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Lewisville, TX
Full City Profile · Texas · Collin County County
3.5
/5.0
B+
Good
128,313
Population
3,156/sq mi density
$85,002
Median Income
$44,410 per capita
$350,200
Home Value
$390,585 Zillow
$1,572
Median Rent
29.7% income on rent
68°F
Avg Temperature
302 sunny days/yr
221
Violent Crime/100K
1,968 property/100K
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$85,002 median income, 2.8% unemployment
A
Affordability
4.4 / 5.0
$350,200 home value, $1,572/mo rent
F
Safety
1.0 / 5.0
221 violent crimes/100K
A
Education
4.2 / 5.0
39.4% bachelor's degree or higher
Lewisville enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 51°F in January while summers reach 87°F in July. The area gets 302 sunny days per year. Annual precipitation totals 50.3 inches. The area receives 0.4 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
51°F Jan (10°C)
87°F Jul (30°C)
| Annual Average | 68.1°F |
| 26% above US avg | |
| January Average | 51°F (10°C) |
| July Average | 87°F (30°C) |
| Sunny Days | 302 days/yr |
Geography
| Elevation | 486 ft (148 m) |
| Area | 40.7 sq mi (105.3 km²) |
| Population Density | 3,156/sq mi |
| Coordinates | 33.0507°N, 96.9746°W |
| Timezone | America/Chicago |
| County | Collin County County |
| Nearest Airport | Dallas-Fort Worth International (DFW) 11 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0507 ppm |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 98.9 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 58.4 / 100 |
Hazard Breakdown
| Tornado | Very High |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively High |
| Hail | Very High |
| Strong Wind | Relatively High |
| Heat Wave | Relatively High |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 51°F (10°C) | 1.9 in | Driest |
| February | 49°F (9°C) | 2.4 in | |
| March | 56°F (14°C) | 3.2 in | |
| April | 64°F (18°C) | 3.7 in | |
| May | 72°F (22°C) | 5.4 in | Wettest |
| June | 80°F (27°C) | 3.7 in | |
| July | 87°F (30°C) | 2.4 in | Warmest |
| August | 84°F (29°C) | 2.2 in | |
| September | 77°F (25°C) | 3.9 in | |
| October | 67°F (19°C) | 3.8 in | |
| November | 55°F (13°C) | 2.5 in | |
| December | 47°F (8°C) | 2.1 in | Coldest |
Lewisville has a seasonal temperature swing of 40°F / from 47°F in December to 87°F in July. Total annual precipitation is 37.3 inches, with May being the wettest month (5.4") and January the driest (1.9").