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Flood in Frio County, Texas
78 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.
Frio County, Texas, has 78 flood events in the NCEI record since 1950, with at least one in 17 different years.
July is the busiest month, with 24 of the recorded events. The last 20 years account for 28 events against 50 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.5% of the 15,832 flood events recorded in Texas; its 6.9 per 100 square miles compares with 6.1 statewide.
Compared with Texas
| Measure | Frio County | Texas | US |
|---|---|---|---|
| Flood events since 1950 | 78 | 15,832 | 183,559 |
| Per 100 square miles | 6.9 | 6.1 | 5.2 |
| Per 10,000 residents | 42.3 | 5.4 | 5.5 |
| Deaths recorded | 0 | 595 | 2,961 |
| Busiest month | July | May | June |
By year
Seasonality
1Feb
1Mar
2Apr
5May
6Jun
14Jul
24Aug
5Sep
10Oct
6Nov
4Dec
0
Recorded events
All 78 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 |
|---|---|---|---|---|---|---|---|
| 27 Sep 2017 | Flood | — | — | — | — | — | County |
| 27 Sep 2017 | Flood | — | — | — | — | — | County |
| 20 May 2017 | Flash Flood | — | — | — | — | — | County |
| 21 Aug 2016 | Flash Flood | — | — | — | — | — | County |
| 2 Jun 2016 | Flash Flood | — | — | — | — | — | County |
| 2 Jun 2016 | Flash Flood | — | — | — | — | — | County |
| 10 May 2012 | Flash Flood | — | — | — | — | — | County |
| 17 Apr 2010 | Flash Flood | — | — | — | — | — | County |
| 16 Apr 2010 | Flash Flood | — | — | — | — | — | County |
| 11 Sep 2009 | Flash Flood | — | — | — | — | — | County |
| 11 Sep 2009 | Flash Flood | — | — | — | — | — | County |
| 11 Sep 2009 | Flash Flood | — | — | — | — | — | County |
| 30 Jul 2007 | Flood | — | — | — | — | — | County |
| 29 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 26 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 25 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 24 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 24 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 22 Jul 2007 | Flood | — | — | — | — | — | County |
| 20 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 7 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 6 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 4 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 3 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 28 Jun 2007 | Flash Flood | — | — | — | — | — | County |
| 25 May 2007 | Flash Flood | — | — | — | — | — | County |
| 2 May 2007 | Flash Flood | — | — | — | — | — | County |
| 13 Mar 2007 | Flash Flood | — | — | — | — | — | County |
| 4 Jul 2006 | Flash Flood | — | — | — | — | — | County |
| 4 Jul 2006 | Flash Flood | — | — | — | — | — | County |
| 10 Sep 2005 | Flash Flood | — | — | — | — | — | County |
| 15 May 2005 | Flash Flood | — | — | — | — | — | County |
| 22 Nov 2004 | Flash Flood | — | — | — | — | — | County |
| 18 Nov 2004 | Flood | — | — | — | — | — | Forecast zone |
| 16 Nov 2004 | Flash Flood | — | — | — | — | — | County |
| 1 Sep 2004 | Flash Flood | — | — | — | — | — | County |
| 23 Aug 2004 | Flood | — | — | — | — | — | Forecast zone |
| 22 Aug 2004 | Flash Flood | — | — | — | — | — | County |
| 1 Jul 2004 | Flood | — | — | — | — | — | Forecast zone |
| 30 Jun 2004 | Flash Flood | — | — | — | — | — | County |
| 29 Jun 2004 | Flash Flood | — | — | — | — | — | County |
| 25 Jun 2004 | Flash Flood | — | — | — | — | — | County |
| 23 Jun 2004 | Flash Flood | — | — | — | — | — | County |
| 22 Jun 2004 | Flash Flood | — | — | — | — | — | County |
| 9 Jun 2004 | Flash Flood | — | — | — | — | — | County |
| 8 Jun 2004 | Flash Flood | — | — | — | — | — | County |
| 10 Apr 2004 | Flash Flood | — | — | — | — | — | County |
| 4 Apr 2004 | Flash Flood | — | — | — | — | — | County |
| 29 Mar 2004 | Flash Flood | — | $5K | — | — | — | County |
| 12 Oct 2003 | Flash Flood | — | $10K | — | — | — | County |
| 15 Jul 2003 | Flash Flood | — | $5K | — | — | — | County |
| 5 Jul 2003 | Flash Flood | — | $5K | — | — | — | County |
| 25 Oct 2002 | Flood | — | — | — | — | — | Forecast zone |
| 24 Oct 2002 | Flash Flood | — | $50K | $30K | — | — | County |
| 9 Oct 2002 | Flash Flood | — | $20K | — | — | — | County |
| 15 Sep 2002 | Flash Flood | — | — | — | — | — | County |
| 9 Sep 2002 | Flood | — | — | — | — | — | Forecast zone |
| 8 Sep 2002 | Flash Flood | — | $700K | $100K | — | 15 | County |
| 16 Jul 2002 | Flash Flood | — | — | — | — | — | County |
| 15 Jul 2002 | Flash Flood | — | — | — | — | — | County |
| 3 Jul 2002 | Flood | — | — | — | — | — | Forecast zone |
| 3 Jul 2002 | Flash Flood | — | — | — | — | — | County |
| 3 Jul 2002 | Flash Flood | — | — | — | — | — | County |
| 2 Jul 2002 | Flash Flood | — | — | — | — | — | County |
| 1 Jul 2002 | Flash Flood | — | — | — | — | — | County |
| 7 Apr 2002 | Flash Flood | — | $10K | $50K | — | — | County |
| 17 Nov 2001 | Flood | — | — | — | — | — | Forecast zone |
| 23 Oct 2000 | Flash Flood | — | $20K | $20K | — | — | County |
| 24 Aug 1999 | Flash Flood | — | $30K | — | — | — | County |
| 24 Jun 1999 | Flash Flood | — | $3K | — | — | — | County |
| 6 Aug 1998 | Flash Flood | — | $10K | — | — | — | County |
| 29 Jun 1998 | Flash Flood | — | $10K | — | — | — | County |
| 21 Feb 1998 | Flash Flood | — | $3K | — | — | — | County |
| 6 Jan 1998 | Flash Flood | — | $3K | — | — | — | County |
| 21 Jun 1997 | Flash Flood | — | $3K | — | — | — | County |
| 27 May 1997 | Flash Flood | — | $5K | — | — | — | County |
| 29 Oct 1996 | Flood | — | $100K | $1.0M | — | — | Forecast zone |
| 1 Jun 1996 | Flash Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Frio County had?
78 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 Frio County?
27 Sep 2017 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Frio County?
The flood of 29 Oct 1996, with property damage estimated by NCEI at $100K and crop damage at $1.0M.
How does Frio County compare with Texas for flood?
6.9 events per 100 square miles against 6.1 statewide; the county holds 78 of the state's 15,832 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.