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Flood in Sherman County, Kansas
56 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.
Sherman County, Kansas, has 56 flood events in the NCEI record since 1950, with at least one in 17 different years.
May is the busiest month, with 16 of the recorded events. The last 20 years account for 45 events against 11 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.2% of the 4,604 flood events recorded in Kansas; its 5.3 per 100 square miles compares with 5.6 statewide.
Compared with Kansas
| Measure | Sherman County | Kansas | US |
|---|---|---|---|
| Flood events since 1950 | 56 | 4,604 | 183,559 |
| Per 100 square miles | 5.3 | 5.6 | 5.2 |
| Per 10,000 residents | 95.0 | 15.7 | 5.5 |
| Deaths recorded | 0 | 32 | 2,961 |
| Busiest month | May | May | June |
By year
Seasonality
0Feb
0Mar
1Apr
0May
16Jun
12Jul
12Aug
9Sep
6Oct
0Nov
0Dec
0
Recorded events
All 56 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 |
|---|---|---|---|---|---|---|---|
| 7 Aug 2023 | Flash Flood | — | — | — | — | — | County |
| 30 Jun 2023 | Flash Flood | — | — | — | — | — | County |
| 30 Jun 2023 | Flash Flood | — | — | — | — | — | County |
| 15 Jun 2023 | Flash Flood | — | — | — | — | — | County |
| 15 Jun 2023 | Flash Flood | — | — | — | — | — | County |
| 17 May 2023 | Flood | — | $10 | $10 | — | — | County |
| 7 Jun 2022 | Flood | — | — | — | — | — | County |
| 11 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 11 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 11 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 11 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 10 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 7 Aug 2019 | Flash Flood | — | — | — | — | — | County |
| 1 Jul 2019 | Flash Flood | — | — | — | — | — | County |
| 1 Jul 2019 | Flash Flood | — | — | — | — | — | County |
| 26 May 2019 | Flash Flood | — | — | — | — | — | County |
| 26 May 2019 | Flash Flood | — | — | — | — | — | County |
| 26 Jul 2018 | Flash Flood | — | — | — | — | — | County |
| 1 Jun 2017 | Flood | — | — | — | — | — | County |
| 1 Jun 2017 | Flood | — | — | — | — | — | County |
| 31 May 2017 | Flash Flood | — | — | — | — | — | County |
| 26 May 2017 | Flash Flood | — | — | — | — | — | County |
| 26 May 2017 | Flash Flood | — | — | — | — | — | County |
| 26 May 2017 | Flash Flood | — | — | — | — | — | County |
| 11 May 2017 | Flash Flood | — | — | — | — | — | County |
| 11 May 2017 | Flood | — | — | — | — | — | County |
| 11 May 2017 | Flash Flood | — | — | — | — | — | County |
| 11 May 2017 | Flash Flood | — | — | — | — | — | County |
| 11 May 2017 | Flood | — | — | — | — | — | County |
| 18 Jul 2014 | Flash Flood | — | $1K | — | — | — | County |
| 24 Jun 2014 | Flash Flood | — | — | — | — | — | County |
| 24 Jun 2014 | Flash Flood | — | — | — | — | — | County |
| 13 Sep 2013 | Flood | — | — | — | — | — | County |
| 13 Sep 2013 | Flood | — | — | — | — | — | County |
| 13 Sep 2013 | Flood | — | — | — | — | — | County |
| 13 Sep 2013 | Flood | — | — | — | — | — | County |
| 13 Sep 2013 | Flood | — | — | — | — | — | County |
| 12 Sep 2013 | Flash Flood | — | — | — | — | — | County |
| 28 Jul 2011 | Flash Flood | — | — | — | — | — | County |
| 4 Jul 2010 | Flash Flood | — | — | — | — | — | County |
| 23 May 2010 | Flash Flood | — | — | — | — | — | County |
| 15 Aug 2009 | Flash Flood | — | $500 | — | — | — | County |
| 1 Aug 2007 | Flash Flood | — | — | — | — | — | County |
| 25 May 2007 | Flash Flood | — | — | — | — | — | County |
| 28 Mar 2007 | Flash Flood | — | $25K | $25K | — | — | County |
| 16 Jun 2006 | Flash Flood | — | $10K | — | — | — | County |
| 31 May 2006 | Flash Flood | — | — | — | — | — | County |
| 31 May 2006 | Flash Flood | — | — | — | — | — | County |
| 22 Jul 2004 | Flash Flood | — | — | — | — | — | County |
| 23 Jul 2001 | Flood | — | — | — | — | — | Forecast zone |
| 1 Jul 2001 | Flash Flood | — | — | — | — | — | County |
| 11 Jun 1999 | Flash Flood | — | — | — | — | — | County |
| 10 Jun 1999 | Flash Flood | — | — | — | — | — | County |
| 9 Jul 1998 | Flood | — | — | — | — | — | Forecast zone |
| 8 Jul 1998 | Flash Flood | — | — | — | — | — | County |
| 25 Jul 1996 | Flash Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Sherman County had?
56 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 Sherman County?
7 Aug 2023 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Sherman County?
The flash flood of 28 Mar 2007, with property damage estimated by NCEI at $25K and crop damage at $25K.
How does Sherman County compare with Kansas for flood?
5.3 events per 100 square miles against 5.6 statewide; the county holds 56 of the state's 4,604 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.