All Countries
San Juan, TX
Full City Profile · Texas · Hidalgo County County
1.8
/5.0
D
Poor
91
Population
8/sq mi density
76°F
Avg Temperature
323 sunny days/yr
461
Violent Crime/100K
2,288 property/100K
D
Overall
1.8 / 5.0
Below average overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
461 violent crimes/100K (21% above avg)
C+
Education
2.6 / 5.0
20.0% bachelor's degree or higher
San Juan has a warm climate with an average annual temperature of 76°F (24°C). Winters average 60°F in January while summers reach 87°F in July. The area gets 323 sunny days per year. Annual precipitation totals 18.7 inches. The area receives 0.1 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
60°F Jan (16°C)
87°F Jul (31°C)
| Annual Average | 75.5°F |
| 40% above US avg | |
| January Average | 60°F (16°C) |
| July Average | 87°F (31°C) |
| Sunny Days | 323 days/yr |
Geography
| Elevation | 106 ft (32 m) |
| Area | 11.5 sq mi (29.7 km²) |
| Population Density | 8/sq mi |
| Coordinates | 26.1898°N, 98.1518°W |
| Timezone | America/Chicago |
| County | Hidalgo County County |
| Nearest Airport | Mc Allen International (MFE) 3 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0324 ppm |
| PM2.5 (Fine Particles) | 9.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 99.0 / 100 |
| Social Vulnerability | 92.7 / 100 |
| Community Resilience | 0.9 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very High |
| 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 High |
| Ice Storm | Very High |
| Drought | Relatively High |
| Cold Wave | Very High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 60°F (16°C) | 1.4 in | Coldest |
| February | 62°F (17°C) | 1.4 in | |
| March | 69°F (21°C) | 0.6 in | Driest |
| April | 75°F (24°C) | 1.3 in | |
| May | 80°F (27°C) | 3.0 in | |
| June | 84°F (29°C) | 2.8 in | |
| July | 87°F (31°C) | 2.0 in | Warmest |
| August | 85°F (30°C) | 2.3 in | |
| September | 82°F (28°C) | 4.4 in | Wettest |
| October | 75°F (24°C) | 2.2 in | |
| November | 67°F (20°C) | 1.2 in | |
| December | 61°F (16°C) | 1.2 in |
San Juan has a seasonal temperature swing of 27°F / from 60°F in January to 87°F in July. Total annual precipitation is 23.9 inches, with September being the wettest month (4.4") and March the driest (0.6").