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Gaithersburg, MD
Full City Profile · Maryland · Montgomery County County
4.1
/5.0
A
Great
69,225
Population
6,695/sq mi density
$107,496
Median Income
$54,263 per capita
$484,500
Home Value
$521,654 Zillow
$2,008
Median Rent
31.2% income on rent
56°F
Avg Temperature
293 sunny days/yr
A
Overall
4.1 / 5.0
Strong
A+
Economy
4.7 / 5.0
$107,496 median income, 3.7% unemployment
A
Affordability
4.1 / 5.0
$484,500 home value, $2,008/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
A+
Education
5.0 / 5.0
52.4% bachelor's degree or higher
Gaithersburg 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 293 sunny days per year. Annual precipitation totals 41.3 inches. Air quality is rated Good with a median AQI of 41.
Temperature
35°F Jan (1°C)
78°F Jul (26°C)
| Annual Average | 56.2°F |
| 4% above US avg | |
| January Average | 35°F (1°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 453 ft (138 m) |
| Area | 10.4 sq mi (26.9 km²) |
| Population Density | 6,695/sq mi |
| Coordinates | 39.1486°N, 77.1951°W |
| Timezone | America/New_York |
| County | Montgomery County County |
| Nearest Airport | Ronald Reagan Washington Ntl (DCA) 22 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0449 ppm |
| PM2.5 (Fine Particles) | 6.3 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 91.7 / 100 |
| Social Vulnerability | 19.9 / 100 |
| Community Resilience | 63.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively High |
| Strong Wind | Relatively High |
| Heat Wave | Relatively High |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively 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) | 2.9 in | Coldest |
| February | 35°F (2°C) | 2.7 in | Driest |
| March | 44°F (7°C) | 3.5 in | |
| April | 54°F (12°C) | 3.2 in | |
| May | 63°F (17°C) | 4.1 in | Wettest |
| June | 72°F (22°C) | 3.7 in | |
| July | 78°F (26°C) | 3.8 in | Warmest |
| August | 75°F (24°C) | 3.7 in | |
| September | 68°F (20°C) | 3.6 in | |
| October | 56°F (14°C) | 3.2 in | |
| November | 47°F (8°C) | 3.4 in | |
| December | 37°F (3°C) | 3.1 in |
Gaithersburg has a seasonal temperature swing of 44°F / from 35°F in January to 78°F in July. Total annual precipitation is 40.9 inches, with May being the wettest month (4.1") and February the driest (2.7").