Catonsville, MD
Full City Profile · Maryland · Baltimore city County
4.8
/5.0
A+
Excellent
42,717
Population
3,060/sq mi density
$110,051
Median Income
$52,967 per capita
$405,800
Home Value
$419,243 Zillow
$1,697
Median Rent
33.7% income on rent
59°F
Avg Temperature
A+
Overall
4.8 / 5.0
Strong
A+
Economy
4.7 / 5.0
$110,051 median income, 3.9% unemployment
A+
Affordability
4.6 / 5.0
$405,800 home value, $1,697/mo rent
A+
Education
5.0 / 5.0
51.9% bachelor's degree or higher
Catonsville enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 37°F in January while summers reach 82°F in July. Annual precipitation totals 43.7 inches. The area receives 19.3 inches of snow annually. Air quality is rated Good with a median AQI of 45.
Temperature
37°F Jan (3°C)
82°F Jul (28°C)
| Annual Average | 59.1°F |
| 9% above US avg | |
| January Average | 37°F (3°C) |
| July Average | 82°F (28°C) |
Geography
| Elevation | 482 ft (147 m) |
| Area | 14.0 sq mi (36.2 km²) |
| Population Density | 3,060/sq mi |
| Coordinates | 39.2645°N, 76.7417°W |
| Timezone | America/New_York |
| County | Baltimore city County |
| Nearest Airport | Baltimore/Washington International Thurgood Marshall (BWI) 7 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 45.0 |
| Rating | Good |
| Good Days % | 65.6% |
| Unhealthy Days | 5 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0487 ppm |
| NO₂ (Nitrogen Dioxide) | 13.9 ppb |
| PM2.5 (Fine Particles) | 8.3 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 95.0 / 100 |
| Social Vulnerability | 74.1 / 100 |
| Community Resilience | 78.8 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively High |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | - | - | 145 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 37°F (3°C) | 3.1 in | Coldest |
| February | 39°F (4°C) | 2.8 in | Driest |
| March | 47°F (8°C) | 3.9 in | |
| April | 58°F (14°C) | 3.6 in | |
| May | 67°F (19°C) | 3.4 in | |
| June | 77°F (25°C) | 3.4 in | |
| July | 82°F (28°C) | 4.7 in | Warmest, Wettest |
| August | 79°F (26°C) | 4.4 in | |
| September | 73°F (23°C) | 4.5 in | |
| October | 61°F (16°C) | 3.5 in | |
| November | 50°F (10°C) | 3.0 in | |
| December | 41°F (5°C) | 3.7 in |
Catonsville has a seasonal temperature swing of 45°F / from 37°F in January to 82°F in July. Total annual precipitation is 43.7 inches, with July being the wettest month (4.7") and February the driest (2.8").