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Napoleonville, LA
Full City Profile · Louisiana · Assumption Parish County
1.1
/5.0
F
Poor
468
Population
2,753/sq mi density
$714
Median Rent
51.0% income on rent
70°F
Avg Temperature
314 sunny days/yr
639
Violent Crime/100K
3,410 property/100K
F
Overall
1.1 / 5.0
Below average overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
639 violent crimes/100K (68% above avg)
F
Education
1.3 / 5.0
3.5% bachelor's degree or higher
Napoleonville enjoys a temperate climate with an average annual temperature of 70°F (21°C). Winters average 54°F in January while summers reach 83°F in July. The area gets 314 sunny days per year. Annual precipitation totals 58.5 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
54°F Jan (12°C)
83°F Jul (29°C)
| Annual Average | 70.1°F |
| 30% above US avg | |
| January Average | 54°F (12°C) |
| July Average | 83°F (29°C) |
| Sunny Days | 314 days/yr |
Geography
| Elevation | 15 ft (5 m) |
| Area | 0.2 sq mi (0.4 km²) |
| Population Density | 2,753/sq mi |
| Coordinates | 29.9383°N, 91.0264°W |
| Timezone | America/Chicago |
| County | Assumption Parish County |
| Nearest Airport | Louis Armstrong New Orleans International (MSY) 46 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 70.3 / 100 |
| Social Vulnerability | 85.2 / 100 |
| Community Resilience | 53.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Relatively High |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 54°F (12°C) | 5.5 in | Coldest |
| February | 55°F (13°C) | 4.8 in | |
| March | 61°F (16°C) | 4.9 in | |
| April | 68°F (20°C) | 4.7 in | |
| May | 74°F (24°C) | 5.0 in | |
| June | 80°F (26°C) | 6.0 in | |
| July | 83°F (29°C) | 7.2 in | Warmest, Wettest |
| August | 81°F (27°C) | 6.6 in | |
| September | 78°F (25°C) | 6.0 in | |
| October | 69°F (20°C) | 3.9 in | Driest |
| November | 61°F (16°C) | 4.5 in | |
| December | 55°F (13°C) | 5.1 in |
Napoleonville has a seasonal temperature swing of 29°F / from 54°F in January to 83°F in July. Total annual precipitation is 64.1 inches, with July being the wettest month (7.2") and October the driest (3.9").