County Hazards

Storm events on record through

Iroquois County, Illinois Storm events, disaster declarations and flood insurance claims on record

This page is a county record of past events and claims. It does not show the flood zone or the risk of an address. For the flood map of an address, use FEMA's address search (opens in a new tab).

NCEI has 564 storm events on record for Iroquois County, Illinois, from 1950 through 30 Jun 2026.

The newest event on record is a heat event on 29 Jun 2026.

FEMA has 9 disaster declarations on record for the county from 1964 through 1 Oct 2026. The newest is DR-4489 of 26 Mar 2020.

OpenFEMA has 840 NFIP claims on record for the county from 1978 through 8 Sep 2026. The NFIP paid $17 million on these claims.

The NWS collects event reports from a variety of sources, which include (but are not limited to): county, state, and federal emergency management officials, local law enforcement officials, SKYWARN spotters, NWS damage surveys, newspaper clipping services, the insurance industry, and the general public, among others.

The National Weather Service reports property and crop damage estimates using available data at the time of event reporting. These values should therefore be considered broad estimates. Damage amounts are not adjusted for inflation.

Zone (NWS Forecast Zone): A zone is a geographic area defined by the NWS for issuing forecasts, watches, and warnings. While zones often align with counties, they can also represent smaller or subdivided areas within a county to account for differences in weather conditions, such as elevation or proximity to water. Larger-scale events—such as heat, cold, drought, and winter storms—are typically recorded by zone.

The words of the agency. Source: NOAA NCEI, Storm Events Database, page "Frequently Asked Questions", copied on .

This is raw, unedited data from FEMA's National Emergency Management Information System (NEMIS) and as such is subject to a small percentage of human error.

The words of the agency. Source: FEMA, OpenFEMA Dataset "Disaster Declarations Summaries - v2", copied on . The page gives: last data refresh 2026-10-01.

It is derived from the National Flood Insurance Program system of record, staged in the program's reporting platform and redacted to protect policy holder personally identifiable information.

The words of the agency. Source: FEMA, OpenFEMA Dataset "NFIP Redacted Claims - v3", copied on . The page gives: last data refresh 2026-09-09.

Dates of the data: NCEI storm events through . OpenFEMA disaster declarations through . NFIP claims through .

Since the last update: no change is on record for Iroquois County. The site compares the agency data at each update. Updates of the data

The five hazards

Storm events on record for Iroquois County by hazard and period (NCEI, through 30 Jun 2026)
Hazard1950 to 20262000 to 20092010 to 20192020 to 2026Newest event
Hail7325226
Tornado648819
Flood54271510
Wind260786067
Winter55151422
Other event types58Heat, cold, drought, wildfire, lightning, fog, tropical and other types
All storm events564161130162

A hazard name opens the page of that hazard for the county. A hazard has a page from 10 events. The year 2026 has the events through 30 Jun 2026 only.

Forecast zones with the name of the county give 124 of the 564 events. A county count has the events that NCEI gives to the county. It also has the events of a forecast zone that has the name of the county. A zone with another name counts for the state only.

Rates of Iroquois County beside the total of the counties of Illinois and of the United States
MeasureIroquoisAll counties of IllinoisAll counties of the United States
Storm events for each 100 square miles, 1950 to 202650.5118.449.3
Storm events for each 10,000 residents, 1950 to 2026210.251.952.5
NFIP claims for each 1,000 policies in force, 2016 to 2025807.8207.4185.3

The columns for the state and the United States total the counties. They count the events of each county in the same way as the county column. The site gives a rate for each 10,000 residents only from 10,000 residents. Residents and area: Census Bureau, 2021.

Newest storm events on record

Heat

On record for the forecast zone

Thunderstorm Wind69 mph (60 knots, estimated gust)

3 miles N of EFFNER

Thunderstorm Wind69 mph (60 knots, estimated gust)

1 mile S of IROQUOIS

TornadoEF0

1 mile SSW of WATSEKA

TornadoEF1

3 miles ENE of WELLINGTON

TornadoEF1

2 miles SSE of BAYLES LAKE

Thunderstorm Wind82 mph (71 knots, measured gust)

1 mile S of WATSEKA

Thunderstorm Wind59 mph (51 knots, measured gust)

1 mile N of LA HOGUE

Thunderstorm Wind60 mph (52 knots, estimated gust)

At BUCKLEY

Thunderstorm Wind58 mph (50 knots, measured gust)

4 miles SW of CRESCENT CITY

TornadoEF unrated

2 miles ESE of BEAVERVILLE

Thunderstorm Wind62 mph (54 knots, measured gust)

2 miles SW of PAPINEAU

Thunderstorm Wind72 mph (63 knots, measured gust)

1 mile SSW of WATSEKA

Thunderstorm Wind61 mph (53 knots, measured gust)

4 miles SW of CRESCENT CITY

TornadoEF1

3 miles SE of WOODLAND

TornadoEF1

2 miles NW of LAKE IROQUOIS

TornadoEF0

At WOODLAND

Drought

On record for the forecast zone

Winter Weather

On record for the forecast zone

Thunderstorm Wind60 mph (52 knots, measured gust)

1 mile W of LODA

Drought

On record for the forecast zone

Drought

On record for the forecast zone

Winter Weather

On record for the forecast zone

Cold/Wind Chill

On record for the forecast zone

Cold/Wind Chill

On record for the forecast zone

The 25 events above are the newest in the NCEI record. A place is the text of the NCEI record: a distance and a direction from a reference place. Wind speed is in miles per hour, with the knots that NCEI gives. The site does not show a place text that names a private property or reads as a person. Download these events (CSV)

Storm events on record for Iroquois County by year, 1950 to 2026
DecadeYear that ends in 0Year that ends in 1Year that ends in 2Year that ends in 3Year that ends in 4Year that ends in 5Year that ends in 6Year that ends in 7Year that ends in 8Year that ends in 9All
1950s00001020216
1960s120212111011
1970s412268211229
1980s213011231115
1990s339157564750
2000s21881581524153512161
2010s819111010125121528130
2020s18261711253728 (part of the year)162

A darker cell has a larger count. The number is in each cell.

NCEI recorded tornado events from 1950, and hail and thunderstorm wind events from 1955. It recorded all event types from 1996. A count before 1996 has fewer event types.

FEMA disaster declarations

FEMA has 9 disaster declarations on record for Iroquois County from 1964 through 1 Oct 2026. The newest is DR-4489: COVID-19 PANDEMIC.

Disaster declarations that name Iroquois County (OpenFEMA, through 1 Oct 2026)
DeclaredNumberTypeIncident typeTitle in the FEMA recordAssistance
DR-4489Major disasterBiologicalCOVID-19 PANDEMICIndividual, Public
EM-3435EmergencyBiologicalCOVID-19Public
DR-1747Major disasterSevere StormSEVERE STORMS AND FLOODINGIndividual
EM-3230EmergencyHurricaneHURRICANE KATRINA EVACUATIONPublic
DR-1416Major disasterTornadoSEVERE STORMS, TORNADOES AND FLOODINGIndividual
EM-3161EmergencySnowstormILLINOIS WINTER SNOW STORMSPublic
EM-3134EmergencySnowstormIL-WINTER STORM 1/1/99Public
DR-1025Major disasterSevere StormSEVERE STORMS AND FLOODINGIndividual, Public
DR-860Major disasterSevere Ice StormSEVERE ICE STORMPublic

DR is a major disaster declaration. EM is an emergency declaration. FM is a fire management assistance declaration. A declaration for the whole state is on the Illinois page. What a disaster declaration is

The dataset includes declared recovery programs and geographic areas (county not available before 1964; Fire Management records are considered partial due to historical nature of the dataset).

The words of the agency. Source: FEMA, OpenFEMA Dataset "Disaster Declarations Summaries - v2", copied on . The page gives: last data refresh 2026-10-01.

Flood insurance claims (NFIP)

OpenFEMA has 840 NFIP claims on record for Iroquois County from 1978 through 8 Sep 2026.

The NFIP paid $16,899,767 on 671 claims.

The county has 807.8 NFIP claims for each 1,000 policies in force. The rate uses 206 claims with a year of loss from 2016 to 2025. FEMA counts 255 residential policies in force on 3 Aug 2026. The claims have every type of building. FEMA counts residential policies only.

NFIP claims in Iroquois County by year of loss, 1978 to 2026
DecadeYear that ends in 0Year that ends in 1Year that ends in 2Year that ends in 3Year that ends in 4Year that ends in 5Year that ends in 6Year that ends in 7Year that ends in 8Year that ends in 9All
1970s066
1980s217004000014
1990s3202250102035
2000s11032200336314407
2010s20000170302010376
2020s0200000 (part of the year)2

A darker cell has a larger count. The number is in each cell.

NFIP claims by year of loss with the amount paid: 24 years
NFIP claims in Iroquois County by year of loss, with the amount paid (OpenFEMA, through 8 Sep 2026)
Year of lossClaimsClaims with a paymentAmount paid
20212not shownnot shown
2018201187$6,594,588
20163not shownnot shown
2015170129$2,229,996
20102not shownnot shown
20091411$89,057
2008363270$7,199,119
20073not shownnot shown
20052016$200,843
20042not shownnot shown
20033not shownnot shown
20011not shownnot shown
20001not shownnot shown
19982not shownnot shown
19961not shownnot shown
19942522$135,767
19932not shownnot shown
19912not shownnot shown
19903not shownnot shown
19854not shownnot shown
198277$52,529
19811not shownnot shown
19802not shownnot shown
197966$55,231

A year with fewer than 5 claims shows the count of claims and no amount. A year with 1 to 4 claims with a payment shows no amount either. Such an amount could point to one property. The amount is the sum of the building, contents and increased cost of compliance payments. FEMA counts 67 multiple-loss properties in the county (2 Aug 2026). How FEMA redacts NFIP claims

This dataset is not intended to be an official federal report, and should not be considered an official federal report.

Note, the County Code field may not reflect the individual county the property is located as projects can be associated with more than one county

The words of the agency. Source: FEMA, OpenFEMA Dataset "NFIP Redacted Claims - v3", copied on . The page gives: last data refresh 2026-09-09.

FEMA cannot verify the quality and/or timeliness of any data or any analysis derived therefrom after the data has been retrieved from FEMA.gov.

The words of the agency. Source: FEMA, OpenFEMA Terms and Conditions, copied on . The page gives: last updated 2025-01-22.

National Risk Index

Risk Index rating
Relatively Low
Risk Index score
74.0 of 100
Expected Annual Loss rating
Relatively Low
Expected Annual Loss
$34 million
Social Vulnerability rating
Relatively Low
Community Resilience rating
Relatively High
National Risk Index of Iroquois County by hazard type (FEMA, December 2025 release)
Hazard typeRisk Index ratingExpected Annual Loss
Cold waveRelatively High$10,012,498
DroughtVery Low$7,540
EarthquakeRelatively Low$890,862
HailRelatively Low$507,652
Heat waveRelatively Low$288,703
HurricaneVery Low$15,255
Ice stormVery Low$26,051
Inland floodingRelatively Moderate$19,865,872
LandslideVery Low$610
LightningRelatively Low$127,888
Strong windRelatively Low$513,765
TornadoRelatively Low$1,636,063
WildfireVery Low$1,261
Winter weatherRelatively Low$26,610

The National Risk Index dataset leverages available source data for natural hazard and community risk factors to develop a baseline relative risk measurement for each United States county and Census tract.

The rating is a qualitative categorization that describes the community in comparison to all other communities at the same level, ranging from “Very Low” to “Very High.”

The National Risk Index data are meant for planning purposes only.

The words of the agency. Source: FEMA, National Risk Index Data: Frequently Asked Questions (December 2025, v1.20), copied on .

The labels and the ratings are those of FEMA. Expected Annual Loss is a figure for a whole county. It is not a figure for a property. How to read the National Risk Index

Tropical storm and hurricane tracks

The HURDAT2 record of the National Hurricane Center has 3 tracks within 100 miles of the centre point of the county, through the 2025 season. 0 of them were within 50 miles at hurricane strength.

Storm names, years and distances: 3 tracks
Tropical storm and hurricane tracks within 100 miles of the centre point of Iroquois County (NHC HURDAT2)
Storm nameYearNearest point of the trackHighest wind within 100 miles
Ike200845 miles58 mph
Unnamed Atlantic storm193221 miles40 mph
Unnamed Atlantic storm190295 miles40 mph

A name is the storm name that the National Hurricane Center gave. The distance is from the centre line of the track. It does not show how far the wind, the rain or the surge of a storm went.

ZIP Codes, cities and towns of Iroquois County

Each ZIP Code below has a page with its NFIP claims by year. 5 more ZIP Codes have fewer than 5 claims and no page.

A city or town has no page of its own. This page is the record for the whole county, which has these places:

  • Ashkum
  • Beaverville
  • Buckley
  • Chebanse
  • Cissna Park
  • Clifton
  • Crescent City
  • Danforth
  • Donovan
  • Gilman
  • Iroquois
  • Loda
  • Martinton
  • Milford
  • Onarga
  • Papineau
  • Sheldon
  • Thawville
  • Watseka
  • Wellington
  • Woodland

Official channels

These links open the pages of the agencies. The site checked the links on .

Cite this page

County Hazards. "Iroquois County, Illinois: storm events, disaster declarations and flood insurance claims on record". https://countyhazards.com/county/il/iroquois/. Data: NOAA NCEI Storm Events Database through 30 Jun 2026; FEMA OpenFEMA disaster declarations through 1 Oct 2026; FEMA OpenFEMA NFIP claims through 8 Sep 2026. Page made on .

Where the data comes from

  • Storm events: NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026.
  • Disaster declarations: OpenFEMA Disaster Declarations Summaries, read on 1 Oct 2026.
  • NFIP claims: OpenFEMA NFIP Claims, as of 8 Sep 2026. Multiple-loss properties: 2 Aug 2026. Policies in force: 3 Aug 2026.
  • National Risk Index: FEMA, December 2025 release. Storm tracks: NHC HURDAT2 through the 2025 season.
  • Residents, area, places and adjacent counties: US Census Bureau, 2021 vintage.

How the counts are made · Corrections · Hazards in all states: hail, tornado, flood, wind, winter

Questions

How many tornado events are on record for Iroquois County?
NCEI has 64 tornado events on record for Iroquois County from 1950 through 30 Jun 2026. 11 events have a rating of EF2 or F2, or a higher rating.
How large is the hail on record for Iroquois County?
NCEI has 73 hail events on record from 1955 through 30 Jun 2026. 27 events have a hail size of 1.75 inches or more. NCEI names 1.75 inches a golf ball.
Which month has the most storm events on record for Iroquois County?
June has 125 of the 564 storm events on record from 1950 through 30 Jun 2026.
How many NFIP claims are there for each 1,000 policies in force in Iroquois County?
The county has 807.8 NFIP claims for each 1,000 policies in force. The rate uses 206 claims with a year of loss from 2016 to 2025. FEMA counts 255 residential policies in force on 3 Aug 2026. The claims have every type of building. FEMA counts residential policies only.