All Countries
Jefferson, LA
Full City Profile · Louisiana · St. Charles Parish County
3.2
/5.0
B
Good
9,984
Population
3,684/sq mi density
$56,875
Median Income
$39,444 per capita
$238,000
Home Value
$253,372 Zillow
$1,104
Median Rent
32.8% income on rent
72°F
Avg Temperature
317 sunny days/yr
161
Violent Crime/100K
1,535 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.7 / 5.0
$56,875 median income, 2.1% unemployment
A
Affordability
4.3 / 5.0
$238,000 home value, $1,104/mo rent
F
Safety
1.0 / 5.0
161 violent crimes/100K
B+
Education
3.8 / 5.0
35.0% bachelor's degree or higher
Jefferson has a warm climate with an average annual temperature of 72°F (22°C). Winters average 55°F in January while summers reach 85°F in July. The area gets 317 sunny days per year. Annual precipitation totals 64.6 inches. Air quality is rated Good with a median AQI of 46.
Temperature
55°F Jan (13°C)
85°F Jul (30°C)
| Annual Average | 71.8°F |
| 33% above US avg | |
| January Average | 55°F (13°C) |
| July Average | 85°F (30°C) |
| Sunny Days | 317 days/yr |
Geography
| Elevation | 9 ft (3 m) |
| Area | 3.3 sq mi (8.5 km²) |
| Population Density | 3,684/sq mi |
| Coordinates | 29.9604°N, 90.1559°W |
| Timezone | America/Chicago |
| County | St. Charles Parish County |
| Nearest Airport | Louis Armstrong New Orleans International (MSY) 7 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 46.0 |
| Rating | Good |
| Good Days % | 61.2% |
| Unhealthy Days | 1 |
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 | 55°F (13°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 | 85°F (30°C) | 6.7 in | Warmest, Wettest |
| August | 83°F (28°C) | 6.3 in | |
| 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 |
Jefferson has a seasonal temperature swing of 30°F / from 55°F in January to 85°F in July. Total annual precipitation is 62.9 inches, with July being the wettest month (6.7") and October the driest (3.2").