Alta, UT
Full City Profile · Utah · Salt Lake County County
4.5
/5.0
A+
Excellent
337
Population
75/sq mi density
$2,000,001
Home Value
$2,114,481 Zillow
39°F
Avg Temperature
A+
Overall
4.5 / 5.0
Strong
A
Education
4.5 / 5.0
43.2% bachelor's degree or higher
Alta has a cool climate with an average annual temperature of 39°F (4°C). Winters average 23°F in January while summers reach 62°F in July. Annual precipitation totals 47.1 inches. The area receives 458.3 inches of snow annually. Air quality is rated Moderate with a median AQI of 54.
Temperature
23°F Jan (-5°C)
62°F Jul (16°C)
| Annual Average | 39.1°F |
| 28% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 62°F (16°C) |
Geography
| Elevation | 9,261 ft (2,823 m) |
| Area | 4.5 sq mi (11.7 km²) |
| Population Density | 75/sq mi |
| Coordinates | 40.5824°N, 111.6203°W |
| Timezone | America/Denver |
| County | Salt Lake County County |
| Nearest Airport | Salt Lake City International (SLC) 24 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 54.0 |
| Rating | Moderate |
| Good Days % | 41.0% |
| Unhealthy Days | 43 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0447 ppm |
| NO₂ (Nitrogen Dioxide) | 17.4 ppb |
| SO₂ (Sulfur Dioxide) | 0.92 ppb |
| CO (Carbon Monoxide) | 0.17 ppm |
| PM2.5 (Fine Particles) | 7.5 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 98.6 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 66.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Earthquake | Relatively High |
| Wildfire | Relatively High |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Coastal Flood | No Rating |
| Volcano | Very Low |
| Avalanche | Very High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
1 volcano within 200 km. Closest: Black Rock Desert (194 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Black Rock Desert | Volcanic field | 1,800 m (5,906 ft) | 1290 | 194 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 6.4 in | Wettest |
| February | 23°F (-5°C) | 5.4 in | |
| March | 29°F (-2°C) | 6.2 in | |
| April | 34°F (1°C) | 4.8 in | |
| May | 43°F (6°C) | 3.5 in | |
| June | 53°F (12°C) | 2.0 in | |
| July | 62°F (16°C) | 1.5 in | Warmest, Driest |
| August | 60°F (16°C) | 2.1 in | |
| September | 52°F (11°C) | 2.6 in | |
| October | 40°F (5°C) | 3.5 in | |
| November | 29°F (-2°C) | 4.2 in | |
| December | 22°F (-5°C) | 5.1 in | Coldest |
Alta has a seasonal temperature swing of 39°F / from 22°F in December to 62°F in July. Total annual precipitation is 47.1 inches, with January being the wettest month (6.4") and July the driest (1.5").