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Weather & Climate in Alton, UT
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Alton experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 33°F in January while summers reach 73°F in July. The area gets 318 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 7,278 feet.
Temperature
33°F Jan (1°C)
73°F Jul (23°C)
| Annual Average | 51.9°F |
| 4% below US avg | |
| January Average | 33°F (1°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 318 days/yr |
Geography
| Elevation | 7,278 ft (2,218 m) |
| Area | 2.1 sq mi (5.5 km²) |
| Population Density | 135/sq mi |
| Coordinates | 37.4265°N, 112.5103°W |
| Timezone | America/Denver |
| County | Kane County County |
| Nearest Airport | Cedar City Regional (CDC) 37 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 39.7 / 100 |
| Social Vulnerability | 25.9 / 100 |
| Community Resilience | 44.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Moderate |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
643 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.9.
| Sep 2, 1992 | 3 km SSE of Washington, Utah | M5.9 | 95 km | 14 km |
| Apr 20, 1991 | 19 km SE of Minersville, Utah | M4.6 | 76 km | 10 km |
| Jan 3, 2011 | 10 km NW of Circleville, Utah | M4.6 | 92 km | 11 km |
| Jul 29, 2024 | 24 km S of Brian Head, Utah | M4.5 | 31 km | 20 km |
| Jan 2, 1998 | 10 km ESE of Beaver, Utah | M4.4 | 91 km | 12 km |
| Sep 19, 2022 | 45 km ESE of Littlefield, Arizona | M4.4 | 121 km | 10 km |
| Jan 15, 2016 | 19 km WSW of Enterprise, Utah | M4.2 | 125 km | 1 km |
| Jun 29, 1992 | 12 km WNW of Cedar City, Utah | M4.2 | 69 km | -3 km |
| Apr 12, 2012 | 16 km NNE of Bryce Canyon City, Utah | M4.2 | 56 km | 15 km |
| Jun 29, 1992 | 12 km WNW of Cedar City, Utah | M4.2 | 68 km | 7 km |
| Jan 28, 2014 | 37 km W of Veyo, Utah | M4.1 | 143 km | 7 km |
| Oct 22, 1999 | 20 km SE of Minersville, Utah | M4.1 | 77 km | 6 km |
| Jan 4, 2010 | 8 km S of Cedar City, Utah | M4.1 | 52 km | 9 km |
| Jul 4, 2015 | Utah | M4.1 | 47 km | 3 km |
| Feb 20, 2019 | 8 km SW of Kanosh, Utah | M4.0 | 146 km | 8 km |
| Sep 6, 1994 | 12 km SSW of Circleville, Utah | M4.0 | 73 km | 6 km |
| Jan 29, 2014 | 37 km W of Veyo, Utah | M4.0 | 142 km | 7 km |
| Jan 26, 1991 | 22 km SE of Escalante, Utah | M4.0 | 100 km | 22 km |
| Feb 23, 2001 | 12 km SW of Kanosh, Utah | M4.0 | 144 km | 2 km |
| Jan 30, 1998 | 19 km NNW of Panguitch, Utah | M4.0 | 62 km | 7 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
14 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1.
| Date | Rating | Distance | Path | Fatalities |
| Sep 22, 2016 | EF1 | 46 km | 0.8 mi | 0 |
| Dec 27, 1983 | EF1 | 65 km | 0.4 mi | 0 |
| Mar 31, 1978 | EF1 | 62 km | 0.5 mi | 0 |
| Aug 12, 1976 | EF1 | 67 km | 0.1 mi | 0 |
| Aug 26, 2016 | EF0 | 43 km | 0.3 mi | 0 |
| Aug 24, 2011 | EF0 | 70 km | 1.1 mi | 0 |
| Sep 8, 2000 | EF0 | 44 km | 2.0 mi | 0 |
| Jul 23, 1998 | EF0 | 88 km | 0.1 mi | 0 |
| May 14, 1998 | EF0 | 93 km | 0.1 mi | 0 |
| Aug 31, 1992 | EF0 | 97 km | 0.3 mi | 0 |
| May 21, 1992 | EF0 | 100 km | 0.3 mi | 0 |
| Sep 7, 1991 | EF0 | 95 km | 0.1 mi | 0 |
| Jun 16, 1967 | EF0 | 64 km | 0.1 mi | 0 |
| Jul 14, 1953 | EF0 | 66 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Markagunt Plateau (22 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Markagunt Plateau | Volcanic field | 2,840 m (9,318 ft) | 1050 | 22 km |
| Uinkaret Field | Volcanic field | 1,555 m (5,102 ft) | 1100 | 129 km |
| Black Rock Desert | Volcanic field | 1,800 m (5,906 ft) | 1290 | 172 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: SANFORD (81,854 acres, 2002).
| Year | Name | Acres Burned | Distance |
| 2002 | SANFORD | 81,854 | 64 km |
| 2017 | BRIANHEAD | 74,276 | 43 km |
| 2020 | MANGUM | 71,634 | 79 km |
| 2006 | WARM | 58,255 | 94 km |
| 1996 | BRIDGER KNOLL | 35,478 | 99 km |
| 2012 | BABOON | 20,453 | 91 km |
| 2019 | NECK | 19,545 | 89 km |
| 1996 | JUMP | 19,411 | 88 km |
| 2006 | KOLOB | 17,036 | 57 km |
| 2005 | BLUE SPRING | 13,285 | 71 km |
| 2007 | GREENVILLE | 13,043 | 82 km |
| 2009 | MILL FLAT | 12,708 | 75 km |
| 2020 | TURKEY FARM ROAD | 11,945 | 94 km |
| 2018 | WEST VALLEY | 11,914 | 77 km |
| 2020 | PINE HOLLOW | 11,552 | 62 km |
| 2005 | DAMMERON COMPLEX (DAMMERON) | 9,393 | 95 km |
| 2005 | DIAMOND COMPLEX (DIAMOND VALLEY) | 9,382 | 98 km |
| 1986 | OAK GROVE | 8,532 | 80 km |
| 2011 | WRANGLER | 8,505 | 95 km |
| 1996 | WILDCAT | 8,249 | 44 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (1°C) | 1.6 in | |
| February | 29°F (-2°C) | 1.7 in | |
| March | 34°F (1°C) | 1.9 in | |
| April | 41°F (5°C) | 1.1 in | |
| May | 49°F (9°C) | 0.9 in | |
| June | 58°F (15°C) | 0.6 in | Driest |
| July | 73°F (23°C) | 1.5 in | Warmest |
| August | 63°F (17°C) | 1.9 in | Wettest |
| September | 56°F (13°C) | 1.4 in | |
| October | 46°F (8°C) | 1.4 in | |
| November | 35°F (1°C) | 1.5 in | |
| December | 28°F (-2°C) | 1.3 in | Coldest |
Alton has a seasonal temperature swing of 46°F / from 28°F in December to 73°F in July. Total annual precipitation is 16.8 inches, with August being the wettest month (1.9") and June the driest (0.6").