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Flood in Union County, New Mexico
32 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.
Union County, New Mexico, has 32 flood events in the NCEI record since 1950, with at least one in 19 different years.
July is the busiest month, with 14 of the recorded events. The last 20 years account for 26 events against 6 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.7% of the 1,880 flood events recorded in New Mexico; its 0.8 per 100 square miles compares with 1.5 statewide.
Compared with New Mexico
| Measure | Union County | New Mexico | US |
|---|---|---|---|
| Flood events since 1950 | 32 | 1,880 | 183,559 |
| Per 100 square miles | 0.8 | 1.5 | 5.2 |
| Per 10,000 residents | 77.9 | 8.9 | 5.5 |
| Deaths recorded | 0 | 51 | 2,961 |
| Busiest month | July | July | June |
By year
Seasonality
0Feb
0Mar
0Apr
0May
1Jun
2Jul
14Aug
13Sep
1Oct
1Nov
0Dec
0
Recorded events
All 32 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 |
|---|---|---|---|---|---|---|---|
| 8 Jun 2025 | Flash Flood | — | — | — | — | — | County |
| 30 Jul 2022 | Flash Flood | — | $15K | — | — | — | County |
| 1 Jul 2021 | Flash Flood | — | $30K | — | — | — | County |
| 29 Aug 2020 | Flash Flood | — | $30K | — | — | — | County |
| 8 Aug 2019 | Flash Flood | — | $50K | — | — | — | County |
| 22 Jul 2019 | Flash Flood | — | $5K | — | — | — | County |
| 22 Aug 2017 | Flash Flood | — | — | — | — | — | County |
| 30 Jul 2017 | Flood | — | — | — | — | — | County |
| 29 Jul 2017 | Flash Flood | — | — | — | — | — | County |
| 5 Aug 2016 | Flash Flood | — | — | — | — | — | County |
| 5 Aug 2016 | Flash Flood | — | — | — | — | — | County |
| 13 Aug 2015 | Flash Flood | — | $15K | — | — | — | County |
| 27 Jul 2014 | Flash Flood | — | — | — | — | — | County |
| 18 Jul 2014 | Flash Flood | — | $5K | — | — | — | County |
| 6 Jun 2014 | Flash Flood | — | — | — | — | — | County |
| 3 Aug 2013 | Flash Flood | — | — | — | — | — | County |
| 3 Aug 2013 | Flash Flood | — | $5K | — | — | — | County |
| 31 Jul 2013 | Flash Flood | — | — | — | — | — | County |
| 28 Jul 2011 | Flash Flood | — | $50K | — | — | — | County |
| 2 Jul 2011 | Flash Flood | — | $2K | — | — | — | County |
| 22 Sep 2010 | Flash Flood | — | $12K | — | — | — | County |
| 3 Jul 2010 | Flash Flood | — | $4K | — | — | — | County |
| 26 Jul 2009 | Flash Flood | — | — | — | — | — | County |
| 12 Aug 2008 | Flash Flood | — | $2K | — | — | — | County |
| 12 Aug 2008 | Flash Flood | — | $10K | — | — | — | County |
| 7 Aug 2008 | Flash Flood | — | $5K | — | — | — | County |
| 3 Aug 2006 | Flash Flood | — | — | — | — | — | County |
| 31 Aug 2002 | Flash Flood | — | — | — | — | — | County |
| 13 Jul 2001 | Flash Flood | — | — | — | — | — | County |
| 13 Jul 2001 | Flash Flood | — | — | — | — | — | County |
| 23 Oct 2000 | Flash Flood | — | — | — | — | — | County |
| 22 May 1996 | Flash Flood | — | $20K | — | — | — | County |
Questions and answers
How many flood events has Union County had?
32 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 Union County?
8 Jun 2025 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Union County?
The flash flood of 28 Jul 2011, with property damage estimated by NCEI at $50K.
How does Union County compare with New Mexico for flood?
0.8 events per 100 square miles against 1.5 statewide; the county holds 32 of the state's 1,880 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.