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Flood in Weld County, Colorado
65 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.
Weld County, Colorado, has 65 flood events in the NCEI record since 1950, with at least one in 24 different years.
July is the busiest month, with 18 of the recorded events. The last 20 years account for 48 events against 17 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 3.3% of the 1,956 flood events recorded in Colorado; its 1.6 per 100 square miles compares with 1.9 statewide.
NCEI attributes 2 deaths in the county to floods and flash floods.
Compared with Colorado
| Measure | Weld County | Colorado | US |
|---|---|---|---|
| Flood events since 1950 | 65 | 1,956 | 183,559 |
| Per 100 square miles | 1.6 | 1.9 | 5.2 |
| Per 10,000 residents | 1.9 | 3.4 | 5.5 |
| Deaths recorded | 2 | 47 | 2,961 |
| Busiest month | July | July | June |
By year
Seasonality
0Feb
0Mar
0Apr
0May
13Jun
17Jul
18Aug
11Sep
6Oct
0Nov
0Dec
0
Recorded events
All 65 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 |
|---|---|---|---|---|---|---|---|
| 10 Aug 2025 | Flood | — | — | — | — | — | County |
| 31 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 31 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 24 Jul 2025 | Flood | — | — | — | — | — | County |
| 12 Aug 2024 | Flood | — | — | — | — | — | County |
| 20 Jun 2024 | Flash Flood | — | — | — | — | — | County |
| 28 May 2024 | Flood | — | — | — | — | — | County |
| 28 May 2024 | Flood | — | $3.4M | — | 1 | — | County |
| 30 Jun 2023 | Flood | — | — | — | 1 | 5 | County |
| 11 Jun 2023 | Flash Flood | — | $50K | — | — | — | County |
| 11 May 2023 | Flood | — | $1.0M | $250K | — | — | County |
| 1 Jul 2021 | Flash Flood | — | — | $5K | — | — | County |
| 1 Jul 2021 | Flash Flood | — | $5K | — | — | — | County |
| 1 Jul 2021 | Flash Flood | — | $50K | — | — | — | County |
| 30 Jun 2021 | Flash Flood | — | — | $5K | — | — | County |
| 30 Jun 2021 | Flash Flood | — | $5K | — | — | — | County |
| 18 Jun 2018 | Flash Flood | — | $10K | — | — | — | County |
| 8 May 2017 | Flash Flood | — | $500K | $50K | — | — | County |
| 17 Jul 2016 | Flash Flood | — | $5K | $10K | — | — | County |
| 13 Jun 2015 | Flash Flood | — | $15K | $10K | — | — | County |
| 2 Jun 2015 | Flood | — | $25K | $50K | — | — | County |
| 20 May 2015 | Flood | — | $250K | $100K | — | — | County |
| 20 May 2015 | Flood | — | $250K | $100K | — | — | County |
| 9 May 2015 | Flood | — | $15K | $5K | — | — | County |
| 8 May 2015 | Flood | — | $500K | $100K | — | — | County |
| 25 Aug 2014 | Flood | — | $25K | $25K | — | — | County |
| 29 Jul 2014 | Flash Flood | — | $10K | $10K | — | — | County |
| 1 Jun 2014 | Flood | — | $250K | $50K | — | — | County |
| 30 May 2014 | Flash Flood | — | $15K | $10K | — | — | County |
| 25 May 2014 | Flood | — | $15K | $10K | — | — | County |
| 14 Sep 2013 | Flash Flood | — | — | — | — | — | County |
| 12 Sep 2013 | Flood | — | $230M | $3.8M | — | — | County |
| 12 Sep 2013 | Flash Flood | — | — | — | — | — | County |
| 12 Sep 2013 | Flash Flood | — | — | — | — | — | County |
| 11 Sep 2013 | Flash Flood | — | — | — | — | — | County |
| 3 Aug 2013 | Flash Flood | — | $50K | $50K | — | — | County |
| 26 Sep 2012 | Flash Flood | — | $15K | $10K | — | — | County |
| 7 Jun 2012 | Flash Flood | — | $10K | $5K | — | — | County |
| 12 Jul 2011 | Flash Flood | — | $50K | $100K | — | — | County |
| 12 Jun 2010 | Flood | — | $25K | $50K | — | — | County |
| 12 Jun 2010 | Flood | — | $25K | $50K | — | — | County |
| 11 Jun 2010 | Flash Flood | — | $25K | $250K | — | — | County |
| 11 Jun 2010 | Flash Flood | — | $25K | $50K | — | — | County |
| 26 May 2010 | Flash Flood | — | $25K | $50K | — | — | County |
| 25 May 2009 | Flash Flood | — | $5K | — | — | — | County |
| 6 Aug 2008 | Flash Flood | — | $50K | $25K | — | — | County |
| 22 Aug 2007 | Flash Flood | — | $1K | — | — | — | County |
| 2 Aug 2007 | Flash Flood | — | $1K | — | — | — | County |
| 9 Jun 2004 | Flash Flood | — | — | — | — | — | County |
| 26 Jul 2003 | Flash Flood | — | — | — | — | — | County |
| 13 Jul 2001 | Flash Flood | — | $600K | — | — | — | County |
| 11 Jul 2001 | Flash Flood | — | — | — | — | — | County |
| 7 Jun 2001 | Flash Flood | — | — | — | — | — | County |
| 17 Aug 2000 | Flash Flood | — | — | — | — | — | County |
| 4 Aug 2000 | Flood | — | — | — | — | — | County |
| 10 Jul 2000 | Flood | — | — | — | — | — | County |
| 19 Jul 1999 | Flash Flood | — | — | — | — | — | County |
| 4 Jul 1998 | Flood | — | — | — | — | — | County |
| 29 Jul 1997 | Flash Flood | — | — | — | — | — | County |
| 28 Jul 1997 | Flash Flood | — | — | — | — | — | County |
| 27 Jul 1997 | Flash Flood | — | — | — | — | — | County |
| 14 Jun 1997 | Flood | — | — | — | — | — | County |
| 24 May 1997 | Flash Flood | — | — | — | — | — | County |
| 29 Aug 1996 | Flash Flood | — | — | — | — | — | County |
| 27 Aug 1996 | Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Weld County had?
65 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 Weld County?
10 Aug 2025 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Weld County?
The flood of 12 Sep 2013, with property damage estimated by NCEI at $230M and crop damage at $3.8M.
How does Weld County compare with Colorado for flood?
1.6 events per 100 square miles against 1.9 statewide; the county holds 65 of the state's 1,956 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.