County Data
Lewis County, Washington
Self-reliance and preparedness data for Lewis County
Relatively Moderate
Hazard Risk (18.5/100)
Fair
Solar (3.5 kWh/m²/day)
Natural Hazard Risks in Lewis County
| Hazard | Risk Rating | Score |
|---|---|---|
| Volcanic Activity | Very High | 84.8 |
| Avalanche | Very High | 74.7 |
| Landslide | Relatively Moderate | 21.1 |
| Earthquake | Relatively Moderate | 17.2 |
| Riverine Flooding | Relatively Moderate | 12.0 |
Source: FEMA National Risk Index. Scores 0–100, higher = more risk.
Climate Profile
Temperature & Growing Season
| January Avg | 41°F |
Water & Energy
| Annual Precipitation | 17.5″ |
| Solar Potential | 3.5 kWh/m²/day |
| Wind Speed | 0.2 m/s |
| Soil Type | Silt Loam |
Local Species
44
Edible species
20
Medicinal species
50
Autonomy Score
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Frequently Asked Questions
- What are the biggest natural hazards in Lewis County, Washington?
- Lewis 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 Lewis County good for solar power?
- Lewis 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 Lewis County?
- Our database identifies 44 edible plant species in Lewis 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 Lewis County?
- Lewis County has an autonomy score of 50. 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.