Dexter, MI
Full City Profile · Michigan · Washtenaw County County
4.8
/5.0
A+
Excellent
4,495
Population
2,317/sq mi density
$103,182
Median Income
$58,381 per capita
$401,800
Home Value
$511,930 Zillow
$1,603
Median Rent
33.8% income on rent
48°F
Avg Temperature
A+
Overall
4.8 / 5.0
Strong
A+
Economy
4.9 / 5.0
$103,182 median income, 2.5% unemployment
A
Affordability
4.5 / 5.0
$401,800 home value, $1,603/mo rent
A+
Education
5.0 / 5.0
70.3% bachelor's degree or higher
Dexter experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 24°F in January while summers reach 71°F in July. Annual precipitation totals 29.8 inches. The area receives 32.9 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
24°F Jan (-5°C)
71°F Jul (21°C)
| Annual Average | 47.8°F |
| 11% below US avg | |
| January Average | 24°F (-5°C) |
| July Average | 71°F (21°C) |
Geography
| Elevation | 936 ft (285 m) |
| Area | 1.9 sq mi (5.0 km²) |
| Population Density | 2,317/sq mi |
| Coordinates | 42.3323°N, 83.8810°W |
| Timezone | America/Detroit |
| County | Washtenaw County County |
| Nearest Airport | Detroit Metro Wayne County (DTW) 28 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
| Good Days % | 69.1% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0447 ppm |
| PM2.5 (Fine Particles) | 10.3 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 89.3 / 100 |
| Social Vulnerability | 21.5 / 100 |
| Community Resilience | 97.0 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | No Rating |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 1.5 m (5 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1952 | LAKE HURON, MI | Avalanche | 1.5 m | - | 148 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-5°C) | 1.7 in | Coldest |
| February | 25°F (-4°C) | 1.5 in | Driest |
| March | 35°F (2°C) | 2.0 in | |
| April | 47°F (8°C) | 3.0 in | |
| May | 58°F (14°C) | 3.4 in | |
| June | 66°F (19°C) | 3.6 in | Wettest |
| July | 71°F (21°C) | 3.2 in | Warmest |
| August | 69°F (21°C) | 2.7 in | |
| September | 61°F (16°C) | 2.8 in | |
| October | 50°F (10°C) | 2.2 in | |
| November | 39°F (4°C) | 2.1 in | |
| December | 29°F (-2°C) | 1.7 in |
Dexter has a seasonal temperature swing of 47°F / from 24°F in January to 71°F in July. Total annual precipitation is 29.8 inches, with June being the wettest month (3.6") and February the driest (1.5").