St. Martinville, LA
Full City Profile · Louisiana · St. Martin Parish County
3.1
/5.0
B
Good
5,367
Population
1,693/sq mi density
$33,132
Median Income
$28,442 per capita
$91,700
Home Value
$126,237 Zillow
$770
Median Rent
40.2% income on rent
68°F
Avg Temperature
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
C
Economy
2.0 / 5.0
$33,132 median income, 14.6% unemployment
A+
Affordability
5.0 / 5.0
$91,700 home value, $770/mo rent
C
Education
2.2 / 5.0
14.9% bachelor's degree or higher
St. Martinville enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 52°F in January while summers reach 81°F in July. Annual precipitation totals 66.8 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 38.
Temperature
52°F Jan (11°C)
81°F Jul (27°C)
| Annual Average | 67.8°F |
| 26% above US avg | |
| January Average | 52°F (11°C) |
| July Average | 81°F (27°C) |
Geography
| Elevation | 23 ft (7 m) |
| Area | 1.2 sq mi (3.2 km²) |
| Population Density | 1,693/sq mi |
| Coordinates | 30.1270°N, 91.8311°W |
| Timezone | America/Chicago |
| County | St. Martin Parish County |
| Nearest Airport | Acadiana Regional (ARA) 7 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
| Good Days % | 88.0% |
| Unhealthy Days | 1 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0410 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 87.3 / 100 |
| Social Vulnerability | 88.0 / 100 |
| Community Resilience | 81.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively High |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Coastal Flood | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 52°F (11°C) | 5.6 in | Coldest |
| February | 56°F (13°C) | 4.4 in | |
| March | 62°F (17°C) | 3.9 in | Driest |
| April | 67°F (20°C) | 5.3 in | |
| May | 75°F (24°C) | 5.5 in | |
| June | 80°F (26°C) | 8.1 in | Wettest |
| July | 81°F (27°C) | 6.6 in | |
| August | 81°F (27°C) | 6.9 in | Warmest |
| September | 78°F (25°C) | 5.9 in | |
| October | 69°F (20°C) | 5.1 in | |
| November | 59°F (15°C) | 4.5 in | |
| December | 54°F (12°C) | 5.2 in |
St. Martinville has a seasonal temperature swing of 29°F / from 52°F in January to 81°F in August. Total annual precipitation is 66.8 inches, with June being the wettest month (8.1") and March the driest (3.9").