Humid subtropical

Potomac, Maryland

Montgomery County, Maryland · Population 46k · 354 ft elevation

Living in Potomac

Potomac has a humid subtropical climate: hot summers (July highs around 87°F) and chilly winters (January lows around 27°F).

Precipitation is wet at about 41″ a year, and it sees only a dusting of snow (6″ a season).

Skies are sunny (60% of possible sunshine). Summers get sticky, with about 46 muggy days a year.

Air quality is good: a median AQI of 39 and virtually no unhealthy-air days.

Potomac at a glance

Population
46k
Elevation
354 ft
Average daily high
65°F45th percentile
Average daily low
48°F62th percentile
Annual precipitation
41″40th percentile
Annual snowfall
6″41th percentile
Sunshine hours per year
2,674 hrs34th percentile
Median AQI
3930th percentile
Median home value
$1.1M98th percentile
Median rent
$2,616/mo96th percentile
Median household income
$239k99th percentile
Property tax rate
0.89%44th percentile
Top state income-tax rate
6.5%
Sales tax (state + local)
6.0%
Unemployment rate
3.6%
Homes with broadband
98%93th percentile
Walkability index
10.469th percentile
Average commute
31 min
Math proficiency (8th grade)
43%47th percentile
Reading proficiency (8th grade)
55%
Overall natural-hazard risk
9254th percentile
Outdoor access
5857th percentile
Public land within 10 miles
3%
Public land within 30 miles
4%
Mountain relief within 30 miles
558 ft

Climate by month

Average monthly weather in Potomac, Maryland
MonthHighLowPrecipitationSnowSunshine
Jan43°F27°F3.1″2.9″153 hrs
Feb45°F29°F2.6″1.4″163 hrs
Mar54°F36°F3.7″0.7″198 hrs
Apr66°F46°F3.2″—229 hrs
May75°F55°F3.5″—257 hrs
Jun83°F64°F4.0″—296 hrs
Jul87°F69°F4.0″—318 hrs
Aug85°F67°F3.0″—292 hrs
Sep78°F60°F4.0″—237 hrs
Oct66°F48°F3.5″—204 hrs
Nov56°F39°F3.3″—178 hrs
Dec46°F31°F3.4″0.8″150 hrs

Near Potomac

Largest places in Maryland

Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology