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Know Your Ground

County Data

Windham County, Connecticut

Self-reliance and preparedness data for Windham County

Very Low

Hazard Risk (6.1/100)

6b

USDA Zone

202

Frost-Free Days

Moderate

Solar (3.9 kWh/m²/day)

Natural Hazard Risks in Windham County

HazardRisk RatingScore
Ice StormRelatively Moderate17.0
LandslideRelatively Moderate14.6
LightningRelatively Low10.2
Cold WaveRelatively Low10.1
TornadoRelatively Low10.1

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

Climate Profile

Temperature & Growing Season

January Avg30°F
July Avg74°F
USDA Zone6b
Frost-Free Days202

Water & Energy

Annual Precipitation53.2
Solar Potential3.9 kWh/m²/day
Wind Speed0.1 m/s
Soil TypeSandy Loam

Local Species

72

Edible species

34

Medicinal species

72

Autonomy Score

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Frequently Asked Questions

What are the biggest natural hazards in Windham County, Connecticut?
Windham County has an overall hazard rating of Very Low based on FEMA National Risk Index data. The top threats are Ice Storm, Landslide, Lightning. Each hazard is scored 0–100 by likelihood and expected impact.
What is the growing season in Windham County?
Windham County is in USDA Hardiness Zone 6b with approximately 202 frost-free days per year. This determines which crops, fruit trees, and perennials can survive your winters and how long your outdoor growing season lasts.
Is Windham County good for solar power?
Windham 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 Windham County?
Our database identifies 72 edible plant species in Windham 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 Windham County?
Windham County has an autonomy score of 72. 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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