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Callaway CDP, MD

ZIP 20620 — Climate & Environment

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

Wealthy AreaLow Snow Area

Climate, disaster risk, air quality, and environmental safety

Environment & Risk in ZIP Code 20620

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 Callaway CDP, MD as Very Low (composite score 42.6), which is near the middle of the national distribution. The strongest component scores on US5 are hurricane (85.1) and wildfire (59.0). 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
Very Low
Risk index
42.6
Flood risk
36.8
Wildfire risk
59.0
Hurricane risk
85.1
Earthquake risk
57.2
Tornado risk
39.4
Winter weather risk
58.1
Hail risk
34.3

Climate & Weather in ZIP Code 20620

Climate normals for Callaway CDP, MD show little to no average snow. Pair that with FEMA NRI hazard context (overall rating Very 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
8a
Annual Snow Days
0
Annual Precipitation
0 in
FEMA NRI rating
Very Low

Climate & Environment key statistics

Climate statistics
Climate
Hardiness zone8a
Annual precip (in)0
Snow days0
Broadband access89.9%
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingVery Low
NRI risk index42.6
Flood risk (NRI)36.8
Wildfire risk (NRI)59.0
Hurricane risk (NRI)85.1
IRS net migration68