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Henderson town, MD

ZIP 21640 — Climate & Environment

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

Middle ClassLow Snow Area

Climate, disaster risk, air quality, and environmental safety

Environment & Risk in ZIP Code 21640

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 Henderson town, MD as Relatively Low (composite score 45.7), which is near the middle of the national distribution. The strongest component scores on US5 are hurricane (88.2) and wildfire (63.7). 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
45.7
Flood risk
26.6
Wildfire risk
63.7
Hurricane risk
88.2
Earthquake risk
52.8
Tornado risk
24.1
Winter weather risk
63.9
Hail risk
34.6

Climate & Weather in ZIP Code 21640

Climate normals for Henderson town, MD show little to no average snow and around 46.0 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
7b
Annual Snow Days
0
Annual Precipitation
45.96 in
FEMA NRI rating
Relatively Low

Climate & Environment key statistics

Climate statistics
Climate
Hardiness zone7b
Annual precip (in)45.96
Snow days0
Broadband access82.0%
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingRelatively Low
NRI risk index45.7
Flood risk (NRI)26.6
Wildfire risk (NRI)63.7
Hurricane risk (NRI)88.2
IRS net migration73