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Lemannville, LA
Full City Profile · Louisiana · Ascension Parish County
1.4
/5.0
F
Poor
680
Population
673/sq mi density
$16,181
Median Income
$15,704 per capita
69°F
Avg Temperature
313 sunny days/yr
499
Violent Crime/100K
6,829 property/100K
F
Overall
1.4 / 5.0
Below average overall score based on economy, affordability, safety and education
C
Economy
2.2 / 5.0
$16,181 median income, 0.0% unemployment
F
Safety
1.0 / 5.0
499 violent crimes/100K (31% above avg)
F
Education
1.1 / 5.0
1.2% bachelor's degree or higher
Lemannville 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. The area gets 313 sunny days per year. Annual precipitation totals 67.2 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
53°F Jan (11°C)
83°F Jul (28°C)
| Annual Average | 69.1°F |
| 28% above US avg | |
| January Average | 53°F (11°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 313 days/yr |
Geography
| Elevation | 15 ft (5 m) |
| Area | 1.3 sq mi (3.3 km²) |
| Population Density | 673/sq mi |
| Coordinates | 30.1010°N, 90.9284°W |
| Timezone | America/Chicago |
| County | Ascension Parish County |
| Nearest Airport | Louis Armstrong New Orleans International (MSY) 41 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0401 ppm |
| NO₂ (Nitrogen Dioxide) | 10.0 ppb |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 92.1 / 100 |
| Social Vulnerability | 34.8 / 100 |
| Community Resilience | 84.6 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Low |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 53°F (11°C) | 5.6 in | Coldest |
| February | 54°F (12°C) | 5.1 in | |
| March | 61°F (16°C) | 5.2 in | |
| April | 67°F (20°C) | 4.9 in | |
| May | 75°F (24°C) | 5.0 in | |
| June | 80°F (27°C) | 5.7 in | |
| July | 83°F (28°C) | 6.7 in | Warmest, Wettest |
| August | 81°F (27°C) | 6.1 in | |
| September | 78°F (26°C) | 5.7 in | |
| October | 69°F (20°C) | 3.8 in | Driest |
| November | 60°F (16°C) | 4.5 in | |
| December | 54°F (12°C) | 5.3 in |
Lemannville has a seasonal temperature swing of 31°F / from 53°F in January to 83°F in July. Total annual precipitation is 63.6 inches, with July being the wettest month (6.7") and October the driest (3.8").