Ossun, LA
Full City Profile · Louisiana · Lafayette Parish County
2.7
/5.0
C+
Fair
1,940
Population
572/sq mi density
$40,283
Median Income
$24,209 per capita
$1,050
Median Rent
36.1% income on rent
69°F
Avg Temperature
C+
Overall
2.7 / 5.0
Fair overall score based on economy, affordability, safety and education
C
Economy
2.4 / 5.0
$40,283 median income, 9.0% unemployment
B
Affordability
3.5 / 5.0
C
Education
2.3 / 5.0
15.7% bachelor's degree or higher
Ossun enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 53°F in January while summers reach 83°F in July. Annual precipitation totals 62.8 inches. The area receives 0.0 inches of snow annually. Air quality is rated Moderate with a median AQI of 51.
Temperature
53°F Jan (12°C)
83°F Jul (29°C)
| Annual Average | 69.4°F |
| 29% above US avg | |
| January Average | 53°F (12°C) |
| July Average | 83°F (29°C) |
Geography
| Elevation | 40 ft (12 m) |
| Area | 3.4 sq mi (8.8 km²) |
| Population Density | 572/sq mi |
| Coordinates | 30.2834°N, 92.1070°W |
| Timezone | America/Chicago |
| County | Lafayette Parish County |
| Nearest Airport | Lafayette Regional/Paul Fournet Field (LFT) 9 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 51.0 |
| Rating | Moderate |
| Good Days % | 49.3% |
| Unhealthy Days | 2 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0422 ppm |
| PM2.5 (Fine Particles) | 8.3 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 95.2 / 100 |
| Social Vulnerability | 32.4 / 100 |
| Community Resilience | 72.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very High |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Low |
| Lightning | Very High |
| Ice Storm | Relatively High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Coastal Flood | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 53°F (12°C) | 5.9 in | Coldest |
| February | 57°F (14°C) | 4.1 in | |
| March | 63°F (17°C) | 3.7 in | Driest |
| April | 69°F (21°C) | 4.9 in | |
| May | 77°F (25°C) | 5.4 in | |
| June | 82°F (28°C) | 7.1 in | Wettest |
| July | 83°F (29°C) | 6.3 in | |
| August | 84°F (29°C) | 6.3 in | Warmest |
| September | 80°F (27°C) | 5.0 in | |
| October | 71°F (22°C) | 4.8 in | |
| November | 61°F (16°C) | 4.4 in | |
| December | 55°F (13°C) | 5.0 in |
Ossun has a seasonal temperature swing of 31°F / from 53°F in January to 84°F in August. Total annual precipitation is 62.8 inches, with June being the wettest month (7.1") and March the driest (3.7").