Cache County, UT Environment & Hazard Risk

• EarthquakeRelatively Moderate$19.43M/yr expected annual loss, about once every 78 years
• Winter weatherRelatively High$836K/yr expected annual loss, about 37 events a year
• AvalancheRelatively High$3.6M/yr expected annual loss, about once every 3 years
• WildfireRelatively Low$1.07M/yr expected annual loss, about once every 313 years
• LightningRelatively High$1.41M/yr expected annual loss, about 33 events a year
• LandslideRelatively Low$42.81K/yr expected annual loss, about once every 1 year
• DroughtRelatively Low$375K/yr expected annual loss, about 78 events a year
• Heat waveRelatively Low$749K/yr expected annual loss, about once every 2 years
• Cold waveRelatively Low$1.64M/yr expected annual loss, about once every 4 years
• Strong windRelatively Low$346K/yr expected annual loss, about once every 1 year
• TornadoVery Low$394K/yr expected annual loss, about once every 13 years
• Ice stormVery Low$26.8K/yr expected annual loss, about once every 67 years
• HailVery Low$84.21K/yr expected annual loss, about once every 4 years

Bars show the national percentile score (0 to 100) for each hazard. Dollar figures are expected annual losses to buildings, people and crops. Not rated here: coastal flooding, hurricane, riverine flooding, tsunami, volcanic activity.

Check the flood zone for an address

Homes with flood insurance

83 of 34,515 (0.2%)

Homes in high-risk flood zones

740

Insured in high-risk zones

43 (6%)

Flood claims since 1978

42

Claims paid since 1978

$132K

• Thunderstorm Wind66
• Heavy Snow45
• Hail17
• Flood13
• High Wind12
• Winter Storm9
• Strong Wind4
• Avalanche3 · 1 death
• Flash Flood3
• Funnel Cloud3

• Avalanche02/03/2025

  Wasatch Mountains I-80 North

  1 death

  What happened

  A snowmobiler got caught in an avalanche in the Monte Cristo Snowmobile Area near the Rich and Cache county line. The victim's friend called for help, prompting a multi-agency search in which the victim was found deceased around 6:20 p.m. Monday, February 3. Deputies reported the snow was very deep where the avalanche occurred and it took 4 hours to locate the victim. Prior to this event, the northern Utah mountains received 1-2 feet of snow between Friday, January 31 and Sunday, February 2, followed by rising temperatures and strong winds.

• Dust Storm05/13/2026

  Cache Valley/Utah Portion

  7 injured, $100K damage

  What happened

  Strong winds associated with thunderstorms in the areas resulted in periods of blowing dust and reduced visibility. Utah Highway Patrol reported that this dust storm led to a multi-vehicle traffic accident on U.S. Highway 91 in northern Cache County, which resulted in multiple serious injuries. A patrol sergeant reported that injuries included one critical injury, and six serious but non life-threatening injuries. The largest crash(es) were reported near mile marker 44. The incident resulted in the closure of the highway for four hours.

• Flood02/07/2017

  Avon, Cache County

  $4M damage

  What happened

  Significant rainfall and snowmelt caused main stem river flooding along the Bear River, and also overwhelmed drainage systems away from the river across much of Cache County. Many roads were flooded and structurally compromised, with over $2.5 million worth of damage reported to roads alone. Debris and flood waters also caused significant damage to sewage and water control systems. Dozens of homes experienced basement flooding, particularly in Wellsville, Hyrum, and Mendon.

• Avalanche03/28/2023

  Wasatch Mountains I-80 North

  2 injured, $20K damage

  What happened

  At around 11:30 am, a large avalanche occurred near the Gold Ridge / Hardscrabble backcountry area, approximately 7 miles ESE of Farmington. At the time of the avalanche, one snowcat carrying two occupants was caught in the slide and buried. A second snowcat and its five occupants were able to quickly uncover one of the buried snowcat occupants, who had sustained minor head injuries. This occupant was subsequently taken to an area hospital by ambulance. The second occupant was buried with their leg trapped beneath the snowcat, but was uncovered enough that they could breath. When rescue crews arrived, they were able to uncover the buried occupant, who was then transported by helicopter to a nearby hospital with a serious leg injury.

• Winter Storm02/17/2026

  Wasatch Mountains I-80 North

  $500K damage

  What happened

  A powerful winter storm brought heavy snow and strong winds to the area. Reported snow observations include 27 inches of snow in the Logan Mountains (3.1 inches water), 23 inches of snow at Powder Mountain (2.5 inches water), and 18 inches of snow at Snowbasin - Base (1.9 inches of water). Additionally, several SNOTEL stations including Lightning Ridge, Ben Lomond Peak, and Monte Cristo recorded from 1.6 to 2.7 inches of snow water equivalent, resulting in approximately 21 to 37 inches of snow. Some peak wind gust observations through the event include 97 mph at Snowbasin - Straw Top, 78 mph at Snowbasin - Strawberry Tower 15, and 76 mph at Ogden Peak. Inclement conditions also resulted in widespread winter driving conditions along higher elevation routes. Examples include a multi-vehicle pileup on I-80 near the Wyoming border, closure of Sardine Canyon for road snow mitigation, and numerous accidents and slide-offs on I-80 through Parleys Canyon. Incidences of additional accidents and slide-offs are noted elsewhere through the zone.

• Flood05/13/2011

  Nibley, Cache County

  $500K damage

  What happened

  The Blacksmith Fork River experienced flooding again in mid-May, peaking at 1434 cfs on May 16th, well above the flood flow of 934 cfs. Flooding was reported in Logan, Millville, and Hyrum. The bridge in Millville at 2900 South was washed out on both ends, and other low-lying bridges and roadways were impacted. The worst of the damage was at the Country Manor subdivision, where nine homes were flooded and evacuated.

• Thunderstorm Wind54 kt wind06/27/2026

  Smithfield, Cache County

• Hail1" hail06/27/2026

  Cone, Cache County

• Hail1" hail06/27/2026

  Trenton, Cache County

• Thunderstorm Wind63 kt wind05/13/2026

  Richmond, Cache County

• Thunderstorm Wind59 kt wind05/13/2026

  Paradise, Cache County

• Thunderstorm Wind50 kt wind05/13/2026

  Logan, Cache County

• Thunderstorm Wind50 kt wind05/13/2026

  Richmond, Cache County

• Thunderstorm Wind81 kt wind05/13/2026

  Smithfield, Cache County

• Logan City Water SystemServes 55,540 · Groundwater · Local governmentNo health violations
• Hyrum CityServes 10,891 · Groundwater · Local governmentNo health violations
• Smithfield CityServes 10,223 · Groundwater · Local governmentNo health violations+27 monitoring or reporting
• Providence City Water SystemServes 9,690 · Groundwater · Local governmentNo health violations
• Nibley City WaterServes 9,200 · Groundwater · Local governmentNo health violations
• North Logan CityServes 8,500 · Surface water · Local governmentNo health violations+1 monitoring or reporting
• Hyde Park City Water SystemServes 5,200 · Groundwater · Local governmentNo health violations+18 monitoring or reporting
• Wellsville City Water SystemServes 4,190 · Groundwater · Local governmentNo health violations