Windsor

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond this area.
2. Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.

Storm Prediction Center severe weather database, 1950 to 2025.

Every large fire

1. Large fires mapped by the Monitoring Trends in Burn Severity program since 1984: 1,000 acres or more in the West, 500 or more in the East. Prescribed burns are excluded. Acres here are the part of each perimeter inside this place.

Monitoring Trends in Burn Severity (USGS and U.S. Forest Service), 1984 to 2026.

Smoke overhead

1. A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.

NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.

Flood insurance figures are for Weld County, the county that contains Windsor.

Claims by ZIP code

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.

River crests

River gauges in Weld County, the county that contains Windsor.

River gauges

1. Crests are the highest and the recent crests the National Weather Service lists for each river gauge in the county that has a flood stage, not every flood. Flood categories use each gauge's current flood stages; crests from before levees, dams or channel changes may not be comparable. Crests measured on an old datum are left out of the rankings.

NOAA National Water Prediction Service gauge records, retrieved October 30, 2026.

The drought index is for Weld County, the county that contains Windsor.

1. The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.

NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.

Every earthquake of magnitude 4 or more within 50 miles

1. Earthquakes of magnitude 2.5 or more in the USGS Comprehensive Catalog since 1900. Within 50 miles means the epicentre lies within 50 miles of the city centre.
2. Small earthquakes were under-recorded before the modern seismic networks of the 1970s and are still missed in remote areas, so early decades read low. Magnitudes are as the catalogue reports them and mix scales (moment, local and body-wave).

USGS ANSS Comprehensive Earthquake Catalog, 1900 to present, retrieved October 30, 2026.

More event types since 1996

Costliest events since 1996

1. Sep 12, 2013Flood$230 million
   National Weather Service narrative

   Heavy rain, ranging from 4 to 10 inches through the entire storm event, caused widespread flooding along entire drainage system of the Cache La Poudre River including Greeley and vicinity. In Evans, thousands of residents were told not to flush their toilets or shower, prompting Greeley-Evans School District 6 to close schools. Similar problems occurred in Lasalle. County commissioners estimated at least $230 million in damages to properties and infrastructure throughout Weld County. County officials estimated more than 7,000 parcels of land were impacted by floodwaters; 2,900 were residential and 2,300 were agricultural. In addition, 355 commercial and 62 industrial properties…

2. May 22, 2008Tornado$147 million
   National Weather Service narrative

   A powerful tornado swept north-northwestward across Weld County and into Larimer County, carving a path of destruction, nearly 39 miles in length. The tornado, up to one-mile wide at times, initially touched down northeast of Platteville and finally lifted 6 miles west-northwest of Wellington. A tornado assessment in the aftermath of the tornado revealed extensive areas of damage. On the enhanced Fujita Scale there were pockets of EF3 damage, mainly near the Missile Silo Park Campground, and to businesses and home in eastern Windsor. ||There was one fatality, and 78 injuries. One man was killed when he tried to escape the trailer park in his motor home. Preliminary estimates from…

3. May 28, 2024Flood$3.4 million
   National Weather Service narrative

   Multiple road closures occurred downtown Greeley due to flooding. These included 9th and 10th streets between 10th avenue and 14th avenue, 11th avenue from 8th street to 11th street, and 8th avenue from 10th street to 12th street. As of June 10th, 279 personal properties and businesses have been included in the report (disaster declaration), as well as 77 government buildings and public infrastructure, totaling approximately $3.4 million in damages from the storm.

4. Jun 23, 1997Hail$3.1 million
   National Weather Service narrative

   Large hail, up to golfball size, hammered the Greeley area causing extensive damage. Estimates included $2.25 million to homes with another $840,000 in automobile claims.

5. Jul 10, 2001Hail$2.0 million
   National Weather Service narrative

   Heavy rain, large hail and intense thunderstorm winds occurred in Greeley and vicinity. At least 50 trees were knocked down damaging cars and homes. Scattered power outages affected approximately 10,000 homes and businesses. A 341-ft radio tower was also blown down, knocking a local radio station off the air. In central Greeley, 10 garden level apartments were flooded at the Brentwood apartment complex. Extensive crop damage was reported in La Salle, Greeley, Milliken and Platteville. Approximately 20-30 percent of the crops in the area were damaged.

6. Aug 10, 2004Hail$2.0 million
   National Weather Service narrative

   Large hail broke car windows, damaged roofs and stripped trees and at least 3,000 acres of crops. At Eaton's high school, middle school and two elementary schools, at least 60 skylights were shattered by hail. Water flooded the hallways and classrooms. Damage to the schools alone was estimated at $2 million.

7. May 27, 1997Hail$2.0 million
8. May 11, 2023Flood$1.0 million
   National Weather Service narrative

   Weld County closed 23 sections of county roads due to flooding. Roads that were closed or damaged included: Weld County Road 4 from County Roads 15-17, Weld County Road 6 from County Road 23-U.S. 85, Weld County Road 8 from County Road 23-U.S. 85, Weld County Road 10 from CO 79 - County Road 71, Weld County Road 10, from County Road 81-83, Weld County Road 14 from County Road 85-87, Weld County Road 15, from County Road 2-4, Weld County Road 16 from County Road 71-73, Weld County Road 16 from County Road 73-77, Weld County Road 17 from County Road 34-38, Weld County Road 42 from County Road 45-47, Weld County Road 48 from County Road 43-45, Weld County Road 50 from County Road…

9. Jul 13, 2001Flash Flood$600,000
   National Weather Service narrative

   Anywhere from 3 to 5 inches of rainfall reportedly fell in the Greeley area in less the 2 hours. As a result, several roads were inundated with up to 2 feet of water and many basements of homes and businesses were flooded. In the basement of Greeley City Hall, several boxes of documents dating back to the 1800's were drenched in the floodwaters. The roof of a local business collapsed during the deluge. Approximately 2300 homes and businesses in town suffered electrical outages.

10. Jun 7, 2021Tornado$531,000
    National Weather Service narrative

    The tornado touched down in southern Weld County. There were no injuries, but at least two calves were killed, and several chickens. Several homes lost windows and roofing material. One home lost an entire wall and most of its roof, and an unattached garage was completely destroyed with the car inside flipped on its roof. Nearby outbuildings sustained damage, and one caught fire due to downed power lines. Downed power lines also led to a closure of WCR 21 between Highway 66 and WCR 32.5.

1. Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.

NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.

All-time high

103°FJul 21, 2005

All-time low

−41°FFeb 1, 1951

Warmest night

76°FJul 31, 2006

Coldest day

−10°FFeb 4, 1989

Wettest day

4.63 inJul 29, 1997

Snowiest day

21.1 inNov 20, 1979

Hottest year

2012mean 53.5°F

Coldest year

1912mean 43.6°F

Wettest year

196128.18 in

Driest year

19667.34 in

Snowiest season

114.1 in1979-80

Station Fort Collins (USC00053005), 5,004 ft elevation, 11.2 miles from the city centre. Daily records from 1893 to October 26, 2026; 99.6% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.

NOAA NCEI Global Historical Climatology Network Daily.

Declarations for Weld County.

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.

• Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
• Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
• Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
• Storm events NOAA NCEI Storm Events Database, through 2026.
• Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
• Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
• Weather records NOAA NCEI Global Historical Climatology Network Daily, station USC00053005.
• River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
• Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
• Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
• Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.

Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.