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Know Your Ground

County Data

Charles County, Maryland

Self-reliance and preparedness data for Charles County

Very Low

Hazard Risk (3.7/100)

Moderate

Solar (4.2 kWh/m²/day)

Natural Hazard Risks in Charles County

HazardRisk RatingScore
Winter WeatherVery Low8.1
LightningVery Low7.7
Cold WaveRelatively Low7.0
Strong WindVery Low6.9
TornadoVery Low6.3

Source: FEMA National Risk Index. Scores 0–100, higher = more risk.

Climate Profile

Temperature & Growing Season

January Avg34°F

Water & Energy

Annual Precipitation6.8
Solar Potential4.2 kWh/m²/day
Wind Speed0.8 m/s
Soil TypeSilt Loam

Local Species

72

Edible species

34

Medicinal species

53

Autonomy Score

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Frequently Asked Questions

What are the biggest natural hazards in Charles County, Maryland?
Charles County has an overall hazard rating of Very Low based on FEMA National Risk Index data. The top threats are Winter Weather, Lightning, Cold Wave. Each hazard is scored 0–100 by likelihood and expected impact.
Is Charles County good for solar power?
Charles County has a moderate solar rating. Solar potential is based on average daily irradiance (kWh/m²/day), which determines how much energy rooftop or ground-mounted panels can produce year-round.
How many edible plants grow in Charles County?
Our database identifies 72 edible plant species in Charles County based on regional flora data, USDA hardiness zone, and iNaturalist observations. The full field guide includes identification notes, preparation methods, and seasonal availability.
What is the autonomy score for Charles County?
Charles County has an autonomy score of 53. This composite score measures local self-reliance potential across water access, food production capacity, energy resources, and supply chain resilience. Higher scores indicate greater potential for self-sufficiency.

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