Will County, IL Environment & Hazard Risk

• Cold waveVery High$72.3M/yr expected annual loss, about 4.3 events a year
• TornadoVery High$63.1M/yr expected annual loss, about once every 2 years
• Heat waveRelatively Moderate$8.5M/yr expected annual loss, about 3.6 events a year
• Winter weatherRelatively High$617K/yr expected annual loss, about 14 events a year
• EarthquakeRelatively Moderate$7.1M/yr expected annual loss, about once every 685 years
• LightningRelatively High$1.5M/yr expected annual loss, about 45 events a year
• Ice stormRelatively Moderate$532K/yr expected annual loss, about once every 1 year
• HailRelatively Low$498K/yr expected annual loss, about 3.9 events a year
• LandslideVery Low$3,362/yr expected annual loss, about once every 6 years
• WildfireVery Low$87.6K/yr expected annual loss, about once every 3,218 years
• Strong windRelatively Low$730K/yr expected annual loss, about 5.6 events a year
• DroughtRelatively Low$72.1K/yr expected annual loss, about 1.6 events a year
• HurricaneVery Low$13.5K/yr expected annual loss, about once every 107 years

Bars show the national percentile score (0 to 100) for each hazard. Dollar figures are expected annual losses to buildings, people and crops. Not rated here: avalanche, coastal flooding, riverine flooding, tsunami, volcanic activity.

Check the flood zone for an address

Homes with flood insurance

1,026 of 220,472 (0.5%)

Homes in high-risk flood zones

3,291

Insured in high-risk zones

747 (23%)

Flood claims since 1978

2,295

Claims paid since 1978

$21.1M

• Thunderstorm Wind556
• Hail323
• Flood92 · 1 death
• Flash Flood72 · 2 deaths
• Winter Weather69
• Tornado57
• Lightning41 · 3 deaths
• Heavy Rain22
• Winter Storm21
• Cold/Wind Chill20

• Flash Flood07/18/1996

  Countywide, Will County

  2 deaths

• Flash Flood07/27/2003

  North Central Portion, Will County

  $14M damage

  What happened

  A line of severe thunderstorms moved east across north central Illinois during the early afternoon hours of July 27th. Additional thunderstorms developed ahead of the first line across the southern portions of the Chicago Metro area producing very heavy rain and widespread flooding. As the first line of severe storms reached Lee county, numerous trees, tree limbs and power lines were blown down in Amboy in Lee county. Trees were blown down onto houses in West Brooklyn, also in Lee county. Winds as high as 65 mph blew down trees, large tree limbs and power lines across many locations in La Salle county. Trees were blown down in La Salle. Trees were uprooted near Lake Holiday in far northeast La Salle county. Large tree limbs were blown down in Mendota, Norway and one mile east of Serena. A grain bin was crushed and partially lifted off its base in Ottawa and a tree fell onto a car in Seatonville, both in LaSalle county. Wind damage was widespread across Kendall county as well. Trees, large tree limbs and power lines were blown down in Plano, Newark and Oswego as well as many rural parts of the county. Trees were blown down blocking Illinois Route 71 west of Oswego....

• TornadoEF2, 2.42 mi path, 150 yd wide06/08/2008

  Monee, Will County

  6 injured, $5.5M damage

  What happened

  A tornado developed near Ridgeland Avenue and Dralle Road, where a high tension metal truss tower collapsed and four others were damaged. Power lines blocked Interstate 57. The tornado destroyed a mobile home and outbuildings east of Ridgeland between Dralle and Stuenkel Roads before crossing Interstate 57. The tornado was rated EF2 in this area. Six people were injured in vehicles on Interstate 57. Several cars were damaged and a semi trailer was completely destroyed. East of Interstate 57 at Stuenkel Road, a large warehouse had bay doors blown in, much of the roof collapsed, and the west wall blown in. Utility poles were pushed over along South Central Avenue.

• Lightning07/28/2016

  Bolingbrook, Will County

  1 death, 1 injured

  What happened

  Woman struck by lightning while walking in the 300 block of Janes Avenue.

• Extreme Cold/Wind Chill01/14/2024

  Northern Will County

  1 death

  What happened

  Bitterly cold air combined with winds gusting to 35 mph at times allowed wind chills to drop to 30 below to 45 below zero across all of northern Illinois from the early morning of January 14th through the morning of January 15th. The coldest wind chills of around 45 below zero occurred around and just after daybreak on January 14th. Air temperatures ranged from 10 below to 15 below zero on the morning of January 14th and from 15 below to 20 below on the morning of January 15th. Wind chills between 20 below and 30 below continued for the rest of January 15th and through the morning of January 17th when temperatures slowly warmed into the single digits above zero and winds began to diminish.||A 41 year old woman was found dead outside a library in Coal City from cold exposure on January 14th and a 59 year old man was found dead outside his home in Bolingbrook from cold exposure on January 16th.

• Heat06/13/2022

  Eastern Will County

  1 death

  What happened

  A 33 year old man died from heat exposure.

• JolietServes 160,000 · Groundwater · Local government1 health violation+9 monitoring or reporting
• Il American-West SuburbanServes 73,978 · Purchased surface water · PrivateNo health violations
• RomeovilleServes 50,458 · Groundwater · Local governmentNo health violations
• PlainfieldServes 50,000 · Purchased surface water · Local governmentNo health violations+2 monitoring or reporting
• New LenoxServes 29,200 · Purchased surface water · Local governmentNo health violations
• Il American-Homer TownshipServes 24,543 · Purchased surface water · PrivateNo health violations
• FrankfortServes 24,000 · Groundwater · Local governmentNo health violations+3 monitoring or reporting
• LockportServes 23,100 · Groundwater · Local governmentNo health violations+42 monitoring or reporting