Illinois, 2023
The year's recorded storm events, federal disaster declarations and flood insurance claims.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders.
Events by hazard
Includes events recorded by forecast zone. The state's yearly total for 2023 was 2,503 against 2,178 in 2022.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 1 May 2023 | Montgomery | Dust Storm | — | — | 8 | 37 |
| 31 Mar 2023 | Crawford | Tornado | EF3 | — | 3 | 8 |
| 31 Mar 2023 | Boone | Tornado | EF1 | — | 1 | 40 |
| 27 Jul 2023 | Peoria | Excessive Heat | — | — | 1 | — |
| 2 Jul 2023 | Cook | Flash Flood | — | $500,000,000 | — | — |
| 17 Sep 2023 | Cook | Flash Flood | — | $50,000,000 | — | — |
| 16 Feb 2023 | Forecast zone | Strong Wind | 45 mph | — | — | 4 |
| 4 Apr 2023 | Fulton | Tornado | EF3 | — | — | 4 |
| 29 Jul 2023 | Marion | Thunderstorm Wind | 64 mph | — | — | 3 |
| 5 Jul 2023 | Kane | Lightning | — | $700,000 | — | 2 |
| 29 Jun 2023 | Hancock | Thunderstorm Wind | 100 mph | — | — | 2 |
| 29 Jun 2023 | Vermilion | Thunderstorm Wind | 70 mph | — | — | 2 |
| 27 Feb 2023 | Forecast zone | High Wind | 58 mph | — | — | 1 |
| 13 Oct 2023 | Brown | Tornado | EF1 | — | — | 1 |
| 30 Jun 2023 | Williamson | Hail | 3.00 in | $10,000,000 | — | — |
| 12 Jul 2023 | Cook | Tornado | EF1 | — | — | 1 |
| 26 Jul 2023 | Winnebago | Lightning | — | — | — | 1 |
| 31 Mar 2023 | Marion | Tornado | EF1 | $2,000,000 | — | — |
| 29 Jul 2023 | Wayne | Thunderstorm Wind | 75 mph | $250,000 | — | — |
| 19 Jul 2023 | Massac | Flash Flood | — | $250,000 | — | — |
| 15 Apr 2023 | Madison | Thunderstorm Wind | 70 mph | $200,000 | — | — |
| 3 Mar 2023 | Hamilton | Flash Flood | — | $200,000 | — | — |
| 19 Jul 2023 | Pulaski | Flash Flood | — | $150,000 | — | — |
| 19 Jul 2023 | Alexander | Flash Flood | — | $150,000 | — | — |
| 2 Jul 2023 | Williamson | Thunderstorm Wind | 70 mph | $125,000 | — | — |
| 1 Jul 2023 | Wabash | Thunderstorm Wind | 85 mph | $100,000 | — | — |
| 1 May 2023 | Sangamon | Dust Storm | — | $100,000 | — | — |
| 24 Jan 2023 | Jackson | Heavy Snow | — | $50,000 | — | — |
| 22 Feb 2023 | Clinton | Thunderstorm Wind | 70 mph | $50,000 | — | — |
| 29 Jul 2023 | Jackson | Thunderstorm Wind | 64 mph | $50,000 | — | — |
| 29 Jul 2023 | Franklin | Thunderstorm Wind | 64 mph | $50,000 | — | — |
| 14 Jul 2023 | Hamilton | Flash Flood | — | $50,000 | — | — |
| 12 Jan 2023 | Massac | Tornado | EF0 | $15,000 | — | — |
| 31 Mar 2023 | Montgomery | Tornado | EF0 | $15,000 | — | — |
| 31 Mar 2023 | Macoupin | Tornado | EF0 | $10,000 | — | — |
| 5 Aug 2023 | Jasper | Tornado | EF unrated | — | — | — |
| 3 Jan 2023 | Macon | Tornado | EF0 | — | — | — |
| 31 Mar 2023 | Lee | Tornado | EF1 | — | — | — |
| 31 Mar 2023 | Boone | Tornado | EF1 | — | — | — |
| 31 Mar 2023 | Livingston | Tornado | EF unrated | — | — | — |
Up to 40 events with deaths, injuries, damage of $50,000 or more, or a tornado rating, ranked by deaths, injuries and damage.
Federal disaster declarations in 2023
| Declared | Number | Type | Incident | Title | Counties |
|---|---|---|---|---|---|
| 20 Nov 2023 | DR-4749 | Major disaster | Flood | Severe Storms And Flooding | 1 |
| 15 Aug 2023 | DR-4728 | Major disaster | Severe Storm | Severe Storms And Flooding | 22 |
Flood insurance claims with a 2023 date of loss
213 NFIP claims, 142 of them paid, for $2,440,616.
Sources: NOAA NCEI Storm Events through 30 Jun 2026; OpenFEMA DisasterDeclarationsSummaries v2 (1 Oct 2026); OpenFEMA NfipClaims v3 (8 Sep 2026). Built 1 Oct 2026.