Flood events in Grand County, Colorado The flood events on record, by date and by year
This page is a county record of past events and claims. It does not show the flood zone or the risk of an address. For the flood map of an address, use FEMA's address search (opens in a new tab).
NCEI has 16 flood events on record for Grand County, Colorado, from 1996 through 30 Jun 2026.
The newest flood event on record is on 14 Sep 2023.
From 2016 through 2025, NCEI has 14 flood events on record for the county.
The NWS collects event reports from a variety of sources, which include (but are not limited to): county, state, and federal emergency management officials, local law enforcement officials, SKYWARN spotters, NWS damage surveys, newspaper clipping services, the insurance industry, and the general public, among others.
The National Weather Service reports property and crop damage estimates using available data at the time of event reporting. These values should therefore be considered broad estimates. Damage amounts are not adjusted for inflation.
Zone (NWS Forecast Zone): A zone is a geographic area defined by the NWS for issuing forecasts, watches, and warnings. While zones often align with counties, they can also represent smaller or subdivided areas within a county to account for differences in weather conditions, such as elevation or proximity to water. Larger-scale events—such as heat, cold, drought, and winter storms—are typically recorded by zone.
The words of the agency. Source: NOAA NCEI, Storm Events Database, page "Frequently Asked Questions", copied on .
Date of the data: NCEI storm events through . Event types on this page: Flood, Flash Flood, Coastal Flood, Lakeshore Flood.
Newest flood events on record
Flash Flood
10 miles NNE of HOT SULPHUR SPGS. Damage estimate: $20 thousand
Flash Flood
3 miles WNW of GRANBY. Damage estimate: $15 thousand
Flash Flood
4 miles NE of HOT SULPHUR SPGS
Flash Flood
6 miles NNW of GRANBY. Damage estimate: $15 thousand
Flash Flood
13 miles N of HOT SULPHUR SPGS. Damage estimate: $10 thousand
Flash Flood
5 miles NNE of HOT SULPHUR SPGS. Damage estimate: $10 thousand
Flash Flood
12 miles NNW of HOT SULPHUR SPGS. Damage estimate: $5 thousand
Flash Flood
2 miles WNW of GRAND LAKE. Damage estimate: $35 thousand
Flash Flood
12 miles E of HEENEY
Flash Flood
14 miles SSE of PARSHALL. Damage estimate: $5 thousand
Flash Flood
10 miles NNE of HOT SULPHUR SPGS. Damage estimate: $15 thousand
Flash Flood
14 miles SW of TABERNASH. Damage estimate: $5 thousand
Flash Flood
10 miles N of HOT SULPHUR SPGS. Damage estimate: $10 thousand
Flash Flood
13 miles NNW of HOT SULPHUR SPGS. Damage estimate: $5 thousand
Flash Flood
3 miles ENE of FRASER. Damage estimate: $5 thousand
Flash Flood
At GRANBY
A place is the text of the NCEI record: a distance and a direction from a reference place. The site does not show a place text that names a private property or reads as a person. NCEI gives no magnitude for this hazard.
Flood events by year
| Decade | Year that ends in 0 | Year that ends in 1 | Year that ends in 2 | Year that ends in 3 | Year that ends in 4 | Year that ends in 5 | Year that ends in 6 | Year that ends in 7 | Year that ends in 8 | Year that ends in 9 | All |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1950s | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1960s | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1970s | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1980s | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1990s | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2000s | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 2010s | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 2020s | 0 | 10 | 3 | 1 | 0 | 0 | 0 (part of the year) | 14 |
A darker cell has a larger count. The number is in each cell.
Flood and flash flood events are on record from 1996. The year 2026 has the events through 30 Jun 2026 only.
By month, all years
- Jan0 events
- Feb0 events
- Mar0 events
- Apr0 events
- May0 events
- Jun0 events
- Jul11 events
- Aug4 events
- Sep1 event
- Oct0 events
- Nov0 events
- Dec0 events
Beside the other counties
| Measure | Grand | All counties of Colorado | All counties of the United States |
|---|---|---|---|
| Flood events, 1996 to 2026 | 16 | 1,906 | 177,902 |
| Events for each 100 square miles | 0.9 | 1.8 | 5.0 |
| Events for each 10,000 residents | 10.1 | 3.3 | 5.4 |
The columns for the state and the United States total the counties. They count the events of each county in the same way as the county column. A forecast zone with another name than a county counts for the state only.
Official channels
- NCEI Storm Events Database (opens in a new tab)Search the full NCEI record by state, county and date.
- National Weather Service: Denver/Boulder, CO (opens in a new tab)The forecast office that issues the weather warnings for the county.
- FEMA Flood Map Service Center: Search By Address (opens in a new tab)Search an address to see its flood map. This site has no flood-zone data.
These links open the pages of the agencies. The site checked the links on .
Cite this page
County Hazards. "Flood events on record for Grand County, Colorado". https://countyhazards.com/county/co/grand/flood/. Data: NOAA NCEI Storm Events Database through 30 Jun 2026. Page made on .
Questions
- Which month has the most flood events on record for Grand County?
- July has 11 of the 16 flood events on record from 1996 through 30 Jun 2026.
- How many flood events are on record for Colorado?
- NCEI has 1,956 flood events on record for Colorado from 1996 through 30 Jun 2026. That count has every forecast zone of the state.
- How does Grand County compare with the other counties of Colorado?
- The counties of Colorado have 1.8 flood events for each 100 square miles. Grand County has 0.9.