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St. Marys, GA
Full City Profile · Georgia · Camden County County
3.0
/5.0
B
Good
18,805
Population
737/sq mi density
$67,271
Median Income
$34,958 per capita
$259,300
Home Value
$296,321 Zillow
$1,171
Median Rent
37.7% income on rent
66°F
Avg Temperature
306 sunny days/yr
331
Violent Crime/100K
2,986 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.2 / 5.0
$67,271 median income, 4.6% unemployment
A+
Affordability
4.5 / 5.0
$259,300 home value, $1,171/mo rent
F
Safety
1.0 / 5.0
331 violent crimes/100K
B
Education
3.2 / 5.0
27.2% bachelor's degree or higher
St. Marys enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 50°F in January while summers reach 81°F in July. The area gets 306 sunny days per year. Annual precipitation totals 54.6 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 44.
Temperature
50°F Jan (10°C)
81°F Jul (27°C)
| Annual Average | 66.4°F |
| 23% above US avg | |
| January Average | 50°F (10°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 306 days/yr |
Geography
| Elevation | 24 ft (7 m) |
| Area | 24.9 sq mi (64.5 km²) |
| Population Density | 737/sq mi |
| Coordinates | 30.7542°N, 81.5726°W |
| Timezone | America/New_York |
| County | Camden County County |
| Nearest Airport | Jacksonville International (JAX) 19 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 44.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 54.6 / 100 |
| Social Vulnerability | 23.2 / 100 |
| Community Resilience | 54.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | No Rating |
| Cold Wave | Very Low |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 50°F (10°C) | 3.8 in | Coldest |
| February | 55°F (13°C) | 3.4 in | |
| March | 61°F (16°C) | 4.1 in | |
| April | 67°F (19°C) | 2.9 in | |
| May | 74°F (23°C) | 3.2 in | |
| June | 79°F (26°C) | 5.5 in | |
| July | 81°F (27°C) | 5.8 in | |
| August | 81°F (27°C) | 6.3 in | Warmest |
| September | 78°F (26°C) | 6.9 in | Wettest |
| October | 70°F (21°C) | 3.8 in | |
| November | 62°F (17°C) | 2.4 in | Driest |
| December | 55°F (13°C) | 2.8 in |
St. Marys has a seasonal temperature swing of 31°F / from 50°F in January to 81°F in August. Total annual precipitation is 51.0 inches, with September being the wettest month (6.9") and November the driest (2.4").