Prairieville, LA
Full City Profile · Louisiana · Ascension Parish County
4.7
/5.0
A+
Excellent
35,010
Population
1,591/sq mi density
$115,610
Median Income
$46,363 per capita
$302,200
Home Value
$338,080 Zillow
$1,225
Median Rent
29.0% income on rent
69°F
Avg Temperature
A+
Overall
4.7 / 5.0
Strong
A+
Economy
5.0 / 5.0
$115,610 median income, 2.3% unemployment
A+
Affordability
5.0 / 5.0
$302,200 home value, $1,225/mo rent
B+
Education
4.0 / 5.0
37.4% bachelor's degree or higher
Prairieville enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 52°F in January while summers reach 83°F in July. Annual precipitation totals 67.2 inches. The area receives 0.2 inches of snow annually. Air quality is rated Good with a median AQI of 33.
Temperature
52°F Jan (11°C)
83°F Jul (28°C)
| Annual Average | 68.7°F |
| 27% above US avg | |
| January Average | 52°F (11°C) |
| July Average | 83°F (28°C) |
Geography
| Elevation | 20 ft (6 m) |
| Area | 22.1 sq mi (57.2 km²) |
| Population Density | 1,591/sq mi |
| Coordinates | 30.3135°N, 90.9581°W |
| Timezone | America/Chicago |
| County | Ascension Parish County |
| Nearest Airport | Louis Armstrong New Orleans International (MSY) 47 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 33.0 |
| Rating | Good |
| Good Days % | 91.9% |
| Unhealthy Days | 3 |
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 | 52°F (11°C) | 5.6 in | Coldest |
| February | 56°F (13°C) | 5.2 in | |
| March | 62°F (17°C) | 4.5 in | |
| April | 68°F (20°C) | 5.7 in | |
| May | 76°F (24°C) | 7.2 in | |
| June | 81°F (27°C) | 6.7 in | |
| July | 83°F (28°C) | 5.3 in | Warmest |
| August | 83°F (28°C) | 7.7 in | Wettest |
| September | 79°F (26°C) | 4.6 in | |
| October | 70°F (21°C) | 4.8 in | |
| November | 60°F (16°C) | 4.1 in | Driest |
| December | 55°F (13°C) | 5.9 in |
Prairieville has a seasonal temperature swing of 30°F / from 52°F in January to 83°F in July. Total annual precipitation is 67.2 inches, with August being the wettest month (7.7") and November the driest (4.1").