Illinois, 2017
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 2017 was 1,732 against 1,412 in 2016.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 28 Feb 2017 | LaSalle | Tornado | EF3 | — | 2 | 14 |
| 18 Nov 2017 | Union | Strong Wind | 41 mph | $15,000 | 2 | — |
| 22 Feb 2017 | Vermilion | Dense Fog | — | — | 1 | 10 |
| 17 May 2017 | Douglas | Strong Wind | 45 mph | — | 1 | 3 |
| 28 Feb 2017 | White | Tornado | EF3 | $2,000,000 | 1 | 1 |
| 17 May 2017 | Sangamon | Strong Wind | 45 mph | — | 1 | 1 |
| 1 May 2017 | Saline | Flood | — | $30,000 | 1 | — |
| 30 Dec 2017 | Peoria | Extreme Cold/Wind Chill | — | — | 1 | — |
| 30 Dec 2017 | Champaign | Extreme Cold/Wind Chill | — | — | 1 | — |
| 21 Aug 2017 | Williamson | Heat | — | — | — | 15 |
| 26 May 2017 | Peoria | Lightning | — | — | — | 2 |
| 12 Jul 2017 | Lake | Flash Flood | — | $12,700,000 | — | — |
| 17 May 2017 | Henry | Tornado | EF2 | $40,000 | — | 1 |
| 10 Jul 2017 | Montgomery | Thunderstorm Wind | 70 mph | — | — | 1 |
| 28 Feb 2017 | Brown | Tornado | EF1 | — | — | 1 |
| 21 Jul 2017 | Jo Daviess | Flash Flood | — | $6,500,000 | — | — |
| 22 Jul 2017 | Stephenson | Flood | — | $7,000,000 | — | — |
| 28 Feb 2017 | Jackson | Tornado | EF3 | $6,000,000 | — | — |
| 12 Jul 2017 | McHenry | Flood | — | $3,900,000 | — | — |
| 26 May 2017 | Vermilion | Thunderstorm Wind | 90 mph | $2,800,000 | — | — |
| 10 Apr 2017 | Fulton | Hail | 2.50 in | $2,000,000 | — | — |
| 29 Apr 2017 | Logan | Thunderstorm Wind | 81 mph | $2,000,000 | — | — |
| 28 Feb 2017 | Woodford | Tornado | EF3 | $1,500,000 | — | — |
| 21 Jul 2017 | Cook | Thunderstorm Wind | 90 mph | $1,000,000 | — | — |
| 28 Feb 2017 | Shelby | Hail | 1.75 in | $800,000 | — | — |
| 28 Feb 2017 | Franklin | Tornado | EF3 | $800,000 | — | — |
| 26 May 2017 | Vermilion | Thunderstorm Wind | 81 mph | $600,000 | — | — |
| 28 Feb 2017 | Marshall | Tornado | EF2 | $500,000 | — | — |
| 11 Jul 2017 | Kane | Flash Flood | — | $500,000 | — | — |
| 28 Jun 2017 | Winnebago | Flash Flood | — | $500,000 | — | — |
| 1 Mar 2017 | Massac | Thunderstorm Wind | 70 mph | $400,000 | — | — |
| 26 May 2017 | Vermilion | Hail | 2.00 in | $325,000 | — | — |
| 10 Jul 2017 | Logan | Thunderstorm Wind | 75 mph | $300,000 | — | — |
| 10 May 2017 | Edgar | Thunderstorm Wind | 70 mph | $250,000 | — | — |
| 18 Nov 2017 | Perry | Tornado | EF0 | $250,000 | — | — |
| 22 Jul 2017 | Jo Daviess | Flash Flood | — | $200,000 | — | — |
| 7 Mar 2017 | Tazewell | Tornado | EF1 | $175,000 | — | — |
| 11 Jul 2017 | Champaign | Thunderstorm Wind | 70 mph | $175,000 | — | — |
| 6 Mar 2017 | Mason | Tornado | EF1 | $150,000 | — | — |
| 1 May 2017 | Alexander | Flood | — | $100,000 | — | — |
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 2017
No declaration touching Illinois was made in 2017.
Flood insurance claims with a 2017 date of loss
988 NFIP claims, 748 of them paid, for $19,107,229.
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.