Yolo County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Yolo County: 0.
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.

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

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.

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 county boundary (or inside the county).
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.

Volcanoes within 100 miles

1. U.S. volcanoes within 100 miles, from the USGS Volcano Hazards Program. The threat category is the USGS 2018 National Volcanic Threat Assessment, which ranks volcanoes by how hazardous their past eruptions were and how many people and how much infrastructure lie near them. It is not a forecast of eruption.

USGS Volcano Hazards Program, retrieved October 30, 2026.

Mapped landslides

Mapped by CA GS (33), NASA (2).

1. Landslides mapped in the USGS compilation of landslide inventories across the United States (version 3.0, 2025), rated probable or better. The compilation joins inventories made by federal and state agencies for different purposes and areas, so the number mapped in a county reflects how closely it has been surveyed as much as how often its slopes fail. An area with few records may simply not have been mapped. Deaths are as recorded in the inventories; a slide listed in two inventories is counted once.

USGS Landslide Inventories across the United States, version 3.0, retrieved October 27, 2026.

More event types since 1996

Costliest events since 1996

1. Jan 1, 2023Flood$11.0 million
   National Weather Service narrative

   Yolo County completed a preliminary estimate of damage from flooding, which is around $11 million in damages for the county and its partners.

2. Jan 11, 2017Debris Flow$392,000
   National Weather Service narrative

   State Route 16 in Yolo County was closed from Rumsey Canyon to State Route 20 due to a rock/mud slide blocking the roadway.

3. Jan 8, 2017Debris Flow$365,000
   National Weather Service narrative

   Roadway closed on Highway 16 Yolo - Rumsey to Highway 20 due to rockslide and debris in the roadway.

4. Jan 10, 2023Thunderstorm Wind$20,000
   National Weather Service narrative

   The California Highway Patrol reported a semi-truck overturned and hanging off the side of the Interstate 5 bridge over the Yolo Bypass. A gust of 54 mph was reported at nearby Sacramento International Airport.

5. Apr 8, 2005Thunderstorm Wind$15,000
   National Weather Service narrative

   A strong wind gust associated with a passing thunderstorm caused damage to a residential roof, the doors to a barn, and a property fence.

6. Mar 21, 2023Thunderstorm Wind$10,000
   National Weather Service narrative

   Strong straight-line winds downed multiple trees and utility poles near downtown Woodland. Sacramento International Airport reported a max gust of 46 mph. Time was estimated by radar.

7. Apr 24, 2009Thunderstorm Wind$7,000
   National Weather Service narrative

   A gustnado developed ahead of a line of showers moving through the city of Woodland. The discontinuous damage path was about 1700 feet long and 20 feet across. A tree two feet in diameter was uprooted, a section of metal bleachers were moved, and several tents were damaged. There was minor damage to three mobile homes in a nearby mobile home park, with porches pulled off and large flower pots knocked over.

8. Feb 21, 2005Tornado$2,000
   National Weather Service narrative

   Brief touchdown in the Southport neighborhood of West Sacramento. Primarily tree and fence damage, though other minor damage from flying debris was noted.

9. Jan 17, 2019Flood$2,000
   National Weather Service narrative

   Highway 16 had east and west bound lanes flooded at County Road 89 near Guys Corner. A vehicle was submerged in flood waters. Flooding was first reported at 11 am.

10. Mar 20, 2005Tornado$1,000
    National Weather Service narrative

    Tornado traveled through an agricultural area. Damage was caused to a property fence and to a grove of almond trees.

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

115°FJun 15, 1961

All-time low

18°FDec 22, 1990

Warmest night

78°FJul 23, 2006

Coldest day

29°FDec 14, 1972

Wettest day

5.41 inOct 24, 2021

Snowiest day

2.0 inFeb 5, 1976

Hottest year

2014mean 64.4°F

Coldest year

1982mean 57.7°F

Wettest year

198333.44 in

Driest year

20135.81 in

Snowiest season

2.0 in1975-76

Station Sacramento Airport Asos (USW00023232), 19 ft elevation, 13.6 miles from the population centre. Daily records from 1941 to October 26, 2026; 99.9% 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.

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.

Neighbouring counties

• 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 USW00023232.
• 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.
• Volcanoes USGS Volcano Hazards Program, U.S. volcanoes and 2018 threat assessment.
• Landslides USGS Landslide Inventories across the United States, version 3.0 (2025).
• 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.