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Weather & Climate in Trenton, UT

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Trenton experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 22°F in January while summers reach 70°F in July. The area gets 316 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 16.9 inches (drier than the 38-inch national average). The area receives 49.0 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 4,463 feet.

Temperature

22°F Jan (-6°C) 70°F Jul (21°C)
Annual Average45.9°F
15% below US avg
January Average22°F (-6°C)
July Average70°F (21°C)
Sunny Days316 days/yr

Geography

Elevation4,463 ft (1,360 m)
Area7.3 sq mi (19.0 km²)
Population Density65/sq mi
Coordinates41.9139°N, 111.9358°W
TimezoneAmerica/Denver
CountyCache County County
Nearest AirportBrigham City Regional (BMC)
26 miles away

Precipitation & Snow

Annual Rainfall 16.9"
56% below US avg
Snowfall 49.0"
Wettest Month (May) 2.17"
Driest Month (Aug) 0.91"

Air Quality

AQI Median41.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score66.5 / 100
Social Vulnerability10.6 / 100
Community Resilience76.5 / 100

Hazard Breakdown

Tornado Very Low
Earthquake Relatively Moderate
Wildfire Relatively Low
Flood Relatively Low
Hail Very Low
Strong Wind Relatively Low
Heat Wave Relatively Low
Winter Weather Relatively High
Lightning Relatively High
Ice Storm Very Low
Drought Relatively Low
Cold Wave Relatively Low
Landslide Relatively Low
Avalanche Relatively High
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

1,317 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.8.

Feb 3, 1994 4 km SSE of Auburn, Wyoming M5.8 123 km 8 km
Mar 18, 2020 5 km NNE of Magna, Utah M5.7 130 km 12 km
Apr 21, 2001 29 km WSW of Freedom, Idaho M5.3 121 km 1 km
Sep 2, 2017 12 km E of Soda Springs, Idaho M5.3 91 km 10 km
Sep 10, 2017 9 km NNW of Georgetown, Idaho M5.0 84 km 10 km
Apr 15, 2010 9 km NE of Randolph, Utah M4.9 73 km 10 km
Feb 11, 1994 3 km SSE of Auburn, Wyoming M4.8 122 km 5 km
Sep 10, 2017 12 km ESE of Soda Springs, Idaho M4.7 86 km 5 km
Sep 11, 2017 9 km NW of Georgetown, Idaho M4.7 81 km 8 km
Sep 3, 2017 15 km ESE of Soda Springs, Idaho M4.7 88 km 10 km
Feb 4, 1994 4 km WNW of Fairview, Wyoming M4.7 116 km 5 km
Sep 3, 2017 10 km E of Soda Springs, Idaho M4.7 89 km 8 km
Nov 4, 1992 67 km ENE of Montello, Nevada M4.7 134 km 9 km
Sep 6, 2017 11 km NNW of Georgetown, Idaho M4.6 84 km 10 km
Mar 18, 2020 6 km NNE of Magna, Utah M4.6 129 km 9 km
Mar 18, 2020 5 km NE of Magna, Utah M4.6 130 km 11 km
Feb 7, 1994 4 km SW of Fairview, Wyoming M4.5 112 km 5 km
Sep 4, 2017 13 km ESE of Soda Springs, Idaho M4.5 88 km 6 km
Feb 3, 1994 13 km WSW of Auburn, Wyoming M4.4 112 km 5 km
Feb 10, 1994 3 km WSW of Auburn, Wyoming M4.4 121 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

41 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 16 injuries.

Date Rating Distance Path Fatalities
Aug 14, 1968 EF2 75 km 1.5 mi 0
Sep 22, 2016 EF1 84 km 2.9 mi 0
Aug 20, 1998 EF1 86 km 0.1 mi 0
May 29, 1996 EF1 68 km 1.3 mi 0
Jun 11, 1993 EF1 89 km 10.0 mi 0
Sep 23, 1992 EF1 93 km 2.0 mi 0
Sep 17, 1989 EF1 7 km 0.2 mi 0
May 29, 1987 EF1 10 km 0.2 mi 0
May 21, 1986 EF1 59 km 0.5 mi 0
May 21, 1986 EF1 40 km 5.0 mi 0
Aug 18, 1983 EF1 90 km 2.5 mi 0
Jun 30, 1982 EF1 21 km 1.2 mi 0
May 6, 1981 EF1 7 km 0.5 mi 0
Jun 23, 1965 EF1 80 km 0.6 mi 0
May 25, 1954 EF1 52 km 0.5 mi 0
Jun 23, 2023 EF0 83 km 0.2 mi 0
May 28, 2018 EF0 65 km 0.1 mi 0
Jul 31, 2016 EF0 92 km 1.7 mi 0
Jul 7, 2013 EF0 62 km 1.0 mi 0
May 3, 2009 EF0 57 km 1.0 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 3.6 m (12 ft).

Year Location Cause Max Wave Deaths Distance
1909 UTAH Earthquake 3.6 m — 65 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

2 volcanoes within 200 km. Closest: Wapi Lava Field (151 km).

Name Type Elevation Last Eruption Distance
Wapi Lava Field Shield 1,604 m (5,262 ft) -300 151 km
Hell's Half Acre Shield 1,631 m (5,351 ft) -3250 181 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: STONE 2 (50,677 acres, 2006).

Year Name Acres Burned Distance
2006 STONE 2 50,677 73 km
2001 UNNAMED 38,647 65 km
1994 ELEVATOR 31,854 37 km
2013 STATE 31,011 36 km
2016 BROAD MOUTH 21,009 31 km
1996 GOLDEN SPIKE 16,186 65 km
2007 CLEVELAND 16,172 46 km
1999 BRIDGER BA 15,227 88 km
2018 GORING 14,538 35 km
2018 NORTH EDEN 14,398 72 km
2007 RED CANYON RX BURN-H 13,464 100 km
2007 COW CANYON 13,447 82 km
2017 WILDCAT 13,100 93 km
1992 MEADOW DIVIDE 12,968 79 km
2000 TAYLOR 12,633 56 km
1988 METCALF 11,946 56 km
2000 MOONSHINE 11,489 99 km
1994 DRY CANYON 2 10,927 62 km
2007 MITCHELL 10,466 81 km
2006 BURNT 9,103 90 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 22°F (-6°C) 1.4 in Coldest
February 27°F (-3°C) 1.3 in
March 38°F (3°C) 1.6 in
April 46°F (8°C) 1.7 in
May 55°F (13°C) 2.2 in Wettest
June 64°F (18°C) 1.2 in
July 70°F (21°C) 0.9 in Warmest
August 70°F (21°C) 0.9 in Driest
September 60°F (15°C) 1.3 in
October 48°F (9°C) 1.7 in
November 35°F (2°C) 1.3 in
December 24°F (-4°C) 1.3 in

Trenton has a seasonal temperature swing of 48°F / from 22°F in January to 70°F in July. Total annual precipitation is 16.8 inches, with May being the wettest month (2.2") and August the driest (0.9").

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