The basics
Total Population
3,289
Median Age
35.8
Climate & weather
Ranked against U.S. ZIP codes.
Summer Avg High (°F)
86.5
Winter Avg Low (°F)
30.9
Avg Temperature (°F)
58.7
Hot Days/yr (>90°F)
31.1
Freezing Days/yr (<32°F)
71.4
Annual Precipitation (in)
47.3
Annual Snowfall (in)
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 21890: frequently asked questions
- What is the weather like in ZIP Code 21890?
- ZIP Code 21890 averages 58.7°F year-round, summer highs near 86.5°F, winter lows around 30.9°F (NOAA 1991–2020 normals). It sees about 8 inches of snow a year.
Sources: U.S. Census ACS, FEMA National Risk Index, FHFA House Price Index, OpenStreetMap, EPA. Explore the map →