Plain City, UT
Full City Profile · Utah · Davis County County
4.3
/5.0
A
Great
8,101
Population
669/sq mi density
$126,250
Median Income
$42,479 per capita
$532,300
Home Value
$629,758 Zillow
$2,184
Median Rent
27.1% income on rent
52°F
Avg Temperature
A
Overall
4.3 / 5.0
Strong
A+
Economy
5.0 / 5.0
$126,250 median income, 1.0% unemployment
A
Affordability
4.3 / 5.0
$532,300 home value, $2,184/mo rent
B+
Education
3.5 / 5.0
31.5% bachelor's degree or higher
Plain City experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 29°F in January while summers reach 78°F in July. Annual precipitation totals 16.4 inches. The area receives 107.9 inches of snow annually. Air quality is rated Good with a median AQI of 46.
Temperature
29°F Jan (-2°C)
78°F Jul (26°C)
| Annual Average | 51.7°F |
| 4% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 78°F (26°C) |
Geography
| Elevation | 4,217 ft (1,285 m) |
| Area | 12.0 sq mi (31.0 km²) |
| Population Density | 669/sq mi |
| Coordinates | 41.3067°N, 112.0943°W |
| Timezone | America/Denver |
| County | Davis County County |
| Nearest Airport | Brigham City Regional (BMC) 17 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 46.0 |
| Rating | Good |
| Good Days % | 63.9% |
| Unhealthy Days | 15 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0457 ppm |
| NO₂ (Nitrogen Dioxide) | 16.6 ppb |
| PM2.5 (Fine Particles) | 6.9 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 87.8 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 97.9 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Very High |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Moderate |
| Coastal Flood | No Rating |
| Volcano | Very Low |
| Avalanche | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
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 | - | 75 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
1 volcano within 200 km. Closest: Wapi Lava Field (198 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Wapi Lava Field | Shield | 1,604 m (5,262 ft) | -300 | 198 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 1.5 in | Coldest |
| February | 33°F (1°C) | 1.6 in | |
| March | 43°F (6°C) | 1.7 in | |
| April | 49°F (10°C) | 2.0 in | |
| May | 59°F (15°C) | 2.2 in | Wettest |
| June | 68°F (20°C) | 1.1 in | |
| July | 78°F (26°C) | 0.4 in | Warmest, Driest |
| August | 76°F (24°C) | 0.7 in | |
| September | 65°F (19°C) | 1.1 in | |
| October | 52°F (11°C) | 1.7 in | |
| November | 40°F (4°C) | 1.2 in | |
| December | 30°F (-1°C) | 1.3 in |
Plain City has a seasonal temperature swing of 50°F / from 29°F in January to 78°F in July. Total annual precipitation is 16.4 inches, with May being the wettest month (2.2") and July the driest (0.4").