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Know Your Ground

County Data

Union County, Illinois

Self-reliance and preparedness data for Union County

Relatively Low

Hazard Risk (10.1/100)

Moderate

Solar (4.3 kWh/m²/day)

Natural Hazard Risks in Union County

HazardRisk RatingScore
Winter WeatherRelatively Moderate20.7
TornadoRelatively Moderate18.8
Heat WaveRelatively Moderate16.3
Strong WindRelatively Moderate15.9
LandslideRelatively Moderate14.3

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

Climate Profile

Temperature & Growing Season

January Avg27°F

Water & Energy

Annual Precipitation6.3
Solar Potential4.3 kWh/m²/day
Wind Speed1.7 m/s
Soil TypeSilt Loam

Local Species

60

Edible species

25

Medicinal species

51

Autonomy Score

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Frequently Asked Questions

What are the biggest natural hazards in Union County, Illinois?
Union County has an overall hazard rating of Relatively Low based on FEMA National Risk Index data. The top threats are Winter Weather, Tornado, Heat Wave. Each hazard is scored 0–100 by likelihood and expected impact.
Is Union County good for solar power?
Union 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 Union County?
Our database identifies 60 edible plant species in Union 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 Union County?
Union 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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