County Data
Duval County, Florida
Self-reliance and preparedness data for Duval County
Relatively Moderate
Hazard Risk (21.2/100)
10a
USDA Zone
330
Frost-Free Days
Good
Solar (4.8 kWh/m²/day)
Natural Hazard Risks in Duval County
| Hazard | Risk Rating | Score |
|---|---|---|
| Lightning | Relatively High | 40.9 |
| Coastal Flooding | Relatively Moderate | 31.6 |
| Tornado | Relatively High | 27.9 |
| Riverine Flooding | Relatively High | 27.2 |
| Wildfire | Relatively Moderate | 21.5 |
Source: FEMA National Risk Index. Scores 0–100, higher = more risk.
Climate Profile
Temperature & Growing Season
| January Avg | 56°F |
| July Avg | 81°F |
| USDA Zone | 10a |
| Frost-Free Days | 330 |
Water & Energy
| Annual Precipitation | 51.1″ |
| Solar Potential | 4.8 kWh/m²/day |
| Wind Speed | 0.6 m/s |
| Soil Type | Sand |
Local Species
62
Edible species
27
Medicinal species
81
Autonomy Score
Get Your Duval County Guide
Enter any zip code in Duval County for a full location-specific guide with planting calendars, foraging data, water strategy, and personalized action plans.
Full guide from $14.99 — printable, offline-ready
Frequently Asked Questions
- What are the biggest natural hazards in Duval County, Florida?
- Duval County has an overall hazard rating of Relatively Moderate based on FEMA National Risk Index data. The top threats are Lightning, Coastal Flooding, Tornado. Each hazard is scored 0–100 by likelihood and expected impact.
- What is the growing season in Duval County?
- Duval County is in USDA Hardiness Zone 10a with approximately 330 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 Duval County good for solar power?
- Duval 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 Duval County?
- Our database identifies 62 edible plant species in Duval 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 Duval County?
- Duval County has an autonomy score of 81. 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.