All Countries
Sienna, TX
Full City Profile · Texas · Fort Bend County County
4.0
/5.0
A
Great
25,025
Population
1,989/sq mi density
$171,709
Median Income
$55,915 per capita
$440,600
Home Value
$306,852 Zillow
$2,853
Median Rent
22.7% income on rent
70°F
Avg Temperature
314 sunny days/yr
183
Violent Crime/100K
1,038 property/100K
A
Overall
4.0 / 5.0
Strong
A+
Economy
4.9 / 5.0
$171,709 median income, 3.0% unemployment
A+
Affordability
5.0 / 5.0
$440,600 home value, $2,853/mo rent
F
Safety
1.0 / 5.0
183 violent crimes/100K
A+
Education
5.0 / 5.0
64.4% bachelor's degree or higher
Sienna 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 | 57 ft (17 m) |
| Area | 13.7 sq mi (35.4 km²) |
| Population Density | 1,989/sq mi |
| Coordinates | 29.4854°N, 95.5063°W |
| Timezone | America/Chicago |
| County | Fort Bend County County |
| Nearest Airport | Sugar Land Regional (SGR) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 97.5 / 100 |
| Social Vulnerability | 17.0 / 100 |
| Community Resilience | 70.1 / 100 |
Hazard Breakdown
| Tornado | Very High |
| Hurricane | Relatively High |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively High |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively High |
| Winter Weather | Relatively Low |
| Lightning | Very High |
| Ice Storm | Relatively High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Coastal Flood | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 53°F (12°C) | 3.5 in | Coldest |
| February | 54°F (12°C) | 2.9 in | |
| March | 62°F (16°C) | 2.6 in | Driest |
| April | 67°F (20°C) | 2.9 in | |
| May | 75°F (24°C) | 4.7 in | |
| June | 80°F (27°C) | 5.3 in | |
| July | 83°F (28°C) | 4.4 in | Warmest |
| August | 83°F (28°C) | 4.4 in | |
| September | 79°F (26°C) | 5.8 in | Wettest |
| October | 71°F (22°C) | 3.7 in | |
| November | 62°F (17°C) | 4.1 in | |
| December | 55°F (13°C) | 3.5 in |
Sienna has a seasonal temperature swing of 30°F / from 53°F in January to 83°F in July. Total annual precipitation is 47.7 inches, with September being the wettest month (5.8") and March the driest (2.6").