Illinois, 2015
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 2015 was 1,810 against 1,712 in 2014.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 26 Dec 2015 | Marion | Flash Flood | — | — | 5 | — |
| 27 Dec 2015 | Christian | Flood | — | $2,800,000 | 4 | — |
| 12 Jan 2015 | Cook | Cold/Wind Chill | — | — | 3 | — |
| 2 Aug 2015 | DuPage | Thunderstorm Wind | 69 mph | — | 2 | 19 |
| 9 Apr 2015 | DeKalb | Tornado | EF3 | $8,000,000 | 2 | 11 |
| 9 Mar 2015 | Ogle | Dense Fog | — | — | 2 | 4 |
| 28 Dec 2015 | McLean | Ice Storm | — | $975,000 | 2 | — |
| 14 Feb 2015 | Morgan | Cold/Wind Chill | — | — | 2 | — |
| 15 Jan 2015 | Will | Cold/Wind Chill | — | — | 2 | — |
| 7 Dec 2015 | McLean | Dense Fog | — | — | 1 | 1 |
| 10 May 2015 | Jefferson | Thunderstorm Wind | 60 mph | $45,000 | 1 | — |
| 3 Jan 2015 | Pulaski | Flood | — | $40,000 | 1 | — |
| 13 Mar 2015 | Wabash | Flood | — | $5,000 | 1 | — |
| 13 Jul 2015 | Effingham | Heat | — | — | 1 | — |
| 11 May 2015 | Clinton | Flood | — | — | 1 | — |
| 3 Feb 2015 | Cook | Cold/Wind Chill | — | — | 1 | — |
| 3 Jan 2015 | Cook | Cold/Wind Chill | — | — | 1 | — |
| 7 Jan 2015 | Cook | Cold/Wind Chill | — | — | 1 | — |
| 5 Jan 2015 | Cook | Cold/Wind Chill | — | — | 1 | — |
| 5 Jan 2015 | Will | Cold/Wind Chill | — | — | 1 | — |
| 29 Dec 2015 | Livingston | Flood | — | — | 1 | — |
| 26 Dec 2015 | Jersey | Flash Flood | — | — | 1 | — |
| 19 Jul 2015 | Pike | Flash Flood | — | — | 1 | — |
| 14 Feb 2015 | Grundy | Winter Weather | — | $300,000 | — | 12 |
| 22 Jun 2015 | Grundy | Tornado | EF3 | $25,000,000 | — | 7 |
| 22 Jun 2015 | Lee | Tornado | EF2 | $1,000,000 | — | 7 |
| 16 Jul 2015 | Tazewell | Tornado | EF2 | $1,200,000 | — | 2 |
| 16 Jul 2015 | Warren | Tornado | EF2 | $1,500,000 | — | 1 |
| 9 Apr 2015 | Ogle | Tornado | EF4 | $10,000,000 | — | — |
| 2 Aug 2015 | Cook | Thunderstorm Wind | 69 mph | — | — | 1 |
| 27 Dec 2015 | Douglas | Flood | — | $2,200,000 | — | — |
| 28 Dec 2015 | Peoria | Ice Storm | — | $1,700,000 | — | — |
| 28 Dec 2015 | Tazewell | Ice Storm | — | $1,200,000 | — | — |
| 9 Apr 2015 | Lee | Tornado | EF1 | $1,000,000 | — | — |
| 13 Jul 2015 | LaSalle | Hail | 3.75 in | $1,000,000 | — | — |
| 27 Dec 2015 | Shelby | Flood | — | $1,000,000 | — | — |
| 2 Aug 2015 | Lake | Tornado | EF1 | $1,000,000 | — | — |
| 19 Jun 2015 | Franklin | Tornado | EF1 | $500,000 | — | — |
| 8 Jul 2015 | McLean | Flash Flood | — | $500,000 | — | — |
| 27 Dec 2015 | Moultrie | Flood | — | $500,000 | — | — |
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 2015
No declaration touching Illinois was made in 2015.
Flood insurance claims with a 2015 date of loss
992 NFIP claims, 746 of them paid, for $12,345,515.
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.