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Gilliam, LA
Full City Profile · Louisiana · Bossier Parish County
3.5
/5.0
B+
Good
113
Population
48/sq mi density
$65,000
Median Income
$39,912 per capita
$143,800
Home Value
$155,629 Zillow
65°F
Avg Temperature
304 sunny days/yr
199
Violent Crime/100K
1,493 property/100K
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.3 / 5.0
$65,000 median income, 1.9% unemployment
A+
Affordability
5.0 / 5.0
$143,800 home value, /mo rent
F
Safety
1.0 / 5.0
199 violent crimes/100K
B+
Education
3.6 / 5.0
31.9% bachelor's degree or higher
Gilliam enjoys a temperate climate with an average annual temperature of 65°F (18°C). Winters average 46°F in January while summers reach 84°F in July. The area gets 304 sunny days per year. Annual precipitation totals 50.8 inches. The area receives 0.1 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
46°F Jan (8°C)
84°F Jul (29°C)
| Annual Average | 65.3°F |
| 21% above US avg | |
| January Average | 46°F (8°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 304 days/yr |
Geography
| Elevation | 193 ft (59 m) |
| Area | 0.8 sq mi (2.0 km²) |
| Population Density | 48/sq mi |
| Coordinates | 32.8282°N, 93.8418°W |
| Timezone | America/Chicago |
| County | Bossier Parish County |
| Nearest Airport | Shreveport Regional (SHV) 26 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0398 ppm |
| SO₂ (Sulfur Dioxide) | 0.64 ppb |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 82.5 / 100 |
| Social Vulnerability | 41.5 / 100 |
| Community Resilience | 35.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively High |
| Winter Weather | Relatively Low |
| Lightning | Relatively High |
| Ice Storm | Very High |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 46°F (8°C) | 4.1 in | Coldest |
| February | 49°F (9°C) | 4.1 in | |
| March | 56°F (13°C) | 4.4 in | |
| April | 63°F (17°C) | 4.3 in | |
| May | 71°F (22°C) | 4.7 in | Wettest |
| June | 78°F (26°C) | 4.7 in | |
| July | 84°F (29°C) | 3.5 in | Warmest |
| August | 81°F (27°C) | 3.0 in | Driest |
| September | 76°F (24°C) | 3.2 in | |
| October | 65°F (18°C) | 4.3 in | |
| November | 55°F (13°C) | 4.7 in | |
| December | 47°F (8°C) | 4.5 in |
Gilliam has a seasonal temperature swing of 38°F / from 46°F in January to 84°F in July. Total annual precipitation is 49.4 inches, with May being the wettest month (4.7") and August the driest (3.0").