The basics
Total Population
4,350
Median Age
19
Climate & weather
Ranked against U.S. ZIP codes.
Summer Avg High (°F)
85.2
Winter Avg Low (°F)
27.3
Avg Temperature (°F)
55.9
Hot Days/yr (>90°F)
29.7
Freezing Days/yr (<32°F)
95.4
Annual Precipitation (in)
44
Annual Snowfall (in)
15.8
The full report
Six pillars — each with percentile benchmarks, 16-year trends, and per-metric detail.
People
Work & Money
Housing
Amenities
Environment & Risk
ZIP Code 20742: frequently asked questions
- What is the weather like in ZIP Code 20742?
- ZIP Code 20742 averages 55.9°F year-round, summer highs near 85.2°F, winter lows around 27.3°F (NOAA 1991–2020 normals). It sees about 15.8 inches of snow a year.
Sources: U.S. Census ACS, FEMA National Risk Index, FHFA House Price Index, OpenStreetMap, EPA. Explore the map →