
| March 2026 | Thunderstorm Wind | Havana | - | Several trees, power lines, and traffic lights were blown down across Havana as a result of a downburst. |
| July 2024 | Thunderstorm Wind | Havana | - | Minor damage occurred to shingles and siding of a house. |
| July 2024 | Thunderstorm Wind | Havana | - | Several large tree branches were blown down in Riverfront Park. |
| October 2021 | Thunderstorm Wind | Havana | - | A large tree limb was blown down. |
| July 2020 | Thunderstorm Wind | Havana | - | Several tree limbs were blown down across Havana. |
| July 2020 | Flash Flood | Havana | - | Several streets were flooded and barricaded in Havana. |
| July 2017 | Thunderstorm Wind | Havana | - | A flag pole was snapped. |
| June 2015 | Flash Flood | Havana | - | A narrow band of thunderstorms produced 2.00 to 3.00 of rain on very saturated ground in west central and northern Mason County. Many streets were flooded in Havana and Manito. Numerous rural roads were also impassable from Havana to Manito during the afternoon hours of June 26th. |
| May 2013 | Flood | Havana | - | High impact flooding on the Illinois River continued from April.||Hundreds of cabins and sheds in wildlife areas along the Illinois River were severely damaged by the floodwaters. In addition, 25 homes and several other structures were damaged near Bath, Snicarte, Havana and Goofy Ridge. Nearly 15 miles of roads were destroyed due to the flooding. High impact flooding subsided when the river level at Havana fell below a stage of 17 feet on May 19th.||Damage estimates were reported in the April Storm Data for this event. |
| April 2006 | Hail | Havana | - | Hail covered the ground. |
| September 2006 | Thunderstorm Wind | Havana | - | No damage was reported. |
| September 2006 | Thunderstorm Wind | Havana | - | Tree limbs and corn were blown down. |
| July 2006 | Thunderstorm Wind | Havana | - | Numerous trees and power lines were blown down. |
| September 2006 | Flash Flood | Havana | - | Numerous roads flooded in Havana. Route 136 had 1 to 2 feet of water flowing across it for a time. |
| May 2004 | Thunderstorm Wind | Havana | - | Several trees and a road sign were blown over. |
| May 2003 | Tornado (F1) | Havana | - | A tornado touched down in the Quiver Beach area. It destroyed a travel trailer and a garage. As the tornado traveled to the northeast it blew down numerous trees and power lines before lifting and dissipating. No injuries were reported. |
| April 2001 | Thunderstorm Wind | Havana | - | Tree limbs and power lines were reported down across the area. |
| August 2001 | Thunderstorm Wind | Havana | - | Trees and power lines were reported down in Havana, as well as on the southern end of Easton. |
| August 2001 | Thunderstorm Wind | Havana | - | Several trees, tree limbs and power lines were blown down. |
| August 2000 | Thunderstorm Wind | Havana | - | Several large trees were blown down in Matanza Beach. |
| June 1999 | Hail | Havana | - | Golfball sized hail fell one mile south of Havana and in Kilbourne. Dime size hail fell in San Jose. |
| November 1998 | Thunderstorm Wind | Havana | - | In Mason City, a steel roofing system was blown off of an IDOT garage and numerous trees were blown down. Five miles north of Mason City, a tandem truck was blown off of Highway 136. The driver was not injured. In rural Mason City, a 2x4 was thrown through a bathroom window on a farm house and the roof was blown off of a machine shed. |
| April 1998 | Tornado (F0) | Havana | - | A tornado briefly touched down in a field 3 miles southwest of Havana. No injuries or damage were reported. |
| July 1998 | Thunderstorm Wind | Havana | - | Thunderstorm winds blew down trees and power lines down in Bath, along Route 78 between Bath and Havana, and in Havana. Also, a grain wagon was blown across the road in Havana and the shed doors were blown in at the Havana city disposal plant. No injuries were reported. |
| July 1997 | Thunderstorm Wind | Havana | - | A series of severe thunderstorms moved through the Havana area. Numerous trees were blown down, one of which fell onto the roof of a house 2 miles south of Havana. Also, some minor street flooding was reported due to the heavy amounts of rain in a short period of time. No injuries were reported and no damage estimate was available. |
| February 2026 | Hail | Havana | - | no account filed |
| March 2024 | Hail | Havana | - | no account filed |
| May 2019 | Hail | Havana | - | no account filed |
| June 2015 | Hail | Havana | - | no account filed |
| July 2006 | Hail | Havana | - | no account filed |
| April 2004 | Hail | Havana | - | no account filed |
| May 2004 | Hail | Havana | - | no account filed |
| May 2004 | Hail | Havana | - | no account filed |
| August 2003 | Hail | Havana | - | no account filed |
| May 2003 | Hail | Havana | - | no account filed |
| May 2001 | Hail | Havana | - | no account filed |
| April 2000 | Hail | Havana | - | no account filed |
| August 2000 | Hail | Havana | - | no account filed |
| April 1998 | Hail | Havana | - | no account filed |
| April 1997 | Thunderstorm Wind | Havana | - | no account filed |
| October 1996 | Thunderstorm Wind | Havana | - | no account filed |