Illinois, 2020
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 2020 was 1,752 against 2,094 in 2019.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 25 Feb 2020 | Tazewell | Winter Weather | — | — | 1 | 3 |
| 20 Jan 2020 | Peoria | Cold/Wind Chill | — | — | 1 | — |
| 24 May 2020 | Pike | Flash Flood | — | — | 1 | — |
| 14 Mar 2020 | Macon | Winter Weather | — | — | 1 | — |
| 15 May 2020 | DuPage | Flood | — | — | 1 | — |
| 13 Feb 2020 | Peoria | Cold/Wind Chill | — | — | 1 | — |
| 10 Aug 2020 | Cook | Thunderstorm Wind | 90 mph | — | 1 | — |
| 15 Apr 2020 | Forecast zone | Winter Weather | — | — | — | 14 |
| 10 Aug 2020 | Ogle | Thunderstorm Wind | 100 mph | — | — | 5 |
| 10 Aug 2020 | LaSalle | Thunderstorm Wind | 81 mph | — | — | 3 |
| 11 Jan 2020 | Cook | Lakeshore Flood | — | $25,000,000 | — | — |
| 19 Mar 2020 | Perry | Tornado | EF1 | $300,000 | — | 1 |
| 19 Jul 2020 | Effingham | Thunderstorm Wind | 60 mph | $250,000 | — | 1 |
| 20 Jun 2020 | Christian | Thunderstorm Wind | 60 mph | $75,000 | — | 1 |
| 25 May 2020 | Perry | Thunderstorm Wind | 64 mph | $20,000 | — | 1 |
| 23 May 2020 | Grundy | Tornado | EF0 | — | — | 1 |
| 15 Jul 2020 | Woodford | Flood | — | $10,000,000 | — | — |
| 10 Aug 2020 | Lake | Thunderstorm Wind | 75 mph | — | — | 1 |
| 10 Aug 2020 | LaSalle | Thunderstorm Wind | 75 mph | — | — | 1 |
| 11 Jul 2020 | Champaign | Hail | 1.75 in | $5,000,000 | — | — |
| 11 Jul 2020 | McLean | Thunderstorm Wind | 70 mph | $350,000 | — | — |
| 21 Jul 2020 | Sangamon | Tornado | EF1 | $300,000 | — | — |
| 28 Mar 2020 | Peoria | Tornado | EF1 | $300,000 | — | — |
| 11 Jul 2020 | McLean | Thunderstorm Wind | 70 mph | $250,000 | — | — |
| 11 Jul 2020 | McLean | Thunderstorm Wind | 70 mph | $80,000 | — | — |
| 21 Jul 2020 | Champaign | Thunderstorm Wind | 60 mph | $175,000 | — | — |
| 8 Apr 2020 | Logan | Thunderstorm Wind | 70 mph | $150,000 | — | — |
| 8 Apr 2020 | Piatt | Thunderstorm Wind | 70 mph | $150,000 | — | — |
| 19 Mar 2020 | Hamilton | Tornado | EF1 | $125,000 | — | — |
| 11 Jul 2020 | Macon | Thunderstorm Wind | 70 mph | $125,000 | — | — |
| 11 Jul 2020 | Stark | Thunderstorm Wind | 70 mph | $50,000 | — | — |
| 28 Mar 2020 | Fulton | Tornado | EF1 | $100,000 | — | — |
| 28 Apr 2020 | Sangamon | Tornado | EF0 | $100,000 | — | — |
| 8 Apr 2020 | Macon | Thunderstorm Wind | 70 mph | $100,000 | — | — |
| 8 Apr 2020 | Piatt | Thunderstorm Wind | 70 mph | $100,000 | — | — |
| 8 Apr 2020 | Crawford | Thunderstorm Wind | 70 mph | $100,000 | — | — |
| 21 Jul 2020 | Sangamon | Thunderstorm Wind | 70 mph | $100,000 | — | — |
| 10 Aug 2020 | Vermilion | Thunderstorm Wind | 60 mph | $100,000 | — | — |
| 10 Aug 2020 | Knox | Thunderstorm Wind | 60 mph | $100,000 | — | — |
| 10 Aug 2020 | Peoria | Thunderstorm Wind | 60 mph | $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 2020
| Declared | Number | Type | Incident | Title | Counties |
|---|---|---|---|---|---|
| 26 Mar 2020 | DR-4489 | Major disaster | Biological | Covid-19 Pandemic | 102 |
| 13 Mar 2020 | EM-3435 | Emergency | Biological | Covid-19 | 102 |
Flood insurance claims with a 2020 date of loss
633 NFIP claims, 478 of them paid, for $10,208,083.
Sources: NOAA NCEI Storm Events through 30 Jun 2026; OpenFEMA DisasterDeclarationsSummaries v2 (29 Sep 2026); OpenFEMA NfipClaims v3 (8 Sep 2026). Built 30 Sep 2026.