St. George Island, MD
Full City Profile · Maryland · St. Mary's County County
4.4
/5.0
A
Great
38
Population
48/sq mi density
58°F
Avg Temperature
A
Overall
4.4 / 5.0
Strong
A
Education
4.4 / 5.0
42.1% bachelor's degree or higher
St. George Island enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 38°F in January while summers reach 79°F in July. Annual precipitation totals 46.3 inches. The area receives 12.5 inches of snow annually.
Temperature
38°F Jan (3°C)
79°F Jul (26°C)
| Annual Average | 58.3°F |
| 8% above US avg | |
| January Average | 38°F (3°C) |
| July Average | 79°F (26°C) |
Geography
| Elevation | 3 ft (1 m) |
| Area | 0.9 sq mi (2.4 km²) |
| Population Density | 48/sq mi |
| Coordinates | 38.1155°N, 76.4770°W |
| Timezone | America/New_York |
| County | St. Mary's County County |
| Nearest Airport | St Mary's County Regional (LTW) 14 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 42.6 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 93.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively 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 | 38°F (3°C) | 3.3 in | Coldest |
| February | 40°F (4°C) | 2.8 in | Driest |
| March | 46°F (8°C) | 3.9 in | |
| April | 57°F (14°C) | 4.0 in | |
| May | 66°F (19°C) | 3.9 in | |
| June | 75°F (24°C) | 4.0 in | |
| July | 79°F (26°C) | 4.9 in | Warmest, Wettest |
| August | 77°F (25°C) | 4.6 in | |
| September | 71°F (22°C) | 4.3 in | |
| October | 60°F (16°C) | 4.2 in | |
| November | 50°F (10°C) | 3.1 in | |
| December | 42°F (5°C) | 3.3 in |
St. George Island has a seasonal temperature swing of 41°F / from 38°F in January to 79°F in July. Total annual precipitation is 46.3 inches, with July being the wettest month (4.9") and February the driest (2.8").