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Kirby, TX
Full City Profile · Texas · Bexar County County
3.0
/5.0
B
Good
8,100
Population
4,050/sq mi density
$58,700
Median Income
$27,387 per capita
$159,000
Home Value
$169,484 Zillow
$1,114
Median Rent
24.8% income on rent
69°F
Avg Temperature
300 sunny days/yr
249
Violent Crime/100K
1,787 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.9 / 5.0
$58,700 median income, 2.9% unemployment
A+
Affordability
5.0 / 5.0
$159,000 home value, $1,114/mo rent
F
Safety
1.0 / 5.0
249 violent crimes/100K
C
Education
2.1 / 5.0
13.6% bachelor's degree or higher
Kirby enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 52°F in January while summers reach 84°F in July. The area gets 300 sunny days per year. Annual precipitation totals 34.0 inches. The area receives 0.1 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
52°F Jan (11°C)
84°F Jul (29°C)
| Annual Average | 69.0°F |
| 28% above US avg | |
| January Average | 52°F (11°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 300 days/yr |
Geography
| Elevation | 685 ft (209 m) |
| Area | 0.7 sq mi (1.9 km²) |
| Population Density | 4,050/sq mi |
| Coordinates | 29.4617°N, 98.3853°W |
| Timezone | America/Chicago |
| County | Bexar County County |
| Nearest Airport | San Antonio International (SAT) 7 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0450 ppm |
| NO₂ (Nitrogen Dioxide) | 8.5 ppb |
| SO₂ (Sulfur Dioxide) | 0.47 ppb |
| CO (Carbon Monoxide) | 0.25 ppm |
| PM2.5 (Fine Particles) | 7.9 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 99.4 / 100 |
| Social Vulnerability | 57.2 / 100 |
| Community Resilience | 21.7 / 100 |
Hazard Breakdown
| Tornado | Very High |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Very High |
| Hail | Very High |
| Strong Wind | Relatively High |
| Heat Wave | Relatively High |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 52°F (11°C) | 1.7 in | Coldest |
| February | 55°F (13°C) | 1.8 in | |
| March | 63°F (17°C) | 1.6 in | Driest |
| April | 69°F (21°C) | 2.6 in | |
| May | 76°F (24°C) | 4.3 in | Wettest |
| June | 81°F (27°C) | 3.7 in | |
| July | 84°F (29°C) | 1.9 in | Warmest |
| August | 84°F (29°C) | 2.4 in | |
| September | 79°F (26°C) | 3.4 in | |
| October | 71°F (21°C) | 3.4 in | |
| November | 61°F (16°C) | 2.2 in | |
| December | 53°F (12°C) | 1.8 in |
Kirby has a seasonal temperature swing of 32°F / from 52°F in January to 84°F in July. Total annual precipitation is 30.9 inches, with May being the wettest month (4.3") and March the driest (1.6").