County Data
Prince William County, Virginia
Self-reliance and preparedness data for Prince William County
Very Low
Hazard Risk (4.9/100)
Moderate
Solar (4.1 kWh/m²/day)
Natural Hazard Risks in Prince William County
| Hazard | Risk Rating | Score |
|---|---|---|
| Tornado | Relatively Low | 10.7 |
| Cold Wave | Relatively Low | 9.2 |
| Winter Weather | Very Low | 8.5 |
| Lightning | Very Low | 6.4 |
| Strong Wind | Very Low | 6.4 |
Source: FEMA National Risk Index. Scores 0–100, higher = more risk.
Climate Profile
Temperature & Growing Season
| January Avg | 30°F |
Water & Energy
| Annual Precipitation | 5.7″ |
| Solar Potential | 4.1 kWh/m²/day |
| Wind Speed | 1.9 m/s |
| Soil Type | Silt Loam |
Local Species
81
Edible species
35
Medicinal species
51
Autonomy Score
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Frequently Asked Questions
- What are the biggest natural hazards in Prince William County, Virginia?
- Prince William County has an overall hazard rating of Very Low based on FEMA National Risk Index data. The top threats are Tornado, Cold Wave, Winter Weather. Each hazard is scored 0–100 by likelihood and expected impact.
- Is Prince William County good for solar power?
- Prince William 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 Prince William County?
- Our database identifies 81 edible plant species in Prince William 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 Prince William County?
- Prince William County has an autonomy score of 51. 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.