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Eldersburg, MD
Full City Profile · Maryland · Howard County County
4.0
/5.0
A
Great
30,626
Population
769/sq mi density
$146,598
Median Income
$59,145 per capita
$478,800
Home Value
$549,073 Zillow
$1,655
Median Rent
25.1% income on rent
56°F
Avg Temperature
297 sunny days/yr
45
Violent Crime/100K
472 property/100K
A
Overall
4.0 / 5.0
Strong
A+
Economy
5.0 / 5.0
$146,598 median income, 2.0% unemployment
A+
Affordability
4.8 / 5.0
$478,800 home value, $1,655/mo rent
F
Safety
1.0 / 5.0
45 violent crimes/100K
A+
Education
5.0 / 5.0
53.5% bachelor's degree or higher
Eldersburg enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 35°F in January while summers reach 78°F in July. The area gets 297 sunny days per year. Air quality is rated Good with a median AQI of 41.
Temperature
35°F Jan (1°C)
78°F Jul (26°C)
| Annual Average | 56.1°F |
| 4% above US avg | |
| January Average | 35°F (1°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 297 days/yr |
Geography
| Elevation | 650 ft (198 m) |
| Area | 39.8 sq mi (103.1 km²) |
| Population Density | 769/sq mi |
| Coordinates | 39.4042°N, 76.9526°W |
| Timezone | America/New_York |
| County | Howard County County |
| Nearest Airport | Baltimore/Washington International Thurgood Marshall (BWI) 22 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| NO₂ (Nitrogen Dioxide) | 20.7 ppb |
| CO (Carbon Monoxide) | 0.26 ppm |
| PM2.5 (Fine Particles) | 8.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 72.4 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 92.9 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 35°F (1°C) | 3.3 in | |
| February | 33°F (1°C) | 2.8 in | Coldest, Driest |
| March | 42°F (6°C) | 3.8 in | |
| April | 52°F (11°C) | 3.5 in | |
| May | 62°F (17°C) | 4.5 in | Wettest |
| June | 70°F (21°C) | 3.9 in | |
| July | 78°F (26°C) | 3.9 in | Warmest |
| August | 73°F (23°C) | 3.7 in | |
| September | 67°F (19°C) | 4.0 in | |
| October | 55°F (13°C) | 3.5 in | |
| November | 45°F (7°C) | 3.6 in | |
| December | 36°F (2°C) | 3.4 in |
Eldersburg has a seasonal temperature swing of 45°F / from 33°F in February to 78°F in July. Total annual precipitation is 43.8 inches, with May being the wettest month (4.5") and February the driest (2.8").