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Know Your Ground

County Data

Snohomish County, Washington

Self-reliance and preparedness data for Snohomish County

Relatively Moderate

Hazard Risk (18.8/100)

Fair

Solar (3.5 kWh/m²/day)

Natural Hazard Risks in Snohomish County

HazardRisk RatingScore
Volcanic ActivityRelatively High53.6
AvalancheRelatively Moderate28.9
LandslideRelatively High25.6
Coastal FloodingRelatively Moderate24.9
EarthquakeRelatively Moderate17.6

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

Climate Profile

Temperature & Growing Season

January Avg42°F

Water & Energy

Annual Precipitation6.4
Solar Potential3.5 kWh/m²/day
Wind Speed0.6 m/s
Soil TypeSilt Loam

Local Species

44

Edible species

20

Medicinal species

47

Autonomy Score

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Frequently Asked Questions

What are the biggest natural hazards in Snohomish County, Washington?
Snohomish County has an overall hazard rating of Relatively Moderate based on FEMA National Risk Index data. The top threats are Volcanic Activity, Avalanche, Landslide. Each hazard is scored 0–100 by likelihood and expected impact.
Is Snohomish County good for solar power?
Snohomish County has a fair 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 Snohomish County?
Our database identifies 44 edible plant species in Snohomish 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 Snohomish County?
Snohomish County has an autonomy score of 47. 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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