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Flood in Grant County, Minnesota
20 floods and flash floods events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Flood, Flash Flood, Coastal Flood, Lakeshore Flood.
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. Storm records through 30 Jun 2026.
NCEI records 20 flood events in Grant County, Minnesota, between 1950 and 2026, spread over 10 years.
June is the busiest month, with 9 of the recorded events. The last 20 years account for 6 events against 14 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.7% of the 2,680 flood events recorded in Minnesota; its 3.7 per 100 square miles compares with 3.4 statewide.
Compared with Minnesota
| Measure | Grant County | Minnesota | US |
|---|---|---|---|
| Flood events since 1950 | 20 | 2,680 | 183,559 |
| Per 100 square miles | 3.7 | 3.4 | 5.2 |
| Per 10,000 residents | 32.5 | 4.7 | 5.5 |
| Deaths recorded | 0 | 23 | 2,961 |
| Busiest month | June | June | June |
By year
Seasonality
0Feb
0Mar
3Apr
5May
1Jun
9Jul
2Aug
0Sep
0Oct
0Nov
0Dec
0
Recorded events
All 20 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 28 Mar 2019 | Flood | — | $50K | — | — | — | County |
| 30 May 2011 | Flash Flood | — | — | — | — | — | County |
| 3 Apr 2011 | Flood | — | — | — | — | — | County |
| 6 Apr 2009 | Flood | — | $5K | — | — | — | County |
| 22 Mar 2009 | Flood | — | $5K | — | — | — | County |
| 2 Jun 2007 | Flood | — | — | — | — | — | County |
| 1 Apr 2006 | Flood | — | — | — | — | — | County |
| 21 Mar 2006 | Flood | — | — | — | — | — | County |
| 25 Jul 2005 | Flash Flood | — | — | — | — | — | County |
| 29 Jun 2005 | Flash Flood | — | — | — | — | — | County |
| 25 Jun 2003 | Flash Flood | — | — | — | — | — | County |
| 24 Jun 2003 | Flash Flood | — | — | — | — | — | County |
| 23 Jun 2003 | Flash Flood | — | — | — | — | — | County |
| 23 Jun 2003 | Flash Flood | — | — | — | — | — | County |
| 13 Jun 2001 | Flash Flood | — | — | — | — | — | County |
| 13 Jun 2001 | Flash Flood | — | — | — | — | — | County |
| 13 Jun 2001 | Flash Flood | — | — | — | — | — | County |
| 5 Apr 2001 | Flood | — | $500K | — | — | — | Forecast zone |
| 15 Jul 1999 | Flood | — | $20K | — | — | — | County |
| 9 Apr 1997 | Flood | — | $3.0M | — | — | — | Forecast zone |
Questions and answers
How many flood events has Grant County had?
20 events in the NCEI Storm Events record between 1950 and 2026. Reporting of floods and flash floods became far more complete after 1996, so early decades undercount.
When was the last recorded flood event in Grant County?
28 Mar 2019 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Grant County?
The flood of 9 Apr 1997, with property damage estimated by NCEI at $3.0M.
How does Grant County compare with Minnesota for flood?
3.7 events per 100 square miles against 3.4 statewide; the county holds 20 of the state's 2,680 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Flood hub and the county page.