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Know Your Ground

County Data

Jefferson County, Colorado

Self-reliance and preparedness data for Jefferson County

Relatively Moderate

Hazard Risk (16.7/100)

Good

Solar (4.7 kWh/m²/day)

Natural Hazard Risks in Jefferson County

HazardRisk RatingScore
HailRelatively High37.1
WildfireRelatively Moderate25.4
TornadoRelatively Moderate23.9
Cold WaveRelatively Moderate20.4
LightningRelatively Moderate19.5

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

Climate Profile

Temperature & Growing Season

January Avg31°F

Water & Energy

Annual Precipitation1.2
Solar Potential4.7 kWh/m²/day
Wind Speed2.5 m/s
Soil TypeSandy Loam

Local Species

45

Edible species

22

Medicinal species

51

Autonomy Score

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Frequently Asked Questions

What are the biggest natural hazards in Jefferson County, Colorado?
Jefferson County has an overall hazard rating of Relatively Moderate based on FEMA National Risk Index data. The top threats are Hail, Wildfire, Tornado. Each hazard is scored 0–100 by likelihood and expected impact.
Is Jefferson County good for solar power?
Jefferson County has a good 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 Jefferson County?
Our database identifies 45 edible plant species in Jefferson 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 Jefferson County?
Jefferson 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.

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