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Weather & Climate in Marion, UT
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Marion has a cool climate with an average annual temperature of 45°F (7°C). Winters average 25°F in January while summers reach 67°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 16.6 inches (drier than the 38-inch national average). The area receives 96.9 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 6,478 feet.
Temperature
25°F Jan (-4°C)
67°F Jul (20°C)
| Annual Average | 44.6°F |
| 17% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 67°F (20°C) |
| Sunny Days | 316 days/yr |
Geography
| Elevation | 6,478 ft (1,974 m) |
| Area | 5.8 sq mi (15.1 km²) |
| Population Density | 145/sq mi |
| Coordinates | 40.6810°N, 111.2773°W |
| Timezone | America/Denver |
| County | Wasatch County County |
| Nearest Airport | Salt Lake City International (SLC) 37 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 33.5 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 83.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Moderate |
| Volcano | Very Low |
| Avalanche | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
480 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.7.
| Mar 18, 2020 | 5 km NNE of Magna, Utah | M5.7 | 68 km | 12 km |
| Apr 15, 2010 | 9 km NE of Randolph, Utah | M4.9 | 116 km | 10 km |
| Mar 18, 2020 | 6 km NNE of Magna, Utah | M4.6 | 67 km | 9 km |
| Mar 18, 2020 | 5 km NE of Magna, Utah | M4.6 | 66 km | 11 km |
| May 5, 2024 | 16 km SW of Thatcher, Utah | M4.4 | 138 km | 7 km |
| Apr 17, 2003 | 6 km SSW of Levan, Utah | M4.2 | 141 km | 1 km |
| Apr 16, 2020 | 4 km NE of Magna, Utah | M4.2 | 66 km | 10 km |
| Mar 18, 2020 | 1 km NNW of Magna, Utah | M4.2 | 70 km | 9 km |
| Apr 15, 2020 | 4 km NE of Magna, Utah | M4.2 | 66 km | 9 km |
| Mar 16, 1992 | 6 km S of Herriman, Utah | M4.2 | 70 km | 12 km |
| Mar 7, 2000 | 7 km N of Helper, Utah | M4.2 | 110 km | -3 km |
| Jun 29, 2014 | 6 km SE of Spring City, Utah | M4.2 | 139 km | 9 km |
| May 25, 2016 | 15 km NNE of Tabiona, Utah | M4.0 | 57 km | 16 km |
| Mar 18, 2020 | 4 km NNE of Magna, Utah | M4.0 | 68 km | 7 km |
| Jun 3, 2009 | 5 km WNW of Riverside, Utah | M4.0 | 148 km | 9 km |
| Mar 23, 2020 | 8 km NNE of Magna, Utah | M3.9 | 66 km | 10 km |
| May 1, 2025 | 4 km WNW of Independence, Utah | M3.9 | 41 km | 14 km |
| Mar 18, 2020 | 4 km NNE of Magna, Utah | M3.9 | 68 km | 9 km |
| May 4, 2024 | 16 km SW of Thatcher, Utah | M3.9 | 138 km | 6 km |
| Mar 18, 2020 | 6 km NE of Magna, Utah | M3.9 | 66 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
50 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 1 fatality, 96 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Aug 11, 1993 | EF3 | 95 km | 17.0 mi | 0 |
| Jun 19, 2022 | EF2 | 100 km | 2.1 mi | 0 |
| Aug 11, 1999 | EF2 | 50 km | 4.3 mi | 1 |
| Aug 14, 1968 | EF2 | 92 km | 1.5 mi | 0 |
| Feb 9, 1965 | EF2 | 70 km | 0.1 mi | 0 |
| Jun 3, 1963 | EF2 | 55 km | 2.0 mi | 0 |
| May 10, 1950 | EF2 | 91 km | 2.0 mi | 0 |
| Sep 2, 2021 | EF1 | 58 km | 2.1 mi | 0 |
| Sep 22, 2016 | EF1 | 82 km | 2.9 mi | 0 |
| Aug 20, 1998 | EF1 | 62 km | 0.1 mi | 0 |
| May 29, 1996 | EF1 | 90 km | 1.3 mi | 0 |
| Jun 2, 1993 | EF1 | 57 km | 1.0 mi | 0 |
| May 3, 1993 | EF1 | 87 km | 0.1 mi | 0 |
| Sep 23, 1992 | EF1 | 80 km | 2.0 mi | 0 |
| Jul 25, 1991 | EF1 | 83 km | 10.0 mi | 0 |
| Jul 8, 1989 | EF1 | 53 km | 0.2 mi | 0 |
| Mar 2, 1989 | EF1 | 69 km | 0.2 mi | 0 |
| Jan 10, 1989 | EF1 | 52 km | 0.2 mi | 0 |
| Dec 2, 1970 | EF1 | 40 km | 1.0 mi | 0 |
| Aug 14, 1968 | EF1 | 52 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: EAST FORK (106,432 acres, 2020).
| Year | Name | Acres Burned | Distance |
| 2020 | EAST FORK | 106,432 | 58 km |
| 2018 | POLE CREEK | 102,426 | 81 km |
| 2018 | DOLLAR RIDGE | 69,817 | 72 km |
| 2018 | COAL HOLLOW | 30,239 | 84 km |
| 2018 | BALD MOUNTAIN | 21,016 | 91 km |
| 2016 | WEST ANTELOPE | 15,483 | 83 km |
| 2002 | GARDEN VALLEY COMPLEX (EAST FORK) | 14,245 | 50 km |
| 2020 | KNOLLS | 12,948 | 71 km |
| 2017 | TANK HOLLOW | 11,003 | 75 km |
| 2019 | GOOSE POINT | 9,186 | 82 km |
| 2001 | BEEF HOLLOW | 9,062 | 65 km |
| 2007 | MM COMPLEX | 8,767 | 72 km |
| 1999 | WEST MOUNTAIN II | 8,476 | 81 km |
| 2021 | BENNION CREEK | 8,314 | 94 km |
| 1996 | SOLDIER PASS | 8,010 | 73 km |
| 2003 | CASCADE II | 7,943 | 34 km |
| 2001 | MOLLIE | 7,850 | 91 km |
| 1998 | FAUST | 6,957 | 94 km |
| 2003 | CHERRY CREEK 2 | 6,443 | 54 km |
| 2010 | WINDMILL | 5,935 | 82 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 1.4 in | |
| February | 25°F (-4°C) | 1.4 in | |
| March | 30°F (-1°C) | 1.3 in | |
| April | 37°F (3°C) | 1.4 in | |
| May | 45°F (7°C) | 1.5 in | Wettest |
| June | 54°F (12°C) | 1.2 in | Driest |
| July | 67°F (20°C) | 1.2 in | Warmest |
| August | 61°F (16°C) | 1.3 in | |
| September | 53°F (12°C) | 1.5 in | |
| October | 43°F (6°C) | 1.5 in | |
| November | 31°F (-1°C) | 1.5 in | |
| December | 23°F (-5°C) | 1.5 in | Coldest |
Marion has a seasonal temperature swing of 44°F / from 23°F in December to 67°F in July. Total annual precipitation is 16.8 inches, with May being the wettest month (1.5") and June the driest (1.2").