| February 1999 | Thunderstorm Wind | Stockton | 1 hurt | no account filed |
| June 2011 | Thunderstorm Wind | Stockton | $50,000 | Wind gusts estimated to be 70 mph caused tree damage and siding damage across Stockton, IL around 930 pm CDT June 8. One large tree limb fell onto a car. |
| July 2003 | Thunderstorm Wind | Stockton | $50,000 | Trees & power lines down |
| July 2017 | Flash Flood | Stockton | $40,000 | A trained spotter reported widespread flooding in the town of Stockton. Rainfall totals reached 7.81 inches in 6 hours. |
| August 2008 | Thunderstorm Wind | Stockton | $25,000 | Wind gusts estimated to be 70 mph blew a tree onto a house in Stockton, IL at 610 pm August 4. |
| June 2004 | Flash Flood | Stockton | $10,000 | U.S. 20 impassable |
| August 2003 | Lightning | Stockton | $7,500 | Location is 0.5 to 1.5 miles west of Loran, Illinois in Stephenson County. The barn was in poor condition and was used to house only cattle and hay. All the cattle were successfully evacuated from the barn and the hay was very old and in poor quality. |
| June 2005 | Thunderstorm Wind | Stockton | $5,000 | Power out. |
| August 2003 | Thunderstorm Wind | Stockton | $5,000 | Measured gust by Co-op |
| June 2006 | Thunderstorm Wind | Stockton | $2,000 | trees and power lines down |
| July 2011 | Thunderstorm Wind | Stockton | $1,000 | Wind gusts estimated to be 65 mph blew some storm windows into a home in Stockton, IL at 627 am CDT July 11. Some metal yard furniture was also blown around the yard. This report was relayed by WREX. |
| March 2005 | Thunderstorm Wind | Stockton | $500 | Reported by Co-op. |
| August 2008 | Thunderstorm Wind | Stockton | $200 | Wind gusts estimated to be 65 mph blew down some five inch diameter tree branches and bent a metal pole supporting a wind sock in half in Stockton, IL at 628 pm August 4. A metal table was also blown off of a deck. |
| March 2026 | Hail | Stockton | - | The COOP Observer reported that the hail lasted for 3 minutes. |
| April 2026 | Thunderstorm Wind | Stockton | - | Recorded with an anemometer. |
| April 2026 | Thunderstorm Wind | Stockton | - | Recorded with an anemometer. |
| April 2026 | Thunderstorm Wind | Stockton | - | Power poles blown down just south of Stockton Illinois. This was determined to be done by straight line winds. |
| April 2026 | Thunderstorm Wind | Stockton | - | A 3 foot diameter tree blown down. |
| April 2026 | Hail | Stockton | - | Photos on social media. |
| May 2024 | Thunderstorm Wind | Stockton | - | Several large trees damaged. Time estimated from radar data. |
| July 2024 | Thunderstorm Wind | Stockton | - | The COOP observed report tat several trees were down of various diameter. One was a foot in diameter. |
| July 2024 | Thunderstorm Wind | Stockton | - | The COOP Observer reported a measured 84 MPH gust on a personal home weather station. |
| November 2022 | Thunderstorm Wind | Stockton | - | A COOP Observer reported a very strong wind gusts measured on a wind sensor 24 feet above the ground. There were many branches down. |
| July 2022 | Flash Flood | Stockton | - | The COOP Observer reported patio flooded with water flowing through the basement window. Measured 3.05 inches of rain between 9 and 11 PM. |
| October 2021 | Thunderstorm Wind | Stockton | - | A trained spotter reported a brief strong wind gust from there personal weather station. |
| October 2021 | Thunderstorm Wind | Stockton | - | A trained spotter reported a measured wind gust of 60 knots. |
| August 2020 | Thunderstorm Wind | Stockton | - | A power pole and wires were blown down in Stockton, Illinois. |
| June 2019 | Thunderstorm Wind | Stockton | - | A public report via social media of a shed flipped and destroyed on Simmons Steet. The time of the event was estimated using radar. |
| September 2019 | Thunderstorm Wind | Stockton | - | Electric and phone wires blown down on the southeast side of Stockton Illinois. The report was relayed by the 911 call center. |
| October 2018 | Flash Flood | Stockton | - | Law enforcement reported water over the road from creek flooding at the intersection of Howardsville Road and Mammoser Road. |
| July 2017 | Flash Flood | Stockton | - | The Illinois Department of Highways reported Highway 20 east of Stockton was closed due to high water. |
| March 2017 | Thunderstorm Wind | Stockton | - | A large tree was down on a power line in Stockton resulting in a power outage for the local area. |
| June 2017 | Thunderstorm Wind | Stockton | - | Tree branches and power poles were blown down. |
| July 2016 | Thunderstorm Wind | Stockton | - | Local law enforcement reported trees and power lines were down. The time was estimated by radar. |
| June 2014 | Thunderstorm Wind | Stockton | - | Wind measured on wind equipment. |
| June 2014 | Thunderstorm Wind | Stockton | - | Measured on home weather station. |
| June 2014 | Thunderstorm Wind | Stockton | - | A large grain bin was blown onto Willow Road near Stockton. |
| June 2014 | Thunderstorm Wind | Stockton | - | The emergency manager reported widespread wind damage with Highway 20 closed from Stockton east into Stephenson county. Several other highways were closed due to trees blocking the roads. |
| May 2013 | Thunderstorm Wind | Stockton | - | A COOP observer measured 65 mph winds. |
| May 2013 | Thunderstorm Wind | Stockton | - | A COOP observer measured a 4 inch diameter tree limb down at the residence. |
| July 2012 | Thunderstorm Wind | Stockton | - | A COOP observer measured a 58 mph wind gust. He also reported an 8 inch diameter main tree branch broken off near Stockton and several small 1 inch diameter branches down. |
| July 2011 | Heavy Rain | Stockton | - | As of 850 pm CDT July 27, the rainfall total in Stockton, IL was 3.00 inches and it was still raining. |
| July 2011 | Tornado (EF0) | Stockton | - | Around 755 pm CDT July 27, a tornado was reported about 3 miles northeast of Stockton, IL near Tiger Whip Road. This report was relayed by the emergency manager. |
| July 2011 | Heavy Rain | Stockton | - | As of 1230 am CDT July 28, the 5 1/2 hour rainfall total in Stockton, IL was 4.95 inches. |
| August 2011 | Heavy Rain | Stockton | - | The rain fell over a period of 25 minutes. |
| September 2010 | Hail | Stockton | - | Half dollar-sized hail fell in Stockton, IL at 327 pm CDT September 21. |
| June 2010 | Flash Flood | Stockton | - | Heavy rains of 1.5 inches in 30 minutes resulted in flash flooding in Stockton, IL during the afternoon of June 15. This report was relayed by WREX TV. |
| July 2009 | Hail | Stockton | - | Tennis ball-sized hail fell 2 miles north of Stockton, IL around 558 pm July 24. |
| July 2009 | Hail | Stockton | - | Golf ball-sized hail fell about 4 miles east northeast of Stockton, IL around 604 pm July 24. |
| July 2009 | Hail | Stockton | - | Golf ball-sized hail fell for a few minutes in Stockton, IL around 605 pm July 24. |
| July 2009 | Hail | Stockton | - | Hail up to 2 inches in diameter fell in Stockton, IL around 607 pm July 24. |
| July 2009 | Thunderstorm Wind | Stockton | - | Wind gusts were estimated to be 50 to 60 mph about 3 miles northwest of Stockton, IL at 855 pm July 27. |
| June 2008 | Hail | Stockton | - | Penny-sized hail fell in Stockton, IL at 7:52 pm June 8. The hail stones broke into slivers and chunks upon hitting the ground. |
| May 2008 | Hail | Stockton | - | Golf ball-sized hail fell in Stockton, IL around 9:45 pm. This report was relayed by a trained spotter. |
| June 2008 | Hail | Stockton | - | Quarter-sized hail fell in Stockton, IL at 8:55 am June 8. |
| June 2006 | Thunderstorm Wind | Stockton | - | measured gust |
| September 2006 | Heavy Rain | Stockton | - | The co-op observer reported 1.25 inches of rain in the past hour. |
| May 2004 | Thunderstorm Wind | Stockton | - | From Co-op observer. |
| June 2004 | Heavy Rain | Stockton | - | In the past 2 hours. |
| July 2004 | Thunderstorm Wind | Stockton | - | From co-op observer. |