All Countries
Belle Chasse, LA
Full City Profile · Louisiana · St. Charles Parish County
3.4
/5.0
B
Good
11,046
Population
1,352/sq mi density
$96,381
Median Income
$41,819 per capita
$361,800
Home Value
$343,127 Zillow
$1,545
Median Rent
29.0% income on rent
68°F
Avg Temperature
317 sunny days/yr
236
Violent Crime/100K
2,801 property/100K
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$96,381 median income, 2.1% unemployment
A+
Affordability
4.6 / 5.0
$361,800 home value, $1,545/mo rent
F
Safety
1.0 / 5.0
236 violent crimes/100K
B
Education
3.3 / 5.0
29.0% bachelor's degree or higher
Belle Chasse enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 53°F in January while summers reach 81°F in July. The area gets 317 sunny days per year. Annual precipitation totals 63.8 inches. Air quality is rated Good with a median AQI of 42.
Temperature
53°F Jan (12°C)
81°F Jul (27°C)
| Annual Average | 68.2°F |
| 26% above US avg | |
| January Average | 53°F (12°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 317 days/yr |
Geography
| Elevation | 49 ft (15 m) |
| Area | 28.4 sq mi (73.5 km²) |
| Population Density | 1,352/sq mi |
| Coordinates | 29.8587°N, 90.0033°W |
| Timezone | America/Chicago |
| County | St. Charles Parish County |
| Nearest Airport | Louis Armstrong New Orleans International (MSY) 18 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 85.1 / 100 |
| Social Vulnerability | 41.7 / 100 |
| Community Resilience | 100.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Very High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 53°F (12°C) | 5.4 in | Coldest |
| February | 56°F (13°C) | 5.5 in | |
| March | 62°F (17°C) | 5.3 in | |
| April | 68°F (20°C) | 4.6 in | |
| May | 76°F (24°C) | 5.0 in | |
| June | 81°F (27°C) | 5.6 in | |
| July | 81°F (27°C) | 6.7 in | Wettest |
| August | 83°F (28°C) | 6.3 in | Warmest |
| September | 79°F (26°C) | 5.6 in | |
| October | 71°F (21°C) | 3.2 in | Driest |
| November | 62°F (17°C) | 4.7 in | |
| December | 56°F (13°C) | 5.1 in |
Belle Chasse has a seasonal temperature swing of 30°F / from 53°F in January to 83°F in August. Total annual precipitation is 62.9 inches, with July being the wettest month (6.7") and October the driest (3.2").