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Duncanville, TX
Full City Profile · Texas · Dallas County County
3.1
/5.0
B
Good
39,879
Population
3,561/sq mi density
$71,381
Median Income
$30,420 per capita
$239,200
Home Value
$273,072 Zillow
$1,562
Median Rent
40.0% income on rent
66°F
Avg Temperature
308 sunny days/yr
441
Violent Crime/100K
2,780 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.9 / 5.0
$71,381 median income, 4.5% unemployment
A+
Affordability
4.8 / 5.0
$239,200 home value, $1,562/mo rent
F
Safety
1.0 / 5.0
441 violent crimes/100K (16% above avg)
C+
Education
2.9 / 5.0
23.7% bachelor's degree or higher
Duncanville enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 46°F in January while summers reach 84°F in July. The area gets 308 sunny days per year. Annual precipitation totals 41.1 inches. Air quality is rated Good with a median AQI of 42.
Temperature
46°F Jan (8°C)
84°F Jul (29°C)
| Annual Average | 65.6°F |
| 21% above US avg | |
| January Average | 46°F (8°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 308 days/yr |
Geography
| Elevation | 705 ft (215 m) |
| Area | 11.2 sq mi (29.0 km²) |
| Population Density | 3,561/sq mi |
| Coordinates | 32.6460°N, 96.9139°W |
| Timezone | America/Chicago |
| County | Dallas County County |
| Nearest Airport | Dallas Love Field (DAL) 14 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0469 ppm |
| NO₂ (Nitrogen Dioxide) | 12.9 ppb |
| SO₂ (Sulfur Dioxide) | 0.89 ppb |
| CO (Carbon Monoxide) | 0.20 ppm |
| PM2.5 (Fine Particles) | 9.7 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very High |
| Risk Score | 99.7 / 100 |
| Social Vulnerability | 59.1 / 100 |
| Community Resilience | 13.0 / 100 |
Hazard Breakdown
| Tornado | Very High |
| Hurricane | Relatively Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Low |
| Flood | Very High |
| Hail | Very High |
| Strong Wind | Very High |
| Heat Wave | Very High |
| Winter Weather | Very High |
| Lightning | Very High |
| Ice Storm | Very High |
| Drought | Relatively Low |
| Cold Wave | Very High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 46°F (8°C) | 1.9 in | Coldest, Driest |
| February | 50°F (10°C) | 2.6 in | |
| March | 57°F (14°C) | 3.0 in | |
| April | 65°F (18°C) | 3.7 in | |
| May | 73°F (23°C) | 5.0 in | Wettest |
| June | 80°F (27°C) | 3.3 in | |
| July | 84°F (29°C) | 2.1 in | Warmest |
| August | 84°F (29°C) | 2.1 in | |
| September | 77°F (25°C) | 3.7 in | |
| October | 67°F (19°C) | 3.9 in | |
| November | 55°F (13°C) | 2.4 in | |
| December | 47°F (9°C) | 2.3 in |
Duncanville has a seasonal temperature swing of 39°F / from 46°F in January to 84°F in July. Total annual precipitation is 35.9 inches, with May being the wettest month (5.0") and January the driest (1.9").