County Data
Dewey County, South Dakota
Self-reliance and preparedness data for Dewey County
Relatively Low
Hazard Risk (12.2/100)
Moderate
Solar (4.1 kWh/m²/day)
Natural Hazard Risks in Dewey County
| Hazard | Risk Rating | Score |
|---|---|---|
| Cold Wave | Very High | 63.8 |
| Winter Weather | Relatively High | 30.2 |
| Strong Wind | Relatively Moderate | 21.1 |
| Hail | Relatively Moderate | 20.1 |
| Landslide | Relatively Moderate | 19.1 |
Source: FEMA National Risk Index. Scores 0–100, higher = more risk.
Climate Profile
Temperature & Growing Season
| January Avg | 17°F |
Water & Energy
| Annual Precipitation | 0.7″ |
| Solar Potential | 4.1 kWh/m²/day |
| Wind Speed | 3.7 m/s |
| Soil Type | Silt Loam |
Local Species
60
Edible species
25
Medicinal species
50
Autonomy Score
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Frequently Asked Questions
- What are the biggest natural hazards in Dewey County, South Dakota?
- Dewey County has an overall hazard rating of Relatively Low based on FEMA National Risk Index data. The top threats are Cold Wave, Winter Weather, Strong Wind. Each hazard is scored 0–100 by likelihood and expected impact.
- Is Dewey County good for solar power?
- Dewey 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 Dewey County?
- Our database identifies 60 edible plant species in Dewey 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 Dewey County?
- Dewey 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.