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Urbana CDP, MD

ZIP 21704 — Climate & Environment

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Wealthy AreaLow Snow AreaRemote Work Hub

Climate, disaster risk, air quality, and environmental safety

Environment & Risk in ZIP Code 21704

Disaster Risk (FEMA NRI)

County-linked natural hazard risk from FEMA National Risk Index — useful for comparing insurance and disaster exposure.

FEMA’s National Risk Index rates natural-hazard risk for Urbana CDP, MD as Relatively Low (composite score 74.2), which is elevated versus much of the country. The strongest component scores on US5 are flood (81.6) and hurricane (79.3). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Overall rating
Relatively Low
Risk index
74.2
Flood risk
81.6
Wildfire risk
27.6
Hurricane risk
79.3
Earthquake risk
74.6
Tornado risk
67.2
Winter weather risk
90.6
Hail risk
74.9
Air Quality (EPA AQI)

County-level annual air quality from EPA. Good days = healthy to breathe; unhealthy = sensitive groups or worse.

41
Median AQI
85.7%
Good Days

Air quality healthy to breathe

0.0%
Unhealthy / Hazardous

Sensitive groups or worse

Climate & Weather in ZIP Code 21704

Climate normals for Urbana CDP, MD show little to no average snow and around 43.5 inches of annual precipitation. Pair that with FEMA NRI hazard context (overall rating Relatively Low) when evaluating long-term housing and insurance exposure.

7-day weather forecast

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Sunrise, sunset & moon

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Monthly Temperature

30-year climate normals (avg. monthly temperature)

Climate Data
Hardiness Zone
7a
Annual Snow Days
0
Annual Precipitation
43.52 in
FEMA NRI rating
Relatively Low

Climate & Environment key statistics

Climate statistics
Climate
Hardiness zone7a
Annual precip (in)43.52
Snow days0
Broadband access94.8%
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingRelatively Low
NRI risk index74.2
Flood risk (NRI)81.6
Wildfire risk (NRI)27.6
Hurricane risk (NRI)79.3
IRS net migration1153
Median AQI41
Good AQI days85.7%