Maryland, 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 1,099 against 1,128 in 2020.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 1 Sep 2021 | Montgomery | Flash Flood | — | $1,000,000 | 1 | 4 |
| 11 Aug 2021 | Frederick | Lightning | — | $300,000 | 1 | — |
| 27 Aug 2021 | Montgomery | Thunderstorm Wind | 69 mph | $40,000 | — | 3 |
| 11 Aug 2021 | Montgomery | Thunderstorm Wind | 75 mph | $500,000 | — | 1 |
| 26 May 2021 | Prince George's | Thunderstorm Wind | 81 mph | $100,000 | — | 1 |
| 10 Aug 2021 | Montgomery | Lightning | — | $2,500,000 | — | — |
| 28 Oct 2021 | Dorchester | Coastal Flood | — | $1,000,000 | — | — |
| 17 Jul 2021 | Baltimore | Thunderstorm Wind | 75 mph | $500,000 | — | — |
| 13 Aug 2021 | Baltimore city | Thunderstorm Wind | 69 mph | $500,000 | — | — |
| 26 Jul 2021 | Montgomery | Thunderstorm Wind | 81 mph | $300,000 | — | — |
| 3 Jun 2021 | Baltimore | Tornado | EF1 | $250,000 | — | — |
| 28 Oct 2021 | Somerset | Coastal Flood | — | $250,000 | — | — |
| 28 Oct 2021 | Dorchester | Coastal Flood | — | $250,000 | — | — |
| 1 Sep 2021 | Allegany | Flood | — | $200,000 | — | — |
| 3 May 2021 | Frederick | Tornado | EF0 | $150,000 | — | — |
| 28 Oct 2021 | Wicomico | Coastal Flood | — | $150,000 | — | — |
| 26 May 2021 | Prince George's | Thunderstorm Wind | 63 mph | $100,000 | — | — |
| 3 May 2021 | Frederick | Tornado | EF0 | $100,000 | — | — |
| 14 Jun 2021 | Baltimore | Thunderstorm Wind | 75 mph | $100,000 | — | — |
| 1 Jul 2021 | Anne Arundel | Thunderstorm Wind | 81 mph | $100,000 | — | — |
| 1 Jul 2021 | Anne Arundel | Thunderstorm Wind | 81 mph | $100,000 | — | — |
| 17 Jul 2021 | Baltimore | Thunderstorm Wind | 75 mph | $100,000 | — | — |
| 1 Jul 2021 | Dorchester | Thunderstorm Wind | 75 mph | $75,000 | — | — |
| 21 Apr 2021 | St. Mary's | Thunderstorm Wind | 90 mph | $87,500 | — | — |
| 26 Jul 2021 | Montgomery | Lightning | — | $60,000 | — | — |
| 3 May 2021 | Carroll | Tornado | EF0 | $50,000 | — | — |
| 21 Jun 2021 | Washington | Thunderstorm Wind | 75 mph | $50,000 | — | — |
| 1 Jul 2021 | Prince George's | Thunderstorm Wind | 81 mph | $50,000 | — | — |
| 1 Jul 2021 | Prince George's | Thunderstorm Wind | 75 mph | $50,000 | — | — |
| 29 Jul 2021 | Howard | Tornado | EF0 | $50,000 | — | — |
| 17 Jul 2021 | Washington | Thunderstorm Wind | 75 mph | $50,000 | — | — |
| 27 Aug 2021 | Carroll | Lightning | — | $50,000 | — | — |
| 1 Sep 2021 | Baltimore | Tornado | EF0 | $40,000 | — | — |
| 1 Sep 2021 | Dorchester | Tornado | EF0 | $30,000 | — | — |
| 1 Sep 2021 | Anne Arundel | Tornado | EF2 | — | — | — |
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
| Declared | Number | Type | Incident | Title | Counties |
|---|---|---|---|---|---|
| 4 Feb 2021 | DR-4583 | Major disaster | Hurricane | Tropical Storm Isaias | 3 |
Flood insurance claims with a 2021 date of loss
587 NFIP claims, 449 of them paid, for $12,478,093.
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.