County Data
Jefferson County, Florida
Self-reliance and preparedness data for Jefferson County
Very Low
Hazard Risk (7.6/100)
10a
USDA Zone
329
Frost-Free Days
Good
Solar (4.8 kWh/m²/day)
Natural Hazard Risks in Jefferson County
| Hazard | Risk Rating | Score |
|---|---|---|
| Lightning | Relatively Low | 13.7 |
| Tornado | Relatively Low | 13.6 |
| Drought | Relatively Low | 10.6 |
| Landslide | Relatively Low | 10.6 |
| Hurricane | Relatively Low | 9.2 |
Source: FEMA National Risk Index. Scores 0–100, higher = more risk.
Climate Profile
Temperature & Growing Season
| January Avg | 55°F |
| July Avg | 81°F |
| USDA Zone | 10a |
| Frost-Free Days | 329 |
Water & Energy
| Annual Precipitation | 54.6″ |
| Solar Potential | 4.8 kWh/m²/day |
| Wind Speed | 1.7 m/s |
| Soil Type | Sand |
Local Species
62
Edible species
27
Medicinal species
84
Autonomy Score
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Frequently Asked Questions
- What are the biggest natural hazards in Jefferson County, Florida?
- Jefferson County has an overall hazard rating of Very Low based on FEMA National Risk Index data. The top threats are Lightning, Tornado, Drought. Each hazard is scored 0–100 by likelihood and expected impact.
- What is the growing season in Jefferson County?
- Jefferson County is in USDA Hardiness Zone 10a with approximately 329 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 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 62 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 84. 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.