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Flood in Cimarron County, Oklahoma
16 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 16 flood events in Cimarron County, Oklahoma, between 1950 and 2026, spread over 8 years.
August is the busiest month, with 9 of the recorded events. The last 20 years account for 6 events against 10 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.4% of the 4,346 flood events recorded in Oklahoma; its 0.9 per 100 square miles compares with 6.3 statewide.
Compared with Oklahoma
| Measure | Cimarron County | Oklahoma | US |
|---|---|---|---|
| Flood events since 1950 | 16 | 4,346 | 183,559 |
| Per 100 square miles | 0.9 | 6.3 | 5.2 |
| Per 10,000 residents | 71.2 | 10.9 | 5.5 |
| Deaths recorded | 0 | 91 | 2,961 |
| Busiest month | August | May | June |
By year
Seasonality
0Feb
0Mar
0Apr
0May
0Jun
5Jul
2Aug
9Sep
0Oct
0Nov
0Dec
0
Recorded events
All 16 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 |
|---|---|---|---|---|---|---|---|
| 19 Jul 2020 | Flood | — | — | — | — | — | County |
| 2 Jun 2019 | Flood | — | — | — | — | — | County |
| 2 Jun 2019 | Flood | — | — | — | — | — | County |
| 2 Jun 2019 | Flood | — | — | — | — | — | County |
| 21 Aug 2018 | Flood | — | — | — | — | — | County |
| 7 Aug 2013 | Flash Flood | — | — | — | — | — | County |
| 14 Aug 2006 | Flash Flood | — | $28K | — | — | — | County |
| 20 Aug 2002 | Flash Flood | — | — | — | — | — | County |
| 20 Aug 2002 | Flash Flood | — | — | — | — | — | County |
| 12 Aug 1997 | Flash Flood | — | — | — | — | — | County |
| 11 Aug 1997 | Flash Flood | — | — | — | — | — | County |
| 10 Aug 1997 | Flash Flood | — | — | — | — | — | County |
| 6 Aug 1997 | Flash Flood | — | — | — | — | — | County |
| 29 Jul 1997 | Flash Flood | — | — | — | — | — | County |
| 25 Jun 1996 | Flash Flood | — | — | — | — | — | County |
| 25 Jun 1996 | Flash Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Cimarron County had?
16 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 Cimarron County?
19 Jul 2020 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Cimarron County?
The flash flood of 14 Aug 2006, with property damage estimated by NCEI at $28K.
How does Cimarron County compare with Oklahoma for flood?
0.9 events per 100 square miles against 6.3 statewide; the county holds 16 of the state's 4,346 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.