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Weather & Climate in East Carbon, UT
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
East Carbon experiences four distinct seasons with an average annual temperature of 51°F (10°C). Winters average 30°F in January while summers reach 74°F in July. The area gets 330 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 15.3 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 5,888 feet.
Temperature
30°F Jan (-1°C)
74°F Jul (23°C)
| Annual Average | 50.6°F |
| 6% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 5,888 ft (1,795 m) |
| Area | 9.0 sq mi (23.2 km²) |
| Population Density | 131/sq mi |
| Coordinates | 39.5330°N, 110.4295°W |
| Timezone | America/Denver |
| County | Carbon County County |
| Nearest Airport | Carbon County Regional/Buck Davis Field (PUC) 18 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 8.7 / 100 |
| Social Vulnerability | 33.6 / 100 |
| Community Resilience | 48.2 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
521 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.3.
| Jun 24, 1992 | 30 km WSW of Emery, Utah | M4.3 | 128 km | 5 km |
| Apr 17, 2003 | 6 km SSW of Levan, Utah | M4.2 | 125 km | 1 km |
| Jul 19, 2001 | 31 km NNE of Fremont, Utah | M4.2 | 130 km | 7 km |
| Mar 7, 2000 | 7 km N of Helper, Utah | M4.2 | 43 km | -3 km |
| Jun 29, 2014 | 6 km SE of Spring City, Utah | M4.2 | 87 km | 9 km |
| May 20, 1995 | 434km E of Wendover, Utah | M4.1 | 145 km | 4 km |
| May 25, 2016 | 15 km NNE of Tabiona, Utah | M4.0 | 108 km | 16 km |
| Apr 7, 1990 | 28 km WNW of Bonanza, Utah | M4.0 | 101 km | 11 km |
| May 1, 2025 | 4 km WNW of Independence, Utah | M3.9 | 115 km | 14 km |
| Jan 6, 1996 | 15 km SE of Castle Dale, Utah | M3.9 | 59 km | 6 km |
| May 31, 2022 | 37 km ENE of Thompson Springs, Utah | M3.8 | 111 km | 7 km |
| Feb 6, 1991 | 7 km WNW of Hiawatha, Utah | M3.8 | 56 km | 5 km |
| Feb 5, 1998 | 7 km N of Helper, Utah | M3.8 | 43 km | -2 km |
| Dec 22, 1999 | 31 km SW of Emery, Utah | M3.7 | 129 km | 2 km |
| Nov 8, 1991 | 17 km WNW of Bonanza, Utah | M3.7 | 112 km | 4 km |
| Mar 2, 1991 | 27 km SSW of Jensen, Utah | M3.7 | 107 km | -3 km |
| Jan 8, 1999 | 31 km SW of Emery, Utah | M3.7 | 129 km | 5 km |
| Jul 31, 2012 | 22 km WNW of Emery, Utah | M3.7 | 108 km | 7 km |
| Jun 9, 2021 | 17 km E of Independence, Utah | M3.7 | 102 km | 10 km |
| Feb 4, 2012 | 12 km E of Woodland Hills, Utah | M3.6 | 106 km | 13 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
19 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3.
| Date | Rating | Distance | Path | Fatalities |
| Aug 11, 1993 | EF3 | 78 km | 17.0 mi | 0 |
| Jun 19, 2022 | EF2 | 47 km | 2.1 mi | 0 |
| Jun 10, 1970 | EF2 | 89 km | 0.1 mi | 0 |
| Nov 2, 1967 | EF2 | 98 km | 0.1 mi | 0 |
| May 4, 1961 | EF2 | 65 km | 9.4 mi | 0 |
| May 28, 2018 | EF0 | 91 km | 0.3 mi | 0 |
| Jul 26, 2010 | EF0 | 27 km | 0.1 mi | 0 |
| Aug 6, 2009 | EF0 | 96 km | 2.2 mi | 0 |
| Jun 8, 2006 | EF0 | 64 km | 0.5 mi | 0 |
| Jun 25, 2005 | EF0 | 85 km | 0.5 mi | 0 |
| Jun 23, 2005 | EF0 | 72 km | 0.5 mi | 0 |
| Aug 8, 2001 | EF0 | 86 km | 2.0 mi | 0 |
| Jul 25, 2001 | EF0 | 34 km | 0.5 mi | 0 |
| May 5, 1993 | EF0 | 95 km | 0.1 mi | 0 |
| Jul 26, 1991 | EF0 | 60 km | 0.1 mi | 0 |
| Jul 26, 1991 | EF0 | 63 km | 0.1 mi | 0 |
| Jul 8, 1990 | EF0 | 90 km | 0.2 mi | 0 |
| Sep 11, 1984 | EF0 | 75 km | 0.1 mi | 0 |
| May 9, 1966 | EF0 | 84 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
1 volcano within 200 km. Closest: Black Rock Desert (189 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Black Rock Desert | Volcanic field | 1,800 m (5,906 ft) | 1290 | 189 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: RATTLE COMPLEX (RATTLE) (87,396 acres, 2002).
| Year | Name | Acres Burned | Distance |
| 2002 | RATTLE COMPLEX (RATTLE) | 87,396 | 81 km |
| 2018 | DOLLAR RIDGE | 69,817 | 75 km |
| 2012 | WOOD HOLLOW | 46,763 | 98 km |
| 2012 | SEELEY | 44,626 | 59 km |
| 2018 | COAL HOLLOW | 30,239 | 87 km |
| 2018 | TRAIL MOUNTAIN | 18,342 | 65 km |
| 1989 | DIAMONDPK | 15,685 | 88 km |
| 2001 | INDIAN SPR | 13,458 | 100 km |
| 2021 | BEAR | 12,660 | 48 km |
| 2017 | TANK HOLLOW | 11,003 | 88 km |
| 2018 | BEAR TRAP | 9,215 | 54 km |
| 2021 | BENNION CREEK | 8,314 | 75 km |
| 2012 | CHURCH CAMP | 7,016 | 45 km |
| 2002 | BLACK CANYON | 6,078 | 62 km |
| 1990 | FLORENCE | 5,123 | 51 km |
| 2007 | JUNGLE | 4,922 | 93 km |
| 2002 | COUNTY LINE | 4,298 | 43 km |
| 2010 | MOONWATER POINT | 4,200 | 48 km |
| 2004 | BIG CANYON | 3,618 | 30 km |
| 1995 | VALLEY CITY 2 | 3,236 | 93 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 0.8 in | Driest |
| February | 28°F (-2°C) | 0.9 in | |
| March | 35°F (2°C) | 1.1 in | |
| April | 42°F (6°C) | 0.9 in | |
| May | 52°F (11°C) | 1.1 in | |
| June | 62°F (16°C) | 0.8 in | |
| July | 74°F (23°C) | 1.3 in | Warmest |
| August | 67°F (20°C) | 1.4 in | Wettest |
| September | 59°F (15°C) | 1.4 in | |
| October | 47°F (8°C) | 1.3 in | |
| November | 35°F (1°C) | 0.9 in | |
| December | 26°F (-4°C) | 0.8 in | Coldest |
East Carbon has a seasonal temperature swing of 48°F / from 26°F in December to 74°F in July. Total annual precipitation is 12.8 inches, with August being the wettest month (1.4") and January the driest (0.8").