County Data
Union County, Florida
Self-reliance and preparedness data for Union County
Very Low
Hazard Risk (2.9/100)
9b
USDA Zone
338
Frost-Free Days
Good
Solar (4.7 kWh/m²/day)
Natural Hazard Risks in Union County
| Hazard | Risk Rating | Score |
|---|---|---|
| Wildfire | Relatively Low | 6.4 |
| Landslide | Very Low | 6.3 |
| Lightning | Very Low | 5.5 |
| Tornado | Very Low | 4.8 |
| Cold Wave | Very Low | 4.0 |
Source: FEMA National Risk Index. Scores 0–100, higher = more risk.
Climate Profile
Temperature & Growing Season
| January Avg | 56°F |
| July Avg | 80°F |
| USDA Zone | 9b |
| Frost-Free Days | 338 |
Water & Energy
| Annual Precipitation | 48.0″ |
| Solar Potential | 4.7 kWh/m²/day |
| Wind Speed | 0.7 m/s |
| Soil Type | Sand |
Local Species
62
Edible species
27
Medicinal species
85
Autonomy Score
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Frequently Asked Questions
- What are the biggest natural hazards in Union County, Florida?
- Union County has an overall hazard rating of Very Low based on FEMA National Risk Index data. The top threats are Wildfire, Landslide, Lightning. Each hazard is scored 0–100 by likelihood and expected impact.
- What is the growing season in Union County?
- Union County is in USDA Hardiness Zone 9b with approximately 338 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 Union County good for solar power?
- Union 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 Union County?
- Our database identifies 62 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 85. 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.