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Sweeny, TX
Full City Profile · Texas · Brazoria County County
3.2
/5.0
B
Good
3,592
Population
1,805/sq mi density
$64,557
Median Income
$43,961 per capita
$180,700
Home Value
$231,019 Zillow
$1,238
Median Rent
23.2% income on rent
70°F
Avg Temperature
314 sunny days/yr
214
Violent Crime/100K
1,816 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.2 / 5.0
$64,557 median income, 1.0% unemployment
A+
Affordability
5.0 / 5.0
$180,700 home value, $1,238/mo rent
F
Safety
1.0 / 5.0
214 violent crimes/100K
C+
Education
2.6 / 5.0
19.4% bachelor's degree or higher
Sweeny enjoys a temperate climate with an average annual temperature of 70°F (21°C). Winters average 53°F in January while summers reach 83°F in July. The area gets 314 sunny days per year. Annual precipitation totals 50.2 inches. The area receives 0.1 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
53°F Jan (12°C)
83°F Jul (28°C)
| Annual Average | 69.5°F |
| 29% above US avg | |
| January Average | 53°F (12°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 314 days/yr |
Geography
| Elevation | 28 ft (9 m) |
| Area | 2.0 sq mi (5.2 km²) |
| Population Density | 1,805/sq mi |
| Coordinates | 29.0464°N, 95.6985°W |
| Timezone | America/Chicago |
| County | Brazoria County County |
| Nearest Airport | Bay City Regional (BBC) 11 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0382 ppm |
| NO₂ (Nitrogen Dioxide) | 6.4 ppb |
| SO₂ (Sulfur Dioxide) | 0.55 ppb |
| PM2.5 (Fine Particles) | 8.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 93.6 / 100 |
| Social Vulnerability | 24.0 / 100 |
| Community Resilience | 82.0 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively High |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very Low |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 53°F (12°C) | 3.6 in | Coldest |
| February | 56°F (13°C) | 2.9 in | |
| March | 62°F (17°C) | 2.6 in | Driest |
| April | 68°F (20°C) | 2.8 in | |
| May | 75°F (24°C) | 4.8 in | |
| June | 81°F (27°C) | 5.3 in | |
| July | 83°F (28°C) | 4.5 in | Warmest |
| August | 83°F (28°C) | 4.3 in | |
| September | 79°F (26°C) | 6.4 in | Wettest |
| October | 71°F (22°C) | 4.2 in | |
| November | 62°F (17°C) | 4.1 in | |
| December | 56°F (13°C) | 3.4 in |
Sweeny has a seasonal temperature swing of 30°F / from 53°F in January to 83°F in July. Total annual precipitation is 48.7 inches, with September being the wettest month (6.4") and March the driest (2.6").