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Plymouth, UT
Full City Profile · Utah · Davis County County
3.1
/5.0
B
Good
394
Population
453/sq mi density
$83,393
Median Income
$35,542 per capita
$345,700
Home Value
$394,049 Zillow
$588
Median Rent
21.3% income on rent
49°F
Avg Temperature
316 sunny days/yr
201
Violent Crime/100K
3,038 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$83,393 median income, 0.7% unemployment
A
Affordability
4.3 / 5.0
$345,700 home value, $588/mo rent
F
Safety
1.0 / 5.0
201 violent crimes/100K
C
Education
2.3 / 5.0
15.8% bachelor's degree or higher
Plymouth experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 24°F in January while summers reach 75°F in July. The area gets 316 sunny days per year. Annual precipitation totals 16.9 inches. The area receives 38.5 inches of snow annually. Air quality is rated Good with a median AQI of 41.
Temperature
24°F Jan (-4°C)
75°F Jul (24°C)
| Annual Average | 48.8°F |
| 10% below US avg | |
| January Average | 24°F (-4°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 316 days/yr |
Geography
| Elevation | 4,467 ft (1,362 m) |
| Area | 0.7 sq mi (1.7 km²) |
| Population Density | 453/sq mi |
| Coordinates | 41.8736°N, 112.1468°W |
| Timezone | America/Denver |
| County | Davis County County |
| Nearest Airport | Brigham City Regional (BMC) 22 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
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 | — | 47 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Wapi Lava Field (143 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Wapi Lava Field | Shield | 1,604 m (5,262 ft) | -300 | 143 km |
| Hell's Half Acre | Shield | 1,631 m (5,351 ft) | -3250 | 183 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-4°C) | 1.5 in | |
| February | 27°F (-3°C) | 1.4 in | |
| March | 36°F (2°C) | 1.7 in | |
| April | 44°F (6°C) | 1.7 in | |
| May | 52°F (11°C) | 2.1 in | Wettest |
| June | 62°F (16°C) | 1.3 in | |
| July | 75°F (24°C) | 1.0 in | Warmest |
| August | 69°F (21°C) | 1.0 in | Driest |
| September | 59°F (15°C) | 1.3 in | |
| October | 47°F (9°C) | 1.6 in | |
| November | 34°F (1°C) | 1.5 in | |
| December | 24°F (-4°C) | 1.4 in | Coldest |
Plymouth has a seasonal temperature swing of 50°F / from 24°F in December to 75°F in July. Total annual precipitation is 17.4 inches, with May being the wettest month (2.1") and August the driest (1.0").