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Los Arcos, TX
Full City Profile · Texas · Webb County County
2.2
/5.0
C
Fair
27
Population
129/sq mi density
75°F
Avg Temperature
312 sunny days/yr
389
Violent Crime/100K
3,859 property/100K
C
Overall
2.2 / 5.0
Fair overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
389 violent crimes/100K (2% above avg)
B
Education
3.4 / 5.0
29.6% bachelor's degree or higher
Los Arcos has a warm climate with an average annual temperature of 75°F (24°C). Winters average 58°F in January while summers reach 88°F in July. The area gets 312 sunny days per year. Annual precipitation totals 21.4 inches. Air quality is rated Good with a median AQI of 42.
Temperature
58°F Jan (14°C)
88°F Jul (31°C)
| Annual Average | 74.6°F |
| 38% above US avg | |
| January Average | 58°F (14°C) |
| July Average | 88°F (31°C) |
| Sunny Days | 312 days/yr |
Geography
| Elevation | 609 ft (186 m) |
| Area | 0.2 sq mi (0.5 km²) |
| Population Density | 129/sq mi |
| Coordinates | 27.6144°N, 99.2105°W |
| Timezone | America/Chicago |
| County | Webb County County |
| Nearest Airport | Laredo International (LRD) 16 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0409 ppm |
| CO (Carbon Monoxide) | 0.10 ppm |
| PM2.5 (Fine Particles) | 8.9 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 89.3 / 100 |
| Social Vulnerability | 94.3 / 100 |
| Community Resilience | 7.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively High |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| 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 | 58°F (14°C) | 0.9 in | Coldest |
| February | 59°F (15°C) | 1.1 in | |
| March | 67°F (19°C) | 0.8 in | Driest |
| April | 73°F (23°C) | 1.6 in | |
| May | 80°F (27°C) | 2.7 in | |
| June | 84°F (29°C) | 2.4 in | |
| July | 88°F (31°C) | 1.3 in | Warmest |
| August | 86°F (30°C) | 2.1 in | |
| September | 82°F (28°C) | 3.2 in | Wettest |
| October | 74°F (23°C) | 2.2 in | |
| November | 64°F (18°C) | 1.1 in | |
| December | 58°F (14°C) | 0.8 in |
Los Arcos has a seasonal temperature swing of 31°F / from 58°F in January to 88°F in July. Total annual precipitation is 20.2 inches, with September being the wettest month (3.2") and March the driest (0.8").