Wisconsin, 2021
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 2021 was 1,160 against 966 in 2020.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 30 Sep 2021 | Sheboygan | Dense Fog | — | $20,000 | 2 | — |
| 28 Mar 2021 | Fond du Lac | Strong Wind | 46 mph | — | 2 | — |
| 21 Apr 2021 | Washington | Winter Weather | — | — | 1 | 38 |
| 11 Feb 2021 | Monroe | Winter Weather | — | $8,000 | 1 | 1 |
| 5 Jan 2021 | Rock | Dense Fog | — | — | 1 | 1 |
| 24 Aug 2021 | Dunn | Lightning | — | — | 1 | 1 |
| 28 Dec 2021 | La Crosse | Winter Weather | — | $25,000 | 1 | — |
| 28 Jul 2021 | Fond du Lac | Thunderstorm Wind | 75 mph | $15,000 | 1 | — |
| 15 Dec 2021 | Forecast zone | Dense Fog | — | $10,000 | 1 | — |
| 6 Feb 2021 | Vernon | Cold/Wind Chill | — | — | 1 | — |
| 23 Dec 2021 | Jackson | Winter Weather | — | $500,000 | — | 20 |
| 10 Aug 2021 | Sawyer | Lightning | — | — | — | 4 |
| 20 Sep 2021 | Trempealeau | Tornado | EF1 | $450,000 | — | 1 |
| 15 Dec 2021 | Jackson | Thunderstorm Wind | 66 mph | $75,000 | — | 1 |
| 17 Jun 2021 | Trempealeau | Hail | 1.75 in | $885,000 | — | — |
| 17 Jun 2021 | Buffalo | Hail | 1.75 in | $520,000 | — | — |
| 15 Dec 2021 | Trempealeau | Tornado | EF0 | $520,000 | — | — |
| 28 Jul 2021 | Columbia | Tornado | EF1 | $500,000 | — | — |
| 17 Sep 2021 | St. Croix | Thunderstorm Wind | 78 mph | $500,000 | — | — |
| 7 Aug 2021 | Grant | Tornado | EF3 | $430,000 | — | — |
| 6 Jul 2021 | Trempealeau | Thunderstorm Wind | 52 mph | $375,000 | — | — |
| 26 Jun 2021 | Crawford | Flash Flood | — | $305,000 | — | — |
| 25 May 2021 | Wood | Lightning | — | $300,000 | — | — |
| 17 Jun 2021 | Buffalo | Hail | 2.50 in | $260,000 | — | — |
| 17 Jun 2021 | Buffalo | Hail | 2.50 in | $260,000 | — | — |
| 17 Jun 2021 | Waupaca | Lightning | — | $250,000 | — | — |
| 28 Jul 2021 | Pierce | Thunderstorm Wind | 70 mph | $250,000 | — | — |
| 15 Dec 2021 | Clark | Tornado | EF2 | $200,000 | — | — |
| 15 Dec 2021 | Clark | Tornado | EF2 | $200,000 | — | — |
| 28 Jul 2021 | St. Croix | Tornado | EF1 | $175,000 | — | — |
| 10 Aug 2021 | Waukesha | Thunderstorm Wind | 77 mph | $150,000 | — | — |
| 15 Dec 2021 | Clark | Tornado | EF1 | $160,000 | — | — |
| 28 Jul 2021 | Barron | Thunderstorm Wind | 64 mph | $150,000 | — | — |
| 28 Jul 2021 | St. Croix | Thunderstorm Wind | 70 mph | $100,000 | — | — |
| 27 Jul 2021 | Trempealeau | Hail | 2.75 in | $105,000 | — | — |
| 15 Dec 2021 | Clark | Tornado | EF2 | $120,000 | — | — |
| 29 Jun 2021 | Crawford | Flash Flood | — | $110,000 | — | — |
| 17 Jun 2021 | Trempealeau | Hail | 2.00 in | $95,000 | — | — |
| 28 Jul 2021 | St. Croix | Thunderstorm Wind | 75 mph | $100,000 | — | — |
| 7 Aug 2021 | Vernon | 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 2021
No declaration touching Wisconsin was made in 2021.
Flood insurance claims with a 2021 date of loss
33 NFIP claims, 20 of them paid, for $216,510.
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.